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Home My WebLink AboutJerry Smith SWPPP STORMWATER POLLUTION PREVENTION PLAN for CONSTRUCTION ACTIVITIES at JERRY SMITH BATTERY ENERGY STORAGE SYSTEM TOWN OF LANSING Prepared for JERRY SMITH LLC C/O NEXAMP, LLC 101 SUMMER STREET, SECOND FLOOR BOSTON MA, 02110 Prepared by The Environmental Design Partnership,LLP 900 Route 146 Clifton Park,NY 12065 Telephone: (518)371-7621 Facsimile: (518) 371-9540 JUNE 2026 NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM Table of Contents Section 1 Written Stormwater Pollution Prevention Plan I. Scope IL Site Description III. Controls IV. Compliance with Federal,State,and Local Regulations V. Maintenance/Inspection Procedures During Construction VI. Long Term Operation and Maintenance Procedures VII. Spill Prevention Control and Countermeasures(SPCC)Plan VIIL Control of Allowable Non-Stormwater Discharges IX Certification and Notification Section 2• Erosion and Sediment Control Plan Site Map and General Location Map Section 3• NYS Department of Environmental Conservation Notice of Intent(NOI) NYS Department of Environmental Conservation NOI Acknowledgement Letter NYS Department of Environmental Conservation MS4 SWPPP Acceptance Form Section 4• NYS Department of Environmental Conservation SPDES General Permit Section 5• NOI Permitee's Certification (Form 1) Contractor's/Subcontractor's Certification Log (Form 2) Contractor's Certification for each contractor listed on Form 2 (Form 3) Inspection Report(Form 4) Modification Report(Form 5) Record of Stabilization and Construction Activities Report(Form 6) Record of Temporary Erosion and Sediment Control Practices (Form 6A) Project Rainfall Log (Form 7) Final Stabilization/Termination Checklist(Form 8) Section 6• Supplemental Information —Stormwater Management Report Section 7• Completed Inspection Reports NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM SECTION 1 Written Stormwater Pollution Prevention Plan JERRY SMITH BATTERY ENERGY STORAGE SYSTEM I. SCOPE A. PURPOSE: JERRY SMITH LLC intends to implement the appropriate Stormwater Pollution Prevention Plan measures in accordance with the SPDES general permit governing stormwater discharges during construction, and in accordance with erosion control practices. This section provides a descriptive explanation of the means by which JERRY SMITH LLC will comply with the National Stormwater Pollution Prevention Program. B. NPDES GENERAL PERMITS FOR STORMWATER DISCHARGE FROM CONSTRUCTION SITES: Regulations promulgated by the New York State Department of Environmental Conservation (NYSDEC) regulate the discharge of storm water from construction activities on sites where one (1) or more acres of soil is disturbed. One of the ways to comply with these regulations for affected sites is to request coverage under the General Permit for Construction Activities. (Copy enclosed herewith) In order to be authorized to discharge under the General Permit, a Stormwater Pollution Prevention Plan(SWPPP) for the site must be prepared in accordance with all applicable requirements of this permit and followed during the construction activities. If the construction activity is not subject to the requirements of a regulated, traditional land use control MS4 a Notice of Intent (NOI) form must be completed and received by the New York State Department of Environmental Conservation at least 5-days prior to any earth-disturbing activities. If the construction activity is subject to the requirements of a regulated, traditional land use control MS4, then the owner/operator must have its SWPPP reviewed and accepted by the MS4 prior to submitting the NOI to the Department. The owner/operator shall have the "MS4 SWPPP Acceptance" form signed and then submit that form along with the NOI to the Department. C. RESPONSIBILITIES OF CONTRACTOR REGARDING THE GENERAL PERMIT: The CONTRACTOR shall manage the discharge of stormwater from the site in accordance with the SPDES General Permit for Construction Activities conditions and the following provisions of this section of the specifications. The CONTRACTOR shall be responsible for conducting the stormwater management practices in accordance with the permit. The CONTRACTOR shall be responsible for providing qualified inspectors to conduct the inspections required by the SWPPP. The CONTRACTOR shall be responsible for any enforcement action taken or imposed by federal, state, or local agencies, including the cost of fines, construction delays, and remedial actions resulting from the CONTRACTOR'S failure to comply with the permit provisions. It shall be the responsibility of the CONTRACTOR to make any changes to the SWPPP necessary when the CONTRACTOR or any of his subcontractors elects to use borrow or fill or material storage sites, either contiguous to or remote from the construction site, when such sites are used solely for this construction site. Such sites are considered to be part of the construction site covered by the permit and this SWPPP. Off-site borrow, fill, or material storage sites which are used for multiple construction projects are not subject to this requirement, unless specifically required by state or local jurisdictional entity regulations. The CONTRACTOR should consider this requirement in negotiating with earthwork subcontractors,since the choice of an off-site borrow,fill,or material storage site JUNE impact their duty to implement, make changes to, and perform inspections required by the SWPPP for the site. D. NOTICE OF INTENT: The NOI Permittee petitions the New York State Department of Environmental Conservation for the stormwater discharges during construction at this site to be covered by the SPDES General Permit for Construction Activity for the State of New York. A Notice of Intent(NOI) (using the form required by the NYSDEC) to be covered under this permit is hereby filed. An Erosion and Sediment Control Plan has been prepared and is attached herewith. E. CONTRACTOR RESPONSIBILITIES: The SWPPP and associated Erosion and Sediment Control Plans represent the MINIMUM erosion and sediment control measures that will be required to protect the site during construction. JERRY SMITH LLC and the CONTRACTOR understand that additional erosion and sediment control measures will be necessary during construction. It will be the responsibility of the CONTRACTOR to implement additional erosion and sediment control measures as necessary to protect the site NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 1 during construction. JERRY SMITH LLC and the CONTRACTOR shall designate a Project Manager prior to commencing construction. The Project Manager will ensure that all construction managers and sub-contractors are appropriately assigned and understand the importance of the following topics: • Erosion and Sedimentation Control for Water Quality Protection • Implementation of the Erosion and Sedimentation Control Plan • The Importance to Proper Installation of Erosion and Sedimentation Control Measures • Regular Inspection by qualified personnel of Erosion and Sedimentation Control Measures • Diligent Maintenance of Erosion and Sedimentation Control Measures • Contemporaneous preparation of accurate and complete records regarding inspection and maintenance of Erosion and Sedimentation Control Measures • Record Keeping for Inspections and Maintenance activities F. REQUIREMENTS FOR THE CONTRACTOR AND SUBCONTRACTOR(S): The SWPPP Ledger shall provide a "Contractor's Certification Log" (Form 2), identifying the Company Name, Business Address and Telephone Number along with the Responsible Person for the CONTRACTOR and all subcontractors' who will implement the measures identified in the SWPPP. Each of the entities identified on Form 2 shall sign a "Contractor's Certification" (Form 3), verifying they have been instructed and fully understand the requirements of the New York State Department of Environmental Conservation and SWPPP. This certification must be signed,by a fully qualified individual on behalf of each entity,prior to the beginning of any construction activities and shall be filed in the project's SWPPP Ledger. Additionally, the "Trained Contractor"must be identified on Form 3 and his/her credentials should be kept on- site in the SWPPP ledger. G. STORMWATER POLLUTION PREVENTION PROGRAM LOCATION REQUIREMENTS: The SWPPP Ledger is meant to be a working document that shall be maintained at the site of the Construction Activities at all times throughout the project, shall be readily available upon request by the NOI Permittee's personnel or New York State Department of Environmental Conservation or any other agency with regulatory authority over stormwater issues, and shall be kept on-site until the site complies with the Final Stabilization section of this document. Refer to Part VII., F., Duty to Provide Information, of the General Permit for additional public viewing requirements. H. SWPPP LEDGER: The SWPPP Ledger shall be a 3-ring Binder,tabbed and indexed for the following sections: SECTION 1: o Written SWPPP SECTION 2: o Site Map and General Location Map o Erosion and Sediment Control Plan(s) SECTION 3: o New York State Notice of Intent o New York State NOI Acknowledgement Letter o New York State MS4 SWPPP Acceptance Form NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 2 SECTION 4: o New York State SPDES General Permit SECTION 5: o NOI Permittee's Certification(Form 1) o Contractor's/Subcontractor's Certification Log(Form 2) o Contractor's Certification for each contractor listed on Form 2(Form 3) o Inspection Report(Form 4) o Modification Report(Form 5) o Record of Stabilization and Construction Activities Report(Form 6) o Record of Temporary Erosion and Sediment Control Practices(Form 6A) o Project Rainfall Log(Form 7) o Final Stabilization/Termination Checklist(Form 8) SECTION 6: o Supplemental Information —Stormwater Management Report SECTION 7: o Completed Inspection Forms The Project Manager must review and evaluate for compliance the SWPPP Ledger at each Project Review meeting. All Inspection and Maintenance Forms(Forms 4- 7)will be initialed by the Project Manager at each reporting interval. I. INSPECTIONS AND RECORD KEEPING: Inspections are required at least weekly by a "Qualified Inspector". Sites that have a waiver to disturb greater than five(5)acres require two(2)inspections every seven (7) days with at least two (2) days between inspections. Inspections shall continue until the site complies with the "Final Stabilization" section of this document and a Notice of Termination (NOT) has been filed with the NYSDEC. Each inspection must be followed up by a report documenting the inspector's findings and request the required maintenance and/or repair for the erosion and sedimentation control measures. The inspector shall notify the Project Manager within one day of the inspection of any deficiencies. Within one day of this notification the Project Manager must commence with corrective measures. It is imperative that the Project Manager documents the Inspection and Maintenance of all erosion and sedimentation control measures as soon as possible after the inspection and/or maintenance is completed. These records are used to prove that the required inspection and maintenance were performed and shall be placed in the SWPPP Ledger. In addition to inspection and maintenance reports,records should be kept of the Construction Activities that occur on the site. The Project Sponsor shall retain copies of the SWPPP,all reports and data for a minimum of five(5)years after the project is complete. The following list identifies the required Inspection and Maintenance documentation that must be maintained by the Project Manager under this SWPPP. • Form 4 Inspection Report for SWPPP • Form 5 Requested Changes to the SWPPP(Modification Report) • Form 6 Record of Stabilization and Construction Activities • Form 6A Record of Temporary Erosion and Sediment Control Practices • Form 7 Project Rainfall Log J. SWPPP MODIFICATIONS: The inspection report should also identify if any revisions to the SWPPP are warranted due to unexpected conditions. The SWPPP is meant to be a dynamic working guide that is to be kept current and amended whenever the design,construction, operation, or maintenance of the site changes in a way which significantly affects the potential for the discharge of pollutants or when the plan proves to be ineffective in eliminating or significantly minimizing pollutant discharges.Any such changes to the SWPPP must be made in writing on the Modification Report Form (Form 5) within 7 days of the date such modification or amendment is made. The CONTRACTOR'S failure to monitor or report deficiencies to the NOI Permittee will NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 3 result in the CONTRACTOR being liable for fines and construction delays resulting from any federal, state, or local agency enforcement action. K. FINAL STABILIZATION AND TERMINATION OF PERMIT COVERAGE: The site will be considered finally stabilized when all soil disturbing activities have been completed and a uniform perennial vegetative cover for the unpaved areas and areas not covered by permanent structures has been established or equivalent permanent stabilization measures have been established and the development area no longer discharges stormwater associated with construction activities and a Notice of Termination (NOT) form filed by the NOI Permittee with the New York State Department of Environmental Conservation. This filing terminates coverage under the General Permit and terminates the CONTRACTOR'S responsibility to implement the SWPPP. Requirements of the SWPPP,including periodic inspections,must be continued until the NOT is filed. H.SITE DESCRIPTION A. PROJECT NAME AND LOCATION The JERRY SMITH BATTERY ENERGY STORAGE SYSTEM PROJECT site is geographically situated at Latitude N 42' 35'35",Longitude W 76' 33' 50"in the TOWN OF LANSING, TOMPKINS COUNTY, NEW YORK. The site is located on the south side of JERRY SMITH ROAD. The project site is comprised of 56.87 +/- acres of land. The overall disturbance area is 1.67 +/- acres. The project is bounded on the north, south, east and west by PRIVATE FORESTED. Access to the project will be from JERRY SMITH ROAD. The entire parcel will remain privately owned and maintained. Approximately 0.60 +/- acres of impervious surfaces, including travel surfaces will be constructed. On-going reclamation during construction will consist of all activities listed in Section 1.III.A.1 for temporary actions. Permanent reclamation activities for the laydown area and other compacted areas shall follow the NYSDEC Deep- Ripping and Decompaction JUNE 2008 guidance.Final stabilization is defined as the completion of all soil disturbance activities with the phase area having perennial vegetative cover with a density of eighty (80) percent, or other equivalent stabilization measures such as permanent landscape mulches, rock rip-rap or washed/crushed stone. B. NOI PERMITTEE'S NAME AND ADDRESS JERRY SMITH LLC 101 SUMMER STREET, SECOND FLOOR BOSTON,MA 02110 C. PROJECT DESCRIPTION The project will involve the installation of a 5-MWac battery energy storage system on an approximately 57-acre site. The design will include a fenced battery storage development footprint of under 1 acres. The installation will also include associated infrastructure such as a concrete equipment pad, a wooden "knot farm fence"and improved site access via a new gravel access road. Soil disturbing activities will include: 1. Construction of stabilized construction access points 2. Clearing and grubbing 3. Installation of batteries 4. Construction of stormwater areas 5. Construction of utilities on site 6. Construction of landscaped areas 7. Final grading NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 4 D. RUNOFF COEFFICIENT, SOILS,AND RAINFALL INFORMATION The site consists of hydrologic soil types (HSG) B and D. The predevelopment Curve Number (CN) for meadow areas was determined to be 58 for B, and 78 for D;farmland area was 78; and wooded areas were determined to be 60 and 79. Soil within the project area varies from silt loam to gravelly silt loam with areas of well draining soils and poor draining soils, as described by the Soil Conservation Service.The post development CN for all disturbed areas was modeled to be the same as predevelopment. A CN of 98 was used for all post-development impervious surface areas. E. NAME OF RECEIVING WATERS Drainage will be directed via an on-site vegetated filter strip or bioretention area with emergency overflow swales directed to existing drainage ways,and eventually into the Riley Brook. F. INDIAN COUNTRY LANDS The site is not located on any known current or previously designated Indian Country lands. G. ENDANGERED OR THREATENED SPECIES A review of the New York State Department of Environmental Conservation's (NYSDEC) Environmental Resource Mapper (http://www.dec.ny.gov/imsmaps/ERM/viewer.htm) indicated no known State regulated rare plants, rare animals or significant natural communities on-site. A letter has been received from the NYSDEC New York Natural Heritage Program stating that the project is likely to have no impact on endangered or threatened species.This letter is included within Section 6 of the SWPPP. H. HISTORIC PLACES A review of the New York State Historic Preservation Office(OPRHP)Geographic Information System Mapper(http://www.oprhp.state.ny.us/nr/main.asp)indicated that the site is not located in an archeo sensitive area. I. CLIMATE CHANGE RESILIENCY PLANNING With the Community Risk and Resiliency Act(CRRA)being adopted in New York State,JERRY SMITH LLC has demonstrated consideration of several future risks due to the effects of climate change. Increasing Temperature:When developing the battery layout,JERRY SMITH LLC is only proposing to develop approximately 1.67+/-acres of land.The roadway and equipment pads include only 0.60+/-acres of impervious surfaces to reduce material heat absorption(Urban Heat Island Effect)to the maximum extent possible.The stormwater management area on site is a vegetated filter strip and bioretention area which will prevent runoff from entering heat-vulnerable environments. Increasing Precipitation:The use of a vegetated filter strip and bioretention area will allow infiltration on- site which will minimize the amount of runoff and water quality pollution from leaving the site JERRY SMITH LLC will provide the proper long-term operation/maintenance procedures to ensure conveyance systems will not be overwhelmed during large and more frequent storm events. In the event of drought, there will be no physical or ecological risks due to the vegetated filter strip not retaining water. Rising Sea Level:According to the FEMA Flood Insurance Rate Map(Map No.36019C0470E)the project area is located within Zone X(unshaded),which is considered to be outside of the 500-year floodplain,see Section 6 if a map was available.As such,there will also be no increase in storm surge within the project limits. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 5 Shifting Ecology:As stated in part G of this section,there are known State regulated rare plants,rare animals or significant natural communities on-site,but will remain unaffected by the development.The predominant wildlife species that might occupy the project site include squirrels,birds,and deer.The development of this project site will promote sustainable development and should not have any impact on the local ecosystem. III.CONTROLS A. EROSION AND SEDIMENT CONTROLS The following section describes the anticipated Erosion and Sediment Controls required for use during construction of the proposed site. These controls represent the MINIMUM erosion and sediment control measures that will be required to protect the site during construction. Additional erosion and sediment control measures will be necessary during construction. It will be the responsibility of the NOI permittee to authorize the CONTRACTOR to implement all additional erosion and sediment control measures necessary to protect the site during construction. 1. Stabilization practices include(but not limited to): a) Land clearing activities shall be done only in areas where earthwork will be performed and shall progress as earthwork is needed b) Frequent watering of excavation and fill areas to minimize wind erosion during construction. c) Use of stabilization fabric for all slopes having a slope of IV:3H or greater. d) Seeding and planting of all unpaved areas • Temporary seedings should be made within 24 hours of construction or disturbance. If not,the soil must be scarified prior to seeding. • Broadcasting or hydroseeding JUNE be used as seeding methods. • Seeding mixtures should be as follows a) Ryegrass(annual or perennial)applied at 30 lbs.per acre(0.7 lbs./1000 sq. ft.) b) Certified "Aroostook" winter rye (cereal rye) applied at 100 lbs. per acre (2.5 lbs./1000 sq.ft.) *Winter rye shall be used if seeding in October/November. e) Topsoiling • Scarify all compact, slowly permeable, medium and fine textured subsoil areas. Scarify at approximately right angles to the slope direction in soil areas that are steeper than 5 percent. • Remove refuse,woody plant parts,stones over 3 inches in diameter,and other liter. • Topsoil material shall have at least 2 percent by weight of fine textured stable organic material,and no greater than 6 percent. • Topsoil shall have no less than 20 percent fine textured material (passing the No. 200 sieve)and not more than 15 percent clay. • Topsoil shall not be placed when it is partly frozen, muddy, or on frozen slopes or over ice,snow,or standing water. f) Mulching • For grass / legume establishment apply straw mulch applied at 2 ton/acre (90 lbs./1000 sq. ft.) and anchor with wood fiber mulch (hydromulch) at 500-750 lbs./acre (11 — 17 lbs./1000 sq.ft.) g) Protecting Vegetation During Construction • Limit soil placement over existing tree and shrub roots to a maximum of 3 inches. • Use retaining walls and terraces to protect roots of trees and shrubs when grades are lowered. Lowered grades should start no closer than the dripline of the tree. • Avoid trenching within the dripline of the tree. • Construction limits should be identified and clearly marked to exclude equipment. 2. Structural practices include(but not limited to): NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 6 a) Perimeter protection using silt fences b) Sediment basin(s) c) Stabilized construction exit points • Aggregate size shall be 2 inch stone or reclaimed/recycled concrete equivalent • Thickness shall be not less than 6 inches • Width to be the full width of the access point,but not less than 12 ft • Length shall be as required,but not less than 50 ft. • Filter cloth shall be applied over the entire area to be covered with aggregate • The entrance shall be maintained in a condition which will prevent tracking of sediment onto public rights-of-way or streets. When necessary,wheels must be cleaned to remove sediment prior to entrance onto public rights-of-way. d) Stormwater detention ponds(which JUNE also serve as a temporary sediment basin) e) Stone Check Dam • Use graded stone 2 to 15 inches in size • Sediment accumulated behind the check dam shall be removed as needed to allow drainage through the check dam and prevent large flows from carrying sediment over the dam. 3. Sequence of Major Activities The CONTRACTOR will be responsible for implementing erosion and sediment control measures outlined in the SWPPP and any additional erosion and sediment control measures required to stabilize the site. The CONTRACTOR JUNE designate these tasks to certain subcontractors as appropriate, but the ultimate responsibility for implementing these controls and ensuring their proper functioning remains with the CONTRACTOR. The order of activities will be as follows (refer to Stormwater Pollution Prevention Plan Sheet contained in this SWPPP for additional details): a) Construct temporary construction exits at locations shown on the SWPPP plan sheet. b) Install perimeter silt fences. C> Begin clearing and grubbing operations. Clearing and grubbing shall be done only in areas where earthwork will be performed and only in areas where building is planned to commence within 7 days after clearing and grubbing. d) Frequent watering of the excavation and fill areas shall be done to minimize wind erosion. e) Commence site grading and battery construction. f) Disturbed areas of the site where construction activity has ceased for more than 7 days should be temporarily seeded and watered. g) Finalize access road subgrade preparation. h) Install base material as required for pavement. i) Carry out final grading and seeding and planting,including stormwater management areas. j) Remove silt fencing only after all paving is complete and exposed surfaces are stabilized. k) Remove temporary construction exits only prior to pavement construction in these areas (These areas are to be paved last). NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 7 4. Stormwater Management The proposed stormwater management system was designed by The Environmental Design Partnership, Clifton Park,NY. The following paragraphs summarize the stormwater management measures to be incorporated on the site to control pollutants in stormwater discharges after construction is completed. A copy of the Stormwater Management Report is enclosed under Section 6—Supplemental Information. Two (2) stormwater management areas, constructed as a vegetated filter strip and a bioretention area, will be constructed to provide sufficient water quality treatment and allow the water to recharge into the ground. 