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Groton II LLC - SWPPP - 09.05.24 1-1
NY GROTON II (SOUTH MAIN STREET), LLC SOUTH MAIN STREET SOLAR PROJECT GROTON, TOMPKINS COUNTY, NY 13073 TAX MAP ID: SECTION 31, BLOCK 1, LOT 12.1 SEPTEMBER 2024 STORMWATER POLLUTION PREVENTION PLAN (SWPPP) PREPARED FOR: NY Groton II (South Main Street), LLC P.O. Box 384 Callicoon, New York 12783 PREPARED BY: P.W. Grosser Consulting Engineer & Hydrogeologist, PC 630 Johnson Ave., Suite 7 Bohemia, NY 11716 Phone: 631-589-6353 Michael Scanlon P.E., Project Manager mscanlon@pwgrosser.com PWGC Project Number: DSR2314 STORMWATER POLLUTION PREVENTION PLAN PAGE i P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page i SWPPP CERTIFICATION I hereby certify that the Stormwater Pollution Prevention Plan (SWPPP) for this project has been prepared in accordance with the terms and conditions of the GP -0-20-001. Furthermore, I understand that certifying false, incorrect or inaccurate information is a violation of this permit and the laws of the State of New York and could subject me to criminal, civil, and/or administrative proceedings. ________________________________________Date: 12/5/2023__ Michael Scanlon, P.E. Revised 5/28/2024 Project Manager Revised 9/05/24 P.W. Grosser Consulting Engineer & Hydrogeologist, PC 630 Johnson Ave., Suite 7 Bohemia, NY 11716 Work: (631) 589-6353 Fax: (631) 589-8705 mscanlon@pwgrosser.com STORMWATER POLLUTION PREVENTION PLAN PAGE ii P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page ii STORMWATER POLLUTION PREVENTION PLAN NY GROTON II (SOUTH MAIN STREET), LLC– COMMUNITY SOLAR PROJECT SOUTH MAIN STREET, GROTON, NEW YORK, 13073 TABLE OF CONTENTS PAGE SWPPP CERTIFICATION ............................................................................................................... I 1.0 INTRODUCTION .................................................................................................................1 1.1. Sizing Criteria .............................................................................................................. 5 1.2. Purpose ......................................................................................................................... 6 1.3. Project Description...................................................................................................... 6 1.4. Site Description ........................................................................................................... 7 1.5. Adjacent Properties ..................................................................................................... 7 1.6. Soils ............................................................................................................................... 7 1.7. Groundwater ................................................................................................................ 8 1.8. Precipitation Data ....................................................................................................... 8 1.9. Project Permitting and Compliance .......................................................................... 8 1.9.1. Municipal Separate Stormwater Sewer System Permit ................................................8 1.9.2. Office of Parks, Recreation and Historic Preservation Review .................................... 9 2.0 CONSTRUCTION SEQUENCE AND SCHEDULING ........................................................ 10 3.0 POST-CONSTRUCTION STORMWATER MANAGEMENT ............................................ 11 3.1. Water Quality Volume Calculations .......................................................................... 11 3.2. Water Quantity Volume Calculations ...................................................................... 12 3.2.1. Pre-Development Conditions Analysis .......................................................................... 12 3.2.2. Post-Development Conditions Analysis ........................................................................ 13 3.3. Summary of Post Stormwater Controls .................................................................. 14 3.4. Post-Construction Maintenance ............................................................................. 15 4.0 EROSION AND SEDIMENT CONTROL ........................................................................... 16 4.1. Identification and Control of Potential Stormwater Pollutants .......................... 16 4.1.1. Significant Material Inventory ........................................................................................ 16 4.1.2. Potential Sources for Stormwater Pollution ................................................................. 16 4.1.3. Good Housekeeping Practices ......................................................................................... 17 4.2. Temporary Erosion and Sediment Controls ........................................................... 18 4.2.1. Site Planning and Prevention Measures........................................................................ 18 4.2.2. Stabilized Construction Entrance ............................................................................... 18 4.2.3. Perimeter Sediment Controls .......................................................................................... 19 4.2.4. Drop Inlet Protection .................................................................................................... 19 STORMWATER POLLUTION PREVENTION PLAN PAGE iii P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page iii 4.2.5. Dust Control ....................................................................................................................... 19 4.2.6. Temporary Seeding ......................................................................................................... 20 4.2.7. Topsoiling ......................................................................................................................... 20 4.2.8. Mulching ....................................................................................................................... 20 4.2.9. Surface Roughening .................................................................................................... 20 4.3. Permanent Erosion and Sediment Controls ........................................................... 21 4.3.1. Permanent Seeding........................................................................................................... 21 4.3.2. Water Bars .......................................................................................................................... 21 4.4. Maintenance of Erosion and Sediment Controls ................................................... 21 4.5. Pollution Prevention ................................................................................................. 22 4.5.1. Spill Prevention Plan ....................................................................................................... 22 4.5.2. Spill Response Plan .......................................................................................................... 22 4.6. Final Stabilization and Cleanup ............................................................................... 24 5.0 CERTIFICATIONS ............................................................................................................ 25 5.1. Preparers Certifications ........................................................................................... 25 5.2. Contractors & Subcontractors Compliance Certifications ................................... 26 STORMWATER POLLUTION PREVENTION PLAN PAGE iv P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page iv TABLES Table 1 – Existing Soils On-site 8 Table 2 – Site Precipitation Data 8 Table 3 – Water Quality Volume and Runoff Reduction Requirements 11 Table 4 – Runoff Reduction Storage Provided 12 Table 5 – Pre-Construction Stormwater Design Points 12 Table 8 – Post-Developed Drainage Conditions Summary 14 Table 9 – Pre-Development and Post-Development Drainage Conditions Summary 15 Table 10 – Potential Site Stormwater Pollutants 16 Table 11 – Locations of Potential Sources of Stormwater Pollution 17 APPENDICES Appendix A New York State Department of Environmental Conservation SPDES General Permit for Stormwater Discharges from Construction Activity (Permit No. GP-0-20-001) Appendix B Notice of Intent Appendix C Construction Duration Inspection Checklist Appendix D Existing and Proposed Site Plans (Construction Drawings) Appendix E United States Department of Agriculture’s Web Soil Survey Appendix F Preliminary Geotechnical Report, prepared by P.W. Grosser Consulting, Inc. Appendix G NOAA Atlas 14, Volume 10, Version 3 Point Precipitation Frequency Estimates Online Tool Appendix H New York State Office of Parks, Recreation and Historic Preservation No Impact Letter –10-26-2022 Appendix I WQv, RRv and Sub Catchment Calculations Appendix J Drainage Landscape Operation, Maintenance and Management Inspection Checklist STORMWATER POLLUTION PREVENTION PLAN PAGE 1 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 1 1.0 INTRODUCTION This SWPPP fulfills the requirements of the New York State Department of Environmental Conservation (NYSDEC) State Pollutant Discharge Elimination System (SPDES) General Permit for Storm Water Discharges from Construction Activity (GP-0-20-001) (Appendix A). The SWPPP objectives for the site are to: • Minimize the potential for erosion and conveyance of soil/sediment via surface runoff to downgradient on-site areas outside the limits of work, and downgradient off-site areas. • Minimize the potential for erosion and sediment migration within the work areas. • Minimize the potential for erosion and migration of soil/sediment via surface runoff such that water quality in downgradient water bodies is not significantly affected relative to pre-construction conditions. • Minimize the potential for mechanical tracking of soils/sediments onto off -site areas. • Identify potential stormwater pollutants and their sources; eliminate, control, or otherwise manage each potential pollutant or its source using appropriate Best Management Practices (BMPs). This SWPPP has been prepared in accordance with the latest requirements of the New York State Standards and Specifications for Erosion and Sediment Control and New York State Stormwater Management Design Manual (Design Manual). Additionally, a Notice of In tent (NOI) form will be submitted to the NYSDEC for this pro ject (Appendix B). The NOI will include SWPPP Preparer and project Owner/Operator certification forms. Qualified Inspector Responsibilities • Must meet the requirements of GP-0-20-001. o The Qualified Inspector will be a licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, NYSDEC-endorsed individual, or someone working under the direct supervision of, and at the sam e company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of NYSDEC endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other NYSDEC endorsed entity. • Perform a pre-construction site assessment to verify that erosion and sediment controls are properly installed and functional. • Throughout the active construction period, a Qualified Inspector will conduct inspections of all site areas affected by construction at least once every seven (7) calendar days. If more than five (5) acres of soil is disturbed, inspection frequencies will increase to at least twice every seven (7) calendar days. These two (2) inspections will be separated by a minimum of two (2) full calendar days. At a minimum, the Qualified Inspector will inspect all erosion and sediment control practices and pollution prevention measures to ensure integrity and effectiveness, until the Site is deemed sufficiently stable and no longer requiring inspection. • Prepare an inspection report within one (1) business day of every inspection, which at a minimum, shall include and/or address the following: o Date and time of inspection. o Name and title of person(s) performing the inspection. STORMWATER POLLUTION PREVENTION PLAN PAGE 2 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 2 o A description of the weather and soil conditions (e.g., dry, wet, saturated) at the time of inspection. o A description of the condition of the runoff at all points of discharge from the construction site, including any discharges of sediment and discharges from conveyance systems (i.e., culverts and ditches) and overland flow. o A description of the condition of all natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction which receive runoff from disturbed areas. This shall include identification of any discharges of sediment to the surface waterbody. o Identification of all erosion and sediment control practices and pollution prevention measures that need repair or maintenance. o Identification of all erosion and sediment control practices and pollution prevention measures that were not installed properly or are not functioning as designed and need to be reinstalled or replaced. o Description and sketch of areas with active soil disturbance activity, areas that have been disturbed but are inactive at the time of the inspection, and areas that have been stabilized (temporary and/or final) since the last inspection. o Current phase of construction of all post-construction stormwater management practices and identification of construction that is not in conformance with this SWPPP and technical standards. o Corrective action(s) that must be taken to install, repair, replace, or maintain erosion and sediment control practices and pollution prevention measures; and to correct deficiencies identified with the installation of the PCSM practice(s) (if applicable). o Identification and status of all corrective actions that were required by previous inspection. o Digital photographs, with date stamp, that clearly show the condition of all practices that have been identified as needing corrective actions. The Qualified Inspector shall attach paper color copies of the digital photographs to the inspection report being maintained on-site within seven (7) calendar days of the date of the inspection. The Qualified Inspector shall also take digital photographs, with date stamp, that clearly show the condition of the practice(s) after the corrective action has been complet ed. The Qualified Inspector shall attach paper color copies of the digital photographs to the inspection report that documents the completion of the corrective action work within seven (7) calendar days of that inspection. • Within one (1) business day of the completion of an inspection, the Qualified Inspector shall notify the Owner or Owner’s on-site representative and appropriate contractor or subcontractor personnel of any corrective actions that need to be taken. The contractor or subcontractor 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. All inspection reports will be signed by the Qualified Inspector and copies maintained on-site with the SWPPP. • In the event project activities are temporarily suspended (e.g., winter shutdown) and temporary stabilization measures have been applied to all disturbed areas, the Qualified Inspector will conduct a site inspection at least once every 30 calendar days. The Owner’s representative will notify the Division of Water (DOW) (SPDES) Program contact at the NYSDEC Regional Office (615 Erie Boulevard, West Syracuse, STORMWATER POLLUTION PREVENTION PLAN PAGE 3 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 3 NY 13204), in writing prior to reducing the inspection frequency. Additionally, the Qualified Inspector can discontinue these inspections if all disturbed areas of the Site (as of the project shutdown date) have achieved final stabilization. • Perform a final site inspection. A Construction Duration Inspections Checklist is included as Appendix C. Contractor Requirements • The contractor and subcontractors involved in soil-disturbing activities will identify at least one (1) person from their company that will be responsible for inspection of the SWPPP components defined herein. This individual will have completed the requirements to be considered a “Trained Contractor” in accordance with GP 0 20 - 001, meaning they have received four (4) hours of NYSDEC endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other NYSDEC-endorsed entity. At least one (1) Trained Contractor must be on-site daily when soil-disturbing activities are being performed. Note that the Trained Contractor cannot perform the duties of the Qualified Inspector unless the Trained Contractor also meets the Qualified Inspector qualifications. • The contractor is responsible for all maintenance of erosion and sediment controls in accordance with this SWPPP. Maintenance or repair of installed erosion and sediment controls will be initiated within one (1) business day following notification of deficiencies unless a modified timetable is approved by the Owner’s on -site representative and completed in a reasonable timeframe (i.e., prior to the next scheduled inspection). • The contractor and subcontractors are required to certify that their respective activities will comply with the relevant portions of this SWPPP. All such certifications will be in writing and retained at the Site with the SWPPP document. The contractor certification statement and signature page are included with this SWPPP (Section 5.2). In accordance with GP-0-20-001, all contractors and subcontractors must provide contact information and describe the elements of this SWPPP they are responsible for. • The contractor will perform vehicle/equipment maintenance activities and will store construction materials (such as fuels, fertilizers, construction materials) in a designated area to prevent a potential release to stormwater. • The contractor will implement measures to prevent spills from occurring and to properly respond to spill emergencies, which is discussed further in Section 4.5.1. • The contractor will be responsible for implementing all appropriate spill response procedures when responding to accidental releases of oil, and other pollutant products or materials during the performance of construction activities , which is discussed further in Section 4.5.2. SWPPP Amendments The SWPPP will be amended for any of the following cases: • When a significant change in design, remediation, operation, or maintenance occurs which may have a significant effect on the potential for discharge of pollutants to the waters of the United States and which has not otherwise been addressed in this SWPPP. • When the SWPPP proves to be ineffective in eliminating or significantly minimizing pollutants from sources identified in this SWPPP. STORMWATER POLLUTION PREVENTION PLAN PAGE 4 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 4 • When the SWPPP proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater discharges from the Site. • To identify any new contractor or subcontractor that will implement any measure of the SWPPP. Modifications to the SWPPP will be described and recorded on the Construction Duration Inspection Checklist form in Appendix C. Training Requirements A site-specific employee training program will be developed and implemented to educate employees and outside contractors on the requirements of the SWPPP. This education program will include background on the components and goals of the SWPPP. The progra m will also include hands-on training in erosion controls, spill prevention and response, good housekeeping, proper material handling, disposal and control of waste, equipment fueling, and proper storage, washing and inspection procedures. The SWPPP must also identify periodic dates for such training, which must be conducted at a minimum of one (1) training session per year. On-site employees will be trained prior to their first day on-site. The training program shall be reviewed annually to determine its effectiveness and make any necessary changes to the program. Workers in critical areas (i.e., unloading personnel) will also have specific SWPPP procedures and activities emphasized in their training. All specific SWPPP training will be documented, and sign-in sheets shall be provided for each session, both of which will be retained with the SWPPP on -site. Periodic employee meetings will cover the following items: • Environmental or health and safety incidents; • Upcoming training sessions; • Brief reminders on good housekeeping, pollution prevention and response procedures, and material handling practices; and • New management procedures or other changes to the SWPPP. Employee training program topics will include the following: • Summary of the SWPPP’s purpose and what the SWPPP includes; • Review of good housekeeping measures, maintenance of BMPs, and management of stockpile material onsite; • Demonstrate proper sampling and reporting requirements; • Review and demonstrate basic spill procedures and how to identify them; • Indicate proper disposal methods and locations; and • Inform employees with emergency contacts and telephone numbers. Recordkeeping A copy of this SWPPP, NOI, NOI Acknowledgement Letter, inspection reports, contractor compliance certification, and any other relevant documents will be retained on -site for the duration of project construction activities will be retained in a secured loca tion readily available to individuals performing compliance inspections. Any reports submitted or prepared in conjunction with this SWPPP will be retained by the Owner for a period of at least five (5) years from the date that the NYSDEC receives the Notice of Termination (NOT). STORMWATER POLLUTION PREVENTION PLAN PAGE 5 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 5 1.1. Sizing Criteria This SWPPP includes post-construction stormwater management practices, which will be designed to meet the applicable sizing criteria, as discussed in Part IV of GP -0-20- 001. The criteria include Water Quality Volume (WQv), Runoff Reduction Volume (RRv), Channel Protection Volume (Cpv), Overbank Flood (Qp), and Extreme Flood (Qf), and are defined as follows: • Water Quality Volume (WQv): New York has defined the WQv as the volume of runoff generated from the entire 90th percentile rain event. Essentially, a practice sized using the WQv will capture and treat 90% of all 24-hour rain events. The WQv is directly related to the amount of impervious cover constructed at a site. Pursuant to Section 4.2 of the Design Manual, the following equation can be used to determine the WQv: 𝑊𝑃𝑣=𝑃∗𝑃𝑣∗𝐴 12 where: P = 90% Rainfall Event Rv = 0.05 + 0.009 (I), where I is percent impervious cover A = site area in acres (contributing area) • Runoff Reduction Volume (“RRv”): Reduce the total WQv by application of runoff reduction techniques and standard stormwater management practices with RRv capacity. Pursuant to Section 4.2 of the Design Manual, the 𝑃𝑃𝑣𝑚𝑖𝑚 can be calculated using the following equation: 𝑃𝑃𝑣𝑚𝑖𝑚=𝑃∗𝑃̅𝑣∗𝐴𝑖𝑐∗𝑃 12 where: 𝑃𝑃𝑣𝑚𝑖𝑚= Minimum runoff reduction volume required from impervious area (ac- ft) 𝑃𝑣= = 0.05 + 0.009 (I), where I is 100% impervious Aic = Total area of new impervious cover S = Hydrologic Soil Group (HSG) Specific Reduction Factor (S) • Channel Protection Volume (“Cpv”): Provide 24-hour extended detention of the post-developed 1-year, 24-hour storm event remaining after runoff reduction. The Cpv requirement does not apply when: o Reduction of the entire Cpv is achieved by application of runoff reduction techniques or infiltration systems, or o The site discharges directly to tidal waters, or fifth order or larger streams. • Overbank Flood Control Criteria (“Qp”): Requires storage to attenuate the post- development 10-year, 24-hour peak discharge rate (Qp) to predevelopment rates. The Qp requirement does not apply when: o The site discharges directly to tidal waters or fifth order or larger streams, or o A downstream analysis reveals that overbank control is not required. STORMWATER POLLUTION PREVENTION PLAN PAGE 6 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 6 • Extreme Flood Control Criteria (“Qf”): Requires storage to attenuate the post - development 100-year, 24-hour peak discharge rate (Qf) to predevelopment rates. The Qf requirement does not apply when: o The site discharges directly to tidal waters or fifth order or larger streams, or o A downstream analysis reveals that overbank control is not required. These criteria are further discussed below in Section 3.0 of this SWPPP and are calculated in Appendix I. 1.2. Purpose This SWPPP fulfills the requirements of the New York State Department of Environmental Conservation (NYSDEC) State Pollutant Discharge Elimination System (SPDES) General Permit for Storm Water Discharges from Construction Activity (GP-0- 20-001) (Appendix A). This Stormwater Pollution Prevention Plan (SWPPP) has been prepared on behalf of NY Groton II (South Main Street), LLC. (Owner) to support the proposed construction activities (Work) at South Main Street , Groton, New York, 13073 (Site). The Site is identified on the Tompkins County Tax Map as ID 31-1-12.1. For detailed information regarding the design and planned construction activities, refer to the “Existing and Proposed Site Plans” (Construction Drawings) prepared by P.W. Grosser Consulting Engineer and Hydrogeologist, P.C. (Engineer) included as Appendix D. 1.3. Project Description NY Groton II (South Main Street), LLC is proposing to develop an approximately 4.0- megawatt of alternating current (MW AC) ground-mounted solar facility on a 58.73±- acre site which is located on the south side of South Main Street. The owners would lease 16.17± acres of the subject property to the applicant (i.e., NY Groton II [South Main Street], LLC). The area of disturbance for the proposed action would be approximately 21.02 acres which would include a portion of the northern adjacent parcel (Tax Map No . 26-1-25.22) to be used for the construction of the proposed gravel access road from South Main Street. The proposed action would situate the solar facility on the southern portion of the subject property. The proposed development would include solar modules with a maximum height of 15 feet, the installation of an eight (8)-foot-high deer fence around the proposed solar facility, one (1) concrete equipment pad to house electrical equipment (i.e., one [1] inverter and one [1] transformer), electric utility lines to connect the solar panels to the existing distribution power line along the northeast side of the Site as well as the planting of a vegetative screen consisting of approximately 21 Leyland Cypress trees along the east portion of the Site. The proposed action would also include the construction of a gravel access road from South Main Street. The project area would be approximately 21.02 acres and would result in the clearing of 5.63± acres of woodland/forested area. Additionally, approximately 11.82 acres of agricultural land and 3.57 acres of meadows would be converted to landscaped areas. It is noted that the project area would be seeded with a northeast solar pollinator mix upon clearing. Construction of the solar facility will take place in a singular phase. All improvements are to conform to state, county and local standards and specifications. STORMWATER POLLUTION PREVENTION PLAN PAGE 7 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 7 All solar power generated by the proposed action would be sold as Community Distributed Generation. This program allows subscribed participants to share the benefits of clean energy production. According to the applicant, a mix of residential and commercial customers, specifically New York State Electric and Gas (NYSEG) customers, would be able to receive a share of the solar power generated by the proposed action as well as a discount off their electricity bills. 1.4. Site Description The 58.73-acre Site is undeveloped and consists of predominantly inactive agricultural land as well as forested areas. Review of the NYSDEC Environmental Resource Mapper indicates that the subject property contains a Stream regulated as 898-97 and classified as C (i.e., for fisheries and non-contact activities). Additionally, this Stream is identified on the U.S. Fish and Wildlife Services National Wetlands Inventory (NWI) Mapper as a 5.53-acre Riverine classified as R4SBC. The NWI Mapper also indicates a portion of a 0.35-acre Freshwater Forested/Shrub Wetland classified as PSS1F is located on the southwest portion of the subject property. The NYSDEC Environmental Resource Mapper indicates there are no state-regulated freshwater wetlands on-site. Overall, the surface water features contained on-site total approximately 0.56 acres (see Sheet C- 100 of Construction Drawings in Appendix D). The subject property is zoned within the Rural Agricultural District (RA) and is within the New York State-Designated Agricultural District (Tompkins County Agricultural District 1). Stormwater runoff generated within the project Site limits occurs primarily as sheet flow. Runoff generally flows to Stream 898-97 located in the central north portion of the Site and to wetlands in the southwest portion of the site. Slopes within the Site limits are approximately 10% on average. 1.5. Adjacent Properties The land uses adjacent to the Site include single-family residential and agricultural land uses, as well as forested areas. 1.6. Soils Soils within the Site limits are identified below in Table 1. STORMWATER POLLUTION PREVENTION PLAN PAGE 8 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 8 Table 1 – Existing Soils On-site Map Symbol Unit Map Unit Name Hydrologic Soil Group Rating Ab Alluvial land A/D BgC Bath and Valois soils, 5-15% slopes C BgD Bath and Valois soils, 15-25% slopes C BtF Bath, Valois and Lansing soils, 35-60% slopes C HdC Howard gravelly loam, 5-15% slopes A HdD Howard gravelly loam, 15-25% slopes A LaB Langford channery silt loam, 2-8% slopes D Mm Madalin mucky silty clay loam C/D Mp Muck and peat A/D PhB Phelps gravelly silt loam, 3-8% slopes B/D RnC3 Rhinebeck silty clay loam, 6-12% slopes C/D Ws Wayland soils complex, 0-3% slopes B/D Soil type(s) were identified based on information available from the United States Department of Agriculture (USDA) Web Soil Survey (Appendix E). 1.7. Groundwater Seven (7) test pit excavations, designated as TP-001S through TP-007S, were performed on November 16, 2023, by P.W. Grosser Consulting, Inc. The pits were excavated to 10 feet below grade surface (bgs). Groundwater was not encountered during the field investigation. Refer to the Preliminary Geotechnical Report (Appendix F). 1.8. Precipitation Data Precipitation data for the site was acquired using the National Oceanic and Atmospheric Administration (NOAA) Atlas 14, Volume 10, Version 3 Point Precipitation Frequency Estimates online tool (Appendix G). Error! Reference source not found. below lists the precipitation amounts for various storm events for the Site. Table 2 – Site Precipitation Data Storm Event Precipitation (in) 1-Year, 24-Hour 2.01 10-Year, 24-Hour 3.75 100-year, 24-Hour 5.83 1.9. Project Permitting and Compliance 1.9.1. Municipal Separate Stormwater Sewer System Permit STORMWATER POLLUTION PREVENTION PLAN PAGE 9 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 9 Based on the NYSDEC Stormwater Interactive Map, the Site does not lie within a Municipal Separate Stormwater Sewer System (MS4). 1.9.2. Office of Parks, Recreation and Historic Preservation Review In accordance with the GP-0-20-001, any construction activities that have the potential to affect historic and/or archaeological resources are not eligible for coverage under the general permit unless the screening and consultation process specified in the Letter of Resolution that was developed between the NYSDEC and the NYS Office of Parks, Recreation and Historic Preservation (OPRHP) has been completed and the required documentation demonstrating that potential impacts have been avoided or mitigated is o btained and maintained on-site. Review of the New York State Cultural Resource Information System (CRIS) indicates that the Site does not lie within an archaeological sensitive area and there are no registered historic resources within the vicinity of the Site. It is noted that Bergmann and Associates, Inc. submitted a project consultation with OPRHP and a No Impact determination was issued on October 26, 2022, which is included a s Appendix H. STORMWATER POLLUTION PREVENTION PLAN PAGE 10 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 10 2.0 CONSTRUCTION SEQUENCE AND SCHEDULING This section outlines the general sequence of activities that will take place prior to, during and following development of the Site regarding the implementation of erosion and sediment control measures. Specific construction activity sequencing may vary depending on actual field conditions encountered at time of construction or as the project progresses. Any implemented changes to the construction sequencing will be completed in compliance with applicable regulatory requirements and the overall objectives described in Section 1.0. Additional sequence and phasing information can be found on the Construction Drawings (Appendix D). The general sequence of activities which require soil disturbance will include the following items described below: 1. Install erosion and sediment controls per the requirements of this SWPPP. The primary controls to be installed will include a stabilized construction entrance (SCE), silt fence and drop inlet protection, as necessary. 2. Perform pre-construction site assessment to confirm all appropriate erosion and sediment controls are in place and properly installed. 3. Clear project location of vegetation and overgrowth. 4. Strip and segregate existing topsoil and gravel, where possible, for potential reuse during restoration. 5. Grade site per Sheet C-200 of the Construction Drawings (Appendix D). 6. Excavation and backfill for installation of underground utilities, transformer and drainage structures (i.e., water bars and rain gardens). 7. Installation of remaining temporary and permanent erosion and sediment controls. 8. Grading and installation of gravel access road. 9. Perform seedbed preparation activities (e.g., topsoiling, surface roughening, fertilizing, and liming) in areas to be vegetated. 10. Installation of deer fence and solar array s, utilities, and appurtenances. Trench excavation/backfill areas will be stabilized progressively with the Ernest Northeast Solar Pollinator 3’ mix. 11. Complete plantings per the specifications and layout outlined in the Construction Drawings (Appendix D). 12. Remove stabilized construction entrance (SCE), all construction equipment, materials, support facilities, and project-derived waste from the Site. 13. Remove all remaining erosion and sediment controls upon final stabilization and inspection in accordance with Section 4.6. Specific construction activity scheduling may vary depending on field conditions encountered at the time of construction. The construction sequence described below is expected to start in the fall of 2024. STORMWATER POLLUTION PREVENTION PLAN PAGE 11 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 11 3.0 POST-CONSTRUCTION STORMWATER MANAGEMENT Development of the Site would include erosion and sediment control practices, as well as post-construction stormwater management practices, to reduce the pollutants in stormwater discharges. It is noted the proposed development would increase the impervious area on-site by approximately 0.72 acre. Eight (8) rain gardens and one (1) french drain are proposed to reduce the total WQv and meet RRv runoff requirements. The post construction peak discharge rate is less than predevelopment rates, however the overall runoff has been increased, so additional storage has been provided to meet Overbank and Extreme Flood Control requirements. A hydraulic analysis of pre-development and post development conditions has been performed and is discussed below. 3.1. Water Quality Volume Calculations The proposed development for the Site involves the construction of a solar facility, access road, fencing and drainage components. The Water Quality Volume (WQv) sizing criteria has been addressed by designing the solar panels to be constructed on post systems (or approved equal) which are elevated off the ground surface, designing the solar panels to be spaced apart and sloped as to allow rainwater to flow off said panels as sheet flow across the ground surface, designing the location of individual rows o f solar panels to typically be installed parallel to the Site’s topography so that rainwater sheet flows down slope via water bars and constructing the proposed ground surface below the panels with a well-established vegetative cover. Post-development, stormwater runoff would flow towards the proposed rain gardens located in the western and southern portions of the solar facility. Overflow stormwater runoff beyond a one (1)-inch storm event from the rain gardens would flow towards the stream located on the northwest portion of the subject property , and wetlands in the southwest portion of the subject property. WQv calculations have been included in Appendix I. Based on the NYSDEC 90th percentile contour lines, the 90% rainfall event for the Site is assumed to be one (1) inch. Based on the calculations, all drainage areas provide more storage volume than what is required to capture, treat and discharge 100% of the WQvs calculated for each drainage area. Table 3 – Water Quality Volume and Runoff Reduction Requirements Water Quality Volume (ac-ft) Minimum Runoff Reduction Volume (ac-ft) 0.148 0.034 Runoff reduction volume would flow towards the rain gardens, which are situated at lower points on the proposed grade to allow the existing grade to flow the runoff to these points. Total storage is summed up and presented in Error! Reference source not found. below. STORMWATER POLLUTION PREVENTION PLAN PAGE 12 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 12 Table 4 – Runoff Reduction Storage Provided Runoff Reduction Volume Provided (ac-ft) 0.289 3.2. Water Quantity Volume Calculations 3.2.1. Pre-Development Conditions Analysis A pre-development analysis was conducted to establish the existing conditions peak discharge rates for the 1-, 10- and 100-year frequency storm events. The discharge values correspond to the Channel Protection Volume (Cpv), Overbank Flood Control Criteria (Qp) and Extreme Flood Control Criteria (Qf) sizing criteria per GP -0-20- 001. Design Points represent locations on-site within the area of disturbance where stormwater exits from the site. Pre- and post-construction sub catchment areas have been identified with design points labeled as well. Design Points for the pre - and post-construction conditions are described below in Table 5 and are presented on Figure SWP-100 in Appendix I: Table 5 – Pre-Construction Stormwater Design Points Design Point Description DP-1 Discharge to the Northwest corner of the project area DP-2 Discharge to the South section of the project area Existing land cover types and their respective areas were identified and delineated using BING aerial imagery and AutoCAD Civil3D to calculate the weighted Curve Number (CN) for each of the drainage areas. Areas were classified as one (1) of the following values: 1. Meadow, non-grazed (HSG D), CN = 78 2. Woods (Fair; HSG D), CN = 79 Time of concentration (Tc) paths for each individual drainage area were determined for the Site utilizing available topography data and calculated using USDA Technical Release 55 (TR-55) Urban Hydrology for Small Watersheds methodology for calculating travel time for sheet flow and shallow concentrated flow as applicable. A pre-developed conditions drainage plan depicting drainage area limits and Tc paths can be found in Appendix I. Peak discharges for each drainage area were calculated for both the 10-Year,24-hour and 100-Year, 24-hour storm events using the SCS Method for Type II rainfall distribution using HydroCAD software. The existing conditions peak discharges for each drainage area are summarized in Table 6 below. STORMWATER POLLUTION PREVENTION PLAN PAGE 13 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 13 Table 6 – Pre-Developed Drainage Conditions Summary Drainage Area Area (ac) Weighted CN Tc (min) Runoff Volume (ac-ft) 1-Year, 24-Hour Storm Peak Discharge (cfs) 1-Year, 24-Hour Storm Runoff Volume (ac-ft) 10-Year, 24-Hour Storm Peak Discharge (cfs) 10-Year, 24-Hour Storm Runoff Volume (ac-ft) 100- Year, 24- Hour Storm Peak Discharge (cfs) 100-Year, 24-Hour Storm A 6.92 79 15.3 0.305 4.27 1.016 15.45 2.035 30.93 B 14.46 78 15.6 0.590 8.03 2.036 30.64 4.132 62.30 Total 21.38 - - 0.895 12.30 3.052 46.09 6.167 93.23 Detailed calculations for each drainage area can be found in Appendix I. 3.2.2. Post-Development Conditions Analysis A post-development analysis was conducted to design post -construction stormwater management features that meet Cpv and peak rate control sizing criteria per GP-0-20-001. Design Points represent locations on-site within the area of disturbance where stormwater exits from the site. Pre- and post-construction sub catchment areas have been identified with design points labeled as well. Design Points for the pre - and post-construction conditions are described below in Table 5 and are presented on Figure SWP-100 in Appendix I: Table 7 – Post-Construction Stormwater Design Points Design Point Description DP-1 Discharge to the rain garden in the Northwest corner of the project area DP-2 Discharge to the rain garden in the Southwest corner of the project area DP-3 Discharge to the rain garden in the South section of the project area The required Cpv controls are designed to protect downstream channels from erosion. The Cpv is retrieved by providing extended detention of the 1 -year storm event for a period of 24 hours. Ponds that do not meet the 24 -hour extended detention period will utilize the minimum three (3)-inch orifice as required by the regulations. The Cpv detention time is shown in Table 4 -3.1 below and the calculated results are shown in Appendix I. Proposed land cover types and their respective were based off the Construction Drawings (Appendix D) and were used to calculate the weighted CN for each of the drainage areas. Areas were classified as one of the following values: 1. Meadow, non-grazed (HSG D), CN = 78 2. Gravel surface, CN = 96 STORMWATER POLLUTION PREVENTION PLAN PAGE 14 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 14 A post-developed conditions drainage plan depicting drainage area limits, proposed cover types, and drainage feature layout can be found in Appendix I. Peak discharges for each drainage area were calculated for both the 10 -Year,24-hour and 100-Year, 24-hour storm events using the SCS Method for Type II rainfall distribution using HydroCAD software. The post-developed conditions peak discharges for each drainage area are summarized in Table 6 below. Table 6 – Post-Developed Drainage Conditions Summary Drainage Area Area (ac) Weighted CN Tc (min) Runoff Volume (ac-ft) 1-Year, 24- Hour Storm Peak Discharge (cfs) 1-Year, 24-Hour Storm Runoff Volume (ac-ft) 10- Year, 24- Hour Storm Peak Discharge (cfs) 10-Year, 24-Hour Storm Runoff Volume (ac-ft) 100- Year, 24- Hour Storm Peak Discharge (cfs) 100-Year, 24-Hour Storm A 6.92 80 13.0 0.328 5.10 1.059 17.47 2.092 34.22 B 14.46 78 20.5 0.590 6.80 2.036 26.42 4.132 54.05 Total 21.38 - - 0.918 11.90 3.095 43.89 6.224 88.27 The post-construction stormwater management system for the proposed development provides a reduction in the peak discharge rates for the Site for both the 10-year, 24-hour and 100-year, 24-hour storm events. Detailed calculations for each drainage area can be found in Appendix I. 3.3. Summary of Post Stormwater Controls WQv is proposed to be reduced through use of Runoff Reduction Techniques, which would include the utilization o f six (6) rain gardens. The volume of the proposed rain gardens exceeds the total WQv (i.e., 0.146 acre-feet) for the Site, which is shown in Error! Reference source not found. above in Section 3.1. The pre-development conditions compared to the post-development conditions indicate that peak discharge is reduced for all three (3) criteria, specifically, the Channel Protection Volume, Overbank Flood Control Criteria, and the Extreme Flood Control Criteria, which is shown below in Error! Reference source not found.. This is mainly due to improving soil conditions by seeding the project area with a pollinator -friendly seed mix, as well as mulching. However, runoff volume for all three criteria increases slightly as shown in the Table 9 below. Additional storage has been provided for the 1 year, 10 year, and 100 year storms, to mitigate the post-development runoff to less than pre- development conditions. Storage volumes from the rain gardens are shown in Table 4 above. STORMWATER POLLUTION PREVENTION PLAN PAGE 15 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 15 Table 7 – Pre-Development and Post-Development Drainage Conditions Summary Criteria Value Channel Protection Volume (Cpv) Runoff Volume 1-Year, 24-Hour Pre-Development (ac-ft.) 0.895 Post-Development (ac-ft.) 0.918 Percent Change 2.6% Peak Discharge 1-Year, 24-Hour Pre-Development (cfs) 12.30 Post-Development (cfs) 11.90 Percent Change -3.3% Overbank Flood Control Criteria (Qp) Runoff Volume 10-Year, 24-Hour Pre-Development (ac-ft.) 3.052 Post-Development (ac-ft.) 3.095 Percent Change 1.4% Peak Discharge 10-Year, 24-Hour Pre-Development (cfs) 46.09 Post-Development (cfs) 43.89 Percent Change -4.8% Extreme Flood Control Criteria (Qf) Runoff Volume 100-Year, 24-Hour Pre-Development (ac-ft.) 6.167 Post-Development (ac-ft.) 6.224 Percent Change 0.9% Peak Discharge 100-Year, 24-Hour Pre-Development (cfs) 93.23 Post-Development (cfs) 88.27 Percent Change -5.3% As the drainage analysis indicates that the post -development overall runoff conditions are greater than the pre-development conditions, additional stormwater storage has been provided on top of the required WQv, as shown in Table 4 above. 