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20220236 131 Excelsior Ave. Site Plan Stormwater Pollution Prevention Plan
� The LA GRC�U� �� , �„� ��sev � �1� ���-�«�� �r�rings /:518 58/-0180 f 12�66 wwvv.thel�grQ���p coiri Landscape ArchiYeetureC�Engineering P_C_ Stormwater Pollution Prevention Plan Prepared in accordance with NYS DEC General Permit GP-0-20-001 for: North Spring Run Owner/Operator(s): Conifer LLC 1000 University Avenue, Suite 500 Rochester, NY 14607 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: March 16, 2022 Table of Contents 1.0 PERMIT OVERVIEW AND REQUIREMENTS..................................................................... 1 1.1 PERMIT OVERVIEW...................................................................................................................... 1 2.0 SWPPP REVIEW, UPDATE.......................................................................................................2 2.1 SWPPP REVIEW..........................................................................................................................2 2.2 SWPPP UPDATE..........................................................................................................................2 3.0 SITE ASSESSMENT, EVALUATION AND PLANNING.......................................................3 3.1 PROJECT LOCATION..................................................................................................................... 3 3.2 PRE-DEVELOPMENT CONDITIONS ................................................................................................ 3 3.3 PROJECT T�'PE ............................................................................................................................. 3 3.4 PROJECT SCOPE............................................................................................................................ 3 3.5 HISTORIC PRESERVATION DETERMINATION................................................................................. 3 3.6 RECEIVING wATERS .................................................................................................................... 3 3.7 So1Ls ........................................................................................................................................... 4 4.0 EROSION AND SEDIMENT CONTROL.................................................................................4 4.1 EROSION AND SEDIMENT CONTROL PRACTICES........................................................................... 4 4.2 EROSION AND SEDIMENT CONTROL DRAWINGS........................................................................... 4 4.3 CONSTRUCTION PHASING PLAN AND SEQUENCE OF OPERATIONS................................................4 4.4 EROSION AND SEDIMENT CONTROL PRACTICE MAINTENANCE.................................................... 6 4.5 EROSION AND SEDIMENT CONTROL INSPECTION.......................................................................... 6 4.6 CONTRACTOR SEQUENCE FORM .................................................................................................. 7 5.0 POST CONSTRUCTION STORMWATER MANAGEMENT PRACTICES......................7 S.1 STORMWATER MANAGEMENT CONTROLS ................................................................................... 7 5.2 GREEN INFRASTRUCTURE PRACTICES/RUNOFF REDUCTION TECHNIQUES................................... 8 5.3 POST CONSTRUCTION STORMWATER MANAGEMENT DRAWINGS ................................................ 9 5.4 HYDRAULIC AND HYDROLOGIC ANALYSIS .................................................................................. 9 S.S COMPARISON OF PRE AND POST CONSTRUCTION STORMWATER RUNOFF.................................... 9 6.0 POST CONSTRUCTION STORMWATER MAINTENANCE............................................ 10 6.1 MAINTENANCE TO BE PERFORMED ............................................................................................ 1 O 7.0 CONSTRUCTION WASTE ...................................................................................................... ll 8.0 OFFSITE VEHICLE TRACKING........................................................................................... ll 9.0 TEMPORARY STABILIZATION FOR FROZEN CONDITIONS ..................................... 12 10.0 SPILL PREVENTION PRACTICES....................................................................................... 13 ll.0 CERTIFICATIONS.................................................................................................................... 17 12.0 DEFINITIONS............................................................................................................................22 Appendices A Notice of Intent (NOI) and MS4 Acceptance Form B Stormwater Management Report and Hydro CAD C Map Set — Location Map and Construction Drawing D SWPPP Inspection Forms —SWPPP Inspection Report E Other SWPPP Forms — Construction Sequence, SWPPP Plan Changes, Spill Response Form, Stormwater Management Practice Maintenance Log F SPDES General Permit GP-0-20-001 G Historic Preservation/Endangered Species Documentation H Deep Ripping and De-compaction (DEC, 2008) I Stormwater Maintenance Agreement Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 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 objective of this plan is to comply with the New York Department of Environmental Conservation (NYSDEC) State Pollutant Discharge Elimination System (SPDES) General Permit for Stormwater Discharges from Construction Activities, Permit No. GP- 0-20-001 requirements. Any material conflicts between this plan and the site plans, specification or instructions, must be brought to the attention of the design professional. The project may have other permits and it is the responsibility of the owner and contractor to know and understand all permits. The operator will be issued a bill from New York State for a one hundred and ten dollar ($110.00) annual fee for the open GP-0-20-001 permit. The operator will also be billed by New York State for a one time one hundred and ten dollar ($110.00) per acre fee for the proposed disturbed soil area listed in the NOI, and finally a one time six hundred and seventy five ($675.00) per acre fee for the proposed increased impervious area listed in the NOI. 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 Notice of Intent (NOI), ✓ the NYS Department of Environmental Conservation NOI Acknowledgement Letter, ✓ the SWPPP, ✓ a copy of the General Permit (included in the SWPPP), ✓ MS4 SWPPP Acceptance Form (where applicable), and ✓ 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 Construction Drawings included in Appendix C. The design of post- construction stormwater control practices follow the guidance provided by "New York State Stormwater Management Design Manual." � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 1 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 2.0 SWPPP REVIEW, UPDATE 2.1 SWPPP Review Applicable Federal, State, and local regulatory agencies that have jurisdiction may elect to review this SWPPP and notify the permittee in writing that the SWPPP does not meet the requirements of their regulations. If the SWPPP needs to be revised, the permittee and the site contractor will make the required modifications within seven days of such notification and submit written certification to the notifying agency that the changes have been implemented. A copy of the SWPPP will be kept available on site for review by regulatory agencies, engineers, and subcontractors. This Project is in the City of Saratoga Springs which is a regulated MS4 Community, so a copy of this SWPPP was sent to the City for review. A copy of the signed MS4 Acceptance form is provided in Appendix A of this SWPPP. 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 that will implement any part of the SWPPP. If modifications are required to the post-stormwater management practices and the Project is within a regulated, traditional land use control MS4, the owner or operator of the Project must notify the MS4 in writing of any planned amendments or modifications to the post-construction stormwater management practice component of the SWPPP. Unless otherwise notified by the MS4, the owner or operator shall have the SWPPP amendments or modifications reviewed and accepted by the MS4 prior to commencing construction of the post-construction stormwater management practice. The SWPPP PLAN CHANGES, AUTHORIZATION, AND CHANGE CERTIFICATION form (Appendix E) must be filled out and a copy retained onsite during construction. If modifications are required to the post-stormwater management practices and the Project is not within a Regulated, Traditional Land Use Control MS4, the changes shall be documented in the SWPPP kept onsite. � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 2 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 3.0 SITE ASSESSMENT, EVALUATION AND PLANNING 3.1 Project Location The Project is located on Excelsior Avenue, approximately 800 feet east of the intersection Marion Avenue and Excelsior Avenue in the City of Saratoga Springs, Saratoga County, NY 12866. See Appendix C for a general site location map. 3.2 Pre-Development Conditions Currently, the site is bound to the east by residential properties, to the south by Excelsior Avenue, the north by Route 50 and to the west by an undeveloped parcel. The existing cover present in the proposed area of disturbance is a mix of grass and wooded area with an existing building and paved drives and parking lots. 3.3 Project Type This project is a mixture of new development and redevelopment project and has been designed in accordance with Chapter 4 and Chapter 9 of the NYSDEC Stormwater Management Design Manual and NYSDEC's General Permit (GP-0-20- 001) for construction activities. 3.4 Project Scope The Project includes the construction of a four story apartment building. The remainder of the proposed site improvements includes construction of a parking lot, site lighting, landscaping, stormwater controls, and connections to the municipal water and sewer at Excelsior Avenue. The Project Site represents the area that will be disturbed as a result of the Project. 3.5 Historic Preservation Determination/Endangered Species The New York State Historic Preservation Office (SHPO) has reviewed the project and determined that no historic properties will be affected. A copy of the letter from SHPO is provided in Appendix G According to the New York State EAF Mapper, the project is not within an area that is listed, proposed to be listed, to contain threatened or endangered species, or a critical habitat. 3.6 Receiving Waters The site drains to an existing drainage channel on the west side of the site. � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 3 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 3.7 Soils According to the Natural Resources Conservation Service (NRCS) Web Soil Survey, the area including and surrounding the Project Site is comprised of Windsor loamy sand and Udorthents. The hydrological soil group classifications are `A'. Test pits and falling head permeability tests were completed by The LA Group in December of 2020. Results of the test pits are provided in Attachment A of the Stormwater Management Report (Appendix B). 4.0 EROSION AND SEDIMENT CONTROL 4.1 Erosion and Sediment Control Practices Temporary Structural Practices ✓ Silt Fence ✓ Dust Control ✓ Stabilized Construction Entrance Permanent Structural Controls ✓ Grading ✓ Rock Outlet Protection Temporary Stabilization Practices (including vegetative practices) ✓ Seed and mulch bare soil areas within 14 days of disturbance. 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 C for detailed information on each practice. 4.2 Erosion and Sediment Control Drawings Erosion and Sediment Control practices are shown on Construction Drawings included in Appendix C. 4.3 Construction Phasing Plan and Sequence of Operations The project will be phased to disturb less than five acres at a single time. ✓ 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. � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 4 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 ✓ 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 Superintendent. Reference Construction Activities Sheet Start � Stop Number 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 ractices and timin of installation. Schedule a pre-construction meeting with appropriate permitting authority (City of Saratoga Springs, Saratoga Prior to County Sewer District#1) construction Delineate resources to protect and establish method of spoils Week 1 disposal (on-site and offl Establish staging area, construction entrance, topsoil Week 1 stockpile and concrete washout area Clearing and grubbing as necessary for the installation of Week 1 perimeter controls Construction and stabilization of perimeter controls. Install Week 1-2 initial runoff controls and stabilization Demolish existing building and parking lot. Clear site and Weeks 2-5 rough grade site Begin parking lot grading and utility installation Weeks 5-12 Install permanent stormwater management practices week 7- completion Begin building construction Weeks 5- completion Protect post-construction practice areas during construction Throughout to preserve native soil permeability, install SMP's only after construction site is stabilized Conduct soil restoration Week 15- completion Final fine grading, landscaping and stabilization Week 15- completion ` The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 5 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 Monitor/maintain erosion and sediment control measures Ongoing Remove erosion and sediment control measures upon stabilization of contributing areas Ongoing 4.4 Erosion and Sediment Control Practice Maintenance ✓ Silt fence — maintenance shall be performed as needed and material removed when "bulges" develop in the silt fence. ✓ 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 and wash water shall be directed away from streams or wetlands preferably to a broad grassed area or a stormwater pond. ✓ Replace top-soil, mulch and seed where seeding has been disturbed. 4.5 Erosion and Sediment Control Inspection ■ It is recommended that a rain gage be installed at the site. ■ 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 and required by GP-0-20-001 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 (as defined by the NYS DEC SPDES regulations) and his crews will make at least � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 6 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 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 D. 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. 4.6 Contractor Sequence Form The operator shall prepare a summary of construction status using the Construction Sequence Form (included in Appendix E) 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 proposed Post Construction Stormwater Management controls on this project are listed below: ✓ Stormwater Planter ✓ Underground Detention Pipes ✓ Hydrodynamic Separator � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 7 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 5.2 Green Infrastructure Practices/Runoff Reduction Techniques The proposed Green Infrastructure practices or Standard Management practices with Runoff Reduction capabilities on this project are listed below: ✓ Stormwater Planter The provided runoff reduction volume is 0.027 ac-ft, which is greater than the required minimum runoff reduction volume of 0.012 ac-ft. Soil Restoration Excessively compacted areas and areas of cut and fill on the Project Site will have soil restoration applied as needed and as specified in the table below. Attached in Appendix H is "Deep Ripping and De-compaction, (DEC 2008)." This methodology should be followed for soil restoration as specified in the table below: Type of Soil Disturbance Soil Restoration Requirement Comments/Examples Minimal So�Disturbance Restoration not permitted Preservation of Natural Features Areas where topso�is stripped Restoration not required Clearing and Grubbing only-no change in grade HSG A& B HSG C& D Areas of cut and fill apply 6 inches of Aerate* and apply topsoil 6 inches of topsoil Heavy traffic areas onsite HSG A& B HSG C&D (especiatly in a zone 5-25 feet around buildings,but not within a Aerate and apply 6 Apply full Soil 5 foot perimeter around mches of topso� Restoration** foundation walls) Keep construction equipment from Areas where Runoff Reduction Restoration not required,but may be crossing these areas. To protect and/or infittration practices are applied to enhance the reduction newly installed practice from any applied specified for appropriate practices ongoing construction activities construct a single phase operation fence area. *Aeration includes the use of machines such as tractor-drawn implements with couhers making a narrow slit in the soil,a roller with many sp�lces making indentations in the soil,or prongs which function 1�1ce a mini-subso�er **Per "Deep Ripping and Decopmpaction,DEC 2008" • If compost amendment is required, 2 to 4 inches of screened compost will be incorporated into the soil. • Prior to application of the deep-ripping and de-compaction, the depth to bedrock or naturally occurring hardpan should be known so that the depth of tillage be adjusted according to those restrictive depths. • Soils with a slope that exceeds 10% will not have full soil restoration with deep-ripping and de-compaction due to potential for erosion from tilled soil. � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 8 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 • Any soil tillage (deep or shallow) will not be done on soils that are excessively wet, as this will damage the soil. • Any tillage will not be done within approximately 10' of the drip-line of any existing established trees. • Any large stones that are unearthed during tillage should be removed from the surface prior to final surface preparation and vegetation establishment. 5.3 Post Construction Stormwater Management Drawings Post construction stormwater management controls are shown on Construction Drawings included in Appendix C. 5.4 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. ✓ Hydrologic/hydraulic analysis for all structural components of the stormwater control system for the applicable design storms (see Appendix B). ✓ Comparison of post-development stormwater runoff conditions with pre- development conditions (see Appendix B). ✓ Dimensions, material specifications and installation details for each post- construction stormwater control practice (see Appendix B and C). 5.5 Comparison of Pre and Post Construction Stormwater Runoff Stormwater Quantity. These calculations are based on the HydroCAD analysis. Pre Develo ment Post Develo ment 10 ear, 24 hour storm Q 4.63 CFS 4.21 CFS 100 ear, 24 hour storm Qf 12.88 CFS 11.35 CFS Water Quality Volume Calculations The following was utilized to determine water quality volume: WQv= (P) (Rv)(A) 12 Where: WQv= Water Quality Volume (acre/feet) P = 90% Rainfall Event Rv = 0.05 + 0.009(I) where I is impervious cover in percent � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 9 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 A = Subcatchment area in acres Re uired Provided Water Quality Volume (WQv) 0.157 AC FT 0.160 AC FT 6.0 POST CONSTRUCTION STORMWATER MAINTENANCE 6.1 Maintenance to be Performed Conifer LLC. will be responsible for the continuous upkeep and maintenance of all post construction stormwater management facilities. Post-construction maintenance for this project will consist of regular inspections of permanent stormwater management facilities and steep slopes. 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 E) to record that it was done. Annual inspections of the post construction stormwater management practices shall be completed and inspection reports shall be sent to the office of the City Engineer for their records. The City of Saratoga Springs shall approve a formal maintenance and inspection agreement in accordance with City Code Chapter 242 for stormwater management facilities to ensure the practices will be properly operated and maintained in accordance with the long term operation and maintenance plans. This agreement shall be binding on all subsequent land owners and recorded in the office of the County Clerk as a deed restriction on the property Catch Basins (All) ■ Sediment removal with a vacuum truck should be done at least once a year, preferably after spring runoff and then in early fall, or when they are at 50% capacity, whichever comes first. ■ Any mechanical valves should be operated for inspection every two months. Underground Detention Pipes ■ The systems should be inspected quarterly for the first year and if there are no problems, the system can be inspected annually after the first year. ■ If sediment is accumulating on the bottom of the system, pump in water via a flushing port or observation well and then pump the sediment laden water out via the flushing port or the inlet. This can be done with a vacuum truck. The system may have to be flushed multiple times until it is clean of sediment. � The LA GROUP �a„ds�apeA,��,��e«�,�e���g�,�,ee�ng�� Page 10 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 ■ Also, the manifold feeding the pipe storage should be flushed by pumping water in the manhole access and out the flushing port. This should be done during the routine inspection. Hydrodynamic Separator ■ Inspections of the separator must be completed at a minimum of twice a year (Site specific maintenance frequency should be established during the first two or three years or operation) ■ Maintenance shall be performed if any internal components are broken or missing, inlet or outlet is obstructed or if the accumulation of trash, debris and/or oil in the baffled chambers around the vortex is significant. All maintenance shall be completed during dry weather when no flow is entering the system. Stormwater Planter ■ Clean trash and debris out of system as necessary ■ Dead or diseased vegetation should be replaced ■ When the filtering capacity of the filter diminishes substantially (when water ponds for more than 48 hours), the top few inches of discolored material shall be removed and be replaced with fresh material. The removed sediments shall be disposed of in an acceptable manner (i.e. landfill). ■ Silt and sediment should be removed from the filter bed when the accumulation exceeds one inch. ■ 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 OFFSITE VEHICLE TRACKING Excavation equipment involved with the construction will remain on the project site and will not regularly egress or ingress the site. Any trucks used to bring in materials or remove materials via municipal paved roads will do so over a stabilized construction � The LA GROUP �a„ds�apeA,��,��e«�,�e���g�,�,ee�ng�� Page 11 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 entrance. If any off-site vehicle tracking occurs, the contractor will be directed to initiate, street sweeping program in the immediate vicinity of the site. 9.0 TEMPORARY STABILIZATION FOR FROZEN CONDITIONS The following temporary stabilization measures MUST be performed when construction is occurring during winter/frozen ground conditions. The following requirements do not supersede any other requirements of this SWPPP as they apply to non-frozen ground conditions. ■ Perimeter erosion control MUST still be installed prior to earthwork disturbance as per this SWPPP. ■ Any areas that cannot be seeded to turf by October 1 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. V The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 12 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 ■ 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. 10.0 SPILL PREVENTION PRACTICES Good Housekeeping and Material Management Practices The following good housekeeping and material management practices will be followed on site during the construction project to reduce the risk of spills or other accidental exposure of materials and substances to stormwater runoff. ■ Materials will be brought on site in the minimum quantities required. ■ All materials stored on site will be stored in a neat, orderly manner in their appropriate containers, and if possible, under a roof or other enclosure. ■ Products will be kept in their original containers with the original manufacturer's label. ■ Substances will not be mixed with one another unless recommended by the manufacturer. ■ Whenever possible, all of a product will be used up before disposal. ■ Manufacturer's recommendations for proper use and disposal will be followed. ■ The construction manager or his designee will inspect regularly to ensure proper use and disposal of materials on site. ■ The contractor shall prohibit washing of tools, equipment, and machinery in or within 100 feet of any watercourse or wetland. ■ All above grade storage tanks are to be protected from vehicle damage by temporary barriers. Inventory for Pollution Prevention Plan 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. � The LA GROUP �a„ds�apeA,��,��e«�,�e���g�,�,ee�ng�� Page 13 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 ■ Fertilizer may be stored on site in its original container for a short period of time prior to seeding. Original containers will be safely piled on pallets or similar devices to protect from moisture. ■ Paints and other similar materials will be stored in their original containers and all empty containers will be disposed of in accordance with label directions. ■ Portable sanitary facilities, which contain chemical disinfectants (deodorants) will be located on-site, with the disinfectants held in the tank of the toilet. Hazardous Products These practices are used to reduce the risks associated with hazardous materials. ■ Products will be kept in original containers unless they are not re- sealable. ■ Original labels and material safety data sheets will be retained; they contain important product information. ■ If surplus product must be disposed of, manufacturers' or local and State recommended methods for proper disposal will be followed. Spill Prevention The following product specific practices will be followed on site. Petroleum Products: ■ Construction personnel should be made aware that emergency telephone numbers are located in this SWPPP. ■ The contractor shall immediately contact NYSDEC in the event of a spill, and shall take all appropriate steps to contain the spill, including construction of a dike around the spill and placing absorbent material over this spill. ■ The contractor shall instruct personnel that spillage of fuels, oils, and similar chemicals must be avoided and will have arranged with a qualified spill remediation company to serve the site. ■ Fuels, oils, and chemicals will be stored in appropriate and tightly capped containers. Containers shall not be disposed of on the project site. ■ 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. � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 14 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 ■ Refueling and cleaning of construction equipment will take place in parking areas to provide rapid response to emergency situations. ■ All on-site vehicles will be monitored for leaks and receive regular preventative maintenance to reduce the chance of leakage. Any vehicle leaking fuel or hydraulic fuel will be immediately scheduled for repairs and use will be discontinued until repairs are made. Fertilizers: ■ Fertilizer will be stored in its original containers on pallets with water resistant coverings. ■ Proper delivery scheduling will minimize storage time. ■ Any damaged containers will be repaired immediately upon discovery and any released fertilizer recovered to the fullest extent practicable. Paints: ■ All containers will be tightly sealed and stored when not required for use. ■ Excess paint will not be discharged to the storm water system or wastewater system, but will be properly disposed of according to manufacturers' instructions or State and local regulations. Concrete Trucks: ■ Concrete trucks will be allowed to wash out or discharge surplus concrete or drum wash water only at designated locations on site. Asphalt Trucks: ■ Asphalt trucks shall not discharge surplus asphalt on the site. Spill Control Practices In addition to the good housekeeping and material management practices discussed in the previous sections of this plan, the following practices will be followed for spill prevention and cleanup. The construction manager or site superintendent responsible for the day-to-day site operations will be the spill prevention and cleanup coordinator. He will designate at least three other site personnel who will receive spill prevention and cleanup training. These individuals will each become responsible for a particular phase 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 LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 15 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 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 � The LA GROUP ��„ds�apeA,��,��e«�"�e���g�,�,ee�ng�� Page 16 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 11 .0 CERTIFICATIONS Preparer Certification of Compliance with Federal, State, and Local Regulations This Stormwater Pollution Prevention Plan was prepared in accordance with the New York State Department of Environmental Conservation SPDES General Permit for Stormwater Discharges from Construction Activities (Permit No. GP-0-20-001), pursuant to Article 17, Titles 7, 8 and Article 70 of the Environmental Conservation Law. This SPDES General Permit implements the Federal Clean WaterAct pertaining to stormwater discharges. Name: Brett Strom Title: Civil 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. 1 understand that GP-0-20-001 requires site inspections be conducted by a qualified professional once every seven (7) days and when approved in writing by the NYSDEC, disturbances of greater than five (5) acres at one time require site inspections two (2) times every seven (7) days. These inspections shall be performed by a qualified professional as defined by the General Permit. 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: Michael Birkby Title: Signature: Date: Company Name: V The LA GROUP ��.,,ds�apeA,��,��e«<„P���,��,�,eP��ng�� Page 17 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 Contractor and Subcontractor Certification 1 hereby certify that 1 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. 1 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, 1 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 1. 2. SWPPP Components You 3. Are Responsible For 4. 5. 6. Name of Trained Individual Responsible for SWPPP Implementation Title Signature of Trained Individual Responsible for SWPPP Implementation Date � The LA GROUP ��.,,ds�apeA,��,��e«<„P���,��,�,eP��ng�� Page 18 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 Contractor and Subcontractor Certification 1 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, 1 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 1. 2. SWPPP Components You 3. Are Responsible For 4. 5. 6. Name of Trained Individual Responsible for SWPPP Implementation Title Signature of Trained Individual Responsible for SWPPP Implementation Date � The LA GROUP ��.,,ds�apeA,��,��e«<„P���,��,�,eP��ng�� Page 19 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 Contractor and Subcontractor Certification 1 hereby certify that 1 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. 1 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, 1 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 1. 2. SWPPP Components You 3. Are Responsible For 4. 5. 6. Name of Trained Individual Responsible for SWPPP Implementation Title Signature of Trained Individual Responsible for SWPPP Implementation Date � The LA GROUP ��.,,ds�apeA,��,��e«<„P���,��,�,eP��ng�� Page 20 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 Contractor and Subcontractor Certification 1 hereby certify that 1 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. 1 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, 1 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 1. 2. SWPPP Components You 3. Are Responsible For 4. 5. 