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Home My WebLink About20222298.tiffUSE BY SPECIAL REVIEW (USR) APPLICATION FOR PLANNING DEPARTMENT USE: AMOUNT $ APPLICATION RECEIVED BY DATE RECEIVED: CASE # ASSIGNED: PLANNER ASSIGNED: PROPERTY INFORMATION Is the property currently in violation?I' Parcel Number: 0 8 0 3 No / _2 4 P _4 _0 Site Address: 23581 County Rd 66, Greeley, CO 80631 Yes Violation Case Number: 0 _ 0 0 2 Legal Description: PT S2SE4 24-6-65 LOT B REC EXEMPT RE -4581 Section: 24 , Township 06 N, Range 65 W Zoning District: AG Acreage: 69.749 Within subdivision or townsite? N No / P Yes Name: Water (well permit # or water district tap #): Sewer (On -site wastewater treatment system permit # or sewer account #): Floodplain ONo / P Yes Geological Hazard No / PROJECT USR Use being applied for: Solar Energy Facility (SEF) Name of proposed business: USS Cogburn Solar LLC r Yes Airport Overlay 1No IF Yes PROPERTY OWNER(S) (Attach additional sheets if necessary.) Name: David Cogburn Company: Phone #: 970-391-2124 Email: case4894@aol.com Street Address: 32485 County Rd 49 City/State/Zip Code: Greeley, Colorado 80631 APPLICANT/AUTHORIZED AGENT (Authorization Form must be included if there is an Authorized Agent) Name: Michelle Simms Company: US Solar Phone #: 612-299-1213 Email: michelle.simms@us-solar.com Street Address: 100 N 6th St, #410B City/State/Zip Code: Minneapolis, MN 55403 I (We) hereby depose and state under penalties of perjury that all statements, proposals, and/or plans submitted with or contained within the application are true and correct to the best of my (our) knowledge. All fee owners of the property must sign this application. If an Authorized Agent signs, an Authorization Form signed by all fee owners must be included with the application. If the fee owner is a corporation, evidence must be included indicating the signatory has the legal authority to sign for the corporation. dVAIVVVVI Signature Michelle Simms 02/07/2022 Date Signature Date Print Print 12/15/21 9 DEPARTMENTS OF PLANNING BUILDING, DEVELOPMENT REVIEW AND ENVIRONMENTAL HEALTH 1555 NORTH 17Th AVENUE GREELEY, CO 80631 AUTHORIZATION FORM I David Cogburn Michelle Simms of US Solar We { ), , give permission to (Owner — please print) (Authorized Agent/Applicant—please print) to apply for any Planning, Building, Access or OWTS permits on our behalf, for the property located at (address or parcel number) below: 23581 County Rd 66, Greeley, CO 80631 Parcel #080324400002 PT S2SE4 24-6-65 LOT B REC E) 24 06 65 Legal Description: of Section , Township N, Range W N/A Subdivision Name: Lot Block Property Owners Information: Address: 32485 County Rd 49, Greeley, Colorado 80631 970-391-2124 Phone: case4984@aol.com E-mail: Authorized Agent/Applicant Contact Information: 100 N 6th St #410B, Minneapolis, MN 55403 Address: 612-299-1213 Phone: E -Mail: michelle.simms@us-solar.com Correspondence to be sent to: Owner Fl Authorized AgentlApplicant E by: Mail El Email Fl Additional Info: US Solar will be facilitating the application process for a USR for a Solar Energy Facility (SEF) with Weld County on the property owned by David Cogburn outlined above. Owner Signature: Owner Signature: V'. ft Date: Date: ;),/ 7/A. 12/15/21 11 COVER LETTER March 25, 2022 Weld County Department of Planning Services 1555 N 17th Ave Greeley, CO 80631 RE: Application by USS Cogburn Solar LLC for a Use by Special Review Permit to Construct and Operate a Solar Energy Facility Dear Weld County Planning Commission, Attached, please find an application for a Use by Special Review Permit ("USR") to construct and operate a community solar garden on County Rd 66 in Weld County. Pursuant to Section 23 of the Weld County Zoning Code (the "Ordinance"), the request is being made by USS Cogburn Solar LLC, a subsidiary of United States Solar Corporation ("US Solar"). US Solar, a developer/owner/operator based in Minnesota, seeks to make the benefits of solar more accessible. We coordinate all Project details site acquisition, development, interconnection, permitting, finance, construction, operations, and maintenance. USS Cogburn Solar LLC plans to develop and construct a 2.4 -megawatt (MW) community solar garden (the "Proposed SEF") in Weld County on approximately 15 acres of parcel 0803-24-4-00-002 at 23581 County Rd 66, Greeley, CO 80631 (the "Property") through Weld County's USR process. The Proposed SEF will provide significant energy savings to approximately 225 low-income households in Colorado, as well as provide savings opportunities to approximately 350 households. The US Solar team appreciates the coordination and insights already provided by Weld County staff and looks forward to working with Weld County. Together, we will ensure that this Proposed SEF will operate safely and efficiently over its lifespan, while providing environmental, financial, and social benefits to the surrounding area. Please contact us with any questions, comments, or points for clarification. We look forward to working with the Commission on this Proposed SEE. Sincerely, Volad\iruilaveitiffia. Michelle Simms — Project Developer USS Cogburn Solar LLC 100 N 6th St., Suite 410E Minneapolis, MN 55403 W: (612) 299.1213 E: michelle.simms@its-solar.cam PLANNING QUESTIONNAIRE 1. Explain the proposed use and business name. USS Cogburn Solar LLC respectfully submits this USR application to develop, construct, own, and operate a 2.4 -megawatt (MW) community solar garden (the "Proposed SEF"). The Proposed SEF is sited in Weld County on approximately 15 acres of parcel 0803-24-4-00-002, owned by David Cogburn, at 23581 County Rd 66, Greeley, CO 80631. lir Parcel Number i = tificati i 0803-24-4-00-002 Site Address i 23581 County Rd 66, Greeley, CO 80631 Project Capacity 2.4 MWac 15 u rojectAcreage i Site Control Status Memorandum recorded Landowner David Cogburn Current Use of Pro • e Agriculture The Proposed SEF will be interconnected to Xcel Energy's existing distribution system on County Rd 66. The Proposed SEE is permitted through the Use by Special Review process per Section 23 of the Weld County Zoning Code. 2. Explain the need for the proposed use. The Proposed SEE will produce clean, local electricity, which will be distributed on Xcel Energy's existing distribution lines in the Greeley area. Additionally, the Proposed SEF has an interconnection agreement through Xcel Energy's Solar*Rewards Community — Community Solar Program. When the Proposed SEF is operational, residents, businesses, and public entities located in Xcel Energy's service territory can "subscribe" to the Proposed SEF and save on their Xcel Energy electric bills through the community solar program. The Proposed SEF will provide significant electric savings to low-income Coloradans and will offer local households the opportunity to save money on their electric bills. 3. Describe the current and previous use of the land. Currently the land is used for agriculture, specifically row crops. David Cogburn will continue to farm the remaining Pfti58 acres of the parcel, as well as his 73 -acre parcel directly north of the Proposed SEF parcel. 4. Describe the proximity of the proposed use to residences. The nearest residence is located approximately 100' west of the Proposed SEF. The Proposed SEF is located within 500' of approximately four (4) residences. US Solar will provide ample information to residences in the vicinity of the Proposed SEF - US Solar will be reaching out to all neighbors and will host a virtual open house to share information and answer questions that neighbors may have. 5. Describe the surrounding land uses of the site and how the proposed use is compatible with them. The land area surrounding the Proposed SEF is zoned Agricultural and is comprised mainly of farmsteads, homesteads, and farmland. The Proposed SEF is compatible with the surrounding land areas. The Proposed SEF is a permitted use by special review in Agricultural zoning district. Additionally, the Proposed SEF is designed in a manner that can allow it to seamlessly integrate into the community alongside the Agricultural zoned land adjacent to the Proposed SEF. Once operational, the Proposed SEF creates no noise, odor, light or flickering, vibration, vermin, dust, or other nuisances — its operation is virtually unnoticeable to neighboring properties and it will not impact surrounding property's right to quiet enjoyment. Additionally, the Proposed SEF is sited on 15 acres of Mr. Cogburn's 73 -acre parcel. He will continue to farm the remaining 58 acres of this parcel, as well as the 73 -acre parcel located just north of the Proposed SEF. Additionally, the land will be vegetated using a native habitat mix, which will decrease erosion, prevent noxious weed growth and establishment, and preserve the land to return to other uses after the Proposed SEF is decommissioned. The meadow will be maintained by vegetation experts to facilitate establishment. 6. Describe the hours and days of operation (i.e. Monday thru Friday 8:00 a.m. to 5:00 p.m.). The Proposed SEIF will operate daily, 365 days a year, from sunrise to sunset. 7. Describe the number of employees including full-time, part-time and contractors. If shift work is proposed, detail number of employees, schedule and duration of shifts. The Proposed SEF is unmanned. One full-time employee may visit the Proposed SEF quarterly, and vegetation contractors will visit the site quarterly for vegetation management. Full time employees remotely monitor the site 2417. 8. Describe the maximum number of users, patrons, members, buyers or other visitors that the site will accommodate at any one time. During operation, two users will visit the site quarterly to perform routine maintenance and vegetation maintenance. In the event of an onsite event, there will be a maximum of approximately 100 patrons onsite. 9. List the types and maximum numbers of animals to be on the site at any one time (for dairies, livestock confinement operations, kennels, etc.). Not applicable - no animals will be onsite. 10. List the types and number of operating and processing equipment. The Proposed SEF will consist of the following: • 12,042 540 -watt Longi 540W solar modules * 40 Ginlong 185 kW inverters * 1 Transformer 11. List the types, number and uses of the existing and proposed structures. There are no existing structures on the property. The Proposed SEF does not propose any new structures. 12. Describe the size of any stockpile, storage or waste areas. There are no stockpile, storage, or waste areas proposed for the Proposed SEF. 13. Describe the method and time schedule of removal or disposal of debris, junk and other wastes associated with the proposed use. There is no debris, junk, or wastes generated or associated with the Proposed SEF. 14. Include a timetable showing the periods of time required for the construction of the operation. The construction process for the Proposed SEF takes approximately 5 months, with the majority of the installation occurring within a 10 week period. Driveway Construction November 15th 0 h, 2022 — Fence installation December 1st 15th, 2022 — Piles and Single Axis Trackers installed delivered and December 1st, 2022 — January 1st, 2023 Solar Modules delivered and installed December 15th, 2022 — January 15th, 2023 Inverters delivered and installed January 15th — February 15th, 2023 Transformer installed and equipment pad delivered and January 15th February 15th, 2023 — Wiring and interconnection February 15th — March 15th, 2023 Final seeding April 1st — May 1st, 2023 15. Describe the proposed and existing lot surface type and the square footage of each type (i.e. asphalt, gravel, landscaping, dirt, grass, buildings). The existing lot surface coverage consists of 73.3 acres of agricultural land. The proposed lot surface coverage consists of 14.9 acres of pollinator -friendly native habitat mix, 17,300 square feet of gravel (creating the driveway), 610 square feet of concrete (hosting the equipment pad), and 58.05 acres of agricultural land. 16. How many parking spaces are proposed? How many handicap -accessible parking spaces are proposed? There will be space on the gravel driveway for two (2) standard vehicles to park for equipment and/or vegetation maintenance activities. 17. Describe the existing and proposed fencing and screening for the site incl parking and outdoor storage areas. uding all There is no existing fencing and screening on the site. The proposed USR will be enclosed in a farm field style fencing that is made with page wire and wooden posts. The farm field style fencing is approximately eight (8) feet in height and meets National Electric Code requirements. Farm field style fencing blends in with the existing community and land use. The farm field style fencing is illustrated in the photo below: US Solar is initiating conversations with all neighbors within 500' of the Proposed SEF. USS cogburn Solar will work with residents within 500' of the Proposed SEF to discuss the project and receive a signature on a waiver or informed consent agreeing to a lesser setback without screening. If we are unable to secure waivers for all neighbors within this region, we will propose installing appropriate screening as described below. 18. Describe the existing and proposed landscaping for the site. The property's ground cover has previously consisted of agricultural land. The Proposed SEF would implement a pollinator -friendly native habitat mix on the property, designed specifically for the land characteristics. Additionally, should the Proposed SEF be unable to secure a waiver of informed consent agreeing to a lesser setback without screening from all residents within a residential lot of a planned subdivision or planned unit development within 500' of the Proposed SEF, the Proposed SEF will implement a single row of Rocky Mountain Juniper trees along the fencelines of the Proposed SEF that border the neighboring homes. 19. Describe reclamation procedures to be employed as stages of the operation are phased out or upon cessation of the Use by Special Review activity. When the Solar Garden reaches the end of its operational life, the component parts will be dismantled and recycled as described in full detail in Decommissioning — Reclamation Plan. US Solar's lease contract with the property owner requires us to decommission and restore the site at our expense. The decommissioning plan would commence at the end of the lease term or in the event of twelve (12) monthsof non -operation. At the time of decommissioning, the Solar Garden components will be dismantled and removed using minimal impact construction equipment, and materials will be safely recycled or disposed. USS cog burn Solar LLC will be responsible for all the decommissioning costs. Please refer to Decommissioning —Reclamation Plan for the full reclamation procedures. 20. Describe the proposed fire protection measures. USS Cogburn Solar LLC will provide lock code access to the Galeton Fire Protection District, allowing them access to the Proposed SEF in case of emergency. Additionally, the Project will provide a training document to the Galeton Fire Protection District. The access road provides a sufficient hammer head turnaround and sufficient access for emergency vehicles to enter the site. Additionally, the native habitat will be mowed periodically to reduce risk and/or spread of fire. 21. Explain how this proposal is consistent with the Weld County Comprehensive Plan per Chapter 22 of the Weld County Code. The Proposed SEF is consistent with the Weld County Comprehensive Plan per Chapter 22 of the Weld County Code. Specifically, the use is consistent with the Guiding Principles in Sec. 22-2-10 — Respecting our Agricultural Heritage, Respecting Private Property Rights, Promoting Economic Growth and Stability, and Protecting Health, Safety, and General Welfare. The Proposed SEF is consistent with the following Land Use Goals and Objectives: A. Commit to the Economic Future of Ariculture. The Proposed SEF does not inhibit agricultural production nor operations, maintaining the area's agricultural character. The Proposed SEF will use minimal acreage of the landowner's farming operation while supporting the longevity of his farming operation. Additionally, the Proposed SEF will minimize erosion and improve soil quality with the native habitat mix ground cover. B. Locate urban development in urban areas. The Proposed SEF will maintain the agricultural nature of this property and the surrounding areas. C. Harmonize development with surrounding land uses. The Proposed SEF will blend seamlessly with the existing agricultural regions surrounding all sides of the property, and the Proposed SEF will ensure that the property is left open and limited from permanent development, and will preserve the land and maintain the rural character of this region. The Proposed SEF is consistent with the following Economic development goals and objectives: A. Support compatible economic development opportunities. The Proposed SEF promotes economic growth and stability through providing jobs, offering economic savings to Weld County residents, and providing tax payments throughout the life of the Proposed SEF. The Proposed SEF is consistent with the following Environmental goals and objectives: A. Encourage responsible and sustainable water usage. The Proposed SEF is sited on a property that has a center -pivot irrigator. The center pivot irrigator will be able to continue irrigating the .132 acres owned by David Cogburri in this vicinity, and the water will be sustainably used. B. Protect water quality within the County. The native habitat mix that will blanket the Proposed SEF will minimize stormwater erosion and runoff - native habitat has been shown to reduce stormwater runoff by 23%. Additionally, the native habitat mix will purify surface and groundwater and will reduce contamination. The Proposed SEE is consistent with the following Natural Resource goals and objectives: A. Preserve wetlands and critical habitats. There are no wetlands or critical habitats located on the property where the Proposed SEF is sited. B. Support responsible energy and mineral development The Proposed SEF will utilize existing infrastructure to facilitate energy production and will not place a burden on existing infrastructure. Additionally, the Proposed SEF will conserve the land and minimize impact on surrounding land and land uses, and will preserve agricultural areas and enhance the rural landscape. Because the Proposed SEF is not a permanent use, it will preserve the rural landscape and the land can be returned to rangeland after the life of the Proposed SEF. 22. Explain how this proposal is consistent with the intent of the zone district in which it is located. (Intent statements can be found at the beginning of each zone district section in Article Ill of Chapter 23 of the Weld County Code.) The Proposed SEF is consistent with the intent of the A (Agricultural) Zone District. The Proposed SEE is blends seamlessly with the surrounding community, does not interfere with area agricultural operations, supports the agricultural sector and equips the landowner to continue farming, and preserves the open rural nature of the A Zone District. Additionally, the Proposed SEE aligns with the A (Agricultural) Zone District's goal of providing areas for energy development without the interference of other, incompatible land USES. 23. Explain how this proposal will be compatible with future development of the surrounding area or adopted master plans of affected municipalities. The Proposed SEF is compatible with future development of the surrounding area or adopted master plans of affected municipalities. There are no municipalities in the vicinity, so the Proposed SEF will not interfere with their future development or adopted master plans. The Proposal is compatible with future development by maintaining the A (Agricultural) zoning designation and character. Additionally, the Proposed SEF is not a permanent use — upon the end of the Proposed SEF's life, the land can be converted to other uses in accordance with land use code at that time. Therefore, the Proposed SEF does not hinder future development of Weld County or either of the surrounding Cities. 