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Home My WebLink About20212713.tiffCOLORADO Division of Reclamation, Mining and Safety Department of Natural Resources 1313 Sherman St. Room 215 Denver, CO 80203 NOTICE Consideration of Construction Materials Reclamation Permit Amendment Application DATE: September 27, 2021 TO: Weld County Commissioners 915 10th St Greeley, CO 80631 FROM: Patrick Lennberg RECEIVED OCT 01 2021 WELD COUNTY COMMISSIONERS RE: Tucson South Resource - File No. M-2004-044, Aggregate Industries - WCR, Inc. Amendment Application (AM -2) Please be advised that on September 27, 2021, Aggregate Industries - WCR, Inc., whose address and telephone number are 1687 Cole Blvd Suite 300, Golden, CO 80401; (303) 985-1070, filed an application for a/an Amendment (AM- 2) to M2004044, Tucson South Resource, which is located approximately 1 miles West of Brighton, Section 12, Township 1S, Range 67W, 06th Principle Meridian, in Adams County. Amend the existing permit to add approximately 7.7 acres as a conveyor route to transport material off -site for processing. Match the Conditional Use Permit from Adams County. The application decision is scheduled for December 27, 2021. Written comments or objections to the application may be submitted to and additional information obtained from Patrick Lennberg at the Division of Reclamation, Mining and Safety, 1313 Sherman St. Room 215 Denver, CO 80203, by telephone at (303) 866-3567 x 8114. Aggregate Industries - WCR, Inc. is required to publish a public notice in a newspaper of general circulation in the locality of the mining operation once per week for four consecutive weeks. If you wish to make comments on or objections to the mine plan and/or the reclamation plan, they must be submitted within twenty (20) days of the date of the last newspaper public notice to be considered in the application review process by the Division. You should contact the applicant for the newspaper publication date. If we do not receive your comments or any objection by the end of the public comment period, the Division will assume you have no objection or comment to the proposed activity. Mot -03A -P 1313 Sherman St. Room 215 Denver, CO 80203 P (303) 866-3567 F (303) 832-8106 https://drms.colorado.gov Jared Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director Publ C ReV:e ) Cc:P1.CTP),P.►(SKIER /cr1/cK) 10113 /24 l0/6/z1 2o2I-2713 AGGREGATE INDUSTRIES-WCR, INC. TUCSON SOUTH GRAVEL MINE DRMS 112 PERMIT AMENDMENT SUBMITTAL M-2004-044-AM02 PREPARED FOR: Aggregate Industries — WCR, Inc. 1687 Cole Blvd., Suite 300 Golden, CO 80401 PREPARED BY: Civil Resources, LLC 8308 Colorado Blvd., Suite 200 Firestone, CO 80504 303.833.1416 DATE SUBMITTED TO DRMS: SEPTEMBER 9, 2021 I\ !! !,'r' BUR( I -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. I. 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. - 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. o Colorado Division of Water Resources with regard to water rights; • Colorado Department of Health, Water Quality Control Division, with regard to the discharge of pollutants into the State waters; o Colorado Department of Health, Air Pollution Control Division, with regard to the need for a fugitive dust permit; • 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 COLORADO DIVISION OF RECLAMATION MINING -&- SAFETY CHECK ONE: n There is a File Number Already Assigned to this Operation Permit # M2.004 _ 044 (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 2004 _ Q44 (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): Aggregate Industries-WCR, Inc. 1.1 Type of organization (corporation, partnership, etc.): Corporation 2. Operation name (pit, mine or site name): Tucson South Resource 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) sand gravel 5. Primary commoditie(s) to be mined: 5.1 Incidental commoditie(s) to be mined: 1. gold - 5 lbs/Tons/yr 2. 283.2 4.4 287.6 $2,696.00 $3,342.00 $2,229.00 $2,696.00 permitted acres acres acres application fee quarry application amendment fee conversion fee lbs/Tons/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: construction materials 5.3 Anticipated end use of incidental commoditie(s) to be mined: n/a -2- 6. Name of owner of subsurface rights of affected land: See Exhibit 0 If 2 or more owners, "refer to Exhibit O". 7. Name of owner of surface of affected land: See Exhibit 0 8. Type of mining operation: El Surface El Underground 9. Location Information: The center of the area where the majority of mining will occur: COUNTY: Adams PRINCIPAL MERIDIAN (check one): 6th (Colorado) a 10th (New Mexico) 17 Ute SECTION (write number): S 1 TOWNSHIP (write number and check direction): T 1 D North a South RANGE (write number and check direction): R 67 Q East 171 West QUARTER SECTION (check one): 11 ElE 17 SW QUARTER/QUARTER SECTION (check one): NE r361NATTittl SE SW GENERAL DESCRIPTION: (the number of miles and direction from the nearest town and the approximate elevation): approximately 1 mile west of Brighton, west of the South Platte River, on the north side of Hwy 7 at its intersection with Tucson St., Elev. 4060. 10. Primary Mine Entrance Location (report in either Latitude/Longitude OR UTM): Latitude/Longitude: Example: (N) 39° 44' 12.98" (W) 104° 59' 3.87" Latitude (N): deg 39 min 59 sec 37 68 (2 decimal places) Longitude (W): deg 104 min 50 sec 14 14 (2 decimal places) OR Example: (N) 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 Zone 13 Easting Northing -3- 11. Correspondence Information: APPLICANT/OPERATOR (name, address, and phone of name to be used on permit) Contact's Name: Chance Allen Company Name: Street/P.O. Box: City: State: Telephone Number: Fax Number: PERMITTING CONTACT 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: Aggregate lndustries-WCR, Inc. Title: Regional General Manager 1687 Cole Blvd., Suite 300 Golden P.O. Box: Colorado (303 ) _ 648-1175 Zip Code: 80401 (if different from applicant/operator above) Gary Linden Civil Resources, LLC Title: Sr. Engineering Geologist 8308 Colorado Blvd., Suite 200 Firestone P.O. Box: Colorado (720 ) _ 684-7221 ( Zip Code: 80504 Kimberley Dennis Aggregate Industries-WCR Title: Environmental Director 1687 Cole Blvd., Suite 300 Golden P.O. Box: Colorado (214 ( ) _ 213-7859 Zip Code: 80401 CC: STATE OR FEDERAL LANDOWNER (if any) Agency: Street: City: State: Zip Code: Telephone Number: ( ) - CC: STATE OR FEDERAL LANDOWNER (if any) Agency: Street: City: State: Zip Code: Telephone Number: ( ) - -4- 12. Prima future (Post -mining) land use (check one): Cropland(CR) D Pastureland(PL) Rangeland(RL) n Forestry(FR) ri Residential(RS) ri Recreation(RC) riDeveloped Water Resources(WR) 13. Primary present land use (check one : Pastureland(PL) Forestry(FR) Recreation(RC) 0 Cropland(CR) 0 Rangeland(RL) 14 Residential(RS) 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): Mine with excavation equipment, backhoes, front end loaders, material placed on conveyor, transported off -site. 15. On Site Processing: El Crushing/Screening 13.1 Briefly explain mining method (e.g. truck/shovel): No on -site processing List any designated chemicals or acid -producing materials to be used or stored within permit area: Petroleum products 16. Description of Amendment or Conversion: If you are amending or converting an existing operation, provide a brief narrative describing the proposed change(s). Amend the existing permit to add approximately 7.7 acres as a conveyor route to transport material off site for processing. Remove the former conveyor route part of the permit area from affected lands. Match the Conditional Usc Pcrmit (CUP) obtained from Adams County. -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 2-ip day of Q4) `-tin , 2_02_1 A 'yviilb.4-YioS- 1At/2. I I rtiC . Applicant/O rator or Company Name Signed: Signed: Title: State of IN\Cc� (Q,h 9),-A meaty ) ss. County of eS-1e...' S (M ) If Corporation Attest (Seal) Corporate Secretary erairowisMIZON Town/ Durlde . tthiign The foregoing instrument was acknowledged before me this 2-D day of �/SP p�-'l-e %1. b . r ? • by (At, • e,haf\C 2 )v Lt✓' as Ol (M a (2Q k. Q nOO -0 of ' ,S Jiih' `s SARAH GREGA NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20174007757 MY COMMISSION EXPIRES FEBRUARY . I . i GEC cJA, Notary Public My Commission expires: I Z it2 S SIGNATURES MUST BE IN BLUE INK You must post sufficient Notices at the location of the proposed mine site to clearly identify the site as the location of a RECEIVED SEP 10 2021 WELD COUNTY COMMISSIONERS September 9, 2021 Board of County Commissioners 915 Tenth Street P. O. Box 758 Greeley CO 80632 RE: Division of Reclamation Mining and Safety, Mine Land Reclamation Board (112) Operation Reclamation Permit Application, Adams and Weld County, Colorado; Tucson South Gravel Mine Dear Board: Aggregate lndustries-WCR is applying for a MLRB permit to mine sand and gravel at the project site. The site is generally between State Highway 7 and Weld County Road 2 in Adams County with a conveyor that will transport material along the west side of Weld County Road 23.5 between Weld County Road 2 and Weld County Road 2.75, in Weld County. As required by the DRMS regulations, we have enclosed the following information for your review: • Notice of Filing Application form • Construction Material Regular (112) Operation Reclamation Permit application form • Exhibit B Index Map • Exhibit C Mining Plan Map • Exhibit F Reclamation Plan Map If you have any questions, please feel free to contact me at 303-833-1416. Sincerely, CIVIL RESOURCES, LLC Gary Linden, P.G. Engineering Geologist J:IAggregate Industries-2971Tucson South Permit Support12021 amendmentlExhibit QINOTICE Cltr Weld Cnty Cmmsrs.doc Pub( Rev;eJ oq /22/21 �c:P<r(TP), PLJ(D4IEL/c i(a() 2O21-2713 o°t/ts/zt -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 fmancial 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 fmal 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. • - 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. o 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; o 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; o U. S. Army Corps of Engineers regarding a dredge and fill (404) permit; and o 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 COLORADO DIVISION OF RECLAMATION MINING -&- SAF ETY CHECK ONE: n There is a File Number Already Assigned to this Operation Permit # M2,1)°4 - 044 (Please reference the file number currently assigned to this operation) New Application (Rule 1.4.5) EiConversion Application (Rule 1.11) Amendment Application (Rule 1.10) Permit # M 2004 - 0.44 (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): Aggregate lndustries-WCR, Inc. 1.1 Type of organization (corporation, partnership, etc.): Corporation 2. Operation name (pit, mine or site name): 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 4.4 4.5 Tucson South Resource New Quarry Application Amendment Fee Conversion to 112 operation (set by statute) 5. Primary commoditie(s) to be mined: sand 5.1 incidental commoditie(s) to be mined: 3. / lbs/Tons/yr 5.2 Anticipated end use of primary commoditie(s) to be mined: construction materials 5.3 Anticipated end use of incidental commoditie(s) to be mined: Na gravel 1. gold _ 5 4. / permitted acres acres acres $2,696.00 $3,342.00 $2,229.00 $2,696.00 lbs/Tons/yr 2. / lbs/Tons/yr 5. / application fee quarry application amendment fee conversion fee lbs/Tons/yr lbs/Tons/yr -2- 6. Name of owner of subsurface rights of affected land: See Exhibit 0 If 2 or more owners, "refer to Exhibit O". 7. Name of owner of surface of affected land: See Exhibit 0 8. Type of mining operation: Ili Surface Underground 9. Location Information: The center of the area where the majority of mining will occur: COUNTY: Adams PRINCIPAL MERIDIAN (check one): 6th (Colorado) a 10th (New Mexico) Ute SECTION (write number): S 1 TOWNSHIP (write number and check direction): T El North South RANGE (write number and check direction): R 67 El East I • I West QUARTER SECTION (check one): E ® El El SW QUARTER/QUARTER SECTION (check one): El NE 1J NW SE SW GENERAL DESCRIPTION: (the number of miles and direction from the nearest town and the approximate elevation): approximately 1 mile west of Brighton, west of the South Platte River, on the north side of Hwy 7 at its intersection with Tucson St., Elev. 4060. 10. Primary Mine Entrance Location (report in either Latitude/Longitude OR UTM): Latitude/Longitude: Example: (N) (W) 39° 44' 104° 59' 12.98" 3.87" Latitude (N): deg 39 min 59 sec 37 .68 (2 decimal places) Longitude (W): deg 104 min 50 sec 14 14 (2 decimal places) OR Example: (N) 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 Zone 13 Easting Northing -3- 11. Correspondence Information: APPLICANT/OPERATOR Contact's Name: Company Name: Street/P.O. Box: City: State: Telephone Number: Fax Number: PERMITTING CONTACT 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: (name, address, and phone of name to be used on permit) Chance Men Aggregate lndustries-WCR, Inc. Title: Regional General Manager 1687 Cole Blvd., Suite 300 Golden P.O. Box: Colorado (303 ) _ 648-1175 Zip Code: 80401 ( ) - (if different from applicant/operator above) Gary Linden Civil Resources, LLC Title: Sr. Engineering Geologist 8308 Colorado Blvd., Suite 200 Firestone P.O. Box: Colorado (720 ) _ 684-7221 ( Zip Code: 80504 Kimberley Dennis Aggregate Industries-WCR Title: Environmental Director 1687 Cole Blvd., Suite 300 Golden P.O. Box: Colorado (214 ) _ 213-7859 ( Zip Code: 80401 CC: STATE OR FEDERAL LANDOWNER (if any) Agency: Street: City: State: Zip Code: Telephone Number: ( ) - CC: STATE OR FEDERAL LANDOWNER (if any) Agency: Street: City: State: Zip Code: Telephone Number: ( ) - -4- 12. Prima future (Post -mining) land use (check one): Cropland(CR) Pastureland(PL) El Rangeland(RL) JJ Forestry(FR) ' -! Residential(RS) Recreation(RC) 1-1 Developed Water Resources(WR) 13. Primary present land use (check one : 1_ Cropland(CR) Pastureland(PL) fl Rangeland(RL) Forestry(FR) BResidential(RS) Recreation(RC) Developed Water Resources(WRR) General Agriculture(GA) FlWildlife Habitat(WL) Industrial/Commercial(IC) E 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): Mine with excavation equipment, backhoes, front end loaders, material placed on conveyor, transported off -site. 15. On Site Processing: II Crushing/Screening 13.1 Briefly explain mining method (e.g. truck/shovel): No on -site processing List any designated chemicals or acid -producing materials to be used or stored within permit area: Petroleum products 16. Description of Amendment or Conversion: If you are amending or converting an existing operation, provide a brief narrative describing the proposed change(s). Amend the existing permit to add approximately 7.7 acres as a conveyor route to transport material off site for processing. Remove the former conveyor route part of the permit area from affcctcd lands. Match the Conditional Usc Pcrmit (CUP) obtaincd from Adams County. -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 If Corporation Attest (Seal) Applicant/Operator or Company Name Signed: Signed: Corporate Secretary or Equivalent Title: Town/City/County Clerk State of ) ) ss. County of ) The foregoing instrument was acknowledged before me this day of , by as of Notary Public My Commission expires: SIGNATURES MUST BE IN BLUE INK You must post sufficient Notices at the location of the proposed mine site to clearly identify the site as the location of a EXHIBIT B - INDEX MAP Please refer to the attached index map. -:� WCR 2.75 3946 • •S Len ri CC 5 L-1 TUCSON SOUTH RESOURCE AMENDED OFF -SITE CONVEYOR ROUTE • • Park MR 96" BRIGH x,..4'971.I\F: Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit B - 1 EXHIBIT C - PRE -MINING AND MINING PLAN MAPS OF AFFECTED LANDS Please refer to the attached Existing Conditions Map and Mining Plan Map. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit C -1 8 3 0 V a IMuxl�w'V*ii wr ea P. A UTILITY INFORMATION TRACT R 1' =500 GRAVEL MINING APPLICANT/OPERATOR: AGGREGATE INDUSTRIES-WCR. INC. 1687 COLE BLVD, STE 300 GOLDEN COLORADO 80401 SURFACE OWNERS: AGGREGATE INDUSTRIES-WCR. INC.(TRACTS A, B. D, E. F, H. AND M) 1687 COLE BLVD. STE 300 GOLDEN. COLORADO 80401 CITY OF AURORA (TRACTS C, G. K AND N) 15151 EAST ALAMEDA PARKWAY STE 3600 AURORA, COLORADO 80012 ADAMS COUNTY (TRACTS L & 0) ADAMS COUNTY GOVERNMENT CENTER 4430 SOUTH ADAMS COUNTY PARKWAY BRIGHTON, COLORADO 80601 YOSHI & SUZU, LLP (TRACTS P & 0) PO BOX 508 BRIGHTON, CO 80601 DOROTHY AND JAMES STRUCK (TRACT R) 507 COUNTY ROAD 23.5 BRIGHTON. COLORADO 80603 TOBY STRUCK (TRACT S) 527 COUNTY ROAD 23.5 BRIGHTON, COLORADO 80603 TRACT N UTILITY INFORMATION TAKEN FROM THE TUCSON SOUTH ALTA/NSPS LAND TITLE SURVEY DATED SEPTEMBER 7, 2018 BY CIVIL ARTS AND STRUCTURES SURVEY DATED SEPTEMBER 2, 2021. PLEASE REFER TO SHEETS C-2. C-3 AND C-4 FOR ADJACENT PROPERTY OWNERS WITHIN 200' OF PERMIT BOUNDARY. ADJACENT PROPERTY OWNER INFORMATION WAS PROVIDED BY ADAMS COUNTY AND WELD COUNTY RECORDS. FLOOD HAZARD LEGEND. EFFECTIVE ZONE AE AREA OF 1% ANNUAL CHANCE FLOOD WITH BASE FLOOD ELEVATIONS DETERMINED, AS SHOWN ON FEMA FIRM (MARCH 15, 2007) EFFECTIVE ZONE X' AREAS OF 0.2% ANNUAL CHANCE FLOOD; AREAS OF 1% ANNUAL CHANCE FLOOD WITH AVERAGE DEPTHS OF LESS THAN 1 FOOT OR WITH DRAINAGE AREAS LESS THAN 1 SQUARE MILE. AND AREAS PROTECTED BY LEVEES FROM 1% ANNUAL CHANCE FLOOD AS SHOWN ON FEMA FIRM (MARCH 5, 2007) EFFECTIVE FLOODWAY: THE FLOODWAY IS THE CHANNEL OF A STREAM PLUS ANY ADJACENT FLOODPLAIN AREAS THAT MUST BE LEFT FREE OF ENCROACHMENT SO THAT THE 1% ANNUAL CHANCE FLOOD CAN BE CARRIED WITHOUT SUBSTANTIAL INCREASES IN FLOOD HEIGHTS, AS SHOWN ON FEMA FIRM (MARCH 5. 2007) PRE -PROJECT .' MINING CONDITIONS: AREA IF 1% ANNUAL CHANCE FLOODPLAIN PER TETRA TECH STUDY (NOV. 2018 OR AS REVISED) TRACT. M TRACT E TRACT D TRACT C TRACT A TRAM:k. NO iM�INING O'N THIS 1 RAC - MINING AREA ACREAGE TABLE: AREA/PHASE TRACT PERMIT BOUNDARY AFFECTED AREA MINED AREA A 82.6 82.6 88.6 72.0 WEST/ 8 1.0 137.6 1.0 PHASE1 C 5.0 5.0 K 49v..0 OS D 14.4 14.4 139.4 83.8 E 30.7 30.7 EAST F 29.6 139 4 29.6 PHASE2 G 4.9 4.9 H 32.6 32.6 M 27.2 27,2 CONVEYOR N 3.1 7.7 3.1 7.7 0.0 0 0.1 0.1 P 0.1 0.1 Q 2.9 2.9 R 1.1 1.1 S 0.4 0.4 TUCSON ST L 2 9 2.9 2.9 2.9 0 0 TOTALS 287.6 238.6 155.8 I TUCSON SOUTH RESOURCE PRE -MINING AND MINING PLAN MAPS MINING NOTES 1. REFER TO EXHIBITS C-2, C-3 AND C-4 FOR ADJACENT PROPERTY OWNERS, SOURCE OF SURVEY/TOPOGRAPHY, AND BENCHMARK INFORMATION. 2. AN ENGINEERING STABILITY ANALYSIS FOR SLIDING FAILURE HAS BEEN PERFORMED. MINING OCCURRING WITHIN 200' OF A MAN-MADE STRUCTURE NOT OWNED BY THE APPLICANT/OPERATOR HAS ADEQUATE SETBACK FOR SLIDING FAILURE. THE LIMIT OF MINING EXCAVATION PER THE GEOTECHNICAL SLOPE STABILITY ANALYSIS IS SHOWN ON EXHIBITS C-2, C-3 AND C-4. 3. FOR THE WEST AND EAST CELLS, THE OPERATOR WILL USE DRY MINING TECHNIQUES AND EXCAVATE MATERIAL BY BACKHOE, BULLDOZERS, AND SIMILAR EQUIPMENT, THE MINING FOR THESE PHASES WILL INVOLVE INSTALLATION OF A SLURRY WALL, DE -WATERING ACTIVE MINE AREAS AND PUMPING IN ACCORDANCE WITH THE DISCHARGE PERMIT. 4. TOPSOIL AND OVERBURDEN STOCKPILES SHALL BE TEMPORARILY STORED IN THE AREAS SHOWN. THE STOCKPILES IN THE FLOODPLAIN SHALL BE ALIGNED PARALLEL TO THE FLOOD FLOW DIRECTION OF THE S. PLATTE RIVER, HAVE MAXIMUM HEIGHT OF 30', A MAXIMUM LENGTH OF 300', MAXIMUM 3H:1V SLOPES, AND A MINIMUM OF 100' BETWEEN STOCKPILES. S. OVERBURDEN AND TOPSOIL STOCKPILES ABOVE EXISTING GRADE, THAT ARE EXPECTED TO BE PRESENT FOR OVER 1 YEAR, WILL BE SEEDED WITH A TEMPORARY SEED MIX AS WEATHER PERMITS. 6. OVERBURDEN AND TOPSOIL STOCKPILES MAY BE STORED IN THE BOTTOM OF THE MINING CELLS IN EAST AND WEST MINING AREAS AS LONG AS THE TOP OF THE STOCKPILES ARE BELOW THE PRE -MINING SURFACE ELEVATION. 7. STOCKPILED TOPSOIL WILL BE SEGREGATED FROM OTHER SOIL. 8. THE OPERATION WILL INVOLVE CONCURRENT MINING AND RECLAMATION WITH FINAL SLOPES BEING 3H; 1V, AND PLACEMENT OF 6" TO 12" OF TOPSOIL ON ALL RECONSTRUCTED AREAS ABOVE THE PROPOSED HIGH WATER LEVEL OF THE FUTURE RESERVOIR; AND OTHER DISTURBED AREAS AS NECESSARY. 9. CIVIL RESOURCES, LLC IS NOT RESPONSIBLE FOR SAFETY, IN, ON, OR ABOUT THE PROJECT SITE, NOR FOR COMPLIANCE BY THE APPROPRIATE PARTY OF ANY REGULATIONS THERETO. 10. A MINIMUM OF TEN (10) FEET OF CLEARANCE FROM ANY EXISTING POWERLINE OR FUTURE POWERLINE SHALL BE MAINTAINED AT ALL TIMES AS OUTLINES BY STATE STATUES, 11. UTILITIES SHOWN ON THIS PLAN WERE FIELD LOCATED AT THE TIME OF PLAN PREPARATION. FOR SAFETY, THE OPERATOR SHOULD LOCATE UTILITIES PRIOR TO SLURRY WALL CONSTRUCTION, OR MINING ACTIVITY. 12. PRIOR TO DISTURBANCE OF ANY WATERS OF THE U.S. AGGREGATE INDUSTRIES, INC WILL GET APPROPRIATE APPROVALS FROM THE U.S. ARMY CORPS OF ENGINEERS. 13. NO IRRIGATION DITCHES WILL BE DISTURBED. LATERALS THAT SERVE THE PROPERTY WILL BE REMOVED. 14. 1HE MAXIMUM SLOPE UN EASIERN HIL,H WALL EXLAVAIIUNS THAT ARE 400 FEET OR LESS FROM THE SOUTH PLATTE RIVER SHALL NOT EXCEED 3H:1V BETWEEN APRIL 1 AND SEPTEMBER 30. 15. THE MINING LIMITS SHOWN HEREIN ASSUME SIDE SLOPE AND 3H:1V (EAST AND WEST AREAS) AS DESCRIBED IN THE SLOPE STABILITY AND SETBACK UPDATES MEMO (TETRA TECH, NOV 8, 2019). DEVIATIONS FROM THE ASSUMPTIONS MADE IN THE MEMO IMPACT THE ALLOWABLE GEOTECHNICAL SETBACK. THIS MEMO DOES NOT DOCUMENT SETBACKS THAT ARE BASED ON MUTUAL AGREEMENTS OR ADAMS COUNTY REGULATIONS. Sheet List Table SHEET SHEET TITLE NUMBER C -I EXHIBIT C COVER SHEET & MINING NOTES C-2 EXHIBIT C PRE -MINING PLAN WEST AREA C-3 EXHIBIT C PRE -MINING EAST AREA C-4 EXHIBIT C PRE -MINING PLAN WELD COUNTY CONVEYOR AREA C.G EXHIBIT C WEST AREA MINING PI AN C-6 EXHIBIT C EAST AREA MINING RAN C-7 EXHIBIT C WELD COUNTY CONVEYOR AREA MINING RAN C-8 EXHIBIT C MINING PLAN DETAILS CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR. INC_ AGGREGATE INDUSTRIES-WCR. INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. GARY LINDEN 09/0912021 DATE Know what's below. Call before you dig. I\ II NI ti 1. ( I L, 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 W W W, CIVILRESOURCES. COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 80401 214213-7859(P) KIMBERLY DENNIS NO, DESORPTION REVISIONS DRAWN BY: CI CHECKED BY: GL_ DATE: AUGUST21 SC -RI E: AS NOTED AS NOTED JOB NO.: 297.001.09 CWG NAME: L.: EFIII5i e T Aift P[(y.WA'{ON P.M cavEN.o.q EXHIBIT C COVER SHEET & MINING NOTES SHE C-1 9 EicPlgi C, NVM'] P.M IMP in ! 2U2' C3K 44 1 I �,` I\ �,._� tE-\\\a''3\ 1 { I I / /111I I\ i I } \ l I / I` I \ •• - \ \ \`L -..1-t —\ \ —_.,� \\N.\\\\At \ \ l I I / f� 1 �1 \\\\\\\ I I �� \\111 I I r ailr� I LEGEND: i �� WTc��;4 -. \ ( (11 \\ \ `- \ " '' Nam 4-$\\ / ,\ ,, ,_ \\\\ \\\\\\\ \ \\ I I ( J xl \ I \ \ \ \ \ \� MATCHLINE: SEE VIEW 2 THIS SHEET \ C.......I.1--- �� \ \ I \ \ \� �C ' MINE PERMIT BOUNDARY EXISTING OVERHEAD / 1 J 1 ---. - -- _` \1\\ \\111\ \ 11{ Y I \ \ \ \ \ \ 1 Xi OE ` ----'\ \ . l \ \ \ \\111 \1\ \ \ \ 0 I \ \ \ \ \ \ \ \ I I `,y J \ \ ( \ x ‘ / TRACT BOUNDARY ELECTRIC LINE 111 1 \ \-� \� \\ ��\\ - \1111111111{ \ \� 1 I I I G EXISTING GAS LINE ' N. - - \ \ \ / / I 1.j 1 1 \ x \ ` 1 ( EFFECTIVE FLOODWAY --I 36 3 CIVIL WI - Slit) CFS \\ \\ { I 11 1 \ i i j°,o n � \ IIl 1 11 1 11 \ \ { i 1 / / / / \ 1 \ IT I III I I I W EXISTING WATER LINE \ ` \ \ \\\ ` \ \\ \ \ \ \"I'll{ I ) 1 I I 1 \ \ 1 \ ` 1 I 1 I f I \\\\' I 1 \ \\ \ \ \ I I III \ \ \ - - 50.0' CONVEYOR \ \,. �J EASEMENT _// / -1- _ _ EFFECTIVE ZONE AE TELEPHONE LINE \ 1 \\ \ \ I III I I I \ \ 1 \ 1 y 1 I \ 1 \ x \\ I \ 1 I \ \\\\ \ \ I { •,. 1 I- . \ OT EXISTING \\ \ �I I I I I I I \ \ \ y \I\ \ \ ( x I 1 \ I \ \ \ \ \ x .E '� _ / — EFFECTIVE ZONE X WM1.. ,FRIrt EXISTING ASPHALT ROAD \ \ I I I \ \ \ \ I \ \ i I 1 1 \ I 1 ZONEX \ / aa PRE-PROJECT/MINING ., 8308 COLORADO BLVD \ \ \ \� 'ii \\\\\\I{\ II 1 11\ \ \ \ J I 1 1 \ \ \ Ww 49 I f 1 SUITE 200 \ 1 y I I \ I ' I \ \ 'A \\ ,1 CONDITIONS 100-YR FLOODPLAIN 11 \ \\ \ 1 \\\ 111\III \ 1 I I1{ 1 \ 1 1 I 1 \ \ \ H to LI l EXISTING SOUTH PLATTE RIVER . wadmAvenuE . FIRESTONE, CO 80504 SI ,a\\\� I D x\ III I 1 1 \ \ \ \ \ \ i ' ' \. 4 EXISTING EDGE OF WATER 3D3.833.1416 \ \\ x71 1 \ 111 1 1 \ 11 \ x I s 1 N \ \ \ \ \ ', \\\ \ \11 \ 1 \ Il\ l \ 1 \ \ \ \ \ \ _=c. __x___ `� MW -I WELL LOCATION WWW.CIVILRESOURCES.COM \\ \\ �\ \ x 4900 EXISTING T CONTOURS MONITORING \ �\ \ \ x 1 r/ VIII \\ \ \\\ \ 1 \ \ \�\ \ \ \ \ lx 1110\1 \ \ I\ \ 1 } \ \�� \\ 1\\ , l\ / ( \\ / O 8 OUSTING FENCE WITH WELL ID # ellnR . CM CF \ \ \ \ \ \ \+ \ \ \ \ \ x x x x `` \ \ 1 \ '1 / _ ALLLOCATION WITH 11. 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J/ 1 •'• ) { `\ j//T / v� J NCEL(iii f!ijE163THfrA/E i /T0DDCREEK II f I • A Y1r- 1 ! / JII/ ' I 7TIIP • /ctie / I �/ j 1 ilrr EsASGMGNT ( HHP5 `I ' W1111 I .t, 25'BUFFER L� I -c / /�' \ / . ..�. 119� 1 \ I T i \ ` .."„/ / + t o 1 I / it I J •, ( / / / \\ 'J l l f / A-6 / THE \ / ) / // ES �11 ./ (I / \ / - 1 6 28 I i ti (/ \ , l / \ / i r ` / 1 I f7 HP8 Ic.1 J1 —� �/ \\ /� _\w �1 / / / II \ \ J ) .111 l' � / ./_-N \ \ 1 // WW -47 R /p / / 1 �`\\ I \ 1� rt,'1 / I / / /•THW11 / s �s C \ \ 1 ) •\ I f / m an o0.„ lei / / I rr I / II \ / /,/ / r / \\ \I _ / )/ lt,f ^,"A 1)� \\ /,'' i l e 1�' 1 11%j�y ' HP4/ \ \\�\ r•1'\+ / \ \ �� ' I, / i - HP16 • 12 0 /n / / i' I \ xi�� \ (111 I \\\1 /!.1 cox f�Il / • X831 \ I ) \ CITY OFs / q / / ' I \ x / _ A-9 R \•\ 1 I I III ` / H� e j/ - / r1 \ k`r \ AURORA rr \ \ 1 \ + I\\ f yI f / / / _ — •. ` \ I I' ( / - WA ' A-10 1\ \ \ \ ',- + /11111 \ I ' f 11 ,f VI. I I -' /z ., \ \ 1 \\ � d f ( II :.},r I , \ B6 1 , / / ��---� ,- 2,/W , c \ _ I \ 1 1 i \\\ —� '� \l CITY OF AURORA \\\ 1 file? i,.l,(lI/! I / l I 1 1r/7/ r`• / / _ r. HP3 x \ \ r \ \ \ \\ \ CHALLENGER RESERVOIR 2EET X / l,.y�,r ( I r 1 / ! / ;E,_ 4 / \ r• i) • + ( • THW1 I / \ \ l \1 TfIIE \ \ \ \} 4 ` ` 11 I \\ 1 / (CONTOURS NOT SHOWN) II \ AlTON C//� (l .r . { / a ( \ \ \ \ \\/I \ ( \ \ kli\C\t(kN‘kk‘ o EASEMENT AND/OR ROW' ( (/ r \ B P? t l� ' \ \1 \\ \` _ I1\ f\N\\IlFx1� \ \ � 1 l 3 � 1 30' WEST AND 50' EAST OF / + / \ A-8 HP 4 .�' .1 r \ \\ \ \ \ � 1 \ \\ \ ` / ) I \ 1 )k \ I \ / \ rn Z DRAWN BY: C 1 DATE: AUGUST 21 l = ❑l C LINE \ \ N. ( I f \ \ ;,1.;. I — — - 25' BUFFER 60' ROW —1d \ \ \ �� O I Ili? / N�/ f . J� ��y 1 I I1 — 1 \ \ I 1 t 1 \ I 1 50.0' AS NOTED r! I J • .•.. 1 \ I ) CONVEYOR EASEMENT \��1 1 En CHECxED 8T; a SCALE: L�c�17(� fIf // 1 1 /r 11( I `1 / 6 18 I ` _ CITY OF AURORA `� _ 10'ROW ® HP` ` I 11\\l( \\\ // ) / 7� / / % \ \ \i D w AS NOTED // /., �� / + I I L'Z`' 11' CULVERT t A-7 WATERLINE EASEMENT RESERVED / 1 / / ) ) \ \ \ I f / 1 I / l ) \ �, --' JOB NO.: 297.001.09 // 7/ I // II f / r ! I DENT / _ , ! / --- ( r I I J `\ \ 1 '- / / f I A I I / DWG NAC1e:. NAP.7wq lI1) i 1! /., T. ! /j 1 \ I� I\ 1 1 7 maw CNN:MG 0..I I f ( 1 f rJ I - HST _ 3, 6 23 /\ 1\ f I i ( ) ,c I 1 y \ {}-, \I I 1 - j;>✓ / / I I 1 f ` I ( / f /rI \ \1 : /-- ❑ MW _ \\\\)( 1:' I I max- x_ -&-x 11 J �._ Iw -6 I + / rJl I 1 Bz'H+P10 CNN. / I I ! I \ H1 ! 1 �1D / /t/ /11 I/ / 1 634 HPI ) _ 1 J \ 1 I ��/rr f ( � _ .:I -- '.�A \ \ 11)\hl ZONEX l 1 III �'I . �_ �_ ti J / o EXHIBIT C �_` `�� ■t __.=M I \\+ , I ! � o , �: -.- ,_. =�_� �c w 1 ,I 1 33 I } \ ( / O Inc., _:'� I _ -..-sue .__�r�� ^ I \1' \ ) HWY 7 � x t l 1 PLAN (ROW WIDTH VAREES) ` . I E �\ 11. PR PRE _ -MINING ,\ 1 \1 . 1 /l � (\ - ,'\\ \ \9 I I \ - -,-.. DANE'. O ` _`�� - r/ / J / �.. 9 J B-26 E �..svw 1\\I 1\ l I i o ._ LINONRDNALD < III.. -- ^ _ - ; i WEST AREA � �o •;— _--- / \\ ( 111. I ;' r A?ir..,$ . �r / / IOU r f to 811 <2.c -b.., ADDISON � __ _� ; 11 _ I ,/ ,o / /" &:M \ ; • / x 1 \\ I 1 \ I\ _ // _ x• , 1 \ _S- 1 \ / /��`1 •'L< t.i ..Lit ic.r.. — _ — /174i�+•- 1111 N4R'n _ \ , wt►--�A fit` -. f' ,. � < � . ;� � �� DE 3 t'�==__—_ // ' � Mil�ilt MU1/ / "•�'■ �' r � A! `� : I 11I11111f/r � � DEIDr�s eA� (}1 , I I ! � 1 v. S.W. CDR. S.E. 114 � 1 I�� SHe�, \� 1 \\\AIIII / { s h _ BRETIAPRILBAKER(}) sec. ' \ i _ 2'° MW -4 0 MATCHLINE: SEE VIEW I THIS SHEET . All �� '' �. I \ L! * _s.w.1r4 _ _ . I(nowwhat's below. / '•• / ' A"GREGATE B -3S \ 1j 'I ! , / 111 MET) C — 2 R r / ` I' N.W. CDR. N.E. t /a lrmusrRlEs ( VIEW 2 Call dig. \; /• c.. • ( `. before you ° ,- I 1'.=20'0 / - .I. / 3'•ili N.W. 114 SEC. 12• A� • VI W 1 ,ir��ll �y Q. ( \ AY IMP S.. MIJW"C1607 IV s I -1 MATCHLINE: SEE VIEW 1 SHEET C-2 \II /l I //// I I` j /// // / / II / / / ' El / / / / w44-2 /2 / / / / - / / / CITY OF THORNTON I // 7. / �R RESERVOI \ i / i Id 4.—_ _ N — \ 20' TODD CR EK 30' TODD CREEK UTILITY WATERLI E EM NT & WATERLINE EASEMENT � \' �_ ` `,r -�� \ - `�� _r - � 4 - N N 1 1 13 - -9 T-HE2A- ---��-\ GT6 GT2 N / s GT3 \ A-12 THE1 8-31 EAST AREA APPROXIMATE LIMITS OF EFFECTIVE FLOODWAY 14 ,� 60' ROW I • I ) 10' ROW RESERVED ` W W CC 1- w I u AEIThlE13 I J / 25' BUFFER / OWNER SAN MARTIN CABALLERO LLC THE1 1 HWY 7 (ROW WIDTH VARIES) PER APRIL 2002 UDFCD MASTER PLAN STUDY RIVER BAIJC NA5 BEEIJ STABILIZED AL1D RESTORED MI TI -1 I S AREA TODD CREEK UTILITY & WATERLINE EASEMENT APPROXIMATE LOCATION TOP OF RIVERBANK PER UDFCD MASTER PLAN PER APRIL 2002 I ODFW MASTER L PLAID STUDY .' RIVER BANK 1-FA5 BEEN STABILIZED� AMD RESTORED IM TF-F I S AREA • / TODD CREEK FACILITY EASEMENT OWNER CITY OF BRIGHTa APPROXIMATE LIMITS OF EFFECTIVE ZONE AE N • 0 MW -11 C I. (FORMER li 9 LOCATION) / ) 2,2 • r -� APPROXIMATE LIMITS OF EFFECTIVE FLOODWAY 1 / \ / r OWNER JASON 6 AMBER MURPHY OWNER COLORADO STATE HWY tic. Jim. t Y _ WW -45 B 1 / / LEGEND: I I 1 1 1 1 I I I I I I I I 1 I I I MINE PERMIT BOUNDARY TRACT BOUNDARY EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING EDGE OF WATER 4900- - EXISTING 7 CONTOURS x x x x EXISTING FENCE EXISTING EDGE OF ROAD UE EXISTING ELECTRIC UNE EXISTING OVERHEAD OE ELECTRIC LINE G EXISTING GAS UNE W- EXISTING WATER UNE OT EXISTING TELEPHONE UNE PROPOSED SLURRY WALL PROPOSED 2' CONTOURS ms RESERVOIR ACCESS ROAD Nay eaP Val NHWL 0 EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER RESERVOIR ACCESS ROAD NORMAL HIGH WATER UNE PROPOSED COTTONWOOD TREE (LOCATIONS SUBJECT TO CHANGE) PROPOSED SHRUB BEDS (LOCATIONS SUBJECT TO CHANGE) PERMIT KEY MAP I NTS CERTIFICATION. THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-IA/CR, INC. AGGREGATE INDUSTRIES-WCR, INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING AND SAFETY INFORMED OF ANY CHANGES To THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE STRUCTURE ID STRUCTURE DESCRIPTION OWNER ADDRESS RECOMENDED OFFSET PER STABILITY ANALYSES (FT). STRUCTURE AGREEMENT OR MHFCD OFFSET(FT) ACTUAL OFFSET FROM MINING LIMITS (FT) STRUCTURES TO BE REMOVED A-12 WW -12 AGGREGATE INDUSTRIES VCR INC. 1687 COLE BLVD SUITE 300. GOLDEN, CO 80401 A-13 1,1W-13 AGGREGATE INDUSTRIES VCR INC. 1687 COLE BLVD SUITE 300 GOLDEN, CO 80401 - -- A-14 WW -14 AGGREGATE INDUSTRIES WCR. INC 1687 COLE BLVD SUITE 300, GOLDEN. CO 80401 A-15 WAL15 AGGREGATE INDUSTRIES WCR INC. 1887 COLE BLVD. SUITE 300. GOLDEN, CO 80401 .. A-16 WVV63 AGGREGATE INDUSTRIES WCR. INC 1687 COLE BLVD. SUITE 300, GOLDEN, CO 80401 A-17 WVV.18 AGGREGATE INDUSTRIESWCR. INC. 1887 COLE BLVD SUITE 300, GOLDEN, CO80401 - -- A-18 PRIVATE RESIDENCE AGGREGATE INDUSTRIES WCR INC 1687 COLE BLVD SUITE 300. GOLDEN, CO 80401 -. -- - STRUCTURE ID STRUCTURE DESCRIPTION OWNER ADDRESS STRUCTURES TO BE PRESERVED 6.21 FENCE COLORADO DEPT OF TRANSPORTATION 2829 WEST HOWARD PLACE DENVER. CO 80204 35 - 55 B-21 STATE HIGHWAY 7 COLORADO DEPT. OF TRANSPORTATION 2829 WEST HOWARD PLACE DENVER, CO 80204 35 133 B-23 GAS LINE XCEL 414 NICOLLET MALL MINNEAPOLIS, MN 55401 35 -- 104 6.24 TELEPHONE UNE CENTURY LINK P 0 BOX 2560 OMAHA, NE 88103 _ 35 81 B-25 TUCSON STREET ADAMS COUNTY 4430 S ADAMS PARKWAY BRIGHTON CO 80601 35 84 6-26 GAS LINE XCEL 414 NICOLLET MALL MINNEAPOLIS MN 55401 35 '58 8.27 WATER LINE TODD CREEK FARMS METROPOLITAN DIST NO 1 7550 EAST 152ND AVE.BRIGHTON, CO 80602 35 21 200 8.28 OVERHEAD ELECTRIC POSNER POLES UNITED POWER. INC 500 COOPERATIVE MY, BRIGHTON. Co 80603 35 126 B-29 FENCE AGGREGATE INDUSTRIES WCR INC. 1687 COLE BLVD SUITE 300. GOLDEN, CO80401 35 56 8-30 FENCE CITY OF AURORA 15151 E ALAMEDAPRAY, AURORA, CO80012 35 57 8.31 TELEPHONE UNE CENTURY LINK P 0 BOX 2560 OMAHA NE 68103 35 - 81 B-32 OVERHEAD ELECTRIC POWER POLE5 UNITED POLhfR, INC 500 COOPERATIVE WAY, BRIGHTON. CO 80603 35 -- 176 B-33 OVERHEAD ELECTRIC POWER POLES UNITED POWER, INC 500 COOPERATIVE WAY. BRIGHTON Co 80603 35 51 B-34 UNDERGROUND ELECTRIC UNITED POWER, INC 500 COOPERATIVE WAY, BRIGHTON CO80603 35 58 8-35 FENCE SAN MARTIN CABALLERO LLC 13110 E. 160TH AVE BRIGHTON. CO 80601 -- 250 6.36 RIVERBANK STABILIZATION MILE HIGH FLOOD CONTROL DISTRICT 2480 W. 26TH AVE.. SUITE 156B. DENVER. CO 80211 44 20,3 200 ma] B-37 RIVERBANK STABILIZATION MILE HIGH FLOOD CONTROL DISTRICT 2480 W. 28TH AVE . SUITE 158B, DENVER, Co 80211 44 200 200 mr 8-38 HIGHWAY 7 BRIDGE COLORADO DEPT OF TRANSPORTATION 2829 VEST HOWARD PLACE DENVER. CO 80204 338 B-39 THORNTON RESERVOIR CITY OF THORNTON 9500 CIVIC CENTER DR., THORNTON, CO 80229- 4326 335 B•40 OVERHEAD ELECTRIC POWER POLES UNITED POWER. INC 500 COOPERATIVE WAY. BRIGHTON. CO 80603 - -- 2235 B-41 OVERHEAD ELECTRIC POWER POLES UNITED POWER. INC 500 COOPERATIVE WAY. BRIGHTON. CO80803 - -- 776 B-42 168TH STREET ADAMS COUNTY 4430 S ADAMS PARKWAY BRIGHTON CO 80601 -- -- 2350 B-43 WATERLINE PUMP HOUSE AND APPURTENANCES 7550 EAST 152ND AVE.BRICHTON. CC 60602 -- 20 143 TODD CREEK FARMS METROPOLITAN DIST. NO 1 B-44 GUARDRAIL COLORADO DEPT OF TRANSPORTATION 2829 NEST HOWARD PLACE DENVER, CO 80204 35 -- 162 B-45 NUMBER INTENTIONALLY NOT USED NA .. -- - B-46 UNDERGROUND ELECTRIC TODD CREEK FARMS METROPOLITAN DIST NO 1 7550 EAST 152ND AVE.BRIG'3TON. CO80802 - 20 173 8.47 PRIVATE RESIDENCE AND OUTBUILDINGS FERNANDO ARMA.NDO DE LA CRUZ BRECEDA 16400 TUCSON STREET, BRIGHTON. CO 80601 -- -- 292 B-48 PRIVATE RESIDENCE AND OUTBUILDINGS FERNANDO ARMANDO DE LA CRUZ BRECEDA 16400 TUCSON STREET, BRIGHTON, CO 80601 -- - 675 B-49 OIL AND GAS FACILITY GREAT WESTERN OPERATING COIPANY 1001 17TH ST., SUITE 2000. DENVER CO 80202 - - 916 B-50 ACCESS ROAD AGGREGATE INDUSTRES Wl t. INC. 1687 COLE BLVD. SUITE 300. GOLDEN, CO 80401 -- -- 83% B-51 RRIVATE RESIDENCE AND OUTBUILDINGS CHRISTOPHER MUHLER 11585 WELD COUNTY RD 2. BRIGHTON, C080603 - -- 2405 8-52 NUMBER INTENTIONALLY NOT USED NA — •• — B-53 B-53 FENCE THORNTON 9500 CIVIC CENTER DR . THORNTON. CO 60229- 4326 — -- 315 B-54 GRAVEL ROAD CITY OF THORNTON 9500 CIVIC CENTER DR.. THORNTON, CO 80229- 4326 — •- 320 ' Obet s selec d torn nearestteabare " AcUal bet s measured from analyzed in sdbbty analyses be feat re Is be me limes 0 100 Poll L UPI Cart I'-2JU Know what's below. Call before you dig. Cceise (;IVII RI-StIDURCI-S 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 W W W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE ,UU GOLDEN, COLORADO 83401 214-213-7859(P) KIMBERLY DENNIS REVISIONS oeSOLIPIION DATE DRAWN CHECKED 8Y: a_ DATE: AUG.'S'?; SCALE: AS NO -E AS NO -L_ ]CB NO.: 297.001.09 ,Nrxtiln c 1u:NG nw..r.f.e EXHIBIT C PRE -MINING EAST AREA SHE= C-3 MATCHLINE: SEE VIEW THIS SHEET OWNER an OF AURORA r R rh i S 50.3CONVEYOR EASEMENT MATCHLINE: SEE SHEET C-3 OWNER YOSHI NC S12U L13P CANER YOSHI NC 512) LLLP r-__ % • 168TH AVENUE - LEGEND: 11111)111 J 1 1 1 1 1 1 1 I 46 IC LIE x MINE PERMIT BOUNDARY TRACT BOUNDARY EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING EDGE OF WATER EXISTING T CONTOURS EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC LINE CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR, INC. AGGREGATE INDUSTRIES-WCR. INC. WILL KEEP THE DIVISION OF RECLAMATION MINING, AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. GARY LINDEN 09/09/2021 DATE MW -I H 4 EXISTING OVERHEAD ELECTRIC LINE EXISTING GAS LINE EXISTING WATER LINE EXISTING TELEPHONE LINE EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER MONITORING WELL LOCATION WITH WELL ID # WATER WELL LOCATION WITH WELL ID# EXISTING TREES UTILITY POLE SECTION CORNER MONUMENT NOR"H PERMIT KEY MAP N -S STRUCTURE ID STRUCTURE DESCRIPTION OWNER ADDRESS RECOMENDED OFFSET PER STABILITY ANALYSES (FT) STRUCTURE AGREEMENT OR MHFCD OFFSET (FT) ACTUAL OFFSET FROM MINING LIMITS (FT) STRUCTURES TO BE PRESERVED B-55 GAS LINE XCEL 414 NICOLLET MALL MINNEAPOLIS, MN 55401 B-56 TELEPHONE LINE CENTURY LINK P 0 80X 2560 OMAHA. NE 68103 8-57 TELEPHONE LINE CENTURY LINK P 0 BOX 2560 OMAHA, NE 68103 B-58 WATER LINE MOUNTAIN VIEW WATER USERS P 0 BOX 485 BRIGHTON. CO80601 B-59 GAS LINE MSTERN MIDSTREAM 99501M000LOCH FOREST DR STE. 2800 THE WOODLANDS TX 77380 B60 GAS LINE WESTERN MIDSTREAM 9950 WOODLOCH FOREST DR STE 2800 THE WOODLANDS TX 77380 B-61 PRIVATE RESIDENCE ANC OUTBUILDINGS KYLE L STIDHAM 186 COUNTY ROAD 23.5 BRIGHTON CO 80603 6-62 FENCE CITY OF AURORA 15151 E ALAMEDA PKW( AURORA CO 80012 B-83 FENCE CITY OF AURORA 15151 E ALAMEDA PKWt, AURORA CO 80012 B-64 OVERHEAD ELECTRIC POWER POLES UNITED POWER. INC 500 COOPERATIVE ANY. BRIGHTON CO 80603 6-65 WELD COUNTY ROAD 23 5 WELD COUNTY DEPT OF PUBLIC WORKS 1111 H ST . GREELEY. CO80631 1356 WATER LINE CITY OF AURORA 15151 E ALAMEDA PKWY. AURORA CO 80012 B-67 TANK BATTERY PDO ENERGY PO BOX 1899, ORANGE BEACH. AL 36561 5-68 TANK BATTERY PDO ENERGY PO BOX 1899. ORANGE BEACH. AL 36561 5.69 OVERHEAD ELECTRIC POWER POLES UNITED POWER. INC 500 COOPERATIVE WAY. BRIGHTON. CO80603 6-70 PRIVATE RESIDENCE AND OUTBUILDINGS HALL IRWN AGGREGATES LLC 301 CENTENNIAL DR, MILLIKEN. CO 80543 B-71 PRIVATE RESIDENCE AND OUTBUILDINGS JAIME MEJIA FRANCIA 638 COUNTY ROAD 23.5. BRIGHTON CO 80603 B-72 PRIVATE RESIDENCE AND OUTBUILDINGS TOBY L STRUCK 527 COUNTY ROAD 235, BRIGHTON. CO 80603 B-73 TANK BATTERY SYNERGY ENERGY 106 FORD LANE. HAZELWOOD. MO 83402 , B-74 GRAVEL ROAD CITY OF WESTMINSTER GO DIR. OF PUBLIC LARKS 4800 W 92ND AVE WESTMINSTER CO80031 B-75 VELD COUNTY ROAD 2.75 WELD COUNTY DEPT OF PUBLIC WORKS 1111 H ST.. GREELEY CO80631 0 i 1M (RI INN 1.s200, MATCHLINE: SEE VIEW THIS SHEET Know what below. Call before you dig. ( I . H RI ti ≥( h( I ` 8308 COLORADO BLVD SUITE 200 FIRESTONE, CC 80504 303.833.1416 W W W,CIVILRESOURCES, COM AGGREGATE INDUSTRIES 1687 COLE BL'JC, STE 3UU GOLDEN. COLORADO 80401 214-213-7859(P) KIMBERLY DENN?� REVISIONS NO. DESCRIPTION DATE DRAWN BY: CI CHECKED BY: SQL JOB NO.: 297.001.09 WCNAME ro..rw DATE • AUGUST 21 SCALE. AS NOTED AS NOTED EXHIBIT C PRE -MINING PLAN WELD COUNTY CONVEYOR AREA • G PANS" 1/114021 '009(AM 1U9?.9.l. hmlrns-29Ti..l..r Eo4th Aso,. a 314 'OD ea nl$ltire loth Nye Convoy vii eCT 4 / 1, LEGEND: I MATCHLINE: SEE VIEW 2 THIS SHEET �... C>'- 1 `" \� \ ` I l \ �� I 1 / i \ �I \ MINE PERMIT �: 1 \ --Li 1 \•••••••\\\.\\N \ \ l I I 1 ) �} �II• I� ,,�\ \1♦ . \ ��-\ *I �(! I BOUNDARY I -A..: • \\ \_�\\\\\\\\\\\1 I \` / \ -\\ I j S l 1 \ I I \ •I II I TRACT BOUNDARY 36 - \‘\\\\\ \\\ 1 X44. \ / -� _�__ \\\\ \\\ I / I l 1 I \ \\\ \ \l1 \ \ t I h\� \\\ \ \�\\��-/ 1 \ \ 1 \ \ --I - — }\ 1 ( \\ �_`\ �\ ,_ 11\ I\1\ 1111, I\1\\ \ \ \ 1 1 1 1 J 1 1 I 1l *\ \ \ _- �� \ .. .\�\. 1 11 \ \11 11 111 1\ 1 \ I \ \\ I' I I i I I I I I I I I I I EFFECTIVE ZONE AE 33 L,; 8308 COLORADO BLVD � \ z.\♦ \\ \ I N. \ \ \ 1Y11111100\1%1\1 1 1 l\ 111 \ \ 1 I I f / 1 1 1\\\\ 1 \ \ \ 1 \ 1 1 I 1 I .\�� - \ \ — \�\ 1 I - - EFFECTIVE ZONE \ \,. \ ZS as • .i / SUITE 200 \ \\ N.\ \ l I \ \ t 11 \ \ 1 I l I ( \ T -- / 1 } 1 \ \\ \ I - 50.0' CONVEYOR EASEMENT / 1 \ I X . . o -A t ,. SA,,, ' tgs{N A4NUE �� FIRESTONE, CO 80504 \ \ \�lI \ WO \ 1 1 l 1 1 } . \\‘.$ \ \ ,_ ` \ H1111;1111" \ / PRE-PROJECT/MINING c. ` : --•, 303,833.1416 \ N. \ \ \ \ I \ 11 I I 1 \ 1 \ \\ \ \ \ 1 I I \ 1 1 \ ` \ \ \ , \ \ 111 \ l 1 \ \ I I \ 11M 1 1 \ `` I CONDITIONS 100-YR FLOODPLAIN 1.' } W W W.CI03.833.1416 .CON \ , \11 \ 1 l\\ 1 1 1 I \ \ \ ' \ \ \ \ \ I I\ EXISTING WETLAND BOUNDARY E ' \ \ 1 \ \ \ ♦ \ \ 1 I 1 1 I \ " \ \\ \ \�\\ I l 1 I l I \ , \ \ \l J \ MVO) m AURORA ' . THORNTON ''J ` 1 f ` \\\ \ I 1 \ I 11 + �\ \ ' 1 RESERVOIR \ \ 1 11\ Il \ 1 \ \ \ \ EXISTING RE9ERVJIR n : \ \ \ \ 11 \\��` ♦` \ \ \ 1 j 1 N \ I I I l \ 11 1 1 \ \ 1 \ 1 \\ 1 l \ N \ \ \� \ \1\\ \\ �JI' I i 'I�r1 iM 1 \ WETLAND BUFFER �s ass .m j� „ 1 111 \ 1 \ \ \ \ '\\ �_ , 1111I1"k \\1\ 1 111\\ \ .1 1 ` EXISTING EDGE OF WATER I \ \ \ a / \ \ \ \ ` N / \ \ \ { 11 11 \ 1 \ 1 \ \ \ \ \ \ \ 1 \ \ 1 I 1 I \ 11 \ \1 \ \ \ \ 1\\\\ l\ \ 1 ‘‘\\\ 1 \ \ \ \ \ 1\I 1 \ \ \ •\ \ \ \ \ \ \ \ \ \ \\\\\ 1 1 / I \ \ \ \• \ 1 CITY OF AURA CHALLENGER RESERVOIR CONTOURS NOT SHOWN) \ ' I 4900 - EXISTING 2' CONTOURS x EXISTING FENCE EAR' AREA N. t \ \\ \ \ \ ) 11� n \ 11 \ \ \ \ /A x x x �; s{ -3 ; ._/ \ \ r \ \\ \\ \ \ 1 \ \ \ \ \\\ \ \11 \ \ \ ( r A Q \ i 1 / / i //.' .. \ \ \ i I EXISTING EDGE OF ROAD • // arl �\ a� \\\\\ 1 \ \1 I \ t\ r r 1 ,/ I \ \a ./�. / \ •\ \ \ \ 11 \ ( EXISTING \NA - `s. \\\\\\ 1 \ \ \ \\1 \ \ \ \ L / \\\ \ \ \ \ ( / / / /q. / E E E ELECTRIC LINE ! ,f KINr 1 > /IR.a, -.• — \ \\ \\ \ 1 \ I \ 1 I / 1 ( EXISTING OVERHEAD •• \ — 0 -- \ 1) 111\\\\\ \ \\\1/4\\ \ \ %/ / OE \s, ; ` '"'. I Q \ �-, M \\ \ \ \ 1 \ ) 1 / \ n \ _ \ \ 1 • \\ �, \ I I I \\ 1 \ \ \ \ 1 I \ II\I\\\``\\\\\\ \\\ \ \ I I ( \ 1 I \1\ 1\ ( / // 'y / \ / •\ /I/ 1 i if ^ 1 \ 1 / \\ GO►JVEYOR , ELECTRIC UNE G EXISTING GAS LINE \OR H AGGREGATE INDUSTRIES COLE BLVD, STE 300 \ 1 \ / / \ 1 // 1687 \ \\ \ \ I ) r \ \`� '. \\ ; ( 1 7 1\ //I �� , �\ \\ ROUTE I - PERMIT KEY MAP �� GOLDEN, COLORADO 80401 \ _ / tl`\\ \1/41, `\\ i EXISTING WATER LINE \ \ \ �1 W 1 II //)�l /\ \. N •` 1 l I 1 I 1 \ 11 \ \ / / 1 \ r I I I \ 1 \ \ ♦ EXISTING TELEPHONE LINE NTS 214-213-7859(P) \ - _ % \ \ N. / l // N. \ \ 't / / U., I \\\\ \ \ \ \ 11 \ \ 1\\ \\ \ \ I )11\11\111\` \ \. 1 1 I ! I I J \\ /� I I Ir/ 1 \ �/ //i/ . / / \, -- I 1 / / ) ) \I / ( OT KIMBERLY DENNIS \ /. // \ \ \ ( ( ( 1 \,\ 1 1 1 \ l \ '0 , \\\ 1 1 II 1 \ t \ \ ` \\ \ \ \ ) \ / / ) r./ / / 1 1 1 f / // ! 4' Iy, / / i // / \ �I� I / //I J / r \�� I\l J l I / \ \ I PROPOSED SLURRY WALL LIMIT OF MINING EXCAVATION \ 1 \ \ \ \ 11j1\,\\\\\�\\\ 1 11O 1,\\\\ \ / r \ ••' \\ \ 1 ; . 1 I ! / / // / / \ 1 s � �/ I r I / / \ \ 1\ tl J PER SLOPE STABILITY ANALYSIS \ \ If;‹ i.;/i(r��/ 1 l //� �\ \\ 1 / > SURFACE DEWATERING TRENCH /� ✓� :.a. ,-• • 171.1 CERTIFICATION: -' \ \ \• \\/ T \ I r Jr � �__ _ _ �Sr / \ I / = I w DW DW 12" PIPE FOR DEWATERINGr \ \ \ \ \\\ - \ \ \ \ _ \\\ \' 111\1nQ\' '\ / 30/ TODD ClkEEK U I ITY/%- ~ �' --_ —DW f - \ \ \ \ \ \ — \ \\\ \ \r - -_ \\♦\' \ \\1 \ 1 / 8 W TERLINE EA SLURRY // Jf;� AWALL MATCHLINE THIS MAP WAS PREPARED BY CIVIL RESOURCES LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES•WCR. INC. Il,l \ \\ \\Q \\\�`/I 1 // l A/ / \ - \\ l / CONVEYOR AGGREGATE INDUSTRIES-WCR, INC. WILL KEEP THE DIVISION OF U \ \ \\` V \'. 1F r I j f \// I SETTLING POND/ \ 1 \ --.- ,- - -- \ \t \ \ \ IL, I �s,l� ) I I ! III r / I/ / / r �/ / ' ( / J / C-8 DISCHARGE POINT -�� ' I RECLAMATION, MINING, AND SAFETY INFORMED OF ANY CHANGES TO Ce Q I \ \ 1 \ 1r� / / I I I 1 / i' (fir 1 -,,---_ PROPOSED ACCESS THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS r \ \ N. \\ \ ,, / /1 / / / % _ — \ W I \ \ /' /\/ / D \ \ 1 \ \1 4. • \ \ I / / ti �! I\ AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS I 1 \ \ -- \ \ \ \ / / •••-. s\ / ! / `r /BURIED GONVEYOF2 —mss* I I �%�%�%�i�� THROUGHOUT THE LIFE OF THE MINE. 0 , \ \ \ \ \ t1 \\NCI \ I 1 1 J/i / 1 /.��^� //. �, �i. i OVERBURDEN STOCKPILE NECESSARY Q 1 \ \ \ \ \ \ 1 / / / / i / / G20SSINi� TO BE u Z I \ J J I 11 1 / : �'// / +"I �j (/� I 1\\ / 1 IKISTALLED °URDU& MIMING I N.\ \ ♦� // c I �G / l l ( r / / ff/ //( i N WEST CELL ((+ / ��} TOPSOIL STOCKPILE ,,; 09D W Q I I \ r •l/(/ % �„ J / / LIMIT OF MINING CL in J I I \ \ H / / / / „,„,7,, // / / / / r / 2EMOVED D . H X21 GARY LINDEN W a. \ \ 1 \1 'IiIi ) / EXCAVATION - 'f 1 I . / \\ llrl({ f�' l l l / Y / ��f� / 1/1/ 1, / �,�a�•--•--- TOPSOIL SCREENING BERM = I I ♦\ \\ \\ \ \\I I (ASSUMES3 1 SLOPE) , ` (e .,..Jd:: 90 vavv-v r. vvvvH W/ GRASS COVER II `/ r/(/ \ /i/rrrr +( f,/ J I'{ I I d CD ( 1 I \ / \ 1 J I/// /1 ! I\ l;I Z \ ( r(i�l�. '12"�_ I I \ l Y(�llr/ �� PIPE Fo ' If I I I 11 I/ POND/DISCHARGE POINT 1\ \ \ l I\/(!-��,!,>%;'///, / /► i r rIr DEWATERING I OU SETTLING NO OT 0 4l. ( 1 \ rrr. /// �, f/,l ►1 l i 1 Z \ I \\1 , 1 f , I 1,,H I,I III ~C I \ \111( \1 f/ / // li. G:!/ 1 1 IlI ill If y/ 1 I / N R 1 UNDERDRAIN AND DETAILS ARE PRESENTED IN EXHIBIT G. \ \ I I �! �/ / ///(r ; / _ t l ^ ASPHALT ROAD CC)_ Z L H rl " EXISTING l l I r--� (�5/i' / I J i I III 1 1 / / /) )11\\l ( / // / • //:-/ \ WEST AREA I I 0 1 / / I ! /// I J i r - 1 l (- •' l t' c0 _ IIII I)11( ) I / // //i j j/i// / 1//i� i/// r/ J / {I llrrrl �l 1 / l 11� I __ / 1 3 1 U EXISTING SOUTH PLATTE RIVER 11 %i l J -/ U /),1 ) !r / r * / l / / 1 r !l 1 .� 2 ice♦ 1 LI W i / /j J / / // // . I \ 7 UDFCD STABILIZATION /if)/ bSCv �� = —' /• APPROX 7� WIDE / / / J / / - w • / - I I _•1i . 1 �� ROW j ( 1 ! ifxT / / \ /• NT l \ \ 1 / "-{ �� ! / 1 O I ,� 7/J/ / )? / �. I Q I"'' I in . - . EXISTING WETLANDS $9g/,'i / Sr3�/ /l �%/pllf / ( 11, 1 ) r�1r ) j I / / /I / \ \�/► T� / /1 -' ( • +- co � 1 :I Ns, II 'I!•I in ham\ '/ -- /,i \1\1\\'1 - J//� ) ) 111 _- /...ii '"/ l\rll///r/ X11// 1/ 1/I f It/ I r I / r II, 111 1 l 1 I / / I 1 I I J / /%. / J �/ /1 \.-�\ it / r /'- / f I I ��t t� ► I "A��• I II`n w (A lii \ 'i//11 r�l/J j 1 1 ( II I r1/11 /: y\ 1 �1—t__ ..' / / / �\_/" \I .- `� I coil Z J 1=��:% r I 1I i i / ��.• I I /I I/ a' ‘I / / I I U ♦` /i /i/1 / 1 I ( / //,�, / I . Th —� \ I / r I I I MATCHLINE: SEE SHEET C-7 REVISIONS II ( // I 1 / / _ I. ~ II �� r \/ // 1O1 / (/ rr t_� // /// I I I /1 �! /f \•\ ) / / ` ABAMDOIJED - \ \ I r� 1�1 Q NO. DESCRIPTION DATE I; ICI ii ! // J \k 1 I ♦\ \/~4 DITCH LATERAL Ire , ti 'AMU )■� \ \ / )II \ J+ TO BE 1 \ / / / /. 1\ / / "::.t r� BASELINEwI\ )1 / / 1)• \ �— - I -Co.... \ r �,I I / .{ *% ' 1 JI v DEMOLISHED I " - - / r I Ill\ / / / / / r ' N.. .• . • �`\r�l ��. IY l/.l �\� \ •J I— \ ( /iii / / / 11, 1 \ l T} 1 \ r 1 DURIIJ6 INITIAL r / \\ 0 \ I t`>>ti r r r \ / y - 1 ; I I I j 1, __ ri)\�1114I`, / _ " I \ \\ , PHASE o� 1 \ IIl I / '/ u; II '/J / 1 ( / / I' I I/7/ 1/ r � _ ' �' , _.. / v l I MINIMS — I •I'.CI {` II SIP? 1 TODD CREEK / EASEMENT 1 I t J • '/ • r,1 1 - • F� , / •- \ 11 I/ p' I �� { �' \ 1 1 �I 1 1r \ 1 / oFFSITE CONVEYOR ! 1 / 1 • / \ ROUTE ' °\ I l Ilgi `\ \J I !1 , , \V 1 4�. / / z. \1, z, I T._ . i7 z `i:!:ri \ \ 1� \ \ \ t f ielliiIII r / I / j / 1 I , Ali &, ' \. I . 'j , I / / 'TiD///h /ERBURDE h (I I TI,TJ��J.J`1, /ERBURDE \ .,% r, V/V///ii JERBURDE - -- . $\ �,I, \ \ I I 1 C> 1 (f I I I I 1 I1\ // , \ / -\ / 1 v / 1I l I s I► l / 'ERBUF /JAZ/. v\ 1 \ \ \ \\_/1 ‘lek11)111 / 1 CC I ljllJrp I / 7 / / / r l P\\\" V 1 11 I I , ( / f i Y/ %1 �.� �i J \ A I I iii _ 1 II, I / / / I -\- \ / I7 \ 1 \ 1 I \ 1 111 \ ` 11I Il �.." F \ II I'lll /4 %J \0 - 'o \b �� \\ �/ ;/c1-\\\ ,� l`/ii % -\ �l f / I // / ( ( 1 / ll �j 5 // ` _' • \ \ \ . \ I(Illl) \ / / / /( / v // l.�� / q �I.'i '1 ` \ llfll \ f ( / 1 .// / e(kl, I —et' %f ;,h 1 n //�•\ \ 1NCITYOFAURORA \ \i \ I 1.f /;I'I 1 rr�Irfly// BRIbhITON 1 .r �� -- \ \\ \ i \ 1 \ \ - \�\--� ♦1 3 11\x\ \\ I CHALLENGER RESERVOIR t lr I \ / +' CMTCH r 11 _ J \ l 1, \ v \ . \ INCONTOURS NOT SHOWN II ( �� EASEMENT AND/OR ROW 1 t 4 �: i - / \ \ \ \ 1\ \ \\ .4._ 1k1\1 1 t � i I I 1 \ \\ \ \ \ 1' �/ 1 / \ 1 I I „ ( 30' WEST AND 50' EAST OF 1 I \\ `'�' / r/ i \ f �� 1 \ { \ 1 1 1 1 1 N / / 1I I '� \.: R,$GR�B�D C u „ \�J \ \\ 1 1• \ / \ \ ? ( \\\ lI\\\DRA\1'NV: SL DATE: AUGUST21 I , 7I� \\ /�. .9 ( 1 I \ ) \ \ CHECKED BY: c,� SCALE: AS NOTED I Ii /a•7wl•/ / I\11\L 1 J 1 1 1 t 1 ,r4, r I Ilt \III ( / I r \1 \ r f I I r! r 1//J / r\`_ 4 \ \ \ I!) 1 % \ ://- / / 1 \ \AS / 1 \ I NOTED \I 1/4;1 11 Y 111 / / \1 I ' I \1 ]OB NO.: 297.001.09 rUl ( /1//11013/4/ 1// 1l ! I II I ±� 1 I Ir j� 1 / \ / _ WATERLINE EOASEMENT /l 1> / J 60 ROW I e / I 1\\\\I\ I \ 1 1 1 /j / II I f I ( l 1 I\ I% ( \\ I DWG NAME:: -sans ctws-,a [m.,r> KINDS ays I // ( 1 ; .> I I ` \ \ ) r�' 1 I I I •! (�If f/' ,° fig J' / II I I/// // rf l r /II 1 II 1 1 1 f SEMENT (, jt l' 9999 ` / J oo'. . o0O ..o --.:_°' l ROW I _ - ' TOPSOII Ell \ R VED •' • wovvovv I\\ 4 \ _ \ \ — .\ \ 1 I 1 1 r I I (1 il ( I i I \I1 / / / / I \ I J/ \ 1 I/I I\_t0' I �, r �Ir�Ir // I r I 1 r 1 ( / Ill 1 ■ r ��_ .. , \ SCREENING • I ( \ \ \111j \ 1 / /1 1 / I ! / / / \_ I 1 �;I I' �� _ vvvvv. \ /• 1 // u / I I I l ( r 1 ( I 1 I 1 I _ — _ -- _ v v -vv ', BERM . 1 .) 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SEE VIEW 1 THIS SHEET /, / (//.{. f — ■ .. / MATCHLINE: sst� - - -�� 7/ !�� i� / i .. /i - e= = - ) H� below /: _ - Knew what's VIEW 1 VIEW 2 Can before dig i1"■. you MATCHLINE: SEE VIEW 1 SHEET C-5 Z� O 1 OFFSITE ABOVE GROUND CONVEYOR ROUTE EXISTING POND 1\ \20' TODD CRE K i r WA _ LINE EASEMENT SLURRY WALL BURIED GOAIVEYOR GROSS I Alb TO HE I AISTALLED DUR I AI& M I MI MG IM WEST CELL ARID MEA1 REMOVED 12" PIPE FOR DEWATERING \ \ / 7 -•-••••• .C••••. EAST AREA - NO SURFACE STOCKPILES EAST OF EFFECTIVE FLOODWAY LIMIT OF MINING EXCAVATION (ASSUMES 3:1 SLOPE) /\ I SLURRY WALL -F: I �\ \ ` \ —J l / Ns•No. � \� I ♦ CITY OF THORNTON RESERVOIR Yak— TODD CREEK UTILITY & WATERLINE EASEMENT SETTLING POND/ DISCHARGE POINT 17 APPROXIMATE LOCATION TOP OF BANK PER APRIL 2002 UDFCD MASTER PLAN 1> (J _ 1 / TODD CREEK FACILITY EASEMENT •,: 1 ‘3/471 / I r 1 / 4(' '4111j \ DV; 1 L w I / EXISTING UDFCD I, I / EASEMENT illll ,l / I / .1111' I I I r 1 1 c I / I / c C / r \ I 1 I 1111\\:%' \\ I 1 11 1 P/ O C r a w / N I r 1 I I Pen ( PrW) 1' =2JU LEGEND: I I I III! ITT!!!! I I I x -4900- x x x E E OE W G E OT DW OW OW V I. 0• '' t •a-• ............. O MINE PERMIT BOUNDARY TRACT BOUNDARY EASEMENT EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING WETLAND BOUNDARY EXISTING WETLAND BUFFER EXISTING EDGE OF WATER EXISTING 2' CONTOURS EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC LINE EXISTING OVERHEAD ELECTRIC LINE EXISTING GAS LINE EXISTING WATER LINE EXISTING TELEPHONE LINE PROPOSED SLURRY WALL LIMIT OF MINING EXCAVATION PER SLOPE STABILITY ANALYSIS SURFACE DEWATERING TRENCH 12 PIPE FOR DEWATERING MATCHLINE CONVEYOR PROPOSED ACCESS OVERBURDEN STOCKPILE TOPSOIL STOCKPILE TOPSOIL SCREENING BERM Wi GRASS COVER SETTLING POND/DISCHARGE POINT EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER UDFCD STABILIZATION EXISTING WETLANDS S AL h_ 36 1 n \a 4- N,LT ASEA \OR -N PERMIT KEY MAP NTS CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR. INC. AGGREGATE INDUSTRIES-WCR, INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING. AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09:2021 GAR" LINDEN DATE Know what's belOW. Call before you dig. CIVIL RESVURCES 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES. COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS TUCSON SOUTH RESOURCE EXHIBIT C EAST AREA MINING PLAN REVISIONS NO, oesaelvnoN DATE DRAWN BY: CI DATE: AUGUST 21 CHECKED BY: 'SCALE ' AS NOTED 297.001.09 1OB NO.: ^. WG NAME;_ sm r _ w- .u. [*wr n n,n,c a..._.p EXHIBIT C EAST AREA MINING PLAN C-6 I I WCR 2 3/4 MATCHLINE: SEE SHEET C-3 I 1 r] o 168TH AVENUE It' T I0L ton (ii PRr) 1'=200' LEGEND: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 - 4900- x x x E w E OE G 01 DW DW OW V V V V Y."t10.• O MINE PERMIT BOUNDARY TRACT BOUNDARY EASEMENT EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING WETLAND BOUNDARY EXISTING WETLAND BUFFER EXISTING EDGE OF WATER EXISTING 2 CONTOURS EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC LINE EXISTING OVERHEAD ELECTRIC LINE EXISTING GAS LINE EXISTING WATER LINE EXISTING TELEPHONE LINE PROPOSED SLURRY WALL LIMIT OF MINING EXCAVATION PER SLOPE STABILITY ANALYSIS SURFACE DEWATERING TRENCH 12" PIPE FOR DEWATERING MATCHLINE CONVEYOR PROPOSED ACCESS OVERBURDEN STOCKPILE TOPSOIL STOCKPILE TOPSOIL SCREENING BERM W/ GRASS COVER SETTLING POND/DISCHARGE POINT EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER UDFCD STABILIZATION EXISTING WETLANDS 36 ISSM AVerA,c ;)? Mao I c am t_ cu -v a A.lidrA RESERJYR n WEST AREA N Co Ev, CITY OF TNP7r1 Ot: RESEIWOF m 1 A6- APE iPA* I I I - P< / a AVENUE', )R -- PERMIT KEY MAP NTS CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES WCR INC. AGGREGATE INDUSTRIES-WCR. INC WILL KEEP THE DIVISION OF RECLAMATION, MINING AND SAFETY INFORMED OF ANY CHANGES TC THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE Know what's below. Call before you dig. 1 H. I I:I 5-41t hl 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WW W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 89401 214-213- 78S9(P) KIMBERLY DENNIS REV15imM DESCRIPTION DATE 1 RAi1:N BY: CI DATE: AUGUST 21 CHECKED BY: GI SCALE: AS NOTED AS NOTED ]OB NO.: 29].001.09 ^. WG NAMFX1 EXHIBIT C WELD COUNTY CONVEYOR AREA MINING PLAN 5HEF C-7 • GRASS COVER 10'-12 (TYP) HIGH BERM TOPSOIL TEMPORARY GRASS SCREENING BERM NTS EXISTING UTILITIES NOTE: 1 TUCSON STREET THIS DETAIL IS INTENDED TO BE CONCEPTUAL DESIGN INSTALLATION OF THE CONVEYOR CROSSING BOX UNDER TUCSON STREET IS SUBJECT TO APPROVAL OF ADAMS COUNTY PUBLIC WORKS DEPT. AND COORDINATION WITH EXISTING UTILITIES. TUCSON STREET 0 CONVEYOR CROSSING DETAIL NTS CROSS SECTION ENTRANCE WOAD —ikte +Av+1 F]<IGIING FAVtWNT FIRST Ml1C TNICKNESS ERD3101. 1DFPTT VA 31F3 CONTROL run W M* (CLASS Z NINA LAYER OF (MOMS TIlk Al INN 801104' TRACKING PAO -Y CLEAN MATERIAL 30'1 40' _s PARKIN. STC1NCURB BLOCK 90' PARKING STGPrCURB TYPICAL BLOCK DESIGN BO' ROW 10' ROW RESERVED a L■ L u tit_ SURFACE MATERIALS: COMPACTED TYPE 2 BASE WITH CLEAN WASHED GRAVEL USED IN THE PARKING AREA THE ENTRANCE ROAD TRACKING PAD SECTION WILL IIAVE A MINIMUM 61N DEPTH OFT CLEAN GRAVEL A SMALL BERM WILL BE BUILT ALONG THE BACKSIDE OF THE PARKING SPOTS FOR A BACKUP STOP EXISTING UTILITIES 168TH AVENUE NOTE: 1. THIS DETAIL IS INTENDED TO BE CONCEPTUAL DESIGN. INSTALLATION OF THE CONVEYOR CROSSING BOX UNDER 168TH AVENUE IS SUBJECT TO APPROVAL OF ADAMS COUNTY AND WELD COUNTY PUBLIC WORKS DEPT. AND COORDINATION WITH EXISTING UTILITIES. 168TH AVENUE CONVEYOR CROSSING DETAIL NTS CONVEYOR N NOTE: MAINTENANCE ROAD MINIMUM 25' SETBACK SEE NOTE #1 TUCSON STREET 1. CONVEYOR ACCESS AND MAINTENANCE ROAD SHALL BE SETBACK A MINIMUM OF 25' FROM TUCSON STREET. ON -SITE ABOVE GROUND 3� CONVEYOR SYSTEM DETAIL / NTS Ow - TUCSON STREET 60' ROW 10' ROW RESERVED 20' 90' PARKING LOT CROSS SECTION ENTRANCE ROAD EXISTING GROUND MIN 6" THICKNESS EROSION CONTROL 2- BASE MATERIA_ (CLASS 2) WITH A LAYER Of GEOTEXTILE AT THE BCTTOM EXISTING PAVEMENT (DEPTH VARIES) • PARKING STOP/CURD MOCKS 40' ENTRANCE ROAD 30' PARKING STOP/CURB TYPICAL BLOCK DESIGN 'LI L _ a' 97' TRACK.NG PAD - 2" CLEAN MATERIAL SURFACE MATERIALS COMPACTED TYPE 2 BASE WITH CLEAN WASHED GRAVEL USED IN THE PARKING AREA. THE ENTRANCE ROAD TRACKING PAD SECTION WILL HAVE A MINIMUM 61N DEPTH OF 2' CLEAN GRAVEL. A SMALL BERM WILL BE BUILT ALONG THE BACKSIDE OF THE PARKING SPOTS FOR A BACKUP STOP. s WEST EMPLOYEE PARKING LOT TYPICAL DESIGN NTS EG SLOPE TO DRAIN - TYPICAL SURFACE WATER DIVERSION CHANNEL - J NTS 10 EAST EMPLOYEE PARKING LOT TYPICAL DESIGN NTS LENGTH 8 WIDTH VARIES: SEE TABLE SLOPE TO DRAIN 3' FG CELL POND DIMENSIONS WEST 140x140 EAST 155'x155' TYPICAL DEWATERING POND CROSS SECTION NTS EG T -POST PRE -MINING GRADE LIMIT OF MINING EXCAVATION ±75' 3' SLURRY-„ WALL RECONSTRUCTED 3'1 SLOPE ; rl INTERIM 0.5 1' SLOPE - PRE -MINING GRADE % LIMIT OF MINING EXCAVATION RECONSTRUCTED 3:1 SLOPE , • , 30' SETBACK TO TEMPORARY EXCAVATION 10.0' RESERVOIR ACCESS RD 2 U' EXISTING EASEMENT SECTION NTS 200 MIN 30.0' <t r TODD CREEK FARMS METRO DISTRICT NO 1 WATERLINE (LOCATION VARIES) PROPERTY LINE INTERIM 0.5 1 SLOPE l Y I A d' !' I' f` f' !/ ,f' • ,f' .Y f' iY - BARBED WIRE ;/ i; .d' r , , I' I' AV ,r ,r Ar ,i' A' se 10' I' GRADE 3 -WIRE FARM FENCE DETAIL NTS SLURRY WALL SETBACK TO TEMPORARY VERTICAL EXCAVATION EXISTING UTILITIES RESERVOIR ACCESS RD VARIES EXISTING EASEMENT 11ICM � SECTION \ _ J NTS WCR 23.75 TODD CREEK FARMS METRO DISTRICT NO. 1 WATERLINE (LOCATION VARIES) UNDERGROUND POWERLINE PROPERTY LINE OR LIMIT OF MAXIMUM DISTURBANCE SOUTH PLATTE RIVER NOTE: 1. THIS DETAIL IS INTENDED TO BE CONCEPTUAL DESIGN. INSTALLATION OF THE CONVEYOR CROSSING BOX UNDER WCR 23.75 IS SUBJECT TO APPROVAL OF WELD COUNTY PUBLIC WORKS DEPT. AND COORDINATION WITH EXISTING UTILITIES. WELD COUNTY ROAD 23.75 CONVEYOR CROSSING DETAIL NTS CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR, INC. AGGREGATE INDUSTRIES-WCR INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING. AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE Know what's below Call before you dig. ( VII I< F 5 'Its) I I 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 3UU GOLDEN, COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS TUCSON SOUTH RESOURCE EXHIBIT C DETAILS C Ev:s;oNs N0. f'=IE.7-R 1771 ON DATE DRAWN BY: SL - CHECKED BY: GL DATE: AUGUST 21 SCALE: AS NOTED AS NOTED JOB NO.: 297.001.39 WG NAME: <n;:u1 _ <Ar 00.(TISL 3) M.11% 5w._.c EXHIBIT C MINING PLAN DETAILS SHEE- C-8 ] AAn ITFOMF 1rttrs-I9TTucwr South Sin we$ prapa.Nhsw rpATetre Ted) New Conveyor \C-5 EXHIBIT C EAST AREA (CHASE 3) MINING PLAN dw.. EXHIBIT F- RECLAMATION PLAN MAP Please refer to the attached Reclamation Plan Map. Aggregate Industries— Tucson South Amendment — MLRB 112 Permit Application Exhibit F -1 a yT1 .qh Font u:reaidr nv. cD C hr cy * C,----„," civil arFs'ItouKc:Fs 8308 SUITE 200 LORADO BLVD FIRESTONE, CO 80504 303.633.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES. COM j- '` TUCSON SOUTH RESOURCE RECLAMATION PLAN MAPS s.. .,^: ..... -;,-,74;:..„ " x ", ' a ' TUCSON RESOURCE SOUTH SHEET I INDEX „ .. SHEET NUMBER SHEET TITLE "'"'" ' r' *'^" - M % F-1 EXHIBIT F COVER SHEET & RECLAMATION NOTES AGGREGATE INDUSTRIES F-2 EXHIBIT F WEST AREA RECLAMATION PLAN F-3 EXHIBIT F EAST AREA RECLAMATION PLAN (ti%• ' .. F-4 WELD COUNTY CONVEYOR RECLAMATION PLAN F t, . TRACT :- 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS Ir _ - TRACT N w TRACT Ni w TRACT I z - - I L,--1 TRACT (3 I ( L.; TRACT N - Y a ^: I i 7 --TRACT L t9 • tY 11.1 r ' CERTIFICATION: 2 _ _ . Z TF;hCT G Q O J a I THIS MAP WAS PREPARED BY CIVIL RESOURCES. LLC. IN I COOPERATION WITH AGGREGATE INDUSTRIES-WCR, INC. (an fa- LU I THE DIVISION OF rt .' 