6. Name of Trained Individual Responsible for SWPPP Implementation Title Signature of Trained Individual Responsible for SWPPP Implementation Date � The LA GROUP ��.,,ds�apeA,��,��e«<„P���,��,�,eP��ng�� Page 21 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 12.0 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. � The LA GROUP ��.,,ds�apeA,��,��e«<„P���,��,�,eP��ng�� Page 22 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 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 - means a person that is knowledgeable in the principles and practices of erosion and sediment control, such as a licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, New York State Erosion and Sediment Control Certificate Program holder or other Department endorsed individual(s). It can also mean someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided that person has training in the principles and practices of erosion and sediment control. Training in the principles and practices of erosion and sediment control means that the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect has received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect shall receive four (4) hours of training every three (3) years. It can also mean a person that meets the Qualified Professional qualifications in addition to the Qualified Inspector qualifications. � The LA GROUP ��.,,ds�apeA,��,��e«<„P���,��,�,eP��ng�� Page 23 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 Note: Inspections of any post-construction stormwater management practices that include structural components, such as a dam for an impoundment, shall be performed by a licensed Professional Engineer. Qualified Professional — means a person that is knowledgeable in the principles and practices of stormwater management and treatment, such as a licensed Professional Engineer, Registered Landscape Architect or other Department endorsed individual(s). Individuals preparing SWPPPs that require the post-construction stormwater management practice component must have an understanding of the principles of hydrology, water quality management practice design, water quantity control design, and, in many cases, the principles of hydraulics. All components of the SWPPP that involve the practice of engineering, as defined by the NYS Education Law (see Article 145) , shall be prepared by, or under the direct supervision of, a professional engineer licensed to practice in the State of New York. 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.) 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 � The LA GROUP ��.,,ds�apeA,��,��e«<„P���,��,�,eP��ng�� Page 24 Stormwater Pollution Prevention Plan North Spring Run The LA Group Project # 2019013 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 the contracting (construction) company, identified in Part III.A.6., that has received four (4) hours of Department endorsed Appendix A 47 training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the trained contractor shall receive four (4) hours of training every three (3) years. It can also mean an employee from the contracting (construction) company, identified in Part III.A.6., that meets the qualified inspector qualifications (e.g. licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, New York State Erosion and Sediment Control Certificate Program holder, or someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity). The trained contractor is responsible for the day to day implementation of the SWPPP. G:\Proj-2019\2019013_Excelsior Brewery_Mixed Use\2019013Enviro\02SWPPP\2019013_SWPPP.docx ` The LA GROUP ��.,,ds�apeA,��,��e«<„P���,��,�,eP��ng�� Page 25 AppendixA Notice of Intent (NOI) and MS4 Acceptance Form 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 NOI for coverage under Stormwater General Permit for Construction Activity version 1.33 (Submission #: HPF-X9FW-GDF9Y, version 1) Details Originally Started By Brett Strom Alternate Identifier North Spring Run Submission ID HPF-X9FW-GDF9Y Submission Reason New Status Draft Form Input Owner/Operator Information Owner/Operator Name (Company/Private Owner/Municipality/Agency/Institution, etc.) Conifer, LLC Owner/Operator Contact Person Last Name (NOT CONSULTANT) Birkby Owner/Operator Contact Person First Name Michael Owner/Operator Mailing Address 1000 University Avenue, Suite 500 City Rochester State NY Zip 14607 Phone 5853240546 Email mbirkby@coniferllc.com https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 1/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 Federal Tax ID NONE PROVIDED Project Location Project/Site Name North Spring Run Street Address (Not P.O. Box) 131 Excelsior Avenue Side of Street North City/TownNillage (THAT ISSUES BUILDING PERMIT) Saratoga Springs State NY Zip 12866 DEC Region 4 County SARATOGA Name of Nearest Cross Street Marion Avenue Distance to Nearest Cross Street (Feet) 800 Project In Relation to Cross Street East Tax Map Numbers Section-Block-Parcel 166.30-1-3 Tax Map Numbers NONE PROVIDED 1. Coordinates Provide the Geographic Coordinates for the project site. The two methods are: - Navigate to the project location on the map (below) and click to place a marker and obtain the XY coordinates. - The "Find Me" button will provide the lat/long for the person filling out this form. Then pan the map to the correct location and click the map to place a marker and obtain the XY coordinates. Navigate to your location and click on the map to get the X,Y coordinates 43.090959900577026,-73.76799039767018 Project Details https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 2/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 2. What is the nature of this project? Redevelopment with increase in impervious area 3. Select the predominant land use for both pre and post development conditions. Pre-Development Existing Landuse Commercial Post-Development Future Land Use Multifamily Residential 3a. If Single Family Subdivision was selected in question 3, enter the number of subdivision lots. NONE PROVIDED 4. In accordance with the larger common plan of development or sale, enter the total project site acreage, the acreage to be disturbed and the future impervious area (acreage)within the disturbed area. *** ROUND TO THE NEAREST TENTH OF AN ACRE. *** Total Site Area (acres) 4.2 Total Area to be Disturbed (acres) 3.5 Existing Impervious Area to be Disturbed (acres) 2.0 Future Impervious Area Within Disturbed Area (acres) 2.5 5. Do you plan to disturb more than 5 acres of soil at any one time? No 6. Indicate the percentage (%) of each Hydrologic Soil Group(HSG) at the site. A (%) 100 B (%) 0 C �%� 0 D (%) 0 7. Is this a phased project? No 8. Enter the planned start and end dates of the disturbance activities. Start Date 8/1/2022 End Date 8/1/2023 https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 3/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 9. Identify the nearest surFace waterbody(ies)to which construction site runoff will discharge. Unnamed stream 9a. Type of waterbody identified in question 9? Stream/Creek On Site Other Waterbody Type Off Site Description NONE PROVIDED 9b. If"wetland"was selected in 9A, how was the wetland identified? NONE PROVIDED 10. Has the surFace waterbody(ies in question 9 been identified as a 303(d)segment in Appendix E of GP-0-20-001? No 11. Is this project located in one of the Watersheds identified in Appendix C of GP-0-20-001? No 12. Is the project located in one of the watershed areas associated with AA and AA-S classified waters? No If No, skip question 13. 13. Does this construction activity disturb land with no existing impervious cover and where the Soil Slope Phase is identified as an E or F on the USDA Soil Survey? NONE PROVIDED If Yes,what is the acreage to be disturbed? NONE PROVIDED 14.Will the project disturb soils within a State regulated wetland or the protected 100 foot adjacent area? No 15. Does the site runoff enter a separate storm sewer system (including roadside drains, swales, ditches, culverts, etc)? Yes 16.What is the name of the municipality/entity that owns the separate storm sewer system? City of Saratoga Springs 17. Does any runoff from the site enter a sewer classified as a Combined Sewer? No 18.Will future use of this site be an agricultural property as defined by the NYS Agriculture and Markets Law? No 19. Is this property owned by a state authority, state agency, federal government or local government? No 20. Is this a remediation project being done under a Department approved work plan? (i.e. CERCLA, RCRA, Voluntary Cleanup Agreement, etc.) No https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 4/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 Required SWPPP Components 21. Has the required Erosion and Sediment Control component of the SWPPP been developed in conformance with the current NYS Standards and Specifications for Erosion and Sediment Control (aka Blue Book)? Yes 22. Does this construction activity require the development of a SWPPP that includes the post- construction stormwater management practice component(i.e. Runoff Reduction,Water Quality and Quantity Control practices/techniques)? Yes If you answered No in question 22, skip question 23 and the Post-construction Criteria and Post- construction SMP Identification sections. 23. Has the post-construction stormwater management practice component of the SWPPP been developed in conformance with the current NYS Stormwater Management Design Manual? Yes 24. The Stormwater Pollution Prevention Plan (SWPPP)was prepared by: Professional Engineer(P.E.) SWPPP Preparer The LA Group Contact Name (Last, Space, First) Strom, Brett Mailing Address 40 Long Alley City Saratoga Springs State New York Zip 12866 Phone 5185878100 Email bstrom@thelagroup.com Download SWPPP Preparer Certification Form Please take the following steps to prepare and upload your preparer certification form: 1) Click on the link below to download a blank certification form 2) The certified SWPPP preparer should sign this form 3) Scan the signed form 4) Upload the scanned document Download SWPPP Preparer Certification Form Please upload the SWPPP Preparer Certification NONE PROVIDED Comment NONE PROVIDED https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 5/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 Erosion & Sediment Control Criteria 25. Has a construction sequence schedule for the planned management practices been prepared? Yes 26. Select all of the erosion and sediment control practices that will be employed on the project site: Temporary Structural Silt Fence Stabilized Construction Entrance Storm Drain Inlet Protection Biotechnical None Vegetative Measures Mulching Seeding Permanent Structural Rock Outlet Protection Other NONE PROVIDED Post-Construction Criteria * IMPORTANT: Completion of Questions 27-39 is not required if response to Question 22 is No. 27. Identify all site planning practices that were used to prepare the final site plan/layout for the project. Preservation of Undisturbed Area 27a. Indicate which of the following soil restoration criteria was used to address the requirements in Section 5.1.6("Soil Restoration") of the Design Manual (2010 version). All disturbed areas will be restored in accordance with the Soil Restoration requirements in Table 5.3 of the Design Manual (see page 5-22). 28. Provide the total Water Quality Volume (WQv) required for this project (based on final site plan/layout). (Acre-feet) 0.157 29. Post-construction SMP Identification Use the Post-construction SMP Identification section to identify the RR techniques (Area Reduction), RR techniques(Volume Reduction) and Standard SMPs with RRv Capacity that were used to reduce the Total WQv Required (#28). Identify the SMPs to be used by providing the total impervious area that contributes runoff to each technique/practice selected. Forthe Area Reduction Techniques, provide the total contributing area (includes pervious area) and, if applicable, the total impervious area that contributes runoff to the technique/practice. Note: Redevelopment projects shall use the Post-Construction SMP Identification section to identify the SMPs used to treat and/or reduce the WQv required. If runoff reduction techniques will not be used to reduce the required WQv, skip to question 33a after identifying the SMPs. https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 6/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 30. Indicate the Total RRv provided by the RR techniques (Areallolume Reduction)and Standard SMPs with RRv capacity identified in question 29. (acre-feet) 0.027 31. Is the Total RRv provided (#30) greater than or equal to the total WQv required (#28)? No If Yes, go to question 36. If No, go to question 32. 32. Provide the Minimum RRv required based on HSG. [Minimum RRv Required = (P) (0.95) (Ai)/12, Ai=(s) (Aic)] (acre-feet) 0.013 32a. Is the Total RRv provided (#30) greater than or equal to the Minimum RRv Required (#32)? Yes If Yes, go to question 33. Note: Use the space provided in question #39 to summarize the specific site limitations and justification for not reducing 100% of WQv required (#28). A detailed evaluation of the specific site limitations and justification for not reducing 100% of the WQv required (#28) must also be included in the SWPPP. If No, sizing criteria has not been met; therefore, NOI can not be processed. SWPPP preparer must modify design to meet sizing criteria. 33. SMPs Use the Post-construction SMP Identification section to identify the Standard SMPs and, if applicable, the Alternative SMPs to be used to treat the remaining total WQv(=Total WQv Required in #28 -Total RRv Provided in #30). Also, provide the total impervious area that contributes runoff to each practice selected. NOTE: Use the Post-construction SMP Identification section to identify the SMPs used on Redevelopment projects. 33a. Indicate the Total WQv provided (i.e.WQv treated) by the SMPs identified in question #33 and Standard SMPs with RRv Capacity identified in question #29. (acre-feet) 0.133 Note: For the standard SMPs with RRv capacity, the WQv provided by each practice =the WQv calculated using the contributing drainage area to the practice - provided by the practice. (See Table 3.5 in Design Manual) 34. Provide the sum of the Total RRv provided (#30)and the WQv provided (#33a). 0.160 35. Is the sum of the RRv provided (#30)and the WQv provided (#33a) greater than or equal to the total WQv required (#28)? Yes If Yes, go to question 36. If No, sizing criteria has not been met; therefore, NOI can not be processed. SWPPP preparer must modify design to meet sizing criteria. 36. Provide the total Channel Protection Storage Volume (CPv required and provided or select waiver(#36a), if applicable. CPv Required (acre-feet) 0.003 https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 7/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 CPv Provided (acre-feet) 0.027 36a. The need to provide channel protection has been waived because: NONE PROVIDED 37. Provide the Overbank Flood (Qp)and Extreme Flood (Qf) control criteria or select waiver(#37a), if applicable. Overbank Flood Control Criteria (Qp) Pre-Development(CFS) 4.63 Post-Development (CFS) 4.21 Total Extreme Flood Control Criteria (Qf) Pre-Development(CFS) 12.88 Post-Development (CFS) 11.35 37a. The need to meet the Qp and Qf criteria has been waived because: NONE PROVIDED 38. Has a long term Operation and Maintenance Plan for the post-construction stormwater management practice(s) been developed? Yes If Yes, Identify the entity responsible for the long term Operation and Maintenance Conifer, LLC 39. Use this space to summarize the specific site limitations and justification for not reducing 100% of WQv required (#28). (See question #32a) This space can also be used for other pertinent project information. 100% of the WQV has not been reduced due to shallow depth to seasonal high water table. Post-Construction SMP Identification Runoff Reduction (RR) Techniques, Standard Stormwater Management Practices (SMPs) and Alternative SMPs Identify the Post-construction SMPs to be used by providing the total impervious area that contributes runoff to each technique/practice selected. For the Area Reduction Techniques, provide the total contributing area (includes pervious area) and, if applicable, the total impervious area that contributes runoff to the technique/practice. RR Techniques (Area Reduction) Round to the nearest tenth Total Contributing Acres for Conservation of Natural Area (RR-1) NONE PROVIDED Total Contributing Impervious Acres for Conservation of Natural Area (RR-1) NONE PROVIDED https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 8/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 Total Contributing Acres for Sheetflow to Riparian Buffers/Filter Strips (RR-2) NONE PROVIDED Total Contributing Impervious Acres for Sheetflow to Riparian Buffers/Filter Strips (RR-2) NONE PROVIDED Total Contributing Acres for Tree Planting/Tree Pit (RR-3) NONE PROVIDED Total Contributing Impervious Acres for Tree Planting/Tree Pit (RR-3) NONE PROVIDED Total Contributing Acres for Disconnection of Rooftop Runoff(RR-4) NONE PROVIDED RR Techniques (Volume Reduction) Total Contributing Impervious Acres for Disconnection of Rooftop Runoff(RR-4) NONE PROVIDED Total Contributing Impervious Acres for Vegetated Swale (RR-5) NONE PROVIDED Total Contributing Impervious Acres for Rain Garden (RR-6) NONE PROVIDED Total Contributing Impervious Acres for Stormwater Planter(RR-7) 0.3 Total Contributing Impervious Acres for Rain Barrel/Cistern (RR-8) NONE PROVIDED Total Contributing Impervious Acres for Porous Pavement (RR-9) NONE PROVIDED Total Contributing Impervious Acres for Green Roof(RR-10) NONE PROVIDED Standard SMPs with RRv Capacity Total Contributing Impervious Acres for Infiltration Trench (I-1) NONE PROVIDED Total Contributing Impervious Acres for Infiltration Basin (I-2) NONE PROVIDED Total Contributing Impervious Acres for Dry Well (I-3) NONE PROVIDED Total Contributing Impervious Acres for Underground Infiltration System (I-4) NONE PROVIDED Total Contributing Impervious Acres for Bioretention (F-5) NONE PROVIDED Total Contributing Impervious Acres for Dry Swale (O-1) NONE PROVIDED https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 9/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 Standard SMPs Total Contributing Impervious Acres for Micropool Extended Detention (P-1) NONE PROVIDED Total Contributing Impervious Acres for Wet Pond (P-2) NONE PROVIDED Total Contributing Impervious Acres for Wet Extended Detention (P-3) NONE PROVIDED Total Contributing Impervious Acres for Multiple Pond System (P-4) NONE PROVIDED Total Contributing Impervious Acres for Pocket Pond (P-5) NONE PROVIDED Total Contributing Impervious Acres for SurFace Sand Filter(F-1) NONE PROVIDED Total Contributing Impervious Acres for Underground Sand Filter(F-2) NONE PROVIDED Total Contributing Impervious Acres for Perimeter Sand Filter(F-3) NONE PROVIDED Total Contributing Impervious Acres for Organic Filter(F-4) NONE PROVIDED Total Contributing Impervious Acres for Shallow Wetland (W-1) NONE PROVIDED Total Contributing Impervious Acres for Extended Detention Wetland (W-2) NONE PROVIDED Total Contributing Impervious Acres for Pond/Wetland System (W-3) NONE PROVIDED Total Contributing Impervious Acres for Pocket Wetland (W-4) NONE PROVIDED Total Contributing Impervious Acres for Wet Swale (O-2) NONE PROVIDED Alternative SMPs (DO NOT INCLUDE PRACTICES BEING USED FOR PRETREATMENT ONLY) Total Contributing Impervious Area for Hydrodynamic 1.4 Total Contributing Impervious Area for Wet Vault NONE PROVIDED Total Contributing Impervious Area for Media Filter NONE PROVIDED "Other"Alternative SMP? NONE PROVIDED https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 10/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 Total Contributing Impervious Area for"Other" NONE PROVIDED Provide the name and manufaturer of the alternative SMPs (i.e. proprietary practice(s)) being used for WQv treatment. Note: Redevelopment projects which do not use RR techniques, shall use questions 28, 29, 33 and 33a to provide SMPs used,total WQv required and total WQv provided for the project. Manufacturer of Alternative SMP Oldcastle Name of Alternative SMP DVS-48C Other Permits 40. Identify other DEC permits, existing and new,that are required for this project/facility. None If SPDES Multi-Sector GP, then give permit ID NONE PROVIDED If Other,then identify NONE PROVIDED 41. Does this project require a US Army Corps of Engineers Wetland Permit? No If"Yes,"then indicate Size of Impact, in acres,to the nearest tenth NONE PROVIDED 42. If this NOI is being submitted for the purpose of continuing or transferring coverage under a general permit for stormwater runoff from construction activities, please indicate the former SPDES number assigned. NONE PROVIDED MS4 SWPPP Acceptance 43. Is this project subject to the requirements of a regulated, traditional land use control MS4? Yes - Please attach the MS4 Acceptance form below If No, skip question 44 44. Has the "MS4 SWPPP Acceptance"form been signed by the principal executive officer or ranking elected official and submitted along with this NOI? Yes MS4 SWPPP Acceptance Form Download Download form from the link below. Complete, sign, and upload. MS4 SWPPP Acceptance Form MS4 Acceptance Form Upload NONE PROVIDED Comment NONE PROVIDED https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 11/12 3/21/22, 1:40 PM NYSDEC eBusiness Portal System-NOI for coverage under Stormwater General Permit for Construction Activity. Revision 1 Owner/Operator Certification Owner/Operator Certification Form Download Download the certification form by clicking the link below. Complete, sign, scan, and upload the form. Owner/Operator Certification Form (PDF, 45KB). Upload Owner/Operator Certification Form NONE PROVIDED Comment NONE PROVIDED https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/Oec12ba5-f849-44b3-bOd9-dc0e658dOd03/11 12/12 Appendix B Stormwater Management Report Hydro CAD � T�l.. �� ����� �0 1 U��g f111ey p:Sl� �87-�fOQ ,�::iir� � i Springs /�:S18 58�I-0180 Lanascap�earchftecture&�Enqlneer�ngP_C_ IJY 12866 wwvv.tl1elagroup.co[rl Stormwater Management Report for: North Spring Run at Excelsior Avenue Saratoga Springs, NY 12866 Saratoga County Owner/Operator(s): Conifer, LLC 1000 University Avenue, Suite 500 Rochester, NY 14607 Contact: Michael Birkby (585) 324-0546 SWM Report Contact(s): The LA Group, PC 40 Long Alley Saratoga Springs, NY 12866 1-518-587-8100 Project No. 2019013 Preparation Date: March 16, 2022 Stormwater Management Report North Spring Run 2019013 Table of Contents 1.0 INTRODUCTION.................................................................................................................4 2.0 PROJECT DESCRIPTION.................................................................................................4 2.1 SITE LOCATION....................................................................................................................4 2.2 PROJECT DESCRIPTION.........................................................................................................4 2.3 SOIL CONDITIONS/SOIL TESTING .........................................................................................4 2.4 CURVE NUMBERS AND RAINFALL DATA..............................................................................5 3.0 EXISTING CONDITIONS..................................................................................................5 4.0 PROPOSED CONDITIONS................................................................................................5 5.0 NYSDEC DESIGN CRITERIA...........................................................................................6 S.1 SITE PLANNING TO PRESERVE NATURAL FEATURES............................................................7 5.2 WATER QUALITY VOLUME�WQV�......................................................................................8 5.3 RUNOFF REDUCTION VOLUME�RRV�..................................................................................9 5.4 CHANNEL PROTECTION VOLUME�CPV� ............................................................................10 S.S OVERBANK FLOOD�QP�AND EXTREME FLOOD�QF�ATTENUATION.................................10 6.0 PROPOSED STORMWATER FACILITIES.................................................................11 6.1 TREATMENT.......................................................................................................................11 7.0 POST-CONSTRUCTION MAINTENANCE REQUIREMENTS................................11 7.0 REFERENCES...................................................................................................................12 Stormwater Management Report North Spring Run 2019013 Attachment A SoilInvestigations Soil Survey Natural Resource Map B Existing Conditions Watershed Map and HydroCAD Calculations C Proposed Conditions Watershed Map, HydroCAD Calculations D Storm Data Stormwater Management Report North Spring Run 2019013 1.0 INTRODUCTION The following is a Stormwater Management Report (SWM Report) developed for the Operator, Conifer, LLC, for the Tait Lane Reserve, herein referred to as the "Project." It is prepared in accordance with the New York State Department of Environmental Conservation (NYSDEC) Stormwater Management Design Manual, dated January, 2015. The Project has been designed in accordance with Chapters 4 and 9 of the NYSDEC Stormwater Management Design Manual (SWMDM), and NYSDEC's General Permit GP-0-20-001 for construction activities. Stormwater calculations were performed utilizing widely accepted engineering methodologies, including TR-55, and the stormwater modeling computer program HydroCAD (version 10.00)produced by HydroCAD Software Solutions, LLC. 2.0 PROJECT DESCRIPTION 21 Site Location The Project is located at 131 Excelsior Avenue in Saratoga Springs, Saratoga County, NY 12866. 2.2 Project Description The proposed project involves the development of a four (4) story residential apartment building located on the north side of Excelsior Avenue. The residential buildings will have one, two and three bedroom apartments. The remainder of the proposed site improvements includes construction of a parking lot, site lighting, landscaping, stormwater controls, and connections to municipal water and sewer. The property is a former brewery with existing asphalt drives and parking lots. The project is considered a mixture of new development and redevelopment project per Chapters 4 and 9 of the SWMDM. The Project Site represents the area that will be disturbed as a result of the Proj ect. 2.3 Soil Conditions/Soil Testing According to the Natural Resources Conservation Service (NRCS) Web Soil Survey, the area surrounding the Project Site is comprised of Windsor loamy sand and Udorthents. The hydrological soil group classifications for the soils are `A'. � The LA GROUP Landscape Arch'itecture FeEngineering P C 4 Stormwater Management Report North Spring Run 2019013 2.4 Curve Numbers and Rainfall Data The existing surface cover for the project area is grass, woods and impervious driveway/roofs. The curve numbers utilized in the modeling were assigned based on cover type and HSG soil classification. 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. 3.0 EXISTING CONDITIONS The Project area existing condition, for which this stormwater management plan is based, consists of impervious parking lot and building, grass and woods. Under the watershed's existing condition, the entire site flows to an existing drainage channel along the west side of the site. This is noted as Analysis Points l. Analysis Points 1 was utilized in comparing all pre- versus post-runoff conditions. Refer to drawing "W-1 Existing Conditions Watershed Map," located in Attachment B for more information. Table 3-1 below provides a summary of the existing conditions peak discharge rates for the Project's watershed. Table 3-1 Existing Conditions Peak Discharge Rates Analysis Point AP-1 Design Storm (cfs) 10-Year 4.63 100-Year 12.88 Refer to Attachment B for more information on the existing conditions watershed modeling. 4.0 PROPOSED CONDITIONS Under the watershed's Proposed Condition, stormwater from the Project will continue to discharge to the same point as in the Existing Condition (Analysis Points 1). The total watershed has generally remained unchanged, as is shown on the drawing "W-2 Proposed Conditions Watershed Map" contained in Attachment C. To meet NYSDEC requirements (see Section 5.0 NYSDEC Design Criteria of this report) a stormwater planter, hydrodynamic separator and underground detention pipes have been incorporated into the stormwater management design to mitigate the quality and quantity of stormwater runoff discharged from the Project Site. � The LA GROUP Landscape Arch'itecture FeEngineering P C 5 Stormwater Management Report North Spring Run 2019013 Table 4-1 below provides a summary of the existing conditions versus proposed conditions peak discharge rates for the Project's watershed. Table 4-1 Existing Conditions Versus Proposed Conditions Peak Dischar e Rates Analysis Point AP-1 Existing Proposed Design Storm (cfs) (cfs) 10-Year 4.63 421 100-Year 12.88 1135 Refer to Attachment C for more information on the proposed conditions watershed modeling. 5.0 NYSDEC DESIGN CRITERIA The New York State Stormwater Management Design Manual, dated January 2015 (The Manual) has been utilized to develop the stormwater management plan. The Manual includes a five-step process that involves site planning and stormwater management practice selection. The five steps include; • Site planning to preserve natural features and reduce impervious cover, • Calculation of the Water Quality Volume (WQv) for the Site, • Incorporation of green infrastructure techniques and standard SMPs with Runoff Reduction Volume (RRv) capacity, • Use of standard SMPs where applicable, to treat the portion of WQv not addressed by green infrastructure techniques and standard SMPs with RRv capacity, and • Design of volume and peak rate control (where required) The approach of the stormwater management plan was to address the stormwater requirements separately. The five steps were reduced to Site Planning to Preserve Natural Features, Water Quality Volume, Runoff Reduction Volume, Channel Protection Volume, and Overbank Flood and Extreme Storm Attenuation, as discussed in the following sections. Attachment D of this report contains detailed calculations for determining and summarizing the required and provided volumes for Water Quality and Runoff Reduction. In general, the required design criteria (WQv and RRv) were calculated for all areas where site disturbance or green infrastructure techniques are proposed. � The LA GROUP Landscape Arch'itecture FeEngineering P C 6 Stormwater Management Report North Spring Run 2019013 5.1 Site Planning to Preserve Natural Features Within Chapter 3 of The Manual, Table 3.1 Green Infrastructure Planning General Categories and Specific Practices includes a list of planning practices utilized in the planning and design of a project. There are two categories, Preservation of Natural Resources and Reduction of Imperious Cover. Preservation of Natural Resources includes: • Preservation of Undisturbed Areas • Preservation of Buffers • Reduction of Clearing and Grading • Locating Development in Less Sensitive Areas • Open Space Design • Soil Restoration Reduction of Impervious Cover includes: • Roadway Reduction • Sidewalk Reduction • Driveway Reduction • Cul-de-sac Reduction • Building Footprint Reduction • Parking Reduction A Natural Resource Map for Green Infrastructure Planning has been developed which indicates natural resource areas and critical environmental areas to be protected (where feasible). As required in Section 3.6 of The Manual, the map includes (where applicable): • Jurisdictional Wetlands o There are wetlands located at the bottom of the drainage channel, these wetlands will not be disturbed during construction. • Waterways o No waterways are impacted by the Project. • Wetland Adjacent Area o There are no wetlands located near the project site. • Floodplains o The project is not within the flood plain. • Forest, vegetative cover o Project is designed to maintain as much of the woods as feasible. • Topography/Steep slopes V The LA GROUP Landscape Arch'itecture FeEngineering P C 7 Stormwater Management Report North Spring Run 2019013 o There are steep slopes located within the drainage channel on the west side of the project. These slopes will not be disturbed as a result of the project. • Existing soils, including hydrologic soil groups and soil erodibility o See Section 2.3 of this Report. • Drainage Patterns o See Section 3.0 of this Report. • Bedrock/Significant geological features o See Section 2.3 of this Report. The Natural Resource Plan indicates the areas to be avoided and depicts the area most suitable for development. 5.2 Water Quality Volume (WQv) The Water Quality Volume (WQv) requirement is designed to improve water quality sizing to capture and treat 90% of the average annual stormwater runoff volumes. The WQv is directly related to the amount of impervious cover created at a site. The following equation is used to determine the water quality storage volume. WQv = P Rv A 12 Where: WQv = Water quality volume (acre/feet) P = 90% Rainfall Event(1.15" for Saratoga Springs) Rv = 0.05 + 0.009(I)where I is percent impervious cover A = Site area in acres The required WQv will be provided by a stormwater planters and a hydrodynamic separator designed in accordance with the SWMDM. The total required WQv for the project is 0.157 ac-ft. Refer to Table 5-1 for a summary of the provided water quality volumes for the Project. Table 5-1 Water Qualit Volume WQv Summar SMP Type Provided (ac-ft) SMP1 Stormwater Planter 0.014 SMP2 Stormwater Planter 0.013 SMP3 Hydrodynamic Separator 0.133 TOTAL 0.160 � The LA GROUP Landscape Arch'itecture Cn Engineering P C g Stormwater Management Report North Spring Run 2019013 Refer to Attachment D for detailed WQv calculations. 