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HomeMy WebLinkAbout20230267 78 Church Site Plan Stormwater Prevention 2023 10 18 Stormwater Pollution Prevention Plan for: 78 Church Street Redevelopment Owner/Operator(s): Spring City Development Group 18 Division Street Saratoga Springs, NY 12866 SWPPP Contact(s): The LA Group, PC 40 Long Alley Saratoga Springs, NY 12866 1-518-587-8100 1-518-587-0180 SWPPP Preparation Date: October 13, 2023 Table of Contents 1.0 PERMIT OVERVIEW AND REQUIREMENTS ..................................................................... 1  1.1 PERMIT OVERVIEW ...................................................................................................................... 1  1.2 SWPPP UPDATE .......................................................................................................................... 1  2.0 SITE ASSESSMENT, EVALUATION AND PLANNING ....................................................... 2  2.1 PROJECT LOCATION ..................................................................................................................... 2  2.2 PRE-DEVELOPMENT CONDITIONS ................................................................................................ 2  2.3 PROJECT SCOPE ............................................................................................................................ 2  2.4 SOILS ........................................................................................................................................... 2  3.0 EROSION AND SEDIMENT CONTROL ................................................................................. 2  3.1 EROSION AND SEDIMENT CONTROL PRACTICES ........................................................................... 2  3.2 EROSION AND SEDIMENT CONTROL DRAWINGS ........................................................................... 3  3.3 CONSTRUCTION SEQUENCE OF OPERATIONS ................................................................................ 3  3.4 EROSION AND SEDIMENT CONTROL PRACTICE MAINTENANCE .................................................... 4  3.5 EROSION AND SEDIMENT CONTROL INSPECTION.......................................................................... 4  3.6 CONTRACTOR SEQUENCE FORM .................................................................................................. 5  4.0 POST CONSTRUCTION STORMWATER MANAGEMENT PRACTICES ...................... 5  4.1 STORMWATER MANAGEMENT CONTROLS ................................................................................... 5  5.0 POST CONSTRUCTION STORMWATER MAINTENANCE .............................................. 6  5.1 MECHANISM OF OPERATION AND MAINTENANCE ........................................................................ 6  5.2 MAINTENANCE TO BE PERFORMED .............................................................................................. 6  6.0 CONSTRUCTION WASTE ........................................................................................................ 7  7.0 TEMPORARY STABILIZATION FOR FROZEN CONDITIONS ....................................... 7  8.0 SPILL PREVENTION PRACTICES ......................................................................................... 8  9.0 CERTIFICATIONS .................................................................................................................... 12  10.0 DEFINITIONS ............................................................................................................................ 15  Appendices A Soil Survey and Map Set – Soil Survey, Site Preparation and Demolition, Grading and Utility Plan B Stormwater Calculations C SWPPP Inspection Forms –SWPPP Inspection Report D Other SWPPP Forms – Construction Sequence, SWPPP Plan Changes, Spill Response Form, Stormwater Management Practice Maintenance Log Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 1 1.0 PERMIT OVERVIEW AND REQUIREMENTS 1.1 Permit Overview City of Saratoga Springs requires non-residential and mixed-use development projects disturbing between 0.50 acre and 0.99 acres prepare a Stormwater Pollution Prevention Plan (SWPPP). Section 17.4.A.4 of the Saratoga Springs Unified Development Ordinance states: “Full SWPPP is required for nonresidential and mixed-use development disturbing between 0.50 acre and 0.99 acre. Post-construction requirements are limited to 100% of the Runoff Reduction volume (RRv) from new impervious cover and 50% of the RRv from existing/redeveloped imperious cover using accepted RRv criteria and methods as prescribed by the New York State Stormwater Management Design Manual.” The 78 Church Street project will disturb 0.57 acres and therefore requires the preparation of a SWPPP. This SWPPP is prepared to inform the landowner and construction personnel of the measures to be implemented for controlling runoff and pollutants from the site during and after construction activities. The operator is responsible to maintain onsite in a secure location that is accessible during normal working hours to an individual performing a compliance inspection, the following information:  the SWPPP,  All inspection reports. 1.2 SWPPP Update The permittee identified in this SWPPP shall amend the SWPPP under the following conditions:  Whenever the current provisions prove to be ineffective in minimizing pollutants in stormwater discharge from the site  Whenever there is a change in design, construction or operation that could have an effect on the discharge of pollutants  To address issues or deficiencies identified during an inspection by the qualified inspector, the Department or other regulatory authority  To identify a new subcontractor or owner that will implement any part of the SWPPP. Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 2 If modifications are required to the post-stormwater management practices the City of Saratoga Springs must be notified in writing of any planned amendments or modifications to the post-construction stormwater management practice component of the SWPPP. 2.0 SITE ASSESSMENT, EVALUATION AND PLANNING 2.1 Project Location The project is located at 78 Church Street in the City of Saratoga Springs, Saratoga County, NY 12866. The project site location is located to the south of Church Street between West Harrison Street and Clinton Street. 2.2 Pre-Development Conditions The site includes an existing commercial building with associated parking. Stormwater runoff from the site flows to the City closed drainage system in Church Street and Clinton Street. Surface conditions consist of grass and impervious parking/buildings roofs. 2.3 Project Scope The project includes the construction of a 15,500 sq. ft. multi-use building and associated parking. The Project will disturb approximately +/-0.57 acres. 2.4 Soils The USDA/NRCS soil survey map for this site shows Windsor Loamy Sands. These soils are classified as hydrologic soil group ‘A’. Soil information results can be found in Appendix A. 3.0 EROSION AND SEDIMENT CONTROL 3.1 Erosion and Sediment Control Practices Temporary Structural Practices  Compost Filter Sock  Dust Control  Construction Entrance Permanent Structural Controls  Grading Temporary Stabilization Practices (including vegetative practices)  Seed and mulch bare soil areas within 14 days of disturbance unless construction will resume in that area within 21 days. Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 3 Permanent Stabilization Practices (including vegetative practices)  Seed and mulch all disturbed areas. Slopes that are 3:1 or steeper should receive a Rolled Erosion Control Product (RECP), sodding, and or hydro- seeding a homogenous mixture of wood fiber mulch with tackifying agent. Refer to Construction Drawings for detailed information on each practice. 3.2 Erosion and Sediment Control Drawings Erosion and Sediment Control practices are shown on the Construction Drawings included in Appendix A. 3.3 Construction Sequence of Operations  Temporary structural erosion controls shall be installed prior to earthwork as per the attached plans.  Areas to be undisturbed for more than 14 days shall be temporarily stabilized by seeding.  Disturbed areas shall be reseeded and mulched immediately after final contours are re-established and no more than 14 days after the completion of construction at that site.  Temporary erosion control devices shall not be removed until the area served is stabilized by the growth of vegetation and the area is certified as being stabilized by the Erosion Control Inspector. Construction Activities Start  Stop Sequence must include major items such as, but not limited to, excavation and grading, utility and infrastructure installation and any other activity resulting in soil disturbance. Include installation of erosion and sediment control practices and timing of installation. Install compost filter sock and stabilized construction entrance prior to any site disturbance. Maintain erosion control measures for duration of site disturbances. Week 1 Demolish existing building and parking Weeks 1-4 Building Construction Week 4- completion Parking and Drives Week 11-13 Remove erosion and sediment control measures upon stabilization of contributing areas. At completion 80% Germination Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 4 3.4 Erosion and Sediment Control Practice Maintenance Temporary erosion and sediment control practices will need to be maintained frequently during construction. It is the responsibility of the operator to inspect and maintain the temporary controls so that they are working efficiently. The operator needs to pay close attention to SWPPP Inspection Reports that will advise of needed maintenance. Captured sediment will have to be removed periodically from each practice in order for the control to function properly. Temporary erosion and sediment control practice maintenance needs are listed below:  Compost filter sock – accumulated sediment shall be removed when it reaches half the above ground height of the sock.  Stabilized construction entrance – entrance shall be maintained in a condition which shall prevent tracking. This may require periodic top dressing with additional aggregate. All sediment tracked onto or spilled on public rights of way shall be removed immediately. When necessary, wheels must be cleaned to remove sediment prior to entrance on public rights of way. When washing is required, it shall be done in an area stabilized with aggregate. 3.5 Erosion and Sediment Control Inspection  A qualified inspector shall conduct an assessment of the site prior to the commencement of construction and certify in an inspection report that the appropriate erosion and sediment controls described in the SWPPP have been adequately installed to ensure overall preparedness of the site for commencement of construction.  This qualified inspector must be a Licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), 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 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. After receiving the initial training, the qualified inspector shall receive 4 hours of training every 3 years.  