3.4. Post-Construction Maintenance The estimated maintenance schedule for the post -construction stormwater management practices is summarized below. The Owner/Operator shall be responsible for ensuring proper maintenance is performed as needed. 1. Water Bars a. Sediment and rubbish removal should be done at least twice a year or as necessary to ensure the system is functioning properly. 2. Rain Gardens a. At the end of each season in the late fall or winter, the growth can be mowed. b. Sediment removal should be done at least every five (5) years. i. Any sediment accumulation shall be removed. A Drainage Landscape Operation, Maintenance and Management Inspection Checklist is included as Appendix J. STORMWATER POLLUTION PREVENTION PLAN PAGE 16 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 16 4.0 EROSION AND SEDIMENT CONTROL The purpose of this section is to identify and address pollutants that could impact stormwater during construction activities. Site-related pollutants include concrete, dust and other debris. Activities that could impact stormwater include earthwork, waste disposal, and vehicular traffic. Site-related pollutants can originate from the handling, sorting, temporary storage, transport and disposal of soil, stone, and debr is that will be generated from site activities. This section also serves to identify th e types of temporary and permanent erosion and sediment controls that will be used during site activities. All erosion and sediment controls will be installed and maintained in accordance with the latest edition of the NYS Standards and Specifications for Erosion and Sediment Control (NYS Standards and Specifications). Erosion and sediment controls specific to this project are provided in the Construction Drawings (Appendix D). 4.1. Identification and Control of Potential Stormwater Pollutants 4.1.1. Significant Material Inventory Pollutants that result from the redevelopment of the site that have the potential to be present in stormwater runoff are listed in Table 10. Table 8 – Potential Site Stormwater Pollutants Trade Name Material Chemical/Physical Description Stormwater Pollutants Wastewater from demolition equipment Water Soil, oil & grease, solids Hydraulic oil/fluids Brown oily petroleum hydrocarbon Mineral oil Gasoline Colorless, pale brown or pink petroleum hydrocarbon Benzene, ethylbenzene, toluene, xylenes Diesel Fuel Clear, blue-green to yellow liquid Petroleum distillate, oil & grease, naphthalene, xylenes Kerosene Pale yellow liquid petroleum Hydrocarbon Coal oil, petroleum distillates Antifreeze/coolant Clear green/yellow liquid Ethylene glycol, propylene glycol, heavy metals (copper, lead, zinc) Erosion Solid particles Soil, sediment 4.1.2. Potential Sources for Stormwater Pollution The following potential source areas of stormwater pollution were identified and evaluated: STORMWATER POLLUTION PREVENTION PLAN PAGE 17 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 17 • Construction Site Entrance • Drive Area Construction • Construction Equipment • Construction Material and Equipment Staging Areas • Waste Material Staging Areas • Topsoil and Fill Material Staging Areas • Clearing And Grading Areas • Utility Installation Table 11 presents site-specific information regarding the stormwater pollution potential from each of these areas. Table 9 – Locations of Potential Sources of Stormwater Pollution Potential Storm Water Pollution Point Potential Pollutants Potential Problem Construction Site Entrances, Drive Areas, Construction Material and Equipment Staging Areas, and Waste Material Staging Areas. hydraulic oil, gasoline, antifreeze, soil erosion Leaking hydraulic oil and antifreeze from clearing and grading equipment. Gasoline and diesel fuel spills while fueling equipment, and erosion of exposed and stockpiled soils. Tracking of soil into the road through the construction site entrance(s). Clearing And Grading Areas, Topsoil and Fill Material Storage Areas Soil erosion, SVOCs, metals, Landscaping materials (e.g., mulch, fertilizer, pesticides and PCBs), Vegetative debris from clearing operations Erosion of soils from clearing and grading areas have the potential to discharge into local surface water bodies. Utility Installation Soil erosion Erosion of soils from excavation and grading areas have the potential to be discharged from the site. 4.1.3. Good Housekeeping Practices Good housekeeping and spill control practices will be followed during site activities to minimize stormwater contamination from concrete, petroleum products and waste materials. Good housekeeping and spill control practices include the following: • Materials and equipment necessary for spill cleanup shall be maintained onsite in the equipment and waste material storage area, covered and secured. Equipment will include, but is not limited to, brooms, dust pans, mops, rags, gloves, goggles, plastic trash containers and trash liners. STORMWATER POLLUTION PREVENTION PLAN PAGE 18 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 18 • On-site vehicles shall be monitored for leaks and will receive regular preventive maintenance to reduce the possibility of leakage. • Petroleum products shall be stored in tightly sealed containers which are clearly labeled. • Spill kits shall be included with all fueling sources and maintenance activities. • Spills shall be cleaned up immediately upon discovery. Spills large enough to reach the surface waters will be reported to the National Response Center at 1-800-424-8802. • Dump trucks hauling material from the site shall be covered with a tarpaulin. • Paved streets adjacent to the site entrances shall be swept as needed to remove excess mud, dirt, or rock tracked from the site. • Ruts caused by equipment used for clearing and grubbing shall be regraded. 4.2. Temporary Erosion and Sediment Controls Temporary erosion and sediment control measures will be installed prior to initiation of soil disturbing activities. This section identifies the types of temporary erosion and sediment controls that will be used during site activities. Each of the practices listed below are located on Sheet C-201 of the Construction Drawings and detailed on Sheet C - 601 of the Construction Drawings (Appendix D). 4.2.1. Site Planning and Prevention Measures This project will implement the following site planning and prevention measures for effective temporary and final erosion control during construction: • The contractor and Owner will work together to properly plan and sequence construction events in an effort to minimize the time that soil and stockpiled materials are exposed. • Temporary stockpiles of soil will be located in upland areas where stockpiles are protected from significant runoff. Additional stormwater perimeter controls may be required at downgradient locations. • Restore the surface (i.e., achieve the design grade and establish the vegetative cover or gravel) as soon as possible. • The contractor and Owner will evaluate site conditions prior to site clearing to determine if existing vegetation can be preserved or transplanted to the extent practical. 4.2.2. Stabilized Construction Entrance An SCE will be installed at the proposed site ingress/egress along South Main Street at the location indicated on Sheet C-201 of the Construction Drawings (Appendix D) and will be maintained throughout construction. The SCE shall be constructed with a 6-inch minimum layer of stone as indicated on the detail provided on Sheet C-601 of the Construction Drawings (Appendix D). The length of the SCE should be a minimum of 50 feet. The exact locations and lengths of the SCEs shall be determined by the contractor and Owner’s on-site STORMWATER POLLUTION PREVENTION PLAN PAGE 19 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 19 representative on a case-by-case basis. The stabilized entrance shall capture mud and debris from vehicles before entering public roads to minimize the tracking of sediments off the property and will assist in controlling dust on the site. The contractor will be responsible for placing additional stone on the SCE as site activities progresses as necessary to maintain effectiveness. The SCE would be constructed such that any stormwater runoff that exits the Site would flow through the SCE to allow for the SCE to assist in filtering out sediment from the stormwater runoff. Additional SCEs would be installed as necessary at the work site if additional entrances are required as part of the proposed Work. The SCE(s) are to remain in place for the duration of the Work and until final site stabilization. 4.2.3. Perimeter Sediment Controls Silt fencing with wire mesh backing will be used to reduce the potential migration of suspended sediments from work areas to downgradient off-site areas. Silt fence will be installed along the limits of disturbance as well as on the vulnerable side of soil stockpiles (where applicable) and extend approximately 20% around the perimeters. The locations of the silt fence are as shown on Sheet C -201 of the Construction Drawings (Appendix D) and will be positioned parallel to the existing contours to the extent practical. Silt fence may also be installed around construction material and equipment staging areas, and as otherwise needed to control potential off-site migration of suspended sediments in sheet flow. 4.2.4. Drop Inlet Protection The silt fence will remain until all construction activities are completed. Care will be taken to install drop inlet protection for any drainage structures (if applicable) along South Main Street to prevent sediment build-up. 4.2.5. Dust Control Dust (particulate matter) control measures shall be implemented throughout the duration of the construction activities. The following dust control measures shall be implemented in driving areas: • Limit on-site vehicle speed limits. • Sweeping of roadways and other hard surfaces. • Spray water from a domestic water supply on dry material being loaded on trucks that might release dust. Water for dust suppression shall be applied such that runoff does not occur and excessive “water weight” is not added to the soil. • Cover trucks carrying loose material such as debris generated by site activities, excavated soil or fill and verify that the covers are properly sealed. STORMWATER POLLUTION PREVENTION PLAN PAGE 20 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 20 The following dust control measures shall be implemented at soil stockpiles in non-driving areas: • Spray water from a domestic water supply on stockpiles with appropriate distribution equipment that shall be kept on-site throughout the duration of the site activities. Water for dust suppression shall be applied such that runoff does not occur and excessive “water weight” is not added to the soil . • Cover stockpiles with plastic sheeting and verify that the covers are properly weighed down. 4.2.6. Temporary Seeding Temporary seeding of select areas may be implemented to reduce the potential for erosion and sediment transport from disturbed areas, bare soil areas, or soil stockpile areas. This seeding will be applied to provide a temporary protective cover on disturbed areas when construction activities have temporarily ceased, such as when preparing for winter shutdown, or to provide cover when permanent seed growth is delayed due to mid-summer heat or drought. If bare soil is exposed for more than 14 days, temporary seeding or other controls will be utilized to the extent practicable and will be initiated by the end of the next workday. Note that seeding should be performed promptly after completing the grading activities to minimize the need for surface roughening. Areas to be seeded will be scarified as needed prior to seeding. Seed mix will be the Ernest Northeast Solar Pollinator 3’ Mix. Runoff control measures shall be installed, as needed, prior to seeding to reduce the potential for erosion of the newly seeded area. 4.2.7. Topsoiling If seeding specification follows the “Permanent Seeding” Section, topsoil is not required at the project site. 4.2.8. Mulching Mulching will be performed immediately following seeding per NYS Standards and Specifications and the Landscape Plans and Details shown on the Const ruction Drawings (Appendix D). Mulching provides immediate erosion control during the establishment of vegetation, moderation of seedbed conditions (e.g., temperature and moisture) and serves as a dust control measure. Air-dried hay or straw mulch, which will be free of undesirable and course materials, will be applied at a rate of approximately two (2) tons (i.e., 100-200 bales) pounds per acre. Small grain straw would be utilized. 4.2.9. Surface Roughening Surface roughening will aid in the establishment of vegetative cover from seed, reduce runoff velocity and increase infiltration, and trap sediment. Surface roughening includes creating horizontal grooves across a slope (i.e., perpendicular to the downslope direction) using a spike-tooth harrow, tilling equipment, disking STORMWATER POLLUTION PREVENTION PLAN PAGE 21 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 21 attachments, or tracking the area with appropriate construction equipment. The type of surface roughening techniques will be determined in the field by the contractor and the Owner’s on-site representative. 4.3. Permanent Erosion and Sediment Controls 4.3.1. Permanent Seeding Permanent seeding and sodding shall be implemented per NYS Standards and Specifications and the Landscaping Plan shown on Sheet C-500 of the Construction Drawings (Appendix D). This seeding will be applied to provide a protective cover following achievement of final grades or during a long-term dormancy period (e.g., longer than one [1] year). Consistent with temporary seeding, permanent seeding should be done promptly after completing the final grading activities to minimize the need for surface roughening. Areas to be seeded will be scarified as needed prior to seeding. Runoff control measures will be installed, as needed, prior to seeding to reduce the potential for erosion of the newly seeded area. 4.3.2. Water Bars Water bars are proposed for permanent erosion and stormwater controls across graded areas every 125 feet. Water bars are to be installed per the Site’s design plans and per the Design Manual. Water bars are intermittent ridges constructed across a slope to limit the accumulation of erosive velocity of water by reducing energy at pre-designed intervals. 4.4. Maintenance of Erosion and Sediment Controls As indicated in Section 1.0, the contractor is responsible for all maintenance of erosion and sediment controls in accordance with this SWPPP. The following maintenance practices shall be used to maintain erosion and sediment controls: • Excess sediment buildup will be removed from silt fencing when it has reached one-third the height of the barrier/fence. Fabric will be replaced when bulges or tears develop; silt fencing will be reinstalled if the fabric is not securely attached to the wire mesh and fence posts, the fabric is not properly entrenched in the ground, or if the fence posts are not properly secured in the ground. • Stabilized construction entrances will be stabilized by topping with aggregate as necessary and as construction proceeds. Sediment which is washed or tracked to public rights-of-way will be removed immediately . • Excess sediment buildup will be removed from drainage structures. • The site shall be maintained and remain free of refuse and debris. • All seeded areas will be fertilized, reseeded as necessary, and mulched to maintain a vigorous, dense vegetative cover. STORMWATER POLLUTION PREVENTION PLAN PAGE 22 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 22 4.5. Pollution Prevention As indicated in Section 1.0 and in addition to the good housekeeping practices discussed in Section 4.1.3, the contractor will implement measures to prevent spills from occurring and to properly respond to spill emergencies. 4.5.1. Spill Prevention Plan At a minimum, the Site will be equipped with at least one (1) spill kit consisting of sorbents, absorbent booms, and fire extinguishers. In the event of a spill or leakage, the contractor will be responsible for safely mitigating the source condition and removal/disposal of any impacted materials. The contractor will take the following precautions to minimize the potential for spills of fuel or lubricants during construction activities: • Place secondary containment measures around all fuel and lubricant storage tanks/units. • Perform refueling activities on level ground within designated vehicle/equipment maintenance and fueling areas, away from steep slopes and runoff conveyance features (e.g., ditches, storm sewers, catch basins, etc.). • Do not leave equipment unattended during refueling. • Smoking, snacking, eating, etc., only in areas designated for such activities, that are located away from the refueling area. • Engines will not be running when refilling fuel tanks. • Replacing fuel caps immediately after filling and before starting the engine. • Securing fuel pump dispensers when not in use to avoid accidental fuel release. • Perform inspections and tests of equipment and portable fuel tanks to check for leaks and evaluate the condition of hoses and connections. If leaks are observed, transfer the contents to an alternate tank/storage unit and replace the equipment/tank or repair the leak, as appropriate. • Maintain all equipment in accordance with the manufacturer’s specifications. • Operate all vehicles and equipment safely and park them a safe distance away from site hazards and sensitive resources. 4.5.2. Spill Response Plan All spills will be immediately reported by the contractor to federal, state, and local agencies as required, as well as the Owner and Owner’s representatives. Reporting requirements of spills to necessary agencies will be in accordance with applicable regulations, and would include the following: • Ceasing operation of the affected equipment. • Containing the spill: If the spilled material is floating on a water surface, spill-absorbent pads/booms will be placed across the path of the floating STORMWATER POLLUTION PREVENTION PLAN PAGE 23 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 23 spill. If the spilled material sinks below the water surface, a dam, weir, or other containment method will be used to stop the flow of the spilled material. If the spill occurs on land, in a ditch, dam, or other, a containment unit will be constructed to stop the flow of the spilled material. Absorbent material will be applied as necessary. • Cleaning up the spill: Spills in water will be recovered using the most appropriate measure until the spilled material is recovered (and no sheens or other evidence of the spill are observed). Spills on land will be recovered using pumps, sorbent material, hand tools, and/or heavy equipment, as necessary, until the spilled material is recovered. • Containerizing spill materials: Spilled materials, impacted soils, sorbent pads, and other spill cleanup or containment materials will be containerized in NYS Department of Transportation-approved containers. The containers will be labeled with the waste type and date of accumulation in accordance with applicable regulations. Samples will be collected to characterize the spilled materials for disposal, as required. • Disposing of spill materials: Impacted materials and spill cleanup debris will be disposed of at a facility permitted to accept such materials. • Performing post-spill maintenance: Following cleanup of the spill, the contractor’s project manager will verify that all used spill cleanup material and equipment have been disposed, or decontaminated, as appropriate. If the equipment that caused the spill cannot be properly repaired, replacement equipment will be obtained. In the event of a spill and/or emergency, the contractor’s project manager will also complete the activities described below: • Immediately notify appropriate site personnel (i.e., Owner’s on -site representative). • Inform all site personnel of any potential hazards and required levels of personal protective equipment (PPE) to conduct the cleanup. • Record the following information pertaining to the spill: o Name of the person(s) who identified and reported the spill incident; o Date, time, and location; o Brief description and cause of the spill; o Estimated quantity and type of material spilled; o Extent and description of impacts to soil, sediment, and water from the spill; o Any damages or injuries related to the spill; and o Actions completed to stop, contain or control, and clean up the spill. • If there is an immediate threat to human health or the environment, the contractor will promptly notify the appropriate authorities (i.e., local police, fire department, hospitals, and state and local emergency response teams). • Coordinate spill reporting to the appropriate agencies (e.g., NYSDEC). STORMWATER POLLUTION PREVENTION PLAN PAGE 24 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 24 4.6. Final Stabilization and Cleanup After construction is complete the disturbed areas not containing pavement, riprap, cobble, etc., will be permanently stabilized. Once construction activities are complete in an area, it shall be stabilized with permanent seed and mulch within seven (7) da ys. The temporary control measures other than perimeter controls will be removed during final grading. The temporary perimeter controls (e.g., silt fence) will not be removed until all construction activities at the Site are complete and soils have been stabi lized. STORMWATER POLLUTION PREVENTION PLAN PAGE 25 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 25 5.0 CERTIFICATIONS 5.1. Preparers Certifications “I certify that this document and all attachments were prepared under my direction and supervision in accordance with the current SPDES General Permit. Qualified personnel performed due diligence in gathering and evaluating the information contained in thi s SWPPP. Based on my design and inquiry of the Owners and/or sponsors of the project, the information contained in this SWPPP is true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the p ossibility of fine and imprisonment.” Michael Scanlon, PE Preparers’ Name Signature Project Manager P.W. Grosser Consulting Title Firm Name 630 Johnson Avenue, Suite 7, Bohemia, NY 11716 (631)589-6353 Firm Address Firm Telephone Number South Main Street, _________ Town of Groton, New York 13073 Site Address 5/28/24 Certification Date STORMWATER POLLUTION PREVENTION PLAN PAGE 26 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Page 26 5.2. Contractors & Subcontractors Compliance Certifications “I hereby certify 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 site activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore, I understand that certifying false, incorrect or inaccurate information is a violation of the referenced permit and the laws of the State of New York and could subject me to criminal, civil and/or administrative proceedings.” Trained Contractor’s Name Signature Responsible for the following SWPPP Measures: Title 1. 2. Firm Name 3. 4. Firm Address 5. 6. Firm Telephone Number 7. 8. Site Address 9. 10. Certification Date STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX A NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM CONSTRUCTION ACTIVITY (PERMIT NO. GP-0-20-001) WYORK Department of :TEOF OITTUNITY Environmental Conservation NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES From CONSTRUCTION ACTIVITY Permit No. GP-0-20-001 Issued Pursuant to Article 17, Titles 7, 8 and Article 70 of the Environmental Conservation Law Effective Date: January 29, 2020 Expiration Date: January 28, 2025 John J. Ferguson Chief Permit Administrator Address: NYS DEC Division of Environmental Permits 625 Broadway, 4th Floor Albany, N.Y. 12233-1750 I PREFACE Pursuant to Section 402 of the Clean Water Act (“CWA”), stormwater discharges from certain construction activities are unlawful unless they are authorized by a National Pollutant Discharge Elimination System (“NPDES”) permit or by a state permit program. New York administers the approved State Pollutant Discharge Elimination System (SPDES) program with permits issued in accordance with the New York State Environmental Conservation Law (ECL) Article 17, Titles 7, 8 and Article 70. An owner or operator of a construction activity that is eligible for coverage under this permit must obtain coverage prior to the commencement of construction activity. Activities that fit the definition of “construction activity”, as defined under 40 CFR 122.26(b)(14)(x), (15)(i), and (15)(ii), constitute construction of a point source and therefore, pursuant to ECL section 17-0505 and 17-0701, the owner or operator must have coverage under a SPDES permit prior to commencing construction activity. The owner or operator cannot wait until there is an actual discharge from the construction site to obtain permit coverage. *Note: The italicized words/phrases within this permit are defined in Appendix A. I NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM CONSTRUCTION ACTIVITIES Table of Contents Part 1. PERMIT COVERAGE AND LIMITATIONS .............................................................1 A. Permit Application .................................................................................................1 B. Effluent Limitations Applicable to Discharges from Construction Activities ...........1 C. Post-construction Stormwater Management Practice Requirements ....................4 D. Maintaining Water Quality .....................................................................................8 E. Eligibility Under This General Permit .....................................................................9 F. Activities Which Are Ineligible for Coverage Under This General Permit ..............9 Part II. PERMIT COVERAGE ...........................................................................................12 A. How to Obtain Coverage .....................................................................................12 B. Notice of Intent (NOI) Submittal ..........................................................................13 C. Permit Authorization ............................................................................................13 D. General Requirements For Owners or Operators With Permit Coverage ...........15 E. Permit Coverage for Discharges Authorized Under GP-0-15-002 .......................17 F. Change of Owner or Operator .............................................................................17 Part III. STORMWATER POLLUTION PREVENTION PLAN (SWPPP)...........................18 A. General SWPPP Requirements ..........................................................................18 B. Required SWPPP Contents ................................................................................20 C. Required SWPPP Components by Project Type .................................................24 Part IV. INSPECTION AND MAINTENANCE REQUIREMENTS .....................................24 A. General Construction Site Inspection and Maintenance Requirements ..............24 B. Contractor Maintenance Inspection Requirements .............................................24 C. Qualified Inspector Inspection Requirements ......................................................25 Part V. TERMINATION OF PERMIT COVERAGE ...........................................................29 A. Termination of Permit Coverage .........................................................................29 Part VI. REPORTING AND RETENTION RECORDS ......................................................31 A. Record Retention ................................................................................................31 B. Addresses ...........................................................................................................31 Part VII. STANDARD PERMIT CONDITIONS ..................................................................31 A. Duty to Comply....................................................................................................31 B. Continuation of the Expired General Permit ........................................................32 C. Enforcement ........................................................................................................32 D. Need to Halt or Reduce Activity Not a Defense...................................................32 E. Duty to Mitigate ...................................................................................................33 F. Duty to Provide Information .................................................................................33 G. Other Information ................................................................................................33 H. Signatory Requirements ......................................................................................33 I. Property Rights ...................................................................................................35 J. Severability..........................................................................................................35 K. Requirement to Obtain Coverage Under an Alternative Permit ...........................35 L. Proper Operation and Maintenance ....................................................................36 M. Inspection and Entry ...........................................................................................36 N. Permit Actions .....................................................................................................37 O. Definitions ...........................................................................................................37 P. Re-Opener Clause ..............................................................................................37 Q. Penalties for Falsification of Forms and Reports .................................................37 R. Other Permits ......................................................................................................38 APPENDIX A – Acronyms and Definitions .......................................................................39 Acronyms......................................................................................................................39 Definitions .....................................................................................................................40 APPENDIX B – Required SWPPP Components by Project Type ....................................48 Table 1..........................................................................................................................48 Table 2..........................................................................................................................50 APPENDIX C – Watersheds Requiring Enhanced Phosphorus Removal ........................52 APPENDIX D – Watersheds with Lower Disturbance Threshold .....................................58 APPENDIX E – 303(d) Segments Impaired by Construction Related Pollutant(s) ...........59 APPENDIX F – List of NYS DEC Regional Offices ..........................................................65 (Part I) Part 1. PERMIT COVERAGE AND LIMITATIONS A. Permit Application This permit authorizes stormwater discharges to surface waters of the State from the following construction activities identified within 40 CFR Parts 122.26(b)(14)(x), 122.26(b)(15)(i) and 122.26(b)(15)(ii), provided all of the eligibility provisions of this permit are met: 1. Construction activities involving soil disturbances of one (1) or more acres; including disturbances of less than one acre that are part of a larger common plan of development or sale that will ultimately disturb one or more acres of land; excluding routine maintenance activity that is performed to maintain the original line and grade, hydraulic capacity or original purpose of a facility; 2. Construction activities involving soil disturbances of less than one (1) acre where the Department has determined that a SPDES permit is required for stormwater discharges based on the potential for contribution to a violation of a water quality standard or for significant contribution of pollutants to surface waters of the State. 3. Construction activities located in the watershed(s) identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. B. Effluent Limitations Applicable to Discharges from Construction Activities Discharges authorized by this permit must achieve, at a minimum, the effluent limitations in Part I.B.1. (a) – (f) of this permit. These limitations represent the degree of effluent reduction attainable by the application of best practicable technology currently available. 1. Erosion and Sediment Control Requirements -The owner or operator must select, design, install, implement and maintain control measures to minimize the discharge of pollutants and prevent a violation of the water quality standards. The selection, design, installation, implementation, and maintenance of these control measures must meet the non-numeric effluent limitations in Part I.B.1.(a) – (f) of this permit and be in accordance with the New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016, using sound engineering judgment. Where control measures are not designed in conformance with the design criteria included in the technical standard, the owner or operator must include in the Stormwater Pollution Prevention Plan (“SWPPP”) the reason(s) for the 1 (Part I.B.1) deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. a. Erosion and Sediment Controls. Design, install and maintain effective erosion and sediment controls to minimize the discharge of pollutants and prevent a violation of the water quality standards. At a minimum, such controls must be designed, installed and maintained to: (i) Minimize soil erosion through application of runoff control and soil stabilization control measure to minimize pollutant discharges; (ii) Control stormwater discharges, including both peak flowrates and total stormwater volume, to minimize channel and streambank erosion and scour in the immediate vicinity of the discharge points; (iii) Minimize the amount of soil exposed during construction activity; (iv) Minimize the disturbance of steep slopes; (v) Minimize sediment discharges from the site; (vi) Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas and maximize stormwater infiltration to reduce pollutant discharges, unless infeasible; (vii) Minimize soil compaction. Minimizing soil compaction is not required where the intended function of a specific area of the site dictates that it be compacted; (viii) Unless infeasible, preserve a sufficient amount of topsoil to complete soil restoration and establish a uniform, dense vegetative cover; and (ix) Minimize dust. On areas of exposed soil, minimize dust through the appropriate application of water or other dust suppression techniques to control the generation of pollutants that could be discharged from the site. b. Soil Stabilization. In areas where soil disturbance activity has temporarily or permanently ceased, the application of soil stabilization measures must be initiated by the end of the next business day and completed within fourteen (14) days from the date the current soil disturbance activity ceased. For construction sites that directly discharge to one of the 303(d) segments 2 (Part I.B.1.b) listed in Appendix E or is located in one of the watersheds listed in Appendix C, the application of soil stabilization measures must be initiated by the end of the next business day and completed within seven (7) days from the date the current soil disturbance activity ceased. See Appendix A for definition of Temporarily Ceased. c. Dewatering. Discharges from dewatering activities, including discharges from dewatering of trenches and excavations, must be managed by appropriate control measures. d. Pollution Prevention Measures. Design, install, implement, and maintain effective pollution prevention measures to minimize the discharge of pollutants and prevent a violation of the water quality standards. At a minimum, such measures must be designed, installed, implemented and maintained to: (i) Minimize the discharge of pollutants from equipment and vehicle washing, wheel wash water, and other wash waters. This applies to washing operations that use clean water only. Soaps, detergents and solvents cannot be used; (ii) Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, hazardous and toxic waste, and other materials present on the site to precipitation and to stormwater. Minimization of exposure is not required in cases where the exposure to precipitation and to stormwater will not result in a discharge of pollutants, or where exposure of a specific material or product poses little risk of stormwater contamination (such as final products and materials intended for outdoor use) ; and (iii) Prevent the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures. e. Prohibited Discharges. The following discharges are prohibited: (i) Wastewater from washout of concrete; (ii) Wastewater from washout and cleanout of stucco, paint, form release oils, curing compounds and other construction materials; 3 (Part I.B.1.e.iii) (iii) Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance; (iv) Soaps or solvents used in vehicle and equipment washing; and (v) Toxic or hazardous substances from a spill or other release. f. Surface Outlets. When discharging from basins and impoundments, the outlets shall be designed, constructed and maintained in such a manner that sediment does not leave the basin or impoundment and that erosion at or below the outlet does not occur. C. Post-construction Stormwater Management Practice Requirements 1. The owner or operator of a construction activity that requires post-construction stormwater management practices pursuant to Part III.C. of this permit must select, design, install, and maintain the practices to meet the performance criteria in the New York State Stormwater Management Design Manual (“Design Manual”), dated January 2015, using sound engineering judgment. Where post-construction stormwater management practices (“SMPs”) are not designed in conformance with the performance criteria in the Design Manual, the owner or operator must include in the SWPPP the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. 2. The owner or operator of a construction activity that requires post-construction stormwater management practices pursuant to Part III.C. of this permit must design the practices to meet the applicable sizing criteria in Part I.C.2.a., b., c. or d. of this permit. a. Sizing Criteria for New Development (i) Runoff Reduction Volume (“RRv”): Reduce the total Water Quality Volume (“WQv”) by application of RR techniques and standard SMPs with RRv capacity. The total WQv shall be calculated in accordance with the criteria in Section 4.2 of the Design Manual. (ii) Minimum RRv and Treatment of Remaining Total WQv: Construction activities that cannot meet the criteria in Part I.C.2.a.(i) of this permit due to site limitations shall direct runoff from all newly constructed impervious areas to a RR technique or standard SMP with RRv capacity unless infeasible. The specific site limitations that prevent the reduction of 100% of the WQv shall be documented in the SWPPP. 4 (Part I.C.2.a.ii) For each impervious area that is not directed to a RR technique or standard SMP with RRv capacity, the SWPPP must include documentation which demonstrates that all options were considered and for each option explains why it is considered infeasible. In no case shall the runoff reduction achieved from the newly constructed impervious areas be less than the Minimum RRv as calculated using the criteria in Section 4.3 of the Design Manual. The remaining portion of the total WQv that cannot be reduced shal l be treated by application of standard SMPs. (iii) Channel Protection Volume (“Cpv”): Provide 24 hour extended detention of the post-developed 1-year, 24-hour storm event; remaining after runoff reduction. The Cpv requirement does not apply when: (1) Reduction of the entire Cpv is achieved by application of runoff reduction techniques or infiltration systems, or (2) The site discharges directly to tidal waters, or fifth order or larger streams. (iv) Overbank Flood Control Criteria (“Qp”): Requires storage to attenuate the post-development 10-year, 24-hour peak discharge rate (Qp) to predevelopment rates. The Qp requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. (v) Extreme Flood Control Criteria (“Qf”): Requires storage to attenuate the post-development 100-year, 24-hour peak discharge rate (Qf) to predevelopment rates. The Qf requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. b. Sizing Criteria for New Development in Enhanced Phosphorus Removal Watershed (i) Runoff Reduction Volume (RRv): Reduce the total Water Quality Volume (WQv) by application of RR techniques and standard SMPs with RRv capacity. The total WQv is the runoff volume from the 1 -year, 24 hour design storm over the post-developed watershed and shall be 5 (Part I.C.2.b.i) calculated in accordance with the criteria in Section 10.3 of the Design Manual. (ii) Minimum RRv and Treatment of Remaining Total WQv: Construction activities that cannot meet the criteria in Part I.C.2.b.