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HomeMy WebLinkAbout20210757 Myrtle Street Site Plan SWPPP � The LA GRC�UP �,, , �,�g ���ev �:�1�-5�7-���� Spi ings /:518 58I-018� f 12�66 www.lhel�group con� Laa�dscape ArchitectureC�Engineering P_C- Stormwater Pollution Prevention Plan Prepared in accordance with NYS DEC General Permit GP-0-20-001 for: Saratoga Hospital- Myrtle Street Owner/Operator(s): Saratoga Hospital 221 Church Street Saratoga Springs, NY 12866 SWPPP Contact(s): The LA Group, PC 40 Long Alley Saratoga Springs, NY 12866 1-518-587-8100 1-518-587-0180 SWPPP Preparation Date: July 22, 2021 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 SWPPPUPDATE.......................................................................................................................... 2 3.0 SITE ASSESSMENT, EVALUATION AND PLANNING.......................................................3 3.1 PROJECT LOCATION..................................................................................................................... 3 3.2 PRE-DEVELOPMENT CONDITIONS ................................................................................................ 3 3.3 PROJECT TYPE ............................................................................................................................. 3 3.4 PROJECT SCOPE............................................................................................................................ 3 3.5 HISTORIC PRESERVATION DETERMINATION................................................................................. 3 3.6 RECEIVING wATERS ....................................................................................................................4 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................................................ S 4.4 EROSION AND SEDIMENT CONTROL PRACTICE MAINTENANCE.................................................... 6 4.5 EROSION AND SEDIMENT CONTROL INSPECTION.......................................................................... 7 4.6 CONTRACTOR SEQUENCE FORM .................................................................................................. 8 5.0 POST CONSTRUCTION STORMWATER MANAGEMENT PRACTICES......................8 S.1 STORMWATER MANAGEMENT CONTROLS ................................................................................... 8 5.2 GREEN INFRASTRUCTURE PRACTICES/RUNOFF REDUCTION TECHNIQUES................................... 9 5.3 POST CONSTRUCTION STORMWATER MANAGEMENT DRAWINGS .............................................. 10 5.4 HYDRAULIC AND HYDROLOGIC ANALYSIS ................................................................................ 10 S.S COMPARISON OF PRE AND POST CONSTRUCTION STORMWATER RUNOFF.................................. 10 6.0 POST CONSTRUCTION STORMWATER MAINTENANCE............................................ ll 6.1 MAINTENANCE TO BE PERFORMED ............................................................................................ 11 7.0 CONSTRUCTION WASTE ...................................................................................................... 13 8.0 OFFSITE VEHICLE TRACKING........................................................................................... 13 9.0 TEMPORARY STABILIZATION FOR FROZEN CONDITIONS ..................................... 13 10.0 SPILL PREVENTION PRACTICES....................................................................................... 14 ll.0 CERTIFICATIONS.................................................................................................................... 18 12.0 DEFINITIONS............................................................................................................................23 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 Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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���ny�� Page 1 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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��ny�� Page 2 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 3.0 SITE ASSESSMENT, EVALUATION AND PLANNING 3.1 Project Location The Project is located at the intersection of Myrtle and Morgan Street, City of Saratoga Springs, Saratoga County, NY 12866. Access to the site is off of Myrtle and Morgan Street. See Appendix C for a general site location map. 3.2 Pre-Development Conditions Currently, the site is bound to the west by the Saratoga Golf and Polo Club. The site is bound to the south by Morgan Street and the north and east by existing residential properties. The existing cover present in the proposed area of disturbance is a mix of grass and wooded area with an existing driveway and residence. 3.3 Project Type This project is a new development project and has been designed in accordance with Chapter 4 of the NYSDEC Stormwater Management Design Manual and NYSDEC's General Permit (GP-0-20-001) for construction activities. Offsite work included as part of the project will be completed in accordance with Table 1 of Appendix B of the General Permit for "walking path projects". 3.4 Project Scope The Project includes the construction of a four (4) story medical 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. The Project Site represents the area that will be disturbed as a result of the Project. 3.5 Historic Preservation Determination/Endangered Species The project area is within an area that is shown on the OPRHP website that might possibly contain archeologically sensitive resources and therefore a phase 1 archeological study was completed. The results of the study did not identify the presence of archeological sites and that no additional investigation was recommended. An OPRHP letter stating that the project will have no impact on archeological and or historic resources can be found in Appendix G. The Project will have no impact on any listed, proposed to be listed, threatened or endangered species, or a critical habitat. The NYSDEC environmental mapper print out is provided in Appendix G. V The LA GROUP ��„ds�apeA,��„�e«�,�e���g��„eE��ny�� Page 3 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 3.6 Receiving Waters The Site drains to multiple locations offsite to the south to Myrtle & Morgan Street, to a wooded area to the west, an existing stormwater pond to the east and offsite to an existing subdivision to the North. The ultimate discharge for the site is Putman Brook. 