The day-to-day erosion control activities on the site will be monitored by the construction manager. The qualified inspector and his crews will make at least one inspection every seven (7) days of erosion control devices, and non-stabilized areas during construction. A maintenance inspection report will be completed by the qualified inspector after each inspection. The report form to be completed by the inspector is attached in Appendix C. Reports should be compiled and maintained on-site in the SWPPP 3-ring binder.  All measures will be maintained in good working order; if repair is necessary, it will be initiated within 24 hours of report. The qualified Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 5 inspector shall take photographs of any needed repairs and also photograph when the repairs are completed. These photographs will be time and date stamped and attached to the weekly inspection report.  Seeded and planted areas will be inspected for bare spots, washouts, and healthy growth. If necessary, spot reseeding or sodding will be implemented.  A trained contractor will be an employee from the contracting company responsible for the implementation of the SWPPP. This person will be onsite when any soil disturbing activities are being conducted. The trained contractor must have received 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. After receiving the initial training, the qualified inspector shall receive 4 hours of training every 3 years. This trained contractor cannot conduct the regular SWPPP compliance inspections unless they meet the qualified inspector qualifications. 3.6 Contractor Sequence Form The operator shall prepare a summary of construction status using the Construction Sequence Form (included in Appendix D) once every month. Significant deviations to the sequence and reasons for those deviations (i.e. weather, subcontractor availability, etc.), shall be noted by the contractor. The schedule shall be used to record the dates for initiation of construction, implementation of erosion control measures, stabilization, etc. A copy of this table will be maintained at the construction site and updated. 4.0 POST CONSTRUCTION STORMWATER MANAGEMENT PRACTICES 4.1 Stormwater Management Controls Saratoga Springs regulations require projects to reduce 100% of the runoff reduction volume (RRv) from new impervious cover, and 50% of the RRv from existing redeveloped impervious cover. The project is proposing to construct 21,106 s.f. of impervious area, which is a +/- 1,600 square foot reduction in impervious area from pre-development conditions. Chapter 4 of the New York State Stormwater Management Design Manual states that the minimum RRv from impervious area shall be 55% of the water quality volume (WQv) for sites located within hydrologic soil group ‘A’. The WQv for the project site is 1,922 cf, see Appendix B for calculations. The NYSDEC minimum RRv based on the hydrologic soil group of the site is 1,057 cubic feet. Saratoga Springs requires sites to meet 50% of the RRv from existing redeveloped impervious cover. Therefore, the City required RRv for the project is 529 cf. Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 6 A 3,060 square foot green roof will be constructed to meet the City RRv requirement, which provides a runoff reduction volume of 535 cf. See Appendix B for stormwater calculations. As per Saratoga Springs regulations, the project does not need to meet NYSDEC water quality, channel protection, overbank flood control, or extreme flood control requirements. 5.0 POST CONSTRUCTION STORMWATER MAINTENANCE 5.1 Mechanism of Operation and Maintenance Spring City Development Group will be responsible for the long-term operation and maintenance of the stormwater management practices for the life of the site. 5.2 Maintenance to be Performed Post-construction maintenance for this project will consist of regular inspections of permanent stormwater management facilities. These maintenance procedures are essential to assure continual performance of the stormwater management practices on your site. During the inspection and any maintenance activity to the stormwater management practices, the responsible party should fill out an inspection and maintenance log (Appendix C) to record that it was done. All post construction stormwater management facilities must be inspected annually by a qualified professional, a report prepared and submitted to the City Engineer documenting the inspections as well as the maintenance activities that were completed during the prior year. The City of Saratoga Springs shall approve a formal maintenance and inspection agreement in accordance with City Code Chapter 242 for stormwater management facilities to ensure the practices will be properly operated and maintained in accordance with the long-term operation and maintenance plans. This agreement shall be binding on all subsequent landowners and recorded in the office of the County Clerk as a deed restriction on the property. Green Roof  Maintenance may include watering, fertilizing and weeding as needed, specifically during the first year.  Roof drains should be checked after each major storm event and cleaned as needed.  Clean trash and debris out of system as necessary  Dead or diseased vegetation should be replaced  Areas devoid of mulch shall be re-mulched on an annual basis Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 7 6.0 CONSTRUCTION WASTE Waste Materials: All waste materials generated during construction will be disposed at a suitable landfill or transfer station. Hazardous Waste: The project will not be a generator of hazardous waste and it is not anticipated that any hazardous waste will be generated during construction. If there are any materials generated, a licensed hazardous waste carrier will be contracted to dispose the hazardous material at a suitable disposal site. If hazardous materials are discovered during construction, the work will be stopped until the issue is resolved. Waste: Portable sanitary facilities will be made available to construction personnel and will be serviced regularly. 