24. Explain how this proposal impacts the protection of the health, safety and welfare of the inhabitants of the neighborhood and the County. The Proposed SEF will have no impact on the protection of the healthy, safety, and welfare of the inhabitants of the neighborhood and the County. The Proposed SEE is designed in a manner that can allow it to seamlessly integrate into the community alongside the Agricultural zoned areas adjacent to the Proposed SEF. Once operational, the Proposed SEF creates no noise, odor, light or flickering, vibration, vermin, dust, or other nuisances. There are no impacts to existing infrastructure in Weld County. The Proposed SEF will not impact traffic, will not place a burden onCounty services, and will not impact surrounding properties' right to quiet enjoyment. USS Cogburn Solar LLC will obtain all required building and electrical permits and will ensure that the safety of all parties is of utmost importance throughout the life of the Proposed SEF. 25. Describe any irrigation features. If the proposed use is to be located in the A (Agricultural) Zone District, explain your efforts to conserve prime agricultural land in the locational decision for the proposed use. The Proposed SEF is located on soils that the NRCS identify as "some prime farmland if irrigated." USS cogburn Solar LLC will be vegetated with a pollinator -friendly native grass mix that will continue to regenerate and revegetate the land throughout the life of the Proposed SEF, preserving the prime farmland. Additionally, because the Proposed SEF only covers a fraction of Mr. Cogbum's total farm operation and is a temporary use, there is minimal farmland taken out of operation in comparison to other proposed uses. 26. Explain how this proposal complies with Article V and Article Xl of Chapter 23 if the proposal is located within any Overlay Zoning District (Airport, Geologic Hazard, or Historic Townsites Overlay Districts) or a Special Flood Hazard Area identified by maps officially adopted by the County.. The Proposed SEE is located within the Greeley -Weld Airport Overlay Zoning District. The Proposed SEF is not located in the Geologic Hazard or Historical Townsites Overlay Districts or a Special Flood Hazard Area, as identified in the Weld County GIS Mapping Data. The Proposed SEE complies with Article V of Chapter 23. The Proposed SEE complies with the height limitations outlined in Sec. 23-5-30. The Proposed SEE will not create electrical interference, include any lights, result in any glare in the eyes of pilots, impair visibility in the vicinity of the Airport, create bird strike hazards, or otherwise interfere in any way with the operations of the Airport as required by Sec. 23-5-40. USS Cogburn Solar LLC will be required to file with the Federal Aviation Administration, who will ensure that the Proposed SEE fully complies with FAA requirements for the Greeley -Weld County Airport. 27. Detail known State or Federal permits required for your proposed use(s) and the status of each permit. Provide a copy of any application or permit. Federal: The Army Corps of Engineers (ACE) have performed a field Wetland Delineation on the property and will provide a letter of clearance if any wetlands are onsite. As discussed above, USS Cogburn Solar LLC will also file with the Federal Aviation Administration (FAA). State: USS Cogburn Solar LLC will apply for and obtain State of Colorado Electrical Permits and SWPPP permits prior to mobilizing for construction. Should any additional state -level permits be required for the Project, USS Cogburn Solar LLC will ensure that all permits are received. u 100 N 6th Street, Suite 410B 612.266.2230 Minneapolis, MN 55403 www.us-solar.com PUBLIC WORKS niiGcrinuNAIRE 1. Describe the access location and applicable use types (i.e., agricultural, residential, commercial/industrial, and/or oil and gas) of all existing and proposed accesses to the parcel. Include the approximate distance each access is (or wi l l be if proposed) from an intersecting county road. State that no existing access is present or that no new access is proposed, if applicable. USS Cogburn Solar LLC proposes a new access location on the north side of County Rd 66 at approximately 40.4641770, -104.606793°. The width of the apron of the new access location is approximately 71' where it intersects with County Road 66, and the apron then tapers to a width of approximately 14'. The proposed access will be used for routine SEF maintenance services, as well as vegetation maintenance. There is one existing unmaintained field access located just east of the proposed access on County Road 66, which is used for agricultural uses. . Describe any anticipated cha.nge(s) to an existing access, if applicable. There will be no anticipated change(s) to an existing access. 3. Describe in detail any existing or proposed access gate including its location. There are no existing access gates on the property. USS Cogburn Solar LLC proposes installing an access gate at the new proposed access location on the southwestern corner of the Property. The access gate will have two doors that swing open and will be locked with padlocks providing access to Xcel Energy, US Solar staff and contractors, and Galeton Fire Protection District. 4. Describe the location of all existing accesses on adjacent parcels and on parcels located on the opposite side of the road. Include the approximate distance each access is from an intersecting county road. The existing accesses from adjacent parcels are as follows: • Existing driveway access on the north side of County Rd 66, approximately 1,100 feet west of the proposed access. • Existing field access on the north side of County Rd 66, approximately 1,500 feet west of the proposed access. Existing driveway access on the north side of County Rd 66, approximately 2,500 feet west of the proposed access. • Existing oil and gas access on the west side of County Rd 49, approximately 1,640 feet north of the intersection of CR 49 and CR 66. • Existing driveway access on the east side of County Rd 49, approximately 667 feet north of the intersection of CR 49 and CR 66. • Existing driveway accesses on the west side of County Rd 49, approximately 2,225 feet and 2,500 feet north of the intersection of CR 49 and CR 66. Existing accesses on parcels located on the opposite side of the road are as follows: u 100 N 6th Street, Suite 410B 612.266.2230 Minneapolis, MN 55403 www.us-solar.com • Existing driveway access on the south side of CR 66 for three (3) residences, approximately 169 feet, 388 feet, and 529 feet east, respectively, of the proposed access. • Existing field access on the south side of CR 66, approximately 1,250' west of the proposed access. 5. Describe any difficulties seeing oncoming traffic from an existing access and anticipated difficulties seeing oncoming traffic from a proposed access. any There are no difficulties seeing oncoming traffic from the existing access and no anticipated difficulties seeing oncoming traffic from the proposed access. County Road 66 runs straight east to west. . Describe any horizontal curve (using terms like mild curve, sha etc.) in the vicinity of an existing or proposed access. There are no horizontal curves in the vicinity of the proposed access. rp curve, reverse curve, 7. Describe the topography (using terms like flat, slight hills, steep hills, etc.) of the road in the vicinity of an existing or proposed access. The topography of County Road 66, and in the vicinity of the proposed access, is flat. u 100 N 6th Street, Suite 410B 612.266.2230 Minneapolis, MN 55403 www.us-solar.com ENVIRONMENTAL uFe1 TH QIIFSTIONNAIRE 1. Discuss the existing and proposed potable water source. If utilizing a drinking water well, include either the well permit or well permit application that was submitted to the State Division of Water Resources. If utilizing a public water tap, include a letter from the Water District, a tap or meter number, or a copy of the water bill. There is no existing or proposed potable water source for USS Cogburn Solar LL (the "Proposed SEF"). The Proposed SEF will not require a potable water source. 2. Discuss the existing and proposed sewage disposal system. What type of sewage disposal system is on the property? If utilizing an existing on -site wastewater treatment system, provide the on -site wastewater treatment permit number. (If there is no on -site wastewater treatment permit due to the age of the existing on -site wastewater treatment system, apply for a on -site wastewater treatment permit through the Department of Public Health and Environment prior to submitting this application.) If a new on -site wastewater treatment system will be installed, please state "a new on -site wastewater treatment system is proposed." (Only propose portable toilets if the use is consistent with the Department of Public Health and Environment's portable toilet policy.) There is no existing sewage disposal system, and the Proposed SEF is not proposing a sewage disposal system as there will only be approximately two (2) users onsite quarterly. During the construction period, contractors will place temporary portable toilets at the Project site to provide for temporary wastewater disposal needs during the construction phase of the Proposed SEF in accordance with the Department of Public Health and Environment's portable toilet policy. . If storage or warehousing is proposed, what type of items will be stored? During the construction period, a laydown area will be implemented on the property to store construction materials for the Proposed SEF. The laydown yard will be revegetated and implemented into the Proposed SEF after completion. No other storage or warehousing is proposed. 4. Describe where and how storage and/or stockpile of wastes, chemicals, and/or petroleum will occur on this site. Trucks used to bring construction materials to the site, pickup trucks brought onsite during routine maintenance, and vegetation maintenance equipment will contain petroleum in their standard fuel system. There will be no other storage and/or stockpile of wastes, chemicals, or petroleum on this site. . If there will be fuel storage on site, indicate the gallons and the secondary containment. State the number of tanks and gallons per tank. The fuel present onsite will be stored within the standard fuel system of standard lawn mowers, pickup trucks, and semi trucks onsite during construction, routine maintenance, or vegetation maintenance. u 100 N 6th Street, Suite 410B 612.266.2230 Minneapolis, MN 55403 www.us-solar.com 6. If there will be washing of vehicles or equipment on site, indicate how the wash water will be contained. There will be no washing of vehicles or equipment onsite. 7. If there will be floor drains, indicate how the fluids will be contained. There will be no floor drains onsite. . Indicate if there will be any air emissions (e.g. painting, oil storage, etc.). There will be no air emissions onsite. 9. Provide a design and operations plan if applicable (e.g. composting, landfills, etc.). The Proposed SEF does not include composting, landfills, or other similar uses. 10. Provide a nuisance management plan if applicable (e.g. dairies, feedlots, etc.). The Proposed SEF does not include a dairy, feedlot, or other similar use. B. Additional information may be requested depending on type of land use requested. 100 N 6th Street, Suite 410B 612.260.2230 Minneapolis, MN 55403 www.us-solar.com USS Cogburn Solar LLC is initiating outreach with all neighbors within 500' of the proposed SEF. The Proposed SEF will work with residents that are located within 500' of the proposed SEF to discuss the project and receive a signature on a waiver or informed consent agreeing to a lesser setback without screening. LANDSCAPE SCREENING Should USS Cogburn Solar LLC be unable to secure waivers for all neighbors within this region, we will proposed installing landscape screening along the fenceline of the Proposed SEF where it borders the neighbors within 500'. USS Cogburn Solar LLC has consulted with local contractors and arborists with experience in landscape screening in the area, including Natural Resource Services, Inc, to discuss landscape screening species that will best adapt to the land characteristics and climate in Weld County, should landscaping ultimately need to be implemented. For the Proposed SEF, should screening be required, USS Cogburn Solar LLC will propose planting a row of Rocky Mountain Juniper along the fenceline of the Proposed SEF where it borders the neighbors within 500'. Rocky Mountain Juniper trees have historically performed very well on sites with these soil conditions, location and elevation, and local plant community composition. In addition to providing a visual buffer from neighboring residences, our landscape screening is designed to fit with the neighborhood and benefit the local environment. For information on vegetative planting, please refer to Dust and Weed Mitigation Plan. u 100 N 6th Street, Suite 410B 612.266.2230 Minneapolis, MN 55403 www.us-solar.com DRAINAGE REPORT / SURFACE DRAINAGE ANALYSIS Attached below is the Drainage Report l Surface Drainage Analysis for USS Cogburn Solar LL. FINAL DRAINAGE REPORT FOR THE USS Cogburn Sol County of Weld, Colorado FEBRUARY 2022 PREPARED FOR: PREPARED BY: Westwood drainage Report USS Cogburn Solar LLC Weld County, Colorado Prepared For: United States Solar Corporation 10O N 6th Street, Suite 41OB Minneapolis, MN 55403 County Case Number USR VC-XXXX Number: Roo 31°01.02 Date: February 28, 2O22 Prepared By: We od 12701 Whitewater Drive, Suite 3OO Minnetonka, MN 55343 (952) 937-5150 Westwood Drainage Report I USS Cogburn Solar LLC February 28, 2022 Table of Contents Project Site ......................................... ............................................ 2 GeneralDescription of P"roject............................................................................... 2 Drainage Design n.............................................••••••••••••••••••••••••••8000 •••••••••••••••••••••••• 2 Storrnwater Runoff Analysis Water Quality Drainage Improvements AdjacentAreas....................................................................................................... 4. OnsiteSoils............................................................................................................ 4. Offsite Soils4 Methodologies Used for Drainage Report and Analysis ......................................... Timing/Phasing Schedule BMP Installation, Inspection, and Removal Permanent Stabilization .......................... 4 4 5 .......................••••••••••••••••••••••••5 References Cited....- ........................-........................-...................... Attachments Attachment 1: Cogburn Soler LLC Facility Site Plan Attachment 2: NOAA Atlas 14 Rainfall Data Attachment : Rational Method Calculation and MHFD Detention Attachment 4 USDA Web Soil Survey Map Confidential and Proprietary. TBPLS Firm #10074302 Drainage Report I USS Cogburn Solar LLC February 28, 2022 Project Site This Drainage Report has been prepared on behalf of United States Solar Corporation, for the proposed construction of the USS Cogburn Solar LLC Facility in Weld County, Colorado hereinafter referred to as the project. The proposed development is located in the SEIM Quarter of Section 24, Township 6 North, and Range 65 West of the 6th Prime Meridian. More specifically the Project site is approximately 15 acres of land and is located approximately 6 miles northeast of Garden City and approximately'/4 mile west of the intersection of Weld County Road (\VCR) 49 and WCR 66 in Weld County, Colorado. The site is covered intermittently with agricultural row crops depending on time of year. The ground surface slopes to the northeast at an average slope of approximately 0.35%. The site does not contain and FEIvIA flood hazard zones. General escription of Project It is proposed to develop approximately 15 acres ofland for the project of an approximate 2.4 MW solar array. The solar array will deliver renewable energy under a power purchase agreement (PPA). The facility is designed for un-manned operation except for bi-annual maintenance. Therefore, this facility will not represent any significant traffic impact to the surrounding county roads. Upon termination of the PPA, the improvements will be removed, and the land will be restored to historic conditions. Drainage Design The area under the solar panels will be planted with a low -maintenance grass seed mix. Very little additional impervious surface will be added to the site including gravel access roads and inverter/equipment pads. Per Weld County Public Works solar panels are considered 25% impervious on soils belonging to Hydrologic Soil Groups C and D. Given this, the site will need a detention pond per Weld County requirements. In proposed conditions runoff will continue to sheet flow to the northeast and east as it does in existing conditions and be routed to the basin southeast of the solar array. This basin will outlet into the ditch to the south of the site. Historically stormwater runs northeast then continues northeast. When the site is fully vegetated after construction, stormwater will flow off the solar panels, onto the ground, and run through the grass. The onsite soils, which are all categorized as hydrologic soil group C (Attachment 4) except for a very small area in the southwest portion of the site, are minimally conducive to infiltration. The soil type was also categorized as a clay loam for the runoff coefficient. The fully vegetated site will slow runoff and encourage partial infiltration. The site imperviousness increases from 2% to 6.6% between existing and proposed conditions due to Weld County considering solar panels to be partially impervious, however all ground below the panels will still remain pervious so the site runoff is considered conservative. The existing imperviousness was determined as 2% as the existing landcover is entirely composed of undeveloped agricultural area. The proposed imperviousness was determined by considering all solar array areas as 25% impervious, gravel access roads as 40% impervious, paved areas/inverters and equipment pads as i oo % impervious, and meadow grass areas as 2% impervious (considering meadow to be undeveloped areas). The offsite contributing drainage area was also considered 2% as it should remain an undeveloped agricultural area. A summary of the proposed areas and associated imperviousness can be seen in Table 1 below. 