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 Deerfield loamy fine sand, Galway loam and Windsor loamy sand. The hydrological soil group classifications are `A', `C' and `A' respectively. Test pits and falling head permeability tests were completed by Terracon Engineering in December 2015. Additional test pits and infiltration testing were completed in December 2020 and July 2021. Results of the tests 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 � The LA GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 4 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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. ✓ 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 Prior to permitting authority (City of Saratoga Springs) construction Delineate resources to protect and establish method of spoils Week 1 disposal (on-site and off) 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 Clear site and rough grade Weeks 2-5 Begin roadway grading and utility installation Weeks 5-12 Install permanent stormwater management practices week 7- completion � The LA GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 5 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 Begin building construction Weeks 9- completion Begin parking lot construction Weeks 12-20 Protect post-construction practice areas during construction Throughout to preserve native soil permeability, install SMP's only after site is stabilized construction Conduct soil restoration Week 15- completion Final fine grading, landscaping and stabilization Week 15- completion 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. When sediment material accumulates to one third of the silt fence height, the sediment will be removed and placed in an upland area and be stabilized. Any tears in the silt fence fabric will be repaired or replaced, any silt fence that is not properly toed in will be repaired and any broken posts will be replaced. ✓ Check dams — should be inspected after each rain event. Correct all damage immediately. If significant erosion has occurred between structures, a liner of stone or other suitable material should be installed. Remove sediment accumulated behind the dam as needed to allow channel to drain through the check dam and prevent large flows over the dam. ✓ Storm drain inlet protection (not including silt sacks) — inspect after each storm event. Remove sediment when 50 percent of the storage volume is achieved. ✓ Sediment trap — sediment shall be removed and the trap restored to the original dimensions when the sediment has accumulated to '/2 of the design depth. ✓ Sediment basins- should be inspected for stability and integrity at least once every seven (7) days and especially after rain storms. Any structural failure in sediment basins or trenches that serve them shall be repaired within 24 hours after detection. All temporary sediment basins or trenches shall be cleaned � The LA GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 6 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 out when one foot of sediment or half the design depth of the trap has accumulated. All spoils shall be removed to a stabilized upland area. ✓ 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. ✓ Rock outlet protection — once a riprap outlet has been installed, the maintenance needs are very low. It should be inspected after high flows for evidence of scour beneath the riprap. Repair should be immediate. ✓ Replace top-soil, mulch and seed where seeding has been disturbed. ✓ Dust control — if the site is subject to dusty conditions on the construction access roads or other open areas, these areas will be have water or other suitable material applied that will inhibit the production of dust. This will be done on an as needed basis or preventatively if problems are known to occur. No chemical or polymer materials should be applied in close proximity to any streams or wetlands. 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 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 � The LA GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 7 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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: ✓ Underground Infiltration Chambers ✓ Infiltration Basin ✓ Bioretention Basin ✓ Green Roof ✓ Pocket Pond � The LA GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 8 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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: ✓ Underground Infiltration Chambers ✓ Infiltration Basin ✓ Bioretention Basin ✓ Green Roof The provided runoff reduction volume is 0.305 ac-ft, which is greater than the required minimum runoff reduction volume of 0.127 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 ofSoil 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 gSG A& B HSG C&D (especially 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 appfied to enhance the reduction newly installed practice from any appfied specified for appropriate practices ongoing construction activities construct a single phase operation fence area. *Aeration inctudes the use of machines such as tractor-drawn implements with coutters making a narrow slit in the soil,a roller with many spikes making indentations in the soil,or prongs which function hke 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. � The LA GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 9 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 • 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. • 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 33.00 CFS 22.05 CFS 100 ear, 24 hour storm Q 77.93 CFS 58.07 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) � The LA GRDUP ,,,,,,A:�r. ,. .��.F,�;�,���„n��,�,:;�� Page 10 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 P = 90% Rainfall Event Rv = 0.05 + 0.009(I) where I is impervious cover in percent A = Subcatchment area in acres Re uired Provided Water Quality Volume (WQv) 0.407 AC FT 0.442 AC FT 6.0 POST CONSTRUCTION STORMWATER MAINTENANCE 6.1 Maintenance to be Performed Saratoga Hospital 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 Infiltration Chambers ■ 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. � The LA GR�UP Page 11 ��,�.,���o�._,:..:��,.E�:��,�„n��-���,,,�� Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 ■ 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. ■ 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. Green Roof ■ Maintenance may include watering, fertilizing and weeding as needed, specifically during the first year. ■ Roof drains should be checked after each major storm event and cleaned as needed. ■ Clean trash and debris out of system as necessary ■ Dead or diseased vegetation should be replaced ■ Areas devoid of mulch shall be re-mulched on an annual basis Pocket Pond ■ Should be inspected twice a year and after heavy rain storms. ■ Any erosion or scour occurring in the pond, forebay or outlets shall be repaired and revegetated as needed. ■ Sediment removal in the forebay shall occur every five to six years or when 50% full. ■ Regular litter control to be performed as needed. ■ Mow grass when it reaches 4-6 inches in height as needed Bioretention ■ Clean sediment out of pretreatment portion of the system when it accumulates to a depth of three inches or more ■ 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 � The LA GRDUP ,,,,,,A:�r. ,. .