7.0 TEMPORARY STABILIZATION FOR FROZEN CONDITIONS The following temporary stabilization measures MUST be performed when construction is occurring during winter/frozen ground conditions. The following requirements do not supersede any other requirements of this SWPPP as they apply to non-frozen ground conditions.  Perimeter erosion control MUST still be installed prior to earthwork disturbance as per this SWPPP.  Any areas that cannot be seeded to turf by October 1st or earlier will receive a temporary seeding. The temporary seeding will consist of winter rye seeded at the rate of 120 pounds per acre (2.5 pounds per 1,000 square feet) or stabilized as per the temporary stabilization for winter construction/frozen conditions.  Any area of disturbance that will remain inactive for a period of 14 consecutive days MUST be mulched. This includes any previously disturbed areas that are covered with snow.  Mulch MUST consist of loose straw applied at the rate of 2 to 3 bales (90 to 100 pounds) per thousand square feet.  Mulch MUST be applied uniformly over the area of bare soil or bare soil that is covered with snow. For the latter condition, mulch MUST be applied on top of snow.  Using a tracked vehicle, mulch MUST be crimped into the bare soil/snow. The tracked vehicle MUST be driven across the mulched areas in at least two directions to maximize crimping of mulch into the soil/snow.  If mulch gets blown off an area to a significant degree, the site inspector WILL require that an area be re-mulched in accordance with Items 2 through 5 above, and this area WILL be included on the inspection checklist for the next inspection. Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 8  If a particular area repeatedly experiences loss of mulch due to wind, then the inspector WILL require that an alternative method be used to secure the mulch in place. Such alternatives may include the use of netting, tackifier or other methods deemed appropriate by the inspector.  During periods when snow is melting and/or surface soils are thawing during daytime hours, mulched areas MUST be re-tracked (crimped) as per Item 5 above at least once every seven days, more frequently if directed by the inspector. Additional mulch may be required to obtain complete coverage of an area. Biodegradable erosion control matting may be required on steeper slopes.  Additional stabilization measures for non-frozen ground conditions described in this SWPPP WILL be implemented at the time deemed appropriate by the inspector. During the winter season, if a site has been stabilized and soil disturbing activities have been suspended for the winter, weekly inspections can be suspended. However, monthly inspections must still be conducted. All normal weekly inspections must resume when soil disturbing activities resume. 8.0 SPILL PREVENTION PRACTICES Good Housekeeping and Material Management Practices The following good housekeeping and material management practices will be followed on site during the construction project to reduce the risk of spills or other accidental exposure of materials and substances to stormwater runoff.  Materials will be brought on site in the minimum quantities required.  All materials stored on site will be stored in a neat, orderly manner in their appropriate containers, and if possible, under a roof or other enclosure.  Products will be kept in their original containers with the original manufacturer’s label.  Substances will not be mixed with one another unless recommended by the manufacturer.  Whenever possible, all of a product will be used up before disposal.  Manufacturer’s recommendations for proper use and disposal will be followed.  The construction manager or his designee will inspect regularly to ensure proper use and disposal of materials on site.  The contractor shall prohibit washing of tools, equipment, and machinery in or within 100 feet of any watercourse or wetland.  All above grade storage tanks are to be protected from vehicle damage by temporary barriers. Inventory for Pollution Prevention Plan Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 9 The materials and substances listed below are expected to be on-site during construction.  Petroleum for fueling vehicles will be stored in above ground storage tanks. Tanks will either be steel with an enclosure capable of holding 110% of the storage tank volume or of a Con-Store, concrete encased type typically employed by NYSDOT. Hydraulic oil and other oils will be stored in their original containers. Concrete and asphalt will be stored in the original delivery trucks.  Fertilizer may be stored on site in its original container for a short period of time prior to seeding. Original containers will be safely piled on pallets or similar devices to protect from moisture.  Paints and other similar materials will be stored in their original containers and all empty containers will be disposed of in accordance with label directions.  Portable sanitary facilities, which contain chemical disinfectants (deodorants) will be located on-site, with the disinfectants held in the tank of the toilet. Hazardous Products These practices are used to reduce the risks associated with hazardous materials.  