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Home My WebLink About20223461.tiffUSE BY SPECIAL REVIEW (USR) APPLICATION FOR PLANNING DEPARTMENT USE: AMOUNT $ APPLICATION RECEIVED BY DATE RECEIVED: CASE # ASSIGNED: PLANNER ASSIGNED: P ROPERTY INFORMATION Is the property currently in violation? Parcel Number: 1 S ite Address: N/A 0 5 9 0 No/ 3 Yes Violation Case Number: _3 _0 0 _0 0 2 Legal Description: Lot A of Reception No. 4825199 Section: 3 , Township 4 Within subdivision or townsite? N, Range 67 No/ Yes Name: Water (well permit # or water district tap #): N/A W Zoning District: A Acreage: 37.46 Sewer (On -site wastewater treatment system permit # or sewer account #): N/A Floodplain No/ Yes Geological Hazard P ROJECT U SR Use being applied for: Solar Facilities Name of proposed business: CBEP Solar 7, LLC No/ Yes P ROPERTY OWNER(S) (Attach additional sheets if necessary.) Name: Arthur Griffiths Airport Overlay J No / Yes Company: N/A Phone #: (970) 371-5622 Email: artg9216@yahoo.com Street Address: 9216 COUNTY ROAD 48 1/2 City/State/Zip Code: Johnstown, CO 80534 APPLICANT/AUTHORIZED AGENT (Authorization Form must be included if there is an Authorized Agent) Name: Zach Brammer Company: CBEP Solar 7, LLC Phone #: (970) 425-3175 Email: zach@cloudbreakenergy.com Street Address: PO Box 1255 City/State/Zip Code: Sterling, CO 80751 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. S ignCure Zachary Brammer 8/23/2022 Date Signature Date P rint Print 12/15/21 9 DEPARTMENTS OF PLANNING BUILDING, DEVELOPMENT REVIEW AND ENVIRONMENTAL HEALTH 1555 NORTH 17TH AVENUE GREELEY, CO 80631 AUTHORIZATION FORM Arthur Griffiths CBEP Solar 7, LLC I, (We), , give permission to (Owner — please print) (Authorized Agent/Applicant—please print) to apply for any Planning, Building, Access, Grading or OWTS permits on our behalf, for the property located at (address or parcel number) below: Parcel Number 105903300002 Lot A of Reception No. 4825199 3 4 67 Legal Description: of Section , Township N, Range W Subdivision Name: Property Owners Information: 9216 County Road 48 1/2, Johnstown, CO 80534 Address: Lot Block (970) 371-5622 Phone: E-mail: artg9216@yahoo.com Authorized Agent/Applicant Contact Information: PO Box 1255, Sterling, CO 80751 Address: (970) 425-3175 Phone: Correspondence to be sent to: Owner Additional Info: ■ zach@cloudbreakenergy.com E -Mail: Authorized Agent/Applicant ✓ by: Mail Email 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. Au f" Owner Signatur Date Owner Signature Subscribed and sworn to before me this \ C -In day of \r --A i-1 r1'1n\;7 cc--1;'1-rte My commission expires c\_ L Notary Public MELLISSA ESTHER MILOSKY LOSKY NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20224018697 MY COMMISSION EXPIRES MAY 10, 2026 Date , 202 by CLOUDBREAK DATE: August 23, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: Response to Completeness Review CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM 1. On the application the legal is Lot A not Lot B. o The application form has been updated and is included in Exhibit A below. 2. Submit the Lot Line Adjustment. o The landowner and their legal counsel are handling this and CBEP Solar 7, LLC is not involved. It is our understanding that this Lot Line Adjustment will be submitted this week. 3. Is the land still irrigated and currently being used for crops? Per the response from the 1st USR: "The landowner is designing and installing a new irrigation system and the irrigation of the land is expected to resume next year." Will the landowner be growing crops on his land? Does the landowner still have water rights? o The land was irrigated and used for crops in 2021. This year, the landowner leased their water to a neighbor and planted a sheep -friendly seed mix in order to establish the pasture ahead of the sheep grazing that is set to begin next year. The landowner still has water rights and will be irrigating the sheep forage on his land. 4. Will you be addressing Johnstown's request concerning extension of CR 19 north from HWY 60? o This Project is not adjacent to the planned extension of CR 19 north from HWY 60. CR 19 is expected to expand north along the western boundary of the parcel. This Project is not located near the western boundary of the parcel, so there is plenty of space for the expansion of CR 19. 5. Provide an updated Certificate of Conveyances. o An updated Certificate of Conveyances is included in Exhibit B below. 6. Provide an updated Statement of Taxes. o An updated Statement of Taxes is included in Exhibit C below. We have also made adjustment to the Draft USR Map based on feedback from Front Range Fire Rescue on the Griffiths #1 (CBEP Solar 5, LLC) Project. The updated Draft USR Map can be found in Exhibit D below. The updated Surface Drainage Analysis can be found in Exhibit E below. (970) 425-3175 I I N FO©a CLOU DBREAKEN ERGY.COM I CLOUDBREAKENERGY.COM ERGY.COM CLOUDBREAK CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: Planning Questionnaire 1. Explain the proposed use and business name: o CBEP Solar 7, LLC is proposing to construct and operate the Griffiths #2 Solar Project ("Project") in unincorporated Weld County on Parcel ID number 105903300002. The Project will be a 5 -megawatt community solar garden that is part of the Xcel Energy Solar*Rewards Community program and will be constructed on approximately 32.24 acres of land that is privately owned by Arthur Griffiths. It will consist of solar modules mounted about 5 feet above the existing grade on single -axis trackers, which allow the panels to track the sun from east to west over the course of the day. The project will also include inverters mounted on steel posts or beams, concrete -pad mounted transformers, other electrical equipment, an access road, and a perimeter game fence with gates. 2. Explain the need for the proposed use: o Ensuring long-term energy security for the United States requires a mixture of all different types of energy production, including community solar projects like the Griffiths #2 Solar Project. 3. Describe the current and previous use of the land. o The land is currently used for crop production and has historically been used for crop production as well as oil and gas production. 4. Describe the proximity of the proposed use to residences. o The nearest residence is located about 185 feet away from the Project's northern fenceline, and that residence is owned by the same landowner as the Project's location. 5. Describe the surrounding land uses of the site and how the proposed use is compatible with them. o The surrounding land uses include both industrial uses (the Johnstown Wastewater Treatment Plant, a railroad, a high -voltage Xcel transmission line, Colorado Sweet Gold, Xcel's Johnstown substation) and agricultural land. The (970) 425-3175 I I N FO©a CLOU DBREAKEN ERGY.COM I CLOUDBREAKENERGY.COM ERGY.COM CLOUDBREAK PAGE 2 Project will not interfere with any of the nearby uses. The aesthetics of a community solar garden will fit in well with the surrounding uses. 6. Describe the hours and days of operation (i.e. Monday thru Friday 8:00 a.m. to 5:00 p.m.). o Construction activities will take place Monday through Saturday from 7:00 a.m. to 6:00 p.m. After construction is completed, occasional maintenance will occur between 7:00 a.m. and 7:00 p.m. as needed. There will also be a team of shepherds that will visit the property on a daily basis in the Spring, Summer, and Autumn during daylight hours. 7. Describe the number of employees including full-time, part-time and contractors. If shift work is proposed, detail number of employees, schedule and duration of shifts. o Construction may require up to 50 workers to be on site at one time during the peak of construction, all contractors during the day shift. Construction employees may include up to 15 civil workers, 15 electricians, 15 racking builders, and an additional 5 employees. During operations, two to four employees may be needed for maintenance, as needed, approximately twice a year. 8. Describe the maximum number of users, patrons, members, buyers or other visitors that the site will accommodate at any one time. o No users, patrons, members, buyers, or other visitors are expected to be on the site at any time. 9. List the types and maximum numbers of animals to be on the site at any one time (for dairies, livestock confinement operations, kennels, etc.). o There will be a maximum of 500 sheep to be on the site at any one time for vegetation management. 10. List the types and number of operating and processing equipment. o The Project will consist of approximately 14,500 solar modules mounted about 5 feet above the existing grade on single -axis trackers, which allow the panels to track the sun from east to west of the course of the day. The project will also include 40 inverters mounted on steel posts or beams, 2 concrete pad mounted transformers, and other electrical equipment. 11. List the types, number and uses of the existing and proposed structures. o There are no existing structures on the Project's site. o The proposed structures for the Project will include: (970) 425-3175 I INFO©aCLOUDB!REAKENEPGY.COM I CLOUDBPEAKENEPGY.COM CLOUDBREAK PAGE 3 I Approximately 14,500 solar modules mounted about 5 feet above the existing grade on single -axis trackers, which allow the panels to track the sun from east to west of the course of the day. ii. 40 inverters mounted on steel posts or beams iii. 2 concrete pad mounted transformers iv. Approximately five utility poles that will connect the project to the existing Xcel Energy distribution line on the north side of the property. v. One temporary construction trailer vi. Two 10' x 40' storage containers that will store parts, tools, and equipment on site during construction and operations 12. Describe the size of any stockpile, storage or waste areas. o During construction, a laydown area located within the limits of the Project area will be used to store Project facility items while facilities are installed. During operations, there will be no open stockpiling, uncovered storage, or waste areas. Up to two storage containers approximately 40 -feet in length, 10 feet in width, and 10 feet in height to store spare parts, tools, and equipment on site during construction and operations. 13. Describe the method and time schedule of removal or disposal of debris, junk and other wastes associated with the proposed use. o Debris, junk, and other wastes will be stored in appropriate waste receptacles such as dumpsters during construction. CBEP Solar 7, LLC or its contractors will hire a waste management provider to regularly remove wastes associated with construction of the Project from the receptacles and bring the waste to an approved landfill or disposal site. Maintenance contractors will properly dispose of any wastes generated during operation of the Project by bringing the wastes to an approved landfill or disposal site. 14. Include a timetable showing the periods of time required for the construction of the operation. o Project construction is expected to begin in fall 2022 and is expected to be completed by the end of 2022. Construction activities would follow the estimated timetable below: Construction Phase Season/Duration Construction Begins Fall 2022 Site preparation 1-2 months Structural work 3-5 months (970) 425-3175 I I N FO©a CLOU DBPEAKEN EPGY.COM I CLOU DBPEAKEN EPGY.COM CLOUDBREAK PAGE 4 Electrical work 2-4 months Utility work 2-4 months Construction Completion November/December 2022 15. Describe the proposed and existing lot surface type and the square footage of each type (i.e. asphalt, gravel, landscaping, dirt, grass, buildings). o The existing lot surface type is all vegetated land. The proposed surface types and square footage of each type are listed below: i. Concrete: 1,747 square feet ii. Gravel: 35,830 square feet iii. Landscaping (swales): 5,463 square feet iv. Grass/Sheep Forage: 1,092,718 square feet (remainder of the site with panels, to be seeded) 16. How many parking spaces are proposed? How many handicap -accessible parking spaces are proposed? o No parking spaces or handicap -accessible parking spaces are proposed. 17. Describe the existing and proposed fencing and screening for the site including all parking and outdoor storage areas. o There is no existing fencing or screening on the site. The Project will be surrounded by a game fence that is at least 7 feet tall. CBEP Solar 7, LLC is also partnering with the Audubon Society to plant pollinator habitats along the outside of the eastern, southern, and western fence lines. 18. Describe the existing and proposed landscaping for the site. o There is no existing landscaping on the site. No landscaping is proposed for the site. 19. Describe reclamation procedures to be employed as stages of the operation are phased out or upon cessation of the Use by Special Review activity. o Decommissioning of the Project will commence within 12 months after power production has permanently ceased and be completed within 12 months of the decommissioning work commencing. Decommissioning will include the removal of: i. All non -utility owned equipment, conduits, structures, fencing, and foundations to a depth of at least three (3) feet below grade ii. All fences, graveled areas and access roads unless the property owner agrees for this to remain (970) 425-3175 I INFO©aCLOUDB!REAKENEPGY.COM I CLOUDBPEAKENEPGY.COM CLOUDBREAK PAGES o The property will be restored to a condition reasonably similar to its condition prior to the development of the Project 20. Describe the proposed fire protection measures. o The Project is located within the Front Range Fire Rescue Fire Protection District. The Project will comply with all Colorado Public Utilities Commission requirements as well as national codes and standards for construction, electrical, and fire. A supervisory control and data acquisition (SCADA) system will remotely monitor and control the Project 24 hours per day. The SCADA system will transmit Project data and control signals over the internet. 21. Explain how this proposal is consistent with the Weld County Comprehensive Plan per Chapter 22 of the Weld County Code. o The Project is consistent with the Weld County Comprehensive Plan because it: i. Respects the agricultural heritage of the County by ensuring that the property can remain irrigated and agriculturally productive through sheep grazing on the property. ii. Respects private property rights by allowing the owner of the property t0 do what is in their best interest while complying with local regulations and not interfering with or infringing upon the rights of others. iii. Promotes economic growth and stability by providing a diversified source of income for the landowner, the shepherd, and the County while also offering local residents the opportunity to save money on their electricity bills through Xcel's Solar*Rewards Community Program. iv. Protects the health, safety, and general welfare of the citizens of the County by providing an emission -free source of energy. v. Is harmonious with surrounding agricultural and industrial uses. vi. Supports future mineral development by reserving space on the landowner's property where minerals can be extracted in the future. 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.) o As stated in Chapter 23 of the Code, the 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 and energy development, without the interference of other, incompatible land uses. The Project is consistent with the intent of this zone district because although it is an energy development, agricultural production will continue on the property. 23. Explain how this proposal will be compatible with future development of the surrounding area or adopted master plans of affected municipalities. (970) 425-3175 I I N FO©a CLOU DBPEAKEN EPGY.COM I CLOU DBPEAKEN EPGY.COM CLOUDBREAK PAGE6 o The Project will be located between the Town of Milliken and the Town of Johnstown along County Road 48.5. o The Project's area is included in the 2021 Johnstown Comprehensive Plan as a future Medium Density/Intensity area. As described in the Johnstown Comprehensive Plan, the Medium Density/Intensity area will "generally be characterized by a more balanced, and wider -ranging mix of land uses incorporating walk-up apartment buildings, townhomes, small lot (3,500-5,000 SF) attached and detached single-family housing, in close proximity to neighborhood scale shopping, personal services, restaurants, small medical facilities, and facilities such as libraries and recreational centers. MDI areas may also occur along arterials and other major corridors, and may serve as the next layer away from the High Density/Intensity areas they may neighbor, as a transition to lower density neighborhoods. MDI's will offer complete neighborhoods with a diversity of shops and services, including schools and civic facilities, within walking or biking distance from residential areas; and offer good walking connections along with larger -scale multi -modal trails." The Project is a great way for the Town of Johnstown to transition from Higher Density/Intensity areas to lower density neighborhoods and from the downtown Johnstown area to the west to Milliken's business/industrial area to the east. o After discussing the Project with the Town of Johnstown, CBEP Solar 7, LLC made the following changes to its USR Plan to ensure that the Project does not interfere with the Town's future plans: i. Added a 55' setback along County Road 48.5 to allow for the future expansion of the road. ii. Left space along the western side of the project t0 allow for the expansion of Johnstown's sewage infrastructure. o The Project's area is not included in the adopted master plan of the Town of Milliken, but is located adjacent to an area expected to be a business/industrial area according to the Town's adopted master plan. The project will be compatible with the expected business/industrial use of nearby property within the Town of Milliken because it will not generate any traffic or negatively impact the nearby business and industrial uses. 24. Explain how this proposal impacts the protection of the health, safety and welfare of the inhabitants of the neighborhood and the County o The Project is not anticipated to impact the health, safety, and welfare of Weld County citizens. Designs will comply with Colorado Public Utilities Commission requirements as well as national codes and standards for construction, electrical, and fire. A supervisory control and data acquisition (SCADA) system will remotely monitor and control the Project 24 hours per day. The SCADA system will transmit Project data and control signals over the Internet. (970) 425-3175 I INFO©aCLOUDB!REAKENEPGY.COM I CLOUDBPEAKENEPGY.COM CLOUDBREAK PAGE 7 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. o CBEP Solar 7, LLC and the landowner are working together to install a drip irrigation system alongside the Project so that the land can continue to be irrigated throughout the duration of the Project's life. The land will retain its agricultural use through sheep grazing. 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. o The Project is not located within any Overlay Zoning Districts or Special Flood Hazard Areas. 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. o There are no Federal permits required for the Project. o There are two State permits that will be required. The two required State permits are the Colorado Department of Public Health and Environment Construction Stormwater Discharge Permit and the Colorado Department of Public Health and Environment Air Permit. No applications for State permits have been submitted. (970) 425-3175 I I N FO©a CLOU DBPEAKEN EPGY.COM I CLOU DBPEAKEN EPGY.COM CLOUDBREAK CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: 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 no new access is proposed, if applicable: o There are two existing accesses to the property. One of them is used for residential uses and the other is used for both residential and agricultural uses. i. The access used only for residential use is located approximately 3,100 feet west of Highway 257 and 7,600 feet east of County Road 17. ii. The access used for residential and agricultural purposes is located approximately 6,500 feet east of County Road 17 and approximately 4,200 feet west of Highway 257. o There is one proposed access to the parcel. i. This access will be located approximately 3,300 feet west of Highway 257 and 7,400 feet east of County Road 17. 2. Describe any anticipated change(s) to an existing access, if applicable: o No changes to existing access are anticipated. 3. Describe in detail any existing or proposed access gate including its location: o There will be a 7 foot tall perimeter fence around the Project. There will be an access gate located at the entry to the Project off of County Road 48.5 This location is further detailed in the USR Map. 