USVI Public Records

Document text

U.S. Virgin Islands DPNR Major Coastal Zone Management Permit Application– Tier 1 For a Proposed Solar Energy Facility with Battery Storage Parcel No. 17 Remainder Bovoni Estate Bovoni, St. Thomas, U.S. Virgin Islands HTA Project No. 23.141001.00 October 2025 Applicant: STB Solar, LLC A VIelectron, LLC Company Table of Contents 1. Form L&WD-2 - Major Coastal Zone Management Permit Application 2. Form L&WD-3 - Zoning Requirements 3. Form L&WD-4 - Major Project Summary Data 4. Form L&WD-5 - Proof of Legal Interest 5. Form L&WD-6 - Income Tax Clearance Letter 6. Form L&WD-7 - Corporations and Associates 7. Form L&WD-8 - NFIP Flood Zone Designation 8. Approved Permit Letter Request for Partial Clearing 9. Environmental Assessment Report (EAR) Narrative 10. Attachment A –Deed / STB Solar, LLC – Subsidiary of VIelectron, LLC Documentation 11. Attachment B – Property Tax Clearance Letter 12. Attachment C – NOI and Construction SWPPP 13. Attachment D – Biological Study 14. Attachment E – Archaeological Study 15. Attachment F – Driveway Permit Application and Plans 16. Attachment G – Site and Erosion Control Plans 17. Attachment H – Required Maps and Plans a. FEMA Firm Map b. NRCS Soil Survey Map 18. Attachment I – Hydrology Report L&WD Forms GOVERNMENT OF THE VIRGIN ISLANDS OF THE UNITED STATES DEPARTMENT OF PLANNING AND NATURAL RESOURCES DEVELOPMENT PERMIT APPLICATION FORM L&WD-2 PERMIT APPLICATION Date Received:____________ Date Declared Complete:___________ Permit No.__________ Application is hereby made for a Earth Change/Coastal Zone Permit 1. Name, mailing address and telephone number of applicant. 2. Name, title, mailing address and telephone number of owner of property and of developer. Owner Developer _________________________________ ______________________________ _________________________________ ______________________________ _________________________________ ______________________________ 3. Location of activity. Plot No. ______________________________________________ Estate _________________________________ Island ___________________________ 4. Zoning District ___________________________________________________________ 5. Name, mailing address and telephone number of project designer. ________________________________________________________________________ ________________________________________________________________________ 6. Name, mailing address and telephone number of principal earthwork contractor. ________________________________________________________________________ ________________________________________________________________________ 7. Summary of proposed activity. Include all incidental improvements such as utilities, roads, etc. (Use additional sheets if necessary). ________________________________________________________________________ ________________________________________________________________________ 7a. State type of Land Uses as specified in the VI Zoning Law, which are applied for e.g., restaurant, hotel, single dwelling, etc. _______________________________________________________________________ _______________________________________________________________________ Quantum Solar, LLC - Subsidiary of VIelectron, LLC STB SOLAR, LLC PMB 348 00830 Mongoose Solar, LLC 5000 Estate Enighed, PMB 348 St John, VI 00830 (508) 965-8637 1-508-965-8637 Bovoni Property 17, LLC PO Box 267 St. Thomas, VI 00804 N/A STB Solar, LLC 5000 Est. Enighed, Ste 4a PMB 14 1-508-965-8637 109402010100 Bovoni Saint Thomas Commercial Zone (C) Hoyle Tanner & Associates, Inc. - 603-431-2520 183 International Drive, Suite 200, Portsmouth, NH 03801 The proposed solar energy facility activities will involve: land clearing; additional and medium voltage electrical contractor with various components consisting of Estate Bovoni is within Commercial Zone C which permits the use of alterna and components set forth in Section 228 of the VI Zoning Law. c/o Christian Loranger 5000 Est. Enighed, Ste 4a PMB 146 St. John, U.S.V.I. 830 FORM L&WD-2/PERMIT APPLICATION CONT’D 8. Date activity is proposed to start _______________, be completed_________________ 9. Classification of minor or major permit. Check one: ( ) Minor Permit Application ( ) Major Permit Application State below which criterion applies in making above check. __________________________________________________________________ 10. Application is hereby made for a permit to authorize the activities described herein. I agree to provide any additional information/data that may be necessary to provide reasonable assurance or evidence to show that the proposed project will comply with the applicable territorial water quality standard or other environmental protection standards both during construction and after the project is completed. I also agree to provide entry to the project site for inspectors from the environmental protection agencies for the purpose of making inspections regarding this application, and that to the best of my knowledge and belief the information provided herein, is true, complete and accurate. I further certify that I possess the authority to undertake the proposed activities. Signature of Applicant or Agent Date ________________________________ ____________ Signature of Owner (Where Applicant or Agent is not Owner) __________________________________ ____________ ———————————————————————————————————————— FOR DEPARTMENT USE ONLY Inspector Record Date Inspected:______________ ( )Permit Approved ( )Permit Disapproved Inspector’s Remarks:____________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________ _________________ Inspector Date ________________________________________________ _________________ Commissioner, Planning & Natural Resources Date 11/1/2025 4/1/2026 Public Hearing, Environmental Assessment Report and a Pre-Application M GOVERNMENT OF THE VIRGIN ISLANDS OF THE UNITED STATES DEPARTMENT OF PLANNING AND NATURAL RESOURCES DEVELOPMENT PERMIT APPLICATION FORM L&WD-3 ZONING REQUIREMENTS TABLE The following table shall be completed by the applicant with entries as appropriate for the zoning district in which the activity is taking place. Not all the requirements will necessarily apply to a particular zone. Consult the Zoning Law. For your guidance also consult the zoning Requirement Matrix attached to the application forms, i.e., for a R-2 zone only items 1 through 11 will apply. Applicants Name:_______________________ Signature:______________________Date: _______ Location of Activity-Plot No._______________Estate ______________________Island_________ Zoning District:__________________________________________________________________ 1. Proposed use (residential etc.)_________________________________________________ 2. Accessory use if any _______________________________________________________ 3. Number of on site parking spaces Existing_______________proposed__________________ 4. Area of lot, (sq. ft. or acreage)________________________________________________ 5. Area covered by proposed and existing buildings, (sq. ft.) _______________________________________________________________________ 6. Setback of building from street property line, (ft.) _______________________________________________________________________ 7. Side yard setback ft)________________________________________________________ 8. Rear yard setback (ft) ______________________________________________________ 9. Height of building (ft. or stories depending on zone) _________________________________ 10. Proposed:________________________________________________________________ 11. Lot width at street line (ft.) ___________________________________________________ 12. Area of usable open space (sq. ft. and (%) of lot ___________________________________ 13. Persons per acre ratio ______________________________________________________ 14. Floor area ratio ___________________________________________________________ 15. Number of onsite parking and loading spaces ______________________________________ 16. Building setback (yards 11, W-2 only)___________________________________________ ————————————————————————————————————————— FOR DEPARTMENT USE ONLY Inspector:__________________________ Date:________________ Permit No.______________ STB Solar, LLC Christian Loranger 109402010100 Bovoni Staint Thomas Commercial Zone (C) Alternative and Renewable Energy Systems - Electrical substations N/A N/A N/A 30.95 Ac. (1,348,229 Sq. Ft.) N/A - no existing or proposed buildings N/A - no proposed building N/A N/A N/A - no proposed building (panels set 24" above ground) Solar Energy Facility with Battery Storage N/A - no residential lots proposed N/A N/A N/A N/A GOVERNMENT OF THE VIRGIN ISLANDS OF THE UNITED STATES DEPARTMENT OF PLANNING AND NATURAL RESOURCES DEVELOPMENT PERMIT APPLICATION FORM L&WD-4 MAJOR PROJECT SUMMARY DATA Section I. Applicant 1. Name, address and telephone number of applicant. __________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 2. Name, address and telephone number of owner of Property and of developer. __________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Section II. Summary of Proposed Development 3. Describe the proposed development ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ Section III. Description of Proposed Development 4. Name of development_______________________________________________________ 5. Plot No. _________________________________________________________________ 6. Zoning District:____________________________________________________________ 7. PWD Map No. 8. Proposed use (residential, etc. as listed in Zoning Law):______________________________ __________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ 9. Accessory use if any________________________________________________________ Quantum Solar, LLC - Subsidiary of VIelectron, LLC (Applicant and Developer) 5000 Est. Enighed, Ste 4a PMB 146 St. John, U.S.V.I. 00830 1-508-965-8637 Bovoni Property 17, LLC PO Box 267 St. Thomas, VI 00804 N/A The proposed development is a solar energy facility with battery storage anticipated to generate clean energy to the Water and Power Authority (WAPA) grid while intended to work within the existing grades and outside the flood zone to minimize the impacts on the surrounding land. Appropriate screening, stormwater and erosion control measures will be implemented to limit visibility from surrounding properties and ensure all impervious cover is addressed, if applicable. Bovoni Solar Energy Facility with Battery Storage 109402010100 Commercial Zone (C) A9-553-T000 Estate Bovoni is within Commercial Zone C which permits the use of alternative and renewable energy systems and components set forth in Section 228 of the VI Zoning Law. N/A FORM L&WD-4 MAJOR PROJECT SUMMARY DATA Cont’d 10. Area of Lot(s) (acreage) _____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 11. Area covered by existing buildings (sq. ft.) ________________________________________ 12. Area covered by proposed buildings (sq. t.)________________________________________ 13. Floor area total ____________________________________________________________ 14. Floor area ratio (B-1, B-2 zones only) ____________________________________________ 15. Number of buildings_________________________________________________________ 16. Number of units total ________________________________________________________ Person Persons 17. Schedule of units: Efficiencies —————- x 1.5 Unit ————=——————— 1 bedroom —————————x 2 ——————=——————— 2 bedroom —————————x 3 ——————=——————— 3 bedroom —————————x 4 —————————=———— Other ————————— x —————————=———— Total Persons ————————————————————— 18. Number of on site parking and loading spaces ______________________________________ 19. Maximum building height (stories/ft) _____________________________________________ 20. Adjoining property land use(s)__________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 21. Setback of building from street property line (ft)_____________________________________ 22. Sideyard setback (ft)________________________________________________________ 23. Rear yard setback (ft) _______________________________________________________ 24. Density (person/acre)________________________________________________________ 25. Area of usable open space (sq. ft. % of lot)________________________________________ 30.95 Ac. (1,348,229 Sq. Ft.) N/A - no existing buildings N/A - no proposed building(s) N/A N/A N/A N/A N/A N/A N/A - no proposed building (panels set 24" above ground) The majority of adjoining properties of Bovoni 17 Remainder, Bovoni Estate have a land use designation of Industrial (District 6), while the very northeast side has a land use designation of Conservation (District 1). N/A N/A N/A N/A FORM L&WD-4 MAJOR PROJECT SUMMARY DATA Cont’d Section IV. Comments 26. Proposed Potable Water Supply (method & quality estimate gal/day) _____________________________________________________________________________ 27. Proposed Sewage Treatment (method & quality estimate gal/day) _____________________________________________________________________________ 28. Proposed Solid Waste Disposal (method & quality estimate lbs/day) _____________________________________________________________________________ 29. Proposed Electrical Supply (method & demand estimate KWH for single & 3 phase) _____________________________________________________________________________ 30. Air Conditioning (method & demand estimate (KWH) _____________________________________________________________________________ 31. Other Utilities_____________________________________________________________ ____________________________________________________________________________ 32. Other___________________________________________________________________ _____________________________________________________________________________ Section V. 33. Will the development extend onto or adjoin any beach tidelands, submerged lands or public trustlands? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 34. Will the development maintain, enhance or conflict with public access to the shoreline and along the coast? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 35. Will the development protect or provide moderate income housing opportunities? Will it displace moderate income housing? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 36. How will the development affect traffic on the coastal access roads? ____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ Signature of owner or authorized agent Date N/A N/A N/A The proposed solar facility anticipates generating 10.725MWdc which is then inverted to 10MWac (10MWac to WAPA Grid and remaining stored in on-site batteries). 3-phase supply with an estimated 18 kWh. N/A A connection to the existing WAPA grid will be required to allow the stored energy from the solar facility to fed the grid at a maximum allowed rate per any grid interconnection study performed for the area. The site shall not exceed 10 MWac output/export into the WAPA grid. N/A No. There is no known existing public access to the shoreline or along the coast; however, should any access become known prior to construction the development anticipates to maintain any such access. No residential development is being proposed therefore would protect all existing income housing opportunities. The proposed project should have no adverse affect to traffic on the coastal access roads. No parking is proposed and any trips generated will be from infrequent maintainance vehicles that will park along side the proposed gravel roads. GOVERNMENT OF THE VIRGIN ISLANDS OF THE UNITED STATES DEPARTMENT OF PLANNING AND NATURAL RESOURCES DEVELOPMENT PERMIT APPLICATION FORM L&WD-5 PROOF OF LEGAL INTEREST AFFIDAVIT I, being duly sworn depose and say that: Applicant(s)* (or John Doe of Entity Applicant) 1. ____________________________________am/is the (check one) (I or Entity/Applicant)  Record title owner (fee simple)  Lessee  Other (specify) Of the real property described as Parcel No(s) Estate Quarter Island *Applicant(s) is required to provide documentation for legal interest stated above (e.g. deed, lease, etc.) 2. I have the irrevocable approvals, permission, or power of attorney from all other persons with a legal interest in the property to undertake the work proposed in the permit application as more fully set forth in the exhibit (s) attached hereto: Signature Date Signature Date Print Print The foregoing instrument was acknowledged before me this day of 20 by at county (Name or Name/Title of Entity) of . Notary Public My Commission expires Christian Loranger of STB Solar, LLC (Subsidiary of VIelectron, LLC) Christian Loranger 109402010100 Bovoni No. 1&2 Frenchman's Bay Saint Thomas GOVERNMENT OF THE VIRGIN ISLANDS OF THE UNITED STATES DEPARTMENT OF PLANNING AND NATURAL RESOURCES DEVELOPMENT PERMIT APPLICATION PUBLIC NOTICE (SUPPLEMENT TO FORM L&WD-6) Pursuant to Act 5270, as approved by the Governor of the Virgin Islands on July 30, 1987, amending Section 910 (a) (2) and 911 (d) (2) of the Coastal Zone Management Act (Title 12, VI Code, Chapter 21), all applicants for Coastal Zone Management permits are required to present “certification from Bureau of Internal Revenue and Department of Finance” indicating “that the applicant has filed and paid all taxes, penalties and interest, and from the Office of the Lieutenant Governor that the applicants has filled its required annual report or has satisfactorily made agreement to pay the taxes or fill the required reports “12 VIC 910 (a) (2) (C), and “ (2) A coastal zone permit that includes an occupancy or development lease shall only be granted for a particular parcel of filled land for a lease period of not more than 20 years; provided that nothing in this subsection shall prohibit a lessee or permittee from executing a new lease at the end of the 20 year period. Any lease executed at the end of the lease period shall meet the requirements of this Chapter and shall be approved by the Governor and ratified by the Legislature, or in the event the Legislature is not in session, by the Committee on Planning and Environmental Protection. For applicants not required by law to submit an annual report or to satisfactorily make an agreement to pay taxes or file the required reports, a letter from the Bureau of Internal Revenue, and/or the Department of Finance, and/or the Lieutenant Governor’s office so indicating will be required to continue further processing of the application. Accordingly, all Coastal Zone Management permit applications (both minor and major), which are not accompanied by the certificates, as required by Act 5290, or written notification from said agencies indicating waiver or exemption of these requirements will not be accepted by the permitting office, It is the responsibility of each applicant to demonstrate compliance with the provisions of this Act. GOVERNMENT OF THE VIRGIN ISLANDS OF THE UNITED STATES -0- VIRGIN ISLANDS BUREAU OF INTERNAL REVENUE (DPNR FORM L&WD-6) APPLICATION FOR TAX FILING AND PAYMENT STATUS REPORT** Date:___________ The applicant identified below hereby requests a letter certifying his or her tax filing and payment status for the purpose of receiving a Coastal Zone Management Permit from the Virgin Islands Department of Planning and Natural Resources pursuant to Act 5270, amending Sections 910 (a)(2) and 911 (d)(2) of the Coastal Zone Management Act (Title 12, Chapter 21, Virgin Islands Code). The applicant authorizes the Bureau of Internal Revenue to disclose any taxpayer information necessary to process this application to the Virgin Islands Department of Planning and Natural Resources, who may make such further disclosures as are necessary to carry out the requirements of the Coastal Zone Management Act, as amended. Name:________________________________________________________________________ Business Name:________________________________________________________________ EIN/TIN:______________________________________________________________________ SSN:_________________________________________________________________________ Please Indicate: _______*Corporation Type of Business:___________________ _______*Partnership _______ Individual Please circle forms that you use: 1120, 1120s, _______Other 1065,1040, 941 VI, 722 VI, 720, 720 VI, 720 BVI, 50VI, other (list) Date Business Started:___________________________________________________________ Person Representing Applicant:________________________Position:_____________________ Signature:_____________________________________________________________________ Mailing Address:_______________________________________________________________ Date:________________________ Telephone Number:__________________________ Reply to: #1A Lockharts Garden, St. Thomas VI 00802 or 4008 Estate Diamond, St. Croix VI 00820 * Partnerships and/or Corporations must list partners/ corporate officers, social security numbers and addresses on a seperate sheet and attach it to this application. As manager STB SOLAR, LLC STB SOLAR, LLC Solar Development Christian Loranger Manager 5000 Estate Enighed, PMB 348, St John, VI 00830 (508) 965-8637 10/15/2025 10/15/2025 66-1110485 Christian Loranger Quantum Solar, LLC (Subsidiary of VIelectron, LLC) Bovoni Property 17, LLC PO Box 267 St. Thomas, VI 00804 N/A N/A N/A Hoyle Tanner & Associates, Inc. 109402010100 Bovoni No. 1&2 Frenchman's Bay "X" and "VE" This project is a proposed Solar Energy Facility with battery storage intended to be designed so that the limits of construction are outside of the 100-year "VE" flood zone. 14 N/A The proposed Solar Energy Facility intends to work within the existing grades on-site and will be constructed with rows of racks and panels that are nearly entirely previous limiting any adverse effects on existing runoff and erosion into the coast. Approved Permit Letter Request for Partial Clearing Christian Loranger CB Loranger Companies 5000 Estate Enighed, Suite 4a, PMB348 St. John, USVI 00830 Web: www.cbloranger.com October 10, 2023 via email to jp.oriol@dpnr.vi.gov The Honorable Jean-Pierre L. Oriol, Commissioner Department of Planning and Natural Resources 4611 Tutu Mall Park Suite 300, Second Floor St. Thomas, VI 00802 RE: Rem. 17 Bovoni Solar Energy Facility Permit Letter Request Dear Commissioner Oriol: VIElectron, LLC ( VIElectron) has signed a Power Purchase Agreement (PPA) with the Virgin Islands Water and Power Authority (VIWAPA) to construct several Solar Energy Facilities in the U.S. Virgin Islands. One solar energy facility will be located at the south-eastern end of St. Thomas at Rem. 17 Estate Bovoni. This site is located in the Coastal Zone (Tier I).This system is being designed to generate about 13 MWdc of electrical power and will cover a land area of approximately 30 acres. This facility will be designed to provide power directly to the local grid throughout the day, while also charging an on-site battery energy storage systems (BESS). The battery system will provide power to the grid during nighttime hours or cloudy days with lower solar field output. For this project, the intention is to work within the existing grades and outside the limits of any flood zones that may exist to minimize the impacts on the existing properties while installing the solar panel modules, and any associated infrastructure. Over the next couple of months, VIElectron will be preparing and submitting A Major Land CZM Permit Application for the Bovoni Solar Project. In this regard, a CZM Pre-Application Meeting organized by the DPNR CZM Division was held on Thursday, October 5, 2023. As you know, the Major CZM Application Process can take quite a few months to complete. In the interim, VIElectron would like to proceed with some critical, preliminary work on the Bovoni Site to include installing fencing around the perimeter of the property; conducting a Phase I Archeological Study, as well as Topographic and Boundary Surveys. To this end, VIElectron kindly seeks your approval to allow a partial clearing of the Site using transects as VIELECTRON Bovoni, St. Thomas Solar Farm Permit Request per the attached plan shown below. The plan depicts clearing a 15’ swath around the perimeter of the projects for fencing and 15’ wide transects in an east-west direction through the sites for proper site investigations. 40’ of vegetation will be left between the transects. Thank you for your careful consideration of this request. Your approval and support of this matter will be greatly appreciated and will have a significant impact to the timeline of these projects which are critical to the significant improvement to the power reliability on St. Thomas. If you have any questions or concerns, please contact me at (508) 985 5637. Sincerely, VIElectron LLC Christian B. Loranger Manager PROPOSED MULCH BERM AT BOTTOM OF THE DOWNHILL SLOPE (TYP) TOTAL AREA TO BE CLEARED (9.49± ACRES) APPROXIMATE PROPERTY LINE PER USVI MAP GEO (TYP) PROPOSED LIMITS OF CLEARING (TYP) 40' WIDE OF EXISTING VEGETATION TO REMAIN BETWEEN TRANSECTS (TYP) PROPOSED 15' CLEARING ALONG THE PERIMETER OF THE SITE TO ALLOW FOR FENCE INSTALLATION (TYP) PROPOSED 15' CLEARED TRANSECT RUNNING EAST-WEST (TYP) N VIelectron, LLC SITE CLEARING PLAN BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI LOT AREA: 30.50± ACRES CLEARING AREA: 9.49± ACRES PROJECT LOCATION LEGEND SEPTEMBER 20, 2023 SCALE: 1" = 250' CLEARING NOTES: 1. A REGISTERED LAND SURVEYOR SHALL CLEARLY MARK THE PROPERTY LINES, OUTER LIMITS OF CLEARING AND CENTERLINE OF EACH TRANSECT PRIOR TO THE START OF ANY WORK. 2. TRANSECTS MAY BE FIELD ADJUSTED AROUND OBSTACLES SUCH AS LARGE ROCKS. 