Products will be kept in original containers unless they are not re- sealable.  Original labels and material safety data sheets will be retained; they contain important product information.  If surplus product must be disposed of, manufacturers’ or local and State recommended methods for proper disposal will be followed. Spill Prevention The following product specific practices will be followed on site. Petroleum Products:  Construction personnel should be made aware that emergency telephone numbers are located in this SWPPP.  The contractor shall immediately contact NYSDEC in the event of a spill, and shall take all appropriate steps to contain the spill, including construction of a dike around the spill and placing absorbent material over this spill.  The contractor shall instruct personnel that spillage of fuels, oils, and similar chemicals must be avoided and will have arranged with a qualified spill remediation company to serve the site.  Fuels, oils, and chemicals will be stored in appropriate and tightly capped containers. Containers shall not be disposed of on the project site. Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 10  Fuels, oils, chemicals, material, equipment, and sanitary facilities will be stored/located away from trees and at least 100 feet from streams, wells, wet areas, and other environmentally sensitive sites.  Dispose of chemical containers and surplus chemicals off the project site in accordance with label directions.  Use tight connections and hoses with appropriate nozzles in all operations involving fuels, lubricating materials or chemicals.  Use funnels when pouring fuels, lubricating materials or chemicals.  Refueling and cleaning of construction equipment will take place in parking areas to provide rapid response to emergency situations.  All on-site vehicles will be monitored for leaks and receive regular preventative maintenance to reduce the chance of leakage. Any vehicle leaking fuel or hydraulic fuel will be immediately scheduled for repairs and use will be discontinued until repairs are made. Fertilizers:  Fertilizer will be stored in its original containers on pallets with water resistant coverings.  Proper delivery scheduling will minimize storage time.  Any damaged containers will be repaired immediately upon discovery and any released fertilizer recovered to the fullest extent practicable. Paints:  All containers will be tightly sealed and stored when not required for use.  Excess paint will not be discharged to the storm water system or wastewater system but will be properly disposed of according to manufacturers’ instructions or State and local regulations. Concrete Trucks:  Concrete trucks will be allowed to wash out or discharge surplus concrete or drum wash water only at designated locations on site. Asphalt Trucks:  Asphalt trucks shall not discharge surplus asphalt on the site. Spill Control Practices In addition to the good housekeeping and material management practices discussed in the previous sections of this plan, the following practices will be followed for spill prevention and cleanup. The construction manager or site superintendent responsible for the day-to-day site operations will be the spill prevention and cleanup coordinator. He will designate at least three other site personnel who will receive spill prevention and cleanup training. These individuals will each become responsible for a particular phase Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 11 of prevention and cleanup. The names of responsible spill personnel will be posted in the material storage area and in the onsite construction office or trailer.  Manufacturers’ recommended methods for spill cleanup will be clearly posted and site personnel will be made aware of the procedures and the location of the information and cleanup supplies. Any spill in excess or suspected to be in excess of two gallons will be reported to the NYSDEC Regional Spill Response Unit. Notification to the NYSDEC (1-800-457- 7362) must be completed within two hours of the discovery of the spill.  Materials and equipment necessary for spill cleanup will be kept in the material storage area onsite. Equipment and materials will include but not be limited to absorbent pads, brooms, dust pans, mops, rags, gloves, goggles, activated clay, sand, sawdust, and plastic and metal trash containers specifically for this purpose.  All spills will be cleaned up immediately after discovery.  The spill area will be kept well ventilated and personnel will wear appropriate protective clothing to prevent injury from contact with spilled substance.  Spills of toxic or hazardous material will be reported to the appropriate State or local government agency, regardless of the size Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 12 9.0 CERTIFICATIONS Preparer Certification of Compliance with Federal, State, and Local Regulations This Stormwater Pollution Prevention Plan was prepared in accordance with the City of Saratoga Springs regulations. Name: Douglas Heller Title: Professional Engineer Signature: Date: Company Name: The LA Group, PC Owner Pollution Prevention Plan Certification I certify under penalty of law that this document and all attachments were prepared under my direction or supervision to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who are directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that false statements made herein are punishable as a Class A misdemeanor pursuant to Section 210.45 of the Penal Law. I understand that SWPPP requires site inspections be conducted by a qualified professional once every seven (7) days. These inspections shall be performed by a qualified professional as defined in the SWPPP. The Owner/Operator will be held financially responsible for any and all fines related to work tasks that are not specified by the Contractor(s)/Subcontractor(s) below. Name: Title: Signature: Date: Company Name: Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 13 Contractor and Subcontractor Certification 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. 