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Home My WebLink About20242185.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? N No / Yes Violation Case Number: Parcel Number 0 8 0 3 _ 1 1 0 0 0 _ 0 2 8 Site Address. 34101 COUNTY ROAD 47 , WELD COUNTY Legal D►escri tion: 13618-C PT SE4 11 6 65 BEG N376.64' FROM SE COR SEC S89D43'W 873.70' N220.63' N$1 D38'W 4( p Section: 11 , Township 06 N, Range 65 W Zoning District: Agricultural Acreage: 31 Within subdivision or townsite? I No I. Yes Name: Water (well permit # or water district tap #): Sewer (On -site wastewater treatment system permit # or sewer account #): Floodplain I ✓ No I Yes Geological Hazard No / Yes Airport Overlay 11 Na I i:fres PROJECT USR Use being applied for: Name of proposed business: PROPERTY OWNER(S) (Attach additional sheets if necessary.) Name: Matthew Elfert - Manager Company: Sunlight Farm, LLC Phone #: 720-684-9194 Street Address: PO BOX 850 Email: sunlightfarm59@gmail.com City/State/Zip Code: Johnstown / CO / 80534 APPLICANT/AUTHORIZED AGENT (Authorization Form must be included if there is an Authorized Agent) Name: Kyle Sundman Company: Pivot Energy Phone #: (888) 734-3033 Email: Street Address: 1601 Wewatta St Suite #700 City/State/Zip Code: Denver Co 80202 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. f3u:ncOltarL 1/10/24 a ure nature Kyle Sundman Date Signature Date Print Print 07/22 9 Owner Signature AUTHORIZATION FORM e I, (We),�t Steel" nonyter (Owner — please print) (Authorized Agent/Applicant—please print) DEPARTMENTS OF PLANNING BUILDING, DEVELOPMENT REVIEW AND ENVIRONMENTAL HEALTH 1402 NORTH 17TH AVENUE PD BOX 758 GREELEY CO 80632 Pivot Energy , give permission to to apply for any Planning, Building, Access, Grading or OWTS permits on our behalf, for the property located at (address or parcel number) below: 080311000028 . 13+18- PT BE4 11 6 65 BEG N3i of Section 1 , Townshi 08 N, Ran e85 1!' Legal Description:Township 06 Name: Property Owners Information: PO BOX 850, Johnstown, CO 80534 Address: Lot Block Phone: 720-684-9194 sunlightfarm59@0mail.cem E-mail: Authorized Agent/Applicant Contact Information: 1601 Wewatta St Suite #700 Denver CO 80202 Address: Phone: (888) 734-3033 E -Mail: Correspondence to be sent to: Owner N Authorized Agent/Applicant r._ by: Mail Email Additional Info: I (We) hereby certify, under penalty of perjury and after carefully reading the entire contents of this document, that the information stated above is true and correct to the best of my (our) knowledge. Date /2/5c/673 Owner Signature Date Subscribed and sworn to before me this kjt-day of Ole20 ` by Me3/4\--\r‘e,,a EitCy My commission expires O V- \5 Q'fl 04/ Notary Public NADIR O SHRESTHA NOTARY PUBLIC STATE OF COLORADO NOTARY 1D 20234001899 MY COMMISSION EXPIRES 01.15-2027 07/22 11 4936348 12/20/2023 08:09 Total Paces 3 Rec Fee: .00 Carly ' apples- Clerk and Recorder, Weld County , CO STATEMENT OF AUTHORITY This document confirms the existence of the company described below and the persons authorized to act on behalf of the company (CURS. sections 38-30-108.5 and 38-30-172). Company Name: Sunlight Farm, LLC, a Colorado limited liability company. 9. Date of Formation: December 13, 2023. 3. State . . Which Articles of Organization Were Filed: Colorado. 4. Mailing Address of Co . pant': P.O. Box 850, town, CO 80534. 5 Name and Address of Registered Agent: Matthew . Eifert, 9701 Pearl Street, Apt., 7303, Thornton, CO 80229. Manager: Matthew . Eifert is now serving as the Manager. If he becomes unable or unwilling to serve, then Blanca Lidia Eifert is authorized to serve as Manager until Matthew Eifert regains the ability to serve or until Bianca Lidia Effert appoints new Manager. Powers of M an ager. The Manager shall have all the powers, duties, responsibilities, and restrictions provided by the Colorado Limited. Liability Company Act, the company's Articles of Organization, and the company's Operating Agreement. The Manager's powers include but are not limited to the authority to: (a) Administer the company's property and finances, conduct business transactions on behalf of the company, and maintain the company's financial books and organizational records. 0:0 open bank, investment, and other accounts in the name of the company; deposit payments received, pay expenses, and establish reserves; initiate electronic funds transfers and autoatic periodic payments; and obtain credit cards and loans for the company. (c) Obtain, use, and update the company's online usernames, passwords, and other identifications; access the company's accounting, bookkeeping, eeping, and tax software and applications, banking and financial accounts, computers and drives, electronic devices, data and document storage sites, digital media file accounts, payment portals, social media sites, storage media, websites, and other means of electronic storage and communication; view, transfer, and download documents, files, information, statements, and other content obtained from such sources; and Sunlight Farm, LLC - Statement of Authority - page �. 4936348 12/20/2023 08:09 AM Page 2 of 3 continue, suspend, or close any such accounts, services, and sites. (d) Obtain tax identification numbers for the company; prepare or direct the preparation of tax returns; pay taxes and any penalties and interest request and receive copies of the company's local, state, and federal tax returns for current or prior tax years; access electronic accounts containing the company's confidential tax information. (e) Delegate administrative or custodial duties to suitable persons and financial institutions in any jurisdiction; appoint a nominee or other agent to carry out banking functions for the company; retain, compensate, and delegate powers to accountants, assistants, attorneys, banks and other financial institutions, brokers, consultants, custodians/ financial advisors, investment managers, property managers, real estate agents, and other professionals and agents, including affiliates of the Manager and any entities in which the Manager or affiliate has an interest; and disclose information about the company to such persons or insttutions. Sign and record instruments conveying, encumbering, or otherwise aff - title to real property. Make or terminate contracts for the management, repair, maintenance, improvement, leasing, sale, purchase, or financing of the company's real or personal property. (h) Prepare, sign, file, and record any document on behalf of the company as required by local, state, or federal law, and any statement of authority or other document confirming the Manager's authority to act on behalf of the company. 8. Reliance by Third Parties: Any person or entity may rely ©n the statements contained in this document unless the person or entity has actual knowledge that the provision relied on in this document is no longer correct or has been amended. 9. Affirmation: The person signing blow states under penalty of perjary that: (a) The company named above exists and is valid. (b) All the sta tem. en is in this document are true and correct. Sunlight Farm, LLC - Statement of Authority - page 4936348 12/20/2023 08:09 AM Page 3 of (c) The company's Articles of anization and Operating Agreement have n o t been revoked, modified, or amended in any manner that would cause any statement in this document to be incorrect. (d) The Managing Member named in this document is authorized to act for the company and to execute and record this document on behalf of the company, SUNLIGHT FARM, LLC, a Colorado limited liability ►mpany 11:3-112,41-ef Blanca Lidia Eifert, Founding Me r STATE OF COLORADO COUNTY OF LARIMER Acknowledged before me on 11? ,gar' iljt°r .: pi 2023/ by Blanca Lidia Rifert as Founding Member of Sunlight Farm, I ,I L, Colorado limited liability company. Notary Public GABRIEL A GUY NOTARY PUBLIC - STATE OF COLORADO NOTARY ID 20064047845 MY COMMISSION EXPIRES APR 19, 2027 Sunlight Farm, LLC - Statement of Authority page STATE OF DELAWARE CERTIFICATE OF FORMATION OF LIMITED LIABILITY COMPANY The undersigned authorized person., desiring to form a limited liability company pursuant to the Limited Liability Company Act of the State of Delaware, hereby certifies as follows: , The name of the limited liability company is Pivot Solar 59 L. . he Registered Office of the limited liability company in the State of Delaware is located at 108 wo 13th St Suite 100 (street), in the City of Wilmington , Zip Code 19801 . The name of the Registered Agent at such address upon whom process against this limited liability company may be served is \rem Anent Services Inc. . By: 4 f y. AuthorF� .. erson Li O u (5 Minion Name Print or Type State of Delaware Secretary of State Division of Corporations Delivered 03:52 PM 07/20/2023 FILED 03:52 PM 07/20/2023 SR 20233045683 - File Number 7580384 4824418 05/04/2022 11:19 AM Total Pages: 5 Rec Fee: $33.00 Carly Koppes - Clerk and Recorder, Weld County , Co Exhibit 0 - MEMORANDUM of LEASE Prepared by: Return to: THIS 'IEMO NDUM OF LEASE ("Memorandum") is entered into March 25, 2022 between Blanca Eifert ("Landlord") whose address is 46 Cayuga Street, Johnstown, CO, and Pivot Energy Development LLC, a Limited Liability Company ('Tenant'), whose address is 1750 15tH st, Suite 400, Denver CO 80202 to provide record notice, of that certain Lease Agreement dated February 18, 2022 (the "Lease") whereby Landlord leased to Tenant a portion of the real property described in the attached Exhibit A ("Property"). '). Specifically, Landlord leased to Tenant that portion of the Property shown in Exhibit B, together with all improvements, fixtures, personal property and trade fixtures, and all other appurtenances, tenements, hereditaments, ingress, egress, rights and easements pertaining to the Property (collectively, the ''Leased Premises"). Landlord and Tenant agree that upon completion of a final site plan and survey delineating the Leased Premises, the parties shall amend Exhibit B to more accurately describe the Leased Premises. The solar photovoltaic power generating facility and all related equipment installed, owned and operated by Tenant and located at the Leased Premises (collectively, the Gen rot/ngfac/llt ) shall not be deemed a fixture. The Generating Facility is Tenant's personal property and Landlord has no right, title or interest in the Generating Facility. Further, Landlord has waived any and all rights it may have to pJace a Hen on the Generating Facility,. The Effective Date of the Lease is February 18, 2022. The Construction Term of the Lease begins on the Commencement Date (as defined in the Lease) and continues unth the Commercial Operations Date (as defined in the Lease). The operational Term of the Lease begins on the Commercial Operations Date and continues for 20 years from the Commercial Operations Date (as defined in the Lease) unless extended or earlier terminated as provided in the Lease, Tenant has the right to extend the Term for up to two additional Extension Terms of five years each as set forth in the Lease. Additionally, pursuant to the terms of the Lease, Landlord has granted certain easement rights over and across adjacent property, as further described on Exhibit C (the "Adjacent Property"). Said Lease contains additional rights, terms and conditions not enumerated in this Memorandum, This instrument is executed pursuant to the provisions of said Lease and is not intended to vary said rights, terms and conditions. Reference should be made to the Lease for further particulars. it -SEPARAT€ SIGNATURE PAGES AND NOTARY PAGES FOLLOW- - 15 Landlord Initials P)„, -E:. 4824418 05/04/2022 11:19 AM Page 2 of5 IN WITNESS WHEREOF, the parties hereto have executed this Memorandum of Lease as of the date first written above. Tenant: Pivot Energy Development LLC [1/4, /1:1 Name:Lyn that STATE OF Cobrin k COUNTY OF Qeavec On this 2 day of Al a `7 , 2012, , before me, the undersigned Notary Public in and for said County and State, personally appeared Tom frtcq,4+ fi as Authorized Real Property Signatory off vo1 [nei n , a Limited Liability Company, who executed the foregoing instrument on behalf of said company voluntarily for the purposes therein expressed, S/he is either.c personally known to me, or ❑ has produced as identification, and t4 did or o did not take an oath. In witness whereof, f have hereunto set my and official seal the day and year last above written, My commission expires: bctober 17 L02Sw Irevfaer< Notary Public Dego Lopez Duran NOTARY PUBLIC STATE of COLS NOTARY to 20214042.224 MY Oh1MLSS1U'4 EXPIRES doter 27, 2025 Dairsecrear -16 - s4 Landlord iniI o)s -4- . 4824418 05/04/2022 11:19 AM Page 3of5 Landlord: -los) is -4 lithcpj ea Z. Name: STATE OF 6 D } ecfv�ip eii CO TY OF MI�Ia) 55. zZ. Then personally appeared the R G ° � above namedproved to me by satisfactory evidence � ply _ � e jdence of identification, being (check whichever applies) o driver's fcense or other state or federal governmental document bearing a photographic image, o oath or affirmation of a credible witness known to me who knows the above signatories, or o my own personal knowledge of the identity of the signatories, to be the person whose name is signed above, and acknowledged the foregoing instrument to be his/her free act and deed for the purposes stated therein, before me. My commission expires; /19.1 Z a 12--5.." Notary Public - 17 ELEANOR B TOMLIN NOTARY PUBLIC - STATE OF COLORADO NOTARY ID 20174038480 MY COMMISSION EXPIRES OCT 12, 2025 Landlord Initials i 4824418 05/04/2022 11:19 AM Page 4of5 Exhibit A -- Property • • 34101 COUNTY ROAD 47 WELD 13618-C PT SE4 11 6 65 BEG N376.64' FROM SE COR SEC S89D43'W 873.701 N220,631 N81D38W 461.78' NO2D10'W 848.17' S89D33'E 1362.72' S TO BEG {.88R) (32.118A M/L) •..... .yWTr• - Y: LW-. ••• .. V sr" .i. • •a{a. -140x!3** �n . �tt-tefilWf•-"f•1'rral'•'.-•Y..Y:SriM4 ' i 22 S s u S y*VS 'Ili I-f,s; ( 4{ #4 r•..•MW*. ✓•••..•A i1V n &:Sio vas a ; , 4 e .•FBI ,�•,¢ {]�¢�Y.{ tors' I - _ "a.YCiFT • 411116k -a.:- a •• t: wc. -t +al • r. va r•••-•z-seveyla -•W••• ..arn araaa+ 'I •� .+.... C , • • 5- • 1 • A • St I t ' S I 4. •••• a1 • e at e -. i • C. 1.2 Asa" • m, ., � � r 4:° • •I • ■ _12_ Landlord Initials 4824418 05/04/2022 11:19 AM Page 5of5 •..........•................................ .........rwe. rr•rt r....... .............................a.r..rnrtr............................ n•[[ r•............ .[nww[miwa ur[.rY[[4.• [. i[. la. .[a 11�:' ��F'n I..y �.e[�� [•R �^I"•a....w��r� Lai ....rwnu.....-r[rw[wa[[[rw...[nolio ................. inns [[........[Y.Y...w•u.iil.[i.w[wr......... ................. .w.w.w.. o Y..h... Ei.[ur .r♦ ..... ...< r • Exhibit B - Leased Premises The Leased Premises shall consist of up to approximately 283 acres, as shown in green below. Landlord Initials Pivot sj energy Pivot Energy Inc. — Planning Questionnaire 1. Explain the proposed use and business name. • Pivot Solar 59 LLC, c/o Pivot Energy Inc. ("Pivot") is seeking to construct a solar garden in Weld County that is approximately 5 MWac in size on the following parcel: 080311000028. • The projects will be built on approximately 27 contiguous acres. • The projects will deliver electricity to a local energy consumer via Xcel Energy's "Solar*Rewards Offsite" program. This program is similar to Xcel's "Solar Rewards Community" program but allows for larger power consumers to subscribe to a larger amount of solar. Xcel has awarded this parcel with solar energy generation, which must live with the parcel and cannot be relocated or reallocated. • The panels are expected to be less than ten feet above grade at their highest point and Pivot commits to following the Weld County Code panel height restrictions. The panels will be surrounded by a decorative wildlife friendly game fence, similar to what the Colorado Department of Transportation ("CDOT") and Colorado Parks and Wildlife ("CPW") use. The panels' exact height is subject to final structural engineering. • Dual use "agrivoltaics" — projects that incorporate agricultural uses with solar energy production — are a priority for Pivot's portfolio of sites undergoing permitting in 2024. Depending on site characteristics, tenant farmer availability, and project financials, Pivot will evaluate whether the secondary agricultural use will take the form of sheep grazing or crop production underneath the panels, with a strong preference towards the latter. Based on a preliminary review of this site, Pivot feels confident that crop production is feasible under the panels and will keep planning staff updated on findings during the development process. • The project lease area will include panels and inverters mounted on steel posts/beams, concrete -pad - mounted transformers and other electrical equipment, an access drive with hammerhead emergency turn -around, and perimeter fencing with gates. • The solar array will be designed to meet the maximum wind and snow loads applicable in Weld County. In addition, the panels themselves have a manufacturer warranty of at least 25 years. • Generally, a contracted Operations and Maintenance ("O&M") crew of one to four people will visit the site four to eight times annually for routine inspections, maintenance, and vegetation control and on an as -needed basis to address equipment outages. There will be no permanent staff on the site, which will be remotely monitored. • Upon the conclusion of the project's useful life, the project owner will remove all project materials and return the property to the landowner in the originally leased condition, minus any vegetation and grading. Please reference the attached Decommissioning Plan for more information. 2. Explain the need for we proposed use. • The Weld County Comprehensive Plan states that one of the County's top priorities is preserving landowner rights and creating an environment conducive to local economic growth, all while maintaining the overall well-being of the local population. Specifically, the code plan states "...the goal of the Comprehensive Plan [is] to promote opportunities for County Citizens, while protecting private property rights." • Pivot's ground lease presents an advantageous opportunity for the state to generate additional revenue, which will go toward funding schools in Weld County and across the State. Revenues from this project would far exceed any revenues that would be collected from agricultural leases on the pivotenergy.net Pivot sj energy Pivot Energy Inc. — Planning Questionnaire same acreage. The parcel is presently largely vacant, and no agricultural production has taken place for years. • This project will also provide reduced -cost energy to customers of Xcel Energy located in Weld County and across the state. 3. Describe the current and previous use of the lands • The land is currently zoned agricultural. In the past, the land has been used for agricultural production. 