3. ALL CLEARING SHALL BE COMPLETED WITH A LOW GROUND PRESSURE SKID STEER OR TRACK EXCAVATOR WITH A MULCHING ATTACHMENT TO REMOVE AND GRIND THE TREES AND VEGETATION WITHIN 2 INCHES OF THE EXISTING GROUND SURFACE. ALL ROOTS AND STUMPS SHALL REMAIN IN PLACE WITH NO SOIL DISTURBANCES. EXCESS MULCH SHALL BE PLACED IN A BERM AT THE BOTTOM OF THE DOWNHILL SLOPES AS SHOWN FOR EROSION CONTROL. Environmental Assessment Report (EAR) Narrative SECTION 1.00 – APPLICANT INFORMATION Applicant STB Solar, LLC c/o Christian Loranger 5000 Est Enighed, STE 4A, PMB 146 Saint John, VI 00830 (508) 965-8637 SECTION 2.00 – LOCATION OF PROJECT The proposed solar energy facility (“the project”) is located in Tier I (coastal zone), near the eastern section of United States Virgin Island St. Thomas, near the existing landfill, on a parcel identified as No. 17 Remainder Bovoni (Parcel No. 109402010100). The project is expected to be completed in one phase. SECTION 3.00 – ABSTRACT The existing site has been extensively disturbed, previously used for agricultural purposes, and is vacant and primarily consists of overgrown woods, grass and mixed growth vegetation where stormwater flows downhill in the southern direction of the site towards the coast. The 100-year flood zone “VE” is present and runs along the coastline; however, the proposed project is entirely within zone “X” and does not anticipate affecting any flooding on-site due to the hydrological outfall is the ocean. Please refer to the Existing Conditions Plan as part of Attachment G and FEMA Firm Map as part of Attachment H. Based on a recently performed Biological Study (included as Attachment D), although tree boas were not found on the site, conditions of the site fall well within their habitat preference, and the area is within their distribution range. In particular, care should be taken to protect the endangered species of the tree boas and should be closely watched by equipment operators, surveyors and all workers on-site. DPNR should be notified if one is seen so the species can be removed and relocated accordingly. Based on a recently performed Archeological Study (included as Attachment E), there are no known cultural resources that would be impacted by the proposed project. Due to the location of the site in relation to nearby airports, a Glint & Glare Study was not required for the site; therefore, the solar system runs along the east-west axis. SECTION 4.00 – STATEMENT OF OBJECTIVES The proposed project intends to work within the existing grades and outside the limits of the flood zone to minimize the impacts on the surrounding land while installing the solar panel modules, and any associated infrastructure, to connect to the Water and Power Authority (WAPA). The system itself is designed to provide power directly to the local grid throughout the day, while also charging one (1) on-site battery energy storage system (BESS). SECTION 5.00 – DESCRIPTION OF PROJECT 5.01 – Summary of Proposed Activities The proposed activities for the installation of the project includes; an initial survey and staking the limits of all work, constructing the stabilized construction entrance, installing silt fences and other various perimeter erosion control measures prior to any site clearing and grubbing. On December 1, 2023, a Permit Letter Request was approved allowing for partial clearing of the site for 15’ wide perimeter around the project area for fence installation and 15’ wide transects in the east-west direction for proper site investigation at 40’ intervals between each transect. Currently the site has been cleared according to the approved letter (included as part of this application) and appropriate erosion control measures are already in place. Once additional permits are obtained, the remaining activities for installation will include; the installation of the security fence, construction of the 20’ wide gravel access roads, construction of any stormwater rock berms and other best management practices, installation of the solar racking screws, construction of the solar racking system and installation of the solar panels, then the installation of all conduit runs and electrical equipment. The project area should be seeded in any disturbed areas that appear bare after construction. 5.02 – Purpose of Project The proposed project intends to generate clean energy for WAPA and ultimately to the residences of the Virgin Islands. The battery system will provide power to the grid during nighttime hours or cloudy days with lower solar field output for a more consistent power supply. 5.03 – Presence and Location of Any Critical Area(s) The site may contain steep slopes and several drop-offs. There are no ghuts present on-site. There are no wetlands present on-site. 5.04 – Proposed Method of Construction The clearing and grubbing for the site has been, and will continue to be, completed with a low ground pressure skid steer or track excavator with a mulching attachment to remove and grind the trees and vegetation within 2-inches of the existing ground surface to preserve all topsoil and allow existing roots to remain. The majority of the mulch is left in place, while any excess mulch is placed in a perimeter berm along the downhill slopes toward the coast. The proposed racking system is supported on 2.375-inch diameter ground screws that are installed into the ground setting the lower end of the panels approximately 24-inches above ground. The proposed technology utilizes First Solar Series-6 465W solar panel modules set at either a 10- or 20- degree tilt, depending on the orientation of existing slopes – the site experiences reverse slopes along the north side of the property. Each panel is placed within a galvanized ground mounted racking system, custom made specifically for the USVI to withstand 180 mph wind speeds, installed in rows running in the east-west direction, where each row is spaced to provide a minimum two (2) feet of clearance between adjacent solar panels; depending on the existing slopes of the site some five (5) and eight (8) foot clearances are necessary especially to the north where the site experiences reverse slopes. At the end of each row, all power lines used to operate the solar panels will be distributed above ground to connect to the equipment pads where the low-voltage wires will run through a Class 2 Circuit (CAV) system and the high-voltage wires will run through conduits on concrete pads. For installation of the solar panels and associated racking system within the steep slopes of the site, cut ins and steps may need to be constructed for access. No proposed water, sewer, lighting or stormwater infrastructure (i.e. inlets, manholes, etc.) as part of this project. 5.05 – Provisions to Limit Site Disturbance The on-going clearing and mulching of the site, cutting all trees and vegetation within 2-inches of the existing ground, allows all roots and stumps to remain in place creating no soil disturbance and preserving all topsoil and maintaining ground stabilization. No potable water, sewer or stormwater infrastructure (i.e. inlets, manholes, infiltration basins) are proposed therefore no excavation is required. All electrical runs, both low- and high-voltage, will be distributed above ground on concrete pads eliminating the need for excavation therefore minimizing any earth disturbance. Cut ins and steps along the steep slopes will be constructed only on an as needed basis to install the solar system to reduce the overall ground disturbance of the site. 5.06 – Erosion and Sedimentation Controls The project proposes erosion and sedimentation controls to ensure the site’s disturbance material is contained on-site that includes, but are not limited to, site fencing, mulch-in-place and perimeter berms, temporary and permanent rock berms, and natural spray tack adhesives for necessary stepping access paths, as needed, for installation requirements on steep slopes. 5.07 – Construction Activities and Erosion Control Implementation Methods The current construction activities of partially clearing the site have implemented erosion control methods including mulch-in-place, mulch berms, and silt fencing. These methods have proven to be very effective construction means and methods on site and will continue to be used throughout the duration of construction for the project. Construction and installation of the ground screws and racking system within the steep slopes on-site will have additional erosion control methods implemented where cut ins and steps may be required. Silt fencing and natural spray tack adhesives should be used, as needed, for sections of the cuts and/or steps that appear to fail on-site during construction activities. Temporary rock berms may be necessary in areas that form stormwater flow paths due to construction activities, especially during heavy rains. Permanent rock berms will be installed within the project area at locations that demonstrate forming flow paths to prevent future stormwater erosion. Please refer to the Hydrology Report as part of Attachment I. 5.08 – Maintenance of Erosion and Sediment Control Measures The contractor will be responsible for implementing all erosion and sediment control devices needed to stabilize the project area during construction with both temporary and permanent measures to prevent excess runoff, due to construction, to the on-site ghuts and/or off-site to the coast. All temporary stabilization measures will be removed after the site has been stabilized and/or construction is complete. Erosion control measures are to be inspected weekly and after every heavy rainfalls within 24 hours. 5.09 – Method of Sewage Disposal The proposed project does not include any residential or office spaces producing sewage waste and therefore methods of disposal is not applicable. 5.10 – Drawings and Plans Please refer to Construction Plans as part of Attachment G. 5.11 – Proposed New Development Work Plan Please refer to Construction Plans as part of Attachment G. Attachment A – Lease Agreement / STB Solar, LLC – Subsidiary of VIelectron, LLC Documentation Attachment B – Property Tax Clearance Letter Attachment C – NOI and Construction SWPPP Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni i Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: Proposed Solar Energy Facility with Battery Storage Parcel No. Bovoni 17 Remainder of Estate Bovoni, Western Por. No. 1&2 Frenchman’s Bay Quarter, St. Thomas, VI 00802 SWPPP Prepared For: Quantum Solar, LLC Subsidiary of VIELECTRON, LLC c/o Christian Loranger 5000 Est. Enighed, Ste 4a PMB 146, St. John, U.S.V.I. 00830 Phone: 508-965-8637 nbdsolar@gmail.com SWPPP Prepared By: Hoyle, Tanner & Associates, Inc. 95 E. Mitchell Hammock Road, Suite 200 Oviedo, FL 32765 603-431-2520 SWPPP Preparation Date: 10/14/2025 Estimated Project Dates: 11/01/2025 – 07/01/2026 Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni ii Contents SECTION 1: CONTACT INFORMATION/RESPONSIBLE PARTIES ................................................. 1 1.1 Operator(s) / Subcontractor(s) ................................................................................. 1 1.2 Stormwater Team ....................................................................................................... 2 SECTION 2: SITE EVALUATION, ASSESSMENT, AND PLANNING ................................................ 4 2.1 Project/Site Information ............................................................................................. 4 2.2 Discharge Information ............................................................................................... 4 2.3 Nature of the Construction Activities ........................................................................ 5 2.4 Sequence and Estimated Dates of Construction Activities .................................... 6 2.5 Authorized Non-Stormwater Discharges .................................................................. 6 2.6 Site Maps ..................................................................................................................... 7 SECTION 3: DOCUMENTATION OF COMPLIANCE WITH OTHER FEDERAL REQUIREMENTS ...... 7 3.1 Endangered Species Protection ............................................................................... 7 3.2 Historic Property Screening Process ........................................................................ 10 3.3 Safe Drinking Water Act Underground Injection Control Requirements ............. 11 SECTION 4: EROSION AND SEDIMENT CONTROLS .................................................................. 12 4.1 Natural Buffers or Equivalent Sediment Controls ................................................... 12 4.2 Perimeter Controls .................................................................................................... 12 4.3 Sediment Track-Out ................................................................................................. 12 4.4 Stockpiled Sediment or Soil ..................................................................................... 12 4.5 Minimize Dust ............................................................................................................ 13 4.6 Minimize Steep Slope Disturbances ........................................................................ 13 4.7 Topsoil ........................................................................................................................ 14 4.8 Soil Compaction ....................................................................................................... 14 4.9 Storm Drain Inlets ...................................................................................................... 14 4.10 Constructed Site Drainage Feature ........................................................................ 14 4.11 Sediment Basins ........................................................................................................ 14 4.12 Chemical Treatment ................................................................................................ 14 4.13 Dewatering Practices .............................................................................................. 14 4.14 Other Stormwater Controls ...................................................................................... 14 4.15 Site Stabilization ........................................................................................................ 15 SECTION 5: POLLUTION PREVENTION STANDARDS ................................................................. 16 5.1 Potential Sources of Pollution .................................................................................. 16 5.2 Spill Prevention and Response ................................................................................ 17 5.3 Fueling and Maintenance of Equipment or Vehicles ........................................... 17 5.4 Washing of Equipment and Vehicles ..................................................................... 17 5.5 Storage, Handling, and Disposal of Building Products, Materials, and Wastes ... 17 5.6 Washing of Applicators and Containers used for Paint, Concrete or Other Materials .................................................................................................................................. 18 5.7 Fertilizers .................................................................................................................... 18 5.8 Other Pollution Prevention Practices ...................................................................... 18 SECTION 6: INSPECTION, MAINTENANCE, AND CORRECTIVE ACTION ................................. 19 6.1 Inspection Personnel and Procedures .................................................................... 19 6.2 Corrective Action ..................................................................................................... 20 6.3 Delegation of Authority ........................................................................................... 21 SECTION 7: TURBIDITY BENCHMARK MONITORING FROM DEWATERING DISCHARGES ....... 22 Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni iii SECTION 8: CERTIFICATION AND NOTIFICATION ................................................................... 22 SWPPP APPENDICES ................................................................................................................. 23 Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 1 SECTION 1: CONTACT INFORMATION/RESPONSIBLE PARTIES 1.1 Operator(s) / Subcontractor(s) Operator(s): Quantum Solar, LLC Subsidiary of VIELECTRON, LLC Christian Loranger 5000 Est. Enighed, Ste 4a PMB 146 St. John, U.S.V.I 00830 Phone 508-965-8637 nbdsolar@gmail.com Area of Control: Entire Site Emergency 24-Hour Contact: VIELECTRON Christian Loranger Phone 508-965-8637 Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 2 1.2 Stormwater Team Stormwater Team Name and/or Position, and Contact Responsibilities I Have Completed Training Required by VI CGP Part 6 I Have Read the CGP and Understand the Applicable Requirements Christian Loranger QUANTUM SOLAR, LLC Owner 508-965-8637 nbdsolar@gmail.com Developer ☐ Yes ☐ No ☐ Yes Date: Christian Loranger VIELECTRON, LLC Operator 508-965-8637 nbdsolar@gmail.com Operator; Inspections of stormwater controls ☐ Yes ☐ No ☐ Yes Date: Hoyle Tanner & Associates Engineer 603-431-2520 SWPPP Development ☐ Yes ☐ No ☐ Yes Date: Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 3 Stormwater Team Members Who Conduct Inspections Pursuant to CGP Part 4 Name and/or Position and Contact Training(s) Received Date Training(s) Completed If Training is a Non-EPA Training, confirm that it Satisfies the Minimum Elements of VI CGP Part 6 Christian Loranger Quantum Solar, LLC Subsidiary of VIELECTRON Operator 508-965-8637 nbdsolar@gmail.com Insert Title of Training Received Date: Click here to enter a date. ☐ Principles and practices of erosion and sediment control and pollution prevention practices at construction sites ☐ Proper installation and maintenance of erosion and sediment controls and pollution prevention practices used at construction sites ☐ Performance of inspections, including the proper completion of required reports and documentation, consistent with the requirements of Part 4 See Appendix I for required Training Documentation. Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 4 SECTION 2: SITE EVALUATION, ASSESSMENT, AND PLANNING 2.1 Project/Site Information Project Name and Address Proposed Solar Energy Facility with Battery Storage - Bovoni Parcel No. Bovoni 17 Remainder of Estate Bovoni, Western Por. No. 1&2 Frenchman’s Bay Quarter, St. Thomas, VI 00802 Project Latitude/Longitude Latitude: 18.3089º N (decimal degrees) Longitude: - 64.8828 º W (decimal degrees) Latitude/longitude data source: ☐ Map ☐ GPS ☒ Other (please specify): Google Earth Horizontal Reference Datum: ☐ NAD 27 ☐ NAD 83 ☒ WGS 84 Additional Site Information Is your site located on Indian country lands, or on a property of religious or cultural significance to an Indian Tribe? ☐ Yes ☒ No 2.2 Discharge Information Does your project/site discharge stormwater into a Municipal Separate Storm Sewer System (MS4)? Are there any waters of the U.S. within 50 feet of your project’s earth disturbances? ☐ Yes ☒ No ☐ Yes ☒ No Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 5 For each point of discharge, provide a point of discharge ID (a unique 3-digit ID, e.g., 001, 002), the name of the first receiving water that receives stormwater directly from the point of discharge and/or from the MS4 that the point of discharge discharges to, and the following receiving water information, if applicable: Point of Discharge ID Name of receiving water that receives stormwater discharge: Is the receiving water impaired (on the CWA 303(d) list)? If yes, list the pollutants that are causing the impairment: Has a TMDL been completed for this receiving waterbody? If yes, list TMDL Name and ID: Pollutant(s) for which there is a TMDL: Is this receiving water designated as a Tier 2, Tier 2.5, or Tier 3 water? If yes, specify which Tier (2, 2.5, or 3)? 001 Unidentified Water – 800042165 ☐ Yes ☒ No ☐ Yes ☒ No ☐ Yes ☒ No 002 Unidentified Water – 800042287 ☐ Yes ☒ No ☐ Yes ☒ No ☐ Yes ☒ No Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 5 2.3 Nature of the Construction Activities General Description of Project Installation of a solar farm at Bovoni 17 Remainder, Western Por. No. 1&2 Frenchman’s Bay Quarter, St. Thomas, U.S. Virgin Islands. The parcel is roughly 30.9 acres and undeveloped. Approximately 27.9 acres will be used for the installation of a solar farm designed to generate about 10 MW of power. The site is currently being cleared where mulched vegetation is being mulched-in-place. The project consists of the installation of ground screws for the solar racking units where panels will be held. Installation of electrical equipment and conduits will be installed in concrete pads above ground, and access to the site will be through a gravel access drive. No grading is proposed on-site. Business days and hours for the project: 6am-7pm Daily Size of Construction Site Size of Property 30.93 +/- Acres Total Area Expected to be Disturbed by Construction Activities 27.94 +/- Acres Maximum Area Expected to be Disturbed at Any One Time, Including On-site and Off-site Construction Support Areas 27.94 +/- Acres Type of Construction Site (check all that apply): ☐ Single-Family Residential ☐ Multi-Family Residential ☐ Commercial ☐ Industrial ☐ Institutional ☐ Highway or Road ☐ Utility ☒ Other __Solar Energy Facility_________ Will you be discharging dewatering water from your site? ☐ Yes ☒ No If yes, will you be discharging dewatering water from a current or former Federal or State remediation site? ☐ Yes ☒ No Pollutant-Generating Activities List and describe all pollutant-generating activities and indicate for each activity the associated pollutants or pollutant constituents that could be discharged in stormwater from your construction site. Take into account where potential spills and leaks could occur that contribute pollutants to stormwater discharges, and any known hazardous or toxic substances, such as PCBs and asbestos, that will be disturbed during construction. Pollutant-Generating Activity (e.g., paving operations; concrete, paint, and stucco washout and waste disposal; solid waste storage and disposal; and dewatering operations) Pollutants or Pollutant Constituents (e.g., sediment, fertilizers, pesticides, paints, caulks, sealants, fluorescent light ballasts, contaminated substrates, solvents, fuels) Demolition/Clearing Sediment, debris Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 6 Pollutant-Generating Activity (e.g., paving operations; concrete, paint, and stucco washout and waste disposal; solid waste storage and disposal; and dewatering operations) Pollutants or Pollutant Constituents (e.g., sediment, fertilizers, pesticides, paints, caulks, sealants, fluorescent light ballasts, contaminated substrates, solvents, fuels) Use of heavy equipment Oil and grease Landscaping activities Fertilizers, Nutrients Natural spray tack adhesive (Erosion Control) Sealants, Solvents 2.4 Sequence and Estimated Dates of Construction Activities Phase I Phase 1 Estimated Start Date of Construction Activities for this Phase 11/1/2025 Estimated End Date of Construction Activities for this Phase 7/1/2026 Estimated Date(s) of Application of Stabilization Measures for Areas of the Site Required to be Stabilized 12/1/2025 Estimated Date(s) when Stormwater Controls will be Removed 7/1/2026 2.5 Authorized Non-Stormwater Discharges List of Authorized Non-Stormwater Discharges Present at the Site Authorized Non-Stormwater Discharge Will or May Occur at Your Site? Discharges from emergency fire-fighting activities ☐ Yes ☒ No Fire hydrant flushings ☐ Yes ☒ No Landscape irrigation ☐ Yes ☒ No Water used to wash vehicles and equipment ☐ Yes ☒ No Water used to control dust ☒ Yes ☐ No Potable water including uncontaminated water line flushings ☐ Yes ☒ No External building washdown (soaps/solvents are not used and external surfaces do not contain hazardous substances) ☐ Yes ☒ No Pavement wash waters ☐ Yes ☒ No Uncontaminated air conditioning or compressor condensate ☐ Yes ☒ No Uncontaminated, non-turbid discharges of ground water or spring water ☐ Yes ☒ No Foundation or footing drains ☐ Yes ☒ No Uncontaminated construction dewatering water ☐ Yes ☒ No Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 7 2.6 Site Maps See Appendix A of this SWPPP for Site Map SECTION 3: DOCUMENTATION OF COMPLIANCE WITH OTHER FEDERAL REQUIREMENTS 3.1 Endangered Species Protection Eligibility Criterion Following the process outlined in Appendix C of the VI CGP, under which criterion are you eligible for coverage under this permit? ☐ Criterion A: No ESA-listed species and/or designated critical habitat present in action area. Using the process outlined in Appendix C of the VI CGP, you certify that ESA-listed species and designated critical habitat(s) under the jurisdiction of the USFWS or NMFS are not likely to occur in your site’s “action area” as defined in Appendix A of the VI CGP. Please Note: NMFS’ jurisdiction includes ESA-listed marine and estuarine species that spawn in inland rivers. ☐ Check to confirm you have provided documentation in your SWPPP as required by VI CGP Appendix C (Note: reliance on State resources is not acceptable; see VI CGP Appendix C). Documentation: Insert Text Here ☐ Criterion B: Eligibility requirements met by another operator under the 2012 VI CGP. The construction site’s discharges and discharge-related activities were already addressed in another operator’s valid certification of eligibility for your “action area” under eligibility Criterion A, C, D, E, or F of the 2012 VI CGP and you have confirmed that no additional ESA-listed species and/or designated critical habitat under the jurisdiction of USFWS and/or NMFS not considered in the that certification may be present or located in the “action area.” To certify your eligibility under this criterion, there must be no lapse of TPDES permit coverage in the other VI CGP operator’s certification. By certifying eligibility under this criterion, you agree to comply with any conditions upon which the other VI CGP operator's certification was based. You must include in your NOI the TPDES ID from the other 2012 VI CGP operator’s notification of authorization under this permit and list any measures that you must comply with. If your certification is based on another 2012 VI CGP operator’s certification under criterion C, you must provide EPA with the relevant supporting information required of existing dischargers in Criterion C. ☐ Check to confirm you have provided documentation in your SWPPP as required by VI CGP Appendix C. Documentation: Insert Text Here Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 8 Eligibility Criterion Following the process outlined in Appendix C of the VI CGP, under which criterion are you eligible for coverage under this permit? ☒ Criterion C: Discharges