1 5 Ir AGGREGATE INDUSTRIES-WCR, INC. WILL KEEP - RECLAMATION. MINING. AND SAFETY INFORMED OF ANY CHANGES TO - — i __ f:1:Z f THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS __ Q \, AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS = TRACT A I NECESSARY THROUGHOUT THE LIFE OF THE MINE. I TRAM_ " F H H TRACT P r - D TRACT P TRACT (: i T A._T 4- I 09/09/2021 r / X Z 0in GARY LINDEN DATE w Z TRACT 5 ti + U O w - - `� I RECLAMATION NOTES CC ., I U 1 ` - U= qN NEF G:TC ! - /- � BRIGHTON DITCH 1- ALL FINAL RECLAIMED RESERVOIR SIDE SLOPES SHALL BE NO STEEPER THAN 3H:1V. 6"-12" ` CJ -_ OF TOPSOIL WILL BE PLACED ON ALL SLOPES ABOVE THE ASSUMED HIGH-WATER LINE. F-• RE -VEGETATION SHALL USE SEED MIXES LISTED IN TABLE BELOW, OR SIMILAR ALTERNATE MIX BASED ON COMMERCIAL AVAILABILITY AT THE TIME OF RECLAMATION. ALL SUBSTITUTIONS WILL DETERMINED IN CONSULTATION WITH QUALIFIED EXPERTS, AND APPROPRIATE TO THE REGION AND SOIL REGIME. F. ( 1 RAG I K. MINING ON I 2. HIGH WATER LINE IS APPROXIMATE BASED ON AN ASSUMED 1' FREEBOARD. (NO THIS TRACT] '1 � 3. AREAS TO BE RECLAIMED AS UPLAND WILL RECEIVE A MINIMUM OF 6"-12" TOPSOIL TO BETTER rH rCR ESTABLISH GRASSES AND PLANTINGS. REVISIONS I ^ J I 250 500 - 4. PLANTINGS WILL BE INSTALLED WHEN MINING COMMENCES IN THE EAST CELL (PHASE 2). No, DESCRIPTION DATE PLANTINGS WILL BE INSTALLED BY A RECLAMATION CONTRACTOR IN SEPT AND HAND WATERED PM 1� ZES. WILL BE MONITORED IN THE SPRING TO MAKE SURE THE GROUND EREPLAC UNTITHEY LARE I.TINGS LEAFING OUT REPLACED AS NECESSARY TO PROVIDE THE QUANTITIES AS ORIGINALLY INSTALLED AND WATERED AS NECESSARY THROUGH THE FIRST THREE GROWING SEASONS TO ESTABLISH. 5. AT RECLAMATION, AGGREGATE INDUSIRIES-WCR., INC. WILL ATTAIN MHFD APPROVAL OF PLANTING LOCATIONS WITHIN THE MHFD EASEMENT ALONG THE SOUTH PLATTE RIVER PRIOR TO RECLAMATION AREA ACREAGE TABLE: SEED MIX AND SEED MIX NOTES: INSTALLATION. GRAVEL MINING APPLICANT/OPERATOR: RECLAMATION PLAN AREAS ACREAGES Upland Scientific Variety % of Mix Application 6. SEEDING WILL BE DONE DURING THE FIRST FAVORABLE SEEDING SEASON FOLLOWING AGGREGATE INDUSTRIES-WCR. INC. MINING AREAS RECLAIMED TO WATER STORAGE 155.8 Meadow Grass Seed Name Rate (PL S/ TOPSOIL PLACEMENT. BASED ON RECOMMENDATION OF THE NRCS, IT IS ANTICIPATED THAT 1687 COLE BLVD. STE 300 GOLDEN, COLORADO 80401 DISTURBED, BUT NOT MINED LAND RECLAIMED TO UPLAND MEADOW 75.3 Big Bluestem Andropogon Kaw 1396 1.7 SEEDING WILL BE DONE BETWEEN OCT 15 AND MAY 1, UNLESS WEATHER CONDITIONS REQUIRE SEEDING OUTSIDE THESE MONTHS. Qerardii DISTURBED, BUT NOT MINED LAND RECLAIMED TO AGRICULTURAL 4.5 Blue Grama Bouteloua Machrta, 10% 0.3 SURFACE OWNERS: graalis Lovingtan 7. CERTIFIED WEED -FREE STRAW CRIMPED INTO TOPSOIL WILL BE USED WHERE GRASSES ARE UNDISTURBED AREAS OUTSIDE AFFECTED AREA 49.0 Green Nasselia Lodom 15% 1.5 TO BE ESTABLISHED ABOVE THE HIGH-WATER LINE ON RESERVOIR SIDE SLOPES, OR NEW SEEDS TUCSON STREET ROW 2.9 Needlegrass vrndula PLANTED INTO A COVER CROP. AGGREGATE INDUSTRIES-WCR. INC.(TRACTS A, B. D, E, F. H, AND M) 1687 COLE BLVD. STE 300 E 168 AVE ROW 0•1 Srdeoats Creme Bouteloua curtipendula Vaughn Butte 10% 1.0 GOLDEN, COLORADO 80401 TOTAL Y8?.6 Switch grass Pan!cium virgotum Blackwell 20% 2.0 CITY OF AURORA (TRACTS C, G, K AND N) 15151 EAST ALAMEDA PARKWAY, STE 3600 AURORA. COLORADO 80012 Western Wheat rass g Pescopyrum smithii Arriba, Barton 30% 4 8 Total 11 3 DRAwNCHECKBv: CAI DATE' AUGUST 21 ED BY: GL SCALE; AS NOTEC AS NOTEC ADAMS COUNTY (TRACTS L & 0) ADAMS COUNTY GOVERNMENT CENTER 'Application rate is for dnll seeing If seed is to be broadcast, the applicator rate ,all be doubled' -- — — JOB NO.: 297.031.09 DWG NAME:,- c.ri°r r r¢a wEa REcuwrtw ruv a. 4430 SOUTH ADAMS COUNTY PARKWAY TREE TABLE; Temporary Stockpile Vegetation EXHIBIT F COVER BRIGHTON, COLORADO 80601 Common Name Botanical Name Planting Size Quantity Luna Pubescent Wheatgrass- 151b./ac Plains Cottonwood Populus deltoides 10 gallon 36 Amur Intermediate Wheatgrass - 15 Woe YOSHI & SUZU, LLP (TRACTS P 8 O) American Plum Prunus americana 1 40 gal,or RECLAMATION SHEET NOTES & PO BOX 508BRIGHTON, Choke Cherry PrunusPrunusvirginiana 1 40 gallon CO 80601 DOROTHY STRUCK (TRACT R) Western Sand Cherry Coyote willow Prunus besseyt SalkSipa 1 galior 1 gal o 40 40507 COUNTY ROAD 23.5 1411BRIGHTON, COLORADO 80603 ` ' ♦ SHEE TORY STRUCK (TRACT S) 527 COUNTY RODOR DO3.5 BRIGHTON. COLORADO 80603Gall Know 6belYouaty F- �, • CIVII RFSI9UIRC;FS 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 8O5O4 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES. COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 83401 214-213-7859(P) KIMBERLY DENNIS • hire 1. !t Wry Cer ewAL1 E%BtB11 F EAST IAEA RECMM111JN RAIN in. WRIT ?'.0 23 M w w UCSON ST VIEW 111 1 1 1 I I I / / / `- / / / /' �r--- - - 1`kN\ 1I \ 1 1 I I / / . I / / ® / / / - - '11' \11,\\1111 II I r / I / 1 r 11S \. 1 111 I i ( `-----�` \ l; I /i /�/ / -- II11'. I • µ i /- • HWY7 ( 30' TODD CREEK UTILITY & WATERLINE EASEMENT I WATER STORAGE RESERVOIR B • / AREA t 83.8 AC NHWL ELEV = 4953.4' NHWL AREA 381.4AC- J` //) )111\ /rn1 \ \\ \ \ / )1 \VA1 r ! I,F \ I • 1 / / I./// MOr26IW SMITH MATURE AREA (CITY OF HQI6I4TOW 1) / TODD CREEK FACILITY EASEMENT / / • W W-44 0 / • • • / III • 0 { I r TODD CREEK UTILITY & WATERLINE EASEMENT / APP2OX I MATE LOCAT I OK! OF THE SOUTH PLATTE RIVER TOP OF GHAKINEL PER APRIL 2002 UDFCD MASTER PLAID STUDY BY CAMP. DRESSER ARID MCKEE / / �— — /// / / / I I 1 WW -45 I21) ��- • l r • NB too 1� LEGEND: x -4900------ x x x W UE OE G OT 4900 NHWL a MINE PERMIT BOUNDARY TRACT BOUNDARY EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING EDGE OF WATER EXISTING 2' CONTOURS EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC UNE EXISTING OVERHEAD ELECTRIC LINE EXISTING GAS UNE EXISTING WATER LINE EXISTING TELEPHONE LINE PROPOSED SLURRY WALL PROPOSED 2' CONTOURS RESERVOIR ACCESS ROAD EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER RESERVOIR ACCESS ROAD NORMAL HIGH WATER UNE PROPOSED COTTONWOOD TREE (LOCATIONS SUBJECT TO CHANGE) PROPOSED SHRUB BEDS (LOCATIONS SUBJECT TO CHANGE) vier, _-. • , ,&s1H AVENUE '.' ' _ c, OF r' A JRORA CITY T ' THORN'O N . RESERVOIR / ?, :aFtT AREA' • 14 AA ;� Port l�4 "Li a��\/ NOR PERMIT KEY MAP 44"- NTS CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR, INC. AGGREGATE INDUSTRIES-WCR. INC. WILL KEEP THE DIVISION OF RECLAMATION. MINING, AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE Know what's below. Call before you dig. C IVII RES'AURCCES 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS REVISIONS NO, DESCRIPTION DALE DRAWN BY: CAI DATE: AUGUST 21 CHECKED BY: a SCALE: AS NOTED AS NOTED ,CB NO.: 297.OO1.D9 "::‘,11/ G :NAME:r. Olt •tair r (451 AMA REONMnGN PLAM.e EXHIBIT F EAST AREA RECLAMATION PLAN SHE,T F-3 IC r- WCR 23/4 Q 1 J N 50.0 CONVEYOR EASEMENT 1 1 1/ RECLAIM AS AGRICULTURAL MATCHUNE: SEE SHEET F-3 1 w i Jo 168TH AVENUE LEGEND: I f I 1 1 i l I 1 I 1 1 I T f I 1 I x 4900 x x x UE MINE PERMIT BOUNDARY TRACT BOUNDARY EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING EDGE OF WATER EXISTING 7 CONTOURS EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC LINE OE G CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR INC. AGGREGATE INDUSTRIES-WCR INC. WILL KEEP THE DIVISION OF RECLAMATION MINING, AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09109/2021 GARY LINDEN DATE Iwo =203' OT MW -I 9 EXISTING OVERHEAD ELECTRIC LINE EXISTING GAS LINE EXISTING WATER LINE EXISTING TELEPHONE LINE EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER MONITORING WELL LOCATION WITH WELL ID # WATER WELL LOCATION WITH WELL ID # EXISTING TREES UTILITY POLE SECTION CORNER MONUMENT Wasµ 36 I;1 3 04 1ea&AVE`NIIEy_ CITY Of AJ RORA RESERVOR WEST AREA W + SE 6 .1 t CITY O THORNTON RESERVOIR EAST AREA CO _VN 7 T..AST MTN AVFME) ! 1 I F �f \0R -H PERMIT KEY MAP NTS Know what's below. Call before you dig. Ccn I I\ II 1.1I")7,1W( 7,LIl.( i 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES. COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 3W GOB _DEN , COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS TUCSON SOUTH RESOURCE EXHIBIT F WELD COUNTY AREA RECLAMATION PLAN REVISIONS DESCRIPTION DATE DRAWN BY. Sal_ CHECKED BY: 3, DATE: AUGUST21 SCALE: AS NOTED AS NOTED mOB NO.: 297.001.09 "VVG Nt1 7-.41 WELD COUNTY CONVEYOR RECLAMATION PLAN SHE E. F-4 RECEIVED September 9, 2021 Clerk to the Board of Weld County Commissioners 1150 O Street P.O. Box 758 Greeley, CO 80631 RE: Tucson South Gravel Mine Dear Clerk to the Board: SEP 10 2021 WELD COUNTY COMMISSIONERS As a requirement of the Division of Reclamation Mining and Safety (DRMS), the complete Tucson South Gravel Mine application must be on file at the County Clerk's Office and be available for public viewing. A copy of the complete application on behalf of Aggregate Industries is attached. Please sign below to indicate that you have received the above -mentioned information and return this page to us by email at gary@civilresources.com. As always, thank you for your assistance. Sincerely, Civil ResourceLLC Gary Linden, P.G. Senior Engineering Geologist Confirmation of Receipt: I have received the above reference documents, and will put it on file for public viewing. County Clerk to the Board Date J:1Aggregate Industries-297/Tucson South Permit Support/2021 amendment\CAMS lnoticeslletter to clerk_signature regted_Weld.doc AGGREGATE INDUSTRIES-WCR, INC. TUCSON SOUTH GRAVEL MINE DRMS 112 PERMIT AMENDMENT SUBMITTAL M-2004-044-AM02 PREPARED FOR: Aggregate Industries — WCR, Inc. 1687 Cole Blvd., Suite 300 Golden, CO 80401 PREPARED BY: Civil Resources, LLC 8308 Colorado Blvd., Suite 200 Firestone, CO 80504 303.833.1416 DATE SUBMITTED TO DRMS: SEPTEMBER 9, 2021 f ltii! kl' 3)t ( r�iI -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. 41— I . 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. - 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. o Colorado Division of Water Resources with regard to water rights; • Colorado Department of Health, Water Quality Control Division, with regard to the discharge of pollutants into the State waters; o Colorado Department of Health, Air Pollution Control Division, with regard to the need for a fugitive dust permit; • U.S. Bureau of Land Management or the U.S. Forest Service if the proposed operation will occur on federal lands; o U. S. Army Corps of Engineers regarding a dredge and fill (404) permit; and o 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: n There is a File Number Already Assigned to this Operation Permit # M2,goa _ COLORADO DIVISION OF RECLAMATION MINING - &- SAFETY 044 (Please reference the file number currently assigned to this operation) New Application (Rule 1.4.5) Conversion Application (Rule 1.11) Permit # M 2004 _ Q44 Amendment Application (Rule 1.10) (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): Aggregate Industries-WCR, Inc. 1.1 Type of organization (corporation, partnership, etc.): Corporation 2. Operation name (pit, mine or site name): Tucson South Resource 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: sand gravel 5.1 Incidental commoditie(s) to be mined: 1. gold 5 283.2 4.4 287.6 $2,696.00 $3,342.00 $2,229.00 $2,696.00 lbs/Tons/yr 2. / permitted acres acres acres application fee quarry application amendment fee conversion fee lbs/Tons/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: construction materials 5.3 Anticipated end use of incidental commoditie(s) to be mined: n/a -2- 6. Name of owner of subsurface rights of affected land: See Exhibit 0 If 2 or more owners, "refer to Exhibit O". 7. Name of owner of surface of affected land: See Exhibit 0 8. Type of mining operation: RI Surface 11 Underground 9. Location Information: The center of the area where the majority of mining will occur: COUNTY: Adams PRINCIPAL MERIDIAN (check one): 6th (Colorado) 10th (New Mexico) ❑ Ute SECTION (write number): S 1 TOWNSHIP (write number and check direction): T 1 D North a South RANGE (write number and check direction): R 67 [ East El West QUARTER SECTION (check one): © © El El SW QUARTER/QUARTER SECTION (check one):n t NE • , NW SE SW GENERAL DESCRIPTION: (the number of miles and direction from the nearest town and the approximate elevation): approximately 1 mile west of Brighton, west of the South Platte River, on the north side of Hwy 7 at its intersection with Tucson St., Elev. 4060. 10. Primary Mine Entrance Location (report in either Latitude/Longitude OR UTM): Latitude/Longitude: Example: (N) 39° 44' 12.98" (W) 104° 59' 3.87" Latitude (N): deg 39 min 59 sec 37 68 (2 decimal places) Longitude (W): deg 104 min 50 sec 14 14 (2 decimal places) OR Example: (N) 39.73691° (W) -104.98449° Latitude (N) _ Longitude(W) OR Universal Tranverse Mercator (UTM) Example: 201336.3 E NAD27 Zone 13 4398351.2 N (5 decimal places) (5 decimal places) UTM Datum (specify NAD27, NAD83 or WGS 84) Nad 83 Zone 13 Easting Northing -3- 11. Correspondence Information: APPLICANT/OPERATOR (name, address, and phone of name to be used on permit) Contact's Name: Chance Allen Title: Regional General Manager Company Name: Aggregate lndustries-WCR, Inc. Street/P.O. Box: 1687 Cole Blvd., Suite 300 P.O. Box: City: Golden State: Colorado Zip Code: 80401 Telephone Number: (303 ) _ 648-1175 Fax Number: ( ) - PERMITTING CONTACT (if different from applicant/operator above) Contact's Name: Gary Linden Title: Sr. Engineering Geologist Company Name: Civil Resources, LLC Street/P.O. Box: 8308 Colorado Blvd., Suite 200 P.O. Box: City: Firestone State: Colorado Zip Code: 80504 Telephone Number: (720 ) _ 684-7221 Fax Number: ( ) - INSPECTION CONTACT Contact's Name: Kimberley Dennis Title: Environmental Director Company Name: Aggregate Industries-WCR Street/P.O. Box: 1687 Cole Blvd., Suite 300 P.O. Box: City: Golden State: Colorado Zip Code: 80401 Telephone Number: (214 ) _ 213-7859 Fax Number: ( ) - CC: STATE OR FEDERAL LANDOWNER (if any) Agency: Street: City: State: Zip Code: Telephone Number: ( ) - CC: STATE OR FEDERAL LANDOWNER (if any) Agency: Street: City: State: Zip Code: Telephone Number: ( ) -4- 12. Prima future (Post -mining) land use (check one): Li Cropland(CR) JD Pastureland(PL) n Rangeland(RL) _ElForestry(FR) El Residential(RS) n Recreation(RC) TiDeveloped Water Resources(WR) 13. Primary present land use (check one : 0 Cropland(CR) Pastureland(PL) ill Rangeland(RL) Forestry(FR) BResidential(RS) _D 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): Mine with excavation equipment, backhoes, front end loaders, material placed on conveyor, transported off -site. 15. On Site Processing: El Crushing/Screening 13.1 Briefly explain mining method (e.g. truck/shovel): No on -site processing List any designated chemicals or acid -producing materials to be used or stored within permit area: Petroleum products 16. Description of Amendment or Conversion: If you are amending or converting an existing operation, provide a brief narrative describing the proposed change(s). Amend the existing permit to add approximately 7.7 acres as a conveyor route to transport material off site for processing. Remove the former conveyor route part of the permit area from affected lands. Match the Conditional Usc Pcrmit (CUP) obtained from Adams County. -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 "ip `tC..l r , 'Lb 2_1 A sco Q 'r y i os— L(7Q12 I 1 ► is • If Corporation Attest (Seal) App1i nt/ONrator or Company Name Signed: Signed: c G�l/l Title: ! i INv Q V Q,IA p.%& VYlade 1' State of l.1/&iO ) ss. County of e S CAA ) Corporate Secretary easkifffigataM Town/i'errt[ntyCerk- JOur1dte Mt/Ai/4n The foregoing instrument was acknowledged before me this o day of SPA -eon 1O2- t, by U 2 • CorteGna A-Lu-rN as 140,6ff (And V YJ nittairof cS rI reboil, - WC -Rai SARAH GREGA NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20174007757 MY COMMISSION EXPIRES FEBRUARY ! 1 i �i c,✓fit_ Notary Public My Commission expires: l Z i SIGNATURES MUST BE IN BLUE INK �2 $ You must post sufficient Notices at the location of the proposed mine site to clearly identify the site as the location of a EXHIBIT A - LEGAL DESCRIPTION This information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.1 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: The amended Tucson South Resource is located approximately one mile west of Brighton, in Adams and Weld County, Colorado. The previously approved mine areas are unchanged. The amendment is necessary to bring the DRMS permit into compliance with the Adams County Conditional Use Permit (CUP) by adding an off -site conveyor on the west side of Tucson Street and removing the previously approved (by the DRMS) off -site conveyor on the east side of Tucson Street. The off -site conveyor will transport material from the Tucson South Mine to the Wattenberg Lakes mine. The amended Tucson South Permit Boundary includes 287.6 acres. The Affected Area Boundary less the westernmost parcel (owned by the City of Aurora for non -mining purposes) has an area of approximately 238.6 acres. The Permit Boundary is comprised of two distinct mining areas (separated by Tucson Street and the Tucson Street right-of-way)), the off -site conveyor, and the above -mentioned, unmined, City of Aurora property. Acreage within the Permit Boundary is summarized as follows: • West — Phase 1, 137.6 acres, Tracts A, B, C, K, located north of State Highway 7 and west of Tucson Street: • East, - Phase 2, 139.4 acres, Tracts D, E, F, G, H, M, located north of State Highway 7 and east of Tucson Street. • Tucson Street right-of-way — 2.9 acres, Tract L; and • Off -site conveyor route located in Adams and Weld Counties — 7.7 acres, Tracts N, O, P, Q, R, and S. Legal descriptions of the amended tracts removed tract, and the previously permitted tracts follow. AMENDED PARCEL DESCRIPTION OFF -SITE CONVEYOR ROUTE LOCATED IN ADAMS AND WELD COUNTIES (7.7 ACRES +/-): TRACT N A strip of land, 50.00 feet in width, being a part of that tract of land conveyed to City of Aurora as described in Special Warranty Deed recorded June 19, 2013, as Reception No. 2013000052166 of the records of Adams County, Colorado, located in the NW1/4 of Section 1, T1 S, R67W of the 6th P.M., County of Adams, State of Colorado, described as follows: Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A -1 COMMENCING at the C1/4 Corner of said Section 1, from which the N1/4 Corner of said Section 1 bears N0°06'42"W, 2292.89 feet (Basis of Bearing), Thence S89°40'23"W, 40.00 feet along the South Line of the NW1/4 of said Section 1 to the Westerly Right-of-way Line of Tucson Avenue and the POINT OF BEGINNING; Thence N0°06'42"W, 2252.74 feet along the Westerly Right-of-way Line of said Tucson Avenue and along the Westerly Line of the Easterly 40.00 feet of the NW1/4 of said Section 1 to the Southerly Right-of-way Line of E. 168th Avenue; Thence S89°28'08"W, 411.72 feet along the Southerly Right-of-way Line of said E. 168th Avenue to an angle point thereof; Thence S89°30'16"W, 98.72 feet along the Southerly Right-of-way Line of E. 168th Avenue; Thence S1 °36'08"E, 50.01 feet to the Southerly Line of the Northerly 100.00 feet of the NW1/4 of said Section 1; Thence N89°30'16"E, 97.77 feet along the Southerly Line of the Northerly 100.00 feet of the NW1/4 of said Section 1; Thence N89°28'08"E, 361.36 feet along the Southerly Line of the Northerly 100.00 feet of the NW1/4 of said Section 1 to the Westerly Line of the Easterly 90.00 feet of the NW1 /4 of said Section 1; Thence S0°06'42"E, 2202.56 feet along the Westerly Line of the Easterly 90.00 feet of the NW1/4 of said Section 1 to the South Line of the NW1/4 of said Section 1; Thence N89°40'23"E, 50.00 feet along the South Line of the NW1/4 of said Section 1 to the POINT OF BEGINNING. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A - 2 TRACT O A strip of land, 50.00 feet in width, being a part of the Right-of-way of E. 168th Avenue (Weld County Road 2), located in the NW1/4 of Section 1, T1S, R67W of the 6th P.M., County of Adams, State of Colorado, and located in the SW1/4 of Section 36, T1 N, R67W of the 6th P.M., County of Weld, State of Colorado, described as follows: COMMENCING at the S1/4 Corner of said Section 36 from which the C1/4 Corner of said Section 36 bears N0°34'54"W, 2637.18 feet, Thence N0°34'54"W, 30.00 feet along the East Line of the SW1/4 of said Section 36 to the Northerly Right-of-way Line of said E. 168th Avenue (Weld County Road 2); Thence S89°30'16"W, 50.01 feet along the Northerly Right-of-way Line extended Easterly of said E. 168th Avenue (Weld County Road 2) to the Westerly Right-of-way Line of Weld County Road 23-1/2 conveyed to County of Weld as described in Quit Claim Deed recorded January 22, 1900, in Book 130 at Page 318 of the records of Weld County, Colorado, and the POINT OF BEGINNING; Thence S1 °36'08"E, 70.01 feet along the Westerly Right-of-way Line extended Southerly of said Weld County Road 23-1/2 to the Southerly Right-of-way Line of said E. 168th Avenue (Weld County Road 2); Thence S89°30'16"W, 50.01 feet along the Southerly Right-of-way Line of said E. 168th Avenue (Weld County Road 2) to a point on a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right-of-way Line extended Southerly of said Weld County Road 23-1/2; Thence N1°36'08"W, 70.01 feet along a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right-of- way Line extended Southerly of said Weld County Road 23-1/2 to the Northerly Right-of-way Line of said E. 168th Avenue (Weld County Road 2); Thence N89°30'16"E, 50.01 feet along the Northerly Right-of-way Line of said E. 168th Avenue (Weld County Road 2) to the POINT OF BEGINNING. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A - 3 TRACT P A strip of land, 50.00 feet in width, being a part of Parcel 4 conveyed to Sakata Farms as described in Quit Claim Deed recorded June 20, 1978, as Reception No. 1757230 of the records of Weld County Colorado, located in the SW1/4 of Section 36, T1 N, R67W of the 6th P.M., County of Weld, State of Colorado, described as follows: COMMENCING at the S1/4 Corner of said Section 36 from which the C1/4 Corner of said Section 36 bears N0°34'54"W, 2637.18 feet, Thence N0°34'54"W, 30.00 feet along the East Line of the SW1/4 of said Section 36 to the Northerly Right-of-way Line of said E. 168th Avenue (Weld County Road 2); Thence S89°30'16"W, 50.01 feet along the Northerly Right-of-way Line extended Easterly of said E. 168th Avenue (Weld County Road 2) to the Westerly Right-of-way Line of Weld County Road 23-1/2 conveyed to County of Weld as described in Quit Claim Deed recorded January 22, 1900, in Book 130 at Page 318 of the records of Weld County, Colorado, and the POINT OF BEGINNING; Thence N1 °36'08"W, 110.00 feet along the Westerly Right-of-way Line of said Weld County Road 23- 1/2 to the Northerly Line of Parcel 4 as described as said Reception No. 1757230; Thence S89°30'16"W, 50.01 feet along the Northerly Line of Parcel 4 as described as said Reception No. 1757230 to a point on a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right-of-way Line of said Weld County Road 23-1/2; Thence S1 °36'08"E, 110.00 feet along a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right- of-way Line of said Weld County Road 23-1/2 to the Northerly Right-of- way Line of said E. 168th Avenue (Weld County Road 2); Thence N89°30'16"E, 50.01 feet along the Northerly Right-of-way Line of said E. 168th Avenue (Weld County Road 2) to the POINT OF BEGINNING. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A - 4 TRACT Q A strip of land, 50.00 feet in width, located in the SW1/4 of Section 36, TIN, R67W of the 6th P.M., County of Weld, State of Colorado, described as follows: COMMENCING at the S1/4 Corner of said Section 36 from which the C1/4 Corner of said Section 36 bears N0°34'54"W, 2637.18 feet, Thence N0°34'54"W, 30.00 feet along the East Line of the SW1/4 of said Section 36 to the Northerly Right-of-way Line of said E. 168th Avenue (Weld County Road 2); Thence S89°30'16"W, 50.01 feet along the Northerly Right-of-way Line extended Easterly of said E. 168th Avenue (Weld County Road 2) to the Westerly Right-of-way Line of Weld County Road 23-1/2 conveyed to County of Weld as described in Quit Claim Deed recorded January 22, 1900, in Book 130 at Page 318 of the records of Weld County, Colorado; Thence N1 °36'08"W, 110.00 feet along the Westerly Right-of-way Line of said Weld County Road 23-1/2 to the Northerly Line of Parcel 4 conveyed to Sakata Farms as described in Quit Claim Deed recorded June 20, 1978, as Reception No. 1757230 of the records of Weld County Colorado, and the POINT OF BEGINNING; Thence N1°36'08"W, 1095.90 feet along the Westerly Right-of-way Line of said Weld County Road 23-1/2 to angle point thereof; Thence N1°57'58"W, 1402.02 feet along the Westerly Right-of-way Line of said Weld County Road 23-1/2 to the North Line of the SW1/4 of said Section 36; Thence S89°32'11"W, 50.02 feet along the North Line of the SW1/4 of said Section 36 to a point on a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right-of- way Line of said Weld County Road 23-1/2; Thence S1°57'58"E, 1403.17 feet along a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right- of-way Line of said Weld County Road 23-1/2; Thence S1°36'08"E, 1094.78 feet along a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right - Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A - 5 of -way Line of said Weld County Road 23-1/2 to the Northerly Line of Parcel 4 as described as said Reception No. 1757230; Thence N89°30'16"E, 50.01 feet along the Northerly Line of Parcel 4 as described as said Reception No. 1757230 to the POINT OF BEGINNING TRACT R A strip of land, 50.00 feet in width, being a part of Lot B of Recorded Exemption No. 1469 -36 -2 -RE- 2500, a recorded exemption located in the S1/2 of the NW1/4 of Section 36, TIN, R67W of the 6th P.M., County of Weld, State of Colorado, recorded January 17, 2000, as Reception No. 2744786 of the records of Weld County, Colorado, described as follows: COMMENCING at the C1/4 Corner of said Section 36 from which the C - N1/16 Corner of said Section 36 bears N0°32'45"W, 1318.76 feet, thence S89°32'11"W, 95.36 feet along the South Line of the SE1/4 of the NW1/4 of said Section 36 to the Westerly Right-of-way Line of Weld County Road 23- 1/2, according to Weld County Road File 100/119, and the POINT OF BEGINNING; Thence Ni °57'58"W, 477.53 feet along the Westerly Right-of-way Line of said Weld County Road 23- 1/2 to an angle point thereof; Thence N3°38'18"W, 506.74 feet along the Westerly Right-of-way Line of said Weld County Road 23- 1/2 to the Northerly Line of said Lot B; Thence S89°20'56"W, 50.07 feet along the Northerly Line of said Lot B to a point on a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right-of-way Line of said Weld County Road 23-1/2; Thence S3°38'18"E, 508.62 feet along a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right- of-way Line of said Weld County Road 23-1/2; Thence S1 °57'58"E, 475.49 feet along a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right - Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A - 6 of -way Line of said Weld County Road 23-1/2 to the South Line of the SE1/4 of the NW1/4 of said Section 36; Thence N89°32'11"E, 50.02 feet along the South Line of the SE1/4 of the NW1/4 of said Section 36 to the POINT OF BEGINNING. TRACT S A strip of land, 50.00 feet in width, being a part of Subdivision Exemption No. 1469 -36 -2 -RE -771, a subdivision exemption located in the SE1/4 of the NW1/4 of Section 36, T1 N, R67W of the 6th P.M., County of Weld, State of Colorado, recorded January 17, 2000, as Reception No. 2744787 of the records of Weld County, Colorado, described as follows: COMMENCING at the C -N1/16 Corner of said Section 36 from which the C1/4 Corner of said Section 36 bears S0°32'45"E, 1318.76 feet, thence S89°33'18"W, 152.66 feet along the North Line of the SE1/4 of the NW1/4 of said Section 36 to the Westerly Right-of-way Line of Weld County Road 23- 1/2, according to Weld County Road File 100/119, and the POINT OF BEGINNING; Thence S3°38'18"E, 336.00 feet along the Westerly Right-of-way Line of said Weld County Road 23- 1/2 to the Southerly Line of said Subdivision Exemption No. 1469 -36 -2 -RE -771; Thence S89°20'56"W, 50.07 feet along the Southerly Line of said Subdivision Exemption No. 1469- 36 -2 -RE -771 to a point on a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right-of-way Line of said Weld County Road 23-1/2; Thence N3°38'18"W, 336.19 feet along a line that is 50.00 feet Westerly of, as measured at right angles from and parallel with, the Westerly Right- of-way Line of said Weld County Road 23-1/2 to the North Line of the SE1/4 of the NW1/4 of said Section 36; Thence N89°33'18"E, 50.08 feet along the North Line of the SE1/4 of the NW1/4 of said Section 36 to the POINT OF BEGINNING. REMOVED PARCEL DESCRIPTION LOCATED IN ADAMS COUNTY (3.3 ACRES+/-) (FORMER OFF SITE CONVEYOR ROUTE) Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A - 7 TRACT J A portion of a parcel owned by the City of Thornton (PN: 0157101002001) located in the Northeast quarter of Section 1, Township 1 South, Range 67 West of the 6th p.m., County of Adams, State of Colorado, being more particularly described as follows: The West 50.00 feet; the North 50.00 feet of the West 1250.00 feet; and the South 50.00 feet of the West 380.00 feet. PREVIOUS PERMIT BOUNDARY (LESS REMOVAL OF SOUTH CELL (TR-2) AND FORMER OFF -SITE CONVEYOR) (279.9 ACRES+/-) TRACT A That parcel of land as described in a general warranty deed recorded February 27, 2001 at reception no. c0765905, County of Adams, state of Colorado. Except parcel b as described in a general warranty deed recorded February 27, 2001 at reception no. c0765905, County of Adams, state of Colorado. And except that tract of land conveyed to city of Aurora as described in general warranty deed recorded December 22, 2005, as reception no. 20051222001399920, County of Adams, state of Colorado. TRACT B A parcel of land in the SW 1/4 of Section I, Township I South. Range 67 West of the 6th p.m., County of Adams. state of Colorado, described as follows: Beginning at the southwest corner of said section 1: thence north along the west line of said section 1 a distance of 1449 feet; Thence S84°05'E a distance of 1334.7 feet to the true POINT OF BEGINNING: Thence S69°18'E, 260.7 feet; Thence N07°32'E, 171.6 feet; Thence N69°18'W, 260.7 feet; Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A - 8 Thence S07°32'W, 171.6 feet to the POINT OF BEGINNING, County of Adams, State of Colorado. TRACT C All that tract of land described in the special warranty deed recorded September 26, 2016 at reception No. 2016000080681, County of Adams, state of Colorado. TRACT D That part of the North one-half Southeast one -quarter, Section 1, Township 1 South, Range 67 West of the sixth principal meridian, Adams County, Colorado described as: Commencing at the Northwest corner of said North one-half Southeast one -quarter, said point being the POINT OF BEGINNING; Thence N. 89°37'18" E. Along the North line of said North one-half Southeast one -quarter a distance of 1050.57 feet; Thence S. 00°08'29" E, parallel with the West line of said North one-half Southeast one -quarter a distance of 621.95 feet to a line that is parallel with the North line of said North one-half Southeast one quarter and 5 feet South of an existing house; Thence S. 89°37'18" W. Along said line a distance of 1050.57 feet to the West line of said North one-half Southeast one -quarter; Thence N. 00°08'29" W. Along the West line of said North one-half Southeast one -quarter a distance of 621.95 feet, to the POINT OF BEGINNING; except the west 40.00 feet thereof, County of Adams, State of Colorado. TRACT E That part of the North one-half Southeast one quarter Section 1, Township I South, Range 67 West of the sixth principal meridian, Adams County, Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A - 9 Colorado, lying North and West of the centerline of the South Platte River, described as: Commencing at the Northwest corner of said north one-half Southeast one -quarter; Thence South 00°08'29" East along the West line of said North one-half Southeast one -quarter, a distance of 621.95 feet to a line that is parallel with the North line of said North one-half Southeast one -quarter and 5 feet South of an existing house and the POINT OF BEGINNING; Thence North 89°37'18" East, parallel with the North line of said North one-half Southeast one -quarter, a distance of 1050.57 feet; Thence North 00°08'29" West, parallel with the West line of said North one-half Southeast one -quarter, a distance of 621.95 feet to the North line of said North one-half Southeast one -quarter; Thence North 89°37'18" East along the North line of said North one-half Southeast one -quarter, a distance of 1635.47 feet to the Northeast corner of said North one-half Southeast one -quarter; Thence South 00°31'01" East along the East line of said North one-half Southeast one -quarter, a distance of 590.02 feet to the centerline of the South Platte River; Thence Southerly along the centerline of the South Platte River South 53°55'12" West, a distance of 142.93 feet to a line that is 646.34 feet North of and parallel with the South line of said North one-half Southeast one -quarter; Thence South 89'54'25" West along said line, a distance of 1324.16 feet to a line that is 1250.00 feet East of and parallel with the West line of said North one-half Southeast one -quarter; Thence South 00°08'29" East, parallel with the West line of said North one-half Southeast one -quarter, a distance of 169.08 feet to a line that is 477.26 feet North of and parallel with the South line of said North one-half Southeast one -quarter; Thence South 89°54'25" West along said line, a distance of 1250.00 feet to the West line of said North one-half Southeast one -quarter; Thence North 00°08'29" West along the West line of said North one-half Southeast one -quarter, a distance of 207.94 feet to the POINT OF Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A -10 BEGINNING, except the West 40.00 feet thereof, County of Adams, State of Colorado. TRACT F That part of the North one-half of the Southeast one -quarter, Section 1, Township 1, South, Range 67 West of the sixth principal meridian, Adams County, State of Colorado, lying North and West of the centerline of the South Platte River described as: Commencing at the Southwest corner of said North one-half Southeast one -quarter, said point being the POINT OF BEGINNING; Thence N00°08'29"W, along the West line of said North one-half Southeast one -quarter a distance of 477.26 feet; Thence n89°54'25"e, parallel with the South line of said North one-half Southeast one -quarter, a distance of 1250.00 feet; Thence N00'08'29", parallel with the West line of said North one-half Southeast one -quarter, a distance of 169.08 feet; Thence n89°54'25"e, parallel with the south line of said north one half southeast one -quarter a distance of 1324.16 feet to the centerline of the South Platte River; Thence by the following courses and distances along the centerline of the South Platte River; S53°55'12"W, 94.57 feet; S32°39'44"W, 231.53 feet, S26°54'09"W, 242.48 feet; S15°48'38"W, 187.17 feet to the South line of said North one-half Southeast one -quarter; Thence S89°54'25"W, along the South line of said North one-half Southeast one -quarter, a distance of 2210.47 feet to the POINT OF BEGINNING, except the West 40.00 feet thereof, County of Adams, State of Colorado. TRACT G All that tram of land described in the quit claim deed recorded March 2,2017 at reception No. 2017000018970, County of Adams, State of Colorado. TRACT H The SW1/4 of the SE1/4 of Section 1, Township 1 South, Range 67 West, except that part as described in book 1055 at page 52, and in book 1214 Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A -11 at page 326 and except that part described in book 1205 at page 128, County of Adams, State of Colorado TRACT K A parcel of land located in the South half of the Northeast quarter of Section 1, Township 1 South, Range 67 West of the 6th P.M., County of Adams, State of Colorado, more particularly described as follows: Beginning at the East quarter corner of said Section 1; Thence South 89°39'53" West 2445.14 feet along the South line of the Northeast quarter of said Section 1; Thence North 00°06'03" West 827.14 feet; Thence 214.58 feet along the arc of a curve to the right having a radius of 2944.62 feet and a long chord which bears North 69°36'00" West 214.53 feet to a point lying 40.00 feet Easterly from the West line of the Northeast quarter of said Section 1; Thence North 00°06'03" West 32.52 feet parallel to the West line of the Northeast quarter of said Section 1; Thence 305.94 feet along the arc of a curve to the left having a radius of 2914.62 feet and a long chord which bears South 70°16'26" East 305.80 feet, said point being on the Southerly line of the Tucson Resources subdivision as recorded in the Adams County records in file 17 map 855; Thence South 73°16'48" East 2463.67 feet along the Southerly line of said Tucson Resources subdivision to the East line of the Northeast quarter of said Section 1; Thence South 00°1 0'30" East 108.13 feet along the East line of the Northeast quarter of said Section 1 to the POINT OF BEGINNING. TRACT L (TUCSON STREET RIGHT-OF-WAY) A tract of land located in the South half of Section 1, Township 1 South, Range 67 West of the 6th P.M., County of Adams, State of Colorado, being more particularly described as follows: Beginning at the center -south one -sixteenth corner of Section 1; Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A -12 Thence along the north -south centerline of Section 1 South 00°06'29" East 1234.13 feet to a point whence the South one -quarter corner of Section 1 bears South 00°06'29" East 72.70 feet; Thence leaving said north -south centerline South 89°33'20" West 30.00 feet to the Westerly right-of-way line of Tucson Street; Thence along said Westerly right-of-way line North 00°06'29" West 2541.11 feet to a point on the North line of the Southwest quarter of Section 1; Thence along said North line North 89°40'23" East 30.00 feet to the center one -quarter corner of Section 1; Thence along the North line of the Southeast quarter of Section 1 North 89°39'20" East 40.00 feet to a point on the Easterly right-of-way line of Tucson Street; Thence along said Easterly right-of-way line South 00°06'29" East 1307.12 feet; Thence leaving said Easterly right-of-way line South 89°56'30" West 40.00 feet to the center -south one -sixteenth corner of Section 1 and the POINT OF BEGINNING. TRACT M A parcel of land located in the South half of the Northeast quarter of Section 1, Township 1 South, Range 67 West of the sixth principal meridian, County of Adams, State of Colorado being more particularly described as follows: Beginning at the East one -quarter corner of Section 1; Thence West 2445.14 feet; Thence North 827.14 feet; Thence 214.58 feet along the arc of a curve to the right, having a radius of 2944.62 feet and a long chord which bears North 69°36' West 214.53 feet to a point 40 feet Easterly from the West line of the Northeast quarter of said Section 1; Thence North 32.52 feet; Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A -13 Thence 305.94 feet along the arc of a curve to the left, having a radius of 2914.62 feet and a long chord which bears South 70°16' East 305.80 feet; Thence South 73°16' East 2463.67 feet; Thence South 108.13 feet to the POINT OF BEGINNING. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit A -14 EXHIBIT B - INDEX MAP Please refer to the attached index map. Oil Welts fur MY) (1-=3000') TUCSON SOUTH RESOURCE — AMENDED OFF -SITE CONVEYOR ROUTE Park Park Mu 4,96,1 BRIGH' Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Amendment Application Exhibit B -1 Tani tech Ne+CDrmn'C' CLAW C EAST AREA RE.IAYATa7N KAN OVER s.q 44201, fk IA A4 UTILITY INFORMATION GRAVEL MINING APPLICANT/OPERATOR: AGGREGATE INDUSTRIES-WCR INC 1687 COLE BLVD STE 300 GOLDEN. COLORADO 80401 SURFACE OWNERS: AGGREGATE INDUSTRIES-WCR INC (TRACTS A. B D. E F. H AND Ml 1687 COLE BLVD. STE 300 GOLDEN. COLORADO 80401 CITY OF AURORA (TRACTS C. G. K AND N) 15151 EAST ALAMEDA PARKWAY. STE 3600 AURORA. COLORADO 80012 ADAMS COUNTY (TRACTS L & 0) ADAMS COUNTY GOVERNMENT CENTER 4430 SOUTH ADAMS COUNTY PARKWAY BRIGHTON. COLORADO 80601 YOSHI & SUZU. LLP (TRACTS P & 0) PO BOX 508 BRIGHTON. CO 80601 DOROTHY AND JAMES STRUCK (TRACT R) 507 COUNTY ROAD 23 5 BRIGHTON. COLORADO 80603 TOBY STRUCK (TRACTS) 527 COUNTY ROAD 23.5 BRIGHTON. COLORADO 80603 UTILITY INFORMATION TAKEN FROM THE TUCSON SOUTH ALTA/NSPS LAND TITLE SURVEY DATED SEPTEMBER 7 2018 BY CIVIL ARTS AND STRUCTURES SURVEY DATED SEPTEMBER 2. 2021. PLEASE REFER TO SHEETS C-2. C-3 AND C-4 FOR ADJACENT PROPERTY OWNERS WITHIN 200' OF PERMIT BOUNDARY. ADJACENT PROPERTY OWNER INFORMATION WAS PROVIDED BY ADAMS COUNTY AND WELD COUNTY RECORDS FLOOD HAZARD LEGEND: EFFECTIVE ZONE AE AREA OF 1% ANNUAL CHANCE FLOOD WITH BASE FLOOD ELEVATIONS DETERMINED.AS SHOWN ON FEMA FIRM (MARCH 15. 2007) EFFECTIVE ZONE X: AREAS OF 0.2% ANNUAL CHANCE FLOOD. AREAS OF 1% ANNUAL CHANCE FLOOD WITH AVERAGE DEPTHS OF LESS THAN 1 FOOT OR WITH DRAINAGE AREAS LESS THAN 1 SQUARE MILE AND AREAS PROTECTED BY LEVEES FROM 1% ANNUAL CHANCE FLOOD. AS SHOWN ON FEMA FIRM (MARCH 5. 2007) EFFECTIVE FLOODWAY. THE FLOODWAY IS THE CHANNEL OF A STREAM PLUS ANY ADJACENT FLOODPLAIN AREAS THAT MUST BE LEFT FREE OF ENCROACHMENT SO THAT THE 1% ANNUAL CHANCE FLOOD CAN BE CARRIED WITHOUT SUBSTANTIAL INCREASES IN FLOOD HEIGHTS. AS SHOWN ON FEMA FIRM (MARCH 5 2007) PRE -PROJECT , MINING CONDITIONS. AREA IF 1% ANNUAL CHANCE FLOODPLAIN PER TETRA TECH STUDY (NOV 2018 OR AS REVISED) MINING AREA ACREAGE TABLE: AREA/PHASE TRACT PERMIT BOUNDARY AFFECTED AREA MINED AREA A 82.6 137.6 82.6 88.6 ' ,-, WEST! B 1.0 1.0 PHASE1 C 5.0 5.0 K 49.0 00 D 14.4 1394 14.4 139.4 83 8 E 30.7 30.7 EAST/ F 29.6 29.6 PHASE2 G 4.9 4 9 H 32.6 32.6 M 27.2 27.2 N 3.1 7.7 3.1 7.7 ' CONVEYOR O o.i 0.1 P 0.1 0.1 a 2.9 2.9 R 1.1 1.1 S 0.4 0.4 TUCSON ST L 2.9 2 9 2.9 2.9 0 0 TOTALS 287 6 238.6 155.8 TUCSON SOUTH RESOURCE PRE -MINING AND MINING PLAN MAPS MINING NOTES 1. REFER TO EXHIBITS C-2, C-3 AND C-4 FOR ADJACENT PROPERTY OWNERS, SOURCE OF SURVEY/TOPOGRAPHY, AND BENCHMARK INFORMATION. 2. AN ENGINEERING STABILITY ANALYSIS FOR SLIDING FAILURE HAS BEEN PERFORMED. MINING OCCURRING WITHIN 200' OF A MAN-MADE STRUCTURE NOT OWNED BY THE APPLICANT/OPERATOR HAS ADEQUATE SETBACK FOR SLIDING FAILURE. THE LIMIT OF MINING EXCAVATION PER THE GEOTECHNICAL SLOPE STABILITY ANALYSIS IS SHOWN ON EXHIBITS C-2, C-3 AND C-4. 3. FOR THE WEST AND EAST CELLS, THE OPERATOR WILL USE DRY MINING TECHNIQUES AND EXCAVATE MATERIAL BY BACKHOE, BULLDOZERS, AND SIMILAR EQUIPMENT. THE MINING FOR THESE PHASES WILL INVOLVE INSTALLATION OF A SLURRY WALL, DE -WATERING ACTIVE MINE AREAS AND PUMPING IN ACCORDANCE WITH THE DISCHARGE PERMIT. 4. TOPSOIL AND OVERBURDEN STOCKPILES SHALL BE TEMPORARILY STORED IN THE AREAS SHOWN. THE STOCKPILES IN THE FLOODPLAIN SHALL BE ALIGNED PARALLEL TO THE FLOOD FLOW DIRECTION OF THE S. PLATTE RIVER, HAVE MAXIMUM HEIGHT OF 30', A MAXIMUM LENGTH OF 300', MAXIMUM 3H:1V SLOPES, AND A MINIMUM OF 100 BETWEEN STOCKPILES. 5. OVERBURDEN AND TOPSOIL STOCKPILES ABOVE EXISTING GRADE, THAT ARE EXPECTED TO BE PRESENT FOR OVER 1 YEAR, WILL BE SEEDED WITH A TEMPORARY SEED MIX AS WEATHER PERMITS. 6. OVERBURDEN AND TOPSOIL STOCKPILES MAY BE STORED IN THE BOTTOM OF THE MINING CELLS IN EAST AND WEST MINING AREAS AS LONG AS THE TOP OF THE STOCKPILES ARE BELOW THE PRE -MINING SURFACE ELEVATION. 7. STOCKPILED TOPSOIL WILL BE SEGREGATED FROM OTHER SOIL. 8. THE OPERATION WILL INVOLVE CONCURRENT MINING AND RECLAMATION WITH FINAL SLOPES BEING 3H:1V, AND PLACEMENT OF 6" TO 12" Of TOPSOIL ON ALL RECONSTRUCTED AREAS ABOVE THE PROPOSED HIGH WATER LEVEL OF THE FUTURE RESERVOIR; AND OTHER DISTURBED AREAS AS NECESSARY. 9. CIVIL RESOURCES, LLC IS NOT RESPONSIBLE FOR SAFETY, IN, ON, OR ABOUT THE PROJECT SITE, NOR FOR COMPLIANCE BY THE APPROPRIATE PARTY OF ANY REGULATIONS THERETO. 10. A MINIMUM OF TEN (10) FEET OF CLEARANCE FROM ANY EXISTING POWERLINE OR FUTURE POWERLINE SHALL BE MAINTAINED AT ALL TIMES AS OUTLINES BY STATE STATUES. 11. UTILITIES SHOWN ON THIS PLAN WERE FIELD LOCATED AT THE TIME OF PLAN PREPARATION. FOR SAFETY, THE OPERATOR SHOULD LOCATE UTILITIES PRIOR TO SLURRY WALL CONSTRUCTION, OR MINING ACTIVITY. 12. PRIOR TO DISTURBANCE OF ANY WATERS OF THE U.S. AGGREGATE INDUSTRIES, INC WILL GET APPROPRIATE APPROVALS FROM THE U.S. ARMY CORPS OF ENGINEERS. 13. NO IRRIGATION DITCHES WILL BE DISTURBED LATERALS THAT SERVE THE PROPERTY WILL BE REMOVED. 14. THE MAXIMUM SLOPE ON EASTERN HIGH WALL EXCAVATIONS THAT ARE 400 FEET OR LESS FROM THE SOUTH PLATTE RIVER SHALL NOT EXCEED 3H: IV BETWEEN APRIL 1 AND SEPTEMBER 30. 15. THE MINING LIMITS SHOWN HEREIN ASSUME SIDE SLOPE AND 3H:1V (EAST AND WEST AREAS) AS DESCRIBED IN THE SLOPE STABILITY AND SETBACK UPDATES MEMO (TETRA TECH, NOV 8, 2019). DEVIATIONS FROM THE ASSUMPTIONS MADE IN THE MEMO IMPACT THE ALLOWABLE GEOTECHNICAL SETBACK. THIS MEMO DOES NOT DOCUMENT SETBACKS THAT ARE BASED ON MUTUAL AGREEMENTS OR ADAMS COUNTY REGULATIONS. Sheet List Table SHEET NUMBER SHEET TITLE C-1 EXHIBIT C COVER SHEET & MINING NOTES C-2 EXHIBIT C PRE -MINING PLAN WEST AREA C-3 EXHIBIT C PRE -MINING EAST AREA C-4 EXHIBIT C PRE -MINING PLAN WELD COUNTY CONVEYOR AREA C-5 EXHIBIT C WEST AREA MINING PLAN C-6 EXHIBIT C EAST AREA MINING PLAN C-7 EXHIBIT C WELD COUNTY CONVEYOR AREA MINING PLAN C-8 EXHIBIT C MINING PLAN DETAILS CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES LLC IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR. INC AGGREGATE INDUSTRIES-WCR INC. WILL KEEP THE DIVISION OF RECLAMATION. MINING. AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE Know what's below. Call before you dig. (:IVIL RESOURCES 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 168/ COLE BLVD. STE 300 GOLDEN. COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS TUCSON SOUTH RESOURCE EXHIBIT C REVISIONS DESCR1P11ON DATE DRAWN BY: CI CHECKED BY: a AUGUST21 DATE. WAI E: AS NOTED AS NOTED 306 NO.: 297.001.09 DWG NAME: EXHIBIT C COVER SHEET & MINING NOTES C-1 MOO C NNW NAM NNA'9.94'19216Ae.IS AN ``` ` — _ \ � \ 1 I I ( ( 1 1 � *\ � J LEGEND: \, YM s 7-... \ _� .7, \\\\\ 1 1 \ I I x 'e'er Ma` \ / _ \ I I At \ \ \ \ \ \ , \� MATCHLINE: SEE VIEW 2 THIS SHEET tand.... , , _ \ ( I \ \ \� � I MINE PERMIT BOUNDARY EXISTING OVERHEAD — —� \ 1 \ 1 1 \\ \\ 1 1 1 II x \\ 11 1\� \�� / N. 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INC 1687 COLE BLVD. SUITE 300. GOLDEN, CO80401 IIII / ! / B50 ACCESS ROAD III / \ x a -1s ' / COUNTY RD 2. BRIGHTON, CO 80603 2405 JOB NO.: 297,001.09 = ' K 8-51 RRIVATE RESIDENCE AND OUTBUILDINGS CHRISTOPHER MUHLER 11585 WELD / e - - - - , i ' ,/ / DWG NAME:caewMrc«w«c•un«..,, - O 8.52 NUMBER INTENTIONALLY NOT USED NA xx� O / / /1 // B-21 ,/ 9500 CIVIC CENTER DR.,THORNTON.CO80229- x - - ! 1'7, TODD CREEK / 4326 315 . 8-53 FENCE CITY OF THORNTON Ora 8-33 FACILITY EASEMENT / ^ 8-z6 . B-34 MW 9500 CIVIC CENTER DR.. THORNTON. CO 80229- 320 B-22 C ? 7 _ .•} OFTHORNTON 4326 -- - EXHIBIT B-54 GRAVEL ROAD CITY 1 \ THE11 E1� - — '- Y,. • B-33 // I N. • -- -- a O6et's selected tom nearest analyzed in stabiky analyses _ PRE EAST R 3 — —r,=�44/ -MINING B-44- ,_ _ _ . — �_ /.fie: __ _.� ,� �_ � .. 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BRIGHTON, CO 80603 U I B-69 OVERHEAD ELECTRIC Z B-70 PRIVATE RESIDENCE AND OUTBUILDINGS HALL IRYNN AGGREGATES LLC 301 CENTENNIAL DR. MILLIKEN. Co 80543 -• D - _ ►--1 B-71 PRIVATE RESIDENCE AND OUTBUILDINGS JAIME MEJIA FRANCIA 636 COUNTY ROAD 23 5 BRIGHTON, CO 80603 I B-72 PRIVATE RESIDENCE AND OUTBUILDINGS TOBY L STRUCK 527 COUNTY ROAD 23 5. BRK#HTON, CO 80603 3-73 TANK BATTERY SYNERGY ENERGY 105 FORD LANE HAZELWOOD. M063402 -- -' W I5-74 GRAVEL R04D CITY Of WESTMINSTER 00 DIR. Of PUBLIC ARKS 4800 W 92ND AVE. WESTMINSTER. C080031 - -- --cc 1 I 6-75 WELD COUNTY ROAD 2.75 WELD COUNTY DEPT OF PUBLIC WORKS 1111 H ST-. GREELEY. 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N KIRIN 0 100 200 1"=200' LEGEND: 1 1 1 1 1 1 1( 1 W OT DW DW DW I vtatttttvvv 1!t V9 91//•••V V. v ottttvv vv vv.tttvvvvv 0 MINE PERMIT BOUNDARY TRACT BOUNDARY EASEMENT EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING WETLAND BOUNDARY EXISTING WETLAND BUFFER EXISTING EDGE OF WATER EXISTING 2' CONTOURS EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC LINE EXISTING OVERHEAD ELECTRIC LINE EXIS I ING GAS LINE EXISTING WATER LINE EXISTING TELEPHONE LINE PROPOSED SLURRY WALL LIMIT OF MINING EXCAVATION PER SLOPE STABILITY ANALYSIS SURFACE DEWATERING TRENCH 12" PIPE FOR DEWATERING MATCHLINE CONVEYOR PROPOSED ACCESS OVERBURDEN STOCKPILE TOPSOIL STOCKPILE TOPSOIL SCREENING BERM W/GRASS COVER SETTLING POND/DISCHARGE POINT EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER UDFCD STABILIZATION EXISTING WETLANDS NORTH CITY OF AURORA RESERVOIR 109+H AVENUE 1 CRY OF THORNTON RESERVOIR PERMIT KEY MAP 4" -es-> NTS CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR, INC AGGREGATE INDUSTRIES-WCR. INC. WILL KEEP THE DIVISION OF RECLAMATION. MINING, AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE Know what's below, Call before you dig. I\II RF S I. R( I t, 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 W W W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS TUCSON SOUTH RESOURCE EXHIBIT C EAST AREA MINING PLAN REVISIONS NO DESCRIPTION DATE DRAWN BY: cI DATE: AUGUST 21 GL SCAT E; AS NOTED AS NOTED CHEL I:LD Bl JOB NO : 297.001.09 DWG NAME seta cVLSI APIA-i'i 3l ..nac I.n%. 1w EXHIBIT C EAST AREA MINING PLAN SHtE I C-6 s t S 50.0' CONVEYOR EASEMENT MATCHLINE: SEE SHEET C-5 168TH AVENUE 1"=2D0' LEGEND: I I I I I I t I 1 t I I I 1 1 I I I MINE PERMIT BOUNDARY TRACT BOUNDARY EASEMENT EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING WETLAND BOUNDARY EXISTING WETLAND BUFFER EXISTING EDGE OF WATER -4900- EXISTING 2' CONTOURS x x x- EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC LINE EXISTING OVERHEAD ELECTRIC LINE EXISTING GAS I INF EXISTING WATER LINE OT EXISTING TELEPHONE LINE PROPOSED SLURRY WALL O LIMIT OF MINING EXCAVATION PER SLOPE STABILITY ANALYSIS SURFACE DEWATERING TRENCH 12" rut FOR DEWI,TCIRIG MATCHLINE CONVEYOR PROPOSED ACCESS OVERBURDEN STOCKPILE TOPSOIL STOCKPILE TOPSOIL SCREENING BERM W/ GRASS COVER SETTLING POND/DISCHARGE POINT EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER UDFCD STABILIZATION EXISTING WETLANDS 33 _ 168 H AV0MIEE T�1 SEC CITY OF THORNTON RESERVOIR j '1 EAST AREA COHWY7 PERMIT KEY MAP CERTIFICATION: NUKh THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR, INC. AGGREGATE INDUSTRIES-WCR. INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING. AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE Know what's below. Call before you dig. 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 80401 21z. -213-7859(P) KIMBERLY DENNIS qz a z z II I REVISIONS DESCRIPTION DATE DRAWN BY: CI CHECKED BY: SiL__ JOB NO.: 297.001.09 DWG NAME :c--c..v EXHIBIT C WELD COUNTY CONVEYOR AREA MINING PLAN SHEET C-7 PHASE 5) NR.VG P,AN.ep.9l2E21 15101 AN A i 2 I GRASS COVER 10'-12' (TYP) HIGH BERM TEMPORARY GRASS SCREENING BERM NTS EXISTING UTILITIES TUCSON STREET NOTE: 1. I HIS DETAIL IS IN I ENDED 1U BE LUNLEPTUAL DESIGN. INSTALLATION OF THE CONVEYOR CROSSING BOX UNDER TUCSON STREET IS SUBJECT TO APPROVAL OF ADAMS COUNTY PUBLIC WORKS DEPT AND COORDINATION WITH EXISTING UTILITIES. TUCSON STREET 4 l CONVEYOR CROSSING DETAIL NTS CNCfl ACC'ENTRANCE ROAD i1- Fa15TND M/Pawl •Ise • T THICIPIESS aO9i' OF PTV•ARIAL cattyOL r a.ea NATENIFL MAIM Z MM A LAYER OF a JMX•Ilk A ITC WI' W TRACKING PAD - r CLEAN MATERIAL 40' 1 ►ARMY* 5Tcrcl.n PLOW to 90' MIAOW SiStUwaR48 T rPIrx BLnal Gimpy 94' fa ROW IV RC* RESERVED is 20' 100' SURFACE MATERIALS: COMPACTED TYPE 2 BASE WITH CLEAN WASHED GRAVEL USED IN THE PARKING AREA THE ENTRANCE ROAD TRACKING PAD SECTION WILL HAVE A MINIMUM 61N DEPTH OF 2" CLEAN GRAVEL A SMALL BERM WILL BE BUILT ALONG THE BACKSIDE OF THE PARKING SPOTS FOR A BACKUP STOP. EXISTING UTILITIES 168TH AVENUE •.' .`u'' &I,-: r: ..4 e9a,„ -?;---.4,24-.. l•.. -s.- 3+ 1/4 ., :v. '1.„, yI. t.. I1All wt ITT -..- - NOTE: 1. THIS DETAIL IS INTENDED TO BE CONCEPTUAL DESIGN INSTALLATION OF THE CONVEYOR CROSSING BOX UNDER 168TH AVENUE IS SUBJECT TO APPROVAL OF ADAMS COUNTY AND WELD COUNTY PUBLIC WORKS DEPT AND COORDINATION WITH EXISTING UTILITIES. 168TH AVENUE CONVEYOR CROSSING DETAIL NIS CONVEYOR NOTE: MAINTENANCE • ROAD MINIMUM 25' SETBACK SEE NOTE #1 TUCSON 1 CONVEYOR ACCESS AND MAINTENANCE ROAD SHALL BE SETBACK A MINIMUM OF 25' FROM TUCSON STREET ON -SITE ABOVE GROUND CONVEYOR SYSTEM DETAIL 60' ROW 10' ROW RESERVED 20' 90' CROSS SECTION ENTRANCE ROAD 17 1 rNeriat-lcsSft EXISTING PAVEMENT MM 6' THICKNESS EROSION (DEPTH VARIES) CONTROL 2' BASE MATERIAL (CLASS 2) WITH A LAYER OF GEOTEXTILE AT THE BOTTOM /- PARKING STOP.'CURB BLOCKS 40 ENTRANCE ROAD 30' PARKING STOP/CURB TYPICAL BLOCK DESIGN IV 5• 9. 97' 1 TRACKING PAD - 2' CLEAN MATERIAL SURFACE MATERIALS COMPACTED TYPE 2 BASE WITH CLEAN WASHED GRAVEL USED IN THE PARKING AREA. THE ENTRANCE ROAD TRACKING PAD SECTION WILL HAVE A MINIMUM 61N DEPTH OF 2' CLEAN GRAVEL A SMALI BERM WILL BE BUILT ALONG THE BACKSIDE OF THE PARKING SPOTS FOR A BACKUP STOP. 9 WEST EMPLOYEE PARKING LOT TYPICAL DESIGN NTS r- EG SLOPE TO DRAIN TYPICAL SURFACE WATER DIVERSION CHANNEL NTS 10 EAST EMPLOYEE PARKING LOT TYPICAL DESIGN NTS LENGTH & WIDTH VARIES SEE TABLE 3' FG SLOPE TO DRAIN CELL POND DIMENSIONS WEST 140x140 EAST 155'x155' TYPICAL DEWATERING POND 6 CROSS SECTION NTS. EG 3 -WIRE FARM FENCE DETAIL NTS PRE -MINING GRADE LIMIT OF MINING EXCAVATION RECONSTRUCTED 3 1 SLOPE INTERIM 0.5:1 SLOPE PRE -MINING GRADE 3' SLURRY WALL TODD CREEK FARMS METRO DISTRICT NO. 1 WATERLINE (LOCATION VARIES) PROPERTY LINE SETBACK TO RESERVOIR TEMPORARY I ACCESS RD EXCAVATION I EXISTING EASEMENT SECTION NT; 20t' MIN LIMIT OF MINING _\ EXCAVATION RECONSTRUCTED 3 1 SLOPE SLURRY WALL TODD CREEK FARMS METRO DISTRICT NO. 1 WATERLINE (LOCATION VARIES) UNDERGROUND POWERLINE PROPERTY LINE OR LIMIT OF MAXIMUM DISTURBANCE n' INTERIM 0.5:1 SLOPE SETBACK TO TEMPORARY VERTICAL EXCAVATION EXISTING UTILITIES RESERVOIR ACCESS RD VARIES EXISTING EASEMENT WCR 23.75 P ' M • .s'i i 1:J� f..(\C J $)&Z4, t--- At 1.>zr)l t. II Rn,5... , �.. ...... .�........ .. .. .. ... SOUTH PLATTE RIVER NOTE: 1. THIS DETAIL IS INTENDED TO BE CONCEPTUAL DESIGN INSTALLATION OF THE CONVEYOR CROSSING BOX UNDER WCR 23 75 IS SUBJECT TO APPROVAL OF WELD COUNTY PUBLIC WORKS DEPT AND COORDINATION WITH EXISTING UTILITIES. WELD COUNTY ROAD 23.75 CONVEYOR CROSSING DETAIL NTS CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR, INC. AGGREGATE INDUSTRIES-WCR, INC WILL KEEP THE DIVISION OF RECLAMATION, MINING, AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE Know what's below. Call before you dig. ( I\ II IZFSURCFS 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 W W W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, S i E 300 GOLDEN, COLORADO 80401 214.213-7859(P) KIMBERLY DENNIS TUCSON SOUTH RESOURCE EXHIBIT C DETAILS REVISIONS NO DESCRIPTION DATE DRAWN BY: Cr DATE AUGUST 21 CHECKED BY: GL SCALE - AS NOTED AS NOTED JOB NO.: 297.001.09 DWG NAME? sraat-, Il4T Y[• •,•u e1wawr.{�n., EXHIBIT C MINING PLAN DETAILS C-8 I EXHIBIT D - MINING PLAN This information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.4 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: Mining Plan The proposed mining plan does not differ from that previously approved by the DRMS. The proposed amended Mined Land Reclamation Board (MLRB) Tucson South Resource mine area is approximately 1.5 miles south of the Aggregate Industries Wattenberg Lakes Mine (M-2004-051), which supplies aggregate construction materials to much of southern Weld and western Adams counties. The amended area will be a conveyer easement that will allow for export of mined material from the Tucson South Resource to the Wattenberg Lakes Mine. The amended Tucson South Resource Permit Boundary contains substantiated aggregate resources to continue the supply in this region of Colorado. Supplementing resources at the Wattenberg operation, new supplies from the amended Tucson South Resource will continue to provide construction materials to meet the Front Range Colorado demand. Introduction and Overview The amended Tucson South Resource permit area is currently owned by Aggregate Industries-WCR Inc., the City of Aurora, Adams County, Yoshi and Suzu, LLLP, Dorothy and James Struck, and Toby Struck. The permit area consists of dryland and irrigated agriculture, a reclaimed gravel resource, a partially reclaimed gravel resource, and a former greenhouse growing operation. Above ground structures at the greenhouse have been demolished and removed from the site. Below grade features will soon be demolished and hauled from the site. The previously permitted property is located north of Colorado Highway 7, bisected by Tucson Street. The amended area, providing an area for the conveyor easement, is along the east side of Tucson Street, the south side of 168"' Ave. (aka Weld County Road 2), and the west side of Weld County Road 23.5 before crossing over Weld County Road 2.75 entering the Wattenberg Lakes facility. Aggregate Industries has entered into agreements with the City of Aurora, Yoshi and Suzu LLLP, Dorothy and James Struck, and Toby Struck to allow for the conveyor easement crossing. Mining of the Tucson South Resource is proposed to happen in two phases. The West Area (Phase 1) is located north of Colorado Highway 7 and west of Tucson Street, and the East Area (Phase 2) is located north of Colorado Highway 7 and east of Tucson Street. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application Exhibit D -1 In general, drainage on the site flows toward the South Platte River to the north and east of the property. The drainage pattern in the West Area either flows to local low spots on the property, is conveyed off -site to the north, or is conveyed via an irrigation return ditch to the East Area. The East cell generally drains north and east to the river via overland flow or through existing channels and ditches left by historic disturbance. Drainage at the amended area flows to local low spots before being conveyed to existing gravel mines locate north of the site. With this project the Permit Boundary and the Affected Lands are different areas, as explained below. Permit Boundary Area The proposed Permit Boundary contains the following areas as shown on Exhibit C-1 and Exhibit F-1: • Tracts of land owned by Aggregate Industries-WCR, Inc. referred to on our mapping as Tracts A, B, D, E, F, H, and M. • Tracts of land owned by the City of Aurora referred to on our mapping as Tracts C, G, K, and N. • Tucson Street right-of-way referred to on our maps as Tract L. • East 168th Avenue right-of-way referred to as Tract O. • Land owned by Yoshi and Suzu, LLLP referred to on our maps as Tracts P and Q. • Land owned by Dorothy and James Struck is referred to as Tract R. • Land owned by Toby Struck is referred to as Tract S. Affected Land The Affected Land includes all Tracts described in the Permit Boundary except Tract K, which is owned by the City of Aurora. This area is located east and west of the Brighton Ditch and will not be disturbed by the mining activities and reclamation operations. Therefore, it was excluded from the Affected Land. Aggregate Industries had previously planned to mine a South Cell which was removed from the permit with the execution of Technical Revision 2 (TR-02, Acreage reduction). Existing Land Uses The proposed Tucson South Resource mine currently consists of dryland and irrigated agriculture, one house (with outbuilding) and the former greenhouse growing operation described above. A Todd Creek water well and associated United Power overhead electric line on the west side of the West area will also be removed. Aggregate Industries purchased the Todd Creek water well parcel and entered into an agreement to relocate the well to an area adjacent to the river. The relocated well is shown on Exhibit C-3. The applicant has contacted United Power regarding removal of the existing electric service and will forward the documentation regarding removal Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application Exhibit D - 2 of the service line upon receipt. There is one rural residential property located adjacent to the mine on Tucson Street, several more rural residential properties located south of Tracts A and H and Highway 7, and several more rural residential properties located along Baseline and Weld County Road 23.5 along the conveyor alignment. In addition, there is a developing residential subdivision located west of Track K. The South Platte River corridor receives recreational use and the City of Brighton operates a parks and wildlife recreational area north of Highway 7 and east of Tract H along the west side of the South Platte River. Improvements owned by the applicant or property owners that are located within the Permit Boundary Area such as un-improved roads, fences, alluvial water wells and associated pumps, houses and outbuildings, irrigation ditches and laterals, may be removed or relocated during mining and reclamation. There were two oil and gas wells and associated facilities located on the property. The wells were plugged and abandoned per Colorado Oil and Gas Conservation Commission standards and the associated facilities have been hauled from the site. Structures, easements, or rights - of -ways not owned by the applicant or property owner will not be disturbed without prior permission (see Exhibit C Pre -Mining Maps). None of the easements, rights -of - ways, or associated structures are expected to be negatively affected by mining or reclamation operations. Nature of Deposit to be Mined Test borings indicate a layer of topsoil and overburden ranging from 1 to 11 feet in depth with a typical overburden depth of 5 feet. The typical depth of topsoil to be removed is 6". In the western part of the site, the topsoil has been tilled until recently and likely contains a significant amount of organics. The overburden is underlain by an aggregate layer with a thickness ranging from 0 to 46 feet with a typical thickness of 25 feet. In some parts of the sites, the aggregate layer contains a 2- to 9 -foot thick mud lens. The total depth to bedrock from the surface grade ranges from 5 feet in the west to approximately 50 feet in a paleochannel in the eastern part of the site. The typical depth to bedrock is approximately 27 feet over most of the mine area. The aggregate layer overlies sedimentary bedrock of the Denver Basin. A soils report is attached in Exhibit I herein for reference. Mine Phasing Aggregate Industries anticipates mining and reclaiming the proposed Tucson South Resource site in approximately 5 to 8 years. The rate of mining and overall life of the mine is dependent on several factors including product demand and operational needs. Test borings have verified that commercial deposits of sand and gravel exist up to 50 feet below the surface of the ground. In addition to the commercial sand Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application Exhibit D - 3 and gravel materials, clay, silt, and other non -marketable materials excavated from the proposed permit area will be used on -site for reclamation. The mining plan currently includes mining in two phases. Mining may occur simultaneously in more than one phase. The actual sequence may change depending on market conditions, operational needs, or site conditions: • West Area (Phase 1), is located north of Highway 7 and west of Tucson Street and included Tracts A, B and C • East Area (Phase 2) is north of Highway 7 and east of Tucson Street and includes Tracts D, E, F, G and H Tracts N, O, P, Q, R, and S will contain the conveyor to export product off -site to the Wattenberg Lakes Site and will be used during all mining phases. Mining will begin in the West Area (Phase 1). Once mining is complete in the West Area, mining will commence in the East Area (Phase 2). All necessary permits will be obtained. A summary of mining phases is presented in the table below. Processing and sale of the material will occur on the Platte Valley site (M-1989- 120). Overburden from the West and East Areas will be used to reclaim the cells. If there is excess overburden material, the material will be conveyed to the Platte Valley site and Wattenberg Lakes site for reclamation. A slurry wall will be constructed around the East and West Areas prior to exposure of the water table. The slurry wall has been designed and is attached to this exhibit. Mine Phasing Summary Mine Phase Total Acreage To be Duration (years) West 72.0 4 East 83.8 4 Tot 155.8 8 Mining Methods The method of mining used within the permit boundary: • The slurry wall liner for the West and East Areas will be installed prior to exposure of ground water at the site. Once the slurry wall is installed the West and East Areas will be dewatered. The deposit will be dry mined using dewatering trenches and pumps within the slurry lined area. Prior to excavation of each mining phase, trenches will be cut along the perimeter of the excavation to begin dewatering the sand and gravel material. The trenches will extend through the overburden and alluvium to bedrock. Pumps will be used to remove the groundwater that drains from the deposit within the lined excavation. If necessary, water from the trenches will be circulated through a settling pond prior to being discharged to adjacent drainage ditches and/or the Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit D - 4 South Platte River (see Exhibit C Mining Maps). As excavation begins, the mining cell and dewatering trenches on the floor will continue to collect any water entering the lined Areas, keeping the deposit material relatively dry. The collected water will be directed to settling ponds within the Areas or near the final discharge point to South Platte River. It is anticipated that dewatering will be completed within the slurry wall lined mining area within 12 months and dewatering throughout the life of the mine will be limited to precipitation, stormwater runoff that drains into the mining area, and minor amounts of groundwater. Earth Moving Setbacks from the top of slope of each area to the proposed permit boundary or man- made structures not owned by the applicant or by agreement with the structure owner will generally be 30 feet or greater. Specific setbacks from Highway 7 and Tucson Street also account for future expansion of the roadways. The perimeter setbacks from the structures are shown on Exhibit C - Mining Maps. These setbacks were determined in combination with Adams County regulations and the Slope Stability Analysis prepared by Tetra Tech provided herein in the Geotechnical Stability Exhibit. The setbacks reflect the Factors of Safety in the Proposed Slope Stability/Geotechnical Analysis Policy in the DRMS memorandum dated May 16, 2018. Areas to be mined will be prepared by removal of topsoil and overburden. Each preparation area may be as much as 100 feet wide along the anticipated mining face. Usually, only enough area is stripped and prepared to provide the estimated needs for the next 10 to 14 months of mining. Surface topsoil material will be stripped separate from the underlying, deeper subsoil or overburden material. This topsoil layer contains most of the soils organic matter and will be stockpiled separately for use in reclamation. Once the topsoil has been removed, the rest of the overburden will be stripped and stockpiled separate from the topsoil. When the alluvial material is exposed and sufficiently dewatered, the aggregate material will be recovered using equipment typical for sand and gravel mining operations. In the West and East Areas, the aggregates will be mined using conventional dry mining methods. Earth moving equipment may include, but is not limited to, dozers, loaders, scrapers, and excavators as mining progresses to a depth of 20 to 50 feet below the surface. The alluvial material is an unconsolidated deposit and, therefore, no blasting is required. The aggregate material from the Areas will be temporarily stockpiled within the various Areas, conveyed to the staging area, or immediately transported off -site for processing. During mining and reclamation activities, watering trucks for dust control will be used as needed. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application Exhibit D - 5 The active mining face will extend no more than 2,300 feet in length. During mining and prior to reclamation in the West and East Areas, the mine walls will be a nearly vertical to'AH:1V slope (see Exhibit C, Mining Maps). Mining will progress down to the depth of quality aggregate material. Backfilling and/or grading of side slopes may follow behind the mining activities before mining in the Area is complete. Concurrent reclamation will be practiced when the highwall reaches the mine limit. During the flood season April 1 through September 30 and when the highwall is within 400 feet or less of the river the highwall will be no steeper then 3H:1 V. As mining progresses, topsoil, overburden, and non -marketable materials will be removed and stockpiled for use in reclamation activities. Overburden from the West Area and East Areas will be used in reclamation. Should there be excess overburden on these cells, the material will be conveyed to the Platte Valley site for reclamation or to be sold. During mining in the West and East Areas, topsoil will be segregated and stockpiled in the locations shown on Exhibit C Mining Maps, i.e. outside of the Floodway. As mining progresses, overburden will be taken directly to mined out slopes for use in reclamation. Topsoil and overburden stockpiles will be configured to have side -slopes no steeper than 3H:1 V. If the stockpiles are inactive for more than one growing season, such as the stockpiles used for screening, they will be seeded with the fast-growing grass seed mixture below. Stockpile Grass Seed Mixture Grass Species Rate (#PLS/ac Luna Pubescent Wheatgrass 15.0 Amur Intermediate Wheatgrass 15.0 Rates are for broadcast seeding. Other than those used for screening, long-term stockpiles are not anticipated. Temporary stockpile materials will continually be used for reclamation and the stockpiles will likely be disturbed on a frequent basis and seeding the stockpiles may not be practical during the operation. If stockpile seeding is not used, surface roughening will be maintained to limit wind and water erosion. Most of the proposed Tucson South Resource Permit Boundary Area is within the regulatory floodplain of South Platte River. Because of floodplain regulatory restrictions, stockpiling will occur within a mining Area whenever possible with the top of stockpile elevation lower than the pre -project grade. Stockpiles within the modeled floodplain above the existing ground surface will generally be created parallel to potential South Platte River flood flows. The stockpiles will be no longer than 300 feet, with minimum spacing of 100 feet between stockpiles for flood flows to pass (see Exhibit C, Mining Maps). The screening stockpiles along Highway 7 as Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application Exhibit D - 6 indicated by modeling, are located in areas where placement is not expected to impact floodplain water surface elevations. Consequently, there is no restriction on length or orientation. The impacts of stockpiles on floodplain water surface elevations is presented in the Floodplain Use Permit application approved by Adams County. Additional mining and reclamation procedures will be used within the regulatory floodplain to mitigate impacts from potential flood flows. Flood season is considered to be April 1 through September 30. The southern and eastern slopes of each area will either be maintained at 3H:1 V during the flood season during mining or concurrently reclaimed at 3H:1 V with reclamation backfill. This restriction only applies for areas within 400 feet of the South Platte River in accordance with DRMS policy. If flood waters reach the mining Areas prior to complete reclamation, the 3H:1 V slopes will allow more controlled flow into the Areas while reducing the potential for head cutting and capture of the South Platte River. A Floodplain Use Applications have been approved by Adams and Weld Counties for this project. Adams County may request review and comment from Mile High Flood District (MHFD). Comments and revisions from the County or the MHFD will be incorporated into the final Floodplain Use Permit. The table below illustrates a point in time when the mining disturbance could be at its maximum. At the proposed Tucson South Resource site, it is assumed that the mining disturbance will be at its greatest when the East Area mining is nearly complete. That will be a time when the slurry walls are installed and, topsoil replacement and initial seeding will be completed for the West Area. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application ExhibitD-7 Mining Operation Disturb ed Area (acres) Active Mining Area: 1. Backfill remaining East Cell mining face and side slopes (2,300 feet in length averaging 27 feet deep requiring backfill and rough grading to 3H:1 V slopes.) 2. Rough Grade remaining disturbed areas of the east cell 3. Replace topsoil on backfilled area of East cell above the HWL of the reservoir (61.5 acres) 4. Final Grade East Cell Miscellaneous Disturbed Areas (Stockpiles, Haul Roads, Conveyor route) 1. Replace topsoil on internal haul roads and main site entrance (3 acres x 0.5') 2. Replace topsoil on conveyor route (11.5 acres X 0.5') 3. Replace topsoil on stockpile area (5 acres x 0.5') 4. Scarify internal haul roads and conveyor route areas 5. Final grade all miscellaneous areas (8.3 acres x 0.5') 6. Reseed 20% of all areas in the area of disturbance above Final Reclamation: 1. Seeding — entire East Area above the highwater line of the reservoir plus internal haul route and the conveyor route. 2. Weed management and re -seeding (20% of the Affected Lands located above the highwater line of the reservoirs) Total Disturbed Area 83.8 Diversions and Impoundments Roads and irrigation ditches will effectively minimize stormwater surface run-on to the mining site, so run-on diversion structures are not anticipated. During the initial mining activities, stockpiling of topsoil and overburden on the surface is anticipated. Diversionary channels, as shown on Exhibit C, will be used divert surface runoff from leaving each of the Areas or entering the wetlands areas. Surface diversion channels will convey runoff to settling ponds, prior to discharging to the South Platte River. As mining progresses and the excavation increases in size, diversionary channels will convey less runoff because more runoff will enter the mine excavations. Runoff that collects in the excavations will be conveyed by the dewatering trenches to a common point, where it will be pumped to the river after sediment settling has occurred, if necessary. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application Exhibit D - 8 Material Processing and Associated Facilities Pit run material will be conveyed off -site to the Wattenberg Lakes site (M-2004- 051) to be conveyed for processing at the Platte Valley site (M-1989-120). Commodities to be Mined and Intended Use Sand and gravel for use as construction materials will be the primary products produced from the proposed Tucson South Resource. Test pits have verified that commercial deposits of sand and gravel exist up to 50 feet below the surface of the ground. In addition to the commercial sand and gravel materials, topsoil and overburden materials will be used on -site for reclamation. Use of Explosives The material is unconsolidated deposits, no explosives are required. Wetlands The Department of the Army published an Approved Jurisdictional Determination on July 23, 2019 attached to Exhibit J. No jurisdictional wetlands will be disturbed during mining. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application Exhibit D - 9 EXHIBIT E — RECLAMATION PLAN This information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.5 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: The proposed mining and reclamation plan focuses on minimizing the ecological impacts of mining, minimizing the length of time of impact, and maximizing long-term benefits. Reclamation Plan The previously approved reclamation plan for the two mining areas (West and East) remains the same. The amended off -site conveyor route will be reclaimed as uplands meadow and agricultural. Reclamation activities have been coordinated with the property owners and are intended to meet the proposed final land use. Aggregate Industries (AI) has set forth measures that will be taken to meet performance standards for the following requirements: (1) Grading shall be completed to create a final topography appropriate to the final land use selected in the Reclamation Plan. (2) Overburden and waste materials will be placed in the mined area in a manner to ensure adequate compaction for stability and to prevent leaching of toxic or acid-forming materials. (3) All grading will be done in a manner to control erosion and siltation of the affected lands, to protect areas outside the affected land from slides and other damage. (4) All backfilling and grading will be completed as soon as feasible after the mining process. Al has established reasonable timetables consistent with good mining and reclamation procedures. (5) There is no anticipated refuse, acid-forming or toxic producing materials associated with this site. (6) Any drill or auger holes that are part of the mining operation will be plugged with non- combustible material, which shall prevent harmful or polluting drainage. There are no adits or shafts associated with this site. (7) Maximum slopes and slope combinations will be compatible with the configuration of surrounding conditions and selected land use. In all cases where a lake or pond is produced as a portion of the Reclamation Plan, all slopes, shall be no steeper than a ratio of 3:1 (horizontal to vertical ratio). There is no swimming associated with the end use of this property. (8) Future agricultural use is anticipated along the Weld County portion of the conveyor alignment. Native topsoil will remain or be returned to this area of the conveyor in a manner that historic crop yields can be maintained. Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit E -1 (9) Upland meadows on the northern portion of the East Cell and along the portion of the conveyor alignment along the City of Aurora Challenger Reservoir site in Adams County will be graded to allow for access to maintain the area. (10) Al may backfill material generated within the MLRB permitted area into an excavated pit within the permit area. Al may import inert structural fill material onto the site for backfill. Prior to import of inert structural fill generated outside of the approved permit area, Al will provide DRMS with notice of any proposed backfill activity not identified in the approved Reclamation Plan. Al will maintain a Financial Warranty at all times, adequate to cover the cost to stabilize and cover any exposed backfilled material. The Notice to DRMS shall include, but is not limited to: (a) a narrative that describes the approximate location of the proposed activity; (b) the approximate volume of inert material to be backfilled; (c) a signed affidavit certifying that the material is clean and inert, as defined in Rule 1.1(20); (d) the approximate dates the proposed activity will commence and end, however, such dates shall not be an enforceable condition; (e) an explanation of how the backfilled site will result in a post -mining configuration that is compatible with the approved post -mining land use; and (f) a general engineering plan stating how the material will be placed and stabilized in a manner to avoid unacceptable settling and voids. (11) All mined material to be disposed of within the affected area will be handled in such a manner to prevent any unauthorized release of pollutants to the surface drainage system. (12) No unauthorized release of pollutants to groundwater shall occur from any materials mined, handled or disposed of within the permit area. More specific information regarding how Al will comply with the performance standards is outlined below. Final Proposed Land Use The current land use for the Tucson South Resource property is a combination of partially reclaimed mining area, reclaimed mining area, and dryland and irrigated agriculture, upland meadow and a City of Aurora water facility. The City of Aurora water facility (located outside the Affected Lands, west of the Brighton Ditch) will be removed from the Permit Boundary at a future date and continue to operate. The proposed final land use for the remainder of the property is lined municipal water storage for the West cell and the majority of the East cell, upland meadow on the northern portion of the East cell and conveyor alignment along the City of Aurora Challenger Reservoir, and irrigated and dryland agriculture along the Weld County portion of the conveyor alignment. Surrounding land uses include: Water storage to the north, rural residential and agriculture to the south and along the Weld County portion of the conveyor alignment, Town of Brighton wildlife conservation area and the South Platte River to the east and water storage and suburban residential to the west. The lined storage and upland meadows are compatible with existing and future adjacent land uses. This property lies within the City of Brighton Urban Growth area and is designated as natural resource conservation and flood plain on the 2016 Future Land Use Map. General Overview of the Reclamation Plan Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit E - 2 Types of Reclamation acres Reclamation of the proposed permit area will contain three land forms; uplands, agricultural, and lined, open water reservoirs. Cottonwoods and shrubs will be planted along the South Platte River on the eastern side of the east cell. Timing and installation of the plantings will be coordinated with the Urban Drainage and Flood Control District. It is anticipated that these plantings will be established as part of the concurrent reclamation of the site. Plantings will be installed when mining commences in the East Cell (Phase 2). Plantings will be installed by a reclamation contractor in September and hand watered until the ground freezes. Plantings will be monitored in the spring to make sure they are leafing out, replaced as necessary to provide the quantities as originally installed and watered as necessary through the first three growing seasons to establish. Common Name Botanical Name Planting Size Quantity Plains Cottonwood Populus deltoides 10 gallon 36 American Plum Prunus americana 1 gallon 40 Choke Cherry Prunus virginiana 1 gallon 40 Western Sand Cherry Prunus besseyi 1 gallon 40 Coyote willow Salix exigua 1 gallon 40 The primary reclamation process will be backfilling the slopes of the mined -out areas to be reclaimed as reservoirs backfill of the partially reclaimed area on the northern end of the East cell to create an upland meadow. Overburden, and non -marketable materials from the site will be used as backfill. As mined out cells are backfilled, rough grading will establish the slopes and elevations necessary to facilitate the appropriate land form for that specific area of the site. In upland areas backfill materials will be placed to an elevation near or below the premining surface elevation. For areas where reservoirs are to be located, backfill will be used to create pond side slopes. Pond depth may extend all the way to bedrock and side slopes will be 3H:1 V or flatter. Except for pond slopes below normal average highwater surface elevation, all areas disturbed by mining activities will be prepared with topsoil to a minimum of 6 to 12 inches and revegetated during reclamation. Revegetation will generate a blend of upland grass species. Given suitable precipitation, seeding should produce good vegetation cover over much of the reclaimed site. Roads not necessary for future access and other disturbed areas will be reclaimed with topsoil and overburden replacement and vegetative cover to stabilize the areas and minimize erosion. Reclamation Measures/Materials Handling All available topsoil and overburden material will be used for backfilling and reclamation. Earth moving equipment may include, but is not limited to dozers, loaders, scrapers, and excavators. Additional farm equipment for grading and seeding may be used for revegetation activities. Materials Handling- Backfilling The site will be concurrently reclaimed to create the water storage reservoirs. Compaction for the reservoir side slopes at this site will be 95 percent (or better) Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit E - 3 standard proctor. When an area is completely mined out from grade to bedrock, each section approximately 800 -foot -wide (or approximately 30 acres), will begin side slope construction while the next contiguous area or consecutive phase is beginning mining. Due to the floodway, there is limited space for stockpile placement at this site; by concurrently reclaiming, as an area is being prepared for mining, the overburden and topsoil can be stripped and immediately placed, or stockpiled in the previously mined area, limiting the material handling. It is estimated that within 6 months of an area being completely mined, it will be reclaimed. Backfilling of mining cells and other reclamation activities will be concurrent with mining. Topsoil, overburden, and non -marketable material excavated during mining will be used almost immediately. The reserved topsoil and overburden will be used to create the finished grade prior to revegetation. Small temporary stockpiles may be created within or along the edge of the mining cells. When enough material is available in the stockpile, the material will be graded into the previously mined areas. Locations of topsoil and overburden stockpiles are shown on Exhibit C Mining Maps. Material may be imported for reclamation if on -site material is insufficient to create the reclaimed pond slopes. Prior to receiving any backfill material from outside the proposed permit area, the operator will provide notice with information that includes the backfill location and volume of off -site material to be used, an affidavit certifying that the material is clean and inert, an approximate time frame for backfilling with off -site material, and an update regarding material placement procedures and the final reclamation configuration. The on -site or offsite backfill material used will not contain known toxic or hazardous materials. All backfilling and grading will be done to stabilize the material and control erosion. Final grading and seeding will be done as soon as possible after backfilling, grading, and top soiling have been completed. The reclamation will not leave high walls on the property. In addition, there will be no auger holes, excavations, or shafts left on the property. Materials Handling — Grading Once backfill is placed to the approximate final grade for upland meadow, pond side slope creation, or agricultural reclamation; the area will be rough graded to establish final elevations, slopes, and transitions. Final grading will include addition of topsoil and surface preparation for revegetation. Special attention shall be given to transitions from reclaimed areas to undisturbed land. The final topography will not create new surface drainage directed onto adjacent properties. Reservoir side slopes will include the steepest reclaimed grades on the site, potentially as steep as 3H:1 V. The side slopes will be graded smooth to accommodate future maintenance of the lined reservoirs. The reclamation will not leave high walls on the property. Materials Handling- Soil Bentonite Slurry Wall The proposed slurry wall will provide a vertical low permeable cutoff between alluvial groundwater outside of mining cells and water stored below -grade inside of mining cells. Slurry walls (also known as slurry cutoff walls) are non-structural liners constructed to provide a primary low permeability liner and isolate a mining cell from the existing alluvial Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit E - 4 aquifer. Soil-bentonite slurry walls are a very common type of liner constructed in Colorado. Construction of a soil-bentonite slurry wall liner is planned at the Tucson South Resource East and West cells. Once the liners are constructed and meet an SEO required 90 -day minimum leak test, lined water storage reservoirs located north of State Highway 7 will be available for use. Draft Technical Specifications dated July 2004 for the construction of soil bentonite slurry wall liners at Tucson South in Adams County Colorado were prepared by Tetra Tech RMC and submitted to the Division for review. These specifications are a "placeholder" and are on record with the Division as part of the existing permit for this property. Aggregate Industries has contracted with Civil Resources, LLC. to provide a final design of a soil-bentonite slurry wall liner for Tucson South. The applicant will submit a Technical Revision with the updated final design. The slurry wall will be constructed with a long reach excavator or other suitable trenching equipment. A trench approximately 3 feet wide and 100 to 150 feet in length will be excavated through the existing alluvium and several feet into the underlying claystone and sandstone bedrock. The total slurry wall depth varies from top to bottom based on the existing geology but will average 30 feet deep for this project. The trench will be flooded with fresh bentonite slurry to stabilize the excavation during construction of the slurry wall. A mixture of alluvium excavated from the trench, dry bentonite, and clayey supplemental fines will be mixed at the surface and placed into the trench in a semi -fluid state typically with a bulldozer and/or second excavator. The slurry in the trench is displaced by the soil-bentonite backfill as the excavation of the trench is advanced. Once the excavation of the trench followed by the backfill operation is complete, the soil-bentonite backfill consolidates and behaves as a soft clayey soil. The top of the slurry wall is typically capped with a few feet of clayey soils to speed up the primary consolidation, identify the approximate location of the slurry wall, and provide clayey soils to fill depressions due to the consolidation of the slurry wall. Other considerations required for successful construction of a soil-bentonite slurry wall include a stable, relatively flat gently sloping (i.e. less than 1 percent parallel to the wall) construction platform along the proposed slurry wall alignment. Construction of the construction platform along the slurry wall alignment is primarily on stable, native soils found at the site and should not present a challenge for construction equipment. There are narrow areas proposed for the construction platform at this site. However, the narrow areas are relatively short and soil-bentonite slurry wall construction activities should not be greatly affected by these sections. Once soil-bentonite slurry wall construction is complete, the construction platform will be final graded for stability and an operations and maintenance access route will be left in place. The route will be reclaimed and stabilized as a low traffic dirt road. Gravel Pit Lining Criteria Gravel pit liners are designed with the goal of meeting the leakage requirements outlined in the State of Colorado's document entitled "State Engineer Guidelines for Lining Criteria of Gravel Pits,"August 1999. As described in the guidelines, the intent of the soil-bentonite slurry wall design is to reduce the groundwater inflow (leakage rate) into the lined below -grade mining cell to at or below the Design Standard. The Design Standard is defined in the guidelines as the leakage rate that is not greater than 0.03 ft/day multiplied by the curtain area of the soil-bentonite slurry wall (i.e. the length of the perimeter wall in feet multiplied by the average vertical depth of the wall as measured from the ground surface to the mine cell floor along the toe of the cell side slope), plus 0.0015 ft/day multiplied by the area of the floor encompassed by the soil-bentonite liner. The guidelines allow for a liner to meet a performance standard Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application Exhibit E - 5 which is three times the Design Standard and operate as a lined water storage cell. Monitoring and release requirements are increased from monthly reporting to weekly reporting for liners that meet the Performance Standard. At the completion of construction, the liner is subjected to a minimum 90 -day leak test as described in the guidelines. Topsoil and Revegetation Revegetation will only include grass seeding of disturbed areas. No tree or shrub planting is planned around the perimeter of the reservoirs. In areas reclaimed for agricultural purposes, the site will be graded with the native topsoil and planted with crops at the discretion of the property owner. Where required, topsoil will be replaced to a depth of 6 to 12 inches. Topsoil will be placed after backfilling and rough grading is completed. As an area is reclaimed, runoff or excess water from adjacent areas will not be allowed to flow over slopes being graded and seeded. If needed, berms or channels will be constructed to divert excess water and dispose of it in a safe and non -erosive manner. Seeding of disturbed areas will be done as areas are finished with preparation including grading and topsoil spreading. Seeding will be most successful if done between mid - November and the end of April. Seeding can be performed in May, if necessary, but after May it is not advisable to plant. Seeding before November is not advised as the potential for a warm growth environment and early germination would likely result in a major failure of the revegetation and require reseeding. Fertilizer may be applied to re -soiled areas in a manner that will encourage emergence and survival of the grasses without encouraging competition from weeds. Starter fertilizer can be applied before, or at the time of, seeding. If necessary, full fertilization will be applied after emergence. Fertilizer mixtures will be based upon soil tests made on samples taken from re -soiled areas prior to seeding. If a significant invasion of noxious weeds occurs after seeding, the weeds will be mowed before they can go to seed. The areas will be mowed periodically for additional control as needed. Mechanical control will be used as a first priority. Chemical methods will only be used if no other alternative produces acceptable results. Periodic inspection for noxious weeds, at least once a year early in the season, will be done. The weed inspection will search for not only the expected species but also any new List A or List B species introductions. It is likely that non -noxious and List C species will also be found. Non -noxious weeds, which are often native invaders, do not need to be controlled, but if the population of a List C species is controllable then it will be included in the control program. List C noxious species are problematic but are usually not as serious as List B species. Specific information regarding weeds is included in the Biological Resource Inventory included with Exhibit H. Aggregate Industries utilizes an integrated weed management protocol to manage weeds on their active mining sites this protocol includes: 1. Management Objective Manage noxious weeds and plant pests within the permit area. Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit E - 6 2. Weed Species to be Controlled Aggregate Industries- WCR, Inc. (Al) will control those plant species identified by current State statute or regulation as noxious. Plant pests are defined as those biological species that significantly predate the desirable vegetation of the project site. 3. Weed Management Actions • Monitoring The presence of noxious weeds and plant pests will be monitored annually, at which time weed control efforts will be reviewed and specific management measures adjusted as necessary. Management measures will be undertaken where a single or combination of noxious weed species or plant pests comprises or shows a deleterious effect to the live vegetation cover in the mitigation area as determined by observations of a revegetation or weed control specialist. • Control Measures Al will contract with a licensed herbicide applicator/weed management specialist to implement the weed management plan. Noxious weeds or plant pests may be controlled by any combination of cultural, mechanical, biological, or chemical measures. Weed control measures will be developed specifically for the noxious weed species encountered and in consultation with Adams County, local weed control district and/or the Colorado State Department of Agriculture as necessary. Topsoil slated for removal from the site will be treated with a long- term residual pre -emergent or post -emergent herbicide to reduce noxious weeds prior to removal. Al will conduct an aggressive mowing program the first year following revegetation, withholding herbicide use until the following year to avoid damaging new seedlings. Herbicides will be applied by a licensed commercial applicator. Stockpiles that remain undisturbed for more than one season will be seeded with a temporary cover crop. Where noxious weed control measures cause disturbance to the remaining vegetation, seeding or planting of desirable replacement vegetation will occur during the first normal planting or seeding season after weed control measures have been implemented and deemed successful. • Contact Person(s) During mining, the Operations Manager at the site will be the contact person for weed control. When mining is completed, the weed control contact person will be Aggregate Industries' operations staff at the corporate office in Golden, Colorado. Aggregate Industries will be responsible for weed control until the site is released by DRMS. At that time, responsibility for weed control will transfer to the land owner. The grass seed mix, composed of a long lasting and regenerating native upland seed mixture, will be used in upland areas where no future irrigated/dryland agriculture or other development is anticipated. The native open space seed mix recommendation is presented below. Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit E - 7 Upland Meadow Grass Seed Scientific Name Variety % of Mix Application Rate (PLS/acre) Big Bluestem Andropogon gerardii Kaw 15% 1.7 Blue Grama Bouteloua gracilis Hachita, Lovington 10% 0.3 Green Needlegrass Nassella viridula Lodom 15% 1.5 Sideoats Grama Bouteloua curtipendula Vaughn, Butte 10% 1.0 Switch grass Panicium virgatum Blackwell 20% 2.0 Western Wheatgrass Pascopyrum smithii Arriba, Barton 30% 4.8 Total 11.3 *Application rate is for drill seeding. If seed is to be broadcast, the application rate will be doubled. Temporary Stockpile Vegetation: Luna Pubescent Wheatgrass- 15 lb./ac Amur Intermediate Wheatgrass - 15 lb./ac Upland grass seed will be planted with a drill equipped with depth bands and press wheels. The seeded area will then be covered with certified weed -less straw mulch at a rate of 2,000 pounds per acre. The straw will be crimped into the soil to control erosion until the grass becomes established. Drill seeding is the preferred method for revegetation. If broadcast seeding is necessary on moist soils, steep slopes, or in excessively rocky areas, success can be encouraged by broadcasting onto growth medium that is very loose. If the seed is broadcast in those circumstances, then the seeded area will be dragged to help bury the seed. Wildlife Current wildlife conditions and potential impacts are described in Exhibit H, Wildlife Information. Water- General Requirement To minimize the effect on the prevailing hydrologic balance, the operator shall: a. Comply with all applicable Colorado water laws. b. Comply with all applicable Federal and State water quality laws and regulations. c. Comply with all Federal and State requirements for dredge and fill. d. Perform all work to minimize erosion and sediment transport. Current water resource conditions and potential surface water and groundwater impacts are described in Exhibit G, Water Information. Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit E - 8 Groundwater- Specific Requirements Current water use on the proposed Tucson South Resource site consists of a permitted well field along the eastern portion of the site, adjacent to the South Platte River (owned and operated by the Todd Creek Metropolitan District) and limited depletions from existing, non jurisdictional wetlands on the site. The well permit for the gravel mining operation is also in place. Copies of the well permit and well completion report are included in Exhibit G, Water Information. This site is included in Aggregate Industries Substitute Water Supply Plan (SWSP) for the South Platte River. Specific information regarding water resources is included in Exhibit G. This plan will cover the depletions associated with water removed from the site with the material during mining. Once the site is reclaimed there will be no ongoing depletions associated with the property. The West and East cells will be reclaimed to lined water storage reservoirs. Groundwater will not be exposed along the conveyor alignment. Tucson South Resource Groundwater Modeling Study on the hydrogeologic effects of Mining, prepared by Tetra Tech RMC dated August 2004 is attached herein for reference. A groundwater monitoring and mitigation plan was submitted to the Division as part of an adequacy response to Mr. Larry Oehler dated November 22, 2004 (pages 17-19). The plan was reviewed and approved by the Division as part of the original permit for the site. A copy of the approved plan is attached herein for reference in Exhibit G. Aggregate Industries obtained a well permit for the site in 2017 and filed the well completion report with the Colorado Division of Water Resources in 2018. A copy of the well permit and well completion report are also included in Exhibit G. The mining and reclamation operation will not affect groundwater quality on or off the site. The operation will comply with State groundwater quality standards. Due to the absence of significant sources of potential pollutants, groundwater quality monitoring is not required in this operation. Buildinqs and Structures No buildings or structures associated with mining activities will be left in the proposed permit area following reclamation. Skins and Markers Permit notification signs will be placed and maintained at the entrance to the operation. The permit boundary will be identified where it is not already identified by fences or suitable markers. All signs and markers will be removed upon permit release. Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit E - 9 4 I 1-=500' TRACT S WCR 23.5 JOIF 011101.1.1.01. TRACT NI • BRANTNER DITCH TRACT K (NO MINING ON THIS TRACTI r • i BRIGHTON DITCH molar:al Y: , .44 4 GRAVEL MINING APPLICANT/OPERATOR: AGGREGATE INDUSTRIES-WCR INC. 1687 COLE BLVD. STE 300 GOLDEN. COLORADO 80401 SURFACE OWNERS AGGREGATE INDUSTRIES-WCR INC (TRACTS A. B. D. E. F. H. AND M) 1687 COLE BLVD. STE 300 GOLDEN COLORADO 80401 CITY OF AURORA (TRACTS C. G. K AND N) 15151 EAST ALAMEDA PARKWAY STE 3600 AURORA COLORADO 80012 ADAMS COUNTY (TRACTS L 8 0) ADAMS COUNTY GOVERNMENT CENTER 4430 SOUTH ADAMS COUNTY PARKWAY BRIGHTON. COLORADO 80601 YOSHI 8 SUZU. LLP (TRACTS P 8 0) PO BOX 508 BRIGHTON CO 80601 DOROTHY STRUCK (TRACT R) 507 COUNTY ROAD 23 5 BRIGHTON. COLORADO 80603 TOBY STRUCK (TRACT SI 527 COUNTY ROAD 23.5 BRIGHTON. COLORADO 80603 RECLAMATION AREA ACREAGE TABLE: RECLAMATION PLAN AREAS ACREAGE S MINING AREAS RECLAIMED TO WATER STORAGE 155.8 DISTURBED. BUT NOT MINED LAND RECLAIMED TO UPLAND MEADOW 75.3 DISTURBED. BUT NOT MINED LAND RECLAIMED TO AGRICULTURAL 4.5 UNDISTURBED AREAS OUTSIDE AFFECTED AREA 49.0 TUCSON STREET ROW 2.9 E 168 AVE ROW 0.1 TOTAL 287.6 TREE TABLE: Common Name Botanical Name Planting Size Quantity Rains Cottonwood Populus deltordes 10 gallon 36 American Plum Prunus americana 1 gallon 40 Choke Cherry Prunus vnglniana 1 gallon 40 Western Sand Cherry Prunus besser 1 gallon 40 Coyote willow Salrx ex'gua 1 gallon 40 SEED MIX AND SEED MIX NOTES. Upland Meadow Grass Seed Scientific Variety Name % of Mix Application Rate (PLSlacre) 1 7 &g Bluestem 4gerards Blue Grama Andropogor Kaw 15% Bouteloua Hachita Lovinpton 10% 0 3 __tweaks Greer Needlegr ass Nasaeila Lodom vindula 15% 15 Srdeoats Grama Bouteloua Vaughn, Butte curtrndtrla 10% 1 0 Switch grass Panrclun &adtws1 virgatum 20% 20 Weslern Wheatgrass Pasocipyrum Alribe, Barton smrthrr 30% 4 X Total 11.3 "Application rate is for drill seeding If seed is to be broadcast, the application rate will ne doubled Temporary Stockpile Vegetation Luna Pubescent Wheatgrass. 15 lb /ac Amur Intermediate Wheatgrass - 15 lb lac TUCSON SOUTH RESOURCE RECLAMATION PLAN MAPS TUCSON SOUTH RESOURCE SHEET INDEX SHEET NUMBER SHEET TITLE F-1 EXHIBIT F COVER SHEET 8 RECLAMATION NOTES F-2 EXHIBIT F WEST AREA RECLAMATION PLAN F-3 EXHIBIT F EAST AREA RECLAMATION PLAN F-4 WELD COUNTY CONVEYOR RECLAMATION PLAN CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES. LLC IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR INC AGGREGATE INDUSTRIES-WCR INC WILL KEEP THE DIVISION OF RECLAMATION MINING AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE GARY LINDEN 09/09/2021 DATE RECLAMATION NOTES 1. ALL FINAL RECLAIMED RESERVOIR SIDE SLOPES SHALL BE NO STEEPER THAN 3H: 1V. 6"-12' OF TOPSOIL WILL BE PLACED ON ALL SLOPES ABOVE THE ASSUMED HIGH-WATER LINE. RE -VEGETATION SHALL USE SEED MIXES LISTED IN TABLE BELOW, OR SIMILAR ALTERNATE MIX BASED ON COMMERCIAL AVAILABILITY AT THE TIME OF RECLAMATION. ALL SUBSTITUTIONS WILL DETERMINED IN CONSULTATION WITH QUALIFIED EXPERTS, AND APPROPRIATE TO THE REGION AND SOIL REGIME. 2 HIGH WATER LINE TS APPROXIMATE BASED ON AN ASSUMED I FREEBOARD. 3 AREAS TO BE RECLAIMED AS UPLAND WILL RECEIVE A MINIMUM OF 6"-12" TOPSOIL TO BETTER ESTABLISH GRASSES AND PLANTINGS. 4. PLANTINGS WILL BE INSTALLED WHEN MINING COMMENCES IN THE EAST CELL (PHASE 2). PLANTINGS WILL BE INSTALLED BY A RECLAMATION CONTRACTOR IN SEPT AND HAND WATERED UNTIL THE GROUND FREEZES. PLANTINGS WILL BE MONITORED IN THE SPRING TO MAKE SURE THEY ARE LEAFING OUT, REPLACED AS NECESSARY TO PROVIDE THE QUANTITIES AS ORIGINALLY INSTALLED AND WATERED AS NECESSARY THROUGH THE FIRST THREE GROWING SEASONS TO ESTABLISH. 5. AT RECLAMATION, AGGREGATE INDUSTRIES-WCR., INC. WILL ATTAIN MHFD APPROVAL OF PLANTING LOCATIONS WITHIN THE MHFD EASEMENT ALONG THE SOUTH PLATTE RIVER PRIOR TO INSTALLATION. 6. SEEDING WILL BE DONE DURING THE FIRST FAVORABLE SEEDING SEASON FOLLOWING TOPSOIL PLACEMENT. BASED ON RECOMMENDATION OF THE NRCS, IT IS ANTICIPATED THAT SEEDING WILL BE DONE BETWEEN OCT 15 AND MAY 1, UNLESS WEATHER CONDITIONS REQUIRE SEEDING OUTSIDE THESE MONTHS. 7. CERTIFIED WEED -FREE STRAW CRIMPED INTO TOPSOIL WILL BE USED WHERE GRASSES ARE TO BE ESTABLISHED ABOVE THE HIGH-WATER LINE ON RESERVOIR SIDE SLOPES, OR NEW SEEDS PLANTED INTO A COVER CROP Know what's belOW Call before you dig. 41t21) CIVIL RES''URCES 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 80401 21.4.213-7859(P1 KIMBERLY DENNIS TUCSON SOUTH RESOURCE RECLAMATION PLAN REVISIONS NO: DESCRIPTION DATE DRAWN BY: CAI CHECKED BY: GL DATE. AUGUST 21 mar F. AS NOTED AS NOTED JOB NO.: 297.001.09 DWG NAMFaure, ••a'. .e....ni .n., a. P..4 EXHIBIT F COVER SHEET & RECLAMATION NOTES F-1 lAggnphr, Fbn!tietWTxton So* Curry.* prouctOravirgeTch Ttch We Cerne yea -3 E1IHISIT EEAST AREA RECLAH&TION WAN* RA2021170ii OA \ 11 I I 1 I •I Itttt/ 1 IIIIIII I iii;.. , \ / „ -�__ ' \`\� �,1 I I ► I MATCHLINE SEE THIS SHEET \ �\ �• \ \ \. • I' I 1 \ 1 I (\ „...•-____:--_,:-_-,„_, - �- N - l 1 1 1 11 \ \ \ I I \ I I / �\ \ tt i `-- t 1 \ \ �._ ... \ • 1\ I \ \` \ \\\ 1 1 t l f I \\mo o \\ \ \ \N ` \�\ N. I 1 \ \ \ 1 \ \ 1 l \ 1 \ t \\ \\ \ \ \ ! \ \ N. \ I I 1 1 \ \ 1 l I I\\ 1 \ \` \ \III\ \\ \ • \\ \ 1 1 I 1,\ \ • 1 I 1 I I l\ • \ \\'A1 \ 1 \ \ \�`\ \ \ \'llli 1 i \ 1 t 1 I \ Ilt \ `\ `\\ 1\ �t ` \ _ \ \ 111 t . I I l l \ \ \ \ 1 1 \ \ l \ \ \ la r�, 5\\` 11 \ • • \ \ \ pl 1 \ I 1 \ \ 1 1 1 C. 1 \ \ \ \ N ` 1 \ 11\\\ `\ 1 \\ \ `. \/,A II \ 1111\ \\ �\ t \ \ \ \ \ \ \ \\\\ \\ \ \\ \`� (iv% 11\ 1 \ \ 1 / �� \ \` \ \ \ \ \ \ \ \ \ \ \\ \ t 1 \\\y 1 \\ t\� \ \ \ \ \ \ \ 1 • ••.lk• t \ _.`, 1`� . \\ \ \ \ ,` \ `\ \ \ \ \\\\ \ \\ ( rf 1 ��Z \ \1 \\ 1\ 1 \ \ \ `\ \ ` 1 r 1 \ \ l I \ I \ �; 1 \ N. ` \ \ 1 \ 1 \ �11 1 \ ..- \\\\Y\..\ \ ; ` .\\ \ �\ `\ \\ \1 \I \I I \ \ �s:—\ h//,0/1`\::\. . \\\ \\ ( 1, 1;\ i �l 1 1 / /// i// \ / r 4 1 / / \ r 1,1111: e o \\ / / r/ '-- \ t 1 !,//A/ o, \ ,/i ca I I I I \ 1//Pr /) y I I l / / // r I h 1 �f// \ i l' 1 1 1 I f /! / // 30' liODD CREEK UTILITY/ I)/ J I I I ,/ 1 1 I I ' ' \`` • ,\„ I ! / ( & WATERLINE EASEMENT l r \ \ \ \ / I t\ \` �\ �\ 1 / 1 7 / APPROX 75' WIDE PSCO / 1) / ROW EASEMENT 9// / / / /m/ I 2// I. I'1 / / / O PI / 1 / I / / I ) I I : / I� I / rcl 1 0/ / / ¢}(1 �/' / /l I, I T I / I / I/ / // I k91 r / / 11 i I / II I1JJI 11 I ilfr IC/ rIll,r (/ t,� ILi Hit( I l 11 II l f t BRIGHT.N DITCH EASEMENT AND/OR ROW 30' WEST AND 50' EAST OF DESCRIBED CENTERLINE / / i� Il Yi Ire / "v_lw In i� \ IIIJ//// , - ),:e j-) K% I /1/ \ 1 -4if, 'fh/1 if 1 I\ i TOP OF I RESERVOIR CITY OF AURORA WATERLINE EASEMENT / / " dI / I f///,!/-1; \/ CITY OF AURORA I CHALLENGER RESERVOIR l (CONTOURS NOT SHOWN) HDPAC" SLURRY WALL AREA ± 72.0 AC NHWL ELEV = 4954.7' NHWL AREA ± 69.8 AC /Ww-62 J o/ APPROXIMATE HIGH WATER JANE / 1 l MATCHLINE SEE SHT F-3 CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR. INC. AGGREGATE INDUSTRIES-WCR, INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING, AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE RESERVOIR ACCESS ROAD FROM SLURRY WALL 20'-30' MIN. SETBACK SLURRY WALL 4' MIN NORTH 0 100 200 (ate) 1"=200' � - TOPSOIL. SEED AND MULCH I I I I I I I I I $ I I i • I 1, NORMAL HIGH WATER ELEVATION ■ FINAL RECLAMATION 3H:1V SLOPE 0.5H:1V INTERIM TEMPORARY SLOPE ASSUMED BASE OF RESERVOIR AT BEDROCK DEWATERING TRENCH TYPICAL RESERVOIR CROSS-SECTION NTS NOTE: UNDERGROUND UTILITIES NOT SHOWN. MATCHLINE SEE F-4 / 1` I ( l 1 /11;1 t ( (III 1 1 r.____ tt\ 1 1 t I,{ \ 1 \`11 //II t \\ �` l \\11111 I\ / \ 114 \111 \ \ -_ - � J\j�1 gift \ \ • \\ i \ 1 I I t 1 11 l( \ \ I ) / / /I ) �1\ \ \ 1\ 1 1 / l ) \ 1 \ ! / /111 ) 1 1!-I-1 /I I 1 (mot (\l l \ ` / Ir I / 1 i\ \ I \1/ / ..?\ / !t / I I V / ! lJl 11 / 1 i f rl / i/ I 1 / / / an 36 18841 H AVENUE z � CITY OF AURORA RESERVOIR SE j.- rt CITY OF THORNTON RESERVOIR hJOf 7 H 'VA •4 PERMIT KEY MAP NI5 LEGEND: I I I I : x x x A w UE OE G OT ,InowiroNt *Pro NHWL RECLAIMED AS UPLAND MEADOW • CITY OF AURORA CHALLENGER RESERVOIR -•\ (CONTOURS NOT SHOWN) \ \ \� 1 \ 1 1 ))\k \1 1\ \\t\ \ \ \ \'?/ / 1 \ / 1 \ \J/ / / J\ ( \ \ V / /( I c\ I i 1 \IV 1 \ ■ // // ! t . l 1 I \ MATCHLINE SEE THIS SHEET VIEW 21 O 1 ii MINE PERMIT BOUNDARY TRACT BOUNDARY EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING EDGE OF WATER EXISTING 2' CONTOURS EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC LINE EXISTING OVERHEAD ELECTRIC LINE EXISTING GAS LINE EXISTING WATER LINE EXISTING TELEPHONE LINE PROPOSED SLURRY WALL PROPOSED 2' CONTOURS RESERVOIR ACCESS ROAD EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER RESERVOIR ACCESS ROAD NORMAL HIGH WATER LINE Mementoes below. Can before you dig. C:IVII RFS-WURCF - 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 W W W. CIVILRESOURCES.COM AGGREGATE INDUSTRIES 168/ LULt BLVD, STE 300 GOLDEN, COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS REVISIONS NO DESCRIPTION DATE DRAWN BY: CA! CHECKED BY: al_ DATE AUGUST 21 SCALE: AS NOTED AS NOTED JOB NO.: 297.001.09 DWG NAME 7.; aelr r an 0,zEr rtcJwzrlon P.M.rv1 EXHIBIT F WEST AREA RECLAMATION PLAN SHEET F-2 \ ,- / 1 l N N 20' TODD CREEK WATERLINE EASEMENT RECLAIMED AS UPLAND MEADOW 30' TODD CREEK UTILITY & WATERLINE EASEMENT r O' wW-a `1L r I j r / r� 638 s �ar .. - s o.ac ... ..r - a . - s • ---- ---rs ' - Ac.• AAYS& iIi iY 4-a-- ^ adialiall. ^J. ,.+u. 1.1.11 \r \ J 4956 TOP OF SLURRY RESERVOIR WALL 4957 el MATCHLINE SEE SHT F-2 19561 APPROXIMATE HIGH WATER LINE ..../ ., I 4 4959 4960 ii , TODD( / .• �` y `� / WATER STORAGE RESERVOIR B r ./ e �� / / /'�� i WATER { I / AREA 1 83 8 AC fe si, e T / NHWL ELEV . 4953.4' NHWL AREA i81.4AC l,.� , / 1 / �! ` II, I APPROXIMATE — — — 1 1 �u i�a�'� ti / 1 THE SOUTH F i Il _� J '— - 1 TOP OF CHAT 1 if - = r 49 1 e z * \ I t1 � ... — _ - — — J 2002 UDFGD / 'P I ��►• 41 I r ~� STUDY BY GA � \ 1 i I, li .11 1 _ t* Coi I \ / I j 1 �'1 . 1 AIJD MGKEE _-`` 1 \ �1- \A95 II :IQ d 111 / / 1 I I • ) I /: I L, \ J Irlj I i-\ \ - -',� .' MOR&AM SMITH - III / 1 lI / 1 / / rF 1JI / / I ;!t / / / / I I I. .1 / r 111 I /A / I _ / � L � -'= J . _ Th.'I \ \I I I MATURE AREA (CITY OF elzlvl�Tow �/ / ` // _ _ �� / i� / I f / /' I f /\ I I . c� ^� C / I k if' Jill / =� ~-' 1 I LI, •., � i I -7- )\ 19 i I ' WW -54 w ,r/•. II:(n ---__,/f7,: O I \ \ II /� �e4F \ j 2 �' I Q �P�O t7i / / / ,...4-44p / I // If TODD CREEK ` i FACILITY EASEMENT / / \ / i \ — \ • -I I' / / /1) \\��\ 1 ,- -V/ • ■n1a?J / / • c�z'AC 1,�: It v. \' 11 - 111 I- i REEK UTILITY & LINE EASEMENT / \ I '-7 - LOC-AT Ind OF >LATTE RIVER JNEL PER APRIL /1ASTER PLAM MP, DRESSER 1 C- 1 II 1. p In I a MT) 1"-700 LEGEND: I I i 1 i I! I! f• x x x W 4900 -71 .i poi.