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: o The parcel to the west has an access that runs right along the property line, approximately 5,500 feet east of County Road 17 and approximately 5,200 feet west of Highway 257. o The parcel to the east is owned by the same landowner as the Project area and does not appear to have any access. (970) 425-3175 I I N FO©a CLOU DBREAKEN ERGY.COM I CLOUDBREAKENERGY.COM ERGY.COM CLOUDBREAK PAGE 2 o The parcel on the opposite side of County Road 48.5 has an access that is approximately 5,500 feet east of County Road 17 and approximately 5,200 feet west of Highway 257. This parcel also has an access directly across County Road 48.5 from the Project access, approximately 6,500 feet east of County Road 17 and approximately 4,250 feet west of Highway 257. 5. Describe any difficulties seeing oncoming traffic from an existing access and any anticipated difficulties seeing oncoming traffic from a proposed access: o Neither of the existing accesses should have any difficulties seeing oncoming traffic. 6. Describe any horizontal curve (using terms like mild curve, sharp curve, reverse curve, etc.) in the vicinity of an existing or proposed access: o Neither of the existing accesses have any horizontal curves in the vicinity. 7. Describe the topography (using terms like flat, slight hills, steep hills, etc.) of the road in the vicinity of an existing or proposed access: o The topography of the road in the vicinity of the two existing accesses is flat. (970) 425-3175 I INFO©aCLOUDBFREAKENEPGY.COM I CLOUDBPEAKENEPGY.COM CLOUDBREAK CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: 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 bill.: o The Project area does not have an existing potable water source. There is no proposed potable water source for the Project. Water for the sheep will be provided by the landowner's Little Thompson Water District account and will be transported from the landowner's residence to the Project via a water trailer. Bottled water will be provided by CBEP Solar 7, LLC or its contractors to the construction team. 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.): o There is no existing on -site sewage disposal system. The operation of the Project is not anticipated to require a sewage disposal system. CBEP Solar 7, LLC or its contractors will provide portable toilets during construction. 3. If storage or warehousing is proposed, what type of items will be stored: o The Project will include up to two 10' x 40' storage containers that will store parts, tools, and equipment on site during construction and operations. 4. Describe where and how storage and/or stockpile of wastes, chemicals, and/or petroleum will occur on this site: o During construction wastes will be stored in appropriate waste receptacles such as dumpsters. CBEP Solar 7, LLC and its contractors will hire a waste (970) 425-3175 I I N FO©a CLOU DBREAKEN ERGY.COM I CLOUDBREAKENERGY.COM ERGY.COM CLOUDBREAK PAGE 2 management provider to regularly remove wastes associated with construction of the Project from the receptacles and bring the waste to an approved landfill o r disposal site. Maintenance contractors will properly dispose of any wastes generated during operation of the Project by bringing the wastes to an approved landfill or disposal site. During construction, up to 1,000 gallons of fuel will be stored on -site in appropriate containers. No fuel will be stored on site for operations. No other chemicals are anticipated to be stored during construction or operation of the Project. 5. If there will be fuel storage on site, indicate the gallons and the secondary containment. State the number of tanks and gallons per tank: o Up to 1,000 gallons of fuel are anticipated to be stored on one site at one time during construction. Storage of fuel will follow applicable secondary containment requirements, as applicable. There will not be fuel storage during o peration of the Project. 6. If there will be washing of vehicles or equipment on site, indicate how the wash water will be contained: o There will not be vehicle washing/equipment on site during the construction and o peration of the Project. 7. If there will be floor drains, indicate how the fluids will be contained: o None of the facilities constructed for the Project will contain floor drains or require wastewater treatment. 8. Indicate if there will be any air emissions (e.g. painting, oil storage, etc.): o Traffic volume, primarily in the form of passenger vehicles, would increase in and around the Project area during construction. The increased traffic would temporarily increase odors and exhaust from vehicle emissions. Odors are anticipated from the operation of heavy machinery during grading, pile driving, and other installation activities at specific time periods throughout construction. Impacts from odors during Project operation would be minimal, likely restricted to emissions from the vehicles of maintenance personnel. 9. Provide a design and operations plan if applicable (e.g. composting, landfills, etc.): o A design and operations plan is not applicable to the Project. 10. Provide a nuisance management plan if applicable (e.g. dairies, feedlots, etc.): o A nuisance management plan is not applicable to the Project. (970) 425-3175 I INFO©aCLOUDB!REAKENEPGY.COM I CLOUDBPEAKENEPGY.COM CLOUDBREAK PAGE 3 11. Additional information may be requested depending on type of land use requested: o If any additional information is required, please don't hesitate to contact Zach Brammeratzach@cloudbreakenergy.com- (970) 425-3175. (970) 425-3175 I INFO©aCLOUDBFREAKENEPGY.COM I CLOUDBPEAKENEPGY.COM CLOUDBREAK CBEP SOLAR 7, LLC PO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: Lighting Plan CBEP Solar 7, LLC is proposing to construct and operate the Griffiths #2 Solar Project in unincorporated Weld County, Colorado. The Project includes construction of 5 Megawatts (MW) of solar electric generation. This Lighting Plan describes lighting during the construction and operations phases of the Project. Temporary Construction Lighting: The need for lighting during construction is expected to be limited because the majority of construction activities will occur during daylight hours. If lighting is needed during construction, lights will be positioned and/or shielded from oncoming traffic and residences in the vicinity of the project site, as necessary. Cutoff -type luminaires would be used where practicable. Individual light sources would not exceed 150,000 lumens per light source (typical of a 1250W metal halide light) and would project 0.1 lumen or less at property lines. Unnecessary lighting will not be used. Lights would not exceed 24 feet in height. Any lighting needed for construction is not shown in the dimensioned elevation drawing of the USR Map due to its temporary nature. Project Operations Lighting: There will be no lighting on the Project after construction is completed. (970) 425-3175 I I N FO©a CLOU DBREAKEN ERGY.COM I CLOUDBREAKENERGY.COM ERGY.COM CLOUDBREAK CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: Landscape and Screening Plan There is currently no landscaping on the Project's site. The Project will be surrounded by a 7 foot tall game fence. Please refer to sheet C-401 of the USR Map for additional detail on the proposed security fence. No screening or landscaping is proposed for this Project. The Project's boundary is more than 500 feet away from all residences that are not owned by the property owner. (970) 425-3175 I I N FO©a CLOU DBREAKEN ERGY.COM I CLOUDBREAKENERGY.COM ERGY.COM CLOUDBREAK CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: Decommissioning Plan Approach CBEP Solar 7, LLC has developed this decommissioning plan for the Griffiths #2 Solar Project, to be implemented after the contracted lease term has ended. CBEP Solar 7, LLC, the owner of the 5 MW AC Solar Energy Facility (SEF) will be responsible for the decommissioning. Decommissioning of the Project will include removal of all above and below -ground infrastructure, including the arrays, inverter structures, concrete foundations and pads, and electrical infrastructure. All fences, graveled areas and access roads shall be removed unless landowner agreement to retain is presented, in writing, in which the property owner agrees for this to remain. The property shall be restored to a condition reasonably similar to its condition prior to development of the 5 MW AC SEE Grading and re -vegetation will comply with all applicable rules and regulations. Exclusions from the decommissioning plan include planting trees, removing internal site roads, and re -grading to previous conditions. All non -utility owned equipment, conduits, structures, fencing, and foundations to a depth of at least 3' below grade shall be removed. Decommissioning activities will follow the CDOT best management practices (BMPs) for erosion and sediment control and stormwater management that are applied during project construction, or any new BMPs relevant at the time. CBEP Solar 7, LLC will decommission the Project once the contracted lease term is over, if the lease term is not extended or renewed. Decommissioning may also be initiated if the project is no longer viable, or in the case of a force majeure event (described below). CBEP Solar 7, LLC will provide notice to Weld County prior to commencement of decommissioning the Project. Estimated Timeline and Cost Decommissioning/reclamation shall commence within 12 months after power production has permanently ceased and be completed within 12 months from the start date of the decommissioning/reclamation work. Decommissioning/reclamation cost estimates, which shall be updated every five years from the establishment and submittal of the Security, shall include all costs associated with the dismantlement, recycling, and safe disposal of facility components and site reclamation activities, including the following elements: (970) 425-3175 I I N FO©a CLOU DBREAKEN ERGY.COM I CLOUDBREAKENERGY.COM ERGY.COM CLOUDBREAK PAGE 2 • All labor, equipment, transportation, and disposal costs associated with the removal all facility components from the facility site • All costs associated with full reclamation of the facility site, including removal of non-native soils, fences, and constructed access roads • All costs associated with reclamation of any primary agricultural soils at the facility site to ensure each area of direct impact shall be materially similar to the condition it was before construction • All decommissioning/reclamation activity management, site supervision, and site safety costs • All other costs, including administration costs, associated with the decommissioning and reclamation of the facility site • The established date of submission of the financial assurance mechanism to Weld County Prior to construction, CBEP Solar 7, LLC will provide the County with an irrevocable standby letter of credit, bond, or alternate form of financial assurance mechanism in an amount sufficient to fund the estimated decommissioning costs required by the Code. The Security shall: • Name the Board of County Commissioners of Weld County as the sole beneficiary of the letter of credit • Be issued by an A -rated financial institution based upon a rating provided by S&P, Moody's, Fitch, AM Best, or other rating agency with similar credentials • Include an automatic extension provision or "evergreen clause" • Be "bankruptcy remote", meaning the financial assurance mechanism will be unaffected by the bankruptcy of the SEF operator Weld County, in its sole discretion, may approve alternative forms of a financial assurance mechanism such as, but not limited to bonds, letters of credit, or other securities, if it finds that such alternative forms will provide an assurance of the availability of financial resources for decommissioning/reclamation that equals or exceeds that provided by the form required herein. Furthermore, Weld County shall have the right to draw upon the irrevocable standby letter of credit, or other form of financial assurance mechanism, to pay for decommissioning in the event that the holder has not commenced decommissioning/reclamation activities within 90 days of the Board of County Commissioners order or resolution directing decommissioning/reclamation. Continued Beneficial Use If prior to decommissioning the Project, the landowner determines that any of the Project components can be beneficially used on the land after disassembly, such items would be (970) 425-3175 I INFO©aCLOUDB!REAKENEPGY.COM I CLOUDBF EAKENElRGY.COM CLOUDBREAK PAGE 3 exempt from the requirements for decommissioning. If a third party acquires the Project or a portion of the Project, such third party would be responsible for providing evidence of a plan of continued beneficial use for their relevant Project components. Force Majeure An exception to these requirements will be allowed for a force majeure event, which is defined as any event or circumstance that wholly or partly prevents or delays the performance of any material obligation arising under the Project permits, but only t0 the extent: • Such event is not within the reasonable control, directly or indirectly, of CBEP Solar 7, LLC (including without limitation events such as fire, earthquake, flood, tornado, hurricane, acts of God and natural disasters; war, civil strife or other similar violence); • CBEP Solar 7, LLC has taken all reasonable precautions and measures to prevent or avoid such event or mitigate the effect of such event on CBEP Solar 7, LLC's ability to perform its obligations under the Project permits and which, by the exercise of due diligence, it has been unable to overcome; and • Such event is not the direct or indirect result of the fault or negligence of CBEP Solar 7, LLC. In the event of a force majeure event, which results in the absence of electrical generation by the Project for 12 months, CBEP Solar 7, LLC must demonstrate to Weld County by the end of the 12 months of non -operation that the Project will be substantially operational and producing electricity within 24 months of the force majeure event. If such a demonstration is not made to Weld County's satisfaction, then decommissioning of the Project must be initiated 18 months after the force majeure event. (970) 425-3175 I INFO©aCLOUDBFREAKENEPGY.COM I CLOUDBPEAKENEPGY.COM CLOUDBREAK CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: Dust Abatement Plan The purpose and intent of this Dust Abatement Plan is to ensure that the Project complies with applicable state and federal air quality standards. The Environmental Protection Agency (EPA) sets forth the National Ambient Air Quality Standards (NAAQs) pursuant to the Clean Air Act. Air quality impacts associated with construction projects generally arise from fugitive dust generation during the operation of heavy equipment. Colorado administers the NAAQS through issuance of the Air Pollutant Emission Notice (APEN). The Project will not exceed the NAAQS and will follow best management practices to ensure that the production of dust will be controlled by the regular application of water to the Project. The Project will obtain an APEN permit prior to construction. Minimal dust is expected to be generated during construction and operations due to the planned use of dust suppression best management practices and soil stabilization following construction and throughout operations. During construction, CBEP Solar 7, LLC and its contractors will control dust by applying water to disturbed soils and soil piles to control fugitive dust from blowing and impairing air quality. Once the construction phase is completed, the site will be visited 1-2 times per year for routine maintenance and as needed for emergency maintenance. Disturbed areas not covered with gravel as part of the Project design will be reseeded with native seed to revegetate disturbed areas and hold soil in place, minimizing fugitive dust impacts during operations. CBEP Solar 7, LLC would employ native revegetation methods or chemical control methods for infestations of weeds during regular maintenance if necessary. (970) 425-3175 I INFO©aCLOUDBREAKENERGY.COM I CLOUDBREAKENERGY.COM CLOUDBREAK CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: Dust and Weed Mitigation Plan Dust Control: • Minimal dust is expected to be generated during construction and operations due to the planned use of dust suppression best management practices and soil stabilization following construction and throughout operations. During construction, CBEP Solar 7, LLC and its contractors will control dust by applying water to disturbed soils and soil piles to control fugitive dust from blowing and impairing air quality. • During the operations of the Project, the land under and around the Project will be irrigated sheep forage, which will mitigate dust. Weed Control: • Once construction is complete, the Project will be seeded with sheep forage and will utilize sheep grazing to maintain the land. The site will be inspected annually by CBEP Solar 7, LLC or its contractors for the presence of invasive species. Minor presences will be managed by cutting and pulling in a manner to not disburse or promote spreading of weed seeds. If a major presence occurs, mowing and the potential application of herbicides will be deployed. Herbicide selection may vary depending on the time of year, the life cycle of the noxious weed species, and preferences of the shepherd and the landowner. (970) 425-3175 I INFO©aCLOUDBREAKENERGY.COM I CLOUDBREAKENERGY.COM CLOUDBREAK CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: Sewage Disposal Documentation No sewage disposal will be required for the operation of the Project. CBEP Solar 7, LLC or its contractor will provide portable toilets during construction. (970) 425-3175 I INFO©aCLOUDBREAKENERGY.COM I CLOUDBREAKENERGY.COM 'TRC Stormwater Drainage Study CL©UDBREAK ENERGY PARTNERS Date: 08/19/2022 To: Cloudbreak Energy From: Kelsey Blaisdell, TRC Companies 799 E 3rd St Suite 4, Durango, CO 81301 Project: Griffiths 2 Solar Project Subject: On -Site Drainage Study PRELIMINARY FOR INTERIM REVIEW ONLY. NOT FOR PERMITTING, BIDDING, NOR CONSTRUCTION. Prepared by or under the Direct Supervision of: Kelsey Blaisdell, P.E. 49698 "8/19/2022" Cloudbreak Energy is pursuing the development of the Griffiths 2 Project, a photovoltaic energy generation facility at a 50.82 -acre site located approximately 1.5 miles northwest of Milliken, Colorado, alongside Co Rd 48.5 (See Appendix A -Site Plans C-301 & C-302). The existing site currently is used for agricultural purposes with approximately 1% slopes. This drainage study was prepared to summarize findings from performing a hydrologic analysis of the project site to identify the potential stormwater impact from the proposed solar project and develop appropriate drainage best management practices (BMPs) to address the impact. This drainage study was prepared to comply with the requirements from Weld County Engineering and Construction Criteria (WCECC) Manual, updated January 2021. Proposed Project The proposed solar project will consist of pole mounted photovoltaic (PV) arrays. Ground disturbance under the panels will be minimal; thus, existing perviousness of the soil will be maintained under the solar cells allowing infiltration. Rainfall runoff from the panels will flow under the pole mounted PV panels matching the pre -development flow patterns. Additional improvements associated with this project are limited to gravel drives for vehicle access and concrete pads for distribution transformers (see Appendix A — Site plans C-301 & C- 302). No public access or utility infrastructure improvements are anticipated at this time. FEMA Floodplains According to FEMA Flood Insurance Rate Map (FIRM) Panel Number 08123C1684E (Jan 2016), the project is located outside the mapped 100 -year floodplain. The risk of flooding within the project site is not anticipated. A copy of the FIRM is included in Appendix B. Onsite Drainage Currently, the existing site does not have any regional retention or water quality features. The soils in the area consist of hydrologic soil group (HSG) A and D soils given by the Natural Resources Conservation Service (NRCS — Appendix C). The proposed development footprint will be in areas with soil type A. Based upon the drainage patterns, the site is divided into three drainage basins labeled Areas A, B, and C with estimated drainage areas of 12.22, 27.22, and 11.37 acres, respectively. Any offsite flows appear to follow the existing ditches and are not expected to affect the project site. See Appendix A for the drainage area maps and details. Stormwater Drainage Study A hydrologic analysis was prepared using the Rational Method based upon requirements in the WCECC Manual. The analysis provided estimates of the peak flow rates for the 100 -year storm under both pre- and post -development conditions. The design rainfall depth for a 1 -hour, 100 - year storm is 2.77 inches based upon NOAA Atlas 14: Precipitation -Frequency Atlas. The Rational Method shown below was used to determine the peak flow rates from each drainage area. Runoff coefficients for various land usages were obtained from Table 5-2, WCECC Manual. The drainage area imperviousness and resulting flow rates from pre -and post -development conditions are summarized below. See Appendix D for the runoff coefficient calculations. Q=C*I*A Where: Q- Runoff rate in cubic feet per second (cfs) /— Rainfall Intensity in inches per hour (in/hr) A -Area of the basin in acres (ac) Pre -development Runoff Calculation Parameters Drainage Area Area, A (ac) Weighted Coefficient, Runoff C Rainfall I (in/hr) Intensity, A 12.22 0.2367 6.02 B 27.22 0.2262 5.61 C 11.37 0.3043 6.33 Post -development Runoff Calculation Parameters Drainage Area Area, Weighted Coefficient, C Rainfall Intensity, I (in/hr) % Added ac/total Impervious ac) ious A 12.22 0.2424 6.02 1% B 27.22 0.2317 5.61 1% C 11.37 0.3066 6.33 1% 100 -year Runoff Calculation Results Drainage Area development Peak Pre- Flow (cfs) Rate development Peak Post Flow (cfs) - Rate DIFFERENCE (cfs) A 17.42 17.84 0.42 B 34.51 35.35 0.84 C 21.89 22.05 0.16 Stormwater Drainage Study Based upon the above results, the increase of impervious area has shown to result in little change (less than 2%) between the pre -development and post -development runoff peak flows. Because of this, a detention basin facility will not be proposed. Instead, grass swales will be introduced within the project site boundary to dissipate energy and attenuate the minimal flow increase from gravel roads and concrete pads. Erosion Control/Stormwater Management Plan Erosion control features such as silt fences and a grass swale (also mentioned above) will be installed on the site prior to construction activities. Such measures will be included in the e rosion control plan and detail sheets within the final construction documents. Grass swale sizing calculations are summarized in Appendix E. Conclusion The drainage study and attached drainage maps were produced in accordance with requirements from Weld County Engineering and Construction Criteria (WCECC) Manual, u pdated January 2021. The existing stormwater flow characteristics are expected to remain u nchanged and increases in peak flow rates have been proven to be negligible. A basin type of stormwater detention would not be necessary. Improvements proposed with the project site are limited to a gravel paved drive and two small concrete distribution transformer pads. No public access or utility infrastructure improvements are anticipated at this time. The proposed development will not alter historic drainage patterns and adjacent and downstream property owners. Stormwater Drainage Study References 1. Weld County, Weld County Engineering and Construction Criteria Manual, January 2021. 