5. Post-Construction Maintenance of the Stormwater Management System Post construction maintenance and protection of the Stormwater Management System shall be performed in accordance with Section VI. LONG TERM OPERATION AND MAINTENANCE PROCEDURES of the SWPPP. B. OTHER CONTROLS 1. Waste Disposal All waste materials will be collected and stored in a securely lidded metal dumpster rented from a local waste management company which must be a solid waste management company licensed to do business in New York State. The dumpster will comply with all local and state solid waste management regulations. All trash and construction debris from the site will be deposited in the dumpster. The dumpster will be emptied as often as necessary, and the trash will be hauled to a landfill approved by New York State and the local government authority. No construction waste materials will be buried on site.All personnel will be instructed regarding the correct procedures for waste disposal. Notices stating these practices will be posted in the job site construction office trailer, and the job site superintendent will be responsible for seeing that these procedures are followed. 2. Sanitary Waste All sanitary waste will be collected from the portable units a minimum of two times per week by a licensed portable facility provider in complete compliance with local and state regulations. 3. Off-Site Vehicle Tracking A stabilized construction exit will be provided to help reduce vehicle tracking of sediments. The paved streets adjacent to the site entrance will be inspected daily and swept as necessary to remove any excess mud, dirt, or rock tracked from the site. Dump trucks hauling material from the construction site will be covered with a tarpaulin. The job site superintendent will be responsible for seeing that these procedures are followed. 4. Concrete Waste From Concrete Trucks a) Emptying of excess concrete and/or washout from concrete delivery trucks will be allowed on the job site, but only in either (1) specifically designated diked areas which have been prepared to prevent contact between the concrete and/or washout and stormwater which will be discharged from the site or(2)in locations where waste concrete can be poured into forms to make riprap or other useful concrete products. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 8 b) The hardened residue from the concrete washout diked areas will be disposed of in accordance with the procedures given in the Spill Prevention Control and Countermeasures (SPCC) Plan and in accordance with applicable state and federal regulations. The job site superintendent will be responsible for seeing that these procedures are followed. 5. Hazardous Substances and Hazardous Waste a) All hazardous waste materials will be disposed of by the CONTRACTOR in the manner specified by local, state, and/or federal regulations and by the manufacturer of such products. Site personnel will be instructed in these practices by the job site superintendent, who will also be responsible for seeing that these practices are followed. Material Safety Data Sheets (MSDS's) for each substance with hazardous properties that is used on the job site will be obtained and used for the proper management of potential wastes that JUNE result from these products. An MSDS will be posted in the immediate area where such product is stored and/or used and another copy of each MSDS will be maintained in the SWPPP file at the job site construction trailer office. Each employee who must handle a substance with hazardous properties will be instructed on the use of MSDS sheets and the specific information in the applicable MSDS for the product he/she is using, particularly regarding spill control techniques. b) The CONTRACTOR will implement the Spill Prevention Control and Countermeasures (SPCC)Plan found within this SWPPP and will train all personnel in the proper cleanup and handling of spilled materials. No spilled hazardous materials or hazardous wastes will be allowed to come in contact with stormwater discharges.If such contact occurs,the stormwater discharge will be contained on site until appropriate measures in compliance with state and federal regulations are taken to dispose of such contaminated stormwater. It shall be the responsibility of the job site superintendent to properly train all personnel in the use of the SPCC plan. c) Any spills of hazardous materials which are in quantities in excess of Reportable Quantities as defined by EPA regulations shall be immediately reported to the EPA National Response Center 1-800-424-8802. d) In order to minimize the potential for a spill of hazardous materials to come into contact with stormwater,the following steps will be implemented: • All materials with hazardous properties (such as pesticides, petroleum products, fertilizers, detergents, construction chemicals, acids, paints, paint solvents, cleaning solvents, additives for soil stabilization, concrete curing compounds and additives, etc.) will be stored in a secure location,under cover,when not in use. All such materials shall have secondary containment to prevent contamination of soil and runoff. • The minimum practical quantity of all such materials will be kept on the job site. • A spill control and containment kit(containing,for example,absorbent such as kitty litter or sawdust, acid neutralizing powder, brooms, dust pans, mops, rags, gloves, goggles, plastic and metal trash containers,etc.)will be provided at the storage site. • All of the product in a container will be used before the container is disposed of. All such containers will be triple-rinsed with water prior to disposal. The rinse water used in these containers will be disposed of in a manner in compliance with state and federal regulations and will not be allowed to mix with stormwater discharges. • All products will be stored in and used from the original container with the original product label. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 9 • All products will be used in strict compliance with instructions on the product label. • The disposal of excess or used products will be in strict compliance with instructions on the product label. 6. Contaminated Soils a) Any contaminated soils (resulting from spills of materials with hazardous properties) which JUNE result from construction activities will be contained and cleaned up immediately in accordance with the procedures given in the Spill Prevention Control and Countermeasures (SPCC)Plan and in accordance with applicable state and federal regulations. b) The job site superintendent will be responsible for seeing that these procedures are followed. IV. COMPLIANCE WITH FEDERAL,STATE,AND LOCAL REGULATIONS A. The CONTRACTOR will obtain copies of any and all local and state regulations that are applicable to stormwater management, erosion control, and pollution minimization at this job site and will comply fully with such regulations. The CONTRACTOR will submit written evidence of such compliance if requested by any agent of a regulatory body. The CONTRACTOR will comply with all conditions of the New York State Department of Environmental Conservation SPDES General Permit for Construction Activities, including the conditions related to maintaining the SWPPP and evidence of compliance with the SWPPP at the job site and allowing regulatory personnel access to the job site and to records in order to determine compliance. V. MAINTENANCE/INSPECTION PROCEDURES DURING CONSTRUCTION A. Erosion and Sediment Control and Stabilization Measures Maintenance and Inspection Practices 1. The following is a list of erosion and sediment controls to be used on this site during construction practice. a) Stabilization practices for this site include: o Land clearing activities shall be done only in areas where earthwork will be performed and shall progress as earthwork is needed o Frequent watering of excavation and fill areas to minimize wind erosion during construction. o Use of stabilization fabric for all slopes having a slope of I V:3H or greater. o Permanent seeding and planting of all unpaved areas using the hydromulching grass seeding technique. b) Structural practices for this site include: o Perimeter protection using silt fences o Stabilized construction exit points o Stormwater detention ponds(which JUNE also serve as a temporary sediment basin) 2. The following inspection and maintenance practices will be used to maintain erosion and sediment controls and stabilization measures. a) All control measures will be inspected once every seven (7) days at a minimum. Sites that have a waiver to disturb greater than five(5)acres require two(2)inspections every seven(7) days with at least two(2)days between inspections. b) All measures will be maintained in good working order; if repairs are found to be necessary, they will be initiated within 24 hours of report. c) Built up sediment will be removed from silt fence when it has reached one-third the height of the fence. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 10 d) Silt fences will be inspected for depth of sediment, tears, etc., to see if the fabric is securely attached to the fence posts,and to see that the fence posts are securely in the ground. e) The sediment basins will be inspected for depth of sediment, and built up sediment will be removed when it reaches 50 percent of the capacity. f) Temporary and permanent seeding and all other stabilization measures will be inspected for bare spots,washouts,and healthy growth. g) A maintenance inspection report will be made after each inspection. Copies of the report forms to be completed by the inspector are included in this SWPPP. h) The job site superintendent will be responsible for selecting and training the individuals who will be responsible for these inspections, maintenance and repair activities, and filling out inspection and maintenance reports. i) Personnel selected for the inspection and maintenance responsibilities will receive appropriate instruction from the job site superintendent. They will be trained in all the inspection and maintenance practices necessary for keeping the erosion and sediment controls that are used onsite in good working order. They will also be trained in the completion of, initiation of actions required by, and the filing of the inspection forms. Documentation of this personnel training will be kept on site with the SWPPP. j) Disturbed areas and material storage areas will be inspected for evidence of or potential for pollutants entering stormwater systems. k) Report to the NYS Department of Environmental Conservation within 24 hours any noncompliance with the SWPPP that will endanger public health or the environment. Follow up with a written report within 5 days of the noncompliance event. B. Inspection and Maintenance Report Forms Once installation of any required or optional erosion control device or measure has been implemented, weekly inspections of each measure shall be performed by the CONTRACTOR'S inspection personnel. The Inspection and Maintenance Reports found in this SWPPP shall be used by the inspectors to inventory and report the condition of each measure to assist in maintaining the erosion and sediment control measures in good working order. These report forms shall become an integral part of the SWPPP and shall be made readily accessible to governmental inspection officials, the NOI Permittee's Engineer, and the NOI Permittee for review upon request during visits to the project site. In addition, copies of the reports shall be provided to any of these persons, upon request, via mail or facsimile transmission. Inspection and maintenance report forms are to be maintained by the NOI Permittee for five years following the final stabilization of the site. C. Other Record-Keeping Requirements The CONTRACTOR shall keep the following records related to construction activities at the site: -Dates when major grading activities occur and the areas that were graded -Dates and details concerning the installation of structural controls -Dates when construction activities cease in an area -Dates when areas are stabilized,either temporarily or permanently -Dates of rainfall and the amount of rainfall -Dates and descriptions of the character and amount of any spills of hazardous materials -Records of reports filed with regulatory agencies if reportable quantities of hazardous materials spilled D. Winter Operations The following is a list of erosion and sediment controls and inspection and maintenance practices for winter operations for this site. a) Prior to November 11t of any given year all exposed soil areas must be covered with: o Mulch NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 11 o Seed and mulch o Geotextile o Erosion control matting o Rock or o Other approved mulch to prevent soil from eroding b) Install sediment barriers (silt fence or drop inlet protection) at ALL necessary perimeter and sensitive locations BEFORE SOIL FREEZES. c) Slopes and Stockpiles: o Protect slopes and stockpiles with anchored straw or mulch,rolled erosion control product or other durable covering. o Sediment barrier must be installed around piles and at slope toes to prevent soil transport from the pile or slope. o Stabilize exposed areas BEFORE snow covers them. d) All entrance/exit locations must be properly stabilized and maintained to accommodate snow management. e) Inspections: o If soil disturbance is COMPLETELY suspended AND site is PROPERLY STABILIZED, qualified inspection frequency JUNE be reduced with written notification to NYSDEC or MS4. o Confirmation must be received from NYSDEC prior to reducing inspection frequency. o Monthly inspections must be performed at a minimum. o Sediment control measures should be checked after rain or snowmelt events. o Regular inspections must resume by March 15'. VI. LONG TERM OPERATION AND MAINTENANCE PROCEDURES The proposed JERRY SMITH BATTERY ENERGY STORAGE SYSTEM project will be PRIVATELY OWNED and the operation and maintenance requirements will be the responsibility of the private owner. The entire Stormwater Management System shall be inspected on a yearly basis to ensure that the system operates in the manner originally intended. Specific components of the system shall require additional attention as described below. 1. Vegetated Filter Strip a. Vegetated Filter Strips shall be inspected annually and following major storm events to ensure the system operates in the manner originally intended. b. Debris and litter shall be removed from the filter strop and gravel diaphragm as necessary. c. Accumulated sand, grit and/pr debris shall be removed from the filter strip and gravel diaphragm if present. d. If rill erosion is present,fill in areas with native soil and reseed as required. Gravel diaphragm shall be increased in width above rill erosion locations to ensure sheet now onto the vegetated filter strip. 2. Bioretention Areas a. Bioretention Areas shall be inspected annually and following major storm events to ensure the system operates in the manner originally intended. The inspection should include,but not be limited to, the following components; all outlet orifices, embankment, emergency spillway, drain,accumulation of sediment,and general erosion control measures. b. Re-grading and re-vegetation shall be performed as necessary and rip-rap shall be replaced as necessary. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 12 c. Embankments shall be mowed a minimum of twice per year to discourage woody growth and control weeds. d. Debris and litter shall be removed from basins during regular mowing operations or more frequently as necessary. eAccumulated sediment shall be removed from the wet pond area when 10 percent of the basin capacity has been lost due to sedimentation or at a minimum of every 10 to 20 years. 3. Closed Drainage System a. Pipes shall be inspected annually and following major storm events to ensure the system operates in the manner originally intended. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 13 STORMWATER POLLUTION PREVENTION PLAN SUMMARY OF EROSION AND SEDIMENT CONTROL AND STABILIZATION MEASURES MAINTENANCE/INSPECTION PROCEDURES All control measures will be inspected at least once every seven(7)days. Sites that have a waiver to disturb greater than five (5) acres require two(2) inspections every seven(7)days with at least two(2)days between inspections. ❑ All measures will be maintained in good working order; if a repair is necessary,it will be initiated within 24 hours of report. ❑ Built-up sediment will be removed from silt fences when it has reached one-third the height of the fence. ❑ Silt fences will be inspected for depth of sediment,tears,to see if the fabric is securely attached to the fence posts,and to see that the fence posts are firmly in the ground. ❑ Sediment basins, if present,will be inspected for depth of sediment, and built-up sediment will be removed when it reaches 50%of the design capacity or at the end of the job. ❑ Diversion dikes,if present,will be inspected and any breaches promptly repaired. ❑ Temporary and permanent seeding and planting and other stabilization measures will be inspected for bare spots,washouts,and healthy growth. ❑ A maintenance inspection report will be made after each inspection. Copies of the report forms to be used are included in this SWPPP. ❑ The site job superintendent will select the individuals who will be responsible for inspections, maintenance and repair activities,and filling out the inspection and maintenance reports. ❑ Personnel selected for inspection and maintenance responsibilities will receive training from the site job superintendent. They will be trained in all the inspection and maintenance practices necessary for keeping the erosion and sediment controls used onsite in good working order. ❑ Disturbed areas and materials storage areas will be inspected for evidence of or potential for pollutants entering stormwater systems. El Report to The Department of Environmental Conservation within 24 hours any noncompliance with the SWPPP that will endanger public health or the environment. Follow up with a written report within 5 days of the noncompliance event. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 14 STORMWATER POLLUTION PREVENTION PLAN CONSTRUCTIONAMPLEMENTATION CHECKLIST 1. Maintain Records(Project Manager)of Construction Activities, including: ❑ Dates when major grading activities occur ❑ Dates when construction activities temporarily cease on a portion of the site ❑ Dates when construction activities permanently cease on a portion of the site ❑ Dates when stabilization measures are initiated on the site ❑ Dates of rainfall and the amount of rainfall ❑ Dates and descriptions of the character and amount of any spills of hazardous materials ❑ Records of reports filed with regulatory agencies if reportable quantities of hazardous materials spilled 2. Prepare Inspection Reports(Qualified Inspector)summarizing: ❑ Name of inspector ❑ Qualifications of inspector ❑ Measures/areas inspected ❑ Observed conditions ❑ Changes necessary to the SWPPP 3. Report Releases of Reportable Quantities of Oil or Hazardous Materials(Project Manager,if they occur): ❑ Notify National Response Center(1-800-424-8802)immediately ❑ Notify permitting authority in writing within 14 days ❑ Modify the pollution prevention plan to include: -the date of release -circumstances leading to the release -steps taken to prevent reoccurrence of the release 4. Modify Pollution Prevention Plan(per Qualified Inspector)as necessary to: ❑ Comply with the minimum permit requirements when notified by The Department of Environmental Conservation that the plan does not comply ❑ Address a change in design, construction operation, or maintenance that has an effect on the potential for discharge of pollutants ❑ Prevent reoccurrence of reportable quantity releases of a hazardous material or oil NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 15 VII. SPILL PREVENTION CONTROL AND COUNTERMEASURES(SPCC)PLAN A. MATERIALS COVERED The following materials or substances with known hazardous properties are expected to be present onsite during construction: Concrete Cleaning solvents Detergents Petroleum based products Paints Pesticides Paint solvents Acids Fertilizers Concrete additives Soil stabilization additives B. MATERIAL MANAGEMENT PRACTICES The following are the material management practices that will be used to reduce the risk of spills or other accidental exposure of materials and substances to stormwater runoff. 1. Good Housekeeping The following good housekeeping practices will be followed onsite during the construction proj ect. a) An effort will be made to store only enough product required to do the job. b) All materials stored onsite will be stored in a neat, orderly manner and, if possible, under a roof or other enclosure. c) Products will be kept in their original containers with the original manufacturer's label in legible condition. d) Substances will not be mixed with one another unless recommended by the manufacturer. e) Whenever possible,all of a product will be used up before disposing of the container. f) Manufacturer's recommendations for proper use and disposal will be followed. g) The job site superintendent will be responsible for daily inspections to ensure proper use and disposal of materials. 2. Hazardous Products These practices will be used to reduce the risks associated with hazardous materials. a) Products will be kept in original containers with the original labels in legible condition. b) Original labels and material safety data sheets (MSDS's) will be procured and used for each material. c) If surplus product must be disposed of, manufacturer's or local/state/federal recommended methods for proper disposal will be followed. d) A spill control and containment kit(containing, for example, absorbent such as kitty litter or sawdust,acid neutralizing powder,brooms,dust pans,mops,rags,gloves,goggles,plastic and metal trash containers,etc.)will be provided at the storage site. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 16 e) All of the product in a container will be used before the container is disposed of. All such containers will be triple-rinsed with water prior to disposal. The rinse water used in these containers will be disposed of in a manner in compliance with state and federal regulations and will not be allowed to mix with stormwater discharges. 