(i) of this permit due to site limitations shall direct runoff from all newly constructed impervious areas to a RR technique or standard SMP with RRv capacity unless infeasible. The specific site limitations that prevent the reduction of 100% of the WQv shall be documented in the SWPPP. For each impervious area that is not directed to a RR technique or standard SMP with RRv capacity, the SWPPP must include documentation which demonstrates that all options were considered and for each option explains why it is considered infeasible. In no case shall the runoff reduction achieved from the newly constructed impervious areas be less than the Minimum RRv as calculated using the criteria in Section 10.3 of the Design Manual. The remaining portion of the total WQv that cannot be reduced shall be treated by application of standard SMPs. (iii) Channel Protection Volume (Cpv): Provide 24 hour extended detention of the post-developed 1-year, 24-hour storm event; remaining after runoff reduction. The Cpv requirement does not apply when: (1) Reduction of the entire Cpv is achieved by application of runoff reduction techniques or infiltration systems, or (2) The site discharges directly to tidal waters, or fifth order or larger streams. (iv) Overbank Flood Control Criteria (Qp): Requires storage to attenuate the post-development 10-year, 24-hour peak discharge rate (Qp) to predevelopment rates. The Qp requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. (v) Extreme Flood Control Criteria (Qf): Requires storage to attenuate the post-development 100-year, 24-hour peak discharge rate (Qf) to predevelopment rates. The Qf requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. 6 (Part I.C.2.c) c. Sizing Criteria for Redevelopment Activity (i) Water Quality Volume (WQv): The WQv treatment objective for redevelopment activity shall be addressed by one of the following options. Redevelopment activities located in an Enhanced Phosphorus Removal Watershed (see Part III.B.3. and Appendix C of this permit) shall calculate the WQv in accordance with Section 10.3 of the Design Manual. All other redevelopment activities shall calculate the WQv in accordance with Section 4.2 of the Design Manual. (1) Reduce the existing impervious cover by a minimum of 25% of the total disturbed, impervious area. The Soil Restoration criteria in Section 5.1.6 of the Design Manual must be applied to all newly created pervious areas, or (2) Capture and treat a minimum of 25% of the WQv from the disturbed, impervious area by the application of standard SMPs; or reduce 25% of the WQv from the disturbed, impervious area by the application of RR techniques or standard SMPs with RRv capacity., or (3) Capture and treat a minimum of 75% of the WQv from the disturbed, impervious area as well as any additional runoff from tributary areas by application of the alternative practices discussed in Sections 9.3 and 9.4 of the Design Manual., or (4) Application of a combination of 1, 2 and 3 above that provide a weighted average of at least two of the above methods. Application of this method shall be in accordance with the criteria in Section 9.2.1(B) (IV) of the Design Manual. If there is an existing post-construction stormwater management practice located on the site that captures and treats runoff from the impervious area that is being disturbed, the WQv treatment option selected must, at a minimum, provide treatment equal to the treatment that was being provided by the existing practice(s) if that treatment is greater than the treatment required by options 1 – 4 above. (ii) Channel Protection Volume (Cpv): Not required if there are n o changes to hydrology that increase the discharge rate from the project site. (iii) Overbank Flood Control Criteria (Qp): Not required if there are no changes to hydrology that increase the discharge rate from the project site. (iv) Extreme Flood Control Criteria (Qf): Not required if there are no changes to hydrology that increase the discharge rate from the project site 7 (Part I.C.2.d) d. Sizing Criteria for Combination of Redevelopment Activity and New Development Construction projects that include both New Development and Redevelopment Activity shall provide post-construction stormwater management controls that meet the sizing criteria calculated as an aggregate of the Sizing Criteria in Part I.C.2.a. or b. of this permit for the New Development portion of the project and Part I.C.2.c of this permit for Redevelopment Activity portion of the project. D. Maintaining Water Quality The Department expects that compliance with the conditions of this permit will control discharges necessary to meet applicable water quality standards. It shall be a violation of the ECL for any discharge to either cause or contribute to a violation of water quality standards as contained in Parts 700 through 705 of Title 6 of the Official Comp ilation of Codes, Rules and Regulations of the State of New York, such as: 1. There shall be no increase in turbidity that will cause a substantial visible contrast to natural conditions; 2. There shall be no increase in suspended, colloidal or settleable solids that will cause deposition or impair the waters for their best usages; and 3. There shall be no residue from oil and floating substances, nor visible oil film, nor globules of grease. If there is evidence indicating that the stormwater discharges authorized by this permit are causing, have the reasonable potential to cause, or are contributing to a violation of the water quality standards; the owner or operator must take appropriate corrective action in accordance with Part IV.C.5. of this general permit and document in accordance with Part IV.C.4. of this general permit. To address the water quality standard violation the owner or operator may need to provide additional information, include and implement appropriate controls in the SWPPP to correct the problem, or obtain an individual SPDES permit. If there is evidence indicating that despite compliance with the terms and conditions of this general permit it is demonstrated that the stormwater discharges authorized by this permit are causing or contributing to a violation of water quality standards, or if the Department determines that a modification of the permit is necessary to prevent a violation of water quality standards, the authorized discharges will no longer be eligible for coverage under this permit. The Department may require the owner or operator to obtain an individual SPDES permit to continue discharging. 8 (Part I.E) E. Eligibility Under This General Permit 1. This permit may authorize all discharges of stormwater from construction activity to surface waters of the State and groundwaters except for ineligible discharges identified under subparagraph F. of this Part. 2. Except for non-stormwater discharges explicitly listed in the next paragraph, this permit only authorizes stormwater discharges; including stormwater runoff, snowmelt runoff, and surface runoff and drainage, from construction activities. 3. Notwithstanding paragraphs E.1 and E.2 above, the following non-stormwater discharges are authorized by this permit: those listed in 6 NYCRR 750- 1.2(a)(29)(vi), with the following exception: “Discharges from firefighting activities are authorized only when the firefighting activities are emergencies/unplanned”; waters to which other components have not been added that are used to control dust in accordance with the SWPPP ; and uncontaminated discharges from construction site de-watering operations. All non-stormwater discharges must be identified in the SWPPP. Under all circumstances, the owner or operator must still comply with water quality standards in Part I.D of this permit. 4. The owner or operator must maintain permit eligibility to discharge under this permit. Any discharges that are not compliant with the eligibility conditions of this permit are not authorized by the permit and the owner or operator must either apply for a separate permit to cover those ineligible discharges or take steps necessary to make the discharge eligible for coverage. F. Activities Which Are Ineligible for Coverage Under This General Permit All of the following are not authorized by this permit: 1. Discharges after construction activities have been completed and the site has undergone final stabilization; 2. Discharges that are mixed with sources of non-stormwater other than those expressly authorized under subsection E.3. of this Part and identified in the SWPPP required by this permit; 3. Discharges that are required to obtain an individual SPDES permit or another SPDES general permit pursuant to Part VII.K. of this permit; 4. Construction activities or discharges from construction activities that may adversely affect an endangered or threatened species unless the owner or 9 (Part I.F.4) operator has obtained a permit issued pursuant to 6 NYCRR Part 182 for the project or the Department has issued a letter of non -jurisdiction for the project. All documentation necessary to demonstrate eligibility shall be maintained on site in accordance with Part II.D.2 of this permit; 5. Discharges which either cause or contribute to a violation of water quality standards adopted pursuant to the ECL and its accompanying regulations; 6. Construction activities for residential, commercial and institutional projects: a. Where the discharges from the construction activities are tributary to waters of the state classified as AA or AA-s; and b. Which are undertaken on land with no existing impervious cover; and c. Which disturb one (1) or more acres of land designated on the current United States Department of Agriculture (“USDA”) Soil Survey as Soil Slope Phase “D”, (provided the map unit name is inclusive of slopes greater than 25%), or Soil Slope Phase “E” or “F” (regardless of the map unit name), or a combination of the three designations. 7. Construction activities for linear transportation projects and linear utility projects: a. Where the discharges from the construction activities are tributary to waters of the state classified as AA or AA-s; and b. Which are undertaken on land with no existing impervious cover; and c. Which disturb two (2) or more acres of land designated on the current USDA Soil Survey as Soil Slope Phase “D” (provided the map unit name is inclusive of slopes greater than 25%), or Soil Slope Phase “E” or “F” (regardless of the map unit name), or a combination of the three designations. 10 (Part I.F.8) 8. Construction activities that have the potential to affect an historic property, unless there is documentation that such impacts have been resolved. The following documentation necessary to demonstrate eligibility with this requirement shall be maintained on site in accordance with Part II.D.2 of this permit and made available to the Department in accordance with Part VII.F of this permit: a. Documentation that the construction activity is not within an archeologically sensitive area indicated on the sensitivity map, and that the construction activity is not located on or immediately adjacent to a property listed or determined to be eligible for listing on the National or State Registers of Historic Places, and that there is no new permanent building on the construction site within the following distances from a building, structure, or object that is more than 50 years old, or if there is such a new permanent building on the construction site within those parameters that NYS Office of Parks, Recreation and Historic Preservation (OPRHP), a Historic Preservation Commission of a Certified Local Government, or a qualified preservation professional has determined that the building, structure, or object more than 50 years old is not historically/archeologically significant. ▪1-5 acres of disturbance -20 feet ▪5-20 acres of disturbance -50 feet ▪20+ acres of disturbance -100 feet, or b. DEC consultation form sent to OPRHP, and copied to the NYS DEC Agency Historic Preservation Officer (APO), and (i) the State Environmental Quality Review (SEQR) Environmental Assessment Form (EAF) with a negative declaration or the Findings Statement, with documentation of OPRHP’s agreement with the resolution; or (ii) documentation from OPRHP that the construction activity will result in No Impact; or (iii) documentation from OPRHP providing a determination of No Adverse Impact; or (iv) a Letter of Resolution signed by the owner/operator, OPRHP and the DEC APO which allows for this construction activity to be eligible for coverage under the general permit in terms of the State Historic Preservation Act (SHPA); or c. Documentation of satisfactory compliance with Section 106 of the National Historic Preservation Act for a coterminous project area: 11 (Part I.F.8.c) (i) No Affect (ii) No Adverse Affect (iii) Executed Memorandum of Agreement, or d. Documentation that: (i) SHPA Section 14.09 has been completed by NYS DEC or another state agency. 9. Discharges from construction activities that are subject to an existing SPDES individual or general permit where a SPDES permit for construction activity has been terminated or denied; or where the owner or operator has failed to renew an expired individual permit. Part II. PERMIT COVERAGE A. How to Obtain Coverage 1. An owner or operator of a construction activity that is not subject to the requirements of a regulated, traditional land use control MS4 must first prepare a SWPPP in accordance with all applicable requirements of this permit and then submit a completed Notice of Intent (NOI) to the Department to be authorized to discharge under this permit. 2. An owner or operator of a construction activity that is subject to the requirements of a regulated, traditional land use control MS4 must first prepare a SWPPP in accordance with all applicable requirements of this permit and then have the SWPPP reviewed and accepted by the regulated, traditional land use control MS4 prior to submitting the NOI to the Department. The owner or operator shall have the “MS4 SWPPP Acceptance” form signed in accordance with Part VII.H., and then submit that form along with a completed NOI to the Department. 3. The requirement for an owner or operator to have its SWPPP reviewed and accepted by the regulated, traditional land use control MS4 prior to submitting the NOI to the Department does not apply to an owner or operator that is obtaining permit coverage in accordance with the requirements in Part II.F. (Change of Owner or Operator) or where the owner or operator of the construction activity is the regulated, traditional land use control MS4 . This exemption does not apply to construction activities subject to the New York City Administrative Code. 12 (Part II.B) B. Notice of Intent (NOI) Submittal 1. Prior to December 21, 2020, an owner or operator shall use either the electronic (eNOI) or paper version of the NOI that the Department prepared. Both versions of the NOI are located on the Department’s website (http://www.dec.ny.gov/ ). The paper version of the NOI shall be signed in accordance with Part VII.H. of this permit and submitted to the following address: NOTICE OF INTENT NYS DEC, Bureau of Water Permits 625 Broadway, 4th Floor Albany, New York 12233-3505 2. Beginning December 21, 2020 and in accordance with EPA’s 2015 NPDES Electronic Reporting Rule (40 CFR Part 127), the owner or operator must submit the NOI electronically using the Department’s online NOI. 3. The owner or operator shall have the SWPPP preparer sign the “SWPPP Preparer Certification” statement on the NOI prior to submitting the form to the Department. 4. As of the date the NOI is submitted to the Department, the owner or operator shall make the NOI and SWPPP available for review and copying in accordance with the requirements in Part VII.F. of this permit. C. Permit Authorization 1. An owner or operator shall not commence construction activity until their authorization to discharge under this permit goes into effect. 2. Authorization to discharge under this permit will be effective when the owner or operator has satisfied all of the following criteria: a. project review pursuant to the State Environmental Quality Review Act (“SEQRA”) have been satisfied, when SEQRA is applicable. See the Department’s website (http://www.dec.ny.gov/) for more information, b. where required, all necessary Department permits subject to the Uniform Procedures Act (“UPA”) (see 6 NYCRR Part 621), or the equivalent from another New York State agency, have been obtained, unless otherwise notified by the Department pursuant to 6 NYCRR 621.3(a)(4). Owners or operators of construction activities that are required to obtain UPA permits 13 (Part II.C.2.b) must submit a preliminary SWPPP to the appropriate DEC Permit Administrator at the Regional Office listed in Appendix F at the time all other necessary UPA permit applications are submitted. The preliminary SWPPP must include sufficient information to demonstrate that the construction activity qualifies for authorization under this permit, c. the final SWPPP has been prepared, and d. a complete NOI has been submitted to the Department in accordance with the requirements of this permit. 3. An owner or operator that has satisfied the requirements of Part II.C.2 above will be authorized to discharge stormwater from their construction activity in accordance with the following schedule: a. For construction activities that are not subject to the requirements of a regulated, traditional land use control MS4: (i) Five (5) business days from the date the Department receives a complete electronic version of the NOI (eNOI) for construction activities with a SWPPP that has been prepared in conformance with the design criteria in the technical standard referenced in Part III.B.1 and the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, for construction activities that require post-construction stormwater management practices pursuant to Part III.C.; or (ii) Sixty (60) business days from the date the Department receives a complete NOI (electronic or paper version) for construction activities with a SWPPP that has not been prepared in conformance with the design criteria in technical standard referenced in Part III.B.1. or, for construction activities that require post-construction stormwater management practices pursuant to Part III.C., the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, or; (iii) Ten (10) business days from the date the Department receives a complete paper version of the NOI for construction activities with a SWPPP that has been prepared in conformance with the design criteria in the technical standard referenced in Part III.B.1 and the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, for construction activities that require post-construction stormwater management practices pursuant to Part III.C. 14 (Part II.C.3.b) b. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4: (i) Five (5) business days from the date the Department receives both a complete electronic version of the NOI (eNOI) and signed “MS4 SWPPP Acceptance” form, or (ii) Ten (10) business days from the date the Department receives both a complete paper version of the NOI and signed “MS4 SWPPP Acceptance” form. 4. Coverage under this permit authorizes stormwater discharges from only those areas of disturbance that are identified in the NOI. If an owner or operator wishes to have stormwater discharges from future or additional areas of disturbance authorized, they must submit a new NOI that addresses that phase of the development, unless otherwise notified by the Department. The owner or operator shall not commence construction activity on the future or additional areas until their authorization to discharge under this permit goes into effect in accordance with Part II.C. of this permit. D. General Requirements For Owners or Operators With Permit Coverage 1. The owner or operator shall ensure that the provisions of the SWPPP are implemented from the commencement of construction activity until all areas of disturbance have achieved final stabilization and the Notice of Termination (“NOT”) has been submitted to the Department in accordance with Part V. of this permit. This includes any changes made to the SWPPP pursuant to Part III.A.4. of this permit. 2. The owner or operator shall maintain a copy of the General Permit (GP-0-20- 001), NOI, NOI Acknowledgment Letter, SWPPP, MS4 SWPPP Acceptance form, inspection reports, responsible contractor’s or subcontractor’s certification statement (see Part III.A.6.), and all documentation necessary to demonstrate eligibility with this permit at the construction site until all disturbed areas have achieved final stabilization and the NOT has been submitted to the Department. The documents must be maintained in a secure location, such as a job trailer, on-site construction office, or mailbox with lock. The secure location must be accessible during normal business hours to an individual performing a compliance inspection. 3. The owner or operator of a construction activity shall not disturb greater than five (5) acres of soil at any one time without prior written authorization from the Department or, in areas under the jurisdiction of a regulated, traditional land 15 (Part II.D.3) use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity). At a minimum, the owner or operator must comply with the following requirements in order to be authorized to disturb greater than fi ve (5) acres of soil at any one time: a. The owner or operator shall have a qualified inspector conduct at least two (2) site inspections in accordance with Part IV.C. of this permit every seven (7) calendar days, for as long as greater than five (5) acres of soil remain disturbed. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. b. In areas where soil disturbance activity has temporarily or permanently ceased, the application of soil stabilization measures must be initiated by the end of the next business day and completed within seven (7) days from the date the current soil disturbance activity ceased. The soil stabilization measures selected shall be in conformance with the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016. c. The owner or operator shall prepare a phasing plan that defines maximum disturbed area per phase and shows required cuts and fills. d. The owner or operator shall install any additional site-specific practices needed to protect water quality. e. The owner or operator shall include the requirements above in their SWPPP. 4. In accordance with statute, regulations, and the terms and conditions of this permit, the Department may suspend or revoke an owner’s or operator’s coverage under this permit at any time if the Department determines that the SWPPP does not meet the permit requirements or consistent with Part VII.K.. 5. Upon a finding of significant non-compliance with the practices described in the SWPPP or violation of this permit, the Department may order an immediate stop to all activity at the site until the non-compliance is remedied. The stop work order shall be in writing, describe the non-compliance in detail, and be sent to the owner or operator. 6. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4, the owner or operator shall notify the 16 (Part II.D.6) regulated, traditional land use control MS4 in writing of any planned amendments or modifications to the post-construction stormwater management practice component of the SWPPP required by Part III.A. 4. and 5. of this permit. Unless otherwise notified by the regulated, traditional land use control MS4, the owner or operator shall have the SWPPP amendments or modifications reviewed and accepted by the regulated, traditional land use control MS4 prior to commencing construction of the post-construction stormwater management practice. E. Permit Coverage for Discharges Authorized Under GP-0-15-002 1. Upon renewal of SPDES General Permit for Stormwater Discharges from Construction Activity (Permit No. GP-0-15-002), an owner or operator of a construction activity with coverage under GP-0-15-002, as of the effective date of GP-0-20-001, shall be authorized to discharge in accordance with GP-0-20- 001, unless otherwise notified by the Department. An owner or operator may continue to implement the technical/design components of the post-construction stormwater management controls provided that such design was done in conformance with the technical standards in place at the time of initial project authorization. However, they must comply with the other, non-design provisions of GP-0-20-001. F. Change of Owner or Operator 1. When property ownership changes or when there is a change in operational control over the construction plans and specifications, the original owner or operator must notify the new owner or operator, in writing, of the requirement to obtain permit coverage by submitting a NOI with the Department. For construction activities subject to the requirements of a regulated, traditional land use control MS4, the original owner or operator must also notify the MS4, in writing, of the change in ownership at least 30 calendar days prior to the change in ownership. 2. Once the new owner or operator obtains permit coverage, the original owner or operator shall then submit a completed NOT with the name and permit identification number of the new owner or operator to the Department at the address in Part II.B.1. of this permit. If the original owner or operator maintains ownership of a portion of the construction activity and will disturb soil, they must maintain their coverage under the permit. 3. Permit coverage for the new owner or operator will be effective as of the date the Department receives a complete NOI, provided the original owner or 17 (Part II.F.3) operator was not subject to a sixty (60) business day authorization period that has not expired as of the date the Department receives the NOI from the new owner or operator. Part III. STORMWATER POLLUTION PREVENTION PLAN (SWPPP) A. General SWPPP Requirements 1. A SWPPP shall be prepared and implemented by the owner or operator of each construction activity covered by this permit. The SWPPP must document the selection, design, installation, implementation and maintenance of the control measures and practices that will be used to meet the effluent limitations in Part I.B. of this permit and where applicable, the post-construction stormwater management practice requirements in Part I.C. of this permit. The SWPPP shall be prepared prior to the submittal of the NOI. The NOI shall be submitted to the Department prior to the commencement of construction activity. A copy of the completed, final NOI shall be included in the SWPPP. 2. The SWPPP shall describe the erosion and sediment control practices and where required, post-construction stormwater management practices that will be used and/or constructed to reduce the pollutants in stormwater discharges and to assure compliance with the terms and conditions of this permit. In addition, the SWPPP shall identify potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges. 3. All SWPPPs that require the post-construction stormwater management practice component shall be prepared by a qualified professional that is knowledgeable in the principles and practices of stormwater management and treatment. 4. The owner or operator must keep the SWPPP current so that it at all times accurately documents the erosion and sediment controls practices that are being used or will be used during construction, and all post-construction stormwater management practices that will be constructed on the site. At a minimum, the owner or operator shall amend the SWPPP, including construction drawings: a. whenever the current provisions prove to be ineffective in minimizing pollutants in stormwater discharges from the site; 18 (Part III.A.4.b) b. whenever there is a change in design, construction, or operation at the construction site that has or could have an effect on the discharge of pollutants; c. to address issues or deficiencies identified during an inspection by the qualified inspector, the Department or other regulatory authority; and d. to document the final construction conditions. 5. The Department may notify the owner or operator at any time that the SWPPP does not meet one or more of the minimum requirements of this permit. The notification shall be in writing and identify the provisions of the SWPPP that require modification. Within fourteen (14) calendar days of such notificati on, or as otherwise indicated by the Department, the owner or operator shall make the required changes to the SWPPP and submit written notification to the Department that the changes have been made. If the owner or operator does not respond to the Department’s comments in the specified time frame, the Department may suspend the owner’s or operator’s coverage under this permit or require the owner or operator to obtain coverage under an individual SPDES permit in accordance with Part II.D.4. of this permit. 6. Prior to the commencement of construction activity, the owner or operator must identify the contractor(s) and subcontractor(s) that will be responsible for installing, constructing, repairing, replacing, inspecting and maintaining the erosion and sediment control practices included in the SWPPP; and the contractor(s) and subcontractor(s) that will be responsible for constructing the post-construction stormwater management practices included in the SWPPP. The owner or operator shall have each of the contractors and subcontractors identify at least one person from their company that will be responsible for implementation of the SWPPP. This person shall be known as the trained contractor. The owner or operator shall ensure that at least one trained contractor is on site on a daily basis when soil disturbance activities are being performed. The owner or operator shall have each of the contractors and subcontractors identified above sign a copy of the following certification statement below before they commence any construction activity: "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 19 (Part III.A.6) 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" In addition to providing the certification statement above, the certification page must also identify the specific elements of the SWPPP that each contractor and subcontractor will be responsible for and include the name and title of the person providing the signature; the name and title of the trained contractor responsible for SWPPP implementation; the name, address and telephone number of the contracting firm; the address (or other identifying description) of the site; and the date the certification statement is signed. The owner or operator shall attach the certification statement(s) to the copy of the SWPPP that is maintained at the construction site. If new or additional contractors are hired to implement measures identified in the SWPPP after construction has commenced, they must also sign the certification statement and provide the information listed above. 7. For projects where the Department requests a copy of the SWPPP or inspection reports, the owner or operator shall submit the documents in both electronic (PDF only) and paper format within five (5) business days, unless otherwise notified by the Department. B. Required SWPPP Contents 1. Erosion and sediment control component -All SWPPPs prepared pursuant to this permit shall include erosion and sediment control practices designed in conformance with the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016. Where erosion and sediment control practices are not designed in conformance with the design criteria included in the technical standard, the owner or operator must demonstrate equivalence to the technical standard. At a minimum, the erosion and sediment control component of the SWPPP shall include the following: a. Background information about the scope of the project, including the location, type and size of project 20 (Part III.B.1.b) b. A site map/construction drawing(s) for the project, including a general location map. At a minimum, the site map shall show the total site area; all improvements; areas of disturbance; areas that will not be disturbed; existing vegetation; on-site and adjacent off-site surface water(s); floodplain/floodway boundaries; wetlands and drainage patterns that could be affected by the construction activity; existing and final contours ; locations of different soil types with boundaries; material, waste, borrow or equipment storage areas located on adjacent properties; and location(s) of the stormwater discharge(s); c. A description of the soil(s) present at the site, including an identification of the Hydrologic Soil Group (HSG); d. A construction phasing plan and sequence of operations describing the intended order of construction activities, including clearing and grubbing, excavation and grading, utility and infrastructure installation and any other activity at the site that results in soil disturbance; e. A description of the minimum erosion and sediment control practices to be installed or implemented for each construction activity that will result in soil disturbance. Include a schedule that identifies the timing of initial placement or implementation of each erosion and sediment control practice and the minimum time frames that each practice should remain in place or be implemented; f. A temporary and permanent soil stabilization plan that meets the requirements of this general permit and the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016, for each stage of the project, including initial land clearing and grubbing to project completion and achievement of final stabilization; g. A site map/construction drawing(s) showing the specific location(s), size(s), and length(s) of each erosion and sediment control practice; h. The dimensions, material specifications, installation details, and operation and maintenance requirements for all erosion and sediment control practices. Include the location and sizing of any temporary sediment basins and structural practices that will be used to divert flows from exposed soils; i. A maintenance inspection schedule for the contractor(s) identified in Part III.A.6. of this permit, to ensure continuous and effective operation of the erosion and sediment control practices. The maintenance inspection 21 (Part III.B.1.i) schedule shall be in accordance with the requirements in the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016; j. A description of the pollution prevention measures that will be used to control litter, construction chemicals and construction debris from becoming a pollutant source in the stormwater discharges; k. A description and location of any stormwater discharges associated with industrial activity other than construction at the site, including, but not limited to, stormwater discharges from asphalt plants and concrete plants located on the construction site; and l. Identification of any elements of the design that are not in conformance with the design criteria in the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016. Include the reason for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. 2. Post-construction stormwater management practice component – The owner or operator of any construction project identified in Table 2 of Appendix B as needing post-construction stormwater management practices shall prepare a SWPPP that includes practices designed in conformance with the applicable sizing criteria in Part I.C.2.a., c. or d. of this permit and the performance criteria in the technical standard, New York State Stormwater Management Design Manual dated January 2015 Where post-construction stormwater management practices are not designed in conformance with the performance criteria in the technical standard, the owner or operator must include in the SWPPP the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. The post-construction stormwater management practice component of the SWPPP shall include the following: a. Identification of all post-construction stormwater management practices to be constructed as part of the project. Include the dimensions, material specifications and installation details for each post-construction stormwater management practice; 22 (Part III.B.2.b) b. A site map/construction drawing(s) showing the specific location and size of each post-construction stormwater management practice; c. A Stormwater Modeling and Analysis Report that includes: (i) Map(s) showing pre-development conditions, including watershed/subcatchments boundaries, flow paths/routing, and design points; (ii) Map(s) showing post-development conditions, including watershed/subcatchments boundaries, flow paths/routing, design points and post-construction stormwater management practices; (iii) Results of stormwater modeling (i.e. hydrology and hydraulic analysis) for the required storm events. Include supporting calculations (model runs), methodology, and a summary table that compares pre and post - development runoff rates and volumes for the different storm events; (iv) Summary table, with supporting calculations, which demonstrates that each post-construction stormwater management practice has been designed in conformance with the sizing criteria included in the Design Manual; (v) Identification of any sizing criteria that is not required based on the requirements included in Part I.C. of this permit; and (vi) Identification of any elements of the design that are not in conformance with the performance criteria in the Design Manual. Include the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alt ernative design is equivalent to the Design Manual; d. Soil testing results and locations (test pits, borings); e. Infiltration test results, when required; and f. An operations and maintenance plan that includes inspection and maintenance schedules and actions to ensure continuous and effective operation of each post-construction stormwater management practice. The plan shall identify the entity that will be responsible for the long term operation and maintenance of each practice. 23 (Part III.B.3) 3. Enhanced Phosphorus Removal Standards -All construction projects identified in Table 2 of Appendix B that are located in the watersheds identified in Appendix C shall prepare a SWPPP that includes post -construction stormwater management practices designed in conformance with the applicable sizing criteria in Part I.C.2. b., c. or d. of this permit and the performance criteria, Enhanced Phosphorus Removal Standards included in the Design Manual. At a minimum, the post-construction stormwater management practice component of the SWPPP shall include items 2.a -2.f. above. C. Required SWPPP Components by Project Type Unless otherwise notified by the Department, owners or operators of construction activities identified in Table 1 of Appendix B are required to prepare a SWPPP that only includes erosion and sediment control practices designed in conformance with Part III.B.1 of this permit. Owners or operators of the construction activities identified in Table 2 of Appendix B shall prepare a SWPPP that also includes post-construction stormwater management practices designed in conformance with Part III.B.2 or 3 of this permit. Part IV. INSPECTION AND MAINTENANCE REQUIREMENTS A. General Construction Site Inspection and Maintenance Requirements 1. The owner or operator must ensure that all erosion and sediment control practices (including pollution prevention measures) and all post-construction stormwater management practices identified in the SWPPP are inspected and maintained in accordance with Part IV.B. and C. of this permit. 2. The terms of this permit shall not be construed to prohibit the State of New York from exercising any authority pursuant to the ECL, common law or federal law, or prohibit New York State from taking any measures, whether civil or criminal, to prevent violations of the laws of the State of New York or protect the public health and safety and/or the environment. B. Contractor Maintenance Inspection Requirements 1. The owner or operator of each construction activity identified in Tables 1 and 2 of Appendix B shall have a trained contractor inspect the erosion and sediment control practices and pollution prevention measures being implemented within the active work area daily to ensure that they are being maintained in effective operating condition at all times. If deficiencies are identified, the contractor shall 24 (Part IV.B.1) begin implementing corrective actions within one business day and shall complete the corrective actions in a reasonable time frame. 2. For construction sites where soil disturbance activities have been temporarily suspended (e.g. winter shutdown) and temporary stabilization measures have been applied to all disturbed areas, the trained contractor can stop conducting the maintenance inspections. The trained contractor shall begin conducting the maintenance inspections in accordance with Part IV.B.1. of this permit as soon as soil disturbance activities resume. 3. For construction sites where soil disturbance activities have been shut down with partial project completion, the trained contractor can stop conducting the maintenance inspections if all areas disturbed as of the project shutdown date have achieved final stabilization and all post-construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational. C. Qualified Inspector Inspection Requirements The owner or operator shall have a qualified inspector conduct site inspections in conformance with the following requirements: [Note: The trained contractor identified in Part III.A.6. and IV.B. of this permit cannot conduct the qualified inspector site inspections unless they meet the qualified inspector qualifications included in Appendix A. In order to perform these inspections, the trained contractor would have to be a: ▪licensed Professional Engineer, ▪Certified Professional in Erosion and Sediment Control (CPESC), ▪New York State Erosion and Sediment Control Certificate Program holder ▪Registered Landscape Architect, or ▪someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity]. 1. A qualified inspector shall conduct site inspections for all construction activities identified in Tables 1 and 2 of Appendix B, with the exception of: a. the construction of a single family residential subdivision with 25% or less impervious cover at total site build-out that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres and is not located 25 (Part IV.C.1.a) in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E; b. the construction of a single family home that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres and is not located in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E; c. construction on agricultural property that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres; and d. construction activities located in the watersheds identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. 2. Unless otherwise notified by the Department, the qualified inspector shall conduct site inspections in accordance with the following timetable: a. For construction sites where soil disturbance activities are on-going, the qualified inspector shall conduct a site inspection at least once every seven (7) calendar days. b. For construction sites where soil disturbance activities are on-going and the owner or operator has received authorization in accordance with Part II.D.3 to disturb greater than five (5) acres of soil at any one time, the qualified inspector shall conduct at least two (2) site inspections every seven (7) calendar days. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. c. For construction sites where soil disturbance activities have been temporarily suspended (e.g. winter shutdown) and temporary stabilization measures have been applied to all disturbed areas, the qualified inspector shall conduct a site inspection at least once every thirty (30) calendar days. The owner or operator shall notify the DOW Water (SPDES) Program contact at the Regional Office (see contact information in Appendix F) or, in areas under the jurisdiction of a regulated, traditional land use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity) in writing prior to reducing the frequency of inspections. 26 (Part IV.C.2.d) d. For construction sites where soil disturbance activities have been shut down with partial project completion, the qualified inspector can stop conducting inspections if all areas disturbed as of the project shutdown date have achieved final stabilization and all post-construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational. The owner or operator shall notify the DOW Water (SPDES) Program contact at the Regional Office (see contact information in Appendix F) or, in areas under the jurisdiction of a regulated, traditional land use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity) in writing prior to the shutdown. If soil disturbance activities are not resumed within 2 years from the date of shutdown, the owner or operator shall have the qualified inspector perform a final inspection and certify that all disturbed areas have achieved final stabilization, and all temporary, structural erosion and sediment control measures have been removed; and that all post-construction stormwater management practices have been constructed in conformance with the SWPPP by signing the “Final Stabilization” and “Post-Construction Stormwater Management Practice” certification statements on the NOT. The owner or operator shall then submit the completed NOT form to the address in Part II.B.1 of this permit. e. For construction sites that directly discharge to one of the 303(d) segments listed in Appendix E or is located in one of the watersheds listed in Appendix C, the qualified inspector shall conduct at least two (2) site inspections every seven (7) calendar days. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. 3. At a minimum, the qualified inspector shall inspect all erosion and sediment control practices and pollution prevention measures to ensure integrity and effectiveness, all post-construction stormwater management practices under construction to ensure that they are constructed in conformance with the SWPPP, all areas of disturbance that have not achieved final stabilization, all points of discharge to natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction site, and all points of discharge from the construction site. 4. The qualified inspector shall prepare an inspection report subsequent to each and every inspection. At a minimum, the inspection report shall includ e and/or address the following: 27 (Part IV.C.4.a) a. Date and time of inspection; b. Name and title of person(s) performing inspection; c. A description of the weather and soil conditions (e.g. dry, wet, saturated) at the time of the inspection; d. A description of the condition of the runoff at all points of discharge from the construction site. This shall include identification of any discharges of sediment from the construction site. Include discharges from conveyance systems (i.e. pipes, culverts, ditches, etc.) and overland flow; e. A description of the condition of all natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction site which receive runoff from disturbed areas. This shall include identification of any discharges of sediment to the surface waterbody; f. Identification of all erosion and sediment control practices and pollution prevention measures that need repair or maintenance; g. Identification of all erosion and sediment control practices and pollution prevention measures that were not installed properly or are not functioning as designed and need to be reinstalled or replaced; h. Description and sketch of areas with active soil disturbance activity, areas that have been disturbed but are inactive at the time of the inspection, and areas that have been stabilized (temporary and/or final) since the last inspection; i. Current phase of construction of all post-construction stormwater management practices and identification of all construction that is not in conformance with the SWPPP and technical standards; j. Corrective action(s) that must be taken to install, repair, replace or maintain erosion and sediment control practices and pollution prevention measures; and to correct deficiencies identified with the construction of the post- construction stormwater management practice(s); k. Identification and status of all corrective actions that were required by previous inspection; and 28 (Part IV.C.4.l) l. Digital photographs, with date stamp, that clearly show the condition of all practices that have been identified as needing corrective actions. The qualified inspector shall attach paper color copies of the digital photographs to the inspection report being maintained onsite within seven (7) calendar days of the date of the inspection. The qualified inspector shall also take digital photographs, with date stamp, that clearly show the condition of the practice(s) after the corrective action has been completed. The qualified inspector shall attach paper color copies of the digital photographs to the inspection report that documents the completion of the corrective action work within seven (7) calendar days of that inspection. 5. Within one business day of the completion of an inspection, the qualified inspector shall notify the owner or operator and appropriate contractor or subcontractor identified in Part III.A.6. of this permit of any corrective actions that need to be taken. The contractor or subcontractor shall begin implementing the corrective actions within one business day of this notification and shall complete the corrective actions in a reasonable time frame. 6. All inspection reports shall be signed by the qualified inspector. Pursuant to Part II.D.2. of this permit, the inspection reports shall be maintained on site with the SWPPP. Part V. TERMINATION OF PERMIT COVERAGE A. Termination of Permit Coverage 1. An owner or operator that is eligible to terminate coverage under this permit must submit a completed NOT form to the address in Part II.B.1 of this permit. The NOT form shall be one which is associated with this permit, signed in accordance with Part VII.H of this permit. 2. An owner or operator may terminate coverage when one or more the following conditions have been met: a. Total project completion -All construction activity identified in the SWPPP has been completed; and all areas of disturbance have achieved final stabilization; and all temporary, structural erosion and sediment control measures have been removed; and all post-construction stormwater management practices have been constructed in conformance with the SWPPP and are operational; 29 (Part V.A.2.b) b. Planned shutdown with partial project completion -All soil disturbance activities have ceased; and all areas disturbed as of the project shutdown date have achieved final stabilization; and all temporary, structural erosion and sediment control measures have been removed; and all post- construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational; c. A new owner or operator has obtained coverage under this permit in accordance with Part II.F. of this permit. d. The owner or operator obtains coverage under an alternative SPDES general permit or an individual SPDES permit. 3. For construction activities meeting subdivision 2a. or 2b. of this Part, the owner or operator shall have the qualified inspector perform a final site inspection prior to submitting the NOT. The qualified inspector shall, by signing the “Final Stabilization” and “Post-Construction Stormwater Management Practice certification statements on the NOT, certify that all the requirements in Part V.A.2.a. or b. of this permit have been achieved. 4. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4 and meet subdivision 2a. or 2b. of this Part, the owner or operator shall have the regulated, traditional land use control MS4 sign the “MS4 Acceptance” statement on the NOT in accordance with the requirements in Part VII.H. of this permit. The regulated, traditional land use control MS4 official, by signing this statement, has determined that it is acceptable for the owner or operator to submit the NOT in accordance with the requirements of this Part. The regulated, traditional land use control MS4 can make this determination by performing a final site inspection themselves or by accepting the qualified inspector’s final site inspection certification(s) required in Part V.A.3. of this permit. 5. For construction activities that require post-construction stormwater management practices and meet subdivision 2a. of this Part, the owner or operator must, prior to submitting the NOT, ensure one of the following: a. the post-construction stormwater management practice(s) and any right-of- way(s) needed to maintain such practice(s) have been deeded to the municipality in which the practice(s) is located, 30 (Part V.A.5.b) b. an executed maintenance agreement is in place with the municipality that will maintain the post-construction stormwater management practice(s), c. for post-construction stormwater management practices that are privately owned, the owner or operator has a mechanism in place that requires operation and maintenance of the practice(s) in accordance with the operation and maintenance plan, such as a deed covenant in the owner or operator’s deed of record, d. for post-construction stormwater management practices that are owned by a public or private institution (e.g. school, university, hospital), government agency or authority, or public utility; the owner or operator has policy and procedures in place that ensures operation and maintenance of the practices in accordance with the operation and maintenance plan. Part VI. REPORTING AND RETENTION RECORDS A. Record Retention The owner or operator shall retain a copy of the NOI, NOI Acknowledgment Letter, SWPPP, MS4 SWPPP Acceptance form and any inspection reports that were prepared in conjunction with this permit for a period of at least five (5) years from the date that the Department receives a complete NOT sub mitted in accordance with Part V. of this general permit. B. Addresses With the exception of the NOI, NOT, and MS4 SWPPP Acceptance form (which must be submitted to the address referenced in Part II.B.1 of this permit), all written correspondence requested by the Department, including individual permit applications, shall be sent to the address of the appropriate DOW Water (SPDES) Program contact at the Regional Office listed in Appendix F. Part VII. STANDARD PERMIT CONDITIONS A. Duty to Comply The owner or operator must comply with all conditions of this permit. All contractors and subcontractors associated with the project must comply with the terms of the SWPPP. Any non-compliance with this permit constitutes a violation of the Clean Water 31 (Part VII.A) Act (CWA) and the ECL and is grounds for an enforcement action against the owner or operator and/or the contractor/subcontractor; permit revocation, suspension or modification; or denial of a permit renewal application. Upon a finding of significant non - compliance with this permit or the applicable SWPPP, the Department may order an immediate stop to all construction activity at the site until the non-compliance is remedied. The stop work order shall be in writing, shall describe the non -compliance in detail, and shall be sent to the owner or operator. If any human remains or archaeological remains are encountered during excavation, the owner or operator must immediately cease, or cause to cease, all construction activity in the area of the remains and notify the appropriate Reg ional Water Engineer (RWE). Construction activity shall not resume until written permission to do so has been received from the RWE. B. Continuation of the Expired General Permit This permit expires five (5) years from the effective date. If a new general permit is not issued prior to the expiration of this general permit, an owner or operator with coverage under this permit may continue to operate and discharge in accordance with the terms and conditions of this general permit, if it is extended pursuant to the State Administrative Procedure Act and 6 NYCRR Part 621, until a new general permit is issued. C. Enforcement Failure of the owner or operator, its contractors, subcontractors, agents and/or assigns to strictly adhere to any of the permit requirements contained herein shall constitute a violation of this permit. There are substantial criminal, civil, and administrative penalties associated with violating the provisions of this permit. Fines of up to $37,500 per day for each violation and imprisonment for up to fifteen (15) years may be assessed depending upon the nature and degree of the offense. D. Need to Halt or Reduce Activity Not a Defense It shall not be a defense for an owner or operator in an enforcement action that it would have been necessary to halt or reduce the construction activity in order to maintain compliance with the conditions of this permit. 32 (Part VII.E) E. Duty to Mitigate The owner or operator and its contractors and subcontractors shall take all reasonable steps to minimize or prevent any discharge in violation of this permit which has a reasonable likelihood of adversely affecting human health or the environment. F. Duty to Provide Information The owner or operator shall furnish to the Department, within a reasonable specified time period of a written request, all documentation necessary to demonstrate eligibility and any information to determine compliance with this permit or to determine whether cause exists for modifying or revoking this permit, or suspending or denying coverage under this permit, in accordance with the terms and conditions of this permit. The NOI, SWPPP and inspection reports required by this permit are public documents that the owner or operator must make available for review and copying by any person within five (5) business days of the owner or operator receiving a written request by any such person to review these documents. Copying of documents will be done at the requester’s expense. G. Other Information When the owner or operator becomes aware that they failed to submit any relevant facts, or submitted incorrect information in the NOI or in any of the documents required by this permit , or have made substantive revisions to the SWPPP (e.g. th e scope of the project changes significantly, the type of post-construction stormwater management practice(s) changes, there is a reduction in the sizing of the post-construction stormwater management practice, or there is an increase in the disturbance ar ea or impervious area), which were not reflected in the original NOI submitted to the Department, they shall promptly submit such facts or information to the Department using the contact information in Part II.A. of this permit. Failure of the owner or operator to correct or supplement any relevant facts within five (5) business days of becoming aware of the deficiency shall constitute a violation of this permit. H. Signatory Requirements 1. All NOIs and NOTs shall be signed as follows: a. For a corporation these forms shall be signed by a responsible corporate officer. For the purpose of this section, a responsible corporate officer means: 33 (Part VII.H.1.a) (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision-making functions for the corporation; or (ii) the manager of one or more manufacturing, production or operating facilities, provided the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; b. For a partnership or sole proprietorship these forms shall be signed by a general partner or the proprietor, respectively; or c. For a municipality, State, Federal, or other public agency these forms shall be signed by either a principal executive officer or ranking elected official. For purposes of this section, a principal executive officer of a Federal agency includes: (i) the chief executive officer of the agency, or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g., Regional Administrators of EPA). 2. The SWPPP and other information requested by the Department shall be signed by a person described in Part VII.H.1. of this permit or by a duly authorized representative of that person. A person is a duly authorized representative only if: a. The authorization is made in writing by a person described in Part VII.H.1. of this permit; b. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator of a well or a well field, 34 (Part VII.H.2.b) superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position) and, c. The written authorization shall include the name, title and signature of the authorized representative and be attached to the SWPPP. 3. All inspection reports shall be signed by the qualified inspector that performs the inspection. 4. The MS4 SWPPP Acceptance form shall be signed by the principal executive officer or ranking elected official from the regulated, traditional land use control MS4, or by a duly authorized representative of that person. It shall constitute a permit violation if an incorrect and/or improper signatory authorizes any required forms, SWPPP and/or inspection reports. I. Property Rights The issuance of this permit does not convey any property rights of any sort, nor any exclusive privileges, nor does it authorize any injury to private property nor any invasion of personal rights, nor any infringement of Federal, State or local laws or reg ulations. Owners or operators must obtain any applicable conveyances, easements, licenses and/or access to real property prior to commencing construction activity. J. Severability The provisions of this permit are severable, and if any provision of this permit, or the application of any provision of this permit to any circumstance, is held invalid, the application of such provision to other circumstances, and the remainder of this permit shall not be affected thereby. K. Requirement to Obtain Coverage Under an Alternative Permit 1. The Department may require any owner or operator authorized by this permit to apply for and/or obtain either an individual SPDES permit or another SPDES general permit. When the Department requires any discharger authorized by a general permit to apply for an individual SPDES permit, it shall notify the discharger in writing that a permit application is required. This notice shall 35 (Part VII.K.1) include a brief statement of the reasons for this decision, an application form, a statement setting a time frame for the owner or operator to file the application for an individual SPDES permit, and a deadline, not sooner than 180 days from owner or operator receipt of the notification letter, whereby the authorization to discharge under this general permit shall be terminated. Applications must be submitted to the appropriate Permit Administrator at the Regional Office. The Department may grant additional time upon demonstration, to the satisfaction of the Department, that additional time to apply for an alternative authorization is necessary or where the Department has not provided a permit determination in accordance with Part 621 of this Title. 2. When an individual SPDES permit is issued to a discharger authorized to discharge under a general SPDES permit for the same discharge(s), the general permit authorization for outfalls authorized under the individual SPDES permit is automatically terminated on the effective date of the individual permit unless termination is earlier in accordance with 6 NYCRR Part 750. L. Proper Operation and Maintenance The owner or operator shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the owner or operator to achieve compliance with the conditions of this permit and with the requirements of the SW PPP. M. Inspection and Entry The owner or operator shall allow an authorized representative of the Department, EPA, applicable county health department, or, in the case of a construction site which discharges through an MS4, an authorized representative of the MS4 receiving the discharge, upon the presentation of credentials and other documents as may be required by law, to: 1. Enter upon the owner’s or operator's premises where a regulated facility or activity is located or conducted or where records must be k ept under the conditions of this permit; 2. Have access to and copy at reasonable times, any records that must be kept under the conditions of this permit; and 36 (Part VII.M.3) 3. Inspect at reasonable times any facilities or equipment (including monitoring and control equipment), practices or operations regulated or required by this permit. 4. Sample or monitor at reasonable times, for purposes of assuring permit compliance or as otherwise authorized by the Act or ECL, any substances or parameters at any location. N. Permit Actions This permit may, at any time, be modified, suspended, revoked, or renewed by the Department in accordance with 6 NYCRR Part 621. The filing of a request by the owner or operator for a permit modification, revocation and reissuance, termination, a notification of planned changes or anticipated noncompliance does not limit, diminish and/or stay compliance with any terms of this permit. O. Definitions Definitions of key terms are included in Appendix A of this permit. P. Re-Opener Clause 1. If there is evidence indicating potential or realized impacts on water quality due to any stormwater discharge associated with construction activity covered by this permit, the owner or operator of such discharge may be required to obtain an individual permit or alternative general permit in accordance with Part VII.K. of this permit or the permit may be modified to include different limitations and/or requirements. 2. Any Department initiated permit modification, suspension or revocation will be conducted in accordance with 6 NYCRR Part 621, 6 NYCRR 750 -1.18, and 6 NYCRR 750-1.20. Q. Penalties for Falsification of Forms and Reports In accordance with 6NYCRR Part 750-2.4 and 750-2.5, any person who knowingly makes any false material statement, representation, or certification in any application, record, report or other document filed or required to be maintained under this permit, including reports of compliance or noncompliance shall, upon conviction, be punished in accordance with ECL §71-1933 and or Articles 175 and 210 of the New York State Penal Law. 37 (Part VII.R) R. Other Permits Nothing in this permit relieves the owner or operator from a requirement to obtain any other permits required by law. 38 APPENDIX A – Acronyms and Definitions Acronyms APO – Agency Preservation Officer BMP – Best Management Practice CPESC – Certified Professional in Erosion and Sediment Control Cpv – Channel Protection Volume CWA – Clean Water Act (or the Federal Water Pollution Control Act, 33 U.S.C. §1251 et seq) DOW – Division of Water EAF – Environmental Assessment Form ECL -Environmental Conservation Law EPA – U. S. Environmental Protection Agency HSG – Hydrologic Soil Group MS4 – Municipal Separate Storm Sewer System NOI – Notice of Intent NOT – Notice of Termination NPDES – National Pollutant Discharge Elimination System OPRHP – Office of Parks, Recreation and Historic Places Qf – Extreme Flood Qp – Overbank Flood RRv – Runoff Reduction Volume RWE – Regional Water Engineer SEQR – State Environmental Quality Review SEQRA -State Environmental Quality Review Act SHPA – State Historic Preservation Act SPDES – State Pollutant Discharge Elimination System SWPPP – Stormwater Pollution Prevention Plan TMDL – Total Maximum Daily Load UPA – Uniform Procedures Act USDA – United States Department of Agriculture WQv – Water Quality Volume 39 Appendix A Definitions All definitions in this section are solely for the purposes of this permit. Agricultural Building – a structure designed and constructed to house farm implements, hay, grain, poultry, livestock or other horticultural products; excluding any structure designed, constructed or used, in whole or in part, for human habitation, as a place of employment where agricultural products are processed, treated or packaged, or as a place used by the public. Agricultural Property –means the land for construction of a barn, agricultural building, silo, stockyard, pen or other structural practices identified in Table II in the “Agricultural Management Practices Catalog for Nonpoint Source Pollution in New York State” prepared by the Department in cooperation with agencies of New York Nonpoint Source Coordinating Committee (dated June 2007). Alter Hydrology from Pre to Post-Development Conditions -means the post- development peak flow rate(s) has increased by more than 5% of the pre-developed condition for the design storm of interest (e.g. 10 yr and 100 yr). Combined Sewer -means a sewer that is designed to collect and convey both “sewage” and “stormwater”. Commence (Commencement of) Construction Activities -means the initial disturbance of soils associated with clearing, grading or excavation activit ies; or other construction related activities that disturb or expose soils such as demolition, stockpiling of fill material, and the initial installation of erosion and sediment control practices required in the SWPPP. See definition for “Construction Activity(ies)” also. Construction Activity(ies) -means any clearing, grading, excavation, filling, demolition or stockpiling activities that result in soil disturbance. Clearing activities can include, but are not limited to, logging equipment operation, the cutting and skidding of trees, stump removal and/or brush root removal. Construction activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility. Construction Site – means the land area where construction activity(ies) will occur. See definition for “Commence (Commencement of) Construction Activities” and “Larger Common Plan of Development or Sale” also. Dewatering – means the act of draining rainwater and/or groundwater from building foundations, vaults or excavations/trenches. Direct Discharge (to a specific surface waterbody) -means that runoff flows from a construction site by overland flow and the first point of discharge is the specific surface waterbody, or runoff flows from a construction site to a separate storm sewer system 40 Appendix A and the first point of discharge from the separate storm sewer system is the specific surface waterbody. Discharge(s) -means any addition of any pollutant to waters of the State through an outlet or point source. Embankment –means an earthen or rock slope that supports a road/highway. Endangered or Threatened Species – see 6 NYCRR Part 182 of the Department’s rules and regulations for definition of terms and requirements. Environmental Conservation Law (ECL) -means chapter 43-B of the Consolidated Laws of the State of New York, entitled the Environmental Conservation Law. Equivalent (Equivalence) – means that the practice or measure meets all the performance, longevity, maintenance, and safety objectives of the technical standard and will provide an equal or greater degree of water quality protection. Final Stabilization -means that all soil disturbance activities have ceased and a uniform, perennial vegetative cover with a density of eighty (80) percent over the entire pervious surface has been established; or other equivalent stabilization measures, such as permanent landscape mulches, rock rip-rap or washed/crushed stone have been applied on all disturbed areas that are not covered by permanent structures, concrete or pavement. General SPDES permit -means a SPDES permit issued pursuant to 6 NYCRR Part 750-1.21 and Section 70-0117 of the ECL authorizing a category of discharges. Groundwater(s) -means waters in the saturated zone. The saturated zone is a subsurface zone in which all the interstices are filled with water under pressure greater than that of the atmosphere. Although the zone may contain gas-filled interstices or interstices filled with fluids other than water, it is still considered saturated. Historic Property – means any building, structure, site, object or district that is listed on the State or National Registers of Historic Places or is determined to be eligible for listing on the State or National Registers of Historic Places. Impervious Area (Cover) -means all impermeable surfaces that cannot effectively infiltrate rainfall. This includes paved, concrete and gravel surfaces (i.e. parking lots, driveways, roads, runways and sidewalks); building rooftops and miscellaneous impermeable structures such as patios, pools, and sheds. Infeasible – means not technologically possible, or not economically practicable and achievable in light of best industry practices. 41 Appendix A Larger Common Plan of Development or Sale -means a contiguous area where multiple separate and distinct construction activities are occurring, or will occur, under one plan. The term “plan” in “larger common plan of development or sale” is broadly defined as any announcement or piece of documentation (including a sign, public notice or hearing, marketing plan, advertisement, drawing, permit application, State Environmental Quality Review Act (SEQRA) environmental assessment form or other documents, zoning request, computer design, etc.) or physical demarcation (including boundary signs, lot stakes, surveyor markings, etc.) indicating that construction activities may occur on a specific plot. For discrete construction projects that are located within a larger common plan of development or sale that are at least 1/4 mile apart, each project can be treated as a separate plan of development or sale provided any interconnecting road, pipeline or utility project that is part of the same “common plan” is not concurrently being disturbed. Minimize – means reduce and/or eliminate to the extent achievable using control measures (including best management practices) that are technologically available and economically practicable and achievable in light of best industry practices. Municipal Separate Storm Sewer (MS4) -a conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains): (i) Owned or operated by a State, city, town, borough, county, parish, district, association, or other public body (created by or pursuant to State law) having jurisdiction over disposal of sewage, industrial wastes, stormwater, or other wastes, including special districts under State law such as a sewer district, flood control district or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, or a designated and approved management agency under section 208 of the CWA that discharges to surface waters of the State; (ii) Designed or used for collecting or conveying stormwater; (iii) Which is not a combined sewer; and (iv) Which is not part of a Publicly Owned Treatment Works (POTW) as defined at 40 CFR 122.2. National Pollutant Discharge Elimination System (NPDES) -means the national system for the issuance of wastewater and stormwater permits under the Federal Water Pollution Control Act (Clean Water Act). Natural Buffer –means an undisturbed area with natural cover running along a surface water (e.g. wetland, stream, river, lake, etc.). New Development – means any land disturbance that does not meet the definition of Redevelopment Activity included in this appendix. 42 Appendix A New York State Erosion and Sediment Control Certificate Program – a certificate program that establishes and maintains a process to identify and recognize individuals who are capable of developing, designing, inspecting and maintaining erosion and sediment control plans on projects that disturb soils in New York State. The certificate program is administered by the New York State Conservation District Employees Association. NOI Acknowledgment Letter -means the letter that the Department sends to an owner or operator to acknowledge the Department’s receipt and acceptance of a complete Notice of Intent. This letter documents the owner’s or operator’s authorization to discharge in accordance with the general permit for stormwater discharges from construction activity. Nonpoint Source -means any source of water pollution or pollutants which is not a discrete conveyance or point source permitted pursuant to Title 7 or 8 of Article 17 of the Environmental Conservation Law (see ECL Section 17-1403). Overbank –means flow events that exceed the capacity of the stream channel and spill out into the adjacent floodplain. Owner or Operator -means the person, persons or legal entity which owns or leases the property on which the construction activity is occurring; an entity that has operational control over the construction plans and specifications, including the ability to make modifications to the plans and specifications; and/or an entity that has day-to-day operational control of those activities at a project that are necessary to ensure compliance with the permit conditions. Performance Criteria – means the design criteria listed under the “Required Elements” sections in Chapters 5, 6 and 10 of the technical standard, New York State Stormwater Management Design Manual, dated January 2015. It does not include the Sizing Criteria (i.e. WQv, RRv, Cpv, Qp and Qf ) in Part I.C.2. of the permit. Point Source -means any discernible, confined and discrete conveyance, including but not limited to any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding operation, vessel or other floating craft, or landfill leachate collection system from which pollutants are or may be discharged. Pollutant -means dredged spoil, filter backwash, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand and industrial, municipal, agricultural waste and ballast discharged into water; which may cause or might reasonably be expected to cause pollution of the waters of the state in contravention of the standards or guidance values adopted as provided in 6 NYCRR Parts 700 et seq . 43 Appendix A Qualified Inspector -means a person that is knowledgeable in the principles and practices of erosion and sediment control, such as a licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, New York State Erosion and Sediment Control Certificate Program holder or other Department endorsed individual(s). It can also mean someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided that person has training in the principles and practices of erosion and sediment control. Training in the principles and practices of erosion and sediment control means that the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect has received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department en dorsed entity. After receiving the initial training, the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect shall receive four (4) hours of training every three (3) years. It can also mean a person that meets the Qualified Professional qualifications in addition to the Qualified Inspector qualifications. Note: Inspections of any post-construction stormwater management practices that include structural components, such as a dam for an impoundment, shall be performed by a licensed Professional Engineer. Qualified Professional -means a person that is knowledgeable in the principles and practices of stormwater management and treatment, such as a licensed Professional Engineer, Registered Landscape Architect or other Department endorsed individual(s). Individuals preparing SWPPPs that require the post-construction stormwater management practice component must have an understanding of the principles of hydrology, water quality management practice design, water quantity control design, and, in many cases, the principles of hydraulics. All components of the SWPPP that involve the practice of engineering, as defined by the NYS Education Law (see Article 145), shall be prepared by, or under the direct supervision of, a professional engineer licensed to practice in the State of New York. Redevelopment Activity(ies) – means the disturbance and reconstruction of existing impervious area, including impervious areas that were removed from a project site within five (5) years of preliminary project plan submission to the local government (i.e. site plan, subdivision, etc.). Regulated, Traditional Land Use Control MS4 -means a city, town or village with land use control authority that is authorized to discharge under New York State DEC’s 44 Appendix A SPDES General Permit For Stormwater Discharges from Municipal Separate Stormwater Sewer Systems (MS4s) or the City of New York’s Individual SPDES Permit for their Municipal Separate Storm Sewer Systems (NY-0287890). Routine Maintenance Activity -means construction activity that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility, including, but not limited to: ▪Re-grading of gravel roads or parking lots, ▪Cleaning and shaping of existing roadside ditches and culverts that maintains the approximate original line and grade, and hydraulic capacity of the ditch, ▪Cleaning and shaping of existing roadside ditches that does not maintain the approximate original grade, hydraulic capacity and purpose of the ditch if the changes to the line and grade, hydraulic capacity or purpose of the ditch are installed to improve water quality and quantity controls (e.g. installing grass lined ditch), ▪Placement of aggregate shoulder backing that stabilizes the transition between the road shoulder and the ditch or embankment, ▪Full depth milling and filling of existing asphalt pavements, replacement of concrete pavement slabs, and similar work that does not expose soil or disturb the bottom six (6) inches of subbase material, ▪Long-term use of equipment storage areas at or near highway maintenance facilities, ▪Removal of sediment from the edge of the highway to restore a previously existing sheet-flow drainage connection from the highway surface to the highway ditch or embankment, ▪Existing use of Canal Corp owned upland disposal sites for the canal, and ▪Replacement of curbs, gutters, sidewalks and guide rail posts. Site limitations – means site conditions that prevent the use of an infiltration technique and or infiltration of the total WQv. Typical site limitations include: seasonal high groundwater, shallow depth to bedrock, and soils with an infiltration rate less than 0.5 inches/hour. The existence of site limitations shall be confirmed and documented using actual field testing (i.e. test pits, soil borings, and infiltration test) or using information from the most current United States Department of Agriculture (USDA) Soil Survey for the County where the project is located. Sizing Criteria – means the criteria included in Part I.C.2 of the permit that are used to size post-construction stormwater management control practices. The criteria include; Water Quality Volume (WQv), Runoff Reduction Volume (RRv), Channel Protection Volume (Cpv), Overbank Flood (Qp), and Extreme Flood (Qf). State Pollutant Discharge Elimination System (SPDES) -means the system established pursuant to Article 17 of the ECL and 6 NYCRR Part 750 for issuance of permits authorizing discharges to the waters of the state. 45 Appendix A Steep Slope – means land area designated on the current United States Department of Agriculture (“USDA”) Soil Survey as Soil Slope Phase “D”, (provided the map unit name is inclusive of slopes greater than 25%) , or Soil Slope Phase E or F, (regardless of the map unit name), or a combination of the three designations. Streambank – as used in this permit, means the terrain alongside the bed of a creek or stream. The bank consists of the sides of the channel, between which the flow is confined. Stormwater Pollution Prevention Plan (SWPPP) – means a project specific report, including construction drawings, that among other things: describes the construction activity(ies), identifies the potential sources of pollution at the construction site; describes and shows the stormwater controls that will be used to control the pollutants (i.e. erosion and sediment controls; for many projects, includes post-construction stormwater management controls); and identifies procedures the owner or operator will implement to comply with the terms and conditions of the permit. See Part III of the permit for a complete description of the information that must be included in the SWPPP. Surface Waters of the State -shall be construed to include lakes, bays, sounds, ponds, impounding reservoirs, springs, rivers, streams, creeks, estuaries, marshes, inlets, canals, the Atlantic ocean within the territorial seas of the state of New York and all other bodies of surface water, natural or artificial, inland or coastal, fresh or salt, public or private (except those private waters that do not combine or effect a junction with natural surface waters), which are wholly or partially within or bordering the state or within its jurisdiction. Waters of the state are further defined in 6 NYCRR Parts 800 to 941. Temporarily Ceased – means that an existing disturbed area will not be disturbed again within 14 calendar days of the previous soil disturbance. Temporary Stabilization -means that exposed soil has been covered with material(s) as set forth in the technical standard, New York Standards and Specifications for Erosion and Sediment Control, to prevent the exposed soil from eroding. The materials can include, but are not limited to, mulch, seed and mulch, and erosion control mats (e.g. jute twisted yarn, excelsior wood fiber mats). Total Maximum Daily Loads (TMDLs) -A TMDL is the sum of the allowable loads of a single pollutant from all contributing point and nonpoint sources. It is a calculation of the maximum amount of a pollutant that a waterbody can receive on a daily basis and still meet water quality standards, and an allocation of that amount to the pollutant's sources. A TMDL stipulates wasteload allocations (WLAs) for point source discharges, load allocations (LAs) for nonpoint sources, and a margin of safety (MOS). Trained Contractor -means an employee from the contracting (construction) company, identified in Part III.A.6., that has received four (4) hours of Department endorsed 46 Appendix A training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the trained contractor shall receive four (4) hours of training every three (3) years. It can also mean an employee from the contracting (construction) company, identified in Part III.A.6., that meets the qualified inspector qualifications (e.g. licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, New York State Erosion and Sediment Control Certificate Program holder, or someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity). The trained contractor is responsible for the day to day implementation of the SWPPP. Uniform Procedures Act (UPA) Permit -means a permit required under 6 NYCRR Part 621 of the Environmental Conservation Law (ECL), Article 70. Water Quality Standard -means such measures of purity or quality for any waters in relation to their reasonable and necessary use as promulgated in 6 NYCRR Part 700 et seq. 47 APPENDIX B – Required SWPPP Components by Project Type Table 1 Construction Activities that Require the Preparation of a SWPPP That Only Includes Erosion and Sediment Controls The following construction activities that involve soil disturbances of one (1) or more acres of land, but less than five (5) acres: • Single family home not located in one of the watersheds listed in Appendix C or not directly discharging to one of the 303(d) segments listed in Appendix E • Single family residential subdivisions with 25% or less impervious cover at total site build-out and not located in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E • Construction of a barn or other agricultural building, silo, stock yard or pen. The following construction activities that involve soil disturbances between five thousand (5000) square feet and one (1) acre of land: All construction activities located in the watersheds identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. The following construction activities that involve soil disturbances of one (1) or more acres of land: • Installation of underground, linear utilities; such as gas lines, fiber -optic cable, cable TV, electric, telephone, sewer mains, and water mains • Environmental enhancement projects, such as wetland mitigation projects, stormwater retrofits and stream restoration projects • Pond construction • Linear bike paths running through areas with vegetative cover, including bike paths surfaced with an impervious cover • Cross-country ski trails and walking/hiking trails • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that are not part of residential, commercial or institutional development; • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that include incidental shoulder or curb work along an existing highway to support construction of the sidewalk, bike path or walking path. • Slope stabilization projects • Slope flattening that changes the grade of the site, but does not significantly change the runoff characteristics 48 Appendix B Table 1 (Continued) CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT ONLY INCLUDES EROSION AND SEDIMENT CONTROLS The following construction activities that involve soil disturbances of one (1) or more acres of land: • Spoil areas that will be covered with vegetation • Vegetated open space projects (i.e. recreational parks, lawns, meadows, fields, downhill ski trails) excluding projects that alter hydrology from pre to post development conditions, • Athletic fields (natural grass) that do not include the construction or reconstruction of impervious area and do not alter hydrology from pre to post development conditions • Demolition project where vegetation will be established, and no redevelopment is planned • Overhead electric transmission line project that does not include the construction of permanent access roads or parking areas surfaced with impervious cover • Structural practices as identified in Table II in the “Agricultural Management Practices Catalog f or Nonpoint Source Pollution in New York State”, excluding projects that involve soil disturbances of greater than five acres and construction activities that include the construction or reconstruction of impervious area • Temporary access roads, median crossovers, detour roads, lanes, or other temporary impervious areas that will be restored to pre-construction conditions once the construction activit y is complete 49 Appendix B Table 2 CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT INCLUDES POST-CONSTRUCTION STORMWATER MANAGEMENT PRACTICES The following construction activities that involve soil disturbances of one (1) or more acres of land: • Single family home located in one of the watersheds listed in Appendix C or directly discharging to one of the 303(d) segments listed in Appendix E • Single family home that disturbs five (5) or more acres of land • Single family residential subdivisions located in one of the watersheds listed in Appendix C or directly discharging to one of the 303(d) segments listed in Appendix E • Single family residential subdivisions that involve soil disturbances of between one (1) and five (5) acres of land with greater than 25% impervious cover at total site build-out • Single family residential subdivisions that involve soil disturbances of five (5) or more acres of land, and single family residential subdivisions that involve soil disturbances of less than five (5) acres that are part of a larger common plan of development or sale that will ultimately disturb five or more acres of land • Multi-family residential developments; includes duplexes, townhomes, condominiums, senior housing complexes, apartment complexes, and mobile home parks • Airports • Amusement parks • Breweries, cideries, and wineries, including establishments constructed on agricultural land • Campgrounds • Cemeteries that include the construction or reconstruction of impervious area (>5% of disturbed area) or alter the hydrology from pre to post development conditions • Commercial developments • Churches and other places of worship • Construction of a barn or other agricultural building (e.g. silo) and structural practices as identified in Table II in the “Agricultural Management Practices Catalog for Nonpoint Source Pollution in New York State” that include the construction or reconstruction of impervious area, excluding projects that involve soil disturbances of less than five acres. • Golf courses • Institutional development; includes hospitals, prisons, schools and colleges • Industrial facilities; includes industrial parks • Landfills • Municipal facilities; includes highway garages, transfer stations, office buildings, POTW’s, water treatment plants, and water storage tanks • Office complexes • Playgrounds that include the construction or reconstruction of impervious area • Sports complexes • Racetracks; includes racetracks with earthen (dirt) surface • Road construction or reconstruction, including roads constructed as part of the construction activities listed in Table 1 50 Appendix B Table 2 (Continued) CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT INCLUDES POST-CONSTRUCTION STORMWATER MANAGEMENT PRACTICES The following construction activities that involve soil disturbances of one (1) or more acres of land: • Parking lot construction or reconstruction, including parking lots constructed as part of the construction activities listed in Table 1 • Athletic fields (natural grass) that include the construction or reconstruction of impervious area (>5% of disturbed area) or alter the hydrology from pre to post development conditions • Athletic fields with artificial turf • Permanent access roads, parking areas, substations, compressor stations and well drilling pads, surfaced with impervious cover, and constructed as part of an over-head electric transmission line project, wind-power project, cell tower project, oil or gas well drilling project, sewer or water main project or other linear utility project • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that are part of a residential, commercial or institutional development • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that are part of a highway construction or reconstruction project • All other construction activities that include the construction or reconstruction of impervious area or alter the hydrology from pre to post development conditions, and are not listed in Table 1 51 APPENDIX C – Watersheds Requiring Enhanced Phosphorus Removal Watersheds where owners or operators of construction activities identified in Table 2 of Appendix B must prepare a SWPPP that includes post-construction stormwater management practices designed in conformance with the Enhanced Phosphorus Removal Standards included in the technical standard, New York State Stormwater Management Design Manual (“Design Manual”). • Entire New York City Watershed located east of the Hudson River -Figure 1 • Onondaga Lake Watershed -Figure 2 • Greenwood Lake Watershed -Figure 3 • Oscawana Lake Watershed – Figure 4 • Kinderhook Lake Watershed – Figure 5 52 Appendix C Figure 1 -New York City Watershed East of the Hudson 53 Appendix C Figure 2 -Onondaga Lake Watershed 54 Appendix C Figure 3 -Greenwood Lake Watershed 55 Appendix C Figure 4 -Oscawana Lake Watershed 56 Appendix C Figure 5 -Kinderhook Lake Watershed 57 APPENDIX D – Watersheds with Lower Disturbance Threshold Watersheds where owners or operators of construction activities that involve soil disturbances between five thousand (5000) square feet and one (1) acre of land must obtain coverage under this permit. Entire New York City Watershed that is located east of the Hudson River -See Figure 1 in Appendix C 58 APPENDIX E – 303(d) Segments Impaired by Construction Related Pollutant(s) List of 303(d) segments impaired by pollutants related to construction activity (e.g. silt, sediment or nutrients). The list was developed using ”The Final New York State 2016 Section 303(d) List of Impaired Waters Requiring a TMDL/Other Strategy” dated November 2016. Owners or operators of single family home and single family residential subdivisions with 25% or less total impervious cover at total site build-out that involve soil disturbances of one or more acres of land, but less than 5 acres, and directly discharge to one of the listed segments below shall prepare a SWPPP that includes post-construction stormwater management practices designed in conformance with the New York State Stormwater Management Design Manual (“Design Manual”), dated January 2015. COUNTY WATERBODY POLLUTANT Albany Ann Lee (Shakers) Pond, Stump Pond Nutrients Albany Basic Creek Reservoir Nutrients Allegany Amity Lake, Saunders Pond Nutrients Bronx Long Island Sound, Bronx Nutrients Bronx Van Cortlandt Lake Nutrients Broome Fly Pond, Deer Lake, Sky Lake Nutrients Broome Minor Tribs to Lower Susquehanna (north) Nutrients Broome Whitney Point Lake/Reservoir Nutrients Cattaraugus Allegheny River/Reservoir Nutrients Cattaraugus Beaver (Alma) Lake Nutrients Cattaraugus Case Lake Nutrients Cattaraugus Linlyco/Club Pond Nutrients Cayuga Duck Lake Nutrients Cayuga Little Sodus Bay Nutrients Chautauqua Bear Lake Nutrients Chautauqua Chadakoin River and tribs Nutrients Chautauqua Chautauqua Lake, North Nutrients Chautauqua Chautauqua Lake, South Nutrients Chautauqua Findley Lake Nutrients Chautauqua Hulburt/Clymer Pond Nutrients Clinton Great Chazy River, Lower, Main Stem Silt/Sediment Clinton Lake Champlain, Main Lake, Middle Nutrients Clinton Lake Champlain, Main Lake, North Nutrients Columbia Kinderhook Lake Nutrients Columbia Robinson Pond Nutrients Cortland Dean Pond Nutrients 59 303(d) Segments Impaired by Construction Related Pollutant(s) Dutchess Fall Kill and tribs Nutrients Dutchess Hillside Lake Nutrients Dutchess Wappingers Lake Nutrients Dutchess Wappingers Lake Silt/Sediment Erie Beeman Creek and tribs Nutrients Erie Ellicott Creek, Lower, and tribs Silt/Sediment Erie Ellicott Creek, Lower, and tribs Nutrients Erie Green Lake Nutrients Erie Little Sister Creek, Lower, and tribs Nutrients Erie Murder Creek, Lower, and tribs Nutrients Erie Rush Creek and tribs Nutrients Erie Scajaquada Creek, Lower, and tribs Nutrients Erie Scajaquada Creek, Middle, and tribs Nutrients Erie Scajaquada Creek, Upper, and tribs Nutrients Erie South Branch Smoke Cr, Lower, and tribs Silt/Sediment Erie South Branch Smoke Cr, Lower, and tribs Nutrients Essex Lake Champlain, Main Lake, South Nutrients Essex Lake Champlain, South Lake Nutrients Essex Willsboro Bay Nutrients Genesee Bigelow Creek and tribs Nutrients Genesee Black Creek, Middle, and minor tribs Nutrients Genesee Black Creek, Upper, and minor tribs Nutrients Genesee Bowen Brook and tribs Nutrients Genesee LeRoy Reservoir Nutrients Genesee Oak Orchard Cr, Upper, and tribs Nutrients Genesee Tonawanda Creek, Middle, Main Stem Nutrients Greene Schoharie Reservoir Silt/Sediment Greene Sleepy Hollow Lake Silt/Sediment Herkimer Steele Creek tribs Silt/Sediment Herkimer Steele Creek tribs Nutrients Jefferson Moon Lake Nutrients Kings Hendrix Creek Nutrients Kings Prospect Park Lake Nutrients Lewis Mill Creek/South Branch, and tribs Nutrients Livingston Christie Creek and tribs Nutrients Livingston Conesus Lake Nutrients Livingston Mill Creek and minor tribs Silt/Sediment Monroe Black Creek, Lower, and minor tribs Nutrients Monroe Buck Pond Nutrients Monroe Cranberry Pond Nutrients 60 303(d) Segments Impaired by Construction Related Pollutant(s) Monroe Lake Ontario Shoreline, Western Nutrients Monroe Long Pond Nutrients Monroe Mill Creek and tribs Nutrients Monroe Mill Creek/Blue Pond Outlet and tribs Nutrients Monroe Minor Tribs to Irondequoit Bay Nutrients Monroe Rochester Embayment -East Nutrients Monroe Rochester Embayment -West Nutrients Monroe Shipbuilders Creek and tribs Nutrients Monroe Thomas Creek/White Brook and tribs Nutrients Nassau Beaver Lake Nutrients Nassau Camaans Pond Nutrients Nassau East Meadow Brook, Upper, and tribs Silt/Sediment Nassau East Rockaway Channel Nutrients Nassau Grant Park Pond Nutrients Nassau Hempstead Bay Nutrients Nassau Hempstead Lake Nutrients Nassau Hewlett Bay Nutrients Nassau Hog Island Channel Nutrients Nassau Long Island Sound, Nassau County Waters Nutrients Nassau Massapequa Creek and tribs Nutrients Nassau Milburn/Parsonage Creeks, Upp, and tribs Nutrients Nassau Reynolds Channel, west Nutrients Nassau Tidal Tribs to Hempstead Bay Nutrients Nassau Tribs (fresh) to East Bay Nutrients Nassau Tribs (fresh) to East Bay Silt/Sediment Nassau Tribs to Smith/Halls Ponds Nutrients Nassau Woodmere Channel Nutrients New York Harlem Meer Nutrients New York The Lake in Central Park Nutrients Niagara Bergholtz Creek and tribs Nutrients Niagara Hyde Park Lake Nutrients Niagara Lake Ontario Shoreline, Western Nutrients Niagara Lake Ontario Shoreline, Western Nutrients Oneida Ballou, Nail Creeks and tribs Nutrients Onondaga Harbor Brook, Lower, and tribs Nutrients Onondaga Ley Creek and tribs Nutrients Onondaga Minor Tribs to Onondaga Lake Nutrients Onondaga Ninemile Creek, Lower, and tribs Nutrients Onondaga Onondaga Creek, Lower, and tribs Nutrients Onondaga Onondaga Creek, Middle, and tribs Nutrients 61 303(d) Segments Impaired by Construction Related Pollutant(s) Onondaga Onondaga Lake, northern end Nutrients Onondaga Onondaga Lake, southern end Nutrients Ontario Great Brook and minor tribs Silt/Sediment Ontario Great Brook and minor tribs Nutrients Ontario Hemlock Lake Outlet and minor tribs Nutrients Ontario Honeoye Lake Nutrients Orange Greenwood Lake Nutrients Orange Monhagen Brook and tribs Nutrients Orange Orange Lake Nutrients Orleans Lake Ontario Shoreline, Western Nutrients Orleans Lake Ontario Shoreline, Western Nutrients Oswego Lake Neatahwanta Nutrients Oswego Pleasant Lake Nutrients Putnam Bog Brook Reservoir Nutrients Putnam Boyd Corners Reservoir Nutrients Putnam Croton Falls Reservoir Nutrients Putnam Diverting Reservoir Nutrients Putnam East Branch Reservoir Nutrients Putnam Lake Carmel Nutrients Putnam Middle Branch Reservoir Nutrients Putnam Oscawana Lake Nutrients Putnam Palmer Lake Nutrients Putnam West Branch Reservoir Nutrients Queens Bergen Basin Nutrients Queens Flushing Creek/Bay Nutrients Queens Jamaica Bay, Eastern, and tribs (Queens) Nutrients Queens Kissena Lake Nutrients Queens Meadow Lake Nutrients Queens Willow Lake Nutrients Rensselaer Nassau Lake Nutrients Rensselaer Snyders Lake Nutrients Richmond Grasmere Lake/Bradys Pond Nutrients Rockland Congers Lake, Swartout Lake Nutrients Rockland Rockland Lake Nutrients Saratoga Ballston Lake Nutrients Saratoga Dwaas Kill and tribs Silt/Sediment Saratoga Dwaas Kill and tribs Nutrients Saratoga Lake Lonely Nutrients Saratoga Round Lake Nutrients Saratoga Tribs to Lake Lonely Nutrients 62 303(d) Segments Impaired by Construction Related Pollutant(s) Schenectady Collins Lake Nutrients Schenectady Duane Lake Nutrients Schenectady Mariaville Lake Nutrients Schoharie Engleville Pond Nutrients Schoharie Summit Lake Nutrients Seneca Reeder Creek and tribs Nutrients St.Lawrence Black Lake Outlet/Black Lake Nutrients St.Lawrence Fish Creek and minor tribs Nutrients Steuben Smith Pond Nutrients Suffolk Agawam Lake Nutrients Suffolk Big/Little Fresh Ponds Nutrients Suffolk Canaan Lake Silt/Sediment Suffolk Canaan Lake Nutrients Suffolk Flanders Bay, West/Lower Sawmill Creek Nutrients Suffolk Fresh Pond Nutrients Suffolk Great South Bay, East Nutrients Suffolk Great South Bay, Middle Nutrients Suffolk Great South Bay, West Nutrients Suffolk Lake Ronkonkoma Nutrients Suffolk Long Island Sound, Suffolk County, West Nutrients Suffolk Mattituck (Marratooka) Pond Nutrients Suffolk Meetinghouse/Terrys Creeks and tribs Nutrients Suffolk Mill and Seven Ponds Nutrients Suffolk Millers Pond Nutrients Suffolk Moriches Bay, East Nutrients Suffolk Moriches Bay, West Nutrients Suffolk Peconic River, Lower, and tidal tribs Nutrients Suffolk Quantuck Bay Nutrients Suffolk Shinnecock Bay and Inlet Nutrients Suffolk Tidal tribs to West Moriches Bay Nutrients Sullivan Bodine, Montgomery Lakes Nutrients Sullivan Davies Lake Nutrients Sullivan Evens Lake Nutrients Sullivan Pleasure Lake Nutrients Tompkins Cayuga Lake, Southern End Nutrients Tompkins Cayuga Lake, Southern End Silt/Sediment Tompkins Owasco Inlet, Upper, and tribs Nutrients Ulster Ashokan Reservoir Silt/Sediment Ulster Esopus Creek, Upper, and minor tribs Silt/Sediment Warren Hague Brook and tribs Silt/Sediment 63 303(d) Segments Impaired by Construction Related Pollutant(s) Warren Huddle/Finkle Brooks and tribs Silt/Sediment Warren Indian Brook and tribs Silt/Sediment Warren Lake George Silt/Sediment Warren Tribs to L.George, Village of L George Silt/Sediment Washington Cossayuna Lake Nutrients Washington Lake Champlain, South Bay Nutrients Washington Tribs to L.George, East Shore Silt/Sediment Washington Wood Cr/Champlain Canal and minor tribs Nutrients Wayne Port Bay Nutrients Westchester Amawalk Reservoir Nutrients Westchester Blind Brook, Upper, and tribs Silt/Sediment Westchester Cross River Reservoir Nutrients Westchester Lake Katonah Nutrients Westchester Lake Lincolndale Nutrients Westchester Lake Meahagh Nutrients Westchester Lake Mohegan Nutrients Westchester Lake Shenorock Nutrients Westchester Long Island Sound, Westchester (East) Nutrients Westchester Mamaroneck River, Lower Silt/Sediment Westchester Mamaroneck River, Upper, and minor tribs Silt/Sediment Westchester Muscoot/Upper New Croton Reservoir Nutrients Westchester New Croton Reservoir Nutrients Westchester Peach Lake Nutrients Westchester Reservoir No.1 (Lake Isle) Nutrients Westchester Saw Mill River, Lower, and tribs Nutrients Westchester Saw Mill River, Middle, and tribs Nutrients Westchester Sheldrake River and tribs Silt/Sediment Westchester Sheldrake River and tribs Nutrients Westchester Silver Lake Nutrients Westchester Teatown Lake Nutrients Westchester Titicus Reservoir Nutrients Westchester Truesdale Lake Nutrients Westchester Wallace Pond Nutrients Wyoming Java Lake Nutrients Wyoming Silver Lake Nutrients 64 APPENDIX F – List of NYS DEC Regional Offices Region COVERING THE FOLLOWING COUNTIES: DIVISION OF ENVIRONMENTAL PERMITS (DEP) PERMIT ADMINISTRATORS DIVISION OF WATER (DOW) WATER (SPDES) PROGRAM 1 NASSAU AND SUFFOLK 50 CIRCLE ROAD STONY BROOK, NY 11790 TEL. (631) 444-0365 50 CIRCLE ROAD STONY BROOK, NY 11790-3409 TEL. (631) 444-0405 2 BRONX, KINGS, NEW YORK, QUEENS AND RICHMOND 1 HUNTERS POINT PLAZA, 47-40 21ST ST. LONG ISLAND CITY, NY 11101-5407 TEL. (718) 482-4997 1 HUNTERS POINT PLAZA, 47-40 21ST ST. LONG ISLAND CITY, NY 11101-5407 TEL. (718) 482-4933 3 DUTCHESS, ORANGE, PUTNAM, ROCKLAND, SULLIVAN, ULSTER AND WESTCHESTER 21 SOUTH PUTT CORNERS ROAD NEW PALTZ, NY 12561-1696 TEL. (845) 256-3059 100 HILLSIDE AVENUE, SUITE 1W WHITE PLAINS, NY 10603 TEL. (914) 428 -2505 4 ALBANY, COLUMBIA, DELAWARE, GREENE, MONTGOMERY, OTSEGO, RENSSELAER, SCHENECTADY AND SCHOHARIE 1150 NORTH WESTCOTT ROAD SCHENECTADY, NY 12306-2014 TEL. (518) 357-2069 1130 NORTH WESTCOTT ROAD SCHENECTADY, NY 12306-2014 TEL. (518) 357-2045 5 CLINTON, ESSEX, FRANKLIN, FULTON, HAMILTON, SARATOGA, WARREN AND WASHINGTON 1115 STATE ROUTE 86, PO BOX 296 RAY BROOK, NY 12977-0296 TEL. (518) 897-1234 232 GOLF COURSE ROAD WARRENSBURG, NY 12885-1172 TEL. (518) 623-1200 6 HERKIMER, JEFFERSON, LEWIS, ONEIDA AND ST. LAWRENCE STATE OFFICE BUILDING 317 WASHINGTON STREET WATERTOWN, NY 13601-3787 TEL. (315) 785-2245 STATE OFFICE BUILDING 207 GENESEE STREET UTICA, NY 13501-2885 TEL. (315) 793-2554 BROOME, CAYUGA, CHENANGO, CORTLAND, 615 ERIE BLVD. WEST 615 ERIE BLVD. WEST 7 MADISON, ONONDAGA, SYRACUSE, NY 13204-2400 SYRACUSE, NY 13204-2400 OSWEGO, TIOGA AND TOMPKINS TEL. (315) 426-7438 TEL. (315) 426-7500 CHEMUNG, GENESEE, LIVINGSTON, MONROE, 6274 EAST AVON-LIMA 6274 EAST AVON-LIMA RD. 8 ONTARIO, ORLEANS, SCHUYLER, SENECA, STEUBEN, WAYNE AND YATES ROADAVON, NY 14414-9519 TEL. (585) 226-2466 AVON, NY 14414-9519 TEL. (585) 226-2466 9 ALLEGANY, CATTARAUGUS, CHAUTAUQUA, ERIE, NIAGARA AND WYOMING 270 MICHIGAN AVENUE BUFFALO, NY 14203-2999 TEL. (716) 851-7165 270 MICHIGAN AVENUE BUFFALO, NY 14203-2999 TEL. (716) 851-7070 65 STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX B NOTICE OF INTENT Fax (Owner/Operator) -- Page 1 of 14 New York State Department of Environmental Conservation Division of Water 625 Broadway, 4th Floor Albany, New York 12233-3505 NOTICE OF INTENT -IMPORTANT- RETURN THIS FORM TO THE ADDRESS ABOVE OWNER/OPERATOR MUST SIGN FORM StormwaterDischargesAssociatedwithConstructionActivityUnderState PollutantDischargeEliminationSystem(SPDES)GeneralPermit#GP-0--00 Allsectionsmustbecompletedunlessotherwisenoted.Failuretocompleteallitemsmay resultinthisformbeingreturnedtoyou,therebydelayingyourcoverageunderthis GeneralPermit.Applicantsmustreadandunderstandtheconditionsofthepermitand prepareaStormwaterPollutionPreventionPlanpriortosubmittingthisNOI.Applicants areresponsibleforidentifyingandobtainingotherDECpermitsthatmayberequired. Owner/Operator Information Owner/Operator Contact Person Last Name (NOT CONSULTANT) Owner/Operator Contact Person First Name Owner/Operator Mailing Address City State Zip - Phone (Owner/Operator) -- Email (Owner/Operator) Owner/Operator (Company Name/Private Owner Name/Municipality Name) NYR (for DEC use only) FED TAX ID -(not required for individuals) 0644089821 1. ProvidetheGeographicCoordinatesfortheprojectsite.TodothisJRWRWKH NYSDECStormwaterInteractiveMapontheDECwebsiteat: KWWSV JLVVHUYLFHVGHFQ\JRYJLVVWRUPZDWHU ZoomintoyourProjectLocationsuchthatyoucanaccuratelyclickonthecentroidof yoursite.OnceyouhavelocatedWKHFHQWURLGRIyourprojectsite,gototheERWWRP ULJKWKDQGFRUQHURIWKHPDSIRUWKH;<FRRUGLQDWHV.(QWHUthecoordinatesintothe boxesbelow.Forproblemswiththeinteractivemapusethehelpfunction. X Coordinates (Easting)Y Coordinates (Northing) Project Site Information Project/Site Name Street Address (NOT P.O. BOX) City/Town/Village (THAT ISSUES BUILDING PERMIT) State Zip - County Name of Nearest Cross Street Distance to Nearest Cross Street (Feet)Project In Relation to Cross Street North South East West Page 2 of 14 2. What is the nature of this construction project? New Construction Redevelopment with increase in impervious area Redevelopment with no increase in impervious area Section-Block-ParcelTax Map Numbers Side of Street North South East West DEC Region Tax Map Numbers 6401089828 ([ ([ 3. Select the predominant land use for both pre and post development conditions. SELECT ONLY ONE CHOICE FOR EACH Page 3 of 14 Existing Land Use FOREST PASTURE/OPEN LAND CULTIVATED LAND SINGLE FAMILY HOME SINGLE FAMILY SUBDIVISION TOWN HOME RESIDENTIAL MULTIFAMILY RESIDENTIAL INSTITUTIONAL/SCHOOL INDUSTRIAL COMMERCIAL ROAD/HIGHWAY RECREATIONAL/SPORTS FIELD BIKE PATH/TRAIL LINEAR UTILITY PARKING LOT OTHER Future Land Use SINGLE FAMILY HOME SINGLE FAMILY SUBDIVISION TOWN HOME RESIDENTIAL MULTIFAMILY RESIDENTIAL INSTITUTIONAL/SCHOOL INDUSTRIAL COMMERCIAL MUNICIPAL ROAD/HIGHWAY RECREATIONAL/SPORTS FIELD BIKE PATH/TRAIL LINEAR UTILITY (water, sewer, gas, etc.) PARKING LOT CLEARING/GRADING ONLY DEMOLITION, NO REDEVELOPMENT WELL DRILLING ACTIVITY *(Oil, Gas, etc.) OTHER Pre-Development Post-Development 4. In accordance with the larger common plan of development or sale, enter the total project site area; the total area to be disturbed; existing impervious area to be disturbed (for redevelopment activities); and the future impervious area constructed within the disturbed area. (Round to the nearest tenth of an acre.) Number of Lots *Note: for gas well drilling, non-high volume hydraulic fractured wells only Total Site Area . Total Area To Be Disturbed . Existing Impervious Area To Be Disturbed . Future Impervious Area Within Disturbed Area . 5. Do you plan to disturb more than 5 acres of soil at any one time?Yes No 6. Indicate the percentage of each Hydrologic Soil Group(HSG) at the site. A B C D %%%% 7. Is this a phased project?Yes No 8. Enter the planned start and end dates of the disturbance activities. - Start Date // End Date // 4107089829 Page 4 of 14 Name 9. Identify the nearest surface waterbody(ies) to which construction site runoff will discharge. 9a. Type of waterbody identified in Question 9? Wetland / State Jurisdiction On Site (Answer 9b) Wetland / State Jurisdiction Off Site Wetland / Federal Jurisdiction On Site (Answer 9b) Wetland / Federal Jurisdiction Off Site Stream / Creek On Site Stream / Creek Off Site River On Site River Off Site Lake On Site Lake Off Site Other Type On Site Other Type Off Site 9b. How was the wetland identified? Regulatory Map Delineated by Consultant Delineated by Army Corps of Engineers Other (identify) Yes No Yes No Yes No Hasthesurfacewaterbody(ies)inquestion9beenidentifiedasa 303(d)segmentinAppendixEofGP-0--00? IsthisprojectlocatedinoneoftheWatershedsidentifiedin AppendixCofGP-0--00? Istheprojectlocatedinoneofthewatershed areasassociatedwithAAandAA-Sclassified waters? Ifno,skipquestion13. Doesthisconstructionactivitydisturblandwithno existingimperviouscoverandwheretheSoilSlopePhaseis identifiedasanEorFontheUSDASoilSurvey? IfYes,whatistheacreagetobedisturbed? Yes No . 14. Will the project disturb soils within a State regulated wetland or the protected 100 foot adjacent area? Yes No 8600089821 15. Does the site runoff enter a separate storm sewer system (including roadside drains, swales, ditches, culverts, etc)? 16. What is the name of the municipality/entity that owns the separate storm sewer system? Yes No Unknown 17. Does any runoff from the site enter a sewer classified as a Combined Sewer? Yes No Unknown 21. Has the required Erosion and Sediment Control component of the SWPPP been developed in conformance with the current NYS Standards and Specifications for Erosion and Sediment Control (aka Blue Book)? 22. Does this construction activity require the development of a SWPPP that includes the post-construction stormwater management practice component (i.e. Runoff Reduction, Water Quality and Quantity Control practices/techniques)? If No, skip questions 23 and 27-39. 23. Has the post-construction stormwater management practice component of the SWPPP been developed in conformance with the current NYS Stormwater Management Design Manual? Yes No Yes No Yes No Page 5 of 14 18. Will future use of this site be an agricultural property as defined by the NYS Agriculture and Markets Law? Yes No Yes No 20. Is this a remediation project being done under a Department approved work plan? (i.e. CERCLA, RCRA, Voluntary Cleanup Agreement, etc.) Yes No19. Is this property owned by a state authority, state agency, federal government or local government? 6403089820 Page 6 of 14 SWPPP Preparer Contact Name (Last, Space, First) Mailing Address City State Zip - Phone -- Fax -- Email Signature Date // First Name Last Name MI SWPPP Preparer Certification 24. The Stormwater Pollution Prevention Plan (SWPPP) was prepared by: Professional Engineer (P.E.) Soil and Water Conservation District (SWCD) Registered Landscape Architect (R.L.A) Certified Professional in Erosion and Sediment Control (CPESC) Owner/Operator Other IherebycertifythattheStormwaterPollutionPreventionPlan(SWPPP)for thisprojecthasbeenpreparedinaccordancewiththetermsandconditionsof theGP-0--00.Furthermore,Iunderstandthatcertifyingfalse,incorrect orinaccurateinformationisaviolationofthispermitandthelawsofthe StateofNewYorkandcouldsubjectmetocriminal,civiland/or administrativeproceedings. 0251089825 26. Select all of the erosion and sediment control practices that will be employed on the project site: Page 7 of 14 Biotechnical Brush Matting Wattling Other 25. Has a construction sequence schedule for the planned management practices been prepared? Yes No Brush Matting Dune Stabilization Grassed Waterway Mulching Protecting Vegetation Recreation Area Improvement Seeding Sodding Straw/Hay Bale Dike Streambank Protection Temporary Swale Topsoiling Vegetating Waterways Vegetative Measures Check Dams Construction Road Stabilization Dust Control Earth Dike Level Spreader Perimeter Dike/Swale Pipe Slope Drain Portable Sediment Tank Rock Dam Sediment Basin Sediment Traps Silt Fence Stabilized Construction Entrance Storm Drain Inlet Protection Straw/Hay Bale Dike Temporary Access Waterway Crossing Temporary Stormdrain Diversion Temporary Swale Turbidity Curtain Water bars Temporary Structural Debris Basin Diversion Grade Stabilization Structure Land Grading Lined Waterway (Rock) Paved Channel (Concrete) Paved Flume Retaining Wall Riprap Slope Protection Rock Outlet Protection Streambank Protection Permanent Structural 0005089822 Page 8 of 14 Post-construction Stormwater Management Practice (SMP) Requirements Important: Completion of Questions 27-39 is not required if response to Question 22 is No. 27. Identify all site planning practices that were used to prepare the final site plan/layout for the project. Preservation of Undisturbed Areas Preservation of Buffers Reduction of Clearing and Grading Locating Development in Less Sensitive Areas Roadway Reduction Sidewalk Reduction Driveway Reduction Cul-de-sac Reduction Building Footprint Reduction Parking Reduction 28. Provide the total Water Quality Volume (WQv) required for this project (based on final site plan/layout). Total WQv Required .acre-feet 29. Identify the RR techniques (Area Reduction), RR techniques(Volume Reduction) and Standard SMPs with RRv Capacity in Table 1 (See Page 9) that were used to reduce the Total WQv Required(#28). Also, provide in Table 1 the total impervious area that contributes runoff to each technique/practice selected. For the Area Reduction Techniques, provide the total contributing area (includes pervious area) and, if applicable, the total impervious area that contributes runoff to the technique/practice. Note:Redevelopment projects shall use Tables 1 and 2 to identify the SMPs used to treat and/or reduce the WQv required. If runoff reduction techniques will not be used to reduce the required WQv, skip to question 33a after identifying the SMPs. 27a. Indicate which of the following soil restoration criteria was used to address the requirements in Section 5.1.6("Soil Restoration") of the Design Manual (2010 version). All disturbed areas Compacted areas will be restored in accordance with the Soil Restoration requirements in Table 5.3 of the Design Manual (see page 5-22). were considered as impervious cover when calculating the WQv Required,andthe compacted areas were assigned a post-construction Hydrologic Soil Group (HSG) designation that is one level less permeable than existing conditions for the hydrology analysis. 0182089828 and/or and/or and/or and/or Conservation of Natural Areas (RR-1) Sheetflow to Riparian Tree Planting/Tree Pit (RR-3) Disconnection of Rooftop Runoff (RR-4) Vegetated Swale (RR-5) Rain Garden (RR-6) Stormwater Planter (RR-7) Rain Barrel/Cistern (RR-8) Porous Pavement (RR-9) Green Roof (RR-10) Infiltration Trench (I-1) Infiltration Basin (I-2) Dry Well (I-3) Underground Infiltration System (I-4) Bioretention (F-5) Dry Swale (O-1) Micropool Extended Detention (P-1) Wet Pond (P-2) Wet Extended Detention (P-3) Multiple Pond System (P-4) Pocket Pond (P-5) Surface Sand Filter (F-1) Underground Sand Filter (F-2) Perimeter Sand Filter (F-3) Organic Filter (F-4) Shallow Wetland (W-1) Extended Detention Wetland (W-2) Pond/Wetland System (W-3) Pocket Wetland (W-4) Wet Swale (O-2) . . . . . . . . . . . . . . ............................ .................................. .................................... ............................................. ..................................... ................................ ................................... ......................................... ......................................... ............................. ..................................... .......................................... ............................................... ................................................ RR Techniques (Area Reduction) Total Contributing Impervious Area(acres) . . . . . . . . . . . . . . . ... .......... .......... .. ......................................... ............................................ ..................................... .................................... ........................................ ..................................... ...................................... ................................................ ........................ ............................................ ............................................... Table 1 - Runoff Reduction (RR) Techniques and Standard Stormwater Management Practices (SMPs) RR Techniques (Volume Reduction) Standard SMPs with RRv Capacity Standard SMPs Page 9 of 14 Total Contributing Area (acres) . . . . Buffers/Filters Strips (RR-2) ............................................. 7738089822 . 31. Is the Total RRv provided (#30) greater than or equal to the total WQv required (#28). If Yes, go to question 36. If No, go to question 32. Yes No Total RRv provided 32. Provide the Minimum RRv required based on HSG. [Minimum RRv Required = (P)(0.95)(Ai)/12, Ai=(S)(Aic)] Minimum RRv Required .acre-feet 30. Indicate the Total RRv provided by the RR techniques (Area/Volume Reduction) and Standard SMPs with RRv capacity identified in question 29. acre-feet 32a. Is the Total RRv provided (#30) greater than or equal to the Minimum RRv Required (#32)? If Yes, go to question 33. Note : Use the space provided in question #39 to summarize the specific site limitations and justification for not reducing 100% of WQv required (#28). A detailed evaluation of the specific site limitations and justification for not reducing 100% of the WQv required (#28) must also be included in the SWPPP. If No, sizing criteria has not been met, so NOI can not be processed. SWPPP preparer must modify design to meet sizing criteria. Yes No Page 10 of 14 Hydrodynamic Wet Vault Media Filter Other Alternative SMP . . . . ............................................... .................................................. ............................................... .................. Table 2 -Alternative SMPs (DO NOT INCLUDE PRACTICES BEING USED FOR PRETREATMENT ONLY) Note: Redevelopment projects which do not use RR techniques, shall use questions 28, 29, 33 and 33a to provide SMPs used, total WQv required and total WQv provided for the project. Total Contributing Impervious Area(acres) Provide the name and manufacturer of the Alternative SMPs (i.e. proprietary practice(s)) being used for WQv treatment. Name Manufacturer 0762089822 .acre-feet CPv Provided acre-feet. CPv Required 36. Provide the total Channel Protection Storage Volume (CPv) required and provided or select waiver (36a), if applicable. Page 11 of 14 35. Is the sum of the RRv provided (#30) and the WQv provided (#33a) greater than or equal to the total WQv required (#28)? If Yes, go to question 36. If No, sizing criteria has not been met, so NOI can not be processed. SWPPP preparer must modify design to meet sizing criteria. .34. Provide the sum of the Total RRv provided (#30) and the WQv provided (#33a). Yes No 33a. Indicate the Total WQv provided (i.e. WQv treated) by the SMPs identified in question #33 and Standard SMPs with RRv Capacity identified in question 29. . WQv Provided acre-feet Note: For the standard SMPs with RRv capacity, the WQv provided by each practice = the WQv calculated using the contributing drainage area to the practice - RRv provided by the practice. (See Table 3.5 in Design Manual) 33. Identify the Standard SMPs in Table 1 and, if applicable, the Alternative SMPs in Table 2 that were used to treat the remaining total WQv(=Total WQv Required in 28 - Total RRv Provided in 30). Also, provide in Table 1 and 2 the total impervious area that contributes runoff to each practice selected. Note: Use Tables 1 and 2 to identify the SMPs used on Redevelopment projects. Site discharges directly to tidal waters Reduction of the total CPv is achieved on site 36a. The need to provide channel protection has been waived because: or a fifth order or larger stream. through runoff reduction techniques or infiltration systems. .CFS CFS . Post-developmentPre-Development Total Extreme Flood Control Criteria (Qf) .CFS .CFS Post-developmentPre-Development Total Overbank Flood Control Criteria (Qp) 37. Provide the Overbank Flood (Qp) and Extreme Flood (Qf) control criteria or select waiver (37a), if applicable. 1766089827 Page 12 of 14 39. Use this space to summarize the specific site limitations and justification for not reducing 100% of WQv required(#28). (See question 32a) This space can also be used for other pertinent project information. 38. Has a long term Operation and Maintenance Plan for the post-construction stormwater management practice(s) been developed? If Yes, Identify the entity responsible for the long term Operation and Maintenance Yes No 37a. The need to meet the Qp and Qf criteria has been waived because: Site discharges directly to tidal waters Downstream analysis reveals that the Qp and Qf controls are not required or a fifth order or larger stream. 1310089822 Air Pollution Control Coastal Erosion Hazardous Waste Long Island Wells Mined Land Reclamation Solid Waste Navigable Waters Protection / Article 15 Water Quality Certificate Dam Safety Water Supply Freshwater Wetlands/Article 24 Tidal Wetlands Wild, Scenic and Recreational Rivers Stream Bed or Bank Protection / Article 15 Endangered or Threatened Species(Incidental Take Permit) Individual SPDES SPDES Multi-Sector GP Other None 44. If this NOI is being submitted for the purpose of continuing or transferring coverage under a general permit for stormwater runoff from construction activities, please indicate the former SPDES number assigned. 42. Is this project subject to the requirements of a regulated, traditional land use control MS4? (If No, skip question 43) Yes No 43. Has the "MS4 SWPPP Acceptance" form been signed by the principal executive officer or ranking elected official and submitted along with this NOI? Yes No 41. Does this project require a US Army Corps of Engineers Wetland Permit? If Yes, Indicate Size of Impact. Yes No . Page 13 of 14 40. Identify other DEC permits, existing and new, that are required for this project/facility. 4285089826 Owner/Operator Certification I have read or been advised of the permit conditions and believe that I understand them. I also understand that, under the terms of the permit, there may be reporting requirements. I hereby certify that this document and the corresponding documents were prepared under my direction or supervision. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. I further understand that coverage under the general permit will be identified in the acknowledgment that I will receive as a result of submitting this NOI and can be as long as sixty (60) business days as provided for in the general permit. I also understand that, by submitting this NOI, I am acknowledging that the SWPPP has been developed and will be implemented as the first element of construction, and agreeing to comply with all the terms and conditions of the general permit for which this NOI is being submitted. Owner/Operator Signature Date // Print First Name Print Last Name MI Page 14 of 14 3547089826 Owner/Operator Certification Form SPDES General Permit For Stormwater Discharges From Construction Activity (GP-0--00) Project/Site Name: ________________________________________________________ eNOI Submission Number: _________________________________________________ eNOI Submitted by: Owner/Operator SWPPP Preparer Other Certification Statement - Owner/Operator I have read or been advised of the permit conditions and believe that I understand them. I also understand that, under the terms of the permit, there may be reporting requirements. I hereby certify that this document and the corresponding documents were prepared under my direction or supervision. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. I further understand that coverage under the general permit will be identified in the acknowledgment that I will receive as a result of submitting this NOI and can be as long as sixty (60) business days as provided for in the general permit. I also understand that, by submitting this NOI, I am acknowledging that the SWPPP has been developed and will be implemented as the first element of construction, and agreeing to comply with all the terms and conditions of the general permit for which this NOI is being submitted. Owner/Operator First Name M.I. Last Name ___________________________________________________________ Signature ________________________________ Date Form SWPPP Preparer Certification Form SPDES General Permit for Stormwater Discharges From Construction Activity (GP-0--00 ) Project Site Information Project/Site Name Owner/Operator Information Owner/Operator (Company Name/Private Owner/Municipality Name) Certification Statement – SWPPP Preparer I hereby certify that the Stormwater Pollution Prevention Plan (SWPPP) for this project has been prepared in accordance with the terms and conditions of the GP-0--00. Furthermore, I understand that certifying false, incorrect or inaccurate information is a violation of this permit and the laws of the State of New York and could subject me to criminal, civil and/or administrative proceedings. First name MI Last Name Signature Date Revised:-DQXDU\20 STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX C CONSTRUCTION DURATION INSPECTION CHECKLIST November 2016 Page F.5 New York State Standards and Specifications For Erosion and Sediment Control CONSTRUCTION DURATION INSPECTIONS Page 1 of ______ SITE PLAN/SKETCH _________________________________________ ____________________________________ Inspector (print name) Date of Inspection ________________________________________ ____________________________________ Qualified Inspector (print name) Qualified Inspector Signature The above signed acknowledges that, to the best of his/her knowledge, all information provided on the forms is accurate and complete. November 2016 Page F.6 New York State Standards and Specifications For Erosion and Sediment Control CONSTRUCTION DURATION INSPECTIONS Page 2 of ______ Maintaining Water Quality Yes No NA [ ] [ ] [ ] Is there an increase in turbidity causing a substantial visible contrast to natural conditions at the outfalls? [ ] [ ] [ ] Is there residue from oil and floating substances, visible oil film, or globules or grease at the outfalls? [ ] [ ] [ ] 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, debris and spoils 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 & prevent sediment from entering stream during high flow. 3. Stabilized Construction Access 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? 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. November 2016 Page F.7 New York State Standards and Specifications For Erosion and Sediment Control CONSTRUCTION DURATION INSPECTIONS Page 3 of ______ Runoff Control Practices (continued) 2. Flow Spreader Yes No NA [ ] [ ] [ ] Installed per plan. [ ] [ ] [ ] Constructed on undisturbed soil, not on fill, receiving only clear, non-sediment laden flow. [ ] [ ] [ ] Flow sheets out of level spreader without erosion on downstream edge. 3. Interceptor Dikes and Swales Yes No NA [ ] [ ] [ ] Installed per plan with minimum side slopes 2H:1V or flatter. [ ] [ ] [ ] Stabilized by geotextile fabric, seed, or mulch with no erosion occurring. [ ] [ ] [ ] Sediment-laden runoff directed to sediment trapping structure 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. [ ] [ ] [ ] 4 inches minimum of topsoil has been applied under permanent seedings Sediment Control Practices 1. Silt Fence and Linear Barriers Yes No NA [ ] [ ] [ ] Installed on Contour, 10 feet from toe of slope (not across conveyance channels). [ ] [ ] [ ] Joints constructed by wrapping the two ends together for continuous support. [ ] [ ] [ ] Fabric buried 6 inches minimum. [ ] [ ] [ ] Posts are stable, fabric is tight and without rips or frayed areas. Sediment accumulation is ___% of design capacity. November 2016 Page F.8 New York State Standards and Specifications For Erosion and Sediment Control CONSTRUCTION DURATION INSPECTIONS Page 4 of ______ Sediment Control Practices (continued) 2. Storm Drain Inlet Protection (Use for Stone & Block; Filter Fabric; Curb; or, Excavated; Filter Sock or Manufactured 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 1acre 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 3-foot maximum spacing between posts. [ ] [ ] [ ] Fabric is embedded 1 to 1.5 feet below ground and secured to frame/posts with staples at max 8- inch spacing. [ ] [ ] [ ] Posts are stable, fabric is tight and without rips or frayed areas. [ ] [ ] [ ] Manufactured insert fabric is free of tears and punctures. [ ] [ ] [ ] Filter Sock is not torn or flattened and fill material is contained within the mesh sock. Sediment accumulation ___% of design capacity. 3. 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 trap slopes and disturbed areas are stabilized. Sediment accumulation is ___% of design capacity. 4. 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 basin dewatering pool is dewatering at appropriate rate. Sediment accumulation is ___% of design capacity. 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. All practices shall be maintained in accordance with their respective standards. Construction inspection checklists for post-development stormwater management practices can be found in Appendix F of the New York Stormwater Management Design Manual. November 2016 Page F.9 New York State Standards and Specifications For Erosion and Sediment Control CONSTRUCTION DURATION INSPECTIONS b. Modifications to the SWPPP (To be completed as described below) The Operator shall amend the SWPPP whenever: 1. There is a significant change in design, construction, operation, or maintenance which may have a significant effect on the potential for the discharge of pollutants to the waters of the United States and which has not otherwise been addressed in the SWPPP; or 2. The SWPPP proves to be ineffective in: a. Eliminating or significantly minimizing pollutants from sources identified in the SWPPP and as required by this permit; or b. Achieving the general objectives of controlling pollutants in stormwater discharges from permitted construction activity; and 3. Additionally, the SWPPP shall be amended to identify any new contractor or subcontractor that will implement any measure of the SWPPP. Modification & Reason: ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX D EXISTING AND PROPOSED SITE PLANS (CONSTRUCTION DRAWINGS) SITE SITE:SOUTH MAIN STREET, EXT. GROTON, NY 12777 TM #: 31-1-12.1 LOT AREA: 58.73 AC P.W. GROSSER CONSULTING, INC. 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC NY GROTON II (SOUTH MAIN STREET), LLC SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR PROJECT 4.0 MW AC GROTON, NEW YORK ENGINEER: P.W. GROSSER CONSULTING, INC. 630 JOHNSON AVENUE, SUITE 7, BOHEMIA, NY 11716 TEL: (631) 589-6353 FAX: (631) 589-8705 TOWN: TOWN OF GROTON 108 E CORTLAND STREET GROTON, NY 13073 COUNTY: TOMPKINS COUNTY 320 N TIOGA STREET ITHACA, NY 14850 TEL (607) 274-5431 PW G C F I L E N A M E : J : \ P r o j e c t s A - D \ D R S \ 2 3 1 4 - S o u t h M a i n S t r e e t S o u t h P a r c e l \ C A D \ S o u t h M a i n S t r e e t S o u t h P a r c e l 0 7 . 2 6 . 2 4 . d w g ( C O V E R ) PL O T D A T E / T I M E : A u g 2 6 , 2 0 2 4 - 1 1 : 4 1 a m B y : j a c e v e d o PLANS PROJECT CONTACTS MUNICIPAL CONTACTS SITE INFORMATION SHEET INDEX CLIENT INFORMATION CLIENT: NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 COVER SHEET 1 OF 12 VICINITY MAP SCALE: 1"=2500' FOR PERMITTING PURPOSES ONLY NOT FOR CONSTRUCTION NO. SHEET TITLE 1.COVER 2.C-001 GENERAL NOTES AND LEGEND INFORMATION 3.C-100 EXISTING CONDITIONS PLAN 4.C-101 CONCEPTUAL SITE LAYOUT PLAN 5.C-200 CONCEPTUAL GRADING AND DRAINAGE PLAN 6.C-201 CONCEPTUAL EROSION AND SED. CONTROL PLAN 7.C-500 CONCEPTUAL LANDSCAPING PLAN 8.C-501 SOIL IMPACT MAP 9.C-600 GRADING PROFILE VIEWS 10.C-601 SITE DETAILS 11.C-602 EROSION AND SED. CONTROL DETAILS 12.C-603 DRAINAGE DETAILS ISSUED FOR: TOWN COMMENT RESPONSE ISSUE DATE: 07/22/2024 LAST REVISED: 07/22/2024 SCALE: 1" = 2500' 0 2500 5000 SOURCE: NEW YORK STATE GIS RESOURCES RPV 11/15/23 MTS AS NOTED INFORMATION AND LEGEND GENERAL NOTES C-001 2 BASEMAP NOTES 1.EXISTING CONDITIONS BASEMAP INFORMATION IS BASED ON LIDAR FROM NYS GIS DATA DOWNLOADED ON 11-15-23. 2.PROPOSED SOLAR DEVELOPMENT LAYOUT INFORMATION IS BASED ON CONCEPTUAL LAYOUT PLAN DEVELOPED BY MONGAUP RIVER SOLAR, SHEET TITLED "LAYOUT TECHNICAL REVIEW" AT 1":200' SCALE, DATED 04-05-24. ALL BASEMAP INFORMATION IS TO BE CONSIDERED APPROXIMATE AND IS TO BE FIELD VERIFIED BY A NEW YORK STATE LICENSED SURVEYOR PRIOR TO FINALIZING DESIGN. 3.LOT LINES BASED ON INFORMATION PROVIDED FROM NYS GIS; DOWNLOADED ON 11-15-23. WETLANDS NOTES 1.EXISTING STREAM AND WETLANDS INFORMATION IS BASED ON NYSDEC ENVIRONMENTAL RESOURCE MAPPER PUBLICLY AVAILABLE DATA AND WETLANDS DELINEATION PERFORMED BERGMANN DATED 08-29-22, DOWNLOADED ON 11-15-23. 2.ACTUAL LIMITS OF ALL STREAMS, WETLANDS AND WETLAND ADJACENT AREAS ARE TO BE FIELD VERIFIED VIA SURVEY AND WILL BE MARKED IN THE FIELD BY SURVEY MARKERS, RIBBON, FLAGS, OR EQUIVALENT PRIOR TO START OF CONSTRUCTION. 3.EFFORTS SHALL BE MADE TO MINIMIZE DISTURBANCE TO ANY STATE OR FEDERALLY REGULATED WETLANDS. UNNECESSARY REMOVAL OF VEGETATION OR DEGRADATION ALONG STREAM BANKS IS PROHIBITED. 4.ONLY HAND CLEARING SHALL BE ALLOWED IN WETLAND AREAS AS NECESSARY. MACHINE CLEARING IS PROHIBITED WITHIN WETLAND AREAS. 5.IF TEMPORARY ACCESS IS REQUIRED IN WETLAND AREAS, TEMPORARY TIMBER MATS WILL BE USED TO MINIMIZE DISTURBANCE TO UNDERLYING WETLAND SOILS. 6.STAGING OF ANY CONSTRUCTION MATERIALS OR EQUIPMENT IS PROHIBITED IN WETLAND AREAS. 7.ANY WETLAND DISTURBANCE IS TO BE RESTORED WITH APPROPRIATE WETLAND SEED MIX IN ACCORDANCE WITH NYSDOT ITEM 203.01920007 OR MOST CURRENT NYSDEC REQUIREMENTS RELATED TO WETLAND RESTORATION. COMPONENT OF THE SEED MIX MAY BE SUBSTITUTED WITH THE ENGINEER'S APPROVAL. GENERAL NOTES 1.THE INFORMATION IN THIS DRAWING SET IS CONCEPTUAL AND IS INTENDED FOR TOWN BOARD PLANNING AND DISCUSSION PURPOSES ONLY. THIS DRAWING SET IS NOT TO BE USED FOR CONSTRUCTION OR BIDDING PURPOSES. 2.CONTRACTOR WILL BE RESPONSIBLE TO FIELD VERIFY ALL EXISTING CONDITIONS AND SITE FEATURES PRIOR TO CONSTRUCTION. ANY DISCREPANCIES FOUND SHALL BE DOCUMENTED IN WRITING AND SUBMITTED TO THE ENGINEER FOR REVIEW PRIOR TO CONSTRUCTION. 3.CONTRACTOR WILL BE RESPONSIBLE TO LOCATE AND MARK OUT ALL EXISTING UTILITIES, INCLUDING THOSE UNDERGROUND, PRIOR TO CONSTRUCTION. ANY POTENTIAL INTERFERENCES WITH PROPOSED FEATURES SHALL BE DOCUMENTED IN WRITING AND SUBMITTED TO THE ENGINEER FOR REVIEW PRIOR TO CONSTRUCTION. 4.THE CONTRACTOR SHALL PROTECT ALL EXISTING SITE FEATURES AND UTILITIES THAT ARE NOT DESIGNATED FOR REMOVAL. ANY SITE FEATURE, UTILITY, STREET APPURTENANCE, OR OTHER ITEM THIS IS DAMAGED BY THE CONTRACTOR OR ITS SUBCONTRACTORS DURING CONSTRUCTION SHALL BE REPAIRED OR REPLACED IN-KIND BY THE CONTRACTOR, AS DETERMINED BY THE OWNER OR ENGINEER, AT NO ADDITIONAL COST TO THE OWNER. 5.CONTRACTOR WILL BE REQUIRED TO OBTAIN ANY ADDTIONAL PERMITS REQUIRED TO DO THE WORK OR DELIVER MATERIALS TO THE SITE THAT ARE NOT PROVIDED BY THE OWNER OR ENGINEER. ALL WORK WITHIN AN EXISTING RIGHT-OF-WAY WILL REQUIRE PERMITTING WITH RESPECTIVE OWNER, STATE OR COUNTY AGENCY, TOWN DEPARTMENT OF PUBLIC WORKS, OR HIGHWAY DEPARTMENT AS APPLICABLE. SURVEY NOTES EROSION AND SEDIMENT CONTROL NOTES 1.ALL EROSION CONTROL MEASURES SHALL BE INSTALLED IN ACCORDANCE WITH NEW YORK STANDARDS AND SPECIFICATIONS FOR EROSION AND SEDIMENT CONTROL (BLUE BOOK), AND LOCAL GOVERNING SOIL AND WATER CONSERVATION DISTRICT STANDARDS. THE EROSION AND SEDIMENT CONTROLS SHOWN ON THESE PLANS AND AS DESCRIBED IN THE PROJECT SWPPP REPRESENT THE MINIMUM REQUIREMENTS AND ADDITIONAL EROSION AND SEDIMENT CONTROLS MAY BE REQUIRED BASED ON CONDITIONS ENCOUNTERED IN THE FIELD. CONTRACTOR WILL BE RESPONSIBLE FOR ENSURING PROJECT REMAINS IN COMPLIANCE WITH ALL APPLICABLE REGULATIONS AND STANDARDS PERTAINING TO EROSION AND SEDIMENT CONTROLS. 2.EROSION AND SEDIMENT CONTROLS WILL BE INSTALLED PRIOR TO ANY EARTH DISTURBING ACTIVITIES AND WILL BE MAINTAINED FOR THE DURATION OF THE WORK, INCLUDING TEMPORARY CONSTRUCTION SWALES AND DETENTION POND WITH OUTLET STRUCTURE AND ROCK OUTLET PROTECTION. 3.CONTRACTOR WILL UTILIZE MEANS, METHODS AND SEQUENCING THAT MINIMIZE THE AMOUNT OF EARTH DISTURBANCE TO THE EXTENT PRACTICAL, AND NOT TO EXCEED MORE THAN 5.0 ACRES AT ANY GIVEN TIME. 4.CONTRACTOR SHALL PROTECT ALL ON-SITE, ADJACENT AND/OR DOWNSTREAM STORM/SANITARY SEWERS, AND/OR OTHER WATER COURSES FROM CONTAMINATION BY WATER BORNE SILTS, SEDIMENTS, FUELS, SOLVENTS, LUBRICANTS OR OTHER POLLUTANTS ORIGINATING FROM THE SITE OR WORK BEING PERFORMED. 5.CONTRACTOR WILL FOLLOW GOOD HOUSEKEEPING AND SPILL CONTROL PRACTICES DURING SITE ACTIVITIES TO MINIMIZE STORMWATER CONTAMINATION FROM CONCRETE, PETROLEUM PRODUCTS AND WASTE MATERIALS. NO WET OR FRESH CONCRETE, LEACHATE OR WASHINGS FROM EQUIPMENT SHALL BE ALLOWED TO MIGRATE INTO EXISTING STORM/SANITARY SEWERS, DITCHES OR OTHER WATERS OF NEW YORK STATE. 6.ALL EXCAVATED OR IMPORTED MATERIAL STOCKPILES SHALL BE SUITABLY STABILIZED AND SURROUNDED BY SILT FENCE TO MINIMIZE POTENTIAL FOR SEDIMENT LADEN RUNOFF DISCHARGING TO DOWNSTREAM AREAS OR DRAINAGE FEATURES. DISTURBED SOILS OR STOCKPILES THAT ARE TO BE EXPOSED FOR MORE THAN 14 CALENDAR DAYS SHALL BE TEMPORARY STABILIZED WITH SEED MIX CONSISTING OF RYEGRASS (ANNUAL OR PERENNIAL) APPLIED AT 30 LBS PER ACRES (0.7 LBS PER 1,000 SQ. FT.), OR CERTIFIED "AROOSTOOK" WINTER RYE (CEREAL RYE) APPLIED AT 100 LBS PER ACRES (2.5 LBS PER 1,000 SQ. FT.) IF SEEDING IN OCTOBER OR NOVEMBER 7.CONTRACTOR MATERIAL AND EQUIPMENT STAGING AREAS AND CONSTRUCTION ENTRANCE LOCATIONS SHALL BE COORDINATED WITH THE OWNER PRIOR TO START OF CONSTRUCTION. CONSTRUCTION ENTRANCES AS SHOWN ON THE PLANS MAY BE MODIFIED BY THE CONTRACTOR WITH PRIOR APPROVAL FROM THE OWNER AND ENGINEER. 8.ALL EXISTING OR NEWLY INSTALLED CATCH BASINS/DRAINAGE INLETS SHALL HAVE DROP INLET PROTECTION INSTALLED THROUGHOUT THE DURATION OF CONSTRUCTION TO PREVENT SEDIMENTATION FROM ENTERING THE STORM SYSTEM. CONTRACTOR SHALL MAINTAIN OR REPLACE DROP INLET PROTECTION WHEN SIGNIFICANT SEDIMENT BUILDUP IS OBSERVED OR IS NOT FUNCTIONING CORRECTLY. 9.CONTRACTOR SHALL TAKE ALL NECESSARY AND APPROPRIATE MEASURES TO MITIGATE OR PREVENT FUGITIVE DUST THROUGHOUT THE DURATION OF CONSTRUCTION. CONTRACTOR SHALL ADHERE TO METHODS AS DESCRIBED IN THE PROJECT SWPPP. 10.COMPLETED WORK THAT IS NOT SUBJECT TO FURTHER EARTHWORK OR CONSTRUCTION ACTIVITIES SHALL BE PERMANENTLY HYDRO SEEDED IN EARLY SPRING OF FALL. GRADING NOTES 1.ALL SURVEY AND SITE STAKEOUTS FOR PROPOSED FEATURES SHALL BE PERFORMED BY A NEW YORK STATE LICENSED SURVEYOR. 2.CONTRACTOR WILL BE RESPONSIBLE TO LOCATE, MARK AND PROTECT ALL EXISTING SURVEY, PROPERTY, AND RIGHT-OF-WAY MARKERS FOR THE SITE. ANY MARKERS, PINS, MONUMENTS OR OTHER FEATURES DEFINING PROPERTY LIMITS THAT MAY BE DISTURBED BY CONSTRUCTION ACTIVITIES SHALL BE PROPERLY TIED AND RESET BY A NEW YORK STATE LICENSED SURVEYOR UPON COMPLETION OF THE WORK. 3.THE HORIZONTAL DATUM IS NAD83 NEW YORK STATE PLANE COORDINATE SYSTEM, (US FT). 4.THE VERTICAL DATUM IS NAVD88. TOPOGRAPHIC FEATURES 1320 DRAINAGE ELEMENTS SITE FEATURES PP 1.CONCEPTUAL GRADING DESIGN SHOWN IN THESE PLANS IS BASED ON NYS LIDAR INFORMATION PROVIDED TO PWGC BY PACKER ASSOCIATES, INC. AND IS TO BE CONSIDERED APPROXIMATE AND CONCEPTUAL, AND FOR DISCUSSION PURPOSES ONLY. GRADING DESIGN IS SUBJECT TO CHANGE BASED ON FURTHER SITE INVESTIGATIONS AND ANALYSIS. 2.ADDITIONAL SITE GEOTECHNICAL ANALYSIS IS REQUIRED TO VERIFY GRADING CONSTRAINTS AND FEASIBILITY. 3.GRADING SHALL PERFORMED IN ACCORDANCE WITH ALL APPLICABLE STATE AND OSHA REQUIREMENTS. THE CONTRACTOR SHALL CONFORM TO THE REQUIREMENTS OF OSHA, AND ANY OTHER AGENCY HAVING JURISDICTION WITH REGARD TO SAFETY PRECAUTIONS WITH TRENCHING OR EXCAVATION AND GRADING OPERATIONS. THE REQUIREMENTS SET FORTH HEREIN ARE INTENDED TO SUPPLEMENT REQUIREMENTS ESTABLISHED BY THESE AGENCIES. IN THE CASE OF A CONFLICT BETWEEN REQUIREMENTS OF OTHER JURISDICTIONAL AGENCIES AND THESE DOCUMENTS, THE MORE STRINGENT REQUIREMENT ON THE CONTRACTOR SHALL APPLY. 4.VOIDS LEFT BY UTILITY OR STRUCTURE EXCAVATIONS, OR GRUBBING OPERATIONS SHALL BE BACKFILLED AND PROPERLY COMPACTED WITH STRUCTURAL FILL (NYSDOT ITEM 304.12 OR EQUIVALENT) IN AREAS UNDER AND WITHIN 5 FEET HORIZONTALLY OF ALL STRUCTURES, AND PAVEMENTS. IN GRASSED AREAS, VOIDS LEFT SHALL BE FILLED AND PROPERLY COMPACTED WITH SUITABLE ON-SITE BACKFILL AS APPROVED BY THE ENGINEER. 5.THE CONTRACTOR SHALL DEWATER ALL EXCAVATIONS TO PREVENT THE INTRODUCTION OF GROUNDWATER OR PONDED WATER INTO THE TRENCHES/EXCAVATIONS AND WILL PROVIDE ALL EQUIPMENT NECESSARY TO MAINTAIN THE WATER AS NECESSARY. DEWATERING SHALL BE PERFORMED IN ACCORDANCE WITH THE PROJECT SWPPP. 6.UNLESS OTHERWISE DIRECTED, THE CONTRACTOR SHALL PLACE AT MINIMUM 6 INCHES OF CLEAN TOPSOIL IN ALL DISTURBED AND NEWLY GRADED AREAS PRIOR TO SEEDING. TM # :31.-1-12.1 EXISTING ZONING:RURAL AGRICULTURAL LOT AREA: 58.73 ACRES PROPOSED USE:LARGE SCALE SOLAR REQUIRED PROPOSED LOT SIZE 5 AC.58.73 AC. MAX. LOT COVERAGE 75%30% MAX. HEIGHT 20' 15' PROPERTY SETBACK (FRONT ℄ ROAD)150'835' PROPERTY SETBACK (SIDE/BACK)75'75' ZONING ANALYSIS EROSION AND SEDIMENT CONTROL DC LEGEND FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 SOLAR MODULE NOTES MANUFACTURER:HANWHA MODEL:Q.PEAK DUO XL-G11.3 / BFG MODULE OUTPUT POWER:585 WP STRING SIZE:24 NUMBER OF STRINGS:350 MODULE QUANTITY:8,400 PV SYSTEM OUTPUT 4,914.00 KWP DC NOTES: 1.SOLAR PANELS TO BE INSTALLED BY A QUALIFIED SOLAR INSTALLER AND SHALL BE BUILT, OPERATED AND MAINTAINED TO ACCEPTABLE INDUSTRY STANDARDS INCLUDING BUT NOT LIMITED TO THE MOST RECENT, APPLICABLE STANDARDS OF THE INSTITUTE OF ELECTRICAL AND ELECTRONIC ENGINEERS ("IEEE") AND THE AMERICAN NATIONAL STANDARDS INSTITUTE. EXISTING CONCEPTUAL NOTES EARTHWORK CALCULATIONS TOTAL CUT: 66,086 CY TOTAL FILL: 66,313 CY NET CUT/FILL: -227 CY NOTE: 1.NO SHRINK/SWELL MULTIPLIER WAS APPLIED TO THE TOTAL CUT AND FILL VALUES. JOSEPH C MILLER TM#: 31.-1-12.212 JAMES R YOUNG TM#: 26.-1-25.22 JOSEPH C MILLER TM#: 31.-1-12.211 GENEVIEVE VANBENSCHOTEN TM#: 31.-1-13.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.4 SAMUEL P SWEENEY III 31.-1-19.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.6 SAMUEL P SWEENEY III 31.-1-19.51 JOHN YOUNG TM#: 31.-1-12.1 F&M LAND LLC TM#: 26.-1-24.1 S O U T H M A I N S T R E E T E X T . FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 ROBERT J COSTA TM#: 31.-1-9 DARCY L WYLLIE TM#: 31.-1-20 JOSEPH C MILLER TM#: 31.-1-12.22 APPROXIMATE LIMITS OF DISTURBANCE, ±21.38 AC. APPROXIMATE LIMITS OF TREE CUTTING, ±6.13 AC. PROPERTY LINE EXISTING OVERHEAD ELECTRIC EXISTING STREAM EXISTING FARMLAND EXISTING WOODED AREA POTENTIAL WETLANDS, TYP. EXISTING NATIONAL WETLANDS BgC BtF PhB HdC PhB BgC HdC HdD Ab HdD LaB LaB EXISTING SOIL TYPE BOUNDARY, TYP. SOIL CLASSIFICATION, TYP. PhB BgC RPV 11/15/23 MTS 1" = 100' PLAN CONDITIONS EXISTING C-100 3 SCALE: 1" = 100' 0 100 200 FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 JOSEPH C MILLER TM#: 31.-1-12.212 JAMES R YOUNG TM#: 26.-1-25.22 JOSEPH C MILLER TM#: 31.-1-12.211 GENEVIEVE VANBENSCHOTEN TM#: 31.-1-13.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.4 SAMUEL P SWEENEY III 31.-1-19.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.6 SAMUEL P SWEENEY III 31.-1-19.51 JOHN YOUNG TM#: 31.-1-12.1 F&M LAND LLC TM#: 26.-1-24.1 S O U T H M A I N S T R E E T E X T . FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 ROBERT J COSTA TM#: 31.-1-9 DARCY L WYLLIE TM#: 31.-1-20 75.0' 75.0' 75.0' 150.0' 21.0' 75.0' JOSEPH C MILLER TM#: 31.-1-12.22 835.0' 314'-6" (MIN 50' FROM INVERTER PAD) 50' SETBACK CUSTOMER PROVIDED POLE: CUSTOMER AC MANUAL DISCONNECT SWITCH GANG OPERATED WITH VISIBLE BREAK CUSTOMER CUT-OUT FUSES PCC (POINT OF COMMON COUPLING) CUSTOMER PROVIDED POLE: UTILITY PRIMARY METER 4.4 MVA AC INVERTER PAD, SEE DETAIL SHEET C-600 CUSTOMER TRANSFORMER 4.4 MVA PANEL MANUFACTURER: HANWHA NUMBER OF MODULES: 8,400 MODULE MODEL Q.PEAK DUO XL-G11.3 / BFG WP 585 INVERTER MANUFACTURER: SUNGROW MODEL: SG 4400 UD-MV NUMBER OF INVERTERS: 1 SIZE OF EACH INVERTER: 4,400 KVA CONNECTION CABLE SECTION: 3 - 1/C # 2/0 AWG WITH 100% CONCENTRIC NEUTRAL 35 KV UNDERGROUND LENGTH: 1,334.03 FT/PHASE CABLE 34.5 KV 3PH OVERHEAD: COMPANY NYSEG SUBSTATION PERUVILLE TAP NUMBER OF PHASES 3 CIRCUIT NAME 4303701 UTILITY PROVIDED POLE: UTILITY RECLOSER UTILITY RECLOSER AUX. TRANSFORMER AAAC/ACSR 4 -1 1/C #250 KCMIL OVERHEAD LENGTH 310.30 FT/PHASE CABLE PRESUMED POI LOCATION PROPOSED SEEDING AREA. SEE LANDSCAPING PLAN SHEET C-500 PROPOSED 8' TALL DEER FENCE, TYP. SEE DETAIL SHEET C-600 PROPOSED CRUSHED STONE ACCESS ROAD SEE DETAIL SHEET C-600 PERMANENT STREAM CROSSING APPROX. LOCATION OF PROPOSED RAIN GARDEN, TYP. 7, SEE GRADING AND DRAINAGE PLAN SHEET C-200 ZONING SETBACK, TYP. NOTE: IT IS NECESSARY TO REQUEST THE UTILITY TO UPGRADE EXISTING 1PH LINE TO 3PH LINE AND EXTEND THE LINE TO THE NEW POI. PROPOSED APPROXIMATE LOCATION OF STAGING AREA PROPOSED CYPRESS LEYLAND VISUAL SCREENING, TYP. 21 CUSTOMER PROVIDED RISER POLE: CUSTOMER RECLOSURE PROPOSED RAIN GARDEN PROPOSED CULVERTS AND STORM PIPE RPV 11/15/23 MTS 1" = 100' PLAN SITE LAYOUT CONCEPTUAL C-101 4 Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 SYSTEM SUMMARY MODULE: MANUFACTURER: HANWHA MODEL: Q.PEAK DUO XL-G11.3/BFG MODULE OUTPUT POWER: 585 WP STRING SIZE: 24 NUMBER OF STRINGS: 350 MODULE QUANTITY: 8,400 PV SYSTEM OUTPUT: 4,914.00 KWP DC COMBINER BOX: CB QTY/INPUTS (QTY/INP): 25 CBs (6 INPUTS) 5 CBs (5 INPUTS) INVERTER: MANUFACTURER: SUNGROW MODEL: SG 4400 UD-MV QUANTITY/RATING: 1 / 4,400 KVA PV SYSTEM OUTPUT: 4,400 KVA AC DC SYSTEM VOLTAGE: 1,500 V MV INTERCONNECTION: TRANSFORMER QTY/RATING: 1 / 4,400 KVA INTERCON. VOLTAGE: 34.5 KV RACKING: MANUFACTURER: TBD CONFIGURATION: 2 MODULE POTRAIT TILT: 25° AZIMUTH: 180° SCALE: 1" = 100' 0 100 200 JOSEPH C MILLER TM#: 31.-1-12.212 JAMES R YOUNG TM#: 26.-1-25.22 JOSEPH C MILLER TM#: 31.-1-12.211 GENEVIEVE VANBENSCHOTEN TM#: 31.-1-13.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.4 SAMUEL P SWEENEY III 31.-1-19.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.6 SAMUEL P SWEENEY III 31.-1-19.51 JOHN YOUNG TM#: 31.-1-12.1 F&M LAND LLC TM#: 26.-1-24.1 S O U T H M A I N S T R E E T E X T . FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 ROBERT J COSTA TM#: 31.-1-9 DARCY L WYLLIE TM#: 31.-1-20 JOSEPH C MILLER TM#: 31.-1-12.22 11 0 0 1 0 6 0 1050 1 0 7 0 1 0 8 0 10 9 0 110 0 111 0 11 2 0 1120 1100 111 0 109 0 10 8 0 10 7 0 1 0 6 0 1 0 5 0 1 0 5 0 1070 1080 1090 1100 1110 1120 1130 110 0 10 5 0 1 0 9 0 11 0 0 1090 1080 1070 1 0 8 0 1080 1 0 5 0 1060 10 7 0 10 5 0 PROPOSED GRADING PROPOSED RAIN GARDEN, 1,975 SF x 2 FT DEEP, MIN. 33% SLOPE ON ALL SIDES, APPROX. 0.058 AC.-FT PROPOSED WATER BARS OR EQUIVALENT, TYP. EVERY 125' SEE DETAIL SHEET C-601 PROPOSED RAIN GARDEN, 2,800 SF x 2 FT DEEP, MIN. 33% SLOPE ON ALL SIDES, APPROX. 0.079 AC.-FT PROPOSED RAIN GARDEN, 3100 SF x 4 FT DEEP, MIN. 33% SLOPE ON ALL SIDES, APPROX. 0.152 AC.-FT PROPOSED RAIN GARDEN, 10 FT WIDE x 1 FT DEEP, MIN. 33% SLOPE ON ALL SIDES, TYP. 3 PROFILE 1, SEE DETAIL SHEET C-600 PROFILE 2, SEE DETAIL SHEET C-600 PROFILE 3, SEE DETAIL SHEET C-600 PROPOSED RAIN GARDEN, 1,295 SF x 2 FT DEEP, MIN. 33% SLOPE ON ALL SIDES, APPROX. 0.034 AC.-FT 1 0 8 0 10 9 0 1 1 0 0 1 0 7 0 1060 1 0 5 0 PROPOSED FRENCH DRAIN SEE DETAIL SHEET C-603 PROPOSED CULVERT, SEE DETAIL SHEET C-603 PROPOSED RAIN GARDEN PROPOSED CULVERTS AND STORM PIPE RPV 11/15/23 MTS 1" = 100' DRAINAGE PLAN GRADING AND CONCEPTUAL C-200 5 FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 SCALE: 1" = 100' 0 100 200 NOTE: THE PROPOSED GRADING SHOWN HAS A MAX CUT OF 14.6' BGS. BEDROCK HAS BEEN ENCOUNTERED IN ONE TEST PIT PERFORMED WITHIN THE PROJECT AREA. ALL TEST PITS WERE COMPLETED 10' BGS. NO CUT HAS BEEN PROPOSED IN LOCATIONS WITH SHALLOW BEDROCK. JOSEPH C MILLER TM#: 31.-1-12.212 JAMES R YOUNG TM#: 26.-1-25.22 JOSEPH C MILLER TM#: 31.-1-12.211 GENEVIEVE VANBENSCHOTEN TM#: 31.-1-13.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.4 SAMUEL P SWEENEY III 31.-1-19.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.6 SAMUEL P SWEENEY III 31.-1-19.51 JOHN YOUNG TM#: 31.-1-12.1 F&M LAND LLC TM#: 26.-1-24.1 S O U T H M A I N S T R E E T E X T . DC FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 ROBERT J COSTA TM#: 31.-1-9 DARCY L WYLLIE TM#: 31.-1-20 JOSEPH C MILLER TM#: 31.-1-12.22 IMPLEMENT DUST CONTROL AS NECESSARY LAND GRADING ACTIVITIES, TYP. APPROXIMATE LOCATION OF STOCKPILES, TYP. SEE DETAIL SHEET C-601 PROPOSED STABILIZED CONSTRUCTION ENTRANCE, SEE DETAIL SHEET C-601 PROPOSED SILT FENCING SEE DETAIL SHEET C-601 PROPOSED RAIN GARDEN, TYP. UNDISTURBED RIPARIAN BUFFER (NATIVE VEGETATION) MIN 40' SETBACK FROM WATERCOURSE PROPOSED WATER BAR, OR EQUIVALENT TYP EVERY 125' SEE DETAIL SHEET C-601 RPV 11/15/23 MTS 1" = 100' CONTROL PLAN EROSION AND SED. CONCEPUTAL C-201 6 FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 SCALE: 1" = 100' 0 100 200 JOSEPH C MILLER TM#: 31.-1-12.212 JAMES R YOUNG TM#: 26.-1-25.22 JOSEPH C MILLER TM#: 31.-1-12.211 GENEVIEVE VANBENSCHOTEN TM#: 31.-1-13.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.4 SAMUEL P SWEENEY III 31.-1-19.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.6 SAMUEL P SWEENEY III 31.-1-19.51 JOHN YOUNG TM#: 31.-1-12.1 F&M LAND LLC TM#: 26.-1-24.1 S O U T H M A I N S T R E E T E X T . FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 ROBERT J COSTA TM#: 31.-1-9 DARCY L WYLLIE TM#: 31.-1-20 JOSEPH C MILLER TM#: 31.-1-12.22 PROPOSED VEGETATION VISUAL SCREENING TYP. 21, SEE PLANTING DETAIL SHEET C-601 PROPOSED SEEDING AREA, ±20.66 AC. 3' SOLAR POLLINATOR MIX, SEE SEEDING SPECIFICATION SHEET C-601 RAIN GARDENS TO BE SEEDED WITH ERNST RAIN GARDEN MIX OR ENGINEER APPROVED EQUIVALENT.RPV 11/15/23 MTS 1" = 100' PLAN LANDSCAPING CONCEPTUAL C-500 7 FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 SCALE: 1" = 100' 0 100 200 JOSEPH C MILLER TM#: 31.-1-12.212 JAMES R YOUNG TM#: 26.-1-25.22 JOSEPH C MILLER TM#: 31.-1-12.211 GENEVIEVE VANBENSCHOTEN TM#: 31.-1-13.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.4 SAMUEL P SWEENEY III 31.-1-19.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.6 SAMUEL P SWEENEY III 31.-1-19.51 JOHN YOUNG TM#: 31.-1-12.1 F&M LAND LLC TM#: 26.-1-24.1 S O U T H M A I N S T R E E T E X T . FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 ROBERT J COSTA TM#: 31.-1-9 DARCY L WYLLIE TM#: 31.-1-20 JOSEPH C MILLER TM#: 31.-1-12.22 CUSTOMER PROVIDED POLE: CUSTOMER AC MANUAL DISCONNECT SWITCH GANG OPERATED WITH VISIBLE BREAK CUSTOMER CUT-OUT FUSES PCC (POINT OF COMMON COUPLING) CUSTOMER PROVIDED POLE: UTILITY PRIMARY METER 4.4 MVA AC INVERTER PAD, SEE DETAIL SHEET C-600 CUSTOMER TRANSFORMER 4.4 MVA INVERTER MANUFACTURER: SUNGROW MODEL: SG 4400 UD-MV NUMBER OF INVERTERS: 1 SIZE OF EACH INVERTER: 4,400 KVA CONNECTION CABLE SECTION: 3 - 1/C # 2/0 AWG WITH 100% CONCENTRIC NEUTRAL 35 KV UNDERGROUND LENGTH: 1,334.03 FT/PHASE CABLE 34.5 KV 3PH OVERHEAD: COMPANY NYSEG SUBSTATION PERUVILLE TAP NUMBER OF PHASES 3 CIRCUIT NAME 4303701 UTILITY PROVIDED POLE: UTILITY RECLOSER UTILITY RECLOSER AUX. TRANSFORMER AAAC/ACSR 4 -1 1/C #250 KCMIL OVERHEAD LENGTH 310.30 FT/PHASE CABLE PRESUMED POI LOCATION PROPOSED 8' TALL DEER FENCE, TYP. SEE DETAIL SHEET C-600 PROPOSED CRUSHED STONE ACCESS ROAD SEE DETAIL SHEET C-600 PERMANENT STREAM CROSSING APPROX. LOCATION OF PROPOSED RAIN GARDEN, SEE GRADING AND DRAINAGE PLAN SHEET C-200 ZONING SETBACK, TYP. NOTE: IT IS NECESSARY TO REQUEST THE UTILITY TO UPGRADE EXISTING 1PH LINE TO 3PH LINE AND EXTEND THE LINE TO THE NEW POI. PROPOSED APPROXIMATE LOCATION OF STAGING AREA PROPOSED CYPRESS LEYLAND VISUAL SCREENING, TYP. 21 CUSTOMER PROVIDED RISER POLE: CUSTOMER RECLOSURE RPV 11/15/23 MTS 1" = 100' IMPACT MAP PRIME SOILS C-501 8 Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 SCALE: 1" = 100' 0 100 200 SOIL GROUPS TABLE SOIL GROUP NUMBER AREA SOIL TYPE 1 0 AC. SOIL TYPE 2 3.78± AC. SOIL TYPE 3 0.9± AC. SOIL TYPE 4 0 AC. FARMLAND DISTURBANCE TABLE FARMLAND CLASSIFICATION EARTHWORK DISTURBANCE AREA PERMANENT DISTURBANCE AREA PROJECT FOOTPRINT AREA PRIME FARMLAND 3.78 AC.3.78 AC.3.78 AC. PRIME FARMLAND IF DRAINED 0 AC.0 AC.0 AC. NOT PRIME FARMLAND 16.7 AC.16.7 AC.16.7 AC. FARMLAND OF STATEWIDE IMPORTANCE 0.90 AC.0.90 AC.0.90 AC. TOTAL DISTUBRANCE 21.38 AC.21.38 AC.21.38 AC. Landscaping Plan SOIL TYPE 2, PRIME FARMLAND SOIL TYPE 3, FARMLAND OF STATEWIDE IMPORTANCE EXISTING GRADE PROPOSED GRADE EXISTING GRADE PROPOSED GRADE EXISTING GRADE PROPOSED GRADE EXISTING GRADE PROPOSED GRADE RPV 11/15/23 MTS 1" = 100' VIEWS GRADING PROFILE C-600 9 FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 SCALE: 1" = 40' 0 40 80 PROFILE 1 SCALE: 1" = 40' 0 40 80 PROFILE 2 SCALE: 1" = 40' 0 40 80 PROFILE 3 SCALE: 1" = 40' 0 40 80 PROFILE 4 RPV 11/15/23 MTS AS NOTED SITE DETAILS C-601 10 8-FT DEER FENCE DETAIL NOT TO SCALE 8-FT DEER FENCE GATE DETAIL NOT TO SCALE 0.6' TYP. 1' 3' MIN. SELECT BACKFILL MATERIAL ELECTRIC CONDUIT OR CABLE DETECTABLE WARNING TAPE SAW CUT IF PAVEMENT RESTORE GRADE TO MATCH EXISTING, OR PER SITE PLAN COMPACTED OR UNDISTURBED SOIL1.1 ' MIN. GRAVEL ACCESS ROAD DETAIL NOT TO SCALE VA R I A B L E I N F U N C T I O N O F T H E P E N D I N G O F T H E T E R R A I N MA X 2 0 ' TYPICAL RACK SECTION DETAIL NOT TO SCALE SLEWING DRIVE MOUNTING POST NOTE(S): 1.PANEL HEIGHT 7'-6" 2.PANEL WIDTH 3'-9" 3.PROPOSED PANEL MANUFACTURER: HELIENE, MODEL 144HC M10 TPC 575 WP OR APPROVED EQUAL MECHANICAL SPECIFICATION Format Weight Front Cover Back Cover Frame Cell Junction box Cable Connector 2416 mm × 1134 mm × 35 mm (including frame) 34.4 kg 2 mm thermally pre-stressed glass with anti-reflection technology 2 mm semi-tempered glass Anodised aluminium 6 × 26 monocrystalline Q.ANTUM solar half cells 53-101 mm × 32-60 mm × 15-18 mm Protection class IP67, with bypass diodes 4 mm² Solar cable; (+) ≥ 700 mm, (−) ≥ 350 mm Stäubli MC4-Evo2, Hanwha Q CELLS HQC4; IP68 35 mm ≥ 350 mm Label 4 × Mounting slots (DETAIL A) 16 mm DETAIL A 21 mm 8.5 mm DETAIL B 22 mm 7 mm 10 mm 1090 mm Frame 1134 mm 1308 mm 2416 mm 400 mm 790 mm 4 × Grounding holes, Ø 4.5 mm 8 × Mounting slots system Tracker (DETAIL B) ≥ 700 mm 1092 mm 554 mm 8 × Drainage holes (3 × 6 mm) FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N 01 - TRANSFORMER 02 - INVERTER 03 - REINFORCED CONCRETE SLAB PSI 3500 04 - AUXILIARY EQUIPMENT PAD 8" CONCRETE SLAB WITH TWO LAYERS OF 6"x6" 10/10 WELDED WIRE MESH WWM MIN 24" OF BACKFILL CONCRETE EQUIPMENT PAD DETAIL NOT TO SCALE Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 ELECTRICAL TRENCH DETAIL NOT TO SCALE SOLAR PANEL MECHANICAL SPECIFICATION DETAIL NOT TO SCALE BRACING NOTES 1.BRACING IS REQUIRED AT ALL CORNER, END GATE, AND PULL ASSEMBLIES IN THE FENCE. 2.CORNERS ARE REQUIRED AT ALL POINTS WHERE THE FENCE ALIGNMENT CHANGES 15 DEGREES OR MORE THREE, 6 IN. X 16 FT. VERTICAL POSTS AND TWO 5 IN. X 16 FT. HORIZONTAL BRACES ARE REQUIRED FOR EACH CORNER. 3.END BRACING IS REQUIRED WHERE THE FENCE ENDS AT A BUILDING OR ON EACH SIDE OF A GATE OPENING. TWO, 6 IN X 16 FT. VERTICAL POSTS AND ONE 5 IN. X 16 FT. HORIZONTAL BRACE ARE REQUIRED FOR EACH END BRACE. 4.PULL ASSEMBLIES ARE REQUIRED IN STRAIGHT SECTIONS OF FENCE SO THAT THE MAXIMUM DISTANCE BETWEEN CORNERS DOES NOT EXCEED 1,320 DT. TWO 6 IN. X 16 FT. VERTICAL POSTS AND ONE 5 IN. X 16 FT. BRACE ARE REQUIRED 5.DOUBLE BRACES (FIGURE 4) SHOULD BE USED ON EACH END FOR STRAIGHT FENCE LINES EXCEEDING 1,000 FT. DOUBLE END BRACES REQUIRE THREE 6 IN. X 16 FT. HORIZONTAL BRACES. GENERAL NOTES 1.PROVIDE A 4800 LB/FT ENHANCED WOVEN GEOTEXTILE SEPERATION LAYER AND INSTALL PER MANUFACTURER RECOMMENDATIONS INCLUDING OVERLAPS BASED ON SUB GRADE CBR. 2.THE GEOCELL SHALL BE CONNECTED WITH TYP 3 REBAR J HOOKS. 3.PROVIDE TYP 3 ANCHORS TO KEEP PANELS OPEN FOR INFILL AS REQUIRED 4.GEOCELL INFILL SHALL BE 3 4'' TO 1.5'' CRUSHED AGGREGATE WITH FINE LIMITED TO LESS THAN 10% TO ALLOW FREE DRAINAGE. 5.LIMIT THE DROP OF INFILL TO PREVENT PANEL DISTORTION. 6.ASSUME HS-20 LOADING PERMEABLE ACCESS ROAD GENERAL NOTES 1.USE OF THIS DETAIL/CRITERION IS LIMITED TO ACCESS ROADS USED ON AN OCCASIONAL BASIS ONLY (I.E. PROVIDE ACCESS FOR MOWING EQUIPMENT REPAIR OR MAINTENANCE, ETC.) 2.LIIMITED USE PERVIOUS ACCESS ROAD IS LIMITED TO LOW IMPACT IRREGULAR MAINTENANCE ACCESS ASSOCIATED WITH RENEWABLE ENERGY PROJECTS IN NEW YORK STATE. 3.REMOVE STUMPS, ROCKS AND DEBRIS AS NECESSARY, FILL VOIDS TO MATCH EXISTING NATIVE SOILS AND COMPACTION LEVEL. 4.REMOVED TOPSOIL MAY BE SPREAD IN ADJACENT AREAS AS DIRECTED BY THE PROJECT ENGINEER. COMPACT TO THE DEGREE OF THE NATIVE INSITU SOIL. DO NOT PLACE IN AN AREA THAT IMPEDES STORMWATER DRAINAGE. 5.GRADE ROADWAY, WHERE NECESSARY TO NATIVE SOIL AND DESIRED ELEVATION MINOR GRADING FOR CROSS SLOPE CUT AND FILL MAY BE REQUIRED 6.REMOVE 6'' TO 8'' TOPSOIL AS DIRECTED BY ENGINEER. 7.REMOVE REFUSE SOILS AS DIRECTED BY THE PROJECT ENGINEER. DO NOT PLACE IN AN ARE THAT IMPEDES STORMWATER DRAINAGE. 8.ROADWAY WIDTH TO BE DETERMINED BY CLIENT. 9.THE LIMITED USE PERVIOUS ACCESS ROAD CROSS SLOPE SHALL BE 0% IN MOST CASES AND SHOULD NOT EXCEED 5%. THE LONGITUDINAL SLOPE OF THE ACCESS DRIVE SHOULD NOT EXCEED 5%. 10.LIMITED USE PERVIOUS ACCESS ROAD IS NOT INTENDED TO BE UTILIZED FOR CONSTRUCTION WHICH MAY SUBJECT THE ACCESS TO SEDIMENT TRACKING. THIS SPECIFICATION IS TO BE DEVELOPED FOR POST-CONSTRUCTION USE, SOIL RESTORATION PRACTICES MAY BE APPLICABLE TO RESTORE CONSTRUCTION RELATED COMPACTION TO PRE-EXISTING CONDITIONS AND SHOULD BE VERIFIED BY SOIL PENETROMETER READINGS. THE PENETROMETER READINGS SHALL BE COMPARED TO THE RESPECTIVE RECORDED READINGS TAKEN PRIOR TO CONSTRUCTION, EVERY 100 LINEAR FEET ALONG THE PROPOSED ROADWAY. 11.TO ENSURE THAT SOIL IS NOT TRACKED ONTO THE LIMITED USE PERVIOUS ACCESS ROAD, IT SHALL NOT BE USED BY CONSTRUCTION VEHICLES TRANSPORTING SOIL, FILL MATERIAL, ETC. IF THE LIMITED USE PERVIOUS ACCESS IS COMPLETED DURING INITIAL PHASES OF CONSTRICTION, A STANDARD NEW YORK STATE STABILIZED CONSTRUCTION ACCESS SHALL BE CONSTRUCTED AND UTILIZED TO REMOVE SEDIMENT FROM CONSTRUCTION VEHICLES AND EQUIPMENT PRIOR TO ENTERING THE LIMITED USE PERVIOUS ACCESS ROAD FROM ANY LOCATION ON, OR OFF SITE. MAINTENANCE OF THE PERVIOUS ACCESS ROAD WILL BE REQUIRED IF SEDIMENT IS OBSERVED WITHIN THE CLEAN STONE. 12.THE LIMITED USE PERVIOUS ACCESS ROAD SHALL NOT BE CONSTRUCTED OR USED UNTIL ALL AREAS SUBJECT TO RUNOFF ONTO THE PERVIOUS ACCESS HAVE ACHIEVED FINAL STABILIZATION. 13.PROJECTS SHOULD AVIOD INSTILLATION OF THE LIMITED USE PERVIOUS ACCESS ROAD IN POORLY DRAINED AREAS, HOWEVER IF NO A 14. THE DESIGN PROFESSIONAL MUST ACCOUNT FOR THE LIMITED USE PERVIOUS ACCESS ROAD IN THEIR SITE ASSESSMMENT/HYDROLOGY ANALYSIS. IF THE HYDROLOGY ANALYSIS SHOWS THAT THE HYDROLOGY HAS BEEN ALTERED FROM PRE- TO POST-DEVELOPMENT CONDITIONS (SEE APPENDIX A OF GP-0-20-001 FOR THE DEFINITION OF "ALTER THE HYDROLOGY..."), THE DESIGN MUST INCLUDE THE NECESSARY DETENTION/RETENTION PRACTICES TO ATTENUATE THE RATES (10 AND 100 YEAR EVENTS) TO PRE-DEVELOPMENT CONDITIONS. GEOCELL MATERIAL NOTES: 1.THE GEOCELL, OR COMPARABLE PRODUCT, IS SUGGESTED FOR USE ON ROAD PROFILES EXCEEDING 5%. THE GEOCELL PRODUCT IS INTENDED TO LIMIT SHIFTING STONE MATERIAL DURING USE. 2.INSTILLATION TO BE COMPLETED IN ACCORDANCE WITH MANUFACTURER'S SPECIFICATIONS. 3.WHERE REQUIRED, A NATIVE SOIL WEDGE SHALL BE PLACED TO ACCOMODATE ROAD CROSS SLOPE OF 2%. NATIVE SOIL SHALL BE COMPACTED TO MATCH EXISTING SOIL CONDITIONS. 4.GRAVEL FILL MATERIAL SHALL CONSIST OF 1-4'' CLEAN, DURABLE, SHARP-ANGLED CRUSHED STONE OF UNIFORM QUALITY, MEETING THE SPECIFICATIONS OF NYSDOT ITEM 703-02, SIZE DESIGNATION 3-5 OF TABLE 703-4. STONE MAY BE PLACED IN FRONT OF, AND SPREAD WITH, A TRACKED VEHICLE. GRAVEL SHALL NOT BE COMPACTED. 5.GEOCELL SYSTEM SHALL BE CARTHAGE MILLS CX-20 6'' HS20 LOADING OR APPROVED EQUAL. GEOCELL SHALL BE DESIGNED BASED ON EXISTING SOIL CONDITIONS AND PROPOSED HAUL ROAD SLOPES. 6.LIMITED USE PERVIOUS ACCESS ROAD SHALL BE TOP DRESSED AS REQUIRED WITH ONLY 1-4'' CRUSHED STONE, SIZE 3A, MEETING NYSDOT ITEM 703-02 SPECIFICATIONS. 7.THE TOP EDGES OF ADJACENT CELL WALLS SHALL BE FLUSH WHEN CONNECTING. ALIGN THE I-SLOTS FOR INTERLEAF AND END TO END CONNECTIONS. THE GEOCELL PANELS SHALL BE CONNECTED WITH TYPE 3 J HOOKS AT EACH INTERLEAD AND END TO END CONNECTIONS. REFER TO MANUFACTURER'S SPECIFICATION FOR PROPER INSTILLATION. TYING AND CONNECTIONS. 8.[PREPARE THE SUBGRADE AS SHOWN ON THE CONSTRUCTION DRAWINGS. 9.COMPACT THE SOIL TO A MINIMUM 95% STANDARD PROCTOR. 10.VERIFY THAT THE SUBGRADE STRENGTH. IF UNACCEPPTABLE, THE SOILS SHALL BE REMOVED AND REPLACED AS DIRECTED BY THE ENGINEER. 11.WHERE REQUIRED, PROVIDE GEOTEXTILE SEPARATION LAYER. 12.EXPAND THE GEOCELL SECTIONS INTO POSITION AND CONNECT THE END TO END INTERLEAD CONNECTIONS WITH ATRA KEYS. 13.PLACE THE SPECIFIED INFILL MATERIAL TO 2 INCHES ABOVE CELL WALLS AND COMPACT TO A MINIMUM 95% STANDARD PROCTOR. 14.PROVIDE ADDITIONAL SURFACE MATERIAL AS SPECIFIED. BASIS OF DESIGN: CARTHAGE MILL WOVEN GEOTEXTILE MATERIAL NOTES: 1.GEOTEXTILE MATERIAL TO B CARTHAGE MILL FX-60HS OR APPROVED EQUAL. BASIS OF DESIGN: CARTHAGE MILLS EXISTING ELEVATION ROADSIDE SWALE, TYP. BOTH SIDES SIGNAGE DETAIL NOT TO SCALE SIGNAGE NOTE: 1. SIGNAGE SHALL BE DEPICTED WITH AN AREA NO MORE THAN 8 SQUARE FEET AND MUST HAVE A YELLOW BACKGROUND WITH BLACK LETTERS AND BE LOCATED NEAR PAD MOUNTED TRANSFORMERS/SUBSTATION, ON THE GATE OF THE PERIMETER FENCE, AND ALONG THE PERIMETER FENCE. RAIN GARDEN DETAIL NOT TO SCALE PLANTING DETAIL NOT TO SCALE EXCAVATE AT STABLE SLOPE ANGLE FOR NATIVE SOIL EXISTING GRADE COMPACTED STRUCTURAL FILL BERM AS NEEDED ERNEST SEEDS RAIN GARDEN SEED MIX PER SPECIFICATIONS OR ENGINEER APPROVED EQUIVALENT SIDE SLOPES, TYP. DEPTH 11/08/23 RPV 08/21/23 MTS AS NOTED DETAILS SED. CONTROL EROSION AND C-602 11 12'MIN. 50'MIN. 6"MIN. 50'MIN. 12'MIN. 10'MIN. 10'MIN. 20" 16" 4" 10' C. TO C. 8" 24" INSTALLATION NOTES 1.AREA CHOSEN FOR STOCKPILING OPERATIONS SHALL BE DRY AND STABLE. 2.MAXIMUM SLOPE OF STOCKPILE SHALL BE 2:1. 3.UPON COMPLETION OF SOIL STOCKPILING, EACH PILE SHALL BE SURROUNDED WITH EITHER SILT FENCING OR STRAWBALES, THEN STABILIZED WITH VEGETATION OR COVERED. 4.SEE SILT FENCE DETAIL ABOVE. 5.SILT FENCE TO BE 10' FROM TOE OF SLOPE AND 10' FROM PROPERTY LINES. 2% M I N . SLO P E 2 % M I N . S L O P E SLOPE OR LESS 1 2 STABILIZE ENTIRE PILE WITH VEGETATION OR COVER SILT FENCE (WITH WIRE FENCING SUPPORT IN SLOPES > 2:1) TEMPORARY SEED FERTILIZER: COMMERCIAL 5-10-5, 175 POUNDS PER ACRE TOP SOILTOP SOIL MULCH: LAYER OF COMMON HAY OR STRAW: 2 TONS PER ACRE APPLY LIME TO BRING SOIL PH TO 6.5 CONSTRUCTION SPECIFICATIONS 1.TOP SOIL, SEED, MULCH, AND FERTILIZER DISTURBED SOIL AREAS THAT WILL BE EXPOSED FOR 14 DAYS OR MORE CONSTRUCTION SPECIFICATIONS ‘’ WINTER RYE HYDRAULICALLY APPLIED BLANKETS ’ ≥ ’ CONSTRUCTION SPECIFICATIONS FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 WINTER SHUTDOWN CONSTRUCTION SCHEDULE 1.POST CLEARING THE EXPOSED SOIL SHALL BE COVERED WITH MATERIAL(S) AS SET FORTH IN THE TECHNICAL STANDARD, NEW YORK STANDARDS AND SPECIFICATIONS FOR EROSION AND SEDIMENT CONTROL, TO PREVENT THE EXPOSED SOIL FROM ERODING (SEE STANDARD AND SPECIFICATIONS FOR TEMPORARY CONSTRUCTION AREA SEEDING/STABILIZATION FOR WINTER SHUT DOWN, ABOVE). 2.REGULARLY INSPECT, MAINTAIN AND RE-SEED ANY AREAS THAT ARE NOT ADEQUATELY STABILIZED UP UNTIL THE JULY 1 START DATE AND THEREAFTER, UNTIL ALL DISTURBED AREAS ARE PERMANENTLY STABILIZED. 3.SITE INSPECTIONS ARE TO TAKE PLACE TWICE PER MONTH WITH PHOTOS PROVIDED TO THE TOWN TO DEMONSTRATE THAT THE SITE REMAINS STABILIZED/PROTECTED UNTIL CONSTRUCTION STARTS. 4.ONCE CONSTRUCTION STARTS, INSPECTIONS SHALL CONTINUE MONTHLY, WITH PHOTOS SUBMITTED TO THE TOWN, TO ENSURE THAT THE TEMPORARY STABILIZATION MEASURES REMAIN IN PLACE IN AREAS NOT UNDER ACTIVE CONSTRUCTION. NORTHEAST SOLAR POLLINATOR 3' MIX - ERNMX-612 SHEEP FESCUE, VARIETY NOT STATED 94.90% BUTTERFLY MILKWEED 2.50% PARTRIDGE PEA, PA ECOTYPE 2.00% SHOWY EVENING PRIMROSE 0.30% ZIGZAG SPIDERWORT, VA ECOTYPE 0.30% SEEDING NOTE: 1. ERNEST CONSERVATION SEEDS NORTHEAST POLLINATOR 3' MIX - ERNMX-612 TO BE SEEDED BELOW SOLAR PANELS. SEED AT 40 LB/AC WITH 30 LB/AC OF A COVER CROP. FOR A COVER CROP USE EITHER GRAIN OATS (1 JAN TO 31 JUL) OR GRAIN RYE (1 AUG TO 31 DEC). PRUNE 1/5 OF GROWTH & NATURAL FORM OF SHRUB RETAIN LEADERS AND BROKEN BRANCHES BUT 3. IF BALLED & BURLAPPED, REMOVE TOP 1/3 OF BURLAP. AS EXISTED AT NURSERY. 2. SHRUB SHALL HAVE SAME RELATION TO FINISH GRADE 1. SPRAY ALL PLANTS WITH ANTI-DESSICANT. NOTES: EARTH SAUCER 3" MULCH WITHIN 6" MIN. MIN.MIN. A.A.N. STD. AS PER A.A.N. STD. AS PER 6"A.A.N. STD. AS PER 6" BALL ROOT WEED BARRIER BALL ROOT UNDISTURBED EARTH TOPSOIL MIXTURE EVERGREEN TREE BR A N C H I N G H E I G H T 6' - 0 ' ' M I N . FINISH GRADE SET TOP OF ROOTBALL 1'' ABOVE BALL DIA. x 2 MIN. SHREDDED BARK MULCH AT 4" DEPTH PREPARED PLANTING MIXTURE OF BALL. DE P T H BA L L TREE BALL, IF PRESENT.REMOVE ALL PLASTIC CORDS FROM DO NOT CUT BURLAP FROM SIDES REMOVE ALL PLASTIC & WIRE TABS. NOTES: FG SOIL SAUCER, TOP W/ MULCH BALL DIA. 4'' DEPTH OF COMPOST, INSTALL AND MIX W/PLANTING BACKFILL MIXTURE DO NOT EXCAVATE LOWER THAN BALL DEPTH. IF ECAVATED BELOW THE BALL DEPTH BACKFILL AND COMPACT TO PREVENT SETTLEMENT. REMOVE BURLAP FROM TOP 1/3 OF PLANTING BALL 25% COMPOST 75% TOPSOIL PH RANGE: 6.7 TO 7.0 5 LBS. TYPE 1 -ROOT GROWTH ENHANCER PER CUBIC YARD OF MIXTURE 11/08/23 RPV 08/21/23 MTS AS NOTED DRAINAGE DETAILS C-603 12 FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted PW G C F I L E N A M E : J : \ P r o j e c t s A - D \ D R S \ 2 3 1 4 - S o u t h M a i n S t r e e t S o u t h P a r c e l \ C A D \ S o u t h M a i n S t r e e t S o u t h P a r c e l 0 7 . 2 6 . 2 4 . d w g ( C - 6 0 3 ) PL O T D A T E / T I M E : A u g 2 6 , 2 0 2 4 - 1 2 : 3 5 p m B y : s c a n l o n Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 GRADE 2' 2' MIN. 3 8" - 2" CRUSHED STONE 8 oz. UNWOVEN GEOTEXTILE FABRIC 12" PERFORATED PIPING COMPACTED SUBGRADE FRENCH DRAIN DETAIL NOT TO SCALE GRAVEL ACCESS ROAD 2' MIN.BACKFILL AT CLASS 1 COMPACTED OR, CLASS 2 COMPACTED MIN. 90% SPD OR, CLASS 3 COMPACTED MIN. 95% SPD SIZE TO BE DETERMINED DUAL WALL SMOOTH INTERIOR ADS N-12 OR APPROVED EQUIVALENT COMPACTED SUBGRADE CULVERT DETAIL NOT TO SCALE Diameter in (mm) 12 A in (mm) B (max) in (mm) H in (mm) L in (mm) W in (mm) (300) 6.5 (165) 10.0 (254) 6.5 (165) 25.0 (635) 29.0 (737) PIPE DIAMETER, in (mm) 15 18 (375) 6.5 (165) 10.0 (254) 6.5 (165) 25.0 (635) 29.0 (737) (450) 7.5 (191) 15.0 (381) 6.5 (165) 32.0 (813) 35.0 (889) 24 (600) 7.5 (191) 18.0 (475) 6.5 (165) 36.0 (914) 45.0 (1143) 30 (750) 7.5 (191) 22.0 (559) 8.6 (218) 58.0 (1473) 63.0 (1600) 36 (900) 7.5 (191) 25.0 (635) 8.6 (218) 58.0 (1473) 63.0 (1600) TYPICAL FLARED END SECTION SPECIFICATION NOT TO SCALE OUTLET PROTECTION RIP-RAP APRON NOT TO SCALE RIP RAP STONE TO BE SIZED WHEN CULVERT IS SELECTED STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX E UNITED STATES DEPARTMENT OF AGRICULTURE WEB SOIL SURVEY United States Department of Agriculture A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Tompkins County, New York Natural Resources Conservation Service October 25, 2023 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist (http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/contactus/? cid=nrcs142p2_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 Soil Map..................................................................................................................8 Soil Map................................................................................................................9 Legend................................................................................................................10 Map Unit Legend................................................................................................11 Map Unit Descriptions.........................................................................................11 Tompkins County, New York...........................................................................14 Ab—Alluvial land.........................................................................................14 BgC—Bath and Valois soils, 5 to 15 percent slopes...................................16 BgD—Bath and Valois soils, 15 to 25 percent slopes, eroded....................18 BtF—Bath, Valois, and Lansing soils, 35 to 60 percent slopes...................21 HdC—Howard gravelly loam, 5 to 15 percent simple slopes......................24 HdD—Howard gravelly loam, 15 to 25 percent slopes................................25 LaB—Langford channery silt loam, 2 to 8 percent slopes...........................27 Mm—Madalin mucky silty clay loam...........................................................28 Mp—Muck and Peat....................................................................................30 PhB—Phelps gravelly silt loam, 3 to 8 percent slopes................................32 RnC3—Rhinebeck silty clay loam, 6 to 12 percent slopes, eroded.............33 Ws—Wayland soils complex, 0 to 3 percent slopes, frequently flooded.....34 References............................................................................................................37 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 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 Custom Soil Resource Report 6 identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Custom Soil Resource Report 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 9 Custom Soil Resource Report Soil Map 47 1 3 7 0 0 47 1 3 8 0 0 47 1 3 9 0 0 47 1 4 0 0 0 47 1 4 1 0 0 47 1 4 2 0 0 47 1 4 3 0 0 47 1 3 7 0 0 47 1 3 8 0 0 47 1 3 9 0 0 47 1 4 0 0 0 47 1 4 1 0 0 47 1 4 2 0 0 47 1 4 3 0 0 388000 388100 388200 388300 388400 388500 388600 388700 388800 388900 389000 388000 388100 388200 388300 388400 388500 388600 388700 388800 388900 42° 34' 24'' N 76 ° 2 1 ' 5 4 ' ' W 42° 34' 24'' N 76 ° 2 1 ' 8 ' ' W 42° 34' 2'' N 76 ° 2 1 ' 5 4 ' ' W 42° 34' 2'' N 76 ° 2 1 ' 8 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 200 400 800 1200 Feet 0 50 100 200 300 Meters Map Scale: 1:4,820 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:20,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Tompkins County, New York Survey Area Data: Version 19, Sep 5, 2023 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Apr 1, 2020—Oct 1, 2020 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. Custom Soil Resource Report 10 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI Ab Alluvial land 3.6 6.4% BgC Bath and Valois soils, 5 to 15 percent slopes 10.2 17.8% BgD Bath and Valois soils, 15 to 25 percent slopes, eroded 0.3 0.6% BtF Bath, Valois, and Lansing soils, 35 to 60 percent slopes 1.8 3.2% HdC Howard gravelly loam, 5 to 15 percent simple slopes 20.2 35.5% HdD Howard gravelly loam, 15 to 25 percent slopes 3.7 6.6% LaB Langford channery silt loam, 2 to 8 percent slopes 1.7 3.0% Mm Madalin mucky silty clay loam 3.7 6.5% Mp Muck and Peat 0.4 0.7% PhB Phelps gravelly silt loam, 3 to 8 percent slopes 10.6 18.6% RnC3 Rhinebeck silty clay loam, 6 to 12 percent slopes, eroded 0.4 0.7% Ws Wayland soils complex, 0 to 3 percent slopes, frequently flooded 0.3 0.5% Totals for Area of Interest 57.0 100.0% 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 Custom Soil Resource Report 11 noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or 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 Custom Soil Resource Report 12 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. Custom Soil Resource Report 13 Tompkins County, New York Ab—Alluvial land Map Unit Setting National map unit symbol: 9xkp Elevation: 100 to 3,000 feet Mean annual precipitation: 32 to 42 inches Mean annual air temperature: 45 to 48 degrees F Frost-free period: 120 to 160 days Farmland classification: Not prime farmland Map Unit Composition Fluvaquents and similar soils:40 percent Udifluvents and similar soils:35 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Fluvaquents Setting Landform:Flood plains Landform position (two-dimensional):Toeslope Landform position (three-dimensional):Dip Down-slope shape:Concave Across-slope shape:Concave Parent material:Alluvium with highly variable texture Typical profile H1 - 0 to 5 inches: silt loam H2 - 5 to 72 inches: gravelly silt loam Properties and qualities Slope:0 to 2 percent Depth to restrictive feature:More than 80 inches Drainage class:Poorly drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to very high (0.06 to 19.98 in/hr) Depth to water table:About 0 inches Frequency of flooding:FrequentNone Frequency of ponding:Frequent Calcium carbonate, maximum content:15 percent Available water supply, 0 to 60 inches: Moderate (about 6.1 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 5w Hydrologic Soil Group: A/D Ecological site: F140XY015NY - Wet Low Floodplain Hydric soil rating: Yes Description of Udifluvents Setting Landform:Flood plains Landform position (two-dimensional):Summit Custom Soil Resource Report 14 Landform position (three-dimensional):Talf Down-slope shape:Concave Across-slope shape:Convex Parent material:Alluvium with a wide range of texture Typical profile H1 - 0 to 4 inches: gravelly loam H2 - 4 to 72 inches: very gravelly sand Properties and qualities Slope:0 to 5 percent Depth to restrictive feature:More than 80 inches Drainage class:Moderately well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to very high (0.06 to 19.98 in/hr) Depth to water table:About 24 to 72 inches Frequency of flooding:NoneFrequent Frequency of ponding:None Calcium carbonate, maximum content:15 percent Available water supply, 0 to 60 inches: Low (about 5.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 5w Hydrologic Soil Group: A Ecological site: F140XY014NY - Low Floodplain Hydric soil rating: No Minor Components Eel (teel) Percent of map unit:5 percent Hydric soil rating: No Genesee (hamlin) Percent of map unit:5 percent Hydric soil rating: No Sloan Percent of map unit:5 percent Landform:Flood plains Hydric soil rating: Yes Fresh water marsh Percent of map unit:5 percent Landform:Marshes Hydric soil rating: Yes Wayland Percent of map unit:5 percent Landform:Flood plains Hydric soil rating: Yes Custom Soil Resource Report 15 BgC—Bath and Valois soils, 5 to 15 percent slopes Map Unit Setting National map unit symbol: 2v32c Elevation: 330 to 2,460 feet Mean annual precipitation: 31 to 70 inches Mean annual air temperature: 39 to 52 degrees F Frost-free period: 105 to 180 days Farmland classification: Farmland of statewide importance Map Unit Composition Bath and similar soils:40 percent Valois and similar soils:35 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Bath Setting Landform:Mountains, hills Landform position (two-dimensional):Backslope, summit, shoulder Landform position (three-dimensional):Side slope, interfluve Down-slope shape:Concave Across-slope shape:Linear Parent material:Loamy till derived mainly from gray and brown siltstone, sandstone, and shale Typical profile Ap - 0 to 9 inches: channery silt loam Bw1 - 9 to 15 inches: channery silt loam Bw2 - 15 to 25 inches: channery loam E - 25 to 29 inches: channery loam Bx - 29 to 52 inches: very channery silt loam C - 52 to 72 inches: very channery silt loam Properties and qualities Slope:5 to 15 percent Surface area covered with cobbles, stones or boulders:0.0 percent Depth to restrictive feature:26 to 38 inches to fragipan Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Very low to moderately low (0.00 to 0.14 in/hr) Depth to water table:About 24 to 36 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:15 percent Available water supply, 0 to 60 inches: Low (about 4.5 inches) Custom Soil Resource Report 16 Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: C Ecological site: F140XY030NY - Well Drained Dense Till Hydric soil rating: No Description of Valois Setting Landform:End moraines, lateral moraines, valley sides Landform position (two-dimensional):Shoulder Landform position (three-dimensional):Crest Down-slope shape:Convex Across-slope shape:Convex Parent material:Loamy till derived mainly from sandstone, siltstone, and shale Typical profile H1 - 0 to 2 inches: gravelly silt loam H2 - 2 to 32 inches: gravelly silt loam H3 - 32 to 49 inches: gravelly silt loam H4 - 49 to 60 inches: gravelly silt loam Properties and qualities Slope:5 to 15 percent Depth to restrictive feature:24 to 36 inches to fragipan Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table:About 24 to 35 inches Frequency of flooding:None Frequency of ponding:None Available water supply, 0 to 60 inches: Low (about 4.2 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: C Ecological site: F140XY027NY - Well Drained Till Uplands Hydric soil rating: No Minor Components Mardin Percent of map unit:5 percent Landform:Mountains, hills Landform position (two-dimensional):Summit, shoulder Landform position (three-dimensional):Interfluve, side slope Down-slope shape:Convex Across-slope shape:Convex Hydric soil rating: No Lordstown Percent of map unit:5 percent Landform:Hills, mountains Landform position (two-dimensional):Backslope Landform position (three-dimensional):Mountainflank, nose slope, side slope Custom Soil Resource Report 17 Down-slope shape:Linear Across-slope shape:Linear Hydric soil rating: No Volusia Percent of map unit:5 percent Landform:Mountains, hills Landform position (two-dimensional):Footslope, summit Landform position (three-dimensional):Base slope, interfluve, side slope Down-slope shape:Concave Across-slope shape:Linear Hydric soil rating: No Erie Percent of map unit:5 percent Landform:Hills Landform position (two-dimensional):Footslope, summit Landform position (three-dimensional):Base slope, interfluve Down-slope shape:Concave Across-slope shape:Linear Hydric soil rating: No Langford Percent of map unit:5 percent Landform:Hills Landform position (two-dimensional):Backslope, shoulder Landform position (three-dimensional):Interfluve, side slope Down-slope shape:Linear Across-slope shape:Linear Hydric soil rating: No BgD—Bath and Valois soils, 15 to 25 percent slopes, eroded Map Unit Setting National map unit symbol: 2v32d Elevation: 330 to 2,460 feet Mean annual precipitation: 31 to 70 inches Mean annual air temperature: 39 to 52 degrees F Frost-free period: 105 to 180 days Farmland classification: Not prime farmland Map Unit Composition Bath, eroded, and similar soils:40 percent Valois and similar soils:35 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Custom Soil Resource Report 18 Description of Bath, Eroded Setting Landform:Mountains, hills Landform position (two-dimensional):Backslope Landform position (three-dimensional):Side slope, nose slope Down-slope shape:Linear Across-slope shape:Linear Parent material:Loamy till derived mainly from gray and brown siltstone, sandstone, and shale Typical profile Ap - 0 to 9 inches: channery silt loam Bw1 - 9 to 13 inches: channery silt loam Bw2 - 13 to 23 inches: channery loam E - 23 to 27 inches: channery loam Bx - 27 to 50 inches: very channery silt loam C - 50 to 72 inches: very channery silt loam Properties and qualities Slope:15 to 25 percent Surface area covered with cobbles, stones or boulders:0.0 percent Depth to restrictive feature:26 to 38 inches to fragipan Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Very low to moderately low (0.00 to 0.14 in/hr) Depth to water table:About 24 to 36 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:15 percent Available water supply, 0 to 60 inches: Low (about 4.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: F140XY030NY - Well Drained Dense Till Hydric soil rating: No Description of Valois Setting Landform:End moraines, lateral moraines, valley sides Landform position (two-dimensional):Backslope Landform position (three-dimensional):Side slope Down-slope shape:Convex Across-slope shape:Convex Parent material:Loamy till derived mainly from sandstone, siltstone, and shale Typical profile H1 - 0 to 2 inches: gravelly silt loam H2 - 2 to 32 inches: gravelly silt loam H3 - 32 to 49 inches: gravelly silt loam H4 - 49 to 60 inches: gravelly silt loam Properties and qualities Slope:15 to 25 percent Custom Soil Resource Report 19 Depth to restrictive feature:24 to 36 inches to fragipan Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table:About 24 to 35 inches Frequency of flooding:None Frequency of ponding:None Available water supply, 0 to 60 inches: Low (about 4.2 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: F140XY027NY - Well Drained Till Uplands Hydric soil rating: No Minor Components Howard Percent of map unit:5 percent Landform:Terraces, valley trains Landform position (two-dimensional):Backslope Landform position (three-dimensional):Riser Down-slope shape:Convex Across-slope shape:Convex Hydric soil rating: No Lordstown Percent of map unit:5 percent Landform:Hills, mountains Landform position (two-dimensional):Backslope Landform position (three-dimensional):Mountainflank, side slope, nose slope Down-slope shape:Linear Across-slope shape:Linear Hydric soil rating: No Mardin, eroded Percent of map unit:5 percent Landform:Mountains, hills Landform position (two-dimensional):Shoulder, backslope Landform position (three-dimensional):Side slope, interfluve Down-slope shape:Linear Across-slope shape:Linear Hydric soil rating: No Volusia Percent of map unit:5 percent Landform:Mountains, hills Landform position (two-dimensional):Footslope Landform position (three-dimensional):Interfluve, side slope Down-slope shape:Concave Across-slope shape:Linear Hydric soil rating: No Langford, eroded Percent of map unit:5 percent Landform:Hills Custom Soil Resource Report 20 Landform position (two-dimensional):Shoulder, backslope Landform position (three-dimensional):Interfluve, side slope Down-slope shape:Linear Across-slope shape:Linear Hydric soil rating: No BtF—Bath, Valois, and Lansing soils, 35 to 60 percent slopes Map Unit Setting National map unit symbol: 2v32j Elevation: 330 to 2,460 feet Mean annual precipitation: 31 to 70 inches Mean annual air temperature: 39 to 52 degrees F Frost-free period: 100 to 190 days Farmland classification: Not prime farmland Map Unit Composition Bath and similar soils:30 percent Valois and similar soils:25 percent Lansing and similar soils:20 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Bath Setting Landform:Mountains, hills Landform position (two-dimensional):Backslope Landform position (three-dimensional):Nose slope, side slope Down-slope shape:Linear Across-slope shape:Linear Parent material:Loamy till derived mainly from gray and brown siltstone, sandstone, and shale Typical profile A - 0 to 4 inches: channery silt loam Bw1 - 4 to 15 inches: channery silt loam Bw2 - 15 to 25 inches: channery loam E - 25 to 29 inches: channery loam Bx - 29 to 52 inches: very channery silt loam C - 52 to 72 inches: very channery silt loam Properties and qualities Slope:35 to 60 percent Surface area covered with cobbles, stones or boulders:0.0 percent Depth to restrictive feature:26 to 38 inches to fragipan Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Very low to moderately low (0.00 to 0.14 in/hr) Custom Soil Resource Report 21 Depth to water table:About 24 to 36 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:15 percent Available water supply, 0 to 60 inches: Low (about 4.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group: C Ecological site: F140XY030NY - Well Drained Dense Till Hydric soil rating: No Description of Valois Setting Landform:End moraines, lateral moraines, valley sides Landform position (two-dimensional):Backslope Landform position (three-dimensional):Side slope Down-slope shape:Convex Across-slope shape:Convex Parent material:Loamy till derived mainly from sandstone, siltstone, and shale Typical profile H1 - 0 to 2 inches: gravelly silt loam H2 - 2 to 32 inches: gravelly silt loam H3 - 32 to 49 inches: gravelly silt loam H4 - 49 to 60 inches: gravelly silt loam Properties and qualities Slope:35 to 60 percent Depth to restrictive feature:24 to 36 inches to fragipan Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table:About 24 to 35 inches Frequency of flooding:None Frequency of ponding:None Available water supply, 0 to 60 inches: Low (about 4.2 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7e Hydrologic Soil Group: C Ecological site: F140XY027NY - Well Drained Till Uplands Hydric soil rating: No Description of Lansing Setting Landform:Hills, drumlinoid ridges Landform position (two-dimensional):Backslope, summit, shoulder 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 Custom Soil Resource Report 22 Typical profile A - 0 to 8 inches: gravelly silt loam E - 8 to 13 inches: gravelly silt loam Bt/E - 13 to 21 inches: gravelly silt loam Bt1 - 21 to 28 inches: gravelly silt loam Bt2 - 28 to 39 inches: gravelly silt loam C - 39 to 79 inches: gravelly loam Properties and qualities Slope:35 to 60 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):Moderately low to moderately high (0.01 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 8.1 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7e Hydrologic Soil Group: B Ecological site: F101XY012NY - Till Upland, F140XY027NY - Well Drained Till Uplands Hydric soil rating: No Minor Components Cayuga Percent of map unit:5 percent Landform:Till plains, lake plains Landform position (two-dimensional):Summit Landform position (three-dimensional):Side slope, riser Down-slope shape:Concave Across-slope shape:Convex Hydric soil rating: No Lordstown, very stony Percent of map unit:5 percent Landform:Hills, mountains Landform position (two-dimensional):Backslope Landform position (three-dimensional):Mountainflank, nose slope, free face, side slope Down-slope shape:Linear Across-slope shape:Linear Hydric soil rating: No Darien Percent of map unit:5 percent Landform:Till plains, hills, drumlinoid ridges Landform position (two-dimensional):Footslope, summit Landform position (three-dimensional):Base slope Down-slope shape:Concave Custom Soil Resource Report 23 Across-slope shape:Linear Hydric soil rating: No Mardin Percent of map unit:5 percent Landform:Mountains, hills Landform position (two-dimensional):Backslope Landform position (three-dimensional):Side slope, head slope Down-slope shape:Concave Across-slope shape:Linear Hydric soil rating: No Honeoye Percent of map unit:5 percent Landform:Till plains, drumlins Landform position (two-dimensional):Shoulder Landform position (three-dimensional):Crest Down-slope shape:Convex Across-slope shape:Convex Hydric soil rating: No HdC—Howard gravelly loam, 5 to 15 percent simple slopes Map Unit Setting National map unit symbol: 9xlv Elevation: 160 to 1,970 feet Mean annual precipitation: 32 to 42 inches Mean annual air temperature: 45 to 48 degrees F Frost-free period: 120 to 160 days Farmland classification: Farmland of statewide importance Map Unit Composition Howard and similar soils:75 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Howard Setting Landform:Terraces, valley trains Landform position (two-dimensional):Shoulder Landform position (three-dimensional):Tread Down-slope shape:Convex Across-slope shape:Convex Parent material:Gravelly loamy glaciofluvial deposits over sandy and gravelly glaciofluvial deposits, containing significant amounts of limestone Custom Soil Resource Report 24 Typical profile H1 - 0 to 9 inches: gravelly loam H2 - 9 to 25 inches: loam H3 - 25 to 47 inches: gravelly silt loam H4 - 47 to 60 inches: Error Properties and qualities Slope:5 to 15 percent Depth to restrictive feature:More than 80 inches Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately high to high (0.57 to 5.95 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:5 percent Available water supply, 0 to 60 inches: Low (about 4.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: A Ecological site: F140XY021NY - Dry Outwash Hydric soil rating: No Minor Components Phelps Percent of map unit:5 percent Hydric soil rating: No Lansing Percent of map unit:5 percent Hydric soil rating: No Fredon Percent of map unit:5 percent Hydric soil rating: No Genesee (hamlin) Percent of map unit:5 percent Hydric soil rating: No Valois Percent of map unit:5 percent Hydric soil rating: No HdD—Howard gravelly loam, 15 to 25 percent slopes Map Unit Setting National map unit symbol: 9xlx Elevation: 160 to 1,970 feet Custom Soil Resource Report 25 Mean annual precipitation: 32 to 42 inches Mean annual air temperature: 45 to 48 degrees F Frost-free period: 120 to 160 days Farmland classification: Not prime farmland Map Unit Composition Howard and similar soils:75 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Howard Setting Landform:Terraces, valley trains Landform position (two-dimensional):Backslope Landform position (three-dimensional):Riser Down-slope shape:Convex Across-slope shape:Convex Parent material:Gravelly loamy glaciofluvial deposits over sandy and gravelly glaciofluvial deposits, containing significant amounts of limestone Typical profile H1 - 0 to 9 inches: gravelly loam H2 - 9 to 25 inches: loam H3 - 25 to 47 inches: gravelly silt loam H4 - 47 to 60 inches: Error Properties and qualities Slope:15 to 25 percent Depth to restrictive feature:More than 80 inches Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately high to high (0.57 to 5.95 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:5 percent Available water supply, 0 to 60 inches: Low (about 4.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: A Ecological site: F140XY021NY - Dry Outwash Hydric soil rating: No Minor Components Fredon Percent of map unit:5 percent Hydric soil rating: No Valois Percent of map unit:5 percent Hydric soil rating: No Palmyra Percent of map unit:5 percent Custom Soil Resource Report 26 Hydric soil rating: No Arkport Percent of map unit:5 percent Hydric soil rating: No Phelps Percent of map unit:5 percent Hydric soil rating: No LaB—Langford channery silt loam, 2 to 8 percent slopes Map Unit Setting National map unit symbol: 2ywp2 Elevation: 330 to 2,460 feet Mean annual precipitation: 31 to 70 inches Mean annual air temperature: 39 to 52 degrees F Frost-free period: 105 to 180 days Farmland classification: Farmland of statewide importance Map Unit Composition Langford and similar soils:85 percent Minor components:15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Langford Setting Landform:Hills Landform position (two-dimensional):Shoulder, summit Landform position (three-dimensional):Interfluve, side slope Down-slope shape:Convex Across-slope shape:Convex Parent material:Till Typical profile Ap - 0 to 9 inches: channery silt loam Bw - 9 to 17 inches: channery silt loam E - 17 to 21 inches: channery loam Bx - 21 to 48 inches: channery silt loam C - 48 to 72 inches: channery silt loam Properties and qualities Slope:2 to 8 percent Surface area covered with cobbles, stones or boulders:0.0 percent Depth to restrictive feature:15 to 28 inches to fragipan Drainage class:Moderately well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low (0.01 to 0.14 in/hr) Depth to water table:About 14 to 24 inches Frequency of flooding:None Custom Soil Resource Report 27 Frequency of ponding:None Calcium carbonate, maximum content:10 percent Maximum salinity:Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 3.7 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: D Ecological site: F140XY024NY - Moist Dense Till Hydric soil rating: No Minor Components Erie Percent of map unit:10 percent Landform:Hills Landform position (two-dimensional):Footslope, summit Landform position (three-dimensional):Base slope, interfluve Down-slope shape:Concave Across-slope shape:Linear Hydric soil rating: No Schuyler Percent of map unit:5 percent Landform:Hills Landform position (two-dimensional):Summit, shoulder Landform position (three-dimensional):Side slope, interfluve Down-slope shape:Convex Across-slope shape:Convex Ecological site:F139XY006OH - Moist Till Highlands Hydric soil rating: No Mm—Madalin mucky silty clay loam Map Unit Setting National map unit symbol: 9xng Elevation: 330 to 2,460 feet Mean annual precipitation: 32 to 42 inches Mean annual air temperature: 45 to 48 degrees F Frost-free period: 120 to 160 days Farmland classification: Not prime farmland Map Unit Composition Madalin and similar soils:75 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Custom Soil Resource Report 28 Description of Madalin Setting Landform:Depressions Landform position (two-dimensional):Toeslope Landform position (three-dimensional):Tread Down-slope shape:Concave Across-slope shape:Concave Parent material:Clayey and silty glaciolacustrine deposits Typical profile H1 - 0 to 8 inches: mucky silty clay loam H2 - 8 to 26 inches: silty clay H3 - 26 to 60 inches: clay Properties and qualities Slope:0 to 2 percent Depth to restrictive feature:More than 80 inches Drainage class:Very poorly drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table:About 0 inches Frequency of flooding:None Frequency of ponding:Frequent Calcium carbonate, maximum content:10 percent Available water supply, 0 to 60 inches: Moderate (about 8.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 5w Hydrologic Soil Group: C/D Ecological site: F140XY016NY - Mineral Wetlands Hydric soil rating: Yes Minor Components Ovid Percent of map unit:5 percent Hydric soil rating: No Rhinebeck Percent of map unit:5 percent Hydric soil rating: No Hudson Percent of map unit:5 percent Hydric soil rating: No Muck and peat Percent of map unit:5 percent Landform:Marshes, swamps Hydric soil rating: Yes Canandaigua Percent of map unit:5 percent Landform:Depressions Hydric soil rating: Yes Custom Soil Resource Report 29 Mp—Muck and Peat Map Unit Setting National map unit symbol: 9xnk Elevation: 160 to 2,400 feet Mean annual precipitation: 32 to 42 inches Mean annual air temperature: 45 to 48 degrees F Frost-free period: 120 to 160 days Farmland classification: Not prime farmland Map Unit Composition Saprists and similar soils:40 percent Fibrists and similar soils:35 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Saprists Setting Landform:Marshes, swamps Landform position (two-dimensional):Toeslope Landform position (three-dimensional):Talf Down-slope shape:Concave Across-slope shape:Concave Parent material:Organic material Typical profile H1 - 0 to 72 inches: muck Properties and qualities Slope:0 to 1 percent Depth to restrictive feature:More than 80 inches Drainage class:Very poorly drained Capacity of the most limiting layer to transmit water (Ksat):Moderately high to very high (0.20 to 19.98 in/hr) Depth to water table:About 0 inches Frequency of flooding:None Frequency of ponding:Frequent Calcium carbonate, maximum content:5 percent Available water supply, 0 to 60 inches: Very high (about 23.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8w Hydrologic Soil Group: A/D Ecological site: F140XY012PA - Organic Wetlands Hydric soil rating: Yes Custom Soil Resource Report 30 Description of Fibrists Setting Landform:Depressions Landform position (two-dimensional):Toeslope Down-slope shape:Concave Across-slope shape:Concave Parent material:Organic material Typical profile H1 - 0 to 72 inches: peat Properties and qualities Slope:0 to 1 percent Depth to restrictive feature:More than 80 inches Drainage class:Very poorly drained Capacity of the most limiting layer to transmit water (Ksat):Moderately high to very high (0.20 to 19.98 in/hr) Depth to water table:About 0 inches Frequency of flooding:None Frequency of ponding:Frequent Calcium carbonate, maximum content:5 percent Available water supply, 0 to 60 inches: Very high (about 23.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8w Hydrologic Soil Group: A/D Ecological site: F140XY011NY - Rich Organic Wetlands, F140XY012PA - Organic Wetlands Hydric soil rating: Yes Minor Components Madalin Percent of map unit:5 percent Landform:Depressions Hydric soil rating: Yes Sloan Percent of map unit:5 percent Landform:Flood plains Hydric soil rating: Yes Canandaigua Percent of map unit:5 percent Landform:Depressions Hydric soil rating: Yes Fresh water marsh Percent of map unit:5 percent Landform:Marshes Hydric soil rating: Yes Alden Percent of map unit:5 percent Landform:Depressions Hydric soil rating: Yes Custom Soil Resource Report 31 PhB—Phelps gravelly silt loam, 3 to 8 percent slopes Map Unit Setting National map unit symbol: 9xny Elevation: 160 to 1,970 feet Mean annual precipitation: 32 to 42 inches Mean annual air temperature: 45 to 48 degrees F Frost-free period: 120 to 160 days Farmland classification: All areas are prime farmland Map Unit Composition Phelps and similar soils:75 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Phelps Setting Landform:Terraces, valley trains Landform position (two-dimensional):Summit Landform position (three-dimensional):Tread Down-slope shape:Concave Across-slope shape:Convex Parent material:Loamy glaciofluvial deposits over sandy and gravelly glaciofluvial deposits, containing significant amounts of limestone Typical profile H1 - 0 to 9 inches: gravelly silt loam H2 - 9 to 15 inches: gravelly loam H3 - 15 to 25 inches: silt loam H4 - 25 to 60 inches: stratified gravelly loam to silt Properties and qualities Slope:3 to 8 percent Depth to restrictive feature:More than 80 inches Drainage class:Moderately well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately high to high (0.57 to 1.98 in/hr) Depth to water table:About 15 to 24 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:10 percent Available water supply, 0 to 60 inches: Low (about 4.7 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: B/D Ecological site: F101XY006NY - Moist Outwash Custom Soil Resource Report 32 Hydric soil rating: No Minor Components Palmyra Percent of map unit:5 percent Hydric soil rating: No Arkport Percent of map unit:5 percent Hydric soil rating: No Braceville Percent of map unit:5 percent Hydric soil rating: No Howard Percent of map unit:5 percent Hydric soil rating: No Fredon Percent of map unit:5 percent Hydric soil rating: No RnC3—Rhinebeck silty clay loam, 6 to 12 percent slopes, eroded Map Unit Setting National map unit symbol: 9xp2 Elevation: 80 to 1,000 feet Mean annual precipitation: 32 to 42 inches Mean annual air temperature: 45 to 48 degrees F Frost-free period: 120 to 160 days Farmland classification: Not prime farmland Map Unit Composition Rhinebeck and similar soils:75 percent Minor components:25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Rhinebeck Setting Landform:Lake plains Landform position (two-dimensional):Footslope Landform position (three-dimensional):Tread Down-slope shape:Concave Across-slope shape:Linear Parent material:Clayey and silty glaciolacustrine deposits Typical profile H1 - 0 to 12 inches: silty clay loam H2 - 12 to 23 inches: silty clay loam Custom Soil Resource Report 33 H3 - 23 to 60 inches: silty clay loam Properties and qualities Slope:6 to 12 percent Depth to restrictive feature:More than 80 inches Drainage class:Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table:About 6 to 18 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:10 percent Available water supply, 0 to 60 inches: Moderate (about 8.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C/D Ecological site: F101XY009NY - Moist Lake Plain Hydric soil rating: No Minor Components Ovid Percent of map unit:5 percent Hydric soil rating: No Niagara Percent of map unit:5 percent Hydric soil rating: No Madalin Percent of map unit:5 percent Landform:Depressions Hydric soil rating: Yes Hudson Percent of map unit:5 percent Hydric soil rating: No Canandaigua Percent of map unit:5 percent Landform:Depressions Hydric soil rating: Yes Ws—Wayland soils complex, 0 to 3 percent slopes, frequently flooded Map Unit Setting National map unit symbol: 2srgv Elevation: 160 to 1,970 feet Mean annual precipitation: 31 to 68 inches Mean annual air temperature: 43 to 52 degrees F Custom Soil Resource Report 34 Frost-free period: 105 to 180 days Farmland classification: Not prime farmland Map Unit Composition Wayland and similar soils:60 percent Wayland, very poorly drained, and similar soils:30 percent Minor components:10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Wayland Setting Landform:Flood plains Landform position (three-dimensional):Tread Down-slope shape:Linear Across-slope shape:Linear Parent material:Silty and clayey alluvium derived from interbedded sedimentary rock Typical profile A - 0 to 6 inches: silt loam Bg1 - 6 to 12 inches: silt loam Bg2 - 12 to 18 inches: silt loam C1 - 18 to 46 inches: silt loam C2 - 46 to 72 inches: silty clay loam Properties and qualities Slope:0 to 3 percent Depth to restrictive feature:More than 80 inches Drainage class:Poorly drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to high (0.14 to 14.17 in/hr) Depth to water table:About 0 to 6 inches Frequency of flooding:NoneFrequent Frequency of ponding:None Calcium carbonate, maximum content:15 percent Maximum salinity:Nonsaline (0.0 to 1.9 mmhos/cm) Available water supply, 0 to 60 inches: Very high (about 12.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 5w Hydrologic Soil Group: B/D Ecological site: F139XY009OH - Wet Floodplain Hydric soil rating: Yes Description of Wayland, Very Poorly Drained Setting Landform:Flood plains Landform position (three-dimensional):Tread Down-slope shape:Concave Across-slope shape:Concave Parent material:Silty and clayey alluvium derived from interbedded sedimentary rock Custom Soil Resource Report 35 Typical profile A - 0 to 6 inches: mucky silt loam Bg1 - 6 to 12 inches: silt loam Bg2 - 12 to 18 inches: silt loam C1 - 18 to 46 inches: silt loam C2 - 46 to 72 inches: silty clay loam Properties and qualities Slope:0 to 3 percent Depth to restrictive feature:More than 80 inches Drainage class:Very poorly drained Capacity of the most limiting layer to transmit water (Ksat):Moderately low to high (0.14 to 14.17 in/hr) Depth to water table:About 0 inches Frequency of flooding:FrequentNone Frequency of ponding:Frequent Calcium carbonate, maximum content:15 percent Maximum salinity:Nonsaline (0.0 to 1.9 mmhos/cm) Available water supply, 0 to 60 inches: Very high (about 12.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 5w Hydrologic Soil Group: B/D Ecological site: F139XY009OH - Wet Floodplain Hydric soil rating: Yes Minor Components Wakeville Percent of map unit:10 percent Landform:Flood plains Landform position (two-dimensional):Footslope Landform position (three-dimensional):Talf Down-slope shape:Concave Across-slope shape:Linear Hydric soil rating: No Custom Soil Resource Report 36 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.nrcs.usda.gov/wps/portal/ nrcs/detail/national/soils/?cid=nrcs142p2_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.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_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.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ home/?cid=nrcs142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 37 United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/soils/scientists/?cid=nrcs142p2_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.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/? cid=nrcs142p2_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/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf Custom Soil Resource Report 38 Hydrologic Soil Group—Tompkins County, New York Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 Page 1 of 4 47 1 3 7 0 0 47 1 3 8 0 0 47 1 3 9 0 0 47 1 4 0 0 0 47 1 4 1 0 0 47 1 4 2 0 0 47 1 4 3 0 0 47 1 3 7 0 0 47 1 3 8 0 0 47 1 3 9 0 0 47 1 4 0 0 0 47 1 4 1 0 0 47 1 4 2 0 0 47 1 4 3 0 0 388000 388100 388200 388300 388400 388500 388600 388700 388800 388900 389000 388000 388100 388200 388300 388400 388500 388600 388700 388800 388900 42° 34' 24'' N 76 ° 2 1 ' 5 4 ' ' W 42° 34' 24'' N 76 ° 2 1 ' 8 ' ' W 42° 34' 2'' N 76 ° 2 1 ' 5 4 ' ' W 42° 34' 2'' N 76 ° 2 1 ' 8 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 200 400 800 1200 Feet 0 50 100 200 300 Meters Map Scale: 1:4,770 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A A/D B B/D C C/D D Not rated or not available Soil Rating Points A A/D B B/D C C/D D Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:20,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Tompkins County, New York Survey Area Data: Version 19, Sep 5, 2023 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Apr 1, 2020—Oct 1, 2020 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Hydrologic Soil Group—Tompkins County, New York Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 Page 2 of 4 Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI Ab Alluvial land A/D 3.3 6.1% BgC Bath and Valois soils, 5 to 15 percent slopes C 10.0 18.3% BgD Bath and Valois soils, 15 to 25 percent slopes, eroded C 0.2 0.4% BtF Bath, Valois, and Lansing soils, 35 to 60 percent slopes C 1.9 3.4% HdC Howard gravelly loam, 5 to 15 percent simple slopes A 19.2 35.3% HdD Howard gravelly loam, 15 to 25 percent slopes A 3.4 6.3% LaB Langford channery silt loam, 2 to 8 percent slopes D 1.7 3.2% Mm Madalin mucky silty clay loam C/D 3.2 5.8% Mp Muck and Peat A/D 0.4 0.6% PhB Phelps gravelly silt loam, 3 to 8 percent slopes B/D 10.4 19.1% RnC3 Rhinebeck silty clay loam, 6 to 12 percent slopes, eroded C/D 0.4 0.7% Ws Wayland soils complex, 0 to 3 percent slopes, frequently flooded B/D 0.4 0.7% Totals for Area of Interest 54.4 100.0% Hydrologic Soil Group—Tompkins County, New York Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 Page 3 of 4 Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Hydrologic Soil Group—Tompkins County, New York Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/25/2023 Page 4 of 4 STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX F PRELIMINARY GEOTECHNICAL REPORT, PREPARED BY P.W. GROSSER CONSULTING, INC. Page 1 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT December 4, 2023 Mr. Peter Dolgos Delaware River Solar 140 E 45th Street, Suite 32B-1 New York, NY 10017 RE: Preliminary Geotechnical Investigation Report South Main Street/CR-169, Town of Groton, Tompkins County NY - South Parcel PWGC Project Number: DRS2314 This report presents the results of the preliminary geotechnical investigation performed by P.W. Grosser Consulting (PWGC) for the proposed solar facility located at South Main Street/CR-169, Town of Groton, Tompkins County NY (Tax Map No. 31.