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 proceeding. Name Title Signature Date Company Name Address City, State, Zip Phone Number SWPPP Components You Are Responsible For 1. 2. 3. 4. 5. 6. Name of Trained Individual Responsible for SWPPP Implementation Title Signature of Trained Individual Responsible for SWPPP Implementation Date Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 14 Contractor and Subcontractor Certification 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. 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 proceeding. Name Title Signature Date Company Name Address City, State, Zip Phone Number SWPPP Components You Are Responsible For 1. 2. 3. 4. 5. 6. Name of Trained Individual Responsible for SWPPP Implementation Title Signature of Trained Individual Responsible for SWPPP Implementation Date Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 15 10.0 DEFINITIONS 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, tree removal, stump removal and/or brush 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 Phasing Plan - a plan designed to construct particular portions of an individual project at different times. Phasing is often used when a project is very large to limit the disturbance at a single time to 5 acres per phase. Erosion and Sediment Control Practices – temporary measures installed prior to construction and maintained during construction to temporarily treat any stormwater runoff. Once construction is completed and post-construction stormwater management practices are installed and the site is stabilized, the erosion and sediment control practices are removed from the site. 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 pavement. Green Infrastructure – in the context of stormwater management, the term green infrastructure includes a wide array of practices at multiple scales to manage and treat stormwater, maintain and restore natural hydrology and ecological function by infiltration, evapotranspiration, capture and reuse of stormwater, and establishment of natural vegetative features. On a regional scale, green infrastructure is the preservation and restoration of natural landscape features, such as forests, floodplains and wetlands, coupled with policies such as infill and redevelopment that reduce overall imperviousness in a watershed or ecoregion. On the local scale green infrastructure consist of site and neighborhood specific practices and runoff reduction techniques. Such practices essentially result in runoff reduction and or establishment of habitat areas with significant utilization of soils, vegetation, and engineered media rather than traditional hardscape collection, conveyance and storage structures. Some examples include green roofs, trees and tree boxes, pervious pavement, rain gardens, vegetated swales, planters, reforestation and protection and enhancement of riparian buffers and floodplains. 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. Stormwater Pollution Prevention Plan 78 Church Street Redevelopment Project Number-2022062 Page 16 Owner or Operator – means the person, persons or legal entity which owns or leases the property on which the construction activity is occurring; and/or an entity that has operational control over the construction plans and specifications, including the ability to make modifications to the plans and specifications. Post-Construction Stormwater Management Practices – permanent devices constructed or installed onsite to treat stormwater from a site when construction is completed. Qualified Inspector - a Licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), 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 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. After receiving the initial training, the qualified inspector shall receive 4 hours of training every 3 years. Sequence of Operations – the individual steps and their specific order which are undertaken in order to construct a project or a given phase of a project from beginning to end. (i.e. clearing, grading, foundation work, landscaping, etc.) Stormwater Pollution Prevention Plan (SWPPP) - a report that is compiled providing detailed information about the proposed activity and the specifics to how the stormwater will be managed during construction and after construction is completed. 