3. Product Specific Practices The following product specific practices will be followed on the job site. a) Petroleum Products All onsite vehicles will be monitored for leaks and receive regular preventative maintenance to reduce the chance of leakage. Petroleum products will be stored in tightly sealed containers which are clearly labeled. Any petroleum storage tanks used onsite will have a dike or berm containment structure constructed around it to contain any spills that JUNE occur. Any asphalt substances used onsite will be applied according to the manufacturer's recommendations. b) Fertilizers Fertilizers will be applied only in the minimum amounts recommended by the manufacturer. Once applied, fertilizer will be worked in the soil to limit exposure to stormwater. Storage will be in a covered shed. The contents of any partially used bags of fertilizer will be transferred to a sealable plastic bin to avoid spills. c) Paints,Paint Solvents,and Cleaning Solvents All containers will be tightly sealed and stored when not in use. Excess paint and solvents will not be discharged to the storm sewer system but will be properly disposed of according to manufacturer's instructions or state and federal regulations. d) Concrete Trucks Concrete trucks will be allowed to wash out or discharge surplus concrete or drum wash water on the site,but only in either(1)specifically designated diked areas which have been prepared to prevent contact between the concrete and/or washout and stormwater which will be discharged from the site or(2) in locations where waste concrete can be poured into forms to make riprap or other useful concrete products. The hardened residue from the concrete washout diked areas will be disposed of in the same manner as other non-hazardous construction waste materials or JUNE be broken up and used on site as deemed appropriate by the CONTRACTOR. The job site superintendent will be responsible for seeing that these procedures are followed. 4. Spill Prevention Practices In addition to the good housekeeping and material management practices discussed in the previous sections of this plan,the following practices will be followed for spill prevention and cleanup. a) Manufacturer's recommended methods for spill cleanup will be clearly posted and site personnel will be trained regarding these procedures and the location of the information and cleanup supplies. b) Materials and equipment necessary for spill cleanup will be kept in the material storage area onsite in spill control and containment kit (containing, for example, absorbent such as kitty litter or sawdust, acid neutralizing powder, brooms, dust pans, mops, rags, gloves, goggles, plastic and metal trash containers,etc.). NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 17 c) All spills will be cleaned up immediately after discovery. d) The spill area will be kept well ventilated and personnel will wear appropriate protective clothing to prevent injury from contact with the hazardous substances. e) Spills of toxic or hazardous materials will be reported to the appropriate federal, state, and/or local government agency, regardless of the size of the spill. Spills of amounts that exceed Reportable Quantities of certain substances specifically mentioned in federal regulations (40 CFR 302 list and oil) will be immediately reported to the EPA National Response Center, telephone 1-800-424-8802. Reportable Quantities of some substances which JUNE be used at the job site are as follows: oil-appearance of a film or sheen on water pesticides-usually 1 lb. acids-5000 lb. solvents,flammable- 100 lb. f) The SPCC plan will be adjusted to include measures to prevent this type of spill from recurring and how to clean up the spill if there is another one.A description of the spill,what caused it, and the cleanup measures will also be included. If the spill exceeds a Reportable Quantity,all federal regulations regarding reports of the incident will be complied with. g) The job site superintendent will be the spill prevention and cleanup coordinator. He will designate the individuals who will receive spill prevention and cleanup training. These individuals will each become responsible for a particular phase of prevention and cleanup. The names of these personnel will be posted in the material storage area and in the office trailer onsite. VIII. CONTROL OF ALLOWABLE NON-STORMWATER DISCHARGES A. Certain types of discharges are allowable under the NYS Department of Environmental Conservation SPDES General Permit for Construction Activity, and it is the intent of this SWPPP to allow such discharges. These types of discharges will be allowed under the conditions that no pollutants will be allowed to come in contact with the water prior to or after its discharge. The control measures,which have been outlined previously in this SWPPP, will be strictly followed to ensure that no contamination of these non-stormwater discharges takes place. The following allowable non-stormwater discharges that JUNE occur from the job site include: a) Discharges from fire fighting activities b) Fire hydrant flushings (see note below) c) Waters used to wash vehicles or control dust in order to minimize offsite sediment tracking d) Potable water sources such as waterline flushings (see note below), irrigation drainage from watering vegetation, routine exterior building washdown (without detergents present) (See Note below) e) Pavement washwaters where spills or leaks of hazardous materials have not occurred or detergents have not been used f) Springs and other uncontaminated groundwater, including dewatering ground water infiltration NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 18 g) Foundation or footing drains where no contamination with process materials such as solvents is present NOTE: CONTRACTOR shall neutralize any super-chlorinated water from water distribution pipes before releasing it into the environment. Neutralization techniques are available from the Operator's Engineer. IX. CERTIFICATION AND NOTIFICATION A. The NYS Department of Environmental Conservation requires that certifications of knowledge of the contents of this SWPPP and agreement to follow the SWPPP be made by the NOI Permittee and the CONTRACTOR. The terms of the General Permit also require that each CONTRACTOR sign the SWPPP plan, (Form 3) thereby making them co-permittees and acknowledging their responsibility for certain operational aspects of the plan. These certifications should be signed before the CONTRACTOR begins activities and should be filed with the site's SWPPP at the jobsite. These certifications are provided within this document,see Table of Contents for location. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 19 SECTION 2 Erosion and Sedimentation Control Plan Site Map and General Location Map i' J k. I '1t I I Subject Project Area N NOT TO SCALE71 Site Location Map The Environmental Design Partnership,LLP ©2023 Jerry Smith BESS Town of Lansing Tompkins County, NY Figure: Source:Google Earth June 2026 7 6 5 4 3 2 I � EROSION AND SEDIMENT CONTROL NOTES: U 1. ALL AREAS TO BE REVEGETATED SHALL HAVE A MINIMUM OF FOUR INCHES OF TOPSOIL. - _ - 2. AREAS USED FOR TEMPORARY LAYDOWN DURING CONSTRUCTION SHALL BE RESTORED TO PRE-CONSTRUCTION CONDITIONS INCLUDING, BUT NOT __ __ __ _- _ -- EROSION A N D SEDIMENT o LIMITS TO, DECOMPACTION. REGRADING, LOAMING, AND SEEDING. IN NO CASE SHALL PARKING AREAS, LAYDOWN AREAS, CONSTRUCTION TRAILERS. _ _ / STONE WALL CONTROL PLAN LEGEND 0- 10 AND PORTABLE TOILETS BE LOCATED WITHIN A WETLAND RESOUCE AREA AND/OR ANY BUFFER ZONES. /n N p p 3. WETLANDS NEAR THE SOLAR ARRAY SHALL BE PROTECTED WITH FILTREXX SILTSOXX OR SILT FENCE. EROSION AND SEDIMENT CONTROL FEATURES / /- / � 1 x p p cu 0- SHALL BE INSTALLED PRIOR TO THE COMMENCEMENT OF SOIL DISTURBING ACTIVITIES. /' / / DENOTES EXISTING GRADE C H Q u u 4. AREAS DESIGNATED FOR CUTTING SHALL BE CUT, ONLY. NO GRUBBING OR STRIPPING OF TOPSOIL IS NECESSARY, EXCEPT FOR THOSE AREAS ,/ / - - - - -� - - -6 U V - - SHOWN ON THE SITE PLANS. - - - - - - - - - - - - 30' SIDE SETBACK - - - - - - - - - - - - - - - - - - -/- - - - - - - - - - - - - - - - - - - - - - / - - - - - - - - - - - - - - -_�- 1 _ V_ }, DENOTES TEMPORARY GRAVEL ACCESS ROAD N O 5. PERMANENT STABILIZATION SHALL BE ESTABLISHED AS SOON AS FEASIBLE GIVEN THE GROWING SEASON. �- L-—-—-—-—-—-—-—-—- /- o LO ` DENOTES STABILIZED CONSTRUCTION :2N O GRAPHIC SCALE I / /' ® ENTRANCE O N I �- _ 'IT W 01.......... o ^ :3' / CO DENOTES EROSION CONTROL BLANKET m � 30 25 20 15 10 5 0 15 30 120 I I / I. (IN FEET) I I a) c U I ' � / E 1 INCH = 30 FT. L- cc •- —_WET AREA DENOTES IMPERVIOUS GRAVEL ACCESS ROAD V) u_ "a Q- I I I I (D O ;_a) X co DENOTES FIXED KNOT FARM FENCE cu Z cn M �, .0 I a) DENOTES MEDIUM VOLTAGE TRENCH (SEE O � c N wv ELECTRICAL PLANS FOR DETAILS `- DENOTES PROPOSED CONTOUR c I I I / F- a) I co CL DENOTES PROPOSED SILT >, W FENCE/SOCK -0 N QuoE W Y m J o a .0 m I , I I X \ D J 4- WET AREA _j Z 0 Ts Lu BcSss II I x �,. LU �_ O fD� TPED —-—-—-— /" I O m .L I x - W (L T 1c 2.7� i I I �' Mt.- F N 5 Z 134 4 'I p x \� LL.1 rn cc N c O I i Rev Issued For Date cn (n •LN to A INTERNAL REVIEW 5/27/26 cu 2` i (Yj I I I x 70 fn i X c cn I I x -0�I II I o0000 co of TPED �- II I ( �, �" - \ I CL N I x E -__1 O 801 —III—I I I CONCRETE WASHOUT ) o 0 o x Z O I_I I I N 18" HDPE , Og I �`►i u INV = 1078.4 0 0 0 0 0 0 IIG79 / 083 0 0 0 0 o J C) =1 I 13: HDPE / q o 0 0 0,1 0 0 i r INV 1078.4 <F STA WA DI I I I .. � + Cj STABILIZED CONSTRUCTION ENTRANCE (TYP.) III w c !'O a) Q x W U `C I m —"��_ STANDING 1085 - - \ i WA TER k 03i /' / k C C �. � I xm W " I / SOIL STOCKPILE EO 2 a O �� x = U c0 0 N `. � •� �•+- �- �y \ SILT FENCE OR SILT SOCK (TYP.) �' —I I .- _ C� x Z ® o oal \ `� .�`. +� . �_ E v S / I- . . o .� En 171 EROSION CONTROL �� x U cu Q c to BLANKET _� I L-f� , . yes 1086 = Q } __ IT�1 8 x � z � E I—III MV �—10A i— rrnn .5 V U z -0 70 co O . . . . ,� _�_ / �+/ -x -x- -n x x x x x. x I xxxx I i I RUBBLE n '1 ,'//-II=IIIry AREA O 10,14 I I I EROSION CONTROL III -;oa5 --- / V O I I BUILDING BLANKET _— - °� + 0 a) OL In \ \ \---_---_ RUBBLE DRIVE - — 1 --__----------- ___-------- /+ CU I- ci co BLDG E O N (1) 1n 1 0B 7 \ \ +, j Z a) / p Q 088 Q o Q I i / W J W U) 0- 0 I I I v, Q'C I I ogg / Q J z a / I CHAIN LINK GATE 1 I \\ - -- -- ---------- --------- --- / } 0 •fA — r / Q � }. 1 --- --- --------- -------- / / z z Q Q --- o ----- \ \ I / p p cu o N L I / U w mEn HOUSE c R A ► / o o CE a) GARAGE / ,a I Dwg No: Size: D Sheet Rev: 0 C-400 A CL o U 5 4 3 2 � SECTION 3 Federal, State or Local Notice of Intent (NOI) NYSDEC NOI Acknowledgement Letter - Pending NYSDEC MS4 SWPPP Acceptance Form SECTION 4 Federal, State or Local NPDES General Permit SECTION 5 Certifications, Forms, Reports, and Daily Logs STORMWATER POLLUTION PREVENTION PLAN NOI PERMITTEE'S CERTIFICATION FORM 1 Construction Site JERRY SMITH BATTERY ENERGY STORAGE SYSTEM JERRY SMITH LLC,TOMPKINS County, New York STORMWATER POLLUTION PREVENTION PLAN DATED JUNE 2026 NOI PERMITTEE'S CERTIFICATION: "I certify under penalty of law that this document was 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 am aware that false statements made herein are punishable as a class A misdemeanor pursuant to Section 210.45 of the Penal Law." NOI Permittee's Designated Project Manager: Signed: Printed Name: Position: Date: NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 1 STORMWATER POLLUTION PREVENTION PLAN CONTRACTOR'S CERTIFICATION LOG FORM 2 Construction Site JERRY SMITH BATTERY ENERGY STORAGE SYSTEM JERRY SMITH LLC,TOMPKINS County, New York Company Name Address Contact Name Telephone Number Cell Phone/Pager Scope of Services Certification Date Company Name Address Contact Name Telephone Number Cell Phone/Pager Scope of Services Certification Date Company Name Address Contact Name Telephone Number Cell Phone/Pager Scope of Services Certification Date Designated Project Manager NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 2 STORMWATER POLLUTION PREVENTION PLAN CONTRACTOR'S/SUBCONTRACTOR'S CERTIFICATION FORM 3 This form to be completed for each contractor listed on Form 2. Reproduce as needed Construction Site JERRY SMITH BATTERY ENERGY STORAGE SYSTEM JERRY SMITH LLC,TOMPKINS County, New York CONSTRUCTION POLLUTION PREVENTION PROGRAM DATED JUNE 2026 CONTRACTOR'S CERTIFICATION: "I hereby certify under penalty of law that I understand and agree to comply with the terms and conditions of the SWPPP and agree to implement any corrective actions identified by the qualified inspector during a site inspection. I also understand that the owner or operator must comply with the terms and conditions of the most current version of the New York State Pollutant Discharge Elimination System ("SPDES") general permit for stormwater discharges from construction activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore,I am aware that there are significant penalties for submitting false information,that I do not believe to be true, including the possibility of fine and imprisonment for knowing violations." The Contractor/Subcontractor further understands that the SWPPP and associated Erosion and Sediment Control Plans represent the MINIMUM erosion and sediment control measures that will be required to protect the site during construction. Additional erosion and sediment control measures will be necessary during construction. It will be the responsibility of Contractor/Subcontractor to implement all additional erosion and sediment control measures necessary to protect the site during construction. CONTRACTOR: SUBCONTRACTOR: Name(Print): Name(Print): Signature: Signature: Date: Date: Title: Title: Company Name: Company Name: Address: Address: Phone: Phone: Elements of SWPPP Contractor/Subcontractor responsible for: Name of Trained Contractor Responsible for SWPPP Implementation: Title of Trained Contractor Responsible for SWPPP Implementation: NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 3 FORM 4 JERRY SMITH BATTERY ENERGY STORAGE SYSTEM SWPPP# This form to be completed by Contractor's designated inspector at least weekly. Reproduce as needed. SWPPP INSPECTION REPORTS Page 1 of Date Weather and Soil Conditions Weather Conditions: Soil Conditions: Dry[ ] Wet [ ] Saturated[ ] Snow Covered[ ] Frozen[ ] Maintaining Water Quality Yes No NA [ ] [ ] [ ] Is there an increase in turbidity causing a substantial visible contrast to natural conditions? [ ] [ ] [ ] Is there residue from oil and floating substances,visible oil film,or globules or grease? [ ] [ ] [ ] All disturbance is within the limits of the approved plans. [ ] [ ] [ ] Have receiving lake/bay,stream,and/or wetland been impacted by silt from project? Housekeeping 1. General Site Conditions Yes No NA [ ] [ ] [ ] Is construction site litter and debris appropriately managed? [ ] [ ] [ ] Are facilities and equipment necessary for implementation of erosion and sediment control in working order and/or properly maintained? [ ] [ ] [ ] Is construction impacting the adjacent property? [ ] [ ] [ ] Is dust adequately controlled? 2. Temporary Stream Crossing Yes No NA [ ] [ ] [ ] Maximum diameter pipes necessary to span creek without dredging are installed. [ ] [ ] [ ] Installed non-woven geotextile fabric beneath approaches. [ ] [ ] [ ] Is fill composed of aggregate(no earth or soil)? [ ] [ ] [ ] Rock on approaches is clean enough to remove mud from vehicles and prevent sediment from entering stream during high flow. Runoff Control Practices 1. Excavation Dewatering Yes No NA [ ] [ ] [ ] Upstream and downstream berms(sandbags,inflatable dams,etc.)are installed per plan. [ ] [ ] [ ] Clean water from upstream pool is being pumped to the downstream pool. [ ] [ ] [ ] Sediment-laden water from work area is being discharged to a silt-trapping device. [ ] [ ] [ ] Constructed upstream berm with one-foot minimum freeboard. 2. Water Bar Yes No NA [ ] [ ] [ ] Installed per plan with vehicle crossings stabilized with gravel. [ ] [ ] [ ] Outlet located on undisturbed soil or lined with riprap. [ ] [ ] [ ] Bar height is 12-inch minimum from bottom of channel with minimum base width of 6-foot. 3. Interceptor Dikes and Swales Yes No NA [ ] [ ] [ ] Installed per plan with minimum side slopes 1 V:3H or flatter. [ ] [ ] [ ] Stabilized by geotextile fabric,seed,or mulch with no erosion occurring. [ ] [ ] [ ] Sediment-laden runoff directed to sediment trapping structure. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 1 FORM 4 JERRY SMITH BATTERY ENERGY STORAGE SYSTEM SWPPP# This form to be completed by Contractor's designated inspector at least weekly. Reproduce as needed. SWPPP INSPECTION REPORT Page 2 of Date 4. Stone Check Dam Yes No NA [ ] [ ] [ ] Is channel stable?(flow is not eroding soil underneath or around the structure). [ ] [ ] [ ] Check is in good condition(rocks in place and no permanent pools behind the structure). [ ] [ ] [ ] Has accumulated sediment been removed? 5. Rock Outlet Protection Yes No NA [ ] [ ] [ ] Installed per plan. [ ] [ ] [ ] Installed concurrently with pipe installation. Soil Stabilization 1. Topsoil and Spoil Stockpiles Yes No NA [ ] [ ] [ ] Stockpiles are stabilized with vegetation and/or mulch. [ ] [ ] [ ] Sediment control is installed at the toe of the slope. 2. Revegetation Yes No NA [ ] [ ] [ ] Temporary seedings and mulch have been applied to idle areas. [ ] [ ] [ ] Four inches minimum of topsoil has been applied under permanent seedings. Sediment Control Practices 1. Stabilized Construction Entrance Yes No NA [ ] [ ] [ ] Stone is clean enough to effectively remove mud from vehicles. [ ] [ ] [ ] Installed per standards and specifications? [ ] [ ] [ ] Does all traffic use the stabilized entrance to enter and leave site? [ ] [ ] [ ] Is adequate drainage provided to prevent ponding at entrance? 2. Silt Fence Yes No NA [ ] [ ] [ ] Installed on Contour,ten feet from toe of slope(not across conveyance channels). [ ] [ ] [ ] Joints constructed by wrapping the two ends together for continuous support. [ ] [ ] [ ] Fabric buried six inches minimum. [ ] [ ] [ ] Posts are stable,fabric is tight and without rips or frayed areas. Sediment accumulation is %of design capacity. 3. Storm Drain Inlet Protection(Use for Stone&Block;Filter Fabric;Curb;or,Excavated practices) Yes No NA [ ] [ ] [ ] Installed concrete blocks lengthwise so open ends face outward,not upward. [ ] [ ] [ ] Placed wire screen between No.3 crushed stone and concrete blocks. [ ] [ ] [ ] Drainage area is one acre or less. [ ] [ ] [ ] Excavated area is 900 cubic feet. [ ] [ ] [ ] Excavated side slopes should be 2:1. [ ] [ ] [ ] 2"x 4"frame is constructed and structurally sound. [ ] [ ] [ ] Posts three-foot maximum spacing between posts. [ ] [ ] [ ] Fabric is embedded 1 to 1.5 feet below ground and secured to frame/posts with staples at maximum eight inch spacing. [ ] [ ] [ ] Posts are stable,fabric is tight and without rips or frayed areas. Sediment accumulation %of design capacity. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 2 FORM 4 JERRY SMITH BATTERY ENERGY STORAGE SYSTEM SWPPP# This form to be completed by Contractor's designated inspector at least weekly. Reproduce as needed. SWPPP INSPECTION REPORT Page 3 of Date 4. Temporary Sediment Trap Yes No NA [ ] [ ] [ ] Outlet structure is constructed per the approved plan or drawing. [ ] [ ] [ ] Geotextile fabric has been placed beneath rock fill. Sediment accumulation is %of design capacity. 5. Temporary Sediment Basin Yes No NA [ ] [ ] [ ] Basin and outlet structure constructed per the approved plan. [ ] [ ] [ ] Basin side slopes are stabilized with seed/mulch. [ ] [ ] [ ] Drainage structure flushed and basin surface restored upon removal of sediment basin facility. Sediment accumulation is %of design capacity. Dust Control Practices 1. Haul Road and Current Work Areas Yes No NA [ ] [ ] [ ] Are all traffic surface areas sufficiently treated to prevent fugitive dust? [ ] [ ] [ ] Are any areas of site's non-traffic and work area experiencing wind erosion? [ ] [ ] [ ] Are there any disturbed areas in need of temporary seed and mulch to protect surface from wind erosion? [ ] [ ] [ ] Is watering truck on-site? [ ] [ ] [ ] Is dust visible in air at any location of the site? Note: Not all erosion and sediment control practices are included in this listing. Add additional pages to this list as required by site-specific design. Construction inspection checklists for post-development stormwater management practices can be found in Appendix F of the New York Stormwater Management Design Manual. Description of condition of runoff at all points of discharge from the construction site. (This shall include identification of discharges of sediment from the construction site. Include discharges from conveyance systems (i.e.pipes,culverts,ditches,etc.)and overland flow.) Description of areas that are disturbed at the time of the inspection and areas that have been stabilized (temporary and/or final)since the last inspection(see Page 5 for Sketch). NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 3 FORM 4 JERRY SMITH BATTERY ENERGY STORAGE SYSTEM SWPPP# This form to be completed by Contractor's designated inspector at least weekly. Reproduce as needed. SWPPP INSPECTION REPORT Page 4 of Date ADDITIONAL COMMENTS*: Inspector(print name and title) Date and Time of Inspection Qualified Professional(print name) Qualified Professional Signature The above signed acknowledges that,to the best of his/her knowledge,all information provided on the forms is accurate and complete. *Attach photographs of practices identified as needing corrective actions. NOTE: IN ACCORDANCE WITH PART IV.C.4 OF THE SPDES GENERAL PERMIT(GP-0-20-001), THE QUALIFIED INSPECTOR MUST NOTIFY THE OWNER OR OPERATOR AND APPROPRIATE CONTRACTOR OF ANY CORRECTIVE ACTIONS THAT NEED TO BE TAKEN. THE CONTRACTOR SHALL BEGIN IMPLEMENTING THE CORRECTIVE ACTIONS WITHIN ONE(1)BUSINESS DAY OF THIS NOTIFICATION AND SHALL COMPLETE THE CORRECTIVE ACTIONS IN A REASONABLE TIME FRAME. NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 4 STORMWATER POLLUTION PREVENTION PLAN MODIFICATION REPORT FORM 5 This form to be used only when Contractor's designated inspector believes changes to the SWPPP and/or Erosion and Sediment control plans is warranted. For example, additional erosion control measures needed or removal of specific control measures can be done without adverse impact. This form must be approved by Designated Project Manager prior to implementation. Construction Site JERRY SMITH BATTERY ENERGY STORAGE SYSTEM JERRY SMITH LLC,TOMPKINS County,New York CHANGES REQUIRED FOR STORMWATER POLLUTION PREVENTION PLAN To: Designated Project Manager Date: Address: Telephone: Facsimile: Sent Via: ❑ Facsimile ❑ E-mail ❑ US Mail INSPECTOR: DATE: (Print) (Signature) QUALIFICATIONS OF INSPECTOR: CHANGES REQUIRED TO THE STORMWATER POLLUTION PREVENTION PLAN: REASONS FOR CHANGES: TO BE PERFORMED BY: ON OR BEFORE: APPROVED BY DESIGNATED PROJECT MANAGER DATE: NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 1 STORMWATER POLLUTION PREVENTION PLAN RECORD OF STABILIZATION AND CONSTRUCTION ACTIVITIES FORM 6 Construction Site JERRY SMITH BATTERY ENERGY STORAGE SYSTEM JERRY SMITH LLC,TOMPKINS County, New York A record of dates when major grading activities occur,when construction activities temporarily or permanently cease on a portion of the site,and when stabilization measures are initiated shall be maintained until final site stabilization is achieved and the Notice of Termination is filed.Reproduce copies of this form as needed. MAJOR GRADING,CONSTRUCTION,OR STABILIZATION ACTIVITIES Description of Activity: Begin Date: Site Contractor: Location: End Date: Description of Activity: Begin Date: Site Contractor: Location: End Date: Description of Activity: Begin Dates Site Contractor: Location: End Date: Description of Activity: Begin Date: Site Contractor: Location: End Date: Description of Activity: Begin Date: Site Contractor: Location: End Date: Designated Project Manager NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 2 STORMWATER POLLUTION PREVENTION PLAN RECORD OF TEMPORARY EROSION AND SEDIMENT CONTROL PRACTICES FORM 6A Construction Site JERRY SMITH BATTERY ENERGY STORAGE SYSTEM JERRY SMITH LLC,TOMPKINS County, New York A record of the timing of temporary erosion and sediment control practices to be implemented, including the timing of initial placement and the duration that each practice should remain in place. The record DUNE reflect the actual date of planned installation or the specific construction activity with which it will be associated. The timing of removal JUNE reflect an actual date or the length of time over which the practice will be implemented. TEMPORARY EROSION AND SEDIMENT CONTROL PRACTICES Description of Practice: Date/Timing of Initial Placement: Site Contractor: Location: Projected Date/Timing of Removal: Description of Practice: Date/Timing of Initial Placement: Site Contractor: Location: Projected Date/Timing of Removal: Description of Practice: Date/Timing of Initial Placement: Site Contractor: Location: Projected Date/Timing of Removal: Description of Practice: Date/Timing of Initial Placement: Site Contractor: Location: Projected Date/Timing of Removal: Description of Practice: Date/Timing of Initial Placement: Site Contractor: Location: Projected Date/Timing of Removal: Designated Project Manager NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 3 YEAR 20 STORMWATER POLLUTION PREVENTION PLAN FORM 7 PROJECT RAINFALL LOG (to be completed by Contractor) Month Jan Feb Mar Apr JUNE June July Aug Sep Oct Nov Dec Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 PM Initials NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 4 STORMWATER POLLUTION PREVENTION PLAN FINAL STABILIZATION CERTIFICATION/NOTICE OF TERMINATION CHECKLIST FORM 8 This form is to be completed by Contractor and submitted to Designated Project Manager for approval only afterContractor believes all work regulated by SWPPP is complete. Construction Site JERRY SMITH BATTERY ENERGY STORAGE SYSTEM JERRY SMITH LLC,TOMPKINS County,New York 1. ❑ All soil disturbing activities are complete. 