2. Web Soil Survey, Natural Resources Conservation Service, United States Department of Agriculture. Online at: http://websoilsurvey.nrcs.usda.gov, accessed December 2021. 3. Flood Insurance Rate Map, Weld County, Texas and Incorporated Areas, Jan 16, 2016, Map Number 08123C1684E, Federal Emergency Management Agency. 4. NOAA Atlas 14, Volume 11, Version 2. ESRI Maps. USGS. Sanja Perica, Sandra Pavlovic, Michael St. Laurent, Carl Trypaluk, Dale Unruh, Orlan Wilhite. Appendices A. Site Plans C-301 & C-302 5-7 B. FEMA Firmette Map 8-9 C. NRCS Soil Layer Map 10-14 D. Rational Method Calculations 15-29 Existing Calculations 16 Proposed Calculations 23 E. Grass Swale Calculations 30-33 Stormwater Drainage Study Appendix A: SITE PLANS C301 & C302 Stormwater Drainage Study Appendix B: FEMA FIRMETTE MAP IS PANEL 1682 rank Alger - • I L I • • e �• S. • • • ! • • • 4 a .a • • t -r o • a o • ® o • • -P,r • • • • O •u.1 •' • • II • • • • • d • • se • re • a „♦ • • • • • a •• •-' rat • • r"' •; t. • • • •• • r • • !f' • • • • '• 4 • , • •`it• a 0 • 1 0 _ e • • • • 0 • 9 • • • • • • • a S. a i • • • • • • • ♦ • a,• O ♦ - • •, • • •'• • • • ' • • 5i • • •- • • • !•; ♦ • 0 • • + • • • • • It 4 • • • • • 4• • e" • *t • • • • •'.• • .On • S. •l • •'x.• • S. • • is'o • • ♦ = • • ♦ O a • -"a • • • • • • r ws: • • • •^ s .'_,• e�i ` fie•• • • • • • "'• d' • • • • •, a • • • • • a • • -.• • _ =,.• -• • • • • • ,i . • • • • • • • e • ♦ • • • • • • • •. ••. • ♦ • ♦ • • ai 9 .. • • • • • • • ..• a • • • • • • • 4 • •�•: • ♦ • • • • • • • • • • • F ♦ • • • • • ` • • • • e • • • • • • • • • tt • '• • • • �''' • • • • ♦ : '• • • i 4' • • __ • • • ♦ • • -• • • • 0 4 • • • • • • 7 %;- • • • • • • • • • :•' • • O • • • • ,• • • i'• • • •,•• ! ft 4 • -• • • • • • •• o , d.. • • • • • • _• . • • e • • •-•� • • • • •Y'• Jo • -• • •'Tr•+ • • m1• " • • ♦ • • • • a •. • 9 0' • • • • • • p • • '• • 0 • • 0 e • • • • • a e • • •i�• 0 O I. • • • • • • • • • • • o •. a, • • • • o • • • • .•a* • •-4 � .. - _ ' • • • •' • • • • •-'• •• 'O • `- .0•'♦-.,• • • 0 • • ••' '♦ a a , • , ▪ e ,F �. • 40° 2 FLO LIT 013 MAP SCALE 1" = 500' 250 0 500 0 1000 FEET METERS 150 300 1111 PANEL 1684E FIRM FLOOD INSURANCE RATE MAP WELD COUNTY, COLORADO AND INCORPORATED AREAS PANEL 1684 OF 2250 (SEE MAP INDEX FOR FIRM PANEL LAYOUT) CONTAINS: COMMUNITY MILLIKEN, TOWN OF WELD COUNTY NUMBER 080187 080266 PANEL SUFFIX E 1684 E 1684 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 08123C1684E EFFECTIVE DATE JANUARY 20, 2016 Federal Emergency Management Agency This is an official copy of a portion of the above referenced flood map. It was extracted using FIRMette - Desktop version 3.0. This map does not reflect changes or amendments which may have been made subsequent to the date on the title block.. Further information about National Flood Insurance Program flood hazard maps is available at http://www.msc.fema.gov/. Stormwater Drainage Study Appendix C: NRCS SOIL LAYER MAP 40° 20' 31" N 40° 20' 12" N S N- r S 3 r U) N Lt) 0 510000 510100 510200 510300 510400 510500 510600 510700 510800 104° 5Z 57" W 510000 510100 510200 Hydrologic Soil Group —Weld County, Colorado, Southern Part (Griffiths Parcel 2 Boundary) 510300 Map Scale: 1:4,260 if printed on A landscape (11" x 8.5") sheet 0 50 100 200 Meters 300 510400 Feet 0 200 400 800 1200 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 510500 510600 510700 510800 104° 52' 17" W 510900 510900 N 'N L() 40° 20' 31" N 40° 20' 12" N ,b Natural Resources lain Conservation Service Web Soil Survey National Cooperative Soil Survey 11 12/28/2021 Page 1 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part (Griffiths Parcel 2 Boundary) MAP LEGEND Area of Interest (AO!) Area of Interest (A01) ) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines 0 0 A A/D B B/D C C/D D Not rated or not available Soil Rating Points II O O O A A/D B B/D C C/D D Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background ,; 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-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 20, Aug 31, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 -Aug 10, 2018 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. ,b Natural Resources lain Conservation Service Web Soil Survey National Cooperative Soil Survey 12 12/28/2021 Page 2 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part Griffiths Parcel 2 Boundary Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 3 Aquolls gravelly and Aquents, substratum D 3.9 7.5% 52 Otero sandy loam, percent slopes 3 to 5 A 15.9 30.7% 76 Vona sandy loam, percent slopes 1 to 3 A 31.9 61.8% Totals for Area of Interest 51.7 100.0% Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, BID, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or CID), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. e Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey 12/28/2021 Page 3 of 4 13 Hydrologic Soil Group —Weld County, Colorado, Southern Part Griffiths Parcel 2 Boundary Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified Tie -break Rule: Higher e Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey 12/28/2021 Page 4of4 14 Stormwater Drainage Study Appendix D: RATIONAL METHOD CALCULATIONS EXISTING CALCULATIONS Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - A EX Illustration Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 11.62 0.22 2.56 D SOILS 0.60 0.56 0.34 sum: 12.22 sum: 2.89 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2367 LE : flow Direction Caton. eat Bomar 6 *See sheet "Design Info" for inperviousness-based runoff coefficient values. CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - A EX I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 12.22 2.00 A II. Rainfall Information Design Storm Return Period, Tr = 01= C2= C3= P1= Acres 0/0 A, B, C,orD I (inch/hr) = Cl * P1 /(C2 + Td)AC3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.24 0.00 0.08 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND (,J Deeming, Flow Di cdon Catic lute nt B ounitary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0050 300 0.08 N/A 0.12 40.10 1 0.0140 854 2 3 4 5 Sum 1,154 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = 2.68 6.02 5.00 0.59 24.06 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Rainfall Intensity at User -Defined Tc, I = 6.02 inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 64.15 16.41 16.41 7.74 17.42 17.42 cfs cfs cfs GRIFFITHS PARCEL 2 RATIONAL CALCS Area A EX 100 Yrs.xls, Tc and PeakQ 8/19/2022, 12:00 PM Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - B EX Illustration Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 26.72 0.22 5.88 D SOILS 0.50 0.56 0.28 Sum: 27.22 sum: 6.16 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2262 LE : flow Direction Caton. eat Bomar 6 *See sheet "Design Info" for inperviousness-based runoff coefficient values. CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - B EX I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 27.22 2.00 A II. Rainfall Information Design Storm Return Period, Tr = 01= C2= C3= P1= Acres 0/0 A, B, C,orD I (inch/hr) = Cl * P1 /(C2 + Td)AC3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.23 0.00 0.08 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND (,J Deeming, Flow Direction Catic lute nt B ounitary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0070 300 0.08 N/A 0.14 35.88 1 0.0110 1,310 2 3 4 5 Sum 1,610 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = 2.35 5.61 5.00 0.52 41.63 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Rainfall Intensity at User -Defined Tc, I = 5.61 inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 77.52 18.94 18.94 14.46 34.51 34.51 cfs cfs cfs GRIFFITHS PARCEL 2 RATIONAL CALCS Area B EX 100 Yrs.xls, Tc and PeakQ 8/19/2022, 12:01 PM Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - C EX Illustration Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 8.55 0.22 1.88 D SOILS 2.82 0.56 1.58 sum: 11.37 sum: 3.46 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.3043 LE : flow Direction Caton. eat Bomar 6 *See sheet "Design Info" for inperviousness-based runoff coefficient values. CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - C EX I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 11.37 2.00 A II. Rainfall Information Design Storm Return Period, Tr = 01= C2= C3= P1= Acres 0/0 A, B, C,orD I (inch/hr) = Cl * P1 /(C2 + Td)AC3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.30 0.00 0.08 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND (,J Deeming, Flow Di cdon Catic lute nt B ounitary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0010 300 0.08 N/A 0.07 68.20 1 0.0170 566 2 3 4 5 Sum 866 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = 2.25 6.33 5.00 0.65 14.47 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Rainfall Intensity at User -Defined Tc, I = 6.33 inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 82.67 14.81 14.81 7.77 21.89 21.89 cfs cfs cfs GRIFFITHS PARCEL 2 RATIONAL CALCS Area C EX 100 Yrs.xls, Tc and PeakQ 8/19/2022, 12:04 PM PROPOSED CALCUATIONS Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - A PR Illustration LEGEND: Flow Diret tion C at ctm ent Bomar Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 11.31 0.22 2.49 D SOILS ` 0.60 0.56 0.34 A SOIL GRAVEL ROAD 0.29 0.41 0.12 A SOIL ASPHALT 0.02 0.96 0.02 sum: 12.22 sum: 2.96 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2424 *See sheet "Design Info" for inperviousness-based runoff coefficient values. 1 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - A PR I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 12.22 2.00 A II. Rainfall Information Design Storm Return Period, Tr = 01= C2= C3= P1= Acres 0/0 A, B, C,orD I (inch/hr) = Cl * P1 /(C2 + Td)AC3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.24 0.00 0.08 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND (,J Deeming, Flow Di cdon Catic lute nt B ounitary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0050 300 0.08 N/A 0.12 40.10 1 0.0140 854 2 3 4 5 Sum 1,154 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = 2.15 6.02 2.50 0.30 48.12 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Rainfall Intensity at User -Defined Tc, I = 6.02 inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 88.21 16.41 16.41 6.35 17.84 17.84 cfs cfs cfs GRIFFITHS PARCEL 2 RATIONAL CALCS Area A PR 100 Yrs.xls, Tc and PeakQ 8/19/2022, 11:36 AM Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - B PR Illustration LEAD: Flow Dive Lion C at elm' eat Bear _T L Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. _ A C* CA input input input output A SOILS 26.00 0.22 5.72 D SOILS 0.50 0.56 0.28 A SOILS GRAVEL ROAD 0.70 0.41 0.29 A SOILS CONCRETE PADS _ 0.02 0.96 0.02 Sum: 27.22 Sum: 6.31 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2317 *See sheet "Design Info" for inperviousness-based runoff coefficient values. 1 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - B PR I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 27.22 2.00 A II. Rainfall Information Design Storm Return Period, Tr = 01= C2= C3= P1= Acres 0/0 A, B, C,orD I (inch/hr) = Cl * P1 /(C2 + Td)AC3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.23 0.00 0.08 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND (,J Deeming, Flow Di cdon Catic lute nt B ounitary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0070 300 0.08 N/A 0.14 35.88 1 0.0110 1,310 2 3 4 5 Sum 1,610 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = 1.73 5.61 2.50 0.26 83.27 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Rainfall Intensity at User -Defined Tc, I = 5.61 inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 119.15 18.94 18.94 10.91 35.35 35.35 cfs cfs cfs GRIFFITHS PARCEL 2 RATIONAL CALCS Area B PR 100 Yrs.xls, Tc and PeakQ 8/19/2022, 11:56 AM Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - C PR Illustration LEGEND: Flow Direction Cates eat Boundary Instructions: For each catchment subarea, enter values for A and C. Subarea Area _ Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 8.47 0.22 1.86 D SOILS 2.82 0.56 1.58 A SOIL GRAVEL ROAD 0.06 0.41 0.02 A SOIL CONCRETE PADS 0.02 0.96 0.02 Sum: 11.37 Sum: 3.49 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.3066 *See sheet "Design Info" for inperviousness-based runoff coefficient values. 1 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - C PR I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 11.37 2.00 A II. Rainfall Information Design Storm Return Period, Tr = 01= C2= C3= P1= Acres 0/0 A, B, C,orD I (inch/hr) = Cl * P1 /(C2 + Td)AC3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.31 0.00 0.08 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration LEGEND (,J Deeming, Flow Di cdon Catic lute nt B ounitary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0010 300 0.08 N/A 0.07 68.20 1 0.0170 566 2 3 4 5 Sum 866 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = 2.00 6.33 2.50 0.33 28.94 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Rainfall Intensity at User -Defined Tc, I = 6.33 inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 97.14 14.81 14.81 6.98 22.05 22.05 cfs cfs cfs GRIFFITHS PARCEL 2 RATIONAL CALCS Area C PR 100 Yrs.xls, Tc and PeakQ 8/19/2022, 11:50 AM Stormwater Drainage Study Appendix E: GRASS SWALE CALCULATIONS Hydraulic Analysis Report BY: TRC DATE: 08/19/2022 SHEET NO.: 31 Project Data Project Title: Cloudbreak - Griffiths 2 Designer: TRC (TH) Project Date: Tuesday, December 28, 2021 Project Units: U.S. Customary Units Notes: Channel Analysis: GS -A Notes: input Parameters Channel Type: Trapezoidal Side Slope 1 (Z1): 4.0000 ft/ft Side Slope 2 (Z2): 4.0000 ft/ft Channel Width 2.00 ft Longitudinal Slope: 0.0140 ft/ft Manning's n: 0.0880 Depth 0.5000 ft Result Parameters Flow 1.8953 cfs MAX CAPACITY Area of Flow 2.0000 ft^2 Wetted Perimeter 6.1231 ft Hydraulic Radius 0.3266 ft Average Velocity 0.9476 ft/s Top Width 6.0000 ft Froude Number: 0.2892 31 Critical Depth 0.2540 ft Critical Velocity 2.4735 ft/s Critical Slope: 0.2005 ft/ft Critical Top Width 4.03 ft Calculated Max Shear Stress 0.43681b/ft^2 Calculated Avg Shear Stress 0.2853 lb/ft^2 Channel Analysis: GS -B Notes: Input Parameters Channel Type: Trapezoidal Side Slope 1 (Z1): 4.0000 ft/ft Side Slope 2 (Z2): 4.0000 ft/ft Channel Width 2.00 ft Longitudinal Slope: 0.0190 ft/ft Manning's n: 0.0880 Depth 0.5000 ft Result Parameters Flow 2.2079 cfs Area of Flow 2.0000 ft^2 Wetted Perimeter 6.1231 ft Hydraulic Radius 0.3266 ft Average Velocity 1.1040 ft/s Top Width 6.0000 ft Froude Number: 0.3370 Critical Depth 0.2770 ft Critical Velocity 2.5641 ft/s 32 Critical Slope: 0.1959 ft/ft Critical Top Width 4.22 ft Calculated Max Shear Stress 0.59281b/ft^2 Calculated Avg Shear Stress 0.38731b/ft^2 33 'TRC Stormwater Drainage Study CL©UDBREAK ENERGY PARTNERS Date: 05/11/2022 To: Cloudbreak Energy From: Kelsey Blaisdell, TRC Companies 799 E 3rd St Suite 4, Durango, CO 81301 Project: Griffiths 2 Solar Project Subject: On -Site Drainage Study PRELIMINARY FOR INTERIM REVIEW ONLY. NOT FOR PERMITTING, BIDDING, NOR CONSTRUCTION. Prepared by or under the Direct Supervision of: Kelsey Blaisdell, P.E. 49698 "5/16/2022" Cloudbreak Energy is pursuing development of the Griffiths 2 Project, a photovoltaic energy generation facility at a 51.6 -acre site located approximately 1.5 miles northwest of Milliken, Colorado, alongside Co Rd 48.5 (See Appendix A -Site Plans C301 & C302). The existing site currently is used for agricultural purposes with approximately 1% slopes. This drainage study was prepared to summarize findings from performing a hydrologic analysis of the project site to identify the potential storm water impact from the proposed solar project and develop appropriate drainage best management practices (BMPs) to address the impact. This drainage study was prepared to comply with the requirements from Weld County Engineering and Construction Criteria (WCECC) Manual, updated January 2021. Proposed Project The proposed solar project will consist of pole mounted photovoltaic (PV) arrays. Ground disturbance under the panels will be minimal; thus, existing perviousness of the soil will be maintained under the solar cells allowing infiltration. Rainfall runoff from the panels will flow under the pole mounted PV panels matching the pre -development flow patterns. Additional improvements associated with this project are limited to gravel drives for vehicle access and concrete pads for distribution transformers (see Appendix A — Site plans C301 & C302). No public access or utility infrastructure improvements are anticipated at this time. FEMA Floodplains According to FEMA Flood Insurance Rate Map (FIRM) Panel Number 08123C1684E (Jan 2016), the project is located outside the mapped 100 -year floodplain. Risk of flooding within the project site is not anticipated. A copy of the FIRM is included in Appendix B. Onsite Drainage Currently, the existing site does not have any regional retention or water quality features. The soils in the area consist of hydrologic soil group (HSG) A and D soils given by the Natural Resources Conservation Service (NRCS — Appendix C). The proposed development footprint will be located in the areas with soil type A. Based upon the drainage patterns, the site is divided into three drainage basins labeled as Areas A, B, and C with estimated drainage areas of 12.22, 27.20, and 12.22 acres, respectively. Any offsite flows appear to follow the existing ditches and are not expected to affect the project site. See Appendix A for the drainage area maps and details. Stormwater Drainage Study A hydrologic analysis was prepared using the Rational Method based upon requirements in the WCECC Manual. The analysis provided estimates of the peak flow rates for the 100 -year storm under both pre- and post -development conditions. The design rainfall depth for a 1 -hour, 100 - year storm is 2.77 inches based upon NOAA Atlas 14: Precipitation -Frequency Atlas. The Rational Method showing below was used to determine the peak flow rates from each drainage area. Runoff coefficients for various land usages were obtained from Table 5-2, WCECC Manual. The drainage area imperviousness and resulting flow rates from pre -and post -development conditions are summarized below. See Appendix D for the runoff coefficient calculations. Q=C*I*A Where: Q- Runoff rate in cubic feet per second (cfs) /— Rainfall Intensity in inches per hour (in/hr) A -Area of the basin in acres (ac) Pre -development Runoff Calculation Parameters Drainage Area Area, A (ac) Weighted Coefficient, Runoff C Rainfall I (in/hr) Intensity, A 12.22 0.2367 6.02 B 27.20 0.2263 5.61 C 12.22 0.2985 6.33 Post -development Runoff Calculation Parameters Drainage Area Area, Weighted Coefficient, C Rainfall Intensity, I (in/hr) % Added ac/total Impervious ac) ious A 12.22 0.2392 6.02 1% B 27.20 0.2315 5.61 3% C 12.22 0.2985 6.33 0% 100 -year Runoff Calculation Results Drainage Area development Peak Pre- Flow (cfs) Rate development Peak Post Flow (cfs) - Rate DIFFERENCE (cfs) A 17.42 17.61 0.19 B 34.50 35.46 0.96 C 23.08 23.08 0.00 Stormwater Drainage Study Based upon the above results, the increase of impervious area has shown to result in little change (less than 3%) between the pre -development and post -development runoff peak flows. Because of this, a detention basin facility will not be proposed. Instead, grass swales will be introduced within the project site boundary to dissipate energy and attenuate the minimal flow increase from gravel roads and concrete pads. Erosion Control/Stormwater Management Plan Erosion control features such as silt fences and a grass swale (also mentioned above) will be installed on the site prior to construction activities. Such measures will be included in the e rosion control plan and detail sheets within the final construction documents. Grass swale sizing calculations are summarized in Appendix E. Conclusion The drainage study and attached drainage maps were produced in accordance with requirements from Weld County Engineering and Construction Criteria (WCECC) Manual, u pdated January 2021. The existing storm water flow characteristics are expected to remain u nchanged and increases in peak flow rates have been proven to be negligible. A basin type of storm water detention would not be necessary. Improvements proposed with the project site are limited to a gravel paved drive and two small concrete distribution transformer pads. No public access or utility infrastructure improvements are anticipated at this time. Proposed development will not alter historic drainage patterns and adjacent and downstream property owners. Stormwater Drainage Study References 1. Weld County, Weld County Engineering and Construction Criteria Manual, January 2021. 