5.3 Runoff Reduction Volume (RRv) Section 4.3 of the Manual states, "Runoff reduction shall be achieved by infiltration, groundwater recharge, reuse, recycle, evaporation/evapotranspiration of 100 percent of the post- development water quality volumes to replicate pre-development hydrology by maintaining pre- construction in�ltration, peak runoff flow, discharge volume, as well as minimizing concentrated flow by using runoff control techniques to provide treatment in a distributed manner before runoff reaches the collection system." The Project does not reduce 100% runoff reduction of the on-site WQv of the project. Utilizing green infrastructure and stormwater management practices with RRv capabilities throughout the project an RRv of 0.027 acre-feet is provided which is greater than the minimum required RRv of 0.012 acre-feet . See Table 5-2 for a summary of the provided runoff reduction volumes for each green infrastructure practice. Table 5-2 Runoff Reduction Volume RRv Summar SMP Provided (ac-ft) 531 Conservation ofNatural Areas - 5.3.2 Sheetflow to Riparian Buffers/Filter Strips - 53.3 Vegetated Open Swales - 53.4 Tree Planting/Tree Box - 53.5 Disconnection of Rooftop Runoff - 5.3.6 Stream Daylighting - 53.7 Rain Garden - 53.8 Green Roof - 539 Stormwater Planters 0.027 53.10 Rain Tanks/Cisterns - 53.11 Porous Pa�ement - TOTAL 0.027(ac-ft) The provided volume is less than the Water Quality Volume. As part of the stormwater management plan, the following green infrastructure planning and design options were evaluated and the corresponding speci�c site limitations: � The LA GROUP Landscape Arch'itecture FeEngineering P C 9 Stormwater Management Report North Spring Run 2019013 • 5.3.1 Conservation of Natural Areas o Conservation areas is not proposed as there is insufficient area. • 5.3.2 Sheetflow to Riparian Buffers/Filter Strips o Sheetflow to riparian buffers is not proposed as there are insuf�cient filter areas. • 5.3.3 Vegetated Open Swales o A vegetated swale are not proposed and do not provide significant RRv credit. • 5.3.4 Tree Planting/Tree Box o Tree plantings have been proposed throughout the site but credit is not taken due to the low RRv credit(<0.001 ao-ft)provided. • 5.3.5 Disconnection of Rooftop Runoff o Rooftop disconnection is not proposed as part of the project as the contributing roof area exceeds maximum requirement. • 5.3.6 Stream Daylighting o All subsurface storm sewer piping will be daylighted as soon as possible. • 5.3.7 Rain Garden o Rain gardens are typically applied for residential applications. The contributing drainage areas of project components exceed the maximum contributing area of 1,000 sf(for a rain garden), speci�ed in The Manual. • 5.3.8 Green Roof o A green roof is not proposed as part of this project as it is not financially feasible. • 5.3.9 Stormwater Planters o A Stormwater planters are proposed as part of this project. • 5.3.10 Rain Tanks/Cisterns o Rain tanks/cisterns are not financially feasible. • 5.3.11 Porous Pavement o Porous pavement is not proposed due to existing soil conditions. Refer to Attachment D for detailed RRv calculations. 5.4 Channel Protection Volume (CPv) The channel protection volume is reduced through the use of green infrastructure practices (stormwater planter). The provided channel protection volume is equal to the runoff reduction volume provided by the stormwater. The provided channel protection volume (0.027 ac-ft) is greater than the required channel protection volume of 0.003 ac-ft. 5.5 Overbank Flood (Qp) and Extreme Flood (Qf�Attenuation The primary purpose of the Overbank Flood (Qp) control sizing criterion is to prevent an increase in the frequency and magnitude of out-of-bank flooding generated by urban development. It requires storage and attenuation of the 10-year, 24-hour storm to ensure post- development peak discharge rates do not exceed the pre-development condition. The intent of the Extreme Flood (Qf� criteria is to (a) prevent the increased risk of flood damage from large storm events, (b) maintain the boundaries of the pre-development 100-year � The LA GROUP Landscape Arch'itecture FeEngineering P C 1 O Stormwater Management Report North Spring Run 2019013 floodplain, and (c) protect the physical integrity of stormwater management practices. It requires storage and attenuation of the 100-year, 24-hour storm to ensure post-development peak discharge rates do not exceed the pre-development condition. During the 10-year and 100-year 24-hour storm the post-development peak discharge rates do not exceed the pre-development rates. See Table 4-1 of this Report for detailed comparison of pre- and post-development peak rates. 6.0 PROPOSED STORMWATER FACILITIES The Project is proposing the installation of stormwater planters and a hydrodynamic separator to address stormwater treatment requirements for the project. The stormwater facilities have been indicated on the plans and HydroCAD reports as SMP-1 through SMP-3. SMP-1 and SMP-2 are stormwater planters located in the north and the east of the building and will treat roof runoff. SMP-3 is the hydrodynamic separator that treat stormwater runoff from the parking lots prior to discharging to the existing drainage channel. 61 Treatment Treatment for runoff entering the stormwater planter is provided by capturing and treating the entire WQv though infiltration into the soil media. Treatment provided by the hydrodynamic separator is provided by the swirl chamber hydrodynamically separating sediment from the stormwater runoff. 7.0 POST-CONSTRUCTION MAINTENANCE REQUIREMENTS Conifer, LLC. will be responsible for the continuous upkeep and maintenance of all stormwater management facilities. Maintenance includes, but is not limited to, cleaning of sediment from drainage inlet sumps, removal of sediment from SMPs, cleaning conveyance piping and channels of obstructions, inspection and repair as required of any outlet control mechanisms, and repairing any other detriments in the design that is resulting in the facilities to not function as intended in the design. � The LA GROUP Landscape Arch'itecture FeEngineering P C 1 1 Stormwater Management Report North Spring Run 2019013 8.0 REFERENCES 1. Urban Hydrology for Small Watersheds. Published by the U.S. Soil Conservation Service, Washington, D.C., June 1986. 2. HydroCAD 10.00 Computer Program, by HydroCAD Software Solutions, LLC. 3. NYSDEC Stormwater Management Design Manual. Published by the New York State Department of Environmental Conservation, Updated January 2015. G:\Proj-2019\2019013_Excelsior_Brewery_Mixed Use\2019013Enviro\02SWPPP\2019013_SWMReport.doc ` The LA GROUP Landscape Aich'itecture(SEngineering P C 12, Attachment A Soil Investigations Soil Survey Natural Resource Map �JSp/� United States A product ofthe National Custom Soil Resource = Department of Cooperative Soil Survey, Agriculture a joint effort of the United Report for n I ��� States Department of IV Agriculture and other S a rato g a Federal agencies, State Natural agencies including the Resources Agricultural Experiment �O u ���' ��� Conservation Stations, and local Service participants Yo rk --_. -�- 'T o - - --_ - - �� -_ �:�-z_ . v _ _ ` �* ��,. --_ =-.���.��!_ _ ., � — ,. �t- � � --- -� __— �_ _ � _ �' �p�� � ' . � : . . �. . . '�. , � � y , - � �o. � , .�, .�. . � ,; •n �� , '41 . �' �� �. � i - � ,� �. ^�, - �� � R � �: � ' °�,�_F e � � � + -} 1� r � f a � � "1",. — � �� ry'f�`.,+J, � .-�,I , #� " ��, - �b , , .� • � ' � �` � `�� f" �. �y;���� � � � �P �F � , ... 1•� �q T � 4 �� ., . ' �,� � � .���i'�� p L�F � ar 4� � , .� �"^� 1 P� �.�.�� �..�. �'� y�;' �.t�,,' ; �' � � �� ; ��� � ._ t �y �',a�� "" _' ��,' ��. ��� �` 1T '� s. ' � . �'"F J��� + '1?*� � _� � � �' . '� '�r � � �_ `� ,,- - " � ;,� 1 � �, �f � � ��� .�z..r d �:'� � 6d��' y , .I .. 7�' _ �r :,� _ .�. � �. p 4itl+4. ,�5*r; ; 4 � � 1^ � .�� i� � � � � �� ��� � � � � - . I� --���41 �t 1'� "'�1 �,,,,/��i��''��r� � � �� - February 1, 2022 P reface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/ portal/nres/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nres) or your NRCS State Soil Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or(202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface....................................................................................................................2 How Soil Surveys Are Made..................................................................................5 SoilMap.................................................................................................................. 8 SoilMap................................................................................................................9 Legend................................................................................................................10 MapUnit Legend................................................................................................ 11 MapUnit Descriptions.........................................................................................11 Saratoga County, New York............................................................................13 Ue—Udorthents, smoothed.........................................................................13 WnB—Wndsor loamy sand, 3 to 8 percent slopes.....................................14 References............................................................................................................16 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil-landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil-landscape model is refined, a significantly smaller number of ineasurements 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 forthe components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. 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. 600190 600220 43° 5'32"N io a Custom Soil Resource Report Soil Map 600250 630280 600310 jkOWnB r,w011 MOM i b 600370 43° 5'32" N Soil MON may not I e validMMIN61` s scale. 5 f 43° 5'24"N 600190 600220 600250 600280 600310 Map Scale: 1:1,200 if printed on A portrait (8.5" x 11") sheet. Meters N 0 15 30 60 90 Feet 0 50 100 200 500 Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM 7_a3e 18N WGS84 9 43° 5'24" N 600370 b Custom Soil Resource Report MAPLEGEND MAP INFORMATION Area of Interest (AOI) Spoil Area The soil surveys that comprise your AOI were mapped at 0 Area of Interest (AOI) Stony Spot 1:24,000. Soils 0 Soil Map Unit Polygons Very Stony Spot Warning: Soil Map may not be valid at this scale. Wet Spot ,y Soil Map Unit Lines Enlargement of maps beyond the scale of mapping can cause � Soil Map Unit Points Other misunderstanding of the detail of mapping and accuracy of soil 9 PP 9 Y Special Line Features line placement. The maps do not show the small areas of Special Point Features contrasting soils that could have been shown at a more detailed U. Blowout Water Features scale. Streams and Canals Borrow Pit Transportation Please rely on the bar scale on each map sheet for map Clay Spot 1-Fi Rails measurements. Closed Depression �I Interstate Highways Source of Map: Natural Resources Conservation Service Gravel Pit US Routes Web Soil Survey URL: Gravelly Spot Coordinate System: Web Mercator (EPSG:3857) Major Roads Landfill Local Roads Maps from the Web Soil Survey are based on the Web Mercator Lava Flow Background projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Marsh or swamp . Aerial Photography Albers equal-area conic projection, should be used if more Mine or Quarry accurate calculations of distance or area are required. Miscellaneous Water This product is generated from the USDA-NRCS certified data as Perennial water of the version date(s) listed below. Rock Outcrop Soil Survey Area: Saratoga County, New York Saline Spot Survey Area Data: Version 21, Sep 1, 2021 Sandy Spot Soil map units are labeled (as space allows) for map scales Severely Eroded Spot 1:50,000 or larger. Sinkhole Date(s) aerial images were photographed: Apr 1, 2020—Oct 1, +p Slide or Slip 2020 Sodic Spot The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Us Custom Soil Resource Report Map Unit Legend 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, 11 Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI Ue Udorthents, smoothed 1.0 17.3% WnB Windsor loamy sand, 3 to 8 percent slopes 4.6 82.7% Totals for Area of Interest 5.5 100.0% 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, 11 Custom Soil Resource Report onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12 Custom Soil Resource Report Saratoga County, New York Ue—Udorthents, smoothed Map Unit Setting National map unit symbol: 9wcz Elevation: 20 to 840 feet Mean annual precipitation: 36 to 48 inches Mean annual air temperature: 45 to 48 degrees F Frost -free period. 125 to 160 days Farmland classification: Not prime farmland Map Unit Composition Udorthents, smoothed, well drained, and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Udorthents, Smoothed, Well Drained Typical profile H1 - 0 to 5 inches: silt loam H2 - 5 to 72 inches: channery loam Properties and qualities Slope: 0 to 8 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to very high (0.06 to 19.98 in/hr) Depth to water table: About 36 to 72 inches Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Low (about 5.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6s Hydrologic Soil Group: C Hydric soil rating: Unranked Minor Components Unnamed soils Percent of map unit. 10 percent Udorthents, smoothed, moderately well drained Percent of map unit. 10 percent Hydric soil rating: No 13 Custom Soil Resource Report 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: Dunes, outwash plains, deltas, outwash terraces Landform position (three-dimensional): Tread, riser Down-slope shape: Convex, linear Across -slope shape: Convex, linear 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 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 Maximum salinity. Nonsaline (0.0 to 1.9 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 4.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2s Hydrologic Soil Group: A Ecological site: F144AY022MA - Dry Outwash 14 Custom Soil Resource Report Hydric soil rating: No Minor Components Hinckley, loamy sand Percent of map unit: 10 percent Landform: Deltas, kames, eskers, outwash plains Landform position (two-dimensional): Backslope, shoulder, summit 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: Deltas, terraces, outwash plains Landform position (two-dimensional): Footslope Landform position (three-dimensional): Tread, talf Down-slope shape: Linear Across -slope shape: Linear Hydric soil rating: No 15 References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/ n res/d eta i I/n ati o n a I/s o i Is/? cid = n res 142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www. nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www. nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepastu re/?cid=stelprdb1043084 it. Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430 -VI. http://www.nres.usda.gov/wps/portal/ n res/d eta i I/so i Is/scie ntists/?cid=n res 142 p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid = n res 142 p2_05 3624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:H www.nrcs.usda.gov/lnternet/FSE—DOCUMENTS/nrcsl 42p2_052290. pdf 17 ko.) The LA GROUP Landscape Architecture &Engineering P.C- people. purpose. place. 40 Long Alley Saratoga Springs NY 12866 p: 518-587-8100 518-587-0180 www.thelagroup.com To: Doug Heller From: Rob Fraser Date 2-24-2020 Subject: Deep Hole Test Pits 131 Excelsior Avenue, Saratoga Springs On February 14, 2020 1 observed 3 deep hole test pits and conducted Falling Head Permeability tests in two of the pits (TP -5 and TP -6) at the Excelsior Mixed Use project site, located at 131 Excelsior Avenue, Saratoga Springs, NY. Please refer to the attached pictures and a copy of the survey for the locations of the test pits. TP -5 0-4" Asphalt 4 — 16" 10 YR 4/4 sand and gravel, sub -base Item #4, filter fabric 16 — 60" 10 YR 4/6 fine compacted sand with 10 YR 3/2 striations, weak medium subangular blocky structure, very friable 60— 84" 10 YR 3/2 fine compacted sand with 7.5 YR 4/5 mottles SHWT at 60 inches Falling Head Permeability Test was 50 minutes per inch at 48 inches Falling Head Permeability Test was greater than 90 minutes per inch at 84 inches TP -6 0 — 4" Asphalt 4 — 24" 10 YR 4/4 sand and gravel, sub -base Item #4, filter fabric 24 — 84" 7.5 YR 5/3 clay No sign of SHWT Falling Head Permeability Test was greater than 90 minutes per inch at 84 inches TP -6a 0 — 4" Asphalt 4 — 24" 10 YR 4/4 sand and gravel, sub -base Item #4, filter fabric 24 — 48" 10 YR 4/6 fine sand with 10 YR 3/2 striations with 7.5 YR 4/5 mottles at 36 inches, weak medium subangular blocky structure, very friable, decomposed roots, strong seeps at 48 inches SHWT at 36 inches No Falling Head Permeability Test i i ! os uxosor ' 1' ozancewmma wewam.,,+une xewew, me,rioeewwvn�.rrcrmnum � �� G`�j � f NEW YORK 57A7E ROUTE 50 —kcu C.V. WHITNEY MEMORIAL HI(5HWAY k� r �g oz �w 009 I S tAW NORYX80uND wNtt --a �g oz �w 009 Attachment B Existing Conditions Watershed Map and HydroCAD Calculations La- ""'uTEsp. The LA GROUP NYS ROUTE Sp. NORTHBOUND .... ...... . . ......... Conifer LLC ------------ ----------- -------------------- ------- -------------- - ----------- jjjj,,� North Spring Ron .... ....... --r 6— J* J# iv, A '7 EXCELSIOR AVENUE j Am, — — — — — — — - - - LEGEND Existing Conditions Watershed Map --11111NI —or Irl TII)E 11 —Ior—ii 1111 W-1 4 Subcat 4 CB 2P � 1P 5 12" Culvert 12" Tvert Subcat 5 ce 13P 3 Sub at 1 1 "Culvert Subcat 3 ce 4P 2 12" Culvert Subcat 2 AP -1 AP -1 6 Subcat 6 Subcat Reach on Link Routing Diagram for 2019013 Pre Development Prepared by The LA Group, Printed 3/21/2022 EHydr.CAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC 2019013 Pre Development Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 2 Area Listing (all nodes) Area CN Description (acres) (su bcatch me nt-n u mbe rs) 1.251 39 >75% Grass cover, Good, HSG A (1, 2, 3, 4, 5, 6) 2.275 98 Paved parking, HSG A (1, 2, 3, 4, 5, 6) 1.777 30 Woods, Good, HSG A (1, 4, 5, 6) 5.303 61 TOTAL AREA 2019013 Pre Development Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 3 Soil Listing (all nodes) Area Soil Subcatchment (acres) Group Numbers 5.303 HSG A 1, 2, 3, 4, 5, 6 0.000 HSG B 0.000 HSG C 0.000 HSG D 0.000 Other 5.303 TOTAL AREA 2019013 Pre Development Prepared by The LA Group HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Printed 3/21/2022 Page 4 Ground Covers (all nodes) HSG -A HSG -B HSG -C HSG -D Other Total Ground Subcatchment (acres) (acres) (acres) (acres) (acres) (acres) Cover Numbers 1.251 0.000 0.000 0.000 0.000 1.251 >75% Grass cover, Good 1, 2, 3, 4, 5,6 2.275 0.000 0.000 0.000 0.000 2.275 Paved parking 1, 2, 3, 4, 5,6 1.777 0.000 0.000 0.000 0.000 1.777 Woods, Good 1, 4, 5, 6 5.303 0.000 0.000 0.000 0.000 5.303 TOTAL AREA 2019013 Pre Development Type 1124 -hr 1 -yr Rainfall=2.15" Prepared by The LA Group Printed 3/21/2022 HvdroCAD® 10.00-26 s/n 00439 © 2020 HvdroCAD Software Solutions LLC Paae 5 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR -20 method, UH=SCS, Weighted -CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=38.247 sf 14.30% Imperious Runoff Depth=0.00" Tc=6.0 min CN=42 Runoff=0.00 cfs 0.000 of Subcatchment2: Subcat 2 Runoff Area=0.385 ac 38.37% Imperious Runoff Depth>0.12" Flow Length=279' Tc=11.6 min CN=62 Runoff=0.01 cfs 0.004 of Subcatchment3: Subcat 3 Runoff Area=0.658 ac 100.00% Imperious Runoff Depth>1.92" Tc=6.0 min CN=98 Runoff=1.92 cfs 0.105 of Subcatchment4: Subcat4 Runoff Area= 1.217 ac 46.00% Imperious Runoff Depth>0.14" Flow Length=332' Tc=13.7 min CN=63 Runoff=0.07 cfs 0.014 of Subcatchment5: Subcat5 Runoff Area= 1.446 ac 25.18% Imperious Runoff Depth>0.00" Flow Length=174' Tc=12.9 min CN=50 Runoff=0.00 cfs 0.000 of Subcatchment6: Subcat 6 Runoff Area=0.720 ac 58.34% Imperious Runoff Depth>0.35" Flow Length=563' Slope=0.0200 '/' Tc=27.1 min CN=72 Runoff=0.17 cfs 0.021 of Pond 1P: 12" Culvert Peak Elev=267.84' Inflow=1.92 cfs 0.106 of 12.0" Round Culvert n=0.012 L=173.0' S=0.0176'/' Outflow=1.92 cfs 0.106 of Pond 2P: 12" Culvert Peak EIev=264.80' Inflow=1.92 cfs 0.120 of 12.0" Round Culvert n=0.012 L=50.0' S=0.0224'/' Outflow=1.92 cfs 0.120 of Pond 3P: 12" Culvert Peak EIev=262.78' Inflow=1.92 cfs 0.120 of 12.0" Round Culvert n=0.012 L=41.0' S=0.1273'/' Outflow=1.92 cfs 0.120 of Pond 4P: 12" Culvert Peak EIev=263.16' Inflow=0.01 cfs 0.004 of 12.0" Round Culvert n=0.012 L=35.0' S=0.0289'/' Outflow=0.01 cfs 0.004 of Link AP -1: AP -1 Inflow=1.94 cfs 0.145 of Primary=1.94 cfs 0.145 of Total Runoff Area = 5.303 ac Runoff Volume = 0.145 of Average Runoff Depth = 0.33" 57.10% Pervious= 3.028 ac 42.90% Impervious = 2.275 ac 2019013 Pre Development Type// 24 -hr 10 -yr Rainfall=3.75" Prepared by The LA Group Printed 3/21/2022 HvdroCAD® 10.00-26 s/n 00439 © 2020 HvdroCAD Software Solutions LLC Paae 6 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR -20 method, UH=SCS, Weighted -CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=38.247 sf 14.30% Imperious Runoff Depth>0.07" Tc=6.0 min CN=42 Runoff=0.01 cfs 0.005 of Subcatchment2: Subcat 2 Runoff Area=0.385 ac 38.37% Imperious Runoff Depth>0.73" Flow Length=279' Tc=11.6 min CN=62 Runoff=0.35 cfs 0.024 of Subcatchment3: Subcat 3 Runoff Area=0.658 ac 100.00% Imperious Runoff Depth>3.51" Tc=6.0 min CN=98 Runoff=3.40 cfs 0.193 of Subcatchment4: Subcat4 Runoff Area= 1.217 ac 46.00% Imperious Runoff Depth>0.78" Flow Length=332' Tc=13.7 min CN=63 Runoff=1.10 cfs 0.079 of Subcatchment5: Subcat5 Runoff Area= 1.446 ac 25.18% Imperious Runoff Depth>0.26" Flow Length=174' Tc=12.9 min CN=50 Runoff=0.17 cfs 0.031 of Subcatchment6: Subcat 6 Runoff Area=0.720 ac 58.34% Imperious Runoff Depth>1.28" Flow Length=563' Slope=0.0200 '/' Tc=27.1 min CN=72 Runoff=0.81 cfs 0.077 of Pond 1P: 12" Culvert Peak Elev=268.39' Inflow=3.42 cfs 0.224 of 12.0" Round Culvert n=0.012 L=173.0' S=0.0176'/' Outflow=3.42 cfs 0.224 of Pond 2P: 12" Culvert Peak Elev=265.68' Inflow=4.07 cfs 0.303 of 12.0" Round Culvert n=0.012 L=50.0' S=0.0224'/' Outflow=4.07 cfs 0.303 of Pond 3P: 12" Culvert Peak Elev=263.66' Inflow=4.07 cfs 0.303 of 12.0" Round Culvert n=0.012 L=41.0' S=0.1273'/' Outflow=4.07 cfs 0.303 of Pond 4P: 12" Culvert Peak Elev=263.39' Inflow=0.35 cfs 0.024 of 12.0" Round Culvert n=0.012 L=35.0' S=0.0289'/' Outflow=0.35 cfs 0.024 of Link AP -1: AP -1 Inflow=4.63 cfs 0.408 of Primary=4.63 cfs 0.408 of Total Runoff Area = 5.303 ac Runoff Volume = 0.408 of Average Runoff Depth = 0.92" 57.10% Pervious= 3.028 ac 42.90% Impervious = 2.275 ac 2019013 Pre Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HvdroCAD® 10.00-26 s/n 00439 © 2020 HvdroCAD Software Solutions LLC Paae 1 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR -20 method, UH=SCS, Weighted -CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=38.247 sf 14.30% Imperious Runoff Depth>0.68" Tc=6.0 min CN=42 Runoff=0.72 cfs 0.050 of Subcatchment2: Subcat 2 Runoff Area=0.385 ac 38.37% Imperious Runoff Depth>2.22" Flow Length=279' Tc=11.6 min CN=62 Runoff=1.21 cfs 0.071 of Subcatchment3: Subcat 3 Runoff Area=0.658 ac 100.00% Imperious Runoff Depth>5.96" Tc=6.0 min CN=98 Runoff=5.65 cfs 0.326 of Subcatchment4: Subcat4 Runoff Area= 1.217 ac 46.00% Imperious Runoff Depth>2.31" Flow Length=332' Tc=13.7 min CN=63 Runoff=3.72 cfs 0.234 of Subcatchment5: Subcat5 Runoff Area= 1.446 ac 25.18% Imperious Runoff Depth>1.24" Flow Length=174' Tc=12.9 min CN=50 Runoff=2.11 cfs 0.149 of Subcatchment6: Subcat 6 Runoff Area=0.720 ac 58.34% Imperious Runoff Depth>3.14" Flow Length=563' Slope=0.0200 '/' Tc=27.1 min CN=72 Runoff=2.09 cfs 0.188 of Pond 1P: 12" Culvert Peak EIev=272.40' Inflow=6.94 cfs 0.475 of 12.0" Round Culvert n=0.012 L=173.0' S=0.0176'/' Outflow=6.94 cfs 0.475 of Pond 2P: 12" Culvert Peak EIev=271.45' Inflow=9.95 cfs 0.710 of 12.0" Round Culvert n=0.012 L=50.0' S=0.0224'/' Outflow=9.95 cfs 0.710 of Pond 3P: 12" Culvert Peak EIev=269.43' Inflow=9.95 cfs 0.710 of 12.0" Round Culvert n=0.012 L=41.0' S=0.1273'/' Outflow=9.95 cfs 0.710 of Pond 4P: 12" Culvert Peak EIev=263.68' Inflow=1.21 cfs 0.071 of 12.0" Round Culvert n=0.012 L=35.0' S=0.0289'/' Outflow=1.21 cfs 0.071 of Link AP -1: AP -1 Inflow=12.88 cfs 1.019 of Primary= 12.88 cfs 1.019 of Total Runoff Area = 5.303 ac Runoff Volume = 1.019 of Average Runoff Depth = 2.31" 57.10% Pervious= 3.028 ac 42.90% Impervious = 2.275 ac 2019013 Pre Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 2 Summary for Subcatchment 1: Subcat 1 Runoff = 0.72 cfs @ 12.01 hrs, Volume= 0.050 af, Depth> 0.68" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (sf) CN Description 8,427 39 >75% Grass cover, Good, HSG A 5,469 98 Paved parking, HSG A 24,351 30 Woods, Good, HSG A 38,247 42 Weighted Average 32,778 85.70% Pervious Area 5,469 14.30% 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 = 1.21 cfs @ 12.04 hrs, Volume= 0.071 af, Depth> 2.22" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.237 39 >75% Grass cover, Good, HSG A 0.148 98 Paved parking, HSG A 0.385 62 Weighted Average 0.237 61.63% Pervious Area 0.148 38.37% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.2 100 0.0300 0.18 Sheet Flow, Grass: Short n=0.150 P2=2.60" 2.1 126 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.3 53 0.0280 3.40 Shallow Concentrated Flow, Paved Kv= 20.3 fps 11.6 279 Total Summary for Subcatchment 3: Subcat 3 Runoff = 5.65 cfs @ 11.96 hrs, Volume= 0.326 af, Depth> 5.96" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type 11 24 -hr 100 -yr Rainfall=6.20" 2019013 Pre Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 3 Area (ac) CN Description 0.000 39 >75% Grass cover, Good, HSG A 0.658 98 Paved oarkina. HSG A 0.658 98 Weighted Average 0.000 0.00% Pervious Area 0.658 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 4: Subcat 4 Runoff = 3.72 cfs @ 12.06 hrs, Volume= 0.234 af, Depth> 2.31" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.286 39 >75% Grass cover, Good, HSG A 0.560 98 Paved parking, HSG A 0.371 30 Woods, Good, HSG A 1.217 63 Weighted Average 0.657 54.00% Pervious Area 0.560 Woods: Light underbrush n= 0.400 P2= 2.60" 46.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 75 0.0850 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.60" 2.0 25 0.0850 0.21 Sheet Flow, Grass: Short n=0.150 P2=2.60" 0.2 19 0.0500 1.57 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.9 213 0.0380 3.96 Shallow Concentrated Flow, Paved Kv= 20.3 fps 13.7 332 Total Summary for Subcatchment 5: Subcat 5 Runoff = 2.11 cfs @ 12.07 hrs, Volume= 0.149 af, Depth> 1.24" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type 11 24 -hr 100 -yr Rainfall=6.20" 2019013 Pre Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 4 Area (ac) CN Description 0.385 39 >75% Grass cover, Good, HSG A 0.364 98 Paved parking, HSG A 0.697 30 Woods, Good, HSG A 1.446 50 Weighted Average 1.082 74.82% Pervious Area 0.364 Woods: Light underbrush n= 0.400 P2= 2.60" 25.18% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 75 0.0850 0.12 Sheet Flow, 0.300 41.66% Pervious Area Woods: Light underbrush n= 0.400 P2= 2.60" 2.0 25 0.0850 0.21 Sheet Flow, Description (min) (feet) (ft/ft) (ft/sec) (cfs) Grass: Short n=0.150 P2=2.60" 0.1 13 0.0770 1.94 Shallow Concentrated Flow, Woods: Light underbrush n= 0.400 P2= 2.60" 0.4 18 Short Grass Pasture Kv= 7.0 fps 0.2 61 0.0540 4.72 Shallow Concentrated Flow, 0.3 15 0.0200 0.99 Shallow Concentrated Flow, Paved Kv= 20.3 fps 12.9 174 Total Summary for Subcatchment 6: Subcat 6 Runoff = 2.09 cfs @ 12.21 hrs, Volume= 0.188 af, Depth> 3.14" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.150 39 >75% Grass cover, Good, HSG A 0.420 98 Paved parking, HSG A 0.150 30 Woods, Good, HSG A 0.720 72 Weighted Average 0.300 41.66% Pervious Area 0.420 58.34% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 23.8 100 0.0200 0.07 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.60" 0.4 18 0.0200 0.71 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 0.3 15 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.0 7 0.0200 2.87 Shallow Concentrated Flow, Paved Kv= 20.3 fps 0.2 13 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.4 410 0.0200 2.87 Shallow Concentrated Flow, Paved Kv= 20.3 fps 27.1 563 Total 2019013 Pre Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 5 Summary for Pond 1 P: 12" Culvert Inflow Area = 2.103 ac, 48.58% Impervious, Inflow = 6.94 cfs @ 11.98 hrs, Volume Outflow = 6.94 cfs @ 11.98 hrs, Volume Primary = 6.94 cfs @ 11.98 hrs, Volume Inflow Depth > 2.71" = 0.475 of = 0.475 af, = 0.475 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 272.40' @ 11.98 hrs for 100 -yr event Atten= 0%, Lag= 0.0 min Device Routing Invert Outlet Devices #1 Primary 267.08' 12.0" Round Culvert L= 173.0' Ke= 0.500 Inlet/ Outlet Invert= 267.08'/264.03' S=0.0176'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=6.74 cfs @ 11.98 hrs HW=272.03' (Free Discharge) 't--1 =Culvert (Barrel Controls 6.74 cfs @ 8.58 fps) Summary for Pond 2P: 12" Culvert Inflow Area = 3.321 ac, 47.63% Impervious, Inflow = 9.95 cfs @ 12.00 hrs, Volume Outflow = 9.95 cfs @ 12.00 hrs, Volume Primary = 9.95 cfs @ 12.00 hrs, Volume Inflow Depth > 2.56" = 0.710 of = 0.710 af, = 0.710 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 271.45' @ 12.00 hrs for 100 -yr event Atten= 0%, Lag= 0.0 min Device Routing Invert Outlet Devices #1 Primary 264.03' 12.0" Round Culvert L= 50.0' Ke= 0.500 Inlet/ Outlet Invert= 264.03'/262.91' S=0.0224'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=9.91 cfs @ 12.00 hrs HW=271.39' (Free Discharge) L1=Culvert (Inlet Controls 9.91 cfs @ 12.61 fps) Summary for Pond 3P: 12" Culvert Inflow Area = 3.321 ac, 47.63% Impervious, Inflow = 9.95 cfs @ 12.00 hrs, Volume Outflow = 9.95 cfs @ 12.00 hrs, Volume Primary = 9.95 cfs @ 12.00 hrs, Volume Inflow Depth > 2.56" = 0.710 of = 0.710 af, = 0.710 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 269.43' @ 12.00 hrs for 100 -yr event Atten= 0%, Lag= 0.0 min Device Routing Invert Outlet Devices #1 Primary 262.01' 12.0" Round Culvert L= 41.0' Ke= 0.500 Inlet/ Outlet Invert= 262.01'/256.79' S=0.1273'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf 2019013 Pre Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 6 Primary OutFlow Max=9.91 cfs @ 12.00 hrs HW=269.37' (Free Discharge) L1=Culvert (Inlet Controls 9.91 cfs @ 12.61 fps) Summary for Pond 4P: 12" Culvert Inflow Area = 0.385 ac, 38.37% Impervious, Inflow Depth > 2.22" for 100 -yr event Inflow = 1.21 cfs @ 12.04 hrs, Volume= 0.071 of Outflow = 1.21 cfs @ 12.04 hrs, Volume= 0.071 af, Atten= 0%, Lag= 0.0 min Primary = 1.21 cfs @ 12.04 hrs, Volume= 0.071 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 263.68' @ 12.04 hrs Device Routing Invert Outlet Devices #1 Primary 263.10' 12.0" Round Culvert L= 35.0' Ke= 0.500 Inlet/ Outlet Invert= 263.10'/262.09' S=0.0289'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=1.19 cfs @ 12.04 hrs HW=263.67' (Free Discharge) L1=Culvert (Inlet Controls 1.19 cfs @ 2.57 fps) Summary for Link AP -1: AP -1 Inflow Area = 5.303 ac, 42.90% Impervious, Inflow Depth > 2.31" for 100 -yr event Inflow = 12.88 cfs @ 12.01 hrs, Volume= 1.019 of Primary = 12.88 cfs @ 12.01 hrs, Volume= 1.019 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Attachment C Proposed Conditions Watershed Map, HydroCAD Calculations NYS ROUTr 50-SOUTHBOUNp NYSNYS=OUT_c 50 - fJORTHBOUNp Con'rfer LLC NorthSpring Run J* i LEGEND —� EEInNawais IIINr Post Conditions i F sTo2V rtAi-R MANnGEn1ENT PRAcIICE Watershed Map ®o W-2 O 1 P M P-1 O Subcat 3 MH -2 Storml Planter CB CB -2 O CB -2 O Subcat 6 Subcat 2 11 mP-z Subcat 11 Stormwat r Planter O Subcat AP -1 14 AP -1 EX CB 1CB 2 Q 10 O11-9 Subcat 10 9 Subcat 9 Subcat Reach on Link --A Undergrou'hd Detention H1 _1 «�YYYO . //SubcatZ 4 Ca CB -6 O TCB -6 Subcat 5 O Subcat 7 2019013 Post Development Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 2 Area Listing (all nodes) Area CN Description (acres) (su bcatch me nt-n u mbe rs) 1.046 39 >75% Grass cover, Good, HSG A (1, 2, 3, 4, 5, 6, 7, 8, 9, 10) 2.522 98 Paved parking, HSG A (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11) 1.732 30 Woods, Good, HSG A (1, 2, 3, 4, 5, 9) 5.300 64 TOTAL AREA 2019013 Post Development Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 3 Soil Listing (all nodes) Area Soil Subcatchment (acres) Group Numbers 5.300 HSG A 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 0.000 HSG B 0.000 HSG C 0.000 HSG D 0.000 Other 5.300 TOTAL AREA 2019013 Post Development Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 4 Ground Covers (all nodes) HSG -A HSG -B HSG -C HSG -D Other Total Ground Subcatchment (acres) (acres) (acres) (acres) (acres) (acres) Cover Numbers 1.046 0.000 0.000 0.000 0.000 1.046 >75% Grass cover, Good 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 2.522 0.000 0.000 0.000 0.000 2.522 Paved parking 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,11 1.732 0.000 0.000 0.000 0.000 1.732 Woods, Good 1, 2, 3, 4, 5,9 5.300 0.000 0.000 0.000 0.000 5.300 TOTAL AREA 2019013 Post Development Type 1124 -hr 1 -yr Rainfall=2.15" Prepared by The LA Group Printed 3/21/2022 HvdroCAD® 10.00-26 s/n 00439 © 2020 HvdroCAD Software Solutions LLC Paae 5 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR -20 method, UH=SCS, Weighted -CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=0.821 ac 16.28% Impervious Runoff Depth=0.00" Tc=6.0 min CN=43 Runoff=0.00 cfs 0.000 of Subcatchment2: Subcat 2 Runoff Area=0.478 ac 59.10% Impervious Runoff Depth>0.36" Tc=6.0 min CN=72 Runoff=0.26 cfs 0.014 of Subcatchment3: Subcat 3 Runoff Area=0.494 ac 43.48% Impervious Runoff Depth>0.10" Flow Length=225' Tc=6.5 min CN=61 Runoff=0.02 cfs 0.004 of Subcatchment4: Subcat4 Runoff Area=0.719 ac 57.18% Impervious Runoff Depth>0.33" Flow Length=311' Tc=12.0 min CN=71 Runoff=0.25 cfs 0.020 of Subcatchment5: Subcat5 Runoff Area= 1.080 ac 21.10% Impervious Runoff Depth=0.00" Flow Length=173' Tc=15.4 min CN=46 Runoff=0.00 cfs 