2. ❑ Temporary Erosion and Sediment Control Measures have been removed or will be removed at the appropriate time. 3. ❑ All areas of the Construction Site not otherwise covered by a permanent pavement or structure have been stabilized with a uniform perennial vegetative cover with a density of 85% or equivalent measures have been employed. CONTRACTOR'S CERTIFICATION: "I certify under penalty of law that all storm water discharges associated with industrial activity from the identified project that are authorized by NPDES general permit have been eliminated and that all disturbed areas and soils at the construction site have achieved Final Stabilization and all temporary erosion and sediment control measures have been removed or will be removed at the appropriate time. Company Name Name(Print) Signature Date APPROVED BY DESIGNATED PROJECT MANAGER DATE: NOI Permittee: JERRY SMITH LLC JERRY SMITH BATTERY ENERGY STORAGE SYSTEM 5 SECTION 6 Supplemental Information 1. Stormwater Management Narrative 2. Soil Mapper 3. SHPO Correspondence 4. Endangered and Threatened Species Correspondence Stormwater Management Narrative Jerry Smith BESS Project Jerry Smith Road Town of Lansing Tompkins County, New York Applicant: Jerry Smith, LLC 101 Summer Street, 2nd Floor Boston, MA 02110 JUNE 2026 Revised:JUNE 2026 Prepared By: The Environmental Design Partnership, LLP 900 Route 146 Clifton Park, NY 12065 ENVIRONMENTAL DESIGN eco PARTNERSHIP, LLP. TABLE OF CONTENTS Contents 1.0 Introduction..................................................................................................................................................3 2.0 Existing Conditions.............................................................................................3 2.1 Soil and Groundwater Conditions..........................................................................4 3.0 Predevelopment Stormwater Analysis.......................................................................4 4.0 Stormwater Management Planning and Practice Selection...............................................5 5.0 Post-Development Stormwater Analysis....................................................................5 5.1 Stormwater Management Area#1 —Vegetated Filter Strip.............................................6 5.2 NYS Unified Stormwater Sizing Criteria.................................................................7 5.2.1 Water Quality(WQv).................................................................................7 5.2.2 Runoff Reduction Volume(RRv)..................................................................7 6.0 Summary.......................................................................................................10 Figures Figure 1—Site Location Map Figure 2— Pre-development Drainage Map Figure 3 — Post-development Drainage Map Attachments Attachment A—WQv Calculations Attachment B—Stormwater Modeling Calculations 2 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN eco PARTNERSHIP, LLP. 1.0 Introduction Jerry Smith, LLC is proposing the development of a Battery Energy Storage System (BESS) for on an existing parcel of land totaling approximately 57+/- acres located on Jerry Smith Road in the Town of Lansing, New York. The proposed site development includes a BESS which consists of approximately 620 +/- linear feet (LF) of access road, equipment pads, stormwater management areas, and ten-foot-high perimeter fencing. The total area of proposed disturbance is approximately 1.67 +/- acres and 0.60 +/- acres of new impervious area will be associated with the project. A stormwater management system has been developed to provide pollutant removal, reduce channel erosion, prevent overbank flooding, and safely control extreme flood events in accordance with the NYS Stormwater Management Design Manual (Design Manual). The temporary erosion control measures and post-construction stormwater management systems for this project have been designed in accordance with those guidelines and subsequent discussions with the NYSDEC relative to their guidelines. Section 7.0 of this report addresses specific BESS panel application guidance. The proposed stormwater management system for the project will include the use of a vegetated filter strip and bioretention area designed to convey runoff from the gravel access road and concrete equipment pads. Runoff from the impervious access road is directed into the vegetated filter strip or bioretention area prior to discharging offsite. This narrative presents a review of the design concepts and parameters of the stormwater management system for the proposed increased impervious areas, in accordance with NYSDEC application guidance, including the access roads and the equipment pads. The purpose of the stormwater management narrative is to ensure that changes in the surface runoff characteristics, as a result of the proposed construction, will not adversely impact adjacent or downstream properties. On-site stormwater management will be implemented in accordance with the Design Manual and NYSDEC application guidance to accommodate both additional stormwater runoff and to provide water quality treatment according to the green infrastructure standards. 2.0 Existing Conditions The site consists of mostly wooded and field areas with residential development on the northern side of the parcel. The topography of the land consists of drainage from a highpoint in the middle of the site out to all directions. The typical slopes within the area of the proposed development range from 1% to 10% Elevations at the site vary between 1086 and 1078 feet above sea level. 3 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN eco PARTNERSHIP, LLP. 2.1 Soil and Groundwater Conditions The USDA Natural Resources Conservation Service Soil Survey identifies the soils on the site, in the proposed development, consist of a variety of soil types from silt loam to a gravelly silt loam. These soils vary as Hydrologic Soil Groups (HSG) B and D. The results from the USDA Natural Resources Conservation Soil Survey (NRCS Soil Survey) are included in Section 6 of the SWPPP. 3.0 Predevelopment Stormwater Analysis The existing hydrologic conditions, in the area to be disturbed as a result of the proposed construction, were analyzed using Applied Microcomputer Systems' "HydroCAD" computer modeling program. The HydroCAD stormwater modeling program employs the United States Department of Agriculture's Soil Conservation Service (SCS) Technical Release 20 (TR-20) method for stormwater analysis. Using this modeling technique, the site is divided into "subcatchments" that represent specific areas contributing stormwater runoff to an existing, or proposed drainage feature. The subcatchments typically flow through "reaches" (i.e., swales, channels, or pipes) that convey the stormwater to storm basins or discharge areas. A hydrologic model of the existing site was prepared using the Hydrocad program. Three (3) large sub catchments were used to represent the existing drainage condition, see Figure 2. The existing parameters of topography, vegetation, slope and soil type are all incorporated into the predevelopment model. Table 1 presents a summary of the pre-development stormwater peak discharge for the 1 year, 10 year and 100-year design storm events at the respective Design Point. As will be discussed in subsequent sections, the post development stormwater discharge rate has been limited to the predevelopment discharge rate for the 1-year, 10-year, and 100-year storm events. Table 1: Pre-Development Runoff Rates Storm Event Total Discharge (cfs) 1-Year (1.97") 0.65 10-Year (3.36") 6.89 100-Year (5.73") 26.36 The pre-development Curve Numbers (CN) for the existing ground covers are listed in Table 2. 4 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN e4D PARTNERSHIP, LLP. Table 2: Pre-Development Ground Cover Pre-Development Ground Cover Description Curve Number Meadow, Non-grazed, HSG B 58 Meadow, Non-grazed, HSG D 78 Row Crops, Straight Row, Good, HSG B 78 Woods, Fair, HSG B 60 Woods, Fair, HSG D 79 Impervious 98 The weighted CN for the pre-development conditions for the site is approximately 66. The HydroCAD model results for the pre-development conditions are included within Attachment B. 4.0 Stormwater Management Planning and Practice Selection The site layout and stormwater design for this project was completed while taking into consideration the potential impacts on the existing site and downstream hydrology. Stormwater runoff from the existing site predominately sheet flows to low areas. The stormwater management system will replicate similar practices. Stormwater from impervious areas on the site is designed to be treated with a vegetated filter strip and a bioretention area. This design method was chosen on this site due to the minor amount of impervious surface and the uniform grade of the access road. Vegetated filter strips are considered standard stormwater management practices with runoff reduction volume capacity. The total disturbance for the project will be on the order of 1.67± acres. The proposed development will result in an increase of impervious cover by 0.60± acres. 5.0 Post-Development Stormwater Analysis The post-development conditions were analyzed using the HydroCAD computer modeling program. Six (6) subcatchments were used to represent the post development drainage conditions of the site in the areas of the proposed BESS development. Site improvements to the property will consist of approximately 620 +/- LF of access road, a BESS equipment pad, and perimeter fencing. Also included, as permanent elements of the development, is the on-site stormwater 5 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN ect) PARTNERSHIP, LLP. management area depicted as a vegetated filter strip and a bioretention area. This vegetated filter strip and bioretention area have been designed to provide treatment and attenuation of stormwater runoff from the proposed impervious surfaces on the site. Runoff from the undeveloped portion of the project site, outside of the stormwater management areas, will sheet flow off site, which is similar to predevelopment drainage patterns. The post-development ground cover Curve Numbers (CN) are listed in Table 3. Table 3: Post-Development Ground Cover Post-Development Ground Cover Description Curve Number Meadow, Non-grazed, HSG B 58 Meadow, Non-grazed, HSG D 78 Row Crops, Straight Row, Good, HSG B 78 Woods, Fair, HSG B 60 Woods, Fair, HSG D 79 Impervious 98 The weighted CN for the post-development conditions for the site is approximately 67. The HydroCAD model results for the post-development conditions are included within Attachment B. The contributing area to each stormwater management area is identified in Figure 3. Table 4 presents a summary of the post-development stormwater peak discharge for the 1 year, 10 year and 100-year design storm events at the respective Design Points. The 1-Year design storm for the post development conditions is greater than the pre development conditions by 0.07 cfs and is not a significant increase and should not cause any flooding or additional soil erosion. Table 4: Post-Development Runoff Rates Storm Event Total Discharge (cfs) 1-Year (1.97") 0.72 10-Year (3.36") 6.82 100-Year (5.73") 25.49 6 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN e4D PARTNERSHIP, LLP. 5.1 Stormwater Management Area#1 — Vegetated Filter Strip Stormwater Management Area #1 is designed as a vegetated filter strip with a gravel diaphragm. The filter strip and diaphragm will provide treatment and attenuation of stormwater runoff from the impervious access road and concrete equipment pad. Runoff contributing to SMA#1 will be conveyed via shallow concentrated flow and sheet flow. 5.2 Stormwater Management Area#2—Bioretention Area Stormwater Management Area #2 is designed as a bioretention area. The vegetated swale and bioretention area will provide treatment and attenuation of stormwater runoff from the impervious access road and concrete equipment pad. Runoff contributing to SMA #2 will be conveyed via vegetated swale. 5.3 NYS Unified Stormwater Sizing Criteria The area to be disturbed as a result of the proposed development was modeled in HydroCAD under the post-development conditions using two subcatchments (Figure 3) routed into the stormwater management areas. The contributing area of each stormwater management area is identified in Figure 3. The post-development stormwater management system has been designed based on the Unified Stormwater Sizing Criteria as described in the following sections. 5.3.1 Water Quality(WQJ In general, small storm events and the initial runoff from larger storm events are an environmental concern as this stormwater runoff typically contains roadway pollutants and thermal energy stored by the asphalt. In accordance with the Design Manual, this initial runoff is designated as the Water Quality Volume (WQv) and special attention is given to this volume of runoff to meet water quality objectives. The Design Manual identifies several standard practices, such as the proposed infiltration basins which are acceptable for water quality treatment. These acceptable Stormwater Management Practices (SMPs) can capture and treat the full water quality volume (WQv), are capable of 80% TSS removal and 40% TP removal, have acceptable longevity in the field, and have pretreatment mechanism. The water quality storage volume, WQ,,, is calculated as follows: _ P •R„ • A W Q'' 12 Where: WQv= water quality volume (acre-feet) P = 90% rainfall event number R = 0.05+O.009(I), where I is percent impervious cover A = site area (acres), impervious area used with I = 100% 7 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN ect) PARTNERSHIP, LLP. Table 5: Required Water Quality Volume Drainage P Rv A (Acres) Required WQ,(cf) Provided WQv (cf) Area SMA#1 1.00 0.95 0.19 655 655 SMA#2 1.00 0.95 0.66 1,133 1,133 5.3.2 Runoff Reduction Volume (RRv) The Design Manual specifies that runoff shall be reduced by 100% of the site WQv using standard SMPs with RRv capacity and green infrastructure techniques. The proposed project area on the site is approximately 1.67 acres. The total watershed area contributing to the SMA for analysis is approximately 0.85 acres, with a total post-development impervious area on the order of 0.60 acres. The resulting RRv for these site coverages is computed as 697 CF. Runoff reduction will be provided by standard SMP's with RRv capacity. (See Appendix A for summary of calculations) 5.3.2.1 Stormwater Management Practices (SMP's) A bioretention area has been proposed to collect and treat the stormwater runoff from the site. The bioretention area is considered a standard stormwater treatment practice with RRv capabilities. The WQv provided by the wet swale is 1,167 CF. 5.3.2.2 Green Infrastructure Practices The vegetated filter strip is considered a green infrastructure practice. The RRv provided by the practice is on the order of 655 CF. Greater than the minimum RRv required. The following Table provides a summary of the Runoff Reduction provided for the proposed development, based on each management practice and technique. Table 6: Runoff Reduction Volume Summary Runoff Reduction Technique RRv (cf) Vegetated Filter Strip 655 Bioretention Area 1,133 Total Site Reduction 1788 WQv. Reduction >100% Many of the green infrastructure practices recommended in the Design Manual were not applied to the stormwater management design on this site due to either site restrictions or the use of more feasible green infrastructure in place of the more restrictive and/or maintenance 8 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN ect) PARTNERSHIP, LLP. intensive practices. The following table discusses why the unused green infrastructure practices were not feasible. Table 7: Non-Feasible Green Infrastructure Practices Green Infrastructure Reason use is not feasible Practice Vegetated Swales There are no swales proposed to receive runoff from impervious areas onsite Trees will be saved on the site to the greatest extent possible.Trees will also be planted to maintain a buffer from the surrounding properties to the proposed Tree Planting/Tree Pit site,though the resulting runoff reduction value for adding additional trees is minimal. Conservation of Natural Natural areas will be conserved on site as much as possible, but the resulting Areas runoff reduction value is minimal. Stream Daylighting No existing piped streams are located on the site. Green Roofs There is no building construction proposed as part of the project Stormwater Planters The proposed practices were deemed more economically feasible and effective as opposed to stormwater planters.Additionally,they require less maintenance. Rain Barrels/Cisterns Rain Barrels/Cisterns would require the ability to use the water between storm events which is not feasible for this project type. Rain Gardens Rain gardens are not recommended for commercial applications as well as not economically feasible. Disconnection of There is no building construction proposed as part of the project Rooftop Runoff 5.3.3 Channel Protection (Cpv) In accordance with the Design Manual, stream channel protection, designed to protect stream channels from erosion, is accomplished by providing 24-hour extended detention of the one- year, 24-hour storm event. The Cpv requirement is typically satisfied by providing additional storage above the water quality (WQv) volume. According to Chapter 4 of the Design Manual, the stream channel protection requirement does not apply when the entire channel protection volume is reduced through green infrastructure or infiltration systems. The stormwater management practice onsite is designed as a green infrastructure practice; additionally, stormwater modelling indicates the proposed stormwater management areas designed to fully attenuate and infiltrate the contributing stormwater runoff for stormwater events up to the 100-Year design storm. 5.3.4 Overbank Flood(Qp) Overbank Flood Control Criteria has been established to limit the frequency and magnitude of out-of-bank flooding generated through changes in runoff characteristics as a result of 9 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN eco PARTNERSHIP, LLP. increased impervious surface area. In accordance with the Design Manual, providing sufficient storage volume to attenuate the post development 10-year, 24-hour peak discharge rate to the equivalent pre-development discharge rate controls overbank flooding. The 10-year design storm event was analyzed using the HydroCAD stormwater modeling program (TR-20) under the post-development drainage conditions shown on Figure 3. Using a 10-year, 24-hour design storm of 3.36 inches, the stormwater management area was designed with sufficient storage volume to limit the post-development 10-year, 24-hour peak discharge rate to the pre-development discharge rate. The following table presents the pre- and post- development discharge rates for the offsite discharge. As indicated, the post-development discharge rate is less than the pre-development rate as required. Table 8: Overbank Flow Runoff Summary 10-year (3.36") runoff rate (cfs) Predevelopment Post-Development DP-1 6.89 6.82 5.3.5 Extreme Storm (Qf) In accordance with the Design Manual, the stormwater management system must attenuate the post development 100-year, 24-hour peak discharge rate to the predevelopment rate while providing safe passage of this storm event. The 100-year storm event was analyzed using the HydroCAD stormwater modeling program (TR-20) under the post-development drainage conditions shown in Figure 3. Using a 100-year, 24-hour design storm of 5.73 inches, the stormwater management areas were designed with sufficient storage volume to limit the post-development 100-year, 24-hour peak discharge rate to the predevelopment discharge rate. The following table presents the pre and post development discharge rates for the offsite discharge. As indicated, the post-development discharge rate is less than the predevelopment rate as required. Table 9: Extreme Storm Runoff Summary 100-year (5.73") runoff rate (cfs) Predevelopment Post-Development DP-1 26.36 25.49 10 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN eco PARTNERSHIP, LLP. 6.0 Summary Development of the proposed project site will alter the stormwater drainage characteristics of the site; impervious area will be added in the form of an improved compacted gravel or paved access road, BESS, and a equipment pad. Changes to the stormwater drainage characteristics of the site have been evaluated in accordance with the Design Manual. The proposed stormwater management system has been designed to comply with the recommendations in the Design Manual and the NYSDEC SPCG as it relates to maintaining sheet flow, providing water quality/runoff reduction/channel protection volume, overbank flood control and extreme flood control for new development projects. The proposed stormwater management system has been designed to attenuate and treat the stormwater runoff generated from the contributing areas for storm events to the pre- development rates, up to and including the 100-Year design storm event. The proposed stormwater management design includes the use of a vegetated filter strip. Stormwater modeling results indicate the ability to reduce the overall post-development discharge rate from the site as summarized in Table 10. Table 10: Reduction in Peak Discharge Rates Peak Discharge Rates in cfs 1-Year 10-Year 100-Year Storm Storm Storm Pre-Development 0.65 6.89 26.36 Post-Development 0.72 6.82 25.49 Overall Reduction (cfs) -0.07 0.07 0.87 Through the implementation of acceptable stormwater management practices, recommended by the NYS Stormwater Management Design Manual, the proposed project will not adversely affect adjacent or downstream properties. Prepared by: Reviewed by: Benjamin Willson, Project Engineer Travis Mitchell, P.E. The Environmental Design Partnership, LLP 11 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN e4D PARTNERSHIP, LLP. 12 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN e4D PARTNERSHIP, LLP. REFERENCES HydroCAD version 10.2, Applied Microcomputer Systems, Chocura, New Hampshire. NYSDEC, 1990. "Technical and Operational Guidance Series (5.1.8) Stormwater Management Guidelines for New Development", New York State Department of Environmental Conservation, Division of Water. NYSDEC, 1992. "Reducing the Impacts of Stormwater Runoff from New Development", New York State Department of Environmental Conservation, Division of Water. NYSDEC, 2015. "New York State Stormwater Management Design Manual", Center for Watershed Protection, Ellicott City, MD. Rawls, W.J., Brakensiek, D.L., and Saxton, K. E., 1982. "Estimation of Soil Properties", Transactions of the American Society of Agricultural Engineers, Vol. 25, No. J, pp. 1316-1320. S.C.S., 1982. "TR-20 Project Formulation-Hydrology, Technical Release No. 20", U.S. Department of Agriculture, Soil Conservation Service, Hydrology Unit Division of Engineering. United States Department of Agriculture, Web Soil Survey. Retrieved from https://websoilsurvey.sc.egov.usda.gov NYSDEC, 2018. "BESS Panel Construction Stormwater Permitting/ SWPPP Guidance", New York State Department of Environmental Conservation, Division of Water. MDE,2000. "2000 Maryland Stormwater Design Manual, Volumes I and II". Maryland Department of the Environment MDE. "Stormwater Design Guidance- BESS Panel Installations". Maryland Department of the Environment 13 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN PARTNERSHIP, LLP. Figures 1. Site Location map 2. Pre-Development Drainage Map 3. Post Development Drainage Map 14 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 ENVIRONMENTAL DESIGN PARTNERSHIP, LLP. r 0 Subject Project Area N NOT TO SCALE A Site Location Map D—gE Eno —Oi design PaNnership,LLP G 2023 Jerry Smith BESS Town of Lansing Tompkins County, NY Figure: Source:Google Earth June 2026 1 Figure 1: Site Location Map 15 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 MAP KEY GRAPHIC SCALE \ z o c SUBCATCHMENT fl. — BOONDARr '�'\ co J C too 80 60 40 20 0 50 100 zoo 400 0 J r S1 SuBCATCHMENT W. 1 �' (IN FEET) —� o- Z 1 INCH = 100 FT. 2 G m 4 STORMWATER DEWS \ --- _ -- -_ -�.