4. Describe the proximity of the proposed use to residence • On November 17, 2023, all abutters to the property were sent a USPS priority mail envelope containing a letter notifying them of the project, addressing frequently asked questions, and providing contact information at Pivot. • In addition, a community meeting was held on December 11th, 2023, at the Eaton Public Library in Eaton. Invitations were included in the USPS priority mail envelopes, and neighbors within a 0.5 -mile radius were invited to the meeting. Fifteen (15) neighbors attended the meeting. • The proposed project occupies the majority of the parcel, with the exception of the southeast corner, and the majority of nearby residences are located more than 500 feet from the project's boundary. • There are seven (7) residences within 500 feet of the proposed project. These residences are: Sunlight Farm LLC (Owner) 34101 County Road 47; 22639 County Road 70; 22881 County Road 70; 22799 County Road 70; 34294 County Road 47; 34030 County Road 47; 34037 County Road 47. • Per County ordinance 23-4-1030-C-3, Pivot shall seek to reduce the setback via screening and/or signed waiver of informed consent by the residence owners. 5. Describe the surrounding land uses of the site and how the proposed use is compatible with them. • The surrounding land uses are a mix of agricultural, oil and gas, and rural residential units. • As a low -impact use, solar energy naturally co -exists well with agricultural and oil and gas operations. It produces no sound, light, or traffic, and is an unmanned operation with the exception of 4-8 annual visits by a small maintenance crew (1-2 pickup trucks) and, if applicable, intermittent visits from a local shepherd (1 pickup truck). Pivot's solar facilities use pollinator -friendly, low growth seed mixes, and blend into the natural landscape. 6. Describe the hours and days of operation (i.e. Monday thru Friday 8 AM to 5 PM) • During construction, crews will be on -site from approximately 7:00 am - 6:00 pm Monday -Friday. Most vehicles will arrive early in the morning (7:00 to 9:00 am) and will begin departing the construction site around 3:00 pm. • Once constructed, the site will be unmanned but the solar farm will generate electricity during daylight hours each day of the year. • Operations and maintenance crews will be on -site up to eight times annually for up to four hours per visit. 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 if shifts. • During the construction phase, there will be a crew made up of approximately 40 people on site each day. The construction crew will consist of project managers, laborers, electricians, civil contractors, pivotenergy.net Pivot sj energy Pivot Energy Inc. — Planning Questionnaire and any other necessary personnel for the project. Once construction is complete, there will rarely be personnel on site, generally limited to shepherd and O&M crew during their scheduled trips. 8. Describe the maximum Humber of users, patrons, members, buyers, or other visitors that the site will accommodate at any one time. • The site will not be open to the public. • The gate around the site will be locked and will only be accessible to those constructing the facility or periodically maintaining the facility. The site will also be accessible to life -safety emergency personnel. LISt the types and maximum numbers of animals to be on the site at any one time. • During commercial operation of the solar facility, Pivot anticipates using seasonal sheep grazing to manage vegetation onsite. During the summer months, approximately 40 sheep will be onsite, at the discretion of the local grazing partner. 10. List the types, and number of operating and processing equipment. • Not applicable. 11. List the type, number and uses of the existing and proposed structures. • There will not be any structures built onsite. 12. Describe the size of any stockpile, storage, or waste areas • There will not be any stockpile, storage, or waste areas onsite. 13. Describe the method and time schedule or removal or disposal of debris, junk and other wastes associated with the proposed use. • Any debris, junk, or wastes associated with building the project will be removed and disposed of property prior to completion. No waste will be produced once the array is "turned -on" and producing energy. 14. Incluae a timetable showing the periods of time reauired for the construction of the operation. • Please reference the Vehicle Trip Generation Table Below. Table 1 —Vehicle Trip Generation Project Phase (Time Period) Vehicle Type Estimated Gross Vehicle Weight Number of Vehicles Per Day Maximum and Average Vehicle Trips Per Day Site Preparation (approx. 1-3 weeks) Equipment Hauling Trucks 30,000-65,000 lbs 0-2 0-4 P j=;!=;ginger Vehicles 2,000-'0 000 lbEi 2-• 4-10 Fuel Delivery 2Dinno-2..Li.00I_! lbs. 1 2 , Max-16/Ave-9 Material and Equipment Delivery (approx. 4-5 weeks)) Conex Container and Delivery Trucks 30,000-50,000 lbs 10-30 20-60 Equipment Hauling Trucks 20,000-40.000 lbs 0-8 0-16 - Max — 79/Ave - 40 Solar facility Installation 16-7 months) Passenger Vehicles 2,000 to 10,000 lbs 20-30 40-60 Fuel Truck 20,000 to 30,000 lbs 1 2 Material Deliver,' Truck 20,000 to 30,000 lbs "I 2 Max — 64/Ave - 52 (ongoing Operations once operational) Utility Vehicle 2,000 to 10,000 lbs 1 per month or less Max - 2/Ave - 0 pivotenergy.net Pivot sj energy Pivot Energy Inc. — Planning Questionnaire 15. Describe the proposed and existing lot surface type and the square footage of each type (i.e. asphalt, gravel, landscaping, dirt, grass, buildings). Disturbance Surface Type Disturbance Area (sf) Disturbance Area (ac) Gravel Access Drive 8.034 0.184 600 0.014 Concrete Equipment. Pads Class VI Equipment Pads 960 0.022 Total 9.594 0.220 The remaining project area will be seeded with a native pollinator friendly grass mix or potentially utilizing dual -use crop production underneath the panels which will decrease the runoff as it is less impervious than row crop. 16. How many parking spaces are proposed? How many handicap -accessible parking spaces are proposed? • No parking spaces are proposed on -site. This site is not open for public access. 17 Describe the existing and proposed fencing and screening for the site including all parking and outdoor storage areas. • Pivot is proposing to use a decorative wildlife friendly fence to enclose the area as well as low growth decorative native grasses in between array rows and around the sides of the array. • The proposed fence is Colorado Parks and Wildlife's preferred decorative wildlife -friendly game fence, about 8' tall with a smooth top wire. • There will be no on -site outdoor storage areas. 18. Describe the existing and proposed landscaping for the site. • Pivot will be seeding under the panels with a native pollinator friendly grass mix or potentially utilizing dual -use crop production underneath the panels. • Pivot is proposing to use a decorative wildlife friendly fence to enclose the area. • No additional landscaping is proposed. 19. Describe reclamation and procedures to be employed as stages of the operation are phased out or upon cessation of the Use by Special Review activity. • Once the project has reached the end of its useful life and the lease has been terminated, Pivot or the facility owner will remove all improvements made and either recycle, reuse, or repurpose all materials. The site will be re -seeded with a native dryland seed and the property will be returned to the landowner ready to be developed as he or she wishes. • Please reference the attached Decommissioning Plan for more details. 20. Describe the proposed fire protection measures. • Pivot will maintain vegetation under the panels. • Internal roads and setbacks between fence and array have been designed to provide access by emergency vehicles if need be. pivotenergy.net Pivot sj energy Pivot Energy Inc. — Planning Questionnaire 21. Explain how this proposal is consistent with the Weld County Comprehensive Plan per Chapter 22 of the Weld County Code. • In Section 22-2-10 C, the County Code states that one of its guiding principles is to Promote Economic Growth and Sustainability. The proposed project is a PV solar facility that generates electricity without generating any emissions. This project will last for 20-40 years, bringing the County economic revenue and support. This project will further Weld County's stated goal of encouraging the development of alternative energy sources as a hedge against the volatility of traditional energy sources. • In Section 22-2-60 A, the County Code states the importance of Wildlife in the County. The proposed project will be surrounded by a wildlife friendly game fence to ensure no animals are trapped within the project area. Studies of the project area did not reveal any nexus with any protected, threatened, or endangered species or their habitats. In addition, Pivot will work with Colorado Parks and Wildlife to ensure the project meets any necessary requirements. • In Section 22-2-60 B, the County Code states it aim to support responsible energy and mineral development. Solar is both an alternative and sustainable energy source that does not emit any odors and has limited vehicle traffic once construction is complete. In addition, the agricultural land that the solar facility is on will be preserved throughout the lifespan of the solar array and can be used for agricultural purposes following the life cycle of the system. This development will not generate any perceivable noise and therefore complies with this development requirement. 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 III of Chapter 23 of the Weld County Code,) • Section 23-3-10 of the County code states: The A (Agricultural) Zone District is intended to provide areas for the conduct of agricultural activities and activities related to agriculture and agricultural production, and for areas for natural resource extraction and energy development, without the interference of other, incompatible land uses. • The solar facility will not have any negative effects on the agricultural land beneath it. Pivot will seed the ground beneath the solar array with a native seed mixture that will help preserve the agricultural land. 23. Explain how this proposal will be compatible with future development of the surrounding area or adopted master plans of affected municipalities • The solar array will use native seed mixture that will help maintain high -quality soils for any future agricultural production following the life cycle of the array. • Please see the supplemental Decommissioning Plan document for additional information. 24. Explain how this proposal impacts the protection of tine health, safety and welfare of tne inhabitants of the neighborhood and the County • The proposed solar array will meet the health, safety, and welfare goals of the County because the array will not produce any odors or fumes. The solar array will help produce clean, long-term energy for the County, therefore meeting the goals of maintaining a healthy society. 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. • No irrigation features are being proposed in the scope of this project. pivotenergy.net Pivot sj energy Pivot Energy Inc. — Planning Questionnaire 26. Explain how this proposal complies with Article V and Article XI 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. • A small portion of the southwest edge of the property is in an Airport Overlay Zoning District. The project will not exceed any height limitations, will not have any onsite lighting, will not create any visual impairment, will not create any electrical interference, and will not create additional bird strike hazard. 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. • There are no State or Federal permits associated with the project besides state electrical permit and state SWPP, which will be complete prior to submission of building permit. pivotenergy.net Pivot sj energy Pivot Energy Inc. — Environmental Health Questionnaire 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 b" • Not applicable; however, bottled water will be provided during construction, as necessary. 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.) • No septic or sewage disposal is proposed to be on site. Portable toilets will be provided during construction, as necessary. 3. If storage Of warehouser ig is proposed, what type of items will be stored? • No storage or warehousing is proposed to be on site. 4. Describe where and how storage and/or stockpile of wastes, chemicals, and/or petroleum will occur on the site • No storage and/or stockpile of wastes, chemicals, or petroleum will take place onsite. 5. If there will be fuel storage on site, indicate the galloe is and the secondary containment. State the number of tanks and gallons per tank. • There will not be any fuel storage on site. 6. If there wily be washing of venicles or equipment on site, indicate how the wash water will be contained. • No vehicle washing will take place. 7. If there will be floor drains, indicate how the fluids will be contained.. • No floor drains will be built. The site will contain its runoff. The panels do not increase the impervious surface of the site. 8. Indicate if mere will be any air emissions • The solar array will not release any air emissions. 9. Provide a design and operations plan if applicable. • N/A 10. Provide a nuisance management plan if applicable. • N/A 11. Additional information may be requested depending on type of land use requested. • Noted. pivotenergy.net Pivot Energy Pivot Energy Inc. — Development Review Questionnaire 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 will be if proposed) from an intersecting county road. State that no existing access is present or that n0 new access is proposed, if applicable • The access to Pivot Solar 59 LLC, c/o Pivot Energy Inc. ("Pivot") will come from CR 47. The entrance to the site will be on the southeast corner of the parcel via the existing site access for the existing homestead on the parcel. Access to the parcel will not come from any other areas. 2. Describe any anticipated change(s) to pn existing access, if applicable: • Proposed change will be to improve the existing access route to and from the site (between public ROW and lease area) with gravel aggregate to accommodate emergency services. 3. Desrrdbe in detail any existing or proposed access gate including its location: • An access gate will be located at the entrance of the fenced area. This access gate will be locked and not accessible by the public. This gate will be accessible to emergency vehicles and operators. 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 proposed access will be located off CR 47. This is located around 380 ft north of the intersection of CR47 and CR70. 5. Describe any difficulties seeing oncoming traffic from an existing access and any anticipated difficulties seeing oncoming traffic from a proposed accecc • There are no anticipated visual difficulties for oncoming traffic from our proposed access point. A glare study using, ForgeSolar, has determined that there are no significant glare concerns with the proposed project in the desired location. 6. Describe any horizontal curve (using terms like mild curve, shar curve, reverse curve, etc.) in the vicinity of an existing or proposed access. • Please reference traffic impact study included herein. 7. Describe the topography (using terms like fiat, slight hills, steep hills, etc.) of the road in the vicinity of an existing or proposed access. • The entire site and the point of access is overall generally flat. The topography of the full site slopes to the southeast (around 30 ft in elevation across 1,500 feet) and the point of access topography varies by a few feet on average overall. pivotenergy.net Pivot sj energy Pivot Energy Inc. — Additional Miscellaneous Questions The following questions provide additional context about our proposed project. These questions were noted in our completeness review for a separate project. 1. What is the `Reservation Letter'? • This is a proxy for the interconnection letter (which is still in process). We are using this to demonstrate that Xcel Energy has awarded the project to Pivot. We are providing a Level II Study from Xcel as the "Reservation Letter". 2. Provide a Utility Company Interconnection Agreement • This is in process. Level II Study attached in lieu. 3. How Many Solar Panels Will There Be on the Site? • 13,500 4. What Equipment Will Be on the Site During Construction? Construction Trailers? Cargo Containers? • Job trailer (unlikely but dependent on contactor preference) • Telehandler (1) • Skidsteer (1-2) • Mini excavator (1) • Pile Drivers (1-2) 5. What is the Lighting Plan? Will There Be Lightning on the Site During Construction? • There will be no onsite lighting. 6. Address How the Cables Will Be Underground, Per Section 23-4-1030.C5. • DC circuits will be mostly in above ground CAB which typically is 42" above grade (minimum). Our low voltage AC circuits will all be buried but, as of now, our plan is to have our medium voltage (12.47kV) interconnection equipment on overhead poles. pivotenergy.net in Pivot Energy Pivot Energy Inc. - Alternatives Statement Pivot has researched alternatives to the proposed location, and it has been adequately assessed that the proposed site is the best location for the solar facility. Many other sites in Weld County have been assessed, as well as other locations throughout the state of Colorado. The Sunlight Farm site was chosen due to some of the following important factors: - The site's proximity to Xcel Energy distribution infrastructure - Flat topography - No geotechnical constraints noted on the site (as of now). A geotechnical study and report are currently in progress - Landowner interest and participation to host a solar facility on their land. - Xcel has awarded this parcel with solar energy generation, which must live with the parcel and cannot be relocated or reallocated. pivotenergy.net Pivot J Energy Pivot Energy Inc. — Construction Impacts 1. Haul route map showing a minimum of one (1) mile traveled road and must include a connection to a paved, publicly-mninthinerl ronrl. • Please see site plan in packet. 2. Agreement to mitigate construction traffic impacts to the area surrounding the proposed SEF. • Applicant agrees to mitigate construction impacts. 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. • During construction, crews will be on -site from approximately 7:00 am - 6:00 pm Monday -Friday. Most vehicles will arrive early in the morning (7:00 to 9:00 am) and will begin departing the construction site around 3:00 pm. • Once constructed, the site will be unmanned but the solar farm will generate electricity during daylight hours each day of the year. • Operations and maintenance crews will be on -site up to eight times annually for up to four hours per visit. • Please reference the Vehicle Trip Generation Table Below. Table 1 — Vehicle Trip Generation Project (Time Phase Period) Vehicle Type Estimated vehicle Gross Weight Number of Vehicles Per Day Maximum Vehicle and Trips Average Per Day Site (approx. Preparation 1-3 weeks) Equipment Trucks Hauling 30,000-05,000 lbs 0-2 0-4 Passenger Vehicles 2,000-10,000 lbs 2-5 4-10 Fuel Delivery .20,000=30,00 lbs 1 2 Max — 16/Ave - S Material and DdFvery (approx. 