0.000 of Subcatchment6: Subcat 6 Runoff Area=0.194 ac 76.59% Impervious Runoff Depth>0.85" Tc=6.0 min CN=84 Runoff=0.29 cfs 0.014 of Subcatchment7: Subcat 7 Runoff Area=0.245 ac 100.00% Impervious Runoff Depth>1.92" Tc=6.0 min CN=98 Runoff=0.71 cfs 0.039 of Subcatchment8: Subcat 8 Runoff Area=0.138 ac 100.00% Impervious Runoff Depth>1.92" Tc=6.0 min CN=98 Runoff=0.40 cfs 0.022 of Subcatchment9: Subcat 9 Runoff Area=0.915 ac 60.85% Impervious Runoff Depth>0.38" Flow Length=563' Tc=27.0 min CN=73 Runoff=0.25 cfs 0.029 of Subcatchment 10: Subcat 10 Runoff Area=0.072 ac 27.41% Impervious Runoff Depth>0.03" Tc=6.0 min CN=55 Runoff=0.00 cfs 0.000 of Subcatchment 11: Subcat 11 Runoff Area=0.145 ac 100.00% Impervious Runoff Depth>1.92" Tc=6.0 min CN=98 Runoff=0.42 cfs 0.023 of Pond 1P: MH -2 Peak Elev=262.67' Inflow=0.72 cfs 0.074 of 12.0" Round Culvert n=0.012 L=5.0' S=0.0200'/' Outflow=0.72 cfs 0.074 of Pond 11 P: Underground Detention Peak EIev=266.03' Storage=583 cf Inflow=0.86 cfs 0.059 of Outflow=0.50 cfs 0.055 of Pond 12P: YD -9 Peak EIev=267.58' Inflow=0.43 cfs 0.045 of 8.0" Round Culvert n=0.012 L=166.0' S=0.0217'/' Outflow=0.43 cfs 0.045 of Pond 14P: EX CB Peak EIev=263.43' Inflow=0.43 cfs 0.045 of 12.0" Round Culvert n=0.012 L=35.0' S=0.0289'/' Outflow=0.43 cfs 0.045 of Pond CB -2: CB -2 Peak EIev=263.96' Inflow=0.26 cfs 0.014 of 12.0" Round Culvert n=0.012 L=20.0' S=0.0100'/' Outflow=0.26 cfs 0.014 of 2019013 Post Development Type 1124 -hr 1 -yr Rainfall=2.15" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 6 Pond CB -3: CB -3 Peak Elev=263.79' Inflow=0.51 cfs 0.059 of 12.0" Round Culvert n=0.012 L=75.0' S=0.0164'/' Outflow=0.51 cfs 0.059 of Pond CB -4: CB -4 Peak Elev=268.95' Inflow=0.86 cfs 0.059 of 12.0" Round Culvert n=0.012 L=40.0' S=0.0050'/' Outflow=0.86 cfs 0.059 of Pond CB -6: CB -6 Peak Elev=268.85' Inflow=0.00 cfs 0.000 of 12.0" Round Culvert n=0.012 L=70.0' S=0.0050'/' Outflow=0.00 cfs 0.000 of Pond MI -11: MHA Peak Elev=268.76' Inflow=0.86 cfs 0.059 of 12.0" Round Culvert n=0.012 L=5.0' S=0.0100'/' Outflow=0.86 cfs 0.059 of Pond SMP -1: Stormwater Planter Peak EIev=270.23' Storage=189 cf Inflow=0.29 cfs 0.014 of Outflow=0.04 cfs 0.014 of Pond SMP -2: Stormwater Planter Peak EIev=271.04' Storage=357 cf Inflow=0.42 cfs 0.023 of Outflow=0.11 cfs 0.023 of Pond SMP -3: HYDRODYNAMIC SEPARATOR Peak EIev=262.44' Inflow=0.72 cfs 0.074 of 12.0" Round Culvert n=0.012 L=41.0' S=0.1273'/' Outflow=0.72 cfs 0.074 of Link AP -1: AP -1 Inflow=1.17 cfs 0.148 of Primary=1.17 cfs 0.148 of Total Runoff Area = 5.300 ac Runoff Volume = 0.166 of Average Runoff Depth = 0.38" 52.41% Pervious = 2.778 ac 47.59% Impervious = 2.522 ac 2019013 Post Development Type// 24 -hr 10 -yr Rainfall=3.75" Prepared by The LA Group Printed 3/21/2022 HvdroCAD® 10.00-26 s/n 00439 © 2020 HvdroCAD Software Solutions LLC Paae 7 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR -20 method, UH=SCS, Weighted -CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=0.821 ac 16.28% Impervious Runoff Depth>0.08" Tc=6.0 min CN=43 Runoff=0.01 cfs 0.006 of Subcatchment2: Subcat 2 Runoff Area=0.478 ac 59.10% Impervious Runoff Depth>1.29" Tc=6.0 min CN=72 Runoff= 1.06 cfs 0.051 of Subcatchment3: Subcat 3 Runoff Area=0.494 ac 43.48% Impervious Runoff Depth>0.69" Flow Length=225' Tc=6.5 min CN=61 Runoff=0.52 cfs 0.028 of Subcatchment4: Subcat4 Runoff Area=0.719 ac 57.18% Impervious Runoff Depth>1.22" Flow Length=311' Tc=12.0 min CN=71 Runoff= 1.22 cfs 0.073 of Subcatchment5: Subcat5 Runoff Area= 1.080 ac 21.10% Impervious Runoff Depth>0.15" Flow Length=173' Tc=15.4 min CN=46 Runoff=0.03 cfs 0.013 of Subcatchment6: Subcat 6 Runoff Area=0.194 ac 76.59% Impervious Runoff Depth>2.15" Tc=6.0 min CN=84 Runoff=0.71 cfs 0.035 of Subcatchment7: Subcat 7 Runoff Area=0.245 ac 100.00% Impervious Runoff Depth>3.51" Tc=6.0 min CN=98 Runoff= 1.26 cfs 0.072 of Subcatchment8: Subcat 8 Runoff Area=0.138 ac 100.00% Impervious Runoff Depth>3.51" Tc=6.0 min CN=98 Runoff=0.71 cfs 0.040 of Subcatchment9: Subcat 9 Runoff Area=0.915 ac 60.85% Impervious Runoff Depth>1.34" Flow Length=563' Tc=27.0 min CN=73 Runoff=1.09 cfs 0.102 of Subcatchment 10: Subcat 10 Runoff Area=0.072 ac 27.41% Impervious Runoff Depth>0.43" Tc=6.0 min CN=55 Runoff=0.04 cfs 0.003 of Subcatchment 11: Subcat 11 Runoff Area=0.145 ac 100.00% Impervious Runoff Depth>3.51" Tc=6.0 min CN=98 Runoff=0.75 cfs 0.042 of Pond 1P: MH -2 Peak EIev=263.20' Inflow=2.36 cfs 0.233 of 12.0" Round Culvert n=0.012 L=5.0' S=0.0200'/' Outflow=2.36 cfs 0.233 of Pond 11 P: Underground Detention Peak EIev=266.80' Storage=1,534 cf Inflow=2.25 cfs 0.158 of Outflow=0.97 cfs 0.154 of Pond 12P: YD -9 Peak EIev=268.17' Inflow=1.34 cfs 0.085 of 8.0" Round Culvert n=0.012 L=166.0' S=0.0217'/' Outflow=1.34 cfs 0.085 of Pond 14P: EX CB Peak EIev=263.71' Inflow=1.34 cfs 0.085 of 12.0" Round Culvert n=0.012 L=35.0' S=0.0289'/' Outflow=1.34 cfs 0.085 of Pond CB -2: CB -2 Peak EIev=264.28' Inflow=1.06 cfs 0.051 of 12.0" Round Culvert n=0.012 L=20.0' S=0.0100'/' Outflow=1.06 cfs 0.051 of 2019013 Post Development Type// 24 -hr 10 -yr Rainfall=3.75" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 8 Pond CB -3: CB -3 Peak EIev=264.04' Inflow=1.35 cfs 0.182 of 12.0" Round Culvert n=0.012 L=75.0' S=0.0164'/' Outflow=1.35 cfs 0.182 of Pond CB -4: CB -4 Peak EIev=269.41' Inflow=2.25 cfs 0.158 of 12.0" Round Culvert n=0.012 L=40.0' S=0.0050'/' Outflow=2.25 cfs 0.158 of Pond CB -6: CB -6 Peak EIev=268.94' Inflow=0.03 cfs 0.013 of 12.0" Round Culvert n=0.012 L=70.0' S=0.0050'/' Outflow=0.03 cfs 0.013 of Pond MI -11: MHA Peak EIev=269.22' Inflow=2.25 cfs 0.158 of 12.0" Round Culvert n=0.012 L=5.0' S=0.0100'/' Outflow=2.25 cfs 0.158 of Pond SMP -1: Stormwater Planter Peak EIev=270.57' Storage=526 cf Inflow=0.71 cfs 0.035 of Outflow=0.25 cfs 0.035 of Pond SMP -2: Stormwater Planter Peak EIev=271.15' Storage=449 cf Inflow=0.75 cfs 0.042 of Outflow=0.65 cfs 0.042 of Pond SMP -3: HYDRODYNAMIC SEPARATOR Peak EIev=262.90' Inflow=2.36 cfs 0.233 of 12.0" Round Culvert n=0.012 L=41.0' S=0.1273'/' Outflow=2.36 cfs 0.233 of Link AP -1: AP -1 Inflow=4.16 cfs 0.426 of Primary=4.16 cfs 0.426 of Total Runoff Area = 5.300 ac Runoff Volume = 0.466 of Average Runoff Depth = 1.05" 52.41% Pervious = 2.778 ac 47.59% Impervious = 2.522 ac 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HvdroCAD® 10.00-26 s/n 00439 © 2020 HvdroCAD Software Solutions LLC Paae 1 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR -20 method, UH=SCS, Weighted -CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=0.821 ac 16.28% Impervious Runoff Depth>0.75" Tc=6.0 min CN=43 Runoff=0.78 cfs 0.051 of Subcatchment2: Subcat 2 Runoff Area=0.478 ac 59.10% Impervious Runoff Depth>3.15" Tc=6.0 min CN=72 Runoff=2.59 cfs 0.126 of Subcatchment3: Subcat 3 Runoff Area=0.494 ac 43.48% Impervious Runoff Depth>2.14" Flow Length=225' Tc=6.5 min CN=61 Runoff= 1.80 cfs 0.088 of Subcatchment4: Subcat4 Runoff Area=0.719 ac 57.18% Impervious Runoff Depth>3.05" Flow Length=311' Tc=12.0 min CN=71 Runoff=3.13 cfs 0.183 of Subcatchment5: Subcat5 Runoff Area= 1.080 ac 21.10% Impervious Runoff Depth>0.95" Flow Length=173' Tc=15.4 min CN=46 Runoff=0.96 cfs 0.085 of Subcatchment6: Subcat 6 Runoff Area=0.194 ac 76.59% Impervious Runoff Depth>4.38" Tc=6.0 min CN=84 Runoff= 1.41 cfs 0.071 of Subcatchment7: Subcat 7 Runoff Area=0.245 ac 100.00% Impervious Runoff Depth>5.96" Tc=6.0 min CN=98 Runoff=2.10 cfs 0.121 of Subcatchment8: Subcat 8 Runoff Area=0.138 ac 100.00% Impervious Runoff Depth>5.96" Tc=6.0 min CN=98 Runoff=1.18 cfs 0.068 of Subcatchment9: Subcat 9 Runoff Area=0.915 ac 60.85% Impervious Runoff Depth>3.23" Flow Length=563' Tc=27.0 min CN=73 Runoff=2.75 cfs 0.246 of Subcatchment 10: Subcat 10 Runoff Area=0.072 ac 27.41% Impervious Runoff Depth>1.63" Tc=6.0 min CN=55 Runoff=0.20 cfs 0.010 of Subcatchment 11: Subcat 11 Runoff Area=0.145 ac 100.00% Impervious Runoff Depth>5.96" Tc=6.0 min CN=98 Runoff= 1.25 cfs 0.072 of Pond 1P: MH -2 Peak Elev=264.92' Inflow=5.63 cfs 0.597 of 12.0" Round Culvert n=0.012 L=5.0' S=0.0200'/' Outflow=5.63 cfs 0.597 of Pond 11 P: Underground Detention Peak Elev=268.37' Storage=3,571 cf Inflow=5.38 cfs 0.389 of Outflow=4.31 cfs 0.384 of Pond 12P: YD -9 Peak Elev=271.52' Inflow=2.53 cfs 0.150 of 8.0" Round Culvert n=0.012 L=166.0' S=0.0217'/' Outflow=2.53 cfs 0.150 of Pond 14P: EX CB Peak EIev=264.03' Inflow=2.53 cfs 0.150 of 12.0" Round Culvert n=0.012 L=35.0' S=0.0289'/' Outflow=2.53 cfs 0.150 of Pond CB -2: CB -2 Peak EIev=264.74' Inflow=2.59 cfs 0.126 of 12.0" Round Culvert n=0.012 L=20.0' S=0.0100'/' Outflow=2.59 cfs 0.126 of 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 2 Pond CB -3: CB -3 Peak Elev=265.58' Inflow=4.88 cfs 0.472 of 12.0" Round Culvert n=0.012 L=75.0' S=0.0164'/' Outflow=4.88 cfs 0.472 of Pond CB -4: CB -4 Peak EIev=271.07' Inflow=5.38 cfs 0.389 of 12.0" Round Culvert n=0.012 L=40.0' S=0.0050'/' Outflow=5.38 cfs 0.389 of Pond CB -6: CB -6 Peak EIev=269.43' Inflow=0.96 cfs 0.085 of 12.0" Round Culvert n=0.012 L=70.0' S=0.0050'/' Outflow=0.96 cfs 0.085 of Pond MI -11: MHA Peak EIev=270.72' Inflow=5.38 cfs 0.389 of 12.0" Round Culvert n=0.012 L=5.0' S=0.0100'/' Outflow=5.38 cfs 0.389 of Pond SMP -1: Stormwater Planter Peak EIev=270.73' Storage=708 cf Inflow=1.41 cfs 0.071 of Outflow=1.22 cfs 0.071 of Pond SMP -2: Stormwater Planter Peak EIev=271.23' Storage=514 cf Inflow=1.25 cfs 0.072 of Outflow=1.17 cfs 0.072 of Pond SMP -3: HYDRODYNAMIC SEPARATOR Peak EIev=264.73' Inflow=5.63 cfs 0.597 of 12.0" Round Culvert n=0.012 L=41.0' S=0.1273'/' Outflow=5.63 cfs 0.597 of Link AP -1: AP -1 Inflow=10.15 cfs 1.045 of Primary=10.15 cfs 1.045 of Total Runoff Area = 5.300 ac Runoff Volume = 1.121 of Average Runoff Depth = 2.54" 52.41% Pervious = 2.778 ac 47.59% Impervious = 2.522 ac 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 3 Summary for Subcatchment 1: Subcat 1 Runoff = 0.78 cfs @ 12.00 hrs, Volume= 0.051 af, Depth> 0.75" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.161 39 >75% Grass cover, Good, HSG A 0.134 98 Paved parking, HSG A 0.526 30 Woods, Good, HSG A 0.821 43 Weighted Average 0.687 59.10% Impervious Area 83.72% Pervious Area 0.134 (min) (feet) 16.28% 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 = 2.59 cfs @ 11.97 hrs, Volume= 0.126 af, Depth> 3.15" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.107 39 >75% Grass cover, Good, HSG A 0.282 98 Paved parking, HSG A 0.089 30 Woods, Good, HSG A 0.478 72 Weighted Average 0.195 40.90% Pervious Area 0.282 59.10% 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 = 1.80 cfs @ 11.99 hrs, Volume= 0.088 af, Depth> 2.14" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type 11 24 -hr 100 -yr Rainfall=6.20" 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 4 Area (ac) CN Description 0.092 39 >75% Grass cover, Good, HSG A 0.215 98 Paved parking, HSG A 0.187 30 Woods, Good, HSG A 0.494 61 Weighted Average 0.279 56.52% Pervious Area 0.215 Woods: Light underbrush n= 0.400 P2= 2.60" 43.48% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.8 36 0.2500 0.16 Sheet Flow, 0.308 42.82% Pervious Area 0.411 Woods: Light underbrush n= 0.400 P2= 2.60" 1.8 28 0.1400 0.26 Sheet Flow, Grass: Short n=0.150 P2=2.60" 0.9 161 0.0200 2.87 Shallow Concentrated Flow, Paved Kv= 20.3 fps 6.5 225 Total Summary for Subcatchment 4: Subcat 4 Runoff = 3.13 cfs @ 12.04 hrs, Volume= 0.183 af, Depth> 3.05" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.195 39 >75% Grass cover, Good, HSG A 0.411 98 Paved parking, HSG A 0.113 30 Woods, Good, HSG A 0.719 71 Weighted Average 0.308 42.82% Pervious Area 0.411 Woods: Light underbrush n= 0.400 P2= 2.60" 57.18% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.6 75 0.0850 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.60" 0.3 41 0.1100 2.32 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 1.1 195 0.0200 2.87 Shallow Concentrated Flow, Paved Kv= 20.3 fps 12.0 311 Total Summary for Subcatchment 5: Subcat 5 Runoff = 0.96 cfs @ 12.11 hrs, Volume= 0.085 af, Depth> 0.95" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type 11 24 -hr 100 -yr Rainfall=6.20" 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 5 Area (ac) CN Description 0.183 39 >75% Grass cover, Good, HSG A 0.228 98 Paved parking, HSG A 0.669 30 Woods, Good, HSG A 1.080 46 Weighted Average 0.852 78.90% Pervious Area 0.228 Woods: Light underbrush n= 0.400 P2= 2.60" 21.10% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.6 76 0.0390 0.09 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.60" 0.3 24 0.0390 1.38 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1 8 0.0600 1.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 65 0.0200 2.87 Shallow Concentrated Flow, Paved Kv= 20.3 fps 15.4 173 Total Summary for Subcatchment 6: Subcat 6 Runoff = 1.41 cfs @ 11.97 hrs, Volume= 0.071 af, Depth> 4.38" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.045 39 >75% Grass cover, Good, HSG A 0.149 98 Paved parking, HSG A 0.194 84 Weighted Average 0.045 23.41 % Pervious Area 0.149 76.59% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 7: Subcat 7 Runoff = 2.10 cfs @ 11.96 hrs, Volume= 0.121 af, Depth> 5.96" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type 11 24 -hr 100 -yr Rainfall=6.20" 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 6 Area (ac) CN Description 0.000 39 >75% Grass cover, Good, HSG A 0.245 98 Paved oarkina. HSG A 0.245 98 Weighted Average 0.000 0.00% Pervious Area 0.245 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 8: Subcat 8 Runoff = 1.18 cfs @ 11.96 hrs, Volume= 0.068 af, Depth> 5.96" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.000 39 >75% Grass cover, Good, HSG A 0.138 98 Paved parking, HSG A 0.138 98 Weighted Average 0.000 0.00% Pervious Area 0.138 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 9: Subcat 9 Runoff = 2.75 cfs @ 12.21 hrs, Volume= 0.246 af, Depth> 3.23" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.211 39 >75% Grass cover, Good, HSG A 0.557 98 Paved parking, HSG A 0.147 30 Woods, Good, HSG A 0.915 73 Weighted Average 0.358 39.15% Pervious Area 0.557 60.85% Impervious Area 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 7 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 23.8 100 0.0200 0.07 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.60" 0.4 18 0.0200 0.71 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 0.1 10 0.0500 1.57 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.1 10 0.0200 2.87 Shallow Concentrated Flow, Paved Kv= 20.3 fps 0.2 15 0.0500 1.57 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 2.4 410 0.0200 2.87 Shallow Concentrated Flow, Paved Kv= 20.3 fps 27.0 563 Total Summary for Subcatchment 10: Subcat 10 Runoff = 0.20 cfs @ 11.98 hrs, Volume= 0.010 af, Depth> 1.63" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.052 39 >75% Grass cover, Good, HSG A 0.020 98 Paved oarkina. HSG A 0.072 55 Weighted Average 0.052 72.59% Pervious Area 0.020 27.41 % Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 11: Subcat 11 Runoff = 1.25 cfs @ 11.96 hrs, Volume= 0.072 af, Depth> 5.96" Runoff by SCS TR -20 method, UH=SCS, Weighted -CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type II 24 -hr 100 -yr Rainfall=6.20" Area (ac) CN Description 0.145 98 Paved parking, HSG A 0.145 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 8 Summary for Pond 1 P: MH -2 Inflow Area = 3.015 ac, 45.79% Impervious, Inflow = 5.63 cfs @ 12.10 hrs, Volume Outflow = 5.63 cfs @ 12.10 hrs, Volume Primary = 5.63 cfs @ 12.10 hrs, Volume Inflow Depth > 2.38" = 0.597 of = 0.597 af, = 0.597 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 264.92' @ 12.10 hrs for 100 -yr event Atten= 0%, Lag= 0.0 min Device Routing Invert Outlet Devices #1 Primary 262.20' 12.0" Round Culvert L= 5.0' Ke= 0.500 Inlet/ Outlet Invert= 262.20'/262.10' S=0.0200'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=5.63 cfs @ 12.10 hrs HW=264.92' (Free Discharge) 't--1 =Culvert (Inlet Controls 5.63 cfs @ 7.17 fps) Summary for Pond 11 P: Underground Detention Inflow Area = 2.044 ac, 43.23% Impervious, Inflow = 5.38 cfs @ 12.01 hrs, Volume Outflow = 4.31 cfs @ 12.12 hrs, Volume Primary = 4.31 cfs @ 12.12 hrs, Volume Inflow Depth > 2.29" = 0.389 of = 0.384 af, = 0.384 of for 100 -yr event Atten= 20%, Lag= 6.2 min Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 268.37' @ 12.12 hrs Surf.Area= 1,128 sf Storage= 3,571 cf Plug -Flow detention time= 31.4 min calculated for 0.384 of (99% of inflow) Center -of -Mass det. time= 22.8 min ( 844.8 - 822.0 ) Volume Invert Avail.Storage Storage Description #1 265.25' 4,273 cf 48.0" Round Pipe Storage L= 340.0' Device Ro Invert Outlet Devices #1 Device 3 265.50' 6.0" Vert. Orifice/Grate C= 0.600 #2 Device 3 268.00' 4.0' long Sharp -Crested Rectangular Weir 2 End Contraction(s) #3 Primary 264.90' 12.0" Round Culvert L= 137.0' Ke= 0.500 Inlet/ Outlet Invert= 264.90'/263.53' S=0.0100'/' Cc= 0.900 n=0.013 Corrugated PE, smooth interior, Flow Area= 0.79 sf Primary OutFlow Max=3.99 cfs @ 12.12 hrs HW=268.33' (Free Discharge) L3=Culvert (Passes 3.99 cfs of 5.10 cfs potential flow) �11=Orifice/Grate (Orifice Controls 1.52 cfs @ 7.74 fps) 2=Sharp-Crested Rectangular Weir (Weir Controls 2.47 cfs @ 1.89 fps) 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 9 Summary for Pond 12P: YD -9 Inflow Area = 0.354 ac, 85.34% Impervious, Inflow = 2.53 cfs @ 11.98 hrs, Volume Outflow = 2.53 cfs @ 11.98 hrs, Volume Primary = 2.53 cfs @ 11.98 hrs, Volume Inflow Depth > 5.08" = 0.150 of = 0.150 af, = 0.150 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 271.52' @ 11.98 hrs for 100 -yr event Atten= 0%, Lag= 0.0 min Device Routing Invert Outlet Devices #1 Primary 267.20' 8.0" Round Culvert L= 166.0' Ke= 0.500 Inlet/ Outlet Invert= 267.20'/263.60' S=0.0217'/' Cc= 0.900 n=0.012, Flow Area= 0.35 sf Primary OutFlow Max=2.44 cfs @ 11.98 hrs HW=271.17' (Free Discharge) 't--1 =Culvert (Barrel Controls 2.44 cfs @ 6.98 fps) Summary for Pond 14P: EX CB Inflow Area = 0.354 ac, 85.34% Impervious, Inflow = 2.53 cfs @ 11.98 hrs, Volume Outflow = 2.53 cfs @ 11.98 hrs, Volume Primary = 2.53 cfs @ 11.98 hrs, Volume Inflow Depth > 5.08" = 0.150 of = 0.150 af, = 0.150 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 264.03' @ 11.98 hrs for 100 -yr event Atten= 0%, Lag= 0.0 min Device Routing Invert Outlet Devices #1 Primary 263.10' 12.0" Round Culvert L= 35.0' Ke= 0.500 Inlet/ Outlet Invert= 263.10'/262.09' S=0.0289'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=2.44 cfs @ 11.98 hrs HW=264.01' (Free Discharge) 't--1 =Culvert (Inlet Controls 2.44 cfs @ 3.25 fps) Summary for Pond C13-2: C13-2 Inflow Area = 0.478 ac, 59.10% Impervious, Inflow Depth > 3.15" for 100 -yr event Inflow = 2.59 cfs @ 11.97 hrs, Volume= 0.126 of Outflow = 2.59 cfs @ 11.97 hrs, Volume= 0.126 af, Atten= 0%, Lag= 0.0 min Primary = 2.59 cfs @ 11.97 hrs, Volume= 0.126 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 264.74' @ 11.97 hrs Device Routing Invert Outlet Devices #1 Primary 263.70' 12.0" Round Culvert L= 20.0' Ke= 0.500 Inlet/ Outlet Invert= 263.70'/263.50' S=0.0100'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 10 Primary OutFlow Max=2.51 cfs @ 11.97 hrs HW=264.72' (Free Discharge) 't--1 =Culvert (Barrel Controls 2.51 cfs @ 3.91 fps) Summary for Pond C13-3: C13-3 Inflow Area = 2.538 ac, 43.28% Impervious, Inflow = 4.88 cfs @ 12.11 hrs, Volume Outflow = 4.88 cfs @ 12.11 hrs, Volume Primary = 4.88 cfs @ 12.11 hrs, Volume Inflow Depth > 2.23" = 0.472 of = 0.472 af, = 0.472 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 265.58' @ 12.11 hrs for 100 -yr event Atten= 0%, Lag= 0.0 min Device Routing Invert Outlet Devices #1 Primary 263.43' 12.0" Round Culvert L= 75.0' Ke= 0.500 Inlet/ Outlet Invert= 263.43'/262.20' S=0.0164'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=4.67 cfs @ 12.11 hrs HW=265.45' (Free Discharge) 't--1 =Culvert (Inlet Controls 4.67 cfs @ 5.95 fps) Summary for Pond C13-4: C13-4 Inflow Area = 2.044 ac, 43.23% Impervious, Inflow = 5.38 cfs @ 12.01 hrs, Volume Outflow = 5.38 cfs @ 12.01 hrs, Volume Primary = 5.38 cfs @ 12.01 hrs, Volume Inflow Depth > 2.29" = 0.389 of = 0.389 af, = 0.389 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 271.07' @ 12.01 hrs Device Routing Invert Outlet Devices for 100 -yr event Atten= 0%, Lag= 0.0 min #1 Primary 268.40' 12.0" Round Culvert L= 40.0' Ke= 0.500 Inlet/ Outlet Invert= 268.40'/268.20' S=0.0050'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=5.28 cfs @ 12.01 hrs HW=271.00' (Free Discharge) t--1 =Culvert (Barrel Controls 5.28 cfs @ 6.72 fps) Summary for Pond C13-6: C13-6 Inflow Area = 1.080 ac, 21.10% Impervious, Inflow = 0.96 cfs @ 12.11 hrs, Volume Outflow = 0.96 cfs @ 12.11 hrs, Volume Primary = 0.96 cfs @ 12.11 hrs, Volume Inflow Depth > 0.95" = 0.085 of = 0.085 af, = 0.085 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 269.43' @ 12.11 hrs for 100 -yr event Atten= 0%, Lag= 0.0 min 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HvdroCAD® 10.00-26 s/n 00439 © 2020 HvdroCAD Software Solutions LLC Paae 11 Device Routing Invert Outlet Devices #1 Primary 268.85' 12.0" Round Culvert L= 70.0' Ke= 0.500 Inlet/ Outlet Invert= 268.85'/268.50' S=0.0050'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=0.94 cfs @ 12.11 hrs HW=269.42' (Free Discharge) 't--1 =Culvert (Barrel Controls 0.94 cfs @ 2.94 fps) Summary for Pond MH1: MH -1 Inflow Area = 2.044 ac, 43.23% Impervious, Inflow Depth > 2.29" for 100 -yr event Inflow = 5.38 cfs @ 12.01 hrs, Volume= 0.389 of Outflow = 5.38 cfs @ 12.01 hrs, Volume= 0.389 af, Atten= 0%, Lag= 0.0 min Primary = 5.38 cfs @ 12.01 hrs, Volume= 0.389 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 270.72' @ 12.01 hrs Device Routing Invert Outlet Devices #1 Primary 268.20' 12.0" Round Culvert L= 5.0' Ke= 0.500 Inlet/ Outlet Invert= 268.20'/268.15' S=0.0100'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=5.28 cfs @ 12.01 hrs HW=270.65' (Free Discharge) 't--1 =Culvert (Inlet Controls 5.28 cfs @ 6.72 fps) Summary for Pond SMP -1: Stormwater Planter Inflow Area = 0.194 ac, 76.59% Impervious, Inflow Depth > 4.38" for 100 -yr event Inflow = 1.41 cfs @ 11.97 hrs, Volume= 0.071 of Outflow = 1.22 cfs @ 12.01 hrs, Volume= 0.071 af, Atten= 13%, Lag= 2.7 min Primary = 1.22 cfs @ 12.01 hrs, Volume= 0.071 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs / 2 Peak Elev= 270.73' @ 12.01 hrs Surf.Area= 1,180 sf Storage= 708 cf Plug -Flow detention time= 55.2 min calculated for 0.071 of (100% of inflow) Center -of -Mass det. time= 54.9 min ( 853.4 - 798.5 ) Volume Invert Avail.Storage Storage Description #1 270.00' 1,045 cf Custom Stage Data (Irregular)Listed below (Recalc) Elevation Surf.Area Perim. Voids Inc.Store Cum.Store Wet.Area (feet) (sq -ft) (feet) (%) (cubic -feet) (cubic -feet) (sq -ft) 270.00 764 187.0 0.0 0 0 764 271.00 1,353 205.0 100.0 1,045 1,045 1,359 Device Routing Invert Outlet Devices #1 Device 2 270.00' 2.000 in/hr Exfiltration over Surface area #2 Primary 268.40' 6.0" Round Culvert L= 35.0' Ke= 0.500 Inlet/ Outlet Invert= 268.40'/267.70' S=0.0200'/' Cc= 0.900 2019013 Post Development Type 1124 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 12 n=0.012, Flow Area= 0.20 sf #3 Device 2 270.50' 12.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=1.18 cfs @ 12.01 hrs HW=270.73' (Free Discharge) L2=Culvert (Passes 1.18 cfs of 1.28 cfs potential flow) �11=Exfiltration (Exfiltration Controls 0.05 cfs) 3=Orifice/Grate (Weir Controls 1.13 cfs @ 1.57 fps) Summary for Pond SMP -2: Stormwater Planter Inflow Area = 0.145 ac,100.00% Impervious, Inflow Depth > 5.96" for 100 -yr event Inflow = 1.25 cfs @ 11.96 hrs, Volume= 0.072 of Outflow = 1.17 cfs @ 11.99 hrs, Volume= 0.072 af, Atten= 6%, Lag= 1.7 min Primary = 1.17 cfs @ 11.99 hrs, Volume= 0.072 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs / 2 Peak Elev= 271.23' @ 11.99 hrs Surf.Area= 856 sf Storage= 514 cf Plug -Flow detention time= 46.5 min calculated for 0.072 of (100% of inflow) Center -of -Mass det. time= 45.7 min ( 785.6 - 739.9 ) Volume Invert Avail.Storage Storage Description #1 270.50' 762 cf Custom Stage Data (Irregular)Listed below (Recalc) Elevation Surf.Area Perim. Voids Inc.Store Cum.Store Wet.Area (feet) (sq -ft) (feet) (%) (cubic -feet) (cubic -feet) (sq -ft) 270.50 564 96.0 0.0 0 0 564 271.50 979 125.0 100.0 762 762 1,086 Device Routing Invert Outlet Devices #1 Device 2 270.50' 2.000 in/hr Exfiltration over Surface area #2 Primary 268.50' 8.0" Round Culvert L= 27.0' Ke= 0.500 Inlet/ Outlet Invert= 268.50'/268.23' S=0.0100'/' Cc= 0.900 n=0.012, Flow Area= 0.35 sf #3 Device 2 271.00' 12.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=1.14 cfs @ 11.99 hrs HW=271.23' (Free Discharge) L2=Culvert (Passes 1.14 cfs of 2.58 cfs potential flow) �__3=Orifice/G 1=Exfiltration (Exfiltration Controls 0.04 cfs) rate (Weir Controls 1.10 cfs @ 1.55 fps) Summary for Pond SMP -3: HYDRODYNAMIC SEPARATOR Inflow Area = 3.015 ac, 45.79% Impervious, Inflow Depth > 2.38" for 100 -yr event Inflow = 5.63 cfs @ 12.10 hrs, Volume= 0.597 of Outflow = 5.63 cfs @ 12.10 hrs, Volume= 0.597 af, Atten= 0%, Lag= 0.0 min Primary = 5.63 cfs @ 12.10 hrs, Volume= 0.597 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs 2019013 Post Development Type// 24 -hr 100 -yr Rainfall=6.20" Prepared by The LA Group Printed 3/21/2022 HydroCAD® 10.00-26 s/n 00439 © 2020 HydroCAD Software Solutions LLC Page 13 Peak Elev= 264.73' @ 12.10 hrs Device Routina Invert Outlet Devices #1 Primary 262.01' 12.0" Round Culvert L= 41.0' Ke= 0.500 Inlet/ Outlet Invert= 262.01'/256.79' S=0.1273'/' Cc= 0.900 n=0.012, Flow Area= 0.79 sf Primary OutFlow Max=5.63 cfs @ 12.10 hrs HW=264.73' (Free Discharge) 't--1 =Culvert (Inlet Controls 5.63 cfs @ 7.17 fps) Summary for Link AP -1: AP -1 Inflow Area = 5.106 ac, 46.49% Impervious, Inflow Depth > 2.46" for 100 -yr event Inflow = 10.15 cfs @ 12.00 hrs, Volume= 1.045 of Primary = 10.15 cfs @ 12.00 hrs, Volume= 1.045 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Attachment D Storm Data Job Name and # North Spring Run Minimum Runoff Reduction Volume 3/16/2022 RRv = [(P)(Rv*)(Ai)]/12 Where: Ai = (S)(Aic) Rv = 0.05 + 0.009(I) where I is 100% impervious Ai = impervious cover targeted for runoff reduction Aic = Total area of new impervious cover P = 90% rainfall (see Figure 4.1 in NYS Stormwater Management Design Manual) S = Hydrologic Soil Group (HSG) Specific Reduction Factor (S) A=0.55, B=0.40, C=0.30, D=0.20 S (HSG A) 0.55 Aic 0.25 acres Rv 0.95 90% Rainfall 1.15 Ai 0.136 RRv = 0.012 acre feet = 539 ft' Stormwater Practice Sizing Job Name and # North Sprung Rmi Water Quality Volume Calculation 3/16/2022 WQv= [(P)(Rv)(A)1/12 Where: Rv = 0.05 + 0.009(l) I = impervious cover in percent P = 90% rainfall (see Figure 4.1 in NYS Stormwater Management Design Manual) A = Area in acres Stormwater Planter (SMP -1) % Impervious 76.59% Rv 0.74 90% Rainfall 1.15 Area in Square Feet 8451 WQv Required = 599 ft, 0.014 ac -ft Stormwater Planter (SMP -2) % Impervious 100.00% Rv 0.95 90% Rainfall 1.15 Area in Square Feet 6316 WQv Required = 575 ft' 0.013 ac -ft Hydrodynamic Separator (SMP -3) % Impervious 45.78% Rv 0.46 90% Rainfall 1.15 Area in Square Feet 131333 WQv Required = 5815 ft' 0.133 ac -ft Note: Total contributing area and impervious percentage different in HydroCAD due to SMP -1 contributing area removed from this calculation. New Impervious % Impervious 100.00% Rv 0.95 90% Rainfall 1.15 Area in Square Feet 10759 WQv Required = 980 ft, 0.022 ac -ft Existing impervious (75% Treatment) % Impervious 100.00% Rv 0.95 90% Rainfall 1.15 Area in Square Feet 85973 WQv Calculated = 7827 ft3 0.180 ac -ft WQv Required = 5870 ft' 0.135 ac -ft Stormwater Planter Worksheet Af=WQv*(df)/[k*(hf+df)(tf)] where Af Required Surface Area (ft2) WQv Water Quality Volume (ft) df Depth of the Soil Medium (ft) k The Hyrdaulic Conductivity (ft/day), usually set at 4 ft/day when soil is loosely placed in the planter, but can be varied depending on the properties of the soil media. Sand - 3.5 ft/day (City of Austin 1988); Peat - 2.0 ft/day (Galli 1990); Leaf Compost - 8.7 ft/day (Claytor and Schueler, 1996); Bioretention Soil hf Average Height of Water above planter bed (ft) tf The Design Time to Filter the Treatment Volume Through the Filter Media (days) Enter Site Data For Drainage Area to be Treated by Practice Catchment Impervious Percent Total Area Rv WQv Precipitation Description Number Area Impervious (Acres) (Acres) % t 3 (in) 0.19 0.15 77% 0.74 599 1.15 0 1 Calculate the Mimimum Filter Area Value Units WQv 599 ft3 WQv Depth of Soil 1.5 ft df Media Hydraulic 4 ft/d k Conductivity Average Height of 0.5 ft hf Ponding Filter Time 0.17 d tf Required 2 660 ft Af Area of Filter Area of Filter Width 7.64 ft ft Length 100 Area Provided 764 ft2 Volume 692.693333 Provided Runoff Reduction Soil Type A Through No Planter? Determine the Runoff Reduction RRv 599 ft3 RRv Applied 599 ft 3 Stormwater Planter Worksheet Af=WQv*(df)/[k*(hf+df)(tf)] where Af Required Surface Area (ft2) WQv Water Quality Volume (ft) df Depth of the Soil Medium (ft) k The Hyrdaulic Conductivity (ft/day), usually set at 4 ft/day when soil is loosely placed in the Sand - 3.5 ft/day (City of Austin 1988); Peat - 2.0 ft/day (Galli 1990); Leaf Compost - 8.7 ft/day (Claytor and Schueler, 1996); Bioretention Soil hf Average Height of Water above planter bed (ft) tf The Design Time to Filter the Treatment Volume Through the Filter Media (days) Enter Site Data For Drainage Area to be Treated by Practice Catchment Impervious Percent Total Area Rv WQv Precipitation Description Number Area Impervious (Acres) (Acres) % (ft 3) (in) 0.15 0.15 100% 0.95 575 1.15 0 2 Calculate the Mimimum Filter Area Value Units WQv 575 ft WQv Depth of Soil 1.5 ft df Media Hydraulic 4 ft/d k Conductivity Average Height of 0.5 ft hf Ponding Filter Time 0.17 d tf Required 634 ft 2 Af Area of Filter Area of Filter Width 5.64 ft Length 100 ft Area Provided 564 ft2 Volume 511.36 Provided Runoff Reduction Soil Type A Through Yes Planter? Determine the Runoff Reduction RRv 575 ft 3 RRv Applied 575 ft3 Job Name North Spring Run Channel Protection Volume Calculation 3/16/2022 Pre Development Step 1: Determine On P = 2.15 in. (1-yr. storm) Area = 5.30 acres CN = 61 Ia = 1.279 la/P = 0.59 Tc = 0.45 Hrs. Using Figure 4-II, TR-55 and Tc, determine Qu (csm/in) Qu = 240 csm/in Step 2: Determine Qo/Qi Using Figure B-1, DEC Manual Appendix B for T = 24 hrs. and Qu, determine Qo/Qi Qo/Qi = 0.07 Step 3: Determine Vs/Vr Vs/Vr = 0.682 - 1.43(Qo/Qi) + 1.64 (Qo/Qi)^2 - 0.804 (Qo/Qi)^3 Vs/Vr = 0.590 Step 4: Determine Qd Using Figure 2. 1, TR-55 or SCS TR-16 and P, determine Qd (in of runoff) Qd = 0.19 in Step 5: Determine Cpv Area = 5.30 acres Cpv = Vs = (Vs/Vr) * Qd * A/12 Cpv = 0.049 ac-ft Cpv = 2155 ft3 Cpv Req.= 2155 W Job Name North Spring Run Channel Protection Volume Calculation 3/16/2022 Step 1: Determine Qu P = 2.15 in. (1 -yr. storm) Area = 5.3 acres CN = 64 Ia = 1.125 la/P = 0.52 Tc = 0.45 Hrs. Using Figure 4 -II, TR -55 and Tc, determine Qu (csm/in) Qu = 240 csm/in Step 2: Determine Qo/Qi Using Figure B-1, DEC Manual Appendix B for T = 24 hrs. and Qu, determine Qo/Qi Qo/Qi = 0.07 Step 3: Determine Vs/Vr Vs/Vr = 0.682 - 1.43(Qo/Qi) + 1.64 (Qo/Qi)^2 - 0.804 (Qo/Qi)^3 Vs/Vr = 0.590 Step 4: Determine Qd Using Figure 2. 1, TR -55 or SCS TR -16 and P, determine Qd (in of runoff) Qd = 0.2 in Step 5: Determine Cpv Area = 5.30 acres Cpv = Vs = (Vs/Vr) * Qd * A/12 Cpv = 0.052 ac -ft Cpv = 2269 ft3 Pre Dev 2155 ft3 CPv Required= 113 ft3 Volume reduction achieved through green infrastructure SMP 1 = 599 ft3 SMP 1 = 575 ft3 Cpv Provided= 1174 ft3 Appendix C Map Set Appendix D SWPPP Inspection Form North Spring Run - Saratoga Springs 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 E 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 Date (Identify name of planned practices) Complete 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 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: Michael Birkby (585) 324-0546 Within 1 hour of a spill discovery greater than 2 gallons the following must be notified: Michael Birkby 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 F SPDES General Permit GP -0-20-001 NEWYOR t I Department of uv" Topiffr Environmental Conservation NEW PORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES From CONSTRUCTION AC11VITY Permit No. GP- 0-20-001 Issued Pursuant to Artiole 17, Titles 7, 8 and Article- 70 of the Envi ronmenial Conservation Law Effective Date January 28, 2020 John J. Ferguson Chief Permit Adminisirator Expiratton Date: January 28, 2025 'Xulhormed Signature Date Address: NYS DEC Division of Environmental Permits 625 Broadway, 41h Floor Albany, N.Y. 12203-1750 NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM CONSTRUCTION ACTIVITIES Table of Contents Part 1. PERMIT COVERAGE AND LIMITATIONS.............................................................1 A. Permit Application.................................................................................................1 B. Effluent Limitations Applicable to Discharges from Construction Activities ...........1 C. Post -construction Stormwater Management Practice Requirements ....................4 D. Maintaining Water Quality.....................................................................................8 E. Eligibility Under This General Permit.....................................................................9 F. Activities Which Are Ineligible for Coverage Under This General Permit..............9 Part II. PERMIT COVERAGE........................................................................................... 