__ IL LLJ DP1 DP DESIGN POINT - ---� Z Zco U 0 cm TC PATH � �• - Q .W I r W rn`� m DP2 z Tm N z a � r m I � I A GV m o, J a � J ,o — 0 rr^^ v! n 20 Q o � Y I T�Z O00 co a f v Z o Q >: N + Q > Q � CDO ? Z c = z0 � _j _ — - - � LLZ w O LV I } Za-— � X woo 0 oac I I - / x REVISION DATE BYLu V :D LL ti} 1 ❑ �X x X x x x xX—� I 3 HIGH BOXW/RE FENCE - Lo �X SCALE: 1 100' of 30 °` SHEET TITLE: i IT PRE DEVELOPMENTco n SHEET N0. a P3 =X FIGURE 1 10 ?x z to MAP KEY GRAPHIC SCALE \_ CD N SUBCATCNMENT � a BOUNDARY \\ co J C,6 >- 01 S1 suecATCNMENr I.D. ioo so so ao zo a so ioo N FEET) zoo aoo 0 0. z 1 INCH = 100 FT. t— _ .1co m STORMWATER DEVICE ------— —-- z C. -- _ uj O uj DP1 �z z r- DP DESIGN PONT _ _ - ------- _ U co cm 0 co TC PATH - Q W r 0 r; \10 > a 0° z o� A I W rn `� c c �p N N z Tr- N c� DP2 s r W z 10 1 3 c f \ N 1\ � A \ u) J U) ., o \ S ® Q \ 10 1 Z Y 0 IL W + \ ? o \ � � > cli +\ \ oZz o + v 1 � J0 cm - - - ALL W U) o - - O W } Zap 10 � I w00 0 woo ❑ �� REVISION DATE BYE x N x x m x XX Xxx x x x� HIGH BOX IRE FENCE x '� Lo 'o x SCALE: 1" = 100' n \" SHEET TITLE: cn, x II x POST m \ DEVELOPMENTco x ;x 00�� = SHEET NO. a 'I� �x FIGURE 2 0 DP3 ^x I ENVIRONMENTAL DESIGN PARTNERSHIP, LLP. Attachment A Water Quality Calculation Runoff Reduction Calculation 16 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 Step 2 - Calculate Water Quality Volume Is this project subject to Section 4.3 of the NYS Design Manual for Enhanced Phosphorus Removal? No What is the nature of this construction project? New Construction Design Point: 1 Enter 90% Rainfall Event as P P= 1.00 linches Calculate Required WQv Drainage Area Contributing Impervious Area Percent WQv SMP Number Area (Acres) Impervious Rv (cf) Description (Acres) % Sheet Flow to 1 0.19 0.19 100 0.95 655 Grass Filter Strip 2 0.66 0.31 47 0.47 1,133 Infiltration Bioretention 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Total 0.85 0.50 59 0.58 1788 Required WQv Steps 3 and 5 - Apply RR Techniques and Standard SMPs Run Volume and Treated Volumes 7 Total Total WQV Runoff Reduction Techiques/Standard Co tributing Contributing Reduced WQv Treated SMPs Area Impervious (RRv) Area (acres) (acres) (cf) (cf) Conservation of Natural Areas RR-1 0.19 0 Sheet Flow to Riparian Buffer/Filter Strip RR-2 0.19 0.19 655 Tree Planting/Tree Pit/Tree Trench RR-3 0.00 0.00 0 Disconnection of Rooftop Runoff RR-4 0.00 0 s Vegetated Swale RR-5 0.00 0.00 0 U Rain Garden RR-6 0.00 0.00 0 Stormwater Planter RR-7 0.00 0.00 0 Rainwater Harvesting Systems RR-8 0.00 0.00 0 Porous Pavement RR-9 0.00 0.00 0 Green Roof(Extensive & Intensive) RR-10 0.00 0.00 0 Stream Daylighting RR-11 _ Infiltration Trench 1-1 0.00 0.00 0 0 Infiltration Basin 1-2 0.00 0.00 0 0 Dry Well 1-3 0.00 0.00 0 0 N M Underground Infiltration System 1-4 0.00 0.00 0 0 ` > Infiltration Bioretention F-4 0.66 0.31 1,133 0 Filtration Bioretention F-5 0.00 0.00 0 0 Bioslope F-6 0.00 0.00 0 0 Dry swale 0-1 0.00 0.00 0 0 Micropool Extended Detention P-1 0.00 0.00 0 Wet Pond P-2 0.00 0.00 0 Wet Extended Detention P-3 0.00 0.00 0 Multiple Pond System P-4 0.00 0.00 0 a Shallow Wetland W-1 0.00 0.00 0 U) Extended Detention Shallow Wetland W-2 0.00 0.00 0 Pond/Wetland System W-3 0.00 0.00 0 c Pocket Wetland W-4 0.00 0.00 0 CO Gravel Wetland W-5 0.00 0.00 0 Surface Sand Filter F-1 0.00 0.00 0 Underground Sand Filter F-2 0.00 0.00 0 Perimeter Sand Filter F-3 0.00 0.00 0 Wet Swale 0-2 0.66 0.31 0 N Flow Based Alternative Practice - 0.00 0.00 0 _ a Q U) Volume Based Alternative Practice - Totals by RR Technique 0.38 0.19 655 Totals by Standard SMP w/RRV 0.66 0.31 1,133 0 Totals by Standard SMP 0.66 0.31 0 Totals by Alternative SMP 0.00 0.00 0 Totals ( RR Techniques + all SMPs) 1.70 0.81 1,788 0 Step 4 - Calcuate Minimum RRv Required Enter the Soils Data for the entire site Hydrologic Soil Acres S Group A 55% B 0.85 40% C 30% D 20% Total Area 0.85 Calculate the Minimum RRv S = 0.40 Impervious = 0.50 acres Precipitation 1.00 inches Rv 0.95 Minimum RRv 0.016 of 697 Icf Sheet Flow to Grass Filter Strip (RR-3) Design Point: Enter Site Data For Drainage Area to be Reduced Contributing Impervious Percent Drainage Area WQv Precipitation Number Area Area Impervious Rv (cf) ( ) Description (Acres) (Acres) % in 1 0.19 0.19 100 0.95 655 1.00 Sheet Flow to Grass Filter Strip Design Criteria Is the riparian buffer delineated and permanently protected through establishment Yes of a legal conservation easement? Is the contributing area a designated hotspot? No Is a pretreatment pea gravel diaphragm proposed along the upgradient edge of Yes the buffer? Is runoff entering the buffer as overland sheet flow or a flow spreader proposed Yes upgradient of the buffer? Enter the total length of contributing flow path (ft) 20 Enter the length of contributing flow path from impervious surfaces (ft) 20 Enter the slope of contributing flow path (%) 2 Minimum buffer length based on contriuting flow path slope (ft) 35 Enter the slope for the first 10 ft of the buffer(%) 2 Sizing Criteria Value Units Notes Enter Travel Time through Buffer T 6 min Enter 2-yr 24-hr Rainfall Depth P 2.17 inch Enter Overall Buffer Slope S 0.04 ft/ft Enter Manning's Coefficient for Buffer n 0.40 Calculated Minimum Length of Buffer L 23 ft Minimum Length of Buffer L 35 ft Is the buffer within HSG C or D soils? Yes Required Length of Buffer L 40 ft Enter Provided Length of Buffer L 40 ft Calculate Runoff Reduction RRv Provided 1 655 lcf Infiltration Bioretention (F-4) Design Point: Enter Site Data For Drainage Area to be Treated by Practice Contributing Impervious Percent Drainage Area WQv Precipitation Number Area Area Impervious Rv (cf) (in) Description (Acres) (Acres) % 2 0.66 0.31 47 0.47 1,133 1.00 Infiltration Bioretention Design Criteria Enter underlying soil infiltration rate (based on 0.75 geotechnical testing, refer to Appendix D) Is the contributing area to the practice an No "Infiltration Restricted" stormwater hotspot? Is the contributing area to the practice an No "Infiltration Prohibited" stormwater hotspot? Is contributing area greater than max. No contributing area? Enter depth to seasonal high water table (ft) 2 (4 ft min separation in sole source aquifer) Enter depth to bedrock (ft) 10 Is pretreatment provided, in conformance with Section 6.4.3.1? Yes Enter average height of ponding (ft) 0.5 Enter depth of surface layer(inches) 3 Enter depth of filter media (ft) 2.5 Enter depth of drainage layer(inches) 6 Enter slope of maintenance access (%) 1 1 Enter width of maintenance access (ft) 20 Sizing Criteria Value Units Notes Permeability Flow Rate k 1 ft/day Filter Time tf 2 days Required Filter Area Af 473 sf Enter Provided Filter Area Af 800 sf Calculate Runoff Reduction RRv Provided 1,133 cf ENVIRONMENTAL DESIGN PARTNERSHIP, LLP. Attachment B Stormwater Modeling Calculations 17 900 Route 146, Clifton Park, New York 12065 phone(518)371-7621 IS10111 S20 S30 1 2 3 OSubcat Reach Pon Link Routing Diagram for 2026-06-01 Predevelopment Prepared by Environmental Design Partnership, Printed 6/1/2026 HydroCAD®10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC 2026-06-01 Predevelopment Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 2 Rainfall Events Listing (selected events) Event# Event Storm Type Curve Mode Duration B/B Depth AMC Name (hours) (inches) 1 1-YR Type II 24-hr Default 24.00 1 1.97 2 2 10-YR Type II 24-hr Default 24.00 1 3.36 2 3 100-YR Type II 24-hr Default 24.00 1 5.73 2 2026-06-01 Predevelopment Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 3 Area Listing (selected nodes) Area CN Description (acres) (subcatchment-numbers) 6.748 58 Meadow, non-grazed, HSG B (S10, S20, S30) 0.733 78 Meadow, non-grazed, HSG D (S10, S20) 0.856 98 Paved parking, HSG D (S10, S20, S30) 1.861 78 Row crops, straight row, Good, HSG B (S10) 4.332 60 Woods, Fair, HSG B (S10, S20, S30) 1.437 79 Woods, Fair, HSG D (S10) 15.966 66 TOTAL AREA 2026-06-01 Predevelopment Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 4 Soil Listing (selected nodes) Area Soil Subcatchment (acres) Group Numbers 0.000 HSG A 12.940 HSG B S10, S20, S30 0.000 HSG C 3.026 HSG D S10, S20, S30 0.000 Other 15.966 TOTAL AREA 2026-06-01 Predevelopment Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 5 Ground Covers (selected nodes) HSG-A HSG-B HSG-C HSG-D Other Total Ground Subcatchment (acres) (acres) (acres) (acres) (acres) (acres) Cover Numbers 0.000 6.748 0.000 0.733 0.000 7.481 Meadow, non-grazed S10 S20 S30 0.000 0.000 0.000 0.856 0.000 0.856 Paved parking S10 S20 S30 0.000 1.861 0.000 0.000 0.000 1.861 Row crops, straight row, Good S10 0.000 4.332 0.000 1.437 0.000 5.769 Woods, Fair S10 S20 S30 0.000 12.940 0.000 3.026 0.000 15.966 TOTAL AREA 2026-06-01 Predevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 6 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 SubcatchmentS10: Runoff Area=446,233 sf 5.37% Impervious Runoff Depth>0.15" Flow Length=1,335' Tc=49.5 min CN=68 Runoff=0.56 cfs 0.127 of SubcatchmentS20: Runoff Area=173,284 sf 6.24% Impervious Runoff Depth>0.07" Flow Length=565' Tc=20.6 min CN=63 Runoff=0.08 cfs 0.024 of SubcatchmentS30: Runoff Area=75,979 sf 3.29% Impervious Runoff Depth>0.03" Flow Length=400' Slope=0.0200 '/' Tc=16.6 min CN=59 Runoff=0.01 cfs 0.004 of Link 1: Inflow=0.56 cfs 0.127 of Primary=0.56 cfs 0.127 of Link 2: Inflow=0.08 cfs 0.024 of Primary=0.08 cfs 0.024 of Link 3: Inflow=0.01 cfs 0.004 of Primary=0.01 cfs 0.004 of Total Runoff Area = 15.966 ac Runoff Volume = 0.156 of Average Runoff Depth = 0.12" 94.64% Pervious = 15.111 ac 5.36% Impervious = 0.856 ac 2026-06-01 Predevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 7 Summary for Subcatchment S10: Runoff = 0.56 cfs @ 12.70 hrs, Volume= 0.127 af, Depth> 0.15" Routed to Link 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 1-YR Rainfall=1.97" Area (sf) CN Description 23,956 98 Paved parking, HSG D 84,111 58 Meadow, non-grazed, HSG B 12,046 78 Meadow, non-grazed, HSG D 182,431 60 Woods, Fair, HSG B 62,617 79 Woods, Fair, HSG D 81,072 78 Row crops, straight row, Good, HSG B 446,233 68 Weighted Average 422,277 94.63% Pervious Area 23,956 5.37% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.3 100 0.0100 0.23 Sheet Flow, SF - FARM Cultivated: Residue<=20% n= 0.060 P2= 2.32" 3.8 205 0.0100 0.90 Shallow Concentrated Flow, SCF - FARM Cultivated Straight Rows Kv= 9.0 fps 23.9 600 0.0070 0.42 Shallow Concentrated Flow, SCF -WOODS Woodland Kv= 5.0 fps 14.5 430 0.0050 0.49 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 49.5 1,335 Total Summary for Subcatchment S20: Runoff = 0.08 cfs @ 12.49 hrs, Volume= 0.024 af, Depth> 0.07" Routed to Link 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 1-YR Rainfall=1.97" Area (sf) CN Description 10,811 98 Paved parking, HSG D 141,959 58 Meadow, non-grazed, HSG B 19,882 78 Meadow, non-grazed, HSG D 632 60 Woods, Fair, HSG B 173,284 63 Weighted Average 162,473 93.76% Pervious Area 10,811 6.24% Impervious Area 2026-06-01 Predevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 8 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.5 100 0.0250 0.16 Sheet Flow, SF- GRASS Grass: Short n= 0.150 P2= 2.32" 10.1 465 0.0120 0.77 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 20.6 565 Total Summary for Subcatchment S30: Runoff = 0.01 cfs @ 13.77 hrs, Volume= 0.004 af, Depth> 0.03" Routed to Link 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 1-YR Rainfall=1.97" Area (sf) CN Description 2,500 98 Paved parking, HSG D 67,857 58 Meadow, non-grazed, HSG B 5,622 60 Woods, Fair, HSG B 75,979 59 Weighted Average 73,479 96.71% Pervious Area 2,500 3.29% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.5 100 0.0200 0.14 Sheet Flow, SF - GRASS Grass: Short n= 0.150 P2= 2.32" 5.1 300 0.0200 0.99 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 16.6 400 Total Summary for Link 1: Inflow Area = 10.244 ac, 5.37% Impervious, Inflow Depth > 0.15" for 1-YR event Inflow = 0.56 cfs @ 12.70 hrs, Volume= 0.127 of Primary = 0.56 cfs @ 12.70 hrs, Volume= 0.127 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Link 2: Inflow Area = 3.978 ac, 6.24% Impervious, Inflow Depth > 0.07" for 1-YR event Inflow = 0.08 cfs @ 12.49 hrs, Volume= 0.024 of Primary = 0.08 cfs @ 12.49 hrs, Volume= 0.024 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Predevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 9 Summary for Link 3: Inflow Area = 1.744 ac, 3.29% Impervious, Inflow Depth > 0.03" for 1-YR event Inflow = 0.01 cfs @ 13.77 hrs, Volume= 0.004 of Primary = 0.01 cfs @ 13.77 hrs, Volume= 0.004 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Predevelopment Type 1124-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 10 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 SubcatchmentS10: Runoff Area=446,233 sf 5.37% Impervious Runoff Depth>0.71" Flow Length=1,335' Tc=49.5 min CN=68 Runoff=4.33 cfs 0.609 of SubcatchmentS20: Runoff Area=173,284 sf 6.24% Impervious Runoff Depth>0.51" Flow Length=565' Tc=20.6 min CN=63 Runoff=1.96 cfs 0.170 of SubcatchmentS30: Runoff Area=75,979 sf 3.29% Impervious Runoff Depth>0.37" Flow Length=400' Slope=0.0200 '/' Tc=16.6 min CN=59 Runoff=0.60 cfs 0.054 of Link 1: Inflow=4.33 cfs 0.609 of Primary=4.33 cfs 0.609 of Link 2: Inflow=1.96 cfs 0.170 of Primary=1.96 cfs 0.170 of Link 3: Inflow=0.60 cfs 0.054 of Primary=0.60 cfs 0.054 of Total Runoff Area = 15.966 ac Runoff Volume = 0.832 of Average Runoff Depth = 0.63" 94.64% Pervious = 15.111 ac 5.36% Impervious = 0.856 ac 2026-06-01 Predevelopment Type/1 24-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 11 Summary for Subcatchment S10: Runoff = 4.33 cfs @ 12.56 hrs, Volume= 0.609 af, Depth> 0.71" Routed to Link 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=3.36" Area (sf) CN Description 23,956 98 Paved parking, HSG D 84,111 58 Meadow, non-grazed, HSG B 12,046 78 Meadow, non-grazed, HSG D 182,431 60 Woods, Fair, HSG B 62,617 79 Woods, Fair, HSG D 81,072 78 Row crops, straight row, Good, HSG B 446,233 68 Weighted Average 422,277 94.63% Pervious Area 23,956 5.37% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.3 100 0.0100 0.23 Sheet Flow, SF - FARM Cultivated: Residue<=20% n= 0.060 P2= 2.32" 3.8 205 0.0100 0.90 Shallow Concentrated Flow, SCF - FARM Cultivated Straight Rows Kv= 9.0 fps 23.9 600 0.0070 0.42 Shallow Concentrated Flow, SCF -WOODS Woodland Kv= 5.0 fps 14.5 430 0.0050 0.49 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 49.5 1,335 Total Summary for Subcatchment S20: Runoff = 1.96 cfs @ 12.17 hrs, Volume= 0.170 af, Depth> 0.51" Routed to Link 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=3.36" Area (sf) CN Description 10,811 98 Paved parking, HSG D 141,959 58 Meadow, non-grazed, HSG B 19,882 78 Meadow, non-grazed, HSG D 632 60 Woods, Fair, HSG B 173,284 63 Weighted Average 162,473 93.76% Pervious Area 10,811 6.24% Impervious Area 2026-06-01 Predevelopment Type 1124-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 12 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.5 100 0.0250 0.16 Sheet Flow, SF- GRASS Grass: Short n= 0.150 P2= 2.32" 10.1 465 0.0120 0.77 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 20.6 565 Total Summary for Subcatchment S30: Runoff = 0.60 cfs @ 12.14 hrs, Volume= 0.054 af, Depth> 0.37" Routed to Link 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=3.36" Area (sf) CN Description 2,500 98 Paved parking, HSG D 67,857 58 Meadow, non-grazed, HSG B 5,622 60 Woods, Fair, HSG B 75,979 59 Weighted Average 73,479 96.71% Pervious Area 2,500 3.29% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.5 100 0.0200 0.14 Sheet Flow, SF - GRASS Grass: Short n= 0.150 P2= 2.32" 5.1 300 0.0200 0.99 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 16.6 400 Total Summary for Link 1: Inflow Area = 10.244 ac, 5.37% Impervious, Inflow Depth > 0.71" for 10-YR event Inflow = 4.33 cfs @ 12.56 hrs, Volume= 0.609 of Primary = 4.33 cfs @ 12.56 hrs, Volume= 0.609 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Link 2: Inflow Area = 3.978 ac, 6.24% Impervious, Inflow Depth > 0.51" for 10-YR event Inflow = 1.96 cfs @ 12.17 hrs, Volume= 0.170 of Primary = 1.96 cfs @ 12.17 hrs, Volume= 0.170 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Predevelopment Type 1124-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 13 Summary for Link 3: Inflow Area = 1.744 ac, 3.29% Impervious, Inflow Depth > 0.37" for 10-YR event Inflow = 0.60 cfs @ 12.14 hrs, Volume= 0.054 of Primary = 0.60 cfs @ 12.14 hrs, Volume= 0.054 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Predevelopment Type 1124-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 14 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 SubcatchmentS10: Runoff Area=446,233 sf 5.37% Impervious Runoff Depth>2.17" Flow Length=1,335' Tc=49.5 min CN=68 Runoff=14.75 cfs 1.849 of SubcatchmentS20: Runoff Area=173,284 sf 6.24% Impervious Runoff Depth>1.79" Flow Length=565' Tc=20.6 min CN=63 Runoff=8.27 cfs 0.593 of SubcatchmentS30: Runoff Area=75,979 sf 3.29% Impervious Runoff Depth>1.49" Flow Length=400' Slope=0.0200 '/' Tc=16.6 min CN=59 Runoff=3.34 cfs 0.217 of Link 1: Inflow=14.75 cfs 1.849 of Primary=14.75 cfs 1.849 of Link 2: Inflow=8.27 cfs 0.593 of Primary=8.27 cfs 0.593 of Link 3: Inflow=3.34 cfs 0.217 of Primary=3.34 cfs 0.217 of Total Runoff Area = 15.966 ac Runoff Volume = 2.658 of Average Runoff Depth = 2.00" 94.64% Pervious = 15.111 ac 5.36% Impervious = 0.856 ac 2026-06-01 Predevelopment Type // 24-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 15 Summary for Subcatchment S10: Runoff = 14.75 cfs @ 12.51 hrs, Volume= 1.849 af, Depth> 2.17" Routed to Link 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 100-YR Rainfall=5.73" Area (sf) CN Description 23,956 98 Paved parking, HSG D 84,111 58 Meadow, non-grazed, HSG B 12,046 78 Meadow, non-grazed, HSG D 182,431 60 Woods, Fair, HSG B 62,617 79 Woods, Fair, HSG D 81,072 78 Row crops, straight row, Good, HSG B 446,233 68 Weighted Average 422,277 94.63% Pervious Area 23,956 5.37% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.3 100 0.0100 0.23 Sheet Flow, SF - FARM Cultivated: Residue<=20% n= 0.060 P2= 2.32" 3.8 205 0.0100 0.90 Shallow Concentrated Flow, SCF - FARM Cultivated Straight Rows Kv= 9.0 fps 23.9 600 0.0070 0.42 Shallow Concentrated Flow, SCF -WOODS Woodland Kv= 5.0 fps 14.5 430 0.0050 0.49 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 49.5 1,335 Total Summary for Subcatchment S20: Runoff = 8.27 cfs @ 12.15 hrs, Volume= 0.593 af, Depth> 1.79" Routed to Link 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 100-YR Rainfall=5.73" Area (sf) CN Description 10,811 98 Paved parking, HSG D 141,959 58 Meadow, non-grazed, HSG B 19,882 78 Meadow, non-grazed, HSG D 632 60 Woods, Fair, HSG B 173,284 63 Weighted Average 162,473 93.76% Pervious Area 10,811 6.24% Impervious Area 2026-06-01 Predevelopment Type 1124-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 16 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.5 100 0.0250 0.16 Sheet Flow, SF- GRASS Grass: Short n= 0.150 P2= 2.32" 10.1 465 0.0120 0.77 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 20.6 565 Total Summary for Subcatchment S30: Runoff = 3.34 cfs @ 12.10 hrs, Volume= 0.217 af, Depth> 1.49" Routed to Link 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 100-YR Rainfall=5.73" Area (sf) CN Description 2,500 98 Paved parking, HSG D 67,857 58 Meadow, non-grazed, HSG B 5,622 60 Woods, Fair, HSG B 75,979 59 Weighted Average 73,479 96.71% Pervious Area 2,500 3.29% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.5 100 0.0200 0.14 Sheet Flow, SF - GRASS Grass: Short n= 0.150 P2= 2.32" 5.1 300 0.0200 0.99 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 16.6 400 Total Summary for Link 1: Inflow Area = 10.244 ac, 5.37% Impervious, Inflow Depth > 2.17" for 100-YR event Inflow = 14.75 cfs @ 12.51 hrs, Volume= 1.849 of Primary = 14.75 cfs @ 12.51 hrs, Volume= 1.849 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Link 2: Inflow Area = 3.978 ac, 6.24% Impervious, Inflow Depth > 1.79" for 100-YR event Inflow = 8.27 cfs @ 12.15 hrs, Volume= 0.593 of Primary = 8.27 cfs @ 12.15 hrs, Volume= 0.593 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Predevelopment Type 1124-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 17 Summary for Link 3: Inflow Area = 1.744 ac, 3.29% Impervious, Inflow Depth > 1.49" for 100-YR event Inflow = 3.34 cfs @ 12.10 hrs, Volume= 0.217 of Primary = 3.34 cfs @ 12.10 hrs, Volume= 0.217 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs S101 S200 S300 S103 � P3 1 2 3 S102 P2 S100 � P1 BIO Subcat Reach on Link Routing Diagram for 2026-06-01 Postdevelopment Prepared by Environmental Design Partnership, Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC 2026-06-01 Postdevelopment Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 2 Rainfall Events Listing (selected events) Event# Event Storm Type Curve Mode Duration B/B Depth AMC Name (hours) (inches) 1 1-YR Type II 24-hr Default 24.00 1 1.97 2 2 10-YR Type II 24-hr Default 24.00 1 3.36 2 3 100-YR Type II 24-hr Default 24.00 1 5.73 2 2026-06-01 Postdevelopment Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 3 Area Listing (selected nodes) Area CN Description (acres) (subcatchment-numbers) 6.719 58 Meadow, non-grazed, HSG B (S100, S101, S102, S103, S200, S300) 0.667 78 Meadow, non-grazed, HSG D (S101, S103, S200) 1.253 98 Paved parking, HSG D (S100, S101, S102, S103, S200, S300) 1.861 78 Row crops, straight row, Good, HSG B (S101) 4.031 60 Woods, Fair, HSG B (S101, S300) 1.437 79 Woods, Fair, HSG D (S101) 15.969 67 TOTAL AREA 2026-06-01 Postdevelopment Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 4 Soil Listing (selected nodes) Area Soil Subcatchment (acres) Group Numbers 0.000 HSG A 12.612 HSG B S100, S101, S102, S103, S200, S300 0.000 HSG C 3.357 HSG D S100, S101, S102, S103, S200, S300 0.000 Other 15.969 TOTAL AREA 2026-06-01 Postdevelopment Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 5 Ground Covers (selected nodes) HSG-A HSG-B HSG-C HSG-D Other Total Ground Subcatchment (acres) (acres) (acres) (acres) (acres) (acres) Cover Numbers 0.000 6.719 0.000 0.667 0.000 7.386 