- J_--- 'ii' .:' Vii! -_l NHWL 0 UE OE MINE PERMIT BOUNDARY TRACT BOUNDARY EFFECTIVE FLOODWAY - EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING EDGE OF WATER EXISTING 2' CONTOURS EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC LINE EXISTING OVERHEAD ELECTRIC LINE G EXISTING GAS LINE EXISTING WATER LINE EXISTING TELEPHONE LINE PROPOSED SLURRY WALL PROPOSED 2' CONTOURS RESERVOIR ACCESS ROAD EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER RESERVOIR ACCESS ROAD NORMAL HIGH WATER LINE PROPOSED COTTONWOOD TREE (LOCATIONS SUBJECT TO CHANGE) PROPOSED SHRUB BEDS (LOCATIONS SUBJECT TO CHANGE) wets 17 36 1/em A ;3 Cag CITY OF AURORA RC SURVI`.IR SFC. CRY OF THORNrae RESERVOIR !TEST AREA PT - NORTH PERMIT KEY MAP<> NTS CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR, INC AGGREGATE INDUSTRIES-WCR, INC. WILL KEEP THE DIVISION OF RECLAMATION. MINING. AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE 09/09/2021 GARY LINDEN DATE Know what's below. Call before you dig. c I\-11 RI -5 1IR( F' 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 W W W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 300 GOLDEN, COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS LLI U D 0 ce F- 0 0 U E RECLA F- REVISIONS NO DESCRIPTION DATE DRAWN BY: CAI DATE. AUGUST 21 SCALE: AS NOTED CHECKED BY: GI. AS NOTED 108 NO.: 297.001.09 :) WG NAME;, ; rails u r ewsr Ait. pzcj,nT,a. Y.AN .,., AREA EXHIBIT RECLAMATION PLAN F EAST SHEE1 F-3 WCR2314 50 0' CONVEYOR EASEMENT o O MATCHLINE: SEE SHEET F-3 168TH AVENUE .: r, .. LEGEND: I I 1 1 I i I I I I I I x - 4900- - x x UE I I MINE PERMIT BOUNDARY TRACT BOUNDARY EFFECTIVE FLOODWAY EFFECTIVE ZONE AE EFFECTIVE ZONE X PRE-PROJECT/MINING CONDITIONS 100-YR FLOODPLAIN EXISTING EDGE OF WATER EXISTING 7 CONTOURS x EXISTING FENCE EXISTING EDGE OF ROAD EXISTING ELECTRIC LINE CERTIFICATION: THIS MAP WAS PREPARED BY CIVIL RESOURCES, LLC. IN COOPERATION WITH AGGREGATE INDUSTRIES-WCR, INC. AGGREGATE INDUSTRIES-WCR. INC WILL KEEP THE DIVISION OF RECLAMATION. MINING. AND SAFETY INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS AS NECESSARY THROUGHOUT THE LIFE OF THE MINE. 09/09/2021 GARY LINDEN DATE 100 zoo Iof ran I' =200' OE G MW -I 14 WW -1O EXISTING OVERHEAD ELECTRIC LINE EXISTING GAS LINE EXISTING WATER LINE EXISTING TELEPHONE LINE EXISTING ASPHALT ROAD EXISTING SOUTH PLATTE RIVER MONITORING WELL LOCATION WITH WELL ID # WATER WELL LOCATION WITH WELL ID # EXISTING TREES UTILITY POLE SECTION CORNER MONUMENT • CITY OF AURORA RESERVOIR I w CR TA 36 U I< v, N I6$+H AvERUE SEC. • 1� CITY OF THORNT0N RESERVOIR EAST AREA • •1 •II •I PERMIT KEY MAP NTS NORTH Know whars below. Call before you dig. CIVIL RES,DURCES 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, STE 30D GOLDEN, COLORADO 80401 214-213-7859(P) KIMBERLY DENNIS TUCSON SOUTH RESOURCE EXHIBIT F WELD RECLAMATION PLAN REVISIONS DRAWN BY: Is_ CHECKED BY: GL JOB NO.: 297.001.09 WELD COUNTY CONVEYOR RECLAMATION PLAN CH Ft 1 EXHIBIT G - WATER INFORMATION This information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.7 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: (1) If the operation is not expected to directly affect surface or groundwater systems, a statement of that expectation shall be submitted. This site is directly adjacent to the Brantner Ditch, Brighton Ditch, and the South Platte River. The Brantner Ditch, the Brighton Ditch, and South Platte River will not be disturbed because of the mining and reclamation activities on the site as the slurry wall and underdrain will be constructed ahead of mining. The underdrain is designed to preserve the hydrologic balance at the site as discussed later in this exhibit. (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. Please see Exhibit C Pre -Mining Maps for the location of all 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 (b) Identify all known aquifers The Tucson site is underlain by two relevant aquifers: the Upper Arapahoe Aquifer o described in: George VanSlyke, et. al. 1988, Geologic Structure, Sandstone/Siltstone Isolith, and Location of Non - Tributary Ground Water for the Arapahoe Aquifer, Denver Basin,Colorado. Denver Basin Atlas No.3, DBA-3. Colorado Division of Water Resources, Office of the State Engineer. • the South Platte River Alluvial Aquifer • described in: Tucson South Resource Ground Water Modeling Study on the Hydrologic Effects of Mining at Page 3, (Tetra Tech RMC 2004). (c) Submit a brief statement or plan showing how water from de -watering operations or from runoff from disturbed areas, piled material and operating surfaces will be managed to protect against pollution of either 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. The slurry wall for the West and East Areas will be installed prior to mining. All dewatering water will be monitored under the discharge permit (see below). Consequently, contaminants of concern inside the mine will not impact the surrounding Aggregate Industries - Tucson South Amendment - MLRB 112 Permit Application Exhibit G -1 alluvial aquifer. The interbedded siltstone and claystone of the Arapahoe Aquifer and associated very low vertical hydraulic conductivity isolates the Arapahoe aquifer from mine operations and potential releases. Monitoring wells have been installed around the West and East Areas; therefore, in the unlikely event of a release, possible impacts to groundwater can be monitored. Water from the initial dewatering operation and runoff from disturbed areas, piled material, and operating surfaces will be diverted to the settling ponds for detention and cleansing. Settling occurs in the trenches, and if necessary, settling ponds will be constructed at a point prior to discharge. Discharges will be directed to the South Platte River, at various points as designated within a State of Colorado, Division of Water Resources, Colorado Discharge Permit System (CDPS) permit. Monitoring of dewatering will be conducted in accordance with the CDPS discharge permit, which sets forth formal monitoring parameters including weekly visual monitoring for oil and grease. In accordance with the CDPS permit requirements, a Stormwater Management Plan (SWMP) will also be developed for this site. The SWMP identifies potential sources of pollution that may reasonably be expected to affect the quality of stormwater runoff from areas around the site and describes the implementation practices to be used to reduce the pollutants in stormwater discharges associated with the facility. Potential impacts to wells. The slurry walls and underdrain will be constructed prior to mining. The underdrain is designed to mitigate impacts to the hydrologic balance. No excavation will occur along the conveyor alignment other than road crossings under Tucson Street and Baseline. Impacts to neighboring wells are not anticipated. Review of permitted wells on August 4, 2021 indicated seven wells completed in the alluvial aquifer within approximately 600 feet of the mine limit. Other wells are screened in bedrock. The wells screened in the alluvium include wells owned by Aggregate Industries and others to monitor site water levels. Wells owned by others, screened in the alluvium, not used for monitoring purposes, and within approximately 600 feet of the mine limits are described below. In the unlikely case that that impacts to these wells due to mining occur, mitigation measures are described below. Gary A. and Delores R. Baker The Baker well (Permit #10310) is located south of the West Area about 500 feet from the mine limit. It is classified as stock watering only at 15 gpm. This well is upgradient of the site and is unlikely to be affected by the mine due to the presence of the slurry wall. San Martin Caballero, LLC The San Martin Caballero, LLC well (Permit #202569-A) is located approximately 500 feet south of the East Area. It is classified as domestic at 15 gpm. This well is upgradient of the site and is unlikely to be affected by the mine due to the presence of the slurry wall. Jason L. Murphy The Jason L. Murphy well (Permit #254461-A) is located approximately 500 feet south of the East Area. It is classified as domestic and stock at 15 gpm. This well is upgradient of the site and is unlikely to be affected by the mine due to the presence of the slurry wall. Aggregate Industries - Tucson South Amendment - MLRB 112 Permit Application Exhibit G - 2 Todd Creek Farms Metropolitan District 1 The Todd Creek Farms Metropolitan District 1(Permit #20989 -R -R) is located approximately 150 feet south of the East Area. It is classified as domestic and stock at 955 gpm. This well has a "Do not divert" order. Todd Creek Farms Metropolitan District 1 The Todd Creek Farms Metropolitan District 1(Permit #77271-F) is located approximately 150 feet east of the East Area. It is classified as Industrial Municipal. Todd Creek is aware of the future slurry wall and has an agreement with Al acknowledging the construction of the slurry wall and potential impacts to well yields. Todd Creek Farms Metropolitan District 1 The Todd Creek Farms Metropolitan District 1(Permit #77270-F) is located approximately 150 feet east of the East Area. It is classified as Industrial Municipal. Todd Creek is aware of the future slurry wall and has an agreement with Al acknowledging the construction of the slurry wall and potential impacts to well yields. Todd Creek Farms Metropolitan District 1 The Todd Creek Farms Metropolitan District 1(Permit #77323-F) is located approximately 600 feet northeast of the East Area. It is classified as Industrial Municipal at 500 gpm. This well is near the South Platte River and should have ample supply from the river. Donald D Stough The Donald D Stough Well (Permit # 201932) is located approximately 500 feet north of the East Area. It is classified as a domestic well. The well is downgradient of the slurry wall and may be affected by the shadow effect in which groundwater levels may be slightly lower than historic. If the well is affected, Al will adhere to the groundwater mitigation plan discussed below. (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. Water use at the site is governed by the current well permit (Permit No. 81342-F) and the associated Substitute Water Supply Plan (SWSP) for the site. Water use will be at its highest during the mining phase of the project. Mining at the site will intercept groundwater tributary to the South Platte River. Consumptive uses of groundwater at the site include evaporation from groundwater exposed to the atmosphere, water retained in material hauled off sites, and water used for dust control. Evaporative losses at the site are attributable to exposed groundwater in the dewatering trenches in the West and East Areas, in the settling ponds, and the dewatering trenches constructed following completion of the slurry walls surrounding the West and East Areas. The maximum exposed surface area during the life of the mine is equal to the combined total dewatering trenches surrounding the West and East Areas, and the settling ponds associated with the West and East Areas. The maximum exposed surface area during the life of the mine is estimated at 4 acres. Additional exposed groundwater from the old Tucson Pit (DRMS Permit No. M-1991-140) has been incorporated into the permit boundary of the Tucson South Pit. Therefore, the maximum Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit G - 3 exposed groundwater allowed pursuant to the approved well permit is approximately 10.5 acres. Evaporative losses were calculated as the difference between gross evaporation and effective precipitation. The NOAA Technical Report NWS 33, Evaporation Atlas for the Contiguous 48 United States (U.S. Department of Commerce) was used to determine the site's average annual gross evaporation of 43 inches. Precipitation was obtained from the Colorado Climate Center for the Brighton weather station. The gross annual precipitation for this site was estimated to be 14.55 inches. Effective precipitation was calculated as 70 percent of gross precipitation; thus, the average annual effective precipitation was determined to be 10.19 inches. The maximum total annual evaporative consumptive use at the site is estimated at 28.7 acre-feet. The maximum annual production at the site is estimated at 1.25 million tons. The anticipated maximum volume of water lost in the material hauled off -site is 60 acre-feet per year. The maximum annual operational water consumptive use due to the mining operation is estimated at 65 acre-feet per year. Maximum dust control requirements at the site are estimated at 5.0 acre-feet per year. The mine will be at the highest production during the months of May through August, and in combination with the weather, this period will require the greatest amount of dust control: The mine will be in production year-round and therefore dust control may be required during all months. The maximum annual consumptive use from mining at the site authorized by the well permit is 93.7 acre-feet per year as shown in the following table. Evaporation 28.7 ac -ft Moisture Retained in Product 60 ac -ft Dust Control 5 ac -ft Total 93.7 ac -ft It is not anticipated that additional water will be required for reclamation of the site. Once reclamation is completed, the City of Aurora will use decreed water rights to fill the ponds. (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 Aggregate Industries (Al) currently maintains a substitute water supply plan approved through the Office of the State Engineer for its mining operations along the South Platte River and its tributaries. Until the liners surrounding the West and East Areas of the project have been approved by the State Engineer, replacement water will be provided pursuant to Al's Combined Substitute Supply Plan (CoSSP). The plan includes this site. Sources of water currently in the CoSSP include historic consumptive use credits from several area irrigation ditches, water from the City of Westminster, and other water currently available to Al under existing lease agreements. Under the CoSSP, replacements are made to the South Platte River at various locations including the Metro Wastewater Treatment Plant outfall structure located upstream of the property. Transit loss associated with the replacement water sources is assumed to be 0.5 percent per mile. The following is a list of some of the sources of water currently Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit G - 4 approved by the State Engineer for use in Al's CoSSP. 1. 1998 Effluent Lease (1998 Lease) with the City of Westminster. The 1998 Lease has been used as a replacement source for individual SSP's that have been approved in the past. This is a perpetual lease that provides 0.28 cfs of fully consumable water every day of each year and an additional 0.17 cfs of fully consumable water every day from October 15th to June 30th during each year at the outfall of the Metro Wastewater Treatment Plant. The lease provides 294.79 acre-feet annually. A small amount of this water is dedicated to the decreed augmentation plan in Case No. 07CW198; the remainder is available for use in the CoSSP. 2. Historic Use of 62 shares of the Fulton Ditch. This has an estimated average annual consumptive use of 116.05 acre-feet. The technique of quantifying historic use of 29 shares of Fulton Ditch water was approved for use on November 12, 1999, for the SSP and submitted to the State Engineers Office on March 24, 1999, for the Fulton Lakes Pit. The decreed historic consumptive use is 1.75 acre-feet/ share. The consumptive use credit from the Fulton Ditch shares suffices to adequately replace out - of -priority depletions and return flow obligations in the months of June through August. 3. Centennial Effluent Lease. Al has an agreement with Centennial Water and Sanitation District ("Centennial") that conveyed water rights in exchange for a lease of augmentation water. In a December 1996 agreement, Al conveyed its ownership of shares in the Nevada Ditch Company to Centennial in exchange for 30 acre-feet of consumable effluent. No explicit date of termination is set in the agreement. The rate of delivery for the 30 acre-feet cannot exceed 5 cfs. This rate allows Al to claim the total amount in a single month. Centennial agreed to deliver the water, at its discretion, at one of the following points: the mouth of Little Dry Creek; Plum Creek at the point where water from Mclellan Reservoir can be discharged by pipeline into the South Platte River; Centennial's Marcy Gulch Wastewater Treatment Plant; or by not requiring augmentation water from Al sources located above the Titan Road Gage located on Plum Creek. The mouth of Little Dry Creek was used for calculating transit loss for the Centennial water. The mouth is in Section 33, T 4S, R68W, approximately 2,350 feet from the South section line and 1,650 feet from the East section line. 4. Historic Use of 1.038 Shares in the Brighton Ditch. Al currently leases these shares from the City of Westminster. Collectively, the shares provide approximately 170.88 acre-feet per year of consumptive use credit based on dry -year yields. 5. City of Thornton Lease. In exchange for three shares in the Colorado Agricultural Ditch Company, the City of Thornton has provided Al a perpetual lease of fully consumable water from the Metro Wastewater Treatment Plant to be delivered at a rate of 0.035 cfs daily from November 1st through March 31st. This totals 10.53 acre-feet for the calendar year. (5) 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 Health, if necessary. Al will apply for an NPDES permit prior to mining or dewatering the site. Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit G - 5 Potential Mining Impacts Tucson South Resource Groundwater Modeling Study on the Hydrogeologic Effects of Mining, prepared by Tetra Tech RMC dated August 2004 was submitted as a referral response to DRMS August 3, 2004. The study is on record with the original application and attached herein for reference. A groundwater monitoring and mitigation plan was submitted to the Division as part of an adequacy response to Mr. Larry Oehler dated November 22, 2004 (in pages 17 -19). The plan was reviewed and approved by the Division as part of the original permit for the site. A copy of the approved Groundwater Monitoring and Mitigation Plan is described below. The hydrogeologic conditions have changed since the 2004 report. However, many of the changed conditions were considered in the 2004 model. The Challenger Pit north of the West Area has been reclaimed as a lined storage reservoir. The triangle -shaped parcel north of the East Area has been backfilled with fines. The Greenhouses in the northeast corner of the West Area and the small property located entirely within the East Area are now owned by the City of Aurora and will be mined and reclaimed as part of the water storage reservoir. The 2004 report presented eight hydrogeologic scenarios that address the various conditions and associated groundwater impacts of the for the life of Tucson South Mine. Scenario 6 described on pages 9 and 10, illustrated on Figures 9 and 10, represent the current conditions with two exceptions: 1. The wells at the Greenhouse property, now owned by Aurora, will be removed during mining, and 2. A previously permitted area located south of Highway 7 will not be mined (in the groundwater model this area was assumed to be wet mined. The net results are likely minimal). The changes due to the Aurora property and the absence of mining of the South cell do not have a material impact on the model simulations. The model indicates that after installation of the slurry wall, groundwater will mound up to approximately six feet along the western and southern edges of the West Area. Given the rise in groundwater level west of the slurry wall, the mining operations will not increase seepage from the Brighton or Brantner ditches. Similarly, the model indicates that there will be minimal rise in groundwater level south of the East Area. This is due to the proximity of the South Platte River. As mentioned above, Todd Creek Farms Metropolitan District #1 (Todd Creek) operates several water supply wells between the South Platte River and the slurry wall of the East Mine Area. Todd Creek is aware of the future slurry wall and has an agreement with Al acknowledging the construction of the slurry wall and potential impacts to well yields. Groundwater flows from south-southwest to north-northeast, roughly parallel to the South Platte River. Consequently, there will be very little if any "shadow effect" (decline in groundwater level) in the Morgan Smith Natural Area. The proximity of the River also minimizes the impacts of groundwater levels in the Morgan Smith Natural Area. The modeling (Scenario 6, Figures 9 and 10) indicates there will be a shadow effect north of the mine in the narrow strip of unmined alluvial aquifer beneath Tucson Street. Aggregate Industries — Tucson South Amendment — MLRB 112 Permit Application Exhibit G - 6 The drawdown estimated by the model assumes the wells were pumping at the Aurora property Greenhouse and one domestic well north of the mine. Given that the greenhouse wells will not be pumping, the drawdown will likely be less than the of six to eight feet estimated by the model. There is one remaining domestic alluvial water well in this strip of land. Potential impacts to the well will be addressed by the Ground Water Mitigation Plan. Groundwater Mitigation Plan Groundwater monitoring and evaluation of potential mining or reclamation impacts shall be conducted as part of the Groundwater Monitoring and Mitigation Plan. The Monitoring Plan was reviewed and approved by the Division with the original permit and will be used during mining and reclamation activities. Historic and current water level measurements in the monitoring wells included as part of this exhibit. The Monitoring Plan is outlined below. It is possible that the well north of the site may be impacted by shadowing effects of the slurry wall. If the wells fail to perform at historic rates, Al will make investigations into the cause. If the cause can be traced to the mine and slurry wall, Al will make efforts to improve the wells either by several alternatives including: discharging water near the well, developing the well to remove scales and plugs, deepening the well, and/or constructing cisterns and delivering potable water to the cisterns for the duration of the impacts. As indicated above Al may improve the existing wells rather than continue to haul water for an extended period. In any event Al will provide potable water to the well owner. Al is committed to installing an underdrain system to minimize disturbances to the prevailing hydrologic balance of the ground water regime near the mine. Groundwater modeling indicated mounding up to approximately six feet will likely occur along the west and south west margins of the West Mine Area. The design plans are attached to this exhibit. The drain system will consist of two sections, South Side Drain and a West drain that conveys water along the north side of the West Mine Area. Each drain has a "receiving" section and a "discharging" section. In the "receiving' sections the drain will be installed at approximately the pre -mining ground water level. As the mound builds it will flow into the drainpipe. In non -mounding areas the "discharging "sections the drainpipe will be at or approximately one foot above the premining ground water levels. In the areas of the ground water mound the ground water will flow into the drain then flow down gradient through the drainpipe and discharge back to the ground water. The entire length of the drainpipe will be perforated. This design concept has been utilized at the Aurora Challenger Pit just north of the West Mine Area. To establish a baseline, Al installed 17 monitoring wells at the mining site in late 2003. The frequency of water level monitoring was approximately monthly from December 2003 to July 2005. After July 2005, monitoring continued quarterly through 2017. The monitoring frequency increased to monthly in January 2018. Monitoring in the wells will continue on a monthly basis for the life of the mine and for one year after mining ends. (Note: MW -11 was removed during Todd Creek Metropolitan District's construction in 2017 and MW -2 south of the mine can no longer be found). MW -2 was I replaced with a Aggregate Industries - Tucson South Amendment - MLRB 112 Permit Application Exhibit G - 7 new well in roughly the same location in 2018. MW -11 will not be reinstalled as the area of the well is adjacent to the river and Todd Creek has monitoring wells that they monitor as part of their alluvial wellfield. For the wells around the East and West Mine areas, monthly water monitoring would continue to be appropriate. If sufficient data is collected during the life of the mining operation, and a demonstration can be made that impacts to the groundwater system have been minimized, Al can Apply to the Division would consider approval of a Technical Revision to revise the water level monitoring frequency at a later date. The Monitoring Plan will now consist of 16 monitoring wells. Monitoring data will be used to identify potential changes in alluvial groundwater flow or elevation associated with mining and reclamation activities. Baseline data collected from the monitoring program will provide a range of relative water levels associated with pre -mining groundwater conditions. Experience at other sand and gravel mine sites in similar geologic settings shows that groundwater levels tend to fluctuate between two to four feet each year; levels are highest in the summer and lowest in the winter and early spring. Al will meet with the nearby well owners and enter into a monitoring and mitigation agreement with them. The details of the Mitigation Plan are provided below. • If, during mining, the relative seasonal groundwater elevation at any of the domestic wells or monitoring wells differs from the baseline conditions by more than two feet, and the condition was not observed during baseline monitoring, or if Aggregate Industries receives a complaint from any well owner within 600 feet from the site boundary, then Aggregate Industries will notify the DRMS and then evaluate the cause and take action within 30 days. • After the DRMS has been notified. Aggregate Industries will review the available data and information and submit a report to the DRMS within 30 days. The evaluation will include discussions with any well owner who has contacted Aggregate Industries regarding a concern, and a review of baseline data from the well and vicinity to evaluate potential changes due to seasonal variations, climate, mining, or other factors. The report will identify the extent of potential or actual impacts associated with the groundwater changes. If the extent of groundwater changes due to mining or reclamation activities is determined to be a significant factor creating potential or actual adverse impacts, the mining -associated impacts will be addressed to the satisfaction of the DRMS. Aggregate Industries will begin to implement one or more mitigation measures. • Mitigation measures may include, but are not limited to: • Cleaning a well to improve efficiency. • Providing an alternative source of water or purchasing additional water to support historic well use water quantity and quality. If needed, water quality parameters will be checked in affected wells to ensure alternative sources support the historic use. • Modifying a well to operate under lower groundwater conditions. This could include deepening existing wells or lowering the pumps. All work would be done at Aggregate Industries' expense except for replacing equipment that was non- functional prior to mining. • If existing wells cannot be retrofitted or repaired, replacing the impacted well with a new replacement well. Aggregate Industries - Tucson South Amendment - MLRB 112 Permit Application Exhibit G - 8 • Providing flood irrigation to address concerns over impacts to sub -irrigated lands adjacent to the site. • Al agrees to provide the water level data collected from monitoring well sampling to the DRMS with the annual report for the site. • If a groundwater mitigation action is required, Aggregate Industries will notify the DRMS of the condition, action taken and result. A complete well inventory "Well Inventory, Tucson South/Haake, Aggregate Site near Brighton Colorado dated March 13, 2004" was submitted to the Division with Exhibit G of the original application for this site. The information is on record at the Division. Since that time Aggregate Industries has obtained the required well permit for this property. Aggregate Industries, through the SEQ well permit process, gave notice to well owners within 600 feet of the mining boundary. The potentially impacted well owners entered into agreements with Aggregate Industries for protection for the senior vested water rights. Many of these wells were near a previously permitted unlined cell south of Highway 7. This unlined cell was removed from the permit with a Technical Revision. Impacts to these wells is now considered negligible due to the construction of the slurry wall prior to mining. Potential Reclamation Impacts Impacts due to mine dewatering are not anticipated due to the presence of the slurry wall constructed prior to mining of the East and West Areas. Once mining and reclamation are complete and dewatering pumps are turned off, potential impacts to surrounding wells from mine dewatering will cease. Reclamation Impact Mitigation Plan Although impacts and damages are not anticipated, it is the intent of the operator and property owners to operate responsibly and to mitigate damage to wells or structures that is directly attributable to the mining and reclamation of the Tucson South Resource site. If mine or slurry wall reclamation creates injury to surrounding properties, the applicant will take all necessary actions to remedy the injury. The approved well permit addresses potential impacts to wells within 600 feet of the Permit Boundary. Additionally, if it is determined that mine reclamation creates mounding impacts to surrounding structures or water resources, the applicant will take appropriate corrective action. Impacts would trigger mitigation measures that may include, but are not limited to: • Installing surface or underground drainage systems to transport groundwater from mounding areas to shadowing areas. • Diverting surface water flows to recharge ponds in shadowing areas. Water Quality Mining and reclamation operations shall comply with the Colorado Department of Public Health and Environment National Pollution Discharge Elimination System (NPDES) regulations. A Colorado Discharge Permitting System (CDPS) permit for stormwater management and discharge flows to protect surface water quality on and off the Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit G - 9 proposed permit area from mining and reclamation activities will be obtained. The permit includes the continued updating and implementation of a site Stormwater Management Plan designed to prevent the contact and transport of potential contaminants to surface waters by stormwater flows. The depth to groundwater fluctuates by a couple of feet depending on the season, but averages about 10 feet below ground surface. Due to the absence of large quantities of potential pollutants on site (no on -site processing or concrete or asphalt production), the mining and reclamation operations are not likely to affect groundwater quality on or off the site. As stated above, mining and reclamation activities shall operate under a CDPS permit and Stormwater Management Plan. The plan provides for regular inspections of potential contaminant areas such as mobile equipment and fuel or lubricant storage locations. Inspections and best management practices are incorporated into the plan to protect both surface and groundwater quality. Aggregate Industries - Tucson South Amendment — MLRB 112 Permit Application Exhibit G -10 Tucson South Water Level Monitoring Tucson South Monitoring Well Data Monthly Depth to Water from - Date MW -1 MW -2 MW -3 MW -4 MW -5 MW -6 MW -7 MW -8 MW -9 MW -10 W ; 12/9/2003 15.92 10.15 12.21 12.52 13.92 12.28 11.28 11.30 12.03 12.26 16.27 1/31/2019 2/4/2004 15.20 10.40 12.50 12.80 14.30 12.60 11.50 11.30 12.00 12.40 13.50 3/10/2004 15.90 10.00 11.80 12.40 14.00 12.10 10.90 10.70 11.25 11.20 12.70 4/7/2004 15.00 9.35 11.50 12.15 13.12 12.00 11.00 11.00 10.85 11.20 12.65 5/6/2004 16.00 11.85 11.90 13.00 11.55 10.70 11.25 10.30 11.30 12.40 6/8/2004 14.70 8.85 11.30 11.70 12.60 11.40 10.80 10.90 10.00 10.30 11.75 7/12/2004 12.60 11.00 10.80 11.00 10.60 10.00 10.50 9.10 10.40 12.25 8/10/2004 13.90 8.20 11.20 10.80 11.70 10.50 10.00 10.50 9.40 9.30 10.80 9/7/2004 14.10 8.60 11.40 10.80 11.80 10.50 10.00 10.60 9.40 10.30 11.90 10/11/2004 14.70 8.75 11.40 11.00 12.00 10.60 10.00 10.80 9.30 10.60 11.30 11/2/2004 14.20 8.70 11.00 10.70 11.60 10.40 9.60 10.00 8.90 9.70 11.10 12/1/2004 15.40 9.30 11.80 11.50 12.50 11.00 10.30 10.80 9.40 11.80 11.80 1/4/2005 15.40 9.80 12.00 11.60 13.00 11.30 10.40 11.10 9.60 10.30 11.70 2/3/2005 15.50 10.10 12.20 11.80 13.30 11.60 10.70 11.10 9.80 10.50 11.70 3/4/2005 15.50 9.90 11.90 11.80 13.40 11.50 10.60 10.80 10.00 10.40 12.00 4/4/2005 14.40 9.00 11.90 11.70 12.30 11.50 10.90 11.50 11.70 12.60 13.20 5/2/2005 13.80 8.10 10.40 10.90 11.80 10.80 9.70 8.40 9.80 10.30 10.50 6/7/2005 13.40 7.70 9.80 10.30 11.60 10.00 9.00 9.00 8.90 9.30 10.50 7/5/2005 13.80 8.00 11.00 10.50 11.70 10.20 9.70 10.40 9.70 10.40 12.00 8/5/2005 13.80 8.60 9.40 11.20 11.90 10.80 10.20 8.90 10.00 9.20 9.80 9/1/2005 14.10 8.40 11.40 11.20 12.00 11.00 10.30 10.80 10.40 11.20 11.80 10/4/2005 14.30 8.80 11.40 11.60 12.10 11.30 10.70 11.10 10.50 11.40 12.00 11/8/2005 15.00 9.60 12.00 11.80 12.80 11.50 10.60 11.40 10.10 11.00 11.80 12/2/2005 15.40 10.00 12.60 12.00 13.30 11.80 11.00 11.40 10.20 11.10 11.80 1/4/2006 16.10 12.60 12.00 13.90 12.20 11.20 11.40 10.30 11.00 12.50 2/24/2006 16.12 10.41 12.42 12.54 14.09 12.29 11.30 11.20 11.38 11.13 13.20 3/24/2006 16.10 13.40 12.50 14.10 12.30 11.20 11.20 11.80 12.50 13.50 4/14/2006 15.50 12.50 12.60 13.50 12.40 11.50 11.60 12.00 12.00 14.70 5/23/2006 14.90 12.40 12.30 13.00 14.00 11.00 10.50 14.30 11.30 12.60 6/16/2006 14.10 11.10 11.60 12.30 11.40 10.40 10.50 11.10 11.30 12.80 7/14/2006 13.85 10.98 11.04 11.93 10.80 9.91 10.31 11.02 11.39 12.67 8/11/2006 15.29 11.45 11.47 12.13 11.18 10.47 11.69 12.25 11.82 13.06 9/18/2006 14.18 11.90 11.65 12.01 11.30 10.91 11.51 12.06 11.84 13.48 10/19/2006 14.84 12.04 11.87 12.57 11.52 10.93 11.17 11.86 11.57 13.55 11/17/2006 15.04 12.08 11.84 12.75 11.74 10.82 11.03 11.93 11.98 13.27 12/19/2006 15.61 12.12 12.25 13.42 11.98 11.05 10.98 12.72 11.87 13.19 1/1/2007 2/1/2007 12.02 11.84 12.75 11.74 10.82 10.83 11.93 11.83 13.19 3/1/2007 4/9/2007 14.40 11.00 11.20 12.70 11.20 10.40 10.10 11.80 11.00 12.60 5/7/2007 13.00 8.30 10.00 11.50 10.00 8.70 7.70 10.20 10.10 9.60 6/5/2007 12.20 8.50 9.50 10.50 9.30 8.40 8.40 10.50 9.90 10.40 7/3/2007 10.30 10.80 10.00 8.40 9.60 11.00 10.70 11.80 8/7/2007 14.00 11.20 10.10 11.20 9.70 8.60 9.20 10.50 10.10 10.90 9/4/2007 13.50 11.30 11.20 11.40 10.80 10.80 10.80 10.70 10.40 12.30 10/3/2007 14.50 11.80 11.70 12.30 11.10 10.50 11.80 10.40 10.10 12.80 11/7/2007 14.80 11.50 11.30 12.40 11.00 10.10 10.50 10.80 10.70 12.00 12/7/2007 15.30 12.00 11.30 12.80 11.20 10.50 11.10 10.00 10.90 12.80 1/4/2008 15.80 12.30 12.30 13.50 12.00 11.10 11.40 11.10 11.30 13.20 2/4/2008 15.00 12.00 12.20 13.50 12.00 11.00 11.00 12.50 12.00 12.80 3/13/2008 15.40 11.80 11.80 13.00 11.40 10.50 10.80 9.80 10.40 12.40 4/7/2008 14.80 11.50 11.80 12.80 11.40 10.80 11.40 10.40 10.80 12.80 5/19/2008 14.50 11.50 11.20 12.40 10.80 10.20 10.80 9.40 10.50 12.40 6/9/2008 14.20 11.00 10.10 12.00 10.60 10.00 10.40 9.20 10.00 12.00 7/1/2008 14.30 11.10 10.50 12.40 10.80 9.80 10.20 9.60 10.70 11.80 8/11/2008 13.80 11.20 10.90 11.70 10.30 10.00 10.60 9.80 10.70 12.20 9/2/2008 14.30 11.70 11.10 12.00 10.80 10.40 11.00 10.00 11.30 12.10 10/10/2008 14.60 12.00 11.60 12.50 11.40 10.80 11.40 10.40 11.70 12.50 11/10/2008 14.90 12.00 11.80 13.00 11.50 10.80 11.00 10.50 12.30 11.00 12/1/2008 1/14/2009 15.10 12.00 12.10 14.40 11.90 11.00 11.20 10.30 10.40 12.60 2/10/2009 11.80 12.60 17.30 12.00 11.10 11.30 10.50 10.80 11.50 3/4/2009 12.10 12.80 21.20 12.60 11.20 11.10 10.60 10.80 12.30 4/1/2009 16.60 �� 11.80 12.60 15.70 12.50 11.40 11.50 12.20 11.70 13.40 5/15/2009 16.00 ` '' 10.90 12.00 14.90 11.80 10.60 11.00 11.00 10.20 11.80 6/26/2009 16.60 11.80 12.60 15.70 12.50 11.40 11.50 10.90 9.80 10.90 7/24/2009 16.40 11.50 12.00 14.90 12.00 11.80 11.30 10.40 10.00 10.20 8/13/2009 14.50 :: 11.90 12.00 12.10 11.40 11.20 11.40 12.50 11.70 12.60 9/16/2009 15.00m `" 12.40 12.60 12.30 11.40 11.10 11.50 12.70 12.30 12.90 10/16/2009 15.30 ``{ 12.90 12.80 12.10 11.50 11.70 12.00 13.00 12.60 13.20 11/12/2009 15.60 12.00 12.30 13.50 11.50 11.10 11.30 12.40 11.70 12.80 12/14/2009 15.90 � w 12.70 12.90 13.70 12.00 12.60 11.70 12.60 12.10 13.00 1/19/2010 16.10x.' 13.00 13.10 12.50 12.50 12.80 12.00 13.00 12.70 12.40 2/22/2010 17.10 13.80 14.00 14.30 12.80 13.30 12.20 13.10 13.00 12.90 3/29/2010 16.60 13.10 13.70 14.00 12.00 13.10 11.70 13.00 12.10 12.30 4/16/2010 16.00 12.70 13.40 13.50 12.20 13.00 11.10 12.80 12.60 12.20 5/21/2010 14.30 10.80 12.20 12.30 11.10 12.00 10.70 11.60 11.10 11.60 6/21/2010 13.80 " 10.60 11.80 12.10 11.30 11.60 10.00 10.90 10.90 11.30 7/29/2010 14.40 11.40 11.60 12.20 11.20 11.60 10.90 11.40 10.50 12.70 8/19/2010 14.60 f 12.00 11.50 13.00 11.80 11.70 11.40 11.90 11.20 13.10 9/21/2010 14.90 , �`w� 12.30 11.90 13.90 12.00 12.60 11.90 12.00 11.00 13.60 10/18/2010 15.10 12.90 11.80 14.00 12.70 12.90 12.40 12.80 11.90 14.00 11/19/2010 16.00 12.00 12.40 13.90 12.40 11.80 11.60 11.70 11.00 13.00 12/20/2010 16.30 '' � 12.40 12.00 14.40 12.90 11.00 10.90 12.00 11.30 12.90 1/28/2011 16.00 " 16.00 11.60 13.80 12.50 11.20 11.00 12.30 10.90 12.00 2/23/2011 16.40 12.80 12.00 13.40 12.00 11.00 12.20 11.00 11.40 13.20 3/23/2011 16.0O 12.10 12.60 13.60 12.50 11.20 11.60 11.70 12.00 13.60 4/27/2011 15.10 11.80 12.20 13.10 12.20 11.00 11.30 11.50 12.30 13.80 5/23/2011 15.00 _ 11.20 12.00 12.90 11.80 11.60 11.10 11.00 12.00 13.10 6/24/2011 14.70 10.80 12.30 13.00 12.00 11.80 11.90 10.60 11.80 12.70 7/29/2011 14.00 10.60 12.80 13.20 12.60 12.00 12.20 10.90 12.00 13.00 8/29/2011 13.60 x 10.40 13.00 13.70 13.00 12.40 12.60 11.20 12.80 13.30 9/28/2011 13.80 10.90 13.80 14.00 13.50 12.60 12.80 12.00 13.00 13.60 10/25/2011 14.00 11.00 14.10 14.30 13.60 12.80 12.70 12.60 13.10 13.40 11/22/2011 14.90 4 11.70 13.90 13.50 12.80 11.90 11.80 11.70 12.90 12.80 12/14/2011 15.00 11.20 13.40 13.10 12.10 11.40 11.60 11.00 12.00 12.40 1/30/2012 15.10 12.30 12.30 12.70 11.40 11.70 11.80 10.60 11.40 13.50 2/27/2012 15.50 11.80 11.50 12.80 11.60 10.80 11.00 9.80 10.70 13.10 3/27/2012 15.90 12.20 12.00 12.90 11.90 11.00 11.60 9.90 11.20 13.60 4/6/2012 15.00 11.80 11.50 12.60 11.30 10.90 11.00 9.80 10.70 13.40 5/18/2012 14.40 11.90 11.50 12.30 11.10 10.50 10.90 10.40 11.40 13.50 6/11/2012 14.60 12.20 11.90 12.70 11.40 10.90 11.20 10.50 11.70 13.80 7/12/2012 14,30 4r 12.00 11.50 12.20 11.50 11.00 11.30 10.20 10.80 13.00 8/21/2012 14.80 4 12.30 11.90 12.60 12.00 11.70 11.80 10.60 11.00 13.40 9/25/2012 15.00 xro 12.00 11.80 12.70 11.30 10.80 11.30 10.50 11.80 13.60 10/29/2012 15.30 n;, 11.80 12.00 12.90 11.60 11.00 11.20 10.90 11.50 13.90 11/19/2012 15.60 ya 12.00 12.50 13.30 12.00 11.90 11.70 11.00 11.50 13.90 12/10/2012 15.90 12.20 13.00 13.40 12.80 12.00 12.10 11.40 11.80 14.00 1/18/2013 15.80 F 12.40 12.30 12.00 12.00 13.40 13.30 11.80 11.70 11.00 10.80 11.40 11.10 10.20 10.10 10.90 10.80 13.50 13.10 2/22/2013 16.00 �� tE 3/25/2013 16.50 a 12.20 11.70 13.20 11.50 10.60 10.90 10.20 10.80 13.20 4/29/2013 16.30 r 12.00 11.80 13.30 11.30 10.40 10.80 10.20 10.70 13.40 5/22/2013 15.10 11.40 11.30 12.50 10.90 9.70 10.40 10.00 10.80 12.80 6/18/2013 14.40 11.50 11.40 11.90 10.70 10.00 10.50 9.80 11.10 12.90 7/22/2013 14.20 11.60 11.70 11.70 10.60 10.40 10.70 9.90 11.50 13.30 8/22/2013 14.00 11.70 11.40 11.50 10.80 10.30 10.90 9.60 11.40 13.10 9/12/2013 10/24/2013 14.10 ' ` 11.50 10.70 11.70 10.50 9.80 10.40 9.40 9.90 12.60 11/25/2013 14.40 i Y 11.60 11.00 12.10 10.90 10.00 10.50 9.50 10.10 12.70 12/10/2013 14.80 t 12.30 11.50 12.40 10.80 10.60 11.20 9.80 10.60 13.30 1/30/2014 15.40 r 12.50 12.40 13.10 12.00 11.80 13.50 13.40 11.80 12.40 2/26/2014 15.80 12.30 12.20 13.20 11.80 11.50 11.60 10.90 11.90 13.50 3/25/2014 15.40 12.40 11.80 12.90 11.50 10.80 11.20 10.20 11.50 13.60 4/28/2014 15.60 4 r 12.30 12.00 13.10 11.80 10.60 11.80 10.70 11.80 13.20 5/29/2014 14.20 d Y 11.00 11.00 12.10 10.60 9.70 9.60 9.10 9.90 11.80 6/30/2014 13.40 10.80 10.50 10.90 9.80 9.60 10.10 9.40 10.60 12.30 7/23/2014 13.60 11.00 10.40 11.00 10.10 9.50 10.30 9.80 10.90 12.40 8/26/2014 13.90 n w 11.70 11.10 11.40 10.50 10.30 11.00 9.60 11.00 12.90 9/23/2014 14.00 "` 12.00 11.60 11.50 10.60 10.70 11.10 9.80 11.20 13.00 10/28/2014 14.20 11.60 11.20 12.00 10.80 10.30 10.80 9.70 10.90 13.50 11/21/2014 14.90 11.90 11.50 12.40 11.30 10.50 11.20 9.90 11.40 13.70 12/15/2014 15.10 12.20 11.70 12.70 11.00 10.70 11.40 10.00 11.00 13.90 1/26/2015 15.40 12.60 12.00 12.80 11.40 10.60 11.50 10.60 11.30 14.00 2/20/2015 15.90 12.40 12.20 13.10 11.50 10.90 11.30 10.50 11.50 13.80 3/25/2015 15.50 12.10 12.00 13.30 11.40 10.70 10.90 9.90 11.20 13.50 4/23/2015 15.20 12.00 11.80 13.00 11.00 10.40 10.60 9.80 11.00 13.00 5/28/2015 11.80 6.80 8.50 9.90 8.40 7,10 7.40 6.90 7.70 8.00 6/30/2015 11.20 7.40 7.80 6.10 7.60 6.80 7.00 6.40 7.30 8.40 7/30/2015 12.00, r; 10.50 9.00 9.40 8.60 8.40 10.40 7.80 10.20 12.40 8/28/2015 12.90 10.80 10.10 10.50 9.60 9.70 10.50 9.00 11.20 13.00 9/30/2015 14.00 11.40 10.80 11.40 10.40 10.30 10.70 9.60 11.00 12.80 10/30/2015 13.80 11.00 11.10 11.70 10.50 9.80 10.40 9.40 10.90 12.60 11/16/2015 13.90 11.20 11.00 12.00 10.60 9.70 10.30 9.50 10.80 12.80 12/7/2015 14.00 11.40 10.90 12.30 10.80 9.80 10.20 9.90 11.00 12.90 1/29/2016 14.40 11.90 11.00 12.20 10.90 10.00 10.60 9.80 11.40 13.00 2/29/2016 15.20 11.80 11.50 12.50 11.00 10.40 10.90 9.70 11.00 13.40 3/31/2016 15.70 12.00 11.40 12.90 11.20 10.60 10.80 10.00 11.40 13.20 4/26/2016 15.50 . 11.80 11.00 12.60 11.00 10.70 11.00 10.40 11.60 13.00 5/27/2016 14.20 10.60 9.80 11.00 9.70 9.80 10.00 8.90 9.90 11.80 6/7/2016 12.90 10.40 9.70 10.30 9.30 8.90 9.90 8.30 9.80 12.20 7/21/2016 13.00 10.80 9.80 10.00 9.70 9.00 10.10 8.60 9.60 12.80 8/31/2016 13.90 11.40 11.00 11.40 10.60 10.10 10.40 9.40 10.20 12.70 9/30/2016 14.60 12.20 11.80 12.40 11.30 10.90 11.70 10.20 11.50 14.10 10/20/2016 14.90 12.40 11.70 12.60 11.40 11.00 11.80 10.50 11.80 14.00 11/29/2016 15.00 12.60 12.00 12.90 11.50 11.20 11.60 10.80 11.60 13.90 12/7/2016 15.20 12.50 12.20 12.80 11.40 11.40 11.60 10.90 11.50 14.00 1/31/2017 15.00 12.10 11.80 13.10 11.80 11.00 11.50 10.80 11.80 13.60 2/28/2017 15.50 12.50 12.30 13.40 11.60 10.90 11.30 10.30 11.50 13.40 3/30/2017 15.80 12.40 12.50 13.60 12.00 10.80 11.60 11.30 11.30 13.50 4/20/2017 14.60 12.20 12.00 12.80 11.60 10.60 11.10 10.20 11.40 13.30 5/31/2017 13.70 11.30 10.90 11.90 10.20 9.80 10.50 9.30 10.70 12.60 6/26/2017 13.90 11.40 11.00 12.10 10.60 9.90 10.20 9.60 10.60 12.20 7/31/2017 13.80 � ; ' �� 11.10 11.50 10.80 11.10 11.50 11.70 10.50 10.80 9.80 10.40 10.10 11.00 9.10 9.80 9.90 10.60 12.10 13.20 8/31/2017 14.10 9/22/2017 14.50 12.00 11.50 12.00 11.00 10.80 11.80 10.20 10.80 13.70 10/25/2017 14.70 11.80 11.80 12.20 11.30 10.60 11.40 9.90 10.60 13.80 11/30/2017 15.40 12.00 11.70 12.50 11.40 10.50 12.20 9.80 10.50 13.50 12/14/2017 15.50 12.10 11.90 12.80 11.30 10.80 12.10 10.00 10.70 13.40 1/31/2018 15.80 12.60 12.00 13.20 11.90 10.90 12.30 10.60 13.60 2/27/2018 15.60 12.40 12.20 13.00 11.50 11.20 11.80 10.20 11.00 3/30/2018 15.80 12.50 12.40 13.10 11.80 11.30 12.00 10.60 11.40 4/30/2018 14.80 12.10 11.70 12.60 11.30 10.80 11.50 10.30 11.00 5/31/2018 14.00 11.20 11.30 11.80 10.60 10.50 10.80 9.50 10.20 6/29/2018 13.60 11.40 11.00 11.50 10.50 10.30 10.50 9.30 9.60 7/31/2018 14.20 11.50 11.40 11.60 10.70 10.10 11.00 9.50 10.30 8/24/2018 14.40 11.80 11.30 12.00 10.80 10.40 11.30 9.70 10.70 9/18/2018 14.68 12.01 12.48 12.17 11.05 10.62 11.50 10.03 11.30 10/15/2018 14.75 11.90 11.55 13.32 11.13 10.60 11.28 9.93 10.85 11/19/2018 15.14 12.08 11.63 12.67 11.19 10.53 11.10 9.72 10.57 12/4/2018 15.32 12.18 11.74 12.90 11.32 10.62 11.15 9.76 10.58 1/14/2019 15.63 13.37 12.35 11.97 13.23 11.78 10.81 11.27 9.93 10.73 2/17/2019 15.44 13.20 12.29 11.88 13.80 11.45 10.71 11.25 9.84 10.70 3/10/2019 14.95 12.80 11.92 11.73 12.75 11.78 10.60 11.40 9.75 10.50 4/25/2019 13.58 11.69 11.32 11.50 11.60 10.80 10.52 11.35 10.03 10.93 5/29/2019 13.62 11.55 10.92 10.80 11.30 10.40 9.93 10.41 9.29 6/19/2019 13.42 11.33 10.68 11.47 10.70 9.46 9.22 8.70 9.10 7/17/2019 10.80 10.38 10.20 10.58 9.51 9.58 9.63 8.38 9.29 08/27/19 13.75 11.75 11.38 10.68 7.22 10.30 9.86 10.02 9.40 10.62 09/25/19 14.35 12.28 12.82 11.28 11.72 10.81 10.57 11.65 10.05 11.06 10/22/19 14.23 13.12 11.84 11.40 11.92 10.99 10.64 11.55 10.04 11.03 11/25/19 15.15 12.96 12.04 11.48 12.88 11.08 10.37 11.04 9.45 10.39 12/18/19 14.57 13.18 12.21 11.74 12.92 11.32 10.65 11.16 9.78 10.52 01/28/20 15.62 13.40 12.36 11.96 13.20 11.56 10.82 11.36 9.98 10.77 02/27/20 15.71 12.36 13.30 11.99 13.21 11.58 10.85 11.30 10.01 10.69 03/24/20 15.12 12.88 11.65 11.66 12.69 11.29 10.33 10.60 9.42 10.00 04/28/20 15.07 12.02 11.70 11.35 12.02 10.94 10.54 11.35 9.95 10.78 05/19/20 15.05 12.31 11.61 11.41 12.07 10.81 10.49 11.42 9.76 10.44 06/30/20 14.75 11.76 11.23 10.77 11.62 10.67 10.02 11.21 8.97 9.66 07/21/20 14.91 12.40 11.48 11.29 12.02 10.87 10.00 11.32 9.01 9.72 08/31/20 15.34 13.03 12.28 11.81 12.63 11.37 10.84 10.08 10.94 09/28/20 15.21 12.86 12.09 11.84 12.57 11.42 10.64 11.57 10.29 11.17 10/29/20 15.50 13.00 12.90 12.20 12.70 11.60 11.00 11.60 10.40 15.70 11/27/20 16.00 13.20 12.80 12.30 13.30 11.70 10.90 11.30 10.10 15.30 12/23/20 16.10 13.40 13.00 12.40 13.50 11.80 10.90 11.50 10.10 15.40 01/30/21 16.10 13.50 12.90 12.40 13.50 11.80 11.00 11.40 10,20 15.40 02/27/21 16.00 13.40 12.90 12.40 13.60 11.80 11.00 11.30 10.00 13.50 03/20/21 15.20 12.60 12.10 12.00 12.90 11.50 10.70 11.00 9.7 13.1 04/29/21 14.30 11.80 11.90 11.50 11.80 10.90 10.40 10.90 9.8 14.8 05/27/21 14.30 11.80 12.00 11.30 11.70 10.60 10.20 11.30 9.8 15.3 06/27/21 13.50 11.00 10.40 10.80 11.00 10.10 9.40 9.30 8.70 12.80 REPL: DATA ENTRY top of Riser (ft) MW -12 MW -13 MW -14 MW -15 MvV-16 MW -17 Notes MW -1 14.64 14.10 13.25 12.94 7.54 17.22 4,953.5 15.00 14.00 13.60 13.60 7.70 16.00 4,954.2 14.75 14.15 13.60 13.80 7.60 15.25 4,953.5 14.31 13.29 13.20 12.99 7.12 14.65 4,954.4 13.29 11.26 11.74 12.06 6.90 13.65 4,953.4 12.80 10.30 10.50 10.98 6.80 12.90 4,954.7 11.21 8.99 9.19 10.11 6.99 12.00 4,956.8 10.93 8.51 8.70 9.75 7.03 11.30 4,955.5 11.00 8.28 8.51 9.48 7.00 11.00 4,955.3 10.72 7.83 8.00 9.00 6.95 10.50 4,954.7 10.81 8.00 8.13 9.27 7.00 10.50 4,955.2 11.53 8.38 8.58 9.75 7.22 10.60 4,954.0 11.80 8.30 8.90 10.03 7.30 10.90 4,954.0 11.92 8.50 8.98 10.25 7.32 11.00 4,953.9 12.10 9.88 9.39 10.42 7.36 11.10 4,953.9 13.43 12.59 11.52 11.63 6.99 10.50 4,955.0 12.84 11.59 11.32 11.66 7.10 10.50 4,955.6 11.85 10.12 9.93 10.65 6.83 10.50 4,956.0 11.67 10.27 10.88 11.22 6.95 10.50 4,955.6 12.42 10.25 11.60 12.00 7.10 10.50 4,955.6 12.80 10.85 12.92 12.76 7.14 10.60 4,955.3 7.11 10.34 11.00 11.55 7.11 10.40 4,955.1 7.20 9.92 12.74 12.57 7.20 10.60 4,954.4 7.30 10.85 15.57 14.23 7.30 10.70 4,954.0 13.37 11.32 15.81 14.43 7.35 10.10 4,953.3 13.93 13.36 14.95 15.85 7.47 11.10 2/2006-12/2006 Tetra Tech measured on behalf of Aurora 4,953.3 15.23 14.60 17.32 16.60 7.10 11.12 TSMW-2 no longer monitored per Bloom agreement 4,953.3 15.30 15.33 24.10 15.17 7.06 11.20 4,953.9 14.80 16.34 17.10 12.50 7.70 4,954.5 14.00 14.89 11.34 11.60 7.10 11.00 4,955.3 13.43 13.15 10.45 11.52 7.10 10.80 4,955.6 13.82 13.26 9.00 12.00 7.12 4,954.1 13.82 14.63 9.59 12.76 10.65 4,955.2 13.59 13.62 9.66 11.55 4,954.6 14.52 8.91 12.57 10.59 MW -12 and MW -16 Replaced 4,954.4 13.62 9.52 14.23 8.73 10.75 4,953.8 13.98 9.98 #N/A 15.23 16.64 9.95 10.91 7.45 10.59 #N/A 14.93 17.00 10.02 10.78 10.74 #N/A 15.23 18.33 10.71 11.20 7.90 11.20 4,955.0 14.93 11.35 10.99 11.04 7.56 11.00 4,956.4 13.88 18.13 11.16 10.74 7.70 9.80 4,957.2 14.14 18.18 11.61 10.45 7.68 10.00 #N/A 14.14 16.55 11.58 10.72 7.82 9.50 4,955.4 7.69 12.34 10.10 9.19 7.76 10.60 4,955.9 12.80 11.10 8.29 8.29 7.73 11.20 4,954.9 12.61 10.17 8.61 9.57 7.77 10.30 4,954.6 12.95 11.87 9.56 10.20 7.85 10.70 4,954.1 14.09 12.70 10.15 10.74 7.96 10.80 4,953.6 14.13 12.72 7.91 11.34 7.95 11.00 4,954.4 13.06 10.96 10.14 11.20 8.13 11.20 4,954.0 13.05 10.66 9.85 10.58 7.67 11.20 4,954.6 12.48 8.89 9.95 10.49 7.72 11.00 4,954.9 11.97 9.95 10.06 7.19 7.63 10.10 4,955.2 12.26 10.87 9.12 7.78 7.78 10.00 4,955.1 12.81 11.15 10.61 10.31 7.83 10.60 4,955.6 12.90 11.08 10.53 10.60 7.96 10.60 4,955.1 12.97 11.24 10.65 10.68 7.98 10.80 4,954.8 13.61 12.05 11.95 11.79 8.00 10.60 4,954.5 11.59 10.84 11.10 7.68 #N/A 13.84 11.45 11.33 11.73 7.91 11.00 4,954.3 13.96 11.39 11.13 12.71 8.05 11.00 #N/A 13.94 12.33 10.52 11.52 8.37 11.10 #N/A 18.55 15.58 11.85 12.29 7.61 11.20 4,952.8 13.88 21.05 15.65 12.47 7.15 11.20 4,953.4 16.05 10.60 4,952.8 15.46 23.20 22.02 13.05 7.02 9.70 4,953.0 16.23 24.01 22.33 14.15 7.13 10.40 4,954.9 17.60 25.02 25.04 15.73 7.44 11.00 4,954.4 18.06 25.21 25.13 13.87 7.44 11.00 4,954.1 17.91 23.40 22.86 16.38 8.03 10.80 4,953.8 18.05 23.49 22.92 16.86 8.11 11.40 4,953.5 18.55 23.58 23.04 17.38 8.43 11.90 4,953.3 18.89 23.75 23.08 17.62 8.63 12.40 4,952.3 18.72 23.69 23.15 17.67 8.52 11.70 4,952.8 17.75 22.52 22.95 17.68 7.92 11.00 4,953.4 16.35 21.88 22.24 16.51 7.24 11.40 4,955.1 15.62 21.31 21.67 11.91 7.17 11.00 4,955.6 15.21 21.12 21.82 6.42 7.64 10.80 4,955.0 15.74 21.71 22.49 15.65 7.78 11.40 4,954.8 16.57 22.26 23.20 17.17 7.90 12.00 4,954.5 16.99 22.33 23.32 17.68 7.76 13.00 4,954.3 16.52 22.00 18.26 17.71 8.11 11.90 4,953.4 15.65 17.45 15.17 14.77 8.51 10.80 4,953.1 14.51 13.46 12.26 13.04 8.10 10.10 4,953.4 14.43 11.66 10.98 12.22 8.02 11.20 4,953.0 13.55 10.84 10.38 11.83 8.01 10.80 4,953.4 13.14 10.38 9.90 11.11 7.60 10.40 4,954.3 12.80 9.78 9.37 11.04 7.46 10.00 4,954.4 12.30 9.08 8.73 3.75 7.50 9.90 4,954.7 11.02 7.90 6.67 5.07 7.40 10.20 4,955.4 11.31 7.80 7.45 5.66 7.45 10.70 4,955.8 11.71 8.01 7.80 6.45 7.64 11.00 4,955.6 11.95 8.22 8.12 9.27 7.77 11.80 4,955.4 11.92 8.22 8.20 9.67 7.88 10.90 4,954.5 12.13 8.30 8.27 9.91 7.91 10.40 4,954.4 12.46 8.67 8.61 10.33 7,96 11.00 4,954.3 12.38 8.56 8.63 10.35 7.90 11.20 4,953.9 12.46 8.75 8.70 10.41 7.87 11.60 4,953.5 12.35 8.62 8.48 10.10 7.64 11.00 4,954.4 12.32 8.60 8.55 10.07 7.70 10.80 4,955.0 12.30 8.50 8.53 10.11 7.86 11.10 4,954.8 12.34 8.65 8.60 9.95 7.81 11.00 4,955.1 12.58 8.80 8.70 10.04 7.86 11.20 4,954.6 12.53 8.79 8.76 10.17 7.84 10.50 4,954.4 12.62 8.82 8.82 10.20 7.90 10.80 4,954.1 12.50 8.65 8.68 10.25 7.90 11.20 4,953.8 12.47 8.75 8.77 10.33 8.03 11.90 4,953.5 12.60 8.71 9.80 9.80 8.05 11.30 4,953.6 12.68 8.90 8.92 8.92 8.11 11.20 4,953.4 12.63 8.81 8.85 8.85 8.05 11.20 4,952.9 12.40 8.69 8.62 8.62 7.76 11.10 4,953.1 12.15 8.38 8.35 8.35 8.71 11.10 4,954.3 12.04 8.11 8.22 8.22 7.75 10.90 4,955.0 12.02 8.14 10.80 4,955.2 12.15 8.22 8.22 7.82 10.60 4,955.4 10.85 7.21 7.34 8.79 7.60 #N/A 11.15 7.25 7.20 8.30 7.81 10.40 4,955.3 10.90 4,955.0 11.85 7.91 7.90 9.72 7.91 10.80 4,954.6 12.04 8.03 8.40 9.84 7.95 11.00 4,954.0 12.36 8.36 8.79 10.45 7.95 11.10 4,953.6 12.72 8.91 9.00 10.93 7.98 11.20 4,954.0 12.63 8.90 8.88 10.51 7.60 11.60 4,953.8 12.39 8.59 8.65 10.30 7.52 11.10 4,955.2 12.00 8.05 7.53 9.29 7.51 10.30 4,956.0 12.22 7.94 7.48 8.59 7.56 10.90 4,955.8 12.19 8.15 7.48 7.39 7.57 10.50 4,955.5 11.91 7.87 7.81 9.22 7.70 10.90 4,955.4 7.90 10.60 4,955.2 11.81 7.90 7.90 9.30 7.80 10.70 4,954.5 11.80 7.86 7.95 9.54 7.83 10.80 4,954.3 11.83 7.91 8.25 9.66 7.84 11.00 4,954.0 12.05 8.30 8.70 10.05 7.85 11.20 4,953.5 12.50 8.66 9.00 10.45 7.90 11.30 4,953.9 8.88 11.00 4,954.2 8.65 9.80 Heavy rain all month; Platte River very high 4,957.6 11.30 6.16 7.53 7.81 7.13 8.90 Platte River still high 4,958.2 11.07 6.10 7.48 7.30 6.82 9.10 4,957.4 10.49 6.54 7.48 7.71 7.29 9.80 4,956.5 11.41 7.36 7.81 8.26 7.72 10.50 4,955.4 11.64 7.50 7.90 8.66 7.71 10.60 4,955.6 7.90 10.80 4,955.5 11.44 7.31 9.05 7.81 11.00 4,955.4 11.88 7.79 7.95 8.55 7.83 11.60 4,955.0 8.25 11.10 4,954.2 11.93 7.95 8.70 7.90 7.89 11.50 4,953.7 11.30 4,953.9 10.20 4,955.2 6.58 6.20 6.22 6.96 7.20 9.60 4,956.5 11.04 7.03 5.71 6.61 7.56 9.60 4,956.4 6.44 10.40 4,955.5 11.35 7.51 7.28 7.11 7.75 10.70 4,954.8 12.40 8.46 7.50 8.15 7.79 10.50 4,954.5 10.80 4,954.4 7.41 10.70 4,954.2 12.76 8.90 7.90 9.95 8.10 11.30 4,954.4 10.80 4,953.9 12.67 9.66 7.99 10.65 7.97 11.00 4,953.6 11.40 4,954.8 10.90 4,955.7 11.50 7.60 6.13 9.33 7.56 11.00 4,955.5 10.50 4,955.6 10.70 4,955.3 11.95 7.84 7.85 9.42 7.67 10.60 4,954.9 10.70 4,954.7 10.50 10.90 4,954.0 4,953.9 8.42 8.35 8.40 9.74 7.95 11.20 11.10 MW -11 lost in grading (due to Todd Creek pipeline/well field con 4,953.6 4,953.8 11.60 4,953.6 11.20 4,954.6 12.50 8.40 8.50 10.10 5.10 11.10 Al QC began measuring TSMW's 12 thru 16 (previously measurec 4,955.4 11.90 12.00 8.20 8.00 8.10 8.20 9.80 9.60 7.80 7.70 10.70 10.80 4,955.8 4,955.2 12.00 7.90 8.10 9.50 7.70 10.50 4,955.0 15.87 8.12 8.12 9.80 7.70 10.52 4,954.7 12.31 8.20 8.25 9.80 7.67 10.54 4,954.7 12.29 8.17 8.28 9.89 7.85 10.61 4,954.3 12.36 8.22 8.33 9.98 7.91 10.68 4,954.1 12.64 8.54 8.65 10.50 7.97 10.95 MW -11 destroyed. 4,953.8 12.55 8.43 7.55 10.30 7.96 10.87 MW -11 destroyed. 4,954.0 12.58 8.58 8.69 10.62 7.97 11.00 MW -11 destroyed. 4,954.5 12.30 8.33 9.62 8.40 7.73 11.00 MW -11 destroyed. 4,955.8 11.96 8.40 8.05 10.52 7.60 10.87 MW -11 destroyed. Did not measure MW -10. 4,955.8 11.85 7.84 7.88 9.51 7.60 10.78 MW -11 destroyed. 4,956.0 11.03 7.10 7.23 8.82 7.54 10.20 MW -11 destroyed. Did not measure MW -1. #N/A 11.45 7.29 7.29 6.68 7.58 10.40 MW -11 destroyed. 4,955.7 11.90 7.68 7.70 7.65 7.68 10.45 MW -11 destroyed. 4,955.1 12.20 7.98 8.00 8.45 7.67 10.42 MW -11 destroyed 4,955.2 12.11 7.90 8.06 9.40 9.85 10.55 MW -11 destroyed 4,954.3 12.35 8.24 8.27 7.87 7.89 10.65 MW -11 destroyed 4,954.9 12.63 8.51 8.58 10.27 7.95 10.81 MW -11 destroyed 4,953.8 12.73 8.66 8.76 10.30 8.03 10.92 MW -11 destroyed 4,953.7 12.59 8.53 8.68 9.82 7.75 10.99 MW -11 destroyed 4,954.3 12.38 8.44 8.44 8.65 7.67 10.98 MW -11 destroyed 4,954.4 12.35 8.57 8.34 9.67 7.62 10.94 MW -11 destroyed 4,954.4 11.92 7.96 8.02 9.29 7.62 10.84 MW -11 destroyed 4,954.7 11.98 7.87 7.93 7.07 7.64 10.89 MW -11 destroyed 4,954.5 12.46 8.02 8.37 7.59 8.21 11.61 MW -8 Covered w/wasps, didn't measure. MW -11 destroyed. 