4-5 Equipment weeks) Conex Container Delivery Trucks and 30,000-50,000 lbs 10-30 20-60 Equipment Hauling Trucks 20,000-40,000 On 0-8 0-16 Max-79/Ave -40 Solar facility Installation (6=7 months) Passenger Vehicles 2,000 to 10,000 lbs 20.30 40 6 0 Fuel Truck 20,090 to 30.000 lbs 1 Material Delivery Truck 20.000 to 30,000 lbs `l . Max— Ave 62 Operations oncjoing once operational) Utility Vehicle 2,000 to 10,000 lbs 1 per month or less Max -►v - pivotenergy.net Pivot sj energy Pivot Energy Inc. — Construction Impacts 4. Describe the potential construction impact on roads within the County. • Please reference Vehicle Trip Generation Table above. • Some additional traffic should be expected for the time during construction due to the arrival of equipment and modules. 5. Identify improvements required to any roads within the County in order to serve the project adequately. • Proposed change will be to improve the existing access route to and from the site (between public ROW and lease area) with gravel aggregate to accommodate emergency services. pivotenergy.net ire 4 Pivot itmr Energy Pivot Energy Inc. — Decommissioning Plan Weld County requires that Pivot Solar 59 LLC, c/o Pivot Energy Inc. ("Pivot") submit a Decommissioning plan to the Department of Planning Services as part of the final administrative review and approval process for a Solar Generation facility. The decommissioning costs will total approximately $112,500. The useful life of the solar facility is expected to be at least 20 -years. At the end of the project's useful life, Pivot will suspend operations and decommission the plant, which will include any necessary demolition, removal of above and below ground equipment, and site reclamation efforts. Pivot's obligation under the Solar Lease Agreement is to return the site to the landowner in substantially the same condition that the property was in prior to the improvements being made. This document establishes a detailed plan for decommissioning and reclamation activities once the project reaches the end of its useful life. The proposed activities will likely need to be refined throughout the project's life to reflect future best practices of the solar industry. Pivot has assumed the planning process will be initiated one to two years prior to the anticipated end of commercial operation. The final plans will be developed in consultation with Weld County and any other applicable agencies that have jurisdiction of activities in the decommissioning process. 1. Decommissioning Project Elements and Milestones The key tasks of project decommissioning are divided into related activities that represent milestones in the process. Each activity is described in further detail below. The decommissioning schedule reflects the conceptual timing of the milestones and overall process. The individual project components to be decommissioned will either be 1) recycled or reused to the maximum extent practicable, or 2) removed from the site and disposed of at an appropriately licensed disposal facility. The general decommissioning approach will be the same whether a portion of, or the entire Project is decommissioned. The activities involved in the facility closure will depend on the expected future use of the site. Certain facility equipment and features may be left in place at the property owner's request, such as transmission facilities, roads, and drainage features. At the time of decommissioning, a plan will be submitted to the County proposing the equipment that will be removed and, if applicable, equipment that will remain, based on expected future use of the site. Pre -closure activities include final closure and reclamation planning, which identifies measures to be taken to restore the site to near pre -construction conditions. This includes but is not limited to the following: • Complete an analysis of the project materials and their composition to identify those specific components that may be recycled, re -used, scrapped, or sent to disposal sites; as well as identifying specific recycling facilities and disposal sites for materials. • Coordinate with local officials to obtain permits and develop plans for the transportation of materials and equipment to and from the site. • Develop specifications for demolition and reclamation, which will serve as the basis for contractor bids for decommissioning the project and establish the scope of demolition and reclamation, including developing reclamation plans in compliance with local, state, and federal regulations. pivotenergy.net ire 4 Pivot itmr Energy Pivot Energy Inc. — Decommissioning Plan During the planning process Pivot will brief the County and other applicable agencies on the decommissioning process and plans. All necessary permits and approvals required for the decommissioning will be obtained prior to commencing operations. The first step in the decommissioning process will be assessing existing site conditions and preparing the site for demolition. Site decommissioning and equipment removal is expected to take up to one year. Therefore, access roads, fencing, some electrical power, and other facilities will temporarily remain in place for use by the decommissioning workers until no longer needed. Demolition debris will be placed in temporary onsite storage areas pending final transportation and disposal and/or recycling according to the procedures listed below. A plan will be implemented for de -energizing portions of the facility to allow safe decommissioning and formal lock out and tag out procedures. This will ensure all electrical components are placed and maintained in a safe condition for demolition activities prior to the start of work. PV Module and Tracker Removal and Recycling During decommissioning, project components that are no longer needed will be removed from the site and recycled, reused or disposed of at an appropriately licensed disposal facility. The first operation is to disconnect and remove modules from the tracker assemblies. Next, the tracker and mounting structures, DC wiring materials, and combiner boxes will all be assembled and segregated for disposal or salvage. Steel piles that support the PV racking system will be removed and either re- used or recycled to the maximum amount possible. Below ground portions of the supports will either be removed or cut off at least two feet below ground surface and left in place. The demolition debris and removed equipment will be safely removed from the premises and transported to an appropriately licensed disposal facility or recycling center. Photovoltaic modules will either be re -used, recycled or disposed of in accordance with applicable laws at the time of decommissioning. Roads Onsite access roads will remain in place during the decommissioning process. The roads may remain intact after decommissioning if the property owner deems them beneficial for the future use of the site. Roads that will not be used after the solar project's decommissioning will be removed at the end of the process. Fencing Project site perimeter fencing will be removed at the end of the decommissioning project, unless it may be utilized for future use of the site and the property owner requests the fence remain in place. This includes the removal of all posts, fencing material, gates, etc. to return the site to pre -project condition. Transportation and Clean up During the disassembly and demolition process, materials will be segregated and temporarily placed in gathering areas for transportation. Various materials including, but not limited to, concrete, steel, aluminum, and copper will be temporarily stockpiled at or near a designated processing location pending transport to an appropriate offsite recycling facility. All such materials will then be transported from the site to approved designated facilities for recycling, scrapping or disposal. All metals will be recycled to the extent practical given the recycling options available at the time of decommissioning. pivotenergy.net ire 4 Pivot itmr Energy Pivot Energy Inc. — Decommissioning Plan In general, the decommissioning will be undertaken using traditional heavy construction equipment including, but not limited to, front end loaders, cranes, track mounted and rubber -tired excavators, bull dozers, and scrapers. Areas where excavation is required will be backfilled with natural material and compacted. Any voids left from the removal of foundations will be backfilled with surrounding subsoil and topsoil and fine graded to ensure suitable drainage and reclamation of natural grades. Soil management and re -contouring operations will be conducted to minimize the surface area disturbance and implement the activities in the safest and most efficient manner and in accordance with applicable local requirements. Major earthwork is not anticipated as construction of the site will not alter the general grade across the site. To account for post -decommissioning dust control, areas of exposed soils will be revegetated, consistent with the expected future use of the site and State or County requirements. The native dry grass vegetation will be re- established to prevent the spread of weeds. Mulching or palliatives may be used for temporary dust control until vegetation is established. Monitoring Site Restoration Upon completion of the decommissioning process, a one-year restoration monitoring period will begin. Monitoring will ensure that grading and drainage implemented is successful in stabilizing water flow patterns and that the cover vegetation (native dry grass vegetation or other depending on land use) will be reestablished to prevent the spread of weeds. Corrective actions will be implemented if such monitoring determines adverse conditions are present because of an inadequate restoration. Z. Decommissioning/ Reclamation Cost Estimates Pivot commits to working together with the County to update the cost estimates every five years from the establishment and submittal of the security bond. The cost estimates will include all costs associated with the dismantling, recycling, and safe disposal of facility parts and site reclamation activates and consider the salvage value of the facility. Initial cost estimate (2023): Fencing $3,375 Structures $46,125 Modules $33,750 Electrical $16,875 Site Restoration $12,375 Total $112,500 The scope includes: • Electrical permit fees • Removal and disposal of wildlife -friendly game fence • Removal of racking and foundations pivotenergy.net ire 4 Pivot itmr Energy Pivot Energy Inc. — Decommissioning Plan • Removal of modules • Removal of electrical equipment (transformers, pads, etc.) • Removal of electrical DC string wiring and AC underground wiring • Site restoration and reclamation • Waste disposal fees • Temporary restrooms and necessary facilities for workers • Safety and protection equipment pivotenergy.net Pivot sj energy Pivot Energy Inc. — Development Standards Statement The statement shall demonstrate how the proposed facility complies with the following development standards for Solar Energy Facilities: 1. Height limitation • The ground -mounted solar facility will not exceed 25 feet in height, as measured from the highest grade below each solar panel to the highest extent of the solar panel rotation. 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. • A glare study using ForgeSolar has determined that there are no significant glare concerns with the proposed project in the desired location. 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. • Pivot acknowledges the Agricultural zone requirements. For the residences within 500 feet of the improved area, per County ordinance 23-4-1030-C-3, Pivot shall seek to reduce the setback via screening and/or signed waiver of informed consent by the residence owners. 4. Dust mitigation. The operators shall continuously employ the practices for control of fugitive dust detailed in their dust mitigation plan suhmittedl 2s required h" Subcertinn f„? • Please see the attached Dust and Weed Mitigation Plan that lays out the employment of practices for control of fugitive dust. 5. Dust 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) • Our DC circuits will be mostly in above ground CAB which typically is 42" above grade (minimum). Our low voltage AC circuits will all be buried but, as of now, our plan is to have our medium voltage (12.47kV) interconnection equipment on overhead poles. 6. The Project 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 solar facility will be surrounded by an 8 -foot wildlife -friendly game fence. Please see the Landscape and Fencing plan for additional information. 7. Stormwater management. The Operator 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 (MS4) 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 pivotenergy.net Pivot sj energy Pivot Energy Inc. — Development Standards Statement Conservation Service (NRCS) • Please see the Drainage Report that has been submitted as part of the initial application for additional information. 8. Access permit. Prior to construction, 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. • If required, Pivot will apply for and obtain an Access Permit from Weld County Public Works prior to development. 9. Existing irrigation systems. The nature and location or expansion of the SEF must not unreasonably interfere with any irrigation systems on or adjacent to the solar facility. • The site is currently not irrigated. The proposed SEF will not unreasonably interfere with irrigation. pivotenergy.net Pivot %4k Energy Pivot Energy Inc. — Dust Mitigation Plan Stormwater best management practices will be followed to mitigate dust and debris during the construction process. Construction staff are responsible for dust control and will determine which of the following methods are needed to accommodate the specific site and weather conditions: • Sprinkling/irrigation- Sprinkle ground surface with water to moisten the area and control dust. Extra watering may be considered for haul roads and other traffic routes. • Vegetative cover- Vegetative cover may be used in areas where construction staff do not designate for vehicle traffic. Vegetative cover can help reduce wind velocity at the ground surface, therefore reducing dust accumulation. • Mulch- The use of mulch may be used as a useful dust control method for a recently disturbed area. • Wind breaks- Wind break barriers might be used to reduce the intensity of the wind throughout the site. • Stone- Stone may be used atop portions of the site to reduce the amount of dust that will be kicked up into the air. pivotenergy.net ENERTIA CONSULTING GROUP LLC June 24, 2024 Weld County Planning and Building Department 1555 N 17th Ave Greeley, CO 80631 RE: Drainage Narrative Pivot Solar Energy Solar Facility on the Eifert Parcel 34101 County Road 47, Weld County To whom it may concern: 1515 Market Street Denver, CO 80202 (609) 234-5502 rick.hagmayer@enertiacg.com This drainage narrative is intended to provide Weld County with drainage and land disturbance information related to a proposed 25.849 acre solar facility identified as Pivot Energy Solar Facility on the Eifert Parcel (Project). The Project will be designed and will be constructed and maintained in a manner that minimizes storm water related impacts, in accordance with 2020 Weld County Engineering and Construction criteria. P roject Specific Information P roject Name, Property Address and Weld County Parcel No. P ivot Energy Solar Facility on the Eifert Parcel, Parcel No. 80311000028 Developer/Owner P ivot Energy, 1750 15th Street, Suite 400, Denver, CO 80202 P ite/Civil Engineer Enertia Consulting Group, LLC, 1515 Market Street, Denver, CO 80202 P roject Location and Description The Project will consist of up to an approximately 5 MW solar facility located on approximately 25.849 acres of undeveloped land within an approximately 32.12 acre parcel; and within Southeast 1/4 of Section 11, Township 6 North, Range 65 West of the 6th P.M., Weld County, Colorado. The Project site is bounded by WCR 47 to the east, and agricultural land to the south, west, and north. P roject components include: up to a 5 MW solar facility with approximately 5500 solar panels mounted on steel H -piles; concrete equipment pads; 20' gravel access driveway with emergency turn -around; and perimeter fence with access gate. With the exception of a gravel driveway and concrete pads for transformers and inverters, the remainder of the solar facility will not require clearing/grubbing of existing vegetation and grading unless required to prevent shading of the solar array. Weld County Planning and Building Department Page 2 of 5 Land Disturbance and Drainage Information Existing Ground Surface Conditions, Drainage Patterns and Imperviousness The 25.849 acre solar facility project area may be characterized as undeveloped agricultural land. The applicable FIRM Map (No. 08123C1575E), included in Appendix A, indicates that the Project site is located in a Zone X floodplain which is an area of minimal flood hazard. Based on NRCS soils data (also included in Appendix A), the site soils are identified as Sandy Loam classified as Hydrologic Soil Group C. As shown on Figure 1 in Appendix A, the site ground surface generally slopes at an average of 1-3 percent from west to east of the Project site. In general, storm water is conveyed across the Project area toward the southeast corner. Land Disturbance Activities The site improvements considered as land disturbance activities include installation of: (i) all-weather gravel surface driveway, (ii) concrete equipment pads, and (iii) Class VI equipment pads: Gravel Access Drive — One all-weather gravel surface access drives will extend from existing WCR 47. Given the site soils, a 12 -inch -thick gravel Class VI base surface (consistent with similar solar facility access drives within Weld County) is proposed. This depth of gravel over compacted subgrade is sufficient to provide routine and emergency access to the Project. (ii) Concrete Equipment Pads — Concrete equipment pads will be installed beneath inverters and transformers and other electrical equipment as required with the development. The pads will be at least 8 -inches thick with reinforcing steel. (iii) Class VI Equipment Pads — Class VI road base equipment pads will be installed beneath other electrical equipment as required with the development. The pads will be at least 12 - inches thick over compacted subgrade. Lastly, components of the 25.849 acre solar facility will include up to 5500 solar panels placed on steel