Meadow, non-grazed S10 0, S10 1, S10 2, S10 3, S20 0, S30 0 0.000 0.000 0.000 1.253 0.000 1.253 Paved parking S10 0, S10 1, S10 2, S10 3, S20 0, S30 0 0.000 1.861 0.000 0.000 0.000 1.861 Row crops, straight row, Good S10 1 0.000 4.031 0.000 1.437 0.000 5.469 Woods, Fair S10 1, S30 0 0.000 12.612 0.000 3.357 0.000 15.969 TOTAL AREA 2026-06-01 Postdevelopment Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 6 Pipe Listing (selected nodes) Line# Node In-Invert Out-Invert Length Slope n Width Diam/Height Inside-Fill Number (feet) (feet) (feet) (ft/ft) (inches) (inches) (inches) 1 P2 1,080.75 1,080.40 70.0 0.0050 0.013 0.0 12.0 0.0 2 P3 1,081.25 1,080.00 67.0 0.0187 0.013 0.0 12.0 0.0 2026-06-01 Postdevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 7 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 SubcatchmentS100: Runoff Area=28,717 sf 47.53% Impervious Runoff Depth>0.38" Tc=6.0 min CN=77 Runoff=0.46 cfs 0.021 of SubcatchmentS101: Runoff Area=393,734 sf 4.61% Impervious Runoff Depth>0.17" Flow Length=1,335' Tc=49.5 min CN=69 Runoff=0.60 cfs 0.126 of SubcatchmentS102: Runoff Area=19,363 sf 24.08% Impervious Runoff Depth>0.15" Tc=6.0 min CN=68 Runoff=0.08 cfs 0.006 of SubcatchmentS103: Runoff Area=21,314 sf 28.45% Impervious Runoff Depth>0.24" Tc=6.0 min CN=72 Runoff=0.19 cfs 0.010 of SubcatchmentS200: Runoff Area=160,176 sf 5.78% Impervious Runoff Depth>0.07" Flow Length=515' Tc=19.5 min CN=63 Runoff=0.07 cfs 0.022 of SubcatchmentS300: Runoff Area=72,287 sf 3.85% Impervious Runoff Depth>0.04" Flow Length=310' Tc=16.9 min CN=60 Runoff=0.01 cfs 0.006 of Pond P1: BIO Peak EIev=1,081.60' Storage=501 cf Inflow=0.46 cfs 0.021 of Discarded=0.02 cfs 0.011 of Secondary=0.00 cfs 0.000 of Outflow=0.02 cfs 0.011 of Pond P2: Peak EIev=1,080.91' Storage=7 cf Inflow=0.08 cfs 0.006 of 12.0" Round Culvert n=0.013 L=70.0' S=0.0050 '/' Outflow=0.08 cfs 0.006 of Pond P3: Peak EIev=1,081.46' Storage=5 cf Inflow=0.19 cfs 0.010 of 12.0" Round Culvert n=0.013 L=67.0' S=0.0187 '/' Outflow=0.19 cfs 0.010 of Link 1: Inflow=0.64 cfs 0.142 of Primary=0.64 cfs 0.142 of Link 2: Inflow=0.07 cfs 0.022 of Primary=0.07 cfs 0.022 of Link 3: Inflow=0.01 cfs 0.006 of Primary=0.01 cfs 0.006 of Total Runoff Area = 15.969 ac Runoff Volume = 0.191 of Average Runoff Depth = 0.14" 92.16% Pervious = 14.716 ac 7.84% Impervious = 1.253 ac 2026-06-01 Postdevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 8 Summary for Subcatchment S100: Runoff = 0.46 cfs @ 11.99 hrs, Volume= 0.021 af, Depth> 0.38" Routed to Pond P1 : BIO 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 1-YR Rainfall=1.97" Area (sf) CN Description 13,650 98 Paved parking, HSG D 15,067 58 Meadow, non-grazed, HSG B 28,717 77 Weighted Average 15,067 52.47% Pervious Area 13,650 47.53% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, DIRECT Summary for Subcatchment S101: Runoff = 0.60 cfs @ 12.68 hrs, Volume= 0.126 af, Depth> 0.17" Routed to Link 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 1-YR Rainfall=1.97" Area (sf) CN Description 18,153 98 Paved parking, HSG D 51,717 58 Meadow, non-grazed, HSG B 6,667 78 Meadow, non-grazed, HSG D 173,508 60 Woods, Fair, HSG B 62,617 79 Woods, Fair, HSG D 81,072 78 Row crops, straight row, Good, HSG B 393,734 69 Weighted Average 375,581 95.39% Pervious Area 18,153 4.61% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.3 100 0.0100 0.23 Sheet Flow, SF - FARM Cultivated: Residue<=20% n= 0.060 P2= 2.32" 3.8 205 0.0100 0.90 Shallow Concentrated Flow, SCF - FARM Cultivated Straight Rows Kv= 9.0 fps 23.9 600 0.0070 0.42 Shallow Concentrated Flow, SCF -WOODS Woodland Kv= 5.0 fps 14.5 430 0.0050 0.49 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 49.5 1,335 Total 2026-06-01 Postdevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 9 Summary for Subcatchment S102: Runoff = 0.08 cfs @ 12.01 hrs, Volume= 0.006 af, Depth> 0.15" Routed to Pond P2 : 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 1-YR Rainfall=1.97" Area (sf) CN Description 4,663 98 Paved parking, HSG D 14,700 58 Meadow, non-grazed, HSG B 19,363 68 Weighted Average 14,700 75.92% Pervious Area 4,663 24.08% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, DIRECT Summary for Subcatchment S103: Runoff = 0.19 cfs @ 12.00 hrs, Volume= 0.010 af, Depth> 0.24" Routed to Pond P3 : 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 1-YR Rainfall=1.97" Area (sf) CN Description 6,064 98 Paved parking, HSG D 12,750 58 Meadow, non-grazed, HSG B 2,500 78 Meadow, non-grazed, HSG D 21,314 72 Weighted Average 15,250 71.55% Pervious Area 6,064 28.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, DIRECT Summary for Subcatchment S200: Runoff = 0.07 cfs @ 12.47 hrs, Volume= 0.022 af, Depth> 0.07" Routed to Link 2 : Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type 11 24-hr 1-YR Rainfall=1.97" 2026-06-01 Postdevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 10 Area (sf) CN Description 9,254 98 Paved parking, HSG D 131,040 58 Meadow, non-grazed, HSG B 19,882 78 Meadow, non-grazed, HSG D 160,176 63 Weighted Average 150,922 94.22% Pervious Area 9,254 5.78% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.5 100 0.0250 0.16 Sheet Flow, SF- GRASS Grass: Short n= 0.150 P2= 2.32" 9.0 415 0.0120 0.77 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 19.5 515 Total Summary for Subcatchment S300: Runoff = 0.01 cfs @ 13.41 hrs, Volume= 0.006 af, Depth> 0.04" Routed to Link 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 1-YR Rainfall=1.97" Area (sf) CN Description 2,782 98 Paved parking, HSG D 67,418 58 Meadow, non-grazed, HSG B 2,087 60 Woods, Fair, HSG B 72,287 60 Weighted Average 69,505 96.15% Pervious Area 2,782 3.85% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.3 100 0.0170 0.14 Sheet Flow, SF - GRASS Grass: Short n= 0.150 P2= 2.32" 4.6 210 0.0120 0.77 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 16.9 310 Total Summary for Pond P1: B10 Inflow Area = 0.659 ac, 47.53% Impervious, Inflow Depth > 0.38" for 1-YR event Inflow = 0.46 cfs @ 11.99 hrs, Volume= 0.021 of Outflow = 0.02 cfs @ 11.85 hrs, Volume= 0.011 af, Atten= 97%, Lag= 0.0 min Discarded = 0.02 cfs @ 11.85 hrs, Volume= 0.011 of Secondary= 0.00 cfs @ 5.00 hrs, Volume= 0.000 of Routed to Link 1 : Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Postdevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 11 Peak Elev= 1,081.60'@ 15.65 hrs Surf.Area= 925 sf Storage= 501 cf Plug-Flow detention time=227.2 min calculated for 0.011 of(52% of inflow) Center-of-Mass det. time= 128.3 min ( 953.8 - 825.5 ) Volume Invert Avail.Storage Storage Description #1 1,080.25' 925 cf Custom Stage Data (Irregular)Listed below(Recalc) 2,313 cf Overall x 40.0% Voids #2 1,082.75' 2,743 cf Custom Stage Data (Irregular)Listed below(Recalc) 3,668 cf Total Available Storage Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 1,080.25 925 125.0 0 0 925 1,082.75 925 125.0 2,313 2,313 1,238 Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 1,082.75 925 125.0 0 0 925 1,083.00 1,740 465.0 328 328 16,888 1,084.00 3,160 480.0 2,415 2,743 18,111 Device Routing Invert Outlet Devices #1 Discarded 1,080.25' 0.750 in/hr Exfiltration over Surface area #2 Secondary 1,083.25' 10.0' long x 6.0' 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) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65 2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83 Discarded OutFlow Max=0.02 cfs @ 11.85 hrs HW=1,080.32' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.02 cfs) Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=1,080.25' (Free Discharge) L2=Broad-Crested Rectangular Weir( Controls 0.00 cfs) Summary for Pond P2: Inflow Area = 0.445 ac, 24.08% Impervious, Inflow Depth > 0.15" for 1-YR event Inflow = 0.08 cfs @ 12.01 hrs, Volume= 0.006 of Outflow = 0.08 cfs @ 12.04 hrs, Volume= 0.006 af, Atten= 9%, Lag= 1.8 min Primary = 0.08 cfs @ 12.04 hrs, Volume= 0.006 of Routed to Link 1 : Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 1,080.91'@ 12.04 hrs Surf.Area= 84 sf Storage= 7 cf Plug-Flow detention time= 1.7 min calculated for 0.006 of(100% of inflow) Center-of-Mass det. time= 1.2 min ( 868.9 - 867.7 ) 2026-06-01 Postdevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 12 Volume Invert Avail.Storage Storage Description #1 1,080.75' 454 cf Custom Stage Data (Prismatic)-isted below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 1,080.75 1 0 0 1,081.00 130 16 16 1,082.00 745 438 454 Device Routing Invert Outlet Devices #1 Primary 1,080.75' 12.0" Round Culvert L= 70.0' CPP, end-section conforming to fill, Ke= 0.500 Inlet/ Outlet Invert= 1,080.75'/ 1,080.40' S= 0.0050 T Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=0.07 cfs @ 12.04 hrs HW=1,080.91' (Free Discharge) t--1=Culvert (Barrel Controls 0.07 cfs @ 1.42 fps) Summary for Pond P3: Inflow Area = 0.489 ac, 28.45% Impervious, Inflow Depth > 0.24" for 1-YR event Inflow = 0.19 cfs @ 12.00 hrs, Volume= 0.010 of Outflow = 0.19 cfs @ 12.00 hrs, Volume= 0.01Oaf, Atten= 1%, Lag= 0.4 min Primary = 0.19 cfs @ 12.00 hrs, Volume= 0.010 of Routed to Link 1 : Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 1,081.46'@ 12.00 hrs Surf.Area= 43 sf Storage= 5 cf Plug-Flow detention time=0.4 min calculated for 0.010 of(100% of inflow) Center-of-Mass det. time= 0.3 min ( 846.1 - 845.8 ) Volume Invert Avail.Storage Storage Description #1 1,081.25' 432 cf Custom Stage Data (Prismatic)-isted below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 1,081.25 1 0 0 1,082.00 150 57 57 1,083.00 600 375 432 Device Routing Invert Outlet Devices #1 Primary 1,081.25' 12.0" Round Culvert L= 67.0' CPP, end-section conforming to fill, Ke= 0.500 Inlet/ Outlet Invert= 1,081.25'/ 1,080.00' S= 0.0187'/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=0.19 cfs @ 12.00 hrs HW=1,081.46' (Free Discharge) t-1=Culvert (Inlet Controls 0.19 cfs @ 1.56 fps) 2026-06-01 Postdevelopment Type 1124-hr 1-YR Rainfall=1.97" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 13 Summary for Link 1: Inflow Area = 10.632 ac, 9.18% Impervious, Inflow Depth > 0.16" for 1-YR event Inflow = 0.64 cfs @ 12.67 hrs, Volume= 0.142 of Primary = 0.64 cfs @ 12.67 hrs, Volume= 0.142 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Link 2: Inflow Area = 3.677 ac, 5.78% Impervious, Inflow Depth > 0.07" for 1-YR event Inflow = 0.07 cfs @ 12.47 hrs, Volume= 0.022 of Primary = 0.07 cfs @ 12.47 hrs, Volume= 0.022 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Link 3: Inflow Area = 1.659 ac, 3.85% Impervious, Inflow Depth > 0.04" for 1-YR event Inflow = 0.01 cfs @ 13.41 hrs, Volume= 0.006 of Primary = 0.01 cfs @ 13.41 hrs, Volume= 0.006 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Postdevelopment Type 1124-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 14 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 SubcatchmentS100: Runoff Area=28,717 sf 47.53% Impervious Runoff Depth>1.21" Tc=6.0 min CN=77 Runoff=1.52 cfs 0.066 of SubcatchmentS101: Runoff Area=393,734 sf 4.61% Impervious Runoff Depth>0.76" Flow Length=1,335' Tc=49.5 min CN=69 Runoff=4.14 cfs 0.572 of SubcatchmentS102: Runoff Area=19,363 sf 24.08% Impervious Runoff Depth>0.73" Tc=6.0 min CN=68 Runoff=0.61 cfs 0.027 of SubcatchmentS103: Runoff Area=21,314 sf 28.45% Impervious Runoff Depth>0.93" Tc=6.0 min CN=72 Runoff=0.86 cfs 0.038 of SubcatchmentS200: Runoff Area=160,176 sf 5.78% Impervious Runoff Depth>0.51" Flow Length=515' Tc=19.5 min CN=63 Runoff=1.88 cfs 0.157 of SubcatchmentS300: Runoff Area=72,287 sf 3.85% Impervious Runoff Depth>0.40" Flow Length=310' Tc=16.9 min CN=60 Runoff=0.65 cfs 0.056 of Pond P1: BIO Peak EIev=1,083.25' Storage=1,721 cf Inflow=1.52 cfs 0.066 of Discarded=0.05 cfs 0.035 of Secondary=0.00 cfs 0.000 of Outflow=0.05 cfs 0.035 of Pond P2: Peak EIev=1,081.19' Storage=53 cf Inflow=0.61 cfs 0.027 of 12.0" Round Culvert n=0.013 L=70.0' S=0.0050 '/' Outflow=0.57 cfs 0.027 of Pond P3: Peak EIev=1,081.72' Storage=23 cf Inflow=0.86 cfs 0.038 of 12.0" Round Culvert n=0.013 L=67.0' S=0.0187 '/' Outflow=0.86 cfs 0.038 of Link 1: Inflow=4.29 cfs 0.637 of Primary=4.29 cfs 0.637 of Link 2: Inflow=1.88 cfs 0.157 of Primary=1.88 cfs 0.157 of Link 3: Inflow=0.65 cfs 0.056 of Primary=0.65 cfs 0.056 of Total Runoff Area = 15.969 ac Runoff Volume = 0.916 of Average Runoff Depth = 0.69" 92.16% Pervious = 14.716 ac 7.84% Impervious = 1.253 ac 2026-06-01 Postdevelopment Type/1 24-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 15 Summary for Subcatchment S100: Runoff = 1.52 cfs @ 11.98 hrs, Volume= 0.066 af, Depth> 1.21" Routed to Pond P1 : BIO 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=3.36" Area (sf) CN Description 13,650 98 Paved parking, HSG D 15,067 58 Meadow, non-grazed, HSG B 28,717 77 Weighted Average 15,067 52.47% Pervious Area 13,650 47.53% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, DIRECT Summary for Subcatchment S101: Runoff = 4.14 cfs @ 12.55 hrs, Volume= 0.572 af, Depth> 0.76" Routed to Link 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=3.36" Area (sf) CN Description 18,153 98 Paved parking, HSG D 51,717 58 Meadow, non-grazed, HSG B 6,667 78 Meadow, non-grazed, HSG D 173,508 60 Woods, Fair, HSG B 62,617 79 Woods, Fair, HSG D 81,072 78 Row crops, straight row, Good, HSG B 393,734 69 Weighted Average 375,581 95.39% Pervious Area 18,153 4.61% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.3 100 0.0100 0.23 Sheet Flow, SF - FARM Cultivated: Residue<=20% n= 0.060 P2= 2.32" 3.8 205 0.0100 0.90 Shallow Concentrated Flow, SCF - FARM Cultivated Straight Rows Kv= 9.0 fps 23.9 600 0.0070 0.42 Shallow Concentrated Flow, SCF -WOODS Woodland Kv= 5.0 fps 14.5 430 0.0050 0.49 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 49.5 1,335 Total 2026-06-01 Postdevelopment Type/1 24-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 16 Summary for Subcatchment S102: Runoff = 0.61 cfs @ 11.99 hrs, Volume= 0.027 af, Depth> 0.73" Routed to Pond P2 : 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=3.36" Area (sf) CN Description 4,663 98 Paved parking, HSG D 14,700 58 Meadow, non-grazed, HSG B 19,363 68 Weighted Average 14,700 75.92% Pervious Area 4,663 24.08% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, DIRECT Summary for Subcatchment S103: Runoff = 0.86 cfs @ 11.98 hrs, Volume= 0.038 af, Depth> 0.93" Routed to Pond P3 : 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=3.36" Area (sf) CN Description 6,064 98 Paved parking, HSG D 12,750 58 Meadow, non-grazed, HSG B 2,500 78 Meadow, non-grazed, HSG D 21,314 72 Weighted Average 15,250 71.55% Pervious Area 6,064 28.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, DIRECT Summary for Subcatchment S200: Runoff = 1.88 cfs @ 12.16 hrs, Volume= 0.157 af, Depth> 0.51" Routed to Link 2 : Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type 11 24-hr 10-YR Rainfall=3.36" 2026-06-01 Postdevelopment Type/1 24-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 17 Area (sf) CN Description 9,254 98 Paved parking, HSG D 131,040 58 Meadow, non-grazed, HSG B 19,882 78 Meadow, non-grazed, HSG D 160,176 63 Weighted Average 150,922 94.22% Pervious Area 9,254 5.78% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.5 100 0.0250 0.16 Sheet Flow, SF- GRASS Grass: Short n= 0.150 P2= 2.32" 9.0 415 0.0120 0.77 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 19.5 515 Total Summary for Subcatchment S300: Runoff = 0.65 cfs @ 12.14 hrs, Volume= 0.056 af, Depth> 0.40" Routed to Link 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=3.36" Area (sf) CN Description 2,782 98 Paved parking, HSG D 67,418 58 Meadow, non-grazed, HSG B 2,087 60 Woods, Fair, HSG B 72,287 60 Weighted Average 69,505 96.15% Pervious Area 2,782 3.85% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.3 100 0.0170 0.14 Sheet Flow, SF - GRASS Grass: Short n= 0.150 P2= 2.32" 4.6 210 0.0120 0.77 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 16.9 310 Total Summary for Pond P1: B10 Inflow Area = 0.659 ac, 47.53% Impervious, Inflow Depth > 1.21" for 10-YR event Inflow = 1.52 cfs @ 11.98 hrs, Volume= 0.066 of Outflow = 0.05 cfs @ 14.43 hrs, Volume= 0.035 af, Atten= 97%, Lag= 147.3 min Discarded = 0.05 cfs @ 14.43 hrs, Volume= 0.035 of Secondary= 0.00 cfs @ 5.00 hrs, Volume= 0.000 of Routed to Link 1 : Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Postdevelopment Type/1 24-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 18 Peak Elev= 1,083.25'@ 14.43 hrs Surf.Area= 2,977 sf Storage= 1,721 cf Plug-Flow detention time=231.3 min calculated for 0.035 of(52% of inflow) Center-of-Mass det. time= 147.0 min ( 946.8 - 799.8 ) Volume Invert Avail.Storage Storage Description #1 1,080.25' 925 cf Custom Stage Data (Irregular)Listed below(Recalc) 2,313 cf Overall x 40.0% Voids #2 1,082.75' 2,743 cf Custom Stage Data (Irregular)Listed below(Recalc) 3,668 cf Total Available Storage Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 1,080.25 925 125.0 0 0 925 1,082.75 925 125.0 2,313 2,313 1,238 Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 1,082.75 925 125.0 0 0 925 1,083.00 1,740 465.0 328 328 16,888 1,084.00 3,160 480.0 2,415 2,743 18,111 Device Routing Invert Outlet Devices #1 Discarded 1,080.25' 0.750 in/hr Exfiltration over Surface area #2 Secondary 1,083.25' 10.0' long x 6.0' 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) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65 2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83 Discarded OutFlow Max=0.05 cfs @ 14.43 hrs HW=1,083.25' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.05 cfs) Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=1,080.25' (Free Discharge) L2=Broad-Crested Rectangular Weir( Controls 0.00 cfs) Summary for Pond P2: Inflow Area = 0.445 ac, 24.08% Impervious, Inflow Depth > 0.73" for 10-YR event Inflow = 0.61 cfs @ 11.99 hrs, Volume= 0.027 of Outflow = 0.57 cfs @ 12.01 hrs, Volume= 0.027 af, Atten= 7%, Lag= 1.4 min Primary = 0.57 cfs @ 12.01 hrs, Volume= 0.027 of Routed to Link 1 : Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 1,081.19'@ 12.01 hrs Surf.Area= 248 sf Storage= 53 cf Plug-Flow detention time= 1.5 min calculated for 0.027 of(100% of inflow) Center-of-Mass det. time= 1.2 min ( 822.0 - 820.8 ) 2026-06-01 Postdevelopment Type/1 24-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 19 Volume Invert Avail.Storage Storage Description #1 1,080.75' 454 cf Custom Stage Data (Prismatic)-isted below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 1,080.75 1 0 0 1,081.00 130 16 16 1,082.00 745 438 454 Device Routing Invert Outlet Devices #1 Primary 1,080.75' 12.0" Round Culvert L= 70.0' CPP, end-section conforming to fill, Ke= 0.500 Inlet/ Outlet Invert= 1,080.75'/ 1,080.40' S= 0.0050 T Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=0.55 cfs @ 12.01 hrs HW=1,081.19' (Free Discharge) t--1=Culvert (Barrel Controls 0.55 cfs @ 2.48 fps) Summary for Pond P3: Inflow Area = 0.489 ac, 28.45% Impervious, Inflow Depth > 0.93" for 10-YR event Inflow = 0.86 cfs @ 11.98 hrs, Volume= 0.038 of Outflow = 0.86 cfs @ 11.99 hrs, Volume= 0.038 af, Atten= 0%, Lag= 0.5 min Primary = 0.86 cfs @ 11.99 hrs, Volume= 0.038 of Routed to Link 1 : Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 1,081.72'@ 11.99 hrs Surf.Area= 95 sf Storage= 23 cf Plug-Flow detention time=0.4 min calculated for 0.038 of(100% of inflow) Center-of-Mass det. time= 0.3 min ( 811.4 - 811.0 ) Volume Invert Avail.Storage Storage Description #1 1,081.25' 432 cf Custom Stage Data (Prismatic)-isted below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 1,081.25 1 0 0 1,082.00 150 57 57 1,083.00 600 375 432 Device Routing Invert Outlet Devices #1 Primary 1,081.25' 12.0" Round Culvert L= 67.0' CPP, end-section conforming to fill, Ke= 0.500 Inlet/ Outlet Invert= 1,081.25'/ 1,080.00' S= 0.0187'/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=0.83 cfs @ 11.99 hrs HW=1,081.72' (Free Discharge) t-1=Culvert (Inlet Controls 0.83 cfs @ 2.32 fps) 2026-06-01 Postdevelopment Type/1 24-hr 10-YR Rainfall=3.36" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 20 Summary for Link 1: Inflow Area = 10.632 ac, 9.18% Impervious, Inflow Depth > 0.72" for 10-YR event Inflow = 4.29 cfs @ 12.54 hrs, Volume= 0.637 of Primary = 4.29 cfs @ 12.54 hrs, Volume= 0.637 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Link 2: Inflow Area = 3.677 ac, 5.78% Impervious, Inflow Depth > 0.51" for 10-YR event Inflow = 1.88 cfs @ 12.16 hrs, Volume= 0.157 of Primary = 1.88 cfs @ 12.16 hrs, Volume= 0.157 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Link 3: Inflow Area = 1.659 ac, 3.85% Impervious, Inflow Depth > 0.40" for 10-YR event Inflow = 0.65 cfs @ 12.14 hrs, Volume= 0.056 of Primary = 0.65 cfs @ 12.14 hrs, Volume= 0.056 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Postdevelopment Type 1124-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 21 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 SubcatchmentS100: Runoff Area=28,717 sf 47.53% Impervious Runoff Depth>3.00" Tc=6.0 min CN=77 Runoff=3.66 cfs 0.165 of SubcatchmentS101: Runoff Area=393,734 sf 4.61% Impervious Runoff Depth>2.25" Flow Length=1,335' Tc=49.5 min CN=69 Runoff=13.56 cfs 1.694 of SubcatchmentS102: Runoff Area=19,363 sf 24.08% Impervious Runoff Depth>2.21" Tc=6.0 min CN=68 Runoff=1.87 cfs 0.082 of SubcatchmentS103: Runoff Area=21,314 sf 28.45% Impervious Runoff Depth>2.55" Tc=6.0 min CN=72 Runoff=2.34 cfs 0.104 of SubcatchmentS200: Runoff Area=160,176 sf 5.78% Impervious Runoff Depth>1.79" Flow Length=515' Tc=19.5 min CN=63 Runoff=7.88 cfs 0.549 of SubcatchmentS300: Runoff Area=72,287 sf 3.85% Impervious Runoff Depth>1.56" Flow Length=310' Tc=16.9 min CN=60 Runoff=3.32 cfs 0.216 of Pond P1: BIO Peak EIev=1,083.51' Storage=2,306 cf Inflow=3.66 cfs 0.165 of Discarded=0.06 cfs 0.040 of Secondary=3.18 cfs 0.086 of Outflow=3.24 cfs 0.126 of Pond P2: Peak EIev=1,081.59' Storage=199 cf Inflow=1.87 cfs 0.082 of 12.0" Round Culvert n=0.013 L=70.0' S=0.0050 '/' Outflow=1.70 cfs 0.082 of Pond P3: Peak EIev=1,082.13' Storage=79 cf Inflow=2.34 cfs 0.104 of 12.0" Round Culvert n=0.013 L=67.0' S=0.0187 '/' Outflow=2.32 cfs 0.104 of Link 1: Inflow=14.29 cfs 1.966 of Primary=14.29 cfs 1.966 of Link 2: Inflow=7.88 cfs 0.549 of Primary=7.88 cfs 0.549 of Link 3: Inflow=3.32 cfs 0.216 of Primary=3.32 cfs 0.216 of Total Runoff Area = 15.969 ac Runoff Volume = 2.810 of Average Runoff Depth = 2.11" 92.16% Pervious = 14.716 ac 7.84% Impervious = 1.253 ac 2026-06-01 Postdevelopment Type/1 24-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 22 Summary for Subcatchment S100: Runoff = 3.66 cfs @ 11.97 hrs, Volume= 0.165 af, Depth> 3.00" Routed to Pond P1 : BIO 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 100-YR Rainfall=5.73" Area (sf) CN Description 13,650 98 Paved parking, HSG D 15,067 58 Meadow, non-grazed, HSG B 28,717 77 Weighted Average 15,067 52.47% Pervious Area 13,650 47.53% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, DIRECT Summary for Subcatchment S101: Runoff = 13.56 cfs @ 12.50 hrs, Volume= 1.694 af, Depth> 2.25" Routed to Link 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 100-YR Rainfall=5.73" Area (sf) CN Description 18,153 98 Paved parking, HSG D 51,717 58 Meadow, non-grazed, HSG B 6,667 78 Meadow, non-grazed, HSG D 173,508 60 Woods, Fair, HSG B 62,617 79 Woods, Fair, HSG D 81,072 78 Row crops, straight row, Good, HSG B 393,734 69 Weighted Average 375,581 95.39% Pervious Area 18,153 4.61% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.3 100 0.0100 0.23 Sheet Flow, SF - FARM Cultivated: Residue<=20% n= 0.060 P2= 2.32" 3.8 205 0.0100 0.90 Shallow Concentrated Flow, SCF - FARM Cultivated Straight Rows Kv= 9.0 fps 23.9 600 0.0070 0.42 Shallow Concentrated Flow, SCF -WOODS Woodland Kv= 5.0 fps 14.5 430 0.0050 0.49 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 49.5 1,335 Total 2026-06-01 Postdevelopment Type/1 24-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 23 Summary for Subcatchment S102: Runoff = 1.87 cfs @ 11.98 hrs, Volume= 0.082 af, Depth> 2.21" Routed to Pond P2 : 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 100-YR Rainfall=5.73" Area (sf) CN Description 4,663 98 Paved parking, HSG D 14,700 58 Meadow, non-grazed, HSG B 19,363 68 Weighted Average 14,700 75.92% Pervious Area 4,663 24.08% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, DIRECT Summary for Subcatchment S103: Runoff = 2.34 cfs @ 11.97 hrs, Volume= 0.104 af, Depth> 2.55" Routed to Pond P3 : 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 100-YR Rainfall=5.73" Area (sf) CN Description 6,064 98 Paved parking, HSG D 12,750 58 Meadow, non-grazed, HSG B 2,500 78 Meadow, non-grazed, HSG D 21,314 72 Weighted Average 15,250 71.55% Pervious Area 6,064 28.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, DIRECT Summary for Subcatchment S200: Runoff = 7.88 cfs @ 12.13 hrs, Volume= 0.549 af, Depth> 1.79" Routed to Link 2 : Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type 11 24-hr 100-YR Rainfall=5.73" 2026-06-01 Postdevelopment Type/1 24-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 24 Area (sf) CN Description 9,254 98 Paved parking, HSG D 131,040 58 Meadow, non-grazed, HSG B 19,882 78 Meadow, non-grazed, HSG D 160,176 63 Weighted Average 150,922 94.22% Pervious Area 9,254 5.78% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.5 100 0.0250 0.16 Sheet Flow, SF- GRASS Grass: Short n= 0.150 P2= 2.32" 9.0 415 0.0120 0.77 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 19.5 515 Total Summary for Subcatchment S300: Runoff = 3.32 cfs @ 12.11 hrs, Volume= 0.216 af, Depth> 1.56" Routed to Link 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 100-YR Rainfall=5.73" Area (sf) CN Description 2,782 98 Paved parking, HSG D 67,418 58 Meadow, non-grazed, HSG B 2,087 60 Woods, Fair, HSG B 72,287 60 Weighted Average 69,505 96.15% Pervious Area 2,782 3.85% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.3 100 0.0170 0.14 Sheet Flow, SF - GRASS Grass: Short n= 0.150 P2= 2.32" 4.6 210 0.0120 0.77 Shallow Concentrated Flow, SCF - GRASS Short Grass Pasture Kv= 7.0 fps 16.9 310 Total Summary for Pond P1: B10 Inflow Area = 0.659 ac, 47.53% Impervious, Inflow Depth > 3.00" for 100-YR event Inflow = 3.66 cfs @ 11.97 hrs, Volume= 0.165 of Outflow = 3.24 cfs @ 12.02 hrs, Volume= 0.126 af, Atten= 11%, Lag= 2.9 min Discarded = 0.06 cfs @ 12.02 hrs, Volume= 0.040 of Secondary= 3.18 cfs @ 12.02 hrs, Volume= 0.086 of Routed to Link 1 : Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 2026-06-01 Postdevelopment Type // 24-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCADO 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 25 Peak Elev= 1,083.51'@ 12.02 hrs Surf.Area= 3,336 sf Storage= 2,306 cf Plug-Flow detention time=92.9 min calculated for 0.126 of(76% of inflow) Center-of-Mass det. time= 31.8 min ( 812.2 - 780.4 ) Volume Invert Avail.Storage Storage Description #1 1,080.25' 925 cf Custom Stage Data (Irregular)Listed below(Recalc) 2,313 cf Overall x 40.0% Voids #2 1,082.75' 2,743 cf Custom Stage Data (Irregular)Listed below(Recalc) 3,668 cf Total Available Storage Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 1,080.25 925 125.0 0 0 925 1,082.75 925 125.0 2,313 2,313 1,238 Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 1,082.75 925 125.0 0 0 925 1,083.00 1,740 465.0 328 328 16,888 1,084.00 3,160 480.0 2,415 2,743 18,111 Device Routing Invert Outlet Devices #1 Discarded 1,080.25' 0.750 in/hr Exfiltration over Surface area #2 Secondary 1,083.25' 10.0' long x 6.0' 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) 2.37 2.51 2.70 2.68 2.68 2.67 2.65 2.65 2.65 2.65 2.66 2.66 2.67 2.69 2.72 2.76 2.83 Discarded OutFlow Max=0.06 cfs @ 12.02 hrs HW=1,083.50' (Free Discharge) L1=Exfiltration (Exfiltration Controls 0.06 cfs) Secondary OutFlow Max=2.97 cfs @ 12.02 hrs HW=1,083.50' (Free Discharge) L2=Broad-Crested Rectangular Weir(Weir Controls 2.97 cfs @ 1.20 fps) Summary for Pond P2: Inflow Area = 0.445 ac, 24.08% Impervious, Inflow Depth > 2.21" for 100-YR event Inflow = 1.87 cfs @ 11.98 hrs, Volume= 0.082 of Outflow = 1.70 cfs @ 12.01 hrs, Volume= 0.082 af, Atten= 9%, Lag= 1.8 min Primary = 1.70 cfs @ 12.01 hrs, Volume= 0.082 of Routed to Link 1 : Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 1,081.59'@ 12.01 hrs Surf.Area= 492 sf Storage= 199 cf Plug-Flow detention time= 1.6 min calculated for 0.082 of(100% of inflow) Center-of-Mass det. time= 1.3 min ( 798.0 - 796.7 ) 2026-06-01 Postdevelopment Type/1 24-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 26 Volume Invert Avail.Storage Storage Description #1 1,080.75' 454 cf Custom Stage Data (Prismatic)-isted below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 1,080.75 1 0 0 1,081.00 130 16 16 1,082.00 745 438 454 Device Routing Invert Outlet Devices #1 Primary 1,080.75' 12.0" Round Culvert L= 70.0' CPP, end-section conforming to fill, Ke= 0.500 Inlet/ Outlet Invert= 1,080.75'/ 1,080.40' S= 0.0050 T Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=1.68 cfs @ 12.01 hrs HW=1,081.58' (Free Discharge) t--1=Culvert (Barrel Controls 1.68 cfs @ 3.27 fps) Summary for Pond P3: Inflow Area = 0.489 ac, 28.45% Impervious, Inflow Depth > 2.55" for 100-YR event Inflow = 2.34 cfs @ 11.97 hrs, Volume= 0.104 of Outflow = 2.32 cfs @ 11.99 hrs, Volume= 0.104 af, Atten= 1%, Lag= 0.8 min Primary = 2.32 cfs @ 11.99 hrs, Volume= 0.104 of Routed to Link 1 : Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 1,082.13'@ 11.99 hrs Surf.Area= 206 sf Storage= 79 cf Plug-Flow detention time=0.4 min calculated for 0.104 of(100% of inflow) Center-of-Mass det. time= 0.4 min ( 790.0 - 789.6 ) Volume Invert Avail.Storage Storage Description #1 1,081.25' 432 cf Custom Stage Data (Prismatic)-isted below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 1,081.25 1 0 0 1,082.00 150 57 57 1,083.00 600 375 432 Device Routing Invert Outlet Devices #1 Primary 1,081.25' 12.0" Round Culvert L= 67.0' CPP, end-section conforming to fill, Ke= 0.500 Inlet/ Outlet Invert= 1,081.25'/ 1,080.00' S= 0.0187'/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=2.25 cfs @ 11.99 hrs HW=1,082.10' (Free Discharge) t-1=Culvert (Inlet Controls 2.25 cfs @ 3.15 fps) 2026-06-01 Postdevelopment Type/1 24-hr 100-YR Rainfall=5.73" Prepared by Environmental Design Partnership Printed 6/1/2026 HydroCAD® 10.20-2h s/n 00476 ©2024 HydroCAD Software Solutions LLC Page 27 Summary for Link 1: Inflow Area = 10.632 ac, 9.18% Impervious, Inflow Depth > 2.22" for 100-YR event Inflow = 14.29 cfs @ 12.49 hrs, Volume= 1.966 of Primary = 14.29 cfs @ 12.49 hrs, Volume= 1.966 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Link 2: Inflow Area = 3.677 ac, 5.78% Impervious, Inflow Depth > 1.79" for 100-YR event Inflow = 7.88 cfs @ 12.13 hrs, Volume= 0.549 of Primary = 7.88 cfs @ 12.13 hrs, Volume= 0.549 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Summary for Link 3: Inflow Area = 1.659 ac, 3.85% Impervious, Inflow Depth > 1.56" for 100-YR event Inflow = 3.32 cfs @ 12.11 hrs, Volume= 0.216 of Primary = 3.32 cfs @ 12.11 hrs, Volume= 0.216 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs USDA United States A product of the National Custom Soil Resource -r Department of Cooperative Soil- Survey,Agriculture a joint effort of the United Report for N �� States Department of Agriculture and other Tompkins Federal agencies, State Natural agencies including the Resources Agricultural Experiment County, New Conservation Stations, and local Service participants York N ti. 1 I j May 29, 2026 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/nres/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nres)or your NRCS State Soil Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.)should contact USDA's TARGET Center at(202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice)or(202)720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface....................................................................................................................2 How Soil Surveys Are Made..................................................................................5 SoilMap.................................................................................................................. 8 SoilMap................................................................................................................9 Legend................................................................................................................10 MapUnit Legend................................................................................................ 11 MapUnit Descriptions.........................................................................................11 Tompkins County, New York........................................................................... 13 HmB—Honeoye gravelly silt loam, 2 to 8 percent slopes........................... 13 HmC—Honeoye gravelly silt loam, 8 to 15 percent slopes......................... 14 KaB—Kendaia silt loam, 3 to 8 percent slopes........................................... 16 LmB—Lima silt loam, 3 to 8 percent slopes................................................18 References............................................................................................................21 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil-landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil-landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. 7 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 Custom Soil Resource Report 3 Soil Map 371340 371420 371500 371580 371690 371740 371820 371900 371980 3720Fi0 42o 35'43"N - - 41 I 42o 35 43"N a . 31 4 v i � o o 4 0 _ INK i I Jq Mapm- n, I' tthisxsc -- 42o 35 27"N 420 35 27"N 371340 371420 371500 371580 371660 371740 3718M 371900 371980 372060 3 3 Fn in Map Scale:1:3,390 if printed on A landscape(11"x 8.5")sheet " Meters o NN 0 50 100 200 300 /V 0 150 300 600 900 Map projection:Web Mercator Comer coordinates:WGS84 Edge tics:UTM Zone 18N WGS84 9 Custom Soil Resource Report MAP LEGEND MAP INFORMATION Area of Interest(AOI) Spoil Area The soil surveys that comprise your AOI were mapped at Area of Interest(AOI) 1:20,000. Q Stony Spot Soils Very Stony Spot Soil Map Unit Polygons Warning:Soil Map may not be valid at this scale. Wet Spot �i Soil Map Unit Lines Enlargement of maps beyond the scale of mapping can cause Other misunderstanding of the detail of mapping and accuracy of soil 0 Soil Map Unit Points g pp g y .- Special Line Features line placement.The maps do not show the small areas of Special Point Features contrasting soils that could have been shown at a more detailed V Blowout Water Features scale. Streams and Canals Borrow Pit Clay Spot Transportation Please rely on the bar scale on each map sheet for map .+. Rails measurements. J Closed Depression ti Interstate Highways Gravel Pit Source of Map: Natural Resources Conservation Service US Routes Web Soil Survey URL: Gravelly Spot Major Roads Coordinate System: Web Mercator(EPSG:3857) O Landfill Local Roads Maps from the Web Soil Survey are based on the Web Mercator A Lava Flow Background projection,which preserves direction and shape but distorts distance and area.A projection that preserves area,such as the Marsh or swamp Aerial Photography Albers equal-area conic projection,should be used if more Mine or Quarry accurate calculations of distance or area are required. O Miscellaneous Water This product is generated from the USDA-NRCS certified data as O Perennial Water of the version date(s)listed below. V Rock Outcrop Soil Survey Area: Tompkins County, New York + Saline Spot Survey Area Data: Version 21,Sep 2,2025 Sandy Spot Soil map units are labeled(as space allows)for map scales 4W Severely Eroded Spot 1:50,000 or larger. 0 Sinkhole Date(s)aerial images were photographed: Apr 1,2020—Oct 1, 3) Slide or Slip 2020 Sodic Spot 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. 10 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI HmB Honeoye gravelly silt loam,2 to 29.2 69.2% 8 percent slopes HmC Honeoye gravelly silt loam,8 to 0.5 1.1% 15 percent slopes KaB Kendaia silt loam,3 to 8 8.2 19.5% percent slopes LmB Lima silt loam,3 to 8 percent 4.3 10.2% slopes Totals for Area of Interest 42.2 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. 11 Custom Soil Resource Report The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12 Custom Soil Resource Report Tompkins County, New York HmB—Honeoye gravelly silt loam, 2 to 8 percent slopes Map Unit Setting National map unit symbol: 2w3p1 Landscape: Till plains Elevation: 260 to 1,780 feet Mean annual precipitation: 31 to 57 inches Mean annual air temperature: 41 to 50 degrees F Frost-free period: 100 to 190 days Farmland classification: All areas are prime farmland Map Unit Composition Honeoye and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Honeoye Setting Landscape: Till plains Landform: Ridges, Till plains, Drumlins Landform position (two-dimensional): Summit, shoulder, backslope Landform position (three-dimensional): Crest, side slope Down-slope shape: Convex Across-slope shape: Convex Parent material: Calcareous loamy lodgment till derived from limestone, sandstone, and shale Typical profile Ap - 0 to 8 inches: gravelly silt loam E- 8 to 10 inches: silt loam Bt/E- 10 to 14 inches: loam Bt1 - 14 to 23 inches: loam Bt2-23 to 29 inches: gravelly loam C- 29 to 79 inches: gravelly loam Properties and qualities Slope: 2 to 8 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water(Ksat): Very low to moderately high (0.00 to 1.42 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 40 percent Available water supply, 0 to 60 inches: Moderate (about 7.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: B 13 Custom Soil Resource Report Ecological site: F101XY012NY-Till Upland Hydric soil rating: No Minor Components Lima Percent of map unit: 5 percent Landscape: Till plains Landform: Drumlins, Till plains, Ridges Landform position (two-dimensional): Summit, shoulder Landform position (three-dimensional): Crest Down-slope shape: Linear Across-slope shape: Convex Hydric soil rating: No Lansing Percent of map unit: 4 percent Landscape: Till plains Landform: Till plains, Hills, Drumlins Landform position (two-dimensional): Summit, shoulder, backslope Landform position (three-dimensional): Side slope, crest Down-slope shape: Convex Across-slope shape: Convex Hydric soil rating: No Appleton Percent of map unit: 4 percent Landscape: Till plains Landform: Till plains, Ridges, Drumlins Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Linear Hydric soil rating: No Wassaic Percent of map unit: 2 percent Landscape: Till plains Landform: Till plains, Ridges, Benches Landform position (two-dimensional): Summit Landform position (three-dimensional): Crest Down-slope shape: Convex Across-slope shape: Convex Hydric soil rating: No HmC—Honeoye gravelly silt loam, 8 to 15 percent slopes Map Unit Setting National map unit symbol: 2w3p3 Landscape: Till plains Elevation: 380 to 1,840 feet 14 Custom Soil Resource Report Mean annual precipitation: 31 to 57 inches Mean annual air temperature: 41 to 50 degrees F Frost-free period: 100 to 190 days Farmland classification: Farmland of statewide importance Map Unit Composition Honeoye and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Honeoye Setting Landscape: Till plains Landform: Ridges, Till plains, Drumlins Landform position (two-dimensional): Shoulder, backslope, summit Landform position (three-dimensional): Side slope, crest Down-slope shape: Convex Across-slope shape: Convex Parent material: Calcareous loamy lodgment till derived from limestone, sandstone, and shale Typical profile Ap - 0 to 8 inches: gravelly silt loam E- 8 to 10 inches: silt loam Bt/E- 10 to 14 inches: loam Bt1 - 14 to 23 inches: loam Bt2-23 to 29 inches: gravelly loam C- 29 to 79 inches: gravelly loam Properties and qualities Slope: 8 to 15 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water(Ksat): Very low to moderately high (0.00 to 1.42 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 40 percent Available water supply, 0 to 60 inches: Moderate (about 7.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: B Ecological site: F101XY012NY-Till Upland Hydric soil rating: No Minor Components Lima Percent of map unit: 5 percent Landscape: Till plains Landform: Drumlins, Till plains, Ridges Landform position (two-dimensional): Summit, shoulder 15 Custom Soil Resource Report Landform position (three-dimensional): Crest Down-slope shape: Linear Across-slope shape: Convex Hydric soil rating: No Appleton Percent of map unit: 4 percent Landscape: Till plains Landform: Till plains, Ridges, Drumlins Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Linear Hydric soil rating: No Lansing Percent of map unit: 4 percent Landscape: Till plains Landform: Till plains, Hills, Drumlins Landform position (two-dimensional): Summit, shoulder, backslope Landform position (three-dimensional): Side slope, crest Down-slope shape: Convex Across-slope shape: Convex Hydric soil rating: No Wassaic Percent of map unit: 2 percent Landscape: Till plains Landform: Till plains, Ridges, Benches Landform position (two-dimensional): Summit Landform position (three-dimensional): Crest Down-slope shape: Convex Across-slope shape: Convex Hydric soil rating: No KaB—Kendaia silt loam, 3 to 8 percent slopes Map Unit Setting National map unit symbol: 2w5j4 Landscape: Till plains Elevation: 430 to 1,610 feet Mean annual precipitation: 31 to 57 inches Mean annual air temperature: 41 to 50 degrees F Frost-free period: 100 to 190 days Farmland classification: Prime farmland if drained Map Unit Composition Kendaia and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. 16 Custom Soil Resource Report Description of Kendaia Setting Landscape: Till plains Landform: Till plains, Ridges, Drumlins Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Linear Parent material: Calcareous loamy lodgment till derived from limestone, sandstone, and shale Typical profile Ap - 0 to 8 inches: silt loam Bw- 8 to 15 inches: silt loam Bg- 15 to 20 inches: gravelly silt loam BCg- 20 to 24 inches: gravelly loam C- 24 to 79 inches: gravelly loam Properties and qualities Slope: 3 to 8 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water(Ksat): Very low to moderately high (0.00 to 1.42 in/hr) Depth to water table: About 6 to 18 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 40 percent Available water supply, 0 to 60 inches: Moderate (about 7.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w Hydrologic Soil Group: B/D Ecological site: F101XY013NY- Moist Till Hydric soil rating: No Minor Components Lima Percent of map unit: 7 percent Landscape: Till plains Landform: Till plains, Drumlins Landform position (two-dimensional): Summit Landform position (three-dimensional): Crest Down-slope shape: Convex Across-slope shape: Convex Hydric soil rating: No Lyons Percent of map unit: 4 percent Landscape: Till plains Landform: Drainageways, Depressions Landform position (two-dimensional): Toeslope 17 Custom Soil Resource Report Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Concave Hydric soil rating: Yes Churchville Percent of map unit: 2 percent Landscape: Till plains Landform: Till plains, Proglacial lake plains Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope, rise, talf Down-slope shape: Concave Across-slope shape: Linear Hydric soil rating: No Ovid Percent of map unit: 2 percent Landscape: Till plains Landform: Till plains, Reworked lake plains Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Linear Hydric soil rating: No LmB—Lima silt loam, 3 to 8 percent slopes Map Unit Setting National map unit symbol: 2w3kk Landscape: Till plains Elevation: 380 to 1,680 feet Mean annual precipitation: 31 to 57 inches Mean annual air temperature: 41 to 50 degrees F Frost-free period: 100 to 190 days Farmland classification: All areas are prime farmland Map Unit Composition Lima and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Lima Setting Landscape: Till plains Landform: Till plains, Ridges, Drumlins Landform position (two-dimensional): Summit, shoulder Landform position (three-dimensional): Crest Down-slope shape: Linear Across-slope shape: Convex 18 Custom Soil Resource Report Parent material: Calcareous loamy lodgment till derived from limestone, sandstone, and shale Typical profile Ap - 0 to 9 inches: silt loam Bt/E- 9 to 12 inches: loam Bt1 - 12 to 16 inches: loam Bt2- 16 to 25 inches: gravelly loam C- 25 to 79 inches: gravelly loam Properties and qualities Slope: 3 to 8 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Runoff class: Low Capacity of the most limiting layer to transmit water(Ksat): Very low to moderately high (0.00 to 1.42 in/hr) Depth to water table: About 18 to 24 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 40 percent Available water supply, 0 to 60 inches: Moderate (about 7.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: B/D Ecological site: F101XY013NY- Moist Till Hydric soil rating: No Minor Components Honeoye Percent of map unit: 6 percent Landscape: Till plains Landform: Ridges, Till plains, Drumlins Landform position (two-dimensional): Summit, shoulder, backslope Landform position (three-dimensional): Crest, side slope Down-slope shape: Linear, convex Across-slope shape: Convex Hydric soil rating: No Appleton Percent of map unit: 3 percent Landscape: Till plains Landform: Ridges, Drumlins, Till plains Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Linear Hydric soil rating: No Kendaia Percent of map unit: 3 percent Landscape: Till plains Landform: Ridges, Till plains, Drumlins Landform position (two-dimensional): Footslope 19 Custom Soil Resource Report Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Linear Hydric soil rating: No Cazenovia Percent of map unit: 2 percent Landscape: Till plains Landform: Reworked lake plains Landform position (two-dimensional): Summit Landform position (three-dimensional): Crest Down-slope shape: Concave Across-slope shape: Convex Hydric soil rating: No Lyons Percent of map unit: 1 percent Landscape: Till plains Landform: Drainageways, Depressions Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Concave Hydric soil rating: Yes 20 References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/ nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nresl42p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 21 Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://www.nres.usda.gov/wps/portal/ nres/detail/soils/scientists/?cid=nres142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid=n res 142 p 2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/lnternet/FSE—DOCUMENTS/nrcsl42p2_052290.pdf 22 , United States Department of the Interior -4/ FISH AND WILDLIFE SERVICE New York Ecological Services Field Office 3817 Luker Road Cortland,NY 13045-9385 Phone: (607) 753-9334 Fax: (607) 753-9699 Email Address: fw5es neyfo@fws.gov In Reply Refer To: 03/11/2026 14:53:48 UTC Project code: 2026-0061029 Project Name: Jerry Smith BESS Federal Nexus: no Federal Action Agency (if applicable): Subject: Record of project representative's no effect determination for 'Jerry Smith BESS' Dear Bailey Godson: This letter records your determination using the Information for Planning and Consultation (IPaC) system provided to the U.S. Fish and Wildlife Service (Service) on March 11, 2026, for 'Jerry Smith BESS' (here forward, Project). This project has been assigned Project Code 2026-0061029 and all future correspondence should clearly reference this number. Please carefully review this letter. Ensuring Accurate Determinations When Using IPaC The Service developed the IPaC system and associated species' determination keys in accordance with the Endangered Species Act of 1973 (ESA; 87 Stat. 884, as amended; 16 U.S.C. 1531 et seq.) and based on a standing analysis.All information submitted by the Project proponent into IPaC must accurately represent the full scope and details of the Project. Failure to accurately represent or implement the Project as detailed in IPaC or the Northern Long-eared Bat and Tricolored Bat Range-wide Determination Key (Dkey), invalidates this letter.Answers to certain questions in the DKey commit the project proponent to implementation of conservation measures that must be followed for the ESA determination to remain valid. Determination for the Northern Long-Eared Bat and/or Tricolored Bat Based upon your IPaC submission and a standing analysis, your project has reached the following effect determinations: Species Listing Status Determination Northern Long-eared Bat (Myotis septentrionalis) Endangered No effect Project code: 2026-0061029 IPaC Record Locator: 873-177993024 03/11/2026 14:53:48 UTC To make a no effect determination, the full scope of the proposed project implementation (action) should not have any effects (either positive or negative), to a federally listed species or designated critical habitat. Effects of the action are all consequences to listed species or critical habitat that are caused by the proposed action, including the consequences of other activities that are caused by the proposed action.A consequence is caused by the proposed action if it would not occur but for the proposed action and it is reasonably certain to occur. Effects of the action may occur later in time and may include consequences occurring outside the immediate area involved in the action. (See §402.17). Under Section 7 of the ESA, if a federal action agency makes a no effect determination, no consultation with the Service is required(ESA§7). If a proposed Federal action may affect a listed species or designated critical habitat, formal consultation is required except when the Service concurs, in writing, that a proposed action "is not likely to adversely affect" listed species or designated critical habitat [50 CFR §402.02, 50 CFR§402.13]. Other Species and Critical Habitat that May be Present in the Action Area The IPaC-assisted determination key for the northern long-eared bat and tricolored bat does not apply to the following ESA-protected species and/or critical habitat that also may occur in your Action area: ■ Monarch Butterfly Danaus plexippus Proposed Threatened You may coordinate with our Office to determine whether the Action may affect the animal species listed above and, if so, how they may be affected. Next Steps If there are no updates on listed species, no further consultation/coordination for this project is required with respect to the species covered by this key. However, the Service recommends that project proponents re-evaluate the Project in IPaC if: 1)the scope, timing, duration, or location of the Project changes (includes any project changes or amendments); 2) new information reveals the Project may impact(positively or negatively) federally listed species or designated critical habitat; or 3) a new species is listed, or critical habitat designated. If any of the above conditions occurs, additional coordination with the Service should take place to ensure compliance with the Act. If you have any questions regarding this letter or need further assistance, please contact the New York Ecological Services Field Office and reference Project Code 2026-0061029 associated with this Project. DKey Version Publish Date: 03/06/2026 2 of 10 Project code: 2026-0061029 IPaC Record Locator: 873-177993024 03/11/2026 14:53:48 UTC Action Description You provided to IPaC the following name and description for the subject Action. 