4,954.1 12.65 8.39 8.48 7.89 7.69 10.57 MW -11 destroyed Measured MW -2 on 11/3/2020. MW -11 destroyed 4,954.2 12.80 8.70 8.80 8.80 7.90 10.60 4,953.9 12.80 8.60 8.80 10.30 8.00 10.90 Measured MW -1 on 11/30/2020. MW -11 destroyed 4,953.4 12.90 8.50 8.80 10.40 8.10 10.90 MW -11 destroyed 4,953.3 13.0 8.8 9.0 10.5 8.1 11,1 MW -11 destroyed 4,953.3 13.0 8.9 9.1 11.0 8.2 11.2 MW -11 destoyed 4,953.4 12.8 8.7 9.0 10.9 8.0 11.2 MW -11 destoyed 4,954.2 12.4 8.3 8.5 9.3 7.7 11.2 MW -11 destroyed 4,955.1 12.0 8.0 8.0 9.0 7.7 11.0 MW -11 destroyed 4,955.1 11.70 7.70 7.80 9.50 7.80 10.60 MW -11 destroyed 4,955.9 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Water Elevation (ft AMSL) MW -2B MW -3 MW -4 MW -5 MW -6 MW -7 MW -8 MW -9 MW -10 MW -11 VIW-12/12/ MW -13 MW -14 4,954.3 4,953.2 4,951.7 4,952.5 4,951.1 4,951.0 4,950.7 4,947.8 4,947.5 4,943.1 4,948.1 4,944.3 4,945.8 4,954.0 4,952.9 4,951.4 4,952.2 4,950.8 4,950.8 4,950.7 4,947.8 4,947.3 4,945.8 4,947.7 4,944.4 4,945.5 4,954.4 4,953.6 4,951.8 4,952.5 4,951.3 4,951.4 4,951.3 4,948.6 4,948.5 4,946.6 4,948.0 4,944.3 4,945.5 4,955.1 4,953.9 4,952.1 4,953.3 4,951.4 4,951.3 4,951.0 4,949.0 4,948.5 4,946.7 4,948.4 4,945.2 4,945.9 #N/A 4,953.6 4,952.3 4,953.5 4,951.9 4,951.6 4,950.7 4,949.5 4,948.4 4,946.9 4,949.4 4,947.2 4,947.3 4,955.6 4,954.1 4,952.5 4,953.9 4,952.0 4,951.5 4,951.1 4,949.8 4,949.4 4,947.6 4,949.9 4,948.1 4,948.6 #N/A 4,954.4 4,953.4 4,955.5 4,952.8 4,952.3 4,951.5 4,950.7 4,949.3 4,947.1 4,951.5 4,949.5 4,949.9 4,956.2 4,954.2 4,953.4 4,954.8 4,952.9 4,952.3 4,951.5 4,950.4 _ 4,950.4 4,948.5 4,951.8 4,949.9 4,950.4 4,955.8 4,954.0 4,953.4 4,954.7 4,952.9 4,952.3 4,951.4 4,950.4 4,949.4 4,947.4 4,951.7 4,950.2 4,950.6 4,955.7 4,954.0 4,953.2 4,954.5 4,952.8 4,952.3 4,951.2 4,950.5 4,949.1 4,948.0 4,952.0 4,950.6 4,951.1 4,955.7 4,954.4 4,953.5 4,954.9 4,953.0 4,952.7 4,952.0 4,950.9 4,950.0 4,948.2 4,951.9 4,950.4 4,950.9 4,955.1 4,953.6 4,952.7 4,954.0 4,952.4 4,952.0 4,951.2 4,950.4 4,947.9 4,947.5 4,951.2 4,950.1 4,950.5 4,954.6 4,953.4 4,952.6 4,953.5 4,952.1 4,951.9 4,950.9 4,950.2 4,949.4 4,947.6 4,950.9 4,950.1 4,950.2 4,954.3 4,953.2 4,952.4 4,953.2 4,951.8 4,951.6 4,950.9 4,950.0 4,949.2 4,947.6 4,950.8 4,949.9 4,950.1 4,954.5 4,953.5 4,952.4 4,953.1 4,951.9 4,951.7 4,951.2 4,949.8 4,949.3 4,947.3 4,950.6 4,948.6 4,949.7 4,955.4 4,953.5 4,952.5 4,954.2 4,951.9 4,951.4 4,950.5 4,948.1 4,947.1 4,946.1 4,949.3 4,945.9 4,947.5 4,956.3 4,955.0 4,953.3 4,954.7 4,952.6 4,952.6 4,953.6 4,950.0 4,949.4 4,948.8 4,949.9 4,946.9 4,947.7 4,956.7 4,955.6 4,953.9 4,954.9 4,953.4 4,953.3 4,953.0 4,950.9 4,950.4 4,948.8 4,950.9 4,948.3 4,949.1 4,956.4 4,954.4 4,953.7 4,954.8 4,953.2 4,952.6 4,951.6 4,950.1 4,949.3 4,947.3 4,951.1 4,948.2 4,948.2 4,955.8 4,956.0 4,953.0 4,954.6 4,952.6 4,952.1 4,953.1 4,949.8 4,950.5 4,949.5 4,950.3 4,948.2 4,947.5 4,956.0 4,954.0 4,953.0 4,954.5 4,952.4 4,952.0 4,951.2 4,949.4 4,948.5 4,947.5 4,949.9 4,947.6 4,946.1 4,955.6 4,954.0 4,952.6 4,954.4 4,952.1 4,951.6 4,950.9 4,949.3 4,948.3 4,947.3 4,955.6 4,948.1 4,948.1 4,954.8 4,953.4 4,952.4 4,953.7 4,951.9 4,951.7 4,950.6 4,949.7 4,948.7 4,947.5 4,955.5 4,948.5 4,946.3 4,954.4 4,952.8 4,952.2 4,953.2 4,951.6 4,951.3 4,950.6 4,949.6 4,948.6 4,947.5 4,955.4 4,947.6 4,943.5 #N/A 4,952.8 4,952.2 4,952.6 4,951.2 4,951.1 4,950.6 4,949.5 4,948.7 4,946.8 4,949.4 4,947.1 4,943.3 4,954.0 4,953.0 4,951.7 4,952.4 4,951.1 4,951.0 4,950.8 4,948.4 4,948.6 4,946.1 4,948.8 4,945.1 4,944.1 #N/A 4,952.0 4,951.7 4,952.4 4,951.1 4,951.1 4,950.8 4,948.0 4,947.2 4,945.8 4,947.5 4,943.8 _ 4,941.7 #N/A 4,952.9 4,951.6 4,953.0 4,951.0 4,950.8 4,950.4 4,947.8 4,947.7 4,944.6 4,947.4 4,943.1 4,935.0 #N/A 4,953.0 4,951.9 4,953.5 4,949.4 4,951.3 4,951.5 4,945.5 4,948.4 4,946.7 4,947.9 4,942.1 4,942.0 #N/A #N/A #N/A 4,954.3 4,954.4 4,954.0 4,952.6 4,953.2 4,952.7 4,954.2 4,954.5 4,954.3 4,952.0 4,952.6 4,952.2 4,951.9 4,952.4 4,951.8 4,951.5 4,951.7 4,950.3 4,948.7 4,948.8 4,947.6 4,948.4 4,948.3 4,947.9 4,946.5 4,946.7 4,946.3 4,948.7 4,949.3 4,948.9 4,943.6 4,945.3 4,945.2 4,947.7 4,948.6 4,950.1 #N/A #N/A 4,953.5 4,953.4 4,952.6 4,952.3 4,954.4 4,953.9 4,952.1 4,951.9 4,951.4 4,951.4 4,950.5 4,950.8 4,947.7 4,947.9 4,947.9 4,948.1 4,945.8 4,945.8 4,948.9 4,949.1 4,943.8 4,944.8 4,949.5 4,949.4 #N/A #N/A #N/A 4,953.3 4,953.3 #N/A 4,952.4 4,952.0 #N/A 4,953.7 4,953.0 #N/A 4,950.6 4,950.3 #N/A 4,951.2 4,950.9 #N/A 4,948.8 4,948.8 #N/A 4,947.8 4,947.0 #N/A 4,947.3 4,947.5 #N/A 4,949.5 4,949.5 #N/A #N/A #N/A 4,948.0 4,944.5 4,945.4 #N/A 4,952.1 4,951.5 #N/A #N/A 4,953.4 4,952.4 4,953.7 4,950.6 4,951.2 4,949.0 4,947.8 4,947.5 4,949.5 4,946.7 4,942.4 4,951.1 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 4,947.0 4,942.1 4,951.0 #N/A 4,954.4 4,953.0 4,953.8 4,951.1 4,951.6 4,949.7 4,947.9 4,948.3 4,950.1 4,946.7 4,940.7 4,950.3 #N/A #N/A 4,957.1 4,956.9 4,954.2 4,954.7 4,955.0 4,956.0 4,952.3 4,953.0 4,953.3 4,953.6 4,952.1 4,951.4 4,949.5 4,949.2 4,949.2 4,949.4 4,953.1 4,952.3 4,947.0 4,948.1 4,947.7 4,940.9 4,950.1 4,949.9 #N/A #N/A 4,953.9 4,955.7 4,952.3 4,953.6 4,950.2 4,948.7 4,948.6 4,950.9 4,947.8 4,940.9 4,949.4 #N/A 4,954.2 4,954.1 4,955.3 4,952.6 4,953.4 4,950.6 4,949.2 4,949.2 4,951.8 4,947.8 4,942.5 4,949.5 #N/A 4,954.1 4,953.0 4,955.1 4,951.5 4,951.2 4,949.0 4,949.0 4,948.9 4,950.4 4,954.3 4,946.7 4,950.9 #N/A 4,953.6 4,952.5 4,954.2 4,951.2 4,951.5 4,948.0 4,949.3 4,949.2 4,949.9 4,949.2 4,948.0 4,952.8 #N/A 4,953.9 4,952.9 4,954.1 4,951.3 4,951.9 4,949.3 4,948.9 4,948.6 4,950.7 4,949.4 4,948.9 4,952.4 #N/A 4,953.4 4,952.9 4,953.7 4,951.1 4,951.5 4,948.7 4,949.7 4,948.4 4,949.9 4,949.0 4,947.2 4,951.5 #N/A 4,953.1 4,951.9 4,953.0 4,950.3 4,950.9 4,948.4 4,948.6 4,948.0 4,949.5 4,947.9 4,946.4 4,950.9 #N/A #N/A 4,953.4 4,953.6 4,952.0 4,952.4 4,953.0 4,953.5 4,950.3 4,950.9 4,951.0 4,951.5 4,948.8 4,949.0 4,947.2 4,949.9 4,947.3 4,948.9 4,949.9 4,950.3 4,947.8 4,948.9 4,946.3 4,948.1 4,953.1 4,950.9 #N/A 4,953.9 4,952.4 4,953.7 4,950.9 4,951.2 4,948.4 4,949.3 4,948.5 4,949.9 4,948.9 4,948.4 4,951.2 #N/A 4,953.9 4,953.0 4,954.1 4,951.5 4,951.8 4,949.0 4,950.3 4,948.8 4,950.3 4,949.5 4,950.2 4,951.1 #N/A 4,954.4 4,954.1 4,954.5 4,951.7 4,952.0 4,949.4 4,950.5 4,949.3 4,950.7 4,950.0 4,949.1 4,951.0 #N/A 4,954.3 4,953.7 4,954.1 4,951.5 4,952.2 4,949.6 4,950.1 4,948.6 4,950.9 4,949.7 4,948.2 4,951.9 #N/A #N/A 4,954.2 4,953.7 4,953.3 4,953.1 4,954.8 4,954.5 4,952.0 4,951.5 4,952.0 4,951.6 4,949.2 4,948.8 4,949.9 4,949.7 4,948.6 4,948.0 4,950.5 4,950.6 4,949.2 4,949.1 4,947.9 4,948.0 4,950.4 4,950.5 #N/A #N/A 4,953.4 4,953.4 4,952.6 4,952.4 4,954.0 4,953.5 4,950.9 4,950.8 4,951.2 4,951.2 4,948.4 4,948.8 4,949.3 4,949.2 4,947.6 4,947.0 4,950.2 4,951.7 4,949.0 4,948.4 4,947.8 4,947.0 4,950.4 4,949.1 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 4,947.5 4,950.2 #N/A 4,953.4 4,952.1 4,952.1 4,950.4 4,951.0 4,948.6 4,949.4 4,948.9 4,950.1 4,948.1 4,947.6 4,949.7 #N/A 4,953.6 4,951.6 4,949.2 4,950.3 4,950.9 4,948.5 4,949.2 4,948.5 4,951.2 4,948.0 4,947.7 4,949.9 #N/A 4,953.3 4,951.4 4,945.3 4,949.7 4,950.8 4,948.7 4,949.1 4,948.5 4,950.4 4,948.0 4,946.7 4,950.5 #N/A 4,953.6 4,951.6 4,950.8 4,949.8 4,950.6 4,948.3 4,947.5 4,947.6 4,949.3 4,943.4 4,943.5 4,949.2 #N/A 4,954.5 4,952.2 4,951.6 4,950.5 4,951.4 4,948.8 4,948.7 4,949.1 4,950.9 4,948.1 4,938.0 4,945.4 #N/A 4,953.6 4,951.6 4,950.8 4,949.8 4,950.6 4,948.3 4,948.8 4,949.5 4,951.8 4,945.9 #N/A #N/A #N/A 4,953.9 4,952.2 4,951.6 4,950.3 4,950.2 4,948.5 4,949.3 4,949.3 4,952.5 4,946.5 4,935.9 4,939.0 #N/A 4,953.5 4,952.2 4,954.4 4,950.9 4,950.8 4,948.4 4,947.2 4,947.6 4,950.1 4,945.7 4,935.1 4,938.7 #N/A 4,953.0 4,951.6 4,954.2 4,950.9 4,950.9 4,948.3 4,947.0 4,947.0 4,949.8 4,944.4 4,934.0 4,936.0 #N/A 4,952.5 4,951.4 4,954.4 4,950.8 4,950.3 4,947.8 4,946.7 4,946.7 4,949.5 4,943.9 4,933.9 4,935.9 #N/A #N/A #N/A 4,953.4 4,952.7 4,952.4 4,951.9 4,951.3 4,951.1 4,953.0 4,952.8 4,954.0 4,950.8 4,950.3 4,949.8 4,950.9 4,949.4 4,949.2 4,948.5 4,948.1 4,947.8 4,947.3 4,947.1 4,946.7 4,947.6 4,947.2 4,946.6 4,949.9 4,949.7 4,950.3 4,944.1 4,943.9 4,943.4 4,935.7 4,935.6 4,935.5 4,938.2 4,938.1 4,938.0 #N/A 4,951.6 4,950.2 4,952.2 4,949.5 4,948.7 4,947.6 4,946.6 4,946.3 4,949.8 4,943.1 4,935.3 4,938.0 #N/A 4,952.3 4,950.5 4,952.5 4,950.3 4,948.9 4,948.1 4,946.7 4,947.2 4,950.4 4,943.2 4,935.4 4,937.9 #N/A #N/A 4,952.7 4,954.6 4,950.8 4,952.0 4,953.0 4,954.2 4,950.1 4,951.2 4,949.0 4,950.0 4,948.7 4,949.1 4,946.9 4,948.1 4,946.7 4,948.2 4,950.5 4,951.1 4,944.2 4,945.6 4,936.5 4,937.2 4,938.1 4,938.8 #N/A 4,954.8 4,952.4 4,954.4 4,951.0 4,950.4 4,949.8 4,948.8 4,948.4 4,951.4 4,946.3 4,937.8 4,939.4 #N/A 4,954.0 4,952.6 4,954.3 4,951.1 4,950.4 4,948.9 4,948.3 4,948.8 4,950.0 4,946.8 4,937.9 4,939.2 #N/A 4,953.4 4,952.7 4,953.5 4,950.5 4,950.3 4,948.4 4,947.8 4,948.1 4,949.6 4,946.2 4,937.4 4,938.6 #N/A #N/A 4,953.1 4,952.5 4,952.3 4,952.4 4,952.6 4,952.5 4,950.3 4,949.6 4,949.4 4,949.1 4,947.9 4,947.4 4,947.7 4,946.9 4,948.3 4,947.4 4,949.1 4,948.7 4,945.4 4,945.0 4,936.8 4,936.7 4,937.8 4,937.7 #N/A #N/A 4,953.4 4,953.0 4,951.8 4,952.2 4,952.6 4,952.1 4,949.9 4,949.4 4,950.2 4,951.0 4,948.2 4,948.9 4,948.0 4,947.7 4,948.3 4,948.0 4,949.7 4,949.8 4,945.4 4,946.3 4,937.1 4,941.6 4,942.8 4,945.9 #N/A 4,949.4 4,952.6 4,952.7 4,949.8 4,950.8 4,948.8 4,947.4 4,948.4 4,950.7 4,947.5 4,945.6 4,948.8 #N/A 4,952.6 4,952.2 4,953.1 4,950.3 4,951.0 4,947.6 4,948.7 4,947.9 4,949.5 4,947.5 4,947.4 4,950.1 #N/A 4,953.3 4,951.6 4,952.9 4,949.8 4,950.8 4,948.2 4,948.0 4,947.3 4,949.1 4,948.4 4,948.2 4,950.7 #N/A 4,953.6 4,952.0 4,953.4 4,950.1 4,951.0 4,948.5 4,948.2 4,947.0 4,948.9 4,948.8 4,948.7 4,951.1 #N/A 4,954.2 4,952.2 4,953.6 4,950.5 4,950.4 4,948.7 4,948.7 4,947.3 4,949.6 4,949.2 4,949.3 4,951.7 #N/A 4,954.6 4,951.9 4,953.5 4,950.3 4,950.2 4,947.9 4,949.1 4,947.5 4,950.0 4,949.7 4,950.0 4,952.3 #N/A 4,954.8 4,951.4 4,953.3 4,949.7 4,950.0 4,947.6 4,948.8 4,947.3 4,949.7 4,950.9 4,951.2 4,954.4 #N/A 4,955.0 4,951.2 4,952.8 4,949.3 4,949.6 4,947.2 4,948.5 4,946.5 4,949.4 4,950.7 4,951.3 4,953.6 #N/A 4,954.5 4,950.4 4,952.5 4,948.8 4,949.4 4,947.0 4,947.7 4,946.3 4,949.1 4,950.3 4,951.1 4,953.2 #N/A 4,954.4 4,950.1 4,952.2 4,948.7 4,949.2 4,947.1 4,947.1 4,946.2 4,949.3 4,950.0 4,950.8 4,952.9 #N/A 4,953.7 4,950.3 4,953.0 4,949.5 4,950.1 4,948.0 4,948.0 4,946.4 4,949.9 4,950.0 4,950.8 4,952.8 #N/A 4,954.2 4,950.8 4,953.4 4,950.2 4,950.6 4,948.2 4,948.7 4,947.3 4,950.3 4,949.8 4,950.8 4,952.8 #N/A 4,953.1 4,951.9 4,953.8 4,950.9 4,950.3 4,948.0 4,949.1 4,947.9 4,949.2 4,949.5 4,950.4 4,952.4 #N/A 4,953.6 4,952.7 4,953.7 4,950.7 4,951.2 4,948.8 4,949.9 4,948.6 4,949.6 4,949.6 4,950.5 4,952.4 #N/A 4,953.2 4,952.2 4,953.6 4,950.4 4,951.0 4,948.2 4,949.8 4,948.1 4,949.1 4,949.5 4,950.3 4,952.3 #N/A 4,953.6 4,952.7 4,953.9 4,951.0 4,951.1 4,948.8 4,949.9 4,948.6 4,949.3 4,949.6 4,950.4 4,952.6 #N/A 4,953.5 4,952.7 4,954.2 4,951.2 4,951.5 4,948.9 4,949.3 4,947.9 4,949.2 4,949.6 4,950.5 4,952.5 #N/A #N/A 4,953.2 4,953.4 4,952.3 4,952.7 4,953.8 4,954.3 4,950.9 4,950.8 4,951.1 4,951.0 4,948.6 4,948.5 4,949.2 4,949.5 4,947.6 4,948.5 4,948.9 4,949.7 4,949.7 4,949.6 4,950.6 4,950.4 4,952.5 4,952.4 #N/A 4,953.1 4,952.3 4,953.9 4,950.3 4,950.3 4,948.0 4,949.1 4,948.3 4,949.3 4,949.4 4,950.3 4,952.3 #N/A 4,953.4 4,952.4 4,953.8 4,951.0 4,951.2 4,948.5 4,949.2 4,947.5 4,949.1 4,949.4 4,950.3 4,952.3 #N/A 4,953.6 4,952.2 4,953.6 4,950.7 4,951.0 4,948.6 4,948.8 4,947.8 4,948.8 4,949.3 4,950.2 4,952.2 #N/A 4,953.4 4,951.7 4,953.2 4,950.3 4,950.1 4,948.1 4,948.7 4,947.8 4,948.8 4,949.5 4,950.4 4,952.4 #N/A 4,953.2 4,951.2 4,953.1 4,949.5 4,950.0 4,947.7 4,948.3 4,947.5 4,948.7 4,949.5 4,950.3 4,952.3 #N/A 4,953.0 4,952.2 4,953.1 4,950.5 4,951.0 4,948.4 4,949.5 4,948.4 4,949.2 4,949.4 4,950.4 4,951.2 #N/A 4,953.1 4,952.2 4,953.2 4,950.6 4,951.2 4,948.7 4,949.6 4,948.5 4,949.6 4,949.3 4,950.2 4,952.1 #N/A 4,953.2 4,952.5 4,953.3 4,950.8 4,951.4 4,948.9 4,949.5 4,948.5 4,949.5 4,949.3 4,950.3 4,952.2 #N/A 4,953.4 4,952.4 4,953.2 4,951.0 4,951.6 4,949.0 4,949.5 4,948.6 4,949.3 4,949.6 4,950.4 4,952.4 #N/A 4,954.0 4,952.9 4,954.0 4,951.4 4,952.3 4,949.4 4,949.7 4,948.5 4,949.9 4,949.8 4,950.7 4,952.7 #N/A 4,953.9 4,952.8 4,954.6 4,951.6 4,952.0 4,949.3 4,949.9 4,948.2 4,949.8 4,949.9 4,951.0 4,952.8 #N/A 4,953.8 4,952.5 4,954.8 4,951.7 4,951.6 4,949.1 4,949.8 4,947.8 4,949.4 4,949.9 4,950.9 #N/A #N/A 4,953.7 4,952.8 4,955.0 4,951.5 4,951.7 4,948.9 4,950.1 4,947.9 4,949.6 4,949.8 4,950.8 4,952.8 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 4,951.1 4,951.9 4,953.7 #N/A #N/A 4,953.9 4,953.8 4,953.5 4,953.2 4,954.8 4,954.4 4,951.8 4,951.4 4,952.2 4,952.0 4,949.4 4,949.3 4,950.3 4,950.2 4,949.4 4,949.2 4,950.1 4,950.0 4,950.8 #N/A 4,951.8 #N/A 4,953.8 #N/A #N/A 4,953.1 4,952.7 4,954.1 4,951.5 4,951.4 4,948.6 4,949.9 4,948.7 4,949.4 4,950.1 4,951.2 4,953.1 #N/A 4,952.9 4,951.8 4,953.4 4,950.3 4,950.2 4,946.3 4,946.3 4,947.5 4,950.3 4,949.9 4,951.0 4,952.6 #N/A 4,953.1 4,952.0 4,953.3 4,950.5 4,950.5 4,948.2 4,948.8 4,947.4 4,949.2 4,949.6 4,950.7 4,952.3 #N/A 4,953.0 4,952.4 4,953.6 4,950.8 4,951.2 4,948.6 4,949.5 4,947.8 4,949.1 4,949.2 4,950.2 4,952.0 #N/A 4,953.1 4,952.2 4,953.4 4,950.5 4,951.4 4,948.0 4,949.0 4,947.5 4,949.5 4,949.3 4,950.2 4,952.2 #N/A 4,954.4 4,953.2 4,954.4 4,951.7 4,952.3 4,950.2 4,950.6 4,949.4 4,950.9 4,949.6 4,950.5 4,952.4 #N/A 4,954.6 4,953.7 4,955.6 4,952.5 4,952.4 4,949.7 4,950.3 4,948.7 4,950.4 4,950.0 4,951.0 4,953.5 #N/A 4,954.4 4,953.8 4,955.5 4,952.2 4,952.5 4,949.5 4,949.9 4,948.4 4,950.3 4,949.7 4,951.1 4,953.6 #N/A #N/A #N/A 4,953.7 4,953.4 4,953.8 4,953.1 4,952.6 4,953.0 4,955.1 4,955.0 4,954.5 4,951.8 4,951.7 4,951.5 4,951.7 4,951.3 4,951.7 4,948.8 4,948.7 4,949.0 4,950.1 4,949.9 4,950.0 4,948.3 4,948.1 4,948.4 4,949.8 4,949.7 4,949.2 4,949.8 4,950.1 #N/A 4,950.9 4,951.2 #N/A 4,953.6 4,953.2 4,953.1 #N/A 4,953.5 4,952.7 4,954.1 4,951.0 4,951.5 4,948.6 4,949.8 4,947.9 4,949.0 4,950.2 4,951.2 4,953.1 #N/A 4,953.2 4,952.5 4,953.8 4,951.3 4,951.3 4,948.4 4,949.7 4,948.3 4,948.8 4,950.2 4,951.2 4,953.1 #N/A 4,952.8 4,952.2 4,953.7 4,950.9 4,951.4 4,948.3 4,949.1 4,948.0 4,948.7 4,950.1 4,951.2 4,952.8 #N/A 4,953.0 4,952.0 4,953.4 4,950.8 4,951.1 4,948.5 4,949.2 4,947.8 4,948.9 4,949.9 4,950.8 4,952.3 #N/A 4,953.3 4,952.2 4,953.2 4,950.9 4,951.3 4,948.9 4,949.8 4,948.1 4,949.2 4,949.5 4,950.4 4,952.0 #N/A #N/A 4,953.4 4,958.6 4,952.4 4,955.7 4,953.5 4,956.6 4,951.3 4,953.9 4,951.6 4,954.9 4,949.2 4,952.4 4,949.9 4,952.8 4,948.3 4,951.6 4,949.7 4,954.7 #N/A #N/A #N/A #N/A 4,952.2 4,952.4 #N/A 4,958.0 4,956.4 4,960.4 4,954.7 4,955.2 4,952.8 4,953.3 4,952.0 4,954.3 4,950.7 4,952.9 4,953.5 #N/A #N/A 4,954.9 4,954.6 4,955.2 4,954.1 4,957.1 4,956.0 4,953.7 4,952.7 4,953.6 4,952.3 4,949.4 4,949.3 4,951.9 4,950.7 4,949.1 4,948.1 4,950.3 4,949.7 4,950.9 4,951.5 4,953.0 4,952.5 4,953.6 4,953.6 #N/A #N/A 4,954.0 4,954.4 4,953.4 4,953.1 4,955.1 4,954.8 4,951.9 4,951.8 4,951.7 4,952.2 4,949.1 4,949.4 4,950.1 4,950.3 4,948.3 4,948.4 4,949.9 4,950.1 4,950.6 4,950.3 4,951.7 4,951.6 4,953.2 4,953.1 #N/A 4,954.2 4,953.2 4,954.5 4,951.7 4,952.3 4,949.5 4,950.2 4,948.5 4,949.9 #N/A #N/A 4,953.1 #N/A 4,954.0 4,953.3 4,954.2 4,951.5 4,952.2 4,949.6 4,949.8 4,948.3 4,949.8 4,950.5 4,951.8 #N/A #N/A 4,953.5 4,953.2 4,954.3 4,951.4 4,952.0 4,949.2 4,949.9 4,947.9 4,949.7 4,950.1 4,951.3 4,953.1 #N/A 4,953.6 4,952.7 4,954.0 4,951.3 4,951.6 4,948.9 4,950.0 4,948.3 4,949.3 #N/A #N/A 4,952.8 #N/A #N/A #N/A 4,953.4 4,953.6 4,954.8 4,952.8 4,953.2 4,954.4 4,953.6 4,953.9 4,955.5 4,951.1 4,951.3 4,952.6 4,951.4 4,951.3 4,952.2 4,949.0 4,948.8 4,949.8 4,949.7 4,949.3 4,950.8 4,947.9 4,947.7 4,949.4 4,949.5 4,949.7 4,950.9 4,950.0 #N/A #N/A 4,951.1 #N/A #N/A 4,952.3 #N/A #N/A #N/A 4,955.0 4,954.5 4,956.2 4,953.0 4,953.1 4,949.9 4,951.4 4,949.5 4,950.5 4,955.4 4,952.9 4,954.8 #N/A 4,954.6 4,954.4 4,956.5 4,952.6 4,953.0 4,949.7 4,951.1 4,949.7 4,949.9 4,950.9 4,952.0 4,955.3 #N/A 4,954.0 4,953.2 4,955.1 4,951.7 4,951.9 4,949.4 4,950.3 4,949.1 4,950.0 #N/A #N/A 4,954.6 #N/A 4,953.2 4,952.4 4,954.1 4,951.0 4,951.1 4,948.1 4,949.5 4,947.8 4,948.6 4,950.6 4,951.6 4,953.8 #N/A 4,953.0 4,952.5 4,953.9 4,950.9 4,951.0 4,948.0 4,949.2 4,947.5 4,948.7 4,949.6 4,950.6 4,953.5 #N/A 4,952.8 4,952.2 4,953.6 4,950.8 4,950.8 4,948.2 4,948.9 4,947.7 4,948.8 #N/A #N/A #N/A #N/A 4,952.9 4,952.0 4,953.7 4,950.9 4,950.6 4,948.2 4,948.8 4,947.8 4,948.7 #N/A #N/A 4,953.6 #N/A 4,953.3 4,952.4 4,953.4 4,950.5 4,951.0 4,948.3 4,948.9 4,947.5 4,949.1 4,949.2 4,950.2 4,953.1 #N/A 4,952.9 4,951.9 4,953.1 4,950.7 4,951.1 4,948.5 4,949.4 4,947.8 4,949.3 #N/A #N/A #N/A #N/A 4,953.0 4,951.7 4,952.9 4,950.3 4,951.2 4,948.2 4,948.4 4,948.0 4,949.2 4,949.3 4,949.4 4,953.1 #N/A 4,953.2 4,952.2 4,953.7 4,950.7 4,951.4 4,948.7 4,949.5 4,947.9 4,949.4 #N/A #N/A #N/A #N/A 4,954.1 4,953.3 4,954.6 4,952.1 4,952.2 4,949.3 4,950.4 4,948.6 4,950.1 #N/A #N/A #N/A #N/A #N/A 4,954.0 4,954.3 4,953.2 4,953.4 4,954.4 4,955.0 4,951.7 4,951.8 4,952.1 4,952.2 4,949.6 4,949.7 4,950.1 4,950.6 4,948.7 4,949.4 4,950.5 4,950.6 4,950.5 #N/A 4,951.5 #N/A 4,954.9 #N/A #N/A 4,953.9 4,953.1 4,954.8 4,951.5 4,951.6 4,948.8 4,949.9 4,948.7 4,949.5 #N/A #N/A #N/A #N/A 4,953.4 4,952.7 4,954.5 4,951.3 4,951.2 4,948.0 4,949.5 4,948.5 4,949.0 4,950.0 4,951.2 4,953.2 #N/A 4,953.6 4,952.4 4,954.3 4,951.0 4,951.4 4,948.4 4,949.8 4,948.7 4,948.9 #N/A #N/A #N/A #N/A 4,953.4 4,952.5 4,954.0 4,950.9 4,951.5 4,947.6 4,949.9 4,948.8 4,949.2 #N/A #N/A #N/A #N/A 4,953.3 4,952.3 4,953.7 4,951.0 4,951.2 4,947.7 4,949.7 4,948.6 4,949.3 #N/A #N/A #N/A #N/A 4,952.8 4,952.2 4,953.3 4,950.4 4,951.1 4,947.5 4,949.1 #N/A 4,949.1 4,953.5 4,950.7 4,952.6 #N/A 4,953.0 4,952.0 4,953.5 4,950.8 4,950.8 4,948.0 4,949.5 4,948.3 #N/A #N/A #N/A #N/A #N/A #N/A 4,952.9 4,953.3 4,951.8 4,952.5 4,953.4 4,953.9 4,950.5 4,951.0 4,950.7 4,951.2 4,947.8 4,948.3 4,949.1 4,949.4 4,947.9 4,948.3 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A 4,954.2 4,952.9 4,954.7 4,951.7 4,951.5 4,949.0 4,950.2 4,949.1 #N/A 4,949.5 4,950.7 4,952.5 #N/A 4,954.0 4,953.2 4,955.0 4,951.8 4,951.7 4,949.3 4,950.4 4,949.7 #N/A 4,950.1 4,950.9 4,952.9 #N/A #N/A 4,953.9 4,953.6 4,952.8 4,952.9 4,954.9 4,954.5 4,951.6 4,951.5 4,951.9 4,951.6 4,948.8 4,948.5 4,950.2 4,950.0 4,949.0 4,948.6 #N/A #N/A 4,950.0 4,950.0 4,951.1 4,951.2 4,952.8 4,952.9 #N/A 4,953.4 4,951.7 4,954.3 4,951.3 4,951.4 4,948.3 4,949.7 4,948.0 #N/A 4,946.1 4,950.9 4,952.9 #N/A #N/A 4,953.5 4,953.3 4,952.7 4,952.6 4,953.1 4,953.8 4,951.2 4,951.1 4,951.4 4,951.5 4,948.5 4,948.7 4,949.8 4,950.0 4,948.5 4,948.8 #N/A #N/A 4,949.7 4,949.7 4,950.9 4,950.9 4,952.8 4,952.8 #N/A 4,953.2 4,952.5 4,953.6 4,951.0 4,951.4 4,948.7 4,950.0 4,948.7 #N/A 4,949.6 4,950.8 4,952.7 - 13.4 -13.2 4,953.1 4,953.1 4,952.2 4,952.3 4,953.2 4,952.7 4,950.5 4,950.9 4,951.2 4,951.3 4,948.5 4,948.6 4,949.8 4,949.9 4,948.6 4,948.6 #N/A #N/A 4,949.3 4,949.4 4,950.5 4,950.6 4,952.4 4,953.5 -12.8 - 11.7 4,953.5 4,954.1 4,952.5 4,952.7 4,953.7 4,954.9 4,950.5 4,951.5 4,951.4 4,951.5 4,948.4 4,948.5 4,950.0 4,949.7 4,948.8 4,948.4 #N/A #N/A 4,949.4 4,949.7 4,950.5 4,950.7 4,952.4 4,951.4 -11.6 4,954.5 4,953.4 4,955.2 4,951.9 4,952.1 4,949.4 4,950.4 #N/A #N/A 4,950.0 4,950.7 4,953.0 #N/A 4,954.1 4,953.5 4,955.0 4,951.6 4,952.5 4,950.6 4,951.0 4,950.2 #N/A 4,950.1 4,951.2 4,953.2 -10.8 4,955.0 4,954.0 4,955.9 4,952.8 4,952.4 4,950.2 4,951.3 4,950.0 #N/A 4,950.9 4,952.0 4,953.8 -11.8 4,954.0 4,953.5 4,959.2 4,952.0 4,952.1 4,949.8 4,950.3 4,948.7 #N/A 4,950.5 4,951.8 4,953.8 -12.3 4,952.6 4,952.9 4,954.7 4,951.5 4,951.4 4,948.2 4,949.7 4,948.3 #N/A 4,950.1 4,951.4 4,953.3 -13.1 4,953.6 4,952.8 4,954.5 4,951.3 4,951.4 4,948.3 4,949.7 4,948.3 #N/A 4,949.8 4,951.1 4,953.0 - 13.0 4,953.4 4,952.7 4,953.6 4,951.2 4,951.6 4,948.8 4,950.3 4,948.9 #N/A 4,949.9 4,951.2 4,953.0 - 13.2 4,953.2 4,952.5 4,953.5 4,951.0 4,951.3 4,948.6 4,949.9 4,948.8 #N/A 4,949.6 4,950.8 4,952.8 -13.4 -12.4 -12.9 4,953.1 4,952.1 4,953.8 4,952.2 4,952.2 4,952.5 4,953.3 4,953.2 4,953.8 4,950.8 4,950.7 4,951.0 4,951.2 4,951.1 4,951.7 4,948.4 4,948.5 4,949.2 4,949.7 4,949.7 4,950.3 4,948.6 4,948.6 4,949.3 #N/A #N/A #N/A 4,949.3 4,949.2 4,949.4 4,950.6 4,950.4 4,950.5 4,952.5 4,952.3 4,952.4 -12.0 4,953.7 4,952.9 4,954.4 4,951.4 4,951.5 4,948.5 4,949.8 4,948.5 #N/A 4,949.6 4,950.6 4,952.6 -12.3 4,953.8 4,952.8 4,954.4 4,951.5 4,951.5 4,948.4 4,950.0 4,948.9 #N/A 4,949.6 4,950.5 4,952.7 -11.8 4,954.2 4,953.4 4,954.8 4,951.6 4,952.0 4,948.6 4,950.7 4,949.7 #N/A 4,950.0 4,951.1 4,953.0 -12.4 4,953.9 4,952.9 4,954.4 4,951.4 4,952.0 4,948.5 4,950.7 4,949.6 #N/A 4,950.0 4,951.2 4,953.1 -13.0 4,953.1 4,952.4 4,953.8 4,950.9 4,951.2 #N/A 4,949.6 4,948.4 #N/A 4,949.5 4,951.0 4,952.7 -12.9 4,953.3 4,952.4 4,953.9 4,950.9 4,951.4 4,948.2 4,949.4 4,948.2 #N/A 4,949.3 4,950.7 4,952.6 -13.0 4,952.5 4,952.0 4,953.8 4,950.7 4,951.0 4,948.2 4,949.3 4,943.6 #N/A 4,949.2 4,950.4 4,952.2 -13.2 4,952.6 4,951.9 4,953.2 4,950.6 4,951.1 4,948.5 4,949.6 4,944.0 #N/A 4,949.2 4,950.5 4,952.2 -13.4 4,952.4 4,951.8 4,953.0 4,950.5 4,951.1 4,948.3 4,949.6 4,943.9 #N/A 4,949.1 4,950.6 4,952.2 -13.5 4,952.5 4,951.8 4,953.0 4,950.5 4,951.0 4,948.4 4,949.5 4,943.9 #N/A 4,949.0 4,950.3 4,952.0 -13.4 4,952.5 4,951.8 4,952.9 4,950.5 4,951.0 4,948.5 4,949.7 4,945.8 #N/A 4,949.0 4,950.2 4,951.9 -12.6 4,953.3 4,952.2 4,953.6 4,950.8 4,951.3 4,948.8 4,950.0 4,946.2 #N/A 4,949.2 4,950.4 4,952.0 -11.8 -11.8 4,953.5 4,953.4 4,952.7 4,952.9 4,954.7 4,954.8 4,951.4 4,951.7 4,951.6 4,951.8 4,948.9 4,948.5 4,949.9 4,949.9 4,944.5 4,944.0 #N/A #N/A 4,949.6 4,950.0 4,950.8 4,951.1 4,952.5 4,953.0 -11.0 #N/A #N/A 4,955.0 #N/A #N/A 4,953.4 #N/A #N/A 4,955.5 #N/A #N/A 4,952.2 #N/A #N/A 4,952.6 #N/A #N/A 4,950.5 #N/A #N/A 4,951.0 #N/A #N/A 4,946.5 #N/A #N/A #N/A #N/A #N/A 4,950.3 #N/A #N/A 4,951.4 #N/A #N/A 4,953.2 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Top a MW -15 VIW-16/161 MW -17 4,948.1 4,954.6 4,949.6 4,947.4 4,954.4 4,950.8 4,947.2 4,954.5 4,951.5 4,948.1 4,955.0 4,952.1 4,949.0 4,955.2 4,953.1 4,950.1 4,955.3 4,953.9 4,950.9 4,955.1 4,954.8 4,951.3 4,955.1 4,955.5 4,951.6 4,955.1 4,955.8 4,952.0 4,955.2 4,956.3 4,951.8 4,955.1 4,956.3 4,951.3 4,954.9 4,956.2 4,951.0 4,954.8 4,955.9 4,950.8 4,954.8 4,955.8 4,950.6 4,954.8 4,955.7 4,949.4 4,955.1 4,956.3 4,949.4 4,955.0 4,956.3 4,950.4 4,955.3 4,956.3 4,949.8 4,955.2 4,956.3 4,949.0 4,955.0 4,956.3 4,948.3 4,955.0 4,956.2 4,949.5 4,955.0 4,956.4 4,948.5 4,954.9 4,956.2 4,946.8 4,954.8 4,956.1 4,946.6 4,954.8 4,956.7 4,945.2 4,954.7 4,955.7 4,944.4 4,955.0 4,955.7 4,945.9 4,955.1 4,955.6 4,948.5 4,954.4 #N/A 2003-10/2006 11/2006 -current MW -1 MW -2B MW -3 MW -4 MW -5 MW -6 MW -7 MW -8 4,969.4 4,964.4 4,965.4 4,964.2 4,966.5 4,963.4 4,962.3 4,962.0 4,969.4 4,965.4 4,964.2 4,966.5 4,962.3 4,962.0 4,959.8 4,949.4 4,955.0 4,955.8 4,949.5 4,955.0 4,956.0 4,949.0 4,955.0 #N/A 4,948.3 #N/A 4,956.1 4,949.5 #N/A #N/A 4,949.6 #N/A 4,956.2 4,947.9 4,954.4 4,956.0 4,952.2 #N/A #N/A 4,951.2 4,955.7 4,956.2 4,951.4 4,952.4 #N/A 4,950.9 4,955.2 4,955.6 4,951.1 4,955.6 4,955.8 4,951.4 4,955.4 4,957.0 4,951.7 4,955.4 4,956.8 4,951.4 4,955.3 4,957.3 4,952.9 4,955.4 4,956.2 4,953.8 4,955.4 4,955.6 4,952.6 4,955.4 4,956.5 4,951.9 4,955.3 4,956.1 4,951.4 4,955.2 4,956.0 4,955.2 4,955.8 _4,950.8 4,950.9 4,955.0 4,955.6 4,951.6 4,955.5 4,955.6 4,951.6 4,955.4 4,955.8 4,954.9 4,955.5 4,956.7 4,955.3 4,956.8 _4,954.4 4,955.3 4,956.2 _4,951.8 4,951.5 4,955.2 4,956.2 4,951.5 4,955.1 4,956.0 4,950.3 4,955.1 4,956.2 4,951.0 4,955.4 #VALUE! 4,950.4 4,955.2 4,955.8 4,949.4 4,955.1 4,955.8 4,950.6 4,954.8 4,955.7 4,949.8 4,955.5 4,955.6 4,949.7 4,956.0 4,955.6 #N/A #N/A 4,956.2 4,949.1 4,956.1 4,957.1 4,948.0 4,956.0 4,956.4 4,946.4 4,955.7 4,955.8 4,948.3 4,955.7 4,955.8 4,945.8 4,955.1 4,956.0 4,945.3 4,955.0 4,955.4 4,944.8 4,954.7 4,954.9 4,944.5 4,954.5 4,954.4 4,944.5 4,954.6 4,955.1 4,944.5 4,955.2 4,955.8 4,945.6 4,955.9 4,955.4 4,950.2 4,956.0 4,955.8 4,955.7 4,955.5 4,956.0 4,946.5 4,955.3 4,955.4 4,945.0 4,955.2 4,954.8 4,944.5 4,955.4 4,953.8 4,944.4 4,955.0 4,954.9 4,947.4 4,954.6 4,956.0 4,949.1 4,955.0 4,956.7 4,949.9 4,955.1 4,955.6 4,950.3 4,955.1 4,956.0 4,951.0 4,955.5 4,956.4 4,951.1 4,955.7 4,956.8 4,958.4 4,955.6 4,956.9 4,957.1 4,955.7 4,956.6 4,956.5 4,955.7 4,956.1 4,955.7 4,955.5 4,955.8 4,952.9 4,955.4 4,955.0 4,952.5 4,955.2 4,955.9 4,952.2 4,955.2 4,956.4 4,951.8 4,955.2 4,955.8 4,951.8 4,955.2 4,955.6 4,955.3 4,955.2 _4,951.7 4,952.0 4,955.5 4,955.8 4,952.1 4,955.4 4,956.0 4,952.0 4,955.3 4,955.7 _ 4,952.2 4,955.3 4,955.8 4,952.1 4,955.3 4,955.6 4,952.0 4,955.3 4,956.3 4,951.9 4,955.2 4,956.0 4,951.9 4,955.2 4,955.6 4,951.8 4,955.1 4,954.9 4,952.3 4,955.1 4,955.5 4,953.2 4,955.0 4,955.6 4,953.3 4,955.1 4,955.6 4,953.5 4,955.4 4,955.7 4,953.8 4,954.4 4,955.7 4,953.9 4,955.4 4,955.9 #N/A #N/A 4,956.0 #N/A 4,955.3 4,956.2 4,953.3 4,955.5 #N/A 4,953.8 4,955.3 4,956.4 #N/A #N/A 4,955.9 4,952.4 4,955.2 4,956.0 4,952.3 4,955.2 4,955.8 4,951.7 4,955.2 4,955.7 4,951.2 4,955.1 4,955.6 4,951.6 4,955.5 4,955.2 4,951.8 4,955.6 4,955.7 4,952.8 4,955.6 4,956.5 4,953.5 4,955.6 4,955.9 4,954.7 4,955.6 4,956.3 4,952.9 4,955.4 4,955.9 #N/A #N/A 4,956.2 4,952.8 4,955.3 4,956.1 4,952.6 4,955.3 4,956.0 4,952.5 4,955.3 4,955.8 4,952.1 4,955.3 4,955.6 4,951.7 4,955.2 4,955.5 #N/A #N/A 4,955.8 #N/A #N/A 4,957.0 4,954.3 4,956.0 4,957.9 4,954.8 4,956.3 4,957.7 4,954.4 4,955.8 4,957.0 4,953.9 4,955.4 4,956.3 4,953.5 4,955.4 4,956.2 #N/A #N/A 4,956.0 4,953.1 4,955.3 4,955.8 4,953.6 4,955.3 4,955.2 #N/A #N/A 4,955.7 4,954.2 4,955.2 4,955.3 #N/A #N/A 4,955.5 #N/A #N/A 4,956.6 4,955.2 4,955.9 4,957.2 4,955.5 4,955.6 4,957.2 #N/A #N/A 4,956.4 4,955.0 4,955.4 4,956.1 4,954.0 4,955.3 4,956.3 #N/A #N/A 4,956.0 #N/A #N/A 4,956.1 _ 4,952.2 4,955.0 4,955.5 #N/A #N/A 4,956.0 4,951.5 4,955.2 4,955.8 _ #N/A #N/A 4,955.4 #N/A #N/A 4,955.9 4,952.8 4,955.6 4,955.8 #N/A #N/A 4,956.3 #N/A #N/A 4,956.1 4,952.7 4,955.5 4,956.2 #N/A #N/A 4,956.1 #N/A #N/A 4,956.3 #N/A #N/A 4,955.9 4,952.4 4,955.2 4,955.6 #N/A #N/A 4,955.7 #N/A #N/A 4,955.2 #N/A #N/A 4,955.6 4,952.0 4,958.0 4,955.7 4,952.3 4,955.3 4,956.1 4,952.5 4,955.4 4,956.0 4,952.6 4,955.4 4,956.3 4,952.3 4,955.4 4,956.3 4,952.3 4,955.5 4,956.2 4,952.2 4,955.3 4,956.2 4,952.2 4,955.2 4,956.1 4,951.6 4,955.2 4,955.8 4,951.8 4,955.2 4,955.9 4,951.5 4,955.2 4,955.8 4,953.7 4,955.4 4,955.8 4,951.6 4,955.5 4,955.9 _ 4,952.6 4,955.5 4,956.0 _ 4,953.3 4,955.6 4,956.6 4,955.5 4,955.5 4,956.4 4,954.5 4,955.4 4,956.3 4,953.7 4,955.5 4,956.4 4,952.7 4,953.3 4,956.2 _ 4,954.3 4,955.2 4,956.1 4,951.9 4,955.2 4,956.0 4,951.8 4,955.1 4,955.9 4,955.4 4,955.8 _4,952.3 4,953.5 4,955.5 4,955.8 4,952.5 4,955.5 4,955.8 4,952.8 4,955.5 4,955.9 4,955.1 4,955.5 4,955.9 4,954.5 4,954.9 4,955.2 4,954.2 4,955.4 4,956.2 4,953.3 4,955.2 4,956.2 4,951.8 4,955.1 4,955.9 4,951.7 4,955.0 4,955.9 4,951.6 4,955.0 4,955.7 4,951.1 4,954.9 4,955.6 4,951.2 4,955.1 4,955.6 4,952.8 4,955.4 4,955.6 4,953.1 4,955.4 4,955.8 4,952.6 4,955.3 4,956.2 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A if Riser Elevation MW -9 MW -10 MW -11 W-12/12/ MW -13 MW -14 MW -15 W-16/16/ MW -17 4,959.8 4,959.7 4,959.3 4,962.7 4,958.4 4,959.1 4,961.0 4,962.1 4,966.8 4,959.7 4,959.3 4,962.7 4,962.0 4,959.1 4,961.0 4,962.1 4,963.1 4,966.8 Tucson South Underdrain Plans CONSTRUCTION PLANS FOR TUCSON SOUTH UNDERDRAIN ADAMS COUNTY, COLORADO SITE 1I - TUCSON STREET HIGHWAY PROJECT LOCATION MAP6.%%% SCALE: I" = 1000' CORTEZ 0 STEAMBOAT SPRINGS oKONTROSE DLORA00 GLENWOOD SPRINGS O DURANGe3 r IyER ALAMOSA0 i LOVE'ANg LONG ..Io NT BOULDER STERLING FT COLLIE'S REE_EY ,►� ENVER 1 FT. MORGAN oICOLORAD0 SPRINGS CANON CITY 2 PUEBLO 'GP, ACS' LA JUNTA TRINIDAD 0 RIVER LAMAR NORTH STATE OF COLORADO PROJECT LOCATION MAP N Sheet List Table SHEET NUMBER SHEET TITLE 1 Cover 2 LEGEND NOTES 3 EX CONDITIONS 4 SITE PLAN S P&P S1 6 P&P S2 7 P&P W1 8 P&P W2 9 P&P W3 10 P&P W4 11 DETAILS PREPARED FOR: AGGREGATE INDUSTRIES 1687 COLE BLVD. SUITE 300 GOLDEN. CO 80401 214-213-7859 PREPARED BY: CIVIL RES'IVURCES, LLC 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303 833 1416 CERTIFICATION: I HEREBY CERTIFY THAT THESE PLANS FOR THE CONSTRUCTION THE TUCSON SOUTH UNDERDRAIN WERE PREPARED UNDER MY DIRECT SUPERVISION FOR THE OWNERS THEREOF. BY: DATE: BRAD L. HAGEN. P.E. COLORADO. P.E. #32982 AGGREGATE INDUSTRIES DOES HEREBY ACCEPT AND APPROVE THESE PLANS FOR THE CONSTRUCTION OF A SLURRY WALL ON THE TRACT DESCRIBED WITHIN. BY DATE: AUTHORIZED REPRESENTATIVE AGGREGATE INDUSTRIES Know weal I. Car behove you dig CIVIL RES1DURCES 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 214-213-7869 (p) KIMBERLY DENNIS REVISIONS NO DESCRIPTION DATE FOR BID DESIGNED BY: ,GL DRAWN BY: EB CHECKED BY: GL DATE --:June. 2021 SCALERS NOTED AS NOTED JOB NO.: 297.001.09 DWG NAME;UNDERDRAIN_COVER AND NOT COVER SHFFT 1 S.DWG CIVIL RESURCES NOTES. GENERAL 1 ALL CONSTRUCTION SHALL CONFORM TO THE DRAWINGS AND SPECIFICATIONS AND SHALL NOT BE CHANGED WITHOUT THE PRIOR WRITTEN APPROVAL OF THE OWNERS REPRESENTATIVE 2 THE CONTRACTOR IS RESPONSIBLE FOR CONTROL OF POLLUTION SURFACE WATER AND EROSION THROUGHOUT THE DURATION OF THE CONTRACT 3 THE CONTRACTOR IS RESPONSIBLE FOR THE FOLLOWING A ANY PERMITS OR LICENSES REQUIRED FOR CONSTRUCTION B PROPER NOTIFICATION OF ALL NECESSARY AGENCIES PRIOR TO CONSTRUCTION AND FOR REQUIRED INSPECTIONS 4 THE EXACT LOCATION OF ANY UTILITY LINES AND COORDINATION OF ANY DISRUPTION IN SERVICES WITH AFFECTED PARTIES IS THE RESPONSIBILITY OF THE CONTRACTOR 5 THE DESIGN ENGINEER IS TO BE NOTIFIED BY THE CONTRACTOR OF ANY DISCREPANCY OR CONFLICT PRIOR TO CONTINUING CONSTRUCTION 6 ALL LOCATIONS AND ELEVATIONS SHALL BE FIELD VERIFIED PRIOR TO CONSTRUCTION NOTIFY THE ENGINEER OF ANY FEATURES NOT SHOWN ON THESE DRAWINGS WHICH ARE THOUGHT TO POTENTIALLY IMPACT CONSTRUCTION 7 ALL CONCRETE SHALL BE COMPLETED AND ALLOWED TO CURE SUFFICIENTLY PRIOR TO COMMENCING BACKFILL IN ACCORDANCE TO THE PROJECT SPECIFICATIONS EARTHWORK 1 THE SITE SHALL BE CLEARED AND GRUBBED PRIOR TO ANY EXCAVATION WOODY MATERIAL IS TO BE CHIPPED AND STORED WITH TOPSOIL 2 TOPSOIL SHALL BE TEMPORARILY STOCKPILED WITHIN THE WORK AREA IN SUCH A WAY AS TO AVOID EROSION LOSSES TEMPORARY SEEDING MAY BE REQUIRED 3 FINE GRADING OF THE FINISHED SITE (I E TOP SOILED SURFACE) IS NOT REQUIRED _ UNTIL SEEDING HOWEVER ALL AREAS WHERE EARTHWORK IS CONDUCTED SHALL BE RELATIVELY SMOOTH AND UNIFORM RUTS, LARGE CLUMPS AND ROUGH AREAS SHALL BE SMOOTHED BY THE CONTRACTOR TO THE SATISFACTION OF THE OWNER BY USE OF HARROW OR DISC TRASH, DEBRIS, AND STONES LARGER THAN 6 INCHES ARE ALL TO BE REMOVED AND DISPOSED OF PROPERLY 4 THE UPPER 2 INCHES OF SOIL (MINIMUM) IN AREAS TO BE SEEDED SHALL BE LOOSE AND FRIABLE AND SUITABLE FOR SEEDING MEASURES SHALL BE TAKEN BY THE CONTRACTOR TO ACHIEVE THIS CONDITION 5 CONTROL OF GROUNDWATER AND SURFACE WATER NECESSARY TO CONDUCT THE EARTHWORK IS THE RESPONSIBILITY OF THE CONTRACTOR ADDITIONAL GROUNDWATER CONTROLS OTHER THAN THOSE SHOWN AS PERMANENT ON THE PLANS WILL BE NECESSARY TO COMPLETE THE WORK 6 CONTRACTOR IS RESPONSIBLE FOR ALL DUST CONTROL REQUIRED WATER IS PERMISSIBLE TO USE AND AVAILABLE ON THE SITE CHEMICAL AGENTS FOR DUST CONTROL MUST BE APPROVED PRIOR TO USE 7 ANY MODIFICATIONS TO THE ELEVATIONS, GRADES AND EARTHWORK SHALL BE APPROVED AHEAD OF TIME BY THE OWNERS ENGINEER ALL CHANGES ARE TO BE REFLECTED ON THE CONTRACTORS RED LINED AS BUILT DRAWINGS 8 THERE SHALL BE NO FILL PLACED ABOVE THE ORIGINAL GROUND SURFACE IN THE FLOODWAY AS DELINEATED IN THESE PLANS DETAILS AND SECTIONS SITE ACCESS AND PROTECTION 1 CONTRACTOR SHALL USE ONLY DESIGNATED ACCESS ROUTES TO THE PROJECT SITE AND SHALL REPAIR AREAS DAMAGED OUTSIDE OF THE DESIGNATED CONSTRUCTION ZONE FOR THE PROJECT AT THEIR OWN EXPENSE 2 CONTRACTOR SHALL NOT OPERATE EQUIPMENT, STORE MATERIALS/SUPPLIES OR OTHERWISE DISTURB WETLANDS AND SENSITIVE AREAS IN OR ADJACENT TO THE PROJECT AREA CONTRACTOR WILL BE RESPONSIBLE FOR ANY IMPACTS FROM THEMSELVES AND THEIR SUBCONTRACTORS 3 CONTRACTOR IS RESPONSIBLE FOR LOCATING AND MARKING ALL UTILITIES IN THE PROJECT SITE AND FOR PROTECTING ALL UTILITIES DURING CONSTRUCTION DAMAGED UTILITIES SHALL BE REPAIRED AT THE CONTRACTORS EXPENSE 4 CONTRACTOR IS RESPONSIBLE FOR HAULING AND PLACING OF ALL EXCESS MATERIALS FROM THE SITE AS DIRECTED BY THE ENGINEER 5 THE CONTRACTOR IS TO LIMIT ACCESS TO THE SITE BY UNAUTHORIZED PERSONS WITH A SECURITY FENCE AND CLEARLY MARK THE CONSTRUCTION ZONE UTILITY 1 THE UTILITY INFORMATION SHOWN IS PLOTTED FROM THE BEST AVAILABLE DATA 2 THE CONTRACTOR IS RESPONSIBLE FOR MAKING THEIR OWN DETERMINATION AS TO THE TYPE AND LOCATION OF UTILITIES AS MAY BE NECESSARY TO AVOID DAMAGE THERETO 3 THE CONTRACTOR IS TO CONTACT THE UTILITY NOTIFICATION CENTER OF COLORADO AT 1 850 922 1987 FOR UTILITY LOCATIONS AT LEAST 2 BUSINESS DAYS, NOT INCLUDING THE DAY OF ACTUAL NOTICE PRIOR TO EXCAVATING 4 THE CONTRACTOR SHALL COORDINATE WITH UTILITY COMPANY FOR ANY UTILITIES THAT NEED RELOCATING BORING 1 BORE LOG LOCATIONS AND DEPTHS ARE APPROXIMATE AND BASED ON THE ORIGINAL TETRA TECH BORE LOGS SHOWN IN APPENDIX B OF THE SLURRY WALL DESIGN REPORT 2 GROUNDWATER LEVELS WILL FLUCTUATE DETAIL TITLE (X) uo (p IEPI) DETAIL CALL OUTS DETAIL TITLE SECTION - SECTION TITLE (X) v® SECTION CUT SYMBOLS SHORT SECTION CUT SYMBOLS — LONG SECTION TITLE 1 LEGEND 5740— X G _ W _ RW _ IR _ OH _ FO _ SS _ G _ W _ RW IR _ OH FO SS OH PROPERTY LINE EXISTING MAJOR CONTOUR EXISTING MINOR CONTOUR EXISTING BARBED WIRE FENCE EXISTING CHAINUNK FENCE EXISTING EASEMENT EXISTING GAS LINE EXISTING WATER LINE EXISTING STORM SEWER EXISTING RAW WATER LINE EXISTING IRRIGATION EXISTING BURIED ELECTRICAL EXISTING OVERHEAD ELECTRICAL EXISTING FIBER OPTIC EXISTING SANITARY SEWER MONITORING WELLS EXISTING WATER VALVE EXISTING BOLLARD WATER MARKER EXISTING UTILITY POLE EXISTING OVERHEAD UTILITY LINES EXISTING BURIED UTILITY LINES PROPOSED MAIOR CONTOUR (57J6I PROPOSED MINOR CONTOUR e 1 s PROPOSED SLOPE AND DIRECTION ( I L," A ' PROPOSED UNDERDRAIN DETAIL IDENTIFICATION NUMBER DRAWING NUMBER WHERE DETAIL IS SHOWN DRAWING NUMBER WHERE DETAIL IS TAKEN 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303 833 1416 WWW CIVILRESOURCES COM AGGREGATE INDUSTRIES 1687 COLE BLVD SUITE 300 GOLDEN CO 80401 219 212 7859 (P1 KIMBERLY DENNIS TUCSON SOUTH UNDERDRAIN ADAMS COUNTY, COLORADO REVISIONS NO DESCRIPTION DATE FOR BID DESIGNED BY .L._ DRAWN BY la_ CHECKED BY J� JOB NO 297,001 09 DWG NAMF.UNDERDRAIN COVER AND NOT DATE June. 2021 SCALERS NOTED AS NOTED LEGEND NOTES SHEET 2 S DWG MW -14 30' TODD CREEK UTILITY & WATERLINE EASEMENT - 1 1 133d1S NOSOf.L _ - \ APPROX 75' WIDE PSCO ROW _ EASEMENT - -t.. � - N _`- TANK �\\� LY�Y OF X14 4746. GAS WELL CONCRETE EX/STING DITCH N APPROXIMATE SUPPLEMENTAL FINES BORROW AREA FOR SLURRY WALL EXISTING PUMP HOUSE TODD CREEK L_ EASEMENT GREAT WESTERN OPERATING COMPANY, LLC OIL WELL/TANK AND SEPARATOR (PLUGGED AND ABANDONED) CITY OF AURORA WATERLINE EASEMENT BRIGHTON DIT H EASEMENT AND/OR ROW 30' WEST AND 50' EAST OF DESCRIBED CENTERLNE 10' CULVERT EASEMENT EXISTING PUMP LEGEND EXISTING CONTOUR PERMIT BOUNDARY EX 100 YR FLOODPLAIN EXISTING EDGE OF WATER WETLANDS NON -JURISDICTIONAL WETLANDS BUFFER TETRA TECH BOREHOLE TETRA TECH MONITORING WELL TEST PIT BUSH/PLANT ELECTRICAL TRANSFORMER MISCELLANEOUS MANHOLE (ELEC, IRRIGATION, TELECOM, ETC) WATER MANHOLE SANITARY MANHOLE WATER WELL DRAINAGE STRUCTURE/MANHOLE Know what's below. Cali before you dig. CIVIL RES'URC I ', 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 W W W.CIVILRESOURCES.COM NO AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 214 -213 -?859 (p) KIMBERLY DENNIS REVISIONS DESCRIPTION DATE FOR BID DESIGNED BY: LIB DRAWN BY: EJB CHECKED BY: a JOB NO.: 297.001. 09 DATE: June, 2D21 SCALEAS NOTED AS NOTED DWG NAME:UNDERDRAIN EX CONDITIONS.DWG EX CONDITIONS SHEET ►'ems 0 THE -31 THE2A I EXISTING RESERVOIR (APPROXIMATE LOCATION) 30' TODD CREEK UTILITY & / WATERLINE EASEMENT l 4' 0 MANHOLE STA:24+04.08 INV IN (8"):4951.48 INN OUT (8"):4951.48 / ---- / / C ---- ,_ i i /' ...0* i � /i i - / -- .0' / -- / �� / / -- / J - -- - I - -. - / ••••• -••"'-•� - _ / 4 I I MW -13 TP12 ■ m THE2 • I _ 8" MECHANICALLY RESTRAINED CAP STA:32+67.60 INV IN (8"):4950.00 THW5 TP2 8" CLEANOUT STA:30+30.71 INV IN (8"):4950.40 INV OUT (8"):4950.40 FUTURE SLURRY WALL WEST UNDERDRAIN ALIGNMENT 4' 0 MANHOLE STA:27+03.80 INV IN (8"):4950.96 INV OUT (8'):4950.96 8" CLEANOUT STA:25+15.48 INV IN (8"):4951.29 INV OUT (8"):4951,29 8" CLEANOUT STA:22+20.75 INV IN (8"):4951.79 INV OUT (8"):4951.79 F Jr 's H EAST CELL m THW4 4' 0 MANHOLE STA:20*17.79 [NV IN (8"):4952.30 INV OUT (8' ):4952.30 8" CLEANOUT STA:18+46.25 INV IN (8"):4952.93 ie INV OUT (8"):4952.93 THE1 e x ( ® MW -12 �r --4. TUCSON S TUCSON STREET WEST CELL 4' 0 MANHOLE STA:15+ 19.89 INV IN (8"):4954.12 INV OUT (8"):4954.12 THW9�� THW9A y 4' 0 MANHOLES STA:12+79.87 INV IN (8' ):4955.00 . INV OUT (8'):4955.00 APPROX 75' WIDE PSCO ROW EASEMENT / J _MW -4) _ C._ 6" MECHANICALLY RESTRAINED CAP STA:15+95.72 INV IN (6"):4953.00 4' 0 MANHOLE 5TA:13+93.91 INV IN (6"):4953.24 [NV OUT (6"):4953.24 6" CLEANOUT STA:11 +66.67 INV IN (6"):4953.50 INV OUT (6"):4953.50 FUTURE SCREENING BERM FUTURE 5 SCREENING BERM / CITY OF AURORA WATERLINE EASEMENT t\ 0 TP18 60' ROW THE14 8" CLEANOUT AND 8" TO 6" REDUCER STA:10+42.95 INV IN (6"):4955.37 INV OUT (8"):4955.37 6" CLEANOUT STA:8+31.39 INV IN (6"):4955.70 INV OUT (6"):4955.70 4' 0 MANHOLE .STA:6+38.18 INV IN (6"):4956.00 INV OUT (6"):4956.00 -- THE13 TP20 ■ cccc, 0 W K W W ct 0 0 -4 FUTURE SLURRY WALL 6" CLEANOUT STA:10+20.19 INV IN (6"):4953.68 \ \ ` INV OUT (6"):4953.68 SOUTH UNDERDRAIN ALIGNMENT 4' 0 MANHOLE STA:8+01.91 INV IN (6"):4953.93 INV OUT (6"):4953.93 6" CLEANOUT STA:6+44.60 INV IN (6"):4954.12 INV OUT (6"):4954.12 4' 0 MANHOLE STA;4+58.58 INV IN (6"):4954.69 INV OUT (6"):4954.69 6" CLEANOUT STA:1 +64.72 INV IN (6"):4955.59 INV OUT (6"):4955.59 4' 0 MANHOLE STA :0100.18 INV OUT (6"):4956.10 6" CLEANOUT 5TA:4+17..57 INV IN (6"):4956.35 INV OUT (6"):4956.35 6" CLEANOUT - \ STA:1+76.36,„.- \• INV IN (6"):4956.72 N % INV OUT (6"):4956.72--1 1 -. _74 i� 4' O MANHOLE ' 4 " STA:0+00.18 36- INV OUT (6");x957.00'•-- ?� TODD CREEK EASEMENT BRIGHTON DITCH EASEMENT AND/OR ROW 30 WEST AND 50' EAST OF DESCRIBED CENTERLINE 10' CULVERT EASEMENT TY OF AURORA WATERLINE ASEMENT P 1 40' WIDEN/ 1 EAS MENT TO PSCO C 25' ACCESS EASEMENT FOP CITY OF AURORA 3 • • I I ) 1.• 1 r J LEGEND 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] 6 9 • K5� EXISTING CONTOUR PERMIT BOUNDARY EFFECTIVE 100-YR FLOODWAY EX 100 YR FLOODPLAIN EXISTING EDGE OF WATER WETLANDS FUTURE SLURRY WALL PLATFFRORM NON -JURISDICTIONAL WETLANDS BUFFER TETRA TECH BOREHOLE TETRA TECH MONITORING WELL TEST PIT BUSH/PLANT PUMP ELECTRICAL TRANSFORMER MISCELLANEOUS MANHOLE (ELEC, IRRIGATION, TELECOM, ETC) WATER MANHOLE SANITARY MANHOLE WATER WELL DRAINAGE STRUCTURE/MANHOLE NOTES: 1. CONTRACTOR TO CONSTRUCT SLURRY WALL PLATFORM PRIOR TO CONSTRUCTING UNDERDRAIN. NORTH 0 75 Ian) Know what's below. Call before you dig. (. I\11 I:l-.'I. ... I l 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 W. CI VILRESOURCES.COM WWW.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 214-213-7859 (p) KIMBERLY DENNIS O O Q f O E. zD O I-4 < O _ V) Q u Z n W z O u z O D 0 Q REVISIONS NO DESCRIPTION DATE FOR BID DESIGNED BY: GL DATE: July, 2021 DRAWN BY: FB SCALEAS NOTED CHECKED BY: GL AS NOTED JOB NO.: 297.001.09 DWG NAMF:UNDERDRAIN SITE PLAN.DWG SITE PLAN SHEET 4 1 • -WEST PROFILE SEE SHEt9-Z 4' 0 MANHOLE STA:0+00.18 INV OUT (6"):4956.10 6" CLEANOUT STA: 1+64.72 INV IN (6"):4955.59 INV OUT (6"):4955.59 N SLURRY WALL PLATFORM - CONSTRUCT PRIOR TO UNDERDRAIN SOUTH UNDERDRAIN ALIGNMENT 4' 0 MANHOLE STA:4+58.58 INV IN (6"):4954.69 INV OUT (6"):4954.69 FUTURE SLURRY WALL 6" PERFORATED HDPE PIPE (DOUBLE WALL) PLAN - SOUTH UNDERDRAIN N N N 6" CLEANOUT STA:6+44.60 INV IN (6"):4954.12 INV OUT (6"):4954.12 N N N FUTURE SCREENING BERM I 4' 0 MANHOLE STA:8+01.91 INV IN (6"):4953.93 INV OUT (6"):4953.93 CITY OF AURORA WATERLINE EASEMENT N N 6" CLEANOUT STA:10+20.19 INV IN (6"):4953.68 INV OUT (6"):4953.68 Know what's below. Call before you dig. 4970' 4965 4960' 4955' 4950' 4945' 4 0 MANHOLE STA:0+00.18 OFF:0.00 RIM:4962.54 INV OUT (6"):4956.10 CONSTRUCT SLURRY WALL PLATFORM PRIOR TO CONSTRUCTING UNDERDRAIN 4'0 MANHOLE STA:4+58.58 OFF:0.OOL RIM:4963.07 WV IN (6"):4954.69 INV OUT (6"):4954.69 FUTURE SCREEN BERM ----------------------------- ----------------------------------- 164.5' OF 6" PERF. HDPE (0.) 0.31°/u (DOUBLE WALL) CLEANOUT STA:1+64.72 OFF: -0.01L SURFACE EL: 4962.99 INV IN (6"):4955.59 INV OUT (6"):4955.59 262.3' OF 6" PERF. HDPE 0.31% (DOUBLE WALL) 31.5 OF 6 PERF. HDPE C' 0.31% (DOUBLE WALL) 186.0' OF 6" PERF. HDPE 0.31% (DOUBLE WALL) CLEANOUT STA:6+44.60 OFF:0.00L SURFACE EL: 4963.12 INV IN (6"):4954.12 INV OUT (6"):4954.12 40.4' OF 6 PERF. HOPE 4 0.12% (DOUBLE WALL) 34.5' OF 6" PERF. HDPE @ 0.12% r(DOUBLE WALL) FUTURE SCREEN BERM -\\1/4 4' 0 MANHOLE STA:8+01.91 OFF:0.00 RIM:4963.16 INV IN (6"):4953.93 INV OUT (6"):4953.93 / i 82.4' OF 6" PERF. HDPE 0.12% (DOUBLE WALL) 218.3' OF 6" PERF. HDPE (4+ 0.12% (DOUBLE WALL) -0+50 0+00 1+00 2+00 3+00 4+00 5+D0 PROFILE - SOUTH UNDERDRAIN 6+00 7+00 8+00 9+00 4975' 4970' 4965' 4960' 4955' 4950' 4945' 10+00 a NORTH 0 20 40 ( IP= Mi 4 2 0 Civil RES"URCES 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80S04 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 214-711-7859 (p) KIMBERLY DENNIS REVISIONS NO DESCRIPTION DATE FOR BID DESIGNED BY: GL. DRAWN BY: FB CHECKED BY: a DATE: July, 2021 SCALERS NOTED AS NOTED JOB NO.: 297.001.09 DWG NAME:UNDERDRAIN SITE PLAN.DWG SOUTH UNDERDRAIN PNP 1 SHEET 5 1 Know what's below. Call before you dig. 0 0 0 LI , 4975' 4970' 4965' 4960' 4955' 4950' 4945' 6" CLEANOUT STA:10+20.19 INV IN (6°):4953.68 INV OUT (6"):4953.68 SLURRY WALL PLATFORM - CONSTRUCT PRIOR TO UNDERDRAIN ` 6" PERFORATED HDPE PIPE / (DOUBLE WALL) SOUTH UNDERDRAIN ALIGNMENT FUTURE SCREENING BERM 6' CLEANOUT STA:11+66.67 INV IN (6"):4953.50 INV OUT (6"):4953.50 - 1 / I / r FUTURE SLURRY WALL ( 4' 0 MANHOLE STA: 13+93.91 INV IN (6'):4953.24 INV OUT (6"):4953.24 PLAN - SOUTH UNDERDRAIN 6" MECHANICALLY RESTRAINED CAP STA:15+95.72 INV IN (6'):4953.00 10.0' ROW RESERVED CLEANOUT STA: 10+20.19 OFF:0.00 SURFACE EL: 4963.22 //INV IN (6"):4953.68 INV OUT (6"):4953.68 52.4' OF 6" PERF. HDPE @ 0.12% 7 (DOUBLE WALL) 7 FUTURE SCREEN BERM CONSTRUCT SLURRY WALL PLATFORM PRIOR TO CONSTRUCTING UNDERDRAIN 1 1 4' O MANHOLE STA:13+93.91 OFF:0.00R RIM:4962.39 INV IN (6"):4953.24 INV OUT (6"):4953.24 94.1OF 6" PERF. HDPE @ 0.12% (DOUBLE WALL) 227.2' OF 6" PERF. HDPE Cd 0.12% (DOUBLE WALL) CLEAN OUT STA:11+66.67 OFF: -0.01L SURFACE EL: 4963.26 INV IN (6"):4953.50 INV OUT (6"):4953.50 201.8' OF 6" PERF. HDPE @ 0.12% (DOUBLE WALL) • 4975' 4970' 4965' 4960' 6" MECHANICALLY RESTRAINED CAP STA:1S+95.72 OFF:0.00 SURFACE EL: 4960.82 INV IN (6"):4953.00 10+00 11+00 12+00 13+00 14+00 PROFILE - SOUTH UNDERDRAIN 15+00 16+00 4955' 4950' 4945' 16+50 i i 1 4 4 4 Lb - SE 4 i 1 NORTH 0 20 s0 2 0 ( I` -II I:I "Ai kit I S 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 214-213-7859 (p) KIMBERLY DENNIS REVISIONS NO DESCRIPTION DATE FOR BID DESIGNED BY: a DRAWN BY: .EB_ CHECKED BY: C,L DATE: July, 2021 SCALE AS NOTED AS NOTED JOB NO.: 297.001.09 DWG NAME:UNDERDRAIN SITE PLAN.DWG SOUTH UNDERDRAIN PNP 2 SHEET 6 FUTURE SCREENING BERM Know whatt below" Call before you dig. 4970' 4965' 4960' 4955' 4950' 4945 4' CS MANHOLE STA:0+00.18 INV OUT (6"):4957.00 SOUTH ALIGNMENT SEE SHEET 5 6" PERFORATED HDPE (DOUBLE WALL) 6" CLEANOUT STA:1+76.36 INV IN (6"):4956.72 INV OUT (6"):4956.72 CITY OF AURORA WATERLINE EASEMENT SLURRY WALL PLATFORM - CONSTRUCT PRIOR TO UNDERDRAIN L./ WEST UNDERDRAIN ALIGNMENT MOND 6"CLEANOUT STA:4+17.57 INV IN (6"):4956.35 INV OUT (6"):4956.35 F 'UH Mine - \-- FUTURE SLURRY WALL \ Or - �L PLAN - WEST UNDERDRAIN / \ I I. 1 I 4' 0 MANHOLE STA:6+38.18 -\"I INV IN (6"):4956.00 [NV OUT (6"):4956.00 0 SOH 41+ H DH.. - 1 6" CLEANOUT STA:8+31.39 INV IN (6"):4955.70 INV OUT (6"):4955.70 - s t APPROX 75' WIDE PSCO ROW EASEMENT 6" P: FORATED HDPE PIPE (DOUBLE WALL) 9+00 r— OH 8" PERFORATED HOPE -PIPE (DOUBLE WALL) k `` i OH __ B" CLEANOUT AND 8" TO 6" REDUCE STA:10+42.95 INV IN (6"):4955.37 INV OUT (8"):4955.37 4' 0 MANHOLE STA:0+00.18 OFF:0.00 RIM:4962.45 INV OUT (6"):4957.00 176.2' OF 6" PERF. HOPE 0' 0.16% (DOUBLE WALL) CONSTRUCT SLURRY WALL PLATFORM PRIOR TO CONSTRUCTING UNDERDRAIN 67.9' OF 6" PERF. HDPE @ 0.16% (DOUBLE WALL) 4.8' OF 6" PERF. HDPE C 0.16% -(DOUBLE WALL) 1 4' 0 MANHOLE STA:6+38.18 OFF:O.OOL RIM :4960.05 INV IN (6"):4956.00 INV OUT (6"):4956.00 59.1' OF 6" PERF. HDPE 0 0.16% (DOUBLE WALL)-------`-�- 64.7' OF 6" PERF. HOPE 0 0.16% (D,U BLE WALL) 241.2' OF 6" PERF. HDPE @ 0.16% (DOUBLE WALL) CLEANOUT STA:1+76.36 OFF:0.00 SURFACE EL: 4961.48 INV IN (6"):4956.72 INV OUT (6"):4956.72 CLEANOUT STA:4+17.57 OFF:0.00 SURFACE EL: 4960.44 INV IN (6"):4956.35 INV OUT (6"):4956.35 147.9' OF 6" PERF. HDPE Qi 0.16% (DOUBLE WALL) 1 21.6' OF 6" PERF. HDPE @ 0.16% (DOUBLE WALL) 69.5' OF 6" PERF. HDPE ® 0.16% (DOUBLE WALL) 128.9' OF 6" PERF. HDPE 1 0.16% (DOUBLE WALL) CLEANOUT STA:8+31.39 OFF:0.00R SURFACE EL: 4959.70 INV IN (6"):4955.70 INV OUT (6"):4955.70 -0+50 0+00 1+00 2+00 3+00 4+00 5+00 PROFILE - WEST UNDERDRAIN 6+00 7+00 8+00 9+00 NORTH 4970' 4965' 4960' 4955' 4950' 4945' 10+00 0 20 40 ( huts IN CIVIL RFS'WURUFS 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 214-713-7859 (p) KIMBERLY DENNIS REVISIONS DESCRIPTION FOR BID DESIGNED BY: GL DRAWN BY: FB CHECKED BY: GL JOB NO.: 297.001,09 DWG NAMt:UNDERDRAIN SITE PLAN DWG DATE: July, 2021 SCALEAS NOTED AS NOTED SHEET: WEST UNDERDRAIN PNP1 7 f Know what's below. Call betore you dig. 4970' 4965' 4960' 4955' 4950' 4945' claws Ian Mita lH atone a - womb ante OH, U- 4' 0 MANHOLE STA: 12+79.87 INV IN (8"):4955.00 a - LB" PERFORATED HDPE PIP (DOUBLE WALL) 8" CLEANOUT AND 8" TO 6" REDUCER STA:10+42.95 INV IN (6"):4955.37 INV OUT (8"):4955.37 6" PERFORATED HDPE PIPE (DOUBLE WALL) INV OUT (8"):4955.00 U - a a- 1 OM RION', 13÷00 amiss 6" PERFORATED HDPE PIPE (DOUBLE WALL) SOUTH UNDERDRAIN ALIGNMENT SLURRY WALL PLATFORM - CONSTRUCT PRIOR TO UNDERDRAIN N • a- U- U - ala a - 4' 0 MANHOLE STA:1.5+19.89 INV IN (8"):4954.12 INV OUT (8"):4954.12 a FUTURE SLURRY WALL S PLAN - WEST UNDERDRAIN TODD CREEK EASEMENT ...../- APPROX 75 WIDE PSCO ROW EASEMENT 8" CLEANOUT STA:1B+46.25 INV IN (8"):4952.93 INV OUT (8"):4952.93 aos a - N 1 N N N • a - O 0 0 N tiLAJ q __La \. \ -OH- 4' 0 MANHOLE STA: 20+ 17.79 INV IN (8"):4952.30 INV OUT (6"):4952.30 NORTH CLEANOUT STA:1D+42.95 OFF:0.00 /SURFACE EL: 4959.32 INV IN (6"):4955.37 INV OUT (8"):4955.37 CONSTRUCT SLURRY WALL PLATFORM PRIOR TO CONSTRUCTING UNDERDRAIN 4' 0 MANHOLE STA:12+79.87 OFF:0.00 RIM:4959.47 /INV IN (8"):4955.00 INV OUT (8"):4955.00 60.2' OF 8" PERF. HDPE @ 0.16% (DOUBLE WALL) 61.1' OF 6" PERF. HDPE D.16% (DOUBLE WALL) 176.8' OF 8" PERF. HDPE @ 0.16% (DOUBLE WALL) 240.0' OF 8" PERF. HOPE @ 0.370/D (DOUBLE WALL) 4' O MANHOLE STA:15+19.89 OFF:0.01R RIM:4960.17 INV IN (8"):4954.12 INV OUT (8"):4954.12 N N 326.4' OF 8' PERF. HDPE 0.37% (DOUBLE WALL) CLEANOUT STA: 18+46.25 OFF:0.03R SURFACE EL: 4959.15 INV IN (8"):4952.93 INV OUT (8"):4952.93 171.5' OF 8" PERF. HOPE @ 0.37% (DOUBLE WALL) 10+00 11+00 12+00 13+00 14+00 15+00 PROFILE - WEST UNDERDRAIN 16+00 17+00 18+00 19+00 \ 4970' 4965' 4960' 4955' 4950' 4945' 20+00 ( scull bl rw w C7 CIVIL RESOURCES 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 214-213-'7859 (p) KIMBERLY DENNIS REVISIONS NO DESCRIPTION DATE FOR BID DESIGNED BY: GL_ DATE: July, 2021 DRAWN BY: EB SCALEAS NOTED CHECKED BY: GL- AS NOTED 308 NO.: 297.001.09 DWG NAME-UNDERDRAIN SITE PLAN DWG WEST UNDERDRAIN PNP 2 SHEET 8 / / / / V • Know what's below. Cali before you dig. • 4970' 4965' 4960' 4955' 4950' i e. / / / 2 + - / f 4' 0 MANHOLE STA: 20+17.79 INN IN (8"):4952.30 INV OUT (8"):4952.30 / / I 8" CLEANOUT STA:22+20.75 INV IN (8"):4951.79 INV OUT (8"):4951.79 - /- 4' O MANHOLE STA:24+04,08 INV IN (8")4951.48 INV OUT (8"):4951.48 WEST UND 8" PERFORATED HDPE PIPE (DOUBLE WALL) /1 i RDRAIN ALIGNMENT 8" CLEANOUT STA:25+ 15.48 INV IN (8"):49S1.29 INV OUT (8"):4951.29 y • • FUTURE SLURRY WALL SLURRY WALL PLATFORM - CONSTRUCT PRIOR TO UNDERDRAIN PLAN - WEST UNDERDRAIN / • • 4' 0 MANHOLE STA: 27+03.80 INV IN (8"):4950.96 INV OUT (8"):4950.96 • 7 APPROXIMATE RESERVOIR LOCATION • 4' 0 MANHOLE STA:20 '17.79 OFF:0.D0P RIM:4958.48 INV IN (8"):4952.30 INV OUT (8"):4952.30 22.1' OF 8" PERF. HDPE @ 0.37% (DOUBLE WALL) CONSTRUCT SLURRY WALL PLATFORM PRIOR TO CONSTRUCTING UNDERDRAIN - H- CLEANOUT STA:22+20.75 OFF:0.00 SURFACE EL: 4957.70 INV IN (8"):4951.79 INV OUT (8"):4951.79 4' 0 MANHOLE STA:24+04.08 OFF:0.00 RIM:4956.98 INV IN (8"):4951.48 INV OUT (8"):4951.48 CLEANOU7 STA:25+15.48 OFF:0.00 SURFACE EL: 4956.68 INV IN (8"):4951.29 INV OUT (8"):4951.29 4' 0 MANHOLE STA:27+03.80 OFF:0.00 RIM:4956.11 INV IN (8"):4950.96 INV OUT (8"):4950.96 4945' - _ 58.9' Or 8" PERF. HDPE @ 0.37% (DOUBLE WALL) 121.9' OF 8" PERF. HDPE @ 0.17% (DOUBLE WALL) STA: 20+98.86 INV EL: 4952.00 183.3' OF 8" PERF. HOPE (4) 0.17°i° (DOUBLE WALL) 111.4 OF 8" PERF. HDPE `m D.17% (DOUBLE WALL) 188.3' OF 8" PERF. HOPE @ 0.17% (DOUBLE WALL) 326.9' OF 8" PER= HDPE (d 0.17% (DOUBLE WALL) 20+00 21+00 22+00 23+00 24+00 25+00 PROFILE - WEST UNDERDRAIN 26+00 27+00 28+00 4970' 4965' 4960' 4955' 4950' 4945' 29+00 NORTH F-� _ 20 4O (BWI Mtdt) I\ II RFS''URCFS 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 214-213-7859 (p) KIMBERLY DENNIS TUCSON SOUTH UNDERDRAIN ADAMS COUNTY, COLORADO REVISIONS NO DESCRIPTION DATE FOR BID DESIGNED BY: GL DRAWN BY: ES CHECKED BY: GL DATE: July, 2021 SCALERS NOTED AS NOTED JOB NO.: 297.001.09 DWG NAME UNDERDRAIN SITE PLAN.DWG WEST UNDERDRAIN PNP 3 SHEET. 9 / / • / 4' O MANHOLE STA:24+04.08 INV IN (8"):4951.48 . "INV OUT (8"):4951.48 /z 2/ Know what's below. Call before you dig. ✓e / I / / \ \ 2 +00 8" CLEANOUT STA:25+15.48 INV IN (8'):4951.29 INV OUT (8"):4951.29 4' 0 MANHOLE STA:27+03.80 INV TN (8"):4950.96 INV OUT (8"):4950.96 WEST UNDERDRAIN ALIGNMENT (� - = W J W C Q W `f Vi ,I28+00I FUTURE SLURRY WALL 4V W W r . 1 - I30+001__ 8" CLEANOUT STA:30+30.71 INV IN (8"):4950.40 INV OUT (8"):4950.40 SLURRY WALL PLATFORM - CONSTRUCT PRIOR TO UNDERDRAIN PLAN - WEST UNDERDRAIN 4970 4965' 4960' 4955' 4950' 4945' • 8" MECHANICALLY RESTRAINED CAP STA:32+67.60 INV IN (8"):4950.00 8" PERFORATED HDPE PIPE (DOUBLE WALL) CONSTRUCT SLURRY WALL PLATFORM PRIOR TO CONSTRUCTING UNDERDRAIN CLEANOUT STA•Tn+1n 71 nVFn nn SURFACE EL: 4955.94 INV IN (8"):4950.40 INV OUT (8"):4950.40 236.9' OF 8" PERF. HOPE at 0.17% (DOUBLE WALL) 8" MECHANICALLY RESTRAINED JOINT STA:32+67.60 OFF:0.00 SURFACE EL: 4956.23 INV IN (8"):4950.00 29+00 30+00 31+00 PROFILE - WEST UNDERDRAIN 32+00 4970' 4965' 4960' 33+ 4955' SQRTH 4950' 4 4945' 2 00 a 2c 44 CIVIL RES" URCFS 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 W W W.CIVILRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 214-211-7859 (p) KIMBERLY DENNIS REVISIONS NO DESCRIPTION DATE FOR BID DESIGNED BY: GL DRAWN BY: ,ES CHECKED BY: GL DATE: July, 2021 SCALEAS NOTED AS NOTED JOB NO.: 297.001.09 DWG NAME:UNDERDRAIN SITE PLAN.DWG WEST UNDERDRAIN PNP 4 SHEET 10 CARSONITE MARKER 24"RING AND COVER- H2O TRAFFIC RATED EXISTING GRADE 6" (MIN) 18 MIN. MANHOLE RUNGS RUNGS UNIFORM DISTANCE 15" O.C. RUNGS REQUIRED FOR RIM TO INVERT DEPTHS OVER 3'. SEE NOTE RUNGS TO BE POLYPROPYLENE PLASTIC COATED B" MIN- EXISTING GRADE ASTM C-478 ECCENTRIC CONE GROUT SHIPLAP JOINT INSIDE Ye AND OUT r'SEaiON ASTM L-4 /a MANHOLE POURED INVERT Y- PRECAST MANHOLE BASE 18" MIN COOT CLASS 5 ROADBASE COMPACTED TO 95% MIN. MDD AT +1- 2°/n OPTIMUM MOISTURE NOTES: 1. LINK -SEAL SHALL BE USED AT ALL PIPE PENETRATIONS IN MANHOLE. SUBMITTAL REQ. 2. PENETRATIONS WILL BE GROUTED INSIDE AND OUTSIDE. 4' MANHOLE DETAIL N.T.S. EXISTING GRADE OSHA SAFE SLOPE/STABILIZATION BACKFILL COMPACTED TO 95% OF STANDARD MDD PER ASTM D698. LOCATING TAPE TRACING WIRE 6" OR 8" PERFORATED PIPE (SUBMITTAL REQUIRED) ASTM 03 CONCRETE SAND OR NATURAL AGGREGATE APPROVED BY ENGINEER UNDERDRAIN TRENCH DETAIL N.T.S. EXISTING GRADE DOUBLE MAT #4 EITHER RINGS W/ 10" MIN. OVERLAP OR STRAIGHT WI 3" MIN. CROSS LENGTH SCARIFY 12" MINIMUM AND MOISTURE CONDITION AND COMPACT TO A MINIMUM OF 95% MDD PER ASTM D698 AT +/- 2% OPTIMUM MOISTURE CONTENT CARSONITE MARKER (TYP) (TYP) 1 • 3" CLR 7 2' 0 MANHOLE RISER & TYPICAL MANHOLE LID (TRAFFIC RATED) LID AT FINISH GRADE WHEN IN STREET LID 4" ABOVE FINISH GRADE WHEN IN OPEN AREA CAST IRON FLOOR BOX IA" RUBBERIZED GASKET MATERIAL • • i _ VARIES UNDERDRAIN MAIN B • 6" (MIN) 1 O" 3'-6" 0 OR SQUARE NON -PERFORATED CLEANOUT RISER 45' SWEEP CLEANOUT DETAIL WYE 3" CLR 14.0'-20, D' N.T.S. 60.0' SLURRY WALL PLATFORM VARIES O 10.0' FUTURE SLURRY WALL TYPICAL HORIZONTAL PIPE LOCATION DETAIL N.T.S. Know what's below. Call before you dig. CIVIL RES•VURCES 8308 COLORADO BLVD SUITE 200 FIRESTONE, CO 80504 303.833.1416 WWW.CIVILRESOURCES.COM W . CIVI LRESOURCES.COM AGGREGATE INDUSTRIES 1687 COLE BLVD, SUITE 300 GOLDEN, CO 80401 211213-7859 (p) KIMBERLY DENNIS REVISIONS NO DESCRIPTION DATE DRAFT DESIGNED BY DRAWN BY: CHECKED BY: ARR ARR BLH DATE: June, 2021 SCALEAS NOTED AS NOTED JOB NO.: 297.001.09 DWG NAME;UNDERDRAIN COVER AND NOT DETAILS SHEET 11 S.DWG EXHIBIT H - WILDLIFE INFORMATION The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.8 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: (1) 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; This information is provided in two attached reports. The first report is by Tetra Tech (2019) and covers the original permit boundary. The second report is by Savage and Savage (2021) and covers the amended area extending to the north. b) Seasonal use of the area; This information is provided in the two attached reports. The first report is by Tetra Tech (2019) and covers the original permit boundary. The second report is by Savage and Savage (2021) and covers the amended area extending to the north. c) Threatened or endangered species; This information is provided in the two attached reports. The first report is by Tetra Tech (2019) and covers the original permit boundary. The second report is by Savage and Savage (2021) and covers the amended area extending to the north. d) General effect during and after the proposed operation on the existing wildlife of the area; This information is provided in the two attached reports. The first report is by Tetra Tech (2019) and covers the original permit boundary. The second report is by Savage and Savage (2021) and covers the amended area extending to the north. Aggregate Industries —Tucson South Gravel Mine — MLRB 112 Permit Amendment Application Exhibit H -1 Tetra Tech (2019) Biological Resources Report Tucson South Sand and Gravel Mine Project — Adams County, Colorado Biological Resources Inventory Report February 2019 AGGREGATE Prepared for: Aggregate Industries, LLC Prepared by: lb TETRA TECH 350 Indiana Street, Suite 500, Golden, CO, 80401 2019 Biological Resources Inventory Report Contents Page 1. Introduction 1 1.1 Project Description and Location 1 1.2 Regulatory Setting 1 Biological Resources Inventory 6 2.1 Biological Resources Inventory Methods 6 2.2 Biological Resources Inventory Results and Discussion 7 3. Conclusions 19 3.1 Federal and State Listed Species 19 3.2 Migratory Birds 20 3.3 Vegetation Resources 20 3.4 Listed Noxious Weeds 20 4. Literature Cited 21 Attachments Attachment 1: Adams County Weed Plan Attachment 2: USFWS IPaC Figures Figure 1: Wildlife Figure 2: Desktop Analysis —Land Cover Results Figure 3: Survey Results —Vegetation Figure 4: NRCS Soil Types Tucson South Sand and Gravel Mine —Brighton, Colorado i 2019 Biological Resources Inventory Report Tables Table 1: Colorado Noxious Weed List 3 Table 2: CPW-Identified Species with Potential to Occur in the Project Area 8 Table 3: Federally Listed Species Known to Occur in Adams County, Colorado 8 Table 5: USFWS IPaC-Identified Migratory Birds Likely to Occur in the Project area 14 Table 6: Vegetation Observed in the Project Area, July 6 and 7, 2017 16 Table 7: Cover Type and Percent of Project area 17 Table 8: Relationship Between Vegetation Types and Soils Types 18 Table 9: Noxious Weed Species Observed During Field Surveys 19 Table 10: Mitigation Measures for State -Listed Species With Potential To Occur in the Project Area 19 ii Tucson South Sand and Gravel Mine —Brighton, Colorado • • 2019 Biological Resources Inventory Report 1. Introduction Aggregate Industries (Al) is proposing to mine sand and gravel at the Tucson South Mine Project (Project) in Adams County, Colorado. The purpose of this report is to (1) provide a summary of local, state, and federal regulations that protect biological resources in Adams County; (2) document findings of the biological resources desktop analysis and field survey; and (3) provide recommendations for -Trra lageiit of bbtoycat uues, In 1m asures to ice " ` `if i ee necessary and practicable. 1.1 Project Description and Location The Project is located west of Brighton, Colorado, at the intersection of Tucson Road and Colorado Highway 7 in Sections 1 and 12 of Township 1 South, Range 67 West in Adams County. The Project area is divided by roads and parcel boundaries and is shown in Figures 1-4, attached. The total Project area is approximately 258 acres. Upon completion of mining, the site will be reclaimed as two below -grade water storage reservoirs and a reclaimed upland meadow. The Project will include the construction of temporary construction access roads, a slurry wall, gravel mining areas, and equipment storage areas. The Project is currently in the design phase and the final location of the Project features have not yet been defined. Therefore, for planning purposes, all of the Project area was evaluated for the presence of biological resources. The Project is expected to go through a review process by the U.S. Army Corps of Engineers (USACE); U.S. Fish and Wildlife Service (USFWS); Colorado Department of Public Health and Environment; Colorado Office of Archaeology and Historic Preservation; Colorado Department of Transportation; Colorado Parks and Wildlife (CPW); Colorado Division of Mining and Reclamation Safety (DRMS), and Adams County. Construction of the Project would begin after issuance of all necessary permits, which is currently anticipated as summer 2019. The Project would be developed over time and would operate indefinitely after the City of Aurora takes control of the site and operates the two reservoirs. A biological resources inventory and wetland delineations for the Project were performed on July 6 and 7, 2017. The results of the delineation are included in the Project Wetland Delineation Report (Tetra Tech 2019) and are not included herein. Due to layout changes since fieldwork was completed, the northernmost parcel has not been field surveyed for biological resources. Desktop analysis has been completed for the northernmost parcel. Because this parcel is part of a previously permitted and reviewed project and it is heavily disturbed, there are no anticipated additional impacts to biological resources at this location. 1.2 Regulatory Setting Several biological resources within the Project are protected by federal and state laws. The following subsections briefly describe these regulations and permitting processes where applicable. Tucson South Sand and Gravel Mine —Brighton, Colorado 1 2019 Biological Resources Inventory Report • 1.2.1 Special Status Species The Endangered Species Act (ESA) and its implementing regulations in Title 50 of the Code of Federal Regulations (CFR) Section 17 prohibit the take of any fish or wildlife species that is federally listed as threatened or endangered without prior approval pursuant to either Section 7 or Section 10 of the ESA. The USFWS is responsible for the implementation of the ESA. Section 3 of the ESA defines "take" as "to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect or to attempt to engage in any such conduct" (16 United States Code [USC] § 1532 (19)). Harm, in this case, means an act that actually kills or injures a federally listed wildlife species and "may include significant habitat modification or degradation where it actually kills or injures wildlife by significantly impairing essential behavioral patterns, including breeding, feeding or sheltering." To harass means to perform "an intentional or negligent act or omission which creates the likelihood of injury to wildlife by annoying it to such an extent as to significantly disrupt normal behavioral patterns which include, but are not limited to, breeding, feeding or sheltering" (50 CFR §17.3). In addition, Section 9 of the ESA details generally prohibited acts, and Section 11 provides for both civil and criminal penalties for violators regarding species federally listed as threatened or endangered. Colorado Revised Statute (CRS) 33-2-105 states that it is unlawful to "take, possess, transport, export, process, sell or offer for sale, or ship" any species listed as threatened or endangered by CPW. According to CRS 33-1-102 "Take" means to acquire possession of wildlife; but such term shall not include the accidental wounding or killing of wildlife by a motor vehicle, vessel, or train." Activities that would trigger the need for USFWS or CPW consultation or permitting for the Project are discussed in more detail in Section 3. It is unlawful under the Migratory Bird Treaty Act (MBTA) (50 CFR § 10.13) to "pursue, hunt, take, capture or kill; attempt to take, capture or kill; possess, offer to or sell, barter, purchase, deliver or cause to be shipped, exported, imported, transported, carried, or received any migratory bird, part, nest, egg, or product." Birds protected under this act include most native birds, including their body parts (e.g., feathers), nests, and eggs. The Bald and Golden Eagle Protection Act (BGEPA) prohibits the take of Bald or Golden Eagles by any party. The BGEPA defines "take" as "to pursue, shoot, shoot at, poison, wound, kill, capture, trap, collect, destroy, molest, and disturb individuals, their nests and eggs" (16 USC 668c). "Disturb" is defined by regulation at 50 CFR 22.3 in 2007 as "to agitate or bother a Bald or Golden Eagle to a degree that causes... injury to an eagle, a decrease in productivity, or nest abandonment..." CPW recommends a set of seasonal buffers for specific nesting raptors that commonly occur in Colorado, including but not limited to Bald and Golden eagles (CPW 2008). These buffers are for active nests and range from 0.25 mile to 0.5 mile depending on the species. The associated date range for each seasonal buffer remains the same annually. 2 Tucson South Sand and Gravel Kline —Brighton, Colorado 2019 Biological Resources Inventory Report 1.2.2 Noxious Weeds The state of Colorado promulgated the Colorado Noxious Weed Act (Act) in 1990 within Title 35, Article 5.5, Parts 110 through 119, in 1990. The Act initially created three lists: A, B and C (CDA 2017a). The state subsequently added a watch list. The most recent update to the weed lists became effective March 31, 2017. The Act requires A -list species to be eradicated wherever detected to protect neighboring communities and the state as a whole. There are 25 species on the A list. The B list represents those species for which the state of Colorado and local governments will develop noxious weed management Ions to"sto y'tf5e contiriued's read" of these' s. ecies' The -13 fre edlite ris'38 s ecies. S eoies o`n`fFie� "list `- P ,�, p� p p. ..e are those species that the state will assist governing bodies manage through education, research, and biological controls. The C list includes 15 species. The watch list includes 24 species of weeds that are documented for advisory and educational purposes only at this time. The state listed noxious weeds are provided in Table 1. Table 1: Colorado Noxious Weed List :.