-1-12.1) ie South Parcel. This report discusses the existing site conditions, the subsurface soils encountered during the investigation and provides preliminary recommendations for the design of the proposed development. PROPOSED DEVELOPMENT The 58.89 acre site primarily consists of forested and agricultural land, located to the south of South Main Street. The development is focused on the farm fields on the eastern and southern portion of the site. The site grading at the farmland portion of the site generally slopes down from west to east, roughly starting at elevation El. +1100’ and sloping down to El. +1030’. The woodland area to the north of fields contains a creek that is traversable by a single crossing. The proposed solar facility is planned to be approximately 18± acres in area. PWGC’s understanding of the proposed development and geotechnical investigation scope is based on the following documents that were provided: • Layout Technical Review by EV Solar, dated October 18, 2023. INVESTIGATION SCOPE The field investigation included a reconnaissance of the site, excavation of test pits, obtaining soil samples from the test pit excavations, classifying soil materials and identifying the presence of bedrock and/or groundwater. Test pit excavations, designated as TP-001S through TP-007S, were carried out on 11/16/23 using a New Holland E37 excavator. The pits were excavated to 10 feet below grade surface (ft bgs). Soil materials were classified using the Unified Soil Classification System (USCS) (ASTM D-2487). See Attachment A for the test pit location plan. Soil samples were collected from each test pit and are stored at PWGC’s office for future testing, if necessary. Test pits were backfilled using the excavated native soils. A test pit log was prepared for each test pit. The logs contain full descriptions of the soil materials and note the presence of boulders, cobbles, bedrock and groundwater. See Attachment B for the test pits logs and Attachment C for test pit photos. FINDINGS – SUBSURFACE CONDITIONS The subsurface conditions can be broadly divided into four (4) distinct layers. The predominant soils were typical of glacially deposited till soils. Page 2 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Stratum 1, Dark Brown Topsoil Layer: A layer of topsoil was encountered at grade surface and down to an approximate depth of 0.5 ft bgs. The soil was comprised of dark brown topsoil. Stratum 2, Brown Silty Sand (SP-SM, SM): Stratum 2 was the predominant soil type encountered. The material consisted of brown, medium to fine grained sands or containing some to little amounts of silt and little to trace gravel, cobbles, and boulders (3 inches to 2 ft in diameter). Stratum 2 was generally found between 0.5 ft to 10 ft bgs. The soil was classified as SP-SM or SM in accordance with USCS. Stratum 3, Grey Clay (SC, CL, CH): Stratum 3 varied between greyish brown clayey sand to grey, medium to high plasticity clay. This stratum was found in three (3) test pits, TP-001S from 6 ft bgs to 7 ft bgs, TP- 006S from 6 ft bgs to 10 ft bgs and in TP-007S from 4 ft bgs to 10 ft bgs. The soil was classified as SC, CL or CH in accordance with USCS. Stratum 4, Apparent Bedrock: Excavation refusal was encountered at 7 ft bgs in TP-001S. A stepout excavation was conducted next to TP-001S, refusal was encountered at 8.5 ft bgs, confirming that refusal was likely encountered due to a bedrock layer. FINDINGS – GROUNDWATER Groundwater was not encountered during the field investigation. FINDINGS – BEDROCK Bedrock was encountered in TP-001S at 7 ft bgs. TP-001S was located at the northeast corner of the array area. Bedrock geology maps indicate that soil deposits are underlain by bedrock of shale, limestone or siltstone comprising the Genesee Formation from the Late Devonian age. DISCUSSION OF FINDINGS The findings from this investigation suggest that the site is generally suitable for the proposed solar facility. The below section relates the investigation findings to fatal flaws typical of solar facility developments: • Supporting the solar arrays on driven, H-pile foundations appear feasible. o Shallow bedrock was encountered in only one of the test pits, TP-001S. This indicates that shallow bedrock conditions may be limited to the northeast corner of the proposed array area. o The predominant soil formation was found to have very limited amounts of cobbles/boulders ranging between 3” to 2’ in diameter. Cobbles and boulders can cause shallow refusal during pile installation. o Shallow, medium to high plasticity clays (Stratum 3) were found most commonly at the western boundary of the proposed array area (TP-006S and TP-007S). Soil borings and test piles will be needed to evaluate foundation design conditions between areas with and without the shallow clay formation. • Groundwater was not encountered during the field investigation. • The gradual sloping topography in the open farmland appears suitable for solar facility development. • Soil infiltration rates with respect to handling stormwater may be fair to poor based on silty sands of Stratum 2 and clays of Stratum 3. Page 3 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT • Soil infiltration rates with respect to handling stormwater may be fair to poor based on the brown silty sands of Stratum 2 and potential clayey soils at deeper depths. A full geotechnical investigation will be necessary to characterize the subsurface conditions of any site. The below section relates this investigation’s specific findings to PWGC’s recommendations for a full geotechnical investigation. • The proposed soil boring layout will delineate the extent of the shallow bedrock encountered at the northeast corner of the array area (near TP-001S). The next phases in the geotechnical investigation will determine which foundation system is suitable for the shallow rock conditions (piles, ballast etc) or if the array layout can be made to avoid this area. • Soil borings and laboratory testing will define the engineering properties of the silty sands (Stratum 2) and clays (Stratum 3) and evaluate proposed piles for each soil type. • Soil borings refusals, if encountered, will investigate the likelihood of pile refusal during test pile and production pile installation. This will inform pile recommendations in the final geotechnical report. • The geotechnical investigation scope will assume that stormwater BMP’s will not require infiltration testing. Should you have any questions or wish to discuss this report in further detail please do not hesitate to call. Very truly yours, P.W. GROSSER CONSULTING Brian Heflich, P.E. Project Manager Page 4 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT ATTACHMENT A TEST PIT LOCATION PLAN Page 5 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT ATTACHMENT B TEST PIT LOGS Page 1 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@ PWG ROSSE R.CO M BOHEMIA • MANHATTAN • SARATO GA SPRING S • SYRACUSE • SHELTON , CT USCS SOIL CLASSIFICATION GUIDE MAJOR DIVISIONS LETTER SYMBOL TYPICAL DESCRIPTIONS COARSE GRAINED SOILS (MORE THAN 50% OF MATERIAL IS LARGER THAN NO. 200 SIEVE SIZE) GRAVEL AND GRAVELLY SOILS (MORE THAN 50% OF COARSE FRACTION RETAINED ON NO. 4 SIEVE) CLEAN GRAVELS (LITTLE OR NO FINES) GW WELL-GRADED GRAVELS, GRAVEL-SAND MIXTURES, LITTLE OR NO FINES GP POORLY-GRADED GRAVELS, GRAVEL-SAND MIXTURES, LITTLE OR NO FINES GRAVELS WITH FINES (APPRECIABLE AMOUNT OF FINES) GM SILTY GRAVELS, GRAVEL-SAND-SILT MIXTURES GC CLAYEY GRAVELS, GRAVEL-SAND-CLAY MIXTURES SAND AND SANDY SOILS (MORE THAN 50% OF COARSE FRACTION PASSING NO. 4 SIEVE) CLEAN SAND (LITTLE OR NO FINES) SW WELL-GRADED SANDS, GRAVELLY SANDS, LITTLE OR NO FINES SP POORLY-GRADED SANDS, GRAVELLY SANDS, LITTLE OR NO FINES SANDS WITH FINES (APPRECIABLE AMOUNT OF FINES) SM SILTY SANDS, SAND-SILT MIXTURES SC CLAYEY SANDS, SAND-CLAY MIXTURES FINE GRAINED SOILS (MORE THAN 50% OF MATERIAL IS SMALLER THAN NO. 200 SIEVE SIZE) SILTS AND CLAYS (LIQUID LIMITS LESS THAN 50) ML INORGANIC SILTS AND VERY FINE SANDS, ROCK FLOUR, SILTY OR CLAYEY FINE SANDS OR CLAYEY SILTS WITH SLIGHT PLASTICITY CL INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, GRAVELLY CLAYS, SANDY CLAYS, SILTY CLAYS, LEAN CLAYS OL ORGANIC SILTS AND ORGANIC SILTY CLAYS OF LOW PLASTICITY SILTS AND CLAYS (LIQUID LIMITS GREATER THAN 50) MH INORGANIC SILTS, MICACEOUS OR DIATOMACEOUS FINE SAND OR SILTY SOILS CH INORGANIC CLAYS OF HIGH PLASTICITY, FAT CLAYS OH ORGANIC CLAYS OF MEDIUM TO HIGH PLASTICITY, ORGANIC SILTS HIGHLY ORGANIC SOILS PT PEAT, HUMUS, SWAMP SOILS WITH HIGH ORGANIC CONTENTS Page 2 P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@ PWG ROSSE R.CO M BOHEMIA • MANHATTAN • SARATO GA SPRING S • SYRACUSE • SHELTON , CT RELATIVE DENSITY AND CONSISTENCY CLASSIFICATION For Sands, Gravels: For Clays, Silts, Organics: Non-Cohesive Soils N Value (Blows/ft) Very Loose 0 – 4 Loose 4 – 10 Medium Dense 10 – 30 Dense 30 – 50 Very Dense 50+ DEFINITIONS OF IDENTIFICATION TERMS FOR GRANULAR SOILS Principal Component (All Capitalized) GRAVEL More than 50% of the sample by weight is Gravel SAND More than 50% of the sample by weight is Sand SILT More than 50% of the sample by weight is Silt Minor Component (Proper Case) Gravel Less than 50% of the sample by weight is Gravel Sand Less than 50% of the sample by weight is Sand Silt Less than 50% of the sample by weight is Silt Proportion terms, for Minor Components (Lower Case) and Component ranges from 35% to 50% of the sample by weight some Component ranges from 20% to 35% of the sample by weight little Component ranges from 10% to 20% of the sample by weight trace Component ranges from 0% to 10% of the sample by weight Size of Soil Components Common Abbreviations Gravel o Coarse gravel ranges from 3 inches to 1 inch o Medium gravel ranges from 1 inch to 3 / 8 inch o Fine gravel ranges from 3 / 8 inch to No. 10 sieve Sand o Coarse sand ranges from No. 10 sieve to No. 30 sieve o Medium sand ranges from No. 30 sieve to No. 60 sieve o Fine sand ranges from No. 60 sieve to No. 200 sieve Silt o Material which passes the No. 200 sieve Clay o Material which passes the No. 200 sieve o Exhibits varying degrees of plasticity Gradation Designations Coarse to fine (c-f) All fractions greater than 10% of the component Coarse to medium (c-m) Less than 10% of the component is fine Medium to fine (m-f) Less than 10% of the component is coarse Coarse (c) Less than 10% of the component is medium and fine Medium (m) Less than 10% of the component is coarse and fine Fine (f) Less than 10% of the component is coarse and medium Cohesive Soils N Value (Blows/ft) Very Soft 0 – 2 Soft 2 – 4 Medium (Firm) 4 – 8 Stiff 8 – 15 Very Stiff 15 – 30 Hard 30+ Term Abbreviation Push P Weight of Hammer WOH Atterberg ATG Moisture Content MC Sieve Analysis SA 8 7 6 5 4 3 2 1 0 TOPSOIL, Dark brown, dry SILTY SAND (SM): Brown, fine grained sand, some silt, infrequent boulders ( less than 2' diameter) CLAYEY SAND (SC): Brown sand, some clay, medium plasticity Refusal Refusal encountered at 7' bgs, Stepout excavation encountered refusal at 8.5' bgs DE P T H (f e e t ) SA M P L E IN T E R V A L DESCRIPTION NAME (USCS): color, moist, plasticity, gravel, odor FIELD NOTES SAMPLING METHOD: PROJECT #: BORING ID: DRILLING CONTRACTOR: DRILLING METHOD: DRILLING EQUIPMENT: DATE STARTED:DATE FINISHED: TIME STARTED:TIME FINISHED: LATITUDE:LONGITUDE: LOGGED BY:PROJECT MANAGER: SITE ADDRESS: BORING DIAMETER (IN):WELL DIAMETER (IN): BORING DEPTH (FT):CORE LENGTH (FT): US C S KE Y DRS2314 TP-001S Barden Construction Test Pit Excavation New Holland E37 Grab 11/16/2023 11/16/2023 08:15 08:29 D ChaseB Heflich 10 South Main St, Groton NY - South Parcel N/A N/A N/A N/A P.W. Grosser Consulting Page 1 of 1End of Boring Depth (feet):10 Water Table Symbol: 10 9 8 7 6 5 4 3 2 1 0 TOPSOIL, Dark brown, dry POORLY GRADED SAND (SP-SM): Dark brown, medium to fine grained sand, little to trace silt, trace gravel Maximum depth for machine reached at 10 ft bgs. No bedrock was encountered. DE P T H (f e e t ) SA M P L E IN T E R V A L DESCRIPTION NAME (USCS): color, moist, plasticity, gravel, odor FIELD NOTES SAMPLING METHOD: PROJECT #: BORING ID: DRILLING CONTRACTOR: DRILLING METHOD: DRILLING EQUIPMENT: DATE STARTED:DATE FINISHED: TIME STARTED:TIME FINISHED: LATITUDE:LONGITUDE: LOGGED BY:PROJECT MANAGER: SITE ADDRESS: BORING DIAMETER (IN):WELL DIAMETER (IN): BORING DEPTH (FT):CORE LENGTH (FT): US C S KE Y DRS2314 TP-002S Barden Construction Test Pit Excavation New Holland E37 Grab 11/16/2023 11/16/2023 09:13 09:27 D ChaseB Heflich 10 South Main St, Groton NY - South Parcel N/A N/A N/A N/A P.W. Grosser Consulting Page 1 of 1End of Boring Depth (feet):10 Water Table Symbol: 10 9 8 7 6 5 4 3 2 1 0 TOPSOIL, Dark brown, dry POORLY GRADED SAND (SP-SM): Brown medium to fine grained sand, little to trace silt POORLY GRADED SAND (SP-SM): Brown medium to fine grained sand, little to trace silt, little cobble, infrequent boulders (1.5' diameter) Maximum depth for machine reached at 10 ft bgs. No bedrock was encountered. DE P T H (f e e t ) SA M P L E IN T E R V A L DESCRIPTION NAME (USCS): color, moist, plasticity, gravel, odor FIELD NOTES SAMPLING METHOD: PROJECT #: BORING ID: DRILLING CONTRACTOR: DRILLING METHOD: DRILLING EQUIPMENT: DATE STARTED:DATE FINISHED: TIME STARTED:TIME FINISHED: LATITUDE:LONGITUDE: LOGGED BY:PROJECT MANAGER: SITE ADDRESS: BORING DIAMETER (IN):WELL DIAMETER (IN): BORING DEPTH (FT):CORE LENGTH (FT): US C S KE Y DRS2314 TP-003S Barden Construction Test Pit Excavation New Holland E37 Grab 11/16/2023 11/16/2023 09:46 10:04 D ChaseB Heflich 10 South Main St, Groton NY - South Parcel N/A N/A N/A N/A P.W. Grosser Consulting Page 1 of 1End of Boring Depth (feet):10 Water Table Symbol: 10 9 8 7 6 5 4 3 2 1 0 TOPSOIL, Dark brown, dry SILTY SAND (SM): Brown silty sand, trace gravel SILTY SAND (SM): Brown silty sand, little cobbles, trace gravel SILTY SAND (SM): Brown silty sand, little cobbles, little gravel Maximum depth for machine reached at 10 ft bgs. No bedrock was encountered. DE P T H (f e e t ) SA M P L E IN T E R V A L DESCRIPTION NAME (USCS): color, moist, plasticity, gravel, odor FIELD NOTES SAMPLING METHOD: PROJECT #: BORING ID: DRILLING CONTRACTOR: DRILLING METHOD: DRILLING EQUIPMENT: DATE STARTED:DATE FINISHED: TIME STARTED:TIME FINISHED: LATITUDE:LONGITUDE: LOGGED BY:PROJECT MANAGER: SITE ADDRESS: BORING DIAMETER (IN):WELL DIAMETER (IN): BORING DEPTH (FT):CORE LENGTH (FT): US C S KE Y DRS2314 TP-004S Barden Construction Test Pit Excavation New Holland E37 Grab 11/16/2023 11/16/2023 10:31 10:45 D ChaseB Heflich 10 South Main St, Groton NY - South Parcel N/A N/A N/A N/A P.W. Grosser Consulting Page 1 of 1End of Boring Depth (feet):10 Water Table Symbol: 10 9 8 7 6 5 4 3 2 1 0 TOPSOIL, Dark brown, dry POORLY GRADED SAND (SP-SM): Brown medium to fine grained sand, little to trace silt, trace gravel POORLY GRADED SAND (SP-SM): Brown medium to fine grained sand, little to trace silt, trace gravel and cobbles Maximum depth for machine reached at 10 ft bgs. No bedrock was encountered. DE P T H (f e e t ) SA M P L E IN T E R V A L DESCRIPTION NAME (USCS): color, moist, plasticity, gravel, odor FIELD NOTES SAMPLING METHOD: PROJECT #: BORING ID: DRILLING CONTRACTOR: DRILLING METHOD: DRILLING EQUIPMENT: DATE STARTED:DATE FINISHED: TIME STARTED:TIME FINISHED: LATITUDE:LONGITUDE: LOGGED BY:PROJECT MANAGER: SITE ADDRESS: BORING DIAMETER (IN):WELL DIAMETER (IN): BORING DEPTH (FT):CORE LENGTH (FT): US C S KE Y DRS2314 TP-005S Barden Construction Test Pit Excavation New Holland E37 Grab 11/16/2023 11/16/2023 11:11 11:23 D ChaseB Heflich 10 South Main St, Groton NY - South Parcel N/A N/A N/A N/A P.W. Grosser Consulting Page 1 of 1End of Boring Depth (feet):10 Water Table Symbol: 10 9 8 7 6 5 4 3 2 1 0 TOPSOIL, Dark brown, dry POORLY GRADED SAND (SP-SM): Brown, poorly graded sand with silt, little gravel, trace cobbles SANDY CLAY (CL): Grey clay, little sand, medium plasticity Maximum depth for machine reached at 10 ft bgs. No bedrock was encountered. DE P T H (f e e t ) SA M P L E IN T E R V A L DESCRIPTION NAME (USCS): color, moist, plasticity, gravel, odor FIELD NOTES SAMPLING METHOD: PROJECT #: BORING ID: DRILLING CONTRACTOR: DRILLING METHOD: DRILLING EQUIPMENT: DATE STARTED:DATE FINISHED: TIME STARTED:TIME FINISHED: LATITUDE:LONGITUDE: LOGGED BY:PROJECT MANAGER: SITE ADDRESS: BORING DIAMETER (IN):WELL DIAMETER (IN): BORING DEPTH (FT):CORE LENGTH (FT): US C S KE Y DRS2314 TP-006S Barden Construction Test Pit Excavation New Holland E37 Grab 11/16/2023 11/16/2023 11:41 12:06 D ChaseB Heflich 10 South Main St, Groton NY - South Parcel N/A N/A N/A N/A P.W. Grosser Consulting Page 1 of 1End of Boring Depth (feet):10 Water Table Symbol: 10 9 8 7 6 5 4 3 2 1 0 TOPSOIL, Dark brown, dry SILTY SAND (SM): Brown, silty sand, little gravel, trace cobble CLAYEY SAND (SC): Brown sand, some clay, medium plasticity HIGH PLASTICITY CLAY (CH): Grey clay, high plasticity Maximum depth for machine reached at 10 ft bgs. No bedrock was encountered. DE P T H (f e e t ) SA M P L E IN T E R V A L DESCRIPTION NAME (USCS): color, moist, plasticity, gravel, odor FIELD NOTES SAMPLING METHOD: PROJECT #: BORING ID: DRILLING CONTRACTOR: DRILLING METHOD: DRILLING EQUIPMENT: DATE STARTED:DATE FINISHED: TIME STARTED:TIME FINISHED: LATITUDE:LONGITUDE: LOGGED BY:PROJECT MANAGER: SITE ADDRESS: BORING DIAMETER (IN):WELL DIAMETER (IN): BORING DEPTH (FT):CORE LENGTH (FT): US C S KE Y DRS2314 TP-007S Barden Construction Test Pit Excavation New Holland E37 Grab 11/16/2023 11/16/2023 12:22 12:47 D ChaseB Heflich 10 South Main St, Groton NY - South Parcel N/A N/A N/A N/A P.W. Grosser Consulting Page 1 of 1End of Boring Depth (feet):10 Water Table Symbol: Page 6 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT ATTACHMENT C TEST PIT PHOTOS Page 7 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Test Pit TP-001S (1 of 2) Test Pit TP-001S (2 of 2) Page 8 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Test Pit TP-002S (1 of 2) Test Pit TP-002S (2 of 2) Page 9 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Test Pit TP-003s (1 of 2) Test Pit TP-003S (2 of 2) Page 10 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Test Pit TP-004S (1 of 2) Test Pit TP-004S (2 of 2) Page 11 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Test Pit TP-005S (1 of 2) Test Pit TP-005S (2 of 2) Page 12 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Test Pit TP-006S (1 of 2) Test Pit TP-006S (2 of 2) Page 13 PRELIMINARY GEOTECHNICAL REPORT – SOUTH MAIN ST, GROTON NY, SOUTH PARCEL 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT Test Pit TP-007S (1 of 2) Test Pit TP-007S (2 of 2) STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX G NOAA ATLAS 14, VOLUME 10, VERSION 3 POINT PRECIPITATION FREQUENCY ESTIMATES ONLINE TOOL STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX H NEW YORK STATE OFFICE OF PARKS, RECREATION AND HISTORIC PRESERVATION NO IMPACT LETTER – 10-26-2022 KATHY HOCHUL Governor ERIK KULLESEID Commissioner October 26, 2022 Jacob Hill Natural Resource Scientist Bergmann 71 State Street Suite 102 Binghamton, NY 13901 Re: USACE South Main Street I & II Solar Farm Projects/10 MW/49 Acres 800 S Main St, Groton, NY 13073 22PR07555 Dear Jacob Hill: Thank you for requesting the comments of the State Historic Preservation Office (SHPO). We have reviewed the project in accordance with Section 106 of the National Historic Preservation Act of 1966. These comments are those of the SHPO and relate only to Historic/Cultural resources. They do not include potential environmental impacts to New York State Parkland that may be involved in or near your project. Such impacts must be considered as part of the environmental review of the project pursuant to the National Environmental Policy Act and/or the State Environmental Quality Review Act (New York Environmental Conservation Law Article 8). Based upon this review, it is the opinion of the New York SHPO that no historic properties, including archaeological and/or historic resources, will be affected by this undertaking. If further correspondence is required regarding this project, please be sure to refer to the OPRHP Project Review (PR) number noted above. Sincerely, R. Daniel Mackay Deputy State Historic Preservation Officer Division for Historic Preservation rev: D. Boggs New York State Office of Parks, Recreation and Historic Preservation Division for Historic Preservation, Peebles Island, PO Box 189, Waterford, New York 12188-0189 (518) 237-8643 • https://parks.ny.gov/shpo STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX I WQv, RRv AND SUB CATCHMENT CALCULATIONS 1S Sub Catchment B 2S Sub Catchment A Routing Diagram for South Parcel Pre Construction - 09.05.24 Prepared by PW Grosser Consulting, Printed 9/5/2024 HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Subcat Reach Pond Link South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 2HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Rainfall Events Listing Event# Event Name Storm Type Curve Mode Duration (hours) B/B Depth (inches) AMC 1 1 yr 24 hr Type II 24-hr Default 24.00 1 2.01 2 2 10 yr 24 hr Type II 24-hr Default 24.00 1 3.75 2 3 100 yr 24 hr Type II 24-hr Default 24.00 1 5.83 2 South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 3HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Area Listing (selected nodes) Area (acres) CN Description (subcatchment-numbers) 15.710 78 Meadow, non-grazed, HSG D (1S, 2S) 5.670 79 Woods, Fair, HSG D (1S, 2S) 21.380 78 TOTAL AREA South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 4HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Soil Listing (selected nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 0.000 HSG B 0.000 HSG C 21.380 HSG D 1S, 2S 0.000 Other 21.380 TOTAL AREA South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 5HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Ground Covers (selected nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.000 0.000 15.710 0.000 15.710 Meadow, non-grazed 1S, 2S 0.000 0.000 0.000 5.670 0.000 5.670 Woods, Fair 1S, 2S 0.000 0.000 0.000 21.380 0.000 21.380 TOTAL AREA Type II 24-hr 1 yr 24 hr Rainfall=2.01"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 6HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.05 hrs, 721 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=14.460 ac 0.00% Impervious Runoff Depth=0.49"Subcatchment 1S: Sub Catchment B Flow Length=933' Tc=15.6 min CN=78 Runoff=8.03 cfs 0.590 af Runoff Area=6.920 ac 0.00% Impervious Runoff Depth=0.53"Subcatchment 2S: Sub Catchment A Flow Length=460' Tc=15.3 min CN=79 Runoff=4.27 cfs 0.305 af Total Runoff Area = 21.380 ac Runoff Volume = 0.895 af Average Runoff Depth = 0.50" 100.00% Pervious = 21.380 ac 0.00% Impervious = 0.000 ac Type II 24-hr 1 yr 24 hr Rainfall=2.01"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 7HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Sub Catchment B Runoff = 8.03 cfs @ 12.10 hrs, Volume= 0.590 af, Depth= 0.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 1 yr 24 hr Rainfall=2.01" Area (ac) CN Description 12.670 78 Meadow, non-grazed, HSG D 1.790 79 Woods, Fair, HSG D 14.460 78 Weighted Average 14.460 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.9 100 0.1000 0.28 Sheet Flow, Sheet Flow Grass: Short n= 0.150 P2= 2.45" 0.9 92 0.0650 1.78 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 2.1 217 0.0599 1.71 Shallow Concentrated Flow, SCF Line 2 Short Grass Pasture Kv= 7.0 fps 2.6 219 0.0411 1.42 Shallow Concentrated Flow, SCF Line 3 Short Grass Pasture Kv= 7.0 fps 2.2 122 0.0328 0.91 Shallow Concentrated Flow, SCF Line 4 Woodland Kv= 5.0 fps 1.9 183 0.0546 1.64 Shallow Concentrated Flow, SCF Line 5 Short Grass Pasture Kv= 7.0 fps 15.6 933 Total Type II 24-hr 1 yr 24 hr Rainfall=2.01"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 8HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Subcatchment 1S: Sub Catchment B Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 8 7 6 5 4 3 2 1 0 Type II 24-hr 1 yr 24 hr Rainfall=2.01" Runoff Area=14.460 ac Runoff Volume=0.590 af Runoff Depth=0.49" Flow Length=933' Tc=15.6 min CN=78 8.03 cfs Type II 24-hr 1 yr 24 hr Rainfall=2.01"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 9HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Sub Catchment A Runoff = 4.27 cfs @ 12.09 hrs, Volume= 0.305 af, Depth= 0.53" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 1 yr 24 hr Rainfall=2.01" Area (ac) CN Description 3.040 78 Meadow, non-grazed, HSG D 3.880 79 Woods, Fair, HSG D 6.920 79 Weighted Average 6.920 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.5 100 0.0300 0.18 Sheet Flow, Sheet Flow Grass: Short n= 0.150 P2= 2.45" 2.5 162 0.0247 1.10 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 2.1 118 0.0339 0.92 Shallow Concentrated Flow, SCF Line 2 Woodland Kv= 5.0 fps 1.2 80 0.0500 1.12 Shallow Concentrated Flow, SCF Line 3 Woodland Kv= 5.0 fps 15.3 460 Total Subcatchment 2S: Sub Catchment A Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 4 3 2 1 0 Type II 24-hr 1 yr 24 hr Rainfall=2.01" Runoff Area=6.920 ac Runoff Volume=0.305 af Runoff Depth=0.53" Flow Length=460' Tc=15.3 min CN=79 4.27 cfs Type II 24-hr 10 yr 24 hr Rainfall=3.75"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 10HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.05 hrs, 721 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=14.460 ac 0.00% Impervious Runoff Depth=1.69"Subcatchment 1S: Sub Catchment B Flow Length=933' Tc=15.6 min CN=78 Runoff=30.64 cfs 2.036 af Runoff Area=6.920 ac 0.00% Impervious Runoff Depth=1.76"Subcatchment 2S: Sub Catchment A Flow Length=460' Tc=15.3 min CN=79 Runoff=15.45 cfs 1.016 af Total Runoff Area = 21.380 ac Runoff Volume = 3.053 af Average Runoff Depth = 1.71" 100.00% Pervious = 21.380 ac 0.00% Impervious = 0.000 ac Type II 24-hr 10 yr 24 hr Rainfall=3.75"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 11HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Sub Catchment B Runoff = 30.64 cfs @ 12.08 hrs, Volume= 2.036 af, Depth= 1.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 10 yr 24 hr Rainfall=3.75" Area (ac) CN Description 12.670 78 Meadow, non-grazed, HSG D 1.790 79 Woods, Fair, HSG D 14.460 78 Weighted Average 14.460 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.9 100 0.1000 0.28 Sheet Flow, Sheet Flow Grass: Short n= 0.150 P2= 2.45" 0.9 92 0.0650 1.78 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 2.1 217 0.0599 1.71 Shallow Concentrated Flow, SCF Line 2 Short Grass Pasture Kv= 7.0 fps 2.6 219 0.0411 1.42 Shallow Concentrated Flow, SCF Line 3 Short Grass Pasture Kv= 7.0 fps 2.2 122 0.0328 0.91 Shallow Concentrated Flow, SCF Line 4 Woodland Kv= 5.0 fps 1.9 183 0.0546 1.64 Shallow Concentrated Flow, SCF Line 5 Short Grass Pasture Kv= 7.0 fps 15.6 933 Total Type II 24-hr 10 yr 24 hr Rainfall=3.75"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 12HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Subcatchment 1S: Sub Catchment B Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 10 yr 24 hr Rainfall=3.75" Runoff Area=14.460 ac Runoff Volume=2.036 af Runoff Depth=1.69" Flow Length=933' Tc=15.6 min CN=78 30.64 cfs Type II 24-hr 10 yr 24 hr Rainfall=3.75"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 13HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Sub Catchment A Runoff = 15.45 cfs @ 12.08 hrs, Volume= 1.016 af, Depth= 1.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 10 yr 24 hr Rainfall=3.75" Area (ac) CN Description 3.040 78 Meadow, non-grazed, HSG D 3.880 79 Woods, Fair, HSG D 6.920 79 Weighted Average 6.920 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.5 100 0.0300 0.18 Sheet Flow, Sheet Flow Grass: Short n= 0.150 P2= 2.45" 2.5 162 0.0247 1.10 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 2.1 118 0.0339 0.92 Shallow Concentrated Flow, SCF Line 2 Woodland Kv= 5.0 fps 1.2 80 0.0500 1.12 Shallow Concentrated Flow, SCF Line 3 Woodland Kv= 5.0 fps 15.3 460 Total Subcatchment 2S: Sub Catchment A Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 10 yr 24 hr Rainfall=3.75" Runoff Area=6.920 ac Runoff Volume=1.016 af Runoff Depth=1.76" Flow Length=460' Tc=15.3 min CN=79 15.45 cfs Type II 24-hr 100 yr 24 hr Rainfall=5.83"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 14HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.05 hrs, 721 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=14.460 ac 0.00% Impervious Runoff Depth=3.43"Subcatchment 1S: Sub Catchment B Flow Length=933' Tc=15.6 min CN=78 Runoff=62.30 cfs 4.132 af Runoff Area=6.920 ac 0.00% Impervious Runoff Depth=3.53"Subcatchment 2S: Sub Catchment A Flow Length=460' Tc=15.3 min CN=79 Runoff=30.93 cfs 2.035 af Total Runoff Area = 21.380 ac Runoff Volume = 6.167 af Average Runoff Depth = 3.46" 100.00% Pervious = 21.380 ac 0.00% Impervious = 0.000 ac Type II 24-hr 100 yr 24 hr Rainfall=5.83"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 15HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Sub Catchment B Runoff = 62.30 cfs @ 12.08 hrs, Volume= 4.132 af, Depth= 3.43" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 100 yr 24 hr Rainfall=5.83" Area (ac) CN Description 12.670 78 Meadow, non-grazed, HSG D 1.790 79 Woods, Fair, HSG D 14.460 78 Weighted Average 14.460 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.9 100 0.1000 0.28 Sheet Flow, Sheet Flow Grass: Short n= 0.150 P2= 2.45" 0.9 92 0.0650 1.78 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 2.1 217 0.0599 1.71 Shallow Concentrated Flow, SCF Line 2 Short Grass Pasture Kv= 7.0 fps 2.6 219 0.0411 1.42 Shallow Concentrated Flow, SCF Line 3 Short Grass Pasture Kv= 7.0 fps 2.2 122 0.0328 0.91 Shallow Concentrated Flow, SCF Line 4 Woodland Kv= 5.0 fps 1.9 183 0.0546 1.64 Shallow Concentrated Flow, SCF Line 5 Short Grass Pasture Kv= 7.0 fps 15.6 933 Total Type II 24-hr 100 yr 24 hr Rainfall=5.83"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 16HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Subcatchment 1S: Sub Catchment B Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 65 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100 yr 24 hr Rainfall=5.83" Runoff Area=14.460 ac Runoff Volume=4.132 af Runoff Depth=3.43" Flow Length=933' Tc=15.6 min CN=78 62.30 cfs Type II 24-hr 100 yr 24 hr Rainfall=5.83"South Parcel Pre Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 17HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Sub Catchment A Runoff = 30.93 cfs @ 12.07 hrs, Volume= 2.035 af, Depth= 3.53" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 100 yr 24 hr Rainfall=5.83" Area (ac) CN Description 3.040 78 Meadow, non-grazed, HSG D 3.880 79 Woods, Fair, HSG D 6.920 79 Weighted Average 6.920 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.5 100 0.0300 0.18 Sheet Flow, Sheet Flow Grass: Short n= 0.150 P2= 2.45" 2.5 162 0.0247 1.10 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 2.1 118 0.0339 0.92 Shallow Concentrated Flow, SCF Line 2 Woodland Kv= 5.0 fps 1.2 80 0.0500 1.12 Shallow Concentrated Flow, SCF Line 3 Woodland Kv= 5.0 fps 15.3 460 Total Subcatchment 2S: Sub Catchment A Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100 yr 24 hr Rainfall=5.83" Runoff Area=6.920 ac Runoff Volume=2.035 af Runoff Depth=3.53" Flow Length=460' Tc=15.3 min CN=79 30.93 cfs 1S Sub Catchment A 2S Sub Catchment B Routing Diagram for South Parcel Post Construction - 09.05.24 Prepared by PW Grosser Consulting, Printed 9/5/2024 HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Subcat Reach Pond Link South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 2HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Rainfall Events Listing Event# Event Name Storm Type Curve Mode Duration (hours) B/B Depth (inches) AMC 1 1 yr 24 hr Type II 24-hr Default 24.00 1 2.01 2 2 10 yr 24 hr Type II 24-hr Default 24.00 1 3.75 2 3 100 yr 24 hr Type II 24-hr Default 24.00 1 5.83 2 South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 3HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Area Listing (selected nodes) Area (acres) CN Description (subcatchment-numbers) 0.710 96 Gravel surface, HSG D (1S, 2S) 20.670 78 Meadow, non-grazed, HSG D (1S, 2S) 21.380 79 TOTAL AREA South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 4HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Soil Listing (selected nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 0.000 HSG B 0.000 HSG C 21.380 HSG D 1S, 2S 0.000 Other 21.380 TOTAL AREA South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 5HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Ground Covers (selected nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.000 0.000 0.710 0.000 0.710 Gravel surface 1S, 2S 0.000 0.000 0.000 20.670 0.000 20.670 Meadow, non-grazed 1S, 2S 0.000 0.000 0.000 21.380 0.000 21.380 TOTAL AREA Type II 24-hr 1 yr 24 hr Rainfall=2.01"South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 6HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.05 hrs, 721 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=6.920 ac 0.00% Impervious Runoff Depth=0.57"Subcatchment 1S: Sub Catchment A Flow Length=406' Tc=13.0 min CN=80 Runoff=5.10 cfs 0.328 af Runoff Area=14.460 ac 0.00% Impervious Runoff Depth=0.49"Subcatchment 2S: Sub Catchment B Flow Length=973' Tc=20.5 min CN=78 Runoff=6.80 cfs 0.590 af Total Runoff Area = 21.380 ac Runoff Volume = 0.918 af Average Runoff Depth = 0.52" 100.00% Pervious = 21.380 ac 0.00% Impervious = 0.000 ac Type II 24-hr 1 yr 24 hr Rainfall=2.01"South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 7HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Sub Catchment A Runoff = 5.10 cfs @ 12.06 hrs, Volume= 0.328 af, Depth= 0.57" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 1 yr 24 hr Rainfall=2.01" Area (ac) CN Description 6.250 78 Meadow, non-grazed, HSG D 0.670 96 Gravel surface, HSG D 6.920 80 Weighted Average 6.920 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 100 0.0700 0.17 Sheet Flow, Sheet Flow Grass: Dense n= 0.240 P2= 2.45" 1.4 141 0.0567 1.67 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 1.7 165 0.0545 1.63 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 13.0 406 Total Subcatchment 1S: Sub Catchment A Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 5 4 3 2 1 0 Type II 24-hr 1 yr 24 hr Rainfall=2.01" Runoff Area=6.920 ac Runoff Volume=0.328 af Runoff Depth=0.57" Flow Length=406' Tc=13.0 min CN=80 5.10 cfs Type II 24-hr 1 yr 24 hr Rainfall=2.01"South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 8HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Sub Catchment B Runoff = 6.80 cfs @ 12.16 hrs, Volume= 0.590 af, Depth= 0.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 1 yr 24 hr Rainfall=2.01" Area (ac) CN Description 14.420 78 Meadow, non-grazed, HSG D 0.040 96 Gravel surface, HSG D 14.460 78 Weighted Average 14.460 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.9 100 0.0550 0.15 Sheet Flow, Sheet Flow Grass: Dense n= 0.240 P2= 2.45" 3.2 319 0.0550 1.64 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 1.5 149 0.0537 1.62 Shallow Concentrated Flow, SCF Line 2 Short Grass Pasture Kv= 7.0 fps 1.5 132 0.0455 1.49 Shallow Concentrated Flow, SCF Line 3 Short Grass Pasture Kv= 7.0 fps 3.4 273 0.0366 1.34 Shallow Concentrated Flow, SCF Line 4 Short Grass Pasture Kv= 7.0 fps 20.5 973 Total Subcatchment 2S: Sub Catchment B Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 7 6 5 4 3 2 1 0 Type II 24-hr 1 yr 24 hr Rainfall=2.01" Runoff Area=14.460 ac Runoff Volume=0.590 af Runoff Depth=0.49" Flow Length=973' Tc=20.5 min CN=78 6.80 cfs Type II 24-hr 10 yr 24 hr Rainfall=3.75"South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 9HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.05 hrs, 721 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=6.920 ac 0.00% Impervious Runoff Depth=1.84"Subcatchment 1S: Sub Catchment A Flow Length=406' Tc=13.0 min CN=80 Runoff=17.47 cfs 1.059 af Runoff Area=14.460 ac 0.00% Impervious Runoff Depth=1.69"Subcatchment 2S: Sub Catchment B Flow Length=973' Tc=20.5 min CN=78 Runoff=26.42 cfs 2.036 af Total Runoff Area = 21.380 ac Runoff Volume = 3.096 af Average Runoff Depth = 1.74" 100.00% Pervious = 21.380 ac 0.00% Impervious = 0.000 ac Type II 24-hr 10 yr 24 hr Rainfall=3.75"South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 10HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Sub Catchment A Runoff = 17.47 cfs @ 12.05 hrs, Volume= 1.059 af, Depth= 1.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 10 yr 24 hr Rainfall=3.75" Area (ac) CN Description 6.250 78 Meadow, non-grazed, HSG D 0.670 96 Gravel surface, HSG D 6.920 80 Weighted Average 6.920 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 100 0.0700 0.17 Sheet Flow, Sheet Flow Grass: Dense n= 0.240 P2= 2.45" 1.4 141 0.0567 1.67 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 1.7 165 0.0545 1.63 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 13.0 406 Total Subcatchment 1S: Sub Catchment A Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 10 yr 24 hr Rainfall=3.75" Runoff Area=6.920 ac Runoff Volume=1.059 af Runoff Depth=1.84" Flow Length=406' Tc=13.0 min CN=80 17.47 cfs Type II 24-hr 10 yr 24 hr Rainfall=3.75"South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 11HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Sub Catchment B Runoff = 26.42 cfs @ 12.14 hrs, Volume= 2.036 af, Depth= 1.69" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 10 yr 24 hr Rainfall=3.75" Area (ac) CN Description 14.420 78 Meadow, non-grazed, HSG D 0.040 96 Gravel surface, HSG D 14.460 78 Weighted Average 14.460 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.9 100 0.0550 0.15 Sheet Flow, Sheet Flow Grass: Dense n= 0.240 P2= 2.45" 3.2 319 0.0550 1.64 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 1.5 149 0.0537 1.62 Shallow Concentrated Flow, SCF Line 2 Short Grass Pasture Kv= 7.0 fps 1.5 132 0.0455 1.49 Shallow Concentrated Flow, SCF Line 3 Short Grass Pasture Kv= 7.0 fps 3.4 273 0.0366 1.34 Shallow Concentrated Flow, SCF Line 4 Short Grass Pasture Kv= 7.0 fps 20.5 973 Total Subcatchment 2S: Sub Catchment B Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 10 yr 24 hr Rainfall=3.75" Runoff Area=14.460 ac Runoff Volume=2.036 af Runoff Depth=1.69" Flow Length=973' Tc=20.5 min CN=78 26.42 cfs Type II 24-hr 100 yr 24 hr Rainfall=5.83"South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 12HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.05 hrs, 721 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=6.920 ac 0.00% Impervious Runoff Depth=3.63"Subcatchment 1S: Sub Catchment A Flow Length=406' Tc=13.0 min CN=80 Runoff=34.22 cfs 2.092 af Runoff Area=14.460 ac 0.00% Impervious Runoff Depth=3.43"Subcatchment 2S: Sub Catchment B Flow Length=973' Tc=20.5 min CN=78 Runoff=54.05 cfs 4.132 af Total Runoff Area = 21.380 ac Runoff Volume = 6.224 af Average Runoff Depth = 3.49" 100.00% Pervious = 21.380 ac 0.00% Impervious = 0.000 ac Type II 24-hr 100 yr 24 hr Rainfall=5.83"South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 13HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Sub Catchment A Runoff = 34.22 cfs @ 12.05 hrs, Volume= 2.092 af, Depth= 3.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 100 yr 24 hr Rainfall=5.83" Area (ac) CN Description 6.250 78 Meadow, non-grazed, HSG D 0.670 96 Gravel surface, HSG D 6.920 80 Weighted Average 6.920 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.9 100 0.0700 0.17 Sheet Flow, Sheet Flow Grass: Dense n= 0.240 P2= 2.45" 1.4 141 0.0567 1.67 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 1.7 165 0.0545 1.63 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 13.0 406 Total Subcatchment 1S: Sub Catchment A Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100 yr 24 hr Rainfall=5.83" Runoff Area=6.920 ac Runoff Volume=2.092 af Runoff Depth=3.63" Flow Length=406' Tc=13.0 min CN=80 34.22 cfs Type II 24-hr 100 yr 24 hr Rainfall=5.83"South Parcel Post Construction - 09.05.24 Printed 9/5/2024Prepared by PW Grosser Consulting Page 14HydroCAD® 10.20-4b s/n 11158 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Sub Catchment B Runoff = 54.05 cfs @ 12.13 hrs, Volume= 4.132 af, Depth= 3.43" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.05 hrs Type II 24-hr 100 yr 24 hr Rainfall=5.83" Area (ac) CN Description 14.420 78 Meadow, non-grazed, HSG D 0.040 96 Gravel surface, HSG D 14.460 78 Weighted Average 14.460 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.9 100 0.0550 0.15 Sheet Flow, Sheet Flow Grass: Dense n= 0.240 P2= 2.45" 3.2 319 0.0550 1.64 Shallow Concentrated Flow, SCF Line 1 Short Grass Pasture Kv= 7.0 fps 1.5 149 0.0537 1.62 Shallow Concentrated Flow, SCF Line 2 Short Grass Pasture Kv= 7.0 fps 1.5 132 0.0455 1.49 Shallow Concentrated Flow, SCF Line 3 Short Grass Pasture Kv= 7.0 fps 3.4 273 0.0366 1.34 Shallow Concentrated Flow, SCF Line 4 Short Grass Pasture Kv= 7.0 fps 20.5 973 Total Subcatchment 2S: Sub Catchment B Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 60 55 50 45 40 35 30 25 20 15 10 5 0 Type II 24-hr 100 yr 24 hr Rainfall=5.83" Runoff Area=14.460 ac Runoff Volume=4.132 af Runoff Depth=3.43" Flow Length=973' Tc=20.5 min CN=78 54.05 cfs DRS2314 – STORMWATER POLLUTION PREVENTION PLAN (SWPPP) P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • MONTICELLO • SYRACUSE • SHELTON, CT Water Quality and Runoff Reduction Calculations 𝑊𝑃𝑣=𝑃∗𝑃𝑣∗𝐴 12 where: WQv = Water Quality Volume (in acre-feet) P = 90% Rainfall Event Number Rv = 0.05 + 0.009 (I), where I is percent impervious cover A = site area in acres (contributing area) 𝑃𝑃𝑣𝑚𝑖𝑚=𝑃∗𝑃̅𝑣∗𝐴𝑖𝑐∗𝑃 12 where: RRvmin = Minimum runoff reduction volume required from impervious area (acre-feet) Rv = 0.05 + 0.009 (I), where I is 100% impervious Aic = Total area of new impervious cover S = Hydrologic Soil Group (HSG) Specific Reduction Factor (S) 𝐼=0.78 21.38 ∗100 =3.65% 𝑃𝑣=0.05 +0.009(3.65)=0.083 𝑊𝑃𝑣=1.0𝑖𝑛∗0.083 ∗21.38 𝑎𝑐. 12 =𝟎.𝟎𝟑𝟖 𝒂𝒄.−𝒇𝒕 𝑃̅𝑣=0.05 +0.009(100)=0.95 𝑃𝑃𝑣𝑚𝑖𝑚=1.0𝑖𝑛∗0.95 ∗0.78 𝑎𝑐.∗0.55 12 =𝟎.𝟎𝟑𝟑 𝒂𝒄.−𝒇𝒕 JOSEPH C MILLER TM#: 31.-1-12.212 JAMES R YOUNG TM#: 26.-1-25.22 JOSEPH C MILLER TM#: 31.-1-12.22 JOSEPH C MILLER TM#: 31.-1-12.211 GENEVIEVE VANBENSCHOTEN TM#: 31.-1-13.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.4 SAMUEL P SWEENEY III 31.-1-19.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.6 SAMUEL P SWEENEY III 31.-1-19.51 JOHN YOUNG TM#: 31.-1-12.1 F&M LAND LLC TM#: 26.-1-24.1 S O U T H M A I N S T R E E T E X T . FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 ROBERT J COSTA TM#: 31.-1-9 DARCY L WYLLIE TM#: 31.-1-20 SUBCATCHMENT B TIME OF CONCENTRATION FLOW PATH, Tc = 15.6 MINUTES SUBCATCHMENT B SUBCATCHMENT A SUBCATCHMENT DIVISION LIMITS OF DISTURBANCE, APPROX. 21.02 AC. SUBCATCHMENT A TIME OF CONCENTRATION FLOW PATH, Tc = 15.3 MINUTES DP-1 DP-2 RPV 11/15/23 MTS 1" = 100' CONDITIONS WATERFLOW PRECONSTRUCTION SWP-100 1 FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted PW G C F I L E N A M E : J : \ P r o j e c t s A - D \ D R S \ 2 3 1 4 - S o u t h M a i n S t r e e t S o u t h P a r c e l \ C A D \ S o u t h M a i n S t r e e t S o u t h P a r c e l 0 9 . 0 4 . 2 0 2 4 P r e P o s t C o n s t r u c t i o n . d w g ( P R E C O N S T R U C T I O N ) PL O T D A T E / T I M E : S e p 0 5 , 2 0 2 4 - 3 : 1 6 p m B y : r v a u g h n Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 PRE CONSTRUCTION COVERTYPES SUBCATCHMENT COVERTYPE AREA A WOODS, FAIR, HSG D; CN = 79 3.88 AC. MEADOW NON-GRAZED, HSG D; CN = 78 3.04 AC. B WOODS, FAIR, HSG D; CN = 79 1.79 AC. MEADOW NON-GRAZED, HSG D; CN = 78 12.67 AC. TOTAL 21.38 AC. PRE-CONSTRUCTION WATERFLOW LEGEND DRAIN LINE TIME OF CONCENTRATION DRAIN LINE LIMITS OF DISTURBANCE CATCHMENT DIVISION 2 JOSEPH C MILLER TM#: 31.-1-12.212 JAMES R YOUNG TM#: 26.-1-25.22 JOSEPH C MILLER TM#: 31.-1-12.22 JOSEPH C MILLER TM#: 31.-1-12.211 GENEVIEVE VANBENSCHOTEN TM#: 31.-1-13.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.4 SAMUEL P SWEENEY III 31.-1-19.2 DOUGLAS VANBENSCHOTEN TM#: 31.-1-19.6 SAMUEL P SWEENEY III 31.-1-19.51 JOHN YOUNG TM#: 31.-1-12.1 F&M LAND LLC TM#: 26.-1-24.1 S O U T H M A I N S T R E E T E X T . FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 FREDRIC JAY PORTZLINE TM#: 31.-1-7.1 ROBERT J COSTA TM#: 31.-1-9 DARCY L WYLLIE TM#: 31.-1-20 11 0 0 1 0 6 0 1050 1 0 7 0 1 0 8 0 10 9 0 110 0 111 0 11 2 0 1120 1100 1110 1090 10 8 0 10 7 0 1 0 6 0 1 0 5 0 1 0 5 0 1070 1080 1090 1100 1110 1120 1130 110 0 10 5 0 SUBCATCHMENT A TIME OF CONCENTRATION FLOW PATH, Tc = 13.0 MINUTES SUBCATCHMENT B TIME OF CONCENTRATION FLOW PATH, Tc = 20.5 MINUTES SUBCATCHMENT B SUBCATCHMENT A SUBCATCHMENT DIVISION LIMITS OF DISTURBANCE, APPROX. 21.38 AC. DP-1 DP-2 DP-3 RPV 11/15/23 MTS 1" = 100' CONDITIONS WATERFLOW POST CONSTRUCTION SWP-101 2 FO R P E R M I T T I N G PUR P O S E S O N L Y NOT F O R C O N S T R U C T I O N Drawing Number: Sheet of PWGC Project Number: Title of Drawing: Client: Regulatory Reference Number: County Tax Map Number: Number Revision Description Revision Date Project: Project Address: Unauthorized alteration or addition to this drawing and related documents is a violation of Section 7209 of the New York State Education Law CONSULTANTS Approved By Drawn By Designed By Scale Date Created Date Submitted PW G C F I L E N A M E : J : \ P r o j e c t s A - D \ D R S \ 2 3 1 4 - S o u t h M a i n S t r e e t S o u t h P a r c e l \ C A D \ S o u t h M a i n S t r e e t S o u t h P a r c e l 0 9 . 0 4 . 2 0 2 4 P r e P o s t C o n s t r u c t i o n . d w g ( P O S T C O N S T R U C T I O N ) PL O T D A T E / T I M E : S e p 0 5 , 2 0 2 4 - 3 : 1 6 p m B y : r v a u g h n Contract Number: 1 2 3 4 5 6 7 630 Johnson Avenue. ●Suite 7 Bohemia ●NY ●11716-2618 Phone: (631) 589-6353 ●Fax: (631) 589-8705 E-mail: INFO@PWGROSSER.COM CLIENT DRIVEN SOLUTIONS PWGC P.W. GROSSER CONSULTING INC. NY GROTON II (SOUTH MAIN STREET), LLC P.O. BOX 384 CALLICOON, NEW YORK 12783 SOUTH MAIN STREET, EXT. SOUTH PARCEL SOLAR FARM CONCEPTUAL PLAN SOUTH MAIN STREET TOWN OF GROTON TOMPKINS COUNTY, NEW YORK 31-1-12.1 --- --- 12 DRS2314 CLIENT REVIEW 2023-11-29 TOWN SUBMISSION 2024-01-29 TOWN SUBMISSION 2024-04-18 TOWN COMMENT RESPONSE 2024-05-28 TOWN COMMENT RESPONSE 2024-07-22 POST CONSTRUCTION COVERTYPES SUBCATCHMENT COVERTYPE AREA A GRAVEL SURFACE, HSG D; CN = 96 0.67 AC. MEADOW NON-GRAZED, HSG D; CN = 78 6.25 AC. B GRAVEL SURFACE, HSG D; CN = 96 0.04 AC. MEADOW NON-GRAZED, HSG D; CN = 78 14.42 AC. TOTAL 21.38 AC. POST-CONSTRUCTION WATERFLOW LEGEND DRAIN LINE TIME OF CONCENTRATION DRAIN LINE LIMITS OF DISTURBANCE CATCHMENT DIVISION 2 STORMWATER POLLUTION PREVENTION PLAN P.W. GROSSER CONSULTING, INC • P.W. GROSSER CONSULTING ENGINEER & HYDROGEOLOGIST, PC 631.589.6353 • WWW.PWGROSSER.COM • PWGC.INFO@PWGROSSER.COM BOHEMIA • MANHATTAN • SARATOGA SPRINGS • SYRACUSE • SHELTON, CT APPENDIX J DRAINAGE SYSTEM OPERATION, MAINTENANCE AND MANAGEMENT INSPECTION CHECKLIST Project: Location: Site Status: Date: Time: Inspector: Comments: Actions to be Taken: COMMENTS Inspect for ponding, remove sediment and debris Drainage Landscape Operation, Maintenance and Management Inspection Checklist MAINTENANCE ITEM Routine mowing, vegetation care and upkeep. SATISFACTORY / UNSATISFACTORY 1. Site Condition (Bi-weekly) Sediment accumulation does not yet require cleanout Trash and sediment removal 2. Drainage Structure Attention (Monthly) 3. Sediment Cleanout (Monthly) No evidence of sedimentation build up Minor regrading and soil surface repair Project: Location: Site Status: Date: Time: Inspector: Comments: Actions to be Taken: COMMENTS Landscape is properly maintained via mowing or weeding Detention Pond and Culvert Operation, Maintenance and Management Inspection Checklist MAINTENANCE ITEM Surrounding area clear of debris SATISFACTORY / UNSATISFACTORY 1. Debris Cleanout (Monthly) Sediment accumulation does not yet require cleanout Inlet and Outlet area clean of debris 2. Landscape Maintenance (Monthly) 3. Sediment Cleanout (Monthly) No evidence of sedimentation in pond No sign of illegal dumping