not likely to result in any short- or long-term adverse effects to ESA-listed species and/or designated critical habitat. ESA-listed species and/or designated critical habitat(s) under the jurisdiction of the USFWS and/or NMFS are likely to occur in or near your site’s “action area,” and you certify to EPA that your site’s discharges and discharge-related activities are not likely to result in any short- or long- term adverse effects to ESA-listed threatened or endangered species and/or designated critical habitat. This certification may include consideration of any stormwater controls and/or management practices you will adopt to ensure that your discharges and discharge-related activities are not likely to result in any short- or long-term adverse effects to ESA-listed species and/or designated critical habitat. To certify your eligibility under this criterion, indicate 1) the ESA-listed species and/or designated habitat located in your “action area” using the process outlined in Appendix C of this permit; 2) the distance between the site and the listed species and/or designated critical habitat in the action area (in miles); and 3) a rationale describing specifically how short- or long-term adverse effects to ESA-listed species will be avoided from the discharges and discharge- related activities. (Note: You must include a copy of your site map from your SWPPP showing the upland and in-water extent of your “action area” with your NOI.) ☐ Check to confirm you have provided documentation in your SWPPP as required by VI CGP Appendix C. Documentation: The Biological Study prepared by Kadison Islands Consulting, LLC concluded that no threatened or endangered species were observed within the development area; however, the site conditions found it falls well within the habitat preference of the federally protected tree boas, but none were observed on-site during the study investigations. Tree boas are largely nocturnal, therefore there is a reasonable chance that hey inhabit the property and particular care should be taken to protect the endangered species including the tree boa if present. A copy of the study is included in this Coastal Zone Management Permit Application. ☐ Criterion D: Coordination with USFWS and/or NMFS has successfully concluded. Coordination between you and the USFWS and/or NMFS has concluded. The coordination must have addressed the effects of your site’s discharges and discharge- related activities on ESA-listed species and/or designated critical habitat under the jurisdiction of USFWS and/or NMFS, and resulted in a written confirmation from USFWS and/or NMFS that the effects of your site’s discharges and discharge-related activities are not likely to result in any short- or long-term adverse effects. By certifying eligibility under this criterion, you agree to comply with any conditions you must meet for your site’s discharges and discharge-related activities to not likely result in any short- or long- term adverse effects. You must include copies of the correspondence with the participating agencies in your SWPPP and this NOI. ☐ Check to confirm you have provided documentation in your SWPPP as required by VI CGP Appendix C. Documentation: Insert Text Here Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 9 Eligibility Criterion Following the process outlined in Appendix C of the VI CGP, under which criterion are you eligible for coverage under this permit? ☐ Criterion E: ESA Section 7 consultation has successfully concluded. Consultation between a Federal agency and the USFWS and/or NMFS under section 7 of the ESA has concluded. Consultations can be either formal or informal, and would have occurred only as a result of a separate Federal action (e.g., during application for an individual wastewater discharge permit or the issuance of a wetlands dredge and fill permit), and the consultation must have addressed the effects of your construction activity’s discharges and discharge-related activities on all ESA-listed threatened or endangered species and all designated critical habitat under the jurisdiction of each Service, as appropriate, in your action area. The result of this consultation must be either: i. A biological opinion currently in effect that determined that the action in question (taking into account the effects of your facility’s discharges and discharge-related activities) is likely to adversely affect, but is not likely to jeopardize the continued existence of listed species or result in the destruction or adverse modification of critical habitat. The biological opinion must have included the effects of your facility’s discharges and discharge-related activities on all the listed species and designated critical habitat in your action area under the jurisdiction of each Service, as appropriate. To be eligible under (i), any reasonable and prudent measures specified in the incidental take statement must be implemented; ii. Written concurrence (e.g., letter of concurrence) from the applicable Service(s) with a determination that your facility’s discharges and discharge-related activities are not likely to adversely affect ESA-listed species and/or designated critical habitat. The concurrence letter must have included the effects of your facility’s discharges and discharge-related activities on all the ESA-listed species and/or designated critical habitat on your species list(s) acquired from USFWS and/or NMFS as part of this worksheet. The consultation does not warrant reinitiation under 50 CFR §402.16; or, if reinitiation of consultation is required (e.g., due to a new species listing, critical habitat designation, or new information), the Federal action agency has reinitiated the consultation and the result of the consultation is consistent with the statements above. (Note: you must include any reinitiation documentation from the Services or consulting Federal agency with your NOI.) - ☐ Check to confirm you have provided documentation in your SWPPP as required by VI CGP Appendix C. Documentation: Insert Text Here Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 10 Eligibility Criterion Following the process outlined in Appendix C of the VI CGP, under which criterion are you eligible for coverage under this permit? ☐ Criterion F: Issuance of section 10 permit. Potential take is authorized through the issuance of a permit under section 10 of the ESA by the USFWS and/or NMFS, and this authorization addresses the effects of the site’s discharges and discharge-related activities on ESA-listed species and designated critical habitat. You must include copies of the correspondence between yourself and the participating agencies in your SWPPP and your NOI. ☐ Check to confirm you have provided documentation in your SWPPP as required by VI CGP Appendix C. Documentation: Insert Text Here 3.2 Historic Property Screening Process Appendix D, Step 1 Do you plan on installing any stormwater controls that require subsurface earth disturbance, including, but not limited to, any of the following stormwater controls at your site? No subsurface earth disturbance of any stormwater controls is proposed for this project. Due to all stormwater runoff discharging into the coast and downstream flooding not being a concern, stormwater retention/detention via an infiltration basin is not proposed. Temporary mulch berms have been installed on-site at the bottom of all downhill slopes for the area that has been partially cleared per an approved Permit Letter Request received in 2023. For the remaining brush and vegetation to be cleared, temporary mulch berms will be installed in a similar way. Permanent rock berms are proposed in locations within the project area that experience concentrated flow to account for any additional runoff rates and erosion. A copy of the Erosion Control Plan and Grading Plan are included in this Coastal Zone Management Permit Application. Appendix D, Step 2 If you answered yes in Step 1, have prior professional cultural resource surveys or other evaluations determined that historic properties do not exist, or have prior disturbances at the site have precluded the existence of historic properties? ☐ YES ☐ NO ▪ If yes, no further documentation is required for Section 3.2 of the Template, and you may provide the prior documentation in your SWPPP. ▪ If no, proceed to Appendix D, Step 3. Appendix D, Step 3 If you answered no in Step 2, have you determined that your installation of subsurface earth- disturbing stormwater controls will have no effect on historic properties? ☐ YES ☐ NO Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 11 ▪ If yes, provide documentation of the basis for your determination. ▪ If no, proceed to Appendix D, Step 4. Appendix D, Steps 4 and 5 If you answered no in Step 3, did the State Historic Preservation Officer (SHPO), Tribal Historic Preservation Office (THPO), or other Tribal representative (whichever applies) respond to you within 15 calendar days to indicate their views as to the likelihood that historic properties are potentially present on your site and may be impacted by the installation of stormwater controls that require subsurface earth disturbance? ☐ YES ☐ NO ▪ If yes, describe the nature of their response: ☐ Written indication that no historic properties will be affected by the installation of stormwater controls. ☐ Written indication that adverse effects to historic properties from the installation of stormwater controls can be mitigated by agreed upon actions. ☐ No agreement has been reached regarding measures to mitigate effects to historic properties from the installation of stormwater controls. ☐ Other: ▪ If no, no further documentation is required for Section 3.2 of the Template. 3.3 Safe Drinking Water Act Underground Injection Control Requirements Do you plan to install any of the following controls? Check all that apply below. No. ☐ Infiltration trenches (if stormwater is directed to any bored, drilled, driven shaft or dug hole that is deeper than its widest surface dimension, or has a subsurface fluid distribution system) ☐ Commercially manufactured pre-cast or pre-built proprietary subsurface detention vaults, chambers, or other devices designed to capture and infiltrate stormwater flow ☐ Drywells, seepage pits, or improved sinkholes (if stormwater is directed to any bored, drilled, driven shaft or dug hole that is deeper than its widest surface dimension, or has a subsurface fluid distribution system) Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 12 SECTION 4: EROSION AND SEDIMENT CONTROLS AND DEWATERING PRACTICES 4.1 Natural Buffers or Equivalent Sediment Controls Buffer Compliance Alternatives Are there any receiving waters within 50 feet of your project’s earth disturbances? ☐ YES ☒ NO 4.2 Perimeter Controls General ▪ The site is currently being cleared based on an approved Permit Letter Request. Excess cleared vegetation can be moved to the bottom of the downhill slopes of the project area and formed into a berm to prevent the runoff from carrying any sediment off-site. Other erosion control methods currently implemented on-site are mulch-in-place and silt fencing where both have proven to be very effective construction means and methods and will continue to be used throughout the duration of construction for the project. Specific Perimeter Controls Mulch Berm Description: Vegetation is being cleared with a low ground pressure skid steer or track excavator with a mulching attachment to remove and grind the trees and vegetation within 2 inches of the existing ground surface. All roots and stumps are being left in place with no soil/earth disturbances. Excess mulch can be formed into a berm at the bottom of the downhill slopes of the proposed work area for erosion control measures. Installation 10/14/2025 Maintenance Requirements Berm should be inspected immediately after each rainfall event and at least daily during prolonged rainfall. Needed repairs to the berm must be made immediately. Remove any debris that comes into contact with berm. 4.3 Sediment Track-Out General ▪ Temporary construction access/exit was installed in the western part of the site to prevent track-out of sediment from the site while the approved clearing is being performed and shall remain in place until construction is completed. Specific Track-Out Controls Stabilized Construction Exit Description: 50’ long and 20’ wide, 6” minimum depth gravel construction entrance. 2”-3” diameter crushed stone minimum placed over a geotextile fabric. Installation 10/14/2025 Maintenance Requirements Add gravel when necessary to maintain effective construction entrance throughout project construction. Design Specifications Details provided Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 13 4.4 Stockpiles or Land Clearing Debris Piles Comprised of Sediment or Soil The construction may include small amounts of excavation of areas needing cut ins/steps within the steep slopes on-site for installation of the racking system, but no stockpiles of sediment are anticipated during construction of the project. 4.5 Minimize Dust General ▪ The Contractor is responsible for sweeping their own travel ways and the area located within 100 feet of the entrances and exits of the construction work zone. Sweeping will be conducted as needed to prevent the tracking of sediment/dust on the public roadway. Specific Dust Controls Water Truck Description: ▪ During construction, the smallest practical portion of the project area will be disturbed at one time to minimize the potential for dust generation. ▪ A water truck will be used to wet exposed areas within the work limits as needed for dust suppression. ▪ As with the tact-out controls discussed above, sediments on the paved areas outside of the work limits will be removed by sweeping to suppress dust generated by vehicle traffic. Installation 10/14/2025 Maintenance Requirements Wet exposed areas within the work limits as needed for dust suppression. Design Specifications Refer to project specifications. 4.6 Minimize Steep Slope Disturbances General ▪ Certain embankments and shoulders where work will be performed may feature steep slopes where cut ins and/or steps may need to be constructed for the installation of the proposed project on an as needed basis. Areas that require cut ins and/or steps shall be regularly inspected and protected from erosion with BMPs and Erosion Control Methods such as natural spray tack adhesive and additional silt fencing, as needed, before it results in sediment discharges/releases. Permanent stabilization will be provided by loaming and seeding slopes with grass in areas that appear bare after construction. Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 14 Specific Steep Slope Controls Slope Stabilization Description: Steep slopes work will be performed as work encounters them. Installation 11/1/2025 Maintenance Requirements Contractor shall maintain erosion controls in a functional condition at all times, including inspections once every seven (7) calendar days and within 24 hours of the occurrence of a storm event that produces 0.25 inches or more of rain within a 24-hour period. All damaged areas shall be replaced immediately. Design Specifications Refer to project specifications. 4.7 Topsoil General ▪ Native topsoil shall be preserved unless infeasible. Preserving native topsoil is not required where the intended function of a specific area of the site calls for topsoil to be disturbed or removed. If suitable topsoil is found in disturbed areas, it will be removed and stockpiled and temporarily seeded until ready to use. ▪ Vegetation will be cleared and mulched to be spread over topsoil. This mulch will prevent erosion of the topsoil during construction activities. 4.8 Soil Compaction General ▪ Vehicle and equipment use shall be avoided in areas where seeding and vegetative stabilization will occur to avoid compaction of soil. Prior to seeding in areas of disturbed soils, the contractor shall condition the soil as necessary to support vegetative growth. 4.9 Storm Drain Inlets Not required for this project. 4.10 Constructed Site Drainage Feature Not required for this project. 4.11 Sediment Basins or Similar Impoundments Not required for this project. 4.12 Chemical Treatment No chemical treatment is anticipated. 4.13 Dewatering Practices No dewatering is anticipated for this project. Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 15 4.14 Other Stormwater Controls None used. 4.15 Site Stabilization Total Amount of Land Disturbance Occurring at Any One Time ☐ Five Acres or less ☒ More than Five Acres Seeding ☒ Vegetative ☐ Non-Vegetative ☐ Temporary ☒ Permanent Description: ▪ Contractor shall implement and maintain stabilization measures that minimize erosion from any areas of exposed soil on the site. Disturbed soils will be seeded with a seed mix that matches existing grasses. Installation Refer to project schedule Completion Refer to project schedule Maintenance Requirements • Any grassed areas disturbed by the work shall be restored with loam and seed. • Contractor shall reseed and if necessary maintain until grass has grown. • Landscaped areas disturbed by work shall be restored to existing conditions. Design Specifications Refer to project specifications for seeding requirements. Mulching ☐ Vegetative ☒ Non-Vegetative ☒ Temporary ☐ Permanent Description: ▪ Contractor shall mulch cleared vegetation and spread over disturbed areas to provide protection from erosion Installation Refer to project schedule Completion Refer to project schedule Maintenance Requirements • Mulch shall be reapplied in areas where mulch has been removed or no longer provides adequate protection during construction. Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 16 SECTION 5: POLLUTION PREVENTION CONTROLS 5.1 Potential Sources of Pollution Construction Site Pollutants Potential sources of sediment come from: Clearing and grubbing activities, any site grading or excavation, vehicle tracking, topsoil stripping and stockpiling, and landscaping activities. Potential pollutants and sources come from sanitary facilities, heavy equipment and vehicles, and materials storage areas. Pollutant-Generating Activity Pollutants or Pollutant Constituents (That could be discharged if exposed to stormwater) Location on Site (Or reference SWPPP site map where this is shown) Organic Fertilizer Nitrogen and phosphates Open seeded areas for final stabilization Concrete Limestone, sand, pH, chromium Equipment pads, fence posts Hydraulic Oil/Fluids Mineral oil, petroleum distallates Leaks or broken equipment Gasoline Benzene, ethyl benzene, toluene, xylene, MTBE Staging areas Diesel Fuel Petroleum distillate, oil and grease, naphthalene, xylenes Staging areas Antifreeze/coolant Ethylene glycol, propylene glycol, heavy metals (copper, lead, zinc) Leaks or broken equipment hoses Temporary Sanitary Facilities Bacteria, parasites, viruses, funguses Staging areas Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 17 5.2 Spill Prevention and Response In the event of a spill an on-site spill kit shall be available to contain and remove the spill. In the event the spill cannot be contained and removed with the on-site spill kit, immediately notify emergency personnel. 5.3 Fueling and Maintenance of Equipment or Vehicles General ▪ A variety of vehicles and equipment will be used on-site. Care shall be taken to eliminate discharge of any spilled or leaked chemicals, including fuel, from the project area. All fueling will be performed off-site. When fueling must occur on-site, the area shall be protected by secondary containment. Specific Pollution Prevention Practices Daily Inspection Description: All vehicles shall be inspected prior to use daily for leaks, damage, and other problems and brought up to the site superintendent. Leaks shall be repaired immediately, or the equipment shall be removed from the site. Implementation Inspections are daily starting during mobilization until the end of the project. Maintenance Requirements Daily inspections will occur prior to work. 5.4 Washing of Equipment and Vehicles General ▪ Equipment will generally be washed off location. When done on site, it shall be done in a contained area without detergents. 5.5 Storage, Handling, and Disposal of Building Products, Materials, and Wastes 5.5.1 Building Materials and Building Products General ▪ Building materials will be stockpiled in a designated staging area when kept on site. 5.5.2 Pesticides, Herbicides, Insecticides, Fertilizers, and Landscape Materials No pesticides, herbicides, or insecticides are anticipated to be used. Landscape materials will be stored at a combined staging area and materials storage area. Storage in Containers in Materials Storage Area Description: Secure containers to contain materials in the staging area. Implementation 11/1/2025 Maintenance Requirements Inspections must be performed once every seven (7) calendar days and within 24 hours of the occurrence of a storm event that produces 0.25 inches or more of rain within a 24-hour period. Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 18 5.5.3 Diesel Fuel, Oil, Hydraulic Fluids, Other Petroleum Products, and Other Chemicals No diesel fuel, oil, hydraulic fluids, or other petroleum products or other chemicals are anticipated to be stored on site. 5.5.4 Hazardous or Toxic Waste General ▪ Diesel fuel, oil, hydraulic fluids, other petroleum products, and other chemicals will be limited in scope of use and preferably stored off-Site; if they must be stored on site, they will be stored at a combined staging area and materials storage area within a secure and covered area. In the event of any spills, the spill must be reported to the appropriate authorities and the engineer. 5.5.5 Construction and Domestic Waste General ▪ Waste will be stored in appropriate waste containers in the staging area until disposed of. All waste shall be disposed of properly by the contractor in accordance with all local, state, and federal regulations. No waste shall be buried or dumped on the project site. 5.5.6 Sanitary Waste General ▪ Portable toilets may be provided at the site throughout the construction phase. Toilets will be secure to not be tipped or knocked over. Waste will be collected from the portable facilities as needed to keep sanitary conditions. Toilets will be inspected regularly for evidence of leaking holding tanks. Toilets with leaking holding tanks will be removed and replaced with new toilets. 5.6 Washing of Applicators and Containers used for Stucco, Paint, Concrete, Form Release Oils, Cutting Compounds, or Other Materials Not to be performed on site during construction. 5.7 Application of Fertilizers General ▪ Commercial fertilizer shall be a product complying with the local and United States fertilizer laws. Fertilizer for planting shall be formulated for top-dressing, soil surface application to plants. Fertilizer shall be designed and certified by the manufacturer to provide controlled release of fertilizer continuously for not less than 9 months. One hundred percent of the nitrogen content shall be derived from organic materials. Nitrogen source shall be coated to ensure slow release. Fertilizer will not be kept on-site and only small volumes will be brought for use. 5.8 Other Pollution Prevention Practices No other pollution prevention practices are anticipated. Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 19 SECTION 6: INSPECTION, MAINTENANCE, AND CORRECTIVE ACTION 6.1 Inspection Personnel and Procedures Site Inspection Schedule Standard Frequency: ☒ Every 7 calendar days ☐ Every 14 calendar days and within 24 hours of either: ▪ A storm event that produces 0.25 inches or more of rain within a 24-hour period (including when there are multiple, smaller storms that alone produce less than 0.25 inches but together produce 0.25 inches or more in 24 hours), or ▪ A storm event that produces 0.25 inches or more of rain within a 24-hour period on the first day of a storm and continues to produce 0.25 inches or more of rain on subsequent days (you conduct an inspection within 24 hours of the first day of the storm and within 24 hours after the last day of the storm that produces 0.25 inches or more of rain (i.e., only two inspections would be required for such a storm event)), or ▪ A discharge caused by snowmelt from a storm event that produces 3.25 inches or more of snow within a 24-hour period. Increased Frequency (if applicable): For areas of sites discharging to sediment or nutrient-impaired waters or to waters designated as Tier 2, Tier 2.5, or Tier 3 ☐ Every 7 days and within 24 hours of either: ▪ A storm event that produces 0.25 inches or more of rain within a 24-hour period, or ▪ A discharge caused by snowmelt from a storm event that produces 3.25 inches or more of snow within a 24-hour period. Reduced Frequency (if applicable) For stabilized areas ☐ Twice during first month, no more than 14 calendar days apart; then once per month after first month until permit coverage is terminated consistent with Part 8 in any area of your site where the stabilization steps in 2.2.1.2a and 2.2.1.2b have been completed. For stabilized areas on “linear construction sites” (as defined in Appendix A) ☐ Twice during first month, no more than 14 calendar days apart; then once more within 24 hours of a storm event that produces 0.25 inches or more of rain within a 24-hour period, or within 24 hours of a snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 20 For arid, semi-arid, or drought-stricken areas during seasonally dry periods or during drought ☐ Once per month and within 24 hours of either: ▪ A storm event that produces 0.25 inches or more of rain within a 24-hour period, or ▪ A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period. Insert beginning and ending month identified as the seasonally dry period for your area or the valid period of drought: ▪ Beginning month of the seasonally dry period: 1/1/2025 ▪ Ending month of the seasonally dry period: 4/30/2025 For frozen conditions where construction activities are being conducted ☐ Once per month Insert beginning and ending dates of frozen conditions on your site: ▪ Beginning date of frozen conditions: Insert approximate date ▪ Ending date of frozen conditions: Insert approximate date For frozen conditions where construction activities are suspended ☐ Inspections are temporarily suspended Insert beginning and ending dates of frozen conditions on your site: ▪ Beginning date of frozen conditions: Insert approximate date ▪ Ending date of frozen conditions: Insert approximate date Dewatering Inspection Schedule Dewatering Inspection ☐ Once per day on which the discharge of dewatering water occurs. Rain Gauge Location (if applicable) https://forecast.weather.gov/MapClick.php?lat=17.7123&lon=-64.8436 Inspection Report Forms See Appendix D of this SWPPP for Site Inspection Report Form 6.2 Corrective Action Personnel Responsible for Corrective Actions Christian Loranger 508-965-8637 nbdsolar@gmail.com Corrective Action Logs See Appendix E of this SWPPP for Corrective Action Logs Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 21 6.3 Delegation of Authority Duly Authorized Representative(s) or Position(s): Quantum Solar, LLC Subsidiary of VIelectron, LLC Christian Loranger Owner 5000 Est. Enighed, Ste 4a PMB 146 St. John, U.S.V.I 00830 Phone: 508-965-8637 nbdsolar@gmail.com VIELECTRON, LLC Christian Loranger Operator 5000 Est. Enighed, Ste 4a PMB 146 St. John, U.S.V.I 00830 Phone: 508-965-8637 nbdsolar@gmail.com Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 22 SECTION 7: TURBIDITY BENCHMARK MONITORING FOR DEWATERING DISCHARGES Not anticipated for this project SECTION 8: CERTIFICATION AND NOTIFICATION I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Name: Christian Loranger Title: Owner / Developer / Operator Signature: Date: Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni 23 SWPPP APPENDICES Attach the following documentation to the SWPPP: Appendix A – Site Maps Appendix B – Copy of 2012 VI CGP Appendix C – NOI and EPA Authorization Email Appendix D – Site Inspection Form and Dewatering Inspection Form (if applicable) Appendix E – Corrective Action Log Appendix F – SWPPP Amendment Log Appendix G – Subcontractor Certifications/Agreements Appendix H – Grading and Stabilization Activities Log Appendix I – Training Documentation Appendix J – Delegation of Authority Appendix K – Endangered Species Documentation Appendix L – Historic Preservation Documentation Appendix M – Rainfall Gauge Recording Appendix N – Turbidity Meter Manual and Manufacturer’s Instructions Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix A – Site Maps LEGEND C3 SITE PREP / EROSION CONTROL PLAN 3 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 QUANTUM SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 FOR PERMITTING PURPOSES ONLY SUMMARY OF PROPOSED ACTIVITY: CONSTRUCTION SEQUENCE: CONSTRUCTION GENERAL PERMIT NOTES: EROSION CONTROL NOTES: LEGEND C5 GRADING & DRAINAGE PLAN 5 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 QUANTUM SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 FOR PERMITTING PURPOSES ONLY GRADING NOTES EROSION CONTROL NOTES: Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix B – Copy of 2012 VI CGP Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix C – Copy of NOI and EPA Authorization Email Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix D – Copy of Site and Dewatering Inspection Forms 2022 Construction General Permit Site Inspection Report Project Name: Proposed Solar Energy Facility with Battery Storage - Bovoni TPDES ID Number:_____________________________________________ Section A – General Information (If necessary, complete additional inspection reports for each separate inspection location.) Inspector Information Inspector Name: Title: Company Name: Email: Address: Phone Number: Inspection Details Inspection Date: Inspection Location: Inspection Start Time: Inspection End Time: Current Phase of Construction: Weather Conditions During Inspection: Did you determine that any portion of your site was unsafe for inspection per CGP Part 4.5? ☐ Yes ☐ No If “Yes,” provide the following information: Location of unsafe conditions: The conditions that prevented you inspecting this location: Indicate the required inspection frequency: (Check all that apply. You may be subject to different inspection frequencies in different areas of the site.) Standard Frequency (CGP Part 4.2): ☐ At least once every 7 calendar days; OR ☐ Once every 14 calendar days and within 24 hours of the occurrence of either: • A storm event that produces 0.25 inches or more of rain within a 24-hour period, or • A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period Increased Frequency (CGP Part 4.3.1) (If site discharges to sediment or nutrient-impaired waters or to waters designated as Tier 2, Tier 2.5, or Tier 3): ☐ Once every 7 calendar days and within 24 hours of the occurrence of either: • A storm event that produces 0.25 inches or more of rain within a 24-hour period, or • A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period 2022 Construction General Permit Site Inspection Report Project Name: Proposed Solar Energy Facility with Battery Storage - Bovoni TPDES ID Number:_____________________________________________ Reduced Frequency (CGP Part 4.4): ☐ For stabilized areas: Twice during first month, no more than 14 calendar days apart; then once per month after first month until permit coverage is terminated ☐ For stabilized areas on “linear construction sites”: Twice during first month, no more than 14 calendar days apart; then once more within 24 hours of the occurrence of either: • A storm event that produces 0.25 inches or more of rain within a 24-hour period, or • A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period ☐ For arid, semi-arid, or drought-stricken areas during seasonally dry periods or during drought: Once per month and within 24 hours of the occurrence of either: • A storm event that produces 0.25 inches or more of rain within a 24-hour period, or • A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period ☐ For frozen conditions where construction activities are being conducted: Once per month Was this inspection triggered by a storm event producing 0.25 inches or more of rain within a 24-hour period? ☐ Yes ☐ No If “Yes,” how did you determine whether the storm produced 0.25 inches or more of rain? ☐ On-site rain gauge ☐ Weather station representative of site. Weather station location: Total rainfall amount that triggered the inspection (inches): Was this inspection triggered by a snowmelt discharge from a storm event producing 3.25 inches or more of snow within a 24-hour period? ☐ Yes ☐ No If “Yes,” how did you determine whether the storm produced 3.25 inches or more of snow? ☐ On-site rain gauge ☐ Weather station representative of site. Weather station location: Total snowfall amount that triggered the inspection (inches): 2022 Construction General Permit Site Inspection Report Project Name: Proposed Solar Energy Facility with Battery Storage - Bovoni TPDES ID Number:_____________________________________________ Section B – Condition and Effectiveness of Erosion and Sediment (E&S) Controls (CGP Part 2.2) (Insert additional rows if needed) Type and Location of E&S Control Conditions Requiring Routine Maintenance?1 If “Yes,” How Many Times (Including This Occurrence) Has This Condition Been Identified? Conditions Requiring Corrective Action?2, 3 Date on Which Condition First Observed (If Applicable)? Description of Conditions Observed 1. ☐ Yes ☐ No ☐ Yes ☐ No 2. ☐ Yes ☐ No ☐ Yes ☐ No 3. ☐ Yes ☐ No ☐ Yes ☐ No 4. ☐ Yes ☐ No ☐ Yes ☐ No 5. ☐ Yes ☐ No ☐ Yes ☐ No If the same routine maintenance was found to be necessary three or more times for the same control at the same location (including this occurrence), follow the corrective action requirements and record the required information in your corrective action log, or describe here why you believe the specific condition should still be addressed as routine maintenance: 1 Routine maintenance includes minor repairs or other upkeep performed to ensure that the site’s stormwater controls remain in effective operating condition, not including significant repairs or the need to install a new or replacement control. Routine maintenance is also required for specific conditions: (1) for perimeter controls, whenever sediment has accumulated to half or more the above-ground height of the control (CGP Part 2.2.3.c.i); (2) where sediment has been tracked-out from the site onto paved roads, sidewalks, or other paved areas (CGP Part 2.2.4.d); (3) for inlet protection measures, when sediment accumulates, the filter becomes clogged, and/or performance is compromised (CGP Part 2.2.10.b); and (4) for sediment basins, as necessary to maintain at least half of the design capacity of the basin (CGP Part 2.2.12.f) 2 Corrective actions are triggered only for specific conditions (CGP Part 5.1): 1. A stormwater control needs a significant repair or a new or replacement control is needed, or, in accordance with Part 2.1.4.c, you find it necessary to repeatedly (i.e., three (3) or more times) conduct the same routine maintenance fix to the same control at the same location (unless you document in your inspection report under Part 4.7.1.c that the specific reoccurrence of this same problem should still be addressed as a routine maintenance fix under 2.1.4); or 2. A stormwater control necessary to comply with the requirements of this permit was never installed, or was installed incorrectly; or 3. Your discharges are not meeting applicable water quality standards; or 4. A prohibited discharge has occurred (see CGP Part 1.3); or 5. During the discharge from site dewatering activities: a. The weekly average of your turbidity monitoring results exceeds the 50 NTU benchmark (or alternate benchmark if approved by EPA pursuant to Part 3.3.2.b); or b. You observe or you are informed by EPA, State, or local authorities of the presence of the conditions specified in Part 4.6.3.e. 3 If a condition on your site requires a corrective action, you must also fill out a corrective action log found at https://www.epa.gov/npdes/construction-general-permit- resources-tools-and-templates. See CGP Part 5.4 for more information. 2022 Construction General Permit Site Inspection Report Project Name: Proposed Solar Energy Facility with Battery Storage - Bovoni TPDES ID Number:_____________________________________________ Section C – Condition and Effectiveness of Pollution Prevention (P2) Practices and Controls (CGP Part 2.3) (Insert additional rows if needed) Type and Location of P2 Practices and Controls Conditions Requiring Routine Maintenance?1 If “Yes,” How Many Times (Including This Occurrence) Has This Condition Been Identified? Conditions Requiring Corrective Action?2, 3 Date on Which Condition First Observed (If Applicable)? Description of Conditions Observed 1. ☐ Yes ☐ No ☐ Yes ☐ No 2. ☐ Yes ☐ No ☐ Yes ☐ No 3. ☐ Yes ☐ No ☐ Yes ☐ No 4. ☐ Yes ☐ No ☐ Yes ☐ No 5. ☐ Yes ☐ No ☐ Yes ☐ No If the same routine maintenance was found to be necessary three or more times for the same control at the same location (including this occurrence), follow the corrective action requirements and record the required information in your corrective action log, or describe here why you believe the specific condition should still be addressed as routine maintenance: 2022 Construction General Permit Site Inspection Report Project Name: Proposed Solar Energy Facility with Battery Storage - Bovoni TPDES ID Number:_____________________________________________ Section D – Stabilization of Exposed Soil (CGP Part 2.2.14) (Insert additional rows if needed) Specific Location That Has Been or Will Be Stabilized Stabilization Method and Applicable Deadline Stabilization Initiated? Final Stabilization Criteria Met? Final Stabilization Photos Taken? Notes 1. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 2. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 3. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 4. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 5. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 2022 Construction General Permit Site Inspection Report Project Name: Proposed Solar Energy Facility with Battery Storage - Bovoni TPDES ID Number:_____________________________________________ 4 If a dewatering discharge was occurring, you must conduct a dewatering inspection pursuant to CGP Part 4.3.2 and complete a separate dewatering inspection report. Section E – Description of Discharges (CGP Part 4.6.2) (Insert additional rows if needed) Was a discharge (not including dewatering) occurring from any part of your site at the time of the inspection?4 ☐ Yes ☐ No If “Yes,” for each point of discharge, document the following: • The visual quality of the discharge. • The characteristics of the discharge, including color; odor; floating, settled, or suspended solids; foam; oil sheen; and other indicators of stormwater pollutants. • Signs of the above pollutant characteristics that are visible from your site and attributable to your discharge in receiving waters or in other constructed or natural site drainage features. Discharge Location Observations 1. 2. 3. 4. 5. 2022 Construction General Permit Site Inspection Report Project Name: Proposed Solar Energy Facility with Battery Storage - Bovoni TPDES ID Number:_____________________________________________ Section F – Signature and Certification (CGP Part 4.7.2) “I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information contained therein. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information contained is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.” MANDATORY: Signature of Operator or “Duly Authorized Representative:” Signature: Date: Printed Name: Affiliation: OPTIONAL: Signature of Contractor or Subcontractor Signature: Date: Printed Name: Affiliation: Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix E – Copy of Corrective Action Log 2022 CGP Corrective Action Log Project Name: Proposed Solar Energy Facility with Battery Storage - Bovoni TPDES ID Number: __________________________________________ Section A – Individual Completing this Log Name: Title: Company Name: Email: Address: Phone Number: Section B – Details of the Problem (CGP Part 5.4.1.a) Complete this section within 24 hours of discovering the condition that triggered corrective action. Date problem was first identified: Time problem was first identified: What site conditions triggered this corrective action? (Check the box that applies. See instructions for a description of each triggering condition (1 thru 6).) ☐ 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5a ☐ 5b ☐ 6 Specific location where problem identified: Provide a description of the specific condition that triggered the need for corrective action and the cause (if identifiable): Section C – Corrective Action Completion (CGP Part 5.4.1.b) Complete this section within 24 hours after completing the corrective action. For site condition # 1, 2, 3, 4, or 6 (those not related to a dewatering discharge) confirm that you met the following deadlines (CGP Part 5.2.1): ☐ Immediately took all reasonable steps to address the condition, including cleaning up any contaminated surfaces so the material will not discharge in subsequent storm events. AND ☐ Completed corrective action by the close of the next business day, unless a new or replacement control, or significant repair, was required. OR ☐ Completed corrective action within seven (7) calendar days from the time of discovery because a new or replacement control, or significant repair, was necessary to complete the installation of the new or modified control or complete the repair. OR ☐ It was infeasible to complete the installation or repair within 7 calendar days from the time of discovery. Provide the following additional information: Explain why 7 calendar days was infeasible to complete the installation or repair: Provide your schedule for installing the stormwater control and making it operational as soon as feasible after the 7 calendar days: For site condition # 5a, 5b, or 6 (those related to a dewatering discharge), confirm that you met the following deadlines: ☐ Immediately took all reasonable steps to minimize or prevent the discharge of pollutants until a solution could be implemented, including shutting off the dewatering discharge as soon as possible depending on the severity of the condition taking safety considerations into account. ☐ Determined whether the dewatering controls were operating effectively and whether they were causing the conditions. ☐ Made any necessary adjustments, repairs, or replacements to the dewatering controls to lower the turbidity levels below the benchmark or remove the visible plume or sheen. Describe any modification(s) made as part of corrective action: (Insert additional rows below if applicable) Date of completion: SWPPP update necessary? If yes, date SWPPP was updated: 1. ☐ Yes ☐ No 2. ☐ Yes ☐ No Section D - Signature and Certification (CGP Part 5.4.2) “I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information contained therein. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information contained is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.” MANDATORY: Signature of Operator or “Duly Authorized Representative:” Signature: Date: Printed Name: Affiliation: OPTIONAL: Signature of Contractor or Subcontractor Signature: Date: Printed Name: Affiliation: Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix F –SWPPP Amendment Log No. Description of the Amendment Date of Amendment Amendment Prepared by [Name(s) and Title] Appendix G –Subcontractor Certifications/Agreements SUBCONTRACTOR CERTIFICATION STORMWATER POLLUTION PREVENTION PLAN Project Number: Project Title: Operator(s): As a subcontractor, you are required to comply with the Stormwater Pollution Prevention Plan (SWPPP) for any work that you perform on-site. Any person or group who violates any condition of the SWPPP may be subject to substantial penalties or loss of contract. You are encouraged to advise each of your employees working on this project of the requirements of the SWPPP. A copy of the SWPPP is available for your review at the office trailer. Each subcontractor engaged in activities at the construction site that could impact stormwater must be identified and sign the following certification statement: Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni I certify under the penalty of law that I have read and understand the terms and conditions of the SWPPP for the above designated project and agree to follow the practices described in the SWPPP. This certification is hereby signed in reference to the above named project: Company: Address: Telephone Number: Type of construction service to be provided: Signature: Title: Date: Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix H – Grading and Stabilization Activities Log Date Grading Activity Initiated Description of Grading Activity Description of Stabilization Measure and Location Date Grading Activity Ceased (Indicate Temporary or Permanent) Date When Stabilization Measures Initiated Date: ☐ Temporary ☐ Permanent Date: ☐ Temporary ☐ Permanent Date: ☐ Temporary ☐ Permanent Date: ☐ Temporary ☐ Permanent Date: ☐ Temporary ☐ Permanent Date: ☐ Temporary ☐ Permanent Date: ☐ Temporary ☐ Permanent Date: ☐ Temporary ☐ Permanent Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix I –Training Documentation Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix J – Delegation of Authority Form Delegation of Authority I, _______________________ (name), hereby designate the person or specifically described position below to be a duly authorized representative for the purpose of overseeing compliance with environmental requirements, including the EPA’s Construction General Permit (CGP), at the ____________________________________ construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. ________________________________________ (name of person or position) ________________________________________ (company) ________________________________________ (address) ________________________________________ (city, State, zip) ________________________________________ (phone) By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in Appendix G of EPA’s CGP, and that the designee above meets the definition of a “duly authorized representative” as set forth in Appendix G. I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Name: Company: Title: Signature: Date: Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix K – Endangered Species Documentation A copy of the Biological Study is included in this Coastal Zone Management Permit Application. Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix L – Historic Properties Documentation No cultural resources were identified on-site. A copy of the Phase 1 (A&B) Archaeological Survey is included in this Coastal Zone Management Permit Application. Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix M – Rainfall Gauge Recording Use the table below to record the rainfall gauge readings at the beginning and end of each work day. An example table follows. Month/Year Month/Year Month/Year Day Start time End time Day Start time End time Day Start time End time 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 10 10 10 11 11 11 12 12 12 13 13 13 14 14 14 15 15 15 16 16 16 17 17 17 18 18 18 19 19 19 20 20 20 21 21 21 22 22 22 23 23 23 24 24 24 25 25 25 26 26 26 27 27 27 28 28 28 29 29 29 30 30 30 31 31 31 Stormwater Pollution Prevention Plan (SWPPP) Proposed Solar Energy Facility with Battery Storage – Bovoni Appendix N – Turbidity Monitoring Sampling Documentation Not anticipated for this project Attachment D – Biological Study A BIOLOGICAL SURVEY BOVONI 17 REMAINDER ESTATE BOVONI, ST. THOMAS USVI Prepared For By Kadison Islands Consulting, LLC P.O. Box 305124 St. Thomas, U.S. Virgin Islands 00803 20 February 2024 & 2 A BIOLOGICAL SURVEY BOVONI 17 REMAINDER ESTATE BOVONI, ST. THOMAS USVI TABLE OF CONTENTS Page INTRODUCTION AND METHODS 4 RESULTS AND DISCUSSION 7 SIGNIFICANCE OF RESULTS and RECOMMENDATIONS3 35 TABLES Table 1. A list of plant species observed during floral surveys from January 23 to February 11, 2024 at the proposed solar field development at Bovoni 17 Remainder, St. Thomas USVI. 18 Table 2. A list of animal species observed during surveys from January 23 to February 11, 2024 at the proposed solar field development at Bovoni 17 Remainder, St. Thomas USVI. 20 Table 3. Marine algae observed during a three hour survey in Stalley Bay on February 4, 2024. 29 Table 4. Stony corals observed during a three hour survey in Stalley Bay on February 4, 2024. 30 Table 5. Marine macro-invertebrates observed during a three hour survey in Stalley Bay on February 4, 2024. 30 Table 6. Fish observed during a three hour survey in Stalley Bay on February 4, 2024. 31 FIGURES Figure 1. Location map with project location shown. 5 Figure 2. Map showing the location of the project site (yellow border) in relation to the Bovoni Landfill and Mangrove Lagoon Wastewater Treatment Plant. 5 Figure 3. The ecological survey area at 17 Remainder, Estate Bovoni. A survey was conducted across the site and seaward of the property approximately 100 m. 6 Figure 4. Survey routes and listening/viewing stations established during the study. 6 Figure 5. Animals encountered on the Bovoni 17 Remaining property. 20 3 Figure 6. Insects encounted durinthe survey on the Bovoni 17 Remaining property. 21 Figure 7. The rocky coastline along the proposed development site is covered in terrigenous rocks of various sizes, worn pebbles, and sparse areas of sand. 22 Figure 8. The underwater benthos is covered in terrigenous rocks and boulders, with occasional patches of course, light sand. 24 Figure 9. Emergent and barely submerged rocks and boulders define the outer edges of the small bays surveyed. 24 Figure 10. A variety of macro-algae cover the rocks and boulders. The brown algae Sargassum spp., Turbinaria turbinata and Dictyota spp. grow in thick mats over much of the site. 25 Figures 11. Herbaceous fishes like blue tang (Acanthurus coeruleus) and ocean surgeonfish (A. bahianus) grazed the algae covered rocks and boulders. 25 Figure 12. Rock boring sea urchins (Echinometra lucunter), West Indian top shell (Cittarium pica) and West Indian sea eggs (Tripneustes ventricosus) grazed on the turf and calcareous algae growing on the rocks and boulders. 25 Figure 13. Fire coral (Milipora spp.) and small oportunistic stony corals like finger coral (Porites porites) and mustard hill coral (P. asteroides) colonized the site. 26 Figute 14. A small grass bed offshore of the survey area supported small fish and larger predatory jacks (Caranx ruber). 26 Figure 15. Elkhorn (Acropora palmata) and fused staghorn (A. prolifera) corals were found on the rocky outcroppings at both the east and west side of the survey area. 27 Figure 16. Areas of elkhorn coral (A. palmata) colonization. Stars represent where 5 or more cononies were found. 27 Figure 17. A variety of macro-invertebrates were found in Stalley Bay. Commercially important species included the Caribbean spiney lobster (Panularus argus) and West Indian top shell (Cittarium pica). 