2 I Confidential and Proprietary. TBFLS Firm #10074302 Drainage Report I USS Cogburn Solar LLC February 28, 2022 TABLE 1: PROPOSED SITE IMPERVIOUSNESS INFORMATION Land cover Type Area (acres) Imperviousness Area (acres) Solar Panels 3.71 0.93 Gravel Access Road 0.40 0.16 Inverter/Equipment Pad 0.01 0.01 Meadow Grass 10.88 0.22 Undeveloped Agricultural 7.12 0.14 Total 22.12 6.60 Total imperviousness of 6.6o% was found by dividing the total impervious area by the total site area + offsite contributing area. Stormwater Runoff Analysis A detention pond has been sized to store the stormwater runoff generated by the 1 -hour, 1OO- year storm falling on the developed site and release of the detained water at the historic runoff rate of the 1 -hour, 1O -year storm falling on the undeveloped site for non -urbanizing areas. Historic is defined as an undeveloped site with a 2.O% imperviousness. The Rational Method was used to determine the runoff rates for the project. These calculations can be found in Attachment 3. Water Quality The project needs to treat the Water Quality Capture Volume (WQCV) for the added imperviousness of the project area per the USDCM Volume 3 Section 3. Using the equation m the manual the WQCV that needs to be captured based on a site imperviousness of 6.6o% is 0.103 ac -ft including the factor of safety of 1.2. This storage amount will be counted in the detention pond design. The water quality volume must be detained over 4O hours. Drainage Improvements The only proposed drainage improvement onsite is the required detention pond. The onsite detention pond was sized using the MHFD Detention Spreadsheet which can be found in Attachment 3 showing all necessary calculations. The pond exceeds the required volume of an ac -ft and reduces runoff for the 5, 10, and 1OO-year storm events. The existing and proposed runoff rates can be seen in Table 2 below. TABLE 2: EXISTING AND PROPOSED RUNOFF RATES 5 -Year 10 -Year 100 -Year Condition Storm Storm Storm Existing Runoff (cfs) Proposed Runoff without Basin (cfs) Proposed Runoff with Basin (cfs) 3.37 6.89 27.78 3.26 6.36 24.31 0.20 0.80 5.20 3 I Confidential and Proprietary. TBFLS Firm #10074302 Drainage Report J USS Cogburn Solar LLC February 28, 2022 Adjacent Areas There is a manmade pond and ditch running north south along the upstream side of the private road to the west of the site. This ditch and pond prevent most offsite runoff from entering the site, but some areas to the west of the site still flow onsite and are accounted for in runoff and basin sizing calculations. A ditch to the south of the site also captures water and prevents offsite runoff from flowing onsite from the south. Onsite Soils The soils for this project site are predominantly classified as hydrologic soil group (HSG) (Attachment 4). The soil types found in the project site area are Nunn Clay Loam, 0 to 1 percent slopes, and Otero Sandy Loam, 1-3 percent slopes. For the sake of this project, all soils onsite have been modeled as HSG type C. This soil information is based on the Natural Resources Conservation Service (NRCS) National Cooperative Soil Survey. The runoff coefficient typically referred to as a "C" value in Attachment 3 is larger in proposed conditions than in existing conditions, causing an increase in post -construction runoff, which is reduced to less than existing rates by the addition of the extended detention basin. Offsite Soils The soils within the offsite contributing drainage are to the site are classified as HSG C, the soil type remaining consistent with onsite soils as Nunn Clay Loam, o to 1 percent slopes. This soil information is based on the Natural Resources Conservation Service (NRCS) National Cooperative Soil Survey. Methodologies Used for Drainage • eport and Analysis The site does notqualify for an exemption to the stormwater detention requirement based on the Weld County ordinance for C soils due to the amount of added impervious area. This requires the site to have a detention basin. Existing and proposed discharge rates were calculated using the Rational Method. The Rational Method uses a runoff coefficient which is commonly referred to as a C value. This is not a soil type, but a value used to describe runoff rates of different land covers. Rainfall data was obtained from NOAA Atlas 14 (Attachment 2). Minimal grading is proposed to meet the tolerances of the proposed solar array. Drainage patterns will remain the same across most of the site, with the exception of routing runoff from the northeast portion of the site to the southeast basin, which in turn outlets into the ditch south of the site. Outside of the basin minimal grading is proposed onsite and drainage conditions will remain the same as existing across the remainder of the site. The offsite drainage area remains the same as existing conditions. Timing/Phasing Schedule In the initial and interim stages, the contractor shall install silt fence, vehicle traction control and concrete washout at the entrance, and a stabilized staging area. In the final stage of construction, seeding, mulching, and surface roughing shall be done in all disturbed areas, and erosion control blankets shall be installed on all slopes greater than 4:i. The contractor shall also remove the vehicle traction control, concrete washout, stabilized staging area, erosion control blanket, and silt fence in the final stages of construction. 4 I Confidential and Proprietary. TBFLS Firm #10074302 Drainage Report I USS Cogburn Solar LLC February 28, 2022 BMP Installation, Inspection, and Removal BMPs will be installed prior to project construction, except for the BMPs in the final stage. BMPs will be inspected weekly and as required by the County through project completion by the contractor. BMPs will be maintained and remain in place at least until construction is finished and the site is vegetated. Once all exposed areas have been covered, the BMPs may be removed. Since the project does not include any other disturbance, no additional site stabilization is necessary and/or warranted. Permanent Stabilization The project will be seeded with the Weld County's Fertile Loamy Soil Seed Mix to establish permanent stabilization after construction activity has ceased. Reference the Temporary and Permanent Seeding Table on page EC -2 of Chapter 7 Construction BMPs in the USDCM Manual, volume 3.As per the USDCM Manual, permanent seeding involves the loosening of soil, applying topsoil, drill seeding the disturbed areas to a depth not less than 1/4 inch and not to more than 3 inch, and crimping the seeded areas in straw mulch at a rate of 2 tons per acres to provide immediate erosion protection. Summary The proposed site will be designed to maintain its existing drainage patterns across most of the site, and then route runoff into the southeast basin which will outlet into the ditch just south of the site. The extended detention basin will contain storage for the Water Quality Capture Volume and 1OO-year storm and reduce runoff rates from existing conditions to proposed conditions. Based on the landcover conversion and the addition of the detention pond the site design will adequately protect public health, safety, and general welfare and will have no adverse impacts on public right-of-way or offsite properties. 5 I Confidential and Proprietary. TBPLS Firm #10074302 Drainage Report I USS Cogburn Solar LLC February 28, 2022 References Cited National Engineering Handbook, Part 630 Hydrology. Chapter 9 Hydrologic Soil -Cover Complexes. USDA. . NRC . 21 o -VI - fiEH, July 2004 The National Map,1-meter DEM, Elevation Data. Retrieved December 2021, from https: //datagateway.nres.usda.gov/ Web soil survey. Retrieved January 2022, from https://websoilsurvey.se.egov.usda.go/A.pp/Weboilurvey.aspx NOAA, Service, N. W. AHPS Precipitation analysis. Retrieved January 2022, from http://w ter.weather.go /precip/download. hp USGS. USGS water resources: About USGS water resources. Retrieved January 2022, from https: / /water.usgs.gov/ I /huc.htrnl USDA 2013 Crop Data Layer, Landeover data. Retrieved January 2022, from https://ww .nass.usda.gov/ Research_and_ ci ence/Cropland/ S RSia.php FEMA Flood Insurance Rate Maps. Retrieved January 2022, from Mips://msc.fema.gov,portal/adancearch#searchresultsanc. or 6 I Confidential and Proprietary. TBFLS Firm #10074302 J f '2)'211 I: .41 knk k )lot IMC ']L' .U2'•. ( L1'i LEGEND: 900 J ;CI G..7 0 0 PROJECT BOUNDARY EX. PARCEL LINE EX. ROAD RIt5HT-OF-WAY EX. EASEMENT EX. INDEX CONTOUR EX. INTERVAL CONTOUR EX. OVERHEAD POWER EX. UNDERGROUND GAS EX. ROAD CENTERLINE EX. DESKTOP DELINEATED WETLAN D EX. OIL AND GAS WELL EX. ELECTRIC EOX PROPOSED SOLAR ARRAY PROPOSED MODULE SETBACK PROPOSED ACCESS ROAD JM4 x - COUNTY ROAD 65 .. SF PROPOSED PROPOSED PROPOSED PROPOSED PROPOSED PROPOSED PROPOSED PROPOSED PROPOSED EX. 'SROUN PROPOSED PROPOSED SECURITY FENCE STORMWATER BASIN AND BERM STORMWATER SWALE ELECTRICAL EQUIPMENT UNDERGROUND MEDIUM VOLTAGE CABLE OVERHEAD MEDIUM VOLTAGE CABLE LAYDOWN YARD AND PARKING CULVERT SILT FENCE D SLOPE ROCK ENTRANCE RI P- RAP PROPOSED CULVERT PROPOSED SILT FENCE (TYP.) PROPOSED STORMWATER BERM. PROPOSED 1,5' V-SWALE. PROPOSED ACCESS DRIVE TO BE BUILT AT ELEVATION OF STORM WATER BERM PROPOSED PERMANENT STORMWATER BASIN REQUIRED STORAGE: 31,200 CF SEE SHEET 0402 FOR ELEVATIONS. PROPOSED EMERGENCY OVERFLOW AND ACCESS ROAD LOW WATER CROSSING PROPOSED ROC ENTRANCE GENERAL NOTES 1. INSTALLATION TO COMPLY WITH NEC 2017 ARTICLE 690 AND ALL APPLICABLE LOCAL STATE AND NATIONAL CODES OR REGULATIONS EQUIPMENT SHALL BE LABELED PER NEC 690 ARID XCEL ENERGY REGULATIONS 3. 16' ACCESS ROADS SHALL BE DESIGNED TO ACCOMMODATE ALL CONSTRUCTION. OPERATIONS, MAINTENANCE, AND UTILITY TRAFFIC THROUGHOUT THE SITE 4. THE ENTIRETY OF THE SITE REQUIRES VEGETATION ESTABLISHMENT PRIOR TO COMMENCEMENT OF ANY CONSTRUCTION ACTIVITIES TO REDUCE DISTURBANCE. VEGETATION MUST BE ESTABLISHED WITH A DENSITY OF 10% COVERAGE. ANNUAL VEGETATION COULD BE USED FOR PROJECT DURATIONS LESS THAN ONE GROWING SEASON. PERENNIAL VEGETATION ESTABLISHMENT IS NEEDED FOR PROJECT DURATIONS GREATER THAN ONE GROWING SEASON. Westwood Plmnc (6& fl21-66 0 5431 Grecn'.tay 9Ir,t., SLitc4G3 Middleton: WI 55562 we '315 and Fss_r:ur•1 W.2st.vuu:: Pr;afessior ,l Srrvi:as, 3RPARE❑ FOR. U$4OLAR 100 N 6th St. #4106 Minneapolis, MN, 55403 EEVISICK : ,Al F C0MMFr I A 02128122 ..se By S3cc aI Rcview Six Pion 1 ii[Y avy USS Cogburn Solar LLC Weld County, Colorado L _ Site Hydrology PRELIMINARY NOT FOR CONSTRUCTION DATE SHEET 02/28/2022 0.201 1/5/22, 6:25 AM Precipitation Frequency Data Server NOAA Atlas 14, Volume 8, Version 2 Location name: Greeley, Colorado, USA* Latitude: 40.4661°, Longitude: -104.6088° Elevation: 4683.1 ft** * source: ESRI Maps source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES Sanja Redcap Deborah Martin, Sandra Pavlovic, Ishani Roy, Michael St. Laurent, Carl Trypaluk, Dale Unruh, Michael Yekta, Geoffery Bonnin NOAA, National Weather Service, Silver Spring, Maryland PF tabular PF graphical I Maps & aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Average recurrence interval (years) Duration 1 2 5 I 10 1 25 [so 101 200 500 1000 5 -min I 0.243 (0.200-0.299) I 0.294 (0.241-0.362) 1 0.391 (0.319-0.482) 0.483 (0.391-0.599) 0.628 (0.495-0.832) 0.754 (0.574-1.01) 0.893 (0.650-1.23) 1.05 (0.723-1.48) 1.27 (0.835-1.85) 1.45 (0.920-2.13) 14-rainI 0.356 (0.293-0.438) 0.431 (0.353-0.530) 0.572 (0.467-0.706) 0.707 (0.573-0.877) 0.919 (0.725-1.22) 1.10 (0.841-1.48) 1.31 (0.952-1.80) 1.53 (1.06-2.17) 1.86 (1.22-2.71) 2.13 (1.35-3.12) 1 15 -min 0.435 (0.357-0.534) 0.526 (0.431-0.646) 0.698 (0.569-0.861) 0.862 (0.699-1.07) 1.12 (0.885-1.49) 1.35 (1.02-1.80)i 1.59 (1.16-2.19) 1.87 (1.29-2.64) 2.27 (1.49-3.30) 2.59 (1.64-3.80) 3 in 0.586 (0.481-0.720) 0.708 (0.580-0.870) 0.939 rr (0.766-1.16) 1.16 (0.941-1.44) 1.51 (1.19-2.01) 1.82 (1.38-2.43) 2.15 (1.57-2.96) 2.53 (1.75-3.58) 3.07 (2.02-4.48) 3.52 (2.23-5.16) r 64 -mm n 0.729 (0.599-0.896) 0.870 (0.713-1.07) 1.15 (0.937.-1.42) 1.42 (1.15-1.76) 1.87 (1.48-2.49) 2.26 (1.73-3.04) 2.71 (1.97-3.73) 3.93 (2.59-5.73) 4.53 (2.87-6.64) 2 -hr 0.873 (0.721-1.06) 1.03 (0.852-1.26) 1.36 (1.12-1.66) 1.69 (1.38-2.07) 2.22 (1.78-2.95) 2.71 (2.09-3.62) 3.26 (2.40-4.46) 3.87 (2.71-5.46) 4.78 (3.19-6.93) I 5.54 (3.55-8.04) 3 -hr 0.955 (0.793-1.16) 1.12 (0.928-1.36) 146 (1.21-1.78) 1.81 (1.49-2.22) 2.40 (1.94-3.18) 2.94 (2.28-3.91) 3.55 (2.63-4.84) 4.23 (2.98-5.94) 5.25 (3.52-7.58) F-6.11 , 6 -hr 1.09 (0.908-1.31) 1.29 (1.08-1.56) 1.70 (141-2.05) 2.10 (1.74-2.55) 2.75 (2.23-3.59) 3.33 (2.60e4.37) 3.97 (2.96-5.35) 4.69 (3.33-6.50) 5.75 (3.89-8.19) 6.62 (4.31-9.47) 1 hr 1.26 (1.07-1.51) 1.51 (1.27-1.81) 1.98 (1.66-2.37) 2.41 (2.01-2.90) 3.09 (2.50-3.95) 3.67 (2.874.74) 4.30 (3.23-5.71) 5.00 (3.57-6.83) 6.01 (4.09-8.44) 6.83 (4.49-9.66) 24 -hr 1.51 (1.28-1.78) 2.25 (1.90-2.67) 2.70 (2.26-3.22) 3.39 (2.77-4.29) 3.99 (3.15-5.09) 4.63 (3.51-6.08) 5.34 (3.85-7.21) 6.36 (4.38-8.84) 7.19 (4.77-10.1) 2-day1.74 (1.49-2.04) 2.57 (2.19-3.02) 3.05 (2.58-3.61) 3.77 (3.09-4.68) 5.01 (3.82-6.48) 5.70 (4.14-7.60) 6.68 (4.64-9.18) 7.47 (5.02-10.4) 3 -deb, 2.74 (2.34-3.21) 3.22 (2.74-3.79) 3.95 (3.25-4.88) 4.55 (3.64-5.70) 5.20 (3.99-6.69) 5.90 (4.31-7.82) 6.89 (4.82-9.41) 7.69 (5.19-10.6) 4 -day 2.03 (1.75-2.36) 2.34 (2.02-2.72) 2.89 (2.48-3.37) 3.38 (2.88-3.96) 4.11 (3.39-5.05) 4.72 (3.78-5.88) 5.37 I (4.14-6.88) I 6.07 (4.45-8.01) 7.06 (4.95-9.59) 7.85 (5.33-10.8) 7 -day 2.30 (2.00-2.66) 2.68 (232-3.09) 3.32 (2.86-3.84) 3.86 (3.31-4.50) 4.64 (3.84-5.62) 5.26 (4.2.3-6.47) 5.90 (4.57-7.46) 6.57 (4.85-8.56) 7.49 (5.28-10.0) 8.20 (5.61-11.2) 10 -day 2.54 (2.21-2.91) 2.97 (2.58-3.41) 3.68 (3.19-4.24) 4.27 (3.67-4.95) 5.09 (4.21-6.10) 5.72 (4.61-6.97) 6.36 (4.93-7.96) 7.01 (5.18-9.04) 7.87 (5.57-10.5) 8.52 (5.87-11.6) 24 -day. 3.26 (2.86-3.71) 3.77 (3.30-4.29) 4.59 (4.00-5.24) 5.25 (4.56-6.03) 6.15 (5.12-7.27) 6 82 (5.54-8.21) 7.49 (5.85-9.25) 8.14 (6.08-10.4) 8.99 (6.43-11.8) 9.62 (6.69-12.9) 30 -day 3.84 (3.38-4.35) 4.41 (3.88-5.00) 5.32 (4.66-6.04) 6.05 (5.27-6.91) 1 7.02 (5.87-8.24) 7.75 (6.32-9.25) 8.45 (6.64-10.4) 9.14 (6.86-11.6) 10.0 (7.21-13.1) 10/ (7.47-14.2) 45 -day 4.54 (4.02-5.11) 5.21 (4.60-5.87) 6.26 (5.51-7.08) 7.09 (6.21-8.06) 8.19 (6.88-9.55) 9.00 (7.38-10.7) 9.77 (7.72-11.9) 10.5 (7.93-13.2) 11.4 (8.27-14.8) 12.1 (8.53-16.0) 4 60 -day 5.11 (4.54-5.73) 5.88 (5.22-6.60) 7.08 (6.26-7.98) 11.8 (8.91-14.7) 12/ (9.24-16.4) , 13.4 (9.49-17.7) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top PF graphical https://hdsc.nws.noaa.govlhdsclpfds/pfds_printpage.html?lat-40.4661 &Ion=-104.6088&data=depth&units=english&series=pds 1/4 1/5/2276:25 AM Precipitation Frequency Data Server 14 12. i': Lel 0 PDS-based depth -duration -frequency (DDF) curves Latitude: 40_4661c Longitude: -104.0088°' 5 10 25 50 100 200 NOAA Atlas 14, Volume 8, Version .2 I th Duration m m-. P'� 113 113 113 IL.) I I7 rn rr Average recurrence interval (years) 13 13 1 j 13 L L L 2 o I I I I 0 0 L II 0 500 1000 Created (GMT) : Wed Jan 5 12:24:5S 2022 Back to Top Maps & aerials Small scale terrain gage recurrence interval (years) 1 2 55 10 25 50 100 200 500 1000 Duration 5-rrrr — -day 10-rfin — 3 -day 1 -mliln 4 -day rnln - 7 -day 60-mn 10 -day 2-11r — 20 -dad 3 -hr — 3O -day 6-11i 45 -clay 12 -hr — 6O -day 24 -hr https://hdsc.nws.noaa.govlhdsc/pfds/pfds_printpage.html?Iat=40.4661 &Ion=-104.6088&data=depth&units=english&series=pds 2/4 1/5/227 6:25 AM Precipitation Frequency Data Server PLEASANT VALLEY 3km err fri 2mi I _ Large scale terrain Large scale map Large scale aerial https://hdso.nws.noaa.govlhdsolpfds/pfds_printpage.html?Iat=40.4661 &Ion=-104.6088&data=depth&units=english&series=pds 314 115122, 6:25 AM Precipitation Frequency Data Server Back to Tog Fort Collins. 0. US Department of Commerce National Oceanic and Atmospheric Administration National Weather Service National Water Center 1325 East West Highway Silver Spring, MD 20910 Questions?: HDSC.Questions@noaa.gov Disclaimer https:llhdsc.nws.noaa.govlhdsclpfdslpfds_printpage.html?Iat=40.4661&Ion=-104.6088&data=depth&units=english&series=pds 414 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cogburn Solar Project DA -01 Existing 5 -Year I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = DA -01 Exist 22.12 2.00 C ing Acres A,B,C,orD II. Rainfall Information I (inch/hr) = C1* P1 l(C2 + Td)^C3 Design Storm Return Period, Tr = Cl = C2= C3= P1= 5 28.50 10.00 0.786 1.15 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.20 0.17 0.20 0.17 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND i,L,) Beenning Flow Dfret tio11 4 Cate hment Boundary NRCS Land Type Conveyance Heavy Meadow 2.5 Till age/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swalesl Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ftfft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0049 500 0.17 N/A 0.18 47.51 1 0.0049 840 2 3 4 5 Sum 1,340 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 0.90 2.43 0.90 5.00 0.35 40.00 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 87.51 17.44 87.51 3.37 9.12 3.37 cfs cfs cfs 2022-02-23 ud-rational-v1.02a.xls, 5 -year Existing 2/24/2022, 10:34 AM CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cogburn Solar Project DA -01 Proposed 5 -Year I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = DA -01 Prop 22.12 6.60 C II. Rainfall Information Design Storm Return Period, Tr = Cl = C2= C3= P1= osed Acres A,B,C,orD I (inch/hr) = C1* P1 l(C2 + Ted)^C3 5 28.50 10.00 0.786 1.15 years (input (input (input (input inches (input return period for design storm) the value of C1) the value of C2) the value of C3) one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.20 0.19 0.20 0.19 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND i,L,) Beenning Flow Dfret tio11 4 Cate hment Boundary NRCS Land Type Conveyance Heavy Meadow 2.5 Till age/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swalesl Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ftfft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0049 500 0.19 N/A 0.18 46.49 1 0.0049 840 2 3 4 5 Sum 1,340 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 0.78 2.43 0.78 3.30 0.23 60.61 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 107.10 17.44 107.10 3.26 10.20 3.26 cfs cfs cfs 2022-02-23 ud-rational-v1.02a.xls, 5 -year Proposed 2/24/2022, 10:34 AM CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cogburn Solar Project DA -01 Existing 10 -Year I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = DA -01 Exist 22.12 2.00 C II. Rainfall Information Design Storm Return Period, Tr = Cl = C2= C3= P1= ing Acres A,B,C,orD I (inch/hr) = C1* P1 l(C2 + Td)^C3 10 28.50 10.00 0.786 1.42 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.20 0.27 0.20 0.27 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND i,L,) Beenning Flow Dfret tio11 4 Cate hment Boundary NRCS Land Type Conveyance Heavy Meadow 2.5 Till age/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swalesl Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ftfft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0049 500 0.27 N/A 0.20 42.40 1 0.0049 840 2 3 4 5 Sum 1,340 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 1.15 3.00 1.15 5.00 0.35 40.00 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 82.40 