12 A. How to Obtain Coverage..................................................................................... 12 B. Notice of Intent (NOI) Submittal.......................................................................... 13 C. Permit Authorization............................................................................................ 13 D. General Requirements For Owners or Operators With Permit Coverage ........... 15 E. Permit Coverage for Discharges Authorized Under GP -0-15-002 .......................17 F. Change of Owner or Operator............................................................................. 17 Part III. STORMWATER POLLUTION PREVENTION PLAN(SWPPP)........................... 18 A. General SWPPP Requirements.......................................................................... 18 B. Required SWPPP Contents................................................................................ 20 C. Required SWPPP Components by Project Type ................................................. 24 Part IV. INSPECTION AND MAINTENANCE REQUIREMENTS ..................................... 24 A. General Construction Site Inspection and Maintenance Requirements .............. 24 B. Contractor Maintenance Inspection Requirements ............................................. 24 C. Qualified Inspector Inspection Requirements...................................................... 25 Part V. TERMINATION OF PERMIT COVERAGE........................................................... 29 A. Termination of Permit Coverage......................................................................... 29 Part VI. REPORTING AND RETENTION RECORDS ...................................................... 31 A. Record Retention................................................................................................ 31 B. Addresses........................................................................................................... 31 Part VII. STANDARD PERMIT CONDITIONS.................................................................. 31 A. Duty to Comply.................................................................................................... 31 B. Continuation of the Expired General Permit........................................................ 32 C. Enforcement........................................................................................................ 32 D. Need to Halt or Reduce Activity Not a Defense ................................................... 32 E. Duty to Mitigate................................................................................................... 33 F. Duty to Provide Information................................................................................. 33 G. Other Information................................................................................................ 33 H. Signatory Requirements...................................................................................... 33 I. Property Rights................................................................................................... 35 J. Severability.......................................................................................................... 35 PREFACE Pursuant to Section 402 of the Clean Water Act ("CWA"), stormwater discharges from certain construction activities are unlawful unless they are authorized by a National Pollutant Discharge Elimination System (`NPDES) permit or by a state permit program. New York administers the approved State Pollutant Discharge Elimination System (SPDES) program with permits issued in accordance with the New York State Environmental Conservation Law (ECL) Article 17, Titles 7, 8 and Article 70. An owner or operator of a construction activitythat is eligible for coverage under this permit must obtain coverage prior to the commencement of construction activity. Activities that fit the definition of "construction activity', as defined under 40 CFR 122.26(b)(14)(x), (15)(i), and (15)(ii), constitute construction of a point source and therefore, pursuant to ECL section 17-0505 and 17-0701, the owneroroperator must have coverage under a SPDES permit prior to commencing construction activity. The owner or operatorcannot wait until there is an actual discharge from the construction site to obtain permit coverage. *Note: The italicized wordsiphrases within this permit are defined in Appendix A. K. Requirement to Obtain Coverage Under an Alternative Permit ........................... 35 L. Proper Operation and Maintenance.................................................................... 36 M. Inspection and Entry........................................................................................... 36 N. Permit Actions..................................................................................................... 37 O. Definitions........................................................................................................... 37 P. Re -Opener Clause.............................................................................................. 37 Q. Penalties for Falsification of Forms and Reports ................................................. 37 R. Other Permits...................................................................................................... 38 APPENDIX A —Acronyms and Definitions....................................................................... 39 Acronyms...................................................................................................................... 39 Definitions..................................................................................................................... 40 APPENDIX B — Required SWPPP Components by Project Type .................................... 48 Table1.......................................................................................................................... 48 Table2.......................................................................................................................... 50 APPENDIX C —Watersheds Requiring Enhanced Phosphorus Removal ........................ 52 APPENDIX D —Watersheds with Lower Disturbance Threshold ..................................... 58 APPENDIX E -303(d) Segments Impaired by Construction Related Pollutant(s)........... 59 APPENDIX F — List of NYS DEC Regional Offices.......................................................... 65 Part 1. PERMIT COVERAGE AND LIMITATIONS A. Permit Application This permit authorizes stormwater discharges to surface waters of the State from the following construction activities identified within 40 CFR Parts 122.26(b)(14)(x), 122.26(b)(15)(i) and 122.26(b)(15)(ii), provided all of the eligibility provisions of this permit are met: 1. Construction activities involving soil disturbances of one (1) or more acres; including disturbances of less than one acre that are part of a largercommon plan ofdevelopment or sale that will ultimately disturb one or more acres of land, excluding routine maintenance activity that is performed to maintain the original line and grade, hydraulic capacity or original purpose of a facility, 2. Construction activities involving soil disturbances of less than one (1) acre where the Department has determined that a SPDES permit is required for stormwater discharges based on the potential for contribution to a violation of a water quality standard or for significant contribution of pollutants to surface waters of the State_ 3. Construction activities located in the watershed(s) identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. B. Effluent Limitations Applicable to Discharges from Construction Activities Discharges authorized by this permit must achieve, at a minimum, the effluent limitations in Part I.B.A. (a) —(f) of this permit. These limitations representthe degree of effluent reduction attainable by the application of best practicable technology currently available. 1. Erosion and Sediment Control Requirements- The owneroroperator must select, design, install, implement and maintain control measures to minimize the discharge of pollutants and prevent a violation of the water quality standards. The selection, design, installation, implementation, and maintenance of these control measures must meetthe non -numeric effluent limitations in Part I.B.1.(a) — (f) of this permit and be in accordance with the New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016, using sound engineering judgment. Where control measures are not designed in conformance with the design criteria included in the technical standard, the owneroroperator must include in the Stormwater Pollution Prevention Plan ("SWPPP") the reason(s) for the (Parc i B 1.e) listed in Appendix E or is located in one of the watersheds listed in Appendix C, the application of soil stabilization measures must be initiated by the end of the next business day and completed within seven (7) days from the date the current soil disturbance activity ceased. See Appendix A for definition of Temporarily Ceased. c. Dewatering. Discharges from dewatering activities, including discharges from dewatering of trenches and excavations, must be managed by appropriate control measures. d. Pollution Prevention Measures. Design, install, implement, and maintain effective pollution prevention measures to minimize the discharge of pollutants and prevent a violation of the water quality standards. At a minimum, such measures must be designed, installed, implemented and maintained to: (i) Minimize the discharge of pollutants from equipment and vehicle washing, wheel wash water, and other wash waters. This applies to washing operations that use clean water only. Soaps, detergents and solvents cannot be used, (ii) Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, hazardous and toxic waste, and other materials present on the site to precipitation and to stormwater. Minimization of exposure is not required in cases where the exposure to precipitation and to stormwater will not result in a discharge of pollutants, or where exposure of a specific material or product poses little risk of stormwater contamination (such as final products and materials intended for outdoor use) , and (iii) Prevent the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures. e. Prohibited Discharges. The following discharges are prohibited: (i) Wastewater from washout of concrete, (ii) Wastewater from washout and cleanout of stucco, paint, form release oils, curing compounds and other construction materials, (Part LB 1) deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. a. Erosion and Sediment Controls. Design, install and maintain effective erosion and sediment controls to minimize the discharge of pollutants and prevent a violation of the water quality standards. At a minimum, such controls must be designed, installed and maintained to: (i) Minimize soil erosion through application of runoff control and soil stabilization control measure to minimize pollutant discharges, (ii) Control stormwater discharges, including both peak flowrates and total stormwater volume, to minimize channel and streamhank erosion and scour in the immediate vicinity of the discharge points, (iii) Minimize the amount of soil exposed during construction activity, (iv) Minimize the disturbance of steep slopes, (v) Minimize sediment discharges from the site, (vi) Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas and maximize stormwater infiltration to reduce pollutant discharges, unless infeasible, (vii) Minimize soil compaction. Minimizing soil compaction is not required where the intended function of a specific area of the site dictates that it be compacted, (viii) Unless infeasible, preserve a sufficient amount of topsoil to complete soil restoration and establish a uniform, dense vegetative cover, and (ix) Minimize dust. On areas of exposed soil, minimize dust through the appropriate application of water or other dust suppression techniques to control the generation of pollutants that could be discharged from the site. b. Soil Stabilization. In areas where soil disturbance activity has temporarily or permanently ceased, the application of soil stabilization measures must be initiated by the end of the next business day and completed within fourteen (14) days from the date the current soil disturbance activity ceased. For construction sites that directly discharge to one of the 303(d) segments (Parc IB.1.e iii) (iii) Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance, (iv) Soaps or solvents used in vehicle and equipment washing, and (v) Toxic or hazardous substances from a spill or other release. f. Surface Outlets. When discharging from basins and impoundments, the outlets shall be designed, constructed and maintained in such a manner that sediment does not leave the basin or impoundment and that erosion at or below the outlet does not occur. C. Post -construction Stormwater Management Practice Requirements The owneror operator of a construction activity that requires post -construction stormwater management practices pursuant to Part III.C. of this permit must select, design, install, and maintain the practices to meet the performance criteria in the New York State Stormwater Management Design Manual ("Design Manual"), dated January 2015, using sound engineering judgment. Where post -construction stormwater management practices ("SMPs") are not designed in conformance with the performance criteria in the Design Manual, the owner or operator must include in the SWPPP the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. 2. The owner or operator of a construction activitythat requires post -construction stormwater management practices pursuantto Part III.C. of this permit must design the practices to meetthe applicable sizing criteria in Part I.C.2.a., b., c. or d. of this permit. a. Sizing Criteria for New Development (i) Runoff Reduction Volume ("RRv"): Reduce the total Water Quality Volume (' WQv") by application of RR techniques and standard SMPs with RRv capacity. The total WQv shall be calculated in accordance with the criteria in Section 4.2 of the Design Manual. (ii) Minimum RRv and Treatment of Remaining Total WQv: Construction activities that cannot meet the criteria in Part I.C.2.a.(i) of this permit due to site limitations shall direct runoff from all newly constructed impervious areas to a RR technique or standard SMP with RRv capacity unless infeasible. The specific site limitations that prevent the reduction of 100% of the WQv shall be documented in the SWPPP. (Parc ICza ii) For each impervious area that is not directed to a RR technique or standard SMP with RRv capacity, the SWPPP must include documentation which demonstrates that all options were considered and for each option explains why it is considered infeasible. In no case shall the runoff reduction achieved from the newly constructed impervious areas be less than the Minimum RRv as calculated using the criteria in Section 4.3 of the Design Manual. The remaining portion of the total WQv that cannot be reduced shall be treated by application of standard SMPs. (iii) Channel Protection Volume ("Cpv"): Provide 24 hour extended detention of the post -developed 1 -year, 24-hour storm event, remaining after runoff reduction. The Cpv requirement does not apply when: (1) Reduction of the entire Cpv is achieved by application of runoff reduction techniques or infiltration systems, or (2) The site discharges directly to tidal waters, or fifth order or larger streams. (iv) Overbank Flood Control Criteria ("Qp"): Requires storage to attenuate the post -development 10 -year, 24-hour peak discharge rate (Qp) to predevelopment rates. The Qp requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. (v) Extreme Flood Control Criteria ("Qf"): Requires storage to attenuate the post -development 100 -year, 24-hour peak discharge rate (Qf) to predevelopment rates. The Of requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. b. Sizing Criteria for New Development in Enhanced Phosphorus Removal Watershed (i) Runoff Reduction Volume (RRv): Reduce the total Water Quality Volume (WQv) by application of RR techniques and standard SMPs with RRv capacity. The total WQv is the runoff volume from the 1 -year, 24 hour design storm over the post -developed watershed and shall be (Pam Czq c. Sizing Criteria for Redevelopment Activity Water Quality Volume (WQv): The WQv treatment objective for redevelopment activity shall be addressed by one of the following options. Redevelopment activities located in an Enhanced Phosphorus Removal Watershed (see Part III.B.3. and Appendix C of this permit) shall calculate the WQv in accordance with Section 10.3 of the Design Manual. All other redevelopment activities shall calculate the WQv in accordance with Section 4.2 of the Design Manual. (1) Reduce the existing impervious cover by a minimum of 25% of the total disturbed, impervious area. The Soil Restoration criteria in Section 5.1.6 of the Design Manual must be applied to all newly created pervious areas, or (2) Capture and treat a minimum of 25% of the WQv from the disturbed, impervious area by the application of standard SMPs, or reduce 25 of the WQv from the disturbed, impervious area by the application of RR techniques or standard SMPs with RRv capacity., or (3) Capture and treat a minimum of 75% of the WQv from the disturbed, impervious area as well as any additional runoff from tributary areas by application of the alternative practices discussed in Sections 9.3 and 9.4 of the Design Manual., or (4)Application of a combination of 1, 2 and 3 above that provide a weighted average of at least two of the above methods. Application of this method shall be in accordance with the criteria in Section 9.2.1(B) (IV) of the Design Manual. If there is an existing post -construction stormwater management practice located on the site that captures and treats runoff from the impervious area that is being disturbed, the WQv treatment option selected must, at a minimum, provide treatment equal to the treatment that was being provided by the existing practice(s) if that treatment is greater than the treatment required by options 1 — 4 above. (ii) Channel Protection Volume (Cpv): Not required if there are no changes to hydrology that increase the discharge rate from the project site. (iii) Overbank Flood Control Criteria (Qp): Not required if there are no changes to hydrology that increase the discharge rate from the project site. (iv) Extreme Flood Control Criteria (Qf): Not required if there are no changes to hydrology that increase the discharge rate from the project site (Pam Ch i) calculated in accordance with the criteria in Section 10.3 of the Design Manual. Minimum RRv and Treatment of Remaining Total WQv: Construction activities that cannot meet the criteria in Part I.C.2.b.(i) of this permit due to site limitations shall direct runoff from all newly constructed impervious areas to a RR technique or standard SMP with RRv capacity unless infeasible. The specific site limitations that prevent the reduction of 100% of the WQv shall be documented in the SWPPP. For each impervious area that is not directed to a RR technique or standard SMP with RRv capacity, the SWPPP must include documentation which demonstrates that all options were considered and for each option explains why it is considered infeasible_ In no case shall the runoff reduction achieved from the newly constructed impervious areas be less than the Minimum RRv as calculated using the criteria in Section 10.3 of the Design Manual. The remaining portion of the total WQv that cannot be reduced shall be treated by application of standard SM Ps. (iii) Channel Protection Volume (Cpv): Provide 24 hour extended detention of the post -developed 1 -year, 24-hour storm event, remaining after runoff reduction. The Cpv requirement does not apply when: (1) Reduction of the entire Cpv is achieved by application of runoff reduction techniques or infiltration systems, or (2) The site discharges directly to tidal waters, or fifth order or larger streams. (iv) Overbank Flood Control Criteria (Qp): Requires storage to attenuate the post -development 10 -year, 24-hour peak discharge rate (Qp) to predevelopment rates. The Qp requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. (v) Extreme Flood Control Criteria (Qf): Requires storage to attenuate the post -development 100 -year, 24-hour peak discharge rate (Qf) to predevelopment rates. The Of requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. (Pam C z d d. Sizing Criteria for Combination of Redevelopment Activity and New Development Construction projects that include both New Development and Redevelopment Activity shall provide post -construction stormwater management controls that meet the sizing criteria calculated as an aggregate of the Sizing Criteria in Part I.C.2.a. or b. of this permit for the New Development portion of the project and Part I.C.2.c of this permit for Redevelopment Activity portion of the project. D. Maintaining Water Quality The Department expects that compliance with the conditions of this permit will control discharges necessary to meet applicable water quality standards. It shall be a violation of the ECL for any discharge to either cause or contribute to a violation of water quality standards as contained in Parts 700 through 705 of Title 6 of the Official Compilation of Codes, Rules and Regulations of the State of New York, such as: 1. There shall be no increase in turbidity that will cause a substantial visible contrast to natural conditions, There shall be no increase in suspended, colloidal or settleable solids that will cause deposition or impair the waters for their best usages, and 3. There shall be no residue from oil and floating substances, nor visible oil film, nor globules of grease. If there is evidence indicating that the stormwater discharges authorized by this permit are causing, have the reasonable potential to cause, or are contributing to a violation of the water quality standards, the owner or operator must take appropriate corrective action in accordance with Part IV.C.5. of this general permit and document in accordance with Part IV.C.4. of this general permit. To address the water quality standard violation the owner or operator may need to provide additional information, include and implement appropriate controls in the SWPPP to correct the problem, or obtain an individual SPDES permit. If there is evidence indicating that despite compliance with the terms and conditions of this general permit it is demonstrated that the stormwater discharges authorized by this permit are causing or contributing to a violation of water quality standards, or if the Department determines that a modification of the permit is necessary to prevent a violation of water quality standards, the authorized discharges will no longer be eligible for coverage under this permit. The Department may require the owner or operatorto obtain an individual SPDES permit to continue discharging. I7=iiil E. Eligibility Under This General Permit 1. This permit may authorize all discharges of stormwater from construction activity to surface waters of the State and groundwaters except for ineligible discharges identified under subparagraph F. of this Part. 2. Except for non-stormwater discharges explicitly listed in the next paragraph, this permit only authorizes stormwater discharges, including stormwater runoff, snowmelt runoff, and surface runoff and drainage, from construction activities. 3. Notwithstanding paragraphs E.1 and E.2 above, the following non-stormwater discharges are authorized by this permit: those listed in 6 NYCRR 750- 1.2(a)(29)(vi), with the following exception: "Discharges from firefighting activities are authorized only when the firefighting activities are emergencies/unplanned", waters to which other components have not been added that are used to control dust in accordance with the SWPPP, and uncontaminated discharges from construction site de -watering operations. All non-stormwater discharges must be identified in the SWPPP. Under all circumstances, the owneroroperator must still comply with water quality standards in Part LD of this permit. 4. The owneroroperator must maintain permit eligibility to discharge under this permit. Any discharges that are not compliant with the eligibility conditions of this permit are not authorized by the permit and the owneroroperator must either apply for a separate permitto cover those ineligible discharges ortake steps necessary to make the discharge eligible for coverage. F. Activities Which Are Ineligible for Coverage Under This General Permit All of the following are not authorized by this permit: 1. Discharges after construction activities have been completed and the site has undergone final stabilization, 2. Discharges that are mixed with sources of non-stormwater other than those expressly authorized under subsection E.3. of this Part and identified in the SWPPP required by this permit, 3. Discharges that are required to obtain an individual SPDES permit or another SPDES general permit pursuant to Part VII.K. of this permit, 4. Construction activities or discharges from construction activities that may adversely affect an endangered or threatened species unless the owneror (Parc I F8) 8. Construction activities that have the potential to affect an historic property, unless there is documentation that such impacts have been resolved. The following documentation necessary to demonstrate eligibility with this requirement shall be maintained on site in accordance with Part II. D.2 of this permit and made available to the Department in accordance with Part VILF of this permit: Documentation that the construction activity is not within an archeologically sensitive area indicated on the sensitivity map, and that the construction activity is not located on or immediately adjacent to a property listed or determined to be eligible for listing on the National or State Registers of Historic Places, and that there is no new permanent building on the construction site within the following distances from a building, structure, or object that is more than 50 years old, or if there is such a new permanent building on the construction site within those parameters that NYS Office of Parks, Recreation and Historic Preservation (OPRHP), a Historic Preservation Commission of a Certified Local Government, or a qualified preservation professional has determined that the building, structure, or object more than 50 years old is not historically/archeologically significant. • 1-5 acres of disturbance - 20 feet • 5-20 acres of disturbance - 50 feet • 20+ acres of disturbance - 100 feet, or b. DEC consultation form sent to OPRHP, and copied to the NYS DEC Agency Historic Preservation Officer (APO), and (i) the State Environmental Quality Review (SEQR) Environmental Assessment Form (EAF) with a negative declaration or the Findings Statement, with documentation of OPRHP's agreement with the resolution, or (ii) documentation from OPRHP thatthe construction activitywill result in No Impact, or (iii) documentation from OPRHP providing a determination of No Adverse Impact, or (iv) a Letter of Resolution signed by the owner/operator, OPRHP and the DEC APO which allows for this construction activity to be eligible for coverage under the general permit in terms of the State Historic Preservation Act (SHPA), or c. Documentation of satisfactory compliance with Section 106 of the National Historic Preservation Act for a coterminous project area: operator has obtained a permit issued pursuant to 6 NYCRR Part 182 for the project or the Department has issued a letter of non -jurisdiction for the project. All documentation necessary to demonstrate eligibility shall be maintained on site in accordance with Part II.D.2 of this permit, 5. Discharges which either cause or contribute to a violation of water quality standards adopted pursuant to the ECL and its accompanying regulations, 6. Construction activities for residential, commercial and institutional projects: a. Where the discharges from the construction activities are tributary to waters of the state classified as AA or AA -s, and b. Which are undertaken on land with no existing impervious cover, and c. Which disturb one (1) or more acres of land designated on the current United States Department of Agriculture ("USDA") Soil Survey as Soil Slope Phase "D", (provided the map unit name is inclusive of slopes greater than 25%), or Soil Slope Phase "E" or "F" (regardless of the map unit name), or a combination of the three designations. 7. Construction activities for linear transportation projects and linear utility projects: a. Where the discharges from the construction activities are tributary to waters of the state classified as AA or AA -s, and b. Which are undertaken on land with no existing impervious cover, and c. Which disturb two (2) or more acres of land designated on the current USDA Soil Survey as Soil Slope Phase "D" (provided the map unit name is inclusive of slopes greater than 25%), or Soil Slope Phase "E" or "F" (regardless of the map unit name), or a combination of the three designations. 10 (Parc rF 8. c) (i) No Affect (ii) No Adverse Affect (iii) Executed Memorandum of Agreement, or d. Documentation that: (i) SHPA Section 14.09 has been completed by NYS DEC or another state agency. 9. Discharges from construction activities that are subject to an existing SPDES individual or general permit where a SPDES permit for construction activity has been terminated or denied, or where the owneror operator has failed to renew an expired individual permit. Part II. PERMIT COVERAGE A. How to Obtain Coverage 1. An owneror operator of a construction activity that is not subject to the requirements of a regulated, traditional land use control MS4 must first prepare a SWPPP in accordance with all applicable requirements of this permit and then submit a completed Notice of Intent (NOI) to the Department to be authorized to discharge under this permit. 2. An owneror operator of a construction activity that is subject to the requirements of a regulated, traditional land use control MS4 must first prepare a SWPPP in accordance with all applicable requirements of this permit and then have the SWPPP reviewed and accepted by the regulated, traditional land use control MS4 prior to submitting the NOI to the Department. The owner or operator shall have the "MS4 SWPPP Acceptance" form signed in accordance with Part VII.H., and then submit that form along with a completed NOI to the Department. 3. The requirement for an owner or operatorto have its SWPPP reviewed and accepted by the regulated, traditional land use control MS4 prior to submitting the NOI to the Department does not apply to an owner or operatorthat is obtaining permit coverage in accordance with the requirements in Part II. F. (Change of Owner or Operator) or where the owner or operator of the construction activity is the regulated, traditional land use control MS4 . This exemption does not apply to construction activities subject to the New York City Administrative Code. 12 H B. Notice of Intent (NOI) Submittal 1. Prior to December 21, 2020, an owner or operator shall use either the electronic (eNO1) or paper version of the NOI that the Department prepared. Both versions of the NOI are located on the Department's website (http://www.dec.ny.gov/ ). The paper version of the NOI shall be signed in accordance with Part VII.H. of this permit and submitted to the following address: NOTICE OF INTENT NYS DEC, Bureau of Water Permits 625 Broadway, 41h Floor Albany, New York 12233-3505 2. Beginning December 21, 2020 and in accordance with EPA's 2015 NPDES Electronic Reporting Rule (40 CFR Part 127), the owner or operator must submit the NOI electronically using the Department's online NOI. 3. The owner or operator shall have the SWPPP preparer sign the "SWPPP Preparer Certification" statement on the NOI prior to submitting the form to the Department. 4. As of the date the NOI is submitted to the Department, the owner or operator shall make the NOI and SWPPP available for review and copying in accordance with the requirements in Part VII.F. of this permit. C. Permit Authorization 1. An owneror operator shall not commence construction activity until their authorization to discharge under this permit goes into effect. 2. Authorization to discharge under this permit will be effective when the owneror operator has satisfied all of the following criteria: a. project review pursuant to the State Environmental Quality Review Act ("SEQRA") have been satisfied, when SEQRA is applicable. See the Department's website (http://www.dec.nv.gov/) for more information, b. where required, all necessary Department permits subject to the Uniform Procedures Act ("UPA') (see 6 NYCRR Part 621), or the equivalent from another New York State agency, have been obtained, unless otherwise notified by the Department pursuant to 6 NYCRR 621.3(a)(4). Owners or operators of construction activities that are required to obtain UPA permits (Part II C 3.b) b. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4: (i) Five (5) business days from the date the Department receives both a complete electronic version of the NOI (eNO1) and signed "MS4 SWPPP Acceptance" form, or (ii) Ten (10) business days from the date the Department receives both a complete paper version of the NOI and signed "MS4 SWPPP Acceptance" form. 4. Coverage under this permit authorizes stormwater discharges from only those areas of disturbance that are identified in the NOI. If an owner or operator wishes to have stormwater discharges from future or additional areas of disturbance authorized, they must submit a new NOI that addresses that phase of the development, unless otherwise notified by the Department. The owneror operator shall not commence construction activity on the future or additional areas until their authorization to discharge under this permit goes into effect in accordance with Part II.C. of this permit. D. General Requirements For Owners or Operators With Permit Coverage 1. The owner or operator shall ensure thatthe provisions of the SWPPP are implemented from the commencement of construction activity until all areas of disturbance have achieved final stabilization and the Notice of Termination ("NOT") has been submitted to the Department in accordance with Part V. of this permit. This includes any changes made to the SWPPP pursuant to Part III.A.4. of this permit. 2. The owneror operator shall maintain a copy of the General Permit (GP -0-20- 001), NOI, NOI Acknowledgment Letter, SWPPP, MS4 SWPPP Acceptance form, inspection reports, responsible contractor's or subcontractor's certification statement (see Part III.A.6.), and all documentation necessary to demonstrate eligibility with this permit at the construction site until all disturbed areas have achieved final stabilization and the NOT has been submitted to the Department. The documents must be maintained in a secure location, such as a job trailer, on-site construction office, or mailbox with lock. The secure location must be accessible during normal business hours to an individual performing a compliance inspection. 3_ The owner or operator of a construction activityshall not disturb greaterthan five (5) acres of soil at any one time without prior written authorization from the Department or, in areas underthe jurisdiction of a regulated, traditiona/land (Par[II Cb) must submit a preliminary SWPPP to the appropriate DEC Permit Administrator atthe Regional Office listed in Appendix F atthe time all other necessary UPA permit applications are submitted. The preliminary SWPPP must include sufficient information to demonstrate that the construction activity qualifies for authorization under this permit, c. the final SWPPP has been prepared, and d. a complete NOI has been submitted to the Department in accordance with the requirements of this permit. 3. An owner or operator that has satisfied the requirements of Part II.C.2 above will be authorized to discharge stormwater from their construction activity in accordance with the following schedule: a. For construction activities that are not subject to the requirements of a regulated, traditional land use control MS4: (i) Five (5) business days from the date the Department receives a complete electronic version of the NOI (eNO1) for construction activities with a SWPPP that has been prepared in conformance with the design criteria in the technical standard referenced in Part III.B.1 and the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, for construction activities that require post -construction stormwater management practices pursuant to Part III.C., or (ii) Sixty (60) business days from the date the Department receives a complete NOI (electronic or paper version) for construction activities with a SWPPP that has not been prepared in conformance with the design criteria in technical standard referenced in Part III.B.1. or, for construction activities that require post -construction stormwater management practices pursuant to Part III.C., the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, or, (iii) Ten (10) business days from the date the Department receives a complete paper version of the NOI for construction activities with a SWPPP that has been prepared in conformance with the design criteria in the technical standard referenced in Part III.B.1 and the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, for construction activities that require post -construction stormwater management practices pursuant to Part III.C. (Part II.D 3) use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity). At a minimum, the owneror operator must comply with the following requirements in order to be authorized to disturb greater than five (5) acres of soil at any one time: a. The owneror operator shall have a qualified inspector conduct at least two (2) site inspections in accordance with Part IV.C. of this permit every seven (7) calendar days, for as long as greater than five (5) acres of soil remain disturbed. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. b. In areas where soil disturbance activity has temporarily or permanently ceased, the application of soil stabilization measures must be initiated by the end of the next business day and completed within seven (7) days from the date the current soil disturbance activity ceased. The soil stabilization measures selected shall be in conformance with the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016. c. The owneror operator shall prepare a phasing plan that defines maximum disturbed area per phase and shows required cuts and fills. d. The owneror operator shall install any additional site-specific practices needed to protect water quality. e. The owneror operator shall include the requirements above in their SWPPP. 4. In accordance with statute, regulations, and the terms and conditions of this permit, the Department may suspend or revoke an owner's or operator's coverage under this permit at any time if the Department determines that the SWPPP does not meet the permit requirements or consistent with Part VII.K.. 5. Upon a finding of significant non-compliance with the practices described in the SWPPP or violation of this permit, the Department may order an immediate stop to all activity at the site until the non-compliance is remedied. The stop work order shall be in writing, describe the non-compliance in detail, and be sent to the owner or operator. 6. For construction activities that are subject to the requirements of a regulated, traditional /and use control MS4, the owner or operator shall notify the (Part I I. D.6) regulated, traditional /and use control MS4 in writing of any planned amendments or modifications to the post -construction stormwater management practice component of the SWPPP required by Part III.A. 4. and 5. of this permit. Unless otherwise notified by the regulated, traditional land use control MS4, the owner or operator shall have the SWPPP amendments or modifications reviewed and accepted by the regulated, traditional land use control MS4 prior to commencing construction of the post -construction stormwater management practice. E. Permit Coverage for Discharges Authorized Under GP -0-15-002 1. Upon renewal of SPDES General Permitfor Stormwater Discharges from Construction Activity (Permit No. GP -0-15-002), an owner or operator of a construction activity with coverage under GP -0-15-002, as of the effective date of GP- 0-20-001, shall be authorized to discharge in accordance with GP- 0-20- 001, unless otherwise notified by the Department. An owneroroperator may continue to implement the technical/design components of the post -construction stormwater management controls provided that such design was done in conformance with the technical standards in place at the time of initial project authorization. However, they must comply with the other, non -design provisions of GP -0-20-001. F. Change of Owner or Operator 1. When property ownership changes or when there is a change in operational control over the construction plans and specifications, the original owneror operator must notify the new owneror operator, in writing, of the requirement to obtain permit coverage by submitting a NOI with the Department. For construction activities subject to the requirements of a regulated, traditional land use control MS4, the original owneroroperator must also notify the MS4, in writing, of the change in ownership at least 30 calendar days prior to the change in ownership. 2. Once the new owner or operator obtains permit coverage, the original owneror operatorshall then submit a completed NOT with the name and permit identification number of the new owner or operator to the Department atthe address in Part I.B.A.Iof this permit. If the original owneroroperator maintains ownership of a portion of the construction activity and will disturb soil, they must maintain their coverage under the permit. 3. Permit coverage for the new owneror operatorwill be effective as of the date the Department receives a complete NOI, provided the original owneror (Parc IIIA 4.b) b. whenever there is a change in design, construction, or operation at the construction site that has or could have an effect on the discharge of pollutants, c. to address issues or deficiencies identified during an inspection by the qualified inspector, the Department or other regulatory authority, and d. to document the final construction conditions. The Department may notify the owneror operator at any time that the SWPPP does not meet one or more of the minimum requirements of this permit. The notification shall be in writing and identify the provisions of the SWPPP that require modification. Within fourteen (14) calendar days of such notification, or as otherwise indicated by the Department, the owneroroperator shall make the required changes to the SWPPP and submit written notification to the Department that the changes have been made. If the owneror operator does not respond to the Department's comments in the specified time frame, the Department may suspend the owner's or operator's coverage under this permit or require the owneror operatorto obtain coverage under an individual SPDES permit in accordance with Part I.D.A.Iof this permit. Prior to the commencement of construction activity, the owneror operator must identify the contractor(s) and subcontractor(s) that will be responsible for installing, constructing, repairing, replacing, inspecting and maintaining the erosion and sediment control practices included in the SWPPP, and the contractor(s) and subcontractor(s) that will be responsible for constructing the post -construction stormwater management practices included in the SWPPP. The owneror operator shall have each of the contractors and subcontractors identify at least one person from their company that will be responsible for implementation of the SWPPP. This person shall be known as the trained contractor. The owneror operatorshall ensure that at least one trained contractor is on site on a daily basis when soil disturbance activities are being performed. The owneror operator shall have each of the contractors and subcontractors identified above sign a copy of the following certification statement below before they commence any construction activity. "I hereby certify under penalty of law that I understand and agree to comply with the terms and conditions of the SWPPP and agree to implement any corrective actions identified by the qualified inspector during a site inspection. I also understand that the owneroroperator must comply with operatorwas not subject to a sixty (60) business day authorization period that has not expired as of the date the Department receives the NOI from the new owner or operator. Part III. STORMWATER POLLUTION PREVENTION PLAN (SWPPP) A. General SWPPP Requirements 1. A SWPPP shall be prepared and implemented by the owneror operator of each construction activity covered by this permit. The SWPPP must document the selection, design, installation, implementation and maintenance of the control measures and practices that will be used to meet the effluent limitations in Part I.B. of this permit and where applicable, the post -construction stormwater management practice requirements in Part I.C. of this permit. The SWPPP shall be prepared prior to the submittal of the NOI. The NOI shall be submitted to the Department prior to the commencement of construction activity. A copy of the completed, final NOI shall be included in the SWPPP. 2. The SWPPP shall describe the erosion and sediment control practices and where required, post -construction stormwater management practices that will be used and/or constructed to reduce the pollutants in stormwater discharges and to assure compliance with the terms and conditions of this permit. In addition, the SWPPP shall identify potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges. 3. All SWPPPs that require the post -construction stormwater management practice component shall be prepared by a qualified professional that is knowledgeable in the principles and practices of stormwater management and treatment. 4. The owneror operator must keep the SWPPP current so that it at all times accurately documents the erosion and sediment controls practices that are being used or will be used during construction, and all post -construction stormwater management practices that will be constructed on the site. At a minimum, the owneroroperator shall amend the SWPPP, including construction drawings: a. whenever the current provisions prove to be ineffective in minimizing pollutants in stormwater discharges from the site, (Parc III .A.6) the terms and conditions of the most current version of the New York State Pollutant Discharge Elimination System ("SPDES") general permit for stormwater discharges from construction activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore, I am aware that there are significant penalties for submitting false information, that I do not believe to be true, including the possibility of fine and imprisonment for knowing violations" In addition to providing the certification statement above, the certification page must also identify the specific elements of the SWPPP that each contractor and subcontractor will be responsible for and include the name and title of the person providing the signature, the name and title of the trained contractor responsible for SWPPP implementation, the name, address and telephone number of the contracting firm, the address (or other identifying description) of the site, and the date the certification statement is signed. The owneror operatorshall attach the certification statement(s) to the copy of the SWPPP that is maintained at the construction site. If new or additional contractors are hired to implement measures identified in the SWPPP after construction has commenced, they must also sign the certification statement and provide the information listed above. 7. For projects where the Department requests a copy of the SWPPP or inspection reports, the owner or operatorshall submit the documents in both electronic (PDF only) and paper format within five (5) business days, unless otherwise notified by the Department. B. Required SWPPP Contents Erosion and sediment control component - All SWPPPs prepared pursuant to this permit shall include erosion and sediment control practices designed in conformance with the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016. Where erosion and sediment control practices are not designed in conformance with the design criteria included in the technical standard, the owneroroperator must demonstrate equivalence to the technical standard. At a minimum, the erosion and sediment control component of the SWPPP shall include the following: a. Background information about the scope of the project, including the location, type and size of project b. A site map/construction drawing(s) for the project, including a general location map. At a minimum, the site map shall show the total site area, all improvements, areas of disturbance, areas that will not be disturbed, existing vegetation, on-site and adjacent off-site surface water(s), floodplain/floodway boundaries, wetlands and drainage patterns that could be affected by the construction activity, existing and final contours , locations of different soil types with boundaries, material, waste, borrow or equipment storage areas located on adjacent properties, and location(s) of the stormwater discharge(s), c. A description of the soil(s) present at the site, including an identification of the Hydrologic Soil Group (HSG); d. A construction phasing plan and sequence of operations describing the intended order of construction activities, including clearing and grubbing, excavation and grading, utility and infrastructure installation and any other activity at the site that results in soil disturbance, e. A description of the minimum erosion and sediment control practices to be installed or implemented for each construction activitythat will result in soil disturbance. Include a schedule that identifies the timing of initial placement or implementation of each erosion and sediment control practice and the minimum time frames that each practice should remain in place or be implemented, f. A temporary and permanent soil stabilization plan that meets the requirements of this general permit and the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016, for each stage of the project, including initial land clearing and grubbing to project completion and achievement of final stabilization, g. A site map/construction drawing(s) showing the specific location(s), size(s), and length(s) of each erosion and sediment control practice, h. The dimensions, material specifications, installation details, and operation and maintenance requirements for all erosion and sediment control practices. Include the location and sizing of any temporary sediment basins and structural practices that will be used to divert flows from exposed soils, I. A maintenance inspection schedule for the contractor(s) identified in Part III.A.6. of this permit, to ensure continuous and effective operation of the erosion and sediment control practices. The maintenance inspection 21 (Parc 111 B 2b) b. A site map/construction drawing(s) showing the specific location and size of each post -construction stormwater management practice, c. A Stormwater Modeling and Analysis Report that includes: (i) Map(s) showing pre -development conditions, including watershed/subcatchments boundaries, flow paths/routing, and design points, (ii) Map(s) showing post -development conditions, including watershed/subcatchments boundaries, flow paths/routing, design points and post -construction stormwater management practices, (iii) Results of stormwater modeling (i.e. hydrology and hydraulic analysis) for the required storm events. Include supporting calculations (model runs), methodology, and a summary table that compares pre and post - development runoff rates and volumes for the different storm events, (iv) Summary table, with supporting calculations, which demonstrates that each post -construction stormwater management practice has been designed in conformance with the sizing criteria included in the Design Manual; (v) Identification of any sizing criteria that is not required based on the requirements included in Part I.C. of this permit, and (vi) Identification of any elements of the design that are not in conformance with the performance criteria in the Design Manual. Include the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the Design Manual, d. Soil testing results and locations (test pits, borings); e. Infiltration test results, when required, and f. An operations and maintenance plan that includes inspection and maintenance schedules and actions to ensure continuous and effective operation of each post -construction stormwater management practice. The plan shall identify the entity that will be responsible for the long term operation and maintenance of each practice. (Parc III B.1.1) schedule shall be in accordance with the requirements in the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016, j. A description of the pollution prevention measures that will be used to control litter, construction chemicals and construction debris from becoming a pollutant source in the stormwater discharges, k. A description and location of any stormwater discharges associated with industrial activity other than construction at the site, including, but not limited to, stormwater discharges from asphalt plants and concrete plants located on the construction site, and I. Identification of any elements of the design that are not in conformance with the design criteria in the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016. Include the reason for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. 2. Post -construction stormwater management practice component — The owneror operator of any construction project identified in Table 2 of Appendix B as needing post -construction stormwater management practices shall prepare a SWPPP that includes practices designed in conformance with the applicable sizing criteria in Part I.C.2.a., c. or d. of this permit and the performance criteria in the technical standard, New York State Stormwater Management Design Manual dated January 2015 Where post -construction stormwater management practices are not designed in conformance with the performance criteria in the technical standard, the owneror operator must include in the SWPPP the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. The post -construction stormwater management practice component of the SWPPP shall include the following: a. Identification of all post -construction stormwater management practices to be constructed as part of the project. Include the dimensions, material specifications and installation details for each post -construction stormwater management practice, 22 (Part III.B 3) 3. Enhanced Phosphorus Removal Standards - All construction projects identified in Table 2 of Appendix B that are located in the watersheds identified in Appendix C shall prepare a SWPPP that includes post -construction stormwater management practices designed in conformance with the applicable sizing criteria in Part I.C.2. b., c. or d. of this permit and the performance criteria, Enhanced Phosphorus Removal Standards included in the Design Manual. At a minimum, the post -construction stormwater management practice component of the SWPPP shall include items 2.a - 2.f. above. C. Required SWPPP Components by Project Type Unless otherwise notified by the Department, owners or operators of construction activities identified in Table 1 of Appendix B are required to prepare a SWPPP that only includes erosion and sediment control practices designed in conformance with Part I II. B.1 of this permit. Owners oroperators of the construction activities identified in Table 2 of Appendix B shall prepare a SWPPP thatalso includes post -construction stormwater management practices designed in conformance with Part III.B.2 or 3 of this permit. Part IV. INSPECTION AND MAINTENANCE REQUIREMENTS A. General Construction Site Inspection and Maintenance Requirements 1. The owneror operator must ensure that all erosion and sediment control practices (including pollution prevention measures) and all post -construction stormwater management practices identified in the SWPPP are inspected and maintained in accordance with Part IV.B. and C. of this permit. 2. The terms of this permit shall not be construed to prohibit the State of New York from exercising any authority pursuant to the ECL, common law or federal law, or prohibit New York State from taking any measures, whether civil or criminal, to prevent violations of the laws of the State of New York or protect the public health and safety and/or the environment. B. Contractor Maintenance Inspection Requirements 1. The owneror operator of each construction activity identified in Tables 1 and 2 of Appendix B shall have a trained contractor inspect the erosion and sediment control practices and pollution prevention measures being implemented within the active work area daily to ensure that they are being maintained in effective operating condition at all times. If deficiencies are identified, the contractor shall 23 1 24 begin implementing corrective actions within one business day and shall complete the corrective actions in a reasonable time frame. 2. For construction sites where soil disturbance activities have been temporarily suspended (e.g. winter shutdown) and temporary stabilization measures have been applied to all disturbed areas, the trained contractorcan stop conducting the maintenance inspections. The trained contractorshall begin conducting the maintenance inspections in accordance with Part IV.13.1. of this permit as soon as soil disturbance activities resume. 3. For construction sites where soil disturbance activities have been shutdown with partial project completion, the trained contractorcan stop conducting the maintenance inspections if all areas disturbed as of the project shutdown date have achieved final stabilization and all post -construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational. C. Qualified Inspector Inspection Requirements The owner or operator shall have a qualified inspector conduct site inspections in conformance with the following requirements: [Note: The trained contractor identified in Part III.A.6. and IV.B. of this permit cannot conduct the qualified inspector site inspections unless they meet the qualified inspector qualifications included in Appendix A. In orderto perform these inspections, the trained contractor would have to be a: • licensed Professional Engineer, • Certified Professional in Erosion and Sediment Control (CPESC), • New York State Erosion and Sediment Control Certificate Program holder • Registered Landscape Architect, or • someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity]. 1. A qualified inspector shall conduct site inspections for all construction activities identified in Tables 1 and 2 of Appendix B, with the exception of: a. the construction of a single family residential subdivision with 25% or less impervious coverat total site build -out that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres and is not located (Parc IV Cd d. For construction sites where soil disturbance activities have been shut down with partial project completion, the qualified inspector can stop conducting inspections if all areas disturbed as of the project shutdown date have achieved final stabilization and all post -construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational. The owneror operator shall notify the DOW Water (SPDES) Program contact at the Regional Office (see contact information in Appendix F) or, in areas under the jurisdiction of a regulated, traditional land use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity) in writing prior to the shutdown. If soil disturbance activities are not resumed within 2 years from the date of shutdown, the owner or operator shall have the qualified inspector perform a final inspection and certify that all disturbed areas have achieved final stabilization, and all temporary, structural erosion and sediment control measures have been removed, and that all post -construction stormwater management practices have been constructed in conformance with the SWPPP by signing the "Final Stabilization" and "Post -Construction Stormwater Management Practice" certification statements on the NOT. The owner or operator shall then submit the completed NOT form to the address in Part II.B.1 of this permit. e. For construction sites that directly discharge to one of the 303(d) segments listed in Appendix E or is located in one of the watersheds listed in Appendix C, the qualified inspector shall conduct at least two (2) site inspections every seven (7) calendar days. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. At a minimum, the qualified inspectorshall inspect all erosion and sediment control practices and pollution prevention measures to ensure integrity and effectiveness, all post -construction stormwater management practices under construction to ensure that they are constructed in conformance with the SWPPP, all areas of disturbance that have not achieved final stabilization, all points of discharge to natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction site, and all points of discharge from the construction site. The qualified inspector shall prepare an inspection report subsequent to each and every inspection. At a minimum, the inspection report shall include and/or address the following: (Parc IV C 1 a) in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E, b. the construction of a single family home that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres and is not located in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E, c. construction on agricultural property that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres, and d. construction activities located in the watersheds identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. 2. Unless otherwise notified by the Department, the qualified inspectorshall conduct site inspections in accordance with the following timetable: a. For construction sites where soil disturbance activities are on-going, the qualified inspector shall conduct a site inspection at least once every seven (7) calendar days. b. For construction sites where soil disturbance activities are on-going and the owner or operator has received authorization in accordance with Part II.D.3 to disturb greater than five (5) acres of soil at any one time, the qualified inspectorshall conduct at leasttwo (2) site inspections every seven (7) calendar days. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. c. For construction sites where soil disturbance activities have been temporarily suspended (e.g. winter shutdown) and temporary stabilization measures have been applied to all disturbed areas, the qualified inspector shall conduct a site inspection at least once every thirty (30) calendar days. The owneror operator shall notify the DOW Water (SPDES) Program contact at the Regional Office (see contact information in Appendix F) or, in areas under the jurisdiction of a regulated, traditional land use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity) in writing prior to reducing the frequency of inspections. (Parc IV C4 a) a. Date and time of inspection, b. Name and title of person(s) performing inspection, c. A description of the weather and soil conditions (e.g. dry, wet, saturated) at the time of the inspection, d. A description of the condition of the runoff at all points of discharge from the construction site. This shall include identification of any discharges of sediment from the construction site. Include discharges from conveyance systems (i.e. pipes, culverts, ditches, etc.) and overland flow, e. A description of the condition of all natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction site which receive runoff from disturbed areas. This shall include identification of any discharges of sediment to the surface waterbody, f. Identification of all erosion and sediment control practices and pollution prevention measures that need repair or maintenance, g. Identification of all erosion and sediment control practices and pollution prevention measures that were not installed properly or are not functioning as designed and need to be reinstalled or replaced, h. Description and sketch of areas with active soil disturbance activity, areas that have been disturbed but are inactive at the time of the inspection, and areas that have been stabilized (temporary and/or final) since the last inspection, I. Current phase of construction of all post -construction stormwater management practices and identification of all construction that is not in conformance with the SWPPP and technical standards, j. Corrective action(s) that must be taken to install, repair, replace or maintain erosion and sediment control practices and pollution prevention measures, and to correct deficiencies identified with the construction of the post - construction stormwater management practice(s), k. Identification and status of all corrective actions that were required by previous inspection, and (Parc IV.C41) Digital photographs, with date stamp, that clearly show the condition of all practices that have been identified as needing corrective actions. The qualified inspectorshall attach paper color copies of the digital photographs to the inspection report being maintained onsite within seven (7) calendar days of the date of the inspection. The qualified inspector shall also take digital photographs, with date stamp, that clearly show the condition of the practice(s) after the corrective action has been completed. The qualified inspectorshall attach paper color copies of the digital photographs to the inspection report that documents the completion of the corrective action work within seven (7) calendar days of that inspection. 5. Within one business day of the completion of an inspection, the qualified inspector shall notify the owneror operator and appropriate contractor or subcontractor identified in Part III.A.6. of this permit of any corrective actions that need to be taken. The contractor or subcontractor shall begin implementing the corrective actions within one business day of this notification and shall complete the corrective actions in a reasonable time frame. 6. All inspection reports shall be signed by the qualified inspector. Pursuant to Part II.D.2. of this permit, the inspection reports shall be maintained on site with the SWPPP. Part V. TERMINATION OF PERMIT COVERAGE A. Termination of Permit Coverage An owneror operatorthat is eligible to terminate coverage under this permit must submit a completed NOT form to the address in Part II. B.1 of this permit. The NOT form shall be one which is associated with this permit, signed in accordance with Part VILA of this permit. 2. An owneror operator may terminate coverage when one or more the following conditions have been met: a. Total project completion - All construction activity identified in the SWPPP has been completed, and all areas of disturbance have achieved final stabilization, and all temporary, structural erosion and sediment control measures have been removed, and all post -construction stormwater management practices have been constructed in conformance with the SWPPP and are operational, (Parc VA 5 b) b. an executed maintenance agreement is in place with the municipality that will maintain the post -construction stormwater management practice(s), c. for post -construction stormwater management practices that are privately owned, the owneror operator has a mechanism in place that requires operation and maintenance of the practice(s) in accordance with the operation and maintenance plan, such as a deed covenant in the owneror operator's deed of record, d. for post -construction stormwater management practices that are owned by a public or private institution (e.g. school, university, hospital), government agency or authority, or public utility; the owneror operator has policy and procedures in place that ensures operation and maintenance of the practices in accordance with the operation and maintenance plan. Part VI. REPORTING AND RETENTION RECORDS A. Record Retention The owneror operator shall retain a copy of the NOI, NOI Acknowledgment Letter, SWPPP, MS4 SWPPP Acceptance form and any inspection reports that were prepared in conjunction with this permit for a period of at least five (5) years from the date that the Department receives a complete NOT submitted in accordance with Part V. of this general permit. B. Addresses With the exception of the NOI, NOT, and MS4 SWPPP Acceptance form (which must be submitted to the address referenced in Part II.B.1 of this permit), all written correspondence requested by the Department, including individual permit applications, shall be sent to the address of the appropriate DOW Water (SPDES) Program contact at the Regional Office listed in Appendix F. Part VII. STANDARD PERMIT CONDITIONS A. Dutyto Comply The owner or operator must comply with all conditions of this permit. All contractors and subcontractors associated with the project must comply with the terms of the SWPPP. Any non-compliance with this permit constitutes a violation of the Clean Water b. Planned shutdown with partial project completion - All soil disturbance activities have ceased, and all areas disturbed as of the project shutdown date have achieved final stabilization, and all temporary, structural erosion and sediment control measures have been removed, and all post - construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational, c. A new owner or operator has obtained coverage under this permit in accordance with Part II.F. of this permit. d. The owneror operator obtains coverage under an alternative SPDES general permit or an individual SPDES permit. 3. For construction activities meeting subdivision 2a. or 2b. of this Part, the owner or operator shall have the qualified inspector perform a final site inspection priorto submitting the NOT. The qualified inspectorshall, by signing the "Final Stabilization" and "Post -Construction Stormwater Management Practice certification statements on the NOT, certify that all the requirements in Part V.A.2.a. or b. of this permit have been achieved. 4. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4 and meet subdivision 2a. or 2b. of this Part, the owner or operator shall have the regulated, traditional land use control MS4 sign the "MS4 Acceptance" statement on the NOT in accordance with the requirements in PartVII.H. of this permit. The regulated, traditional land use control MS4 official, by signing this statement, has determined that it is acceptable for the owner or operator to submitthe NOT in accordance with the requirements of this Part. The regulated, traditional land use control MS4 can make this determination by performing a final site inspection themselves or by accepting the qualified inspectors final site inspection certification(s) required in Part V.A.3. of this permit. 5. For construction activities that require post -construction stormwater management practices and meet subdivision 2a. of this Part, the owneror operator must, prior to submitting the NOT, ensure one of the following: a. the post -construction stormwater management practice(s) and any right-of- way(s) needed to maintain such practice(s) have been deeded to the municipality in which the practice(s) is located, (Parc VI IA) Act (CWA) and the ECL and is grounds for an enforcement action against the owneror operator and/or the contractor/subcontractor, permit revocation, suspension or modification, ordenial of a permit renewal application. Upon a finding of significant non- compliance with this permit or the applicable SWPPP, the Department may order an immediate stop to all construction activity at the site until the non-compliance is remedied. The stop work order shall be in writing, shall describe the non-compliance in detail, and shall be sentto the owner or operator. If any human remains or archaeological remains are encountered during excavation, the owner or operator must immediately cease, or cause to cease, all construction activity in the area of the remains and notify the appropriate Regional Water Engineer (RWE). Construction activity shall not resume until written permission to do so has been received from the RWE. B. Continuation of the Expired General Permit This permit expires five (5) years from the effective date. If a new general permit is not issued prior to the expiration of this general permit, an owneror operatorwith coverage under this permit may continue to operate and discharge in accordance with the terms and conditions of this general permit, if it is extended pursuant to the State Administrative Procedure Act and 6 NYCRR Part 621, until a new general permit is issued. C. Enforcement Failure of the owner or operator, its contractors, subcontractors, agents and/or assigns to strictly adhere to any of the permit requirements contained herein shall constitute a violation of this permit. There are substantial criminal, civil, and administrative penalties associated with violating the provisions of this permit. Fines of up to $37,500 per day for each violation and imprisonment for up to fifteen (15) years may be assessed depending upon the nature and degree of the offense. D. Need to Halt or Reduce Activity Not a Defense It shall not be a defense for an owneroroperator in an enforcement action that it would have been necessary to halt or reduce the construction activity in order to maintain compliance with the conditions of this permit. E. Duty to Mitigate The owner or operator and its contractors and subcontractors shall take all reasonable steps to minimize or prevent any discharge in violation of this permit which has a reasonable likelihood of adversely affecting human health orthe environment. F. Dutyto Provide Information The owner or operator shall furnish to the Department, within a reasonable specified time period of a written request, all documentation necessary to demonstrate eligibility and any information to determine compliance with this permit or to determine whether cause exists for modifying or revoking this permit, or suspending or denying coverage under this permit, in accordance with the terms and conditions of this permit. The NOI, SWPPP and inspection reports required by this permit are public documents that the owner or operator must make available for review and copying by any person within five (5) business days of the owner or operator receiving a written request by any such person to review these documents. Copying of documents will be done at the requester's expense. G. Other Information When the owner or operator becomes aware that they failed to submit any relevant facts, or submitted incorrect information in the NOI or in any of the documents required by this permit, or have made substantive revisions to the SWPPP (e.g. the scope of the project changes significantly, the type of post -construction stormwater management practice(s) changes, there is a reduction in the sizing of the post -construction stormwater management practice, or there is an increase in the disturbance area or impervious area), which were not reflected in the original NOI submitted to the Department, they shall promptly submit such facts or information to the Department using the contact information in Part II.A. of this permit. Failure of the owneroroperator to correct or supplement any relevant facts within five (5) business days of becoming aware of the deficiency shall constitute a violation of this permit. H. Signatory Requirements 1. All NOls and NOTs shall be signed as follows: a. For a corporation these forms shall be signed by a responsible corporate officer. For the purpose of this section, a responsible corporate officer means: 33 (Parc VII H 2e) superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position) and, c. The written authorization shall include the name, title and signature of the authorized representative and be attached to the SWPPP. 3. All inspection reports shall be signed by the qualified inspectorthat performs the inspection. 4. The MS4 SWPPP Acceptance form shall be signed by the principal executive officer or ranking elected official from the regulated, traditional land use control MS4, or by a duly authorized representative of that person. It shall constitute a permitviolation if an incorrect and/or improper signatory authorizes any required forms, SWPPP and/or inspection reports. I. Property Rights The issuance of this permit does not convey any property rights of any sort, nor any exclusive privileges, nor does itauthorize any injuryto private property norany invasion of personal rights, nor any infringement of Federal, State or local laws or regulations. Owners or operators must obtain any applicable conveyances, easements, licenses and/or access to real property prior to commencing construction activity. J. Severability The provisions of this permit are severable, and if any provision of this permit, or the application of any provision of this permit to any circumstance, is held invalid, the application of such provision to other circumstances, and the remainder of this permit shall not be affected thereby. K. Requirement to Obtain Coverage Under an Alternative Permit 1. The Department may require any owner or operator authorized by this permitto apply for and/or obtain either an individual SPDES permit or another SPDES general permit. When the Department requires any discharger authorized by a general permit to apply for an individual SPDES permit, it shall notify the discharger in writing that a permit application is required. This notice shall (ParcVOH1 a) (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision-making functions for the corporation, or (ii) the manager of one or more manufacturing, production or operating facilities, provided the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations, the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements, and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures, b. For a partnership or sole proprietorship these forms shall be signed by a general partner or the proprietor, respectively, or c. For a municipality, State, Federal, or other public agency these forms shall be signed by either a principal executive officer or ranking elected official. For purposes of this section, a principal executive officer of a Federal agency includes: (i) the chief executive officer of the agency, or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g., Regional Administrators of EPA). 2. The SWPPP and other information requested by the Department shall be signed by a person described in Part VII.H.1. of this permit or by a duly authorized representative of that person. A person is a duly authorized representative only if: a. The authorization is made in writing by a person described in Part VII.H.1. of this permit, b. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator of a well or a well field, 34 (Part VII K 1) include a brief statement of the reasons for this decision, an application form, a statement setting a time frame for the owner or operator to file the application for an individual SPDES permit, and a deadline, not sooner than 180 days from owner or operator receipt of the notification letter, whereby the authorization to discharge under this general permit shall be terminated. Applications must be submitted to the appropriate Permit Administrator at the Regional Office. The Department may grant additional time upon demonstration, to the satisfaction of the Department, that additional time to apply for an alternative authorization is necessary or where the Department has not provided a permit determination in accordance with Part 621 of this Title. 2. When an individual SPDES permit is issued to a discharger authorized to discharge under a general SPDES permit for the same discharge(s), the general permit authorization for outfalls authorized under the individual SPDES permit is automatically terminated on the effective date of the individual permit unless termination is earlier in accordance with 6 NYCRR Part 750. L. Proper Operation and Maintenance The owner or operator shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the owner or operator to achieve compliance with the conditions of this permit and with the requirements of the SWPPP. M. Inspection and Entry The owner or operator shall allow an authorized representative of the Department, EPA, applicable county health department, or, in the case of a construction site which discharges through an MS4, an authorized representative of the MS4 receiving the discharge, upon the presentation of credentials and other documents as may be required by law, to: 1. Enter upon the owner's or operator's premises where a regulated facility or activity is located or conducted or where records must be kept under the conditions of this permit, 2. Have access to and copy at reasonable times, any records that must be kept under the conditions of this permit, and 35 1 36 (Part VI I 3) 3. Inspect at reasonable times any facilities or equipment (including monitoring and control equipment), practices or operations regulated or required by this permit. 4. Sample or monitor at reasonable times, for purposes of assuring permit compliance or as otherwise authorized by the Act or ECL, any substances or parameters at any location. N. Permit Actions This permit may, at any time, be modified, suspended, revoked, or renewed by the Department in accordance with 6 NYCRR Part 621. The filing of a request by the owner or operator for a permit modification, revocation and reissuance, termination, a notification of planned changes or anticipated noncompliance does not limit, diminish and/or stay compliance with any terms of this permit. O. Definitions Definitions of key terms are included in Appendix A of this permit. P. Re -Opener Clause 1. If there is evidence indicating potential or realized impacts on water quality due to any stormwater discharge associated with construction activity covered by this permit, the owner or operator of such discharge may be required to obtain an individual permit or alternative general permit in accordance with Part VII.K. of this permit or the permit may be modified to include different limitations and/or requirements. 2. Any Department initiated permit modification, suspension or revocation will be conducted in accordance with 6 NYCRR Part 621, 6 NYCRR 750-1.18, and 6 NYCRR 750-1.20. Q. Penalties for Falsification of Forms and Reports In accordance with 6NYCRR Part 750-2.4 and 750-2.5, any person who knowingly makes any false material statement, representation, or certification in any application, record, report or other document filed or required to be maintained under this permit, including reports of compliance or noncompliance shall, upon conviction, be punished in accordance with ECL §71-1933 and or Articles 175 and 210 of the New York State Penal Law. APPENDIX A—Acronyms and Definitions Acronyms APO — Agency Preservation Officer BMP — Best Management Practice CPESC — Certified Professional in Erosion and Sediment Control Cpv— Channel Protection Volume CWA — Clean Water Act (or the Federal Water Pollution Control Act, 33 U.S.C. §1251 seq) DOW — Division of Water EAF — Environmental Assessment Form ECL - Environmental Conservation Law EPA — U. S. Environmental Protection Agency HSG — Hydrologic Soil Group MS4 — Municipal Separate Storm Sewer System NOI — Notice of Intent NOT — Notice of Termination NPDES — National Pollutant Discharge Elimination System OPRHP — Office of Parks, Recreation and Historic Places Qf— Extreme Flood Qp — Overbank Flood RRv— Runoff Reduction Volume RWE — Regional Water Engineer SEAR — State Environmental Quality Review SEQRA - State Environmental Quality Review Act SHPA— State Historic Preservation Act SPDES— State Pollutant Discharge Elimination System SWPPP — Stormwater Pollution Prevention Plan TMDL—Total Maximum Daily Load UPA — Uniform Procedures Act USDA — United States Department of Agriculture WQv— Water Quality Volume R. Other Permits Nothing in this permit relieves the owner or operator from a requirement to obtain any other permits required by law. Definitions All definitions in this section are solely for the purposes of this permit. Agricultural Building — a structure designed and constructed to house farm implements, hay, grain, poultry, livestock or other horticultural products; excluding any structure designed, constructed or used, in whole or in part, for human habitation, as a place of employmentwhere agricultural products are processed, treated or packaged, or as a place used by the public. Agricultural Property—means the land for construction of a barn, agricultural building, silo, stockyard, pen or other structural practices identified in Table II in the "Agricultural Management Practices Catalog for Nonpoint Source Pollution in New York State" prepared by the Department in cooperation with agencies of New York Nonpoint Source Coordinating Committee (dated June 2007). Alter Hydrology from Pre to Post -Development Conditions - means the post - development peak flow rate(s) has increased by more than 5% of the pre -developed condition for the design storm of interest (e.g. 10 yr and 100 yr). Combined Sewer - means a sewer that is designed to collect and convey both "sewage" and "stormwater". Commence (Commencement of) Construction Activities - means the initial disturbance of soils associated with clearing, grading or excavation activities; or other construction related activities that disturb or expose soils such as demolition, stockpiling of fill material, and the initial installation of erosion and sediment control practices required in the SWPPP. See definition for "Construction Activity(ies)" also. Construction Activity(les) - means any clearing, grading, excavation, filling, demolition or stockpiling activities that result in soil disturbance. Clearing activities can include, but are not limited to, logging equipment operation, the cutting and skidding of trees, stump removal and/or brush root removal_ Construction activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility. Construction Site — means the land area where construction activity(ies) will occur. See definition for "Commence (Commencement on Construction Activities" and "Larger Common Plan of Development or Sale" also_ Dewatering — means the act of draining rainwater and/or groundwater from building foundations, vaults or excavations/trenches. Direct Discharge (to a specific surface waterbody) - means that runoff flows from a construction site by overland flow and the first point of discharge is the specific surface waterbody, or runoff flows from a construction site to a separate storm sewer system and the first point of discharge from the separate storm sewer system is the specific surface waterbody. Discharge(s) - means any addition of any pollutant to waters of the State through an outlet or point source. Embankment —means an earthen or rock slope that supports a road/highway Endangered or Threatened Species — see 6 NYCRR Part 182 of the Department's rules and regulations for definition of terms and requirements. Environmental Conservation Law (ECL) - means chapter 43-B of the Consolidated Laws of the State of New York, entitled the Environmental Conservation Law. Equivalent (Equivalence)— means that the practice or measure meets all the performance, longevity, maintenance, and safety objectives of the technical standard and will provide an equal or greater degree of water quality protection. Final Stabilization - means that all soil disturbance activities have ceased and a uniform, perennial vegetative cover with a density of eighty (80) percent over the entire pervious surface has been established, or other equivalent stabilization measures, such as permanent landscape mulches, rock rip -rap or washed/crushed stone have been applied on all disturbed areas that are not covered by permanent structures, concrete or pavement. General SPDES permit - means a SPDES permit issued pursuant to 6 NYCRR Part 750-1.21 and Section 70-0117 of the ECL authorizing a category of discharges. Groundwater(s) - means waters in the saturated zone. The saturated zone is a subsurface zone in which all the interstices are filled with water under pressure greater than that of the atmosphere. Although the zone may contain gas-filled interstices or interstices filled with fluids other than water, it is still considered saturated. Historic Property — means any building, structure, site, object or district that is listed on the State or National Registers of Historic Places or is determined to be eligible for listing on the State or National Registers of Historic Places. Impervious Area (Cover) - means all impermeable surfaces that cannot effectively infiltrate rainfall. This includes paved, concrete and gravel surfaces (i.e. parking lots, driveways, roads, runways and sidewalks); building rooftops and miscellaneous impermeable structures such as patios, pools, and sheds. Infeasible — means not technologically possible, or not economically practicable and achievable in light of best industry practices. New York State Erosion and Sediment Control Certificate Program — a certificate program that establishes and maintains a process to identify and recognize individuals who are capable of developing, designing, inspecting and maintaining erosion and sediment control plans on projects that disturb soils in New York State. The certificate program is administered by the New York State Conservation District Employees Association. NOI Acknowledgment Letter - means the letter that the Department sends to an owner or operator to acknowledge the Department's receipt and acceptance of a complete Notice of Intent. This letter documents the owner's or operator's authorization to discharge in accordance with the general permit for stormwater discharges from construction activity. Nonpoint Source - means any source of water pollution or pollutants which is not a discrete conveyance or point source permitted pursuant to Title 7 or 8 of Article 17 of the Environmental Conservation Law (see ECL Section 17-1403). Overbank —means flow events that exceed the capacity of the stream channel and spill out into the adjacent floodplain. Owner or Operator - means the person, persons or legal entity which owns or leases the property on which the construction activity is occurring; an entity that has operational control over the construction plans and specifications, including the ability to make modifications to the plans and specifications, and/or an entity that has day-to-day operational control of those activities at a project that are necessary to ensure compliance with the permit conditions. Performance Criteria — means the design criteria listed under the "Required Elements" sections in Chapters 5, 6 and 10 of the technical standard, New York State Stormwater Management Design Manual, dated January 2015. It does not include the Sizing Criteria (i.e. WQv, RRv, Cpv, Qp and Qf ) in Part I.C.2. of the permit. Point Source - means any discernible, confined and discrete conveyance, including but not limited to any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding operation, vessel or other floating craft, or landfill leachate collection system from which pollutants are or may be discharged. Pollutant - means dredged spoil, filter backwash, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand and industrial, municipal, agricultural waste and ballast discharged into water, which may cause or might reasonably be expected to cause pollution of the waters of the state in contravention of the standards or guidance values adopted as provided in 6 NYCRR Parts 700 et seq . Larger Common Plan of Development or Sale - means a contiguous area where multiple separate and distinct construction activities are occurring, or will occur, under one plan. The term "plan" in "larger common plan of development or sale" is broadly defined as any announcement or piece of documentation (including a sign, public notice or hearing, marketing plan, advertisement, drawing, permit application, State Environmental Quality Review Act (SEQRA) environmental assessment form or other documents, zoning request, computer design, etc.) or physical demarcation (including boundary signs, lot stakes, surveyor markings, etc.) indicating that construction activities may occur on a specific plot. For discrete construction projects that are located within a larger common plan of development or sale that are at least 1/4 mile apart, each project can be treated as a separate plan of development or sale provided any interconnecting road, pipeline or utility project that is part of the same "common plan" is not concurrently being disturbed. Minimize — means reduce and/or eliminate to the extent achievable using control measures (including best management practices) that are technologically available and economically practicable and achievable in light of best industry practices. Municipal Separate Storm Sewer (MS4) - a conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains): (i) Owned or operated by a State, city, town, borough, county, parish, district, association, or other public body (created by or pursuant to State law) having jurisdiction over disposal of sewage, industrial wastes, stormwater, or other wastes, including special districts under State law such as a sewer district, flood control district or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, or a designated and approved management agency under section 208 of the CWA that discharges to surface waters of the State - (i i) tate;(ii) Designed or used for collecting or conveying stormwater; (iii) Which is nota combined sewer; and (iv) Which is not part of a Publicly Owned Treatment Works (POTW) as defined at 40 CFR 122.2. National Pollutant Discharge Elimination System (NPDES) - means the national system for the issuance of wastewater and stormwater permits under the Federal Water Pollution Control Act (Clean Water Act). Natural Buffer —means an undisturbed area with natural cover running along a surface water (e.g. wetland, stream, river, lake, etc.). New Development — means any land disturbance that does not meet the definition of Redevelopment Activity included in this appendix. 11111111111111110 Qualified Inspector - means a person that is knowledgeable in the principles and practices of erosion and sediment control, such as a licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, New York State Erosion and Sediment Control Certificate Program holder or other Department endorsed individual(s). It can also mean someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided that person has training in the principles and practices of erosion and sediment control. Training in the principles and practices of erosion and sediment control means that the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect has received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect shall receive four (4) hours of training every three (3) years. It can also mean a person that meets the Qualified Professional qualifications in addition to the Qualified Inspector qualifications. Note: Inspections of any post -construction stormwater management practices that include structural components, such as a dam for an impoundment, shall be performed by a licensed Professional Engineer. Qualified Professional - means a person that is knowledgeable in the principles and practices of stormwater management and treatment, such as a licensed Professional Engineer, Registered Landscape Architect or other Department endorsed individual(s) Individuals preparing SWPPPs that require the post -construction stormwater management practice component must have an understanding of the principles of hydrology, water quality management practice design, water quantity control design, and, in many cases, the principles of hydraulics. All components of the SWPPP that involve the practice of engineering, as defined by the NYS Education Law (see Article 145), shall be prepared by, or under the direct supervision of, a professional engineer licensed to practice in the State of New York. Redevelopment Activity(les) — means the disturbance and reconstruction of existing impervious area, including impervious areas that were removed from a project site within five (5) years of preliminary project plan submission to the local government (i.e. site plan, subdivision, etc.). Regulated, Traditional Land Use Control MS4 - means a city, town or village with land use control authority that is authorized to discharge under New York State DEC's SPDES General Permit For Stormwater Discharges from Municipal Separate Stormwater Sewer Systems (MS4s) or the City of New York's Individual SPDES Permit for their Municipal Separate Storm Sewer Systems (NY -0287890). Routine Maintenance Activity - means construction activitythat is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility, including, but not limited to: • Re -grading of gravel roads or parking lots, • Cleaning and shaping of existing roadside ditches and culverts that maintains the approximate original line and grade, and hydraulic capacity of the ditch, • Cleaning and shaping of existing roadside ditches that does not maintain the approximate original grade, hydraulic capacity and purpose of the ditch if the changes to the line and grade, hydraulic capacity or purpose of the ditch are installed to improve water quality and quantity controls (e.g. installing grass lined ditch), • Placement of aggregate shoulder backing that stabilizes the transition between the road shoulder and the ditch or embankment, • Full depth milling and filling of existing asphalt pavements, replacement of concrete pavement slabs, and similar work that does not expose soil or disturb the bottom six (6) inches of subbase material, • Long-term use of equipment storage areas at or near highway maintenance facilities, • Removal of sediment from the edge of the highway to restore a previously existing sheet -flow drainage connection from the highway surface to the highway ditch or embankment, • Existing use of Canal Corp owned upland disposal sites for the canal, and • Replacement of curbs, gutters, sidewalks and guide rail posts. Site limitations — means site conditions that prevent the use of an infiltration technique and or infiltration of the total WQv. Typical site limitations include: seasonal high groundwater, shallow depth to bedrock, and soils with an infiltration rate less than 0.5 inches/hour. The existence of site limitations shall be confirmed and documented using actual field testing (i.e. test pits, soil borings, and infiltration test) or using information from the most current United States Department of Agriculture (USDA) Soil Survey for the County where the project is located. Sizing Criteria — means the criteria included in Part I.C.2 of the permit that are used to size post -construction stormwater management control practices. The criteria include, Water Quality Volume (WQv), Runoff Reduction Volume (RRv), Channel Protection Volume (Cpv), Overbank Flood (Qp), and Extreme Flood (Qf). State Pollutant Discharge Elimination System (SPDES) - means the system established pursuant to Article 17 of the ECL and 6 NYCRR Part 750 for issuance of permits authorizing discharges to the waters of the state. Appendix A training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the trained contractor shall receive four (4) hours of training every three (3) years. It can also mean an employee from the contracting (construction) company, identified in Part I I I.A.6., that meets the qualified inspector qualifications (e.g. licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, New York State Erosion and Sediment Control Certificate Program holder, or someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity). The trained contractor is responsible for the day to day implementation of the SWPPP. Uniform Procedures Act (UPA) Permit - means a permit required under 6 NYCRR Part 621 of the Environmental Conservation Law (ECL), Article 70. Water Quality Standard - means such measures of purity or quality for any waters in relation to their reasonable and necessary use as promulgated in 6 NYCRR Part 700 et seq. Steep Slope — means land area designated on the current United States Department of Agriculture ("USDA") Soil Survey as Soil Slope Phase "D", (provided the map unit name is inclusive of slopes greater than 25%) , or Soil Slope Phase E or F, (regardless of the map unit name), or a combination of the three designations. Streambank — as used in this permit, means the terrain alongside the bed of a creek or stream. The bank consists ofthe sides ofthe channel, between which the flow is confined. Stormwater Pollution Prevention Plan (SWPPP) — means a project specific report, including construction drawings, that among other things: describes the construction activity(ies), identifies the potential sources of pollution at the construction site, describes and shows the stormwater controls that will be used to control the pollutants (i.e. erosion and sediment controls, for many projects, includes post -construction stormwater management controls), and identifies procedures the owneror operatorwill implement to comply with the terms and conditions of the permit. See Part III of the permit for a complete description of the information that must be included in the SWPPP. Surface Waters of the State - shall be construed to include lakes, bays, sounds, ponds, impounding reservoirs, springs, rivers, streams, creeks, estuaries, marshes, inlets, canals, the Atlantic ocean within the territorial seas of the state of New York and all other bodies of surface water, natural or artificial, inland or coastal, fresh or salt, public or private (except those private waters that do not combine or effect a junction with natural surface waters), which are wholly or partially within or bordering the state or within its jurisdiction. Waters of the state are further defined in 6 NYCRR Parts 800 to 941. Temporarily Ceased — means that an existing disturbed area will not be disturbed again within 14 calendar days of the previous soil disturbance. Temporary Stabilization - means that exposed soil has been covered with material(s) as set forth in the technical standard, New York Standards and Specifications for Erosion and Sediment Control, to prevent the exposed soil from eroding. The materials can include, but are not limited to, mulch, seed and mulch, and erosion control mats (e.g. jute twisted yarn, excelsior wood fiber mats). Total Maximum Daily Loads (TMDLs) - A TMDL is the sum of the allowable loads of a single pollutant from all contributing point and nonpoint sources. It is a calculation of the maximum amount of a pollutant that a waterbody can receive on a daily basis and still meet water quality standards, and an allocation of that amount to the pollutant's sources. A TMDL stipulates wasteload allocations (WLAs) for point source discharges, load allocations (LAs) for nonpoint sources, and a margin of safety (MOS). Trained Contractor - means an employee from the contracting (construction) company, identified in Part III.A.6., that has received four (4) hours of Department endorsed APPENDIX B — Required SWPPP Components by Project Type Table 1 Construction Activities that Require the Preparation of a SWPPP That Only Includes Erosion and Sediment Controls The following construction activities that involve soil disturbances of one (1) or more acres of land, but less than five (5) acres: • Single family home not located in one of the watersheds listed in Appendix C or not directly discharging to one ofthe 303(d) segments listed in Appendix E • Single family residential subdivisions with 25% or less impervious cover at total site build -out and not located in one ofthe watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E • Construction of a barn or other agricultural building, silo, stock yard or pen. The following construction activities that involve soil disturbances between five thousand (5000) square feet and one (1) acre of land: All construction activities located in the watersheds identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. The following construction activities that involve soil disturbances of one (1) or more acres of land: • Installation of underground, linear utilities; such as gas lines, fiber-optic cable, cable N, electric, telephone, sewer mains, and water mains • Environmental enhancement projects, such as wetland mitigation projects, stormwater retrofits and stream restoration projects • Pond construction • Linear bike paths running through areas with vegetative cover, including bike paths surfaced with an impervious cover • Cross-country ski trails and walking/hiking trails • Sidewalk, bike path orwalking path projects, surfaced wth an impervious cover, that are not part of residential, commercial or institutional development; • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that include incidental shoulder or curb work along an existing highway to support construction ofthe sidewalk, bike path orwalking path. • Slope stabilization projects • Slope flattening that changes the grade ofthe site, but does not significantly change the runoff characteristics millIIIIIIIIIIng Table 1 (Continued) CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP The following construction activities that involve soil disturbances of one (1) or more acres of land: • Spoil areas that will be covered with vegetation • Vegetated open space projects (i.e. recreational parks, lawns, meadows, fields, downhill ski trails) excluding projects that atter hydrology from pre to post development conditions, • Athletic fields (natural grass) that do not include the construction or reconstruction of impervious area and do not alter hydrology from pre to post development conditions • Demolition project where vegetation will be established, and no redevelopment is planned • Overhead electric transmission line project that does not include the construction of permanent access roads or parking areas surfaced with impervious cover • Structural practices as identified in Table II in the "Agricultural Management Practices Catalog for Nonpoint Source Pollution in New York State', excluding projects that involve soil disturbances of greater than five acres and construction activities that include the construction or reconstruction of impervious area • Temporary access roads, median crossovers, detour roads, lanes, or other temporary impervious areas that will be restored to pre -construction conditions once the construction activity is complete Appendix e Table 2 (Continued) CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT INCLUDES POST -CONSTRUCTION STORMWATER MANAGENENT PRACTICES The following construction activities that involve soil disturbances of one (1) or more acres of land: • Parking lot construction or reconstruction, including parking lots constructed as part ofthe construction activities listed in Table 1 • Athletic fields (natural grass) that include the construction or reconstruction of impervious area (>5% of disturbed area) or alter the hydrology from pre to post development conditions • Athletic fields with artificial turf • Permanent access roads, parking areas, substations, compressor stations and well drilling pads, surfaced with impervious cover, and constructed as part of an over -head electric transmission line project, wind -power project, cell tower project, oil or gas well drilling project, sewer or water main project or other linear utility project • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that are part of a residential, commercial or institutional development • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that are part of a highway construction or reconstruction project • All other construction activities that include the construction or reconstruction of impervious area or alterthe hydrology from pre to post development conditions, and are not listed in Table 1 Table 2 CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT INCLUDES POST -CONSTRUCTION STORMWATER MANAGEMENT PRACTICES The following construction activities that involve soil disturbances of one (1) or more acres of land: • Single family home located in one ofthe watersheds listed in Appendix C or directly discharging to one ofthe 303(d) segments listed in Appendix E • Single family home that disturbs five (5) or more acres of land • Single family residential subdivisions located in one ofthe watersheds listed in Appendix C or directly discharging to one ofthe 303(d) segments listed in Appendix E • Single family residential subdivisions that involve soil disturbances of between one (1) and five (5) acres of land with greater than 25% impervious cover at total site build -out • Single family residential subdivisions that involve soil disturbances offve (5) or more acres of land, and single family residential subdivisions that involve soil disturbances of less than five (5) acres that are part of a larger common plan of development or sale that will ultimately disturb five or more acres of land • Multi -family residential developments; includes duplexes, townhomes, condominiums, senior housing complexes, apartment complexes, and mobile home parks Airports • Amusement parks • Breweries, cideries, and wineries, including establishments constructed on agricultural land • Campgrounds • Cemeteries that include the construction or reconstruction of impervious area (>5% of disturbed area) or alter the hydrology from pre to post development conditions • Commercial developments • Churches and other places of worship • Construction of a barn or other agricultural building (e.g. silo) and structuml practices as identified in Table II in the "Agricultural Management Practices Catalog for Nonpoint Source Pollution in New York State" that include the construction or reconstruction of impervious area, excluding projects that involve soil disturbances of less than five acres. • Golfcourses • Institutional development; includes hospitals, prisons, schools and colleges • Industrial facilities; includes industrial parks Landfills • Municipal facilities; includes highway garages, transfer stations, office buildings, POTVV's, water treatment plants, and water storage tanks • Office complexes • Playgrounds that include the construction or reconstruction of impervious area • Sports complexes • Racetracks; includes racetracks with earthen (dirt) surface • Road construction or reconstruction, including roads constructed as part ofthe construction activities listed in Table 1 APPENDIX C —Watersheds Requiring Enhanced Phosphorus Removal Watersheds where owners or operators of construction activities identified in Table 2 of Appendix B must prepare a SWPPP that includes post -construction stormwater management practices designed in conformance with the Enhanced Phosphorus Removal Standards included in the technical standard, New York State Stormwater Management Design Manual ("Design Manual"). • Entire New York City Watershed located east of the Hudson River - Figure 1 • Onondaga Lake Watershed - Figure 2 • Greenwood Lake Watershed -Figure 3 • Oscawana Lake Watershed — Figure 4 • Kinderhook Lake Watershed — Figure 5 Figure 1 -New York City Watershed East of the Hudson EEKMAN EAST FSHKILL -' r PA W LI NG ATT£RSON KENT ,rn�I 11' - SOUTHEAST PUT AM VALLE {y CARMEL I SRER N RTH SALEM .. .., 90MSRS RI THi Appendix C ' M.V LEASANT HA SON FOO Watershed 53 Appa,di;: C Figure 3 - Greenwood Lake Watershed - WARWICK -� i� GREENWOOD LAKE Lam_, Phosphorus Walwood Appendix C Figure 2 -Onondaga Lake Watershed Figure 4 - Oscawana Lake Watershed PHILIPSTOVW 54 1 1 PUTNAM VALLEY r� AWANALAKE F �r 9 = Phosphorus Vtl"ed 55 56 KENT Appa,di;: C Figure 5 - Kinderhook Lake Watershed Appendix C APPENDIX D – Watersheds with Lower Disturbance Threshold I T, .Pa- orC.w 0_ dart' for new Ywl sb— n 1 4w. O KnnerMook Lehewatwansd � i 57 APPENDIX E – 303(d) Segments Impaired by Construction Related Pollutant(s) List of 303(d) segments impaired by pollutants related to construction activity (e.g. silt, sediment or nutrients). The list was developed using "The Final New York State 2016 Section 303(d) List of Impaired Waters Requiring a TMDL/Other Strategy' dated November 2016. Owners or operators of single family home and single family residential subdivisions with 25% or less total impervious cover at total site build -out that involve soil disturbances of one or more acres of land, but less than 5 acres, and directly discharge to one of the listed segments below shall prepare a SWPPP that includes post -construction stormwater management practices designed in conformance with the New York State Stormwater Management Design Manual ("Design Manual"), dated January 2015. COUNTY WATERBODY POLLUTANT Albany Ann Lee (Shakers) Pond, Stump Pond Nutrients Albany Basic Creek Reservoir Nutrients Allegany Amity Lake, Saunders Pond Nutrients Bronx Long Island Sound, Bronx Nutrients Bronx Van Cortlandt Lake Nutrients Broome Fly Pond, Deer Lake, Sky Lake Nutrients Broome Minor Tribs to Lower Susquehanna(north) Nutrients Broome Whitney Point Lake/Reseryo Nutrients Cattaraugus Allegheny River/Reservoir Nutrients Cattaraugus Beaver (Alma) Lake Nutrients Cattaraugus Case Lake Nutrients Cattaraugus Linlyco/Club Pond Nutrients Cayuga Duck Lake Nutrients Cayuga Little Sodus Bay Nutrients Chautauqua Bear Lake Nutrients Chautauqua Chadakoin River and tribs Nutrients Chautauqua Chautauqua Lake, North Nutrients Chautauqua Chautauqua Lake, South Nutrients Chautauqua Findley Lake Nutrients Chautauqua Hulburt/Clymer Pond Nutrients Clinton Great Chazy River, Lower, Main Stem Silt/Sediment Clinton Lake Champlain, Main Lake, Middle Nutrients Clinton Lake Champlain, Main Lake, North Nutrients Columbia Kinderhook Lake Nutrients Columbia Robinson Pond Nutrients Cortland Dean Pond Nutrients Watersheds where owners or operators of construction activities that involve soil disturbances between five thousand (5000) square feet and one (1) acre of land must obtain coverage under this permit. Entire New York City Watershed that is located east of the Hudson River - See Figure 1 in Appendix C 58 303(d) Segments Impaired by Construction Related Pollutant(s) Dutch— Fall Kill and tribs Nutrients Dutchess Hillside Lake Nutrients Dutchess Wappingers Lake Nutrients Dutchess Wappingers Lake Silt/Sediment Erie Beeman Creek and tribs Nutrients Erie Ellicott Creek, Lower, and tribs Silt/Sediment Erie Ellicott Creek, Lower, and tribs Nutrients Erie Green Lake Nutrients Erie Little Sister Creek, Lower, and tribs Nutrients Erie Murder Creek, Lower, and tribs Nutrients Erie Rush Creek and tribs Nutrients Erie Scajaquada Creek, Lower, and tribs Nutrients Erie Scajaquada Creek, Middle, and tribs Nutrients Erie Scajaquada Creek, Upper, and tribs Nutrients Erie South Branch Smoke Cr, Lower, and tribs Silt/Sediment Erie South Branch Smoke Cr, Lower, and tribs Nutrients Essex Lake Champlain, Main Lake, South Nutrients Essex Lake Champlain, South Lake Nutrients Essex Willsboro Bay Nutrients Genesee Bigelow Creek and tribs Nutrients Genesee Black Creek, Middle, and minor tribs Nutrients Genesee Black Creek, Upper, and minor tribs Nutrients Genesee Bowen Brook and tribs Nutrients Genesee LeRoy Reservoir Nutrients Genesee Oak Orchard Cr, Upper, and tribs Nutrients Genesee Tonawanda Creek, Middle, Main Stem Nutrients Greene Schoharie Reservoir Silt/Sediment Greene Sleepy Hollow Lake Silt/Sediment Herkimer Steele Creek tribs Silt/Sediment Herkimer Steele Creek tribs Nutrients Jefferson Moon Lake Nutrients Kings Hendrix Creek Nutrients Kings Prospect Park Lake Nutrients Lewis Mill Creek/South Branch, and tribs Nutrients Livingston Christie Creek and tribs Nutrients Livingston Conesus Lake Nutrients Livingston Mill Creek and mi nor tribs Silt/Sediment Monroe Black Creek, Lower, and minor tribs Nutrients Monroe Buck Pond Nutrients Monroe Cranberry Pond Nutrients 59 60 303(d) Segments Impaired by Construction Related Pollutant(s) 303(d) Segments Impaired by Construction Related Pollutant(s) Monroe I Lake Ontario Shoreline. Western I Nutrients Monroe Long Pond Nutrients Monroe Mill Creek and tribs Nutrients Monroe Mill Creek/Blue Pond Outlet and tribs Nutrients Monroe Minor Tribs to lrondequoit Bay Nutrients Monroe Rochester Embayment - East Nutrients Monroe Rochester Embayment - West Nutrients Monroe Shipbuilders Creek and tribs Nutrients Monroe Thomas Creek/White Brook and tribs Nutrients Nassau Beaver Lake Nutrients Nassau Camaans Pond Nutrients Nassau East Meadow Brook, Upper, and tribs Silt/Sediment Nassau East Rockaway Channel Nutrients Nassau Grant Park Pond Nutrients Nassau Hempstead Bay Nutrients Nassau Hempstead Lake Nutrients Nassau Hewlett Bay Nutrients Nassau Hog Island Channel Nutrients Nassau Long Island Sound, Nassau County Waters Nutrients Nassau Massapequa Creek and tribs Nutrients Nassau Milburn/Parsonage Creeks, Upp, and tribs Nutrients Nassau Reynolds Channel, west Nutrients Nassau Tidal Tribs to Hempstead Bay Nutrients Nassau Tribs (fresh) to East Bay Nutrients Nassau Tribs (fresh) to East Bay Silt/Sediment Nassau Tribs to Smith/Halls Ponds Nutrients Nassau Woodmere Channel Nutrients New York Harlem Meer Nutrients New York The Lake in Central Park Nutrients Niagara Bergholtz Creek and tribs Nutrients Niagara Hyde Park Lake Nutrients Niagara Lake Ontario Shoreline, Western Nutrients Niagara Lake Ontario Shoreline, Western Nutrients Oneida Ballou, Nail Creeks andtribs Nutrients Onondaga Harbor Brook, Lower, and tribs Nutrients Onondaga Ley Creek and tribs Nutrients Onondaga Minor Tribs to Onondaga LakeNutrients Nutrients Onondaga Ninemile Creek, Lower, and tribs Nutrients Onondaga Onondaga Creek, Lower, and tribs Nutrients Onondaga Onondaga Creek, Middle, and tribs Nutrients 303(d) Segments Impaired by Construction Related Pollutant(s) Schenectady I Collins Lake I Nutrients Schenectady Duane Lake Nutrients Schenectady Mariaville Lake Nutrients Schoharie Engleville Pond Nutrients Schoharie Summit Lake Nutrients Seneca Reeder Creek and tribs Nutrients St.Lawrence Black Lake Outlet/Black Lake Nutrients St.Lawrence Fish Creek and minor tribs Nutrients Steuben Smith Pond Nutrients Suffolk Agawam Lake Nutrients Suffolk Big/Little Fresh Ponds Nutrients Suffolk Canaan Lake Silt/Sediment Suffolk Canaan Lake Nutrients Suffolk Flanders Bay, West/Lower Sawmill Creek Nutrients Suffolk Fresh Pond Nutrients Suffolk Great South Bay, East Nutrients Suffolk Great South Bay, Middle Nutrients Suffolk Great South Bay, West Nutrients Suffolk Lake Ronkonkoma Nutrients Suffolk Long Island Sound, Suffolk County, West Nutrients Suffolk Mattituck(Marratooka) Pond Nutrients Suffolk Meetinghouse/Terrys Creeks and tribs Nutrients Suffolk Mill and Seven Ponds Nutrients Suffolk Millers Pond Nutrients Suffolk Moriches Bay, East Nutrients Suffolk Moriches Bay, West Nutrients Suffolk Peconic River, Lower, and tidal tribs Nutrients Suffolk Quantuck Bay Nutrients Suffolk Shinnecock Bay and Inlet Nutrients Suffolk Tidal tribs to West Moriches Bay Nutrients Sullivan Bodine, Montgomery Lakes Nutrients Sullivan Davies Lake Nutrients Sullivan Evens Lake Nutrients Sullivan Pleasure Lake Nutrients Tompkins Cayuga Lake, Southern End Nutrients Tompkins Cayuga Lake, Southern End Silt/Sediment Tompkins Owasco Inlet, Upper, and tribs Nutrients Ulster Ashokan Reservoir Silt/Sediment Ulster Esopus Creek, Upper, and minortribsSilt/Sediment Nutrients Warren Hague Brook and tribs Silt/Sediment Onondaga Onondaga Lake, northern end Nutrients Onondaga Onondaga Lake, southern end Nutrients Ontario Great Brook and minor tribs Silt/Sediment Ontario Great Brook and minor tribs Nutrients Ontario Hemlock Lake Outlet and minor tribs Nutrients Ontario Honeoye Lake Nutrients Orange Greenwood Lake Nutrients Orange Monhagen Brook and tribs Nutrients Orange Orange Lake Nutrients Orleans Lake Ontario Shoreline, Western Nutrients Orleans Lake Ontario Shoreline, Western Nutrients Oswego Lake Neatahwanta Nutrients Oswego Pleasant Lake Nutrients Putnam Bog Brook Reservoir Nutrients Putnam Boyd Corners Reservoir Nutrients Putnam Croton Falls Reservoir Nutrients Putnam Diverting Reservoir Nutrients Putnam East Branch Reservoir Nutrients Putnam Lake Carmel Nutrients Putnam Middle Branch Reservoir Nutrients Putnam Oscawana Lake Nutrients Putnam Palmer Lake Nutrients Putnam West Branch Reservoir Nutrients Queens Bergen Basin Nutrients Queens Flushing Creek/Bay Nutrients Queens Jamaica Bay, Eastern, and tribs (Queens) Nutrients Queens Kissena Lake Nutrients Queens Meadow Lake Nutrients Queens Willow Lake Nutrients Rensselaer Nassau Lake Nutrients Rensselaer Snyders Lake Nutrients Richmond Grasmere Lake/Bradys Pond Nutrients Rockland Congers Lake, Swartout Lake Nutrients Rockland Rockland Lake Nutrients Saratoga Ballston Lake Nutrients Saratoga Dwaas Kill and tribs Silt/Sediment Saratoga Dwaas Kill and tribsNutrients Saratoga Lake Lonely Nutrients Saratoga Round Lake Nutrients Saratoga Tribs to Lake Lonely Nutrients 303(d) Segments Impaired by Construction Related Pollutant(s) Warren Huddle/Finkle Brooks and tribs Silt/Sediment Warren Indian Brook and tribs Silt/Sediment Warren Lake George Silt/Sediment Warren Tribs to L.George, Village of L George Silt/Sediment Washington Cossayuna Lake Nutrients Washington Lake Champlain, South Bay Nutrients Washington Tribs to L.George, East Shore Silt/Sediment Washington Wood Cr/Champlain Canal and minor tribs Nutrients Wayne Port Bay Nutrients Westchester Amawalk Reservoir Nutrients Westchester Blind Brook, Upper, and tribs Silt/Sediment Westchester Cross River Reservoir Nutrients Westchester Lake Katonah Nutrients Westchester Lake Lincolndale Nutrients Westchester Lake Meahagh Nutrients Westchester Lake Mohegan Nutrients Westchester Lake Shenorock Nutrients Westchester Long Island Sound, Westchester (East) Nutrients Westchester Mamaroneck River, Lower Silt/Sediment Westchester Mamaroneck River, Upper, and minor tribs Silt/Sediment Westchester Muscoot/Upper New Croton Reservoir Nutrients Westchester New Croton Reservoir Nutrients Westchester Peach Lake Nutrients Westchester Reservoir No.1 (Lake Isle) Nutrients Westchester Saw Mill River, Lower, and tribs Nutrients Westchester Saw Mill River, Middle, and tribs Nutrients Westchester Sheldrake River and tribs Silt/Sediment Westchester Sheldrake River and tribs Nutrients Westchester Silver Lake Nutrients Westchester Teatown Lake Nutrients Westchester Titicus Reservoir Nutrients Westchester Truesdale Lake Nutrients Westchester Wallace Pond Nutrients Wyoming Java Lake Nutrients Wyoming Silver Lake Nutrients APPENDIX F— List of NYS DEC Regional Offices 50 CIRCLE ROAD 50 CIRCLE ROAD t NASSAU AND SUFFOLK STOHV BROOK, NY 11790 STOHV BROOK, NY 11790-3409 TEL. (631) 444-0365 TEL. (631) 4444405 1 HUNTERS POINT P—, 1 HUNTERS PORE PLAZA, 2 BRON%, KINGS, NEw VORH, 474021 ST ST. A 4]-4021 ST ST. Q FEErvS AND RICHMOND LONG ISLAND CH,,N, 11101-5407 LONG ISLAND CII,, NY 11101,5407 TEL. (718)482-499] TEL. (718) 4824933 DuTCHESS, ORANGE, PUTNAM, 21 SOUTH PUTT CORNERS ROAD 100 HILLSIDE AVENUE, SUITE 1W 3 ROCK LAND, SULLIVAN, ULSTER NEW PALTZ, NY 12561-1696 WHITE PLAINS, NY 10603 Anu WESTCHESTER TEL L. (845)256-3059 TEL. (914) 428 - 2505 ALBANY, COLUMBIA, DELAWARE, GREErvE, 1150 NORTH WEN—ET ROAD 1130No RTH WESTCOLFROAD Q MONTGOMERY, OTSEOo, SCHE n ECTADY, NY 12306-2014 SCHENECTADY, NY 12306-2014 RENSSELAER, SCHENECTADY TEL. (518)35]-2069 TEL. (518) 357-2045 AND SCHOHARIE CLINTON,EONESSEX, FHnnnLln, 1115 STATE ROUTE 86, PO Box 296 232 GOLF COURSE ROAD 5 FDLTON, HAMILTON' RAY BROOK, NY 129]]-02% WARRENSBURO, NY12885-1172 TEL. SARATOOA, WABRen Anu TEL(518)89]-1234 (518)623-1200 WASHINGTON HERKIMER JEFFERSON, STATE OFFICE BUILDING STATE OFFICE BUILDING 6 LEWIS, ONEIDAAND 317WASHINGTON STREET 207GENESEE STREET ST. LAWRENCE WATERTOWN, NV 136013]8] UTICA, NV 13501-2885 TEL. (315) TEL. (315)]85-2245 793-2554 BROOMS, CAVORT, CHDISON, , CO RAGA, , 615 ERIE BLVD. WEST 615 ERIE BLVD. WEST MADISON, TOGA A GA, SYRACUSE, NY 13204-2400 SYRACUSE, NY 13204-2400 OSWEGO,SPEW TOGA AND TEL. (315) 426-7438 TEL. (315) 426-7500 TOMPKINS CHEMUNG, GENESEE, LIVINGSTON, MONROE, 6274 EAST AVON -LIMA 5274 EAST AVON -LIMA RD. $ OWARD ' ORLEANS, ROADAVON, NY 144149519 AVON, NY 14414-9519 SCHUYLER' SENECA, TEL. (585) 226-2466 TEL. (585) 226-2466 STEUBEN, WAVNE AND YAMS ALLEGANV, 2]O MICHIGANAVENUE 271 MICHIGAN AVENUE 9 CATTARAUGUS, BUFFALO, NY 14203-2999 BUFFALO, NV 14203-2999 CHAUTAUQUA, ERIE, TEL (/16) 851-]165 TEL. (/16) 851-]0]0 NIAGARAANDWVOMING 65 Appendix G Historic Preservation/Endangered Species Documentation NW t Rl Parks,, F ecreaflon,, STATE QF O3PP['RTUNITY. and Historic Preservation ANDREW M. CUOMO ROSE HARVEY Governor Commissioner November 19, 2018 Mr. Brian Donato Vice President of Development Conifer Realty, LLC 1000 University Ave Suite 500 Rochester, NY 14607 Re: HCR North Spring Run 131 Excelsior Avenue, Saratoga, Saratoga County, NY 18 P RO7435 Dear Mr. Donato: Thank you for requesting the comments of the State Historic Preservation Office (SHPO). We have reviewed the project in accordance with Section 106 of the National Historic Preservation Act of 1966. These comments are those of the SHPO and relate only to Historic/Cultural resources. They do not include potential environmental impacts to New York State Parkland that may be involved in or near your project. Such impacts must be considered as part of the environmental review of the project pursuant to the National Environmental Policy Act and/or the State Environmental Quality Review Act (New York Environmental Conservation Law Article 8). Based upon this review, the New York SHPO has determined that no historic properties will be affected by this undertaking. If further correspondence is required regarding this project, please be sure to refer to the OPRHP Project Review (PR) number noted above. Sincerely, Michael F. Lynch, P.E., AIA Director, Division for Historic Preservation Division for Historic Preservation P.O. Box 189, Waterford, New York 12188-0189 • (518) 237-8643 • www.nysparks.com EAF Mapper Summary Report Thursday, May 02, 2019 9:49 AM Part 1 / Question 7 [Critical Environmental Yes Area] Part 1 / Question 7 [Critical Environmental Name:Loughberry Lake Watershed, Reason:Protect Loughberry Lake water Area - Identify] supply, Agency:Saratoga Springs, City of, Date:6-13-86 Disclaimer: The EAF Mapper is a screening tool intended to assist r 966:5 2 +!� _ project sponsors and reviewing agencies in preparing an environmental 1 assessment form (EAF). Not all questions asked in the EAF are Yes {+ _. - .. 1 66 23-1-g I 166 23� 3-9 answered by the EAF Mapper. Additional information on any EAF Regulated Waterbodies] waterbodies is known to be incomplete. Refer to EAF Workbook. question can be obtained by consulting the EAF Workbooks. Although No 66 23-3{1 the EAF Mapper provides the most up-to-date digital data available to _ IfO DEC, you may also need to contact local or other data sources in order Workbook. Part 1 / Question 20 [Remediation Site] to obtain data not provided by the Mapper. Digital data is not a 166 _1.2 ,I substitute for agency determinations. � l . �166.31'::2 .1 66,31-1-2166.31-3� s L6 Fftirw:;, b1 o�r7c:rl u 166.3Q-1-1.1 161.31 -1 166.34'--12 166.34-1-1.2166.30-1-2 f $?I .gO 66. t-2-2166.31 -2 24 i I .166.30-1-3 1. 6'31-2-1Taranto/ � 66.1 --24.12 166'.31 4.1 . c'p,iP hIIII A 'ts�kt;irr� 16€.30 2 til -3 I xcarl6UP Aye Boston pwr aces: 1 11 i, 14 E Gaimin, LP ICs+elmncl +ntermap, II% . NRCa , Esri r •_ �I I ;I i �yT -34-2 is n. IETI ri ina rftng t 2 is ,ME, Garmin, Pidfa6rrgh1Y. Columbus 166.-4-2 . . aenSt UllnUff iVp, INCREMENT3 Is o t a Ft0ACan,EJapan, METI, 166.42.2 . Ws Com di, cinnali WOF-WtY � Ina 114ong Kong), ESFi Part 1 / Question 7 [Critical Environmental Yes Area] Part 1 / Question 7 [Critical Environmental Name:Loughberry Lake Watershed, Reason:Protect Loughberry Lake water Area - Identify] supply, Agency:Saratoga Springs, City of, Date:6-13-86 Part 1 / Question 12a [National or State No Register of Historic Places or State Eligible Sites] Part 1 / Question 12b [Archeological Sites] Yes Part 1 / Question 13a [Wetlands or Other Yes - Digital mapping information on local and federal wetlands and Regulated Waterbodies] waterbodies is known to be incomplete. Refer to EAF Workbook. Part 1 / Question 15 [Threatened or No Endangered Animal] Part 1 / Question 16 [100 Year Flood Plain] Digital mapping data are not available or are incomplete. Refer to EAF Workbook. Part 1 / Question 20 [Remediation Site] Yes Short Environmental Assessment Form - EAF Mapper Summary Report I Appendix H Deep Ripping and De -compaction (DEC, 2008) 410 NO 0 0 42 ce 0 U C, W w 0 a� ce P4 4) Y Y S "T bOA .O iC o � o Nu ccu m C. O � E .+ U ° � �� _ o o .N, w 4CL o Z 'E." a D H° Q a b, E o °a.45 s~ N w ow °� ❑ s.. v .��' s. O O o ypos�e�3 y c � cin o o o v •o abb on tb p o p `o' -0 y ° ° a'9oId on ma eb. o oago a � � v ° vo v 5 va va °E2 ° ❑ o� cvoUb30�c C X30 ¢OC7�3a°io c.�°o bb 12 °48 0 o cn o o`er a Q V o-6 0 0 0 � � .`� � -� aoi o a� �y.... U -� •o .3 a'.� w ° � � m a� a� -$ „ E s''� �, U �' � .� -o mac° o o p o :� � � s. E U O -p ai U G U d LL LL w O Z E.r 45 gg E3 oa Ov' Eaw 4� 2 .o° °y ❑ a o ° ° .� b o „ o a o bA 'bb Vtp ' v o v y Q w C7 do. Z W c4 ° > s 45 F o 3 Y 5 E S o ff° ahj °2p Ca cn `� Ej - v o w N U w o U. qN L bA o O N y ,3�y0oo °�...°E 0��g� o¢-,lz 300 -E ¢ a y ? 't-, in. °w 3 p bq—bb b y $ a o m UO Y � ,. a. v .�. p.. a. 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O' A• O o NO v W U to E == c R °' a. o -5 �'ci ❑ o ° � R o Ol O GOA. i bA � U m - L V 6b ° -00 ° 5 .cwaW � y ❑ O Ol m m � v � 0 b0 L� a � ° 5° P, O G A b U � .C.. C. CC � OJ ^w n C 121. R3 to a3 N y w Appendix I Stormwater Maintenance Agreement STORMWATER MANAGEMENT 242 Attachment I City of Saratoga Springs Schedule A Sample Stormwater Control Facility Maintenance Agreement Whereas, the Municipality of Saratoga springs ("Municipality") and the Conifer, LLC ("facility owner") want to enter into an agreement to provide for the long term maintenance and continuation of stormwater control measures approved by the Municipality for the below named project, and Whereas, the Municipality and the facility owner desire that the stormwater control measures be built in accordance with the approved project plans and thereafter be maintained, cleaned, repaired, replaced and continued in perpetuity in order to ensure optimum performance of the components. Therefore, the Municipality and the facility owner agree as follows: 1. This agreement binds the Municipality and the facility owner, its successors and assigns, to the maintenance provisions depicted in the approved project plans which are attached as Schedule A of this agreement. 2. The facility owner shall maintain, clean, repair, replace and continue the stormwater control measures depicted in Schedule A as necessary to ensure optimum performance of the measures to design specifications. The stormwater control measures shall include, but shall not be limited to, the following: drainage ditches, swales, dry wells, infiltrators, drop inlets, pipes, culverts, soil absorption devices and retention ponds. 3. The facility owner shall be responsible for all expenses related to the maintenance of the stormwater control measures and shall establish a means for the collection and distribution of expenses among parties for any commonly owned facilities. 4. The facility owner shall provide for the periodic inspection of the stormwater control measures, not less than once in every five-year period, to determine the condition and integrity of the measures. Such inspection shall be performed by a Professional Engineer licensed by the State of New York. The inspecting engineer shall prepare and submit to the Municipality within 30 days of the inspection, a written report of the findings including recommendations for those actions necessary for the continuation of the stormwater control measures. The facility owner shall not authorize, undertake or permit alteration, abandonment, modification or discontinuation of the stormwater control measures except in accordance with written approval of the Municipality. 6. The facility owner shall undertake necessary repairs and replacement of the stormwater control measures at the direction of the Municipality or in accordance with the recommendations of the inspecting engineer. 242 Attachment 1:1 01-01-2014 SARATOGA SPRINGS CODE 7. The facility owner shall provide to the Municipality within 30 days of the date of this agreement, a security for the maintenance and continuation of the stormwater control measures in the form of (a Bond, letter of credit or escrow account). This agreement shall be recorded in the Office of the County Clerk, Saratoga together with the deed for the common property included in the offering plan and/or prospectus approved pursuant to Conifer County of and shall be LLC 9. If ever the Municipality determines that the facility owner has failed to construct or maintain the stormwater control measures in accordance with the project plan or has failed to undertake corrective action specified by the Municipality or by the inspecting engineer, the Municipality is authorized to undertake such steps as reasonably necessary for the preservation, continuation or maintenance of the stormwater control measures and to affix the expenses thereof as a lien against the property. 10. This agreement is effective. 242 Attachment 1:2 01-01-2014