32 Figure 18. A wide variety of fishes were found in Stalley bay off the proposed development site. 33 4 A BIOLOGICAL SURVEY BOVONI 17 REMAINDER ESTATE BOVONI, ST. THOMAS USVI INTRODUCTION AND METHODS: The proposed development of a solar field, on property at Bovoni 17 Remainder, initiated a biological study of the site that included a flora and fauna survey as well as a marine benthic survey in Stalley Bay, adjacent to the proposed property. The property for the proposed development is located on the eastern end of the island of St. Thomas in the United States Virgin Islands (USVI) along the southern shoreline. It lies south-southeast of the Bovoni landfill and southwest of the Mangrove Lagoon Wastewater Treatment Plant (Figures 1 and 2). The site is approximately 2.3 miles west of the city of Red Hook, 4 miles east of Charlotte Amalie, 6.4 miles east of Cyril E. King Airport and 4.8 miles south of Magens Bay. It is part of the Frenchman’s watershed and gets most of its water from upland sheet runoff. The area is hilly and dry, with thin clay and bedrock that is exposed along the shore and ridgeline. Between January 23 and February 10, 2024, a flora and fauna survey was conducted on the proposed site within the property boundaries. The survey was conducted on foot by two biologists, traversing the property on trails created by earth moving equipment from west to east along the approximate axis of the property. In addition, biologists bushwhacked and hiked along the southern coastline where trails had not been created, to capture primarily the coastal plant community. The surveyed routes were recording using an iPhone GPS in a hiking web application (https://www.gaiagps.com), and with a Garmin GPSMAP 79s (Figure 4). Three stations were chosen at which biologists sat quietly for 15-20 minutes to observe wildlife and listen for bird calls (Figure 4). Merlin, a Cornell University Ornithology Lab web application created to identify bird songs (https://merlin.allaboutbirds.org) was used throughout the terrestrial survey. Approximately eighteen hours were spent surveying the site, which covered approximately 30 acres. On February 3, 2024, a marine benthic survey was conducted in and around Stalley Bay, south- southwest of the Bovoni proposed solar farm site. Biologists on snorkel gear swam the property shoreline out to approximately 100 m from land (Figure 3). This included an area of about 11,000 m2. The benthic substrate was recorded and photographed, as were ecological marine communities. Endangered species or those of special concern were noted, mapped, and photographed. The general terrestrial habitats were characterized and photographed and lists of plant species and vertebrate animals observed or detected were compiled. The marine habitat directly seaward of the 5 proposed development site was also characterized and photographed, with lists of plants, corals, macro- invertebrates and fish species compiled. A summary of survey findings and recommendations for sound ecologically conservative development is provided. Figure 1. Location map with project location shown. Figure 2. Map showing the location of the project site (yellow border) in relation to the Bovoni Landfill and Mangrove Lagoon Wastewater Treatment Plant. 6 Figure 3. The ecological survey area at 17 Remainder, Estate Bovoni. A survey was conducted across the site and seaward of the property approximately 100 m. Figure 4. Survey routes and listening/viewing stations established during the study. 7 RESULTS AND DISCUSSION: FLORA AND FAUNA SURVEY The terrestrial habitats surveyed on the Bovoni 17 Remainder property included highly disturbed roadside vegetation, secondary dry scrubland, lowland dry forest and coastal thornbush. These habitat types occur on rapidly drained soils and on sites formally used for agriculture and/or grazing. Floristic diversity tends to be low in all of these habitat types, with generally low stature, a high density small trees, and a poorly developed herb layer. This is due to frequent drought conditions due to rapid runoff, low water storage in shallow soils, and high sunlight. Although there were general differences between habitat types, there was also considerable mixing of flora, and a very vague habitat delineation across the property. Below are the four vegetation groups with a general location on property for each and characteristic species shown. Roadside Vegetation The road running along the northwest side of the property divides it from the Bovoni landfill. The area is filled with a considerable amount of garbage and refuse, and the fenced shoulder is lined with opportunistic, sun and draught tolerant plants, primarily non-native species. Very fast growing exotic and invasive grasses, vines and small scrubs cover this zone. Catch and keep (Acacia retusa), Indian rubber vine (Crypotostegia grandiflora) and tan tan (Leucaena leacocephala) are dominant. Below are images of the vegetation found along the periphery of the Bovoni property. 8 Belly-ache bush snake weed catch and keep Jatopha gossypiifolia Stachytarpheta jamaicensis Acacia retusa goatbush Indian rubber vine Egyptian sesban Castela erecta Crypotostegia grandiflora Sesbania sesban cats claw American cotton tan tan Pithecellobium unquis-cati Gossypium barbadense Leucaena leacocephala 9 hogvine dodler Camonea umbellate Cuscuta americana false broom Burmuda grass Guinea grass Brachypodiun sylvaticum Cynodon dactylon Megathyrsus maximus Secondary Dry Scrubland Secondary dry scrubland covered the hill tops and crests on the Bovoni property. Secondary dry scrubland appears as a result of disturbance on dry forests and is characterized with very little leaf litter or soil remaining. Trees and scrubs generally do not exceed 8 m and are thorny. The herb layer is very poor or lacking. Many non-native or invasive specicies are present. Floristic diversity is extremely low. Plants very tolerant to low rainfall, drought and salt spray including legumes, cactus and bromiliads are common. The species indicative of this habitat found on the Bovoni property included tree cactus (Pilosocereus lanuginosus), jumbie pineapple (Tillandsia utriculate), tan tan (Leucaena leacocephala) and bromiliads (Neoregelia spp.). Below are common plants found in this habitat during the survey. 10 tree cactus tan tan Pilosocereus lanuginosus Leucaena leacocephala 11 sea torchwood Turk’s cap Amyris elemenfera Melacactus intortus jumbie pineapple white frangipani Tillandsia utriculata Plumeria alba 12 Bromiliads fiddlewood Neoregelia spp. Citharexylum spinosum Pigeon plum century plant Coccoloba diversifolia Agave americana 13 Lowland dry forest Lowland dry forests are characterized by low stature, high density small and medium sized trees with a high density of stems for draught tolerance, a single layer canopy and a poorly developed herb layer. Floristic diversity is low and species include both non-native and native species. In fragmented areas like the Bovoni property, which occurs away from large tracts of dry forest, diversity has undoubtably been further lost with lack of seed dispersal. This habitat was found on the seaward facing slope of the property, where moisture and leaf litter was higher than on the hill crest, and less disturbance has been experienced. Dry deciduous trees dominated the zone. These included the tan tan (Leucaena leucocephala), gumbo limb (Bursera simaruba), water mampoo (Pisonia subcordata), tamerind (Tamarindus indica), and rattlebush (Albizia lebbeck). Below are common species found in this habitat. 14 Gumbo limbo water mampoo Bursera simaruba Pisonia subcordata Tamerind Rattlebush Tamarindus indica Albizia lebbeck wild frangipani cherry Plumeria alba Bourreria succulenta 15 pinguin arjuna Bromilia pinguin Terminalia arjuna tropical almond neem Terminalia catappa Azadirachta indica Christmas bush coco-plum Comocladia dodonaea Chrysobalanus icaco 16 yellow balsum yaupon holly Croton flavens Ilex vomitoria inkberry cats claw monk orchid Randia aculeata Pithecellobium unquis-cati Oeceoclades maculate Coastal plants Along the coastline under the steep cliffs dropping to the sea, few plant species were found. All are salt water tolerent and resilient to high winds. These included some grasses, herbs and scrubs. The zone is dominated by buttonwood (Conocapus erectus), sea grape (Coccoloba uvifere) and tropical crabgrass (Digitaria ciliaris). 17 Seagrape Turk’s cap Coccoloba uvifere Melacactus intortus Buttonwood Guinea grass Conocapus erectus Megathyrsus maximus Table 1. lists all plants identified during the survey. Over 80 species in 35 families were identified, and several others were found but unidentifiable without seeds or flowers present. Many species were indicative of dry forests, scrubland, or disturbed areas of the US Virgin Islands, however some species occur in both moist and dry forest conditions. There was a mix of native, naturalized, exotic, and invasive species on the property. Table 2. lists the vertebrate animals encountered during the survey. Several bird species were detected on Merlin but were not visually identified. One deer white tail deer (Odocoileus virginianus) was observed on the property (Figure 6), and several deer trails and footprints were found. Native anoles and lizards were seen on tree branches, trunks and leaves (Figire 6), and both mongoose and green iguanas were observed scampering across the boundary roads. Assorted spiders, moths, butterflies, bees and beetles were found. The high number of flowering trees, annuals and perennials 18 appeared to support many insects and hummingbirds. Termite nests were found in the larger trees and spiders webs hug webs across shrubs and grasses.. Table 1. A list of plant species observed during floral surveys from January 23 to February 11, 2024 at the proposed solar field development at Bovoni 17 Remainder, St. Thomas USVI. Order Family Species Common Name Comments Asparagales Asparagaceae Agave americana century plant naturalized Orchidaceae Encyclia spp orchids native Oeceoclades maculata monk orchid naturalized Poales Poaceae Megathyrsus maximus Guinea grass invasive Sporobolus virginicus marsh grass native Brachypodium sylvaticum false broom grass non-native Digitaria ciliaris Tropical crab grass imvasive Cynodon dactylon Burmuda grass non-native Bromilliceae Tillandsia utriculata jumbie pineapple native Bromilia pinguin pinguin native Neoregelia spp. bromeliad species Malvales Malvaceae Thespecia populnea beach maho naturalized Gossypium barbadense American cotton non-native Corchorus hirsutus jack switch native Guazuma ulmifloria West Indian elm native Wissadula hernandioides yellow velvetleaf native Abutilon indicum Indian abutilon native Geraniales Rutaceae Amyris elemenfera sea torchwood native Triphasia trifolia sweet lime native Guettarda krugii frogwood native Amyris elemifera sea amyris Meliaceae Azadirachta indica neem native Rhoeadales Caparaceae Capparis cynophallophora Jamaican caper native Capparis flexuosa dog caper native Caryophyllales Caryophylladeae Pisonia subcordata water mampoo native Petiveriaceae Rivina humilis pigeonberry non-native Trichostima ochtandrum hoop vine native Amaryllidacea Hymenocallis caribbaea white lily native Polygonaceae Coccoloba uvifere sea grape native Coccoloba diversifolia pigeon plum native Malpighiales Euphorbiaceae Hippomane mancinella manchineel native Tragia volubilus stinging vine native Jatopha gossypiifolia bellyache bush native Gymanthes lucida shiney oysterwood Salacaceae Casearia guianensis wild coffee native Malpighiaceae Byrsonima lucida locustberry native Crotoneae Croton flavens yellow balsum native Croton astroites wild marang native 19 Table 1 cont. A list of plant species observed during floral surveys from January 23 to February 11, 2024 at the proposed solar field development at Bovoni 17 Remainder, St. Thomas USVI. Order Family Species Common Name Comments Chrysobalanaceae Chrysobalanus icaco Coco-plum native Gentianles Apocynaceae Plumeria alba white frangipani native Crypotostegia grandiflora Indian rubber vine naturalized Rubiaceae Exostema caribaeum princewood native Randia aculeata inkberry native Solanales Camoneae Camonea umbellata hogvine non-native Cuscuteae Cuscuta americana dodler invasive Rosales Fabaceae Sesbania sesban Egyptian susban non-native Albizia lebbeck rattle bush naturalized Leucaena leacocephala tan tan invasive Acacia retusa catch and keep non-native Acacia fernisiana sweet acacia invasive Acacia tortuosa casha native Piscidia piscipula Jamaican dogwood native Haematoxylum campechannum longwood casha naturalized Pithecellobium unquis-cati cats claw native Tamarindus indica tamerind naturalized Myrtales Combretaceae Conocapus erectus buttonwood native Bucida bucerus gree gree naturalized Terminalia catappa tropical almond native Terminalia arjuna arjun native Myrtaceae Eugenia axillaris white stopper Cactales Cactaceae Melacactus intortus Turk’s cap native Pilosocereus lanuginosus tree cactus native Celastrales Aquifoliaceae Ilex vomitoria yaupon holly non-native Sapindales Burseraceae Bursera simaruba gumbo limbo native Anacardiaceae Comocladia dodonaea Christmas bush native Simaroubaceae Castela erecta goat bush non-native Sapindecae Meliococcus bijugatus genip naturalized Lamiales Boraginaceae Cordia sulcata white manjack native Cordia dichotoma fragrant manjack native Bourreria succulenta cherry native Bignoniaceae Tecoma stans Ginger Thomas naturalized Dolichandra unquis-cati cats eye creeper native Verbenaceae Stachytarpheta jamaicensis snake weed native Citharexylum spinosum fiddlewood native Lantana involucrate wild sage native Commelinales Commelinaceae Commelina erecta widow’s tears native Boragenales Boraginaceae Bourreria succulenta Bahama strongbark native 20 Table 2. A list of animal species observed during surveys from January 23 to February 11, 2024 at the proposed solar field development at Bovoni 17 Remainder, St. Thomas USVI. Class Family Species Common Name Comments Mammalia Cervidae Odocoileus virginianus whitetail deer introduced, 1950’s Herpestidae. Urva auropunctata small Indian mongoose introduced 1970’s Aves Trochilidae Orthorhyncus cristatus crested hummingbird year round common Falconidae Falco sparverius American kestrel year round, rare Emberizidae Coereba flaveola bananaquit year round, common Tyrannidae Tyrannus dominicensis grey kingbird year round, common Columbidae Columbina passerina ground dove common Passer domesticus house sparrow naturalized Setophaga petechia yellow warbler Gallus gallus domesticated chicken Reptilia Iguanidae Iguana iguana green iguana naturalized Dactyloidae Anolis cristatellus crested anole native, occaional Anolis stratulus banded anole native, occaional Anolis pulchellus Puerta Rico anole Native, occasional 21 banded anole crested anole Anolis stratulus Anolis cristatellus St. Croix ground lizard white tail deer Pholidoscelis polops Odocoileus virginianus Figure 5. Animals encountered on the Bovoni 17 Remaining property. Native anoles and lizards as well as the naturalized whitetail deer (Odocoileus virginianus). Many deer tracks were found on the property. 22 Figure 6. Nests and insects encounted during the survey on the Bovoni 17 Remaining property. 23 MARINE BENTHIC SURVEY Stalley Bay, St. Thomas USVI The shoreline bordering the southwest edge of the Bovoni property is rugged and steep, with narrow beaches between rocky points. Beaches are made up of worn pebbles, various sized rocks and boulders, and small patches of course, brown sand (Figure 7). The shoreline immerges into a similar underwater benthic habitat of terrigenous rocks, pebbles and boulders, with occasional small patches and channels of course unconsolidated light sand (Figure 8). This benthic habitat type extends across the survey area along the coast, and out beyond the100 m boundary, dropping in depth from 0 to 15 feet. Offshore of the the rocky points defining the small bays along the coastline, large boulders are either emergent or lay slightly below the surface of the water (Figures 9). These boulders and rocks grow a variety of turf, macro and calcareous algae (Table 3, Figures 10), which provides food and habitat for macro- invertebrates and fishes. Schools of herbaceous fishes, as well as various sea urchins and other macro- invertebrates were found grazing on the site (Figures 11 and 12). Wrasses and small damselfish darted around the shallow rocks and crevices. The benthos surveyed in and around Stalley Bay constituted only one habitat type. This was the rocky, macro-algae dominated ecosystem described. Consolidated limestone reef was absent. A few small opportunistic coral species colonized the terrigenous hardbottom (Table 5, Figure 13) but density was low of these species. Sponges and gorgonian corals were also observed at low densities. In the center of the bay, slightly beyond the survey area, small patches of native manatee grass (Syringodium filiforme) mixed with turtle grass (Thalassa testudium) and marine algae were observed (Figure 14). These supported milk conch (Macrostrombus costatus) and bar jacks (Caranx ruber) searching for food in the seagrass habitat. On the rocky points defining the edges of the bay, numerous colonies of staghorn coral (Acropora palmata) were found colonizing the rocks and boulders (Figure 15). Over 56 colonies were counted within the survey area, both fragments and large, established colonies. There was evidence of some disease and recent mortality on the Acroporids off the point in the western end of the survey area. Three colonies of fused elkhorn coral (A. prolifera) were also found on the eastern point. The areas of high density fused staghorn and elkhorn are shown in Figure 16. 24 Figure 7. The rocky coastline along the proposed development site is covered in terrigenous rocks of various sizes, worn pebbles, and sparse areas of sand. Figure 8. The underwater benthos is covered in terrigenous rocks and boulders, with occasional patches of course, light sand. 25 Figure 9. Emergent and barely submerged rocks and boulders define the outer edges of the small bays surveyed. Figures 10. A variety of macro-algae cover the rocks and boulders. The brown algae Sargassum spp., Turbinaria turbinata and Dictyota spp. grow in thick mats over much of the site. Figures 11. Herbaceous fishes like blue tang (Acanthurus coeruleus) and ocean surgeonfish (A. bahianus) grazed the algae covered rocks and boulders. 26 Figure 12. Rock boring sea urchins (Echinometra lucunter), West Indian top shell (Cittarium pica) and West Indian sea eggs (Tripneustes ventricosus) grazed on the turf and calcareous algae growing on the rocks and boulders. Figure 13. Fire coral (Milipora spp.) and small oportunistic stony corals like finger coral (Porites porites) and mustard hill coral (P. asteroides) colonized the site. A small number of brain coral colonies (Pseudodiploria strigosa and P. clivosa) were observed colonizing the terrigeous boulders. Most corals were at very low densities. 27 Figute 14. A small grass bed offshore of the survey area supported small fish and larger predatory jacks (Caranx ruber) Figures 15. Elkhorn (Acropora palmata) and fused staghorn (A. prolifera) corals were found on the rocky outcroppings at both the east and west side of the survey area. Colonies were found at many sizes and both healthy and diseased/recently dead were observed. 28 Figure 16. Areas of elkhorn coral (A. palmata) colonization. Stars represent where 5 or more cononies were found. Table 3-6 list the plants and animals recorded during the survey off the Bovoni proposed project site. Although with the exception of staghorn, coral was nearly absent on the site, over 30 macro- invertebrates and 55 fish species were recorded, including one nurse shark (Ginglymostoma cirratum ) and one red lionfish (Pterios volitans). Most of the fish encountered were small species like wrasses and damselfish, or larger fish in juvenile stage. This is as would be expected in the shallow nearshore water. Species of commercial value found included juvenile Caribbean spiny lobsters (Panulirus argus), West Indian top shell (whelks, Cittarium pica), juvenile yellowtail snapper (Ocyurus chrysurus), and several grunt, jack and parrotfish species. One green turtle was observed moving rapidly through the survey area. 29 Table 3. Marine algae observed during a three hour survey in Stalley Bay on February 4, 2024. Phylum Family Species Common Name Chlorophyta Caulerpaceae Caulerpa mexicana green grape alga sp. green algae Caulerpa racemosa green grape alga sp. Caulerpa sertulariodes green feather alga Caulerpa taxifolia Dasycladaceae Neomeris annulata fuzzy tip alga Halimedaceae Halimeda tuna Halimeda discoidea watercress alga Halimeda opuntia Udoteaceae Penicillus pyriformis Udotea occidentalis mermaids fan sp. Udotea flabellum mermaids fan sp. Valoniaceae Ventricaria ventricosa sea pearl Phaeophyta Dictyotaceae Dictyota caribaea y branched alga sp. brown algae Dictyota divaricata y branched alga sp. Dictyopteris delicatula Padina spp. leafy rolled-blade alga Turbinaria turbinata Sargassum hystrix sargassum seaweed Rhodophyta Galaxauraceae Galaxaura oblongata tubular thicket alga red algae Galaxaura rugosa tubular thicket alga Rhodomelaceae Wrightiella blodgettii Corallinaceae Jania adherens pink segmented alga Cyanophyta Oscillatoriaceae Schizothrix calcicola red filamentous alga Tracheophyta Cymodoceaceae Syringodium filiforme manatee sea grass sea grass Thalassia testudinum turtle grass 30 Table 4. Stony corals observed during a three hour survey in Stalley Bay on February 4, 2024. Family Species Common Name Endangered Acroporidae Acropora prolifera fused staghorn coral * Acropora palmata elkhorn coral * Agariciidae Agaricea agaricites lettuce coral Faviidae Favia fragum golfball coral Orbicella faveolata boulder star coral * Pseudodiplora strigosa symmetrical brain coral Pseudodiplora clivosa knobby brain coral Poritidae Porites asteroides mustard hill coral Porites porites finger coral Milleporidae Millepora alcicornis branching fire coral Millepora complanata blade fire coral Siderastreidae Siderastrea siderea starlet coral Siderastrea radians lesser starlet coral Table 5. Marine macro-invertebrates observed during a three hour survey in Stalley Bay on February 4, 2024. Phylum Species Common Name Annelida Spirobranchus giganteus Christmas tree worm Anamobaea orstedii split crown feather duster worm Bispira brunnea social feather duster worm Arthropoda Periclimenes pedersoni pederson shrimp Panulirus argus Caribbean spiny lobster Stenocionops furcatus furcate spider crab Cnidaria Bartholomea annulata corkscrew anemone Condylactis gigantea giant anemone Echinodermata Ophiocoma echinata blunt-spined brittle star Tripneustes ventricosus West Indian sea egg Diadema antillarum long-spined urchin Eucidaris tribuloides pencil urchin Echinometra lucunter rock boring urchin Porifera Amphimedon compressa erect rope sponge Ircinia strobilina black-ball sponge Holopsamma helwigi lumpy overgrowing sponge Pseudosquilla ciliate ciliated false squilla Mollusca Macrostrombus costatus milk conch Lithopoma tectum West Indian starsnail Cerithium litteratum stocky cerith Chicoreus brevifrons West Indian murex Cittarium pica West Indian top shell 31 Table 6. Fish observed during a three hour survey in Stalley Bay on February 4, 2024. Family Species Common Name Relative abundance Acanthuridae Acanthurus coeruleus blue tang common Acanthurus bahianus ocean surgeonfish common Acanthurus chirugus doctorfish common Belonidae Ablennes hians flat needlefish rare Blennidae Ophioblennius macclurei redlip blenny rare Malacoctenus triangulatus saddled blenny common Malacoctenus macropus rosy blenny rare Carangidae Caranx ruber bar jack common Caranx bartholomew yellow jack common Gerreidae Gerres cinereus yellowfin mojarra common Grammatidae Gramma loreto fairy basslet common Gobiidae Coryphopterus hyalinus glass goby very common Haemulon Haemulon flavolineatum French grunt common Haemulon aurolineatum tomtate occasional Haemulon sciurus stripped grunt rare Holocentridae Holocentrus adscensionis squirrelfish occasional Holocentrus rufus longspine squirrelfish occasional Myripristis jacobus blackbar soldierfish occasional Labridae Halichoeres radiatus puddingwife occasional Halichoeres bivittatus slippery dick common Halichoeres garnoti yellowhead wrasse common Halichoeres maculapinnae clown wrasse common Thalasoma bifasciatum bluehead wrasse common Lutjanidae Lutjanus apodus schoolmaster snapper rare Lutjanus synagris lane snapper rare Ocyurus chrysurus yellowtail snapper occasional Mullidae Mulloidichthys martinicus yellow goatfish occasional Pseudopeneus maculatus spotted goatfish occasional Pomocentridae Stegastes partitus bicolor damselfish common Stegastes leucostictus beaugregory common Stegastes adustus dusky damselfish common Stegastes variabilis cocoa damselfish common Stegastes planifrons 3-spot damselfish common Abudefduf saxatillis sergeant major common 32 Table 6 cont. Fish observed during a three hour survey in Stalley Bay on February 4, 2024 Family Species Common Name Number Scaridae Sparisoma viride stoplight parrotfish occasional Sparisoma aurofrenatum redband parrotfish occasional Sparisoma chrysopterum redtail parrotfish occasional Sparisoma rubripannae yellowtail parrotfish occasional Sparisoma radians bucktooth parrotfish common Scarus iserti striped parrotfish common Scarus vetula queen parrotfish occasional Scarus taeniopterus princess parrotfish Scorpaenidae Pterios volitans red lionfish one Serranidae Hypoplectrus nigricans black hamlet rare Hypoplectrus unicolor butter hamlet rare Hypoplectus puella barred hamlet rare Serranus tigrinus harlequin bass rare Serranus tabacarius tobaccofish rare Cephalopholis cruentatus graysby rare Sphyreanidae Sphyrna barracuda great barracuda one Tetraodontidae Canthigaster rostrata sharpnose puffer occasional Diodon hystix porcupinefish rare Sphoeroides testudineus checkered puffer one Chondrichthyes Ginglymostomatidae Ginglymostoma cirratum nurse shark one Figure 17. A variety of macro-invertebrates were found in Stalley Bay. Commercially important species included the Caribbean spiney lobster (Panularus argus) and West Indian top shell (Cittarium pica). 33 Figure 18. A wide variety of fishes were found in Stalley bay off the proposed development site. Most were small wrasses and damselfish species but snapper, grunts, parrotfish and jacks were also fairly abundant in deeper water under and around rocks and ledges. 