17.44 82.40 6.89 17.89 6.89 cfs cfs cfs 2022-02-23 ud-rational-v1.02a.xls, 10 -Year Existing 2/24/2022, 10:35 AM CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cogburn Solar Project DA -01 Proposed 10 -Year I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = DA -01 Prop 22.12 6.60 C II. Rainfall Information Design Storm Return Period, Tr = Cl = C2= C3= P1= osed Acres A,B,C,orD I (inch/hr) = Cl * P1 l(C2 + Td)^C3 10 28.50 10.00 0.786 1.42 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.20 0.29 0.20 0.29 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND i,L,) Beenning Flow Dfret tio11 4 Cate hment Boundary NRCS Land Type Conveyance Heavy Meadow 2.5 Till age/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swalesl Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ftfft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0049 500 0.29 N/A 0.20 41.38 1 0.0049 840 2 3 4 5 Sum 1,340 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 0.99 3.00 0.99 3.30 0.23 60.61 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 101.99 17.44 101.99 6.36 19.22 6.36 cfs cfs cfs 2022-02-23 ud-rational-v1.02a.xls, 10 -Year Proposed 2/24/2022, 10:35 AM CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cogburn Solar Project DA -01 Existing 100 -Year I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = DA -01 Exist 22.12 2.00 C II. Rainfall Information Design Storm Return Period, Tr = Cl = C2= C3= P1= ing Acres A,B,C,orD I (inch/hr) = Cl * P1 l(C2 + Td)^C3 100 28.50 10.00 0.786 2.71 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.20 0.51 0.20 0.51 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND i,L,) Beenning Flow Dfret tio11 4 Cate hment Boundary NRCS Land Type Conveyance Heavy Meadow 2.5 Till age/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swalesl Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ftfft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0049 500 0.51 N/A 0.28 30.14 1 0.0049 840 2 3 4 5 Sum 1,340 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 2.46 5.72 2.46 5.00 0.35 40.00 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 70.14 17.44 70.14 27.78 64.51 27.78 cfs cfs cfs 2022-02-23 ud-rational-v1.02a.xls, 100 -Year Existing 2/24/2022, 10:35 AM CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cogburn Solar Project DA -01 Proposed 100 -Year I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = DA -01 Prop 22.12 6.60 C II. Rainfall Information Design Storm Return Period, Tr = Cl = C2= C3= P1= osed Acres A,B,C,orD I (inch/hr) = Cl * P1 l(C2 + Td)^C3 100 28.50 10.00 0.786 2.71 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.20 0.53 0.20 0.53 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND i,L,) Beenning Flow Dfret tio11 4 Cate hment Boundary NRCS Land Type Conveyance Heavy Meadow 2.5 Till age/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swalesl Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ftfft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0049 500 0.53 N/A 0.29 29.12 1 0.0049 840 2 3 4 5 Sum 1,340 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 2.07 5.72 2.07 3.30 0.23 60.61 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 89.73 17.44 89.73 24.31 67.04 24.31 cfs cfs cfs 2022-02-23 ud-rational-v1.02a.xls, 100 -Year Proposed 2/24/2022, 10:36 AM DETENTION BASIN STAGE -STORAGE TABLE BUILDER VHFD-Detention, Version 4.04 (February 2021) Project: Cogburn Solar Project Basin ID: DA -01 Basin I NORt VOLUME gun' won. -ZONE e fZtiMNL Z 1 }rIBNP f ff --AIX-YEAR 7.ONE ! Arlb a-• PERMAIIEN-- C141IfMrr: P«'1- Example Zone Configuration (Retention Pond} Watershed Information Selected BMP Type = Watershed Area = Watershed Length = Watershed Length to Centroid = Watershed Slope = Watershed Imperviousness = Percentage Hydrologic Soil Group A = Percentage Hydrologic Soil Group B = Percentage Hydrologic Soil Groups C/D = Target WQCV Drain Time = Location for 1 -hr Rainfall Depths = User Input EDB 22.12 1;340 650 0,005 6.60% 0.0% 0.0% 100.0% 40.0 [Still CL acres ft ft ft/ft percent percent percent percent hours After providing required inputs above including 1 -hour rainfall depths, click 'Run CUHP' to generate runoff hydrographs using the em bedded Colorado Urban Hydrograph Procedure. Water Quality Capture Volume (WQCV) = Excess Urban Runoff Volume (EURV) = 2-yr Runoff Volume (P1 = 0.87 in.) = 5-yr Runoff Volume (P1 = 1.15 in.) = 10-yr Runoff Volume (P1 = 1.42 in.) = 25-yr Runoff Volume (P1 = 137 in.) = 50-yr Runoff Volume (P1 = 2.26 in.) = 100-yr Runoff Volume (P1 = 2.71 in.) = 500-yr Runoff Volume (P1 = 3.93 in.) = Approxim ate 2-yr Detention Volume = Approxim ate 5-yr Detention Volume = Approxim ate 10-yr Detention Volume = Approxim ate 25-yr Detention Volume = Approxim ate 50-yr Detention Volume = Approxim ate 100-yr D etention Volume = Define Zones and Bash Geometry Zone 1 Volume (WQCV) = Zone 2 Volume (100 -year - Zone 1) = Select Zone 3 Storage Volume (Optional) = Total Detention Basin Volume = Initial Surcharge Volume (ISM) = Initial Surcharge Depth (ISD) = Total Available Detention Depth (Fluid) = Depth of Trickle Channel (H,r) = Slope of Trickle Channel (STD) _ Slopes of Main Basin Sides (Smaja) = Basin Length -to -Width Ratio (Rim) = Initial Surcharge Area (A} = Surcharge Volume Length (L} = Surcharge Volume Width (W} = Depth of Basin Floor (HFLoaR) _ Length of Basin Floor (Lain) = Width of Basin Floor (WFLoaR) _ Area of Basin Floor (Anna° = Volume of Basin Floor (Vain) = Depth of Main Basin (HMpj,l) _ Length of Main Basin (LMpj,l} _ Width of Main Basin (Wrwt4) = Area of Main Basin (Atiwn) _ Volume of Main Basin (VMpp,l) _ Calculated Total Basin Volume (Vraul) = 0.103 0.117 0.069 0.295 0.672 1.597 2.300 3.271 5.639 0.068 0.205 0.310 0.427 0.468 0.726 0.103 0.623 0.726 11 0.33 1.50 0.50 0.001 4 2 33 5.8 5.8 0.38 387.3 195.8 75,822 9,810 0.29 389.6 198.1 77,180 22,185 0.735 acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet ft3 ft ft ft ft/ft H:V ft2 ft ft ft ft ft ft2 ft3 ft ft ft Ft2 ft3 acre-feet Flat Slope C 0.005 ftlf Optional User Overrides 0.103 C.5- 1.15 1.4= 1.6 =.?6 2.71 3.93 acre-feet acre-feet inches irches rches irches irches inches rches Depth Incremenk = C.1C ft Stage - Storage Description Stage (ft} Optional Override Stage (ft) Length (ft) Width (ft) Area (III Optional Override Area (ft =; Area (acre) Volume (ft 3) Volume (ac -ft) Top of Nlicrop ool 0.00 5.8 5.8 33 0.001 15 0.33 5.6 5.8 33 0.001 11 C.CCG 0.40 5.8 5.8 33 0.001 13 0.000 0.50 5.8 5.8 33 0.001 17 0.000 0.60 5.8 5.8 33 0.001 20 0,00C t 0.70 5.8 5.8 33 0.001 23 0.001 0.80 5.8 5.8 33 0.001 27 0.001 0.90 76.1 40.8 3,101 0.071 109 0.002 1.00 176.5 90.8 16,017 0.368 981 0.023 1.10 276.9 140.8 38,974 0.895 3,647 0.084 Zone 1 (WQCV) 1.13 307.0 155.8 47,818 1.098 4,946 0.114 1,20 377.3 190.8 71,970 1.652 9,110 0.209 Floor 1.21 387.3 195.8 75,822 1.741 9,849 0.226 1.30 388.0 196.5 76,242 1.750 16,692 0.383 1.40 388.8 197,3 76,710 1.761 24,340 0.559 Zome 2 (100 -year) 1.50 389.6 198.1 77,180 1.772 32,034 0.735 1.60 390.4 198.9 77,651 1.783 39,776 0.913 1.70 391.2 199.7 78,123 1.793 47,564 1.092 1.80 392.0 200.5 78,596 1.804 55,400 1.272 1.90 392.8 201.3 79,071 1.815 63,284 1.453 2.00 393.6 202.1 79,547 1.826 71,214 1.635 2.1C 394.4 202.9 30,024 1.837 79,193 1.818 2.20 395.2 203.7 80,502 1.848 87,219 2.002 2..30 396.0 204.5 80,982 1.859 95,294 2.188 2.40 396.8 205.3 81,463 1.870 103,416 2.374 2.50 397.6 206.1 81,946 1.881 111,586 2.562 2..60 398.4 206.9 82,429 1.892 119,805 2.750 2.70 399.2 207.7 82,914 1.903 128,072 2.940 2.80 400.0 208.5 83,400 1.915 136,388 3.131 2.90 400.8 209.3 83,888 1.926 14;752 3.323 3.00 401.6 210.1 34,376 1.937 153,165 3.516 3.10 402.4 210.9 84,866 1.948 161,628 3.710 3.20 403.2 211.7 85,358 1.960 170,139 3.906 3.30 404.0 212.5 85,850 1.971 178,699 4.102 3.40 404.8 213.3 86,344 1.982 187,309 4.300 350 405.6 214.1 86,839 1.994 195,968 4.499 3.60 406.4 214.9 87,336 2.005 204,677 4.699 3.70 407.2 215.7 87,833 2.016 213,435 4.900 3.80 408.0 216.5 88,332 2.028 222,243 5.102 3.90 408.8 217.3 38,833 2.039 231,102 5.305 4.00 409.6 218.1 89,334 2.051 240,010 5.510 4.10 410.4 218.9 89,837 2.062 248,968 5.716 4.20 411.2 219.7 90,341 2.074 257,977 5.922 4..30 412.0 220.5 90,846 2.086 267,037 6.130 4.40 412.8 221.3 91,353 2.097 276,147 6.339 4.50 413.6 222.1 91,861 2.109 285,307 6.550 4.60 414.4 222.9 92,370 2.121 294,519 6.761 4.70 415.2 223.7 92,881 2.132 303,761 6.974 4.80 416.0 224.5 93,392 2.144 313,095 7.188 4.90 416.8 225.3 93,905 2.156 322,460 7.403 5.00 417.6 226.1 94,420 2.168 331,876 7.619 5.10 418.4 226.9 94,935 2.179 341,344 7.836 5.20 419.2 227.7 95,452 2.191 350,863 8.055 5.30 420.0 228.5 95,970 2.203 360,434 8.274 5.40 420.8 229.3 96,490 2.215 370,057 8.495 5.50 421.6 230.1 97,011 2.227 379,732 8.717 5.60 422.4 230.9 97,533 2.239 389,460 8.941 5.70 423.2 231.7 98,056 2.251 399,239 9.165 5.80 424.0 232.5 98,580 2.263 409,071 9.391 5.90 424.8 233.3 99,106 2.275 418,955 9.618 6.00 425.6 234.1 99,633 2.287 428,892 9.846 6.10 426.4 234.9 100,162 2.299 438,882 10.075 6,20 427.2 235.7 100,691 2.312 448,924 10.306 6.30 428.0 236.5 101,222 2.324 459,020 10.538 6.40 428.8 237.3 101,755 2.336 469,169 10.771 6.50 429.6 238.1 102,288 2.348 479,371 11.005 6.60 430.4 238.9 102,823 2.360 489,627 11.240 6.70 431.2 239.7 103,359 2.373 499,936 11.477 630 432.0 240.5 103,896 2.385 510,298 11.715 6.90 432.8 241.3 104,435 2.397 520,715 11.954 7.00 433.6 242.1 104,975 2.410 531,156 12.194 7.10 434,4 242.9 105,516 2.422 541,710 12.436 7.20 435.2 243.7 106,059 2.435 552,289 12.679 7.30 436.0 244.5 106,602 2.447 562,922 12.923 7.40 436.8 245.3 107,148 2.460 573,609 13.168 7.50 437.6 246.1 107,694 2.472 584,351 13.415 7..60 438.4 246.9 108,241 2.485 595,148 13.663 7.70 439.2 247.7 108,790 2.497 606,000 13.912 730 440.0 248.5 109,340 2.510 616,906 14.162 7.90 440.8 249.3 109,892 2.523 627,868 14.414 8.00 441.6 250.1 110,445 2.535 638,885 14.667 8.10 442.4 250.9 110,999 2.548 649,957 14.921 8,20 443.2 251.7 111,554 2.561 661,084 15.176 8.30 444.0 252.5 112,111 2.574 672,268 15.433 8.40 444.8 253.3 112,665 2.587 683,507 15.691 8.50 445.6 254.1 113,227 2.599 694,801 15.950 8.60 446.4 254,9 113,788 2.612 706,152 16211 8.70 447.2 =55.7 114,350 2.625 717,559 16.473 8.80 448.0 256.5 114,913 2.638 729,022 16.736 8.90 4483 257.3 115,477 2.651 740,542 17.000 9.00 449.6 258.1 116,042 2.664 752,118 17266 9.10 450.4 258.9 116,609 2.677 763,750 17.533 9.20 451.2 259.7 117,177 2.690 775,439 17.802 9.30 452.0 260.5 117,747 2.703 787,186 18.071 9.40 452.8 261.3 118,317 2.716 798,989 18.342 9..50 453.6 262.1 118,889 2.729 810,849 18.615 9.60 454.4 262.9 119,462 2.742 822,767 18.888 9.70 455.2 263.7 120,037 2.756 834,742 19.163 9.80 456.0 264.5 120,613 2.769 846,774 19.439 2022-02-23 MHFD-Detention_v4 04.Asm, Basin 212412022, 10:37 AM DETENTION BASIN STAGE -STORAGE TABLE BUILDER MHFD-Detention, Version 4.04 (February 2021) r 715 s C d J -E0 1288C0 _ i 1 m 3=5 SC600 23C 60400 __5 C 30200 0 C 0O 2.50 5 00 Stage (ft) — Length (ft) — W dth (ft) Area 750 10 OD ( sq.ft.) N Y '° m III a 2.730 2 DES _ 3SC C E55 C DOC 19.440 w E 3 o 14.580 9.720 - 4.860 0.000 0 CC 230 5.CC Stage (ft.) 7 SC 10 00 Area (acres) —VD urne Lac -ft' 2022-02-23 MI-IFD-Detention v4 04.xlsm, Basin 212412022, 10:37 AM DETENTION BASIN OUTLET STRUCTURE DESIGN MHFD-Detention, Version 4.04 (February 2021) Project: Cogburn Solar Project Basin ID: DA -01 Basin road VOLUME EIURVT WacV PERMANENT POOL ZONES ZONE 2 (ZONE I ZONE 4 AFIa2 ORIFICES Example Zone Configuration (Retention Pond) t 0G -V EAR ORIFICE User Input: Orifice at Underdrain Outlet (typically used to drain WQCV in a Filtration BMP) Underdrain Orifice Invert Depth = Underdrain Orifice Diameter = N/A N/A Zone 1 (WQCV) Zone 2 (100 -year) Zone 3 Estimated Stage (ft) Estimated Volume (ac -ft) Outlet Type 1.13 0.103 Orifice Plate 1.50 0.623 Weir&Pipe (Restrict) Total (all zones) ft (distance below the filtration media surface) inches 0.726 Underdrain Orifice Area = Underdrain Orifice Centroid = Calculated Parameters for Underdrain ft2 feet N/A N/A User Input: Orifice Plate with one or more orifices or Elliptical Slot Weir (typically used to drain WQCV and/or EURV in a sedimentation BMP) Invert of Lowest Orifice = Depth at top of Zone using Orifice Plate = Orifice Plate: Orifice Vertical Spacing = Orifice Plate: Orifice Area per Row = 0.00 1.10 N/A 0.47 ft (relative to basin bottom at Stage = 0 ft) ft (relative to basin bottom at Stage = 0 ft) inches sq. inches (diameter = 3/4 inch) User Input: Stage and Total Area of Each Orifice Row (numbered from lowest to highest) Stage of Orifice Centroid (ft) Orifice Area (sq. inches) Stage of Orifice Centroid (ft) Orifice Area (sq. inches) WQ Orifice Area per Row = Elliptical Half -Width = Elliptical Slot Centroid = Elliptical Slot Area = Calculated Parameters for Plate ft2 feet feet ft2 3.264E-0 3 N/A N/A N/A Row 1 (required) Row 2 (optional) Row 3 (optional) Row 4 (optional) Row 5 (optional) Row 6 (optional) Row 7 (optional) Row 8 (optional) 0.00 0.50 1.00 0.47 0.47 0.47 Row 9 (optional) Row 10 (optional) Row 11 (optional) Row 12 (optional) Row 13 (optional) Row 14 (optional) Row 15 (optional) Row 16 (optional) User Input: Vertical Orifice (Circular or Rectangular) Invert of Vertical Orifice = Depth at top of Zone using Vertical Orifice = Vertical Orifice Diameter = Not Selected Not Selected ft (relative to basin bottom at Stage = 0 ft) ft (relative to basin bottom at Stage = 0 ft) inches Vertical Orifice Area = Vertical Orifice Ceniroid = Calculated Parameters for Vertical Orific Not Selected Not Selected User Input: Overflow Weir (Dropbox with Flat or Sloped Grate and Outlet Pipe OR Rectangular/Trapezoidal Weir (and No Outlet Pipe) Overflow Weir Front Edge Height, Ho = Overflow Weir Front Edge Length = Overflow Weir Grate Slope = Horiz. Length of Weir Sides = Overflow Grate Type = Debris Clogging % = Zone 2 Weir Not Selected 1.15 2.00 0.00 N/A N/A N/A ft (relative to basin bottom at Stage = 0 ft) feet H:V feet User Input: Outlet Pipe w/ Flow Restriction Plate (Circular Orifice. Restrictor Plate. or Rectangular Orifice) Depth to Invert of Outlet Pipe = Outlet Pipe Diameter = Rest- ictor Plate Height Above Pipe Invert = Zone 2 Restrictor Not Selected 0.00 12.00 12.00 User Input: Emergency Spillway (Rectangular or Trapezoidal) Spillway Invert Stage= Spillway Crest Length = Spillway End Slopes = Freeboard above Max Water Surface = 2.50 10.00 4.00 1.00 Height of Grate Upper Edge, Ht = Overflow Weir Slope Length = Grate Open Area / 100-yr Orifice Area = Overflow Grate Open Area w/o Debris = Overflow Grate Open Area w/ Debris = ft (distance below basin bottom at Stage = 0 ft) inches inches ft (relative to basin bottom at Stage = 0 ft) feet H:V feet Calculated Parameters for Overflow Wei Zone 2 Weir Not Selected N/A N/A N/A N/A N/A Calculated Parameters for Outlet Pipe w/ Flow Restriction Plal Outlet Orifice Area = Outlet Orifice Ceniroid = Half -Central Angle of Restrictor Plate on Pipe = Spillway Design Flow Depth= Stage at Top of Freeboard = Basin Area at Top of Freeboard = Basin Volume at Top of Freeboard = Zone 2 Restrictor Not Selected 0.79 0.50 3.14 N/A Calculated Parameters for Spillway feet feet acres acre -ft 0.83 4.33 2.09 6.19 Routed Hydrograph Results Design Storm Return Period = One -Hour Rainfall Depth (in) = CUHP Runoff Volume (acre -ft) = Inflow Hydrograph Volume (acre -ft) = CUHP Predevelopment Peak Q (cfs) = OPTIONAL Override Predevelopment Peak Q (cfs) = Predevelopment Unit Peal: Flow, q (cfs/acre) _ Peak Inflow Q (cfs) = Peak Outflow Q (cfs) = Ratio Peak Outflow to Predevelopment Q = Structure Controlling Flow = Max Velocity through Grate 1 (fps) = Max Velocity through Grate 2 (fps) = Time to Drain 97% of Inflow Volume (hours) = Time to Drain 99% of Inflow Volume (hours) = Maximum Ponding Depth (ft) = Area at Maximum Pending Depth (acres) = Maximum Volume Stored (acre -ft) = The user can override the default CUHP hydrographs and runoff volumes by entering new values in the Inflow Hydrographs table (Columns W through AF). WQCV EURV 2 Year 5 Year 10 Year 25 Year 59 Year 109 Year N/A N/A 0.87 1.15 1.42 1.87 2.26 2.71 0.103 0.117 0.069 0.295 0.672 1.597 2.300 3.271 N/A N/A 0.069 0.295 0.672 1.597 2.300 3.271 N/A N/A 0.2 2.4 5.7 14.4 20.4 28.3 N/A N/A 3.4 6.9 27.8 N/A N/A 0.01 0.15 0.31 0.65 0.92 1.26 N/A N/A 0.7 3.0 6.3 15.1 21.0 28.9 0.0 0.0 0.0 0.2 0.8 2.8 4.6 5.2 N/A N/A N/A 0.1 0.1 0.2 0.2 0.2 Plate Plate Plate Overflow Weir 1 Overflow Weir 1 Overflow Weir 1 Outlet Plate 1 Outlet Plate 1 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 40 44 28 7 2 75 69 6 2 54 41 45 29 75 82 82 80 78 1.13 1.14 1.07 1.23 1.40 1.75 1.99 2.40 1.10 1.17 0.71 1.74 176 1.80 1.83 1.87 0.114 0.125 0.060 0.261 0.541 1.164 1.617 2.355 2022-02-23 MHFD-Detention_v4 04.xlsm. Outlet Structure 2/24/2022. 10:30 AM DETENTION BASIN OUTLET STRUCTURE DESIGN MHFD-Detention, Version 4.04 (February 2021) 60 500YR IN 500YR OUT 100YR IN 50 a a 100YR OUT 50YR IN _ = 50YR OUT 25YR IN 40 — 25YR OUT 10YR IN __a 10YR OUT SYR IN `�+ 30 5Y R OUT 2YRIN Q U. __- 2YROUT EURV IN EURV OUT 20 - WQCVIN . -�'•. WQCV OUT -' 10 ..', -tit is i .r _-�-___- - ___ - - lir t.. 0.1 1 TIME [hr] 10 3.5 —,500YR 100YR 3 - I50Y R �25YR 10YR 5YR 2.5 - 2YR EURV W QCV Ilk PONDING DEPTH [fi o f 1.n I -a 1.n h.l I I w I Atia:Illikkikish. Fr "r Harissilli".....ellilli ,0"liF__.. ------="=----=t-„.„..„..,- U -i 0.1 1 DRAIN TIME [hr] 10 100 250,000 User Area [ft^2j 120 Interpolated Area [ft^2j - Summary Area [ftA2] = Volume [ft^3] 200,000 - --•ft- •• Summary Volume [ft^3] - 100 Outflow [cfs] ..#.. Summary Outflow [cfs] - 80 r7 150,000 7 4- W 2 C 100,000 0 - 60 i- 0 c < w cc 50,000 _.