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Home My WebLink About20251027.tiffExhibit 37 Page 1 EXHIBIT 37 DRMS PERMIT DECISION LETTER Provide a copy of the DRMS permit Decision Letter, including Financial and Performance Warranty obligations. Colorado Sand Company II, LLC - Kersey Mine Use By Special Review Permit Application Package Date prepared: October 14, 2024 Date last revised: October 21, 2024 COLORADO Division of Reclamation, Mining and Safety Department of Natural Resources Brady Reece Colorado Sand Company II, LLC 2001 Kirby Drive, Suite 360 Houston, TX 77019 Re: Kersey Mine — File No. M-2024-026, Colorado Sand Company II, LLC 112c Construction Materials Reclamation Application Dear Brady Reece: On October 21, 2024 the Division of Reclamation, Mining and Safety concluded its review of the Construction Materials Reclamation Permit Application submitted to the Division on June 7, 2024. The decision reached by the Division is: Awaiting warranty. The amount of financial warranty set by the Division for this operation is $7,159,747.00. You must submit a financial warranty in this amount and a performance warranty in order for us to issue a permit. In the event you have requested a financial warranty form, we will provide you with the applicable form. If you have not, please select a type of financial warranty from Rule 4.3, and then contact us so that we can provide you with the appropriate warranty form. We have enclosed a performance warranty form with this letter for your use. PLEASE NOTE THAT MINING OPERATIONS MAY NOT COMMENCE UNTIL A PERMIT HAS BEEN ISSUED BY THE DIVISION AFTER RECEIPT OF YOUR FINANCIAL AND PERFORMANCE WARRANTIES. A PERMIT CANNOT BE ISSUED UNTIL WE HAVE VERIFIED THE ADEQUACY OF YOUR FINANCIAL AND PERFORMANCE WARRANTIES. If you have any questions, please contact me by telephone at (720) 527-1640, or by email at nikie.gagnon@state.co.us Sincerely, *Li .dabHAIL, Nikie Gagnon Environmental Protection Specialist Enclosure: Performance Warranty cc: Timothy McCarthy, Tamarack Consulting Dustin Krajewski, TRC Companies Physical Address: 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.81% ",sailing Address: DRMS Room 215, 1001 E 62nd Ave, Denver, Co 80216 https://drms.colorado.gov Jared S. Polls, Governor I Dan Gibbs, Executive Director I Michael A. Cunningham, Director COLORADO Division of Reclamation, Mining and Safety Department of Natural Resources PERFORMANCE WARRANTY Permittee/Operator: Colorado Sand Company II, LLC Operation known as: Kersey Mine Permit Number: M-2024-026 This form is approved by the Colorado Mined Land Reclamation Board ("Board") pursuant to C.R.S. 34-32-117 of the Colorado Mined Land Reclamation Act and C.R.S. 34-32.5-117 of the Colorado Land Reclamation Act for the Extraction of Construction Materials. All parties are on Notice from this Document that: The above listed Operator provides this warranty to the Board in conjunction with a reclamation Permit to conduct the above described mining operation on certain lands in Colorado. The "Affected Lands" are described in the above listed reclamation Permit, and include any Permit Amendment(s) approved by the Division of Reclamation Mining and Safety ("Division"). The Colorado Mined Land Reclamation Act, C.R.S. 34-32-101 et seq. ("Hard Rock Act"), and the Colorado Land Reclamation Act for the Extraction of Construction Materials, C.R.S. 34-32.5-101 et seq. ("Construction Materials Act"), both require a permit issued by the Board to include a written promise by the Operator to comply with all requirements of the Hard Rock and Construction Materials Acts (referred to herein together as "Acts"). Through the terms and conditions of this performance warranty and Permit, the Operator agrees to be bound by all requirements of the Acts and all Mineral Rules and Regulations of the Board for Hard Rock, Metal, and Designated Mining Operations (2 C.C.R. 407-1) and all Mineral Rules and Regulations of the Board for the Extraction of Construction Materials (2 C.C.R. 407-4) (referred to herein together as "Rules"). The Operator hereby provides the Board warranties of performance pursuant to C.R.S. 34-32-117(2), (3), and (4)/C.R.S. 34-32.5-117(2), (3), and (4), and promises the Board it will comply with all applicable requirements of the Acts and Rules. The Operator hereby promises the Board it will comply with all of the terms of the reclamation Permit, including any Permit Amendment(s) approved by the Division. This performance warranty obligation of the Operator shall continue until the Operator's liability is released by the Board. The Operator promises to be responsible for reclamation costs up to the amount established by the Board and incorporates its financial warranty to this performance warranty. The Operator agrees to maintain a financial warranty (or warranties) in good standing for the reclamation costs for the entire life of the Permit. The amount of the financial warranty shall be sufficient to assure the completion of reclamation of affected lands if the Division has to complete such reclamation due to forfeiture. If the Board determines the Operator is in default under this performance warranty and the Operator fails to cure such default, the Operator's financial warranty shall be subject to forfeiture pursuant to C.R.S. 34-32-118/34-32.5-118. This performance warranty by the Operator is perpetual and shall remain in full force and effect until all obligations have been met and all associated financial warranty is released by the Board. Any release of liability in a succession of Operators shall comply with C.R.S. 34-32-119/34-32.5-119. The provisions hereof shall bind and inure to the benefit of the parties hereto and their successors and assigns. SIGNED, SEALED AND DATED this day of (date) Operator: Colorado Sand Company II, LLC Signature: Name: Title: (month) (year) NOTARIZATION OF OPERATOR'S ACKNOWLEDGEMENT STATE OF ) COUNTY OF The foregoing instrument was acknowledged before me this day of by: as (name) Notary Public: My Commission Expires (date) SS. (month) (year) of Colorado Sand Company II, LLC (title) (Operator) APPROVED: State of Colorado Mined Land Reclamation Board Division of Reclamation, Mining and Safety By: Michael A. Cunningham Division Director Date Executed: �i TRC September 19, 2024 Ms. Nikie Gagnon Environmental Protection Specialist Colorado Division of Reclamation and Safety 1313 Sherman Street — Room 215 Denver, Colorado 80203 152.6 Cole Blvd., Suite 150 T 303.792.5555 Lakewood, CO 80401 TRCcompanies.com RE: Colorado Sand Company II, LLC Response to DRMS Adequacy Review Letters No. 1, No. 2, and No. 3 Kersey Mine — 112 Construction Materials Reclamation Permit Application File No. M-2024-026 Dear Ms. Gagnon: TRC, on behalf of Colorado Sand Company II, LLC (CSC), herewith responds to the Division of Reclamation, Mining and Safety's (Division/DRMS) August 20, 2024, Adequacy Review No. 1, August 23, 2024, Adequacy Review No. 2, and September 16, 2024, Adequacy Review No. 3 as pertaining to the pending M-2024-026 Construction Materials (112) Reclamation Permit Application. The following is a complete list of Revised Documents associated with this response package: • Attachment 1 Colorado Sand • Attachment 2 Colorado Sand • Attachment 3 Colorado Sand Company 11, LLC Response to DRMS Adequacy Review Letter No. 1 Company 11, LLC Response to DRMS Adequacy Review Letter No. 2 Company 11, LLC Response to DRMS Adequacy Review Letter No. 3 • Attachment A Exhibit D-2: Mine Plan • Attachment B Exhibit D-3: Mine Process Plant and Facilities Layout • Attachment C Weed Control and Management Plan • Attachment D Exhibit F-1: Reclamation Plan Map • Attachment E Well and Pond Locations and Pipeline Routing Options • Attachment F Letter to Jason Surface — CPW District Area Wildlife Manager • Attachment G Correspondence and Settlement Agreement between Chevron and CSC • Attachment H Exhibit C-1: Relevant Features and Adjoining Surface Ownership • Attachment I Wells Ranch LLLP Structure Agreement • Attachment J Table L-1: Reclamation Cost Estimate Ms. Nikkie Gagnon September 19, 2024 Page 2 of 15 TRC appreciates the Division's comments. Should you have any questions or require additional information please feel free to contact Brady Reece (970) 978-9858 or Dustin Krajewski (970) 214-0548. Sincerely, Dustin Krajewski Project Manager on Behalf of Colorado Sand Company II, LLC A TRC ATTACHMENT 1 Colorado Sand Company II, LLC Response Letter to DRMS Adequacy Review Letter No. 1 �i TIRC September 19, 2024 Ms. Nikie Gagnon Environmental Protection Specialist Colorado Division of Reclamation and Safety 1313 Sherman Street — Room 215 Denver, Colorado 80203 1526 Cole Blvd., Suite 150 T 303.792.5555 Lakewood, CO 80401 TRCcompanies.com RE: Colorado Sand Company II, LLC Response to DRMS Adequacy Review Letter No. 1 Kersey Mine — 112 Construction Materials Reclamation Permit Application File No. M-2024-026 Dear Ms. Gagnon: TRC, on behalf of Colorado Sand Company II, LLC (CSC), herewith responds to the Division of Reclamation, Mining and Safety's (Division/DRMS) August 20, 2024, Adequacy Review No. 1 as pertaining to the pending M-2024-026 Construction Materials (112) Reclamation Permit Application. We present our response to each adequacy comment in the provided numerical sequence in order to facilitate the Division's further review. We note that a copy of this response letter has also been hand - delivered to the office of the Weld County Clerk, as required per Rule 1.6.2(1)(c). 6.4.3 Exhibits C & D - Pre -mining & Mining Plan Map(s) of Affected Land (1) During the pre -operation inspection, the Division observed several markers for buried natural gas pipelines along the western side of the permit area. The gas pipelines and easements are depicted on Maps C-1 and D-2, however, setback distances during mining are not defined. The Division acknowledges the Oil and Gas Facility Management Plan described in Appendix D which states all oil and gas infrastructure within the mining blocks has been or is planned for formal plugging and abandonment. However, several of these gas pipelines are shown on Exhibit F - Reclamation Plan Map and therefore presumed to remain throughout mining and reclamation. Are the underground gas pipelines on or within 200 feet of the permit area boundary operational? Will any of these pipelines remain throughout mining and reclamation? Please update the Exhibit D-2 Mining Plan Map to depict setback distances around gas pipelines and well pads that will remain throughout the life of the mine. CSC Response: CSC confirms that any remaining oil & gas pipelines shall have proper setbacks from mining operations. As stated in Exhibit D: Mine Plan, all pipelines within the pit limits will be removed prior to mining operations. Formal abandonment is planned for all oil and gas pipelines and wells within pit limits as shown on the updated D-2: Mine Plan and D-3: Mine Process Plant and Facilities Layout. Additionally, a note specifying that wells within the pit limit will be plugged and abandoned properly, below grade of the pit floor, prior to excavation has been added for clarity. Any oil or gas pipelines and well pads that are to remain active within the Permit Area Boundary are located outside of pit limits, with appropriate setback distances. Exhibit D-2: Mine Plan has been updated to depict setback distances using dimensional callouts around any gas pipelines and well pads that will remain throughout the life of the mine. CSC provides Exhibit D- 2: Mine Plan as Attachment A and Exhibit D-3: Mine Process Plant and Facilities Layout as Attachment B. (2) During the August 1 pre -operation inspection, the applicant stated there will be a 50 -foot setback from the mining operation to the permit boundary around the entire site. Please show this setback on the Exhibit D-2 Mine Plan. CSC Response: CSC confirms it will implement the 50 -foot setback from the permit boundary to the mining operation. Previously there was a 50 -foot setback in place, however this was not Ms. Nikie Gagnon September 19, 2024 Page 2 of 6 clear due to thick permit area boundary lines and the scale used for the map. For added clarity, CSC provides the following revisions to Exhibit D-2: Mine Plan: • A note has been added stating "Contractor shall abide by 50'-0" minimum setback from Permit Area Boundary for all mining operations". • Dimensional callouts have been added depicting the setbacks from the centerline of the Permit Area Boundary to the nearest boundary of the Mining Sequence Zones. CSC provides an updated Exhibit D-2: Mine Plan as Attachment A. 6.4.5 Exhibit E - Reclamation Plan (3) In Exhibit E, the Applicant refers to a five-year post reclamation monitoring and maintenance plan. Please submit the monitoring and maintenance plan to the Division. In accordance with Rule 3.1.10(6), for post reclamation weed control, a plan should be developed in consultation with the county extension agency or weed control district office and include potential noxious weed species, specific control measures to be applied, a schedule for when control measures will be applied and a post -treatment monitoring plan. CSC Response: The reference to a five-year post reclamation monitoring and maintenance "plan" is an error and should instead reference a five-year post reclamation "period". CSC developed Exhibit E: Reclamation Plan in consultation with the landowner, Wells Ranch LLLP (Wells Ranch), which specifies that concurrent reclamation will be employed at each reclaimed area, including the terminal pit and site facilities at mine closure, to ensure that vegetation and stabilization objectives are achieved. Regarding the need for a weed management plan, and in accordance with Rule 3.1.10(6), CSC provides a Weed Control and Management Plan (Attachment C) for the Kersey Mine prepared according to Weld County recommendations. The Weed Control and Management Plan adheres to the noxious weed best management practices set forth by Weld County Code, Chapter 15 Article I — Noxious Weed Management Enforcement Policy in conjunction with the Colorado Noxious Weed Act and Natural Resource Conservation Service (N.R.C.S.) recommendations. The Weed Control and Management Plan includes potential noxious weed species found in the permit area, specific control measures to be applied, a schedule for application of control measures, and a post -treatment monitoring plan. 6.4.6 Exhibit F— Reclamation Plan Map (4) The Reclamation Plan Map in Exhibit F-1 depicts slope grading/reclamation up to or across existing gas pipelines in the permit area. Based on the answer to Question 1 above, please update the Reclamation Plan Map in Exhibit F to depict setback distances around gas pipelines and well pads that will remain throughout the life of the mine. CSC Response: All gas pipelines within the pit limits will be properly abandoned and removed prior to mining. All well pads within the pit limits will be removed. Any gas lines within the pit limits that will be properly plugged and abandoned have been removed from Exhibit F-1. Additionally, note #2 has been added to Exhibit F-1 to describe the plugged and abandoned oil and gas wells within the pit limits that will be lowered below the grade of the pit floor in accordance with the Energy and Carbon Management Commission (ECMC) requirements, prior to excavation. CSC has met with ECMC and Chevron to identify the appropriate processes to lower the plugged and abandoned wells within the pit limits. Any well pads and pipelines to remain active are shown on Exhibit F-1 with appropriate setbacks. CSC provides a revised Exhibit F-1: Reclamation Plan Map (Attachment D) reflective of these updates. �i TRC Ms. Nikie Gagnon September 19, 2024 Page 3 of 6 6.4.7 Exhibit G — Water Information (5) Per Rule 6.4.7(4), the Operator shall indicate the sources of water to supply the project water requirements for the mining and reclamation phases of the project. The applicant states water from the Cache la Poudre Ditch System will be diverted through a series of pipelines to a water storage pond located approximately two miles north of the site and distributed to the site as needed via a proposed pipeline. During the pre -operation inspection, the representatives showed the Division the location of the storage ponds and indicated the landowner plans to construct a water pipeline for the mining operation. Please describe the proposed pipeline in detail, including the timeline for construction, ownership and operator of the pipeline, approximate acres of disturbance, and proposed post mining reclamation. CSC Response: Details requested by the Division are provided as follows: • The proposed buried water pipeline to the plant will be constructed of 10" HDPE and will have a disturbance area of approximately 6.4 acres. • Beginning at the Wells Ranch water ponds, the water pipeline will advance south approximately 2.5 miles to the Processing Plant Area Boundary, as outlined in the Well and Pond Locations and Pipeline Routing Options (Attachment E). Multiple pipeline route options are provided and the route will be finalized during the design phase. • The pipeline will be constructed, owned, maintained, and operated by Wells Ranch. Wells Ranch plans to maintain the pipeline for future oil and gas, and/or agricultural uses post -mining and reclamation. • CSC will purchase water directly from Wells Ranch. • Design, permitting, and construction of the Pipeline will commence upon approval of the Kersey Mine, USR (PRE 23-0269) permit. • The following is an estimated design, permitting, and construction schedule for the Pipeline: o A. D — USR Permit approval o B. D+270 days — Design, permitting, and preparation of bid package o C. D+291 days — Award of contractor contract o D. D+306 days — Begin Pipeline construction o E. D+420 days — Pipeline completion and project closeout. CSC provides Well and Pond Locations and Pipeline Routing Options as Attachment E. 6.4.8 Exhibit H - Wildlife Information (6) In Exhibit H, the applicant lists one state -listed species and four species of special concern that are likely or possible to occur in the permit area. Additionally, the applicant lists two federally listed or candidate species have the potential to occur within the permit area. On Page 3 of Exhibit H, the applicant states, "CSC submitted a letter to the CPW District Area Wildlife Manager regarding species of concern in the Permit area." Please submit a copy of this letter sent to CPW along with their response to the Division. (7) CSC Response: A copy of the February 8, 2024, letter from TRC, on behalf of CSC, sent via email to Jason Surface, Area Wildlife Manager for the CPW Fort Collins Office is hereby attached (Attachment F). TRC has not received a response from CPW to this letter. Rule 3.1.8 states that "all aspects of the mining and reclamation plan shall take into account the safety and protection of wildlife on the mine site, at processing sites, and along all access roads to the mine site with special attention given to critical periods in the life cycle of those species which require special considerations." Exhibit D-2 Mine Plan depicts mining through surveyed black -tailed prairie dog towns in the first, second, and tenth years of mining. Page 3 �i TRC Ms. Nikie Gagnon September 19, 2024 Page 4 of 6 of Exhibit H states that black -tailed prairie dog colonies are habitat for the Western burrowing owl which is a State threatened species. Additionally, during the pre -operation inspection on August 1, 2024, the Division observed a Western burrowing owl in a prairie dog colony near the proposed process plant area. The Division is in the process of reviewing Exhibit H and consulting with the CPW Northeast Region office regarding any special considerations for species within the proposed mining area. The Division will follow-up with the applicant for additional information as needed. CSC Response: On August 23, 2024, CSC received Adequacy Letter #2 from Ms. Nikie Gagnon with comments on Exhibit H and recommendations from Colorado Parks and Wildlife. CSC provides our response to those CPW comment recommendations and the DRMS Adequacy Letter #2 as Attachment 2. 6.4.19 Exhibit S - Permanent Man -Made Structures (9) (9) The Applicant provided signed structure agreements with Bonanza Creek, and DCP Operating Company for oil and gas wells and pipelines located on or within 200 feet of the proposed mining area. Exhibit C-1 depicts Noble Energy and Noble Midstream as an owner of numerous oil and gas facilities within the permit area. During the pre -operation inspection, the representatives stated that Noble was purchased by Chevron Corporation and CSC is working on an agreement with them. Please update the maps in Exhibit C-1 to show Chevron as the owner of the facilities and provide a signed and notarized structure agreement from Chevron. In lieu of a structure agreement, the applicant may provide proof that Chevron has been notified of the mining application and CSG is working to obtain an agreement with them which demonstrates that the applicant will provide compensation for any damage to the structures owned by Chevron. CSC Response: The discrepancies between the entities depicted on Exhibit C-1: Relevant Features and Adjoining Surface Ownership and the notarized structure agreements provided in Exhibit S: Permanent Manmade Structures are a result of name and/or ownership changes evolving over the decades or years prior to CSC's compilation. The owners depicted on Exhibit C-1 align with Weld County Clerk and Recorder and ECMC records. Noble Energy and Noble Midstream are both entities acquired by Chevron and the associated oil and gas facilities are included in an ongoing agreement currently being negotiated with Chevron Corporation. This agreement as it stands to date and ongoing correspondence with Chevron since April 2024 are provided as Attachment G. To further address the Division's comment, a table depicting the subsidiaries of the parent company for reference has been added to the revised Exhibit C-1: Relevant Features and Adjoining Surface Ownership (Attachment H) to provide clarification on ownership. CSC will provide the fully executed agreement. On Exhibit C-1, Duke Energy, PDC Energy, Colorado River Devco LP, Associated Natural Gas, Inc., and Rocky Mountain Infrastructure are depicted as owners of oil and gas structures in the proposed permit area. Per Rule 6.4.19, please provide a notarized structure agreement to the Division for each company depicted on the map in Exhibit C-1. CSC Response: The discrepancies between the above -listed entities and the notarized structure agreements provided in Exhibit S: Permanent Manmade Structures and the absence of notarized structure agreements for the above -listed entities are a result of name and/or ownership changes evolving over the decades or years prior to CSC's compilation. In order to provide clarification in this regard, CSC provides the following Table 1: Entity Clarification: �i TRC Ms. Nikie Gagnon September 19, 2024 Page 5 of 6 Table 1: Entity Clarification Parent Company Subsidiary/Acquisition Entity DCP Operating Company, LP DCP Midstream, LP Duke Energy Field Services LP Associated Natural Gas Corporation Chevron Corporation Noble Midstream Partners LP Noble Energy, Inc. Colorado River DevCo LP United States Exploration, Inc. PDC Energy, Inc Oneok NGL Gathering LLC N/A Civitas Resources (formerly known as Bonanza Creek Energy, Inc.) Bonanza Creek Energy Operating Company, LLC Rocky Mountain Infrastructure, LLC (subsidiary to Bonanza Creek Energy Operating Company, LLC) Table 1 has also been added to Exhibit C-1: Relevant Features and Adjoining Surface Ownership (Attachment H). (10) Exhibit G lists four groundwater wells within the permit area. Per Rule 6.4.19, please submit structure agreements for the groundwater wells and associated structures, tanks and troughs, within 200 feet of the permit area. CSC Response: CSC acknowledges the groundwater wells within the Permit Area Boundary. Three of the existing water wells are owned by Wells Ranch. A copy of the structure agreement with Wells Ranch is provided as Attachment I. CSC has been in direct communication with Wells Ranch. Wells Ranch has committed to sign the structure agreement and CSC will provide a signed and notarized agreement under a separate submittal immediately upon execution. One well is a monitoring well owned by Chevron Corporation. This agreement as it stands to date with Chevron is provided as Attachment G. (11) During the pre -operation inspection, the Division observed fence lines around the property. Per Rule 6.4.19, please submit a structure agreement(s) for the fences within 200 feet of the permit area. CSC Response: CSC acknowledges the fence line around the Permit Area Boundary. These fences are owned by Wells Ranch. A copy of the structure agreement with Wells Ranch is provided as Attachment I. CSC has been in direct communication with Wells Ranch. Wells Ranch has committed to sign the structure agreement and CSC will provide a signed and notarized agreement under a separate submittal immediately upon execution. (12) Exhibit D - Mining Plan page 9 states mine traffic must pass through a guard station and private access gate at the intersection of County Road 68 and Road 64. Who owns and operates the guard station? Additionally, truck traffic will travel approximately 2 miles on a private road to the mine entrance. Per Rule 6.4.19, please submit structure agreements for the guard shack and gate, and the private road that will be utilized by the mine operation. CSC Response: The guard station, private access gate at the intersection of County Road 68 and Road 64, and private road CR 64 that will be used for access to the Mine are owned by �i TRC Ms. Nikie Gagnon September 19, 2024 Page 6 of 6 Wells Ranch. A copy of the structure agreement with Wells Ranch is provided as Attachment I. CSC has been in direct communication with Wells Ranch. Wells Ranch has committed to sign the structure agreement and CSC will provide a signed and notarized agreement under a separate submittal immediately upon execution. (13) The mine plan depicts an Excel Energy transmission line adjacent to the southeast corner of the permit area. What is the distance in feet from the permit boundary to the easement for the powerline? Per Rule 6.4.19, please submit structure agreements for the powerline if this easement is within 200 feet of the proposed permit boundary. CSC Response: CSC acknowledges the transmission line adjacent to the southeast corner of the Permit Area Boundary, specifically located in Section 13 of T5N R63W. The easement for this transmission line referenced by the Division is located 271 feet from the Permit Area Boundary. Per Rule 6.4.19, because the easement is not within 200 feet of the Permit Area Boundary, a structure agreement is not required. �i TRC ATTACHMENT 2 Colorado Sand Company II, LLC Response Letter to DRMS Adequacy Review Letter No. 2 h*i TRC September 19, 2024 Ms. Nikie Gagnon Environmental Protection Specialist Colorado Division of Reclamation and Safety 1313 Sherman Street — Room 215 Denver, Colorado 80203 1526 Cole Blvd., Suite 150 T 303.792.5555 Lakewood, CO 60401 TRCcompanies.com RE: Colorado Sand Company II, LLC Response to DRMS Adequacy Review Letter No. 2 Kersey Mine — 112 Construction Materials Reclamation Permit Application File No. M-2024-026 Dear Ms. Gagnon: TRC, on behalf of Colorado Sand Company II, LLC (CSC), herewith responds to the Division of Reclamation, Mining and Safety's (Division/DRMS) August 23, 2024, Adequacy Review No. 2 as pertaining to the pending M-2024-026 Construction Materials (112) Reclamation Permit Application. We provide our response to each CPW recommendation in the provided alphabetical sequence in order to facilitate the Division's further review. We note that a copy of this response letter has also been hand - delivered to the office of the Weld County Clerk, as required per Rule 1.6.2(1)(c). 6.4.8 Exhibit H - Wildlife Information (1) The Division received a comment from Colorado Parks and Wildlife regarding the application. The comment is attached for your review. Please acknowledge and address the comment and make changes to the application as necessary. CPW RECOMMENDATIONS: (a) Construction Timing - Since prairie dogs are present within the project boundaries, if initial construction occurs from March 15 to October 31, we recommend completing a Burrowing Owl survey per CPW recommendations. If Burrowing owl nests are present (as stated Burrowing owls were during the most recent survey), because this is a large disturbance, CPW recommends no activities occur within % mile (1320 feet, 400 meters) of the nest site during the nesting season March 15 through August 31. Although Burrowing Owls may not be actively nesting during this entire period, they may be present at burrows up to a month before egg laying and several months after young have fledged. Therefore, it is recommended that efforts to eradicate prairie dogs or destroy abandoned towns not occur between March 15 and October 31 when owls may be present. Because nesting Burrowing Owls may not be easily visible, it is recommended that targeted surveys be implemented to determine if burrows are occupied. More detailed recommendations are available in a document entitled "Recommended Survey Protocol and Actions to Protect Nesting Burrowing Owls," which is available from the CPW. CPW recommends conducting raptor surveys prior to construction. If initial construction is slated for the spring and summer, please incorporate active raptor nest buffers and avoidance periods. All migratory birds are protected under the Migratory Bird Treaty Act, and removal or disturbance of any migratory bird nest would require consultation with CPW and US Fish and Wildlife Service (USFWS) prior to disturbance. CSC Response: CSC will implement measures to reduce impacts to burrowing owls and other migratory birds. Should construction occur during the burrowing owl nesting season in Colorado (March 15 -August 31), CSC will apply CPW recommendations to conduct pre -construction nest surveys and targeted surveys to determine if burrows are occupied. CSC will avoid the eradication of prairie dogs and destruction of abandoned towns between March 15 and October 31 when owls may be present. Ms. Nikie Gagnon September 19, 2024 Page 2 of 3 Should construction occur during the general raptor nesting season in Colorado (December 1 - August 31), CSC will apply CPW recommendations to conduct pre -construction nest surveys. If active raptor nests, including burrowing owl nests, are identified during the survey, CSC will implement the recommended seasonal restrictions and buffer zones around the nest site during construction in coordination with the USFWS and CPW. (b) Fencing - CPW is concerned for the safety of Mule deer, White-tailed deer and Pronghorn Antelope. in the area for the proposed project. CPW recommends that if fencing (project perimeter or internal) is erected, either during or after the project, it should be the type that would allow the free passage of wildlife. Fencing plans should avoid the use of woven wire - type fences that will trap or prevent the movement of wildlife. CPW recommends using three or four -strand smooth -wire fencing with a bottom strand height of 17 inches above ground level and a maximum top strand height of 42 inches above ground level, along with the installation of double stays between posts. CPW's "Fencing with Wildlife in Mind" brochure. CSC Response: CSC acknowledges the importance of minimizing safety risks for big game. CSC will abide by the fencing recommendations of CPW for any new fencing on the project. (c) Noxious Weeds - Also of importance to CPW is the revegetation of disturbed soils and the control of noxious weed species through the development of a noxious weed management plan prior to initiating construction activities. The revegetation of disturbed areas and control of invasive weed species are important components of the project and it is critically important that the site be restored back to the native plant community that currently exists on site. CPW prefers that native vegetation be retained on -site during the operational lifespan of the project, both as potential habitat for wildlife and to ensure successful reclamation of the project area, as noxious weeds could spread to adjacent habitats outside the project area. CPW recommends that the applicant consult with the Weld County and Natural Resource Conservation Service (N.R.C.S) for the best noxious weed management practices. CSC Response: CSC acknowledges the importance of revegetating disturbed soils and controlling noxious weed species. To this end, CSC has updated the Reclamation Plan to include a Weed Control and Management Plan (Attachment C). The Weed Control and Management Plan adheres to the noxious weed best management practices set forth by Weld County Code, Chapter 15 Article I — Noxious Weed Management Enforcement Policy in conjunction with the Colorado Noxious Weed Act and Natural Resource Conservation Service (N.R.C.S.) recommendations. (d) Wood Perennial Plan Replacement and Native Re -seeding - Per the proposed reclamation plan, there are thus far no plans to revegetate the site with perennial plants (referred to as trees and shrubs). However, this proposed project area is historically referred to as the Greeley Dune Fields, which are home to the target commodity (sand) and associated woody perennial plant species such as sand sage, which is uniquely adapted to this habitat and soil type. Should removal of sand sage and other woody perennial plant species (yucca, Skunkbrush Sumac, Sand Cherry, etc) occur, CPW recommends said species be replaced at a 3:1 ratio. CPW also recommends that native species be re -seeded, including locally native grass species (sand bluestem, prairie sandreed, blue grama, etc.) and forbs (rocky mountain bee plant, silky prairie clover, etc), which would be found in this unique habitat type and would benefit both wildlife and future rangeland operations. CPW recommends that the applicant consult with N.R.C.S and CPW for further species identification and reclamation Ms. Nikie Gagnon September 19, 2024 Page 3 of 3 due to the unique nature of this habitat. If onsite mitigation of native woody perennial species cannot be achieved onsite, CPW would like to coordinate off -site mitigation for those losses. CSC Response: This recommendation from CPW is noted. The project occurs on private land dominated by nonnative herbaceous species and five percent shrub species. At the time of reclamation, CSC will review potential modifications to the seed mix in coordination with the landowner, CPW, and N.R.C.S, and if feasible, implement recommendations for reclamation of the project area with native species and replacement ratios. (e) Wildlife Escape Ramps - During open pit or open trench mining operations, CPW recommends backfilling escape ramps in areas where steep slopes occur. Escape ramps will allow wildlife to safely exit an open pit or trench if they become entrapped. CSC Response: CSC acknowledges the importance of allowing wildlife to safely exit an open pit or trench. The steepest slopes in active CSC pits will be a maximum of 22.5 degrees, which is well below the CPW-recommended maximum of 45 degrees for wildlife escape ramps for watering facilities and open storage tanks (CPW Biology Technical Note No. 55, Wildlife Escape Ramps for Watering Facilities & Open Storage Tanks, March 3, 2016); therefore, entrapment in the pits is not anticipated to present a hazard to wildlife in the area. ATTACHMENT 3 Colorado Sand Company II, LLC Response Letter to DRMS Adequacy Review Letter No. 3 �i TIRC September 19, 2024 Ms. Nikie Gagnon Environmental Protection Specialist Colorado Division of Reclamation and Safety 1313 Sherman Street — Room 215 Denver, Colorado 80203 1528 Cole Blvd., Suite 150 T 303.792.5555 Lakewood, CO 80401 TRCcompanies.com RE: Colorado Sand Company II, LLC Response to DRMS Adequacy Review Letter No. 3 Kersey Mine — 112 Construction Materials Reclamation Permit Application File No. M-2024-026 Dear Ms. Gagnon: TRC, on behalf of Colorado Sand Company II, LLC (CSC), herewith responds to the Division of Reclamation, Mining and Safety's (Division/DRMS) September 16, 2024, Adequacy Review No. 3 as pertaining to the pending M-2024-026 Construction Materials (112) Reclamation Permit Application. We present our response to each adequacy comment in the provided numerical sequence in order to facilitate the Division's further review. We note that a copy of this response letter has also been hand - delivered to the office of the Weld County Clerk, as required per Rule 1.6.2(1)(c). Exhibit L - Reclamation Cost Estimate (1) Table L-1 includes a cost for 15 truckloads of Miscellaneous Solid Waste Removal/Disposal. Please provide the volume of a truckload or estimate the total volume of the solid waste that will be disposed of off -site. CSC Response: The truckload volume for miscellaneous solid waste removal/disposal is 12 cubic yards per truckload. This volume has been added to the revised Table L-1: Reclamation Cost Estimate in Attachment J. (2) Table L-1 includes a cost estimate to rip/scarify 22.8 acres of the Southwest Primary Haul Roads. Please provide dimensions for these two roads. Additionally, Exhibit D-2 Map depicts a Northwest Haul Road. Please update the reclamation plan to include this road in the estimate and provide the dimensions. (3) CSC Response: The haul road dimensions have been added to Exhibit D-2. The haul roads have a combined area of 44 acres. The haul roads have been incorporated into the Reclamation Cost Estimate. CSC provides a revised Exhibit D-2: Mine Plan (Attachment A) and Table L-1: Reclamation Cost Estimate (Attachment J). The application states that at any given time, the maximum area of disturbance will include: the active face area and the recent (previous) mine out blocks, consisting of (up to) five yearly mine blocks, and the 107 -acre plant/facilities area. The first five years of the mine plan proposes to mine 585 acres. Additionally, in Exhibit D, page 14, the applicant states that no reclamation activity is planned for Years 1 or 2 and only 42 acres will be reclaimed in Year 3. A total of 140 acres of reclamation is anticipated by the end of Year 5. Therefore, please revise the cost estimate to reflect reclamation of the disturbance area during the first five years, Ms. Nikie Gagnon September 19, 2024 Page 2 of 2 including Mining Areas 0-5 depicted on Exhibit D-2 Mine Plan map, the footprint of the plant/facilities area, and the three main haul roads. CSC Response: Table L-1 has been updated to reflect the area of disturbance that would occur at the end of Year 5 of the Mine Plan. The area of disturbance includes the active face area and the previously mined out blocks plus the 107 -acre plant and facilities area. The total area of disturbance for the first five years of the mine plan plus the plant and facilities area is 585 acres. The total reclaimed land by the end of year five will be 140 acres. CSC provides a revised Table L-1: Reclamation Cost Estimate as Attachment J. ATTACHMENT A Exhibit D-2: Mine Plan Map CAPW WORKING-TRD\00753924\0-1 MINE PLAN.DWG-B/1a/24 • 0 II 0 SECEION {Nor lxnLOlx WERANCH AREA)� SECTION 35 7 WELLS RANCH PERMIT AREA BOUNDAR 0 r STATE OF COLORADO A D r • 0 I f I J ▪ -- - D LIMIT i?— III rl PERMD AREABDUNDARr- /. I PD LIMIT so —Et'-- �d I Iii z AREA 77 rt 0 PERMIT AREA BOUNDARY s STATE Or COLORADO r SECTION 21 TM ROW 7B RANCH LLC PRARIE?(SEE NOTE 2 ` q WELLS RANCH � 16 i AREA'. ACRES W Li PERMIT .110819 SEE NO STOCKPILE DISCARD E,0 ACRES YEAR 3 AREA 93 ACRES 721 NORTHWEST HAUL ROAD: 0626' X 100' 0,9V VIP 20 AR, 7571 T6N31:1 70 RANO. MC PERMIT AREA BOUNDARY • PERMIT AREA BOUNDARY _ 7‘47'±' PRCESS P'LAN'T AREA (SEE FIGURES D.2) IN OWING CELLS 70 RANCH LLC 6 SECTION 16 STATE OF COLORADO SECTION 1 T5N ROW WELLS RANCH 50 A • PERMIT AREA BOUNDARY i rt C P PERMIT AREA BOUNDARY 1� r SECTOW LLC 70 RANCH LLC rTEN'IINING, PLANT OPERATE EAAY PROCESSING, R (241 HOURSPER DAYREPAIRS M , WITHOUT RESTRICTION PICTION PER BOARD Or COUNTY RWEP COMMISSIONERS APPROVAL. THE FACILITY MAY OPERATE SEVEN (7) 2 BURROWING OWL HABITAT - NO INITIAL D,STURBANCE TO PRAIRIE DOG TOWNS 3. LIMITED BY WELLS RANCH GUARD SHACK AND SECURiPe GATES AT MINE 4 EXISTING WEL TO BE PLUGGED AND ABANDONED FOR E SEQUENCE AREA. S TS -0 TO BE USED IN RECLAMATION BY THE END OE YEAR 6 OIL AND GAS WELL SYMBOL LEGEND: fJ ABANDONED LOCATION O WELL - SHUT IN lei WELL - PLUGGED AND ABANDONED itt WELL • PRODUCING 0 WELL -TEMPORARILY ABANDONED MINING SEQUENCE: PLANT IMPORT (YEAR D) V�� YEAR 1 V/h1 YEAR 2 //////A YEAR 3 YEAR YEARS A V YEAR„ �'///////✓� YEARS Y/////// YEAR f //// J YEAR 12 YEAR 13 r/// //^d YEARN l/// //AI YEAR 15 YEAR l//// A // A YEAa1a/j��j� YEAR 19 TEMPORARY MINING DEFERRAL ZONE -TMD2-1 YEAR 10I //// A TEMPORARY MINING DEFERRA,ONE,MD2-2 rUMILA YEAR 11 �// UNDISTURBED AREA LINETYPE LEGEND: OE PROPOSED EDGE OF ROAD PROPOSED EQUIPMENT MAIO PROPOSED CONTOUR MIN° PROPOSED CONTOUR EXIST' G OVERHEAD ELECTRIC BUILD NG SECTION DIVIDE FERMI AREA BOUNDARY SECTION DUART,R5 OEMO FENCE EXISTI G PRAIRIE DOG TOWN GAS EXIST' G UNDERGROUND GAS CAS DEMO GAS. SYMBOL LEGEND: 000 GENERAL DIRECTION Of ADVANCE REINFORCED CEMENT CONCRETE - PROPOSED GATE PROPOSED GRAVEL 990 HPUL ROAD WELL • CONSTRUCT EF,A, 0 000 1920 SCALE NO SEPTEMBER 2024 EXHIBIT D-2 COLORADO SAND COMPANY II, LLC KERSEY MINE MINE PLAN �i TIC TRC ENVIRONMENTAL CORP. mHBIler, ,SUITE 15°LAKEWOOD. CO 80401 DESIGN REVISION DRAWN B, [NECKED BY 100 NUMBER. ATTACHMENT B Exhibit D-3: Mine Process Plant and Facilities Layout c\PW WORIGNG-TRD\DOMB A\OR MINE PROCESS PLANT AND FACILITIES MOUTON.-B/RO/zA � \ \ �N PERMIT AREA BOUNDARY LI - -- -- 0 - --" SALEB/LOADOUT —__ ACCESS ROAD B^ ROLLER COMPARED CONCRETE srau:s/LOaoouT Mil Map SATE OTE i '.®. 1 1 EXIT ROAD SWALE \\ - I \\\\ %IT ROAD _- ExrnoaV O HDPT 1 a^p opE ROAD SWALE / - --- SWALE FROM CULVERT • PIT UMW ME - - - .1` ,,,A,Ou ✓ Ex a� ,. �� V MIDFF NE I OFFICE I ELL USE AIR 'L AND GRAVEL 8 i`' - PROCESSSTOCKPILE(DR° ANO AIR 60M,`= DYEFBREA%RGD E. _< ORV SAND STORAGE E� FULL BUILD OUT), 60 ACRES I P A rgPAAn /� .. � v e® MAINMOBILE E nu`cMerv.sHov CREENN N • STALLATIONG � /REN�RD�GEM�TG STATION (DIESEL. t � 1 -- DEE,DLAND ;---�Tl DRYERUNHI I �i9 �•``'` * �L fpn MNI 8.11 D1.1.1 I 1;. ° ... r 0 � : GxDD6 ES FEED AND RAMPS - al a PRA G TOWN �9 SEE NOTE 2) \\` 1 N. 5uRGE SI g. re -4 LI lill 80.6.1 / ti I \\N �„ IANT PADSWALE . SWALE TO PITT \\` P — HOLDING.CELLS 1 �PITLIMF _- R R HC -2 �..,`� WATER TREATMENT Tom' /WET PLANT ENCLOSURE IP f '')I m ON o rT L PILOHTs�i AT FULL WW1 OUT)':2I ACRES a 5 t /1 1 VI WATER TREATMENT K' -I. -- LIMCrin ITo J - - ss�, P rPITLIMIT � /PIT \\‘ �� a - —J � FEEDSTOCK) -- f a STOCKPILE: — / 0 MI+ - NHADLRDOB 00 17 i_-_j_- _�_ OIL GALwgepNMoOLLEGEND: NED CATION 0 WELL SHUT IN 3y1 WELL- PLUGGED AND ABANDONED WELL - PRODUCING T WELL-TEMPORPAILYA84NOONED DTEXCENGSHALL BE THECASEOFPUBDDURINRIVATE EMERGENCHT HOURS Y, OR LY,PRONos[oEQUIPMENT OF PUBLIC OR PRIVATE EMERGENCY, OR T MAKE THE NECESSARY. REPAIRS O EQUIPMENT. PLANT CIIUTI6M AV G, OFFICES AND REP. FA(20) HOURS PER DAY, WI OPERATE TWENTY-FOUR*- BOARD OF COUNTY YCSEVEN MMISENNERS APPROVAL. THE FACILITY IRIE AIRIE DOG! 1 - DISTURBANCE PRA TOWNS FROM MARCH 15 • OCTOBER a GUARD SHACK AND SECURITY GATES AT MINE NCF/EXIT. . WELLS WITHIN THE PIT LIMIT AND CONSTRUCTION AREA ARE TO BE PLUGGED AND ABANDONED PROPERLY, THE GMOE OF THE PT FLOOR, PRIOR TO EXCAVATION. TS 0 150' 500' HNETYPELEGEND SYMROLLEGEND: PROPOSED REINFORCED CEMENTCONwFTF OSED EDGE OF ROAD PROPOSED GRAVEL MAJOR PROPOSED CONTOUR MIN RP POSED CONTOUR PROPOSED SECTIONpylOIE ING �v V EXISTING PRAIRIE DOG TOWN SERIONAOUARo fl5DAR Y UNTIBELOW UNDERGROUND GAS OEMOIInoN PROPOSEODATE HauLRoaD DEMOGAS G15 EASEMENT EXISTIN150' DEMO EASEMENT SCALE : 1' = 160 EXISTING GRAVEL ROAD AUGUST 2x24 mum D_9 COLORADO SAND COMPANY II, LLC KERSEY MINE MINE PROCESS PLANT & FACILITIES LAYOUT A� TRic TRCENVIRONMENTD„MAL CORP. oHR,Po,'g =4sR,P, D. oR Dry oR"wNN.. ,,,,, "RB,R N,PCRF0R.. oR.aEw:. M . �4 ,DRN.MRRR. „M, ATTACHMENT C Weed Control and Management Plan Prepared for: Colorado Sand Company II, LLC 1i TR C Table of Contents Acronyms and Abbreviations 1.0 INTRODUCTION 1 1.1 Project Description 1 1.2 Purpose 1 1.3 Objectives 2 2.0 NOXIOUS WEED DELINEATION 2 2.1 Existing Habitat and Vegetation 2 2.2 Noxious Weed Identification 3 2.3 Mapping 5 3.0 NOXIOUS WEED MANAGEMENT 5 3.1 Training 5 3.2 Preventative Measures 6 3.3 Treatment Methods 6 4.0 MONITORING 7 5.0 REFERENCES 8 Tables Table 1. List of Potential Weed Species in the Permit Area 4 Figures Figure 1. Project Vicinity Map Figure 2. Mine Plan Figure 3. Process Flow Diagram Appendices Appendix A. Weld County Noxious Weed Fact Sheets Appendix B. Weed Inventory Report (PLACEHOLDER) Appendix C. Completed Vehicle and Equipment Inspection Logs (PLACEHOLDER) Kersey Mine September 2024 Weed Control and Management Plan i i TRC Acronyms and Abbreviations Notation Definition BMP Best Management Practice CDA Colorado Department of Agriculture CNAP Colorado Natural Areas Program CSC Colorado Sand Company II, LLC Project Kersey Mine Project Permit Area Location of the Kersey Mine Project Plan Weed Control and Management Plan WCPWD Weld County Public Works Department Kersey Mine September 2024 Weed Control and Management Plan ii 10) TIRC 1.0 Introduction Colorado Sand Company II, LLC's (CSC) proposed Kersey Mine (Project) encompasses the S1/4 of Section 34, T06N, R63W of the 6th Principal Meridian and all of Sections 2, 3, 10, 11, 14, and 15, T05N, R63W of the 6th Principal Meridian in unincorporated Weld County, Colorado. The proposed Project is located approximately 55 miles northeast of the Denver, Colorado metropolitan area; and, as depicted on the U.S. Geological Survey Kersey, Colorado 7.5° topographic quadrangles, is approximately 4.9 miles south from the intersection of Weld County Road 67 and Colorado Highway 392 (Figure 1). The Project, (i.e., the Permit Area) will be, in its entirety, located on and within the fee -simple (i.e., privately owned surface controlled by CSC, as lessee and/or its assignees, with access to Wells Ranch being controlled/limited by a secure, gated entry. 1.1 Project Description The proposed Project includes the construction of an open -cut sand mine pit facility, integrated wet and dry sand processing facilities, and final product storage and loadout facilities. Sand will be mined from an open -cut pit, stockpiled, and introduced to the wet plant which will mechanically separate, wash, and filter materials by grain size. Wet plant and decant water will be recovered in the clarifier unit for water recycling. The current proposed development plan includes the construction of the mining facility and an access/loadout road. Proposed Permit Area improvements associated with the facility will be completed as a temporary construction. Mine reclamation activities will be implemented following the conclusion of Project operation. The proposed Permit Area is presented in Figure 2. Proposed construction and facility setup will generally be completed in seven work phases. They include grubbing and clearing, access/loadout road construction, stormwater control measure construction, safety berm construction, site grading, facility equipment setup, and interim reclamation. The Process Flow Diagram is presented in Figure 3. 1.2 Purpose This Weed Control and Management Plan (Plan) describes conditions, measures, and best management practices (BMPs) that will be implemented by CSC and its contractors to avoid and minimize the establishment and spread of noxious and invasive plant species during the construction, operation, and site reclamation activities at the mine. CSC recognizes the potential for the spread of noxious weeds on public and private lands and is committed to following the procedures described in this Plan. This Plan will satisfy compliance with the Colorado Division of Reclamation, Mining, and Safety Code of Colorado Regulations (2 CCR 407-1) and follows Weld County Public Works Department (WCPWD), Weed Management Division BMPs. This plan will discuss in detail the following: • Measures to control introduction and spread of noxious weeds within the Permit Area • Worker training • Inspection procedures, activities, and equipment used in the Permit Area • Post reclamation monitoring for noxious weeds • Monitoring and control methods. Kersey Mine September 2024 Weed Control and Management Plan 1 li TR C For the purpose of this document, noxious weeds and invasive plant species (weeds) are defined by the Colorado Noxious Weed Act (1990), Colorado Revised Statue Title 35 Article 5.5 (CRS 35-5.5-101) as "an alien plant or parts of an alien plant that have been designated by rule as being noxious to have been declared a noxious weed by a local advisory board, and meets one of the following criteria: • Aggressively invades or is detrimental to economic crops or native plant communities • Is poisonous to livestock • Is a carrier of detrimental insects, diseases, or parasites • The direct or indirect effect of the presence of this plant is detrimental to the environmentally sound management of natural or agricultural ecosystems." 1.3 Objectives To avoid and minimize the establishment and spread of weeds both on and off -site during the construction, operation, and site reclamation activities at the Project site, CSC or its contractor will perform the following actions: • Identify areas within the Permit Area where specific weeds are established. • Identify areas where earth disturbance is proposed and whether there are weed populations that have the potential to establish and spread outside of the area. • Outline weed -control and abatement methods and practices to be employed during all phases of the project to minimize the establishment and spread of specific weed species. • Prevent the introduction of new invasive species that are not currently known to occur in the Permit Area. 2.0 Noxious Weed Delineation 2.1 Existing Habitat and Vegetation According to the Vegetation Information Report for the Kersey Mine (TRC 2023), the Permit Area is characterized as grassland with several gravel well pads and roadways interspersed throughout the site with flat to gently rolling topography. Herbaceous species comprised approximately 77 percent cover of the Permit Area with the remaining area shrubs (5 percent) and bare ground (18 percent). Trees were absent within the Permit Area. Four non-native species (cheatgrass [Bromus tectorum], burning brush [Bessie scoparia], foxtail millet [Setaria italica], and Russian thistle [Salsola tragus]) comprised approximately 62 percent of the total herbaceous cover. Russian thistle represented over 50 percent cover of the herbaceous species on site and was present in each vegetated herbaceous plot. The Permit Area is comprised of a relatively homogenous landscape; no wetlands and one former stock pond feature were identified within the Permit Area. Saltgrass (Distichlis spicata) was present in the National Wetlands Inventory mapped wetlands, but hydric soil indicators were absent and hydrologic indicators were only marginally present. One 0.38 -acre manmade stock pond was delineated along an ordinary high-water mark consisting of a defined bank situated above mud cracks. The stock pond contained no water at the time of the survey, and Kersey Mine September 2024 Weed Control and Management Plan 2 ti C vegetation was mostly absent except for intermittent patches of saltgrass and kochia (Bassia scoparia) along and above the ordinary high water mark bench. The region surrounding the Project area averages an annual high temperature of 89.6° F and an annual low temperature of 13.9°F. Summer temperatures during July and August average 92°F and 89°F, respectively. Winter temperatures during January and February average 46° F and 56°F, respectively. The average annual temperature is 47.5°F. The average annual precipitation is 14.8 inches. Average annual snowfall is 38.3 inches. May is the rainiest month, averaging 2.4 inches of precipitation. The grazed vegetative community within the Project area provides limited habitat for wildlife. However, the following state -listed sensitive wildlife species were identified as having the potential to occur in the Permit Area: • Black -footed ferret • Plains pocket gopher • Long -billed curlew • Mountain plover • Ferruginous hawk • Western burrowing owl These species and their habitats should be considered before any mechanical or chemical noxious weed control methods are initiated. 2.2 Noxious Weed Identification The Colorado Department of Agriculture (CDA) has evaluated noxious weeds throughout the state and has created a hierarchy policy for certain species. Noxious weeds are recognized as List A, List B, and List C species. According to CDA the list rating is defined as follows: A -List — Potential to be very invasive noxious weeds that quickly transform an area. The plants on this list either are not in Colorado yet or are present in very limited numbers and eradication of these species is still possible. These species are designated for eradication. B -List — Potential to be very invasive noxious weeds that quickly transform an area. These plants are typically already established in Colorado, however, on a local level (i.e., in Weld County) they may just be moving in. Therefore, the species on this list have control/suppression requirements and may have eradication requirements designed to stop the continued spread of these species. C -List — Potential to be very invasive noxious weeds that quickly transform an area. Species on this list require effective integrated weed management plans and may have local control/suppression/eradication requirements designed to stop the continued spread of these species. Fact sheets of weed species that have been found in Weld County are included in Appendix A. These fact sheets have been developed by WCPWD, Weed Management Division and CDA. A list of weed species of concern with potential to occur within the Permit Area is provided in Table 1 below. Kersey Mine September 2024 Weed Control and Management Plan 3 1i Tr�C Table 1. List of Potential Weed Species in the Permit Area Common Name Scientific Name Rating — (eradication, suppression) Cypress Spurge Euphorbia cyparissias A — e Hairy Willow -Herb Epilobium hirsutum A — e Japanese Knotweed Polygonum cuspidatum A — e Myrtle Spurge Euphorbia myrcinites A — e Purple Loosestrife Lythrum salicaria A — e Absinth Wormwood Artemisia absinthium B — e Black Hen bane Hyoscyamus niger B — e Bull Thistle Cirsium vulgare B — e Chamomile species Matricara perforate B — e Chinese Clematis Clematis orientalis B — e Houndstongue Cynaglossum officinale B — e Moth Mullein Verbascum Blattaria B — e Oxeye Daisy Leucanthemum vulgare B — e Plumeless Thistle Carduus acanthoides B — e Spotted Knapweed Centaurea stoebe B — e Sulfur Cinquefoil Potentilla recta B — e Tamarisk Tamarix rammosissima B — e Wild Caraway Carum carvi L. B — e Yellow Toadflax Liaria vulgaris B — e Canada Thistle Cirsium arvense B — s Common & Cutleaf Teasel dipsacaceae family B — s Eurasian Watermilfoil Myriophyllum spicatum B — s Jointed Goatgrass Aegilops cylindrica B — s Musk Thistle Carduus nutans B — s Russian Knapweed Centaurea repens B — s Scotch Thistle Onopordum acanthium B — s Yellow Nutsedge Cyperus esculentus B — s Boucingbet Saponaria officinalis B — es Common Tansy anacetum vulgare L. B — es Dalmatian Toadflax Linaria genistifolia ssp. dalmatica B — es Dames Rocket Hesperis matronalis B — es Diffuse Knapweed Centaurea diffusa B — es Hoary Cress Cardaria draba B — es Leafy Spurge Euphorbia esula B — es Perennial Pepperweed Lepidum latifolium B — es Kersey Mine Weed Control and Management Plan September 2024 4 1i TR C Common Name Scientific Name Rating — (eradication, suppression) Russian Olive Elaeagnus angustifolia B — es Cheatgrass/Downy Brome Bromus tectorum C — e Common Mullein Verbascum thapsus C — e Field Bindweed Convolvu/us arvensis C — es Puncturevine/Goatheads Tribulus terrestris L. C — e Source: WCPWD 2024, Weed Management Division A noxious weed inventory will be completed prior to the start of construction, following the procedures described in "Creating an Integrated Weed Management Plan - A Handbook for Owners and Managers of Lands with Natural Values (Colorado Natural Areas Program [CNAP] 2000), or similar guidance. A map and an ongoing list of weeds observed within the Permit Area during this weed inventory and through subsequent monitoring will be added to this Plan and presented in Appendix B. This list will be maintained and updated when additional weeds are identified. Additionally, the WCPWD Weed Management Division has identified Non -Native and Nuisance Plants of interest. If identified on site, CSC or its contractors will contact the Division and these plants will be managed on a case -by -case basis. These plants include Kochia (Kochia scoparia), Russian thistle (Sa/so/a tragus), Curlycup gumweed (Grindelia squarrosa), Salsify (Tragopogon dubius), Horseweed (Conyza canadensis), Black Medic (Medicago lupulina), and Blue lettuce (Lactuca tatarica). 2.3 Mapping The mapped location of weeds identified within the Permit Area during the weed inventory and subsequent inspections will be documented via GPS units, noted on field maps, and depicted on a map provided in Appendix B. The map will be utilized to show the area(s) of weed cover at the site. Subsequent updates to the map will be compared to the initial weed inventory to identify increasing, decreasing or stable trends of weeds within the Permit Area and will be utilized in developing additional control strategies (if needed). 3.0 Noxious Weed Management 3.1 Training Prior to construction, CSC will require its contractors to be familiar with this Plan and provide training regarding weed management to all individuals who visit and work within the Permit Area. Training will include weed identification, weed impacts on agriculture, livestock, and wildlife, weed proliferation, and fire prevention, as well as the preventative measures presented in this Plan. Kersey Mine September 2024 Weed Control and Management Plan 5 h) TR C 3.2 Preventative Measures The following preventative measures will be implemented to avoid and minimize the establishment and spread of weeds both on and off -site prior to construction, during construction, during operation, and during site reclamation activities at the proposed Project site: • Before ground -disturbing construction activities begin, the CSC -appointed biologist will conduct a baseline survey of the Project site to establish a weed inventory and map the location of weeds. The results of the weed inventory survey will be added to Appendix B. • Identified weeds will be flagged in the field by a CSC project biologist or its contractor. The flagging will alert construction personnel that weeds are present and access into these areas will be restricted until weed management control measures have been implemented. • All vehicles and equipment will be inspected for and cleaned (if needed) prior to admission to the Permit Area, to ensure they are free of soil and debris capable of transporting weed seeds, roots, or rhizomes. If cleaning is warranted, the vehicle and/or equipment will either be instructed to exit the Permit Area and return once cleaned or staged on 10 -mil or thicker plastic sheeting and washed using high-pressure water spraying equipment. Seeds, plants, debris, and water will be collected. The solids will be bagged and deposited with non -hazardous solid waste. The liquids will be allowed to evaporate. Upon completion the plastic sheeting will be folded onto itself and disposed of with non -hazardous solid waste. Vehicle inspection and cleaning activities will be documented, and a log will be kept in Appendix C. • Prior to and at the completion of each work shift, mine workers will inspect, remove, and dispose of weed seed and plant parts found on their clothing and personal equipment. Debris removed will be bagged and deposited with non -hazardous solid waste. Boot wash stations will be utilized when appropriate. • CSC and its contractors will limit the footprint of any vegetation and/or ground disturbance to the absolute minimum necessary to perform the activity safely and as designed. CSC will utilize a phased approach, concentrating and completing activities in specific areas before moving to other areas, when possible. • CSC and its contractors will avoid creating unnecessary soil conditions that promote weed germination and establishment. Contractors will work closely with the appointed biologist to identify BMPs for the site to promote native vegetation growth. • Following weed mitigation, cleared vegetation will be stockpiled and topsoil will be separated. The cleared vegetation will be disposed of in accordance with federal, state, and local regulations in a manner that prevents the material from re-establishing growth within the Permit Area or spreading off -site. • CSC and its contractors will ensure materials and seeds utilized during reclamation are certified as weed -free. These materials include but are not limited to straw, hay bales, mulch, topsoil, and seed. 3.3 Treatment Methods CSC will implement the following weed control measures in accordance with all federal, state, and local regulations and agency agreements. Additionally, treatment methods and materials Kersey Mine September 2024 Weed Control and Management Plan 6 1i TR C will be managed and handled in accordance with the Project Spill Prevention Control and Countermeasure plans, Stormwater Management Plans, and the Health and Safety Plan. Prior to construction — CSC or its contractor will first apply herbicides to "List A", "List B", and weeds listed in Table 1 that are classified as poisonous to livestock (refer to fact sheets in Appendix A) that were identified and mapped during the weed inventory. This focus will provide the most effective control strategy and the most benefit to native plant competition and establishment. The appropriate herbicide treatment and application rate and timing is identified on the species fact sheets included in Appendix A. Herbicides will be applied only by a CDA certified applicator, or by individuals under direct supervision of the certified applicator. Treatments will be conducted in a manner that minimizes potential impacts to sensitive plant and wildlife species, and pollution to surface and groundwater. During construction — CSC or its contractor will perform mechanical control of weeds through the use of mowing and cutting tools to sever above ground portions of weeds from its roots, and/or perform cultivating activities through grubbing and clearing which will scrap off topsoil, turn over the soil and strip the site of all vegetation. Stockpiled vegetation will be handled as described in Section 3.2 of this Plan. Ongoing — CSC or its contractor will perform subsequent herbicide treatments at the discretion of the appointed biologist at the conclusion of ongoing monitoring efforts explained in the following section. Subsequent treatments may be implemented to avoid and minimize the establishment and spread of weeds both on and off -site. Action will take place only when careful consideration indicates that leaving the weed populations unchecked will result in more damage than controlling it with available methods. Herbicides will be applied by a CDA certified applicator, or by individuals under direct supervision of the certified applicator. Treatments will be conducted in a manner that minimizes potential impacts to sensitive plant and wildlife species, and pollution to surface and groundwater. 4.0 Monitoring The implementation of this Plan will be monitored by CSC's appointed environmental inspector and documented in weekly monitoring reports and checklists during the growing season. Annual weed inventories will be conducted following the start of construction until one year after the completion of reclamation at the site to ensure the effectiveness of preventative measures and treatment methods. If monitoring surveys identify new colonization or spread of weeds within the Permit Area, preventative measures will be re-evaluated, and additional treatment will be implemented for weed species carrying a "List A" and "List B" rating. Kersey Mine September 2024 Weed Control and Management Plan 7 Ii TIRC 5.0 References Colorado Natural Areas Program (CNAP). (2000). Creating an Integrated Weed Management Plan - A Handbook for Owners and Managers of Lands with Natural Values. CNAP, Colorado State Parks, Colorado Department of Natural Resources, and Colorado Department of Agriculture, Division of Plant Industry, Denver, CO. March 2000. Available online: https://www.cde.state.co.us/stateinfo/ TRC Companies, Inc. (TRC). (2023). Colorado Sand Company Kersey Mine Reclamation Permit Application Package, Exhibit J Vegetation Information. Prepared for Colorado Sand Company, LLC, April 2023. Weld County Public Works Department (WCPWD). (2024). Weed Management, Weed Management Division, WCPWD. Available online at: https://www.weld.gov/Government/Departments/Public-Works/Weed-Manaqement Kersey Mine September 2024 Weed Control and Management Plan 8 �i TIRC Figures 0 a_ U a LL O a OO 0 31 Wel > 5N 63W ACCESS ROAD SITE ENTRANCE: LAT: 40°26'22.29"N LONG: 104°25'7.20"W KERSEY MINE PERMIT AREA BOUNDARY _ I PLANT AREA BASE MAP: USGS 7.5 MINUTE TOPOGRAPHIC QUADRANGLE, KERSEY QUADRANGLE (NAD 83). STATE PLANE ZONE: COLORADO NORTH (501) DATA SOURCES:TRC AMI PRIVATE ROAD 0 2,000 4,000 D FEET 1:66,000 1" = 5,500' NM PROJECT: TITLE: DRAWN BY: SITE EXIT: LAT: 40°26'9.13"N �. LONG: 104°24'4.00"W COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO PROJECT VICINITY MAP J.STRONA CHECKED BY: B. TRACY APPROVED BY: E. PENATE DATE: SEPTEMBER 2024 C PROJ. NO.: 535891 FIGURE 1 526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO KERSEY MINE CAPW WORKING-TRD\00Tsa92CD-1 MINE PLAN.DWG - 8/29/24 • II • I II 0 SECIION 34 {Nor lxnLOlx TTT WERANCH AREA)� SECTION 35 WELLS RANCH PERMIT AREA BOUNDARYI • \ • STATE OF COLORADO A D • • I f I J -- - D LIMIT i?— III rl PERIM-A EABDUNDARr- /. I PIT LIMIT —\_ 12: e s0 — I Iii z AREA: 77 . L W RANCH COWAN • 0 PERMIT AREA BOUNDARY • • • STATE Or COLORADO • • SECTION TT TBN ROW m RANCH uc 1Y i{ PRAVICI RNOTE 2 ` q WELLS RANCH � 16 i AREA'. ACRES W Li PERMIT NUM I, .110819 SEE NO r rTEN'IINING, PLANT OPERATE EAAY PROCESSING, R (241 H0URSPER DAY, REPAIRS M WITHOUT RESTRICTION PICTION PER BOARD P COUNTY RWEP COMMISSIONERS APPROVAL. THE FACILITY MAY OPERATE SEVEN (7) 2 BURROWING OWL HABITAT - NO INITIAL DISTURBANCE TO PRAIRIE DOG TOWNS 3. 7STOErAM'S'S.V'NXETA2- BE LIMITED BY WELLS RANCH GUARD SHACK AND SECURiDe GATES AT MINE 4 EXISTING WELL TO BE PLUGGED AND ABANDONED FOR E SEQUENCE AREA. 5 TS -0 TO BE USED IN RECLAMATION BY THE END OP YEAR 6 OIL AND GAS WELL SYMBOL LEGEND: fJ ABANDONED LOCATION O WELL - SHUT IN lei WELL - PLUGGED AND ABANDONED itt WELL • PRODUCING 0 WELL -TEMPORARILY ABANDONED MINING SEQUENCE: PLANT IMPORT (YEAR D) V�� YEAR 1 V/h1 YEAR 2 //////A YEAR 3 YEAR YEARS A V YEARS V///,' YEAR„ �'///////✓� YEARS Y/////// YEAR f //// J STOCKPILE DISCARD 60 ACRES V. 7571 70 RANO.. 70 RANCH LLC YEAR 12 YEAR 13 r/// //^d YEARN l/// //AI YEAR IS YEAR IG I/<//e/�/a PERMIT AREA BOUNDARY l//// A //// A YEARn V//�/d YEAa1a/j��j� YEAR 19 TEMPORARY MINING DEFERRAL TONE-TMD2-1 YEAR 10I //// A TEMPORARY MINING DEFERRAL ZONE-TMD2-2 [-XiMILA YEAR 11 �// UNDISTURBED AREA • PERMIT AREA BOUNDARY • • ]lo PROCESS P'LAN'T AREA (SEE FIGURES D M NIDAL 1 GROWTH u / LINETYPE LEGEND, OWING CELLS OLDING CELLS PROPOSED EDGE OF ROAD PROPOSED EQUIPMENT MAIO PROPOSED CONTOUR MIND PROPOSED CONTOUR OE EXIST' 6 OVERHEAD ELECTRIC BUILD NG SECTION DIVIDE FERMI AREA BOUNDARY SECTION DUART,R5 EMS, 6 FENCE EXIST' G PRAIRIE DOG TOWN CAS DEMO GAS. SECTION 16 TRY R 03W STATE OF COLORADO SECTION 1 WE. RANCH 50 A • PERMIT AREA BOUNDARY i • C P BERNDT AREA BOUNDARY • 70 RANCH LLC 6 • SYMBOL LEGEND: 000 GENERAL DIRECTION OF ADVANCE REINFORCED CEMENT CONCRETE - PROPOSED GATE PROPOSED GRAVEL 990 HPUL ROAD WELL • CONSTRUCT FF,A, 0 000 1920 SCALE NO AUGUST 2024 FIGURE 2 COLORADO SAND COMPANY II, LLC KERSEY MINE MINE PLAN �i TIC TRC ENVIRONMENTAL CORP. 1S26 COLECOEB ,SUITE 15°LAKEWOOD. CO 1 DESIGN REVISION DRAWN [NECKED BY OKRAIEWSKI 100 NUMBER. CONVEYOR ----------------- ------ RETURN TER PUMP SPRAY WZR PUMP WA � 5103 � JUNE 2024 FIGURE' 3 COLORADO SAND COMPANY II, LLC KERSEY MINE PROCESS FLOW DIAGRAM TIC TRC ENVIRONMENTAL CORP. REVISION OP OR IV PI PE ON APPENDIX A Weld County Noxious Weed Fact Sheets Rangeland -Pasture Recommendations Absinth Wormwood Identification and Management Absinth wormwood (Artemisia absinthium) is a robust perennial forb that grows 16 to 48 inches tall with large alternate leaves that are oblong in shape. Leaves are divided 2 to 3 times into deeply lobed leaflets. Coarse stems appear to be clumped and may be woody at the base. Absinth dies back in the winter and regrows from the soil level each spring. It has a slightly bluer, gray -green color than our native sages. The color is partly due to numerous very short, fine hairs on the leaves and stems. Flower stalks appear at each upper leaf node and produce numerous flower heads, 1/8 inch diameter, which appear from late June to mid -August. Each flower head has many small inconspicuous yellow flowers and each fruit contains one seed less than 1/16 inch long. These small seeds are easily dispersed by wind, water, animals and in hay. Absinth is a prolific seed producer and seed soil longevity is estimated at 10 years. Seedlings may emerge any time soil moisture is available and may go unnoticed for some time as the seedling produces several small leaves close to the soil surface before bolting. Absinth wormwood is a member of the Sunflower family. It was introduced from Europe as an ornamental herb and is easily recognized by its strong sage odor. It is most often found on dry soil, overgrazed pastures and rangeland, wastelands and roadsides. Absinth wormwood is a relative newcomer to Colorado and with the exception of one mountain area has infested a minimal number of sites. Absinth has been identified in Weld County, a site far removed from the majority of Colorado acres. Prevention is the best control. Proper grazing management and rotational grazing are among the best preventative measures. On the backside of this sheet are absinth wormwood management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of absinth wormwood. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Proper grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures are more resistant to absinth wormwood invasion. Bare spots caused by overgrazing are prime habitat for weed infestations Mechanical - Hand pulling or digging when the soil is moist is possible with very small infestations. Proper disposal of specimens is imperative if the plants are removed after flowering or seed set. Mowing alone is not an effective control measure. Some success has been realized if late season mowing is followed by fall herbicide application. The success is not as significant as mid -summer herbicide application alone. Biological - There is no biological control available at this time. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Clarity + 2,4 D Amine 1 qt./acre for each product or 1 oz/gal water for each product Apply when the plant is 12 inches tall through flowering. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water Milestone 7 oz/acre or 0.35 oz/gal water Apply when plants are actively growing. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water Curtail 2 qt/acre or 2 oz/gal water Spring- at 6-10" growth stage to pre -bud and in fall rosette stage. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Tordon 22K *this is a Restricted Use Pesticide* 1 pt/acre or 0.5 oz/gal water Apply when the plant is 12 inches tall through flowering. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water Updated on: 07/2015 List B Species Colorado Department of Agriculture 305 Interlocken Pkwy Broomfield, CO 80021 (303)869-9030 weeds@state.co.us Key ID Points 1. Shallow lobed leaves that have sticky hairs. 2. Flowers have purple centers and veins. Rangeland, pasture, and riparian site recommendations Black henbane Identification and Management Identification and Impacts Black henbane (Hyoscyamus nlger) was introduced from Europe as an ornamental and medicinal herb. In Colorado it is mostly found on the western slope. The plant blooms June through September and may be an annual or biennial. A mature plant reaches 1 to 3 feet in height with foliage that has a fowl odor. Leaves are shallowly lobed to coarsely toothed with sticky hairs. The outer part of the flower is brownish yellow in color with a purple center and veins. Fruits are approximately 1 inch long with 5 lobes. A11 parts of Black henbane are poisonous to both livestock and humans when ingested. However; the plant is usually avoided by livestock due to the foul odor. The plant is a strong competitor for moisture and nutrients and produces a persistent litter effecting germination and growth of native plants. Black henbane invades disturbed and overgrazed sites. A good preventable measure is to guard against overuse. Habitats for Black henbane included disturbed open spaces, roadsides, fields, waste places and abandoned gardens. It grows in most soil types but likes sandy or well drained loam soils. The seed viability or longevity is considered to be 1 to 5 years. The key to effective control of Black henbane is guarding against disturbance and overuse, this can prove to be a good preventative measure against black henbane. Mechanical control and chemicals are the most commonly recommended method. Controlling plants in the spring or early summer prior to seed production is most effective, follow-up treatments are recommended to pick up missed or late bolting plants. Details on the back of this sheet can help to create a management plan compatible with your site ecology. Black henbane is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be either eradicated, contained, or suppressed depending on the local infestations. For more information visit www.colorado.gov/ag/csd and click on the Noxious Weed Management Program. Or call the State Weed Coordinator at the Colorado Department of Agriculture, Conservation Services Division, 303-239-4100. Black henbane 5il• IMi^.irk dui, 0•1,e,.. La,.. .. - a...� .,. Weal..,,.5.,,, -, ..._ ,. ;... Photos © (2 on bottom, left): Steve Dewey, Utah State University; (Top left and top center): Mary Ellen Harte, forestryimages.com and Map above by Crystal Andrews, Colorado Department of Agriculture. 1 2 Integrated Weed Management recommendations List B Species Management Recommendations http://www.colorado.gov/ag/csd CULTURAL Cultural controls are possible in theory, but are very time consuming and expensive. Complete removal of any seedlings or newly established plants by continual hand pulling is also possible. BIOLOGICAL here is no biological control available for Black henbane. Since biological control agents take years to research, develop and release, no releases are expected in the foreseeable future. For more information, contact the Palisade Insectary of the Colorado Department of Agriculture at 970-464-7916. MECHANICAL Hand pull or dig from moist soil, so the entire tap root system can be removed. illage will control henbane, but is usually not recommended due to the land it occupies: rangeland, roadsides and pastures. Be sure to bag specimens carefully if removed during or after flowering. Integrated Weed Management! Controlling plants in the spring or early summer prior to seed production is most effective, follow-up treatments are recommended to pick up missed or late bolting - plants. Constant monitoring ofsite after last adult flowering plant is removed is suggested since seed viability can be up to 5years. HERBICIDES NOTE: The following are recommendations for herbicides that can be applied to range and pasturelands. Rates are approximate and based on equipment with an output of 30 gal/acre. Please read label for exact rates. Always read, understand, and follow the label directions. herbicide label is the LAW! Herbicide Rate Application Timing Metsulfuron (Escort XP) 1 oz. product/acre + 0.25%v/v non-ionic surfactant Surfactant absolutely necessary. Apply late bolt to early flower. (Summer to Early Fall) Chlorsulfuron* (Telar) 1 oz. product/acre + 0.25%v/v non-ionic surfactant Apply late bolt to early flower. (Summer to Early Fall) Chlorsulfuron + Metsulfuron(Cimarron Plius) 0.625-1.25 oz./acre +0.25%v/vnon- ionic surfactant Apply late bolt to early flower. (Summer to Early Fall) Note: *This herbicide has residual soil activity that will affect all broadleaf seedlings germinating after application has occurred. Additional herbicide recommendations for other species can be found at: aoo.al/TvWnv9 The Top to bottom photos, © (Top 2 photos) Stevens County (Washington State) Noxious Weed Control Board; and bottom photo David Hallinan, Bannock County Weed Superintendent, Idaho Weed Awareness Campaign. Black henbane Rangeland -Pasture Recommendations Bouncingbet Identification and Management Originally from Europe, bouncingbet (Saponaria officinalis) also known as soapwort, is an escaped ornamental found commonly in pastures, on roadsides, and in waste areas. A Colorado B List Noxious weed, it is a member of the Pink family. Bouncing bet is a perennial, 1-3 feet tall reproducing through underground rhizomes and seed. Most invasive colonies develop from underground rhizomes. Stems are erect and stout, jointed, with opposite smooth leaves. Leaves are paired on the stem, 1 to 4 inches long and V2 to 2 inches wide, with 3 distinct veins. Leaf margins are smooth. Leaves originate at swollen nodes on the stem. The flowers of bouncingbet are found densely clustered at the ends of main stems and branches and consist of 5 petals. Each petal has a distinct notch or indentation at the end. Flower color ranges from white to pink. Flowers are fragrant and are present from July -September. Seeds are found in capsules and are dull -black in color. Most plants will foam if crushed and rubbed. The plant has been used for soap and is being studied for medicinal uses. Bouncingbet is potentially toxic to animals and humans if ingested. Although the entire plant is poisonous, the seeds contain the largest concentration of toxic saponins. Most animals will avoid eating seeds in contaminated feed because it is apparently distasteful. Livestock will also avoid bouncing bet in pastures unless the grass is in short supply and dry. On the backside of this sheet are bouncingbet management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304- 6496 ext 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Bouncing bet. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Control methods include pulling or cutting flowering stalks to prevent seed production. When pulling mature plants, stems often break off and the taproot can resprout if not removed. The site will need to be monitored for several years as available seeds will continue to germinate. Flower heads should be bagged for landfill disposal or dried and burned where permissible. Biological -There is no recommended biological control at this time. Herbicides - Selectively applying a broadleaf herbicide according to label recommendations may also be an effective means of control. Herbicides, if used, should be applied to the rosettes in the late fall or early spring to avoid damage to adjacent vegetation. The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup UltraMax 1.6% solution or 2 oz/gallon water Apply at early plant growth. Use caution when applying near grasses or other desirable vegetation. Roundup will possibly kill surrounding vegetation. No residual soil activity. Non -selective herbicide. Will kill all vegetation. Outlaw (2,4-D and Dicamba) 1 to 2 pints/acre or 0.5 oz — 1.0 oz/gallon water Spring- at emergence of seedlings. Continue until frost. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Grazing restrictions. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- at or just after full -bloom and/or fall. DO NOT apply when outside temperatures will exceed 85 degrees. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Garden Replacement Options Native garden replacement plants for bouncingbet include Rocky Mountain bee plant (Cleome serrulata) wild geranium (Geranium viscosossomum), fireweed (Epilobium angustifolium), Palmer penstemon (Penstemon palmeri), and penstemon `Prairie Jewel' (P. grandiflorus `Prairie Jewel). Cultivated garden replacement plants for bouncingbet include purple coneflower (Echinacea spp.), garden phlox (Phlox paniculata), and pinks (Dianthus spp.). Rangeland -Pasture Recommendations Bull thistle Identification and Management Bull thistle (Cirsium vulgare) is a non-native biennial forb that reproduces solely by seed. A biennial is a plant that completes its lifecycle within two years. During the first year of growth, bull thistle appears as a rosette in spring or fall. During the second year in mid to late spring - the stem bolts, flowers, sets seed, and the plant dies. Flowering may occur from early June until the first snowfall or hard frost. Pink - magenta to purple flower heads top each stem. Flower heads are "gumdrop" shaped and spines extend all around the base of the flower heads. A single flower head can produce from 40 to over 250 seeds, and individual plants may have anywhere from one to 475 flower heads or more. Making it a prolific seed producer, therefore, the key to managing this plant is to prevent seed production. Bull thistle can grow up to 6 feet tall. The leaves are green on the upper side, and woolly on the lower side giving it a grayish appearance. The bull thistle prefers full sun, it cannot tolerate shade. It requires moist soils. Bull thistle tends to invade disturbed, overgrazed areas. Once a pasture is infested, the livestock carrying capacity for that area is significantly decreased. Bull thistle may also occur on rangeland, roadsides, ditches, riparian areas, and trails. On the backside of this sheet are bull thistle management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of bull thistle. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Mowing or chopping is most effective when musk thistle plants are at bud stage. Grubbing or digging the plants below the root crown level is effective as well. Do this while the plant is in the rosette stage. Biological - Livestock tend to avoid grazing on bull thistle, although horses and cattle have been known to eat the flowerheads. Two exotic weevils, the flower head weevil (Rhinocyllus conicus) and the rosette weevil (Trichosirocalus horridus) have been introduced in several states, and appear to be effective biological control agents that limit populations of bull thistle. However, these insects are not in use in Wisconsin due to the risks presented to rare native thistles. When used together, these insects provide fair to good control. Expect to wait at least 3 to 5 years for the insects to establish significant populations and achieve optimum management results. Insects can be obtained at no charge from the Colorado Department of Agriculture. Please call 970- 464-7916 or go to www.palisadeinsectary.com for more information. Herbicides — The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow the herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments 2,4-D Amine 1 qt./acre or 1 oz/gal water Spring/fall rosette — before flowering stalk lengthens. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 1.5 — 2 qts./acre or 1.5-2.0 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Clarity 1 qt./acre or 1.0 oz/gal water Spring rosette — before flowering stalk lengthens and/or late fall treatment of rosettes. DO NOT apply near or under trees and/or shrubs or when outside temperatures will exceed 85 degrees. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Milestone 3 to 5 oz/ acre Apply to plants in the spring and early summer at rosette or bolting stage or to the fall rosette. It is permissible to treat seasonally dry wetlands and transitional areas between upland and lowland sites. DO NOT rotate to a broadleaf crop within 1 year of application. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Rangeland -Pasture Recommendations Canada thistle Identification and Management Canada thistle (Cirsium arvense) is a non-native deep-rooted perennial that spreads by seeds and aggressive, creeping horizontal roots (rhizomes). Canada thistle can grow 2 to 5 feet in height. The leaves are oblong, spiny, bright green in color, and are only slightly hairy on the undersurface. Flowers occur in small clusters that form on the ends of branches. They are about 1 cm in diameter, tubular shaped, and vary from white to purple in color with a strong vanilla scent (female flowers). Canada thistle emerges from its root system from late April through May. It begins to flower in late spring to early summer with increase in day length. Canada thistle only produces about 1,000 to 1,500 seeds per plant. Typically, it reproduces vegetatively through a creeping root system, and can quickly form dense stands. Every piece of root, from 1/ to 1 inch in length, is capable of forming new plants. The key to controlling Canada thistle is to eliminate seed production and also to reduce the plant's nutrient reserves in its root system through persistent, long-term management. Canada thistle is one of the most feared noxious weeds in the U.S. as it can infest many land types, from roadsides, ditch banks, riparian zones, pastures, irrigated cropland, to the most productive dryland cropland. Forage production is severely reduced because cattle will not graze near infestations. Combining control methods for Canada thistle is imperative. The weed needs to be continually stressed, forcing it to exhaust root nutrient stores and eventually die. Of all control methods, prevention is most important. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. On the backside of this sheet are Canada thistle management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 400-3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Canada thistle. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to Canada thistle invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Mowing can be effective if repeated at about one -month intervals throughout the growing season. Combining mowing with herbicides will further enhance control of this weed. Apply herbicides in spring and/or fall, and then mow during the summer months. Biological - Canada thistle is typically unpalatable to livestock. Although, cattle have been known to eat the plant when it is in the early growth stages. A gall fly, Urophora cardui, is effective on large infestations and when combined with other control methods. Insects can be obtained at no charge from the Colorado Department of Agriculture. Please call 970-464-7916 or go to www.palisadeinsectray.com for more information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Milestone 5-7 oz./acre or 2.5 ml/gal water Spring- up to early bud stage and fall rosette stage. Safe near a number of trees. Check label for more information. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 2-3gts./acre or 2.0-2.5 oz/gal water Spring- at 6-10" growth stage to pre -bud and in fall rosette stage. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Telar XP 2 oz/acre Apply from rosette to flower stage when all plants have emerged. Add non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- early bud stage and fall rosette stage. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Rangeland -Pasture Recommendations Chamomile Identification and Management Also Known as: scentless false mayweed, corn chamomile or false chamomile Scentless chamomile (Matricara perforata) is a native of Europe and was introduced to the United States and Canada as a seed contaminant. It has become naturalized in the U.S. and is now present in 37 states. Scentless chamomile is an annual, biennial, or short-lived perennial that reproduces by seed. The peak periods of germination are autumn and spring when moisture is available. When seedlings emerge a dense mat is produced which can quickly outcompete other native species. A mature scentless chamomile plant is between 6 and 20 inches tall. The leaves are alternate on the stem,1 to 2 inches long, finely divided and fernlike and odorless when crushed. The flowers are white in color, daisy -like and are solitary on each stem. A yellow central disk is surrounded by the white petals. Flowering begins in May and continues until a killing frost. Habitat for scentless chamomile includes hayfields, pastures, roadsides, stream banks and fence lines. It is most prevalent in disturbed soil. Scentless chamomile thrives in high soil moisture and prefers bright light. Mayweed chamomile (Anthemis cotula L.) is also known as stinking chamomile and dog fennel. This plant shares its growth characteristics, habitat requirements and mode of reproduction with Scentless and Corn chamomile. Mayweed chamomiles most distinguishing characteristic is a strong unpleasant odor when the foliage is crushed. Corn chamomile (Anthemis arvensis) is also known as mayweed and scentless chamomile. This plant is essentially identical to Scentless chamomile and Mayweed chamomile. It has been identified very rarely in Colorado. On the backside of this sheet are Scentless chamomile management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Department, Weed Division at (970) 304-6496 ext 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of the chamomiles. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to chamomile invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Frequent shallow tillage can help exhaust the seed bank in non- native areas. Mowing is not an effective tool for long term control as the plant will prostrate itself (limit growth height to below the mower blades). In the short-term, mowing will assist by reducing seed production. Hand pulling can be effective on small infestations. Biological - There is no biological control available for Scentless chamomile. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Optimum results occur when the plants have recently received moisture and are actively growing. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Escort XP 0.33 oz product/ac Apply when plant is in rosette to bolting growth stage. (Spring to early summer) May be applied near or under trees.. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Telar 0.33 oz product /ac Apply when plant is in rosette to bolting growth stage. (Spring to early summer) May be applied near or under trees.. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Milestone 7 oz/ac Apply when plant is in rosette growth stage. (Spring to early summer) May be applied near or under trees and to the waters edge. Add non-ionic surfactant @ 0.32 oz/gal water or 1 .t/100 :al water. ►u ye_ . _» �.. @m �( y� 40� � A a a �,. ' aty ;' //JJ f� b 1 �.. I- ( - Scentless Chamomile White Aster Photo's courtesy of: Ann Larson and Irene Shonle. Rangeland -Pasture Recommendations Cheatgrass Identification and Management Commonly referred to as cheatgrass, (Bromus tectorum) it is also known as downy brome, downy cheat and bronco grass. It is widely distributed throughout the United States and has been reported to be the dominant species on more than 100 million acres of the intermountain west. Cheatgrass is unique in that it occupies a dual role as a serious weed and important early season forage. In terms of volume of forage produced and extent of area covered it is the single most important spring forage. Cheatgrass can maintain dominance for many years on sites where native vegetation has been eliminated or severely reduced by grazing, cultivation or fire. Cheatgrass is a winter annual member of the grass (Poaceae) family. It reproduces by seed which germinates in the fall, over winters as a seedling and flowers in the spring. Seed can remain viable in the soil for 2 to 5 years. Cheatgrass can grow in almost any soil type and readily adapts to varying precipitation. Cheatgrass can be several inches to more than 18 inches tall. It has a nodding seed head with many finely hairy drooping spikelets. As it matures the seed heads and foliage often become reddish and then progress to a light tan. The mature seeds readily penetrate clothing and are frequently a problem in dog's ears and noses. Cheatgrass is found in both disturbed and undisturbed sites. The largest infestations are usually found in overgrazed range and pasture, abandoned fields, eroded sites and waste areas. The greatest competitive advantage following a fire goes to cheatgrass because the native shrubs and perennial grasses cannot recover as quickly allowing cheatgrass to establish a monoculture. On the backside of this sheet are cheatgrass management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of cheatgrass. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to cheatgrass invasion bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Fire, mowing, grazing, tillage, and inter -seeding competitive species have all shown promise in reducing cheatgrass populations. Long lasting control requires a combination of chemical, physical, vegetative suppression and proper livestock management. Biological -Biological control is limited. Rabbits and mice will feed extensively on the seedlings as will migratory grasshoppers. But there is no long-term biocontrol agent available. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Plateau 4 to 6 oz/acre Fall application as a pre -emergent prior to a hard freeze is optimum for control. Use a methylated seed oil surfactant (MSO) at 0.32 oz/gal water or 1 qt/100 gal water. The 12 oz rate of Plateau may cause injury to some cool season grasses. Panoramic 2 SL 4 — 8 Oz/Acre Apply pre- or post emergent in late summer or early fall. Use a MSO surfactant at 0.32 oz/gal or 1 gt/100ga1 water. The 12 oz rate of Panoramic 2SL may cause injury to some cool season grasses. Laramie 25DF 4 oz/acre An early post -emergent option. Must be activated with rainfall and applied when soil temps are cool. Moisture must arrive within 2-3 weeks of application. Add a non-ionic or MSO surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Glyphosate *Non -selective herbicide. 41% concentrate min. 16 to 24 oz/acre Apply in fall or early spring. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Use caution when applying near grasses or other desirable vegetation Rejuvra 5 oz/acre A pre -emergent chemical — it will not kill established growing plants. Can be tank mixed with Glyphosate, Panoramic 2SL or Plateau. Apply in August to March. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Prowl H2O Short Term 2-4 months: 2.1 quarts/acre Long Term 6-8 months: 4.2 quarts/acre A pre -emergent chemical —it will not kill established growing plants. Can be tank mixed with Glyphosate, Panoramic 2SL or Plateau. Spray solution may stain porous surfaces Length of control is dependent on weather conditions. Not labeled for use in range and pasture settings. Updated on: 07/2015 List B Species Colorado Department of Agriculture 305 Interlocken Pkwy Broomfield, CO 80021 (303)869-9030 weeds@state.co.us Key ID Points 1. Solitary flowers with four yellow sepals. 2. A herbaceous to woody vine climbing perennial. Rangeland, pasture, and riparian site recommendations Chinese clematis Identification and Management Identification and Impacts Chinese clematis (C/ematis onenta/is) is a herbaceous to woody vined perennial that is native to Eurasia. It is an escaped ornamental species that is a deciduous climber growing up to 12 feet. Solitary flowers have four yellow sepals (petal -like structures) that are often nodding. Each flower produces numerous feathery, long- tailed fruits which are conspicuous all winter. The plant flowers from August to September. Habitats for Chinese clematis include roadsides, riparian corridors and rocky slopes. It is sometimes found in open woods. Plants prefer sunny areas but have shown to be somewhat shade tolerant. Chinese clematis prefers well -drained soils. hinese clematis can cause death to young trees and brush. It outcompetes native shrubs and herbaceous species. Plants will completely cover; rock walls, trees, bushes and fences. The juice of freshly crushed leaves and stems have blister causing agents. The key to effective control of Chinese clematis is preventing the plants from going to seed. Pulling the woody stem prior to flowering can be an effective control. Chemical treatments are also effective when dealing with Chinese clematis. Details on the back of this sheet can help to create a management plan compatible with your site ecology. hinese clematis is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be either eradicated, contained, or suppressed depending on the local infestations. For more information visit www.colorado.gov/ag/weeds and click on the Noxious Weed Management Program. Or call the State Weed Coordinator at the Colorado Department of Agriculture, Conservation Services Division, 303-239-4100. Chinese clematis .311e11110,..tme. _.. _ _..,._ ._,,,.nw........_,._ Photos and Map © Colorado Department of Agriculture. 1 Clematis or/entails 2 Integrated Weed Management recommendations List B species VI • _ a--+ 7:5k, C Q) Er E,. l.% CD CC Q) fT3'' r V • � rt�r , -`� f,�--f" "� t "' �-�. "�� Mme, r,° �'5* ".��`�''� c }.. CULTURAL Cultural controls are possible in theory, but are very time consuming and expensive. Complete removal of any seedlings or newly established plants by continual hand pulling is also possible. Integrated Weed Management- (1) The most ( "4. 4b) � i i �' ♦•r � •-• • �` AO" t BIOLOGICAL here is no biological control available for Chinese clematis. Since biological control agents take years to research, develop and release, no releases are expected in the foreseeable future. For more information, contact the Palisade Insectary of the Colorado Department of effective contra/co method for dealing with 9 Chinesec%mans is preventing the p/antfromgoinq to seed. Pulling the plant from the ground, .by 1 i Agriculture at 970-464-7916. the woody stem, prior to the plant flowering is the (1) (10) • ,•11„ -_e`,- "', MECHANICAL Hand pull or dig when soil is moist. Make certain to pull all the roots and bag most effectiveLi) control. Chinese clematis a/so responds we// to chemical treatments _ �`~ p ` -s ' . i �S specimens carefully so as to not scatter seeds if flowering. HERBICIDES NOTE: The following are recommendations for herbicides that can be applied to range and pasturelands. Rates are approximate and based on equipment with an output of 30 gal/acre. Please read label for exact rates. Always read, understand, and follow the label directions. The herbicide label is the LAW! N cu aJ CO 9 O to ci -a i O D U 3 3 � ii- s r ,,44.r —rrr'„ r rr. Herbicide Rate Application Timing 2,4-D amine 2 qts. product/acre at 4.0 lb active ingredient/gallon of product + 0.25% v/v non-ionic surfactant Apply anytime when the plant if actively growing. Will damage neighboring brush species, if present. Imazapic (Plateau, Panoramic) 12 oz. product/acre + 1 qt./acre methylated seed oil Apply in the fall at flowering growth stage. Aminopyra lid (Milestone) 4 oz. product/acre + 0.25%v/v non-ionic surfactant Apply at flowering growth stage in the fall. tnA 44, CO 11 Additional herbicide recommendations for other species can be found at: goo.gl/TvWnv9 Topto bottom photos,©(Top 2 photos)StevensCounty(Washington State) NoxiousWeedControl Board;and bottom photo David Hallinan, Bannock County Weed Superintendent, Idaho Weed Awareness Campaign. Common Tansy Identification and Management common tansy (Tanacetum vulgare L.) is a perennial plant in the Asteraceae family, also known as golden buttons and garden tansy. Mature plants range from 1.5 to seven feet tall. The stem leaves are alternate and oblong. Leaves are deeply divided with four to ten pairs of leaflets. Glands appear on the leaf surface. The leaf mar- gins are dentate. From afar, leaves have a fern -like appearance and have a strong odor when crushed. Stems are stiff, up- right, ribbed often purplish -red to green in color, and hairless. Common tansy has only button -like perfect disc flowers; it lacks ray flowers. Yellow disc flowers are numerous and arranged as a flattened dense cluster at the terminal end of the stems. The outer ring of disc flowers are pistillate. Ovate shaped phyllaries that surround the head are arranged in series. Phyllary margins are lighter in color than the center. In Colorado, flowering typically starts in June lasting to September. Seeds are yellowish brown achenes with short, five -toothed crowns. One plant can produce up to about 50,000 seeds. Seeds is well adapted to cold environments with germination rates as high as 70% (Gucker 2009). Seed longevity is at least two years, and most seeds remain near the parent plant since they lack wind - dispersed structures (Gucker 2009). Roots are robust, often with rhizomes that can be woody, coiled and at least 51 inches below the soil surface (Gucker 2009). Rhizomatous spread occurs, but reproduction is primarily by seed (Gu- cker 2009). Common tansy is often confused with Achillea millefolium ('Moonshine' yarrow), which is a similar height, leaf structure, and has yellow terminal flowers. When common tansy is not in flower, it can also be confused with Conium macu- latum (poison hemlock) because of its leaf structure, the stiff ribbed stems and corymbiform flower head. In Colorado, common tansy is mostly found along the banks of irrigation ditches, streams, seeps and roads (EDD- MapS 2018). It is also found in residential areas as an ornamental, and occasionally on semi -arid rangelands and pastures (EDDMapS 2018). It survives cold, prefers wet environments and full sun but can tolerate partial shade (Gucker 2009). Common tansy is reported predominant- ly in the northern portion of the United States (EDDMapS 2018). common tansy T ncretum vedgare 201fi Stateside Distreal{en vi Calerab Ww eonaaly ttl Vaned eon Based an 2016 Quaronqusd and FOO/Aapi Field Surrey Data Arm ff... to rrrw...batA men ry•earrsrvwn.w ea. ewix.us; Leo,. by ...Ma ppvmanl genera., Ay COLOR•00 1-t6 ere yt slao.cn With adequate moisture common tansy can outcom- pete and displace native and desirable species; allelopathy may be a factor (Gucker 2009). When stands get robust, it can reduce ir- rigation water flow (Gucker 2009). Its seeds float, so water can be a vector and downstream riparian cor- ridors and irrigation chan- nels can become infested. It tends to be fairly aggressive and difficult to control. SEINet Herbarium of Hollis Koster Key ID Points 1. Yellow button - like composite flower heads that lack ray flowers 2. Fern -like pinnately divided alternate leaves, foul smell 3. Ribbed stiff tall stems 4. Dense woody - like root mass fl a f'1 co r-i- E a (0 E I� List B Integrated Weed Management Recommendations Effective integrated management means using a variety of eradication methods along with restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes. Restore degraded sites. Avoid soil disturbance. Prevent seed production and seeds from dispersing, e.g. on contaminated equipment. Rest sites until restored. Modify land use practices. Use methods appropriate for the site, other plants present and land uses. CULTURAL Common tansy prefers bare mineral soil, high light and few competitors to germinate, so maintain deep mulch and litter cover and select shade producing species. Since common tansy forms robust rhizomatous roots, select plants that will have equally or more competitive below ground root structures that includes an assemblage of shrubs, forbs, cool and warm season grasses, annuals and perrenials. Use locally adapted species that are ecologically appropriate for the site and ecoregion to improve competitiveness. Implement whole site restoration, where needed. Common tansy prefers frequent disturbance and flooding, so where possible, modify the hydrology and disturbance regimes until control is established, especially where dense colonies exist. Z . © University of Colorado BIOLOGICAL Common tansy is toxic to cattle, not recommended for horses, however confined domestic sheep and goats eat it during early flower (Gucker 2009). Targeted grazing can be effective, but opens the canopy for new seeding or shoot growth; repeat integrated entries with chemical (Gucker 2009). Non -targeted grazing should be light, with less than 60% defoliation to maintain competitiveness against common tansy (Gucker 2009). There are no biological control agents authorized in Colorado that would effectively control this species. MECHANICAL Because of common tansy's robust roots and prolific seed production, mechanical methods are best for residential areas and small infestations. Remove all root biomass or sever roots below the soil surface early in the season to reduce energy storage and before seed production. Mowing, chopping, hand -pulling, and deadheading leaves roots behind and stimulates flower production, requiring consecutive years of season -long treatments. Mowing disperses seeds and expands the infested area. Collect, bag, and dispose of or destroy all flowers; seeds could mature and germinate if left on the ground. Its large size may increase fire hazard. High intensity prescribed fire may top kill plants but leave roots mildly affected (Gucker 2009). Combine prescribed fire with other methods to improve treatment efficacy (Gucker 2009). © Dave and Karin Hanna, Techline News CHEMICAL NOTE: Herbicide recommendations to control common tansy in pastures and rangeland are found at: https:// goo.gl/TvWnv9. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Consult local turf and ornamental experts for herbicides appropriate for residential settings. Always read, understand, and follow the label directions. The herbicide label is the LAW! Colorado Department of Agriculture - Conservation Services 305 Interlocken Parkway Broomfield, CO 800zi (303) 869-9030 www.colorado.gov/ag/weeds Rangeland -Pasture Recommendations Teasel Identification and Management Teasel was introduced to North Americana from Europe in the 1700's, possibly as an ornamental but more likely the dried flowers were used in wool production. Today it is commonly used in horticultural plantings and dried flower arrangements. Teasel produces an abundance of seeds. A single plant can produce 2,000 seeds: 30-80% of those may germinate. Seeds remain viable for at least 2 years. Due to this the population has rapidly expanded in the last 30 years. Teasel is a biennial, which means it's a rosette for a minimum of one year; then sends up a tall, flowering stalk that dies after flowering. The rosette stage can vary according to the amount of time needed to acquire enough resources for the flowering to occur. During the rosette stage it develops a large taproot, reaching 2 feet long, and 1 inch in diameter at the crown. Teasel grows in open sunny habitats that range from wet to dry levels. It is found on roadsides, irrigation ditches, abandoned fields, pastures, waste places, the river bottom and forests. It is an aggressive competitor in disturbed areas. Teasel can displace native vegetation and decrease range quality. Teasel is not palatable and is usually ignored by livestock. Seeds can be spread down river in the water... Cut leaf teasel (dipsacaceae family) The plant can reach 4-10 feet tall. The flowers are white; below the flowers are several long, slender, stiff bracts that curve upward. Flowers from July to September. The leaves are divided into stalkless segments, the margins are bristley fringed. The leaves are also joined at the base, cupped to catch rain. The stems are prickly. Common teasel (dipsacaceae family) The plants can reach 3-6 feet tall Flowers are purple. Below the flowers are several long, slender, stiff bracts that curve upward. Flowers from July to September The leaves are lance shaped and up to 10 inches long. The leaves are also joined at the base, cupped to catch rain. The stems are prickly. Recommended management methods: Cultural - A late spring burn can be useful in controlling a dense area of teasel. Manual removal of rosettes in the old burn area will also help with control. Mechanical - In small areas the rosettes can be dug up, getting as much root as possible to prevent resprouting. The area needs to be monitored for regrowth. An alternative is to cut the stems just before flowering. The plant should not reflower, but instead die at the end of the growing season. Cut flowering stalks should be removed form the natural area if the flowers have opened, because seeds can mature on the stem even after cutting. Do not cut flowering stalk before full bud stage because the plant will usually send up new flowering stocks.. Cutting the flowering stems may need to be repeated for several years to get control. Mowing can help eliminate seed production by cutting down the stalks however the plants may re -grow from the undamaged root crown. Bio-Control - None at this time. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Curtail 2-3 qt per acre Spring- at 6-10" growth stage to pre -bud and in fall rosette stage. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Telar XP 1 to 2.6 oz/acre Apply pre -emergent or early post -emergent. Add surfactant according to Manufacturers direction. Requires continuous agitation. Apply within 24 hours of mixing to avoid degradation. No grazing restrictions if less than 11/3 oz applied. Escort XP 'h-1 oz per acre Apply pre -emergent or early post -emergent. Add surfactant according to Manufacturers direction. No grazing restrictions if less than 1 2/3 oz applied. Cimarron Max Part A'hoz & 2 pints Part B per acre Apply pre -emergent or early post -emergent. Add surfactant according to Manufacturers direction. Water concerns. Dairy grazing restrictions — 7 days. t Teasel infestation at end of season Teasel rosette Rangeland -Pasture Recommendations Dalmatian Toadflax Identification and Management Dalmatian toadflax (Linaria genistifolia ssp. dalmatica) is a non-native deep-rooted perennial that spreads by seeds and aggressive, creeping, horizontal roots (rhizomes). Dalmatian toadflax can grow 3 to 4 feet in height. The leaves are heart shaped to lanceolate with the base clasping around the stem. Both leaves and stems are waxy with a whitish or bluish cast. Flowers grow at the bases of the upper leaves. The flowers are snapdragon -like in appearance. They are yellow, with an orange throat and a straight to slightly curved spur. Dalmatian toadflax emerges as early as mid -March and typically begins flowering in late May. A mature Dalmatian toadflax plant may produce up to 500,000 seeds per year. These tiny, brown -black, winged seeds may lay dormant in the soil for up to 10 years and are easily distributed with the wind. The roots of Dalmatian toadflax can go 4 to 10 feet into the soil column with lateral roots extending up to 10 feet from the parent plant. The key to controlling Dalmatian toadflax is to eliminate seed production while reducing the plant's nutrient reserves in its root system through persistent, lon;-term mana;ement. Dalmatian toadflax was introduced as an ornamental plant in the late 1800's. Dalmatian toadflax thrives in drier climates, is a strong competitor in coarse soils, disturbed soils and sparsely vegetated sites. Once established, even sites in excellent condition will do little to stop its spread. Combining control methods for Dalmatian toadflax is imperative. Early detection is the most important. Maintain healthy pastures and rangeland while continually monitoring your property for infestations. Address any new infestations as soon as possible to limit their establishment and spread. This will save time and money. On the backside of this sheet are Dalmatian toadflax management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Dalmatian toadflax. Suggested species include: 'Hycrest' crested wheatgrass, 'Luna' pubescent wheatgrass, 'Critana' thickspike wheatgrass, 'Bozoisky' Russian wildrye and 'Sodar' streambank wheatgrass. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to Dalmatian toadflax invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Hand -pulling this plant can be useful especially for small infestations in sand and with wetter soils. Pulling must be repeated several times a year for up to 10 to 15 years to be sure the root stock and seed bank is depleted. Combining spring pulling with fall use of herbicides will further enhance control of this weed. Mowing tends to have little impact on reducing an infestation. Most mowed infestations continue to spread and become more established. Biological - Dalmatian toadflax is typically unpalatable to livestock. Several different biological control agents are available. Contact the Colorado Department of Agriculture Insectary in Palisade to learn more. Please call 970-464-7916 or send an e-mail to insectary@ag.state.co.us for detailed information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Telar XP Escort XP 2 to 2.5 oz/acre 1.5 to 2 oz/acre Spring application is early flower stage or fall. Apply with a high volume spray; at least 24 gallons/acre. Ensure thorough plant coverage. Use an MSO surfactant at 1.5 pints/acre. Fall treatments may provide the most consistant control. Can safely be used under some trees. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Spring- early bud stage and /or fall rosette stage. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Plateau OR Panoramic 2SL 10 oz/acre or 0.3 oz/gal Late fall application prior to a hard freeze for optimum control. Add a methylated seed oil surfactant (MSO) at 1.5 pints/acre. 12 oz rate may cause injury to some cool season grasses. Can safely be used under trees. Rangeland -Pasture Recommendations Dames Rocket Identification and Management Dames rocket (Hesperis matronalis) is an escaped ornamental commonly found in gardens, woodlands, ditches, roadsides and pastures. It is a Colorado B List Noxious weed. A non-native, naturalized plant, it is a showy member of the Mustard family with purple, pink or white flowers clustered on terminal stalks. Dames rocket occurs as a biennial or short lived perennial persisting for only a few growing seasons. Dames rocket grows 1.5 feet to over 3 feet tall with a shallow root system and numerous flower stalks. Leaves of dames rocket are oblong, with toothed margins, alternately arranged and decrease in size as they ascend the stem. Lower leaves usually have leaf stems while the upper leaves attach directly to the stem. Both stems and leaves are covered with short hairs. Flowers consist of 4 petals and develop in stages allowing the plant to produce flowers and seeds at the same time. Flowering occurs early in May -July. Large quantities of seeds are siliques (pods) and are the sole method seeds will germinate the following remain dormant for several years. Dames rocket has become a very and that success can be attributed to its "wildflower" seed mixes. It is against packets which contain dames rocket or weeds. Often confused with garden phlox, petals and alternate leaves and phlox opposite leaves. It also resembles mustard - Money plant (Lunaria gardens and escapes as a weed. coin -like seed capsules and leaves that join the leaf stalk. the growing season from found in long narrow of reproduction. Most season but some may successful invasive weed wide distribution in the law to purchase seed other ornamental noxious dames rocket has four has five petals and another non-native annua) which is grown in Lunaria has large, round are indented where they On the backside of this sheet are dames rocket management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Dame's Rocket. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Control methods include pulling or cutting flowering stalks to prevent seed production. When pulling mature plants, stems often break off and the taproot can resprout if not removed. The site will need to be monitored for several years as available seeds will continue to germinate. Flower heads should be bagged for landfill disposal or dried and burned where permissible. Biological -There is no recommended biological control at this time. Herbicides - Selectively applying a broadleaf herbicide according to label recommendations may also be an effective means of control. Herbicides, if used, should be applied to the rosettes in the late fall or early spring to avoid damage to adjacent vegetation. The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup UltraMax 1.6% solution or 2 oz/gallon water Apply at early plant growth. Use caution when applying near grasses or other desirable vegetation. Roundup will possibly kill surrounding vegetation. No residual soil activity. Non -selective herbicide. Will kill all vegetation. Outlaw (2,4-D and Dicamba) 1 to 2 pints/acre or 0.5 oz — 1.0 oz/gallon water Spring- at emergence of seedlings. Continue until frost. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Grazing restrictions. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- at or just after full -bloom and/or fall. DO NOT apply when outside temperatures will exceed 85 degrees. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Garden Replacement Options Native garden replacement plants for dames rocket include sidebells penstemon (Penstemon secundiflorus), Palmer penstemon (Penstemon palmeri), bee balm (Monarda fistulosa), columbine (Aquilegia caerulea), narrowleaf coneflower (Echinacea pallida), and woods rose (Rosa woodsii). Cultivated garden replacement plants for dames rocket include bleeding hearts (Dicentra spp.), meadow rue (Thalictrum aquilegifolium), bloody cranesbill (Geranium sanguineum), coral bells (Heuchera spp.) garden phlox (Phlox paniculata), and hollyhocks (Alcea rosea). Rangeland -Pasture Recommendations Diffuse knapweed Identification and Management Diffuse knapweed (Centaurea diffusa) is a non-native biennial forb that reproduces solely by seed. A biennial is a plant that completes its lifecycle within two years. During the first year of growth, diffuse knapweed appears as a rosette in spring or fall. During the second year in mid to late spring - the stem bolts, flowers, sets seed, and the plant dies. Once the plant dries up, it breaks off at ground level and becomes a tumbleweed allowing seeds to be dispersed over long distances. A prolific seed producer, diffuse knapweed can produce up to 18,000 seeds per plant. Therefore, the key to managing this plant is to prevent seed production. Diffuse knapweed can grow 1 to 3 feet tall, and is diffusely branched above ground. This gives the plant a ball -shaped appearance and tumble -weed mobility when broken off. Leaves are small, and are reduced in size near the flowering heads. Flowers are mostly white, sometimes purple, urn -shaped, and are located on each branch tip. Bracts that enclose the flowerheads are divided like teeth of a comb, and are tipped with a definite slender spine. Upon drying, the bracts become rough, rendering them injurious to the touch. You can expect to see flowers Seed set August. Diffuse disturbed, It may also be roadsides, a tough rapidly disturbed from July through August. usually occurs by mid- knapweed tends to invade overgrazed areas. found on rangeland, riparian areas, and trails. It is competitor on dry sites and invades and dominates areas. Once established, diffuse knapweed outcompetes and reduces the quantity of desirable native species such as perennial grasses. As a result, biodiversity and land values are reduced, and soil erosion is increased. On the backside of this sheet are diffuse knapweed management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496, ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of diffuse knapweed. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Mowing the above -ground portion of the plant, before seed set may be an effective way to reduce seed production. Mowings should be followed by a fall herbicide treatment. Pulling can be effective on smaller infestations but must be done repeatedly. Biological - Biological control agents, such as the seed head weevil (Larinus minutus) and the gall -forming fly (Urophora affinis), are two of several species that are effective at controlling large infestations. When used together, these insects provide fair to good control. Expect to wait at least 3 to 5 years for the agents to establish significant populations and achieve optimum management results. Biocontrol agents can be obtained at no charge from the Colorado Department of Agriculture's Insectary. Please call 970-464-7916 or go to www.palisadeinsectary.com for more information. Diffuse knapweed is more likely to be grazed by sheep. The plants must be green and succulent and the only forage available in order for sheep to graze it. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments 2,4-D Amine 1 qt./acre or 1 oz/gal water Spring/fall rosette — before flowering stalk lengthens. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 2 qts./acre or 2.0 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Clarity 1 qt./acre or 0.75 oz/gal water Spring rosette — before flowering stalk lengthens and/or late fall treatment of rosettes. DO NOT apply near or under trees and/or shrubs or when outside temperatures will exceed 85 degrees. Milestone 5 to 7 oz/ acre Apply to plants in the spring rosette stage and/or to dormant plants in the fall. If the plants are in the bud stage add 2,4-D at 32 oz/acre. It is permissible to treat seasonally dry wetlands and transitional areas between upland and lowland sites. DO NOT rotate to a broadleaf crop within 1 year of application. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Transline 1/3 to 1 1/3 pints /acre Apply after the majority of basal leaves have emerged up to early bud stage or fall regrowth. A number of trees are tolerant to the herbicide. Roses and leguminous trees can occasionally be affected with root uptake. No grazing or haying restrictions. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal. The seedhead gall fly, Urophora quadrifasciata, is one of many biocontrol agents available for release to control diffuse knapweed. Additional Diffuse Knapweed Non -Chemical Control Information Diffuse knapweed response to treatments may be impacted by environmental conditions and the type of treatment utilized. Grazing control: Diffuse knapweed seed production can be reduced when grazed during the bolting stage for 10 days, wait 14 days then graze for an additional 10 days. Although grazing diffuse knapweed can reduce seed production, grazing can also cause diffuse knapweed to become a short-lived perennial. When grazing is stopped, populations often return to their former levels. Pulling or Digging: Pulling or digging requires a commitment of at least 12 years to ensure that removal of new seedlings and re -growth is done before they reestablish. Years one to three of a pulling or digging program will involve intensive removal. During year's four to six, there should be a decrease in diffuse knapweed numbers and the work will be noticeably easier. Pulling or digging of diffuse knapweed is best done in the spring during the rosette or early bud stage, before the flowers appear. Hopefully, the soils will be moist to allow for easier removal. The roots can extend a few feet into the soil. It is important to pull or dig up the entire taproot. Otherwise, the diffuse knapweed may re -grow. Keep in mind that some workers may suffer from allergic reactions while touching diffuse knapweed and inhaling pollen. Mowing: Diffuse knapweed is persistent. Mowing leaves part of the plant untouched. This part of the plant will still produce flowers. The plant will just be shorter than the mower height and will act more like a perennial plant than a biennial plant. In some cases, diffuse knapweed densities may increase after a single mowing. Burning or Flaming: Normal fires are typically not long enough or hot enough to destroy diffuse knapweed seeds. A monitored controlled burn can potentially help control diffuse knapweed if the fire has adequate intensity. It is not easy to find good fuel circumstances to carry a continuous fire that will cause significant injury to the diffuse knapweed without hurting the beneficial vegetation occurring in the infestation. Diffuse knapweed is not very flammable and most areas do not contain enough fuel necessary for the fire. This results in low temperature fires with patchy and irregular burns. Even if the surface area of the plant is killed, diffuse knapweed can often re -grow from its root reserves. A propane -fueled weed burner can be utilized to quickly burn the foliage of young diffuse knapweed rosettes. The flame sears the plant, raises the temperature of the cells, this causes the cells to rupture. The diffuse knapweed plant will then dehydrate and expire within a few hours. Flaming is done on green plants; not on dead foliage. Plants can be seared at any time before flowering. Flaming can be useful in clearing small areas. Eurasian Watermilfoil Identification and Management List B Eurasian watermilfoil, Myriophyllum spicatum L., is a perennial highly inva- sive aquatic species. Its stems are about 4 mm long, entirely submerged, and range in color from pinkish white, green to brown. Stems can be as long as 9 feet. Leaves are whorled around a round stem, usually four total, but can have three to five leaves per whorl. Leaves are oppo- site; when dissected in a cross-section they are at right angles. Leaves are pin- nately compound, divided into linear leaf segments or leaflets. Leaflets are usually paired but can range from alternate to opposite; there are usually 12 or more leaflet pairs per leaf. The leaf margins are smooth; under high magnifications leaf margins may be finely toothed. Turions are absent. The overall leaf architecture gives it a feather -like appearance. Long slender roots are able to grow at leaf nodes. The plant roots on soil at the bottom of water bodies, and can survive free-floating. Pinkish flowers are whorled around the round stem as a spike. Male flowers have four petals and four sepals which are entire; both male and female flowers are on the same plant. Flowers are minute and sepals are reduced. Flow- ers are emergent and upright. Fruits are 4 ribbed or grooved and ultimately break apart into four, one -seeded nutlets. Seeds are viable; seed longevity is unknown. Stems and leaves senesce in fall. It forms very dense mats on the upper portions of water. Roots, delicate stems, leaves and leaflets easily fragment; the smallest of fragments easily disperse, root at the nodes, and colonize new sites. Autofrag- mentation occurs after each flowering period, which occurs twice: mid -June and mid -July. Vegetative reproduction is the main means of spread. Native to Northern Europe and Asia, it is cold -water adapted and over - winters in Colorado. It also has the advantage of green -up and growth in the spring earlier than native aquatic species, allowing it to outcompete natives for sun and space. It colonizes a wide spectrum of aquatic conditions: depths 1-30 ft., pH 5.4 to 11, alkaline water, disturbed water, nutrient rich, abundant recreation activi- ties, fresh and brackish water, slow and fast currents, lentic and lotic systems. It looks similar to and can hybridize with its native sister species, Myriophyllum sibiricum, which is wide spread through- out Colorado, from 4870 to 11,590 feet in elevation. Hybrids have intermediate number of leaflets. M. spicatum can also be confused with another native aquatic, M. verticil- latum. 2015 Quarter Quad Survey Eurasian Watemrilftoil aura wares. l rTu srxr oars oarennun u«naan nry*mrrn ,WM r-aram • Eurasian watermilfoil is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be eradicated; some populations may be contained or suppressed depending on state regula- tions. For state regulations described for each county, refer to the most recent Rule, or visit www.colorado. gov/ag/coweedcontacts for details. Myriophyllum sibiricum _ O5 Ang, Flora Nordica o lake George Key ID Points 1. 12 or more leaflet pairs are present. 2. Turions are absent. 3. Male flower bracts are entire. 4. Delicate stems, leaves and leaflets. r List B Integrated Weed Management Recommendations Effective integrated management means using a variety of eradication methods along with restoration, prevention of dispersal, and monitoring. Maintain healthy native waters. Prevent vegetative fragmentation and dispersal, such as on boats, swimming attire, equipment, etc. Infested water bodies can become very dangerous to humans, clog water infrastructure and equipment. Use methods appropriate for the site and with a full understanding of the species' biology. ,, '" A CULTURAL CONTROL METHODS Cultural methods, such as seeding, revegetation, fertilization, and irrigation are not applicable to aquatic environments such as lakes, rivers and streams. There are no known cultural control methods that would be effective against Eurasian watermilfoil, especially since this species hybridizes with native watermilfoil species. slieJl'Aehrhofi.'UniversiiY ofR \ Euhrychiopsis Iecot o BIOLOGICAL CONTROL METHODS There are known biological control agents for Eurasian watermilfoil that were N• - considered elsewhere in the USA, but issues preclude their use. For instance, grass carp, ' '''" ` -'' Ctenopharyngodon idella, is not host specific and feeds on native watermilfoils. The .�� ;�:' - fungus, Mycoleptodiscus terrestris, is difficult to obtain. A weevil, Euhrychiopsis lecotie, -rte, ..; `' is a native species that is not host specific and feeds on native watermilfoils. There are no known host specific biological control agents available or authorized in Colorado. For more information about biological control agents, visit the Colorado Department of Agriculture's Palisade Insectary website at at www.colorado.gov/ag/biocontrol. j = I.-) K3 .0 -A State Department of Ecology �IfI � c•, Okanagan iI . -... ,- � �� BasinWaterBoard MECHANICAL CONTROL METHODS Use of mechanical methods such as cutting, rotovation, hand pulling, raking, harvesting come with a high risk of spreading infestations since Eurasian watermilfoil fragments and roots easily. Such methods should be used only in closed systems, such as ponds, with no outlet, or in limited situations. If this method is used, all plant fragments need to be and dried. Equipment needs to be thoroughly cleaned and dried before its used in another water body. Physical water level manipulation that allow roots to freeze or plants to dry out for several weeks can be effective. Burn, compost or bag and throw away plants. a VI >sremoved S 2O- , CHEMICAL The following are recommendations for herbicides that can be applied to aquatic systems. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Always read, understand, and follow the label directions. The herbicide label is the LAW! L. 0 QANOTE: �j� O HERBICIDE RATE APPLICATION TIMING 2-4-D (Aqua-Kleen, Navigate, DMA 4 IVM; Use only aquatic approved products) Determined by herbicide concentration within the water column. Actively growing plants or manufactory specified recommendations. Fluridone (Sonar or Avast) Determined by herbicide concentration within the water column. Actively growing plants or manufactory specified recommendations. Rev. 11/16 Imazamox (Clearcast) Determined by herbicide concentration within the water column. Actively growing plants or manufactory specified recommendations. Triclopyr (Renovate 3) Determined by herbicide concentration within the water column. Actively growing plants or manufactory specified recommendations. Colorado Department of Agriculture - Conservation Services r c D A 305 Interlocken Parkway T �,. Broomfield, CO 80021 CO 4 (303) 869-903o r University do w '" www.colorado.gov/ag/weeds Rangeland -Pasture Recommendations Field Bindweed Identification and Management Field bindweed (Convolvulus arvensis) is a non-native deep-rooted perennial that reproduces from seed and creeping, horizontal roots (rhizomes). Field bindweed stems are prostrate (grows low to the ground) and twining, and grow up to 6 feet long. Leaves are distinguishable by their arrowhead shape. The flowers are bell or trumpet -shaped, white to pink in color, and are about 1 inch long. Field bindweed seeds can remain viable in the soil for up to 40 years. Field bindweed emerges from its root system in the spring. Flowering occurs from June to September and until the first fall frost. The number of seeds produced per plant ranges from 25 to 300 and seed production is variable depending on environmental conditions. Field bindweed is an extremely difficult noxious weed to control because, in part, of its root that may go 20 feet deep into the soil, and which repeatedly gives rise to numerous long rhizomes. Field bindweed is a problem throughout Colorado. It is one of the most competitive perennial weeds. It is widespread in cultivated areas, pastures, lawns, gardens, roadsides, and waste areas from 4,000 to 8,000 feet in elevation. To successfully manage field bindweed, containment and persistence in controlling existing stands are necessary to exhaust the root system and deplete the soil seed bank. This weed needs to be continually stressed, forcing it to exhaust root nutrient stores and eventually die. Of all control methods, prevention is most important. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. A healthy cover of desirable perennial plants will assist in discouraging field bindweed establishment. On the backside of this sheet are field bindweed management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Department, Weed Division at (970) 304-6496 ext 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of field bindweed. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to field bindweed invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Cutting, mowing, or pulling has a negligible effect unless the plants are cut below the surface in the early seedling stage. Well -established populations have a large seed bank in the soil that can remain viable for over 40 years. Biological - The bindweed gall mite, Aceria mahlerbae, has proven to be effective in reducing field bindweed infestations. Biocontrol agents can be obtained at no charge from the Colorado Department of Agriculture's Insectary. Please call 970- 464-7916 or go to www.palisadeinsectary.com for more information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Optimum results occur when the plants have recently received moisture and are actively growing. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- at or just after full -bloom and/or fall. DO NOT apply when outside temperatures will exceed 85 degrees. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. *Tordon 22K + 2,4-D Amine *this is a Restricted Use Pesticide* 1 qt./acre for each product or loz/gal water for each product Spring- at or just after full -bloom and/or fall. DO NOT apply when outside temperatures will exceed 85 degrees. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. *Roundup Ultra *Non -selective herbicide. Will kill all vegetation.* 4 —5 qts./acre or 4 —5 oz/gal water Apply at full -bloom and/or fall. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Use caution when applying near grasses or other desirable vegetation. Roundup will possibly kill surrounding vegetation. F:' Field bindweed-- infesti ig a baregrotin area `. Hairy Willow -Herb Identification and Management Hairy willow -herb is an Eurasian relative of our native fireweed and other willow -herbs that can invade and overwhelm moist areas and shorelines. It invades the same types of areas as purple loosestrife and can reduce wetland and shoreline habitat in much the same way. Although this plant was originally used as an ornamental, sometimes as an alternative to purple loosestrife, it is now illegal to buy or sell hairy willow -herb. Hairy willow -herb is a semi -aquatic perennial herb covered with soft hairs. It grows up to 6 feet tall. The stems are erect and branched. Flowering occurs June through August with showy pink -purple flowers that have white centers and four notched petals. The leaves are opposite, lance -shaped with toothed edges, and attach directly on the stem. Long, narrow seed pods split open to release numerous seeds with long white hairs. Each mature plant can produce up to 70,000 seeds. Seeds require a soil pH for 5.5 or higher for germination and are thought to remain viable for several years in the soil. Hairy willow -herb also spreads vegetatively by thick rhizomes (underground stems). It is tolerant of flooded soils. The rhizomes can grow submerged in water or water - saturated soils but can also spread into meadows and other upland areas. Found in low pastures, ditches, wetlands, stream banks, fields and meadows. It is often found growing in the same habitat as and can co -exist with purple loosestrife. Hairy willow -herb can out -grow purple loosestrife in the fall where most of its spread is seen, although the reverse is true in the spring. It prefers sunny, open spaces but is somewhat shade -tolerant once established. Its aggressive growth crowds out native wetland plants. Dense stands can impede water flow in waterways and wetlands. Infestations can also increase bank erosion while degrading wildlife habitat. On the backside of this sheet are hairy willow -herb management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 400- 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural/ Preventive - Prevent the establishment of new infestations by minimizing disturbance and seed dispersal. Mechanical - Hand removal of isolated individuals can be effective on a small scale. Handpulling should be conducted prior to seed set. It is important to remove the entire rootstalk of the plant to avoid regrowth from root fragments. Biological - There is no recommended biological control at this time. Herbicides - Harry Willow -Herb is found in very wet soils, so great care should be used when using herbicides so as to not harm other water plants. For early - season control of seedling and regrowth plants less than 2 feet tall, use of an aquatic -labeled herbicide is effective. Look for seedlings in late May or early June where adult plants have grown. The herbicides Clearcast, Renovate 3, and Milestone are effective on hairy willow -herb and are specific to broadleaved plants. Rodeo, Arsenal or Habitat are effective on mature plants at the pre - flowering stage. Use with caution, these products are non -selective herbicides and will kill all other vegetation that is sprayed. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application TiminWComments Clearcast (Imazamox) 64 to 128 oz./acre No restrictions on water usage for swimming, fishing, domestic use, ag sprays or livestock. Targets cattails as well. Apply at bud to mid -flower stage; typical treatment window is June/July. Add aquatic labeled MSO at 32 oz/100 gal. Rodeo (Glyphosate) 5% solution No restrictions on water usage for irrigation, recreation, or domestic purposes. Do not spray directly into open water. Renovate 3 (Triclopyr) 6 to 8 quarts/acre (192 oz -256 oz/acre) Or 5 to 7.6 oz/4 gallons Can be used in wetlands. Avoid spraying into open water. No restrictions on water usage for swimming, fishing and livestock. Apply at bud to mid -flower stage. Follow-up treatments will need to be made. Use an aquatic labeled non-ionic surfactant at 32 oz/100 gal. Arsenal or Habitat (Imazapyr) 16 to 48 oz/acre No restrictions on water usage for swimming, fishing and livestock. Minimize amount of over spray that enters the water. Apply at bud to mid -flower stage. Use an aquatic labeled non- ionic or MSO surfactant at 32 oz/100 gal. Caution: typically, a bare -ground product. Milestone (Aminopyralid) 7 oz/acre Or up to 14 oz if treating less than an acre Can be used in wetlands when they are dry, such as the fall. Use an aquatic labeled non-ionic or MSO surfactant at 32 oz/100 gal. Can also add 16 to 32 oz of 2,4-D or 32 to 64 oz of Garlon 3A/Renovate 3 for increased control. Rangeland -Pasture Recommendations Hoary Cress Identification and Management Hoary Cress (Cardaria draba) is a non-native perennial that spreads by seeds and aggressive, creeping, roots that vigorously produce new plants. Depending on conditions, hoary cress grows to a height of 1/2 to 2 feet tall. The first leaves emerge from a crown and are dull gray -green, oblong and often have a slightly wavy margin. Subsequent leaves are alternate, have short fine hairs and an irregularly toothed margin. Only the lower leaves have stems, others are stalk -less and clasp the plant stem with two ear -like lobes. Flowers are fragrant, numerous, small, white with 4 petals and grow in compact clusters. Hoary cress is a member of the Mustard family. In the fall seeds germinate and rosettes become established. It frequently flowers in April and May and again in the fall during optimum conditions. Seed production begins about one month later. Hoary cress produces up to 4800 seeds per plant. Seed viability is up to 3 years. However, the primary means of spread is the vertical and horizontal root system. Root fragments are capable of forming new plants. In one year, a single plant, without competition, can spread vegetatively to cover an area 12 feet in diameter and can produce 450 shoots. Hoary cress is also known as whitetop Rosette Hoary cress can be found in disturbed open sites, roadsides, ditches, riparian areas, grain and vegetable fields. It does especially well in irrigated crops such as alfalfa and sugar beets. Hoary cress grows well in most soil conditions, including alkaline soils. However, it does not tolerate shade. Hoary cress displaces native vegetation for wildlife and livestock forage. It also contains glucosinolates that are toxic to cattle. Prevention is the most cost reducing and time effective weed management strategy. Infrequent cultivation can actually facilitate the spread by dispersing root fragments. Consistent monitoring of your fields is an essential first step. On the backside of this sheet are hoary cress management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 400-3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of hoary cress. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to hoary cress invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Repeated tillage (every 10 to 14 days) can destroy colonies in 2 to 4 years. Combining mowing with herbicides will further enhance control of this weed. Apply herbicides in spring and/or fall, and then mow during the summer months. Mowing alone is not an effective control option. Biological No known biological control agents available at this time. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Escort XP lto 2 oz/acre or 1.3 ams to 3 gallons of water Apply from bud to early bloom stage or at fall rosette. Add a non -acidifying non-ionic or MSO surfactant @ 0.32oz/gal water or 1 t/100 al water. Telar XP 0.5 to 1 oz/acre or % of a am to 3 allons water Apply at prebloom to bloom or at fall rosette stage. Add a non - acidifying non-ionic or MSO surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Plateau 8 oz./acre or 0.25 oz/gal water Spring apply to rosette stage or at flowering or at fall rosette. Add a methylated seed oil surfactant (MSO) @ 0.32 oz/gal water or 1 qt/100 gal water. Rangeland -Pasture Recommendations Houndstongue Identification and Management Houndstongue (Cynaglossum officinale) is a non-native biennial or short- lived perennial that was introduced from Eurasia as a contaminant in cereal grain seed. Houndstongue is a very invasive plant that reproduces by seed only. The mature plant can grow to 1 to 4 feet tall. The first season it is a soft, hairy, low -growing rosette with leaves from 2 to 12 inches long. The basal leaves are lance -shaped, pointed and much tapered at the stem end. The name of the plant is derived from the size and shape of the rosette leaves which resemble a dog's tongue. The rosette bolts the second growth year producing one to several stout, erect stems with rough, hairy alternate leaves, becoming smaller and almost stem -less to clasping at the top. Flowers are small terminal clusters in the leaf axils, are dull reddish -purple with 5 fused petals on hairy coarse stems. Seeds are in 4 prickly nutlets that break apart. Each egg -shaped seed is covered by a hard multi -barbed husk, which clings to everything. Houndstongue seeds germinate from February to May and produce rosettes in the first year. During the second year it flowers and produces 600 to 2000 seeds per plant. Houndstongue can be a facultative biennial meaning the production of seeds can be postponed for one to several years until optimal conditions exist. It has the ability to survive a variety of soil conditions, hot, dry conditions and cold winter weather. It infests pastures, hay fields and disturbed sites. Houndstongue prospers in wetter grassland and is shade tolerant. It displaces native vegetation by capturing soil resources with its deep woody taproot. Houndstongue leaves contain pyrrolizidine which causes liver cells to stop reproducing. The green leaves are unpalatable with a distinct unpleasant odor. Consumption of houndstongue by grazing livestock is almost always lethal. Some animals may survive up to 6 months after ingesting the lethal amount. Horses are especially susceptible when confined to a small area that lacks desirable forage. Houndstongue may cause dermatitis in humans. Controlling houndstongue requires a multi -action approach including: limitation of seed dispersal, control current infestations, reduce soil disturbances, early detection, establishment of competitive grasses and use of proper grazing management. Below are houndstongue management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Limit access and recreation in areas of heavy infestations to prevent the spread of houndstongue seeds. Be aware of possible contamination in hay from infested areas. Plant competitive grasses at the proper time to ensure competition. Contact your local CSU Extension office or Natural Resources Conservation office for seed mix recommendations Mechanical - Digging, pulling and cutting is typically ineffective except for very small infestations. The rosettes must be severed below the crown of the taproot. Clipping or mowing of flowering stems will limit seed production but it is essential that all plant material and flowers be bagged and properly disposed of in a landfill. Houndstongue will not survive repeated tillage of young plants. Biological - There are two or three promising insect agents currently being evaluated. A flea beetle, Longitarsus quadriguttatus is host specific with a strong preference for houndstongue. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Apply in early spring to second year growth before bloom —to actively growing plants. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Escort 1 oz./acre or 1.3 grams to 3 gallons of water Spring- at 6-10" growth stage to pre -bud and in fall rosette stage. Add amethylated seed oil surfactant ( MSO) @ 0.32 oz/gal water or 1 qt/100 gal water. Plateau 8 oz/acre or 0.4 oz/gal water Apply to rosettes in the spring, summer or fall of 1St year. Add a methylated seed oil surfactant (MSO) @ 0.32oz/gal water or 1 qt/100 gal water. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Spring- summer or fall to rosette stage. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Jointed Goatgrass Identification and Management List B C� WA_State Noxius Weed ContraL&oard Jointed goatgrass, Aegilops cylindrica Host, is a winter annual, which greens up in late summer or fall and remains ac- tive through winter. The plants can grow as a single or multiple stems or tillers. Mature plants can reach 15 to 30 inches tall. Leaves are simple and alternate. Leaf blades are between 1/8 to 1/4 of an inch wide. Leaf blades have stiff short hairs on the leaf margins that are perpendicular to the blade and evenly spaced. Hairs can also be found on the auricles, ligules and leaf sheaths; these hairs are evenly spaced too. The cylindrical inflorescence is uniquely arranged into spikelets, which appear as zigzag joints. Each spikelet is cylindrically shaped and fit into the contour of the rachis. Spikelets are about 1/2 inch long. On top of each spikelet, the glumes will have long awns. Spikelets turn hard, change color from orange to red to purple, and shatter at the joint margins when mature. Each spikelet con - 2015 Quarter Quad Survey tains 1 to 3 viable seeds which develop quickly after pollination. Seeds germinate in fall and throughout cool months. Seeds remain viable for up to nine years. Often, spikelets will still be attached to the roots when plants are seedlings. In the seedling stage, Jointed goatgrass looks similar to winter wheat. The hairs on the jointed goatgrass will be the key diagnostic fea- ture; winter wheat does not have these hairs. Jointed goatgrass looks very similar to winter wheat in the younger stages of growth and hybridizes with winter wheat. The presence of the hairs on the leaf margin, sheath, ligules and auricles is key to identifying it apart from winter wheat. Mature hybrid spikelets closely resemble the zigzag structure of jointed goatgrass. A 2000 study found that hybrids do have a limited ability to produce viable seeds that can germinate and produce plants (Synder et al. 2006). The seeds of both species are also similar in terms of size and weight and so its assumed that hy- brid seeds would be similar. It has a lon- ger flowering season than winter wheat. Jointed goatgrass is native to the tem- perate regions of central Asia, Russia and the Mediterranean. Long growing seasons, precipitation and cool weather favor jointed goatgrass. It invades a wide variety of sites, including grasslands, wheat fields, fence rows, waste places, roadsides, alfalfa fields, and pastures. Winter wheat fields infested with jointed goatgrass cause long-term economic loss and wheat certification issues for the agricultural Joirrted Goatgrass An Y JepS d,rea 20,5 Lvrjerwau Feld Srvey Uala n0rdnrtn., Cd'oredo n s, -:*n IC," u, a>s.a.�,a e..wr+w�rcrh'tietwrw+e. ce.�tbcen.memsei el.p.re. industry for years. Jointed goatgrass is desig- nated as a "List B" species on the Colorado Noxious Weed Act. It is required to be eradicated; some popula- tions may be contained or suppressed depending on state regulations. For state regulations described for each county, refer to the most recent Rule, or visit www.colorado.gov/ag/co- weedcontacts for details. lir 4 Steve Dewey, UT State Univeristy ©Steve Dewey, UT State University iD Alejandro Perez Jones et al. 2010, Weed Science Jointed goatgrass (left), hybrid (middle), winter wheat (right) Key ID Points 1. Stiff short hairs evenly spaced on the margins of leaf blades. 2. Evenly spaced hairs are on auricles, leaf sheath and ligules. 3. Spikelets fit in a zig-zag pattern in a cylindrical shape. List B Integrated Weed Management Recommendations Effective integrated management means using a variety of eradication methods that also includes restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes and restore degraded sites. Avoid soil disturbance. As with most annuals, prevent seed production. Prevent seed from dispersing, such as on contaminated equipment. Rest sites until they are effectively restored. Control jointed goatgrass before March for the most effective results. Implementation and choice of method must consider the plant's life cycle. CULTURAL CONTROL METHODS Rotate crops for three seasons or longer before winter wheat is recultivated. Alter- nate crop selection is important: winter wheat/sunflower/fallow and winter wheat/ corn/fallow decrease jointed goatgrass seed density. Early spring crops may not be .-- effective as rotation crops. Band nitrogen fertilizer with desired species' seeds and f�-` irrigate; avoid broad nitrogen fertilizer applications. Select cultivars that result in R4 early fall or spring growth, taller plants, and high till capacity to outcompete jointed goatgrass. Increase seed rates and reduce row space of crops and seeded sites. Iso- late and harvest jointed goatgrass patches separately from other crops. ! l ,} y/ 1 1 BIOLOGICAL CONTROL METHODS The long awns and hard seeds make jointed goatgrass unpalatable to domestic livestock and can cause injury and may even be fatal. Grazing before flower production is believed to stimulate growth and plant density; properly timed grazing may increase the vigor of desired plants. Avoid high intensity -short duration and heavy grazing. There are no known biological control agents effective against jointed goatgrass g g g 1 g g authorized in Colorado. For more information about biological control agents, visit the Colorado Department of Agriculture's Palisade Insectary website at www.colorado.gov/ o O O-,- o O VI O = tz L.) .L C J, l> V1 ag/biocontrol. oSteve Dewey, UTState University ..1—".. ri =;� & �'3:: v. _: - „ .<-.z;„, ,. `. • • .r._ : ', .- , �,•1-,,,_ :''' YBrumfie,d -' MECHANICAL CONTROL METHODS Mowing and weed whacking should be done before flower production; these methods can induce more tiller and flower production and disperse seeds. Ensure that all methods do not cause spikelets to shatter and disperse seeds. Tilling may bring buried seeds back to the soil surface and could increase germination. Till "in the fall when primary dormancy is lost, but before secondary dormancy is imposed" (Fandrich and Mallory -Smith 2006). Mechanical methods have limited success. Prescribed fire can kill seeds if there is enough vegetation (> 7,000 Ibs/acre) on the soil surface to carry fire and increase heat generated. Consecutive fire applications will be needed. llJ `J n (-• OC 7 1 9— 0 • CHEMICAL CONTROL METHODS NOTE: The following are recommendations for herbicides that can be applied to pastures and rangeland. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Always read, understand, and follow the label directions. The herbicide label is the LAW! OHERBICIDE Rev. 11/16 RATE APPLICATION TIMING Glyphosate* (Roundup, and others) 16 oz./acre + 0.25% v/v non-ionic surfactant Apply before first spikelets begin to emerge from the boot; usually weeds are < 6" in height. (Late winter to early spring). *These herbicide products are non - selective and will kill any vegetation contacted. Imazapic + Glyphosate* (Journey) 6 oz./acre + 0.25% v/v non-ionic surfactant Apply before first spikelets begin to emerge from the boot; usually weeds are < 6" in height. (Late winter to early spring). Note: *These herbicide products are non - selective and will kill any vegetation contacted. Imazapic (Plateau, Panoramic) 6 oz./acre + 1% v/v methylated seed oil Apply pre-emergance in late summer or fall, or early postemergence in late winter before tiller. Aminocyclopyrachlor plus chlorsulfuron (Perspective)* 4.75-8 oz. product/acre + 0.25% v/v non-ionic surfactant Apply from the seedling to the bolting stage. IMPORTANT: Applications greater than 5.5 oz. product/acre exceeds the threshold for selectivity. DO NOT treat in the root zone of desirable trees and shrubs. Not for use on grazed or feed forage. *Product not permitted for use in the San Luis Valley. Colorado Department of Agriculture - Conservation Services C D A 305 Interlocken Parkway Broomfield, CO 80021 CO se'v (303) 869-903o r University do w www.colorado.gov/ag/weeds Knotweeds Identification and Management I apanese knotweed (Fallopia ja- ponica), giant knotweed (Fallopia sachalinensis), and their hybrid, Bo- hemian knotweed (Fallopia x bohe- mica) are bright green, bamboo -like perennial plants that grow 5-16 feet tall and spread through lateral root systems (rhizomes). Stems are hollow between nodes, and often reddish - brown and swollen at the nodes. The base of the stem above each joint is surrounded by a membranous sheath. Leaves are alternate and large. Japanese knotweed leaves are broadly ovate or spade -shaped with low, bump -like scabers on the under- side instead of hairs. Giant knotweed leaves are heart -shaped with long hairs underneath, and Bohemian plants typically have both leaf forms. The small, showy, greenish -white flowers develop on branched clus- ters and are present in late summer. Seeds are three -sided, black and shiny, and they develop in a papery - winged fruit. Japanese and giant knotweed are native to Asia and were introduced to the U.S. as ornamentals and for erosion control and landscape screening. All three species spread and resprout from roots or root fragments. They can be found grow- ing near water sources, in disturbed areas, and along rights -of -way. All three species can tolerate many environmental conditions such as full shade, high temperatures, salin- ity, and drought. Infestations can clog small waterways and displace native vegetation, increasing bank erosion and degrading wildlife habi- tat. Like other species in the genus Polygonum, the soil seed reserve is likely long-lived, and site monitoring should be carried out for at least ten years after the last flowering adult plants have been eliminated. The key to effective control of Japa- nese, giant, and Bohemian knotweed is to prevent establishment through proper land management. Maintain healthy riparian cooridors, wetlands and rights -of -way, and continually monitor your property for new infes- tations. The following page provides management recommendations. Knolweed in Colorado, 2018 (.Japanese, Bohemian, and Giant) PiCARMAk All three knotweeds are designated as "List A" species in the Colorado Noxious Weed Act. They are required to be eradi- cated wherever found in the state. For more information please visit: www.colorado.gov/ag/ weeds or call the State Weed Coordinator at the Colorado Department of Agriculture, Conserva- tion Services Division at 303-869-9030. Extension Key ID Points 1. Stems are hollow 2. Stem nodes are raised with a membranous sheath 3. Leaves are spade- to heart -shaped 4. Flowers are showy and form clusters in late summer fl O Z. cal a 0 VU 00 Cl � nn a DJ ?lIL-j v, r4 a n lo � b N* OO x pi) O i= co b List A Integrated Weed Management Recommendations E UV Preventing the spread of this plant in Colorado is crucial since it is known to exist only in a few locations. Monitoring your land for infestations, especially lands near water and downstream of known sites, can significantly aid in detecting the species early and eradicating it quickly. Herbicide timing is important in controlling this species. Follow timing recommendations closely. a -- 1 --'� Cultural be Heavy blackplastic 0o ECULTURAL CO O 0a Q V EBiocontrol CU �Q S O rE� -O uV X - _... .�s.---74,.. 0 control may possible with persistence. should entirely cover the infestation but be loose enough toallow growth underneath. Some plants will likely survive, so followup treatment and monitoring will be necessary. ; ' fr- ..;, _ ' a4�''= + �' . __ BIOLOGICAL agents are not included in the prescribed managementplans for List A species by the State; eradication is the management objective. No biocontrol agents for the knotweeds are available. Formore information on the use of biocontrol agents in Colorado, please contact the Palisade Insectary at 970-464-7916. S ', CiM , t ik i , , � 7� �.1 f !, f.. r r ,f. u '' � ,s "'!• .: 14 !� ', -,r-". '`' '' MECHANICAL NOT recommended as an eradication treatment due to theextensive and complex lateral root system. If plants are removedmechanically, all plant parts should be removed and then burnt or carefully baggedand disposed of in the landfill. Burning the plant as a is ineffective Qu=zi Li O O vi ' (: v1 U u CO Es V (�� Q �uU LL 12 CS -j ._. , �-� controlmethod and not recommended. CHEMICAL The following are recommendations for herbicides that can be applied along riparian and wetland areas to treat knotweeds. Rates are approximate and based on smaller infestation, spot -spraying techniques. Please read label for exact rates. Always read, understand, and follow the label directions. The herbicide label is the LAW! i , V_ = 0 O '--• HERBICIDE RATE APPLICATION TIMING Glyphosate (Rodeo*, AquaMaster*, are all safe for aquatic use) 2.5% to 3% solution (3.2 to 3.8 oz/gal water) + 0.32 oz/gal water non-ionic surfactant. OR 5 to 6 ml undiluted herbicide per individual stem for injec- tions Apply evenly over leaf surface "to wet," not so dripping occurs. Treat when plants are actively growing, pre -bud to flowering stage: June to July (at least half of foliage should still be green).** Use a calibrated injection gun to inject just below the third node from July to September. (gun can be bought online) (total treat - ment must not exceed 8 quarts per acre or approximately 1,000- 1,500 stems per acre for suggested rates). Q.Q � O QAquaNeat* O Q LL Triclopyr (Garton 3A for aquatic sites) OR Imazapyr*** (Habitat* OR Arsenal* for aquatic use) 1% solution (1.3 oz/gal water) + 0.32 oz/gat water non-ionic surfactant. Apply evenly over leaf surface "to wet," not so dripping occurs. Treat when plants are actively growing, pre -bud to flowering stage: June to July.** Injection method is not allowed for these herbicides. *All starred herbicide products are nonselective and will kill any vegetation contacted. **If leaves are above one's head, plants can be bent down to allow better foliar spray coverage. ***Imazapyr is NOT recommended for use in ornamental or turf settings. Colorado Department of Agriculture - Conservation Services C D A 305 Intertocken Parkway ' Broomfield, CO 80021 CO 11 • (303) 869-903o r University do Rev. 3/19 www.cotorado.gov/ag/weeds Rangeland -Pasture Recommendations Leafy spurge Identification and Management Leafy spurge (Euphorbia esula) is a non-native deep-rooted perennial that spreads by seeds and extensive, creeping roots. The roots can extend as deep as 30 feet into the soil and are extremely wide -spreading. The roots are brown and contain numerous pink buds that generally produce new shoots or roots. Leafy spurge can grow from 1 to 3 feet in height. The stems are smooth, pale green, and thickly clustered. Leaves are alternate, narrow, linear, and 1 to 4 inches long. The flowers are very small and yellowish -green. They are enclosed by very visible yellowish -green, heart -shaped bracts. The entire plant contains white, milky sap that exudes readily upon stem or leaf breakage. This sap can be damaging to eyes and sensitive skin. Leafy spurge is one of the earliest plants to emerge in the spring. Flower clusters develop 1 to 2 weeks after stem emergence which is from mid -April to late May. One large leafy spurge plant can produce up 130,000 seeds. Three - sided seed capsules explode when ripe and project the seeds up to 15 feet away from the parent plant. Leafy spurge has adapted to a wide variety of habitats in the state and is very competitive with other plant species. Where it becomes established in rangeland, pasture, and riparian sites, it crowds out all other vegetation. The competitive, rapidly growing, and extensive root system makes leafy spurge very difficult to manage. Develop a management plan that uses several control methods that are compatible with your site. The most effective method of control for leafy spurge is to prevent its establishment through proper land management. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. New infestations are much more easily controlled than established infestations. On the backside of this sheet are leafy spurge management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Seeding and maintaining aggressive grasses will help in competing with leafy spurge and slow its spread. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Proper grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to leafy spurge invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Mowing will reduce seed production if repeated every 2 to 4 weeks during the growing season, but will provide little long-term control. Biological - Both sheep and goats have been found to be effective grazers of leafy spurge. Grazing sheep can commence after spring regrowth reaches 2 to 6 inches tall, but before the flowering bract stage. Goats can graze spurge at any time. Do not overgraze. If leafy spurge has set seed, quarantine animals in a corral for 7 days before releasing them into a non -infested pasture. There are a variety of insects available for release on leafy spurge infestations. The flea beetles, Apthona nigriscutis, A. lacertosa, and A. cyparissiae, have been found to be effective on large infestations and when used in combination with grazing and/or herbicides. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- following appearance of true flowers and/or fall regrowth. Must treat 2x/year for 1-4 years. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Plateau 12 oz./acre or 0.4 oz/gal water Fall only treatment prior to hard freeze. Add a methylated seed oil surfactant (MSO) @ 0.32 oz/gal water or 1 qt/100 gal water. 2,4-D Amine 2-3 qts/acre or 2-3 oz/gal water Early spring and fall. Prevents seed formation only. Retreatment will be necessary. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Spring- following appearance of true flowers and/or fall regrowth. Must repeat annually for 3-4 years. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Sheep gruzin afy spurge. The llama protects the sheep from predators. Rangeland -Pasture Recommendations Common Mullein and Moth Mullein Identification and Management Common Mullein (Verbascum thapsus) and Moth Mullein (Verbascum blattaria) are non-native escaped ornamental biennials that have spread throughout the United States. These plants develop fibrous roots and a deep taproot. Both form a basal rosette in the first growth year and midway through the second season the plants "bolt" producing flower stalks. Common Mullein has rosette leaves which can be over a foot long. They have smooth edges with dense silvery hairs on both sides giving the leaves a woolly appearance. The flowering stalk is usually solitary and can be over 8 feet tall. Occasionally a few upright branches occur near the top. Leaves on the flowering stem are alternate and become smaller and more pointed close to the top of the plant. The flowers are sulfur -yellow, 5 lobed and united at the base. The stalk is densely packed with flowers attached directly to the stalk. A prolific seed producer, common mullein seeds can remain viable in the soil for 100 years. Common mullein is a List C noxious weed and is frequently found in pastures, roadsides and dry disturbed sites. Moth Mullein Rosette Lacking Hair Densely Haired Common Mullein Rosette Common Mullein Flower Moth Mullein Flower — Notice The Stem Moth Mullein leaves are dark green, are oblong tapering to a point with toothed edges, have prominent veins and lack the hairy covering. It has a shorter flowering stalk (2 to 5 feet) and supports flowers ranging from yellow to white with a purplish center. The flowers are each on a short stem and arranged in loose clusters at the top of the stalk. Moth mullein also is a prolific seed producer and the seeds remain viable for 90 years. It is a B list noxious weed and is presumably eradicated in Weld County. Its preferred habitat is similar to common mullein Below are management recommendations for both common and moth mullein. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of mullein. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Mowing or chopping is most effective when mullein plants are at the early flower stage but will have to be repeated throughout the season. Grubbing or digging the plants below the root crown level is effective in the rosette stage. Biological -There is no recommended Biological control at this time. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow the herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/ Comments Milestone 7 oz./acre or 1 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Tordon 22K + 2,4 D 1 — 1.5 pints/acre + 1 qt/acre Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Do not apply near or under trees or near water. Telar XP 1 — 3 oz/acre Apply from rosette to early bolt stage of growth. Add non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Roundup 2-3 qts/acre Or 2-3 oz/gal water Roundup is a non -selective herbicide — do not let spray drift to non -target species. Apply when plants are actively growing. Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Common Mullein Plant Moth Mullein Plant Rangeland -Pasture Recommendations Musk thistle Identification and Management Musk thistle (Carduus nutans) is a non-native biennial forb that reproduces solely by seed. A biennial is a plant that completes its lifecycle within two years. During the first year of growth, musk thistle appears as a rosette in spring or fall. During the second year in mid to late spring - the stem bolts, flowers, sets seed, and the plant dies. A prolific seed producer, musk thistle can produce up to 20,000 seeds per plant. Therefore, the key to managing this plant is to prevent seed production. Musk thistle can grow up to 6 feet tall. The leaves are spiny, waxy, and dark green in color with a light green midrib. The flowers are purple, large in size (1.5 to 3 inches in diameter), nodding, and terminal. The flowers are surrounded by numerous, lance -shaped, spine -tipped bracts. You can expect to see flowers from late May and June. Seed set usually occurs in June or July. Musk thistle tends to invade disturbed, overgrazed areas. Once a pasture is infested, the livestock carrying capacity for that area is significantly decreased. Musk thistle may also occur on rangeland, roadsides, ditches, riparian areas, and trails. On the backside of this sheet are musk thistle management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of musk thistle. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Mowing or chopping is most effective when musk thistle plants are at bud stage. Grubbing or digging the plants below the root crown level is effective as well. Do this while the plant is in the rosette stage. Biological - Livestock tend to avoid grazing on musk thistle, although horses and cattle have been known to eat the flowerheads. Biological control insects, such as the seed head weevil (Rhinocyllus conicus) and the crown weevil (Trichosirocalus horridus) are effective on large infestations. When used together, these insects provide fair to good control. Expect to wait at least 3 to 5 years for the insects to establish significant populations and achieve optimum management results. Insects can be obtained at no charge from the Colorado Department of Agriculture. Please call 970-464-7916 or go to www.palisadeinsectary.com for more information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow the herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application TiminWComments Milestone 3 to 5 oz/acre Apply to plants in the spring and early summer at rosette or early bolting stage or to the fall rosette. DO NOT rotate to a broadleaf crop within 1 year of application. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. 2,4-D Amine 1 qt./acre or 1 oz/gal water Spring/fall rosette — before flowering stalk lengthens. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 1.5 — 2 qts./acre or 1.5-2.0 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Clarity 1 qt./acre or 1 oz/ al water Spring rosette — before flowering stalk lengthens and/or late fall treatment of rosettes. DO NOT apply near or under trees and/or shrubs or when outside temperatures will exceed 85 degrees. k�s:M I� - a�':.t - ,q� ` 4� . � F — f Myrtle Spurge/Cypress Spurge Identification and Management Myrtle spurge (Euphorbia myrcinites) and cypress spurge (Euphorbia cyparissias) are non-native, escaped ornamental perennials that reproduce by seed and spread underground by the root system. The roots are brown and grow out from the central taproot in myrtle spurge and from lateral buds in cypress spurge, producing new shoots along their length. Myrtle spurge is low growing, with stems 12-18 inches long that lay close to the ground and are dense with thick, blue-green, fleshy leaves. Leaves are alternate, stiff, triangular, an inch or less, and spiral around the stem. Cypress spurge has smooth, erect stems with linear, narrow leaves up to 1.5 inches long. The flowers are very small and yellowish -green, enclosed by very visible yellowish -green bracts. Flower clusters develop from March to May. One large spurge plant can produce thousands of seeds from three -sided seed capsules that explode when ripe and project the seeds up to 15 feet away from the parent plant. These plants contain white, milky sap that exudes readily upon stem or leaf breakage. This sap can be very damaging to eyes and skin, causing severe irritation and burning. Myrtle spurge has adapted to rocky, sandy soils and xeric climates. Cypress spurge can infest woodlands, pastures and roadsides. Where they become established, they crowd out native vegetation. The competitive, rapidly growing, and extensive root system makes them difficult to kill completely, as new shoots can sprout from broken root fragments. Myrtle spurge and cypress spurge have been placed on the "A" List of the Colorado State noxious weed list. This means these plants must be eradicated from any and all properties in Colorado. Once eliminated, there may still be seed and rootstock in the ground that will propagate new plants. Therefore, spurge sites must be periodically monitored for new growth, and again treated. The most effective method to prevent escape is to remove garden specimens and encourage neighbors to do the same. Recommended Management Methods: Cultural - Seeding and maintaining aggressive grasses will help in competing with myrtle spurge and slow its spread. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Bare spots caused by disturbance or bad soil are prime habitat for weed infestations. Mechanical - Hand -pulling this plant is the easiest way to control small populations. Wear gloves whenever handling this plant, and monitor the area to spot and remove reoccurring shoots. Herbicides - Following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup 2-3 qts/acre or 2-3 oz/gal water Non -selective — do not let spray drift to non -target species. *Products containing 2,4-D or dicamba may also be effective. Alternatives - Sedums, hen and chicks, moss rose (Portulaca grandiflora), alyssum and phlox are safe alternatives, and many more choices can be found at these websites: CSU Cooperative Extension - Horticulture - "Xeriscaping: Ground Cover Plants" http:/ /www.ext.colostate.edu/pubs/garden/07230.htm1 Colorado Native Plant Society - "Suggested Native Plants For Use on the Front Range of Colorado" http://carbon.cudenver.edu/ shill/pdf/CoNPSPIantList.pdf CSU Cooperative Extension and Denver Botanic Gardens Plant Select® List http://www.ext.colostate.edu/psel/pslist.html Escaped Myrtle Spurge If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Oxeye Daisy Identification and Management List B Oxeye daisy (Leucanthemum vulgare) was introduced from Europe as a seed contaminant and as an ornamental. It is a rhizomatous, creeping, short-lived perennial that grows io inches to 2 feet tall. The basal and lower leaves are spoon - shaped, toothed, and with long petioles (leaf stem). The upper leaves are narrow, toothed, and clasp the stem. Flowers bloom between June and August. The flowers are to 3 inches in diameter, with 15 to 3o white ray flowers, and mostly solitary. The phyllaries beneath the flower head are green with a dark brown margin. One flower head can produce up to zoo seeds. Oxeye daisy spread vegetatively from roots, root fragments, or by seed. Seeds may be viable up to 38 years or more. Infestation sites needs to be monitored for at least io years after the last flowering plant has been eliminated and treatments repeated when necessary. Ornamental Shasta daisy (Leucantheum x superbum) is not an aggressive invader and looks similar to oxeye daisy, but it is 6 to 12 inches taller and has larger flowers. Oxeye daisy is an strong competitor. It forms dense stands that reduce native plant diversity. It degrades pastures and natural areas because cattle and wildlife avoid feeding on oxeye daisy. Heavy infestations may reduce nutrient cycling due to a shallow root system and create areas of bare soil, thus increasing soil erosion. Habitats for oxeye daisy included mountain meadows, grasslands, pastures, streams, gardens, waste grounds, railway, and roadsides. Oxeye daisy typically grows in high elevations, up to it000 feet in Colorado. The key to effective control of oxeye daisy is education and prevention. Oxeye daisy has been included in many different seed mixes, thus consumers should carefully read the label prior to planting so- called "native wildflower" mixes. Homeowners and land managers often overlook the impacts and the need to manage this weed because of the plant's attractiveness. Details on the back of this sheet can help to create a management plan compatible with your site ecology. 2013 Quarter Quad Survey Dxeye Daisy llrysiennemunm Jeucanlhemum Xr1317009rterqued &syn., arstrcaua9 and Murmana n coa..ea 16,500 9 iMessed AcOaf I1104r0.0n..i.0em IN9.cr0. 'own 1r 90 cm, 5,. Oo0«... Xr.080 saw `.400 rsw a-n.0e .sem,n..ua99.e?r [a,n 9.100..0,01,011009 000 0001 '-_ ep tn. cer0 .0 n.wr00..[ of Agri... Oxeye daisy is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be either eliminated, contained, or suppressed depending on the local infestations. For more information visit www.colorado. gov/ag/weeds and click on the Noxious Weed Management Program. Or call the State Weed Coordinator at the Colorado Department of Agriculture, Conservation Services Division, (303) 869-9030. Key ID Points 1.15-30 white ray flowers on flowerheads that are 1-3 inches in diameter. 2. Rosette and lower leaves are spoon - shaped and toothed. 3. Upper leaves on the stem are narrow, toothed, and clasp the stem. List B Integrated Weed Management Recommendations t:::li ) L Q Oxeye daisy has been included in many different seed mixes, thus consumers should carefully read the label prior to planting so-called "native wildflower" mixes. Repeated hand pulling can eliminate small infestations. Mowing or grazing by sheep or goats can be effective, in addition with a chemical approach. ., , f - • `' I, ., ,, , CULTURAL Generate awareness for this noxious weed. Carefully inspect "wildflower" seed mixes; do not plant mixes that include Leucanthemum vulgare. Avoid overgrazing, disturbance, and seed dispersal. Bare ground is prime habitat for weed invasions. Tall perennial grasses that shade oxeye daisy are good competitors. di il , y BIOLOGICAL Goats or sheep can be effective in the control of oxeye daisy. There are no insect biological controls available for oxeye daisy. For more information on biocontrols, contact the Colorado Department of Agriculture -Palisade Insectary at 970-464-7916. ' .`` „ �► � ..„,, •,� . r r rr • ;-� x� l� s a .lk!�, r *f MECHANICAL Repeated hand pulling or digging when soil is moist and infestations are small. Oxeye daisy is fairly shallow rooted; pull up as much of the root as possible. If removed during or after flowering, bag \J \J CUCL ' KCHEMICAL O' tIpdat o7,'?n ::1-C iii I N -/`i.-.-)� i Q V a J d: sJ .°; , �y``' � "" , f ' �� 44.t -� specimens carefully so as to not scatter seeds. Mowing before flowering or when flower buds are present can limit dispersal; do not mow during or after flowering. Tilling at 6 inches or deeper, and repeated shallowly as necessary, can control patches. ,,,o,,,,, SYNC c t Inlvel slit' _ �r _ -� 46-5 , �" �'�� XJ .r u �,c, s .4t,'=,' '_,h. s 4,14 ,,, �ti, . ,�� , - The table below includes recommendations for herbicides that can be applied to rangeland and pastures. 0.25% v/v non-ionic surfactant is equivalent to 0.32 oz/gal of water or i pthoo gal of water. Always read, understand, and follow the label directions. The herbicide label is the LAW! Herbicide Rate Application Timing Aminopyralid (Milestone) 4-6 oz./acre + 0.25% Optimum control when applied at the pre- v/v non-ionic surfactant flower bud growth stage. Metsulfuron (Escort XP) 1 oz. product/acre + 0.25%v/v non-ionic surfactant Surfactant is absolutely necessary. Optimum control when applied at flowering growth stage. 1 oz. product is the minimum eradication rate based on best treatment observed in several CSU Additional herbicide recommendations for this and other species can be found at: goo.gl/TvWnv9 Colorado Department of Agriculture - Conservation Services 41/4 C D A 305 Interlocken Parkway rd0 IIIPN Broomfield, CO 800rt CO 3-...7 (303) 869-9030 University www.colorado.goviagiweeds Rangeland -Pasture Recommendations Perennial Pepperweed Identification and Management Perennial pepperweed (Lepidium latifolium) is a non-native perennial plant that spreads by seeds and creeping underground roots that vigorously produce new plants. Seed production is prolific in heavily infested areas, estimated at 6 billion seeds per acre. The first basal leaves emerge to form a rosette. The leaves have long stems, are gray -green and can be 4 to 11 inches long and 1 to 3 inches wide. The rosettes produce plants of multiple, erect, semi -woody stems with smaller leaves that taper toward the base and have a prominent whitish mid -vein. The leaves become progressively smaller toward the top of the stems. Flowers are white with 4 spoon -shaped petals borne in dense clusters near the stem tips. Perennial pepperweed is a member of the Mustard family. Although an enormous amount of seed is produced, most new plants are shoots from the underground root mass. The roots enlarge at the soil line forming woody crowns. Each crown produces numerous erect stems that grow 2 to 4 feet tall; 6 feet can be achieved under optimal conditions. Root fragments as small as 2 inches can produce a new plant. Perennial pepperweed roots can remain dormant in the soil for several years. Flowering occurs from early summer to fall. The combination of seed production and root shoots enables perennial pepperweed to develop into dense monocultures that dis .lace native .lants and wildlife. A field of perennial pepperweed. Perennial pepperweed can be found in riparian areas and wetlands, adapts to disturbed areas, roadsides and ditches, hay meadows and cropland. Perennial pepperweed is often confused with hoary cress. Hoary cress stems are less than 3 feet tall and have stem leaves with lobed ears that clasp the stem. Perennial pepperweed has smaller leaves that taper toward the base and have a prominent whitish mid -vein. Management programs must include prevention, monitoring, and treatment of small satellite populations before plants develop extensive roots. Focus on containment of large infestations to prevent spread. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of perennial pepperweed. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to perennial pepperweed invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Mechanical control options are typically ineffective. With the exception of flooding, no non -chemical treatments have been proven effective. Biological No known biological control agents available at this time. Development of biological controls has been hampered by a number of closely related native plants, some on the rare and endangered species list. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments 2,4-D Amine 3 qt./acre or 2 oz/gal water for each product Spring- bolting to early bud stage and fall rosette stage. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Escort 1 oz/acre or 1.3 grams to 3 gallons of water Apply from bud to early bloom stage or at fall rosette. Add one teaspoon of household ammonia to 3 gallons of water plus the non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Telar 1 oz/acre or 3/4 of a gram to 3 gallons water Apply at prebloom to bloom or at fall rosette stage. Add a non - ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Round -Up 4 qts/acre or 2.5 oz/ al water Spring- at early bud stage and /or fall rosette stage. Add a non - ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Plateau 8 oz./acre or 0.25 oz/gal water Spring apply to rosette stage or at flowering or at fall rosette. 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N v", w m g .4e no ro p x o •• p' ° P- — y .a f° 7 Q 'g- $ w rc Cr t < o a R rt ]- r3 P. ►O O '710 3 a: r, tlq ,-*P7 0 ^ ^ • 'O—•qg m' " P.YG '4 n R g � 0- rt r�cm P7 ,o y c o n ry o o n ry P- ni 0 •i D' y! -- . Y � � ° rw• e O $ — `5'- 'R.T' O '5. W r0 ° Q• a .w2-.. C w '� '.°r 7' 6-o ', R ro O ' 8 y ro a- r H ° P- " o n ° ^ rt ° � n •�,�. to � O W �^ ❑❑ '°--' Fry Re w R . to � ° ° 9,. � rrt P+ �. w n ' ''v.. '.7 rt ° n rt ',5. ,. O w '.7 H "� y p, n R '� r'1 5 H O iD '.. �, N rl O VQ N cm C w p- o Cara'uus acantholdes 2 Integrated Weed Management recommendations List B Species CA CD •� C'd "I:j 5 CD V 4)— range 30 directions. • lipmEms4 vommil (11:1114 yia^;' CO imil, CA Integrated Weed Management: g(1) The key to managing Plumeless thistle is to prevent seed production. Dense Plumeless thistle stands can be neared by spot use of herbicide programs. Due to the unknown seed viability of plumeless thistle, monitoring upCA to 10 years, and repeating control methods may need to occurIts) for many years to completely eliminate an infestation. ��" v. ° t w- , - f;, .;,1.� -, _., �� '' _ r _ 44 ...•" • , ' f., ""` -'-.% -. .•...-i- CULTURAL Establishment of selected grasses can be an effective cultural control of Musk thistle. Contact your local Natural Resources Conservation Service for seed mix recommendations. Maintain healthy pastures and prevent bare spots caused by overgrazing. Bareground is prime habitat for weed invasions. ` .z »+ ,, ,, •,� - ' . -_ .. "= t '� ip BIOLOGICAL Biological control insects, such as the seed head weevil and the crown weevil are effective on large infestations. When used together, these insects provide fair to good control. These insects have been known to threaten native thistle populations. Contact the Insectary of Colorado Department of Agriculture to get complete information at 970-464- 7916. Or visit www.colorado.gov/ag/ csd. �.4'I,�r; CA (101) 5 r �I Liury con f - Any mechanical or physical method that ORMECHANICAL II - ti`. _ - .'= ,� 4.) � Cz Z severs the root below the soil surface will kill Plumeless thistle. Mowing or chopping is most effective when Plumeless thistle plants are at full bloom. Be sure to properly dispose of the flowering cut plants since seeds can mature and become viable after the plant has been cut down. HERBICIDES NOTE: pasturelands. Please read herbicide Photos Top XID Services, The following are recommendations Rates are approximate label for exact rates. label is the LAW' Herbicide and Always Rate for herbicides based on equipment read, understand, that can be applied to with an output of and follow the label Application Timing and gal/acre. The Old, 13 vs u to as > who p ra p O 3 3 a s Aminopyralid* (Milestone) 5 oz. product/acre + 0.25%v/v non-ionic surfactant Apply in spring rosette to early bolting growth stages or in fall to rosettes. Chlorsulfuron** (Telar) 1-2.6 oz. product/acre + 0.25%v/v non-ionic surfactant Apply in spring from rosette through very early flower growth stages. (Can prevent viable seed formation if applied no later than the first viable flowers begin to Clopyralid (Transline) 0.67-1.33 pints product/acre + 0.25% v/v non-ionic surfactant Apply to rosettes through flower bud stage in spring, or to fall rosettes. Note: *Product not permitted for use in the San Luis Valley. **This herbicide has residual soil activity that will affect all broadleaf seedlings germinating after application has occurred. Additional herbicide recommendations for this and other species can be found at: goo.gl/TvWnv9 to bottom © Loke T. Kok, Virginia Polytechnic Institute and State University, Bugwood.org; Richard Inc., Bugwood.org; and Kelly Uhing, Colorado Department of Agriculture. Rangeland -Pasture Recommendations Puncturevine Identification and Management Puncturevine (Tribulus terrestris L) is also known as goatheads, bullheads, Texas sandbur or Texas tacks. Puncturevine is native to warm temperate and tropical regions of southern Europe, Asia, throughout Africa and in northern Australia. A member of the Caltrop Family, it is a tap rooted herbaceous perennial plant that grows as a summer annual in colder climates. It can also thrive in desert climates and poor soil conditions. A spreading, mat forming plant it can extend up to 10 feet from the central tap root, often forming numerous branches. The leaves are hairy and pinnately compound with 4 to 8 pairs of leaflets. The flowers produced in the leaf axils are lemon yellow with 5 petals. The plants emerge as early as May and continue until frost. The yellow flowers appear as quickly as 3 weeks after the seedlings emerge and are followed by viable fruit and seeds 1 to 2 weeks later. Each fruit consists of 4 to 5 seed sections which at maturity break into hard nutlets with 2 sharp spines. One plant is capable of producing over 500,000 fruits. On average there are 4 seeds per fruit which results in over 1 million seeds per plant. The seeds are viable in the soil for 3 to 7 years. Puncturevine is a problem throughout Colorado. It is a nuisance weed found in disturbed sites, along roadways, in overgrazed pastures, in lawns, gardens and waste areas. To successfully manage puncturevine, persistence in controlling emerging plants is necessary in order to deplete the soil seed bank. Of all control methods, prevention is most important. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. A healthy cover of desirable perennial plants will assist in discouraging puncturevine establishment. On the backside of this sheet are puncturevine management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Department, Weed Division at (970) 304-6496 ext 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of puncturevine. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to punturevine invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Cutting or pulling puncturevine at the root crown can effectively eliminate the plant. However constant monitoring is necessary as this is a very rapidly growing plant. Well -established populations have a large seed bank in the soil that can remain viable for 3 to 7 years. Biological - Two weevil biocontrol agents have been introduced in the U.S. A seed weevil (Microlarinus lareynii) and a stem weevil (Microlarinus lypriformis) when used in combination can greatly assist in the control of punturevine. The weevils can be obtained from the Colorado Department of Agriculture's Insectary. Please call 970-464- 7916 or go to www.palisadeinsectary.com for more information. Herbicides - The following are recommendations for herbicides that can be used in the treatment of puncturevine. Optimum results occur when the plants have recently received moisture and are actively growing. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Glyphosate at 41% concentrate 2% solution or 2 and 2/3 oz/gallon water Apply at early plant growth. Use caution when applying near grasses or other desirable vegetation. Roundup will possibly kill surrounding vegetation. No residual soil activity. Non -selective herbicide. Will kill all vegetation. Outlaw (2,4-D and Dicamba) 1 to 2 pints/acre or 0.5 oz — 1.0 oz/gallon water Spring- at emergence of seedlings. Continue until frost. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Grazing restrictions. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Telar XP 1 to 2.5 oz/acre Apply pre -emergent or early post -emergent. Add surfactant according to Manufacturers direction. Requires continuous agitation. Apply within 24 hours of mixing to avoid degradation. No grazing restrictions if less than 11/3 oz applied. Laramie 25DF 4 oz/acre An early post -emergent option. Must be activated with rainfall and applied when soil temps are cool. Moisture must arrive within 2-3 weeks of application. Add a non-ionic or MSO surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Pendulum AquaCap OR Prowl H2O Short Term 2-4 months: 2.1 quarts/acre Long Term 6-8 months: 4.2 quarts/acre A pre -emergent chemical —it will not kill established growing plants. Spray solution may stain porous surfaces Length of control is dependent on weather conditions. Not labeled for use in range and pasture settings. Purple Loosestrife Identification and Management Purple loosestrife (Lythrum salicaria) is a non-native, tap -rooted, perennial forb. It is native to Europe and was introduced to North America as an ornamental plant for gardens and has escaped into natural areas such as streambanks and shallow ponds. Purple loosestrife reproduces primarily by seed. A single, mature plant can produce up to 3 million seeds per year. The seeds can remain viable in the soil for 5 to 20 years. Pieces of roots or stems also can produce new plants. Purple loosestrife produces multiple 4 -sided stems that can grow 2 to 8 feet tall. Leaves are 2 to 5 inches long, lance -shaped and whorled on the stems. Flowers are tightly grouped in long, vertical heads; they bloom from the bottom up on heads. They are reddish -purple in color, about 1 inch long, and have 5 to 7 petals. Flowers appear from late June through September. Flowering plant infesting Soui Platte riverbank Purple loosestrife can be found along riverbanks, ditches, and wet meadows throughout the state. Infestations rapidly replace native vegetation, can impede water flow in canals and ditches, and have little wildlife habitat value. If purple loosestrife is left unchecked, the wetland eventually becomes a monoculture of loosestrife. The key to effective control of purple loosestrife is early detection when infestations are small. It is fairly easy to control small numbers of loosestrife plants when the seed bank in the soil is small. Eradicating large populations is much more difficult. Biological control should primarily be considered when populations of loosestrife have become large or are inaccessible. Small loosestrife infestations should be eradicated by hand -pulling or herbicide application. On the backside of this sheet are purple loosestrife management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304- 6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural/ Preventive - Prevent the establishment of new infestations by minimizing disturbance and seed dispersal. Mechanical - Hand removal of isolated individuals can be effective on a small scale. Handpulling should be conducted prior to seed set. It is important to remove the entire rootstalk of the plant to avoid regrowth from root fragments. Biological - Two species of beetles (Galerucella calmariensis and Galerucella pucilla) are proving to be effective in the control of purple loosestrife. Insects should be used on large infestations only, and releases of at least 500 beetles per infested site are needed. Insects can be obtained at no charge from the Colorado Department of Agriculture's Insectary. Please call 970-464-7916 or go to www.palisadeinsectary.com for more information. Herbicides - Purple loosestrife is found in very wet soils, so great care should be used when using herbicides so as to not harm other water plants. For early - season control of seedling and regrowth plants less than 1 to 2 feet tall, use of an aquatic -labeled 2,4-D is effective. Look for seedlings in late May or early June where adult plants have grown. The herbicide Garlon 3A is effective on purple loosestrife and like 2,4-D is specific to broadleaved plants. Rodeo is effective on mature plants at the pre -flowering to post -bloom stages. Use with caution, this is a non -selective herbicide and will kill all other vegetation that is sprayed. Be sure to clip and properly dispose of flowerheads before applying Rodeo. This will assist in the prevention of seed spread. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Aquatic 2,4-D Amine 1.0 to 2 qts./acre or 1.0 to 2.0 oz/gal water Early spring — prevents seed formation only. Retreatment will be necessary. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Rodeo 1.0 to 2.0 qts./acre or 1.0 to 2.0 oz/gal water Summer — during flowering stage. Cut and properly dispose of flowerheads before applying Rodeo. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Weed crew clipping and disposing of flowerheads before applying herbicide to a mature purple loosestrife plant. RELEASE OF ACERIA MALHERBAE (THE BINDWEED MITE) ON FIELD BINDWEED Select an area of healthy, lush bindweed. Those patches where the vines are growing up on to each other are ideal. You are looking for the tender growing tip (tips) on green stems with large leaves. For gall placement, take about three inches of a galled stem — a gall in a curled leaf or any odd looking growth — and twist the growing tip of your bindweed around the gall. Keep twisting the two together until you reach the soil level where you can tuck the whole thing under the plant. This is done just to keep the two tightly together. You want the microscopic mite to have no place to go as the gall dries out other than to the new leaf in your patch. You should begin to see the folding and curling of new galls in about 10 days. After a month, the galls are mature enough to run a mower across them if mowing is possible. The wind will also spread the mites as time goes by. You can also collect from your own mite patch as galls form and continue to transfer the mites to new locations. Managing Field Bindweed with the Bindweed Mite Field bindweed (Convovulus arvensis) is one of the most widespread and difficult to manage weeds throughout the United States. The vining plant produces an extensive root system which stores enough nutrients to fuel growth. The plant thrives in the arid western states and will grow on many sites where other plants cannot exist. Control with herbicides is difficult, but the weed can be successfully managed on some sites with fall applications of glyphosate containing herbicides. Control is localities with desirable vegetation, inaccessible areas, and in many agricultural systems is nearly impossible with herbicides. The bindweed mite, Aceria malherbae, is a microscopic mite imported from southern Europe as a biological control agent for field bindweed. The bindweed mite feeds only on field bindweed and closely related wild morning glories. It does not damage other plant species, and it requires bindweed to survive. Bindweed mite feeding causes the formation of gall -like growth of plant leaves. Leaves of infested plants are thickened, and have a "fuzzy" texture. In heavily infested plants, the shoots are misshapen and growth is severely stunted. Recently infested plants have newly emerged leaves that appear folded. The thickened texture and fuzzy appearance are good diagnostic characteristics to identify bindweed mite presence. Bindweed mites have the potential to aid in suppression or control of field bindweed in many arid regions, and under many plant management regimes. It can be useful in wildland settings, pastures, roadsides, disturbed areas, landscape plantings, and other areas. The best results will be obtained with active management of the mite population, especially by mowing of the bindweed which moves the mites around and stimulates new growth for the mites to feed on. Bindweed mites survive better in drier settings. Their impact in sprinkler irrigated settings, especially lawns, will probably be less than in non - irrigated sites. Bindweed mites spend the winter on underground buds on bindweed rhizomes. They have successfully over wintered in Canada and Montana. Excessive moisture appears to be the environmental factor that limits its establishment. Mites migrate to underground buds during drought when plant tops die down. Bindweed mites are available from collections of infested plant material. Several mite nursery sites have been established in western Colorado and Weld County. Distribution of bindweed mites is coordinated by Weld County Weed Division and the Colorado Department of Agriculture in Palisade. It is best to release mites in the cooler part of the day to maximize their survival. The infested plants should be placed in direct contact with the bindweed that is to be infested. It should be either tucked under the infested plants or twisted up with the bindweed vines to keep it in place and from blowing away. Newly infested galls (folded leaves) should be apparent within a week or so. Do not disturb the release site for a few weeks. After this time, mow the area to distribute the mites and stimulate new bindweed growth. When galls are easily found, they can be harvested and spread to new areas to help distribute mites. Success in managing field bindweed with bindweed mites is highly dependent on your expectations. If you expect the bindweed to disappear shortly after releasing the mites, you will be disappointed. The initial impact will be a reduction of growth and limited flowering and seed production of infested plants. It will take a year or more for infested plants to die. Control of bindweed over a large area can take years. Be patient, mow, move mites manually and you will increase your chances of success. Rangeland -Pasture Recommendations Russian knapweed Identification and Management Russian knapweed (Centaurea repens) is a non-native deep-rooted perennial that spreads by seeds and aggressive, creeping, horizontal roots (rhizomes). The roots are black with a scaly appearance. Russian knapweed can grow up to 3 feet in height. The stems and leaves are covered with short, stiff hairs. The flowers are urn -shaped, pink to purple in color, and are solitary at the tips of the upper branches. Russian knapweed can be distinguished from other knapweeds by the pointed papery tips of the bracts that surround the flowers. Russian knapweed emerges from its root system in early spring after soil temperatures remain above freezing. It produces flowers from June to August and sets seed in later summer to early fall. Russian knapweed reproduces primarily from its root system. Buds on the horizontal roots can form adventitious shoots that may grow to be independent plants. Russian knapweed can be managed with herbicides or insects, but long-term control must include planting competitive plant species to occupy bare ground once infested by the weed. Russian knapweed is allelopathic, which means it contains a toxic substance that inhibits the growth of competing plants. This weed may also be toxic to horses resulting in serious injury or possibly death of the animal. Russian knapweed displaces native vegetation and reduces forage values on range and pasturelands. It can infest many land types, from roadsides, ditch banks, riparian zones, pastures, irrigated cropland, clearcuts, and cropland. The most effective method of control for Russian knapweed is to prevent its establishment through proper land management. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. On the backside of this sheet are Russian knapweed management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Seeding and maintaining aggressive grasses will help in competing with Russian knapweed and slow its spread. Species such as thickspike wheatgrass and streambank wheatgrass have proven to be effective competition against Russian knapweed infestations. Proper grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to Russian knapweed invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Cutting several times before the plants bolt stresses Russian knapweed plants and forces them to use nutrient reserves stored in the root system. Combining mowing with herbicides will further enhance control of this weed. Mow repeatedly during the summer then apply a herbicide in the fall. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. A combination of seeding competitive grasses and the application of herbicides have proven to be effective in managing Russian knapweed. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/ Comments Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- bud to early flower stage and/or fall rosette stage. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 3 qts./acre or 3.0 oz/gal water Spring- bud to early flower stage and/or fall rosette stage. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Spring- bud to early flower stage and/or fall rosette. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Milestone 4 to 6 oz/ acre Apply to plants in the spring and summer flowering stage and/or to dormant plants permissible to treat seasonally dry wetlands areas between upland and lowland sites. broadleaf crop within 1 year of application. surfactant @ 0.32oz/gal water or 1 qt/100 that are in the bud to in the fall. It is and transitional DO NOT rotate to a Add a non-ionic gal water. e .: +fir m , Rangeland -Pasture Recommendations Russian Olive / Elaeagnus angustifolia Identification and Management Russian olive is a non-native deciduous shrub or small tree that can reach 10-25 feet tall. The foliage has an overall silvery appearance. The leaves are arranged alternately, 2-3 inches long and narrow with smooth margins. The upper surface is gray - green while the lower surface and leaf stalks are silvery -gray. The bark is dark reddish - brown in color and usually has 1-2 inch thorns. The twigs also have a silver-gray appearance. The flowers appear between May and June, they are yellow, bell shaped and arranged in clusters. The tree starts to produce fruit at 3 year of age. The fruit is shaped like a small olive and contain a single seed. The seeds are viable for up to 3 years. The Russian olive spreads mostly through seeds but can re -grow from injury. The Russian olive is very adaptable. The seedlings are tolerant of shade and drought conditions. It can thrive in a variety of soil types, including bare mineral substrates. They can grow between sea level and 8,000 feet. The Russian olive originated in southern Europe, central Asia and eastern Asia. They were introduced to the United States in the late nineteenth century as an ornamental shrub or small tree. It has been used extensively in wind breaks and stream bank stabilization. Russian olive will out -compete native vegetation, changes soil characteristics and taxes water reserves. It rapidly takes over lowland fields and often dries up irrigation ditches. Although the fruit is often eaten by birds, studies show there is a greater number of birds in an area dominated by native Cottonwoods. The long thorns the plant produces can make a stand of Russian olive impassable to cows and wildlife. This results in fewer native plants and less animal diversity. The most effective method of control for Russian olive is to prevent its establishment through proper land management. Monitor susceptible areas for new infestations. On the backside of this sheet are Russian olive management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304- 6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - After managing Russian olive infestations, other vegetation must be established to prevent re -invasion. Competitive grasses and planted cottonwood cuttings have proven to be effective at reducing the chances of re -invasion. Contact your local CSU Extension office or Natural Resources Conservation Service office for proper seed mix recommendations. Mechanical - In areas where woody native plants are present and their continued existence is desired, or for large stands of Russian olive it may be necessary to cut and treat the stumps with a herbicide. This is referred to as the cut -stump treatment. Cuts should be made within 2 inches of the grounds surface, immediately followed by a herbicide application to the cut stems. The girdling method involves making shallow, overlapping cuts into the bark around the trunk base. Use a hatchet or chainsaw to make these cuts. Then lightly spray the entire cut surface with herbicide. Herbicides - For large stands of Russian olive that would essentially be monotypic, foliar applications of herbicides are effective. Late summer/early fall are optimum treatment times using this method. This is recommended for areas that have little to no desirable shrubs and trees. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup Pro or Max or Ultra 50-100% concentrate Cut -Stump treatment. Ensure coverage of the entire cambium. Cut trees and re -sprouts close to the soil surface. Apply immediately to the freshly cut surface. Applications should be made during periods of active growth and full leaf expansion. Non -Selective. Remedy Ultra Actively growing rate: Cut -Stump treatment. Do not apply directly to water, or to areas where surface water is present. No grazing restrictions for livestock other than lactating dairy animals. Best time to treat is when actively growing. Established grasses are tolerant. 14 -day haying restriction. 3 -day slaughter withdrawal. For root suckering trees, also spray the ground under the plant to control root suckers not yet visible. There is an option for Basal Bark treatment. Read the label. Selective. 1.5-2% solution in oil Or Dormant rate: 3-6 qts in oil to make 100 gallons total. Pathfinder II Ready- to -use Cut -Stump or Basal Bark treatment. Do not apply directly to water, or to areas where surface water is present. Seasonally dry wetland areas ok. No grazing restrictions for livestock other than lactating dairy animals. 14 -day haying restriction. No more than 2.7 gallons/acre/year may be applied. Selective. Arsenal 8-12 oz/gal water (plus 0.25% surfactant) Cut -Stump treatment. Thoroughly wet the cambium area of the trunk. Frill or Gridle treatment. Using a hatchet expose at least 2 growth rings and apply a 25-100% solution to the cup. Addition of a surfactant will improve control for both treatments. Either non-ionic or methylated seed oil may be used. Re-entry interval of 48 hours. Non -Selective. Remedy Ultra 32 to 64 oz/acre In late summer or during drought use the higher rate. 2,4-D or Tordon 22K can be added to the mix. Foliar Treatment. Do not apply directly to water, or to areas where surface water is present. No grazing restrictions for livestock other than lactating dairy animals. Best time to treat is when actively growing and fully leafed out. Established grasses are tolerant. 14 -day haying restriction. 3 -day slaughter withdrawal. Use 10 to 100 gallons/acre. Use higher spray volumes to ensure adequate coverage with increased depth and density of foliage. Thoroughly wet all leaves, stems, and root collars. Add a non-ionic surfactant at 32 oz/100 gallons. Selective. Arsenal 0.6 to 6 oz/acre (1/2 % to 5% solution)/ gallon of water Max Range and Pasture application is 48 oz/acre Foliar Treatment. Do Not apply within a'h mile of an active potable water intake. No grazing restrictions. 7 -day haying restriction. Excessive wetting of the foliage is not necessary. 4-8' tall plants should be sprayed on at least 2 sides using a smooth vertical motion from the crown to the bottom. 8' and taller plants should be treated on at least 2 sides in a zigzag motion from the crown to the bottom. Add a non-ionic surfactant at 32 oz/100 gal. Non -Selective. Riparian Noxious Weeds Saltcedar/ tamarisk Identification and Management Saltcedar, aka tamarisk (Tamarix ramosissima), is a non-native deciduous or evergreen shrub or small tree that grows from 5 to 20 feet tall. The bark on saplings and stems is reddish -brown. The leaves are small and scale -like and the flowers are pink to white and 5 -petaled. Saltcedar reproduces by seeds as well as vegetatively. A mature plant can produce up to 600,000 seeds per year. Seeds are viable for up to 45 days under ideal conditions. Saltcedar buds break dormancy in February or March. Flowering occurs anytime between April and August. Ideal conditions for saltcedar seedling survival are saturated soil during the first few weeks of life, a high water table, and open sunny ground with little competition from other plants. Saltcedar was introduced from Eurasia and is now widespread in the United States. It was introduced as an ornamental and as a streambank stabilizer. Saltcedar crowds out native stands of riparian and wetland vegetation. It increases salinity of surface soil, rendering the soil inhospitable to native plant species. It uses more water than native plant communities, one large saltcedar plant can consume up to 200 gallons of water per day. Saltcedar can be found along floodplains, riverbanks, streambanks, marshes, and irrigation ditches. The most effective method of control for saltcedar is to prevent its establishment through proper land management. Monitor susceptible areas for new infestations. On the backside of this sheet are saltcedar management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - After managing saltcedar infestations, other vegetation must be established to prevent re -invasion. Competetive grasses and planted cottonwood cuttings have proven to be effective at reducing the chances of re -invasion. Contact your local CSU Extension office or Natural Resources Conservation Service office for proper seed mix recommendations. Mechanical - A bulldozer or prescribed fire can be used to open up large stands of saltcedar. These methods must be followed up with a herbicide treatment of the resprouts when they are 1 to 2 meters tall. Herbicides - For large stands of saltcedar that would essentially be monotypic, foliar applications of the herbicide Arsenal, Habitat or Arsenal plus Roundup are effective. Late summer/early fall are optimum treatment times. This is recommended for areas that have little to no desirable shrubs and trees. In areas where woody native plants are present and their continued existence is desired, it may be necessary to cut and treat saltcedar stumps with a herbicide. This is referred to as the cut -stump treatment. Cuts should be made within 2 inches of the grounds surface, immediately followed by a herbicide application to the perimeters of the cut stems. The products Arsenal and Remedy Ultra are effective but must be applied within one minute after cutting because wound healing occurs very quickly and decreases herbicide penetration. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup Pro or Max or Ultra 50-100% concentrate Cut -Stump treatment. Ensure coverage of the entire cambium. Cut trees and re -sprouts close to the soil surface. Apply immediately to the freshly cut surface. Applications should be made during periods of active growth and full leaf expansion. Non -Selective. Remedy Ultra Actively growing rate: Cut -Stump treatment. Do not apply directly to water, or to areas where surface water is present. No grazing restrictions for livestock other than lactating dairy animals. Best time to treat is when actively growing. Established grasses are tolerant. 14 -day haying restriction. 3 -day slaughter withdrawal. For root suckering trees, also spray the ground under the plant to control root suckers not yet visible. There is an option for Basal Bark treatment. Read the label. Selective. 1.5-2% solution in oil Or Dormant rate: 3-6 qts in oil to make 100 gallons total. Pathfinder II Ready- to -use Cut -Stump or Basal Bark treatment. Do not apply directly to water, or to areas where surface water is present. Seasonally dry wetland areas ok. No grazing restrictions for livestock other than lactating dairy animals. 14 -day haying restriction. No more than 2.7 gallons/acre/year may be applied. Selective. Arsenal 8-12 oz/gal water (plus 0.25% surfactant) Cut -Stump treatment. Thoroughly wet the cambium area of the trunk. Frill or Gridle treatment. Using a hatchet expose at least 2 growth rings and apply a 25-100% solution to the cup. Addition of a surfactant will improve control for both treatments. Either non-ionic or methylated seed oil may be used. Re-entry interval of 48 hours. Non -Selective. Remedy Ultra 32 to 64 oz/acre In late summer or during drought use the higher rate. 2,4-D or Tordon 22K can be added to the mix. Foliar Treatment. Do not apply directly to water, or to areas where surface water is present. No grazing restrictions for livestock other than lactating dairy animals. Best time to treat is when actively growing and fully leafed out. Established grasses are tolerant. 14 -day haying restriction. 3 -day slaughter withdrawal. Use 10 to 100 gallons/acre. Use higher spray volumes to ensure adequate coverage with increased depth and density of foliage. Thoroughly wet all leaves, stems, and root collars. Add a non-ionic surfactant at 32 oz/100 gallons. Selective. Arsenal 0.6 to 6 oz/acre (1/2 % to 5% solution)/ gallon of water Max Range and Pasture application is 48 oz/acre Foliar Treatment. Do Not apply within a % mile of an active potable water intake. No grazing restrictions. 7 -day haying restriction. Excessive wetting of the foliage is not necessary. 4-8' tall plants should be sprayed on at least 2 sides using a smooth vertical motion from the crown to the bottom. 8' and taller plants should be treated on at least 2 sides in a zigzag motion from the crown to the bottom. Add a non-ionic surfactant at 32 oz/100 gal. Non -Selective. Rangeland -Pasture Recommendations Scotch thistle Identification and Management Scotch thistle (Onopordum acanthium) is a non-native biennial forb that reproduces solely by seed. A biennial is a plant that completes its lifecycle within two years. During the first year of growth, Scotch thistle appears as a rosette in spring or fall. During the second year in mid to late spring - the stem bolts, flowers, sets seed, and the plant dies. A prolific seed producer, Scotch thistle can produce up to 14,000 seeds per plant. Therefore, the key to managing this plant is to prevent seed production. Scotch thistle can grow up to 12 feet tall. Stems are numerous, branched, and have broad, spiny wings. The leaves are large, green, spiny, and covered with fine dense hair giving the leaf a woolly appearance. The flowers are violet to reddish in color, numerous (70-100/plant), and are surrounded by spine - tipped bracts. You can expect to see flowers from mid -June to September. Due to the robust, spiny nature of Scotch thistle, this plant can act as a living barbed wire fence, making areas impassible for wildlife, livestock, and people. Scotch thistle invades rangeland, overgrazed pastures, roadsides, and irrigation ditches. It also prefers moist areas adjacent to creeks and rivers. On the backside of this sheet are Scotch thistle management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Scotch thistle. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to Scotch thistle invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Any mechanical or physical method that severs the root below the soil surface will kill Scotch thistle. Mowing or chopping is most effective when Scotch thistle plants are at full -bloom. Be sure to properly dispose of the flowering cut plants, since seeds can mature and become viable after the plant has been cut down. Biological - There are no biological control insects available that will control Scotch thistle. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/ Comments 2,4-D Amine 1 qt./acre or 1 oz/gal water Spring/fall rosette — before flowering stalk lengthens. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 1.5 — 2 qts./acre or 1.5-2.0 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Clarity 1 qt./acre or 1.0 oz/gal water Spring rosette — before flowering stalk lengthens and/or late fall treatment of rosettes. DO NOT apply near or under trees and/or shrubs or when outside temperatures will exceed 85 degrees. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Milestone 3 to 5 oz/ acre Apply to plants in the spring and early summer at rosette or bolting stage or to the fall rosette. It is permissible to treat seasonally dry wetlands and transitional areas between upland and lowland sites. DO NOT rotate to a broadleaf crop within 1 year of application. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Sulfur Cinquefoil Identification and Management Sulfur cinquefoil (Potentilla recta L.) is a perennial forb in the Ranuncula- ceae family, also know as roughfruit or erect cinquefoil. There are 32 Potentilla species in Colorado, 32 have compound leaves, 26 of them are hairy, four are introduced, one is a rare endemic, and they hybridize within the Genus. Thus, correct identification is imperative. The plant overall has a ring -like form, growing from the center outward and its stiff stems give it an upright growth form, up to three feet tall. The stem, peti- oles, calyx and underside of leaves are hirsuite with long perpendicular hairs, sparse hairs on upper leaf surface. The palmate compound leaves with serrate margins and narrow oblanceolate and generally has five leaflets. The underside of its leaves are green. Leaves are basal, alternate on stem and stipulate. The perfect flowers are arranged in a loose cyme. Each flower has pale yellow petals and notched margins; flower color is not diagnostic. Like many Potentilla species, it has five bracts that subtend flowers, five petals, 25 or 30 stamens, numerous pistils, superior ovary and hypanthium. The style is not plumose or hooked at the top. The achene fruit is slightly winged with a heavily network - like veined surface, holding seeds. It is a prolific seeder (Zouhar 2003). Most seeds fall close to the parent plant. Seed longevity is at least four years (Zouhar 2003). It reproduces mainly vegetatively from the woody base where new shoots sprout as older portions die back, even- tually forming new independent plants (Zouhar 2003). The woody taproot and lateral roots grow annual rings that can be used to age the plant up to 6 years (Dietz et al. 2002). The native slender cinquefoil (Potentilla gracilis) is often confused with sulfur cinquefoil. It has palmate compound leaves that are shallowly toothed, broad oblong -elliptical shape, has five leaflets, and the leaf underside is green. It can be sparsely to densely hairy, but the hairs on the stem are appressed; small hair tufts are on leaflet tips. Long yellow petals exceed the length of its sepals. It grows to three feet tall. sulfur cinquefoil Potentilla mm Beautiful potentilla (Potentilla pulcher- rima) is another hirsuit native that has many appressed stem hairs. However the underside of the leaves are gray and hairy. Its leaves are shallowly and obtusely serrate and each leaflet is rounded at the tip. 201.65tace.ride Gsvcbution in Colorado ub aw Aamtely )aa anrewna,ic. Based cn 2016 Quarterquad and EDDMap5 Field Survey pats ada..,sm �ammaw=<.Iwila I, .. �wpanns.rzand aa., data rcurc.=;<arnPl.aL,cacr.mLleparlan..r.r4.1.. einLetnaltwff B Abet 1b la atrea p( 9110 so icr•» mM.. In Colorado, sulfur cinque- foil is robust in partial to full sun and moist soil found in wet meadows, swales, seeps, ditches, wetlands, riparian areas, and roadsides. However, it can also tolerate slopes and dry sites. Seedlings can be susceptible to drought when faced with interspe- cific competition (Zouhar 2003). P. recta . pulcherrima P. recta P. pule` �rrima Key ID Points 1. Hirsuit calyx with perpendicular hairs 3. Hirsuit stem, petioles & leaves with perpendicular hairs 4. Caudex & woody taproot with annual rings 2. Leaf underside is green L List B Integrated Weed Management Recommendations Effective integrated management means using a variety of eradication methods along with restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes. Restore degraded sites. Avoid soil disturbance. Prevent seed production and seeds from dispersing, e.g. on contaminated equipment. Rest sites until restored. Modify land use practices. Use methods appropriate for the site, other plants present and land uses. CULTURAL Since sulfur cinquefoil is shade -intolerant and seedlings are suseptible to drought, promote species that provide dense shade, high ground cover, or remain robust during drought, providing appropriate site conditions (Zouhar 2003). In cultivated sites, plowing, discing and reseeding to contiguous crop cover, such as grass may be effective as long as the entire root crown is killed (Zouhar 2003). In wildland settings, maintain or restore a competitive assemblage of shrubs, forbs, cool and warm season grasses, annuals and perennials. Use locally adapted species and mycorrhizal fungi that are ecologically appropriate for the site to improve competitiveness. Implement whole site restoration of soils, plants and water regimes where dense colonies of sulfur cinquefoil exist. Minimize soil compaction and disturbance, especially in moist soil. taW .. ' �w�1Y ?u m i y ,�• :� s © G. Eric and Edith Matson, Library of Congress 4.— f - ft BIOLOGICAL Sulfur cinquefoil is not palatable to cattle, sheep or horses likely due to tannins, but may be palatable to goats; when eaten, only buds and flowers are selected (Zouhar 2003). Properly managed grazing can improve vigor of desired species and indirectly reduce sulfur cinquefoil. There are no biological control agents for sulfur cinquefoil authorized in Colorado that would effectively control it. For more information about biological control agents, visit the Colorado Department of Agriculture's Palisade Insectary website at: www.colorado.gov/ag/biocontrol. Arizona Native Plant Society MECHANICAL Since sulfur cinquefoil grows new shoots readily at the caudex, mechanical methods that fragment roots, such as tilling, hand -pulling and mowing are not recommended. Mowing, chopping and deadheading leaves roots behind, stimulates shoot and flower production and disperses flowers and seeds, which expands the infestation. Be sure to remove the entire upper root crown if digging in small infestations. Collect, bag, and dispose of or destroy flowers; seeds could mature and germinate if left. Low severity prescribed fires would leave root caudex unaffected and cause resprouting. Piling slash on infestations can increase temperature transfered to roots during prescribed fire, but resulting high severity effects can damage soils. Spring burns are more effective than fall burns for mature plants; fall burns are best for seedlings (Zouhar 2003). Techline Invasive Plant News CHEMICAL NOTE: Herbicide recommendations to control sulfur cinquefoil in pastures and rangeland are found at: https:// goo.gl/TvWnv9. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Consult local turf and ornamental experts for herbicides appropriate for residential settings. Always read, understand, and follow the label directions. The herbicide label is the LAW! Colorado Department of Agriculture - Conservation Services 305 Interlocken Parkway Broomfield, CO 800zi (303) 869-9030 www.colorado.gov/ag/weeds Wild Caraway Identification and Management List B Irene Shonle, Colorafiv Raft University ention _ Wild caraway (Carum carvi L.) is a biennial to perennial forb in the Apiaceae family, also known as caraway, not to be confused with cumin (Cumi- num cyminum). It grows up to 70 cm tall. Leaves are primarily basal, however stem leaves are also present in fewer numbers and smaller in size comparatively.The overall shape of the basal leaves is ovate with a tripinnate form. Stem leaves are fine and filliform; each leaflet is less than 1 mm wide. Stem leaves are opposite. Stems and leaves are glabrous. Tap roots are fusiform, similar to a carrot, and up to 25 cm long. Like other plants in the carrot family,the inflorescence is a com- pound umbel. Peduncles range from 5 to 13 cm long. On each umbel, there can be 7 to 14 rays, usually an unequal number, each measuring about 2 to 4 cm long in an upright position. The pedicel hold- ing each umbellet is about 1 to 12 mm wide. Usually there are no bracts in the involucre or bractlets in the involucel, or they are tiny. Flowers are usually white to pale pink, and when viewed up close, are very distinct. Each flower is made up of five petals that are obcordate with the center cupped inward forming a hook. Five stamens surround two stylopo- dia. The fruits are oblong, compressed laterally and prominently ribbed evenly. Their size ranges from 3 to 4.5 mm long and are about half as wide. Even with a slight movement, mature seeds shatter and disperse. In Colorado, wild caraway flowers from May through July, sets fruit through September. Its origin is distributed from Europe, North Africa, Middle East, Central Asia, Himalayas in India and West Pakistan (eFloras 2018). It is very common in its native range. Worldwide its fruits are used as a culinary spice and explored for medicinal properties due to its aromatic essential oils, carvone and limonene (Solberg et al. 2016). In 1893, James H. Cowen collected the first Colorado wild caraway specimen from a street in Fort Collins (SEINet 2018). In Utah, wild caraway was likely introduced by Mormon settlers (Pammel 1910). Currently in Colorado, it is found in mountain valleys, and occasionally in the eastern plains. It prefers moist soil, such as irrigated fields and pastures, ditches, riparian corridors, wetlands, wet meadows, swales and roadsides. It can tolerate dry soils, such as montane grasslands, abandoned lands, montane woodlands, subalpine forests and stony fields. Elevation ranges from 1500 to 4300 meters. wild caraway Comm cprvi 201..6 Sbteertide Distribution in Colorado 0.am Based cn X11.6 quartergwd and EODMaps Fleur surrey Data noes aroma. towawa .hOeacre hyone�,� r�r,rr.nda�.,doram.,.�e. *Came. new.. agrauro.. AN a �,...� an,. 1.,osc� K n.sB,bea pcs,.snraA.„ From a distance, wild cara- way can be confused with Queen Anne's lace (Daucus carota) or common yar- row (Achillea millefolium). Queen Anne's lace has distinct three -pronged lin- ear bracts subtending the inflorescence and the rays of the inflorescence form a nest -like structure as they curve inward. • © Botanic Gardens in the Netherlands Key ID Points 1. Flowers compound umbel, 5 white obcordate petals cupped inward, 5 stamens, & 2 stylopodia 2. Tripinnate stem leaves 3. Evenly ribbed seeds 3 mm long 4. Carrot -like brown taproot •1 inane uananD List B Integrated Weed Management Recommendations Rev. 2/19 Effective integrated management means using a variety of eradication methods along with restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes. Restore degraded sites. Avoid soil disturbance. Prevent seed production and seeds from dispersing, e.g. on contaminated equipment. Rest sites until restored. Modify land use practices. Use methods appropriate for the site, other plants present and land uses. H4iarian Randall, Sage -grouse Initiative CULTURAL Since wild caraway prefers moist soil, modify irrigation or water regimes if possible to make sites less hospitable. In irrigated fields, switch to grass/monocots until control is established. In wildland settings, maintain or restore a competitive assemblage of shrubs, forbs, cool and warm season grasses, annuals and perennials. Use locally adapted species that are ecologically appropriate for the site to improve competitiveness. Incorporate soil amendments, soil microbes and mycorrhizal fungi to boost desired species when appropriate. Aim to reduce above and below ground space and nutrients to make them unavailable to wild caraway. Minimize soil compaction and disturbance, especially in wetlands and moist soil. Acquire permits for wetland restoration, if required. © Harris and Ewiing, Library of Congress �f. 't' - BIOLOGICAL Wild caraway is toxic to horses but is highly palatable to other livestock in spring before bolting. Its reported as a possible dewormer and source of minerals (Schmit et al. 2012, Walter et al. 2001). Properly managed grazing can improve vigor of desired species and directly reduce wild caraway. Currently there are no biological control agents for wild caraway authorized in Colorado. For more biocontrol information, visit the Colorado Department of Agriculture's Palisade Insectary website at: www. colorado.gov/ag/biocontrol MECHANICAL Mechanical methods are best for residential areas and small infestations. Sever roots below the soil surface early in the season before the plant stores energy, and before seed production. Mowing, chopping and deadheading leaves roots behind, stimulates more flower production; these methods require consecutive years of season - long treatments. Mowing, especially when timed near flowering or seeding phases, often disperses flowers and seeds, which expands the size of the infested area. Collect, bag, and dispose of or destroy flowers; seeds could mature and germinate if left on the ground. Prescribed fire temperatures would need to be very hot to carry in moist soil conditions; this type of fire would smolder for long durations and kill microbes and native plant roots and may leave wild caraway roots moderately damaged. © Wyoming Bureau of Land Managemen CHEMICAL NOTE: Herbicide recommendations to control wild caraway in pastures and rangeland are found at: httbs:// goo.gl/TvWnv9. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Consult local turf and ornamental experts for herbicides appropriate for residential settings. Always read, understand, and follow the label directions. The herbicide label is the LAW! Colorado Department of Agriculture - Conservation Services 305 Interlocken Parkway Broomfield, CO 800zi (303) 869-9030 www.colorado.gov/ag/weeds Yellow Flag Iris Identification and Management Yellow flag iris (Iris pseudacorus) is an herbaceous perennial, semi -aquatic, obligate wetland species and is found in areas such as stream edges, rivers, lakes, and ponds. Plants grow partially submerged in shallow water and form dense, robust monocultures that expand aggressively and outcompete native vegetation. Yellow flag iris is also re- ferred to as yellow flag, yellow iris, or wa- ter flag. It is in the Iris family, Iridaceae. Reproduction of yellow flag iris is mostly vegetative, through the spread of large clumps of rhizomes in water. Flood events significantly enable the dispersal of this species as rhizome clumps that may even include adult plants break from existing populations and are transported by fast moving water. In addition to rhizome dispersal, plants also can spread and reproduce by seed. Plants typically produce up to 120 seeds per pod which can remain buoyant and float for up to two months. Leaves are long, flat, and cattail -like, usually blue-green in color, broad, and pointed at the tips. Like other iris species, leaves originate from a single point. In cross-section, the base of yel- low flag iris is flattened compared to the round base of cattails. Mature plants produce bright yellow iris flowers from late spring to early summer that occur in inflorescences of several flowers ar- ranged along round stems. Iris flowers are characterized botanically by three petals and three sepals. Yellow flag iris is the only yellow iris found in wetlands in Colorado. Yellow flag iris is native to Eurasia and northern Africa and was introduced to the U.S. through the ornamental trade in the early 1900s. It was first planted oramentally in the West in the mid - 1900s, escaping cultivation and invad- ing natural areas shortly thereafter. The plant grows along shorelines and in floodplains, irrigation ditches, and other slow moving waters. It grows 3 to 6 feet in height, and infestations can impact irrigation, recreation, and native species. Infested irrigation ditches suffer reduced water flow and availability. Recreational impacts include interference with boat propellers, swimming, and fishing. The key to effective control of yellow flag iris is to prevent establishment through proper land management. Maintain healthy riparian corridors, wet- lands and rights -of -way, and continually monitor your property for new infestations. Yellow flag iris is a designated "List A" species in the Colorado Noxious Weed Act. It is required to be eradicated wherever found in the state. The following page provides management recommendations. For more information please visit: www.colorado.gov/ ag/weeds or call the CDA at 303-869-9000, and ask to speak with staff in the Noxious Weed Program. Key ID Points 1. Showy yellow iris flowers, when present. 2. Broad, blue- green leaves that are pointed at the tips. 3. Base of the plant appears flattened in cross-section (not round). LESLIE J. MEHRHOFF List A Integrated Weed Management Recommendations OC� Effective integrated management means using a variety of eradification methods in the same site along with restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes. Restore degraded sites. Avoid soil disturbance. Prevent seed production and seed dispersal, e.g. on contamination equipment. Rest sites until restored. Modify land use practices. Use methods appropriate for the site, including land use practices. _ - - - 6.abundant liliew. , __ •the ti t\ ' tok: • Leslie J. Mehrhaff CULTURAL Cultural controls include maintaining healthy, biodiverse, native communities in slow -moving streams, ponds, reservoirs, and wetlands to help prevent establishment. Prevent introduction and establishment of new infestations by conducting regular inspections of recreational and commercial boats and waterways. Remove all plant parts from boats and prevent transportation of propagules into uninfested waters. *� 4Nglib -* y 1 F ii, " • BIOLOGICAL Biocontrol agents are not included in the prescribed management plans by the State since eradication is the management objective for all List A species. No biocontrol agents for yellow flag iris are available. For more information on the use of biocontrol agents to control weeds in Colorado, please contact the Palisade Insectary of the Colorado Department of Agriculture at 970-464-7916. LI 0 � ZL I O - ' � �I �v` ,g'� I, Leslie J.Mehrhoff MECHANICAL Small infestations can possibly be dug out by hand, especially if water levels are low, but follow-up treatment and monitoring will be required. All plant parts must be collected so that the infestation doesn't reestablish or spread from remaining fragments and roots. Raking is NOT recommended since it will break up rhizomes which can create a bigger problem. Make sure you can access and dispose of all plant parts before attempting mechanical treatment, as ineffective removal can do more harm than good. 6 � �j •� s.... O Y ; �'µ �.' ,_ `w� _ mii7' , • Leslie J. i 'ri , I + l; I� +rr 04, , `t ' y:' ,. ".� .. ;�'+' `i •! Mehr-, := ._ ._ �. F.=- - CHEMICAL The following are recommendations for herbicides that can be applied in aquatic environments to treat yellow flag iris. Rates are approximate and based on smaller infestation, spot -spraying techniques, and follow up treatments may be required. Please reference the label for exact rates, limitations, and other information. Always read, understand, and follow the label directions. The herbicide label is the law. (Q ) J `� Rev. HERBICIDE RATE APPLICATION TIMING Glyphosate (Aquatic -approved formulation) Up to 5% by volume Up to 5% by volume Late spring to early summer will be most effective, although fall applications have been made with some success Imazapyr (Aquatic- approved formulation) 1% by volume Appropriate for fall applications on mature plants Additional herbicide recommendations for List A and B species can be found at: Herbicide Recommendations for Colorado's Noxious Weeds Colorado Department of Agriculture Conservation Services 305 Interlocken Parkway Broomfield, CO 800zi COLORADO (303) 869-9030 University3/23 Department of Agriculture www.colorado.gov/ag/weeds Yellow Nutsedge Identification and Management List B Yellow nutsedge (Cyperus esculentus) is a warm season, perennial species that is native to Europe. Plants range from 6 to 30 inches tall. Leaves originate from the base of each stem and are grass- like, smooth, glossy, and folded lengthwise. The stems are pithy and triangular in cross-section. The flower inflorescence is umbrella -shaped, has up to 4o florets per flattened spikelet, and subtended by 3 to 9, long, leaf- like bracts. Flowers are yellowish - brown in color and appear from June to October. The root system on each plant can produce hundreds to thousands of hard, round, brown - black tubers in a season; the tubers can survive 3 to 4 years. Yellow nutsedge is particularly noticeable in July and August when it grows more quickly than native species and stands out visually. Yellow nutsedge is very damaging to crops like onions, potatoes, beans, and corn. It reduces crop yield and quality by competing for light, water, and nutrients. Yellow nutsedge is a serious invader because it cannot be controlled by common grass herbicides and is extremely difficult to eliminate from cropland sites once it invades. Yellow nutsedge favors moist areas, irrigated croplands, and forms dense colonies. It can also be found on disturbed sites within: pastures, floodplains, dams, ditches, streambanks, roadsides, wet fields, wet prairies, turf, landscaped areas, and around lakes and ponds. It has been sighted in elevations up to 8,20o feet. Once yellow nutsedge establishes, it is drought tolerant. The key to effective control of yellow nutsedge is prevention. It is especially important to clean dirt and tubers from potentially contaminated farm and construction equipment. It can also be introduced with nursery activities and contaminated transplants. New infestations must be treated early , before tubers form and the plant becomes established.. Hand pulling plants, when they first appear and have less than 6 leaves, help deplete carbohydrates that supply the tubers growth. In the spring, when plants are young, herbicide treatments are an option. Details on the back of this sheet can help you create a management plan compatible with your site ecology. Yellow Nutsedge C,fre,us escore,P s 2013 Quarter Quad Survey 29,3 4uannyuaa Sumly ihatnbaAron eM AlmnOan e It is illegal to plant any variety of yellow nutsedge in Colorado, including chufa (Cyperus esculentus var. sativus) which is sometimes used to attract wildlife, such as turkeys. natruxoar acreage e..a es e.a,aee M Care, fOVeC tmwntera erd cenWae04 ur cdameo Dewar,. on apeawm Yellow nutsedge is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be either eliminated, contained, or suppressed depending on the local infestations. For more information visit www.colorado.gov/ag/ weeds or call the State Weed Coordinator at the Colorado Department of Agriculture, Conservation Services Division, (303) 869-9030. '�...O h Lynn Scsnosk Univ. of Ceorgiz © 2007 The Regents of Univ. of Cal Key ID Points 1. Stout triangular stem with grass -like leaves. 2. Brown to black, round tubers at the ends of slender rhizomes. 3. Yellowish, triangular, flattened, and oblong seeds. 4. Leave - like bracts under the inflorescence. List B Integrated Weed Management Recommendations Prevention is the best control for yellow nutsedge. Avoid soil disturbances and introduction from contaminated equipment or nursery material. Once established, it is difficult to eliminate because herbicides don't effective kill the plant or tubers. Young plants can be hand pulled before they form tubers and pulling can deplete energy stored in the roots. r xc a .ate , ,-,r,.., � _ r ,z' "" x, f y7 . - CULTURAL The best control method is preventing the establishment of new infestations by minimizing disturbance, preventing tuber and seed dispersal by cleaning equipment, carefully inspecting plantings from nurseries, eliminating seed production, and maintaining healthy native communities. Yellow nutsedge can penetrate and grow through black polyethylene plastic. 1/ it DJ" ': {,L " r � ;. i� 1I I{ -,t BIOLOGICAL In cultivated field, pigs and chickens can effectively grub and feed on tubers. However, there are no other biocontrol agents available for yellow nutsedge. Biocontrol takes many years of research and development. For more information on biocontrols, contact the Colorado Department of Agriculture's Insectary in Palisade, Colorado at 970-464-7916. 1.� tzt W i'tl �} `? �; a - ` •. '" =' - ,, ..�, _, . s` __ . _ 44 -- � -ems MECHANICAL Hand pull small nutsedge plants when they have less than 6 leaves, which is before tubers form. This is approximately every z to 3 weeks during the growing season; over time, this will deplete energy reserves in the roots. Tilling can potentially spread tubers. = Nc:_ L N Q U O , �? - 4 ;�, :- = Y►"� "` , ` .......``'`"" � . t .`M'� ,_ " %y� '!` CHEMICAL Not many herbicides are effective at controlling yellow nutsedge because they lack selectivity or uptake, and most are not effective on tubers. The table below includes recommendations for herbicides that can be applied to turf, range, and pastures. Always read, understand, and follow the label directions. The herbicide label is the LAW! n W Updated: 07/2015 ] Herbicide Rate Application Timing Aminocyclopyrachl or+ Chlorsulfuron (Perspective) 4.75-8 oz. product/acre + 0.25% non-ionic surfactant Apply at bolting to bud growth stages. (Spring to early summer) IMPORTANT: Applications greater than 5.5 oz. product/acre exceeds the threshold for selectivity. DO NOT treat in the root zone of desirable trees and shrubs. Not permitted for use in the San Luis Valley. Not for use on grazed or feed forage. Aminopyralid + Metsulfuron (Opensight) 2.5-3 oz. product/acre + 0.25% non-ionic surfactant Apply at bolting to bud growth stages. (Spring to early summer) Not permitted for use in the San Luis Valley. See label regarding grazed or feed forage. Metsulfuron (Escort XP) + 2,4-D 1 oz. product/acre + 1 qt. 2,4-D/acre + 0.25 %v/v non-ionic surfactant Apply at bolting to bud growth stages. (Spring to early summer) May stunt grass growth. Additional herbicide recommendations for this and other species can be found at: goo.gl/TvWnv9 Colorado Department of Agriculture - Conservation Services D A 3o5 Interlocken Parkway do C CO� Broomfield, CO 800zi f.' (303) 869-9030 University www.colorado.gov/ag/weeds Rangeland -Pasture Recommendations Yellow Toadflax Identification and Management Yellow toadflax (Linaria vulgaris) is a non-native deep-rooted perennial that spreads by seeds and aggressive, creeping, horizontal roots. Roots can grow 3 or more feet deep with lateral roots extending several yards from the parent plant. Yellow toadflax stems are smooth, erect, leafy, often clumped, and 1 to 21/2 feet tall. The leaves are pale green, alternate, narrow, pointed at both ends and are about two and one-half inches long. The flowers grow at the base of upper leaves, usually clustered at the top of each stem. The flowers are snapdragon -like in appearance, are yellow with an orange throat and a straight to slightly curved spur. Yellow toadflax seeds usually germinate in May in Colorado. However, shoots from root buds may emerge as early as mid -March. Yellow toadflax typically begins flowering in mid- to late May and, under optimal conditions, may continue to flower into September. A mature yellow toadflax plant may produce up to 500,000 seeds per year. Most seeds germinate the following spring. These seeds may lie dormant in the soil for as long as 10 years. First year plants can produce 90 to 100 secondary shoots from the roots. The combination of prolific seed production and rapid root expansion makes yellow toadflax a formidable invader. The key to controlling yellow toadflax is to eliminate seed production and also to reduce the plant's nutrient reserves in its root system through persistent, long-term management. Yellow toadflax, a member of the Figwort family, sometimes is called "butter and eggs" or "wild snapdragon". Yellow toadflax is a native of Eurasia where it was used to make fabric dyes and for medicinal purposes. It was originally introduced as an ornamental and now is considered an invasive plant throughout much of the United States. It thrives in a variety of soils and climatic conditions and is a strong competitor. Once established, even sites in excellent condition will do little to stop its spread. Combining control measures for yellow toadflax is imperative. The weed needs to be continually stressed, forcing it to exhaust root nutrient stores and eventually die. Of all control methods, prevention is the most important. Maintain healthy pasture and rangeland and continually monitor your property for new infestations. Below are yellow toadflax management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of yellow toadflax. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to yellow toadflax invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Hand -pulling this plant can be useful especially for small infestations in sand or with wetter soils. Pulling must be repeated several times a year for up to 10 to 15 years to be sure the root stock and seed bank is depleted. Mowing is not recommended as it stimulates more plants to grow from the roots. Mowing combined with herbicide application does not improve control. Biological - There are several different biological control agents being used, but the success of the agents is yet to be determined. Contact the Colorado Department of Agriculture Insectary in Palisade to learn more. Please call 970-464-7916 or go to www.palisadeinsectary.com for detailed information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Testing of additional chemical options is on going. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Plateau 8 oz/acre or 0.4 oz/gal Fall application prior to a hard freeze is optimum. Can also make application during early flower stage. Add a methylated seed oil surfactant (MSO) at 0.32 oz/gal water or 1 qt/100 gal water. 12 oz rate may cause injury to some cool season grasses. Can safely be used under trees. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Apply at flowering for several consecutive years. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Telar XP 1.5 to 2.6 oz/acre Non -crop areas. Apply during flowering and in the fall. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Round -up Ultra 2 qt/acre or 2 oz/gal water Apply prior to flowering or in the fall with spray directed at the toadflax plants only. Round -up will kill all vegetation it contacts. Add a non-ionic surfactant @ 0.32oz/gal water or 1 gt/100 gal water. APPENDIX B Weed Inventory Report (PLACEHOLDER) APPENDIX C Completed Vehicle and Equipment Inspection Logs (PLACEHOLDER) ATTACHMENT D Exhibit F-1: Reclamation Plan Map �iv* - 0 - 0 ATTACHMENT E Well and Pond Locations and Pipeline Routing Options PROCESS DISCARD Y - STOCKPILE (PDS): 60 ACRES INL°TrI(SAINING, PLANT OPERATIONS, PROCESSING, OBLIGES AND REPAIR FACILITIES uR (zs) Nouns PER DAY, WITHOUT RESTRICHON ER BOARD OF GOON, mMMISSIONERS APPROVAAL) THE OPERATE MAY PERATE SEVEN (2) DAYS PER PRAIRIE DOG TOWNS FROM 3. VISITOR ACCESS TO MINE SHALL BE LIMITED BY WELLS RANCH GUARDSHACN AND SECURITY GATES AT MINE ENTRANCE/EXIT. 4 EXISTING WELL TO BE PLUGGED AND ABANDONED OR MINE SEQUENCE AREA S TEPO TO BE USED IN RECLAMATION BY THE END OF YEAR B. 1000 000 0 1000 8000 Seal : I. = 1000' SYMBOL LEGEND REINFORCED CEMENT CONCRETE PROPOSED WE PROPOSPDGRAVPL xnULPOA0 OMURA) 1 RAIALDIE SEPIIKILB 2024 1I'UIll 1 COLORADO SAND COMPANY U. LLC RBRSNY MINI WELL AND POND LOCATIONS AND PDMINI ROUTING OPTIONS ' 'MC TRC ENVIRONMENTAL CORP. 13011419 3A3) ORAPYR 2,0 CLOCKER BO ORRAIRWSSI ATTACHMENT F Letter to Jason Surface, CPW District Area Wildlife Manager No, 123 N. College Ave., Ste, 370 T 970.484.3263 Fort Collins, CO 80524 TRCcompanies.com February 8, 2024 Jason Surface Area Wildlife Manager Colorado Parks and Wildlife Fort Collins Office 317 West Prospect Road Fort Collins, Colorado 80526 Sent via email to: jason.surface@state.co.us RE: Colorado Sand Company LLC — Kersey Mine Project Project Review and Request for Concurrence Mr. Surface, Colorado Sand Company LLC (CSC) is seeking assistance with identifying developmental constraints for the Kersey Mine Project (Project), a proposed surface pit sand and gravel mine located on approximately 4,018 acres in Weld County, Colorado (Project Area; Figure 1). The Project is located within privately owned open -range lands that have been developed for oil and gas production north of County Road 388 and east of County Road 61 approximately 6.5 miles east -north-east of the Town of Kersey, Colorado. The Project is located within public land survey system Township 5 North, Range 63 West, Sections 2, 3, 10, 11, 14, 15, and Township 6 North, Range 63 West, Section 34. TRC completed a Project -specific desktop analysis and field survey on October 16 and 20, 2023 to identify critical development issues. The following biological resources were identified within the Project Area: • Based on the field survey, the Project Area consists of grasslands and is used for fossil fuel extraction. Existing oil and gas infrastructure on site includes numerous building facilities, equipment, pipelines, and access roads. • No wetlands were identified within the Project Area. One 0.38 -acre manmade stock pond was observed within the Project Area. The pond was dry at the time of the survey. • The CPW Threatened and Endangered Species List identifies 31 state -listed threatened and endangered species including 1 amphibian species, 8 bird species, 14 fish species, and 8 mammal species. Based on an assessment of each species' habitat requirements, range, and distribution, suitable habitat for one state -listed species, the burrowing owl, is present within the Project Area. Two burrowing owls were observed within two separate prairie dog towns (one within the Project Area and one approximately 0.5 miles west of the Project Area) during the survey. • No High Priority Habitat is present within the Project Area. TRC, on behalf of CSC, requests CPW's review and concurrence of the state -listed species findings. CSC will coordinate with CPW to develop applicable avoidance and minimization measures, where required. If species -specific surveys are recommended, please provide preferred survey methodology. Project -specific shapefiles have been provided to assist in your review. Jason Surface February 8, 2024 Page 2 of 2 If you have any questions regarding this request, please contact me at (970) 214-3338 and plorenz@trccompanies.com. Thank you in advance for your prompt response to this request. Sincerely, Patti Lorenz Senior Environmental Specialist Enclosures: Figure 1 (Project Overview); Shapefiles cc: Brady Reece (CSC) Tim McCarthy (Tamarack Consultation) Karen Baud (TRC) Grant Waldie (TRC) TRC 5+5,E}!Kr 'KC run PROW COLORADO SAND COMPANY, MERSEY MINE WELD COUNTY, COLORADO — PROJECT AREA i 54V rn Ltri Hk TALE PROJECT AREA LOCATION [WARY BY A CLINE OACTLEDB ;PROVED E.' R JENKIN5 MOO ND 535891 B TRACY FIGURE 7 IdAI W1E' ocTD9ER N7] BASE MAP USCS TORO. MAP DATA SOURCES TRC ►(ti B Y.fAO "D /`�Q►�5 � FEET 1 MOOD i' = 4.000 tir "MC 1538 COLE BOULEYARO BUILDING] SUITE 150 LAKEW0OD CO 80401 PHONE ]0] 197 5555 r9E OMC0MG5wOCC P30PD54. ATTACHMENT G Correspondence and Settlement Agreement between Chevron and CSC Krajewski, Dustin From: Sent: To: Cc: Subject: Attachments: Hayes, Christopher <ChristopherHayes@chevron.com> Tuesday, September 17, 2024 2:04 PM Brady Reece; Krajewski, Dustin; Waldie, Grant; DeRose, Brian [PDC Energy] Chalegne O'Brien RE: [EXTERNAL] RE: Updated Draft Indemnity & Release Agreement Noble - Colorado Sand Company - Indemnity and Release Agreement (Noble Draft 16 September 2024).docx This is an External email. Do not click links or open attachments unless you validate the sender and know the content is safe. ALWAYS hover over the link to preview the actual URL/site and confirm its legitimacy. Brady: We're just waiting on approval from our Environmental Affairs Manager. In the meantime, attached is an updated draft of the agreement that integrates all of the Exhibits into a single word document. I've also added a placeholder for the "Effective Date" in the introductory paragraph. Will keep you posted, CMH From: Brady Reece <breece@capitalsand.com> Sent: Tuesday, September 17, 2024 1:38 PM To: Krajewski, Dustin <DKrajewski@trccompanies.com>; Hayes, Christopher <ChristopherHayes@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] Re: [EXTERNAL] RE: Updated Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Chris and Brian, Do you have any additional questions on the document? From our perspective, we are good with the agreement as written. Please let us know when the document has been sent out for signatures. Thank you. Best, Brady Brady Reece I (970) 978-9858 1 From: Krajewski, Dustin <DKrajewski@trccompanies.com> Sent: Friday, September 13, 2024 10:52:24 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Brady Reece <breece@capitalsand.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: RE: [EXTERNAL] RE: Updated Draft Indemnity & Release Agreement All, Please see the updated agreement with CSC information and all exhibits (Exhibit B included as separate attachment). Please let us know if you need anything else. Thanks, Dustin Krajewski, PE Program Manager / Market Director Environmental Engineering, Construction & Remediation 1526 Cole Blvd, Bldg 3, Ste 150, Lakewood, CO 80401 lir T: 303.395.4072 I T� Cell:970.214.0548 dkral wsk CcDt ccompan es com Linkedln I Twitter I Bloq I TRCcompanies.com From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Friday, September 13, 2024 10:42 AM To: Brady Reece <breece@capitalsand.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [EXTERNAL] RE: Updated Draft Indemnity & Release Agreement This is an External email. Do not click links or open attachments unless you validate the sender and know the content is safe. ALWAYS hover over the link to preview the actual URL/site and confirm its legitimacy. Brady: One follow-up question: do you have a final version of the Facility specifications that we'll need to insert in Exhibit B? I want to make sure that we have the most recent version before we seek final approvals. Thanks! CMH From: Brady Reece <breece@capitalsand.com> Sent: Friday, September 13, 2024 7:02 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] Re: Updated Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. 2 Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Thanks Chris. This version works for us. What is the timeline on your side for final approvals and execution? Best, Brady Brady Reece I M: (970) 978-9858 From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Thursday, September 12, 2024 10:36 AM To: Brady Reece <breece@capitalsand.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: RE: Updated Draft Indemnity & Release Agreement Brady: Attached is the revised draft. Please have a look and let me know if this version works. If yes, we can move to final approvals and execution. Many Thanks, CMH From: Brady Reece <breece@capitalsand.com> Sent: Thursday, September 12, 2024 10:17 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] RE: Updated Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Chris, I wanted to follow up on our call Tuesday and see if you had any additional language questions. Best, Brady 3 From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Tuesday, August 13, 2024 5:26 PM To: Brady Reece <breece@capitalsand.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.gilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: RE: Updated Draft Indemnity & Release Agreement Brady: Brian and I had a chance to sit down and review the latest mark-up to the Indemnity and Release Agreement. I think we are largely aligned, but we did want to reinstate the provision about abandoned wells. We've offered some clarifying language that might help make our intentions more clear. Happy to set aside some time discuss. Thanks, CMH Christopher Hayes Senior Counsel christopherhayes@chevron.com Chevron U.S.A. Inc. Chevron Rockies Business Unit 109918th Street, Suite 1500 Denver, CO 80202 720.201.7654 From: Brady Reece <breece@capitalsand.com> Sent: Wednesday, July 31, 2024 9:22 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.Rilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] Re: Updated Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Chris, Please see attached our redlined version of the agreement. We have accepted a majority of the changes. One exception is the Abandoned Well provision. We had some confusion on if this related to wells already P&A or ones that are active now and to be removed at a later date. Please let us know if you have time to jump on a call to discuss. Thank you. 4 Best, Brady Brady Reece I M: (970) 978-9858 From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Monday, May 13, 2024 11:22 PM To: Krajewski, Dustin <DKrajewski@trccompanies.com>; Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.gilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com>; Brady Reece <breece@capitalsand.com> Cc: tmccarthy <tmccarthy@tamarackconsultingllc.com>; Chalegne O'Brien <cmo@farmercompanies.com> Subject: Updated Draft Indemnity & Release Agreement Dustin: Thanks for your patience while I gathered input from the Chevron team. Attached is a revised draft of the Indemnity Agreement for your review. I started by accepting all of the proposed changes from CSC and then marking up the provisions where we still have some work to do. I've left a series of comments to help explain our thinking on some of the key issues. I think we've made solid progress, but it may be helpful to schedule some time for the group to discuss the remaining mark-ups. My calendar is filled up tomorrow and Wednesday but I have flexibility on Thursday. Otherwise, we can pick a day next week. Many Thanks, CMH Christopher Hayes Senior Counsel 5 christopherhayes@chevron.com Chevron U.S.A. Inc. Chevron Rockies Business Unit 109918th Street, Suite 1500 Denver, CO 80202 720.201.7654 From: Krajewski, Dustin <DKrajewski@trccompanies.com> Sent: Monday, April 29, 2024 11:05 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.gilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com>; Brady Reece <breece@capitalsand.com> Cc: tmccarthy <tmccarthy@tamarackconsultingllc.com>; Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] RE: [EXTERNAL] Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Hi Chris, Thanks again for sending this agreement over. Please see the attached redlined agreement for edits form Colorado Sand Company. If there are concerns based on our review, we would like to schedule a call to discuss those. Can you provide a few days/times you are available later this week (if possible) and we will schedule a meeting around that? Thank you, Dustin Krajewski, PE Colorado Practice Leader Environmental Engineering, Construction & Remediation 6 TR 1526 Cole Blvd, Bldg 3, Ste 150, Lakewood, CO 80401 ■ T: 303.395.4072 Cell: 970.214.0548 dkrajewski(a�trccompanies.com LinkedIn Twitter I Blog TRCcompanies.com From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Tuesday, April 16, 2024 9:02 AM To: Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.Rilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com>; Brady Reece <breece@capitalsand.com> Subject: [EXTERNAL] Draft Indemnity & Release Agreement This is an External email. Do not click links or open attachments unless you validate the sender and know the content is safe. ALWAYS hover over the link to preview the actual URL/site and confirm its legitimacy. All: As discussed during our call, I've prepared a draft "Indemnity and Release Agreement" that will reinforce safety and foster communication between Chevron and CSC while both parties pursue their respective operations on the Wells Ranch property. Happy to discuss in detail once you've had a chance to review. Thanks, CMH Christopher Hayes Senior Counsel christopherhayes@chevron.com Chevron U.S.A. Inc. 7 Chevron Rockies Business Unit 109918th Street, Suite 1500 Denver, CO 80202 720.201.7654 8 SETTLEMENT AGREEMENT AND RELEASE This SETTLEMENT AGREEMENT AND RELEASE ("Agreement") effective as of [INSERT DATE] (the "Effective Date") is between Noble Energy, Inc., a Delaware corporation ("Chevron"), and Colorado Sand Company II, LLC, a Delaware limited liability company ("Operator"). RECITALS A. WHEREAS, Operator possesses a leasehold interest for the lands in Weld County, Colorado described in Exhibit A to this Agreement, said lands referred to herein as the "Property", which property is owned by Wells Ranch, LLLP ("Wells Ranch"): B. WHEREAS, Operator intends to develop on the Property a sand mine facility (the "Facility") as detailed in Exhibit B to this Agreement that will include excavating and material transporting equipment, wet processing equipment, dry processing equipment and loadout facility C. WHEREAS, the Property is located within and adjacent to lands (the "Adjacent Lands") owned by Wells Ranch where Chevron conducts oil and gas operations in accordance with the Surface Lease between Wells Ranch and Chevron effective as of May 18, 2012, as amended from time to time (the "Surface Lease"). D. WHEREAS, Chevron must maintain its right to access the Property and Adjacent Lands. E. WHEREAS certain installation, construction, and operational activities conducted by Operator in connection with the Facility may impact the oil & gas operations planned by Chevron. F. WHEREAS, the Parties wish to allocate liability for any future Claims related to the installation, construction, and operation of the Facility and to establish principles of cooperation to mitigate any potential impacts to health, safety, and the environment. NOW THEREFORE, in consideration of the mutual covenants and promises, the Parties agree as follows: TERMS AND CONDITIONS 1. DEFINITIONS, INTERPRETATION, AND EXHIBITS 1.1 Definitions. In this Agreement, these capitalized words or expressions have the following meanings: "Affiliates" means any legal entity that controls, is controlled by, or is under common control with, another legal entity. An entity is deemed to "control" another if it owns directly or indirectly at least 50% of the shares or interests entitled to vote. "Claims" means any claim, liability, loss, demand, damage, cost, cause of action of any kind, obligation, requirement, clean-up costs, penalty, fine, interest and award, and whether arising by law, contract, tort (including negligence), voluntary settlement, or in any other manner. "Chevron Group" means Chevron, Chevron's Affiliates, Chevron invitees, and their respective directors, officers, and employees (and excludes Chevron's contractors and their subcontractors, and their respective directors, officers, and employees). Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 1 "Environmental Documents" means any technical reports, memoranda, correspondence, and other documents regarding the Work or the environmental conditions at the Property. "Government Entity" means any department, court, tribunal, exchange, authority, commission, board, instrumentality, or agency of any municipal, local, state, federal, or other governmental authority (including regulatory authorities and administrative bodies) and any subdivision of the foregoing or any Person owned or controlled by the government. "Hazardous Material" means any chemical substance, product, waste, or other material which is, or becomes identified, listed, published, regulated, or defined as, or which shows the characteristics of, a hazardous substance, hazardous waste, hazardous material, toxic substance or other regulatory term, including oil and associated waste or byproducts and components, petroleum hydrocarbons and associated waste or byproducts, and components, produced water, polychlorinated biphenyls, naturally occurring radioactive materials, and asbestos, or which is otherwise regulated or restricted under any applicable law or by any governmental entity, or which may otherwise cause, contribute to, or result in an adverse impact to the environment or an environmental obligation. "Operator Group" means Operator, Operator's Affiliates, Subcontractors, and their respective directors, officers, employees, and any Person acting on behalf of any of them in connection with any subject matter of this Agreement. "Person" means an individual, corporation, company, association, partnership, state, statutory corporation, government entity, or any other legal entity. "Records" means mean information in any recorded form, including electronic, that relates to this Agreement. "Released Contractor" means a contractor that has entered into an agreement with Chevron (whether before or after the Effective Date) that includes release, defense and indemnity provisions that are substantially similar to those in Section 5. "Released Contractor Group" means a Released Contractor and its subcontractor of any tier. "Remediation" or "Remediate" means environmental investigation, assessment, monitoring, removal, remediation, corrective action, response action, mitigation, treatment, decontamination, or cleanup. "Subcontractor" means any Person who is engaged by Operator or any subcontractor or subsupplier of any tier to provide Services (other than an employee of Operator). "Subsequent Operator" means any person or persons taking title to the Property. 2. PERMITTING AND AGENCY COMMUNICATIONS 2.1 Operations at the Proposed Facility. Operator warrants that the Facility will not substantially deviate from the specifications included in Exhibit B, attached hereto. In the event that Operator intends to modify the design of the Facility in a manner that would be reasonably expected to impact: (i) oil & gas operations conducted by Chevron on the Adjacent Lands; or (ii) the health, safety, and environment of the Property, the Adjacent Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 2 Lands, and any personnel of Operator Group or Chevron Group, Operator shall provide written notification to Chevron that includes a summary of the planned modifications. Upon Chevron's written notification, Operator shall provide any data reasonably requested by Chevron to evaluate potential impacts of the design modifications to its surface or subsurface oil & gas operations as well as any potential impacts that might affect Chevron's ability to comply with applicable regulations. 2.2 Permitting. Operator will provide Chevron with copies of any permit applications, environmental assessment reports, technical reports, or other Environmental Documents related to permitting operation or construction of the Facility at least 10 business days prior to submission to a Governmental Entity. Operator shall provide a copy of any permits or authorizations issued and obtained for the Facility. Operator will also notify Chevron reasonably in advance of any proposed changes to the Facility that will substantially modify any permits or authorizations obtained for the Facility. 2.3 Air Emissions. Operator recognizes that Chevron has an obligation under federal and state regulations, including Colorado Regulation No. 7, to monitor air quality and the air emissions of its operations and to submit regular reports to Governmental Entities regarding air emissions. Operator and Chevron shall reasonably cooperate and assist each other in fulfilling obligations relating to current and future air emissions requirements, monitoring and reporting under applicable Environmental Laws. 2.4 Notice of Environmental Conditions. (A) If, during the permitting, construction, or operation of the proposed Facility, Operator becomes aware of a condition pertaining to the Property, Adjacent Property or Facility that could be considered a release of Hazardous Materials, a violation of any applicable Law pertaining to health or the environment ("Applicable Environmental Laws"), that could require notice or reporting to a Governmental Entity under Applicable Environmental Laws, or that could give rise to a Claim for property damages, however caused, then Operator shall immediately notify Chevron in writing and promptly provide Chevron a copy or any notice or communication provided by Operator to any Governmental Entity regarding said condition. (B) If Chevron becomes aware of a release of Hazardous Materials that originates or emanates from its oil and gas facilities on the Property or the Adjacent Property that could: (i) impact the Facility; (ii) be considered a violation of Applicable Environmental Laws that could require notice or reporting to a Governmental Entity under Applicable Environmental Laws; or (iii) give rise to a Claim for property damages, however caused, then Chevron shall immediately notify Operator in writing. 2.5 Notice of Potential Violations. (A) Operator shall give prompt written notice to Chevron of: (1) Any notice, proceeding, or regulatory or enforcement action in connection with a release of Hazardous Materials that may result in Operator conducting Remediation under an applicable Environmental Law; Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 3 (2) Exceedances of limitations set on air emissions that are enforceable under Environmental Law, including permit or regulatory thresholds. (B) Chevron shall give prompt written notice to Operator of (1) Any notice, proceeding, or regulatory enforcement action in connection with a release of Hazardous Materials that may result in Chevron conducting Remediation on the Property. 2.6 Cooperation with Information Requests. Each Party agrees to reasonably cooperate with the other Parry and provide, upon the other Party's reasonable request, environmental assessments, audits, investigations, testing, sampling, analysis, or other information related to notices provided under this Section 2. 3. SAFETY AND MAINTENANCE REQUIREMENTS 3.1 Safety Management System. Prior to the initiation of construction activities associated with the Facility, Operator shall provide Chevron with a copy of its safety management system for the Facility that addresses all applicable safety and emergency procedures, including the drug, alcohol, and road vehicle search procedures. 3.2 Shared Road Use. (A) The Parties currently use or intend to use and maintain access roads, all or portions of which were constructed and/or have been maintained by the Parties and/or their predecessors in interest (the "Road") that allows Chevron to access various oil and gas wells and facilities associated with the Surface Lease. The Parties shall share the Road as specifically shown on Exhibit C to facilitate installation, construction, and operation of the Facility while Chevron carries out oil and gas operations. (B) The Parties shall equally share all costs and expense necessary to maintain the Road in a condition which, in the Parties' reasonable judgment, will allow safe and convenient passage for, including but not limited to, the vehicles of Operator Group and Chevron Group any other contractors employed by any member of Chevron Group. Routine maintenance of the Road shall include shared mowing and weed control, snow plowing and grading the surface to provide for proper drainage and pothole and washout repair ("Routine Maintenance"). (C) If a Party causes unusual damages to the Road that cannot be corrected by Routine Maintenance, then the Party causing such damage shall bear the entire cost to reclaim the affected portions of the Road. 3.3 Setbacks. Operator shall not conduct operations within 150 feet from any wells or facilities operated by Chevron. In addition, Operator shall not conduct operations within 50 feet of any flowlines or midstream infrastructure operated by any member of Chevron Group. 3.4 Abandoned Wells. In the event that Operator wishes to lower the height of an abandoned wellhead on the Property, it shall provide written notice to Chevron. Chevron shall complete the requested removal operations within 240 days after receipt of such written Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 4 notice. Operator shall reimburse Chevron for all documented costs associated with the removal operations. In the event Chevron is not able to complete such removal within the 240 -day period it shall give written notice to Operator. If Operator receives such written notice, or if the work is not completed within said 240 -day period, Operator shall have the right (but not the obligation) to perform the removal operation by hiring a third -party contractor reasonably experienced in such work so long as Operator gives Chevron at least thirty (30) days advance written notice that it will be commencing said well removal work. Before commencement of the work by a third -party contractor, Chevron must provide its written consent, which consent shall not be unreasonably withheld. 3.5 Simultaneous Operations. (A) Operator shall notify Chevron in the event that it intends to conduct simultaneous operations that could be reasonably expected to affect Chevron's existing oil and gas operations around the Property. In no event shall Operator interrupt Chevron's use of the Road or fracking operations. (B) Chevron shall notify Operator in the event that it intends to conduct simultaneous operations that could be reasonably expected to affect: (i) Operator's construction or mining operations on the Property; or (ii) Operator's ability to access or use the Road. In no event shall Chevron prevent Operator's use of the Road or prohibit Operator's ability to transport sand off the Property. (C) Operator shall notify Chevron in the event it becomes aware of any conditions or changes in operation that could reasonably be expected to adversely affect Chevron's existing oil and gas operations in or around the Property, including, but not limited to: (i) Chevron's ability to access or use the Road; or (ii) changes or additions to the proposed mining operations. Such notice shall be delivered to Chevron within 12 hours after Operator becomes aware of the conditions or changes in operation that could impact Chevron's oil and gas operations and shall include a summary of the event or condition, the potential safety concerns, and the estimated time necessary for Operator to resume normal operations. (D) Chevron shall notify Operator in the event it becomes aware of any conditions or changes in operation that could reasonably be expected to adversely affect Operator's construction or mining operations in or around the Property, including, but not limited to Operator's ability to access or use the Road. Such notice shall be delivered to Operator within 12 hours after Chevron becomes aware of the conditions or changes in operation that could impact Operator's operations. 4. INDEMNIFICATION 4.1 Operator Indemnification. (A) Operator specifically assumes and shall be responsible for the physical and environmental condition of the Property and all environmental obligations related to the operations and activities of the Facility, as well as any wellhead abandonment operations it undertakes in accordance with Section 4.1. Operator shall release, indemnify, and defend Chevron Group from and against any Claims arising from the operations and activities of the Facility, including Claims Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 5 involving any actual, proposed, or threatened use, treatment, storage, holding, existence, disposition, release, generation, production, manufacturing, processing, refining, control, management, abatement, removal, handling, transfer, or transportation to or from the Adjacent Land or Property of any Hazardous Materials, and other substances, pollutants or contaminants, arising under any Applicable Environmental Laws, regardless of whether existing prior to, as of, or after the Effective Date, or whether the Claim is known or unknown, foreseeable or unforeseeable, except to the extent such Claims are due to the fault of Chevron. (B) Operator shall, and shall cause that all of Operator's future assignees and successors release, indemnify, and defend Chevron from and against any and all Claims related to the environmental condition, operations and activities of the Facility regardless of whether existing prior to, as of, or after the Effective Date, attributable or relating to any period before or after the Effective Date, or whether the Claims is known or unknown, foreseeable or unforeseeable. 4.2 Chevron Indemnification. (A) Chevron shall release, indemnify and defend Operator from and against any Claims arising from its oil and gas operations that impact the Facility, including Claims involving any actual, proposed, or threatened use, treatment, storage, holding, existence, disposition, release, generation, production, manufacturing, processing, refining, control, management, abatement, removal, handling, transfer, or transportation to or from the Adjacent Land or Property of any Hazardous Materials, and other substances, pollutants or contaminants, arising under any Applicable Environmental Laws, regardless of whether existing prior to, as of, or after the Effective Date, or whether the Claim is known or unknown, foreseeable or unforeseeable, except to the extent to the extent such Claims are due to the fault of Operator. (B) Chevron shall, and shall cause that all of Chevron's future assignees and successors release, indemnify, and defend Operator from and against any and all Claims related to the environmental condition, operations and activities of Chevron on the Adjacent Land and Property regardless of whether existing prior to, as of, or after the Effective Date, attributable or relating to any period before or after the Effective Date, or whether the Claims are known or unknown, foreseeable or unforeseeable. 4.3 Third Party Property If damage is suffered or loss is incurred in relation to property of any Person who is not a member of Chevron Group, Operator Group, or Released Contractor Group where that damage or loss arises out of this Agreement, liability for Claims associated with such damage or loss shall be apportioned as at law and the Party, if any, found responsible at law shall indemnify the other Party from such Claims to the full extent of the responsible Party's liability at law. 4.4 Limitation on Class of Damages. (A) Chevron and Operator mutually waive and release to the fullest extent permitted by applicable law, all of the following Claims for damages arising out of this Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 6 Agreement, whether such Claims are made in connection with an indemnity, a breach of any obligation under this Agreement, or any other Claim. (1) Indirect, special, or consequential damage or loss. (2) Loss of profits, loss of production (including production of petroleum or petroleum products), loss of economic advantage or benefit, or loss of business opportunity, in each case whether direct, indirect, prospective, or actual. (3) Punitive or exemplary damages. (B) The limitations provided in Section 4.4(A) only apply to damages or losses suffered by a member of Chevron Group or Operator Group. The limitations provided in Section 4.4(A) do not apply to Claims for damages or losses suffered by third parties. 4.5 When a Party indemnifies any member of Chevron Group or Operator Group against Claims, the indemnifying Party shall defend, and hold the indemnified Party harmless against those Claims and against all reasonable costs, expenses and fees of any kind (including attorneys' fees) incurred by indemnified Party in defending those Claims, and any tax imposed on the indemnified Party as a consequence of receiving a payment under this Section 4. 4.6 A Person seeking to rely on an indemnity has the right to reasonably object to counsel selected by the indemnifying Party and select alternative counsel at the cost of the indemnifying Party. 5. CHEVRON RELEASE 5.1 RELEASE. In exchange for the consideration that Operator is providing under this Agreement, Chevron on behalf of itself and its Affiliates waives any right it holds to submit public comments, appeal, seek judicial or regulatory review, or otherwise interfere with Operator's permitting efforts for the Facility. 6. MUTUAL RELEASE AND INDEMNITY BETWEEN OPERATOR AND RELEASED CONTRACTORS 6.1 RELEASE, DEFENSE AND INDEMNITY OBLIGATIONS. Operator releases, defends and indemnifies each member of Released Contractor Group against all Claims in relation to the following: (A) Injury, death or disease of any employee or personnel of a member of Operator Group where the injury, death or disease arises out of this Agreement or the Released Contractor's contract. (B) Damage to or loss of Operator Group's Property, where the damage or loss arises out of this Agreement or the Released Contractor's contract. Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 7 6.2 Operator shall include a provision substantially similar to this Section 6 in its contracts with Subcontractors whereby Subcontractors assume similar release, defense and indemnity obligations in favor of each member of a Released Contractor Group. 6.3 Chevron incurs no obligation under this Section 6 to Operator, any Released Contractor or any other Person. Operator defends and indemnifies Chevron from any Claims arising out of this Section 5. 6.4 Chevron shall, upon request, provide Operator reasonable assistance and information so that Operator may verify that Chevron's other contractors entering the Property identified in writing by Operator are Released Contractors as defined in Section 6.1. Operator has the right to exclude from the Property the personnel and/or real property of any of Chevron's other contractors that cannot be confirmed to be members of a Released Contractor Group or have not executed a separate mutual hold harmless agreement ("MHHA") with Operator on terms acceptable to Operator. Operator shall not unreasonably exclude any of Chevron's other contractors, and if requested, shall specify the reason for any exclusion in writing. Notwithstanding the foregoing, Chevron shall have the right to require Operator to allow the personnel and/or real property of a contractor that is not a Released Contractor or member of a Released Contractor Group or has not signed a MHHA access to the Property by notifying Operator in writing that Chevron agrees that such other contractor will be deemed to be a member of Chevron Group for purposes of Section 5.2 of this Agreement. Chevron incurs no other obligation under this Section 5 to Operator, any Released Contractor or any other Person. Operator indemnifies Chevron against any Claims arising out of this Section 5, except where such other contractor has been deemed a member of Chevron Group, in which case the provisions of Section 5.2 shall apply. 7. INSURANCE 7.1 Insurance Required of Operator. Operator shall maintain the following insurance and all other insurance required by applicable law. Nothing contained under Section 7, nor the actual amounts of insurance maintained by Operator or its Subcontractors, shall limit or reduce Operator's liability and indemnity obligations under this Agreement. (A) Workers' Compensation and Employer's Liability Insurance as prescribed by applicable laws in the State of Colorado. (B) Commercial General Liability (Bodily Injury and Property Damage) Insurance, including the following supplemental coverages: Contractual Liability to cover the liabilities assumed in this Agreement; Products and Completed Operations; Explosion, Collapse and Underground Hazards; and Sudden and Accidental Pollution. The policy limits must not be less than US$10,000,000 or its currency equivalent per occurrence. (C) Automobile Bodily Injury and Property Damage Liability Insurance extending to all vehicles utilized by Operator Group in connection with the installation, construction, and operation of the Facility. The policy limits for this insurance must be the higher of the amount required by applicable laws or US$1,000,000 or its currency equivalent combined single limit per occurrence. Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 8 8. GOVERNING LAW AND RESOLUTION OF DISPUTES 8.1 Governing Law. This Agreement is governed by and interpreted in accordance with the law of the State of Colorado, without regard to its choice of law rules, except that the substantive and procedural rules of the Federal Arbitration Act, 9 U.S.C. §§ 1-16 govern Section 8.2 (Resolution of Disputes). 8.2 Resolution of Disputes. The Parties shall exclusively and finally resolve any dispute between them using direct negotiations, mediation, and arbitration as set out in this Section 8.2. If any dispute arises out of this Agreement, either Parry may initiate the dispute resolution process by giving notice to the other Party. If a dispute cannot be resolved by direct negotiation, either Party may initiate mediation by giving notice to the other. Mediation must be attended by a representative from each Party with decision -making authority. All mediation fees and costs must be paid equally and each Party shall bear its own attorneys' fees and costs in connection with such mediation. If the Parties fail to resolve the dispute through mediation, or if absent an agreement between the Parties on an alternative schedule for the mediation, the dispute remains unsolved after 90 days from the date of written notice initiating the dispute resolution process, either Party may initiate binding arbitration. The place of mediation and arbitration must be in the State where the Property is located. One arbitrator (or 3 arbitrators if the monetary value of the dispute is more than US$5,000,000 or its currency equivalent, or if there is a dispute whether the monetary value exceeds the US$5,000,000) will conduct the arbitral proceedings in accordance with the then existing Commercial Arbitration Rules of the American Arbitration Association ("AAA"). The arbitrator(s) must be appointed as provided in the AAA Commercial Arbitration Rules. The maximum number of witnesses each Party may call to give evidence is 3 witnesses of fact and 1 expert witness. The arbitration award is final and binding, and must be issued within 90 days from completion of the arbitration hearing. Regardless of which Party prevails, all arbitration fees and costs must be paid equally and each Party shall bear its own attorneys' fees and costs in connection with such arbitration. The Parties waive irrevocably their right to any form of appeal, review, or recourse to any court or other judicial authority under any applicable law to the extent that such waiver may be validly made. Proceedings to (A) preserve property or seek injunctive relief, or (B) enforce an award under this Section 8.2, may be brought in any court of competent jurisdiction. 9. TERM 9.1 This Agreement, and the rights and benefits granted and created herein shall be effective as of the Effective Date and shall continue in full force and effect for as long as: (i) Chevron conducts oil & gas operations and completes any reclamation activities required under applicable law on the Adjacent Lands; or (ii) Operator operates the Facility and completes all reclamation and/or remediation activities required under applicable law, whichever occurs later. 10. GENERAL PROVISIONS 10.1 Compliance Obligations. (A) Conflict of Interest. No member of Operator Group will, in connection with this Agreement (1) give to or receive from any director, employee, or agent of Chevron Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 9 or its Affiliates, any gift, entertainment, or other benefit of significant cost or value, or any commission, fee, or rebate, and (2) enter into any business arrangement with any director, employee, or agent of Chevron or its Affiliates (other than as a representative of Chevron or its Affiliates) without Chevron's prior written consent. (B) Pre -Contract Violations, Reporting Violations, and Termination. Operator represents and warrants that no event has occurred prior to the Effective Date, which if it had occurred after the Effective Date, would be a violation of Section 10.1(A) (Conflict of Interest). Operator shall immediately notify Chevron of any violation of Sections 10.1(A) or 10.1(B) . Notwithstanding any other contrary provision of this Agreement, Chevron may terminate this Agreement at any time with immediate effect for any violation of Sections 10.1(A) or 10.1(B). (C) Records and Inspection. Up until 24 months from the end of the calendar year in which this Agreement is executed, (1) Operator shall ensure that all members of Operator Group retain all Records related to this Agreement (or until expiration of the statute of limitations for taxes or import or export charges), and (2) Chevron may inspect at any time all Records to confirm that the requirements of this Agreement are met. 10.2 Taxes. Each Party is responsible for all liabilities or Claims for taxes that any taxing authority may assess or levy against that Party relating to this Agreement. 10.3 Prior Agreements. This Agreement constitutes the entire agreement and understanding between the Parties and supersedes all prior and contemporaneous representations, agreements, understandings, and commitments between the Parties concerning the subject matter of this Agreement. Each of the Parties expressly warrants and represents that no promise or agreement not contained in this Agreement has been made to it, and none of the Parties are relying upon any statement or any representation of any Party or any agent of any Party that is not contained in this Agreement. 10.4 Amendments. No amendment to this Agreement is effective unless made in writing and signed by authorized representatives of all Parties. 10.5 Notices. All notices must be in writing and delivered by mail (postage prepaid), email, or by a recognized courier service to the appropriate Party's address set out in this Agreement. Email notices must clearly state that it is a notice given under this Agreement. Notice given under Section 6 must be delivered by mail or by a recognized courier service, not by email. Notices are effective when received by the recipient during the recipient's regular business hours. Each Party may change the contact information for notices by notice to the other Party. 10.6 Counterparts. The exchange of counterpart signature pages between the Parties constitutes execution and delivery of this Agreement and it will not be necessary that the signatures of all Parties be contained on any one counterpart. No Party will be bound to this Agreement unless and until all Parties have executed a counterpart. Executed signature pages sent by facsimile, email scan, or otherwise by photocopy are valid means of delivery. Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 10 10.7 Severability and Savings. If any provision (or part of a provision, as applicable) of this Agreement is determined to be invalid or unenforceable by a court or arbitrator of competent jurisdiction, the invalidity or unenforceability will not affect the other provisions of this Agreement, and all provisions not affected by such invalidity or unenforceability will remain in full force and effect. The offending provision (or part of the provision, as applicable) will be modified to be valid and enforceable while achieving to the greatest possible extent, the economic, legal, and commercial objectives of the invalid or unenforceable provision. 10.8 Fiduciary Relationship. The Parties acknowledge and agree that Chevron will not for any reason be considered to have a fiduciary relationship with Operator. 10.9 Binding Effect. This Agreement will be binding on and inure for the benefit of the rightful successors and permitted assigns of the Parties. 10.10 Assignment and Transfer. (A) By Operator. Operator shall promptly notify Chevron of any transfer of its interest in the Property and shall provide a copy of this Agreement to any and all transferees. (B) By Chevron. Chevron may, at any time, assign or transfer all or part of its rights or obligations under this Agreement to any person without Operator's consent. 10.11 Third Party Beneficiaries. Except as otherwise expressly stated, any person who is not a Party to this Agreement does not have any rights under this Agreement nor may such person enforce any provision in this Agreement. 10.12 Construction. Each Party has participated in the preparation of this Agreement and has had the opportunity to consult with legal counsel and any other advisors of its choice to its satisfaction regarding the terms and provisions of this Agreement. Each Party bears its own costs incurred to prepare this Agreement. As a result, the rule of construction that an agreement be construed against the drafter will not be asserted or applied to this Agreement. 10.13 Confidentiality. The terms and conditions of this Agreement are confidential and may not be disclosed by any Party (or by their attorneys or by others acting through, under or in concert with such Party) to any other person or entity without the express written consent of the other Party except for disclosures (A) to each Party's respective officers, directors, managers, members, employees and those of its Affiliates; (B) to any attorneys, accountants, insurers and auditors of each Party; (C) to Subsequent Operators and prospective purchasers in accordance with Section 10.10; (D) as is required by court order; (E) as reasonably necessary to enforce or interpret this Agreement; or (F) as otherwise required by law The remainder of the page intentionally left blank. Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 11 IMPORTANT NOTICE: THIS AGREEMENT CONTAINS PROVISIONS REGARDING INDEMNITIES AND WARRANTIES THAT EXPRESS THE AGREEMENT OF THE PARTIES CONCERNING CLAIMS ARISING OUT OF THIS AGREEMENT. The Parties have executed this Agreement as evidenced by the following signatures of authorized representatives of the Parties: CHEVRON: OPERATOR: NOBLE ENERGY, INC. COLORADO SAND COMPANY Signature: Signature: Name: Title: Attorney -In -Fact Date: AGREEMENT NOTICES Brian DeRose Attention: Surface Land Manager Email: brian.derose@chevron.com Address: Noble Energy, Inc. 1099 18th Street, Suite 1500 Denver, CO 80202 Name: David Patterson Title: Co -President Date: AGREEMENT NOTICES Brady Reece Attention: Chief Commercial Officer Email: breece@capitalsand.com Address: Colorado Sand Company II, LLC 2001 Kirby Drive Suite 360 Houston, TX 77019 Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 12 EXHIBIT A - LEGAL DESCRIPTION Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 13 ALL OF SECTIONS 2, 3, 10, 11, 14, AND 15, TOWNSHIP 5 NORTH, RANGE 63 WEST AND THE SOUTH ONE-HALF OF THE SOUTH ONE-HALF (S1/2 OF THE S1/2) OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST OF THE 6TH PRINCIPAL MERIDIAN, COUNTY OF WELD, STATE OF COLORADO, BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: BASIS OF BEARINGS: THE WEST LINE OF THE SOUTHWEST ONE -QUARTER OF SAID SECTION 15 AS MONUMENTED AT THE SOUTHWEST CORNER OF SAID SECTION 15 BY A 3 INCH ALUMINUM CAP ON #6 REBAR STAMED "LS 4845," FROM WHICH THE WEST QUARTER CORNER OF SAID SECTION 15 AS MONUMENTED BY A 3 INCH ALUMINUM CAP ON #6 REBAR STAMPED "LS 7242, 1990" BEARS 1404'39'2TV A DISTANCE OF 2,641.96 FEET, WITH ALL BEARINGS SHOWN HEREON RELATIVE THERETO. BEGINNING AT SAID SOUTHWEST CORNER OF SAID SECTION 15, TOWNSHIP 5 NORTH, RANGE 63 WEST AS SHOWN ON THE LAND SURVEY PLAT DATED 2024 FILED IN THE WELD COUNTY CLERK AND RECORDERS OFFICE UNDER RECEPTION NUMBER 4940341; THENCE NO4'39'27"W, A DISTANCE OF 2,641.96 FEET ALONG SAID WEST LINE OF THE SOUTHWEST QUARTER TO SAID WEST QUARTER CORNER OF SECTION 15; THENCE N04°38'14"W, A DISTANCE OF 2,642,40 FEET ALONG THE WEST LANE OF THE NORTHWEST QUARTER TO THE NORTHWEST CORNER OF SAID SECTION 15; THENCE NOD°54'11"W, A DISTANCE OF 2,642,05 FEET ALONG THE WEST LINE OF THE SOUTHWEST QUARTER TO THE WEST QUARTER CORNER OF SAID SECTION 10; THENCE N00"54'36"W, A DISTANCE OF 2,642,40 FEET ALONG THE WEST LINE OF THE NORTHWEST QUARTER TO THE NORTHWEST CORNER OF SAID SECTION 10; THENCE NOD"48'02"W, A DISTANCE OF 2,639.14 FEET ALONG THE WEST LINE OF THE SOUTHWEST QUARTER TO THE WEST QUARTER CORNER OF SAID SECTION 3; THENCE NOT48'34"W, A DISTANCE OF 2,652.06 FEET ALONG THE WEST LINE OF THE NORTHWEST QUARTER TO THE NORTHWEST CORNER OF SAID SECTION 3, TOWNSHIP 5 NORTH, RANGE 63 WEST; SAID POINT ALSO BEING THE SOUTHWEST CORNER OF SAID SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST; THENCE NO1'14'00"W, A DISTANCE OF 1,323.01 FEET ALONG THE WEST LINE OF THE SOUTHWEST QUARTER OF SAID SECTION 34 TO THE NORTHWEST CORNER OF THE SOUTH HALF OF THE SOUTH HALF (S1/2 OF THE S1/2) OF SAID SECTION 34; Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 14 THENCE DEPARTING SAID WEST LIME OF THE SOUTHWEST QUARTER OF SAID SECTION 34 N89°17'34"E, A DISTANCE OF 2,639.04 FEET ALONG THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2 OF THE 51/2) OF SAID SECTION 34 TO THE CENTER -SOUTH (C -S) 1/16TH CORNER OF SAID SECTION 34; THENCE N891.7'14"E, A DISTANCE OF 2,633.94 FEET ALONG SAID NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2 OF THE S1/2) OF SAID SECTION 34 TO THE NORTHEAST CORNER OF THE SOUTH HALF OF THE SOUTH HALF (S1/2 OF THE S1/2) OF SAID SECTION 34; THENCE S00°50'34"E, A DISTANCE OF 1,330.01 FEET ALONG THE EAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST; SAID POINT ALSO BEING THE NORTHWEST CORNER OF SAID SECTION 2, TOWNSHIP 5 NORTH, RANGE 63 WEST; THENCE N89 °21'07"E, A DISTANCE OF 2,631.92 FEET ALONG THE NORTH LINE OF THE NORTHWEST QUARTER TO THE NORTH QUARTER CORNER OF SAID SECTION 2; THENCE N89°23'04'"E, A DISTANCE OF 2,630.63 FEET ALONG THE NORTH LINE OF THE NORTHEAST QUARTER TO THE NORTHEAST CORNER OF SAID SECTION 2; THENCE S01°11'04"E, A DISTANCE OF 2,641.81 FEET ALONG THE EAST LINE OF THE NORTHEAST QUARTER TO THE EAST QUARTER CORNER OF SAID SECTION 2; THENCE S01°11'04"E, A DISTANCE OF 2,655.08 FEET ALONG THE EAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 2; THENCE SO1°41'22"E, A DISTANCE OF 2,634.57 FEET ALONG THE EAST LINE OF THE NORTHEAST QUARTER TO THE EAST QUARTER CORNER OF SAID SECTION 11; THENCE SO1°41'22"E, A DISTANCE OF 2,.634,57 FEET ALONG THE EAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 11; THENCE S00°22'20"E, A DISTANCE OF 2674.74 FEET ALONG THE EAST LINE OF THE NORTHEAST QUARTER TO THE EAST QUARTER CORNER OF SAID SECTION 14; THENCE S00°24'04"E, A DISTANCE OF 2,675,41 FEET ALONG EAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 14; THENCE S89°53'22"W, A DISTANCE OF 2,559.09 FEET ALONG THE SOUTH LINE OF THE SOUTHEAST QUARTER TO THE SOUTH QUARTER CORNER OF SAID SECTION 14; THENCE S89°36'11"W, A DISTANCE OF 2,558.71 FEET ALONG THE SOUTH LINE OF THE SOUTHWEST QUARTER TO THE SOUTHWEST CORNER OF SAID SECTION 14; THENCE S89°44'28"W, A DISTANCE OF 2,561.33 FEET ALONG THE SOUTH LINE OF THE SOUTHEAST QUARTER TO THE SOUTH QUARTER CORNER OF SAID SECTION 15; Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 15 THENCE 589°45"32"W, A DISTANCE OF 2,561.71 FEET ALONG THE SOUTH LINE OF THE SOUTHWEST QUARTER TO THE POINT OF BEGINNING. SAID DESCRIBED PERMIT PARCEL OF LAND CONTAINS 3,94756 ACRES, MORE OR LESS (+), AND IS SUBJECT TO ANY RIGHTS- OF -WAY OR OTHER EASEMENTS OF RECORD OR AS NOW EXISTING ON SAID DESCRIBED PARCEL OF LAND. ALL BEARINGS ARE GRID BEARINGS OF THE COLORADO STATE PLANE COORDINATE SYSTEM, NORTH ZONE, NORTH AMERICAN DATUM 1983/2011. THE LINEAL DIMENSIONS AND AREAS AS SHOWN HEREIN ARE GROUND DISTANCES AND GROUND AREAS BASED ON THE "U.S. SURVEY FOOT." TO GET GRID DISTANCES MULTIPLY SHOWN DISTANCE BY 0.94974226. ALL REFERENCES TO ALIQUOT CORNER MONUMENATION IS DESCRIBED ON THE LAND SURVEY PLAT DATED 2024 FILED IN THE WELD COUNTY CLERK AND RECORDERS OFFICE UNDER RECEPTION NUMBER 4440341; Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 16 EXHIBIT B - FACILITY SPECIFICATIONS Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 17 .. LAND SURIM* FIAT PM. .9 ^ PART OF 732E 4011%,WHE•1141.4 GF 6ECT14441. 4ba140fb 6 x41444 WAKE 63.114341. 6TIH PIA SE0114143a. 3 11.10. fi, 4 96, TOINS!.0 NORM.161113E i611FST 6'114!9A r r a own 1 - . 0 1Te1.4 c0um. 041.41100 w . n r R • �� SISEISSAINSIMSt SIC 14, - MNMN86T 4 w w - n r . w _I .'. ^",''' ....wrw T;;=: ::=47. I Hn(f; _ r . . � No.. EE .. R. E. -E .7 .+C,^,== -- •—, � 414043.311.1.4,41 - rcTa@iPS de 3 j 460.6 - Mt1664x" -- Tb;M. pdalr. en f a ftSViR ,. :. . - (sap' ,..P (stew >f . do - mall.. - sac ss ass's a - - AaR1A616PTAa .®m MUT it F MEW t1. .w.....,,,=r -. +omo..,ze. - WO m e N TAN Mira y:� •r w -" x ` - ,w..>.2w. ,% — MOW d1 4 i8H8FT Y! _.._. a = T mss ."� ��.ae a ss�arra — 7'.a. ` 9 9. . ...1,..1.......n... .n. , .. .,....1... x,744 r T.41- ss » ,s . w _ . 1.�. _ 6 insaar r : `d-rrse- ,. «,w .._.... ... � .. �. _.._ __ r ._ _ r ,., ��.� • �.. .....•......,.......,............,.................r r""?�Ws.: mc�rm: r�s:6 ^»�` = _... ,•«. k . ....� • _ .. r _... »,.. r. .rri .,,.r=.. �r.wwr»., '..Zr=- �....�.....-} -�` ^'3T.:^�,...r-y. ''A"".. —n..== .._- — ww. w •wwwww. _ = �= ��ti �- re= ._ zg 4k.,..---- ._ - Preliminary .. "mw• .X.7",r.,w.r. "A7 i°'J"".. i`.iXe `. 1�w-1„ ' .3 01110/2024 !:6&9111.1 r. ^ �••�- - ===.;tom zsx, � :.. =s- � � "..11 �' `wwa M ....r. w. .:� . ...sue :^ . r � R = 47^=a ..,.,2s,,._,74,4 --..w • . , .._ , ...,...,...=, � -1�at. y_,aArt_ __ selarlo9rA2. =_ »,.,.1�' .,Y, p r MO r +' lit 9 1• 'r.6wa69m1crrla� Al s 7'�n a Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 18 LAND SURVEY PL AT VART of Int B(NALN C•tt PALA Of MOION].. IPM,51.P8 WAN OW*Sl WEST 4LN R4 BECTON'S. 2. 8, It, 70. 41.8 Id, IMANNAP 3 NERTN RAND[ B9 WEST 571 11.1.1 N WELDCOUTY COLORADO t � w - ....• a— -- kmnYlalibfr moo....—...•katr--.-�. r.-..�P • I t :47-,.....,,--_,...--...,....-----_,,,;_-_,-_-_, Preliminary .1PLe57.IWWII 6ANDslmVLY RAT Mr.,:Yl M �.• L1R �. i• PP •.... Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 19 a I k SEC 27 rC 1v 86314' hrtrrv/( LAND SURVEY PLAT sA0.1 P1 NE SSOUTK OME,KM.P Of'SEC2qu K TOMCM> B MOAN. MMGE 53 WEST 4tu R M SEC,VMS 2. a. .1 TO M A 15 TO MypP5 NCM7H RAMIE B] WEST BM PM x110GA TV crux M* SEC ;34 I n V ,RC'3 W IrKetre MMOS4 SPX' 38 MN R63FY .SR/ // {.�•.P _— -r !.I A 75 Al R .?jy p.o:.7-4- 1. 1 SE,C .45 re n. toss W I 14,zit 7.7f Preliminary 0,1,494400 Lcler • 1 V[u gmvem.v yund44 I AND S1:RVF1 PRAT Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 20 TE N T5 N- S EC 4 T5 N lieSTY e yS�.'Cp �34 7 ' N ! 4L! k� •— 1L . AAA. LAND SURVEY PLAT .Akr OF TH5 sauTNi]!2•HALF OF 5E[Tpn ii 10.41...5 NORSK ROCA 53 NEST Oft.F Y SCEM& O. WS O. TOMAH..5 NORTH, RANDE W WEST 5TH PM AA AA car. ArV 3 04a., mwoosam == i COLLAADD TE _... T5 rr.ay.4-7 NU. 1 S 3 T5 R54sFf' ..., .. a.IT SE1/d NO. 1 ;..�..C FC 2 T5 N. R63 or SEC10 TS A, RS.Ufri rxn-now, • Preliminary EMMY;.mR e 41.4.0.0® NNW.. „ ,.�wm,.M. 1.1 i WEiNNthyEtE6FTd OM WIRO. 0 op 5 Wu •e.ullii*wiovao 1 A55)51e11FFT MAT „h.r,.� .,,... aOl Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 21 LAND SURVEY PLAT :Act; wct;\\I SEC & PART aA 1 4 60,-6.60.41ALR 0666[661Ntowslo6 N]RT11. mow 61 vest. 61.110 Y 6EU110f✓s 2.1. 11 16 11.816 TOYxIB1NR 5 NORTH 66110E 66 WIEST 6TH RAI -Nelacosulr. G04.06.<6, �\ NW1/4 / SFr: 17 T5N R63i SEC 10 716N R53W =. �,„ ,,.'may; I 11 - Amrt. SFr 11 '115+V kF,':3W Preliminary WPM TAM e 6, rF • 1 ATM 5161,61 NAT Iv o Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 22 LAND SURVEY PLAT L f1V,/v�� war O871!®rsimeil.4 ALF Ofm moron XL TOWNSMa6 WV.'ANCE6i WEST. aflI GW NAT: 6ECTON&2.3, 11 NI 11.8 TS TOARMiP S NORTH, RANGE 61 WEST 6TH PM WELDCOLOM COLORADO 4� aad II l NiFI /"4 F,`PC' 16 T5.V h'F3Pr .w, ,..,P.=1"' A ya NF.1 /4 + 1 SRC 17 1 T5N R613W .� ..1 ..1,1=7 / `.v... > r, 22 T5+'r R;'3e1 ire C W Preliminary W.. 1.41 e A." .��a,....,,.. • 011.24461.46.1 rMILL.• W.11.100.1.1 $1. < wou nuadw1.IWM.16 Atm KA F1 RAT ,....in.w.,..wr ...,� v Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 23 LAND SURVEY PLAT SEC PMT 4K 71E RODIH P&HAI.R aRCTI0M 9..TOyNrhPP WRTY. Pa}Ifil43 NOT GIMPY ,� EC 35 BECTON&S. S. i1, M. H. 8'FR TOPR191NP 3 NOM RAKOER3WEBT B7H RAI i1 C7 ,V a`�fk PKLDCCWTr, COLORADO NO. d S'E'C .2 Tc"Ai k&3W �I NO 3 J =4f „- ---- --,-. �..--. �-- -1 SF.C` F 7 7 .. T5 R.5.3FY ' -=,. =tar.' _ S T5AI Rf3W aL- 9 NO 7 JE1/4 a• • W..... W.. o k +tH N...4ar!..40.I9 fi EC I gals T5hI R63W t i l�� Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 24 rPc.cc-nw Preliminary «gin7 MPet nlAir� M �� Fr 10 T 5 N R63W SEt' C Tt.l eV Hf13 * .461.117,. LAND SURVEY PLAT our of n! 69UTM GV! MALF of SEM..3. ia..wst o a noarn. PAK* 03 west arww o u BEove& ]. J, IA MI ICA 15 TC1.&5111,5M1MTM ROME E] WEST STH PA1 vatOcCome ooLCA.X, WW1/ -1 sari 5u. .1 PO _ Y , 1elet're.�,... «4..- SEr 11 T5 -1V R6.stif 'a( I'r'1 t -.724 Icc SEC 1 -m 1 4 T5 AT R6r1i€r me ¢c- r SET 12 T5 N R63 W Preliminary e4wtan.,aIaow wYf..li.rtlOB ouas.roa.r wa.,...iwedreizefievon *w S .vo. Hr..w,uwrwwaxsa ANTIWIKII PUT 114140,44414.44411.0. 14.91141.1,11.011.14.1.4.4.4 '411 A 44 Hn.�.i..0.4. Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 25 LAND SURVEY PLAT f* aFnr Of 114 souNos ..at Of 56Cran x 70,4100,0 nONt'n. ow.* 63 web -rich, w BECTYOng2.3,Y,T0 11.815 TOVM6HP 5 MATH, RAMIEB] HEST 6TH PEA I 'f ;'S ,11 I ;C; i 15 KLOCOUNT,. COLD .00 At r t, 4\1" t� ma PpW ni.!11 arwr 'j SEC 7 a 1 H1,-1 i Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 ,YYrL m•..w au�.hww+ NV S EC 1 T5 Al R61if E}; '4 I A ;e C.3 26 44tC.CC" • S EC,' 13 T5 R63 FY Preliminary PR,q KwIW fOloolac • G n• �A c-"e,yrtw • t unrnpr4`YM" OY[WMw1•••4 W� r•••••clp. •`+rC 6 1R1 'e+CY*+w4+4W0o'RP �.awi" �sw..m,rmwn � AMIS1.4VP1 PLAT ,m..� ••,:pL EXHIBIT C - DESCRIPTION OF ROAD Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 27 ACCESS ROAD EASEMENT 1 AN ACCESS ROAD EASEMENT, BEING 25 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE, LOCATED IN SECTIONS 22, 27, AND 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6T" PRINCIPAL MERIDIAN, WELD COUNTY, COLORADO, BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: COMMENCING AT THE NORTHWEST CORNER OF SAID SECTION 22, AS MONUMENTED BY A FOUND 3-1/4" ALUMINUM CAP ON NUMBER 6 REBAR STAMPED "LS 10855, 1997," WHENCE THE NORTHEAST CORNER OF SAID SECTION 22, AS MONUMENTED BY A FOUND 2-1/2" ALUMINUM CAP ON NUMBER 6 REBAR STAMPED "LS 9644, 1995," BEARS NORTH 89°21'58" EAST A DISTANCE OF 5,346.70 FEET, BEING THE BASIS OF BEARINGS IN THIS DESCRIPTION. THENCE ALONG THE NORTH LINE OF THE NORTHWEST QUARTER OF SAID SECTION 22 NORTH 89°21'58" EAST, A DISTANCE OF 1,362.64 FEET TO THE POINT OF BEGINNING 1(POB 1); THENCE DEPARTING SAID NORTH LINE OF THE NORTHWEST QUARTER SOUTH 04°12'29" WEST, A DISTANCE OF 408.77 FEET; THENCE SOUTH 00°26'01" EAST, A DISTANCE OF 1,112.82 FEET; THENCE SOUTH 0l°04'49" EAST, A DISTANCE OF 977.55 FEET; THENCE SOUTH 04°55'15" EAST, A DISTANCE OF 310.38 FEET; THENCE SOUTH 01'24'54" EAST, A DISTANCE OF 725.75 FEET; THENCE SOUTH 03°40'51" EAST, A DISTANCE OF 230.00 FEET; THENCE 242.55 FEET ALONG A CURVE TO THE LEFT HAVING A RADIUS OF 268.00 FEET AND A CENTRAL ANGLE OF 51°51'20" (CHORD BEARS SOUTH 29°36'31" EAST, A DISTANCE OF 234.36 FEET); THENCE SOUTH 55°32'10" EAST, A DISTANCE OF 1,097.60 FEET; THENCE 358.64 FEET ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 370.00 FEET AND A CENTRAL ANGLE OF 55°32'10" (CHORD BEARS SOUTH 27°46'05" EAST, A DISTANCE OF 344.76 FEET); THENCE SOUTH 03°13'21" EAST, A DISTANCE OF 1,671.96 FEET; THENCE SOUTH 05°36'03" EAST, A DISTANCE OF 1,103.93 FEET; THENCE SOUTH 06°10'05" EAST, A DISTANCE OF 1,104.87 FEET; THENCE SOUTH 07°42'00" EAST, A DISTANCE OF 1,210.07 FEET; THENCE SOUTH 07°45'22" EAST, A DISTANCE OF 636.71 FEET; THENCE SOUTH 06°28'24" EAST, A DISTANCE OF 490.36 FEET; PAGE 1 OF 3 Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 28 THENCE 233.44 FEET ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 332.00 FEET AND A CENTRAL ANGLE OF 40°17'10" (CHORD BEARS SOUTH 13°40'11" WEST, A DISTANCE OF 228.66 FEET); THENCE SOUTH 33°48'46" WEST, A DISTANCE OF 1,368.81 FEET; THENCE 94.05 FEET ALONG A CURVE TO THE LEFT HAVING A RADIUS OF 135.00 FEET AND A CENTRAL ANGLE OF 39°54'57" (CHORD BEARS SOUTH 13°51'18" WEST, A DISTANCE OF 92.16 FEET); THENCE SOUTH 06°06'11" EAST, A DISTANCE OF 115.29 FEET; THENCE SOUTH 10°56'56" EAST, A DISTANCE OF 572.33 FEET; THENCE SOUTH 16°49'13" EAST, A DISTANCE OF 459.88 FEET; THENCE SOUTH 20°52'15" EAST, A DISTANCE OF 352.88 FEET; THENCE SOUTH 46°56'36" WEST, A DISTANCE OF 89.73 FEET; THENCE SOUTH 43°00'58" WEST, A DISTANCE OF 437.74 FEET; THENCE SOUTH 45°21'39" WEST, A DISTANCE OF 319.42 FEET TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, S1/2) OF SAID SECTION 34 AND THE POINT OF TERMINUS 1(POT 1), FROM WHICH THE SOUTH 1/16T" CORNER OF SAID SECTIONS 33 AND 34, AS MONUMENTED BY A 3-1/4" ALUMINUM CAP ON A 30" NUMBER 6 REBAR, BEARS SOUTH 89°19'34" WEST, A DISTANCE OF 1,968.42 FEET. SAID EASEMENT CONTAINING 786,275 SQUARE FEET OR 18.05 ACRES, MORE OR LESS, ALSO BEING 15,725.5 FEET OR 953.1 RODS. GRID DISTANCES ARE BASED OFF U.S. SURVEY FOOT PER COLORADO NORTH STATE PLATE (NAD83) NORTH ZONE. SIDELINES OF SAID EASEMENT TO BE TRIMMED OR EXTENDED TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, S1/2) OF SAID SECTION 34. TOGETHER WITH: ACCESS ROAD EASEMENT 2 AN ACCESS ROAD EASEMENT, BEING 25 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE, LOCATED IN SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6T" PRINCIPAL MERIDIAN, WELD COUNTY, COLORADO, BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: COMMENCING AT SAID NORTHEAST CORNER OF SAID SECTION 22; THENCE SOUTH 11°12'34" EAST, A DISTANCE OF 14,227.55 FEET TO THE POINT OF BEGINNING 2 (POB 2); THENCE SOUTH 50°27'13" EAST, A DISTANCE OF 119.24 FEET; THENCE SOUTH 56°06'26" EAST, A DISTANCE OF 163.79 FEET; THENCE SOUTH 61°11'48" EAST, A DISTANCE OF 244.44 FEET; PAGE 2OF3 Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 29 THENCE SOUTH 62°16'17" EAST, A DISTANCE OF 185.58 FEET; THENCE 365.36 FEET ALONG A CURVE TO THE LEFT HAVING A RADIUS OF 374.00 FEET AND A CENTRAL ANGLE OF 55°58'22" (CHORD BEARS NORTH 89°44'32" EAST, A DISTANCE OF 351.01 FEET); THENCE NORTH 61°30'29" EAST, A DISTANCE OF 141.08 FEET; THENCE 101.49 FEET ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 77.00 FEET AND A CENTRAL ANGLE OF 75°31'05" (CHORD BEARS SOUTH 80°43'59" EAST, A DISTANCE OF 94.30 FEET); THENCE SOUTH 42°58'26" EAST, A DISTANCE OF 107.57 FEET; THENCE SOUTH 35°18'08" EAST, A DISTANCE OF 226.60 FEET TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, Sl/2) OF SAID SECTION 34 AND THE POINT OF TERMINUS 2 (POT 2), FROM WHICH THE SOUTH 1/16Th CORNER OF SAID SECTIONS 34 AND 35, AS MONUMNETED BY A 3-1/4" ALUMINUM CAP ON A 30" NUMBER 6 REBAR, BEARS NORTH 89°17'14" EAST, A DISTANCE OF 1,332.86 FEET. SAID EASEMENT CONTAINING 82,760 SQUARE FEET OR 1.90 ACRES, MORE OR LESS, ALSO BEING 1655.1 FEET OR 100.3 RODS IN LENGTH. GRID DISTANCES ARE BASED OFF U.S. SURVEY FOOT PER COLORADO NORTH STATE PLANE (NAD83) NORTH ZONE. SIDELINES OF SAID EASEMENT TO BE TRIMMED OR EXTENDED TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, Sl/2) OF SAID SECTION 34. I, BRANDON MOSER, COLORADO PROFESSIONAL SURVEYOR IN THE STATE OF COLORADO, DO HEREBY CERTIFY THAT THIS DESCRIPTION AND THE FIELD SURVEY ON THE GROUND UPON WHICH IT WAS BASED WERE PERFORMED BY ME OR UNDER MY DIRECT SUPERVISION. THIS DESCRIPTION WAS PREPARED FOR AND BEHALF OF PFS, LLC DBA ASCENT GEOMATICS SOLUTIONS. BRANDON MOSER, PLS 38412 PAGE 30F3 Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 30 ATTACHMENT H Exhibit C-1: Relevant Features and Adjoining Surface Ownership C\PWWORKING-TRD\00253924\C. RELEVANT FEATURES A0101 NG SURFACE ERSHIP.DWG-9/11/24 '/® ALL -"4'F'Z'ENX REC. NO, 4146203 WELLS RANCH O-> 530OMART v13vNEAL1 ERC 049 DCPMIDSTRREC NO 2EAM 50 , taco•E2 n2IMI DDKE° a,REC. NO. 321109.5S g E=Eln • STATE OF COLORADO AAA® 401PIPELINE ROW NOBLE MLOSTREAM SERVICES. LLC REDND.,462BB • ACENTERLINE PIPELINE EASEM � — ASSOCIATED NAN., GAS. I REC. NO, 220 • SECTION 9 5, LW RANCH COMPANY 40. PIPELINE ROW NOBLE M�rao a1SERVICES.LLG 101 NATURAL°. PIPELINE NOBLE ENERGY, INC. STATE OF COLORADO 7574 TEN311.‘1 MANCH LC • �1 U cx 55613311 MR N894428w '(m) �o 419 PIPELINE DUKE EB LP REC. NO. 3260959 oo�bSDP DUKE EIZZEFIrLIE=VICES M".""'" SECTION 34 WELLS RANCH (NOT INCLUDED IN PERMIT AREA) CH(zm0.009IR) I sag 9T(.) • REC. NO.3260959 NATURAL OAS 19PELINE I NOB, ENERGY. iNc. PRAIRIE WN (Nort:1 •. 5892111DEz62�°1MRI (I ¢II NATURAL GAS PIPELINE PDC ENERGY INC AAA/A • 50' PIPELINE EASEMENT DD 3, REC NO 3250059 AO I — o RECEIVER SITE EASEMENT DUKE ENERGY FIELD 'IGES LP REC. .3D ATURAL GAS PIPELINE�. • DUI( ' EASEMENT SERVICES _ ,� .3260955 MOBLE �� s COLORADOVARYREGNGWIDTH 426,565ELINE ER LP a DUKE ° DSER SERVICES LP REo E 0. • NATURAL GAS PIPELINE WELLS"NH, NOBLE ENERGY, INC. TOWNPPRAIRIE nl NATURAL GAS PIPELINE NOBLE ENERGY, INC NATURAL GAS PIPELINE °McsTA REAM.PIPELNE LP DUKEINETZ=ETIgES LP PEC. NO. 3015421 CH (2636.69') (R NRs 6246E 2604.011(M) CHZ263o39,m,1 Nee D.PMDSGAS IP�INEs?NDBE�MIDSTR Es`&� arm 6 DU ERGY FIELD SERVICES LP `% e 9D'4� s EC NO 3077384 Fi 50. PIPELINE ROW SO PIPELINE Row DUKE ENERGY FIELD SERVICES 1-REC Y�n2N sLP DUK 000 GY FIELD BLP -fir Noo �51a Fr, r, Nye, \ sEcrrox - CENTERLINE PIPELINE EASEMENT WELLS RANCH 0 I �� WELLS RANCH RFC - p .v DUKE =VICES LP REC NO 2981170 TURAL GAS PIPELINE NOBLE ENERGY. INC RECEIVER SITE DCP MIDSTREAM LP REC NO 3590. DCP MIDSTREAM LP REC NO 33.4.83 z2634211(RI 40 PIPELINE ROW B9 29 (MI NOBLE MIDSTREAM LLC , REC. NO 146 o IS LO CES LP DUKE EC No. 36,722^1 ®ER ELIN 20' PIPELINE Row 61.0=39 87 CH (2631.4 'I (R) N89145'32'9925617 '(MI DUKE OM EBLP WELL PERMIT UMBER 310849 EE NOTE 5 O. PIPELINE ROW NO 3556401 -, NATURAL GAS PIPEL NOBLE ENERG NATURAL GAS PIPELINE NOBLE ENERGY, INC MONITORING WELL PERMIT NUMBER 27029 f70 RANCH LLC WELLS RANCH CH(26600,00'1(R1 N8923 2631.9 °21'0,21 ;a1 _ SEE NOTE 5 WELLS RANCH 0 CH I2640.00'1(R) N8923 263663' NI) 7URAL° PIPELINE LPl • s DGPMIDSTREAM,L DDK REC. NO. 3250959 sLP OLIN EZ:11O 111.13 SE'11AZZES LP REO NO 326096B 50 PIPELINE EASEMENT DUKE ENERGY FIELD SERVICES LP REC NO 3.959 O®A DUKE ENTRPd7F5711=VICES LP REC NO 30773. ®A �GNB939'5, {2630 6 E11( 11,A1 cqc. NO. 4211-,I578 .1‘ GLO=39 86 CH 1263 .759(R) rve93957E '(M) NATURAL GAS NE DCP MIDSTREAM.P g DN DG 21lEs REO. NO 31413021 AAM BERVDEBLP NOBLE ENERGY, INC. C. NO. 3260959 " NATURAL GAS P1PEUNE BONANZA CREEK ENERGY OPERATING COMPANY L 0 TURAL OAS PIPE, INF PDC ENERGY INC NATURAL GAS PIPELINE NOB, ENERGY. INC. ELLS RANCH 53 PIPELINE EASEMENT DUKE ENERGY FIELD SERVICES LP REC. NO 3260959 NATURAL CAS PIPELIN MIDSTREAM, LP o tf cH(.6.711(I OGPmD AM ( 111 . � 2 � NB9�16a46,M1— NATURAL GAS PIPELI DCP MIDSTREAM LP WELL PERMIT NUMBER 319490 PIPELINE ROW ROCKY MOUNTAIN INFRABTRUCNRE. LLC )9 (APPRQ%-LOC NATURAL GAS PIPELINE DCP MIDSTREAM, T5N 0.63W - —WaL5 RANCH B NRAL GAS PIPELINE OPERATING COMPANY LLC PAAA, RAL GAS PIPELINEBONANZA CREEK - - O 3 - OPERATING COMPANY LLC CH(2629.43°1(R) se936 2558.71' (11)urn. 23 i 5N R63W 2Dc sTATE OF COLORADO DOG NATURAL GAS PIPELINE BONANZA CREEK ENERGY OPERATING COMPANYPNuNE '• C. BONAN. CREEK ENERGY ^S OPERATING COMPANY LLC 20. PIPELINE ROW DCP MIDSTREAM.P REC. NO.3537462 =39:84 CH (2629.43')(0.) sens'3Y'W2sSsos'' On) • 0 601WPELINE EASEMENT COLORADO LIBERTY PIPELINE REC. N0,46874,42 • WELLS PARCH • (s WELLS RANCH LLLP C 70 RANCH nc SECTION 20 70 RANCH Ulf Nel. CRUDE TERMINALS LLC PARENT CO ARY/ACQUIInON ENTI DCP OPERATING COMPANY, LP LP DUI< Fl LDS MOE LP SSOCIATED NATIIRALG CORPORATID OBL MIDSTREAM PARTNERS LP CHEVRON CORPORATION COLORADO RN U DS TES PLO PIKE ERG', INC VCO LP GRIM RESOURCES CREE ERGY OPERATI FRASTRUCTURE, LLC 660 990 0 660 1920 9O 660' NOTES 1 PERMIT AREA BOUNDARY RUNS COINCIDEWITH I SECTIONW1/4 OF SECTION" 31,0 PORTION eii4OF SECTION 3, 2 TOTAL AFFECTED AREA:0,018 ACRES, 3 PROPERTY OWNER IS DISPLAYED BENEATH TOWNSHIP AND RANGE DESIGNATION RIE DOG DOWNS FROM MARCH 15, - OCTOBER 31 5ABANDONED FOR LUGGED AND MINE SEQUENCE AREA. NV, LLC 6. DECOMMISSION EXISTING TANKS AND EQUIPMENT PRESENT AT WELLS IN MINE 7. THE PIPELINES 6, WELLS DEPICT THE OPERATING COMPANIES AS USTED IN THE WELD COUNTY RECORDS S. COLORADO ENERGY BCARSON MANAGEMENT COMMISSION DATABASE GAS EXISI1NG BUILDING SECTION DIVIDE EXISTING UNDERGROUND GAS EXISTING ROADWAY EXISTING OVERHEAD ELECTRIC EXISTING EASEMENT PERMIT AREA BOUNDARY EXISTING FENCE SECTION QUARTERS MINOR CONTOUR MAJOR CONTOUR OIL &GAS WELL COLOR LEGEND: / A EK"ER' / &GAS 9 WELL OWNER - NOBLE ENERGY 9 WELL OWNER - U.S. GOLD COMPANY 9 WELLOWNER- UNITEDSTATTESEXPLORATION L NO GAS WELL SYMBOL LEGEND: 01 pi ABANDONED LOCATION IWELL - SHUT IN WELL - v BANDONED # WELL • PRODUCING n WELL- TEMPORARILY ABANDONED SYMBOL LEGEND. - PROPERTY GATES ALAND SUVEYPIATMATIONS ALIQUOT SURVEY CORNER Ei PRAIRIE DOG TOWNS (SEE NO E 41 ® WELL CONSTRUCTED WATER SEPTEMBER 2024 EXHIBIT C-1 COLORADO SAND COMPANY II, LLC KERSEY MINE RELEVANT FEATURES AND ADJOINING SURFACE OWNERSHIP Tac TRC ENVIRONMENTAL CORP. mNx I�3i o3°�o:s a°o,LMa OE IGN BY LOI OP BY GIS 811 ATTACHMENT I Wells Ranch LLLP Structure Agreement Structure Agreement This letter has been provided to you, Wells Ranch LLLP, as the owner of a stock well (Permit Number 319490), stock well (Permit Number 310849), domestic well (Permit Number 3738), a guard station building, guard station security fence, private roads, interior and perimeter fencing, cattle feeders, troughs, water tanks and other structures associated with cattle operation on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable, and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: A. Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or B. Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or C. Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Miring Rule 6.3.12 and Rule 6.4.20). The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with the Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. §34-32.5-115 (4)(e), and with the Hard Rock/Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures have been located on, or within, 200 feet of the proposed affected areas: • Stock Well Permit Number 319490, NW1/4 of the NE1/4 of Section 14, T5N, R63W • Stock Well Permit Number 310849, NW1/4 of the NE1/4 of Section 15, T5N, R63W • Domestic Well Permit Number 3738, NW1/4 of the SW1/4 of Section 2, T5N, R63W (estimated) • Associated piping, water tanks, cattle feeders, and other structures associated with cattle operation located throughout the Wells Ranch property. • All interior and perimeter fencing located throughout and along the Permit area. • Guard Shack, including building and security gate located at the northern property entrance. • Private roads from County Road 68, south, to the mine entrance. Structure Agreement Page 1 of 3 Kersey Mine_112 Reclamation Operation CERTIFICATION The Applicant, Colorado Sand Company II, LLC, by David Patterson, Co -President, does hereby certify that Wells Ranch shall be compensated for any damage from the proposed mining operation to the above structure(s) located on, or within, 200 feet of the proposed affected area described within Exhibit A of the Reclamation Permit Application for the Kersey Mine. File Number M This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration of modification to this form shall result in voiding this form. Structure Agreement Page 2 of 3 Kersey Mine_112 Reclamation Operation NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant: Colorado Sand Company II, LLC Representative Name: Dave Patterson Representative Signature: Date: Title: Co -President STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , by as of My Commission Expires: Notary Public Structure Agreement Page 3 of 3 Kersey Mine_112 Reclamation Operation NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner: Wells Ranch LLLP Representative Signature: Print Representative Name: Representative Signature: Print Representative Name: Date: Title: STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , by as of My Commission Expires: Notary Public Structure Agreement Page 4 of 3 Kersey Mine_112 Reclamation Operation Exhibit A Proposed Mining Location Kersey Mine_112 Reclamation Operation Exhibit B Wells Ranch Structures within Permit Area Kersey Mine_112 Reclamation Operation aamaEsCARlP ox.PA rfiTP'INE LEAS LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. • • . • .. � WELD COUNTY, COLORADO cmc • • • • • • • • • • wesr.,,EETxx.r.ns,,,, u.rmesrsmnvnwraa ss�nox,o,mwTmxmsxwrx, wRsem r—_T_—� . . . SITE. . . • scxsouEsazszcsnloxs. 1 J/f/� SEC 34 TSN, R63W • • �`�yy %�/ • s s .. uP,mucxanwwnnsmsusnxcsccuvnxr roRscuxoavvaxornssxum (SHEET 3)-�SHEET 'NOM . . . J • . . wForaunorv. "'"L''.2E""PTwxs yrre of coEON.on sY.xo,xNnnnx ms ware raxo osranr»Exr .Ex cw..mErvr F.,• rvo. rccssmm•x ;; T5N R . • . • • o • • _ _ mrwmrweTSN `="u`•=°°w. sE sr • • • SOUTH PLATTE INNSNrRass: aRw�w,„—aa, �,,,a„„m,„,o— PROPOSEDLPASP SEC 3 :,-„,-.-,====.x.---------------- SEC 2 • RIVER of �« �x� *�Yw, „ RE mo=o � BO[1NDARY TSN, R63W (SHEET 4) x. n Munn R63Ii T5Nawo�m�6•, (SHEET 7) (SHEET I ill r f ! ! f ! 6Ko„w,aFworuwEM�r„,,F,m�„w13P uown,r n�xraR,rm,. m®. I TI1 VICINIITTYY MAP �wcrwno..rc�w<reniw.rs,cwrea„.v�w..ra. GOER MOTES: SEC 10 ocrnw�., �enx.00„ear F«rmn+u,n rcn T.�\'. R63W SEC 11 TSN R63W_ r ""°`°""'r°�'°'a'"„�. "'.''«'°m °�,"'•""� (SHEET 5) (SHEET 8) ��„ m.,, -- -- u TED:I=nET Ro®eewvm«u.,mwa«nr F.ar ate, o�reNgce nmcww,o.r.,. 1OF„=r,.,��,.rrxw,w�,M.o,i..no'+wr.o, Iwo H9�M9 I —" wxrwrm,„enu,v,vexre sxxcwR.wivTcswrmrm.nm,mxor xr.ou,raw,N,N,„xm,o., SEC' /5 LITE 'IVI= cra:r'rer """"`"'r""°wr°"°nr°^o„ T5.6.R63W 1 -- SEC I T5N --- . 14 R63W_ wuuwnuoF .8.ox z mowoirvnres xnoa�. ssnw+xu,EsssEoou co,owwoxrnrE wnnExon,rl w%raxcE.1". aorvrEoar E.,'.roaernwcwoo�srnrvcEsuuinarwo.sss,axs. , STATUTE, LMPTIONS,NOTCE: ACCORD,. TO COLORADO STATE U. YOll MUST .TER YOlIFIRST DISCOVER SLICII DEFECT IX NO EVENT Mk/ PM/ PCT., BASED UPDX PM' TM SURVEY n x,xowry xeaearv. EOINORE innNro ar. YEARS FR. DOTE OFT. EZ:M -E e,risr Rry m.mSr f," w Z'Me'F= �msnf. (SHEET 6) �mn.w.N,.Po«wr=,ar,00N.o,rr„=,mwuu_Nmmrw. orr,n,i.RwNwcm7 ''„, I (SHEET 9) aDEFECTOR PE HF PI AVS AND TITLE OF 5nedra" wwn.rRRrcwrR,uuwnreRuwarawwx.w«uwmRr<r.mNn. v.ra,,.,no..Fa rRox,r I .OF vwexicscuE., .zmv FORE.xYiwxoxrsaREFwaFn FORTN165Ire. „REu rFruu«,.,�r,R�om FF�wsYN.:,e,Nx«,«�,�NN.�.w =F=7"r CORD DIST .ESP FROM GLO NOTES OF TOWNSHIP B NOR, I.J.E 531.61.. IDAN.OPTED OCTOBER „ ... F..r,iN,.F.«,woreN.v�,.iF... a DATE orsuRvcv x xwswaixroRTHE SURVEY WAS cnw.xETEnoxnECEuamx..a,o . 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PROJECT vv W LAND LAND io SURVEY PLAT seczs., �° RANGE.W£ST snozrx. .'".• ., vmc.om, PPP.V. sous. aEsxmvx wvEocouMv.coEorsnoo LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO .>E.TAI,S=Ag ZT:.1d.. r-7.=7,«E.am "'" c o.u«c.Ar. ',11, �. Va lr, on .n X rren.un oixwE.nEmo�.mu-.ar PPS w+.=wFnv.. Ea cc=..wEnm.>mrcm.aMmxbm.wni=a=vnmrV'w" �1F x�x OD REVIEW APPROVED APPRavED LAND PRO T W URVEY EtAi WERT PROJECT NO Preliminary 0W02024 4 05 31 PM LAND SUAVE xPLA PART OF THE TOWNSHIP 6 o ONE-HALF t wwce63WESS . WELDC�.COLoRwD zoFs LAND SURVEY PLAT ENE SEC 33 T6 R63W T6 T5 SEC 27 T6 R63W NW1/4 PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO �IU lli VIII hsari nl SW1/4 �_. ,pl SEC 34 T6 R63W 0-0.40.00 s,W2z�. m SEC 3 T5N R63W -- DADA ate„ E ze TZ,r) NE1 /4 =a9,z<a w 20331.38.04 SE1/4 OIL E GAS EQUIPMENT x801,14 E zsusrlM) 0 EGEND ALIQUOT CORNER FOUPPO OR SETAE oeueeeo aSET MONUMENT AS DESCRIBED Z\ EASEMENT ARRERAENCEDoNWEETS-z DEOVERNIA3nrt LOT ONE PROPOSED LEASE BOUNDARY SSEE NOM W FENCE, STRAND BARBED WIRE PRI MEASURED PRI RECORD WEE NOTE NO SEC 35 T6 R63W ea: aSE`"eo:≤ a - s .caes .i I�$ ®z\ li lieu t—Zteanvsrnono II zeza%°,999"' aw I� rig T6N T5 Symbol LeoenE OWater Well Olt OW, PRIPOSIO MOSS OSSEO, xcare. PPS OESIONED OC REVIEW APPROVED POPO OLP APPROVES PROJECT W LAND SLEW, RAT CLONE PROJECT NO Preliminary PII10/2026 6:05,6 N LAND SURVEY PLAT THE SOUTH ONE.EIALF OF SEC 3E. TOWNSILIP 6 NORTH. RANGE 63 WEST ,,,11==r-- 4,9 LAND SURVEY PLAT SEC 4 T5N R63W §21 se a SEC 34 T6N R63W ii %uce rsEcx _ nt iwwo�lm�tn) — ��cLses'az---- AAAA N0. 4 N0. 3 ACK OS NW1/4 /4 a..GAS.PCILn.. T�. SW1/4 iLtb it e 0AA0® - Na 6H (COXED, (E) PIP EPP PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, 6 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO A0A , t�w9zar tat RECEIVER SI N0. 2 -__ JN- - - - - -- ry NE1/4 c1 N0. 1 SEC 3 T5N R63W AREA - 27.35>.,>3 sa - 639.513 MASS' .F A,��,"T}� SE1/4 T6 T5N GRAPHIC SCALP ',SDP EMsEND �CLEC0011 RNED FOMM OR SETAE DESCRIBED MONUMENT AS DESCRIBED Z\ EASEMENT ADREGEIDENCEDo.=METs,-z s,rnory LINE 00PMEMPEr LOT LODE PROPOSED LEASE BOUNDARY MEE 001, FENCE, SIPADO BARBED 'DIRE Pm, MEASURED PEI PECORD1SEE XOTE 91 �9.00e.o,�ss. SEC 2 T5N R63W AO AAA -g ,,ouE - w`� zs xi%sM SEC 10 T5N R63W 41-1,7,m= = 1 i 1 Symbol LeoenE OWater Well PPS GAP CpC REVIEW APPROVED APPROVED PROJECT W LANOSURVEYRAT CAPRI- PROJECT NM ASCENT PROJECT NO CPC_OMPOD1 Preliminary 01/10/2024 a 06 10 PM TOWNSHIP 6 NORM. RANGE M WEST LAND SURVEY PLAT THE SOUTH ONPHALF OF SEC M. ,r,,,=7.0= O,9 LAND SURVEY PLAT SEC 9 T5N R63W SEC 3 PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. T� SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. IrT5N R63W---------- __ WELD COUNTY, COLORADO • 'genres, 11r J2494.0PPM SEC 10 T5N R63W REa = a.e za.,se se.Fr. = e,3.35, 4c rs ./— SEC 15 �'‘-„m T5N R63W' Mxenzmc..a. Pi 01suUO CO RNER SOU. OR SETA, INo DESCRIBED A sEl MONUMENT AS DESCRIBED 0• EASSMMIS ASREPPRENCEDOx MOSES, -z MOUBMIARNS LOS LOSE PROPOSED LEASE BOUNDARMSEE NOM 71 MSC...SMARM, SASSED MRS PM MEASURED SEC 11 T5N R63W Symbol LeoenE OWater Well a DESIGNED NC REVIEW APPROVED IOW OLP APPROVED PROJECT W LAND SURD, PLAT Preliminary 01/10/2024 4 DB 10 PM LAND SURVEY PLAT PART OF THE SOUTH ONE4SAIS DEC 29. RANGE D.3 WEST DRENCLPAL MERIDIAN WELD couxn.cvrowwo�'" 50,9 LAND SURVEY PLAT SEC 16 T5 R63W PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SEC 10 SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. T5 R63W WELD COUNTY, COLORADO N a.o-sssrz on =vol') (R) xsazz oSE iaw.xs'(in)(R _ J� _ _ xeazzorE zeas.ze'(v) I DS GRAVELROAD NE1 /4 a� aEF� -J 1�F � D sEm��xE 1 III «.F;26-5 ' SEC 22 T5 R63W Qis�uaeeo c MONUMENT AS DESCRIBED 61-2 Z\ EASEMENT DOVEIMAISPIT PO -SPORE PROPOSED LEASE BOUNEMRMSEE NOM P FEW,. a STRAND BARBED DIRE On) MEASURED T5SEN C >4 R63W Svmbol Leoend OW Water Well PPS DM REVIEW APPROVED MR PROJECT W LAND SURVE/ RAT PreliminaryD 21 PM 01/10,20,1 4 LAND SURVEY PLAT PART OF THE SOUTH ONEsPALF SEC 39. RANGE WEST WE,.«UNT,C,Lox J0 SOD, LAND SURVEY PLAT SEC 35 T6N R63W N0. 4 SEC 3 T5N R63W PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO ,‘ V, 6�,.aE;�1 SEC 2 �A T5N R63W f --z ate.». AREA = 27.838.686 se Fr. = 638.951 ACRES fi na��9�°� ss�.asbµtlR> SEC 11 T5N R63W " 09uNo M, CORNER DESCRIBED a EE Z\ EASEMENT ENCEoo.EOSES, ROVERPSIADIPS LOS LOVE PROPOSED LEASE BOUNDARY SSEE 501, FENCO.4 STRAND SASSED PRE On, MEASURED RECORD SEED 1,015140. SEC 1 T5N R63W Symbol LeoenE OWater Well PPS GIP DP REVIEW APPROVED PROJECT W LAND SURVEY Pt, CSIERS PROJECT NO Preliminary 01/102024 4 06 25 PM LAND SURVEY PLAT PAST OF THE SOUTH ONE -HASP 652 34. RANGE 63 WEST 62131 WELD«uN,y.roroa no ,ore 8 SEC 10 T5N R63W SEC 2 T5N R63W J, _ ea�„ LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO `\ gl ,\\‘ ��. SW1/4 OPPVIFIROPO /n A SEC 11 T5N R63W +AREA = 29.050.791 SO. FT. - 649.955 ACRES +/- 1 =,E SEC 14 T5N R63W 09u.,CO NG LEGEND NE DESCRIBED a EE. MONUMENT AS DESCRIBED oEAsEnicEoo.E.0ts,z SEC 12 T5N R63W p SE FENCE, STRA.0 BARBED ..E MEASuPED IM RECORD ',SEE NOTE,. SI Symbol LeoenE OWater Well OC REVIEW APPROVED APPRavflo PROJECT W LANDSURVEYRAT cuw-i-PRoJEci No. ASCENT PROJECTNO 1-R0_090001 Preliminary LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF SEC 39. RANGE WEST FRWOPAI. MERIDIAN rvE,n couvn. COLORADO'" 9019 LAND SURVEY PLAT SEC 15 T5N R63W s SEC OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SL C 11 SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. T5N R63W WELD COUNTY, COLORADO "fveg.ez a (=';)d (B) s� .sz'(rn) f nestfs's rve s'zS[ zsse � IVW1/4 NE1 /4 SEC 14 T5N R63W r- - _ 27 890 228 SQ 698 894 ACRES , q,d 0 APPRCVED n(IBAr) --- SEC 23 T5N R63W 0 ADM LEGEND CORNER FOOPPO OR SETAE DESCRIBED sE-r MONUMENT AS DESCRIBED Q. EASEMENT ENCEDON 6BEE161-z ROVERIRADMI LOT LOVE PROPOSED LEASE BOUNDARY.. NOM 71 FENCE.STRAND BARBED 'DIRE MEASURED IR) RECORD 'MEE NOTE,. DI SEC 13 T5N R63W Symbol LeoenE OWater Well PPS OC REVIEW APPROVED SIAM GAP PROJECT W LANDSURVEYFiAT CLOW PROJECT NO. Preliminary 01/10/2024 4003,PN LAND SURVEY PLAT MART OF THE SOUTH ONE-HALF DEC 39. RANGE D.3 WEST ATM WE,.Urvn,COLOR DO « I" Kr Exhibit C Mine Access Route Kersey Mine_112 Reclamation Operation OWNER: CO 392 (HIGHWAY TO GREELEY AREA) NoCo SOD LEGEND 0 ACTIVE/ABANDONED GAS WELL CENTRAL DELIVERY POINT FACILITY STRUCTURE GAS WELL ACCESS ROAD CO 392 TO MINE PROPOSED ROUTE ON EXISTING ROADWAYS CO 392 TO MINE PROPOSED ROUTE ON PROPOSED ROADWAYS DIRT/GRAVEL ROAD PAVED ROAD PERMIT AREA BOUNDARY PARCEL BOUNDARY CO 392 (HIGHWAY TO CO 14 / BRIGGSDALE) )-]COUNTYR AD 67 COUNTY ROAD 68 (COLLECTOR ROAD) WELLS RANCH CHEVRON PROCESSING PLANT COUNTY ROAD 64 - PRIVATE ROAD / CONTROLLED ACCESS ONLY PERMIT AREA BOUNDARY 0 1250' 2500' I � MINE SITE ENTRANCE (NOTE 1) 5000' SCALE 1" = 2500' NOTES: 1. MINE ACCESS SHALL BE RESTRICTED BY MEANS OF SECURITY GATE & SIGNAGE. 2. PROPERTY ACCESS RESTRICTED BY WELLS RANCH GUARD SHACK. 3. SEE PROPOSED ROADWAY ON EXHIBIT D-1. WELLS RANCH GUARD SHACK (NOTE 2) PRIVATE ROAD PRIVATE RESIDENCE MINE SITE EXIT (NOTE 1) PROPOSED SAND PLANT COLORADO SAND COMPANY II, LLC PROJECT: KERSEY MINE TITLE: MINE ACCESS ROUTE DRAWN BY CHECKED BY: GW AJR APPROVED BY: DK DATE: JUNE 2024 SCALE: 1" = 2500'-0" PROD. NO. 53589 0000.0000 FILE NO A-5 MINE ACCESS POUT G EXHIBIT A-5 =2 Tr2C 1526 Cole Blvd, Suite 150 Lakewood, CO, 80401 Phone: (303) 792-5555 Fax: 970.484.3250 ATTACHMENT J Table L-1: Reclamation Cost Estimate Table L-1: Reclamation Cost Estimate Item No. Work Description Quantity Unit $/Unit $/Unitx CPI I[illation Extended 1 PLANT AREA AND FACH,TIES A Plant Dismantlement/Transport to Denver Metro Area 1 Lump Sum $ 1,250,000 $ 1,527,839 $ 1,527,839 B Plant Foundations Concrete Breaking/Removalan-Pit Disposal 71,337.00 YD3 $ 8 $ 9 $ 653,949 C Paved Area Concrete/Asphalt Removal/In-Pit Disposal (13.24 acres/6-inches) 10,687 YD3 $ 4 $ 5 $ 52,250 D Miscellaneous Solid Waste Removal/Disposal 15 Truck Loads (12 YD3) $ 125 $ 153 $ 2,292 E Scarify/Mix Rocked Plant Area Into Sub -Grade (Dozer/Scarifier) 13.24 Acres $ 175 $ 214 $ 2,832 F Regrade and Disc Plant Operations Area (107 acres) 107 Acres $ 300 $ 367 $ 39,235 G Place/Spread l2" Growth Medium Across Full Plant Area (107 acres) 173,000 YD3 $ 3 $ 3 $ 528,632 H Seed Mix (23 lbs./acre x 107 acres) 2,500 Lbs. $ 35 $ 43 $ 106,949 I Drill Seed 107 Acres $ 225 $ 275 $ 29,426 J Mulch Application (2 tons/acre x 107 Acres) 214 Acres $ 235 $ 287 $ 61,468 K Crimping (Discing) 107 Acres $ 75 $ 92 $ 9,809 L Silt Fencing/Sediment Logs and Erosion Control 1 Lump Sum $ 2,500 $ 3,056 $ 3,056 Sub -Total Plant Demolititon and Removal $ 3,017,735 2 TERMINAL MINE PITC@ YEAR 5)/HAUL ROADS/PROCESS DISCARD STOCICPILE (PDS) A Place/Spread 12" Growth Medium Terminal Pit (MiningYears0-5 - ReclamationYears3-5 - PDS@Year5: (3+127+108+93+76+71)-(42-54114)-12.28 = 325.72 acres) 525,495 YD3 $ 2 $ 3 $ 1,573,628 B Slope Reduction Process Discard Stockpile - Dozer 5H:1 V Slope - 2 Sides Only 63 Hours $ 175 $ 214 $ 13,476 C Place/Spread 12" Growth Medium on Remainder Process Discard Stockpile (12.28 acres) 19,808 YD3 $ 2 $ 3 $ 59,316 D Rip/Scarify East, Northwest and Southwest Primary Haul Roads (10.6+10.6+22.8=44 acres) 44 Acres $ 175 $ 214 $ 9,411 E Place/Spread 12" Growth Medium on Haul Roads (44 acres) 70,987 YD3 $ 2 $ 3 $ 212,574 F Seed Mix (12 lbs./acre PLS x [325.72+12.28+44] 382 Acres) 4,584 Lbs. $ 35 $ 43 $ 196,101 G Drill Seed 382 Acres $ 225 $ 275 $ 105,054 H Mulch Application (2 tons/acre x 382 acres) 764 Ton $ 235 $ 287 $ 219,447 I Crimping (Discing) 382 Acres $ 75 $ 92 $ 35,018 J Miscellaneous Silt Fencing/Sediment Logs and Erosion Control 1 Lump Sum $ 10,000 $ 12,223 $ 12,223 Sub -Total Terminal Mane Pi (@ Year 5)/Haul Roads/PDS $ 2,436,248 3 REVEGETATION MONITORING AND MAINTENANCE - 5 YEARS A Post -Closure Year 1 (PC -1) 585 Acres $ 150 $ 183 $ 107,254 B Post -Closure Year 2 (PC -2) 585 Acres $ 125 $ 153 $ 89,379 C Post -Closure Year 3 (PC -3) 585 Acres $ 100 $ 122 $ 71,503 D Post -Closure Year 4 (PC -4) 543 Acres $ 75 $ 92 $ 49,777 E Post -Closure Year 5 (PC -5) 489 Acres $ 50 $ 61 $ 29,885 Sub -Total Monitoring and Maintenance - S Years $ 347,797 TOTAL DIRECT COST (ITEMS 1-3) $ 5,801,781 INDIRECT COSTS 4 Liability Insurance 2% of Direct $ 116,036 5 Performance Bond 1.05% of Direct $ 60,919 6 Job Superintendent 6 Month 8,750 10,695 $ 64,169 7 Profit 10% of Direct $ 580,178 8 Engineering/Bid Preperation 4.25% of Direct $ 246,576 9 Reclamation Management/Administration 5% of Direct $ 290,089 TOTAL INDIRECT COSTS (ITEMS 4-9) $ 1,357,966 --- GRAND TOTAL2 $ 7,159,747 Notes: Estimate Provided by Plant Construction Contractor - Includes all Labor and Materials for Complete Plant/Equiptment Removal and Foundation Demolition ' All Costs Reflect Quotes and/or Unit Prices Utilized for the CSC Keenesbnrg No. 2 Mine (DAMS Permit No. M 2019-058) Reclamation Cost Estimate - Adjusted for Inflation Utilizing Compounded CPI for 2019-2023 Quantities May Be Rounded Se) DNR June 26, 2024 COLORADO Division of Reclamation, Mining and Safety Department of Natural Resources Brady Reece Colorado Sand Company II, LLC 2001 Kirby Drive, Suite 360 Houston, TX 77019 Re: Kersey Mine, File No. M-2024-026 Receipt of 112c Construction Materials Reclamation Permit Application Dear Brady Reece: Your 112c Construction Materials Reclamation Permit application for the Kersey Mine, which is located in Weld County, has been filed. All comment and review periods began on June 26, 2024. The decision date for your application is scheduled for September 24, 2024. Newspaper publication of a notice (published once a week for four consecutive weeks) regarding the filing of your application and transmittal of a copy of the notice to all owners of record of surface and mineral rights, holders of any recorded easements, and all owners of record of lands that are within 200 feet of the boundary of the affected land is required within 10 days of submittal. You must submit proof of the notice and mailings, such as Certified Mail Return Receipt Requested, to the Division prior to the decision date. The Division is reviewing your application to determine whether it is adequate to meet the requirements of the Act. We will contact you if additional information is needed. Any changes or additions to the application on file in our office must also be reflected in the public review copy which has been placed with the Weld County Clerk and Recorder. Please be reminded that all operators must contact the Colorado Department of Public Health and Environment, Water Quality Control Division regarding storm water permits. If you have any questions, please contact me by telephone at 303-866-3567 x 8126, or by email at Nikie.gagnon@state.co.us. Sincerely, lficflts .eab naIl- Nikie Gagnon Environmental Protection Specialist cc: Timothy McCarthy, Tamarack Consulting Dustin Krajewski, TRC M -AP -04 Physical Address: 1313 Sherman Street, Roam 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 Mailing Address: DRMS Room 215, 1001 E 62nd Ave, Denver, CO 80216 https://drms.collorado.gov Jared S. Polk, Governor I Dan Globs, Executive Director I Michael A. Cunningham, Director i CONSTRUCTION MATERIALS REGULAR (112) OPERATION RECLAMATION PERMIT APPLICATION PACKAGE FOR: KERSEY PROJECT PERMIT NO. M PREPARED FOR: Colorado Sand Company II, LLC 2001 Kirby Drive, Suite 360 Houston, Texas 77019 PREPARED BY: TRC Environmental Corporation 1526 Cole Blvd., Suite 150 Lakewood, Colorado 80401 DATE SUBMITTED: June 7, 2024 Table of Contents EXHIBIT A: Legal Description A-1 Exhibit A-1: Metes and Bounds Parcel Description A-4 Exhibit A-2: Site Topography A-5 Exhibit A-3: General Site Location A-6 Exhibit A-4: Site Entrance A-7 Exhibit A-5: Mine Access Route A-8 EXHIBIT B: Index Map B-1 Exhibit B-1: Index Map B B-2 EXHIBIT C: Pre -mining and Mining Plan Map(s) of Affected Lands C-1 Exhibit C-1: Relevant Features and Adjoining Surface Ownership C-2 Exhibit C-2: Affected Area and Localized Topography C-3 Exhibit C-3: Affected Area Vegetation C-4 Exhibit C-4: Affected Area Soils C-5 Exhibit C-5: Surface and Groundwater Resources C-6 EXHIBIT D: Mining Plan D-1 Exhibit D-1: Plan of Operations — Kersey Mine D-7 1. Introduction D-7 2. Oil and Gas Production Infrastructure Considerations D-7 3. Permit Area and General Mine Plan Progression D-8 4. Mining Plan D-9 4.1 Mine Operating Schedule D-9 4.2. Mine Access Route and In -Pit Haul Roads D-9 4.3. Mining Equipment Roster D-11 Table D-1: List of Mining Equipment D-11 4.4. Pre -Production Site Development D-12 4.5. Mining Sequence and Annual Production D-12 4.6. Completion of Mining - Final Site Closure and Reclamation (Terminal Pit and Plant Area)D-20 5. Processing Plant Operations D-20 5.1. Overview - General Process Flow D-21 5.2. Plant Operating Schedule D-22 5.3. Plant Facilities D-23 6. Glossary D-26 Exhibit D-2: Mine Plan D-27 Exhibit D-3: Process Plant and Facilities Layout D-28 Exhibit D-4. Process Flow Diagram D-29 Exhibit D-5: User of Polymers D-30 EXHIBIT E: Reclamation Plan E-1 Topsoil Segregation, Preservation, and Replacement E-5 Stabilization, Grading, and Compaction of Spoil E-6 Table E-1: Reclamation Sequence and Projected Material Balance E-8 Seedbed Preparation, Seed Mix, and Timing of Seeding E-10 Table E-2: Seed Mixture and Application Rate E-13 Glossary E-15 EXHIBIT F: Reclamation Map F-1 Exhibit F-1: Reclamation Plan Map F-2 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 EXHIBIT G: Water Information G-1 Presence of Wetland and Waterbody Features G-2 Surface Water Resources G-3 Groundwater Resources G-4 Table G-1: Groundwater Wells within 200 ft of Permit Area G-4 References G-10 Exhibit G-1: Request for an Approved Jurisdictional Determination —Kersey Mine G-11 Exhibit G-2: Approved Jurisdictional Determination Letter —Kersey Mine G-12 Exhibit G-3. Wetland and Waterbody Delineation Report —Kersey Mine G-13 Exhibit G-4: Wetland Determination Data Forms G-14 EXHIBIT H: Wildlife Information Federal Species H-3 State Species H-3 Migratory Birds H-4 Table H-1: Permit Area —Seasonal Use by Wildlife H-6 Exhibit H-1: Habitat Assessment Report H-10 Exhibit H-2: Significant Wildlife Resources H-11 Exhibit H-3: USFWS IPaC Trust Resources Report H-12 EXHIBIT I: Soils Information I-1 Table 1-1: Summary of Mapped Soils Data 1-2 EXHIBIT J: Vegetation Information J-1 Table J-1: Vegetation Species at Sample Point Locations J-3 References J-6 Exhibit J-1: Vegetation Survey Plots Map J-7 Exhibit J-2: Data Forms J-8 Exhibit J-3: Vegetation Production and Carrying Capacity Analysis J-9 Methods J-9 Calculation Results for Stocking Rate J-10 EXHIBIT K: Climate Information K-1 References K-2 Exhibit K-1: Wind Rose —Kersey Mine K-3 EXHIBIT L: Reclamation Costs L-1 Table L-1: Reclamation Cost Estimate L-3 Life -of -Mine Concurrent Reclamation L-6 Life -of -Mine Advance Reclamation L-6 Final Site Closure L-6 EXHIBIT M: Other permits and Licenses M-1 Permits Required M-1 Federal M-1 State of Colorado M-2 Weld County, Colorado M-2 Permits Not Required Based on Current Information M-2 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 EXHIBIT N: Source of Legal Right to Enter N-1 Exhibit N-1: Landlord's Consent to Assignment and Assumption of Lease N-2 Exhibit N-2: Memorandum of Lease N-3 EXHIBIT O: Owner(s) of Record of Affected Land (Surface Area) and Substance to be Mined O-1 Table 0-1: Tax Parcels of Owners of Affected Land and Substance to be Mined O 0-1 EXHIBIT P: Municipalities within Two Miles P-1 EXHIBIT Q: Proof of Mailing Notice to Board of County Commissioners and Conservation Districts Q-1 Exhibit Q-1: Date Stamped Acknowledgement Receipt from the Board of County Commissioners Q-2 EXHIBIT R: Proof of Filing with the County Clerk and Recorder R-1 EXHIBIT S: Permanent Man-made Structures S-1 Exhibit S-1: Structure Agreement: Bonanza Creek Energy Operating Company, LLC S-2 Exhibit S-2: Structure Agreement—DCP Operating Company, LP S-3 Exhibit S-3: Tallgrass Energy Partners, LP (Colorado Liberty Pipeline, LLC) Easements S-4 Exhibit S-4: Stability Analysis Report S-5 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 STATE OF COLORADO DIVISION OF RECLAMATION, MINING AND SAFETY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (3031866-3567 FAX: (303)832-8106 APPLICABILITY: CONSTRUCTION MATERIAL REGULAR (112) OPERATION RECLAMATION PERMIT APPLICATION PACKAGE COLORADO DIVISION OF RECLAMATION MINING - &- SAF ETY This application package is for a construction materials operation which affects 10 acres or more. If you plan to conduct a construction materials extraction operation which meets these criteria, please follow the instructions provided in this package, in the Rules and Regulations, and in the Colorado Land Reclamation Act for the Extraction of Construction Materials, as required. RECOMMENDATIONS PRIOR TO FILING: The Construction Material Rules and Regulations (the Colorado Land Reclamation Act for the Extraction of Construction Materials, Section 34-32.5-101, et seq., C.R.S., and 2 CCR 407-1) and the Colorado Mined Land Reclamation Board (the "Board") regulate the permitting, operational and reclamation requirements for all construction material extraction operations in Colorado. It is your obligation to comply with the Act and Regulations. You are encouraged to obtain and review a copy of the Rules, available for $3.00 from the Division of Reclamation, Mining, and Safety (the "Office"). hi order to submit your application properly, it is recommended that you review the Act and: Rule 1.1 Rule 1.4.1 Rule 1.4.5 Rule 1.6 Rule 3.1 Rule 3.3.1 Rule 4 Rule 6 Rule 6.2 Rule 6.4 Rule 6.5 Definitions; Application Review and Consideration Process; Specific Requirements for Regular 112 Operations; Public Notice Procedures; Reclamation Performance Standards; Operating without a Permit - Penalty; Performance Warranties and Financial Warranties; Permit Application Exhibit Requirements; General Requirements of Exhibits; Specific Permit Application Exhibit Requirements; and Geotechnical Stability Exhibit. It is recommended that you contact the agencies listed in the application section titled "Compliance With Other Laws" prior to submitting the application to the Office . Office of Office of Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines -11 - FILING REQUIREMENTS: In order to apply for a Reclamation Permit for a Regular 112 Operation, please provide: o One (1) signed and notarized completed ORIGINAL and one (1) copy of the completed original Regular 112 Operation Application Form. ORIGINAL SIGNATURES MUST BE DONE IN BLUE INK. o Two (2) copies of Exhibits A -S (required sections described in Rule 6). o Two (2) copies of Addendum 1 - Notice requirements (described in Rule 1.6.2(1)(b)). A sample of this notice is attached for your use. o The Geotechnical Stability Exhibit when required by the Division. o The application fee. The ninety (90) day period for review of the application and exhibits will NOT begin until all required information and fee are submitted. The Office will then review the submitted information for adequacy. NOTICE REQUIREMENTS: 1. You MUST send a notice, on a form approved by the Board, to the local board of county commissioners. A copy of this "Notice of Filing Application" form is attached for your use. 2. If the mining operation is within the boundaries of a conservation district, send a notice to the board of supervisors of the conservation district, PRIOR to filing the application. A copy of this "Notice of Filing Application" form is attached for your use. 3. You MUST include proof of notice #1 and #2 above with the application at the time the application is submitted to the Office for filing (Rule 1.6.2(1)(g)). 4. PRIOR to filing the application, place for public review a copy of the application, less confidential items, with the clerk or recorder of the county or counties in which the affected land is located. 5. You MUST include an affidavit or receipt demonstrating that the application was filed with the county clerk or recorder at the time the application is submitted to the Office for filing. 6. Any changes or additions made to an application submittal MUST be filed with the county clerk or recorder. You MUST also provide the Office with an affidavit or receipt demonstrating that the change was filed with the county clerk or recorder no later than the close of business on the day the change was filed with the Office (Rule 1.8.1(2)). 7. Within ten (10) days after your application is considered filed, you must publish four times in a newspaper of general circulation, in the locality of the proposed mining operation, the notice described in Rule 1.6.2(1)(d). 8. In addition, after the first publication you must mail or personally serve a copy of the notice described in Rule 1.6.2(1)(d) to all owners of record of surface rights to the affected land and all owners of record of lands that are within 200 feet of the boundary of the affected land (Rule 1.6.2(1)(e)). A copy of a form which includes all required information for the notice is attached for your use. 9. Prior to the Office making a decision (consideration of the application), you MUST submit a copy of the proof of publication from the newspaper and proof of all required notices. Proof of the notices may be by submitting copies of return receipts of a certified mailing or by proof of personal service (Rules 1.4.1(4), 1.4.2(4)(c), 1.6.2(1)(a)(ii), and 1.6.2(1)(g)). The copy of the application and any changes or additons placed at the office of the county clerk or recorder shall NOT be recorded, but shall be retained there for at least sixty (60) days after a decision on the application by the Office and be available for inspection during this period. At the end of this period, the application may be reclaimed by the applicant or destroyed (Rule 1.6.2(2)). APPLICATION REVIEW PROCEDURES: The Office shall approve or deny the application within ninety (90) days of filing unless the date for consideration by the Office is extended pursuant to Rule 1.8. The time for consideration shall not be extended beyond ninety (90) days after the last such change submitted. For complex applications, the review period may be extended an additional sixty (60) days. Please see Rule 1.1(10) for the definition of what constitutes a complex application. APPLICATION APPROVAL/DENIAL: If the requirements of the Act and Mineral Rules have been satisfied, the Office will approve the application. The Act also provides for automatic approval if no action is taken by the Office by the end of the review period. If the Act and Regulation requirements have not been satisfied, the Office will deny the application. If the Office denies the application, you may appeal to the Board for a final determination by submitting a written request for administrative appeal to the Board within 60 days of the decision date (Rule 1.4.7). PERFORMANCE AND FINANCIAL WARRANTIES: A performance warranty, and a financial warranty dollar amount determined during the application review process, must be submitted and approved by the Office PRIOR to permit issuance. A financial warranty should NOT be submitted until a decision on the application has been made. If the applicant is a unit of state or county government, then ONLY a performance warranty is required. Several different types of financial warranties are allowed by the law. Please review Rule 4.0 to determine which type of financial warranty you desire to use. You may obtain the appropriate warranty forms from the Office during the application review period. Please note that an application approval DOES NOT convey a right to begin operations. You MUST submit, and have approval of your performance and financial warranties, and receive your copy of the signed permit document PRIOR to beginning on -site mining activity. AUTOMATIC PERMIT APPROVAL: An automatic approval will occur where the Office fails to notify the applicant/operator that the application has been denied. This decision must be made ninety (90) calendar days from the date the application was determined to have been filed. However, the performance and financial warranties must be submitted and approved by the Office before the permit will be issued even if you receive an automatic approval. NO MINING OPERATIONS SHALL BEGIN UNTIL A PERMIT IS ISSUED (Section 34-32.5-109(1), C.R.S.). -iv - COMPLIANCE WITH OTHER LAWS: Compliance with the Act and Rules and Regulations of the Mined Land Reclamation Board DOES NOT relieve you of your responsibility to comply with all other applicable state and federal laws. We recommend that you contact the following agencies to determine whether you need to comply with their legal requirements: o The Colorado State Historical Preservation Office regarding properties of historical significance including the need for an archeological survey, procedures for requesting a file search, and inventory forms to identify structures. • Colorado Division of Water Resources with regard to water rights; o Colorado Department of Health, Water Quality Control Division, with regard to the discharge of pollutants into the State waters; • Colorado Department of Health, Air Pollution Control Division, with regard to the need for a fugitive dust permit; o U.S. Bureau of Land Management or the U.S. Forest Service if the proposed operation will occur on federal lands; • U. S. Army Corps of Engineers regarding a dredge and fill (404) permit; and • The County Planning Department for the county or counties in which your proposed operation is located. Section 34-32.5-109(3), C.R.S, requires a mining operator to be responsible for assuring that the mining operation and the post -mining land use comply with local land use regulations and any master plan for extraction adopted pursuant to Section 34-1-304, C.R.S. COMPLETION OF MINING: Upon completion of any phase of reclamation, you should consult Rule 3.1 for reclamation standards and 4.16 for details on how to request a reclamation responsibility release from the Board. STATE OF COLORADO DIVISION OF RECLAMATION, MINING AND SAFETY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303) 832-8106 CONSTRUCTION MATERIALS REGULAR (112) OPERATION RECLAMATION PERMIT APPLICATION FORM CHECK ONE: Ft There is a File Number Already Assigned to this Operation Permit # M - COLORADO DIVISION OF RECLAMATION MINING - &- SAFETY (Please reference the file number currently assigned to this operation) New Application (Rule 1.4.5) Amendment Application (Rule 1.10) Conversion Application (Rule 1.11) Permit # M - - (provide for Amendments and Conversions of existing permits) The application for a Construction Materials Regular 112 Operation Reclamation Permit contains three major parts: (1) the application form; (2) Exhibits A -S, Addendum 1, any sections of Exhibit 6.5 (Geotechnical Stability Exhibit; and (3) the application fee. When you submit your application, be sure to include one (1) complete signed and notarized ORIGINAL and one (1) copy of the completed application form, two (2) copies of Exhibits A -S, Addendum 1, appropriate sections of 6.5 (Geotechnical Stability Exhibit, and a check for the application fee described under Section (4) below. Exhibits should NOT be bound or in a 3 -ring binder; maps should be folded to 8 1/2" X 11" or 8 1/2" X 14" size. To expedite processing, please provide the information in the format and order described in this form. GENERAL OPERATION INFORMATION Type or print clearly, in the space provided, ALL information requested below. 1. Applicant/operator or company name (name to be used on permit): Colorado Sand Company II, LLC p 1.1 Type of organization (corporation, partnership, etc.): Colorado Limited Liability Corporation 2. Operation name (pit, mine or site name): Kersey Mine 3. Permitted acreage (new or existing site): 3.1 Change in acreage (+) 3.2 Total acreage in Permit area 4. Fees: 4.1 New Application 4.2 New Quarry Application 4.4 Amendment Fee 4.5 Conversion to 112 operation (set by statute) 5. Primary commoditie(s) to be mined: Industrial Sand 5.1 Incidental commoditie(s) to be mined: 1. Clay-<50,0001bs 4,018 permitted acres 0 acres 4,018 acres $2,696.00 $3,342.00 $2,229.00 $2,696.00 application fee quarry application amendment fee conversion fee 2 Process/ Reject (cmifr gi)yr 3. / lbs/Tons/yr 4. / lbs/Tons/yr 5. / lbs/Tons/yr 5.2 Anticipated end use of primary commoditie(s) to be mined: Oil and Gas Industry Indeterminent 5.3 Anticipated end use of incidental commoditie(s) to be mined: - 2 - 6. Name of owner of subsurface rights of affected land: Wells Ranch, LLLP If 2 or more owners, "refer to Exhibit O". 7. Name of owner of surface of affected land: Wells Ranch, LLLP 8. Type of mining operation: 2 Surface Underground 9. Location Information: The center of the area where the majority of mining will occur: COUNTY: Weld PRINCIPAL MERIDIAN (check one): T06N R63W Section 34 (S 1/4) T05N R63W Section 2 T05N R63W Section 3 T05N R63W Section 10 T05N R63W Section 11 T05N R63W Section 14 T05N R63W Section 15 6th (Colorado) 10th (New Mexico) Ute GENERAL DESCRIPTION: (the number of miles and direction from the nearest town and the approximate elevation): The distance from the town of Kersey is approximately 8.5 miles. The average elevation of the mine is 4,700 ft. 10. Primary Mine Entrance Location (report in either Latitude/Longitude OR UTM): atitude/Longitude- Example: (N) 39° 44' 12.98" (W) 104° 59' 3.87" Latitude (N): deg 40 min 25 sec 1 64 (2 decimal places) Longitude (W): deg 104 min 25 sec 38 70 (2 decimal places) OR Example: (I) 39.73691° (W) -104.98449° Latitude (N) (5 decimal places) Longitude(W) (5 decimal places) OR Universal Tranverse Mercator (UTM) Example: 201336.3 E NAD27 Zone 13 4398351.2 N UTM Datum (specify NAD27, NAD83 or WGS 84) Nad 83 13 Zone Easting -- Northing -- -3- 11. Correspondence Information: APPLICANT/OPERATOR (name, address, and phone of name to be used on permit) Contact's Name: Brady Reece Company Name: Street/P.O. Box: City: State: Telephone Number: Fax Number: Colorado Sand Company II, LLC Title: Chief Commercial Officer 2001 Kirby Drive, Suite 360 Houston P.O. Box: N/A Texas (970 ) _ 978-9858 Zip Code: 77019 ( N/A ) _ N/A PERMITTING CONTACT (if different from applicant/operator above) Contact's Name: Company Name: Street/P.O. Box: City: State: Telephone Number: Fax Number: INSPECTION CONTACT Contact's Name: Company Name: Street/P.O. Box: City: State: Telephone Number: Fax Number: Timothy McCarthy Tamarack Consulting LLC Title: Program Manager 809 14th Street, Suite A Golden P.O. Box: N/A Colorado Zip Code: 80401 (303 ) _ 968-7677 ( N/A ) _ N/A Dustin Krajewski TRC Title: Project Manager 1526 Cole Blvd Lakewood P.O. Box: N/A Colorado Zip Code: 80401 (970 ) _ 214-0548 ( N/A ) _ N/A CC: STATE OR FEDERAL LANDOWNER (if any) Agency: N/A Street: N/A City: N/A State: N/A Zip Code: N/A Telephone Number: ( N/A ) _ CC: STATE OR FEDERAL LANDOWNER (if any) Agency: Street: City: State: Telephone Number: N/A N/A N/A N/A ( N/A Zip Code: N/A -4- 12. Primaryfuture (Post -mining) land use (check one): Cropland(CR) Pastureland(PL) Rangeland(RL) Forestry(FR) Residential(RS) Recreation(RC) Developed Water Resources(WR) 13. Primary present land use (check one): Cropland(CR) Pastureland(PL) Rangeland(RL) Forestry(FR) Residential(RS) Recreation(RC) Developed Water Resources(WR) General Agriculture(GA) Wildlife Habitat(WL) Industrial/Commercial(IC) Solid Waste Disposal(WD) General Agriculture(GA) Wildlife Habitat(WL) Industrial/Commercial(IC) 14. Method of Mining: Briefly explain mining method (e.g. truck/shovel): Open -cut utilizing hydraulic excavator and/or front-end loader with truck haulage. Progressive pit with concurrent reclamation at steady-state. 15. On Site Processing: Crushin 13.1 Briefly explain mining method (e.g. truck/shovel): No crushing; screening will be employed. Material will be loaded onto trucks, hauled to a wet processing plant, and dried/sized to provide finished product. List any designated chemicals or acid -producing materials to be used or stored within permit area: No designated chemicals nor acid -producing materials will be used or stored. Non-toxic degradable flocculants will be employed. 16. Description of Amendment or Conversion: If you are amending or converting an existing operation, provide a brief narrative describing the proposed change(s). N/A -5 - Maps and Exhibits: Two (2) complete, unbound application packages must be submitted. One complete application package consists of a signed application form and the set of maps and exhibits referenced below as Exhibits A -S, Addendum 1, and the Geotechnical Stability Exhibit. Each exhibit within the application must be presented as a separate section. Begin each exhibit on a new page. Pages should be numbered consecutively for ease of reference. If separate documents are used as appendices, please reference these by name in the exhibit. With each of the two (2) signed application forms, you must submit a corresponding set of the maps and exhibits as described in the following references to Rule 6.4, 6.5, and 1.6.2(1)(b): EXHIBIT A EXHIBIT B EXHIBIT C EXHIBIT D EXHIBIT E EXHIBIT F EXHIBIT G EXHIBIT H EXHIBIT I EXHIBIT J EXHIBIT K EXHIBIT L EXHIBIT M EXHIBIT N EXHIBIT O EXHIBIT P EXHIBIT Q EXHIBIT R EXHIBIT S Rule 1.6.2(1)(b) Rule 6.5 Legal Description Index Map Pre -Mining and Mining Plan Map(s) of Affected Lands Mining Plan Reclamation Plan Reclamation Plan Map Water Information Wildlife Information Soils Information Vegetation Information Climate Information Reclamation Costs Other Permits and Licenses Source of Legal Right -To -Enter Owners of Record of Affected Land (Surface Area) and Owners of Substance to be Mined Municipalities Within Two Miles Proof of Mailing of Notices to County Commissioners and Conservation District Proof of Filing with County Clerk or Recorder Permanent Man -Made Structures ADDENDUM 1 - Notice Requirements (sample enclosed) Geotechnical Stability Exhibit (any required sections) The instructions for preparing Exhibits A -S, Addendum 1, and Geotechnical Stability Exhibit are specified under Rule 6.4 and 6.5 and Rule 1.6.2(1)(b) of the Rules and Regulations. If you have any questions on preparing the Exhibits or content of the information required, or would like to schedule a pre -application meeting you may contact the Office at 303-866-3567. Responsibilities as a Permittee: Upon application approval and permit issuance, this application becomes a legally binding document. Therefore, there are a number of important requirements which you, as a permittee, should fully understand. These requirements are listed below. Please read and initial each requirement, in the space provided, to acknowledge that you understand your obligations. If you do not understand these obligations then please contact this Office for a full explanation. 1. Your obligation to reclaim the site is not limited to the amount of the financial warranty. You assume legal liability for all reasonable expenses which the Board or the Office may incur to reclaim the affected lands associated with your mining operation in the event your permit is revoked and financial warranty is forfeited; -6- 2. The Board may suspend or revoke this permit, or assess a civil penalty, upon a finding that the permittee violated the terms or conditions of this permit, the Act, the Mineral Rules and Regulations, or that information contained in the application or your permit misrepresent important material facts; 3. If your mining and reclamation operations affect areas beyond the boundaries of an approved permit boundary, substantial civil penalties, to you as permittee can result; 4. Any modification to the approved mining and reclamation plan from those described in your approved application requires you to submit a permit modification and obtain approval from the Board or Office; 5. It is your responsibility to notify the Office of any changes in your address or phone number; 6. Upon permit issuance and prior to beginning on -site mining activity, you must post a sign at the entrance of the mine site, which shall be clearly visible from the access road, with the following information (Rule 3.1.12): a. the name of the operator; b. a statement that a reclamation permit for the operation has been issued by the Colorado Mined Land Reclamation Board; and, c. the permit number. 7. The boundaries of the permit boundary area must be marked by monuments or other markers that are clearly visible and adequate to delineate such boundaries prior to site disturbance. 8. It is a provision of this permit that the operations will be conducted in accordance with the terms and conditions listed in your application, as well as with the provisions of the Act and the Construction Material Rules and Regulations in effect at the time the permit is issued. 9. Annually, on the anniversary date of permit issuance, you must submit an annual fee as specified by Statute, and an annual report which includes a map describing the acreage affected and the acreage reclaimed to date (if there are changes from the previous year), any monitoring required by the Reclamation Plan to be submitted annually on the anniversary date of the permit approval. Annual fees are for the previous year a permit is held. For example, a permit with the anniversary date of July 1, 1995, the annual fee is for the period of July 1, 1994 through June 30, 1995. Failure to submit your annual fee and report by the permit anniversary date may result in a civil penalty, revocation of your permit, and forfeiture of your financial warranty. It is your responsibility, as the permittee, to continue to pay your annual fee to the Office until the Board releases you from your total reclamation responsibility. 10. For joint venture/partnership operators: the signing representative is authorized to sign this document and a power of attorney (provided by the partner(s)) authorizing the signature of the representative is attached to this application. -7 - NOTE TO COMMENTORS/OBJECTORS: It is likely there will be additions, changes, and deletions to this document prior to final decision by the Office. Therefore, if you have any comments or concerns you must contact the applicant or the Office prior to the decision date so that you will know what changes may have been made to the application document. The Office is not allowed to consider comments, unless they are written, and received prior to the end of the public comment period. You should contact the applicant for the final date of the public comment period. If you have questions about the Mined Land Reclamation Board and Office's review and decision or appeals process, you may contact the Office at (303) 866-3567. Title: Chief Commercial Officer State of ) ) ss. County of ) -8 - Certification: As an authorized representative of the applicant, I hereby certify that the operation described has met the minimum requirements of the following terms and conditions: 1. To the best of my knowledge, all significant, valuable and permanent man-made structure(s) in existence at the time this application is filed, and located within 200 feet of the proposed affected area have been identified in this application (Section 34-32.5-115(4)(e), C.R.S.). 2. No mining operation will be located on lands where such operations are prohibited by law (Section 34-32.5-115(4)(f), C.R.S.; 3. As the applicant/operator, I do not have any extraction/exploration operations in the State of Colorado currently in violation of the provisions of the Colorado Land Reclamation Act for the Extraction of Construction Materials (Section 34-32.5-120, C.R.S.) as determined through a Board finding. 4. I understand that statements in the application are being made under penalty of perjury and that false statements made herein are punishable as a Class 1 misdemeanor pursuant to Section 18-8-503, C.R.S. This form has been approved by the Mined Land Reclamation Board pursuant to section 34-32.5-112,C.R.S., of the Colorado Land Reclamation Act for the Extraction of Construction Materials. Any alteration or modification of this form shall result in voiding any permit issued on the altered or modified form and subject the operator to cease and desist orders and civil penalties for operating without a permit pursuant to section 34-32.5-123, C.R.S. Signed and dated this day of Brady Reece Applicant/Operator or Company Name If Corporation Attest (Seal) Signed: Signed: Corporate Secretary or Equivalent Town/City/County Clerk The foregoing instrument was acknowledged before me this day of , by as of Notary Public My Commission expires: Table of Contents EXHIBIT A: Legal Description A-1 Exhibit A-1: Metes and Bounds Parcel Description A-4 Exhibit A-2: Site Topography A-5 Exhibit A-3: General Site Location A-6 Exhibit A-4: Site Entrance A-7 Exhibit A-5: Mine Access Route A-8 EXHIBIT B: Index Map B-1 Exhibit B-1: Index Map B B-2 EXHIBIT C: Pre -mining and Mining Plan Map(s) of Affected Lands C-1 Exhibit C-1: Relevant Features and Adjoining Surface Ownership C-2 Exhibit C-2: Affected Area and Localized Topography C-3 Exhibit C-3: Affected Area Vegetation C-4 Exhibit C-4: Affected Area Soils C-5 Exhibit C-5: Surface and Groundwater Resources C-6 EXHIBIT D: Mining Plan D-1 Exhibit D-1: Plan of Operations — Kersey Mine D-7 1. Introduction D-7 2. Oil and Gas Production Infrastructure Considerations D-7 3. Permit Area and General Mine Plan Progression D-8 4. Mining Plan D-9 4.1 Mine Operating Schedule D-9 4.2. Mine Access Route and In -Pit Haul Roads D-9 4.3. Mining Equipment Roster D-11 Table D-1: List of Mining Equipment D-11 4.4. Pre -Production Site Development D-12 4.5. Mining Sequence and Annual Production D-12 4.6. Completion of Mining - Final Site Closure and Reclamation (Terminal Pit and Plant Area)D-20 5. Processing Plant Operations D-20 5.1. Overview - General Process Flow D-21 5.2. Plant Operating Schedule D-22 5.3. Plant Facilities D-23 6. Glossary D-26 Exhibit D-2: Mine Plan D-27 Exhibit D-3: Process Plant and Facilities Layout D-28 Exhibit D-4. Process Flow Diagram D-29 Exhibit D-5: User of Polymers D-30 EXHIBIT E: Reclamation Plan E-1 Topsoil Segregation, Preservation, and Replacement E-5 Stabilization, Grading, and Compaction of Spoil E-6 Table E-1: Reclamation Sequence and Projected Material Balance E-8 Seedbed Preparation, Seed Mix, and Timing of Seeding E-10 Table E-2: Seed Mixture and Application Rate E-13 Glossary E-15 EXHIBIT F: Reclamation Map F-1 Exhibit F-1: Reclamation Plan Map F-2 EXHIBIT G: Water Information G-1 Presence of Wetland and Waterbody Features G-2 Surface Water Resources G-3 Groundwater Resources G-4 Table G-1: Groundwater Wells within 200 ft of Permit Area G-4 References G-10 Exhibit G-1: Request for an Approved Jurisdictional Determination —Kersey Mine G-11 Exhibit G-2: Approved Jurisdictional Determination Letter —Kersey Mine G-12 Exhibit G-3. Wetland and Waterbody Delineation Report —Kersey Mine G-13 Exhibit G-4: Wetland Determination Data Forms G-14 EXHIBIT H: Wildlife Information Federal Species H-2 State Species H-3 Migratory Birds H-3 Table H-1: Permit Area —Seasonal Use by Wildlife H-4 Exhibit H-1: Habitat Assessment Report H-8 Exhibit H-2: Significant Wildlife Resources H-9 Exhibit H-3: USFWS IPaC Trust Resources Report H-10 EXHIBIT I: Soils Information I-1 Table 1-1: Summary of Mapped Soils Data 1-2 EXHIBIT J: Vegetation Information J-1 Table J-1: Vegetation Species at Sample Point Locations J-3 References J-6 Exhibit J-1: Vegetation Survey Plots Map J-7 Exhibit J-2: Data Forms J-8 Exhibit J-3: Vegetation Production and Carrying Capacity Analysis J-9 Methods J-10 Calculation Results for Stocking Rate J-11 EXHIBIT K: Climate Information K-1 References K-2 Exhibit K-1: Wind Rose —Kersey Mine K-3 EXHIBIT L: Reclamation Costs L-1 Table L-1: Reclamation Cost Estimate L-3 Life -of -Mine Concurrent Reclamation L-6 Life -of -Mine Advance Reclamation L-6 Final Site Closure L-6 EXHIBIT M: Other permits and Licenses M-1 Permits Required M-1 Federal M-1 State of Colorado M-2 Weld County, Colorado M-2 Permits Not Required Based on Current Information M-2 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 EXHIBIT N: Source of Legal Right to Enter N-1 Exhibit N-1: Landlord's Consent to Assignment and Assumption of Lease N-2 Exhibit N-2: Memorandum of Lease N-3 EXHIBIT O: Owner(s) of Record of Affected Land (Surface Area) and Substance to be Mined O-1 Table O-1: Tax Parcels of Owners of Affected Land and Substance to be Mined O 0-1 EXHIBIT P: Municipalities within Two Miles P-1 EXHIBIT Q: Proof of Mailing Notice to Board of County Commissioners and Conservation Districts Q-1 Exhibit Q-1: Date Stamped Acknowledgement Receipt from the Board of County Commissioners Q-2 EXHIBIT R: Proof of Filing with the County Clerk and Recorder R-1 EXHIBIT S: Permanent Man-made Structures S-1 Exhibit S-1: Structure Agreement: Bonanza Creek Energy Operating Company, LLC S-2 Exhibit S-2: Structure Agreement—DCP Operating Company, LP S-3 Exhibit S-3: Tallgrass Energy Partners, LP (Colorado Liberty Pipeline, LLC) Easements S-4 Exhibit S-4: Stability Analysis Report S-5 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit A Page 1 EXHIBIT A LEGAL DESCRIPTION Per Rule 6.4.1 (1) -- The legal description must identify the affected land, specify affected areas and be adequate to field -locate the properry. Description shall be by (a) township, range, and section, to at least the nearest quarter - quarter section; and (b) location of the main entrance to the site reported as latitude and longitude, or the Universal Transverse Mercator (UT) Grid as determined from a USGS topographic map. A metes and bounds survey description is acceptable in lieu of township, range, and section. Where available, the street address or lot number(s) shall be given. This information may be available from the County Assessor's office or U.S. G.S. maps. A metes and bounds parcel description for the established Permit Area has been compiled by a Colorado- registered Professional Land Surveyor (signed/sealed copy retained by CSC; Exhibit A-1). The Colorado Sand Company II, LLC's (hereafter "CSC") proposed Kersey Mine (hereafter, referred to as either "the Mine" or "the Site") encompasses the S1/4 of Section 34, T06N, R63W of the 6th Principal Meridian and all of Sections 2, 3, 10, 11, 14, and 15, T05N, R63W of the 6th Principal Meridian in unincorporated Weld County, Colorado (as defined by the "affected area" metes and bounds description provided in Exhibit A-1 and subject to certain exclusions attributable to utility easements, etc.). For purposes of this application, CSC considers "affected area" and "permit area" to be effectively equivalent, and such terms are or may be used interchangeably. Per Rule 6.4.1(2) -- The main entrance to the mine site shall be located based on a USGS topographic map showing latitude and longitude or Universal Transverse Mercator (UTM). The operator will need to specify coordinates of latitude in degrees, minutes, and seconds or in decimal degrees to an accuracy of at least five (5) decimal places (e.g., latitude 37.12345 N; longitude 104.45678 W). For UTM, the operator will need to specify North American Datum (NAD) 1927, NAD 1983, or WGS 84, and the applicable zone, measured in meters. This location (Exhibit A-2: Site Topography) is approximately 55 miles Northeast of the Denver, Colorado metropolitan area; and, as depicted on the United States Geological Survey (USGS) "Kersey, Colorado" 7.5° topographic quadrangles, is approximately 4.9 miles south from the intersection of Weld County Road 67 and Colorado Highway 392. Mine Entrance: The Mine will be accessed by exiting Colorado Highway 392, traveling southbound on Weld County Road 67, then traveling eastbound on County Road 68 to a privately controlled segment of Weld County Road 64. To approach the Mine, head south on Weld County Road 64, passing through the Wells Ranch guard shack, and continuing south for approximately 2.7 miles. The Kersey Mine ingress and egress points will be located on the privately controlled section of Weld County Road 64 (Exhibit A-3 General Site Location; Exhibit A-4: Site Access). The approximate coordinates for the mine entrance will be 40.43952 North Latitude; 104.41867 West Longitude, and the entrance will be equipped with a secondary security gate and appropriate signage at such time it is so -authorized, per a to -be -finalized road -use agreement with private parties (further discussed below). After entering the mine (i.e., the Permit Area) the mine access road will extend southeasterly approximately 2,857 - ft., at which point it will turn east and widen from 20 -ft to 155 -ft leading to the mine offices, employee/visitor parking, and continuing to the scales/loadout area for finished product loading. (Exhibit A-5: Mine Access Route). Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit A Page 2 Mine Exit: The approximate coordinates of the mine exit will be 40.43587 North Latitude; 104.40111 West Longitude. Upon leaving the privately controlled segment of Weld County Road 64, mine -related traffic will travel west along Weld County Road 68, then north along Weld County Road 67 extending to Colorado Highway 392. CSC notes that the southerly extension (i.e., the "Private Access Only" portion) of Weld County Road 64 is a dedicated "private" access road for industrial use only (and is signed as such) that will be maintained under the purview of a joint operating agreement to be established between CSC and other parties. The Permit Area (or "affected area") will be, in its entirety, located on and within the fee -simple (i.e., privately) owned surface controlled by CSC, as lessee and/or its assigns, with access to Wells Ranch being controlled/limited by a secure, gated entry 400 south of Weld County Road 68 and/or four -strand, barbed-wire perimeter fencing along Weld County Road 68, immediately interior to the north edge of sections 21, 22, and 23. The ranch holdings are similarly fenced and/or equipped with secure, gated -entry access points along the full extent western periphery in areas proximal to Weld County Road 64. The establishment of a dedicated mine ingress/egress along the limited access portion of Weld County Road 64 will serve to significantly reduce or mitigate potential conflicts with other ranch activities, to include routine ranch maintenance as well as that associated with oil and gas field traffic that has previously been granted access to the ranch. The Permit Area will encompass approximately 6-1/4 "sections", or approximately 4,018 acres, within the Wells Ranch lands, rangeland which is zoned "agricultural" and largely utilized for grazing, as well as oil and gas activities. Specifically excluded areas include various parts of various sections that contain easements owned by the other parties described in the land survey plat (Exhibit A-1), numerous discrete (i.e., non-contiguous) limited - acreage areas (with appropriate set -back buffers) associated with oil and gas wells and ancillary facilities. All roadway construction specifics are outlined in Exhibit D-2. To date, no street address has been assigned to the Site. However, CSC anticipates that an address will be issued after Weld County review/approval of the Kersey Mine Use by Special Review (USR) application (which is, in turn, subject to DRMS approval of this 112(C) Reclamation Permit Application), at which time CSC will provide the address to DRMS. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit A Page 3 EXHIBIT A-1 METES AND BOUNDS PARCEL DESCRIPTION Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 ACCESS ROAD EASEMENT 1 AN ACCESS ROAD EASEMENT, BEING 25 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE, LOCATED IN SECTIONS 22, 27, AND 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6T" PRINCIPAL MERIDIAN, WELD COUNTY, COLORADO, BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: COMMENCING AT THE NORTHWEST CORNER OF SAID SECTION 22, AS MONUMENTED BY A FOUND 3-1/4" ALUMINUM CAP ON NUMBER 6 REBAR STAMPED "LS 10855, 1997," WHENCE THE NORTHEAST CORNER OF SAID SECTION 22, AS MONUMENTED BY A FOUND 2-1/2" ALUMINUM CAP ON NUMBER 6 REBAR STAMPED "LS 9644, 1995," BEARS NORTH 89°21'58" EAST A DISTANCE OF 5,346.70 FEET, BEING THE BASIS OF BEARINGS IN THIS DESCRIPTION. THENCE ALONG THE NORTH LINE OF THE NORTHWEST QUARTER OF SAID SECTION 22 NORTH 89°21'58" EAST, A DISTANCE OF 1,362.64 FEET TO THE POINT OF BEGINNING 1 (POB 1); THENCE DEPARTING SAID NORTH LINE OF THE NORTHWEST QUARTER SOUTH 04°12'29" WEST, A DISTANCE OF 408.77 FEET; THENCE SOUTH 00°26'01" EAST, A DISTANCE OF 1,112.82 FEET; THENCE SOUTH 01°04'49" EAST, A DISTANCE OF 977.55 FEET; THENCE SOUTH 04°55'15" EAST, A DISTANCE OF 310.38 FEET; THENCE SOUTH 01°24'54" EAST, A DISTANCE OF 725.75 FEET; THENCE SOUTH 03°40'51" EAST, A DISTANCE OF 230.00 FEET; THENCE 242.55 FEET ALONG A CURVE TO THE LEFT HAVING A RADIUS OF 268.00 FEET AND A CENTRAL ANGLE OF 51°51'20" (CHORD BEARS SOUTH 29°36'31" EAST, A DISTANCE OF 234.36 FEET); THENCE SOUTH 55°32'10" EAST, A DISTANCE OF 1,097.60 FEET; THENCE 358.64 FEET ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 370.00 FEET AND A CENTRAL ANGLE OF 55°32'10" (CHORD BEARS SOUTH 27°46'05" EAST, A DISTANCE OF 344.76 FEET); THENCE SOUTH 03°13'21" EAST, A DISTANCE OF 1,671.96 FEET; THENCE SOUTH 05°36'03" EAST, A DISTANCE OF 1,103.93 FEET; THENCE SOUTH 06°10'05" EAST, A DISTANCE OF 1,104.87 FEET; THENCE SOUTH 07°42'00" EAST, A DISTANCE OF 1,210.07 FEET; THENCE SOUTH 07°45'22" EAST, A DISTANCE OF 636.71 FEET; THENCE SOUTH 06°28'24" EAST, A DISTANCE OF 490.36 FEET; PAGE 1 OF 3 THENCE 233.44 FEET ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 332.00 FEET AND A CENTRAL ANGLE OF 40°17'10" (CHORD BEARS SOUTH 13°40'11" WEST, A DISTANCE OF 228.66 FEET); THENCE SOUTH 33°48'46" WEST, A DISTANCE OF 1,368.81 FEET; THENCE 94.05 FEET ALONG A CURVE TO THE LEFT HAVING A RADIUS OF 135.00 FEET AND A CENTRAL ANGLE OF 39°54'57" (CHORD BEARS SOUTH 13°51'18" WEST, A DISTANCE OF 92.16 FEET); THENCE SOUTH 06°06'11" EAST, A DISTANCE OF 115.29 FEET; THENCE SOUTH 10°56'56" EAST, A DISTANCE OF 572.33 FEET; THENCE SOUTH 16°49'13" EAST, A DISTANCE OF 459.88 FEET; THENCE SOUTH 20°52'15" EAST, A DISTANCE OF 352.88 FEET; THENCE SOUTH 46°56'36" WEST, A DISTANCE OF 89.73 FEET; THENCE SOUTH 43°00'58" WEST, A DISTANCE OF 437.74 FEET; THENCE SOUTH 45°21'39" WEST, A DISTANCE OF 319.42 FEET TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, S1/2) OF SAID SECTION 34 AND THE POINT OF TERMINUS 1 (POT 1), FROM WHICH THE SOUTH 1/16TH CORNER OF SAID SECTIONS 33 AND 34, AS MONUMENTED BY A 3-1/4" ALUMINUM CAP ON A 30" NUMBER 6 REBAR, BEARS SOUTH 89°19'34" WEST, A DISTANCE OF 1,968.42 FEET. SAID EASEMENT CONTAINING 786,275 SQUARE FEET OR 18.05 ACRES, MORE OR LESS, ALSO BEING 15,725.5 FEET OR 953.1 RODS. GRID DISTANCES ARE BASED OFF U.S. SURVEY FOOT PER COLORADO NORTH STATE PLATE (NAD83) NORTH ZONE. SIDELINES OF SAID EASEMENT TO BE TRIMMED OR EXTENDED TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, S1/2) OF SAID SECTION 34. TOGETHER WITH: ACCESS ROAD EASEMENT 2 AN ACCESS ROAD EASEMENT, BEING 25 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE, LOCATED IN SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6T" PRINCIPAL MERIDIAN, WELD COUNTY, COLORADO, BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: COMMENCING AT SAID NORTHEAST CORNER OF SAID SECTION 22; THENCE SOUTH 11°12'34" EAST, A DISTANCE OF 14,227.55 FEET TO THE POINT OF BEGINNING 2 (POB 2); THENCE SOUTH 50°27'13" EAST, A DISTANCE OF 119.24 FEET; THENCE SOUTH 56°06'26" EAST, A DISTANCE OF 163.79 FEET; THENCE SOUTH 61°11'48" EAST, A DISTANCE OF 244.44 FEET; PAGE 20F3 BRANDON MOSER, PLS 38412 THENCE SOUTH 62°16'17" EAST, A DISTANCE OF 185.58 FEET; THENCE 365.36 FEET ALONG A CURVE TO THE LEFT HAVING A RADIUS OF 374.00 FEET AND A CENTRAL ANGLE OF 55°58'22" (CHORD BEARS NORTH 89°44'32" EAST, A DISTANCE OF 351.01 FEET); THENCE NORTH 61°30'29" EAST, A DISTANCE OF 141.08 FEET; THENCE 101.49 FEET ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 77.00 FEET AND A CENTRAL ANGLE OF 75°31'05" (CHORD BEARS SOUTH 80°43'59" EAST, A DISTANCE OF 94.30 FEET); THENCE SOUTH 42°58'26" EAST, A DISTANCE OF 107.57 FEET; THENCE SOUTH 35°18'08" EAST, A DISTANCE OF 226.60 FEET TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, S1/2) OF SAID SECTION 34 AND THE POINT OF TERMINUS 2 (POT 2), FROM WHICH THE SOUTH 1/16TH CORNER OF SAID SECTIONS 34 AND 35, AS MONUMNETED BY A 3-1/4" ALUMINUM CAP ON A 30" NUMBER 6 REBAR, BEARS NORTH 89°17'14" EAST, A DISTANCE OF 1,332.86 FEET. SAID EASEMENT CONTAINING 82,760 SQUARE FEET OR 1.90 ACRES, MORE OR LESS, ALSO BEING 1655.1 FEET OR 100.3 RODS IN LENGTH. GRID DISTANCES ARE BASED OFF U.S. SURVEY FOOT PER COLORADO NORTH STATE PLANE (NAD83) NORTH ZONE. SIDELINES OF SAID EASEMENT TO BE TRIMMED OR EXTENDED TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, S1/2) OF SAID SECTION 34. I, BRANDON MOSER, COLORADO PROFESSIONAL SURVEYOR IN THE STATE OF COLORADO, DO HEREBY CERTIFY THAT THIS DESCRIPTION AND THE FIELD SURVEY ON THE GROUND UPON WHICH IT WAS BASED WERE PERFORMED BY ME OR UNDER MY DIRECT SUPERVISION. THIS DESCRIPTION WAS PREPARED FOR AND BEHALF OF PFS, LLC DBA ASCENT GEOMATICS SOLUTIONS. PAGE 3OF3 .>or.N..4' ......a':.e........, ca LAND SURVEY PLAT wow a war a new. v. IN ana.” WWI. I IRIS • II Hal nen. le Wen. a PART OF TIE SOUTH &ISM F OF SECTION 34. TOWNSHIP 6NOR TN. RANGE 69 WEST 11111P Ill SWIMS 2.3. II. IQ N.6 IS, TOWNSHIP S NORTH RANGE 63 NEST. 6M PAl N _ WELD COUNTY. 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I J- " al I SEC 3 T5 R63W AEU • i.YT.pf len - mos L •I- 1 I I ``,� x 3_ '\�„I SE1/4 - F-- I�1 --- _ - r III ,c _4- T6 N —7'5 N EININDLLOND • sAr 2 T5 R63W L� -� 9w13S�T a+m. 41,44 .7O.ICCT W .ry ar. tit .o srw roMIEVEY RAT 4111.4 48. 14,11‘1421,441441411. w.11 n1.r u.a.u+.�iv1 4 _ ,a»aN..aMO w�,a1 LAND SURVEY PLAT PART OF THE SOUTH ONEHAl i OF SECTION 3", TOWNSHIP •RORTN. RANGE 53 NEST 5111 P.M SEC 3 SECTIONS J. J. 11, W. 10. S IS, TOWNSHIP S WDRTN, RANGE 43 NEST. 6TH P M •—•}. -=-j7'5N R63W_____._ WELD COUNTY. COLORADO r' 4 j \ am, rW.Y> VRF-1'�_______ — ;"'I =`n w SEC 9 7'5N R63W 14 ,'4, SEC 10 t I 7'5N R_63W, --..Z ,'AMA - i,aN,Ip MI. - •1150, /[RC' ., P. 1 ' Ec 1 .0I 11,E J i SLII% NE1/4 L`1 ,......» •1 _ ' �L I N �'I sA,' �‘, 'l,,,2t ti w�w,� ,I a , ZH SW1/4 MEM SEC 15 T5N R63W 1 i SF'1/4 1 C.-. rats.. -7. ___-_ —•-- 'fNts.-7. uiuon '1 owvaW �1 r —--�#ILDEW -�a..m�, t. SEC 11 T5N R63W k xrrlr r.4,µ ��OW� Tw T 4 aaMA LU{O SURVEY PLAT nv11a ny •M'm.4.411III.I. 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J. 11, 10 106 16, ICIONSIM 6 NORTH, RANGE 67 NEST, eTH PN T6 R63W WED COUNTY.COLGR"GG mam w (NiaPl PI NINON w !•1 N0. 4 N0. 2 je �,e... NW1/4 SEC 3 T5 R63W 8�l �aea'�1 ill SW1/4 n , ;fir , Os AA �, 66614 1 N dtrNN d TNN NAM ..N,,, .101141011:1 1 N0. ;2 N0. SEC 2 — f T5 R63W - --==— AlfX.1 -- T.ns mos Apn - most K'RR .F y6 a w� SE1/4 °.. =.".4.; 09.3,640 010111/1 OblirtadIU n�• AIM' SEC 11 T5 R63W 111 $a + W1. ESQM!ALOSES Ar n r...TINevww rr• CAUME1.0 —UM SEC 1 T5 R63W TITTMOLITTTT r_� • suriKlUO .ROJECT W 4.v sows tit WONIMUCTOD c LAHro5URVµY PLST 1.4rrINI • 0,64.11 If fill la urun 144 ..wm ILVA.F HI n11 .c�rwR UP�AAN. l61 SEC 10 T5N R63W W.• w SEC 2 T5N R63W LAND SURVEY PLAT PART OF IRE SOUTH ONElNLF OF SECTION 34, TONd&6P 6NORTH. RANGE 63 VIEW 6TH P.M SECTIONS 7. 3.11, 16. 10.8 16, TOWNSHIP a NORTH, RANGE 63 NEST. 6TH PM WELD COUNTY. COLORADO sw.anio 4.• Dual 66 ..rMvrs .r I \... (4 i ' ,'ADD >.�.. / 0.6....1-....e �. `a- ��, __. jl 4' , l ND/4 i i ill ....A�}- ,- NWf/4 " Q.).1 ,- n n w......r_. v,nn Lim'»' >r ` aati,..�wrrw 1:J: f IP . arK: .,.ow �rw.e,rw jHzazi .wr1a.aw� _-_- _____-_ msTwe& Su.nT PT_-___ It mum UrNTM SEC 11 7'5N R63W NL650.,01 son - SALM, Arm .� ziorwhali SEC 14 T5N R63W EMOARLIMSO A+ ..r.r�rr,.r imaFair SEC 12 T5N R63W z. �., �RDJECT W www. w•. MY. JIM,WILTZI LANDSURVEY RAT !And, IIIIIVIVINIMMGAII lir.. 11 VC L.'. r.'w•ri.'e1..W.n l...wn1 ntl �Ya . 1a'1 4•d. naw LAND SURVEY PLAT SEC OF THE SOUTH ONEMALP OF SECTION TO.TOWH.91P 8 NORTH. RANGE 65 WEST. 6TH PM SEC 11 SECTIONS z. J. 11. 10. 10. • 15, TOPHISIP 5 NORTH, RANGE 33 WEST. 6TH PM - , T5N R63W WELD COUNTY. COLORADO I V.1F1.Nr. -(1 SEC 15 I` TSN R63W 1! NW 1;'4 NET; r S P.C 14 T5N R63W - H.610,1N SO A 1 OlI M 1CRPY �I +Ns, o.r.P.... Sfr1/4 d UtIll 4,1 nl lerW r. sD/4 ® _, a,NPO.. I ...PISS... jV I anm'. lxfNl�wT.ofi1 SEC 23 ` T5N R63{V EPECIMUMENJ — A WORM, a .a..... WPM.. puliasamp wow SEC 13 T5N R63W • �� y,�m [ `�1 '��T A MOO, •"RO.iCCT W ow art w1 VPlr LAMITWIWEY PLAT mrr1lnv+'uwusnNi I..H M l..nunlcnaa aPM 4i t.n.OF.0... 'Mt.! Y1111 YM'r14 WO W. OH � rm0060r IOU Exhibit A Page 4 EXHIBIT A-2 SITE TOPOGRAPHY Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 0 a_ U a - LL O a o o o� Q 4 6 0 U w 00 0 31 Wel 3 5N 63W ACCESS ROAD SITE ENTRANCE: LAT: 40°26'22.29"N LONG: 104°25'7.20"W KERSEY MINE PERMIT AREA BOUNDARY _ I PLANT AREA BASE MAP: USGS 7.5 MINUTE TOPOGRAPHIC QUADRANGLE, KERSEY QUADRANGLE (NAD 83). STATE PLANE ZONE: COLORADO NORTH (501) DATA SOURCES: TRC PRIVATE ROAD 0 2,000 4,000 D FEET 1:66,000 1" = 5,500' NM PROJECT: TITLE: DRAWN BY: SITE EXIT: LAT: 40°26'9.13"N LONG: 104°24'4.00"W COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO SITE TOPOGRAPHY J.STRONA CHECKED BY: B. TRACY APPROVED BY: DATE: E. PENATE JUNE 2024 C PROJ.NO EXHIBIT A-2 535891 526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO KERSEY MINE Exhibit A Page 5 EXHIBIT A-3 GENERAL SITE LOCATION Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 0 4,000 8,000 0 FEET 1:120,000 1" = 10,000' 4866ft 2 CR68 Access Road (Connects to HWY 392) CR68 4S73ft I Ch7 erly n e 0 d 7O! LO U co cc U CF 66 Kersey C J PERMIT AREA BOUNDARY Rive, Q c w Q c. o - Haul Road 15 30 MILES 1:2,000,000 1" = 166,667' ..:t Rrcinr Mour'al National Park d Arapaho C9 Na ioral Forest a� c m IZt C3 4_ c/ Fury: Collins Lotgmant Bcuider O OGr�el�l3�, Kersey Derlve r SITE L 5446ft 4924 ft Fart Morgan PERMIT AREA BOUNDARY HAUL ROAD BASE MAP: WORLD TOPOGRAPHIC MAP ESRI (2023) DATA SOURCES:TRC PROJECT: COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO TITLE: GENERAL SITE LOCATION WY i NE DRAWN BY: J.STRONA PROJ.NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: D. MILLER DATE: JUNE 2024 EXHIBIT A-3 <i "RC 526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 NM FILE: COLORADO SAND CO_KERSEY MINE Exhibit A Page 6 EXHIBIT A-4 SITE ACCESS Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 6 O F 0 O a a 3: w g: LL SEC 01 SEC 06 SEC 05 SEC 04 -SEC 03 SEC 02 SEC 01 SEC 06 EC OS SFr. 19 SEC SEC 08 I. -'4'9.?4 • - - v SEC 1 G SEC 11 ft ♦ S7^ I Ar87 j,- SEC SEC 07 08 n o c 7J SEC 18 SEC * l.y Rsdih6v ( 1 F SEC 13 V v 392j a SEC 17 '� SEC 16 n SEC 15 c c E. SF': SEC 13 r� h , Z co cfl Z '- . Z THIS PORTION OF VACATED PER WELD C• SEC 20 EASEMENT' NORTH LINE, S: ELD CR68 IS UNTY ONLINEet, SEC 21 TARTS AT CTION 22 SEC 22 SL:'" e, Z ca County R:idU G3 SEC 29 SEC 28 27 29 County a1 6N 63W RD. l G4 EASEMENT WRITTEN TO IN THE SOUTH HALF OF T HE NORTH LINE E SOUTH HAL OF SECTION 34 c -S 36 SEC 32 SOUTH HALF, Si T6 SEC 33♦zo UTH HALF • R63W S34� C 34 SEC 35 SITE EXIT: LAT: 40°26'9.13"N LONG: 104°24'4.00"W SEC 31 C 32 07' 934100003 4'7y 6N 62W I 5N 62W P - _ ` 5N 63W SEC OS SITE ENTRANCE: LAT: 40°26'22.29"N LONG: 104°25'7.20"W SEC 03 PLA T r- AREAL L - -I SEC 02 SEC 01 SEC 04 T5N R63W S03 096503100009 T5N R63W S02 096502100001 � SEC 07 S Z 119 C 08 KERSEY MINE PERMIT AREA BOUNDARYcc, 4756ft T5N R63W S10 o o cc 8,) ca SEC 10 o N O O w w T5N R63W S11 096511100002 SEC 1 m Z L27 SJ Z Lo t9 Z in =C 18 SE ; 17 SEC 17 _ T5N R63W S15 096515100004 SEC 15 T5N R63W S14 096514100001 SEC 14 SEC 13 I\ --6.Ev- GCC19 SCC20 SCC 24 SEC 19 SE'20 I 2,000 4000 CII FEET 1:66,000 1" = 5,500' PROJECT: COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO Q KERSEY MINE PERMIT AREA BOUNDARY _ I PLANT AREA PARCEL BOUNDARY ACCESS ROAD TITLE: SITE ACCESS NOTE: PARCEL IDENTIFICATION NUMBER DISPLAYED BENEATH TOWNSHIP, RANGE, SECTION ID BASE MAP: WORLD TOPOGRAPHIC MAP ESRI (2023) DATA SOURCES: TRC WY I NE DRAWN BY: J. STRONA PROD. NO.: 535891 CHECKED BY: B. TRACY N APPROVED BY: E. PENATE EXHIBIT A-4 4y ,ill DATE: JUNE 2024 r C CO - : SUITE 150 LAKEW00D, 7 TR C 1526 COLE BOULEVARD BUILDING 3, O3.792.5555 NM FILE: COLORADO SAND CO KERSEY MINE Exhibit A Page 7 EXHIBIT A-5 MINE ACCESS ROUTE Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 OWNER: CO 392 (HIGHWAY TO GREELEY AREA) NoCo SOD LEGEND 0 ACTIVE/ABANDONED GAS WELL CENTRAL DELIVERY POINT FACILITY STRUCTURE GAS WELL ACCESS ROAD CO 392 TO MINE PROPOSED ROUTE ON EXISTING ROADWAYS CO 392 TO MINE PROPOSED ROUTE ON PROPOSED ROADWAYS DIRT/GRAVEL ROAD PAVED ROAD PERMIT AREA BOUNDARY PARCEL BOUNDARY CO 392 (HIGHWAY TO CO 14 / BRIGGSDALE) )-]COUNTYR AD 67 COUNTY ROAD 68 (COLLECTOR ROAD) WELLS RANCH CHEVRON PROCESSING PLANT COUNTY ROAD 64 - PRIVATE ROAD / CONTROLLED ACCESS ONLY PERMIT AREA BOUNDARY 0 1250' 2500' I � MINE SITE ENTRANCE (NOTE 1) 5000' SCALE 1" = 2500' NOTES: 1. MINE ACCESS SHALL BE RESTRICTED BY MEANS OF SECURITY GATE & SIGNAGE. 2. PROPERTY ACCESS RESTRICTED BY WELLS RANCH GUARD SHACK. 3. SEE PROPOSED ROADWAY ON EXHIBIT D-1. WELLS RANCH GUARD SHACK (NOTE 2) PRIVATE ROAD PRIVATE RESIDENCE MINE SITE EXIT (NOTE 1) PROPOSED SAND PLANT COLORADO SAND COMPANY II, LLC PROJECT: KERSEY MINE TITLE: MINE ACCESS ROUTE DRAWN BY CHECKED BY: GW AJR APPROVED BY: DK DATE: JUNE 2024 SCALE: 1" = 2500'-0" PROD. NO. 53589 0000.0000 FILE NO A-5 MINE ACCESS POUT G EXHIBIT A-5 =2 Tr2C 1526 Cole Blvd, Suite 150 Lakewood, CO, 80401 Phone: (303) 792-5555 Fax: 970.484.3250 Exhibit B Page 1 EXHIBIT B INDEX MAP Per Rule 6.4.2 -- An index map showing the regional location of the affected land and all roads and other access to the area. A standard U.S. Geological Survey topographic quadrangle or equivalent is acceptable. Scale criteria need not be followed on this map. Please refer to Exhibit B-1 for an "Index Map" depicting the regional location of the Kersey Mine. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit B Page 2 EXHIBIT B-1 INDEX MAP Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 - ` 143 i - - -- I ley 6-) U `` o 392 f a f r� ED- tiV,`: I- .r co tvttD M to i `•� e, r Z l � Z ca - - - CO s CO ` — • \� r 41 \ I y — A 3 1 )I 31 Weil� --N, r SITE EXIT: LAT: 40°26'9.13"N LONG: 104°24'4.00"W _ 63 6N 62W , ' (� J - 5N 63W 5N 62W '. ` SITE ENTRANCE: LAT: 40°26'22.29"N LONG: 104°25'7.20"W : - PLA AREA Tr- L _ _I 6 -y ,-.va 4 cMo � d KERSEY IFERMITtREA IN, 1 En MINE BOUNDARY CI �4V 1. 4 V 1 � co 4 WO n`. co . tIy qi '' � Lo W� `• —. --- Q es \ f 4 %?';', _ @l P \ ��' - - hr _- � nix o 2,000 4 000 FEET 1:66,000 1" = 5,500' PROJECT: COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO ACCESS ROAD ® KERSEY MINE PERMIT AREA BOUNDARY _ I PLANT AREA BASE MAP: USGS 7.5 MINUTE TOPOGRAPHIC QUADRANGLE, KERSEY QUADRANGLE (NAD 83). STATE PLANE ZONE: COLORADO NORTH (501) DATA SOURCES: TRC TITLE: INDEX MAP wy I NE DRAWN BY: J. STRONA PROD. NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: E. PENATE EXHIBIT B-1 DATE: JUNE 2024 J CO _ 1526COLE BOULEVARD BUILDING 3, E 11� TRSUITE 150 ULEVAR OD, CO 80401 PHONE: 303.792.5555 t w I NM FILE: COLORADO SAND CO KERSEY MINE Exhibit C Page 1 EXHIBIT C PRE -MINING AND MINING PLAN MAP(S) OF AFFECTED LANDS Per Rule 6.4.3 — One or more maps may be necessary to legibly portray the following information: (a) All adjoining surface owners of record; (b) The name and location of all creeks, roads, buildings, oil and gas wells and lines, and power and communication lines on the area of affected land and within two hundred (200) feet of all boundaries of such area; (c) The existing topography of the area with contour lines of sufficient detail to portray the direction and rate of slope of the affected land; (d) The total area to be involved in the operation, including the area to be mined and the area of affected areas (see definition of "Affected Land"); (e) The type of present vegetation covering the affected lands; and W In conjunction with Exhibit G — Water Information, Rule 6.4.7, if required by the Office, further water resource information will be presented on a map in this section. Show the owner's name, type of structures, and location of all significant, valuable, and permanent man- made structures contained on the area of affected land and within two hundred (200) feet of the affected land. (g) (h) In conjunction with Exhibit I — Soils Information, Rule 6.4.9, soils information may be presented on a map in this section. (i) Aerial photos, if available, may be included in this section. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit C Page 2 EXHIBIT C-1 RELEVANT FEATURES AND ADJOINING SURFACE OWNERSHIP Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 C:\PW WORKING-TRD\DD763B24\C.1 MINE RELEVANT II 'A6a REC. NO.4146283 AG CAT P°EPAT ERAL .P MIDSTREAM CH ( 09 (R, S0 1400 E 2646.02' IM, AAAA ,. DUKEENERO E �o • STATE OF COLORADO oBL °AA®LLE RFC NO 4146283 8 OA3A ASSOCIATED NATURAL GAS INC - s LW RANCH COMPANY 4B PIPELINE ROW NOBLE MID r C.No 81 SERVICES. L. • .Or • NATURAL "E PIPEEI � STATE OF COLORADO TOTEINZI TSCITINXI 83 RSHIADWG-6/Sn Si OF SERI. 34 48' PIPELINE EASEMENT E ENERGY WELD SERVICES LP... RE 5091] 20"W 3635:07' (M REC. NO. 328.59 06 ENERGT.I NA URAL GAS PIPELINE OB, ENERGY. INC. V TOWN(NOT °) ARMING WIDTH PIPELINE E.EMENT COLORADO C N0 4281585 ER DEVCO SECTION 3 LP I_ 135N ROW AN PIPELINE — OB NEnBLEENERG,-IN° NATURAL GAS PIPEp NE I- SPIPIPELINE PE E EA SLP MIDSTREAM, $ u °ERNIGESLP 07. _ ° aE3018431LIE a C�o D 38; L° a0439.96 CH=Ea� , 'w, MI g 3a3B,(A) REC. NO. 307384 AAI s, (R)DCP MIDSTREAM. �SERVICES I nE as IMI STION RANCH R W AEN c9PEIENE]lNE-RGT. I- I NE 1�i,�28.62: (264001 (R) .2 NATURALS. PIPELINE PDC ENERGY INC O DCP MIDSTREAM LP REC NO 3797974M GB' PIPELINE EASEMENT DU. ENERGY FIELD SERVICES , REC NO 3250.9 MOOT 33 WE= El CEIVER SITE EASEMENT N89.21'0,CH(26G440.00(R) DUKE EC NO 35 SERVICES LP v -- DUKE a' PIPELINE EASEMENTLD S LP REC. 0.3250555 _ N � _ as REG NO 3977377 aPRAIRIE I(N0�) NOTESER S PERMIT38 ��MIPELINE I M PIPELINE EAS DDPMIDSTREAM,�P ° KI REC. NO. 33Ra965 DUNE ENERGY III REG. NO. 30„384 5D i S O ® "° 6 NDK 5 OK P u*�E RFC NO. 3119902 �A AAA -8, 8LDUDS SA:P=06Z%':O'RVICES _\R. NO 820.78 • o�\ TS R3wd, � F RECNO 2030. •IN NEM5RANCN°z xS � (2634.719 N86.22.03 8 29'1 60' PIPELINE ROW DUKE ENERGY FIELD SERVICES Iv REC. NO. .81170 DCP REAM LP NEC N 359.63 DUKE ENERGy FIELD SERVICES LS' REC. NO 30773. 40 pIPELINE ROW I. N69122' 3' E 266S 2B IM1 o. NOBLMIDSTREAM MC .,43 EE NO 4146383 NOBLE ENETURA_ GAS RGY. 7,� J® 1.= E NOTP SPAREC NO 3594663 DUKE REC. Nor^ o2,PIPELINE ROW 30' PIPELINE ROw G. NO. 3516967 GLD-35.87 CH (2631..1.) (R, 20. PIPELINE ROW REC. NO 3556401 `V . NATURAL GAS PIPELINE , NOBLE ENERGY. INC. TUNAS GAS PIPELINE'1 INTO AmocoProduction BER Company M API# 05-123-07644 Well P&A in 2001 TIO =JX1I1TNLLC 50 PIPEUNE EASEMENT , DUKE ENERGY ERVICES LP — • REC NO.5 59 O®ADUKE ENTRZVEN.O =IC. LP oDR4=6 ENOBBV/v REC ND L°7,56, SLP 0 WOK. 00 CH (2640.00 oa„ DR, N001304E 'ROI E263680(M)) O=355,E39 86 M, NE SC NATURDSTTRREAM, LP g, oG `T"°\PIPELIN148° SERVICES LP AW RECEIVER SITE EASEMENT NOBLEENERGNATURAL GAS . 3255 P NATURAL NOB,ENERGY.NCPIPELINE\D MOBTREAMRAL OAS LP o� NATURAL GAS PIPELINE OP G:COMPANYLLC I CH, 6 NATURAL GAS PIPELINt. AAA 64,L. wELL5 RANCH 50' PIPELINE ,SEMENT DUKE ENERGY FIELD SERVICES LP zsE6 sz'' (a, o nR G BAM LP O91J — \� , s 13.42I NATURAL GAS PIPELINE DCP MIDSTREAM LP/ CH (2634.711) nA61')(R) Na014S7E 'IM7 WELL PERMIT NUMBER 619490 ROGRYM PPEnNEROW DRELLG r_, (ARPROX LOC, NATURAL GAS OUP MIDSTREAM PIPELINE NATURAL GAS PIPELINE DCP MIDSTREAM. LP SECTION 16 — WE0 H NATURAL GAS PIPELINE BONANZA CREEK ENERGY OPEMTING COMPANY LLC BONANZA CREEK ENERGY oc 3OPERATING COMPANY LLc t RI : 586.36.11.94/39.64 25..1'(16) ) SECOON a A 6. OPERATING ANY LLC NAT., G.ZS PIPELINE OPERATINGCOMPANVGLC U 23 PIPELINE WDCP P REC NO 3537452 '$I 0 os> EH�=595o93,)M;) STATE OF COLORADO MT PIPELINE EASEMENT COLORADO LIBERTY PIPELINE REC. NO.466744.2 • BO WELLS RANCH WELLS RANCH LLLP • SECTION TO 70 RANCH Ulf NEL CRUDE TERMINALS LLC 1. PERMIT AREA BOUNDARY RUNS COINCIDENT WITH SECTION LINES, EXCEPT FOR A PORTION OF THE W1/F OF SECTION 30 TO THE E1/4 OF SECTION 34. 2. TOTAL AFFECTED AREA: 4,015 ACRES. 3. PROPERTY CANER IS DISPLAYED BENEATH TOWNSHIP AND RANGE DESIGNATION. T. BURROWING OWL HABITAT - NO DISTURBANCE TO PRAIRIE DOG TOWNS FROM MARCH 1S - OCTOBER 31. 5. EXISTING WELL TO BE PLUGGED AND ABANDONED E SEQUENCE AR. 6 DECOMMISSION EXISTING TANKS AND EPIEA EQUIPMENT AT WELLS IN MINE SEQUENCE AREA. 600 330 0 660 3320 SCALE OE EXISTING BUILDING SECTION DIVIDE EXISTING UNDERGROUND GAS EXISTING ROADWAY EXISTING OVERHEAD ELECTRIC EXISTING EASEMENT PERMIT AREA BOUNDARY EXISTING FENCE SECTION QUARTERS MINOR CONTOUR MAJOR CONTOUR OIL& GAS WELL COLOR LEGEND ' WELL OWNER- AMOCO PRODUCTION COMPANY EKENERGY LOWNER - HIGH SUMMIT OIL &GAS WELL OWNER - NOBLE ENERGY WELL OWNER -PDC ENERGY • 9 WELL OWNER -UNITED STATES EXPLORATION OIL EGEND • WELL - G DLDEATIDN O WELL - SHUT IN WELL - P BANDONED WELL • PRODUCING (•) WELL- TEMPORARILY ABANDONED SYMBOL LEGEND. - PROPERTY GATES ALAND SURVEY PIATMATIONS • ALIQUOT SURVEY CORNER In PRAIRIE DOG TOWNS (SEE NO E4 ® WELL CONSTRUCTED WATER JUNE 2024 EXHIBIT C-1 COLORADO SAND COMPANY II, LLC KERSEY MINE RELEVANT FEATURES AND ADJOINING SURFACE OWNERSHIP Tac TRC ENVBiONMENTAL CORP. mew �i�g�sa°WPM, DE IGN BY OP BY 0 BY Exhibit C Page 3 EXHIBIT C-2 AFFECTED AREA AND LOCALIZED TOPOGRAPHY Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 C\PW WORKING-TRD\DwS3Bz4\C CTED ARE AND LOCALIZED TOPOGRAPHr DWG-s/s/z4 or PERMIT AREA BOUNDARY 06 SECTION • STATE OF COLORADO !g A • • SECTION S S LW RANCH COMPANY • • rt PERMIT AREA BOUNDARY STATE OF COLORADO [TION 21 70 RANCH. — f 06 WELLS RANCH (NOT INCLUDED IN PERMIT AREA) OIL AND GASEQUIPMENT S}OF WELLS RANCH AREA:160.04 ACRES Ol ND GAS PAOLI., SECTION WTEVItZCH AREA: 639.S1ACRES OIL AND GAS FACILITY \ I-8� :069 hj AREA: 643.36 ACRES SEE NOTE 5 PERMIT AREA BOUNDARY al ° JIL AND GAB EQUIP *Z. OIL AND GAS EQUIPMENT SECTION 15 OIL AND GASEQUIPMENT I. MIT AREA BOUNDARY RUNS COINCIDENT WITH SECTION LINES, EXCEPT FOR A PORTION OF THE W1/4 OF SECTION 34 TO THE E1/4 OF SECTION 34. 2. TOTAL AFFECTED AREA: 4,01.8 ACRES. 3, PROPERTY OWNER IS DISPLAYED BENEATH TOWNSHIP AND RANGE DESIGNATION. 4. BURROWING OWL HABITAT - NO DISNRBANCE TO PRAIRIE DOG TOWNS FROM MARCH 16 - OCTOBER 3.1. EXISTING WELL TO RE PLUGGED AND ABANDONED FOR MINE SEQUENCE AREA. 6. DECOMMISSION EXISTING TANKS AND EQUIPMENT PRESENT AT WELLS IN MINE SEQUENCE AREA. 'AND GAS EQUIPMENT WELLS RANCH + }41.61) OR EQUIPMENT I ANo cns �ry sEE NOTE 6 EEIIGTOWN ISNOTE SEEI NOTE 4)TowN OILAN\ GAB FACILITY paPe \\ \\ r. `— o OIL 0GAB FACILI PERMIT AREA BOUNDARY LINFTYPE LEGEND OE SECNON AREA: 638.25 ACRES SECEION 11 A =NITRES PRAIRIE DOGTOWN (SEE NOTE 0) SECTION 14 RANCH AREA: 636.83 ACRES 70 RANCH LLC — WELL PERMIT NUMBER 319490 OIL EQUIPMENT As ANC;G. STATE OF COLORADO MIT AREA BOUNDARY or or or or w WE. RANCH 'TEL k76N3 WELLS RANCH MLR PERMIT AREA BOUNDARY 0 XCEL ENERGY TRANSMISSION LINES 70 RANCH LLC SECTION 26 JO RANCH LLC ROL CRUDE TERMINALS LLC Y EXISTING BUILDING SECTION DIVIDE EXISTING UNDERGROUND GAS MAJOR CONTOUR MINOR CONTOUR PERMIT AREA BOUNDARY OVERHEAD ELECTRIC EXISTING ROADWAY EXISTING FENCE EASEMENT SECTION QUARTERS OIL AND GA WELL SYMBOL LEGEND1 ABANDONED LOCATION 0 WELL - SHUT IN UGGED AND ABANDONED 0 WELL TEMPORARILY ABANDONED SYMBOL El PRAIRIE TOWNS (SEE NOT") ® WELL • CONSTRUCTED WATER Tac TRC ENVIRONMENTAL CORP. =F,nsa° M, ' BY JUNE 2024 EXHIBIT C-2 COLORADO SAND COMPANY II, LLC KERSEY MINE AFFECTED AREA AND LOCALIZED TOPOGRAPHY BUS Exhibit C Page 4 EXHIBIT C-3 AFFECTED AREA VEGETATION Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 C-3 AFFECTED AREA VEGETATION WELLS RANCH S33 T6N R63W COLORADO STATE OF S04 T5N R63W -.'�n ��,_� ht�w.,�. � COP P,!;.;Y S09 T5N R63W COLORADO STATE OF . S16 T5N R63W PROJECT: ELLS RANCH 34 T6N R63W WELLS RANCH S03 T5N R63W A ELLS 'RA CH LL' S10 WELLS RA R63W WELLS RANC S15 T5N R63W 70 RANCHTLC WELLS RANCH S35 T6N R63W WELLS RANCH S02 T5N R63W WELL , RANCH S11 T R63W WELLS RANCH S14 T5N R63W COLORADO STATE OF S36 T6N R63W WELLS RANCH S01 T5N R63W WELLS RANCH 70 RANCH LLC S13 T5N R63W S23 T5N R63W S24 T5N R63W 70 RANCH LLC r4 RANCH LLC "4 �►- -- _ _ r PERMIT AREA STOCK POND (0.38 ACRES) GRASSLAND (3,933 ACRES) UNVEGETATED (90 ACRES APPROX) BASE MAP: ESRI "WORLD IMAGERY"BASEMAP DATA SOURCES: TRC, PARCELS WELD COUNTY ASSESSOR 0 1,000 2,000 v FEET 1:30,000 1" = 2,500' COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO TITLE: AFFECTED AREA VEGETATION Greeley DRAWN BY: J. STRONA PROJ. NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: A. LAARTZ DATE: JUNE 2024 EXHIBIT C-3 I TR 152SCOL B LEVARD BUILDING 3, AKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO_KERSEY MINE Exhibit C Page 5 EXHIBIT C-4 AFFECTED AREA SOILS Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 PROJECT: S04 T5N R6'iW S03 T5 S09 T5N R63\11 10 T5N R63W S16 T5N R63W S15 T5N R63W S21 T5N R63W I S22 T5" S14 T5N R63W S01 T5N R63W S13 T5N R63W S23 T5N R63 4 T5N a Q PERMIT AREA Q SOIL TYPES 69 - VALENT SAND, 0 TO 3 PERCENT SLOPES 70 - VALENT SAND, 3 TO 9 PERCENT SLOPES 72 - VONA LOAMY SAND, 0 TO 3 PERCENT SLOPES BASE MAP: ESRI "WORLD IMAGERY" BASEMAP DATA SOURCES: TRC, NRCS WEB SOIL SURVEY 0 1,000 2,000 D FEET 1:30,000 1" = 2,500' COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO TITLE: AFFECTED AREA SOILS Greeley ❑ J DRAWN BY: A. CLINE PROJ.NO.: 535891 CHECKED BY: J. STRONA APPROVED BY: A. LAARTZ DATE: JUNE 2024 EXHIBIT C-4 <� Tr2C 526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO_KERSEY MINE Exhibit C Page 6 EXHIBIT C-5 SURFACE AND GROUNDWATER RESOURCES Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 RFACE AND GW RESOURCES 8. .COLORADO SAND CO_KERSEY MINE.APRX; 'Y1535897_KERSEYMI oz zo �z ',L.'o >y 2 ro �J OO °' U S33 T6 R63W S04 T5N R63W , or S09 T5N R63 1 S16 T5N R63W V S34 T6N R63W S03 T5N R63W S02 T5N R63W a S10 T5N R63W S11 T5N R63 S15 T5N R63W S14 T5N R63W STOC POND A � IP - �t � s S36 T6N R63W S01 T5N R63W S12 T5N R63W S13 T5N R63W • 1' Q PERMIT AREA - STOCK POND SITE BUFFER (200FT) CO DWR WELLS 11- WATER WELL - CONSTRUCTED ¢ WATER WELL - UNKNOWN STATUS BASE MAP: ESRI "WORLD IMAGERY" BASEMAP DATA SOURCES: TRC, COLORADO DEPARTMENT OF WATER RESOURCES (DWR) 0 1,000 2,000 FEET 1:30,000 1" = 2,500' PROJECT: COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO TITLE: SURFACE AND GROUNDWATER RESOURCES Greeley JEl DRAWN BY: J. STRONA PROJ.NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: R. JENKINS DATE: JUNE 2024 EXHIBIT C-5 <i Tr2C 526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO_KERSEY MINE Exhibit D Page 1 EXHIBIT D MINING PLAN Per Rule 6.4.4 — The mining plan shall supply the following information correlated with the affected lands, map(s), and timetables. (a) Description of the method(s) of mining to be employed in each stage of the operation as related to any surface disturbance on affected lands. The Kersey Mine will be an open -cut industrial sand mining operation that will employ a continuously advancing pit and concurrent reclamation. With ongoing concurrent reclamation, the continuing advance of the active pit area will progress in a manner similar to that of a surface coal mine, with reclamation consistently occurring, typically immediately following the mining of a given year's mine block. Pre -strip of salvageable growth medium will be carried out in advance of mining, with growth medium replacement on previously mined areas occurring concurrent with mining operations (under steady-state conditions). The initial year of operations will be utilized to establish sufficient pit void to accommodate early -stage development of salvaged growth medium and process waste stockpiles. The initial growth medium stockpile will be located in the year 7 mine block (See TS -0 in Exhibit D-2). Commencing in Year 3, limited concurrent reclamation will begin, with pre -stripped growth medium being backhauled to the prior year's previously mined -out area. Surplus volumes would be placed in the long-term growth medium stockpile (TS -1) and revegetated and stabilized. Commencing with that year and continuing throughout the life -of -mine, steady-state mining conditions will employ concurrent reclamation; and, certain other areas/features will also be reclaimed, such that outstanding reclamation obligations at the end of mine life are minimal (refer to Exhibit E: Reclamation Plan). At the end of mine life, the growth medium material accumulated as inventory in the long-term growth medium stockpile (TS -1) will be largely utilized to accomplish plant area and terminal pit reclamation requirements. See Exhibit D-1: Plan of Operations — Kersey Mine Project, for additional details. (b) Earthmoving; Mining will be accomplished via either a single bench or two -bench open -cut mining method employing hydraulic excavators and/or front-end loader units for excavation. Due to the nature of the material (eolian sand), blasting will be unnecessary, and thus is not a component of the mine plan. The directly excavated material will then be loaded to dedicated off -road, articulated haul trucks that will initially ramp out of the box cut pit to deliver run -of -mine (ROM) material to the ROM stockpile, to be situated proximal to the wet plant portion of the processing plant. Once the pit progression has been established to steady-state conditions, it is anticipated that longer duration central corridor "primary" haul roads (see Exhibit D-2: Mine Plan) will be utilized to deliver ROM material from outlying mining areas to the plant area. Temporary, lateral in -pit haulage segments will be utilized to access the "primary" haul roads. A representative equipment list and the proposed mining method and sequence are further detailed in the accompanying Exhibit D-1: Plan of Operations — Kersey Mine Project. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 2 (c) All water diversions and impoundments; As described in Exhibit G: Water Information, regional drainage is generally to the south-southeast across the Permit Area. Surface topography at the site is gently sloping (southeasterly) at a rate of 40 to 50 ft per mile, with elevations ranging from approximately 4,770 ft amsl near the Permit Area's northwest corner, to about 4,630 amsl near the southeast corner of the Permit Area. Minimal run-on and/or run-off is anticipated at the location due to the generally undulating topography and overall low slope gradients across the Permit Area, in conjunction with the highly permeable soils which comprise the underlying material. Notably, the proposed permit area, virtually in its entirety, is comprised of surficially deposited eolian sands, thus, there is rapid and high infiltration, with limited runoff potential. In general, Colorado Sand Company II, LLC (CSC) has designed the Kersey Mine Project to take advantage of this site -specific characteristic; and, due to the nature of the surrounding area (i.e., the limited area of influence associated with the Permit Area location), no significant run- on or run-off potential is anticipated. CSC will, however, establish "diversion" features in the form of safety berms along pit perimeters which will serve a dual function of minimizing the potential for localized drainage to enter the active pit areas. While the post -mining pit depression(s) will, over the long term, ensure that there will be no offsite excursions sourced from the mined area(s), natural drainage patterns, outside of mining pit areas, will be generally restored at time of closure and site reclamation, as further detailed in Exhibit E: Reclamation Plan. The plant facilities are to be situated in a high-elevational area (nominal elevation of approximately 4,700 ft amsl) in the extreme northeast portion of the Permit Area. All drainage run-off from this area will be directed toward the holding cells and the natural land surface where drainage will be dispersed through natural infiltration into the underlying sand and/or silt materials. It is anticipated that the effects of evapotranspiration will further reduce drainage concerns. Thus, there will be neither drainage -related impoundments nor active "impounding" of drainage flow. Drainage considerations within the confines of the defined mineable blocks (areas) within the overall Permit Area are generally limited to footprint precipitation accumulations, again subject to rapid and high infiltration, given the characteristics of the eolian sand deposit where mining operations will occur. Accordingly, the Kersey Project will function as a "zero- discharge" facility. All operational areas will be incorporated into the facility's Storm Water Management Plan, as a component of the required Colorado Discharge Permit System Storm Water General Permit. (d) The size of area(s) to be worked at any one time; The typical annual mine block is anticipated to range from approximately 70 to 135 acres in areal extent; however, the actual active mining (face) area will typically encompass only a fraction of the annual area. Generally, the active face area will be on the order of 20 to 30 acres in areal extent, sufficient to allow routine operational flexibility in excavating, loading, and hauling activities, while minimizing overall actual disturbance. At any given time, the maximum area of disturbance will include: the active face area (up to the full extent of a typical annual mining block) and the (recent) previously mined out blocks, consisting of (up to) five yearly mine blocks. Typically, the closest trailing mine block will be receiving growth medium, and the remaining four will be substantially reclaimed and in various stages of revegetation monitoring and maintenance. In addition to these mining area(s), the process plant area and ancillary facilities will remain as "disturbed area" until such time final site closure and reclamation are undertaken and completed. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 3 Dimensionally, a nominal overall pit length (i.e., active face) will typically be on the order of 2,500 ft, with the active pit floor area behind the mining face (necessary to accommodate loading and haulage of the ROM material) typically extending to approximately 300 ft in width at full mine -out of a given annual mining block. However, these dimensions will be subject to ongoing variances based on mineable resource thickness, undulating topography, and other influencing factors (e.g., operational constraints, etc.) such as (but not necessarily limited to) the following: • Presence of rights -of -way or easements; • Presence of oil and gas wells or ancillary facilities; and, • Mining Block and/or Permit Area boundaries or other defined mining limits. (e) An approximate timetable to describe the mining operation. The timetable is for the purpose of establishing the relationship between mining and reclamation during the different phases of a mining operation. An Operator/Applicant shall not be required to meet specific dates for initiation, or completion, of mining in a phase as may be identified in the timetable. This does not exempt an Operator/Applicant from complying with the performance standards of Section 3.1. If the operation is intended to be an intermittent operation as defined in Section 34-32.5-103(11)(b), C.R.S., the Applicant should include in this exhibit a statement that conforms to the provisions of Section 34-32.5403(10 (b), C.R.S. Such timetable should include: (i) an estimate of the periods of time which will be required for the various stages or phases of the operation; (ii) a description of the size and location of each area to be worked during each phase; and, (iii) outlining the sequence in which each stage or phase of the operation will be carried out (Note: Timetables need not be separate and distinct from the mining plan, but may be incorporated therein); A detailed operational timeline projection is provided in the accompanying Exhibit D-1: Plan of Operations — Kersey Mine Project More generally, it is anticipated that site development activities will commence within three (3) months following procurement of all necessary permits, approvals, and authorizations. Such activities will include plant area site preparation and initiation of the mine box cut to develop a run -of -mine (ROM, or to -be -processed) material stockpile adjacent to the process plant area, while simultaneously establishing sufficient void space to accommodate the initial Process Discard Stockpile (PDS) and long-term growth medium stockpile (TS -1) features, respectively, thus readying the mining zone for full-scale, steady-state mining operations. CSC envisions a duration of approximately 10 to 12 months for site development, plant construction, initial pit development, and plant commissioning. Once all facilities are in place and fully functional, a rapid ramp -up to the "full-scale" production level is projected to occur, with the Year 1 production level anticipated to achieve a nominal 5 million tons. At a steady-state production level of (a nominal) 5 million tons of run -of -mine (ROM) per year, the life -of -mine (LOM) is currently projected to be twenty (20) years. Additional mineable sand resources are known to be present in areas that remain to be fully delineated through additional exploration; each of these areas have been designated as a Temporary Mining Deferral Zone (TMDZ), with TMDZ-1 encompassing the southeast quadrant of the Permit Area and TMDZ-2 the south -southwestern most portion of the Permit Area, respectively. The overall duration of actual mining (and processing) activity (i.e., life -of -mine) is largely influenced by the total available (economically viable) reserve base; however, it may also be subject to influencing market conditions, unforeseeable mining or processing interruptions, and/or weather -induced delays, etc. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 4 Concurrent reclamation will occur during the mining operation, currently projected to commence in Year 3, such that all mining blocks will have been reclaimed at such time mining operations cease. Each reclaimed mining block will be individually subject to a five-year monitoring and maintenance period to ensure successful revegetation and stabilization. Final site closure and reclamation will commence following completion of all mining and processing operations. Terminal pit reclamation will occur concurrent with plant facilities demolition and pad area recontouring, with the reclaimed plant area receiving a nominal 12 -inch horizon of growth medium (obtained from TS -1, which is largely dedicated to final reclamation activities), as further described in Exhibit E: Reclamation Plan. CSC will similarly carry out post -closure monitoring and maintenance for all otherwise (more recently) reclaimed areas associated with the pit operations (and related haul road infrastructure) for a period of five -years upon completion of all final site reclamation activities. W A map (in Exhibit C: Pre -Mining and Mining Plan Map(s) of Affected Lands, Sub -section 6.4.3) may be used along with a narrative to present the following information: (i) nature, depth, and thickness of the deposit to be mined and the thickness and type of overburden to be removed (may be marked "CONFIDENTIAL "pursuant to Paragraph 1.3(3); and, (ii) nature of the stratum immediately beneath the material to be mined in sedimentary deposits; Due to the nature of the deposit, no "overburden" (in the traditional usage of that term) has been identified as being present; therefore, no "overburden", per se, is anticipated to be encountered or removed. There is, however, a nominal 12 -inch thick surficial "growth medium" horizon that has been confirmed as consistently present throughout the mineable zones within the Permit Area. That nominal 12 -inch depth of growth medium will be pre -stripped in advance of mining, and initially stockpiled in the long-term growth medium stockpile (TS -1) for utilization in final site reclamation activities. Conversely, under steady-state operational conditions pre -strip growth medium volumes will be largely dedicated toward concurrent reclamation; however, minor (surplus) volumes will likely be added to TS -1 and/or intermittently utilized toward feature -specific "advance" reclamation in order to minimize outstanding reclamation obligations at the end of life -of -mine. Beneath the nominal 12 -inch growth medium zone, the immediately underlying sand (typically a +/-30-ft horizon; but, extending to as much as 50 -ft depth in localized areas) is considered mineable material (otherwise referred to as ROM material) that will be subject to processing. As such, it will be excavated and delivered directly to the ROM stockpile (proximal to the processing plant) for wet processing, subsequent drying, and temporary silo storage. Actual mining depth in localized areas will be largely dependent on the presence of intervening clay lenses (if any) and/or other quality characteristics; however, operational/physical conditions encountered with the pit floor may also dictate maximum depth of mining. Exploratory drilling completed to date indicates that the target sand horizon, while variable in thickness, can extend to a depth of as much as 50 ft below existing ground surface. It is CSC's intent to mine a depth horizon sufficient to ensure that the Kersey Mine's economic objectives are attained, which are, in turn, anticipated to be largely dependent on physical mining constraints (sand zone thickness) as well as projected mineral processing recovery factors. While most areas projected for mining will likely be suited to a two -bench configuration (i.e., a 25 to 30 ft depth), localized deeper areas (up to 50 -ft depth) will likely require one or more additional benches to optimally extract the sand resource. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 5 The material to be mined is classified as an eolian (dune) sand deposit of varying depth and character. CSC anticipates that mining depth will be largely influenced by localized variability in thickness and/or sand quality characteristics (i.e., the degree of undesirable silt or clay content) as well as the resultant (projected) process recovery factors. Thus, operational constraints may result in certain localized areas (of the deposit) not being mined to their full extent. Based on available data, anticipated pit -floor conditions can be described as a silty sand, silt, and mudstone matrix, thereafter grading (at greater depth) into shale. It is anticipated that pit floor conditions will readily support mining operations, given the equipment suite selected for mining (i.e., hydraulic excavators, front-end loaders, and articulated haul trucks). Where minor, isolated saturated lenses are or may be encountered within the deposit during active mining, it is anticipated that free drain -down (e.g., infiltration) will naturally occur and/or that conditions can be addressed through temporary routing of such seepage to low-lying areas within the active mining pit depression. In general, it is anticipated that the immediate pit floor sub -horizon (following completion of mining) will accommodate rapid and high infiltration rates within the mined -out pit depression. (g) Identify the primary and secondary commodities to be mined/extracted and describe the intended use. The primary commodity to be mined is an industrial sand product to be utilized within the regional oil and gas industry sector. Secondary commodities which may be produced include clay and/or process "reject" (i.e., off -specification sands) which can be locally utilized for oil and gas pad or access construction and/or construction fill, respectively. While the extent of the commercial scale market (if any) for these secondary commodities is indeterminate at this juncture, CSC retains the right to market and/or sell any or all such materials if economic conditions warrant such. CSC envisions that any such secondary commodity production or sale would be marginal in terms of tons per year (e.g., less than 50,000 tons per year). (h) Name and describe the intended use of all expected incidental products to be mined/extracted by the proposed operation; As discussed in sub -section (g), above, CSC may, from time to time, sell limited quantities of materials derived from the mining and/or processing operations. Thus, CSC shall (as noted above) retain the right to sell a secondary commodity (and/or commodities) such as "clays", "fines", and/or "coarse" or oversized" material (e.g., off - specification material) that are saleable, to the extent market conditions warrant such. With respect to the "off - specification" material, the composition of such material(s) would be virtually identical (other than particle size) to that of the primary commodity, that being a #30/140 industrial sand product. (i) Specify if explosives will be used in conjunction with the mining (or reclamation). In consultation with the Office, the Applicant must demonstrate pursuant to Sub -section 6.5(4): Geotechnical Stability Exhibit, that offsite areas will not be adversely affected by blasting. The Kersey Mine will not utilize explosives. The material to be mined is largely an unconsolidated eolian sand deposit and material extraction will be accomplished via hydraulic excavator(s) and/or front-end loader(s). Other earthmoving equipment to be utilized in the operations may include motor graders, scrapers, and/or similar heavy equipment. Since blasting will not be employed at the Kersey Mine there is no potential for offsite areas to be adversely affected by blasting effects; and, accordingly, the subject Division of Reclamation, Mining, and Safety (DRMS) 112(C) —Construction Materials Permit —is exempt from the requirement to prepare a Geotechnical Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 6 Stability Exhibit pursuant to Sub -section 6.5(4) of the Rules (which specifically addresses potential adverse effects associated with blasting). Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 7 EXHIBIT D-1 PLAN OF OPERATIONS - KERSEY MINE 1. Introduction The Kersey Mine will be an industrial sand mine with an anticipated (producing) life -of -mine of approximately 20 years. This would be preceded by an anticipated 1 -year pre -production period to complete plant and ancillary facilities construction and accommodate initial pit development; and, followed by an anticipated 1 -year closure and reclamation period and a subsequent 5 -year post -closure monitoring period. Thus, the overall (all-inclusive) life-of- mine.is projected to be on the order of twenty-six (26) years. In the event additional mineable resource is validated within Temporary Mining Deferral Zone(s) TMDZ-1 and/or TMDZ-2, respectively, life -of -mine may extend proportionately on the continued basis of producing a projected nominal 5 million tons per year of run -of -mine (ROM) material. In that event, mining and reclamation activities (and closure/reclamation obligations) would remain generally consistent with those of the 20 -year LOM, albeit subject to a proportionate time shift (i.e., an extension of LOM). 2. Oil and Gas Production Infrastructure Considerations Much of the proposed mining area at the Kersey Mine is currently (or previously has been) dedicated to oil and gas production. Accordingly, related oil and gas infrastructure, along with relatively dense well spacing is characteristically present throughout the planned mining zone(s). Avoidance of these features, adherence to appropriate setbacks (i.e., buffers), or physically relocating structures outside of mining limits (such as lowering plugged and abandoned well casings) is an integral component of long- term mine plan development. CSC has had, and continues to have, close interaction with the current owners/operators (Chevron Corporation, Bonanza Creek Energy Operating Company, LLC, and DCP Operating Company LP) of these oil and gas production facilities to ensure that appropriate closure/abandonment plans (and the projected scheduling thereof) for currently operational and/or existing features are fully integrated into the Kersey Mine permitting effort. Negotiations are on -going between CSC and Chevron Corporation for the structures operated and owned by Chevron Corporation within the permit area boundary. CSC has conducted a geotechnical stability analysis in lieu of the required structure agreement with Chevron which demonstrates that the likelihood for adverse effect is minimal, if any (see Exhibit S-4, Stability Analysis Report). The following plan incorporates requisite operational safety considerations: • Pre -mining Reconnaissance — Pre -mining reconnaissance to confirm the presence or non -presence of oil and gas infrastructure will be conducted a minimum of one year prior to development/mining of the projected mine block. The pre -mining reconnaissance will include review of existing survey data, review of the Colorado Energy and Carbon Management Commission (ECMC; formerly the Colorado Oil & Gas Conservation Commission) database information, and field verification to determine the presence of oil and gas infrastructure. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 8 • Owner/Operator Coordination and Consultation — Communication with the oil and gas infrastructure owner(s)/operator(s) will be initiated immediately following the pre -mining reconnaissance. Owner/operator coordination/consultation will be conducted to identify: o Specific safety requirements for working near oil and gas infrastructure; o ECMC well abandonment status and remaining ECMC formal abandonment requirements, such as but not limited to remediation requirements for soil contamination and reclamation status; o ECMC process, safety requirements, and operational plan for lowering wells that have been formally plugged and abandoned and met all ECMC requirements for closure prior to mining; o Set -back requirements for any oil and gas infrastructure that needs to remain in place within the mining block. Currently all oil and gas infrastructure within mining blocks has been or is planned for formal plugging and abandonment; o Schedule for planned activities required for ECMC approved lowering of the well casing and plugging and abandonment completion prior to mining; and o Requirements for CSC coordination/oversight and certification of decommissioning and removal completion (prior to mine advance into the immediate area). • Oil and Gas Planning and Implementation Formal Documentation - Prior to each year's mining advance, CSC will prepare a formal plan (Kersey Mine Oil and Gas Facility Management Plan — Year "TBD", also referred to as "the Annual Oil and Gas Plan") based on the above information and owner/operator pre - mining coordination. Following implementation of the Annual Oil and Gas Plan for the respective mining advance year, CSC will prepare a formal report (Kersey Mine Oil and Gas Facility Management Report — Year "TBD", also referred to as "the Annual Oil and Gas Report") documenting the completion of the requirements detailed in the Annual Oil and Gas Plan. The Annual Oil and Gas Report will incorporate documentation (i.e., discussion/summarization) of the preceding year's completed decommissioning and removal activities, as well as short-term (5 -year horizon) plans pertaining to proposed decommissioning and removal activities within the planned pit progression. Inasmuch as the presence of oil and gas infrastructure within the planned mining areas poses a significant health and safety concern (in addition to operational constraints), CSC may provide the Annual Oil and Gas Plan to the Denver office of the U.S. Department of Labor — Mine Safety and Health Administration for review and comment. It is anticipated that the Annual Oil and Gas Report will be included in the required Annual Reports to DRMS. CSC notes that the (DRMS Annual Report) reporting obligation is solely related to ongoing documentation of mine production and mine safety concerns; all legal obligations relative to reporting on decommissioning activities (to appropriate agencies, etc.) shall remain the responsibility of the oil and gas facilities' owner/operator. 3. Permit Area and General Mine Plan Progression The Kersey Mine is situated roughly 2.5 miles north of US Highway 34, which crosses through the Town of Kersey before continuing to the southeast. The Permit Area's southern boundary is also situated approximately 2 miles north of the Riverside Intake Canal and the South Platte River, which flows east -southeasterly. The Permit Area includes all or portions of seven sections: the S1/4 of Section 34, T06N, R63W of the 6th Principal Meridian and all of Sections 2, 3, 10, 11, 14, and 15, T05N, R63W of the 6`h Principal, comprising approximately 4,018 acres in total, at a location approximately 6.5 miles east-northeast of the Town of Kersey (Weld County). The Permit Area is, in its entirety, comprised of fee -simple (privately -owned) surface estate that is a part of the Wells Ranch and Wells Ranch LLC holdings; CSC controls the surficial sand deposits by virtue of a lease with Wells Ranch and/or its assigns. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 9 All administrative and plant facilities, and related processing activities (to include product load -out) will be located in the central portion of Section 2; T5N, R63W, with plant ingress and egress extending directly from Weld County Road 68 by means of a private (controlled access) paved road extending south from Weld County Road 68 to the Permit Area. The controlled access segment (e.g., the private road) functions as such due to the presence of a 24 - hour per day manned security office located at the intersection of Weld County Road 68 and the site access private road. Following plant facilities development, mining will commence in the northeast portion of the Permit Area (within Section 2) at a box cut location westerly adjacent to the plant facilities (to simultaneously establish a process discard stockpile location and provide the initial material to the ROM (i.e., plant feedstock) stockpile proximal to the wet plant facilities. Mining will then generally advance to the west across Section 3; T5N; R63W (Years 2 through 7), ultimately terminating its westward advance at the east edge of existing natural gas and oil infrastructure located on the western quarter of Section 3; T5N; R63W. Thereafter, mining will transfer over to areas south of the mine plant, more specifically through the south quarter of Section 2; T5N; R63W, continuing a southerly advance into Section 11; T5N; R63W (latter portion of Year 7 through early Year 10) at which point the TMDZ-1 boundary is encountered. Mine planning within TMDZ-1 remains indeterminate at this juncture due to a paucity of drill hole data; however, CSC reserves the right to incorporate some or all of this area into the long-term mine plan. Upon encountering TMDZ-1, the active mine pit will be moved over to the west, with a new box cut opening pit operations in the northeast portion of Section 10; T5N; R63W (latter portion of Year 10), thence advancing westerly through Year 12, followed by movement to the south in Year 13. Years 14 through 20 will exploit the remainder of Section 10, advancing into Section 15; T5N; R63W and continuing to a southern terminus at the approximate mid- point of Section 15 (through the end of Year 20), at which point TMDZ-2 is encountered. As is the case with the above -mentioned TMDZ-1, mine planning within TMDZ-2 (which also extends easterly into the SW1/4 of Section 14; T5N; R63W and abuts TMDZ-1) also remains indeterminate at this juncture due to a paucity of drill hole data; however, CSC reserves the right to incorporate portions thereof, or the full extent of these areas into the long-term mine plan, as well. Each of the TMDZ areas are depicted on Exhibit D-2: Mine Plan. 4. Mining Plan Industrial sand will be mined from an open -cut pit utilizing direct excavation methods (e.g., no blasting will be employed). Mining will generally be conducted via a single or two -bench configuration (dependent on the localized resource depth profile) employing hydraulic excavator and/or front-end loader units for excavation and loading of ROM material to dedicated off -road articulated haul truck(s). 4.1 Mine Operating Schedule The Kersey Mine operations are anticipated to operate on a continuous 24 -hour per day basis, seven days per week. An estimate between 20 and 40 persons are anticipated for each 12 -hour shift, to include about 4 to 8 management and administrative personnel and about 16 to 32 equipment operators/laborers. Operating hour schedules and/or employee counts may be modified if production and/or market conditions warrant doing so. 4.2 Mine Access Route and In -Pit Haul Roads Mine -related traffic will largely arrive and depart the general area via Colorado State Highway 392, which extends northeasterly from the Greeley area to Colorado State Highway 14, near the Town of Briggsdale. The Kersey Mine Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 10 will be accessed by exiting Colorado Highway 392 at a point approximately mid -way along that segment, and more specifically at the Weld County Road 67 exit, then traveling southbound approximately two miles to Weld County Road 68, then eastbound on Weld County Road 68 for a distance of approximately 0.1 mile to the Weld County Road 64 alignment. Mine access requires turning right (southbound) at that location; however this requires entry upon a private access/controlled entry segment of Weld County Road 64. All traffic/vehicles must pass through the guard station at this location, and then continue southbound approximately two miles to the mine entrance proper, which is located at/on the Permit Area's north boundary line (see also Exhibit A-5: Mine Access Route). Upon entering onto the Permit Area, the mine entrance road will extend southeasterly approximately 2,917 -ft., at which point pavement will significantly widen to accommodate plant -related activity/traffic, to include access to the mine offices, employee/visitor parking, and major plant facilities. The southern edge of this expanded area will accommodate the "loadout road", with inbound trucks proceeding easterly through the loadout. A short distance thereafter, loaded trucks will then turn north on the egress route to exit the Permit Area and re -connect with the existing private access road in the S1/4 of Section 35; T06N; R63W in order to return to Weld County Road 64 and Weld County Road 68 and final destination points beyond. Interior to the active mining area(s), CSC will establish a series of three primary haul roads that will remain in place for the full life -of -mine. Initially, an east -west oriented primary haul road (to be designated the "Northwest Haul Road") will serve those mine block areas within Sections 2 and 3, respectively (effectively for Years 1 through early Year 7 mining activity), with its length continuously extending in a manner consistent with the pit advance. When active mining then moves over to the eastern portion of the Permit Area and within Sections 2, 11, and 14 respectively (i.e., latter portion of Year 7 to early Year 10), a second primary haul road will be developed through the central corridor of the mine area, extending north to south through those Sections (to be designated the "East Haul Road"), similarly extending (in overall length) in a manner coincident with the active mine pit progression. A third primary haul road is anticipated to access areas within Sections 10 and 15 (to be designated the "Southwest Haul Road"), respectively (effectively for the latter portion of Year 10 through Year 20), with its length continuously extending southward in a manner consistent with the pit advance. As planned, haul truck(s) will traverse in -pit areas (over varying distances, dependent on active face location) to access the primary haul road(s) and deliver the material to a ROM stockpile area situated proximal to the feed -bin at the wet processing plant. With pit progression typically advancing further away from the plant area, it is envisioned that the primary haul roads will be developed and extended through the defined mine block area(s). In turn, secondary in -pit haul roads will be developed (to accommodate haulage from the active mining face) to establish access to/from the primary haul road(s), as operational needs dictate. Inasmuch as CSC will employ low -tonnage capacity (46 -ton) articulated haul units (equipped with flotation tires), it is anticipated that all haul roads will be situated on and constructed of the natural materials residing within the pit floor. Haul roads will be compacted and maintained, as required, employing initial roller compaction, ongoing blading/grading as warranted, and watered for dust control and compaction enhancement, as necessary. CSC will adhere to operating requirements relative to road maintenance and related activities, as such may be introduced by Weld County or other regulating entity. The in -pit primary haul roads will remain in -place for the duration of life -of -mine in order to provide established access to mined -out areas as they become subject to concurrent reclamation activity (see also Exhibit E: Reclamation Plan). In that regard, CSC anticipates "conversion" of each primary haul road (or segments thereof), when the roadway is no longer needed to support high -usage back -haul associated with concurrent reclamation Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 11 activity. At that point, the respective haul road (or segment thereof) will be converted over to "service road" dedicated to reclamation access only, when the respective road (or segment thereof) will be significantly reduced in overall width (e.g., essentially reduced to a "two -track" configuration). Thereafter, the reclamation "service roads" will be dedicated to the support of reclamation monitoring and maintenance and other light duty access travel. On conclusion of all mining (and reclamation) activities, each of the remaining two -track roadways will be reclaimed via scarification and reseeding over the full extent via a "retreat" mode. Thus, certain portions of the reclamation "service roads" would be fully reclaimed upon conclusion of a five-year post -closure monitoring and maintenance period. 4.3 Mining Equipment Roster The mining equipment roster to be employed at the Kersey Mine is anticipated to include the following representative units: TABLE D-1. LIST OF MINING EQUIPMENT Type Size Qty Application Mining Hydraulic Excavator John Deere 870 (6 Yd3)* 1 Mining/Loading Front -End Loader John Deere 844 (7 Yd3)* 3 Mining/Loading &Plant/Misc. Dozer John Deere 950* 1 Mining/Utility Articulated Haul Truck Truck John Deere 460 ADT (46 ton)* 5 Haul Pit to Plant/Reclamation Water Truck 10,000 gal. Capacity* 1 Dust Control/Road Maintenance Support Equipment Roller Compactor 1 Site Prep/Road Maintenance Utility Pickup Ford F250* 3 Utility/Supervisory/Crew Misc. Plant Area Clean up Track Loader John Deere 323* 2 UTV Kubota 1140* 5 General Site Transportation *Or equivalent. Unit specified is for size and horsepower representation only; actual unit(s) may vary Inasmuch as emergency response services are available locally through the Galeton Fire Protection District (GFPD), no specific ambulatory or other emergency vehicles will be incorporated into the mine equipment suite. In addition to its own emergency response capabilities, GFPD maintains mutual aid agreements with surrounding fire and ambulance services such as those available in the Platte Valley, Eaton, and/or Ault Fire Protection Districts. GFPD is staffed 24/7, with career and volunteer/reserve personnel providing structure and wildland fire response, emergency medical services, basic life support, motor vehicle extrication and water/ice rescue. GFPD also provides hazardous materials operations level first response and its staff are members of the Greeley Regional HazMat Team for more complex incidents. The GFPD also provides an Advanced Life Support Paramedic Transport Ambulance operated by Global Medical Response through a contract with Banner Health. CSC has developed an initial life -of -mine (LOM) plan, to include a "conceptual -level" projected material balance as generally described below (and graphically depicted in Exhibit D-2: Mine Plan). While the following is generally descriptive of the planned mining sequence and progression, CSC shall retain the latitude to modify the described mine plan in the event unforeseen circumstances arise and/or where operational efficiencies can be gained. For Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 12 example, changing market conditions may result in an increase or a decrease from planned production objectives, which in turn may impact the overall acreage mined in a given year (versus planned) as well as the rate and/or direction of pit advance, etc., hence a potentially corresponding effect may occur on subsequent mine blocks/years. To the extent any anticipated or proposed modification(s) are determined to be of a "significant" nature, CSC will accordingly introduce such via Technical Revision (where warranted) to secure DRMS authorization prior to proceeding with the change. However, it should be recognized that "operational flexibility" is one attribute that CSC has purposefully introduced by virtue of the general mine plan and the specific types of equipment proposed for the operation (i.e., excavator and front-end loader with truck haulage). Thus, CSC may, at its discretion, take advantage of that operational flexibility with respect to pit configuration, general direction of advance, change in the locations of active mining face(s), the number of active mining faces, etc. while maintaining general conformance with the overall mine (and reclamation) plan, as described. 4.4 Pre -Production Site Development The first activity associated with mine site development will encompass the pre -stripping of those portions of the Permit Area dedicated to plant facilities and associated infrastructure (to include access and loadout roads, etc.), all of which are located in the central portion of Section 2, in addition to the Year 0 mine block to liberate sand resources for the initial ROM stockpile. This will be followed shortly thereafter by limited "mining" of Year 1 sand resources in order to simultaneously develop sufficient pit void to accommodate initial process discard disposal while establishing the initial ROM stockpile that will be utilized during process plant startup. Pre -stripping of the plant area will encompass the removal of the uppermost (nominal) 12 -inches of "growth medium" for salvage, long-term storage/stabilization, and eventual re -use in site reclamation activities at the conclusion of LOM. This will be accomplished by dozer push and/or front-end loader/excavator loading and truck haul to the growth medium stockpile (TS -1). CSC notes that the "growth medium" material to be stored in the stockpile does not constitute "topsoil" per se, but rather, it is the topmost approximately 12 -inches of material. The results of soils investigation efforts conducted to date indicate the presence of a nominal 8 -inch (+/-) "root zone" within the uppermost 12 -inch horizon. The vegetative community at the site is generally limited to that of various grasses, soapweed yucca, Russian thistle, and sand sagebrush, all of which are typical of the types of vegetation found regionally on similar, heavily- grazed, rangeland. In total, the plant area, which is comprised of the wet and dry plants and ancillary facilities, loadout and service road(s), and the ROM stockpile, will encompass on the order of 107 acres. Pre -strip of this area (to be accomplished prior to site grading and leveling) will require the initial stockpiling of approximately 173,000 cubic yards of growth medium. This material (along with incremental pre -strip volumes) will initially be stockpiled at a designated interim location on the Year 7 mine block (TS -0) proximal to and south of the plant area, to be either utilized in early -stage reclamation (see below) of disturbed areas or, if necessary, relocated to the long- term storage location (TS -1) within the Year 1 pit void. 4.5 Mining Sequence and Annual Production The CSC mine plan has been developed according to prudent mine engineering standards of practice and based on a number of operating design parameters. Many of these parameters have, been developed on the basis of identified site -specific limitations or constraints, including the presence of an extensive array of oil and gas infrastructure as Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 13 well as utility and other "easements" or "rights -of -way" across the entirety of the Permit Area. Design parameters include: • Targeted approximate annual production (sales) of a nominal 5 million tons per year; • Mine to a nominal 30 ft depth below ground surface and may vary with topographic undulations and/or thickness of economically and/or recoverable resource; • Minimal transport distance for process plant discard disposal (via in -pit dry stack); • Diversion of area -wide drainage/run-on away from active mining areas; • Diversion of plant area precipitation run-off to the active pit depression (for infiltration); • Containment of footprint precipitation within active pit depression (for infiltration); • Concurrent reclamation (at steady-state) with no provision for pit backfill (other than growth medium replacement); • Provisions for temporary relocation and reconstruction of existing internal roadways, where necessary; • Pit sidewall slopes at 3H:1 V and 5H:1 V(approximate natural angle of repose); and, • Ranch and/or oilfield service access will be maintained at all times and as per individual agreements with the respective stakeholders • Prescribed minimum 50 -ft setback may be greater and vary as per agreements with the respective stakeholders Mine planning efforts to date have identified the following general pit progression on the basis of a nominal 5 million tons per year ROM production rate. CSC notes that while the general pit progression is provided at a level of detail sufficient to determine anticipated maximum areas of disturbance and associated reclamation obligations, as specifically addressed in Exhibit E: Reclamation Plan, it may, as earlier indicated, be subject to change due to unanticipated factors. Further, it should be noted that all volume and/or tonnage figures presented herein are considered engineering estimates only and are similarly subject to change. • Year 0 — Pre -Production Activity (Central Portion of Section 2) Initial mine development will require the nominal 1 -ft thick growth medium to be pre -stripped from: (1) the plant area (comprising approximately 107 acres, and yielding roughly 172,000 cubic yards); (2) the initial portion of the Process Discard Stockpile (PDS) waste storage area (comprising approximately 10 acres, and yielding roughly 16,000 cubic yards); and, (3) approximately one-half of the full Year 1 mining block (comprising approximately 64 acres, and yielding roughly 103,000 cubic yards), respectively. This approximately 291,000 cubic yards of material will be placed in an interim growth medium stockpile (TS - 0) to be temporarily situated within the west portion of the Year 7 mine block, south of the process plant area. It is anticipated that concurrent reclamation of portions of the PDS and other non -utilized areas of disturbance will subsequently deplete the stockpile prior to the advance of active mining into the Year 7 mining block. CSC estimates that the TS -0 stockpile feature will occupy a footprint area of approximately 12 acres, with a nominal height of 15 ft., as shown on Exhibit D-2: Mine Plan. Concurrent with the final stages of plant construction, a limited tonnage of the sand resource will be recovered from within the initial (easternmost) footprint area of the process discard stockpile (PDS) and the Year 0 mine block, which is to extend westerly from the plant area, situated along (and generally parallel to) the northern boundary of the Permit Area. This recovered sand material will be utilized to establish the initial run -of -mine (ROM) stockpile, to be located just south of the plant area and proximal to Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 14 the wet plant feed bin. It is anticipated that the ROM stockpile will occupy a nominal 8.5 -acre area, sufficient to contain approximately 200,000 tons of live capacity. Following plant shakedown and startup, mining will then commence in the eastern portion of the Year 1 mine block (proximal to the mine plant) in order to excavate sufficient void space to accommodate both the long-term growth medium stockpile and the Process Discard Stockpile (PDS), both of which are to be established on the pit floor of the Year 1 mine block. • Year 1— Initiation of Mining Activity (West Portion of Section 2) In follow-up to the Year 0 startup activities, the subsequent Year 1 pre -strip (of growth medium) is anticipated to generate an additional approximately 108,000 cubic yards of material, all of which is slated to go to the long-term storage stockpile (TS -1). The Year 1 mining activity, in total, is projected to encompass approximately 127.3 acres of mined area, with the mined tonnage (ROM) anticipated to be approximately 5.0 million tons (i.e., an immediate ramp - up to full-scale production levels is planned). An estimated 868,000 cubic yards of process discard material will be placed within the earlier -established Process Discard Stockpile (PDS) area. Continued establishment of a pit void (to accommodate TS -1 and the PDS feature within the pit) is one objective of Year 1 mining. No reclamation activity is planned during Year 1. • Year 2 Mining Activity (Eastern Portion of Section 3) Year 2 pre -strip (of growth medium) is anticipated to generate an estimated 173,000 cubic yards of material, all of which is slated to go to the long-term storage stockpile (TS -1), bringing the total stored volume within TS -1 to approximately 280,000 cubic yards. The Year 2 mining activity will continue with a westerly expansion of the active mining face by continuing a westerly advance into Section 3. The Year 2 mine block encompasses approximately 107.5 acres, with an anticipated ROM production of approximately 5.1 million tons. Approximately 883,000 tons of process discard are anticipated to be produced and placed within the PDS area during Year 2. Continued establishment of sufficient pit void (to accommodate TS -1 and the PDS feature within the pit) remains as an objective of Year 2 mining. No reclamation activity is planned for Year 2. • Year 3 Mining Activity (East-Central Portion of Section 3) Year 3 pre -strip (of growth medium) is anticipated to generate an estimated 149,000 cubic yards of material, of which an estimated 67,000 cubic yards is anticipated to be dedicated to the initial stages of concurrent reclamation, with an estimated 82,000 cubic yards slated to go to the long-term storage stockpile (TS -1). This would result in approximately 42 acres having been reclaimed (largely within the Year 3 mining block), while bringing the total stored volume within TS -1 to approximately 362,000 cubic yards. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 15 The Year 3 mining activity will continue the westerly advance across Section 3, and is anticipated to encompass approximately 93.0 acres, with an anticipated ROM production of approximately 5.1 million tons. Approximately 888,000 cubic yards of process discard are anticipated to be produced and placed within the PDS during Year 3. • Year 4 Mining Activity (Central Portion of Section 3) Year 4 pre -strip (of growth medium) is anticipated to generate an estimated 122,000 cubic yards of material, of which an estimated 88,000 cubic yards is anticipated to be dedicated to ongoing concurrent reclamation, with an estimated 34,000 cubic yards slated to go to the long-term storage stockpile (TS -1). This would result in approximately 54 acres of incremental reclamation (largely within the Year 3 mining block), while bringing the total reclaimed acreage to approximately 96 acres and the cumulative stored volume within TS -1 to approximately 396,000 cubic yards. The Year 4 mining activity will continue the westerly advance across the center of Section 3, and is anticipated to encompass approximately 76.1 acres, with an anticipated ROM production of approximately 5.1 million tons. Approximately 888,000 cubic yards of process discard are anticipated to be produced and placed within the PDS during Year 4. • Year 5 Mining Activity (West -Central Portion of Section 3) Year 5 pre -strip (of growth medium) is anticipated to generate an estimated 114,000 cubic yards of material, of which an estimated 71,000 cubic yards is anticipated to be dedicated to ongoing concurrent reclamation, with an estimated 43,000 cubic yards slated to go to the long-term storage stockpile (TS -1). This would result in approximately 44 acres of incremental reclamation (largely within the Year 4 mining block), while bringing the total reclaimed acreage to approximately 140 acres and the cumulative stored volume within TS -1 to approximately 439,000 cubic yards. The Year 5 mining activity will continue the westerly advance from the center of Section 3, and is anticipated to encompass approximately 71.0 acres, with an anticipated ROM production of approximately 5.1 million tons. Approximately 881,000 cubic yards of process discard are anticipated to be produced and placed within the PDS during Year 5. Limited -scale "advance" reclamation will be carried out on a portion of the PDS, which, at the end of Year 5 is estimated to contain a total volume of approximately 4.4 million cubic yards, encompassing an approximately 50 -acre area at an estimated height of approximately sixty-three (63) ft Thus, as measured from its pit floor foundation, the waste stockpile feature should rise approximately 30 to 33 -ft above the surrounding natural topography. Successive lifts will be established such that a 3H: 1V or 5H:1V side - slope (on active areas), consistent with the material's natural angle of repose, is maintained. Note: At the end of Year 5, CSC has estimated total disturbance to be on the order of 557 acres, of which 182 acres will have been subject to concurrent reclamation (and as such, in the post -reclamation monitoring and maintenance phase), thus leaving approximately 375 acres that would be classified as yet - to -be reclaimed. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 16 • Years 6 - 10 Mining Activity (West Portion Section 3 and Shift Over to Section 11) Year 6 and early Year 7 will complete mining within the north pit, with pit advance to the west being limited by the presence of oil and gas infrastructure. Mining will then shift to the southeast pit, starting in the southern portion of Section 2 in the latter portion of Year 7, advancing in a southerly direction toward TMDZ-1, at which time mining shifts over to the southwest pit, opening that area during the latter portion of Year 10. Year 6: The Year 6 mining activity is anticipated to be carried out along the western extent of Section 3, followed by the start of Year 7, which effectively completes active mining within Section 3, as pit advance approaches (and terminates at) the fenced boundary line delineating the presence of the major oil and gas infrastructure along the western edge of Section 3. Planned production over the projected 79.5 -acre mine block is set at approximately 5.1 million tons for the year. Approximately 67,000 cubic yards of growth medium are slated for use in concurrent reclamation, while approximately 61,000 cubic yards are anticipated to be added to TS -1, bringing the cumulative total of TS -1 stored material to approximately 500,000 cubic yards. Some 886,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 5.3 million cubic yards. Year 7: Only a minor portion of the Year 7 mining activity is anticipated along the extreme western edge of Section 3, and during Year 7 mining activity shifts over to the eastern/southeastern mining area, with a new box cut in the southern quarter of Section 2 (south of the processing plant area). Mining advance continues in a southerly direction toward the Section 2/Section 12 common line. Planned production over the projected 136 -acre is set at approximately 5.1 million tons for the year. Approximately 171,000 cubic yards of growth medium are slated for use in concurrent reclamation, while approximately 46,000 cubic yards are anticipated to be added to TS -1, bringing the cumulative total of TS -1 stored material to approximately 546,000 cubic yards. Some 880,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 6.2 million cubic yards. Year 8: The Year 8 mining activity, carried out in the northern portion of Section 12, encompasses further advance to the south, with a gradual narrowing of the pit due to the presence of major oil and gas infrastructure features located to the west of the pit area. Planned production over the projected 135.1 -acre mine block is set at approximately 5.1 million tons for the year. Approximately 171,000 cubic yards of growth medium are slated for use in concurrent reclamation, while approximately 46,000 cubic yards are anticipated to be added to TS -1, bringing the cumulative total of TS -1 stored material to approximately to its anticipated peak volume of approximately 592,000 cubic yards. Some 884,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 7 million cubic yards. Year 9: The Year 9 mining activity similarly continues the southerly advance through the east -central portion of Section 12, with a continued narrowing (west to east) of the pit. Planned production over the projected 129.2 -acre mine block is set at approximately 5.1 million tons for the year. The full extent (approximately 211,000 cubic yards) of pre -strip growth medium is slated for use in concurrent reclamation, in addition to approximately 4,000 cubic yards to be taken from TS -1, bringing the cumulative total of TS -1 stored material to approximately 588,000 cubic yards. Some 882,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 7.9 million cubic yards. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 17 Year 10: The Year 10 mining activity is largely carried out within the southeastern quadrant of Section 12, with pit advance being curtailed (late in the year) near the extreme southern boundary of the section due to a current lack of geological data. Unmined areas further to the south, and extending through Section 14, encompass what CSC has termed "TMDZ-1", or Temporary Mining Deferral Zone 1 (refer to Exhibit D- 2: Mine Plan). CSC retains the right to incorporate all or part of TMDZ-1 into the LOM plan once additional geological data is available. It is anticipated that the latter portion of the Year 10's production will be derived from a new box cut as pit operations are shifted to the southwest mining area, with the box cut entering the area at a location near the northeast corner of Section 10. Planned production over the projected 126 -acre mine block is set at approximately 5.1 million tons for the year. The full extent (approximately 203,000 cubic yards) of pre -strip growth medium is slated for use in concurrent reclamation, in addition to approximately 5,000 cubic yards to be taken from TS -1, further reducing the cumulative total of TS -1 stored material to approximately 583,000 cubic yards. Some 880,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 8.8 million cubic yards. Note: At the end of Year 10, CSC has estimated total disturbance to be on the order of 988 acres, of which 651 acres will have been subject to concurrent reclamation (and as such, the 651 acres would be in the post -reclamation monitoring and maintenance phase), thus leaving approximately 336 acres that would be classified as yet -to -be reclaimed. In addition, it is projected that some 182 acres of previously reclaimed disturbance will have successfully completed the 5 -year duration post -reclamation monitoring and maintenance period and would potentially be subject to partial bond release. • Years 11-20 (Southward Progression Through Section 10 and North Portion of Section 15) As indicated above, it is projected that the latter portion of Year 10 will be dedicated toward opening a new box cut in the northeast corner of Section 10, thus facilitating transfer of mining operations over to the southwest portion of the Permit Area, with a planned continuation of mining within that portion through the remaining 10 years of mine life. It is anticipated that such will be accomplished in general accordance with the following described progression. Year 11: The Year 11 mining activity encompasses a continued southerly advance from the Year 10 mine block, followed by a reconfiguration of the pit to facilitate a westerly advance across the central portion of the northern one -quarter of Section 10. Planned production over the projected 86.2 -acre mine block is set at approximately 5.1 million tons for the year. The full extent (approximately 177,000 cubic yards) of pre - strip growth medium is slated for use in concurrent reclamation, in addition to approximately 39,000 cubic yards to be taken from TS -1, further reducing the cumulative total of TS -1 stored material to approximately 544,000 cubic yards. Some 880,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 9.7 million cubic yards. It is anticipated that the Kersey Mine's maximum area of disturbance will occur during Year 11, at which time a total of 988 acres of disturbance remaining in a "non -reclaimed" status. Year 12: The Year 12 mining activity is anticipated to continue the westerly advance to near the western edge of the Permit Area, then turning south and developing a full pit length face across the mining area, while mining out the northernmost one-third of Section 10 in doing so. Planned production over the projected 76.8 -acre mine block is set at approximately 5.1 million tons for the year. The full extent Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 18 (approximately 175,000 cubic yards) of pre -strip growth medium is slated for use in concurrent reclamation, in addition to approximately 52,000 cubic yards to be taken from TS -1, further reducing the cumulative total of TS -1 stored material to approximately 492,000 cubic yards. Some 885,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 10.6 million cubic yards. Year 13: The Year 13 mining activity is planned to encompass advancing the full pit -length face to the south, effectively completing mining of the north one-half of Section 10. Planned production over the projected 76.1 -acre mine block is set at approximately 5.0 million tons for the year. The full extent (approximately 124,000 cubic yards) of pre -strip growth medium is slated for use in concurrent reclamation, in addition to approximately 1,000 cubic yards to be taken from TS -1, further reducing the cumulative total of TS -1 stored material to approximately 491,000 cubic yards. Some 872,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 11.4 million cubic yards. Year 14: Mining continues the full pit -length face advance to the south, remaining within the central portion of Section 10. Planned production over the projected 88.9 -acre mine block is set at approximately 5.0 million tons for the year. The full extent (approximately 123,000 cubic yards) of pre -strip growth medium is slated for use in concurrent reclamation, while a surplus of about 19,000 cubic yards is to be routed to TS -1, bringing the cumulative total of TS -1 stored material back up to approximately 509,000 cubic yards. Some 873,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 12.3 million cubic yards. Year 15: Mining activity in Year 15 advances the full-length pit further south within the central portion of Section 10. Planned production over the projected 93.4 -acre mine block is set at approximately 5.0 million tons for the year. The full extent (approximately 139,000 cubic yards) of pre -strip growth medium is slated for use in concurrent reclamation, while a surplus of about 12,000 cubic yards is to be routed to TS - 1, bringing the cumulative total of TS -1 stored material back up to approximately 521,000 cubic yards. Some 872,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 13.2 million cubic yards. Year 16: The Year 16 mining activity continues to advance a full-length pit southward in the central portion of Section 10; however, pit length begins to shorten near the end of the year due to a narrowing of the pit to accommodate oil and gas infrastructure present interior to the western edge of the Permit Area. Planned production over the projected 92 -acre mine block is set at approximately 5.0 million tons for the year. The full extent (approximately 148,000 cubic yards) of pre -strip growth medium is slated for use in concurrent reclamation, in addition to approximately 600 cubic yards is to be taken from TS -1, bringing the cumulative total of TS -1 stored material down to approximately 520,000 cubic yards. Some 878,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 14.1 million cubic yards. Year 17: Mining in Year 17 continues the southward progression, entering the northernmost portion of Section 15; however, full pit length is generally re-established/maintained as the east end of the pit then extends easterly (entering the NWl/4 of Section 14) to accommodate the aforementioned oil and gas infrastructure. Planned production over the projected 88.5 -acre mine block is set at approximately 5.0 million tons for the year. The full extent (approximately 145,000 cubic yards) of pre -strip growth medium Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 19 is slated for use in concurrent reclamation, in addition to approximately 4,000 cubic yards to be taken from TS -1, thus reducing the cumulative total of TS -1 stored material to approximately 516,000 cubic yards. Some 862,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 14.9 million cubic yards. Year 18: Consistent with the depicted Year 17 easterly shift (i.e., full-length panel), Year 18 continues the southward progression through the northern portion of Section 15. Planned production over the projected 79.9 -acre mine block is set at approximately 5.1 million tons for the year. The full extent (approximately 140,000 cubic yards) of pre -strip growth medium is slated for use in concurrent reclamation, in addition to approximately 15,000 cubic yards to be taken from TS -1, thus reducing the cumulative total of TS -1 stored material to approximately 501,000 cubic yards. Some 883,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 15.8 million cubic yards. Year 19: In a similar manner, Year 19 mining activity continues the southward progression, advancing into the central portion of Section 15. Planned production over the projected 67.5 -acre mine block is set at approximately 5.0 million tons for the year. The full extent (approximately 125,000 cubic yards) of pre - strip growth medium is slated for use in concurrent reclamation, in addition to approximately 17,000 cubic yards to be taken from TS -1, thus reducing the cumulative total of TS -1 stored material to approximately 485,000 cubic yards. Some 868,000 cubic yards of process discard are projected to be placed in the PDS, bringing the total volume in the PDS to approximately 16.7 million cubic yards. Year 20: The final LOM year depicted on Exhibit D-2: Mine Plan is Year 20, during which the continued southward progression completes the mining of the northern one-half of Section 15. CSC notes that additional mineable resources remain within TMDZ-2 (to the immediate south of the Year 20 progression termination line) and TMDZ-1 (largely within Section 14 and over to the east of TMDZ-2), respectively. Planned production over the projected 68.7 -acre Year 20 mine block is set at approximately 5.0 million tons for the year. Nearly all (approximately 107,000 cubic yards) of pre -strip growth medium is slated for use in concurrent reclamation, with a small surplus volume of approximately 3,000 cubic yards being routed to TS -1, the result being a final cumulative total of TS -1 stored material of approximately 488,000 cubic yards. Some 873,000 cubic yards of process discard are projected to be placed in the PDS, bringing the final total volume in the PDS to approximately 17.6 million cubic yards. At the end of Year 20 (i.e., full build -out), the PDS feature is anticipated to occupy an approximately 173 - acre footprint area, with an anticipated height of 100- to 120 ft as measured from the pit floor. The top of the feature is estimated to encompass approximately 73 -acres in surface area. The TS -1 feature is anticipated to occupy an approximately 60 -acre footprint area, with an anticipated 85 - ft height at full build -out; however, this feature will be removed (in its entirety) as it will be utilized in final site reclamation activities. • Post Year 20 (Potential Extension of Mine Life Within TMDZ-1 and/or TMDZ-2) Post Year 20 (Temporary Mining Deferral Areas): As indicated earlier, CSC has identified and set aside two discrete "Temporary Mining Deferral Zones" (TMDZ-1 and TMDZ-2, respectively), within which there remain deficiencies in the geologic database as to definitive mineable resource characteristics Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 20 (thickness, areal extent, and quality, etc.) and/or insufficient information as to operating oil and gas facility infrastructure abandonment timing. Resources within these areas have been preliminarily estimated in the following manner. Temporary Mining Deferral Zones: As currently defined, the two "Temporary Mining Deferral Zones" (TMDZ-1 and TMDZ-2) occupy portions of Section 14 and Section 15, respectively. TMDZ-1 occupies a portion of the southern one-half of Section 12, as well as approximately three-quarters of Section 14. TMDZ-2 occupies a large portion of Section 15, and extends easterly into Section 14. As earlier indicated, these TMDZs have been largely "set aside" due to a lack of sufficient exploration data (i.e., number and density of boreholes) to support meaningful analysis of the resource base and a determination of its general mineability (i.e., presence and unknown duration of ongoing oil and gas infrastructure, etc.). However, based on extrapolation and/or the limited data available to date, CSC anticipates that the gross resource base in these TMDZ areas may collectively comprise some 50 million tons of mineable material, potentially representative of an incremental twelve (12) to thirteen (13) year extension to the currently defined twenty (20) year life -of -mine (plan). 4.6 Completion of Mining - Final Site Closure and Reclamation (Terminal Pit and Plant Area) Although more specifically addressed in greater detail within Exhibit E: Reclamation Plan, final site closure and reclamation can be summarized as including the following: • Growth medium salvage during the early life of mine will incorporate long-term stockpiling of surplus growth medium material sufficient to ensure that the terminal pit area will receive the nominal 8- to 12 - inch growth medium cover consistent with all other mined out areas; • The terminal pit area will be reclaimed in a manner consistent with all other mined out areas; • Remaining primary haul roads will be scarified (on retreat) over their full extent from prior mining areas back to the plant area, although lesser width two -track access roads may be established/maintained at locations to be determined, in order to provide ongoing access to reclaimed areas for purposes of site monitoring and maintenance, to be carried out over a five-year post -closure monitoring and maintenance period.; and, • Plant area structures, ancillary features, and paved surface areas will be demolished and/or removed from the site, and the plant area in its entirety will be reclaimed in a manner consistent with that presented in Exhibit E: Reclamation Plan, utilizing the growth medium material previously accumulated in the TS -1 stockpile during early -on site development activities. 5. Processing Plant Operations The Kersey Mine will employ wet and dry processing stages to produce a singular saleable product comprised of#30/#140 industrial sand. All mined materials will be processed onsite, employing both wet (wash) and dry (thermal drying followed by screening) process unit operations typical of those utilized in the sand and gravel industry. A preliminary/conceptual plan -view layout of the major components of the Kersey Mine's plant facilities is provided as Exhibit D-3: Mine Process Plant & Facilities Layout, with major components of the plant facilities being Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 21 described, in a process flow sequence, as follows. The process flow sheet is also described following, and graphically depicted in Exhibit D-4: Process Flow Diagram. 5.1 Overview - General Process Flow All mined materials will be processed onsite, employing both wet (wash) and dry (thermal drying followed by screening) process unit operations typical of those utilized in the sand and gravel industry. CSC notes that no hazardous or toxic process "reagents" will be introduced during the wet (or any other component) of the process; however, minor quantities of polymers (such as, for example, Clearwater Industries, Inc. "CW3M") will be utilized to facilitate the fines settling process. Such polymers are widely and routinely utilized in industrial sand mining and processing facilities throughout the U.S. and internationally. These products have been demonstrated to be non-toxic, with short duration degradation characteristics, as discussed in the "Barr White Paper Environmental Impacts of Water Treatment Chemicals at Industrial Sand Mines" (Barr Engineering Company 2013). Both the "white paper" and the Material Safety Data Sheet for the CW3M polymer product are provided in Exhibit D-5: Use of Polymers. The "wet plant" will utilize a wet rinse scalper to initially remove oversize material (i.e., greater than '/2" material), which will report to an oversize reject stockpile. A secondary screening process will further reduce the top size of product to #30 mesh (0.0236 inch), with the 1/2 "x #30 fraction also reporting to the oversize stockpile. As space availability may dictate, the minor quantities of oversize material will be subsequently utilized in miscellaneous site grading and/or as pit backfill. Feedstock material will be recovered from the ROM stockpile via front-end loader, and introduced to the "wet plant", which will utilize mechanical separation processes (freshwater wash) to produce a #30/#140 (i.e., a less than 30 mesh but greater than 140 mesh interim product). Oversize material (i.e., that greater than 30 mesh) will be scalped off prior to the wash process and routed to the reject stockpile. Undersize material (that less than 140 mesh but greater than 325 mesh) will be separated with cyclones, dewatered to less than 20% moisture and conveyed to the reject stockpile. Ultra -fines (#140/325) will be generated during the wash process (which will employ cyclones and attrition cells) and contained in plant effluent. Plant effluent will be processed in a rack clarifier, with clean water recycled back to the wet plant supply tank. Thickened sludge will report to belt presses where further dewatering will occur, and the resultant filter cake will be conveyed to and stockpiled at the plant. The retained material (i.e., that less than #30) would then be pumped to a series of attrition cells to break down clusters and separate any undesirable "clayey" materials from the desired silica product. The slurried material will then be pumped to a series of cyclone separators, from which overflow will report to the water clarifier. Cyclone underflow will produce a #30 x #140 product, which will be screen-dewatered and conveyed to the Wet Sand Storage Building (as an interim product) for decanting and subsequently, removal for further (downstream) Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 22 processing. The cyclone overflow, a #140 x #325 waste fines slurry, considered a process reject material, will be dewatered and conveyed to the process discard stockpile (PDS). [Note: During upset conditions, sludge will be pumped from the clarifier to a holding cell (HC -1) to be located proximal to and southeast of the process plant facilities. Once HC -1 is at full capacity, a second cell (HC -2) will be established adjacent to HC -1, and all conveyance piping re -allocated to the second cell. HC -1 will be allowed to naturally dewater through the combined effects of evaporation and infiltration, and once deemed effectively "dry", will be cleaned out utilizing excavators and trucks. The excavated material will then be hauled to either the process discard stockpile (PDS) or a proximal pit floor location, if available. Once HC -1 has been cleaned out, it will be available for use in subsequent upset conditions. HC -2 will follow the same procedures for clean out and re -use.] The clarifier unit will receive all plant effluent; solids will be settled out (polymers may be employed to facilitate the settling process), and the resultant clarified water re -introduced (recycled) to the wash process. Belt filter presses will be utilized to reduce the water content of the clarifier underflow, with the liquid effluent reporting back to the clarifier. The resultant filter cake will be temporarily stockpiled (by radial stacker) and routinely removed, as space constraints may dictate, to the reject or process discard stockpile (PDS). The wet sand (i.e., the intermediate silica product), will be conveyed to the Wet Sand Storage Building where it will be stockpiled by tripper conveyor and allowed to passively decant (through drain -down processes), thus reducing the residual water content. Drain -down fluids will be collected via an underdrain system and returned to the water clarifier unit. The post drain -down intermediate product will then be routed to a drying plant, where it will be passed through gas - fired rotary dryer unit(s), after which all material will report to a 1/16" scalping screen to remove any foreign material from the product that may have been introduced during the transfer and/or drying processes. The reject material (minor quantities) will be collected from under individual scalping screens and moved to pit as part of back fill process. Each gas fired rotary dryer will be equipped with a cyclone and bag house to remove fines material (particulate) from the air flow stream; this fines "reject" will be conveyed to a small "reject" stockpile, where it will remain until space constraints dictate removal to the process discard stockpile (PDS). The desired less than #30 but greater than #140 mesh interim product (hereafter referred to as "#30/140") end (saleable) product emanating from the gas -fired rotary dryer and scalping screen circuit will be conveyed to the Dry Sand Storage Building, where tripper conveyors will again be utilized to stockpile the product. Final product from the Dry Sand Storage Building will be removed by reclaim gates and conveyed to the product load -out silos. Product load -out silos will be positioned above scales and will function as "surge bins" to facilitate truck loading (to third -party over -the -road tractor -trailer units), utilizing a telescoping spout with integrated dust control. 5.2 Plant Operating Schedule The Kersey Mine plant and loadout operations are anticipated to operate on a 24 -hour basis, seven days per week. Two 12 -hour shifts per day are planned, and an estimated twenty to forty (20 - 40) persons are anticipated for each shift (for a total of 144). The breakdown of the onsite personmel is anticipated to be two shift rosters of four to eight (4 - 8) management personnel each shift, and two shift rosters of sixteen to thirty-two (16 -32) laborers each shift. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 23 Operating hour schedules and employee counts may be modified to the extent production and/or market conditions warrant such. 5.3 Plant Facilities • Plant Loadout and Service Roads Plant access will be established via a roller -compacted -concrete or asphalt -surfaced entrance road (nominal 20 -ft width) exiting southerly from the facility's private access road that extends southerly from Weld County Road 68 (refer also to Exhibit A: Legal Description and the therein provided Exhibit A-5: Mine Access Route). Onsite traffic flow will be unidirectional, (i.e., "one-way"), eastbound through the entrance, thence eastbound to the exit. At a distance approximately 500 ft interior to the Permit Area, the site entrance road will divide, retaining the unidirectional traffic pattern (generally eastbound) for both portions of the roadway, with the plant loadout road continuing in the easterly direction (along the south edge, while widening to a nominal 185 -ft width) as it approaches the assemblage of eight (8) product storage silos (for loading/scaling). The more northerly situated plant service road will continue east along the north edge of the primary plant facility installation. Some 750 ft (m/1) east of the loadout installation, the two roads reconverge, forming a two- lane (30 ft width) roadway that extends to the north, reconnecting with the facility's private access road, thence returning to Weld County Road 64, ultimately exiting the site via Weld County Road 68 through the (controlled -access) guard installation. That primary site access point (i.e., the intersection where the private roadway intersects with and/or connects to Weld County Road 68), will be subject to Weld County design standards. Other dedicated internal travel -ways will be established within and throughout the plant area to facilitate routine operations; however, it is not envisioned that these features will be formal or "improved" roadways, but rather, bladed and compacted travel surfaces, to be installed where operational demands require such. While the specific locations and/or the extent of such internal "routes" remain indeterminate at this juncture, these routes will be utilized for increased efficiency in heavy equipment movement, maintenance activities, supplies delivery, routine supervisory pickup truck travel, and mined/processed material movement throughout the plant area. • ROM Stockpile The ROM stockpile, with a design -based "live" capacity of approximately 475,000 tons, will be situated proximal to the wet plant feed hopper, occupying an area approximately 933 ft x 437 ft x 20 ft high. Plant processing activities will commence with front-end loader retrieval of the ROM material (i.e., feedstock) from the stockpile, followed by transport and delivery to the wet plant feed hopper. • Wet Process Plant The wet process plant facilities will occupy an approximately 2,000 -ft by 900 -ft "footprint" area at a location immediately to the north of the ROM stockpile. The enclosure will contain an assemblage of equipment, the majority of which is to be affixed to concrete foundations. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 24 ROM material will be trammed (via front-end loader) from the ROM stockpile to the integral feed hopper. Material will then be conveyed to wet scalping screens where material larger than (oversize) will be removed and conveyed to an oversize stockpile. Material smaller than (i.e., passing the '/z" screen) will be placed into a slurry and pumped across additional screens. Material larger than 30 mesh (#30) will be removed by secondary screens and dewatered (to approximately 15% moisture content) and conveyed to the PDS. Material smaller than #30 will be further pumped through attrition cells and cyclones to produce a #30/140). This product will be dewatered and conveyed to the washed sand stockpile within the Wet Sand Storage Building. • Washed Sand Stockpile and Decant System Washed (interim) product from the wet plant will be delivered to Wet Sand Storage Building (an approximately 610 ft x 130 ft enclosed structure) via conveyors, and stockpiled inside the structure via overhead tripper conveyors. The Wet Sand Storage Building will have an anticipated maximum stockpile height of approximately 48 -ft., occupying a footprint area of approximately 568 ft x 120 ft., sufficient to accommodate an estimated 70,000 cubic yards of (interim) product for a limited -duration time period, during which residual moisture will be decanted from the material. The decant system will employ a perforated pipe underdrain system designed to drain to a common sump, from which recovered water will be pumped to the Wet Plant clarifier unit for clarification and subsequent re -use. • Drying and Screening Plant The drying and screening plant facilities will occupy an approximately 280 ft by 350 ft area within the central portion of the Plant Area. It will consist of an assemblage of permanently installed equipment, to include a rotary drying unit and various screening decks, all of which will be placed atop a concrete foundation. As depicted in Exhibit D-4: Process Flow Diagram, the post drain -down intermediate product will be routed to a drying plant, where it will be passed through gas -fired rotary dryer unit(s), after which all material will report to a 1/16" scalping screen to remove any foreign material from the product that may have been introduced during the transfer and/or drying processes. The reject will be collected (minor quantities) under individual scalping screens, until moved to either the PDS or a pit void area for disposition. Each gas fired rotary dryer will be equipped with a cyclone and bag house to remove fines material (particulate) from the air flow stream; this fines "reject" will be conveyed to a small "reject" stockpile, where it will remain until space constraints dictate removal to the process discard stockpile (PDS). The desired #30/140 end (saleable) product emanating from the gas -fired rotary dryer and scalping screen circuit will be conveyed to the Dry Sand Storage Building where tripper conveyors will again be utilized to stockpile the product. • Oversize (Reject) Stockpile The Dry Plant oversize stockpile will be situated proximal to the screening tower, which is to be located at the west end of the Dry Plant facilities. Oversize material (i.e., that greater than 1/16") from the final screening process will be stockpiled via a radial stacking conveyor unit. It is anticipated that the oversize stockpile will, at maximum capacity, encompass an approximately 55 -ft diameter footprint. It is Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 25 anticipated that oversize material will generally be utilized in miscellaneous site grading and/or backfill activities. • Product Storage Silos and Loadout Facilities Eight separate product storage silos will be situated along the loadout road at a location north of the Plant Area. The product storage silos will directly fill third -party over -the -road tractor -trailer units via telescopic spout(s) equipped with integrated dust collection capability. CSC estimates that, at full-scale operations, an average of approximately 11,000 tons per day of saleable product will be loaded, resulting in an estimated total of 440 round-trip truck -trips per day. In addition to this, maintenance and service vehicles and material/supply delivery vehicles are anticipated to add another 10 to 20 round-trip truck -trips per day, on average. Each loaded/scaled truck will be provided with a load ticket, and once loading is completed, the trucks will continue east and turn north at the end of the loadout road in order to re -access the private site access road, eventually returning to the site access point (guard installation) and Weld County Road 68. Trucks would subsequently access Colorado State Highway 392, with ultimate delivery of the industrial sand products being to customers located within the regionally proximal area. • Ancillary Facilities Certain ancillary facilities will be established to support the mining and processing operations, to include the following: o Plant Offices - the main plant office will consist of one 75 -ft by 30 -ft portable containerized unit aligned alongside the west side of the dry sand storage area. This unit will be utilized as the primary administrative office. One additional unit, also consisting of one 75 -ft by 30 -ft portable containerized unit, will also be located in this area, which will serve as an employee breakroom. o Parking - Vendor and visitor parking will be established proximal to and generally south of the main plant office(s), as will employee parking. o Water Supply and Storage - Onsite water storage will be provided mainly through a bulk water storage tank (21,000 gallons capacity) located proximal to the wet plant facilities. In addition, in - process vessels, to include the clarifier unit (45,000 gallons capacity) and the 'blear well' (13,000 gallons of clarified water) will further augment the water supply (in- circuit). With respect to raw water supply requirements, CSC has estimated the total (in -circuit) water requirements for the Kersey Mine operations to be on the order of 9,000,000 gallons. Make-up water requirements for mining and processing activities are anticipated to be approximately 800,000 gallons per day, inclusive of all requirements for process water make-up that would be attributed to evaporative loss, dust control applications, entrainment in fines, etc. Fugitive dust suppression activities (i.e., the use of water trucks for haul road and related dust suppression requirements) are anticipated to consume, on average, an estimated 32,000 gallons per day. Dust suppression water will be applied to roads internal to the Permit Area on an as -needed basis, with water being sourced directly from the main bulk storage tank. No specific provision has been made for personnel hygiene uses (such as showers, etc.) as such activities are to be carried out offsite. Onsite sanitation facilities will initially be provided by portable toilet units Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 26 (during facilities construction; to be serviced on a regular basis by a third -party contractor) to be later replaced by an onsite septic system once operational. Potable water will be delivered to the site on a regular basis, also via third -party contractor. • Raw Water Supply Water Supply will be sourced from one primary source of water, the New Cache la Poudre Ditch System, located to the northwest of the mining area. Other known potential sources exist in the Site vicinity and can provide 100% of the necessary water supply. CSC may seek additional sources beyond the New Cache la Poudre Ditch System if warranted. Additional water supply details are provided in Exhibit G. • Natural Gas Supply Natural gas will be provided to the site under a third -party supplier contract with Colorado Interstate Gas. Primary natural gas consumption will be that related to the firing of the four dryer units. • Electrical Service Electrical service will be provided under a third -party supplier contract through either Xcel Energy. Another known potential source that could provide electricity, if warranted, is United Power. CSC is currently evaluating these options. • Diesel Fuel Storage Diesel fuel storage will be accommodated via a single 12,000 -gallon capacity storage tank to be located in the southeast corner of the office/maintenance shop area. The horizontal, ground -based tank will be a double -walled, fire -protected tank of cylindrical design (approximately 198 -in. length x 96 -in. diameter). Protective barriers (i.e., bollards and/or concrete barriers) will be installed on all four sides of the installation. Diesel fuel will be delivered to the site via a third -party contractor. All aspects of fuel storage and delivery will be carried out in a manner consistent with a facility -specific Spill Prevention, Control, and Countermeasures Plan. 6. Glossary Annual Oil and Gas Plan Kersey Mine Oil and Gas Facility Management Plan — Year "TBD" Annual Oil and Gas Report Kersey Mine Oil and Gas Facility Management Report — Year "TBD" CSC Colorado Sand Company II, LLC DRMS Division of Reclamation, Mining, and Safety ECMC Colorado Energy and Carbon Management Commission GFPD Galeton Fire Protection District HC Holding Cell LOM Life -of -mine ROM Run -of -mine Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit D Page 27 EXHIBIT D-2 MINE PLAN Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 C\PW WORKING-TRD\00753924\D-1 MINE PLAN.DWG-6/6/24 • • • \\ I # SECTION 33, PERN,AREA BOUNDARY WELLS RANCH —= PIT LIMT- -- ,VRMI AREA BOUNDARY • STATE OF COLORADO f� f% • • • PIT UNLIT L W RANCH COMPANY • • 00 PERMIT AREA BOUNDAR • STATE Or COLORADO • • 20 RANCH,. PIT LIMIT MINNS SEQUENCE: PLANT IMPORT (YEAR V YEAR 1 V/A LINETYPE LEGEND: SYMBOL LEGEND: SECEION 34 TEN R63W 22, WELLS RANCH {NOT INCLUDEDINPERMIT AREA) PRAIRIE DOG TOWN (SEE NOTE 2( sic•FsEcnox 34 TRH ROW WELLS RANCH WELLS RANO., ARFA:II ACRES PROCESS STOCKPILEDICARD (POE)60 ACRES YEAR 3 ,AREA 93. ACRES EA: 76 ACRES PIT LLMIT W LL PEWIT M 2,19 o SEE NOD, UPUP g> f TSVI TRW, 70 RANCH LLC NENTRANCE E(NOTE 3( PERMIT AREA BOUNDARY a≥4,.. i• LI SEEN: 31 nACRE EAR 0 AREA ACR 13620 1 • SEE NOTE D. 0'1' ■ ISTATE Of COLORADO 4 • PERMIT AREA BOUNDARY — M�TGAITE • n0fPROCES'S PLANT A f (SEE FIGURES y RE rt OWING CEL LS H WING rIvCELLS D69Pd LOS GCSES OM(PROCESS DSTOCKMCVPIL EAST HAUL ROAD •� Y12BAcaEEs PsEE N0DOG To TOCK WELL PERMIT \\ UMBER 319430 \\ • SECTION 1 WELLS RANCH • u • PERMIT AREA BOUNDARY • SECTION 12 i i C PERMIT AREA BOUNDARY • JO RANCH LLC Wrr:63 \ 7SECTION VI =glI LLC 20 LLE • 6 • 0 ND Gus WELL SYMBOL LEGEND: ELL -ABANDONED LOCATION WELL -SHUT IN WELL PLUGGED AND ABANDONED WELL - PRODUCING WELL -TEMPORARILY ABANDONED I R FACILITIES MAY OPERATE OPERATIONS, ANDREPA DD WO HOURS PER DAY, WITHOUT PER BOARD 0 NOUNp THE FACILITY MAY OPERATE SEV S PER WEEK, YEA -ROUND 2. BURROWING OWL HABITAT • NO INITIAL DISTURBANCE TO PRAIRIE DOG TOWNS PROM MARCH 15 - OROBER 31 3. LS RANCH GUARD SHACK AND SECURIN GATES AT MINE NCiEXITV0. EXISTING WEL TO BE PLUGGED AND ABA CONED FOR MINE SEQUENCE AREA YEAR 2 YEAR 3 I Y//////A YEAR S I%////lA YEARS r/ YEAR, Y//////A YEAR P RID I / ,I TEMPORARY MINING DEFERRAL ZONE-TMD2-2 N � YEAR 11 r/// /4,1 UNDISTURBED AREA f //// .I 'EAR" //// /A YEAR 13 k" / /A YEAR 1A/// YR 15 YEAR 16 l %i/�/.1 YEA /l// A 'AR" TEMPORARY MINING DEFERRAL ZONE-TMD2-I h\\ .\\\ .J OE PROPOSED EDGE OF ROAD PROPOSED EQUIPMENT MAJOR PROPOSED CONTOUR MINOR PROPOSED CONTOUR EXISTING OVERHEAD ELECTRIC BUILDING SKSION DIVIDE SECTION QUARTERS - EXISTING FENCE EXISTING ROADWAY 13eo seo o 8813 Eszo s 8130• GENERAL DIRECILON CIF ADVANCE REINFORCED GEMENT CONCRETE - PROPOSED GATE PROPOSED GRAVEL HAUL ROAD e WELL • CONSTRUCTED WATER 1� JUNE 2024 EXf- D-22 COLORADO SAND COMPANY II, LLC KERSEY MINE MINE PLAN �i TIC TRC ENVIRONMENTAL CORP. DESIGN IDS NO DRAWN GS [NECKED DI DEPPIEWSIO 100 EILINIDES. Exhibit D Page 28 EXHIBIT D-3 PROCESS PLANT AND FACILITIES LAYOUT Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 C:\PWWORKING-TRO\ D(] MINE PROCESS PLANT AND FACILITIES LAYOUT °.-s/5/zA I `PERMIT AREA aourvogar I _-- ACCESS ROAD 8( ROLLER COMPACTED concaETE suLEs/Logoour TGj GATE sINEEXIT o PIT~ - - _ C 4 ei ]D,,� _ o. PLIMIT I r' --n EAvao F.cE i r�sulE HOUSE �UlC D Aw carAvaEssOR Ary !GRAVEL II 1,1 _ _ AND AIR COMPRESSORRICAL EMPLOYEE BREAKRDUM� l'''''''''''.".-'-"..---------1 II DRY SDSTORAGE i II I ii I PROCESS DISCARD STOCKPILE (PDSAT FULL II BUILDOUT), EO — / 9/ MAINTENANCE PARTS MOBILE nu PMervrsH ov �� _ sir IDRY SCREENING . NSTALLATION ��ll REINFORCED MENTCONCRETE - � U q � FUEL STATION GpEasE— n I o DE,OIL AN 1 3J1 DRYERu NITS FOR,Ig, e 'LyPIT LIMITFEED a i ° 4 BAG HOUSES RS AND RAMPS 4r i l ,EENOTE ----- SURGE saos D_ ,/ L DNG EIE f` oLE1TE-L ,PIT T I1 H 7H igl f.,:, ♦ WATERTRE ATMErvT l • r " WET PLANT _/ ENCLOSURE(R„,...... f MEDIUM GROWTH LP, AT to a ��, DLLBDaDo�„`:3LA<EE I�I Is "� II TER TREATMENT 1-.—,5D—'1 - iFIli DMD LI C CEO rplT CUD J 11\ — f \ (PROCESS 85 ACRES ICR- WESTERN HAUL ROADS 00 9 y 8 __— OLAND GAS WELL SYMBOL LEGEND: i-( WELL ABANDONED LOCATION N O' WELL SHUT IN WELL- PLUGGED AND ABANDONED IF WELL PRODUCING ...IL TEMPORARILY ABANDONED OT 1 ES'. MINING SHALL BE PERMITTED DURING DAYLIGHT HOURS ONLY, OO PRIVATE MERGENiY, OR TO QUIPMR MAKE THE NECESSARY REPAIRS4 G,OENC DRREPAPEACIUTI MAY UR 1301 HOURS PER DAY, W ITHOUTEE M APPROVAL. THE FACILITY MAY OPERATE SEVENOF COUNT, ISIONERS] DAYS PER 3 -NO DISTURBANCE TO PRAIRIE DOG TOWNS PROM MARCH 15 • OCTOBER 31. ACCESS TO MINE SHALL BE LIMITED BY WELLS RANCH B GUARD SHACK AND SECURITY GATES AT MINE ENTRANCE/EXIT. 160' T6' 0 160' 600 UNETVPE LEGEND: SYMBOL LEGEND: - PROPOSED REINFORCED CEMENT.CONaTTF PROPOSED EDGE OF ROAD POs[DE EQUIPMENT PROPOSED GRAVEL MAJOR PROPOSED CONTOUR MIN RPDBUILDINGONTOUR EERION DIVIDE I V V EXISTING PFAIRIEDDGTOWN PERMIT AREA DARv SECTIONQUARTRSVISITOR GAS DEMOLITION PROPOSED GATE HAUL ROAD gDDGAs EXISTING EXISTING EASEMENT AVEL SCALE : 1' = 180' JUNE 2024 EXHIBIT D_3 COLORADO SAND COMPANY II, LLC KERSEY MINE MINE PROCESS PLANT & FACILITIES LAYOUT ‘ AN\ Talc TRC ENVIRONMENTAL CORP. DHR a ,Po,'g =4sa,P„M, D"NN°Y. ALDIF G ,.ON on ay: ARD,H Lm. ..°,' Ru . oxewz LA . �4 ,D,N.MRLA. „M Exhibit D Page 29 EXHIBIT D-4 PROCESS FLOW DIAGRAM Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 CORVWORMO-TR00,733REAOR PROCESS PLOW KNEW -NCO,. N24 SUMP 2701.1-2 PUMP2101.1-1 d I I I I CONVEYOR ----------------- ------ k I I I I I I I I I WIU SAOIZR PUMP RETURN =CREAM( r cri RN RETU TER PUMP SPRAY WPUMP WA 03 ATE0. CONVEYOR SUMP 2702.1-2 CONVEYOR SUMP 4701 PUMP 4101 I I I I I I I I I I I +I I I I I I I I I I I I I `I I I I I I I I I I JUNE 2024 EXHIBIT D-4 COLORADO SAND COMPANY II, LLC KERSEY MINE PROCESS FLOW DIAGRAM TaC =a DERAJEWSKI TRC ENVIRONMENTAL CORP. REVISION Exhibit D Page 30 EXHIBIT D-5 USE OF POLYMERS Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Barr white paper •� e O Barr EngInserrtnig Cm Environmental Impacts of Water Treatment Chemicals at Industrial Sand Mines summary The silica sand unique to western Wisconsin and southeastern Minnesota is used as a proppant in the hydraulic fracturing process that is fueling the resurgence in domestic energy produc- tion. Siting and permitting of these "frac sand" mines tend to be controversial, with opponents focusing on potential negative impacts of increased truck traf- fic, changing land use, air emissions, and concerns about water quality. This paper explores concerns about potential water quality degradation by the use of the two most common flocculants—or set- tling agents —at these mines, polyacryl- amide and polydimethyldiallyammonium chloride (polyDADMAC). Although other types of flocculants are in use, these chemicals currently appear to make up a majority of our clients' flocculant use. introduction Polyacrylamide anionic flocculants are commonly used to enhance settling of solids in the clarifier associated with the wash plant at a silica sand facility. I .. resourceful. naturally. J BAR R Environmental Impacts of Water Treatment Chemicals at Industri al Sand Mines BARR This compound has been safely used for decades in the United States to treat public drinking water. Polyacryl- amide also is widely used in a variety of industries and can be found at food processing facilities, used as blast- ing agents, used for drilling mud and grout products, and used as a soil -stabilization agent. Acrylamide is a monomer used in the production of the anionic polyacrylamide flocculant. It is not a breakdown or daughter product of polyacrylamide. A small amount of residual, unreacted acrylamide monomer remains in the polyacrylamide flocculant as an impurity when it is added to the wash process. PoIyDADMAC cationic coagulants are commonly used to enhance the performance of the belt press associated with wash plants. This compound is also widely used in the United States to treat public drinking water. DADMAC thremonomer used in production of the cationic polyDADMAC coagulant. These products serve a significant benefit to the op- eration of a mine site because they reduce the overall footprint of the mine, which would otherwise require extensive settling basins. In some cases, these settling basins can result in a dditional co sts related to water management and berm construction. Both of these compounds are readily biod egradable and monitoring at frac sand mines in the Midwest indicate that there is no evidence of groundwater contamina- tion associated with either of these compounds. This paper provides additional background on each of these chemicals and a detailed analysis of the fate of these compounds using a k inetic model that includes biodegra- dation and other chemical processes. regulatory background Although no adverse human health effects are associ- ated with the polyacrylamide polymer adverse human health effects have been lin ked to an impurity ca Iled acrylamide, which is a monomer, or pa I of the po y- acrylamide molecule used in the production of the anionic polyacrylamide flocculant. A very small amount of the monomer molecule is present in the raw chemical feedstock that remains unreacted in the polyacrylamide flocculant when it is mixed in the wash proces s used in the trine s wet plan k this acrylamide monomer (not polyacrylamide ) that is classified by the U.S . Environmental Protection Agency ig as a Ik2probable human carcinogen. ' There are no negative health effects ass ociated with the actual col acrylamide flocculant itself ; only the acrylamide monomer. Because of this classification and its common use as a settling agent, or flocculant, at municip al drinking w ater treatment plants , the EPA has established a National Primary Drinking Wer Regulation (RR) for acryl- amide. This NM established the de facto limit of 0.5 micrograms per liter Ot) for acrylamide throu gh a treatment technology standa rd. This standard is based on a maximum concentration of acrylamide monomer in commercial polyacrylamide flocculant (500 ham and a ma imum dosing concentration of flocculants (1.0 lopm directly to potable Miller hile the EPA has approved laboratory methods for acrylamide, Barr has found no laboratory able andwi Ilingto perform the procedure on process wastewater Barr has identified at least one laboratory that can measure acrylamide monomer con - centrations near these to w concentrations (less th an 1 og) using a non -EPA approved method. This paper addresses uses typical of polyacrylamide at mine sites and related proce Laing cites. (ittvever is appropriate to note that polyacrylamide can be highly toxic to a quatic life if dieharged directly into surface wa- ter habitats. Although this ty pe of discharge is not typi- cal of the mine site processing any potential discharge involving unre acted polyacrylamide dntering su ace water should be avoided. k�nli e the acrylamide monomer, the DADMA monomer has not been linked to adverse health e ffects. DADMAC has no [SIP WR and no s econdary standards, nor has it been des ignated by the EPA as a Contaminate of Come in CC L1 (Contaminate of Croth691 1), CCL2 or CCL3.z Furthermore there are no EPA or MPCA sfi ace water standards for DADMAC, nor has the Minnesota Depart ment of Health or the Wistconsin Depa ment of Natu- ral Resources established health risk limits. The water 1 EPA. 1994. Chemical Summary forAcrylamide. http:// www.epa.gov/chemfact/s acryla. txt 2 EP A2012. Basic Information onCCL and Regulatory Determinations.http://water.epa.gov/scitech/drinkingwater/ dws/ccl/basicinformation.cfm Page 2 Environmental Impacts of Water Treatment Chemicals at Industrial Sand Mines BARR treatment industry has established standards (NSF/ANSI 60) that limit DADMAC monomer in drinking water to 50 ug/L, or 100 times the de facto standard for acrylamide.3 Because DADMAC has no known human health concerns associated with it, there is less published data and little risk analysis concerning its fate in the environment, mining process water Most industrial sand mines utilize a wash water loop, similar to the one depicted in Figure 1 (below). Water from a reservoir (augmented with makeup water, usually from a groundwater source) is used to slurry raw sand. This slurry is processed by a series of screens, scalpers, and density separators to separate the sand by particle size. Fines are generally returned to the mine pit or stockpiled until used for site reclamation, while sized sand is transported to the dry plant for further process- ing. Polyacrylamide anionic flocculants are used to enhance settling of solids in the clarifier, or thickener, associated with the process. The clarifier produces an underfloor, which is essentially a thick mud. Some facilities use a belt press to convert this mud into a solid or filter cake, which offers easier disposal. It is common for facilities that use a belt press to use a polydimethyldiallyammonium chlo- ride (polyDADMAC) cationic coagulant to enhance the performance of the belt press. fate of polyacrylamide The acrylamide monomer is highly soluble in water, is biodegradable under aerobic and anaerobic conditions, and has poor adsorption to minerals and organic mat- ter.4 The fate of this residual acrylamide monomer in the environment is discussed later in this document. Steady -State Kinetic Model of Acrylamide Monomer Concentration in Process Water and Quarry Pit The acrylamide monomer is highly soluble in water, and has poor adsorption to minerals and organic matter. Thus, the concentration of acrylamide that will exit the clarifier in the underflow slurry will equal the concentra- 3 www.nsf.org/newsroom_ pdf/NSPPactSheetPolyelectrolytes.pdf 4 EPA. 1994. Chemical Summary for Acrylamide. http:// www.epa.gov/chemfact/s_acryla.txt Control votume 45 gmp with rines �+ _ Slurry to Mine Pa i Wet Sand (103 gpm) Acrylamide Monomer —j i f Sand Washing Process . Makeup t — Water *— (155gpm) Underflow 1 V --�{ Belt Pressl > later Cake ( 7 g p m ) DADMAC! Monomer i Figure 1. Control volume used in estimating the steady- state DADMAC monomer concentration in the water leaving the sand wash loop. lion of the process water that overflows the clarifier and is recycled in the process. The water -phase concentrations of acrylamide monomer within each water reservoir at a typical wash plant facility (see Figure 1) can be characterized by the following mass balance equation: Accumulation = Incoming - Outgoing - Biodegradation Incoming The incoming rate of acrylamide monomer is directly related to the feed rate of the polyacrylamide flocculant added to the clarifier (see Figure 1). The Wisconsin DNR, as part of the Nonmetallic Mining Operations General Permit, requires permitted facilities to record on a monthly basis all water treatment additives and to report this amount annually. The concentration of the acryl- amide monomer in polyacrylamide flocculants is limited to 500 ppm. Biodegradation Acrylamide monomer is biodegradable. Biodegradation rates vary with the availability of oxygen, temperature, concentration of acrylamide monomer, concentration of capable microorganisms, and whether the capable Page 3 Environmental Impacts of Water Treatment Chemicals at Industrial Sand Mines BARR microbial community had previous exposure to acryl- amide monomer, For soil microbial communities not pre- viously exposed to acrylamide, higher initial acrylamide concentrations correspond to slower initial degradation kinetics 5. One of the slower reported acrylamide bio- degradation rates was for a previously unexposed soil sample subjected to a high initial acrylamide loading (999 mg acrylamide/kg so il), a low temperature (10°C), and aerobic conditions . The corresponding apparent first -order rate constant was 0.0027 hr -1 s. With prior exposure and acclimation to acrylamide, aero- bic microbial communities can biode grade acrylamide at much faster rates. Apparent first -order rate constants can approach 0.125 hr -1• ' s analysis of kinetic model The system of reservoirs provided in Figure 1 was evalu- ated using three apparent first -order biodegradation rate constants: K = 0.0 hr -1 (no biodegradation), K = 0.0027 ()hr -1 (blow oDegt&lation = 0.125 hr -1 (rapid biodegradation . The estim ated steady- state reservoir concentrations ( clarifier fresh water tan kand quarry bit casso ated with the three K values are provided in Table 1. With no biodegradation, the estimate d steady- state acrylamide concentrations were between 10 and 12 µg/L. With biodegradation, the estimated steady- state acrylamide concentrations ranged bm 0.001 to 1.5 µg/L. This compares to the de facto standard of 0.5 ug/L for potable drin king water, 5 LandeS.S., Bosch S. J., andHowardP.H. 1979. Degrada- tion and laching ofacrylamide insoil. Journal ofEnviron- mental Quality8(1): 133-137 . 6 Abdelmagid H. M. andTabatabai MA. 1982 Decomposi- tion ofacrylamide in soils. Journal of EnvironmentaQuality 11(4): 701-704. 7 ArimituH., Ikebukuro H. and Seto 11975. The biological degradability ofacrylamide monomerJournal of the Japan WaterWorksAssociation 487. 31-39 . Cited in WHO. 2011. Acrylamide inDrinking WaterBackgroundDocument for Development of WHO Guidelines foDrinking-Water Qulity. WorldHealth Organization, Gaeva, Switz http://www.who ihtisssraattation_ alth/4w /chemitals acrylamide.pdf 8 U.S. El9f14. Clre La SufumAny aphide. Of- fice of Pdlution Preventionand Toxidg .S. Environmertal Protection Agent', EP A749 -F -94-005a. htip: //www.epa.gov/ chemfact/s_acryla. tk Table 1. Estimated steady-state acrylamide monomer concentrations Reservoir Concentration of Acrylamide (ug/L) K Value (hr -1) Clarifier Fresh Water Quarry Pit Tank 0 11.7 11.5 10.3 000 1.45 1.29 03 0.125 0.54 0.41 0.0010 Fate of acrylamide monomer in soil and groundwater The acrylamide monomer exits the clarifier / sand wash loop th rough wet sand and reject material produced by the band was ing process Vlitua y all of the poiyacryl- amide fldcculants intro uced to the clarifier are expect- ed to adhere to soi I particles and exit the clarifier in the dr�de ow, and are ultimately d isposed with filter cake (or alte rnatively in Hari er mud ponds .) Because acrylamide r eadily brea ks do wn in soil and wa- ter, biodegradation should occur in the sand piles as well as in the soil and groundwater beneath them. In natural aerobic and anaerobic environments the half-life for the acrylamide monomer can be less than a day.9 This means more than 9 0 percent of the ol-igina monomer from these sources ould be biodegraded in less than three days . The Department of Land Conservation and Forest Man- agement ( DLC M) in Cbippe a County Wisconsin has rp uired fotlh permi ed mine sites to period Ha y mon - tor ground water for t he acrylamide monitor downgradi- ent from where the wbs water and flocculated solids are placed into o r on the ground sur face. As of January 18, 2013 (personal pdhiippeuieattion County), all samp les co Ilected and analy zed for the de partment have been non -detect for the acrylamide monomer. This pe resents more than one year of data. One of the sites in Chippewa County lino n as the Bloomer , uses a series of wash water trenches to de water the flocculated fines accumulated durin g the wash process (The mine does not uti bza belt press filter.) Acrylamide has not been detected in soil samples collected fpm the native soil at the base of the tr edches provi ing evidence that biodegradation is occurrin g even at cooler temperatures found in the ubbsu ace 9 EPA. 1994. Chemical Summary famticryl de. http:// www.epa.govichemfact/s_acryla.tk Page 4 Environmental Impacts of Water Treatment Chemicals at Industrial Sand Mines BAR fate of PoIyDADMAC PoIyDADMAC cationic coagulants are commonly used to enhance t he performance of the belt press associ- ated with wash pl ants. This compound is also widely used in the United States to treat public drinking water, DAD MAC is a monomer used in the produc lion of the cationic pol yDADMAC coagulant. A small amount of residual, unreacted DADMAC monomer remains in the polyDADMAC coagulant when it is added to the process. The differences between the DADMAC and acrylamide ommhomers the fate of residual DAD MAC monomer in the environment are discussed I ater in this document. The DADMAC monomer is soluble in water, biodegrad- able under aerobic conditions, and has poor adsorption to minerals and organic matter.10 Because of its solubil- ity and its inabi ty to adsorb to so lids OE water concentration of the DADMA monomer in the filtrate produced by the belt press will e qual the co ncentration within the process water that o verflows the clfiri er and is rec iei i n the wash I oop. *de, the DAD MAC monomer is considered di °degradable. The acrylamide mo nomer has a sho er half -life than DADMAC (appro imately one day ldays for arkDMA . Neither monomer is consid- ered bioacculmative. Both ertenomers considered to have low environmental to xiot . Because the DADMAC monomer is readily biodegradable in water, it will achie e a steadytate concentration in the clfiri er/ sand wash I oop. Due to its higher monomer concentra tion an d longer riaIf it is expected to have a higher steady state concentration than : i..ylt istimpo ant to note that there are no published recom- mdn ed ogre alator standard for DADMAC. Given the selati ely small volume of pol yDADMAC used most facilities (in comparison to poi ye ,amide and the selati ely small concentration of DADMAC monomer the expected ytetel concentration is e xpected to be selati ely low (less than 1mg/L). Since DADMAC re aclil ibrea s down in soil an d water, bi dtigda on should occur in the sand piles as well as 10 EPA.2004. Test Plan for DADMAC. http://www.epa. gov/hpv/pubs/stunmariewlialdirne/c15208t12.pdf in the s oil and gro undwater beneath them Be ause DA DMAC carries no known human health con- cerns, ther is fess published data and little ris k analysis °once gr its fate in the environment. We have not been ebto locate su fficient in formation on DADMAC to derive steady state concentr tions of the compound as we were for acrylamide. eke er, given the evidence that it is highly biode goad ble, it is assumed that if acryl- ehni a degrades yapidl than the same condi tons would result in s imilar pe rformance fr6m DADM C monomer analytical methods and monitoring requirements There are no practical, EPA appro ed laboratory meth- ods for monitoring of acr ylamide or DAD MAC. The EPA through a treatment technology standard , limits the em unt o f anionic pplyac lamide used at water treat mprp Ian s by limiting the amount of the mono er in flocculants to I ess th an 500 pro s per m illion (ppm) e¢ lamide, used at a concentration of 1.0 ppm or less This gives a de facto safe Idrin ing water limit of 0.5 Ok The EPA has listab she no treatment standards for DAD MAC. NSF 60 has estab f ished an all owable concentration in drin king water of 0 dig or 100 times higher than the de facto standard for acrylamide bia Laborator in Kelso, Wgthin on has de- eelo ed a practical, non -PP -appro yd anal sis method forracryla ide. It uses li quid ehrom tography Land em mass spectrometry (LC-MS/MS) technology and has a m imimu detection I imit at or below the EPA's I imit of 0§/ ATSDR study In 2008, The U.S. Depa rtment of Health and Hem n Services *igenc for Toxic Substances a nd Disease Reg - 1s -y ( ATSDR) published a Health Co nsultation regarding potential environmental e xposures to ac ylamide from the on -ti a disposal of sand fine sludge and wash water fncthe Belvidere Sand & Gravel (BS&G) site in Warren County, New lytrse . BS&G uses a pol ya¢ lamide floc culant in their closed I oop aggregate washing process similar toth ose used by the Industri al Sand industry Petitioners e xpressed P5nce about potential co n- tra ination of potable wells b yyacr lamide and resulting Page 5 Environmental Impacts of Water Treatment Chemicals at Industrial Sand Mines BARR neurological sym ptoms reported by area residents. The ATSDR, in conjunction with the New Jersey Department of Health and Senior Services, conducted an extensive study of the site, and concluded "the site poses no public health hazard. Community health concerns (i.e. neuro- logical conditions and cancer) are unlikely to be associ- ated with exposures to site -related acrylamide."1 conclusion Polyacrylamide anionic flocculants and polyDADMAC ced@dants ment chemicals used at industrial sand mines. Both chemicals contain trace amounts of residual monomers resulting from their manufacture. are two commonly used water treat - The EPA classifies the acrylamide monomer as a prob- able human carcinogen and has established a de facto National Primary Drinking Water Regulation of 0.5 ug/L for the acrylamide monomer. There are no federal or state DADMAC concentration limits for either surface water or groundwater, presum- ably because there are fewer toxicity concerns. Conse- quently, very little the mica) data are available to perform a detailed mass balance and risk evaluation. This leads us to conclude that the compound is unlikely to result in significant environmental effects. The acrylamide monomer is readily soluble in water, and has poor adsorption to minerals and organic matter Thus, while the majority of the polyacrylamide floc- culant will exit the clarifier with the solids in the under - flow, the vast majority of the a erylamid monomer ill flow through the clarifier and be Eecycl d. We expect a steady state concentration to form in the clarifier smash loop. This wi II be the same as the initial con - 11 www.atsdr.cdc.gov/HAC/phaBelvidereSandGravelSite/ Belvidere_Sand Gravel Site%20HC%208-20-2008.pdf centration of the water contained in the wet sand piles and filter cake Between biodegradation and d ilption the concentration of acrylamide monomer in the gyarr pit will be virtually bndetecta le, based on the kinetic Mode The acrylamide monomer readily biodegrades in w ater and soil At cid and ammonia are break down prod - bcts . As micro-organisms acclimate they become more efficient at remo ing acrylamide from soil and water At our modeled wet plant, we ex pect significant biodeg- radation of acrylamide to occur in the soil beneath the wet sand piles and filter cake so that concentrations of acrylamide reaching groundwater willtbe insignifican A monitor ng program has been in affect at mines in Chippewa Cou nty,, Wisconsin, for over a year To date, the ac ryla ide monomer has not been detected in any groundwater samples. Because the DA illiFi monomer is readily soluble in water, and has poor adsorption to minerals and organic matter, the tyajori of the PfbiyDAD AC coagulant w ill exit the ¢larifier sand wash loop with the filter ca ke. A relatively small p roam on of the coagulant consisting of the DADMAC monomer wi II enter the ¢larifier sand wash loop and be recycled. We expe t a steady state boncentra on to form in the sari er and sand wash loop . This will be the same as the initial concentration of the ater contained in the wet sand piles and filter cake The DADMAC monomer 'read ly biodegrades in water and soi I. We expect significant biodegrada lion of DAD - PVC to occur in the soil and g roundwater beneath the wet sand piles bnd fi ter cake. While no practical EPA pp roved anal ytical method exists for acrylamide, a laboratory has been found that has developed a test method capable of analy zip for acryl- amide to the EPA's de facto Idrin ing water standard. Page 6 Exhibit E Page 1 EXHIBIT E RECLAMATION PLAN Per Rule 6.4.5: (1) In preparing the Reclamation Plan, the Operator/Applicant should be specific in terms of addressing such items as final grading (including drainage), seeding, fertilizing, revegetation (trees, shrubs, etc.), and topsoiling. Operators/Applicants are encouraged to allow flexibility in their plans by committing themselves to ranges of numbers (e.g., 6 -12" of topsoil) rather than specific figures; and, (2) the Reclamation Plan shall include provisions for, or satisfactory explanation of, all general requirements for the type of reclamation proposed to be implemented by the Operator/Applicant Reclamation shall be required on all the affected land. The Reclamation Plan shall include: (a) A description of the type(s) of reclamation the Operator/Applicant proposes to achieve in the reclamation of the affected land, why each was chosen, the amount of acreage accorded to each, and a general discussion of methods of reclamation as related to the mechanics of earth moving. The current, or pre -mining use of the Permit Area is that of mixed -use rangeland and industrial activity (e.g., oil and gas production). The proposed post -mining restoration objective is to return the Permit Area to that of mixed -use rangeland, and to the extent such activity remains at the time of mine closure and reclamation, continued oil and gas production. Inasmuch as the proposed Permit Area is located upon privately -owned lands that are wholly controlled by Wells Ranch LLC, an entity principally engaged in the cattle ranching business, Colorado Sand Company II, LLC (CSC) has developed the Reclamation Plan in direct consultation with, and with the direct concurrence of, that entity. The type and manner of reclamation proposed by CSC is consistent with the desires of Wells Ranch LLC, particularly with respect to the post -mining land use. Thus, the post -mining land use of "rangeland" (as per the Division of Reclamation, Mining, and Safety [DRMS] Application options), as well as continued oil and gas production has been selected, and the approximately 4,018 -acre Permit Area, in its entirety, will be (formally) accorded the post - reclamation land use of "rangeland". In order to accomplish a post-mining/post-reclamation land use of rangeland, CSC will carry out "concurrent reclamation" throughout the life -of -mine (LOM), wherein salvageable growth medium will be pre- stripped in advance of mining, to be re -placed atop a previously mined area and seeded, on an annual basis. In addition, certain "advance" reclamation activities will be carried out (as previously described in Exhibit D: Mining Plan) with the objective being to minimize the outstanding reclamation obligations both during active mining and at the end of LOM. Thus, certain areas of (prior) mining disturbance will be at varying stages of revegetation growth (due to the sequential annual aspect). Nonetheless, all areas will be subject to a post -reclamation five-year monitoring and maintenance period. Upon cessation of active mining, the terminal pit (and other non -reclaimed areas, to the extent such remain) will be reclaimed and, all structures and appurtenant facilities will be demolished and/or removed from the site and the respective affected areas reclaimed in a manner consistent with this Reclamation Plan (as well as DRMS requirements). No ponds or impounding features are anticipated to remain post -closure within those areas that were subject to mining. The remnant (wide -area) mine pit depression(s), however, will serve as natural infiltration features, thereby Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 2 eliminating the potential for adverse erosional effect(s) normally anticipated with more natural run-on and/or run-off conditions. Side -slopes associated with pit perimeters and/or encountered utility (and other) easements will be established at a minimum 3H:1 V (and in some instances, as low as 5H:1 V) to ensure long-term stability (as the post - mining slopes will be at or greater than natural angle of repose for the sand matrix). This will facilitate ease of movement and overall accessibility (throughout the area) by livestock, again consistent with the prescribed (formal) post -mining land use designation of rangeland. To the extent such remain present at end of LOM, existing ranch access and/or oil and gas service roads will be either maintained in, or restored to, their approximate original configuration(s). In general, mine planning has strived to minimize impacts on existing features and/or incorporate "avoidance" where feasible. (a) Reclamation Measures for Other Features Because the Project will employ open -cut mining only, there will be no waste rock dumps nor any underground mine openings associated with the Kersey Mine Project. The process discard stockpile (PDS) will remain present following the completion of mining activities; however, it is anticipated that slope reduction (to a minimum 5H:1 V configuration) will be carried out on the feature at the time of mine closure. Pit perimeter diversions (largely present in the form of safety berms) will be removed as a component of crest reduction when establishing the minimum slope gradient (which may range from 3H:1V to as low as 5H:1V, dependent on localized conditions/constraints) along pit perimeter and/or utility (and other) easements. To the extent (internal) minor seepage routing or other "diversion" features are present, such features will be removed in conjunction with concurrent reclamation efforts, ensuring that the post -mining pit floor will serve as the primary infiltration feature. Post -mining topography will ostensibly reflect a relatively minor (i.e., < 2%) but consistent gradient (to the southeast); however, all mined -out areas will be effectively "lowered" (typically, by as much as 30 ft.) across the pit area(s), with localized areas generally reflective of the vertical extent of sand resource extracted. It is anticipated that standard 4 -strand barbed wire fencing will be installed by or in cooperation with the Wells Ranch LLC prior to initiation of operations (to preclude cattle access to the active mining area) on a to -be - determined basis, and throughout the LOM. Planned exclusion of cattle from each given reclaimed area will continue for a five-year duration or until bond release (full or partial), after which the subject area will be returned to Wells Ranch LLC with no further restrictions. Thus, it is anticipated that the success rate for long-term revegetation and site stabilization will be proportionately increased. (b) A comparison of the proposed post -mining land use to other land uses in the vicinity and to adopted state and local land use plans and programs. In those instances where the post -mining land use is for industrial, residential, or commercial purposes and such use is not reasonably assured, a plan for revegetation shall be submitted. Appropriate evidence supporting such reasonable assurance shall be submitted. The proposed (formal) post -mining land use of the Permit Area is "rangeland"; however, the Permit Area is currently subject to "mixed use" (e.g., a dual use in the form of oil and gas activity) and such activity may continue following cessation of mining. Surrounding areas (generally comprised of abutting portions of the Wells Ranch LLC holdings) exhibit similar and/or compatible land uses, with grazing (in conjunction with oil and gas production) prevalent throughout the surrounding area (refer to Exhibit A-3, General Site Location, and Exhibit A-5, Mine Access Route, for maps depicting surrounding land use). Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 3 The land directly surrounding the Permit Area consists mainly of "rangeland" occupied by numerous inactive oil and gas wells and associated well pads. Although not currently grazed, the Permit Area has been historically utilized for cattle grazing, and such future use is reportedly contemplated by Wells Ranch LLC. CSC notes that a sod production farm and a dairy farm facility, respectively, are situated approximately three miles to the northwest of the Permit Area; and a natural gas facility is present approximately one mile to the southeast. In addition, another dairy farm facility, a ranch, and two farms are located at or within a distance of approximately three miles (to the west) of the Permit Area. None of these surrounding land uses are anticipated to be significantly or adversely affected by the proposed mining operation. The current Weld County zoning/land use designation for the subject property (i.e., the Wells Ranch) upon which mining is to be conducted is that of "Agriculture". This zoning classification allows mining to be conducted, subject to "special use" review. Accordingly, the proposed Kersey Mine is also subject to the Weld County "Use by Special Review permitting process. The zoning designation will remain unchanged (unless otherwise modified), as will the post mining land use. (c) A description of how the Reclamation Plan will be implemented to meet each applicable requirement of Section 3.1. CSC has addressed the requirements of Rule 3: Reclamation Performance Standards, Inspection, Monitoring and Enforcement in the following manner: (1) Rule 3.1.1: Establishing Post -Mining Use CSC has developed the Reclamation Plan in consultation with the landowner, Wells Ranch LLC. The Permit Area in its pre -mining condition (in its virtual entirety), is rangeland, albeit occupied by numerous active and/or inactive oil and gas wells, associated well pads, access roads, and related infrastructure. The Permit Area was historically, although not currently, grazed. Avoidance of existing oil and gas facilities, to include well heads (active and abandoned), pipelines, storage tanks, etc. is a component of the CSC mining plan, augmented by Structure Agreements and/or lease terms and conditions, to ensure non -disruption of such activities. To the extent present, such oil and gas facilities and activities will remain (undisturbed) in the post -mining (and post- reclamation) condition. To the extent such facilities are (to be) abandoned or otherwise closed/removed by the operator, CSC has developed formal Agreement(s) and will develop an Oil and Gas Facility Management Plan (refer to Exhibit D: Mining Plan and Exhibit S, Permanent Manmade Structures) to ensure worker health and safety as well as implementation of consistent advance location, delineation, and removal procedures at all times. The CSC mining activities will effectively result in an overall lowering of the surface topography due to the removal of the targeted sand resource, culminating in a mined -out area depression on the order of 25 to 30 ft., on average. Under steady-state conditions, growth medium will typically be salvaged immediately in advance of mining, in conjunction with immediate replacement over the prior year's disturbance area (i.e., the "concurrent reclamation" concept), with seed application occurring immediately thereafter (subject to seasonal constraints). A five-year post - reclamation monitoring and maintenance period will be employed at each reclaimed area to ensure that vegetation and stabilization objectives are achieved. Thus, the post- mining land use of rangeland will be re-established. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 4 (2) Rule 3.1.2: Reclaiming Substitute Land There is no "substitute land" involved with the Kersey Mine project. Therefore, CSC does not propose reclamation of such. The "affected area" is wholly contained within (and coincident with) the designated Permit Area. All "affected area" or area(s) of disturbance within the Permit Area are to be reclaimed in a manner consistent with the Reclamation Plan, as stated. (3) Rule 3.1.3: Time Limit and Phased Reclamation CSC acknowledges the obligation to complete all reclamation activities "with all reasonable diligence", and that "each phase of reclamation shall be completed within five (5) years from the date the Operator informs the Board or Office that such phase has commenced". As stated above (re: Item 1 - Rule 3.1.1: Establishing Post -Mining Use), under steady-state conditions, concurrent reclamation will be carried out (on an annual basis) for the full life -of -mine, to be followed by a five-year post - reclamation monitoring and maintenance period to ensure that vegetation and stabilization objectives are achieved. Terminal pit reclamation and site facilities and infrastructure demolition and removal are proposed to occur immediately following cessation of mining (and processing) activities; those areas, as well, will be subject to the five-year post -reclamation monitoring and maintenance plan. (4) Rule 3.1.4: Public Use All lands incorporated into the Permit Area are owned fee -simple by Wells Ranch and as such, are private property. The ranch holdings, in the pre -mining condition, are maintained as private property with no right of public access, as evidenced by the presence of a controlled -access site entry, perimeter fencing, and other locked/gated points of access. CSC presumes that Wells Ranch LLC will continue to restrict public uses. (a) Where applicable, plans for topsoil segregation, preservation, and replacement for stabilization, compaction, and grading of spoil; and for revegetation. The revegetation plan shall contain a list of the preferred species of grass, legumes, (orbs, shrubs or trees to be planted, the method and rates of seeding and planting, the estimated availability of viable seeds in sufficient quantities of the species proposed to be used, and the proposed time of seeding and planting. As discussed in Exhibit D: Mining Plan, initial site development will encompass the pre -stripping and temporary stockpiling of an anticipated nominal 12 -inch "growth medium" horizon from the plant area footprint at a location south of the plant area, and within the western portion of the Year 7 mine block (e.g., TS -0). This would be followed by plant construction and concurrent pit initialization within the Year 1 mine block box cut in order to simultaneously secure sufficient run -of mine (ROM) material (to initiate processing shakedown operations and commissioning) while establishing sufficient pit void to accommodate both the long-term growth medium stockpile (TS -1) and the PDS. Due to the anticipated duration each stockpile would remain in place (up to 7 years for TS -0 and up to full life -of - mine for TS -1), stabilization at each stockpile location would employ vegetative cover(s) generally consistent with the seed mix depicted in Table E-2, below, as well as ongoing routine monitoring and maintenance for the duration of operations and/or until each stockpile is eliminated (through recovery for concurrent reclamation activities). Since the stockpiles will be subject to ongoing recovery, side -slopes would be maintained at a nominal 5H:1V gradient (i.e., approximate angle of repose). Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 5 Topsoil Segreaation, Preservation, and Replacement The initial eight (8) years of mining operations (i.e., as associated with growth medium pre -strip) will contribute (in large part) to a build-up in the total volume of the TS -I stockpile sufficient to accommodate final site closure requirements; however, limited volumes (i.e., the remainder) will be dedicated to initial (concurrent) reclamation efforts. The TS -1 peak volume of approximately 592,000 cubic yards of material is anticipated to be reached in Year 8, with a minor decline (in total volume) occurring thereafter, while maintaining sufficient volume to address final site reclamation obligations. Under steady-state conditions (and once sufficient pit void has been developed to accommodate early -stage placement of material in TS -1 and the PDS, respectively), it is anticipated that the material balance will approximate that depicted in Table E-1: Reclamation Sequence and Projected Material Balance. Concurrent reclamation will be carried out in a manner that allows pre -stripping of growth medium in advance of the pit progression with that same material being back -hauled to previously mined out areas and/or TS -1, as per requirements. In general, pre - stripping will be limited in areal extent in order to minimize the potential for wind-borne dust generation and erosion concerns; a typical pre -strip area will generally comprise approximately 15- to 20 acres, typically immediately in front of the advancing active mine face. The TS -1 stockpile will be established with 5H: 1V (nominal) side slopes to ensure long-term stability while facilitating (interim) revegetation efforts. Temporary seeding (and reseeding, as may be required) will be utilized to establish and sustain an interim vegetative cover, which in turn will enhance the feature's resistance to wind-borne and/or precipitation induced erosional effects. At its full build -out capacity of approximately 592,000 cubic yards, it is estimated that the TS -1 stockpile will occupy an approximately 21 -acre footprint area (refer to Exhibit D-2: Mine Plan). It is anticipated that concurrent reclamation will commence in Year 3 and continue through to the end of LOM (i.e., Year 20) on an annual basis. Accordingly, growth media will be removed in advance of mining and subsequently directly placed behind mining activities in a nominally equivalent thickness of 8 to 12 -inch depth. Seeding of this re- established growth medium will occur, typically each fall. Stabilization, Grading, and Compaction of Spoil There will be no "spoil" generated during the mining activities conducted at the Kersey Mine, as there is no "overburden", per se. Only the aforementioned "growth medium" overlies the target sand resource that is to be mined. Aspects pertaining to pre -stripping (salvage), stockpiling, and stabilization are addressed above. With concurrent reclamation (under steady-state conditions), virtually all growth medium generated by pre - stripping (in advance of mining) will be placed atop a prior year's (mined out) pit floor, except as may be otherwise noted in Table E-1: Reclamation Sequence and Projected Material Balance. In areas where the sand resource base is less than the nominal 30 -ft thickness (resulting in the mining of an incrementally larger surface area to accommodate annual ROM requirements), surplus growth medium will generally be transported to the TS -1 long- term stockpile. In the pre -strip operation, the material will be excavated utilizing front-end loaders and/or hydraulic excavators. Due to the nature of the material (and the method of excavation), the material will remain in a loose, unconsolidated Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 6 condition until/when deposited atop the (mined out) pit floor. Using dozers and/or other suitable equipment, the material will then be spread in a manner that achieves a relatively consistent and nominal 8- to 12 -inch cover across the entire pit floor area. Other than the limited (and unavoidable) heavy equipment induced compaction, no compaction is specified or proposed. Rather, natural consolidation, as a component of the re -placement, is the desired objective (prior to seed application) to facilitate final revegetation efforts. The planned replacement thickness for growth medium is virtually equivalent to that removed during pre -stripping activities (that being a nominal 8 to 12 -inches as the objective). However, due to localized surface irregularities, etc., CSC anticipates that the replacement thickness may vary from location to location, but on an overall average basis, will likely remain within the targeted objective of 8 to 12 inches. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 7 TABLE E-1: RECLAMATION SEQUENCE AND PROJECTED MATERIAL BALANCE (TABLE) Source/Location Mine Block (Acres) Mine Block Pre -Strip (CY) EOY Volume TS -1 (CY) Cumulative Affected Acres Annual Acres Reclaimed Cumulative Acres Reclaimed Cumulative Un-reclaimed Acres Year 1 130.1 107,578 0 130.1 0 0 130.1 Pre-Production/Development Plant Area Pre Strip 106.55 Initial Pit Pre -Strip 89.5 Note: All to TS -0 (Temporary) Remainder Yr 1 Mine Block 130.1 107,578 Note: All to TS -0 (Temporary) Year 2 107.5 172,672 0 237.6 0 0 237.6 Pre-Production/Development Yr 2 Mine Block 107.5 Note: All to TS -0 (Temporary) Year 3 93 149,213 362,203 330.6 41.7 41.7 288.9 Relocate TS -0 to TS -1 (N/A) 280,250 Yr 3 Mine Block to TS -1 Yr 3 Mine Block to CC Reclaim Year 4 76.1 122,009 396,448 406.7 54.4 96.1 310.6 Yr 4 Mine Block to TS -1 Yr 4 Mine Block to CC Reclaim Year 5 71 113,668 439,106 477.7 44 140.1 337.6 Yr 5 Mine Block to TS -1 Yr 5 Mine Block to CC Reclaim Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 8 Source/Location Mine Block (Acres) Mine Block Pre -Strip (CY) EOY Volume TS -1 (CY) Cumulative Affected Acres Annual Acres Reclaimed Cumulative Acres Reclaimed Cumulative Un-reclaimed Acres Years 6-10 605.8 967,970 582,995 1083.5 511.3 651.4 432.1 Mine Blocks to TS -1 Yr-11 Reclaim Mine Block to CC Reclaim Years 11-15 421.4 675,868 520,971 1504.9 456.7 1108.1 396.8 Mine Blocks to TS -1 Yr-16 Reclaim Mine Block to CC Reclaim Years 16-21 396.6 632,631 -127,332 1901.5 793.5 1901.6 -0.1 Mine Blocks to TS -1 Yr-21 Reclaim Mine Block to CC Reclaim Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 9 Existing root zones, plants, and other organic materials will be recovered during the pre -stripping activities. As demonstrated by pre -mining conditions, the surficial soils currently serve as a viable growth medium for rangeland species. Concurrent reclamation will help to ensure that the material retains its characteristics as an adequate and viable growth medium. The material to be placed in TS -1 stockpile will likely be subject to routine interim revegetation enhancements, and as such, should similarly retain its characteristics as an adequate and viable growth medium (after replacement) at end of mine life. Surficial soils over the 0 to 12 -inch depth horizon within the Permit Area are generally consistent with that same depth profile throughout the immediately surrounding area. No soil amendment or nutrient addition is planned as residual plant materials will remain present within the stockpiled material; and, straw crimping will be employed during the seeding process, as discussed below. Seedbed Preparation, Seed Mix, and Timing of Seeding The decommissioned plant site and any remaining disturbed areas will constitute the final stages of site reclamation, occurring only after all areas are mined out, and all feedstock material has been processed through the plant and sold or otherwise disposed. Mining areas will be seeded commencing in Year 3 as a component of concurrent reclamation, and this will continue on an annual basis through to the end of mine life. All primary seed application efforts are anticipated to be undertaken during the fall season of each year; however, ongoing monitoring and maintenance of revegetated areas may introduce some variability into the timing of seeding at localized areas where revegetation success objectives so dictate. • Plant Site Area Seedbed preparation will consist of removal all concrete foundations to a nominal 18 inches below grade, as well as removal of any/all concrete, asphalt, and crushed gravel from surfaced areas. The inert debris will be placed (and consolidated to the extent practicable) within the pit void, adjacent to the process waste stockpile. Gravel or rock -surfaced areas will be removed (for similar in -pit disposal) and/or dozer ripped and sacrificed into the substrate. Once these steps are completed, an over -grading of the plant area portion of the site to re-establish approximate pre -mining ground contours and natural drainage pathways will occur. This may be followed by a discing of the surface, (if determined necessary), to minimize or mitigate any resultant compaction effects, and to ensure that residual plant root systems and organic materials are retained within the uppermost 8 to 12 -inches. A nominal 8 to 12 -inch cover of growth medium will then be applied across the area in its entirety; and the area will then be considered ready for seeding. • Process Discard Stockpile (PDS) Area CSC will utilize a dozer and/or excavator for crest reduction, as well as further overall slope reduction within the waste stockpile area, as warranted. In order to ensure full -depth burial of the concrete debris emplaced adjacent to the stockpile, slope reduction will incorporate the dozing of sufficient material over the top of the debris (i.e., to ensure a nominal 5- to 10 -ft cover depth; and, to ameliorate potential settling effects) such that the resultant slope will more closely approximate 5H: 1V in this locale. This may be Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 10 followed by a discing of the surface (if determined necessary), to minimize or mitigate any compaction effects and to ensure that residual plant root systems and organic materials are retained within the uppermost 8 to 12 -inches. A nominal 8 to 12 -inch growth medium cover will be applied across the area in its entirety; and, the area will then be considered ready for seeding. • Mine Pits CSC will utilize a bulldozer and/or excavator for crest and further overall slope reduction along pit perimeter sidewalls, etc.; however, typically this will have been accomplished during the concurrent reclamation phase. The pit depression depth (i.e., post -mining profile) is anticipated to be approximately 30 ft., on average, with the localized post -mining depth being dependent on a number of variables, to include undulations in natural topography, mineable depth as determined by economically viable resource presence, etc., all of which are anticipated to somewhat differ across the full extent of the Permit Area. Immediately following pit sidewall slope reduction (to a 3H:1 V gradient or less), a nominal 8 to 12 -inch course of "growth medium" will be placed on the side -slopes and base of the pit depression(s); and, the areas will be considered ready for seeding. Since the reclaimed pit floor areas will consist of marginal quality eolian sands and/or silts, in conjunction with the nominal 8- to 12 -inch growth medium overlay, the pit depression(s) will not result in "impounding" features, but rather, they will function as large -area "infiltration" features, thereby facilitating localized infiltration of precipitation, etc. Aesthetically, the pit depressions (due to their large areal extent) are anticipated to blend with the surrounding natural topography. • Seeding Revegetation is largely focused on reestablishment of those rangeland plant species identified in Exhibit J: Vegetation Information. No trees or shrubs are planned as a component of the revegetation process; rather, all revegetation activities will be focused on reestablishment of the rangeland grass species. While sagebrush is noted as being present within the Permit Area (and surrounding ranch lands), albeit at a relatively low density, no specific attempt will be made to re -introduce or re-establish the species within reclaimed areas. However, to the extent sagebrush may be naturally re -introduced and established within the reclaimed Permit Area during (or after) the five-year monitoring and maintenance period, CSC will consider such to be beneficial to overall stabilization objectives and such growth will be neither discouraged nor otherwise managed. Sagebrush species will not be subject to (i.e., will be excluded from) the site's invasive weed species control plan and efforts associated therewith. The rangeland revegetation activities will be carried out in a manner consistent with that recommended by Weld County, with the seed mix and application rate developed as per the "sandy site" mix specification shown below in Table E-2; Seed Mixture and Application Rate (for drilled seeding applications). It is anticipated that all specified species will remain commercially available during the life -of -mine and any subsequent revegetation phases, to include the five-year post -closure monitoring and maintenance period. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 11 As stated in Item (iii), above, no trees or shrubs are to be planted. All revegetation activities will be focused on re-establishment of the rangeland grass species. The subject site, in its pre -mining condition, has no established trees of any species at any location within or immediately proximal to the Permit Area. • Seed Application Method The seed application rate depicted in Table E-2 is, as noted, for a drill seeding application method. However, CSC will monitor the ongoing results of concurrent reclamation efforts, to include ongoing consultation with Weld County and/or DRMS, to ascertain the optimal (most effective) seed application method for the desired post -mining rangeland use. In the event broadcast seeding is determined to be a more technically or logistically appropriate method, seed application rates will be doubled, as per Rule 6.3.4(1)(iv) and a Technical Revision will be submitted for approval prior to the onset of reclamation activities, with the reclamation bond amount being accordingly adjusted at such time. At this juncture, CSC proposes to utilize a drill seeding method, and that is accordingly depicted in Exhibit L: Reclamation Costs. In those areas where seedbed preparation may involve discing (i.e., the former plant site area and waste stockpile areas), seedbed will be considered sufficiently roughened to accept and hold (drilled) seed application. However, in the remaining pit areas where "growth medium" is placed and graded, the seedbed will be either raked or harrowed to further ensure seed retention. Both types of locations will be subject to crimping/mulching immediately thereafter. Mulching: CSC will employ straw crimping in conjunction with seed application, utilizing two (2) tons per acre of certified weed free straw, over the entirety of the site. Crimping will be accomplished via discing. As earlier noted, no fertilizer application is proposed, and all areas will be subject to natural revegetation processes (i.e., there will be no irrigation). Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 12 TABLE E-2. SEED MIXTURE AND APPLICATION RATE Species Sand Bluestem Sand Lovegrass Indian Ricegrass Prairie Sandreed Green Needlegrass Little Bluestem Yellow Indiangrass Switchgrass Sand Dropseed Total: *Lbs. PLS/Acre = Pounds of Pure Live Seed per Acre Lbs. PLS/Acre* 1.00 2.50 3.00 0.75 1.50 0.75 0.50 1.59 0.50 12.00 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 13 (e) A plan or schedule indicating how and when reclamation will be implemented. Such plan or schedule shall not be tied to any specific date but shall be tied to implementation or completion of different stages of the mining operation as described in Sub -section 6.4.4(1)(e). The plan or schedule shall include: (i) an estimate of the periods of time which will be required for the various stages or phases or reclamation; (ii) a description of the size and location of each area to be reclaimed during each phase; and, (iii) an outline of the sequence in which each stage or phase of reclamation will be carried out. [Note: The schedule need not be separate and distinct from the Reclamation Plan, but may be incorporated therein] Given the nature of concurrent reclamation, the general plan or schedule as to how and when reclamation will be implemented is, in part, discussed in Exhibit D: Mining Plan (with respect to the annual pit progression and concurrent reclamation activity); and, in Items (a) through (d), above. In addition, Table E-1: Reclamation Sequence and Projected Material Balance demonstrates the manner (e.g., sequence) in which life -of -mine reclamation activities will proceed (through closure), and it further shows that growth medium salvage, stockpiling, and re -placement volumes are adequate to facilitate full reclamation of the "affected area", in its entirety. (f) A description of each of the following: (i)final grading --specify maximum anticipated slope gradient or expected ranges thereof,. (ii) seeding - specify types, mixtures, quantities, and expected times of seeding; (iii) fertilization — if applicable, specify types, mixtures, quantities, and time of application; (iv) revegetation - specify types of trees, shrubs, etc., quantities, size and location; and, (y) topsoiling - specify anticipated minimum depth or range of depths for those areas where topsoil will be replaced. CSC provides the following discussion relative to each of the specified topics, and notes that each is addressed in greater detail within Item (d), above, and/or other supporting Exhibits to this application. (1) Final Grading- The maximum anticipated slope gradient for the reclaimed areas is anticipated to be a nominal 5H:1 V. In general, CSC anticipates utilizing the 5H: 1V slope gradient on all pit perimeter areas. CSC will employ a 3H: 1V slope gradient in conjunction with those mined areas which encroach upon or abut easements, rights -of -way, and/or physical structures such as oil and gas wells, and tank installations, etc. In this regard, all such features are specifically subject to "structure agreements", as per Rule 6.4.19 - Permanent Man -Made Structures. CSC anticipates that certain features may be subject to specific lease language (limitations) which may address the operator's obligations with respect to setbacks and/or slope gradients in greater detail. One specific exception to the nominal 3H: 1V slope gradient will be the (reclaimed) Process Discard Stockpile (PDS), which will be reduced to a lower gradient 5H:1 V to more appropriately reflect a stable post -reclamation slope gradient for the fine-grained material. (2) Seeding Details as to the specific types, mixtures, quantities, and expected times of seeding are provided under Item (d), above. (3) Fertilization, as discussed in Item (d), is not planned as a component of the revegetation process. CSC anticipates that the nutrient value contained within the growth medium itself, in combination with mulching during the seeding activity, will be sufficient to re-establish a rangeland vegetation density generally consistent with the surrounding area. (4) Revegetation - The revegetation process is discussed in detail in Item (d), above, with respect to the planned grasses and legumes to be introduced. CSC notes that neither trees nor shrubs are a component of the revegetation process. This is generally consistent with the pre -mining conditions. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit E Page 14 (5) Glossary Topsoiling - Although "topsoil" has not been identified as being present within the Permit Area, soils that are present currently support vegetation and rangeland uses in their undisturbed or pre -mining state and can be considered suitable growth medium (refer to Exhibit I: Soils Information). Such soils are ubiquitously present across the extent of the Permit Area, typically exhibiting an approximately 8 -inch root zone. Accordingly, CSC will pre -strip (salvage) this growth medium to a nominal depth of approximately 12inches at all locations of planned disturbance or "affected area". These pre -stripped volumes of growth medium will be either utilized in concurrent reclamation or, alternatively, be placed in interim stockpile storage locations as described in Item (d) above and Exhibit D: Mining Plan. For virtually all areas subject to disturbance, it is anticipated that replacement of the growth medium will occur to a nominal depth of 8 to 12 inches. Variability in replacement depth may result from a number of factors, to include undulations in topography, inherent equipment operational limitations, and/or a specific intent to vary the depth to address localized conditions. Nonetheless, on average, the minimum depth is anticipated to range between 8- and 12 -inches for the re -placed growth medium. CSC Colorado Sand Company II, LLC DRMS Division of Reclamation, Mining, and Safety LOM Life -of -mine PDS Process discard stockpile ROM Run -of -mine Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit F Page 1 EXHIBIT F RECLAMATION PLAN MAP Per Rule 6.4.6 — The map(s) of the proposed affected land, by all phases of the total scope of the mining operation, shall indicate the following: (a) The expected physical appearance of the area of the affected land, correlated to the proposed mining and reclamation timetables. The map must show proposed topography of the area with contour lines of sufficient detail to portray the direction and rate of slope of all reclaimed lands; and (b) Portrayal of the proposed final land use for each portion of the affected lands. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit F Page 2 EXHIBIT F-1 RECLAMATION PLAN MAP Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 CAPW WORKING-TRD\DD15302a\,1 RECLAMATION PLANO,.-B/5/2A • ACCESS ROAD WTI'S RANCH • PERMIT AREA BOUNDARY • STATE of COLORADO D D • • • • • STATE OF x COLD RADO • • JO RANCH LU METRE LEGEND: BouTogav (NOT PART Of PERMIT BOUNDARY) t SECTION 22 WELLS RANCE, )O RANCH ILC • PERM, AREA BOUNDARY • f i • • • ■ O • WELLS RANG, '173NING SHALL BE PERMITTED DURING DAYLIGHT HOURS ONLY, EXCEPT IN THE CASE OF PUBLIC OR PRIVATE EMERGENCY, OR TO OPERATE TRESTRIUION PER BOARDWENTY-POUR OUR ERDAY,'W FACILITIES MAY P IRS TO EQUIPMENT. PLANT APPROVAL. THE FACILITY WERYEARRODND MAY OPERATE SEVF COUNTY EINE(7)DAYSPER 680 390 0 880 1320 SCALE 880. } i RECLAMATION SEQUENCE: YEAR 3 YEAR 0 YEAR 5 \� YEARG �\` YEAR, YEARS YEA 9 I YEAR 10 �\ YEAR 1 YEAR 12 I YEAR 13 �y YEAR 15 YEAR 16 YEAR 12 \\\ YEAR 12 [�\� YEAR 19 \\ YEAR 20\� YEAR 21h\� TEMPORARY MINING DEFERRAL ZONE-TMDZ-1 {n'`\`� /\q\�y\\� TEMPORARY MINING DEFERRAL ZONE-TMDZ-2 F4IVA UNDISTURBED AREA OE OE PERMIT AR. BOUNDARY SECTION QUARTERS UNDERGROUND GAS OIL AND GAS WELL SYMBOL LEGEND: 0 WELL ABANDONED LOCATION (0 WELL SHUT IN • WELL -PLUGGED AND. ABANDONED WELL - PRODUCING V WELL TEMPORARILY ABANDONED SYMBOL LEGEND: 7:41.1 WATER WELL - CONSTRUCTED PROPOSED R INFORCED CEMENT CONCRETE PROPOSED GRAVEL JUNE 2024 EXHIBIT F-1 COLORADO SAND COMPANY II, LLC KERSEY MINE RECLAMATION PLAN MAP �i TIC TRC ENVIRONMENTAL CORP. DESMN BY: NO BRAWN MA [NECKED BY DERMEWRIG 100 NUM., Exhibit G Page 1 EXHIBIT G WATER INFORMATION Per Rule 6.4.7 -- Water Information (I) If the operation is not expected to directly affect surface or groundwater systems, a statement of that expectation shall be submitted. The Kersey Mine is not expected to directly affect either surface or groundwater systems. An existing manmade stock pond is located within the Permit Boundary but outside of the planned mine areas. The stock pond was historically filled using the nearby stock well that is planned for plugging and abandonment. The 0.38 -acre stock pond has not been used in several years and water was absent during October 2023 wetland and waterbody surveys and during the May 31, 2024 field visit. No other surface waters are in the Permit Area. The Kersey Mine Permit Area is generally isolated from offsite-sourced surface run-on from roadways. Based on the Barnesville, CO USGS topographic map, run-on/run-off is expected to follow the surface topography which slopes from the northwest (approximate elevation 4,780 feet above mean sea level (ft-amsl)) to the southeast (approximate elevation 4,625 ft-amsl) with a gradient ranging from 0% to 9%. The general nature of the surficial soils (i.e., silty sands (SM) to poorly graded sands with silt (SP-SM) with a rapid and high infiltration capacity) present at the location would preclude surface flow over any large distance with the exception of during heavy precipitation events (NRCS, 2023). Therefore, impacts from run-on/run-off are localized. Operations at the Kersey Mine will not result in any significant impacts on surface water within, or adjacent to, the Permit Area. With respect to the localized (and/or regional) groundwater system, the Kersey Mine is not anticipated to have a significant effect on groundwater features. Four groundwater wells were identified within the permit area based on information available through the Colorado Department of Water Resources, including: • One well (Permit No. 287429) located in the SE '/4 of the SW '/4 of Section 15 (near TMDZ-2 Area) is designated as a monitoring well and is reported to have a static water level of approximately 4,620 ft-amsl (30 feet below ground surface (ft-bgs)). This monitoring well is owned by Noble Energy and is associated with monitoring groundwater in response to a reportable release at an oil and gas facility. This oil and gas facility is outside of the planned mining area and will maintain a buffer during mining operations to protect the facility and on -site monitoring well. • One well (Permit No. 310849) located in NW '/4 of the NE '/4 of Section 15 (Year 19 Area) is designated as a domestic well currently used for watering livestock and is reported to have a static water level of 4,605 ft-amsl (55 ft-bgs). This well will be plugged and abandoned prior to mining. • One well (Permit No. 319490) located in the NW '/4 of the NE '/4 of Section 14 (near TMDZ-1 Area) is designated as a livestock watering source only and is reported to have a static water level of 4,616 ft-amsl (29 ft-bgs). This stock well is outside of the planned mining area and will maintain a buffer during mining operations if the well owner chooses to maintain the well through the life of the mine. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit G Page 2 • One well (Permit No. 3738) located in the NW 1/4 of the SW 1/4 of Section 2 was constructed in 1959 as a domestic well and was reported to have a static water level at approximately 25 ft-bgs at the time of drilling. This stock well will be plugged and abandoned prior to mining. The mining depth will be limited to the economic depth profile of the sand resource, which is anticipated to range from approximately 20 -ft. to 30 -ft. maximum depth in most areas. Two groundwater wells were identified in areas currently scheduled for mining (Permit Nos. 378 and 310849). The static groundwater levels for these wells are approximately 25 to 55 ft-bgs (based on original well records). Based on this information, the depth to the primary aquifer underlying the Site, and reviewing topographic elevations described by the Barnesville, CO USGS topographic map, groundwater is not expected to be disturbed by the planned mining activity (CO DWR, 2017). Therefore, operations are not expected to result in any negative disturbance of the identified groundwater system. Presence of Wetland and Waterbody Features CSC completed a wetland and waterbody delineation in October 2023 to identify the spatial extent and location of wetlands, streams, and other aquatic resources within the Permit Area. For purposes of this Exhibit, CSC considers "Study Area" and "Permit Area" to be effectively equivalent, and such terms are or may be used interchangeably. The wetland delineation and determination surveys were conducted in accordance with the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Great Plains Region Version 2.0 (USACE 2010), Corps of Engineers Wetlands Delineation Manual Technical Report Y-87-1 (USACE 1987), and subsequent guidance documents (USACE 1991a, b; 1992). Wetlands are classified by type using the Classification of Wetlands and Deepwater Habitats of the United States, commonly referred to as the Cowardin classification system (Cowardin et al., 1979). The approach recognizes the three parameters of hydrology, vegetation, and soils to identify and delineate wetland boundaries. Representative sampling points were selected to characterize habitat and plant communities and defined bed and bank features were used as criteria to identify streams. Aquatic resources that were identified in the field were mapped utilizing a GPS unit with sub -meter accuracy. CSC followed the September 2023 WOTUS rule to evaluate the jurisdiction of wetlands and waterbodies. Under this rule, the USACE recognizes jurisdictional determinations for wetlands and aquatic resources that are relatively permanent, standing or continuously flowing bodies of water with a continuous surface connection to a jurisdictional water (e.g., traditional navigable water, territorial seas, interstate water). Wetlands and aquatic resources determined by the USACE as having no continuous surface connection with jurisdictional waters are deemed non jurisdictional. Based on recent USACE guidance and the USACE's 2008 A Field Guide to the Identification of the Ordinary High - Water Mark (OHWM) in the Arid West Region of the Western United States (Lichvar and McColley 2008), delineated waterbodies were identified by the presence of bed and bank or other Ordinary High Water Mark (OHWM) indicators. The USACE criteria to identify jurisdictional determinations for waterbodies include the continuous presence of OHWM indicators and downstream connectivity to jurisdictional waterbodies. Downstream connectivity for delineated waterbodies in the field would be determined based on the continuous presence of an OHWM and connection to downstream waterbodies. Outside the Permit Area where land access was not available, aerial imagery was used to supplement field observations in determining adjacent surface water resources and downstream connectivity. For delineated features that did not have a continuous bed and bank or continuous evidence of an OHWM, these features were determined not to have downstream connectivity. Prior to survey, a desktop analysis was conducted to assess the likelihood of occurrence and probable location of wetlands and waterbodies within the Permit Area. According to the U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (MRCS) digital soil survey mapping of Weld County, there are three mapped soil Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit G Page 3 series present within the Permit Area. The soil map units within the Permit Area are classified as well drained to excessively drained with texture of sand to loamy sand and a hydric rating of zero (0). The U.S. Fish and Wildlife Service (USFWS) National Wetlands Inventory (NWI) digital wetland mapping National Wetland Inventory (NAAFI) digital mapping and National Hydrography Dataset (NHD) digital waterway mapping resources revealed one stream in the northeast corner of the Permit Area and two wetlands in the southeast section of the Permit Area (See Exhibit G-3, Figure 3). Upon field verification of this desktop data during the October 2023 surveys, OHWM indicators were absent and there was no indication of a water course in the vicinity of this NHD- mapped feature. Therefore, only one waterbody feature was observed and discussed below, subsequently leaving this feature out of any other surface and groundwater feature maps in this application. Notable findings of the surveys are described in the following sections: Surface Water Resources Based on field observations, no wetlands were identified within the Permit Area. NWI-mapped wetland locations were investigated and determined to lack one or more of the three criteria necessary to define a wetland. Although hydrophytic vegetation (saltgrass [Distichlis spicata]) was present, hydric soil indicators were absent, and hydrologic indicators were marginal at best. In addition, the NWI-mapped wetland locations occur in uplands adjacent to a remnant unlined stock pond historically and artificially fed by a well pump powered by solar panels. The pumped water required to fill the cattle pond is no longer necessary as cattle operations have ceased in the Permit Area. One 0.38 -acre manmade stock pond was delineated along an OHWM consisting of a defined bank situated above mud cracks. The stock pond contained no water at the time of the survey and contained one inlet structure from a solar -powered well pump and no outlet structures. Vegetation was mostly absent except for intermittent patches of saltgrass and kochia (Bassia scoparia) along and above the OHWM bench. One NHD-mapped stream located in the northeast section of the Study Area was further investigated. OHWM indicators were absent and there was no indication of a watercourse in the vicinity of the NHD-mapped feature. None of the features were observed to have downstream connectivity to jurisdictional waters. A request for an Approved Jurisdictional Determination (AJD) decision was submitted to the USACE on February 8, 2024, and granted by the USACE on March 11, 2024. The USACE confirmed that the observed surface water feature is not a jurisdictional water of the U.S. under Section 404 of the Clean Water Act (CWA). Copies of the AJD request and the USACE AJD letter are included as Exhibit G-1 and G-2. See the Kersey Mine Wetland and Waterbody Delineation Report (Exhibit G-3) for further detailed information, photographs, and figures. Groundwater Resources The Mine Site falls within the South Platte River Valley (USGS, 2000). The primary uppermost aquifer in the Permit Area is the Laramie -Fox Hills aquifer. The sandstone of the uppermost groundwater -bearing unit, the Fox Hills Sandstone, is approximately 150 to 200 feet thick and is generally comprised of fine- to medium -grained sandstone and siltstone deposits interbedded with shale and claystone (Robson and Banta, 1987). Historic records collected along the South Platte River Valley from 1953 to 2012 from 1,669 groundwater wells indicate the depth to groundwater average per decade over the entire aquifer ranges in depths of between 24 and 32 ft-bgs over the 60 - year record. The average depth to groundwater between 1953 and 1962 was approximately 32 ft-bgs followed by a rise in average groundwater depth between 2003 to 2012 to 30 ft-bgs following the curtailment of groundwater Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit G Page 4 pumping in the valley (USGS, 2013). The Permit Area elevation is approximately 90 to 100 feet above the South Platte River Valley study area. Therefore, the study suggests the primary aquifer is generally over 100 feet below the elevation of the Permit area. Perched groundwater derived from meteoric sources or elevation heads associated with the primary aquifer in the southernmost Permit Area are evident in groundwater wells located in areas not designated for mining activity at this time as discussed above. As shown in Table G-1, four registered groundwater wells have been identified within the Permit Area (and extending 200 ft. exterior therefrom), as follows. The location of each is also shown in Exhibit C-5: Surface and Groundwater Resources. TABLE G-1. GROUNDWATER WELLS WITHIN 200 FT. OF PERMIT AREA Permit No. Location UTM Coordinates Owner Total Depth (ft-bgs) Well Use / Status 287429 SE SW Sec. 15 E: 548722 N: 4471785 Noble Energy Inc 400 Monitoring / Not impacted by mining 310849 NW NE Sec. 15 E: 549184 N: 4472851 Wells Ranch, LLLP 350 Stock Watering / Planned for Plugging and Abandonment 319490 NE NW Sec. 14 E: 550786 N: 4472998 Wells Ranch, LLLP 42 Stock Watering / Not impacted by mining 3738 NW SW Sec. 2 UTM not provided Jack Holman 50 Domestic and Stock Watering / Planned for Plugging and Abaondonment (2) If the operation is expected to directly affect surface or groundwater systems the Operator/Applicant shall: (a) Locate on the map (in Exhibit C) tributary water courses, wells, springs, stock water ponds, reservoirs, and ditches on the affected land and on adjacent lands where such structures may be affected by the proposed mining operations. As indicated in Item (1), above, the Kersey Mine is not expected to directly affect either surface or groundwater systems. CSC has mapped all such features on the "affected land" or Permit Area and its immediate surroundings. Refer to Exhibit C-5: Surface and Groundwater Features, as provided herein. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit G Page 5 (b) Identify all known aquifers. Regionally, two principal aquifers exist in the vicinity of the Permit Area, the Laramie -Fox Hill Aquifer and the Dakota-Cheyene Aquifer, and one local aquifer system, the Fort Hays-Codell Aquifer. The Laramie -Fox Hills Aquifer occurs in the basal sandstone units of the Cretaceous Laramie Formation and the upper sandstone and siltstone of the underlying Cretaceous Fox Hills Sandstone. This aquifer averages 200 to 300 feet in thickness and consists of relatively thin siltstone and sandstone units interlayered with shale in the lower parts of the aquifer and one or more sandstone units 40 to 100 feet thick near the top of the aquifer (Robson and Banta, 1987). The first encountered economic aquifer beneath the Permit Area is the Laramie -Fox Hills Aquifer. The base of the Laramie -Fox Hills Aquifer in the vicinity of the Kersey Mine Permit Area is approximately 4,420 ft-amsl and the Fox -Hills Sandstone is an approximate 150 to 200 -feet thick lithology comprised of fine- to medium - grained sandstone and siltstone deposits interbedded with shale and claystone (Robson and Banta, 1987). Records indicate that the static groundwater level is approximately 30 ft-bgs near the southeastern section of the Permit Area and increases to greater than 100 ft-bgs in the northwest section of the Permit Area (CO DWR, 2023). Comparatively, the anticipated maximum mining depth at the Kersey Mine will be less than 50 -ft. (nominally, in the range of 20 -ft. to 30 -ft. depth, subject to variation/undulation in topography and economically mineable limits as may be dictated by sand presence and/or quality characteristics). All mining will be carried out within the unconsolidated surficial (eolian) sand zone. As indicated in Item (1) above, there is the potential for mining activity to encounter saturated zones and/or groundwater (to the extent present), near the southern Permit Area boundary. With respect to the regional and localized geology, CSC notes that the Site is located in the Denver Julesburg Basin (D -J Basin). The D -J Basin is a tectonic basin that is located in northeast Colorado, southeast Wyoming, and southwest Nebraska. The D -J Basin is bounded on the west by the Colorado Front Range (Dechesne, M. et al., 2011). Areas of the D -J Basin that are adjacent to the Rocky Mountain Front Range have been divided into two sub -basins. The southern sub -basin is the Denver Basin and the northern sub -basin is the Cheyenne Basin. The Denver and Cheyenne Basins are defined by the extent of the Laramie Formation and are separated by a structural feature called the Greeley Arch (Kirkham and Ladwig, 1979). The Fox Hills Sandstone is 150 to 200 feet thick and is comprised of fine- to medium -grained, olive -brown to orange -tan, poorly consolidated sandstone and siltstone deposited with shale and claystone in a marine deltaic or barrier -bar environment. The Fox Hills Sandstone conformably overlies the Pierre Shale and has a difficult - to -recognize transitional zone. The lower part of the Fox Hills Sandstone typically consists of relatively soft, sandy shale interbedded with thin, upward -coarsening layers of fossiliferous and concretionary sandstone. The upper 50 feet commonly consists of medium -bedded to massive, soft to hard sandstone interbedded with layers of shale (Robson and Banta, 1987). The Laramie Formation lies conformably above the Fox Hill Sandstone and has a genesis associated with an alluvial and deltaic continental deposit consisting of two members, a predominately sandstone member (lower) and a predominantly shale and claystone member (upper). The lower member is generally 100 to 200 feet thick and consists of tan to light, yellow -gray to white, relatively clean, fine- to medium -grained sandstone interbedded with lignitic shale and coal. The upper member of the Laramie Formation consists of 300 to 900 feet thick interlayered fresh- to brackish- water shale and siltstone, lignitic shale, coal seams, and thin, lenticular beds of fine -to medium -grained 400 -foot grained sandstone. This part of the Laramie Formation is commonly about 300 to 400 feet thick in the central D -J Basin and thickens to approximately 8,900 feet thick in the northern Denver Basin near Greeley. The sandstone sequence overlying the Laramie Formation has been Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit G Page 6 mapped as the Arapahoe Formation south of Greeley and may be absent in the Permit Area (Robson and Banta, 1987). References: Colorado Department of Water Resources (CO DWR, 2017). Groundwater Levels in the Denver Basin Bedrock Aquifers, 2017. Colorado Division of Water Resources, undated. Colorado Department of Water Resources (CO DWR 2023). GIS & Maps I Division of Water Resources (colorado.gov), December 1, 2023. Dechesne, M., Raynolds, R.G., Barkmann, P.E., and Johnson, K.R. (2011). Notes on the Denver Basin Geologic Maps: Bedrock Geology, Structure, and Isopach Maps of the Upper Cretaceous to Paleogene Strata between Greeley and Colorado Springs, Colorado; Colorado Geological Survey. Kirkham, R.M. and Ladwig, L.R. (1979). Coal Resources of the Denver and Cheyenne Basins, Colorado; Colorado Geological Survey Resource Series RS -5. Robson, S.G. and Banta, E.R. (1987). Geology and Hydrology of the Deep Bedrock Aquifers in Eastern Colorado, Laramie -Fox -Hills Aquifer. 1987. U.S. Army Corps of Engineers (USACE, 1991a). "Questions & Answers on the 1987 Manual," Memorandum from John F. Studt. October 7, 1991. U.S. Army Corps of Engineers (USACE, 1991b). "Implementation of the 1987 Corps Wetland Delineation Manual," Memorandum from John P. Elmore. August 27, 1991. U.S. Army Corps of Engineers (USAGE, 1992). "Clarification and Interpretation of the 1987 Manual," Memorandum from Major General Arthur E. Williams. March 6, 1992. U.S. Army Corps of Engineers (USAGE, 2010). Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Great Plains Region. Version 2.0, ed. J. S. Wakeley, R. W. Lichvar, and C. V. Noble. ERDC/EL TR-10-1. Vicksburg, MS: U.S. Army Engineer Research and Development Center. U.S. Army Corps of Engineers (USACE, 1987). Corps of Engineers Wetlands Delineation Manual. S. Army Corps of Engineers, Waterways Experiment Station, Wetlands Research Program, Technical Report Y-87-1. Vicksburg, MS. January 1987 - Final Report. 92 pp.+ app. United States Geological Survey (USGS, 2000). Colorado Water Science Center (CWSC) NAWQA South Platte River Study. NAWQA South Platte River Basin Study U.S. Geological Survey (usgs.gov). June 19, 2000. United States Geological Survey (USGS, 2013). Colorado Water Science Center (CWSC) South Platte Groundwater Analysis. South Platte Groundwater Analysis I U.S. Geological Survey (usgs.gov). December 3, 2013. United States Department of Agriculture Natural Resources Conservation Service (NRCS, 2023). Web Soil Survey - Home (usda.gov), November 22, 2023. (c) Submit a brief statement or plan showing how water from the de -watering operations or from runoff from disturbed areas, piled material, and operating surfaces will be managed to protect against pollution of either Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit G Page 7 surface or groundwater (and, where applicable, control pollution in a manner that is consistent with water quality discharge permits), both during and after the operation. Due to the nature of the deposit (eolian sand) and the limited likelihood of encountering free water conditions (i.e., rapid releases or significant flowing seeps, etc.), active de -watering is not anticipated in conjunction with mining operations. To the extent saturated conditions are encountered which may affect mining operations (i.e., minor seeps, saturated zones (e.g., "aquicludes"), or precipitation effects (originating as run-on or "footprint" precipitation), water near the mine wet plant will be routed to the "holding cells", a proximal localized low area southeast of the mine wet plant, where it will be allowed to naturally infiltrate into the underlying porous soils and/or evaporate. Water near mine pits will be routed to the mine pits and allowed to naturally infiltrate. Water accumulation within mine pit areas during mining may be routed at the pit floors to in -pit sumps or via other diversional features to minimize saturation in the vertical mining zones. All aspects of run-on and/or run-off management will be addressed in an appropriate manner through the administration of the facility's CDPS General Construction Stormwater Permit (COR400000) during facilities construction and the CDPS General Permit (COG500000) for Discharges from Sand and Gravel Mining and Processing, if needed, once operational. This will include the implementation of all appropriately engineered "control measures" (formerly "best management practices") based on 25 -year, 24 -hour design storm event, as defined within the respective Stormwater Management Plan(s) (SWMPs). The facility will not be subject to any process water discharge permit as all plant operations will be fully contained and will employ maximum recycling of all process waters within the process circuit. Thus, the facility will be operated as a "zero -discharge" facility. (3) The Operator/Applicant shall provide an estimate of the project water requirements including flow rates and annual volumes for the development, mining, and reclamation phases of the project. CSC anticipates minor water usage during the "development" phase, as such usage will likely be limited to dust suppression and/or geotechnical (i.e., moisture content additions to achieve specified compaction criteria, etc.) requirements associated with facility construction. At this juncture, CSC estimates this usage to be 30,000 to 50,000 gallons per day (gpd) for an anticipated 3 to 10 months. CSC has estimated that the Kersey Mine processing plant's in -circuit water capacity will be approximately 430,000 gallons in total, in order to sustain operations at a rate of approximately 11,500 gallons per minute (gpm). Maximum recycle is employed in the process; therefore, make- up water requirements are anticipated to be approximately 8% of total, or 920 gpm, with make-up requirements largely attributed to evaporative and other process -related losses as well as the residual moisture content in process waste fines, etc. The plant water supply will be provided directly to the plant facilities, with storage capacity also available within the process sumps, clarifier unit, and the 50,000 - gallon capacity recycle water tank. In addition to processing requirements (primarily washing, scrubbing, and screening of the sand product(s), water usage will also occur with respect to fugitive dust control on haul roads (estimated at 32,000 gallons per day), and other routine, but minor uses. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit G Page 8 Reclamation uses are anticipated to be minimal, and approximately equivalent to the "developmental" stage utilization levels (i.e., 30,000 to 50,000 gallons per day), with uses being limited primarily to haul road and other miscellaneous fugitive dust suppression applications. In addition to the foregoing, incremental water usage may be used in dust suppression associated with structure demolition and removal and other miscellaneous uses at closure. However, due to the selected post -mining land use being "rangeland", there will be no irrigation watering of the revegetated area(s). (4) The Operator/Applicant shall indicate the projected amount from each of the sources of water to supply the project water requirements for the mining operation and reclamation. CSC has identified one primary source of water to supply the Mine's water requirements during mine operation and reclamation. • New Cache la Poudre Ditch System, located to the northwest of the mining area. Water from this system is diverted through a series of pipelines to water storage ponds located north of the Site. The water will then be distributed to the Site as needed via a proposed water pipeline. The water source will be secured, stored, and piped to the mine to provide adequate water supply. The source can provide 100% of the mine's water requirements. Other known potential sources exist in the Site vicinity and can provide 100% of the necessary water supply. CSC may seek additional sources beyond the New Cache la Poudre Ditch System if warranted. All process water will be purchased from a third -party source (fully permitted and with adjudicated water rights appropriate for and consistent with the proposed use) and imported to the Site. Accordingly, all aspects of water usage associated with the Kersey Mine will be in compliance with applicable water laws and regulations. (S) The Operator/Applicant shall affirmatively state that the Operator/Applicant has acquired (or has applied for) a National Pollutant Discharge Elimination System (NPDES) permit from the Water Quality Control Division at the Colorado Department of Public Health and Environment, if necessary. The Kersey Mine operations will not result in any process water discharges. As such, no NPDES wastewater discharge permit (or the state -equivalent Colorado Discharge Permit System (COPS) industrial process water discharge permit) will be required and none has been applied for. During construction, the Kersey Mine will be subject to CDPHE's COR-0400000 which permits stormwater discharges associated with construction activities. A Site -specific Stormwater Management Plan (SWMP) will be developed and implemented for the construction phase. Once operations are initiated, if the potential for stormwater discharge exists, the mine may be subject to the requirements of a CDPS General Stormwater Permit (COG - 0500000), Sand and Gravel Mining, Wastewater, and Stormwater combined, to manage all aspects of stormwater management in conformance with the operation -specific SWMP. CSC will apply for coverage under the General Permit COR-0400000 and the construction phase SWMP will be implemented prior to the start of construction. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit G Page 9 EXHIBIT G-1 REQUEST FOR AN APPROVED JURISDICTIONAL DETERMINATION: KERSEY MINE (USACE - FEBRUARY 8, 2024) Note: The December 6, 2023 Wetland and Waterbody Delineation Report attached to this letter is provided in Exhibit G-3, Wetland and Waterbody Delineation Report: Kersey Mine Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 i TRC February 8, 2024 Mr. Kiel Downing Section Chief U.S. Army Corps of Engineers Omaha District — Denver Regulatory Office 9307 South Wadsworth Boulevard Littleton, Colorado 80528 123 N. College Ave., Ste. 370 T 970.484.3263 Fort Collins, CO 80524 TRCcompanies.com Sent via email to: DenverRegulatoryMailbox@usace.army.mil RE: Colorado Sand Company LLC — Kersey Mine Project Approved Jurisdictional Determination Request TRC conducted a wetland and waterbody delineation for Colorado Sand Company LLC's (CSC) proposed Kersey Mine Project located approximately 6.5 miles northeast of the Town of Kersey, Colorado. The Study Area as defined within the public land survey system encompasses Township 5 North, Range 63 West, Sections 2, 3, 10, 11, 14, 15, and a portion of Township 6 North, Range 63 West, Section 34, Weld County, Colorado. The enclosed Wetland and Waterbody Delineation Report dated December 6, 2023, was prepared subsequent to the survey effort. This report summarizes the desktop analyses performed prior to field survey and the results of the wetland and waterbody delineation and provides TRC's professional opinion on the expected jurisdictional status of any delineated features within the Study Area. TRC, on behalf of CSC, requests an Approved Jurisdictional Determination and subsequent No Permit Required (if applicable) in order to verify the permitting requirements of the Project. To facilitate this request, a Request for Corps Jurisdictional Determination (Regional Guidance Letter 16-01) is also enclosed. If you have any comments or questions regarding this request, please feel free to contact me at (813) 683-2797orbyemailatalaartz@trccompanies.com. Note: Permission to access property must be requested 48 hours in advance by contacting myself or Mr. Tim McCarthy (Tamarack Consulting) at 303-968- 7677 or tmccarthy@tamarackconsultingllc.com. 4'417L-t4J Amy Laartz, PWS Senior Environmental Scientist Enclosures: Wetland and Waterbody Delineation Report; Regional Guidance Letter 16-01 cc: Brady Reece (CSC) Tim McCarthy (Tamarack Consulting) Grant Waldie (TRC) Karen Baud (TRC) ,ff TR C Kersey Mine Wetland and Waterbody Delineation Report December 6, 2023 Prepared For: Colorado Sand Company LLC 2001 Kirby Drive, Suite 260 Houston, Texas 77019 Prepared By: TRC 1526 Cole Boulevard, Building 3, Suite 150 Lakewood, Colorado 80401 „ff C Table of Contents Acronyms and Abbreviations 1.0 INTRODUCTION 1 1.1 Project Location 1 2.0 REGULATORY BACKGROUND 1 3.0 SURVEY METHODOLOGIES 2 3.1 Desktop Review 2 3.2 Wetlands 2 3.3 Waterbodies 3 4.0 RESULTS 4 4.1 Precipitation 4 4.2 Land Use and Vegetation 4 4.3 Soils 5 4.4 Wetlands and Waterbodies 5 4.4.1 Desktop Analysis 5 4.4.2 Wetlands 6 4.4.3 Waterbodies 6 5.0 CONCLUSIONS AND RECOMMENDATIONS 6 6.0 REFERENCES 7 Tables Table 1. Rainfall Summary for Weld County, Colorado 4 Table 2. Soils Identified within the Study Area 5 Appendices Appendix A: Figures Appendix B: Photographs Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report i C Acronyms and Abbreviations Notation amsl COGCC CR CSC CWA CWQCD ESRI GPS NHD NLCD NOAA N RCS NWI OHWM Project Study Area TRC USACE USDA USFWS USGS WETS WOTUS Definition Above mean sea level Colorado Oil and Gas Conservation Commission County Road Colorado Sand Company, LLC Clean Water Act Colorado Water Quality Control Division Environmental Systems Research Institute Global Positioning System National Hydrography Dataset National Land Cover Database National Oceanic and Atmospheric Administration Natural Resources Conservation Service National Wetlands Inventory Ordinary High -Water Mark Kersey Mine Project Area used for the purpose of this wetland and waterbody delineation report located within the limits of construction for the proposed Kersey Mine Project. TRC Environmental Corporation U.S. Army Corps of Engineers U.S. Department of Agriculture U.S. Fish and Wildlife Service U.S. Geological Survey Wetlands (Tables) Waters of the United States Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report ii „.#Tr�C 1.0 Introduction Colorado Sand Company LLC (CSC) is proposing to develop the Kersey Mine Project (Project), a surface pit sand and gravel mine supplying fracture -grade sands for regional oil and gas markets. TRC Environmental Corporation (TRC), on behalf of CSC, conducted a wetland and waterbody delineation within the proposed limits of construction (Study Area) for the proposed Project in accordance with Section 404 of the Clean Water Act (CWA). Refer to Figure 1 (Appendix A). The objective of the wetland and waterbody delineation was to identify the spatial extent and location of wetlands, streams, and other aquatic resources within the Study Area. Aquatic resources that are considered Waters of the U.S. are subject to regulation under Section 404 of the CWA and Section 10 of the Rivers and Harbors Act. The jurisdictional regulatory authority of these resources resides with the U.S. Army Corps of Engineers (USACE) Omaha District (Denver Office). The wetland and waterbody delineation surveys were conducted on October 16 and 20, 2023, by Amy Laartz (Professional Wetland Scientist) and Mason Powers (Biologist). This report summarizes the desktop analyses performed prior to the field survey and the results of the wetland and waterbody delineation. This report also provides TRC's professional opinion on the expected jurisdictional status and anticipated impacts of any delineated features. 1.1 Project Location The Project is situated within approximately 4,018 acres of privately owned property north of County Road (CR) 388 and east of CR 61, approximately 6.5 miles east -north-east of the Town of Kersey, Weld County, Colorado. The Study Area as defined within public land survey system encompasses Township 5 North, Range 63 West, Sections 2, 3, 10, 11, 14, 15, and a portion of Township 6 North, Range 63 West, Section 34. Figure 1 (Appendix A) illustrates the Project Location. 2.0 Regulatory Background Wetlands and other waters of the United States (WOTUS) are protected under Section 404 of the CWA, which governs the discharge of dredged or fill material into WOTUS, and Section 10 of the Rivers and Harbors Act (33 U.S. Code 403), which regulates any work or structures that potentially affect the navigable capacity of a waterbody. Any activity that involves the discharge of dredged or fill material into WOTUS is subject to regulation by the USACE. WOTUS are defined to encompass navigable waterways; interstate waters; all other waters where their use, degradation, or destruction could affect interstate or foreign commerce; tributaries of any of these waters; and wetlands that meet any of these criteria or are adjacent to any of these waters or their tributaries. On August 29, 2023, the U.S. Environmental Protection Agency and the USACE issued a final rule that amends the "Revised Definition of 'Waters of the United States"' to conform key aspects of the regulatory text to the U.S. Supreme Court's May 25, 2023 decision in the case of Sackett v. Environmental Protection Agency. The conforming rule, "Revised Definition of 'Waters of the United States'; Conforming," was published in the Federal Register and became effective on September 8, 2023. Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report 1 1i C For this delineation, TRC used the September 2023 WOTUS definition rule to evaluate the jurisdiction of wetlands and waterbodies. Section 404 or Section 10 permits issued by the USACE under the authority of the CWA, as well as all wetlands and waters identified as "waters of the State," are subject to Section 401 water quality certification administered by the Colorado Water Quality Control Division (CWQCD). If the USACE determines that a Section 404 permit is required, CSC will be responsible for the submittal of a joint permit application and Pre -Construction Notification to both the USACE and the CWQCD individually. 3.0 Survey Methodologies 3.1 Desktop Review Prior to conducting field surveys, TRC completed a desktop analysis to assess the likelihood of occurrence and probable location of wetlands and waterbodies within the Study Area using the following data sources: • U.S. Fish and Wildlife Service (USFWS) National Wetlands Inventory (NWI) digital wetland mapping (USFWS 2023); • U.S. Geological Survey (USGS) National Hydrography Dataset (NHD) digital waterway mapping (USGS 2023a); • U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) digital soil survey mapping (USDA NRCS 2023); • Aerial imagery interpretation from Google Earth Pro (2023), Environmental Systems Research Institute (ESRI), and National Agriculture Imagery Program (ESRI 2018); and • USGS digital 7.5 -minute. 1:24,000 -scale topographic quadrangle map for Barnsville, Colorado (USGS 2023b). TRC screened historic aerial imagery of the Study Area ranging from 1985-2022 and current aerial imagery for indicators of hydrologic activity and saturation (wetness signatures) that could indicate the presence of unmapped wetlands (Google Earth Pro 2023). Digital soil survey mapping of the Study Area was reviewed by the USDA NRCS (2023). In addition, TRC reviewed precipitation data from approximately 90 days prior to the field investigations using data obtained from a nearby weather station (Greeley UNC, Colorado). Antecedent precipitation data were compared with the 30 -year average precipitation data from the same location to determine if hydrologic conditions at the time of the survey were normal, wetter, or drier than normal (National Oceanic and Atmospheric Administration [NOAA] 2023). 3.2 Wetlands The wetland delineation and determination surveys were conducted in accordance with the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Great Plains Region Version 2.0 (USACE 2010), Corps of Engineers Wetlands Delineation Manual Technical Report Y-87-1 (USACE 1987), and subsequent guidance documents (USACE 1991a, b; 1992). Wetlands are classified by type using the Classification of Wetlands and Deepwater Habitats of the United States, commonly referred to as the Cowardin classification system (Cowardin et al. 1979). Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report 2 �i TIRC On -site wetland determinations were made using the three criteria (vegetation, soil, and hydrology) and technical approach defined in the Regional Supplement. According to the procedures described therein, areas that, under normal circumstances, reflect a predominance of hydrophytic vegetation, hydric soils, and wetland hydrology (e.g., inundated or saturated soils) are considered wetlands. The geospatial boundary of each wetland would be captured using a Global Positioning System (GPS)-enabled tablet. Each wetland feature would be assigned a unique feature identification number with a "W" prefix. A Wetland Determination Data Form would be completed for each wetland and its associated upland data point. Upland data points would be assigned a unique feature identification number with a "U" prefix. Representative photos were taken of all identified features. TRC followed the September 2023 WOTUS rule to evaluate the jurisdiction of wetlands and waterbodies. Under this rule, the USACE recognizes jurisdictional determinations for wetlands and aquatic resources that are relatively permanent, standing or continuously flowing bodies of water with a continuous surface connection to a jurisdictional water (e.g., traditional navigable water, territorial seas, interstate water). Wetlands and aquatic resources determined by the USACE as having no continuous surface connection with a jurisdictional water are deemed non - jurisdictional for the USACE. TRC used aerial imagery to supplement field observations to anticipate determinations of downstream connectivity where land access was not available outside the Project. 3.3 Waterbodies Based on recent USACE guidance and the USACE's 2008 A Field Guide to the Identification of the Ordinary High -Water Mark (OHWM) in the Arid West Region of the Western United States (Lichvar and McColley 2008), delineated waterbodies were identified by the presence of bed and bank or other OHWM indicators. Common identifiable indicators of an OHWM include open water or evidence of a clear, natural line visible on the bank; shelving; changes in soil characteristics; disturbance to, or lack of, terrestrial vegetation; presence of litter and debris; and watermarks indicative of inundation during high water conditions. The OHWM typically represents the potential limits of USACE jurisdiction. The geospatial boundary of each waterbody would be captured using a GPS-enabled tablet. Each waterbody feature would be assigned a unique feature identification number with an "S" prefix. For NWI- and NHD-identified stream features where OHWM indicators were absent, representative photos and photo point locations were recorded. These areas are classified as uplands. The USACE criteria to identify jurisdictional determinations for waterbodies include the continuous presence of OHWM indicators and downstream connectivity to jurisdictional waterbodies. Downstream connectivity for delineated waterbodies in the field would be determined based on the continuous presence of an OHWM and connection to downstream waterbodies. Outside the Study Area where land access was not available, aerial imagery was used to supplement field observations in determining downstream connectivity. For delineated features that did not have a continuous bed and bank or continuous evidence of an OHWM, these features were determined not to have downstream connectivity. For features with periodic OHWM indicators but no downstream connectivity, the geospatial boundary of the waterbody would be mapped where the OHWM indicators were present. Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report 3 ti TR C 4.0 Results Desktop and field survey results are presented in the following discussion. 4.1 Precipitation The NOAA Agricultural Applied Climate Information System was used to obtain historical and antecedent rainfall data for the USDA NRCS Climate Analyst for Wetlands Tables (WETS) and NOAA Regional Climate Centers. Historical rainfall records from the Greeley UNC, Colorado weather station were used to determine the normality of rainfall using the Direct Antecedent Rainfall Evaluation Method (NOAA 2023). Precipitation data from the Greeley UNC, Colorado weather station was used to determine the measured rainfall for the three months prior to and during the survey period. Table 1 provides a rainfall summary for the Study Area for the October survey. Based on these calculations, this region of Weld County was determined to be normal for the survey period. Table 1. Rainfall Summary for Weld County, Colorado Prior Month WETS Rainfall Percentile (inches) Evaluation Month: October 2023 30th 70th Measured Rainfall (inches) Conditions Month Weightb Score Three months prior to October 16, 2023, Survey Date 1St September 0.53 1.33 0.28 1 3 3 2nd August 0.69 1.66 1.78 3 2 6 3rd July 0.75 1.85 3.07 3 1 3 Sum 5.13 12 Description d Normal a Condition values are 1 for < 30th percentile, 2 for between 30th and 70th percentiles, and 3 for > 70th percentile. b Month Weight is 3 for the most recent month, 2 for the prior month, and so on. c Score is the product of the Condition and Month Weight values. d Drier than normal (sum of score = 6-9), normal (sum of score = 10-14), wetter than normal (sum of score = 15-18). Source: NOAA 2023. 4.2 Land Use and Vegetation The Study Area topography is a mosaic of flat to small rolling hills. The elevation of the Study Area ranges from 4600 feet above mean sea level (amsl) to 4790 feet amsl.The Study Area is located within the High Plains Level III Ecoregion, classified further as Flat to Rolling Plains within that Ecoregion (Chapman et al 2006). The High Plains Ecoregion is characterized by rolling plains and grasslands situated at a relatively high elevation. Native vegetation in this Ecoregion consists of short -grass or mixed -grass prairie species, scrub, and some sagebrush steppe. Consistent with the aerial imagery, approximately 3,760 acres (approximately 93 percent) of land cover within the Study Area is classified as grassland herbaceous by the National Land Cover Database (NLCD). Approximately 230 acres (6 percent) are classified as shrub/scrub. The remaining approximately Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report 4 �i TrR C 30 acres (1 percent) are classified as developed open space; developed low intensity; and developed medium intensity (TRC 2023). Based on a review of current and historic aerial photography, the Study Area and adjacent properties have historically been used for fossil fuel extraction (Google Earth Pro 2023). According to Rextag and Colorado Oil and Gas Conservation Commission (COGCC) data, 81 unique pipeline segments are mapped within the Study Area totaling approximately 34.9 miles of documented pipeline. There are 11 segments of crude oil pipeline totaling approximately 8 miles, 69 segments of natural gas pipeline totaling 23.5 miles, and 1 segment of miscellaneous oil pipeline totaling approximately 3.4 miles. All operational segments are classified as gathering pipelines (TRC 2023). 4.3 Soils The National Technical Committee for Hydric Soils defines hydric soils as "a soil that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part." The major and minor components of a soil map unit are classified as to how likely they are to be hydric and are rated on a range from hydric to nonhydric. According to the NRCS Soil Survey for Weld County, there are three mapped soil series present within the Study Area (Figure 2 (Appendix A)). All soil map units within the Study Area are classified with a hydric rating of zero (0). Table 2. Soils Identified within the Study Area Map Unit Symbol Soil Type Drainage Class Hydric Soil Rating (percent) Percent of Study Area 69 Valent sand, 0 to 3 percent slopes Excessively Drained 0 34.9 70 Valent sand, 3 to 9 percent slopes Excessively Drained 0 63.7 72 Vona loamy sand, 0 to 3 percent slopes Well Drained 0 1.4 Source: USDA NRCS 2023.Wetlands 4.4 Wetlands and Waterbodies 4.4.1 Desktop Analysis The NWI and NHD public resource data sets depict one stream in the northeast corner of the Study Area and two wetlands in the southeast section of the Study Area. Based on current and historic imagery the wetlands may be associated with current and/or historic impoundments used for cattle operations (Google Earth Pro 2023). See Figure 3 (Appendix A) for NHD and NWI mapped waters. Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report 5 i TRC 4.4.2 Wetlands Based on field observations, no wetlands were identified within the Study Area. NWI-mapped wetland locations were investigated and determined to lack one of more of the three criteria necessary that define a wetland. Although hydrophytic vegetation (saltgrass [Distichlis spicata]) was present, hydric soil indicators were absent and hydrologic indicators were marginal at best. In addition, the NWI-mapped wetland locations occur in uplands adjacent to a remnant unlined stock pond historically and artificially fed by a well pump powered by solar panels. The pumped water required to fill the cattle pond is no longer necessary as cattle operations have ceased in the Study Area. See Figure 4 (Appendix A) and Appendix B for representative photographs and photo point locations. 4.4.3 Waterbodies One 0.38 -acre manmade stock pond (S-AJL-1) was delineated along a OHWM consisting of a defined bank situated above mud cracks. The stock pond contained no water at the time of survey and contained one inlet structure from a solar powered well pump and no outlet structures. Vegetation was mostly absent except for intermittent patches of saltgrass and kochia (Bassia scoparia) along and above the OHWM bench. See Figure 4 (Appendix A) for mapped features. Representative photos of the stock pond are presented in Appendix B. The NHD-mapped stream located in the northeast section of the Study Area was further investigated. OHWM indicators were absent and there was no indication of a water course in the vicinity of the NHD-mapped feature. See Figure 4 (Appendix A) and Appendix B for representative photographs and photo point locations. 5.0 Conclusions and Recommendations A wetland and waterbody delineation survey was conducted within CSC's proposed Kersey Mine Study Area on October 16 and 20, 2023. This region of Weld County was determined to be within its normal precipitation range for the three months leading up to the survey. Based on field observations, no wetlands and one waterbody were identified within the Study Area. The one 0.38 -acre waterbody (S-AJL-1), a former cattle pond, was not observed to have downstream connectivity to federally jurisdictional waterbodies. As none of the features were observed to have downstream connectivity to jurisdictional waters, the Project is not anticipated to be subject to regulation pursuant to Section 404 of the CWA. The ultimate authority to determine federal wetland and waterway boundaries and jurisdiction rests with the USACE Omaha District (Denver Office). Decisions made by the USACE may result in modifications to the conclusions stated in this report. Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report 6 „.#Tr�C 6.0 References Chapman, S.S., Griffith, G.E., Omernik, J.M., Price, A.B., Freeouf, J., and Schrupp, D.L. 2006. Ecoregions of Colorado: Reston, Virginia. U.S. Geological Survey (map SAN scale 1:1,200,000). Cowardin, L. M., V. Carter, F. C. Golet, and E. T. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish and Wildlife Service. FWS/OBS-79/31. Washington, DC. ESRI. 2018. USGS EROS Archive - Aerial Photography - National Agriculture Imagery Program (NAIP). Accessed October 2023, from: https://www.usgs.gov/centers/eros/science/usgs- eros-archive-aerial-photography-national-aqriculture-imagery-program-naip Google Earth Pro. 2023. Google Earth Pro historic aerial imagery of 40°24'44.66" N, 104°24'45.25" W. Accessed October 2023. Lichvar, Robert W. and S. M. McColley. 2008. A Field Guide to the Identification of the Ordinary High Water Mark (OHWM) in the Arid West Region of the Western United States. Prepared for the U.S. Army Corps of Engineers Wetland Regulatory Assistance Program. August 2008. National Oceanic and Atmospheric Administration (NOAA). 2023. AgACIS for Weld County. Accessed October 2023, from: http://agacis.rcc-acis.org/?fips=49007 TRC Environmental Corporation (TRC). 2023. Critical Issues Analysis for the Kersey Mine. Prepared for Colorado Sand Company LLC, November 2023. U.S. Army Corps of Engineers (USACE). 1987. Corps of Engineers Wetlands Delineation Manual. U.S. Army Corps of Engineers, Waterways Experiment Station, Wetlands Research Program, Technical Report Y-87-1. Vicksburg, MS. January 1987 - Final Report. 92 pp.+ app. U.S. Army Corps of Engineers (USAGE). 1991a. "Questions & Answers on the 1987 Manual," Memorandum from John F. Studt. October 7, 1991. U.S. Army Corps of Engineers (USACE). 1991b. "Implementation of the 1987 Corps Wetland Delineation Manual," Memorandum from John P. Elmore. August 27, 1991. U.S. Army Corps of Engineers (USACE). 1992. "Clarification and Interpretation of the 1987 Manual," Memorandum from Major General Arthur E. Williams. March 6, 1992. U.S. Army Corps of Engineers (USAGE). 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Great Plains Region. Version 2.0, ed. J. S. Wakeley, R. W. Lichvar, and C. V. Noble. ERDC/EL TR-10-1. Vicksburg, MS: U.S. Army Engineer Research and Development Center. U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS). 2023. Web Soil Survey. Accessed October 2023, from: https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report 7 �i TiR C U.S. Fish and Wildlife Service (USFWS). 2023. National Wetlands Inventory— Wetlands Mapper. Accessed October 2023, from: https://www.fws.gov/wetlands/data/mapper.html U.S. Geological Survey (USGS). 2023a. National Hydrography Dataset (NHD). Accessed October 2023, from: https://www.usgs.gov/core-science-systems/ngp/national- hydrography/ U.S. Geological Survey (USGS). 2023b. Barnesville, CO [map]. 1:24,000, Topographic Quadrangle Map, Reston VA. Colorado Sand Company LLC — Kersey Mine December 6, 2023 Wetland and Waterbody Delineation Report 8 Appendix A: Figures a wags ate• ° .YPdln Caw amp . �. .`. V {� \, \ \_ k c .... t• _ . • •..tf, w' . •H..�irri.rf ..... t'• h �..r _rwrw..a •.• Y7.s •! L' , s�•:�[ 1 e \ i\ ♦� .... \ (...) ___ / - .,... Q J l •'� I •6'41 I 1 •� ✓✓✓ Ai ! 404 +�t r. 11 %---- ' �. ,� % '' `- W p.. 4, 1 a —. 12 +6:8 _ 1 • - .•4 ,, �- . ' .+ . _,I • , ' �, �. I. ' -l� '.�' �r, .�'1 wa l! p v © S . _ 1 11:'1,- . _� '+fir"�°t�.� I i5 - - — —'° ,.,, , 5'‘) ft t) _ 111. STUDY AREA BASE MAP: USES TOP() MAP QUAD: BARNESVILLE DATA SOURCES: TRC 0 1,250 2,500 FEET 1:30,000 1" = 200' WY NM NE PROJECT: COLORADO SAND COMPANY, KERSEY MINE WELD COUNTY, COLORADO T[TLE: STUDY AREA LOCATION DRAWN BY: A. CLINE PR0J.NO.: 535891 CHECKED BY: B- TRACY APPROVED BY: A. LAARTZ DATE: NOVEMBER 2023 FIGURE 1 h4 TR C 1528 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 89401 PHONE: 303.792-5555 FILE COLORADO SAND CO PROPOSAL . "Ri.," .!,ac S . Map unit symbol Map unit name Rating Hydric Rating % Acres in AOI Percent of AOI - 69 Valent sand, D to 3 percent slopes Excessively drained D 1,4D4.50 34..90°I°• 70 Valent sand, 3 to 9 percent slopes Excessively drained D 2,560.8D 63.70°I° 72 Vona loamy sand, 0 to 3 percent slopes Well drained D 57.6 1.4D °!° `\ 1 1,. 72 7z �, �g 69 7a jp 69 . 69 70 7a 69 7D 7a 7a _ STUDY AREA 0 1,250 2,500 PROJECT: COLORADO SAND COMPANY, KER5EY MINE WELD COUNTY, COLORADO Q SOIL TYPES 69 - VALENT SAND, D TO 3 PERCENT SLOPES 70 -VALENT SAND, 3 TO 9 PERCENT SLOPES 72 - VONA LOAMY SAND, D TO 3 PERCENT SLOPES BASE MAP: ESRI "WORLD IMAGERY" BASEMRP DATA SOURCES: TRC, NRCS WEB SOIL SURVEY TaLE: MRCS SOIL MAP UNITS FEET 1:36.000 1" = 2;560' Greeley ❑ D DRAWN BY: A CLINE PROD No. 535881 CHECKED BY- B.. TRACY APPROVED BY: A. LAARTZ FIGURE 2 DATE NOVEMBER 2023 I) 1526 OULEVARD BUILDING COLE 3 SUITE 154 TR CLOOD, CO 80401 PN H 792 5555 FILE COLORADO 5AND CO PROPOSAL MINE.APRX; LAYOUT NAME: FIGURE 3 NHO & NW/ WATERS 8.5X17 PROJECT: COLORADO SAND COMPANY, KERSEY MINE WELD COUNTY, COLORADO STUDY AREA NHD/NWI STREAM/RIVER NHD/NWI WETLANDS BASE MAP: ESRI "WORLD IMAGERY" BASEMAP DATA SOURCES: TRC, NHD, NWI, FEMA 1,000 0 1,000 2,000 m FEET 1:46,000 1". 3,833' TITLE: NHD & NWI WATERS Greeley e DRAWN BY: J.STRONA PROJ.NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: A.LAARTZ DATE: DECEMBER 2023 FIGURE 3 <) TRC 1526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO_KERSEY MINE ?UT NAME P' h a Q STUDY AREA - STOCK POND (0.38 ACRES) 4 NHD/NWI PHOTO POINTS BASE MAP: ESRI "WORLD IMAGERY" BASEMAP DATA SOURCES: TRC, NHD 1,000 0 1,000 2,000 FEET 1:46,000 1". 3,833' PROJECT: COLORADO SAND COMPANY, KERSEY MINE WELD COUNTY, COLORADO TITLE: WETLAND AND WATERBODY SURVEY RESULTS Greeley e DRAWN BY: J.STRONA PROJ.NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: A.LAARTZ DATE: DECEMBER 2023 FIGURE 4 <) TRC 1526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO_KERSEY MINE Appendix B: Photographs Kersey Mine Project Photographs October 2023 romMINMI=IIIIIIIIMIMMIME Photo 1. NHD stream not present. Ordinary high water mark (OHWM) indicators are absent. View facing Northwest from the Project Boundary. ,,1.6 Photo 3. NWI wetland not present. Area is lacking hydrology and hydric soils indicators. View facing North. Photo 5. Stock pond (S-AJL-1). View facing North. Photo 2. NHD stream not present. OHWM indicators are absent. View facing Southeast toward the Project Boundary. Photo 4. NWI wetland not present. Area is lacking hydric soil indicators. View facing North. Photo 6. Stock pond (S-AJL-1). View facing South. Exhibit G Page 10 EXHIBIT G-2 APPROVED JURISDICTIONAL DETERMINATION LETTER: KERSEY MINE (USACE - MARCH 11, 2024) Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 DEPARTMENT OF THE ARMY U.S. ARMY CORPS OF ENGINEERS, OMAHA DISTRICT DENVER REGULATORY OFFICE, 9307 SOUTH WADSWORTH BOULEVARD LITTLETON, COLORADO 80128-6901 March 11, 2024 SUBJECT: NWO-2024-00197-DEN, Colorado Sand Company LLC - Kersey Mine Project — Approved Jurisdictional Determination Dave Patterson Colorado Sand Company, LLC 2001 Kirby Drive Houston, TX 77019 Dear Mr. Patterson: This letter is in response to your request received on February 8, 2024, submitted on your behalf by TRC, for an approved jurisdictional determination for Kersey Mine Project. The site is located at latitude 40.415009, longitude -104.413718, in Weld County, Colorado. Your request has been assigned the Corps Regulatory File Number referenced above. Please reference this file number on any correspondence to us or to other interested parties when referencing this project or concerning this request. The U.S. Army Corps of Engineers (Corps) regulates the discharge of dredged and fill material into waters of the United States under Section 404 of the Clean Water Act (CWA) (33 U.S.C. 1344) and structures or work in, over, and under navigable waters of the United States under Section 10 of the Rivers and Harbors Act (RHA) (33 U.S.C. 403). The implementing regulations for these Acts are published in the Code of Federal Regulations at 33 CFR parts 330-332. Based on our evaluation of the information provided and other available information, we have determined that the stock pond, S-AJL-1, is not a water of the United States. The attached approved jurisdictional determination provides rationale for why the aquatic resource does not meet the definition of waters of the United States. Based on this determination, a Department of the Army permit is not required for the discharge of dredged or fill material into the aquatic resource. This determination does not eliminate requirements to obtain any other applicable federal, state, tribal, or local permits. Attached to this letter is the approved jurisdictional determination for your project site. This jurisdictional determination is valid for a 5 -year period from the date of this letter, unless new information warrants revision of the determination before the expiration date. If you object to this determination, you may request an administrative appeal under Corps regulations at 33 CFR part 331. Enclosed you will find a Notification of Administrative Appeal Options and Process and Request for Appeal (NAO-RFA) form. If -2 - you request to appeal this determination, you must submit a completed NAO-RFA form to the address listed on the form. For an NAO-RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal under 33 CFR 331.5, and that it has been received by the Division Office within 60 days of the date of the NAO-RFA. It is not necessary to submit an NAO-RFA form to the Division Office if you do not object to the determination in this letter. In the event that you disagree with this approved jurisdictional determination and you have new information not considered in the original determination, you may request reconsideration of this determination by contacting this office prior to initiating an appeal. To request this reconsideration based upon new information, you must submit the new information to this office so that it is received within 60 days of the date of the NAO-RFA. The Corps' Omaha District, Regulatory Branch is committed to providing quality and timely service to our customers. In an effort to improve customer service, please take a moment to complete our Customer Service Survey found on our website at https://requlatory.ops.usace.army.mil/customer-service-survey/. If you do not have Internet access, you may call and request a paper copy of the survey that you can complete and return by mail. Additionally, further information regarding the Omaha District Regulatory Program can be obtained by visiting our website at https://www.nwo.usace.army.mil/Missions/Regulatory-Program/. If you have any questions concerning this jurisdictional determination, please contact Celena Cui at the above address, by phone at (303) 979-4120, or by email at Celena.H.Cui@usace.army.mil and reference file number NWO-2024-00197-DEN. Sincerely, Kiel Downing Chief, Denver Regulatory Office Enclosures cc: Amy Laartz, TRC Exhibit G Page 11 EXHIBIT G-3 WETLAND AND WATERBODY DELINEATION REPORT: KERSEY MINE Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 i TIRC Kersey Mine Wetland and Waterbody Delineation Report November 20, 2023 Prepared For: Colorado Sand Company LLC 2001 Kirby Drive, Suite 260 Houston, Texas 77019 Prepared By: TRC 1526 Cole Boulevard, Building 3, Suite 150 Lakewood, Colorado 80401 C Table of Contents Acronyms and Abbreviations 1.0 INTRODUCTION 1 1.1 Project Location 1 2.0 REGULATORY BACKGROUND 1 3.0 SURVEY METHODOLOGIES 2 3.1 Desktop Review 2 3.2 Wetlands 2 3.3 Waterbodies 3 4.0 RESULTS 4 4.1 Precipitation 4 4.2 Land Use and Vegetation 4 4.3 Soils 5 4.4 Wetlands and Waterbodies 5 4.4.1 Desktop Analysis 5 4.4.2 Wetlands 6 4.4.3 Waterbodies 6 5.0 CONCLUSIONS AND RECOMMENDATIONS 6 6.0 REFERENCES 7 Tables Table 1. Rainfall Summary for Weld County, Colorado 4 Table 2. Soils Identified within the Study Area 5 Appendices Appendix A: Figures Appendix B: Photographs Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report i .4% „Ay TRC Acronyms and Abbreviations Notation amsl COGCC CR CSC CWA CWQCD ESRI GPS NHD NLCD NOAA NRCS NWI OHWM Project Study Area TRC USACE USDA USFWS USGS WETS WOTUS Definition Above mean sea level Colorado Oil and Gas Conservation Commission County Road Colorado Sand Company, LLC Clean Water Act Colorado Water Quality Control Division Environmental Systems Research Institute Global Positioning System National Hydrography Dataset National Land Cover Database National Oceanic and Atmospheric Administration Natural Resources Conservation Service National Wetlands Inventory Ordinary High -Water Mark Kersey Mine Project Area used for the purpose of this wetland and waterbody delineation report located within the limits of construction for the proposed Kersey Mine Project. TRC Environmental Corporation U.S. Army Corps of Engineers U.S. Department of Agriculture U.S. Fish and Wildlife Service U.S. Geological Survey Wetlands (Tables) Waters of the United States Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report ii TIR C 1.0 Introduction Colorado Sand Company LLC (CSC) is proposing to develop the Kersey Mine Project (Project), a surface pit sand and gravel mine supplying fracture -grade sands for regional oil and gas markets. TRC Environmental Corporation (TRC), on behalf of CSC, conducted a wetland and waterbody delineation within the proposed limits of construction (Study Area) for the proposed Project in accordance with Section 404 of the Clean Water Act (CWA). Refer to Figure 1 (Appendix A). The objective of the wetland and waterbody delineation was to identify the spatial extent and location of wetlands, streams, and other aquatic resources within the Study Area. Aquatic resources that are considered Waters of the U.S. are subject to regulation under Section 404 of the CWA and Section 10 of the Rivers and Harbors Act. The jurisdictional regulatory authority of these resources resides with the U.S. Army Corps of Engineers (USACE) Omaha District (Denver Office). The wetland and waterbody delineation surveys were conducted on October 16 and 20, 2023, by Amy Laartz (Professional Wetland Scientist) and Mason Powers (Biologist). This report summarizes the desktop analyses performed prior to the field survey and the results of the wetland and waterbody delineation. This report also provides TRC's professional opinion on the expected jurisdictional status and anticipated impacts of any delineated features. 1.1 Project Location The Project is situated within approximately 4,018 acres of privately owned property north of County Road (CR) 388 and east of CR 61, approximately 6.5 miles east -north-east of the Town of Kersey, Weld County, Colorado. The Study Area as defined within public land survey system encompasses Township 5 North, Range 63 West, Sections 2, 3, 10, 11, 14, 15, and a portion of Township 6 North, Range 63 West, Section 34. Figure 1 (Appendix A) illustrates the Project Location. 2.0 Regulatory Background Wetlands and other waters of the United States (WOTUS) are protected under Section 404 of the CWA, which governs the discharge of dredged or fill material into WOTUS, and Section 10 of the Rivers and Harbors Act (33 U.S. Code 403), which regulates any work or structures that potentially affect the navigable capacity of a waterbody. Any activity that involves the discharge of dredged or fill material into WOTUS is subject to regulation by the USACE. WOTUS are defined to encompass navigable waterways; interstate waters; all other waters where their use, degradation, or destruction could affect interstate or foreign commerce; tributaries of any of these waters; and wetlands that meet any of these criteria or are adjacent to any of these waters or their tributaries. On August 29, 2023, the U.S. Environmental Protection Agency and the USACE issued a final rule that amends the "Revised Definition of 'Waters of the United States"" to conform key aspects of the regulatory text to the U.S. Supreme Court's May 25, 2023 decision in the case of Sackett v. Environmental Protection Agency. The conforming rule, "Revised Definition of 'Waters of the United States'; Conforming," was published in the Federal Register and became effective on September 8, 2023. Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report 1 Ni TRC For this delineation, TRC used the September 2023 WOTUS definition rule to evaluate the jurisdiction of wetlands and waterbodies. Section 404 or Section 10 permits issued by the USACE under the authority of the CWA, as well as all wetlands and waters identified as "waters of the State," are subject to Section 401 water quality certification administered by the Colorado Water Quality Control Division (CWQCD). If the USACE determines that a Section 404 permit is required, CSC will be responsible for the submittal of a joint permit application and Pre -Construction Notification to both the USACE and the CWQCD individually. 3.0 Survey Methodologies 3.1 Desktop Review Prior to conducting field surveys, TRC completed a desktop analysis to assess the likelihood of occurrence and probable location of wetlands and waterbodies within the Study Area using the following data sources: • U.S. Fish and Wildlife Service (USFWS) National Wetlands Inventory (NWI) digital wetland mapping (USFWS 2023); • U.S. Geological Survey (USGS) National Hydrography Dataset (NHD) digital waterway mapping (USGS 2023a); • U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) digital soil survey mapping (USDA NRCS 2023); • Aerial imagery interpretation from Google Earth Pro (2023), Environmental Systems Research Institute (ESRI), and National Agriculture Imagery Program (ESRI 2018); and • USGS digital 7.5 -minute. 1:24,000 -scale topographic quadrangle map for Barnsville, Colorado (USGS 2023b). TRC screened historic aerial imagery of the Study Area ranging from 1985-2022 and current aerial imagery for indicators of hydrologic activity and saturation (wetness signatures) that could indicate the presence of unmapped wetlands (Google Earth Pro 2023). Digital soil survey mapping of the Study Area was reviewed by the USDA NRCS (2023). In addition, TRC reviewed precipitation data from approximately 90 days prior to the field investigations using data obtained from a nearby weather station (Greeley UNC, Colorado). Antecedent precipitation data were compared with the 30 -year average precipitation data from the same location to determine if hydrologic conditions at the time of the survey were normal, wetter, or drier than normal (National Oceanic and Atmospheric Administration [NOAA] 2023). 3.2 Wetlands The wetland delineation and determination surveys were conducted in accordance with the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Great Plains Region Version 2.0 (USACE 2010), Corps of Engineers Wetlands Delineation Manual Technical Report Y-87-1 (USACE 1987), and subsequent guidance documents (USACE 1991a, b; 1992). Wetlands are classified by type using the Classification of Wetlands and Deepwater Habitats of the United States, commonly referred to as the Cowardin classification system (Cowardin et al. 1979). Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report 2 �i TRC On -site wetland determinations were made using the three criteria (vegetation, soil, and hydrology) and technical approach defined in the Regional Supplement. According to the procedures described therein, areas that, under normal circumstances, reflect a predominance of hydrophytic vegetation, hydric soils, and wetland hydrology (e.g., inundated or saturated soils) are considered wetlands. The geospatial boundary of each wetland would be captured using a Global Positioning System (GPS)-enabled tablet. Each wetland feature would be assigned a unique feature identification number with a "W" prefix. A Wetland Determination Data Form would be completed for each wetland and its associated upland data point. Upland data points would be assigned a unique feature identification number with a "U" prefix. Representative photos were taken of all identified features. TRC followed the September 2023 WOTUS rule to evaluate the jurisdiction of wetlands and waterbodies. Under this rule, the USACE recognizes jurisdictional determinations for wetlands and aquatic resources that are relatively permanent, standing or continuously flowing bodies of water with a continuous surface connection to a jurisdictional water (e.g., traditional navigable water, territorial seas, interstate water). Wetlands and aquatic resources determined by the USACE as having no continuous surface connection with a jurisdictional water are deemed non - jurisdictional for the USACE. TRC used aerial imagery to supplement field observations to anticipate determinations of downstream connectivity where land access was not available outside the Project. 3.3 Waterbodies Based on recent USACE guidance and the USACE's 2008 A Field Guide to the Identification of the Ordinary High -Water Mark (OHWM) in the Arid West Region of the Western United States (Lichvar and McColley 2008), delineated waterbodies were identified by the presence of bed and bank or other OHWM indicators. Common identifiable indicators of an OHWM include open water or evidence of a clear, natural line visible on the bank; shelving; changes in soil characteristics; disturbance to, or lack of, terrestrial vegetation; presence of litter and debris; and watermarks indicative of inundation during high water conditions. The OHWM typically represents the potential limits of USACE jurisdiction. The geospatial boundary of each waterbody would be captured using a GPS-enabled tablet. Each waterbody feature would be assigned a unique feature identification number with an "S" prefix. For NWI- and NHD-identified stream features where OHWM indicators were absent, representative photos and photo point locations were recorded. These areas are classified as uplands. The USACE criteria to identify jurisdictional determinations for waterbodies include the continuous presence of OHWM indicators and downstream connectivity to jurisdictional waterbodies. Downstream connectivity for delineated waterbodies in the field would be determined based on the continuous presence of an OHWM and connection to downstream waterbodies. Outside the Study Area where land access was not available, aerial imagery was used to supplement field observations in determining downstream connectivity. For delineated features that did not have a continuous bed and bank or continuous evidence of an OHWM, these features were determined not to have downstream connectivity. For features with periodic OHWM indicators but no downstream connectivity, the geospatial boundary of the waterbody would be mapped where the OHWM indicators were present. Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report 3 �i TR C 4.0 Results Desktop and field survey results are presented in the following discussion. 4.1 Precipitation The NOAA Agricultural Applied Climate Information System was used to obtain historical and antecedent rainfall data for the USDA NRCS Climate Analyst for Wetlands Tables (WETS) and NOAA Regional Climate Centers. Historical rainfall records from the Greeley UNC, Colorado weather station were used to determine the normality of rainfall using the Direct Antecedent Rainfall Evaluation Method (NOAA 2023). Precipitation data from the Greeley UNC, Colorado weather station was used to determine the measured rainfall for the three months prior to and during the survey period. Table 1 provides a rainfall summary for the Study Area for the October survey. Based on these calculations, this region of Weld County was determined to be normal for the survey period. Table 1. Rainfall Summary for Weld County, Colorado Prior Month WETS Rainfall Percentile (inches) Evaluation Month: October 2023 30th 70th Measured Rainfall Conditions Month Weightb Score(inches) Three months prior to October 16, 2023, Survey Date 1St September 0.53 1.33 0.28 1 3 3 2nd August 0.69 1.66 1.78 3 2 6 3rd July 0.75 1.85 3.07 3 1 3 Sum 5.13 12 Description d Normal a Condition values are 1 for < 30th percentile, 2 for between 30th and 70th percentiles, and 3 for > 70th percentile. b Month Weight is 3 for the most recent month, 2 for the prior month, and so on. c Score is the product of the Condition and Month Weight values. d Drier than normal (sum of score = 6-9), normal (sum of score = 10-14), wetter than normal (sum of score = 15-18). Source: NOAA 2023. 4.2 Land Use and Vegetation The Study Area topography is a mosaic of flat to small rolling hills. The elevation of the Study Area ranges from 4600 feet above mean sea level (amsl) to 4790 feet amsl.The Study Area is located within the High Plains Level III Ecoregion, classified further as Flat to Rolling Plains within that Ecoregion (Chapman et al 2006). The High Plains Ecoregion is characterized by rolling plains and grasslands situated at a relatively high elevation. Native vegetation in this Ecoregion consists of short -grass or mixed -grass prairie species, scrub, and some sagebrush steppe. Consistent with the aerial imagery, approximately 3,760 acres (approximately 93 percent) of land cover within the Study Area is classified as grassland herbaceous by the National Land Cover Database (NLCD). Approximately 230 acres (6 percent) are classified as shrub/scrub. The remaining approximately Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report 4 dti TRC 30 acres (1 percent) are classified as developed open space; developed low intensity; and developed medium intensity (TRC 2023). Based on a review of current and historic aerial photography, the Study Area and adjacent properties have historically been used for fossil fuel extraction (Google Earth Pro 2023). According to Rextag and Colorado Oil and Gas Conservation Commission (COGCC) data, 81 unique pipeline segments are mapped within the Study Area totaling approximately 34.9 miles of documented pipeline. There are 11 segments of crude oil pipeline totaling approximately 8 miles, 69 segments of natural gas pipeline totaling 23.5 miles, and 1 segment of miscellaneous oil pipeline totaling approximately 3.4 miles. All operational segments are classified as gathering pipelines (TRC 2023). 4.3 Soils The National Technical Committee for Hydric Soils defines hydric soils as "a soil that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part." The major and minor components of a soil map unit are classified as to how likely they are to be hydric and are rated on a range from hydric to nonhydric. According to the NRCS Soil Survey for Weld County, there are three mapped soil series present within the Study Area (Figure 2 (Appendix A)). All soil map units within the Study Area are classified with a hydric rating of zero (0). Table 2. Soils Identified within the Study Area Map Unit Symbol Soil Type Drainage Class Hydric Soil Rating (percent) Percent of Study Area 69 Valent sand, 0 to 3 percent slopes Excessively Drained 0 34.9 70 Valent sand, 3 to 9 percent slopes Excessively Drained 0 63.7 72 Vona loamy sand, 0 to 3 percent slopes Well Drained 0 1.4 Source: USDA NRCS 2023.Wetlands 4.4 Wetlands and Waterbodies 4.4.1 Desktop Analysis The NWI and NHD public resource data sets depict one stream in the northeast corner of the Study Area and two wetlands in the southeast section of the Study Area. Based on current and historic imagery the wetlands may be associated with current and/or historic impoundments used for cattle operations (Google Earth Pro 2023). See Figure 3 (Appendix A) for NHD and NWI mapped waters. Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report 5 Ni TRC 4.4.2 Wetlands Based on field observations, no wetlands were identified within the Study Area. NWI-mapped wetland locations were investigated and determined to lack one of more of the three criteria necessary that define a wetland. Although hydrophytic vegetation (saltgrass [Distichlis spicata]) was present, hydric soil indicators were absent and hydrologic indicators were marginal at best. In addition, the NWI-mapped wetland locations occur in uplands adjacent to a remnant unlined stock pond historically and artificially fed by a well pump powered by solar panels. The pumped water required to fill the cattle pond is no longer necessary as cattle operations have ceased in the Study Area. See Figure 4 (Appendix A) and Appendix B for representative photographs and photo point locations. 4.4.3 Waterbodies One 0.38 -acre manmade stock pond (S-AJL-1) was delineated along a OHWM consisting of a defined bank situated above mud cracks. The stock pond contained no water at the time of survey and contained one inlet structure from a solar powered well pump and no outlet structures. Vegetation was mostly absent except for intermittent patches of saltgrass and kochia (Bassia scoparia) along and above the OHWM bench. See Figure 4 (Appendix A) for mapped features. Representative photos of the stock pond are presented in Appendix B. The NHD-mapped stream located in the northeast section of the Study Area was further investigated. OHWM indicators were absent and there was no indication of a water course in the vicinity of the NHD-mapped feature. See Figure 4 (Appendix A) and Appendix B for representative photographs and photo point locations. 5.0 Conclusions and Recommendations A wetland and waterbody delineation survey was conducted within CSC's proposed Kersey Mine Study Area on October 16 and 20, 2023. This region of Weld County was determined to be within its normal precipitation range for the three months leading up to the survey. Based on field observations, no wetlands and one waterbody were identified within the Study Area. The one 0.38 -acre waterbody (S-AJL-1), a former cattle pond, was not observed to have downstream connectivity to federally jurisdictional waterbodies. As none of the features were observed to have downstream connectivity to jurisdictional waters, the Project is not anticipated to be subject to regulation pursuant to Section 404 of the CWA. The ultimate authority to determine federal wetland and waterway boundaries and jurisdiction rests with the USACE Omaha District (Denver Office). Decisions made by the USACE may result in modifications to the conclusions stated in this report. Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report 6 h) TRC 6.0 References Chapman, S.S., Griffith, G.E., Omernik, J.M., Price, A.B., Freeouf, J., and Schrupp, D.L. 2006. Ecoregions of Colorado: Reston, Virginia. U.S. Geological Survey (map SAN scale 1:1,200,000). Cowardin, L. M., V. Carter, F. C. Golet, and E. T. LaRoe. 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish and Wildlife Service. FWS/OBS-79/31. Washington, DC. ESRI. 2018. USGS EROS Archive - Aerial Photography - National Agriculture Imagery Program (NAIP). Accessed October 2023, from: https://www.usgs.gov/centers/eros/science/usgs- eros-archive-aerial-photoqraphy-national-agriculture-imagery-proqram-naip Google Earth Pro. 2023. Google Earth Pro historic aerial imagery of 40°24'44.66" N, 104°24'45.25" W. Accessed October 2023. Lichvar, Robert W. and S. M. McColley. 2008. A Field Guide to the Identification of the Ordinary High Water Mark (OHWM) in the Arid West Region of the Western United States. Prepared for the U.S. Army Corps of Engineers Wetland Regulatory Assistance Program. August 2008. National Oceanic and Atmospheric Administration (NOAA). 2023. AgACIS for Weld County. Accessed October 2023, from: http://agacis.rcc-acis.org/?fips=49007 TRC Environmental Corporation (TRC). 2023. Critical Issues Analysis for the Kersey Mine. Prepared for Colorado Sand Company LLC, November 2023. U.S. Army Corps of Engineers (USACE). 1987. Corps of Engineers Wetlands Delineation Manual. U.S. Army Corps of Engineers, Waterways Experiment Station, Wetlands Research Program, Technical Report Y-87-1. Vicksburg, MS. January 1987 - Final Report. 92 pp.+ app. U.S. Army Corps of Engineers (USACE). 1991a. "Questions & Answers on the 1987 Manual," Memorandum from John F. Studt. October 7, 1991. U.S. Army Corps of Engineers (USACE). 1991b. "Implementation of the 1987 Corps Wetland Delineation Manual," Memorandum from John P. Elmore. August 27, 1991. U.S. Army Corps of Engineers (USACE). 1992. "Clarification and Interpretation of the 1987 Manual," Memorandum from Major General Arthur E. Williams. March 6, 1992. U.S. Army Corps of Engineers (USACE). 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Great Plains Region. Version 2.0, ed. J. S. Wakeley, R. W. Lichvar, and C. V. Noble. ERDC/EL TR-10-1. Vicksburg, MS: U.S. Army Engineer Research and Development Center. U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS). 2023. Web Soil Survey. Accessed October 2023, from: https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report 7 'i TIR C U.S. Fish and Wildlife Service (USFWS). 2023. National Wetlands Inventory— Wetlands Mapper. Accessed October 2023, from: https://www.fws.gov/wetlands/data/mapper.html U.S. Geological Survey (USGS). 2023a. National Hydrography Dataset (NHD). Accessed October 2023, from: https://www.usgs.gov/core-science-systems/nqp/national- hydrography/ U.S. Geological Survey (USGS). 2023b. Barnesville, CO [map]. 1:24,000, Topographic Quadrangle Map, Reston VA. Colorado Sand Company LLC — Kersey Mine November 20, 2023 Wetland and Waterbody Delineation Report 8 Appendix A: Figures a wags ate• ° .YPdln Caw amp . �. .`. V {� \, \ \_ k c .... t• _ . • •..tf, w' . •H..�irri.rf ..... t'• h �..r _rwrw..a •.• Y7.s •! L' , s�•:�[ 1 e \ i\ ♦� .... \ (...) ___ / - .,... Q J l •'� I •6'41 I 1 •� ✓✓✓ Ai ! 404 +�t r. 11 %---- ' �. ,� % '' `- W p.. 4, 1 a —. 12 +6:8 _ 1 • - .•4 ,, �- . ' .+ . _,I • , ' �, �. I. ' -l� '.�' �r, .�'1 wa l! p v © S . _ 1 11:'1,- . _� '+fir"�°t�.� I i5 - - — —'° ,.,, , 5'‘) ft t) _ 111. STUDY AREA BASE MAP: USES TOP() MAP QUAD: BARNESVILLE DATA SOURCES: TRC 0 1,250 2,500 FEET 1:30,000 1" = 200' WY NM NE PROJECT: COLORADO SAND COMPANY, KERSEY MINE WELD COUNTY, COLORADO T[TLE: STUDY AREA LOCATION DRAWN BY: A. CLINE PR0J.NO.: 535891 CHECKED BY: B- TRACY APPROVED BY: A. LAARTZ DATE: NOVEMBER 2023 FIGURE 1 h4 TR C 1528 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 89401 PHONE: 303.792-5555 FILE COLORADO SAND CO PROPOSAL . "Ri.," .!,ac S . Map unit symbol Map unit name Rating Hydric Rating % Acres in AOI Percent of AOI - 69 Valent sand, D to 3 percent slopes Excessively drained D 1,4D4.50 34..90°I°• 70 Valent sand, 3 to 9 percent slopes Excessively drained D 2,560.8D 63.70°I° 72 Vona loamy sand, 0 to 3 percent slopes Well drained D 57.6 1.4D °!° `\ 1 1,. 72 7z �, �g 69 7a jp 69 . 69 70 7a 69 7D 7a 7a _ STUDY AREA 0 1,250 2,500 PROJECT: COLORADO SAND COMPANY, KER5EY MINE WELD COUNTY, COLORADO Q SOIL TYPES 69 - VALENT SAND, D TO 3 PERCENT SLOPES 70 -VALENT SAND, 3 TO 9 PERCENT SLOPES 72 - VONA LOAMY SAND, D TO 3 PERCENT SLOPES BASE MAP: ESRI "WORLD IMAGERY" BASEMRP DATA SOURCES: TRC, NRCS WEB SOIL SURVEY TaLE: MRCS SOIL MAP UNITS FEET 1:36.000 1" = 2;560' Greeley ❑ D DRAWN BY: A CLINE PROD No. 535881 CHECKED BY- B.. TRACY APPROVED BY: A. LAARTZ FIGURE 2 DATE NOVEMBER 2023 I) 1526 OULEVARD BUILDING COLE 3 SUITE 154 TR CLOOD, CO 80401 PN H 792 5555 FILE COLORADO 5AND CO PROPOSAL DAM PRO=L.T COLORADO SAND COMPANY, KERSEY MINE WELD COUNTY, COLORADO STUDY AREA NHD STREAM/RIVER LAKE/POND NWI WETLANDS RIPARIAN BASE MAP: ESRI "WORLD IMAGERY" BASEMAP DATA SOURCES: TRC, NHD, NWI, FEMA aO4%* 0 1,250 2,500 FEET 1:30000 1" = 2 500' Greeley J TRLE: NHD & NWI WATERS DRAWN BY: A. CLINE 535891 CHECKED BY: B. TRACY APPROVED BY: A. LAARTZ DATE NOVEMBER 202 FIGURE 3 ti TR C 1526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 W LE. COLORADO SAND CO PROPOSAL PROJECT: COLORADO SAND COMPANY, KERSEY MINE WELD COUNTY, COLORADO STUDY AREA 4 NHD/NWI PHOTO POINTS POND BASE MAP: ESRI "WORLD IMAGERY" BASEMAP DATA SOURCES: TRC, NHD 0 1,259 2,500 FEET 1:30,000 1" = 2,500' TALE: WETLAND AND WATERBODY SURVEY RESULTS Greeley ❑ DRAWN BY: A. CLINE PROJ.NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: A.LAART2 DATE. NOVEMBER 2023 FIGURE 4 �i TIRC 1526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE. COLORADO SAND co PROPOSAL Appendix B: Photographs Kersey Mine Project Photographs October 2023 romMINMI=IIIIIIIIMIMMIME Photo 1. NHD stream not present. Ordinary high water mark (OHWM) indicators are absent. View facing Northwest from the Project Boundary. ,,1.6 Photo 3. NWI wetland not present. Area is lacking hydrology and hydric soils indicators. View facing North. Photo 5. Stock pond (S-AJL-1). View facing North. Photo 2. NHD stream not present. OHWM indicators are absent. View facing Southeast toward the Project Boundary. Photo 4. NWI wetland not present. Area is lacking hydric soil indicators. View facing North. Photo 6. Stock pond (S-AJL-1). View facing South. Exhibit G Page 12 EXHIBIT G-4 WETLAND DETERMINATION DATA FORMS Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Project/Site: Kersey Mine Applicant/Owner: Confidential Client WETLAND DETERMINATION DATA FORM — Great Plains Region City/County: Kersey, Weld County Sampling Date: 2023-10-20 Investigator(s): Amy Laartz, Mason Powers Landform (hillslope, terrace, etc): Depression Subregion (LRR): Soil Map Unit Name: Are climatic / hydrologic conditions on the site typical for this time of year? Yes X No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes X No State: CO Sampling Point: W-AL-01_PEM-1 Section, Township, Range: S14 T5N R63W Local relief (concave, convex, none): Concave Slope (%): 0 to 1 Lat: 40.4063941147 Long: -104.401063159 Datum: WGS84 NWI Classification: Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes X No Hydric Soil Present? Yes No X Wetland Hydrology Present? Yes No X Is the Sampled Area within a Wetland? Yes No X Remarks: Covertype is PEM. VEGETATION — Use scientific names of plants. Tree Stratum (Plot size: 30 ft radius ) Absolute Dominant Indicator % Cover Species? Status Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC: 1 (A) 1 2. Total Number of Dominant Species Across All Strata: 1 (B) 3 4. Percent of Dominant Species That Are OBL, FACW, or FAC: 100% (A/B) Sapling/Shrub Stratum (Plot size: 15 ft radius ) 0 = Total Cover 1. Prevalence Index worksheet: Total % Cover of: Multiply by: 2. 3. OBL species 0 x 1 = 0 4. FACW species 60 x 2 = 120 5 FAC species 0 x 3= 0 Herb Stratum (Plot size: 5 ft radius ) 0 = Total Cover Yes FACW FACU species 10 x 4 = 40 60 1. Distichlis spicata UPL species 0 x 5 = 0 2. Bassia scoparia 10 No FACU Column Totals: 70 (A) 160 (B) 3. Prevalence Index = B/A = 2.3 4. 5. Hydrophytic Vegetation Indicators: X 1 - Rapid Test for Hydrophytic Vegetation X 2 - Dominance Test is >50% 3 - Prevalence Index is 5.3.01 _ 4 - Morphological Adaptations) (Provide supporting data in Remarks or on a separate sheet) Problematic Hydrophytic Vegetationl (Explain) — llndicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 6. 7 8 9. 10. Woody Vine Stratum (Plot size: 30 ft radius ) 70 = Total Cover 1. 2, % Bare Ground in Herb Stratum 0 = Total Cover Hydrophytic Vegetation Present? Yes X No Remarks: No vegetation comments. US Army Corps of Engineers 8de1c915-1fa7-46e4-9d30-d171a8aa0aeb W-AL-01_PEM-1 Page 1 of 4 11/2/2023, 8:16:30 PM UTC Great Plains Region — Version 2.0 (Adapted by TRC) SOIL Profile Description: (Describe to the depth needed to document the indicator or confirm the Matrix Redox Features absence of indicators.) Remarks Depth (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture 0 to 10 10YR 4/2 100 Loam 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: _ Histosol (A1) _ Sandy Gleyed Matrix (S4) _ 1 cm Muck (A9) (LRR I, J) _ Histic Epipedon (A2) _ Sandy Redox (S5) _ Coast Prairie Redox (A16) (LRR F, G, H) _ Black Histic (A3) _ Stripped Matrix (S6) _ Dark Surface (S7) (LRR G) _ Hydrogen Sulfide (A4) _ Loamy Mucky Mineral (F1) _ High Plains Depressions (F16) _ Stratified Layers (A5) (LRR F) _ Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73) _ 1 cm Muck (A9) (LRR F, G, H) _ Depleted Matrix (F3) _ Reduced Vertic (F18) _ Depleted Below Dark Surface (A11) _ Redox Dark Surface (F6) _ Red Parent Material (TF2) _ Thick Dark Surface (Al2) _ Depleted Dark Surface (F7) _ Very Shallow Dark Surface (TF12) _ Sandy Mucky Mineral (S1) _ Redox Depressions (F8) _ Other (Explain in Remarks) 2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) _ _ 5 cm Muck Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) 3lndicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Hydric Soil Present? Yes No X Depth (inches): Remarks: No soil comments. Sampling Point: W-AL-01_PEM-1 HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one is required; check all that apply) Secondary Indicators (minimum of two required) _ Surface Water (A1) _ Salt Crust (B11) _ Surface Soil Cracks (B6) _ High Water Table (A2) _ Aquatic Invertebrates (B13) _ Sparsely Vegetated Concave Surface (B8) _ Saturation (A3) _ _ Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) _ Water Marks (B1) _ Dry -Season Water Table (C2) _ Oxidized Rhizospheres on Living Roots (C3) _ Sediment Deposits (B2) _ Oxidized Rhizospheres along Living Roots (C3) (where tilled) _ Drift Deposits (B3) (where not tilled) _ Crayfish Burrows (C8) _ Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) _ Saturation Visible on Aerial Imagery (C9) Iron Deposits (B5) Thin Muck Surface (C7) _ Geomorphic Position (D2) _ _ _ Inundation Visible on Aerial Imagery (B7) _ Other (Explain in Remarks) X FAC-Neutral Test (D5) Water -Stained Leaves (B9) _ Frost -Heave Hummocks (D7) (LRR F) Field Observations: Surface Water Present? Yes No X Depth (inches): Wetland Hydrology Present? Yes No X Water Table Present? Yes No X Depth (inches): Saturation Present? Yes No X Depth (inches): (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Former artificially fed stock pond was the subsurface water source. Water source has been turned off.. US Army Corps of Engineers 8de1c915-1fa7-46e4-9d30-d171a8aa0aeb W-AL-01_PEM-1 Page 2 of 4 11/2/2023, 8:16:30 PM UTC Great Plains Region — Version 2.0 (Adapted by TRC) SAMPLE PLOT PHOTOS US Army Corps of Engineers 8de1c915-1fa7-46e4-9d30-d171a8aa0aeb W-AL-01_PEM-1 Page 3of4 11/2/2023, 8:16:30 PM UTC Great Plains Region — Version 2.0 (Adapted by TRC) US Army Corps of Engineers 8de1c915-1fa7-46e4-9d30-d171a8aa0aeb W-AL-01_PEM-1 Page 4of4 11/2/2023, 8:16:30 PM UTC Great Plains Region — Version 2.0 (Adapted by TRC) Project/Site: Kersey Mine Applicant/Owner: CSC Confidential Client WETLAND DETERMINATION DATA FORM — Great Plains Region City/County: - Investigator(s): Amy Laartz, Mason Powers Landform (hillslope, terrace, etc): Depression Subregion (LRR): Soil Map Unit Name: Are climatic / hydrologic conditions on the site typical for this time of year? Yes X No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes X No Sampling Date: 2023-10-20 State: -- Sampling Point: W-AL-02_PEM-1 Section, Township, Range: S14 T5N R63W Local relief (concave, convex, none): Concave Slope (%): 1 to 3 Lat: 40.4055773232 Long: -104.401332542 Datum: WGS84 NWI Classification: Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes X No Hydric Soil Present? Yes No X Wetland Hydrology Present? Yes X No Is the Sampled Area within a Wetland? Yes No X Remarks: Covertype is PEM. Sample plot is located on the fringe of a dried up retired stock pond. Water source has been shut off. VEGETATION — Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: 30 ft radius ) % Cover Species? Status Dominance Test worksheet: Number of Dominant Species 1 That Are OBL, FACW, or FAC: 1 (A) 2. Total Number of Dominant 3 Species Across All Strata: 1 (B) 4. Percent of Dominant Species 0 = Total Cover That Are OBL, FACW, or FAC: 100% (A/B) Sapling/Shrub Stratum (Plot size: 15 ft radius ) 1. Prevalence Index worksheet: 2. Total % Cover of: Multiply by: 3. OBL species 0 x 1 = 0 4. FACW species 55 x 2 = 110 5 FAC species 0 x 3= 0 0 = Total Cover Herb Stratum (Plot size: 5 ft radius ) FACU species 10 x 4 = 40 1. Distichlis spicata 55 Yes FACW UPL species 0 x 5 = 0 2. Bassia scoparia 10 No FACU Column Totals: 65 (A) 150 (B) 3. 4. Prevalence Index = B/A = 2.3 5. Hydrophytic Vegetation Indicators: 6. X 1 - Rapid Test for Hydrophytic Vegetation 7 $ X 2 - Dominance Test is >50% 9. 3 - Prevalence Index is 5.3.01 10. _ 4 - Morphological Adaptations) (Provide supporting data in Remarks or on a separate sheet) 65 = Total Cover Woody Vine Stratum (Plot size: 30 ft radius ) Problematic Hydrophytic Vegetationl (Explain) 1. — 2, llndicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 0 = Total Cover % Bare Ground in Herb Stratum 35 Hydrophytic Vegetation Present? Yes X No Remarks: 35% Bare ground, saltgrass alone is not a strong indicator of wetlands.. US Army Corps of Engineers 123d3519-1273-4f91-b707-290d6fdbab0c W-AL-02_PEM-1 Page 1 of 4 11/2/2023, 7:42:22 PM UTC Great Plains Region — Version 2.0 (Adapted by TRC) SOIL Profile Description: (Describe to the depth needed to document the indicator or confirm the Matrix Redox Features absence of indicators.) Remarks Depth (inches) Color (moist) % Color (moist) % Type1 Loc2 Texture 0 to 7 10YR 4/2 100 Loam 7 to 10 10YR 4/1 100 Loam 10 to 12 2.5Y 4/1 100 Loam 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: _ Histosol (A1) _ Sandy Gleyed Matrix (S4) _ 1 cm Muck (A9) (LRR I, J) _ Histic Epipedon (A2) _ Sandy Redox (S5) _ Coast Prairie Redox (A16) (LRR F, G, H) _ Black Histic (A3) _ Stripped Matrix (S6) _ Dark Surface (S7) (LRR G) Hydrogen Sulfide (A4) _ Loamy Mucky Mineral (F1) _ High Plains Depressions (F16) _ Stratified Layers (A5) (LRR F) _ Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73) _ 1 cm Muck (A9) (LRR F, G, H) _ Depleted Matrix (F3) _ Reduced Vertic (F18) _ Depleted Below Dark Surface (A11) _ Redox Dark Surface (F6) _ Red Parent Material (TF2) _ Thick Dark Surface (Al2) _ Depleted Dark Surface (F7) _ Very Shallow Dark Surface (TF12) _ Sandy Mucky Mineral (S1) _ Redox Depressions (F8) _ Other (Explain in Remarks) _ 2.5 cm Mucky Peat or Peat (S2) (LRR G, H) _ High Plains Depressions (F16) 5 cm Muck Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) 3lndicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Hydric Soil Present? Yes No X Depth (inches): Remarks: No soil comments. Sampling Point: W-AL-02_PEM-1 HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one is required; check all that apply) Secondary Indicators (minimum of two required) _ Surface Water (A1) _ Salt Crust (B11) _ Surface Soil Cracks (B6) _ High Water Table (A2) _ Aquatic Invertebrates (B13) _ Sparsely Vegetated Concave Surface (B8) Saturation (A3) _ Hydrogen Sulfide Odor (C1) _ Drainage Patterns (B10) X Water Marks (B1) _ Dry -Season Water Table (C2) _ Oxidized Rhizospheres on Living Roots (C3) _ Sediment Deposits (B2) _ Oxidized Rhizospheres along Living Roots (C3) (where tilled) _ Drift Deposits (B3) (where not tilled) _ Crayfish Burrows (C8) Algal Mat or Crust (64) _ Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9) _ _ _ Iron Deposits (B5) _ Thin Muck Surface (C7) _ Geomorphic Position (D2) _ Inundation Visible on Aerial Imagery (B7) _ Other (Explain in Remarks) X FAC-Neutral Test (D5) Water -Stained Leaves (B9) Frost -Heave Hummocks (D7) (LRR F) Field Observations: Surface Water Present? Yes No X Depth (inches): Wetland Hydrology Present? Yes is No Water Table Present? Yes No X Depth (inches): Saturation Present? Yes No X Depth (inches): (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Fringe of former stock pond fed by a well. Water source is turned off.. US Army Corps of Engineers 123d3519-1273-4f91-b707-290d6fdbabOc W-AL-02_PEM-1 Page 2of4 11/2/2023, 7:42:22 PM UTC Great Plains Region — Version 2.0 (Adapted by TRC) SAMPLE PLOT PHOTOS US Army Corps of Engineers 123d3519-1273-4f91-b707-290d6fdbab0c W-AL-02_PEM-1 Page 3of4 11/2/2023, 7:42:22 PM UTC Great Plains Region — Version 2.0 (Adapted by TRC) US Army Corps of Engineers 123d3519-1273-4f91-b707-290d6fdbab0c W-AL-02_PEM-1 Page 4 of 4 11/2/2023, 7:42:22 PM UTC Great Plains Region — Version 2.0 (Adapted by TRC) Exhibit H Page 1 EXHIBIT H WILDLIFE INFORMATION Per Rule 6.4.8 -- Wildlife Information: (1) In developing the wildlife information, the Operator/Applicant may wish to contact the local wildlife conservation officer. The Operator/Applicant shall include in this Exhibit a description of the game and non game resources on and in the vicinity of the application area, including: (a) a description of the significant wildlife resources on the affected land; (b) seasonal use of the area; (c) the presence and estimated population of threatened or endangered species from either federal or state lists; and, (d) a description of the general effect during and after the proposed operation on the existing wildlife of the area, including, but not limited to, temporary and permanent loss of food and habitat, interference with migratory routes, and the general effect on the wildlife from increased human activity, including noise; and, (2) the application may be reviewed and commented upon by the State of Colorado Division of Parks and Wildlife (CDP). If the CDPW has comments, they must be provided prior to the end of the public comment period specified in Sub -section 1.7.1(2)(a) to be considered by the Board and Office. (a) Provide a description of the significant wildlife resources on the affected land. The Permit Area and surrounding areas were reviewed for the potential occurrence of sensitive wildlife species, including federal or state -listed species, and High Priority Habitat (HPH) for wildlife species, to identify wildlife resources and document habitat within the immediate Permit Area. The assessment included both a "desktop review" and subsequent field investigation. Findings from these investigations are summarized in the attached Exhibit H-1: Habitat Assessment Report and Exhibit H-2: Significant Wildlife Resources. Sensitive wildlife species considered in the review included: (a) those listed by the U.S. Fish and Wildlife Service (USFWS) as threatened, endangered, proposed, or candidate species; (b) those listed by the State of Colorado as threatened, endangered, or species of special concern; and (c) migratory birds. Species activity data from Colorado Parks and Wildlife (CPW) was also reviewed as part of the assessment. CPW HPH was also assessed in relation to the Permit Area. CPW HPH includes habitat areas where measures to avoid, minimize, and mitigate adverse impacts on wildlife have been identified to protect breeding, nesting, foraging, migrating, or other uses by wildlife. No HPH is located within the Permit Area. The Permit Area and its surroundings can best be described as a grassland habitat, with relatively flat to gently rolling topography. Vegetation is composed of short -grass or mixed -grass prairie species, scrub, and some sagebrush steppe. No wetlands were identified within the Permit Area. One waterbody (stock pond), reported to be dry during the October 2023 wetland and waterbody surveys, was identified in the Permit Area; however, this feature was not observed to have downstream connectivity to jurisdictional waters. Vegetation was mostly absent from the identified feature except for intermittent patches of saltgrass and kochia (Bassia scoparia) along and above the ordinary high-water mark bench. More detailed information about vegetation within the Permit Area is summarized in Exhibit G: Water Information and Exhibit J: Vegetation Information. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit H Page 2 Elevations within the Permit Area range from approximately 4,600 ft. above mean sea level (amsl) to 4,790 ft. amsl. The average annual precipitation is 14.67 inches. In general, the Permit Area (and surrounding area) exhibits a relatively homogeneous landscape. Federal Species Based on the USFWS Information for Planning and Consultation (IPaC) Trust Resources Report (Project Code: 2023-0135698; Exhibit H-3), a total of ten federally listed or candidate species were identified as potentially occurring within the Permit Area or potentially affected as a result of the Mine: • gray wolf (federally endangered [FE]) • whooping crane (FE) • Preble's meadow jumping mouse (federal threatened [FT]) • pallid sturgeon (FE) • tricolored bat (proposed FE) • monarch butterfly (federal candidate [FC]) • eastern black rail (FT) • Ute ladies' -tresses (FT) • piping plover (FT) • western prairie fringed orchid (FT) The desktop review and field assessment concluded that, based on the known range and the presence/absence of potentially suitable habitat, the only federally listed or candidate species potentially occurring, although unlikely, in the Permit Area is the monarch butterfly. The Monarch butterfly's obligate host species, milkweed was not observed at the time of the survey, but individual plants could have been missed due to the timing of the surveys outside of the flowering period. The Permit Area lacks food, water, and roosting sources for the tricolored bat. Existing oil and gas structures or road culverts adjacent to the Permit Area may provide suitable tricolored bat roosting habitat, however, roosting habitat will not be removed as a result of Kersey Mine implementation and all disturbance will remain 100 feet from the existing oil and gas structures. Food and water sources (agricultural reservoirs and wetlands and waterbodies associated with the South Platte River) for tricolored bats are located within two miles of the Permit Area; therefore, there is potential for this species to occur as a transient while foraging through the Permit Area. Potential presence for the pallid sturgeon, piping plover, and western prairie fringed orchid does not exist within the Permit Area; however, impacts to these species are considered if water -related activities or use would result in depletions from the North Platte, South Platte, or Laramie River basins. It is not anticipated that mine water use would impact potential habitat downstream in the Platte River drainage. The Kersey Mine process water source has yet to be identified. Consultation with the State Engineer's office will identify any potential impacts on groundwater (and surface water) resources. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit H Page 3 State Species A total of six State -listed or special concern species were identified as potentially occurring within the Permit Area or potentially affected as a result of Kersey Mine implementation: • black -footed ferret (state endangered [SE]) • mountain plover (SC) • plains pocket gopher (state species of special concern [SC]) • ferruginous hawk (SC) • long -billed curlew (SC) • Western burrowing owl (state threatened [ST]) The desktop review and field assessment (Exhibit H-1) concluded that, based on the known range and the presence/absence of potentially suitable habitat, the potential for occurrence for these species exists within the Permit Area. Five active black -tailed prairie dog colonies, which provide habitat for black -footed ferrets and western burrowing owl, were recorded within and adjacent to the Permit Area. However, prairie dog colonies recorded during the field effort are not present in areas of black footed ferret reintroductions. Additionally, the prairie dog colonies observed are small in size and fragmented throughout the Permit Area and, therefore, are not ideal for potential future reintroductions of the black -footed ferret. Burrowing owls were observed within two of the prairie dog colonies during the field survey, including one at a nest site. CSC submitted a letter to the CPW District Area Wildlife Manager regarding species of concern in the Permit Area to obtain additional information. Based on coordination with CPW on previous projects, CPW will provide comments once CPW receives the Use by Special Review notice from the Weld County Planning Department. The state -listed western burrowing owl occurs within the Permit Area (Exhibit H-1 and H-2). Other state -listed or species of special concern considered likely or possible to occur in the Permit Area include the long -billed curlew, mountain plover, ferruginous hawk, and plains pocket gopher, respectively. No known occurrences of the long - billed curlew, mountain plover, ferruginous hawk or plains pocket gopher within the Permit Area were identified during the desktop review or the field investigation. Migratory Birds As discussed above, one burrowing owl nest was identified within the Permit Area. Other migratory bird species observed in the Permit Area include northern harriers, a red-tailed hawk, and a number of common songbird species. Due to the potential for occurrence or known occurrences of these species, CSC will consult with USFWS and CPW to determine if and to what extent avoidance, minimization, or mitigation measures, if any, may be warranted. (b) Provide a description of seasonal use of the area. The Permit Area is located within privately owned property currently utilized for rangeland and oil & gas production. Virtually all portions of the Permit Area continue to be subject to year-round use by oil and gas - producing entities, pipeline service companies, and other utilities, as required. The Mine Plan has been developed in a manner that facilitates/accommodates simultaneous and ongoing oil and gas production, as well as appropriate consideration of existing and/or abandoned oil and gas features. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit H Page 4 With specific consideration to seasonal use by wildlife, it is again noted that the majority of the Permit Area is grassland habitat with vegetation composed of short -grass or mixed -grass prairie species, scrub, and some sagebrush steppe. The Permit Area is dissected by oil and gas wells and associated infrastructure, including gravel access roads. Table H-1: Permit Area - Seasonal Use by Wildlife lists these game and non -game resources along with a brief description of the seasonal use of the Permit Area by each species. A field survey was conducted to assess the potential for special status species and their associated habitat to occur within the Permit Area (Exhibit H-1). During the field investigation, five active black -tailed prairie dog colonies were documented. Burrowing owls were observed within two of the prairie dog colonies within and adjacent to the Permit Area during the field survey. One active burrowing owl nest was identified within the Permit Area (Exhibit H-2). Additional raptor species observed during the survey included one red-tailed hawk perched within the Permit Area and multiple northern harrier individuals flying through the Permit Area. Of the ten federally listed or candidate species, the monarch butterfly and tricolored bat have the potential to occur within the Permit Area. In addition to the burrowing owl, suitable habitat was observed for the mountain plover, long -billed curlew, and the plains pocket gopher during the field survey. Two songbird species were seen throughout the Permit Area: horned larks and western meadowlarks. Incidental mammal observations included black -tailed prairie dogs, pronghorn, cottontail rabbits, and coyote (scat observed). Several prairie rattlesnakes and an ornate box turtle were observed while surveying and recording prairie dog colonies. In addition, the Habitat Assessment Report (Exhibit H-1) identified several sensitive bird, mammal, and insect species that have the potential to occur within the Permit Area. TABLE H-1: PERMIT AREA - SEASONAL USE BY WILDLIFE Species Seasonal Use of Permit Area Non -game Birds Burrowing Owl (Athene cunicularia) Hunting: March —October Breeding/Nesting: March —August Migration: May use as a stopover area during migration in spring and late fall/early winter Mountain Plover (Charadrius montanus) Hunting: March —September Breeding/Nesting: March —June Migration: May use as a stopover area during migration in spring and fall Raptors (eagles, falcons, hawks, vultures, harriers, osprey) Hunting: Year-round Breeding/Nesting: December —July Nesting: Suitable nesting trees are absent from the Permit Area but oil and gas infrastructure may provide suitable nest locations. Additionally, suitable habitat for ground -nesting species is found within the Permit Area. Perching: Fence posts and utility poles provide perching areas Songbirds Feeding: Year-round Breeding/Nesting: Suitable nesting habitat largely absent from the Permit Area, with the exception of the grove of Russian olive trees in the southeast corner of Section 12 Migration: May use as a stopover area during migration times Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit H Page 5 Species Seasonal Use of Permit Area Game Birds Pheasant, Dove Feeding: Year-round Breeding/Nesting: Suitable nesting habitat for pheasant is largely absent from the Permit Area, but suitable mourning dove habitat is present within the Permit Area. Waterfowl (ducks, geese) Feeding: Year-round, seasonally Breeding/Nesting: Suitable nesting habitat for waterfowl is not found within the Permit Area. Migration: Suitable stopover area during migration in spring and fall is largely absent from the Permit Area. The waterbody identified within the Permit Area could be utilized by waterfowl migrating through the region. Non -game Mammals Black -tailed Prairie Dog (Cynomys ludovianus) Feeding: Year-round Breeding: February- July (Four active prairie dog burrows were observed within the Permit Area) Plains Pocket Gopher (Geomys bursarius) Feeding: Year-round Breeding: Early spring. Small Mammals Feeding: Year-round Breeding: Spring Game Mammals Deer (mule, white-tailed) Feeding: Year-round Breeding: Fall Rearing: Suitable habitat is located within the Permit Area. Range: The Permit Area falls within the overall range for mule deer and white-tailed deer. Pronghorn (Antilocapra americana) Feeding: Year-round Breeding: Fall Rearing: Suitable habitat is located within the Permit Area. Range: The Permit Area falls within the overall range for pronghorn and winter range. Coyotes, Foxes Feeding: Year-round Breeding: Fall Rearing: Suitable habitat is located within the Permit Area. Reptiles/Amphibians Snakes, lizards, turtles. Feeding: Year-round Breeding: Spring —Fall Fish Warmwater and cold -water fisheries Range: Suitable habitat is not found within the Permit Area Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit H Page 6 ('C) Identify the presence and estimated population of threatened or endangered species from either federal or state lists. Refer to Item (a) above for discussion relative to threatened or endangered species from either federal or state lists. (d) Provide a description of the general effect during and after the proposed operation on the existing wildlife of the area, including, but not limited to, temporary and permanent loss of food and habitat, interference with migratory routes, and the general effect on the wildlife from increased human activity, including noise. Impacts on local wildlife during construction and regular operations within the Permit Area will vary by degree depending on species and seasonal timing. Species that utilize the Permit Area year-round or for breeding/nesting will be impacted more than species that may only use the Permit Area for foraging or short-term use, as a stopover point during migration. Likewise, some more adaptable species may tolerate disturbances better than more sensitive species. Certain species may temporarily avoid the Permit Area and/or adjacent lands during construction and regular operations due to noise, illuminated areas, or anthropogenic activity. Habitat loss or alteration also would result in the direct loss of smaller, less mobile species of wildlife (e.g., small mammals and reptiles) and the displacement of more mobile species into adjacent habitats. Of greatest concern for biological resources within the region is the loss or alternation of associated suitable breeding habitat for migratory bird species and species associated with prairie dog colonies and other mammal burrows. Burrowing owls, which are State -listed as threatened, are known to use the Permit Area. Potential direct impacts on breeding burrowing owls as a result of mine -related activities could include abandonment of a breeding territory or nest site or the potential loss of eggs or young, which would reduce productivity for that breeding season, if present. Habitat available for wildlife, including special status species, within the Permit Area is currently impacted by existing oil and gas construction and operation. While the projected life -of -mine for the Kersey Mine is on the order of twenty (20) years, inclusive of pre -development, production, and closure and reclamation activities, it can be considered a "temporary" use of the land. Further to this, the mining operations will employ a progressive pit with concurrent reclamation; that is, the active mine pit will advance across the Permit Area with concurrent reclamation (revegetation) occurring immediately following the completion of mining within a given year's mine block. After the regular operations cease and the land is reclaimed, species use of the Permit Area will likely return to its pre - mining state. Accordingly, the duration of loss of food and/or habitat will effectively be decreased to a period of time significantly less than the full projected life -of -mine; and, in such a manner that revegetation (and habitat restoration) will be occurring on a continuing basis, utilizing native habitat grasses and forbs to re-establish habitat to the post -mining designated land use. CSC plans to coordinate with USFWS and CPW on the field survey results (Exhibit H-1) and to develop applicable avoidance and minimization measures to reduce impacts on significant wildlife resources. To reduce impacts on nesting birds and ensure compliance with the Migratory Bird Treaty Act, CPW recommends implementing avoidance measures such as performing land clearing/disturbance and existing facilities demolition outside the breeding season (August 1 through March 14). If land disturbance and facilities demolition will occur during the breeding season (March 15 through July 31), pre -construction surveys for nesting bitrrds should be conducted and active nest buffers and avoidance periods should be implemented. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit H Page 7 Specific to reducing impacts on nesting burrowing owls, CSC will consult with CPW to obtain recommendations regarding the minimization of impacts on these species. Current CPW recommendations include: • If future ground disturbance, facilities demolition, and human encroachment will occur within prairie dog towns between March 15 through October 31, additional pre -construction surveys should be conducted following CPW survey guidelines to determine the presence or absence of burrowing owls and their nests. Because burrowing owls may be present at a nest site up to one month prior to egg laying and several months after the young have left the nest, CPW recommends that efforts to eradicate prairie dog towns or destroy abandoned towns not occur between March 15 through October 31. • If an active nest site is found: restrict ground disturbance and human encroachment within 1/4 mile of the active nest during the nesting season (March 15 through August 31). CSC will coordinate with the USFWS and CPW to develop management recommendations, if necessary, to avoid impacts to the monarch butterfly and plains pocket gopher. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit H Page 8 EXHIBIT H-1 HABITAT ASSESSMENT REPORT Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 4,1 TIRC Special Status Species and Habitat Assessment Report May, 2024 Kersey Mine Prepared for: Colorado Sand Company LLC 2001 Kirby Drive, Suite 260 Houston, TX 77019 Prepared by: TRC 1526 Cole Boulevard, Building 3, Suite 150 Lakewood, Colorado 80401 TRC Table of Contents Acronyms and Abbreviations 1.0 INTRODUCTION 1 2.0 METHODS 2 2.1 Desktop Resource Assessment 2 2.2 Field Survey 2 3.0 RESULTS 3 3.1 Desktop Resource Assessment 3 3.2 Field Survey 7 4.0 CONCLUSIONS AND RECOMMENDATIONS 9 5.0 REFERENCES 10 Tables Table 1. Federally Listed Species Identified as Potentially Occurring in the Study Area 3 Table 2. State -Listed Species Identified as Potentially Occurring in the Study Area 6 Table 3. Observations Collected During the Field Survey Within the Colorado Sands Kersey Mine Study Area 8 Figures Figure 1. Project Area Location Figure 2. Kersey Mine Project Field Survey Results Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 TRC Acronyms and Abbreviations Notation Definition CNHP COGCC CPW CSC ESA FC FE FT GIS IPaC M BTA Project Project Area PFE SC SE ST TRC USFWS Colorado Natural Heritage Program Colorado Oil and Gas Conservation Commission Colorado Parks and Wildlife Colorado Sand Company, LLC Endangered Species Act Federal Candidate Federally Endangered Federally Threatened Geographic Information System Information for Planning and Consultation Migratory Bird Treaty Act Kersey Mine Project Area used for the purpose of this special status species and habitat assessment report located within the limits of construction for the proposed Kersey Mine Project. Proposed Federally Endangered State Special Concern State Endangered State Threatened TRC Environmental Corporation U.S. Fish and Wildlife Service Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 tir% TRC 1.0 Introduction TRC Environmental Corporation (TRC) was contracted by Colorado Sand Company LLC (CSC) to prepare this habitat assessment for special status species having the potential to occur within CSC's Kersey Mine Project (Project). The Project is a proposed surface pit industrial sand mine located on approximately 4,018 acres in Weld County, Colorado (Figure 1). The Project is located within privately owned open -range lands that have been utilized for oil and gas production. The Project is located north of County Road 388 and east of County Road 61 approximately 6.5 miles east -north-east of the Town of Kersey, Colorado (Project Area). The Project is located within public land survey system Township 5 North, Range 63 West, Sections 2, 3, 10, 11, 14, 15, and Township 6 North, Range 63 West, Section 34. Field surveys were conducted within and adjacent to the Project Area to locate the presence of special status species and associated habitat(s). Special status species include those listed as threatened or endangered, proposed for listing, or candidates for listing under the Endangered Species Act (ESA), the Migratory Bird Treaty Act (MBTA), the Bald and Golden Eagle Protection Act, as well as species listed by the State of Colorado as threatened, endangered, or special concern . Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 1 TRC 2.0 Methods 2.1 Desktop Resource Assessment Prior to fieldwork, TRC conducted a desktop resource assessment within and adjacent to the Project Area. The desktop assessment included publicly available Geographic Information System (GIS) databases and information from the U.S. Fish and Wildlife Service (USFWS), Colorado Parks and Wildlife (CPW), and Colorado Natural Heritage Program (CNHP) to identify suitable habitat and the current range for special status species within the Project Area. Sources of information included the USFWS Information for Planning and Consultation (IPaC) Trust Resources Report (Project Code: 2023-0135698) to determine the potential for federally listed threatened and endangered species and Designated Critical Habitat that may occur within and adjacent to the Project Area (USFWS 2023). In addition, TRC obtained the state-wide CPW Threatened and Endangered Species List (CPW 2023a) and utilized public GIS databases (CPW 2023b; COGCC 2023; CODEX 2023) to determine the potential for State of Colorado Threatened, Endangered, or Special Concern to occur within and adjacent to the Project Area. TRC reviewed aerial imagery, existing land use/cover data, species -specific literature, and the Colorado State Wildlife Action Plan to evaluate the known range and presence/absence of potentially suitable habitat within the Project Area (Google Earth Pro 2023; MRLC Consortium 2023; CPW 2015). Species occurrence records within a larger quad -based area were obtained from the CNHP (CNHP 2023). 2.2 Field Survey TRC's field survey was conducted on October 16 and 20, 2023. The field survey Study Area included the Project Area plus 0.25 -mile and 0.5 -mile spatial buffers recommended by CPW (2020). CPW recommends spatial buffers around a project area to determine the presence of project -adjacent raptor nests. Observations outside the Project Area were made from a vehicle using binoculars and spotting scopes where public access along existing roads was available. Within the Project Area, TRC biologists Patti Lorenz and Rose Crispin conducted a ground - based field survey that consisted of scoping the Project Area with binoculars and a spotting scope on foot and from a vehicle to observe species present, locate suitable habitats (e.g., trees, grasslands, riparian areas, prairie dog towns, and other mammal burrows) and locate raptor nests. Also documented at the time of survey were signs such as whitewash or other indicators of past or present nesting (e.g., defensive behavior by raptors in the area, the presence of juvenile birds, and repeated observations of raptors, including ravens, in the same general area) . The locations of any special status species, raptor nests, and suitable habitats were recorded and mapped with a GPS unit. Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 2 TR C 3.0 Results 3.1 Desktop Resource Assessment According to the USFWS IPaC Trust Resources Report (USFWS 2023), ten ESA listed or candidate species were identified as potentially occurring within the Project Area or potentially affected as a result of Project implementation (Table 1). No Designated Critical Habitat is mapped within or in the vicinity of the Study Area (USFWS 2023). Table 1. Federally Listed Species Identified as Potentially Occurring in the Study Area Common Name Scientific Name Status' Preliminary Analysis within the Study Areal Mammals Preble's meadow jumping mouse Zapus hudsonius preblei FT Unlikely. Suitable habitat for the species consists of well - developed plains riparian vegetation with adjacent, relatively undisturbed grassland communities and a nearby water source. These riparian areas include a relatively dense combination of grasses, forbs, and shrubs. Gray Wolf Canis lupus FE Unlikely. Lone, dispersing gray wolves may be present throughout the state of Colorado. According to the USFWS IPaC, due to the location of the Study Area, this species only needs to be considered if the Project includes a predator management program. Tricolored bat Perimyotis sublavus PFE Unlikely. In winter, tricolored bats are often found in caves, abandoned mines, and culverts associated with roads. During the spring, summer, and fall, tricolored bats are found in forested habitats where they roost in trees, but may occasionally utilize human structures for roosting (USFWS 2024). Forested habitats are not found within the Project area, but oil and gas structures adjacent to the Project Area may provide potential roosting habitat and individual bats may forage through the Project Area. However, roosting habitat will not be removed as a result of the Project because Project disturbance will remain 100 feet from existing oil and gas structures. Birds Eastern black rail Laterallus jamaicensis ssp. jamaicensis FT Unlikely. The species is known to occur in Weld County as a year-round resident. Suitable nesting, migrating, and wintering habitat for the species consists of marshes and wet meadows including riparian marshes, coastal prairies, saltmarshes, and impounded wetlands. Piping plover Charadrius melodus FT None. The Project Area is located within the Upper South Platte River Basin. Based on the USFWS IPaC Report, this species is only required for consideration if water -related activities or use would occur within the North Platte, South Platte, or Laramie River basins. Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 3 '‘'` ,„,. TRC Common Name Scientific Name Status' Preliminary Analysis within the Study Area' Whooping crane Grus americana FE Unlikely. Based on the USFWS IPaC, this species may be affected during migration season (April to mid -May, or mid - September through October), as whooping cranes often use agriculture fields for stopover habitat during migration. Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 4 TRC Common Name Scientific Name Status' Preliminary Analysis within the Study Area' Fish Pallid sturgeon Scaphirhynchus albus FE None. The Project Area is located within the Upper South Platte River Basin. Based on the USFWS IPaC Report, this species is only required for consideration if water -related activities or use would occur within the North Platte, South Platte, or Laramie River basins. Insects Monarch butterfly Danaus plexippus FC Possible. Suitable breeding habitat (i.e., obligate milkweed host plant) for the monarch butterfly may be present within the Project Area. As a candidate species, the monarch butterfly does not receive statutory protection under the ESA; therefore, an effects determination is not a requirement for the monarch butterfly. Plants Ute ladies'- tresses Spiranthes diluvialis FT Unlikely. Suitable habitat for the species is complex and variable. One example of suitable habitat includes alluvial banks, point bars, floodplains, or oxbows associated with perennial streams, with a high-water table and short, perennial graminoid- and forb-dominated vegetation maintained by grazing, periodic flooding, or mowing. Western prairie fringed orchid Platanthera praeclara FT None. The Project Area is located within the Upper South Platte River Basin. Based on the USFWS IPaC Report, this species is only required for consideration if water -related activities or use would occur within the North Platte, South Platte, or Laramie River basins. Sources: USFWS 2023; Cornell Lab of Ornithology 2023, USFWS 2024. 1 FE = Federally Endangered; FT = Federally Threatened; FC = Federal Candidate; PFE = Proposed Federally Endangered 2 Potential for occurrence based on desktop analyses. Informal consultation with the USFWS Colorado ESFO will be required to confirm these preliminary findings. The CPW state Threatened and Endangered Species List identifies 31 species including 1 amphibian, 8 birds, 14 fish, and 8 mammals. State -listed threatened and endangered species are protected pursuant to Colorado Revised Statutes 33-2-105 and 33-6-109, and CPW Final Regulations Chapter 10, Article I, #1000 -Protected Species, wherein harassment, take, or possession of state -listed threatened and endangered species is prohibited. Species designated as State Special Concern are not protected under the statutory category described for threatened and endangered species but are considered in this analysis. Table 2 presents an assessment of each species that has the potential to occur within the Study Area based on known range and habitat requirements. Of the species listed in Table 2, only the ferruginous hawk has been documented by CNHP as observed in the Project vicinity (CNHP 2023). Based on the desktop resource assessment, no historic raptor nest sites have been documented within 0.5 miles of the Study Area. Based on habitat preference, geographic range, and habitat mapping (including desktop and field verification) conducted by TRC for the Project, suitable habitat for raptors, including burrowing owls, does occur within the Study Area. Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 5 TRC Table 2. State -Listed Species Identified as Potentially Occurring in the Study Area Common Name Scientific Name Status' Suitable Habitat Potential for Occurrence in Project Area Mammals Black- Footed Ferret Mustela nigripes SE Open grassland and prairie. Unlikely. Prairie dog towns are present within the Project Area. However, the USFWS in coordination with CPW has block - cleared all black -tailed prairie dog habitat (the main prey source of black -footed ferrets) in eastern Colorado (including Weld County), after determining that these areas no longer contain any wild free - ranging black -footed ferrets. Plains Pocket Gopher Geomys bursarius SC Loose, sandy/silty soils of the eastern plains with edible plant cover. Likely. Suitable habitat is found within the in Project Area. Birds Burrowing Owl Athene cunicularia ST Short to mixed -grass prairie and agricultural fields; associated with small mammal burrows. Likely. Suitable habitat is present within the Project Area. Ferruginous Hawk Buteo regalis SC Grasslands, sagebrush country, saltbush-greasewood shrublands, and edges of pinyon- juniper forests at low to moderate elevations. Unlikely. Suitable nesting habitat is not likely to be present within the Project Area. Existing oil and gas structures adjacent to the Project Area could be utilized by nesting pairs. Long -billed Curlew Numenius americanus SC Open habitats with relatively short grass and small, woody vegetation. Breeding habitat includes prairies, pastures, and agricultural fields. Possible. Suitable habitat is found within the in Project Area. Mountain Plover Charadrius montanus SC Prairie grasslands, arid plains, and fields. Possible. Suitable habitat is found within the in Project Area. Source: USFWS 2023; CODEX 2023; Cornell Lab of Ornithology 2023; CPW 2023a. ' SE = State Endangered; ST = State Threatened; and SC = State Special Concern Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 6 tir% TR C 3.2 Field Survey During the field survey, the Study Area was observed to consist entirely of grassland habitat dissected by oil and gas wells and gravel access roads. One special status species, the burrowing owl, was observed during the field survey. Table 3 lists TRC's observations documented during the field survey. Figure 2 shows the locations of TRC observations. Five active black -tailed prairie dog towns were recorded within the Study Area. Burrowing owls were observed within two of the prairie dog towns during the field survey (Table 3; Figure 2). One active burrowing owl burrow/nest site (Map ID 10) was identified within a prairie dog town (Map ID 09) withing the 0.5 mi buffer of the Project Area during the October 16th, 2023, survey. A second burrowing owl was observed flying (Map ID 03) in another prairie dog town (Map ID 02), but no burrow/nest was observed in the vicinity of the burrowing owl in flight. No federally listed, proposed, or candidate species were observed during the field survey. Of the ten species analyzed (Table 1), suitable habitat exists in the Study Area for the monarch butterfly. However, the monarch's obligate host species, milkweed was not observed at the time of the survey, but individual plants could have been missed due to the timing of the surveys outside of the flowering period. Existing oil and gas structures or road culverts adjacent to the Project may provide suitable roosting habitat for the tricolored bat. However, roosting habitat will not be removed as a result of Kersey Mine implementation and all disturbance will remain 100 feet from the existing oil and gas structures. Food and water sources (agricultural reservoirs and wetlands and waterbodies associated with the South Platte River) are located within two miles of the Project. Therefore, there is potential for this species to occur as a transient while foraging through the Permit Area. Areas of suitable habitat for all of the State listed threatened, endangered, and special concern species listed in Table 2 were observed within during the field survey. However, prairie dog towns recorded during the field effort are not present in areas of black footed ferret reintroductions. Additionally, the prairie dog towns observed are small in size and fragmented throughout the Study Area and, therefore, are not ideal for potential future reintroductions of the black -footed ferret. Additional raptor species observed during the survey included one red-tailed hawk perched within the Study Area and multiple northern harriers observed flying through the Study Area (Table 3; Figure 2). Incidental wildlife observations included a variety of species that are common to the area. Two songbird species, horned larks and western meadowlarks, were seen throughout the Study Area. Incidental mammal observations consisted of black -tailed prairie dogs, pronghorn antelope, cottontail rabbits, and coyote (scat observed). Two species of reptiles observed were prairie rattlesnakes and an ornate box turtle (Table 3; Figure 2). Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 7 TR C Table 3. Observations Collected During the Field Survey Within the Colorado Sands Kersey Mine Study Area Date Map ID Observation Comments 10/16/2023 01 Northern Harrier Species observed; 3 adults observed foraging/soaring/perched. 10/16/2023 02 Prairie Dog Town Active, burrowing owl and mountain plover habitat; Prairie rattlesnake observations within this town. 10/16/2023 03 Burrowing Owl Species observed; Observed flying at Map ID 02. 10/16/2023 04 Burrow Plains pocket gopher habitat; Burrows 3-4 inches in diameter; soft sandy soil; no mammals observed. Rabbit scat nearby. No pocket gophers observed at the time of survey. 10/16/2023 05 Burrow Plains pocket gopher habitat. No mammals observed at the time of survey. 10/16/2023 06 Prairie Dog Town Active. Suitable burrowing owl and mountain plover habitat. 10/16/2023 07 Prairie Dog Town Active. Suitable burrowing owl and mountain plover habitat. 10/16/2023 08 Northern Harrier Species observed flying through the Project Area. 10/16/2023 09 Prairie Dog Town Active. Suitable burrowing owl and mountain plover habitat. 10/16/2023 10 Burrowing Owl Species observed within a burrow at Map ID 09. 10/16/2023 11 Red-tailed Hawk Species observed perched on oil and gas structure 10/20/2023 12 Mountain Plover Habitat No mountain plover observed at time of survey. 10/20/2023 13 Prairie Dog Town Active. Suitable burrowing owl and mountain plover habitat. Prairie rattlesnake (2) observations within this town. 10/20/2023 14 Ornate Box Turtle Species observed at Map ID 13. Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 8 TRC 4.0 Conclusions and Recommendations Based on the special status species and habitat assessment, the following critical issues were identified that could result in the need for additional agency consultation and mitigation measures: • Suitable habitat for the monarch butterfly could not be ruled out during the field survey. Additional surveys during the milkweed's flowering season are recommended to determine the potential for presence of monarch butterflies and their obligate host species within the Project Area. As a Federal Candidate species, the monarch butterfly does not receive statutory protection under the ESA. • Existing oil and gas structures adjacent to the Project Area may provide suitable roosting habitat for the tricolored bat. However, Project disturbance will remain, at a minimum, 100 ft. from the existing oil and gas structures. Therefore, disturbance to roosting habitat as a result of the Project is not anticipated. • Burrowing owls (State Threatened) were observed in the Study Area. Potentially suitable habitat for the other five state -listed species (Table 2) may be present within the Project Area. TRC recommends consultation with CPW to obtain recommendations regarding the minimization of impacts on these species. • One active burrowing owl nest was documented within the Project Area during the October 2023 field survey. CPW recommends restricting ground disturbance and human encroachment within 1/4 mile of an active nest during the nesting season (March 15 through August 31). If future ground disturbance, facilities demolition, and human encroachment will occur within prairie dog towns between March 15 through October 31, additional pre -construction surveys should be conducted following CPW survey guidelines to determine the presence or absence of burrowing owls and their nests. • Because burrowing owls may be present at a nest site up to one month prior to egg laying and several months after the young have left the nest, CPW recommends that efforts to eradicate prairie dog towns or destroy abandoned towns not occur between March 15 through October 31 (CPW 2020). • Other migratory bird species observed in the Project Area include northern harriers, a red-tailed hawk, and a number of common songbird species. To ensure compliance with the MBTA, CPW recommends implementing avoidance measures such as performing land clearing/disturbance and existing facilities demolition outside of the breeding season for most migratory birds (August 1 through March 14) (CPW 2020). If future ground disturbance, facilities demolition, and human encroachment will occur during the breeding season (March 15 through July 31), additional pre -construction surveys for nesting birds should be conducted and nest buffers and avoidance periods should be implemented around active avian nests based on CPW and USFWS recommendations. If the start of ground disturbing activities and human use within the Project occurs prior to the start of the nesting season and nesting birds move into the area within the recommended buffer, TRC recommends consulting with CPW and the USFWS on additional mitigation measures, such as the use of a monitor during construction activities. Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 9 TRC 5.0 References Colorado Conservation Data Explorer (CODEX). (2023). GIS Online Mapping. Accessed October 2023 at: Map I CODEX (colostate.edu) Colorado Natural Heritage Program (CNHP). (2023). CNHP Spatial Layers — Statewide Elements by Quad. Accessed October 2023 at: https://cnhp.colostate.edu/maps/cnhp- spatial-layers/ Colorado Oil and Gas Conservation Commission (COGCC). (2023). GIS Online Mapping. Accessed October 2023 at: https://cogccmap.state.co.us/cogcc gis online/ Colorado Parks and Wildlife (CPW). (2015). State Wildlife Action Plan. Accessed October 2023 at: https://cpw.state.co.us/aboutus/Pages/StateWildlifeActionPlan.aspx Colorado Parks and Wildlife (CPW). (2020). Recommended Buffer Zones and Seasonal Restrictions for Colorado Raptors. Colorado Parks and Wildlife. (2023a). Threatened and Endangered Species List. Accessed October 2023 at: https://cpw.state.co.us/learn/Pages/SOC- ThreatenedEndangeredList.aspx. Colorado Parks and Wildlife (CPW). (2023b). Wildlife Species Map Application. Accessed October 12, 2023 at: https://cpw.maps.arcgis.com/apps/instant/interactivelegend/index.html?appid=b3e1 f4c17 e98481c85f9683b02e91250 Cornell Lab of Ornithology. (2023). All About Birds. Accessed October 2023 at: https://www.allaboutbirds.org/news/ Google Earth Pro. (2023) Current and historic aerial imagery of 40°24'43.03"N, 104°24'54.12"W. Accessed October 2023. Multi -Resolution Land Characteristics (MRLC) Consortium. (2023). MRLC Viewer —All National Land Cover Database (NLCD) 2016 Contiguous United States Land Cover. Accessed October 11, 2023, at: https://www.mrlc.gov/viewer/ U.S. Fish and Wildlife Service (USFWS). (2024). Environmental Conservation Online System (ECOS). Tricolored bat (Perimyotis subflavus)Accessed May 22, 2024 at: https://ecos.fws.gov/ecp/species/10515. U.S. Fish and Wildlife Service (USFWS). (2023). Unofficial IPaC resource list for the Sands Project, September 29, 2023. Colorado Sand Company LLC — Kersey Mine Special Status Species and Habitat Assessment Report May 2024 10 Figures COORDINATE SYSTEM' MAO 1983 STATEPLANE COLORADO NORTH RFS 0501 FEET MAP ROTATION 0 - SAVED BY JSTRONA ON 6/4/2094.15'.x1. 20 PM FILE PATH'TI1-PROJECTSICOLO.OO SAND COMPAN,535391 KERSEYMINEI9-APRXICOLORADO SAND CO KERSEV MINE APRX: LAYOUT NAME. FIGURE I SITE LOCATION I r _ - `� I � � fYI { o, '` }} �,,-y ,, • ..fir rya 1 "s.,J • I. '' .. ;, l �„ 9 K _ I�. /i9" II ` -'4" r l ,., C l ..r r . �C,' - 1, �. N. r--_.1 ` j Y` + J�,II 1 ti \ 1.\l VR-� •_ k1 _, •,.I ll v-�''BV - --,-V---) ,.__. y I ' �� `l ... a1 a as r 3, • \'`1—•d _ 1 . "' v1 C lL vii. I __ g; 1. .... ..n e. 3 I ` :n ..... wor ` e p; �.�- L_ • y X . A- 1 , ;8: �. STUDY AREA USGS 24K QUADRANGLE BOUNDARY WY NE PR''' COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO TITLE: STUDY AREA LOCATION CO - DRAWN BY: A. CLINE PROD. NO.: 535891 CHECKED BY: B. TRACY _ APPROVED BY: R.JENKINS FIGURE NM OK DATE: JUNE 2024 BASE QUAD.B RNESVISGS TOPO MAP D 2,000 4,000 EMARNESVILLE FEET BUILDING SUITE 150 TRC 1528 COLEDING BOULEVARDSUITE150 LAKEWOOD, CO 80401 PHONE: 303 792 5555 DATA SOURCES: TRC 1:48,000 1" = 4,000' FILE: COLORADO SAND CO_KERSEV MINE F FIELD SURVEY RESU! PROJECT: PROJECTAREA Q 0.5 -MILE BUFFER .025 -MILE BUFFER F77 PRAIRIE DOG TOWN DELINEATED BOUNDARY O BURROWING OWL O MOUNTAIN PLOVER HABITAT O NORTHERN HARRIER O PLAINS POCKET GOPHER HABITAT • ORNATE BOX TURTLE O PRAIRIE DOG TOWN • RED-TAILED HAWK BASE MAP: ESRI "WORLD IMAGERY"BASEMAP DATA SOURCES: TRC 0 1,500 3,000 FEET 1:36,000 1" = 3,000' Greeley I J COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO TITLE: HABITAT ASSESSMENT FIELD SURVEY RESULTS DRAWN BY: A. CLINE PROJ. NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: P. LORENZ DATE: MAY 2024 FIGURE 2 <� Tr2C 526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO_KERSEY MINE Exhibit H Page 9 EXHIBIT H-2 SIGNIFICANT WILDLIFE RESOURCES Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 WILDLIFE RESOURCES sAMINE. RFB.APRX. L/ PROJECT: _ PROJECT AREA Q 0.5 -MILE BUFFER Q .025 -MILE BUFFER F71 PRAIRIE DOG TOWN DELINEATED BOUNDARY O BURROWING OWL OBSERVATION • MOUNTAIN PLOVER HABITAT Q NORTHERN HARRIER O PLAINS POCKET GOPHER HABITAT • ORNATE BOX TURTLE Q PRAIRIE DOG TOWN • RED-TAILED HAWK BURROWING OWL NEST SITE BASE MAP: ESRI "WORLD IMAGERY"BASEMAP DATA SOURCES: TRC 0 1,500 3,000 FEET 1:36,000 1" = 3,000' COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO TITLE: SIGNIFICANT WILDLIFE RESOURCES Greeley I J DRAWN BY: R. BLAKE PROJ.NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: P. LORENZ DATE: JUNE 2024 EXHIBIT H-2 <� TIRC 526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO_KERSEY MINE. RFB Exhibit H Page 10 EXHIBIT H-3 U.S. FISH AND WILDLIFE SERVICE INFORMATION FOR PLANNING AND CONSULTATION TRUST RESOURCES REPORT PROJECT CODE: 2023-0135698 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 United States Department of the Interior FISH AND WILDLIFE SERVICE Colorado Ecological Services Field Office Denver Federal Center P.O. Box 25486 Denver, CO 80225-0486 Phone: (303) 236-4773 Fax: (303) 236-4005 In Reply Refer To: Project Code: 2023-0135698 Project Name: Sands September 29, 2023 Subject: List of threatened and endangered species that may occur in your proposed project location or may be affected by your proposed project To Whom It May Concern: The enclosed species list identifies threatened, endangered, proposed and candidate species, as well as proposed and final designated critical habitat, that may occur within the boundary of your proposed project and/or may be affected by your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.). New information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could change this list. Please feel free to contact us if you need more current information or assistance regarding the potential impacts to federally proposed, listed, and candidate species and federally designated and proposed critical habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of this species list should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the IPaC website at regular intervals during project planning and implementation for updates to species lists and information. An updated list may be requested through the IPaC system by completing the same process used to receive the enclosed list. The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to utilize their authorities to carry out programs for the conservation of threatened and endangered species and to determine whether projects may affect threatened and endangered species and/or designated critical habitat. A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) 09/29/2023 2 (c)). For projects other than major construction activities, the Service suggests that a biological evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat. Recommended contents of a Biological Assessment are described at 50 CFR 402.12. If a Federal agency determines, based on the Biological Assessment or biological evaluation, that listed species and/or designated critical habitat may be affected by the proposed project, the agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service recommends that candidate species, proposed species and proposed critical habitat be addressed within the consultation. More information on the regulations and procedures for section 7 consultation, including the role of permit or license applicants, can be found in the "Endangered Species Consultation Handbook" at: https: //www. fws. gov/sites/def ault/files/documents/endangered-specie s-consultation- handbook.pdf Migratory Birds: In addition to responsibilities to protect threatened and endangered species under the Endangered Species Act (ESA), there are additional responsibilities under the Migratory Bird Treaty Act (MBTA) and the Bald and Golden Eagle Protection Act (BGEPA) to protect native birds from project -related impacts. Any activity, intentional or unintentional, resulting in take of migratory birds, including eagles, is prohibited unless otherwise permitted by the U.S. Fish and Wildlife Service (50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a)). For more information regarding these Acts, see https://www.fws.gov/program/migratory-bird-permit/what- we-do. The MBTA has no provision for allowing take of migratory birds that may be unintentionally killed or injured by otherwise lawful activities. It is the responsibility of the project proponent to comply with these Acts by identifying potential impacts to migratory birds and eagles within applicable NEPA documents (when there is a federal nexus) or a Bird/Eagle Conservation Plan (when there is no federal nexus). Proponents should implement conservation measures to avoid or minimize the production of project -related stressors or minimize the exposure of birds and their resources to the project -related stressors. For more information on avian stressors and recommended conservation measures, see https://www.fws.gov/library/collections/threats-birds. In addition to MBTA and BGEPA, Executive Order 13186: Responsibilities of Federal Agencies to Protect Migratory Birds, obligates all Federal agencies that engage in or authorize activities that might affect migratory birds, to minimize those effects and encourage conservation measures that will improve bird populations. Executive Order 13186 provides for the protection of both migratory birds and migratory bird habitat. For information regarding the implementation of Executive Order 13186, please visit https://www.fws.gov/partner/council-conservation- migratory-birds. We appreciate your concern for threatened and endangered species. The Service encourages Federal agencies to include conservation of threatened and endangered species into their project planning to further the purposes of the Act. Please include the Consultation Code in the header of this letter with any request for consultation or correspondence about your project that you submit to our office. 09/29/2023 3 Attachment(s): ■ Official Species List OFFICIAL SPECIES LIST This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the requirement for Federal agencies to "request of the Secretary of the Interior information whether any species which is listed or proposed to be listed may be present in the area of a proposed action". This species list is provided by: Colorado Ecological Services Field Office Denver Federal Center P.O. Box 25486 Denver, CO 80225-0486 (303) 236-4773 09/29/2023 4 PROJECT SUMMARY Project Code: 2023-0135698 Project Name: Sands Project Type: Surface Exploration - Non Energy Materials Project Description: CO surface Project Location: The approximate location of the project can be viewed in Google Maps: https:// www.google.com/maps/@40.413979299999994,-104.4131464646427,14z Counties: Weld County, Colorado 09/29/2023 5 ENDANGERED SPECIES ACT SPECIES There is a total of 10 threatened, endangered, or candidate species on this species list. Species on this list should be considered in an effects analysis for your project and could include species that exist in another geographic area. For example, certain fish may appear on the species list because a project could affect downstream species. Note that 3 of these species should be considered only under certain conditions. IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA Fisheriesl, as USFWS does not have the authority to speak on behalf of NOAA and the Department of Commerce. See the "Critical habitats" section below for those critical habitats that lie wholly or partially within your project area under this office's jurisdiction. Please contact the designated FWS office if you have questions. 1. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce. MAMMALS NAME Gray Wolf Canis lupus Population: U.S.A.: All of AL, AR, CA, CO, CT, DE, FL, GA, IA, IN, IL, KS, KY, LA, MA, MD, ME, MI, MO, MS, NC, ND, NE, NH, NJ, NV, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, and WV; and portions of AZ, NM, OR, UT, and WA. Mexico. There is final critical habitat for this species. This species only needs to be considered under the following conditions: ■ Lone, dispersing gray wolves may be present throughout the state of Colorado. If your activity includes a predator management program, please consider this species in your environmental review. Species profile: https://ecos.fws.gov/ecp/species/4488 Preble's Meadow Jumping Mouse Zapus hudsonius preblei There is final critical habitat for this species. Your location does not overlap the critical habitat. Species profile: https://ecos.fws.gov/ecp/species/4090 General project design guidelines: https://ipac.ecosphere.fws.gov/prof ect/ZUQG44XGUREO5N7J5PWGLEX2ZE/documents/ generated/6861.pdf Tricolored Bat Perimyotis sub flavus No critical habitat has been designated for this species. Species profile: https://ecos.fws.gov/ecp/species/10515 STATUS Endangered Threatened Proposed Endangered 09/29/2023 6 BIRDS NAME Eastern Black Rail Laterallus jamaicensis ssp. jamaicensis No critical habitat has been designated for this species. Species profile: https://ecos.fws.gov/ecp/species/10477 Piping Plover Charadrius melodus Population: [Atlantic Coast and Northern Great Plains populations] - Wherever found, except those areas where listed as endangered. There is final critical habitat for this species. Your location does not overlap the critical habitat. This species only needs to be considered under the following conditions: Project includes water -related activities and/or use in the N. Platte, S. Platte, and Laramie River Basins which may affect listed species in Nebraska. Species profile: https://ecos.fws.gov/ecp/species/6039 Whooping Crane Grus americana Population: Wherever found, except where listed as an experimental population There is final critical habitat for this species. Your location does not overlap the critical habitat. Species profile: https://ecos.fws.gov/ecp/species/758 FISHES NAME STATUS Threatened Threatened Endangered STATUS Pallid Sturgeon Scaphirhynchus albus No critical habitat has been designated for this species. This species only needs to be considered under the following conditions: ■ Project includes water -related activities and/or use in the N. Platte, S. Platte, and Laramie River Basins which may affect listed species in Nebraska. Species profile: https://ecos.fws.gov/ecp/species/7162 INSECTS NAME Monarch Butterfly Danaus plexippus No critical habitat has been designated for this species. Species profile: https://ecos.fws.gov/ecp/species/9743 FLOWERING PLANTS NAME Endangered STATUS Candidate STATUS Ute Ladies' -tresses Spiranthes diluvialis No critical habitat has been designated for this species. Species profile: https://ecos.fws.gov/ecp/species/2159 Western Prairie Fringed Orchid Platanthera praeclara No critical habitat has been designated for this species. Species profile: https://ecos.fws.gov/ecp/species/1669 Threatened Threatened 09/29/2023 7 CRITICAL HABITATS THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S JURISDICTION. YOU ARE STILL REQUIRED TO DETERMINE IF YOUR PROJECT(S) MAY HAVE EFFECTS ON ALL ABOVE LISTED SPECIES. 09/29/2023 8 IPAC USER CONTACT INFORMATION Agency: Private Entity Name: Doree Dufresne Address: 123 N College Ave, Suite 370 City: fort collins State: CO Zip: 80524 Email ddufresne@trccompanies.com Phone: 9709992669 Exhibit I Page 1 EXHIBIT I SOILS INFORMATION Per Rule 6.4.9 -- Soils Information: (1) In consultation with the Soil Conservation Service or other qualified person, the Operator/Applicant shall indicate on a map (in Exhibit C) or by a statement, the general type, thickness, and distribution of soil over the affected land. Such description will address suitability of topsoil (or other material) for establishment and maintenance of plant growth. If necessary, at its discretion, the Board may require additional information on soils or other growth media to be stockpiled and used in revegetation. Refer to Exhibit C-4: Affected Area - Soils Mapping for a depiction of the soil units present within the Kersey Mine Site. The following supplemental information is provided and should be considered in conjunction with the map -depicted data. In addition to the foregoing, a summary of the mapped soils is also provided in Table I-1: Summary of Mapped Soils Data, below. The proposed Kersey Mine consists mainly of rangeland occupied by numerous active and inactive oil and gas wells and associated well pads and related infrastructure. It is not anticipated that "refuse" materials will be encountered. To the extent any such materials may be encountered, CSC will ensure that the disposition of any such materials will be accomplished in a manner consistent with all applicable laws, regulations, and ordinances. The eolian sand deposit to be mined is the result of wind erosion (deflation), transport, and re -deposition, largely via saltation and/or creep processes. The Kersey Mine sand deposit is on the northeast flank of the Denver Basin (also referred to as the Denver-Julesburg, or D -J Basin), a tectonic basin located in northeast Colorado, southeast Wyoming, and southwest Nebraska. The D -J Basin is bounded on the west by the Colorado Front Range (Dechesne, M. and others; 2011). Areas of the D -J Basin that are adjacent to the Rocky Mountain Front Range have been divided into two sub -basins: (a) the southern sub -basin is considered the Denver Basin; and, (b) the northern sub - basin is considered the Cheyenne Basin. The Denver and Cheyenne Basins are defined by the extent of the Laramie Formation and are separated by a structural feature called the Greeley Arch. The basin's underlying sedimentary rocks are comprised of sedimentary units that dip generally to the south and southwest at about 50 to 100 ft. per mile. The immediate underlying strata are comprised of the upper and lower units of the Laramie Formation, respectively, with the uppermost part consisting of 250 to 600 ft. of shale, siltstone, claystone, occasional sandstone, and minor coal. Below this, the lower unit is comprised of an approximately 100 to 300 ft. thick zone of sandstone, shale, and coal. (Kirkham and Ludwig; 1979). Per the USDA soils data, the Valent sand that is to be mined is of neutral acidity. Mining activity will be carried out in such materials; no bedrock or other types of material are anticipated to be encountered. Thus, no acid -generating or toxic materials are anticipated to be present within the mined materials. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit I Page 2 TABLE I-1: SUMMARY OF MAPPED SOILS DATA Map Unit Symbol Soil Type Drainage Class Hydric Soil Rating Farmland Classification Percent of Mine Area 69 Valent sand, 0 to 3 percent slopes Excessively drained 0 Farmland of local importance 34.9 70 Valent sand, 3 to 9 percent slopes Excessively drained 0 Not Prime Farmland 63.7 72 Vona loamy sand, 0 to 3 percent slopes Well drained 0 Farmland of local importance 1.4 Source: USDA NRCS 2023. The predominant soil type present within the Kersey Mine is Map Unit Symbol 70, that being Valent sand. Based on USDA soil mapping, sand and loamy sand (considered viable growth medium) is typically present to a nominal one ft. depth and is underlain by the mineable sand horizon (typically present to varying depths of up to 30 to 50 ft. below ground surface; often with interspersed clay lenses present) across the Permit Area. CSC has completed numerous soil borings and/or exploration drill holes throughout the Site, virtually all of which verify the presence of sand, presumably of the Valent classification, as being ubiquitous across the Site. A more detailed description of the Valent Series (as described in the USDA National Cooperative Soil Survey; 2008) is provided (in part) as follows: VALENT SERIES The Valent series consists of very deep excessively drained soils that formed in mixed eolian sands. Valent soils are an upland dune topography. Slopes range from 0 to 60 percent. The mean annual precipitation is about 41 centimeters (16 inches), and the mean annual temperature is about 10 degrees C. (50 degrees F.) at the soil type location. Taxonomic Class: Mixed, mesic Ustic Tropopsamments Typical Pedon: Valent sand, grassland. (Colors are for dry soil unless otherwise noted.) A: 0 to 10 centimeters (0 to 4 inches); grayish brown (10YR 5/2) sand, dark grayish brown (IOYR 4/2) moist; single grain; loose; neutral (pH 7.2); gradual smooth boundary. (8 to 25 centimeters (8 to 10 inches) thick C: 10 to 152 centimeters (4 to 60 inches); pale brown (IOYR 6/3) fine sand, brown (IOYR 5/3) moist; single grain; loose; neutral (pH 7.2). Geographically Associated Soils: This is the Dailey soils. Dailey soils have a mollic epipedon, Drainage and Saturated Hydraulic Conductivity: Drainage: excessively drained. Runoff. low. Saturated Hydraulic Conductivity: high to very high Use and Vegetation: These soils are used principally as native rangeland; however, they are irrigated under sprinkler irrigation in some localities. Principal native revegetation is yucca, sage, cactus, sand dropseed, sand reedgrass, big bluestem, little bluestem, sideoats grama and sand bluestem. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit I Page 3 The Vona Series, accounting for only 1.4% of the Mine Area, consists of very deep, well or somewhat excessively drained soils that formed in eolian or partly wind reworked alluvial materials (USDA National Cooperative Soil Survey; 2008). The available soils can be considered suitable growth medium because they support vegetation and rangeland uses in their pre -mining state. Viable growth medium will be extracted in front of the advancing pit of each annually mined block (typically about 100 to 120 acres). A nominal 1 ft. of material will be stripped, temporarily stored (and stabilized), and subsequently utilized for reclamation in previously mined out areas (at steady-state mining conditions, this would typically be the prior years' mining block). This process ensures the effective replacement of the existing growth medium over the target sand deposit during steady-state operations. The recovered horizon of growth medium, integral to CSC's reclamation strategy, serves as a foundation for sustaining plant growth. Reclamation success will be evaluated for all disturbed areas during a five-year post -reclamation monitoring and maintenance period. See Exhibit E: Reclamation Plan for more details about the reclamation plan for the Mine. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 �i TRC May 24, 2024 Brady Reece, Chief Commercial Officer Colorado Sand Company II, LLC 2001 Kirby Drive, Suite 360 Houston, TX 77019 1382 W Ninth St., Suite 400 T 216.344.3072 Cleveland, OH 44113 TRCcompanies.com RE: Geotechnical Stability Report Kersey Sand Mine County Road 61 and County Road 64 - Kersey, Colorado TRC Project No.: 535891.0000.0000 Dear Mr. Reece: TRC Engineers, Inc. (TRC) is pleased to present this Geotechnical Stability Report related to the proposed surface mining to be performed at the Kersey Sand Mine located along Country Road 61 and Country Road 64 in Kersey, CO (Project Site). The work was performed by TRC as requested by the Colorado Sand Company LLC in accordance with TRC's proposal and the subsequent authorization to proceed. This letter report summarizes our understating of the project, describes the recently completed geotechnical drilling and testing procedures, discusses our observations of subsurface conditions at the boring locations, and presents setback and cut slope recommendations related to the proposed surface mining operations at the Project Site. PROJECT DESCRIPTION The project site is located east of Weld County Road 61 and south of Weld County Road 64 near Kersey, Colorado. The site area is relatively flat and undeveloped and primarily vegetated with grasses and other vegetation. Proposed plan and profile or grading plan of the surface mine is not available at the time of writing this report. Based on our understanding of the project, existing features on the Project Site includes oil and gas well heads, water wells, and oil, gas and water pipelines. The depth and size of the wells and pipelines have not been provided to TRC. We understand that currently plans consists of providing a 50 -foot buffer from all pipelines and well heads and that the anticipated maximum excavation depth of the surface mining is 20 to 30 feet below existing ground surface (bgs). FIELD AND LABORATORY WORK Field Work TRC coordinated the completion of a total of eight (8) Standard Penetration Test (SPT) borings designated as TH-1 through TH-8 on April 29, 2024, at the approximate locations shown on the attached Boring Location Plan (Attachment A). TRC subcontracted a local drilling contractor, CTL Thompson, Inc. to complete the drilling and soil sampling. The boring locations were marked out in the field by TRC with the use of a hand-held GPS unit utilizing sub -foot accuracy. Prior to drill rig mobilization, TRC's drilling subcontractor contacted the Colorado 811 One Call utility �i TRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 2 notification service to verify public utility locations within public right-of-way and easements where these utilities may enter the Project Site. TRC geologist was on -site to inspect and log the borings. The borings were drilled to depths ranging from approximately 15 to 25 ft bgs using 4 -inch diameter continuous flight augers. The soil samples were obtained by driving a Modified California -type Sampler (2.5 -inch O.D.) 12 inches into the subsurface. The number of blows required for each 6 inches of penetration was recorded separately. The blow counts were summed for each sampling interval and were correlated to N -values determined by the Standard Penetration Test (SPT) ASTM D1586 by applying a correlation factor. When using a sampler size of 2.5 -inch O.D. a conversion factor of 0.85 for clay type soils and 0.63 for sand type soils is typically used. The SPT N -value serves as an indicator of relative consistency for cohesive soils and relative density of granular soils. The blow counts are shown on the attached boring logs prepared by CTL. (Attachment B), at the respective sample depths. Boring (TH-1, TH-5, TH-6, and TH-7) were drilled to a depth of 25 bgs, while borings (TH-2, TH-4, and TH-8) were terminated at 20 feet bgs. Lastly, boring TH-3 was drilled to a depth of 15 feet bgs. Upon completion, all test borings were backfilled to the approximate existing ground surface with the auger cuttings. Table 1 summarizes the coordinates, existing ground surface elevations, and boring termination depth. Table 1: Summary of Borings Boring Boring Coordinates' Elevation of Existing Ground Surface' Termination (ft. bgs)Z Depth to Auger Refusal (ft. bgs) Latitude Longitude TH-1 40.439167 -104.425000 4754 25 23.5 TH-2 40.435278 -104.400556 4710 20 12.0 TH-3 40.417324 -104.406412 4680 15 8.0 TH-4 40.407166 -104.412785 4663 20 20.0 TH-5 40.400045 -104.400439 4631 25 22.5 TH-6 40.399007 -104.427685 4667 25 23.0 TH-7 40.411876 -104.422103 4679 25 23.0 TH-8 40.427222 -104.419444 4708 20 14.5 1. Coordinates and elevations of existing ground surface at the boring locations are approximate and are based on a handheld GPS unit and Google Earth, respectively. 2. bgs= below existing ground surface Laboratory Work Upon completion of the borings, the soil samples were delivered to CTL Thompson, Inc. laboratory for subsequent geotechnical laboratory testing. Representative soil samples were selected for laboratory testing by TRC. Laboratory testing was performed on selected samples in order to determine soil index properties (moisture contents, particle gradations, and plasticity) and direct shear testing. The laboratory -testing program was conducted in accordance with applicable ASTM specification. The laboratory test results are provided in Attachment B. Table 2 below summarize the quantities of laboratory testing performed. TIRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 3 Table 2: Summary of Laboratory Testing Type of Test Applicable Test Standard Number of Test Conducted Moisture Content AASHTO T265 / ASTM D2216 9 Mechanical Grain -Size Analysis AASHTO T88 / ASTM D422 9 Atterberg Limits AASHTO T89, T90 / ASTM 4318 9 Direct Shear ASTM D3080 3 SITE CONDITIONS Geology According to the Colorado Geologic map, the site is underlain by Eolian deposits and Laramie formation. The Laramie formation is composed of sandstone, shale, claystone, and coal. It known for being the primary coal bearing unit in the Rocky Mountain region. Furthermore, Eolian deposits consists of clay, silt, and fine sands. These types of soils arise an issue of being collapsable soils. Subsurface Conditions This section presents the generalized subsurface conditions observed during the field exploration. During the field activities, TRC's on -site inspector also made observations of existing topsoil (gravel or other surface material) thicknesses, groundwater conditions, surface features, and other site observations deemed important to the proposed project, as applicable. Detailed descriptions of the subsurface conditions encountered within each boring are presented on each individual boring log included in Attachment B. It should be noted that lithological boundaries on the boring logs represent the approximate location of changes of soil types. In situ, the transitions may be gradual. The subsoils encountered in the test borings generally consisted of clayey sands and sandy clays over sandstone and claystone bedrock. Correlated N -values indicate the relative density of the clayey sands and sandy clays range from "loose" to "medium dense". Laboratory testing performed on representative samples indicates in -place moisture contents ranging from approximately 2.1`)/0 to 15.7% Atterberg Limits testing on the fine-grained portion of these soils indicates liquid limits ranging from non -plastic to 28`)/0 and plasticity indices ranging from non - plastic to 14%. Primarily sandstone bedrock was encountered between approximately 8 and 24 ft bgs and extended to the maximum depths explored. The sandstone was described as brown, rust, white, slightly moist, hard to very hard. Claystone was encountered below the sandstone layer in boring TH-1 and extends to the termination depth of the boring. Claystone can be described as grey, rust, slightly moist, medium hard to hard. Ground Water Observations for groundwater were made during drilling and shortly after completion in each test boring. Groundwater was not encountered at all test boring locations except for boring TH-5 where it was encountered at a depth of approximately 24 feet bgs. It should be noted the presence, depth, and quantity of hydrostatic groundwater levels and upper (perched) saturation zones TIRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 4 should be expected to fluctuate seasonally based on variations in rainfall, climatic conditions, site surface runoff characteristics, evapotranspiration, permeability of on -site soils, continuity of pervious materials, irrigation practices, land use, and other factors. Consequently, any measured groundwater levels shown on the boring logs only represent conditions at the time the readings were collected and may thus be different at the time of construction, which can include levels encountered at shallower depths during periods of heavy precipitation. Static daily and seasonal groundwater levels and upper (perched) saturation zones would need to be determined through the installation and long-term monitoring of piezometers. This was outside of TRC's scope of work. Any changes noted in groundwater levels during the construction process may require a review of the recommendations presented in this memorandum. SLOPE STABILITY ANALYISS RESULTS In an effort to evaluate the global stability of potential slopes that would be created during surface mining activities, TRC performed a slope stability analysis using SLIDE2, Version 9.024, developed by RocScience, Inc. SLIDE2 is a slope stability computer modeling program that solves the stability of the cross-section with a two-dimensional limiting equilibrium method by analyzing numerous potential failure planes to find the critical failure surface that results in the lowest factor of safety (FOS) for the slope. For this analysis, a minimum acceptable value of factor of safety used is 1.5 pursuant to USACE guidance (Engineering Manual EM 1110-2-1902 Slope Stability) for long term slopes under static conditions. A minimum acceptable factor of safety of 1.1 was used in the analysis to evaluate potential effects of earthquake/seismic (pseudo -static) conditions. The FOS against sliding in the analysis is calculated using Bishop Simplified and Janbu Simplified Methods. A peak ground horizontal acceleration factor of 0.0643g was used for the approximate Project Site location based on the USGS Unified Hazard Online Tool (https://earthquake.usgs.gov/hazards/interactive/). This factor is the peak acceleration with 2 percent probability of exceedance in 50 years. It should be noted that due to the relatively shallow depth to bedrock, the horizontal acceleration factor was not adjusted to account for damping or amplification effects. A general cross section was developed as part of the slope stability analysis to evaluate proposed slopes ranging from 2H:1 V to 3H:1 V in grades. Soil information and shear strength parameters used were extracted from CTL report dated May 15, 2024, and are summarized in Table 3 below. Table 3: Soil Parameters Material Name Unit Weight (pcf) Saturated Unit Weight (pcf) Cohesion (psf) Phi (deg) Clayey Sand 120 N/A 25.0 28 Sandstone 130 N/A 5000 35 The FOS calculated for the various slopes analyzed are summarized in Table 4 below. TIRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 5 Table 4: Slope Stability Analysis Results Conditions FOS Minimum FOS 2H:1 V (static) 1.2 1.5 2H:1 V (pseudo-static/seismic) 1.1 1.1 3H:1 V (static) 1.8 1.5 3H:1V (pseudo-static/seismic) 1.5 1.1 2.5H:1 V (static) 1.5 1.5 2.5H:1 V (pseudo-static/seismic) 1.3 1.1 CONCLUSIONS The slope stability analysis indicates that a proposed 2H:1 V slope do not result in acceptable FOS, and therefore, should not be constructed. Therefore, shallower slopes were evaluated and determined that the maximum recommended slope to achieve an acceptable FOS of 1.5 for static conditions and 1.1 for seismic conditions is 2.5H:1V. Model geometry, slip surface, and FOS for the evaluated scenarios are provided in Attachment C. It is also anticipated that the preferred 50 -ft buffer as previously discussed would be appropriate as the slope failure surfaces appear to terminate near the crest of the slope and do not extend back. Although groundwater was not encountered in the boreholes at the time of the exploration, seepage that develops along the excavation sloped may develop localized shallow sloughing. This is not considered global instability and can be addressed during routine maintenance on a case -by -case basis. LIMITATIONS This letter report has been prepared for the Colorado Sand Company LLC for planning and permitting of the proposed surface mining activities at the project site located in Kersey, CO. Transfer of this report or included information is at the sole discretion of the Colorado Sand Company LLC. TRC's contractual relationship remains with the Colorado Sand Company LLC and limitations stated herein remain applicable regardless of end user. The opinions, conclusions, and recommendations presented in this memorandum have been formulated in accordance with accepted geotechnical engineering practices that exist in the area at the time this memorandum was written. No other warranty, expressed or implied, is made or should be inferred. The opinions, conclusions and recommendations contained in this memorandum are based upon limited information obtained from our investigation, which includes data from a limited number of widely separated discrete locations, visual observations from our site reconnaissance, and review of other geotechnical data provided to us, along with local experience and engineering judgment. An attempt has been made to provide for normal contingencies; however, the possibility remains that differing or unexpected conditions may be encountered during construction. If this should occur, or if additional or contradictory data are revealed in the future, TRC should be notified so that modifications to this memorandum can be made, if necessary. TRC is not responsible for tApriv TIRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 6 any conclusions or opinions drawn from the data included herein, other than those specifically stated, nor are the recommendations presented in this memorandum intended for direct use as construction specifications. The opinions presented in this memorandum are valid as of the present date for the property evaluated. Changes in the condition of the property will likely occur with the passage of time due to natural processes and/or the works of man. In addition, changes in applicable standards of practice can occur as a result of legislation and/or the broadening of knowledge. Furthermore, geotechnical issues may arise that were not apparent at the time of our investigation. Accordingly, the opinions presented in this memorandum may be invalidated, wholly or partially, by changes outside of our control. Therefore, this memorandum is subject to review and should not be relied upon after a period of three years. Similarly, this memorandum should not be used, nor are its recommendation applicable, for any other properties or alternate developments. We trust this report contains the information you require and thank you for the opportunity to work on this project. Please consider our firm for future geotechnical services as needed. Sincerely, TRC Engineers, Inc. Nizar Altarawneh, P.E.* Staff Geotechnical Engineer Shawn D. McGee, P.E. Geotechnical Engineering — Office Practice Leader cc: Grant Waldie, PE, P.Eng., PMC and Dustin Krajewski, PE (TRC) Attachments: A - Boring Location Plan B — Field and Laboratory Data (provided by CTL) C - Slope Stability Analysis TIRC Geotechnical Stability Report — Kersey Mine May 24, 2024 Kersey, Colorado Attachment A: Boring Location Plan �i TRC 535891 -Colorado Sand_Kersey Mine Project Kersey, Colorado ;THI:,1 40.439,1_67', -104.425004 ' TH-2 4045278'....J04.400556` TH,B 40,427222`; -104.,419444' t 4 a \TFi`-7D.41.876"!'1'04,422103" kTH-4¢40.4071I66-y-104.41122785' , p , a %`° 0714'1 f !zt '11. Google Earth hi�pzd%Y.7D24 Airbus Note: Boring locations shown represent locations determined with hand held GPS unit utilizing sub -foot accuracy and does not represent field survey. Legend Geotechnical Borings Geotechnical Stability Report — Kersey Mine May 24, 2024 Kersey, Colorado Attachment B: Field and Laboratory Data (provided by CTL) h‘i TRC CTLITHOMPSON GEOTECHNICAL INVESTIGATION Kersey Sand Mine County Road 61 and County Road 64 Kersey, Colorado Prepared for: TRC Companies 1526 Cole Blvd, Suite 150 Lakewood, Colorado 80401 Attention: Grant Waldie Project No. FC11079.001-125 May 15, 2024 CTLIThompson, Inc. Denver, Fort Collins, Colorado Springs, Glenwood Springs, Pueblo, Summit County — Colorado Cheyenne, Wyoming and Bozeman, Montana Table of Contents Scope Summary Of Conclusions Site Conditions Previous Investigation Investigation Subsurface Conditions Groundwater Limitations FIGURE 1 — LOCATIONS OF EXPLORATORY BORINGS FIGURE 2 - SUMMARY LOGS OF EXPLORATORY BORINGS APPENDIX A - RESULTS OF LABORATORY TESTING Scope This report presents the results of our Geotechnical Investigation for the proposed sand mine in Kersey, Colorado (Figure 1). The purpose of the investigation was to explore the subsurface conditions, and provide material information and testing results. The scope was described in a Service Agreement (No. FC-23-0426 CM -1) dated April 22, 2024. Evaluation of the property for the presence of potentially hazardous materials was not included in our work scope. The report was prepared from data developed during field exploration, and field and laboratory testing. The report includes a description of subsurface conditions found in our exploratory borings. The report was prepared for the exclusive use of TRC Companies and your team. Our findings are summarized in the following paragraphs. Summary Of Conclusions 1. Strata encountered in our borings generally consisted of clayey sands and sandy clays over sandstone and claystone bedrock. Primarily sandstone bedrock was encountered between approximately 8 and 24 feet and extended to the maximum depths explored. 2. Groundwater was measured at an approximate depth of 24 feet in one boring during drilling. Groundwater levels may fluctuate seasonally and rise in response to precipitation, irrigation and changes in land -use. Site Conditions The site is located east of Weld County Road 61 and south of Weld County Road 64 near Kersey, Colorado. The site is generally in a plains area and is primarily vegetated with grasses and weeds. At the time of our exploration the site was undeveloped with utilities and dirt roads. The project site is generally hilly. No water features or rock outcrops were noted onsite. Oil industry infrastructure and access roads were noted onsite. Previous Investigation CTL Thompson performed a Preliminary Geotechnical Investigation on a northern section of the site (Project No. FC11079.000-115), dated April 5, 2024. The previous investigation was reviewed in preparation for this report. TRC COMPANIES KERSEY SAND MINE CTLI T PROJECT NO. FC11079.001-125 1 Investigation The field investigation included drilling and sampling eight exploratory borings at the approximate locations presented on Figure 1 as selected by the client. The borings were drilled to depths of approximately 15 to 25 feet using 4 -inch diameter continuous -flight augers, and a truck -mounted drill rig. Drilling was observed by our field representative who logged the soils and bedrock and obtained samples for laboratory tests. Summary logs of the exploratory borings, including results of field penetration resistance tests and a portion of laboratory test data, are presented on Figure 2. Soil and bedrock samples obtained during drilling were returned to our laboratory and visually examined by our geotechnical engineer. Laboratory testing was assigned by the client and included moisture content, dry density, particle -size analysis, direct shear, and Atterberg limits. Results of the laboratory tests are presented in Appendix A and summarized in Table A -I. Subsurface Conditions Strata encountered in our exploratory borings generally consisted of 8 to 23 feet of clayey sands and sandy clays. Sandstone and claystone bedrock was encountered in all borings at 8 to 24 feet to the maximum depths explored. The sand encountered was loose to very dense and contained between 6 and 46 percent silt and clay sized particles. Groundwater Groundwater was encountered at a depth of 24 feet in one boring during drilling. Groundwater may develop on or near the bedrock surface or other low permeable soil or bedrock when a source of water not presently contributing becomes available. Limitations This report has been prepared for the exclusive use of TRC Companies, and the design team for the project, to provide geotechnical information for the proposed project. within about three years, we should be contacted to determine if we should update this report. Our borings and laboratory testing were determined by the client. The borings are representative of conditions encountered only at the location drilled. Subsurface variations not indicated by our borings are TRC COMPANIES KERSEY SAND MINE CTIJ T PROJECT NO. FC11079.001-125 2 possible. We believe this investigation was conducted with that level of skill and care ordinarily used by geotechnical engineers practicing under similar conditions. No warranty, express or implied, is made. If we can be of further service in discussing the contents of this report, or in the analysis of the influence of subsurface conditions on design of the structures or any other aspect of the proposed construction, please call. CTO THOMPSON, !Mr R.B. "Chip" Leadbetter, III, PE Senior Engineer TRC COMPANIES KERSEY SAND MINE CTLI T PROJECT NO. FC11079.001-125 3 APPROXIMATE SCALE: 1,2000' 0 100002000' TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. PC11.0T9,001. SS VICINITY MAP (KERSEY,, CDLDR ODO) NOT TO SCALE LEGEND: TH-1 INDICATES APPROXIMATE • LOCATION OF EXPLORATORY BORING INDICATES PROPERTY BOUNDARY Locations of Exploratory Borings FIGURE 1 0 - 5 - - 10 - - 15 - - 20 - - 25 - - 30 - - 35 - - 40 TH-1 R./ %y -3 71M12 Nv PI=NP 50/11 50/9 �] 50/5 ®50/9 50/12 145/12 KERSE ZPLE On T PROJECT No. Fcllmeuol-125 TH-4 TH-5 TH-6 TH-7 TH-8 7.7 I: -2▪ LL▪ ,00--lo 3/12 2 �� W o-rvP �7 27/12 .-7 t� R! 21/12 Ty r� 112/12 eA 114/12 7,6H2 i16/12 -I 13/12 /.%31/12 4 ^7 10/12 9412 -rvP 25/12 8/12 42/12 34/12 50/12 50/10 0 5- 10- 15 - 20-F 25- - 30- - 35- - 40_ LEGEND: 7 /, SAND, CLAYEY, SLIGHTLY MOIST, LOOSE TO VERY DENSE, BROWN CLAY, SANDY, SLIGHTLY MOIST, VERY STIFF, BROWN ® SANDSTONE, SLIGHTLY MOIST, HARD TO VERY HARD, BROWN, RUST, WHITE CLAYSTONE, SLIGHTLY MOIST, MEDIUM HARD TO HARD, GREY, RUST b 7 DRIVE SAMPLE. THE SYMBOL 30/12 INDICATES 30 BLOWS OF 140 -POUND HAMMER FALLING 30 INCHES WERE REQUIRED TO DRIVE A 2.5 -INCH O.D. SAMPLER 12 INCHES. �L WATER LEVEL MEASURED AT TIME OF DRILLING. NOTES: 1. THE BORINGS WERE DRILLED ON APRIL 29TH, 2024 USING 4 -INCH DIAMETER CONTINUOUS -FLIGHT AUGERS AND A TRUCK -MOUNTED DRILL RIG. 2. THESE LOGS ARE SUBJECT TO THE EXPLANATIONS, LIMITATIONS AND CONCLUSIONS IN THIS REPORT. WC - INDICATES MOISTURE CONTENT (%). DD - INDICATES DRY DENSITY (PCF). SW - INDICATES SWELL WHEN WETTED UNDER OVERBURDEN PRESSURE (%). -200 - INDICATES PASSING NO. 200 SIEVE (%). LL - INDICATES LIQUID LIMIT. PI - INDICATES PLASTICITY INDEX. UC - INDICATES UNCONFINED COMPRESSIVE STRENGTH(PSF). SS - INDICATES SOLUBLE SULFATE CONTENT (%). Summary Logs of Exploratory Borings FIGURE 2 APPENDIX A RESULTS OF LABORATORY TESTING HYDROMETER ANALYSIS SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 "16 "10 *8 *4 3/8" 3/4" 1%" 3" 5"6" 8" 100 9010 8020 7030 z�Qca z 6040zcc 7••••• Lu - w50ce 50vace 4060 a3070 20 80 I i 1 10 90 I i A I p 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 2.0 2.38 4.76 9.52 19.1 36.1 76.2 12; 52200 0.42 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, CLAYEY (SC) Fro m TH - 1 AT 4 FEET GRAVEL 0 % SAND SILT & CLAY 18 % LIQUID LIMIT PLASTICITY INDEX 82 % NV % NP % HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 *16 *10 *8 *4 3/8" 3/4" 1/:" 3" 5" 6" 8'0 100 I I 10 90 80 I i 20 If i z 70 30 O Lu z a 60 40 ce ! U 50ce 50 w c.) w a ce w 40 60 G- 30 70 20 80 I I 10 90 pI�� I �� 100 001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 210 2.38 4.76 9.52 19.1 36.1 76.2 127 200 0.42 152 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, CLAYEY (SC) From TH - 2 AT 9 FEET TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. FC11079.001-125 GRAVEL 1 % SAND SILT & CLAY 42 % LIQUID LIMIT 24 % PLASTICITY INDEX 57 10% Gradation Test Results FIGURE A-1 HYDROMETER ANALYSIS SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 "16 "10 *8 *4 3/8" 3/4" 1%" 3" 5"6" 8" 100 0 I I 90 10 I 80 20 i I Z9 70 30 z c7) co J Q a 60 40 Lu z I-. w 50 I 50 v � a ce w 40 I 60 a- 30 I 70 I 20 80 ! I I 1 10 90 I i I I 0 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 2.0 2.38 4.76 9.52 19.1 36.1 76.2 12; 52200 0.42 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sample of SAND, CLAYEY (SC) From TH - 3 AT 4 FEET GRAVEL 0 % SAND SILT & CLAY 20 % LIQUID LIMIT PLASTICITY INDEX 80 % NV % NP % HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 *16 *10 *8 *4 3/8" 3/4" 1/:" 3" 5" 6" 8'0 100 I 10 90 80 I 20 i f 70 30 O Lu z ii)z co 60 40 w a ce U 50 50 w w w ce a 40 60 a I I 30 70 20 80 I I 10 90 0 I�� I �� 100 001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 210 2.38 4.76 9.52 19.1 36.1 76.2 127 200 0.42 152 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, SLIGHTLY CLAYEY (SP -SC) From TH - 4 AT 9 FEET TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. FC11079.001-125 GRAVEL 0 % SAND SILT & CLAY 10 % LIQUID LIMIT NV % PLASTICITY INDEX 90 % NP % Gradation Test Results FIGURE A-2 HYDROMETER ANALYSIS SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 "16 "10 *8 *4 3/8" 3/4" 1%" 3" 5"6" 8" 100 0 I 90 10 I 1 80 20 I 70 z 30 z (7) � J Q a 60 40 Lu z I -.z wo50 I 50 v a0 40 I Lu 60 a- 30 I 70 20 I 80 I i 1 10 90 I i A I 0 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 2.0 2.38 4.76 9.52 19.1 36.1 76.2 12; 52200 0.42 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, CLAYEY (SC) Fro m TH - 4 AT 14 FEET GRAVEL 0 % SAND SILT & CLAY 14 % LIQUID LIMIT PLASTICITY INDEX 86 % NV % NP % HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 *16 *10 *8 *4 3/8" 3/4" 1/:" 3" 5" 6" 8'0 100 10 90 I 20 80 I z 70 30 0 z 60 a 40 ce z U 50 z 50ce w10 w a ce w 40 60 G- 30 70 20 80 I I 10 90 0 I�� I �� 100 001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 210 2.38 4.76 9.52 19.1 36.1 76.2 127 200 0.42 152 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, CLAYEY (SC) From TH - 5 AT 19 FEET TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. FC11079.001-125 GRAVEL 0 % SAND SILT & CLAY 46 % LIQUID LIMIT 28 % PLASTICITY INDEX 54 % 14 % Gradation Test Results FIGURE A-3 HYDROMETER ANALYSIS SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 "16 "10 *8 *4 3/8" 3/4" 1%" 3" 5"6" 8" 100 0 90 10 80 20 z7030 o zc7)QLu coa 60 ! 40zz w50 f a50 v wwa4060 a3070 2080 1090I i I 0 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 2.0 2.38 4.76 9.52 19.1 36.1 76.2 12; 52200 0.42 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, SLIGHTLY CLAYEY (SP -SC) Fro m TH - 6 AT 9 FEET GRAVEL 0 % SAND 94 % SILT & CLAY 6 % LIQUID LIMIT PLASTICITY INDEX NV % NP HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 *16 *10 *8 *4 3/8" 3/4" 1/:" 3" 5" 6" 8'0 100 I I 10 90 80 20 i f z 70 30 O z th co a 60 40 w a a z w 50 z 50 w c v w ce a 40 w 60 G- 30 70 20 80 I I 10 90 0 I�� I �� 100 001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 210 2.38 4.76 9.52 19.1 36.1 76.2 127 200 0.42 152 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, SLIGHTLY CLAYEY (SP -SC) Fro m TH - 7 AT 14 FEET TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. FC11079.001-125 GRAVEL 0 % SAND SILT & CLAY 9 % LIQUID LIMIT NV % PLASTICITY INDEX 91 % NP % Gradation Test Results FIGURE A-4 Shear Strength by Direct Shear (Small Shear Box) iZ L E INTERNATIONAL Client TRC Companies Lab Ref Project Kersey Sand Mine Job FC11079.001 Borehole TH-1 Sample 3.5'-5' Test Summary Reference A B C Normal Stress 6.94 psi 13.89 psi 20.83 psi Peak Strength 3.72 psi 9.18 psi 11.78 psi Residual Stress N/A N/A N/A Rate of Shear Displacement Stage 1: 0.029000in/min Stage 1: 0.029000in/min Stage 1: 0.029000in/min Final Height 0.9856 in 0.9887 in 0.9743 in Sample Area 4.90873 in2 4.90873 in2 4.90873 in2 Maximum Shear Stress vs Normal Stress Peak Shear Stress psi 12.87-:- - 12.00 • Peak • 11.00 Angle of Shear Resistance 10.00 - 30.13 I Degrees 9.00= 8.1)0 Cohesion _ 10.17 Ipsi 7.00 6.00 _ 5.00 4.00 3.00 _ - • 2.00 1.00 -0.61 -, i I I t t 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 21.87 Normal Stress psi ELE International Page I of I FIGURE A-5 Shear Strength by Direct Shear (Small Shear Box) � L E hill INTERNATIONAL Client TRC Companies Lab Ref Project Kersey Sand Mine Job FC11079.001 Borehole TH-4 Sample 8.5'-10' Test Summary Reference A B C Normal Stress 6.94 psi 13.89 psi 20.83 psi Peak Strength 4.00 psi 6.97 psi 11.65 psi Residual Stress N/A N/A N/A Rate of Shear Displacement Stage 1: 0.029000in/min Stage 1: 0.029000in/min Stage 1: 0.029000in/min Final Height 0.9835 in 0.9770 in 0.9802 in Sample Area 4.90873 in2 4.90873 in2 4.90873 in2 Maximum Shear Stress vs Normal Stress Peak Shear Stress psi 12,24 11.00_ • �'- Peak • - Angle of Shear Resistanc 10.00 9,00 28,83 Degrees _ 8.00 Cohesion 7.007: I-0.10 I psi 6,00 5.00 - 4.00 3.00 _ - • 2.00 _ 1.00 0.00 _ -0.69=, _ �- , , , , 0.00 2.� 4,00 6.00 8.00 10.00 12.00 14,00 16.00 18.00 20.00 21,87 Normal Stress psi ELE International Page 1 of 1 FIGURE A-6 Shear Strength by Direct Shear (Small Shear Box) 0 L INTERNATIONAL Client TRC Companies Lab Ref Project Kersey Sand Mine Job FC11079.001 Borehole TH-7 Sample 13.5'-15' Test Summary Reference A B C Normal Stress 6.94 psi 13.89 psi 20.83 psi Peak Strength 3.15 psi 7.80 psi 12.59 psi Residual Stress N/A N/A N/A Rate of Shear Displacement Stage 1: 0.029000in/min Stage 1: 0.029000in/min Stage 1: 0.029000in/min Final Height 0.9852 in 0.9724 in 0.9872 in Sample Area 4.90873 in2 4.90873 in2 4.90873 in2 Maximum Shear Stress vs Normal Stress Peak Shear Stress psi 13.307 • 12.00 Peak Angle of Shear Resistance 10.00 _ �- 34.20 Degrees 8,00 Cohesion - -1.59 psi 6.00 4.00 2.00 0.00 -2.30-, 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 21.87 Normal Stress psi ELE International Page I of I FIGURE A-7 TABLE A -I SUMMARY OF LABORATORY TESTING LOT BLOCK DEPTH (FEET) MOISTURE CONTENT (%) DRY DENSITY (PCF) ATTERBERG LIMITS PASSING NO. 200 SIEVE (%) DESCRIPTION LIQUID LIMIT PLASTICITY INDEX TH 1 4 3.0 108 NV NP 18 SAND, CLAYEY (SC) TH 2 9 7.5 125 24 10 42 SAND, CLAYEY (SC) TH 3 4 3.5 NV NP 20 SAND, CLAYEY (SC) TH 4 9 3.0 NV NP 10 SAND, SLIGHTLY CLAYEY (SP -SC) TH 4 14 4.2 103 NV NP 14 SAND, CLAYEY (SC) TH 5 19 15.7 114 28 14 46 SAND, CLAYEY (SC) TH 6 9 2.1 NV NP 6 SAND, SLIGHTLY CLAYEY (SP -SC) TH 7 14 4.5 NV NP 9 SAND, SLIGHTLY CLAYEY (SP -SC) *NEGATIVE VALUE INDICATES COMPRESSION. TRC COMPANIES KERSEY SAND MINE CTLIT PROJECT NO. FC11079.001-125 Page 1 of 1 Geotechnical Stability Report — Kersey Mine May 24, 2024 Kersey, Colorado Attachment C: Slope Stability Analysis h‘i TRC O 1.2 Material Name Color Unit Weight (Ibs/ft3) Strength Type Cohesion (psf) Phi (°) Clayey Sand 120 Mohr -Coulomb 25 28 Sandstone 130 Mohr -Coulomb 5000 35 N O O o, Method Name Min FS Bishop simplified 1.2 o Janbu simplified 1.2 Ki -.-- • ••ii�iiii�i•iiiii♦i i♦♦iiiiii♦iiiiiiiiiii• ♦!i!!i!♦iliiiiiiiii!!i!♦i♦ ....•♦O•♦♦♦i♦!♦i♦!♦i♦i♦•ii♦i♦♦♦i♦•••:+:♦ ••♦!♦i♦♦♦!♦O•♦!♦i♦ ♦ ♦ i ♦ - ♦!♦♦♦iiiiliiliililiiliiiiliiliiii♦i �.^.,u ♦!♦i♦itii!!i!♦iii♦♦♦♦♦!ii!!i!♦liii♦i♦s• !♦♦i♦i♦♦i♦♦i♦•iii♦♦♦♦i♦♦•i•♦♦♦♦♦!♦♦!♦♦♦♦°•°•°•i♦• :'♦•!•♦•♦•i•♦•iii♦i•♦•!•i•♦•!•♦•iiiii•♦•ii•♦•i•♦•!•i•♦•!•♦•♦•i•♦•�•♦•♦•♦•i•♦•i•♦•i•i•♦�! •f•♦•!•♦•♦•!•!•i•!•♦•♦•♦•i•!•!•iii•••♦•♦•i•!•♦•!•♦•♦•♦•i•!•!•iii•••♦•♦•i• ♦i•OOOiiiiiiii♦i f♦•♦•i♦♦•ii•!•♦!!i!•ii♦•.♦!i.•ii!•!•i♦♦•!•i•!•♦!!•♦•ii♦•!!ii!•ii!!♦•i•♦•!•i•!•♦!!i!•ii♦•.♦!i.•ii!•!•i♦♦•!•i•1 •••iiiiiii♦♦•iiiiiii♦ ♦ii iiiiiiiiiiii.% ,�♦••iiiiiii♦iiiiiiiiiii•iiii♦iiiiiii♦iiii♦iiiiii♦ -♦!ii!♦iiili!♦♦i♦!!♦♦ii!♦♦♦i♦♦♦♦♦!♦♦!♦♦♦!♦♦11!♦i♦!♦♦•i•♦•♦ °�i!♦ii!♦!♦!i♦ m ♦!f! its • t s ��♦♦i•�t :•P i•• 'e'i•♦iiiiiiiiii♦i4iiif A..t ee QfyiF. ♦ I, ^, ii♦♦♦•♦ii♦ sissi!♦♦ii♦ii♦♦ ifs•♦ O 4444:4•::+:444.•-. i ♦•� ° r I -50 -25 0 25 50 75 100 125 150 175 200 225. A535891 1� Project -Colorado Sand_Kersey Mine Group Slope 2H:1V ScenarioMaster Scenario Drawn By NMA Company TRC Companies SLIDEINTERPRET 9.039 Date 05-13-2024 Fie Name Kes Mine.slmd �- 1.1 ► 0.0643 N N- ilfrm _ Method Name Min FS Bishop simplified 1.1 = Janbu simplified 1.0 O 0— N r �— 2 cv - - 0- •••••••••••••••••• ••iiiiiiiiiiiiiiiiiiiiiiiiiiiiiii• •iiiO•i•iiiiiiiiiiiiiiiiiiiiii �.�.�.�.��.�.�.��.��.�.�.�.�.�.�.�.�Oii��iiiiiiiiiiiiii iiiiiiii•••••iiiiiS•isi.��iS. ii'i'i'iii'i'•'i'isi i�•i'i'i'i••'s'�'•'i'i'ii'i'i•'a•i'i•i ii i�•ii'iW?+�0�� ••iiii• • ••i•iii•si*iii•••••i••�aiiiiiiiiiiiiiiiiiiiiiiO". 1 • • • • • • • • • • • • • • • • • • �•��ti•�� !.•iiiiiiiiiiiiiiiiiiiiiiiiii•. �`.. *: ••i• -25 0 25 50 75 100 125 150 175 200 225 25( Project Mine 535891 -Colorado Sand,,,,, illiN LIDEIMERPREf 9.034 RC_Kersey Group Slope 2H:lV Scenario2H: iV - Pseudo -Static Drawn By NMA Company TRC Companies DateOS-13-2024 File Name Kesry_Mine.slmd O to N 1.8 Material Name Color Unit Weight (Ibs/ ft3) Strength Type Cohesion (PA Phi 11 o Clayey Sand u 120 Mohr - Coulomb 25 28 Sandstone ■ 130 Mohr - Coulomb 5000 35 O to O O Method Name Min FS Bishop simplified 1.8 Janbu simplified 1.7 O 3 - o- - .••O❖•••••0•••.00•.0❖.'. •i'i'i'i'i'i'ii'i'i'�'�'i'i'i`ii'i'i'i'i'i'ii'i'�'�'�'�'i`�'�'i'i'�'i's'i'i'ii'i'i'i'i�`�'� •�•�•�•�•�•�.�. ••.'.;•.❖•❖O.❖.•.lO......;.�S�.M❖•❖•❖•••❖.❖•❖•❖.••❖.❖.•.9•••. 1 � •.... • • -100 -50 0 50 100 150 200 250 300 350 AN ii„,,, Project 535891 -Colorado Sand_Kersey Mine Group Slope 3H:1V ScenarioMaster Scenario Drawn By NMA Company TRC Companies SLIDEINTERPRET 9.039 Date 05-13-2024 Fie Name Kes Mine.slmd �- o o N O �n- 0 O O - Q 3 1 r.-: ii so•.000•. 0.0643 1.5 ll ... - Method Name Min FS Bishop simplified 1.5 Janbu simplified 1.4 ♦.............♦.. OO•rO�OO••OOOO•r.O'.:•:.:: iiiiiiiiiii•�•••�•i•i•iii ....•.r�..,rroo•yti000•.t.�:•.o. .a ...♦ i'.•.O•.'.•ri•�iOO❖..'.-+-.-: ii iiiiii•�•••�•ii•%:�:,:�:�:•iiai�i -100 -50 0 50 100 150 200 250 300 350 AIN ii„,,, LIDEINTERPRET Project 535891 -Colorado Sand_Kersey Mine 9.034 RCGroup Slope 3H:lV Scenarro 3H: iV - Pseudo -Static Drawn By NMA Company TRC Companies DateOS-13-2024 F//2 Name Kesry_Mine.slmd O ut— N o N - O v�— O O O '° - - 1 - ., 1.5 1 Material Name Color unit weight (Ibs/ ft3) Strength Type Cohesion (psi) Phi (°) Clayey Sand r— 120 Mohr - Coulomb 25 28 Sandstone ■ 130 Mohr - Coulomb 5000 35 ® 2.5 Method Name Min FS Bishop simplified 1.5 Janbu simplified 1.5 OO•..x.. .'::':°:•:O J: � ::'O:°:•:°:':•:':':❖•O'.OOO':O°.'.'O.•...... �•�•�.�.�.�•�.�.��.�•�.�•��.��•�•�•�.�.�•�.�.��.��.�..�. • ❖.•.OO••••O., 'i'iiii•�'i•�'�•ii'iiii*i•i�i�ii�i'i�ii�ii•ii'iii' �ii'i'i�iiii•.•" -50 0 50 100 150 200 250 300 AN i,,,,,, LIDEINTERPRET RCGroup Project 535891 -Colorado Sand_Kersey Mine 9.034 Slope 2.5H:iV Scenarro Master Scenario Drawn By NMA Company TRC Companies DateOS-13-2024 File Name Kesry_Mine.slmd O N 1.3 0.0643 O O N O L6 iiito Method Name Min FS Bishop simplified 1.3 Janbu simplified 1.2 O O O xxx -100 -50 0 50 100 150 200 250 300 Project 535891 -Colorado Sand_Kersey Mine h% ,,,,,,,, LIDEINTERPRET 9.034 RCGroup Slope 2.5H:iV Scenarro 2.5H:1V - Pseudo -Static Drawn By NMA Company TRC Companies DateOS-13-2024 File Name Kesry_Mine.slmd Exhibit J Page 1 EXHIBIT J VEGETATION INFORMATION Per Rule 6.4.10 -- Vegetation Information: (1) The Operator/Applicant shall include in this Exhibit a narrative of the following items: (a) A description of present vegetation types, which include quantitative estimates of cover and height for the principal species in each life form represented (Le., trees, tall shrubs, low shrubs, grasses, forbs); The Permit Area and surrounding area are comprised of relatively flat to gently rolling grassland, with elevations ranging from approximately 4,600 ft. above mean sea level (amsl) to 4,790 ft. amsl. The Permit Area is located within the High Plains Level III Ecoregion, classified further as Flat to Rolling Plains within that Ecoregion (Chapman et al., 2006). The High Plains Ecoregion is characterized by rolling plains and grasslands situated at a relatively high elevation. Native vegetation in this Ecoregion consists of short -grass or mixed -grass prairie species, scrub, and some sagebrush steppe. Consistent with the aerial imagery, approximately 3,760 acres (approximately 93 percent) of land cover within the Study Area is classified as grassland herbaceous by the National Land Cover Database. Approximately 230 acres (6 percent) are classified as shrub/scrub. The remaining approximately 30 acres (1 percent) are classified as developed open space; developed low intensity; and developed medium intensity. Vegetation field investigations were conducted over the extent of the Permit Area on October 16 and October 20, 2023, and were done concurrently with wetland delineations. Field crews used GPS units to navigate to the center of each quarter -section to establish sample vegetation plots. Species composition and percent cover were recorded and photographed within 5 -foot radius plots for herbaceous species and 30 -foot radius plots for tree and shrub cover estimates. Refer to the Vegetation Survey Plots map provided in Exhibit J-1. Vegetation across the Site is characterized as grassland with several gravel well pads and roadways interspersed throughout the Site. Herbaceous species comprised of approximately 77 percent cover of the Permit Area with the remaining area shrubs (5 percent) and bare ground (18 percent). Trees were absent within the Permit Area. Four non-native species (cheatgrass [Bromus tectorum], burning brush [Bassia scoparia], foxtail millet [Setaria italica], and Russian thistle [Salsola tragus]) comprised approximately 62 percent of the total herbaceous cover. Russian thistle represented over 50 percent cover of the herbaceous species on Site and was present in each vegetated herbaceous plot. The Permit Area is comprised of a relatively homogenous landscape; no wetlands and one former stock pond feature were identified within the Permit Area. Saltgrass (Distichlis spicata) was present in the National Wetlands Inventory mapped wetlands, but hydric soil indicators were absent and hydrologic indicators were only marginally present. One 0.38 -acre manmade stock pond was delineated along an ordinary high-water mark consisting of a defined bank situated above mud cracks. The stock pond contained no water at the time of the survey, and vegetation was mostly absent except for intermittent patches of saltgrass and kochia (Bassia scoparia) along and above the ordinary high water mark bench. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit J Page 2 A summary of the vegetation species identified at each sample point is provided in Table J-1: Vegetation Species at Sampling Points. Refer to the data forms recording observations, sampling points, and photographs provided in Exhibit J-2. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit J Page 3 TABLE J-1: VEGETATION SPECIES AT SAMPLE POINT LOCATIONS Percent Cover at Sample Plots Species 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Shrub Stratem Sand sagebrush (Artemisia filifolia) 1 1 1 8 15 10 10 18 2 25 Silver sagebrush (Artemisia cana) 10 1 Soapweed yucca (Yucca glauca) 2 1 5 1 1 1 2 1 Shrubs Total Cover 12 0 2 5 1 0 1 1 0 0 1 8 0 0 16 11 2 0 10 19 0 0 2 25 0 0 Herbaceous Stratem Cheatgrass (Bromus tectorum) 20 15 5 25 Blue grama (Bouteloua gracilis) 10 30 35 5 15 5 20 10 30 5 30 30 2 10 5 Bumingbush (Bassia scoparia) 8 10 20 10 5 20 15 2 20 35 10 Foxtail millet (Setaria italica) 3 Green needlegrass (Nassella viridula) 3 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit J Page 4 Percent Cover at Sample Plots Species 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Idaho fescue (Festuca idahoensis) 2 5 2 Indian ricegrass (Achnatherum hymenoides) 5 35 3 Muttongrass (Poa fendleriana) 1 8 Needle and thread (Hesperostipa comata) 10 10 3 40 5 20 2 5 Prairie sandreed (Calamovilfa longifolia) 2 10 5 20 15 5 3 10 5 5 20 Puple lvegrass (Eragrostis spectabilis) 8 5 Purple threeawn (Aristides purpurea) 3 8 10 5 3 Rough bentgrass (Agrostis scabra) 30 5 5 Russian thistle (Salsolatragus) 30 50 75 20 60 25 35 25 30 60 50 60 45 20 40 40 40 5 20 20 55 94 20 30 40 Saltgrass (Distichlis spicata) 1 Sandberg bluegrass (Poa secunda) 2 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit J Page 5 Percent Cover at Sample Plots Species 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Sand bluestem (Andropogon hallii) 5 15 5 5 Sand dropseed (Sporobolus cryptandrus) 15 20 20 15 3 5 Thickspike wheatgrass (Elymus lanceolatus) 25 Westem wheatgrass (Pascopyrum smithii) 5 Total Cover 100 95 98 75 95 85 60 63 85 100 71 89 102 40 70 58 100 40 52 70 84 117 47 60 0 80 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit J Page 6 (b) The relationship of present vegetation types to soil types, or alternatively, the information may be presented on a map; and, Discussion pertaining to the relationship between present vegetation types and soil types present within the Permit Area is provided in the foregoing Item (a), and to a greater level of detail within Exhibit I: Soils Information. Refer also to Exhibit C-3: Affected Area - Vegetation Mapping and Exhibit C-4: Affected Area - Soils Mapping, respectively, for aerial imagery and mapping units depicting the vegetation and soils (and topographic) correlations. (c) Estimates of average annual production for hay meadows and croplands and carrying capacity for range lands on or in the vicinity of the affected land, if the choice of reclamation is for range or agriculture. Rangeland as well as oil and gas production are the current and post -mining land uses. Based on the Site description in Item la of this exhibit and NRCS-USDA web soil survey data the Permit Area can be expected to produce 7,599,310 pounds of total forage within a normal year. During a normal year, the estimated carrying capacity is on the order of 282 (1,400 -pound) cow -calf pairs, utilizing the standard Animal Unit Equivalents (AUE) of one 1,000 lb. cow equal to 1 AUE and one 1,400 lb. cow -calf pair equal to 1.4 AUE. A more detailed discussion supporting this carrying capacity analysis is provided in Exhibit J-3: Vegetation Production and Carrying Capacity Analysis. (2) The Operator/Applicant shall show the relation of the types of vegetation to existing topography on a map in Exhibit C. In providing such information, the Operator/Applicant may want to contact the local Soil Conservation District. Refer to Exhibit C-3: Affected Area - Vegetation Mapping for an aerial image/topographical depiction of vegetation types across the full extent of the Kersey Mine Permit Area. References Chapman, S.S., Griffith, G.E., Omernik, J.M., Price, A.B., Freeouf, J., and Schrupp, D.L. (2006). Ecoregions of Colorado: Reston, Virginia. U.S. Geological Survey (map SAN scale 1:1,200,000). Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit J Page 7 EXHIBIT J-1 VEGETATION SURVEY PLOTS MAP Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 LAYOUT NAME: EXHIBIT J-1 VEGETATION SURVEY PLOTS PROJECT: (O) PROJECT AREA j _j SURVEY GRID o SURVEY POINT BASE MAP: ESRI "WORLD IMAGERY"BASEMAP DATA SOURCES: TRC, PARCELS WELD COUNTY ASSESSOR 0 1,000 2,000 v FEET 1:30,000 1" = 2,500' COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO TITLE: VEGETATION SURVEY PLOTS Greeley JEl DRAWN BY: J.STRONA PROJ. NO.: 535891 CHECKED BY: B. TRACY APPROVED BY: A. LAARTZ DATE: JUNE 2024 EXHIBIT J-1 <i Tr2C 526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO_KERSEY MINE Exhibit J Page 8 EXHIBIT J-2 DATA FORMS Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 CO Vegetation Survey 8972f80b-e165-4265-b946-f0a53d876246 CO Vegetation Survey Vegetation survey for Colorado 1, Project W 1112/2023, 4:38:56 PM UTC • Google CREATED Q 10/16/2023, 3:30:55 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 4:38:56 PM UTC • by Amy Laartz LOCATION 40.437679, -104.427466 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 6 11/2/2023, 9:07:49 PM UTC CO Vegetation Survey 8972f80b-e165-4265-b946-f0a53d876246 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 09:30 Amy Laartz I Trees IShrubs (2 Items) Shrubs - 1. 1 record 1 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) ARCA13, Asteraceae, silver sagebrush Artemisia cana (ARCA13, silver sagebrush) 10 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 6 11/2/2023, 9:07:49 PM UTC CO Vegetation Survey 8972f80b-e165-4265-b946-f0a53d876246 Shrub Photos Shrubs - 2. 1 record Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (5 Items) YUGL, Agavaceae, soapweed yucca Yucca glauca (YUGL, soapweed yucca) 2 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) AGSC5, Poaceae, rough bentgrass Agrostis scabra (AGSC5, rough bentgrass) 30 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 6 11/2/2023, 9:07:49 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey 8972f80b-e165-4265-b946-f0a53d876246 Herb Photos Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BRTE, Poaceae, cheatgrass Bromus tectorum (BRTE, cheatgrass) 20 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 10 I% TRC Environmental Corp. ,AIr 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 6 11/2/2023, 9:07:49 PM UTC Fulcrum v,+/ f VL:BUMAPP.COM CO Vegetation Survey 8972f80b-e165-4265-b946-f0a53d876246 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos HECO26, Poaceae, needle and thread Hesperostipa comata (HECO26, needle and thread) 10 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 30 Total Percentage of Trees Total Percentage of Shrubs Total Percentage of Herbs 0 12 100 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 5 of 6 11/2/2023, 9:07:49 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey 8972f80b-e165-4265-b946-f0a53d876246 Total Percent Cover 112 IPHOTOS (1 Item) PHOTOS -1. Photo ID Photo Type Photo Direction Photo Comment Photo IWEATHER Get Weather E Weather Summary Additional Observations Wildlife Observations/Habitat Attachments TRC Environmental Corp. ff1200 Wall Street West Lyndhurst, NJ 07071 Page 6 of 6 11/2/2023, 9:07:49 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey 81 f81 e45 -34f4-463 7-810b- 7e8ae494e5ca CO Vegetation Survey Vegetation survey for Colorado 2, Project W 10116/2023, 5:31:21 PM UTC • Google CREATED Q 10/16/2023, 3:58:13 PM UTC Q by Amy Laartz UPDATED O 10/16/2023, 5:31:21 PM UTC • by Amy Laartz LOCATION 40.437678, -104.418029 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 5 11/2/2023, 9:10:41 PM UTC CO Vegetation Survey 81f81e45-34f4-4637-810b-7e8ae494e5ca IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 09:58 Amy Laartz I Trees IShrubs IHerbs (5 Items) Herbs - 1. 1 record 2 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 50 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 30 Herbs - 3. 1 record Select Herb HECOC8, Poaceae, needle and thread Plant Name [Herb] Hesperostipa comata ssp. comata (HECOC8, needle and thread) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 5 11/2/2023, 9:10:41 PM UTC CO Vegetation Survey 81f81e45-34f4-4637-810b-7e8ae494e5ca Percentage Cover [Herb] Herb (Notes) Herb Photos 10 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos FEID, Poaceae, Idaho fescue Festuca idahoensis (FEID, Idaho fescue) 2 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) NAVI4, Poaceae, green needlegrass Nassella viridula (NAVI4, green needlegrass) 3 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 5 11/2/2023, 9:10:41 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey 81f81e45-34f4-4637-810b-7e8ae494e5ca Herb Photos Total Percentage of Trees Total Percentage of Shrubs Total Percentage of Herbs Total Percent Cover 0 0 95 95 IPHOTOS (1 Item) PHOTOS -1. Photo ID Photo Type Photo Direction Photo Comment E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 5 11/2/2023, 9:10:41 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey 81f81e45-34f4-4637-810b-7e8ae494e5ca Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 5 of 5 11/2/2023, 9:10:41 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey d388 766c-4 fc2-481 b -b d37 -062e3981 a 786 CO Vegetation Survey Vegetation survey for Colorado 3, Project W 10116/2023, 6:15:05 PM UTC • Google CREATED Q 10/16/2023, 6:12:49 PM UTC Q by Amy Laartz UPDATED O 10/16/2023, 6:15:05 PM UTC • by Amy Laartz LOCATION 40.432225, -104.427447 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:11:18 PM UTC CO Vegetation Survey d388766c-4fc2-481b-bd37-062e3981a786 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 12:12 Amy Laartz I Trees IShrubs (2 Items) Shrubs - 1. 1 record 3 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos YUGL, Agavaceae, soapweed yucca Yucca glauca (YUGL, soapweed yucca) 1 Shrubs - 2. 1 record Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (3 Items) ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 1 Herbs - 1. 1 record Select Herb SALSO, Chenopodiaceae, Russian thistle Plant Name [Herb] Salsola L. (SALSO, Russian thistle) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:11:18 PM UTC CO Vegetation Survey d388766c-4fc2-481b-bd37-062e3981a786 Percentage Cover [Herb] Herb (Notes) Herb Photos 75 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BRTE, Poaceae, cheatgrass Bromus tectorum (BRTE, cheatgrass) 15 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BASC5, Chenopodiaceae, burningbush Bassia scoparia (BASC5, burningbush) 8 Total Percentage of Trees 0 Total Percentage of Shrubs 2 Total Percentage of Herbs 98 Total Percent Cover 100 IPHOTOS (1 Item) PHOTOS -1. Photo ID Photo Type Photo Direction Photo Comment E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:11:18 PM UTC CO Vegetation Survey d388766c-4fc2-481b-bd37-062e3981a786 Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:11:18 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey fc5cf4db-690e-4185-806c-2a854498cdbf CO Vegetation Survey Vegetation survey for Colorado 4, Project W 1111/2023, 10:36:38 PM UTC f Google CREATED Q 10/16/2023, 4:21:14 PM UTC Q by Amy Laartz UPDATED O 11/1/2023, 10:36:38 PM UTC • by Amy Laartz LOCATION 40.432241, -104.417988 Map data O2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 7 11/2/2023, 9:11:50 PM UTC CO Vegetation Survey fc5cf4db-690e-4185-806c-2a854498cdbf IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 10:21 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 4 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (7 Items) YUGL, Agavaceae, soapweed yucca Yucca glauca (YUGL, soapweed yucca) 5 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 35 Herbs - 2. 1 record Select Herb BASC5, Chenopodiaceae, burningbush Plant Name [Herb] Bassia scoparia (BASC5, burningbush) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 7 11/2/2023, 9:11:50 PM UTC CO Vegetation Survey fc5cf4db-690e-4185-806c-2a854498cdbf Percentage Cover [Herb] Herb (Notes) Herb Photos 10 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 20 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos HECO26, Poaceae, needle and thread Hesperostipa comata (HECO26, needle and thread) 3 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) POSE, Poaceae, Sandberg bluegrass Poa secunda (POSE, Sandberg bluegrass) 2 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 7 11/2/2023, 9:11:50 PM UTC CO Vegetation Survey fc5cf4db-690e-4185-806c-2a854498cdbf Herb Photos Herbs - 6. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) ARPU9, Poaceae, purple threeawn Aristida purpurea (ARPU9, purple threeawn) 3 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 7 11/2/2023, 9:11:50 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey Herb Photos fc5cf4db-690e-4185-806c-2a854498cdbf Herbs - 7. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) VIADA, Violaceae Calamovilfa longifolia 2 Correct species: Calamovilfa longifolia I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 5 of 7 11/2/2023, 9:11:50 PM UTC FulErum Y,+/ f VV NU MA Pf.COM CO Vegetation Survey Herb Photos fc5cf4db-690e-4185-806c-2a854498cdbf Total Percentage of Trees Total Percentage of Shrubs Total Percentage of Herbs Total Percent Cover 0 5 75 80 IPHOTOS (1 Item) PHOTOS -1. Photo ID Photo Type Photo Direction Photo Comment E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 6 of 7 11/2/2023, 9:11:50 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey fc5cf4db-690e-4185-806c-2a854498cdbf Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 7 of 7 11/2/2023, 9:11:50 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey be851 d41 -d71 f -4a31-8439-916953265763 CO Vegetation Survey Vegetation survey for Colorado 5, Project W 1111/2023, 10:51:36 PM UTC • Google CREATED Q 10/20/2023, 3:36:56 PM UTC Q by Amy Laartz UPDATED O 11/1/2023, 10:51:36 PM UTC • by Amy Laartz LOCATION 40.432231, -104.408496 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:12:20 PM UTC CO Vegetation Survey be851d41-d71f-4a31-8439-916953265763 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 20, 2023 09:36 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 5 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (5 Items) YUGL, Agavaceae, soapweed yucca Yucca glauca (YUGL, soapweed yucca) 1 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 60 Herbs - 2. 1 record Select Herb SPCR, Poaceae, sand dropseed Plant Name [Herb] IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Sporobolus cryptandrus (SPCR, sand dropseed) Page 2 of 4 11/2/2023, 9:12:20 PM UTC CO Vegetation Survey be851d41-d71f-4a31-8439-916953265763 Percentage Cover [Herb] Herb (Notes) Herb Photos 15 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 5 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos CALO, Poaceae, prairie sandreed Calamovilfa longifolia (CALO, prairie sandreed) 10 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos PASM, Poaceae, western wheatgrass Pascopyrum smithii (PASM, western wheatgrass) 5 Total Percentage of Trees 0 Total Percentage of Shrubs 1 Total Percentage of Herbs 95 Total Percent Cover 96 IPHOTOS (1 Item) PHOTOS - 1. IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:12:20 PM UTC CO Vegetation Survey Photo ID Photo Type Photo Direction Photo Comment Photo IWEATHER Get Weather be851 d41 -d71 f -4a31-8439-916953265763 E Weather Summary Additional Observations Wildlife Observations/Habitat Attachments TRC Environmental Corp. Ar mr1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:12:20 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey 9d7e9804-d756-4ae1-8d7a-63eedb564e38 CO Vegetation Survey Vegetation survey for Colorado 6, Project W 1112/2023, 5:02:45 PM UTC • Google CREATED Q 10/20/2023, 4:23:44 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 5:02:45 PM UTC • by Amy Laartz LOCATION 40.432251, -104.399033 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:12:57 PM UTC CO Vegetation Survey 9d7e9804-d756-4ae1-8d7a-63eedb564e38 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 20, 2023 10:23 Amy Laartz I Trees IShrubs IHerbs (4 Items) Herbs - 1. 1 record 6 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 25 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos HECO26, Poaceae, needle and thread Hesperostipa comata (HECO26, needle and thread) 40 Herbs - 3. 1 record Select Herb BOGR2, Poaceae, blue grama Plant Name [Herb] Bouteloua gracilis (BOGR2, blue grama) I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:12:57 PM UTC CO Vegetation Survey 9d7e9804-d756-4ae1-8d7a-63eedb564e38 Percentage Cover [Herb] Herb (Notes) Herb Photos 15 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos CALO, Poaceae, prairie sandreed Calamovilfa longifolia (CALO, prairie sandreed) 5 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 85 Total Percent Cover 85 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:12:57 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey 9d7e9804-d756-4ae1-8d7a-63eedb564e38 IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:12:57 PM UTC CO Vegetation Survey b17c2754-5de5-482c-92bc-7301 c71 a 6767 CO Vegetation Survey Vegetation survey for Colorado 7, Project W 10116/2023, 6:01:15 PM UTC • Google CREATED Q 10/16/2023, 5:58:03 PM UTC Q by Amy Laartz UPDATED O 10/16/2023, 6:01:15 PM UTC • by Amy Laartz LOCATION 40.424973, -104.427372 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:14:23 PM UTC CO Vegetation Survey b17c2754-5de5-482c-92bc-7301c71a6767 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 11:58 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 7 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (3 Items) ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 1 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 35 Herbs - 2. 1 record Select Herb BASC5, Chenopodiaceae, burningbush Plant Name [Herb] Bassia scoparia (BASC5, burningbush) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:14:23 PM UTC CO Vegetation Survey b17c2754-5de5-482c-92bc-7301c71a6767 Percentage Cover [Herb] Herb (Notes) Herb Photos 20 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BRTE, Poaceae, cheatgrass Bromus tectorum (BRTE, cheatgrass) 5 Total Percentage of Trees 0 Total Percentage of Shrubs 1 Total Percentage of Herbs 60 Total Percent Cover 61 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:14:23 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey b17c2754-5de5-482c-92bc-7301c71a6767 IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:14:23 PM UTC CO Vegetation Survey 0a0c46c9-29af-4918-9245-a95a9a26e27e CO Vegetation Survey Vegetation survey for Colorado 8, Project W 1112/2023, 5:04:27 PM UTC R Google CREATED Q 10/16/2023, 5:02:00 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 5:04:27 PM UTC • by Amy Laartz LOCATION 40.424941, -104.417903 Map data ©2023 rig TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 5 11/2/2023, 9:15:12 PM UTC CO Vegetation Survey 0a0c46c9-29af-4918-9245-a95a9a26e27e IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 11:02 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 8 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (5 Items) ARCA13, Asteraceae, silver sagebrush Artemisia cana (ARCA13, silver sagebrush) 1 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) CALO, Poaceae, prairie sandreed Calamovilfa longifolia (CALO, prairie sandreed) 20 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 5 11/2/2023, 9:15:12 PM UTC CO Vegetation Survey 0a0c46c9-29af-4918-9245-a95a9a26e27e Herb Photos Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 5 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 25 I% TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 5 11/2/2023, 9:15:12 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey 0a0c46c9-29af-4918-9245-a95a9a26e27e Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ARPU9, Poaceae, purple threeawn Aristida purpurea (ARPU9, purple threeawn) 8 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ANNA, Poaceae, sand bluestem Andropogon hallii (ANNA, sand bluestem) 5 Total Percentage of Trees 0 Total Percentage of Shrubs 1 Total Percentage of Herbs 63 Total Percent Cover 64 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment NE I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 5 11/2/2023, 9:15:12 PM UTC CO Vegetation Survey 0a0c46c9-29af-4918-9245-a95a9a26e27e Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 5 of 5 11/2/2023, 9:15:12 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey 2c8c2e8a-6db 7-4ade-9bff-661593d80e04 CO Vegetation Survey Vegetation survey for Colorado 9, Project W 1112/2023, 5:05:57 PM UTC • Google CREATED Q 10/16/2023, 9:53:21 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 5:05:57 PM UTC • by Amy Laartz LOCATION 40.424940, -104.408433 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 8:20:10 PM UTC CO Vegetation Survey 2c8c2e8a-6db7-4ade-9bff-661593d80e04 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 15:53 Amy Laartz I Trees IShrubs IHerbs (5 Items) Herbs - 1. 1 record 9 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 30 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos CALO, Poaceae, prairie sandreed Calamovilfa longifolia (CALO, prairie sandreed) 15 Herbs - 3. 1 record Select Herb BOGR2, Poaceae, blue grama Plant Name [Herb] Bouteloua gracilis (BOGR2, blue grama) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 8:20:10 PM UTC CO Vegetation Survey 2c8c2e8a-6db7-4ade-9bff-661593d80e04 Percentage Cover [Herb] Herb (Notes) Herb Photos 20 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ARPU9, Poaceae, purple threeawn Aristida purpurea (ARPU9, purple threeawn) 10 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BASC5, Chenopodiaceae, burningbush Bassia scoparia (BASC5, burningbush) 10 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 85 Total Percent Cover 85 IPHOTOS (1 Item) PHOTOS -1. Photo ID Photo Type Photo Direction Photo Comment E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 8:20:10 PM UTC CO Vegetation Survey 2c8c2e8a-6db7-4ade-9bff-661593d80e04 Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 8:20:10 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey c1 d51 fe9-b554-4124-a7d1-c858b1 f3b8ca CO Vegetation Survey Vegetation survey for Colorado 10, Project W 10120/2023, 5:15:17 PM UTC • Google CREATED Q 10/20/2023, 5:11:19 PM UTC Q by Amy Laartz UPDATED O 10/20/2023, 5:15:17 PM UTC • by Amy Laartz LOCATION 40.424978, -104.398988 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:15:49 PM UTC CO Vegetation Survey c1d51fe9-b554-4124-a7d1-c858b1f3b8ca IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 20, 2023 11:11 Amy Laartz I Trees IShrubs IHerbs (5 Items) Herbs - 1. 1 record 10 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 60 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 10 Herbs - 3. 1 record Select Herb SPCR, Poaceae, sand dropseed Plant Name [Herb] Sporobolus cryptandrus (SPCR, sand dropseed) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:15:49 PM UTC CO Vegetation Survey c1d51fe9-b554-4124-a7d1-c858b1f3b8ca Percentage Cover [Herb] Herb (Notes) Herb Photos 20 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos HECO26, Poaceae, needle and thread Hesperostipa comata (HECO26, needle and thread) 5 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BASC5, Chenopodiaceae, burningbush Bassia scoparia (BASC5, burningbush) 5 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 100 Total Percent Cover 100 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:15:49 PM UTC CO Vegetation Survey c1d51fe9-b554-4124-a7d1-c858b1f3b8ca Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:15:49 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey abb4713a-668d-4f3e-88d9-34f85c62379b CO Vegetation Survey Vegetation survey for Colorado 11, Project W 10116/2023, 5:49:07 PM UTC • Google CREATED Q 10/16/2023, 5:45:55 PM UTC Q by Amy Laartz UPDATED O 10/16/2023, 5:49:07 PM UTC • by Amy Laartz LOCATION 40.417650, -104.427351 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:16:20 PM UTC CO Vegetation Survey abb4713a-668d-4f3e-88d9-34f85c62379b IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 11:45 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 11 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (3 Items) ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 1 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 50 Herbs - 2. 1 record Select Herb BASC5, Chenopodiaceae, burningbush Plant Name [Herb] Bassia scoparia (BASC5, burningbush) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:16:20 PM UTC CO Vegetation Survey abb4713a-668d-4f3e-88d9-34f85c62379b Percentage Cover [Herb] Herb (Notes) Herb Photos 20 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos DISP, Poaceae, saltgrass Distichlis spicata (DISP, saltgrass) 1 Total Percentage of Trees 0 Total Percentage of Shrubs 1 Total Percentage of Herbs 71 Total Percent Cover 72 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:16:20 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey abb4713a-668d-4f3e-88d9-34f85c62379b IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:16:20 PM UTC CO Vegetation Survey 672af04 f-4d4d-49ec-a058-f43f0819a702 CO Vegetation Survey Vegetation survey for Colorado 12, Project W 1112/2023, 10:35:05 PM UTC 1 Google CREATED Q 10/16/2023, 5:23:32 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 10:35:05 PM UTC • by Mason Powers LOCATION 40.417610, -104.417841 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 10:46:32 PM UTC CO Vegetation Survey 672af04f-4d4d-49ec-a058-f43f0819a702 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 11:23 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 12 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (6 Items) ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 8 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 60 Herbs - 2. 1 record Select Herb BASC5, Chenopodiaceae, burningbush Plant Name [Herb] Bassia scoparia (BASC5, burningbush) I L TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 10:46:32 PM UTC CO Vegetation Survey 672af04f-4d4d-49ec-a058-f43f0819a702 Percentage Cover [Herb] Herb (Notes) Herb Photos 15 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos AGSC5, Poaceae, rough bentgrass Agrostis scabra (AGSC5, rough bentgrass) 5 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ARPU9, Poaceae, purple threeawn Aristida purpurea (ARPU9, purple threeawn) 5 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SETT, Poaceae, foxtail millet Setaria italica (SETT, foxtail millet) 3 Herbs - 6. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos POFE, Poaceae, muttongrass Poa fendleriana (POFE, muttongrass) 1 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 10:46:32 PM UTC CO Vegetation Survey 672af04f-4d4d-49ec-a058-f43f0819a702 Total Percentage of Trees 0 Total Percentage of Shrubs 8 Total Percentage of Herbs 89 Total Percent Cover 97 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo IWEATHER Get Weather NE Weather Summary Additional Observations Wildlife Observations/Habitat Attachments TRC Environmental Corp. mr1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 10:46:32 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey 2e9f2d17-108c-435a-b 7b3-123d89ed1 c59 CO Vegetation Survey Vegetation survey for Colorado 13, Project W 1112/2023, 4:11:06 PM UTC • Google CREATED Q 10/20/2023, 5:34:33 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 4:11:06 PM UTC • by Amy Laartz LOCATION 40.417609, -104.408383 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:17:29 PM UTC CO Vegetation Survey 2e9f2d17-108c-435a-b7b3-123d89ed1c59 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 20, 2023 11:34 Amy Laartz I Trees IShrubs IHerbs (5 Items) Herbs - 1. 1 record 13 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 45 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 30 Herbs - 3. 1 record Select Herb CALO, Poaceae, prairie sandreed Plant Name [Herb] Calamovilfa longifolia (CALO, prairie sandreed) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:17:29 PM UTC CO Vegetation Survey 2e9f2d17-108c-435a-b7b3-123d89ed1c59 Percentage Cover [Herb] Herb (Notes) Herb Photos 5 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos HECO26, Poaceae, needle and thread Hesperostipa comata (HECO26, needle and thread) 20 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BASC5, Chenopodiaceae, burningbush Bassia scoparia (BASC5, burningbush) 2 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 102 Total Percent Cover 102 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:17:29 PM UTC CO Vegetation Survey 2e9f2d17-108c-435a-b7b3-123d89ed1c59 Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:17:29 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey 91a2502f-55db-410c-a28a-b451211aae0e CO Vegetation Survey Vegetation survey for Colorado 14, Project W 10120/2023, 5:47:39 PM UTC t CREATED Q 10/20/2023, 5:46:01 PM UTC Q by Amy Laartz UPDATED O 10/20/2023, 5:47:39 PM UTC • by Amy Laartz LOCATION 40.417647, -104.398953 Google Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 3 11/2/2023, 9:18:09 PM UTC CO Vegetation Survey 91a2502f-55db-410c-a28a-b451211aae0e IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 20, 2023 11:46 Amy Laartz I Trees IShrubs IHerbs (2 Items) Herbs - 1. 1 record 14 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BASC5, Chenopodiaceae, burningbush Bassia scoparia (BASC5, burningbush) 20 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 20 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 40 Total Percent Cover 40 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 3 11/2/2023, 9:18:09 PM UTC CO Vegetation Survey 91a2502f-55db-410c-a28a-b451211aae0e IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo IWEATHER Get Weather E Weather Summary Additional Observations Wildlife Observations/Habitat Attachments TRC Environmental Corp. mr1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 3 11/2/2023, 9:18:09 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey fb3e3152-20b8-413e-a29d-9bf1 bd3e 72ce CO Vegetation Survey Vegetation survey for Colorado 15, Project W 1112/2023, 4:15:12 PM UTC • Google CREATED Q 10/16/2023, 6:34:27 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 4:15:12 PM UTC • by Amy Laartz LOCATION 40.410297, -104.427298 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:18:57 PM UTC CO Vegetation Survey fb3e3152-20b8-413e-a29d-9bf1bd3e72ce IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 12:34 Amy Laartz I Trees IShrubs (2 Items) Shrubs - 1. 1 record 15 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 15 Shrubs - 2. 1 record Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (3 Items) YUGL, Agavaceae, soapweed yucca Yucca glauca (YUGL, soapweed yucca) 1 Herbs - 1. 1 record Select Herb SALSO, Chenopodiaceae, Russian thistle Plant Name [Herb] Salsola L. (SALSO, Russian thistle) I L TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:18:57 PM UTC CO Vegetation Survey fb3e3152-20b8-413e-a29d-9bf1bd3e72ce Percentage Cover [Herb] Herb (Notes) Herb Photos 40 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BRTE, Poaceae, cheatgrass Bromus tectorum (BRTE, cheatgrass) 25 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos AGSC5, Poaceae, rough bentgrass Agrostis scabra (AGSC5, rough bentgrass) 5 Total Percentage of Trees 0 Total Percentage of Shrubs 16 Total Percentage of Herbs 70 Total Percent Cover 86 IPHOTOS (1 Item) PHOTOS -1. Photo ID Photo Type Photo Direction Photo Comment E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:18:57 PM UTC CO Vegetation Survey fb3e3152-20b8-413e-a29d-9bf1bd3e72ce Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:18:57 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey c369a94e-9bb4-4afe-a8c8-329fb1d22512 CO Vegetation Survey Vegetation survey for Colorado 16, Project W 1112/2023, 4:16:10 PM UTC • Google CREATED Q 10/16/2023, 8:28:28 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 4:16:10 PM UTC • by Amy Laartz LOCATION 40.410272, -104.417832 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:19:40 PM UTC CO Vegetation Survey c369a94e-9bb4-4afe-a8c8-329fb1d22512 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 14:28 Amy Laartz I Trees IShrubs (2 Items) Shrubs - 1. 1 record 16 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 10 Shrubs - 2. 1 record Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (5 Items) YUGL, Agavaceae, soapweed yucca Yucca glauca (YUGL, soapweed yucca) 1 Herbs - 1. 1 record Select Herb SALSO, Chenopodiaceae, Russian thistle Plant Name [Herb] Salsola L. (SALSO, Russian thistle) I L TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:19:40 PM UTC CO Vegetation Survey c369a94e-9bb4-4afe-a8c8-329fb1d22512 Percentage Cover [Herb] Herb (Notes) Herb Photos 40 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ACHY, Poaceae, Indian ricegrass Achnatherum hymenoides (ACHY, Indian ricegrass) 5 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos CALO, Poaceae, prairie sandreed Calamovilfa longifolia (CALO, prairie sandreed) 3 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos FEID, Poaceae, Idaho fescue Festuca idahoensis (FEID, Idaho fescue) 5 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 5 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:19:40 PM UTC CO Vegetation Survey c369a94e-9bb4-4afe-a8c8-329fb1d22512 Total Percentage of Trees 0 Total Percentage of Shrubs 11 Total Percentage of Herbs 58 Total Percent Cover 69 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo E -- ,..�-!C`'R- ___ •.mss IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments r I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:19:40 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey 119535ba-c38a-4e40-af48-4e2241 e21 e7d CO Vegetation Survey Vegetation survey for Colorado 17, Project W 1112/2023, 4:17:06 PM UTC t Google CREATED Q 10/20/2023, 7:20:26 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 4:17:06 PM UTC • by Amy Laartz LOCATION 40.410262, -104.408360 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:20:37 PM UTC CO Vegetation Survey 119535ba-c38a-4e40-af48-4e2241e21e7d IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 20, 2023 13:20 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 17 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (4 Items) YUGL, Agavaceae, soapweed yucca Yucca glauca (YUGL, soapweed yucca) 2 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 40 Herbs - 2. 1 record Select Herb BOGR2, Poaceae, blue grama Plant Name [Herb] I L TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Bouteloua gracilis (BOGR2, blue grama) Page 2 of 4 11/2/2023, 9:20:37 PM UTC CO Vegetation Survey 119535ba-c38a-4e40-af48-4e2241e21e7d Percentage Cover [Herb] Herb (Notes) Herb Photos 30 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SPCR, Poaceae, sand dropseed Sporobolus cryptandrus (SPCR, sand dropseed) 20 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos CALO, Poaceae, prairie sandreed Calamovilfa longifolia (CALO, prairie sandreed) 10 Total Percentage of Trees 0 Total Percentage of Shrubs 2 Total Percentage of Herbs 100 Total Percent Cover 102 IPHOTOS (1 Item) PHOTOS -1. Photo ID Photo Type Photo Direction Photo Comment E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:20:37 PM UTC CO Vegetation Survey 119535ba-c38a-4e40-af48-4e2241e21e7d Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:20:37 PM UTC FulErum v,+/ f VL:BUMAPP.COM CO Vegetation Survey 248d04dd-234b-415e-87bc-e82d51 ab1 c3e CO Vegetation Survey Vegetation survey for Colorado 18, Project W 10120/2023, 7:10:22 PM UTC Google CREATED Q 10/20/2023, 5:53:35 PM UTC Q by Amy Laartz UPDATED O 10/20/2023, 7:10:22 PM UTC • by Amy Laartz LOCATION 40.410290, -104.398918 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 3 11/2/2023, 9:21:11 PM UTC CO Vegetation Survey 248d04dd-234b-415e-87bc-e82d51ab1c3e IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 20, 2023 11:53 Amy Laartz I Trees IShrubs IHerbs (2 Items) Herbs - 1. 1 record 18 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BASC5, Chenopodiaceae, burningbush Bassia scoparia (BASC5, burningbush) 35 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 5 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 40 Total Percent Cover 40 IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 3 11/2/2023, 9:21:11 PM UTC CO Vegetation Survey 248d04dd-234b-415e-87bc-e82d51ab1c3e IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo IWEATHER Get Weather E Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 3 11/2/2023, 9:21:11 PM UTC FulErum v,+/ f VL:BVMAPP.cOM CO Vegetation Survey a790bfe1-e0b7-4a7e-a90d-a7f3b2071f5b CO Vegetation Survey Vegetation survey for Colorado 19, Project W 10116/2023, 7:28:56 PM UTC t Google CREATED Q 10/16/2023, 7:08:18 PM UTC Q by Amy Laartz UPDATED O 10/16/2023, 7:28:56 PM UTC • by Amy Laartz LOCATION 40.402993, -104.427263 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:21:44 PM UTC CO Vegetation Survey a790bfe1-e0b7-4a7e-a90d-a7f3b2071f5b IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 13:08 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 19 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (3 Items) ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 10 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 30 Herbs - 2. 1 record Select Herb SALSO, Chenopodiaceae, Russian thistle Plant Name [Herb] Salsola L. (SALSO, Russian thistle) IIIL TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:21:44 PM UTC CO Vegetation Survey a790bfe1-e0b7-4a7e-a90d-a7f3b2071f5b Percentage Cover [Herb] Herb (Notes) Herb Photos 20 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos HECO26, Poaceae, needle and thread Hesperostipa comata (HECO26, needle and thread) 2 Total Percentage of Trees 0 Total Percentage of Shrubs 10 Total Percentage of Herbs 52 Total Percent Cover 62 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo E momplimr9 IIL TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:21:44 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey a790bfe1-e0b7-4a7e-a90d-a7f3b2071f5b IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:21:44 PM UTC CO Vegetation Survey 83841245-55c9-47f8-b8d6-8096bc18ef27 CO Vegetation Survey Vegetation survey for Colorado 20, Project W 1112/2023, 4:40:55 PM UTC f Google CREATED Q 10/16/2023, 8:14:03 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 4:40:55 PM UTC • by Amy Laartz LOCATION 40.402957, -104.417827 Map data ©2023 el TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:22:18 PM UTC CO Vegetation Survey 83841245-55c9-47f8-b8d6-8096bc18ef27 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 14:14 Amy Laartz I Trees IShrubs (2 Items) Shrubs - 1. 1 record 20 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 18 Shrubs - 2. 1 record Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (4 Items) YUGL, Agavaceae, soapweed yucca Yucca glauca (YUGL, soapweed yucca) 1 Herbs - 1. 1 record Select Herb ACHY, Poaceae, Indian ricegrass Plant Name [Herb] Achnatherum hymenoides (ACHY, Indian ricegrass) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:22:18 PM UTC CO Vegetation Survey 83841245-55c9-47f8-b8d6-8096bc18ef27 Percentage Cover [Herb] Herb (Notes) Herb Photos 35 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ANNA, Poaceae, sand bluestem Andropogon hallii (ANNA, sand bluestem) 15 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 20 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 10 Total Percentage of Trees 0 Total Percentage of Shrubs 19 Total Percentage of Herbs 80 Total Percent Cover 99 IPHOTOS (1 Item) PHOTOS -1. IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:22:18 PM UTC CO Vegetation Survey Photo ID Photo Type Photo Direction Photo Comment Photo IWEATHER Get Weather 83841245-55c9-4 7f8-b8d6-8096bc18ef2 7 E Weather Summary Additional Observations Wildlife Observations/Habitat Attachments TRC Environmental Corp. Ar mr1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:22:18 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey 85967f67-35c1-4428-b428-323b36130f54 CO Vegetation Survey Vegetation survey for Colorado 21, Project W 1112/2023, 4:42:39 PM UTC Google CREATED Q 10/20/2023, 6:47:17 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 4:42:39 PM UTC • by Amy Laartz LOCATION 40.402945, -104.408350 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:22:52 PM UTC CO Vegetation Survey 85967f67-35c1-4428-b428-323b36130f54 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 20, 2023 12:47 Amy Laartz I Trees IShrubs IHerbs (6 Items) Herbs - 1. 1 record 21 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 55 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos CALO, Poaceae, prairie sandreed Calamovilfa longifolia (CALO, prairie sandreed) 5 Herbs - 3. 1 record Select Herb SPCR, Poaceae, sand dropseed Plant Name [Herb] Sporobolus cryptandrus (SPCR, sand dropseed) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:22:52 PM UTC CO Vegetation Survey 85967f67-35c1-4428-b428-323b36130f54 Percentage Cover [Herb] Herb (Notes) Herb Photos 15 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ANNA, Poaceae, sand bluestem Andropogon hallii (ANNA, sand bluestem) 5 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos FEID, Poaceae, Idaho fescue Festuca idahoensis (FEID, Idaho fescue) 2 Herbs - 6. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 2 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 84 Total Percent Cover 84 IPHOTOS (1 Item) PHOTOS - 1. IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:22:52 PM UTC CO Vegetation Survey 85967f67-35c1-4428-b428-323b36130f54 Photo ID Photo Type Photo Direction Photo Comment Photo IWEATHER Get Weather E Weather Summary Additional Observations Wildlife Observations/Habitat Attachments TRC Environmental Corp. Ar 1200 Wall Street West Apr Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:22:52 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey c5b50c7e-905d-49a0-b9fa-8b840ca9286b CO Vegetation Survey Vegetation survey for Colorado 22, Project W 10116/2023, 9:30:57 PM UTC • Google CREATED Q 10/16/2023, 9:28:18 PM UTC Q by Amy Laartz UPDATED O 10/16/2023, 9:30:57 PM UTC • by Amy Laartz LOCATION 40.402936, -104.398916 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:23:23 PM UTC CO Vegetation Survey c5b50c7e-905d-49a0-b9fa-8b840ca9286b IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 15:28 Amy Laartz I Trees IShrubs IHerbs (4 Items) Herbs - 1. 1 record 22 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 94 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos BOGR2, Poaceae, blue grama Bouteloua gracilis (BOGR2, blue grama) 10 Herbs - 3. 1 record Select Herb BASC5, Chenopodiaceae, burningbush Plant Name [Herb] Bassia scoparia (BASC5, burningbush) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:23:23 PM UTC CO Vegetation Survey c5b50c7e-905d-49a0-b9fa-8b840ca9286b Percentage Cover [Herb] Herb (Notes) Herb Photos 10 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ARPU9, Poaceae, purple threeawn Aristida purpurea (ARPU9, purple threeawn) 3 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 117 Total Percent Cover 117 IPHOTOS (1 Item) PHOTOS -1. Photo ID Photo Type Photo Direction Photo Comment Photo E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:23:23 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey c5b50c7e-905d-49a0-b9fa-8b840ca9286b IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:23:23 PM UTC CO Vegetation Survey 8a30dfac-f329-4c4a-8c76-e118ce8e70ec CO Vegetation Survey Vegetation survey for Colorado 23, Project W 1112/2023, 4:46:29 PM UTC • Google CREATED Q 10/16/2023, 7:22:47 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 4:46:29 PM UTC • by Amy Laartz LOCATION 40.395706, -104.427259 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:24:28 PM UTC CO Vegetation Survey 8a30dfac-f329-4c4a-8c76-e118ce8e70ec IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 13:22 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 23 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (6 Items) ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 2 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos POFE, Poaceae, muttongrass Poa fendleriana (POFE, muttongrass) 8 Herbs - 2. 1 record Select Herb SALSO, Chenopodiaceae, Russian thistle Plant Name [Herb] Salsola L. (SALSO, Russian thistle) I L TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:24:28 PM UTC CO Vegetation Survey 8a30dfac-f329-4c4a-8c76-e118ce8e70ec Percentage Cover [Herb] Herb (Notes) Herb Photos 20 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ERSP, Poaceae, purple lovegrass Eragrostis spectabilis (ERSP, purple lovegrass) 8 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ACHY, Poaceae, Indian ricegrass Achnatherum hymenoides (ACHY, Indian ricegrass) 3 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos CALO, Poaceae, prairie sandreed Calamovilfa longifolia (CALO, prairie sandreed) 5 Herbs - 6. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SPCR, Poaceae, sand dropseed Sporobolus cryptandrus (SPCR, sand dropseed) 3 I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:24:28 PM UTC CO Vegetation Survey 8a30dfac-f329-4c4a-8c76-e118ce8e70ec Total Percentage of Trees 0 Total Percentage of Shrubs 2 Total Percentage of Herbs 47 Total Percent Cover 49 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo E r "v IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments TRC Environmental Corp. mr1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:24:28 PM UTC Fulcrum *V f VI.:BUMAPP.COM CO Vegetation Survey 3cbb7f96-ce0c-4b98-82b1-d91652137d11 CO Vegetation Survey Vegetation survey for Colorado 24, Project W 10116/2023, 8:02:18 PM UTC • Google CREATED Q 10/16/2023, 7:51:35 PM UTC Q by Amy Laartz UPDATED O 10/16/2023, 8:02:18 PM UTC • by Amy Laartz LOCATION 40.395696, -104.417808 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:25:12 PM UTC CO Vegetation Survey 3cbb7f96-ce0c-4b98-82b1-d91652137d11 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 13:51 Amy Laartz I Trees IShrubs (1 Item) Shrubs - 1. 1 record 24 Select Shrub Plant Name [Shrub] Percentage Cover [Shrub] Shrub (Notes) Shrub Photos IHerbs (3 Items) ARF12, Asteraceae, sand sagebrush Artemisia filifolia (ARF12, sand sagebrush) 25 Herbs - 1. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 30 Herbs - 2. 1 record Select Herb ERSP, Poaceae, purple lovegrass Plant Name [Herb] IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Eragrostis spectabilis (ERSP, purple lovegrass) Page 2 of 4 11/2/2023, 9:25:12 PM UTC CO Vegetation Survey 3cbb7f96-ce0c-4b98-82b1-d91652137d11 Percentage Cover [Herb] Herb (Notes) Herb Photos 5 Herbs - 3. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ELLA3, Poaceae, thickspike wheatgrass Elymus lanceolatus (ELLA3, thickspike wheatgrass) 25 Total Percentage of Trees 0 Total Percentage of Shrubs 25 Total Percentage of Herbs 60 Total Percent Cover 85 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment Photo E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:25:12 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey 3cbb7f96-ce0c-4b98-82b1-d91652137d11 IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:25:12 PM UTC CO Vegetation Survey 81 f94314-19b4-4eaf-a2dd-543f4f9d6cb4 CO Vegetation Survey Vegetation survey for Colorado 25, Project W 10116/2023, 8:58:53 PM UTC Google CREATED Q 10/16/2023, 8:57:15 PM UTC Q by Amy Laartz UPDATED O 10/16/2023, 8:58:53 PM UTC • by Amy Laartz LOCATION 40.395663, -104.408344 Map data ©2023 TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 3 11/2/2023, 9:25:42 PM UTC CO Vegetation Survey 81f94314-19b4-4eaf-a2dd-543f4f9d6cb4 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. I Trees IShrubs IHerbs CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 14:57 Amy Laartz 25 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 0 Total Percent Cover 0 IPHOTOS (1 Item) PHOTOS - 1. Photo ID Photo Type Photo Direction Photo Comment E I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 3 11/2/2023, 9:25:42 PM UTC CO Vegetation Survey 81f94314-19b4-4eaf-a2dd-543f4f9d6cb4 Photo IWEATHER Get Weather Weather Summary Additional Observations Wildlife Observations/Habitat Attachments Site location on an oil pad I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 3 11/2/2023, 9:25:42 PM UTC Fulcrum wv f VI.:BUMAPP.COM CO Vegetation Survey 1fb454b5-7e88-4ef5-a1f9-810047466b40 CO Vegetation Survey Vegetation survey for Colorado 26, Project W 1112/2023, 4:49:53 PM UTC • Google CREATED Q 10/16/2023, 9:03:03 PM UTC Q by Amy Laartz UPDATED O 11/2/2023, 4:49:53 PM UTC • by Amy Laartz LOCATION 40.395659, -104.398848 Map data ©2023 iii TRC Environmental Corp. Apr 1200 Wall Street West Lyndhurst, NJ 07071 Page 1 of 4 11/2/2023, 9:26:42 PM UTC CO Vegetation Survey 1fb454b5-7e88-4ef5-a1f9-810047466b40 IOVERVIEW Select Project Client Project Name Date Time Surveyor(s) Plot No. CSC Confidential Client, Project W CSC Confidential Client Project W October 16, 2023 15:03 Amy Laartz I Trees IShrubs IHerbs (6 Items) Herbs - 1. 1 record 26 Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SALSO, Chenopodiaceae, Russian thistle Salsola L. (SALSO, Russian thistle) 40 Herbs - 2. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos CALO, Poaceae, prairie sandreed Calamovilfa longifolia (CALO, prairie sandreed) 20 Herbs - 3. 1 record Select Herb BOGR2, Poaceae, blue grama Plant Name [Herb] Bouteloua gracilis (BOGR2, blue grama) IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 2 of 4 11/2/2023, 9:26:42 PM UTC CO Vegetation Survey 1fb454b5-7e88-4ef5-a1f9-810047466b40 Percentage Cover [Herb] Herb (Notes) Herb Photos 5 Herbs - 4. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos ANNA, Poaceae, sand bluestem Andropogon hallii (ANNA, sand bluestem) 5 Herbs - 5. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos HECO26, Poaceae, needle and thread Hesperostipa comata (HECO26, needle and thread) 5 Herbs - 6. 1 record Select Herb Plant Name [Herb] Percentage Cover [Herb] Herb (Notes) Herb Photos SPCR, Poaceae, sand dropseed Sporobolus cryptandrus (SPCR, sand dropseed) 5 Total Percentage of Trees 0 Total Percentage of Shrubs 0 Total Percentage of Herbs 80 Total Percent Cover 80 IPHOTOS (1 Item) PHOTOS - 1. IX TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 3 of 4 11/2/2023, 9:26:42 PM UTC CO Vegetation Survey 1fb454b5-7e88-4ef5-a1f9-810047466b40 Photo ID Photo Type Photo Direction Photo Comment Photo IWEATHER Get Weather E Weather Summary Additional Observations Wildlife Observations/Habitat Attachments I� TRC Environmental Corp. 1200 Wall Street West Lyndhurst, NJ 07071 Page 4 of 4 11/2/2023, 9:26:42 PM UTC FulErum v,+/ f VL:BUMAPP.COM Exhibit J Page 9 EXHIBIT J-3 VEGETATION PRODUCTION AND CARRYING CAPACITY ANALYSIS Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit J Page 10 The following describes the relationship of present vegetation types to soil types, estimated average annual production for croplands, and the estimated carrying capacity for the Permit Area. This information is provided to meet regulatory requirements to establish a baseline for reclamation efforts. Methods Estimates of annual production and carry capacity were calculated utilizing various grazing studies and the U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (MRCS) web soil survey to obtain the results below. During a normal year, the estimated carrying capacity is on the order of 282 (1,400 -pound) cow -calf pairs, utilizing the standard AUE of one 1,000 lb. cow equal to 1 AUE and one 1,400 lb. cow -calf pair equal to 1.4 AUE. Initial stocking rate calculations were used for determining carrying capacity as outlined below. • Determine Total Production of Permit Area U.S. Geological Survey utilization for forage production on rangelands • Calculate Total Available Forage Total available forage= Total Production (Harvest efficiency) 0.5 Allotment Size • Determine Pounds per month intake for a 1,000 -pound animal Intake = 1,000 -pound animal 80 percent of body weight • Calculate Proper Stocking Rate: Stocking Rate = Available Forage/Pounds Eaten per month • Convert for Animal Type You Are Using with an AUE Stocking Rate/ Animal Unit Equivalent Determine Number of Animals that can be Grazed over Allotted Time Number of animals= Animal Unit month for class of livestock/Number of months on allotment Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit J Page 11 Calculation Results for Stocking Rate (1) The Soil Types table below shows forage production per acre per soil type Soil Type Pounds per acre per year of vegetation produced Acres in Permit Area Percentage of Permit Area Valent sand, 0 to 3 percent slopes 1850 1332 35.3 Valent sand, 3 to 9 percent slopes 2000 2383 63.5 Vona loamy sand, 0 to 3 percent slopes 1700 45 1.2 (2) Total available forage — 7,599,310 total amount of forage on Site 0.5 (Harvest efficiency) = 3,799,655 total pounds available forage for grazing (3) Intake of forage by cattle - 1,000 pounds (standard weight for grazing calculations) 80 percent of body weight (typical amount eaten by cattle) = 800 pounds/month of vegetation intake per animal (4) Stocking rate — 3,799,655 pounds available/800 pounds per month intake requirement = 4,749 animals per month (5) Animal unit month for class of livestock — 4,749 animals per month/1.4 animal equivalent (represents a 1,400 -pound cow -calf combo) = 3,392 animals/month (6) Number of animals per year — 3,392 animals per month/12 months = 282 animals that the Permit Area can support for 1 year of grazing. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit K Page 1 EXHIBIT K CLIMATE INFORMATION Per Rule 6.4.11 -- Climate: Provide a description of the significant climatological factors for the locality. The climate over the plains of eastern Colorado remains generally uniform across locations, characterized by abundant sunshine, limited rainfall, moderate to high wind movement, and a large daily range in temperature. About 70-80 percent of the annual precipitation falls as rain during the growing season from April to September (WRCC, 2016-2024a). The region surrounding the Kersey Mine averages an annual high temperature of 89.6°F and an annual low temperature of 13.9°F. Summer temperatures during July and August average 92°F and 89°F, respectively. Winter temperatures during January and February average 46°F and 56°F, respectively. The average annual temperature is 47.5°F. Average annual precipitation is 14.8 inches. Average annual snowfall is 38.3 inches. May is the rainiest month, averaging 2.3 inches of precipitation. March receives the most snowfall on average, with 7.8 inches, followed by December with 6.2 inches. Pan evaporation data is available from a station located about seven miles southwest of Wiggins (which is approximately 20 miles southeast of the Mine location) for the period 1960 to 1971. The average annual pan evaporation is 54.12 inches, occurring primarily during the months of: April (6.82 inches); May (8.50 inches); June (8.42 inches); July (9.97 inches); August (8.09 inches); September (5.87 inches); October (4.22 inches); and November (2.23 inches) (WRCC, 2016-2024b). The mean annual evapotranspiration for Weld County is between 31 and 40 cm per year; or 12.2 to 15.7 inches per year, yielding a ratio of evaporation to precipitation of as much as 1.09: 1. Prevailing winds are generally from the northwest and north-northwest, as demonstrated by the wind rose data depicted in Figure K-1: Wind Rose — Kersey Mine. This wind rose reflects full -year data compiled in 2023 and 2024 for an unrelated location approximately 11 miles west of the proposed Kersey Mine at 40.4356°N, 104.6319°W at the Greely-Weld County Airport; and represents the geographically closest and most recent data determined to be available by the Midwestern Regional Climate Center (MRCC). References: Midwestern Regional Climate Center (MRCC). Cli-MATE Tools — Wind Rose. 2024. Western Regional Climate Center (WRCC, 2016-2024a). Climate of Colorado: Climate of the Eastern Plains. 2016- 2024. Western Regional Climate Center (WRCC, 2016-2024b). Monthly Average Pan Evaporation: Colorado. 2016-2024. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit K Page 2 EXHIBIT K-1 WIND ROSE - KERSEY MINE' GREELEY WELD CO AP (CO) Wind Rase May 23, 2023 - May 23, 2024 Sub -Interval: Jan. 1 - Dec. 31, 0 - 23 N NNW NNE WNW WSW NW NE SW SE SSW S SSE ENE E ESE Wind Speed (mph) • 1.3-4 • 4-8 • 8-13 • 13 - 19 ✓ 19-25 • 25-32 c' 32 - 39 ✓ 39 - 47 47 - Figure K-1: Wind Rose — Kersey Mine uses data collected at the Greeley Weld CO AP, CO Hourly Station located at 40.4356°N, 104.6319°W. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit L Page 1 EXHIBIT L RECLAMATION COSTS Per Rule 6.4.12 — Reclamation Costs: (1) All information necessary to calculate the costs of reclamation must be submitted and broken down into the various major phases of reclamation. The information provided by the Operator/Applicant must be sufficient to calculate the costs of reclamation that would be incurred by the state; and, (2) The Office may request the Operator/Applicant to provide additional, reasonable data to substantiate said Operator/Applicant's estimate of the cost of reclamation for all Affected Lands. Colorado Sand Company II, LLC (CSC) herein provides the following discussion pertaining to the respective Reclamation Cost components, along with Table L-1: Reclamation Cost Estimate which details, in a tabulated format, the respective reclamation phases, the therein contained individual component (direct) costs, and a totalization of those direct costs. CSC has then added the following indirect costs to the totalized direct cost, to include the following: • Liability Insurance (2% of Direct Cost Total) • Performance Bond (1.05% of Direct Cost Total) • Job Superintendent ($8,750/month, inclusive of 40% benefits burden —for 6 -month duration) • Contractor Profit (10% of Direct Cost Total) • Engineering and Bid Preparation (4.25% of Direct Cost Total) • Reclamation Management and Administration (5% of Direct Cost Total) As detailed in Exhibit D: Mining Plan and Exhibit E: Reclamation Plan, the Kersey Mine will employ "concurrent reclamation" throughout the life -of -mine, thus minimizing outstanding reclamation obligations at the time of closure. In addition to the concurrent reclamation activities associated with annual mine blocks, CSC has also employed "advance reclamation" of certain features (as described below). The Table L-1: Reclamation Cost Estimate addresses/includes all activities associated with closure and reclamation of probable "maximum exposure" conditions that would be present at the end of life -of -mine. The term "maximum exposure" is generally indicative of (final) reclamation requirements associated with the final (i.e., terminal) pit reclamation obligation, to include full process plant and facilities demolition, recontouring and revegetation, and "full build -out" of the process waste stockpile. The subject reclamation conditions and post - mining topography are depicted in Exhibit F: Reclamation Plan (consistent with the requirements of Rule 4.2 — Financial Warranty Liability Amount). Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit L Page 2 TABLE L-1: RECLAMATION COST ESTIMATE Item $/Unit x CPI No. Work Description Quantity Unit $/Unit Inflation Extended 1 PLANT AREA AND FACILTIES A Plant Dismantlement/Transport to Denver Metro Area' Lump $ $ $ 1,527,839 1 Sum 1,250,000 1,527,839 B Plant Foundations Concrete Breaking/Removal/In-Pit Disposal YD3 $ $ $ 653,949 71,337.00 8 9 C Paved Area Concrete/Asphalt Removal/In-Pit Disposal (13.24 YD3 $ $ $ 52,250 acres/6-inches) 10,687 4 5 Truck D Miscellaneous Solid Waste Removal/Disposal Loads (12 125 153 $ 2,292 15 YD3) E Scarify/Mix Rocked Plant Area Into Sub -Grade (Dozer/Scarifier) Acres $ $ $ 2,832 13.24 175 214 F Regrade and Disc Plant Operations Area (107 acres) 107 Acres 300 367 $ 39,235 G Place/Spread 12" Growth Medium Across Full Plant Area (107 YD3 $ $ $ 528,632 acres) 173,000 3 3 H Seed Mix (23 lbs./acre x 107 acres) 2 500 Lbs. 35 43 $ 106,949 I Drill Seed 107 Acres 225 275 $ 29,426 J Mulch Application (2 tons/acre x 107 Acres) $ $ 214 Acres 235 287 $ 61,468 K Crimping (Discing) $ $ 107 Acres 75 92 $ 9,809 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit L Page 3 L Silt Fencing/Sediment Logs and Erosion Control 1 Lump Sum $ 2,500 $ 3,056 $ 3,056 Sub -Total PlantDemolitaton and Removal $ 3,017,735 2 TERMINAL MINE PIT(@ YEAR 5)/HAUL ROADS/PROCESS DISCARD STOCKPILE (PDS) A Place/Spread 12" Growth Medium Terminal Pit (MiningYears0-5 - ReclamationYears3-5 - PDS@Year5: (3+127+108+93+76+71)- (42-54-44)-12.28 = 325.72 acres) 525,495 YD3 2 $ $ 1,573,628 B Slope Reduction Process Discard Stockpile - Dozer 5H:1V Slope - 2 Sides Only 63 Hours $ 175 $ 214 $ 13,476 C Place/Spread 12" Growth Medium on Remainder Process Discard Stockpile (12.28 acres) 19,808 YD3 $ 2 $ 3 $ 59,316 D Rip/Scarify East, Northwest and Southwest Primary Haul Roads (10.6+10.6+22.8=44 acres) 44 Acres $ 175 $ 214 $ 9,411 E Place/Spread 12" Growth Medium on Haul Roads (44 acres) 70,987 YD3 $ 3 $ 212,574 F Seed Mix (121bs./acre PLS x [325.72+12.28+44] 382 Acres) 4,584 Lbs. $ 35 $ 43 $ 196,101 G Drill Seed 382 Acres $ 225 $ 275 $ 105,054 H Mulch Application (2 tons/acre x 382 acres) 764 Ton $ 235 $ 287 $ 219,447 I Crimping (Discing) 382 Acres $ 75 $ 92 $ 35,018 J Miscellaneous Silt Fencing/Sediment Logs and Erosion Control 1 Lump Sum $ 10,000 $ 12,223 $ 12,223 Sub -Total Terminal Mine Pit(@ Year 5)/Haul Roads/PDS $ 2,436,248 3 REVEGETATION MONITORING AND MAINTENANCE - 5 YEARS Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit L Page 4 A Post -Closure Year 1 (PC -1) 585 Acres $ 150 $ 183 $ 107,254 B Post -Closure Year 2 (PC -2) 585 Acres $ 125 $ 153 $ 89,379 C Post -Closure Year 3 (PC -3) 585 Acres $ 100 $ 122 $ 71,503 D Post -Closure Year 4 (PC -4) 543 Acres $ 75 $ 92 $ 49,777 E Post -Closure Year 5 (PC -5) 489 Acres $ 50 $ 61 $ 29,885 Sub -Total Monitoring and Maintenance - 5 Years $ 347,797 TOTAL DIRECT COST (ITEMS 1-3) $ 5,801,781 INDIRECT COSTS 4 Liability Insurance 2% of Direct $ 116,036 5 Performance Bond 1.05% of Direct $ 60,919 6 Job Superintendent 6 Month 8,750 10,695 $ 64,169 7 Profit 10% of Direct $ 580,178 8 Engineering/Bid Preperation 4.25% of Direct $ 246,576 9 Reclamation Management/Administration 5% of Direct $ 290,089 TOTAL INDIRECT COSTS (ITEMS 4-9) $ 1,357,966 GRAND TOTAL2 $ 7,159,747 Notes: ' Estimate Provided by Plant Construction Contractor - Includes all Labor and Materials for Complete Plant/Equiptment Removal and Foundation Demolition Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit L Page 5 'All Costs Reflect Quotes and/or Unit Prices Utilized for the CSC Keenesburg No. 2 Mine (DRMS Permit No. M 2019-058) Reclamation Cost Estimate - Adjusted for Inflation Utilizing Compounded CPI for 2019-2023 Quantities May Be Rounded 1 Estimate Provided by Plant Construction Contractor - Includes all Labor and Materials for Complete Plant/Equipment Removal and Foundation Demolition 2 All Costs Reflect Quotes and/or Unit Prices Utilized for the CSC Keenesburg No. 2 Mine (DRMS Permit No. M 2019-058) Reclamation Cost Estimate — Adjusted for Inflation Utilizing Compounded CPI for 2019-2023 Quantities May Be Rounded Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit L Page 6 Reclamation activities can be generally broken down as follows: Life -of -Mine Concurrent Reclamation Following initial development of sufficient pit void volume to support process waste stockpiling and long-term growth medium stockpiling, pit advance (commencing in Year 3) will occur such that pre -strip of growth medium in front of the advancing active mining face will be backhauled to the prior year's mine block for placement and revegetation. Accordingly, the concurrent reclamation is accomplished as a component of routine operations. Annual "mine blocks" range from approximately 80 to about 130 acres in area, with the fmal three years of mine life (i.e., Years 18 through 20) averaging about 72 acres per year. Thus, CSC has conservatively utilized 130 acres as the projected "maximum exposure" for terminal pit conditions, as all preceding mine blocks will have been reclaimed and revegetated, and in various stages of the prescribed five (5) year monitoring and maintenance period. Life -of -Mine Advance Reclamation The CSC mine plan incorporates the following "advance reclamation" activities which result in a proportionate reduction of the outstanding obligations at time of closure: • Year 7: Reclamation of the Northwest Haul Road (10.37 acres), which will include ripping/scarification, replacement of growth medium, and revegetation, all of which will be accomplished within the context of routine operations. • Year 11: Reclamation of the East Haul Road (10.7 acres), which will include ripping/scarification, replacement of growth medium, and revegetation, all of which will be accomplished within the context of routine operations. • All Years: As specified in Exhibit D: Mining Plan, routine mining operations will ensure that pit perimeter "highwalls" will be left in a 5H:1 V slope gradient condition, or less. The 5H:1 V design objective will approximate natural angle of repose for the sand material; and it is anticipated that drying conditions, etc. will further reduce the slope gradient, ensuring post -mining conditions conducive to the post -mining land use designation as "rangeland". Final Site Closure CSC has broken down these remaining obligations into the following components, and final site closure costs are addressed in Table L-1: Reclamation Cost Estimate. • Plant Area and Facilities To include the following: o Plant dismantlement and transport to the Denver metropolitan area for disposition, either as saleable used equipment. CSC has relied upon a vendor -supplied quote (lump sum), to include all equipment, material, and labor requirements necessary to accomplish full demolition. No provision for salvage value (if any) has been taken. o Demolition of concrete foundations/footers to nominal 18 -inch depth below ground surface and placement/consolidation within pit void immediately adjacent to plant area. Colorado Sand Company II, LLC Kersey Mine 112(C) Reclamation Permit Application June 7, 2024 Exhibit L Page 7 o Concrete and/or asphaltic surfaced roadways demolition and placement/consolidation within pit void immediately adjacent to plant area, followed by ripping/scarification of sub -base. o Regrade and recontouring of entire plant and facilities area (107 acres) to approximate original contours and drainage conditions. o Placement of growth medium and revegetation across full extent (107 acres) of the reclaimed area. o Placement of silt fencing and/or other erosion controls at areas to be identified upon completion of reclamation activities. • Terminal Mine Pit, Plant Waste Pile, and Remaining Haul Roads To include the following: o Terminal pit closure (on assumed basis of a 63.3 -acre terminal pit maximum areal extent) via placement of growth medium (in part) sourced from the TS -1 long-term growth medium stockpile. o Final slope reduction (to 5H:1 V) of plant waste stockpile areas not previously reclaimed followed by growth medium placement. o Ripping and scarification of remaining portions of Southwest Haul and Northwest Haul Roads, respectively, followed by growth medium placement. o Revegetation of (all of the above) areas, to include drill seeding, mulch application, and crimping/discing. o Placement of silt fencing and/or other erosion controls at areas to be identified upon completion of reclamation activities • Revegetation Monitoring and Maintenance Period (5 Years) To include the following: o For all areas associated with final site closure, CSC will initiate a five-year post -closure (PC) monitoring and maintenance period. CSC has included in Year 1 (i.e., PC -1) those areas that remain subject to (but are already in) the respective five-year period(s). Thus, Year 1 of the post -closure period will address a final reclamation obligation totaling approximately 503 acres, to include the 107 -acre plant/facilities area and 68.7 -acre terminal pit, along with those areas reclaimed/revegetated over the preceding four (4) years., i.e., Year 19 (77.5 acres), Year 18 (86.8 acres), Year 17 (90.1 acres) and Year 16 (92.0 acres), respectively. Each year thereafter, the oldest reclaimed mine block will drop off the five-year monitoring and maintenance period roster; thus, the assumed (approximate) acreages for the successive post - closure years are: (PC -2) = 411 acres; (PC -3) = 322.5 acres; (PC -4) = 242.6 acres; (PC -5) = 175.1 acres. CSC has assumed a per -acre cost for this five-year monitoring and maintenance period and applied same on a descending scale, on the basis that maintenance requirements will likely decrease with each passing year. Colorado Sand Company II, LLC Kersey Mine 112(C) Reclamation Permit Application June 7, 2024 Exhibit M Page 1 EXHIBIT M OTHER PERMITS AND LICENSES Per Rule 6.4.13 -- Other Permits and Licenses, the Operator/Applicant shall provide a statement identifying which of the following permits, licenses, and approvals the Operator/Applicant holds or will be seeking in order to conduct the proposed mining and reclamation operations: effluent discharge permits, air quality emissions permits, radioactive source material licenses, the State Historic Preservation Office clearance, disposal of dredge and fill material (404) permits, permit to construct a dam, well permits, explosives permits, highway access permits, U.S. Forest Service permits, Bureau of Land Management permits, county zoning and land -use permits, and city zoning and land -use permits. Permits Required CSC has identified the following list of other permits and/or licenses required in addition to the subject CSC Kersey Mine's DRMS Regular (112) Operation Reclamation Permit: Federal Mine Safety and Health Administration (MSHA) • Identification Number/Certificate of Authorization United States Fish and Wildlife Service • Consultation re: Endangered Species Act (ESA) federally threatened and endangered species • Consultation re: Migratory Bird Treaty Act (MBTA) and Bald and Golden Eagle Protection Act (BGEPA) compliance United States Environmental Protection Agency • The Spill Prevention, Control, and Countermeasure (SPCC) Plan will be required when onsite storage of oil/fuel exceeds 1,320 gallons. State of Colorado Colorado Department of Public Health and Environment - Air Quality Control Division • Air Pollution Emissions Notice (APEN) • Permit to Construct • Permit to Operate Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit M Page 2 Colorado Department of Public Health and Environment - Water Quality Control Division • CDPS Permit(s): o Stormwater General Permit (COR-0400000) for Construction ■ Stormwater Management Plan o Stormwater General Permit (COG -0500000) for Stormwater Discharges Associated with Sand and Gravel Mining and Processing (may not be required depending on the potential for discharge from the mine) ■ Stormwater Management Plan Colorado Parks and Wildlife • Consultation re: State Threatened and Endangered Species Weld County, Colorado • Use By Special Review Permit — Planning and Zoning Department • Access Permit — Public Works Department, Planning and Zoning Department • Grading Permit — Public Works Department, Planning and Zoning Department o Land disturbance or excavation in accordance with plans associated with a mining permit may be approved by the county without a grading permit. CSC anticipates a permit exemption will be applied in place of the grading permit. • Special Transport Permit — Public Works Department • Commercial Building Permit(s) — Building Department • Septic Permit — Planning and Zoning Department, Department of Environmental Health and Services Permits Not Required Based on Current Information CSC has determined that the following (above -cited) permits are not required for the Kersey Mine: • Disposal of Dredge and Fill Material (USACE Section 404 Permit) A comprehensive wetland survey of the Permit Area/Affected Area was completed. One surface water feature was observed. A request for an Approved Jurisdictional Determination (AJD) decision was submitted to the USACE on February 8, 2024, and granted by the U.S. Army Corps of Engineers (USACE) on March 11, 2024. The USACE confirmed that the observed surface water feature is not a jurisdictional water of the U.S. • Explosive Permits Per discussion provided in Exhibit D: Mining Plan [Item 1(i)], there will be no blasting associated with the mining/excavation operations; therefore, no explosive permit is required. • U.S. Forest Service Permits All mining activities are restricted to fee -owned (private) lands and minerals. There are no U.S. Forest Service surface or mineral estates involved; therefore, no U.S. Forest Service permit(s) are required. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit M Page 3 • U.S. Bureau of Land Management Permits All mining activities are restricted to fee -owned (private) lands and minerals. There are no U.S. Bureau of Land Management surface or mineral estates involved; therefore, no U.S. BLM permit(s) are required. • City Zoning and Land -Use Permits All mining activities are restricted to fee -owned (private) lands and minerals located within unincorporated portions of Weld County; therefore, no City Zoning and/or Land -Use permit(s) are required. The planned operations will be subject to Weld County Use by Special Review permitting requirements and other applicable County requirements, as identified below. • Individual Wastewater Discharge Permit (Colorado Department of Public Health and Environment) Wastewater discharge is not anticipated; therefore, an individual wastewater discharge permit will not be required. Stormwater permits required through the Colorado Discharge Permit System (CDPS) are referenced in the Permits Required section above. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit N Page 1 EXHIBIT N SOURCE OF LEGAL RIGHT TO ENTER Per Rule 6.3.7 -- Provide documentation of the legal right to enter to conduct mining and reclamation, for Owners of Record described in Rule 1.6.2(1)(e)(i). This may include a copy of a lease, deed, abstract of title, a current tax receipt, or a signed statement by the Landowner and acknowledged by a Notary Public stating that the Operator/Applicant has legal right to enter to conduct mining and reclamation. See Exhibit N-1 for a signed copy of the Landlord's Consent to Assignment and Assumption of Lease. See Exhibit N-2 for a signed and date -stamped copy of the Memorandum of Lease. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit N Page 2 EXHIBIT N-1 LANDLORD'S CONSENT TO ASSIGNMENT AND ASSUMPTION OF LEASE Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 LANDLORD'S CONSENT TO ASSIGNMENT AND ASSUMPTION OF L.FASE THIS LANDLORD'S CONSENT TO ASSIGNMENT AND ASSUMPTION OF LEASE (this "Consent") is effective as of the sour day of April, 2024. WHEREAS, Wells Ranch LLLP ("Landlord") and Colorado Sand Company, LLC ("Tenant") are parties to that certain Sand Mining Lease dated September 27`h, 2023 (the "Lease"); and WHEREAS, Tenant desires to assign its interest in the Lease to Colorado Sand Company tl, LLC ("Assignee"); WHEREAS, Section 8.1 of the Lease provides Tenant the right to assign its interest upon Landlord's written approval, which shall not be unreasonably withheld, conditioned or delayed. IN CONSIDERATION OF this Consent, the Tenant transfers all of the Tenant's rights and obligations under the Lease, and the Assignee agrees to assume the Lease and all of the obligations of Tenant Ender the Lease, the parties agree to keep, perform and fulfill the promises, conditions and agreements below: 1. Landlord consents to the Assignment and the transactions contemplated by that Assignment. 2. Tenant and Assignee shall enter into an Assignment and Assumption of Sand Mining Lease in the form of an Assignment and Assumption of Sand Mining Lease attached hereto as Exhibit A. 3. Tenant shall provide Landlord with a fully executed copy of the Assignment and Assumption of Sand Mining Lease promptly after execution. 4. Tenant shall remain liable and is not released from its obligations under the Sand Mining Lease. 5. Assignee acknowledges that it has agreed or will agree to assume all of the applicable obligations and responsibilities of the Tenant under the Lease starting from the effective date of the Assignment and Assumption of Sand Mining Lease until the end of the Term of the Lease and such time provided for Removal of Property under Section 6.3 thereof. 6. This Consent will not be valid and binding on the Landlord, Tenant and/or Assignee until it has been completely executed by all of the parties. 7. This Consent may be executed in any number of counterparts and/or via electronic signature, each of which shall be deemed an original but all of which together will constitute one and the same Consent. (REMAINDER OF PAGE LEFT INTENTIONALLY BLANK; SIGNATURE PAGE FOLLOWS] SIGNATURE PAGE TO LANDLORD'S CONSENT TO ASSIGNMENT AND ASSUMPTION OF LEASE IN WITNESS WHEREOF, the parties have executed this Consent as of the date set forth above. LANDLORD: WELLS RANCH, LLLP 8v: itle: General Partner ' TENANT: COLORADO SAND COMPANY, LLC By: Name: David G. Patterson Title: Co -President ASSIGNEE: COLORADO SAND COMPANY I1, LLC BY: Name: David G. Patterson Title: Co -President Exhibit N Page 3 EXHIBIT N-2 MEMORANDUM OF LEASE Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 After recording, return to: Colorado Sand Company II, LLC c/o Chalegne O'Brien 221 Bolivar St., suite 400 Jefferson City, MO 65101 MEMORANDUM OF LEASE This memorandum of lease dated April 30 , 2024 (the "Memo"), by and between Wells Ranch, LLLP (the "Landlord"), and Colorado Sand Company II, LLC (the "Tenant'). 1. Lease Agreement. Landlord and Colorado Sand Company, LLC are parties to a lease agreement dated September 27, 2023, as assigned to Tenant pursuant to that certain assignment dated on or around April _, 2024 (the "Lease"), in which Landlord leases to Tenant the land legally described on Exhibit A to this Memo (the "Lease Premises") located in Weld County, Colorado. 2. Primary Lease Term. The primary term of the Lease is twenty (20) years beginning on September 27, 2023. 3. Renewal Terms. The Lease provides the parties may mutually agree to extend the term of the Lease by three (3) periods of five (5) years each. 4. Further Information. Persons requiring additional information concerning the Lease may contact Landlord or Tenant at the following addresses: Landlord: Tenant: Wells Ranch LLLP Attn: Steve Wells 32010 C R 63 Gill, CO 80624 Colorado Sand Company, LLC 2001 Kirby Drive, Suite 360 Houston, TX 77019 5. Termination, Release, and Conflicts. This Memo shall automatically terminate without any further action upon the expiration or earlier termination of the Lease. Tenant acknowledges that Landlord shall have the right and authority to execute and record a release of this Memo upon the expiration or termination of the Lease. In the event of any conflict between the terms and conditions of this Memo and the terms and conditions of the Lease, the terms and conditions of the Lease shall supersede and control. [The remainder of this page is intentionally blank.] [Signatures and acknowledgements follow on the next page(s).] The parties accept this Memo by their respective signatures below. Landlord: Wells Ranch LLLP By, gnature qq `` { tick t,),) +e l 1,C' YAcite- Print Name & Title "- - z_y Date Landlord Acknowledgement SS: 1.—)..1&& County State of (VpArkd 1l This emo wa cknowledged before me on 2024 bytSC1S Na q� in his/her capacity as n �VikklitEUA ) of Wells Ranch LLLP Note Public (seal) Tenant: Colorado Sand Company II, LLC By: Dave Patterson, CFO f ! r V \ CG7 Date SS: ‘V.ACt 15 County State of MARTI K ROTHROCK NOTARY PUBLIC STATE OF COLORADO NOTARY ID 19954013290 MY COMMISSION EXPIRES 0812512027 Tenant Acknowledgement This Memo was acknowledged before me on WkiL\ 2024, by Dave Patterson in his capacity of as CFO of Colorado Sand Company It, LLC Notary Puc (seal) Sady Cardenas My Co�7m2sion Expires 9im27/2025 Notary ID133586361 EXHIBIT A LEGAL DESCRIPTION AIL OF SECTIONS 2, 3, 10, 11, 14, AND 15, TOWNSHIP S NORTH, RANGE 63 WEST AND THE SOUTH ONE-HALF OF THE SOUTH ONE' -HALF (S1/2 OF THE S1/2) OF SECTICtN 34, TOWNSHIP 6 NORTH, RANGE 63 WEST OF THE 6TH PRINCIPAL MERIDIAN, COUNTY Of WELD, STATE OF COLORADO, BEING MORE PARTICULARLY DESC.RIB€D AS FOLLOWS: BASIS OF BEARINGS: THE WEST LINE OF THE scAm-tWESi €7NE-QUARTER OF SAID SECTIGh115 AS MCONLIMENTED AT THE SOUTHWEST CORNER OF SAID SECTION 15 BY A 3 INCH ALUMINUM CAP ON #6 REB, R 5TAMED "IS 4845," FROM WHICH THE WEST QUARTER CORNER OF SAID SECTION 15 AS MONUMENTEQ BY A3 INCH ALUMINUM CAP ON Lt6 €tEBAR STAMPED "LS 7242, 1990" BEARS NO4939'27"W A DISTANCE OF 2,641.96 FEET, WITH ALL BEARINGS SHOWN HEREON RELATIVE THERETO. BEGINNING AT SAID SOUTHWEST CORNER OF SAID SECTION 15, TOWNSHIP 5 NORTH, RANGE 63 WEST AS SHOWN ON THE LAND SURVEY PLAT DATED 20124 FILED IN THE WELD COUNTY CLERK AND RECORDERS OFFICE UNDER RECEPTION NUMBER 4940341: THENCE N04`39'27"W, A DISTANCE OF 2,641.96 FEET ALONG SAID WEST LINE OF THE SOUTHWEST QUARTER TO SAID WEST QUARTER CORNER OF SECTION 15: THENCE N04"31314iN, A DISTANCE Of 2,042.40! FEET ALONG THE WEST LINE Of THE NORTHWEST QUARTER TO THE NORTHWEST CORNER OF SAID SECTION 15: THENCE N00°54'11"W, A DISTANCE OF 2.642.05 FEET .ALONG THE Ih/EST LINE OF THE SOUTHWEST QUARTER TO T'rIE WEST QUARTER CORNER OF SAID SECTION 10; THENCE NOO°5-4.36'W,?L DISTANCE OF 2,642,40 FEET ALONG THE 'VEST LINE OF THE NORTHWEST QUARTER TO THE NORTHWEST CORNER OF SAT SECTION 10; THENCE N00'48'02"W, A DISTANCE OF 2,639.14 FEET ALONG THE WEST LINE OF THE SOUTHWEST QUARTER TO THE WEST QUARTER CORNER. OF- SAID SECTION 3; THENCE NOT48'34"W, A, DISTANCE OF 2.652.06 FEET ALONG THE WEST LINE OF THE NORTHWEST QUARTER TO THE NORTHWEST CORNER OF SAID SECTION 3, TOWNSHIP 5 NORTH, RANGE 63 WEST: SAID POINT ALSO BEING THE SOUTHWEST CORNER OF SAID SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST: THENCE NCIrurto"W, A DISTANCE OF 1,3323.01 FEET ALONG THE VT/EST LINE OF THE SOUTHWEST QUARTER OF SAID SECTION 34 TO THE NORTHWEST CORNER OF THE SOUTH HALF OF THE SOUTH HALF (51/2 OF THE S1/2) OF SAID SECITCON 34: THENCE DEPARTING SAID WEST UNE OF THE SOUTHWEST QUARTER OF SAID 5EcnoN 3! N89'17`34"E, A DISTANCE OF 2,639.04 FEET ALONG T FIE NORTH UNE OF THE SOUTH HALF OF THE SOUTH HALF tS1/2 OF THE S1/2} OF SAID SECTION 34 TO THE. CENTER -SOUTH tC-S)1J16T" COFINEII OF SAID SECTION 34; THENCE '4891.7'14"E, A DISTANCE OF 2,633.94 FEET ALONG SAID NORTH LINE OF THE salmi HALF OF THE SOUTH HALF (SW OF THE SW) OF SAID SECTION 34 TO THE NORTHEAST CORNER OF THE SOUTH HALF OF THE SOUTH HALF (S1/2 OF THE S1/2) OF SAID SECTION 34; THENCE SO(?'50'34"E, A DISTANCE OF 1,330.01 FEET ALONG THE FAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST; SAID POINT ALSO BEEN* THE NORTHWEST CORNER OF SAID SECTION 2, TOWNSHIP 5 NORTH, RANGE 63 WEST; THENCE N89'21'07"E. A DISTANCE OF 2,631,92 FEET ALONG THE NORTH LINE OF THE NORTHWEST QUARTER TO THE NORTH QUARTER CORNER OF SAID SECTION 2: THENCE NS9'23'04"E, A DISTANCE OF 2,630.63 FEET ALONG THE NORTH UNE OFrTHE NORTHF_A5T QUARTER TO THE NORTHEAST CORNER OF SAID SECTION 2; THENCE 5©1'11'©4"E, A DISTANCE OF 2,641.81. FEE' T ALONG THE EAST UNE OF THE NORTHEAST QUARTER TO THE EAST QUARTER CORNER OF SAID SECTION 2; THENCE 501`11'04"E, A DISTANCE OF 2.655.08 FEET ALONG THE EAST LINE OF THE SOUTHEAST QUARTER TO THE 50UTHEAST CORNER OF SAID SECTION 2; THENCE SO1'41'2?"E, A DISTANCE OF 2,634.57 FEET ALONG THE EAST UNE OF THE NORTHEAST QUARTER TO THE EAST QUARTER CORNER OF SAID SECTION 11; THENCE 501'4r22"E, A DISTANCE OF 2,634.57 FEET ALONG THE;EAST UNE. OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 11; t THENCE 500°22'20"E, A DISTANCE OF 2674.74 FEET ALONG THE EAST LINE OF THE NORTHEAST QUARTER TO THE EAST QUARTEF.: CORNER OF SAID SEC ON 14; THENCE SOCr24'04"E, A DISTANCE OF 2,675.41 FEET ALONG EAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER Of SAID SECTION 14: THENCE SF9'53'22"W, A DISTANCE OF 2.554.04 FEET ALONG THE SOUTH LINE: OF THE SOUTHEAST QUARTER TO THE SOUTH QUARTER CORNER OF SAID SECTICIN 14; THENCE 539°361.1"W, A DISTANCE OF 2,558.71 FEET ALONG THE SOUTH LINE OF THE SOUTHWEST QUARTER TO THE SOUTHWEST CORNER Of SAID SECTION 14; THENCE 589'44'28"W, A,DISTANCE €3F 2,561.33 FEET ALONG THE SOUTH LINE OF THE SOUTHEAST QUARTER TO THE SOUTH QUARTER CORNER OF SAID SECTION! 15; THENCE S89'45'32wVV, A DISTANCE OF 2.561.71 FEET ALONG THE SOUTH UNE OF THE SOUTHWEST QUARTER TO THE POINT OF BEGINNING, SAID DESCRIBED PERMIT PARCEL OF LAND CONTAINS .x,997.56 ACRES, MORE OR LESS It}. AND IS SUBJECT TO ANY RIGHTS- OF -WAY OR OTHER EASEMENTS OF RECORD OR AS NOW EXISTING ON SAID DESCRIBED PARCEL OF LAND. ALL BEARINGS ARE GRID BEARINGS OE i RE COLORADO STATE PLANE COORDINATE SYSTEM, NORTH ZONE, NORTH AMERICAN DATUM 1983/2011. THE LINEAL DIMENSIONS AND AREAS AS SHOWN HEREIN ARE GROUND DISTANCES AND GROUND AREAS BASED ON THE "U.S. SURVEY FOOT.' TO GET GRID DISTANCES MULTIPLY SHOWN DISTANCE SY 0.99874226. ALL REFERENCES TO AUQUOT CORNER NIONUMENATION IS DESCRIBED ON THE LAND SURVEY PLAT DATED 2024 FILED IN THE WELD COUNTY CLERK AND RECORDERS OFFICE UNDER RECEPTION NUMBER 444034.1; Exhibit O Page 1 EXHIBIT O OWNER(S) OF RECORD OF AFFECTED LAND (SURFACE AREA) AND SUBSTANCE TO BE MINED Per Rule 6.4.15 — The complete list of owners can be submitted as a list or on a map in Exhibit C. CSC has identified only the following owners of affected land and substance to be mined for the Kersey Mine project: Wells Ranch Wells Ranch LLLP A summary of the individual tax parcels owned by the owner of affected land and substance to be mined, Wells Ranch, LLP, is provided in Table O-1: Tax Parcels of Owners of Affected Land and Substance to be Mined. TABLE O-1: TAX PARCELS OF OWNERS OF AFFECTED LAND AND SUBSTANCE TO BE MINED Parcel Owner Mailing Address 096503100009 WELLS RANCH, LLLP 32010 COUNTY ROAD 63 GILL, CO 806249314 096502100001 WELLS RANCH, LLLP 32010 COUNTY ROAD 63 GILL, CO 806249314 096510200003 WELLS RANCH, LLLP 32010 COUNTY ROAD 63 GILL, CO 806249314 096510100008 WELLS RANCH, LLLP 32010 COUNTY ROAD 63 GILL, CO 806249314 096511100002 WELLS RANCH, LLLP 32010 COUNTY ROAD 63 GILL, CO 806249314 096515100004 WELLS RANCH, LLLP 32010 COUNTY ROAD 63 GILL, CO 806249314 096514100001 WELLS RANCH, LLLP 32010 COUNTY ROAD 63 GILL, CO 806249314 Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit P Page 1 EXHIBIT P MUNICIPALITIES WITHIN TWO MILES Per Rule 6.4.16 -- A list of any municipality(s) within two (2) miles of the proposed mining operation and the address of the general office of each municipality. Colorado Sand Company II, LLC has confirmed that there are no municipalities within a two-mile radius of the Kersey Mine Project. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit Q Page 1 EXHIBIT Q PROOF OF MAILING NOTICE TO BOARD OF COUNTY COMMISSIONERS AND CONSERVATION DISTRICTS Per Rule 6.4.17 -- Proof that notice of the permit application was sent to the Board of County Commissioners and, if the mining operation is within the boundaries of a Conservation District, to the Board of Supervisors of the local Conservation District, pursuant to Rule 1.6.2(1)(a)(ii). See Exhibit Q-1 for a date -stamped copy of the notice acknowledging receipt by the Board of County Commissioners. See Exhibit Q-2 for a date -stamped copy of the notice acknowledging receipt by the Board of Supervisors for the West Greeley Conservation District. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit Q Page 2 EXHIBIT Q-1 DATE STAMPED ACKNOWLEDGEMENT RECEIPT FROM THE BOARD OF COUNTY COMMISSIONERS Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 NOTICE OF FILING APPLICATION FOR COI,ORADO MINED LAND RECLAMATION PERMIT FOR REGULAR (112) CONSTRUCTION MATERIALS EXTRACTION OPERATION NOTICE TO THE BOARD OF COUNTY COMMISSIONERS WELD COUNTY Colorado Sand Company 11, LLC (the "Applicant/Operator") has applied for a Regular ( I l2) reclamation permit from the Colorado Mined Land Reclamation Board (the "Board") to conduct the extraction of construction materials operations in Weld County. The attached information is being provided to notify you of the location and nature of the proposed operation. The entire application is on file with the Division of Reclamation, Mining, and Safety (the "Division'') and the local county clerk and recorder. The applicant/operator proposes to reclaim the affected land to rangeland use. Pursuant to Section 34-32.5-116(4)(m), C.R.S., the Board may confer with the local Board of County Commissioners before approving of the post -mining land use. Accordingly, the Board would appreciate your comments on the proposed operation. Please note that, in order to preserve your right to a hearing before the Board on this application, you must submit written comments on the application within twenty (20) days of the date of last publication of notice pursuant to Section 34-32.5-112(10), C.R.S. If you would like to discuss the proposed post -mining land use, or any other issue regarding this application, please contact the Division of Reclamation, Mining, and Safety, 1313 Sherman Street, Room 215, Denver, Colorado 80203, (303) 866-3567. RECEIVED JUN 0 7 2024 WELD COUNTY COMMISSIONERS Exhibit Q Page 3 EXHIBIT Q-2 DATE STAMPED ACKNOWLEDGEMENT RECEIPT FROM THE BOARD OF SUPERVISORS FOR THE WEST GREELEY CONSERVATION DISTRICT Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 f NOTICE OF FILING APPLICATION FOR COLORADO MINED LAND RECLAMATION PERMIT FOR REGULAR (112) CONSTRUCTION MATERIALS EXTRACTION OPERATION NOTICE TO THE BOARD OF SUPERVISORS OF THE LOCAL CONSERVATION DISTRICT WEST GREELEY CONSERVATION DISTRICT Colorado Sand Company II, LLC (the "Applicant/Operator") has applied for a Regular (112) reclamation permit from the Colorado Mined Land Reclamation Board (the "Board") to conduct the extraction of construction materials operations at its proposed Kersey Mine in Weld County. The attached information is being provided to notify you of the location and nature of the proposed operation. The entire application is on file with the Division of Reclamation, Mining, and Safety (the "Division") and the local county clerk and recorder. The applicant/operator proposes to reclaim the affected land to rangeland use. Pursuant to Section 34-32.5-116(4)(m), C.R.S., the Board may confer with the local Board of County Commissioners before approving of the post_mining land use. Accordingly, the Board would appreciate your comments on the proposed operation. Please note that, in order to preserve your right to a hearing before the Board on this application, you must submit written comments on the application within twenty (20) days of the date of last publication of notice pursuant to Section 34-32.5-112(10), C.R.S. If you would like to discuss the proposed post -mining land use, or any other issue regarding this application, please contact the Division of Reclamation, Mining, and Safety, 1313 Sherman Street, Room 215, Denver, Colorado 80203, (303) 866-3567. WEST CREELEY CONSERVATION DISTRICT Exhibit R Page I EXHIBIT R PROOF OF FILING WITH THE COUNTY CLERK AND RECORDER Per Rule 6.4. /R — An affidavit or receipt indicating the date on which the application was placed with the local County Clerk and Recorder jar public review, pursuant to Rule1.6.1(1)(c). 1 acknowledge that I have received a Construction Material Regular (1 12) Operation Reclamation Permit Application from Colorado Sand Company Il. LLC for the Kersey Mine. JUN u 7 2024 Signature of County Clerk and Recorder Date Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (1 12) Operation Reclamation Permit Application June 7, 2024 Exhibit S Page 1 EXHIBIT S PERMANENT MAN-MADE STRUCTURES Per Rule 6.3.12 — The Applicant shall provide information sufficient to demonstrate that the stability of any structures located within two hundred (200) feet of the operation or affected land will not be adversely affected. If the Office determines that such information is inadequate to demonstrate that the operation will not adversely affect the stability of any significant, valuable and permanent man-made structure, the Applicant shall either: (a) provide a notarized agreement between the applicant and the person(s) having an interest in the structure, that the applicant is to provide compensation for any damage to the structure; or (b) where such an agreement cannot be reached, the applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or (c) where such structure is a utility, the applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Exhibit S Page 2 EXHIBIT S-1 STRUCTURE AGREEMENT: BONANZA CREEK ENERGY OPERATING COMPANY, LLC Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Structure Aareement This letter has been provided to you, Bonanza Creek Energy Operating Company, LLC, as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable, and permanent man-made structure located within two hundred (200)feet of the affected land, the Applicant shall either. A. Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation forany damage to the structure; or B. Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or C. Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Miring Rule 6.3.12 and Rule 6.4.20). The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with the Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. §34-32.5-115 (4)(e), and with the Hard Rock/Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S §3432-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures have been located on, or within, 200 feet of the proposed affected areas: • 8 wells (active or inactive) as described by Exhibit B CERTIFICATION The Applicant, Colorado Sand Company LLC, by David Patterson, Co -President, does hereby certify that Bonanza Creek Energy Operating Company, LLC shall be compensated for any damage from the proposed mining operation to the above structure(s) located on, or within, 200 feet of the proposed affected area described within Exhibit A of the Reclamation Permit Application for the Kersey Mine. File Number M This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration of modification to this form shall result in voiding this form. Structure Agreement Page 1 of 3 Kersey Mine_112 Reclamation Operation NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant: Colorado Sand Company LLC Representative Name: Dave Patterson Representative Signature: Date: 1-A' 1 2�2� STATE OF iexcAS ) ) ss. COUNTY OF I,r6OCC \S ) The foregoing was acknowledged before me this S -'day of Title: Co -President Pre 11 , 2b2H , by 0(111-t- FOL-WtabY1 as Cb— ?r -c S1641\ --k- of r.bl 0cctSold] u,c, Notary Public My Commission Expires: 2:1 �2�21P Sady Cardenas &y Commission Expirog 8/27/2026 Notary ID 133986301 Structure Agreement Page 2 of 3 Kersey Mine_112 Reclamation Operation Notary Public NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner: Bonanza Creek Energy Operating Company, LLC Representative Signature: Print Representative Name: Representative Signature: Print Representative Name: Date: AIIc; 1 f r STATE OF 1-PLOA150 P9 ) ) ss. COUNTY OF I) EJ'U UE Title: V, P. ck-.d - ,es The foregoing was acknowledged before me this `lr day of 19/x: by � t�` � :,dl� as VP-Av._'1r iec of Bonanza Creek Energy Operating Company, LLC. My Commission Expires: ROBERT J. BRESNAHAN Notary Public State of Colorado Notary ID # 20104009995 My Commission Expires 03-21-2026 3/IizazZ Structure Agreement Page 3 of 3 Kersey Mine_112 Reclamation Operation Exhibit A Proposed Mining Location Kersey Mine_112 Reclamation Operation Exhibit B Bonanza Oil and Gas Wells Kersey Mine_112 Reclamation Operation ude Reported Sp 0 v r i 3 0 API Label Operat_Num 0 2 i 2 Z 2 Z 2 a M a e a m a 8 a a a a a a a a a s s 0 0 0 a 0 0 a 0 m s 8 0 s s 0 0 s 0 0 's s 0 0 s s 0 s 0 0 3 0 3 0 0 0 0 0 0 WATTENBERG 1281283 151 a a a a ro m m 0 m m 0 n z 2 3 s 2 3 s 2 3 �z F 3 a 2 Q 3 2 a 3 c 2 a 3 0 R 0 R 0 R 0 0 A 0 N 0 T p� P WELLS RANCH 143.14 WELLS RANCH !ACTUAL a a a 1 a 4 5 2� Q 4414 WELLS RANCH 33-14 WELLS RANCH 34.14 WELLS RANCH x u 3 e d 13-14 WELLS RANCH 23-14 WELLS RANCH u z h 3 u 3 u 3 u 3 u 3 u 3 u 3 3 e z ye h e e m Y N w Y H Y n 5 a s� a s O 2 'o m z u 2 0 m A O m D 0 05-123-23379 0 m r 05-123-23383 a 8 r. 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Ye• ;'s ag la Oh; n � V 8 PI3 (X261[ roll 3AL,ZL005 (tl) Laa'msiJ to moron k a y (N), It Stilt 3..0 *LAOS (tl) L00'M9Z) MI nn'orron b ("• �J • tl tl • a "q•M I �L 4; _ ('V4 a-i$ III • � a d s LO g - -1� — — �� — — (IIJ,Z9'K9Z M,ii,S1.i0N • - -� - ~-�(tl) (.W 619ZJ b dr=-0 § 3 sn • N.sc„) r----- - (n)(AODtBZ)NJ W'M-on M t` co I� ✓ 24 • in co 44 SP i5 3• w5 0 tea! V. g 6666-a.,,smocu,ilmer-.. Exhibit S Page 3 EXHIBIT S-2 STRUCTURE AGREEMENT: DCP OPERATING COMPANY, LP Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Structure Agreement Structure Agreement This letter has been provided to you, DCP Operating Company, LP, and its subsidiaries, DCP Midstream, LP ("DCP") Duke Energy Field Services LP ("Duke Energy") and Associated Natural Gas Corporation ("Associated NG"), as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significa nt, valuable, andpermanent man-madestructurelocated within two hundred (200)feetof the affected land, the Applicant shall either: A. Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or B. Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or C. Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) ofthe utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Miring Rule 6.3.12 and Rule 6.4.20). The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with the Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. §34-32.5-115 (4)(e), and with the Hard Rock/Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures have been located on, or within, 200 feet of the proposed affected areas: • 20' Pipeline Easements o Section 10, T5N, R63W NW1/4 and SW1/4 (DCP) ■ Rec. No. 3594663 o Section 14, T5N, R5W SE1/4(DCP) ■ Rec. No. 3537452 o Section 15, T5N, R63W Entire Section (DCP) ■ Rec. Nos. 3515967 and 3556401 Structure Agreement Page 1 of 5 Kersey Mine_112 Reclamation Operation • 30' Pipeline Easements o Section 34, T6N, R63W SE1/4 (DCP) • Rec. No. 3797974 o Section 3, T5N, R63W (Duke Energy) • Rec. Nos. 3260959, 3077377, and 3077384 o Section 14, T5N, R5W SW1/4(DCP) • Rec. No. 3797973 • 50' Pipeline Easements o Section 34, T6N, R63W SW1/4 and SE114 (Duke Energy) ■ Rec. Nos. 3260969, 3077384, and 3260959 o Section 2, T5N, R63W WW1/4, S W1 /4, and S E 1 /4 (Duke Energy) • Rec. Nos. 3260959, 3260959, and 3077384 o Section 3, T5N, R63W Entire Section (Duke Energy) • Rec. Nos. 3260959, 3077384, 3077377, and 3016421 a Section 10, T5N, R63W NW1/4 and SE1/4 (Duke Energy) ■ Rec. Nos.. 2924436, 3119402, 3077384, and 2981170 o Section 11, T5N, R63W NW14 and SW1/4 (Duke Energy) ■ Rec. Nos. 3148021, 3077383, and 3260959 o Section 15, T5N, R63W NWl/4 and NE1/4 (Duke Energy) ■ Rec. No. 3016422 • Receiver Site Easements o Section 34, T6N, R63W SW1/4 and SE1/4 (Duke Energy) ■ Rec. Nos. 3260959 and 3077377 o Section 2, T5N, R63W S E 1 /4 (Duke Energy) ■ Rec. No. 3260959 o Section 10, T5N, R63W SEl/4 (Duke Energy) • Rec. No. 3077384 o. Section 11, T5N, R63W SW1/4 (Duke Energy) • Rec. No. 3260959 o Section 15, T5N, R63W NW1/4 (DC:P) ■ Rec. No. 3594663 Structure Agreement Page 2 of 5 Kersey Mine_112 Reclamation Operation CERTIFICATION The Applicant, Colorado Sand Company LLC, by David Patterson. Co -President, does hereby certify that Noble Energy, Inc. shall be compensated for any damage from the proposed mining operation to the above structure(s) located on, or within, 200 feet of the proposed affected area described within Exhibit A of the Reclamation Permit Application for the Kersey Mme. File Number M This form has been approved by the Colorado Mined Land Reclamation ,board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Act for Hard Rosh, Metal, and Designated Mining Operations. Any alteration of modification to this form shall result in voiding this form. (The remainder of this page has intentionally been left blank) Structure Agreement Page 3 of 5 Kersey Mine_112 Reclamation Operation NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant: Colorado Sand Company LLC Representative Name: Dave Patterson t Representative Signature: 31e -‘ /t(/1;*—\. Date: 1—j\ I D� Zb1)LA Title: Co -President STATE OF 1-t)(-)0, ) ss. COUNTY OF \---V.A(�S ) The foregoing was acknowledged before me this 4‘ia-ay of W\ 20-2-11, by °UM- QGtkV-c,«b1% as co - er S'! d en -k- of C,c) 1 Dr ad 0 ScAnci Lw Notary Public My Commission Expires: Sady Carne My Commission Expires 9/27/2026 Notary ID 133986301 011ti-1 )20-2_(p Structure Agreement Page 4 of 5 Kersey Mine_I 12 Reclamation Operation NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner: DCP Operating Company, LP Representative Signature: Print Representative Name: Lewis D. Hagenlock COUNTY OF ti(-- ( v1 ) The foregoing was acknowledged before me this _0(day of c;.(Drucur\I Title: Attorney -in -Fact Date. ��, , .2 p ..2.67.7STATE OF Coicrc k) ) ) ss. Lewis D. Hagenlock as Attorney -in -Fact of DCP Operating Company, LP. Notary Public My Commission Expires .- 01-.Vz0 LORR1 ANN CARLSON Notary Public State of Colorado Notary ID #20054006501 My Commission Expires 03-02-2026 Structure Agreement Page 5 of 5 Kersey Mine_112 Reclamation Operation v-6 ,a©g1-1 , by Exhibit A Proposed Mining Location Kersey Mine_112 Reclamation Operation Exhibit B BCP Operating Company, LP Structures and Easements Kersey Mine_192 Reclamation Operation oaoPE«.vaEscalP ox. LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. • . �® . • s • �� WELD COUNTY, COLORADO LODGE P. WEST.arTHEMI r.r.ns,xE,x wrmEsrsxnrnwE.a. smnox�x.mvurexmsxaarx,x asam r__T__--I . . . scxsouEs ax szcsnloxs. 1 SEC 34 T6N, R63W • �`�yy • • • x. aaaceucxnnawnnairvsusnxcEcauvnxv roxEcuxoaavauv EuaxEm (SHEET 3)--IUHT MOM . . . J • . • - wramunory c''""'zExcECTwxs yrreorcoTon.xoe..xo,xwoxcx mssrareuxooFranr»Exr .mcwn.mE.r.t xo. 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TOWNSHIP SNORT.. ..COUNT, COLORADOP DM Exhibit S Page 4 EXHIBIT S-3 TALLGRASS ENERGY PARTNERS, LP (COLORADO LIBERTY PIPELINE, LLC) EASEMENTS Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 TRC DRMS Exhibit S Memorandum Date: 4/30/24 To: Colorado Division of Reclamation, Mining and Safety From: Colorado Sand Company II, LLC Project: Kersey Mine Permitting Subject: Tallgrass Energy Partners, LP (Colorado Liberty Pipeline LLC) Easements The Land Survey Plat, conducted by Ascent Geomatic Solutions, was recorded with Weld County on January 10th, 2024. There were various easements identified with "Schedule B2 Exemption" numbers called out for each easement. These "Schedule B2 Exemption" numbers reference Weld County Clerk & Recorder Record Numbers that identify the grantee(s) and grantor(s) of said record number, therefor, identifies the grantee(s) and grantor(s) of the easement associated with the record number. One of the grantees associated with various structures/easements within the permit area is Colorado Liberty Pipeline LLC, who is listed as the grantee of record numbers 4598079 and 4567442. Weld County Record Number 4567442, dated February 19th, 2020, is referring to a small 50' wide pipeline easement at the northeast corner of Section 2, Township 5 North, Range 63 West. Weld County Record Number 4598079, dated June 11th, 2020, is referring to a small varying width pipeline easement, just west of existing oil & gas facilities located approximately at the halfway point of the western border of Section 3, Township 5 North, Range 63 West. While searching for contacts for Colorado Liberty Pipeline LLC, we found that Colorado Liberty Pipeline LLC merged with Tallgrass Pony Express Pipeline, LLC. All assets were now owned by Tallgrass Energy who is the parent company of Tallgrass Pony Express Pipeline, LLC. TRC then proceeded to make contact with Tallgrass Energy's appropriate land representatives and scheduled a meeting to discuss the structure agreement (Exhibit S). Tallgrass Energy confirmed to TRC that they owned no facilities or pipelines within the permit area. Any easements they have in the permit area and null and void due to no construction within the defined construction window. Please see the following attachments for reference. Attachment 1: Colorado Liberty Pipeline LLC Easements Map oaoPE«.vaEscalP ox. LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. 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CLORACCI eoFe Attachment 2: Email Confirmation from Tallgrass Energy Penate, Erick From: Sent: To: Cc: Subject: Follow Up Flag: Flag Status: Bates, Shawn <shawn.bates@tallgrass.com> Monday, April 15, 2024 12:43 PM Penate, Erick; Miner, Forbes Ulmer, Bradley [EXTERNAL] Re: EXTERNALRE: Kersey Mine Structure Agreement Follow up Flagged This is an External email. Do not click links or open attachments unless you validate the sender and know the content is safe. ALWAYS hover over the link to preview the actual URL/site and confirm its legitimacy. Erick, I can confirm that Tallgrass owns no facilities or pipelines within the project area. Any easements we have in the project area are null and void due to no construction within the defined construction window in the easements. Anything else, please let me know. Thanks, Shawn Bates VP Land & ROW I tallgrass.com 0:303-763-2981 M: 701-500-5015 shawn.bates@tallgrass.com From: Penate, Erick <EPenate@trccompanies.com> Sent: Monday, April 15, 202411:39:03 AM To: Miner, Forbes <forbes.miner@tallgrass.com>; Bates, Shawn <shawn.bates@tallgrass.com> Cc: Ulmer, Bradley <brad.ulmer@tallgrass.com> Subject: EXTERNAL:RE: Kersey Mine Structure Agreement EXTERNAL: Hello, Hope you all had a great weekend. Just following up on my previous email. Would one of you please be able to confirm that there are no structures owned by Tallgrass within our permit area? We could go over everything on the phone again if needed. Please see my previous email for more detail and let me know. Thank you, Erick Penate, EIT Civil Engineer I — Design Management Services ,' TRC L nk303.597.5785 ter EBlog te@trccompanies.coLinkedlnITwitterIEDgTRCCmpan es.Ocomm0l From: Penate, Erick Sent: Thursday, April 11, 202411:17 AM To: Miner, Forbes <forbes.miner@tallgrass.com>; Bates, Shawn <shawn.bates@tallgrass.com> Cc: Ulmer, Bradley <brad.ulmer@tallgrass.com> Subject: Kersey Mine Structure Agreement Hello, I am reaching out for a follow up on the meeting we had on February 2B. regarding a mining project we are permitting in Weld County, Colorado. To quickly summarize, we requested a meeting to go over the structure agreement we are required to provide to any structure owners within out permit area. We believed that Tallgrass Pony Express Pipeline LLC had assets within our permit area. Weld County Records identify a couple of easements that are owned by Colorado Liberty Pipeline, who merged with Tallgrass Pony Express Pipeline LLC as of 5/13/22. During our teams meeting, a Tallgrass representative informed us that Tallgrass had no existing assets within the permit area of our project. Our permit area includes Sections 2, 3, 10, 11, 14, &15 , Township 5N Range 63W; and the south quarter of Section 34 Township 6N Range 63W of Weld County, Colorado. Could you please respond to this email confirming that this is in fact the case and there are no Tallgrass assets within our permit area?? Please see attached email chain for reference. Thank you, Erick Penate, EIT Civil Engineer I — Design Management Services 1526 Cole Blvd, Suite 150, Lakewood, CO 80401 Tr7� C T 303.597.5785 EPenate(or)trccomoanies.com Linked In I Twitter Blog I TRCcompanies.com 2 Exhibit S Page 5 EXHIBIT S-4 STABILITY ANALYSIS REPORT Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 �i TRC May 24, 2024 Brady Reece, Chief Commercial Officer Colorado Sand Company II, LLC 2001 Kirby Drive, Suite 360 Houston, TX 77019 1382 W Ninth St., Suite 400 T 216.344.3072 Cleveland, OH 44113 TRCcompanies.com RE: Geotechnical Stability Report Kersey Sand Mine County Road 61 and County Road 64 - Kersey, Colorado TRC Project No.: 535891.0000.0000 Dear Mr. Reece: TRC Engineers, Inc. (TRC) is pleased to present this Geotechnical Stability Report related to the proposed surface mining to be performed at the Kersey Sand Mine located along Country Road 61 and Country Road 64 in Kersey, CO (Project Site). The work was performed by TRC as requested by the Colorado Sand Company LLC in accordance with TRC's proposal and the subsequent authorization to proceed. This letter report summarizes our understating of the project, describes the recently completed geotechnical drilling and testing procedures, discusses our observations of subsurface conditions at the boring locations, and presents setback and cut slope recommendations related to the proposed surface mining operations at the Project Site. PROJECT DESCRIPTION The project site is located east of Weld County Road 61 and south of Weld County Road 64 near Kersey, Colorado. The site area is relatively flat and undeveloped and primarily vegetated with grasses and other vegetation. Proposed plan and profile or grading plan of the surface mine is not available at the time of writing this report. Based on our understanding of the project, existing features on the Project Site includes oil and gas well heads, water wells, and oil, gas and water pipelines. The depth and size of the wells and pipelines have not been provided to TRC. We understand that currently plans consists of providing a 50 -foot buffer from all pipelines and well heads and that the anticipated maximum excavation depth of the surface mining is 20 to 30 feet below existing ground surface (bgs). FIELD AND LABORATORY WORK Field Work TRC coordinated the completion of a total of eight (8) Standard Penetration Test (SPT) borings designated as TH-1 through TH-8 on April 29, 2024, at the approximate locations shown on the attached Boring Location Plan (Attachment A). TRC subcontracted a local drilling contractor, CTL Thompson, Inc. to complete the drilling and soil sampling. The boring locations were marked out in the field by TRC with the use of a hand-held GPS unit utilizing sub -foot accuracy. Prior to drill rig mobilization, TRC's drilling subcontractor contacted the Colorado 811 One Call utility �i TRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 2 notification service to verify public utility locations within public right-of-way and easements where these utilities may enter the Project Site. TRC geologist was on -site to inspect and log the borings. The borings were drilled to depths ranging from approximately 15 to 25 ft bgs using 4 -inch diameter continuous flight augers. The soil samples were obtained by driving a Modified California -type Sampler (2.5 -inch O.D.) 12 inches into the subsurface. The number of blows required for each 6 inches of penetration was recorded separately. The blow counts were summed for each sampling interval and were correlated to N -values determined by the Standard Penetration Test (SPT) ASTM D1586 by applying a correlation factor. When using a sampler size of 2.5 -inch O.D. a conversion factor of 0.85 for clay type soils and 0.63 for sand type soils is typically used. The SPT N -value serves as an indicator of relative consistency for cohesive soils and relative density of granular soils. The blow counts are shown on the attached boring logs prepared by CTL. (Attachment B), at the respective sample depths. Boring (TH-1, TH-5, TH-6, and TH-7) were drilled to a depth of 25 bgs, while borings (TH-2, TH-4, and TH-8) were terminated at 20 feet bgs. Lastly, boring TH-3 was drilled to a depth of 15 feet bgs. Upon completion, all test borings were backfilled to the approximate existing ground surface with the auger cuttings. Table 1 summarizes the coordinates, existing ground surface elevations, and boring termination depth. Table 1: Summary of Borings Boring Boring Coordinates' Elevation of Existing Ground Surface' Termination (ft. bgs)Z Depth to Auger Refusal (ft. bgs) Latitude Longitude TH-1 40.439167 -104.425000 4754 25 23.5 TH-2 40.435278 -104.400556 4710 20 12.0 TH-3 40.417324 -104.406412 4680 15 8.0 TH-4 40.407166 -104.412785 4663 20 20.0 TH-5 40.400045 -104.400439 4631 25 22.5 TH-6 40.399007 -104.427685 4667 25 23.0 TH-7 40.411876 -104.422103 4679 25 23.0 TH-8 40.427222 -104.419444 4708 20 14.5 1. Coordinates and elevations of existing ground surface at the boring locations are approximate and are based on a handheld GPS unit and Google Earth, respectively. 2. bgs= below existing ground surface Laboratory Work Upon completion of the borings, the soil samples were delivered to CTL Thompson, Inc. laboratory for subsequent geotechnical laboratory testing. Representative soil samples were selected for laboratory testing by TRC. Laboratory testing was performed on selected samples in order to determine soil index properties (moisture contents, particle gradations, and plasticity) and direct shear testing. The laboratory -testing program was conducted in accordance with applicable ASTM specification. The laboratory test results are provided in Attachment B. Table 2 below summarize the quantities of laboratory testing performed. TIRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 3 Table 2: Summary of Laboratory Testing Type of Test Applicable Test Standard Number of Test Conducted Moisture Content AASHTO T265 / ASTM D2216 9 Mechanical Grain -Size Analysis AASHTO T88 / ASTM D422 9 Atterberg Limits AASHTO T89, T90 / ASTM 4318 9 Direct Shear ASTM D3080 3 SITE CONDITIONS Geology According to the Colorado Geologic map, the site is underlain by Eolian deposits and Laramie formation. The Laramie formation is composed of sandstone, shale, claystone, and coal. It known for being the primary coal bearing unit in the Rocky Mountain region. Furthermore, Eolian deposits consists of clay, silt, and fine sands. These types of soils arise an issue of being collapsable soils. Subsurface Conditions This section presents the generalized subsurface conditions observed during the field exploration. During the field activities, TRC's on -site inspector also made observations of existing topsoil (gravel or other surface material) thicknesses, groundwater conditions, surface features, and other site observations deemed important to the proposed project, as applicable. Detailed descriptions of the subsurface conditions encountered within each boring are presented on each individual boring log included in Attachment B. It should be noted that lithological boundaries on the boring logs represent the approximate location of changes of soil types. In situ, the transitions may be gradual. The subsoils encountered in the test borings generally consisted of clayey sands and sandy clays over sandstone and claystone bedrock. Correlated N -values indicate the relative density of the clayey sands and sandy clays range from "loose" to "medium dense". Laboratory testing performed on representative samples indicates in -place moisture contents ranging from approximately 2.1`)/0 to 15.7% Atterberg Limits testing on the fine-grained portion of these soils indicates liquid limits ranging from non -plastic to 28`)/0 and plasticity indices ranging from non - plastic to 14%. Primarily sandstone bedrock was encountered between approximately 8 and 24 ft bgs and extended to the maximum depths explored. The sandstone was described as brown, rust, white, slightly moist, hard to very hard. Claystone was encountered below the sandstone layer in boring TH-1 and extends to the termination depth of the boring. Claystone can be described as grey, rust, slightly moist, medium hard to hard. Ground Water Observations for groundwater were made during drilling and shortly after completion in each test boring. Groundwater was not encountered at all test boring locations except for boring TH-5 where it was encountered at a depth of approximately 24 feet bgs. It should be noted the presence, depth, and quantity of hydrostatic groundwater levels and upper (perched) saturation zones TIRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 4 should be expected to fluctuate seasonally based on variations in rainfall, climatic conditions, site surface runoff characteristics, evapotranspiration, permeability of on -site soils, continuity of pervious materials, irrigation practices, land use, and other factors. Consequently, any measured groundwater levels shown on the boring logs only represent conditions at the time the readings were collected and may thus be different at the time of construction, which can include levels encountered at shallower depths during periods of heavy precipitation. Static daily and seasonal groundwater levels and upper (perched) saturation zones would need to be determined through the installation and long-term monitoring of piezometers. This was outside of TRC's scope of work. Any changes noted in groundwater levels during the construction process may require a review of the recommendations presented in this memorandum. SLOPE STABILITY ANALYISS RESULTS In an effort to evaluate the global stability of potential slopes that would be created during surface mining activities, TRC performed a slope stability analysis using SLIDE2, Version 9.024, developed by RocScience, Inc. SLIDE2 is a slope stability computer modeling program that solves the stability of the cross-section with a two-dimensional limiting equilibrium method by analyzing numerous potential failure planes to find the critical failure surface that results in the lowest factor of safety (FOS) for the slope. For this analysis, a minimum acceptable value of factor of safety used is 1.5 pursuant to USACE guidance (Engineering Manual EM 1110-2-1902 Slope Stability) for long term slopes under static conditions. A minimum acceptable factor of safety of 1.1 was used in the analysis to evaluate potential effects of earthquake/seismic (pseudo -static) conditions. The FOS against sliding in the analysis is calculated using Bishop Simplified and Janbu Simplified Methods. A peak ground horizontal acceleration factor of 0.0643g was used for the approximate Project Site location based on the USGS Unified Hazard Online Tool (https://earthquake.usgs.gov/hazards/interactive/). This factor is the peak acceleration with 2 percent probability of exceedance in 50 years. It should be noted that due to the relatively shallow depth to bedrock, the horizontal acceleration factor was not adjusted to account for damping or amplification effects. A general cross section was developed as part of the slope stability analysis to evaluate proposed slopes ranging from 2H:1 V to 3H:1 V in grades. Soil information and shear strength parameters used were extracted from CTL report dated May 15, 2024, and are summarized in Table 3 below. Table 3: Soil Parameters Material Name Unit Weight (pcf) Saturated Unit Weight (pcf) Cohesion (psf) Phi (deg) Clayey Sand 120 N/A 25.0 28 Sandstone 130 N/A 5000 35 The FOS calculated for the various slopes analyzed are summarized in Table 4 below. TIRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 5 Table 4: Slope Stability Analysis Results Conditions FOS Minimum FOS 2H:1 V (static) 1.2 1.5 2H:1 V (pseudo-static/seismic) 1.1 1.1 3H:1 V (static) 1.8 1.5 3H:1V (pseudo-static/seismic) 1.5 1.1 2.5H:1 V (static) 1.5 1.5 2.5H:1 V (pseudo-static/seismic) 1.3 1.1 CONCLUSIONS The slope stability analysis indicates that a proposed 2H:1 V slope do not result in acceptable FOS, and therefore, should not be constructed. Therefore, shallower slopes were evaluated and determined that the maximum recommended slope to achieve an acceptable FOS of 1.5 for static conditions and 1.1 for seismic conditions is 2.5H:1V. Model geometry, slip surface, and FOS for the evaluated scenarios are provided in Attachment C. It is also anticipated that the preferred 50 -ft buffer as previously discussed would be appropriate as the slope failure surfaces appear to terminate near the crest of the slope and do not extend back. Although groundwater was not encountered in the boreholes at the time of the exploration, seepage that develops along the excavation sloped may develop localized shallow sloughing. This is not considered global instability and can be addressed during routine maintenance on a case -by -case basis. LIMITATIONS This letter report has been prepared for the Colorado Sand Company LLC for planning and permitting of the proposed surface mining activities at the project site located in Kersey, CO. Transfer of this report or included information is at the sole discretion of the Colorado Sand Company LLC. TRC's contractual relationship remains with the Colorado Sand Company LLC and limitations stated herein remain applicable regardless of end user. The opinions, conclusions, and recommendations presented in this memorandum have been formulated in accordance with accepted geotechnical engineering practices that exist in the area at the time this memorandum was written. No other warranty, expressed or implied, is made or should be inferred. The opinions, conclusions and recommendations contained in this memorandum are based upon limited information obtained from our investigation, which includes data from a limited number of widely separated discrete locations, visual observations from our site reconnaissance, and review of other geotechnical data provided to us, along with local experience and engineering judgment. An attempt has been made to provide for normal contingencies; however, the possibility remains that differing or unexpected conditions may be encountered during construction. If this should occur, or if additional or contradictory data are revealed in the future, TRC should be notified so that modifications to this memorandum can be made, if necessary. TRC is not responsible for tApriv TIRC Geotechnical Stability Report — Kersey Mine Kersey, Colorado May 24, 2024 Page 6 any conclusions or opinions drawn from the data included herein, other than those specifically stated, nor are the recommendations presented in this memorandum intended for direct use as construction specifications. The opinions presented in this memorandum are valid as of the present date for the property evaluated. Changes in the condition of the property will likely occur with the passage of time due to natural processes and/or the works of man. In addition, changes in applicable standards of practice can occur as a result of legislation and/or the broadening of knowledge. Furthermore, geotechnical issues may arise that were not apparent at the time of our investigation. Accordingly, the opinions presented in this memorandum may be invalidated, wholly or partially, by changes outside of our control. Therefore, this memorandum is subject to review and should not be relied upon after a period of three years. Similarly, this memorandum should not be used, nor are its recommendation applicable, for any other properties or alternate developments. We trust this report contains the information you require and thank you for the opportunity to work on this project. Please consider our firm for future geotechnical services as needed. Sincerely, TRC Engineers, Inc. Nizar Altarawneh, P.E.* Staff Geotechnical Engineer Shawn D. McGee, P.E. Geotechnical Engineering — Office Practice Leader cc: Grant Waldie, PE, P.Eng., PMC and Dustin Krajewski, PE (TRC) Attachments: A - Boring Location Plan B — Field and Laboratory Data (provided by CTL) C - Slope Stability Analysis TIRC Geotechnical Stability Report — Kersey Mine May 24, 2024 Kersey, Colorado Attachment A: Boring Location Plan �i TRC 535891 -Colorado Sand_Kersey Mine Project Kersey, Colorado ;THI:,1 40.439,1_67', -104.425004 ' TH-2 4045278'....J04.400556` TH,B 40,427222`; -104.,419444' t 4 a \TFi`-7D.41.876"!'1'04,422103" kTH-4¢40.4071I66-y-104.41122785' , p , a %`° 0714'1 f !zt '11. Google Earth hi�pzd%Y.7D24 Airbus Note: Boring locations shown represent locations determined with hand held GPS unit utilizing sub -foot accuracy and does not represent field survey. Legend Geotechnical Borings Geotechnical Stability Report — Kersey Mine May 24, 2024 Kersey, Colorado Attachment B: Field and Laboratory Data (provided by CTL) h‘i TRC CTLITHOMPSON GEOTECHNICAL INVESTIGATION Kersey Sand Mine County Road 61 and County Road 64 Kersey, Colorado Prepared for: TRC Companies 1526 Cole Blvd, Suite 150 Lakewood, Colorado 80401 Attention: Grant Waldie Project No. FC11079.001-125 May 15, 2024 CTLIThompson, Inc. Denver, Fort Collins, Colorado Springs, Glenwood Springs, Pueblo, Summit County — Colorado Cheyenne, Wyoming and Bozeman, Montana Table of Contents Scope Summary Of Conclusions Site Conditions Previous Investigation Investigation Subsurface Conditions Groundwater Limitations FIGURE 1 — LOCATIONS OF EXPLORATORY BORINGS FIGURE 2 - SUMMARY LOGS OF EXPLORATORY BORINGS APPENDIX A - RESULTS OF LABORATORY TESTING Scope This report presents the results of our Geotechnical Investigation for the proposed sand mine in Kersey, Colorado (Figure 1). The purpose of the investigation was to explore the subsurface conditions, and provide material information and testing results. The scope was described in a Service Agreement (No. FC-23-0426 CM -1) dated April 22, 2024. Evaluation of the property for the presence of potentially hazardous materials was not included in our work scope. The report was prepared from data developed during field exploration, and field and laboratory testing. The report includes a description of subsurface conditions found in our exploratory borings. The report was prepared for the exclusive use of TRC Companies and your team. Our findings are summarized in the following paragraphs. Summary Of Conclusions 1. Strata encountered in our borings generally consisted of clayey sands and sandy clays over sandstone and claystone bedrock. Primarily sandstone bedrock was encountered between approximately 8 and 24 feet and extended to the maximum depths explored. 2. Groundwater was measured at an approximate depth of 24 feet in one boring during drilling. Groundwater levels may fluctuate seasonally and rise in response to precipitation, irrigation and changes in land -use. Site Conditions The site is located east of Weld County Road 61 and south of Weld County Road 64 near Kersey, Colorado. The site is generally in a plains area and is primarily vegetated with grasses and weeds. At the time of our exploration the site was undeveloped with utilities and dirt roads. The project site is generally hilly. No water features or rock outcrops were noted onsite. Oil industry infrastructure and access roads were noted onsite. Previous Investigation CTL Thompson performed a Preliminary Geotechnical Investigation on a northern section of the site (Project No. FC11079.000-115), dated April 5, 2024. The previous investigation was reviewed in preparation for this report. TRC COMPANIES KERSEY SAND MINE CTLI T PROJECT NO. FC11079.001-125 1 Investigation The field investigation included drilling and sampling eight exploratory borings at the approximate locations presented on Figure 1 as selected by the client. The borings were drilled to depths of approximately 15 to 25 feet using 4 -inch diameter continuous -flight augers, and a truck -mounted drill rig. Drilling was observed by our field representative who logged the soils and bedrock and obtained samples for laboratory tests. Summary logs of the exploratory borings, including results of field penetration resistance tests and a portion of laboratory test data, are presented on Figure 2. Soil and bedrock samples obtained during drilling were returned to our laboratory and visually examined by our geotechnical engineer. Laboratory testing was assigned by the client and included moisture content, dry density, particle -size analysis, direct shear, and Atterberg limits. Results of the laboratory tests are presented in Appendix A and summarized in Table A -I. Subsurface Conditions Strata encountered in our exploratory borings generally consisted of 8 to 23 feet of clayey sands and sandy clays. Sandstone and claystone bedrock was encountered in all borings at 8 to 24 feet to the maximum depths explored. The sand encountered was loose to very dense and contained between 6 and 46 percent silt and clay sized particles. Groundwater Groundwater was encountered at a depth of 24 feet in one boring during drilling. Groundwater may develop on or near the bedrock surface or other low permeable soil or bedrock when a source of water not presently contributing becomes available. Limitations This report has been prepared for the exclusive use of TRC Companies, and the design team for the project, to provide geotechnical information for the proposed project. within about three years, we should be contacted to determine if we should update this report. Our borings and laboratory testing were determined by the client. The borings are representative of conditions encountered only at the location drilled. Subsurface variations not indicated by our borings are TRC COMPANIES KERSEY SAND MINE CTIJ T PROJECT NO. FC11079.001-125 2 possible. We believe this investigation was conducted with that level of skill and care ordinarily used by geotechnical engineers practicing under similar conditions. No warranty, express or implied, is made. If we can be of further service in discussing the contents of this report, or in the analysis of the influence of subsurface conditions on design of the structures or any other aspect of the proposed construction, please call. CTO THOMPSON, !Mr R.B. "Chip" Leadbetter, III, PE Senior Engineer TRC COMPANIES KERSEY SAND MINE CTLI T PROJECT NO. FC11079.001-125 3 APPROXIMATE SCALE: 1,2000' 0 100002000' TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. PC11.0T9,001. SS VICINITY MAP (KERSEY,, CDLDR ODO) NOT TO SCALE LEGEND: TH-1 INDICATES APPROXIMATE • LOCATION OF EXPLORATORY BORING INDICATES PROPERTY BOUNDARY Locations of Exploratory Borings FIGURE 1 0 - 5 - - 10 - - 15 - - 20 - - 25 - - 30 - - 35 - - 40 TH-1 R./ %y -3 71M12 Nv PI=NP 50/11 50/9 �] 50/5 ®50/9 50/12 145/12 KERSE ZPLE On T PROJECT No. Fcllmeuol-125 TH-4 TH-5 TH-6 TH-7 TH-8 7.7 I: -2▪ LL▪ ,00--lo 3/12 2 �� W o-rvP �7 27/12 .-7 t� R! 21/12 Ty r� 112/12 eA 114/12 7,6H2 i16/12 -I 13/12 /.%31/12 4 ^7 10/12 9412 -rvP 25/12 8/12 42/12 34/12 50/12 50/10 0 5- 10- 15 - 20-F 25- - 30- - 35- - 40_ LEGEND: 7 /, SAND, CLAYEY, SLIGHTLY MOIST, LOOSE TO VERY DENSE, BROWN CLAY, SANDY, SLIGHTLY MOIST, VERY STIFF, BROWN ® SANDSTONE, SLIGHTLY MOIST, HARD TO VERY HARD, BROWN, RUST, WHITE CLAYSTONE, SLIGHTLY MOIST, MEDIUM HARD TO HARD, GREY, RUST b 7 DRIVE SAMPLE. THE SYMBOL 30/12 INDICATES 30 BLOWS OF 140 -POUND HAMMER FALLING 30 INCHES WERE REQUIRED TO DRIVE A 2.5 -INCH O.D. SAMPLER 12 INCHES. �L WATER LEVEL MEASURED AT TIME OF DRILLING. NOTES: 1. THE BORINGS WERE DRILLED ON APRIL 29TH, 2024 USING 4 -INCH DIAMETER CONTINUOUS -FLIGHT AUGERS AND A TRUCK -MOUNTED DRILL RIG. 2. THESE LOGS ARE SUBJECT TO THE EXPLANATIONS, LIMITATIONS AND CONCLUSIONS IN THIS REPORT. WC - INDICATES MOISTURE CONTENT (%). DD - INDICATES DRY DENSITY (PCF). SW - INDICATES SWELL WHEN WETTED UNDER OVERBURDEN PRESSURE (%). -200 - INDICATES PASSING NO. 200 SIEVE (%). LL - INDICATES LIQUID LIMIT. PI - INDICATES PLASTICITY INDEX. UC - INDICATES UNCONFINED COMPRESSIVE STRENGTH(PSF). SS - INDICATES SOLUBLE SULFATE CONTENT (%). Summary Logs of Exploratory Borings FIGURE 2 APPENDIX A RESULTS OF LABORATORY TESTING HYDROMETER ANALYSIS SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 "16 "10 *8 *4 3/8" 3/4" 1%" 3" 5"6" 8" 100 9010 8020 7030 z�Qca z 6040zcc 7••••• Lu - w50ce 50vace 4060 a3070 20 80 I i 1 10 90 I i A I p 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 2.0 2.38 4.76 9.52 19.1 36.1 76.2 12; 52200 0.42 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, CLAYEY (SC) Fro m TH - 1 AT 4 FEET GRAVEL 0 % SAND SILT & CLAY 18 % LIQUID LIMIT PLASTICITY INDEX 82 % NV % NP % HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 *16 *10 *8 *4 3/8" 3/4" 1/:" 3" 5" 6" 8'0 100 I I 10 90 80 I i 20 If i z 70 30 O Lu z a 60 40 ce ! U 50ce 50 w c.) w a ce w 40 60 G- 30 70 20 80 I I 10 90 pI�� I �� 100 001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 210 2.38 4.76 9.52 19.1 36.1 76.2 127 200 0.42 152 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, CLAYEY (SC) From TH - 2 AT 9 FEET TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. FC11079.001-125 GRAVEL 1 % SAND SILT & CLAY 42 % LIQUID LIMIT 24 % PLASTICITY INDEX 57 10% Gradation Test Results FIGURE A-1 HYDROMETER ANALYSIS SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 "16 "10 *8 *4 3/8" 3/4" 1%" 3" 5"6" 8" 100 0 I I 90 10 I 80 20 i I Z9 70 30 z c7) co J Q a 60 40 Lu z I-. w 50 I 50 v � a ce w 40 I 60 a- 30 I 70 I 20 80 ! I I 1 10 90 I i I I 0 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 2.0 2.38 4.76 9.52 19.1 36.1 76.2 12; 52200 0.42 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sample of SAND, CLAYEY (SC) From TH - 3 AT 4 FEET GRAVEL 0 % SAND SILT & CLAY 20 % LIQUID LIMIT PLASTICITY INDEX 80 % NV % NP % HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 *16 *10 *8 *4 3/8" 3/4" 1/:" 3" 5" 6" 8'0 100 I 10 90 80 I 20 i f 70 30 O Lu z ii)z co 60 40 w a ce U 50 50 w w w ce a 40 60 a I I 30 70 20 80 I I 10 90 0 I�� I �� 100 001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 210 2.38 4.76 9.52 19.1 36.1 76.2 127 200 0.42 152 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, SLIGHTLY CLAYEY (SP -SC) From TH - 4 AT 9 FEET TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. FC11079.001-125 GRAVEL 0 % SAND SILT & CLAY 10 % LIQUID LIMIT NV % PLASTICITY INDEX 90 % NP % Gradation Test Results FIGURE A-2 HYDROMETER ANALYSIS SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 "16 "10 *8 *4 3/8" 3/4" 1%" 3" 5"6" 8" 100 0 I 90 10 I 1 80 20 I 70 z 30 z (7) � J Q a 60 40 Lu z I -.z wo50 I 50 v a0 40 I Lu 60 a- 30 I 70 20 I 80 I i 1 10 90 I i A I 0 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 2.0 2.38 4.76 9.52 19.1 36.1 76.2 12; 52200 0.42 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, CLAYEY (SC) Fro m TH - 4 AT 14 FEET GRAVEL 0 % SAND SILT & CLAY 14 % LIQUID LIMIT PLASTICITY INDEX 86 % NV % NP % HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 *16 *10 *8 *4 3/8" 3/4" 1/:" 3" 5" 6" 8'0 100 10 90 I 20 80 I z 70 30 0 z 60 a 40 ce z U 50 z 50ce w10 w a ce w 40 60 G- 30 70 20 80 I I 10 90 0 I�� I �� 100 001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 210 2.38 4.76 9.52 19.1 36.1 76.2 127 200 0.42 152 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, CLAYEY (SC) From TH - 5 AT 19 FEET TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. FC11079.001-125 GRAVEL 0 % SAND SILT & CLAY 46 % LIQUID LIMIT 28 % PLASTICITY INDEX 54 % 14 % Gradation Test Results FIGURE A-3 HYDROMETER ANALYSIS SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 "16 "10 *8 *4 3/8" 3/4" 1%" 3" 5"6" 8" 100 0 90 10 80 20 z7030 o zc7)QLu coa 60 ! 40zz w50 f a50 v wwa4060 a3070 2080 1090I i I 0 100 .001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 2.0 2.38 4.76 9.52 19.1 36.1 76.2 12; 52200 0.42 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, SLIGHTLY CLAYEY (SP -SC) Fro m TH - 6 AT 9 FEET GRAVEL 0 % SAND 94 % SILT & CLAY 6 % LIQUID LIMIT PLASTICITY INDEX NV % NP HYDROMETER ANALYSIS I SIEVE ANALYSIS 25 HR. 7 HR. TIME READINGS U.S. STANDARD SERIES CLEAR SQUARE OPENINGS 45 MIN. 15 MIN. 60 MIN. 19 MIN. 4 MIN. 1 MIN. *200 *100 *50 *40 *30 *16 *10 *8 *4 3/8" 3/4" 1/:" 3" 5" 6" 8'0 100 I I 10 90 80 20 i f z 70 30 O z th co a 60 40 w a a z w 50 z 50 w c v w ce a 40 w 60 G- 30 70 20 80 I I 10 90 0 I�� I �� 100 001 0.002 .005 .009 .019 .037 .074 .149 .297 .590 1.19 210 2.38 4.76 9.52 19.1 36.1 76.2 127 200 0.42 152 DIAMETER OF PARTICLE IN MILLIMETERS CLAY TO SILT SANDS GRAVEL (PLASTIC) (NON -PLASTIC) FINE I MEDIUM I COARSE FINE I COARSE I COBBLES Sa m ple of SAND, SLIGHTLY CLAYEY (SP -SC) Fro m TH - 7 AT 14 FEET TRC COMPANIES KERSEY SAND MINE CTL I T PROJECT NO. FC11079.001-125 GRAVEL 0 % SAND SILT & CLAY 9 % LIQUID LIMIT NV % PLASTICITY INDEX 91 % NP % Gradation Test Results FIGURE A-4 Shear Strength by Direct Shear (Small Shear Box) iZ L E INTERNATIONAL Client TRC Companies Lab Ref Project Kersey Sand Mine Job FC11079.001 Borehole TH-1 Sample 3.5'-5' Test Summary Reference A B C Normal Stress 6.94 psi 13.89 psi 20.83 psi Peak Strength 3.72 psi 9.18 psi 11.78 psi Residual Stress N/A N/A N/A Rate of Shear Displacement Stage 1: 0.029000in/min Stage 1: 0.029000in/min Stage 1: 0.029000in/min Final Height 0.9856 in 0.9887 in 0.9743 in Sample Area 4.90873 in2 4.90873 in2 4.90873 in2 Maximum Shear Stress vs Normal Stress Peak Shear Stress psi 12.87-:- - 12.00 • Peak • 11.00 Angle of Shear Resistance 10.00 - 30.13 I Degrees 9.00= 8.1)0 Cohesion _ 10.17 Ipsi 7.00 6.00 _ 5.00 4.00 3.00 _ - • 2.00 1.00 -0.61 -, i I I t t 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 21.87 Normal Stress psi ELE International Page I of I FIGURE A-5 Shear Strength by Direct Shear (Small Shear Box) � L E hill INTERNATIONAL Client TRC Companies Lab Ref Project Kersey Sand Mine Job FC11079.001 Borehole TH-4 Sample 8.5'-10' Test Summary Reference A B C Normal Stress 6.94 psi 13.89 psi 20.83 psi Peak Strength 4.00 psi 6.97 psi 11.65 psi Residual Stress N/A N/A N/A Rate of Shear Displacement Stage 1: 0.029000in/min Stage 1: 0.029000in/min Stage 1: 0.029000in/min Final Height 0.9835 in 0.9770 in 0.9802 in Sample Area 4.90873 in2 4.90873 in2 4.90873 in2 Maximum Shear Stress vs Normal Stress Peak Shear Stress psi 12,24 11.00_ • �'- Peak • - Angle of Shear Resistanc 10.00 9,00 28,83 Degrees _ 8.00 Cohesion 7.007: I-0.10 I psi 6,00 5.00 - 4.00 3.00 _ - • 2.00 _ 1.00 0.00 _ -0.69=, _ �- , , , , 0.00 2.� 4,00 6.00 8.00 10.00 12.00 14,00 16.00 18.00 20.00 21,87 Normal Stress psi ELE International Page 1 of 1 FIGURE A-6 Shear Strength by Direct Shear (Small Shear Box) 0 L INTERNATIONAL Client TRC Companies Lab Ref Project Kersey Sand Mine Job FC11079.001 Borehole TH-7 Sample 13.5'-15' Test Summary Reference A B C Normal Stress 6.94 psi 13.89 psi 20.83 psi Peak Strength 3.15 psi 7.80 psi 12.59 psi Residual Stress N/A N/A N/A Rate of Shear Displacement Stage 1: 0.029000in/min Stage 1: 0.029000in/min Stage 1: 0.029000in/min Final Height 0.9852 in 0.9724 in 0.9872 in Sample Area 4.90873 in2 4.90873 in2 4.90873 in2 Maximum Shear Stress vs Normal Stress Peak Shear Stress psi 13.307 • 12.00 Peak Angle of Shear Resistance 10.00 _ �- 34.20 Degrees 8,00 Cohesion - -1.59 psi 6.00 4.00 2.00 0.00 -2.30-, 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 21.87 Normal Stress psi ELE International Page I of I FIGURE A-7 TABLE A -I SUMMARY OF LABORATORY TESTING LOT BLOCK DEPTH (FEET) MOISTURE CONTENT (%) DRY DENSITY (PCF) ATTERBERG LIMITS PASSING NO. 200 SIEVE (%) DESCRIPTION LIQUID LIMIT PLASTICITY INDEX TH 1 4 3.0 108 NV NP 18 SAND, CLAYEY (SC) TH 2 9 7.5 125 24 10 42 SAND, CLAYEY (SC) TH 3 4 3.5 NV NP 20 SAND, CLAYEY (SC) TH 4 9 3.0 NV NP 10 SAND, SLIGHTLY CLAYEY (SP -SC) TH 4 14 4.2 103 NV NP 14 SAND, CLAYEY (SC) TH 5 19 15.7 114 28 14 46 SAND, CLAYEY (SC) TH 6 9 2.1 NV NP 6 SAND, SLIGHTLY CLAYEY (SP -SC) TH 7 14 4.5 NV NP 9 SAND, SLIGHTLY CLAYEY (SP -SC) *NEGATIVE VALUE INDICATES COMPRESSION. TRC COMPANIES KERSEY SAND MINE CTLIT PROJECT NO. FC11079.001-125 Page 1 of 1 Geotechnical Stability Report — Kersey Mine May 24, 2024 Kersey, Colorado Attachment C: Slope Stability Analysis h‘i TRC O 1.2 Material Name Color Unit Weight (Ibs/ft3) Strength Type Cohesion (psf) Phi (°) Clayey Sand 120 Mohr -Coulomb 25 28 Sandstone 130 Mohr -Coulomb 5000 35 N O O o, Method Name Min FS Bishop simplified 1.2 o Janbu simplified 1.2 Ki -.-- • ••ii�iiii�i•iiiii♦i i♦♦iiiiii♦iiiiiiiiiii• ♦!i!!i!♦iliiiiiiiii!!i!♦i♦ ....•♦O•♦♦♦i♦!♦i♦!♦i♦i♦•ii♦i♦♦♦i♦•••:+:♦ ••♦!♦i♦♦♦!♦O•♦!♦i♦ ♦ ♦ i ♦ - ♦!♦♦♦iiiiliiliililiiliiiiliiliiii♦i �.^.,u ♦!♦i♦itii!!i!♦iii♦♦♦♦♦!ii!!i!♦liii♦i♦s• !♦♦i♦i♦♦i♦♦i♦•iii♦♦♦♦i♦♦•i•♦♦♦♦♦!♦♦!♦♦♦♦°•°•°•i♦• :'♦•!•♦•♦•i•♦•iii♦i•♦•!•i•♦•!•♦•iiiii•♦•ii•♦•i•♦•!•i•♦•!•♦•♦•i•♦•�•♦•♦•♦•i•♦•i•♦•i•i•♦�! •f•♦•!•♦•♦•!•!•i•!•♦•♦•♦•i•!•!•iii•••♦•♦•i•!•♦•!•♦•♦•♦•i•!•!•iii•••♦•♦•i• ♦i•OOOiiiiiiii♦i f♦•♦•i♦♦•ii•!•♦!!i!•ii♦•.♦!i.•ii!•!•i♦♦•!•i•!•♦!!•♦•ii♦•!!ii!•ii!!♦•i•♦•!•i•!•♦!!i!•ii♦•.♦!i.•ii!•!•i♦♦•!•i•1 •••iiiiiii♦♦•iiiiiii♦ ♦ii iiiiiiiiiiii.% ,�♦••iiiiiii♦iiiiiiiiiii•iiii♦iiiiiii♦iiii♦iiiiii♦ -♦!ii!♦iiili!♦♦i♦!!♦♦ii!♦♦♦i♦♦♦♦♦!♦♦!♦♦♦!♦♦11!♦i♦!♦♦•i•♦•♦ °�i!♦ii!♦!♦!i♦ m ♦!f! its • t s ��♦♦i•�t :•P i•• 'e'i•♦iiiiiiiiii♦i4iiif A..t ee QfyiF. ♦ I, ^, ii♦♦♦•♦ii♦ sissi!♦♦ii♦ii♦♦ ifs•♦ O 4444:4•::+:444.•-. i ♦•� ° r I -50 -25 0 25 50 75 100 125 150 175 200 225. A535891 1� Project -Colorado Sand_Kersey Mine Group Slope 2H:1V ScenarioMaster Scenario Drawn By NMA Company TRC Companies SLIDEINTERPRET 9.039 Date 05-13-2024 Fie Name Kes Mine.slmd �- 1.1 ► 0.0643 N N- ilfrm _ Method Name Min FS Bishop simplified 1.1 = Janbu simplified 1.0 O 0— N r �— 2 cv - - 0- •••••••••••••••••• ••iiiiiiiiiiiiiiiiiiiiiiiiiiiiiii• •iiiO•i•iiiiiiiiiiiiiiiiiiiiii �.�.�.�.��.�.�.��.��.�.�.�.�.�.�.�.�Oii��iiiiiiiiiiiiii iiiiiiii•••••iiiiiS•isi.��iS. ii'i'i'iii'i'•'i'isi i�•i'i'i'i••'s'�'•'i'i'ii'i'i•'a•i'i•i ii i�•ii'iW?+�0�� ••iiii• • ••i•iii•si*iii•••••i••�aiiiiiiiiiiiiiiiiiiiiiiO". 1 • • • • • • • • • • • • • • • • • • �•��ti•�� !.•iiiiiiiiiiiiiiiiiiiiiiiiii•. �`.. *: ••i• -25 0 25 50 75 100 125 150 175 200 225 25( Project Mine 535891 -Colorado Sand,,,,, illiN LIDEIMERPREf 9.034 RC_Kersey Group Slope 2H:lV Scenario2H: iV - Pseudo -Static Drawn By NMA Company TRC Companies DateOS-13-2024 File Name Kesry_Mine.slmd O to N 1.8 Material Name Color Unit Weight (Ibs/ ft3) Strength Type Cohesion (PA Phi 11 o Clayey Sand u 120 Mohr - Coulomb 25 28 Sandstone ■ 130 Mohr - Coulomb 5000 35 O to O O Method Name Min FS Bishop simplified 1.8 Janbu simplified 1.7 O 3 - o- - .••O❖•••••0•••.00•.0❖.'. •i'i'i'i'i'i'ii'i'i'�'�'i'i'i`ii'i'i'i'i'i'ii'i'�'�'�'�'i`�'�'i'i'�'i's'i'i'ii'i'i'i'i�`�'� •�•�•�•�•�•�.�. ••.'.;•.❖•❖O.❖.•.lO......;.�S�.M❖•❖•❖•••❖.❖•❖•❖.••❖.❖.•.9•••. 1 � •.... • • -100 -50 0 50 100 150 200 250 300 350 AN ii„,,, Project 535891 -Colorado Sand_Kersey Mine Group Slope 3H:1V ScenarioMaster Scenario Drawn By NMA Company TRC Companies SLIDEINTERPRET 9.039 Date 05-13-2024 Fie Name Kes Mine.slmd �- o o N O �n- 0 O O - Q 3 1 r.-: ii so•.000•. 0.0643 1.5 ll ... - Method Name Min FS Bishop simplified 1.5 Janbu simplified 1.4 ♦.............♦.. OO•rO�OO••OOOO•r.O'.:•:.:: iiiiiiiiiii•�•••�•i•i•iii ....•.r�..,rroo•yti000•.t.�:•.o. .a ...♦ i'.•.O•.'.•ri•�iOO❖..'.-+-.-: ii iiiiii•�•••�•ii•%:�:,:�:�:•iiai�i -100 -50 0 50 100 150 200 250 300 350 AIN ii„,,, LIDEINTERPRET Project 535891 -Colorado Sand_Kersey Mine 9.034 RCGroup Slope 3H:lV Scenarro 3H: iV - Pseudo -Static Drawn By NMA Company TRC Companies DateOS-13-2024 F//2 Name Kesry_Mine.slmd O ut— N o N - O v�— O O O '° - - 1 - ., 1.5 1 Material Name Color unit weight (Ibs/ ft3) Strength Type Cohesion (psi) Phi (°) Clayey Sand r— 120 Mohr - Coulomb 25 28 Sandstone ■ 130 Mohr - Coulomb 5000 35 ® 2.5 Method Name Min FS Bishop simplified 1.5 Janbu simplified 1.5 OO•..x.. .'::':°:•:O J: � ::'O:°:•:°:':•:':':❖•O'.OOO':O°.'.'O.•...... �•�•�.�.�.�•�.�.��.�•�.�•��.��•�•�•�.�.�•�.�.��.��.�..�. • ❖.•.OO••••O., 'i'iiii•�'i•�'�•ii'iiii*i•i�i�ii�i'i�ii�ii•ii'iii' �ii'i'i�iiii•.•" -50 0 50 100 150 200 250 300 AN i,,,,,, LIDEINTERPRET RCGroup Project 535891 -Colorado Sand_Kersey Mine 9.034 Slope 2.5H:iV Scenarro Master Scenario Drawn By NMA Company TRC Companies DateOS-13-2024 File Name Kesry_Mine.slmd O N 1.3 0.0643 O O N O L6 iiito Method Name Min FS Bishop simplified 1.3 Janbu simplified 1.2 O O O xxx -100 -50 0 50 100 150 200 250 300 Project 535891 -Colorado Sand_Kersey Mine h% ,,,,,,,, LIDEINTERPRET 9.034 RCGroup Slope 2.5H:iV Scenarro 2.5H:1V - Pseudo -Static Drawn By NMA Company TRC Companies DateOS-13-2024 File Name Kesry_Mine.slmd Rule 1.6.2(1)(d)(e)(f) Page 1 RULE 1.6.2(1)(D)(E)(F) NOTICE REQUIREMENTS (1) The Applicant shall: (d) Except for 111 Special Operation Permit applications, within ten (10) days after the Office notifies the Applicant that the application is considered filed, publish a public notice in a newspaper of general circulation in the locality of the proposed mining operation containing: (i) name and address of Applicant; (ii) location of the proposed mining operation by section, township and range and street address where applicable; (iii) proposed dates of commencement and completion of the operation; (iv) proposed future use of affected land; (v) location where additional information on the operation may be obtained; and (vi) location and final date for submitting statements of support or objections with the Office. (e) Except for 111 Special Operation Permit applications, the applicant shall mail or personally serve a copy of the notice in Rule 1.6.2(1)(d) immediately after the first publication to: (i) all Owners of Record of the surface and mineral rights of the affected land; and (ii) the Owners of Record of all land surface within 200 feet of the boundary of the affected lands. (f) As soon as designated by the Office, mail a copy of the Notice provided for in Rule 1.6.2(1)(d) to any other Owners of Record who might be affected by the proposed 112(9)(a) 110(5)(c) 110(5)(c) 112(9)(c) 110(5)(c) 112(9)(c) Page 19 Construction Materials Rule 1 mining operation. The Office shall designate such owners, if any, during its adequacy review process. (Not applicable to 111 Special Operation Permit applications.) Attachment 1 is a copy of the Public Notice to be published in the Greeley Tribune 10 days after the application is considered filed. A copy of this Notice will also be mailed to Owners of Record immediately following the first publication and any other Owners of Record designated by the Office during the review process. Attachment 2 is the Owners of Record of the surface and mineral rights of the affected land and all Owners of Record within 200 ft. of the boundary of affected lands. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Rule 1.6.2(1)(d)(e)(f) Page 2 ATTACHMENT 1 PUBLIC NOTICE Colorado Sand Company II, LLC; 2001 Kirby Drive Suite 360 Houston, Texas 77019, (970) 978-9858 has filed an application for a Regular (112) Construction Materials Operation Reclamation Permit with the Colorado Mined Land Reclamation Board under the provisions of the Colorado Land Reclamation Act for the Extraction of Construction Materials. The proposed mine is known as the Kersey Mine and is located at or near the S1/4 of Section 34, T06N, R63W of the 6th Principal Meridian and all of Sections 2, 3, 10, 11, 14, and 15, T05N, R63W of the 6th Principal Meridian in unincorporated Weld County, Colorado. The proposed date of commencement is February 2025, and the proposed completion is August 2045. The proposed future land use is rangeland. Additional information and tentative decision date may be obtained from the Division of Reclamation, Mining, and Safety, 1001 E. 62nd Avenue, Denver, Colorado 80216, (303) 866-3567, or at the Weld County Clerk and Recorder's office at 1250 H St. Greeley, Colorado 80631. Comments must be in writing and must be received by the Division of Reclamation, Mining, and Safety by 4:00 p.m. on July 29, 2024. Please note that under the provisions of C.R.S 34-32.5-101 et sue. Comments related to noise, truck traffic, hours of operation, visual impacts, effects on property values, and other social or economic concerns are issues not subject to this Office's jurisdiction. These subjects, and similar ones, are typically addressed by your local governments, rather than the Division of Reclamation, Mining, and Safety or the Mined Land Reclamation Board. Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 Rule 1.6.2(1)(d)(e)(f) Page 3 ATTACHMENT 2 OWNERS OF RECORD The Owner of Record of the surface and mineral rights of the affected land (Permit Area) is Wells Ranch, LLLP. Owners of Record of all land surface within 200 feet of the boundary of the Permit Area are: • 70 Ranch LLC • NGL Crude Terminals LLC • State of Colorado • SLW Ranch Company Colorado Sand Company II, LLC Kersey Mine Construction Material Regular (112) Operation Reclamation Permit Application June 7, 2024 U.S. Postal Service'" CERTIFIED MAIL' RECEIPT Domestic Mail Only For delivery information, visit our website at www.usps.coms. 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P 13ox o. 10 Itoz -.5 1 i ik� Sic. 895 'dity, g ate, 11S4xie a SF.rm3 ••,January2•23-•N) .•r ...a.47 See 'ever ef•rinstrucU•ns 0 r-9 a, P- Ir co rU 0 f� ul Q r -q P- 0 a P- 0 - ED fU r� O P- fU C7 r-9 P- rzCI a -- - 0 r - Er F` - Er r� ct] fU r —I O r`- rU u1 0 t` O U.S. Postal Service"' CERTIFIED MAIL`"' RECEIPT Domestic Mail Only For delivery information, visit our website at www.usps.com C f'81,;12413' h ft 4:+I Certified Mail Fee # 4 . 40 $ Extra Services & Fees (chock box, add lee as a8 e) ❑ Return Recelpt (hardcopy) $ ❑ Return Receipt (electronic) $ $0,(10 ❑ Certined Mall Restricted Delivery S 1. 0 rlla ❑ Adult Signature Requlrod $ - ❑ Adult Stgnaure Restricted Delivery $ 1 I ,1 i I_I Postage $ Taal PoAago and Fees 1. 10197 c;U X0.11 Ieb .(S))/091'2i]`�ft , U.S. Postal Service"' CERTIFIED MAIL" RECEIPT Domestic Mail Only For delivery information, visit our website at www.usps.conr='. USE Certified Mall Fee fi4.411 s Extra Services & Fees (check box, Add tae e! �el ❑ Return Receipt (nardcopy) S gill .Ilfi• ['Return Receipt (eiecirenic) $ f. i l , I I(1 ❑ Certifled Mail Restricted Delivery $ o I_t , 1� ❑Adult Signature Required S r s J,i- ❑Adult Signature Restricted Delivery $ } Postage Total Postage end Fees $$S. 79 U.S. Postal Service - CERTIFIED MAILL' RECEIPT Domestic. Mail Only For delivery information, visit our website at www.usps.coar G 11'`1 li 0t-11' pi- . Certified Mall Fee A Extra Services & Fees (check box, edd fee e3 eppropinBte) ❑ Return Receipt (hardcopy) S jI kI U1.1 ❑ Return Receipt (electronic) S ❑ Certified Mail Restricted Delivery S Adult Signature Required S ❑ Adult Signature Restricted Delivery S Postage $1 . Total Postage and Fees s'$f .11? T ' PS Form 3800, January 2023 PSu 75so-02.O00.so47 See Reverse for Instructions Jv ../077 .191?a24 PUBLIC NOTICE Colorado Sand Company II, LLC: 2001 Kirby Drive Suite 360 Hous- ton, Texas 77019, (970) 97B.9858 has filed an application for a Regular (112) Construction Materials Operation Reclamation Permit with the Colorado Mined Land Reclamation Board under the provisions of the Colorado Land Reclamation Act for the Ex- traction of Construction Materials. The proposed rnine is known as the Kersey Mine and is located at or near the Sl/4 of Section 34, To6N. R63W of the 6th Principal Meridian and all of Sections 2, 3, 10, 11, 14, and 15, T05N, R63W of the 8th Principal Meridian in unincorporated Weld County, Colorado. The proposed date of commencement Is March 2025, and the proposed completion is September 2045. The proposed future use of the land is rangeland. Additional Information and tenta- tive decision date may be obtained from the Division of Recla- mation, Mining and Safety, 1313 Sherman Street, Room 215. Denver, Colorado 80203, (303) 866-3567, or at the Weld County Clerk and Recorder's office at 1250 H St. Greeley, Colorado 80631, or the above -named applicant. Comments must be in writing and must be received by the DIW- sfnn of Reclamation, Mining, and Safety by 4:00 p.m. on August 8 2024. Please note that under the provisions or C.R.S 34-31.5-101 et seq. Cum• menti related to noise, truck traffic, hours of operation, visual Impacts, effects on property values, and other social or economic concerns are is- sues not subject to this Office's jurisdiction These subjects, and similar ones, are typically addressed by your local governments, rather than the Division of Reclamation, Mining, and Safety or the Mined Land Reclaim. non Board. Published: Greeley Tribune June 28, July 5, 12, 19, 2024-2058219 Prairie Mountain Media, LLC PUBLISHER'S AFFIDAVIT County of Weld State of Colorado The undersigned, Agent , being first duly sworn under oath, states and affirms as follows: 1. Hershe is the legal Advertising Reviewer of Prairie Mountain Media LLC, pubtisher of the Greeley Tribune. 2. The Greeley Tribune is a newspaper of general circulation that has been published continuously and without interruption for at least fifty-two weeks In Weld County and meets the legal requisites for a legal newspaper under Colo. Rev. Stat. 24-70-101. 3. The notice that is attached hereto is a true cop), published In the Greeley Tribune In Weld County on the following date(s): Jun 28 and Jul 5, 12, 19, 2024 tubscribed and sworn 1 me before me this, J day of U lN�� Notary Public (SEAL) SHAYLA NAJERA NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20174031965 MY COMMISSION EXPIRES July 31, 2025 Account Ad Number: Fee: 1126988 2058219 5204.00 10 I OCLASSIFIEDS pREELEyTR�BdN6pPM FRIO. JUNE 28, 2020 Public Notice Public Notice Public Notice Public Notice Public Notice Public Notice PUBLIC NOTICE Colorado Sand Company II, LLC; 2001 Kirby Drive Suite 360 Hous- ton, Texas 77019, (970) 9789858 has filed an application for a Regular (112) Construction Materials Operation Reclamation Permit with the Colorado Mined Land the provisions t vis ons o he Colorado LandRe clamation Reclamation at nAct for the Ex- traction of Construction Materials. The proposed mine is known as the N, sey R63W ine and is located at or near of the 6th Principal Meridian the d5all of Sections 4 of Section 34, , 10, 1816633 2, unincorporated 14, and 15, TOSN, R63W of the 6th Principal Meridian in nosed date Weld County, Colorado: The Proposed date of commencement is March 2025, and the proposed completion i5 September 2045. The proposed future • f the land to rangeland. Additional information ntl Recla- mation, decision date may fe obtained from the Division of 215. anon, Mining, and Safety, 1313 Sherman Street, Room 215. Denver, 86-3567, or at the Weld Count Clerkand °IRecorders03offce3)at61250 H St. Greeley, Colorado 80631, or the above -named applicant. Comments must be in writing and must be received by the Dlvi- f Reclamation, Mining, tl Safety by 4:00 p.m. on August 8.202 4. Please note that under the provisions of C.R.S 34-32.5301 et seq. Com- ments related t0 noise, truck traffic, hours of operation, visual impacts, effects on property values, and other social or economic concems are is- sues not sub/ect to this Office's jurisdiction. These subjects, and similar onese typically addressed by your local governments, rather than the Division of Reclamation, Mining, and Safety or the Mined Land Reclama- tion Board. Published: Greeley Tribune June 28, July 5,12.19.2024-2058219 NOTICE OF CONTRACTORS FINAL SETTLEMENT Notice is hereby given that on the 29th day of July 2024, at Platteville, Colorado, final payment will be made by the Town of Platteville to GLN CONSTRUCTION LLC 780 E. GARDEN DRIVE WINDSOR, CO 80550 hereafter called the "CONTRACTOR", for and on the account of the contract for the construction of a PROJECT described as OLIVE LANE SIDEWALK IMPROVEMENTS Any an trperson, copartnership, s as association or corporation who h unpaid claim against the said projectfor or on account of the furnishings f labor, materials, team hire, sustenance, provi- ions, plies of provender, or coon um d°by stchls or cont actorooran of ht and is subcontractors in or about the performance of said work, may at any file alme up to and verified statementdofthe ing iamount due d time of cand unpa id al settlement, on ac - ant of such claim. All such claims shall be filed with the Town of Platteville, 400 Grand Avenue, Platteville, Colorado, 80651. Failure on the part of a creditor to file such a statement prior to such settlement will relieve the Town of Platteville from any and all liability of such claims. TOWN OF PLATTEVILLE TOWN ADMINISTRATOR Troy Published: Greeley Tribune June 28, July 12, 2024-2061361 BEFORE THE COLORADO ENERGY AND CARBON MANAGEMENT COMMISSION N OTICE AND APPLICATION FOR HEARING DOCKET N0.240600151 TO ALL INTERESTED PARTIES AND TO WHOM IT MAY CONCERN: Pursuant to Rule 523.d, the Colorado Energy and Carbon Man- agement an 0 Order HndinCommission Violation ago nst M EIIII ied orpor tion (Operatorto the Commission rNo. 52060), to audicate allegations in the Notices of Alleged Viola- tion No.4022 7369, 403635852, 403659035, and 403760318. NOTICE IS HEREBY GIVEN, pursuant to: I) the general jurisdic- tion of the Energy and Carbon Management Commission of the State of Colorado under § 34-60-105, C.R.S.; 2) specific powers ?gr fed pursuant to § 34-60-10fi, C.R5.; 3) the Colorado Atlminis- sion'se Procedures Act at § 24.4105, C.R.S.; ntl 4) the Commis - 's Series 500 Rules at 2 C.C.R. 404-1, that the Commission has scheduled this matter for hearing before an ECMC Hearing Officer the following date, time, and location (subject to Date: September 18, 2024 Time: 9:00 a.m. Colorado Energy and Carbon Management Commission 1120 Lincoln Street Suite 801 Denver, CO 80203 Deadline for Affected Persons to Petition: August 19, 2024 The Notice and documents related to this matter can be found on our Hearing eFiling System Document Search" page here https://oitco.hylandcl oud.com/DN RCOGPubI icAccess/index. html. Select "Search for Docket Related Documents" from the pull -down menu, use the above "Docket Numbed', and select search". Published: Greeley Tribune June 28, 2024-2061047 Notice The Board of County Commissioners of Weld County, Colo- rado, on June 12, 2024, conditionally approved a Site Specific De- velopment Plan and Use by Special Review Permit USR23-0042. for the property and purpose described below. Conditional ap- Article68ofthis Titleplan 24,C.R.S.,fO for odrofthreeryearspursuaM to The complete case file may be examined in the office of the Clerk to the Board of County Commissioners, Weld County 0 Ad- TheiClerk to the) Board'sSOffl a can be co Itaited Colorado (970) 400- 4226 or egesickf, weld.gov. Docket #: 202416 Applicant Michael Boulter Farms, LLC 22019 County Road 54 Greeley, Colorado 80631 /o Liberty Power Innovations, LLC 110 S. Paige Avenue. Box 314 Glenda, Wyoming 82213 LLThMWa1 Descriplbn: Lot B of Amended Recorded Exemption, 6• shi36, being part of the 5 h Range 64 West /of the 6th P.M,Weld County2 S1/2 SW1/4 of Section 31, , North, Colorado Type ntl bte g of Approved Use: For n Oil ntl Gas Su port Facility (Compressed Natural Gas [CNG] Station) in [he A fAgri- ulturaD Zone District Side of Parcel: 26.675 acres, more or less Failure to abide by by the terms andconditions of approval will Bosalt in a forfeiture of the vsted property right. ard of County Commissioners Weld County, Colorado Dyed: tune 26, 2024 Published: June 28, 2024, in the Greeley Tribune - 2061415 Notice of Second Reading of Ordinance Pursuant to the Weld County Home Rule Charter, Ordinance Number 202412 was introduced o first reading June 10, 2024, and a public hearing and second reading was held on June 24, 2024, with no change being de to the text of said Ordi- . A public hearing and thirdreadingis scheduled to be h4eld in the Chambers of the Board, located within the Weld County Administration Building, 1150 0 Street, Greeley, Colorado the 1, on nJul f Bald Ord lllp persons aresri any manner interested in be heard. In accordance with the Americaned swth°Di Disabilid and ties Act if special accommodations are required in order for you to participate in this hearing, please ntact the Clerk to the Board's Office at (970) 400.4225 prior to the day of the hearing. Any backup material, exhibits or information previously submit- ted to the Board of County Commissioners concerning this mat- ter may be examined in the office of the Clerk to the Board of County Commissioners, located within the Weld County Admin- istration Building, 1150 O Street Greeley, Colorado 80631, be- tween the hours of 8:00 am. and 5:00 p.m., Monday thru Friday, wmay be accessed through the Weld County website (www. eld.gov). Email messages sent to an individual Commissioner maemail y not be included in the a file. To ensure Ineusbn of your correspondence into the case file, please send a copy to egesick®weld-9ov. Ordinance No. 2024-12 Ordinance Thaw Chapterb2 Admintter of istration and Reenacting, Weld nCounty Code ° Board of Counnty Commiussioners 4, at 9:00 a.m. Weld County, Colorado Dated: June 26.2024 Published: June 28, 2024, in the Greeley Tribune - 2061417 NOTICE OF OPEN MEETING FOR NEARING ON PETITION FOR EXCLUSION OF REAL PROPERTY FROM THE POUDRE VALLEY FIRE PROTECTION DISTRICT NOTICE IS HEREBY GIVEN to all interested persons that a Peti- tion for Exclusion of real property has been filed with the Board Boarid of Directorseh. fixed Tuesda , Fire Protection'fJullc 2004, Colorado 80524. at the hour of as the date, 2Remington timend place ofanStreet, meeting at which such Petition shall be heard. The name and Severance ress of the Petitioner is: own of Severance Town Hall 3 South limber Ridge Parkway PO Box 339 Severance, CO 80546 The property more o to be excluded from the District consists of 11.683 acres r less and is generally described as follows: That portion of Weld County Road 19 located in Sections 3,4, 9 & 10, Township 7 North, Range 67 West of the 6th P.M., Petition for Exclusion °which is a available foor public viewing at the District's ere g parties may pea t such hearing to show cause In writing why such Petition sRould riot be granted. BY ORDER OF THE BOARD OF DIRECTORS OF THE POUDRE VAL- LEY FIRE PROTECTION DISTRICT. POUDRE VALLEY FIRE PROTECTION DISTRICT Ctialr/ Martina Wilkinson Published: Greeley Tribune June 28,2024-2061362 Notice The Board of County Commissioners of Weld County,. Colo- rado, on June 12, 2024, conditionally approved a Site Specific De- velopment Plan and Use by Special Review Permit, USR24.0007, for the property and purpose described below. Conditional ap- proval of this plan creates a vested property right pursuant to Article 68 of Title 24, C.R.S., for a period of three years. The complete case file may be examined in the office of the Clerk to the Board of County Commissioners, Weld County Ad - The Clerk Ad- ministration the Board's Office 150 0 can b contacted at Colorado (970) 44.- 4226 or egesick@weld.gov. a con Docket it: 2024-21 qp lira cr 1 and Brenda Bassett 131 13141 County Road 21 Platteville, Colorado 80651 befit Description:arfeLots A and B of Recorded Exemption, , Range being part h the S.M.. of Section 27, Township 3 North, Range 67 West eandO Intensity of A Weeded Use: A Campo d(u to three Type an spy Approved Campground p [31 spaces for tiny homes/RVs) outside of subdivisions and his- toric f Parcel: in the e (Agr, more or less Zone District Size Failure Parke: 3.6 ages, more or less result in a abide ort iture of he the vested propertys and irighins f approval will result of County Commissioners Weld County, Dated: June 36, 2026tlo Published: June 28, 2024, in the Greeley Tribune - 2061413 NOTICE The Director of the Oil ad Gas Energy Department of Weld County, Colorado, on June 25, 2024, approved a Site Specific De- velopment Plan and 1041 WOGLA Permit for the property and use described below. The 1041 WOGLA tlefln d writhe ComistrhenslYaP Weld Oil and as Location Assessment For the Colt CDP Area, approved vies e d County ogn April 8, 2020. Approval of this plan CERS for the remainder property frthe tht en year Colt CDP term.ursuant to Article 68 Title 24, DOCKET #:1041 WOGLA24-0012 - Noble Energy - Colt CDP - AB21- 30 Facility RECORDING # 4967961 APPLICANT: Noble Energy. Inc. 2115117th Avenue, Greeley, CO 80634 APPROVED USE: Construction and operation f a production facility receiving production from seventy-two (72) horizontal wells and associat- dequipment. LEGAL DESCRIPTION: NWl/arlI Section 21, Township 7 North, Range 64 West Of the 6th P.M., Weld County, Colorado Failure In to forfeture of the vested property and right of approval will re - OIL AND GAS ENERGY DEPARTMENT WELD COUNTY, COLORADO DATED: June 26, 2024 Published: Greeley Tribune June 28, 2024 - 2061461 NOTICE The Director of the Oil and Gas Energy Department of Weld CoColorado, IPlan and 1041 Won June OGLA P 2024, ermit for thoved a e. Specific De- velopment ,property an pure described below. The lure WOGLA was s defined in a Comprehensive ap- Weld Oilroved and(Gast LocationnAssessment for the C It CDP Area, approved by Weld County on April e, 2020. Approval of this plan creates a vested property right pursuant to Article 68 of Title 24, C.R.S., for the remainder of the ten year Colt CDP term. DOCKET #:1041 WOGLA24-0010 - Noble Energy - Colt CDP - AB17- 09 Pad RECORDING # 4967960 APPLICANT: Noble Energy, Inc. 2115117th Avenue, Greeley, CO 80634 Construction5 and operation of a well pad containing twenty-four (24) horizontal wells and associated equipment LEGAL Range 64 Wesstolthe-6th P M, Weld County4 Section 17, Colo Colorado Township T North, Failure to abide by the terms and conditions of approval will re - It in a forfeiture of the vested property right OIL AND GAS ENERGY DEPARTMENT WELD COUNTY, COLORADO DATED: June 26, 2024 Published: Greeley Tribune June 28, 2024 - 2061457 NOTICE The Director of the Oil d Gas Energy Department of Weld County, lPlan and 1041 WJune OGLA P 2024, ermiit, for thoved a e. SpecificDe- velopmentnpropeo an e described below. The lure WOGLA was administratively ap- proved accordingtoLocation Assessment the Comprehensive Weld ve and Gas Location Assessment for the Colt CDP Area, approved byWeld County onright April 8, 2020. Approval of this pin C.• rtes a vested property right pursuant to Article 68 of Tithe 24, R.S., for the remainder of the ten year ColtIt CDP term. DOCKET #:1041 WOGLA24-0011 - Noble Energy - Colt CDP - AB20- 06 Pad RECORDING # 4967958 APPLICANT: Noble Energy, Inc. 2115117th Avenue, Greeley, CO 80634 APPROVED USE: Construction and operation of a well pad containing twenty-four (24) horizontal wells and associated equipment Range 6DESCRIPTION: W RI TIO a 6th1P.M., Weltl County, 20, oTownship 7 North, rado Failure to abide by the terms ad conditions of approval will re - It in a forfeiture of the vested property right OIL AND GAS ENERGY DEPARTMENT WFID COUNTY, COLORADO DATED: June 26, 2024 Published: Greeley Tribune June 28, 2024 - 2061458 NOTICE The Director of the Oil and Gas Energy Department of Weld County, Colorado, on June 25, 2024, approved a Site Specific De- velopment Plan and 1041 WOGLA Permit, for the property and puse described below. The 1041 WOGLA was administrative y ap- roved according to procedures defined in the Comprehensive Weld e. Oil b dG. Location Weld County o A Assessment e, 2020. Approvalofthis CDP rl n create y April pan ales a vested property right pursuant toArticle 68 of Title 24, C.R.S., for the remainder of the ten year Colt CDP term. DOCKET #: 1041WOGLA24-0013 - Noble Energy - Colt CDP - AB28- 08 Pad RECORDING* 4967959 APPLICANT: Noble Energy, Inc. 2115117th Avenue, Greeley, CO 80634 APPROVED USE: Construction and operation of a well pad containing twenty-four (24) horizontal wells and associated equipment. Range 64 West oflhe 6th 1P M,Weld County, Coloradohip 7 North. Failure to abide by the terms and conditions of approval will re - It in a forfeiture of the vested property right. OIL AND GAS ENERGY DEPARTMENT WELD COUNTY, COLORADO DATED: June 26, 2024 Published: Greeley Tribune June 28, 2024 - 2061463 NOTICE The 1041 WOGLA Hearing Officer for the Oil and Gas Energy De- partment of Weld County, Colorado, on June 13, 2024, approved theipr Specific Development descr ed) below. 1041 0y4 oW sot this plan cre- ates • for vested. priod of three right yeapursuant t Approval 68 of Title 24, C. s. DOCKET it: 1041WOGLA23-0071 - MDS Energy Development LLC - Castor 29 Pad RECORDING it: 4967963 APPLICANT: MDS Energy Development LLC 409 Butler Rd. Suite A Kittanning, PA 16201 APPROVED USE: 77 Well Pad & Production Facility T8N-R59W, Sec 29 Proposed Commencement 3rd qtr 2024 LEGAL 1/4 oN4NE1f Section 29, Township 8 North, Range 59 West of the fith P.M., Weld County, Colorado result e Failure tin a forfeiturbide e of the vested the terms sipp property conditions hi f approval will OIL AND GAS ENERGY DEPARTMENT ope yrig WELD COUNTY, COLORADO DATED: June 26,2024 Published: Greeley Tribune June 28, 2024-2061426 NOTICE The 1041 WOGLA Hearing Officer for the Oil and Gas Energy De- partment of Weld County, Colorado, on June 13, 2024, approved a. Site Specific Development Plan and 1041 WOGLA Permit for ties a property and use described below. Approval of this plan cre- ates a • r a property d of three yearsursuant to Article 68 of Title 24, C. period DOCKET #: 1041WOGLA23-0073 - Kerr McGee - Larkspur Fed 4- 32HZ RECORDING tt 4967962 APPLICANT: Kerr-McGee Oil & Gas Onshore LP 109918th Street suite 700 Denver, CO 80202 APPROVED USE: Combined ten (10) well pad and production facility. Sec. 5, T2N-R66W 5EN W Proposed commencement: 3rd quarter of 2024 LEGAL DESCRIPTION: SE1/4NW1/4 of Section 5, Township 2 North Range 66 West of the 6th P.M., Weld County, Colorado Failure to abide by the terms and conditions of approval will re - It in a forfeiture of the vested property right. OIL AND GAS ENERGY DEPARTMENT WELD COUNTY, COLORADO DATED: June 26,2024 Published: Greeley Tribune June 28,2024-2061454 NOTICE AS TO PROPOSED AMENDMENT OF 2024 BUDGET POUDRE HEIGHTS VALLEY METROPOLITAN DISTRICT WELD COUNTY, COLORADO NOTICE IS HEREBY GIVEN, that the necessity may arise for an amendment eights Valey Metropolitan ° tan Dstrict f the r( he "District").24 budget of hrA copyofHthe proposled 2024 amended budget, if necessary, file in the office of the Court,u a A, Fort Collins, I ns, Colorado 80525, wCentennial Consulting herepsame9 s avail- able et ill be for aansidereublic t inspection. sThe meeting of throposed e District to be hamended eld July 9, 2024 at 1:30 p.m. via video/telephone conference, Zoom access information below. Any Interested elector within the Dis- trict may, at any time prior to the final adoption f the 2024 am ded budget inspect the 2024 amended budget and file or register any objections thereto. Zoom information: https://zoom. us/j/99780232113?pwd=EmkmxKl4fgVRZw6GWdmHM3gA0oWen.1 Meeting ID: 981780232113 Passcode: 865831 Dial In: l-719-359-4580 POUDRE HEIGHTS VALLEY METROPOLITAN DISTRICT By: /s/ Paula J. Williams Attorney for the District Published: Greeley Tribune June 28, 2024-2061493 District Court Weld County, Colorado 9019th Ave, Greeley. CO 80631 In • Eddward°SchmeThete of: Party without Attorney: Michelle Shockley 196 Commander Circle Erie, CO 80516 Case Number: 2024PR150 Division: 1 NOTICE OF NEARING BY PUBLICATION PURSUANT TO To:: Mercedes Lopez and Nicole SchmMtje A hearing on Application for Probate of Will for Keith Edward Schmedhe ill be held at the following time and location or at a later date to which the hearing may be continued: De: July 24, 2024 Time: 8:00 a.m. Division: ] Address: 90190 Ave, Greeley, CO 80631 The hearing will take approximately 30 moues Published: Greeley Tribune June 28, July 5, 12,2024-2061359 CITY OF GREELEY NOTICE OF FINAL PAYMENT PUBLIC NOTICE This is to notify all persons interested that the City of Greeley will make final payment on or about July 11, 2024, to the follow- ing contractor on the project specified: Dfalco Construction Company P.O. Box 820, Longmont CO 80502 Centerplace Channel Phase II PROJECT #F23-07-065 Anyone having claims in connection with the above project must file .me with Purchasing Manager at Purchasing@Greeleygov. com no later than July 8, 2024. Dated this 25th day of June 2024, at Greeley, Colorado. City of Greeley, Purchasing Division PUblished: Greeley Tribune June 28, 29,2024-2061216 Pubic Notice Please note that Special Education Records of students whose services ended between 6/30/2018 and 7/1/2019 with Centennial BOCES will be purged on July 24. 2024. If you want to pick up 2024. (Cai11970-352-7404 extensi°n 1107 f4rfuli for nformatioln l7, Published: Greeley TRibune June 26. 28. 29, 30, July 3, 5, 6, 7. 2024-2060009 COMBINED NOTICE - PUBLCATION CRS §38-38-103 FORECLOSURE SALE NO. 240104 To Whom It May Concern: This Notice is given with regard to the following described Deed of Trust: On April 4, 2024, the under- regg d Public Trustee caused the Notice of Election and Demand tlating t the Deed t Trust described below t0 be recorded in he County of Weld records. Original His Spouse, Jeremy Michael Startzer, Joined Herein Pro Formal Hiss Dose,Danielle T.geEler Registration Sys- tems, In Be("MERS")Les) Mortganominee for Nations Reliable Lending, LLC., Its Successors and Assigns Current Holder of Evidence of Debt MidFirst Bank Date of Deed of Trust May County Of RecordingWeldRecordin27, 2016 Date of Deed of Trust 016 Recording Iel Information (Reception No. and/or Book/Page No.) 4209082 Original Principal Amount $211,105.00 Outstanding Princi l Balance $190,582.50 Pursuant to CRS 38-38-101(4)(i). you are hereby notified that the covenants of t e deed of trust have been violated as follows: Failure to make timely payments reed under said Deed of Trust and the Evidence of Debt secured thereby. THE LIEN FORECLOSED MAY NOT BE A FIRST LIEN. LOT 6, BLOCK 18, WILLOWBROOK SUBDIVISION ACCORDING TO INSTRUMENT RECORDED AUGUST 17, 2001 UNDER RECEPTION NO. 2875802, FORMERLY KNOWN AS SEARS FARM SUBDIVISION, COUNTY OF WELD, STATE OF COLORADO. 'Pursuant to that cer- tain Affidavit Re: Scrivener's Error Pursuant to C.R.S.§38-35- 1090) recorded in the records of Weld County, Colorado, on 9/3/2021 at Reception No. 4752749 to correct the legal descrip- tion. Purported Common address: 2712 Water Front St, Evans, CO 80620. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE OF SALE The current holder of the Evidence of Debt secured by the Deed of Trust described herein, has filed Notice of Election and De- mand for ale as provided by law and in said Deed of Trust. THEREFORE, Notice Is Hereby Given that I will at public auction, t 10:00 A.M. on Wednesday, 08/07/2024, at 1400 17th Avenue, Greeley, CO 80631, sell to the highest and best bidder for cash, Grantor(s)ehorrs°and assiggn s therein for the purhe pose of paring the indebtedness provided assigns said Evidence of Debt secured by the Deed of Trust, plus attorneys' fees, the expenses of sale and Cther items allowed by law. and will issue to the purchaser a ertificate of Purchase, all as provided by law. irst t Publication 7aton /12/ 2024 Last 2024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARRIES ENTITLED TO CURE MAY ALSO BE EXTENDED: DATE: 04/04/2024 State of C. Grimm, Public Trustee in and for the County of Weld, lorado By: Brigitte Grimm, Public Trustee g Thename, numberr of the business tpepre representing legalholderholder of the indebtedness is: Presen g Ilene Dell'Acqua #31755 McCarthy & Holthus, LIP 7700 E. Arapahoe Road, Suite 230, Centennial, CO 80112 (877)369-6122 Attorney File # CO -24 -987570 -LL The Attorney above N acting as a debt collector and Is attempt- ingt purpose. collect a debt Any information provided may be used for a TURN USED ITEMS INTO QUICK CASH MTN CLASSIFIEDS! TURN USED ITEMS INTO QUICK CASN MTN CLASSIFIEDS, Moe!,, JULY 5, 2024 cREELEyrNisuNE.coM I CLASSIFIEDS© 17 LEGAL NOTICES Public Notice Public Notice IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT Of COLORADO CIVIL ACTION NO.23-cv-02992-SKC-MEH WE ALLIANCE SECURED INCOME FUND, LLC, V. HAROLD SWAN, lit, et al. NOTICE OF ACTION TO: HAROLD SWAN, 111 Whose last known residence(s) is: 8041 Steeplechase Drive, Windsor, CO 80550 UNKNOWN SPOUSE OF HAROLD SWAN, 111 Whose last known residence(s) is: 8041 Steeplechase Drive, Windsor, CO 80550 SHELLY SWAN Whose last known residence(s) is: 8041 Steeplechase Drive, Windsor, CO 80550 UNKNOWN SPOUSE OF SHELLY SWAN Whose last known residence(s) is: 8041 Steeplechase Drive, Windsor, CO 80550 UNKNOWWhose last known residence(s) TENANT is: 8041 Steeplechase Drive, Windsor, CO 80550 UNKNOWN TENANT 32 Whose last known residence(s) is: 8041 Steeplechase Drive, Wintlsor, CO 80550 And ANY AND ALL UNKNOWN PARTIES CLAIMING BY, THROUGH, UNDER AND AGAINST THE HEREIN NAMED INDIVIDUAL DEFENDANT(S) WHO ARE NOT KNOWN TO BE DEAD OR ALIVE, WHETHER SAID UNKNOWN PARTIES MAY CLAIM AN INTEREST AS SPOUSE, HEIRS, HEIRS OF THE NAMED DEFENDANTS, DEVISEES, GRANTEES, BENEFICIARIES OR OTHER CLAIMANTS Whose last known residence(s) is/are: Unknown ten defenses, if any, in the abovleed to proceeldinguwithstheror Clerkrlof this Court, and to serve a copy thereof upon Plaintiff's attorney, Damian G. Waldman, Esq., Law Offices of Damian G. Waldman, P .A., PO Box 5162, Largo, FL 33779, telephone (727) 538-4160, fac- simile (727) 240-4972, email to service@dwaldmanlaw.com, within thirty (30) days of the first publication of this Notice the nature of this proceeding being a suit for foreclosure of mort- gage against the following described property, to wit: LOT 18, BLOCK 8, THE RANCH AT HIGHLAND MEADOWS SUBDIVISION, COUNTY OF LARIMER. STATE OF COLORADO . PARCEL N0.8636212018 A/K/A 8041 STEEPLECHASE DRIVE, WINDSOR, CO 80550 If you fail to file your response or answer, if any, in the above proceeding th the Clerk of this Court, and to serve a copy theruf upon the Plaintiffs attorney, Damian G. Waldman. Esq., Law Offices of Damian G. Waldmn, P.A., PO Box 5162, Largo, FL 337]9, telephone (727) 538-4160, facsimile (727) 290-4972, or email to service@dwaldmanlaw.com, within thirty (30) days of the first publication of this Notice, a default will be entered against you for the relief demanded in the Complaint or petition. DSA/TED ataWaldman Pinelll.unCoy this 3rd day of June, 2024. Damian G. Waldman, Esq. Florida Bar No. 0090502 Law Offices of Damian G. Waldmn, P.A. PO Box 5162 (ergo, FL 33779 Telephone: (727) Facsimile: (727) 2 0 40 4972 Email 1: damin@dwaldmnlaw.com E -Service: service@dwaldmanlaw.com Attorneys for Plaintiff Published: Greeley Tribune June 7, 14, 21, 28, July 5, 2024- 2056702 PUBLIC NOTICE Colorado Sand Company II, LLC: 2001 Kirby Drive Suite 360 Hous- ton, Texas 77019, (970) 978-9858 has filedan application for a ReguPermit with the Colorado rConstruction Materials OperationReclamation Mined and Reclamat on Boar d under the foprovisions of the Colorado Land Reclamation Act for the Ex- osed mine is known traction the Kersey Minecalon nd stlocateld at near the 51/4 of Section 34, TO6N, R63W of the 6th Principal Meridian and all of Sections 2, 3,1011, 14, and 15, T05N, R63 W of the 6th Principal Meridian in unincorporated Weld County, Colorado. The proposed date of commencement is March 2025, and the usseepof thetland is rantion geland. September Additional inform2045. The ationed andtenta- tive decision date may be obtained from the Division of Recla- mationDenver,, Colorado 80203, ((3nd 03)1313 866- 567, oratthe Weld CountRoom y Clerk and Recorder's office at 1250 H St. Greeley, Colorado 80631, or the above -named applicant. Comments must be in writing and must be received by the Divi- sion Reclamation, Mining, and Safety by 4:00 p.m. on August 8. 2024. Please note that under the provisions of C.R.S 34-32.5-101 et seq. Com- eHectts ts on pro e y values, and traffic,hours social or eeconomic concerns are is- suessues subject to this (Mice's jurisdiction. These subjects, and similar are typically addressed by your local governments. rather than the Division of Reclamation, Mining. and Safety or the Mined Land Reclama- tion Board. Published: Greeley Tribune June 28, July 5, 12, 19,2024-2058219 vember 10, 2024 or the claims may be forever barred. Bra ndon B. Houtchens Attorney far Personal iSilgii'gtntTrlus[, N.A. and 5n- dra L. Abbott 8018th Street, Suite 2201 Greeley, CO 80631 Published: Greeley Tribune July 5, 12, 19,2024-2062630 NOTICE TO CREDITORS Estate of THOMAS EDGAR NAY, aka THOMAS E. NAY, aka THO- MAS NAY, Deceased Case Number 2024PR30330 All persons having claims against the above named es- tate are required to present them to the personal represen- tative Couor n(t6y, District ooun or claims may be ftre'ver banedhe Nasruk Nay and Laurie Mahnken John, Personal Rep- resentatives PO Box 876434 Wasil la, AK 99687 Published: Greeley Tribune June 21, 28, July 5. 2024- 2059928 NOTICE TO CREDITORS Estate of Dennis Lynn Arnold, aka Dennis L Arnold, aka Den- nis nny Lynn Arnold, aka DennylLArnold, aka Denny Arnold, Deceased Case Number 2024PR30248 All persons having ag1 ttheabovenamclaims named estate e required to present them t0 the personal representative or t0 DistrictColorado Court r fbeforWeld e October 29, 2024ver or the claims may be ford. Travis L Arnold, Personal Rep- resentative 11600 W.44th Ave., #E05 Wheat Ridge, Published: Gree eyO Tribune lune 28, July 5, 12, 2024-2061254 NOTICE TO CREDITORS awtCindyLD Lou Deceased Case Number 2024 PR 30337 All I prrthesabove named tins tarJte tar required to present them tothpersonal represen- tative or to the District Court before December 1' 2024 or the 'aims may be forever barred. Carisa Lee DeBrine, Personal Representative 418 37th Street Published: 80Greeley Tribune June 28, July 5, 12, 2024- 2061245 PUBLIC NOTICE OF PETITION FOR CHANGE OF NAME CASE NO. 24C674 Public Notice is given on June 18, 2024, that a Change of Name f an Adult has been filed with the Weld Combined Court. The Petition requests that the. narne F. Haley Elizzabeth Delude be ed to: Haley Jade Norman By: Rachael Erickson Clerk of Court (SEAL) Published: Greeley Tribune Ju- ly 3, 5, 6.2024-2062150 NOTICE TO CREDITORS Estate of EVA MOEDA, a/k/a EVA M. PINEDA, Deceased Case Number 2U24PR30329 All strthesabove havingclaims med e - against required to present them are to the personal repCourt of rsaWeldtative or to District County, CoColora- do 2024 or the claims may be fm - ever barred Joaquin X. Pineda, Personal Rep Greeley,alive Colorado 80634 James A. Gustafson, #9756 Attorney for Personal Representative 1010 9th Avenue Greeley, Colorado 80631 Published: Greeley Tribune June 21, 28, July 5, 2024- 2059999 NOTICE TO CREDITORS Estate of STEVEN MICHAEL FRIEDMAN, Deceased Case Number 2024PR30301 Allpersons theabove named svclaims gain es- tate are required to present them to thepersonal tati eort District Corepresen- tative Weld County. Colorado on or before the claimspmay bbe forer 24, 2024 n ever bar Jess MCLaggn I #57974 GANT LAW, LLC Attorney for Personal Repre- sentative Gant Law, LLC 8213 W 20th St, Ste G GreGG 34 Published: ley, CO B0 uir.ley Tribune June 28, July 5, 12, 2024- 2061539 NOTICE TO CREDITORS West, aka Lof aVerne5 Wriest, aka LaVeme West, Deceased Case Number 2024 PR 30346 all personshaving st theabo enamclaims named es tate e required topresentthem t0 the personal DistrictCourt entative or toWeld Coun- ty, Colorado on or bete No - TURN USED ITEMS INTO QUICK CASK WITH CLASSIFIEDS, Public Notice Public Notice The Windsor Planning gCommCE OF ission onwild l h0 a PUBLIC HEARING on Wednesday, August 7, 2024, at 7:00 p.m., and the Windsor Town Board will hold a PUBLIC HEARING on Monday, August 12, 2024,, at 7:00 p.m. Thepurpose onpthe South Gate 8th (Alms Windsor) Annexation Rotating approximately 4.13 acres, to the Town of Windsor, and estab- lishing zoning of General Commercial (GC) zoning district. The object property has the current address of 7501 Highway 34, and is located north of Highway 34, south of South Gate Drive, approximately one-half mile west of Weld County Road 17. The property is an area of land being Lot 1, Recorded Exemption No. 0957 -8 -4 -RE 1043, and a portion of Lot 5, ock 1, South Gate Busies Park Subdivision Second Filing, tl heSoutheast Quarter (5E1/4) xty sev,neenny West ( 67W ) of the Sixth IPrI Principal North Meridian (6th P. M.Thesepublichof earings are held iState of n the Town Board Chambers on the third floor rado. (Please o ( entern the south side of the building.) Walnut Street, If Colo - If you wish to receive further information regarding this propos- al1alease send an email to the Planning Department: plannin @ dsorgov.com. To view the public hearing item material, com/83/Boards-Commissions. The Publease visit: lic He/aringwmatesalsgw ill be posted on the Friday before each of the above meeting dates. Interested citizens are invited to participate in the public hear- ings and provide comments on the proposal. To view the meeting only, LIVE stream through the Town of Windsor's Meetings On Demand website: w.windsorgov. conl/MeetingsOnDemnd. Karen Frawley Town Clerk Published: Greeley Tribune July 5,12,19, 26, 2024-2061132 Notice The Board of County Commissioners of Weld County, Colorado, on June 19, 2024, conditionally approved a Site Specific Develop - tt Plan and Use by Special. Review Permit, US24-0008, for he pproperty rid purpose described below. Conditional approval of this pIan creates a vested property right, pursuant t0 Article Th68 fimepl to case fileybe amarioexaree mine ecod in the office of the Clerk to the Board of County Commissioners, Weld County Ad - The Clerk Ad- ministration the Boards Office can be contacted rat (9704200- 4226 or egesick@weld.gov. pDpocket#:2024-29 Cntlltdpher Cannon, Curtis Montgomery Cannon, the 225 Dundee Avenue, iUnit gwtOn Trust Greeley, Colorado 80634 c/o Pivot 601 WewettaStreet, #700rt58, LLC, and Pivot Solar 60, LLC Denver. Colorado 80202 Legal Description: Lot B of Recorded Exemption, RE -410; being part of the NE1/4 of Section 23, Township 6 North, Range 65 Type West of the 6th P.M., Weld CountyColorado (SEE) outtsildeiieof rsubdiviissiionrsvan historic townsiters in the lA So(Agricultural) Parcel : : 7635 acres, more or less Failure to abide by the terms and conditions of approval will result in a forfeiture of the vested property right. Board ire co gty,C Commissioners Dated: July 3, 2024 Published: July 5, 2024, in the Greeley Tribune - 2063029 Notice The Board of County Commissioners of Weld County, Colorado, on June 19, 2024, conditionally approved a Site Specific DeveIOP- e t Plan and Use by Special Review Permit, USR24-0004, for the property and purpose described below. Conditional approval 6F Chi tiIan creates a vested property right, pursuant to Article 8 of Title let C.R.S., fora period of three years. The complete trio file may be examined in the office of the Clerk to the Board of County Commissioners, Weld County ministration 31. The Clerk to the Board's Office 150 0 Street, be contaGreelected at (970400- 4226 or egesick@weld.gov. DOCket#:2024-23 WorrApplicant: Livestock, LLC 22257 County Road 52 Greeley, Colorado 80631 c/o Pivot Solar 50. LLC, and Pivot Solar 51, LLC 1601 Wewatta Street, Suite #700 Denver, Colorado 80202 part • Description: Lot B of Recordetl Exemption, RE -3136; being West of tf he 6th P.M., Weld Coune SW1/4 of Section ty, Colorado 5 North, Range 65 Type and ',noisily of Approved Use: For a Solar Energy Facility (SEF) outride of subdivisions and historic townsites in the A (Ag- ricultural) Zone District Size of Parcel: 72.5 acres, more or less Fall r to forfeiture of the vested d conditions of approval will re- sult • of County Commissioners property rig Weld County, Colorado Dated: July 3, 2024 Published: July 5. 2024, in the Greeley Tribune -2063025 Notice The Board of County Commissioners of Weld County, Colorado, on Develop- ment and4UsenbyiSpeci la approved Perite mit, U5 219.0006,1 for Special . the property and purpose described below. Conditional approval 68 f this plan creates a vested property years. The t0 Article of Title let C.R.S., fora period of three yea 1 . The complete case file may be examined n the office of the Clerk to the Board of County Commissioners, Weld County 31. Ad- Thministration Building, 's O 0 Street, Greeley, Colorado 80631. e Clerk si the Board's Office to be contacted at (9]0) 400 - Doc et • egesick@weld.gov. Docket#:2024-24 Cynthia Kennedy 28339 County Road 44 Kersey, Colorado 80644 c/o Pivot 601 WewaSolar 46, LLC, and Pivot eS#70O Solar 4], LLC Denver, Colorado 80202 Legal Description: Lot B of Recorded Exemption, RECX14-0002; being part of the 51/2 SW1/4 of Section 14, Township 4 North, Range 64 West of the 6th P.M., Weld County, Colorado 'type antl Infonslty fit ringMtge. Use: For a Solar Energy Facility (SEF) outride of subdivisions and historic townsites in the A (Ag- 'cultural) Zone District Size of Parcel: 76.28 acres, more or less Failure to abide by the terms and conditions of approval will Boult in a forfeiture of the vested property right ard of County Commissioners Weld County, Colorado Dated: July 3, 2029 Published: July 5, 2024, in the, Greeley Tribune - 20603027 NOTICE OF FINAL SETTLEMENT TOWN OF KEENESBURG NOTICE is hereby given that final settlement will be made on or bout July 17, 2024, on a Construction Contract between the Town of Keenesburg and Can Do Concrete Construction Inc. ,C'Contractor") for a Town street project Any person, co -partnership, association of persons, company, or sus- tenance,on that has provisions, provender,hed ' or othersuppliesused oteam r con- thmed by the Contractor identified above or an subcontractor ereof in or about the performance of the worn contracted to be done or that has supplied rental machinery, tools, orequip- ment to the extent used in the prosecution of the work whose claim therefor has not eenpa bytheContactoror subcon- tractor, may i accordance with C.R.S. ''ggff 38-26.107(1) file with amount duebandunpaid Manager n a count verified claim, which fstate me,n must be filed or before July 16, 2024 Published: Greeley Tribune July 5, 6, 2024-2062692 LEGAL NOTICE The following Ordinance passed on the first reading at a regular meeting of this Evans dinancie arreuavalilable at www.evanscoloradoo. gov and Catrk, 1100 37th Street, Evans, O 80620orby calling (97 0) 475-1104. ORDINANCE N0.822.24 AN ORDINANCE REZONING CERTAIN PROPERTY LOCATED AT 239 35TH STREET FROM THE R-1 (LOW -DENSITY RESIDENTIAL) & R-2 (MEDIUM -DENSITY RESIDENTIAL) ZONE DISTRICTS TO THE 1-2 (MEDIUM INDUSTRIAL) ZONE DISTRICT Published: Greeley Tribune July 5.2024-2063037 Public Notice Public Notice COMBINED NOTICE - PUBLICATION CRS §38-38-103 FORECLOSURE SALE NO.24-0100 To Whom It May Concern: This Notice is given with regard to the followingllgublic Trustee described Deed of the: ti a orch f Elect 2024, the under - Demand relattng to the Deed of Trust described below to a recorded i I the County of Weld records. Original Grantor(s) PATRICIA M. TAYLOR Original Beneficlary(ies) CITIFINANCIAL CORPORATION Current Holder of Evidence of Debt CITIBANK, N.A., AS TRUSTEE Date of Deed of Trust July 30.2002 County of Recording Weld Recordin, 2002 RecortlingInformatiDate of Deed of Trust August (Reception No. Oand/or Book/Page No.) 2974082 Original Principal Amount $106.007.70 Outstanding Principal Balance $83,74&74 Pursuant to CRS 5538-38-301(4)(1), you are hereby notified that the covenants of the deed of trust have been violated as follows: oailure to pay th all ther paymentsrprovided for incipal and lin the Evidence nterest when uofiDebt securogether led by the Deed of Trust and other violations of the terms thereof THE LIEN FORECLOSED MAY NOT BE A FIRST MEN. LOT 19, BLOCK 3, VILLAGE SUBDIVISION SECOND FILING, AN AD- DITION TO THE TOWN OF EVANS, COUNTY OF WELD, STATE OF COLORADO. Purported Common address: 3501 MYRTLE ST, EVANS, CO 80620. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE OF SALE The current holder of the Evidence of Debt secured by the Deed of Td fordsalle ass herded has by law ndtice of in said Election ofnd De - Trust. THEREFORE, Notice Is Hereby Given that I will at public auction, at 10:00 A.M. on Wednesday, 07/31/2024, at 1400 N 17th Avenue, Greeley, CO 80631, sell to the highest and best bidder for ash, the said real property and all interest of the said Grantor(s), Grntor(g' heirs and a egg: therein, for the purpose rg pa trig the indebtednes provided in said Evidence p Debt of wren by the Deed of Trust, plus attorneys' fees, the expenses of sale and [her items allowed by law, and will issue to the purchaser a Certificate of Purchase, all as providedby law. First Publication 6/7/2024 Last Publication Publication Greeley Name of SALE nGreeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TOO CURE MAY A150 BE EXTENDED; BdgtteC. Grim2m, Public Trustee in and for the County of Weld. State of Colorado By: Brigitte Grimm, Public Trustee The name, address, business telephone number and bar regis- tration number of the attomey(s) representing the legal holder Of Attorney File SF 500 Attorney File # 0000001008as a 06332 9 t The Attorney a debtabove , Any -information t collector d and o attempt` tM1at purpose. provided may be used f COMBINED NOTICE - PUBLICATION CRS §38.38-103 FORECLOSURE SALE NO. 24-0097 To Whom It May Concern: This Notice is given with regard to the following c Trustee caused Pees hdescribed Deed of e: ti a orf Elecch t 2024, t Demand selatthe under. n011 he Deed of Trust described below to be recorded in the County of 1Neld records. Original Grantor(s) Wilson Leal Whitehead Original Beneficiary(ies) MORTGAGE ELECTRONIC REGISTRA- TION SYSTEMS, INC. AS NOMINEE FOR BROKER SOLUTIONS, INC. DBA NEW AMERICAN FUNDING, ITS SUCCESSORS AND ASSIGNS Current Holder of Evidence of Debt New American Funding, LLC Date of Deed of Trust May 15, 2019 County of Recording Weld Recording Date of Deed of Trust May 17, 2019 Recording Information (Reception No. and/or Book/Page No.) 4489987 Original 00 Outtstandinig Pre:di:al Balancipal AMOUnt nce $193 345.60 Pursuant to CRS 38.38-101(4)(i), you are hereby notified that the covenants of t e deed of trust have been violated as follows: Failure to pay principal and interest when due together with all other payments provided for in the evidence of debt secured by the deed of trust and other violations thereof. THE LIEN FORECLOSED MAY NOT BE A FIRST LIEN. THE EAST SO FEET OF LOTS, BLOCK 89, CITY OF GREELEY, COUN- TY OF WELD, STATE OF COLORADO APN #:O9610]103006 Purported common address: 1317 12TH STREET, GREELEY, CO 80631. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBEREDBYTHE LIEN IF THE DEED OF TRUST. NOTICE ce SALE The current holder hf the Evidence of Debt secured by the Deed of Trust, described herein, has filed Notice ofa Election and De- mand for sale Notice I He Hereby law and in said Deed of bast THEREFORE, Notice Is Hereby Given that 1 will at public auction, at A.M. 80631 resell to the hlghest2and bestgb dderhfor cash, the said real property and all interest of the said Grantor(s), Grantor(s)' hers and assigns therein, for the purpose of paying the indebtednes provided in said Evidence of Debt secured by the Deed of Trust, plus attorneys' fees,, the expenses of sale and Cher items allowed by law, and will issue to the purchaser a Certificate of Purchase, all as provided by law. First Publication 6/]/2024 Last Publication 7/5/2024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 03/29/2029 Brigitte C. Grimm, Public Trustee in and for the County of Weld, State of Colorado By: Brigitte Grimm, Public Trustee The name, address, business telephone number and bar regis- tration number of the attorney(s) representing the legal holder f the indebtedness is: Lynn M. Janeway #15592 Janeway Law Firm. P.C. 9540 Maroon Circle., Suite 320, Englewood, CO 80112 (855)263-9295 Attorney File # 21-025558 The Attorney above is acting as a debt collector and 6 attempt- ing t0 collect a debt. Any information provided may he used for that purpose. LEGAL NOTICE The following Ordinance passed on the second reading at a reg- ular meeting th of the EOrdinance cyCouncil held onJulyt 2, 2024. NO lorrado.gov and at the Office of are available the City Clerk, 1100 37th Street, Evans, CO 80620 or by calling (970) 475-1104. ORDINANCE N0.825-24 AN ORDINANCE AMENDING THE 2024 BUDGET; INCREASING GEN- ERAL FUND REVENUES BY $1,778,444, APPROPRIATING GENERAL FUND EXPENDITURES OF $7,461,165, APPROPRIATING STREET IMPACT FUND EXPENDITURES OF $105,101 APPROPRIATING PARK IMPACT FUND EXPENDITURES OF $1,084,765, APPROPRIAT- ING CONSERVATION TRUST FUND EXPENDITURES OF $121,000, INCREASING CIP STREETS FUND REVENUES BY $971,500, APPRO- PRIATING CIP STREETS FUND EXPENDITURES OF $1,888,973, AP- PROPRIATING CIP PARKS FUND EXPENDITURES OF $160,000, AP- PROPRIATING CIP FOOD TAX FUND EXPENDITURES OF $214,854, APPROPRIATING CIP ROAD TAX FUND EXPENDITURES OF APPROPRIATING WASTING WATER FUND EAPENSES OF E WATER FUND EXPENSES OFF$8,353,450, INCREASING STORM DRAINAGE FUND REVENUES BY $1,1]1,000, APPROPRIATING STORM DRAINAGE FUND EXPENSES OF $1,171,000. Published: Greeley Tribune July 5, 2024-2063036 District Court Weld County, Colorado 901 gel Ave, Greeley, CO 80631 In the Matter of the Estate of: Keith Edward Schmedtje Party without Attorney: Michelle6 mnder Shockley 19CoCircle Erie, CO 80516 Case Number: 2024PR150 Division: 1 NOTICE OF HEARING BY PUBLICATION PURSUANT TO To:: Mercedes Lopez and 4 Nicole Schmedtje A hearing on Application for Probate of Will for Keith Edward Sill be held at the following time and location or at a later date to which the 901 gf 1 may be continued: July 12024 T 9th Ave, Greeley, CO 80631 Date: ddre The hiring will take approximately 30 minutes Published: Greeley Tribune June 28, July 5, 12, 2024-2061359 10 I OCLASSIFIEDS G6EEtEPTR1aDH6pDM FRIoxy, July 12, 2024 Public Notice Public Notice Public Notice Public Notice Public Notice Public Notice District Court, Weld County. Colorado Court Address: 9019th Ave., Greeley, CO 80631 Mailing Address: PO Box 2038, Greeley, CO 80632 (970) 475-2400 In the Matter of the Determination of Heirs or Devisees or Both and of Interests in Property of: DELLA R. JENSON a/k/a DELLA JENSON. Deceased Attorney for Petitioner: Coon, Payton and Payne, LLC Daniel W. Jones, #24626 171161st Avenue, Suite 100 Greeley. Phone Number: (970) 339-3500 FAX Number: (970) 584-1776 E-mail: djones@cp2law.com Case Number: 2024PR30349 Division:) NOTICE OF NEARING BY PUBLICATION TO INTERESTED PERSONS AND OWNERS BY INHERITANCE PURSUANT TO §1542-1303, C.R.S. To All DuaneLenJetnson: Carol Diane Bassett ed Persons and Owners by Inheritance: a/k/a Carol Jenson Bas- JohnVincentBasseitt111;Jludyo JensonBassett; f%Wa Judy Jenson t/Wa a Judy Jankowski, and all unknown parties who may claim an in- terest in the property. A Petiti the fobdtnfiled alleging that the above Decedent ent died e d County, Colorado: g real property mineral in in a. An undivided 1/32 of the oil, gas d other minerals lying in d under and that may be produced from Parcel 1: South Half of the North Half (Sl/2N1/2) of Section 3, Township 10 North, Range Anne undivided f1/16 of he ail, gas and other minerals lyinin and under and that may be produced from Parcel 2: Lots 1,, 2, 3, tl 4 a/k/a the North Half of the North Half (N1/2N1/2) in Sec- tion 3,Township 10 North, Range 58 West of the 6th P.M.; c. An • under and [that may oftheoduced from other Parcel 3: West) Half In the Northeast Quarter (Wt2NE1/4) and II f the SouFlt7(h�leffast West the 6rh)P frj Section 26, Township 11 North, Range 58 d. An undivided 14/320 of the oil, gas and other minerals lying in tl under and that may be produced from Parcel 4: South Half (S1/2) of Section 27, Township 11 North, Range 58 West of the 6th P.M: e. An undivided 14/320 of the oll, g and oother innerel saHalf llying H and under and that may be produced (E1/2) of Section 34, Township 11 North. Range 58 West of the 6th P.M: and f nundivided14/3202e produced fromParcel 6: North other lying in dunder and that may be Half (Nl/2) of Section 35, Township 11 North, Range 58 West of the 6th P.M. The hearing on the Petition will be held at the following time and location: Dat:5eplembm 13, 2024 Time: l a.m. Division: l Address: 9019th Avenue, Greeley, CO 80631 rote: If you object to the distribution of Decedent's property pro- posed in the Petition, you must appear and object to the Petition r before the hearing date and hme specified above. • Allobjections to the Petition must be in writing and filed with the court, the filing fee must be paid on or before the hearing date and time, and the objection must be served upon the Peh- aioner. The hearing shall be limited to the Petition, the objections timely filed and served, and, if no objections are timely fled and served, the court may enter a decree without a hearing. Date: July 9, 2024 sganie:1,7,s Attauey for Petitipner Published: Greeley Tribune July 12, 19, 26, 224-2063699 PUBLIC NOTICE Colorado Sand Company II, LLC; 2001 Kirby Drive Suite 360 Hous- ton, Texas 77019, (970) 978.9858 has filed an application for a Regular (112) Construction Materials Operation Reclamation the provisions of the Colorado LaLand d Reclamaation Act Board the under Ex- traction of Construction Materials. The proposed mine is known 34the Kersey Mine and is located at or near the S1/4 of Section , TOON. R63W of the 6th Principal Meridian and all of Sections 2, 3, 10, 11, 14, and 15, T05N, R63 W of the 6th Principal Meridian in unincorporated • proposed [date ofcommencementommencelo mentis March 2025, and the proposed completion is September 2045. The proposed future se of the land is rangeland. Additional Information and tenta- tive decision date may be obtained from the Division of Recla- mation, Coloradoiand 802 3, (303)1313 866- 567, or the Weld CountRoom y Clerk andabove-named Recrreice t 1250 H St. Greeley, Coloratlo 80631. or Commends must be in writing must be received by the Divi- sion f Reclamation, Mining, tl Safety by 4:00 p.m. on August 8.22and4. Please note that under the provisions of C.R.S 34-32.5-101 et seg. Com- mentrelated to noise, truck traffic, hours of operation, visual impacts, effects on property values, and other social or economic concerns are is- sues not subject to this Office's jurisdiction. These subjects, and similar typically addressed by your local governments, rather than the Division of Reclamation, Mining, and Safety or the Mined Land Reclama- tion Board. Published:Greeley Tribune June 28, July 5, 12, 19,2024-2058219 NOTICE OF CONTRACTORS FINAL SETTLEMENT Notice is will be mane by Me Towwn at of Platteville to GLH CONSTRUCTION LLC 780 E. GARDEN DRIVE WINDSOR, CO 80550 hereafter called he contract for the c ns"CONTRACTOR", a PROJECT described account of ibed as OLIVE LANE SIDEWALK IMPROVEMENTS Any pan erson, copartnership, association or corporation who has furnishingsid : of Iabcr, materials, said tealmcthire,or on sustenance� provof i- sions, provender, rental machinery, tools or equipment and oth- so supplies used or consumed by such contractor or any of his ubcontraucttors in or about he performance of said work, may at file • al verified statemento and dofthe:amount me due such dnunpaidl on ac runt of such claim. All such claims shall be filed with the Town of Platteville, 400 Grand Avenue, Platteville, Colorado, 80651. Failure on the part of a creditor to file such a statement prior to such settlement claims. TOWN the Town o Platteville from any and all liability such laime TOWN OF PLATTEVILLE TO NADMINISTRATOR • Renken Published: Greeley Tribune June 28, July 12.2024-2061361 Greeley Mquor Lic rcg Authority PursuaPUBLIC NOTICE Greeley, reele , Qoui the lawsrip Corporation the State of Colorado and the City of new Retail Fermented ted Malt Beverage and Wine3Liquor Li fore posed to be located at 8000 W 10th Sti Greeley CO 80634 Ted= Liu Licensing Authority 024 hold a m. at public hearingon .psaidapplication on July 26,224,at2 public at which time any parties m Interest mayee heard. Theo blic can view and participate in this remote meeting via the City's YquTube page: www.youtube.com/CityofGreeley To ubmitcomhentsorquestions toberead into the record dur- ing g, please either email the City Clerk's Of- fice on or before Jule 25th, at 5:00 p.m.: 'tin la U5 tyclerk@5eleygov.com or in atsingv postal mail to be received no later than July Greeley Liquor Licensing Authority 100010th Street Greeley, CO 80631 Dated this 10th Day of July 2024. Heidi Leatherwood, City Clerk Published:Greeley Tribune July 12,2024-2063987 Greeley Mquor Licensing Authority Pursuant to the laws of the State NOTICE Colorado and the City of Greeley, Coral Bay Wine & Spirits, LLC dba Coal Bay Wine & Spi- nits applied fora read-Zr Retail -1 Store Liquor License, pro- posed to be located at 6624 W 1Dth r5t Suite 100., Greeley CO 8034. The Greeley Liquor Licensing Authority,2024. ill hold a virtual public hearinm. at which time any partion es iinnplication on interest may be heard The puat 2blic can view and participate in this remote meeting via the City's YouTube To submit comments www.youtube.com/CityofGreeleY questions el be read into the record dur- ing the remote hearing, please either email the City Clerk's Of- fice on or before July 25th, at 5:00 p.m.: cityclerk@greeleygov. JOm or in writing via US postal mail to be received no later than uly 25th, at 5:00 p.m:: Greeley Liquor Street Licensing Authority e Greeley, CO 8031 Dated this 10th Day of July 2024. Heidi Leatherwood, City Clerk Published: Greeley Tribune July 12, 2024-203969 Greeley Liquor Licensing Authority PUBMC NOTICE Pursuant to the laws of the State of Colorado and the City of GreelHotel and Restaurrantho LLC Liquor License,) proposed to lbe locatedfor a at 1130 8th Ave., Greeley CO 80631 The Greeley Liquor Licensing Authority will hold a virtual public hearing on said application on July 26, 2024, at 2 p.m. at which time any parties in interest may be heard. The public can view and participate t in tcom%Clot m le Bing via the City's VouTube To submit comments or www.youtube.corn/CityofGreeley questions to tie read into the record dur- ing the remote hearing, please either email the City Clerk's Of - fine on or before July 25th, at 5:00 p.m.: cityclerk@greeleygv tin0g via US postal mail to be received no later than Greeley Liquor Licensing Authority 100010th Street Greeley, CO 80631 Dated this 10th Day of July 2024. Heidi Leatherwood. City Clerk Published: Greeley Tribune July 12, 2024.203979 Greeley Liquor Licensing Authority PUBIJC NOTICE Pursuant to the laws of the State of Colorado and the City of Greeley, John Galt Coffee Co. dba John Galt Coffee applied for a new Tavern Liquor License, proposed to be located at 709 0631. The Greeley Liquor t Licensing Authority h St., Greeley CO 8 ty will hold a virtual public hearing on said appplication on July 26.224, de 2 p.m. at which time anypartles In interest may meeting heard. The public can view and participate in ww.ymoube.co lathe City's VouTube To submit comaments or questions to be read into the record dur- ing the remote hearing, lease either email the City Clerk's Of - flee on or before July 2th. at 5:00 : cityclerk@greeleygov. com or in writing via US postal mailto be received no later than July 25th, at 5:00 p.m.: Greeley Liquor Licensing Authority 100010th Street Greeley, CO 80631 Dated this 10th Day of July 2024. Heidi Leatherwood, City Clerk Published: Greeley Tribune July 12, 2024-203984 COMBINED NOTICE- PUBLICATION CRS 638-38403 FORECLOSURE SALE N0.24-0104 To Whom It May Concern: This Notice is given with regard to the following Public Tubed Deed of s ee caused thesNoticeAofril Election4and Demand the under - trelating to the Deed of Trust described below to be recorded in he County of Weld records. Original Grantor(s) Jeremy Michael Starter, Joined Herein Pro Forma rtzer Original Benefciary(ies)Danielle ortgeagge Electronic Registration Sys- tems, Inc. ("MERS') nominee for Nations Reliable Lending, LLC., Its Successors and Assigns Current Holder of Evidence of Debt MidFirst Bank Date of Deed of Trust May 27, 2016 County of Recording Weld Recording Date of Deed of Trust June O6, 2016 Recording Information (Reception No. and/or Book/Page No.) 420902 Original Principal Amount $211,105.00 Outstanding Principp I Balance $190,5250 Pursuant to CRS fi38-38.101(4)(1), you are hereby notified that the covenants of t e deed of trust have been violated as follows: Failure to make timely payments reed under said Deed of Trust and the Evidence of Debt secured thereby. THE LIEN FORECLOSED MAY NOT BE A FIRST LIEN. LOT 6, BLOCK 18, WILLOWBROOK SUBDIVISION ACCORDING TO INSTRUMENT RECORDED AUGUST 17, 2001 UNDER RECEPTION NO. 2875802, FORMERLY KNOWN AS SEARS FARM SUBDIVISION, COUNTY OF WELD, STATE OF COLORADO. "Pursuant to that cer- tain 109(5)Affidavit dedRe: in the Scrivener's records of Error Weld County, Colorado, Son 9/32021 at Reception No. 4752749 to correct the legal descrip- tion. Purported common address: 2712 Water Front St Evans, CO 80620. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY TXE LIEN OF THE DEED OF TRUST. NOTICE OF SALE The current holder of the Evidence of Debt secured by the Deed of Trust, tlescribetl herein, has filed Notice of Election antl De - d for sale as provitletl by law and in said Deed of Trust THEREFORE, Notice Is Hereby Given that I will at public auction, t 10:00 A.M. on Wednesday, 08/0]/2020. at 1400 N 1Rh Avenue, Greeley, CO 80631, sell to the hinhest and best bidtler for cash, the said e I pyroperty sign all finest of for a pp said Grantor(), he indGrantoebtedness provided in said ns eEvidenceeof Debt securedose of by the Deed of Trust plus attorneys' fees, the expenses of sale and [her Items allowed by law, and will issue to the purchaser a Certificate of Purchase, all as provided by law. First Publication 6/14/2024 Last Publication 7/12/2024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 04/04/2024 Brigitte C. Grimm, Public Trustee in and for the County of Weld, State of Colorado Thegna9me, address, Public telephone number and bar regis- tration number of the attorney(s) representing the legal holder f the indebtedness is: Ilene Dell'Acqua #31755 McCarthy & Holthus, LLP 7700 E. Arapahoe Road, Suite 230, Centennial, CO 80112 (877)369-6122 Attorney File # CO -24 -987570 -LL The Attorney above is acting as a debt collector and is attempt- ing to collect a debt Any information provided may be used for that purpose. COMBINED NOTICE - PUBLICATION CRS 638-38-103 FORECLOSURE SALE NO. 24-0119 To Whom It May Concern: This Notice is given with regard to the following described Deed of Trust: On May 2, 2020. the untler- relatingtotheDeedofTrustdeseribedbelowlt0 erecorded'innd the County of Weld records. Original Grantor(s) GABRIEL O. LEZAMA AND JULIE A. LEZAMA Original Beneficiary(ies) MORTGAGE ELECTRONIC REGISTRA- TION SYSTEMS, INC. AS NOMINEE FOR AMERICAN HOME MORT- GAGE Trustee Holder behalf of ACEeSec cities HCorp. BHomeUEp@l yALoan Trust and for the registered holders of ACE Securities Corp. Home Equity Loan Trues Series 2006-ASAP5, Asset Backed Pass -Through Certifi- cates of Deed of Trust June 30, 2006 County of Recording Weld Recording Date of Deed of Trust July 06, 2006 Recording Information (Reception No. and/or Book/Page No.) 3400843 Original Principal Amount $219,200.00 Outstanding Principal Balance $242,979.24 Pursuant to CRS 538-38-101(4)(1), you are hereby notified that the covenants of the deed of trust have been violated as follows: failure timely ust. mints as required under the Evidence oDebt and Deed ofr THE LIEN FORECLOSED MAY NOT BE A FIRST LIEN. LOT 26, BLOCK 3; CARLSON FARMS, FILING NO. 2, COUNTY OF WELD, STATE OF COLORADO. Purported common address: 373 CLAYCOMB LANE, JOHNS - TOWN, CO 80534. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE OF SALE The current holder of the Evidence of Debt secured by the Deed of Trust, described herein, has filed Notice of Election and De- mand for sale as provided by law and in said Deed of Trust THEREFORE, Notice Is Hereby Given that I will at public auction, at 10:00 A.M. on Wednesday, 09/04/2024, at 1400 N 17th Avenue, Greeley, CO 8031, sell to the hihest and best bidder for cash, the said real property and all interest of the said Grantor(), the ndebtedness provided in said Evidenceoof Debt securredi b9 the therDeed items allowed by law, alus nd twill issue tthe oether of hesera Certificate of Purchase, all as provided by law. Purc First Publication 7/122024 ast Publication 8/9/2024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 05/02/2024 Brigitte Coloradomm, Public Trustee in and for the County of Weld, State of Thelname, address, businessuty for c Trustee telephone number and bar regis- tration number of the attorney(s) representing the legal holder of the indebtedness Is: N. April W inecki #34861 Jneway Law Firm, P.C. 9540 Maroon Circle., Suite 320, Englewood, CO 80112 (855)263-9295 Attorney File # 19.023061The above is actingattempt- ing a to collect a debt Any information providedcollector be ed for that tpurpose. COMBINED NOTICE - PUBLICATION CRS §38-38-103 FORECLOSURE SALE N0.24-0125 To Whom It May Concern' This Notice is given with regard to the following described Deed of Trust: On May 2. 2024, the under - g d Public Trustee causd the Notice of Election and Demand relating to the Deetl of Trust tlescribetl below to be recortletl In the County of Weld records. Original Grantor.) Jacob Wayne Roberson AND Savannha Rita May Original e Beneficiary(ies) MORTGAGE ELECTRONIC REGISTRA- TION SYSTEMS, INC. AS NOMINEE FOR FAIRWAY INDEPENDENT MORTGAGE CORPORATION, ITS SUCCESSORS AND ASSIGNS Current Holder of Evidence of Debt COLORADO HOUSING AND FINANCE AUTHORITY Date of Deed of Trust December 21, 2018 County of Recording WeldRecordin Recording IDate Onformation (Receptionf Deed of Trust No. December ntl/l orBook/Page No.) 4455805 Original Principal Amount $242526.00 Outstanding Princi I Balance $237,006.03 Pursuant to CRS 38.38-101(4)(i), you are hereby notified that the to pay oft e deed l andfinterest when duviolated to ether (with all [her payments for in the evidence of debt secured by the deed of trust and other violations thereof. THE LIEN FORECLOSED MAY NOT BE A FIRST LIEN. LOT 46, BLOCK 7, MINOR CORRECTIONS TO RESUBDIVISION OF WEST HILL -N -PARK 3RD FILING, COUNTY OF WELD, STATE OF COLORADO. PARCEL ID NUMBER: 0%926325046 Purported common address: 4745 Everglade Ct Greeley, CO 80634. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE OF SALE The current of Tr st described herein, n has filed Notice of Electionce of Debt ancured by and De- mand for sale as provided by law and in said Deed of Trust. THEREFORE, Notice Is Hereby Given that I will at public auction, at 10:00 A.M. on Wednesday, D9/04/2024, at 1400 N 17th Avenue, Grethe said CO l pro, sell to the and all interesthest nofthe bidder Grantor(s), Grantor -0Z heirrsga dd .signs therein, for the purpose of paying the indebtedness provided in said Evidence of Debt secured by otherreitems Trust, by law, and will issue expenses purehaserna Certificate of Purchase, all as provided by law. Last Publication 829/20244 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 05/02/2024 Brigitte C. Grimm- Public Trustee in and for the County of Weld, State of Colorado By: Julie Cole, Deputy for Public Trustee The name, address, business telephone number and bar regis- tration number of the attorney(s) representing the legal holder f the indebtedness is: Alison L Berry #34531 laneway Law Firm, P.C. 9540 Maroon Circle., Sulte 320, Englewood, CO 80112 (855) 23-9295 Attorney File # 22-028896The acting attempt- ing t �Ilect a debt. Anabove is :information providedmaybe used for that purpose. COMBINED NOTICE - PUBLICATION CRS §38-38-103 FORECLOSURE SALE NO.24-0115 To Whom It May following desnIi s given with regard to the describedDeedof TrTrust:OnApril 25, 2024, the under- signed Public Trustee caused the Notice of Election and Demand elating to the Deed of Trust described below to be recorded in the County of Weld records. Original Grantor(s) Pamela Kaye Yunker Original Be liEdI arryy(ie) Mortgage Electronic Registration Sys- tems, Inc access r a si a for American Financing Corpo- tiren Its Successors and Assigns Current Holder of Evidence of Debt PNC Bank, National Associa- tion Date of Deed of Trust March 26, 2022 Countying Recording Weld Recording Date of Deed of Trust April 04,2022 Recording Information (Reception No. and/or Book/Page No.) 4815619 Original Principal Amount $177,000.00 Outstanding Principal Balance $172,400.33 00.33 Pursuant to CRS (gee die 12(4)(1), you are hereby notified asol that the it� covenants a tidn'g"otl ottLirr t beegdnviolated under Said Deed Of Trustand theE LOSE eof Debt securedthereby. THE LIEN FORECLOSED MAY NOT BE A FIRST LIEN. THE LAND REFERRED TO HEREIN IS SITUATE IN WELD COUNTY, STATE OF COLORADO AND IS DESCRIBED AS FOLLOWS: THE 57 NORTH FEET OF THE WEST 50 FEET OF LOT 2, BLOCK 5; CITY OF GREELEV, COUNTY OF WELD, STATE OF COLORADO. ;Tared common address: 1330 8th Street, Greeley, CO 8031- 3218. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE OF SALE The current holtler of the Evidence of Debt securetl by the Deetl of Td fortlsale iasetl herein, has filetl Notice of Election and teed Herd by law and in said Deed of Trust. THEREFORE, Notice Is Hereby Given that 1 will at public auction, r 1eley A.M. on Wednesday, 08/928/2024, at 1400 N bidder Avenue, the¢said rectal pro, sell a dhalll interest of the said Grantor(s), Grantor(s)' heirs assigns therein, for the purpose of paying the indebtedness provided in said Evidence of Debt secured by the Deed of Trust, plus attorneys' fees, the expenses of sale and other items allowed Certificate of Purchase,all as p ovto the purchaser a provided by law. First Publication 7/52024 Last 2024 Name oflPublicationication / Greeley Tribune IF THE SALE DATE E CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENURED TO CURE MAY ALSO BE EXTENDED; C Grimm, Brigitte Public Trustee in and for the County of Weld, State of Colorado The nag, l iadesstybusine i telephone number and bar regis- tration number of the attorney(s) representing the legal holder f the indebtedness is: Ilene Dell'Acaua #31755 McCarthy & H (thus, LLP 7700 E. Arapahoe Road, Suite 230, Centennial, CO 80112 (877)369-6122 Attorney File #CO.24-988705is 99 -LL pt ing t attorney a ddebt. My information pra debt roovidededrmay be used for that purpose. COMBINED NOTICE - PUBLICATION CRS §38-38-103 FORECLOSURE SALE NO.24-0110 To Whom It May Concern: This Notice is given with regard to the following described Deed of Trust: On April 15, 2024, the under- signed Public Trustee caused the Notice of Election and Demand elating to the Deed of Trust described below to be recorded in the County of Weld records. OriOriginal inal G inal BenefieiaFredrick ryhs)MORTGAGE ELECTRONIC REGISTRA- TION SYSTEMS, INC. AS NOMINEE FOR GATEWAY MORTGAGE, A DIVISION OF GATEWAY FIRST BANK. ITS SUCCESSORS AND AS- SIGNS Current Holder of Evidence of Debt COLORADO HOUSING AND FINANCE AUTHORITY Date of Deed of Trust October 26,222 County. of Recording Weld Recording Date of Deed of Trust October 31, 2022 Recording Information (Reception No. and/or Book/Page No.) 4864312 Original Principal Amount $482,983.00 Outstanding Princi Balance $478.055.03 Pursuant to CRS gp38-38-101(4)(1, you are hereby notified that thi covenants of the deed of trust have been violated as follows' other nenure to payts principal for in the eest vidence ehen uoftdebt retuned bth y the deed oftust antl other violations thereof. y THE MEN FORECLOSED MAY NOT BE A FIRST LIEN. LOT 1, BLOCK 6, WEST T BONE RANCH SUBDIVISION FIRST FIL- ING, BEING WITHIN THE CITY OF GREELEV, COUNTY OF WELD, STATE OF COLORADO. PARCEL ID NUMBER: 095922023001 Purported common address: 5701 W 31st St Greeley, CO 8034- %17. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE MEN OF THE DEED OF TRUST. NOTICE OF SALE The current holder of the Evidence of Debt secured by the Deed of Trust, described herein, has filed Notice of Election and De - d for sale as provided by law and in said Deed of Trust. THEREFORE, Notice Is Hereby Given that I will at public auction, at 10:00 A.M. on Wednesday, 08/14/2024, at 1400 N 17th Avenue, Greeley CO 8031, sell to the highest and best bidder for cash, the said heiproperty s and assign athri,interest othe purpose saitl Gnomon$), the indebtedness providetl in saitl Evidence obt ecured: by the Deed of Trust, plus attorneys' fees, the expenses of sale and other items allowed by law, and will issue to the purchaser a Certificate of Purchase, all as provided by law. First Publication 6/21/2024 Last Publication 7/192024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 04/15/2024 Brigitte C. Grimm. Public Trustee in and for the County of Weld, FRIDAY, JULY 10, 2024 REELF°.RIBGRE nM I CLASSIFIEDS®I 73 Public Notice Public Notice Public Notice Public Notice Public Notice Public Notice COMBNED NOTICE - PUBLCATION CRS §38-3&103 FORECLOSURE SALE N0.24-0137 To Whom It May Concern: This Notice is given with regard to the following described Deed of Trust: On May 13, 2024, the under- signed Public Trustee caused the Notice ofElectionand Demand elating to the Deed of Trust described below to be recorded in the County of Weld records. Original Grantor(s) Justin Thomas Defazio and Cale Gerard Spensieri Original Beneficlary(is) Mortgage Electronic Registration Sys- tems, oand as Inc., as Beneficiary, as nominee for IoanDepot.com, LLC, its gns Current Holder of Evidence of Debt IanOepot.com, LLC Date of Deed of Trust Aug st 29, 2022 County of Recording Weld Recording Date of Deetl of Trust Augur 30, 2022 Recording Information (Reception No. a Wor Book/Page No.) Original Principal Appmount $453,024.00 OutstanPursuant to CRScifi38-38-101(4)(), you Ca a hereby the covenants of tfhre deed of trust have been violaed asfifollows: Failure and maketimely Tut to payments as required under the Evidence of Debt THE UEN FORECLOSED MAY NOT BE A FIRST UEN. LOT 346, PROMONTORY IMAGINE SCHOOL THIRD FILING, CITY OF GREELEY, COUNTY OF WELD, STATE OF COLORADO. Purported common address: 1601 106th Ave, Greeley, CO 80634. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED IIIS LIEN OF THE DEED OF TRUST. NOTICE ceSALE The current holder of the Evidence of Debt secured by the Deed of Trust, described herein, has filed Notice of Election andDe- mandTrust. for sale as provided Here by law and in said Deed of Trust. THEREFORE, Notice Is Wednesday, 09/11/2024, Given that I will at public auction, Greeley, CO 80631, sell to the h glhest2andt1400 N best bidderhfor cash, crantorts)'he property oand assigns sall thriinterest of purpose said Grantor(s), aging the indebtedness provided In said Evidence Debt seurediby the Deed of Trust, plus attorneys' fees, the expenses of sale and other items allowed by law, and will issue Certificate of Pu chse, all as provided t0 the purchaser a by law. First Publication 7/19/2024 LaSt Publication 8/16/2024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- UNE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 05/13/2024 Brigitte State C. Coloradoi, Public Trustee in and for the County of Weld, atenaie dds, business lresDeputy for i c Trustee The name, telephone number and bar regis- tration number of the attorney() representing the legal holder f the indebtedness is: Amanda Ferguson #44893 HALLIDAY, WATKINS & MANN, P.C. 355 Union Blvd, Suite 250, Lakewood, CO 80228 (303)274-0155 Attorney File # CO23157The acting attempt- ing t collect as debt is Information provided may be used for that purpose. COMBINED NOTICE - PUBLCATION 114 TO Whom Tt May Concern: 103 FORECLOSURE is given to the following des Trustee caused the Not ce cribed Deed of TrUSt: On dF Electril 24, ion antl Demand the under - relating to the Deed of Trust described below to be recorded in the County of Weld records. Original Grantor() Michael H Mauser and Amy L Mauser Original Beneficiary(ies) New Century Mortgage Corporation Current Holder of Evidence of Debt Wst Coast Servicing, Inc. Date of Deed of Trust December 21, 2004 County of Recording Weld RecordinRecording DInformation (Reate of Deed of ception USt January eption No and/or Book/Page No.) 3248824 Original Principal Amount $65,000.00 OutstanPursuant to CRS §38 - Principal 38-101(4ance )(i), you are hereby notified that the covenants of the detl of trust have been violated as follows: Failure to pay principal and interest when due together with all other payments provided for in the evidence of debt secured by the tleetl of trust and other violations thereof. THE UEN FORECLOSED MAY 7 BE A FIRST LIEN. Lot 18, Block 1, Grandview, Town of Erie, County of Weld, State of Colorado Purported common address: 700 McAfee Court, Erie, CO 80516. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE OF SALE The current holder of the Evidence of Debt secured by the Deed of Trust, described herein, has filed Notice of Election and De- mand for sale as provided by law and in said Deed of Trust THEREFORE, Notice Is Hereby Given that I will at public auction, t 10:00 A.M. On Wednesday, 08/21/2024, at 1400 N 17th Avenue, Grethe said re080031 sell todhallh interest estand of the saitl Grantor()der for , Grantor(s)' heirs assigns therein, for the purpose of paying the indebtedness providein said Evidence of Debt secured by the Deed of Trust, plus attorneys' fees, the expenses of sale and CCher items allowed by law, and will issue to the purchaser a ertificate of Purchase, all as provided by law. First Publication 6/28/2024 Lst Publication 7/26/2024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- UNE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 04/24/2024 Brigitte C. Grimm, Public Trustee in and for the County of Weld, State of Colorado tee Thelnlame, address, utyfor Public telephone number and bar regis- tration number of the attomey(s) representing the legal holder f the indebtednes is: Britney D. Beall -Eder #34935 FTascona Joiner Goodman and Greenstein PC 4750 Table Mesa Drive, Boulder, CO 80305.550 (303)494-3000 Attorney File # FJGG 7174-1340 The Attorney above is acting m a debt collector and is attempt- ing tPolect a debt Any information provided may be used r that u COMBINED NOTICE - PUBLICATION CRS §38-38.103 FORECLOSURE SALE X0.24-0132 To Whom It May Concern: This Notice is given with regard to the following described Deed of Trust: On May 10, 2024, the under - d Public Trustee caused the Notice of Election and Demand renting to the Deed of Tus described below to be recordetl In the County ofWeld records. Original Grantor(s) JUAN UAN RUPERTO DAVALOS Hts,LLC EZ Original Holder fEviden Myles Files Investments, LLC Current Deed of Evidence 0f .Debt Myles Files Investments, LLC Cate of Deed of Trust April 20. 2023 County of Recording Weld Recording Dateof Deetl of Trust May 01, 2023anc Recording Information (Reception No. and/or Book/Page No.) 489552 Original Principal Amount $325,000.00 Outstanding Principal Balance $ $321,121,1 73.15 Pursuant to CRS edge §38-38-101(4)(1), you are hereby notified that the covenants of the tleetl oft ter have been a violated er allows: Failure to payments roi ided for in the evidence uof debt secureed b I the tleetl oftust antl other violations thereof. y THE UEN FORECLOSED MAY NOT BE A FIRST LIEN. LOT 37, BLOCK 11, GLENS OF DACONO, UNIT NO. 3, COUNTY OF WELD, STATE OF COLORADO Purported common address: 1209 MACCORMACK COURT, Dacono, CO 80514. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN IF THE DEED OF TRUST. NOTICE ce of D The current holder herein,f the Evidence of Debt secured by the Deed of Td fortlsaleazedprovidehas by law andinsaid eDeednof and THEREFORE, Notice Is Hereby Given that I will at public auction, Gt 10:00 A.M. on Wednesday, 09/11/2024, at 1400 N 17th Avenue, reeley CO 8031, sell to the highest and best bidder for cash, the said real property and all interest of the said Grantor(s), Grantor(s)' heirs and assigns therein, for the purpose of paying the indebtedness provided in said Evidence of Debt secured by the Deed of Trust, plus attorneys' fees, the expenses of sale and other items allowed by law, and will Certificate of Purchase, all as provided by llawto the purchaser a First Publication 7/19/2024 Last Publication 8/16/2024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 05/10/2024 Brigitte C. Grimm, Public Trustee in and for the County of Weld, Sate of Colorado By: Julie Cole, Deputy for Public Trustee The name, address, business telephone number and bar regis- tration number of the attorney() representing the legal holder f the indebtedness is: N. April Winecki #34861 Janeway Law Firm. P.C. 9540 Maroon Circle., Suite 320, Englewood, CO 80112 (855)263-9295 Attorney File # 24-031975 The Attorney above is acting as a debt collector and is attempt - to collect a debt. Any information provided may be used for that purpose. COMBINED NOTICE- PUBLICATION CRS §38-38-103 FORECLOSURE SALE NO. 24-0136 To Whom It May Concern: This Notice is given with regard to the following descnbed Deed of Trust: On May 13, 224, the under- signed Public relating to the Deetl of Trust tlescribetl below to obe recorded in the County of Weld records. Original Grantor(s) Jeffrey Scott Van Beber and Tonya Lynn Van Beber Original !Faltiary(ies^ Mortea a Elntr nee RBgi5tati0n Sys- tems, Inc. d M signs s omine for Ladera Lentling, Inc., Its Suc- cessors d Assigns Current Holder qt. Evidence of Debt NewRez LLC d/b/a Shellpoint Mortgage Servicing Date of Deed of Trust July 26, 2019 County of Recording Weld Recording Date of Deed of Trust August 01, 2019 Recording Information (Reception No, and/or Book/Page No.) 451002 Original Principal Amount rice $ 11,1 Pursuant to CRS §38 -al 38-101(4$01 you are hereby the covenants of the deed of trust have been violated asfifollows: Failure timely payments Derequired securetl thereby. tler saitl Deed of Trust and the Evidence THE LIEN FORECLOSED MAY NOT BE A FIRST LIEN. LOT A, RECORDED EXEMPTION NO. 0707-30.4 RECX32-0091, BE- ING A PART OF THE SOUTHEAST 1/4 OF SECTION 30, TOWNSHIP 7 NORTH RANGE 66 WEST OF THE 6TH P.M., COUNTY OF WELD, STATE OF COLORADO. Purported common address: 12607 County Road 76, Eaton, Co 80615. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE Evidence BALE The current holder hf the , has it of Debtotic secured by the Deed of Trust, described herein, has filed Notice of Election and De- mand for sale as provided by law and in said Deed of Trust THEREFORE, Notice Is Hereby Given that I will at0 public 7th avenue, t 1eley A.M. on Wednesday, hiohes024. at 1400 N deth Avenue, Greeley, le said re 8031, sell to the iinterestnof the saidG antocr( ), Grantor()' heirs and property therein, for the purpose of paying the Deed of Tirest, plus att[torneys'dfees, the expenses of sale and Certotheificate oms f Plowed u chse all slaw, provided d will issue to the purchaser a Fist Publication 7/19/2024 Last Publication 8/16/2024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 05/13/2024 Brigitte Styyacit of Coloradoimm, Public Trustee in and for the County of Weld, ie By: naddress, business lname, esDeputy for i c Trustee The telephone number and bar regis- tration t hin number of of the attorney(s) representing the legal holder Ilene Dell'Acqua #31755 McCarthy & H (thus, LLP 7700 E Arapahoe Road, Suite 230, Centennial, CO 80112 (877) 369-6122 Attorney File # CO -24 -9O722 -LL The Attorney above is acting as a debt collector and is attempt- ing to collect a debt. Any information provided may be used for Mat purpose. COMBINED NOTICE - PUBLICATION CRS M8-38-103 FORECLOSURE SALE NO. 24-01en with 08 following deWhom It scribedncern: This NOtiCe iS Deed of Trust: On Aprill 15.2 24, the underto - signed Public Trustee caused the Notice of Election and Demand trelating to the Deed of Trust described below to be recorded in he County of Weld records. Original Grantor(s) Reynaldo Rosales Original Beneficiaryoi )TBK Bank, S50 Current Holder Evidence of 22 t2019 Bark, SSB Date of Deeof Trust February Weld RecordingCounty of Date ofD d of Trust February 27.2019 Recording Information (Reception No. and/or Book/Page No.) 4469874 Original Principe A laSn1eMee, 00 Outstanding Princo CRS ( 138-101'$99,702.22 the covenPUrSUant ants of the deed off trust have been violaou are ted asfifollowed s Failure to pay monthly installments due under the terms of the Debt and failure to comply with other obligations secured by the Trust Deed THE LIEN FORECLOSED MAY NOT BE A FIRST LIEN. LOTS 25-27, BLOCK 3, ELLIS ADDITION, TOWN OF LASALLE, COUNTY OF WELD, STATE OF COLORADO. Purported common address: 221 Locust St, La Salle, 0080645. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE ce BALE The current holder herein, the Evidence of Oebt secured io the Cee- mand fTruortlsaleri etlprovideby lah. w nd in said f Election THEREFORE, Notice Is Hereby Given that I will at public auction, t 10:00 A.M. on Wednesday, 08/14/2024, at 1400 N 17th Avenue, heesaid re l prop sell to the ii interest of the said Granctor(s), property an pose o paying the indebtedness real and assigns therein, for the p f the indebtedness provided in said Evidence ofp Debt secured by the r ice of Trust, plus law, and fees, the expenses of sale and they items allowed e, law, antl provided issue to the purchaser a Certificate of Purchase, all as providetl by law. Fist Publication 6/21/2024 Last Publicatio7/19/2024 n Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY -0150 BE EXTENDED; DATE 04/15/2024 Brigitte C. GriMM, Public Trustee in and for the County of Weld, State of Colorado Tile name, address, Public telephone number and bar regis- tration number of the attorney(s) representing the legal holder of the indebtedness is: OTTESON SHAPIRO LLP 7979 E Tufts Avenue, Site 1600, Denver, CO 80237 (720)488-0220 Attorney File # 1025.095 The Attorney above is acting as a debt collector d Is attempt- ing t collect a debt Any information and provided may be used for that purpose. NMice Pursuant to the zoning laws of the State of Colorado and the Weld County Code, a public hearing will be held before the Weld County Planning Commission d the Board f County Commissioners in the Hearing Room, Weld County Administra- tion Building. 1150 0 Street, Greeley, Colorado 80631, at the times specified below. The complete case file may be examined by callingtheDe- partment of Planning Services at (970) 400-6100 to make ar- rangements Board of County Commissioners, Countyt the office f Administra- tionrk Building, 1150 0 Street, Greeley, Colorado 80631. Email mes- sages sent to an individual Commissioner may not be included in the case file. To ensure inclusion of your Email correspond- ence into the case file prior to the Planning Commission hearing, se call the Department of Planning Services a obtain the appropriate contact information. For inclusion f any co sponge prior t. the Board of Commissioners hearing, email egeslck@w court rep. If a court reporter is fanning for either hearing, please the ad- vise the Department of Planning Services or the Clerk to the ard's Office, in writing, at lest five days prior to the hearing The cost of engaging a court reporter shall be borne by the re- - [e5 icTifp5peciel aecommOdations ate a eriwns with Disab% to participate in this hearing please contact cthe i Department of Planning Services at (970) 400-6100, or the Clerk to the Board's Office at (970) 400-4225, prior to the day of the hearing. All cses schedCommissioners oners led re the are subject Ito continuance, due toor clack of of aunty r otherwise. Contact the Department of PlanninServices quo- rum the lerk to the Board's Office at the number above, for hearing continuance information. The application may be updat- ed bllcain input, referraat l request of the applicant mendain tions.. our- in pp responses, or staff Board of Couinty Commisscioners reseve the ligCommission t to mend the findings, conditions of approval, and/or development standards in the proposed resolution. Docket Number: 2024-35 Planning Commissioners Date: August 6, 2024 Time: 1:30 p.m. Board of Commissioners Date: August 21, 2024 Time: 10:00 a.m. Case Number. 1MJUSR24-12.0061 Applicant. Colorado Property Holding Company, LLC Plane Dianae Specific Request: to Use by Special Review lP rnmittNol. USR12- 06an and 1 foor r an ex- ansion of an Oil and Gas Support and Service Facility (parking, staging and maintenance of oil and g tucks and storage of portabe toilets) in the A (Agriculture) Zone District Legal Devotion: Lot A Recorded Exemption RE -150; being part West of the 6th P.M., WelSW1/4 of d County, Colorado. 4 North, Range 64 Location: North of and adjacent to County Road 42; east of ard adjacent to County Road 49. (See Legal Description for precise Size: 93 acrs, more or less Dated: July 17, 2024 Published: July 19, 2024, in the Greeley Tribune - 2065265 COMBINED NOTICE - PUBLCATION CRS 38-38-103 FORECLOSURE SALE N0.24-0131 To Whom It May Concern' This Notice is given with regard to the following described Deed of Trust On May 10, 2024, the under- relatingto the Deetlof TrusttlescribetlbeiUl be ecortledni rid the County of Weld records. Original Grantors) Dina M Gilbert AND Joseph Gilbert Original Beneficiary(ies) MORTGAGE ELECTRONIC REGISTRA- TIONSYSTEMS, INC. AS NOMINEE FOR FAIRWAY INDEPENDENT MORTGAGE CORPORATION, ITS SUCCESSORS AND ASSIGNS Current Holder of Evidence of Debt FLAGSTAR BANK, N.A. Date of Deed of Trust June 25, 2018 County of Recording Weld Recording Date of Deed of Trust June 29, 2018 Recording Information (Reception No. and/or Book/Page No.) 4411587 Original OutstandingPrrinlPrincipal Balance $ Amount 0 172, Outstanding 781.29 Pursuant to CRS g38-38-101(4)(1), you are hereby notified that the covenants of the deed of trust have been violated as follows: Failure to pay principal and interest when due together with all other payments provided for oaof lof debt secured by the deedf trust violations thereof. THE UEN FORECLOSED MAY NOT BE A FIRST UEN. LOT T, BLOCK 7, SOUTHMOOR VILLAGE SECOND FILING, CRY OF GREELEY, COUNTY OF WELD, STATE OF COLORADO. PARCEL ID NUMBER: 096/19202008 Purported common address: 2159 31st Street, Greeley, CO 80631. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE OF SALE The current holder of the Evidence of Debt secured by the Deed of Td ordsaleisedprovided has by lalwdand iin said Deed, of d De - Trust. THEREFORE, NOtice Is Hereby Given that I will at public auction, at 10:00 A.M. on Wednesday, 09/911/2024, at 140 N 17th Avenue, theesaid CO l prop sell todthe allh Interest of and the said Grader ntor(s), Grantor()' heirsoand assigns ns therein, for the purpose of paying the indebtedness provided in said Evidence of Debt secured by the Deed of Trust, plus attorneys' fees, the expenses of sale and other items allowed by law, w, prwill ovided ti Firstrovissue to the purchaser a Certificate Publication 7/19/2024 Last Publication 8/16/2024 Name of Publication Greeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 05/10/224 tTC. Coloradoi. Public Trustee in and for the County of Weld, Sate of By: Julie Cole, Deputy for Public Trustee The name, address, business telephone number and bar regis- tration number of the attorney() representing the legal holder f the indebtedness is: David R. Doughty #40042 Janeway Law Firm, P.C. 9540 Maroon Circle., Suite 320, Englewood, CO 80112 (855)263-9295 Attorney File # 24-032066The acting attempt- ing t Attorney a debtabove . Aninformation provided may be used for that purpose. COMBINED NOTICE - PUBLICATION CRS 3&38-103 FORECLOSURE SALE N0.24-0135 To Whom It May Concern' This Notice is given with regard to the following described Deed of Trust: On May 10, 2024, the under - MI; gPto the Deetl of Trust described below Cootie recordetl In the County of Weld records. Original Grantor(s) Misty Vander, Ricky Schoettner and Michelle Charlotte LaVergne ermtIncBeas Beneficial) Mortgage Electronic Registration Sys- LLC, its successors and aassignsominee for Celebrity Home Loans, Current Holder of Evidence of Debt Panorama Mortgage GrOUP, LLC Date of Deed of Trust January 25.2023 County of Recording Weld Recording Date of Deed of Trust January 25, 2023 Recording Information (Reception No.and/or Book/Page No.) 4878666 Original Principal Amount $302,421.00 Outstanding Princi I Balance $301,708.98 Pursuant to CRS 38-38-301(4)(i). you are hereby notified that the covenants of a deed of trust have been violated as follows: Faure to keg timely payments as required under the Evidence f Debt and THE LIEN FORECLOSED MAY NOT BE A FIRST LIEN. LOT 2A, BLOCK 1, RIVERSIDE MEADOWS SUBDIVISION SECOND FILING, COUNTY OF WELD, STATE OF COLORADO. Purported Common address: 3705 Salida Court, Evans, CO 8020. THE PROPERTY DESCRIBED HEREIN IS ALL OF THE PROPERTY CURRENTLY ENCUMBERED BY THE LIEN OF THE DEED OF TRUST. NOTICE OF SALE The current holder of the Evidence of Debt secured by the Deed of Trust, described herein, has filed Notice of Election and De- mand for sale as provided by law and in said Deed of Trust. THEREFORE, Notice Is Hereby Given that I will at public auction, creeleyy0, CO 80631'sell to the hlghest2and bestOb dderhfor cash; Grantothe r(s)' heirs heal irs0andassi d all interest of p said Grantor(s), purpose o re y the indebtedness provided in said Evidence of Debt secured by the Deed of Trust, plus attorneys' fees, the expenses of sale and then items allowed by law, and will issue to the purchaser a Certificate of Purchase, all as provided by law. First Publication 7/19/2024 mme of ication 6G Publication 2024 NaoGreeley Tribune IF THE SALE DATE IS CONTINUED TO A LATER DATE, THE DEAD- LINE TO FILE A NOTICE OF INTENT TO CURE BY THOSE PARTIES ENTITLED TO CURE MAY ALSO BE EXTENDED; DATE: 05/10/2Brigitte24 of Coloradoim, Public Trustee in and for the County of Weld, State By: Julie Cole, Deputy for Public Trustee The name, address, business telephone number and bar regis- tration r hnumber of Indebtedness ths attorney() representing the legal holder Amanda Ferguson #44893 HALLIDAY, WATKINS & MANN, P.C. 355 Union Blvd, suite 250, Lakewood, CO 80228 (303)274-0155 Attorney e Attorney above Cis5 actingg as a debt collector and is attempt- ingto collect a debt. Any information provided may be used for that PUBLIC NOTICE Colorado Sand Com y II, LLC; 2001 Kirby Drive Suite 30 Hous- ton, Texas 77019, (970) 978-9858 has filedan application for a rmlitwith the Colorado Mined Land Regular Materials pp PerReclamation Board under the provisions of the Colorado Land Reclamation Act for the Ex - as the Kerseyon of Minection and stlocatels. d at proposed the S1/4eof known 34, TO6N, R63W of the 6th Principal Meridian and all of Sections in 2, unincorporated and CCounty, Colorado' 6th Principal Meridian The proposed date of commencement is March 2025, and the Proposed completion is September 2045. The proposed future e of the land Is rangeland. Additional information and tenta- tive decision date may be obtained from the Division of Recla- mation, Colorado80203,Safety,, ( )13866 567, oratthe WelRoom County 80631, or the above-namedClerk and Recorder's ce at 0 H SL Greeley, Colorado applicant. Comments must be in writing and must be received by the Divi- sion f Reclamation, Mining, and Safety by 4:00 p.m. on August 8, 224. provisions Plaase nts related to noise` trucktrafc, hours of peration,C1 et visual seg. nk effects on property valus, rid other social or economic concerns are is- sues not subject to this Office's jurisdiction. These subjects, and similar onesare topically addressed by your local governments, rather than the Division of Reclamation, Mining, and Safety or the Mined Land Reclama- tion Board. Published:Greeley Tribune June 28, July 5, 12, 19.2024-205219 New Vonlease to Lateran oieh Com has been filed with The Company, in accordance with Sections 7-42-134 to 7-42-117, Colorado Revised Statutes, the fol- lowing demand: DEMAND FOR ISSUANCE OF DUPLICATE We, Union Colony STATE Investors, LLC CO tlo state COUNTY � OF WELD tDwe are the owner shares f of therecord catalst ck of The Neof Share Certificate iwVon Gohr Number nLateran Ditch Company. yl. The said certificate has been lost, mislaid, or de- levieo against such stock to the present. Theid all saidcertificaateehaass not been transferred or hypothecated by us. We demand the issuance of a duplicate certificate in accordance with state stat- utes 7-42-114 through 7-42-117, Colorado Revised Statutes. Submitted by P Conlon Secretary of The New Von Gohren Lateral Ditch Company Published: Greeley Tribune July 12, 19, 26, August 2, 9, 2024- 2063787 TURN USED ITEMS INTO QUICK CASH WITH CLASSIFIEDS! BUILD YOUR BUSINESS Advertise in the SERVICE DIRECTORY CALL 970-392-4444 4 D R June 26, 2024 COLORADO Division of Reclamation, Mining and Safety Department of Natural Resources Brady Reece Colorado Sand Company II, LLC 2001 Kirby Drive, Suite 360 Houston, TX 77019 Re: Kersey Mine, File No. M-2024-026 Receipt of 112c Construction Materials Reclamation Permit Application Dear Brady Reece: Your 112c Construction Materials Reclamation Permit application for the Kersey Mine, which is located in Weld County, has been filed. All comment and review periods began on June 26, 2024. The decision date for your application is scheduled for September 24, 2024. Newspaper publication of a notice (published once a week for four consecutive weeks) regarding the filing of your application and transmittal of a copy of the notice to all owners of record of surface and mineral rights, holders of any recorded easements, and all owners of record of lands that are within 200 feet of the boundary of the affected land is required within 10 days of submittal. You must submit proof of the notice and mailings, such as Certified Mail Return Receipt Requested, to the Division prior to the decision date. The Division is reviewing your application to determine whether it is adequate to meet the requirements of the Act. We will contact you if additional information is needed. Any changes or additions to the application on file in our office must also be reflected in the public review copy which has been placed with the Weld County Clerk and Recorder. Please be reminded that all operators must contact the Colorado Department of Public Health and Environment, Water Quality Control Division regarding storm water permits. If you have any questions, please contact me by telephone at 303-866-3567 x 8126, or by email at Nikie.gagnon@state.co.us. Sincerely, c.J9cKa .easxan,- Nikie Gagnon Environmental Protection Specialist cc: Timothy McCarthy, Tamarack Consulting Dustin Krajewski, TRC M -AP -04 Physical Address: 1313 Sherman Street, ROOM 2.15, Denver, CO 80203 P 303.866.3567 .F 303.832.8106 Mailing Address: DRMS Room 215, 1001 E 62nd Ave, Denver, CO 84216 https://drrns.colorado.gov Jared S. Polk, Governor ! Clan Gibbs, Executive Director I Michael A. Cunningham, Director i DHR COLORADO Division of Reclamation, Mining and Safety Department of Natural Resources MINERALS PROGRAM INSPECTION REPORT PHONE: (303) 866-3567 The Division of Reclamation, Mining and Safety has conducted an inspection of the mining operation noted below. This report documents observations concerning compliance with the terms of the permit and applicable rules and regulations of the Mined Land Reclamation Board. MINE NAME: Kersey Mine MINE/PROSPECTING ID#: M-2024-026 MINERAL: Sand COUNTY: Weld INSPECTION TYPE: Preoperation Inspection WEATHER: Clear INSP. DATE: August 1, 2024 INSP. TIME: 09:30 OPERATOR: Colorado Sand Company II, LLC OPERATOR REPRESENTATIVE: Brady Reece, Dustin Krajewski TYPE OF OPERATION: 112c - Construction Regular Operation REASON FOR INSPECTION: Pre -operation Inspection BOND CALCULATION TYPE: BOND AMOUNT: NA DATE OF COMPLAINT: NA POST INSP. CONTACTS: None JOINT INSP. AGENCY: None INSPECTOR(S): Nikie Gagnon INSPECTOR'S SIGNATURE: 11442: �d a5 H'outks SIGNATURE DATE: August 23, 2024 GENERAL INSPECTION TOPICS This list identifies the environmental and permit parameters inspected and gives a categorical evaluation of each. No problems or possible violations were noted during the inspection. The mine operation was found to be in full compliance with Mineral Rules and Regulations of the Colorado Mined Land Reclamation Board for the Extraction of Construction Materials and/or for Hard Rock, Metal and Designated Mining Operations. Any person engaged in any mining operation shall notify the office of any failure or imminent failure, as soon as reasonably practicable after such person has knowledge of such condition or of any impoundment, embankment, or slope that poses a reasonable potential for danger to any persons or property or to the environment; or any environmental protection facility designed to contain or control chemicals or waste which are acid or toxic -forming, as identified in the permit. (AR) RECORDS (HB) HYDROLOGIC BALANCE N (FN) FINANCIAL WARRANTY N (RD) ROADS Y N (BG) BACKFILL & GRADING- N (EX) EXPLOSIVES N (PW) PROCESSING WASTE/TAILING--- N (SF) PROCESSING FACILITIES------- N (MP) GENL MINE PLAN COMPLIANCE- N (FW) FISH & WILDLIFE (TS) TOPSOIL N N (RV) REVEGETATION---- N (SM) SIGNS AND MARKERS Y (SP) STORM WATER MGT PLAN---- N (RS) RECL PLAN/COMP-- N (ES) OVERBURDEN/DEV. WASTE N (SC) EROSION/SEDIMENTATION--- N (ST) STIPULATIONS N (AT) ACID OR TOXIC MATERIALS N (OD) OFF -SITE DAMAGE N Y = Inspected / N = Not inspected / NA = Not applicable to this operation / PB = Problem cited / PV = Possible violation cited Page 1 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 OBSERVATIONS This pre -operation inspection was conducted in response to a new 112c Reclamation Permit Application, File No. M-2024-026. Nikie Gagnon with the Division of Reclamation, Mining and Safety (Division) conducted the inspection. Brady Reece representing the applicant, Colorado Sand Company and Dustin Krajewski with TRC Companies accompanied the Division during the inspection. Wells Ranch is located approximately 7 miles northeast of the town of Kersey. The proposed permit area encompasses 4018 acres. The commodity of interest is industrial sand for use by the oil and gas industry and the post mining land use is rangeland with continued oil and gas production. The 112c application was received by the Division on June 7, 2024. The application was deemed complete for filing purposes on June 26, 2024. The affidavit of publication was received on August 1, 2024. The required public notice ran in the Greeley Tribune on June 28, July 5, 12, and 19, 2024. The public comment period closed August 8, 2024. No public comments were received by this date. The Division received one comment from Colorado Parks and Wildlife on August 23, 2024. As required by Rule 1.6.2(1)(b) the Applicant has posted notices of the proposed operation at multiple locations around the site, including one at the intersection of County Road 68 and Private Road 64, and one at the proposed mine entrance on Road 64 within Wells Ranch. The decision date for this application is September 24, 2024. The operation proposes an open -cut industrial sand mining operation that will employ a continuously advancing pit and concurrent reclamation. The anticipated life of mine is 20 years, however the Plan of Operations includes two temporary mining deferral zones (TMDZ) which could add 12 to 13 years to mining and extend the life of mine to 33 years. The topography of the proposed mine site is relatively flat with a few gently rolling hills. Several gravel well pads and roadways were observed. The vegetation primarily annual weeds interspersed with short grasses and forbs. During this inspection, the Division observed native grasses (blue grama, needle and thread, sand bluestem), annual weeds Russian thistle and cheat grass, and a few shrub species (sagebrush and yucca). No trees were observed. The topography and vegetation of the mine site appears consistent with Map C-2 Area Affected and Localized Topography and the description provided in the application. The landowner utilizes the area for cattle grazing; however, no cattle were observed during the inspection. The Division observed prairie dog towns, coyotes, pronghorn, hawks and songbirds during this inspection. One Western burrowing owl was observed in a prairie dog town near the Year 1 mining area. The site is dry, the soil is sandy with high infiltration and a few inches of growth medium. No ponds or impounding structures were observed, and none are anticipated to remain post -closure. Across the site, fencelines, entrance gates, ranch roads, oil and gas facilities, water wells, stock tanks and troughs, were inspected to verify the accuracy and completeness of Map C-1 Relevant Features and Adjoining Surface Ownership and Map C-2. An overhead power line was observed outside the permit area in the southeast corner. Wells Ranch contains numerous oil and gas facilities as shown on Map C-1 Relevant Features and Adjoining Surface Ownership. The application states the oil and gas facilities will be surveyed and plugged and abandoned prior to mining through an area. Valves and markers for oil and gas pipelines were noted at various places across the site. These markers were consistent with Map C-1. Page 2 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Two large operating oil and gas areas were observed during the inspection. One contains four well pads and is located in the center of the permit area, the other in the northwestern corner of the permit area contains six well pads. Based on the Reclamation Map F-1 in the application, these facilities are proposed to remain post mining along with associated roads and pipelines. During the inspection, the Division observed constructed ponds where the water will be piped to the Ranch and stored for use by the mine operation. Mr. Reece stated that water for the operation will be purchased and piped to the site via a pipeline that will be installed by the landowner. The Division will review the reclamation bond estimate in the application and send a letter under separate cover. Based on the observations made during the inspection, the site conditions presented in the application were found to be accurate. All adequacy issues will be addressed during the Division's review process. This concluded the inspection. A subset of the photos taken during the inspection are included below. Page 3 of 20 Photo 3: Gated entrance to Ranch off County Rd 68. Mine site is approximate two miles south through the gate. PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 PHOTOGRAPHS 'fit- - •rte•--i -7:gietttaal Photo 1: Notice sign at entrance to Ranch on County Rd 68 Photo 2: Notice sign at entrance to the mine site. Page 4 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 4: Looking southeast across the proposed process plant area in the northeast corner of the permit area. Photo 5: Looking southwest across the site from the north end of the permit area. Page 5 of 20 Photo 7: Prairie dog town observed in the proposed Year 1 mining area. PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 6: Looking south down the ranch road on the east side of the permit area. Page 6 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 8: Oil and gas facility south of the entrance to the site. Photo 9: Oil and gas pipeline valve adjacent to the ranch road on the east side of the permit area. Page 7 of 20 Photo 11: Oil and gas well pad observed from the ranch road on the east side, near the center of the permit area. PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 10: Patches of sagebrush noted across the permit area. This photo was taken adjacent to the ranch road in the in the south-central portion of the permit area. Page 8 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 12: Oil and gas well pad observed in the center of the permit area. Photo 13: Photo 12: Water well no. 3738 and tank in the Year 1 mining area (NW1/4 of the SW % of Section 2). Well will be plugged and abandoned prior to mining. Page 9 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 =4: a LT PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 16: Water well no. 319490 and tank in the TMDZ-1 mining area (NW1/4 of the NE% of Section 14). Well will remain through the life of the mine. Photo 17: Stock pond/depression adjacent to water well no. 319490 and tank in the TMDZ- 1 mining area (NW1/4 of the NE% of Section 14). Page 11 of 20 Photo 19: View looking west from the southern end of the permit area. PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 18: Stock watering trough adjacent to water well no. 319490 and tank in the TMDZ- 1 mining area (NW1/4 of the NE% of Section 14). Page 12 of 20 Photo 20: View looking southeast from southern end of the permit area. Overhead powerlines outside the permit area. Photo 21: View looking east along the ranch road on the southern end of the permit area. PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Page 13 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 22: View of gas pipeline valves in the southwest corner of the permit area. Photo 23: Oil and gas pad on the western side of the permit area. Page 14 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 24: View looking west from the western ranch road. Gas pipeline marker observed. Photo 25: View of gas pipeline marker for line that runs adjacent to the western side of the permit area. Page 15 of 20 Photo 26: View looking north along the fence line on the western side of the permit area. Photo 27: Gas pipeline valves observed on the south western side of the permit area. PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Page 16 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 28: Oil and gas well pad on the western side of the permit area. Photo 29: View looking south at oil and gas well pads along the farm road that runs along the west side of the permit area. Page 17 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 30: Looking northeast across the western side of the permit area. Red arrow points to Wells Ranch homestead, outside the north entrance to the proposed permit area. Photo 31: Ranch entrance in the southwest corner of the permit area. Hawk observed perched on the gate. Page 18 of 20 PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Photo 33: Water storage ponds located near the entrance gate at County Road 68 and the Private Road 64. PERMIT #: M-2024-026 INSPECTOR'S INITIALS: NCG INSPECTION DATE: August 1, 2024 Inspection Contact Address Brady Reece, Dustin Krajewski Colorado Sand Company II, LLC 1526 Cole Blvd. Lakewood, CO 80401 CC: Jared Ebert, Senior EPS, DRMS Page 20 of 20 ;i TRC September 19, 2024 Ms. Nikie Gagnon Environmental Protection Specialist Colorado Division of Reclamation and Safety 1313 Sherman Street — Room 215 Denver, Colorado 80203 152.6 Cole Blvd., Suite 150 T 303.792.5555 Lakewood, CO 80401 TRCcompanies.com RE: Colorado Sand Company II, LLC Response to DRMS Adequacy Review Letters No. 1, No. 2, and No. 3 Kersey Mine — 112 Construction Materials Reclamation Permit Application File No. M-2024-026 Dear Ms. Gagnon: TRC, on behalf of Colorado Sand Company II, LLC (CSC), herewith responds to the Division of Reclamation, Mining and Safety's (Division/DRMS) August 20, 2024, Adequacy Review No. 1, August 23, 2024, Adequacy Review No. 2, and September 16, 2024, Adequacy Review No. 3 as pertaining to the pending M-2024-026 Construction Materials (112) Reclamation Permit Application. The following is a complete list of Revised Documents associated with this response package: • Attachment 1 Colorado Sand • Attachment 2 Colorado Sand • Attachment 3 Colorado Sand Company 11, LLC Response to DRMS Adequacy Review Letter No. 1 Company 11, LLC Response to DRMS Adequacy Review Letter No. 2 Company 11, LLC Response to DRMS Adequacy Review Letter No. 3 • Attachment A Exhibit D-2: Mine Plan • Attachment B Exhibit D-3: Mine Process Plant and Facilities Layout • Attachment C Weed Control and Management Plan • Attachment D Exhibit F-1: Reclamation Plan Map • Attachment E Well and Pond Locations and Pipeline Routing Options • Attachment F Letter to Jason Surface — CPW District Area Wildlife Manager • Attachment G Correspondence and Settlement Agreement between Chevron and CSC • Attachment H Exhibit C-1: Relevant Features and Adjoining Surface Ownership • Attachment I Wells Ranch LLLP Structure Agreement • Attachment J Table L-1: Reclamation Cost Estimate Ms. Nikkie Gagnon September 19, 2024 Page 2 of 15 TRC appreciates the Division's comments. Should you have any questions or require additional information please feel free to contact Brady Reece (970) 978-9858 or Dustin Krajewski (970) 214-0548. Sincerely, Dustin Krajewski Project Manager on Behalf of Colorado Sand Company II, LLC A TRC ATTACHMENT 1 Colorado Sand Company II, LLC Response Letter to DRMS Adequacy Review Letter No. 1 �i TIRC September 19, 2024 Ms. Nikie Gagnon Environmental Protection Specialist Colorado Division of Reclamation and Safety 1313 Sherman Street — Room 215 Denver, Colorado 80203 1526 Cole Blvd., Suite 150 T 303.792.5555 Lakewood, CO 80401 TRCcompanies.com RE: Colorado Sand Company II, LLC Response to DRMS Adequacy Review Letter No. 1 Kersey Mine — 112 Construction Materials Reclamation Permit Application File No. M-2024-026 Dear Ms. Gagnon: TRC, on behalf of Colorado Sand Company II, LLC (CSC), herewith responds to the Division of Reclamation, Mining and Safety's (Division/DRMS) August 20, 2024, Adequacy Review No. 1 as pertaining to the pending M-2024-026 Construction Materials (112) Reclamation Permit Application. We present our response to each adequacy comment in the provided numerical sequence in order to facilitate the Division's further review. We note that a copy of this response letter has also been hand - delivered to the office of the Weld County Clerk, as required per Rule 1.6.2(1)(c). 6.4.3 Exhibits C & D - Pre -mining & Mining Plan Map(s) of Affected Land (1) During the pre -operation inspection, the Division observed several markers for buried natural gas pipelines along the western side of the permit area. The gas pipelines and easements are depicted on Maps C-1 and D-2, however, setback distances during mining are not defined. The Division acknowledges the Oil and Gas Facility Management Plan described in Appendix D which states all oil and gas infrastructure within the mining blocks has been or is planned for formal plugging and abandonment. However, several of these gas pipelines are shown on Exhibit F - Reclamation Plan Map and therefore presumed to remain throughout mining and reclamation. Are the underground gas pipelines on or within 200 feet of the permit area boundary operational? Will any of these pipelines remain throughout mining and reclamation? Please update the Exhibit D-2 Mining Plan Map to depict setback distances around gas pipelines and well pads that will remain throughout the life of the mine. CSC Response: CSC confirms that any remaining oil & gas pipelines shall have proper setbacks from mining operations. As stated in Exhibit D: Mine Plan, all pipelines within the pit limits will be removed prior to mining operations. Formal abandonment is planned for all oil and gas pipelines and wells within pit limits as shown on the updated D-2: Mine Plan and D-3: Mine Process Plant and Facilities Layout. Additionally, a note specifying that wells within the pit limit will be plugged and abandoned properly, below grade of the pit floor, prior to excavation has been added for clarity. Any oil or gas pipelines and well pads that are to remain active within the Permit Area Boundary are located outside of pit limits, with appropriate setback distances. Exhibit D-2: Mine Plan has been updated to depict setback distances using dimensional callouts around any gas pipelines and well pads that will remain throughout the life of the mine. CSC provides Exhibit D- 2: Mine Plan as Attachment A and Exhibit D-3: Mine Process Plant and Facilities Layout as Attachment B. (2) During the August 1 pre -operation inspection, the applicant stated there will be a 50 -foot setback from the mining operation to the permit boundary around the entire site. Please show this setback on the Exhibit D-2 Mine Plan. CSC Response: CSC confirms it will implement the 50 -foot setback from the permit boundary to the mining operation. Previously there was a 50 -foot setback in place, however this was not Ms. Nikie Gagnon September 19, 2024 Page 2 of 6 clear due to thick permit area boundary lines and the scale used for the map. For added clarity, CSC provides the following revisions to Exhibit D-2: Mine Plan: • A note has been added stating "Contractor shall abide by 50'-0" minimum setback from Permit Area Boundary for all mining operations". • Dimensional callouts have been added depicting the setbacks from the centerline of the Permit Area Boundary to the nearest boundary of the Mining Sequence Zones. CSC provides an updated Exhibit D-2: Mine Plan as Attachment A. 6.4.5 Exhibit E - Reclamation Plan (3) In Exhibit E, the Applicant refers to a five-year post reclamation monitoring and maintenance plan. Please submit the monitoring and maintenance plan to the Division. In accordance with Rule 3.1.10(6), for post reclamation weed control, a plan should be developed in consultation with the county extension agency or weed control district office and include potential noxious weed species, specific control measures to be applied, a schedule for when control measures will be applied and a post -treatment monitoring plan. CSC Response: The reference to a five-year post reclamation monitoring and maintenance "plan" is an error and should instead reference a five-year post reclamation "period". CSC developed Exhibit E: Reclamation Plan in consultation with the landowner, Wells Ranch LLLP (Wells Ranch), which specifies that concurrent reclamation will be employed at each reclaimed area, including the terminal pit and site facilities at mine closure, to ensure that vegetation and stabilization objectives are achieved. Regarding the need for a weed management plan, and in accordance with Rule 3.1.10(6), CSC provides a Weed Control and Management Plan (Attachment C) for the Kersey Mine prepared according to Weld County recommendations. The Weed Control and Management Plan adheres to the noxious weed best management practices set forth by Weld County Code, Chapter 15 Article I — Noxious Weed Management Enforcement Policy in conjunction with the Colorado Noxious Weed Act and Natural Resource Conservation Service (N.R.C.S.) recommendations. The Weed Control and Management Plan includes potential noxious weed species found in the permit area, specific control measures to be applied, a schedule for application of control measures, and a post -treatment monitoring plan. 6.4.6 Exhibit F— Reclamation Plan Map (4) The Reclamation Plan Map in Exhibit F-1 depicts slope grading/reclamation up to or across existing gas pipelines in the permit area. Based on the answer to Question 1 above, please update the Reclamation Plan Map in Exhibit F to depict setback distances around gas pipelines and well pads that will remain throughout the life of the mine. CSC Response: All gas pipelines within the pit limits will be properly abandoned and removed prior to mining. All well pads within the pit limits will be removed. Any gas lines within the pit limits that will be properly plugged and abandoned have been removed from Exhibit F-1. Additionally, note #2 has been added to Exhibit F-1 to describe the plugged and abandoned oil and gas wells within the pit limits that will be lowered below the grade of the pit floor in accordance with the Energy and Carbon Management Commission (ECMC) requirements, prior to excavation. CSC has met with ECMC and Chevron to identify the appropriate processes to lower the plugged and abandoned wells within the pit limits. Any well pads and pipelines to remain active are shown on Exhibit F-1 with appropriate setbacks. CSC provides a revised Exhibit F-1: Reclamation Plan Map (Attachment D) reflective of these updates. �i TRC Ms. Nikie Gagnon September 19, 2024 Page 3 of 6 6.4.7 Exhibit G — Water Information (5) Per Rule 6.4.7(4), the Operator shall indicate the sources of water to supply the project water requirements for the mining and reclamation phases of the project. The applicant states water from the Cache la Poudre Ditch System will be diverted through a series of pipelines to a water storage pond located approximately two miles north of the site and distributed to the site as needed via a proposed pipeline. During the pre -operation inspection, the representatives showed the Division the location of the storage ponds and indicated the landowner plans to construct a water pipeline for the mining operation. Please describe the proposed pipeline in detail, including the timeline for construction, ownership and operator of the pipeline, approximate acres of disturbance, and proposed post mining reclamation. CSC Response: Details requested by the Division are provided as follows: • The proposed buried water pipeline to the plant will be constructed of 10" HDPE and will have a disturbance area of approximately 6.4 acres. • Beginning at the Wells Ranch water ponds, the water pipeline will advance south approximately 2.5 miles to the Processing Plant Area Boundary, as outlined in the Well and Pond Locations and Pipeline Routing Options (Attachment E). Multiple pipeline route options are provided and the route will be finalized during the design phase. • The pipeline will be constructed, owned, maintained, and operated by Wells Ranch. Wells Ranch plans to maintain the pipeline for future oil and gas, and/or agricultural uses post -mining and reclamation. • CSC will purchase water directly from Wells Ranch. • Design, permitting, and construction of the Pipeline will commence upon approval of the Kersey Mine, USR (PRE 23-0269) permit. • The following is an estimated design, permitting, and construction schedule for the Pipeline: o A. D — USR Permit approval o B. D+270 days — Design, permitting, and preparation of bid package o C. D+291 days — Award of contractor contract o D. D+306 days — Begin Pipeline construction o E. D+420 days — Pipeline completion and project closeout. CSC provides Well and Pond Locations and Pipeline Routing Options as Attachment E. 6.4.8 Exhibit H - Wildlife Information (6) In Exhibit H, the applicant lists one state -listed species and four species of special concern that are likely or possible to occur in the permit area. Additionally, the applicant lists two federally listed or candidate species have the potential to occur within the permit area. On Page 3 of Exhibit H, the applicant states, "CSC submitted a letter to the CPW District Area Wildlife Manager regarding species of concern in the Permit area." Please submit a copy of this letter sent to CPW along with their response to the Division. (7) CSC Response: A copy of the February 8, 2024, letter from TRC, on behalf of CSC, sent via email to Jason Surface, Area Wildlife Manager for the CPW Fort Collins Office is hereby attached (Attachment F). TRC has not received a response from CPW to this letter. Rule 3.1.8 states that "all aspects of the mining and reclamation plan shall take into account the safety and protection of wildlife on the mine site, at processing sites, and along all access roads to the mine site with special attention given to critical periods in the life cycle of those species which require special considerations." Exhibit D-2 Mine Plan depicts mining through surveyed black -tailed prairie dog towns in the first, second, and tenth years of mining. Page 3 �i TRC Ms. Nikie Gagnon September 19, 2024 Page 4 of 6 of Exhibit H states that black -tailed prairie dog colonies are habitat for the Western burrowing owl which is a State threatened species. Additionally, during the pre -operation inspection on August 1, 2024, the Division observed a Western burrowing owl in a prairie dog colony near the proposed process plant area. The Division is in the process of reviewing Exhibit H and consulting with the CPW Northeast Region office regarding any special considerations for species within the proposed mining area. The Division will follow-up with the applicant for additional information as needed. CSC Response: On August 23, 2024, CSC received Adequacy Letter #2 from Ms. Nikie Gagnon with comments on Exhibit H and recommendations from Colorado Parks and Wildlife. CSC provides our response to those CPW comment recommendations and the DRMS Adequacy Letter #2 as Attachment 2. 6.4.19 Exhibit S - Permanent Man -Made Structures (8) (9) The Applicant provided signed structure agreements with Bonanza Creek, and DCP Operating Company for oil and gas wells and pipelines located on or within 200 feet of the proposed mining area. Exhibit C-1 depicts Noble Energy and Noble Midstream as an owner of numerous oil and gas facilities within the permit area. During the pre -operation inspection, the representatives stated that Noble was purchased by Chevron Corporation and CSC is working on an agreement with them. Please update the maps in Exhibit C-1 to show Chevron as the owner of the facilities and provide a signed and notarized structure agreement from Chevron. In lieu of a structure agreement, the applicant may provide proof that Chevron has been notified of the mining application and CSG is working to obtain an agreement with them which demonstrates that the applicant will provide compensation for any damage to the structures owned by Chevron. CSC Response: The discrepancies between the entities depicted on Exhibit C-1: Relevant Features and Adjoining Surface Ownership and the notarized structure agreements provided in Exhibit S: Permanent Manmade Structures are a result of name and/or ownership changes evolving over the decades or years prior to CSC's compilation. The owners depicted on Exhibit C-1 align with Weld County Clerk and Recorder and ECMC records. Noble Energy and Noble Midstream are both entities acquired by Chevron and the associated oil and gas facilities are included in an ongoing agreement currently being negotiated with Chevron Corporation. This agreement as it stands to date and ongoing correspondence with Chevron since April 2024 are provided as Attachment G. To further address the Division's comment, a table depicting the subsidiaries of the parent company for reference has been added to the revised Exhibit C-1: Relevant Features and Adjoining Surface Ownership (Attachment H) to provide clarification on ownership. CSC will provide the fully executed agreement. On Exhibit C-1, Duke Energy, PDC Energy, Colorado River Devco LP, Associated Natural Gas, Inc., and Rocky Mountain Infrastructure are depicted as owners of oil and gas structures in the proposed permit area. Per Rule 6.4.19, please provide a notarized structure agreement to the Division for each company depicted on the map in Exhibit C-1. CSC Response: The discrepancies between the above -listed entities and the notarized structure agreements provided in Exhibit S: Permanent Manmade Structures and the absence of notarized structure agreements for the above -listed entities are a result of name and/or ownership changes evolving over the decades or years prior to CSC's compilation. In order to provide clarification in this regard, CSC provides the following Table 1: Entity Clarification: �i TRC Ms. Nikie Gagnon September 19, 2024 Page 5 of 6 Table 1: Entity Clarification Parent Company Subsidiary/Acquisition Entity DCP Operating Company, LP DCP Midstream, LP Duke Energy Field Services LP Associated Natural Gas Corporation Chevron Corporation Noble Midstream Partners LP Noble Energy, Inc. Colorado River DevCo LP United States Exploration, Inc. PDC Energy, Inc Oneok NGL Gathering LLC N/A Civitas Resources (formerly known as Bonanza Creek Energy, Inc.) Bonanza Creek Energy Operating Company, LLC Rocky Mountain Infrastructure, LLC (subsidiary to Bonanza Creek Energy Operating Company, LLC) Table 1 has also been added to Exhibit C-1: Relevant Features and Adjoining Surface Ownership (Attachment H). (10) Exhibit G lists four groundwater wells within the permit area. Per Rule 6.4.19, please submit structure agreements for the groundwater wells and associated structures, tanks and troughs, within 200 feet of the permit area. CSC Response: CSC acknowledges the groundwater wells within the Permit Area Boundary. Three of the existing water wells are owned by Wells Ranch. A copy of the structure agreement with Wells Ranch is provided as Attachment I. CSC has been in direct communication with Wells Ranch. Wells Ranch has committed to sign the structure agreement and CSC will provide a signed and notarized agreement under a separate submittal immediately upon execution. One well is a monitoring well owned by Chevron Corporation. This agreement as it stands to date with Chevron is provided as Attachment G. (11) During the pre -operation inspection, the Division observed fence lines around the property. Per Rule 6.4.19, please submit a structure agreement(s) for the fences within 200 feet of the permit area. CSC Response: CSC acknowledges the fence line around the Permit Area Boundary. These fences are owned by Wells Ranch. A copy of the structure agreement with Wells Ranch is provided as Attachment I. CSC has been in direct communication with Wells Ranch. Wells Ranch has committed to sign the structure agreement and CSC will provide a signed and notarized agreement under a separate submittal immediately upon execution. (12) Exhibit D - Mining Plan page 9 states mine traffic must pass through a guard station and private access gate at the intersection of County Road 68 and Road 64. Who owns and operates the guard station? Additionally, truck traffic will travel approximately 2 miles on a private road to the mine entrance. Per Rule 6.4.19, please submit structure agreements for the guard shack and gate, and the private road that will be utilized by the mine operation. CSC Response: The guard station, private access gate at the intersection of County Road 68 and Road 64, and private road CR 64 that will be used for access to the Mine are owned by �i TRC Ms. Nikie Gagnon September 19, 2024 Page 6 of 6 Wells Ranch. A copy of the structure agreement with Wells Ranch is provided as Attachment I. CSC has been in direct communication with Wells Ranch. Wells Ranch has committed to sign the structure agreement and CSC will provide a signed and notarized agreement under a separate submittal immediately upon execution. (13) The mine plan depicts an Excel Energy transmission line adjacent to the southeast corner of the permit area. What is the distance in feet from the permit boundary to the easement for the powerline? Per Rule 6.4.19, please submit structure agreements for the powerline if this easement is within 200 feet of the proposed permit boundary. CSC Response: CSC acknowledges the transmission line adjacent to the southeast corner of the Permit Area Boundary, specifically located in Section 13 of T5N R63W. The easement for this transmission line referenced by the Division is located 271 feet from the Permit Area Boundary. Per Rule 6.4.19, because the easement is not within 200 feet of the Permit Area Boundary, a structure agreement is not required. �i TRC ATTACHMENT 2 Colorado Sand Company II, LLC Response Letter to DRMS Adequacy Review Letter No. 2 h*i TRC September 19, 2024 Ms. Nikie Gagnon Environmental Protection Specialist Colorado Division of Reclamation and Safety 1313 Sherman Street — Room 215 Denver, Colorado 80203 1526 Cole Blvd., Suite 150 T 303.792.5555 Lakewood, CO 60401 TRCcompanies.com RE: Colorado Sand Company II, LLC Response to DRMS Adequacy Review Letter No. 2 Kersey Mine — 112 Construction Materials Reclamation Permit Application File No. M-2024-026 Dear Ms. Gagnon: TRC, on behalf of Colorado Sand Company II, LLC (CSC), herewith responds to the Division of Reclamation, Mining and Safety's (Division/DRMS) August 23, 2024, Adequacy Review No. 2 as pertaining to the pending M-2024-026 Construction Materials (112) Reclamation Permit Application. We provide our response to each CPW recommendation in the provided alphabetical sequence in order to facilitate the Division's further review. We note that a copy of this response letter has also been hand - delivered to the office of the Weld County Clerk, as required per Rule 1.6.2(1)(c). 6.4.8 Exhibit H — Wildlife Information (1) The Division received a comment from Colorado Parks and Wildlife regarding the application. The comment is attached for your review. Please acknowledge and address the comment and make changes to the application as necessary. CPW RECOMMENDATIONS: (a) Construction Timing - Since prairie dogs are present within the project boundaries, if initial construction occurs from March 15 to October 31, we recommend completing a Burrowing Owl survey per CPW recommendations. If Burrowing owl nests are present (as stated Burrowing owls were during the most recent survey), because this is a large disturbance, CPW recommends no activities occur within % mile (1320 feet, 400 meters) of the nest site during the nesting season March 15 through August 31. Although Burrowing Owls may not be actively nesting during this entire period, they may be present at burrows up to a month before egg laying and several months after young have fledged. Therefore, it is recommended that efforts to eradicate prairie dogs or destroy abandoned towns not occur between March 15 and October 31 when owls may be present. Because nesting Burrowing Owls may not be easily visible, it is recommended that targeted surveys be implemented to determine if burrows are occupied. More detailed recommendations are available in a document entitled "Recommended Survey Protocol and Actions to Protect Nesting Burrowing Owls," which is available from the CPW. CPW recommends conducting raptor surveys prior to construction. If initial construction is slated for the spring and summer, please incorporate active raptor nest buffers and avoidance periods. All migratory birds are protected under the Migratory Bird Treaty Act, and removal or disturbance of any migratory bird nest would require consultation with CPW and US Fish and Wildlife Service (USFWS) prior to disturbance. CSC Response: CSC will implement measures to reduce impacts to burrowing owls and other migratory birds. Should construction occur during the burrowing owl nesting season in Colorado (March 15 -August 31), CSC will apply CPW recommendations to conduct pre -construction nest surveys and targeted surveys to determine if burrows are occupied. CSC will avoid the eradication of prairie dogs and destruction of abandoned towns between March 15 and October 31 when owls may be present. Ms. Nikie Gagnon September 19, 2024 Page 2 of 3 Should construction occur during the general raptor nesting season in Colorado (December 1 - August 31), CSC will apply CPW recommendations to conduct pre -construction nest surveys. If active raptor nests, including burrowing owl nests, are identified during the survey, CSC will implement the recommended seasonal restrictions and buffer zones around the nest site during construction in coordination with the USFWS and CPW. (b) Fencing - CPW is concerned for the safety of Mule deer, White-tailed deer and Pronghorn Antelope. in the area for the proposed project. CPW recommends that if fencing (project perimeter or internal) is erected, either during or after the project, it should be the type that would allow the free passage of wildlife. Fencing plans should avoid the use of woven wire - type fences that will trap or prevent the movement of wildlife. CPW recommends using three or four -strand smooth -wire fencing with a bottom strand height of 17 inches above ground level and a maximum top strand height of 42 inches above ground level, along with the installation of double stays between posts. CPW's "Fencing with Wildlife in Mind" brochure. CSC Response: CSC acknowledges the importance of minimizing safety risks for big game. CSC will abide by the fencing recommendations of CPW for any new fencing on the project. (c) Noxious Weeds - Also of importance to CPW is the revegetation of disturbed soils and the control of noxious weed species through the development of a noxious weed management plan prior to initiating construction activities. The revegetation of disturbed areas and control of invasive weed species are important components of the project and it is critically important that the site be restored back to the native plant community that currently exists on site. CPW prefers that native vegetation be retained on -site during the operational lifespan of the project, both as potential habitat for wildlife and to ensure successful reclamation of the project area, as noxious weeds could spread to adjacent habitats outside the project area. CPW recommends that the applicant consult with the Weld County and Natural Resource Conservation Service (N.R.C.S) for the best noxious weed management practices. CSC Response: CSC acknowledges the importance of revegetating disturbed soils and controlling noxious weed species. To this end, CSC has updated the Reclamation Plan to include a Weed Control and Management Plan (Attachment C). The Weed Control and Management Plan adheres to the noxious weed best management practices set forth by Weld County Code, Chapter 15 Article I — Noxious Weed Management Enforcement Policy in conjunction with the Colorado Noxious Weed Act and Natural Resource Conservation Service (N.R.C.S.) recommendations. (d) Wood Perennial Plan Replacement and Native Re -seeding - Per the proposed reclamation plan, there are thus far no plans to revegetate the site with perennial plants (referred to as trees and shrubs). However, this proposed project area is historically referred to as the Greeley Dune Fields, which are home to the target commodity (sand) and associated woody perennial plant species such as sand sage, which is uniquely adapted to this habitat and soil type. Should removal of sand sage and other woody perennial plant species (yucca, Skunkbrush Sumac, Sand Cherry, etc) occur, CPW recommends said species be replaced at a 3:1 ratio. CPW also recommends that native species be re -seeded, including locally native grass species (sand bluestem, prairie sandreed, blue grama, etc.) and forbs (rocky mountain bee plant, silky prairie clover, etc), which would be found in this unique habitat type and would benefit both wildlife and future rangeland operations. CPW recommends that the applicant consult with N.R.C.S and CPW for further species identification and reclamation Ms. Nikie Gagnon September 19, 2024 Page 3 of 3 due to the unique nature of this habitat. If onsite mitigation of native woody perennial species cannot be achieved onsite, CPW would like to coordinate off -site mitigation for those losses. CSC Response: This recommendation from CPW is noted. The project occurs on private land dominated by nonnative herbaceous species and five percent shrub species. At the time of reclamation, CSC will review potential modifications to the seed mix in coordination with the landowner, CPW, and N.R.C.S, and if feasible, implement recommendations for reclamation of the project area with native species and replacement ratios. (e) Wildlife Escape Ramps - During open pit or open trench mining operations, CPW recommends backfilling escape ramps in areas where steep slopes occur. Escape ramps will allow wildlife to safely exit an open pit or trench if they become entrapped. CSC Response: CSC acknowledges the importance of allowing wildlife to safely exit an open pit or trench. The steepest slopes in active CSC pits will be a maximum of 22.5 degrees, which is well below the CPW-recommended maximum of 45 degrees for wildlife escape ramps for watering facilities and open storage tanks (CPW Biology Technical Note No. 55, Wildlife Escape Ramps for Watering Facilities & Open Storage Tanks, March 3, 2016); therefore, entrapment in the pits is not anticipated to present a hazard to wildlife in the area. ATTACHMENT 3 Colorado Sand Company II, LLC Response Letter to DRMS Adequacy Review Letter No. 3 �i TIRC September 19, 2024 Ms. Nikie Gagnon Environmental Protection Specialist Colorado Division of Reclamation and Safety 1313 Sherman Street — Room 215 Denver, Colorado 80203 1528 Cole Blvd., Suite 150 T 303.792.5555 Lakewood, CO 80401 TRCcompanies.com RE: Colorado Sand Company II, LLC Response to DRMS Adequacy Review Letter No. 3 Kersey Mine — 112 Construction Materials Reclamation Permit Application File No. M-2024-026 Dear Ms. Gagnon: TRC, on behalf of Colorado Sand Company II, LLC (CSC), herewith responds to the Division of Reclamation, Mining and Safety's (Division/DRMS) September 16, 2024, Adequacy Review No. 3 as pertaining to the pending M-2024-026 Construction Materials (112) Reclamation Permit Application. We present our response to each adequacy comment in the provided numerical sequence in order to facilitate the Division's further review. We note that a copy of this response letter has also been hand - delivered to the office of the Weld County Clerk, as required per Rule 1.6.2(1)(c). Exhibit L - Reclamation Cost Estimate (1) Table L-1 includes a cost for 15 truckloads of Miscellaneous Solid Waste Removal/Disposal. Please provide the volume of a truckload or estimate the total volume of the solid waste that will be disposed of off -site. CSC Response: The truckload volume for miscellaneous solid waste removal/disposal is 12 cubic yards per truckload. This volume has been added to the revised Table L-1: Reclamation Cost Estimate in Attachment J. (2) Table L-1 includes a cost estimate to rip/scarify 22.8 acres of the Southwest Primary Haul Roads. Please provide dimensions for these two roads. Additionally, Exhibit D-2 Map depicts a Northwest Haul Road. Please update the reclamation plan to include this road in the estimate and provide the dimensions. (3) CSC Response: The haul road dimensions have been added to Exhibit D-2. The haul roads have a combined area of 44 acres. The haul roads have been incorporated into the Reclamation Cost Estimate. CSC provides a revised Exhibit D-2: Mine Plan (Attachment A) and Table L-1: Reclamation Cost Estimate (Attachment J). The application states that at any given time, the maximum area of disturbance will include: the active face area and the recent (previous) mine out blocks, consisting of (up to) five yearly mine blocks, and the 107 -acre plant/facilities area. The first five years of the mine plan proposes to mine 585 acres. Additionally, in Exhibit D, page 14, the applicant states that no reclamation activity is planned for Years 1 or 2 and only 42 acres will be reclaimed in Year 3. A total of 140 acres of reclamation is anticipated by the end of Year 5. Therefore, please revise the cost estimate to reflect reclamation of the disturbance area during the first five years, Ms. Nikie Gagnon September 19, 2024 Page 2 of 2 including Mining Areas 0-5 depicted on Exhibit D-2 Mine Plan map, the footprint of the plant/facilities area, and the three main haul roads. CSC Response: Table L-1 has been updated to reflect the area of disturbance that would occur at the end of Year 5 of the Mine Plan. The area of disturbance includes the active face area and the previously mined out blocks plus the 107 -acre plant and facilities area. The total area of disturbance for the first five years of the mine plan plus the plant and facilities area is 585 acres. The total reclaimed land by the end of year five will be 140 acres. CSC provides a revised Table L-1: Reclamation Cost Estimate as Attachment J. ATTACHMENT A Exhibit D-2: Mine Plan Map CAPW WORKING-TRD\00753924\0-1 MINE PLAN.DWG-B/1a/24 • 0 II 0 SECEION {Nor lxnLOlx WERANCH AREA)� SECTION 35 7 WELLS RANCH PERMIT AREA BOUNDAR 0 r STATE OF COLORADO A D r • 0 I f I J ▪ -- - D LIMIT i?— III rl PERMD AREABDUNDARr- /. I PD LIMIT so —Et'-- �d I Iii z AREA 77 rt 0 PERMIT AREA BOUNDARY s STATE Or COLORADO r SECTION 21 TM ROW 7B RANCH LLC PRARIE?(SEE NOTE 2 ` q WELLS RANCH � 16 i AREA'. ACRES W Li PERMIT .110819 SEE NO STOCKPILE DISCARD E,0 ACRES YEAR 3 AREA 93 ACRES 721 NORTHWEST HAUL ROAD: 0626' X 100' 0,9V VIP 20 AR, 7571 T6N31:1 70 RANO. MC PERMIT AREA BOUNDARY • PERMIT AREA BOUNDARY _ 7‘47'±' PRCESS P'LAN'T AREA (SEE FIGURES D.2) IN OWING CELLS 70 RANCH LLC 6 SECTION 16 STATE OF COLORADO SECTION 1 T5N ROW WELLS RANCH 50 A • PERMIT AREA BOUNDARY i rt C P PERMIT AREA BOUNDARY 1� r SECTOW LLC 70 RANCH LLC rTEN'IINING, PLANT OPERATE EAAY PROCESSING, R (241 HOURSPER DAYREPAIRS M , WITHOUT RESTRICTION PICTION PER BOARD Or COUNTY RWEP COMMISSIONERS APPROVAL. THE FACILITY MAY OPERATE SEVEN (7) 2 BURROWING OWL HABITAT - NO INITIAL D,STURBANCE TO PRAIRIE DOG TOWNS 3. LIMITED BY WELLS RANCH GUARD SHACK AND SECURiPe GATES AT MINE 4 EXISTING WEL TO BE PLUGGED AND ABANDONED FOR E SEQUENCE AREA. S TS -0 TO BE USED IN RECLAMATION BY THE END OE YEAR 6 OIL AND GAS WELL SYMBOL LEGEND: fJ ABANDONED LOCATION O WELL - SHUT IN lei WELL - PLUGGED AND ABANDONED itt WELL • PRODUCING 0 WELL -TEMPORARILY ABANDONED MINING SEQUENCE: PLANT IMPORT (YEAR D) V�� YEAR 1 V/h1 YEAR 2 //////A YEAR 3 YEAR YEARS A V YEAR„ �'///////✓� YEARS Y/////// YEAR f //// J YEAR 12 YEAR 13 r/// //^d YEARN l/// //AI YEAR 15 YEAR l//// A // A YEAa1a/j��j� YEAR 19 TEMPORARY MINING DEFERRAL ZONE -TMD2-1 YEAR 10I //// A TEMPORARY MINING DEFERRA,ONE,MD2-2 rUMILA YEAR 11 �// UNDISTURBED AREA LINETYPE LEGEND: OE PROPOSED EDGE OF ROAD PROPOSED EQUIPMENT MAIO PROPOSED CONTOUR MIN° PROPOSED CONTOUR EXIST' G OVERHEAD ELECTRIC BUILD NG SECTION DIVIDE FERMI AREA BOUNDARY SECTION DUART,R5 OEMO FENCE EXISTI G PRAIRIE DOG TOWN GAS EXIST' G UNDERGROUND GAS CAS DEMO GAS. SYMBOL LEGEND: 000 GENERAL DIRECTION Of ADVANCE REINFORCED CEMENT CONCRETE - PROPOSED GATE PROPOSED GRAVEL 990 HPUL ROAD WELL • CONSTRUCT EF,A, 0 000 1920 SCALE NO SEPTEMBER 2024 EXHIBIT D-2 COLORADO SAND COMPANY II, LLC KERSEY MINE MINE PLAN �i TIC TRC ENVIRONMENTAL CORP. mHBIler, ,SUITE 15°LAKEWOOD. CO 80401 DESIGN REVISION DRAWN B, [NECKED BY 100 NUMBER. ATTACHMENT B Exhibit D-3: Mine Process Plant and Facilities Layout c\PW WORIGNG-TRD\DOMB A\OR MINE PROCESS PLANT AND FACILITIES MOUTON.-B/RO/zA � \ \ �N PERMIT AREA BOUNDARY LI - -- -- 0 - --" SALEB/LOADOUT —__ ACCESS ROAD B^ ROLLER COMPARED CONCRETE srau:s/LOaoouT Mil Map SATE OTE i '.®. 1 1 EXIT ROAD SWALE \\ - I \\\\ %IT ROAD _- ExrnoaV O HDPT 1 a^p opE ROAD SWALE / - --- SWALE FROM CULVERT • PIT UMW ME - - - .1` ,,,A,Ou ✓ Ex a� ,. �� V MIDFF NE I OFFICE I ELL USE AIR 'L AND GRAVEL 8 i`' - PROCESSSTOCKPILE(DR° ANO AIR 60M,`= DYEFBREA%RGD E. _< ORV SAND STORAGE E� FULL BUILD OUT), 60 ACRES I P A rgPAAn /� .. � v e® MAINMOBILE E nu`cMerv.sHov CREENN N • STALLATIONG � /REN�RD�GEM�TG STATION (DIESEL. t � 1 -- DEE,DLAND ;---�Tl DRYERUNHI I �i9 �•``'` * �L fpn MNI 8.11 D1.1.1 I 1;. ° ... r 0 � : GxDD6 ES FEED AND RAMPS - al a PRA G TOWN �9 SEE NOTE 2) \\` 1 N. 5uRGE SI g. re -4 LI lill 80.6.1 / ti I \\N �„ IANT PADSWALE . SWALE TO PITT \\` P — HOLDING.CELLS 1 �PITLIMF _- R R HC -2 �..,`� WATER TREATMENT Tom' /WET PLANT ENCLOSURE IP f '')I m ON o rT L PILOHTs�i AT FULL WW1 OUT)':2I ACRES a 5 t /1 1 VI WATER TREATMENT K' -I. -- LIMCrin ITo J - - ss�, P rPITLIMIT � /PIT \\‘ �� a - —J � FEEDSTOCK) -- f a STOCKPILE: — / 0 MI+ - NHADLRDOB 00 17 i_-_j_- _�_ OIL GALwgepNMoOLLEGEND: NED CATION 0 WELL SHUT IN 3y1 WELL- PLUGGED AND ABANDONED WELL - PRODUCING T WELL-TEMPORPAILYA84NOONED DTEXCENGSHALL BE THECASEOFPUBDDURINRIVATE EMERGENCHT HOURS Y, OR LY,PRONos[oEQUIPMENT OF PUBLIC OR PRIVATE EMERGENCY, OR T MAKE THE NECESSARY. REPAIRS O EQUIPMENT. PLANT CIIUTI6M AV G, OFFICES AND REP. FA(20) HOURS PER DAY, WI OPERATE TWENTY-FOUR*- BOARD OF COUNTY YCSEVEN MMISENNERS APPROVAL. THE FACILITY IRIE AIRIE DOG! 1 - DISTURBANCE PRA TOWNS FROM MARCH 15 • OCTOBER a GUARD SHACK AND SECURITY GATES AT MINE NCF/EXIT. . WELLS WITHIN THE PIT LIMIT AND CONSTRUCTION AREA ARE TO BE PLUGGED AND ABANDONED PROPERLY, THE GMOE OF THE PT FLOOR, PRIOR TO EXCAVATION. TS 0 150' 500' HNETYPELEGEND SYMROLLEGEND: PROPOSED REINFORCED CEMENTCONwFTF OSED EDGE OF ROAD PROPOSED GRAVEL MAJOR PROPOSED CONTOUR MIN RP POSED CONTOUR PROPOSED SECTIONpylOIE ING �v V EXISTING PRAIRIE DOG TOWN SERIONAOUARo fl5DAR Y UNTIBELOW UNDERGROUND GAS OEMOIInoN PROPOSEODATE HauLRoaD DEMOGAS G15 EASEMENT EXISTIN150' DEMO EASEMENT SCALE : 1' = 160 EXISTING GRAVEL ROAD AUGUST 2x24 mum D_9 COLORADO SAND COMPANY II, LLC KERSEY MINE MINE PROCESS PLANT & FACILITIES LAYOUT A� TRic TRCENVIRONMENTD„MAL CORP. oHR,Po,'g =4sR,P, D. oR Dry oR"wNN.. ,,,,, "RB,R N,PCRF0R.. oR.aEw:. M . �4 ,DRN.MRRR. „M, ATTACHMENT C Weed Control and Management Plan Prepared for: Colorado Sand Company II, LLC li C Table of Contents Acronyms and Abbreviations 1.0 INTRODUCTION 1 1.1 Project Description 1 1.2 Purpose 1 1.3 Objectives 2 2.0 NOXIOUS WEED DELINEATION 2 2.1 Existing Habitat and Vegetation 2 2.2 Noxious Weed Identification 3 2.3 Mapping 5 3.0 NOXIOUS WEED MANAGEMENT 5 3.1 Training 5 3.2 Preventative Measures 6 3.3 Treatment Methods 6 4.0 MONITORING 7 5.0 REFERENCES 8 Tables Table 1. List of Potential Weed Species in the Permit Area 4 Figures Figure 1. Project Vicinity Map Figure 2. Mine Plan Figure 3. Process Flow Diagram Appendices Appendix A. Weld County Noxious Weed Fact Sheets Appendix B. Weed Inventory Report (PLACEHOLDER) Appendix C. Completed Vehicle and Equipment Inspection Logs (PLACEHOLDER) Kersey Mine September 2024 Weed Control and Management Plan i i TRC Acronyms and Abbreviations Notation Definition BMP Best Management Practice CDA Colorado Department of Agriculture CNAP Colorado Natural Areas Program CSC Colorado Sand Company II, LLC Project Kersey Mine Project Permit Area Location of the Kersey Mine Project Plan Weed Control and Management Plan WCPWD Weld County Public Works Department Kersey Mine September 2024 Weed Control and Management Plan ii 1i TIRC 1.0 Introduction Colorado Sand Company II, LLC's (CSC) proposed Kersey Mine (Project) encompasses the S1/4 of Section 34, T06N, R63W of the 6`h Principal Meridian and all of Sections 2, 3, 10, 11, 14, and 15, T05N, R63W of the 6th Principal Meridian in unincorporated Weld County, Colorado. The proposed Project is located approximately 55 miles northeast of the Denver, Colorado metropolitan area; and, as depicted on the U.S. Geological Survey Kersey, Colorado 7.5° topographic quadrangles, is approximately 4.9 miles south from the intersection of Weld County Road 67 and Colorado Highway 392 (Figure 1). The Project, (i.e., the Permit Area) will be, in its entirety, located on and within the fee -simple (i.e., privately owned surface controlled by CSC, as lessee and/or its assignees, with access to Wells Ranch being controlled/limited by a secure, gated entry. 1.1 Project Description The proposed Project includes the construction of an open -cut sand mine pit facility, integrated wet and dry sand processing facilities, and final product storage and loadout facilities. Sand will be mined from an open -cut pit, stockpiled, and introduced to the wet plant which will mechanically separate, wash, and filter materials by grain size. Wet plant and decant water will be recovered in the clarifier unit for water recycling. The current proposed development plan includes the construction of the mining facility and an access/loadout road. Proposed Permit Area improvements associated with the facility will be completed as a temporary construction. Mine reclamation activities will be implemented following the conclusion of Project operation. The proposed Permit Area is presented in Figure 2. Proposed construction and facility setup will generally be completed in seven work phases. They include grubbing and clearing, access/loadout road construction, stormwater control measure construction, safety berm construction, site grading, facility equipment setup, and interim reclamation. The Process Flow Diagram is presented in Figure 3. 1.2 Purpose This Weed Control and Management Plan (Plan) describes conditions, measures, and best management practices (BMPs) that will be implemented by CSC and its contractors to avoid and minimize the establishment and spread of noxious and invasive plant species during the construction, operation, and site reclamation activities at the mine. CSC recognizes the potential for the spread of noxious weeds on public and private lands and is committed to following the procedures described in this Plan. This Plan will satisfy compliance with the Colorado Division of Reclamation, Mining, and Safety Code of Colorado Regulations (2 CCR 407-1) and follows Weld County Public Works Department (WCPWD), Weed Management Division BMPs. This plan will discuss in detail the following: • Measures to control introduction and spread of noxious weeds within the Permit Area • Worker training • Inspection procedures, activities, and equipment used in the Permit Area • Post reclamation monitoring for noxious weeds • Monitoring and control methods. Kersey Mine September 2024 Weed Control and Management Plan 1 li TR C For the purpose of this document, noxious weeds and invasive plant species (weeds) are defined by the Colorado Noxious Weed Act (1990), Colorado Revised Statue Title 35 Article 5.5 (CRS 35-5.5-101) as "an alien plant or parts of an alien plant that have been designated by rule as being noxious to have been declared a noxious weed by a local advisory board, and meets one of the following criteria: • Aggressively invades or is detrimental to economic crops or native plant communities • Is poisonous to livestock • Is a carrier of detrimental insects, diseases, or parasites • The direct or indirect effect of the presence of this plant is detrimental to the environmentally sound management of natural or agricultural ecosystems." 1.3 Objectives To avoid and minimize the establishment and spread of weeds both on and off -site during the construction, operation, and site reclamation activities at the Project site, CSC or its contractor will perform the following actions: • Identify areas within the Permit Area where specific weeds are established. • Identify areas where earth disturbance is proposed and whether there are weed populations that have the potential to establish and spread outside of the area. • Outline weed -control and abatement methods and practices to be employed during all phases of the project to minimize the establishment and spread of specific weed species. • Prevent the introduction of new invasive species that are not currently known to occur in the Permit Area. 2.0 Noxious Weed Delineation 2.1 Existing Habitat and Vegetation According to the Vegetation Information Report for the Kersey Mine (TRC 2023), the Permit Area is characterized as grassland with several gravel well pads and roadways interspersed throughout the site with flat to gently rolling topography. Herbaceous species comprised approximately 77 percent cover of the Permit Area with the remaining area shrubs (5 percent) and bare ground (18 percent). Trees were absent within the Permit Area. Four non-native species (cheatgrass [Bromus tectorum], burning brush [Bessie scoparia], foxtail millet [Setaria italica], and Russian thistle [Salsola tragus]) comprised approximately 62 percent of the total herbaceous cover. Russian thistle represented over 50 percent cover of the herbaceous species on site and was present in each vegetated herbaceous plot. The Permit Area is comprised of a relatively homogenous landscape; no wetlands and one former stock pond feature were identified within the Permit Area. Saltgrass (Distichlis spicata) was present in the National Wetlands Inventory mapped wetlands, but hydric soil indicators were absent and hydrologic indicators were only marginally present. One 0.38 -acre manmade stock pond was delineated along an ordinary high-water mark consisting of a defined bank situated above mud cracks. The stock pond contained no water at the time of the survey, and Kersey Mine September 2024 Weed Control and Management Plan 2 ti C vegetation was mostly absent except for intermittent patches of saltgrass and kochia (Bassia scoparia) along and above the ordinary high water mark bench. The region surrounding the Project area averages an annual high temperature of 89.6° F and an annual low temperature of 13.9°F. Summer temperatures during July and August average 92°F and 89°F, respectively. Winter temperatures during January and February average 46° F and 56°F, respectively. The average annual temperature is 47.5°F. The average annual precipitation is 14.8 inches. Average annual snowfall is 38.3 inches. May is the rainiest month, averaging 2.4 inches of precipitation. The grazed vegetative community within the Project area provides limited habitat for wildlife. However, the following state -listed sensitive wildlife species were identified as having the potential to occur in the Permit Area: • Black -footed ferret • Plains pocket gopher • Long -billed curlew • Mountain plover • Ferruginous hawk • Western burrowing owl These species and their habitats should be considered before any mechanical or chemical noxious weed control methods are initiated. 2.2 Noxious Weed Identification The Colorado Department of Agriculture (CDA) has evaluated noxious weeds throughout the state and has created a hierarchy policy for certain species. Noxious weeds are recognized as List A, List B, and List C species. According to CDA the list rating is defined as follows: A -List — Potential to be very invasive noxious weeds that quickly transform an area. The plants on this list either are not in Colorado yet or are present in very limited numbers and eradication of these species is still possible. These species are designated for eradication. B -List — Potential to be very invasive noxious weeds that quickly transform an area. These plants are typically already established in Colorado, however, on a local level (i.e., in Weld County) they may just be moving in. Therefore, the species on this list have control/suppression requirements and may have eradication requirements designed to stop the continued spread of these species. C -List — Potential to be very invasive noxious weeds that quickly transform an area. Species on this list require effective integrated weed management plans and may have local control/suppression/eradication requirements designed to stop the continued spread of these species. Fact sheets of weed species that have been found in Weld County are included in Appendix A. These fact sheets have been developed by WCPWD, Weed Management Division and CDA. A list of weed species of concern with potential to occur within the Permit Area is provided in Table 1 below. Kersey Mine September 2024 Weed Control and Management Plan 3 1i Tr�C Table 1. List of Potential Weed Species in the Permit Area Common Name Scientific Name Rating — (eradication, suppression) Cypress Spurge Euphorbia cyparissias A — e Hairy Willow -Herb Epilobium hirsutum A — e Japanese Knotweed Polygonum cuspidatum A — e Myrtle Spurge Euphorbia myrcinites A — e Purple Loosestrife Lythrum salicaria A — e Absinth Wormwood Artemisia absinthium B — e Black Hen bane Hyoscyamus niger B — e Bull Thistle Cirsium vulgare B — e Chamomile species Matricara perforate B — e Chinese Clematis Clematis orientalis B — e Houndstongue Cynaglossum officinale B — e Moth Mullein Verbascum Blattaria B — e Oxeye Daisy Leucanthemum vulgare B — e Plumeless Thistle Carduus acanthoides B — e Spotted Knapweed Centaurea stoebe B — e Sulfur Cinquefoil Potentilla recta B — e Tamarisk Tamarix rammosissima B — e Wild Caraway Carum carvi L. B — e Yellow Toadflax Liaria vulgaris B — e Canada Thistle Cirsium arvense B — s Common & Cutleaf Teasel dipsacaceae family B — s Eurasian Watermilfoil Myriophyllum spicatum B — s Jointed Goatgrass Aegilops cylindrica B — s Musk Thistle Carduus nutans B — s Russian Knapweed Centaurea repens B — s Scotch Thistle Onopordum acanthium B — s Yellow Nutsedge Cyperus esculentus B — s Boucingbet Saponaria officinalis B — es Common Tansy anacetum vulgare L. B — es Dalmatian Toadflax Linaria genistifolia ssp. dalmatica B — es Dames Rocket Hesperis matronalis B — es Diffuse Knapweed Centaurea diffusa B — es Hoary Cress Cardaria draba B — es Leafy Spurge Euphorbia esula B — es Perennial Pepperweed Lepidum latifolium B — es Kersey Mine Weed Control and Management Plan September 2024 4 1i TR C Common Name Scientific Name Rating — (eradication, suppression) Russian Olive Elaeagnus angustifolia B — es Cheatgrass/Downy Brome Bromus tectorum C — e Common Mullein Verbascum thapsus C — e Field Bindweed Convolvu/us arvensis C — es Puncturevine/Goatheads Tribulus terrestris L. C — e Source: WCPWD 2024, Weed Management Division A noxious weed inventory will be completed prior to the start of construction, following the procedures described in "Creating an Integrated Weed Management Plan - A Handbook for Owners and Managers of Lands with Natural Values (Colorado Natural Areas Program [CNAP] 2000), or similar guidance. A map and an ongoing list of weeds observed within the Permit Area during this weed inventory and through subsequent monitoring will be added to this Plan and presented in Appendix B. This list will be maintained and updated when additional weeds are identified. Additionally, the WCPWD Weed Management Division has identified Non -Native and Nuisance Plants of interest. If identified on site, CSC or its contractors will contact the Division and these plants will be managed on a case -by -case basis. These plants include Kochia (Kochia scoparia), Russian thistle (Sa/so/a tragus), Curlycup gumweed (Grindelia squarrosa), Salsify (Tragopogon dubius), Horseweed (Conyza canadensis), Black Medic (Medicago lupulina), and Blue lettuce (Lactuca tatarica). 2.3 Mapping The mapped location of weeds identified within the Permit Area during the weed inventory and subsequent inspections will be documented via GPS units, noted on field maps, and depicted on a map provided in Appendix B. The map will be utilized to show the area(s) of weed cover at the site. Subsequent updates to the map will be compared to the initial weed inventory to identify increasing, decreasing or stable trends of weeds within the Permit Area and will be utilized in developing additional control strategies (if needed). 3.0 Noxious Weed Management 3.1 Training Prior to construction, CSC will require its contractors to be familiar with this Plan and provide training regarding weed management to all individuals who visit and work within the Permit Area. Training will include weed identification, weed impacts on agriculture, livestock, and wildlife, weed proliferation, and fire prevention, as well as the preventative measures presented in this Plan. Kersey Mine September 2024 Weed Control and Management Plan 5 h) TR C 3.2 Preventative Measures The following preventative measures will be implemented to avoid and minimize the establishment and spread of weeds both on and off -site prior to construction, during construction, during operation, and during site reclamation activities at the proposed Project site: • Before ground -disturbing construction activities begin, the CSC -appointed biologist will conduct a baseline survey of the Project site to establish a weed inventory and map the location of weeds. The results of the weed inventory survey will be added to Appendix B. • Identified weeds will be flagged in the field by a CSC project biologist or its contractor. The flagging will alert construction personnel that weeds are present and access into these areas will be restricted until weed management control measures have been implemented. • All vehicles and equipment will be inspected for and cleaned (if needed) prior to admission to the Permit Area, to ensure they are free of soil and debris capable of transporting weed seeds, roots, or rhizomes. If cleaning is warranted, the vehicle and/or equipment will either be instructed to exit the Permit Area and return once cleaned or staged on 10 -mil or thicker plastic sheeting and washed using high-pressure water spraying equipment. Seeds, plants, debris, and water will be collected. The solids will be bagged and deposited with non -hazardous solid waste. The liquids will be allowed to evaporate. Upon completion the plastic sheeting will be folded onto itself and disposed of with non -hazardous solid waste. Vehicle inspection and cleaning activities will be documented, and a log will be kept in Appendix C. • Prior to and at the completion of each work shift, mine workers will inspect, remove, and dispose of weed seed and plant parts found on their clothing and personal equipment. Debris removed will be bagged and deposited with non -hazardous solid waste. Boot wash stations will be utilized when appropriate. • CSC and its contractors will limit the footprint of any vegetation and/or ground disturbance to the absolute minimum necessary to perform the activity safely and as designed. CSC will utilize a phased approach, concentrating and completing activities in specific areas before moving to other areas, when possible. • CSC and its contractors will avoid creating unnecessary soil conditions that promote weed germination and establishment. Contractors will work closely with the appointed biologist to identify BMPs for the site to promote native vegetation growth. • Following weed mitigation, cleared vegetation will be stockpiled and topsoil will be separated. The cleared vegetation will be disposed of in accordance with federal, state, and local regulations in a manner that prevents the material from re-establishing growth within the Permit Area or spreading off -site. • CSC and its contractors will ensure materials and seeds utilized during reclamation are certified as weed -free. These materials include but are not limited to straw, hay bales, mulch, topsoil, and seed. 3.3 Treatment Methods CSC will implement the following weed control measures in accordance with all federal, state, and local regulations and agency agreements. Additionally, treatment methods and materials Kersey Mine September 2024 Weed Control and Management Plan 6 ti C will be managed and handled in accordance with the Project Spill Prevention Control and Countermeasure plans, Stormwater Management Plans, and the Health and Safety Plan. Prior to construction — CSC or its contractor will first apply herbicides to "List A", "List B", and weeds listed in Table 1 that are classified as poisonous to livestock (refer to fact sheets in Appendix A) that were identified and mapped during the weed inventory. This focus will provide the most effective control strategy and the most benefit to native plant competition and establishment. The appropriate herbicide treatment and application rate and timing is identified on the species fact sheets included in Appendix A. Herbicides will be applied only by a CDA certified applicator, or by individuals under direct supervision of the certified applicator. Treatments will be conducted in a manner that minimizes potential impacts to sensitive plant and wildlife species, and pollution to surface and groundwater. During construction — CSC or its contractor will perform mechanical control of weeds through the use of mowing and cutting tools to sever above ground portions of weeds from its roots, and/or perform cultivating activities through grubbing and clearing which will scrap off topsoil, turn over the soil and strip the site of all vegetation. Stockpiled vegetation will be handled as described in Section 3.2 of this Plan. Ongoing — CSC or its contractor will perform subsequent herbicide treatments at the discretion of the appointed biologist at the conclusion of ongoing monitoring efforts explained in the following section. Subsequent treatments may be implemented to avoid and minimize the establishment and spread of weeds both on and off -site. Action will take place only when careful consideration indicates that leaving the weed populations unchecked will result in more damage than controlling it with available methods. Herbicides will be applied by a CDA certified applicator, or by individuals under direct supervision of the certified applicator. Treatments will be conducted in a manner that minimizes potential impacts to sensitive plant and wildlife species, and pollution to surface and groundwater. 4.0 Monitoring The implementation of this Plan will be monitored by CSC's appointed environmental inspector and documented in weekly monitoring reports and checklists during the growing season. Annual weed inventories will be conducted following the start of construction until one year after the completion of reclamation at the site to ensure the effectiveness of preventative measures and treatment methods. If monitoring surveys identify new colonization or spread of weeds within the Permit Area, preventative measures will be re-evaluated, and additional treatment will be implemented for weed species carrying a "List A" and "List B" rating. Kersey Mine September 2024 Weed Control and Management Plan 7 Ii -MC 5.0 References Colorado Natural Areas Program (CNAP). (2000). Creating an Integrated Weed Management Plan - A Handbook for Owners and Managers of Lands with Natural Values. CNAP, Colorado State Parks, Colorado Department of Natural Resources, and Colorado Department of Agriculture, Division of Plant Industry, Denver, CO. March 2000. Available online: https://www.cde.state.co.us/stateinfo/ TRC Companies, Inc. (TRC). (2023). Colorado Sand Company Kersey Mine Reclamation Permit Application Package, Exhibit J Vegetation Information. Prepared for Colorado Sand Company, LLC, April 2023. Weld County Public Works Department (WCPWD). (2024). Weed Management, Weed Management Division, WCPWD. Available online at: https://www.weld.gov/Government/Departments/Public-Works/Weed-Management Kersey Mine September 2024 Weed Control and Management Plan 8 �i TIRC Figures 0 a_ U a LL O a OO 0 31 Wel > 5N 63W ACCESS ROAD SITE ENTRANCE: LAT: 40°26'22.29"N LONG: 104°25'7.20"W KERSEY MINE PERMIT AREA BOUNDARY _ I PLANT AREA BASE MAP: USGS 7.5 MINUTE TOPOGRAPHIC QUADRANGLE, KERSEY QUADRANGLE (NAD 83). STATE PLANE ZONE: COLORADO NORTH (501) DATA SOURCES:TRC AMI PRIVATE ROAD 0 2,000 4,000 D FEET 1:66,000 1" = 5,500' NM PROJECT: TITLE: DRAWN BY: SITE EXIT: LAT: 40°26'9.13"N �. LONG: 104°24'4.00"W COLORADO SAND COMPANY II, LLC KERSEY MINE WELD COUNTY, COLORADO PROJECT VICINITY MAP J.STRONA CHECKED BY: B. TRACY APPROVED BY: E. PENATE DATE: SEPTEMBER 2024 C PROJ. NO.: 535891 FIGURE 1 526 COLE BOULEVARD BUILDING 3, SUITE 150 LAKEWOOD, CO 80401 PHONE: 303.792.5555 FILE: COLORADO SAND CO KERSEY MINE CAPW WORKING-TRD\00Tsa92CD-1 MINE PLAN.DWG - 8/29/24 • II • I II 0 SECIION 34 {Nor lxnLOlx TTT WERANCH AREA)� SECTION 35 WELLS RANCH PERMIT AREA BOUNDARYI • \ • STATE OF COLORADO A D • • I f I J -- - D LIMIT i?— III rl PERIM-A EABDUNDARr- /. I PIT LIMIT —\_ 12: e s0 — I Iii z AREA: 77 . L W RANCH COWAN • 0 PERMIT AREA BOUNDARY • • • STATE Or COLORADO • • SECTION TT TBN ROW m RANCH uc 1Y i{ PRAVICI RNOTE 2 ` q WELLS RANCH � 16 i AREA'. ACRES W Li PERMIT NUM I, .110819 SEE NO r rTEN'IINING, PLANT OPERATE EAAY PROCESSING, R (241 H0URSPER DAY, REPAIRS M WITHOUT RESTRICTION PICTION PER BOARD P COUNTY RWEP COMMISSIONERS APPROVAL. THE FACILITY MAY OPERATE SEVEN (7) 2 BURROWING OWL HABITAT - NO INITIAL DISTURBANCE TO PRAIRIE DOG TOWNS 3. 7STOErAM'S'S.V'NXETA2- BE LIMITED BY WELLS RANCH GUARD SHACK AND SECURiDe GATES AT MINE 4 EXISTING WELL TO BE PLUGGED AND ABANDONED FOR E SEQUENCE AREA. 5 TS -0 TO BE USED IN RECLAMATION BY THE END OP YEAR 6 OIL AND GAS WELL SYMBOL LEGEND: fJ ABANDONED LOCATION O WELL - SHUT IN lei WELL - PLUGGED AND ABANDONED itt WELL • PRODUCING 0 WELL -TEMPORARILY ABANDONED MINING SEQUENCE: PLANT IMPORT (YEAR D) V�� YEAR 1 V/h1 YEAR 2 //////A YEAR 3 YEAR YEARS A V YEARS V///,' YEAR„ �'///////✓� YEARS Y/////// YEAR f //// J STOCKPILE DISCARD 60 ACRES V. 7571 70 RANO.. 70 RANCH LLC YEAR 12 YEAR 13 r/// //^d YEARN l/// //AI YEAR IS YEAR IG I/<//e/�/a PERMIT AREA BOUNDARY l//// A //// A YEARn V//�/d YEAa1a/j��j� YEAR 19 TEMPORARY MINING DEFERRAL TONE-TMD2-1 YEAR 10I //// A TEMPORARY MINING DEFERRAL ZONE-TMD2-2 [-XiMILA YEAR 11 �// UNDISTURBED AREA • PERMIT AREA BOUNDARY • • ]lo PROCESS P'LAN'T AREA (SEE FIGURES D M NIDAL 1 GROWTH u / LINETYPE LEGEND, OWING CELLS OLDING CELLS PROPOSED EDGE OF ROAD PROPOSED EQUIPMENT MAIO PROPOSED CONTOUR MIND PROPOSED CONTOUR OE EXIST' 6 OVERHEAD ELECTRIC BUILD NG SECTION DIVIDE FERMI AREA BOUNDARY SECTION DUART,R5 EMS, 6 FENCE EXIST' G PRAIRIE DOG TOWN CAS DEMO GAS. SECTION 16 TRY R 03W STATE OF COLORADO SECTION 1 WE. RANCH 50 A • PERMIT AREA BOUNDARY i • C P BERNDT AREA BOUNDARY • 70 RANCH LLC 6 • SYMBOL LEGEND: 000 GENERAL DIRECTION OF ADVANCE REINFORCED CEMENT CONCRETE - PROPOSED GATE PROPOSED GRAVEL 990 HPUL ROAD WELL • CONSTRUCT FF,A, 0 000 1920 SCALE NO AUGUST 2024 FIGURE 2 COLORADO SAND COMPANY II, LLC KERSEY MINE MINE PLAN �i TIC TRC ENVIRONMENTAL CORP. 1S26 COLECOEB ,SUITE 15°LAKEWOOD. CO 1 DESIGN REVISION DRAWN [NECKED BY OKRAIEWSKI 100 NUMBER. CONVEYOR ----------------- ------ RETURN TER PUMP SPRAY WZR PUMP WA � 5103 � JUNE 2024 FIGURE' 3 COLORADO SAND COMPANY II, LLC KERSEY MINE PROCESS FLOW DIAGRAM TIC TRC ENVIRONMENTAL CORP. REVISION OP OR IV PI PE ON APPENDIX A Weld County Noxious Weed Fact Sheets Rangeland -Pasture Recommendations Absinth Wormwood Identification and Management Absinth wormwood (Artemisia absinthium) is a robust perennial forb that grows 16 to 48 inches tall with large alternate leaves that are oblong in shape. Leaves are divided 2 to 3 times into deeply lobed leaflets. Coarse stems appear to be clumped and may be woody at the base. Absinth dies back in the winter and regrows from the soil level each spring. It has a slightly bluer, gray -green color than our native sages. The color is partly due to numerous very short, fine hairs on the leaves and stems. Flower stalks appear at each upper leaf node and produce numerous flower heads, 1/8 inch diameter, which appear from late June to mid -August. Each flower head has many small inconspicuous yellow flowers and each fruit contains one seed less than 1/16 inch long. These small seeds are easily dispersed by wind, water, animals and in hay. Absinth is a prolific seed producer and seed soil longevity is estimated at 10 years. Seedlings may emerge any time soil moisture is available and may go unnoticed for some time as the seedling produces several small leaves close to the soil surface before bolting. Absinth wormwood is a member of the Sunflower family. It was introduced from Europe as an ornamental herb and is easily recognized by its strong sage odor. It is most often found on dry soil, overgrazed pastures and rangeland, wastelands and roadsides. Absinth wormwood is a relative newcomer to Colorado and with the exception of one mountain area has infested a minimal number of sites. Absinth has been identified in Weld County, a site far removed from the majority of Colorado acres. Prevention is the best control. Proper grazing management and rotational grazing are among the best preventative measures. On the backside of this sheet are absinth wormwood management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of absinth wormwood. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Proper grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures are more resistant to absinth wormwood invasion. Bare spots caused by overgrazing are prime habitat for weed infestations Mechanical - Hand pulling or digging when the soil is moist is possible with very small infestations. Proper disposal of specimens is imperative if the plants are removed after flowering or seed set. Mowing alone is not an effective control measure. Some success has been realized if late season mowing is followed by fall herbicide application. The success is not as significant as mid -summer herbicide application alone. Biological - There is no biological control available at this time. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Clarity + 2,4 D Amine 1 qt./acre for each product or 1 oz/gal water for each product Apply when the plant is 12 inches tall through flowering. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water Milestone 7 oz/acre or 0.35 oz/gal water Apply when plants are actively growing. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water Curtail 2 qt/acre or 2 oz/gal water Spring- at 6-10" growth stage to pre -bud and in fall rosette stage. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Tordon 22K *this is a Restricted Use Pesticide* 1 pt/acre or 0.5 oz/gal water Apply when the plant is 12 inches tall through flowering. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water Updated on: 07/2015 List B Species Colorado Department of Agriculture 305 Interlocken Pkwy Broomfield, CO 80021 (303)869-9030 weeds@state.co.us Key ID Points 1. Shallow lobed leaves that have sticky hairs. 2. Flowers have purple centers and veins. Rangeland, pasture, and riparian site recommendations Black henbane Identification and Management Identification and Impacts Black henbane (Hyoscyamus nlger) was introduced from Europe as an ornamental and medicinal herb. In Colorado it is mostly found on the western slope. The plant blooms June through September and may be an annual or biennial. A mature plant reaches 1 to 3 feet in height with foliage that has a fowl odor. Leaves are shallowly lobed to coarsely toothed with sticky hairs. The outer part of the flower is brownish yellow in color with a purple center and veins. Fruits are approximately 1 inch long with 5 lobes. A11 parts of Black henbane are poisonous to both livestock and humans when ingested. However; the plant is usually avoided by livestock due to the foul odor. The plant is a strong competitor for moisture and nutrients and produces a persistent litter effecting germination and growth of native plants. Black henbane invades disturbed and overgrazed sites. A good preventable measure is to guard against overuse. Habitats for Black henbane included disturbed open spaces, roadsides, fields, waste places and abandoned gardens. It grows in most soil types but likes sandy or well drained loam soils. The seed viability or longevity is considered to be 1 to 5 years. The key to effective control of Black henbane is guarding against disturbance and overuse, this can prove to be a good preventative measure against black henbane. Mechanical control and chemicals are the most commonly recommended method. Controlling plants in the spring or early summer prior to seed production is most effective, follow-up treatments are recommended to pick up missed or late bolting plants. Details on the back of this sheet can help to create a management plan compatible with your site ecology. Black henbane is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be either eradicated, contained, or suppressed depending on the local infestations. For more information visit www.colorado.gov/ag/csd and click on the Noxious Weed Management Program. Or call the State Weed Coordinator at the Colorado Department of Agriculture, Conservation Services Division, 303-239-4100. Black henbane 5il• IMi^.irk dui, 0•1,e,.. La,.. .. - a...� .,. Weal..,,.5.,,, -, ..._ ,. ;... Photos © (2 on bottom, left): Steve Dewey, Utah State University; (Top left and top center): Mary Ellen Harte, forestryimages.com and Map above by Crystal Andrews, Colorado Department of Agriculture. 1 2 Integrated Weed Management recommendations List B Species Management Recommendations http://www.colorado.gov/ag/csd CULTURAL Cultural controls are possible in theory, but are very time consuming and expensive. Complete removal of any seedlings or newly established plants by continual hand pulling is also possible. BIOLOGICAL here is no biological control available for Black henbane. Since biological control agents take years to research, develop and release, no releases are expected in the foreseeable future. For more information, contact the Palisade Insectary of the Colorado Department of Agriculture at 970-464-7916. MECHANICAL Hand pull or dig from moist soil, so the entire tap root system can be removed. illage will control henbane, but is usually not recommended due to the land it occupies: rangeland, roadsides and pastures. Be sure to bag specimens carefully if removed during or after flowering. Integrated Weed Management! Controlling plants in the spring or early summer prior to seed production is most effective, follow-up treatments are recommended to pick up missed or late bolting - plants. Constant monitoring ofsite after last adult flowering plant is removed is suggested since seed viability can be up to 5years. HERBICIDES NOTE: The following are recommendations for herbicides that can be applied to range and pasturelands. Rates are approximate and based on equipment with an output of 30 gal/acre. Please read label for exact rates. Always read, understand, and follow the label directions. herbicide label is the LAW! Herbicide Rate Application Timing Metsulfuron (Escort XP) 1 oz. product/acre + 0.25%v/v non-ionic surfactant Surfactant absolutely necessary. Apply late bolt to early flower. (Summer to Early Fall) Chlorsulfuron* (Telar) 1 oz. product/acre + 0.25%v/v non-ionic surfactant Apply late bolt to early flower. (Summer to Early Fall) Chlorsulfuron + Metsulfuron(Cimarron Plius) 0.625-1.25 oz./acre +0.25%v/vnon- ionic surfactant Apply late bolt to early flower. (Summer to Early Fall) Note: *This herbicide has residual soil activity that will affect all broadleaf seedlings germinating after application has occurred. Additional herbicide recommendations for other species can be found at: aoo.al/TvWnv9 The Top to bottom photos, © (Top 2 photos) Stevens County (Washington State) Noxious Weed Control Board; and bottom photo David Hallinan, Bannock County Weed Superintendent, Idaho Weed Awareness Campaign. Black henbane Rangeland -Pasture Recommendations Bouncingbet Identification and Management Originally from Europe, bouncingbet (Saponaria officinalis) also known as soapwort, is an escaped ornamental found commonly in pastures, on roadsides, and in waste areas. A Colorado B List Noxious weed, it is a member of the Pink family. Bouncing bet is a perennial, 1-3 feet tall reproducing through underground rhizomes and seed. Most invasive colonies develop from underground rhizomes. Stems are erect and stout, jointed, with opposite smooth leaves. Leaves are paired on the stem, 1 to 4 inches long and V2 to 2 inches wide, with 3 distinct veins. Leaf margins are smooth. Leaves originate at swollen nodes on the stem. The flowers of bouncingbet are found densely clustered at the ends of main stems and branches and consist of 5 petals. Each petal has a distinct notch or indentation at the end. Flower color ranges from white to pink. Flowers are fragrant and are present from July -September. Seeds are found in capsules and are dull -black in color. Most plants will foam if crushed and rubbed. The plant has been used for soap and is being studied for medicinal uses. Bouncingbet is potentially toxic to animals and humans if ingested. Although the entire plant is poisonous, the seeds contain the largest concentration of toxic saponins. Most animals will avoid eating seeds in contaminated feed because it is apparently distasteful. Livestock will also avoid bouncing bet in pastures unless the grass is in short supply and dry. On the backside of this sheet are bouncingbet management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304- 6496 ext 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Bouncing bet. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Control methods include pulling or cutting flowering stalks to prevent seed production. When pulling mature plants, stems often break off and the taproot can resprout if not removed. The site will need to be monitored for several years as available seeds will continue to germinate. Flower heads should be bagged for landfill disposal or dried and burned where permissible. Biological -There is no recommended biological control at this time. Herbicides - Selectively applying a broadleaf herbicide according to label recommendations may also be an effective means of control. Herbicides, if used, should be applied to the rosettes in the late fall or early spring to avoid damage to adjacent vegetation. The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup UltraMax 1.6% solution or 2 oz/gallon water Apply at early plant growth. Use caution when applying near grasses or other desirable vegetation. Roundup will possibly kill surrounding vegetation. No residual soil activity. Non -selective herbicide. Will kill all vegetation. Outlaw (2,4-D and Dicamba) 1 to 2 pints/acre or 0.5 oz — 1.0 oz/gallon water Spring- at emergence of seedlings. Continue until frost. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Grazing restrictions. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- at or just after full -bloom and/or fall. DO NOT apply when outside temperatures will exceed 85 degrees. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Garden Replacement Options Native garden replacement plants for bouncingbet include Rocky Mountain bee plant (Cleome serrulata) wild geranium (Geranium viscosossomum), fireweed (Epilobium angustifolium), Palmer penstemon (Penstemon palmeri), and penstemon `Prairie Jewel' (P. grandiflorus `Prairie Jewel). Cultivated garden replacement plants for bouncingbet include purple coneflower (Echinacea spp.), garden phlox (Phlox paniculata), and pinks (Dianthus spp.). Rangeland -Pasture Recommendations Bull thistle Identification and Management Bull thistle (Cirsium vulgare) is a non-native biennial forb that reproduces solely by seed. A biennial is a plant that completes its lifecycle within two years. During the first year of growth, bull thistle appears as a rosette in spring or fall. During the second year in mid to late spring - the stem bolts, flowers, sets seed, and the plant dies. Flowering may occur from early June until the first snowfall or hard frost. Pink - magenta to purple flower heads top each stem. Flower heads are "gumdrop" shaped and spines extend all around the base of the flower heads. A single flower head can produce from 40 to over 250 seeds, and individual plants may have anywhere from one to 475 flower heads or more. Making it a prolific seed producer, therefore, the key to managing this plant is to prevent seed production. Bull thistle can grow up to 6 feet tall. The leaves are green on the upper side, and woolly on the lower side giving it a grayish appearance. The bull thistle prefers full sun, it cannot tolerate shade. It requires moist soils. Bull thistle tends to invade disturbed, overgrazed areas. Once a pasture is infested, the livestock carrying capacity for that area is significantly decreased. Bull thistle may also occur on rangeland, roadsides, ditches, riparian areas, and trails. On the backside of this sheet are bull thistle management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of bull thistle. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Mowing or chopping is most effective when musk thistle plants are at bud stage. Grubbing or digging the plants below the root crown level is effective as well. Do this while the plant is in the rosette stage. Biological - Livestock tend to avoid grazing on bull thistle, although horses and cattle have been known to eat the flowerheads. Two exotic weevils, the flower head weevil (Rhinocyllus conicus) and the rosette weevil (Trichosirocalus horridus) have been introduced in several states, and appear to be effective biological control agents that limit populations of bull thistle. However, these insects are not in use in Wisconsin due to the risks presented to rare native thistles. When used together, these insects provide fair to good control. Expect to wait at least 3 to 5 years for the insects to establish significant populations and achieve optimum management results. Insects can be obtained at no charge from the Colorado Department of Agriculture. Please call 970- 464-7916 or go to www.palisadeinsectary.com for more information. Herbicides — The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow the herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments 2,4-D Amine 1 qt./acre or 1 oz/gal water Spring/fall rosette — before flowering stalk lengthens. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 1.5 — 2 qts./acre or 1.5-2.0 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Clarity 1 qt./acre or 1.0 oz/gal water Spring rosette — before flowering stalk lengthens and/or late fall treatment of rosettes. DO NOT apply near or under trees and/or shrubs or when outside temperatures will exceed 85 degrees. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Milestone 3 to 5 oz/ acre Apply to plants in the spring and early summer at rosette or bolting stage or to the fall rosette. It is permissible to treat seasonally dry wetlands and transitional areas between upland and lowland sites. DO NOT rotate to a broadleaf crop within 1 year of application. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Rangeland -Pasture Recommendations Canada thistle Identification and Management Canada thistle (Cirsium arvense) is a non-native deep-rooted perennial that spreads by seeds and aggressive, creeping horizontal roots (rhizomes). Canada thistle can grow 2 to 5 feet in height. The leaves are oblong, spiny, bright green in color, and are only slightly hairy on the undersurface. Flowers occur in small clusters that form on the ends of branches. They are about 1 cm in diameter, tubular shaped, and vary from white to purple in color with a strong vanilla scent (female flowers). Canada thistle emerges from its root system from late April through May. It begins to flower in late spring to early summer with increase in day length. Canada thistle only produces about 1,000 to 1,500 seeds per plant. Typically, it reproduces vegetatively through a creeping root system, and can quickly form dense stands. Every piece of root, from 1/ to 1 inch in length, is capable of forming new plants. The key to controlling Canada thistle is to eliminate seed production and also to reduce the plant's nutrient reserves in its root system through persistent, long-term management. Canada thistle is one of the most feared noxious weeds in the U.S. as it can infest many land types, from roadsides, ditch banks, riparian zones, pastures, irrigated cropland, to the most productive dryland cropland. Forage production is severely reduced because cattle will not graze near infestations. Combining control methods for Canada thistle is imperative. The weed needs to be continually stressed, forcing it to exhaust root nutrient stores and eventually die. Of all control methods, prevention is most important. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. On the backside of this sheet are Canada thistle management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 400-3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Canada thistle. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to Canada thistle invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Mowing can be effective if repeated at about one -month intervals throughout the growing season. Combining mowing with herbicides will further enhance control of this weed. Apply herbicides in spring and/or fall, and then mow during the summer months. Biological - Canada thistle is typically unpalatable to livestock. Although, cattle have been known to eat the plant when it is in the early growth stages. A gall fly, Urophora cardui, is effective on large infestations and when combined with other control methods. Insects can be obtained at no charge from the Colorado Department of Agriculture. Please call 970-464-7916 or go to www.palisadeinsectray.com for more information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Milestone 5-7 oz./acre or 2.5 ml/gal water Spring- up to early bud stage and fall rosette stage. Safe near a number of trees. Check label for more information. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 2-3gts./acre or 2.0-2.5 oz/gal water Spring- at 6-10" growth stage to pre -bud and in fall rosette stage. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Telar XP 2 oz/acre Apply from rosette to flower stage when all plants have emerged. Add non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- early bud stage and fall rosette stage. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Rangeland -Pasture Recommendations Chamomile Identification and Management Also Known as: scentless false mayweed, corn chamomile or false chamomile Scentless chamomile (Matricara perforata) is a native of Europe and was introduced to the United States and Canada as a seed contaminant. It has become naturalized in the U.S. and is now present in 37 states. Scentless chamomile is an annual, biennial, or short-lived perennial that reproduces by seed. The peak periods of germination are autumn and spring when moisture is available. When seedlings emerge a dense mat is produced which can quickly outcompete other native species. A mature scentless chamomile plant is between 6 and 20 inches tall. The leaves are alternate on the stem,1 to 2 inches long, finely divided and fernlike and odorless when crushed. The flowers are white in color, daisy -like and are solitary on each stem. A yellow central disk is surrounded by the white petals. Flowering begins in May and continues until a killing frost. Habitat for scentless chamomile includes hayfields, pastures, roadsides, stream banks and fence lines. It is most prevalent in disturbed soil. Scentless chamomile thrives in high soil moisture and prefers bright light. Mayweed chamomile (Anthemis cotula L.) is also known as stinking chamomile and dog fennel. This plant shares its growth characteristics, habitat requirements and mode of reproduction with Scentless and Corn chamomile. Mayweed chamomiles most distinguishing characteristic is a strong unpleasant odor when the foliage is crushed. Corn chamomile (Anthemis arvensis) is also known as mayweed and scentless chamomile. This plant is essentially identical to Scentless chamomile and Mayweed chamomile. It has been identified very rarely in Colorado. On the backside of this sheet are Scentless chamomile management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Department, Weed Division at (970) 304-6496 ext 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of the chamomiles. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to chamomile invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Frequent shallow tillage can help exhaust the seed bank in non- native areas. Mowing is not an effective tool for long term control as the plant will prostrate itself (limit growth height to below the mower blades). In the short-term, mowing will assist by reducing seed production. Hand pulling can be effective on small infestations. Biological - There is no biological control available for Scentless chamomile. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Optimum results occur when the plants have recently received moisture and are actively growing. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Escort XP 0.33 oz product/ac Apply when plant is in rosette to bolting growth stage. (Spring to early summer) May be applied near or under trees.. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Telar 0.33 oz product /ac Apply when plant is in rosette to bolting growth stage. (Spring to early summer) May be applied near or under trees.. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Milestone 7 oz/ac Apply when plant is in rosette growth stage. (Spring to early summer) May be applied near or under trees and to the waters edge. Add non-ionic surfactant @ 0.32 oz/gal water or 1 .t/100 :al water. ►u ye_ . _» �.. @m �( y� 40� � A a a �,. ' aty ;' //JJ f� b 1 �.. I- ( - Scentless Chamomile White Aster Photo's courtesy of: Ann Larson and Irene Shonle. Rangeland -Pasture Recommendations Cheatgrass Identification and Management Commonly referred to as cheatgrass, (Bromus tectorum) it is also known as downy brome, downy cheat and bronco grass. It is widely distributed throughout the United States and has been reported to be the dominant species on more than 100 million acres of the intermountain west. Cheatgrass is unique in that it occupies a dual role as a serious weed and important early season forage. In terms of volume of forage produced and extent of area covered it is the single most important spring forage. Cheatgrass can maintain dominance for many years on sites where native vegetation has been eliminated or severely reduced by grazing, cultivation or fire. Cheatgrass is a winter annual member of the grass (Poaceae) family. It reproduces by seed which germinates in the fall, over winters as a seedling and flowers in the spring. Seed can remain viable in the soil for 2 to 5 years. Cheatgrass can grow in almost any soil type and readily adapts to varying precipitation. Cheatgrass can be several inches to more than 18 inches tall. It has a nodding seed head with many finely hairy drooping spikelets. As it matures the seed heads and foliage often become reddish and then progress to a light tan. The mature seeds readily penetrate clothing and are frequently a problem in dog's ears and noses. Cheatgrass is found in both disturbed and undisturbed sites. The largest infestations are usually found in overgrazed range and pasture, abandoned fields, eroded sites and waste areas. The greatest competitive advantage following a fire goes to cheatgrass because the native shrubs and perennial grasses cannot recover as quickly allowing cheatgrass to establish a monoculture. On the backside of this sheet are cheatgrass management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of cheatgrass. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to cheatgrass invasion bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Fire, mowing, grazing, tillage, and inter -seeding competitive species have all shown promise in reducing cheatgrass populations. Long lasting control requires a combination of chemical, physical, vegetative suppression and proper livestock management. Biological -Biological control is limited. Rabbits and mice will feed extensively on the seedlings as will migratory grasshoppers. But there is no long-term biocontrol agent available. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Plateau 4 to 6 oz/acre Fall application as a pre -emergent prior to a hard freeze is optimum for control. Use a methylated seed oil surfactant (MSO) at 0.32 oz/gal water or 1 qt/100 gal water. The 12 oz rate of Plateau may cause injury to some cool season grasses. Panoramic 2 SL 4 — 8 Oz/Acre Apply pre- or post emergent in late summer or early fall. Use a MSO surfactant at 0.32 oz/gal or 1 gt/100ga1 water. The 12 oz rate of Panoramic 2SL may cause injury to some cool season grasses. Laramie 25DF 4 oz/acre An early post -emergent option. Must be activated with rainfall and applied when soil temps are cool. Moisture must arrive within 2-3 weeks of application. Add a non-ionic or MSO surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Glyphosate *Non -selective herbicide. 41% concentrate min. 16 to 24 oz/acre Apply in fall or early spring. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Use caution when applying near grasses or other desirable vegetation Rejuvra 5 oz/acre A pre -emergent chemical — it will not kill established growing plants. Can be tank mixed with Glyphosate, Panoramic 2SL or Plateau. Apply in August to March. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Prowl H2O Short Term 2-4 months: 2.1 quarts/acre Long Term 6-8 months: 4.2 quarts/acre A pre -emergent chemical —it will not kill established growing plants. Can be tank mixed with Glyphosate, Panoramic 2SL or Plateau. Spray solution may stain porous surfaces Length of control is dependent on weather conditions. Not labeled for use in range and pasture settings. Updated on: 07/2015 List B Species Colorado Department of Agriculture 305 Interlocken Pkwy Broomfield, CO 80021 (303)869-9030 weeds@state.co.us Key ID Points 1. Solitary flowers with four yellow sepals. 2. A herbaceous to woody vine climbing perennial. Rangeland, pasture, and riparian site recommendations Chinese clematis Identification and Management Identification and Impacts Chinese clematis (C/ematis onenta/is) is a herbaceous to woody vined perennial that is native to Eurasia. It is an escaped ornamental species that is a deciduous climber growing up to 12 feet. Solitary flowers have four yellow sepals (petal -like structures) that are often nodding. Each flower produces numerous feathery, long- tailed fruits which are conspicuous all winter. The plant flowers from August to September. Habitats for Chinese clematis include roadsides, riparian corridors and rocky slopes. It is sometimes found in open woods. Plants prefer sunny areas but have shown to be somewhat shade tolerant. Chinese clematis prefers well -drained soils. hinese clematis can cause death to young trees and brush. It outcompetes native shrubs and herbaceous species. Plants will completely cover; rock walls, trees, bushes and fences. The juice of freshly crushed leaves and stems have blister causing agents. The key to effective control of Chinese clematis is preventing the plants from going to seed. Pulling the woody stem prior to flowering can be an effective control. Chemical treatments are also effective when dealing with Chinese clematis. Details on the back of this sheet can help to create a management plan compatible with your site ecology. hinese clematis is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be either eradicated, contained, or suppressed depending on the local infestations. For more information visit www.colorado.gov/ag/weeds and click on the Noxious Weed Management Program. Or call the State Weed Coordinator at the Colorado Department of Agriculture, Conservation Services Division, 303-239-4100. Chinese clematis .311e11110,..tme. _.. _ _..,._ ._,,,.nw........_,._ Photos and Map © Colorado Department of Agriculture. 1 Clematis or/entails 2 Integrated Weed Management recommendations List B Species C/1 O +a C6 cu V CC cu co G http://www.colorado.gov/ag/weeds CULTURAL Cultural controls are possible in theory, but are very time consuming and expensive. Complete removal of any seedlings or newly established plants by continual hand pulling is also possible. BIOLOGICAL here is no biological control available for Chinese clematis. Since biological control agents take years to research, develop and release, no releases are expected in the foreseeable future. For more information, contact the Palisade Insectary of the Colorado Department of Agriculture at 970-464-7916. MECHANICAL Hand pull or dig when soil is moist. Make certain to pull all the roots and bag specimens carefully so as to not scatter seeds if flowering. /ntegratedWeea Management - The most effective contra, method for dealing with Chineseclematis is preventing the plantfromgo/nc to seed. Pulling the plant from the ground, .by the woody stem, prior to thep/am flowering is the most effective control. Chinese clematis a/so responds we// to chemical treatments HERBICIDES NOTE: The following are recommendations for herbicides that can be applied to range and pasturelands. Rates are approximate and based on equipment with an output of 30 gal/acre. Please read label for exact rates. Always read, understand, and follow the label directions. The herbicide label is the LAW! Herbicide Rate Application Timing 2,4-D amine 2 qts. product/acre at 4.0 lb active ingredient/gallon of product + 0.25% v/v non-ionic surfactant Apply anytime when the plant if actively growing. Will damage neighboring brush species, if present. Imazapic (Plateau, Panoramic) 12 oz. product/acre + 1 qt./acre methylated seed oil Apply in the fall at flowering growth stage. Aminopyra lid (Milestone) 4 oz. product/acre + 0.25%v/v non-ionic surfactant Apply at flowering growth stage in the fall. Additional herbicide recommendations for other species can be found at: www.colorado.gov/agconservation/CSUHerbicideRecommendations.pdf Topto bottom photos,©(Top2 photos) Stevens County(Washington State) Noxious Weed Control Board;and bottom photo David Hallinan, Bannock County Weed Superintendent, Idaho Weed Awareness Campaign. • N V cu cu V Common Tansy Identification and Management common tansy (Tanacetum vulgare L.) is a perennial plant in the Asteraceae family, also known as golden buttons and garden tansy. Mature plants range from 1.5 to seven feet tall. The stem leaves are alternate and oblong. Leaves are deeply divided with four to ten pairs of leaflets. Glands appear on the leaf surface. The leaf mar- gins are dentate. From afar, leaves have a fern -like appearance and have a strong odor when crushed. Stems are stiff, up- right, ribbed often purplish -red to green in color, and hairless. Common tansy has only button -like perfect disc flowers; it lacks ray flowers. Yellow disc flowers are numerous and arranged as a flattened dense cluster at the terminal end of the stems. The outer ring of disc flowers are pistillate. Ovate shaped phyllaries that surround the head are arranged in series. Phyllary margins are lighter in color than the center. In Colorado, flowering typically starts in June lasting to September. Seeds are yellowish brown achenes with short, five -toothed crowns. One plant can produce up to about 50,000 seeds. Seeds is well adapted to cold environments with germination rates as high as 70% (Gucker 2009). Seed longevity is at least two years, and most seeds remain near the parent plant since they lack wind - dispersed structures (Gucker 2009). Roots are robust, often with rhizomes that can be woody, coiled and at least 51 inches below the soil surface (Gucker 2009). Rhizomatous spread occurs, but reproduction is primarily by seed (Gu- cker 2009). Common tansy is often confused with Achillea millefolium ('Moonshine' yarrow), which is a similar height, leaf structure, and has yellow terminal flowers. When common tansy is not in flower, it can also be confused with Conium macu- latum (poison hemlock) because of its leaf structure, the stiff ribbed stems and corymbiform flower head. In Colorado, common tansy is mostly found along the banks of irrigation ditches, streams, seeps and roads (EDD- MapS 2018). It is also found in residential areas as an ornamental, and occasionally on semi -arid rangelands and pastures (EDDMapS 2018). It survives cold, prefers wet environments and full sun but can tolerate partial shade (Gucker 2009). Common tansy is reported predominant- ly in the northern portion of the United States (EDDMapS 2018). common tansy T ncretum vedgare 201fi Stateside Distreal{en vi Calerab Ww eonaaly ttl Vaned eon Based an 2016 Quaronqusd and FOO/Aapi Field Surrey Data Arm ff... to rrrw...batA men ry•earrsrvwn.w ea. ewix.us; Leo,. by ...Ma ppvmanl genera., Ay COLOR•00 1-t6 ere yt slao.cn With adequate moisture common tansy can outcom- pete and displace native and desirable species; allelopathy may be a factor (Gucker 2009). When stands get robust, it can reduce ir- rigation water flow (Gucker 2009). Its seeds float, so water can be a vector and downstream riparian cor- ridors and irrigation chan- nels can become infested. It tends to be fairly aggressive and difficult to control. SEINet Herbarium of Hollis Koster Key ID Points 1. Yellow button - like composite flower heads that lack ray flowers 2. Fern -like pinnately divided alternate leaves, foul smell 3. Ribbed stiff tall stems 4. Dense woody - like root mass fl a f'1 co r-i- E a (0 E I� List B Integrated Weed Management Recommendations Effective integrated management means using a variety of eradication methods along with restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes. Restore degraded sites. Avoid soil disturbance. Prevent seed production and seeds from dispersing, e.g. on contaminated equipment. Rest sites until restored. Modify land use practices. Use methods appropriate for the site, other plants present and land uses. CULTURAL Common tansy prefers bare mineral soil, high light and few competitors to germinate, so maintain deep mulch and litter cover and select shade producing species. Since common tansy forms robust rhizomatous roots, select plants that will have equally or more competitive below ground root structures that includes an assemblage of shrubs, forbs, cool and warm season grasses, annuals and perrenials. Use locally adapted species that are ecologically appropriate for the site and ecoregion to improve competitiveness. Implement whole site restoration, where needed. Common tansy prefers frequent disturbance and flooding, so where possible, modify the hydrology and disturbance regimes until control is established, especially where dense colonies exist. Z . © University of Colorado BIOLOGICAL Common tansy is toxic to cattle, not recommended for horses, however confined domestic sheep and goats eat it during early flower (Gucker 2009). Targeted grazing can be effective, but opens the canopy for new seeding or shoot growth; repeat integrated entries with chemical (Gucker 2009). Non -targeted grazing should be light, with less than 60% defoliation to maintain competitiveness against common tansy (Gucker 2009). There are no biological control agents authorized in Colorado that would effectively control this species. MECHANICAL Because of common tansy's robust roots and prolific seed production, mechanical methods are best for residential areas and small infestations. Remove all root biomass or sever roots below the soil surface early in the season to reduce energy storage and before seed production. Mowing, chopping, hand -pulling, and deadheading leaves roots behind and stimulates flower production, requiring consecutive years of season -long treatments. Mowing disperses seeds and expands the infested area. Collect, bag, and dispose of or destroy all flowers; seeds could mature and germinate if left on the ground. Its large size may increase fire hazard. High intensity prescribed fire may top kill plants but leave roots mildly affected (Gucker 2009). Combine prescribed fire with other methods to improve treatment efficacy (Gucker 2009). © Dave and Karin Hanna, Techline News CHEMICAL NOTE: Herbicide recommendations to control common tansy in pastures and rangeland are found at: https:// goo.gl/TvWnv9. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Consult local turf and ornamental experts for herbicides appropriate for residential settings. Always read, understand, and follow the label directions. The herbicide label is the LAW! Colorado Department of Agriculture - Conservation Services 305 Interlocken Parkway Broomfield, CO 800zi (303) 869-9030 www.colorado.gov/ag/weeds Rangeland -Pasture Recommendations Teasel Identification and Management Teasel was introduced to North Americana from Europe in the 1700's, possibly as an ornamental but more likely the dried flowers were used in wool production. Today it is commonly used in horticultural plantings and dried flower arrangements. Teasel produces an abundance of seeds. A single plant can produce 2,000 seeds: 30-80% of those may germinate. Seeds remain viable for at least 2 years. Due to this the population has rapidly expanded in the last 30 years. Teasel is a biennial, which means it's a rosette for a minimum of one year; then sends up a tall, flowering stalk that dies after flowering. The rosette stage can vary according to the amount of time needed to acquire enough resources for the flowering to occur. During the rosette stage it develops a large taproot, reaching 2 feet long, and 1 inch in diameter at the crown. Teasel grows in open sunny habitats that range from wet to dry levels. It is found on roadsides, irrigation ditches, abandoned fields, pastures, waste places, the river bottom and forests. It is an aggressive competitor in disturbed areas. Teasel can displace native vegetation and decrease range quality. Teasel is not palatable and is usually ignored by livestock. Seeds can be spread down river in the water... Cut leaf teasel (dipsacaceae family) The plant can reach 4-10 feet tall. The flowers are white; below the flowers are several long, slender, stiff bracts that curve upward. Flowers from July to September. The leaves are divided into stalkless segments, the margins are bristley fringed. The leaves are also joined at the base, cupped to catch rain. The stems are prickly. Common teasel (dipsacaceae family) The plants can reach 3-6 feet tall Flowers are purple. Below the flowers are several long, slender, stiff bracts that curve upward. Flowers from July to September The leaves are lance shaped and up to 10 inches long. The leaves are also joined at the base, cupped to catch rain. The stems are prickly. Recommended management methods: Cultural - A late spring burn can be useful in controlling a dense area of teasel. Manual removal of rosettes in the old burn area will also help with control. Mechanical - In small areas the rosettes can be dug up, getting as much root as possible to prevent resprouting. The area needs to be monitored for regrowth. An alternative is to cut the stems just before flowering. The plant should not reflower, but instead die at the end of the growing season. Cut flowering stalks should be removed form the natural area if the flowers have opened, because seeds can mature on the stem even after cutting. Do not cut flowering stalk before full bud stage because the plant will usually send up new flowering stocks.. Cutting the flowering stems may need to be repeated for several years to get control. Mowing can help eliminate seed production by cutting down the stalks however the plants may re -grow from the undamaged root crown. Bio-Control - None at this time. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Curtail 2-3 qt per acre Spring- at 6-10" growth stage to pre -bud and in fall rosette stage. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Telar XP 1 to 2.6 oz/acre Apply pre -emergent or early post -emergent. Add surfactant according to Manufacturers direction. Requires continuous agitation. Apply within 24 hours of mixing to avoid degradation. No grazing restrictions if less than 11/3 oz applied. Escort XP 'h-1 oz per acre Apply pre -emergent or early post -emergent. Add surfactant according to Manufacturers direction. No grazing restrictions if less than 1 2/3 oz applied. Cimarron Max Part A'hoz & 2 pints Part B per acre Apply pre -emergent or early post -emergent. Add surfactant according to Manufacturers direction. Water concerns. Dairy grazing restrictions — 7 days. t Teasel infestation at end of season Teasel rosette Rangeland -Pasture Recommendations Dalmatian Toadflax Identification and Management Dalmatian toadflax (Linaria genistifolia ssp. dalmatica) is a non-native deep-rooted perennial that spreads by seeds and aggressive, creeping, horizontal roots (rhizomes). Dalmatian toadflax can grow 3 to 4 feet in height. The leaves are heart shaped to lanceolate with the base clasping around the stem. Both leaves and stems are waxy with a whitish or bluish cast. Flowers grow at the bases of the upper leaves. The flowers are snapdragon -like in appearance. They are yellow, with an orange throat and a straight to slightly curved spur. Dalmatian toadflax emerges as early as mid -March and typically begins flowering in late May. A mature Dalmatian toadflax plant may produce up to 500,000 seeds per year. These tiny, brown -black, winged seeds may lay dormant in the soil for up to 10 years and are easily distributed with the wind. The roots of Dalmatian toadflax can go 4 to 10 feet into the soil column with lateral roots extending up to 10 feet from the parent plant. The key to controlling Dalmatian toadflax is to eliminate seed production while reducing the plant's nutrient reserves in its root system through persistent, lon;-term mana;ement. Dalmatian toadflax was introduced as an ornamental plant in the late 1800's. Dalmatian toadflax thrives in drier climates, is a strong competitor in coarse soils, disturbed soils and sparsely vegetated sites. Once established, even sites in excellent condition will do little to stop its spread. Combining control methods for Dalmatian toadflax is imperative. Early detection is the most important. Maintain healthy pastures and rangeland while continually monitoring your property for infestations. Address any new infestations as soon as possible to limit their establishment and spread. This will save time and money. On the backside of this sheet are Dalmatian toadflax management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Dalmatian toadflax. Suggested species include: 'Hycrest' crested wheatgrass, 'Luna' pubescent wheatgrass, 'Critana' thickspike wheatgrass, 'Bozoisky' Russian wildrye and 'Sodar' streambank wheatgrass. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to Dalmatian toadflax invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Hand -pulling this plant can be useful especially for small infestations in sand and with wetter soils. Pulling must be repeated several times a year for up to 10 to 15 years to be sure the root stock and seed bank is depleted. Combining spring pulling with fall use of herbicides will further enhance control of this weed. Mowing tends to have little impact on reducing an infestation. Most mowed infestations continue to spread and become more established. Biological - Dalmatian toadflax is typically unpalatable to livestock. Several different biological control agents are available. Contact the Colorado Department of Agriculture Insectary in Palisade to learn more. Please call 970-464-7916 or send an e-mail to insectary@ag.state.co.us for detailed information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Telar XP Escort XP 2 to 2.5 oz/acre 1.5 to 2 oz/acre Spring application is early flower stage or fall. Apply with a high volume spray; at least 24 gallons/acre. Ensure thorough plant coverage. Use an MSO surfactant at 1.5 pints/acre. Fall treatments may provide the most consistant control. Can safely be used under some trees. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Spring- early bud stage and /or fall rosette stage. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Plateau OR Panoramic 2SL 10 oz/acre or 0.3 oz/gal Late fall application prior to a hard freeze for optimum control. Add a methylated seed oil surfactant (MSO) at 1.5 pints/acre. 12 oz rate may cause injury to some cool season grasses. Can safely be used under trees. Rangeland -Pasture Recommendations Dames Rocket Identification and Management Dames rocket (Hesperis matronalis) is an escaped ornamental commonly found in gardens, woodlands, ditches, roadsides and pastures. It is a Colorado B List Noxious weed. A non-native, naturalized plant, it is a showy member of the Mustard family with purple, pink or white flowers clustered on terminal stalks. Dames rocket occurs as a biennial or short lived perennial persisting for only a few growing seasons. Dames rocket grows 1.5 feet to over 3 feet tall with a shallow root system and numerous flower stalks. Leaves of dames rocket are oblong, with toothed margins, alternately arranged and decrease in size as they ascend the stem. Lower leaves usually have leaf stems while the upper leaves attach directly to the stem. Both stems and leaves are covered with short hairs. Flowers consist of 4 petals and develop in stages allowing the plant to produce flowers and seeds at the same time. Flowering occurs early in May -July. Large quantities of seeds are siliques (pods) and are the sole method seeds will germinate the following remain dormant for several years. Dames rocket has become a very and that success can be attributed to its "wildflower" seed mixes. It is against packets which contain dames rocket or weeds. Often confused with garden phlox, petals and alternate leaves and phlox opposite leaves. It also resembles mustard - Money plant (Lunaria gardens and escapes as a weed. coin -like seed capsules and leaves that join the leaf stalk. the growing season from found in long narrow of reproduction. Most season but some may successful invasive weed wide distribution in the law to purchase seed other ornamental noxious dames rocket has four has five petals and another non-native annua) which is grown in Lunaria has large, round are indented where they On the backside of this sheet are dames rocket management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Dame's Rocket. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Control methods include pulling or cutting flowering stalks to prevent seed production. When pulling mature plants, stems often break off and the taproot can resprout if not removed. The site will need to be monitored for several years as available seeds will continue to germinate. Flower heads should be bagged for landfill disposal or dried and burned where permissible. Biological -There is no recommended biological control at this time. Herbicides - Selectively applying a broadleaf herbicide according to label recommendations may also be an effective means of control. Herbicides, if used, should be applied to the rosettes in the late fall or early spring to avoid damage to adjacent vegetation. The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup UltraMax 1.6% solution or 2 oz/gallon water Apply at early plant growth. Use caution when applying near grasses or other desirable vegetation. Roundup will possibly kill surrounding vegetation. No residual soil activity. Non -selective herbicide. Will kill all vegetation. Outlaw (2,4-D and Dicamba) 1 to 2 pints/acre or 0.5 oz — 1.0 oz/gallon water Spring- at emergence of seedlings. Continue until frost. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Grazing restrictions. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- at or just after full -bloom and/or fall. DO NOT apply when outside temperatures will exceed 85 degrees. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Garden Replacement Options Native garden replacement plants for dames rocket include sidebells penstemon (Penstemon secundiflorus), Palmer penstemon (Penstemon palmeri), bee balm (Monarda fistulosa), columbine (Aquilegia caerulea), narrowleaf coneflower (Echinacea pallida), and woods rose (Rosa woodsii). Cultivated garden replacement plants for dames rocket include bleeding hearts (Dicentra spp.), meadow rue (Thalictrum aquilegifolium), bloody cranesbill (Geranium sanguineum), coral bells (Heuchera spp.) garden phlox (Phlox paniculata), and hollyhocks (Alcea rosea). Rangeland -Pasture Recommendations Diffuse knapweed Identification and Management Diffuse knapweed (Centaurea diffusa) is a non-native biennial forb that reproduces solely by seed. A biennial is a plant that completes its lifecycle within two years. During the first year of growth, diffuse knapweed appears as a rosette in spring or fall. During the second year in mid to late spring - the stem bolts, flowers, sets seed, and the plant dies. Once the plant dries up, it breaks off at ground level and becomes a tumbleweed allowing seeds to be dispersed over long distances. A prolific seed producer, diffuse knapweed can produce up to 18,000 seeds per plant. Therefore, the key to managing this plant is to prevent seed production. Diffuse knapweed can grow 1 to 3 feet tall, and is diffusely branched above ground. This gives the plant a ball -shaped appearance and tumble -weed mobility when broken off. Leaves are small, and are reduced in size near the flowering heads. Flowers are mostly white, sometimes purple, urn -shaped, and are located on each branch tip. Bracts that enclose the flowerheads are divided like teeth of a comb, and are tipped with a definite slender spine. Upon drying, the bracts become rough, rendering them injurious to the touch. You can expect to see flowers Seed set August. Diffuse disturbed, It may also be roadsides, a tough rapidly disturbed from July through August. usually occurs by mid- knapweed tends to invade overgrazed areas. found on rangeland, riparian areas, and trails. It is competitor on dry sites and invades and dominates areas. Once established, diffuse knapweed outcompetes and reduces the quantity of desirable native species such as perennial grasses. As a result, biodiversity and land values are reduced, and soil erosion is increased. On the backside of this sheet are diffuse knapweed management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496, ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of diffuse knapweed. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Mowing the above -ground portion of the plant, before seed set may be an effective way to reduce seed production. Mowings should be followed by a fall herbicide treatment. Pulling can be effective on smaller infestations but must be done repeatedly. Biological - Biological control agents, such as the seed head weevil (Larinus minutus) and the gall -forming fly (Urophora affinis), are two of several species that are effective at controlling large infestations. When used together, these insects provide fair to good control. Expect to wait at least 3 to 5 years for the agents to establish significant populations and achieve optimum management results. Biocontrol agents can be obtained at no charge from the Colorado Department of Agriculture's Insectary. Please call 970-464-7916 or go to www.palisadeinsectary.com for more information. Diffuse knapweed is more likely to be grazed by sheep. The plants must be green and succulent and the only forage available in order for sheep to graze it. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments 2,4-D Amine 1 qt./acre or 1 oz/gal water Spring/fall rosette — before flowering stalk lengthens. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 2 qts./acre or 2.0 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Clarity 1 qt./acre or 0.75 oz/gal water Spring rosette — before flowering stalk lengthens and/or late fall treatment of rosettes. DO NOT apply near or under trees and/or shrubs or when outside temperatures will exceed 85 degrees. Milestone 5 to 7 oz/ acre Apply to plants in the spring rosette stage and/or to dormant plants in the fall. If the plants are in the bud stage add 2,4-D at 32 oz/acre. It is permissible to treat seasonally dry wetlands and transitional areas between upland and lowland sites. DO NOT rotate to a broadleaf crop within 1 year of application. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Transline 1/3 to 1 1/3 pints /acre Apply after the majority of basal leaves have emerged up to early bud stage or fall regrowth. A number of trees are tolerant to the herbicide. Roses and leguminous trees can occasionally be affected with root uptake. No grazing or haying restrictions. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal. The seedhead gall fly, Urophora quadrifasciata, is one of many biocontrol agents available for release to control diffuse knapweed. Additional Diffuse Knapweed Non -Chemical Control Information Diffuse knapweed response to treatments may be impacted by environmental conditions and the type of treatment utilized. Grazing control: Diffuse knapweed seed production can be reduced when grazed during the bolting stage for 10 days, wait 14 days then graze for an additional 10 days. Although grazing diffuse knapweed can reduce seed production, grazing can also cause diffuse knapweed to become a short-lived perennial. When grazing is stopped, populations often return to their former levels. Pulling or Digging: Pulling or digging requires a commitment of at least 12 years to ensure that removal of new seedlings and re -growth is done before they reestablish. Years one to three of a pulling or digging program will involve intensive removal. During year's four to six, there should be a decrease in diffuse knapweed numbers and the work will be noticeably easier. Pulling or digging of diffuse knapweed is best done in the spring during the rosette or early bud stage, before the flowers appear. Hopefully, the soils will be moist to allow for easier removal. The roots can extend a few feet into the soil. It is important to pull or dig up the entire taproot. Otherwise, the diffuse knapweed may re -grow. Keep in mind that some workers may suffer from allergic reactions while touching diffuse knapweed and inhaling pollen. Mowing: Diffuse knapweed is persistent. Mowing leaves part of the plant untouched. This part of the plant will still produce flowers. The plant will just be shorter than the mower height and will act more like a perennial plant than a biennial plant. In some cases, diffuse knapweed densities may increase after a single mowing. Burning or Flaming: Normal fires are typically not long enough or hot enough to destroy diffuse knapweed seeds. A monitored controlled burn can potentially help control diffuse knapweed if the fire has adequate intensity. It is not easy to find good fuel circumstances to carry a continuous fire that will cause significant injury to the diffuse knapweed without hurting the beneficial vegetation occurring in the infestation. Diffuse knapweed is not very flammable and most areas do not contain enough fuel necessary for the fire. This results in low temperature fires with patchy and irregular burns. Even if the surface area of the plant is killed, diffuse knapweed can often re -grow from its root reserves. A propane -fueled weed burner can be utilized to quickly burn the foliage of young diffuse knapweed rosettes. The flame sears the plant, raises the temperature of the cells, this causes the cells to rupture. The diffuse knapweed plant will then dehydrate and expire within a few hours. Flaming is done on green plants; not on dead foliage. Plants can be seared at any time before flowering. Flaming can be useful in clearing small areas. Eurasian Watermilfoil Identification and Management List B Eurasian watermilfoil, Myriophyllum spicatum L., is a perennial highly inva- sive aquatic species. Its stems are about 4 mm long, entirely submerged, and range in color from pinkish white, green to brown. Stems can be as long as 9 feet. Leaves are whorled around a round stem, usually four total, but can have three to five leaves per whorl. Leaves are oppo- site; when dissected in a cross-section they are at right angles. Leaves are pin- nately compound, divided into linear leaf segments or leaflets. Leaflets are usually paired but can range from alternate to opposite; there are usually 12 or more leaflet pairs per leaf. The leaf margins are smooth; under high magnifications leaf margins may be finely toothed. Turions are absent. The overall leaf architecture gives it a feather -like appearance. Long slender roots are able to grow at leaf nodes. The plant roots on soil at the bottom of water bodies, and can survive free-floating. Pinkish flowers are whorled around the round stem as a spike. Male flowers have four petals and four sepals which are entire; both male and female flowers are on the same plant. Flowers are minute and sepals are reduced. Flow- ers are emergent and upright. Fruits are 4 ribbed or grooved and ultimately break apart into four, one -seeded nutlets. Seeds are viable; seed longevity is unknown. Stems and leaves senesce in fall. It forms very dense mats on the upper portions of water. Roots, delicate stems, leaves and leaflets easily fragment; the smallest of fragments easily disperse, root at the nodes, and colonize new sites. Autofrag- mentation occurs after each flowering period, which occurs twice: mid -June and mid -July. Vegetative reproduction is the main means of spread. Native to Northern Europe and Asia, it is cold -water adapted and over - winters in Colorado. It also has the advantage of green -up and growth in the spring earlier than native aquatic species, allowing it to outcompete natives for sun and space. It colonizes a wide spectrum of aquatic conditions: depths 1-30 ft., pH 5.4 to 11, alkaline water, disturbed water, nutrient rich, abundant recreation activi- ties, fresh and brackish water, slow and fast currents, lentic and lotic systems. It looks similar to and can hybridize with its native sister species, Myriophyllum sibiricum, which is wide spread through- out Colorado, from 4870 to 11,590 feet in elevation. Hybrids have intermediate number of leaflets. M. spicatum can also be confused with another native aquatic, M. verticil- latum. 2015 Quarter Quad Survey Eurasian Watemrilftoil aura wares. l rTu srxr oars oarennun u«naan nry*mrrn ,WM r-aram • Eurasian watermilfoil is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be eradicated; some populations may be contained or suppressed depending on state regula- tions. For state regulations described for each county, refer to the most recent Rule, or visit www.colorado. gov/ag/coweedcontacts for details. Myriophyllum sibiricum _ O5 Ang, Flora Nordica o lake George Key ID Points 1. 12 or more leaflet pairs are present. 2. Turions are absent. 3. Male flower bracts are entire. 4. Delicate stems, leaves and leaflets. r List B Integrated Weed Management Recommendations Effective integrated management means using a variety of eradication methods along with restoration, prevention of dispersal, and monitoring. Maintain healthy native waters. Prevent vegetative fragmentation and dispersal, such as on boats, swimming attire, equipment, etc. Infested water bodies can become very dangerous to humans, clog water infrastructure and equipment. Use methods appropriate for the site and with a full understanding of the species' biology. ,, '" A CULTURAL CONTROL METHODS Cultural methods, such as seeding, revegetation, fertilization, and irrigation are not applicable to aquatic environments such as lakes, rivers and streams. There are no known cultural control methods that would be effective against Eurasian watermilfoil, especially since this species hybridizes with native watermilfoil species. slieJl'Aehrhofi.'UniversiiY ofR \ Euhrychiopsis Iecot o BIOLOGICAL CONTROL METHODS There are known biological control agents for Eurasian watermilfoil that were N• - considered elsewhere in the USA, but issues preclude their use. For instance, grass carp, ' '''" ` -'' Ctenopharyngodon idella, is not host specific and feeds on native watermilfoils. The .�� ;�:' - fungus, Mycoleptodiscus terrestris, is difficult to obtain. A weevil, Euhrychiopsis lecotie, -rte, ..; `' is a native species that is not host specific and feeds on native watermilfoils. There are no known host specific biological control agents available or authorized in Colorado. For more information about biological control agents, visit the Colorado Department of Agriculture's Palisade Insectary website at at www.colorado.gov/ag/biocontrol. j = I.-) K3 .0 -A State Department of Ecology �IfI � c•, Okanagan iI . -... ,- � �� BasinWaterBoard MECHANICAL CONTROL METHODS Use of mechanical methods such as cutting, rotovation, hand pulling, raking, harvesting come with a high risk of spreading infestations since Eurasian watermilfoil fragments and roots easily. Such methods should be used only in closed systems, such as ponds, with no outlet, or in limited situations. If this method is used, all plant fragments need to be and dried. Equipment needs to be thoroughly cleaned and dried before its used in another water body. Physical water level manipulation that allow roots to freeze or plants to dry out for several weeks can be effective. Burn, compost or bag and throw away plants. a VI >sremoved S 2O- , CHEMICAL The following are recommendations for herbicides that can be applied to aquatic systems. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Always read, understand, and follow the label directions. The herbicide label is the LAW! L. 0 QANOTE: �j� O HERBICIDE RATE APPLICATION TIMING 2-4-D (Aqua-Kleen, Navigate, DMA 4 IVM; Use only aquatic approved products) Determined by herbicide concentration within the water column. Actively growing plants or manufactory specified recommendations. Fluridone (Sonar or Avast) Determined by herbicide concentration within the water column. Actively growing plants or manufactory specified recommendations. Rev. 11/16 Imazamox (Clearcast) Determined by herbicide concentration within the water column. Actively growing plants or manufactory specified recommendations. Triclopyr (Renovate 3) Determined by herbicide concentration within the water column. Actively growing plants or manufactory specified recommendations. Colorado Department of Agriculture - Conservation Services r c D A 305 Interlocken Parkway T �,. Broomfield, CO 80021 CO 4 (303) 869-903o r University do w '" www.colorado.gov/ag/weeds Rangeland -Pasture Recommendations Field Bindweed Identification and Management Field bindweed (Convolvulus arvensis) is a non-native deep-rooted perennial that reproduces from seed and creeping, horizontal roots (rhizomes). Field bindweed stems are prostrate (grows low to the ground) and twining, and grow up to 6 feet long. Leaves are distinguishable by their arrowhead shape. The flowers are bell or trumpet -shaped, white to pink in color, and are about 1 inch long. Field bindweed seeds can remain viable in the soil for up to 40 years. Field bindweed emerges from its root system in the spring. Flowering occurs from June to September and until the first fall frost. The number of seeds produced per plant ranges from 25 to 300 and seed production is variable depending on environmental conditions. Field bindweed is an extremely difficult noxious weed to control because, in part, of its root that may go 20 feet deep into the soil, and which repeatedly gives rise to numerous long rhizomes. Field bindweed is a problem throughout Colorado. It is one of the most competitive perennial weeds. It is widespread in cultivated areas, pastures, lawns, gardens, roadsides, and waste areas from 4,000 to 8,000 feet in elevation. To successfully manage field bindweed, containment and persistence in controlling existing stands are necessary to exhaust the root system and deplete the soil seed bank. This weed needs to be continually stressed, forcing it to exhaust root nutrient stores and eventually die. Of all control methods, prevention is most important. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. A healthy cover of desirable perennial plants will assist in discouraging field bindweed establishment. On the backside of this sheet are field bindweed management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Department, Weed Division at (970) 304-6496 ext 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of field bindweed. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to field bindweed invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Cutting, mowing, or pulling has a negligible effect unless the plants are cut below the surface in the early seedling stage. Well -established populations have a large seed bank in the soil that can remain viable for over 40 years. Biological - The bindweed gall mite, Aceria mahlerbae, has proven to be effective in reducing field bindweed infestations. Biocontrol agents can be obtained at no charge from the Colorado Department of Agriculture's Insectary. Please call 970- 464-7916 or go to www.palisadeinsectary.com for more information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Optimum results occur when the plants have recently received moisture and are actively growing. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- at or just after full -bloom and/or fall. DO NOT apply when outside temperatures will exceed 85 degrees. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. *Tordon 22K + 2,4-D Amine *this is a Restricted Use Pesticide* 1 qt./acre for each product or loz/gal water for each product Spring- at or just after full -bloom and/or fall. DO NOT apply when outside temperatures will exceed 85 degrees. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. *Roundup Ultra *Non -selective herbicide. Will kill all vegetation.* 4 —5 qts./acre or 4 —5 oz/gal water Apply at full -bloom and/or fall. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Use caution when applying near grasses or other desirable vegetation. Roundup will possibly kill surrounding vegetation. F:' Field bindweed-- infesti ig a baregrotin area `. Hairy Willow -Herb Identification and Management Hairy willow -herb is an Eurasian relative of our native fireweed and other willow -herbs that can invade and overwhelm moist areas and shorelines. It invades the same types of areas as purple loosestrife and can reduce wetland and shoreline habitat in much the same way. Although this plant was originally used as an ornamental, sometimes as an alternative to purple loosestrife, it is now illegal to buy or sell hairy willow -herb. Hairy willow -herb is a semi -aquatic perennial herb covered with soft hairs. It grows up to 6 feet tall. The stems are erect and branched. Flowering occurs June through August with showy pink -purple flowers that have white centers and four notched petals. The leaves are opposite, lance -shaped with toothed edges, and attach directly on the stem. Long, narrow seed pods split open to release numerous seeds with long white hairs. Each mature plant can produce up to 70,000 seeds. Seeds require a soil pH for 5.5 or higher for germination and are thought to remain viable for several years in the soil. Hairy willow -herb also spreads vegetatively by thick rhizomes (underground stems). It is tolerant of flooded soils. The rhizomes can grow submerged in water or water - saturated soils but can also spread into meadows and other upland areas. Found in low pastures, ditches, wetlands, stream banks, fields and meadows. It is often found growing in the same habitat as and can co -exist with purple loosestrife. Hairy willow -herb can out -grow purple loosestrife in the fall where most of its spread is seen, although the reverse is true in the spring. It prefers sunny, open spaces but is somewhat shade -tolerant once established. Its aggressive growth crowds out native wetland plants. Dense stands can impede water flow in waterways and wetlands. Infestations can also increase bank erosion while degrading wildlife habitat. On the backside of this sheet are hairy willow -herb management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 400- 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural/ Preventive - Prevent the establishment of new infestations by minimizing disturbance and seed dispersal. Mechanical - Hand removal of isolated individuals can be effective on a small scale. Handpulling should be conducted prior to seed set. It is important to remove the entire rootstalk of the plant to avoid regrowth from root fragments. Biological - There is no recommended biological control at this time. Herbicides - Harry Willow -Herb is found in very wet soils, so great care should be used when using herbicides so as to not harm other water plants. For early - season control of seedling and regrowth plants less than 2 feet tall, use of an aquatic -labeled herbicide is effective. Look for seedlings in late May or early June where adult plants have grown. The herbicides Clearcast, Renovate 3, and Milestone are effective on hairy willow -herb and are specific to broadleaved plants. Rodeo, Arsenal or Habitat are effective on mature plants at the pre - flowering stage. Use with caution, these products are non -selective herbicides and will kill all other vegetation that is sprayed. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application TiminWComments Clearcast (Imazamox) 64 to 128 oz./acre No restrictions on water usage for swimming, fishing, domestic use, ag sprays or livestock. Targets cattails as well. Apply at bud to mid -flower stage; typical treatment window is June/July. Add aquatic labeled MSO at 32 oz/100 gal. Rodeo (Glyphosate) 5% solution No restrictions on water usage for irrigation, recreation, or domestic purposes. Do not spray directly into open water. Renovate 3 (Triclopyr) 6 to 8 quarts/acre (192 oz -256 oz/acre) Or 5 to 7.6 oz/4 gallons Can be used in wetlands. Avoid spraying into open water. No restrictions on water usage for swimming, fishing and livestock. Apply at bud to mid -flower stage. Follow-up treatments will need to be made. Use an aquatic labeled non-ionic surfactant at 32 oz/100 gal. Arsenal or Habitat (Imazapyr) 16 to 48 oz/acre No restrictions on water usage for swimming, fishing and livestock. Minimize amount of over spray that enters the water. Apply at bud to mid -flower stage. Use an aquatic labeled non- ionic or MSO surfactant at 32 oz/100 gal. Caution: typically, a bare -ground product. Milestone (Aminopyralid) 7 oz/acre Or up to 14 oz if treating less than an acre Can be used in wetlands when they are dry, such as the fall. Use an aquatic labeled non-ionic or MSO surfactant at 32 oz/100 gal. Can also add 16 to 32 oz of 2,4-D or 32 to 64 oz of Garlon 3A/Renovate 3 for increased control. Rangeland -Pasture Recommendations Hoary Cress Identification and Management Hoary Cress (Cardaria draba) is a non-native perennial that spreads by seeds and aggressive, creeping, roots that vigorously produce new plants. Depending on conditions, hoary cress grows to a height of 1/2 to 2 feet tall. The first leaves emerge from a crown and are dull gray -green, oblong and often have a slightly wavy margin. Subsequent leaves are alternate, have short fine hairs and an irregularly toothed margin. Only the lower leaves have stems, others are stalk -less and clasp the plant stem with two ear -like lobes. Flowers are fragrant, numerous, small, white with 4 petals and grow in compact clusters. Hoary cress is a member of the Mustard family. In the fall seeds germinate and rosettes become established. It frequently flowers in April and May and again in the fall during optimum conditions. Seed production begins about one month later. Hoary cress produces up to 4800 seeds per plant. Seed viability is up to 3 years. However, the primary means of spread is the vertical and horizontal root system. Root fragments are capable of forming new plants. In one year, a single plant, without competition, can spread vegetatively to cover an area 12 feet in diameter and can produce 450 shoots. Hoary cress is also known as whitetop Rosette Hoary cress can be found in disturbed open sites, roadsides, ditches, riparian areas, grain and vegetable fields. It does especially well in irrigated crops such as alfalfa and sugar beets. Hoary cress grows well in most soil conditions, including alkaline soils. However, it does not tolerate shade. Hoary cress displaces native vegetation for wildlife and livestock forage. It also contains glucosinolates that are toxic to cattle. Prevention is the most cost reducing and time effective weed management strategy. Infrequent cultivation can actually facilitate the spread by dispersing root fragments. Consistent monitoring of your fields is an essential first step. On the backside of this sheet are hoary cress management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 400-3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of hoary cress. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to hoary cress invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Repeated tillage (every 10 to 14 days) can destroy colonies in 2 to 4 years. Combining mowing with herbicides will further enhance control of this weed. Apply herbicides in spring and/or fall, and then mow during the summer months. Mowing alone is not an effective control option. Biological No known biological control agents available at this time. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Escort XP lto 2 oz/acre or 1.3 ams to 3 gallons of water Apply from bud to early bloom stage or at fall rosette. Add a non -acidifying non-ionic or MSO surfactant @ 0.32oz/gal water or 1 t/100 al water. Telar XP 0.5 to 1 oz/acre or % of a am to 3 allons water Apply at prebloom to bloom or at fall rosette stage. Add a non - acidifying non-ionic or MSO surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Plateau 8 oz./acre or 0.25 oz/gal water Spring apply to rosette stage or at flowering or at fall rosette. Add a methylated seed oil surfactant (MSO) @ 0.32 oz/gal water or 1 qt/100 gal water. Rangeland -Pasture Recommendations Houndstongue Identification and Management Houndstongue (Cynaglossum officinale) is a non-native biennial or short- lived perennial that was introduced from Eurasia as a contaminant in cereal grain seed. Houndstongue is a very invasive plant that reproduces by seed only. The mature plant can grow to 1 to 4 feet tall. The first season it is a soft, hairy, low -growing rosette with leaves from 2 to 12 inches long. The basal leaves are lance -shaped, pointed and much tapered at the stem end. The name of the plant is derived from the size and shape of the rosette leaves which resemble a dog's tongue. The rosette bolts the second growth year producing one to several stout, erect stems with rough, hairy alternate leaves, becoming smaller and almost stem -less to clasping at the top. Flowers are small terminal clusters in the leaf axils, are dull reddish -purple with 5 fused petals on hairy coarse stems. Seeds are in 4 prickly nutlets that break apart. Each egg -shaped seed is covered by a hard multi -barbed husk, which clings to everything. Houndstongue seeds germinate from February to May and produce rosettes in the first year. During the second year it flowers and produces 600 to 2000 seeds per plant. Houndstongue can be a facultative biennial meaning the production of seeds can be postponed for one to several years until optimal conditions exist. It has the ability to survive a variety of soil conditions, hot, dry conditions and cold winter weather. It infests pastures, hay fields and disturbed sites. Houndstongue prospers in wetter grassland and is shade tolerant. It displaces native vegetation by capturing soil resources with its deep woody taproot. Houndstongue leaves contain pyrrolizidine which causes liver cells to stop reproducing. The green leaves are unpalatable with a distinct unpleasant odor. Consumption of houndstongue by grazing livestock is almost always lethal. Some animals may survive up to 6 months after ingesting the lethal amount. Horses are especially susceptible when confined to a small area that lacks desirable forage. Houndstongue may cause dermatitis in humans. Controlling houndstongue requires a multi -action approach including: limitation of seed dispersal, control current infestations, reduce soil disturbances, early detection, establishment of competitive grasses and use of proper grazing management. Below are houndstongue management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Limit access and recreation in areas of heavy infestations to prevent the spread of houndstongue seeds. Be aware of possible contamination in hay from infested areas. Plant competitive grasses at the proper time to ensure competition. Contact your local CSU Extension office or Natural Resources Conservation office for seed mix recommendations Mechanical - Digging, pulling and cutting is typically ineffective except for very small infestations. The rosettes must be severed below the crown of the taproot. Clipping or mowing of flowering stems will limit seed production but it is essential that all plant material and flowers be bagged and properly disposed of in a landfill. Houndstongue will not survive repeated tillage of young plants. Biological - There are two or three promising insect agents currently being evaluated. A flea beetle, Longitarsus quadriguttatus is host specific with a strong preference for houndstongue. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Apply in early spring to second year growth before bloom —to actively growing plants. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Escort 1 oz./acre or 1.3 grams to 3 gallons of water Spring- at 6-10" growth stage to pre -bud and in fall rosette stage. Add amethylated seed oil surfactant ( MSO) @ 0.32 oz/gal water or 1 qt/100 gal water. Plateau 8 oz/acre or 0.4 oz/gal water Apply to rosettes in the spring, summer or fall of 1St year. Add a methylated seed oil surfactant (MSO) @ 0.32oz/gal water or 1 qt/100 gal water. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Spring- summer or fall to rosette stage. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Jointed Goatgrass Identification and Management List B C� WA_State Noxius Weed ContraL&oard Jointed goatgrass, Aegilops cylindrica Host, is a winter annual, which greens up in late summer or fall and remains ac- tive through winter. The plants can grow as a single or multiple stems or tillers. Mature plants can reach 15 to 30 inches tall. Leaves are simple and alternate. Leaf blades are between 1/8 to 1/4 of an inch wide. Leaf blades have stiff short hairs on the leaf margins that are perpendicular to the blade and evenly spaced. Hairs can also be found on the auricles, ligules and leaf sheaths; these hairs are evenly spaced too. The cylindrical inflorescence is uniquely arranged into spikelets, which appear as zigzag joints. Each spikelet is cylindrically shaped and fit into the contour of the rachis. Spikelets are about 1/2 inch long. On top of each spikelet, the glumes will have long awns. Spikelets turn hard, change color from orange to red to purple, and shatter at the joint margins when mature. Each spikelet con - 2015 Quarter Quad Survey tains 1 to 3 viable seeds which develop quickly after pollination. Seeds germinate in fall and throughout cool months. Seeds remain viable for up to nine years. Often, spikelets will still be attached to the roots when plants are seedlings. In the seedling stage, Jointed goatgrass looks similar to winter wheat. The hairs on the jointed goatgrass will be the key diagnostic fea- ture; winter wheat does not have these hairs. Jointed goatgrass looks very similar to winter wheat in the younger stages of growth and hybridizes with winter wheat. The presence of the hairs on the leaf margin, sheath, ligules and auricles is key to identifying it apart from winter wheat. Mature hybrid spikelets closely resemble the zigzag structure of jointed goatgrass. A 2000 study found that hybrids do have a limited ability to produce viable seeds that can germinate and produce plants (Synder et al. 2006). The seeds of both species are also similar in terms of size and weight and so its assumed that hy- brid seeds would be similar. It has a lon- ger flowering season than winter wheat. Jointed goatgrass is native to the tem- perate regions of central Asia, Russia and the Mediterranean. Long growing seasons, precipitation and cool weather favor jointed goatgrass. It invades a wide variety of sites, including grasslands, wheat fields, fence rows, waste places, roadsides, alfalfa fields, and pastures. Winter wheat fields infested with jointed goatgrass cause long-term economic loss and wheat certification issues for the agricultural Joirrted Goatgrass An Y JepS d,rea 2d l S [Iartenal Feld Srvey bola n0rdnrtn., Cekredo n s, -:*n vir, u, ax.a.�,e e..we.+w�rcrh'tietwrw+e� ce.�tb ceneeeemsei eikp:ram industry for years. Jointed goatgrass is desig- nated as a "List B" species on the Colorado Noxious Weed Act. It is required to be eradicated; some popula- tions may be contained or suppressed depending on state regulations. For state regulations described for each county, refer to the most recent Rule, or visit www.colorado.gov/ag/co- weedcontacts for details. lir 4 Steve Dewey, UT State Univeristy ©Steve Dewey, UT State University © Alejandro Perez Jones et al. 2010, Weed Science Jointed goatgrass (left), hybrid (middle), winter wheat (right) Key ID Points 1. Stiff short hairs evenly spaced on the margins of leaf blades. 2. Evenly spaced hairs are on auricles, leaf sheath and ligules. 3. Spikelets fit in a zig-zag pattern in a cylindrical shape. List B Integrated Weed Management Recommendations Effective integrated management means using a variety of eradication methods that also includes restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes and restore degraded sites. Avoid soil disturbance. As with most annuals, prevent seed production. Prevent seed from dispersing, such as on contaminated equipment. Rest sites until they are effectively restored. Control jointed goatgrass before March for the most effective results. Implementation and choice of method must consider the plant's life cycle. CULTURAL CONTROL METHODS Rotate crops for three seasons or longer before winter wheat is recultivated. Alter- nate crop selection is important: winter wheat/sunflower/fallow and winter wheat/ corn/fallow decrease jointed goatgrass seed density. Early spring crops may not be .-- effective as rotation crops. Band nitrogen fertilizer with desired species' seeds and f�-` irrigate; avoid broad nitrogen fertilizer applications. Select cultivars that result in R4 early fall or spring growth, taller plants, and high till capacity to outcompete jointed goatgrass. Increase seed rates and reduce row space of crops and seeded sites. Iso- late and harvest jointed goatgrass patches separately from other crops. ! l ,} y/ 1 1 BIOLOGICAL CONTROL METHODS The long awns and hard seeds make jointed goatgrass unpalatable to domestic livestock and can cause injury and may even be fatal. Grazing before flower production is believed to stimulate growth and plant density; properly timed grazing may increase the vigor of desired plants. Avoid high intensity -short duration and heavy grazing. There are no known biological control agents effective against jointed goatgrass g g g 1 g g authorized in Colorado. For more information about biological control agents, visit the Colorado Department of Agriculture's Palisade Insectary website at www.colorado.gov/ o O O-,- o O VI O = tz L.) .L C J, l> V1 ag/biocontrol. oSteve Dewey, UTState University ..1—".. ri =;� & �'3:: v. _: - „ .<-.z;„, ,. `. • • .r._ : ', .- , �,•1-,,,_ :''' YBrumfie,d -' MECHANICAL CONTROL METHODS Mowing and weed whacking should be done before flower production; these methods can induce more tiller and flower production and disperse seeds. Ensure that all methods do not cause spikelets to shatter and disperse seeds. Tilling may bring buried seeds back to the soil surface and could increase germination. Till "in the fall when primary dormancy is lost, but before secondary dormancy is imposed" (Fandrich and Mallory -Smith 2006). Mechanical methods have limited success. Prescribed fire can kill seeds if there is enough vegetation (> 7,000 Ibs/acre) on the soil surface to carry fire and increase heat generated. Consecutive fire applications will be needed. llJ `J n (-• OC 7 1 9— 0 • CHEMICAL CONTROL METHODS NOTE: The following are recommendations for herbicides that can be applied to pastures and rangeland. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Always read, understand, and follow the label directions. The herbicide label is the LAW! OHERBICIDE Rev. 11/16 RATE APPLICATION TIMING Glyphosate* (Roundup, and others) 16 oz./acre + 0.25% v/v non-ionic surfactant Apply before first spikelets begin to emerge from the boot; usually weeds are < 6" in height. (Late winter to early spring). *These herbicide products are non - selective and will kill any vegetation contacted. Imazapic + Glyphosate* (Journey) 6 oz./acre + 0.25% v/v non-ionic surfactant Apply before first spikelets begin to emerge from the boot; usually weeds are < 6" in height. (Late winter to early spring). Note: *These herbicide products are non - selective and will kill any vegetation contacted. Imazapic (Plateau, Panoramic) 6 oz./acre + 1% v/v methylated seed oil Apply pre-emergance in late summer or fall, or early postemergence in late winter before tiller. Aminocyclopyrachlor plus chlorsulfuron (Perspective)* 4.75-8 oz. product/acre + 0.25% v/v non-ionic surfactant Apply from the seedling to the bolting stage. IMPORTANT: Applications greater than 5.5 oz. product/acre exceeds the threshold for selectivity. DO NOT treat in the root zone of desirable trees and shrubs. Not for use on grazed or feed forage. *Product not permitted for use in the San Luis Valley. Colorado Department of Agriculture - Conservation Services C D A 305 Interlocken Parkway Broomfield, CO 80021 CO se'v (303) 869-903o r University do w www.colorado.gov/ag/weeds Knotweeds Identification and Management I apanese knotweed (Fallopia ja- ponica), giant knotweed (Fallopia sachalinensis), and their hybrid, Bo- hemian knotweed (Fallopia x bohe- mica) are bright green, bamboo -like perennial plants that grow 5-16 feet tall and spread through lateral root systems (rhizomes). Stems are hollow between nodes, and often reddish - brown and swollen at the nodes. The base of the stem above each joint is surrounded by a membranous sheath. Leaves are alternate and large. Japanese knotweed leaves are broadly ovate or spade -shaped with low, bump -like scabers on the under- side instead of hairs. Giant knotweed leaves are heart -shaped with long hairs underneath, and Bohemian plants typically have both leaf forms. The small, showy, greenish -white flowers develop on branched clus- ters and are present in late summer. Seeds are three -sided, black and shiny, and they develop in a papery - winged fruit. Japanese and giant knotweed are native to Asia and were introduced to the U.S. as ornamentals and for erosion control and landscape screening. All three species spread and resprout from roots or root fragments. They can be found grow- ing near water sources, in disturbed areas, and along rights -of -way. All three species can tolerate many environmental conditions such as full shade, high temperatures, salin- ity, and drought. Infestations can clog small waterways and displace native vegetation, increasing bank erosion and degrading wildlife habi- tat. Like other species in the genus Polygonum, the soil seed reserve is likely long-lived, and site monitoring should be carried out for at least ten years after the last flowering adult plants have been eliminated. The key to effective control of Japa- nese, giant, and Bohemian knotweed is to prevent establishment through proper land management. Maintain healthy riparian cooridors, wetlands and rights -of -way, and continually monitor your property for new infes- tations. The following page provides management recommendations. Knolweed in Colorado, 2018 (.Japanese, Bohemian, and Giant) PiCARMAk All three knotweeds are designated as "List A" species in the Colorado Noxious Weed Act. They are required to be eradi- cated wherever found in the state. For more information please visit: www.colorado.gov/ag/ weeds or call the State Weed Coordinator at the Colorado Department of Agriculture, Conserva- tion Services Division at 303-869-9030. Extension Key ID Points 1. Stems are hollow 2. Stem nodes are raised with a membranous sheath 3. Leaves are spade- to heart -shaped 4. Flowers are showy and form clusters in late summer fl O Z. cal a 0 VU 00 Cl � nn a DJ ?lIL-j v, r4 a n lo � b N* OO x pi) O i= co b List A Integrated Weed Management Recommendations E UV Preventing the spread of this plant in Colorado is crucial since it is known to exist only in a few locations. Monitoring your land for infestations, especially lands near water and downstream of known sites, can significantly aid in detecting the species early and eradicating it quickly. Herbicide timing is important in controlling this species. Follow timing recommendations closely. a -- 1 --'� Cultural be Heavy blackplastic 0o ECULTURAL CO O 0a Q V EBiocontrol CU �Q S O rE� -O uV X - _... .�s.---74,.. 0 control may possible with persistence. should entirely cover the infestation but be loose enough toallow growth underneath. Some plants will likely survive, so followup treatment and monitoring will be necessary. ; ' fr- ..;, _ ' a4�''= + �' . __ BIOLOGICAL agents are not included in the prescribed managementplans for List A species by the State; eradication is the management objective. No biocontrol agents for the knotweeds are available. Formore information on the use of biocontrol agents in Colorado, please contact the Palisade Insectary at 970-464-7916. S ', CiM , t ik i , , � 7� �.1 f !, f.. r r ,f. u '' � ,s "'!• .: 14 !� ', -,r-". '`' '' MECHANICAL NOT recommended as an eradication treatment due to theextensive and complex lateral root system. If plants are removedmechanically, all plant parts should be removed and then burnt or carefully baggedand disposed of in the landfill. Burning the plant as a is ineffective Qu=zi Li O O vi ' (: v1 U u CO Es V (�� Q �uU LL 12 CS -j ._. , �-� controlmethod and not recommended. CHEMICAL The following are recommendations for herbicides that can be applied along riparian and wetland areas to treat knotweeds. Rates are approximate and based on smaller infestation, spot -spraying techniques. Please read label for exact rates. Always read, understand, and follow the label directions. The herbicide label is the LAW! i , V_ = 0 O '--• HERBICIDE RATE APPLICATION TIMING Glyphosate (Rodeo*, AquaMaster*, are all safe for aquatic use) 2.5% to 3% solution (3.2 to 3.8 oz/gal water) + 0.32 oz/gal water non-ionic surfactant. OR 5 to 6 ml undiluted herbicide per individual stem for injec- tions Apply evenly over leaf surface "to wet," not so dripping occurs. Treat when plants are actively growing, pre -bud to flowering stage: June to July (at least half of foliage should still be green).** Use a calibrated injection gun to inject just below the third node from July to September. (gun can be bought online) (total treat - ment must not exceed 8 quarts per acre or approximately 1,000- 1,500 stems per acre for suggested rates). Q.Q � O QAquaNeat* O Q LL Triclopyr (Garton 3A for aquatic sites) OR Imazapyr*** (Habitat* OR Arsenal* for aquatic use) 1% solution (1.3 oz/gal water) + 0.32 oz/gat water non-ionic surfactant. Apply evenly over leaf surface "to wet," not so dripping occurs. Treat when plants are actively growing, pre -bud to flowering stage: June to July.** Injection method is not allowed for these herbicides. *All starred herbicide products are nonselective and will kill any vegetation contacted. **If leaves are above one's head, plants can be bent down to allow better foliar spray coverage. ***Imazapyr is NOT recommended for use in ornamental or turf settings. Colorado Department of Agriculture - Conservation Services C D A 305 Intertocken Parkway ' Broomfield, CO 80021 CO 11 • (303) 869-903o r University do Rev. 3/19 www.cotorado.gov/ag/weeds Rangeland -Pasture Recommendations Leafy spurge Identification and Management Leafy spurge (Euphorbia esula) is a non-native deep-rooted perennial that spreads by seeds and extensive, creeping roots. The roots can extend as deep as 30 feet into the soil and are extremely wide -spreading. The roots are brown and contain numerous pink buds that generally produce new shoots or roots. Leafy spurge can grow from 1 to 3 feet in height. The stems are smooth, pale green, and thickly clustered. Leaves are alternate, narrow, linear, and 1 to 4 inches long. The flowers are very small and yellowish -green. They are enclosed by very visible yellowish -green, heart -shaped bracts. The entire plant contains white, milky sap that exudes readily upon stem or leaf breakage. This sap can be damaging to eyes and sensitive skin. Leafy spurge is one of the earliest plants to emerge in the spring. Flower clusters develop 1 to 2 weeks after stem emergence which is from mid -April to late May. One large leafy spurge plant can produce up 130,000 seeds. Three - sided seed capsules explode when ripe and project the seeds up to 15 feet away from the parent plant. Leafy spurge has adapted to a wide variety of habitats in the state and is very competitive with other plant species. Where it becomes established in rangeland, pasture, and riparian sites, it crowds out all other vegetation. The competitive, rapidly growing, and extensive root system makes leafy spurge very difficult to manage. Develop a management plan that uses several control methods that are compatible with your site. The most effective method of control for leafy spurge is to prevent its establishment through proper land management. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. New infestations are much more easily controlled than established infestations. On the backside of this sheet are leafy spurge management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Seeding and maintaining aggressive grasses will help in competing with leafy spurge and slow its spread. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Proper grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to leafy spurge invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Mowing will reduce seed production if repeated every 2 to 4 weeks during the growing season, but will provide little long-term control. Biological - Both sheep and goats have been found to be effective grazers of leafy spurge. Grazing sheep can commence after spring regrowth reaches 2 to 6 inches tall, but before the flowering bract stage. Goats can graze spurge at any time. Do not overgraze. If leafy spurge has set seed, quarantine animals in a corral for 7 days before releasing them into a non -infested pasture. There are a variety of insects available for release on leafy spurge infestations. The flea beetles, Apthona nigriscutis, A. lacertosa, and A. cyparissiae, have been found to be effective on large infestations and when used in combination with grazing and/or herbicides. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- following appearance of true flowers and/or fall regrowth. Must treat 2x/year for 1-4 years. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Plateau 12 oz./acre or 0.4 oz/gal water Fall only treatment prior to hard freeze. Add a methylated seed oil surfactant (MSO) @ 0.32 oz/gal water or 1 qt/100 gal water. 2,4-D Amine 2-3 qts/acre or 2-3 oz/gal water Early spring and fall. Prevents seed formation only. Retreatment will be necessary. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Spring- following appearance of true flowers and/or fall regrowth. Must repeat annually for 3-4 years. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Sheep gruzin afy spurge. The llama protects the sheep from predators. Rangeland -Pasture Recommendations Common Mullein and Moth Mullein Identification and Management Common Mullein (Verbascum thapsus) and Moth Mullein (Verbascum blattaria) are non-native escaped ornamental biennials that have spread throughout the United States. These plants develop fibrous roots and a deep taproot. Both form a basal rosette in the first growth year and midway through the second season the plants "bolt" producing flower stalks. Common Mullein has rosette leaves which can be over a foot long. They have smooth edges with dense silvery hairs on both sides giving the leaves a woolly appearance. The flowering stalk is usually solitary and can be over 8 feet tall. Occasionally a few upright branches occur near the top. Leaves on the flowering stem are alternate and become smaller and more pointed close to the top of the plant. The flowers are sulfur -yellow, 5 lobed and united at the base. The stalk is densely packed with flowers attached directly to the stalk. A prolific seed producer, common mullein seeds can remain viable in the soil for 100 years. Common mullein is a List C noxious weed and is frequently found in pastures, roadsides and dry disturbed sites. Moth Mullein Rosette Lacking Hair Densely Haired Common Mullein Rosette Common Mullein Flower Moth Mullein Flower — Notice The Stem Moth Mullein leaves are dark green, are oblong tapering to a point with toothed edges, have prominent veins and lack the hairy covering. It has a shorter flowering stalk (2 to 5 feet) and supports flowers ranging from yellow to white with a purplish center. The flowers are each on a short stem and arranged in loose clusters at the top of the stalk. Moth mullein also is a prolific seed producer and the seeds remain viable for 90 years. It is a B list noxious weed and is presumably eradicated in Weld County. Its preferred habitat is similar to common mullein Below are management recommendations for both common and moth mullein. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of mullein. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Mowing or chopping is most effective when mullein plants are at the early flower stage but will have to be repeated throughout the season. Grubbing or digging the plants below the root crown level is effective in the rosette stage. Biological -There is no recommended Biological control at this time. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow the herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/ Comments Milestone 7 oz./acre or 1 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Tordon 22K + 2,4 D 1 — 1.5 pints/acre + 1 qt/acre Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Do not apply near or under trees or near water. Telar XP 1 — 3 oz/acre Apply from rosette to early bolt stage of growth. Add non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Roundup 2-3 qts/acre Or 2-3 oz/gal water Roundup is a non -selective herbicide — do not let spray drift to non -target species. Apply when plants are actively growing. Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Common Mullein Plant Moth Mullein Plant Rangeland -Pasture Recommendations Musk thistle Identification and Management Musk thistle (Carduus nutans) is a non-native biennial forb that reproduces solely by seed. A biennial is a plant that completes its lifecycle within two years. During the first year of growth, musk thistle appears as a rosette in spring or fall. During the second year in mid to late spring - the stem bolts, flowers, sets seed, and the plant dies. A prolific seed producer, musk thistle can produce up to 20,000 seeds per plant. Therefore, the key to managing this plant is to prevent seed production. Musk thistle can grow up to 6 feet tall. The leaves are spiny, waxy, and dark green in color with a light green midrib. The flowers are purple, large in size (1.5 to 3 inches in diameter), nodding, and terminal. The flowers are surrounded by numerous, lance -shaped, spine -tipped bracts. You can expect to see flowers from late May and June. Seed set usually occurs in June or July. Musk thistle tends to invade disturbed, overgrazed areas. Once a pasture is infested, the livestock carrying capacity for that area is significantly decreased. Musk thistle may also occur on rangeland, roadsides, ditches, riparian areas, and trails. On the backside of this sheet are musk thistle management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of musk thistle. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Mechanical - Mowing or chopping is most effective when musk thistle plants are at bud stage. Grubbing or digging the plants below the root crown level is effective as well. Do this while the plant is in the rosette stage. Biological - Livestock tend to avoid grazing on musk thistle, although horses and cattle have been known to eat the flowerheads. Biological control insects, such as the seed head weevil (Rhinocyllus conicus) and the crown weevil (Trichosirocalus horridus) are effective on large infestations. When used together, these insects provide fair to good control. Expect to wait at least 3 to 5 years for the insects to establish significant populations and achieve optimum management results. Insects can be obtained at no charge from the Colorado Department of Agriculture. Please call 970-464-7916 or go to www.palisadeinsectary.com for more information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow the herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application TiminWComments Milestone 3 to 5 oz/acre Apply to plants in the spring and early summer at rosette or early bolting stage or to the fall rosette. DO NOT rotate to a broadleaf crop within 1 year of application. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. 2,4-D Amine 1 qt./acre or 1 oz/gal water Spring/fall rosette — before flowering stalk lengthens. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 1.5 — 2 qts./acre or 1.5-2.0 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Clarity 1 qt./acre or 1 oz/ al water Spring rosette — before flowering stalk lengthens and/or late fall treatment of rosettes. DO NOT apply near or under trees and/or shrubs or when outside temperatures will exceed 85 degrees. k�s:M I� - a�':.t - ,q� ` 4� . � F — f Myrtle Spurge/Cypress Spurge Identification and Management Myrtle spurge (Euphorbia myrcinites) and cypress spurge (Euphorbia cyparissias) are non-native, escaped ornamental perennials that reproduce by seed and spread underground by the root system. The roots are brown and grow out from the central taproot in myrtle spurge and from lateral buds in cypress spurge, producing new shoots along their length. Myrtle spurge is low growing, with stems 12-18 inches long that lay close to the ground and are dense with thick, blue-green, fleshy leaves. Leaves are alternate, stiff, triangular, an inch or less, and spiral around the stem. Cypress spurge has smooth, erect stems with linear, narrow leaves up to 1.5 inches long. The flowers are very small and yellowish -green, enclosed by very visible yellowish -green bracts. Flower clusters develop from March to May. One large spurge plant can produce thousands of seeds from three -sided seed capsules that explode when ripe and project the seeds up to 15 feet away from the parent plant. These plants contain white, milky sap that exudes readily upon stem or leaf breakage. This sap can be very damaging to eyes and skin, causing severe irritation and burning. Myrtle spurge has adapted to rocky, sandy soils and xeric climates. Cypress spurge can infest woodlands, pastures and roadsides. Where they become established, they crowd out native vegetation. The competitive, rapidly growing, and extensive root system makes them difficult to kill completely, as new shoots can sprout from broken root fragments. Myrtle spurge and cypress spurge have been placed on the "A" List of the Colorado State noxious weed list. This means these plants must be eradicated from any and all properties in Colorado. Once eliminated, there may still be seed and rootstock in the ground that will propagate new plants. Therefore, spurge sites must be periodically monitored for new growth, and again treated. The most effective method to prevent escape is to remove garden specimens and encourage neighbors to do the same. Recommended Management Methods: Cultural - Seeding and maintaining aggressive grasses will help in competing with myrtle spurge and slow its spread. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Bare spots caused by disturbance or bad soil are prime habitat for weed infestations. Mechanical - Hand -pulling this plant is the easiest way to control small populations. Wear gloves whenever handling this plant, and monitor the area to spot and remove reoccurring shoots. Herbicides - Following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup 2-3 qts/acre or 2-3 oz/gal water Non -selective — do not let spray drift to non -target species. *Products containing 2,4-D or dicamba may also be effective. Alternatives - Sedums, hen and chicks, moss rose (Portulaca grandiflora), alyssum and phlox are safe alternatives, and many more choices can be found at these websites: CSU Cooperative Extension - Horticulture - "Xeriscaping: Ground Cover Plants" http:/ /www.ext.colostate.edu/pubs/garden/07230.htm1 Colorado Native Plant Society - "Suggested Native Plants For Use on the Front Range of Colorado" http://carbon.cudenver.edu/ shill/pdf/CoNPSPIantList.pdf CSU Cooperative Extension and Denver Botanic Gardens Plant Select® List http://www.ext.colostate.edu/psel/pslist.html Escaped Myrtle Spurge If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Oxeye Daisy Identification and Management List B Oxeye daisy (Leucanthemum vulgare) was introduced from Europe as a seed contaminant and as an ornamental. It is a rhizomatous, creeping, short-lived perennial that grows io inches to 2 feet tall. The basal and lower leaves are spoon - shaped, toothed, and with long petioles (leaf stem). The upper leaves are narrow, toothed, and clasp the stem. Flowers bloom between June and August. The flowers are to 3 inches in diameter, with 15 to 3o white ray flowers, and mostly solitary. The phyllaries beneath the flower head are green with a dark brown margin. One flower head can produce up to zoo seeds. Oxeye daisy spread vegetatively from roots, root fragments, or by seed. Seeds may be viable up to 38 years or more. Infestation sites needs to be monitored for at least io years after the last flowering plant has been eliminated and treatments repeated when necessary. Ornamental Shasta daisy (Leucantheum x superbum) is not an aggressive invader and looks similar to oxeye daisy, but it is 6 to 12 inches taller and has larger flowers. Oxeye daisy is an strong competitor. It forms dense stands that reduce native plant diversity. It degrades pastures and natural areas because cattle and wildlife avoid feeding on oxeye daisy. Heavy infestations may reduce nutrient cycling due to a shallow root system and create areas of bare soil, thus increasing soil erosion. Habitats for oxeye daisy included mountain meadows, grasslands, pastures, streams, gardens, waste grounds, railway, and roadsides. Oxeye daisy typically grows in high elevations, up to it000 feet in Colorado. The key to effective control of oxeye daisy is education and prevention. Oxeye daisy has been included in many different seed mixes, thus consumers should carefully read the label prior to planting so- called "native wildflower" mixes. Homeowners and land managers often overlook the impacts and the need to manage this weed because of the plant's attractiveness. Details on the back of this sheet can help to create a management plan compatible with your site ecology. 2013 Quarter Quad Survey Dxeye Daisy llrysiennemunm Jeucanlhemum Xr1317009rterqued &syn., arstrcaua9 and Murmana n coa..ea 16,500 9 iMessed AcOaf I1104r0.0n..i.0em IN9.cr0. 'own 1r 90 cm, 5,. Oo0«... Xr.080 saw `.400 rsw a-n.0e .sem,n..ua99.e?r [a,n 9.100..0,01,011009 000 0001 '-_ ep tn. cer0 .0 n.wr00..[ of Agri... Oxeye daisy is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be either eliminated, contained, or suppressed depending on the local infestations. For more information visit www.colorado. gov/ag/weeds and click on the Noxious Weed Management Program. Or call the State Weed Coordinator at the Colorado Department of Agriculture, Conservation Services Division, (303) 869-9030. Key ID Points 1.15-30 white ray flowers on flowerheads that are 1-3 inches in diameter. 2. Rosette and lower leaves are spoon - shaped and toothed. 3. Upper leaves on the stem are narrow, toothed, and clasp the stem. List B Integrated Weed Management Recommendations t:::li ) L Q Oxeye daisy has been included in many different seed mixes, thus consumers should carefully read the label prior to planting so-called "native wildflower" mixes. Repeated hand pulling can eliminate small infestations. Mowing or grazing by sheep or goats can be effective, in addition with a chemical approach. ., , r - • `' I, ., ,, , CULTURAL Generate awareness for this noxious weed. Carefully inspect "wildflower" seed mixes; do not plant mixes that include Leucanthemum vulgare. Avoid overgrazing, disturbance, and seed dispersal. Bare ground is prime habitat for weed invasions. Tall perennial grasses that shade oxeye daisy are good competitors. di il , y BIOLOGICAL Goats or sheep can be effective in the control of oxeye daisy. There are no insect biological controls available for oxeye daisy. For more information on biocontrols, contact the Colorado Department of Agriculture -Palisade Insectary at 970-464-7916. ' .`` „ �► � ..„,, •,� . r r rr • ;-� x� l� s a .lk!�, r *f MECHANICAL Repeated hand pulling or digging when soil is moist and infestations are small. Oxeye daisy is fairly shallow rooted; pull up as much of the root as possible. If removed during or after flowering, bag \J \J CUCL ' KCHEMICAL O' l Ipdat 07,'?n ::1-C iii I N -/`i�--) i Q V a J d: sJ .°; , �y``' � "" ' �� 44.t -� specimens carefully so as to not scatter seeds. Mowing before flowering or when flower buds are present can limit dispersal; do not mow during or after flowering. Tilling at 6 inches or deeper, and repeated shallowly as necessary, can control patches. ,,,o,,,,,,,,,o,,,,,f .,,,,, s jC? I InIvel slit' _ �r _ -� 46-5 , �" �'�� XJ .r u �,c, s .4t,'=,' '_,h. s 4,14 ,, �ti, . ,�� , - The table below includes recommendations for herbicides that can be applied to rangeland and pastures. 0.25% v/v non-ionic surfactant is equivalent to 0.32 oz/gal of water or i pthoo gal of water. Always read, understand, and follow the label directions. The herbicide label is the LAW! Herbicide Rate Application Timing Aminopyralid (Milestone) 4-6 oz./acre + 0.25% Optimum control when applied at the pre- v/v non-ionic surfactant flower bud growth stage. Metsulfuron (Escort XP) 1 oz. product/acre + 0.25%v/v non-ionic surfactant Surfactant is absolutely necessary. Optimum control when applied at flowering growth stage. 1 oz. product is the minimum eradication rate based on best treatment observed in several CSU Additional herbicide recommendations for this and other species can be found at: www.colorado.gov/agconservation/CSUHerbicideRecommendations.pdf Colorado Department of Agriculture - Conservation Services D A 305 Interlocken Parkway � r�dO Broomfield, CO 800zi CO f (303) 869-9030 University www.colorado.goviagiweeds Rangeland -Pasture Recommendations Perennial Pepperweed Identification and Management Perennial pepperweed (Lepidium latifolium) is a non-native perennial plant that spreads by seeds and creeping underground roots that vigorously produce new plants. Seed production is prolific in heavily infested areas, estimated at 6 billion seeds per acre. The first basal leaves emerge to form a rosette. The leaves have long stems, are gray -green and can be 4 to 11 inches long and 1 to 3 inches wide. The rosettes produce plants of multiple, erect, semi -woody stems with smaller leaves that taper toward the base and have a prominent whitish mid -vein. The leaves become progressively smaller toward the top of the stems. Flowers are white with 4 spoon -shaped petals borne in dense clusters near the stem tips. Perennial pepperweed is a member of the Mustard family. Although an enormous amount of seed is produced, most new plants are shoots from the underground root mass. The roots enlarge at the soil line forming woody crowns. Each crown produces numerous erect stems that grow 2 to 4 feet tall; 6 feet can be achieved under optimal conditions. Root fragments as small as 2 inches can produce a new plant. Perennial pepperweed roots can remain dormant in the soil for several years. Flowering occurs from early summer to fall. The combination of seed production and root shoots enables perennial pepperweed to develop into dense monocultures that dis .lace native .lants and wildlife. A field of perennial pepperweed. Perennial pepperweed can be found in riparian areas and wetlands, adapts to disturbed areas, roadsides and ditches, hay meadows and cropland. Perennial pepperweed is often confused with hoary cress. Hoary cress stems are less than 3 feet tall and have stem leaves with lobed ears that clasp the stem. Perennial pepperweed has smaller leaves that taper toward the base and have a prominent whitish mid -vein. Management programs must include prevention, monitoring, and treatment of small satellite populations before plants develop extensive roots. Focus on containment of large infestations to prevent spread. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of perennial pepperweed. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to perennial pepperweed invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Mechanical control options are typically ineffective. With the exception of flooding, no non -chemical treatments have been proven effective. Biological No known biological control agents available at this time. Development of biological controls has been hampered by a number of closely related native plants, some on the rare and endangered species list. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments 2,4-D Amine 3 qt./acre or 2 oz/gal water for each product Spring- bolting to early bud stage and fall rosette stage. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Escort 1 oz/acre or 1.3 grams to 3 gallons of water Apply from bud to early bloom stage or at fall rosette. Add one teaspoon of household ammonia to 3 gallons of water plus the non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Telar 1 oz/acre or 3/4 of a gram to 3 gallons water Apply at prebloom to bloom or at fall rosette stage. Add a non - ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Round -Up 4 qts/acre or 2.5 oz/ al water Spring- at early bud stage and /or fall rosette stage. Add a non - ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Plateau 8 oz./acre or 0.25 oz/gal water Spring apply to rosette stage or at flowering or at fall rosette. 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J b a• .„T 45�•, � rt: y C � O• el :0L.. � "c3 c(°o �tl0 o' R ,1 F rO 0P- R " "O+-i -C .� N n ' O vY � 'o 'a rt n �'- ^ A- n p ^ n� rt' rt w , _ ° rt CD m ]- C Y ^ w y r, n ¢. C. N y w , (D .O.e o o ¢ x O rt n ,i y ^ rt ^ fD p c a a. y ° Q o w° < o a m ]- H a. '�,$• O �' a. tlq rt 'G- r �°—.� m' ti a.� r°s n n ^ n t � ,o y Pr c Fn ry o o ry P- ni 7 •'t DI __ . Y ^ rt O 4 a. 5'. O X a79' C w o '�7 � '.• ^r 7' O � o (' R^ o'-'0,_,.-0-`,, ❑ � Cr H o a• 9 g n r'n (D ^? n 0-"g � O E '°--' wry n, P� 0 ro ° O a• � r~T a. �. co P (1 .-- v, '.7 n ^ n rt •.R. a g'',7 A, L7 r '� y a+ ."t VQ N On C ET' a- O P co Cara'uus acantholdes 2 Integrated Weed Management recommendations List B Species http://www.colorado.gov/ag/csd CULTURAL Establishment of selected grasses can be an effective cultural control of Musk thistle. Contact your local Natural Resources Conservation Service for seed mix recommendations. Maintain healthy pastures and prevent bare spots caused by overgrazing. Bareground is prime habitat for weed invasions. BIOLOGICAL Biological control insects, such as the seed head weevil and the crown weevil are effective on large infestations. When used together, these insects provide fair to good control. These insects have been known to threaten native thistle populations. Contact the Insectary of Colorado Department of Agriculture to get complete information at 970-464- 7916. Or visit www.colorado.gov/ag/ csd. MECHANICAL Any mechanical or physical method that severs the root below the soil surface will kill Plumeless thistle. Mowing or chopping is most effective when Plumeless thistle plants are at full bloom. Be sure to properly dispose of the flowering cut plants since seeds can mature and become viable after the plant has been cut down. Integrated Weed Management: The key to managing- Plumeless thistle is to prevent seed production. Dense Plumeless thistle stands can be treated by spot use of herbicide programs. Due to the unknown seed viability of plumeless thistle, monitoring up to 10 years, and repeating control methods may need to occur for many years to completely eliminate an infestation. HERBICIDES NOTE: The following are recommendations for herbicides that can be applied to range and pasturelands. Rates are approximate and based on equipment with an output of 30 gal/acre. Please read label for exact rates. Always read, understand, and follow the label directions. herbicide label is the LAW! Herbicide Rate Application Timing Aminopyralid* (Milestone) 5 oz. product/acre + 0.25% v/v non-ionic surfactant Apply in spring rosette to early bolting growth stages or in fall to rosettes. Chlorsulfuron** (Telar) 1-2.6 oz. product/acre + 0.25% v/v non-ionic surfactant Apply in spring from rosette through very early flower growth stages. (Can prevent viable seed formation if applied no later than the first viable flowers begin to Clopyralid (Transline) 0.67-1.33 pints product/acre + 0.25% v/v non-ionic surfactant Apply to rosettes through flower bud stage in spring, or to fall rosettes. Note: *Product not permitted for use in the San Luis valley. **This herbicide has residual soil activity that will affect all broadleaf seedlings germinating after application has occurred. Additional herbicide recommendations for this and other species can be found at: www.colorado.gov/agconservation/CSUHerbicideRecommendations.pdf The Photos Top to bottom © Loke T. Kok, Virginia Polytechnic Institute and State University, Bugwood.org; Richard Old, XID Services, Inc., Bugwood.org; and Kelly Uhing, Colorado Department of Agriculture. Plumeless thistle Rangeland -Pasture Recommendations Puncturevine Identification and Management Puncturevine (Tribulus terrestris L) is also known as goatheads, bullheads, Texas sandbur or Texas tacks. Puncturevine is native to warm temperate and tropical regions of southern Europe, Asia, throughout Africa and in northern Australia. A member of the Caltrop Family, it is a tap rooted herbaceous perennial plant that grows as a summer annual in colder climates. It can also thrive in desert climates and poor soil conditions. A spreading, mat forming plant it can extend up to 10 feet from the central tap root, often forming numerous branches. The leaves are hairy and pinnately compound with 4 to 8 pairs of leaflets. The flowers produced in the leaf axils are lemon yellow with 5 petals. The plants emerge as early as May and continue until frost. The yellow flowers appear as quickly as 3 weeks after the seedlings emerge and are followed by viable fruit and seeds 1 to 2 weeks later. Each fruit consists of 4 to 5 seed sections which at maturity break into hard nutlets with 2 sharp spines. One plant is capable of producing over 500,000 fruits. On average there are 4 seeds per fruit which results in over 1 million seeds per plant. The seeds are viable in the soil for 3 to 7 years. Puncturevine is a problem throughout Colorado. It is a nuisance weed found in disturbed sites, along roadways, in overgrazed pastures, in lawns, gardens and waste areas. To successfully manage puncturevine, persistence in controlling emerging plants is necessary in order to deplete the soil seed bank. Of all control methods, prevention is most important. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. A healthy cover of desirable perennial plants will assist in discouraging puncturevine establishment. On the backside of this sheet are puncturevine management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Department, Weed Division at (970) 304-6496 ext 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of puncturevine. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to punturevine invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Cutting or pulling puncturevine at the root crown can effectively eliminate the plant. However constant monitoring is necessary as this is a very rapidly growing plant. Well -established populations have a large seed bank in the soil that can remain viable for 3 to 7 years. Biological - Two weevil biocontrol agents have been introduced in the U.S. A seed weevil (Microlarinus lareynii) and a stem weevil (Microlarinus lypriformis) when used in combination can greatly assist in the control of punturevine. The weevils can be obtained from the Colorado Department of Agriculture's Insectary. Please call 970-464- 7916 or go to www.palisadeinsectary.com for more information. Herbicides - The following are recommendations for herbicides that can be used in the treatment of puncturevine. Optimum results occur when the plants have recently received moisture and are actively growing. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Glyphosate at 41% concentrate 2% solution or 2 and 2/3 oz/gallon water Apply at early plant growth. Use caution when applying near grasses or other desirable vegetation. Roundup will possibly kill surrounding vegetation. No residual soil activity. Non -selective herbicide. Will kill all vegetation. Outlaw (2,4-D and Dicamba) 1 to 2 pints/acre or 0.5 oz — 1.0 oz/gallon water Spring- at emergence of seedlings. Continue until frost. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Grazing restrictions. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Telar XP 1 to 2.5 oz/acre Apply pre -emergent or early post -emergent. Add surfactant according to Manufacturers direction. Requires continuous agitation. Apply within 24 hours of mixing to avoid degradation. No grazing restrictions if less than 11/3 oz applied. Laramie 25DF 4 oz/acre An early post -emergent option. Must be activated with rainfall and applied when soil temps are cool. Moisture must arrive within 2-3 weeks of application. Add a non-ionic or MSO surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Pendulum AquaCap OR Prowl H2O Short Term 2-4 months: 2.1 quarts/acre Long Term 6-8 months: 4.2 quarts/acre A pre -emergent chemical —it will not kill established growing plants. Spray solution may stain porous surfaces Length of control is dependent on weather conditions. Not labeled for use in range and pasture settings. Purple Loosestrife Identification and Management Purple loosestrife (Lythrum salicaria) is a non-native, tap -rooted, perennial forb. It is native to Europe and was introduced to North America as an ornamental plant for gardens and has escaped into natural areas such as streambanks and shallow ponds. Purple loosestrife reproduces primarily by seed. A single, mature plant can produce up to 3 million seeds per year. The seeds can remain viable in the soil for 5 to 20 years. Pieces of roots or stems also can produce new plants. Purple loosestrife produces multiple 4 -sided stems that can grow 2 to 8 feet tall. Leaves are 2 to 5 inches long, lance -shaped and whorled on the stems. Flowers are tightly grouped in long, vertical heads; they bloom from the bottom up on heads. They are reddish -purple in color, about 1 inch long, and have 5 to 7 petals. Flowers appear from late June through September. Flowering plant infesting Soui Platte riverbank Purple loosestrife can be found along riverbanks, ditches, and wet meadows throughout the state. Infestations rapidly replace native vegetation, can impede water flow in canals and ditches, and have little wildlife habitat value. If purple loosestrife is left unchecked, the wetland eventually becomes a monoculture of loosestrife. The key to effective control of purple loosestrife is early detection when infestations are small. It is fairly easy to control small numbers of loosestrife plants when the seed bank in the soil is small. Eradicating large populations is much more difficult. Biological control should primarily be considered when populations of loosestrife have become large or are inaccessible. Small loosestrife infestations should be eradicated by hand -pulling or herbicide application. On the backside of this sheet are purple loosestrife management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304- 6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural/ Preventive - Prevent the establishment of new infestations by minimizing disturbance and seed dispersal. Mechanical - Hand removal of isolated individuals can be effective on a small scale. Handpulling should be conducted prior to seed set. It is important to remove the entire rootstalk of the plant to avoid regrowth from root fragments. Biological - Two species of beetles (Galerucella calmariensis and Galerucella pucilla) are proving to be effective in the control of purple loosestrife. Insects should be used on large infestations only, and releases of at least 500 beetles per infested site are needed. Insects can be obtained at no charge from the Colorado Department of Agriculture's Insectary. Please call 970-464-7916 or go to www.palisadeinsectary.com for more information. Herbicides - Purple loosestrife is found in very wet soils, so great care should be used when using herbicides so as to not harm other water plants. For early - season control of seedling and regrowth plants less than 1 to 2 feet tall, use of an aquatic -labeled 2,4-D is effective. Look for seedlings in late May or early June where adult plants have grown. The herbicide Garlon 3A is effective on purple loosestrife and like 2,4-D is specific to broadleaved plants. Rodeo is effective on mature plants at the pre -flowering to post -bloom stages. Use with caution, this is a non -selective herbicide and will kill all other vegetation that is sprayed. Be sure to clip and properly dispose of flowerheads before applying Rodeo. This will assist in the prevention of seed spread. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Aquatic 2,4-D Amine 1.0 to 2 qts./acre or 1.0 to 2.0 oz/gal water Early spring — prevents seed formation only. Retreatment will be necessary. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Rodeo 1.0 to 2.0 qts./acre or 1.0 to 2.0 oz/gal water Summer — during flowering stage. Cut and properly dispose of flowerheads before applying Rodeo. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Weed crew clipping and disposing of flowerheads before applying herbicide to a mature purple loosestrife plant. RELEASE OF ACERIA MALHERBAE (THE BINDWEED MITE) ON FIELD BINDWEED Select an area of healthy, lush bindweed. Those patches where the vines are growing up on to each other are ideal. You are looking for the tender growing tip (tips) on green stems with large leaves. For gall placement, take about three inches of a galled stem — a gall in a curled leaf or any odd looking growth — and twist the growing tip of your bindweed around the gall. Keep twisting the two together until you reach the soil level where you can tuck the whole thing under the plant. This is done just to keep the two tightly together. You want the microscopic mite to have no place to go as the gall dries out other than to the new leaf in your patch. You should begin to see the folding and curling of new galls in about 10 days. After a month, the galls are mature enough to run a mower across them if mowing is possible. The wind will also spread the mites as time goes by. You can also collect from your own mite patch as galls form and continue to transfer the mites to new locations. Managing Field Bindweed with the Bindweed Mite Field bindweed (Convovulus arvensis) is one of the most widespread and difficult to manage weeds throughout the United States. The vining plant produces an extensive root system which stores enough nutrients to fuel growth. The plant thrives in the arid western states and will grow on many sites where other plants cannot exist. Control with herbicides is difficult, but the weed can be successfully managed on some sites with fall applications of glyphosate containing herbicides. Control is localities with desirable vegetation, inaccessible areas, and in many agricultural systems is nearly impossible with herbicides. The bindweed mite, Aceria malherbae, is a microscopic mite imported from southern Europe as a biological control agent for field bindweed. The bindweed mite feeds only on field bindweed and closely related wild morning glories. It does not damage other plant species, and it requires bindweed to survive. Bindweed mite feeding causes the formation of gall -like growth of plant leaves. Leaves of infested plants are thickened, and have a "fuzzy" texture. In heavily infested plants, the shoots are misshapen and growth is severely stunted. Recently infested plants have newly emerged leaves that appear folded. The thickened texture and fuzzy appearance are good diagnostic characteristics to identify bindweed mite presence. Bindweed mites have the potential to aid in suppression or control of field bindweed in many arid regions, and under many plant management regimes. It can be useful in wildland settings, pastures, roadsides, disturbed areas, landscape plantings, and other areas. The best results will be obtained with active management of the mite population, especially by mowing of the bindweed which moves the mites around and stimulates new growth for the mites to feed on. Bindweed mites survive better in drier settings. Their impact in sprinkler irrigated settings, especially lawns, will probably be less than in non - irrigated sites. Bindweed mites spend the winter on underground buds on bindweed rhizomes. They have successfully over wintered in Canada and Montana. Excessive moisture appears to be the environmental factor that limits its establishment. Mites migrate to underground buds during drought when plant tops die down. Bindweed mites are available from collections of infested plant material. Several mite nursery sites have been established in western Colorado and Weld County. Distribution of bindweed mites is coordinated by Weld County Weed Division and the Colorado Department of Agriculture in Palisade. It is best to release mites in the cooler part of the day to maximize their survival. The infested plants should be placed in direct contact with the bindweed that is to be infested. It should be either tucked under the infested plants or twisted up with the bindweed vines to keep it in place and from blowing away. Newly infested galls (folded leaves) should be apparent within a week or so. Do not disturb the release site for a few weeks. After this time, mow the area to distribute the mites and stimulate new bindweed growth. When galls are easily found, they can be harvested and spread to new areas to help distribute mites. Success in managing field bindweed with bindweed mites is highly dependent on your expectations. If you expect the bindweed to disappear shortly after releasing the mites, you will be disappointed. The initial impact will be a reduction of growth and limited flowering and seed production of infested plants. It will take a year or more for infested plants to die. Control of bindweed over a large area can take years. Be patient, mow, move mites manually and you will increase your chances of success. Rangeland -Pasture Recommendations Russian knapweed Identification and Management Russian knapweed (Centaurea repens) is a non-native deep-rooted perennial that spreads by seeds and aggressive, creeping, horizontal roots (rhizomes). The roots are black with a scaly appearance. Russian knapweed can grow up to 3 feet in height. The stems and leaves are covered with short, stiff hairs. The flowers are urn -shaped, pink to purple in color, and are solitary at the tips of the upper branches. Russian knapweed can be distinguished from other knapweeds by the pointed papery tips of the bracts that surround the flowers. Russian knapweed emerges from its root system in early spring after soil temperatures remain above freezing. It produces flowers from June to August and sets seed in later summer to early fall. Russian knapweed reproduces primarily from its root system. Buds on the horizontal roots can form adventitious shoots that may grow to be independent plants. Russian knapweed can be managed with herbicides or insects, but long-term control must include planting competitive plant species to occupy bare ground once infested by the weed. Russian knapweed is allelopathic, which means it contains a toxic substance that inhibits the growth of competing plants. This weed may also be toxic to horses resulting in serious injury or possibly death of the animal. Russian knapweed displaces native vegetation and reduces forage values on range and pasturelands. It can infest many land types, from roadsides, ditch banks, riparian zones, pastures, irrigated cropland, clearcuts, and cropland. The most effective method of control for Russian knapweed is to prevent its establishment through proper land management. Maintain healthy pastures and rangeland and continually monitor your property for new infestations. On the backside of this sheet are Russian knapweed management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Seeding and maintaining aggressive grasses will help in competing with Russian knapweed and slow its spread. Species such as thickspike wheatgrass and streambank wheatgrass have proven to be effective competition against Russian knapweed infestations. Proper grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to Russian knapweed invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Due to the extensive root system, hand -pulling this plant is not a viable option. Cutting several times before the plants bolt stresses Russian knapweed plants and forces them to use nutrient reserves stored in the root system. Combining mowing with herbicides will further enhance control of this weed. Mow repeatedly during the summer then apply a herbicide in the fall. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. A combination of seeding competitive grasses and the application of herbicides have proven to be effective in managing Russian knapweed. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/ Comments Clarity + 2,4-D Amine 1 qt./acre for each product or 1 oz/gal water for each product Spring- bud to early flower stage and/or fall rosette stage. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 3 qts./acre or 3.0 oz/gal water Spring- bud to early flower stage and/or fall rosette stage. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Spring- bud to early flower stage and/or fall rosette. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Milestone 4 to 6 oz/ acre Apply to plants in the spring and summer flowering stage and/or to dormant plants permissible to treat seasonally dry wetlands areas between upland and lowland sites. broadleaf crop within 1 year of application. surfactant @ 0.32oz/gal water or 1 qt/100 that are in the bud to in the fall. It is and transitional DO NOT rotate to a Add a non-ionic gal water. e .: +fir m , Rangeland -Pasture Recommendations Russian Olive / Elaeagnus angustifolia Identification and Management Russian olive is a non-native deciduous shrub or small tree that can reach 10-25 feet tall. The foliage has an overall silvery appearance. The leaves are arranged alternately, 2-3 inches long and narrow with smooth margins. The upper surface is gray - green while the lower surface and leaf stalks are silvery -gray. The bark is dark reddish - brown in color and usually has 1-2 inch thorns. The twigs also have a silver-gray appearance. The flowers appear between May and June, they are yellow, bell shaped and arranged in clusters. The tree starts to produce fruit at 3 year of age. The fruit is shaped like a small olive and contain a single seed. The seeds are viable for up to 3 years. The Russian olive spreads mostly through seeds but can re -grow from injury. The Russian olive is very adaptable. The seedlings are tolerant of shade and drought conditions. It can thrive in a variety of soil types, including bare mineral substrates. They can grow between sea level and 8,000 feet. The Russian olive originated in southern Europe, central Asia and eastern Asia. They were introduced to the United States in the late nineteenth century as an ornamental shrub or small tree. It has been used extensively in wind breaks and stream bank stabilization. Russian olive will out -compete native vegetation, changes soil characteristics and taxes water reserves. It rapidly takes over lowland fields and often dries up irrigation ditches. Although the fruit is often eaten by birds, studies show there is a greater number of birds in an area dominated by native Cottonwoods. The long thorns the plant produces can make a stand of Russian olive impassable to cows and wildlife. This results in fewer native plants and less animal diversity. The most effective method of control for Russian olive is to prevent its establishment through proper land management. Monitor susceptible areas for new infestations. On the backside of this sheet are Russian olive management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304- 6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - After managing Russian olive infestations, other vegetation must be established to prevent re -invasion. Competitive grasses and planted cottonwood cuttings have proven to be effective at reducing the chances of re -invasion. Contact your local CSU Extension office or Natural Resources Conservation Service office for proper seed mix recommendations. Mechanical - In areas where woody native plants are present and their continued existence is desired, or for large stands of Russian olive it may be necessary to cut and treat the stumps with a herbicide. This is referred to as the cut -stump treatment. Cuts should be made within 2 inches of the grounds surface, immediately followed by a herbicide application to the cut stems. The girdling method involves making shallow, overlapping cuts into the bark around the trunk base. Use a hatchet or chainsaw to make these cuts. Then lightly spray the entire cut surface with herbicide. Herbicides - For large stands of Russian olive that would essentially be monotypic, foliar applications of herbicides are effective. Late summer/early fall are optimum treatment times using this method. This is recommended for areas that have little to no desirable shrubs and trees. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup Pro or Max or Ultra 50-100% concentrate Cut -Stump treatment. Ensure coverage of the entire cambium. Cut trees and re -sprouts close to the soil surface. Apply immediately to the freshly cut surface. Applications should be made during periods of active growth and full leaf expansion. Non -Selective. Remedy Ultra Actively growing rate: Cut -Stump treatment. Do not apply directly to water, or to areas where surface water is present. No grazing restrictions for livestock other than lactating dairy animals. Best time to treat is when actively growing. Established grasses are tolerant. 14 -day haying restriction. 3 -day slaughter withdrawal. For root suckering trees, also spray the ground under the plant to control root suckers not yet visible. There is an option for Basal Bark treatment. Read the label. Selective. 1.5-2% solution in oil Or Dormant rate: 3-6 qts in oil to make 100 gallons total. Pathfinder II Ready- to -use Cut -Stump or Basal Bark treatment. Do not apply directly to water, or to areas where surface water is present. Seasonally dry wetland areas ok. No grazing restrictions for livestock other than lactating dairy animals. 14 -day haying restriction. No more than 2.7 gallons/acre/year may be applied. Selective. Arsenal 8-12 oz/gal water (plus 0.25% surfactant) Cut -Stump treatment. Thoroughly wet the cambium area of the trunk. Frill or Gridle treatment. Using a hatchet expose at least 2 growth rings and apply a 25-100% solution to the cup. Addition of a surfactant will improve control for both treatments. Either non-ionic or methylated seed oil may be used. Re-entry interval of 48 hours. Non -Selective. Remedy Ultra 32 to 64 oz/acre In late summer or during drought use the higher rate. 2,4-D or Tordon 22K can be added to the mix. Foliar Treatment. Do not apply directly to water, or to areas where surface water is present. No grazing restrictions for livestock other than lactating dairy animals. Best time to treat is when actively growing and fully leafed out. Established grasses are tolerant. 14 -day haying restriction. 3 -day slaughter withdrawal. Use 10 to 100 gallons/acre. Use higher spray volumes to ensure adequate coverage with increased depth and density of foliage. Thoroughly wet all leaves, stems, and root collars. Add a non-ionic surfactant at 32 oz/100 gallons. Selective. Arsenal 0.6 to 6 oz/acre (1/2 % to 5% solution)/ gallon of water Max Range and Pasture application is 48 oz/acre Foliar Treatment. Do Not apply within a'h mile of an active potable water intake. No grazing restrictions. 7 -day haying restriction. Excessive wetting of the foliage is not necessary. 4-8' tall plants should be sprayed on at least 2 sides using a smooth vertical motion from the crown to the bottom. 8' and taller plants should be treated on at least 2 sides in a zigzag motion from the crown to the bottom. Add a non-ionic surfactant at 32 oz/100 gal. Non -Selective. Riparian Noxious Weeds Saltcedar/ tamarisk Identification and Management Saltcedar, aka tamarisk (Tamarix ramosissima), is a non-native deciduous or evergreen shrub or small tree that grows from 5 to 20 feet tall. The bark on saplings and stems is reddish -brown. The leaves are small and scale -like and the flowers are pink to white and 5 -petaled. Saltcedar reproduces by seeds as well as vegetatively. A mature plant can produce up to 600,000 seeds per year. Seeds are viable for up to 45 days under ideal conditions. Saltcedar buds break dormancy in February or March. Flowering occurs anytime between April and August. Ideal conditions for saltcedar seedling survival are saturated soil during the first few weeks of life, a high water table, and open sunny ground with little competition from other plants. Saltcedar was introduced from Eurasia and is now widespread in the United States. It was introduced as an ornamental and as a streambank stabilizer. Saltcedar crowds out native stands of riparian and wetland vegetation. It increases salinity of surface soil, rendering the soil inhospitable to native plant species. It uses more water than native plant communities, one large saltcedar plant can consume up to 200 gallons of water per day. Saltcedar can be found along floodplains, riverbanks, streambanks, marshes, and irrigation ditches. The most effective method of control for saltcedar is to prevent its establishment through proper land management. Monitor susceptible areas for new infestations. On the backside of this sheet are saltcedar management recommendations. If you have any questions or would like more information, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - After managing saltcedar infestations, other vegetation must be established to prevent re -invasion. Competetive grasses and planted cottonwood cuttings have proven to be effective at reducing the chances of re -invasion. Contact your local CSU Extension office or Natural Resources Conservation Service office for proper seed mix recommendations. Mechanical - A bulldozer or prescribed fire can be used to open up large stands of saltcedar. These methods must be followed up with a herbicide treatment of the resprouts when they are 1 to 2 meters tall. Herbicides - For large stands of saltcedar that would essentially be monotypic, foliar applications of the herbicide Arsenal, Habitat or Arsenal plus Roundup are effective. Late summer/early fall are optimum treatment times. This is recommended for areas that have little to no desirable shrubs and trees. In areas where woody native plants are present and their continued existence is desired, it may be necessary to cut and treat saltcedar stumps with a herbicide. This is referred to as the cut -stump treatment. Cuts should be made within 2 inches of the grounds surface, immediately followed by a herbicide application to the perimeters of the cut stems. The products Arsenal and Remedy Ultra are effective but must be applied within one minute after cutting because wound healing occurs very quickly and decreases herbicide penetration. Always read, understand, and follow herbicide label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Roundup Pro or Max or Ultra 50-100% concentrate Cut -Stump treatment. Ensure coverage of the entire cambium. Cut trees and re -sprouts close to the soil surface. Apply immediately to the freshly cut surface. Applications should be made during periods of active growth and full leaf expansion. Non -Selective. Remedy Ultra Actively growing rate: Cut -Stump treatment. Do not apply directly to water, or to areas where surface water is present. No grazing restrictions for livestock other than lactating dairy animals. Best time to treat is when actively growing. Established grasses are tolerant. 14 -day haying restriction. 3 -day slaughter withdrawal. For root suckering trees, also spray the ground under the plant to control root suckers not yet visible. There is an option for Basal Bark treatment. Read the label. Selective. 1.5-2% solution in oil Or Dormant rate: 3-6 qts in oil to make 100 gallons total. Pathfinder II Ready- to -use Cut -Stump or Basal Bark treatment. Do not apply directly to water, or to areas where surface water is present. Seasonally dry wetland areas ok. No grazing restrictions for livestock other than lactating dairy animals. 14 -day haying restriction. No more than 2.7 gallons/acre/year may be applied. Selective. Arsenal 8-12 oz/gal water (plus 0.25% surfactant) Cut -Stump treatment. Thoroughly wet the cambium area of the trunk. Frill or Gridle treatment. Using a hatchet expose at least 2 growth rings and apply a 25-100% solution to the cup. Addition of a surfactant will improve control for both treatments. Either non-ionic or methylated seed oil may be used. Re-entry interval of 48 hours. Non -Selective. Remedy Ultra 32 to 64 oz/acre In late summer or during drought use the higher rate. 2,4-D or Tordon 22K can be added to the mix. Foliar Treatment. Do not apply directly to water, or to areas where surface water is present. No grazing restrictions for livestock other than lactating dairy animals. Best time to treat is when actively growing and fully leafed out. Established grasses are tolerant. 14 -day haying restriction. 3 -day slaughter withdrawal. Use 10 to 100 gallons/acre. Use higher spray volumes to ensure adequate coverage with increased depth and density of foliage. Thoroughly wet all leaves, stems, and root collars. Add a non-ionic surfactant at 32 oz/100 gallons. Selective. Arsenal 0.6 to 6 oz/acre (1/2 % to 5% solution)/ gallon of water Max Range and Pasture application is 48 oz/acre Foliar Treatment. Do Not apply within a % mile of an active potable water intake. No grazing restrictions. 7 -day haying restriction. Excessive wetting of the foliage is not necessary. 4-8' tall plants should be sprayed on at least 2 sides using a smooth vertical motion from the crown to the bottom. 8' and taller plants should be treated on at least 2 sides in a zigzag motion from the crown to the bottom. Add a non-ionic surfactant at 32 oz/100 gal. Non -Selective. Rangeland -Pasture Recommendations Scotch thistle Identification and Management Scotch thistle (Onopordum acanthium) is a non-native biennial forb that reproduces solely by seed. A biennial is a plant that completes its lifecycle within two years. During the first year of growth, Scotch thistle appears as a rosette in spring or fall. During the second year in mid to late spring - the stem bolts, flowers, sets seed, and the plant dies. A prolific seed producer, Scotch thistle can produce up to 14,000 seeds per plant. Therefore, the key to managing this plant is to prevent seed production. Scotch thistle can grow up to 12 feet tall. Stems are numerous, branched, and have broad, spiny wings. The leaves are large, green, spiny, and covered with fine dense hair giving the leaf a woolly appearance. The flowers are violet to reddish in color, numerous (70-100/plant), and are surrounded by spine - tipped bracts. You can expect to see flowers from mid -June to September. Due to the robust, spiny nature of Scotch thistle, this plant can act as a living barbed wire fence, making areas impassible for wildlife, livestock, and people. Scotch thistle invades rangeland, overgrazed pastures, roadsides, and irrigation ditches. It also prefers moist areas adjacent to creeks and rivers. On the backside of this sheet are Scotch thistle management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website www.weldweeds.org. Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of Scotch thistle. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to Scotch thistle invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Any mechanical or physical method that severs the root below the soil surface will kill Scotch thistle. Mowing or chopping is most effective when Scotch thistle plants are at full -bloom. Be sure to properly dispose of the flowering cut plants, since seeds can mature and become viable after the plant has been cut down. Biological - There are no biological control insects available that will control Scotch thistle. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/ Comments 2,4-D Amine 1 qt./acre or 1 oz/gal water Spring/fall rosette — before flowering stalk lengthens. DO NOT apply when outside temperatures will exceed 85 degrees. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Curtail 1.5 — 2 qts./acre or 1.5-2.0 oz/gal water Spring rosette to pre -bud stage and/or fall rosette. Add non-ionic surfactant @ 0.32 oz/gal water or 1 qt/100 gal water. Clarity 1 qt./acre or 1.0 oz/gal water Spring rosette — before flowering stalk lengthens and/or late fall treatment of rosettes. DO NOT apply near or under trees and/or shrubs or when outside temperatures will exceed 85 degrees. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Milestone 3 to 5 oz/ acre Apply to plants in the spring and early summer at rosette or bolting stage or to the fall rosette. It is permissible to treat seasonally dry wetlands and transitional areas between upland and lowland sites. DO NOT rotate to a broadleaf crop within 1 year of application. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Sulfur Cinquefoil Identification and Management Sulfur cinquefoil (Potentilla recta L.) is a perennial forb in the Ranuncula- ceae family, also know as roughfruit or erect cinquefoil. There are 32 Potentilla species in Colorado, 32 have compound leaves, 26 of them are hairy, four are introduced, one is a rare endemic, and they hybridize within the Genus. Thus, correct identification is imperative. The plant overall has a ring -like form, growing from the center outward and its stiff stems give it an upright growth form, up to three feet tall. The stem, peti- oles, calyx and underside of leaves are hirsuite with long perpendicular hairs, sparse hairs on upper leaf surface. The palmate compound leaves with serrate margins and narrow oblanceolate and generally has five leaflets. The underside of its leaves are green. Leaves are basal, alternate on stem and stipulate. The perfect flowers are arranged in a loose cyme. Each flower has pale yellow petals and notched margins; flower color is not diagnostic. Like many Potentilla species, it has five bracts that subtend flowers, five petals, 25 or 30 stamens, numerous pistils, superior ovary and hypanthium. The style is not plumose or hooked at the top. The achene fruit is slightly winged with a heavily network - like veined surface, holding seeds. It is a prolific seeder (Zouhar 2003). Most seeds fall close to the parent plant. Seed longevity is at least four years (Zouhar 2003). It reproduces mainly vegetatively from the woody base where new shoots sprout as older portions die back, even- tually forming new independent plants (Zouhar 2003). The woody taproot and lateral roots grow annual rings that can be used to age the plant up to 6 years (Dietz et al. 2002). The native slender cinquefoil (Potentilla gracilis) is often confused with sulfur cinquefoil. It has palmate compound leaves that are shallowly toothed, broad oblong -elliptical shape, has five leaflets, and the leaf underside is green. It can be sparsely to densely hairy, but the hairs on the stem are appressed; small hair tufts are on leaflet tips. Long yellow petals exceed the length of its sepals. It grows to three feet tall. sulfur cinquefoil Potentilla mm Beautiful potentilla (Potentilla pulcher- rima) is another hirsuit native that has many appressed stem hairs. However the underside of the leaves are gray and hairy. Its leaves are shallowly and obtusely serrate and each leaflet is rounded at the tip. 201.65tace.ride Gsvcbution in Colorado ub aw Aamtely )aa anrewna,ic. Based cn 2016 Quarterquad and EDDMap5 Field Survey pats ada..,sm �ammaw=<.Iwila I, .. �wpanns.rzand aa., data rcurc.=;<arnPl.aL,cacr.mLleparlan..r.r4.1.. einLetnaltwff B Abet 1b la atrea p( 9110 so icr•» mM.. In Colorado, sulfur cinque- foil is robust in partial to full sun and moist soil found in wet meadows, swales, seeps, ditches, wetlands, riparian areas, and roadsides. However, it can also tolerate slopes and dry sites. Seedlings can be susceptible to drought when faced with interspe- cific competition (Zouhar 2003). P. recta . pulcherrima P. recta P. pule` �rrima Key ID Points 1. Hirsuit calyx with perpendicular hairs 3. Hirsuit stem, petioles & leaves with perpendicular hairs 4. Caudex & woody taproot with annual rings 2. Leaf underside is green L List B Integrated Weed Management Recommendations Effective integrated management means using a variety of eradication methods along with restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes. Restore degraded sites. Avoid soil disturbance. Prevent seed production and seeds from dispersing, e.g. on contaminated equipment. Rest sites until restored. Modify land use practices. Use methods appropriate for the site, other plants present and land uses. CULTURAL Since sulfur cinquefoil is shade -intolerant and seedlings are suseptible to drought, promote species that provide dense shade, high ground cover, or remain robust during drought, providing appropriate site conditions (Zouhar 2003). In cultivated sites, plowing, discing and reseeding to contiguous crop cover, such as grass may be effective as long as the entire root crown is killed (Zouhar 2003). In wildland settings, maintain or restore a competitive assemblage of shrubs, forbs, cool and warm season grasses, annuals and perennials. Use locally adapted species and mycorrhizal fungi that are ecologically appropriate for the site to improve competitiveness. Implement whole site restoration of soils, plants and water regimes where dense colonies of sulfur cinquefoil exist. Minimize soil compaction and disturbance, especially in moist soil. taW .. ' �w�1Y ?u m i y ,�• :� s © G. Eric and Edith Matson, Library of Congress 4.— f - ft BIOLOGICAL Sulfur cinquefoil is not palatable to cattle, sheep or horses likely due to tannins, but may be palatable to goats; when eaten, only buds and flowers are selected (Zouhar 2003). Properly managed grazing can improve vigor of desired species and indirectly reduce sulfur cinquefoil. There are no biological control agents for sulfur cinquefoil authorized in Colorado that would effectively control it. For more information about biological control agents, visit the Colorado Department of Agriculture's Palisade Insectary website at: www.colorado.gov/ag/biocontrol. Arizona Native Plant Society MECHANICAL Since sulfur cinquefoil grows new shoots readily at the caudex, mechanical methods that fragment roots, such as tilling, hand -pulling and mowing are not recommended. Mowing, chopping and deadheading leaves roots behind, stimulates shoot and flower production and disperses flowers and seeds, which expands the infestation. Be sure to remove the entire upper root crown if digging in small infestations. Collect, bag, and dispose of or destroy flowers; seeds could mature and germinate if left. Low severity prescribed fires would leave root caudex unaffected and cause resprouting. Piling slash on infestations can increase temperature transfered to roots during prescribed fire, but resulting high severity effects can damage soils. Spring burns are more effective than fall burns for mature plants; fall burns are best for seedlings (Zouhar 2003). Techline Invasive Plant News CHEMICAL NOTE: Herbicide recommendations to control sulfur cinquefoil in pastures and rangeland are found at: https:// goo.gl/TvWnv9. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Consult local turf and ornamental experts for herbicides appropriate for residential settings. Always read, understand, and follow the label directions. The herbicide label is the LAW! Colorado Department of Agriculture - Conservation Services 305 Interlocken Parkway Broomfield, CO 800zi (303) 869-9030 www.colorado.gov/ag/weeds Wild Caraway Identification and Management List B Irene Shonle, Colorafiv Raft University ention _ Wild caraway (Carum carvi L.) is a biennial to perennial forb in the Apiaceae family, also known as caraway, not to be confused with cumin (Cumi- num cyminum). It grows up to 70 cm tall. Leaves are primarily basal, however stem leaves are also present in fewer numbers and smaller in size comparatively.The overall shape of the basal leaves is ovate with a tripinnate form. Stem leaves are fine and filliform; each leaflet is less than 1 mm wide. Stem leaves are opposite. Stems and leaves are glabrous. Tap roots are fusiform, similar to a carrot, and up to 25 cm long. Like other plants in the carrot family,the inflorescence is a com- pound umbel. Peduncles range from 5 to 13 cm long. On each umbel, there can be 7 to 14 rays, usually an unequal number, each measuring about 2 to 4 cm long in an upright position. The pedicel hold- ing each umbellet is about 1 to 12 mm wide. Usually there are no bracts in the involucre or bractlets in the involucel, or they are tiny. Flowers are usually white to pale pink, and when viewed up close, are very distinct. Each flower is made up of five petals that are obcordate with the center cupped inward forming a hook. Five stamens surround two stylopo- dia. The fruits are oblong, compressed laterally and prominently ribbed evenly. Their size ranges from 3 to 4.5 mm long and are about half as wide. Even with a slight movement, mature seeds shatter and disperse. In Colorado, wild caraway flowers from May through July, sets fruit through September. Its origin is distributed from Europe, North Africa, Middle East, Central Asia, Himalayas in India and West Pakistan (eFloras 2018). It is very common in its native range. Worldwide its fruits are used as a culinary spice and explored for medicinal properties due to its aromatic essential oils, carvone and limonene (Solberg et al. 2016). In 1893, James H. Cowen collected the first Colorado wild caraway specimen from a street in Fort Collins (SEINet 2018). In Utah, wild caraway was likely introduced by Mormon settlers (Pammel 1910). Currently in Colorado, it is found in mountain valleys, and occasionally in the eastern plains. It prefers moist soil, such as irrigated fields and pastures, ditches, riparian corridors, wetlands, wet meadows, swales and roadsides. It can tolerate dry soils, such as montane grasslands, abandoned lands, montane woodlands, subalpine forests and stony fields. Elevation ranges from 1500 to 4300 meters. wild caraway Comm cprvi 201..6 Sbteertide Distribution in Colorado 0.am Based cn X11.6 quartergwd and EODMaps Fleur surrey Data noes aroma. towawa .hOeacre hyone�,� r�r,rr.nda�.,doram.,.�e. *Came. new.. agrauro.. AN a �,...� an,. 1.,osc� K n.sB,bea pcs,.snraA.„ From a distance, wild cara- way can be confused with Queen Anne's lace (Daucus carota) or common yar- row (Achillea millefolium). Queen Anne's lace has distinct three -pronged lin- ear bracts subtending the inflorescence and the rays of the inflorescence form a nest -like structure as they curve inward. • © Botanic Gardens in the Netherlands Key ID Points 1. Flowers compound umbel, 5 white obcordate petals cupped inward, 5 stamens, & 2 stylopodia 2. Tripinnate stem leaves 3. Evenly ribbed seeds 3 mm long 4. Carrot -like brown taproot •1 inane uananD List B Integrated Weed Management Recommendations Rev. 2/19 Effective integrated management means using a variety of eradication methods along with restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes. Restore degraded sites. Avoid soil disturbance. Prevent seed production and seeds from dispersing, e.g. on contaminated equipment. Rest sites until restored. Modify land use practices. Use methods appropriate for the site, other plants present and land uses. H4iarian Randall, Sage -grouse Initiative CULTURAL Since wild caraway prefers moist soil, modify irrigation or water regimes if possible to make sites less hospitable. In irrigated fields, switch to grass/monocots until control is established. In wildland settings, maintain or restore a competitive assemblage of shrubs, forbs, cool and warm season grasses, annuals and perennials. Use locally adapted species that are ecologically appropriate for the site to improve competitiveness. Incorporate soil amendments, soil microbes and mycorrhizal fungi to boost desired species when appropriate. Aim to reduce above and below ground space and nutrients to make them unavailable to wild caraway. Minimize soil compaction and disturbance, especially in wetlands and moist soil. Acquire permits for wetland restoration, if required. © Harris and Ewiing, Library of Congress �f. 't' - BIOLOGICAL Wild caraway is toxic to horses but is highly palatable to other livestock in spring before bolting. Its reported as a possible dewormer and source of minerals (Schmit et al. 2012, Walter et al. 2001). Properly managed grazing can improve vigor of desired species and directly reduce wild caraway. Currently there are no biological control agents for wild caraway authorized in Colorado. For more biocontrol information, visit the Colorado Department of Agriculture's Palisade Insectary website at: www. colorado.gov/ag/biocontrol MECHANICAL Mechanical methods are best for residential areas and small infestations. Sever roots below the soil surface early in the season before the plant stores energy, and before seed production. Mowing, chopping and deadheading leaves roots behind, stimulates more flower production; these methods require consecutive years of season - long treatments. Mowing, especially when timed near flowering or seeding phases, often disperses flowers and seeds, which expands the size of the infested area. Collect, bag, and dispose of or destroy flowers; seeds could mature and germinate if left on the ground. Prescribed fire temperatures would need to be very hot to carry in moist soil conditions; this type of fire would smolder for long durations and kill microbes and native plant roots and may leave wild caraway roots moderately damaged. © Wyoming Bureau of Land Managemen CHEMICAL NOTE: Herbicide recommendations to control wild caraway in pastures and rangeland are found at: httbs:// goo.gl/TvWnv9. Rates are approximate and based on equipment with an output of 30 gal/acre. Follow the label for exact rates. Consult local turf and ornamental experts for herbicides appropriate for residential settings. Always read, understand, and follow the label directions. The herbicide label is the LAW! Colorado Department of Agriculture - Conservation Services 305 Interlocken Parkway Broomfield, CO 800zi (303) 869-9030 www.colorado.gov/ag/weeds Yellow Flag Iris Identification and Management Yellow flag iris (Iris pseudacorus) is an herbaceous perennial, semi -aquatic, obligate wetland species and is found in areas such as stream edges, rivers, lakes, and ponds. Plants grow partially submerged in shallow water and form dense, robust monocultures that expand aggressively and outcompete native vegetation. Yellow flag iris is also re- ferred to as yellow flag, yellow iris, or wa- ter flag. It is in the Iris family, Iridaceae. Reproduction of yellow flag iris is mostly vegetative, through the spread of large clumps of rhizomes in water. Flood events significantly enable the dispersal of this species as rhizome clumps that may even include adult plants break from existing populations and are transported by fast moving water. In addition to rhizome dispersal, plants also can spread and reproduce by seed. Plants typically produce up to 120 seeds per pod which can remain buoyant and float for up to two months. Leaves are long, flat, and cattail -like, usually blue-green in color, broad, and pointed at the tips. Like other iris species, leaves originate from a single point. In cross-section, the base of yel- low flag iris is flattened compared to the round base of cattails. Mature plants produce bright yellow iris flowers from late spring to early summer that occur in inflorescences of several flowers ar- ranged along round stems. Iris flowers are characterized botanically by three petals and three sepals. Yellow flag iris is the only yellow iris found in wetlands in Colorado. Yellow flag iris is native to Eurasia and northern Africa and was introduced to the U.S. through the ornamental trade in the early 1900s. It was first planted oramentally in the West in the mid - 1900s, escaping cultivation and invad- ing natural areas shortly thereafter. The plant grows along shorelines and in floodplains, irrigation ditches, and other slow moving waters. It grows 3 to 6 feet in height, and infestations can impact irrigation, recreation, and native species. Infested irrigation ditches suffer reduced water flow and availability. Recreational impacts include interference with boat propellers, swimming, and fishing. The key to effective control of yellow flag iris is to prevent establishment through proper land management. Maintain healthy riparian corridors, wet- lands and rights -of -way, and continually monitor your property for new infestations. Yellow flag iris is a designated "List A" species in the Colorado Noxious Weed Act. It is required to be eradicated wherever found in the state. The following page provides management recommendations. For more information please visit: www.colorado.gov/ ag/weeds or call the CDA at 303-869-9000, and ask to speak with staff in the Noxious Weed Program. Key ID Points 1. Showy yellow iris flowers, when present. 2. Broad, blue- green leaves that are pointed at the tips. 3. Base of the plant appears flattened in cross-section (not round). LESLIE J. MEHRHOFF List A Integrated Weed Management Recommendations OC� Effective integrated management means using a variety of eradification methods in the same site along with restoration, prevention of seed production and dispersal, and monitoring. Maintain robust healthy native landscapes. Restore degraded sites. Avoid soil disturbance. Prevent seed production and seed dispersal, e.g. on contamination equipment. Rest sites until restored. Modify land use practices. Use methods appropriate for the site, including land use practices. _ - - - 6.abundant liliew. , __ •the ti t\ ' tok: • Leslie J. Mehrhaff CULTURAL Cultural controls include maintaining healthy, biodiverse, native communities in slow -moving streams, ponds, reservoirs, and wetlands to help prevent establishment. Prevent introduction and establishment of new infestations by conducting regular inspections of recreational and commercial boats and waterways. Remove all plant parts from boats and prevent transportation of propagules into uninfested waters. *� 4Nglib -* y 1 F ii, " • BIOLOGICAL Biocontrol agents are not included in the prescribed management plans by the State since eradication is the management objective for all List A species. No biocontrol agents for yellow flag iris are available. For more information on the use of biocontrol agents to control weeds in Colorado, please contact the Palisade Insectary of the Colorado Department of Agriculture at 970-464-7916. LI 0 � ZL I O - ' � �I �v` ,g'� I, Leslie J.Mehrhoff MECHANICAL Small infestations can possibly be dug out by hand, especially if water levels are low, but follow-up treatment and monitoring will be required. All plant parts must be collected so that the infestation doesn't reestablish or spread from remaining fragments and roots. Raking is NOT recommended since it will break up rhizomes which can create a bigger problem. Make sure you can access and dispose of all plant parts before attempting mechanical treatment, as ineffective removal can do more harm than good. 6 � �j •� s.... O Y ; �'µ �.' ,_ `w� _ mii7' , • Leslie J. i 'ri , I + l; I� +rr 04, , `t ' y:' ,. ".� .. ;�'+' `i •! Mehr-, := ._ ._ �. F.=- - CHEMICAL The following are recommendations for herbicides that can be applied in aquatic environments to treat yellow flag iris. Rates are approximate and based on smaller infestation, spot -spraying techniques, and follow up treatments may be required. Please reference the label for exact rates, limitations, and other information. Always read, understand, and follow the label directions. The herbicide label is the law. (Q ) J `� Rev. HERBICIDE RATE APPLICATION TIMING Glyphosate (Aquatic -approved formulation) Up to 5% by volume Up to 5% by volume Late spring to early summer will be most effective, although fall applications have been made with some success Imazapyr (Aquatic- approved formulation) 1% by volume Appropriate for fall applications on mature plants Additional herbicide recommendations for List A and B species can be found at: Herbicide Recommendations for Colorado's Noxious Weeds Colorado Department of Agriculture Conservation Services 305 Interlocken Parkway Broomfield, CO 800zi COLORADO (303) 869-9030 University3/23 Department of Agriculture www.colorado.gov/ag/weeds Yellow Nutsedge Identification and Management List B Yellow nutsedge (Cyperus esculentus) is a warm season, perennial species that is native to Europe. Plants range from 6 to 30 inches tall. Leaves originate from the base of each stem and are grass- like, smooth, glossy, and folded lengthwise. The stems are pithy and triangular in cross-section. The flower inflorescence is umbrella -shaped, has up to 4o florets per flattened spikelet, and subtended by 3 to 9, long, leaf- like bracts. Flowers are yellowish - brown in color and appear from June to October. The root system on each plant can produce hundreds to thousands of hard, round, brown - black tubers in a season; the tubers can survive 3 to 4 years. Yellow nutsedge is particularly noticeable in July and August when it grows more quickly than native species and stands out visually. Yellow nutsedge is very damaging to crops like onions, potatoes, beans, and corn. It reduces crop yield and quality by competing for light, water, and nutrients. Yellow nutsedge is a serious invader because it cannot be controlled by common grass herbicides and is extremely difficult to eliminate from cropland sites once it invades. Yellow nutsedge favors moist areas, irrigated croplands, and forms dense colonies. It can also be found on disturbed sites within: pastures, floodplains, dams, ditches, streambanks, roadsides, wet fields, wet prairies, turf, landscaped areas, and around lakes and ponds. It has been sighted in elevations up to 8,20o feet. Once yellow nutsedge establishes, it is drought tolerant. The key to effective control of yellow nutsedge is prevention. It is especially important to clean dirt and tubers from potentially contaminated farm and construction equipment. It can also be introduced with nursery activities and contaminated transplants. New infestations must be treated early , before tubers form and the plant becomes established.. Hand pulling plants, when they first appear and have less than 6 leaves, help deplete carbohydrates that supply the tubers growth. In the spring, when plants are young, herbicide treatments are an option. Details on the back of this sheet can help you create a management plan compatible with your site ecology. Yellow Nutsedge C,fre,us escore,P s 2013 Quarter Quad Survey 29,3 4uannyuaa Sumly ihatnbaAron eM AlmnOan e It is illegal to plant any variety of yellow nutsedge in Colorado, including chufa (Cyperus esculentus var. sativus) which is sometimes used to attract wildlife, such as turkeys. natruxoar acreage e..a es e.a,aee M Care, fOVeC tmwntera erd cenWae04 ur cdameo Dewar,. on apeawm Yellow nutsedge is designated as a "List B" species in the Colorado Noxious Weed Act. It is required to be either eliminated, contained, or suppressed depending on the local infestations. For more information visit www.colorado.gov/ag/ weeds or call the State Weed Coordinator at the Colorado Department of Agriculture, Conservation Services Division, (303) 869-9030. '�...O h Lynn Scsnosk Univ. of Ceorgiz © 2007 The Regents of Univ. of Cal Key ID Points 1. Stout triangular stem with grass -like leaves. 2. Brown to black, round tubers at the ends of slender rhizomes. 3. Yellowish, triangular, flattened, and oblong seeds. 4. Leave - like bracts under the inflorescence. List B Integrated Weed Management Recommendations Prevention is the best control for yellow nutsedge. Avoid soil disturbances and introduction from contaminated equipment or nursery material. Once established, it is difficult to eliminate because herbicides don't effective kill the plant or tubers. Young plants can be hand pulled before they form tubers and pulling can deplete energy stored in the roots. r xc a .ate , ,-,r,- _ r ,z' "" x, f y7 . - CULTURAL The best control method is preventing the establishment of new infestations by minimizing disturbance, preventing tuber and seed dispersal by cleaning equipment, carefully inspecting plantings from nurseries, eliminating seed production, and maintaining healthy native communities. Yellow nutsedge can penetrate and grow through black polyethylene plastic. It it DJ" ': {,L " r � . I�' 17 I{ -,t BIOLOGICAL In cultivated field, pigs and chickens can effectively grub and feed on tubers. However, there are no other biocontrol agents available for yellow nutsedge. Biocontrol takes many years of research and development. For more information on biocontrols, contact the Colorado Department of Agriculture's Insectary in Palisade, Colorado at 970-464-7916. \V vt 1} `? �; a - '" = - ,, ..�, _, . s` __ _ I _ 44 -- � -ems MECHANICAL Hand pull small nutsedge plants when they have less than 6 leaves, which is before tubers form. This is approximately every z to 3 weeks during the growing season; over time, this will deplete energy reserves in the roots. Tilling can potentially spread tubers. = c: N L N Q U O , �? - 4 ;�, :- = Y►"� "` , ` „__°fi�t ..44 `M _ , '� ," CHEMICAL Not many herbicides are effective at controlling yellow nutsedge because they lack selectivity or uptake, and most are not effective on tubers. The table below includes recommendations for herbicides that can be applied to turf, range, and pastures. Always read, understand, and follow the label directions. The herbicide label is the LAW! W Updated: 07/2015 Herbicide Rate Application Timing Aminocyclopyrachl or+ Chlorsulfuron (Perspective) 4.75-8 oz. product/acre + 0.25% non-ionic surfactant Apply at bolting to bud growth stages. (Spring to early summer) IMPORTANT: Applications greater than 5.5 oz. product/acre exceeds the threshold for selectivity. DO NOT treat in the root zone of desirable trees and shrubs. Not permitted for use in the San Luis Valley. Not for use on grazed or feed forage. Aminopyra lid + Metsulfuron (Opensight) 2.5-3 oz. product/acre + 0.25% non-ionic surfactant Apply at bolting to bud growth stages. (Spring to early summer) Not permitted for use in the San Luis Valley. See label regarding grazed or feed forage. Metsulfuron (Escort XP) + 2,4-D 1 oz. product/acre + 1 qt. 2,4-D/acre + 0.25 %v/v non-ionic surfactant Apply at bolting to bud growth stages. (Spring to early summer) May stunt grass growth. Additional herbicide recommendations for this and other species can be found at: www.colorado.gov/agconservation/CSUHerbicideRecommendations.pdf Colorado Department of Agriculture - Conservation Services D A 3o5 Interlocken Parkway do � Broomfield, CO 800zi CO fy (303) 869-9030 University www.colorado.gov/ag/weeds Rangeland -Pasture Recommendations Yellow Toadflax Identification and Management Yellow toadflax (Linaria vulgaris) is a non-native deep-rooted perennial that spreads by seeds and aggressive, creeping, horizontal roots. Roots can grow 3 or more feet deep with lateral roots extending several yards from the parent plant. Yellow toadflax stems are smooth, erect, leafy, often clumped, and 1 to 21/2 feet tall. The leaves are pale green, alternate, narrow, pointed at both ends and are about two and one-half inches long. The flowers grow at the base of upper leaves, usually clustered at the top of each stem. The flowers are snapdragon -like in appearance, are yellow with an orange throat and a straight to slightly curved spur. Yellow toadflax seeds usually germinate in May in Colorado. However, shoots from root buds may emerge as early as mid -March. Yellow toadflax typically begins flowering in mid- to late May and, under optimal conditions, may continue to flower into September. A mature yellow toadflax plant may produce up to 500,000 seeds per year. Most seeds germinate the following spring. These seeds may lie dormant in the soil for as long as 10 years. First year plants can produce 90 to 100 secondary shoots from the roots. The combination of prolific seed production and rapid root expansion makes yellow toadflax a formidable invader. The key to controlling yellow toadflax is to eliminate seed production and also to reduce the plant's nutrient reserves in its root system through persistent, long-term management. Yellow toadflax, a member of the Figwort family, sometimes is called "butter and eggs" or "wild snapdragon". Yellow toadflax is a native of Eurasia where it was used to make fabric dyes and for medicinal purposes. It was originally introduced as an ornamental and now is considered an invasive plant throughout much of the United States. It thrives in a variety of soils and climatic conditions and is a strong competitor. Once established, even sites in excellent condition will do little to stop its spread. Combining control measures for yellow toadflax is imperative. The weed needs to be continually stressed, forcing it to exhaust root nutrient stores and eventually die. Of all control methods, prevention is the most important. Maintain healthy pasture and rangeland and continually monitor your property for new infestations. Below are yellow toadflax management recommendations. If you have any questions, please contact the Weld County Public Works Dept., Weed Division at (970) 304-6496 ext. 3770. Please visit our website at www.weldweeds.org Recommended management methods: Cultural - Establishment of selected, aggressive grasses can be an effective cultural control of yellow toadflax. Contact your local CSU Extension office or Natural Resources Conservation Service office for seed mix recommendations. Good grazing management will stimulate grass growth and keep pastures healthy. Healthy pastures may be more resistant to yellow toadflax invasion. Bare spots caused by overgrazing are prime habitat for weed infestations. Mechanical - Hand -pulling this plant can be useful especially for small infestations in sand or with wetter soils. Pulling must be repeated several times a year for up to 10 to 15 years to be sure the root stock and seed bank is depleted. Mowing is not recommended as it stimulates more plants to grow from the roots. Mowing combined with herbicide application does not improve control. Biological - There are several different biological control agents being used, but the success of the agents is yet to be determined. Contact the Colorado Department of Agriculture Insectary in Palisade to learn more. Please call 970-464-7916 or go to www.palisadeinsectary.com for detailed information. Herbicides - The following are recommendations for herbicides that can be applied to range and pasturelands. Testing of additional chemical options is on going. Always read, understand, and follow label directions. The herbicide label is the LAW! Herbicide Rate Application Timing/Comments Plateau 8 oz/acre or 0.4 oz/gal Fall application prior to a hard freeze is optimum. Can also make application during early flower stage. Add a methylated seed oil surfactant (MSO) at 0.32 oz/gal water or 1 qt/100 gal water. 12 oz rate may cause injury to some cool season grasses. Can safely be used under trees. Tordon 22K *this is a Restricted Use Pesticide* 1 qt./acre or 1.0 oz/gal water Apply at flowering for several consecutive years. DO NOT apply near or under trees or where soils have rapid permeability or where water level is high. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Telar XP 1.5 to 2.6 oz/acre Non -crop areas. Apply during flowering and in the fall. Add a non-ionic surfactant @ 0.32oz/gal water or 1 qt/100 gal water. Round -up Ultra 2 qt/acre or 2 oz/gal water Apply prior to flowering or in the fall with spray directed at the toadflax plants only. Round -up will kill all vegetation it contacts. Add a non-ionic surfactant @ 0.32oz/gal water or 1 gt/100 gal water. APPENDIX B Weed Inventory Report (PLACEHOLDER) APPENDIX C Completed Vehicle and Equipment Inspection Logs (PLACEHOLDER) ATTACHMENT D Exhibit F-1: Reclamation Plan Map �iv* - 0 - 0 ATTACHMENT E Well and Pond Locations and Pipeline Routing Options PROCESS DISCARD Y - STOCKPILE (PDS): 60 ACRES INL°TrI(SAINING, PLANT OPERATIONS, PROCESSING, OBLIGES AND REPAIR FACILITIES uR (zs) Nouns PER DAY, WITHOUT RESTRICHON ER BOARD OF GOON, mMMISSIONERS APPROVAAL) THE OPERATE MAY PERATE SEVEN (2) DAYS PER PRAIRIE DOG TOWNS FROM 3. VISITOR ACCESS TO MINE SHALL BE LIMITED BY WELLS RANCH GUARDSHACN AND SECURITY GATES AT MINE ENTRANCE/EXIT. 4 EXISTING WELL TO BE PLUGGED AND ABANDONED OR MINE SEQUENCE AREA S TEPO TO BE USED IN RECLAMATION BY THE END OF YEAR B. 1000 000 0 1000 8000 Seal : I. = 1000' SYMBOL LEGEND REINFORCED CEMENT CONCRETE PROPOSED WE PROPOSPDGRAVPL xnULPOA0 OMURA) 1 RAIALDIE SEPIIKILB 2024 1I'UIll 1 COLORADO SAND COMPANY U. LLC RBRSNY MINI WELL AND POND LOCATIONS AND PDMINI ROUTING OPTIONS ' 'MC TRC ENVIRONMENTAL CORP. 13011419 3A3) ORAPYR 2,0 CLOCKER BO ORRAIRWSSI ATTACHMENT F Letter to Jason Surface, CPW District Area Wildlife Manager No, 123 N. College Ave., Ste, 370 T 970.484.3263 Fort Collins, CO 80524 TRCcompanies.com February 8, 2024 Jason Surface Area Wildlife Manager Colorado Parks and Wildlife Fort Collins Office 317 West Prospect Road Fort Collins, Colorado 80526 Sent via email to: jason.surface@state.co.us RE: Colorado Sand Company LLC — Kersey Mine Project Project Review and Request for Concurrence Mr. Surface, Colorado Sand Company LLC (CSC) is seeking assistance with identifying developmental constraints for the Kersey Mine Project (Project), a proposed surface pit sand and gravel mine located on approximately 4,018 acres in Weld County, Colorado (Project Area; Figure 1). The Project is located within privately owned open -range lands that have been developed for oil and gas production north of County Road 388 and east of County Road 61 approximately 6.5 miles east -north-east of the Town of Kersey, Colorado. The Project is located within public land survey system Township 5 North, Range 63 West, Sections 2, 3, 10, 11, 14, 15, and Township 6 North, Range 63 West, Section 34. TRC completed a Project -specific desktop analysis and field survey on October 16 and 20, 2023 to identify critical development issues. The following biological resources were identified within the Project Area: • Based on the field survey, the Project Area consists of grasslands and is used for fossil fuel extraction. Existing oil and gas infrastructure on site includes numerous building facilities, equipment, pipelines, and access roads. • No wetlands were identified within the Project Area. One 0.38 -acre manmade stock pond was observed within the Project Area. The pond was dry at the time of the survey. • The CPW Threatened and Endangered Species List identifies 31 state -listed threatened and endangered species including 1 amphibian species, 8 bird species, 14 fish species, and 8 mammal species. Based on an assessment of each species' habitat requirements, range, and distribution, suitable habitat for one state -listed species, the burrowing owl, is present within the Project Area. Two burrowing owls were observed within two separate prairie dog towns (one within the Project Area and one approximately 0.5 miles west of the Project Area) during the survey. • No High Priority Habitat is present within the Project Area. TRC, on behalf of CSC, requests CPW's review and concurrence of the state -listed species findings. CSC will coordinate with CPW to develop applicable avoidance and minimization measures, where required. If species -specific surveys are recommended, please provide preferred survey methodology. Project -specific shapefiles have been provided to assist in your review. Jason Surface February 8, 2024 Page 2 of 2 If you have any questions regarding this request, please contact me at (970) 214-3338 and plorenz@trccompanies.com. Thank you in advance for your prompt response to this request. Sincerely, Patti Lorenz Senior Environmental Specialist Enclosures: Figure 1 (Project Overview); Shapefiles cc: Brady Reece (CSC) Tim McCarthy (Tamarack Consultation) Karen Baud (TRC) Grant Waldie (TRC) TRC 5+5,E}!Kr 'KC run PROW COLORADO SAND COMPANY, MERSEY MINE WELD COUNTY, COLORADO — PROJECT AREA i 54V rn Ltri Hk TALE PROJECT AREA LOCATION [WARY BY A CLINE OACTLEDB ;PROVED E.' R JENKIN5 MOO ND 535891 B TRACY FIGURE 7 IdAI W1E' ocTD9ER N7] BASE MAP USCS TORO. MAP DATA SOURCES TRC ►(ti B Y.fAO "D /`�Q►�5 � FEET 1 MOOD i' = 4.000 tir "MC 1538 COLE BOULEYARO BUILDING] SUITE 150 LAKEW0OD CO 80401 PHONE ]0] 197 5555 r9E OMC0MG5wOCC P30PD54. ATTACHMENT G Correspondence and Settlement Agreement between Chevron and CSC Krajewski, Dustin From: Sent: To: Cc: Subject: Attachments: Hayes, Christopher <ChristopherHayes@chevron.com> Tuesday, September 17, 2024 2:04 PM Brady Reece; Krajewski, Dustin; Waldie, Grant; DeRose, Brian [PDC Energy] Chalegne O'Brien RE: [EXTERNAL] RE: Updated Draft Indemnity & Release Agreement Noble - Colorado Sand Company - Indemnity and Release Agreement (Noble Draft 16 September 2024).docx This is an External email. Do not click links or open attachments unless you validate the sender and know the content is safe. ALWAYS hover over the link to preview the actual URL/site and confirm its legitimacy. Brady: We're just waiting on approval from our Environmental Affairs Manager. In the meantime, attached is an updated draft of the agreement that integrates all of the Exhibits into a single word document. I've also added a placeholder for the "Effective Date" in the introductory paragraph. Will keep you posted, CMH From: Brady Reece <breece@capitalsand.com> Sent: Tuesday, September 17, 2024 1:38 PM To: Krajewski, Dustin <DKrajewski@trccompanies.com>; Hayes, Christopher <ChristopherHayes@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] Re: [EXTERNAL] RE: Updated Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Chris and Brian, Do you have any additional questions on the document? From our perspective, we are good with the agreement as written. Please let us know when the document has been sent out for signatures. Thank you. Best, Brady Brady Reece I (970) 978-9858 1 From: Krajewski, Dustin <DKrajewski@trccompanies.com> Sent: Friday, September 13, 2024 10:52:24 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Brady Reece <breece@capitalsand.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: RE: [EXTERNAL] RE: Updated Draft Indemnity & Release Agreement All, Please see the updated agreement with CSC information and all exhibits (Exhibit B included as separate attachment). Please let us know if you need anything else. Thanks, Dustin Krajewski, PE Program Manager / Market Director Environmental Engineering, Construction & Remediation 1526 Cole Blvd, Bldg 3, Ste 150, Lakewood, CO 80401 lir T: 303.395.4072 I T� Cell:970.214.0548 dkral wsk CcDt ccompan es com Linkedln I Twitter I Bloq I TRCcompanies.com From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Friday, September 13, 2024 10:42 AM To: Brady Reece <breece@capitalsand.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [EXTERNAL] RE: Updated Draft Indemnity & Release Agreement This is an External email. Do not click links or open attachments unless you validate the sender and know the content is safe. ALWAYS hover over the link to preview the actual URL/site and confirm its legitimacy. Brady: One follow-up question: do you have a final version of the Facility specifications that we'll need to insert in Exhibit B? I want to make sure that we have the most recent version before we seek final approvals. Thanks! CMH From: Brady Reece <breece@capitalsand.com> Sent: Friday, September 13, 2024 7:02 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] Re: Updated Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. 2 Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Thanks Chris. This version works for us. What is the timeline on your side for final approvals and execution? Best, Brady Brady Reece I M: (970) 978-9858 From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Thursday, September 12, 2024 10:36 AM To: Brady Reece <breece@capitalsand.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: RE: Updated Draft Indemnity & Release Agreement Brady: Attached is the revised draft. Please have a look and let me know if this version works. If yes, we can move to final approvals and execution. Many Thanks, CMH From: Brady Reece <breece@capitalsand.com> Sent: Thursday, September 12, 2024 10:17 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Waldie, Grant <GWaldie@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] RE: Updated Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Chris, I wanted to follow up on our call Tuesday and see if you had any additional language questions. Best, Brady 3 From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Tuesday, August 13, 2024 5:26 PM To: Brady Reece <breece@capitalsand.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.gilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: RE: Updated Draft Indemnity & Release Agreement Brady: Brian and I had a chance to sit down and review the latest mark-up to the Indemnity and Release Agreement. I think we are largely aligned, but we did want to reinstate the provision about abandoned wells. We've offered some clarifying language that might help make our intentions more clear. Happy to set aside some time discuss. Thanks, CMH Christopher Hayes Senior Counsel christopherhayes@chevron.com Chevron U.S.A. Inc. Chevron Rockies Business Unit 109918th Street, Suite 1500 Denver, CO 80202 720.201.7654 From: Brady Reece <breece@capitalsand.com> Sent: Wednesday, July 31, 2024 9:22 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.Rilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com> Cc: Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] Re: Updated Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Chris, Please see attached our redlined version of the agreement. We have accepted a majority of the changes. One exception is the Abandoned Well provision. We had some confusion on if this related to wells already P&A or ones that are active now and to be removed at a later date. Please let us know if you have time to jump on a call to discuss. Thank you. 4 Best, Brady Brady Reece I M: (970) 978-9858 From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Monday, May 13, 2024 11:22 PM To: Krajewski, Dustin <DKrajewski@trccompanies.com>; Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.gilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com>; Brady Reece <breece@capitalsand.com> Cc: tmccarthy <tmccarthy@tamarackconsultingllc.com>; Chalegne O'Brien <cmo@farmercompanies.com> Subject: Updated Draft Indemnity & Release Agreement Dustin: Thanks for your patience while I gathered input from the Chevron team. Attached is a revised draft of the Indemnity Agreement for your review. I started by accepting all of the proposed changes from CSC and then marking up the provisions where we still have some work to do. I've left a series of comments to help explain our thinking on some of the key issues. I think we've made solid progress, but it may be helpful to schedule some time for the group to discuss the remaining mark-ups. My calendar is filled up tomorrow and Wednesday but I have flexibility on Thursday. Otherwise, we can pick a day next week. Many Thanks, CMH Christopher Hayes Senior Counsel 5 christopherhayes@chevron.com Chevron U.S.A. Inc. Chevron Rockies Business Unit 109918th Street, Suite 1500 Denver, CO 80202 720.201.7654 From: Krajewski, Dustin <DKrajewski@trccompanies.com> Sent: Monday, April 29, 2024 11:05 AM To: Hayes, Christopher <ChristopherHayes@chevron.com>; Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.gilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com>; Brady Reece <breece@capitalsand.com> Cc: tmccarthy <tmccarthy@tamarackconsultingllc.com>; Chalegne O'Brien <cmo@farmercompanies.com> Subject: [**EXTERNAL**] RE: [EXTERNAL] Draft Indemnity & Release Agreement Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Hi Chris, Thanks again for sending this agreement over. Please see the attached redlined agreement for edits form Colorado Sand Company. If there are concerns based on our review, we would like to schedule a call to discuss those. Can you provide a few days/times you are available later this week (if possible) and we will schedule a meeting around that? Thank you, Dustin Krajewski, PE Colorado Practice Leader Environmental Engineering, Construction & Remediation 6 TR 1526 Cole Blvd, Bldg 3, Ste 150, Lakewood, CO 80401 ■ T: 303.395.4072 Cell: 970.214.0548 dkrajewski(a�trccompanies.com LinkedIn Twitter I Blog TRCcompanies.com From: Hayes, Christopher <ChristopherHayes@chevron.com> Sent: Tuesday, April 16, 2024 9:02 AM To: Jacobs, Eric <EJacobs@trccompanies.com>; Gilmore, Brian <brian.Rilmore@chevron.com>; Eggert, Derek <DHYG@chevron.com>; Waldie, Grant <GWaldie@trccompanies.com>; Krajewski, Dustin <DKrajewski@trccompanies.com>; Penate, Erick <EPenate@trccompanies.com>; DeRose, Brian [PDC Energy] <Brian.DeRose@chevron.com>; Brady Reece <breece@capitalsand.com> Subject: [EXTERNAL] Draft Indemnity & Release Agreement This is an External email. Do not click links or open attachments unless you validate the sender and know the content is safe. ALWAYS hover over the link to preview the actual URL/site and confirm its legitimacy. All: As discussed during our call, I've prepared a draft "Indemnity and Release Agreement" that will reinforce safety and foster communication between Chevron and CSC while both parties pursue their respective operations on the Wells Ranch property. Happy to discuss in detail once you've had a chance to review. Thanks, CMH Christopher Hayes Senior Counsel christopherhayes@chevron.com Chevron U.S.A. Inc. 7 Chevron Rockies Business Unit 109918th Street, Suite 1500 Denver, CO 80202 720.201.7654 8 SETTLEMENT AGREEMENT AND RELEASE This SETTLEMENT AGREEMENT AND RELEASE ("Agreement") effective as of [INSERT DATE] (the "Effective Date") is between Noble Energy, Inc., a Delaware corporation ("Chevron"), and Colorado Sand Company II, LLC, a Delaware limited liability company ("Operator"). RECITALS A. WHEREAS, Operator possesses a leasehold interest for the lands in Weld County, Colorado described in Exhibit A to this Agreement, said lands referred to herein as the "Property", which property is owned by Wells Ranch, LLLP ("Wells Ranch"): B. WHEREAS, Operator intends to develop on the Property a sand mine facility (the "Facility") as detailed in Exhibit B to this Agreement that will include excavating and material transporting equipment, wet processing equipment, dry processing equipment and loadout facility C. WHEREAS, the Property is located within and adjacent to lands (the "Adjacent Lands") owned by Wells Ranch where Chevron conducts oil and gas operations in accordance with the Surface Lease between Wells Ranch and Chevron effective as of May 18, 2012, as amended from time to time (the "Surface Lease"). D. WHEREAS, Chevron must maintain its right to access the Property and Adjacent Lands. E. WHEREAS certain installation, construction, and operational activities conducted by Operator in connection with the Facility may impact the oil & gas operations planned by Chevron. F. WHEREAS, the Parties wish to allocate liability for any future Claims related to the installation, construction, and operation of the Facility and to establish principles of cooperation to mitigate any potential impacts to health, safety, and the environment. NOW THEREFORE, in consideration of the mutual covenants and promises, the Parties agree as follows: TERMS AND CONDITIONS 1. DEFINITIONS, INTERPRETATION, AND EXHIBITS 1.1 Definitions. In this Agreement, these capitalized words or expressions have the following meanings: "Affiliates" means any legal entity that controls, is controlled by, or is under common control with, another legal entity. An entity is deemed to "control" another if it owns directly or indirectly at least 50% of the shares or interests entitled to vote. "Claims" means any claim, liability, loss, demand, damage, cost, cause of action of any kind, obligation, requirement, clean-up costs, penalty, fine, interest and award, and whether arising by law, contract, tort (including negligence), voluntary settlement, or in any other manner. "Chevron Group" means Chevron, Chevron's Affiliates, Chevron invitees, and their respective directors, officers, and employees (and excludes Chevron's contractors and their subcontractors, and their respective directors, officers, and employees). Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 1 "Environmental Documents" means any technical reports, memoranda, correspondence, and other documents regarding the Work or the environmental conditions at the Property. "Government Entity" means any department, court, tribunal, exchange, authority, commission, board, instrumentality, or agency of any municipal, local, state, federal, or other governmental authority (including regulatory authorities and administrative bodies) and any subdivision of the foregoing or any Person owned or controlled by the government. "Hazardous Material" means any chemical substance, product, waste, or other material which is, or becomes identified, listed, published, regulated, or defined as, or which shows the characteristics of, a hazardous substance, hazardous waste, hazardous material, toxic substance or other regulatory term, including oil and associated waste or byproducts and components, petroleum hydrocarbons and associated waste or byproducts, and components, produced water, polychlorinated biphenyls, naturally occurring radioactive materials, and asbestos, or which is otherwise regulated or restricted under any applicable law or by any governmental entity, or which may otherwise cause, contribute to, or result in an adverse impact to the environment or an environmental obligation. "Operator Group" means Operator, Operator's Affiliates, Subcontractors, and their respective directors, officers, employees, and any Person acting on behalf of any of them in connection with any subject matter of this Agreement. "Person" means an individual, corporation, company, association, partnership, state, statutory corporation, government entity, or any other legal entity. "Records" means mean information in any recorded form, including electronic, that relates to this Agreement. "Released Contractor" means a contractor that has entered into an agreement with Chevron (whether before or after the Effective Date) that includes release, defense and indemnity provisions that are substantially similar to those in Section 5. "Released Contractor Group" means a Released Contractor and its subcontractor of any tier. "Remediation" or "Remediate" means environmental investigation, assessment, monitoring, removal, remediation, corrective action, response action, mitigation, treatment, decontamination, or cleanup. "Subcontractor" means any Person who is engaged by Operator or any subcontractor or subsupplier of any tier to provide Services (other than an employee of Operator). "Subsequent Operator" means any person or persons taking title to the Property. 2. PERMITTING AND AGENCY COMMUNICATIONS 2.1 Operations at the Proposed Facility. Operator warrants that the Facility will not substantially deviate from the specifications included in Exhibit B, attached hereto. In the event that Operator intends to modify the design of the Facility in a manner that would be reasonably expected to impact: (i) oil & gas operations conducted by Chevron on the Adjacent Lands; or (ii) the health, safety, and environment of the Property, the Adjacent Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 2 Lands, and any personnel of Operator Group or Chevron Group, Operator shall provide written notification to Chevron that includes a summary of the planned modifications. Upon Chevron's written notification, Operator shall provide any data reasonably requested by Chevron to evaluate potential impacts of the design modifications to its surface or subsurface oil & gas operations as well as any potential impacts that might affect Chevron's ability to comply with applicable regulations. 2.2 Permitting. Operator will provide Chevron with copies of any permit applications, environmental assessment reports, technical reports, or other Environmental Documents related to permitting operation or construction of the Facility at least 10 business days prior to submission to a Governmental Entity. Operator shall provide a copy of any permits or authorizations issued and obtained for the Facility. Operator will also notify Chevron reasonably in advance of any proposed changes to the Facility that will substantially modify any permits or authorizations obtained for the Facility. 2.3 Air Emissions. Operator recognizes that Chevron has an obligation under federal and state regulations, including Colorado Regulation No. 7, to monitor air quality and the air emissions of its operations and to submit regular reports to Governmental Entities regarding air emissions. Operator and Chevron shall reasonably cooperate and assist each other in fulfilling obligations relating to current and future air emissions requirements, monitoring and reporting under applicable Environmental Laws. 2.4 Notice of Environmental Conditions. (A) If, during the permitting, construction, or operation of the proposed Facility, Operator becomes aware of a condition pertaining to the Property, Adjacent Property or Facility that could be considered a release of Hazardous Materials, a violation of any applicable Law pertaining to health or the environment ("Applicable Environmental Laws"), that could require notice or reporting to a Governmental Entity under Applicable Environmental Laws, or that could give rise to a Claim for property damages, however caused, then Operator shall immediately notify Chevron in writing and promptly provide Chevron a copy or any notice or communication provided by Operator to any Governmental Entity regarding said condition. (B) If Chevron becomes aware of a release of Hazardous Materials that originates or emanates from its oil and gas facilities on the Property or the Adjacent Property that could: (i) impact the Facility; (ii) be considered a violation of Applicable Environmental Laws that could require notice or reporting to a Governmental Entity under Applicable Environmental Laws; or (iii) give rise to a Claim for property damages, however caused, then Chevron shall immediately notify Operator in writing. 2.5 Notice of Potential Violations. (A) Operator shall give prompt written notice to Chevron of: (1) Any notice, proceeding, or regulatory or enforcement action in connection with a release of Hazardous Materials that may result in Operator conducting Remediation under an applicable Environmental Law; Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 3 (2) Exceedances of limitations set on air emissions that are enforceable under Environmental Law, including permit or regulatory thresholds. (B) Chevron shall give prompt written notice to Operator of: (1) Any notice, proceeding, or regulatory enforcement action in connection with a release of Hazardous Materials that may result in Chevron conducting Remediation on the Property. 2.6 Cooperation with Information Requests. Each Party agrees to reasonably cooperate with the other Parry and provide, upon the other Party's reasonable request, environmental assessments, audits, investigations, testing, sampling, analysis, or other information related to notices provided under this Section 2. 3. SAFETY AND MAINTENANCE REQUIREMENTS 3.1 Safety Management System. Prior to the initiation of construction activities associated with the Facility, Operator shall provide Chevron with a copy of its safety management system for the Facility that addresses all applicable safety and emergency procedures, including the drug, alcohol, and road vehicle search procedures. 3.2 Shared Road Use. (A) The Parties currently use or intend to use and maintain access roads, all or portions of which were constructed and/or have been maintained by the Parties and/or their predecessors in interest (the "Road") that allows Chevron to access various oil and gas wells and facilities associated with the Surface Lease. The Parties shall share the Road as specifically shown on Exhibit C to facilitate installation, construction, and operation of the Facility while Chevron carries out oil and gas operations. (B) The Parties shall equally share all costs and expense necessary to maintain the Road in a condition which, in the Parties' reasonable judgment, will allow safe and convenient passage for, including but not limited to, the vehicles of Operator Group and Chevron Group any other contractors employed by any member of Chevron Group. Routine maintenance of the Road shall include shared mowing and weed control, snow plowing and grading the surface to provide for proper drainage and pothole and washout repair ("Routine Maintenance"). (C) If a Party causes unusual damages to the Road that cannot be corrected by Routine Maintenance, then the Party causing such damage shall bear the entire cost to reclaim the affected portions of the Road. 3.3 Setbacks. Operator shall not conduct operations within 150 feet from any wells or facilities operated by Chevron. In addition, Operator shall not conduct operations within 50 feet of any flowlines or midstream infrastructure operated by any member of Chevron Group. 3.4 Abandoned Wells. In the event that Operator wishes to lower the height of an abandoned wellhead on the Property, it shall provide written notice to Chevron. Chevron shall complete the requested removal operations within 240 days after receipt of such written Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 4 notice. Operator shall reimburse Chevron for all documented costs associated with the removal operations. In the event Chevron is not able to complete such removal within the 240 -day period it shall give written notice to Operator. If Operator receives such written notice, or if the work is not completed within said 240 -day period, Operator shall have the right (but not the obligation) to perform the removal operation by hiring a third -party contractor reasonably experienced in such work so long as Operator gives Chevron at least thirty (30) days advance written notice that it will be commencing said well removal work. Before commencement of the work by a third -party contractor, Chevron must provide its written consent, which consent shall not be unreasonably withheld. 3.5 Simultaneous Operations. (A) Operator shall notify Chevron in the event that it intends to conduct simultaneous operations that could be reasonably expected to affect Chevron's existing oil and gas operations around the Property. In no event shall Operator interrupt Chevron's use of the Road or fracking operations. (B) Chevron shall notify Operator in the event that it intends to conduct simultaneous operations that could be reasonably expected to affect: (i) Operator's construction or mining operations on the Property; or (ii) Operator's ability to access or use the Road. In no event shall Chevron prevent Operator's use of the Road or prohibit Operator's ability to transport sand off the Property. (C) Operator shall notify Chevron in the event it becomes aware of any conditions or changes in operation that could reasonably be expected to adversely affect Chevron's existing oil and gas operations in or around the Property, including, but not limited to: (i) Chevron's ability to access or use the Road; or (ii) changes or additions to the proposed mining operations. Such notice shall be delivered to Chevron within 12 hours after Operator becomes aware of the conditions or changes in operation that could impact Chevron's oil and gas operations and shall include a summary of the event or condition, the potential safety concerns, and the estimated time necessary for Operator to resume normal operations. (D) Chevron shall notify Operator in the event it becomes aware of any conditions or changes in operation that could reasonably be expected to adversely affect Operator's construction or mining operations in or around the Property, including, but not limited to Operator's ability to access or use the Road. Such notice shall be delivered to Operator within 12 hours after Chevron becomes aware of the conditions or changes in operation that could impact Operator's operations. 4. INDEMNIFICATION 4.1 Operator Indemnification. (A) Operator specifically assumes and shall be responsible for the physical and environmental condition of the Property and all environmental obligations related to the operations and activities of the Facility, as well as any wellhead abandonment operations it undertakes in accordance with Section 4.1. Operator shall release, indemnify, and defend Chevron Group from and against any Claims arising from the operations and activities of the Facility, including Claims Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 5 involving any actual, proposed, or threatened use, treatment, storage, holding, existence, disposition, release, generation, production, manufacturing, processing, refining, control, management, abatement, removal, handling, transfer, or transportation to or from the Adjacent Land or Property of any Hazardous Materials, and other substances, pollutants or contaminants, arising under any Applicable Environmental Laws, regardless of whether existing prior to, as of, or after the Effective Date, or whether the Claim is known or unknown, foreseeable or unforeseeable, except to the extent such Claims are due to the fault of Chevron. (B) Operator shall, and shall cause that all of Operator's future assignees and successors release, indemnify, and defend Chevron from and against any and all Claims related to the environmental condition, operations and activities of the Facility regardless of whether existing prior to, as of, or after the Effective Date, attributable or relating to any period before or after the Effective Date, or whether the Claims is known or unknown, foreseeable or unforeseeable. 4.2 Chevron Indemnification. (A) Chevron shall release, indemnify and defend Operator from and against any Claims arising from its oil and gas operations that impact the Facility, including Claims involving any actual, proposed, or threatened use, treatment, storage, holding, existence, disposition, release, generation, production, manufacturing, processing, refming, control, management, abatement, removal, handling, transfer, or transportation to or from the Adjacent Land or Property of any Hazardous Materials, and other substances, pollutants or contaminants, arising under any Applicable Environmental Laws, regardless of whether existing prior to, as of, or after the Effective Date, or whether the Claim is known or unknown, foreseeable or unforeseeable, except to the extent to the extent such Claims are due to the fault of Operator. (B) Chevron shall, and shall cause that all of Chevron's future assignees and successors release, indemnify, and defend Operator from and against any and all Claims related to the environmental condition, operations and activities of Chevron on the Adjacent Land and Property regardless of whether existing prior to, as of, or after the Effective Date, attributable or relating to any period before or after the Effective Date, or whether the Claims are known or unknown, foreseeable or unforeseeable. 4.3 Third Party Property If damage is suffered or loss is incurred in relation to property of any Person who is not a member of Chevron Group, Operator Group, or Released Contractor Group where that damage or loss arises out of this Agreement, liability for Claims associated with such damage or loss shall be apportioned as at law and the Party, if any, found responsible at law shall indemnify the other Party from such Claims to the full extent of the responsible Party's liability at law. 4.4 Limitation on Class of Damages. (A) Chevron and Operator mutually waive and release to the fullest extent permitted by applicable law, all of the following Claims for damages arising out of this Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 6 Agreement, whether such Claims are made in connection with an indemnity, a breach of any obligation under this Agreement, or any other Claim. (1) Indirect, special, or consequential damage or loss. (2) Loss of profits, loss of production (including production of petroleum or petroleum products), loss of economic advantage or benefit, or loss of business opportunity, in each case whether direct, indirect, prospective, or actual. (3) Punitive or exemplary damages. (B) The limitations provided in Section 4.4(A) only apply to damages or losses suffered by a member of Chevron Group or Operator Group. The limitations provided in Section 4.4(A) do not apply to Claims for damages or losses suffered by third parties. 4.5 When a Party indemnifies any member of Chevron Group or Operator Group against Claims, the indemnifying Party shall defend, and hold the indemnified Party harmless against those Claims and against all reasonable costs, expenses and fees of any kind (including attorneys' fees) incurred by indemnified Party in defending those Claims, and any tax imposed on the indemnified Party as a consequence of receiving a payment under this Section 4. 4.6 A Person seeking to rely on an indemnity has the right to reasonably object to counsel selected by the indemnifying Party and select alternative counsel at the cost of the indemnifying Party. 5. CHEVRON RELEASE 5.1 RELEASE. In exchange for the consideration that Operator is providing under this Agreement, Chevron on behalf of itself and its Affiliates waives any right it holds to submit public comments, appeal, seek judicial or regulatory review, or otherwise interfere with Operator's permitting efforts for the Facility. 6. MUTUAL RELEASE AND INDEMNITY BETWEEN OPERATOR AND RELEASED CONTRACTORS 6.1 RELEASE, DEFENSE AND INDEMNITY OBLIGATIONS. Operator releases, defends and indemnifies each member of Released Contractor Group against all Claims in relation to the following: (A) Injury, death or disease of any employee or personnel of a member of Operator Group where the injury, death or disease arises out of this Agreement or the Released Contractor's contract. (B) Damage to or loss of Operator Group's Property, where the damage or loss arises out of this Agreement or the Released Contractor's contract. Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 7 6.2 Operator shall include a provision substantially similar to this Section 6 in its contracts with Subcontractors whereby Subcontractors assume similar release, defense and indemnity obligations in favor of each member of a Released Contractor Group. 6.3 Chevron incurs no obligation under this Section 6 to Operator, any Released Contractor or any other Person. Operator defends and indemnifies Chevron from any Claims arising out of this Section 5. 6.4 Chevron shall, upon request, provide Operator reasonable assistance and information so that Operator may verify that Chevron's other contractors entering the Property identified in writing by Operator are Released Contractors as defined in Section 6.1. Operator has the right to exclude from the Property the personnel and/or real property of any of Chevron's other contractors that cannot be confirmed to be members of a Released Contractor Group or have not executed a separate mutual hold harmless agreement ("MHHA") with Operator on terms acceptable to Operator. Operator shall not unreasonably exclude any of Chevron's other contractors, and if requested, shall specify the reason for any exclusion in writing. Notwithstanding the foregoing, Chevron shall have the right to require Operator to allow the personnel and/or real property of a contractor that is not a Released Contractor or member of a Released Contractor Group or has not signed a MHHA access to the Property by notifying Operator in writing that Chevron agrees that such other contractor will be deemed to be a member of Chevron Group for purposes of Section 5.2 of this Agreement. Chevron incurs no other obligation under this Section 5 to Operator, any Released Contractor or any other Person. Operator indemnifies Chevron against any Claims arising out of this Section 5, except where such other contractor has been deemed a member of Chevron Group, in which case the provisions of Section 5.2 shall apply. 7. INSURANCE 7.1 Insurance Required of Operator. Operator shall maintain the following insurance and all other insurance required by applicable law. Nothing contained under Section 7, nor the actual amounts of insurance maintained by Operator or its Subcontractors, shall limit or reduce Operator's liability and indemnity obligations under this Agreement. (A) Workers' Compensation and Employer's Liability Insurance as prescribed by applicable laws in the State of Colorado. (B) Commercial General Liability (Bodily Injury and Property Damage) Insurance, including the following supplemental coverages: Contractual Liability to cover the liabilities assumed in this Agreement; Products and Completed Operations; Explosion, Collapse and Underground Hazards; and Sudden and Accidental Pollution. The policy limits must not be less than US$10,000,000 or its currency equivalent per occurrence. (C) Automobile Bodily Injury and Property Damage Liability Insurance extending to all vehicles utilized by Operator Group in connection with the installation, construction, and operation of the Facility. The policy limits for this insurance must be the higher of the amount required by applicable laws or US$1,000,000 or its currency equivalent combined single limit per occurrence. Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 8 8. GOVERNING LAW AND RESOLUTION OF DISPUTES 8.1 Governing Law. This Agreement is governed by and interpreted in accordance with the law of the State of Colorado, without regard to its choice of law rules, except that the substantive and procedural rules of the Federal Arbitration Act, 9 U.S.C. §§ 1-16 govern Section 8.2 (Resolution of Disputes). 8.2 Resolution of Disputes. The Parties shall exclusively and finally resolve any dispute between them using direct negotiations, mediation, and arbitration as set out in this Section 8.2. If any dispute arises out of this Agreement, either Parry may initiate the dispute resolution process by giving notice to the other Party. If a dispute cannot be resolved by direct negotiation, either Party may initiate mediation by giving notice to the other. Mediation must be attended by a representative from each Party with decision -making authority. All mediation fees and costs must be paid equally and each Party shall bear its own attorneys' fees and costs in connection with such mediation. If the Parties fail to resolve the dispute through mediation, or if absent an agreement between the Parties on an alternative schedule for the mediation, the dispute remains unsolved after 90 days from the date of written notice initiating the dispute resolution process, either Party may initiate binding arbitration. The place of mediation and arbitration must be in the State where the Property is located. One arbitrator (or 3 arbitrators if the monetary value of the dispute is more than US$5,000,000 or its currency equivalent, or if there is a dispute whether the monetary value exceeds the US$5,000,000) will conduct the arbitral proceedings in accordance with the then existing Commercial Arbitration Rules of the American Arbitration Association ("AAA"). The arbitrator(s) must be appointed as provided in the AAA Commercial Arbitration Rules. The maximum number of witnesses each Party may call to give evidence is 3 witnesses of fact and 1 expert witness. The arbitration award is final and binding, and must be issued within 90 days from completion of the arbitration hearing. Regardless of which Party prevails, all arbitration fees and costs must be paid equally and each Party shall bear its own attorneys' fees and costs in connection with such arbitration. The Parties waive irrevocably their right to any form of appeal, review, or recourse to any court or other judicial authority under any applicable law to the extent that such waiver may be validly made. Proceedings to (A) preserve property or seek injunctive relief, or (B) enforce an award under this Section 8.2, may be brought in any court of competent jurisdiction. 9. TERM 9.1 This Agreement, and the rights and benefits granted and created herein shall be effective as of the Effective Date and shall continue in full force and effect for as long as: (i) Chevron conducts oil & gas operations and completes any reclamation activities required under applicable law on the Adjacent Lands; or (ii) Operator operates the Facility and completes all reclamation and/or remediation activities required under applicable law, whichever occurs later. 10. GENERAL PROVISIONS 10.1 Compliance Obligations. (A) Conflict of Interest. No member of Operator Group will, in connection with this Agreement (1) give to or receive from any director, employee, or agent of Chevron Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 9 or its Affiliates, any gift, entertainment, or other benefit of significant cost or value, or any commission, fee, or rebate, and (2) enter into any business arrangement with any director, employee, or agent of Chevron or its Affiliates (other than as a representative of Chevron or its Affiliates) without Chevron's prior written consent. (B) Pre -Contract Violations, Reporting Violations, and Termination. Operator represents and warrants that no event has occurred prior to the Effective Date, which if it had occurred after the Effective Date, would be a violation of Section 10.1(A) (Conflict of Interest). Operator shall immediately notify Chevron of any violation of Sections 10.1(A) or 10.1(B) . Notwithstanding any other contrary provision of this Agreement, Chevron may terminate this Agreement at any time with immediate effect for any violation of Sections 10.1(A) or 10.1(B). (C) Records and Inspection. Up until 24 months from the end of the calendar year in which this Agreement is executed, (1) Operator shall ensure that all members of Operator Group retain all Records related to this Agreement (or until expiration of the statute of limitations for taxes or import or export charges), and (2) Chevron may inspect at any time all Records to confirm that the requirements of this Agreement are met. 10.2 Taxes. Each Party is responsible for all liabilities or Claims for taxes that any taxing authority may assess or levy against that Party relating to this Agreement. 10.3 Prior Agreements. This Agreement constitutes the entire agreement and understanding between the Parties and supersedes all prior and contemporaneous representations, agreements, understandings, and commitments between the Parties concerning the subject matter of this Agreement. Each of the Parties expressly warrants and represents that no promise or agreement not contained in this Agreement has been made to it, and none of the Parties are relying upon any statement or any representation of any Party or any agent of any Party that is not contained in this Agreement. 10.4 Amendments. No amendment to this Agreement is effective unless made in writing and signed by authorized representatives of all Parties. 10.5 Notices. All notices must be in writing and delivered by mail (postage prepaid), email, or by a recognized courier service to the appropriate Party's address set out in this Agreement. Email notices must clearly state that it is a notice given under this Agreement. Notice given under Section 6 must be delivered by mail or by a recognized courier service, not by email. Notices are effective when received by the recipient during the recipient's regular business hours. Each Party may change the contact information for notices by notice to the other Party. 10.6 Counterparts. The exchange of counterpart signature pages between the Parties constitutes execution and delivery of this Agreement and it will not be necessary that the signatures of all Parties be contained on any one counterpart. No Party will be bound to this Agreement unless and until all Parties have executed a counterpart. Executed signature pages sent by facsimile, email scan, or otherwise by photocopy are valid means of delivery. Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 10 10.7 Severability and Savings. If any provision (or part of a provision, as applicable) of this Agreement is determined to be invalid or unenforceable by a court or arbitrator of competent jurisdiction, the invalidity or unenforceability will not affect the other provisions of this Agreement, and all provisions not affected by such invalidity or unenforceability will remain in full force and effect. The offending provision (or part of the provision, as applicable) will be modified to be valid and enforceable while achieving to the greatest possible extent, the economic, legal, and commercial objectives of the invalid or unenforceable provision. 10.8 Fiduciary Relationship. The Parties acknowledge and agree that Chevron will not for any reason be considered to have a fiduciary relationship with Operator. 10.9 Binding Effect. This Agreement will be binding on and inure for the benefit of the rightful successors and permitted assigns of the Parties. 10.10 Assignment and Transfer. (A) By Operator. Operator shall promptly notify Chevron of any transfer of its interest in the Property and shall provide a copy of this Agreement to any and all transferees. (B) By Chevron. Chevron may, at any time, assign or transfer all or part of its rights or obligations under this Agreement to any person without Operator's consent. 10.11 Third Party Beneficiaries. Except as otherwise expressly stated, any person who is not a Parry to this Agreement does not have any rights under this Agreement nor may such person enforce any provision in this Agreement. 10.12 Construction. Each Party has participated in the preparation of this Agreement and has had the opportunity to consult with legal counsel and any other advisors of its choice to its satisfaction regarding the terms and provisions of this Agreement. Each Parry bears its own costs incurred to prepare this Agreement. As a result, the rule of construction that an agreement be construed against the drafter will not be asserted or applied to this Agreement. 10.13 Confidentiality. The terms and conditions of this Agreement are confidential and may not be disclosed by any Party (or by their attorneys or by others acting through, under or in concert with such Party) to any other person or entity without the express written consent of the other Party except for disclosures (A) to each Party's respective officers, directors, managers, members, employees and those of its Affiliates; (B) to any attorneys, accountants, insurers and auditors of each Party; (C) to Subsequent Operators and prospective purchasers in accordance with Section 10.10; (D) as is required by court order; (E) as reasonably necessary to enforce or interpret this Agreement; or (F) as otherwise required by law The remainder of the page intentionally left blank. Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 11 IMPORTANT NOTICE: THIS AGREEMENT CONTAINS PROVISIONS REGARDING INDEMNITIES AND WARRANTIES THAT EXPRESS THE AGREEMENT OF THE PARTIES CONCERNING CLAIMS ARISING OUT OF THIS AGREEMENT. The Parties have executed this Agreement as evidenced by the following signatures of authorized representatives of the Parties: CHEVRON: OPERATOR: NOBLE ENERGY, INC. COLORADO SAND COMPANY Signature: Signature: Name: Title: Attorney -In -Fact Date: AGREEMENT NOTICES Brian DeRose Attention: Surface Land Manager Email: brian.derose@chevron.com Address: Noble Energy, Inc. 1099 18th Street, Suite 1500 Denver, CO 80202 Name: David Patterson Title: Co -President Date: AGREEMENT NOTICES Brady Reece Attention: Chief Commercial Officer Email: breece@capitalsand.com Address: Colorado Sand Company II, LLC 2001 Kirby Drive Suite 360 Houston, TX 77019 Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 12 EXHIBIT A - LEGAL DESCRIPTION Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 13 ALL OF SECTIONS 2, 3, 10, 11, 14, AND 15, TOWNSHIP 5 NORTH, RANGE 63 WEST AND THE SOUTH ONE-HALF OF THE SOUTH ONE-HALF (S1/2 OF THE S1/2) OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST OF THE 6TH PRINCIPAL MERIDIAN, COUNTY OF WELD, STATE OF COLORADO, BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: BASIS OF BEARINGS: THE WEST LINE OF THE SOUTHWEST ONE -QUARTER OF SAID SECTION 15 AS MONUMENTED AT THE SOUTHWEST CORNER OF SAID SECTION 15 BY A 3 INCH ALUMINUM CAP ON #6 REBAR STAMED "LS 4845," FROM WHICH THE WEST QUARTER CORNER OF SAID SECTION 15 AS MONUMENTED BY A 3 INCH ALUMINUM CAP ON #6 REBAR STAMPED "LS 7242, 1990" BEARS 1404'39'2TV A DISTANCE OF 2,641.96 FEET, WITH ALL BEARINGS SHOWN HEREON RELATIVE THERETO. BEGINNING AT SAID SOUTHWEST CORNER OF SAID SECTION 15, TOWNSHIP 5 NORTH, RANGE 63 WEST AS SHOWN ON THE LAND SURVEY PLAT DATED 2024 FILED IN THE WELD COUNTY CLERK AND RECORDERS OFFICE UNDER RECEPTION NUMBER 4940341; THENCE NO4'39'27"W, A DISTANCE OF 2,641.96 FEET ALONG SAID WEST LINE OF THE SOUTHWEST QUARTER TO SAID WEST QUARTER CORNER OF SECTION 15; THENCE N04°38'14"W, A DISTANCE OF 2,642,40 FEET ALONG THE WEST LANE OF THE NORTHWEST QUARTER TO THE NORTHWEST CORNER OF SAID SECTION 15; THENCE NOD°54'11"W, A DISTANCE OF 2,642,05 FEET ALONG THE WEST LINE OF THE SOUTHWEST QUARTER TO THE WEST QUARTER CORNER OF SAID SECTION 10; THENCE N00"54'36"W, A DISTANCE OF 2,642,40 FEET ALONG THE WEST LINE OF THE NORTHWEST QUARTER TO THE NORTHWEST CORNER OF SAID SECTION 10; THENCE NOD"48'02"W, A DISTANCE OF 2,639.14 FEET ALONG THE WEST LINE OF THE SOUTHWEST QUARTER TO THE WEST QUARTER CORNER OF SAID SECTION 3; THENCE NOT48'34"W, A DISTANCE OF 2,652.06 FEET ALONG THE WEST LINE OF THE NORTHWEST QUARTER TO THE NORTHWEST CORNER OF SAID SECTION 3, TOWNSHIP 5 NORTH, RANGE 63 WEST; SAID POINT ALSO BEING THE SOUTHWEST CORNER OF SAID SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST; THENCE NO1'14'00"W, A DISTANCE OF 1,323.01 FEET ALONG THE WEST LINE OF THE SOUTHWEST QUARTER OF SAID SECTION 34 TO THE NORTHWEST CORNER OF THE SOUTH HALF OF THE SOUTH HALF (S1/2 OF THE S1/2) OF SAID SECTION 34; Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 14 THENCE DEPARTING SAID WEST LIME OF THE SOUTHWEST QUARTER OF SAID SECTION 34 N89°17'34"E, A DISTANCE OF 2,639.04 FEET ALONG THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2 OF THE 51/2) OF SAID SECTION 34 TO THE CENTER -SOUTH (C -S) 1/16TH CORNER OF SAID SECTION 34; THENCE N891.7'14"E, A DISTANCE OF 2,633.94 FEET ALONG SAID NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2 OF THE S1/2) OF SAID SECTION 34 TO THE NORTHEAST CORNER OF THE SOUTH HALF OF THE SOUTH HALF (S1/2 OF THE S1/2) OF SAID SECTION 34; THENCE S00°50'34"E, A DISTANCE OF 1,330.01 FEET ALONG THE EAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST; SAID POINT ALSO BEING THE NORTHWEST CORNER OF SAID SECTION 2, TOWNSHIP 5 NORTH, RANGE 63 WEST; THENCE N89 °21'07"E, A DISTANCE OF 2,631.92 FEET ALONG THE NORTH LINE OF THE NORTHWEST QUARTER TO THE NORTH QUARTER CORNER OF SAID SECTION 2; THENCE N89°23'04'"E, A DISTANCE OF 2,630.63 FEET ALONG THE NORTH LINE OF THE NORTHEAST QUARTER TO THE NORTHEAST CORNER OF SAID SECTION 2; THENCE S01°11'04"E, A DISTANCE OF 2,641.81 FEET ALONG THE EAST LINE OF THE NORTHEAST QUARTER TO THE EAST QUARTER CORNER OF SAID SECTION 2; THENCE S01°11'04"E, A DISTANCE OF 2,655.08 FEET ALONG THE EAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 2; THENCE SO1°41'22"E, A DISTANCE OF 2,634.57 FEET ALONG THE EAST LINE OF THE NORTHEAST QUARTER TO THE EAST QUARTER CORNER OF SAID SECTION 11; THENCE SO1°41'22"E, A DISTANCE OF 2,.634,57 FEET ALONG THE EAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 11; THENCE S00°22'20"E, A DISTANCE OF 2674.74 FEET ALONG THE EAST LINE OF THE NORTHEAST QUARTER TO THE EAST QUARTER CORNER OF SAID SECTION 14; THENCE S00°24'04"E, A DISTANCE OF 2,675,41 FEET ALONG EAST LINE OF THE SOUTHEAST QUARTER TO THE SOUTHEAST CORNER OF SAID SECTION 14; THENCE S89°53'22"W, A DISTANCE OF 2,559.09 FEET ALONG THE SOUTH LINE OF THE SOUTHEAST QUARTER TO THE SOUTH QUARTER CORNER OF SAID SECTION 14; THENCE S89°36'11"W, A DISTANCE OF 2,558.71 FEET ALONG THE SOUTH LINE OF THE SOUTHWEST QUARTER TO THE SOUTHWEST CORNER OF SAID SECTION 14; THENCE S89°44'28"W, A DISTANCE OF 2,561.33 FEET ALONG THE SOUTH LINE OF THE SOUTHEAST QUARTER TO THE SOUTH QUARTER CORNER OF SAID SECTION 15; Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 15 THENCE 589°45"32"W, A DISTANCE OF 2,561.71 FEET ALONG THE SOUTH LINE OF THE SOUTHWEST QUARTER TO THE POINT OF BEGINNING. SAID DESCRIBED PERMIT PARCEL OF LAND CONTAINS 3,94756 ACRES, MORE OR LESS (+), AND IS SUBJECT TO ANY RIGHTS- OF -WAY OR OTHER EASEMENTS OF RECORD OR AS NOW EXISTING ON SAID DESCRIBED PARCEL OF LAND. ALL BEARINGS ARE GRID BEARINGS OF THE COLORADO STATE PLANE COORDINATE SYSTEM, NORTH ZONE, NORTH AMERICAN DATUM 1983/2011. THE LINEAL DIMENSIONS AND AREAS AS SHOWN HEREIN ARE GROUND DISTANCES AND GROUND AREAS BASED ON THE "U.S. SURVEY FOOT." TO GET GRID DISTANCES MULTIPLY SHOWN DISTANCE BY 0.94974226. ALL REFERENCES TO ALIQUOT CORNER MONUMENATION IS DESCRIBED ON THE LAND SURVEY PLAT DATED 2024 FILED IN THE WELD COUNTY CLERK AND RECORDERS OFFICE UNDER RECEPTION NUMBER 4440341; Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 16 EXHIBIT B - FACILITY SPECIFICATIONS Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 17 .. LAND SURIM* FIAT PM. .9 ^ PART OF 732E 4011%,WHE•1141.4 GF 6ECT14441. 4ba140fb 6 x41444 WAKE 63.114341. 6TIH PIA SE0114143a. 3 11.10. fi, 4 96, TOINS!.0 NORM.161113E i611FST 6'114!9A r r a own 1 - . 0 1Te1.4 c0um. 041.41100 w . n r R • �� SISEISSAINSIMSt SIC 14, - MNMN86T 4 w w - n r . w _I .'. ^",''' ....wrw T;;=: ::=47. I Hn(f; _ r . . � No.. EE .. R. 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COLD .00 At r t, 4\1" t� ma PpW ni.!11 arwr 'j SEC 7 a 1 H1,-1 i Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 ,YYrL m•..w au�.hww+ NV S EC 1 T5 Al R61if E}; '4 I A ;e C.3 26 44tC.CC" • S EC,' 13 T5 R63 FY Preliminary PR,q KwIW fOloolac • G n• �A c-"e,yrtw • t unrnpr4`YM" OY[WMw1•••4 W� r•••••clp. •`+rC 6 1R1 'e+CY*+w4+4W0o'RP �.awi" �sw..m,rmwn � AMIS1.4VP1 PLAT ,m..� ••,:pL EXHIBIT C - DESCRIPTION OF ROAD Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 27 ACCESS ROAD EASEMENT 1 AN ACCESS ROAD EASEMENT, BEING 25 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE, LOCATED IN SECTIONS 22, 27, AND 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6T" PRINCIPAL MERIDIAN, WELD COUNTY, COLORADO, BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: COMMENCING AT THE NORTHWEST CORNER OF SAID SECTION 22, AS MONUMENTED BY A FOUND 3-1/4" ALUMINUM CAP ON NUMBER 6 REBAR STAMPED "LS 10855, 1997," WHENCE THE NORTHEAST CORNER OF SAID SECTION 22, AS MONUMENTED BY A FOUND 2-1/2" ALUMINUM CAP ON NUMBER 6 REBAR STAMPED "LS 9644, 1995," BEARS NORTH 89°21'58" EAST A DISTANCE OF 5,346.70 FEET, BEING THE BASIS OF BEARINGS IN THIS DESCRIPTION. THENCE ALONG THE NORTH LINE OF THE NORTHWEST QUARTER OF SAID SECTION 22 NORTH 89°21'58" EAST, A DISTANCE OF 1,362.64 FEET TO THE POINT OF BEGINNING 1(POB 1); THENCE DEPARTING SAID NORTH LINE OF THE NORTHWEST QUARTER SOUTH 04°12'29" WEST, A DISTANCE OF 408.77 FEET; THENCE SOUTH 00°26'01" EAST, A DISTANCE OF 1,112.82 FEET; THENCE SOUTH 0l°04'49" EAST, A DISTANCE OF 977.55 FEET; THENCE SOUTH 04°55'15" EAST, A DISTANCE OF 310.38 FEET; THENCE SOUTH 01'24'54" EAST, A DISTANCE OF 725.75 FEET; THENCE SOUTH 03°40'51" EAST, A DISTANCE OF 230.00 FEET; THENCE 242.55 FEET ALONG A CURVE TO THE LEFT HAVING A RADIUS OF 268.00 FEET AND A CENTRAL ANGLE OF 51°51'20" (CHORD BEARS SOUTH 29°36'31" EAST, A DISTANCE OF 234.36 FEET); THENCE SOUTH 55°32'10" EAST, A DISTANCE OF 1,097.60 FEET; THENCE 358.64 FEET ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 370.00 FEET AND A CENTRAL ANGLE OF 55°32'10" (CHORD BEARS SOUTH 27°46'05" EAST, A DISTANCE OF 344.76 FEET); THENCE SOUTH 03°13'21" EAST, A DISTANCE OF 1,671.96 FEET; THENCE SOUTH 05°36'03" EAST, A DISTANCE OF 1,103.93 FEET; THENCE SOUTH 06°10'05" EAST, A DISTANCE OF 1,104.87 FEET; THENCE SOUTH 07°42'00" EAST, A DISTANCE OF 1,210.07 FEET; THENCE SOUTH 07°45'22" EAST, A DISTANCE OF 636.71 FEET; THENCE SOUTH 06°28'24" EAST, A DISTANCE OF 490.36 FEET; PAGE 1 OF 3 Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 28 THENCE 233.44 FEET ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 332.00 FEET AND A CENTRAL ANGLE OF 40°17'10" (CHORD BEARS SOUTH 13°40'11" WEST, A DISTANCE OF 228.66 FEET); THENCE SOUTH 33°48'46" WEST, A DISTANCE OF 1,368.81 FEET; THENCE 94.05 FEET ALONG A CURVE TO THE LEFT HAVING A RADIUS OF 135.00 FEET AND A CENTRAL ANGLE OF 39°54'57" (CHORD BEARS SOUTH 13°51'18" WEST, A DISTANCE OF 92.16 FEET); THENCE SOUTH 06°06'11" EAST, A DISTANCE OF 115.29 FEET; THENCE SOUTH 10°56'56" EAST, A DISTANCE OF 572.33 FEET; THENCE SOUTH 16°49'13" EAST, A DISTANCE OF 459.88 FEET; THENCE SOUTH 20°52'15" EAST, A DISTANCE OF 352.88 FEET; THENCE SOUTH 46°56'36" WEST, A DISTANCE OF 89.73 FEET; THENCE SOUTH 43°00'58" WEST, A DISTANCE OF 437.74 FEET; THENCE SOUTH 45°21'39" WEST, A DISTANCE OF 319.42 FEET TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, S1/2) OF SAID SECTION 34 AND THE POINT OF TERMINUS 1(POT 1), FROM WHICH THE SOUTH 1/16T" CORNER OF SAID SECTIONS 33 AND 34, AS MONUMENTED BY A 3-1/4" ALUMINUM CAP ON A 30" NUMBER 6 REBAR, BEARS SOUTH 89°19'34" WEST, A DISTANCE OF 1,968.42 FEET. SAID EASEMENT CONTAINING 786,275 SQUARE FEET OR 18.05 ACRES, MORE OR LESS, ALSO BEING 15,725.5 FEET OR 953.1 RODS. GRID DISTANCES ARE BASED OFF U.S. SURVEY FOOT PER COLORADO NORTH STATE PLATE (NAD83) NORTH ZONE. SIDELINES OF SAID EASEMENT TO BE TRIMMED OR EXTENDED TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, S1/2) OF SAID SECTION 34. TOGETHER WITH: ACCESS ROAD EASEMENT 2 AN ACCESS ROAD EASEMENT, BEING 25 FEET ON EACH SIDE OF THE FOLLOWING DESCRIBED CENTERLINE, LOCATED IN SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6T" PRINCIPAL MERIDIAN, WELD COUNTY, COLORADO, BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS: COMMENCING AT SAID NORTHEAST CORNER OF SAID SECTION 22; THENCE SOUTH 11°12'34" EAST, A DISTANCE OF 14,227.55 FEET TO THE POINT OF BEGINNING 2 (POB 2); THENCE SOUTH 50°27'13" EAST, A DISTANCE OF 119.24 FEET; THENCE SOUTH 56°06'26" EAST, A DISTANCE OF 163.79 FEET; THENCE SOUTH 61°11'48" EAST, A DISTANCE OF 244.44 FEET; PAGE 2OF3 Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 29 THENCE SOUTH 62°16'17" EAST, A DISTANCE OF 185.58 FEET; THENCE 365.36 FEET ALONG A CURVE TO THE LEFT HAVING A RADIUS OF 374.00 FEET AND A CENTRAL ANGLE OF 55°58'22" (CHORD BEARS NORTH 89°44'32" EAST, A DISTANCE OF 351.01 FEET); THENCE NORTH 61°30'29" EAST, A DISTANCE OF 141.08 FEET; THENCE 101.49 FEET ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 77.00 FEET AND A CENTRAL ANGLE OF 75°31'05" (CHORD BEARS SOUTH 80°43'59" EAST, A DISTANCE OF 94.30 FEET); THENCE SOUTH 42°58'26" EAST, A DISTANCE OF 107.57 FEET; THENCE SOUTH 35°18'08" EAST, A DISTANCE OF 226.60 FEET TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, Sl/2) OF SAID SECTION 34 AND THE POINT OF TERMINUS 2 (POT 2), FROM WHICH THE SOUTH 1/16Th CORNER OF SAID SECTIONS 34 AND 35, AS MONUMNETED BY A 3-1/4" ALUMINUM CAP ON A 30" NUMBER 6 REBAR, BEARS NORTH 89°17'14" EAST, A DISTANCE OF 1,332.86 FEET. SAID EASEMENT CONTAINING 82,760 SQUARE FEET OR 1.90 ACRES, MORE OR LESS, ALSO BEING 1655.1 FEET OR 100.3 RODS IN LENGTH. GRID DISTANCES ARE BASED OFF U.S. SURVEY FOOT PER COLORADO NORTH STATE PLANE (NAD83) NORTH ZONE. SIDELINES OF SAID EASEMENT TO BE TRIMMED OR EXTENDED TO THE NORTH LINE OF THE SOUTH HALF OF THE SOUTH HALF (S1/2, Sl/2) OF SAID SECTION 34. I, BRANDON MOSER, COLORADO PROFESSIONAL SURVEYOR IN THE STATE OF COLORADO, DO HEREBY CERTIFY THAT THIS DESCRIPTION AND THE FIELD SURVEY ON THE GROUND UPON WHICH IT WAS BASED WERE PERFORMED BY ME OR UNDER MY DIRECT SUPERVISION. THIS DESCRIPTION WAS PREPARED FOR AND BEHALF OF PFS, LLC DBA ASCENT GEOMATICS SOLUTIONS. BRANDON MOSER, PLS 38412 PAGE 30F3 Chevron — Colorado Sand Company — Indemnity and Release Agreement FCC ES Law Settlement Agreement and Release Environmental (July 2020) Noble Draft 10 September 2024 30 ATTACHMENT H Exhibit C-1: Relevant Features and Adjoining Surface Ownership CTPWWORKING-TR0100i539z RELEVANT FEATURES A0101NING SURFACE 0 ERSHIP.OWG-W11/24 '�A /'TV TENS REC. co.04.0 WELLS RANCH O-> SSOC�po E T E CL MIDSTREA 49 M RECAM 9G1146R E2 .02,M) AAAA DUKEENERG REC. NO. 3280959 g STATE OF COLORADO AILA)® 401PIPELINE ROW NOW, MIDSTREAM SERVICES. LDS REC NO 4146283 8r Fi * m£ o$ ooCENTERLINE PIPELINE EASEMENT 3A ASSOCIATED N.A. CAS, INC - REC. NO 2203048 • SECTION 9 LW RANCH COMPANY 40) PIPELINE NOBLE MIDTREo MIDSTREAM SERVICES. LLC NEC. NO.4146283 • 101 NATURAL GAS PIPELINE NOBLE ENERGY, INC STATE OP COLORADO JORANCII LC 8� -8 • ,1 4131 PIPELINE EASEMENT DUNE ES LP Ala DUKE EIZZEFIr1=VICES LP REC NO 3077364 .9a20w 2635.01'( ) U WELLS RAN. Ixm Lu IN AREA) 00 0902 GN )i G1_X40D 5892141,2628 IM, wN(NIO DOG T� DUKE ENERGY FIELD SERVICES LP A-rucaL GAS ATURAL GLEE GAS PIPELINE NE,,I :• ¢11 NATURAL GAS INC PDC )).6.1 PIPELINE EASEMENT DCP MIDSTREAM LP REC NO 3797974 * AAA/A • 6EERGFLD ESEmgNT GN Ys, REC NO DIVER SITE EASEMENT DUKE ENERGY FIELD IGEG LP REC. NO 307737 0' PIPELINE EASEMENT DGR ENREC.NO3�69IGEB LP s� 4)7 nn VARYING o� I _ = a 7,zrzmrz:z. LP RECOLORALP ON 3 _NGNNATURAL GAS PIPELINE El63t., 1.1nr RAN ,,), NATURAL GAS PIPELINE NOBLE ENERGY, ING NATURAL GAS PIPELINE PM EREAM NE A D. REAM, NATURAL GAS LP DG� 9LP REC. NO. 3016421 RR, 0639.95 GH2263o1;ME, g DM' MIDSTREAM, LP RED NO 3,73" — PRAIRIE TOWN (NOTE RED NO 3677384 I EP WELLS RANCH CH 2636440.001 IR) N8911 2631321 (M) SEE NOTE 5 CH I2630.001 (R) N392304E .63'(M1 WELLS RANCH NATURAL GAS PIPELINE I LL • s GGPMIDSTREAM,L GGK REC.NO.3200959 9LP 50 PIPELINE EASEMENT DUKE ENERGY FIELD SERVICES LP REC. NO. 3260959 3 A PRAIRIEOW b9p TOWN(NOTE 4)) O®A N89)07.46112.4.01'91(RI N , S LP ° 5 (a) AARow55IMI GB E•�• YIG . . EC ERGNO 3077384LD BLP 4690 � NGR SERVICES LC DURPIPELINE PAA- S NEC NO 7,1570 SO' PIP MIKE ENERGY FIELD S NEC NO 3,7 L RE NOUR3M9 WEL.RRR -4 NOBLE ENERGY, INC RECEIVER SITE DCP MIDSTREAM LP REC NO 3504063 50. PIPELINE ROW DUKE ENERGY FIELD SERVICES LP REC. NO. 2861170 cc PIPELINE POW DG NOT4t SLP•AAM' RECEIVER SITE EASEMENT SEI=6S LP GLOMS 86 w2636 863 M) N89)39071 (MI NOB, ENNATURAL ERGY. INC.C. GNNE OM E3LP - GLOMSCH2663,7") ) IIm 60 PIPELINE ROW 77 B9 29' (NI) NOBLE MIDSTREAM REC NO 3Lc;a "i"s - WELL PERMIT 411,33 iNUMBER 310349 s NOTE 5 5 ENTIR7):!EFETVICES LP NE j 07®EER REC. GLO=39 87 CH (2631.4 '1(R) N69)4502'). 256,'(MI NATURAL GAS PIPELINE NOBLE ENERGY, INC MONITORING WELL PERMIT NUMBER 2°129 1 f 70 RANCH LLC NATURAL GAS PIPEUNE BONANZA CREEK COMPANY YNiLC OPERATING C .N A 13.ti PDC ENERGY INC CH (2631.411) 256133)((R N394428w 256133) (M) il\LI30 ',MOLINE ow L WELLS RANCH 50 PIPELINE EASEMENT DUKE ENERGY FIELD SERVICES LP REC NO 326.59 OCPMIDSTREAM_NATURAL GAS NE &g IN DCPMIDSTREAM, NATURAL GAS LP 1 g STATE OF COLORADO 661FTPEONE EASEMENT COLORADO LIBERTY PIPELINE REC. NO.4587442 FL 0 01 GLOA39 92 CH2 (2534.7111(R) ( MI a eg Y ( E 663. r' P e, AM .� 1 Na91C R M �&� NATURAL GAS PIPELI DCP MIDSTREAM LP WELL PERMIT NUMBER 319490 qo- 35 P PELTNE ROW OU ROCKY M NTAN RuCTCRE,M.C 1APPR110) roc 1) NATURAL GAS PIPELINE J L NATURAL GAS PIPELINE TSN - — R WELLS RANCH B NRAL GAS PIPELINEENERGY OPERATING COMPANY LLC NATURAL GAS PIPELINE BONANZA CREEK OPERATING COMPANY LLC CH (26.29 .030 2SS8n3(M) srcnox JO RANCH I.LC NATURAL GAS PIPELINE BONANZA CREEK ENERGY , OPERATING COMPANY LLC GAS OPERATING COWAN, BONAN2A CREEK LLC NE ROW DCP MIDSTREAM. P REC. NO.353]462 =39:84 CH 029430 (RI se03'3Y' W 2 0.09' (M) � 0 • WELLS RANCH • WELLS RANCH LLLP 70 RANCH LLC SECTION NI 70 RANCH Lit Nel. CRUDE TERMINALS LLC PARENT CO ARWACQUI InON ENTI DCP OPERATING COMPANY, LP OCR IDST DUI< Fl LDS MACE LP 5SOCIATED NARMALG CORPORATIO OBL MIDSTREAM PARTNERS LP LP CHEVRON CORPORATION COLORADO RN VCO LP PLO PIKE ERGY INC CREE ERGY OPERATI CITIVALS RESOURCES PA NOTES 1 PERMIT AREA BOUNDARY RUNS COINCIDEWITH I SECTIONW1/4 OFSECEPT TION"34TO Eeii4OF ECTION 3, 2 TOTAL AFFECTED AREA:4,018 ACRES. 3 PROPERTY OWNER IS DISE,. BENEATH TOWNSHIP A. RANGE DESIGNATION 4 DOWNS FROM MARCH 15 - OCTOBER 31 SABANDONED FOR LUGGED AND MINE SEQUENCE AREA. LLC 6. OECOMMISS ON E%ISTING TANKS AND EQUIPMENT PRESENT Ai WELLS IN MINE 660 990 0 660 1920 9O 660' COMMISSION DATABASE SEQUENCE AREA. 7. THE PIPELINES 0 WELLS DEPICT THE OPERATING COMPANIES AS USTED IN THE WELD COUNTY RECORDS 0 COLORADO ENERGY 9CARBON MANAGEMENT ENE, LEGE EXISTING BUILDING SECTION DIVIDE EXISTING UNDERGROUND GAS EXISTING ROADWAY EXISTING OVERHEAD ELECTRIC EXISTING EASEMENT PERMIT AREAL BOUNDARY EXISTING FENCE SECTION QUARTERS MINOR CONTOUR AB,OR CONTOUR OIL 0GAS WELL OWNER • AMOCO PRODUCTION COMPA E%ENE'Y 9 WELL OWNER -NIGH SUMMIT OIL &GAS 9 WELL OWNER - NOBLE ENERGY 9 WELL OWNER - U.S. GOLD COMPANY 9 WELLOWNER- UNITEDMATTHEXPLORATION L ND GAS WELL SYMBOL LEGEND: OI pi ABANDONED LOCATION O WELL - SHUT IN WELL - v BANDONED # WELL • PRODUCING n WELL- TEMPORARILY ABANDONED SYMBOL LEGEND. GATES ALA. SUVEYPIATMATIONS • ALIQUOT SURVEY CORNER Ei PRAIRIE DOG TOWNS (SEE NO E4� ® WELL CONSTRUCTED WATER SEPTEMBER 2024 EXHIBIT C-1 COLORADO SAND COMPANY II, LLC KERSEY MINE RELEVANT FEATURES AND ADJOINING SURFACE OWNERSHIP T TRC ENVIRONMENTAL CORP. mew r gaga° a ° LOI OP BY PUS 0 BY ATTACHMENT I Wells Ranch LLLP Structure Agreement Structure Agreement This letter has been provided to you, Wells Ranch LLLP, as the owner of a stock well (Permit Number 319490), stock well (Permit Number 310849), domestic well (Permit Number 3738), a guard station building, guard station security fence, private roads, interior and perimeter fencing, cattle feeders, troughs, water tanks and other structures associated with cattle operation on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable, and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: A. Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or B. Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or C. Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Miring Rule 6.3.12 and Rule 6.4.20). The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with the Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. §34-32.5-115 (4)(e), and with the Hard Rock/Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures have been located on, or within, 200 feet of the proposed affected areas: • Stock Well Permit Number 319490, NW1/4 of the NE1/4 of Section 14, T5N, R63W • Stock Well Permit Number 310849, NW1/4 of the NE1/4 of Section 15, T5N, R63W • Domestic Well Permit Number 3738, NW1/4 of the SW1/4 of Section 2, T5N, R63W (estimated) • Associated piping, water tanks, cattle feeders, and other structures associated with cattle operation located throughout the Wells Ranch property. • All interior and perimeter fencing located throughout and along the Permit area. • Guard Shack, including building and security gate located at the northern property entrance. • Private roads from County Road 68, south, to the mine entrance. Structure Agreement Page 1 of 3 Kersey Mine_112 Reclamation Operation CERTIFICATION The Applicant, Colorado Sand Company II, LLC, by David Patterson, Co -President, does hereby certify that Wells Ranch shall be compensated for any damage from the proposed mining operation to the above structure(s) located on, or within, 200 feet of the proposed affected area described within Exhibit A of the Reclamation Permit Application for the Kersey Mine. File Number M This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration of modification to this form shall result in voiding this form. Structure Agreement Page 2 of 3 Kersey Mine_112 Reclamation Operation NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant: Colorado Sand Company II, LLC Representative Name: Dave Patterson Representative Signature: Date: Title: Co -President STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , by as of My Commission Expires: Notary Public Structure Agreement Page 3 of 3 Kersey Mine_112 Reclamation Operation NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner: Wells Ranch LLLP Representative Signature: Print Representative Name: Representative Signature: Print Representative Name: Date: Title: STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , by as of My Commission Expires: Notary Public Structure Agreement Page 4 of 3 Kersey Mine_112 Reclamation Operation Exhibit A Proposed Mining Location Kersey Mine_112 Reclamation Operation Exhibit B Wells Ranch Structures within Permit Area Kersey Mine_112 Reclamation Operation PROPERTY DESCRIPTION: LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. • . �® . • s • �� WELD COUNTY, COLORADO WEST.OFTxEETx P.r.ns,xE,R SiwrmESxnrnwE.a. smnox�x.mv„rexmsxaarx,x asam r__T__--I . . . scxsouEs ax Pzcsnloxs. 1 SEC 34 T6N, 63W • �`�yy • • • P. PaPceucxnnawnnairvsusnxcscauPAxv roRacuxvaPvauvauaxurt (SHEERT 3)--ISHEET INDE. . . . J • • • - RP wFaaunory cxE""'2E""P' ' yrreP.co,on.xme..xo,xRxxcx mssrareuxooFranT»Exr .mcwn.mE.F.t xo. 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PRO ECCTPUT LAND SURVEY PART OF ME O�HAUG secz3., ° Fx,wwc snozrx. .22,N£ST ._.• .,RANGE .,mc.om, AwxrnWo E. ns SCALE wxcocoun7v,cocoanoo LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO PPS 4'wi+.��i.m..09rz.nmz=.uumm. m.wm.===�w6..o.�^r 111 ARAMPPREVAMM PERMED DM REVIEW APPROVED PAP REVIEW APPRCvED RE PRO URTVEYPUT CAPRA PROJECT DID SCALP AS59110W11 Preliminary 013020. 4 05 31 PM LAND 5UAVE ONE -PART OF THE 110.55 TOWNSHIP 6 501,511 nt wwce63WEST . MK, 3.11,1314, R 13 TOWNSHIP 5 NORTH. RANGE 5.3 IN£511 PIP PRINCIPAL MERMAN V551.13COUNT, COLORADO V551.13 7 20f9 SEC 27 T6 R63W r gw") SEC 33 T6 R63W -+ s*RVPm nsa � \ T6 N___ T5 r<,a NW1/4 LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO SEC 34 T6 R63W E,,.0•LN1 \1\ SW1/4 E orlw = + a,aIza�. SEC 3 NE1 /4 aaa,z<a. oonaco) SE1/4 T5N R63W IP Xi NOM 7,a E zon.so N.) 0 LEGEND SLLIWIOT CORNER OESCRism sEr MONUMENT AS DESCRIBED L, ENCED SHOOTS 1-, SEC 35 T6 R63W ea: aSE`ION.% sr -- - .,E�N.F in I I'I '"RmNoa� �i lieu t—eanvsrRwo Y aw Io re-A7OE, T6N T5 PSIOVMPSIAOITII LOT LOVE PROPOSED LEASE BOUNDARY SSEE NOTE 71 ;ENO...4 STRAND BARBED WIRE PM RECORD ',SEE NOTES.. Symbol LeoenE OWater Well jr moo PPS 0ESIGNED CpC REVIEW APPROVED GYP PROJECT W CLIO", PROJECT NO ASCENT PROJECT,. 1-R0_0230001 Preliminary of„4/20246:05. PM LAND SURVEY PLAT THE SOUTH ONEsliALF OF SEC M. TOWNSHIPS. NORM. RANGE 631VESIT ,,,====i-- =i-- 4,9 LAND SURVEY PLAT T6N___ T5N J� 1-0EF „' SEC 4 T5N R63W se a SEC 34 T6N R63W ,I L PECE rsEcx �ya40`4,' _ AAAA N0. 4 "RE 1 T`. SW1/4 11191O -1 -PACK 1100,5 �I18 OAAA® --- - Ra 6x (2865.69,PM 150 PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2. 3, 11, 10, 14, 6 15, TOWNSHIP 5 NORTH. RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO A0A �w9z� LR —------ 0 ,» oR .ME �� RE6 � m l�110,E1151093 o N0. 2 i it ^ n� Kl„w' 3 uAz,,,A aT -R— —__ — —- N0. 1 S: 11 Eg bns> NEl /4 J� SEC 3 T5N R63W AREA — 3>.35>.,>3 3a — 639.513 ACRES' .F I A SE1/4 T6N T5N GRAPHIC SCALP 1..S003 EPIS�11 LEGEND 1101,013131E1 FOUND OR PET AS o[SCRieev MONUMENT AS DESCRIBED oPAPPMMIT PPIMPPRENCEDo.MOPP.R,-2 �6.o5e.6,�66. SEC 2 T5N R63W AO AAA .6gx.'=- '45, 26410190M SEC 10 T5N R63W 4 ir-z x ..-, 1311.30.1113.1,31,5391 PROPOSED LEASE BOUNDARY MEE PIMP 11 FENCE3319TRAND PARSED WIPE Symbol LeoenE OWater Well 11115101 01511311101 .1I aam 11 555,5,535, PPSMNPID APPROVED PROJECT W WEPT PROJECT Pp ASCENT PROJECTNO 13151,19211001 Preliminary 0191092024 4 OP 10 PM TOWNSHIP 6 NORM, RANGE M WEPT LAND SURVEY PLAT THE SOUTH 0,1E9113913P OF SEC 113 XL"=":Coo ��. <OF 9 LAND SURVEY PLAT SEC OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SL C 3 SECTIONS 2, 3, 11, 10, 14, 6 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. T5N R63W - _______-_--_-� WELD COUNTY, COLORADO - _�—-= van, (zr er - - -=w zaN6.e.µta, — SEC 9 T5N R63W Gat >ti NTY1/4 /4 SEC 10 T5N R63W RE4 = 28,024.490 se.NNIN = e,3.35, 4cr s ./- TIN IIIp0'�, G_ GRAPHIC SCALE: ',SNP 0suNG LEGEND 2.O1,O2INED NOLAND OR SETA, DESCRIBED asE-r MONUMENT AS DESCRIBED Z\ EASEMENT ASINDAGRENGEDONSREGrS PROPOSED LEASE BOUNDAD,SED NOTE FENCE, GOONS BARBED WINE OM MEASURES ID) IDECORI,SEE Nom. 51 SEC 11 T5N R63W Symbol LeoenE OWater Well APPROVED APPROVED GLP PROJECT W LAND SAPV,2 PLAT WENT PROJECT NO. Preliminary 01/10/2024 4 OS 16 PI, LAND SURVEY PLAT PANT OF THE SOUTH ONE2HALF SEC 29. RANGE SS WEST NTH FROGC1PAI. WD couvn.cvioww Eo�'" 50F9 LAND SURVEY PLAT SEC 16 T5N R63W B=I OYU SEC 10 T5N R63W APPPCMPO PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO II9H 22634 a O6) R OS Ir�ee,eeee�.o a� SEC 15 T5N R63W NE1 /4 016uIOPLEGEND IOPOT COSEMP FOUND OR 36i PP oEuaePD 66. MONUMENT,. DESCRIBED oEAMMMEMMIMMAENCEDo.MEM=,, aRSn = 19.5.9,626 S@ = 692452 ACRES gp 111 r / SEC >4 T5N R63W —�av¢mao----.`_,6ewMeiur� 11 i oi+nvE�Aam l� �I , -- --�a _ _ .1I APPMenaMaMen 6Enzeeeo ' SEC 22 T5N R63W PROPOSED LEESE BOUPOPPMPEE PPM 0, FENCE, STRAW MRSED WIPE MI RECORD MEE NOTE!. 41 Svmbol Leoend OW Water Well PPS PRESPERD APPROVED MP PROJECT W SPUR SURVEY PLAT CLIRSIEPROJECENO PROEM PROJECT?. 1390_0239001 Preliminary 01/10,2026 6 21 PM LAND SURVEY PLAT PART OF THESOLPIPISONESEIALF SRC 39. RANGE OWES'S. �IS��o� «m.I" 60F9 LAND SURVEY PLAT SEC 35 T6N R63W N0. 4 SEC 3 T5N R63W PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO t , ,‘ 9.79�Ez6,,.aE;�1 I N0. x2 -+ 'AREA = 2 ,838.686 se Fr. = 638.951 ACRES fi na��9�°� ss�.asbµllR> SEC 11 T5N R63W " 09PLOD, D,CO ONo DESCRIBED ser MONUMENT AS [...MED -- o EASEMENT ENCEoo.PRESS AS SESSION UNE SEC 1 T5N R63W PROPOSED LEASE BOUNDARY MEE PRE 71 SONDRA STRAND BARBED WIRE 151 RECORD ',SEE NOTE PP SI Symbol LeoenE OWater Well Plk APPPREPARSAVEn PPS OESSONED DP PREVIEW APPROVED SUMS OLE APPROVED PROJECT W LAND SURVEY RAT CLIENT IROJECT NO ASCENT PROJECT NO PRO_ESSE001 Preliminary /102024 4 06 25 PM LAND SURVEY PLAT PART OF THE SOUTH ONE -HAIR SSC RANGE SD WEST WELD «uN,y.ro,.oa noro, ,ors LAND SURVEY PLAT SEC 10 T5N R63W ij SEC 2 T5N R63W e=,° Strz,, PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO 'yen E Z°0°Z,'" M¢°1 SEC 11 T5N R63W �i w," SEC 14 T5N R63W SEC 12 T5N R63W sEGEND �U CORNER FOODS, OR SETA, DESCRIBED MONUMENT AS DESCRIBED L, EASEMENT PSREGERENCED ON SRE0rS PROPOSED LEESE BOUNDARY SSEE NODE 71 DIRT OR IWOW.CE POND AS SPECUIED EV MEASURED SEI RECORD WEE NOTES.. SI Symbol LeoenE OWater Well PRIVIES OESESUPDOII 1FDieweemaSPENVW PPS OLE OR REVIEW APPROVED APPRCVED PROJECT W LANDSUNVEVESAT CLOW PROJECT NO. Preliminary /10/20DN PS OE 29 PM LAND SURVEY PLAT PANT OF THE SOUTH ONE-HALF DEC 39. DRDNICSPAS. MERIDIAN WErn COUPE,. cvio SPVIDO " 80ff9 LAND SURVEY PLAT SEC 15 T5N R63W PPS SEC OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SL C 11 SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. T5N R63W WELD COUNTY, COLORADO a "o=as.sz a (=';)d (a) da F mn'egVs w (zerW? (v)' rves�s'zS[ sssasz'(rn, 0 f n89tf5TE xsee.w'(M) 0 I IVW1/4 -a„aa„°, =1';„(es �Gwv¢swo NE1 /4 SEC 14 T5N R63W r— — _ 27.890.228 E,. _ se 894 ACRES , q,d 0 SEC 23 T5N R63W AS QEASEMENT EOX is�c MONUMENT DESCRIBED Suieeo z SEC 13 T5N R63W "110/0111n1E1.- Lam,. PROPOSED LEASE BOUNOPPY1SEE NOTE 11 FENCE,STRAND BARBED WIRE Symbol LeoenE OWater Well 111E OLP OC REVIEW APPROVED WI PROJECT W LANDSUVEYFiAT WERT PROJECT NO, ASCENT PROJECTNO 1,,E1.0001 Preliminary 01/10/2024 4na37PN LAND SURVEY PLAT PART OF THE SOUTI-1 ONE-I-IALF SEC 39. RANGE WEST WE�11rvn.C,Io8 D « O 90f 9 Exhibit C Mine Access Route Kersey Mine_112 Reclamation Operation OWNER: CO 392 (HIGHWAY TO GREELEY AREA) NoCo SOD LEGEND 0 ACTIVE/ABANDONED GAS WELL CENTRAL DELIVERY POINT FACILITY STRUCTURE GAS WELL ACCESS ROAD CO 392 TO MINE PROPOSED ROUTE ON EXISTING ROADWAYS CO 392 TO MINE PROPOSED ROUTE ON PROPOSED ROADWAYS DIRT/GRAVEL ROAD PAVED ROAD PERMIT AREA BOUNDARY PARCEL BOUNDARY CO 392 (HIGHWAY TO CO 14 / BRIGGSDALE) )-]COUNTYR AD 67 COUNTY ROAD 68 (COLLECTOR ROAD) WELLS RANCH CHEVRON PROCESSING PLANT COUNTY ROAD 64 - PRIVATE ROAD / CONTROLLED ACCESS ONLY PERMIT AREA BOUNDARY 0 1250' 2500' I � MINE SITE ENTRANCE (NOTE 1) 5000' SCALE 1" = 2500' NOTES: 1. MINE ACCESS SHALL BE RESTRICTED BY MEANS OF SECURITY GATE & SIGNAGE. 2. PROPERTY ACCESS RESTRICTED BY WELLS RANCH GUARD SHACK. 3. SEE PROPOSED ROADWAY ON EXHIBIT D-1. WELLS RANCH GUARD SHACK (NOTE 2) PRIVATE ROAD PRIVATE RESIDENCE MINE SITE EXIT (NOTE 1) PROPOSED SAND PLANT COLORADO SAND COMPANY II, LLC PROJECT: KERSEY MINE TITLE: MINE ACCESS ROUTE DRAWN BY CHECKED BY: GW AJR APPROVED BY: DK DATE: JUNE 2024 SCALE: 1" = 2500'-0" PROD. NO. 53589 0000.0000 FILE NO A-5 MINE ACCESS POUT G EXHIBIT A-5 =2 Tr2C 1526 Cole Blvd, Suite 150 Lakewood, CO, 80401 Phone: (303) 792-5555 Fax: 970.484.3250 ATTACHMENT J Table L-1: Reclamation Cost Estimate Table L-1: Reclamation Cost Estimate Item No. Work Description Quantity Unit $/Unit $/Unitx CPI I[illation Extended 1 PLANT AREA AND FACH,TIES A Plant Dismantlement/Transport to Denver Metro Area 1 Lump Sum $ 1,250,000 $ 1,527,839 $ 1,527,839 B Plant Foundations Concrete Breaking/Removalan-Pit Disposal 71,337.00 YD3 $ 8 $ 9 $ 653,949 C Paved Area Concrete/Asphalt Removal/In-Pit Disposal (13.24 acres/6-inches) 10,687 YD3 $ 4 $ 5 $ 52,250 D Miscellaneous Solid Waste Removal/Disposal 15 Truck Loads (12 YD3) $ 125 $ 153 $ 2,292 E Scarify/Mix Rocked Plant Area Into Sub -Grade (Dozer/Scarifier) 13.24 Acres $ 175 $ 214 $ 2,832 F Regrade and Disc Plant Operations Area (107 acres) 107 Acres $ 300 $ 367 $ 39,235 G Place/Spread l2" Growth Medium Across Full Plant Area (107 acres) 173,000 YD3 $ 3 $ 3 $ 528,632 H Seed Mix (23 lbs./acre x 107 acres) 2,500 Lbs. $ 35 $ 43 $ 106,949 I Drill Seed 107 Acres $ 225 $ 275 $ 29,426 J Mulch Application (2 tons/acre x 107 Acres) 214 Acres $ 235 $ 287 $ 61,468 K Crimping (Discing) 107 Acres $ 75 $ 92 $ 9,809 L Silt Fencing/Sediment Logs and Erosion Control 1 Lump Sum $ 2,500 $ 3,056 $ 3,056 Sub -Total Plant Demolititan and Removal $ 3,017,735 2 TERMINAL MINE PITC@ YEAR 5)/HAUL ROADS/PROCESS DISCARD STOCICPILE (PDS) A Place/Spread 12" Growth Medium Terminal Pit (MiningYears0-5 - ReclamationYears3-5 - PDS@Year5: (3+127+108+93+76+71)-(42-54114)-12.28 = 325.72 acres) 525,495 YD3 $ 2 $ 3 $ 1,573,628 B Slope Reduction Process Discard Stockpile - Dozer 5H:1 V Slope - 2 Sides Only 63 Hours $ 175 $ 214 $ 13,476 C Place/Spread 12" Growth Medium on Remainder Process Discard Stockpile (12.28 acres) 19,808 YD3 $ 2 $ 3 $ 59,316 D Rip/Scarify East, Northwest and Southwest Primary Haul Roads (10.6+10.6+22.8=44 acres) 44 Acres $ 175 $ 214 $ 9,411 E Place/Spread 12" Growth Medium on Haul Roads (44 acres) 70,987 YD3 $ 2 $ 3 $ 212,574 F Seed Mix (12 lbs./acre PLS x [325.72+12.28+44] 382 Acres) 4,584 Lbs. $ 35 $ 43 $ 196,101 G Drill Seed 382 Acres $ 225 $ 275 $ 105,054 H Mulch Application (2 tons/acre x 382 acres) 764 Ton $ 235 $ 287 $ 219,447 I Crimping (Discing) 382 Acres $ 75 $ 92 $ 35,018 J Miscellaneous Silt Fencing/Sediment Logs and Erosion Control 1 Lump Sum $ 10,000 $ 12,223 $ 12,223 Sub -Total Terminal Mine Pi (@ Year 5)/Haul Roads/PDS $ 2,436,248 3 REVEGETATION MONITORING AND MAINTENANCE - 5 YEARS A Post -Closure Year 1 (PC -1) 585 Acres $ 150 $ 183 $ 107,254 B Post -Closure Year 2 (PC -2) 585 Acres $ 125 $ 153 $ 89,379 C Post -Closure Year 3 (PC -3) 585 Acres $ 100 $ 122 $ 71,503 D Post -Closure Year 4 (PC -4) 543 Acres $ 75 $ 92 $ 49,777 E Post -Closure Year 5 (PC -5) 489 Acres $ 50 $ 61 $ 29,885 Sub -Total Monitoring and Maintenance - S Years $ 347,797 TOTAL DIRECT COST (ITEMS 1-3) $ 5,801,781 INDIRECT COSTS 4 Liability Insurance 2% of Direct $ 116,036 5 Performance Bond 1.05% of Direct $ 60,919 6 Job Superintendent 6 Month 8,750 10,695 $ 64,169 7 Profit 10% of Direct $ 580,178 8 Engineering/Bid Preperation 4.25% of Direct $ 246,576 9 Reclamation Management/Administration 5% of Direct $ 290,089 TOTAL INDIRECT COSTS (ITEMS 4-9) $ 1,357,966 --- GRAND TOTAL2 $ 7,159,747 Notes: Estimate Provided by Plant Construction Contractor - Includes all Labor and Materials for Complete Plant/Equiptment Removal and Foundation Demolition ' All Costs Reflect Quotes and/or Unit Prices Utilized for the CSC Keenesbnrg No. 2 Mine (DAMS Permit No. M 2019-058) Reclamation Cost Estimate - Adjusted for Inflation Utilizing Compounded CPI for 2019-2023 Quantities May Be Rounded Malone, Leah From: Sent: To: Subject: Gagnon - DNR, Nikie <nikie.gagnon@state.co.us> Monday, September 23, 2024 4:10 PM Malone, Leah [EXTERNAL] Re: Wells Ranch LLLP Structure Agreement (signed) This is an External email. Do not click links or open attachments unless you validate the sender and know the content is safe. ALWAYS hover over the link to preview the actual URL/site and confirm its legitimacy. Thank you for sending in the signed agreement. Have a nice evening. Nikie Gagnon On Mon, Sep 23, 2024 at 3:51 PM Malone, Leah <LMalone@trccompanies.com>wrote: Good afternoon, Sending you CSC's Structure Agreement with Wells Ranch LLLP (attached) per our commitment in the response package to provide the signed and notarized agreement immediately upon execution. Thank you, Leah Malone Project Coordinator „Apr TRC 123 N. College Ave, Suite 370, Fort Collins, CO 80524 Cell: 970.698.1538 LMalone aAtrccompanies.com 1 Structure Agreement This letter has been provided to you, Wells Ranch LLLP, as the owner of a stock well (Permit Number 319490), stock well (Permit Number 310849). domestic well (Permit Number 3738), a guard station building, guard station security fence private roads, interior and perimeter fencing, cattle feeders. troughs, water tanks and other structures associated with cattle operation on or within two hundred (200) feet of a proposed mine site The State of Colorado" Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable, and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either. A. Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure" that the Applicant is to provide compensation for any damage to the structure; or B Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or C Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ('Construction Materials Rule 6 3.12 and Rule 6.4.19 & Hard Rock/Metal Miring Rule 6 3.12 and Rule 6.4.20). The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with the Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. §34-32.5-115 (4)(e), and with the Hard Rock/Mining Rule 6.3.12(a), Rule 6 4.20(a). and C.R.S §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the )Pules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division_ The following structures have been located on, or within, 200 feet of the proposed affected areas: • Stock Well Permit Number 319490, NW1/4 of the NE114 of Section 14, T5N, R63W • Stack Well Permit Number 310849, NW1/4 of the NE1/4 of Section 15, T5N, R63W • Domestic Well Permit Number 3738, NW1/4 of the SW1/4 of Section 2, T5N, R63W (estimated) • Associated piping. water tanks, cattle feeders, and other structures associated with cattle operation located throughout the Wells Ranch property. • All interior and perimeter fencing located throughout and along the Permit area. • Guard Shack, including building and security gate located at the northern property entrance. • Private roads from County Road 68, south, to the mine entrance. Structure Agreement Page 1 of 3 Kersey Mane_112 Reclamation Operation CERTIFICATION The Applicant, Colorado Sand Company II, LLC, by David Patterson, Co -President, does hereby certify that Wells Ranch shall be compensated for any damage from the proposed mining operation to the above structure(s) located on, or within, 200 feet of the proposed affected area described within Exhibit A of the Reclamation Permit Application for the Kersey Mine. File Number M This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration of modification to this form shall result in voiding this form. Structure Agreement Page 2 of 3 Kersey Mine_112 Reclamation Operation NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant: Colorado Sand Company II, LLC Representative Name: Dave Patterson Representative Signature: Date: ,1Sext--// R� Title: Co -President STATE OF -1--excks } } SS. COUNTY OF �ii rkS ) The foregoing was acknowledged before me this �<r-'1.. day of i5 -e d e r 2hZN , by Er f� n '/ Gnu` /t Y" G- �'�ol",. as O ` Ptc5;406L f of CO f UJ'� Sc(4.7 CCt'''^f3u"y/ LAC Sikh)/ �G�, -�, (, My Commission Expires: �y 21_1 2O Notary Public Sady Cardenas My Commission Expires 9/27i2026 Notary ID 1339863D1 Structure Agreement Page 3 of 3 Kersey Mine_112 Reclamation Operation NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Wells Ranch LLLP Representative Signature: Print Representative Name:-�dS�N.-LittS Representative Signature: Print Representative Name: Bate: _UEIYI LQAD a .3„ rz,Aq Title: � Vat'±Ip r STATE OF CLOVOCedTh1 ++ } SS. COUNTY OF ke The foregoing was acknowledged before me this tJ day ofC2��t f(V, by •_)\-11_11k 1?). 1/4,-A:<ligtla) of 6- l y Commission Expires: Not Public MARTI K ROTHROCK NOTARY PUBLIC STATE OF COLORADO NOTARY ID 19954013290 MY COMMISSION EXPIRES 08/251027 as kkITUADS Structure Agreement Page 4 of 3 Kersey Mine_112 Reclamation Operation Exhibit A Proposed Mining Location Kersey Mine_112 Reclamation Operation Exhibit B Wells Ranch Structures within Permit Area Kersey Mine_112 Reclamation Operation PROPERTY DESCRIPTION: LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. • . �® . • s • �� WELD COUNTY, COLORADO WEST.OFTxEETx P.r.ns,xE,R SiwrmESxnrnwE.a. smnox�x.mv„rexmsxaarx,x asam r__T__--I . . . scxsouEs ax Pzcsnloxs. 1 SEC 34 T6N, 63W • �`�yy • • • P. PaPceucxnnawnnairvsusnxcscauPAxv roRacuxvaPvauvauaxurt (SHEERT 3)--ISHEET INDE. . . . 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PRO ECCTPUT LAND SURVEY PART OF ME O�HAUG secz3., ° Fx,wwc snozrx. .22,N£ST ._.• .^RANGE .,mc.om, AwxrnWo E. ns SCALE wxcocoun7v,cocoanoo LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO PPS 4'wi+.��i.m..09rz.nmz=.uumm. m.wm.===�w6..o.�^r 111 ARAMPPREVAMM PERMED DM REVIEW APPROVED PAP REVIEW APPRCvED RE PRO URTVEYPUT CAPRA PROJECT DID SCALP AS59110W11 Preliminary 013020. 4 05 31 PM LAND 5UAVE ONE -PART OF THE 110.55 TOWNSHIP 6 501,511 nt wwce63WEST . MK, 3.11,1314, R 13 TOWNSHIP 5 NORTH. RANGE 5.3 IN£511 PIP PRINCIPAL MERMAN V551.13COUNT, COLORADO V551.13 7 20f9 SEC 27 T6 R63W r gw") SEC 33 T6 R63W -+ s*RVPm nsa � \ T6 N___ T5 r<,a NW1/4 LAND SURVEY PLAT PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO SEC 34 T6 R63W E,,.0•LN1 \1\ SW1/4 E orlw = + a,aIza�. SEC 3 NE1 /4 aaa,z<a. oonaco) SE1/4 T5N R63W IP Xi NOM 7,a E zon.so N.) 0 LEGEND SLLIWIOT CORNER OESCRism sEr MONUMENT AS DESCRIBED L, ENCED SHOOTS 1-, SEC 35 T6 R63W ea: aSE`ION.% sr -- - .,E�N.F in I I'I '"RmNoa� �i lieu t—eanvsrRwo Y aw Io re-A7OE, T6N T5 PSIOVMPSIAOITII LOT LOVE PROPOSED LEASE BOUNDARY SSEE NOTE 71 ;ENO...4 STRAND BARBED WIRE PM RECORD ',SEE NOTES.. Symbol LeoenE OWater Well jr moo PPS 0ESIGNED CpC REVIEW APPROVED GYP PROJECT W CLIO", PROJECT NO ASCENT PROJECT,. 1-R0_0230001 Preliminary of„4/20246:05. PM LAND SURVEY PLAT THE SOUTH ONEsliALF OF SEC M. TOWNSHIPS. NORM. RANGE 631VESIT ,,,====i-- =i-- 4,9 LAND SURVEY PLAT T6N___ T5N J� 1-0EF „' SEC 4 T5N R63W se a SEC 34 T6N R63W ,I L PECE rsEcx �ya40`4,' _ AAAA N0. 4 "RE 1 T`. SW1/4 11191O -1 -PACK 1100,5 �I18 OAAA® --- - Ra 6x (2865.69,PM 150 PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2. 3, 11, 10, 14, 6 15, TOWNSHIP 5 NORTH. RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO A0A �w9z� LR —------ 0 ,» oR .ME �� RE6 � m l�110,E1151093 o N0. 2 i it ^ n� Kl„w' 3 uAz,,,A aT -R— —__ — —- N0. 1 S: 11 Eg bns> NEl /4 J� SEC 3 T5N R63W AREA — 3>.35>.,>3 3a — 639.513 ACRES' .F I A SE1/4 T6N T5N GRAPHIC SCALP 1..S003 EPIS�11 LEGEND 1101,013131E1 FOUND OR PET AS o[SCRieev MONUMENT AS DESCRIBED oPAPPMMIT PPIMPPRENCEDo.MOPP.R,-2 �6.o5e.6,�66. SEC 2 T5N R63W AO AAA .6gx.'=- '45, 26410190M SEC 10 T5N R63W 4 ir-z x ..-, 1311.30.1113.1,31,5391 PROPOSED LEASE BOUNDARY MEE PIMP 11 FENCE3319TRAND PARSED WIPE Symbol LeoenE OWater Well 11115101 01511311101 .1I aam 11 555,5,535, PPSMNPID APPROVED PROJECT W WEPT PROJECT Pp ASCENT PROJECTNO 13151,19211001 Preliminary 0191092024 4 OP 10 PM TOWNSHIP 6 NORM, RANGE M WEPT LAND SURVEY PLAT THE SOUTH 0,1E9113913P OF SEC 113 XL"=":Coo ��. <OF 9 LAND SURVEY PLAT SEC OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SL C 3 SECTIONS 2, 3, 11, 10, 14, 6 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. T5N R63W - _______-_--_-� WELD COUNTY, COLORADO - _�—-= van, (zr er - - -=w zaN6.e.µta, — SEC 9 T5N R63W Gat >ti NTY1/4 /4 SEC 10 T5N R63W RE4 = 28,024.490 se.NNIN = e,3.35, 4cr s ./- TIN IIIp0'�, G_ GRAPHIC SCALE: ',SNP 0suNG LEGEND 2.O1,O2INED NOLAND OR SETA, DESCRIBED asE-r MONUMENT AS DESCRIBED Z\ EASEMENT ASINDAGRENGEDONSREGrS PROPOSED LEASE BOUNDAD,SED NOTE FENCE, GOONS BARBED WINE OM MEASURES ID) IDECORI,SEE Nom. 51 SEC 11 T5N R63W Symbol LeoenE OWater Well APPROVED APPROVED GLP PROJECT W LAND SAPV,2 PLAT WENT PROJECT NO. Preliminary 01/10/2024 4 OS 16 PI, LAND SURVEY PLAT PANT OF THE SOUTH ONE2HALF SEC 29. RANGE SS WEST NTH FROGC1PAI. WD couvn.cvioww Eo�'" 50F9 LAND SURVEY PLAT SEC 16 T5N R63W B=I OYU SEC 10 T5N R63W APPPCMPO PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO II9H 22634 a O6) R OS Ir�ee,eeee�.o a� SEC 15 T5N R63W NE1 /4 016uIOPLEGEND IOPOT COSEMP FOUND OR 36i PP oEuaePD 66. MONUMENT,. DESCRIBED oEAMMMEMMIMMAENCEDo.MEM=,, aRSn = 19.5.9,626 S@ = 692452 ACRES gp 111 r / SEC >4 T5N R63W —�av¢mao----.`_,6ewMeiur� 11 i oi+nvE�Aam l� �I , -- --�a _ _ .1I APPMenaMaMen 6Enzeeeo ' SEC 22 T5N R63W PROPOSED LEESE BOUPOPPMPEE PPM 0, FENCE, STRAW MRSED WIPE MI RECORD MEE NOTE!. 41 Svmbol Leoend OW Water Well PPS PRESPERD APPROVED MP PROJECT W SPUR SURVEY PLAT CLIRSIEPROJECENO PROEM PROJECT?. 1390_0239001 Preliminary 01/10,2026 6 21 PM LAND SURVEY PLAT PART OF THESOLPIPISONESEIALF SRC 39. RANGE OWES'S. �IS��o� «m.I" 60F9 LAND SURVEY PLAT SEC 35 T6N R63W N0. 4 SEC 3 T5N R63W PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. WELD COUNTY, COLORADO t , ,‘ 9.79�Ez6,,.aE;�1 I N0. x2 -+ 'AREA = 2 ,838.686 se Fr. = 638.951 ACRES fi na��9�°� ss�.asbµllR> SEC 11 T5N R63W " 09PLOD, D,CO ONo DESCRIBED ser MONUMENT AS [...MED -- o EASEMENT ENCEoo.PRESS AS SESSION UNE SEC 1 T5N R63W PROPOSED LEASE BOUNDARY MEE PRE 71 SONDRA STRAND BARBED WIRE 151 RECORD ',SEE NOTE PP SI Symbol LeoenE OWater Well Plk APPPREPARSAVEn PPS OESSONED DP PREVIEW APPROVED SUMS OLE APPROVED PROJECT W LAND SURVEY RAT CLIENT IROJECT NO ASCENT PROJECT NO PRO_ESSE001 Preliminary /102024 4 06 25 PM LAND SURVEY PLAT PART OF THE SOUTH ONE -HAIR SSC RANGE SD WEST WELD «uN,y.ro,.oa noro, ,ors LAND SURVEY PLAT SEC 10 T5N R63W ij SEC 2 T5N R63W e=,° Strz,, PART OF THE SOUTH ONE-HALF OF SECTION 34, TOWNSHIP 6 NORTH, RANGE 63 WEST, 6TH P.M. SECTIONS 2, 3, 11, 10, 14, & 15, TOWNSHIP 5 NORTH, RANGE 63 WEST, 6TH P.M. 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RANGE WEST WE�11rvn.C,Io8 D « O 90f 9 Exhibit C Mine Access Route Kersey Mine_112 Reclamation Operation OWNER: CO 392 (HIGHWAY TO GREELEY AREA) NoCo SOD LEGEND 0 ACTIVE/ABANDONED GAS WELL CENTRAL DELIVERY POINT FACILITY STRUCTURE GAS WELL ACCESS ROAD CO 392 TO MINE PROPOSED ROUTE ON EXISTING ROADWAYS CO 392 TO MINE PROPOSED ROUTE ON PROPOSED ROADWAYS DIRT/GRAVEL ROAD PAVED ROAD PERMIT AREA BOUNDARY PARCEL BOUNDARY CO 392 (HIGHWAY TO CO 14 / BRIGGSDALE) )-]COUNTYR AD 67 COUNTY ROAD 68 (COLLECTOR ROAD) WELLS RANCH CHEVRON PROCESSING PLANT COUNTY ROAD 64 - PRIVATE ROAD / CONTROLLED ACCESS ONLY PERMIT AREA BOUNDARY 0 1250' 2500' I � MINE SITE ENTRANCE (NOTE 1) 5000' SCALE 1" = 2500' NOTES: 1. MINE ACCESS SHALL BE RESTRICTED BY MEANS OF SECURITY GATE & SIGNAGE. 2. PROPERTY ACCESS RESTRICTED BY WELLS RANCH GUARD SHACK. 3. SEE PROPOSED ROADWAY ON EXHIBIT D-1. WELLS RANCH GUARD SHACK (NOTE 2) PRIVATE ROAD PRIVATE RESIDENCE MINE SITE EXIT (NOTE 1) PROPOSED SAND PLANT COLORADO SAND COMPANY II, LLC PROJECT: KERSEY MINE TITLE: MINE ACCESS ROUTE DRAWN BY CHECKED BY: GW AJR APPROVED BY: DK DATE: JUNE 2024 SCALE: 1" = 2500'-0" PROD. NO. 53589 0000.0000 FILE NO A-5 MINE ACCESS POUT G EXHIBIT A-5 =2 Tr2C 1526 Cole Blvd, Suite 150 Lakewood, CO, 80401 Phone: (303) 792-5555 Fax: 970.484.3250 Hello