H -piles driven into the ground. Since the solar panels will be tracking panels (rotate through the day to track the path of the sun), the ground surface vegetation beneath the panels will continue to grow. Some minimal grubbing may be necessary to prepare the site with planned native seed mixes. Onsite conditions at the time of seeding will dictate necessity of such methods. The purpose of the seeding is to increase the density of native vegetation; therefore, the grubbing is not considered land disturbance (if it is necessary). Since the layout is unknown at this time, an approximation of anticipated imperviousness from the access drive has been assumed. Land Disturbance Area A total of approximately 6415 sf or 0.15 acres of the Project area is anticipated to be disturbed. The total disturbance numbers are summed in the following table. Disturbance Surface Type Disturbance Area (sf) Disturbance Area (ac) Gravel Access Drive 4,855 0.111 Concrete Equipment Pads 600 0.014 Class VI Equipment Pads 960 0.022 Total 16,415 10.147 Weld County Planning and Building Department Page 3 of 5 Hydrologic Design Criteria The following table includes hydrologic design criteria used in this analysis. Parameter Ivalue I Unit I Reference Time of Concentration, Tc - min. MHFD Rational Peak Method Runoff (Appendix Prediction by the A) Runoff Coefficient, C MHFD Table Criteria 6-4 Manual, Chapter 6, 1 -hr Point Rainfall, P1 (100 -Year) 2.74 inches NOAA Rainfall Data (Appendix A) Storm Runoff, Q (100-YR) - cfs Q = CIA Basin Conditions The footprint of the solar facility and access drive along with the areas delineated by oil setbacks is considered to be the subject drainage area under both existing and proposed conditions. The existing condition basin (identified as basin X1 on Figure 1) was analyzed to calculate the peak runoff for the design storm using an imperviousness percentage of 2%. This percentage is based on the soil type and existing conditions of the site. The proposed condition basin (identified as basin Al on Figure 1) was analyzed to calculate the peak runoff for the design storm using an impervious percentage of 2.25%. This percentage is based on the majority of the site remaining as 2% impervious, 0.11 acres changing to 40% impervious (access drive area), 0.01 acres changing to 100% impervious (concrete pad area), and 0.02 acres changing to 40% impervious (Class VI pad area). It should be noted that the tracking solar panels are not classified as ground surface because precipitation falling on the solar panels will shed onto the undisturbed vegetated surface below. Stormwater Runoff The stormwater runoff for existing and proposed conditions is calculated based on the Rational Method. The 100 -year, 1 -hour storm event was analyzed for basins Al and X1. The flow path for the basins is generally from west to east on the Project site. The average ground surface slope along the flow path is 2.22%. The time of concentration to this point was calculated using MHFD equations are summarized below and can be found on the MHFD Peak Runoff Prediction by the Rational Method form in Appendix A. The Runoff Coefficients are also included in the MHFD Peak Runoff Prediction by the Rational Method and are summarized below. Basin Time Concentration (min) Runoff Coefficients (C100) of X1 47.88 0.49 Al 47.77 0.49 The precipitation data used for the 100 -year, 1 -hour storm event is based on NOAA rainfall data from the Project site and is included in Appendix A. Per the Basin Runoff Calculation (MHFD Peak Runoff Prediction by the Rational Method) included in Appendix A the 100 -year runoff flows are as follows: Basin Q100 (cfs) X1 40.91 Al 41.05 Net 0.14 Weld County Planning and Building Department Page 4of5 Under developed conditions, runoff will follow existing drainage patterns and will not significantly increase peak flows (increase from 40.91 cfs to 41.05 cfs). Detention Exemption It is understood solar facilities developed within Type C and/or Type D soils are exempt from the requirement to provide detention per Sec. 8-11-40 (I) if the total proposed impervious area is less than 9,000 sf. This solar project proposes 4855 sf of gravel drive at 40% impervious, 600 sf of concrete pads at 100% impervious, and 960 sf of Class VI pads at 40% impervious, for a composite impervious area of 2926 sf. Therefore the Site is exempt from the detention requirements. Summary The following list summarizes key components of the Project and findings related to land disturbance and storm water impacts. 1. Installation of the solar facility will temporarily disturb the ground surface within the 25.849 acre project area but won't require clearing and grubbing of vegetation or grading, except for concrete equipment pad and gravel access drive installation. 2. Grubbing may be required to provide appropriate conditions for seeding. It is intended for the vegetation throughout the site to be improved as a result, therefore is not considered land disturbance. 3. The areas considered impervious (600 SF of 100% impervious concrete pads) or semi - impervious (4855 SF of 40% impervious gravel access drive and 960 sf of 40 sf Class VI pads) total 0.15 acres, or 0.58% of the 25.849 acre solar facility area. 4. Under existing conditions, the peak flow originating from the solar facility area for the 100 yr — 1 hr storm event is 40.91 cfs. 5. Under developed conditions, the peak flow originating from the solar facility area for the 100 yr - 1 hr storm event is 41.05 cfs. The solar facility is located within Type C/D soils; therefore detention is not required if the total additional impervious area is less than 9,000 sf. 7. Since the land disturbance is less than 1 acre, a CDPS storm water certificate issued by CDPHE is not required for this Project. 8. Installation and operation of the solar facility is not expected to impact existing drainage patterns or flow rates on or around the Project site. Runoff water quality will not be impacted by the solar facility components. 9. The Project design will adequately protect public health, safety and general welfare and have no adverse effects on offsite properties. Weld County Planning and Building Department Page 5 of 5 We trust that the information provided is acceptable and complete. Please let me know if you have any questions or require additional information. Please contact me at rick.hagmayer@enertiacg.com or (609) 234-5502 should you require additional information. Sincerely, ENERTIA CONSULTING GROUP, LLC Rick Hagmayer, PE Senior Project Manager attachment 104°37'30" 40° 30' 00" eifi 4480000mN FT 1st CI' I�1 T,-rf ll� L 11 PANEL 1575E FIRM FLOOD INSURANCE RATE MAP WELD COUNTY, COLORADO AND INCORPORATED AREAS PANEL 1575 OF 2250 (SEE MAP INDEX FOR FIRM PANEL LAYOUT) CONTAINS: COMMUNITY NUMBER PANEL SUFFIX KERSEY, TOWN OF 083185 1575 E WELD COUNTY 087)266 1575 E Notice to User: The Map Number shown below should be used when placing map orders; the Community Number shown above should be used on insurance applications for the subject community. MAP NUMBER 08123C1575E EFFECTIVE DATE JANUARY 20, 2016 Federal Emergency- Management Agency This is an official FIRMette showing a portion of the above -referenced flood map created from the MSC FIRMette Web tool. This map does not reflect changes or amendments which may have been made subsequent to the date on the title block. For additional information about how to make sure the map is current, please see the Flood Hazard Mapping Updates Overview Fact Sheet available on the FEMA Flood Map Service Center home page at https://msc.fema.gov. USDA United States Department of Agriculture ACS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Weld County, Colorado, Southern Part September 5, 2023 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nrcs142p2_053951). 142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 Soil Map 5 Soil Map 6 Legend 7 Map Unit Legend 8 Map Unit Descriptions 8 Weld County, Colorado, Southern Part 10 51 Otero sandy loam, 1 to 3 percent slopes 10 64 Thedalund loam, 1 to 3 percent slopes 11 65 Thedalund loam, 3 to 9 percent slopes 12 References 14 4 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 5 4 a--1 _• .._-• y Custom Soil Resource Report MAP LEGEND Area of Interest (AO!) Area of Interest (AO1) Soils C Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout r, O 0 v •m 4 4 404 Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot a Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background iair°§1 Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI 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 -MRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 21, Sep 1, 2022 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jun 8, 2021 Jun 12, 2021 The orthophoto or other base map on which the soil lines were compiled 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. 7 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 51 Otero sandy loam, percent slopes 1 to 3 0.5 1.4% 64 Thedalund slopes loam, 1 to 3 percent 22.8 71.6% 65 Thedalund slopes loam, 3 to 9 percent 8.6 26.9% Totals for Area of Interest 31.9 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or 8 Custom Soil Resource Report landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 9 Custom Soil Resource Report Weld County, Colorado, Southern Part 51 Otero sandy loam, 1 to 3 percent slopes Map Unit Setting National map unit symbol: 3630 Elevation: 4,700 to 5,250 feet Mean annual precipitation: 12 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits and/or mixed outwash Typical profile H1 - 0 to 12 inches: sandy loam H2 - 12 to 60 inches: fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (non irrigated): 4e Hydrologic Soil Group: A Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 10 percent Hydric soil rating: No 10 Custom Soil Resource Report Vona Percent of map unit: 5 percent Hydric soil rating: No 64 Thedalund loam, 1 to 3 percent slopes Map Unit Setting National map unit symbol: 363g Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 160 days Farmland classification: Farmland of local importance Map Unit Composition Thedalund and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from shale Typical profile H1 - 0 to 8 inches: loam H2 - 8 to 29 inches: loam H3 - 29 to 33 inches: weathered bedrock Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 4.9 inches) Interpretive groups Land capability classification (irrigated): 4s Land capability classification (non irrigated): 4e Hydrologic Soil Group: C Custom Soil Resource Report Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Minor Components Ulm Percent of map unit: 10 percent Hydric soil rating: No 65 Thedalund loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 363h Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 160 days Farmland classification: Not prime farmland Map Unit Composition Thedalund and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from shale Typical profile HI - 0 to 8 inches: loam H2 - 8 to 29 inches: loam H3 - 29 to 33 inches: weathered bedrock Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 4.9 inches) Custom Soil Resource Report Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: C Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Minor Components Ulm Percent of map unit: 7 Hydric soil rating: No Terry Percent of map unit: 6 Hydric soil rating: No Renohill Percent of map unit: 6 Hydric soil rating: No Otero Percent of map unit: 1 Hydric soil rating: No percent percent percent percent References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. N ational Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U .S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/portal/ nres/detai I/national/soils/?cid=nres 142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=n res142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=n res142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. U nited States Department of Agriculture, Natural Resources Conservation Service. N ational forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nrcs142p2_053374 p2_053374 U nited States Department of Agriculture, Natural Resources Conservation Service. N ational range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepastu re/?cid=stelprdb 1043084 14 Custom Soil Resource Report U nited States Department of Agriculture, Natural Resources Conservation Service. N ational soil survey handbook, title 430 -VI. http://www.nrcs.usda.gov/wps/portal/ nres/detai I/soils/scientists/?cid=nres 142p2 054242 U nited States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid=nrcs142p2_053624 U nited States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nres.usda.gov/Internet/FSE_DOCUMENTS/nres142p2_052290.pdf 15 Calculation of Peak Runoff using Rational Method Designer: TAN Company: ENERTIA Date: 6/24/2024 Project: PIVOT 59 - EIFERT Location: WELD COUNTY Version 2.00 released May 2017 Cells of this color are for required user -input Cells of this color are for optional override values Cells of this color are for calculated results based on overrides 0.395(1.1 CS) L S0.33 _ Lt _ Lt tt 60K St 60Vt Computed t, = ti + tt Regional t, _ (26 — 171) + Lt 60(14i + 9)ti, St tminimum= 5 (urban) tminimum= 10 (non -urban) Selected tt = max{tminimum, min(Computed tt , Regional tt)} Select UDFCD location for I ':OAA Atlas 14 Rainfall Depths from the pulldown list OR enter your own depths obtained from the NOAA website (click this link) 1 -hour rainfall depth, P1 (in)= Rainfall Intensity Equation Coefficients = 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr 0.85 1.12 1.40 a b c 28.50 10.00 0.786 1.86 2.27 2.74 I(in/hr) — {b + tt)t a* Pi 4.04 Q{cfs) = CIA Subcatchment Name Area (ac) NRCS Hydrologic Soil Group Percent Imperviousness Runoff Coefficient, C Overland (Initial) Flow Time Channelized (Travel) Flow Time Time of Concentration Rainfall Intensity, I (in/hr) Peak Flow, Q cfs) 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr Overland Flow Length L, (ft) U/S Elevation (ft) (Optional) D/S Elevation (ft) (Optional) Overland Flow Slope Si (ft/ft) Overland Flow Time ti (min) Channelized Flow Length Lt (ft) U/S Elevation (ft) ,i ;cui_;1. D/S Elevation (ft) { pttonall l Channelized Flow Slope St (ft/ft) NRCS Conveyance Factor K Channelized Flow Velocity Vt (ft/sec) Channelized Flow Time tt (min) Computed te(min) Regional tc(min) Selected to(min) 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr Al 25.85 C 2.23 0.01 0.05 0A5 0.33 0.40 0.49 0.60 500 0.028 30.09 1750 0.020 5 0.71 41.25 71.34 47.77 47.77 1.00 1.32 1.65 2.19 2.67 3.22 4.75 0.30 1.81 6.31 18.73 27.86 41.05 73.03 X1 25.85 C 2.00 0.01 0.05 0.15 0.33 0.40 0.49 0.59 500 0.028 30.14 1750 0.020 5 0.71 41.25 71.39 47.88 47.88 1.00 1.31 1.64 2.18 2.66 3.22 4.74 0.27 1.74 6.23 18.63 27.74 40.91 72.83 n r /hc, m X11 LI 70 I N L 47 Mffl EiTim _ ■ PIVOT SOLAR PROJECT EIFERT PARCEL 71 II 1 LIENERTIA CONSULTING GROUP LLC 1515 MARKET STREET DENVER, CO 80202 (720) 250-8305 FIGURE 1 - VICINITY MAP PIVOT ENERGY SOLAR FARM ON EIFERT PARCEL WELD COUNTY, COLORADO DATE: 10/16/2023 SCALE: 1" = 5,000' BY: TN ENERTIA CONSULTING GROUP LLC October 17, 2023 Weld County Planning and Building Department 1555 N 17th Ave Greeley, CO 80631 RE: Drainage Narrative Pivot Solar Energy Solar Facility on the Eifert Parcel 34101 County Road 47, Weld County To whom it may concern: 1515 Market Street Denver, CO 80202 (609) 234-5502 rick.hagmayer@enertiacg.com This drainage narrative is intended to provide Weld County with drainage and land disturbance information related to a proposed 26.83 acre solar facility identified as Pivot Energy Solar Facility on the Eifert Parcel (Project). The Project will be designed and will be constructed and maintained in a manner that minimizes storm water related impacts, in accordance with 2020 Weld County Engineering and Construction criteria. P roject Specific Information P roject Name, Property Address and Weld County Parcel No. P ivot Energy Solar Facility on the Eifert Parcel, Parcel No. 80311000028 Developer/Owner P ivot Energy, 1750 15th Street, Suite 400, Denver, CO 80202 P ite/Civil Engineer Enertia Consulting Group, LLC, 1515 Market Street, Denver, CO 80202 P roject Location and Description The Project will consist of up to an approximately 10 MW solar facility located on approximately 26.83 acres of undeveloped land within an approximately 32.12 acre parcel; and within Southeast 1/4 of Section 11, Township 6 North, Range 65 West of the 6th P.M., Weld County, Colorado. The Project site is bounded by WCR 47 to the east, and agricultural land to the south, west, and north. P roject components include: up to a 10 MW solar facility with approximately 11000 solar panels mounted on steel H -piles; concrete equipment pads; 20' gravel access driveway with emergency turn- around; and perimeter fence with access gate. With the exception of a gravel driveway and concrete pads for transformers and inverters, the remainder of the solar facility will not require clearing/grubbing of existing vegetation and grading unless required to prevent shading of the solar array. Weld County Planning and Building Department Page 2 of 5 Land Disturbance and Drainage Information Existing Ground Surface Conditions, Drainage Patterns and Imperviousness The 26.83 acre solar facility project area may be characterized as undeveloped agricultural land. The applicable FIRM Map (No. 08123C1575E), included in Appendix A, indicates that the Project site is located in a Zone X floodplain which is an area of minimal flood hazard. Based on NRCS soils data (also included in Appendix A), the site soils are identified as Sandy Loam classified as Hydrologic Soil Group C. As shown on Figure 1 in Appendix A, the site ground surface generally slopes at an average of 1-3 percent from west to east of the Project site. In general, storm water is conveyed across the Project area toward the southeast corner. Land Disturbance Activities The site improvements considered as land disturbance activities include installation of: (i) all-weather gravel surface driveway, (ii) concrete equipment pads, and (iii) Class VI equipment pads: Gravel Access Drive — One all-weather gravel surface access drives will extend from existing WCR 47. Given the site soils, a 12 -inch -thick gravel Class VI base surface (consistent with similar solar facility access drives within Weld County) is proposed. This depth of gravel over compacted subgrade is sufficient to provide routine and emergency access to the Project. (ii) Concrete Equipment Pads — Concrete equipment pads will be installed beneath inverters and transformers and other electrical equipment as required with the development. The pads will be at least 8 -inches thick with reinforcing steel. (iii) Class VI Equipment Pads — Class VI road base equipment pads will be installed beneath other electrical equipment as required with the development. The pads will be at least 12 - inches thick over compacted subgrade. Lastly, components of the 26.83 acre solar facility will include up to 11000 solar panels placed on steel H -piles driven into the ground. Since the solar panels will be tracking panels (rotate through the day to track the path of the sun), the ground surface vegetation beneath the panels will continue to grow. Some minimal grubbing may be necessary to prepare the site with planned native seed mixes. Onsite conditions at the time of seeding will dictate necessity of such methods. The purpose of the seeding is to increase the density of native vegetation; therefore, the grubbing is not considered land disturbance (if it is necessary). Since the layout is unknown at this time, an approximation of anticipated imperviousness from the access drive has been assumed. Land Disturbance Area A total of approximately 9594 sf or 0.22 acres of the Project area is anticipated to be disturbed. The total disturbance numbers are summed in the following table. Disturbance Surface Type Disturbance Area (sf) Disturbance Area (ac) Gravel Access Drive 8,034 0.184 Concrete Equipment Pads 600 0.014 Class VI Equipment Pads 960 0.022 Total 19,594 10.220 Weld County Planning and Building Department Page 3 of 5 Hydrologic Design Criteria The following table includes hydrologic design criteria used in this analysis. Parameter Ivalue I Unit I Reference Time of Concentration, Tc - min. MHFD Rational Peak Method Runoff (Appendix Prediction by the A) Runoff Coefficient, C MHFD Table Criteria 6-4 Manual, Chapter 6, 1 -hr Point Rainfall, P1 (100 -Year) 2.74 inches NOAA Rainfall Data (Appendix A) Storm Runoff, Q (100-YR) - cfs Q = CIA Basin Conditions The footprint of the solar facility and access drive along with the areas delineated by oil setbacks is considered to be the subject drainage area under both existing and proposed conditions. The existing condition basin (identified as basin X1 on Figure 1) was analyzed to calculate the peak runoff for the design storm using an imperviousness percentage of 2%. This percentage is based on the soil type and existing conditions of the site. The proposed condition basin (identified as basin Al on Figure 1) was analyzed to calculate the peak runoff for the design storm using an impervious percentage of 2.34%. This percentage is based on the majority of the site remaining as 2% impervious, 0.18 acres changing to 40% impervious (access drive area), 0.01 acres changing to 100% impervious (concrete pad area), and 0.02 acres changing to 40% impervious (Class VI pad area). It should be noted that the tracking solar panels are not classified as ground surface because precipitation falling on the solar panels will shed onto the undisturbed vegetated surface below. Stormwater Runoff The stormwater runoff for existing and proposed conditions is calculated based on the Rational Method. The 100 -year, 1 -hour storm event was analyzed for basins Al and X1. The flow path for the basins is generally from west to east on the Project site. The average ground surface slope along the flow path is 2.22%. The time of concentration to this point was calculated using MHFD equations are summarized below and can be found on the MHFD Peak Runoff Prediction by the Rational Method form in Appendix A. The Runoff Coefficients are also included in the MHFD Peak Runoff Prediction by the Rational Method and are summarized below. Basin Time of Concentration (min) Runoff Coefficients (C100) X1 47.88 0.49 Al 47.71 0.49 The precipitation data used for the 100 -year, 1 -hour storm event is based on NOAA rainfall data from the Project site and is included in Appendix A. Per the Basin Runoff Calculation (MHFD Peak Runoff Prediction by the Rational Method) included in Appendix A the 100 -year runoff flows are as follows: Basin Q100 (cfs) X1 42.46 Al 42.68 Net 0.22 Weld County Planning and Building Department Page 4of5 Under developed conditions, runoff will follow existing drainage patterns and will not significantly increase peak flows (increase from 42.46 cfs to 42.68 cfs). Detention Exemption It is understood solar facilities developed within Type C and/or Type D soils are exempt from the requirement to provide detention per Sec. 8-11-40 (I) if the total proposed impervious area is less than 4,500 sf. This solar project proposes 8034 sf of gravel drive at 40% impervious, 600 sf of concrete pads at 100% impervious, and 960 sf of Class VI pads at 40% impervious, for a composite impervious area of 4198 sf. Therefore the Site is exempt from the detention requirements. Summary The following list summarizes key components of the Project and findings related to land disturbance and storm water impacts. 1. Installation of the solar facility will temporarily disturb the ground surface within the 26.83 acre project area but won't require clearing and grubbing of vegetation or grading, except for concrete equipment pad and gravel access drive installation. 2. Grubbing may be required to provide appropriate conditions for seeding. It is intended for the vegetation throughout the site to be improved as a result, therefore is not considered land disturbance. 3. The areas considered impervious (600 SF of 100% impervious concrete pads) or semi - impervious (8034 SF of 40% impervious gravel access drive and 960 sf of 40 sf Class VI pads) total 0.22 acres, or 0.82% of the 26.83 acre solar facility area. 4. Under existing conditions, the peak flow originating from the solar facility area for the 100 yr — 1 hr storm event is 42.46 cfs. 5. Under developed conditions, the peak flow originating from the solar facility area for the 100 yr - 1 hr storm event is 42.68 cfs. The solar facility is located within Type C/D soils; therefore detention is not required if the total additional impervious area is less than 4,500 sf. 7. Since the land disturbance is less than 1 acre, a CDPS storm water certificate issued by CDPHE is not required for this Project. 8. Installation and operation of the solar facility is not expected to impact existing drainage patterns or flow rates on or around the Project site. Runoff water quality will not be impacted by the solar facility components. 9. The Project design will adequately protect public health, safety and general welfare and have no adverse effects on offsite properties. Weld County Planning and Building Department Page 5 of 5 We trust that the information provided is acceptable and complete. Please let me know if you have any questions or require additional information. Please contact me at rick.hagmayer@enertiacg.com or (609) 234-5502 should you require additional information. Sine. rl rA It E ; GROUP, LLC S attachment 104°37'30" 40° 30' 00" eifi 4480000mN FT 1st CI' I�1 T,-rf ll� L 11 PANEL 1575E FIRM FLOOD INSURANCE RATE MAP WELD COUNTY, COLORADO AND INCORPORATED AREAS PANEL 1575 OF 2250 (SEE MAP INDEX FOR FIRM PANEL LAYOUT) CONTAINS: COMMUNITY NUMBER PANEL SUFFIX KERSEY, TOWN OF 083185 1575 E WELD COUNTY 087)266 1575 E Notice to User: The Map Number shown below should be used when placing map orders; the Community Number shown above should be used on insurance applications for the subject community. MAP NUMBER 08123C1575E EFFECTIVE DATE JANUARY 20, 2016 Federal Emergency- Management Agency This is an official FIRMette showing a portion of the above -referenced flood map created from the MSC FIRMette Web tool. This map does not reflect changes or amendments which may have been made subsequent to the date on the title block. For additional information about how to make sure the map is current, please see the Flood Hazard Mapping Updates Overview Fact Sheet available on the FEMA Flood Map Service Center home page at https://msc.fema.gov. USDA United States Department of Agriculture ACS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Weld County, Colorado, Southern Part September 5, 2023 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nrcs142p2_053951). 142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 Soil Map 5 Soil Map 6 Legend 7 Map Unit Legend 8 Map Unit Descriptions 8 Weld County, Colorado, Southern Part 10 51 Otero sandy loam, 1 to 3 percent slopes 10 64 Thedalund loam, 1 to 3 percent slopes 11 65 Thedalund loam, 3 to 9 percent slopes 12 References 14 4 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 5 4 a--1 _• .._-• y Custom Soil Resource Report MAP LEGEND Area of Interest (AO!) Area of Interest (AO1) Soils C Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout r, O 0 v •m 4 4 404 Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot a Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background iair°§1 Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI 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 -MRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 21, Sep 1, 2022 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jun 8, 2021 Jun 12, 2021 The orthophoto or other base map on which the soil lines were compiled 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. 7 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 51 Otero sandy loam, percent slopes 1 to 3 0.5 1.4% 64 Thedalund slopes loam, 1 to 3 percent 22.8 71.6% 65 Thedalund slopes loam, 3 to 9 percent 8.6 26.9% Totals for Area of Interest 31.9 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or 8 Custom Soil Resource Report landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 9 Custom Soil Resource Report Weld County, Colorado, Southern Part 51 Otero sandy loam, 1 to 3 percent slopes Map Unit Setting National map unit symbol: 3630 Elevation: 4,700 to 5,250 feet Mean annual precipitation: 12 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost -free period: 130 to 180 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Otero and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Otero Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Eolian deposits and/or mixed outwash Typical profile H1 - 0 to 12 inches: sandy loam H2 - 12 to 60 inches: fine sandy loam Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 7.7 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (non irrigated): 4e Hydrologic Soil Group: A Ecological site: R067BY024CO - Sandy Plains Hydric soil rating: No Minor Components Kim Percent of map unit: 10 percent Hydric soil rating: No 10 Custom Soil Resource Report Vona Percent of map unit: 5 percent Hydric soil rating: No 64 Thedalund loam, 1 to 3 percent slopes Map Unit Setting National map unit symbol: 363g Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 160 days Farmland classification: Farmland of local importance Map Unit Composition Thedalund and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from shale Typical profile H1 - 0 to 8 inches: loam H2 - 8 to 29 inches: loam H3 - 29 to 33 inches: weathered bedrock Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 4.9 inches) Interpretive groups Land capability classification (irrigated): 4s Land capability classification (non irrigated): 4e Hydrologic Soil Group: C Custom Soil Resource Report Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Minor Components Ulm Percent of map unit: 10 percent Hydric soil rating: No 65 Thedalund loam, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 363h Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 46 to 48 degrees F Frost -free period: 130 to 160 days Farmland classification: Not prime farmland Map Unit Composition Thedalund and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Thedalund Setting Landform: Plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Residuum weathered from shale Typical profile HI - 0 to 8 inches: loam H2 - 8 to 29 inches: loam H3 - 29 to 33 inches: weathered bedrock Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high (0.06 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 4.9 inches) Custom Soil Resource Report Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: C Ecological site: R067BY002CO - Loamy Plains Hydric soil rating: No Minor Components Ulm Percent of map unit: 7 Hydric soil rating: No Terry Percent of map unit: 6 Hydric soil rating: No Renohill Percent of map unit: 6 Hydric soil rating: No Otero Percent of map unit: 1 Hydric soil rating: No percent percent percent percent References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. N ational Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U .S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/portal/ nres/detai I/national/soils/?cid=nres 142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=n res142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=n res142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. U nited States Department of Agriculture, Natural Resources Conservation Service. N ational forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nrcs142p2_053374 p2_053374 U nited States Department of Agriculture, Natural Resources Conservation Service. N ational range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepastu re/?cid=stelprdb 1043084 14 Custom Soil Resource Report U nited States Department of Agriculture, Natural Resources Conservation Service. N ational soil survey handbook, title 430 -VI. http://www.nrcs.usda.gov/wps/portal/ nres/detai I/soils/scientists/?cid=nres 142p2 054242 U nited States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid=nrcs142p2_053624 U nited States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nres.usda.gov/Internet/FSE_DOCUMENTS/nres142p2_052290.pdf 15 PEAK RUNOFF PREDICTION BY THE RATIONAL METHOD Version 2.00 released May 2017 Urban Drainage and Flood Control District Denver, Colorado Purpose: Function: Content: Intro Rational Calcs Weighted C Weighted Slope Weighted Tc Design Info Acknowledgements: Comments? Revisions? This workbook applies the Rational Method to estimate stormwater runoff and peak flows from small urban catchments (typically less than 90 acres) 1. To calculate the runoff coefficient, C for a catchment 2. To calculate the time of concentration, and then compare with the regional time of concentration limit used for the Denver region. The smaller one is recommended as the rainfall duration for use with the Rational Method. 3. To calculate the design rainfall intensity and resulting peak flow rate. The workbook consists of the following five sheets: Describes the purpose of each sheet in the workbook. Performs Rational Method calculations, Q = CIA Supporting tool to calculate area -weighted runoff coefficients from sub -areas. Supporting tool to calculate length -weighted slope from multiple flow reaches. Supporting tool to calculate reach -weighted time of concentration from multiple flow reaches. Provides background information from the USDCM Spreadsheet Development Team: Derek N. Rapp, P.E. Peak Stormwater Engineering, LLC Holly Piza, P.E. and Ken MacKenzie, P.E. Urban Drainage and Flood Control District Direct all comments regarding this spreadsheet workbook to: Check for revised versions of this or any other workbook at: UDFCD email Downloads 1 Calculation of Peak Runoff using Rational Method Designer: TAN Company: ENERTIA Date: 10/17/2023 Project: PIVOT 59 - EIFERT Location: WELD COUNTY Version 2.00 released May 2017 Cells of this color are for required user -input Cells of this color are for optional override values Cells of this color are for calculated results based on overrides 0.395(1.1 CS) L S0.33 _ Lt _ Lt tt 60K St 60Vt Computed t, = ti + tt Regional t, _ (26 — 171) + Lt 60(14i + 9)ti, St tminimum= 5 (urban) tminimum= 10 (non -urban) Selected tt = max{tminimum, min(Computed tt , Regional tt)} Select UDFCD location for I ':OAA Atlas 14 Rainfall Depths from the pulldown list OR enter your own depths obtained from the NOAA website (click this link) 1 -hour rainfall depth, P1 (in)= Rainfall Intensity Equation Coefficients = 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr 0.85 1.12 1.40 a b c 28.50 10.00 0.786 1.86 2.27 2.74 I(in/hr) — {b + tt)t a* Pi 4.04 Q{cfs) = CIA Subcatchment Name Area (ac) NRCS Hydrologic Soil Group Percent Imperviousness Runoff Coefficient, C Overland (Initial) Flow Time Channelized (Travel) Flow Time Time of Concentration Rainfall Intensity, I (in/hr) Peak Flow, Q cfs) 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr Overland Flow Length L, (ft) U/S Elevation (ft) (Optional) D/S Elevation (ft) (Optional) Overland Flow Slope Si (ft/ft) Overland Flow Time ti (min) Channelized Flow Length Lt (ft) U/S Elevation (ft) ,i ;cui_;1. D/S Elevation (ft) { pttonall l Channelized Flow Slope St (ft/ft) NRCS Conveyance Factor K Channelized Flow Velocity Vt (ft/sec) Channelized Flow Time tt (min) Computed te(min) Regional tc(min) Selected to(min) 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr Al 26.83 C 2.34 0.01 0.05 0A5 0.33 0.40 0.49 0.60 500 0.028 30.06 1750 0.020 5 0.71 41.25 71.31 47.71 47.71 1.00 1.32 1.65 2.19 2.67 3.22 4.75 0.33 1.91 6.59 19.49 28.98 42.68 75.91 X1 26.83 C 2.00 0.01 0.05 0.15 0.33 0.40 0.49 0.59 500 0.028 30.14 1750 0.020 5 0.71 41.25 71.39 47.88 47.88 1.00 1.31 1.64 2.18 2.66 3.22 4.74 0.28 1.81 6.47 19.34 28.79 42.46 75.59 Area -Weighted Runoff Coefficient Calculations Version 2.00 released May 2017 Designer: TAN Company: ENERTIA Date: 10/17/2023 Project: PIVOT 59 - EIFERT Location: WELD COUNTY Subcatchment Name Al LE GEND : Flow Direction C at chni eat B oimday e Cells of this color are for required user -input Cells of this color are for optional override values Cells of this color are for calculated results based on overrides See sheet "Design Info" for imperviousness -based runoff coefficient values. Sub ID -Area Area (ac) NRCS Hydrologic Soil Group Imperviousness Percent Runoff Coefficient, C 2-yr 5-yr 10-yr 25-yr 50-yr 100-yr 500-yr ACCESS 0.18 C 40.0 0.30 0.36 0.43 0.54 0.59 0.65 0.71 CONC PADS 0.01 C 100.0 0.83 0.85 0.87 0.88 0.89 0.89 0.90 CLASS VI PADS 0.02 C 40.0 0.30 0.36 0.43 0.54 0.59 0.65 0.71 FIELD 26.62 C 2.0 0.01 0.05 0.15 0.33 0.40 0.49 0.59 26.83 Total Area (ac) 26.83 Area Area -Weighted -Weighted C Override C 0.01 0.05 0.15 0.33 0.40 0.49 0.60 0.01 0.05 0.15 0.33 0.40 0.49 0.60 1 n r /hc, m X11 LI 70 I N L 47 Mffl EiTim _ ■ PIVOT SOLAR PROJECT EIFERT PARCEL 71 II 1 LIENERTIA CONSULTING GROUP LLC 1515 MARKET STREET DENVER, CO 80202 (720) 250-8305 FIGURE 1 - VICINITY MAP PIVOT ENERGY SOLAR FARM ON EIFERT PARCEL WELD COUNTY, COLORADO DATE: 10/16/2023 SCALE: 1" = 5,000' BY: TN National Flood Hazard Layer FIRMette FEMA Legend 104°37'41"W 40°30'N 104°37'4"W 40°29'33"N 08123C153% 0 250 500 1,000 1,500 2,000 Basemap: USGS National Map: Orthoimagery: Data refreshed October, 2020 Feet 1:6,000 SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT SPECIAL FLOOD HAZARD AREAS Without Base Flood Elevation (BFE) Zone A. V A99 With BFE or Depth Zo,?E AE Regulatory Floodway AC.A AF? OTHER AREAS OF FLOOD HAZARD OTHER AREAS GENERAL STRUCTURES OTHER FEATURES MAP PANELS 0.2% Annual Chance Flood Hazard, Areas of 1% annual chance flood with average depth less than one foot or with drainage areas of less than one square mile Future Conditions 1% Annual Chance Flood Hazard yi Area with Reduced Flood Risk due to Levee. See Notes. Zone X Area with Flood Risk due to Levee Zone D NO SCREEN Area of Minimal Flood Hazard zone x Effective LOMRs Area of Undetermined Flood Hazard Zone - — - - Channel, Culvert, or Storm Sewer 1111111 Levee, Dike, or Floodwall 20.2 Cross Sections with 1% Annual Chance 17.5 Water Surface Elevation 8 - - - - Coastal Transect -^^^-,513-0.-- Base Flood Elevation Line (BFE) Limit of Study Jurisdiction Boundary - - - - Coastal Transect Baseline - - - - Profile Baseline Hydrographic Feature Digital Data Available No Digital Data Available Unmapped The pin displayed on the map is an approximate point selected by the user and does not represent an authoritative property location. This map complies with FEMA's standards for the use of digital flood maps if it is not void as described below. The basemap shown complies with FEMA's basemap accuracy standards The flood hazard information is derived directly from the authoritative NFHL web services provided by FEMA. This map was exported on 3/16/2O23 at 4:55 PM and does not reflect changes or amendments subsequent to this date and time. The NFHL and effective information may change or become superseded by new data over time. This map image is void if the one or more of the following map elements do not appear: basemap imagery, flood zone labels, legend, scale bar, map creation date, community identifiers, FIRM panel number, and FIRM effective date. Map images for unmapped and unmodernized areas cannot be used for regulatory purposes. HEAT ISLAND IMPACT REPORT - EXECUTIVE SUMMARY Impact Study on Heat Island Effect of a Proposed Solar Project Prepared For: PIVOT ENERGY INC. 1601 Wewatta St., Suite 700 Denver, CO 80202 Submitted By: Lei Zhao Assistant Professor Civil and Environmental Engineering University of Illinois Urbana -Champaign May 14th 2024 1 EXECUTIVE SUMMARY The Pivot Energy Inc. is proposing a 5MW AC community solar project — Bureau Solar 2 LLC (hereafter the "Project") that will occupy approximately 29.3 acres of farmland in the Bureau County (site plan attached below as Fig. 1). The Project will consist of arrays of solar photovoltaic (PV) panel and farm hay and/or alfalfa between the arrays, as well as plant corn outside the project fence in the remaining 10 acres of the parcels. As an Assistant Professor in the Department of Civil and Environmental Engineering at the University of Illinois Urbana -Champaign, I (Lei Zhao, Ph.D.) have been invited to provide an objective, in-depth assessment on whether the proposed project will result in any significant heat island (i.e., localized increase in near -surface air temperature) effect. This abbreviated report summarizes the analysis and assessment results based on literature review of peer -reviewed scientific papers published in top -ranked journals (including my own research laboratory's work) and some initial quantitative estimates (see Methodology below). This assessment report can be included by the Pivot Energy Inc. for submission in their application for entitlement for the Project development. I have conducted a thorough literature review on the climatic effects of solar PV/solar farm implementation across scales. Both the state-of-the-art studies and my own analyses have shown that implementation of community- or local -scale solar farm (i.e., arrays of solar PV panels) is highly unlikely to cause any local warming (i.e., heat island) effect. Many studies including my own groups' have shown that the development of a solar farm could actually have a slight local cooling effect due to its biophysical effect on the land -atmosphere interactions. This is particularly the case when the electricity generated by the solar farm is not largely consumed on site, which applies to this proposed Project. In addition, this Project also proposes to farm hay grass or alfalfa between the arrays and grow corn right outside the project fence in the parcels. This will further enhance the local cooling effect due to the potential increase evapotranspiration from the grass and corn field. In summary, I conclude that the proposed Project is highly unlikely to cause any discernible heat island (i.e., increased local air temperature) effect. 1:ITE NOTES i. IHERE. Will DE 2417 UNESCORTED ACCESS TO WREN EQUIPMENT - 2. PRIMARY METER WILL BE 5 TO 25 FEET FROM ACCESS POINT S. CUSTOMER WILL COORDINATE WITH AMEREN WITHTECHNICALSCETAILMID LOCATION OF PRIMARY METER 4. CLGTOMER OWNED POLES WILL BE A MINIMUM OF 30' FROM SOLAR MOOULES 3 ALL POLES YRLL EE 23' MARI i - 0 y.. - _ _ •'- ',- fl I I I, M $ 6 -. 1 Rj.E nMlt{iPD EQVI•EHT 16• WIOE GRAVEL ACCESS ROAD OFF COUNTY ROAD 2200 N j I •RI A -Ka -r— • cwTdcv rPakat a2. cunTOfan 14LL9oc -CLOT1 POLE ii miff GENERATOR OPSONNECT ■■7 Or • P0RIT OF COEION RMRY0 IFOC° • UT41TY POLE 12: MISR/ METER •Unrc• POLE II mutt RECLOSER SOFT SETBACK FROM ROW -. _ _ 25FT PITCH _ - COUNTY ROAD 2206 N ice I POI. MV INTERCO?RIEC TIOH SATELLITE VIEW L�, ,i (41.464B3I.-54A66I4T) 2.640 FT FROM ARRAY tic -/ —• • - EXISTING OVERHEAD ELECTRIC LINE - P01. MV INTERCONNECTION LENGTH 45OFT W' P' p . SOYY PROPERTY SETBACK I' 4.I PROJECT FENCE 8' CHAIN I I _ I flfl J K g i KL. LINK OR GAME FENCE 1 _i 11111 - q PARCEL BOUNDARY Lan'm=n Ea1JIP1•IF,NT Pa$$ BUREAU SOLAR 2 LLC 4L4ee1. 44DOCI ) PRINCETON, IL RIM 1""� Pivot n&a ��-,�.O«PROXC, ID -co-A Energy mai_ 1q flD 00t on*,, 6 SOOM'U.. SCUM W FAXICCt PLAN •i04 waist. Nut ex RERAN No NM Ot1G 70t4.0SI0 NWfl )IDtCKC.$t' .(40) INVERTERS • (2)CUSTOMER-OWNED PRODUCTION METER 2.•••••• /--1.5 MILE FROM ARRAY 20FT FENCE CLEARANCE •(2) AC OISCC.MNECT • (2) AC SWITCHBOARD •(2) DAS 8 WEATHER STATION •(2) PAD MOUNTED CUSTOMER OWNED STEP-UP XFMR (2500nvA) VICINITY MAP (L 2, SYS1EM SPECIFICATIONS I E- f i520 a aPEAK DUO XL-G11.3/01G 510W nt - 400 Cis SCHI1SKTL-00/08-600 IZS•W. MOUNTING SYSTEM IBOIT BUILDING SETBACK. TYP 6 - All IMRA !RACK SINGLE -AXIS TRACKER SYSTEM SIZE ' I ' - 668100O1x 5WOKWAE FENCED AREA L.2 SITE PLAN 29.3 Awn SITE PLAN 4` NOTES 8 SPECIE IC.A'i ION!, L1 Fig. 1 Site plan of the proposed Bureau Solar 2 LLC project 2 METHODOLOGY The assessment methodology consists of two main analysis approaches. 1. Literature review. I have conducted a thorough literature review on recent published scientific papers on studying the climatic impacts of implementing solar PV panels across scales, and performed comparative and meta- analyses. 2. Quantitative estimation. My research group has developed a physics -based analytic method that can quantitatively estimate the temperature effects caused by various biophysical changes to the land surface'. The method has been published in top scientific journals: Nature2'4, Nature Geoscience5, and Nature Communications3, and has been widely used in various climate impacts applications. This analytic method is based on urban surface energy balance principles, and attributes the temperature change (ST) to contributions from changes in surface biophysical parameters including albedo, evaporation, convection efficiency, heat storage and anthropogenic heat addition (Equation 1). ST = Af (L\a)K1 + �1 Af�a (Rn* - Qs + QAH)(L\f2) (1) 1+ with, Rn 1—a)Ki+Li—(1— aril —E6Ta f = (1 + —) ra n R D f2 = ra (�2) where T — surface temperature, A0 — local climate sensitivity (= 1/4aaT 3), f — energy redistribution factor, Rn — apparent net radiation, p — air density, Cp — specific heat of air at constant pressure, ra — aerodynamic resistance to heat diffusion, /3 — Bowen ratio, a — surface albedo, Ki, — incoming solar radiation, L1 — incoming longwave radiation, QS — stored heat, QAH - anthropogenic heat release, E - surface emissivity, a — Stefan - Boltzmann constant, Ta — air temperature at the blending height. This analytic model, together with the Project specs given by Pivot Energy Inc., are used to estimate is local temperature change (i.e., heat island) effect. RESULTS 1. Literature review: effect of solar photovoltaics (PV) on the urban environment Renewable energy installations in urban areas offer low to zero carbon emissions, offset capital -intensive investments for network upgrade, and impart local energy independence and network security'. These installations modify urban surface properties and affect the urban environment through changes in urban energy balance. Solar PVs in urban areas can perturb urban air temperatures and impact building heating and cooling energy demand. Solar PV converts part of the incident solar radiation to electricity that would otherwise be absorbed by the urban environment, lowering the urban air temperature and 3 the cooling load of buildings, curbing the need for air-conditioning. In addition, the generated electricity, when consumed on -site, can replace non-renewable energy imports that would lead to additional waste heat being released, hence further cooling the urban environment. Local -scale modeling studies that dynamically simulate the interactions between solar PVs and the urban environment report 0.1 to 1°C of cooling in urban air temperature. Berardi and Graham (2020)8 simulated rooftop solar PVs using the ENVI-met model over a neighborhood in Brampton, Ontario consisting of mainly two-story detached homes. They found around 0.1°C reduction air temperature during a heat wave day when all building roofs are covered with PV. Taha (2013)9 uses mesoscale and meso-urban meteorological models to evaluate the effect of solar PVs on urban air temperature in Los Angeles, California, and found a cooling effect of 0.15 to 0.20°C. Salamanca et al. (2016)10 used the Weather Research and Forecasting (WRF) model coupled to the multilayer building energy (BEP+BEM) system to characterize the effect of solar roof on 2-m air temperature and citywide air-conditioning electricity consumption in Arizona. When all roofs are covered with rooftop solar panels, they found a temperature reduction of 0.2 — 0.4°C during the daytime and 0.4 — 0.8 °C during the nighttime (Fig. 2). Ma et al. (2017)11 that also used the WRF model found a daily maximum temperature reduction of up to 1°C in the city center, and 0.4 — 0.8 °C in surrounding areas in Sydney, Australia, when all building roofs are replaced with solar roofs. (a) 34.20 33.90 w - % 33.60 o a 33.30 TT F� 1 J 33.00 z 32.70 34.20 (c) w F- act a a t 1 33.90 ei 33.60 - 33.30 - Phoenix • • . • . 17 . • • Cao, aca• ♦ •* ••! ▪ • •tin • • • ai • . ••. N S T ••• O ,. kW,.. 4 ..►L O2. W 0. i . . • - •40.1 • .Zr • . • • . • • • I I t -112.8 -112.4 -112.0 -111.6 Longitude (°) Tucson 32.60 32.40 32.20 V J 32.00 31.80 31.60 -111.6 -111.4 -111.2 -111.0 -110.8 -110.6 Longitude in (14 111 0.8 0.6 0.4 0.2 0.1 -0.1 -0.2 - 0.4 -0.6 -0.8 (d) 0.8 0.6 0.4 0.2 0.1 -0.1 -0.2 - 0.4 - 0.6 - 0.8 4 Fig. 2 Modeled mean 2-m air temperature differences between all solar roofs and control (original roofs) averaged for the entire 10 -day extreme heat period in July 2009 during nighttime hours (a, b) and during daytime hours (c, d) for Phoenix (left) and Tucson (right) regions, respectively. Urban land use is bounded by black contours. Adapted from Salamanca et al. (2016), Fig. 3. A global -scale study Hu et al. (2016)12 used the Community Earth System Model to investigate the local, regional, and global climate effects of large-scale implementation of solar PV, including both rooftop solar panels and solar farm. This study also finds a slight cooling effect E, 0.34K on average) resulted from the solar PV implementation at broader scales (Fig. 3). a Control 255 265 275 285 Temperature b 288.23 K 295 305 SPDU-Control -1.0 -0.5 -0.1 0.1 0.5 Fig. 3 Surface temperature. a, Surface temperature in the Control experiment. b, Surface temperature anomaly relative to the Control experiment in the solar PV experiment. The numbers at the upper right corner of each panel represent the global average. Stippling indicates the changes are statistically significant at the 95% level using a double -sided Student's t -test. Adapted from Hu et al. (2016), Fig. 1. 2. Quantitative estimate The presence of a solar panel converts a portion of the solar radiation into electricity. In another word, part of the solar radiation that originally heats up the land surface is now turned into electricity that will be used elsewhere. Therefore, conversion of an original land surface to solar PV would cool the near -surface airs°,12. This biophysical effect of solar PV is essentially like as an "albedo" effect in the surface energy balance (Equation 1). Based on the average solar PV parameters of the proposed Project, we can use Equation 1 to estimate its temperature effect. The solar PV panel used in the Project has an average albedo of 0.10 and an average electricity conversion efficiency of 25%, giving a heat removal rate equivalent to having a surface albedo of 0.33. Based on Equation 1, we estimate that the solar PV will slightly lower the near -surface temperature by an average amount of 0.3 °C K in the daytime and ' 0.1 °C in the nighttime. In addition to this "albedo" effect, the Project also propose to farm hay or alfalfa grass -034 K 1.0 5 between the arrays and grow corn outside the project fence in the remaining 10 acres of the parcels. The vegetated (grass and corn) land cover of the project site will further increase the evapotranspiration, thus leading to additional cooling effect. Using the analytic model (Equation 1), we estimate this evapotranspirative cooling effect would be 0.1 - 0.2 °C in the daytime and nearly 0 °C. Putting the two effects together, we estimate that the proposed Project would only slightly lower the near -surface air temperature by an average amount of 0.4 °C in the daytime and 0.1 °C in the nighttime. CONCLUSION Based on the literature review and initial quantitative analysis using our analytic model and the Project specs, we can conclude that the proposed Project by Pivot Energy Inc. in the Bureau County will not result in, if any, a discernible local warming (i.e., heat island) effect. The Project might actually have a slight cooling benefit which comes from a combined effect of solar PV's conversion of solar heat into electricity and the enhanced evapotranspirative cooling from the vegetated fraction. These findings are consistent with the published literature. 6A km Lei Zhao, Ph.D. Assistant Professor Department of Civil and Environmental Engineering (CEE) The Grainger College of Engineering Institute for Sustainability, Energy, and Environment (iSEE) National Center for Supercomputing Applications (NCSA) University of Illinois at Urbana -Champaign 6 PREPARER Dr. Lei Zhao is an Assistant Professor in the Department of Civil and Environmental Engineering, Institute for Sustainability, Energy, and Environment (iSEE), and the National Center of Supercomputing Applications at the University of Illinois Urbana -Champaign (UIUC). His research concerns the physical and engineering processes in the atmospheric boundary layer where most human activities and environmental systems are concentrated, with a particular focus on built surfaces and urban environments. He combines theory, numerical modeling, remote sensing and in situ observations, and cutting -edge machine learning methods to study land - atmosphere interaction and environmental fluid mechanics that relate to urban climatology and hydrology, urban climate change, impacts, and adaptation. Dr. Zhao is the recipient of the U.S. NSF CAREER Award, the Timothy Oke Award (2023) from the International Association for Urban Climate, and the American Geophysical Union (AGU) Global Environmental Change Early Career Award (2023). He received his Ph.D. degree in atmospheric physics from Yale University and B.S. degree from Nanjing University. Before joining at UIUC, he worked as a postdoctoral fellow at Princeton University. Website: https://cee.illinois.edu/directory/profileileizhao Reference: 1. Zhao, L., Lee, X. & Schultz, N. M. A wedge strategy for mitigation of urban warming in future climate scenarios. Atmospheric Chem. Phys. 17, 9067-9080 (2017). 2. Zhao, L., Lee, X., Smith, R. B. & Oleson, K. Strong contributions of local background climate to urban heat islands. Nature 511, 216-219 (2014). 3. Cao, C. et al. Urban heat islands in China enhanced by haze pollution. Nat. Commun. 7, 12509 (2016). 4. Zhang, K. et al. Increased heat risk in wet climate induced by urban humid heat. Nature 1-5 (2023) doi:10.1038/s41586-023-05911-1. 5. Wang, W. et al. Global lake evaporation accelerated by changes in surface energy allocation in a warmer climate. Nat. Geosci. 11, 410-414 (2018). 6. Kammen, D. M. & Sunter, D. A. City -integrated renewable energy for urban sustainability. Science 352, 922-928 (2016). 7. Sailor, D. J., Anand, J. & King, R. R. Photovoltaics in the built environment: A critical review. Energy Build. 253, 111479 (2021). 8. Berardi, U. & Graham, J. Investigation of the impacts of microclimate on PV energy efficiency and outdoor thermal comfort. Sustain. Cities Soc. 62, 102402 (2020). 9. Taha, H. The potential for air -temperature impact from large-scale deployment of solar photovoltaic arrays in urban areas. Sol. Energy 91, 358-367 (2013). 7 10. Salamanca, F., Georgescu, M., Mahalov, A., Moustaoui, M. & Martilli, A. Citywide Impacts of Cool Roof and Rooftop Solar Photovoltaic Deployment on Near -Surface Air Temperature and Cooling Energy Demand. Bound. -Layer Meteorol. 161, 203-221 (2016). 11. Ma, S. et al. The impact of an urban canopy and anthropogenic heat fluxes on Sydney's climate. Int. J. Climatol. 37, 255-270 (2017). 12. Hu, A. et al. Impact of solar panels on global climate. Nat. aim. Change 6, 290-294 (2016). 8 in Pivot Energy Pivot Energy Inc. - Landscape and Screening Plan Pivot Solar 59 LLC, c/o Pivot Energy Inc. is being constructed near the intersection of Weld County Road 70 and County Road 47. The site is approximately 27 acres. Other nearby uses include center pivot and flood irrigation agriculture. Solar facilities present a low profile, especially when compared to other operational energy and commercial facilities already present near the property. As such, these installations generate very little visual impact to neighboring properties and typically require little in the way of visual buffering. The main strategy employed to lessen visual impact of the proposed installation is to site the facility at the greatest feasible distance from any residences on neighboring properties and from the right-of-way. The applicant intends to provide a 500 -foot buffer between the solar equipment and any neighboring residential parcels. If there are neighboring residences within a 500 -foot buffer, Pivot Energy Inc. will provide an option to decrease visual impacts, such as opaque fencing, landscaping features, or an agreed upon mitigation measure. The applicant proposes to surround the facility with a decorative, wildlife friendly game fence which will serve to break up the visual impact of the facility when viewed from adjoining properties. Within the fence line and on any other areas disturbed during construction, applicant will establish native, low -growth grasses in keeping with vegetation common for the area to allow the project area to blend in with the surroundings. pivotenergy.net Pivot %4k Energy Pivot Energy Inc. — Maintenance and Vegetation Plan Site maintenance is critical to ensure that an operational solar facility meets all conditions of operation. This document outlines the steps the operator will take to ensure the site is properly maintained during construction and throughout the operational life of the facility. 1) Weed Management If construction occurs during growing season, Pivot will apply broadleaf herbicide prior to commencing construction. Once construction is complete, Pivot will re -apply broadleaf herbicide if needed to allow planted native grass seed mix to revegetate. Hydro -seed or hydro -mulch a drought tolerant native grass seed mix in the early spring or early fall. Final seed mix will be determined by an approved professional knowledgeable with re -vegetation means and methods. Mow project area a minimum of once per year, at a cut height of no less than six inches. It is possible that mowing may need to take place twice or more during the growing season or may be replaced via grazing livestock. Since weed seeds remain viable in the soil for number years, site and weed management is a long-term process. Treated areas will be monitored annually and re- treated if necessary, using typical weed management practices and procedures. 2) Planting Method Preferred method will be hydroseed and hydro -mulching. If required, nutrient supplementation will take place to ensure the successful establishment of permanent ground cover. Permanent seeding shall occur between December 1 and May 1 or between August 1 and September 1, or as recommended by a vegetation specialist. 3) Temporary Seed Mix Temporary seeding areas, which will be ready for stabilization after May 1 and before August 1, shall be seeded with Millet or Sorghum at the rate of 40 pounds per acre, with the amount of fertilizer as specified. The requirement to plant temporary seeding does not eliminate the requirement to plant permanent seeding. Straw mulch is not required for temporary seeding. 4) Permanent Seed Mix To consist of native, drought -tolerant, low growth grasses and flowering plants. If viable, preference will be given to a seed mix that can support pollinators. Final mix will be determined at the time of planting by a qualified vegetation specialist. 5) Site Maintenance Checklist a) Mow project area once per year at a minimum to a cut height of 6 inches or greater. pivotenergy.net Pivot %4k Energy Pivot Energy Inc. — Maintenance and Vegetation Plan b) Walk the site and remove any accumulated debris on either side of the fence line and properly dispose. No burning of trash will be allowed. c) Apply herbicide as needed to control noxious weeds. d) Inspect and re -seed any bare ground with permanent seeding. e) Inspect fence and repair as needed. f) Inspect all-weather access road and repair as needed. g) Inspect site for any visible erosion. Remove transported sediment and implement necessary erosion control measures to minimize future maintenance issues. pivotenergy.net ENERTIA CONSULTING GROUP LLC June 24, 2024 Weld County Planning and Building Department 1555 N 17th Ave Greeley, CO 80631 RE: Traffic Impact Letter Use by Special Review — Eifert Parcel NW of WCR 70 & WCR 47 To whom it may concern: I. Introduction 1515 Market Street Denver, CO 80202 (609) 234-5502 rick.hagmayer@enertiacg.com In fulfillment of the Weld County Use by Special Review (USR) permitting requirements, Enertia Consulting Group (Enertia) has completed this Traffic Impact Letter for the proposed Pivot Energy Solar Facility on the Eifert Parcel located on approximately: 25.849 acres northwest of the intersection of WCR 70 and WCR 47. The intent of this Report is to provide traffic related information and identify potential project impacts to affected roadways within Weld County. The following information is included in this letter report: • Project Location, Components and Construction Schedule • Designated Travel Route • Daily Vehicle Trip Generation • Conclusions II. Existing Conditions Location The project is located on an approximately 25.85 acre project site within a larger 32.12 acre parcel along the west side of WCR 47, north of WCR 70 on Weld County Parcel: No. 080311000028 in Section 11, T6, R65, SE4 . Weld County Planning and Building Department Page 2 of 4 III. Proposed Condition Components The Pivot Energy Solar Facility on the Eifert Parcel project shall generally include: up to a 5 MW solar facility with approximately 5,500 tracking solar panels mounted on steel I -beams; concrete pad mounted inverters and transformers; an access drive with emergency turn -around and perimeter fence with gate. Construction Schedule It's currently anticipated that the Use by Special Review Permit will be issued by Weld County on or before March 01, 2025. Accordingly, a construction start/mobilization date of April 01, 2025 has been established. Based on this, the following preliminary schedule is currently considered: • Driveway and material staging area prep April 01, 2025 - April 21, 2025 • Solar Facility Component Delivery • Perimeter Fence Installation • Solar Panel Foundation Installation • Transformer and Inverter Installation • Solar Panel Installation Designated Travel Route April 22, 2025 — June 02, 2025 May 03, 2025 — June 02, 2025 June 02, 2025 - September 02, 2025 September 03, 2025 — October 01, 2025 October 04, 2025 — December 31, 2025 The designated access route is: 1-76 north to WCR 49. WCR 49 north to WCR 47. WCR 47 north to the site. Figure 1 illustrates the access route. The following is a brief description of the access route 1-76 — 1-76, in the vicinity of WCR 49, is a 4 -lane concrete -paved road with left turn lanes and acceleration/deceleration lanes; and a posted speed limit of 65mph. It's anticipated that 100 percent of material deliveries will be from the south. WCR 49 — The +/- 21.6 mile segment of WCR 49 included in the travel route is a 2 to 4 -lane, concrete -paved road with intermittent bar ditches. WCR 47 — The +/- 6.1 mile segment of WCR 47 included in the travel route begins as a 4 -lane concrete -paved road with intermittent bar ditches. It transitions into a 2 -lane gravel road north of at WCR 68. The road surface appears to be in good condition. It's anticipated that all material deliveries will travel along WCR 47 from WCR 49 via 1-76. Weld County Planning and Building Department Page 3 of 4 Daily Vehicle Trip Generation and Distribution Project development may be divided into the following 4 phases (site preparation, material and equipment delivery, solar facility construction and solar facility maintenance). The following Table 1 illustrates the estimated average daily trip generation by vehicle type for each Project phase. Table 1 — Vehicle Trip Generation Project Phase (Time Period) Vehicle Type Estimated Gross Vehicle Weight Number of Vehicles Per Day Maximum Vehicle and Trips Average Per Day Site Preparation (approx. 1-3 weeks) . Equipment Hauling Trucks 30,000-65,000 lbs 0-2 0-4 Passenger Vehicles 2,000-10,000 lbs 2-5 4-10 Fuel Delivery 20,000-30,000 lbs 1 2 Max-16/Ave-9 Material (approx. and Delivery 4-5 Equipment weeks) Conex Container Delivery Trucks and 30,000-50,000 lbs 10-30 20-60 Equipment Hauling Trucks 20,000-40,000 lbs 0-8 0-16 Max-79/Ave-40 Solar facility Installation (6-7 months) Passenger Vehicles 2,000 to 10,000 lbs 20-30 40-60 Fuel Truck 20,000 to 30,000 lbs 1 2 Material Delivery Truck 20,000 to 30,000 lbs 1 2 Max — 64/Ave - 52 Operations (ongoing operational) once Utility Vehicle 2,000 to 10,000 lbs 1 per month or less Max- 2/Ave-0 As illustrated in Table 1, the majority of traffic generated as a result of solar facility installation shall occur during the 9 -month solar facility installation (max 79/ave 40vtpd). This traffic will generally be site worker passenger vehicles. The majority of heavy truck traffic including conex container delivery (total of 510-850 conex containers/delivery trucks) and equipment (rubber tire loader, pile driver, forklift) delivery and pickup will travel to and from the Project between 9:30 AM and noon and 1:30PM and 4:00PM. Project related traffic during all phases will not be significant during AM and PM peak periods (7:30 9:00 AM and 4:30 — 6:00 PM, respectively). Weld County Planning and Building Department Page 4 of 4 IV. Conclusions 1. The Project is expected to generate up to 79 vehicle trips per day during material and equipment delivery (anticipated to be up to one month at the beginning of the project and one month at the end of the project), up to 64 vehicle trips per day during solar facility installation (6-7 months) and up to 2 vehicle trips per month during solar facility operation. 2. Site preparation and solar facility installation anticipated to begin in April 2025 and be completed in December 2025. 3. The phase with the greatest amount of traffic (79 vtpd material and equipment delivery) is expected to occur over a 4-5 week period (April 2025 — June 2025). 4. Daily Project related truck traffic is not expected to impact AM and PM peak traffic periods. 5. Sight distance at the Project entrance is well over 1,000 feet both north and south along WCR 47. 6. Access to the project site is through an existing driveway. Therefore, a Weld County access permit will not be required. 7. As proposed, the solar garden site preparation, installation and ongoing inspection/maintenance is not anticipated to create adverse traffic related impacts on Weld County roads. Based on anticipated vehicle type and weight, the project is not anticipated to degrade/damage Weld County roads and a Public Works Improvement Agreement is not likely warranted. We trust that this Traffic Impact Letter for the Pivot Energy Solar Facility on the Eifert Parcel is acceptable and complete. Please contact me at rick.hagmayer@enertiacg.com or (609) 234-5502 should you require additional information. Sincerely, ENEQTinrnMci ii Tinif GROUP, LLC /' I - / U, , Ric 1\ I I _A CAI I It Y V' , I Senior Project Manager attachment V rt t L NI Os 4 rs I M I --tA -.4 !IP PIVOT SOLAR EIFERT PARCEL PROJECT s St air SITE ACCESS WCR 47 11\ 11:444trsilit 1 WCR 49 J° 4 4, ... _„, ,..„ _ Illi I Arsil DESIGNATED TRAVEL ROUTE VIA 1-76 Mit 1 EN ERTIA DENVER, 100 VER, CO 80202 I CONSULTING GROUP LLC (609) 234-5502 1515 MARKET STREET FIGURE 1 - PROXIMITY MAP & DESIGNATED TRAVEL ROUTE PIVOT ENERGY SOLAR FARM ON EIFERT PARCEL WELD COUNTY, COLORADO DATE: 10/16/2023 SCALE: 1" = 10,000' BY: TN ENERTIA CONSULTING GROUP LLC September 15, 2023 Weld County Planning and Building Department 1555 N 17th Ave Greeley, CO 80631 RE: Traffic Impact Letter Use by Special Review — Eifert Parcel NW of WCR 70 & WCR 47 To whom it may concern: I. Introduction 1515 Market Street Denver, CO 80202 (609) 234-5502 rick.hagmayer@enertiacg.com In fulfillment of the Weld County Use by Special Review (USR) permitting requirements, Enertia Consulting Group (Enertia) has completed this Traffic Impact Letter for the proposed Pivot Energy Solar Facility on the Eifert Parcel located on approximately: 26.83 acres northwest of the intersection of WCR 70 and WCR 47. The intent of this Report is to provide traffic related information and identify potential project impacts to affected roadways within Weld County. The following information is included in this letter report: • Project Location, Components and Construction Schedule • Designated Travel Route • Daily Vehicle Trip Generation • Conclusions II. Existing Conditions Location The project is located on an approximately 26.83 acre project site within a larger 32.12 acre parcel along the west side of WCR 47, north of WCR 70 on Weld County Parcel: No. 080311000028 in Section 11, T6, R65, SE4 . Weld County Planning and Building Department Page 2 of 4 III. Proposed Condition Components The Pivot Energy Solar Facility on the Eifert Parcel project shall generally include: up to a 10 MW solar facility with approximately 11,000 tracking solar panels mounted on steel I -beams; concrete pad mounted inverters and transformers; an access drive with emergency turn -around and perimeter fence with gate. Construction Schedule It's currently anticipated that the Use by Special Review Permit will be issued by Weld County on or before March 01, 2024. Accordingly, a construction start/mobilization date of April 01, 2024 has been established. Based on this, the following preliminary schedule is currently considered: • Driveway and material staging area prep April 01, 2024 - April 21, 2024 • Solar Facility Component Delivery • Perimeter Fence Installation • Solar Panel Foundation Installation • Transformer and Inverter Installation • Solar Panel Installation Designated Travel Route April 22, 2024 — June 02, 2024 May 03, 2024 — June 02, 2024 June 02, 2024 - September 02, 2024 September 03, 2024 — October 01, 2024 October 04, 2024 — December 31, 2024 The designated access route is: 1-76 north to WCR 49. WCR 49 north to WCR 47. WCR 47 north to the site. Figure 1 illustrates the access route. The following is a brief description of the access route 1-76 — 1-76, in the vicinity of WCR 49, is a 4 -lane concrete -paved road with left turn lanes and acceleration/deceleration lanes; and a posted speed limit of 65mph. It's anticipated that 100 percent of material deliveries will be from the south. WCR 49 — The +/- 21.6 mile segment of WCR 49 included in the travel route is a 2 to 4 -lane, concrete -paved road with intermittent bar ditches. WCR 47 — The +/- 6.1 mile segment of WCR 47 included in the travel route begins as a 4 -lane concrete -paved road with intermittent bar ditches. It transitions into a 2 -lane gravel road north of at WCR 68. The road surface appears to be in good condition. It's anticipated that all material deliveries will travel along WCR 47 from WCR 49 via 1-76. Weld County Planning and Building Department Page 3 of 4 Daily Vehicle Trip Generation and Distribution Project development may be divided into the following 4 phases (site preparation, material and equipment delivery, solar facility construction and solar facility maintenance). The following Table 1 illustrates the estimated average daily trip generation by vehicle type for each Project phase. Table 1 — Vehicle Trip Generation Project Phase (Time Period) Vehicle Type Estimated Gross Vehicle Weight Number of Vehicles Per Day Maximum Vehicle and Trips Average Per Day Site Preparation (approx. 1-3 weeks) . Equipment Hauling Trucks 30,000-65,000 lbs 0-2 0-4 Passenger Vehicles 2,000-10,000 lbs 2-5 4-10 Fuel Delivery 20,000-30,000 lbs 1 2 Max-16/Ave-9 Material (approx. and Delivery 4-5 Equipment weeks) Conex Container Delivery Trucks and 30,000-50,000 lbs 10-30 20-60 Equipment Hauling Trucks 20,000-40,000 lbs 0-8 0-16 Max-79/Ave-40 Solar facility Installation (6-7 months) Passenger Vehicles 2,000 to 10,000 lbs 20-30 40-60 Fuel Truck 20,000 to 30,000 lbs 1 2 Material Delivery Truck 20,000 to 30,000 lbs 1 2 Max — 64/Ave - 52 Operations (ongoing operational) once Utility Vehicle 2,000 to 10,000 lbs 1 per month or less Max- 2/Ave-0 As illustrated in Table 1, the majority of traffic generated as a result of solar facility installation shall occur during the 9 -month solar facility installation (max 79/ave 40vtpd). This traffic will generally be site worker passenger vehicles. The majority of heavy truck traffic including conex container delivery (total of 510-850 conex containers/delivery trucks) and equipment (rubber tire loader, pile driver, forklift) delivery and pickup will travel to and from the Project between 9:30 AM and noon and 1:30PM and 4:00PM. Project related traffic during all phases will not be significant during AM and PM peak periods (7:30 9:00 AM and 4:30 — 6:00 PM, respectively). Weld County Planning and Building Department Page 4 of 4 IV. Conclusions 1. The Project is expected to generate up to 79 vehicle trips per day during material and equipment delivery (anticipated to be up to one month at the beginning of the project and one month at the end of the project), up to 64 vehicle trips per day during solar facility installation (6-7 months) and up to 2 vehicle trips per month during solar facility operation. 2. Site preparation and solar facility installation anticipated to begin in April 2024 and be completed in December 2024. 3. The phase with the greatest amount of traffic (79 vtpd material and equipment delivery) is expected to occur over a 4-5 week period (April 2024 — June 2024). 4. Daily Project related truck traffic is not expected to impact AM and PM peak traffic periods. 5. Sight distance at the Project entrance is well over 1,000 feet both north and south along WCR 47. 6. Access to the project site is through an existing driveway. Therefore, a Weld County access permit will not be required. 7. As proposed, the solar garden site preparation, installation and ongoing inspection/maintenance is not anticipated to create adverse traffic related impacts on Weld County roads. Based on anticipated vehicle type and weight, the project is not anticipated to degrade/damage Weld County roads and a Public Works Improvement Agreement is not likely warranted. We trust that this Traffic Impact Letter for the Pivot Energy Solar Facility on the Eifert Parcel is acceptable and complete. Please contact me at rick.hagmayer@enertiacg.com or (609) 234-5502 should you require additional information. Sincerely, ENERTIA CONSULTING GROUP, LLC Rick Hagmayer, PE Senior Project Manager attachment PIVOT SOLAR EIFERT PARCEL PROJECT SITE ACCESS WCR 47 WCR 49 DESIGNATED TRAVEL ROUTE VIA 1-76 1 ENERTI 6 DENVER VER, CO 80202 I CONSULTING GROUP LLC (609) 234-5502 1515 MARKET STREET FIGURE 1 - PROXIMITY MAP & DESIGNATED TRAVEL ROUTE PIVOT ENERGY SOLAR FARM ON EIFERT PARCEL WELD COUNTY, COLORADO DATE: 09/15/2023 SCALE: 1" = 10,000' BY: TN Xcel Energy RESPONSIBLE BY N AT U B E"' 10/14/2023 Colorado Distributed Energy Resources Interconnection Process Level 2 Review Results *Confidential - Customer: Pivot Solar 59 LLC Case # 5548139 *Confidential* - Address: 40.494764, -104.62113, EATON, CO 80615 DER Application Size: 5,000.00 kVA Interconnection Feeder: CLVR1340 Substation: DER Active on Feeder: DER in Queue on Feeder: 82.20 kW 1,103.19 kW DER Active on Substation: DER in Queue on Substation: Cloverly 4,386.35 kW 24,419.98 kW Confidentiality: As described in CCR Section 3853 (k), confidential information shall mean any confidential and/or proprietary information provided by one Party to the other Party that is clearly marked or otherwise designated "Confidential." 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 authorizaion from the Party providing that information. Xcel Energy's internal policy categorizes Confidential Information as including information where unauthorized disclosure has the potential to cause a negative impact to the grid, the Company, and/or its customers. The information marked as "Confidential" in this report is non-public information that Xcel Energy has protected to reduce the potential security risks to the grid and our customers. Summary of Results: This project does not qualify for either the Level 1 or Level 2 Fast Track Process and will need to proceed to the Level 3 Study Process. Ground Referencing Adequacy Based on the project size and system configuration, the ground referencing equipment specifications appear to be adequate for installation with this interconnection. Should the size or configuration of this project change at any point in time, this determination will no longer be valid. It is the customer's responsibility to ensure that the ground referencing equipment specifications are reviewed and in compliance with Xcel Energy's Ground Reference Requirements. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,111111111• p. 1/6 Level 2 Process Eligibility CCR Section 3855 (a)(II) CCR Section 3855 (b)(I) (b)(II) To qualify for the Fast Track Review Process: For certified inverter -based systems, the size limit of the interconnection resource varies according to the voltage of the utility line at the proposed point of interconnection. Certified inverter -based interconnection resource facilities located within 2.5 electrical circuit miles of a substation and on a mainline are eligible for the Level 2 Process under the higher thresholds pursuant to this rule 3856. Level 2 Eligibility for Inverter -Based Systems Line Voltage Eligibility Regardless of Location Eligibility Requirements and Meeting Substation) (Mainline Location < 5 kV ≤ 500 kW ≤ 500 kW ≥5kVand<15kV ≤2MW ≤3MW ≥15 kV and<30kV ≤3MW ≤4MW ≥30 kV and ≤69 kV ≤4MW ≤5MW Generating facility is UL 1741 certified? Point of Interconnection is a Mainline Feeder? DER Size: Line Voltage: Distance from Substation: Eligible for Fast Track Review? Level 2 Review Screens Yes Non -Mainline 5,000.00 12.47 3.25 No kW kV mi The proposed interconnection resource's point of interconnection must be on a portion of the utility's distribution system that is subject to the tariff. Passes Screen? Yes For interconnection of proposed interconnection resources to a radial distribution circuit, the aggregated generation, including the proposed interconnection resources, on the line section(s) shall not exceed 15 percent of the line section's annual peak load as most recently measured at the substation or calculated for the line section(s). A line section is that portion of a utility's electric system connected to a customer bounded by automatic sectionalizing devices or the end of the distribution line. A fuse is not an automatic sectionalizing device. Energy storage system(s) capacity for purposes of this screen shall be based on subparagraph 3853(c)(III). *CONFIDENTIAL* - 15% of Peak Load: Aggregate DER, including proposed DER: Passes Screen (Aggregate DER is less than 15% of Peak Load): 595 6,185 No kVA kW p. 2/6 (b)(III) (b)(IV) (b)(V) The proposed interconnection resource, in aggregation with other generation on the distribution circuit, shall not contribute more than ten percent to the distribution circuit's maximum fault current at the point on the distribution feeder voltage (primary) level nearest the proposed point of change of ownership. Distribution Circuit Maximum Fault Current nearest the PCC: Aggregate nameplate DER, including proposed DER, on feeder: Aggregate DER fault current contribution: Max Fault Current: Passes Screen? 0.00 6,185 573 #DIV/0! #ERROR Amps kVA Amps 0/0 The proposed interconnection resource, in aggregate with other interconnection resources on the distribution circuit, shall not cause any distribution protective devices and equipment (including, but not limited to, substation breakers, fuse cutouts, and line reclosers), or Interconnection Customer equipment on the system to exceed 87.5% of the short circuit interrupting capability; nor shall the interconnection be proposed for a circuit that already exceeds 87.5% of the short circuit interrupting capability. Assumed lowest shod circuit interrupting rating of equipment inline with DER: Aggregate DER fault current contribution: Distribution Circuit Maximum Fault Current nearest the PCC: Total available shod circuit current: Aggregate fault current contribution as a % of shod circuit interrupting rating: Passes Screen: 10,000 573 0 573 6 Yes Amps Amps Amps Amps ok The proposed interconnection resource shall meet the rapid voltage charge and flicker requirements of IEEE Standard 1453 (2015) and IEEE Standard 1547 -SA, until January 1, 2022, at which time new DERs applying for interconnection will comply with IEEE 1547- 2018 based on the appropriate test. Passes Screen: The type of interconnection to a primary distribution line shall be determined based on the table below, including a review of the type of electrical service provided to the interconnection customer, line configuration, and the transformer connection to limit the potential for creating over -voltages on the utility's electric power system due to a loss of ground during the operating time of any anti- islanding function. Primary Distribution Line Type Type Primary of Interconnection Distribution Line to Result/Criteria Three -phase, three -wire 3 -phase p or single g phase phase, phase p -to - Pass screen Three-phase, four -wire Effectively Single-phase, Grounded line -to 3 -neutral phase or Pass screen Interconnection Type: Primary Distribution Line Type: Passes Screen: Refer to Ground Referencing Adequacy section of report. p. 3/6 (b)(VII) (b)(VIII) (b)(X) (b)(Xl) If the proposed interconnection resource is to be interconnected on single-phase shared secondary, the aggregate generation capacity on the shared secondary, including the proposed small generating facility, shall not exceed 25 kW. Energy storage system(s) capacity for purposes of this screen, shall be based on subparagraph 3853(c)(III). Aggregate DER on Shared Secondary: Passes Screen: N/A N/A Interconnection is not on a single-phase shared secondary. Screen does not apply. kW If the proposed interconnection resource is single-phase and is to be interconnected on a center tap neutral of a 240 volt service, its addition shall not create an imbalance between the two sides of the 240 volt service of more than 20 percent of the nameplate rating of the service transformer. Service transformer nameplate rating: DER Size: DER Size as a % of service transformer nameplate rating: Passes Screen: Interconnection is not interconnected to a tap neutral. Screen does not apply. N/A N/A N/A N/A kVA kW ok For interconnection of a proposed interconnection resource to the load side of spot network protectors serving more than a single customer, the proposed small generating facility must utilize an inverter -based equipment package and, together with the aggregated other inverter -based generation, shall not exceed the smaller of five percent of a spot network's maximum load or 300 kW. For spot networks serving a single customer, the small generator facility must use inverter - based equipment package and either meet the requirements above or shall use a protection scheme or operate the generator so as not to exceed on -site load or otherwise prevent nuisance operation of the spot network protectors. Interconnection on a Spot Network? DER is Inverter Based? Network Maximum load: Aggregate DER, including applied -for DER: Aggregate DER as °/0 of Network Maximum Load: Passes Screen: Interconnection is not on a Spot Network. Screen does not apply. No N/A N/A N/A N/A N/A kW kW ok For interconnection of a proposed interconnection resource to the load side of area network protectors, the proposed interconnection resource must utilize an inverter -based equipment package and, together with the aggregated other inverter -based interconnection resource, shall not exceed the smaller of ten percent of an area network's minimum load or 500 kW AC. Interconnection on an Area Network? DER is Inverter Based? Network Minimum load: Aggregate DER, including applied -for DER: Aggregate DER as % of Network Minimum Load: Passes Screen: Interconnection is not on an Area Network. Screen does not apply. No N/A N/A N/A N/A N/A kVA kW ok p. 4/6 (b)(IX) (b)(XII) N o construction of facilities by the utility on its own system shall be required to accommodate the small generating facility. Note: Additional construction of facilities may be identified through the S upplemental Review Process and are not addressed in this section. Additional construction of facilities may be required. The nameplate capacity of a proposed interconnection resource, in combination with the nameplate capacity of any previously interconnected interconnection resource, shall not exceed the capacity of the customer's existing electrical service unless there is a simultaneous request for an upgrade to the customer's electrical service, regardless of exporting or non -exporting designations for any of the Service Transformer Nameplate: Aggregate DER on Service Transformer: Aggregate DER Size as a % of Transformer Nameplate Rating: Does the service transformer require replacement as determined by this screen? Technical Planning Standard Similar to Xcel Energy's planning standards for load, aggregate front of the meter DER export capacity is allowed up to 75% percent (%) of the limiting equipment continuous rating, which could be at the substation transformer or feeder level. Xcel Energy will allow behind the meter DER export capacity an additional 25%, due to its association with load, so long as the total aggregate DER export capacity does not exceed 100% of the continuous rating. Due to the variability of load, minimum load is not included in this hosting capacity calculation. However, Xcel Energy will allow non -exporting DER if these thresholds are exceeded. Otherwise a detailed study would be required. Technical Planning Standard Exceeded?: Other Construction of Facilities Construction of other facilities may be required to interconnect the DER. They are listed below. Is Voltage Supervisory Reclosing required? Are construction of other facilities by the utility, not including those identified in the Supplemental Review, required? Passes Screen: Description of Facilities: N o N o VI Yes kVA kW ok p. 5/6 Ground Referencing Inverter -Based Systems 100 kW and greater require ground referencing. The adequacy of the provided ground referencing specifications are evaluated below. Requirement 1: Requirement 2: Requirement 3: Requirement 4: X0. DER As Specified: X0 DER= Requirement Met? X0 DER/RO, DER As Specified: X0 DER/Ro, DER Requirement Met? Neutral Current Rating for Vo = 4%= Neutral Current Rating, as specified= Requirement Met? Minimum required fault current withstand rating= As Specified= Requirement Met? 0.60 ± 10% 4.00 p.u. P11 - amps amps amps amps p. 6/6 FOR COMMERCIAL OR INDUSTRIAL BUILDINGS, PLEASE COMPLETE THE FOLLOWING INFORMATION: Business Name: Address: Business Owner: Home Address: Pivot Energy Renewable Services 1601 Wewatta St #700 Pivot Energy 1601 Wewatta St #700 Phone: City, state, zip: Phone: City, state, zip: List up to three persons in the order to be called in the event of an emergency: NAME TITLE PHONE Angela Burke, Sr Manager, Project Engineering & Analysis, 989.412.4705 Denver, CO 80202 Denver, CO 80202 ADDRESS Business Hours: 9-5, Mountain Time Zone UTILITY SHUT OFF LOCATIONS: Main Electrical: Gas Shut Off: TBD Days: Monday -Friday TBD Exterior Water Shutoff: TBD Interior Water Shutoff: TBD 10/23/2023 i'%. Pivot Energy Local Solar Projects are producing long-term revenue for the town and county, providing affordable energy, and investing in Weld's agricultural industry. We Want to Hear From You! We're hosting a family -friendly open house for Eaton residents to learn more about upcoming solar projects. Please join us to learn more about local solar and agricultural initiatives, provide feedback and enjoy some door prizes. One lucky winner will be selected for Pivot to pay their household electricity bill! Cozy holiday refreshments will be provided. Where: Eaton Public Library Address: 132 Maple Ave, Eaton, CO 80615 When: 4:00 - 6:30 pm Date: Monday, December 11th, 2023 Call or Email us to RSVP 888.734.3033 ext. 726 communityfeedback@pivotenergy.net Local Solar, Local Benefits New small-scale solar projects that are co -located with agricultural practices are being proposed in Weld County, CO. Solar is a clean, quiet neighbor that creates small local business partnerships with landowners, tenant farmers, and local shepherds. It brings ample local benefits, including investments in agricultural research, education, and workforce development, provides affordable energy and tax revenue. Join us at the Eaton Public Library on December 11th to learn more and provide your feedback. Call or Email us to RSVP c 888.7343033 ext. 726 M communityfeedback@pivotenergy.net fiA4 P• ivot � Energy Pivot Energy is a national renewable energy provider that develops, finances, builds, owns, and manages solar and energy storage projects. We are Colorado's largest community solar provider, with over 55 MW completed. Pivot Energy 11601 Wewatta St. Ste 700 I Denver, Co 80202 Certified Corporation EATON PUBLIC LIBRARY pivotenergy.net ire 4 Pivot itmr Energy Pivot Energy Inc. — Community Meeting 1. Community Meeting Details Pivot Energy held a community meeting at the Eaton Public Library, located at 132 Maple Ave, Eaton, CO 80615, from 4-6:30 PM on Monday, December 11th, 2023. Sixteen (16) neighbors attended the meeting. On 11/24/23, All neighbors within a 0.5 -mile radius (shown in the map above) of the project boundary were sent a postcard inviting them to attend and providing contact information at Pivot to provide feedback. In addition to the postcards, all direct abutters to the project were sent a USPS priority mail envelope containing the following: • A letter personally introducing the developer assigned to the project, Pivot Energy as a company, and Pivot's Solar Projects • Contact information for the developer • Solar Project frequently asked questions • A postcard inviting them to the community meeting in Eaton. pivotenergy.net ire 4 Pivot itmr Energy Pivot Energy Inc. — Community Meeting 2. List of Neighbors and Community Members that Attended Meeting As illustrated above, sixteen (16) community members showed up to Pivot Energy's community meeting at Eaton Public Library on December 11th. Those in attendance are listed below in the copy of the community sign in sheet. /1/ 9/,UtJ sea ikluAt oft. 'Li.- t- eit4 x -c IMOr 0? '('. °-1 L. �& 1J , c70-3 -ocOB az ct-c'tJJ^ ee' onk Tecak-7, Vic14 C W5 -7-A_Ir0 (55 ra,..) (1_04rTh 1,4 , VT≥1kt (1� 1 A ., > 4 A / 191v11•t il•S IILD/9-5 r rY _efr /rte jes\&otAAS —Tease vget LibzE= Vii" 4'1stteM 7 co d, egomI (dd.tl SI C1_. 1 <;` Pc d 1 k 1/4, , C1 1 CL (Lc � � y . I^ a110,13 s)\ Ii.)eIk • Ai qArc' t'?` WS j `1 Yt �1 , Co ,^r, 3 apSle M ms_ 03 c &. }$4\L _ coM vl i. ' l ANA."C rr e tevl isi .5 It / Ch. kGr ✓ 4-:` /'i/`1f, -c 308.s et iied zi 7 6(11/1-A 71qg a 20 -C 447 .c.J 7 XL1 f• ee 72 bcia- + c YL 47 r`-jAsLi dkirei5lr jM s 4r04,, ! 2,, 'r c 36q--30440 4 97o -37(-5735 5o8 -.7S7_21&3 70, 2)- Z7( 4 70 S Ira' 772 97 -;off--9ct25 9:10) 5%S- 14OO6 cI.?c'-6 n -627G 233' 6 5l CA? o pivotenergy.net ire 4 Pivot itmr Energy Pivot Energy Inc. — Community Meeting 3. Post -Community Meetino Acrions During the community meeting, neighbors discussed their general concerns with both the current condition of the parcel and the future potential visual impacts. Currently, the site is largely vacant, having not been used for agricultural purposes in years. As a result, it reportedly has significant weed growth and will require stabilizing for future grass/crop establishment. There is also a "homestead" area on the western portion of the parcel. This area is outside of Pivot's potential project and was cited as being unkept and visually unappealing to the neighbors. To address the discussed concerns, Pivot representatives met with Brad Moos, a neighbor to the parcel site, and an agronomist, to evaluate potential solutions to both visual and vegetative concerns on the subject property. The parcel currently consists largely of bindweed, which Pivot proposes can be addressed by working with a partner (such as Brad or another neighbor/local resident/area farmer), as a partner, to manage the weeds and plant a starting cover crop, or grass, even before the project has a permit or interconnection agreement. This is a financial risk for Pivot, but one the company may be willing to take to show good faith, stabilize the site, and bring the parcel up to neighboring standards. As a further show of good faith, after the community meeting and hearing neighbors' feedback, the Eifert family has started to clean up their western "homestead" area that is outside of the potential solar site. pivotenergy.net Weld County Treasurer Statement of Taxes Due Account Number R1249186 Assessed To Parcel 080311000028 EIFERT BLANCA LYDIA 46 CAYUGA ST JOHNSTOWN, CO 80534-4649 Legal Description 13618-C PT SE4 11 6 65 BEG N376.64' FROM SE COR SEC S89D43'W 873.70' N220.63' N81D38'W 461.78' NO2D 10'W 848.17' S89D33'E 1362.72' S TO BEG (.88R) (32.118A M/L) Situs Address 34101 COUNTY ROAD 47 WELD Year Tax Charge Tax Interest Fccs Payments Balance 2022 Total Tax Charge $1,743.90 $0.00 $0.00 ($1,743.90) $0.00 $0.00 Grand Total Due as of 12/12/2023 Tax Billed at 2022 Rates for Tax Area 5050 - 5050 Authority WELD COUNTY SCHOOL DIST RE2 NORTHERN COLORADO WATER (NC GALETON FIRE AIMS JUNIOR COLLEGE EATON REC DISTRICT HIGH PLAINS LIBRARY WEST GREELEY CONSERVATION Taxes Billed 2022 * Credit Levy Mill Levy 15.0380000* 34.9570000* 1.0000000 4.0000000* 6.3070000 5.1670000 11810000 0.4140000 Amount Values $374.29 $870.09 $24.89 $99:56 $156.98 $128.61 $79 18 $10.30 70.0640000 $1,74390 AG -FLOOD IRRRIGATED LAND FARM/RANCH RESIDENCE -IM PS OTHER BLDGS,- AGRICULTURAL $0.00 Actual Assessed $20,532 $5,420 $234,784 $16,320 $11,928 $3,150 Total $267,244 $24,890 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. CHANGES MAY OCCUR AND THE TREASURER'S OFFICE WILL NEED TO BE CONTACTED PRIOR TO REMITTANCE AFTER THE FOLLOWING DATES: PERSONAL PROPERTY, REAL PROPERTY, AND MOBILE HOMES - AUGUST 1 TAX LIEN SALE REDEMPTION AMOUNTS MUST BE PAID BY CASH OR CASHIER'S CHECK. POSTMARKS ARE NOT ACCEPTED ON TAX LIEN SALE REDEMPTION PAYMENTS PAYMENTS MUST BE IN OUR OFFICE AND PROCESSED BY THE LAST BUSINESS DAY OF THE MONTH. Weld County Treasurer's Office 1400 N 17th Avenue PO Box 458 Greeley, CO 80632 Phone: 970-400-3290 Pursuant to the Weld County Subdivision Ordinance, the attached Statement of Taxes Due issued by the Weld County Treasurer are evidence that as of this date, all current and prior year taxes related to this •arcel have been paid in full. Date: \7\ t2(20L:i Hello