= 40 0 20 0 0.00 , 1.00 2.00 3.00 4.00 5.00 6.00 PON DING DEPTH [ft] S -A -V -D Chart Axis Override minimum bound maximum bound X -aid s Left Y -Axis Right Y -Axis 2022-02-23 III H FD-Detention_a4 04.xlsm. Outlet Structure 2/24/2022, 10:30 AM DETENTION BASIN OUTLET STRUCTURE DESIGN Time Interval 5.00 n - in n Outflow Hydrograph Workbook Filename: Inflow Hxdrociraphs The user can override the calculated inflow hydrographs from this workbook with inflow hydrographs developed in a separate program. SOURCE CUHP CUHP CUHP V CUHP V CUHP V CUHP V VCUHPV V CUHP CUHP TIME WQCV [cfs] EURV [cfs] 2 Year [cfs] 5 Year [cfs] 10 Year [cfs] 25 Year [cfs] 50 Year [cfs] 100 Year [cfs] 500 Year [cfs] 0:00:00 0 0 0.00 0.00 0.00 0 [; 0 0.00 C C C 0.D C 0.00 0:05:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0:10:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0:15:00 0.00 0.00 0.00 0.01 0.01 0.01 0.02 0.02 0.04 0:20:00 0.00 0.00 0.02 0.04 0.13 0.04 0.08 0.18 0.55 0:25:00 0.00 0.00 0.25 0.55 2.34 0.49 1.49 3.01 8.67 0:30:00 0.00 0.00 0.51 2.08 4.98 6.85 10.58 14.40 26.65 0:35:00 0.00 0.00 0.63 2.82 6.05 1158 16.73 22.85 39.19 0:40:00 0.00 0.00 0.67 2.98 6.31 14.00 19.76 26.82 45.07 0:45:00 0.00 0.00 0.65 2.91 6.24 14.85 20.79 28.62 47.61 0:50:00 0.00 0.00 0.61 2.73 5.84 15 06 21.00 28.94 47.87 0:55:00 0.00 0.00 0.57 2.50 5.45 1- 3- 20.09 28.14 46.68 1:00:00 0.00 0.00 0.53 2.33 5.13 1-+ u5 19.20 27.42 4556 1:05:00 0.00 0.00 0 50 2.17 4.83 12.99 18.36 26.75 4452 1:10:00 0.00 0.00 0.46 2.02 4.53 12 09 17.23 25.15 42.08 1:15:00 0.00 0.00 0.43 1.86 4.28 1: .12 16.03 23.31 3938 1:20:00 0.00 0.00 0.40 1.72 4.02 10.24 14.82 21.47 36.49 1:25:00 0.00 0.00 0.37 1.60 3.73 9.44 13.69 19.74 3371 1:30:00 0.00 0.00 0.34 1.49 3.45 8.70 12.61 18.14 31.10 1:35:00 0.00 0.00 0.32 1.38 3.17 7.99 11.59 16.65 28.65 1:40:00 0.00 0.00 0.29 1.26 2.89 7.31 10.60 15.22 26.30 1:45:00 0.00 0.00 0.26 1.14 2.62 6.65 9.65 13.83 24.03 1:50:00 0.00 0.00 0.24 1.02 2.36 6.00 8.71 12 48 21.80 1:55:00 0.00 0.00 0.21 0.90 2.09 5.36 7.79 11.17 19.66 2:00:00 0.00 0.00 0.19 0.80 1.88 4.74 6.92 9.97 17.77 2:05:00 0.00 0.00 0.18 0.73 1.74 4.30 6.29 9.05 16.21 2:10:00 0.00 0.00 0.16 0.68 1.61 3.93 5.77 8.28 14.86 2:15:00 0.00 0.00 0.15 0.63 1.48 3.62 5.31 7.60 13.63 2:20:00 0.00 0.00 0.14 0.59 1.37 3.34 4.89 6.99 1251 2:25:00 0.00 0.00 0.13 0.54 1.26 3.08 4.50 6.42 11.47 2:30:00 0.00 0.00 0.12 0.50 1.15 2.84 4.13 5.88 1051 2:35:00 0 CO 0.00 0.11 0.45 1.05 2.60 3.78 5.39 9 60 2:40:00 0.00 0.00 0.10 0.41 0.95 2.37 3.45 4.92 8.76 2:45:00 0.00 0.00 0.09 0.37 0.85 2.15 3.13 4.47 7.94 2:50:00 0.00 0.00 0.08 0.33 0.76 1.93 2.81 4.02 7.14 2:55:00 0.00 0 CO 0.07 0.29 0.66 1.71 2.49 3.57 6.34 3:00:00 0.00 0 CO 0.06 0.25 0.57 1.50 2.18 3.12 5 55 3:05:00 0.00 0 CO 0.05 0.21 0.48 1.28 1.86 2.68 4 -7 3:10:00 0.00 0.00 0.04 0.17 0.39 1.06 1.55 2.23 3.99 3:15:00 0.00 0.00 0.03 0.13 0.30 0.85 1.24 1.79 3.21 3:20:00 0.00 0.00 0.02 0.09 0.20 0.63 0.93 1.35 2.44 3:25:00 0.00 0.00 0.01 0.05 0.13 0.42 0.63 0.93 1.75 3:30:00 0.00 0.00 0.01 0.03 0.09 0.26 0.41 0.63 1.26 3:35:00 0.00 0.00 0.01 0.02 0.07 0.17 0.28 0.44 0.93 3:40:00 0.00 0.00 0.01 0.02 0.06 0.11 0.20 0.30 0.69 3:45:00 0.00 0.00 0.00 0.01 0.04 0.08 0.14 0.20 0.51 3:50:00 0.00 0.00 0.00 0.01 0.03 0.05 0.10 0.13 0.37 3:55:00 0.00 0.00 0.00 0.01 0.03 0.03 0.06 0.08 0.26 4:00:00 0.00 0.00 0.00 0.01 0.02 0.02 0.04 0.05 0.18 4:05:00 0.00 0.00 0 00 0.00 0.01 0.01 0.03 0.03 0.13 4:10:00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.02 0.10 4:15:00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.08 4:20:00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.D 1 0.06 4:25:00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.D 1 0.05 4:30:00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.03 4:35:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 4:40:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 4:45:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 4:50:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4:55:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:00:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:05:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:10:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:15:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:20:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:25:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:30:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:35:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:40:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:45:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:50:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:55:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:00:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2022-02-23 MHFD-Detention_v4 04.xlsm. Outlet Structure 2/24/2022, 10:38 AM DETENTION BASIN OUTLET STRUCTURE DESIGN MHFD- Detention, Version 4%04 (February 2021) Su r» mar y Stage -Area -NM It] me -Discharge Retationsh ips The user can create a summary S -A -V -D by entering the desired stage increments and the remainder of the table will populate automatically. The user should graphically compare the summary S -A -V -D table to the full S -A -V -D table in the chart to confirm it captures all key transition points. Stage - Storag Description Stage [ft] [ft ] acres Vdu [ft 3] ac- Total Outflow [cis] For best results, include the stages of all grade slope changes (e.g. ISV and Floor) from the S -A -V table on Sheet 'Basin'. Also include the inverts of all outlets (e.g. vertical orifice, overflow grate, and spillway, where applicable). 2022-02-23 MHFD-Detention_v4 04.xlsm. Outlet Structure 2/24/2022. 10:38 AM 40° 78' 1" N 40° 77' 50" N 1 1 G 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part Map Scale: 1:2,570 if printed on A landscape (11" x 8.5") sheet. Metiers 0 35 70 0 100 200 140 Feet 400 600 210 Map projection: Web Mercator Corner coordinates: WG584 Edge tics: UM Zone 13N WG584 N 1 M1 4 C 3 40° 78' 1" N 40° 27 50" N USDA Natural Resources a Conservation Service Web Soil Survey National Cooperative Soil Survey 2123/2022 Page 1 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part MAP LEGEND Area of Interest (A0l0 Area of Interest (AOI) Soils Soil Rating Polygons A AID B BID C CID D Not rated or not available Soil Rating Lines pairso pairso co A A/D B B/D C C/D D • Not rated or not available Soil Rating Points ■ ■ ■ A A/D B • BID • ■ O C /D D Not rated or not available Water Features --�- Streams and Canals Transportation IIi ORO Rails Interstate Highways US Routes Major Roads Loca Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AD I were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 20, Aug 31, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 199 2018 —Aug 10, 2018 The orthophoto or other base map on which the soil lines were �mpiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. USDA Natural Resources a Conservation Service Web Soil Survey National Cooperative Soil Survey 2123/2022 Page 2 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 41 Nunn clay loam, percent slopes Q to 1 C 14.7 97.7% 51 Otero sandy loam, percent slopes 1 to 3 A 0.3 2.3% Totals for Area of Interest 15.0 100.0% Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, BID, and CID). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C.Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (AID, BID, or VD), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition USDA Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/23/2022 Page 3 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part Component Percent Cutoff: None Specified Tie -break Rule: Higher USDA Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/2312022 Page 4 of4 40° 78'1"N 40° 77' 57" N 104° 36' 44" W 532870 532910 nal Soil Map may not 532870 1040 36'44"W 532910 5332950 5'2954 532990 532990 Hydrologic Soil Group —Weld County, Colorado, Southern Part 533030 533430 Map Scale: 1:1,930 if printed on A landscape (11" x 8.5") sheet. Meters 0 25 50 0 50 100 10D Feet 200 300 150 533070 533070 Map p -lion : Web Mercator Corner coordinates: WG584 Edge tics: UM Zone 13N WG584 533110 533110 533150 533150 533194 533194 5332'M 5332.4 533274 533270 1040 36' 26" W rep 1 40° 78' 1" N 40° 77 57" N USDA Natural Resources a Conservation Service Web Soil Survey National Cooperative Soil Survey 2123/2022 Page 1 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part MAP LEGEND Area of Interest (A0l0 Area of Interest (AOI) Soils Soil Rating Polygons A AID B BID C CID D Not rated or not available Soil Rating Lines pairso pairso co A A/D B B/D C C/D D • Not rated or not available Soil Rating Points ■ ■ ■ A A/D B • BID • ■ O C /D D Not rated or not available Water Features --�- Streams and Canals Transportation IIi ORO Rails Interstate Highways US Routes Major Roads Loca Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AD I were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 20, Aug 31, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 199 2018 —Aug 10, 2018 The orthophoto or other base map on which the soil lines were �mpiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. USDA Natural Resources a Conservation Service Web Soil Survey National Cooperative Soil Survey 2123/2022 Page 2 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 41 Nunn clay loam, percent slopes 0 to 1 C 7.1 100.0% Totals for Area of Interest 7.1 100.0% Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (AID, BID, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (AID, BID, or CID), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified USDA Natural Resources conservation service Web Soil Survey National Cooperative Soil Survey 2123/2022 Page 3 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part Tie -break Rule: Higher USDA Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 2/2312022 Page 4 of4 u 100 N 6th Street, Suite 410B 612.266.2230 Minneapolis, MN 55403 www.us-solar.com TRAFFIC NARRATIVE / STATEMENT OF TRANSPORTA ION CONSTRUCTION IMPACTS Preliminary Traffic Impact Analysis — To be submitted with every Application A preliminary traffic impact analysis shall be submitted with the project application for the application to be considered complete. The intent of the analysis is to determine the project's cumulative development impacts, appropriate project mitigation and improvements necessary to offset a specific project's impacts. Traffic Narrative: I. Describe how many roundtrips/day are expected for each vehicle type: Passenger cars/Pickups, Tandem Trucks, semi-TrucklTrailer/RV (Roundtrip = One (1) trip in and One (1) trip out of site). We expect the following total quantities of round trips during the construction period, which is about 5 months in length. • Approximately 20 semi -truck deliveries for racking material Approximately 10 semi -truck deliveries for all solar modules Approximately 10 semi -truck deliveries for inverters, switchgear, and transformer • Approximately 15 semi -truck deliveries for Balance of Plant equipment We expect no more than 4 deliveries on any one day, and most deliveries will occur within a couple days during the construction period. After construction, there will be approximately 2-3 passenger pickup truck roundtrips per quarter for routine SEF maintenance and vegetation maintenance. 2. Describe the expected travel routes or haul routes for site traffic. A formal haul route has not yet been set, but we expect most traffic will enter the site via Weld County Rd 49 North and/or County Rd 47 North, to County Rd 66 East. Traffic may also enter the site via US -85 North to County Rd 66 East. 3. Describe the travel distribution along the routes (e.g. 50% of traffic will come from the north, 20% from the south, 30% from the east, etc.). A formal haul route has not yet been set, but we expect that nearly 100%4 of the traffic will come from the south and west. Nearly all traffic will access the site from the west on County Rd 66. 4. Describe the time of day that you expect the highest traffic volumes. We expect that most site visits will be conducted in business hours, from approximately 8:00 am MST to5:oo pm MST. We do not anticipate a Traffic Impact Study is required for the Proposed SEF. u 100 N 6th Street, Suite 410B 612.266.2230 Minneapolis, MN 55403 www.us-solar.com Statement of Transportation Construction Impacts: The statement shall be based on impacts to transportation during construction phase and include the following: 1. Haul route map showing a minimum of one (1) mile traveled road and must include a connection to a paved, publicly -maintained road. Please see the following page for the haul route map for USS Cogburn Solar LLC. 2. Agreement to mitigate construction traffic impacts to the area surrounding the proposed SEE USS Cogburn Solar LLC agrees to mitigate construction traffic impacts to the area surrounding the proposed SEF. The Proposed SEF's traffic impact will be negligible, and no impacts are expected. 3. Describe what impacts construction of the project will have upon transportation patterns in the area intended to be served or affected by the proposal. Construction of the Proposed SEF will have a negligible impact on transportation patterns in the vicinity of the proposal. The total quantities of round trips are outlined above, and we expect no more than 4 deliveries on any one day. Hence, there will be no impacts to transportation patterns in the area during construction. 4. Describe the potential construction impact on roads within the County. Deliveries to the construction site of the Proposed SEF will have no impact on roads within the County. The Proposed SEF does not anticipate any impact will be created. 5. Identify improvements required to any roads within the County in order to serve the project adequately. No improvements are required to any road within the County in order to serve the project adequately. !7vehicies from Denver Metropolitan Area will likely enter the site via Co. Rd. 47 N to Co. Rd 66 E 100 N 6th Street, Suite 410B 612.260.2230 Minneapolis, MN 55403 www.us-solar.com A description of those methods by which dust emanating from the proposed SEF and the weeds growing upon the impacted area will be mitigated. USS Cogburn Solar LLC will continually employ practices to minimize and control any dust emanating from the Proposed SEF. The Proposed SEF will implement the following procedures to fulfill this goal: 1. Prior to construction, a temporary cover crop will be planted onsite to minimize erosion and dust creation throughout construction. a. Common cover crop species include hay, oats, or other grass or crop that can readily establish on arid land that has proven to reduce erosion and dust emanation. b. USS Cogburn Solar LLC does not anticipate that construction processes will produce significant dust. The cover crop will further reduce any dust production. 2. Following construction, the project footprint will be vegetated with a native pollinator - friendly habitat mix, including species such as Green Needlegrass, Sideoats Grama, Western Wheatgrass, Buffalo Grass, Blue Grama, and others. a. The ground beneath the modules and between rows of the Proposed SEF will be transformed into a diverse mix of pollinator -friendly, low-lying, deep-rooted plants. i. The native habitat mix is a low -maintenance, multi -benefit groundcover layer that will minimize erosion, dust creation, and stormwater runoff. Additionally, the native mix will stabilize the Property's soils throughout the life of the Proposed SEF. b. USS Cogburn Solar LLC continues to work closely with Natural Resource Services, Inc, to curate a mix of plants that is well suited to the characteristics of the land that it will be planted on. c. USS Cogburn Solar LLC will control for noxious weeds throughout the life of the Solar Garden through mowing the native habitat regularly and treating any noxious weeds that arise. 100 N 6th Street, Suite 410B 612.260.2230 Minneapolis, MN 55403 www.us-solar.com The Proposed SEF consists of many recyclable materials, including glass, semiconductor material, steel, aluminum, copper, and plastics. When the Proposed SEF reaches the end of its operational life, the component parts will be dismantled and recycled as described below. US Solar's lease contract with the property owner requires us to decommission and restore the site at our expense. The decommissioning plan would commence at the end of the lease term or in the event of twelve (12) months of non -operation. At the time of decommissioning, the Proposed SEF components will be dismantled and removed using minimal impact construction equipment, and materials will be safely recycled or disposed. All non -utility owned equipment, conduits, structures, fencing, and foundations to a depth of at least three (3) feet below grade shall be removed. USS Cogburn Solar LLC will be responsible for all the decommissioning costs. REMOVAL PROCESS The decommissioning of the Proposed SEF proceeds in the following reverse order of the installation: 1. The solar system will be disconnected from the utility power grid 2. PV modules will be disconnected and removed 3. Electrical cables will be removed and recycled off -site 4. PV module racking will be removed and recycled off -site 5. PV module support posts will be removed and recycled off -site 6. Electrical devices, including transformers and inverters, will be removed and recycled off -site 7. Concrete pads will be removed and recycled off -site 8. Fencing will be removed and recycled off -site 9. Reclaim soils in the access driveway and equipment pad areas by removing imported aggregate material and concrete foundations; replace with soils as needed The Proposed SEF site may be converted to other uses in accordance with applicable land use regulationsat the time of decommissioning. There are no permanent changes to the site, and it will be returned in terrific condition. This is one of the many great things about community solar gardens - if desired, the site can return to productive farmland after the system is removed. DECOMMISSIONING CONSIDERATIONS We ask that Weld County take note of 3 important considerations: 1) a Proposed SEF is not a public nuisance, 2) the resale and recycle value are expected to exceed the cost of decommissioning, and 3) Weld County residents and taxpayers are not at risk. 1) Our modules do not contain hazardous materials and the Proposed SEF is not connected to governmentutilities (water, sewer, etc.). Additionally, almost all the land is permanent vegetation which improves erosioncontrol, soil quality, and water quality. For these reasons, the Proposed SEF, whether operational or non- operational, is not a public nuisance threat that would require government involvement in decommissioning or removal of the Proposed SEF. Compare this to an abandoned home, barn, etc. that may regularly include hazardous materials and/or become a public nuisance. 2) Upon the end of the Proposed SEF's life, the component parts may be resold and recycled. The aggregate value of the equipment is expected to exceed the cost of decommissioning and removal. Solar modules, for example, have power output warranties guaranteeing a minimum power output in Year 25 of at least 80% of Year 1. Since the value of solar panels is measured by their production of watts and the value of electricity, it is easy to calculate expected resale value. Even using extremely conservative assumptions, the value of the solar modules alone greatly exceeds the cost of decommissioning. This does not factor in the recycle value of other raw materials like steel, copper, etc. So, decommissioning is seen as a process that results in a net profit, incentivizing the Proposed SEF owner to do it. 100 N 6th Street, Suite 410B 612.260.2230 Minneapolis, MN 55403 www.us-solar.com 3) In the extremely unlikely, "worst -case" scenario where (1) the Proposed SEF owner fails to decommissionand neither our lender nor any power generation entities want the assets, and then (2) the landowner fails to decommission the Proposed SEF (which the landowner would have the right to do under the Property lease), and then (3) the decommissioning financial bond was insufficient to decommission the Proposed SEF, Weld County would have its standard police powers to enforce decommissioning. If that process ultimately resulted in Weld County gaining ownership of the property, Weld County could sell the parcel which would absolutely exceed the decommissioning cost. DECOMMISSIONING FINANCIAL SURETIES Despite the considerations of 1) the Proposed SEF is not a public nuisance, 2) the resale and recycle value is expected to exceed the cost of decommissioning, and 3) the Weld County and taxpayers are not at risk, we propose implementing an irrevocable bond in an amount sufficient to fund the estimated decommissioning/reclamation costs as required by Weld County Code Sec. 23-4-1030. This financial surety provides an extra layer of security that the Proposed SEF site will be returned to the appropriate condition at the end of the Solar Garden's useful life or earlier, should the Proposed SEF cease operations for a twelve-month period. The landowner will be provided a copy of the document, thereby establishing the obligation before construction commences. The bond will be in the amount of $95,941 based on Table 1 below. The estimated costs provided in this table are based on the New York State Energy Research and Development (NYSERDA) guidance document entitled "Decommissioning Solar Panels". The cost estimate will be updated every five (5) years from the establishment and submittal of the Security. Table 1: Estimated Decommissioning Costs for Cogburn Solar Project Remove Rack Wiring Remove Panels Dismantle Racks Remove Electrical Equipment Breakup / Remove Concrete Pads Remove Racks Remove Cable Remove Ground Screws and Power Poles Remove Fence Grading Seed Disturbed Areas Truck to Recycle Center $3,744 $3,744 $18,840 $2,832 $2,256 $11,904 $9,936 $21,120 $7,560 $6,105 $800 $7,100 TOTAL: $95,941 u 100 N 6th Street, Suite 410B 612.266.2230 Minneapolis, MN 55403 www.us-solar.com DEVELOPMENT STANPP creTGnnGu 1. Height limitation. Ground -mounted solar collectors shall not exceed twenty-five (25) feet in height, measured from the highest grade below each solar panel to the highest extent of the solar panel rotation. The Ground -mounted solar collectors will be an average of six (6) to eight (8) feet in height during normal daily operations. They will not exceed twenty-five (25) feet under any circumstances. 