34 PROTECTED SPECIES Federally protected tree boas (Chilabothrus granti) were not found on the Bovoni property site however the conditions found there fall well within their habitat preference (i.e. rocky shallow soil with dense dry vegetation), and the area is within their distribution range. Since they are largely nocturnal, there is a reasonable chance that they inhabit the property but were not detected during daytime surveys. Federally protected elkhorn and staghorn (Acropora spp.), coral colonies were present within the study area, colonizing the rocky bottom and boulders seaward of the coastal points of land. One star coral (Orbicella faveolata), also federally protected, was found within the survey area. All other coral species found within Stalley Bay were opportunistic corals or brain corals growing on the submerged rocky substrate. Manatee and turtle grass was present outside of the survey area but was very sparse inside the bay. One green sea turtle (Chelonia mydas) as observed. Hawksbill turtles were not seen. 35 SIGNIFICANCE OF RESULTS and RECOMMENDATIONS Although the property at Bovoni 17 Remainer is a garbage strewn, ecologically fragmented, highly disturbed property with harsh environmental conditions, little remaining topsoil, seasonal draught, and exposure to regular heavy winds and salt spray, it retains plant and animal species that are native to dry forests of the US Virgin Islands and exist in an apparently resilient cycle of life. Destruction of the natural communities and attributes of the property for the solar farm development should not be taken lightly, but instead with respect and with the aim of conserving the natural resources that can be conserved. In particular, care should be taken to protect the endangered species including the tree boa if present, and the Acropora corals in Stalley Bay. • Best conservation practices should be employed when clearing and developing the site. Tree boas should be closely watched for by equipment operators, surveyors and all workers, and DPNR should be notified if one is seen so that it can be removed and relocated. • Sediment control with the use of silt curtains along the steep hillside is recommended. Immediate grass planting or the use of soil covering material is highly recommended to prevent runoff and sedimentation of Stalley Bay. Attachment E – Archeological Study PHASE I (A&B) ARCHAEOLOGICAL SURVEY 30.5 ACRES, PARCEL 17 REM. ESTATE BOVONI, ST. THOMAS US VIRGIN ISLANDS Prepared for: Mr. Christian Loranger Quantum Solar LLC PO Box 6347 St Thomas, US Virgin Islands 00804 CocoSol International Inc. Project 230927 Prepared by: CocoSol International Inc. 777 Brickell Ave #500-97996 Miami, Florida 33131 May 13, 2024 Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 i TABLE OF CONTENTS 1.0 INTRODUCTION ............................................................................................................................. 1 1.1 Proposed Project .......................................................................................................................... 2 1.2 Regulatory Framework ................................................................................................................ 3 1.3 Environmental Setting .................................................................................................................. 3 2.0 SURVEY METHODS ........................................................................................................................ 7 2.1 Literature and Records Review ................................................................................................... 7 2.2 Field Survey ................................................................................................................................. 7 3.0 FINDINGS ........................................................................................................................................ 9 3.1 Literature and Records Search .................................................................................................... 9 3.1.1 Precolonial Cultural Setting .................................................................................................... 9 3.1.2 Colonial Cultural Setting ....................................................................................................... 10 3.2 Field Survey ................................................................................................................................ 11 4.0 CONCLUSIONS AND RECOMMENDATIONS ............................................................................. 12 5.0 REFERENCES ................................................................................................................................ 13 TABLE OF FIGURES Figure 1: Google Earth image depicting the location of the survey area. .................................................... 1 Figure 2: Topographic map of !7 Rem., Estate Bovoni ................................................................................ 2 Figure 3: Map depicting the proposed solar panel array. ........................................................................... 3 Figure 4: Photograph depicting the vegetation and immediate environment of the subject property, view to the southeast. ............................................................................................................................................. 4 Figure 5: Photograph of the characteristic northwestern slopes of the subject property ............................ 4 Figure 6: NRCS soil map depicting the extent and location of the Southgate-Rock complex. Source: complexhttps://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx ........................................................ 5 Figure 7: Photograph of the summit of the eastern most knoll .................................................................... 5 Figure 8: Photograph of characteristic ground surface contexts with exposed gravelly loam. ................... 6 Figure 9: Photograph of typical survey transect ........................................................................................... 8 Figure 10: Photograph of example shovel test depicting the thin gravely loam that is underlain by weathered rock ............................................................................................................................................... 8 Figure 11: Segment of the 1839 Hornebeck map depicting the location of the subject property (red arrow). Source map: www5.kb.dk/maps/kortsa/2012/jul/kortatlas/object65501/da/ .................................. 11 Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 1 1.0 INTRODUCTION CocoSol International Inc. (CocoSol) performed a Phase I (A&B) Cultural Resources Survey (Survey) for approximately 30.5 acres of land located on 17 Rem., Estate Bovoni, St. Thomas, U.S Virgin Islands (Figures 1 and 2). The Survey was performed on behalf of Quantum Solar LLC of St. John, USVI. Figure 1: Google Earth image depicting the location of the survey area. Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 2 Figure 2: Topographic map of !7 Rem., Estate Bovoni 1.1 Proposed Project Quantum proposes to construct a solar photovoltaic panel array on the subject property as shown in Figure 3. The installation of the panels will include the clearing of the land by mulching, access road construction, and other limited earth change activities. The panels frames will be anchored with screws to depths of approximately 2.5 meters below the existing ground surface. Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 3 Figure 3: Map depicting the proposed solar panel array. 1.2 Regulatory Framework Because of the earth change activities required to develop the subject property, the project is required to comply with Title 29, Chapter 17, Section 959, of the Virgin Islands Code, also known as the Virgin Islands Antiquities and Cultural Properties Act. Because of federal permitting for the project, it is also required to comply with Section 106 of the National Historic Preservation Act of 1966, as amended. 1.3 Environmental Setting The subject property is in the southeastern part of St. Thomas on a peninsula overlooking the Caribbean Sea. The topography of the subject property consists of a narrow ridge top with steeply sloping side slopes ranging from 40 to 90 percent slope gradient. Three knolls (Figure 2) are the highest elevations of the ridge, these are narrow and less sloping, the center knoll is the less sloping area of the subject property, the highest elevation is on the eastern knoll. The vegetation consists of secondary growth of pioneer species such as tan-tan, caccia, various bromeliads and cacti. Figures 4 and 5 depict the site conditions described above. An abandoned, and until recently overgrown road, was identified in the northeast part of the ridge. The road was cut on the ridge shoulder (Figure 2). Barbed wire was observed throughout the property, indicating that the subject property was used to graze cattle. The soil on the subject property is defined by the United States Department of Agriculture: National Resource Conservation Service as belonging to the Southgate-Rock complex (SRE, SRF, and SRG). These soils are characterized as containing thin (< 15 centimeters) gravelly to very gravelly loam topsoil that are underlain by weathered rock. The existing conditions found throughout the subject property indicate that extensive erosion has deflated the soil column leaving exposed on surface very gravelly loam or the weathered rock, Figures 6 to 8 provide the soil map for the subject property and the ground surface and soil characteristics. 40' CLEARED AREA 100±' SETBACK PROPOSED GROUND MOUNTED SOLAR ARRAY APPROXIMATE PROPERTY LINE PER USVI MAP GEO PROJECT LOCATION N VIelectron, LLC APRIL 26, 2023 BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI SCALE: 1" = 300' LOT AREA: 30± ACRES LOT ZONING: C SYSTEM SIZE: 13.0 MWdc 10.0 MWac MODULE: VSUN 550W TOTAL MODULES: 23,640 RACKING: 15° TILT, 2MIP 6'-0" TYP AISLE WIDTH NOTE: THIS PLAN IS FOR CONCEPTUAL PLANNING PURPOSES ONLY AND IS BASED ON LIMITED EXISTING CONDITIONS INFORMATION. THIS PLAN SHALL NOT BE USED FOR PERMITTING OR CONSTRUCTION. Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 4 Figure 4: Photograph depicting the vegetation and immediate environment of the subject property, view to the southeast. Figure 5: Photograph of the characteristic northwestern slopes of the subject property Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 5 Figure 6: NRCS soil map depicting the extent and location of the Southgate-Rock complex. Source: complexhttps://websoilsurvey.nrcs.usda.gov/app/WebSoilSurvey.aspx Figure 7: Photograph of the summit of the eastern most knoll Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 6 Figure 8: Photograph of characteristic ground surface contexts with exposed gravelly loam. Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 7 2.0 SURVEY METHODS The methods employed during the Survey are presented below. 2.1 Literature and Records Review The literature and records review include the following: • Review of the archaeological site files through consultation with the VISHPO • Review of historic and modern cartographic sources • Review of readily available published and unpublished literature The findings obtained during the literature and records search are presented in Section 3.0 of this report. 2.2 Field Survey The less steep and narrow lands of the ridge summit were shovel tested along a single transect established along the spine of the ridge with shovel tests performed at 30-meter intervals, where soil was present. The shovel tests measured approximately 30 centimeters in diameter and were excavated to depths no longer considered to have the potential of containing non-random artifact bearing matrices. Generally, the shovel tests were extended to between 4 and 10 centimeters below ground surface, the depths at which the artifactually sterile, weathered rock substrata were encountered. The soil from each shovel test was screened through ¼ inch hardware cloth to recover artifacts, if any. As the survey team walked from test location to the next, careful observation of the ground surface was made to identify cultural materials in surface contexts, if any. Figures 9 and 10 depict the field survey activities and an example shovel test. Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 8 Figure 9: Photograph of typical survey transect Figure 10: Photograph of example shovel test depicting the thin gravely loam that is underlain by weathered rock Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 9 3.0 FINDINGS The findings for the literature and records search, and field survey are presented below. 3.1 Literature and Records Search The literature and records review performed did not identify potentially significant cultural resources within the survey areas. The VISHPO informed us that no cultural resources of record were listed in the archaeological site files or the VI Registry for the subject property. The VISHPO did provide information for archaeological studies and sites of record for the Bovoni Peninsula. The information provided by the VISHPO includes multiple sites to the northwest of the subject property that include the Bovoni plantation settlement, a lime kiln, a cemetery, and an indigo works. Several colonial sites have been identified in the vicinity but are outside of the subject property. David Knight performed a reconnaissance survey of 66 acres on Plots 18-I, 18-J, 18-K and 18-M (2006) and identified several constructed colonial features and scatters of historic artifacts. Knight did not encounter pre-colonial materials, though it should be noted that he did not perform subsurface testing. Ms. Kourtney Donohue performed a Phase I Archaeological Survey for Plots 16 and 17E (2015) during which she identified the remains of the Bovoni Plantation site that was dedicated to cotton and sugar cane- based agriculture, with production from the late 18th to the approximate mid 19th century. Donohue recommended a Phase II Archaeological Testing and Evaluation Study to assess whether the site met criteria of eligibility to the National Register of Historic Places (NRHP). Subsequently, the University of Alabama performed the Phase II study and determined that the archaeological contexts did not meet criteria of eligibility to the NRHP because of extensive disturbances to the site and as such, the site lacked contextual integrity, although preservation of the remains of constructed features was recommended. 3.1.1 Precolonial Cultural Setting The U.S. Virgin Islands (USVI) contains a rich milieu of cultural resources that offer testimony to over three thousand years of human experience. These cultural resources range from habitation sites established during the Archaic Period at Krum Bay and the Magens Bay Arboretum Complex on St. Thomas approximately three thousand years ago, to the multiple village and farmstead sites on all the islands, to chiefly ceremonial centers such as the Salt River Site on St. Croix, which is the site of the first encounter between the Taino and Europeans. After the Archaic Period, the indigenous people of the Virgin Islands participated in a geographically vast network of social and economic relationships as evidenced by shared stylistic attributes of ceramics from the Saladoid, Ostionan and Chican culture periods across a significant part of the Antilles. Shared cosmological ideas are also evidenced by the presence of cemis and other religious paraphernalia in the Virgin Islands and across large areas of the Caribbean Archipelago. Recent archaeological research indicates that the insular landscapes were dotted with small and large villages along the coastal section fringes of the islands as well as the uplands. Additionally, small settlements herein characterized as farmsteads are now being discovered in the uplands. These small upland farmsteads have mostly been unrecognized in the archaeological record; however, recent archaeological surveys for large development projects have resulted in the identification of such sites. Long distance trade is evidenced by the presence of jadeite artifacts manufactured from raw lithic sources found in Central America and chert from Puerto Rico and down island. A whole host of cultigens with origins in the continent became part of the quotidian diet; more exotic items such as guinea pig, an Andean Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 10 domesticate, have been found in Puerto Rico and are likely be documented by future archaeological studies as also present in Virgin Island archaeological contexts. 3.1.2 Colonial Cultural Setting Following the brief European incursion on St. Croix in 1493, the islands became the possession of several European nations including Spain, England, Malta, the Netherlands, and France. The colonies that these nations attempted to establish largely failed. Not until Denmark’s Danish West Indies Company settled in St. Thomas in 1672 and on St. John in 1694, did these colonies become viable enterprises. The Danes purchased St. Croix from the French in 1733 and the island, with its larger size, gentler topography, fertile soils, and surface streams, became a dynamic sugarcane-based enterprise that lasted for a century. The Danes divided the islands into estates that were largely dedicated to agriculture. Although largely owned by Danes, British managers often administered the estates. The early plantations, particularly on St. Thomas and St. John were primarily dedicated to the production of cotton and indigo, but because of competition from the continent, particularly the southern United States, these two agricultural pursuits were largely abandoned in favor of sugar cane. The economies of St. Croix and St. John were primarily based on sugar cane agriculture and the production of muscovado sugar and rum. In contrast, the economy of St. Thomas was primarily based on trade, although agricultural pursuits also formed an integral part of its economy. 3.1.3 Estate Bovoni Throughout its Danish colonial history, Estate Bovoni was generally known as plantation 1 and 2 in the Frenchman Bay Quarter (Franskmand Bay Quarter) and/or as Dværgsteen and Emanuel. Over the course of the Danish colonial period the lands changed hands more than twenty-five times (University of Alabama: 2016:12). As with most St. Thomas plantations, the Bovoni enterprise engaged in cotton and sugar cane agriculture well into the 19th-century. Following the virtual demise of cotton and then sugar cane agriculture, these lands reverted to bush and grazing fields in the late 19th and 20th centuries. The early historic cartographic sources do not provide sufficient detail to discern the presence of settlements within the subject property. Significantly more accurate, the 1839 Hornbeck map of St. Thomas (Figure 11) depicts the Bovoni peninsula as devoid of structures or settlements. Modern cartographic sources such as the 1922 US Coastal Geodetic Map for St. Thomas, the 1952 and 1982 USGS maps for Eastern St. Thomas do not depict structures or settlements located within the subject property. Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 11 Figure 11: Segment of the 1839 Hornebeck map depicting the location of the subject property (red arrow). Source map: www5.kb.dk/maps/kortsa/2012/jul/kortatlas/object65501/da/ 3.2 Field Survey No cultural resources were identified during the field survey performed for the subject property. The subject property was found to be extensively disturbed, as evidenced by exposed subsoil and parent rock material in ground surface contexts (Figures 8 and 10). Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 12 4.0 CONCLUSIONS AND RECOMMENDATIONS Our concluding remarks and recommendations are presented below. 4.1 Conclusions No cultural resources were identified during the Phase I (A&B) Cultural Resources Survey performed for 17 Rem., Estate Bovoni, St. Thomas USVI. The subject property has been extensively disturbed by nearly two centuries of agriculture, and later as grazing fields for cattle as indicated by the barbed wire fencing over a significant part of subject property. As noted in Section 3.0, we found the soils to have been deflated leaving only a few centimeters of the very gravelly subsoil exposed or completely absent leaving the weathered rock parent material exposed on the surface. Other disturbance noted include a cut road on the northeast part of the ridge and push-piles from past (20th century) clearing activities using heavy equipment. No precolonial or colonial artifacts or shell fragments were found in surface contexts, which are often found scattered at disturbed archaeological sites. The topographic variables such as the very narrow ridge top and steep side slopes and nearly vertical cliffs to the ocean have likely rendered the subject property an unattractive settlement location. We note that the sites of record in the peninsula are contained in more level lands with better access to the sea. 4.2 Recommendations CocoSol recommends that the Virgin Islands State Historic Preservation Office issue a finding of no objection to the construction of the proposed photovoltaic panel array. If cultural resources are encountered during clearing and/or construction activities, we recommend suspension of the work in the area of concern and that the Virgin Islands State Historic Preservation Office is immediately notified. Report of Phase IA&B Cultural Resources Survey 17 Rem., Estate Bovoni, St. Thomas, USVI CocoSol Project 230927 May 13, 2024 13 5.0 REFERENCES Donohue, Kourtney 2015 Phase I, Cultural Resource Survey: Estate Bovoni, Parcels 16 & 17 E, Frenchman's Bay Quarter, St. Thomas, USVI. Report submitted to Dry Marina, St. Thomas by Kourtney Donohue, St. John, U.S. Virgin Islands. Knight, David 2006 A Preliminary Assessment of Cultural Resources Within Parcels 18-1, 18-J, 18-K, and 18-M, Estate Bovoni, #1 & #2 Frenchman's Bay Quarter, St. Thomas, USVI. Report submitted to Boyd Holding USVI by David Knight and the Virgin Islands Historical and Genealogical Resource Center (VIHGRC) of St. Thomas, U.S. Virgin Islands. Persons, Brooke 2015 Phase II Archaeological Testing and Evaluation At The Bovoni Estate Site at Plots 17-E And 16, Estate Bovoni, Frenchman's Quarter, St. Thomas, U.S. Virgin Islands. The University of Alabama, Tuscaloosa. Attachment F – Driveway Permit Application and Plans DATE _________________ OWNER INFORMATION Name ________________________________________________ Telephone _____________________ Email Address ________________________________________________________________________ Parcel(s)No./Address _________________________________________________________________ DESIGNER INFORMATION Name ___________________________________ Email Address _______________________________ Telephone ______________________ Registration No. _____________________________________ Driveway Width ___________ ft. Swale Width __________ ft. Swale Length __________ ft. Swale Depth __________ ft Grade of proposed Road/Driveway at intersection of Public Road and/or highway _____ percent/Indicate plus or minus slope ____ Along intersection of Culvert Invert Depth ______ft., W ______Ft. & L ______ Please submit four (4) copies of map showing: site plan, location map and detailed driveway drawings. ☐ Permit Approved ☐ Permit Disapproved Permit # __________________ Date Issued __________________ Expiration __________________ Total Amount Due __________________ Permit Fees Collected __________________ Attachments: ☐ Drawings Samples ☐ Construction Specifications Commissioner _________________________ Driveway N/A N/A 20 225 Match existing 2% +/- 10/21/2025 STB Solar, LLC (A VIElectron, LLC company) c/o Christian Loranger 1-508-965-8637 nbdsolar@gmail.com 109402010100, No. Bovoni 17 Remainder, Estate Bovoni, St. Thomas, VI 00802 Hoyle Tanner & Associates, Inc. N/A N/A N/A D1 ACCESS DRIVEWAY SITE PLAN BOVONI 17 REMAINDER ESTATE BOVONI, SAINT THOMAS, VI 00804 95 E. Mitchell Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com STB SOLAR, LLC A VIELECTRON, LLC COMPANY D2 ACCESS DRIVEWAY DETAILS BOVONI 17 REMAINDER ESTATE BOVONI, SAINT THOMAS, VI 00804 95 E. Mitchell Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com STB SOLAR, LLC A VIELECTRON, LLC COMPANY TYPICAL ACCESS DRIVEWAY SECTION Attachment G – Site and Erosion Control Plans C1 COVER SHEET BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 SITE DEVELOPMENT PLANS FOR A PROPERTY ID: 109402010100 OLG MAP NUMBER: A9-553-T000 AREA: 30.95± ACRES DPNR ZONE: C COMMERCIAL ZONE PROPERTY INFORMATION STB SOLAR LLC (A VIELECTRON LLC COMPANY) 5000 EST. ENIGHED, STE 4A, PMB 146 SAINT JOHN, VI 00830 PROPERTY OWNER LIST OF DRAWINGS DWG # SHEET# DWG NAME C1 1 COVER SHEET C2 2 EXISTING CONDITIONS PLAN C3 3 SITE PREP / EROSION CONTROL PLAN C4 4 SITE LAYOUT PLAN C5 5 GRADING & DRAINAGE PLAN C6 6 SITE SECTIONS C7 7 EROSION CONTROL NOTES & DETAILS C8 8 CONSTRUCTION DETAILS 1 C9 9 CONSTRUCTION DETAILS 2 OCTOBER 30, 2025 PROPOSED SOLAR ENERGY FACILITY WITH BATTERY STORAGE 10.725 MWdc (10.000 MWac) PERMIT APPROVALS NUMBER DATE 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 SURVEYOR MARVIN BERNING & ASSOCIATES 6501 RED HOOK PLAZA, SUITE 201 SAINT THOMAS, VI 00802 ATTN: HARRY GAURILOFF, RLS (340) 775-6557 ELECTRICAL ENGINEER PURE POWER ENGINEERING, INC. 111 RIVER STREET, SUITE 1110 HOBOKEN, NJ 07030 ATTN: ELIZA HARTFORD (551) 220-2790 CIVIL ENGINEER / PERMITTING CONSULTANT HOYLE, TANNER & ASSOCIATES, INC. 95 E. MITCHELL HAMMOCK RD, STE 200 OVIEDO, FL 32765 ATTN: BILL DAVIDSON, PE (603) 501-8541 PROJECT TEAM MODULE: FIRST SOLAR SERIES 6 465W TOTAL MODULES: 23,064 RACKING: 10° TILT & 20° TILT, 2MIP ROW SPACING: 2'-0" (TYP) CLEARANCE 5'-0" AND 8'-0" WHERE NECESSARY SYSTEM DESCRIPTION STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STE 4A, PMB 146 SAINT JOHN, VI 00830 APPLICANT ISSUED FOR PERMITTING 1 PROJECT LOCATION DPNR FULL LAND CLEARING TBD __/__/25 DPNR MAJOR CZM PERMIT TBD __/__/25 CULTURAL RESOURCE SURVEY COCOSOL INTERNATIONAL, INC. 777 BRICKELL AVENUE, #500-97996 MIAMI, FL 33131 ATTN: CARLOS SOLIS (305) 518-7236 BIOLOGICAL SURVEY KADISON ISLANDS CONSULTING, LLC P.O. BOX 305124 SAINT THOMAS, VI 00803 ATTN: ELIZABETH KADISON DPNR DRIVEWAY PERMIT TBD __/__/25 DPNR BUILDING PERMIT TBD __/__/25 DPNR ELECTRICAL PERMIT TBD __/__/25 RACKING PROVIDER POLAR RACKING, INC. 6889 REXWOOD ROAD, UNIT #5 MISSISSAUGA, ONTARIO L4V 1R2, CA ATTN: ADRIAN MAROLLY (514) 250-7788 PROJECT DEVELOPER STB SOLAR LLC 5000 EST ENIGHED, STE 4A, PMB 146 SAINT JOHN, VI 00830 ATTN: CHRISTIAN LORANGER (508) 965-8637 GLINT AND GLARE STUDY DARE STRATEGIES, LLC 2248 ROSE HALL DRIVE VIRGINIA BEACH, VA 23454 ATTN: DAVE BELOTE (703) 822-1965 PHASE 1 ESA CARITECH GROUP, INC. 125 COTTON VALLEY; P.O. BOX 5018 KINGSHILL, SAINT CROIX, VI 00851 ATTN: ERIC DOUGLAS, MSC, PE (340) 690-9533 DPNR FLOOD PERMIT TBD __/__/25 DPNR PARTIAL LAND CLEARING (TRANSECTS) N/A 12/1/23 EXISTING LEGEND C2 EXISTING CONDITIONS PLAN 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 REFERENCE PLANS: PROPERTY INFORMATION: 2 EXISTING CONDITIONS NOTES: LEGEND C3 SITE PREP / EROSION CONTROL PLAN 3 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 SUMMARY OF PROPOSED ACTIVITY: CONSTRUCTION SEQUENCE: CONSTRUCTION GENERAL PERMIT NOTES: EROSION CONTROL NOTES: LEGEND C4 SITE LAYOUT PLAN 4 GENERAL NOTES: DIMENSIONAL REQUIREMENTS (C): REGULATION REQUIRED PROVIDED PROJECT DATA: SYSTEM DESCRIPTION: SOLAR DESIGN NOTES: 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 LEGEND C5 GRADING & DRAINAGE PLAN 5 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 GRADING NOTES EROSION CONTROL NOTES: C6 SITE SECTIONS 6 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 C7 EROSION CONTROL NOTES & DETAILS 7 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 TEMPORARY STONE CHECK DAM DETAIL (AS NEEDED) EROSION CONTROL BERM DETAIL (AS AN APPROVED EQUAL) SILT FENCE EROSION CONTROL DETAIL STABILIZED CONSTRUCTION ENTRANCE/EXIT DETAIL SILT SOCK EROSION CONTROL DETAIL (AS AN APPROVED EQUAL) EROSION CONTROL NOTES: C8 CONSTRUCTION DETAILS 1 8 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 25' WIDE ACCESS GATE DETAIL PERIMETER SECURITY FENCE DETAIL CONCRETE WASHOUT AREA DETAIL TYPICAL SOLAR RACKING ASSEMBLY DETAIL C9 CONSTRUCTION DETAILS 2 9 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 TYPICAL ACCESS DRIVEWAY SECTION DRIVEWAY 1 DETAIL PLAN PERMANENT ROCK BERM SERIES Attachment H – Required Maps and Plans Hydrologic Soil Group—Virgin Islands of the United States (Bovoni - Expanded) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 2025000 2025200 2025400 2025600 2025800 2026000 2026200 2026400 2025000 2025200 2025400 2025600 2025800 2026000 2026200 2026400 299900 300100 300300 300500 300700 300900 301100 301300 301500 301700 301900 302100 302300 299900 300100 300300 300500 300700 300900 301100 301300 301500 301700 301900 302100 302300 18° 19' 5'' N 64° 53' 38'' W 18° 19' 5'' N 64° 52' 12'' W 18° 18' 16'' N 64° 53' 38'' W 18° 18' 16'' N 64° 52' 12'' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 20N WGS84 0 150 300 600 900 Feet 0 45 90 180 270 Meters Map Scale: 1:3,140 if printed on D landscape (34" x 22") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A A/D B B/D C C/D D Not rated or not available Soil Rating Points 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 The soil surveys that comprise your AOI were mapped at 1:12,000. 