` `{ '£± tt ¢'^' e se,„"^. .. x::} *.,�'".k k,�nw'it. 1.✓ ,, iM t #i q' .,tT" ✓` 'u'."" Sg F a i Y f X D African rue Peganum harmala Camelthorn Alhagi pseudalhagi Common crupina Crupina vulgaris Cypress spurge Euphorbia cyparissias Dyers woad !sells tinctoria Elongated mustard Brassica elongate Flowering rush Butomus umbellatus Giant reed Arundo donax Giant salvinia Salvinia molesta Hairy willow -herb Epilobium hirsutum Hydrilla Hydrilla vertici lata Bohemian Knotweed Polygonium x bohemicum Giant Knotweed Polygonium sachalinese Japanese Knotweed Polygonium cuspidatum Meadow knapweed Centaurea pratensis Mediterranean sage Salvia aethiopis Medusahead Taeniatherum caput-medusae Myrtle spurge Euphorbia myrsinites Orange hawkweed Hieracium aurantiacum Parrotfeather Myriophyllum aquaticum Purple loosestrife Lythrum secede Rush skeletonweed Chondrilla juncea Squarrose knapweed Centaurea virgata Tansy ragwort Seneciojacobaea Yellow starthistle Centaurea solstitialis Tucson South Sand and Gravel Mine —Brighton, Colorado 3 2019 Biological Resources Inventory Report Table 1: Colorado Noxious Weed List Scent fic°Nam& Absinth wormwood Artemisia absinthium Black henbane Hyoscyamus niger Bouncingbet Saponaria officinalis Bull thistle Cirsium vulgare Canada thistle Breea arvensis (Cirsium arvense) Chinese clematis Clematis orientalis Corn chamomile Anthemis arvensis Mayweed chamomile Anthemis cotula Scentless chamomile Tripleurospermum perforatum Chinese clematis Clematis orientalis Common tansy Tanacetum vulgare Common teasel Dipsacus fullonum Corn chamomile Anthemis arvensis Common teasel Dipsacus fullonum Cutleaf teasel Dipsacus laciniatus Dalmatian toadflax Linaria dalmatica Dame's rocket Hesperis matronalis Diffuse knapweed Acosta diffuse (Centaurea diffusa) Eurasian watermilfoil Myriophyllum spicatum Hoary cress Cardaria draba Houndstongue Cynoglossum officinale Jointed goatgrass Aegilops cylindrica Leafy spurge Euphorbia esula Moth mullein Verbascum blattaria Musk thistle Carduus nutans Oxeye daisy Chrysanthemum leucanthemum Perennial pepperweed Lepidium latifolium Plumeless thistle Carduus acanthoides Russian knapweed Acroptilon repens Russian -olive Elaeagnus angustifolia Salt cedar Tamarix chinensis, T.parviflora, and T. ramosissima Scentless chamomile Matricaria perforata Scotch thistle Onopordum acanthium, and O, tauricum Spotted knapweed Centaurea maculosa Sulfur cinquefoil Potentilla recta Wild caraway Carum carvi Yellow nutsedge Cyperus esculentus Yellow toadflax Linaria vulgaris Bulbous Goatgrass Poa bulbosa Chicory Cichorium intybus 4 Tucson South Sand and Gravel Mine —Brighton, Colorado 2019 Biological Resources Inventory Report Table 1: Colorado Noxious Weed List %leV _ Common Name Sc enntific �, _ .x Common burdock Arctium minus Common mullein Verbascum thapsus Common St. Johnswort Hypericum perforatum Downy brome Bromus tectorum —Field-bindweed Convotvutus-arvensisr. ... Halogeton Halogeton glomeratus Perennial sowthistle Sonchus arvensis Poison hemlock Conium maculafum Puncturevine Tribulus terrestris Quackgrass Elymus repens Redstem fillaree Erodium cicutarium Velvetleaf Abutilon theophrasti Wild proso millet Panicum miliaceum Source: CDA (2017) 1.2.2.1 Adams County Noxious Weed Management Adams County established a Noxious Weed Management Plan (Adams County Plan) and a Noxious Weed Enforcement Policy in May 2008 (the Policy) that is included as Attachment 1. The Adams County Plan states: Cooperation from all landownersloccupants regarding timely noxious weed management will be encouraged via positive communication and education efforts. The Weed Office or its agent will continue to apply herbicides to a limited acreage of noxious weeds on private lands by landowner or tenant request, consistent with County policies. Where noxious weeds are still found, an enforcement process will be initiated to ensure control of the Weeds. According to the Policy, landowners in Adams County are required to manage noxious weed infestations. The policy also outlines criteria for county officials to inspect for noxious weed infestations on public and private land and identifies methods of notification to landowners if an infestation is found to occur and it requires that the notified landowner comply with the terms of the notification and the policy. If the landowner does not comply with the terms, the county may access the property and undertake the management of noxious weeds. In this case, the Policy outlines a method for the county to recover costs of management. Tucson South Sand and Gravel Mine —Brighton, Colorado 5 2019 Biological Resources Inventory Report 2. Biological Resources Inventory This biological resources inventory featured two components: a desktop analysis and field survey. These two components were completed by biologists qualified to identify flora and fauna in the Front Range of Colorado. 2.1 Biological Resources Inventory Methods The following subsections describe the methods used to evaluate the presence of biological resources for the Project area. 2.1.1 Desktop Methods Each of the desktop resources listed below were used in evaluating the biological resources that are in the vicinity of the Project area: • USFWS Region 6 Information for Planning and Conservation (IPaC) search results for federal and state listed threatened and endangered species likely to occur near the Project area (Attachment 2) • USFWS Critical Habitat Map Service (USFWS 2017a) • CPW Bald Eagle Shapefile (CPW 2016a) • CPW threatened, endangered and species of concern for the state (CPW 2017) • CPW Species Profiles (CPW 2016c). • CPW Species Activity Data (CPW 2016b). • Colorado Natural Heritage Program (CNHP) Database CNHP maintains species profiles for protected species that can be used to identify species of concern within a Project area (CNHP 2015a, 2015b) • U.S. Department of Agriculture (USDA) Farm Service National Agricultural Imagery Program Aerial photography for Project location (USDA 2015) • Natural Resource Conservation Service (NRCS) Soil Survey Geographic (SSURGO) Database. Shapefile. Accessed July 8, 2017. Available online: http://sdmdataaccess.nres.usda.gov/. (NRCS 2017) • Multi Resolution Land Characteristics Consortium National Land Cover Dataset Compilation (NLCD) (Fry et al. 2011) • Hammerson, G.A. 1999. Amphibians and Reptiles in Colorado. Second Edition, 2nd Edition. University Press of Colorado (Niwot, Colorado) and Colorado Division of Wildlife • Sibley, David Allen. 2014. Sibley Guide to Birds. Second Edition. Knopf Publishing Group 2.1.2 Field Survey Methods Two biologists qualified to identify Great Plains flora, fauna, and noxious weeds conducted the field effort. The following subsections provide descriptions of survey methods used for each component of the field survey by the field team. The northernmost parcel was added after the completion of the field survey, data related to this area was completed by desktop review only. • 6 Tucson South Sand and Gravel Mine —Brighton, Colorado 2019 Biological Resources Inventory Report 2.1.2.1 Listed Species —Habitat Suitability Assessment Field notes and digital photography were collected from within the Project area that presented suitable habitat characteristics that would support any species listed in Tables 3 and 4. 2.1.2.2 General Wildlife and Vegetation Assessment Tetra Tech biologists performed a field survey to document habitat types in the Project area. All species of wildlife and vegetation that were observed during the survey were recorded in a field logbook and photographed as practicable. Locations of certain resources, sucTias potential -black -Wed prairie dog colonies in the Project area, were mapped using a generic GPS software loaded on the field tablet computer. 2.1.2.3 Avian Survey Methods Tetra Tech biologists surveyed the Project area for raptor nests and trees that could support raptor nests. The largest buffer for active raptor nests recommended by CPW is 0.5 mile for the Bald Eagle, so only trees within 0.5 mile buffer of the Project area were surveyed for nests. The raptor nest survey was completed during full leaf -out of deciduous trees in the Project area, so trees with the potential to support nests were observed with field binoculars to search for nests to the greatest extent possible. CPW defines an active nest as any nest that is "frequented or occupied by a raptor during the breeding season or which has been active in any of the five previous breeding seasons" (CPW 2008). Biologists also documented suitable habitat and sightings of individual bird species protected by the MBTA in the Project area. 2.1.2.4 Noxious Weed Inventory An informal survey for state listed noxious weeds was conducted incidentally during the general wildlife and vegetation assessment. This effort was not intended to be, and should not be considered, an extensive survey of the entire Project area. 2.2 Biological Resources Inventory Results and Discussion The following sections describe the results of the biological resources assessment completed for the Project area. 2.2.1 Desktop Results 2.2.1.1 Ecoregional Setting The Project is completely situated in the High Plains Level III Ecoregion. The High Plains Ecoregion includes four Level IV ecoregions. The Project area lies within the Flat to Rolling Plains (25d) Level IV ecoregion (Chapman et al. 2001). This ecoregion is characterized by moderate topological relief, silty and sandy soils, shortgrass prairie vegetation, and intermittent streams with few perennial streams. This ecoregion is known to have small scattered depressional "playa" wetlands and dense oil and gas production. Elevation in the Project area is between 4,900 and 5,000 feet above sea level. Tucson South Sand and Gravel Mine —Brighton, Colorado 7 2019 Biological Resources Inventory Report 2.2.1.2 General Wildlife Table 2 lists the species identified by CPW as potentially occurring in the Project area (CPW 2016b). The list includes birds and mammals. Table 2 also lists the season each species is expected to occur in the Project area. Except for the White Pelican, all of the species in Table 2 are expected to occur in the Project area year-round. The White Pelican is expected in the Project area only during migration in the spring and fall months. Table 2: CPW-Identified Species with Potential to Occur in the Project Area Common Name , Sc ent`i is Name Season Species Is Expected to occur in the Project Area Bald Eagle Haliaeetus leucocephalus Year-round Black -tailed Prairie Dog Cynomys ludovicianus Year-round Goose Brenta spp. Year-round Great Blue Heron Ardea herodias Year-round Whig Pelican Pelecanus erythrorhynchos Spring/fall Mule Deer Odocoileus hemionus Year-round Preble's Meadow Jumping Mouse Zapus hudsonius preblei Year-round Whit -tailed deer Odocoileus virginianus Year-round Wild turkey Meleagris spp. Year-round 2.2.1.3 Federally Listed Species According to USFWS Region 6 Information for Planning and Conservation (IPaC) output for the Project area (Attachment 2), four birds, one fish, one mammal, and three flowering plant species that are federally listed as threatened or endangered by the USFWS should be considered as part of an effect analysis for the Project. Table 3 lists these species and summarizes the likelihood of occurrence in the Project area. None of the species listed in Table 3 was directly observed during the field survey. As the table shows, none of the species were judged to have potential to occur within the Project area. There are no USFWS-designated critical habitats for any federally listed species within the Project area (USFWS 2017a) Tate 3: Federally Listed Species Known to Occur in Adams County, Colorado on Nam �e rt% at a iho t i r su ht Least Tern (interior population)3 Stemula antillanim FE Unlikely to occur. Habitat consists of bare sandy shorelines of reservoirs, lakes, and rivers. The Project area is outside the typical breeding and wintering distribution for this species. The species occurs in the Platte River watershed downstream in Nebraska. In addition, the Second Colorado Breeding Bird Atlas does not show elemental occurrences or breeding in Adams County for the interior population of the Least Tern. No critical habitat has been designated for this species exists in the Project area. 8 Tucson South Sand and Gravel Mine —Brighton, Colorado 2019 Biological Resources Inventory Report Table 3: Federally Listed Species Known to Occur in Adams County, Colorado CemsndtrNarne Scientific Name tattts2 Likeilhded of in Prof t'arealHati Eat Sc abili# Mexican Spotted Owl Strix occidentalis lucida FT Unlikely to occur. Habitat consists of mature mixed -conifer, pine -oak, and riparian forest in canyon habitat. These habitat components are not present in the Project area. The Second Colorado Breeding Bird Atlas does not show elemental occurrences or breeding in Adams County for the Mexican Spotted Owl. No designated critical habitat for the Mexican Spotted Owl exists in the Project area. Piping Plover' Charadrius melodus FT Unlikely to occur. Suitable habitatincludes spay"s`eTy VegeeTed'sandbats'"LL"` of rivers and sparsely vegetated and frequently alkaline beaches, lakeshores, and wetlands. The Project area is outside the typical breeding and wintering distribution for this species. This species occurs in the Platte River watershed downstream in Nebraska. In addition, the Second Colorado Breeding Bird Atlas does not show elemental occurrences or breeding in Adams County for the Piping Plover. No designated critical habitat for the Piping Plover exists in the Project area. Whooping Crane3 Grus americana FE Unlikely to occur. The Whooping Crane breeds, migrates, winters, and forages in a variety of wetland and other habitats, including coastal marshes and estuaries, inland marshes, lakes, ponds, wet meadows and rivers, and agricultural fields. The Project area is outside the typical distribution for this species. This species occurs in the Platte River watershed downstream in Nebraska. The Project does not anticipate causing any water depletions to the South Platte River. In addition, the Second Colorado Breeding Bird Atlas does not show elemental occurrences or breeding in anywhere in Colorado for the Whooping Crane. No designated critical habitat for the Whooping Crane exists in the Project area. . µ.Vi Pallid Sturgeon3 Scaphirhynchus albus FE Not present in Colorado. This species is documented to occur downstream in the Platte River in Nebraska. The Project does not anticipate causing any water depletions to the South Platte River. Pallid sturgeon are a bottom -oriented, large river obligate fish inhabiting the systems of the Missouri and Mississippi rivers. No critical habitat has been designated for the pallid sturgeon in the Project area. Preble's Meadow Jumping Mouse Zapus hudsonius preblei FT Unlikely to occur. Project is located in the USFWS Preble's Meadow Jumping Mouse Block Clearance Zone.4 Colorado Butterfly Plants Oenothera coloradensis spp. coloradensis FT Unlikely to occur. The Colorado butterfly plant (COBP) is known to occur in Adams County; however, COBP was not observed in the Project area during the site visit and potential COBP habitat does not exist in the Project area. COBP is an early successional plant (although probably not a pioneer) adapted to use sub -irrigated alluvial stream channel sites and floodplains surrounded by mixed grass prairie that are periodically disturbed. COBP occurs at elevations of 5,000-6,400 feet, which is slightly higher than the elevation range of the Project area. The habitat at the South Platte River Creek has dense vegetation cover with at least partial canopy coverage by shrubs and trees, which is not suitable habitat for COBP. No designated critical habitat for COBP exists in the Project area. The Project is not expected to impact the South Platte River or associated wetlands. Tucson South Sand and Gravel Mine —Brighton, Colorado 9 2019 Biological Resources Inventory Report Table 3: Federally Listed Species Known to Occur in Adams County, Colorado Common Name <: Scientific Ferue S S and of,Occsrnence in Project area tattitat Suitabii Lite Ladies' -tresses orchids Spiranthes diluvialis FT Unlikely to occur. Suitable habitat likely does exist for Ute ladies' -tresses orchid (ULTO), however the species is not known to occur in Adams County. Suitable habitat includes perennial stream terraces, floodplains, and oxbows at elevations between 4,300-7,000 feet. Recent surveys since 1992 have expanded the number of vegetation and hydrology types occupied by ULTO to include seasonally flooded river terraces, subirrigated or spring -fed abandoned stream channels and valleys, and lakeshores. Twenty-six populations have been discovered along irrigation canals, berms, levees, irrigated meadows, excavated gravel pits, roadside barrow pits, reservoirs, and other human -modified wetlands. The habitats at the crossings of the South Platte River have dense vegetation cover with at least partial canopy coverage. No critical habitat designated for ULTO exists in the Project area. Western Prairie Fringed Platanthera FT Not present. Western prairie fringed orchid is a perennial orchid of the Orchid3 praeclara North American tall grass prairie and is found most often on unplowed calcareous prairies and sedge meadows. This species is dependent on mycorrhizal fungi, and its persistence is dependent on periodic disturbance by fire, mowing, or grazing. The species occurs in Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, and Oklahoma. Upstream depletions to the Platte River system in Colorado and Wyoming may affect the species in Nebraska, No critical habitat is designated for the orchid in the Project area. 1 Source: Ackerfield (2015) 2 FE = Federal Endangered, FT = Federal Threatened 3 USFWS (2017a) 3 Water depletions in the North Platte River, South Platte River, and Laramie River basins may affect the species and/or critical habitat associated with the Platte River in Nebraska. 4 USFWS (2010) 5 CNHP (2015a) 6 CNHP (2015b) 2.2.1.4 State Listed Species CPW's threatened and endangered list includes state listed endangered and threatened species (CPW 2017). This list includes amphibians, birds, fish, and mammals. Table 4 summarizes the state listed species that were evaluated for presence within the Project and the status and the likelihood of occurrence in the study area. Species identified with a potential to occur in Table 4 are described in further detail below. Species of concern do not have any regulatory protection in Colorado, and impacts to these species will be minimized to the extent practicable using best management practices and avoidance measures. 10 Tucson South Sand and Gravel Mine —Dighton, Colorado 2019 Biological Resources Inventory Report Table 4: State Listed Species and Their Likelihood of Occurrence Within the Project Area Taxonomic Common State Group Name Sctenti c Name Status Likelihood of Occurrence ut hin the Project Area Amphibians2 Boreal Toad Bufo boreas SE Unlikely to occur. Habitat includes mountain lakes, ponds, meadows, and wetlands in subalpine forests, which do not occur in the Project area. Adults often feed in meadows and forest openings near water but sometimes in drier forest habitats. This species " habitat is exclusively in the mountains of -Colorado to the west of the Project area and typically above 8,500 feet above level. mean sea Birds o s pa , 9aa..' �e a mw, { dE' a • 9 Y 8iB l4 d •. Am e @ 6 b _.yam, 0 t C D` i'$Ji 8 C '.'E 9 L •.. . � „ ._ ry Least Tern Sterna antillarum SE Unlikely to occur. Breeds in the southern and eastern portion of the state, generally in the La Junta —Lamar area outside the Project area. Habitat consists of sandy hills and rooftops large rivers in the great plains and the Atlantic coast. Lesser Prairie Tympanuchus ST Unlikely to occur. Occupies the grasslands of Texas, Oklahoma, Chicken pallidicintus New Mexico, Kansas, and southeastern Colorado, outside the Project area. Mexican Strix occidentalis ST Unlikely to occur. Habitat consists of mature mixed -conifer, pine - Spotted Owl lucida oak, and riparian forest in canyon habitat. These habitat components are not present in the Project area. Plains Sharp- Tympanuchus SE Unlikely to occur. Occurs in native grassland habitats with shrub Tailed Grouse phasianellus jamesii cover or grain fields that do not occur in or around the Project area. Piping Plover Charadrius melodus ST Unlikely to occur. The study area is outside typical breeding and circumcinctus wintering distribution. Occurs in the Platte River watershed downstream in Nebraska. Southwestern Empidonax traillii SE Unlikely to occur. The tudy area is outside typical distribution. Willow Flycatcher extimus Breeding distribution in Colorado is limited to the southwestern portion of the state in riparian forests. Whooping Grus americana SE Unlikely to occur. The study area is outside typical distribution. Crane Occurs in the Platte River watershed downstream in Nebraska. Arkansas Etheostoma Cragini ST Unlikely to occur. The range of the species occurs within the Darter Arkansas River drainage, outside of the Project area. Fish4.5 Bonytail Gila eiegans SE Unlikely to occur. Does not occur east of the Continental Divide. B€asst' fybognafhus ST Moderate potential to occur in coolinntermittent and per talinnow l ankinsoni streams within the Project. This species occurs in in stre channels, pools, and small streams in the Lower South Platte River BasinIts distribution is notoriously unpredictable but can be Colorado Ptychocheilus lucius ST Unlikely to occur. Does not occur east of the Continental Divide. Pikeminnow Greenback Oncorhynchus clarki ST Unlikely to occur. Prefers clear, cold gravely headwater streams in Cutthroat Trout stomias mountainous regions, which do not exist within the Project area. Humpback Gila cypha ST Unlikely to occur. Does not occur east of the Continental Divide. Chub Tucson South Sand and Gravel Mine —Brighton, Colorado 11 2019 Biological Resources Inventory Report Table 4: State Listed Species and Their Likelihood of Occurrence Within the Project Area axon�mic oup mmotr Name . , Ste iti c:Name :' "Mate 'Status ..= Likelihood ofOccurrenc w hinn ZePr jest di Lake Chub Couesius plumbeus SE Unlikely to occur. The species is confined to perennial waterbodies. This species prefers deep water with large rocks, which does not occur within the Project area. Northern Redbelly Dace Phoxinus eos SE Unlikely to occur. In Colorado, known only to occur in the West Plum Creek drainage, outside of the Project area. a Rio Grande Sucker Catostomus Obelus SE Unlikely to occur. Not known to occur in the South Platte River drainage system. Razorback Sucker Xyrauchen texanus SE Unlikely to occur. The species occurs in the Colorado River system, outside of the Project area. Southern Redbelly Dace Phoxinus erythrogaster SE Unlikely to occur. In Colorado, known only to occur in the Upper Arkansas River, Fountain Creek, Chico Creek, Apishapa River, and Big Sandy Creek, outside of the Project area. p Black -Footed Ferret Mustela nigripes SE Unlikely to occur. This species is very rare. Habitat once included the eastern plains, the mountain parks, and the western valleys — grasslands or shrublands that supported some species of prairie dog, the ferret's primary prey. Ferrets have been released from the captive breeding program in Colorado, but not near this Project area. Gray Wolf Canis lupus SE Unlikely to occur. This species is considered extirpated in Colorado. Grizzly Bear Ursus arctos SE Unlikely to occur. This species is considered extirpated in Colorado. Mammals' Kit Fox Vulpes macrotis SE Unlikely to occur. Range extends from Montrose to Grand Junction on the western slope of Colorado, not near the Project area. Lynx Lynx canadensis SE Unlikely to occur. This species is been released in experimental populations in the mountains of Colorado, Individuals from this experimental population have been documented to disperse widely in Colorado and have even traveled out of state, but the species prefers areas covered in snow year round, which does not occur within the Project area. Preble's Meadow Jumping Mouse Zapus hudsonius preblei ST Unlikely to occur. Project is located in the USFWS Preble's Meadow Jumping Mouse Block Clearance Zone.8 �'1�ta9 is a a a F9r are ion a.'i i Wolverine Gulo SE Unlikely to occur. Habitat includes tundra, taiga, boreal, and alpine biomes, which are not present in the Project area. 12 Tucson South Sand and Gravel Mine —Brighton, Colorado 2019 Biological Resources Inventory Report 1 Potential for Occurrence: Unlikely —No species range overlap in the Project or unsuitable habitat; Low —species range overlaps with Project with marginally suitable habitat; Moderate —species range overlaps with Project with suitable habitat or species is known to occur in habitat similar to habitat in Project; High —suitable habitat is present in the Project or known populations exist in the Project; Present — species observed during field surveys. 2 Source: Hammerson (1999) 3 Source: Sibley (2014) 4 Source: Johnson (2007) 5 Source: Sullivan et al. (2009) ≥a41u_ce Wiest -et 17)- 7 Source: Fitzgerald et al. (1994) 8 Source: USFWS (2010) 2.21.4.1 Burrowing Owl Burrowing owls (ST), have suitable habitat in active and remnant black -tailed prairie dog colonies that intersect the Project area. Only one of three potential black -tailed prairie dog colonies were documented to be active in the Project area; however, burrows that could be used as burrowing owl habitat were documented in each mapped potential black -tailed prairie dog colony. Pre -construction surveys for burrowing owls according to CPW-recommended survey protocol would be conducted in these locations if construction occurs during the burrowing owl breeding season (March 15 —October 31). If nesting owls are observed, the nesting location will be documented, and Al will notify the DRMS. Al will implement the CPW-recommended 150 -foot non -encroachment buffer from active burrows. 2.21.4.2 Plains Minnow, Suckermouth Minnow, and Brassy Minnow Three fish species, plains minnow (SE), suckermouth minnow (SE), and brassy minnow (ST) have the potential to occur in perennial and intermittent waters intersected by the Project. Impacts to perennial and intermittent streams (Brighton Ditch, Brantner Ditch, and the Brighton Return) in the Project area will be avoided, and stream flows will not be altered. No impacts to these species are expected. 2.2.1.4.3 River Otter River otters (ST) prefer riparian habitats along perennial river systems and are known to occur along the South Platte River. River otters use beaver dens and lodges, brush piles, and muskrat dens in secluded areas for natal dens, rearing young throughout the spring and summer months (Fitzgerald et al. 1994). The Project would avoid direct impacts to the river otter and impacts to potential river otter breeding habitat along the South Platte River and its associated riparian area including potential natal dens. No impacts to the South Platte River, the river otter, or its habitat is anticipated. 2.2.1.5 Migratory Birds CPW shapefiles were consulted to identify any known potential Bald Eagle or Osprey nests located in or near the Project area. The closest documented Bald Eagle nest is located approximately 0.8 mile away from the Project area (CPW 201c). Table 5 lists 24 species of migratory birds that should be considered as part of an effects analysis for this Project area according to IPaC output (Attachment 2). Tucson South Sand and Gravel Mine —Brighton, Colorado 13 2019 Biological Resources Inventory Report Table 5: USFWS IPaC-Identified Migratory Birds Likely to Occur in the Project area American Bittern Botaurus lentiginosus Breeding Bald Eagle Haliaeetus leucocephalus Year-round Black Rosy -finch Leucosticte atrata Year-round Brewer's Sparrow Spizella breweri Breeding Burrowing Owl Athena cunicularia Breeding Dickcissel Spiza Americana Breeding Ferruginous Hawk Buteo regalis Year-round Golden Eagle Aquila chrysaetos Year-round Lark Bunting Calamospiza melanocorys Breeding Lewis's Woodpecker Melanerpes lewis Breeding Loggerhead Shrike Lanius ludovicianus Breeding Long -billed Curlew Numenius americans Breeding Mountain Plover Charadrius montanus Breeding Peregrine Falcon Falco peregrinus Breeding Prairie Falcon Falco mexicanus Year-round Red-headed Woodpecker Melanerpes erythrocephalus Breeding Rufous Hummingbird Selasphorus rufus Migrating Sage Thrasher Oreoscoptes montanus Breeding Short -eared Owl Asio flammeus Wintering Swainson's Hawk Buteo swainsoni Breeding Virginia's Warbler Vermivora virginiae Breeding Western Grebe Aechmophorus occidentalis Breeding Williamson's Sapsucker Sphyrapicus thryroides Breeding Willow Flycatcher Empidonax traillii Breeding 2.2.1.6 Land Cover The land cover for the Project area was determined through a desktop analysis of the National Land Cover Database (Fry et al 2011). The Project area lies within cover classes identified by the NLCD as cultivated cropland, hay/pasture, herbaceous, grasslands, woody and herbaceous wetlands, and developed and barren (Figure 2). 2.2.2 Field Survey Results The field survey was completed on July 6 and 7, 2017. The following sections describe the results of this survey effort. 2.2.2.1 General Wildlife Resources Biologists documented four of the nine general wildlife species identified as having potential to occur by CPW (Table 2) in the Project area including four black -tailed prairie dogs, one Great Blue Heron, five White Pelicans, and three wild turkeys. In addition, an eastern cottontail rabbit (Sylvilagus floridanus) was observed. Other avian species observed perched or flying in the Project area included Mallard (Anas 14 Tucson South Sand and Gravel Mine —Brighton, Colorado 2019 Biological Resources Inventory Report platyrhynchos), American Crow (Corvus brachyrhynchos), Black -billed Magpies (Picea hudsonia), Red- wing Blackbird (Agelaius phoeniceus), Mourning Dove (Zenaida macroura), and Western Tanager, (Piranga ludoviciana). All of the bird species observed in the Project area are protected under the MBTA (USFWS 2013). The mammals identified by CPW as having potential to occur in the Project area or identified during the survey are not restricted to the site and commonly have large home ranges. Rodent species are known to hibernateorbecome dormant for portions of the vianter. Avian species may be migrants or residents of the Project area. Activity in the Project area would temporarily displace wildlife and reduce available habitat for animals currently living in the Project area during active operations. Vegetation and preparation of work sites poses the greatest disruption to wildlife in the Project area. During vegetation clearing, a majority of individuals would move away from construction activities given the disruptive nature of these activities. Some individuals would either attempt to hide within the path of disturbance (e.g., small mammals or reptiles may attempt to burrow underground or remain motionless within the vegetation during clearing) or would be unable to relocate away from the disturbed area. The Project is not expected to have significant impacts on migratory routes for avian resources. The Project is not within any known major avian migration corridors or stop -over sites, and would not impede flight for avian resources or prohibit stop -over in nearby areas. The Project may cause a minor temporary displacement in local food resources for carnivores as some small mammals and insects would be displaced or during construction. A slight decrease in available food for herbivores may also occur due to vegetation clearing. Some species such as birds or ungulates would continue to use the Project area while project activities are underway. Noise and dust emissions during construction would also cause some wildlife to temporarily leave the Project area during construction. No long-term impacts to wildlife species are expected by the Project. Permanent reclamation of the site will be reclaimed as two below -grade water storage reservoirs and a reclaimed upland meadow in the Project area. Native vegetation will be seeded and planted which will support wildlife species. Wildlife would be allowed to return to the Project area following mining operations. Overall wildlife and vegetation habitat is expected to improve compared to the habitat that currently exists. Available food for both herbivores and carnivores is expected to increase when the Project is completed because wildlife habitat and vegetation habitat is expected to improve. 2.2.2.2 Raptor Nest Survey Results During the field surveys, two potential raptor nests were observed in the Project area (TM-UNK-01, TM- UNK-02) (Figure 1). The nests were not observed to be active during surveys. In addition, two Red-tailed Hawks were identified on several occasions flying over the Project area. Several large stands of deciduous trees with the potential to support raptor nests were observed throughout the Project area and within a 0.5 mile buffer of the Project area. The east side of the Project area in the riparian corridor along the South Platte River was noted to have a relatively high abundance of potential nesting sites Tucson South Sand and Gravel Mine —Brighton, Colorado 15 2019 Biological Resources Inventory Report 2.2.2.3 Listed Species —Habitat Suitability Assessment Results All federally listed species in the USFWS IPaC summary were determined to be unlikely to occur in the desktop analysis (Table 2). Field surveys confirmed the information provided in Table 3. Desktop analysis determined that there was potential for five state -listed species to occur or to have suitable habitat in the Project area. These five species included burrowing owl (ST), brassy minnow (ST), plains minnow (SE), suckermouth minnow (SE), and river otter (ST). The field survey effort documented suitable habitat for all five of the state listed species. 2.2.2.4 General Vegetation Results The field survey identified 47 species of native and introduced plants within the Project area. These plant species are listed in Table 6. Table 6: Vegetation Observed in the Project Area, July 6 and 7, 2017 Russian knapweed Acroptilon repens Listed noxious weed Crested wheatgrass Agropyron cristatum Introduced herbaceous species Desert madwort Alyssum desertorum Introduced herbaceous species Common ragweed Ambrosia artemisiifolia Native herbaceous species Perennial ragweed Ambrosia psilostachya Native herbaceous species Pricklypoppy Argemone hispida Native herbaceous species Smooth brome Bromus inermis Introduced herbaceous species Downy brome Bromus tactorum Listed noxious weed Plumeless thistle Carduus acanthoides Listed Noxious weed Musk thistle Carduus nutans Listed Noxious weed Diffuse knapweed Centaurea diffuse Listed noxious weed Lambs quarters Chenopodium album Introduced herbaceous species Oakleaf goosefoot Chenopodium glaucum Introduced herbaceous species Canada thistle Cirsium arvense Listed noxious weed Field bindweed Convolvulus arvensis Listed noxious weed Horseweed Conyza canadensis Introduced herbaceous species Barnyard grass Echinochola crus-gall Introduced grass Russian olive Elaegnus angustifolia Listed noxious weed Slender wheatgrass Elymus trachycaulus Native herbaceous species Annual wheatgrass Eremopyrum triticeum Introduced grass Leafy spurge Euphorbia escula Listed noxious weed Broomweed Gutierrezia sarothrae Native shrub Hairy false goldeneaster Heterotheca villosa Native herbaceous species Foxtail barley Hordeum jubatum Native herbaceous species Baltic rush Juncus balticus Native herbaceous species Kochia Kochia scoparia Native herbaceous species Prickly lettuce Lactuca serriola Introduced herbaceous species Clasping peppenneed Lepedium perfoliatum Introduced herbaceous species 16 Tucson South Sand and Gravel Mine —Brighton, Colorado 2019 Biological Resources Inventory Report Table 6: Vegetation Observed in the Project Area, July 6 and 7, 2017 Common Name Scientific Name Notes , Russian knapweed Acroptilon repens Listed noxious weed Whitetop Lepidum draba Introduced herbaceous species White horehound Marrubium vulgare Introduced herbaceous species Scotch cottonthistle Onopordum acanthium Introduced herbaceous species Reed canarygrass - Phalaris arundinaceae Introduced herbaceous species Annual rabbitsfoot grass Polypogon monspeliensis Introduced herbaceous species Plains cottonwood Populus deltoides ssp. Monolifera Native tree Curly dock Rumex crispus Introduced herbaceous species Peach -leaf willow Salix amygdaloides Native tree Coyote willow Salix exigua Native tree Hardstem bulrush Schoenoplectus acutus Native herbaceous species Common threesquare Schoenoplectus pungens Native herbaceous species Tall tumblemustard Sisymbrium altissimum Introduced herbaceous species Buffalo -bur Solanum rostratum Introduced herbaceous species Tamarisk Tamarix chinensis Introduced herbaceous species Dandelion Taraxacum officinal° Introduced herbaceous species Narrowleaf cattail Typha angustifolia Introduced herbaceous species Broad -leaf cattail Typha latifolia Introduced herbaceous species American elm Ulmus americana Native tree American speedwell Veronica americana Native herbaceous species Seven main cover types were observed during the field survey and are shown in Figure 3: forested riparian floodplain, mowed grassland, fallow corn field, invasive annual grassland, invasive annual/biannual forbland, and riparian/ herbaceous wetland. Desktop analysis indicated that shortgrass prairie would be the dominant native ecosystem type in the Project area under natural conditions. No areas with undisturbed shortgrass prairie were observed during the field survey. Elevation contours are shown in Figure 3 to illustrate the vegetation in relation to existing topography. Table 7 lists each cover type, the dominant species present in each cover type, and the approximate height of the vegetation for each cover type. Table 7: Cover Type and Percent of Project area Covet CYO.., n Percer� of Study Area n SpeciesGl eni (App... x t ightof Sp in Cover Tine Forested Riparian floodplain 10.1 4 Plains cottonwood, peach -leaf willow, coyote willow (10-50 feet tall) Mowed grassland 2.9 1.0 Poe sp. (3-6 inches tall) Fallow corn field 30.3 12 Maize sp. (6-12 inches tall) Tucson South Sand and Gravel Mine —Brighton, Colorado 17 2019 Biological Resources Inventory Report Table 7: Cover Tvoe and Percent of Project area Cover Tye Total Acreage in Study Area=" Percent of Study Area . Dominant Species Present (Approximate Height of Species in Cover Type) Invasive annual grassland 105.5 41 Slender wheatgrass, annual wheatgrass, smooth brome, downy brome, crested wheatgrass (6-36 inches tall) Invasive annual/biannual forbland 94.8 37 Kochia, field bindweed, curly dock, lambs quarters (6-48 inches tall) Open water /herbaceous wetland 12.1 5 Narrowleaf cattail, broadleaf cattail, hardstem bulrush (3-8 feet tall) 22.2.5 Relationship of Present Vegetation Types to Soil Types Soil types from the NRCS database (BRCS 2017) are shown in Figure 4. Table 8 describes the vegetation for each soil type denoted on the attached map. Table 8: Relationship Between Vegetation Types and Soils Types NRCS So'I Type Acreage ,. In Project , . ,. area Per tof eoverin Project'area Cover Loamy alluvial land, gravelly substratum 7.6 2.9 Fallow Corn Field 4.6 1.8 Forested Riparian Floodplain 67.7 26.3 Invasive Annual / Biannual Forbland 51.7 20.0 Invasive Annual Grassland 0.1 0.1 Mowed Grassland 3.0 1.2 Riparian / Herbaceous Wetland Loamy alluvial land, moderately wet 16.7 6.5 Fallow Corn Field 17.6 6.8 Invasive Annual / Biannual Forbland 39.8 15.4 Invasive Annual Grassland 2.3 0.9 Mowed Grassland 1.6 0.6 Riparian / Herbaceous Wetland 0.2 0.1 Forested Riparian Floodplain Sandy alluvial land 6.0 2.3 Fallow Corn Field 4.2 1.6 Forested Riparian Floodplain 3.9 1.5 Invasive Annual / Biannual Forbland 1.1 0.4 Invasive Annual Grassland 0.5 0.2 Mowed Grassland 1.0 0.4 Riparian / Herbaceous Wetland Water 1,0 0.4 Forested Riparian Floodplain 4.8 1.9 Riparian / Herbaceous Wetland <0.1 <0.1 Invasive Annual / Biannual Forbland <0.1 <0.1 Fallow Corn Field 18 Tucson South Sand and Gravel Mine —Brighton, Colorado 2019 Biological Resources Inventory Report 2.2.2.6 Listed Noxious Weed Inventory Results Table 9 lists the seven species of state listed noxious weeds that were observed in the Project area during the field surveys. Four list B species were identified in the Project area and two List C noxious weeds were identified. Large infestations of downy brome were identified throughout the Project area. Table 9: Noxious Weed Species Observed During Field Surveys B or Cr j from mon Name Scientific Name _ State Managemen o my •. List A Weeds None observed. — — List B Weeds Scotch cottonthistle Oncpordum acanthium Contain: Figure 20.01 Russian -olive Elaeagnus angustifolia Eliminate by 2022 Musk thistle Carduus nutans Eliminate by 2022 Russian knapweed Acroptilon repens Contain: Figure 14.01 List C Weeds Downy borne Bromus tectorum Control up to landowners' discretion Field bindweed Con volvulus arvensis Control up to landowners' discretion Source: CDA (2017b) 1 List B: the state of Colorado and Adams Carty have developed noxious weed management plans to stop the continued spread of these species. Figure numbers refer to containment maps included in the 2015 Noxious Weed Act —Rules and Regulation Containment Figures by Counties (CDA 2017b.) List C: widespread and well -established noxious weed species for which control is recommended but not required by the state. 3. Conclusions This biological resources assessment evaluated major categories of resources including special status species, general wildlife and vegetation, and state listed noxious weeds. The special status species included assessment of federal and state listed species, raptors, and migratory birds. 3.1 Federal and State Listed Species No federal listed species were determined to have suitable habitat in the Project area. Five state -listed species were determined to have suitable habitat and potential to occur within the Project area including burrowing owl (ST), brassy minnow (ST), plains minnow (SE), suckermouth minnow (SE), and river otter (ST). These species are protected against take under CRS 33-2-105. Species -specific mitigation measures for each species are described in Section 2.2.1.4 and are summarized in Table 10 below. All state threatened and state endangered species within the Project area will be protected against take under CRS 33-2-105. Table 10: Mitigation Measures for State -Listed Species With Potential To Occur in the Project Area Gammon t Scien j �..,. $�tus Mitigation Mau Burrowing Owl Athena cunicularia ST Pre -construction surveys for burrowing owls according to CPW- recommended survey protocol would be conducted in these locations if construction occurs during the burrowing owl breeding season (March Tucson South Sand and Gravel Mine —Brighton, Colorado 19 2019 Biological Resources Inventory Report Table 10: Mitigation Measures for State -Listed Species With Potential To Occur in the Project Area coal n ientific fame Mitigation Measures 15 —October 31). If nesting burrowing owls are observed, the nesting location will be documented, and AI will notify the Colorado Division of Mining, Reclamation, and Safety. Al will implement the CPW- recommended 150 -foot non -encroachment buffer from active burrows until a qualified biologist can confirm owls have migrated or moved nesting location 150 feet outside the Project area. Brassy minnow Hybognathus hankinsoni ST These have potential to occur in perennial and intermittent waters intersected by the Project. Perennial and intermittent streams in the Project area will be avoided. No impacts to these species are expected. Plans Minnow Hybognathus placitus SE Suckermouth Minnow Phenacobius mirabilis SE River Otter Lontra canadensis ST The Project would avoid direct impacts to the river otter and impacts to potential river otter breeding habitat along the South Platte River and its associated riparian area including potential natal dens for the river otter. No impacts to the South Platte River, the river otter, or its habitat is anticipated. 3.2 Migratory Birds Two potential raptor nests were observed in the Project area during the raptor nest survey. Neither were confirmed to be active at the time of the survey. Nest surveys will be completed prior to the first year of construction during the winter months prior to leaf -out of trees in the Project. Results of the nest surveys will be provided to the DRMS. If an active raptor nest is encountered during pre -construction surveys, Al will follow the recommendations of CPW's "Recommended Buffer Zones and Seasonal Restrictions for Colorado Raptors" (CPW 2008). Construction disturbance is not expected to affect raptors to the extent that injury, loss of productivity, or nest abandonment occurs. All migratory birds within the Project area will be protected against take under the MBTA. 3.3 Vegetation Resources The field survey identified 47 species of native and introduced plants within the Project area. Seven main cover types were observed during the field survey and are shown in Figure 3: forested riparian floodplain, mowed grassland, fallow corn field, invasive annual grassland, invasive annual/biannual forbland, and riparian/ herbaceous wetland. Shortgrass and prairie would be the dominant native ecosystem type in the Project area under natural conditions, which were not observed during the field survey. 3.4 Listed Noxious Weeds Four List B species were identified in the Project area and two List C noxious weeds were identified. No large infestations of noxious weeds were identified. Adams County has listed Russian olive and musk thistle for eradication by 2022. Downy brome, in particular, was observed in several large dense patches. Tetra Tech recommends consultation with the Adams County noxious weed coordinator to determine requirements for control of noxious weeds prior to construction. 20 Tucson South Sand and Gravel Mine —Brighton, Colorado 2019 Biological Resources Inventory Report 4. Literature Cited Ackerfield, Jennifer. 2015. Flora of Colorado. Botanical Research Institute of Texas (BRIT®). http://shop.brit.org/products/coloradoflora. CDA (Colorado Department of Agriculture). 2017. Colorado Noxious Weeds (Including Watch List), F rtivp.&larch 31„2Q17,Availabla Qnline: https://www.Colorado.gov/pacificsites/default/files/NoxiousWeed List12 10.14. pdf. . 2017. Noxious Weed Rule Figures by County. Accessed July 2017. Available online: https://drive.google.com/drive/folders/0B6Mf20WCD59gdWFQVkIFS1 E0azg. Accessed January 2017. Chapman, S., Omernik, J., Freeouf, J., Huggins, D., McCauley, J., Freeman, C., Steinauer, G., Angelo, R., and Schlepp, R. 2001. Ecoregions of Colorado (color poster with map, descriptive text, summary tables, and photographs): Reston, Virginia, U.S. Geological Survey (map scale 1:1,950,000). CNHP (Colorado Natural Historical Program) 2015a. Colorado Butterfly Plant Species Profile. Available online: http://www.cnhp.colostate.edu/download/Projects/rareplants/pdfs/20240. pdf. Accessed July 2017. . 2015b.Ute Ladies' -tresses orchid species profile. Available online: http://www.cnhp.colostate.edu/download/Projects/rareplants/pdfs/20240.pdf. Accessed June 2017. CPW (Colorado Parks and Wildlife). 2017. Threatened and Endangered Species List. Available online: http://cpw.state.co.us/leam/Pages/SOC-ThreatenedEndangeredList.aspx. Accessed June 2017. . 2016a. Bald Eagle Shapefile. Accessed June 2017. Available online: https://www.arcgis.com/home/item. html?id=30cc9afded9c44d8835141 f98f0c485a. . 2016b. Species profiles. Available online: http://cpw.state.co.us/learn/Pages/SpeciesProfiles.aspx. Accessed July 2017. . 2016c. Species activity data. Shapefile. Available online: http:/lwww.arcgis.com/home/item. html?id=190573c5aba643a0 bc058e6f7f0510b7#!. . 2008. Raptor Buffer Guidelines. Available online https://cpw. state.co. us/Documents/WildlifeSpecies/LivingWithWildlife/RaptorBufferGuidelines200 8.pdf. Fitzgerald, J.P., C.A. Meaney, and D.M. Armstrong. 1994. Mammals of Colorado. University Press of Colorado. Niwot, Colorado. Tucson South Sand and Gravel Mine —Brighton, Colorado 21 2019 Biological Resources Inventory Report Fry, J., Xian, a, Jin, S., Dewitz, J., Homer, C., Yang, L., Barnes, C., Herold, N., and Wickham, J., 2011. Multi Resolution Land Characteristics Consortium National Land Cover Dataset Compilation, PE&RS, Vol. 77(9):858-864. Hammerson, G.A. 1999. Amphibians and Reptiles in Colorado. Second Edition. University Press of Colorado (Niwot, Colorado) and Colorado Division of Wildlife. Johnson, Dan. 2007. Fish of Colorado — Field Guide. Adventure Publications, Inc. Cambridge, MN. Nico, L., J. Larson, T.H. Makled and A. Fusaro. 2017. Phenacobius mirabilis. USGS Nonindigenous Aquatic Species Database, Gainesville, FL. https://nas.er.usgs.gov/queries/FactSheet.aspx?SpecieslD=617. Accessed July 2017 NRCS (U.S. Department of Agriculture -Natural Resources Conservation Service). 2017. Soil Survey Geographic (SSURGO) Database. Shapefile. Accessed July 8, 2017. Available online: http://sdmdataaccess.nrcs.usda.gov/. Sibley, David Allen. 2014. Sibley Guide to Birds. Second Edition. Knopf Publishing Group. Sullivan et al. 2009. Fish of the Rockies. Lone Pine Publishing. Edmonton, AB. Tetra Tech. 2018. Aggregate Industries Tucson South Mine Wetland Delineation Report. USDA (U.S. Department of Agriculture -Farm Service Bureau). 2015. National Agricultural Imagery Program. Aerial photography for Project location. USFWS (U.S. Fish and Wildlife Service). 2017a. Critical Habitat Map Service. Accessed July 2017. Available online: http://ecos.fws.gov/ecp/report/table/critical-habitat.html. . 2017b. Mountain -Prairie Region Endangered Species Resource Materials. Accessed July 2017. http://www.fws.gcrv/mountain-prairie/es/plants.php. . 2013. MBTA Protected Birds. Accessed 2/2/2017. Available online: https://www.fws.gov/birds/policies-and-regulations/laws-legislations/migratory-bird-treaty-act. php. . 2010. Preble's Meadow Jumping Mouse Block Clearance Zone. Available online: https://www.fws.gov/mountain-prairie/species/mammals/preble/BLOCK_CLEARANCE/11-23- 2010_USFWS_Prebles_Block_Clearance_Map_for the_Denver Metro Area.pdf. USGS (U.S. Geologic Survey). 2015b. The National Map. Raster. Accessed July 2017. Available online: ftp://nhdftp.usgs.gov/DataSets/Staged/SubRegions/. 22 Tucson South Sand and Gravel Mine —Brighton, Colorado 2019 Biological Resources Inventory Report This page intentionally left blank. 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Y!*.:° S""` ".' +w ,-,,,, ,: T.-cat..-,••STC74.;.:41Nit-w..s .4t aye. . o:41 .e Z:ate; SC al_fCaal _ , . s Vegetation Communities ��' Forested Riparian Floodplam Mowed Grassland �..sv2 Fallow Corn Field Invasive Annual Grassland Invasive Annual/ Biannual Fortland Open Watar / Herbaceous Wetland 5 0d2 E10 Tuscon South Mine Project Figure 4 NRCS Soil Types Adams County, CO February 2019 PrciectArea Solt Types iTal Loamy alluvial land gravelly substratum C,;°1, Loamy alluvial land moderately wet Sandy alluvial land - 1 Terrace escarpments Water Wet aluvlal land (NHD) Hydrology Perennial Stream — Intermittent Stream Canal/Ditch Transportation State Hghway 0 250 500 Feet tuba 13800 Wenp.bd.12034 EjTETRA TECH 2019 Biological Resources Inventory Report Attachment 1: 2019 Biological Resources Inventory Report This page intentionally left blank. STATE OF COLORADO COUNTY OF ADAMS At a regular meeting of the Board of County Commissioners for Adams County, Colorado, held at the Administration Building in Brighton, Colorado on the 5th day of May, 2008 there were present: Alice J. Nichol Chairman Larry W. Pace Commissioner W.R. Fischer Commissioner Hal B. Warren County Attorney Kristen Hood, Deputy Clerk of the Board when the following proceedings, among others were held and done, to -wit: RESOLUTION ADOPTING REVISIONS TO THE ADAMS COUNTY NOXIOUS WEED MANAGEMENT PLAN WHEREAS, the Board of County Commissioners, County of Adams, State of Colorado, is a local governing body responsible for implementation of the Colorado Noxious Weed Act; and, WHEREAS, the Colorado Noxious Weed Act, C.R.S. § 35-5.5-107(4)(a) et seq., provides that the management plan shall be reviewed at regular intervals but not less often that once every three years by the local advisory board; and, WHEREAS, a revised plan was developed by the Department of Parks and Community Resources and the Adams County Weed Advisory Board consistent with the Act; and, WHEREAS, the Adams County Noxious Weed Management Plan is amended to revise sections that are in conflict with current law; and, WHEREAS, the Board of County Commissioners have the authority to approve, modify, or reject any amendments made to the weed management plan, NOW, THEREFORE, BE IT RESOLVED by the Board of County Commissioners of the County of Adams, State of Colorado, that the Adams County Noxious Weed Management Plan be amended as follows. 1. Appendix A will include Colorado State List A, B, and C noxious weeds, and specific management objectives. 2. Appendix B will include the Adams County Enforcement Policy. 3. Adams County Noxious Weed "B" List species include: Japanese Knotweed, Polygonum cuspidatum and Common Reed, Phragmites australis. All previous Adams County designated noxious weeds, and their management objectives have been assimilated by new state weed laws. Upon motion duly made and seconded the foregoing resolution was adopted by the following vote: Nichol Aye Pace Aye Fischer Aye Commissioners STATE OF COLORADO County of Adams I, Karen Lone , County Clerk and ex -officio Clerk of the Board of County Commissioners in and for the County and State aforesaid do hereby certify that the annexed and foregoing Order is truly copied from the Records of the Proceedings of the Board of County Commissioners for said Adams County, now in my office. IN WITNESS WHEREOF, I have hereunto set my hand and affixed the seal of said County, at Brighton, Colorado this 5th day of Hu, A.D. 2008. County Clerk and ex -officio Clerk of the Board of County Commissioners Karen Long: By: Deputy Adams County Noxious Weed Management Plan Revised March 2008 Adams County Noxious Weed Management Plan Table of Contents I. Introduction A. Purpose Of This Plan 3 B. Enactment Authority 3 C. Jurisdiction And Scope Of Plan 3 D. Definitions 4 II. Designation of Noxious Weeds A. State Listed Noxious Weeds 6 1. List A Species 6 2. List B Species 7 3. List C Species .7 B. County Noxious Weeds 8 III. Objectives and Goals A. Objectives 8 B. Goal 8 IV. Plan Components A. Prevention Measures 9 B. Educational Programs 9 C. Mapping 10 D. Intergovernmental Agreements and Contracts 10 E. Management Plan Evaluation 10 V. Enforcement A. Private Landowner 10 VI. Appendices A. Adams County Noxious Weed Enforcement Policy 10 B. State Guidelines and Management Strategies 25 1. Definitions 25 2. General Provisions 25 3. List A Noxious Weed Management Objectives 26 4. List B Noxious Weed Management Objectives 28 3. List C Noxious Weed Management Objectives 30 2 Adams County 2008 Noxious Weed Management Plan I. Introduction A. Purpose of This Plan The purpose of this Adams County Noxious Weed Management Plan is to provide guidelines for effectively managing designated noxious weeds, which constitute a present threat to the natural resources of lands in unincorporated Adams County. This plan implements the mandates of the Colorado Noxious Weed Act (also referred to herein as the Act) and 8CCR1206-2, revisions to the Act (also referred to herein as part of the Act). Specific management practices, directed by the Act are integrated in the County plan. Educational outreach, preventive measures, and good stewardship components are also included. It is this plan's intent to incorporate those options that are the least environmentally damaging, yet practical, timely, and economically feasible. B. Enactment Authority The Colorado Noxious Weed Act (C.R.S. §35-5.5-101, et seq) was signed into state law in 1990, amended in 1996 and revised in 2003. The Act states that certain noxious weeds pose a threat to the natural resources of Colorado. It also states that it is the duty of all persons to use integrated methods to manage noxious weeds if the same are likely to be materially damaging to the land of neighboring landowners. It further directs that the Board of County Commissioners of each county in the state shall adopt a Noxious Weed Management Plan for all unincorporated land within the county. The Act directs the Board of County Commissioners to appoint a local advisory board, whose power and duties are threefold: 1. Develop recommended management criteria and integrated weed management plans for managing designated noxious weeds; 2. Declare noxious weeds and any state noxious weeds designated by rule to be subject to integrated management; and 3. Recommend to the Board of County Commissioners that certain landowners be required to submit integrated weed management plans for managing designated noxious weeds on their properties. The jurisdictional area of the Adams County Board of Commissioners is all of the unincorporated lands within the County. This plan shall be referred to as the Adams County Noxious Weed Management Plan, or the County Management Plan (CMP). It was developed by the Adams County Weed Advisory Board (also referred to herein as County Advisory Board). C. Jurisdiction and Scope of Plan This plan shall apply to all subject lands within Adams County. It does not preclude the County from entering into intergovernmental agreements with other governmental entities towards managing noxious weeds under the Colorado Noxious Weed Act. The Adams County Weed Office (reffered to herein as the Weed Office) is aware that the Federal Noxious Weed Act (1974), as amended by Section 15 (management 3 of Undesirable plants on Federal Lands (1990)), directs federal agencies to have an office or person trained to coordinate a noxious weed management program, to adequately fund the program, to implement cooperative agreements and to conduct integrated weed management. It also directs that such agencies manage on Federal lands those designated noxious weeds on Federal lands within the county. The Weed Office recognizes that a Memorandum of Agreement regarding noxious weed management was signed in Colorado in 1996 among 13 federal and state agencies with land management and natural resource protection responsibilities. D. Definitions The following definitions shall apply to teens used in this plan: 1. "Act": the Colorado Noxious Weed Act, Article 5.5 of Title 35, C.R.S. § 35-5.5-101, et seq., as amended. 