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). Trained Contractor – means an employee from a contracting (construction) company responsible for the day to day implementation of the SWPPP. The trained contractor must have received 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. After receiving the initial training, the qualified inspector shall receive 4 hours of training every 3 years. It can also mean an employee from the contracting (construction) company that meets the qualified inspector qualifications (e.g. licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), 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 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. Appendix A Soil Survey and Map Set 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 Saratoga County, New York Natural Resources Conservation Service October 12, 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 Soil Map..................................................................................................................5 Soil Map................................................................................................................6 Legend..................................................................................................................7 Map Unit Legend..................................................................................................8 Map Unit Descriptions..........................................................................................8 Saratoga County, New York............................................................................10 WnB—Windsor loamy sand, 3 to 8 percent slopes.....................................10 4 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 5 6 Custom Soil Resource Report Soil Map 4770800477081047708204770830477084047708504770860477087047708004770810477082047708304770840477085047708604770870598520 598530 598540 598550 598560 598570 598580 598590 598600 598610 598620 598630 598640 598520 598530 598540 598550 598560 598570 598580 598590 598600 598610 598620 598630 598640 43° 5' 3'' N 73° 47' 22'' W43° 5' 3'' N73° 47' 17'' W43° 5' 0'' N 73° 47' 22'' W43° 5' 0'' N 73° 47' 17'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 25 50 100 150 Feet 0 5 10 20 30 Meters Map Scale: 1:590 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 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Saratoga County, New York Survey Area Data: Version 23, Sep 6, 2023 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Sep 9, 2022—Oct 22, 2022 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 7 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI WnB Windsor loamy sand, 3 to 8 percent slopes 0.7 100.0% Totals for Area of Interest 0.7 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or 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. Custom Soil Resource Report 8 An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. Custom Soil Resource Report 9 Saratoga County, New York WnB—Windsor loamy sand, 3 to 8 percent slopes Map Unit Setting National map unit symbol: 2svkf Elevation: 0 to 1,210 feet Mean annual precipitation: 36 to 71 inches Mean annual air temperature: 39 to 55 degrees F Frost-free period: 140 to 250 days Farmland classification: Farmland of statewide importance Map Unit Composition Windsor and similar soils:85 percent Minor components:15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Windsor Setting Landform:Outwash terraces Landform position (three-dimensional):Tread Down-slope shape:Linear Across-slope shape:Linear Parent material:Loose sandy glaciofluvial deposits derived from granite and/or schist and/or gneiss Typical profile Oe - 0 to 1 inches: moderately decomposed plant material A - 1 to 3 inches: loamy sand Bw - 3 to 25 inches: loamy sand C - 25 to 65 inches: sand Properties and qualities Slope:3 to 8 percent Depth to restrictive feature:More than 80 inches Drainage class:Excessively drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat):Moderately high to very high (1.42 to 99.90 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Maximum salinity:Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 4.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2s Hydrologic Soil Group: A Ecological site: F145XY008MA - Dry Outwash Hydric soil rating: No Custom Soil Resource Report 10 Minor Components Hinckley Percent of map unit:10 percent Landform:Eskers Landform position (three-dimensional):Side slope Down-slope shape:Convex Across-slope shape:Convex Ecological site:F145XY008MA - Dry Outwash Hydric soil rating: No Deerfield, loamy sand Percent of map unit:5 percent Landform:Terraces Landform position (three-dimensional):Tread Down-slope shape:Linear Across-slope shape:Linear Ecological site:F144AY027MA - Moist Sandy Outwash Hydric soil rating: No Custom Soil Resource Report 11 Appendix B Stormwater Calculations Stormwater Practice Sizing Job Name and # 78 Church Street #2022062 Water Quality Volume Calculation 10/12/2023 WQv = [(P)(Rv)(A)]/12 Where: Rv = 0.05 + 0.009(I) I = impervious cover in percent P = 90% rainfall (see Figure 4.1 in NYS Stormwater Management Design Manual) A = Area in acres Required WQv New Impervious % Impervious 100.00% Rv 0.95 90% Rainfall 1.15 Area in Square Feet 21,106 WQv Required = 1922 ft3 0.044 ac-ft Job Name and # 78 Church Street #2022062 Minimum Runoff Reduction Volume 10/12/2023 RRv = [(P)(Rv*)(Ai)]/12 Where: Ai = (S)(Aic) Rv = 0.05 + 0.009(I) where I is 100% impervious Ai = impervious cover targeted for runoff reduction Aic = Total area of new impervious cover P = 90% rainfall (see Figure 4.1 in NYS Stormwater Management Design Manual) S = Hydrologic Soil Group (HSG) Specific Reduction Factor (S) A=0.55, B=0.40, C=0.30, D=0.20 S (HSG A) 0.55 Aic 0.48 acres Rv 0.95 90% Rainfall 1.15 Ai 0.266 RRv =0.024 acre feet = 1,057 ft3 Extensive Green Roof Worksheet Catchment  Number Total Area Impervious  Area Percent  Impervious Rv WQv Precipitation Description (Acres) (Acres) %(ft 3 )(in) 1 0.14 0.14 100% 0.95 535 1.15 0 AGR 3060 ft 2 DSM 0.25 ft DDL 0.17 ft DP 0.08 ft nSM 20% nDL 25% VSM 153 ft 3 VDL 130 ft 3 254 ft 3 537 ft 3 535 ft3 Enter Site Data For Drainage Area to be Treated by Practice WQv ≤ VSM + VDL + (DP x AGR) VSM = AGR x DSM x nSM VDL = AGR x DDL x nDL Enter Parameters for Proposed Green Roof Calculations Green Roof Surface Area Depth