2. Web Soil Survey, Natural Resources Conservation Service, United States Department of Agriculture. Online at: http://websoilsurvey.nrcs.usda.gov, accessed December 2021. 3. Flood Insurance Rate Map, Weld County, Texas and Incorporated Areas, Jan 16, 2016, Map Number 08123C1684E, Federal Emergency Management Agency. 4. NOAA Atlas 14, Volume 11, Version 2. ESRI Maps. USGS. Sanja Perica, Sandra Pavlovic, Michael St. Laurent, Carl Trypaluk, Dale Unruh, Orlan Wilhite. Appendices A. Site Plans C-301 & C-302 5-7 B. FEMA Firmette Map 8-9 C. NRCS Soil Layer Map 10-14 D. Rational Method Calculations 15-29 Existing Calculations 16 Proposed Calculations 23 E. Grass Swale Calculations 30-33 Stormwater Drainage Study Appendix A: SITE PLANS C301 & C302 Stormwater Drainage Study Appendix B: FEMA FIRMETTE MAP IS PANEL 1682 rank Alger - • I L I • • e �• S. • • • ! • • • 4 a .a • • t -r o • a o • ® o • • -P,r • • • • O •u.1 •' • • II • • • • • d • • se • re • a „♦ • • • • • a •• •-' rat • • r"' •; t. • • • •• • r • • !f' • • • • '• 4 • , • •`it• a 0 • 1 0 _ e • • • • 0 • 9 • • • • • • • a S. a i • • • • • • • ♦ • a,• O ♦ - • •, • • •'• • • • ' • • 5i • • •- • • • !•; ♦ • 0 • • + • • • • • It 4 • • • • • 4• • e" • *t • • • • •'.• • .On • S. •l • •'x.• • S. • • is'o • • ♦ = • • ♦ O a • -"a • • • • • • r ws: • • • •^ s .'_,• e�i ` fie•• • • • • • "'• d' • • • • •, a • • • • • a • • -.• • _ =,.• -• • • • • • ,i . • • • • • • • e • ♦ • • • • • • • •. ••. • ♦ • ♦ • • ai 9 .. • • • • • • • ..• a • • • • • • • 4 • •�•: • ♦ • • • • • • • • • • • F ♦ • • • • • ` • • • • e • • • • • • • • • tt • '• • • • �''' • • • • ♦ : '• • • i 4' • • __ • • • ♦ • • -• • • • 0 4 • • • • • • 7 %;- • • • • • • • • • :•' • • O • • • • ,• • • i'• • • •,•• ! ft 4 • -• • • • • • •• o , d.. • • • • • • _• . • • e • • •-•� • • • • •Y'• Jo • -• • •'Tr•+ • • m1• " • • ♦ • • • • a •. • 9 0' • • • • • • p • • '• • 0 • • 0 e • • • • • a e • • •i�• 0 O I. • • • • • • • • • • • o •. a, • • • • o • • • • .•a* • •-4 � .. - _ ' • • • •' • • • • •-'• •• 'O • `- .0•'♦-.,• • • 0 • • ••' '♦ a a , • , ▪ e ,F �. • 40° 2 FLO LIT 013 MAP SCALE 1" = 500' 250 0 500 0 1000 FEET METERS 150 300 1111 PANEL 1684E FIRM FLOOD INSURANCE RATE MAP WELD COUNTY, COLORADO AND INCORPORATED AREAS PANEL 1684 OF 2250 (SEE MAP INDEX FOR FIRM PANEL LAYOUT) CONTAINS: COMMUNITY MILLIKEN, TOWN OF WELD COUNTY NUMBER 080187 080266 PANEL SUFFIX E 1684 E 1684 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 08123C1684E EFFECTIVE DATE JANUARY 20, 2016 Federal Emergency Management Agency This is an official copy of a portion of the above referenced flood map. It was extracted using FIRMette - Desktop version 3.0. This map does not reflect changes or amendments which may have been made subsequent to the date on the title block.. Further information about National Flood Insurance Program flood hazard maps is available at http://www.msc.fema.gov/. Stormwater Drainage Study Appendix C: NRCS SOIL LAYER MAP 40° 20' 31" N 40° 20' 12" N S N- r S 3 r U) N Lt) 0 510000 510100 510200 510300 510400 510500 510600 510700 510800 104° 5Z 57" W 510000 510100 510200 Hydrologic Soil Group —Weld County, Colorado, Southern Part (Griffiths Parcel 2 Boundary) 510300 Map Scale: 1:4,260 if printed on A landscape (11" x 8.5") sheet 0 50 100 200 Meters 300 510400 Feet 0 200 400 800 1200 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 510500 510600 510700 510800 104° 52' 17" W 510900 510900 N 'N L() 40° 20' 31" N 40° 20' 12" N ,b Natural Resources lain Conservation Service Web Soil Survey National Cooperative Soil Survey 11 12/28/2021 Page 1 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part (Griffiths Parcel 2 Boundary) MAP LEGEND Area of Interest (AO!) Area of Interest (A01) ) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines 0 0 A A/D B B/D C C/D D Not rated or not available Soil Rating Points II O O O A A/D B B/D C C/D D Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background ,; 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-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 20, Aug 31, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 19, 2018 -Aug 10, 2018 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. ,b Natural Resources lain Conservation Service Web Soil Survey National Cooperative Soil Survey 12 12/28/2021 Page 2 of 4 Hydrologic Soil Group —Weld County, Colorado, Southern Part Griffiths Parcel 2 Boundary Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 3 Aquolls gravelly and Aquents, substratum D 3.9 7.5% 52 Otero sandy loam, percent slopes 3 to 5 A 15.9 30.7% 76 Vona sandy loam, percent slopes 1 to 3 A 31.9 61.8% Totals for Area of Interest 51.7 100.0% Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, BID, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or CID), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. e Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey 12/28/2021 Page 3 of 4 13 Hydrologic Soil Group —Weld County, Colorado, Southern Part Griffiths Parcel 2 Boundary Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified Tie -break Rule: Higher e Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey 12/28/2021 Page 4of4 14 Stormwater Drainage Study Appendix D: RATIONAL METHOD CALCULATIONS EXISTING CALCULATIONS BY: TRC DATE: 05/16/2022 SHEET NO.: 17 Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - A EX Illustration Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 11.62 0.22 2.56 D SOILS 0.60 0.56 0.34 sum: 12.22 Sum: 2.89 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2367 LEr : Flow Direction C at dim era Borunry 6 *See sheet "Design Info" for inperviousness-based runoff coefficient values. GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area A EX 100 Yrs, Weighted C 1/13/2022, 11:34 AM 17 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - A EX I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 12.22 2.00 A II. Rainfall Information Design Storm Return Period, Tr = O1= C2= C3= P1= Acres A, B, C, or D I (inch/hr) = C1 * P1 /(C2 + Td)^C3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of O2) (input the value of O3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.24 0.00 0.08 Reach :3 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration Reach 2 c. Reach 1 overland flow LEGEND LLf` B Flow Direction C at a Junent B o uiidary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0050 300 0.08 N/A 0.12 40.10 1 0.0140 854 2 3 4 5 Sum 1,154 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 2.68 6.02 6.02 5.00 0.59 24.06 Computed Tc = 64.15 Regional Tc = 16.41 User -Entered Tc = 16.41 inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 7.74 17.42 17.42 cfs cfs cfs GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area CALCS Area A EX 100 Yrs, Tc and PeakQ 1/13/2022, 11:34 AM 18 Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - B EX Illustration Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 26/0 0.22 5.87 D SOILS 0.50 0.56 0.28 sum: 27.20 Sum: 6.15 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2263 LEr : Flow Direction C at dim era Borunry 6 *See sheet "Design Info" for inperviousness-based runoff coefficient values. GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area B EX 100 Yrs, Weighted C 1/13/2022, 11:43 AM 19 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - B EX I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 27.20 2.00 A II. Rainfall Information Design Storm Return Period, Tr = O1= C2= C3= P1= Acres A, B, C, or D I (inch/hr) = C1 * P1 /(C2 + Td)^C3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of O2) (input the value of O3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.23 0.00 0.08 Reach :3 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration Reach 2 c. Reach 1 overland flow LEGEND LLf` B Flow Direction C at a Junent B o uiidary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0070 300 0.08 1 0.0110 1,310 2 3 4 5 Sum 1,610 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 2.35 5.61 5.61 N/A 0.14 35.88 5.00 0.52 41.63 Computed Tc = 77.52 Regional Tc = 18.94 User -Entered Tc = 18.94 inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 14.46 34.50 34.50 cfs cfs cfs GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area CALCS Area B EX 100 Yrs, Tc and PeakQ 1/13/2022, 11:43 AM 20 Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - C EX Illustration Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 9.40 0.22 2.07 D SOILS 2.82 0.56 1.58 sum: 12.22 sum: 3.65 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2985 LEr : Flow Direction C at dim era Borunry 6 *See sheet "Design Info" for inperviousness-based runoff coefficient values. GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area C EX 100 Yrs, Weighted C 1/11/2022, 1:45 PM 21 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - C EX I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 12.22 2.00 A II. Rainfall Information Design Storm Return Period, Tr = O1= C2= C3= P1= Acres A, B, C, or D I (inch/hr) = C1 * P1 /(C2 + Td)^C3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of O2) (input the value of O3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.30 0.00 0.08 Reach :3 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration Reach 2 c. Reach 1 overland flow LEGEND LLf` B Flow Direction C at a Junent B o uiidary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0010 300 0.08 N/A 0.07 68.20 1 0.0170 566 2 3 4 5 Sum 866 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 2.25 6.33 6.33 5.00 0.65 14.47 Computed Tc = 82.67 Regional Tc = 14.81 User -Entered Tc = 14.81 inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 8.19 23.08 23.08 cfs cfs cfs GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area CALCS Area C EX 100 Yrs, Tc and PeakQ 1/11/2022, 1:45 PM 22 PROPOSED CALCUATIONS BY: TRC DATE: 05/16/2022 SHEET NO.: 24 Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - A PR Illustration LEGEND: Flow Direction Cat chi ent Boundary y Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 11.46 0.22 2.52 D SOILS 0.60 0.56 0.34 A SOIL GRAVEL ROAD 0.16 0.41 0.07 sum: 12.22 sum: 2.92 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2392 *See sheet "Design Info" for inperviousness-based runoff coefficient values. GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area A PR 100 Yrs, Weighted C 1/13/2022, 11:37 AM 24 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - A PR I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 12.22 2.00 A II. Rainfall Information Design Storm Return Period, Tr = O1= C2= C3= P1= Acres A, B, C, or D I (inch/hr) = C1 * P1 /(C2 + Td)^C3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of O2) (input the value of O3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.24 0.00 0.08 Reach :3 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration Reach 2 c. Reach 1 overland flow LEGEND LLf` B Flow Direction C at a Junent B o uiidary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0050 300 0.08 N/A 0.12 40.10 1 0.0140 854 2 3 4 5 Sum 1,154 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 2.15 6.02 6.02 2.50 0.30 48.12 Computed Tc = 88.21 Regional Tc = 16.41 User -Entered Tc = 16.41 inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 6.27 17.61 17.61 cfs cfs cfs GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area CALCS Area A PR 100 Yrs, Tc and PeakQ 1/13/2022, 11:37 AM 25 Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - B PR Illustration LEr : Flow Direction Catcbm ent BT LyT Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 26.06 0.22 5.73 D SOILS 0.50 0.56 0.28 A SOILS GRAVEL ROAD 0.60 0.41 0.25 A SOILS CONCRETE PADS 0.04 0.96 0.04 sum: 27.20 sum: 6.30 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2315 *See sheet "Design Info" for inperviousness-based runoff coefficient values. GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area B PR 100 Yrs.xls, Weighted C 5/11/2022, 1:33 PM 26 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - B PR I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 2T20 2.00 A II. Rainfall Information Design Storm Return Period, Tr = 01= C2= C3= P1= Acres A, B, C, or D I (inch/hr) = Cl * P1 /(C2 + Td)AC3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of C2) (input the value of C3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.23 0.00 0.08 Reach: (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide 0-5 value if desired, or leave blank to accept calculated C-5.) Illustration Reach 2 i ___------ -_ - overland Reach 1 flow LEGEND OBeginning Flow Direction 4: C ate lane nt B o und:ary N RCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0070 300 0.08 N/A 0.14 35.88 1 0.0110 1,310 2 3 4 5 Sum 1,610 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 1.73 5.61 5.61 2.50 0.26 83.27 Computed Tc = Regional Tc = User -Entered Tc = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 119.15 18.94 18.94 10.94 35.46 35.46 cfs cfs cfs GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area CALCS Area B PR 100 Yrs.xls, Tc and PeakQ 5/11/2022, 1:34 PM 27 Area -Weighting for Runoff Coefficient Calculation Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - C PR Illustration Instructions: For each catchment subarea, enter values for A and C. Subarea Area Runoff Product ID acres Coeff. A C* CA input input input output A SOILS 9.40 0.22 2.07 D SOILS 2.82 0.56 1.58 sum: 12.22 sum: 3.65 Area -Weighted Runoff Coefficient (sum CA/sum A) = 0.2985 LEr : Flow Direction C at dim era Borunry 6 *See sheet "Design Info" for inperviousness-based runoff coefficient values. GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area C PR 100 Yrs, Weighted C 1/13/2022, 1:30 PM 28 CALCULATION OF A PEAK RUNOFF USING RATIONAL METHOD Project Title: Catchment ID: Cloudbreak Griffiths Parcel 2 - C PR I. Catchment Hydrologic Data Catchment ID = Area = Percent Imperviousness = NRCS Soil Type = A 12.22 2.00 A II. Rainfall Information Design Storm Return Period, Tr = O1= C2= C3= P1= Acres A, B, C, or D I (inch/hr) = C1 * P1 /(C2 + Td)^C3 100 28.50 10.00 0.786 2.77 years (input return period for design storm) (input the value of C1) (input the value of O2) (input the value of O3) inches (input one -hr precipitation --see Sheet "Design Info") III. Analysis of Flow Time (Time of Concentration) for a Catchment Runoff Coefficient, C = Overide Runoff Coefficient, C = 5-yr. Runoff Coefficient, C-5 = Overide 5-yr. Runoff Coefficient, C = 0.22 0.30 0.00 0.08 Reach :3 (enter an overide C value if desired, or leave blank to accept calculated C.) (enter an overide C-5 value if desired, or leave blank to accept calculated C-5.) Illustration Reach 2 c. Reach 1 overland flow LEGEND LLf` B Flow Direction C at a Junent B o uiidary NRCS Land Type Conveyance Heavy Meadow 2.5 Tillage/ Field 5 Short Pasture/ Lawns 7 Nearly Bare Ground 10 Grassed Swales/ Waterways 15 Paved Areas & Shallow Paved Swales (Sheet Flow) 20 Calculations: Reach ID Overland Slope S ft/ft input Length L ft input 5-yr Runoff Coeff C-5 output NRCS Convey- ance input Flow Velocity V fps output Flow Time Tf minutes output 0.0010 300 0.08 N/A 0.07 68.20 1 0.0170 566 2 3 4 5 Sum 866 IV. Peak Runoff Prediction Rainfall Intensity at Computed Tc, I = Rainfall Intensity at Regional Tc, I = Rainfall Intensity at User -Defined Tc, I = 2.00 6.33 6.33 2.50 0.33 28.94 Computed Tc = 97.14 Regional Tc = 14.81 User -Entered Tc = 14.81 inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = inch/hr Peak Flowrate, Qp = Calculated values for Tc & Qp are based on overide values entered for C & C-5. 7.31 23.08 23.08 cfs cfs cfs GRIFFITHS PARCEL 2_RATIONAL_CALCS_Area CALCS Area C PR 100 Yrs, Tc and PeakQ 1/13/2022, 1:30 PM 29 Stormwater Drainage Study Appendix E: GRASS SWALE CALCULATIONS Hydraulic Analysis Report BY: TRC DATE: 05/16/2022 SHEET NO.: 31 Project Data Project Title: Cloudbreak - Griffiths 2 Designer: TRC (TH) Project Date: Tuesday, December 28, 2021 Project Units: U.S. Customary Units Notes: Channel Analysis: GS -A Notes: input Parameters Channel Type: Trapezoidal Side Slope 1 (Z1): 4.0000 ft/ft Side Slope 2 (Z2): 4.0000 ft/ft Channel Width 2.00 ft Longitudinal Slope: 0.0140 ft/ft Manning's n: 0.0880 Depth 0.5000 ft Result Parameters Flow 1.8953 cfs MAX CAPACITY Area of Flow 2.0000 ft^2 Wetted Perimeter 6.1231 ft Hydraulic Radius 0.3266 ft Average Velocity 0.9476 ft/s Top Width 6.0000 ft Froude Number: 0.2892 31 Critical Depth 0.2540 ft Critical Velocity 2.4735 ft/s Critical Slope: 0.2005 ft/ft Critical Top Width 4.03 ft Calculated Max Shear Stress 0.43681b/ft^2 Calculated Avg Shear Stress 0.2853 lb/ft^2 Channel Analysis: GS -B Notes: Input Parameters Channel Type: Trapezoidal Side Slope 1 (Z1): 4.0000 ft/ft Side Slope 2 (Z2): 4.0000 ft/ft Channel Width 2.00 ft Longitudinal Slope: 0.0190 ft/ft Manning's n: 0.0880 Depth 0.5000 ft Result Parameters Flow 2.2079 cfs Area of Flow 2.0000 ft^2 Wetted Perimeter 6.1231 ft Hydraulic Radius 0.3266 ft Average Velocity 1.1040 ft/s Top Width 6.0000 ft Froude Number: 0.3370 Critical Depth 0.2770 ft Critical Velocity 2.5641 ft/s 32 Critical Slope: 0.1959 ft/ft Critical Top Width 4.22 ft Calculated Max Shear Stress 0.59281b/ft^2 Calculated Avg Shear Stress 0.38731b/ft^2 33 'TRC TRC 708 Heartland Trl, Suite 3000 Madison, WI 53717 Technical Memorandum Date: January 5, 2022 To: CBEP Solar 7, LLC From: BreAnne Kahnk — Project Engineer Reference No.: TRC Project No. 434718.0000 Subject: Griffiths Parcel 2 — Solar Glare Hazard Analysis Working Copy Introduction CBEP Solar 7, LLC (CBEP) is proposing to develop an approximately 5 -megawatt (MVO alternating current (AC) solar photovoltaic (PV) project identified as the Griffiths Solar Parcel 2 (Project). The Project is located near Johnstown, Weld County, Colorado. Figure 1 demonstrates the proposed PV array locations for the Project. Solar Glare Analysis Methodology TRC conducted a solar glare analysis using methodology developed by Sandia National Laboratories and described in the Solar Glare Hazard Analysis Tool (SGHAT) User's Manual (Ho et al, 2013). The SGHAT-compliant software used in this analysis is under license to TRC by ForgeSolar. Under certain conditions, solar panel surfaces reflect sunlight and produce glint (a momentary flash of bright light) or glare (a continuous source of bright light). Magnitude of glint and glare depends on several factors such as sun position, location of observer, and characteristics of the solar PV array including the tilt, orientation, location, and optical properties of the modules. Glare visibility from the observer's location is analyzed once glare characteristics are determined. Ocular hazard potential is estimated based on retinal irradiance and subtended angle (size/distance) of the glare (Ho et al., 2010). Potential ocular hazards range from temporary after -image to retinal burn depending on the retinal irradiance and subtended angle as shown in Figure 2. The SGHAT classifies solar glare into three categories, denoted as either `green', `yellow', or 'red' glare. • Green glare is the mildest of the three glare classifications and refers to a level of glare that has a low potential to cause after -image and no potential to cause retinal burn. • Yellow glare is a moderate level of glare with some potential to cause temporary after- image and no potential to cause retinal burn. • Red glare is a serious and significant form of glare with potential to cause retinal burn and/or permanent eye damage. \\madison-vfp\Records\-\WPMSN\PJT2\434718\0000\000014\M4347180000PH14-002.docx Technical Memorandum Page 2 of 5 Limitations of the SGHAT applicable to this Project are as follows: • The SGHAT does not rigorously represent the detailed geometry of a solar panel array; detailed features such as gaps between modules, variable height of the PV array, and support structures may impact actual glare results. However, accuracy of the current approach is validated by several test cases. • The model does not consider obstacles (either man-made or natural, existing or proposed) and mitigation measures between the observation points and prescribed solar installation that may obstruct predicted glare. • The ocular hazard predicted by the tool depends on a number of environmental, optical, and human factors, which can be uncertain. In general, default values given by the SGHAT in this analysis reflect the worst -case scenario. As such, the actual glare created by the proposed Project will likely be less than that predicted by this model. Project Description Preliminary layout and panel configuration have been developed by CBEP. As the Project is further designed, it is likely that the actual Project footprint will be smaller than that used for this analysis. Figure 1 depicts the proposed arrays, observation points (OPs), and route receptors evaluated. The same receptor parameters were used for each grouping of arrays analyzed. Project Specifications The PV panels for the Project are proposed to be mounted on a single axis tracking racking system with axes that are oriented to the south (180° azimuth), and an east -west tilt angle of 52° to - 52°. The resting angle, which is defined as the angle of rotation of the panels when the sun is outside the panels' tracking range, is proposed to be 0°. Single -axis tracking systems are programmed for the panels to remain perpendicular to the sun's location as the sun moves across the sky throughout the day via solar data from ephemeris tables, which predict the sun's path across the sky. The tracking system begins when the sun's location is perpendicular with the maximum tracking angle (52°) of the system and continues until the sun enters a range where the panel can no longer remain perpendicular with the sun. When the sun is outside the tracking range of the system (when the panels no longer can remain perpendicular with the sun), the trackers remain at their resting angle until the sun sets below the horizon. The panels are proposed to be mounted to the racking at approximately 4.5 -feet (54 inches) above ground level (AGL). The glare analysis will be evaluated at the mounting height. No significant grading is currently proposed for the Project. The panels are designed to absorb sunlight. The panels were modeled as smooth glass. The panels will be treated with anti - reflective coatings (ARC), which assists to absorb and transmit light rather than reflecting it. \\madison-vfp\Records\-\WPMSN\PJT2\434718\0000\000014\M4347180000PH14-002.docx Technical Memorandum Page 3 of 5 Observation Point Parameters Solar glare hazard analyses were conducted for selected residences and Town of Johnstown operational building located in vicinity of the Project using ForgeSolar's OP tool to estimate potential glare. Unoccupied structures, such as garages, sheds, barns, etc., were not analyzed. The OPs analyzed were selected by TRC. A height of 6 feet was used to represent observers located at one-story residences/buildings. No two-story residences were identified in the Weld County Property Portal. Table 1 summarizes the modelled characteristics of the selected OPs and their corresponding labels. Figure 1 shows the locations of the selected OPs in relation to the Project. Table 1: Observation Points Observation Point Label Number of Floors in Residence Height (ft) OP1 Assumed One Story Residence on 9216 W County Road 48.5 6 OP2 Assumed Mobile Home at 9216 W County Road 48.5 6 OP3 Assumed One Story Residence at 9510 W County Road 48.5 6 OP4 Assumed One Story Operational Building for the Town of Johnstown 6 Route Receptors TRC also analyzed the adjacent roadways, Hwy 60 and W County Road 48.5, utilizing the Route Receptor in ForgeSolar (Figure 1). The Route Receptor provides a multi -line representation that simulates observers traveling along continuous paths such as roads, railways, helicopter paths, and multi -segment flight tracks. The viewing angle for observers traveling within passenger vehicles along the roadways was presumed to be a 180° field of view, which represents that the observer can view glare in all directions. A viewing angle of 50° was used for commercial vehicles to account for the restricted field of view of larger commercial vehicles. A height of 5 feet was assumed for passenger vehicles and 11 feet for commercial vehicles. It was assumed that only passenger vehicles used W County Road 48.5. Additional Assumptions The following assumptions have been utilized for the analyses: • Time zone for the Project was set at UTC — 7 hours (Mountain Standard Time). • Subtended angle of the sun of 9.3 milliradian (mrad) is assumed as recommended by SGHAT. This is the average angle of the sun as viewed from earth as it moves throughout the day. • The time interval for the analysis was set to run at 1 -minute increments. Inputs, outputs, and other assumptions used in the analysis are documented in Attachment 1. \\madison-vfp\Records\-\WPMSN\PJT2\434718\0000\000014\M4347180000PH14-002.docx Technical Memorandum Page 4 of 5 Results, Recommendations, and Conclusions TRC conducted the solar glare hazard analysis using the FAA -approved SGHAT tool to evaluate potential impact of the Project on the evaluated OPs and Route Receptors. TRC evaluated the potential solar glare impact of the PV panels using the project specifications detailed above. Table 2 the estimated total number of minutes per year that glare may be visible from the proposed Project at each OP and Route Receptor evaluated. These results are detailed in Attachment 1. Table 2 Receptor Green Glare (min/yr) Yellow (min/yr) Glare Red Glare (min/yr) OP1 0 2,827 0 OP2 0 5,754 0 OP3 0 0 0 OP4 0 0 0 County Road 48.5 0 6 0 Highway 60 — Passenger Vehicles 119 167 0 Highway 60 — Commercial Vehicles 98 187 0 The estimated glare that may be visible at the evaluated receptors is described below. • OP1 is located approximately 350 west of the array area. Yellow glare may be visible for less than 20 minutes per day from approximately 6:00 am to 8:00 am during mid - September through March. • OP2 is located less than 100 feet northeast of the array area. Yellow glare may be visible from approximately 7:00 am to 8:00 am during November to early February. In addition, yellow glare may be visible from 4:00 pm to 6:30 pm during mid -September through March. Glare may be visible for up to 45 minutes a day during these months. • Highway 60 is located south of the array area. Green and yellow glare may be visible for less than 5 minutes per day from approximately 4:30 am to 5:30 am from mid -April to late -August for commercial and passenger vehicles traveling along the evaluated section of Highway. • County Road 48.5 is located along the northern boundary of the array area. Yellows glare may be visible for less than 5 minutes per day between 6:00 am and 7:00 am during March and late -September to early -October for passenger vehicles traveling along the evaluated section of roadway. Based on the glare hazard analysis performed for the Project with the project specifications provided above, no red glare is expected to be visible at the OPs and along the Route Receptors evaluated. However, yellow glare is modelled to be observed at OP1 and OP2 and along the route receptors. In addition, green glare is expected to be visible along Highway 60. It should be noted that ForgeSolar uses a simplified model for backtracking, where it assumes that the panels instantaneously revert to the resting angle when the sun is outside the panel rotation range. This assumption provides a worst -case scenario for glare estimates, so actual glare amounts may vary from the model. \\madison-vfp\Records\-\WPMSN\PJT2\434718\0000\000014\M4347180000PH14-002.docx Technical Memorandum Page 5 of 5 CBEP is evaluating several methods to mitigate the glare estimated to be visible at the above receptors. These methods include using vegetive or privacy screening around the perimeter of the array. If used, vegetative screening should include evergreen trees/coniferous trees, which could be maintained in order to block the array area from an observer throughout the year. In addition to physically screening options, adjusting the resting angle of the system would also mitigate the modelled glare. At a resting angle of approximately 5 degrees, the modelled glare is expected to be reduced to zero minutes a year. This is because the resting angle of a tracking system can have a large impact on glare produced near sunrise and sunset. When the sun is low on the horizon, an angle (even a slight angle) is needed to reflect light in a more upward trajectory, minimizing the light reflected to observers close to the ground. It should be noted that changes to the Project specifications may affect the results of this analysis. References Ho, C.K., C.M. Ghanbari, and R.B. Driver. 2010. Methodology to Assess Potential Glare Hazards from Concentrating Solar Power Plants: Analytical Models and Experimental Validation, SAN D2010 -2581O, in proceedings of the 4th International Conference on Energy Sustainability, Phoenix, AZ, May 17-22. Ho, C.K., and C.A. Sims. 2013. Solar Glare Hazard Analysis Tool (SGHAT) User's Manual v 3.0. \\madison-vfp\Records\-\WPMSN\PJT2\434718\0000\000014\M4347180000PH14-002.docx Figures 11madison-vfp\Records\-\WPMSN\PJT21434718100001000014\M4347180000PH14-002.docx Figure 1. Griffiths Parcel 2 Site with Observation Points and Route Receptor Locations \\madison-vfp\Records\-\WPMSN\PJT2\434718\0000\000014\M4347180000PH14-002.docx C F ce74 0 s_ co C C) 15E+03 1.E+02 1.E+O1 1.E+O0 1.E-01 1.E -02 1.E-04 1.E 0 1.E-06 Potential for Permanent Eye Damage (retinal burn) C 4 _ direct viewing of sun Potential for After -Image I Low Potential for After -Image I I I I l ``subtended angle of sun I I I I I I III 1 10 PI 00 1000 Subtended Source Angle (mrad) 1 Brumley,,, e (1977) [1 ] Sliney and Freasier J (1973. Table III) [3] n Delon et al. (2007) ANSI 2000 111] • M etea if and Horn (1958) [12] • Severin et al. (1962) [1 3] Saur and I (1969) [14 abrasl Airport Feature FAA Acceptable Glare Limit Color Code Runways No Glare None Low potential for after image Green ATCT No Glare None Note: After image (flash blindness) is an internal picture that appears on the retina after looking at an object reflecting light or at a source of light itself. Figure 2. Glare Hazard Analysis Plot and FAA Acceptable Glare Limits (Ho et at, 2011 and FAA, 2013) Glare analyses do not account for physical obstructions between reflectors and receptors. This includes buildings, tree cover and geographic obstructions. Several calculations utilize the PV array centroid, rather than the actual glare spot location, due to algorithm limitations. This may affect results for large PV footprints. Additional analyses of array sub -sections can provide additional information on expected glare. The subtended source angle (glare spot size) is constrained by the PV array footprint size. Partitioning large arrays into smaller sections will reduce the maximum potential subtended angle, potentially impacting results if actual glare spots are larger than the sub -array size. Additional analyses of the combined area of adjacent sub -arrays can provide more information on potential glare hazards. (See previous point on related limitations.) Glare locations displayed on receptor plots are approximate. Actual glare -spot locations may differ. Glare vector plots are simplified representations of analysis data. Actual glare emanations and results may differ. The glare hazard determination relies on several approximations including observer eye characteristics, angle of view, and typical blink response time. Actual results and glare occurrence may differ. Hazard zone boundaries shown in the Glare Hazard plot are an approximation and visual aid based on aggregated research data. Actual ocular impact outcomes encompass a continuous, not discrete, spectrum. 2016-2019 © Sims Industries d/b/a ForgeSolar, All Rights Reserved. \\madison-vfp\Records\-\WPMSN\PJT2\434718\0000\000014\M4347180000PH14-002.docx Attachment 1 Griffiths Solar - Parcel 2 Project Solar Glare Hazard Analysis Reports 11madison-vfp\Records\-\WPMSN\PJT21434718100001000014\M4347180000PH14-002.docx ;` Forge Rv planning & glare analysis • FORGESOLAR GLARE ANALYSIS Project: Griffiths Solar Project A proposed solar installation near Johnstown, Colorado. Site con guration: Griffiths Parcel 2 Analysis conducted by BreAnne Kahnk (bkahnk@trccompanies.com) at 19:51 on 03 Jan, 2022. U.S. FAA 2013 Policy Adherence The following table summarizes the policy adherence of the glare analysis based on the 2013 U.S. Federal Aviation Administration Interim Policy 78 FR 63276. This policy requires the following criteria be met for solar energy systems on airport property: • No "yellow" glare (potential for after -image) for any ight path from threshold to 2 miles • No glare of any kind for Air Tra c Control Tower(s) ("ATCT") at cab height. • Default analysis and observer characteristics (see list below) ForgeSolar does not represent or speak o cially for the FAA and cannot approve or deny projects. Results are informational only. COMPONENT STATUS DESCRIPTION Analysis parameters PASS Analysis time interval and eye characteristics used are acceptable 2 -mile ight path(s) N/A No ight paths analyzed ATCT(s) N/A No ATCT receptors designated Default glare analysis parameters and observer eye characteristics (for reference only): • Analysis time interval: 1 minute • Ocular transmission coe cient: 0.5 • Pupil diameter: 0.002 meters • Eye focal length: 0.017 meters • Sun subtended angle: 9.3 milliradians FAA Policy 78 FR 63276 can be read at https://www.federalregister.gov/d/2013-24729 SITE CONFIGURATION Analysis Parameters DNI: peaks at 1,000.0 W/m^2 Time interval: 1 min Ocular transmission coe cient0.5 Pupil diameter: 0.002 m Eye focal length: 0.017 m Sun subtended angle: 9.3 mrad Site Con g ID: 62353.11099 PV Array(s) Name: Axis Tracking Tracking Tracking Max Resting Rated Panel Reflectivity: Slope Parcel 2 tracking: Single -axis rotation axis orientation: 180.0° axis tilt: 0.0° axis panel offset: 0.0° tracking angle: 52.0° angle: 0.0° power: - material: Smooth glass with AR coating Vary with sun error: correlate with material l - j -' — _ ) ' n 7 , -_ " „�.,� �:. T c4 p.pgl USDA Farm Service Agency _' _ _ 2 ',Amer Technologies, U.S. Geological Survey, Vertex Latitude (°) Longitude (°) Ground elevation (ft) Height above ground (ft) Total elevation (ft) 1 40.341003 -104.881086 4767.86 4.50 4772.36 2 40.340989 -104.879353 4762.06 4.50 4766.56 3 40.340695 -104.879323 4764.54 4.50 4769.04 4 40.340668 -104.878346 4757.97 4.50 4762.47 5 40.339659 -104.878341 4760.15 4.50 4764.65 6 40.339597 -104.877538 4758.19 4.50 4762.69 7 40.338940 -104.877504 4761.63 4.50 4766.13 8 40.338818 -104.872947 4752.82 4.50 4757.32 9 40.337730 -104.872891 4757.33 4.50 4761.83 10 40.337844 -104.881152 4771.02 4.50 4775.52 Discrete Observation Receptors Name ID Latitude (°) Longitude (°) Elevation (ft) Height (ft) OP 1 1 40.341081 -104.882363 4771.95 6.00 OP 2 2 40.340987 -104.879049 4761.69 6.00 OP 3 3 40.340874 -104.876833 4746.90 6.00 OP 4 4 40.334692 -104.877986 4753.49 6.00 Route Receptor(s) Name: Hwy 60 - Commercial - Path t e: Two-wa YP y Observer view angle: 50.0° ' _' _: • --�`` ` - - fi I : v . I ! I ' Note: Route from this receptors are excluded - _ . - FAA policy review. Use the 2 -mile ight path receptor to simulate ight paths according to I. . `- FAA guidelines. - - ririalj Pe , _2U22 Maxar Technologies, U.S. Geological Survey, USDA Farm Service Agency Vertex Latitude (°) Longitude (°) Ground elevation (ft) Height above ground (ft) Total elevation (ft) 1 40.334324 -104.889591 4784.84 11.00 4795.84 2 40.334128 -104.881609 4758.52 11.00 4769.52 3 40.333932 -104.875901 4753.48 11.00 4764.49 Name: Hwy 60 - Passenger tli Path type: Two-way - �u Observer view angle: 180.0° - yT - 1 -- r .. �- Note: Route receptors are excluded from this - =et FAA receptor FAA policy guidelines. to review. simulate Use ight the 2 paths -mile ight according path to Ilihrs# ' WU t • I - ,-,, er. - — . n, _- tr . r i C-., boo - Ie _ = -, _ � ?2022 Ma,, :3 r Technologies, U.S. Geological Survey, USDA Farm Service Agency Vertex Latitude (°) Longitude (°) Ground elevation (ft) Height above ground (ft) Total elevation (ft) 1 40.334265 -104.889566 4785.19 5.00 4790.19 2 40.334102 -104.881605 4758.59 5.00 4763.59 3 40.333938 -104.875876 4753.44 5.00 4758.44 Name: W County Rd 48.5 - Passenger Path type: Two-way Observer view angle: 180.0° Note: Route receptors are excluded from this FAA policy review. Use the 2 -mile ight path receptor to simulate ight paths according to FAA guidelines. POg'?.2o22 M,axarTechrm ies, U.S. Geological Survey, USDA Farm Service Agency Vertex Latitude (°) Longitude (°) Ground elevation (ft) Height above ground (ft) Total elevation (ft) 1 40.341478 -104.886583 4781.35 5.00 4786.35 2 40.341347 -104.877872 4745.55 5.00 4750.55 3 40.341266 -104.875876 4744.07 5.00 4749.07 GLARE ANALYSIS RESULTS Summary of Glare PV Array Name Parcel 2 Tilt Orient "Green" Glare "Yellow" Glare Energy (0) SA tracking (°) min min kWh SA 217 8,941 tracking Total annual glare received by each receptor Receptor Annual Green Glare (min) Annual Yellow Glare (min) OP 1 0 2827 OP 2 0 5754 OP 3 0 0 OP 4 0 0 Hwy 60 - Commercial 98 187 Hwy 60 - Passenger 119 167 W County Rd 48.5 - Passenger 0 6 Results for: Parcel 2 Receptor Green Glare (min) Yellow Glare (min) OP 1 0 2827 OP 2 0 5754 OP 3 0 0 OP 4 0 0 Hwy 60 - Commercial 98 187 Hwy 60 - Passenger 119 167 W County Rd 48.5 - Passenger 0 6 Point Receptor: OP 1 2827 minutes of yellow glare 0 minutes of green glare O 24:00 - 23:00 - 22:00 21:00 - 20:0D - 14-00 - 18:00 - 17:00 - 16:00- 15-00 14:00 - 13:00 - 12.00 - 11:00 - 10 00 O 9:00 - 08:00 - 07.00 - O 6:00 05:0D 04.00 - 03-00 02:00 - 01:00 00.00 _ Annual Predicted Glare Occurrence I I I e *ea 40 ozS 7 I Oci Day of year I I I I O°' ma g' INN Low potential for temporary after -image Potential for temporary after -image Point Receptor: OP 2 5754 minutes of yellow glare 0 minutes of green glare 60 - 5O 10- 0 Daily Duration of Glare I St .€'a fat I I pci 1''1 p CS c Q 00 - Day of year Low potential for temporary after -image Potential for temporary after -image I 24:00 - 23:00 - 22:00 21:00 - 20:0D - 14-00 - 18:00 - 17:00 - 16:00- 15-00 14:00 - 13:00 - 12.00 - 11:00 - 10 00 O 9:00 - 08:00 - 07.00 - O 6:00 05:0D 04.00 - 03-04 02:00 - 01:00 00.00 _ Annual Predicted Glare Occurrence I I I t *e`) thza‘ oa`t 7 I Day of year I I I I c, O°' !P Sec I= Low potential for temporary after -image Potential for temporary after -image Point Receptor: OP 3 0 minutes of yellow glare 0 minutes of green glare Point Receptor: OP 4 0 minutes of yellow glare 0 minutes of green glare Route: Hwy 60 - Commercial 187 minutes of yellow glare 98 minutes of green glare O r 24.00 - 23:00 - 22:00 21:00 - 20:00 - 14-00 18:00 - 17:00 - 16.00 - 15:00 - 14-00 13:00 - 12:00 - 11:00 - 10:00 09 00 - 08:00 - 07-00 06:00 - 05:00 04.00 - 03:00 - 02:00 01:00 - 00:00 _ Annual Predicted Glare Occurrence ~quit row' Fe'° Oat p4?t Ntke4 f 1 0 pc cC- & vet Day of year a Low potential for temporary after -image Potential for temporary after -image 60 - 50 N 40 co tT in 30 - tU 2 20 10- 0 Daily Duration of Glare I \a'" .e'a fat I I i 1''1 p CS c Q 00 - Day of year Low potential for temporary after -image Potential for temporary after -image I 7 24:00 - 23:00 22:00 - 21:00 20:00 - 19:00 - 18:00 17.00 16.00 15:00 14:00 13:O0 12:00 11.00 10:00 09.00 08:00 07:00 06:00 - 05:00 - 04:00 - 03:00 - 02:00 - 01:00 - 00:00 _ Annual Predicted Glare Occurrence 02651 I I c', Day of year Oct Low potential for temporary after -image Potential for temporary after -image 5s4 Dec Retinal Irradiance (Wdcm^2) 101 10 Hazard plot for parcel -2 and hwy-60-com 100 141 102 Subtended Source Angle (mrad) 4, Hazard from Source Data C� Hazard Due to Viewing Unfiltered Sun Potential for After -Image Zone Low Potential far After -Image Zone Permanent Retinal Damage Zone 1o3 60- 50 cU 40 - a O ta 30 _ M 20 - 10- 0.1 eP Daily Duration of Glare I Day of year Low potential for temporary after -image Potential for temporary after -image — 400 - — 600 - —800 — o —1000 - 1 Positions Along Path Receiving Glare iseers I 1 1 I 1 —800 —600 —400 —200 0 200 400 600 East (ft) Low potential for temporary after -image Potential for temporary after -image Path Sampled Annual Glare Reflections on PV Footprint 660 - 330 - 0- ,-. -320 - 4 -650 - -98O - - 1310 - - 1640 - 1 99 O 330 I nog} , , 2„, East (ft) Low potential for temporary after -image Potential for temporary after -image PV Array Footprint 4 Route: Hwy 60 - Passenger 167 minutes of yellow glare 119 minutes of green glare s-. 0 24:00 - 23:00 22:00 - 21:00 20:00 - 19:00 - 18:00 17.00 1E00 - 15:00 14:00 - 13:O0 - 12:00 11.00 - 10:00 09.00 08:00 - 07:00 - 06:00 - 05:00 - 04:00 - 03:00 - 02:00 - 01:00 - 00:00 _ Annual Predicted Glare Occurrence 02651 I I se; '�' cog 5€9 Day of year Oct Low potential for temporary after -image Potential for temporary after -image 5s4 Dec Retinal Irradiance (Wdcm^2) 101 = 100 - 10-2 Hazard plot for parcel -2 and hwy-60-pas )1 t 10° 101 102 Subtended Source Angle (mrad) e Hazard from Source Data O Hazard Due to Viewing Unfiltered Sun Potential for After -Image Zone Low Potential far After -Image Zone Permanent Retinal Damage Zone 103 60 - 50 - cU 40- a cn ta 30 _ M 20 - 10 - 0 Daily Duration of Glare 12i`t \A" i%\ P - A4 4,4 o' c Day of year Low potential for temporary after -image Potential for temporary after -image — 400 - — 600 - • 1 —$00 - —1000 - Positions Along Path Receiving Glare I I I I I I I I —$Oa —600 —400 —200 0 200 400 600 East (ft) Low potential for temporary after -image Potential for temporary after -image Path Sampled Annual Glare Reflections on PV Footprint 66D - 330- 0- .-. -320 - -650 - O -98O - - 1310 - - 1640 - 2.O Q Cs 0 pp 1O Q00 East (if) Low potential for temporary after -image Potential for temporary after -image PV Array Footprint Route: W County Rd 48.5 - Passenger 6 minutes of yellow glare 0 minutes of green glare s-. 0 24:00 - 23:00 22:00 - 21:00 20:00 - 19:00 - 18:00 17.00 1E00 - 15:00 14:00 - 13:O0 - 12:00 11.00 - 10:00 09.00 08:00 - 07:00 - 06:00 - 05:00 - 04:00 - 03:00 - 02:00 - 01:00 - 00:00 _ Annual Predicted Glare Occurrence Daily Duration of Glare 60 - 0265 0t Nuts. N�\ os Day of year Oct - Dec 50 - cU 40cn - a O ta 30 _ M 20 - 10 - 9 # pc, os`i, \ATE p.A4 9.4 oc ' Day of year Low potential for temporary after -image Low potential for temporary after -image Potential for temporary after -image Potential for temporary after-ilmage Retinal (radiance (Wdcm^2) 101 - 1o° 10-1 10-2 Hazard plot for parcel -2 and w -county -rd I ,,, 100 101 102 Subtended Source Angle (mrad) • Hazard from Source Data o Hazard Due to Viewing Unfiltered Sun Potential for After -Image Zone Low Potential far After -Image Zone Permanent Retinal Damage Zone 103 st Positions Along Path Receiving Glare 300 - 200 - 100 0 0- z — 100 - — 200 - i I T 1 1 I 1 —600 —400 —200 0 200 400 600 East (ft) Low potential for temporary after -image Potential for temporary after -image Path Sampled Annual Glare Reflections on PV Footprint 66D - 330- 0- r-. -320 - -650 - z -980 - - 1310 - - 1640 - L_� .\)3 'N9 �yc3'tfl Qfl East (ft) Low potential for temporary after -image Potential for temporary after -image PV Array Footprint Assumptions "Green" glare is glare with low potential to cause an after -image ( ash blindness) when observed prior to a typical blink response time. "Yellow" glare is glare with potential to cause an after -image ( ash blindness) when observed prior to a typical blink response time. Times associated with glare are denoted in Standard time. For Daylight Savings, add one hour. Glare analyses do not account for physical obstructions between re ectors and receptors. This includes buildings, tree cover and geographic obstructions. Several calculations utilize the PV array centroid, rather than the actual glare spot location, due to V1 algorithm limitations. This may a ect results for large PV footprints. Additional analyses of array sub -sections can provide additional information on expected glare. The subtended source angle (glare spot size) is constrained by the PV array footprint size. Partitioning large arrays into smaller sections will reduce the maximum potential subtended angle, potentially impacting results if actual glare spots are larger than the sub -array size. Additional analyses of the combined area of adjacent sub -arrays can provide more information on potential glare hazards. (See previous point on related limitations.) Glare locations displayed on receptor plots are approximate. Actual glare -spot locations may di er. Glare vector plots are simpli ed representations of analysis data. Actual glare emanations and results may di er. The glare hazard determination relies on several approximations including observer eye characteristics, angle of view, and typical blink response time. Actual results and glare occurrence may di er. Hazard zone boundaries shown in the Glare Hazard plot are an approximation and visual aid based on aggregated research data. Actual ocular impact outcomes encompass a continuous, not discrete, spectrum. Refer to the Help page at www.forgesolar.com/help/ for assumptions and limitations not listed here. 2016 © Sims Industries d/b/a ForgeSolar, All Rights Reserved. ACENTECH March 1172022 Jamelle Schlangen TRC Companies 123 N. College Ave, Suite 206 Fort Collins, CO 80524 Email : jschlangen@trccompanies.com Subject: Site Acoustical Evaluation Griffiths Solar Facility Milliken, CO Acentech Project No. 635261 Dear Jamie: 33 Moulton Street 4s4 Cambridge MA 02138 617 499 8000 acentech.com In connection with Cloudbreak Energy Partners' development of the Griffiths Solar Facility (the Project), we have conducted an acoustical evaluation for the Project. The primary objective of our evaluation was to predict sound transmission from sound -producing equipment to nearby community receivers. The sound - producing equipment evaluated in this study includes transformers and inverters. GLOSSARY OF TERMS To facilitate understanding of the technical terms used throughout the report, we have provided the following glossary: A -weighting — a sound data filter that adjusts the sound level for frequency content to better represent the human perception of sound. dB — decibel, unweighted sound level. Note that this can be used to refer to relative increases in sound pressure level as well as overall sound level. dBA or dB(A) — A -weighted sound level. Note that this only refers to overall sound level, never relative increases in sound level. LA10 the A -weighted sound level (dBA) exceeded 10% of the measurement interval. Typical of brief transient sound events. LA90 — the A -weighted sound level (dBA) exceeded 90% of the measurement interval. Typical of continuous sounds, and often similar to the minimum sound level. Also known as the "background noise level." LAeq — the A -weighted average continuous equivalent sound level (dBA). Often referred to as Leg. Lp — Sound Pressure Level, dB relative to 20 micro -Pascals. For the purposes of this evaluation, it is used to represent sound at any given receiver point in the community. LW - Sound Power Level, dB relative to 1 pico-watt. For the purposes of this evaluation, it is used as the input sound level at the "source" (the noise -producing equipment). acoustics 0 technology I vibration Jamelle Schlangen March 10, 2022 Page 2 of 13 PROJECT NOISE GUIDELINES Weld County "Use By Special Review (USR)" Procedural Guide We have reviewed the Weld County "Use By Special Review (USR)" Procedural Guide, which describes required steps for Project approval. According to the Guide checklist, the Project must conduct a: "noise study including a noise abatement plan documenting the methods to be utilized to meet the applicable noise standard, as determined by Environmental Health." The procedures outlined in this report are intended to serve as that noise study. The applicable noise standard is described below. Colorado Noise Statute According to the Colorado Noise Statute (25-12-103): "Sound levels of noise radiating from a property line at a distance of twenty-five feet or more therefrom in excess of the dB(A) established for the following time periods and zones shall constitute prima facie evidence that such noise is a public nuisance." The time periods and zones, along with their associated noise limits, are listed below in TABLE 1. We understand that all of the abutters are either residential or commercial properties. TABLE 1: Colorado Noise Statute — Noise Limits at Property Lines Zone Noise Limit 7:00 AM to 7:00 PM 7:00 PM to 7:00 AM Residential 55 dB(A) 50 dB(A) Commercial 60 dB(A) 55 dB(A) Light Industrial 70 dB(A) 65 dB(A) Industrial 80 dB(A) 75 dB(A) METHODOLOGY In order to provide context for our study, we first measured ambient sound levels at the site. Taking note of the quietest daytime and nighttime sound levels allowed us to establish a benchmark for comparing Project noise with existing sound sources. We then used sound data for the noise -producing equipment to build a computer model that can predict noise propagation to the community. The evaluation herein evaluates sound levels due to noise -producing equipment at all property lines adjacent to the Project. BACKGROUND NOISE SURVEY Acentech performed unattended sound measurements from January 6 to January 13, 2022 using two sound level meters (SLM). The particular instruments we used were model NL-52 by Rion. The equipment is calibrated annually as well as field calibrated immediately prior to use and upon retrieval to ensure accuracy. The locations of our SLMs are shown in FIGURE 1. We obtained data in 1 -hr intervals, including LAeq and other statistical metrics (e.g., LA1o, LA90). FIGURES 2 & 3 present time histories of environmental sound levels measured at each monitoring location. The LA90. shown in blue, is the key sound metric for evaluating sound emissions from steady-state sources like transformers and inverters. For reference, we have also included the LAeq and LA01 (defined above in the Glossary) to represent some of the louder, less frequent sound events near the measurement locations. At Location 1, the quietest daytime (7:00 AM — 7:00 PM) hour had an LA90 of 29 dBA, while the quietest nighttime (7:00 PM — 7:00 AM) hour had an LA90 of 28 dBA. At Location 2, which was much closer the main thoroughfare CO -60, the quietest daytime hour had an LA90 of 37 dBA, while the quietest nighttime hour had an LA90 of 33 dBA. acoustics , technology I vibration Jamelle Schlangen March 10, 2022 Page 3 of 13 TABLE 2: Existing Ambient Sound Survey — Quietest Hour Measurement Results Location Measured Sound Level of Quietest Hour (dBA) 7 AM to 7 PM 7 PM to 7 AM Location 1 29 28 Location 2 37 33 OPERATIONAL NOISE EVALUATION Acentech developed an acoustical model of the Project and the surrounding area. The model was developed using Cadna/A software to estimate the contributions of various noise sources to the community sound levels. Cadna/A complies with the standard ISO 9613-2, which defines an internationally recognized methodology in the acoustics industry for calculating sound propagation outdoors. The current site plans used in this modeling are enclosed in APPENDIX A. To aid us in developing our model, TRC provided information about the equipment to be installed. The transformer models have not yet been selected, but we understand that they will be specified to NEMA TR-1 standards. Since we did not receive transformer sound data, we estimated transformer sound levels based on transformers from similar past projects. We understand that there will be two (2) transformers at each parcel, for a total of four (4) transformers. For the inverters, we received a specification sheet for the basis of design model: CPS SCH100. This sheet provided a single -number overall sound level (dBA) for each unit. We used this value and approximated the full spectrum by using octave band sound data from inverters on similar past projects. We understand that there will be forty (40) inverters at each parcel, for a total of eighty (80) inverters. The sound power level (Lw) inputs we used in our model are presented in TABLE 3. We have also included the relevant page from the inverter (CPS SCH100) specification sheet in APPENDIX B. N ighttime Operation During nighttime operation, we understand that the inverters will be inactive, but the transformers will be energized and producing sound. We expect that the inverter shutoff times will vary depending on daylight hours at different times throughout the year. In our modeling, we have assumed an average inverter shutoff time (i.e. the cutoff between "daytime" and "nighttime") of 7:00 PM. PRELIMINARY RESULTS We calculated noise levels at each of the eleven adjacent properties indicated on the site plan, as shown in FIGURE 4. The particular receiver locations were selected to be as close as possible to the noise -producing equipment in order to represent a "worst case scenario" sound level at each property. Calculated noise levels further from the project are shown in the sound contours, described below. We calculated the sound level at these locations with receiver heights of 1.5 meters. We then compared modeled noise levels to the noise guidance summarized above. S ound Levels at Nearby Receivers TABLE 4, enclosed, presents the estimated baseline daytime and nighttime sound levels for the Project. The ambient is defined as the LA90, as described above. Even with no mitigation measures in place, the Project is compliant with the property line noise limits outlined in the Colorado Noise Statute for both residential and commercial abutters. S ound Contours FIGURE 5 shows Project -only daytime sound contours for the broader Project area, calculated at a height of 1.5 meters, from 35 dBA to 60 dBA in 5 -dB increments. FIGURE 6 shows Project -only nighttime sound contours. The contours demonstrate that some areas of adjacent properties may occasionally register a perceptible increase over existing ambient sound levels, depending on time of day. However, this is only likely to occur during the quietest hours of the day, and only at adjacent property areas that are closest to the noise -producing equipment. We do not anticipate significant increases in existing ambient sound levels at any nearby residential buildings. acoustics , technology I vibration Jamelle Schlangen March 10, 2022 Page 4 of 13 SUMMARY The Project is expected to achieve compliance with the Colorado Noise Statute without the need for any mitigation. Any perceptible increases of existing ambient levels at nearby properties are expected to be minimal. When you specify the Projects transformers, we recommend that you select a model with sound levels no higher than those of the sample transformer we included in our model, as shown in TABLE 3. * * * * We hope this report provides all the information you need at this time. Please contact us via phone or email with any questions. Sincerely, Josh Brophy Consultant CC: Michael Bahtiarian (Acentech) Encl: TABLES 3 & 4 FIGURES 1 - 5 APPENDIX A: Site Plans APPENDIX B: Inverter Specification Sheet acoustics 0 technology I vibration Jamelle Schlangen March 10, 2022 Page 5 of 13 TABLE 3: Equipment Octave Band Sound Power Levels Equipment Octave Band Center Frequency (Hz) Overall Sound Power Level (dBA) 31.5 63 125 250 500 1,000 2,000 4,000 8,000 Sound Power Level (dB re 1 pico-watt) Inverter1 72 74 72 75 73 69 66 71 61 77 Transformer2 114 107 99 87 81 72 66 61 56 87 1 The manufacturer provided the overall A -weighted sound pressure level (at 1m) for this unit. We converted this to the sound power level, and approximated the full sound spectrum by using octave band sound data from inverters on similar past projects. 2 The basis of design model has not yet been specified. We estimated transformer sound levels based on transformers from similar past projects. TABLE 4: CadnaA Acoustical Modeling Results Receiver Calculated Sound Level Project (dBA) -Only Assumed Property Type Colorado Limit Noise (dBA) Statute Day Night Day Night 1: Coulson Excavating Company 36 32 Commercial 60 55 2: Spaur LLC 44 34 Commercial 60 55 3: Spaur LLC 48 47 Commercial 60 55 4: Colorado Sweet Gold LLC 40 38 Commercial 60 55 5: Binder Family Farms LLC 42 40 Commercial 60 55 6: Town of Johnstown 42 33 Commercial 60 55 7: Boulder Scientific Land LLC 43 36 Commercial 60 55 8: Boulder Scientific Land LLC 39 36 Commercial 60 55 9: David & Kathryn Terrell 38 30 Residential 55 50 10: Janice J Knaub 43 42 Residential 55 50 11: Arthur M Griffiths 40 37 Residential 55 50 acoustics technology I vibration . CAVA11H RLC.L-1IOON MC) :-114861. 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CEP-TIO$ No. 45013•17,.COMM( Jamelle Schlangen March 10, 2022 Page 6 of 13 acoustics technology I vibration Jamelle Schlangen March 10, 2022 Page 7 of 13 Sound Levels Measured at Griffiths Solar Location 1 (North) 80 70 60 Q CO to � 50 os t r4 I U- C J 40 30 20 12:00 AM i- I 1 ilif\A Thursday - 1/6/2022 1 1 1 1 1 1 1 1 1 1 1 „ 1 1,,, 1,,,, 11111111111111111111111 Sunday 1/9/2022 Friday 1/7/2022 ,,,,,,,,,,,, 1 1 1 1 1 1 1 1 1 1 1 Saturday 1/8/2022 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1, 1 1 Monday 1/10/2022 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Tuesday 1/11/2022 I I 1 1 1, 1 1,,, 1,,,,,,,,,,, Wednesday 1/12/2022 ,,, 1, 1 1 „ I I I I I I I I 1 1 1 1 1 1 Thursday 1/13/2022 I I I I I I 1 1 1 1 1 1 1 „ I I,,,,,, 12:00 AM 12:00 AM LA01 12:00 AM 12:00 AM Time LAeq 12:00 AM 12:00 AM LA90 FIGURE 2: Ambient Sound Levels Measured at Location 1 12:00 AM 12:00 AM acoustics I technology I vibration I Jamelle Schlangen March 10, 2022 Page 8 of 13 Sound Levels Measured at Griffiths Solar Location 2 (South) 80 70 60 CO tQ Immi 50 C 40 30 20 12:00 AM 1 I ' ' ' .11\4\1\11 Monday 1/10/2022 I I 1 1 1 1 1 1 l l l l 1 1 1 1 1 1 1 1 1 1 1 Tuesday 1/11/2022 I I I I 1 1 l l 1 l l 1 l 1 1 1 1 1„,„ Wednesday 1/12/2022 I I 1 1 1 1 l 1 l l 1 l l 1 1 1 1 1 1 1 1 1 1 Thursday 1/13/2022 I I I I l l 1 l l 1 l l 1 1 I I I I I I I I I Thursday 1/6/2022 I I I I I I I I I I 1 1 1 1 1 1 1 1 1 1 1 1 1 Friday 1/7/2022 1111111! 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Saturday 1/8/2022 1 1 1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 1 1 1 1 1 Sunday 1/9/2022 I I I I I I 1 1 l 1 l l 1 1 1 1 1 1 1 1 1 1 1 12:00 AM 12:00 AM E LA01 12:00 AM 12:00 AM Time LAeq 12:00 AM 12:00 AM LA90 FIGURE 3: Ambient Sound Levels Measured at Location 2 12:00 AM 12:00 AM acoustics I technology I vibration Jamelle Schlangen March 10, 2022 Page 9 of 13 TX CSIN:: s.1 v:41: ;OR _X PG•VJ'R 1'(:I !•Y.111TCN SPALF. ,.LC RECC:P1 CH n�; Li 'I.1rsA, cE'4 WCC 2 S COVC fIRIG iICN STRL.CP_IR; •\ CX CoNC Sia,ECIR' -1; = x 'rIbGT 4 4!) i t n OVERHEAD FIECTAIC 'N E%IRAICIAIICNLANAI EX CONC. SJP?CR" c R ',Lc, EXCC`1! 'H41G4;IuI STRUC' RE SPAUFL, I -LC RECE= r UAt NO 4ICJt7a 4, C:.' iwc 4 EX A130VE GPO MID CAS P:PLIPIE: VALVE ASSEIVPIY EX DR,LIAAG= am- PC ZONC S.1I'I'I)R r^,A L'=<'O'.YE3'OLE EX RAILROAD A CCU t50N EXCAVAtING, INC RCCE=TIC11 NO A4148-51. CPT4pCC 1 LA: t;r_IELINE LY -.'R4vEL CRI'VEVVA1' EX SILO n co r PAD v LX 24' STEE. CU.JcR" Sp' PIPELINE. EA'-MtM RECEPTION NO3649273 Cx?s' S:T=E_ CL _JER- L 4 STY CUT 6:?G Ex LID CH yam i Lx CON PAD --f _x °MAlr:AG' L:I is > 'yr.! ' Dt4 -GUM' r EXOVER wEJ.G ELECTRIC -LINE c'rs;.lt_'p ROAD aP 'I; r • }.t CREPT -1c, �rErnrxrrrivrii l LOSS -03.3 -RE: ;ECW JON NO 2:-0233 •lt LX'vIJO'LEtiCME LX ABOVE GROUND EX71iEEIINE -- Gas PIPLLNI VALVE ASSEMBLY I1 11 I I II I •S1VI"..N.NIf'if!LSL 1 I 1 (—=XFIE_^RO4D EX FIELD ROAD I I 1` EX CO:NC IRIUGArION 1 ;!KJCIIYR, I I - FxJor' SrFFF'C'JL:Q.R'I' I I 50• PIPELINE I I EASEMENT PANNANDLF EASTERN PIPELINE COMPANY RECEPTION NO I 2035248 NI I FA] I`CI r" 'Mr' ` 1C cPCCIGIcL ' ciC4Tlil Ex : a" STFE! CULVERT II 1 fl — EXFENCE I _ Ex CITC-• ti YMI NI PANUANp(E £ASi ERN PIPELINE TUNISIAN', RECEPTION NO 2036 IAN 4 !coif = k. Y.�:aIIF fIECEu'nc I NC' '3455. QP'ts',.-1 ].Q -frUMP4:'!N'71 r1' ;AEA es I, ;JrI & C=AS 0RODLIC%CU a METER FACILF'Y — =x Oil. S. GAS 'Pal 9-EL.D El JITII It:_?FiAD I sn': E s. _ •...,•crMCVT :tPrION No≥S42084 SO' P:PELINC EASEMENT RECEPTION NO 3b492?3 rx FENCE I -_-- 7 6 41 ..FLEE F PRIG? 101 IITURE trei _. T01iiit ?=3 twfl3tf117 Pitt .LN CC'f 5tr> ' r5LtIu - 57ATE I-11UNWAY 50 I I';OFR '0.11h1 -.4?'•! I I tammenia FCC FTION NO292'0323, C'r-R.CL x III_; I_I}_IC•>� 1,', 4Fcr:•r.cv,.NC_ .- receiver location = noise -producing equipment 9 FIGURE 4: Modeled Property Line Receivers acoustics I technology I vibration Jamelle Schlangen March 10, 2022 Page 10 of 13 Lz 31 414-1..41 tx -,!V-!ju- pro _) :r,y, p :1). ✓; iX 01.41 A1:7r, C.Alvit • !ti 5'4CStir PCOT i ul: I, rCNvt; F tk 4 `,`.h.'. *R%-;TCr: MR :k PD'Il:K I '► ExIt4_40•Ar. f —!T . 41/44, AI C *NEEINIE :4110. WAY ExSi-G K Mfg: P4,1 : !'• e><24'STEE_C4!VEr 1 �r EX O'VER)U I I i X. I ST" :l'73_DC. — �� i II I' E. t A>v= I 90'?rPL"iIfi1E EASEMENT r't ( rTl't L ' x (i .•k V.i • l EC6V IUK YIO 649271 1 EX :014C, PA) - r — `off _ �. I .*/ _ L— —I- is Cal E.%tefN '. -I N 6 IAA c :"01vC I;ci;,ATICN t'ZT It( • -.. I,.r,,,-.q—p„,t It I•' ',q.l. rI LC ROAD f- filet I trror 1t .i Fit _IL`'.A: I I t{?4-110tl Cu' •art t • lePOT' T if CASEMEtir NANHANpLL ,:u-1Rvi PFPEIJSri COMPANY RECEPTION NO Jail -14a CI A&7t=VRt`UN,D L,Ati I'tW NI- V01.;r •___...+_ t.: I' . •'^ "CEP, LINE EASE ^ •FTIONNO2647084 - - W ?; .! r t- .41 . 'pa( I 1i • ' :f=? :3 "5 F_Li.- .'I'•i--V •'1 ,. '- i 2,I P$NHA',!.iC P RECEPTION NO•2016i4E I "C IAN It. t k N tI S7TICN '- '�55 C '4i • . bat: I H'2MPSQN 3r-ct' ( •I 1.i..."iS13kX.DU11 rhtG ;l''OlwiIn + +tignicet, , se -4iiestjame - eela 71C1N Nq 5849;73 :$C?'L8 (ii.% "N:J.`1';ft t)1t'3 fActiv P466.5 'Ai ;TATE 1UGPIPer ' Gu c.'%,RM5,!.l!C EtCt I LAi tJC 2.4?r_223 AIIALVCr. : eri. tr ',FCI iO Pi voC• dirt U4U_:7l.ft;C > 35 > 40 > 45 > 50 > 55 > 60 FIGURE 5: Project -Only Daytime Sound Contours (dBA) acoustics technology I vibration r' L•. (g•AvEL ?f:f".'EWA.; IX COPIC PAV I (, -- Ex A` :-ti I ::I: V-RT - 1 1 LX1n CArT BLXi -11I lADI'(}r; / I• EX CONr F,tr -� EX COtsC tRRIGAI I3N 511111(TI IE,= EX'C'7Nr. til;Frr,14 in11.a'�Jr[. Jamelle Schlangen March 10, 2022 Page 11 of 13 S'AI!