2. "CMP": the Adams County Noxious Weed Management Plan, and as further defined under "Management Plan" below. 3. "County": the unincorporated areas of the County of Adams (Adams County) which are owned and managed by Adams County. 4. "County Advisory Board": the individuals appointed by the Board of County Commissioners, Adams County, to serve on the Adams County Weed Advisory Board and advise the County on matters of management of noxious weeds. 5. "IMP": an individual noxious weed management plan, as further defined under "Management Plan" below. 6. "Infestation": to have overrun or inhabit, so as to be harmful or bothersome. 7. "Integrated Management": the planning and implementation of a coordinated program utilizing a variety of methods for managing noxious weeds, the purpose of which is to achieve desirable plant communities. Such methods may include but are not limited to education, preventive measures, good stewardship, and the following techniques: (a) "Biological management": which means the use of an organism to disrupt the growth of noxious weeds. (b) "Chemical management": which means the use of herbicides or plant growth regulators to disrupt the growth of noxious weeds. (c) "Cultural management": which means methodologies or management practices that favor the growth of desirable plants over noxious weeds, including maintaining an optimum fertility and plant moisture status in an area, planting at optimum density and spatial arrangement in an area and planting species most suited to an area. 4 (d) " Mechanical management": which means methodologies or management practices that physically disrupt plant growth, including tilling, mowing, burning, flooding, mulching, hand -pulling, hoeing and grazing. 8. "Landowner": any owner of record of federal, tribal, state, county, municipal or private land. 9. "Local advisory board": The Adams County Noxious Weed Management Advisory Board are those individuals appointed by the Adams County Board of Commissioners to advise on matters of noxious weed management. 10. "Local governing body": The Adams County Board of Commissions. 11. "Local Noxious Weed": any plant of local importance which has been declared a noxious weed by the Commissioners. 12. "Management": any activity that prevents a plant from establishing, reproducing, or dispersing itself. 13. "Management objective": means the specific, desired result of integrated management efforts and includes: (a) "Eradication": which means reducing the reproductive success of a noxious weed species or specified noxious weed population in largely un-infested regions to zero and permanently eliminating the species or population within a specified period of time. Once all specified weed populations are eliminated or prevented from reproducing, intensive efforts continue until the existing seed bank is exhausted. (b) "Containment": which means maintaining an intensively managed buffer zone that separates infested regions, where suppression activities prevail, from largely un-infested regions, where eradication activities prevail. (c) "Suppression": which means reducing the vigor of noxious weed populations within an infested region, decreasing the propensity of noxious weed species to spread to surrounding lands, and mitigating the negative effects of noxious weed populations on infested lands. Suppression efforts may employ a wide variety of integrated management techniques. (d) "Restoration": which means the removal of noxious weed species and reestablishment of desirable plant communities on lands of significant environmental or agricultural value in order to help restore or maintain said value. 14. "Management Plan": a noxious weed management plan developed by any person, or the Local Advisory Board, using integrated management. The "County Management Plan" (CMP, or this plan) shall refer to the integrated management plan adopted by the County Advisory Board for the subject lands. An "Individual Management Plan" (IMP) shall refer to an integrated management plan for a specific property or group of properties as submitted by a landowner(s), and approved by the County Advisory Board, or its designated agent. 15. "Noxious Weed": an alien plant or parts of an alien plant that has been designated by rule as being noxious or has been declared a noxious weed by the Colorado Agriculture Commissioner, or Adams County Board of Commissioners, and meets one or more of the following additional criteria: (a) Aggressively invades or is detrimental to economic crops or native plant communities; (b) Is poisonous to livestock; 5 (c) 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. 16. "Person" or "Occupant": an individual, partnership, corporation, association, or federal, state, or local government or agency owning, occupying, or controlling any land, easement, or right-of-way, including but not limited to any city, county, state, or federally owned and controlled highway, drainage, or irrigation ditch, spoil bank, borrow pit, gas and oil pipeline, high voltage electrical transmission line, or right-of-way for a canal or lateral. 17. "Weed Supervisor": the agent or employee designated by the Board of County Commissioners to carry out the Noxious Weed Management Plan for Adams County. IL Designation of Noxious Weeds A. State -Listed Noxious Weeds State noxious weed list and rules and regulations under the Act are developed by the Commissioner of the Colorado Department of Agriculture (CDA). The most recent changes made to the Act pertain to the classification of noxious weeds into one of several categories. The categories include the A, B, and C Lists. List A: "Rare noxious weed species that are subject to eradication wherever detected statewide in order to protect neighboring lands and the state as a whole". The Weed Office will monitor and comply with any amendments to the rules and regulations. Any weeds designated by the Colorado Noxious Weed Act for eradication containment, or suppression are automatically included in the Adams County Weed Management Plan. The Act is subject to continuous revision and the Adams County Weed Plan will be updated no less than every three years. See Appendix B for the Rules Pertaining to the Administration and Enforcement of the Colorado Noxious Weed Act. 1. State of Colorado A List Noxious Weeds African rue, (Peganum harmala) Camelthom, (Alhaji pseudalhagi) Common crupina, (Crupina vulgaris) Cypress spurge, (Euphorbia cyparissias) Dyer's woad, (Isatis tinctoria) Giant salvinia, (Salvinia molesta) Hydrilla, (Hydrilla verticillata) Meadow knapweed, (Centaurea pratensis) Mediterranen sage, (Salvia aethiopis) Medusahead, (Taeniatherum caput-medusae) Myrtle spurge, (Euphorbia myrsinites) Orange hawkweed, (Hieracium aurantiacum) Purple loosestrife, (Lythrum salicaria) Rush Skeletonweed, (Chondrillajuncea) Sericea lespedeza, (Lespedeza cuneata) Squarrose knapweed, (Centaurea virgata) 6 Tansy ragwort, (Senecio jacobaea) Yellow starthistle, (Centaurea solstitialis) 2. State of Colorado B List Noxious Weed Species Absinth wormwood, (Artemisia absinthium) Black henbane, (Hyoscyamus niger) Bouncingbet, (Saponaria officinalis) Bull thistle, (Cirsium vulgare) Canada thistle, (Cirsium arvense) Chinese clematis, (Clematis orientalis) Common tansy, (Tanacetum vulgare) Common teasel, (Dipsacus fullonum) Corn chamomile, (Anthemis arvensis) Cutleaf teasel, (Dipsacus laciniatus) Dalmatian toadflax, broad-leaved (Linaria dalmatica) Dalmatian toadflax, narrow -leaved (Linaria genistifolia) Dame's rocket, (Hesperis matronalis) Diffuse knapweed, (Centaurea diffusa) Eurasian water milfoil, (Myriophyllum spicatum) Hoary cress, (Cardaria draba) Houndstongue, (Cynoglossum officinale) Leafy spurge, (Euphorbia esula) Mayweed chamomile, (Anhemis cotula) Moth mullein, (Verbascum blattaria) Musk thistle, (Carduus nutans) Oxeye daisy, (Chrysanthemum leucanthemum) Perennial pepperweed, (Lepidium latifolium) Plumless thistle, (Carduus acanthoides) Quackgrass, (Elytrigia repens) Redstem filaree, (Erodium cicutarium) Russian knapweed, (Acroptilon repens) Russian -olive, (Elaeagnus angustifolia) Salt cedar, (Tamarix chinensis, T. parviflora, and T. ramosissima) Scentless chamomile, (Matricaria perforate) Scotch thistle, (Onopordum acanthium) Scotch thistle, (Onopordum tauricum) Spotted knapweed, (Centaurea maculosa) Spurred anoda, (Anoda cristata) Sulfer cinquefoil, (Potentilla recta) Venice mallow, (Hibiscus trionum) Wild caraway, (Carum carvi) Yellow nutsedge, (Cyperus esculentus) Yellow toadflax, (Linaria vulgaris) 3. State of Colorado C List Noxious Weeds 7 Chicory (Cichorium intybus) Common burdock (Arctium minus) Common mullein (Verbascum thapsus) Common St Johnswort (Hypericum perforatum) Downy brome (Bromus tectorum) Field bindweed (Convolvulus arvensis) Halogeton (Halogeton glomeratus) Johnsongrass (Sorghum halepense) Jointed goatgrass (Aegilops cylindrica) Perennial sowthistle (Sonchus arvensis) Poison hemlock (Conium maculatum) Puncturevine (Tribulus terrestris) Velvetleaf (Abutilon theophrasti) Wild proso millet (Panicum miliaceum) B. County Designations The law defines noxious weeds as plant species that are not indigenous (native) to the state of Colorado and meet at least one of several criteria regarding their negative impacts upon crops, native plant communities, livestock, and the management of natural or agricultural systems. This definition applies to species listed by both state and local governing bodies. A local governing body may also adopt eradication, containment, or suppression standards that are more stringent than the standards adopted by the Colorado Department of Agriculture Commissioner. Any species subject to designation require a public hearing before the County Commissioners prior to being granted noxious status. All impacted landowners must be notified. 1. County Designated B List species: Japanese knotweed, (Polygonum cupidatum) Common Reed, (Phragmites australis) III. Objectives and Goals A. Objectives The objectives of this CMP are to: 1. Develop and implement integrated management programs for noxious weeds on County owned open space properties, easements and Rights -of -way. 2. Continue and improve educational programs that will effectively communicate noxious weed impacts and management methods. 3. Offer to provide landowners/occupants with technical support in establishing their I.M.Ps. 4. Work with state and federal agencies towards establishing effective integrated noxious weed management programs on their properties. 5. Outline processes for enforcing control of noxious weeds on private and public properties. 6. Select control methods according to 8 CCR1206-2 for A, B and C list species and for non - listed weeds select control methods that are practical, economically reasonable and least environmentally damaging. 8 B. Goals 1. Educate landowners/occupants and county employees on weed awareness, prevention, identification, containment and eradication strategies consistent with state statutes. 2. Concentrate on early detection and control of new noxious weed infestations. 3. Maintain a current noxious weed infestation map. 4. Develop and coordinate with Natural Resource Analyst, integrated weed management plans for open space properties, and easements and evaluate results annually. 5. Establish contact with landowners/occupants who have noxious weed infestations. 6. Protect native ecosystems from degradation by noxious weed infestations. 7. Work pro -actively with federal, state and local agencies, to manage noxious weeds on a regional scale. 8. Monitor county right-of-ways for new invaders and to evaluate right of way maintenance needs. 9. Maintain application, records and training requirements for seasonal staff. IV. Plan Components A. Prevention Measures Preventive control involves use of measures that will prevent the introduction or establishment of noxious weeds into areas not currently infested with noxious weeds. Prevention also includes the eradication of small, new infestations. These measures usually are the most practical and cost-effective means of integrated weed management. Preventive measures that have applicability to the subject lands are: 1) using weed -free seed and mulch, 2) promoting the Colorado Weed Free Hay and Forage program, 3) prioritizing weed management areas along routes of entry and dispersal, and 4) monitoring noxious weed infestations in bordering counties. With regard to measure number 3, the Weed Inspector and Public Works Department will control noxious weeds on County rights -of -way from May through October. Public education programs will emphasize weed infestation prevention. Sites found to have small infestations of a new, uncommon noxious weed will be given high priority for management purposes. A coordinated control effort with private landowners will be organized, where applicable. The Colorado Department of Transportation, railroad and ditch companies, and the Rocky Mountain Arsenal will be contacted. They will be encouraged to prevent noxious weed infestations, and to manage and prevent the spread of existing infestations. B. Educational Programs 1. Education of the public is a key component of integrated weed management. Emphasis will be made on continuing and expanding educational noxious weed programs, such as the following: 2. Timely media articles concerned with noxious weed identification and management. Emphasis will be made of the alien origin of noxious weeds and the consequences of not managing them. 3. Via the media and seminars, offer the assistance of the County Weed and Cooperative Extension offices in weed management and IMP matters. 4. Conduct landowner/occupant noxious weed management seminars or talks. 5. Distribute educational brochures and field visitor's questions at local fairs and events. 9 6. Conduct noxious weed identification, management, and awareness seminars with county parks and public works personnel. 7. Utilize Extension Fact Sheets when possible. Prepare informational brochures on integrated noxious weed management for the public. Make herbicide labels available at public and educational events. 8. Initiate and conduct test plots on integrated noxious weed management. Hold field days addressing same. 9. Provide training for seasonal applicators. C. Mapping Mapping is a valuable tool in integrated weed management. As such, the Weed Inspector will establish and maintain visual maps of past and current infestations of noxious weeds on subject land. From these, a graphic representation of weed management progress and needs will be evident. The primary goal of mapping is to record the noxious weed species present, the area infested, density of the infestation, soil types, groundwater depth, and other site factors pertinent to managing the infestation successfully. D. Intergovernmental Agreements and Contracts Intergovernmental Agreements (IGAs) and contracts are useful tools towards more effective noxious weed management among agencies and governments. Through cooperation, more is understood and more is done. Towards this end, the Weed Inspector will contact certain entities concerning compliance with the Act. Contracts and IGAs will be encouraged towards cooperative efforts in managing noxious weeds. Assistance will be offered towards helping each agency developing IMPs for their lands. The following organizations will be contacted: Colorado State Department of Transportation Colorado State Department of Parks and Recreation Colorado Division of Wildlife Colorado State Land Board County municipalities Rocky Mountain Arsenal Any other organizations when applicable. E. Roads Right -of -Ways (ROW) are inspected and noxious weed infestations treated on an annual basis. Since roads are a primary source of seed spread and new invader introductions, inspections and rapid response are critical in reducing future impacts. County responsibilities are outlined in the Act. The Weed supervisor works closely with Public Works and the Colorado Department of Transportation to coordinate activities and communicate in the management of noxious weeds along county ROWs. The County maintains a contract with a private applicator for weed control along state highways. F. Management Plan Evaluation The goals and plan of work in this CMP will be reviewed and evaluated at the regular meetings of the County Advisory Board. Any proposed additions or changes shall be approved by the County Advisory Board and the Board before becoming final. 10 The full CMP shall be reviewed and amended, as needed, at least every three years (C.R.S. 35-5.5- 107(4a)). Enforcement A. Noxious Weed Management on Private Properties Cooperation from all landowners/occupants regarding timely noxious weed management will be encouraged via positive communication and education efforts. The Weed Office or its agent will continue to apply herbicides to a limited acreage of noxious weeds on private lands by landowner or tenant request, consistent with County policies. Where noxious weeds are still found, an enforcement process will be initiated to ensure control of the weeds. The Adams County enforcement process is available for public review in Appendix A. The process is subject to change as a result of any revisions made to the Act, or from any judicial decision that affects the process. It is desirable that the Weed Office have work priorities with regard to enforcement activities on subject lands. This is due to the size of the subject area and to the number of landowners with existing noxious weed infestations. The following list prioritizes enforcement: Complaint properties Enforcement regions as mapped by the Weed Office. Lands bordering waterways (e.g. ditches, canals, rivers, creeks) 11 APPENDICES APPENDIX A ADAMS COUNTY NOXIOUS WEED ENFORCEMENT POLICY PURSUANT TO THE COLORADO NOXIOUS WEED ACT PART 1 GENERAL PROVISIONS Section 101. Title This Policy shall be known as and be referred to as the "Adams County Noxious Weed Enforcement Policy" and shall be effective throughout the unincorporated areas of Adams County. Section 102. Defmitions1 (1) "Act" means the Colorado Noxious Weed Act. (2) "Integrated management" means the planning and implementation of a coordinated program utilizing a variety of methods for managing noxious weeds, the purpose of which is to achieve desirable plant communities. Such methods may include but are not limited to education, preventive measures, good stewardship, and the following techniques: I C.R.S. § 35-5.5-103 (a) "Biological management" which means the use of an organism to disrupt the growth of noxious weeds. (b) "Chemical management" which means the use of herbicides or plant growth regulators to disrupt the growth of noxious weeds. (c) "Cultural management" which means methodologies or management practices that favor the growth of desirable plants over noxious weeds, including maintaining an optimum fertility and plant moisture status in an 12 area, planting at optimum density and spatial arrangement in an area, and planting species most suited to an area. (d) "Mechanical management" which means methodologies or management practices that physically disrupt plant growth, including tilling, mowing, burning, flooding, mulching, hand -pulling, hoeing, and grazing. (3) "Landowner" means any owner of record of state, municipal, or private land and includes an owner of any easement, right-of-way, or estate in the land. (4) "Local advisory board" means the Adams County Weed Advisory Board and are those individuals appointed by the local governing body to advise on matters of noxious weed management. (5) "Local governing body" means the Adams County Board of County Commissioners. (6) "Management" means any activity that prevents a plant from establishing, reproducing, or dispersing itself. (7) (8) "Management plan" means the noxious weed management plan developed by any person or the local advisory board using integrated management. "Noxious Weed" means an alien plant or parts of an alien plant that has been designated by rule as being noxious or has been declared a noxious weed by a local advisory board, and meets one or more of the following criteria: (a) Aggressively invades or is detrimental to economic cropsor native plant communities; (b) Is poisonous to livestock; (c) Is a carrier of detrimental insects, diseases, or parasites; (d) The direct or indirect effect of the presence of this plant is detrimental to the environmentally sound management of natural 13 or agricultural ecosystems. (9) "Noxious weed management" means the planning and implementation of an integrated program to manage noxious weed species. (10) "Occupant" means an individual, partnership, corporation, association, or federal, state, or local government or agency thereof owning, occupying, or controlling any land, easement, or right-of-way, including any city, county, state, or federally owned and controlled highway, drainage, or irrigation ditch, spoil bank, borrow pit, gas and oil pipeline, high voltage electrical transmission line, or right-of-way for a canal or lateral. (11) "Weed Office" means the Adams County Weed Office which is a delegate of the local governing body. Section 103. Scope and Effect of Policy - Exceptions to Provisions] (1) The provisions of this Policy relate to the general assembly's findings that noxious weeds have become a threat to the natural resources of Colorado and that an organized and coordinated effort must be made to stop the spread of noxious weeds. (2) This Policy facilitates a coordinated effort through the local advisory board that develops and oversees plans for the control of noxious weeds. (3) This Policy further recognizes that because the spread of noxious weeds can largely be attributed to the movement of seed and plant parts on motor vehicles and noxious weeds are becoming an increasing maintenance problem on highway right-of-ways in the state, local cooperative efforts have been undertaken to proceed with noxious weed management. (4) This Policy is designed in accordance with the statutory provisions of Colorado Revised Statutes section 35-5.5-101 et seq., as amended and more commonly referred to as the Colorado Noxious Weed Act. (a) The provisions of this Policy do not interpret, apply, or incorporate any provisions of the Colorado Pest Control District Act, codified at C.R.S. § 35-5-101 et seq. PART 2 IDENTIFICATION AND INSPECTION OF NOXIOUS WEEDS I C.R.S. § 35-5.5-102(1.5) 14 Section 201. Methods of Identification) (1) Private and Public Lands (a) The local governing body, through its delegates, agents, and employees, shall have the right to enter upon any premises, lands, or places whether public or private, during reasonable business hours for the purpose of inspecting for the existence of noxious weed infestations, when at least one of the following has occurred: (i) The landowner or occupant has requested an inspection; (ii) A neighboring landowner or occupant has reported a suspected noxious weed infestation and requested an inspection; or (iii) An authorized agent of the local government has made a visual inspection from a public right-of-way or area and has reason to believe that a noxious weed infestation exists; (iv) A Weed Office agent has inspected a current aerial satellite map of the property and determined there is reason to believe that a noxious weed infestation exists. (2) Where entry onto private premises is required to investigate the existence of noxious weeds, on -site inspections may be scheduled at any reasonable time upon the landowner or occupant's consent. If after notification landowner or occupant denies access to the inspector, the inspector may seek an inspection warrant issued by a municipal, county or district court having jurisdiction over the land. PART 3 NOTICE OF EXISTENCE OF NOXIOUS WEEDS. Section 301. Notice Letter (See Attachment A) (1) Private Lands2 C.R.S. § 35-5.5-109(1) 2 Id. at (3) (a) The Weed Office, acting as agent, delegate, or staff of the local governing body has the authority to notify the landowner or occupant of the presence of noxious weeds. The Notice from the Weed Office includes the following: 15 (i) the property inspection date; (ii) the Landowner and/or Occupant of Record; (iii) the property tax ID number and legal description of the property; (iv) the noxious weeds to be managed; (v) advisement to the landowner or occupant to manage the noxious weeds within ten days after receipt of notice; (vi) the best available control methods of integrated management; (vii) the options of notice compliance; (viii) the consequences for non-compliance with the notice; and (ix) an offer of weed office consultation in Management Plan Development; and (x) notice of Landowner and/or Occupant's right to request hearing before the Local governing body; and (xi) statement that Weed Office will seek Right of Entry from Local government body to enter property and manage identified noxious weeds unless Landowner and/or Occupant complies with notice or submits a written request for public hearing before Local governing body within ten days. (2) Public Lands' (a) The local governing body may give notice to any state board, department, or agency that administers or supervises state lands within the local governing body's jurisdiction, to manage noxious weeds on its land and naming them. (i) Such notice shall specify the best available method(s) of integrated management and will include the same information as itemized in Section 301(1) of this Policy. (b) Wherever possible, the local governing body shall consult with the affected state board, department, or agency in the development of a plan for the management of noxious weeds on the premises or lands. Section 302. Duty to Consult' Where possible, the Weed Office shall consult with the affected landowner or occupant in the development of a plan for the management of noxious weeds on the premises or lands. Section 303. Public and Private Lands - Landowner or Occupant Response' (1) Landowner or occupant shall respond within a reasonable time after receipt of notification, not to exceed ten (10) days, by any of the following: (a) Complying with the terms of the notification. (b) I C.R.S. § 35-5.5-110(1) 2 Id. at (4)(a); C.R.S. §35-5.5-110(2)(a) Acknowledging the terms of the notification and submitting an acceptable plan and schedule for the completion of the plan for compliance. 17 (c) Requesting an arbitration panel to determine the final management plan. The panel shall be selected by the local governing body and shall include: (i) A weed management specialist or weed scientist. (ii) A landowner of similar land in the same county. (iii) A third member chosen by agreement of the first two panel members. The landowner or occupant is entitled to challenge any one member of the panel, and the local governing body shall name a new panel member from the same category. The decision of the arbitration panel shall be final. (d) Requesting a public hearing before the Local governing body. PART 4 PUBLIC HEARING UPON LANDOWNER OR OCCUPANT'S REQUEST- PRIVATE LANDS Section 401. Landowner/Occupant Request for Public Hearing (1) In the event the landowner or occupant disputes the noxious weed notice or the Weed Office's process for managing or compelling the management of the identified noxious weeds, the Landowner or Occupant is entitled to a public hearing before the Local governing body. Requests for public hearing must be made to the Weed Office in writing within ten (10) days of receipt of the noxious weed notice letter. Public hearings will be scheduled and heard within thirty (30) days of the request. Section 402. Scheduling Public Hearings (1) It is the Weed Office's responsibility to schedule a public hearing before the local governing body and to give notice to the landowner or occupant of the date, time, and location of the hearing. The following materials must be submitted to the local governing body prior to the hearing: 18 (a) Copy of Notice of Hearing letter and certified mail receipt notifying landowner or occupant of Public Hearing (must be received by property owner not less than five (5) days prior to Public Hearing date); (b) Affidavit of Weed Office representative attesting to the following information: Weed Office inspected property and found the existence of noxious weeds; Notice of noxious weed infestation was sent via regular and certified U.S. mail to the landowner or occupant in accordance with C.R.S. §35-5.5-109(3); Landowner or occupant failed to respond and/or comply with the terms of the notice letter within a reasonable time; Landowner or occupant submitted a timely request for public hearing; Entry onto the landowners or occupants property is necessary to prevent the spread of the noxious weed. Section 403. Public Hearing (1) The Landowner or Occupant, or an attorney representing such individual or entity, will be allowed to present evidence on landowner or occupant's behalf. (2) A member of the Weed Office will need to be present at the public hearing to present evidence as to why the Weed Office should be allowed to enter the property and eradicate the noxious weeds. (3) The local governing body may either grant or deny the Weed Office's request for Right of Entry, or continue the matter to a subsequent date certain. (See Attachment F) Right of Entry may be granted for the limited purpose of allowing the Weed Inspector or his/her agent to enter onto private property to control the identified noxious weeds. (4) Right of Entry may be granted upon satisfaction of the following conditions: a. Adequate notice of the noxious weed infestation has been given to the landowner and/or tenant; b. The landowner/tenant has not complied with the notice; c. Management of the noxious weeds by the Weed Inspector or his/her agent is likely to prevent further noxious weed infestation. 19 Reasonable efforts will be made to notify landowners/occupants when a Right of Entry has been issued, and copy of the Right of Entry will be sent to the landowner/tenant via certified and regular mail. Section 404. Restrictions1 No management of noxious weeds on private property shall occur without applying the same or greater management measures to any land or rights -of -way owned or administered by the local governing body that are adjacent to the private property. PART 5 FAILURE TO COMPLY - PUBLIC LANDS Section 501. Generale In the event the state board, department, or agency fails to comply with the notice to manage the identified noxious weeds or implement the plan developed by the arbitration panel, the local governing body in whose jurisdiction the infestation is located may enter upon such lands and undertake the management of such noxious weeds or cause the same to be done. Section 502. Scheduling and Hearing The state board, department, or agency owning or occupying said public lands is afforded the same Scheduling and Hearing protections as provided to landowners or occupants of private lands under Sections 402 and 403 of this Policy. PART 6 POST -HEARING ASSESSMENT OF COSTS FOR TREATMENT AND ERADICATION OF NOXIOUS WEEDS Section 601. General If, after public hearing the local governing body, the local advisory board, or its agents and employees provide for and/or compel the management of such noxious weeds, the local governing body is entitled to recover certain costs. Section 602. Private Lands - Recoverable Costs/Method of Collection3 at (5)(b) 2 C.R.S. § 35-5.5-110(3) 3 C.R.S. § 35-5.5-109(5)(aXII) 20 (1) The local governing body is entitled to assess the whole cost thereof, including up to twenty (20) percent for inspection and other incidental costs in connection therewith, upon the lot or tract of land where the noxious weeds are located. (2) Such assessment shall be a lien against each lot or tract of land until paid and shall have priority over all other liens except general taxes and prior special assessments. (3) Such assessment may be certified to the county treasurer of the County to be collected in the same manner as provided for the collection of taxes. (4) Any funds collected shall be deposited in the local governing body's weed fund or any similar fund. Section 603. Landowner or Occupant Protest (1) The Weed Office shall send a "Payment Notice/Potential Lien Assessment" letter by certified and regular mail to the landowner or occupant prior to any assessment on landowner or occupant's property. (See Attachment G) (2) Landowner or occupant shall be given thirty (30) days from the date on the Notification Letter to respond. (a) In the event landowner or occupant fails to respond to the letter within the prescribed thirty (30) days, the Weed Office shall assess a lien on landowner or occupant's property and may certify such lien with the Adams County Treasurer. (See Attachments H and I) (b) If the landowner or occupant responds within the prescribed thirty (30) days and disputes the amount of the assessment, he or she is entitled to be heard before the local governing body as to his or her concerns. Section 604. Assessment of Costs Hearing (1) The landowner or occupant, or an attorney on his or her behalf, will be allowed to present testimony as to why the local governing body should not assess a tax lien on landowner or occupant's property for the costs outlined in the Notification of Lien letter. (2) A member of the Weed Office will need to be present at the public hearing to provide evidence favoring the imposition of a tax lien on landowner or occupant's property. (3) The Weed Office must show that prior to compelling the management of noxious weeds on landowner and/or occupant's property the Weed Office applied the same or greater management measures to any land or rights -of -way owned or 21 administered by the local governing body that are adjacent to the private property pursuant to Section 504 of this Policy. (4) The Weed Office must show that the level of management called for in the notice or the management plan developed by the arbitration panel has been successfully achieved pursuant to Section 605 of this Policy. (5) The local governing body may either grant or deny the lien assessment or continue the matter to a subsequent date certain. (6) If the local governing body grants the lien assessment, the Resolution for Certification of Assessed Costs as granted by the Local Governing Body is filed with the County Treasurer's Office. (Attachments H and I) Section 605. Limitations' The local governing body shall not assess the cost of providing for or compelling the management of noxious weeds on private property until the level of management called for in the notice or the management plan developed by the arbitration panel has been successfully achieved. Section 701. General (1) PART 7 PUBLIC LANDS - ASSESSMENT OF COSTS Any expenses incurred by the local governing body in the undertaking of management of noxious weeds on public lands shall be a proper charge against such state board, department, or agency which has jurisdiction over the lands. (a) (b) If not paid, such charge shall be submitted to the controller, who shall treat such amount as an encumbrance on the budget of the state board, department, or agency involved; or Such charge may be recovered in any court with jurisdiction over such lands. Section 702. Scheduling and Hearing I El. at (5)(c) 22 The state board, department, or agency owning or occupying said public lands is afforded the same Scheduling and Hearing protections as provided landowners or occupants of private lands under Sections 603 and 604 of this Policy. PART 8 MISCELLANEOUS ( Section 801. Additional provisions (1) It is the Weed Office's responsibility through reasonable efforts to determine whether the property with a suspected noxious weed infestation is occupied by an individual other than the landowner. (a) Reasonable efforts to determine the identity of the tenant and/or occupant may include one or more of the following: (b) (c) (i) mailing a copy of the notice to any dwelling on the real property, (ii) contacting the Farm Service Agency ("FSA"), (iii) asking the landowner for the identity of any tenant and/or occupant on the real property, any reasonable efforts taken by the Weed Office should be documented. If the Weed Office determines an individual(s) other than the landowner occupies the property, any and all applicable Notices should be sent to both landowner and occupant. (d) If the Weed Office determines an individual(s) other than the landowner occupies the property, any and all applicable Orders approved by the local governing body should be sent to both landowner and occupant. (2) The local governing body, through its delegates, agents, and employees, shall have the right to enter upon any premises, lands or places, whether public or private, during reasonable business hours for the purposes of ensuring compliance with any of the above requirements concerning noxious weed management and any other local requirements.' (3) No agent, employee, or delegate of the local governing body shall have a civil cause of action against a landowner or occupant for personal injury or property damage incurred while on public or private land for purposes consistent with the above requirements ' Id. at (6) 23 except when such damages were willfully or deliberately caused by the landowner or occupant.' (4) It shall be the duty of each local governing body and each state board, department or agency to confirm that all public roads, public highways, public rights -of - way, and any easements appurtenant thereto, under the jurisdiction of each such entity, are in compliance with the Act, and any violations of the Act shall be the financial responsibility of the appropriate local governing body or state board, department, or agency.2 I > at ('1) 2 C.R.S. § 35-5.5-112 24 APPENDIX B Rules Pertaining To the Administration and Enforcement of the Colorado Noxious Weed Act: (http://198.187.128.12/colorado/lpext.dll/Infobase4/1/56169/563 f6/56651? f=templates&fn=fs-main- do c.htm&q=Colorado%20Noxious%20Weed%20Act&x=Advanced&2.0#LPHitl ) 8CCR1206-2 Part 1 Definitions 1.1. "Act" means the Colorado Noxious Weed Act, § § 35-5.5-101 through 119, C.R.S. (2003). Eff 07/01/2007 1.2. "Compliance waiver" means a written exemption granted to a local governing body or landowner by the Commissioner that releases the local governing body and/or landowner from certain obligations of eradication for a specific population of a List A or List B species. Eff 07/01/2007 1.3. "Division" means the Colorado Division of Wildlife. Eff 07/01/2007 1.4. "Elimination" means the removal or destruction of all emerged, growing plants of a population of List A or List B species designated for eradication by the Commissioner. It is the first step in achieving eradication and is succeeded by efforts to detect and destroy newly emerged plants arising from seed, reproductive propagule, or remaining root stock for the duration of the seed longevity for the particular species. Eff 07/01/2007 1.5. "Infested acreage" means an area of land containing a noxious weed species, defined by the actual perimeter of the infestation as delineated by the canopy cover of the plants and excluding areas not infested. Eff 07/01/2007 1.6. "Population" means a group of designated noxious weeds of the same species occupying a particular geographic region and capable of interbreeding. Eff 07/01/2007 Part 2 General Provisions 2.1. At any time, affected persons may suggest and the Commissioner may approve additional prescribed integrated management techniques not specified in these rules for the eradication, containment, or suppression of designated state noxious weeds. Such approval may be site -specific or broadly applicable. The Commissioner will publish a list on the Colorado Department of Agriculture website (httn://www.aa.state.co.us/csd/weeds/Weedhome.html) of the herbicides, cultural techniques, and mechanical techniques approved for use under the specific state noxious weed management plans for List A and List B species. Eff 07/01/2007 2.2. As a condition for granting a compliance waiver releasing a local governing body and/or landowner from certain obligations of eradication, the Commissioner may require the local governing body and/or landowner to implement other specified management actions with respect to a specific population. Eff 07/01/2007 2.3. No recommendations or requirements in these rules concerning the use of herbicides are intended to contradict or supercede any other federal, state or local law regulating herbicide use. All use of herbicides to achieve any management objectives specified in these rules must comply with all applicable federal, state and local legal requirements, including but not limited to compliance with all directions for use, cautionary statements and any other requirements in the labeling of the particular herbicide product. Eff 07/01/2007 25 Part 3 List A Noxious Weed Species 3.1. List A of the Colorado noxious weed list comprises the following noxious weed species: Eff 07/01/2007 African rue (Peganum harmala) Eff 07/01/2007 Camelthorn (Alhagi pseudalhagi) Eff 07/01/2007 Common crupina (Crupina vulgaris) Eff 07/01/2007 Cypress spurge (Euphorbia cyparissias) Eff 07/01/2007 Dyer's woad (Isatis tinctoria) Eff 07/01/2007 Giant salvinia (Salvinia molesta) Eff 07/01/2007 Hydrilla (Hydrilla verticillata) Eff 07/01/2007 Meadow knapweed (Centaurea pratensis) Eff 07/01/2007 Mediterranean sage (Salvia aethiopis) Eff 07/01/2007 Medusahead (Taeniatherum caput-medusae) Eff 07/01/2007 Myrtle spurge (Euphorbia myrsinites) Eff 07/01/2007 Orange hawkweed (Hieracium aurantiacum) Eff 07/01/2007 Purple loosestrife (Lythrum salicaria) Eff 07/01/2007 Rush skeletonweed (Chondrilla juncea) Eff 07/01/2007 Sericea lespedeza (Lespedeza cuneata) Eff 07/01/2007 Squarrose knapweed (Centaurea virgata) Eff 07/01/2007 Tansy ragwort (Senecio jacobaea) Eff 07/01/2007 Yellow starthistle (Centaurea soistitialis) Eff 07/01/2007 3.2. All populations of List A species in Colorado are designated by the Commissioner for eradication. Eff 07/01/2007 3.3. It is a violation of these rules to allow any plant of any population of any List A species to produce seed or develop other reproductive propagules. Eff 07/01/2007 3.4. Prescribed management techniques must be applied to every population of List A noxious weeds present in Colorado to achieve the following objectives: Eff 07/01/2007 A. The plants of every population of List A species must be eliminated prior to seed development. Eff 07/01/2007 B. Once all mature plants are eliminated, appropriate efforts must be made to detect and eliminate new plants arising from seed, reproductive propagule, or root stock for the duration of the seed longevity for the particular species. Eff 07/01/2007 C. In order to ensure that seeds or other reproductive propagules are not produced or spread, any plant with flowers, seeds, or other reproductive propagules must be placed in sealed plastic bags and disposed of by: Eff 07/01/2007 1. high intensely burning in a controlled environment that completely destroys seed viability; Eff 07/01/2007 2. removal of plant materials to a solid waste landfill which covers refuse daily with six inches of soil or alternative material; or Eff 07/01/2007 3. any other method approved by the Commissioner. Eff 07/01/2007 26 3.5. Within one year of detection, any local governing body with a population of any List A species must provide to the State Weed Coordinator mapping data pertinent to each population including: Eff 07/01/2007 A. Species name Eff 07/01/2007 B. Population location(s) including distribution and abundance Eff 07/01/2007 C. Estimated infested acreage Eff 07/01/2007 3.6. State Noxious Weed Management Plans for List A Noxious Weed Species Eff 07/01/2007 3.6.1. African rue (Peganum harmala). In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for African rue: Eff 07/01/2007 A. The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner and digging, or other mechanical techniques approved by the Commissioner. Eff 07/01/2007 B. Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner. Eff 07/01/2007 C. Seed longevity is unknown. Eff 07/01/2007 3.6.2. Camelthorn (Alhagi pseudalhagi). In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for camelthom: Eff 07/01/2007 A. The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner and digging, or other mechanical techniques approved by the Commissioner. Eff 07/01/2007 B. Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or, (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner. Eff 07/01/2007 C. Seed longevity is at least several years. Eff 07/01/2007 3.6.3. Common crupina (Crupina vulgaris). In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for common crupina: Eff 07/01/2007 A. The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner and hand - pulling, digging, or other mechanical techniques approved by the Commissioner. Eff 07/01/2007 B. Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner. Eff 07/01/2007 C. Seed longevity is three years. Eff 07/01/2007 3.6.4. Cypress spurge (Euphorbia cyparissias). In addition to the requirements set forth in this Part 3 for the management of all List A species, the following conditions also apply for cypress spurge: Eff 07/01/2007 A. The prescribed integrated management techniques are limited to the use of herbicides approved by the Commissioner and hand - pulling, digging, or other mechanical techniques approved by the Commissioner. Eff 07/01/2007 B. Prescribed integrated management techniques do not include the use of: (1) any biocontrol agents or; (2) any herbicides, cultural techniques, or mechanical techniques other than those approved by the Commissioner. Eff 07/01/2007 27 Part 4 List B Noxious Weed Species 4.1. List B of the Colorado noxious weed list comprises the following noxious weed species: Eff 07/01/2007 Absinth wormwood (Artemisia absinthium) Eff 07/01/2007 Black henbane (Hyoscyamus niger) Eff 07/01/2007 Bouncingbet (Saponaria officinal's) Eff 07/01/2007 Bull thistle (Cirsium vulgare) Eff 07/01/2007 Canada thistle (Cirsium arvense) Eff 07/01/2007 Chinese clematis (Clematis orientalis) Eff 07/01/2007 Common tansy (Tanacetum vulgare) Eff 07/012007 Common teasel (Dipsacus fullonum) Eff 07/01/2007 Corn chamomile (Anthemis arvensis) Eff 07/01/2007 Cutleaf teasel (Dipsacus laciniatus) Eff 07/01/2007 Dalmatian toadflax, broad-leaved (Linaria dalmatica) Eff 07/01/2007 Dalmatian toadflax, narrow -leaved (Linaria genistifolia) Eff 07/01/2007 Dame's rocket (Hesperis matronalis) Eff 07/01/2007 Diffuse knapweed (Centaurea diffusa) Eff 07/01/2007 Eurasian watermilfoil (Myriophyllum spicatum) Eff 07/01/2007 Hoary cress (Cardaria draba) Eff 07/01/2007 Houndstongue (Cynoglossum officinale) Eff 07/01/2007 Leafy spurge (Euphorbia esula) Eff 07/01/2007 Mayweed chamomile (Anthemis cotula) Eff 07/01/2007 Moth mullein (Verbascum blattaria) Eff 07/01/2007 Musk thistle (Carduus nutans) Eff 07/01/2007 Oxeye daisy (Chrysanthemum leucanthemum) Eff 07/01/2007 Perennial pepperweed (Lepidium latifolium) Eff 07/01/2007 Plumeless thistle (Carduus acanthoides) Eff 07/01/2007 Quackgrass (Elytrigia repens) Eff 07/01/2007 Redstem filaree (Erodium cicutarium) Eff 07/01/2007 Russian knapweed (Acroptilon repens) Eff 07/01/2007 Russian -olive (Elaeagnus angustifolia) Eff 07/01/2007 28 Salt cedar (Tamarix chinensis, T. parviflora, and T. ramosissima) Eff 07/01/2007 Scentless chamomile (Matricaria perforata) Eff 07/01/2007 Scotch thistle (Onopordum acanthium) Eff 07/01/2007 Scotch thistle (Onopordum tauricum) Eff 07/01/2007 Spotted knapweed (Centaurea maculosa) Eff 07/01/2007 Spurred anoda (Anoda cristata) Eff 07/01/2007 Sulfur cinquefoil (Potentilla recta) Eff 07/01/2007 Venice mallow (Hibiscus trionum) Eff 07/01/2007 Wild caraway (Carum carvi) Eff 07/01/2007 Yellow nutsedge (Cyperus esculentus) Eff 07/01/2007 Yellow toadflax (Linaria vulgaris) Eff 07/01/2007 4.2. List B noxious weed species are species for which the Commissioner, in consultation with the state noxious weed advisory committee, local governments, and other interested parties, develops and implements state noxious weed management plans designed to stop the continued spread of these species. List B species must be managed in accordance with all the provisions of this Part 4, including any applicable state noxious weed management plans. Until a plan for a particular species is developed and implemented by rule, all persons are recommended to manage that species. Eff 07/01/2007 4.3. Local governing bodies and other interested parties are encouraged to make special note of the distribution and abundance of Canada thistle, Dalmatian toadfiax, leafy spurge, salt cedar, spurred anoda, Venice mallow, and yellow nutsedge as the Commissioner will consult with the state noxious weed advisory committee, local governments, and other interested parties, in order to develop and implement state noxious weed management plans in 2007-2008 designed to stop the continued spread of these species. State noxious weed management plans for additional List B species will be developed in future years. Eff 07/01/2007 4.4. It is a violation of these rules to allow any plant of any population of a List B species designated for eradication by the Commissioner in a state noxious weed management plan (Rules 4.7.1-4.7.9) to produce seed or develop other reproductive propagules after the time specified in the plan for elimination. Eff 07/01/2007 4.5. Prescribed management techniques must be applied to every population of List B species designated for eradication by the Commissioner in a state noxious weed management plan (Rules 4.7.1-4.7.9) to achieve the following objectives: Eff 07/01/2007 A. The plants of every population of List B species designated for eradication must be eliminated prior to seed development in the year specified. Eff 07/01/2007 B. Any population that is discovered in areas designated for eradication subsequent to the year specified for elimination must be eliminated prior to the development of viable seed. If the population is discovered after seed development has occurred, then efforts must be made to minimize the dispersion of seed and elimination is required prior to seed development in the following year. Eff 07/01/2007 C. Once all plants are eliminated, appropriate efforts must be made in subsequent years to detect and eliminate new plants arising from seed, reproductive propagule, or root stock prior to seed development for the duration of the seed longevity for the particular species. Eff 07/01/2007 D. In order to ensure that seeds or other reproductive propagules are not produced or spread, any plant with flowers, seeds, or other reproductive propagules must be placed in sealed plastic bags and disposed of by: Eff 07/01/2007 29 Part 5 List C Noxious Weed Species 5.1. List C of the Colorado noxious weed list comprises the following noxious weed species: Eff 07/01/2007 Chicory (Cichorium intybus) Eff 07/01/2007 Common burdock (Arctium minus) Eff 07/01/2007 Common mullein (Verbascum thapsus) Eff 07/01/2007 Common St. Johnswort (Hypericum perforatum) Eff 07/01/2007 Downy brome (Bromus tectorum) Eff 07/01/2007 Field bindweed (Convolvulus arvensis) Eff 07/01/2007 Halogeton (Halogeton glomeratus) Eff 07/01/2007 Johnsongrass (Sorghum halepense) Eff 07/01/2007 Jointed goatgrass (Aegilops cylindrica) Eff 07/01/2007 Perennial sowthistle (Sonchus arvensis) Eff 07/01/2007 Poison hemlock (Conium maculatum) Eff 07/01/2007 Puncturevine (Tribulus terrestris) Eff 07/01/2007 Velvetleaf (Abutilon theophrasti) Eff 07/01/2007 Wild proso millet (Panicum miliaceum) Eff 07/01/2007 5.2. List C noxious weed species are species for which the Commissioner, in consultation with the state noxious weed advisory committee, local governments, and other interested parties, will develop and implement state noxious weed management plans designed to support the efforts of local governing bodies to facilitate more effective integrated weed management on private and public lands. The goal of such plans will not be to stop the continued spread of these species but to provide additional education, research, and biological control resources to jurisdictions that choose to require management of List C species. Eff 07/01/2007 6.1. Local governing bodies and landowners with any population of any List A species or population of any List B species designated for eradication may be eligible for a compliance waiver granted by the Commissioner. Eff 07/01/2007 6.2. To apply for a compliance waiver, local governing bodies or landowners must submit a written petition to the State Weed Coordinator via mail (Colorado Department of Agriculture, 700 Kipling Street, Suite 4000, Lakewood, CO 80215-8000), fax (303- 239-4125), or email (csdcomments©ag.state.co.us with °Attention: noxious weed petition" in the subject line). The Department will only consider a petition for waiver during the growing season of the target weed when the extent of the problem can be properly evaluated at the site for which the petition is submitted. The petition should provide specific information pertinent to the reevaluation of eradication as the appropriate management objective for a specified geographic region. Eff 07/01/2007 6.3. The Commissioner will evaluate petitions using the following criteria: Eff 07/01/2007 A. The known distribution of the weed species in the specified geographic region; Eff 07/01/2007 B. The feasibility of current control technologies to achieve eradication of the population; Eff 07/01/2007 C. The cost of carrying out eradication as part of statewide weed management plan; and Eff 07/01/2007 D. Any other site -specific information that establishes eradication is not feasible for a specific population in a specified geographic region. Eff 07/01/2007 30 Petitioners must address these criteria and explain specifically what conditions exist that establish that eradication is not a viable management objective. Eff 07/01/2007 6.4. The Commissioner will grant or deny a petition within fifteen business days of receiving it. Eff 07/01/2007 6.5. The Commissioner may revoke a compliance waiver at any time if the information provided in the petition was incomplete or inaccurate, or if conditions change such that eradication becomes a viable management objective. Eff 07/01/2007 Part 7 Statements of Basis, Specific Statutory Authority and Purpose 7.1. February 11, 2004 — Effective May 3, 2004 Statutory Authority These permanent rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, § § 35-5.5-108 and 115, C.R.S. (2003). Eff 07/01/2007 Purpose The purpose of these permanent rules is to: (1) repeal all of the existing permanent rules for the administration and enforcement of the Colorado Noxious Weed Act, § § 35-5.5-101 through 119, C.R.S. (2003), currently published at 8 C.C.R. 1203-15 (including the Statement of Basis, Purpose and Statutory Authority as well as Rules 1 through 3) and; (2) replace the current permanent rules with new permanent rules which implement the Colorado Noxious Weed Act as amended by the General Assembly in its 2003 regular session. Specifically, the purposes of these new permanent rules are to designate state noxious weeds, classify state noxious weeds into three categories (List A, B, and C), develop and implement state noxious weed management plans for List A noxious weed species, prescribe integrated management techniques to achieve eradication of List A species, and provide a process for granting compliance waivers to local governing bodies and landowners in order to develop and implement a coordinated, statewide effort to stop the spread of noxious weeds and mitigate their impacts to agriculture and the environment. Eff 07/01/2007 Factual and Policy Issues The factual and policy issues encountered in the proposal of these permanent rules are as follows: Eff 07/01/2007 1. Several million acres of Colorado are infested with invasive non -indigenous plants that are continuing to spread to uninfested lands and increase in abundance. Eff 07/01/2007 2. A number of these species, designated as state noxious weeds, aggressively invade or are detrimental to economic crops or native plant communities, are poisonous to livestock, are carriers of detrimental insects, diseases, or parasites, or are detrimental, directly or indirectly, to the environmentally sound management of natural or agricultural systems. Eff 07/01/2007 3. Noxious weeds are a present threat to the economic and environmental value of the lands of the state of Colorado and it is a matter of statewide importance that the governing bodies of counties and municipalities manage such weeds in a coordinated manner across the state. Lack of such coordination makes weed management efforts unnecessarily costly and limits the effectiveness of public and private efforts to control such noxious weeds. Eff 07/01/2007 4. A broad array of public and private organizations support efforts to develop and implement a coordinated, statewide effort to stop the spread of noxious weeds. Eff 07/01/2007 31 5. Classifying designated