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: Virgin Islands of the United States Survey Area Data: Version 5, Sep 13, 2023 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jan 1, 2016—Feb 16, 2023 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. Hydrologic Soil Group—Virgin Islands of the United States (Bovoni - Expanded) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI CbB Cinnamon Bay loam, 0 to 5 percent slopes, occasionally flooded B 9.7 1.5% CgC Cinnamon Bay gravelly loam, 5 to 12 percent slopes, occasionally flooded A 6.5 1.0% SaA Salt flats, ponded 4.5 0.7% SBA Sandy Point and Sugar Beach soils, 0 to 2 percent slopes, frequently flooded C/D 64.5 10.1% SoA Solitude gravelly fine sandy loam, 0 to 2 percent slopes, frequently flooded A/D 37.2 5.8% SrD Southgate-Rock outcrop complex, 12 to 20 percent slopes D 9.7 1.5% SrE Southgate-Rock outcrop complex, 20 to 40 percent slopes D 110.3 17.3% SrF Southgate-Rock outcrop complex, 40 to 60 percent slopes D 79.4 12.5% SrG Southgate-Rock outcrop complex, 60 to 90 percent slopes D 16.0 2.5% Us Ustorthents 38.4 6.0% Totals for Area of Interest 637.5 100.0% Hydrologic Soil Group—Virgin Islands of the United States Bovoni - Expanded Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 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, B/D, 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 C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Hydrologic Soil Group—Virgin Islands of the United States Bovoni - Expanded Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 Attachment I – Hydrology Report Hydrology Report For a Proposed Solar Energy Facility with Battery Storage Bovoni 17 Remainder Estate Bovoni St. Thomas, U.S. Virgin Islands HTA Project No. 23.141001.00 October 2025 Applicant: STB Solar LLC A VIelectron LLC Company Table of Contents Introduction .......................................................................................................................................................... 3 Project Location .......................................................................................................................... 3 FEMA Flood Hazard ..................................................................................................................... 3 Project Description ..................................................................................................................... 4 Hydrologic Analysis .............................................................................................................................................. 5 Rainfall ........................................................................................................................................ 5 Soils ............................................................................................................................................. 6 Hydrographs ................................................................................................................................ 6 Modeling ..................................................................................................................................... 6 Pre-Development Conditions .............................................................................................................................. 7 Post-Development Conditions ............................................................................................................................ 8 Peak Runoff Analysis .......................................................................................................................................... 10 Conclusion .......................................................................................................................................................... 12 Appendix A – Rainfall Data........................................................................................................ 13 Appendix B – NRCS Web Soil Survey ........................................................................................ 15 Appendix C – Pre-Development Watershed Map .................................................................... 20 Appendix D – Post-Development Watershed Map .................................................................. 22 Appendix E – HydroCAD Analysis .............................................................................................. 24 Introduction Project Location The proposed solar energy facility is located within Tier I (coastal zone) at parcel 17 Remainder Bovoni, Estate Bovoni near the eastern side of St. Thomas, south of Landfill Road (See below image). The total parcel (109402 010100) area is 30.95 +/- acres, where 23.51 +/- acres is anticipated to be disturbed. FEMA Flood Hazard The Federal Emergency Management Agency (FEMA) Flood Insurance Rate Map (FIRM) Number FM7800000043G, effective date April 16, 2007, covers the project site. The site is predominately located within flood zone “X”, with the 100-year flood zone “VE” present in the southern part of the site near the coastline (see below image). No wetlands are present on-site. Topographic information used for the development of hydrologic and hydraulic models at the project site and contiguous areas was obtained from American Land Title Association (ALTA) and topographic survey (survey) prepared by Marvin Berning & Associates professional land surveyors in May 2024. The survey provided 2-foot interval contours of the project area, the shoreline, cliff line, and limits of the flood zone. Project Description The project consists of the construction of a ground mounted racking solar field system with a 10.725+/- MWdc (10 MWac) capacity including on-site battery energy storage system (BESS), equipment pads and access driveways. The racking system will be supported on 2.375-inch diameter ground screws installed into the ground in rows running in the east-west axis with each row separated by a typical 2-foot aisle. Depending on the existing slopes, some rows will be spaced in either 5-foot or 8-foot aisles to the north where the site experiences reverse slopes. The solar panels are set at a fixed tilt of either 10- or 20- degrees that will rest a minimum 24-inches above ground allowing grass and other various open space vegetation to grow underneath. The site is currently being partially cleared in accordance to an approved Permit Letter Request with a low ground pressure skid steer or track excavator with a mulching attachment to remove and grind the existing trees and vegetation within 2-inches of the existing ground surface to preserve all topsoil and allow existing roots to remain, where the majority of the mulch is left in place while any excess mulch is placed in a perimeter berm along the downhill slopes toward the coast (see below image). Prior to construction of the solar racking system, the remaining project area will be cleared using the current clearing methods and the security fence will be installed. Hydrologic Analysis Rainfall The runoff analysis is based on the 2, 10, 25, and 100-year storm events using the SCS Technical Release 55 (TR-55) method with Type-II, 24-hour storms. Rainfall precipitation data was obtained from National Oceanic and Atmospheric Administration’s (NOAA) National Weather Service Precipitation Frequency Data Server (Appendix A) based on the project location. A summary of the rainfall events is shown in the table below. STORM EVENT 24-HOUR RAINFALL (Inches) 2-Year Storm 3.82 10-Year Storm 7.30 25-Year Storm 9.58 100-Year Storm 13.50 Soils Existing site soil information was taken from the Natural Resources Conservation Service’s (NRCS). The NRCS Web Soil Survey (Appendix B) classifies the types of soils found within the watershed according to hydrologic soils group (HSG): A, B, C or D. The site consists entirely of HSG D soils, as the United States Virgin Island of Saint Thomas is known for having volcanic, rocky, soils. Hydrographs The overall pre-development and post-development site hydrographs were calculated utilizing the method detailed in TR-55 “Urban Hydrology for Small Watersheds” as published by the United States Department of Agriculture Soil Conservation Service, “SCS”, and revised in June of 1986. The site has a natural ridgeline to the north that runs in the east-west direction where the majority of the site drains in the southern direction towards the coast, while portions of the site drain north towards an existing ditch that runs along the southern side of the existing paved road. The entire site eventually discharges into the Caribbean Sea. To effectively analysis the on-site hydrologic and hydraulic conditions of the project, the site has been divided into three (3) watersheds – due to the natural ridges and valleys – each with a designated design point (assumed critical stormwater discharge point). Watershed 1 drains primarily to the north into the existing ditch running along the south side of the existing paved road, eventually into the Sea. Watershed 2 drains into an existing valley central to the site and eventually into the Sea. Watershed 3 drains into an existing valley on the east side of the site and eventually into the Sea. The watershed delineations for the project area do not change from pre-development to post-development conditions. Modeling The hydrologic analysis was performed using the HydroCAD computer program which is based on the NRCS Technical Release 20 (TR-20) Model for Project Formulation Hydrology. Due to the existing grounds and topography, combination of segments of sheet flow and shallow concentrated flow methods were used to determine the time of concentration for each watershed. For this analysis, rainfall depth was uniformly imposed on the pre- and post-development watersheds over a 24-hour period and then converted to a peak runoff volume using a Runoff Curve Number (CN), which is determined based on the soil types and HSG classified by the NRCS Web Soil Survey. The lower or higher the CN the more permeable or impervious the ground conditions are, respectively. Said volume is transformed into a hydrograph utilizing the Unit Hydrograph Theory and routing procedures, which are dependent on the travel time through each watershed. Pre-Development Conditions The existing site has been extensively disturbed, previously used for agricultural purposes, and is currently vacant. The site has been partially cleared and mulched in accordance with an approved Permit Letter Request but was previously underdeveloped and overgrown with woods and grass, which have been used as the pre-development conditions for the purpose of this analysis. The following land covers have been used for the HSG D soils identified on-site: “Artificial desert landscape”, “Dirt roads”, “Impervious area”, “Paved parking”, and “Woods/grass comb., Good”. Please see Pre-Development Drainage Map (Appendix C). The site contains a few areas of impervious cover (approximately 5,170 +/- SF) from a paved driveway/parking lot, miscellaneous concrete pads, and paved road to the site that runs along the northern side of the site. For the purposes of this analysis, the area between the property boundary and the existing paved road was considered desert landscape while the remaining impervious cover was considered paved area. Design Point 1 (DP1) is located on the northern and western side of the site and receives runoff from approximately 12.76 acres and eventually discharges to the Sea. Design Point 2 (DP2) is located central to the site and receives runoff from approximately 8.78 acres and eventually discharges to the Sea. Design Point 3 (DP3) is located on the eastern side of the site and receives runoff from approximately 6.64 acres and eventually discharges to the Sea. Due the existing volcanic soils and topography, sheet flow was assumed for the first 300 feet and eventually transitions to a shallow concentrated flow through the existing wood/brush conditions in naturally occurring valleys for all three (3) design points. The analysis criteria used for the SCS TR-20 hydraulic analysis of the pre-development conditions are as follows: • Storm Event Frequency: 2, 10, 25, and 100-year, 24-Hour Storms • Runoff Coefficients (CN) Impervious, HSG D = 98 Paved area, HSG D = 98 Artificial desert landscape, HSG D = 96 Dirt roads, HSG D = 89 Woods/grass comb., Good, HSG D = 79 The table below provides a summary of the peak runoff rates in the pre-development conditions. Post-Development Conditions The proposed site is designed to utilize the existing topography and minimize the effects on the natural hydrologic and hydraulic patterns of the existing site. The proposed project will maintain the soil type, watersheds, and design points consistent with the pre-development conditions. Please see Post- Development Drainage Map (Appendix D). The site may contain steep slopes that may require steps and/or cut ins to install the proposed solar system that will only be constructed on an as needed basis to reduce the overall ground disturbance of the site. Additional silt fencing may be required to control erosion during construction, and stabilization will be established before the completion of construction. Natural spray tack adhesives will be used for permanent measures to stabilize the site for any necessary stepping access paths or cut ins. Permanent rock berm series will also be installed as needed within naturally occurring drainage flow paths as an erosion control measure and help reduce the overall peak runoff rates for various storm events. At the end of each row, all power lines used to operate the solar panels will be distributed above ground to connect the equipment pads where the low-voltage wires will run through a Class 2 Circuit (CAV) system and the high-voltage wires will run through conduits on concrete pads. No trenching or excavating is anticipated for this project further minimizing any ground disturbance to the site. The entire site drains into the Caribbean Sea and concerns of adverse flooding are not anticipated therefore the 2022 U.S. Virgin Islands Environmental Protection Handbook (USVI EP Handbook) requirements to reduce the runoff volume for the 1-year design storm is not applicable for this project. The proposed development will utilize dense Guinea Grass (Megathyrsus maximus), maintained at a 6”- 12” height, to surround the proposed racking system (both within the aisles and underneath the panels) to create a stable ground condition similar to the existing conditions. For this hydrological analysis, a land cover of “>75% Grass Cover, Good” has been used for the developed portions of the site, while the undeveloped potions will maintain the existing land covers of “Woods/grass comb., Good”. The panels themselves, tilted at either a 10- or 20-degrees and raised 24” from the ground, are modelled as pervious since all groundcover below them will be stabilized grass to absorb runoff and gaps between PRE-DEVELOPMENT CONDITIONS (RATES) Design Point 1 Design Point 2 Design Point 3 Inflow Area 12.76 Acres 8.78 Acres 6.64 Acres Peak Design Storm Flow (cfs) Flow (cfs) Flow (cfs) 2-Year; 24-hour 27.24 18.07 15.31 10-Year; 24-hour 69.49 48.11 40.55 25-Year; 24-hour 97.68 68.38 57.54 100-Year; 24-hour 145.86 103.14 86.66 adjacent panels will allow water to drain freely. Below is a photo of a constructed solar site by VIElectron showing the dense stabilized Guinea grass in and around the solar modules. The additional amounts of impervious cover (approximately 3,450 +/- SF) from the equipment pads, above ground conduit runs, battery storage, and ground screws were accounted for and were considered paved areas for the purposes of this analysis. Additional ground cover includes the proposed access drive, which was considered gravel road. The analysis criteria used for the SCS TR-20 hydraulic analysis of the post-development conditions are as follows: • Storm Event Frequency: 2, 10, 25, and 100-year, 24-Hour Storms • Runoff Coefficients (CN) Impervious, HSG D = 98 Parked area, HSG D = 98 Artificial desert landscape, HSG D = 96 Gravel roads, HSG D = 96 >75% Grass Cover, Good, HSG D = 80 Woods/grass comb., Good, HSG D = 79 The table below provides a summary of the peak runoff rates in the post-development conditions. Peak Runoff Analysis Peak runoff was compared between the pre- and post-development conditions for each of the three (3) design points. As shown in the tables below and HydroCAD analysis (Appendix E), the small increase in impervious cover is mostly absorbed by the overall dense Guinea grass areas in and around the panels, creating a similar ground cover to the existing conditions helping to stabilize the ground and mitigate runoff. The development will generally maintain the existing grades and drainage flow patterns with minimal changes to the current topography. To further reduce the peak rate of runoff and preserve the integrity of the site from future storm event erosion, several series of permanent rock berms will be constructed where naturally occurring drainage flow paths exist on-site. The watersheds were designed to provide peak runoff rate reductions between the pre- and post- development conditions up to the 100-year design storm for flow rate to comply with the 2022 U.S. Virgin Islands Environmental Protection Handbook (USVI EP Handbook). Design Point 1 (DP1) has impervious areas from ground screws, access driveway and electrical equipment; while Design Point 2 (DP2) and 3 (DP3) have impervious areas from ground screws only. The site is volcanic HSG D soils, which provide little in the way of stormwater infiltration. Understanding the limited infiltration, the proposed rock berm series uses loose compacted crushed stone to help as a dispersion device while the rest of the disturbed areas of the watershed will feature dense Guinea grass which is intended to capture slow stormwater runoff and prevent erosion. POST-DEVELOPMENT CONDITIONS (RATES) Design Point 1 Design Point 2 Design Point 3 Inflow Area 12.76 Acres 8.78 Acres 6.64 Acres Peak Design Storm Flow (cfs) Flow (cfs) Flow (cfs) 2-Year; 24-hour 27.21 18.01 15.31 10-Year; 24-hour 66.40 46.77 39.61 25-Year; 24-hour 92.61 65.98 56.03 100-Year; 24-hour 137.71 98.91 83.98 The tables below provide a summary of the control of the peak rate of runoff between the pre- and post-development conditions. PEAK RUNOFF DESIGN POINT 1 (RATES) Pre-Development Post-Development Difference Peak Design Storm Flow (cfs) Flow (cfs) Flow (cfs) 2-Year; 24-hour 27.24 27.21 -0.03 10-Year; 24-hour 69.49 66.40 -3.09 25-Year; 24-hour 97.68 92.61 -5.07 100-Year; 24-hour 145.86 137.71 -8.15 PEAK RUNOFF DESIGN POINT 2 (RATES) Pre-Development Post-Development Difference Peak Design Storm Flow (cfs) Flow (cfs) Flow (cfs) 2-Year; 24-hour 18.07 18.01 -0.06 10-Year; 24-hour 48.11 46.77 -1.34 25-Year; 24-hour 68.38 65.98 -2.40 100-Year; 24-hour 103.14 98.91 -4.23 PEAK RUNOFF DESIGN POINT 3 (RATES) Pre-Development Post-Development Difference Peak Design Storm Flow (cfs) Flow (cfs) Flow (cfs) 2-Year; 24-hour 15.31 15.31 -0.00 10-Year; 24-hour 40.55 39.61 -0.94 25-Year; 24-hour 57.54 56.03 -1.51 100-Year; 24-hour 86.66 83.98 -2.68 Conclusion The project was designed to maintain existing natural soils, topography, and flow patterns. All existing vegetation within the project area will be ground flush with the existing grade with minimal root removal therefore leaving most soils in place and undisturbed. Limited grading is proposed which will allow for natural drainage patterns to be maintained. The proposed design has minimal impervious surfaces that are typically associated with stormwater runoff. To mitigate impacts from the development, a dense Guinea grass maintained between 6-12- inches in and around the solar field will provide permanent stabilization and slow stormwater runoff. The site will also feature several permanent rock berm series to be installed in the stormwater flow paths to slow runoff and promote infiltration with the Guinea grasses. The nature of this development does not generate stormwater pollutants typically associated with larger developments. Once constructed, the site will essentially be self-operational with limited vehicle traffic and will not use herbicides, pesticides or cleaning chemicals. Extensive perimeter erosion control measures are proposed and a detailed Stormwater Prevention Pollution Plan (SWPPP) will be implemented to prevent erosion and sediment runoff for the duration of construction until the site is permanently stabilized. In summary, the project was designed to meet the standards of the 2022 U.S. Virgin Islands Environmental Protection Handbook by providing peak rate of runoff reductions up to the 100-year design storm, while minimizing on-site ground disturbances and limiting impacts to the surrounding properties. Due to the entire site draining into the Caribbean Sea, concerns of adverse flooding are not anticipated, therefore the USVI EP Handbook requirement to reduce the volume of the 1-year design storm is not applicable for this project and is not included in this analysis. Appendix A – Rainfall Data NOAA Atlas 14, Volume 3, Version 4 Location name: Southside, US Virgin Islands, VIR* Latitude: 18.3096°, Longitude: -64.8846° Elevation: 203 ft** * source: ESRI Maps ** source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES G.M. Bonnin, D. Martin, B. Lin, T. Parzybok, M.Yekta, and D. Riley NOAA, National Weather Service, Silver Spring, Maryland PF_tabular | PF_graphical | Maps_&_aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Duration Average recurrence interval (years) 1 2 5 10 25 50 100 200 500 1000 5-min 0.270 (0.246‑0.339) 0.377 (0.323‑0.438) 0.481 (0.417‑0.547) 0.550 (0.475‑0.629) 0.635 (0.540‑0.734) 0.696 (0.584‑0.816) 0.756 (0.628‑0.900) 0.814 (0.665‑0.980) 0.891 (0.711‑1.09) 0.950 (0.743‑1.18) 10-min 0.369 (0.337‑0.464) 0.515 (0.442‑0.599) 0.657 (0.569‑0.748) 0.752 (0.649‑0.860) 0.868 (0.739‑1.00) 0.952 (0.798‑1.12) 1.03 (0.858‑1.23) 1.11 (0.909‑1.34) 1.22 (0.972‑1.49) 1.30 (1.02‑1.61) 15-min 0.474 (0.432‑0.595) 0.661 (0.567‑0.768) 0.843 (0.731‑0.959) 0.965 (0.833‑1.10) 1.11 (0.948‑1.29) 1.22 (1.02‑1.43) 1.33 (1.10‑1.58) 1.43 (1.17‑1.72) 1.56 (1.25‑1.91) 1.67 (1.30‑2.07) 30-min 0.759 (0.692‑0.953) 1.06 (0.908‑1.23) 1.35 (1.17‑1.54) 1.54 (1.33‑1.77) 1.78 (1.52‑2.06) 1.96 (1.64‑2.29) 2.12 (1.76‑2.53) 2.29 (1.87‑2.75) 2.50 (2.00‑3.06) 2.67 (2.09‑3.32) 60-min 1.13 (1.03‑1.41) 1.57 (1.35‑1.82) 2.00 (1.74‑2.28) 2.29 (1.98‑2.62) 2.64 (2.25‑3.06) 2.90 (2.43‑3.40) 3.15 (2.62‑3.75) 3.39 (2.77‑4.08) 3.71 (2.96‑4.54) 3.96 (3.10‑4.92) 2-hr 1.41 (1.32‑1.85) 2.04 (1.73‑2.41) 2.70 (2.31‑3.13) 3.16 (2.69‑3.70) 3.76 (3.13‑4.48) 4.21 (3.42‑5.12) 4.67 (3.73‑5.76) 5.12 (3.99‑6.45) 5.75 (4.34‑7.44) 6.23 (4.57‑8.25) 3-hr 1.74 (1.46‑2.07) 2.28 (1.94‑2.69) 3.03 (2.59‑3.49) 3.54 (3.02‑4.11) 4.20 (3.51‑4.97) 4.70 (3.84‑5.65) 5.21 (4.19‑6.38) 5.72 (4.51‑7.13) 6.42 (4.91‑8.19) 6.97 (5.18‑9.08) 6-hr 2.10 (1.73‑2.55) 2.78 (2.30‑3.37) 3.89 (3.23‑4.61) 4.71 (3.88‑5.62) 5.82 (4.65‑7.14) 6.70 (5.20‑8.44) 7.61 (5.74‑9.82) 8.57 (6.29‑11.2) 9.91 (6.98‑13.5) 11.0 (7.48‑15.5) 12-hr 2.45 (1.97‑3.04) 3.30 (2.66‑4.12) 4.82 (3.88‑5.88) 6.00 (4.75‑7.44) 7.67 (5.86‑9.78) 9.02 (6.66‑11.8) 10.4 (7.44‑14.1) 12.0 (8.26‑16.5) 14.1 (9.29‑20.2) 15.8 (10.0‑23.2) 24-hr 2.82 (2.35‑3.40) 3.82 (3.20‑4.61) 5.73 (4.79‑6.83) 7.30 (6.08‑8.68) 9.58 (7.88‑11.3) 11.5 (9.34‑13.6) 13.5 (10.9‑16.0) 15.7 (12.5‑18.6) 18.9 (14.8‑22.5) 21.5 (16.6‑25.6) 2-day 3.61 (3.00‑4.35) 4.92 (4.09‑5.92) 7.33 (6.10‑8.73) 9.24 (7.64‑11.0) 11.9 (9.78‑14.1) 14.1 (11.4‑16.7) 16.4 (13.2‑19.4) 18.9 (14.9‑22.4) 22.3 (17.4‑26.6) 25.0 (19.4‑29.9) 3-day 3.77 (3.11‑4.58) 5.15 (4.25‑6.24) 7.67 (6.34‑9.20) 9.65 (7.92‑11.5) 12.4 (10.1‑14.8) 14.7 (11.8‑17.5) 17.1 (13.5‑20.4) 19.6 (15.4‑23.5) 23.1 (17.9‑27.8) 25.9 (19.9‑31.2) 4-day 3.92 (3.23‑4.80) 5.37 (4.42‑6.56) 8.00 (6.58‑9.67) 10.1 (8.20‑12.1) 12.9 (10.4‑15.5) 15.3 (12.2‑18.4) 17.7 (13.9‑21.4) 20.3 (15.8‑24.5) 23.9 (18.4‑29.0) 26.8 (20.4‑32.6) 7-day 4.47 (3.64‑5.54) 6.12 (4.98‑7.57) 9.23 (7.49‑11.3) 11.7 (9.43‑14.2) 15.3 (12.1‑18.4) 18.2 (14.2‑22.0) 21.3 (16.5‑25.8) 24.6 (18.9‑29.9) 29.4 (22.2‑35.8) 33.2 (24.7‑40.7) 10-day 4.92 (4.02‑6.07) 6.72 (5.49‑8.27) 9.98 (8.12‑12.1) 12.5 (10.1‑15.1) 16.2 (12.9‑19.5) 19.1 (15.1‑23.0) 22.2 (17.4‑26.8) 25.5 (19.8‑30.8) 30.2 (23.0‑36.6) 34.0 (25.5‑41.4) 20-day 6.52 (5.45‑7.77) 8.74 (7.32‑10.4) 12.3 (10.3‑14.5) 15.0 (12.5‑17.6) 18.7 (15.4‑21.9) 21.6 (17.7‑25.3) 24.6 (20.1‑28.9) 27.7 (22.4‑32.6) 32.0 (25.5‑37.8) 35.4 (27.9‑41.9) 30-day 8.14 (6.89‑9.51) 10.8 (9.12‑12.6) 14.4 (12.2‑16.8) 17.1 (14.5‑19.8) 20.6 (17.3‑23.9) 23.4 (19.5‑27.0) 26.1 (21.7‑30.3) 28.9 (23.9‑33.6) 32.8 (26.8‑38.3) 36.1 (29.3‑42.2) 45-day 10.3 (8.86‑11.8) 13.4 (11.6‑15.3) 17.3 (14.9‑19.7) 20.1 (17.3‑22.9) 23.7 (20.3‑27.0) 26.5 (22.6‑30.2) 29.2 (24.8‑33.4) 32.0 (27.0‑36.6) 35.6 (29.8‑41.0) 38.5 (32.0‑44.4) 60-day 11.4 (9.95‑13.0) 14.8 (12.9‑16.8) 18.9 (16.5‑21.5) 22.0 (19.1‑24.8) 25.9 (22.4‑29.3) 28.9 (24.9‑32.7) 31.9 (27.2‑36.1) 34.9 (29.6‑39.6) 38.9 (32.7‑44.3) 41.9 (35.0‑48.0) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top PF graphical Appendix B – NRCS Web Soil Survey Hydrologic Soil Group—Virgin Islands of the United States (Bovoni - Expanded) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 2025000 2025200 2025400 2025600 2025800 2026000 2026200 2026400 2025000 2025200 2025400 2025600 2025800 2026000 2026200 2026400 299900 300100 300300 300500 300700 300900 301100 301300 301500 301700 301900 302100 302300 299900 300100 300300 300500 300700 300900 301100 301300 301500 301700 301900 302100 302300 18° 19' 5'' N 64° 53' 38'' W 18° 19' 5'' N 64° 52' 12'' W 18° 18' 16'' N 64° 53' 38'' W 18° 18' 16'' N 64° 52' 12'' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 20N WGS84 0 150 300 600 900 Feet 0 45 90 180 270 Meters Map Scale: 1:3,140 if printed on D landscape (34" x 22") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A A/D B B/D C C/D D Not rated or not available Soil Rating Points 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 The soil surveys that comprise your AOI were mapped at 1:12,000. 