of Soil Media Depth of Drainage Layer Depth of Ponding Above Surface Porosity of the Soil Media Porosity of the Drainage Layer Notes 0.25‐0.5 Max 20% Max 25% Volume Provided In Soil Media Volume Provided In Drainage Layer Storage Volume Provided in Green Roof Volume in Ponding Layer Runoff Reduction Appendix C SWPPP Inspection Form 78 Church Street Redevelopment WEEKLY SWPPP INSPECTION REPORT Inspector Name: Date: Signature (required): Time: Weather: Inspection #: Soil Conditions (dry, saturated, etc): Note: Digital photos, with date stamp required for all practices requiring corrective action, before and after, to be attached to the inspection report. YES NO N/A 1. Routine Inspection. Date of last inspection: 2. Inspection following rain event. Date/time of storm ending: Rainfall amount: Recorded by: 3. Is this a final site inspection? 4. Has site undergone final stabilization? If so, have all temporary erosion and sediment controls been removed? Site Disturbance (Indicate Locations on Plan) YES NO N/A 1. Areas previously disturbed, but have not undergone active site work in the last 14 days? 2. Areas disturbed within last 14 days? 3. Areas expected to be disturbed in next 14 days? 4. Do areas of steep slopes or complex stabilization issues exist? If “YES” explain: 5. Are there currently more than 5 acres of disturbed soil at the site? If so make sure there is an approval letter from NYS DEC. Additional Comments: Inspection of Erosion and Sediment Control Devices Type of Control Device Accumulation (if any) in %Repairs/Maintenance Needed 1. 2. 3. 4. 5. 6. Stabilization/Runoff YES NO N/A 1. Are all existing disturbed areas contained by control devices? Type of devices: 2. Are there areas that require stabilization within the next 14 days? Specify Area: 3. Have stabilization measures been initiated in inactive areas? 4. Is there current snow cover or frozen ground conditions? 5. Rills or gullies? 6. Slumping/deposition? 7. Loss of vegetation? 8. Lack of germination? 9. Loss of mulching? Receiving Structures/Water Bodies (Indicate locations where runoff leaves the project site on the site plan) YES NO N/A 1. Surface water swale or natural surface waterbody? If natural waterbody: Is waterbody located onsite, or adjacent to property boundary? Description of condition: 2. Municipal or community system? Inspect locations where runoff from project site enters the receiving waters and indicate if there is evidence of: a. Rills or gullies? b. Slumping/deposition? c. Loss of vegetation? d. Undermining of structures? e. Was there a discharge into the receiving water on the day of inspection? f. Is there evidence of turbidity, sedimentation, or oil in the receiving waters? Additional Comments: Inspection of Post-Construction Stormwater Management Control Devices Type of Control Device Phase of Construction Repairs/Maintenance Needed 1. 2. 3. 4. General Site Condition YES NO N/A 1. Have action items from previous reports been addressed? 2. Does routine maintenance of protection components occur on a regular basis? 3. Does cleaning and/or sweeping affected roadways occur, at minimum, daily? 4. Is debris and litter removed on a monthly basis, or as necessary? 5. Is the site maintained in an orderly manner? Describe the condition of all natural waterbodies within or adjacent to the project that receive runoff from the site: Contractors progress over last 7 days: Anticipated work to be begun in the next 7 days: Additional Comments: Visual Observations YES NO N/A 1. All erosion and sediment control measures have been installed/constructed? 2. All erosion and sediment control measures are being maintained properly? SUMMARY OF ACTION ITEMS TO REPAIR/REPLACE/MAINTAIN/CORRECT DEFICIENCIES Action Reported To (no signature required): Company: Appendix D Other SWPPP Forms Construction Sequence SWPPP Plan Changes Spill Response Form The operator shall prepare a summary of construction status using the Construction Sequence Form below once every month. Significant deviations to the sequence and reasons for those deviations (i.e. weather, subcontractor availability, etc.), shall be noted by the contractor. The schedule shall be used to record the dates for initiation of construction, implementation of erosion control measures, stabilization, etc. A copy of this table will be maintained at the construction site and updated in addition to the individual Inspection Reports completed for each inspection. Construction Sequence Form Construction Activities (Identify name of planned practices) Date Complete 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. STORM WATER POLLUTION PREVENTION PLAN PLAN CHANGES, AUTHORIZATION, AND CHANGE CERTIFICATION CHANGES REQUIRED TO THE POLLUTION PREVENTION PLAN: REASONS FOR CHANGES: REQUESTED BY: _________________________ DATE: _________________________ AUTHORIZED BY: _________________________ DATE: _________________________ CERTIFICATION OF CHANGES: I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that false statements made herein are punishable as a Class A misdemeanor pursuant to Section 210.45 of the penal code. SIGNATURE: DATE: SPILL RESPONSE REPORT Within 1 hour of a spill discovery less than 2 gallons in volume the following must be notified: Tony Bonacio (518)584-9007 Within 1 hour of a spill discovery greater than 2 gallons the following must be notified: Tony Bonacio NYSDEC Spill Response Hotline 1-800-457-7362 Spill Response Contractor Material Spilled: Approximate Volume: Location: Distance to nearest down gradient drainage: Distance to nearest down gradient open water: Temporary control measures in place: