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2018036_385 Broadway_Site Plan Resubmission (2018-08-17)_8/24/2018 3:19:17 PM (12)
Stormwater Pollution Prevention Plan for: 385 Broadway Mix-Use Building Owner/Operator(s): 385 Bway Saratoga, LLC 1732 Western Avenue Albany, NY 12203 Contact: Peter Rosecrans 518-584-9007 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: August 16, 2018 Table of Contents 1.0 PERMIT OVERVIEW AND REQUIREMENTS ..................................................................... 1 1.1 PERMIT OVERVIEW ...................................................................................................................... 1 2.0 SWPPP REVIEW, UPDATE ....................................................................................................... 1 2.1 SWPPP REVIEW .......................................................................................................................... 1 2.2 SWPPP UPDATE .......................................................................................................................... 1 3.0 SITE ASSESSMENT, EVALUATION AND PLANNING ....................................................... 2 3.1 PROJECT LOCATION ..................................................................................................................... 2 3.2 PRE-DEVELOPMENT CONDITIONS ................................................................................................ 2 3.3 PROJECT SCOPE ............................................................................................................................ 2 3.4 RECEIVING WATERS .................................................................................................................... 2 3.5 HISTORIC PRESERVATION DETERMINATION/ENVIRONMENTAL IMPACT ....................................... 2 3.6 SOILS ........................................................................................................................................... 2 4.0 EROSION AND SEDIMENT CONTROL ................................................................................. 3 4.1 EROSION AND SEDIMENT CONTROL PRACTICES ........................................................................... 3 4.2 EROSION AND SEDIMENT CONTROL DRAWINGS ........................................................................... 3 4.3 CONSTRUCTION SEQUENCE OF OPERATIONS ................................................................................ 3 4.4 EROSION AND SEDIMENT CONTROL PRACTICE MAINTENANCE .................................................... 4 4.5 EROSION AND SEDIMENT CONTROL INSPECTION.......................................................................... 5 4.6 CONTRACTOR SEQUENCE FORM .................................................................................................. 6 5.0 POST CONSTRUCTION STORMWATER MANAGEMENT PRACTICES ...................... 6 5.1 STORMWATER MANAGEMENT CONTROLS ................................................................................... 6 5.2 POST CONSTRUCTION STORMWATER MANAGEMENT DRAWINGS ................................................ 6 5.3 HYDRAULIC AND HYDROLOGIC ANALYSIS .................................................................................. 6 5.4 COMPARISON OF PRE AND POST CONSTRUCTION STORMWATER RUNOFF .................................... 6 5.5 WATER QUALITY VOLUME .......................................................................................................... 7 5.6 RUNOFF REDUCTION VOLUME ..................................................................................................... 8 5.7 CHANNEL PROTECTION VOLUME (CPV) ...................................................................................... 8 6.0 POST CONSTRUCTION STORMWATER MAINTENANCE .............................................. 8 6.1 MECHANISM OF OPERATION AND MAINTENANCE ........................................................................ 8 6.2 MAINTENANCE TO BE PERFORMED .............................................................................................. 8 7.0 CONSTRUCTION WASTE ........................................................................................................ 9 8.0 TEMPORARY STABILIZATION FOR FROZEN CONDITIONS ....................................... 9 9.0 SPILL PREVENTION PRACTICES ....................................................................................... 10 10.0 CERTIFICATIONS .................................................................................................................... 14 11.0 DEFINITIONS ............................................................................................................................ 19 Appendices A HydroCAD Calculations and Storm Data B Soil Survey and Map Set – Location Map, Site Preparation and Demolition, Grading and Utility Plan C SWPPP Inspection Forms –SWPPP Inspection Report D Other SWPPP Forms – Construction Sequence, SWPPP Plan Changes, Spill Response Form, Stormwater Management Practice Maintenance Log E Historic Preservation/Endangered Species Documentation Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 1 1.0 PERMIT OVERVIEW AND REQUIREMENTS 1.1 Permit Overview This Stormwater Pollution Prevention Plan (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. 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. Technical standards are detailed in the “New York State Standards and Specifications for Sediment and Erosion and Sediment Control (November 2016)”, as well as illustrated on the Grading and Utility Plan included in Appendix B. 2.0 SWPPP REVIEW, UPDATE 2.1 SWPPP Review City of Saratoga Springs requires preparation of a SWPPP for non-residential activities disturbing 0.1 acres or more. The project is proposed to disturb 0.73 acres. Project review will be conducted by the City of Saratoga Springs. 2.2 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 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 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. 3.0 SITE ASSESSMENT, EVALUATION AND PLANNING 3.1 Project Location The project is located at 385 Broadway, in the City of Saratoga Springs, Saratoga County, NY 12866. See Appendix B for a general site location map. 3.2 Pre-Development Conditions The project site is located to the north of the existing Druthers Building. The site is currently comprised of buildings, paved parking area and some grass area. Stormwater runoff from the existing building is collected into a closed drainage off site that discharges to the City drainage complex. 3.3 Project Scope The project includes the construction of a five-story mixed use building. The building will include approximately 12,000 square feet of commercial space and 73 apartments units. The Project will disturb approximately +/-0.73 acres. 3.4 Receiving Waters The site discharges to the City of Saratoga Springs municipal storm sewer network. 3.5 Historic Preservation Determination/Endangered Species The project area is within an area that is shown on the OPRHP website that might possibly contain archeologically sensitive resources; however, the entire site has been previously disturbed and therefore no sensitive resources should be encountered. The Project site is outside of areas noted on the NYSDEC Environmental Resource Mapper that may contain threatened or endangered species, or a critical habitats. A copy of the environmental resource mapper can be found in Appendix E. 3.6 Soils Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 3 The USDA/NRCS soil survey map for this site shows Windsor loamy sand series mapped in the project vicinity. These soils are classified in the hydrologic soil group ‘A’. Soil report can be found in Appendix B. 4.0 EROSION AND SEDIMENT CONTROL 4.1 Erosion and Sediment Control Practices Temporary Structural Practices Silt Fence Inlet Protection Dust Control Construction Entrance Permanent Structural Controls Asphalt pavement/concrete walks 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. 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 attached in Appendix B for detailed information on each practice. 4.2 Erosion and Sediment Control Drawings Erosion and Sediment Control practices are shown on the Construction Drawings included in Appendix B. 4.3 Construction Sequence of Operations Temporary structural erosion controls will be installed prior to earthwork as per the attached plans. Areas to be undisturbed for more than 14 days will be temporarily stabilized by seeding. Disturbed areas will 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 will 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. Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 4 Construction Activities Start Stop Sequence must include major items such as, but not limited to, clearing and grubbing, 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 silt fence, construction fence and inlet protection prior to any site disturbance. Maintain erosion control measures for duration of site disturbances. Week 1 Building demolition, site excavation and install underground utilities. Weeks 1-3 Building construction Week 3- completion Fine grade and landscape After completion of building Remove erosion and sediment control measures upon stabilization of contributing areas. At completion 80% Germination 4.4 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: Silt fence – maintenance shall be performed as needed and material removed when “bulges” develop in the silt fence. Storm drain inlet protection – inspect after each storm event. Remove sediment when 50 percent of the storage volume is achieved. 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. Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 5 4.5 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 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. Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 6 4.6 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. 5.0 POST CONSTRUCTION STORMWATER MANAGEMENT PRACTICES 5.1 Stormwater Management Controls The project is proposing the use of a green roof as a volume reduction technique and to capture and treat roof runoff prior to discharge off-site. Stormwater runoff from the roof will discharge to a new catch basin installed along Broadway. In addition, the existing stormwater infrastructure along Broadway will be upsized from an 8” line to a 12” storm line to provide adequate flow capacity once offsite. 5.2 Post Construction Stormwater Management Drawings Post construction stormwater management controls are shown on the Construction Drawings included in Appendix B. 5.3 Hydraulic and Hydrologic Analysis The program utilized for quantifying stormwater runoff rates and volumes was HydroCAD software, produced by Applied Microcomputer Systems of Chocorua, NH. The SCS 24-hour Type II design storms for 1, 10, and 100-year frequency rainfall were analyzed (Appendix A). Hydrologic/hydraulic analysis for all structural components of the stormwater control system for the applicable design storms. Comparison of post-development stormwater runoff conditions with pre- development conditions. Dimensions, material specifications and installation details for each post- construction stormwater control practice. 5.4 Comparison of Pre and Post Construction Stormwater Runoff Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 7 Stormwater Quantity. These calculations are based on the HydroCAD analysis. The design storms used for the pre-development versus post-development comparison were the 1, 10, and 100-year, 24-hour duration, SCS Type II events. The rainfall amounts for these storms are 2.15, 3.75, and 6.20 inches, respectively. Under pre-development conditions the majority of the site drains to either the East or West. Roof runoff is captured and drains to the Broadway closed storm sewer system. The storm system in Broadway flows south via an 8” line to a catch basin in from of the Adelphi (AP-1). Runoff from the parking areas at the west edge of the site enters a closed storm sewer system to the west of the building which runs south to Washington Street. The Washington Street drainage system flows east to the corner at Broadway and then north to a storm manhole at the intersection of Broadway and Phila Street. Both storm sewer systems meet at Phila Street and flow east to twin 7’ x 9’ box culverts that run through the city. Post-development stormwater roof runoff will be discharged to a new 12” storm pipe at Broadway that will connect into an existing catch basin to the south of the project area. Runoff from the area west of the building will continue to enter the closed storm sewer system that runs south to Washington Street. Both systems connect at the intersection of Phila Street and Broadway which is the analysis point for the project (AP-1). The project proposes no increase in flow to the twin 7’ x 9’ box culverts. Table 4-1 Existing Conditions Versus Proposed Conditions Peak Discharge Rates Analysis Point AP-1 Existing Proposed Design Storm (cfs) (cfs) 10-Year 3.73 3.08 100-Year 6.48 5.31 5.5 Water Quality Volume The following formula was utilized to determine water quality volume: WQV= (P) (RV)(A) 12 Where: WQV= Water Quality Volume (acre/feet) Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 8 P = 90% Rainfall Event RV = 0.05 + 0.009(I) where I is impervious cover in percent A = Subcatchment area in acres Water quality volume at the site will be managed though the use of a green roof. The use of a green roof meets the standard practice requirements of the New York State Stormwater Design Manual. Table 5-1 Water Quality Volume (WQv) Summary SMP Type Provided (ac-ft) SMP-1 Green Roof 0.019 Total 0.019 A total of 3,784 SF of Green Roof (SMP-1) provides WQv through volume reduction. The required WQv for the project site is 0.018 ac-ft, which is less than the WQv provided (0.019 ac-ft). 5.6 Runoff Reduction Volume The total Runoff Reduction for this project is 0.019 ac-ft provided by the green roof. This is greater than the required Runoff Reduction which is 0.002 ac-ft 5.7 Channel Protection Volume (CPv) The project fully reduces the CPv through the use of green infrastructure. 6.0 POST CONSTRUCTION STORMWATER MAINTENANCE 6.1 Mechanism of Operation and Maintenance 385 Bway Saratoga, LLC will be responsible for the long-term operation and maintenance of the stormwater management practices for the life of the site. 6.2 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. The City of Saratoga Springs shall approve a formal maintenance and inspection agreement in accordance with City Code Chapter 242 for stormwater management Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 9 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 land owners and recorded in the office of the County Clerk as a deed restriction on the property. The operator shall retain a qualified professional to: 1) summarize the inspections conducted, maintenance activities performed and repairs made throughout the year, and 2) certify to the City that the specific stormwater management facilities installed at the site are being properly maintained, are in good operation condition and functioning as intended. 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 7.0 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. 8.0 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. Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 10 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. 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. 9.0 SPILL PREVENTION PRACTICES Good Housekeeping and Material Management Practices Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 11 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 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. Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 12 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. 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. Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 13 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 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 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 14 10.0 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: Brett Strom 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: Peter Rosencrans Title: Signature: Date: Company Name: 385 Bway Saratoga, LLC Stormwater Pollution Prevention Plan 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 15 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. I also understand that the owner or operator must comply with the terms and conditions 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 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 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 16 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. I also understand that the owner or operator must comply with the terms and conditions 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 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 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 17 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. I also understand that the owner or operator must comply with the terms and conditions 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 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 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 18 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. I also understand that the owner or operator must comply with the terms and conditions 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 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 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 19 11.0 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 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 20 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 iv. Which is not part of a Publicly Owned Treatment Works (POTW) as defined at 40 CFR 122.2. Notice of Intent – a standardized format notification sent to the NYSDEC to inform them of the proposed activity to be sent after the SWPPP has been completed. 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. Regulated, Traditional Land Use Control MS4 - means a city, town, or village with land use control authority that is required to gain coverage under New York State DEC’s SPDES General Permit for Stormwater Discharges from Municipal Separate Stormwater Sewer Systems (MS4s). 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 385 Broadway Mixed-Use Building The LA Group Project Number-2018050 Page 21 State Pollutant Discharge Elimination System (SPDES) – means the system established pursuant to Article 17 of the Environmental Conservation Law (ECL) and 6 NYCRR Part 750 for issuance of permits authorizing discharges to the waters of the state. 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. 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 or underground 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 800-941. 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 HydroCAD Calculations and Storm Data HYDROCAD CALCULATIONS PRE DEVELOPMENT 12AP-1105101520200Scale: 1" = 20'LEGENDSUBCATCHMENT BOUNDARYSUBCATCHMENT IDANALYSIS POINT1AP-1© the LA Group 2017Unauthorized alteration or addition to thisdocument is a violation of Section 7209 of theNew York State Education Law.385 Bway Saratoga,LLC1732 Western AvenueAlbany, New York 12203385 Broadway385 BroadwaySaratoga Springs, New York 12866Project Title:Prepared for:Drawing TitleDrawing No.Rev:Description:Date:Project No.:Design:Drawn:Date:Scale:Ch'k'd:2018050Existing ConditionsWatershed MapW-1BCSBCSDBH05/24/20181"=20' 1 Subcat 1 2 Subcat 2 AP-1 AP-1 Routing Diagram for Pre-Development_Burns_385 Broadway Prepared by The LA Group, Printed 8/16/2018 HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link Pre-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 2HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchment-numbers) 0.057 39 >75% Grass cover, Good, HSG A (2) 0.730 98 Paved parking, HSG A (1, 2) 0.787 94 TOTAL AREA Pre-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 3HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 0.787 HSG A 1, 2 0.000 HSG B 0.000 HSG C 0.000 HSG D 0.000 Other 0.787 TOTAL AREA Pre-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 4HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Ground Covers (all nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.057 0.000 0.000 0.000 0.000 0.057 >75% Grass cover, Good 2 0.730 0.000 0.000 0.000 0.000 0.730 Paved parking 1, 2 0.787 0.000 0.000 0.000 0.000 0.787 TOTAL AREA Type II 24-hr 1-year Rainfall=2.15"Pre-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 5HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=19,203 sf 100.00% Impervious Runoff Depth>1.79"Subcatchment 1: Subcat 1 Tc=6.0 min CN=98 Runoff=1.29 cfs 0.066 af Runoff Area=0.346 ac 83.51% Impervious Runoff Depth>1.00"Subcatchment 2: Subcat 2 Tc=6.0 min CN=88 Runoff=0.65 cfs 0.029 af Inflow=1.93 cfs 0.095 afLink AP-1: AP-1 Primary=1.93 cfs 0.095 af Total Runoff Area = 0.787 ac Runoff Volume = 0.095 af Average Runoff Depth = 1.44" 7.25% Pervious = 0.057 ac 92.75% Impervious = 0.730 ac Type II 24-hr 10-year Rainfall=3.75"Pre-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 6HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=19,203 sf 100.00% Impervious Runoff Depth>3.24"Subcatchment 1: Subcat 1 Tc=6.0 min CN=98 Runoff=2.28 cfs 0.119 af Runoff Area=0.346 ac 83.51% Impervious Runoff Depth>2.33"Subcatchment 2: Subcat 2 Tc=6.0 min CN=88 Runoff=1.45 cfs 0.067 af Inflow=3.73 cfs 0.186 afLink AP-1: AP-1 Primary=3.73 cfs 0.186 af Total Runoff Area = 0.787 ac Runoff Volume = 0.186 af Average Runoff Depth = 2.84" 7.25% Pervious = 0.057 ac 92.75% Impervious = 0.730 ac Type II 24-hr 100-year Rainfall=6.20"Pre-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 1HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=19,203 sf 100.00% Impervious Runoff Depth>5.45"Subcatchment 1: Subcat 1 Tc=6.0 min CN=98 Runoff=3.79 cfs 0.200 af Runoff Area=0.346 ac 83.51% Impervious Runoff Depth>4.52"Subcatchment 2: Subcat 2 Tc=6.0 min CN=88 Runoff=2.69 cfs 0.130 af Inflow=6.48 cfs 0.330 afLink AP-1: AP-1 Primary=6.48 cfs 0.330 af Total Runoff Area = 0.787 ac Runoff Volume = 0.330 af Average Runoff Depth = 5.04" 7.25% Pervious = 0.057 ac 92.75% Impervious = 0.730 ac Type II 24-hr 100-year Rainfall=6.20"Pre-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 2HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1: Subcat 1 Runoff = 3.79 cfs @ 11.96 hrs, Volume= 0.200 af, Depth> 5.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 100-year Rainfall=6.20" Area (sf) CN Description 19,203 98 Paved parking, HSG A 19,203 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 2: Subcat 2 Runoff = 2.69 cfs @ 11.96 hrs, Volume= 0.130 af, Depth> 4.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 100-year Rainfall=6.20" Area (ac) CN Description 0.057 39 >75% Grass cover, Good, HSG A 0.289 98 Paved parking, HSG A 0.346 88 Weighted Average 0.057 16.49% Pervious Area 0.289 83.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Link AP-1: AP-1 Inflow Area = 0.787 ac, 92.75% Impervious, Inflow Depth > 5.04" for 100-year event Inflow = 6.48 cfs @ 11.96 hrs, Volume= 0.330 af Primary = 6.48 cfs @ 11.96 hrs, Volume= 0.330 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs HYDROCAD CALCULATIONS POST DEVELOPMENT 12342SMPAP-11SMP© the LA Group 2017Unauthorized alteration or addition to thisdocument is a violation of Section 7209 of theNew York State Education Law.385 Bway Saratoga,LLC1732 Western AvenueAlbany, New York 12203385 Broadway385 BroadwaySaratoga Springs, New York 12866Project Title:Prepared for:Drawing TitleDrawing No.Rev:Description:Date:Project No.:Design:Drawn:Date:Scale:Ch'k'd:2018050105101520200Scale: 1" = 20'Proposed ConditionsWatershed MapW-2BCSBCSDBH05/24/20181"=20'LEGENDSUBCATCHMENT BOUNDARYSUBCATCHMENT IDANALYSIS POINT1AP-1STORMWATER MANAGEMENT PRACTICE1SMPGREEN ROOF 1 Subcat 1 2 Subcat 2 3 Subcat 3 4 Subcat 4 1PCB 12" Culvert SMP-1 Lower Green Roof SMP-2 Upper Green Roof AP-1 AP-1 Routing Diagram for Post-Development_Burns_385 Broadway Prepared by The LA Group, Printed 8/16/2018 HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 2HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchment-numbers) 0.130 39 >75% Grass cover, Good, HSG A (1, 2, 3, 4) 0.653 98 Paved parking, HSG A (1, 2, 3, 4) 0.783 88 TOTAL AREA Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 3HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 0.783 HSG A 1, 2, 3, 4 0.000 HSG B 0.000 HSG C 0.000 HSG D 0.000 Other 0.783 TOTAL AREA Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 4HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Ground Covers (all nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.130 0.000 0.000 0.000 0.000 0.130 >75% Grass cover, Good 1, 2, 3, 4 0.653 0.000 0.000 0.000 0.000 0.653 Paved parking 1, 2, 3, 4 0.783 0.000 0.000 0.000 0.000 0.783 TOTAL AREA Type II 24-hr 1-year Rainfall=2.15"Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 5HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=0.448 ac 100.00% Impervious Runoff Depth>1.79"Subcatchment 1: Subcat 1 Tc=6.0 min CN=98 Runoff=1.31 cfs 0.067 af Runoff Area=0.103 ac 57.65% Impervious Runoff Depth>0.34"Subcatchment 2: Subcat 2 Tc=6.0 min CN=73 Runoff=0.06 cfs 0.003 af Runoff Area=0.106 ac 73.80% Impervious Runoff Depth>0.73"Subcatchment 3: Subcat 3 Tc=6.0 min CN=83 Runoff=0.15 cfs 0.006 af Runoff Area=0.126 ac 53.40% Impervious Runoff Depth>0.28"Subcatchment 4: Subcat 4 Tc=6.0 min CN=71 Runoff=0.06 cfs 0.003 af Peak Elev=299.24' Inflow=1.50 cfs 0.076 afPond 1P: 12" Culvert 12.0" Round Culvert n=0.013 L=20.0' S=0.0200 '/' Outflow=1.50 cfs 0.076 af Peak Elev=307.60' Storage=2 cf Inflow=0.15 cfs 0.006 afPond SMP-1: Lower Green Roof Primary=0.15 cfs 0.006 af Secondary=0.00 cfs 0.000 af Outflow=0.15 cfs 0.006 af Peak Elev=347.00' Storage=1 cf Inflow=0.06 cfs 0.003 afPond SMP-2: Upper Green Roof Primary=0.06 cfs 0.003 af Secondary=0.00 cfs 0.000 af Outflow=0.06 cfs 0.003 af Inflow=1.56 cfs 0.079 afLink AP-1: AP-1 Primary=1.56 cfs 0.079 af Total Runoff Area = 0.783 ac Runoff Volume = 0.079 af Average Runoff Depth = 1.21" 16.62% Pervious = 0.130 ac 83.38% Impervious = 0.653 ac Type II 24-hr 10-year Rainfall=3.75"Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 6HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=0.448 ac 100.00% Impervious Runoff Depth>3.24"Subcatchment 1: Subcat 1 Tc=6.0 min CN=98 Runoff=2.32 cfs 0.121 af Runoff Area=0.103 ac 57.65% Impervious Runoff Depth>1.22"Subcatchment 2: Subcat 2 Tc=6.0 min CN=73 Runoff=0.24 cfs 0.011 af Runoff Area=0.106 ac 73.80% Impervious Runoff Depth>1.91"Subcatchment 3: Subcat 3 Tc=6.0 min CN=83 Runoff=0.38 cfs 0.017 af Runoff Area=0.126 ac 53.40% Impervious Runoff Depth>1.11"Subcatchment 4: Subcat 4 Tc=6.0 min CN=71 Runoff=0.27 cfs 0.012 af Peak Elev=299.66' Inflow=2.85 cfs 0.150 afPond 1P: 12" Culvert 12.0" Round Culvert n=0.013 L=20.0' S=0.0200 '/' Outflow=2.85 cfs 0.150 af Peak Elev=307.69' Storage=31 cf Inflow=0.38 cfs 0.017 afPond SMP-1: Lower Green Roof Primary=0.28 cfs 0.017 af Secondary=0.00 cfs 0.000 af Outflow=0.28 cfs 0.017 af Peak Elev=347.00' Storage=3 cf Inflow=0.27 cfs 0.012 afPond SMP-2: Upper Green Roof Primary=0.26 cfs 0.012 af Secondary=0.00 cfs 0.000 af Outflow=0.26 cfs 0.012 af Inflow=3.08 cfs 0.160 afLink AP-1: AP-1 Primary=3.08 cfs 0.160 af Total Runoff Area = 0.783 ac Runoff Volume = 0.160 af Average Runoff Depth = 2.45" 16.62% Pervious = 0.130 ac 83.38% Impervious = 0.653 ac Type II 24-hr 100-year Rainfall=6.20"Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 1HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=0.448 ac 100.00% Impervious Runoff Depth>5.45"Subcatchment 1: Subcat 1 Tc=6.0 min CN=98 Runoff=3.85 cfs 0.203 af Runoff Area=0.103 ac 57.65% Impervious Runoff Depth>3.00"Subcatchment 2: Subcat 2 Tc=6.0 min CN=73 Runoff=0.58 cfs 0.026 af Runoff Area=0.106 ac 73.80% Impervious Runoff Depth>4.00"Subcatchment 3: Subcat 3 Tc=6.0 min CN=83 Runoff=0.75 cfs 0.035 af Runoff Area=0.126 ac 53.40% Impervious Runoff Depth>2.82"Subcatchment 4: Subcat 4 Tc=6.0 min CN=71 Runoff=0.66 cfs 0.030 af Peak Elev=300.66' Inflow=4.74 cfs 0.268 afPond 1P: 12" Culvert 12.0" Round Culvert n=0.013 L=20.0' S=0.0200 '/' Outflow=4.74 cfs 0.268 af Peak Elev=308.34' Storage=270 cf Inflow=0.75 cfs 0.035 afPond SMP-1: Lower Green Roof Primary=0.28 cfs 0.035 af Secondary=0.00 cfs 0.000 af Outflow=0.28 cfs 0.035 af Peak Elev=347.03' Storage=17 cf Inflow=0.66 cfs 0.030 afPond SMP-2: Upper Green Roof Primary=0.61 cfs 0.030 af Secondary=0.00 cfs 0.000 af Outflow=0.61 cfs 0.030 af Inflow=5.31 cfs 0.294 afLink AP-1: AP-1 Primary=5.31 cfs 0.294 af Total Runoff Area = 0.783 ac Runoff Volume = 0.294 af Average Runoff Depth = 4.51" 16.62% Pervious = 0.130 ac 83.38% Impervious = 0.653 ac Type II 24-hr 100-year Rainfall=6.20"Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 2HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1: Subcat 1 Runoff = 3.85 cfs @ 11.96 hrs, Volume= 0.203 af, Depth> 5.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 100-year Rainfall=6.20" Area (ac) CN Description 0.000 39 >75% Grass cover, Good, HSG A 0.448 98 Paved parking, HSG A 0.448 98 Weighted Average 0.000 0.00% Pervious Area 0.448 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 2: Subcat 2 Runoff = 0.58 cfs @ 11.97 hrs, Volume= 0.026 af, Depth> 3.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 100-year Rainfall=6.20" Area (ac) CN Description 0.044 39 >75% Grass cover, Good, HSG A 0.059 98 Paved parking, HSG A 0.103 73 Weighted Average 0.044 42.35% Pervious Area 0.059 57.65% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 3: Subcat 3 Runoff = 0.75 cfs @ 11.97 hrs, Volume= 0.035 af, Depth> 4.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 100-year Rainfall=6.20" Area (ac) CN Description 0.028 39 >75% Grass cover, Good, HSG A 0.078 98 Paved parking, HSG A 0.106 83 Weighted Average 0.028 26.20% Pervious Area 0.078 73.80% Impervious Area Type II 24-hr 100-year Rainfall=6.20"Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 3HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 4: Subcat 4 Runoff = 0.66 cfs @ 11.97 hrs, Volume= 0.030 af, Depth> 2.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 100-year Rainfall=6.20" Area (ac) CN Description 0.059 39 >75% Grass cover, Good, HSG A 0.067 98 Paved parking, HSG A 0.126 71 Weighted Average 0.059 46.60% Pervious Area 0.067 53.40% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Pond 1P: 12" Culvert Inflow Area = 0.680 ac, 87.28% Impervious, Inflow Depth > 4.74" for 100-year event Inflow = 4.74 cfs @ 11.96 hrs, Volume= 0.268 af Outflow = 4.74 cfs @ 11.96 hrs, Volume= 0.268 af, Atten= 0%, Lag= 0.0 min Primary = 4.74 cfs @ 11.96 hrs, Volume= 0.268 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 300.66' @ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 298.59'12.0" Round Culvert L= 20.0' Ke= 0.500 Inlet / Outlet Invert= 298.59' / 298.19' S= 0.0200 '/' Cc= 0.900 n= 0.013, Flow Area= 0.79 sf Primary OutFlow Max=4.63 cfs @ 11.96 hrs HW=300.59' (Free Discharge) 1=Culvert (Inlet Controls 4.63 cfs @ 5.90 fps) Summary for Pond SMP-1: Lower Green Roof Inflow Area = 0.106 ac, 73.80% Impervious, Inflow Depth > 4.00" for 100-year event Inflow = 0.75 cfs @ 11.97 hrs, Volume= 0.035 af Outflow = 0.28 cfs @ 11.80 hrs, Volume= 0.035 af, Atten= 63%, Lag= 0.0 min Primary = 0.28 cfs @ 11.80 hrs, Volume= 0.035 af Secondary = 0.00 cfs @ 5.00 hrs, Volume= 0.000 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs / 2 Type II 24-hr 100-year Rainfall=6.20"Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 4HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Peak Elev= 308.34' @ 12.09 hrs Surf.Area= 1,200 sf Storage= 270 cf Plug-Flow detention time= 8.0 min calculated for 0.035 af (99% of inflow) Center-of-Mass det. time= 4.2 min ( 769.6 - 765.4 ) Volume Invert Avail.Storage Storage Description #1 307.59' 567 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Voids Inc.Store Cum.Store (feet) (sq-ft) (%) (cubic-feet) (cubic-feet) 307.59 1,200 0.0 0 0 307.76 1,200 25.0 51 51 308.26 1,200 20.0 120 171 308.27 1,200 100.0 12 183 308.59 1,200 100.0 384 567 Device Routing Invert Outlet Devices #1 Primary 307.59'10.000 in/hr Exfiltration over Surface area #2 Secondary 308.37'6.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.28 cfs @ 11.80 hrs HW=307.60' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.28 cfs) Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=307.59' (Free Discharge) 2=Orifice/Grate ( Controls 0.00 cfs) Summary for Pond SMP-2: Upper Green Roof Inflow Area = 0.126 ac, 53.40% Impervious, Inflow Depth > 2.82" for 100-year event Inflow = 0.66 cfs @ 11.97 hrs, Volume= 0.030 af Outflow = 0.61 cfs @ 11.98 hrs, Volume= 0.030 af, Atten= 7%, Lag= 0.1 min Primary = 0.61 cfs @ 11.98 hrs, Volume= 0.030 af Secondary = 0.00 cfs @ 5.00 hrs, Volume= 0.000 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs / 2 Peak Elev= 347.03' @ 12.00 hrs Surf.Area= 2,584 sf Storage= 17 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= (not calculated: outflow precedes inflow) Volume Invert Avail.Storage Storage Description #1 347.00' 1,221 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Voids Inc.Store Cum.Store (feet) (sq-ft) (%) (cubic-feet) (cubic-feet) 347.00 2,584 0.0 0 0 347.17 2,584 25.0 110 110 347.67 2,584 20.0 258 368 347.68 2,584 100.0 26 394 348.00 2,584 100.0 827 1,221 Type II 24-hr 100-year Rainfall=6.20"Post-Development_Burns_385 Broadway Printed 8/16/2018Prepared by The LA Group Page 5HydroCAD® 10.00-21 s/n 00439 © 2018 HydroCAD Software Solutions LLC Device Routing Invert Outlet Devices #1 Primary 347.00'10.000 in/hr Exfiltration over Surface area #2 Secondary 347.78'6.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.60 cfs @ 11.98 hrs HW=347.02' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.60 cfs) Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=347.00' (Free Discharge) 2=Orifice/Grate ( Controls 0.00 cfs) Summary for Link AP-1: AP-1 Inflow Area = 0.783 ac, 83.38% Impervious, Inflow Depth > 4.51" for 100-year event Inflow = 5.31 cfs @ 11.96 hrs, Volume= 0.294 af Primary = 5.31 cfs @ 11.96 hrs, Volume= 0.294 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Stormwater Practice Sizing Job Name and # 385 Broadway Water Quality Volume Calculation 5/24/2018 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 1,350 WQv Required = 123 ft3 0.003 ac-ft Disturbed Impervious % Impervious 100.00% Rv 0.95 90% Rainfall 1.15 Area in Square Feet 29,447 WQv Calculated = 2681 ft3 0.062 ac-ft 25% WQv Required= 670 ft3 0.015 ac-ft Total WQv Required= 793 ft3 0.018 ac-ft Extensive Green Roof Worksheet Catchment Number Total Area Impervious Area Percent Impervious Rv WQv Precipitation Description (Acres) (Acres) %(ft 3 )(in) 2 0.25 0.25 100% 0.95 991 1.15 0 AGR 3784 ft 2 DSM 0.5 ft DDL 0.17 ft DP 0.08 ft nSM 20% nDL 25% VSM 378 ft 3 VDL 161 ft 3 314 ft 3 853 ft 3 Error 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 B 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 April 30, 2018 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 Saratoga County, New York............................................................................13 WnB—Windsor loamy sand, 3 to 8 percent slopes.....................................13 References............................................................................................................15 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 47705004770520477054047705604770580477060047706204770500477052047705404770560477058047706004770620598680 598700 598720 598740 598760 598780 598800 598820 598840 598860 598880 598680 598700 598720 598740 598760 598780 598800 598820 598840 598860 598880 43° 4' 54'' N 73° 47' 16'' W43° 4' 54'' N73° 47' 6'' W43° 4' 50'' N 73° 47' 16'' W43° 4' 50'' N 73° 47' 6'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 45 90 180 270 Feet 0 10 20 40 60 Meters Map Scale: 1:979 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 17, Oct 8, 2017 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jun 10, 2015—Mar 29, 2017 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 WnB Windsor loamy sand, 3 to 8 percent slopes 2.7 100.0% Totals for Area of Interest 2.7 100.0% 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 11 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 12 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 240 days Farmland classification: Farmland of statewide importance Map Unit Composition Windsor, loamy sand, and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Windsor, Loamy Sand Setting Landform: Deltas, dunes, outwash plains, outwash terraces Landform position (three-dimensional): Riser, tread Down-slope shape: Linear, convex Across-slope shape: Linear, convex Parent material: Loose sandy glaciofluvial deposits derived from granite and/or loose sandy glaciofluvial deposits derived from schist and/or loose sandy glaciofluvial deposits derived from gneiss Typical profile O - 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 Natural drainage class: Excessively drained Runoff class: Low 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 Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Available water storage in profile: Low (about 4.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2s Hydrologic Soil Group: A Hydric soil rating: No Custom Soil Resource Report 13 Minor Components Hinckley, loamy sand Percent of map unit: 10 percent Landform: Deltas, kames, eskers, outwash plains Landform position (two-dimensional): Summit, shoulder, backslope Landform position (three-dimensional): Head slope, nose slope, side slope, crest, rise Down-slope shape: Convex Across-slope shape: Convex, linear Hydric soil rating: No Deerfield, loamy sand Percent of map unit: 5 percent Landform: Outwash plains, deltas, terraces Landform position (two-dimensional): Footslope Landform position (three-dimensional): Tread, talf Down-slope shape: Linear Across-slope shape: Linear Hydric soil rating: No Custom Soil Resource Report 14 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 15 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 16 Appendix C SWPPP Inspection Form 385 Broadway Mixed-Use Building 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 Stormwater Management Practice Maintenance Log 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: Peter Rosecrans, 385 Bway Saratoga, LLC (518)584-9007 Within 1 hour of a spill discovery greater than 2 gallons the following must be notified: Peter Rosecrans 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: Appendix E Historic Preservation/Endangered Species Documentation Division for Historic Preservation P.O. Box 189, Waterford, New York 12188-0189 • (518) 237-8643 • www.nysparks.com ANDREW M. CUOMO ROSE HARVEY Governor Commissioner June 12, 2018 Mr. Robert Fraser Environmental Scientist The LA Group, P.C. 40 Long Alley Saratoga Spring, NY 12866 Re: SEQRA 385 Broadway 385 Broadway, Saratoga Springs, NY 12866 18PR03079 Dear Mr. Fraser: Thank you for requesting the comments of the Division for Historic Preservation of the Office of Parks, Recreation and Historic Preservation (OPRHP) as part of your SEQRA process. These comments are those of the Division for Historic Preservation 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 impact must be considered as part of the environmental review of the project pursuant to the State Environmental Quality Review Act (New York Environmental Conservation Law Article 8) and its implementing regulations (6 NYCRR Part 617). We have reviewed your submission for the 385 Broadway redevelopment project. We note that 385 Broadway is a non-contributing building within the State and National Register listed Broadway Historic District. We understand that the proposed project will include development of the existing building for mixed residential and commercial use. Because the building is non-historic, we have no concerns with any interior work. Any renovations to the façade should be appropriate to the surrounding historic district. In addition, we have no archaeological concerns associated with this project. If this project will involve state or federal permitting, funding or licensing, it may require continued review for potential impacts to architectural and archaeological resources, in accordance with Section 106 of the National Historic Preservation Act or Section 14.09 of NYS Parks Recreation and Historic Preservation Law. If you have any questions, I can be reached at (518) 268-2164. Sincerely, Weston Davey Historic Site Restoration Coordinator weston.davey@parks.ny.gov via e-mail only