noxious weeds into specific management categories will provide a means to focus public and private resources strategically and In a cost-effective manner. Eff 07/01/2007 6. By eradicating rare noxious weed species quickly (List A), these species can be prevented from establishing permanent populations in Colorado from which they will spread to harm the agricultural and environmental values of the lands of Colorado. Eff 07/01/2007 7. It is important that local governing bodies and affected landowners apply integrated management techniques that will achieve the specified management objectives, particularly for eradication. Some techniques are more effective than others (prescribed) and some techniques are likely to be ineffective or contribute to the spread of the weed species (not prescribed). Prescribing integrated management techniques to achieve specified management objectives will help landowners achieve management objectives such as eradication in a timely manner while limiting environmental damage, effort, and cost. Eff 07/01/2007 8. By stopping the spread of well -established species (List B), the values of uninfested lands for agriculture or the environment can be protected and the costs of land management to private and public landowners can be limited or reduced. Eff 07/01/2007 9. By educating the public about improved management for widespread species (List C), the harm associated with these species can be reduced and such efforts can be made more cost-effective for many citizens. Eff 07/01/2007 10. To accomplish the goals associated with List A (statewide eradication) and List B (halted spread) it is necessary to develop and implement statewide plans to coordinate appropriate actions at the private, local, state, and federal levels. Without such plans, it will be difficult to focus public and private resources strategically and in a cost-effective manner to achieve these goals. Eff 07/01/2007 11. In order to provide flexibility to respond to changing circumstances with respect to the distribution of weed populations, it is important to provide the state, local governing bodies, and landowners with a process to amend the requirement to eradicate a particular noxious weed. Without such a compliance waiver process, these rules may become unnecessarily burdensome. Eff 07/01/2007 12. The absence of rules to implement a coordinated statewide effort to manage noxious weeds results in increased management costs to public and private interests, a reduction in the effectiveness of individual efforts, and the continued loss of agricultural and environmental values to the invasion of noxious weeds. Eff 07/01/2007 7.2. March 4, 2005— Effective May 2, 2005 Statutory Authority These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, § § 35-5.5-108 and 115, C.R.S. (2004). Eff07/01/2007 Purpose The purposes of these amendments to the rules are to: (1) designate additional species of noxious weeds for inclusion in the current categories (Lists A, B, C) listed in Parts 3, 4 and 5 of the existing Rules; (2) reclassify some of the currently listed noxious weeds to different categories; (3) develop and implement new state noxious weed management plans for additional species listed for statewide 32 eradication (List A); (4) develop and implement state noxious weed management plans for selected List B species and; (5) identify priority List B species, among other possible List B species, for which the Commissioner intends to develop and implement state noxious weed management plans. Eff 07/01/2007 Factual Basis The factual and policy issues encountered in the proposal of these amendments to the rules are as follows: Eff 07/01/2007 1. It is necessary to periodically adjust the state noxious weed list to address emerging plant pest threats as they become known to the state. Eff 07/01/2007 2. The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act state that the Commissioner will develop and implement state noxious weed management plans for selected List B species. Eff 07/01/2007 3. State noxious weed management plans are necessary in order to coordinate appropriate actions at the private, local, state, and federal levels that will halt the continued spread of these List B species. Eff 07/01/2007 4. The proposed plans have been developed in consultation with the state noxious weed advisory committee, local governments, and other interested parties. Eff 07/01/2007 7.3. March 9, 2006 — Effective May 30, 2006 Statutory Authority These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious' Weed Act, § § 35-5.5-108 and 115, C.R.S. (2005). Eff 07/01/2007 Purpose The purposes of these amendments to the rules are to: (1) develop and implement state noxious weed management plans for selected List B species and (2) identify priority List B species, among other possible List B species, for which the Commissioner intends to develop and implement state noxious weed management plans. The rule will also be moved to the Conservation Services Division section of the CCR and renumbered to 8 CCR 1206-2 to reflect a reorganization in the Colorado Department of Agriculture moving the noxious weed program to this division. Eff 07/01/2007 Factual Basis The factual and policy issues encountered in the proposal of these amendments to the rules are as follows: Eff 07/01/2007 1. The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act state that the Commissioner will develop and implement state noxious weed management plans for selected List B species. Eff 07/01/2007 33 2. State noxious weed management plans are necessary in order to coordinate appropriate actions at the private, local, state, and federal levels that will halt the continued spread of these List B species. Eff 07/01/2007 3. The proposed plans have been developed in consultation with the state noxious weed advisory committee, local governments, and other interested parties. Eff 07/01/2007 7.4. May 3, 2007 - Effective July 1, 2007 Statutory Authority These amendments to the rules are adopted by the Commissioner of Agriculture pursuant to his authority under the Colorado Noxious Weed Act, § § 35-5.5-108 and 115, C.R.S. (2005). Eff 07/01/2007 Purpose The purposes of these amendments to the rules are to: (1) develop and implement state noxious weed management plans for selected List B species, (2) revise existing state noxious weed management plans for selected List B species, and (3) identify priority List B species, among other possible List B species, for which the Commissioner intends to develop and implement state noxious weed management plans. Eff 07/01/2007 Factual Basis The factual and policy issues encountered in the proposal of these amendments to the rules are as follows: Eff 07/01/2007 1. The current rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act state that the Commissioner wdl develop and implement state noxious weed management plans for selected List B species. Eff 07/01/2007 34 Irak : rapture Location rage 1 O1 1L IPaC IPaC resource list U.S. Fish & Wildlife Service This report is an automatically generated list of species and other resources such as critical habitat (collectively referred to as trust resources) under the U.S. Fish and Wildlife Service's (USFWS) jurisdiction that are known or expected to be on or near the project area referenced below. The list may also include trust resources that occur outside of the project area, but that could potentially be directly or indirectly affected by activities in the project area. However, determining the likelihood and extent of effects a project may have on trust resources typically requires gathering additional site -specific (e.g., vegetation/species surveys) and project -specific (e.g., magnitude and timing of proposed activities) information. Below is a summary of the project information you provided and contact information for the USFWS office(s) with jurisdiction in the defined project area. Please read the introduction to each section that follows (Endangered Species, Migratory Birds, USFWS Facilities, and NWI Wetlands) for additional information applicable to the trust resources addressed in that section. Location Adams County, Colorado Local office irau: nxpiure Location rage z U1 14 Colorado Ecological Services Field Office t. (303) 236-4773 (303) 236-4005 MAILING ADDRESS Denver Federal Center P.O. Box 25486 Denver, CO 80225-0486 PHYSICAL ADDRESS 134 Union Boulevard, Suite 670 Lakewood, CO 80228-1807 http://www.fws.gov/coloradoES http://www.fws.gov!platteriver Endangered species each species. Additional areas of influence ( AOI includes areas outside of the species ra affected by activities in that are. g'lacing even if that fish does np; :trocc ur reducing or eliminatin e dam site, may indirectlylimp floe" " downstream). Becaus conditions can change, the species on this list are no - near the project area. To fully determine, any potential site -specific and project-specific,.nforma Section 7 of the En n eyed Species Act requires Federal agencies to "request of the Secretary info}. ati ; w he'her any species which is listed or proposed to be listed may be presentiri the area of such proposed action" for any project that is conducted, permitted, funded, or licensed by any Federal agency. A letter from the local office and a species list which fulfills this requirement can only be obtained by requesting an official species list from either the Regulatory Review section in IPaC (see directions below) or from the local field office directly. This resource list is for informational purposes only and does not constitute an analysis of project level impacts. The primary information used to generate this list is the known or expected range of I) f species are also considered. An ge i h pcies could be indirectly darn upstream of a fish pgpulation, cies by ove, and site aranteed to be found on or ects to species, additional on is o tfi en required. For project evaluations that require USFWS concurrence/review, please return to the iraL: nxpiure Lueuutni rage J 01 IL IPaC website and request an official species list by doing the following: 1. Draw the project location and click CONTINUE. 2. Click DEFINE PROJECT. 3. Log in (if directed to do so). 4. Provide a name and description for your project. 5. Click REQUEST SPECIES LIST. Listed cie 1 are managed by the Ecological Services Program of the U.S. Fish and Wildlife Service. 1. Species listed under the Endangered Species Act are threatened or endangered; IPaC also shows species that are candidates, or proposed, for listing. See the listing status page for more information. The following species are potentially affected by activities in this location: Mammals NAME STATUS Preble's Meadow Jumping Mouse Zapus hudsonius Threatened preblei There is a final critical habitat designated for this species. Your location is outside the designated critical habitat. https://ecos.fws.gov/ecp/species/4090 Birds NAME Least Tern Sterna antillarum This species only needs to be coside condition applies: • Water-relatedaviti /ilse e N. Platte, S. Platte and La mie`Rtyer Basins may affect listed species in Nebras a. ollawing No critical habitat has been designated for this species. https://ecos.fws.gov/ecp/species/8505 Endangered txgiure Lucauun rage 9. 01 1.4, Mexican Spotted Owl Strix occidentalis lucida There is a final critical habitat designated for this species. Your location is outside the designated critical habitat. https://ecos.fws.gov/ecp/species/8196 Piping Plover Charadrius melodus This species only needs to be considered if the following condition applies: • Water -related activities/use in the N. Platte, S. Platte and Laramie River Basins may affect listed species in Nebraska. There is a final critical habitat designated for this species. Your location is outside the designated critical habitat. https://ecos.fws.gov/ecp!species/6639 Whooping Crane Grus americana This species only needs to be considered if the following condition applies: • Water -related activities/use in the N. Platte, S. Platte and Laramie River Basins may affect listed species in Nebraska. There is a final critical habitat designated for this species. Your location is outside the designated criticalaabita h Fishes NAME Pallid Sturgeon Scaphirhynchus albus This species only needs to be co sid dthfollowing condition applies: • Water -re ted".a iviti s/use he N. Platte, S. Platte and La amie"R ver Basins may affect listed species in Nebra No critical habitat has been designated for this species. https://ecos.fws.gov/ecp/species/7162 Threatened Threatened Endangered TUS Endangered Iral : r,xpiore L.0Lauull rage J ul !L Flowering Plants NAME Colorado Butterfly Plant Gaura neomexicana var. coloradensis There is a final critical habitat designated for this species. Your location is outside the designated critical habitat. t /eec Lfw ov/ecp/speues/6,11i Ute Ladies' -tresses Spiranthes diluvialis No critical habitat has been designated for this species. https://ecos.fws.govtecp/species/2159 STATUS Threatened Threatened Western Prairie Fringed Orchid Platanthera praeclara Threatened This species only needs to be considered if the following condition applies: • Water -related activities/use in the N. Platte, S. Platte and Laramie River Basins may affect listed species in Nebraska. No critical habitat has been designated for this species. https://ecos.fws.gov/ecp/species/1669 Critical habitats Potential effects to criti . I `obi the endangered specie mss= ves. n this location must be analyzed along kith THERE ARE NO CRITICAL HABITATS AT THIS Migratqi ras Certain birds are protected under the Migratory Bird Treaty Act and the Bald and Golden Eagle Protection ActZ. Any activity that results in the take (to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect, or to attempt to engage in any such conduct) of migratory birds or eagles is prohibited unless authorized by the U.S. Fish and Wildlife Service lraL: r.xpiure Lucauun rage o ui 1G -. There are no provisions for allowing the take of migratory birds that are unintentionally killed or injured. Any person or organization who plans or conducts activities that may result in the take of migratory birds is responsible for complying with the appropriate regulations and implementing appropriate conservation measures. 1. The Migratory Birds Treaty Act of 1918. 2. The Bald and Golden Eagle Protection Act of 1940. 3. 50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a) Additional information can be found using the following links: • Birds of Conservation Concern http://www.fws.gov/birds/management/managed- species/ birds-of-conservation-concern.php • Conservation measures for birds http//www.fws.gov/birds/management/project- assessment-tools-and-guidance/ conservation-measures.php • Year-round bird occurrence data http://www.birdscanada.org/birdmon/default/datasummaries.jsp The migratory birds species listed below are species of particular conservation concern (e.g. Birds of Conservation Concern) that may b potentially affected by activities in this location. It is not a list of eve hirs you may find in this location, nor a guarantee that all of the:,bird eue t is list will be found on or near this location. Althoug it I *m oant to try to avoid and minimize ' p. cts to all birds, special attentio a o � . de o avoid and mini ds of priority concern. To vie a - able data on other bird ►e s t t - occur in your project area, please visit the AKN Histograri Tel- a o th-r Bird Data Resources. To fully determine any potential effects • ecp s, dditi: nal site -specific and project - specific information is often re NAME American Bi Baurus lentiginosus https://ecos.fws.gov/ecp/species/6582 SEASON(S) Breeding Bald Eagle Haliaeetus leucocephalus Year-round https://ecos.fws.gev/ecp/species/1626 hat_.: rapture l.ueauun rage / ui iL Black Rosy -finch Leucosticte atrata https://ecos.fws.gov/ecp/species/9460 Brewer's Sparrow Spizella breweri https://ecos.fws.gov/ecpispecies/9291 Burrowing Owl Athene cunicularia https://ecos.fws.gov/ecp/species/9737 Dickcissel Spiza americana Ferruginous Hawk Buteo regalis https://ecos.fws.gov/ecp/species/6038 Year-round Breeding Breeding Breeding Year-round Golden Eagle Aquila chrysaetos Year-round https://ecos.fws.goviecp/species%' 683 Lark Bunting Calamospiza melanocorys Breeding Lewis's Woodpecker Melanerpes lewis https://ecos.fws.gov/ecp/species/9408 Loggerhead Shrike Lanius Iudovicianus https://ecos.fws.gov'cp/species/8833 Long -billed Curlew Numenius americanus https://ecos.fws.gov/ecp/species/5517 Mountain Plover Charadrius`montanus https://ecQ" fws.ggvjecp/species/3638 Peregrine Falcon Falco peregrinus https://ecos.fws.gov/ecp/species/8831 Breeding Breeding Breeding Breeding Prairie Falcon Falco mexicanus Year-round https://ecos.fws.gov/ecp/species/4736 rxpiure Location rage o ui 14 Red-headed Woodpecker Melanerpes erythrocephalus Rufous Hummingbird selasphorus rufus hops://ecos.fws.gov/ecp/soecies/8002 Sage Thrasher Oreoscoptes montanus https:i/ec,a.fws.gov/ecp/species/9433 Short -eared Owl Asio flammeus hops://ecos.fws.govlecp/species/9295 Swainson's Hawk Buteo swainsoni ht;ps://eccts.fws,gov/ec;/species/109' Virginia's Warbler Vermivora virginiae os.fws.Qovi ecc)/species/9441 Western Grebe aechmophorus occidentalis https:/.- ecos.fws.gov%ecp!species/6743 Breeding Migrating Breeding Wintering Breeding Breeding Breeding Williamson's Sapsucker Sphyrapicus thyroir us qw, Breeding hops://ecos.fws gov/ecp/species/8832 Willow Flycatcher E hops://ecos.fws.govlp ciesT3482 Breed What does IPaC use to generate the list of migratory •# species potentially occurring in my specified location? Landbirds: Migratory birds at a O splayed on the IPaC species list are based on ranges in the latest edition of the National ebtraphic Guide, Birds of North America (6th Edition, 2011 by Jon L. Dunn, and Jonathan Alderfer). Although these ranges are coarse in nature, a number of U.S. Fish and Wildlife Service migratory bird biologists agree that these maps are some of the best range maps to date. These ranges were clipped to a specific Bird Conservation Region (BCR) or USFWS Region/Regions, if it was indicated in the 2008 list of Birds of Conservation Concern (BCC) that a species was a BCC species only in a particular Region/Regions. Additional modifications have been made to some irau: r.xpiure Location rage i ui Z. ranges based on more local or refined range information and/or information provided by U.S. Fish and Wildlife Service biologists with species expertise. All migratory birds that show in areas on land in IPaC are those that appear in the 2008 Birds of Conservation Concern report. Atlantic Seabirds: Ranges in IPaC for birds off the Atlantic coast are derived from species distribution models developed by the National Oceanic and Atmospheric Association (NOM) National Centers for Coastal Ocean Science (NCCOS) using the best available seabird survey data for the offshore Atlantic Coastal region to date. NOAANCCOS assisted USFWS in developing seasonal species ranges from their models for specific use in IPaC. Some of these birds are not BCC species but were of interest for inclusion because they may occur in high abundance off the coast at different times throughout the year, which potentially makes them more susceptible to certain types of development and activities taking place in that area. For more refined details about the abundance and richness of bird species within your project area off the Atlantic Coast, see the Northeast Ocean Data Portal. The Portal also offers data and information about other types of taxa that may be helpful in your project review. About the NOAANCCOS models: the models were developed as part of the NOAANCCOS project: Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic Cuter Continental Shelf. The models resulting from this project are being used in a number of decision-support/mapping products in order to help guide decision - making on activities off the Atlantic Coast with the goal of reducing impacts to migratory birds. One such product is the Northeast Ocean Data Portal, which can be used to explore details about the relative occurrence and abundance of bird species in a particular area off the Atlantic Coast. All migratory bird range maps within IPaC are continuously being updated as new and better information becomes available. Can I get additional information about the''evels of occurrence in my project area of specific birds or groups of birds liedn IPaC? Landbirds: The Avian Knowledge Network (AKN) provides a tool currently called"the "Histogram Tool", which draws from the data within the AKN (latestsu y, iointvcount, citizen science datasets) to create a view of relative abundance of s ecies ithin a,p rticular location over the course of the year. The results of the tool depictthe'freq ncyrof detection of a species in survey events, averaged between multiple,.dataetvithin 'KN in a particular week of the year. You may access the histogram tools roughle Migratory Bird Programs AKN Histogram Tools webpage. The tool is currently available for 4 regions (California, Northeast U.S., Southeast U.S. and Midwest), which encompasses the following 32 states: Alabama, Arkansas, California, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, New Hampshire, New Jersey, New York, North, Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, and Wisconsin. irac : r xpture Location rage iu O1 14. r In the near future, there are plans to expand this tool nationwide within the AKN, and allow the graphs produced to appear with the list of trust resources generated by IPaC, providing you with an additional level of detail about the level of occurrence of the species of particular concern potentially occurring in your project area throughout the course of the year. Atlantic Seabirds: For additional details about the relative occurrence and abundance of both individual bird species and groups of bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to you in your project review. Alternately, you may download the bird model results files underlying the portal maps through the NOAANCCOS Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic Outer Continental Shelf project webpage. Facilities Wildlife refuges Any activity proposed on National Wildlife Refuge lands must undergo a 'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to discuss any questions or concerns. THERE ARE NO REFUGES AT THIS LOCATION. Fish hatcherie' THERE ARE NO FISH HATCHERIES ATTHIS LOCATION. Wetlands in the National Wetlands Inventory Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404 of the Clean Water Act, or other State/Federal statutes. tral : Lxpiore Loea.lIon rage it Ui iG For more information please contact the Regulatory Program of the local U.S. Army Corps of Engineers District. This location overlaps the following wetlands: FRESHWATER EMERGENT WETLAND PEMA FRESHWATER FORESTED/SHRUB WETLAND PFOA FRESHWATER POND PUBK RIVERINE R2UBH R4SBK R2USA A full description for each wetland code can be found at the National Wetlands Inventory website: https://ecos.fws.gov/ipac;wetlands/decoder Data limitations The Service's objective of mapping wetlands and deepwater habitats is to produce reconnaissance level information on the location, type and size of these resources. The maps are prepared from the analysis of high altitude imagery. Wetlands are identified based on vegetation, visible hydrology and geography. A margin of error is inherent in the use of imagery; thus, detailed on - the -ground inspection of a . y particular ite'tnay result in revision of thewetla d boundaries or classification established t ,du„imge,'analysis. r<<' The accuracy of image interpretation depends on the quality o' the i nag r'y, the experience of the image analysts, the amount and quality of the col ateral;A;data.and-the amount of ground truth verification work conducted. Metadata should'be cnsutted to determine the date of the source imagery used and any mapping.probJeq Wetlands or other mapped„,feaures may have changed since the date of the imagery or field work. There may be occasional; differences in polygon boundaries or classifications between the information depicted on the map and the actual conditions on site. Data exclusions Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and nearshore coastal waters. Some deepwater reef communities (coral or r.xpiure Luctuiun rage th UL tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. Data precautions Federal, state, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a different manner than that used in this inventory. There is no attempt, in either the design or products of this inventory, to define the limits of proprietary jurisdiction of any Federal, state, or local government or to establish the geographical scope of the regulatory programs of government agencies. Persons intending to engage in activities involving modifications within or adjacent to wetland areas should seek the advice of appropriate federal, state, or local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may affect such activities. 2019 Biological Resources Inventory Report Attachment 2: USFWS IPaC jral : r,xpiore Location rage L of IL • IPaC IPaC resource list U.S. Fish & Wildlife Service This report is an automatically generated list of species and other resources such as critical habitat (collectively referred to as trust resources) under the U.S. Fish and Wildlife Service's (USFWS) jurisdiction that are known or expected to be on or near the project area referenced below. The list may also include trust resources that occur outside of the project area, but that could potentially be directly or indirectly affected by activities in the project area. However, determining the likelihood and extent of effects a project may have on trust resources typically requires gathering additional site -specific (e.g., vegetation/species surveys) and project -specific (e.g., magnitude and timing of proposed activities) information. Below is a summary of the project information you provided and contact information for the USFWS office(s) with jurisdiction in the defined project area. Please read the introduction to each section that follows (Endangered Species, Migratory Birds, USFWS Facilities, and NWI Wetlands) for additional information applicable to the trust resources addressed in that section. Location Adams County, Colorado Local office rraL: E.xpiore vocation rage z 01 1L Colorado Ecological Services Field Office k. (303) 236-4773 IS (303) 236-4005 MAILING ADDRESS Denver Federal Center P.O. Box 25486 Denver, CO 80225-0486 PHYSICAL ADDRESS 134 Union Boulevard, Suite 670 Lakewood, CO 80228-1807 http://www.fws.gov/coloradoES http://www.fws.gov/platteriver Endangered species This resource list is for informational purposes only and does not constitute an analysis of project level impacts. The primary information used to generate this list is the Kflown or expected range of each species. Additional areas of influence (AOI) for species are also considered. An AOI includes areas outside of the species range if tLhespecies could be indirectly affected by activities in tha area, e.g. lacing a dam upstream of a fish population, even if that fish does n o u t e cram site, may indirectly,imp ; h p Gies by reducing or eliminatin flow downstream). Becaus;. . e o ,e, and site conditions can change, the species on this t a re,,no arap,,tee: to be found on or near the project area. To fully determine an .pdtentiat•effects to species, additional site -specific and project-specificnfor en required. Section 7 of the Endangered Spec'i'es Act requires Federal agencies to "request of the Secretary info"atr®n„theher any species which is listed or proposed to be listed may be prese tin' the area of such proposed action" for any project that is conducted, permitted, funded, or licensed by any Federal agency. A letter from the local office and a species list which fulfills this requirement can only be obtained by requesting an official species list from either the Regulatory Review section in IPaC (see directions below) or from the local field office directly. For project evaluations that require USFWS concurrence/review, please return to the lra : rixpiore LUC:4UU11 rage .1 01 lG IPaC website and request an official species list by doing the following: 1. Draw the project location and click CONTINUE. 2. Click DEFINE PROJECT. 3. Log in (if directed to do so). 4. Provide a name and description for your project. 5. Click REQUEST SPECIES LIST. Listed species are managed by the Ecological Services Program of the U.S. Fish and Wildlife Service. 1. Species listed under the Endangered Species Act are threatened or endangered; IPaC also shows species that are candidates, or proposed, for listing. See the listing status page for more information. The following species are potentially affected by activities in this location: Mammals NAME STATUS Preble's MeadowJumping Mouse Zapus hudsonius Threatened preblei There is a final critical habitat designated for this species. Your location is outside the designated critical habitat. https://ecos.fws.govtecp/spec i es/4090 Birds NAME Least Tern Sterna antillarum This species only needs to be considered if;thefollowing condition applies: • Water -related activities/use in the N. Platte, S. Platte and La amie Rive Basins may affect listed species in Nebraska. No critical habitat has been designated for this species. https://ecos.fws.gov/ecp/species/8505 BTU Endangered irat.: rapture Loeauoii rage 41 01 iG Mexican Spotted Owl Strix occidentalis Iucida There is a final critical habitat designated for this species. Your location is outside the designated critical habitat. nttps://ecos.fws.gov/ecp/species/8196 Piping Plover Charadrius melodus This species only needs to be considered if the following condition applies: • Water -related activities/use in the N. Platte, S. Platte and Laramie River Basins may affect listed species in Nebraska. There is a final critical habitat designated for this species. Your location is outside the designated critical habitat. https://ecos.fvvszov/ecpispectes/6039 Whooping Crane Grus americana This species only needs to be considered if the following condition applies: • Water -related activities/use in the N. Platte, S. Platte and Laramie River Basins may affect listed species in Nebraska. There is a final critical habitat designated for this species. Your location is outside the designated critical iabitat,, https://ecosfws.gov/ecp/species/758 Fishes NAME Pallid Sturgeon Scaphirhynchus albus This species only needs to be c side d therfollowing condition applies: • Water -rebate and La Nebras mie se in he N. Platte, S. Platte er` Basins may affect listed species in No critical habitat has been designated for this species. https://ecos.fws.gov/ecpispecies/7162 Threatened Threatened Endangered STATU Endangered ;rak,: rapture Locanunn rage J O1 IL Flowering Plants NAME STATUS Colorado Butterfly Plant Gaura neomexicana var. coloradensis There is a final critical habitat designated for this species. Your location is outside the designated critical habitat. https://ecos.fvvs.gov/ecp/species/611 0 Ute Ladies' -tresses Spiranthes diluvialis No critical habitat has been designated for this species. https://ecos.fws.goviecp/species/2159 Threatened Threatened Western Prairie Fringed Orchid Platanthera praeclara Threatened This species only needs to be considered if the following condition applies: • Water -related activities/use in the N. Platte, S. Platte and Laramie River Basins may affect listed species in Nebraska. No critical habitat has been designated for this species. https:i/ecos.fws.gov/ecp/species/ 1669 Critical habitats Potential effects to critical habitat(s)in this location must be apalyzedalong With 15. the endangered speoe h- selves. THERE ARE NO CRITICAL HABITATS AT THIS LQCATION, Migrat ras Certain birds are protected under the Migratory Bird Treaty Act '- and the Bald and Golden Eagle Protection Acta. Any activity that results in the take (to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect, or to attempt to engage in any such conduct) of migratory birds or eagles is prohibited unless authorized by the U.S. Fish and Wildlife Service trio-: rapture LODUL1O11 rage 0 0.1 1G There are no provisions for allowing the take of migratory birds that are unintentionally killed or injured. Any person or organization who plans or conducts activities that may result in the take of migratory birds is responsible for complying with the appropriate regulations and implementing appropriate conservation measures. 1. The Migrawry Birds Treaty Act of 1918. 2. The Bald and Golden Eagle Protection Act of 1940. 3. 50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a) Additional information can be found using the following links: • Birds of Conservation Concern http://wvvw.fws.gov/birds/management/managed- species/ birds-of-conservation-concern.php • Conservation measures for birds http:t/www.fws.gov!birds!management/project- assessment-tools-and-guidance! conservation-rneasures.php • Year-round bird occurrence data http://wwvv.birdscanada.org/birdmon/default/datasummaries.jsp The migratory birds species listed below are species of particular conservation concern (e.g. Birds of Conservation Concern) that may bepotentially affected by activities in this location. It is not a list of every bird s edes you may find in this location, nor a guarantee that all of t e:bird's eco�n t is list will be found on or near this location. Although .it is "repo es nt to try to avoid and minimize i, acts to all birds, special attentio o d toad o avoid and minimiz ' m 0 a s t birds of priority concern. To vie ,a ilable data on other bird a s t occur in your project area, please visit the AKN Histograrh TddIs and th-'rBird Data Resources. To fully determine any potential effects o seers, addi r nal site -specific and project - specific information is often regred NAME American Bi er Botaurus lentiginosus https://ecos.fws.gov/ecp/species/6582 SEASON(S) Breeding Bald Eagle Haliaeetus leucocephalus Year-round https://ecos.fws.gov/ecp/species/ 1626 r xpiure Locauull rage / ui 1G Black Rosy -finch Leucosticte atrata https://ecos.fws.goviecp/species/9460 Brewer's Sparrow Spizella breweri https://ecos.fws.gov/ecp/species/9291 Burrowing Owl Athene cunicularia https://ecos.fws.gov/ecp/species/9737 Dickcissel Spiza americana Ferruginous Hawk Buteo regalis https://ecos.fws.gov/ecp/species/6038 Year-round Breeding Breeding Breeding Year-round Golden Eagle Aquila chrysaetos Year-round ttos://ecos.fws.gcvrecp/species/1680 Lark Bunting Calamospiza melanocorys Breeding Lewis's Woodpecker Melanerpes lewis https://ecos.fws.gov/ecp/species/9408 Loggerhead Shrike Lanius ludovicianus https://ecos.fws �Qv $L2I cies/ Long -billed Curlew Numenius americanus. https://ecos.fws.gov/ecp/species/5511 Mountain Plover CharadluImon1anus Y https-//ecfws.v/pcppecies/3638 Peregrine Falcon Falco peregrinus https://ecos.fws.gov/ecp/species/8831 Breeding Breeding Breeding Breeding Breeding Prairie Falcon Falco mexicanus Year-round https://ecos.fws.gov/ecp/species/4736 Irak,: rapture t.ucuuun rab'c 0 VI I. 4 Red-headed Woodpecker Melanerpes erythrocephalus Breeding Rufous Hummingbird selasphorus rufus Migrating https:ii ecos.fors.gov/ecpispecies/8002 Sage Thrasher Oreoscoptes montanus huos://ecos.fwsgov/ecp/species/9-x33 Short -eared Owl Asio flammeus https://ecos.fvvs.gov/ecp/species/9295 Swainson's Hawk Buteo swainsoni hops://ecos.fws.gov/ecpispeciesi 105 Virginia's Warbler Vermivora virginiae https://ecos.fws.govlecp/species!944 i Western Grebe aechmophorus occidentalis https://ecos.fws.gov/ecp/species/6%42 Williamson's Sapsucker Sphyrapicus thyroideus https://ecos.fws.gov/ecp/species/8832 Willow Flycatcher E https://ecos.fws.gov/ /3482 Breeding Wintering Breeding Breeding Breeding Breeding Breedi What does IPaC use to generate the list of migratory bird species potentially occurring in my specified location? Landbirds: Migratory birds at a e„displayed on the IPaC species list are based on ranges in the latest edition of the National ebgraphic Guide, Birds of North America (6th Edition, 2011 by Jon L. Dunn, and Jonathan Alderfer). Although these ranges are coarse in nature, a number of U.S. Fish and Wildlife Service migratory bird biologists agree that these maps are some of the best range maps to date. These ranges were clipped to a specific Bird Conservation Region (BCR) or USFWS Region/Regions, if it was indicated in the 2008 list of Birds of Conservation Concern (BCC) that a species was a BCC species only in a particular Region/Regions. Additional modifications have been made to some nxpiure Luuauur► rage / ut 1.4 T ranges based on more local or refined range information and/or information provided by U.S. Fish and Wildlife Service biologists with species expertise. All migratory birds that show in areas on land in IPaC are those that appear in the 2008 Birds of Conservation Concern report. Atlantic Seabirds: Ranges in IPaC for birds off the Atlantic coast are derived from species distribution models developed by the National Oceanic and Atmospheric Association (NOAA) National Centers for Coastal Ocean Science (NCCOS) using the best available seabird survey data for the offshore Atlantic Coastal region to date. NOAANCCOS assisted USFWS in developing seasonal species ranges from their models for specific use in IPaC. Some of these birds are not BCC species but were of interest for inclusion because they may occur in high abundance off the coast at different times throughout the year, which potentially makes them more susceptible to certain types of development and activities taking place in that area. For more refined details about the abundance and richness of bird species within your project area off the Atlantic Coast, see the Northeast Ocean Data Portal. The Portal also offers data and information about other types of taxa that may be helpful in your project review. About the NOAANCCOS models: the models were developed as part of the NOAANCCOS project: Integrative Statistical: Modeling and Predictive Mapping of Marine Bird Distributions and Anunciance on the Atlantic Outer Continental Shelf. The models resulting from this project are being used in a number of decision-support/mapping products in order to help guide decision - making on activities off the Atlantic Coast with the goal of reducing impacts to migratory birds. One such product is the Northeast Ocean Data Portal, which can be used to explore details about the relative occurrence and abundance of bird species in a particular area off the Atlantic Coast. All migratory bird range maps within IPaC are continuously being „updated as new and better information becomes available. Can I get additional information - a of specific birds or groups of birds listed in IPaC? Landbirds: The Avian Knowledge Network (AKN) provides a tool currentlyyc lied xthe "Histogram Tool", which draws from the data within the AKN (latest survey, pintcount, citizen science datasets) to create a view of relative abundance of s • ecies within.a}p"articular location over the course of the year. The results of the tool depict the f q envy of detection of a species in survey events, averaged between multiple,dat a et ,Wit `in AKN in a particular week of the year. You may access the histogram tools' , rough the Migratory Bird Programs AKN Histogram Tools webpage. The tool is currently available for 4 regions (California, Northeast U.S., Southeast U.S. and Midwest), which encompasses the following 32 states: Alabama, Arkansas, California, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, New Hampshire, New Jersey, New York, North, Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia, and Wisconsin. 11 al r xpiure t.ueauuii a age a v va a z - I r •-I In the near future, there are plans to expand this tool nationwide within the AKN, and allow the graphs produced to appear with the list of trust resources generated by IPaC, providing you with an additional level of detail about the level of occurrence of the species of particular concern potentially occurring in your project area throughout the course of the year. Atlantic Seabirds: For additional details about the relative occurrence and abundance of both individual bird species and groups of bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to you in your project review. Alternately, you may download the bird model results files underlying the portal maps through the NOAANCCOS Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic Outer Continental Shelf project webpage. Facilities Wildlife refuges Any activity proposed on National Wildlife Refuge lands must undergo a 'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to discuss any questions or concerns. THERE ARE NO REFUGES AT THIS LOCATION: Fish hatcherie THERE ARE NO FISH HATCH ERJES AT THIS LOCATION Wetlands in the National Wetlands Inventory Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404 of the Clean Water Act, or other State/Federal statutes. J JraL: rupture LOCUUUII rage ii UL 1G For more information please contact the Regulatory Program of the local U.S__Army Corps of Engineers District. This location overlaps the following wetlands: FRESHWATER EMERGENT WETLAND PEMA FRESHWATER FORESTED/SHRUB WETLAND PFOA FRESHWATER POND PUBK RIVERINE R2UBH R4SBK R2USA A full description for each wetland code can be found at the National Wetlands Inventory website: https:/iecos.fws.goviipaclwetlandsidecoder Data limitations The Service's objective of mapping wetlands and deepwater habitats is to produce reconnaissance level information on the location, type and size of these resources. The maps are prepared from the analysis of high altitude imagery. Wetlands are identified based on vegetation, visible hydrology and geography. A margin of erroriss inherent in the use of imagery; thus, detailed on - the -ground inspection of an p icular site`may result in revision of the wetland boundaries or classification established t image inalysis. The accuracy of image interpretation depends on the quality o the' lnag `ry, tie experience of the image analysts, the amount and quality of the collateral dataAad the amount of ground truth verification work conducted. Metadata should a consulted to determine the date of the source imagery used and any mapping probfe s. Wetlands or other . appedjfe ures may have changed since the date of the imagery or field work. There may be occasional differences in polygon boundaries or classifications between the information depicted on the map and the actual conditions on site. Data exclusions Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and nearshore coastal waters. Some deepwater reef communities (coral or mil Lxplure Lucdtlull rage IL ul 1 t► r tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. Data precautions Federal, state, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a different manner than that used in this inventory. There is no attempt, in either the design or products of this inventory, to define the limits of proprietary jurisdiction of any Federal, state, or local government or to establish the geographical scope of the regulatory programs of government agencies. Persons intending to engage in activities involving modifications within or adjacent to wetland areas should seek the advice of appropriate federal, state, or local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may affect such activities. Savage and Savage (2021) Exhibit H, Wildlife Assessment Exhibit H - Wildlife Information Wildlife Assessment Site Description Savage and Savage biologists conducted an on -site wildlife assessment for the proposed Aggregate Industries Tucson South Conveyor project site on June 29, 2021. The project site is comprised of approximately 7200 linear feet of conveyor corridor within the east half of Section 36 of Township 1 North, Range 67 West, Weld County, Colorado, and the east half of Section 1, of Township 1 South, Range 67 West of the 6th Prime Meridian, Adams County, Colorado. The center of the project site is located at 40.003140° latitude and -104.839075° longitude. The property is located northwest of Brighton, Colorado between Colorado Highway 7 and Weld County Road 23.75. The project site is accessed from Tucson Street and Weld County Road 23.5. Weather during the site investigation was warm, dry, and partly overcast with a temperature in the mid -60's (°F). The topography of the site is dominated by the primary alluvial terrace of the South Platte River. The elevation of the project area averages 4955 feet and slopes gently to the east toward the river. The soils that dominate the site are formed from alluvium and consist of loams and clays, generally underlain by aggregate with varying groundwater levels. The significant hydrologic feature near the site is the South Platte River. The conveyor corridor is sited alongside Tucson Street north of Colorado Highway 7 and Weld County Road 23.5 north of Colorado Highway 7. The area has been developed for aggregate resources, with little of the native vegetation communities remaining. These areas have no tree overstory and no shrub understory. Active and inactive agricultural areas dominate the remainder of the area adjacent to the proposed conveyor corridor. Significant Wildlife Resources Tables 1, 2, and 3 list wildlife species that potentially occur on -site according to the Colorado Distribution Latilong Studies (CDOW, 1981, 1990, 1998). The latilong studies address mammals, birds, reptiles, and amphibians. A further review of wildlife species for which the Colorado Division of Parks and Wildlife has distribution maps on the Colorado Oil and Gas Conservation Commission web site (http://cogcc.state.co.us/infosys/Maps/wildlifemap.cfm) did not reveal any sensitive wildlife habitat or surface restricted occupancy areas within or adjacent to the project site (see appended map). The closest wildlife feature of significance to the proposed conveyor corridor is a bald eagle nest and buffer zone located 4500 feet northeast. During the on -site investigation several avian species and one mammal species were observed within and adjacent to the project site. A northern harrier (Circus cyaneus), Exhibit H Page 1 red -winged blackbird (Agelaius phoeniceus), and black -tailed prairie dogs (Cynomys ludovicianus) were all seen along the corridor. No tracks, scat or nests were observed during our inspection. Seasonal Use With the exception of bats, the mammal species encountered during the site inspection or that potentially occur on -site are expected to be year-round residents or users of the site. The carnivore and ungulate species are not restricted to this site and tend to have relatively large home ranges (up to several square miles). The majority of rodent and insectivore species can be expected to reside on -site throughout the year, though many may hibernate during the cold months. Avian species may be year-round, temporary migrants, or summer residents of the site. Year-round residents would include the waterfowl, raptors, gallinaceous birds, pigeons, owls, and woodpeckers. The majority of the shorebirds and passerines would use the site during the spring, summer, and fall for feeding or resting during migration. Amphibian and reptile species of the site are year- round residents. Threatened and Endangered Species and Critical Habitat Potential habitat for the Preble's meadow jumping mouse (Zapus hudsonius preblei) and Ute ladies' -tresses orchid (Spiranthes diluvialis) were evaluated based on results of a search of potentially occurring threatened or endangered species on the U.S. Fish and Wildlife Service web site for Weld and Adams Counties. Additionally, bald eagle (Haliaeetus leucocephalus) nest locations and winter night roost locales were evaluated from the Colorado Oil and Gas Conservation Commission (COGCC) web site map of sensitive wildlife habitat and restricted surface occupancy areas for protected wildlife species. Potential habitat exists for the Preble's meadow jumping mouse within the cottonwood riparian corridor immediately adjacent to the South Platte River. As the proposed project location is not within or adjacent to the riparian corridor and does not include disturbance to potential Preble's meadow jumping mouse critical habitat, the potential for impacts to the mouse are negligible, and no further evaluation was undertaken. If future project activities include disturbance to potential habitat, the permittee will obtain clearance and/or approval from the U.S. Fish and Wildlife Service. No eagles or nests were observed during our investigation of the site. The map of significant wildlife habitat from COGCC identified a bald eagle nest site; however, it is located over 4500 feet northeast of the closest proposed conveyor location. No winter night roost areas were located within two miles of the project site. Burrowing owls (Athene cunicularia), a species of concern in Colorado, occupy abandoned prairie dog holes on the outskirts of prairie dog colonies. No prairie dog Exhibit H Page 2 colonies were found within the project site, nor was evidence of burrowing owls observed. Project Effects to Wildlife The Tucson Conveyor project site is proposed for transportation of aggregate materials to the Platte Processing Plant located east of Wattenberg, Colorado on U.S. Highway 85. Currently, over -the -road haul trucks are used to convey aggregate from the mining areas to the south to the processing plant. Noise and air emissions from truck haulage are significantly greater than that from operation of the proposed conveyor system. The operation of the conveyor may cause a temporary disturbance to wildlife. Though elevated, the conveyor may interrupt direct movement of larger ungulates, and direct their travels to areas where the conveyor is more elevated. Species such as raccoons, coyotes, beaver, deer, and raptors will continue to use the corridor during conveyor operations and the site itself when operations are not active. Bird species will use the periphery of the site and the site itself opportunistically, if prey or food species are present. The proposed conveyor project will remain active so long as aggregate resources can be economically transported to the processing facility. When mining operations move further from the processing plant, the conveyor will be removed, and the corridor reclaimed. At that point, any wildlife impacts from the conveyor operation will be eliminated. Exhibit H Page 3 Literature Cited Colorado Division of Wildlife. 1981 Ed. Colorado Reptile and Amphibian Distribution Latilong Study. Colorado Division of Wildlife and The Denver Museum of Natural History. 1990 Ed. Colorado Mammal Distribution Latilong Study. Colorado Division of Wildlife in cooperation with the Colorado Field Ornithologists. 1998 Ed. Colorado Bird Distribution Latilong Study. Colorado Oil and Gas Conservation Commission. 2021. Web Map. (https://cogccmap.state.co.us/cogcc_gis_online/) U.S. Department of Agriculture, Soil Conservation Service. 1981. Soil Survey if Weld County, Colorado: Southern Part. Exhibit H Page 4 Exhibit H Page 5 Table 1. Mammal Species Potentially Inhabiting the Tucson South Conveyor Corridor Site Classification/Common Name Scientific Name Preferred Habitat Marsupials Virginia Opossum Carnivores Coyote Swift Fox Red Fox Raccoon Long-tailed Weasel Badger Striped Skunk Ungulates Mule Deer White-tailed Deer Lagomorphs Desert Cottontail Black -tailed Jack Rabbit White-tailed Jackrabbit Rodents Wyoming Ground Squirrel Spotted Ground Squirrel Thirteen -lined Ground Squirrel Black -tailed Prairie Dog Northern Pocket Gopher Plains Pocket Gopher Olive -backed Pocket Mouse Plains Pocket Mouse Silky Pocket Mouse Hispid Pocket Mouse Ord's Kangaroo Rat Western Harvest Mouse Plains Harvest Mouse Didelphis virginiana Canis latrans Vulpes velox Vulpes vulpes Procyon lotor Mustela nigripes Taxidea taxus Mephitis mephitis Odocoileus hemionus Odocoileus virginianus Sylvilagus audubonii Lepus californicus Lepus townsendii Spermophilus elegans Spermophilus spilosoma Spermophilus tridecemlineatus Cynomys ludovicianus Thomomys talpoides Geomys bursarius Perognathusfasciatus Perognathus flavescens Perognathus flavus Chaetodipus hispidus Dipodomys ordii Reithrodontomys megalotis Reithrodontomys montanus Ag, Cr All types SgP, Ag Ag Ag All types SgP All types Ag Cr, Ag SgP SgP SgP Ag SgP SgP SgP, Ag SgP, Ag Ag SgP SgP SgP SgP SgP SgP, Ag SgP Exhibit H Page 6 Table 1. Mammal Species Potentially Inhabiting the Tucson South Conveyor Corridor Site continued Classification/Common Name Scientific Name Preferred Habitat Rodents Deer Mouse Northern Grasshopper Mouse Prairie Vole Norway Rat House Mouse Porcupine Insectivores Least Shrew Bats Western Small -footed Myotis Habitat Types SgP Shortgrass-Prairie Ag Agriculture Cr Croplands Peromyscus maniculatus Onychomys leucogaster Microtus ochrogaster Rattus norvegicus Mus musculus Erethizon dorsatum Cryptotis parva Myotis ciliolabrum All types SgP, Cr SgP, Ag Cr Cr SgP, Ag roadsides SgP Exhibit H Page 7 Table 2. Breeding Bird Species Potentially Inhabiting the Tucson South Conveyor Corridor Site Classification/Common Name Scientific Name Preferred Habitat Waterfowl Mallard Northern Pintail Gadwall American Widgeon Cinnamon Teal Vultures and Raptors Bald Eagle Northern Harrier Swainson's Hawk Red-tailed Hawk Ferruginous Hawk Golden Eagle American Kestrel Prairie Falcon Gallinaceous Birds Ring-necked Pheasent Wild Turkey Northern Bobwhite Shorebirds Killdeer Spotted Sandpiper Mountain Plover Upland Sandpiper Long -billed Curlew Common Snipe Wilson's Phalarope Pigeons and Doves Rock Dove Mourning Dove Owls Common Barn -Owl Eastern Screech -Owl Great Horned Owl Burrowing Owl Long-eared Owl Short -eared Owl Anas platyrhynchos Anas acuta Anas strepera Anas americana Anas cyanoptera Haliaeetus leucocephalus Circus cyaneus Buteo swainsoni Buteojamaicensis Buteo regalis Aquila chrysaetos Falco sparverius Falco mexicanus Phasianus colchinus Meleagris gallopavo Colinus virginianus Charadrius vociferous Actitis macularia Charadrius montanus Bartramia longicauda Numenius americanus Gallinago gallinago Phalaropus tricolor Columba livia Zenaida macroura Tyto alba Otus asio Bubo virginianus Athene cunicularia Asio otus Asio jlammeus Cr W/OG W/OG W/OG W/OG Ag Cr Ag Ag Ag Ag Ag MXP Ag, Cr Ag Ag Cr, Ag W/OG SgP SgP SgP, Cr W/OG W/OG, Cr Ag Ag, Cr Ag Ag Ag rodent burrows RpL Ag Exhibit H Page 8 Table 2. Breeding Bird Species Potentially Inhabiting the Tucson South Conveyor Corridor Site continued Classification/Common Name Scientific Name Preferred Habitat Nighthawks and Goatsuckers Common Nighthawk Hummingbirds Black -chinned Hummingbird Woodpeckers Lewis' Woodpecker Red-headed Woodpecker Passerines Say's Phoebe Cassin's Kingbird Western Kingbird Horned Lark Eastern Kingbird Northern Rough -winged Swallow Bank Swallow Cliff Swallow Barn Swallow Blue Jay Black -billed Magpie American Crow Chihuahuan Raven Black -capped Chickadee Eastern Bluebird American Robin Northern Mockingbird Brown Thrasher Cedar Waxwing Loggerhead Shrike European Starling Yellow Warbler Cassin's Sparrow Vesper Sparrow McCrown's Longspur Chestnut -collared Longspur Bobolink Red -Winged Blackbird Chordeiles minor Archilochus alexandri Melanerpes lewis Melanerpes erythrocephalus Sayornis saya Tyrannus vociferans Tyrannus verticalis Eremophila alpestris Tyrannus tyrannus Stelgidopteryx serripennis Riparia riparia Hirundo pyrrhonota Hirundo rustica Cyanocitta cristate Pica pica Corvus brachyrynchos Corvus cryptoleucus Parus altricapillus Sialia sialis Turdus migratorius Mimus polyglottos Toxostoma rufum Bombycilla cedorum Lanius ludovicianus Sturnus vulgaris Dendroica petechia Aimophila cassinii Pooecetes gramineus Calcarius mccownii Calcarius ornatus Dolichonyx oryzivorus Agelaius phoeniceus MXP RpL Ag Ag Ag Ag Ag MXP Ag Ag Ag Ag Ag Ag Ag Ag SgP Ag RpL Ag Ag Ag Ag SgP Ag Ag SgP MXP SgP SgP Cr, hayfields Ag Exhibit H Page 9 Table 2. Breeding Bird Species Potentially Inhabiting the Tucson South Conveyor Corridor Site continued Classification/Common Name Scientific Name Preferred Habitat Passerines Western Meadowlark Sturnella neglecta Brewer's Blackbird Euphagus cyanocephalus Common Grackle Quiscalus quiscula Brown -headed Cowbird Molothrus ater Orchard Oriole Icterus spurius Northern Oriole Icterus galbula American Goldfinch Carduelis tristis House Sparrow Passer domesticus Habitat Types MXP Mixed grasses of habitat alteration SgP Shortgrass-Prairie W/OG Wet open ground Ag Agriculture Cr Croplands Cr Ag Ag Ag Ag Ag Ag Ag Exhibit H Page 10 Table 3. Reptile and Amphibian Species Potentially Inhabiting the Tucson South Conveyor Corridor Site Classification/Common Name Scientific Name Preferred Habitat Amphibians Salamanders Tiger Salamander Toads and Frogs Great Plains Toad Woodhouse's Toad Boreal Chorus Frog Plains Spadefoot Turtles Common Snapping Turtle Western Painted Turtle Ornate Box Turtle Western Spiny Softshell Reptiles Lizards Northern Earless Lizard Short -horned Lizard Red -lipped Prairie Lizard Northern Prairie Lizard Prairie -lined Racerunner Skinks Northern Many -lined Skink Snakes Eastern Yellowbelly Racer Plains Hognose Snake Milk Snake Northern Water Snake Bullsnake Western Plains Garter Snake Prairie Rattlesnake Habitat SgP OW Ag Cr Ambystoma tigrinum Bufo cognatus Bufo woodhousei Pseudacris triseriata maculata Scaphiopus bombifrons Chelydra serpentina Chrysemys picta belli Terrapene ornata Trionys spiniferus hartwegi Holbrookia maculata Phrynosoma douglassi Sceloporus undulatus erythrocheilus Sceloporus undulatus garmani Cnemidophorus sexlineatus viridis Eumeces multivirgatus Coluber constrictor flaviventris Heterodon nasicus Lampropeltis triangulum Nerodia sipedon Pituophis melanoleucus sayi Thamnophis radix haydeni Crotalus viridis Types Shortgrass-Prairie Open Water Agriculture Croplands all types SgP, Ag SgP, Ag Ag SgP OW OW SgP OW SgP, Ag SgP SgP SgP SgP SgP, Ag SgP, Ag SgP, Ag SgP, Ag OW SgP, Ag SgP SgP Exhibit H Page 11 Hello