},III t RECEPTION '40. 40370E4,011P.WeLt 3 LX CAC ER hsiAliCN Si1tLCI LI+L EX CON( EL OST fr7NiXat)WERt•Ct E E%u"`1ERNEAD ELEtT4f't ::sir -,,, \t4 t 114$ ciI TPN CANAL \ M EX CC 4CSJPPOIIT -CNf e � N. �W P POLF iE Li.;Nr.'Fi.R:5.1T:C*1 5' MIR. LIE ftUI1)J'TIU •1 ,Q 4O570e4. r_•PfKWCC EX ABOVE 4C1r Mti 1.E5 PIP1 .91E SD'PIPEL1E4 FASINIINI . NCCLPT1 ON NO 364,D271 �- *4 04 LA UR.;' tAGE 0 rCH \. 4- i t .P 1.1 GM -1_ ' • uh,I, ;i•Ir I. Ii.'. ., t-li, ECE'I t't'.:- . is — 1.U: ri7'a&r.-41 ti,. EX ABOVE.GR.`1tflJL; j-IG INCEI,ITA. 11— Gift PIPELINE +IL sL A, ,EitiJCv EX C3 XoUGE — r MOB`.;. j-MMME E'P:I;,ARA(4 1-- EX FIELD ROAD I SAY t!;PIE M EASCMtl Ni fi A _r'tt Sic. 1 , , ll0 7A.N., • Ah 1LI EASTERN NI 'LINE I I riE_' oa[ —.. I COMPAJre I RELEPECIt? •. I ' 11/4 2036,2411 ,_ FIGURE 6: Project -Only Nighttime Sound Contours (dBA) „';t•ER L,r - EASEMENT 3, r t. E n1O #iO 2841024 I 04 :+1s!ER'ME- %1GL I ithD ar3+r; ;1 EX h!H:1L I1GhM • rxItt tr1t1ONP"r4 .11 4i mitt: 1 rICIFTWAY 60 RIPPX;R:PA,4 ,? £ARMS. LEr P-fP'.11014 nt 3 2.9lo3a.OPP4rrt• —-a I pi1C11 i /t-p+1Vi r INQS'LC1-:L t'.•C!7H': `Fr?1P'EL1N'F ELEMENT RECEPTION NO1649213 ,. r'x ffENGc 6DUL3 tt5C:Etii1FILIAMB, AC. Pitt?'IOt% NO. 2571337, CuppriVa 7 ..:r!- i:. sise L ..SP•••••I .L! .1 .Il' i i'l ^pY staRt :N S if Pi ^R_ y, -msµ-'Si Y tat11•_E < cnaus at:CE'Th3•,.v$. a t-'F•;':'C: r: •,7fr,f,tt1 tt ' ., af"s. SOLIW-9t EtENTErIE 1,\14t1. QECEnT;ON NO.45tH ri; 11-r:•,t: c Es 9 --c4.1/4r. z>35 > 40 > 45 >50 > 55 > 60 acoustics I technology I vibration APPENDIX A: SITE PLANS APPENDIX B: INVERTER SPECIFICATION SHEET �cPs Datasheet 100/125kW, 1500Vdc String Inverters for North America QcPs CPS SCH 100/125KTL-DO/US-600 The 100 & 125kW high power CPS three phase string inverters are designed for ground mount applications. The units are high performance, advanced and reliable inverters designed specifically for the North American environment and grid. High efficiency at 99.1% peak and 98.5% CEC, wide operating voltages, broad temperature ranges and a NEMA Type 4X enclosure enable this inverter platform to operate at high performance across many applications. The CPS 100/125kW products ship with the Standard or Centralized Wire -box, each fully integrated and separable with AC and DC disconnect switches. The Standard Wire -box includes touch safe fusing for up to 20 strings. The CPS FIexOM Gateway enables communication, controls and remote product upgrades. Key Features • NFPA 70, NEC 2014 and 2017 compliant Touch safe DC Fuse holders adds convenience and safety CPS FIexOM Gateway enables remote FW upgrades Integrated AC & DC disconnect switches 1 MPPT with 20 fused inputs for maximum flexibility • Copper and Aluminum compatible AC connections 100/125KTL Standard Wire -box Fzc This device complies with part 15 of the FCC Rules NEMA Type 4X outdoor rated, tough tested enclosure Advanced Smart -Grid features (CA Rule 21 certified) kVA Headroom yields 100kW @ 0.9PF and 125kW @ 0.95PF Generous 1.87 and 1.5 DC/AC Inverter Load Ratios Separable wire -box design for fast service Standard 5 year warranty with extensions to 20 years 100/125KTL Centralized Wire -box CHINT POWER SYSTEMS AMERICA 2021/10 -MKT NA Chint Power Systems America 6800 KoII Center Parkway, Suite 235 Pleasanton, CA 94566 Tel: 855-584-7168 Mail: AmericaSales@chintpower.com Web: www.chintpowersystems.com Technical Data Model Name DC Input Max. PV Power Max. DC Input Voltage Operating DC Input Voltage Range Start-up DC Input Voltage / Power Number of MPP Trackers MPPT Voltage Range' Max. PV Input Current (lsc x1.25) Number of DC Inputs DC Disconnection Type DC Surge Protection AC Output Rated AC Output Power Max. AC Output Power2 Rated Output Voltage Output Voltage Range3 Grid Connection Type4 Max. AC Output Current @600Vac Rated Output Frequency Output Frequency Range3 Power Factor Current THD Max. Fault Current Contribution (1 -cycle RMS) Max. OCPD Rating AC Disconnection Type AC Surge Protection System Topology Max. Efficiency CEC Efficiency Stand-by / Night Consumption Environment Enclosure Protection Degree Cooling Method Operating Temperature Range Non -Operating Temperature Ranges Operating Humidity Operating Altitude Audible Noise Display and Communication User Interface and Display Inverter Monitoring Site Level Monitoring Modbus Data Mapping Remote Diagnostics / FW Upgrade Functions Mechanical Dimensions (WxHxD) Weight Mounting / Installation Angle AC Termination DC Termination Fused String Inputs Safety Safety and EMC Standard Selectable Grid Standard Smart -Grid Features Warranty Standard Extended Terms 1) See user manual for further information regarding MPPT Voltage Range when operating at non -unity PF 2) "Max. AC Apparent Power" rating valid within MPPT voltage range and temperature range of -30°C to +40°C (-22°F to +104°F) for 100KW PF >0.9 and 125KW PF ≥0.95 3) The "Output Voltage Range" and "Output Frequency Range" may differ according to the specific grid standard. 4) Wye neutral -grounded, Delta may not be corner -grounded. 5) See user manual for further requirements regarding non -operating conditions. 6) 5 year warranty effective for units purchased after October 1st, 2019. CPS SCH 100KTL-DO/US-600 CPS SCH 125KTL-DO/US-600 187.5kW 1500V 860-1450Vdc 900V / 250W 1 870-1300Vdc 275A 1 20 PV source circuits, pos. & neg. fused (Standard Wire -box) PV output circuit, 1-2 terminations per pole, non -fused (Centralized Wire -box) Load -rated DC switch Type II MOV (with indicator/remote signaling), Up=2.5kV, In=20kA (8/20uS) 100kW 125kW 100kVA (111 KVA @ PF>0.9) 125kVA (132KVA @ PF>0.95) 600Vac 528-660Vac 34? / PE / N (Neutral optional) 96.2/106.8A 120.3/127.0A 60Hz 57-63Hz >0.99 (±0.8 adjustable) >0.99 (±0.8 adjustable) <3% 41.47A 200A Load -rated AC switch Type II MOV (with indicator/remote signaling), Up=2.5kV, In=20kA (8/20uS) Transformerless 99.1% 98.5% <4W NEMA MA Type 4X Variable speed cooling fans -22°F to +140°F / -30°C to +60°C (derating from +108°F / +42°C) -40°F to +158°F / -40°C to +70°C maximum 0-100% 8202ft / 2500m (no derating) <65dBA@1 m and 25°C LED Indicators, WiFi + APP Modbus R5485 CPS FIexOM Gateway (1 per 32 inverters) SunSpec/CPS Standard / (with FIexOM Gateway) 45.28x24.25x9.84in (1150x616x250mm) with Standard Wire -box 39.37x24.25x9.84in (1000x616x250mm) with Centralized Wire -box Inverter: 121 Ibs / 55kg; Wire -box: 551bs / 25kg (Standard Wire -box); 331bs / 15kg (Centralized Wire -box) 15 - 90 degrees from horizontal (vertical or angled) M10 Stud Type Terminal [30] (Wire range:1/0AWG - 500kcmil CU/AL, Lugs not supplied) Screw Clamp Terminal Block [N] (#12 - 1/OAWG CU/AL) Screw Clamp Fuse Holder (Wire range: #12 - #6AWG CU) - Standard Wire -box Busbar, M10 Bolts (Wire range: #1AWG - 500kcmil CU/AL [1 termination per pole], #1AWG - 300kcmil CU/AL [2 terminations per pole], Lugs not supplied) - Centralized Wire -box 20A fuses provided (Fuse values up to 30A acceptable) UL1741-SA-2016, 1741 -SA -2016, CSA-C22.2 NO.107.1-01, IEEE 1547a-2014; FCC PART15 IEEE 1547a-2014, CA Rule 21, ISO -NE Volt-RideThru, Freq-RideThru, Ramp -Rate, Specified-PF, Volt-VAr, Freq-Watt, Volt -Watt 5 years 10, 15 and 20 years FOR COMMERCIAL OR INDUSTRIAL BUILDINGS, PLEASE COMPLETE THE FOLLOWING INFORMATION: Business Name: Address: Business Owner: Home Address: CBEP Solar 7, LLC PO Box 1255 Cloudbreak Energy Partners, LLC PO Box 1255 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 Zachary Brammer TITLE COO PHONE (970) 425-3175 (970) 425-3175 Sterling, CO 80751 (970) 425-3175 Sterling, CO ADDRESS PO Box 1255, Sterling, CO 80751 Rebecca Gallery Partner (970) 573-6440 PO Box 1255, Sterling, CO 80751 James Cleland CEO (970) 425-3175 PO Box 1255, Sterling, CO 80751 Business Hours: 8-5 UTILITY SHUT OFF LOCATIONS: Main Electrical: Gas Shut Off: Depicted on USR Map Days: M -F N/A Exterior Water Shutoff: N/A Interior Water Shutoff: N/A 12/15/21 12 CLOUDBREAK CBEP SOLAR 5, LLC PO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 10, 2022 PROJECT: Griffiths #1 Solar Project SUBJECT: Johnstown and Milliken Notice of Inquiries Both the Town of Johnstown and the Town of Milliken expressed interest in annexing the property on their notice of inquiry forms. After discussing the possibility of annexation with the landowner, the landowner decided to not move forward with annexation into either municipality at this time. The landowner's preference for the time being was to stay in unincorporated Weld County. The Town of Milliken did not request any changes to our project design. However, the Town of Johnstown made the following requests: 1 Ensure there is space for a 55' half -width right of way to allow for the future expansion County Road 48.5 a. This project does not have a boundary along County Road 48.5, so this is not applicable to this particular project 2. Ensure there is space for a 55' half -width right of way to allow for the future expansion of County Road 19 a. CBEP Solar 5 has incorporated a 55' setback from the western property line 3. Ensure there is space for a 75' half -width right of way to allow for the future expansion of Highway 60 a. The Project's boundary is more than 75' away from Highway 60 4. Ensure there is at least 30' of space for a future sewer easement along the eastern side of the property a. In coordination with the Town and the landowner, we have incorporated the proposed route of the sewer easement into our USR Map. 5. Ensure that access from Highway 60 is coordinated with the Town and the Utilities Department a. CBEP Solar 5 is coordinating with the landowner and the Town about the potential access from Highway 60. (970) 425-3175 I I N FO©a CLOU DBREAKEN ERGY.COM I CLOUDBREAKENERGY.COM ERGY.COM Notice of Inquiry Weld County Pre -application Case # PRE22-0043 Date of Inquiry 3/9/2022 Municipality Johnstown CPA Name of Person Inquiring Zachary Brammer Property Owner Arthur M. Griffiths Planner Diana Aungst Planner Phone Number 970-400-3524 Planner Email Address daungst@weldgov.com Legal Description SW4 Section 3, T4N, R67W; Lot B of RE -1772 Parcel Number 105903200041 Nearest Intersection CR 48 1/2 and 257 HWY of Inquiry 2 Solar Facilities Type The above person met with County Planning staff about developing a parcel of land inside your designated Intergovernmental Agreement/Coordinated Planning Agreement Boundary. ir:Ixoet County Planner's signature Would you like to pursue annexation of this property? NO YES X Date of Contact 3-14-2022 Comments: See attached comment letter. Planning & Dev Director 3-14-22 Signature of Municipality Representative Title Date Please sign and date to acknowledge that the applicant has contacted you and return this signed form to Weld County Department of Planning Services. Weld County Planning Department 1555 N 17th Ave, Greeley, CO 80631 (970) 400-6100 '-- (970) 304-6498 Fax 20181107 TO: 'THE COMMUNITY THAT CARES' Town of Johnstown Dianna Aungst, Weld County Planner, daungst@weldgov.com CC: Zach Brammer, zach@cloudbreakenergy.com FROM: Kim Meyer, Director Planning & Development RE: Weld County Pre -App Request for Griffiths Community Solar Gardens (PRE22-0043) DATE: March 14, 2022 Sent via email only. This proposed solar project is located within the Town of Johnstown Growth Management Area, on land anticipated for future development. The 2021 Johnstown Area Comprehensive Plan indicates anticipated medium intensity and density development, with a mix of uses, along this high -traffic Highway 60 "gateway" corridor. Our economic development manager has indicated the desire to work with future developers along this corridor to create an area for light industrial and employment uses along the Hwy 60 corridor, to complement the uses at the Colorado Sweet Gold site as well as the east -end industrial uses in Johnstown. We would be interested in pursuing annexation of this property. The Town has also been investigating the ability to extend Weld County Road (CR) 19 north to CR 48.5 to increase the transportation connectivity of this area with the overall community, especially in light of the location and proximity of the existing railroad tracks to Hwy 60. We are in the beginning stages of a full replacement for our Central Waste Water Treatment Plant, as well as a connection of a large sanitary sewer interceptor that will extend north to CR 48.5, and along CR 50 to the west to serve our growing community. Obtaining the necessary easement has been discussed with the current property owners, and the Town would like to see that accommodated in any revised site plans. Screening and overall development scenario seems acceptable, otherwise. The Community That Cares johnstown.colorado.gov P: 970.587.4664 1450 S. Parish Ave, Johnstown CO 80534 I F: 970.587.0141 Town Requests /Recommendations: 1. If there is any desire to annex the property, &/or create an area for a more commercial or employment type development at the CR 19 "intersection" frontage, the Town would be welcome the change to discuss those opportunities with the Applicant and Owner. 2. Please provide dedication of appropriate rights -of -way to ensure the ability to create a more complete transportation system in this area. a. CR 48.5 (55' half -width) b. CR 19 (55' half -width) c. Hwy 60 (75' half -width) 3. Ensure provision of a 30' sanitary sewer easement, to be identified and dedicated, in coordination with our Utilities Department. 4. Access from Hwy 60 will need to be further coordained with the Town and our Utilities Department, if the intent is to use existing access drives across/along the railroad. Thank you for the opportunity to comment on this proposed project. 7/8/22, 7:50 AM Cloudbreak Mail - Weld County Notice of Inquiry - Parcel 105903200041 CLOUD B R EA KTM Zach Brammer <zach@cloudbreakenergy.com> Weld County Notice of Inquiry - Parcel 105903200041 15 messages Zach Brammer <zach@cloudbreakenergy.com> Mon, Mar 14, 2022 at 11:35 AM To: kmeyer@johnstownco.gov Hi Kim, We are a local solar development company that is planning to build two solar projects on Parcel ID 105903200041 in Weld County which is located in the Intergovernmental Agreement area with Johnstown. Because of this, as part of our application process with Weld, we need someone at Johnstown to complete the attached Notice of Inquiry. If you need a physical copy, just let me know and I will drop it off tomorrow. If you are not the correct person to contact, I would greatly appreciate it if you could point me in the right direction. Let me know if you have any questions or need any additional information from me! Thanks, Zach Zach Brammer Co -Founder I COO Cloudbreak Energy Partners CLOUDBREAFC o: (970) 425-3175 I c: (970) 580-5652 zach@cloudbreakenergy.com cloudbreakenergy.com 9 218 S 3rd Street, Sterling, CO 80751 Notice of Inquiry - Johnstown - Griffiths.pdf 565K Kim Meyer <KMeyer@johnstownco.gov> Mon, Mar 14, 2022 at 11:51 AM To: Zach Brammer <zach@cloudbreakenergy.com>, Diana Aungst <daungst@weldgov.com> Here you go, Zach. Would love to get a chance to discuss with you, further. Kim Kim Meyer I Planning & Development Director Town of Johnstown p: 970.587.4664 / kmeyer@johnstownco.gov Planning Webpage: https://johnstown.colorado.gov/planning All PROJECT SUBMITTALS should be emailed to: planning@johnstownco.gov to ensure proper routing and submittal acceptance. [Quoted text hidden] https://mail.google.com/mail/u/0/?ik=230bff7673&view=pt&search=all&permthid=thread-a%3Ar411151569402159123&simpl=msg-a%3Ar-8652966239... 1/6 7/8/22, 7:50 AM Cloudbreak Mail - Weld County Notice of Inquiry - Parcel 105903200041 2 attachments so 2022-03-14 Jtown response.docx 263K oi Johnstown Referral Comments 3-10-22.docx 13K Zach Brammer <zach@cloudbreakenergy.com> To: Kim Meyer <KMeyer@johnstownco.gov> Cc: Diana Aungst <daungst@weldgov.com>, Alec Shobe <alec@cloudbreakenergy.com> Kim, Thanks for the quick response! Would be happy to discuss this further with you. What times work best this week for a call? Best, Zach [Quoted text hidden] Mon, Mar 14, 2022 at 1:29 PM Diana Aungst <daungst@weldgov.com> Mon, Mar 14, 2022 at 1:38 PM To: Kim Meyer <KMeyer@johnstownco.gov>, Zach Brammer <zach@cloudbreakenergy.com> Thanks Kim Diana Aungst Planner Weld County Department of Planning Services 1555 N. 17th Avenue - Greeley, Colorado 80631 D: 970-400-3524 O: 970-400-6100 Fax:970-304-6498 daungst@ weldgo v. com www. weldgo v. corn Confidentiality Notice: This electronic transmission and any attached documents or other writings are intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential or otherwise protected from disclosure. If you have received this communication in error, please immediately notify sender by return e-mail and destroy the communication. Any disclosure, copying, distribution or the taking of any action concerning the contents of this communication or any attachments by anyone other than the named recipient is strictly prohibited. https://mail.google.com/mail/u/0/?ik=230bff7673&view=pt&search=all&permthid=thread-a%3Ar411151569402159123&simpl=msg-a%3Ar-8652966239... 2/6 7/8/22, 7:50 AM Cloudbreak Mail - Weld County Notice of Inquiry - Parcel 105903200041 From: Kim Meyer <KMeyer@JohnstownCO.gov> Sent: Monday, March 14, 2022 11:52 AM To: Zach Brammer <zach@cloudbreakenergy.com>; Diana Aungst <daungst@weldgov.com> Subject: RE: Weld County Notice of Inquiry - Parcel 105903200041 Caution: This email originated from outside of Weld County Government. Do not click links or open attachments unless you recognize the sender and know the content is safe. [Quoted text hidden] Zach Brammer <zach@cloudbreakenergy.com> To: Kim Meyer <KMeyer@johnstownco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com> Hi Kim, Do you have time for a call tomorrow or early next week to discuss the project? Thanks, Zach [Quoted text hidden] Thu, Mar 17, 2022 at 10:12 AM Kim Meyer <KMeyer@johnstownco.gov> To: Zach Brammer <zach@cloudbreakenergy.com> Cc: Alec Shobe <alec@cloudbreakenergy.com> Next week is possible. Tuesday, 3/22, I have an opening at 3PM, if that works? I can set up a Zoom for us - or feel free to shoot an invitation for Temas/Zoom my way. [Quoted text hidden] Zach Brammer <zach@cloudbreakenergy.com> To: Kim Meyer <KMeyer@johnstownco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com> Tuesday at 3PM works! If you could set up the Zoom, that would be great. Thanks, Zach [Quoted text hidden] Zach Brammer <zach@cloudbreakenergy.com> To: Kim Meyer <KMeyer@johnstownco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com> Thu, Mar 17, 2022 at 10:47 AM Thu, Mar 17, 2022 at 10:52 AM Tue, Mar 22, 2022 at 3:54 PM Hi Kim, Thanks again for taking the time to meet with us today! As we discussed, I have attached an ALTA survey for the Griffiths property. Let me know if you have any questions! Best, Zach [Quoted text hidden] sr G RIFFITHS_BOUNDARY PLAT_REV1 _FINAL. pdf https://mail.google.com/mail/u/0/?ik=230bff7673&view=pt&search=all&permthid=thread-a%3Ar411151569402159123&simpl=msg-a%3Ar-8652966239... 3/6 7/8/22, 7:50 AM 2562K Cloudbreak Mail - Weld County Notice of Inquiry - Parcel 105903200041 Kim Meyer <KMeyer@johnstownco.gov> To: Zach Brammer <zach@cloudbreakenergy.com> Cc: Alec Shobe <alec@cloudbreakenergy.com> Tue, Mar 22, 2022 at 4:33 PM Thanks! Here's info I promised related to annexation - again, it's about a 4 month process or so - and we could run that concurrently with a Site Development Plan for the site. No application fees, but there is a reimbursement agreement/cost deposit for direct expenses incurred by the Town from publication costs and attorney's fees. Site Dev Plan review would not require a traffic study or utility report, but we would need drainage/grading/stormwater plans as the main component of your engineering and construction docs. Let me know if you think you might move forward with the Town, and you'd like me to get some initial comments from our internal reviewers before you revise & finalize your plans. Appreciate the discussion! [Quoted text hidden] 9 attachments EA 'Hut 41 EXAMPLE Annexation map 20200061027.pdf 1037K EXAMPLE Ridge Zoning map 20200061029.pdf 980K Annexation Est Zoning Checklist 8-24-20.pdf 392K Annexation Impact Report Form Template.docx 14K Annexation petition template - Weld.docx 18K Certification of Mineral Estate Owner Notification 4-5-21.docx 308K File Naming 08-2021.pdf 910K Land Use Application Form new draft 01-22.pdf 865K Site Development Plan Checklist 2022.pdf 687K Zach Brammer <zach@cloudbreakenergy.com> To: Kim Meyer <KMeyer@johnstownco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com> Wed, Mar 23, 2022 at 8:27 AM Thanks for sending all of this over, Kim! We'll review all of this with the landowner and get back to you as soon as possible. Best, Zach [Quoted text hidden] https://mail.google.com/mail/u/0/?ik=230bff7673&view=pt&search=all&permthid=thread-a%3Ar411151569402159123&simpl=msg-a%3Ar-8652966239... 4/6 7/8/22, 7:50 AM Cloudbreak Mail - Weld County Notice of Inquiry - Parcel 105903200041 Zach Brammer <zach@cloudbreakenergy.com> To: Kim Meyer <KMeyer@johnstownco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com> Hi Kim, Hope you had a great weekend! Tue, Mar 29, 2022 at 3:44 PM I had the chance to meet with the landowner, and he is potentially interested in annexing the property into Johnstown, but he needs some time to think through the decision and consider all of his options (Milliken was also interested in annexing). So the plan he and I came up with is that we are going to continue permitting the solar projects with Weld County while he and his family figure out the pros/cons of annexation (at some point, he will likely be reaching out to you to set up another meeting to discuss) and then make the final annexation decision after our USR process with Weld is complete. So, for the time being, we are going to continue pursuing a USR permit from Weld. I will be sure all of the items we discussed are included in the site plans. Also, I might have lost it somewhere, but have you had the chance to fill out the NOI form for Weld County? I've attached it below for your review. Thanks, Zach [Quoted text hidden] Notice of Inquiry - Johnstown - Griffiths (1).pdf 565K Zach Brammer <zach@cloudbreakenergy.com> To: Kim Meyer <KMeyer@johnstownco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com> Hi Kim, Sorry to bother you about this again, but have you had a chance to complete the notice of inquiry form? Thanks, Zach [Quoted text hidden] Fri, Apr 1, 2022 at 2:15 PM Kim Meyer <KMeyer@johnstownco.gov> To: Zach Brammer <zach@cloudbreakenergy.com> Cc: Alec Shobe <alec@cloudbreakenergy.com>, Diana Aungst <daungst@weldgov.com> Sorry! Thanks for the nudge. I believe I had already provided this to Diana at the county. Cc'd just in case... [Quoted text hidden] 2 attachments Notice of Inquiry - Johnstown - Griffiths 3-14-22.pdf 614K 2022-03-14 Jtown reponse Weld County Notice of Inquiry.pdf 499K Fri, Apr 1, 2022 at 2:21 PM Zach Brammer <zach@cloudbreakenergy.com> To: Kim Meyer <KMeyer@johnstownco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com>, Diana Aungst <daungst@weldgov.com> Fri, Apr 1, 2022 at 2:22 PM Perfect, thanks Kim! Have a great weekend. https://mail.google.com/mail/u/0/?ik=230bff7673&view=pt&search=all&permthid=thread-a%3Ar411151569402159123&simpl=msg-a%3Ar-8652966239... 5/6 7/8/22, 7:50 AM Cloudbreak Mail - Weld County Notice of Inquiry - Parcel 105903200041 [Quoted text hidden] Diana Aungst <daungst@weldgov.com> To: Zach Brammer <zach@cloudbreakenergy.com>, Kim Meyer <KMeyer@johnstownco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com> Thanks! I do have this. Diana Aungst Planner n. Weld County Department of Planning Services 1555 N. 17th Avenue - Greeley, Colorado 80631 D: 970-400-3524 0: 970-400-6100 Fax:970-304-6498 daungst@weldgov.com www. weldgov.com f V Mon, Apr 4, 2022 at 9:56 AM Confidentiality Notice: This electronic transmission and any attached documents or other writings are intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential or otherwise protected from disclosure. If you have received this communication in error, please immediately notify sender by return e-mail and destroy the communication. Any disclosure, copying, distribution or the taking of any action concerning the contents of this communication or any attachments by anyone other than the named recipient is strictly prohibited. From: Zach Brammer <zach@cloudbreakenergy.com> Sent: Friday, April 1, 2022 2:22 PM To: Kim Meyer <KMeyer@johnstownco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com>; Diana Aungst <daungst@weldgov.com> Subject: Re: Weld County Notice of Inquiry - Parcel 105903200041 Caution: This email originated from outside of Weld County Government. Do not click links or open attachments unless you recognize the sender and know the content is safe. Perfect, thanks Kim! Have a great weekend. [Quoted text hidden] https://mail.google.com/mail/u/0/?ik=230bff7673&view=pt&search=all&permthid=thread-a%3Ar411151569402159123&simpl=msg-a%3Ar-8652966239... 6/6 7/8/22, 7:45 AM CLOUDBREAKTM PRE22-0043 NOI 3 messages Cloudbreak Mail - PRE22-0043 NOI Zach Brammer <zach@cloudbreakenergy.com> Pepper McClenahan <pmcclenahan@millikenco.gov> To: Zach Brammer <zach@cloudbreakenergy.com>, Diana Aungst <daungst@weldgov.com> Cc: Cheryl Powell <CPowell@millikenco.gov>, Caree Rinebarger <CRinebarger@millikenco.gov> Good afternoon, Thu, Mar 17, 2022 at 3:54 PM Please see attached NOI. As the location is adjacent to the existing Milliken Municipal Limits, we would be interested in discussing if the property owner is interested in annexing into Milliken. Please let me know and I will be happy to schedule a meeting with Town staff and the property owner. Kind regards, Pepper D. McClenahan, AICP Community Development Director Town of Milliken 1101 Broad Street P.O. Box 290 Milliken, CO 80543 www.millikenco.gov (970) 660-5046 pmcclenahan@millikenco.gov NOI PRE22-0043.PDF 744K Zach Brammer <zach@cloudbreakenergy.com> Wed, Mar 30, 2022 at 1:54 PM To: Pepper McClenahan <pmcclenahan@millikenco.gov> Cc: Cheryl Powell <CPowell@millikenco.gov>, Caree Rinebarger <CRinebarger@millikenco.gov>, Alec Shobe <alec@cloudbreakenergy.com> Hi Pepper, Thanks for filling out the NOI for us! I had the chance to meet with the landowner to discuss this yesterday, and he is potentially interested in annexing the property into Milliken, but he needs some time to think through the decision and consider all of his options (Johnstown was also interested in annexing). So the plan he and I came up with is that we are going to continue permitting the solar projects with Weld County while he and his family figure out what is best for them in the long term (at some point, he will likely be reaching out to you to set up another meeting to discuss this) and then make the final annexation decision after our USR process with Weld is complete. So, for the time being, we are going to continue pursuing a USR permit from Weld, but we want to stay in touch about the annexation. Let me know if you have any questions or want to discuss this further. https://mail.google.com/mail/u/0/?ik=230bff7673&view=pt&search=all&permthid=thread-P/03A1727585649847847929&simpl=msg-P/03A172758564984... 1/2 7/8/22, 7:45 AM Cloudbreak Mail - PRE22-0043 NOI Best, Zach [Quoted text hidden] Zach Brammer Co -Founder I COO Cloudbreak Energy Partners CLOUDBREAK`" U o: (970) 425-3175 I c: (970) 580-5652 zach@cloudbreakenergy.com cloudbreakenergy.com 218 S 3rd Street, Sterling, CO 80751 Pepper McClenahan <pmcclenahan@millikenco.gov> Thu, Mar 31, 2022 at 9:31 AM To: Zach Brammer <zach@cloudbreakenergy.com> Cc: Cheryl Powell <CPowell@millikenco.gov>, Caree Rinebarger <CRinebarger@millikenco.gov>, Alec Shobe <alec@cloudbreakenergy.com> Thank you, Zach. We look forward to visiting with the landowner about their interest in annexation to Milliken. Have a wonderful day. Pepper D. McClenahan, AICP Community Development Director Town of Milliken 1101 Broad Street P.O. Box 290 Milliken, CO 80543 www.millikenco.gov (970) 660-5046 pmcclenahan@millikenco.gov [Quoted text hidden] https://mail.google.com/mail/u/0/?ik=230bff7673&view=pt&search=all&permthid=thread-f%3A1727585649847847929&simpl=msg-f%3A172758564984... 2/2 Notice of Inquiry Weld County Pre -application Case # PRE22-0043 Date of Inquiry 3/9/2022 Municipality Milliken CPA Name of Person Inquiring Zachary Brammer Property Owner Arthur M. Griffiths Planner Diana Aungst Planner Phone Number 970-400-3524 Planner Email Address daungst©weldgov.com Legal Description SW4 Section 3, T4N, R67W; Lot B of RE -1772 Parcel Number 105903200041 Nearest Intersection CR 48 1/2 and HWY 257 of Inquiry 2 Solar Facilities Type - The above person met with County Planning staff about developing a parcel of land inside your designated Intergovernmental Agreement/Coordinated Planning Agreement Boundary. County Planner's signature Would you like to pursue annexation of this property? NO YES )re Date Contact 3 a lo -�x of Comments: ro„to *s Ara Mir 71 air dih RAta teN ofki in 3 -- /6 e -a -- / 04491", rn piroci,r sift. Sign t e of Municipality Representative Title Date Please sign and date to acknowledge that the applicant has contacted you and return this signed form to Weld County Department of Planning Services. Weld County Planning Department 1555 N 17th Ave, Greeley, CO 80631 (970) 400-6100 (970) 304-6498 Fax 20181107 Diana Aungst From: Pepper McClenahan <pmcclenahan@millikenco.gov> Sent: Friday, July 29, 2022 3:49 PM To: Diana Aungst; Zach Brammer Cc: Alec Shobe; Rosie Stewart; Caree Rinebarger; Cheryl Powell Subject: RE: Weld County Notice of Inquiry - Griffiths Solar Gardens Caution: This email originated from outside of Weld County Government. Do not click links or open attachments unless you recognize the sender and know the content is safe. Good afternoon Diana, Per our call, Milliken would entertain a Petition to Annex at the request of and timing of the property owner. It seems unlikely that the Town would require a pre -annexation agreement since no Milliken services are being requested. Kind regards and have a great day. Pepper D. McClenahan, MCP Community Development Director Town of Milliken 1101 Broad Street P.O. Box 290 Milliken, CO 80543 www.millikenco.gov (970) 660-5046 pmcclenahan@millikenco.gov From: Diana Aungst <daungst@weldgov.com> Sent: Monday, July 25, 2022 6:30 PM To: Zach Brammer <zach@cloudbreakenergy.com>; Pepper McClenahan <pmcclenahan@millikenco.gov> Cc: Alec Shobe <alec@cloudbreakenergy.com>; Rosie Stewart <rosie@cloudbreakenergy.com>; Caree Rinebarger <CRinebarger@millikenco.gov>; Cheryl Powell <CPowell@millikenco.gov> Subject: Re: Weld County Notice of Inquiry - Griffiths Solar Gardens Hi Pepper: Does the Town require a pre -annexation agreement? Any other comments based on the response that stated that the Town wishes to annex. Thanks, Diana daungst@weldgov.com 970-400-3524 From: Zach Brammer <zach@cloudbreakenergy.com> Sent: Monday, July 25, 2022 6:20 PM To: Pepper McClenahan <pmcclenahan@millikenco.gov> Cc: Diana Aungst <daungst@weldgov.com>; Alec Shobe <alec@cloudbreakenergy.com>; Rosie Stewart <rosie@cloudbreakenergy.com>; Caree Rinebarger <CRinebarger@millikenco.gov>; Cheryl Powell 1 <CPowell@millikenco.gov> Subject: Re: Weld County Notice of Inquiry - Griffiths Solar Gardens Caution: This email originated from outside of Weld County Government. Do not click links or open attachments unless you recognize the sender and know the content is safe. Great, thanks Pepper! Also, apologies everyone, I realized that I attached the unsigned version of the NOI form in my original email. I have attached the signed copy here. On Mon, Jul 25, 2022 at 5:48 PM Pepper McClenahan <pmcclenahan@millikenco.gov>wrote: Good evening Zach, Thank you for reaching out. I've cc'd our Town Administrator, Cheryl Powell, on this email as well. We are happy to visit with Diana regarding Milliken's interest in Annexation. Have a great evening. Pepper D. McClenahan, AICP Community Development Director Town of Milliken 1101 Broad Street P.O. Box 290 Milliken, Co 80543 www.millikenco.gov (970) 660-5046 pmcclenahan@millikenco.gov From: Zach Brammer <zach@cloudbreakenergy.com> Sent: Monday, July 25, 2022 2:53 PM To: Pepper McClenahan <pmcclenahan@millikenco.gov> 2 Cc: Diana Aungst <daungst@weldgov.com>; Alec Shobe <alec@cloudbreakenergy.com>; Rosie Stewart <rosie@cloudbreakenergy.com> cl ou d b rea ken ergy.com> Subject: Weld County Notice of Inquiry - Griffiths Solar Gardens Hi Pepper, I hope you had a great weekend! As you may remember from our conversations in March, we are working on two projects (located right next to each other on parcels 105903300002 and 105903300001) in unincorporated Weld County that are located in an intergovernmental agreement area with Milliken. We briefly discussed this back in March and you had signed the attached NOI for us, and we subsequently discussed the idea of annexation with the landowner and he wasn't interested at this time, but would potentially be open to it in the future. Diana Aungst from Weld County (who is cc'ed here) wanted to discuss this further with you, so I will let you two take it from here, but let me know how I can be helpful and let us know if you need anything else from us! Thanks, Zach UNIIM Zach Brammer Co -Founder I COO Cloudbreak Energy Partners CL©UDBREAK'TM c 71/41 o: (970) 425-3175 I c: (970) 580-5652 zach@cloudbreakenergy.com cloudbreakenergy.com 218 S 3rd Street, Sterling, CO 80751 3 4847774 08/11/2022 11:28 AM Total Pages: 5 Rec Fee: $33.00 Carly Koppes - Clerk and Recorder, Weld County , CO MEMORANDUM OF LAND LEASE OPTION AGREEMENT THIS MEMORANDUM OF LAND LEASE OPTION AGREEMENT ("Memorandum") is entered into as of A v3 isi 1O , 2022 by and between Arthur Griffiths ("Landlord"), and CBEP Solar 7, LLC, a Delaware limited liability company, and its successors and assigns ("Tenant"). RECITALS A. Landlord and Tenant have entered into that certain Land Lease Option Agreement (the "Lease Option"), dated A usys-i-to , 2022 (the "Effective Date"), whereby Landlord has granted Tenant the right to conduct due diligence on the Landlord's Property and an option to lease and develop a portion of the Landlord's Property, together with easement rights across said Landlord's Property, in the County of Weld, State of Colorado, and being more particularly described in Schedule A attached hereto and made a part hereof (the "Landlord's Property"). B. This Memorandum is being executed and recorded to evidence the Lease Option and shall not be construed to limit, amend or modify the provisions of the Lease Option in any respect. MEMORANDUM 1. LANDLORD. The name of the Landlord is Arthur Griffiths, with an address of 9216 County Road 48 '�2, Johnstown, CO 80534. 2. TENANT. The name of the Tenant is CBEP Solar 7, LLC, a Delaware limited liability company, having an address of 4845 Pearl East Circle, Suite 118 #53242, Boulder, Colorado 80301, and its successors and assigns. 3. LEGAL DESCRIPTION. The specific legal description of the Landlord's Property is described on Schedule A and is incorporated herein by this reference. 4. OPTION TERM. Landlord's Property to determine the Lease Option is a period A„At,s4 ID , 2024. The y Landlord has granted Tenant the right to conduct due diligence on the if the Tenant would like to enter into a lease. The initial option term of which commenced on Aid us -F to , 2022 and ends on option may be extended, at enant's discretion, for one (1) calendar 5. LEASE TERM. In the event the option is exercised under the Lease Option, the lease which is incorporated in the Lease Option (the "Lease") will commence on the Lease Commencement Date (as defined in the Lease Option) and shall expire on the twentieth (20t11) anniversary of Substantial Completion of the Solar Farm (as defined in the Lease Agreement). 6. EXTENSION TERMS. Tenant has the option to extend the Lease for three (3) additional extension terms of five (5) years each on the terms and conditions more particularly set forth in the Lease Option. 7. EASEMENTS. In connection with the Lease Option, Landlord has granted or has agreed to grant Tenant a number of easements on, over, through, or across Landlord's Property, which axe fully described in the Lease Option. 1 4829-4436-8616.3 4847774 08/11/2022 11:28 AM Paget of5 8. OTHER TERMS. In addition to those terms referenced herein, the Lease Option contains numerous other terms, covenants and conditions, and notice is hereby given that reference should be made to the Lease Option directly with respect to the details of such terms, covenants, and conditions. In the event of a conflict between the provisions of this instrument and the Lease Option, the provisions of the Lease Option shall control. 9. AGREEMENT TO COOPERATE. At the request of Landlord after expiration of the termination of the Lease Option, Tenant shall reasonably cooperate with Landlord in all respects with obtaining the removal of the Memorandum from title, including without limitation executing a termination of Memorandum in form reasonably required by Landlord. IN WITNESS WHEREOF, the undersigned have caused this instrument to be executed as of the date first written above. LANDLORD Arthur Griffiths STATE OF COLORADO )ss. COUNTY OF initteneY The foregoing instrument was acknowledged before me on this 2022, by Pcirenow- LriVt Witness my hand and official seal MELLISSA EST ER MILOSKY NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20224018697 MY COMMISSION EXPIRES MAY 10, 2026 • Notary Public ;thday of Aw3ut [Remainder of page intentionally blank. Signatures continue on following pages.] 2 4829-4436-8616.3 4847774 08/11/2022 11:28 AM Page 3of5 TENANT CBEP Solar 7, LLC, a Delaware limited liability company By: Cloudbreak Energy Holdco. LLC, its Member By: ..... mow_ Nai .: Zac , ry Brammer Tit e: Authorized Signatory STATE OF COLORADO ) l ss. COUNTY OF Lay ) The foregoing instrument was acknowledged before me on this a day of bySignatory LLC. Zachary Brammer, the Authorized of CBEP Solar 7, L C, a Delaware limited liability company, on behalf of the limited liability company. Witness my hand and official seal MELLISSA ESTHER MILD KY NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20224018697 MY COMMISSION EXPIRES MAY 10, 2026 Notary Public 3 4829-4436-8616.3 4847774 08/11/2022 11:28 AM Page 4of5 SCHEDULE A Being a portion of Lot A as shown on a recorded survey at Reception No. 4825199 of the Official Public Records of Weld County, Colorado and being in the North Half of the South Half of Section 3, Township 4 North, Range 67 West of the 6th Principal Meridian, Weld County Colorado LESS AND EXCEPT the following described parcel: COMMENCING at a found 2-1/2 " aluminum cap stamped "PLS 28285" for the West Quarter Corner of said section 3. THENCE: S 89° 02' 49" E, 33.00 Feet to the true POINT OF BEGINNING for this description, said Point of Beginning being the Northwest corner of said Lot A. THENCE: S 89° 02' 49" E, 1243.39 Feet along the North line of said Lot A to a found 3-1/4" aluminum cap stamped "LS 7242) for the West 1/16 CC Corner of said Section 3. THENCE: Continuing along said North line, S 89° 02' 57" E, 109.61 Feet. THENCE: Leaving said North line, S 00° 48' 08" W, 519.59 Feet. THENCE: S 89° 07' 17" E, 400.59 Feet. THENCE: S 00° 55' 54" W, 791.04 Feet to the South line of said Lot A. THENCE: S 89° 07' 48" W, along said South line, 468.90 Feet. THENCE: Continuing along said South line, N 62° 38' 25" W, 78.96 Feet. THENCE: Continuing along said South line, N 88° 02' 49" W, 1197.63 Feet to the Southwest corner of said Lot A. THENCE: N 00° 07' 24" E, along the West line of said Lot A, 1254.90 Feet to the POINT OF BEGINNING. CONTAINING: 46.46 Acres more or less. Subject Parcel contains 90.42 acres as shown on said recorded survey LESS AND EXCEPT 46.46 Acres for a net of 43.96 Acres more or less. SURVEYOR'S CERTIFICATION THIS IS TO CERTIFY THAT THIS PLAT REPRESENTS A SURVEY PERFORMED ON THE GROUND BY ME OR UNDER MY DIRECT SUPERVISION AND SAID SURVEY COMPLIES WITH THE MINIMUM STANDARDS AND OTHER REQUIREMENTS OF THE COLORADO BOARD OF REGISTRATION FOR ENGINEERS, SURVEYORS AND ARCHITECHS. 4 4829-4436-8616.3 4847774 08/11/2022 11:28 AM Page 5of5 ictricknii R. HOWARD DAGGETT, CO PLS #37945 5 DATE: AUGUST 2, 2022 4829-4436-8616.3 CLOUDBREAK CBEP SOLAR 7, LLC ISO BOX 1255 STERLING, CO 80751 (970) 425-3175 INFO c©CLOUDBREAKENERGY.COM DATE: July 28, 2022 PROJECT: Griffiths #2 Solar Project SUBJECT: Utility and Other Infrastructure Owners Infrastructure Owner Name Address Sewer Line of Johnstown 450 CO S 80534 Parish Ave, Johnstown, Town Overhead Electric Lines Xcel Company Energy of (Public Colorado) Service 414 Minneapolis, Nicollet Mall, MN 401-9, 55401 Ditch Easement Spaur LLC 3801 Berthoud, County CO Road 80513 46, Pipeline Easement Xcel Company Energy of (Public Colorado) Service 414 Minneapolis, Nicollet Mall, MN 401-9, 55401 Pipeline Easement Panhandle Company Eastern Pipeline 8111 Dallas, Westchester 75225 Drive TX Ditch Big Thompson River Ditch and Company Platte PO 80543 Box 181, Milliken, CO (970) 425-3175 I I N FO©a CLOU DBREAKEN ERGY.COM I CLOUDBREAKENERGY.COM ERGY.COM Weld County Treasurer Statement of Taxes Due Account Number R6904898 Parcel 105903200041 Legal Description PT SW4 3-4-67 LOT B REC EXEMPT RE-i 772 (2RR1,50R4S) Situs Address 9216 COUNTY ROAD 48 1/2 WELD Account: R6904898 GRIFFITHS ARTHUR M 9216 COUNTY ROAD 48 1/2 JOHNSTOWN, CO 80534-9500 Year Tax Interest Fees Payments Balance Tax Charge 2021 $4,146.68 $0.00 $0.00 ($4,146.68) $0.00 Total Tax Charge $0.00 Grand Total Duel as of 08/19/2022 $0.00 Tax Billed at 2021 Rates for Tax Area 0533 - 0533 Authority WELD COUNTY SCHOOL DIST RE5J NORTHERN COLORADO WATER (NC FRONT RANGE FIRE RESCUE (JO AIMS JUNIOR COLLEGE HIGH PLAINS LIBRARY WEST GREELEY CONSERVATION Taxes Billed 2021 SENIOR Net Taxes Billed for 2021 * Credit Levy Mill Levy 15.0380000* 50.8840000* 1.0000000 11.5 590000 6.3420000 3,1970000 0.4140000 Amount $812.66 $2,749 79 $54.04 $624.65 $342,72 $172.77 $22.37 88.4340000 $4,779 00 ($632.32) $4,146.68 Values AG -FLOOD IRRRIGATED LAND AG -DRY FARM LAND AG -GRAZING LAND AG -WASTE LAND FARM/RANCH RESIDENCE -IMPS OTHER BLDGS.- AGRICULTURAL Total Actual Assessed $99,103 $28,740 $955 $241 $17 $297,594 $12,605 $280 $70 $10 $21,280 $3,660 $410,515 $54,040 ALL TAX LIEN SALE AMOUNTS ARE SUBJECT TO CHANGE DUE TO ENDORSEMENT OF CURRENT TAXES BY THE 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 parcel have been paid in full. Date: 1 q. 2O22 Hello