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: Virgin Islands of the United States Survey Area Data: Version 5, Sep 13, 2023 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jan 1, 2016—Feb 16, 2023 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. Hydrologic Soil Group—Virgin Islands of the United States (Bovoni - Expanded) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI CbB Cinnamon Bay loam, 0 to 5 percent slopes, occasionally flooded B 9.7 1.5% CgC Cinnamon Bay gravelly loam, 5 to 12 percent slopes, occasionally flooded A 6.5 1.0% SaA Salt flats, ponded 4.5 0.7% SBA Sandy Point and Sugar Beach soils, 0 to 2 percent slopes, frequently flooded C/D 64.5 10.1% SoA Solitude gravelly fine sandy loam, 0 to 2 percent slopes, frequently flooded A/D 37.2 5.8% SrD Southgate-Rock outcrop complex, 12 to 20 percent slopes D 9.7 1.5% SrE Southgate-Rock outcrop complex, 20 to 40 percent slopes D 110.3 17.3% SrF Southgate-Rock outcrop complex, 40 to 60 percent slopes D 79.4 12.5% SrG Southgate-Rock outcrop complex, 60 to 90 percent slopes D 16.0 2.5% Us Ustorthents 38.4 6.0% Totals for Area of Interest 637.5 100.0% Hydrologic Soil Group—Virgin Islands of the United States Bovoni - Expanded Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 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, B/D, 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 C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Hydrologic Soil Group—Virgin Islands of the United States Bovoni - Expanded Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 Appendix C – Pre-Development Watershed Map LEGEND 2A DP2 LEGEND 2A DP2 D SOIL A SOIL 3 DP3 2 DP2 1 DP1 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 DR1 PRE-DEVELOPMENT WATERSHED MAP 1 2 Appendix D – Post-Development Watershed Map D SOIL A SOIL 3 DP3 2 DP2 1 DP1 LEGEND 2A DP2 LEGEND 2A DP2 95 E. Mitchel Hammock Road Suite 200 Oviedo, FL 32765 (407) 380-1919 www.hoyletanner.com 9 PROPOSED SOLAR ENERGY FACILITY BOVONI 17 REMAINDER ESTATE BOVONI SAINT THOMAS, VI 00804 STB SOLAR LLC A VIELECTRON LLC COMPANY 5000 EST. ENIGHED, STA 4A, PMB 146 SAINT JOHN, VI 00830 DR2 POST-DEVELOPMENT WATERSHED MAP 2 2 Appendix E – HydroCAD Analysis 1 Solar Field 2 Solar Field 3 Solar Field DP1 Design Point 1 DP2 Design Point 2 DP3 Design Point 3 Routing Diagram for Pre Dev - Bovoni Prepared by Hoyle, Tanner & Associates, Printed 10/29/2025 HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Subcat Reach Pond Link Pre Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (sq-ft) CN Description (subcatchment-numbers) 71,750 96 Artifical desert landscape, HSG D (1) 11,295 89 Dirt roads, HSG D (1, 3) 745 98 Impervious area, HSG D (1) 4,425 98 Paved parking, HSG D (3) 1,139,410 79 Woods/grass comb., Good, HSG D (1, 2, 3) 1,227,625 80 TOTAL AREA Pre Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (sq-ft) Soil Group Subcatchment Numbers 0 HSG A 0 HSG B 0 HSG C 1,227,625 HSG D 1, 2, 3 0 Other 1,227,625 TOTAL AREA Type II 24-hr 2-Yr Rainfall=3.82" Pre Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=555,670 sf 0.13% Impervious Runoff Depth>1.81" Subcatchment 1: Solar Field Flow Length=910' Tc=20.7 min CN=81 Runoff=27.24 cfs 83,694 cf Runoff Area=382,660 sf 0.00% Impervious Runoff Depth>1.66" Subcatchment 2: Solar Field Flow Length=515' Tc=19.1 min CN=79 Runoff=18.07 cfs 52,997 cf Runoff Area=289,295 sf 1.53% Impervious Runoff Depth>1.66" Subcatchment 3: Solar Field Flow Length=398' Tc=15.3 min CN=79 Runoff=15.31 cfs 40,124 cf Inflow=27.24 cfs 83,694 cf Reach DP1: Design Point 1 Outflow=27.24 cfs 83,694 cf Inflow=18.07 cfs 52,997 cf Reach DP2: Design Point 2 Outflow=18.07 cfs 52,997 cf Inflow=15.31 cfs 40,124 cf Reach DP3: Design Point 3 Outflow=15.31 cfs 40,124 cf Total Runoff Area = 1,227,625 sf Runoff Volume = 176,815 cf Average Runoff Depth = 1.73" 99.58% Pervious = 1,222,455 sf 0.42% Impervious = 5,170 sf Type II 24-hr 10-Yr Rainfall=7.30" Pre Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=555,670 sf 0.13% Impervious Runoff Depth>4.73" Subcatchment 1: Solar Field Flow Length=910' Tc=20.7 min CN=81 Runoff=69.49 cfs 219,084 cf Runoff Area=382,660 sf 0.00% Impervious Runoff Depth>4.51" Subcatchment 2: Solar Field Flow Length=515' Tc=19.1 min CN=79 Runoff=48.11 cfs 143,946 cf Runoff Area=289,295 sf 1.53% Impervious Runoff Depth>4.52" Subcatchment 3: Solar Field Flow Length=398' Tc=15.3 min CN=79 Runoff=40.55 cfs 108,954 cf Inflow=69.49 cfs 219,084 cf Reach DP1: Design Point 1 Outflow=69.49 cfs 219,084 cf Inflow=48.11 cfs 143,946 cf Reach DP2: Design Point 2 Outflow=48.11 cfs 143,946 cf Inflow=40.55 cfs 108,954 cf Reach DP3: Design Point 3 Outflow=40.55 cfs 108,954 cf Total Runoff Area = 1,227,625 sf Runoff Volume = 471,984 cf Average Runoff Depth = 4.61" 99.58% Pervious = 1,222,455 sf 0.42% Impervious = 5,170 sf Type II 24-hr 10-Yr Rainfall=7.30" Pre Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1: Solar Field Runoff = 69.49 cfs @ 12.13 hrs, Volume= 219,084 cf, Depth> 4.73" Routed to Reach DP1 : Design Point 1 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=7.30" Area (sf) CN Description * 745 98 Impervious area, HSG D 71,750 96 Artifical desert landscape, HSG D * 9,685 89 Dirt roads, HSG D 473,490 79 Woods/grass comb., Good, HSG D 555,670 81 Weighted Average 554,925 99.87% Pervious Area 745 0.13% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 15.9 300 0.3067 0.31 Sheet Flow, Woods Woods: Light underbrush n= 0.400 P2= 3.82" 4.8 610 0.1771 2.10 Shallow Concentrated Flow, Woods Woodland Kv= 5.0 fps 20.7 910 Total Summary for Subcatchment 2: Solar Field Runoff = 48.11 cfs @ 12.11 hrs, Volume= 143,946 cf, Depth> 4.51" Routed to Reach DP2 : Design Point 2 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=7.30" Area (sf) CN Description 382,660 79 Woods/grass comb., Good, HSG D 382,660 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 18.0 300 0.2233 0.28 Sheet Flow, Woods Woods: Light underbrush n= 0.400 P2= 3.82" 1.1 215 0.4186 3.23 Shallow Concentrated Flow, Woods Woodland Kv= 5.0 fps 19.1 515 Total Type II 24-hr 10-Yr Rainfall=7.30" Pre Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 3: Solar Field Runoff = 40.55 cfs @ 12.07 hrs, Volume= 108,954 cf, Depth> 4.52" Routed to Reach DP3 : Design Point 3 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=7.30" Area (sf) CN Description 4,425 98 Paved parking, HSG D * 1,610 89 Dirt roads, HSG D 283,260 79 Woods/grass comb., Good, HSG D 289,295 79 Weighted Average 284,870 98.47% Pervious Area 4,425 1.53% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.7 300 0.3733 0.34 Sheet Flow, Woods Woods: Light underbrush n= 0.400 P2= 3.82" 0.6 98 0.2857 2.67 Shallow Concentrated Flow, Woods Woodland Kv= 5.0 fps 15.3 398 Total Summary for Reach DP1: Design Point 1 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 555,670 sf, 0.13% Impervious, Inflow Depth > 4.73" for 10-Yr event Inflow = 69.49 cfs @ 12.13 hrs, Volume= 219,084 cf Outflow = 69.49 cfs @ 12.13 hrs, Volume= 219,084 cf, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Reach DP2: Design Point 2 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 382,660 sf, 0.00% Impervious, Inflow Depth > 4.51" for 10-Yr event Inflow = 48.11 cfs @ 12.11 hrs, Volume= 143,946 cf Outflow = 48.11 cfs @ 12.11 hrs, Volume= 143,946 cf, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=7.30" Pre Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Summary for Reach DP3: Design Point 3 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 289,295 sf, 1.53% Impervious, Inflow Depth > 4.52" for 10-Yr event Inflow = 40.55 cfs @ 12.07 hrs, Volume= 108,954 cf Outflow = 40.55 cfs @ 12.07 hrs, Volume= 108,954 cf, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 25-Yr Rainfall=9.58" Pre Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=555,670 sf 0.13% Impervious Runoff Depth>6.77" Subcatchment 1: Solar Field Flow Length=910' Tc=20.7 min CN=81 Runoff=97.68 cfs 313,322 cf Runoff Area=382,660 sf 0.00% Impervious Runoff Depth>6.53" Subcatchment 2: Solar Field Flow Length=515' Tc=19.1 min CN=79 Runoff=68.38 cfs 208,085 cf Runoff Area=289,295 sf 1.53% Impervious Runoff Depth>6.53" Subcatchment 3: Solar Field Flow Length=398' Tc=15.3 min CN=79 Runoff=57.54 cfs 157,487 cf Inflow=97.68 cfs 313,322 cf Reach DP1: Design Point 1 Outflow=97.68 cfs 313,322 cf Inflow=68.38 cfs 208,085 cf Reach DP2: Design Point 2 Outflow=68.38 cfs 208,085 cf Inflow=57.54 cfs 157,487 cf Reach DP3: Design Point 3 Outflow=57.54 cfs 157,487 cf Total Runoff Area = 1,227,625 sf Runoff Volume = 678,893 cf Average Runoff Depth = 6.64" 99.58% Pervious = 1,222,455 sf 0.42% Impervious = 5,170 sf Type II 24-hr 100-Yr Rainfall=13.50" Pre Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=555,670 sf 0.13% Impervious Runoff Depth>10.32" Subcatchment 1: Solar Field Flow Length=910' Tc=20.7 min CN=81 Runoff=145.86 cfs 477,982 cf Runoff Area=382,660 sf 0.00% Impervious Runoff Depth>10.06" Subcatchment 2: Solar Field Flow Length=515' Tc=19.1 min CN=79 Runoff=103.14 cfs 320,940 cf Runoff Area=289,295 sf 1.53% Impervious Runoff Depth>10.07" Subcatchment 3: Solar Field Flow Length=398' Tc=15.3 min CN=79 Runoff=86.66 cfs 242,841 cf Inflow=145.86 cfs 477,982 cf Reach DP1: Design Point 1 Outflow=145.86 cfs 477,982 cf Inflow=103.14 cfs 320,940 cf Reach DP2: Design Point 2 Outflow=103.14 cfs 320,940 cf Inflow=86.66 cfs 242,841 cf Reach DP3: Design Point 3 Outflow=86.66 cfs 242,841 cf Total Runoff Area = 1,227,625 sf Runoff Volume = 1,041,763 cf Average Runoff Depth = 10.18" 99.58% Pervious = 1,222,455 sf 0.42% Impervious = 5,170 sf 1 Solar Field 2 Solar Field 3 Solar Field DP1 Design Point 1 DP2 Design Point 2 DP3 Design Point 3 1P Rock Berm 2P Rock Berm 3P Rock Berm Routing Diagram for Post Dev - Bovoni Prepared by Hoyle, Tanner & Associates, Printed 10/29/2025 HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Subcat Reach Pond Link Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (sq-ft) CN Description (subcatchment-numbers) 970,475 80 >75% Grass cover, Good, HSG D (1, 2, 3) 71,750 96 Artifical desert landscape, HSG D (1) 41,125 96 Gravel surface, HSG D (1) 4,195 98 Impervious area, HSG D (1) 4,425 98 Paved parking, HSG D (3) 135,655 79 Woods/grass comb., Good, HSG D (1, 2, 3) 1,227,625 81 TOTAL AREA Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (sq-ft) Soil Group Subcatchment Numbers 0 HSG A 0 HSG B 0 HSG C 1,227,625 HSG D 1, 2, 3 0 Other 1,227,625 TOTAL AREA Type II 24-hr 2-Yr Rainfall=3.82" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=555,670 sf 0.75% Impervious Runoff Depth>1.96" Subcatchment 1: Solar Field Flow Length=910' Tc=23.9 min CN=83 Runoff=27.13 cfs 90,710 cf Runoff Area=382,660 sf 0.00% Impervious Runoff Depth>1.73" Subcatchment 2: Solar Field Flow Length=515' Tc=20.9 min CN=80 Runoff=17.91 cfs 55,267 cf Runoff Area=289,295 sf 1.53% Impervious Runoff Depth>1.74" Subcatchment 3: Solar Field Flow Length=398' Tc=16.7 min CN=80 Runoff=15.33 cfs 41,849 cf Inflow=27.21 cfs 89,323 cf Reach DP1: Design Point 1 Outflow=27.21 cfs 89,323 cf Inflow=18.01 cfs 54,852 cf Reach DP2: Design Point 2 Outflow=18.01 cfs 54,852 cf Inflow=15.31 cfs 40,977 cf Reach DP3: Design Point 3 Outflow=15.31 cfs 40,977 cf Peak Elev=41.30' Storage=1,272 cf Inflow=27.13 cfs 90,710 cf Pond 1P: Rock Berm Discarded=0.00 cfs 137 cf Primary=27.21 cfs 89,323 cf Outflow=27.21 cfs 89,460 cf Peak Elev=93.20' Storage=368 cf Inflow=17.91 cfs 55,267 cf Pond 2P: Rock Berm Discarded=0.00 cfs 38 cf Primary=18.01 cfs 54,852 cf Outflow=18.01 cfs 54,890 cf Peak Elev=97.16' Storage=796 cf Inflow=15.33 cfs 41,849 cf Pond 3P: Rock Berm Discarded=0.00 cfs 75 cf Primary=15.31 cfs 40,977 cf Outflow=15.31 cfs 41,051 cf Total Runoff Area = 1,227,625 sf Runoff Volume = 187,826 cf Average Runoff Depth = 1.84" 99.30% Pervious = 1,219,005 sf 0.70% Impervious = 8,620 sf Type II 24-hr 10-Yr Rainfall=7.30" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=555,670 sf 0.75% Impervious Runoff Depth>4.95" Subcatchment 1: Solar Field Flow Length=910' Tc=23.9 min CN=83 Runoff=66.59 cfs 229,122 cf Runoff Area=382,660 sf 0.00% Impervious Runoff Depth>4.62" Subcatchment 2: Solar Field Flow Length=515' Tc=20.9 min CN=80 Runoff=46.69 cfs 147,354 cf Runoff Area=289,295 sf 1.53% Impervious Runoff Depth>4.63" Subcatchment 3: Solar Field Flow Length=398' Tc=16.7 min CN=80 Runoff=39.73 cfs 111,547 cf Inflow=66.40 cfs 227,696 cf Reach DP1: Design Point 1 Outflow=66.40 cfs 227,696 cf Inflow=46.77 cfs 146,928 cf Reach DP2: Design Point 2 Outflow=46.77 cfs 146,928 cf Inflow=39.61 cfs 110,641 cf Reach DP3: Design Point 3 Outflow=39.61 cfs 110,641 cf Peak Elev=41.61' Storage=1,272 cf Inflow=66.59 cfs 229,122 cf Pond 1P: Rock Berm Discarded=0.00 cfs 176 cf Primary=66.40 cfs 227,696 cf Outflow=66.40 cfs 227,872 cf Peak Elev=93.47' Storage=368 cf Inflow=46.69 cfs 147,354 cf Pond 2P: Rock Berm Discarded=0.00 cfs 49 cf Primary=46.77 cfs 146,928 cf Outflow=46.77 cfs 146,977 cf Peak Elev=97.42' Storage=796 cf Inflow=39.73 cfs 111,547 cf Pond 3P: Rock Berm Discarded=0.00 cfs 98 cf Primary=39.61 cfs 110,641 cf Outflow=39.62 cfs 110,739 cf Total Runoff Area = 1,227,625 sf Runoff Volume = 488,023 cf Average Runoff Depth = 4.77" 99.30% Pervious = 1,219,005 sf 0.70% Impervious = 8,620 sf Type II 24-hr 10-Yr Rainfall=7.30" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1: Solar Field Runoff = 66.59 cfs @ 12.16 hrs, Volume= 229,122 cf, Depth> 4.95" Routed to Pond 1P : Rock Berm Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=7.30" Area (sf) CN Description * 4,195 98 Impervious area, HSG D 71,750 96 Artifical desert landscape, HSG D 41,125 96 Gravel surface, HSG D 27,000 79 Woods/grass comb., Good, HSG D 411,600 80 >75% Grass cover, Good, HSG D 555,670 83 Weighted Average 551,475 99.25% Pervious Area 4,195 0.75% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 17.5 300 0.3067 0.29 Sheet Flow, Dense Grass 6"-12" n= 0.450 P2= 3.82" 2.4 405 0.2519 2.76 Shallow Concentrated Flow, Dense Grass 6"-12" Kv= 5.5 fps 4.0 205 0.0293 0.86 Shallow Concentrated Flow, Woods Woodland Kv= 5.0 fps 23.9 910 Total Summary for Subcatchment 2: Solar Field Runoff = 46.69 cfs @ 12.13 hrs, Volume= 147,354 cf, Depth> 4.62" Routed to Pond 2P : Rock Berm Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=7.30" Area (sf) CN Description 41,715 79 Woods/grass comb., Good, HSG D 340,945 80 >75% Grass cover, Good, HSG D 382,660 80 Weighted Average 382,660 100.00% Pervious Area Type II 24-hr 10-Yr Rainfall=7.30" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 19.8 300 0.2233 0.25 Sheet Flow, Dense Grass 6"-12" n= 0.450 P2= 3.82" 0.9 185 0.4000 3.48 Shallow Concentrated Flow, Dense Grass 6"-12" Kv= 5.5 fps 0.2 30 0.4000 3.16 Shallow Concentrated Flow, Woods Woodland Kv= 5.0 fps 20.9 515 Total Summary for Subcatchment 3: Solar Field Runoff = 39.73 cfs @ 12.09 hrs, Volume= 111,547 cf, Depth> 4.63" Routed to Pond 3P : Rock Berm Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=7.30" Area (sf) CN Description 4,425 98 Paved parking, HSG D 217,930 80 >75% Grass cover, Good, HSG D 66,940 79 Woods/grass comb., Good, HSG D 289,295 80 Weighted Average 284,870 98.47% Pervious Area 4,425 1.53% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.1 300 0.3733 0.31 Sheet Flow, Dense Grass 6"-12" n= 0.450 P2= 3.82" 0.4 68 0.2353 2.67 Shallow Concentrated Flow, Dense Grass 6"-12" Kv= 5.5 fps 0.2 30 0.4000 3.16 Shallow Concentrated Flow, Woods Woodland Kv= 5.0 fps 16.7 398 Total Summary for Reach DP1: Design Point 1 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 555,670 sf, 0.75% Impervious, Inflow Depth > 4.92" for 10-Yr event Inflow = 66.40 cfs @ 12.17 hrs, Volume= 227,696 cf Outflow = 66.40 cfs @ 12.17 hrs, Volume= 227,696 cf, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Yr Rainfall=7.30" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Summary for Reach DP2: Design Point 2 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 382,660 sf, 0.00% Impervious, Inflow Depth > 4.61" for 10-Yr event Inflow = 46.77 cfs @ 12.13 hrs, Volume= 146,928 cf Outflow = 46.77 cfs @ 12.13 hrs, Volume= 146,928 cf, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Reach DP3: Design Point 3 [40] Hint: Not Described (Outflow=Inflow) Inflow Area = 289,295 sf, 1.53% Impervious, Inflow Depth > 4.59" for 10-Yr event Inflow = 39.61 cfs @ 12.09 hrs, Volume= 110,641 cf Outflow = 39.61 cfs @ 12.09 hrs, Volume= 110,641 cf, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Pond 1P: Rock Berm [92] Warning: Device #2 is above defined storage [92] Warning: Device #3 is above defined storage [93] Warning: Storage range exceeded by 1.61' [85] Warning: Oscillations may require smaller dt or Finer Routing (severity=103) Inflow Area = 555,670 sf, 0.75% Impervious, Inflow Depth > 4.95" for 10-Yr event Inflow = 66.59 cfs @ 12.16 hrs, Volume= 229,122 cf Outflow = 66.40 cfs @ 12.17 hrs, Volume= 227,872 cf, Atten= 0%, Lag= 0.2 min Discarded = 0.00 cfs @ 6.95 hrs, Volume= 176 cf Primary = 66.40 cfs @ 12.17 hrs, Volume= 227,696 cf Routed to Reach DP1 : Design Point 1 Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 41.61' @ 12.17 hrs Surf.Area= 1,500 sf Storage= 1,272 cf Plug-Flow detention time= 4.4 min calculated for 227,113 cf (99% of inflow) Center-of-Mass det. time= 2.3 min ( 776.8 - 774.5 ) Volume Invert Avail.Storage Storage Description #1 36.00' 1,272 cf Custom Stage Data (Prismatic) Listed below (Recalc) 3,180 cf Overall x 40.0% Voids Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 36.00 260 0 0 38.00 710 970 970 40.00 1,500 2,210 3,180 Type II 24-hr 10-Yr Rainfall=7.30" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Device Routing Invert Outlet Devices #1 Discarded 36.00' 0.100 in/hr Exfiltration over Surface area #2 Primary 40.00' 40.00' long x 5.00' breadth x 4.00' high Rock Fill Rock Diam.= 6.000", S.D.= 2.000", Voids= 40.0% #3 Primary 41.00' 40.0' long + 0.3 '/' SideZ x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.00 cfs @ 6.95 hrs HW=40.07' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=65.83 cfs @ 12.17 hrs HW=41.61' (Free Discharge) 2=Rock Fill (Rockfill Controls 14.83 cfs @ 0.46 fps) 3=Broad-Crested Rectangular Weir (Weir Controls 51.00 cfs @ 2.10 fps) Summary for Pond 2P: Rock Berm [92] Warning: Device #2 is above defined storage [92] Warning: Device #3 is above defined storage [93] Warning: Storage range exceeded by 1.47' [88] Warning: Qout>Qin may require smaller dt or Finer Routing Inflow Area = 382,660 sf, 0.00% Impervious, Inflow Depth > 4.62" for 10-Yr event Inflow = 46.69 cfs @ 12.13 hrs, Volume= 147,354 cf Outflow = 46.77 cfs @ 12.13 hrs, Volume= 146,977 cf, Atten= 0%, Lag= 0.1 min Discarded = 0.00 cfs @ 7.00 hrs, Volume= 49 cf Primary = 46.77 cfs @ 12.13 hrs, Volume= 146,928 cf Routed to Reach DP2 : Design Point 2 Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 93.47' @ 12.13 hrs Surf.Area= 430 sf Storage= 368 cf Plug-Flow detention time= 1.9 min calculated for 146,489 cf (99% of inflow) Center-of-Mass det. time= 0.9 min ( 779.3 - 778.4 ) Volume Invert Avail.Storage Storage Description #1 88.00' 368 cf Custom Stage Data (Prismatic) Listed below (Recalc) 920 cf Overall x 40.0% Voids Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 88.00 60 0 0 90.00 215 275 275 92.00 430 645 920 Device Routing Invert Outlet Devices #1 Discarded 88.00' 0.100 in/hr Exfiltration over Surface area #2 Primary 92.00' 40.00' long x 5.00' breadth x 4.00' high Rock Fill Rock Diam.= 6.000", S.D.= 2.000", Voids= 40.0% Type II 24-hr 10-Yr Rainfall=7.30" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC #3 Primary 93.00' 40.0' long + 0.3 '/' SideZ x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.00 cfs @ 7.00 hrs HW=92.03' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=46.09 cfs @ 12.13 hrs HW=93.47' (Free Discharge) 2=Rock Fill (Rockfill Controls 12.98 cfs @ 0.44 fps) 3=Broad-Crested Rectangular Weir (Weir Controls 33.11 cfs @ 1.76 fps) Summary for Pond 3P: Rock Berm [92] Warning: Device #2 is above defined storage [92] Warning: Device #3 is above defined storage [93] Warning: Storage range exceeded by 1.42' [85] Warning: Oscillations may require smaller dt or Finer Routing (severity=96) Inflow Area = 289,295 sf, 1.53% Impervious, Inflow Depth > 4.63" for 10-Yr event Inflow = 39.73 cfs @ 12.09 hrs, Volume= 111,547 cf Outflow = 39.62 cfs @ 12.09 hrs, Volume= 110,739 cf, Atten= 0%, Lag= 0.0 min Discarded = 0.00 cfs @ 7.85 hrs, Volume= 98 cf Primary = 39.61 cfs @ 12.09 hrs, Volume= 110,641 cf Routed to Reach DP3 : Design Point 3 Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 97.42' @ 12.09 hrs Surf.Area= 880 sf Storage= 796 cf Plug-Flow detention time= 5.3 min calculated for 110,371 cf (99% of inflow) Center-of-Mass det. time= 2.5 min ( 777.5 - 775.0 ) Volume Invert Avail.Storage Storage Description #1 92.00' 796 cf Custom Stage Data (Prismatic) Listed below (Recalc) 1,990 cf Overall x 40.0% Voids Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 92.00 150 0 0 94.00 480 630 630 96.00 880 1,360 1,990 Device Routing Invert Outlet Devices #1 Discarded 92.00' 0.100 in/hr Exfiltration over Surface area #2 Primary 96.00' 40.00' long x 5.00' breadth x 4.00' high Rock Fill Rock Diam.= 6.000", S.D.= 2.000", Voids= 40.0% #3 Primary 97.00' 40.0' long + 0.3 '/' SideZ x 5.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 Type II 24-hr 10-Yr Rainfall=7.30" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Discarded OutFlow Max=0.00 cfs @ 7.85 hrs HW=96.13' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=38.93 cfs @ 12.09 hrs HW=97.41' (Free Discharge) 2=Rock Fill (Rockfill Controls 12.24 cfs @ 0.43 fps) 3=Broad-Crested Rectangular Weir (Weir Controls 26.69 cfs @ 1.61 fps) Type II 24-hr 25-Yr Rainfall=9.58" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=555,670 sf 0.75% Impervious Runoff Depth>7.00" Subcatchment 1: Solar Field Flow Length=910' Tc=23.9 min CN=83 Runoff=92.66 cfs 324,167 cf Runoff Area=382,660 sf 0.00% Impervious Runoff Depth>6.64" Subcatchment 2: Solar Field Flow Length=515' Tc=20.9 min CN=80 Runoff=66.01 cfs 211,881 cf Runoff Area=289,295 sf 1.53% Impervious Runoff Depth>6.65" Subcatchment 3: Solar Field Flow Length=398' Tc=16.7 min CN=80 Runoff=56.07 cfs 160,372 cf Inflow=92.61 cfs 322,716 cf Reach DP1: Design Point 1 Outflow=92.61 cfs 322,716 cf Inflow=65.98 cfs 211,464 cf Reach DP2: Design Point 2 Outflow=65.98 cfs 211,464 cf Inflow=56.03 cfs 159,467 cf Reach DP3: Design Point 3 Outflow=56.03 cfs 159,467 cf Peak Elev=41.79' Storage=1,272 cf Inflow=92.66 cfs 324,167 cf Pond 1P: Rock Berm Discarded=0.00 cfs 183 cf Primary=92.61 cfs 322,716 cf Outflow=92.61 cfs 322,899 cf Peak Elev=93.61' Storage=368 cf Inflow=66.01 cfs 211,881 cf Pond 2P: Rock Berm Discarded=0.00 cfs 53 cf Primary=65.98 cfs 211,464 cf Outflow=65.98 cfs 211,517 cf Peak Elev=97.54' Storage=796 cf Inflow=56.07 cfs 160,372 cf Pond 3P: Rock Berm Discarded=0.00 cfs 105 cf Primary=56.03 cfs 159,467 cf Outflow=56.03 cfs 159,573 cf Total Runoff Area = 1,227,625 sf Runoff Volume = 696,420 cf Average Runoff Depth = 6.81" 99.30% Pervious = 1,219,005 sf 0.70% Impervious = 8,620 sf Type II 24-hr 100-Yr Rainfall=13.50" Post Dev - Bovoni Printed 10/29/2025 Prepared by Hoyle, Tanner & Associates HydroCAD® 10.20-5c s/n 00471 © 2023 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=555,670 sf 0.75% Impervious Runoff Depth>10.57" Subcatchment 1: Solar Field Flow Length=910' Tc=23.9 min CN=83 Runoff=137.10 cfs 489,372 cf Runoff Area=382,660 sf 0.00% Impervious Runoff Depth>10.19" Subcatchment 2: Solar Field Flow Length=515' Tc=20.9 min CN=80 Runoff=99.08 cfs 325,011 cf Runoff Area=289,295 sf 1.53% Impervious Runoff Depth>10.20" Subcatchment 3: Solar Field Flow Length=398' Tc=16.7 min CN=80 Runoff=84.02 cfs 245,936 cf Inflow=137.71 cfs 487,854 cf Reach DP1: Design Point 1 Outflow=137.71 cfs 487,854 cf Inflow=98.91 cfs 324,616 cf Reach DP2: Design Point 2 Outflow=98.91 cfs 324,616 cf Inflow=83.98 cfs 245,027 cf Reach DP3: Design Point 3 Outflow=83.98 cfs 245,027 cf Peak Elev=42.05' Storage=1,272 cf Inflow=137.10 cfs 489,372 cf Pond 1P: Rock Berm Discarded=0.00 cfs 186 cf Primary=137.71 cfs 487,854 cf Outflow=137.71 cfs 488,040 cf Peak Elev=93.83' Storage=368 cf Inflow=99.08 cfs 325,011 cf Pond 2P: Rock Berm Discarded=0.00 cfs 54 cf Primary=98.91 cfs 324,616 cf Outflow=98.92 cfs 324,669 cf Peak Elev=97.73' Storage=796 cf Inflow=84.02 cfs 245,936 cf Pond 3P: Rock Berm Discarded=0.00 cfs 109 cf Primary=83.98 cfs 245,027 cf Outflow=83.99 cfs 245,136 cf Total Runoff Area = 1,227,625 sf Runoff Volume = 1,060,320 cf Average Runoff Depth = 10.36" 99.30% Pervious = 1,219,005 sf 0.70% Impervious = 8,620 sf