2. Glare. Concentrated solar glare from solar collectors shall not be directed toward or onto nearby properties or roadways at any time of the day. The solar collectors do not create significant glare. As such, they will not direct concentrated solar glare towards or onto nearby properties or roadways at any time of day. 3. Setbacks. The improved area shall conform to the setback requirements of the underlying zone. Additionally, the improved area must be at least five hundred (500) feet from existing residential buildings and residential lots of a platted subdivision or planned unit development. The residential setback requirement may be reduced if appropriate screening through landscape or an opaque fence is installed, or upon submittal to Weld County of a waiver or informed consent signed by the residence owner agreeing to the lesser setback. If landscaping or opaque fencing is substituted for setback, a landscaping plan or fencing plan shall first be submitted to and approved by the Department of Planning Services. The Proposed SEF conforms with the setback requirements of the underlying zone. USS Cogburn Solar LLC will work with residents within a residential lot of a planned subdivision or planned unit development that are located within 500' of the proposed SEF to discuss the project and receive a signature on a waiver or informed consent agreeing to a lesser setback without screening. If we are unable to secure waivers for all neighbors within this region, we will propose installing appropriate screening as described in the Landscape Plan and/or Fencing Plan. 4. Dust mitigation. The operators of the 5 ACRE SEF shall continuously employ the practices for control of fugitive dust detailed in their dust mitigation plan submitted as required by Subsection B.2., above. The Proposed SEF will continually employ practices for control of fugitive dust. Prior to construction, a temporary cover crop will be planted onsite to minimize erosion and dust creation throughout construction. Following construction, the project footprint will be vegetated with a native habitat mix that will minimize erosion and dust creation and stabilize the soils throughout the life of the Proposed SEF. 5. Underground cables. All electrical cables on the improved area shall be buried, except for direct current string wires that connect between solar collectors, direct current collection circuits between rows of solar arrays that are no more than four (4) feet above grade crossings, substations, switchyards, and circuit voltages greater than 34.5 kilovolts (where necessary). The Proposed SEF will meet all wiring requirements as outlined above. All electrical cables will be buried except for those described above. 100 N 6th Street, Suite 410B 612.266.2230 Minneapolis, MN 55403 www.us-solar.com 6. Fencing. The 5 ACRE SEF shall be enclosed with a security fence as approved pursuant to a fencing plan submitted to the Department of Planning Services. Appropriate signage shall be placed upon such fencing that warns the public of the high voltage therein. The Proposed SEF will be enclosed with a farm -field style fence that is made with page wire and wooden posts. The farm field style fencing is approximately eight (8) feet in height and meets National Electric Code requirements. Farm field style fencing blends in with the existing community and land use. The farm field style fencing is illustrated in the photo below: USS Cogburn Solar LLC will submit a fencing plan to the Department of Planning Services. Appropriate signage will be placed upon such fencing that warns the public of the high voltage therein. 7. Stormwater management. The Operator of the 5 ACRE SEF shall submit a drainage report to comply with required Storm Drainage Criteria pursuant to Chapter 8, Article XI of this Code. Additional requirements for Municipal Separate Storm Sewer System S4) areas may be applicable pursuant to Chapter 8, Article IX of this Code. Ground -mounted solar collector systems shall be exempt from impervious surface calculations if the soil under the collectors is designated hydrologic A or B soil groups by the Natural Resources Conservation Service (NRCS). Please refer to Drainage Report for the proposed drainage and stormwater management plan for the Proposed SEF. 8. Access permit. Prior to construction of the 5 ACRE SEF, the applicant shall apply for and obtain an approved Access Permit from the Weld County Department of Public Works, pursuant to the provisions of Article XIV of Chapter 8 of this Code. USS Cogburn Solar LLC will apply for and obtain an approved Access Permit from the Weld County Department of Public Works prior to constructing the Proposed SEE. 9. Existing irrigation systems. The nature and location or expansion of the 5 ACRE SEF must not unreasonably interfere with any irrigation systems on or adjacent to the solar facility. The nature and location or expansion of the Proposed SEF will not interfere with any irrigation systems on or adjacent to the solar facility. 100 N 6th Street, Suite 410B 612.260.2230 Minneapolis, MN 55403 www.us-solar.com The Interconnection Agreement cover page for USS Cogburn Solar LLC is attached below. The full Interconnection Agreement is available upon request. Application Colorado Clear form Small Generator Interconnection Agreement Xcel Energy® Appllcatlon ID: SRC083597 This Small Generator Interconnection Agreement ("Agreement") is entered Into by and between Public Service Company of Colorado, d/b/a Xcel Energy, a Colorado corporation, having a mailing address of P.0 Box 840, Denver, Colorado, 80201, hereinafter referred to as"Public Service" and USS Cogburn Solar LLC having a mailing address of 100ENE6thESt.ESuiteE410B,EMinneapolisEMNE55403 herein after referred to as "Customer." The Customer and Public Service are sometimes also referred to in tills Agreement jointly as "Parties" or Individually as "Party." I. Scope and purpose A) Establishment of Point of Common Coupling. This Agreement is intended to provide for theCustomer to interconnect and operate a Generation System with a total Nameplate Capacity of greater than 10 kW AC and 10 MWs AC or less in parallel with the Public Service electric dlstributlon system at 23581ECountyERoadE66,EGreeleyECOE80631 as more specifically identified in Exhibit C and shown In the Exhibit A one -line diagram. B) This Agreement contains the terms and condition under which the Customer may Interconnect the Generation System to the Public Service electric dlstributlon system and the facilities required by the Customer for such interconnection. C) This Agreement does not authorize the Customer to export power or constitute an agreement to purchase or wheel the Customer's power. Other services that the Customer may require from Public Service, or others, may be covered under separate agreements or the Public Service Electric Tariffs, or both. D) This Agreement does not cover FERC jurisdictional generating system installations. E) The Technical Requirements for interconnection are set forth in a separate Technical Requirements document, entitled "Safety, Interference and Interconnection Guldellnes for Cogenerators, Small Power Producers, and Customer -Owned Generation," dated March 26, 2010, a copy of which has been made available to the Customer and the receipt of which Customer hereby acknowledges. The Technical Requirements, as may be modified from time to time, are hereby incorporated and made part of tills Agreement by tills reference. II. Definitions A) "Agreement' — Small Generator Interconnection Agreement B) "Area EPS"—an electric power system (EPS) that serves Local EPSs. Note: Typically, an Area EPS has primary access to public rights -of -way, priority crossing of property boundaries, etc. C) "Commission" —the Public Utilities Commission of the State of Colorado D) "Customer" —the party or parties that will own/operate the Generation System and shall be responsible for meeting the requirements of this Agreement. E) "Dedicated Facilities" —the equipment that is Installed due to the interconnection of the Generation System and not required to serve other Public Service customers, as more specifically described on Exhibit B attached hereto and made a part hereof. F) "Electric Tariffs" —Public Service's electric tariffs as in effect and on file with the Commission from time to time. G) "EPS" (Electric Power System) —facilities that deliver electric power to a load. Note: This may Include generation units. H) "Extended Parallel" —the Generation System is designed to remain connected with Public Service for an extended period, see the Technical Requirements document for specific time thresholds. I) "Generation" — any device producing electrical energy, i.e., rotating generators driven bywind, steam turbines, internal combustion engines, hydraulic turbines, solar, fuel cells, etc.; or any other electric producing device, Including energy storage technologies. J) "Generation Interconnection Coordinator" —the person or persons designated by Public Service to provide a single point of coordination with the Applicant for the generation interconnection process. K) "Generation System" —the interconnected generator(s), controls, relays, switches, breakers, transformers, inverters, and associated wiring and cables, up to the Point of Common Coupling. L) "Local EPS"—an electric power system (EPS) contained entirely within a single premise or group of premises. M)"Nameplate Capacity" —the total AC nameplate capacity rating of all the Generation included In the Generation System. For tills definition, the "standby" and/or maximum rated kW capacity on the nameplate shall be used. N) "Point of Common Coupling" —the point where the Local EPS is connected to Public Service, as shown on Exhibit A hereto. 0) "Point of Delivery" — the point where the energy changes possession from one party to the other. Typically tills will be where the metering is Installed but It is not required that the Point of Delivery is the same as where the energy is metered. P) "Public Service Operator" —the distribution dispatch personnel or group that operates the Public Service Area EPS. 0) "Technical Requirements" —standards and requirements set forth In the document entitled "Safety, Interference and Interconnection Guldellnes for Cogenerators, Small Power Producers, and Customer -Owned Generation" (March 26, 2010), as may be modified from time to time. Page 1 of 11 21-02-503 SRC Generator Interconnection Agreement Colorado the Parties. Each Party receiving Confidential Information shall hold such information in confidence and shall not disclose it to any third party nor to the public without the prior written authorization from the Party provlding that information, except to fulfill obligations under agreements between the Parties, or to fulfill legal or regulatory requirements. A. Each Party shall employ at least the same standard of care to protect Confidential Information obtained from the other Party as it employs to protect its own Confidential Information. B. Each Party is entitled to equitable relief, by injunction or otherwise, to enforce its rights under this provision to prevent the release of Confidential Information without bond or proof of damages, and may seek other remedies available at law or in equity for breach of this provision. (3) Notwithstanding anything in this article to the contrary, if the Commission, during the course of an investigation or otherwise, requests information from one of the Partles that is otherwise required to be maintained In confidence, the Party shall provide the requested information to the Commission, within the time provided for In the request for information. In provlding the lnformatlon to the Commisslon, the Party may request that the information be treated as confidential and non-public by the Commission and that the Information be withheld from public disclosure. Partles are prohibited from notifying the other Party prior to the release of the Confidential lnformatlon to the Commisslon. The Party shall notify the other Party when It is notified by the Commission that a request to release Confidential Information has been received by the Commission, at which time either of the Parties may respond before such information would be made public. Customer: By: Name: Reed Richerson I) No warranties By undertaking the performance of any of its responsibilities under the terms of this Agreement, Including, without Ilmitation, any inspection, acceptance or non -rejection, Public Service does not give and hereby disclaims any warranty, expressed or implied, as to the adequacy, safety, or other characteristics of any structures, equipment, wires, appliances, or devices owned, installed, or maintained by the Customer or leased by the Customer from third parties, Including without Ilmitation the Generation System and any structures, equipment, wires, appliances, or devices appurtenant thereto. J) No partnership This Agreement shall not be interpreted or construed to create an association, joint venture, agency relationship, or partnership between the Parties or to Impose any partnership obligation or partnership liability upon either Party. Neither Party shall have any right, power, or authority to enter into any agreement or undertaking for, or act on behalf of, or to act as or be an agent or representative of, or to otherwise bind, the other Party. IN WITNESS WHEREOF, the Parties hereto have caused three originals of tills Agreement to be executed by their duly authorized representatives. This Agreement is effective as of the last date set forth below. Title: Vice President Date: March 25, 2022 Public Service Company of Colorado By: Name: Beth Chacon Title: Director, Grid Strategy Integration and Innovation Date: Page 6 of 11 21-02-503 4795017 01/19/2022 10:23 AM Total Pages: 9 Rec Fee: $53.00 Carly Koppes - Clerk and Recorder, Weld County , CO (Top 3 inches Reserved for Recording Data) This Instrument Drafted By and When Recorded, Return To: Bruce A. Bedwell, Esq. United States Solar Corporation 100 N 6th St, Suite 410E Minneapolis, MN 55403 612.260.2230 MEMORANDUM OF LEASE AND SOLAR EASEMENT THIS MEMORANDUM OF OPTION TO LEASE, LEASE AND SOLAR EASEMENT (this "Memorandum"), dated as of k,ak,i LI , 2020 (the "Effective Date"), is made by and between, David W. Cogburn, a single person, whose address is 25394 County Road 59, Kersey, CO 80644 ("Lessor") and US SOLAR DEVELOPMENT LLC, a Delaware limited liability company, whose address is 100 N 6th St., Suite 4108, Minneapolis, MN 55403 ("Lessee"). A. Lessor is the owner of real property located in Weld County, Colorado, that is legally described in Exhibit A (the "Lessor Property"). B. Lessor and Lessee have entered into that certain Option to Lease, Lease and Solar Easement (the "Lease"), having an effective date of : i k.{. , 2020, whereby Lessor leases to Lessee and Lessee leases from Lessor a portion of the Lessor Property (the "Premises") described in Exhibit A and whereby Lessor grants to Lessee certain easements described in Exhibit A and Exhibit B, in each case for the purposes of the Facility (as defined below). C. Lessor and Lessee wish to give record notice of the existence of the Lease. 4795017 01/19/2022 10:23 AM Page 2 of 9 D. This Lease is exempt from Colorado real estate transfer taxes pursuant to Colorado Revised Statute §§ 39-13-102 and 39-13-104. NOW THEREFORE, in consideration sum of One Dollar ($1.00), the parties agree as follows: 1. PURPOSE OF LEASE. THE LEASE IS SOLELY FOR SOLAR PHOTOVOLTAIC ENERGY GENERATION AND RELATED PURPOSES, AND THROUGHOUT THE TERM OF THE LEASE, LESSEE SHALL HAVE THE SOLE AND EXCLUSIVE RIGHT TO USE THE LESSOR PROPERTY FOR SUCH PURPOSES. FOR PURPOSES OF THE LEASE, PHOTOVOLTAIC ENERGY GENERATION PURPOSES MEANS: (I) MONITORING, TESTING AND ASSESSING THE LESSOR PROPERTY FOR SOLAR PHOTOVOLTAIC ENERGY GENERATION, AND (II) DEVELOPING, CONSTRUCTING, INSTALLING, OPERATING, MAINTAINING, REPAIRING, AND REPLACING PHOTOVOLTAIC ELECTRIC ENERGY GENERATING EQUIPMENT, SUPPORTING STRUCTURES AND BALLASTS, INVERTERS, ELECTRICAL STORAGE AND TRANSFORMERS, FIXTURES, ELECTRIC DISTRIBUTION LINES, COMMUNICATION LINES, METERING EQUIPMENT, PERIMETER FENCING, INTERCONNECTION FACILITIES AND RELATED FACILITIES AND EQUIPMENT (COLLECTIVELY, THE "FACILITY") ON THE LESSOR PROPERTY. ANY IMPROVEMENTS, FIXTURES OR STRUCTURES THAT ARE NOT A PART OF THE FACILITY SHALL NOT BE INSTALLED ON THE LESSOR PROPERTY WITHOUT THE EXPRESS WRITTEN CONSENT OF LESSOR. 2. COMMERCIAL OPERATION DATE: TERM; RENEWAL TERMS. THE TERM OF THE LEASE ("TERM") SHALL COMMENCE UPON THE EFFECTIVE DATE AND CONTINUE UNTIL 11:59 PM ON THE TWENTIETH (20TH) ANNIVERSARY OF THE COMMERCIAL OPERATION DATE. THE "COMMERCIAL OPERATION DATE" SHALL BE THE FIRST DAY OF THE FIRST FULL MONTH AFTER THE FACILITY COMMENCES COMMERCIAL PRODUCTION AND SALE OF ELECTRICITY ON THE LESSOR PROPERTY UNDER ANY CONTRACT OR AGREEMENT OR OTHER ARRANGEMENT PURSUANT TO WHICH LESSEE SELLS THE ELECTRICITY AND RELATED ENVIRONMENTAL ATTRIBUTES (AS DEFINED IN THE LEASE) TO ANY PURCHASER THEREOF. LESSEE HAS OPTIONS TO EXTEND THE INITIAL TERM OF THE LEASE FOR FOUR ADDITIONAL FIVE (5) YEAR TERMS COMMENCING IMMEDIATELY ON THE DAY THAT THE TERM WOULD OTHERWISE EXPIRE. 3. SOLAR EASEMENT. THE LEASE GRANTS TO LESSEE, FOR THE TERM OF THE LEASE, AN EXCLUSIVE SOLAR EASEMENT TO USE ALL SUNLIGHT WHICH NATURALLY ARRIVES AT THE PREMISES, INCLUDING AN EXCLUSIVE EASEMENT PROHIBITING ANY OBSTRUCTION TO THE FREE FLOW OF SUNLIGHT TO THE PREMISES THROUGHOUT THE ENTIRE AREA OF THE LESSOR PROPERTY DESCRIBED ON EXHIBIT B OF THE LEASE (THE "EASEMENT PREMISES"), WHICH SHALL CONSIST HORIZONTALLY THREE HUNDRED AND SIXTY DEGREES (360°) FROM ANY POINT WHERE ANY PHOTOVOLTAIC GENERATING FACILITY IS OR MAY BE LOCATED AT ANY TIME FROM TIME TO TIME (EACH SUCH LOCATION REFERRED TO AS A "SOLAR SITE") AND FOR A DISTANCE FROM EACH SOLAR SITE TO THE BOUNDARIES OF THE EASEMENT PREMISES, TOGETHER VERTICALLY THROUGH ALL SPACE LOCATED ABOVE THE SURFACE OF THE EASEMENT PREMISES, THAT IS, ONE HUNDRED EIGHTY DEGREES (180°) OR SUCH GREATER NUMBER OR NUMBERS OF DEGREES AS MAY BE NECESSARY TO EXTEND FROM EACH POINT ON AND ALONG A LINE DRAWN ALONG THE 2 4795017 01/19/2022 10:23 AM Page 3 of 9 PLANE FROM EACH POINT ALONG THE EXTERIOR BOUNDARY OF THE EASEMENT PREMISES THROUGH EACH SOLAR SITE TO EACH POINT AND ON AND ALONG SUCH LINE TO THE OPPOSITE EXTERIOR BOUNDARY OF THE EASEMENT PREMISES. 4. OTHER EASEMENTS. THE LEASE GRANTS TO LESSEE, FOR THE TERM OF THE LEASE, THE FOLLOWING EASEMENTS OVER, ACROSS AND ON THE LESSOR PROPERTY (A) A NON- EXCLUSIVE ACCESS EASEMENT ("ACCESS EASEMENT") THROUGH THE LESSOR PROPERTY FOR PURPOSES OF LESSEE'S ACCESS TO THE FACILITY ON THE PREMISES ("ACCESS PREMISES"), PURSUANT TO WHICH LESSEE MAY CONSTRUCT, USE AND/OR MAINTAIN A ROAD WITHIN THE ACCESS PREMISES AT LESSEE'S EXPENSE; (B) A NON-EXCLUSIVE EASEMENT ON AND THROUGH THAT PORTION OF THE LESSOR PROPERTY CONSISTING OF THE DISTRIBUTION PREMISES (AS DEFINED IN THE LEASE) FOR THE PURPOSE OF INSTALLING, OPERATING AND MAINTAINING AN ELECTRIC DISTRIBUTION LINE AND RELATED COMMUNICATION LINES BETWEEN THE FACILITY AND ELECTRICAL FACILITIES OWNED BY CERTAIN PURCHASERS OF ELECTRICITY AND RELATED ENVIRONMENTAL ATTRIBUTES; AND (C) AN EASEMENT AND LICENSE FOR THE FACILITY TO CREATE, CAUSE, INCREASE, ACCENTUATE, OR OTHERWISE CONTRIBUTE TO THE OCCURRENCE OF LIGHT, SHADOWS, SHADOW AND LIGHT FLICKERING, GLARE AND REFLECTION, ON AND ACROSS THE LESSOR PROPERTY. UNDER THE TERMS OF THE LEASE, LESSEE SHALL ALSO BE ENTITLED TO INGRESS AND EGRESS TO AND FROM ITS FACILITY AND APPURTENANT EQUIPMENT AND ELECTRICAL POWER LINES OVER THE PREMISES AND SUCH ADDITIONAL AREAS OF THE LESSOR PROPERTY AS SHALL BE REASONABLY NECESSARY TO ACCESS A PUBLIC ROADWAY OR ALLEY. 5. OWNERSHIP OF LESSEE'S IMPROVEMENTS; DISCLAIMER OF TITLE TO ENVIRONMENTAL ATTRIBUTES. THE FACILITY AND RELATED EQUIPMENT CONSTRUCTED, INSTALLED OR PLACED ON THE PREMISES AND WITHIN THE DISTRIBUTION PREMISES BY LESSEE PURSUANT TO THE LEASE SHALL BE THE SOLE PROPERTY OF LESSEE, AND LESSOR AGREES THAT IT SHALL HAVE NO OWNERSHIP OR OTHER INTEREST IN THE FACILITY AND RELATED EQUIPMENT OWNED BY LESSEE ON THE PREMISES OR WITHIN THE DISTRIBUTION PREMISES. THE FACILITY IS AND SHALL REMAIN PERSONAL PROPERTY OF THE LESSEE, NOTWITHSTANDING ANY PRESENT OR FUTURE COMMON OWNERSHIP OF THE FACILITY AND THE PREMISES, AND IRRESPECTIVE OF WHETHER ANY OF THE FACILITY IS DEEMED TO BE A FIXTURE OR OTHERWISE PART OF THE LESSOR PROPERTY OR ANY IMPROVEMENTS ON THE LESSOR PROPERTY, AND LESSOR ACKNOWLEDGES THAT THE FACILITY IS AND SHALL REMAIN PERSONAL PROPERTY OF LESSEE IRRESPECTIVE OF THE MANNER OF ITS ATTACHMENT OR CONNECTION TO THE LESSOR PROPERTY. LESSOR ACKNOWLEDGES THAT LESSEE'S LENDERS MAY REQUEST A FIRST PRIORITY SECURITY INTEREST IN THE FACILITY AS COLLATERAL FOR FINANCING OF THE FACILITY, AND LESSOR CONSENTS TO THE GRANT BY LESSEE OF SUCH A SECURITY INTEREST, AND THE FILING OF INSTRUMENTS NECESSARY TO PERFECT SUCH A SECURITY INTEREST UNDER THE UNIFORM COMMERCIAL CODE IN THE FACILITY AS PERSONAL PROPERTY OF THE LESSEE. LESSOR AGREES THAT ALL ENVIRONMENTAL ATTRIBUTES REMAIN THE PROPERTY OF LESSEE IRRESPECTIVE OF WHETHER LESSOR CONSUMES OR USES ANY OF THE ELECTRICITY GENERATED BY THE FACILITY, AND LESSOR HAS NO TITLE OR RIGHT TO ANY SUCH ENVIRONMENTAL ATTRIBUTES RELATED TO, ARISING FROM OR ASSOCIATED WITH THE FACILITY OR ANY ELECTRICAL CAPACITY OR ENERGY CREATED BY THE FACILITY. ANY GRANT, REBATE, INCENTIVE PAYMENT, TAX CREDIT OR ANY OTHER CREDIT, VALUE, TAX OR OTHER BENEFIT ARISING FROM OR ASSOCIATED WITH THE INSTALLATION OR OWNERSHIP OF THE FACILITY OR THE PRODUCTION OF ENERGY AND CAPACITY 3 4795017 01/19/2022 10:23 AM Page 4 of 9 BY THE FACILITY, INCLUDING, BUT NOT LIMITED TO, ANY PRODUCTION TAX CREDIT OR INVESTMENT TAX CREDIT PURSUANT TO 26 U.S.C. SECTIONS 45 AND 48 OR SIMILAR STATE TAX LAW PROVISIONS. 6. RIGHT TO ENCUMBER: ASSIGNMENT. LESSEE MAY AT ANY TIME MORTGAGE, PLEDGE OR ENCUMBER ALL OR ANY PART OF ITS INTEREST IN THE LEASE AND RIGHTS UNDER THE LEASE AND/OR ENTER INTO A COLLATERAL ASSIGNMENT OF ALL OR ANY PART OF ITS INTEREST IN THE LEASE OR RIGHTS UNDER THE LEASE TO ANY ENTITY WITHOUT THE CONSENT OF LESSOR. LESSEE MAY ASSIGN, SUBLEASE, TRANSFER OR CONVEY ITS INTERESTS IN THE LEASE TO AN AFFILIATE OR SUBSIDIARY OF LESSEE WHICH WILL OWN, LEASE OR OTHERWISE CONTROL THE FACILITY, OR AN ENTITY THROUGH WHICH SUCCEEDS TO ALL OR SUBSTANTIALLY ALL LESSEE'S ASSETS, WITHOUT LESSOR'S CONSENT. LESSEE MAY ALSO ASSIGN, SUBLEASE, TRANSFER OR CONVEY ITS INTERESTS IN THE LEASE TO A THIRD PARTY WITHOUT LESSOR'S CONSENT, SUBJECT TO THE CONDITIONS SET FORTH IN THE LEASE. LESSOR ACKNOWLEDGES THAT IT MAY NOT SELL, TRANSFER, LEASE, ASSIGN, MORTGAGE, OR OTHERWISE ENCUMBER THE FACILITY OR LESSEE'S INTEREST IN THE LEASE AND RELATED EASEMENTS, AND ANY SALE OR CONVEYANCE OF THE LESSOR PROPERTY OR LESSOR IMPROVEMENTS SHALL BE SUBJECT TO THE LEASEHOLD AND EASEMENT INTERESTS OF LESSEE IN THE LEASE. 7. CONTINUING NATURE OF OBLIGATIONS. THE SOLAR EASEMENT AND RELATED RIGHTS AND EASEMENTS GRANTED BY LESSOR IN THE LEASE TO LESSEE ARE EASEMENTS IN GROSS, REPRESENTING INTERESTS PERSONAL TO AND FOR THE BENEFIT OF LESSEE, ITS SUCCESSORS AND ASSIGNS, AS OWNER OF THE RIGHTS CREATED BY THE EASEMENT. THE EASEMENT AND OTHER RIGHTS GRANTED BY LESSOR IN THE LEASE ARE INDEPENDENT OF ANY LANDS OR ESTATES OR INTEREST IN LANDS, THERE IS NO OTHER REAL PROPERTY BENEFITING FROM THE SOLAR EASEMENT AND RELATED RIGHTS GRANTED IN THE LEASE AND, AS BETWEEN THE PREMISES AND OTHER TRACTS OF PROPERTY, NO TRACT IS CONSIDERED DOMINANT OR SERVIENT AS TO THE OTHER. THE BURDENS OF THE SOLAR EASEMENT AND ALL OTHER RIGHTS GRANTED TO LESSEE IN THE LEASE SHALL RUN WITH AND AGAINST THE PREMISES AND THE EASEMENT PREMISES AND SHALL BE A CHARGE AND BURDEN ON THE PREMISES AND THE EASEMENT PREMISES AND SHALL BE BINDING UPON AND AGAINST LESSOR AND ITS SUCCESSORS, ASSIGNS, PERMITTEES, LICENSEES, LESSEES, EMPLOYEES AND AGENTS. THE LEASE, INCLUDING THE SOLAR EASEMENT, SHALL INURE TO THE BENEFIT OF LESSEE AND ITS SUCCESSORS, ASSIGNS, PERMITTEES, LICENSEES AND LESSEES. 8. SURVIVAL OF COVENANTS. THE PARTIES ACKNOWLEDGE THAT THE COVENANTS, CONDITIONS, RIGHTS AND RESTRICTIONS IN FAVOR OF LESSEE UNDER THE LEASE, INCLUDING, BUT NOT LIMITED TO, THE EASEMENT DESCRIBED IN SECTION 3 AND 4 HEREOF, AND LESSEE'S USE OF AND BENEFIT FROM THOSE COVENANTS, CONDITIONS, RIGHTS AND RESTRICTIONS, MAY CONSTITUTE A PORTION OF A LARGER SET OF FACILITIES SERVING SEVERAL SOLAR ENERGY FACILITIES WITH WHICH THE FACILITY WILL SHARE STRUCTURAL AND TRANSMISSION COMPONENTS, INGRESS AND EGRESS, UTILITY ACCESS, AND OTHER SUPPORT, ALL OF WHICH ARE SPECIFICALLY DESIGNED TO BE INTERRELATED AND INTEGRATED IN OPERATION AND USE FOR THE FULL LIFE OF THE FACILITY, AND THAT THE COVENANTS, CONDITIONS, RIGHTS AND RESTRICTIONS IN FAVOR OF LESSEE PURSUANT TO THE LEASE SHALL NOT BE DEEMED 4 4795017 01/19/2022 10:23 AM Page 5 of 9 NOMINAL, INVALID, INOPERATIVE OR OTHERWISE BE DISREGARDED WHILE ANY PORTION OF THE FACILITY OR RELATED SOLAR PROJECTS OR FACILITIES REMAIN OPERATIONAL. 9. LANDOWNER ACTIVITIES. LESSOR USES THE LESSOR PROPERTY FOR AGRICULTURAL PURPOSES. LESSEE RESERVES THE RIGHT TO RELOCATE OR RECONFIGURE THE FACILITY UPON THE PREMISES DURING THE TERM OF THIS LEASE. LESSEE AGREES TO COOPERATE WITH LESSOR TO LOCATE THE FACILITY ON THE PREMISES IN A MANNER THAT MINIMIZES INTERFERENCE WITH AGRICULTURAL OR BUSINESS OPERATIONS OF LESSOR OR LESSOR'S TENANTS, TO THE EXTENT CONSISTENT WITH LESSEE'S PLANNED USE OF THE PREMISES. 10. PURPOSE OF THIS MEMORANDUM. THIS MEMORANDUM HAS BEEN EXECUTED, DELIVERED AND RECORDED FOR THE PURPOSE OF GIVING NOTICE OF THE LEASE, EASEMENTS, AND OTHER RIGHTS IN ACCORDANCE WITH THE TERMS, COVENANTS AND CONDITIONS OF THE LEASE. THE TERMS AND CONDITIONS OF THE LEASE ARE INCORPORATED BY REFERENCE INTO THIS MEMORANDUM AS IF SET FORTH FULLY HEREIN AT LENGTH. IN THE EVENT OF ANY CONFLICT BETWEEN THE TERMS AND PROVISIONS OF THE LEASE AND THIS MEMORANDUM, THE LEASE SHALL CONTROL. [Signature pages follow] 5 4795017 01/19/2022 10:23 AM Page 6 of 9 IN WITNESS WHEREOF, each of the parties hereto has executed and delivered this Memorandum as of the day and year first above written. LESSOR: By: Name: State of tintora County of 1,Je...1d David W. Cogburn The foregoing instrument was acknowledged before me this 3i day of 2026, by David W. Cogburn, a single person. (Seal) KEENAN HALL NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20174350791 MY COMMISSION EXPIRES 12-12-2021 (Notary's Official Signature) My commission expires: 12,- tZ- 2O2 6 4795017 01/19/2022 10:23 AM Page 7 of 9 LESSEE: US Solar Development LLC, a Delaware limited liability company By: Name: Title: State of /lAi (\-@}C) . D,, County of A lAyl, Reed Richerson Vice President The foregoing instrument was acknowledged before me this day of re/Nu3 ( , 201, by Reed Richerson, the Vice President of US Solar Development LLC, a Delaware limited liability company, on behalf of the company. (Seal) DAVID BRINK WATTS Notary Public r;= Minnesota 4 "' NyCommission F ins January 31, 2022 (rotary's Offiicial Signature) My commission expires: /I?) I � `� 1. 7 4795017 01/19/2022 10 23 AM Page 8 of 9 EXHIBIT A TO MEMORANDUM OF LEASE AND SOLAR EASEMENT Description of Premises, Lessor Property, and Access Premises 1 Lessor Property One tract(s) in Weld County, Colorado described as follows Property ID 080324400002 Deeded Acreage 67 Legal Description Lot B of Recorded Exemption No 0803-24-4 RE -4581, recorded July 6, 2007 at Reception No 3488705, being a part of the South half of the Southeast quarter of Section 24, Township 6 North, Range 65 West of the 6th P M , Weld County, Colorado 2 Lease Premises Up to 40 acres of the one tract comprising the Lessor Property as described above 3 Access Premises and Distribution Premises Approximate depictions of the Premises (orange), Access Premises (green), and Distribution Premises (red) are shown below 4795017 01/19/2022 10 23 AM Page 9 of 9 EXHIBIT B TO MEMORANDUM OF LEASE AND SOLAR EASEMENT Description of Easement Premises 1 Easement Premises. Up to 40 acres of the one tract in Weld County, Colorado approximately depicted below Weld County Treasurer Statement of Taxes Due Account Number R4940207 Parcel 080324400002 Legal Description PT S2SE4 24-6-65 LOT B REC EXEMPT RE -4581 Situs Address Account: R4940207 COGBURN DAVID WAYNE 25394 COUNTY ROAD 59 KERSEY, CO 80644-8901 Year Tax Charge Tax Interest Fees Payments Balance 2021 $1,557.86 Total Tax Charge Grand Total Due as of 02/07/2022 $0.00 $0.00 $0.00 51,557.86 $1.557.86 $1,557.86 Tax Billed at 2021 Rates for Tax Area 3879 - 3879 Authority WELD COUNTY SCHOOL DIST RE2 NORTHERN COLORADO WATER (NC GALETON FIRE AIMS JUNIOR COLLEGE HIGH PLAINS LIBRARY WEST GREELEY CONSERVATION Taxes Billed 2021 * Credit Levy Mill Levy 15.0380000* 43,3540000* 1.0000000 4.0000000 6.3420000 3.1970000 0.4140000 Amount $319,42 $920.85 $21,24 $84.96 $134.70 $67.90 $8.79 73.3450000 $1,557,86 Values AG -FLOOD IRRRIGATED LAND AG -WASTE LAND Total Actual Assessed $73,217 $21,230 $11 $10 $73,228 $21,240 ALL TAX LIEN SALE AMOUNTS ARE SUBJECT TO CHANGE DUE TO ENDORSEMENT OF CURRENT TAXES BY THE LIENHOLDER OR TO ADVERTISING AND DISTRAINT WARRANT FEES. Weld County Treasurer Pursuant to the Weld County Subdivision Ordinance, the attached Statement(s) of Taxes Due, issued by the Weld County Treasurer, are evidence of the status as of this date of all property taxes; special assessments and prior tax liens attached to this (these) account(s). Cul-renHtyear's taxes are due but not delinquent. Sign Date: June 14, 2022 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com Gerald and Janet Roth 32100 COUNTY ROAD 49 GREELEY, CO 806319648 Dear Gerald and Janet, US Solar, a community solar developer and owner/operator, is developing a community solar garden on approximately 14.9 acres of the property at 23581 County Rd 66, Greeley. We are providing this letter to share information with you about this project, provide a copy of our site plan, and invite you to a virtual community information meeting on Wednesday, June 29"' at 5:00 pm. The community solar garden property will be leased to US Solar for 20 years, and once the project is operational early next year, it will provide enough energy to power approximately 550 homes in the area. Additionally, you will be eligible to subscribe to this project to receive direct, financial savings on your electric bill, and the project will provide significant savings to low- income residents in the area. Our unique site design minimizes impact to the visual character of the area and will bring several community benefits: - Only 6 to 8 feet tall, our community solar garden is much shorter than other types of arrays, which are usually about 15 feet tall. - The community solar garden has no odor, lights, noise, traffic, or glare. - The community solar garden will have no adverse impact on water, soil, or endangered species. - The native habitat planted around the array will decrease stormwater runoff, provide habitat for animals and insects, and will improve water quality in Weld County. If the project receives a Use by Special Review Permit from Weld County, we anticipate beginning construction in early winter 2022. The most noticeable phase of construction is pile driving, which should only take about 5 days and will be completed during business/daylight hours. In total, construction activities will last roughly 10 weeks. Construction vehicles will access the site from County Rd 66. After construction, you can anticipate 4 preventative maintenance visits per year. As mentioned above, I am hosting a Virtual Community Information Meeting on Wednesday, June 29th at 5:00pm. At the meeting, I will provide an overview of the proposed project's characteristics and timelines, and can answer any questions you may have. You can access the meeting with the below web link and/or phone number: USS Cogburn Solar LLC Community Meeting Wednesday, June 29 • 5:00 - 6:00pm Google Meet joining info Video call link: https://meet.google.com/gye-gkki-cwr Or dial: (US) +1 312-883-2342 PIN: 670 846 334# More phone numbers: https://tel.meet/gye-gkki-cwr?pin=1696322094572 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com If you are unable to attend the meeting, please do not hesitate to contact me and I'd be happy to give you an overview of our project and answer any questions you have. We welcome your questions, feedback, and involvement - if you have any questions or would like more information about any aspect of the project, please contact me at michelle.simmsus- solar.com or 612-299-1213. Thank you! Sincerely, 1Mn o1Og9,wvliwl Michelle Simms — Project Developer US Solar June 14, 2022 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com Harriett Anderson 23279 COUNTY ROAD 66 GREELEY, CO 806319630 Dear Harriett, US Solar, a community solar developer and owner/operator, is developing a community solar garden on approximately 14.9 acres of the property at 23581 County Rd 66, Greeley. We are providing this letter to share information with you about this project, provide a copy of our site plan, and invite you to a virtual community information meeting on Wednesday, June 29"' at 5:00 pm. The community solar garden property will be leased to US Solar for 20 years, and once the project is operational early next year, it will provide enough energy to power approximately 550 homes in the area. Additionally, you will be eligible to subscribe to this project to receive direct, financial savings on your electric bill, and the project will provide significant savings to low- income residents in the area. Our unique site design minimizes impact to the visual character of the area and will bring several community benefits: - Only 6 to 8 feet tall, our community solar garden is much shorter than other types of arrays, which are usually about 15 feet tall. - The community solar garden has no odor, lights, noise, traffic, or glare. - The community solar garden will have no adverse impact on water, soil, or endangered species. - The native habitat planted around the array will decrease stormwater runoff, provide habitat for animals and insects, and will improve water quality in Weld County. If the project receives a Use by Special Review Permit from Weld County, we anticipate beginning construction in early winter 2022. The most noticeable phase of construction is pile driving, which should only take about 5 days and will be completed during business/daylight hours. In total, construction activities will last roughly 10 weeks. Construction vehicles will access the site from County Rd 66. After construction, you can anticipate 4 preventative maintenance visits per year. As mentioned above, I am hosting a Virtual Community Information Meeting on Wednesday, June 29th at 5:00pm. At the meeting, I will provide an overview of the proposed project's characteristics and timelines, and can answer any questions you may have. You can access the meeting with the below web link and/or phone number: USS Cogburn Solar LLC Community Meeting Wednesday, June 29 • 5:00 - 6:00pm Google Meet joining info Video call link: https://meet.google.com/gye-gkki-cwr Or dial: (US) +1 312-883-2342 PIN: 670 846 334# More phone numbers: https://tel.meet/qye-qkki-cwr?pin= 1696322094572 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com If you are unable to attend the meeting, please do not hesitate to contact me and I'd be happy to give you an overview of our project and answer any questions you have. We welcome your questions, feedback, and involvement - if you have any questions or would like more information about any aspect of the project, please contact me at michelle.simmsus- solar.com or 612-299-1213. Thank you! Sincerely, 1Mn o1Og9,wvliwl Michelle Simms — Project Developer US Solar June 14, 2022 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com Pamela Wanek 23541 COUNTY ROAD 66 GREELEY, CO 806319630 Dear Pamela, US Solar, a community solar developer and owner/operator, is developing a community solar garden on approximately 14.9 acres of the property at 23581 County Rd 66, Greeley. We are providing this letter to share information with you about this project, provide a copy of our site plan, and invite you to a virtual community information meeting on Wednesday, June 29"' at 5:00 pm. The community solar garden property will be leased to US Solar for 20 years, and once the project is operational early next year, it will provide enough energy to power approximately 550 homes in the area. Additionally, you will be eligible to subscribe to this project to receive direct, financial savings on your electric bill, and the project will provide significant savings to low- income residents in the area. Our unique site design minimizes impact to the visual character of the area and will bring several community benefits: - Only 6 to 8 feet tall, our community solar garden is much shorter than other types of arrays, which are usually about 15 feet tall. - The community solar garden has no odor, lights, noise, traffic, or glare. - The community solar garden will have no adverse impact on water, soil, or endangered species. - The native habitat planted around the array will decrease stormwater runoff, provide habitat for animals and insects, and will improve water quality in Weld County. If the project receives a Use by Special Review Permit from Weld County, we anticipate beginning construction in early winter 2022. The most noticeable phase of construction is pile driving, which should only take about 5 days and will be completed during business/daylight hours. In total, construction activities will last roughly 10 weeks. Construction vehicles will access the site from County Rd 66. After construction, you can anticipate 4 preventative maintenance visits per year. As mentioned above, I am hosting a Virtual Community Information Meeting on Wednesday, June 29th at 5:00pm. At the meeting, I will provide an overview of the proposed project's characteristics and timelines, and can answer any questions you may have. You can access the meeting with the below web link and/or phone number: USS Cogburn Solar LLC Community Meeting Wednesday, June 29 • 5:00 - 6:00pm Google Meet joining info Video call link: https://meet.google.com/gye-gkki-cwr Or dial: (US) +1 312-883-2342 PIN: 670 846 334# More phone numbers: https://tel.meet/qye-qkki-cwr?pin= 1696322094572 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com If you are unable to attend the meeting, please do not hesitate to contact me and I'd be happy to give you an overview of our project and answer any questions you have. We welcome your questions, feedback, and involvement - if you have any questions or would like more information about any aspect of the project, please contact me at michelle.simmsus- solar.com or 612-299-1213. Thank you! Sincerely, 1Mn o1Og9,wvliwl Michelle Simms — Project Developer US Solar June 14, 2022 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com David Cogburn 32485 COUNTY ROAD 49 GREELEY, CO 806319649 Dear David, US Solar, a community solar developer and owner/operator, is developing a community solar garden on approximately 14.9 acres of the property at 23581 County Rd 66, Greeley. We are providing this letter to share information with you about this project, provide a copy of our site plan, and invite you to a virtual community information meeting on Wednesday, June 29"' at 5:00 pm. The community solar garden property will be leased to US Solar for 20 years, and once the project is operational early next year, it will provide enough energy to power approximately 550 homes in the area. Additionally, you will be eligible to subscribe to this project to receive direct, financial savings on your electric bill, and the project will provide significant savings to low- income residents in the area. Our unique site design minimizes impact to the visual character of the area and will bring several community benefits: - Only 6 to 8 feet tall, our community solar garden is much shorter than other types of arrays, which are usually about 15 feet tall. - The community solar garden has no odor, lights, noise, traffic, or glare. - The community solar garden will have no adverse impact on water, soil, or endangered species. - The native habitat planted around the array will decrease stormwater runoff, provide habitat for animals and insects, and will improve water quality in Weld County. If the project receives a Use by Special Review Permit from Weld County, we anticipate beginning construction in early winter 2022. The most noticeable phase of construction is pile driving, which should only take about 5 days and will be completed during business/daylight hours. In total, construction activities will last roughly 10 weeks. Construction vehicles will access the site from County Rd 66. After construction, you can anticipate 4 preventative maintenance visits per year. As mentioned above, I am hosting a Virtual Community Information Meeting on Wednesday, June 29th at 5:00pm. At the meeting, I will provide an overview of the proposed project's characteristics and timelines, and can answer any questions you may have. You can access the meeting with the below web link and/or phone number: USS Cogburn Solar LLC Community Meeting Wednesday, June 29 • 5:00 - 6:00pm Google Meet joining info Video call link: https://meet.google.com/gye-gkki-cwr Or dial: (US) +1 312-883-2342 PIN: 670 846 334# More phone numbers: https://tel.meet/qye-qkki-cwr?pin= 1696322094572 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com If you are unable to attend the meeting, please do not hesitate to contact me and I'd be happy to give you an overview of our project and answer any questions you have. We welcome your questions, feedback, and involvement - if you have any questions or would like more information about any aspect of the project, please contact me at michelle.simmsus- solar.com or 612-299-1213. Thank you! Sincerely, 1Mn o1Og9,wvliwl Michelle Simms — Project Developer US Solar June 14, 2022 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com Robert Reynolds 23526 COUNTY ROAD 66 GREELEY, CO 806319630 Dear Robert, US Solar, a community solar developer and owner/operator, is developing a community solar garden on approximately 14.9 acres of the property at 23581 County Rd 66, Greeley. We are providing this letter to share information with you about this project, provide a copy of our site plan, and invite you to a virtual community information meeting on Wednesday, June 29"' at 5:00 pm. The community solar garden property will be leased to US Solar for 20 years, and once the project is operational early next year, it will provide enough energy to power approximately 550 homes in the area. Additionally, you will be eligible to subscribe to this project to receive direct, financial savings on your electric bill, and the project will provide significant savings to low- income residents in the area. Our unique site design minimizes impact to the visual character of the area and will bring several community benefits: - Only 6 to 8 feet tall, our community solar garden is much shorter than other types of arrays, which are usually about 15 feet tall. - The community solar garden has no odor, lights, noise, traffic, or glare. - The community solar garden will have no adverse impact on water, soil, or endangered species. - The native habitat planted around the array will decrease stormwater runoff, provide habitat for animals and insects, and will improve water quality in Weld County. If the project receives a Use by Special Review Permit from Weld County, we anticipate beginning construction in early winter 2022. The most noticeable phase of construction is pile driving, which should only take about 5 days and will be completed during business/daylight hours. In total, construction activities will last roughly 10 weeks. Construction vehicles will access the site from County Rd 66. After construction, you can anticipate 4 preventative maintenance visits per year. As mentioned above, I am hosting a Virtual Community Information Meeting on Wednesday, June 29th at 5:00pm. At the meeting, I will provide an overview of the proposed project's characteristics and timelines, and can answer any questions you may have. You can access the meeting with the below web link and/or phone number: USS Cogburn Solar LLC Community Meeting Wednesday, June 29 • 5:00 - 6:00pm Google Meet joining info Video call link: https://meet.google.com/gye-gkki-cwr Or dial: (US) +1 312-883-2342 PIN: 670 846 334# More phone numbers: https://tel.meet/qye-qkki-cwr?pin= 1696322094572 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com If you are unable to attend the meeting, please do not hesitate to contact me and I'd be happy to give you an overview of our project and answer any questions you have. We welcome your questions, feedback, and involvement - if you have any questions or would like more information about any aspect of the project, please contact me at michelle.simmsus- solar.com or 612-299-1213. Thank you! Sincerely, 1Mn o1Og9,wvliwl Michelle Simms — Project Developer US Solar June 14, 2022 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com William and Vearlene Ridings 23816 COUNTY ROAD 66 GREELEY, CO 806319630 Dear William and Vearlene, US Solar, a community solar developer and owner/operator, is developing a community solar garden on approximately 14.9 acres of the property at 23581 County Rd 66, Greeley. We are providing this letter to share information with you about this project, provide a copy of our site plan, and invite you to a virtual community information meeting on Wednesday, June 29"' at 5:00 pm. The community solar garden property will be leased to US Solar for 20 years, and once the project is operational early next year, it will provide enough energy to power approximately 550 homes in the area. Additionally, you will be eligible to subscribe to this project to receive direct, financial savings on your electric bill, and the project will provide significant savings to low- income residents in the area. Our unique site design minimizes impact to the visual character of the area and will bring several community benefits: - Only 6 to 8 feet tall, our community solar garden is much shorter than other types of arrays, which are usually about 15 feet tall. - The community solar garden has no odor, lights, noise, traffic, or glare. - The community solar garden will have no adverse impact on water, soil, or endangered species. - The native habitat planted around the array will decrease stormwater runoff, provide habitat for animals and insects, and will improve water quality in Weld County. If the project receives a Use by Special Review Permit from Weld County, we anticipate beginning construction in early winter 2022. The most noticeable phase of construction is pile driving, which should only take about 5 days and will be completed during business/daylight hours. In total, construction activities will last roughly 10 weeks. Construction vehicles will access the site from County Rd 66. After construction, you can anticipate 4 preventative maintenance visits per year. As mentioned above, I am hosting a Virtual Community Information Meeting on Wednesday, June 29th at 5:00pm. At the meeting, I will provide an overview of the proposed project's characteristics and timelines, and can answer any questions you may have. You can access the meeting with the below web link and/or phone number: USS Cogburn Solar LLC Community Meeting Wednesday, June 29 • 5:00 - 6:00pm Google Meet joining info Video call link: https://meet.google.com/gye-gkki-cwr Or dial: (US) +1 312-883-2342 PIN: 670 846 334# More phone numbers: https://tel.meet/qye-qkki-cwr?pin= 1696322094572 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com If you are unable to attend the meeting, please do not hesitate to contact me and I'd be happy to give you an overview of our project and answer any questions you have. We welcome your questions, feedback, and involvement - if you have any questions or would like more information about any aspect of the project, please contact me at michelle.simmsus- solar.com or 612-299-1213. Thank you! Sincerely, 1Mn o1Og9,wvliwl Michelle Simms — Project Developer US Solar June 14, 2022 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com Michael and Susan Olearnick 23768 COUNTY ROAD 66 GREELEY, CO 806319630 Dear Michael and Susan, US Solar, a community solar developer and owner/operator, is developing a community solar garden on approximately 14.9 acres of the property at 23581 County Rd 66, Greeley. We are providing this letter to share information with you about this project, provide a copy of our site plan, and invite you to a virtual community information meeting on Wednesday, June 29"' at 5:00 pm. The community solar garden property will be leased to US Solar for 20 years, and once the project is operational early next year, it will provide enough energy to power approximately 550 homes in the area. Additionally, you will be eligible to subscribe to this project to receive direct, financial savings on your electric bill, and the project will provide significant savings to low- income residents in the area. Our unique site design minimizes impact to the visual character of the area and will bring several community benefits: - Only 6 to 8 feet tall, our community solar garden is much shorter than other types of arrays, which are usually about 15 feet tall. - The community solar garden has no odor, lights, noise, traffic, or glare. - The community solar garden will have no adverse impact on water, soil, or endangered species. - The native habitat planted around the array will decrease stormwater runoff, provide habitat for animals and insects, and will improve water quality in Weld County. If the project receives a Use by Special Review Permit from Weld County, we anticipate beginning construction in early winter 2022. The most noticeable phase of construction is pile driving, which should only take about 5 days and will be completed during business/daylight hours. In total, construction activities will last roughly 10 weeks. Construction vehicles will access the site from County Rd 66. After construction, you can anticipate 4 preventative maintenance visits per year. As mentioned above, I am hosting a Virtual Community Information Meeting on Wednesday, June 29th at 5:00pm. At the meeting, I will provide an overview of the proposed project's characteristics and timelines, and can answer any questions you may have. You can access the meeting with the below web link and/or phone number: USS Cogburn Solar LLC Community Meeting Wednesday, June 29 • 5:00 - 6:00pm Google Meet joining info Video call link: https://meet.google.com/gye-gkki-cwr Or dial: (US) +1 312-883-2342 PIN: 670 846 334# More phone numbers: https://tel.meet/qye-qkki-cwr?pin= 1696322094572 100 N 6t" Street, Sulte 410B 612.260.2230 Mlnneapolls, MN 55403 www.us-solar.com If you are unable to attend the meeting, please do not hesitate to contact me and I'd be happy to give you an overview of our project and answer any questions you have. We welcome your questions, feedback, and involvement - if you have any questions or would like more information about any aspect of the project, please contact me at michelle.simmsus- solar.com or 612-299-1213. Thank you! Sincerely, 1Mn o1Og9,wvliwl Michelle Simms — Project Developer US Solar Community Information Meeting — USR22-0013 June 29, 2022, 5pm MST Held virtually on Google Meet and conference call. Letters were delivered to property owners within 500 feet of the USR that provided information on the project and a site plan, and invited the recipients to the virtual meeting. List of Attendees: Michelle Simms (Applicant — USS Cogburn Solar LLC) Pam Wanek Discussion: Applicant walked through provided presentation with attendee and discussed general details of the proposed USR, as well as the construction schedule and materials, and long term operation characteristics of the proposed USR. Attendee provided questions on the proposed SEF and its characteristics. Because this attendee lives within 500' of the proposed USR, their residence will receive landscape screening from the proposed USR in accordance with Section 23-4-1030.B of the Weld County Code. The Applicant shared that Rocky Mountain Juniper trees have been selected as the best fit for screening the project due to its compatibility with soil conditions, location and elevation, and local plant community composition. However, alternative species can also be considered if desired. Other topics discussed include any visual or physical impacts of the proposed SEF during operations. Applicant shared that minimal disruption will occur in the area during construction, and once the proposed SEF becomes operational, it creates no noticeable noise and no odor, light or flickering, vibration, vermin, dust, or other nuisances. The operation of the SEF is virtually unnoticeable to neighboring properties and it will not impact surrounding property's right to quiet enjoyment. The proposed SEF's proposed native ground cover was also discussed. The native ground cover will be comprised of a habitat mix native to this part of Colorado and will decrease erosion, noxious weed growth and establishment, and will provide habitat to pollinators, birds, and small animals. It will also seek to maintain the character of the area and blend seamlessly with the ongoing row crop agriculture operations and homesteads. cam v 5 tL X41± 4141__ ii tt r' �?.f1y'+,l`1t tSr1./�P y.��ra Y NT.E' ittfidli Jt'1.1111.0 2 3 - i.Ala-kn'Nr11'ffCylfl 4,. ?tgar.flre!1!111 61Z tmai J UIN 92491. licit ekliai>1,fIl 4141. �-:41:41-44141. r a! ��•Z1•tTIAar'n [tA'R!lll:.iTl.Tr A 1,111-.'!11 it , * Pte �r ar.1. 1[=1-'41! 4.J•it eu. erA'. it rit.f I '5 1 r r111411'41 11. 1Uu A' 11.9 I: I: •.Y., n 111 t•tR: -.:' 1111!,1! 11 r1i'.r4%-:aloe s_ jr,fteC ft!" tilt: I4"Ia■IJIP1'1 I . •"• "-` ••••.r...,t. ../... r r iry? r Rer. Jl lJtli_r .. .... _. ..,, f!1'1! llJiJf11AICI1. 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' 1.INUS lit{7tnitil ...............rs7.�1{�i!\'L1ltElli1114{KN\1i +,'1 I, '"..'.n.AML{1ttt1tt1t94RAt1t6tt{NlE{1Br..a:vkO.ARb�tA4�lt$tit$hi^tba4LR 'y ` U JOLAR © Copyright 2020 United States Solar Corporation 1 ACCaS 1 C Pol CONSTRUCTION Construction of a solar garden is fairly straightforward. • Galvanized steel I beams driven into ground • Racking installed on top of I -beams • Solar panels clip into racks • No concrete footings, permanent structures or buildings Timeline • I-beam driving is most noticeable part (3 days approx.) • Construction completed in about 10-12 weeks • Work will be completed Mon -Sat between 7am-7pm, excluding holidays U JOLAR © Copyright 2020 United States Solar Corporation OPERATION The Solar Garden's operation will be virtually unnoticeable. • 1-2 pickup trucks will visit the site approximately quarterly for vegetation maintenance and routine checkups. • The Solar Garden is monitored remotely 24/7 • No noticeable noise, traffic, odor, glare, dust, light, vibration, etc will be created or emitted from the Solar Garden. • No hazardous materials are involved in the project Materials include silicon, glass, silver, and copper. • The pollinator -friendly native habitat is designed specifically for this site and will minimize erosion U$1.Y_AR © Copyright 2020 United States Solar Corporation VISUAL CHARACTERISTICS • Single -axis tracking racks are 6-8 feet tall • Panels create no glare • Farm -field style fence blends in with existing characteristics • Screening options for neighbors within 500 feet of the Project • The pollinator -friendly native habitat will blanket the project area and re-create a native Colorado prairie, providing habitat for pollinators, songbirds, game birds, and small animals. • Fence is risen a few inches across the ground to allow small animals to pass through U$1.Y_AR © Copyright 2020 United States Solar Corporation • Financial savings opportunity for residents in Weld County • Upgrades to electrical infrastructure and power lines • Native habitat groundcover visually enjoyable and provides benefits to community and wildlife • Preserve open -space feel of the community UPCOMING DATES • Weld County Planning Commission • Tuesday, July 12, 12:30pm • Weld County Administration Building, 1150 0 St, Greeley, CO 80631, USA • Weld County Board of Commissioners • Wednesday, August 17, 10am • Weld County Administration Building, 1150 O St, Greeley, CO 80631, USA U JOLAR © Copyright 2020 United States Solar Corporation Hello