1. Name Jerry Smith BESS 2. Description The following description was provided for the project 'Jerry Smith BESS': The client is proposing the construction of a Battery Energy Storage System (BESS) located off of Jerry Smith Road in the Town of Lansing, Tompkins County, NY. The project site will to limited to the northern half of the 14± acre property where active agriculture practices are currently occurring. The approximate location of the project can be viewed in Google Maps: https:// www.google.com/maps/@42.58896325,-76.56704481962775,14z DKey Version Publish Date: 03/06/2026 3 of 10 Project code: 2026-0061029 IPaC Record Locator: 873-177993024 03/11/2026 14:53:48 UTC DETERMINATION KEY RESULT Based on the information you provided, you have determined that the Proposed Action will have no effect on the species covered by this determination key. Therefore, no consultation with the U.S. Fish and Wildlife Service pursuant to Section 7(a)(2) of the Endangered Species Act of 1973 (87 Stat. 884, as amended 16 U.S.C. 1531 et seq.)is required for those species. QUALIFICATION INTERVIEW 1. Does the proposed project include, or is it reasonably certain to cause, intentional take of listed bats or any other listed species? Note:Intentional take is defined as take that is the intended result of a project.Intentional take could refer to research,direct species management,surveys,and/or studies that include intentional handling/encountering, harassment,collection,or capturing of any individual of a federally listed threatened,endangered or proposed species? No 2. Is the action area wholly within Zone 2 of the year-round active area for northern long- eared bat and/or tricolored bat? Automatically answered No 3. Does the action area intersect Zone 1 of the year-round active area for northern long-eared bat and/or tricolored bat? Automatically answered No 4. Does any component of the action involve leasing, construction or operation of wind turbines?Answer 'yes' if the activities considered are conducted with the intention of gathering survey information to inform the leasing, construction, or operation of wind turbines. No 5. Is the proposed action authorized, permitted, licensed, funded, or being carried out by a Federal agency in whole or in part? Note for projects in Pennsylvania:Projects requiring authorization under Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act would be considered as having a federal nexus.Since the U.S. Army Corps of Engineers(Corps)has issued the Pennsylvania State Programmatic General Permit(PASPGP), which may be verified by the PA Department of Environmental Protection or certain Conservation Districts,the need to receive a Corps authorization to perform the work under the PASPGP serves as a federal nexus.As such, if proposing to use the PASPGP,you would answer`yes'to this question. No DKey Version Publish Date: 03/06/2026 4 of 10 Project code: 2026-0061029 IPaC Record Locator: 873-177993024 03/11/2026 14:53:48 UTC 6. [Semantic] Is the action area located within 0.5 miles of a known bat hibernaculum or winter roost? Note: The map queried for this question contains proprietary information and cannot be displayed. If you need additional information, please contact your state wildlife agency. Automatically answered No 7. Does the action area contain any winter roosts or caves (or associated sinkholes, fissures, or other karst features), mines, rocky outcroppings, or tunnels that could provide habitat for hibernating bats? No 8. Will the action cause effects to a bridge? Note: Covered bridges should be considered as bridges in this question. No 9. Will the action result in effects to a culvert or tunnel at any time of year? No 10. Are trees present within 1000 feet of the action area? Note:If there are trees within the action area that are of a sufficient size to be potential roosts for bats answer "Yes".If unsure,additional information defining suitable summer habitat for the northern long-eared bat and tricolored bat can be found in Appendix A of the USFWS'Range-wide Indiana Bat and Northern long-eared bat Survey Guidelines at:https://www.fws.gov/media/range-wide-indiana-bat-and-northern-long-eared-bat-survey- guidelines. Yes 11. Does the action include the intentional exclusion of bats from a building or building-like structure? Note:Exclusion is conducted to deny bats'entry or reentry into a building.To be effective and to avoid harming bats,it should be done according to established standards.If your action includes bat exclusion and you are unsure whether northern long-eared bats or tricolored bats are present,answer"Yes."Answer"No"if there are no signs of bat use in the building/structure.If unsure,contact your local Ecological Services Field Office to help assess whether northern long-eared bats or tricolored bats may be present.Contact a Nuisance Wildlife Control Operator(NWCO)for help in how to exclude bats from a structure safely without causing harm to the bats(to find a NWCO certified in bat standards,search the Internet using the search term"National Wildlife Control Operators Association bats").Also see the White-Nose Syndrome Response Team's guide for bat control in structures. No 12. Does the action involve removal, modification, or maintenance of a human-made building- like structure (barn, house, or other building) known or suspected to contain roosting bats? No DKey Version Publish Date: 03/06/2026 5 of 10 Project code: 2026-0061029 IPaC Record Locator: 873-177993024 03/11/2026 14:53:48 UTC 13. Will the action cause construction of one or more new roads open to the public? For federal actions, answer `yes'when the construction or operation of these facilities is either(1) part of the federal action or (2)would not occur but for an action taken by a federal agency(federal permit, funding, etc.). No 14. Will the action include or cause any construction or other activity that is reasonably certain to increase average night-time traffic permanently or temporarily on one or more existing roads?Note:For federal actions,answer`yes'when the construction or operation of these facilities is either(1) part of the federal action or(2)would not occur but for an action taken by a federal agency(federal permit, funding,etc.). . No 15. Will the action include or cause any construction or other activity that is reasonably certain to increase the number of travel lanes on an existing thoroughfare? For federal actions, answer `yes'when the construction or operation of these facilities is either (1) part of the federal action or (2)would not occur but for an action taken by a federal agency(federal permit, funding, etc.). No 16. Will the proposed Action involve the creation of a new water-borne contaminant source (e.g., leachate pond, pits containing chemicals that are not NSF/ANSI 60 compliant)? Note:For information regarding NSF/ANSI 60 please visit https://www.nsf.orW nowledge-library/nsf-ansi- standard-60-drinking-water-treatment-chemicals-health-effects No 17. Will the proposed action involve the creation of a new point source discharge from a facility other than a water treatment plant or storm water system? No 18. Will the proposed action involve blasting or drilling? No 19. Will the action involve military training (e.g., smoke operations, obscurant operations, exploding munitions, artillery fire, range use, helicopter or fixed wing aircraft use at night)? No 20. Will the proposed action involve the use of herbicides or pesticides (e.g., fungicides, insecticides, or rodenticides)? No DKey Version Publish Date: 03/06/2026 6 of 10 Project code: 2026-0061029 IPaC Record Locator: 873-177993024 03/11/2026 14:53:48 UTC 21. Will the action include or cause activities that are reasonably certain to cause chronic or intense nighttime noise (above current levels of ambient noise in the area) in suitable summer habitat for the northern long-eared bat or tricolored bat during the active season? Chronic noise is noise that is continuous or occurs repeatedly again and again for a long time. Sources of chronic or intense noise that could cause adverse effects to bats may include, but are not limited to: road traffic; trains; aircraft; industrial activities; gas compressor stations; loud music; crowds; oil and gas extraction; construction; and mining. Note:Additional information defining suitable summer habitat for the northern long-eared bat and tricolored bat can be found in Appendix A of the USFWS'Range-wide Indiana Bat and Northern long-eared bat Survey Guidelines at:https://www.fws.gov/media/range-wide-indiana-bat-and-northern-long-eared-bat-survey_ guidelines. No 22. Does the action include, or is it reasonably certain to cause, the use of permanent or temporary artificial lighting within 1000 feet of suitable northern long-eared bat or tricolored bat roosting habitat? Note:Additional information defining suitable summer habitat for the northern long-eared bat and tricolored bat can be found in Appendix A of the USFWS'Range-wide Indiana Bat and Northern long-eared bat Survey Guidelines at:https://www.fws.gov/media/range-wide-indiana-bat-and-northern-long-eared-bat-survey_ guidelines. No 23. Will the action include tree cutting or other means of knocking down or bringing down trees, tree topping, or tree trimming? No 24. Will the proposed action result in the use of prescribed fire? Note: If the prescribed fire action includes other activities than application of fire(e.g.,tree cutting,fire line preparation)please consider impacts from those activities within the previous representative questions in the key. This set of questions only considers impacts from flame and smoke. No 25. Does the action area intersect the northern long-eared bat species list area? Automatically answered Yes 26. [Semantic] Is the action area located within 0.5 miles of radius of an entrance/opening to any known NLEB hibernacula or winter roost? Note:The map queried for this question contains proprietary information and cannot be displayed.If you need additional information,please contact your State wildlife agency. Automatically answered No DKey Version Publish Date: 03/06/2026 7 of 10 Project code: 2026-0061029 IPaC Record Locator: 873-177993024 03/11/2026 14:53:48 UTC 27. [Semantic] Is the action area located within 0.25 miles of a culvert that is known to be occupied by northern long-eared or tricolored bats?Note:The map queried for this question contains proprietary information and cannot be displayed.If you need additional information,please contact your State wildlife agency. Automatically answered No 28. [Semantic] Is the action area located within 150 feet of a documented northern long-eared bat roost site? Note: The map queried for this question contains proprietary information and cannot be displayed. If you need additional information, please contact your State wildlife agency.Have you contacted the appropriate agency to determine if your action is within 150 feet of any documented northern long-eared bat roosts? Note:A document with links to Natural Heritage Inventory databases and other state- specific sources of information on the locations of northern long-eared bat roosts is available here. Location information for northern long-eared bat roosts is generally kept in state natural heritage inventory databases—the availability of this data varies by state. Many states provide online access to their data, either directly by providing maps or by providing the opportunity to make a data request. In some cases, to protect those resources, access to the information may be limited. Automatically answered No 29. Is suitable summer habitat for the northern long-eared bat present within 1000 feet of project activities? If unsure, answer "Yes." Note:Additional information defining suitable summer habitat for the northern long-eared bat and tricolored bat can be found in Appendix A of the USFWS'Range-wide Indiana Bat and Northern long-eared bat Survey Guidelines at:b=s://www.fws.gov/media/range-wide-indiana-bat-and-northern-long-eared-bat-survey_ guidelines. Yes 30. Has a presence/probable absence summer bat survey targeting the northern long-eared bat following the Service's Range-wide Indiana Bat and Northern Long-Eared Bat Survey Guidelines been conducted within the project area? No 31. Do you have any documents that you want to include with this submission? No DKey Version Publish Date: 03/06/2026 8 of 10 Project code: 2026-0061029 IPaC Record Locator: 873-177993024 03/11/2026 14:53:48 UTC PROJECT QUESTIONNAIRE DKey Version Publish Date: 03/06/2026 9 of 10 Project code: 2026-0061029 IPaC Record Locator: 873-177993024 03/11/2026 14:53:48 UTC IPAC USER CONTACT INFORMATION Agency: Environmental Design Partnership, LLP (EDP) Name: Bailey Godson Address: 900 Route 146 City: Clifton Park State: NY Zip: 12065 Email bgodson@edpllp.com Phone: 8382514798 DKey Version Publish Date: 03/06/2026 10 of 10 CFw� MID United States Department of the Interior FISH AND WILDLIFE SERVICE New York Ecological Services Field Office 3817 Luker Road Cortland,NY 13045-9385 Phone: (607)753-9334 Fax: (607)753-9699 Email Address:fw5es npfo@fws.gov In Reply Refer To: 05/06/2026 18:23:06 UTC Project Code: 2026-0086469 Project Name: Jerry Smith BESS Subject: List of threatened and endangered species that may occur in your proposed project location or may be affected by your proposed project To Whom It May Concern: The enclosed species list identifies threatened, endangered, proposed and candidate species, as well as proposed and final designated critical habitat, that may occur within the boundary of your proposed project and/or may be affected by your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the Endangered Species Act(Act) of 1973, as amended (16 U.S.C. 1531 et seq.). New information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could change this list. Please feel free to contact us if you need more current information or assistance regarding the potential impacts to federally proposed, listed, and candidate species and federally designated and proposed critical habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of this species list should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the IPaC website at regular intervals during project planning and implementation for updates to species lists and information.An updated list may be requested through the IPaC system by completing the same process used to receive the enclosed list. The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to utilize their authorities to carry out programs for the conservation of threatened and endangered species and to determine whether projects may affect threatened and endangered species and/or designated critical habitat. A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) Project code: 2026-0086469 05/06/2026 18:23:06 UTC (c)). For projects other than major construction activities, the Service suggests that a biological evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat. Recommended contents of a Biological Assessment are described at 50 CFR 402.12. If a Federal agency determines, based on the Biological Assessment or biological evaluation, that listed species and/or designated critical habitat may be affected by the proposed project, the agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service recommends that candidate species, proposed species and proposed critical habitat be addressed within the consultation. More information on the regulations and procedures for section 7 consultation, including the role of permit or license applicants, can be found in the "Endangered Species Consultation Handbook" at: https://www.fws.gov/sites/default/files/documents/endangered-species-consultation- handbook.pdf Migratory Birds: In addition to responsibilities to protect threatened and endangered species under the Endangered Species Act(ESA), there are additional responsibilities under the Migratory Bird Treaty Act(MBTA) and the Bald and Golden Eagle Protection Act (BGEPA) to protect native birds from project-related impacts.Any activity resulting in take of migratory birds, including eagles, is prohibited unless otherwise permitted by the U.S. Fish and Wildlife Service (50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a)). For more information regarding these Acts see https://www.fws.gov/program/migratory-bird-permit/what-we-do. It is the responsibility of the project proponent to comply with these Acts by identifying potential impacts to migratory birds and eagles within applicable NEPA documents (when there is a federal nexus) or a Bird/Eagle Conservation Plan (when there is no federal nexus). Proponents should implement conservation measures to avoid or minimize the production of project-related stressors or minimize the exposure of birds and their resources to the project-related stressors. For more information on avian stressors and recommended conservation measures see https:// www.fws.gov/library/collections/threats-birds. In addition to MBTA and BGEPA, Executive Order 13186: Responsibilities of Federal Agencies to Protect Migratory Birds, obligates all Federal agencies that engage in or authorize activities that might affect migratory birds, to minimize those effects and encourage conservation measures that will improve bird populations. Executive Order 13186 provides for the protection of both migratory birds and migratory bird habitat. For information regarding the implementation of Executive Order 13186, please visit https://www.fws.gov/partner/council-conservation- migratory-birds. We appreciate your concern for threatened and endangered species. The Service encourages Federal agencies to include conservation of threatened and endangered species into their project planning to further the purposes of the Act. Please include the Consultation Code in the header of this letter with any request for consultation or correspondence about your project that you submit to our office. 2 of 7 Project code: 2026-0086469 05/06/2026 18:23:06 UTC Attachment(s): ■ Official Species List OFFICIAL SPECIES LIST This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the requirement for Federal agencies to "request of the Secretary of the Interior information whether any species which is listed or proposed to be listed may be present in the area of a proposed action". This species list is provided by: New York Ecological Services Field Office 3817 Luker Road Cortland, NY 13045-9385 (607) 753-9334 3 of 7 Project code: 2026-0086469 05/06/2026 18:23:06 UTC PROJECT SUMMARY Project Code: 2026-0086469 Project Name: Jerry Smith BESS Project Type: Battery Energy Storage Systems Project Description: The client is proposing the construction of a 5 Megawatt Battery Energy Storage System (BESS) south of Jerry Smith Road in the Town of Lansing, Tompkins County, NY. The project area consists of vacant woodlands located on a previously developed parcel of land (solar). The surrounding land use consists of agricultural land, industrial development, residential development, and vacant woodlands. Project Location: The approximate location of the project can be viewed in Google Maps: https: www.google.com/maps/@42.5938683,-76.56366245682952,14z Counties: Tompkins County, New York 4of7 Project code: 2026-0086469 05/06/2026 18:23:06 UTC ENDANGERED SPECIES ACT SPECIES There is a total of 2 threatened, endangered, or candidate species on this species list. Species on this list should be considered in an effects analysis for your project and could include species that exist in another geographic area. For example, certain fish may appear on the species list because a project could affect downstream species. IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA Fisheriesi, as USFWS does not have the authority to speak on behalf of NOAA and the Department of Commerce. See the "Critical habitats" section below for those critical habitats that lie wholly or partially within your project area under this office's jurisdiction. Please contact the designated FWS office if you have questions. 1. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce. 5 of 7 Project code: 2026-0086469 05/06/2026 18:23:06 UTC MAMMALS NAME STATUS Northern Long-eared Bat Myotis septentrionalis Endangered No critical habitat has been designated for this species. Species profile:https:Hecos.fws.gov/ecp/species/9045 INSECTS NAME STATUS Monarch Butterfly Danaus plexippus Proposed There is proposed critical habitat for this species.Your location does not overlap the critical Threatened habitat. Species profile:https://ecos.fws.gov/ecp/species/9743 CRITICAL HABITATS THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S JURISDICTION. YOU ARE STILL REQUIRED TO DETERMINE IF YOUR PROJECT(S)MAY HAVE EFFECTS ON ALL ABOVE LISTED SPECIES. 6 of 7 Project code: 2026-0086469 05/06/2026 18:23:06 UTC IPAC USER CONTACT INFORMATION Agency: Environmental Design Partnership, LLP (EDP) Name: Bailey Godson Address: 900 Route 146 City: Clifton Park State: NY Zip: 12065 Email bgodson@edpllp.com Phone: 8382514798 7of7 SECTION 7 Completed Inspection Reports