��.F,�;�,���„n��,�,:;�� Page 12 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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. 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 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 � The LA GRDUP ,,,,,,A:�r. ,. .��.F,�;�,���„n��,�,:;�� Page 13 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 1,000 square feet) or stabilized as per the temporary stabilization for winter construction/frozen conditions. ■ Any area of disturbance that will remain inactive for a period of 14 consecutive days MUST be mulched. This includes any previously disturbed areas that are covered with snow. ■ Mulch MUST consist of loose straw applied at the rate of 2 to 3 bales (90 to 100 pounds) per thousand square feet. ■ Mulch MUST be applied uniformly over the area of bare soil or bare soil that is covered with snow. For the latter condition, mulch MUST be applied on top of snow. ■ Using a tracked vehicle, mulch MUST be crimped into the bare soil/snow. The tracked vehicle MUST be driven across the mulched areas in at least two directions to maximize crimping of mulch into the soil/snow. ■ If mulch gets blown off an area to a significant degree, the site inspector WILL require that an area be re-mulched in accordance with Items 2 through 5 above, and this area WILL be included on the inspection checklist for the next inspection. ■ If a particular area repeatedly experiences loss of mulch due to wind, then the inspector WILL require that an alternative method be used to secure the mulch in place. Such alternatives may include the use of netting, tackifier or other methods deemed appropriate by the inspector. ■ During periods when snow is melting and/or surface soils are thawing during daytime hours, mulched areas MUST be re-tracked (crimped) as per Item 5 above at least once every seven days, more frequently if directed by the inspector. Additional mulch may be required to obtain complete coverage of an area. Biodegradable erosion control matting may be required on steeper slopes. ■ Additional stabilization measures for non-frozen ground conditions described in this SWPPP WILL be implemented at the time deemed appropriate by the inspector. During the winter season, if a site has been stabilized and soil disturbing activities have been suspended for the winter, weekly inspections can be suspended. However, monthly inspections must still be conducted. All normal weekly inspections must resume when soil disturbing activities resume. 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. � The LA GRDUP ,,,,,,A:�r. ,. .��.F,�;�,���„n��,�,:;�� Page 14 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 ■ All materials stored on site will be stored in a neat, orderly manner in their appropriate containers, and if possible, under a roof or other enclosure. ■ Products will be kept in their original containers with the original manufacturer's label. ■ Substances will not be mixed with one another unless recommended by the manufacturer. ■ Whenever possible, all of a product will be used up before disposal. ■ Manufacturer's recommendations for proper use and disposal will be followed. ■ The construction manager or his designee will inspect regularly to ensure proper use and disposal of materials on site. ■ The contractor shall prohibit washing of tools, equipment, and machinery in or within 100 feet of any watercourse or wetland. ■ All above grade storage tanks are to be protected from vehicle damage by temporary barriers. Inventory for Pollution Prevention Plan The materials and substances listed below are expected to be on-site during construction. ■ Petroleum for fueling vehicles will be stored in above ground storage tanks. Tanks will either be steel with an enclosure capable of holding 110% of the storage tank volume or of a Con-Store, concrete encased type typically employed by NYSDOT. Hydraulic oil and other oils will be stored in their original containers. Concrete and asphalt will be stored in the original delivery trucks. ■ Fertilizer may be stored on site in its original container for a short period of time prior to seeding. Original containers will be safely piled on pallets or similar devices to protect from moisture. ■ Paints and other similar materials will be stored in their original containers and all empty containers will be disposed of in accordance with label directions. ■ Portable sanitary facilities, which contain chemical disinfectants (deodorants) will be located on-site, with the disinfectants held in the tank of the toilet. Hazardous Products These practices are used to reduce the risks associated with hazardous materials. ■ 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. � The LA GRDUP ,,,,,,A:�r. ,. .��.F,�;�,���„n��,�,:;�� Page 15 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 ■ If surplus product must be disposed of, manufacturers' or local and State recommended methods for proper disposal will be followed. Spill Prevention The following product specific practices will be followed on site. Petroleum Products: ■ Construction personnel should be made aware that emergency telephone numbers are located in this SWPPP. ■ The contractor shall immediately contact NYSDEC in the event of a spill, and shall take all appropriate steps to contain the spill, including construction of a dike around the spill and placing absorbent material over this spill. ■ The contractor shall instruct personnel that spillage of fuels, oils, and similar chemicals must be avoided and will have arranged with a qualified spill remediation company to serve the site. ■ Fuels, oils, and chemicals will be stored in appropriate and tightly capped containers. Containers shall not be disposed of on the project site. ■ Fuels, oils, chemicals, material, equipment, and sanitary facilities will be stored/located away from trees and at least 100 feet from streams, wells, wet areas, and other environmentally sensitive sites. ■ Dispose of chemical containers and surplus chemicals off the project site in accordance with label directions. ■ Use tight connections and hoses with appropriate nozzles in all operations involving fuels, lubricating materials or chemicals. ■ Use funnels when pouring fuels, lubricating materials or chemicals. ■ Refueling and cleaning of construction equipment will take place in parking areas to provide rapid response to emergency situations. ■ All on-site vehicles will be monitored for leaks and receive regular preventative maintenance to reduce the chance of leakage. Any vehicle leaking fuel or hydraulic fuel will be immediately scheduled for repairs and use will be discontinued until repairs are made. Fertilizers: ■ Fertilizer will be stored in its original containers on pallets with water resistant coverings. ■ Proper delivery scheduling will minimize storage time. ■ Any damaged containers will be repaired immediately upon discovery and any released fertilizer recovered to the fullest extent practicable. � The LA GRDUP ,,,,,,A:�r. ,. .��.F,�;�,���„n��,�,:;�� Page 16 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 Paints: ■ All containers will be tightly sealed and stored when not required for use. ■ Excess paint will not be discharged to the storm water system or wastewater system, but will be properly disposed of according to manufacturers' instructions or State and local regulations. Concrete Trucks: ■ Concrete trucks will be allowed to wash out or discharge surplus concrete or drum wash water only at designated locations on site. Asphalt Trucks: ■ Asphalt trucks shall not discharge surplus asphalt on the site. Spill Control Practices In addition to the good housekeeping and material management practices discussed in the previous sections of this plan, the following practices will be followed for spill prevention and cleanup. The construction manager or site superintendent responsible for the day-to-day site operations will be the spill prevention and cleanup coordinator. He will designate at least three other site personnel who will receive spill prevention and cleanup training. These individuals will each become responsible for a particular phase of prevention and cleanup. The names of responsible spill personnel will be posted in the material storage area and in the onsite construction office or trailer. ■ Manufacturers' recommended methods for spill cleanup will be clearly posted and site personnel will be made aware of the procedures and the location of the information and cleanup supplies. Any spill in excess or suspected to be in excess of two gallons will be reported to the NYSDEC Regional Spill Response Unit. Notification to the NYSDEC (1-800-457-7362) must be completed within two hours of the discovery of the spill. ■ Materials and equipment necessary for spill cleanup will be kept in the material storage area onsite. Equipment and materials will include but not be limited to absorbent pads, brooms, dust pans, mops, rags, gloves, goggles, activated clay, sand, sawdust, and plastic and metal trash containers specifically for this purpose. ■ All spills will be cleaned up immediately after discovery. ■ The spill area will be kept well ventilated and personnel will wear appropriate protective clothing to prevent injury from contact with spilled substance. ■ Spills of toxic or hazardous material will be reported to the appropriate State or local government agency, regardless of the size � The LA GRDUP ,,,,,,A:�r. ,. .��.F,�;�,���„n��,�,:;�� Page 17 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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. 1 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: Kevin Ronayne Title: Signature: Date: Company Name: � The LA GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 18 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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 GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 19 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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 GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 20 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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 GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 21 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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 GRDUP ,,,,,,A:�r. ,. .��.F,�;�,���„n��,�,:;�� Page22 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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 GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 23 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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 GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 24 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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 GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 25 Stormwater Pollution Prevention Plan Saratoga Hospital- Myrtle Street The LA Group Project# 201517 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-2015\201517_Saratoga Hospital_PUD Amendment Myrtle_St\201517Enviro\02SWPPP\201517_SWPPP.docx � The LA GRDUP ,,,,.,,:..r. ,. .�,.F,� �,���„n��,�,:;�� Page 26 Appendix A Notice of Intent (NOI) and MS4 Acceptance Form 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 NOI for coverage under Stormwater General Permit for Construction Activity version 1.30 (Submission #: HPA-DSEM-1T7P3, version 1) Detai Is Submission Alias Saratoga Hospital-Surgery Center Originally Started By Brett Strom Submission ID HPA-DSEM-1T7P3 Submission Reason New Status Draft Form Input Owner/Operator Information Owner/Operator Name (Company/Private Owner/Municipality/Agency/Institution, etc.) Saratoga Hospital Owner/Operator Contact Person Last Name (NOT CONSULTANT) Ronayne Owner/Operator Contact Person First Name Kevin Owner/Operator Mailing Address 221 Church Street City Saratoga Springs State NY https://nform-prod.dec.ny.gov/app/#/submissionwizard/2e3ed844-2184-4bce-a783-baee38802151/11 1/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 Zip 12866 Phone 518-587-3222 Email kronayne@saratogacare.org Federal Tax ID 14-1338547 Project Location Project/Site Name Saratoga Hospital- Myrtle Street Street Address (Not P.O. Box) Myrtle Street Side of Street North City/TownNillage (THAT ISSUES BUILDING PERMIT) Saratoga Springs State NY Zip 12866 DEC Region 5 County SARATOGA Name of Nearest Cross Street Morgan Street Distance to Nearest Cross Street (Feet) 0 Project In Relation to Cross Street North Tax Map Numbers Section-Block-Parcel 165-1-37.2,165-1-37.1 https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 2/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 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 43.088712931360945,-73.79812930325481 Project Details 2. What is the nature of this project? New Construction 3. Select the predominant land use for both pre and post development conditions. Pre-Development Existing Landuse Other: Medical Facility Post-Development Future Land Use Other: Medical Facility 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) 19.8 Total Area to be Disturbed (acres) 7.4 Existing Impervious Area to be Disturbed (acres) 0.7 https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 3/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 Future Impervious Area Within Disturbed Area (acres) 5.1 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 (%) 10 B (%) 0 C �%� 90 D (%) 0 7. Is this a phased project? Yes 8. Enter the planned start and end dates of the disturbance activities. Start Date 4/1/2022 End Date 12/1/2022 9. Identify the nearest surface waterbody(ies) to which construction site runoff will discharge. Putnam Brook 9a. Type of waterbody identified in question 9? Stream/Creek Off 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 https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 4/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 11. Is this project located in one of the Watersheds identified in Appendix C of GP-O- 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 Required SWPPP Components https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 5/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 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 NY 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 https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 6/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 3) Scan the signed form 4) Upload the scanned document Download SWPPP Preparer Certification Form Please upload the SWPPP Preparer Certification SH Surgery Center Preparer Form.pdf - 09/1 7/201 9 03:29 PM Comment NONE PROVIDED 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 Dust Control Silt Fence Stabilized Construction Entrance 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. Reduction of Clearing and Grading https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 7/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 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) 0.407 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. For the Area Reduction Techniques, provide the total contributing area (includes pervious area) and, if applicable, the total impervious area that contributes runoff to the technique/practice. Note: Redevelopment projects shall use 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. 30. Indicate the Total RRv provided by the RR techniques (Areallolume Reduction) and Standard SMPs with RRv capacity identified in question 29. (acre-feet) 0.305 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) 0.127 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. https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 8/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 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) .137 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). .442 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) NONE PROVIDED CPv Provided (acre-feet) NONE PROVIDED 36a. The need to provide channel protection has been waived because: Reduction of the total CPv is achieved on site through runoff reduction techniques or infiltration systems. 37. Provide the Overbank Flood (Qp) and Extreme Flood (Qf) control criteria or select waiver (#37a), if applicable. Overbank Flood Control Criteria (Qp) https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 9/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 Pre-Development (CFS) 33.0 Post-Development (CFS) 22.05 Total Extreme Flood Control Criteria (Qf) Pre-Development (CFS) 77.93 Post-Development (CFS) 58.07 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 Saratoga Hospital 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 could not be reduced due to shallow depths to bedrock. 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/2e3ed844-2184-4bce-a783-baee38802151/11 10/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. 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) NONE PROVIDED 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) 0.5 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) 0.5 https://nform-prod.dec.ny.gov/app/#/submissionwizard/2e3ed844-2184-4bce-a783-baee38802151/11 11/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 Total Contributing Impervious Acres for Dry Well (I-3) NONE PROVIDED Total Contributing Impervious Acres for Underground Infiltration System (I-4) 1.5 Total Contributing Impervious Acres for Bioretention (F-5) 0.9 Total Contributing Impervious Acres for Dry Swale (O-1) NONE PROVIDED 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) 1.2 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 https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 12/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 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 NONE PROVIDED Total Contributing Impervious Area for Wet Vault NONE PROVIDED Total Contributing Impervious Area for Media Filter NONE PROVIDED "Other" Alternative SMP? NONE PROVIDED 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 NONE PROVIDED Name of Alternative SMP NONE PROVIDED 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 https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 13/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 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? NONE PROVIDED MS4 SWPPP Acceptance Form Download Download form from the link below. Complete, sign, and upload. MS4 SWPPP Acceptance Form MS4 Acceptance Form Upload SH Surgery Center MS4 Acceptance Signed.pdf- 09/17/2019 03:40 PM Comment NONE PROVIDED 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 SH-Sugery Center Owner Form.pdf - 09/1 7/201 9 03:30 PM Comment NONE PROVIDED https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 14/15 7/23/2021 NYSDEC eBusiness Portal System-Saratoga Hospital-Surgery Center. Revision 1 Attachments Date Attachment Name Context User 9/1 7/201 9 3:40 SH Surgery_Center MS4 Acceptance Brett PM Signed.pdf Attachment Strom 9/1 7/201 9 3:30 SH-Sugery_Center Owner Form.pdf Attachment Brett PM — Strom 9/1 7/201 9 3:29 SH Surgery_Center Preparer Form.pdf Attachment Brett PM — — Strom https://nfo rm-prod.dec.ny.gov/app/#/subm issionwiza rd/2e3ed844-2184-4bce-a783-baee38802151/11 15/15 Appendix B Stormwater Management Report Hydro CAD � The L�r GR�UP �� � ��,�l ��s�v ,� �1� ���-����a ��=.�iu ��, Springs fS18 58�I-0180 La��dscapeArchitecture�EngineeringP.c. �`1y 12866 wwvv.l�l1elegi'Olap.c0[T7 Stormwater Management Report for: Saratoga Hospital at Myrtle Street Saratoga Springs, NY 12866 Saratoga County Owner/Operator(s): Saratoga Hospital 221 Church Street Saratoga Springs, NY 12866 Contact: Kevin Ronayne (518) 580-2452 SWM Report Contact(s): The LA Group, PC 40 Long Alley Saratoga Springs, NY 12866 1-518-587-8100 Project No. 201517 Preparation Date: July 22, 2021 Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 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..............................................................................4 3.0 EXISTING CONDITIONS..................................................................................................5 4.0 PROPOSED CONDITIONS................................................................................................5 5.0 NYSDEC DESIGN CRITERIA...........................................................................................6 S.1 SITE PLANNING TO PRESERVE NATURAL FEATURES............................................................6 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.................................11 6.0 PROPOSED STORMWATER FACILITIES.................................................................11 6.1 PRETREATMENT.................................................................................................................11 6.2 TREATMENT.......................................................................................................................11 7.0 POST-CONSTRUCTION MAINTENANCE REQUIREMENTS................................12 7.0 REFERENCES...................................................................................................................13 Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 Attachment A SoilInvestigations Soil Survey Natural Resource Map B Existing Conditions Watershed Map and HydroCAD Calculations C Proposed Conditions Watershed Map, HydroCAD Calculations & Frozen Conditions D Storm Data Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 1.0 INTRODUCTION The following is a Stormwater Management Report (SWM Report) developed for the Operator, NRP Holdings, LLC, for the Tait Lane Reserve, herein referred to as the"Proj ect." 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 Chapter 4 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 off Myrtle Street and Morgan Street in Saratoga Springs, Saratoga County, NY 12866. Access to the site is off Myrtle Street and Morgan Street. 2.2 Project Description The Project includes the construction of a four (4) story medical 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. The Project Site represents the area that will be disturbed as a result of the Project. The project is considered a new developmentprojectper Chapters 4 of the SWMDM. The Project Site represents the area that will be disturbed as a result of the Project. 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 Deerfield loamy fine sand, Galway loam and Windsor loamy sand. The hydrological soil group classi�cations for the soils are `A', `C' and `A' respectively. 2.4 Curve Numbers and Rainfall Data The surface cover for the project area is grass, woods and an impervious driveway. The curve numbers utilized in the modeling were assigned based on cover type and HSG soil classification. V The LA GROUP Landscape Ar_h'i[ecture!ff tng'ineering P L 4 Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 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 grass and woods. Under the watershed's existing condition, the majority of the runoff from the site flows offsite to the south and west. A total of�ve (5) analysis points were used to 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 Existin Conditions Peak Dischar e Rates Analysis AP-1 AP-2 AP-3 AP-4 AP-5 Point Design Storm (cfs) (cfs) (cfs) (cfs) (cfs) 10-Year 725 4.54 7.40 12.90 0.91 100-Year 16.92 10.96 16.73 3120 2.12 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 points as in the Existing Condition (Analysis Points 1-5). 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 pocket pond, underground infiltration chambers, in�ltration basin, green roof and a bioretention basin have been incorporated into the stormwater management design to mitigate the quality and quantity of stormwater runoff discharged from the Project Site. Table 4-1 below provides a summary of the existing conditions versus proposed conditions peak discharge rates for the Project's watershed. � The LA GROUP Landscape Ar_h'i[ecture!ff tng'ineering P L 5 Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 Table 4-1 Existin Conditions Versus Pro osed Conditions Peak Dischar e Rates Analysis AP-1 AP-2 AP-3 AP-4 AP-5 Point EXisting Proposed Existing Proposed Existing Proposed EXisting Proposed Existing Proposed Design Storm (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 10-Year 7.25 4.62 4.54 2.96 7.40 3.16 12.90 10.49 091 0.82 100-Year 16.92 9.81 10.96 7.14 16.73 13.76 31.20 25.43 2.12 1.93 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. 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 � The LA GROUP Landscape Ar_h'i[ecturelfftng'ineering F'_L 6 Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 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 no wetlands located near the project site. • 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 o There are no steep slopes located throughout the project. • Existing soils, including hydrologic soil groups and soil erodibility o See Section 23 of this Report. • Drainage Patterns o See Section 3.0 of this Report. • Bedrock/Significant geological features � The LA GROUP �zndsczpF nchl�eu��e tL Englneei Ing N c � Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 o See Section 23 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. Offsite work will be completed in accordance with Table 1 in Appendix B of the NYSDEC General Permit (GP-0-20-001) for which the construction of walking paths only require erosion and sediment control. 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(� where I is percent impervious cover A = Site area in acres The required WQv will be provided by a pocket pond, underground infiltration chambers, infiltration basin, green roof and a bioretention basin designed in accordance with the SWMDM. The total required WQv for the project is 0.407 ao-ft. Refer to Table 5-1 for a summary of the provided water quality volumes for the Project. Table 5-1 Water Qualit Volume Qv Summar SMP Type Provided (ac-ft) SMP1 Green Roof 0.046 SMP2 Infiltration Basin 0.059 SMP3 Bioretention Basin 0.086 SMP4 Underground Infiltration Chambers 0.136 SMPS Pocket Pond 0.115 TOTAL 0.442 � The LA GROUP �zndsczpF nchl�eu��e tL Englneei Ing N c g Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 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 infiltration, 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 0.305 acre-feet is provided which is greater than the minimum required RRv of 0.127 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 - 5.32 Sheetflow to Riparian Buffers/Filter Strips - 5.3.3 Vegetated Open Swales - 5.3.4 Tree Planting/Tree Box - 5.3.5 Disconnection of Rooftop Runoff - 5.3.6 Stream Daylighting - 5.3.7 Rain Garden - 5.3.8 Green Roof 0.046 5.3.9 Stormwater Planters - 5.3.10 Rain Tanks/Cisterns - 5.3.11 Porous Pavement - Underground Infiltration Chambers 0.136 Infiltration Basin 0.059 Bioretention Basin 0.064 TOTAL 0.305 (ac-ft) � The LA GROUP Landscape Ar_h'i[ecturelfftng'ineering F'_L 9 Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 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 specific site limitations: • 5.3.1 Conservation of Natural Areas o Conservation areas is notproposed as there is insuf�cient 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 is used as part of this project but credit is not taked due to the low RRv credit(<0.001 ao-ft). • 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 and a green roof is proposed. • 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), specified in The Manual. • 5.3.8 Green Roof o A green roof is proposed as part of this project. • 5.3.9 Stormwater Planters o Stormwater planters are not proposed as part of this project due to poor existing soils. • 5.3.10 Rain Tanks/Cisterns o Rain tanks/cisterns are not financially feasible. • 5.3.11 Porous Pavement o Porous pa�ement is not proposed due to locations of shallow depth to bedrock. 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 (bioretention basin, in�ltration basin, underground infiltration chambers, green roof�. The provided channel protection volume is equal to runoff reduction provided by the green infrastructure practices. The provided channel protection volume (0305 ao-ft) is greater than the required channel protection volume of 0.100 ac-ft. � The LA GROUP Landscape Ar_h'i[ecture!ff tng'ineering P L 1 O Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 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 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 a pocket pond, underground in�ltration chambers, infiltration basin, green roof and a bioretention basin to address stormwater requirements for the project. The stormwater facilities have been indicated on the plans and HydroCAD reports as SMP-1 through SMP-5. SMP-1 is a green roof located on the main building will treat roof runoff. SMP-2 is the infiltration basin located to the north of the parking lot and runoff from the parking lot. SMP-3 is a bioretention basin located in the center of the site that will treat parking lot runoff. SMP-4 are underground infiltration chambers located to the east of the main building and will treat parking lot runoff. SMP-5 is a pocket pond located to the west of the main building and will treat parking lot and roadway runoff. 61 Pretreatment Pretreatment of runoff for SMP-2 and SMP-3 is provided by hydrodynamic separators. SMP-4 uses an isolator row to pretreat runoff prior to stormwater reaching the other chambers. SMP-5 uses forebays to pretreat runoff prior to discharging into the pocket pond. 6.2 Treatment Treatment for runoff entering in infiltration basin and underground in�ltration chambers is provided by capturing and treating the entire WQv though in�ltration into the underlying soils. Treated of runoff entering the green roof and bioretention basin is treated by infiltration stormwater through the soil media prior to discharge. Treatment of runoff entering the pocket pond is treated by attenuating the full WQv within the permanent pool. The total storage is the � The LA GROUP Landscape Ar_h'i[ecture!ff tng'ineering P L 1 1 Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 volume within the pond below the invert of the outlet control structure as well as the storage within the forebay below the overflow weirs. 7.0 POST-CONSTRUCTION MAINTENANCE REQUIREMENTS Saratoga Hospital 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 Landscepe Architetture!ff tng'ineering P L 12, Stormwater Management Report Saratoga Hospital- Myrtle Street 201517 7.0 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-2015\201517_Saratoga Hospital_PUD Amendment Myrtle_St\201517Enviro\02SWPPP\201517_SWM Report.doc ` The LA GROUP Landscepe Architetture!ff tng'ineering P L 1 3 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 �. . �� . , _ � _ -. ,�= :. � e _ - , - ��,� , �,�,�' .� �_ '�. *.:�� � , �� �' �`'�°. . _ _ � � � � ° �����,.'o �t ,� �� �' ' � , July 9, 2021 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 DeB—Deerfield loamy fine sand, 3 to 8 percent slopes..............................13 GaC—Galway loam, 8 to 15 percent slopes............................................... 14 WnB—Wndsor loamy sand, 3 to 8 percent slopes.....................................15 References............................................................................................................18 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. 7 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 Custom Soil Resource Report � Soil Map � � � a �.a�eoo �.a�o �.a�soo �.a�c�o �.anoo �.aneo �.a�soo �.a�aso �.a�soo �.a�seo 5ss000 43°5'28"N �.. - I ,. . � .�- 43°5'28"N o M Z. . � ,. • � s'� � " .'� � --.1... � 5 r ' , � � �� y.�,� �,.�.; a �`' �� .i'%- .. ,:.� `��+ �, � �% � � F�� . �:: .�i��— � ,�._ — � A�'' ,i� ��s � �. . . , _. _ ..,.� � a�`. ` � � � � ;�.� � '�`,, o .� .� �K . , _ � � � �.. � . d- �..;�. �. �, � - �: � � ;.� � : ... � � �.��,'�^� ., `, � , . -` �.,' -.,._,.a,. o - :�:�.; . �• �,,;;,. - - � d '"r.�„F � � I � o v - � , ` - - � — I I � - �P � . �c,.� • _ -� � � v , , ��...�►��� _ � ',� �,., � , ; ,.�'-� � ;� ��. � _ ._ ,#1�_, � � �r, � � � a ;_ . . , .. .. . ` ' J; =6 —� � ..; �-, - a . ,< • s:' - „ _ • : +q � 7 � _ � . �• x • - . . 'i �_ . .. _ - . Y� ��� !.'.r '��� � �CJ�w ..= o v . , � .�.: .. _m �vY '. � a � : � .' Soil Map may not be vali'�,�at this scal.e.,; _, — =- J �� , � �i� ' ?� _ _ � w . _ _ r :. , � -" . 43°5'16"N , � '�_...•,x_.r r�� -_ � ._ :. 1 � .�_;_�t�� � 43°5'16"N .�'—�" ,�r�= �_ I �.a�eoo �.a�5so �.a�soo �.a�c�o �.anoo �.aneo �.a�soo �.a�aso �.a�soo �.a�seo 5ss000 � � o� v � Map Scale:1:2,490 if printed on A laix�pe(11"x 8.5")she�. ` ^ N Meters ` 0 � 70 140 210 � � 0 100 Z00 400 E00 Mapprojection:VVebMercator Canermorclinates:WGS84 Edgetics:UTM 7�ne 18N WGS84 9 Custom Soil Resource Report MAP LEGEND MAP INFORMATION Area of Interest(AOI) Spoil Area The soil surveys that comprise your AOI were mapped at Area of Interest(AOI) 1 24,000. Stony Spot Soils Very Stony Spot Soil Map Unit Polygons Warning:Soil Map may not be valid at this scale. Wet Spot � � Soil Map Unit Lines " Enlargement of maps beyond the scale of mapping can cause Other misunderstandin of the detail of ma in and accurac of soil 0 Soil Map Unit Points � 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 � Blowout Water Features sCale. Streams and Canals �:, Borrow Pit Transportation Please rely on the bar scale on each map sheet for map � Clay Spot Rails measurements. i-�-+ Closed Depression _ Interstate Highways Source of Map: Natural Resources Conservation Service , Gravel Pit US Routes Web Soll Sulvey URL: Gravelly Spot Coordinate System: Web Mercator(EPSG3857) Major Roads :r•r Landfill Local Roads Maps from the Web Soil Survey are based on the Web Mercator � Lava Flow gackground 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 J� Saline Spot Suroey Area Data: Version 20,Jun 11,2020 . 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: Jun 10,2015—Mar - Slide or Slip 29,2017 0o Sodic Spot The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps.As a result,some minor shifting of map unit boundaries may be evident. 10 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI DeB Deerfield loamy fine sand,3 to 0.4 2.5°k 8 percent slopes GaC Galway loam,8 to 15 percent 15.5 89.8°k slopes WnB Windsor loamy sand,3 to 8 1.3 7.7°k percent slopes Totals for Area of Interest 17.3 100.0% 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. Wthin 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 11 Custom Soil Resource Report landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12 Custom Soil Resource Report Saratoga County, New York DeB—DeerField loamy fine sand, 3 to 8 percent slopes Map Unit Setting National map unit symbol: 2xfg9 Elevation: 0 to 1,190 feet Mean annual precipitation: 36 to 71 inches Mean annual airtemperature: 39 to 55 degrees F Frost-free period: 145 to 240 days Farmland classification: Farmland of statewide importance Map Unit Composition Deerfield and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of DeerField Setting Landform: Outwash terraces, outwash deltas, kame terraces, outwash plains Landform position (three-dimensional):Tread Down-slope shape: Convex, linear, concave Across-slope shape: Concave, linear, convex Parent material: Sandy outwash derived from granite, gneiss, and/or quartzite Typical profile Ap-0 to 9 inches: loamy fine sand Bw- 9 to 25 inches: loamy fine sand BC-25 to 33 inches: fine sand Cg-33 to 60 inches: sand Properties and qualities Slope: 3 to 8 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Runoff class: Very 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:About 15 to 37 inches Frequency of flooding: None Frequency of ponding: None Maximum salinity: Nonsaline (0.0 to 1.9 mmhos/cm) Sodium adsorption ratio, maximum: 11.0 Available water capacity: Moderate (about 6.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: A Hydric soil rating: No Minor Components Windsor Percent of map unit: 7 percent 13 Custom Soil Resource Report Landform: Outwash deltas, kame terraces, outwash plains, outwash terraces Landform position (three-dimensional):Tread Down-slope shape: Linear, concave, convex Across-slope shape: Concave, linear, convex Hydric soil rating: No Wareham Percent of map unit: 5 percent Landform: Depressions, drainageways Down-slope shape: Concave Across-slope shape: Concave Hydric soil rating: Yes Sudbury Percent of map unit:2 percent Landform: Outwash plains, outwash terraces, outwash deltas, kame terraces Landform position (three-dimensional):Tread Down-slope shape: Linear, convex, concave Across-slope shape: Concave, linear, convex Hydric soil rating: No Ninigret Percent of map unit: 1 percent Landform: Kame terraces, outwash terraces, outwash plains Landform position (three-dimensional):Tread Down-slope shape: Convex, linear Across-slope shape: Convex, concave Hydric soil rating: No GaC—Galway loam, 8 to 15 percent slopes Map Unit Setting National map unit symbol: 9wb2 Elevation: 150 to 1,000 feet Mean annual precipitation: 36 to 48 inches Mean annual airtemperature: 45 to 48 degrees F Frost-free period: 125 to 160 days Farmland classification: Farmland of statewide importance Map Unit Composition Galway and similar soils: 70 percent Minor components: 30 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Galway Setting Landform: Benches, ridges, till plains Landform position (two-dimensional): Shoulder Landform position (three-dimensional): Crest Down-slope shape: Convex 14 Custom Soil Resource Report Across-slope shape: Convex Parent material: Calcareous loamy till Typical profile H1 -0 to 6 inches: loam H2- 6 to 28 inches: loam BC-28 to 30 inches: fine sandy loam 2R-30 to 40 inches: unweathered bedrock Properties and qualities Slope: 8 to 15 percent Depth to restrictive feature:20 to 40 inches to lithic bedrock Drainage class:Well drained Capacity of the most limiting layer to transmit water(Ksat):Very low to high (0.00 to 1.98 in/hr) Depth to water table:About 18 to 36 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 5 percent Available water capacity: Low (about 4.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: C Ecological site: F144AY036NY- Semi-Rich Well Drained Till Uplands Hydric soil rating: No Minor Components Charlton Percent of map unit: 15 percent Hydric soil rating: No Farmington Percent of map unit: 10 percent Hydric soil rating: No Newstead Percent of map unit: 5 percent Hydric soil rating: No 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 airtemperature: 39 to 55 degrees F Frost-free period: 140 to 240 days Farmland classification: Farmland of statewide importance 15 Custom Soil Resource Report Map Unit Composition �ndsor, 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: Outwash terraces, deltas, outwash plains, dunes Landform position (three-dimensional):Tread, riser Down-slope shape: Linear, convex Across-slope shape: Linear, convex Parent material: Loose sandy glaciofluvial deposits derived from granite and/or loose sandy glaciofluvial deposits derived from schist and/or loose sandy glaciofluvial deposits derived from gneiss Typical profile O-0 to 1 inches: moderately decomposed plant material A - 1 to 3 inches: loamy sand Bw-3 to 25 inches: loamy sand C-25 to 65 inches: sand Properties and qualities Slope: 3 to 8 percent Depth to restrictive feature: More than 80 inches 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 capacity: 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 Hydric soil rating: No Minor Components Hinckley, loamy sand Percent of map unit: 10 percent Landform: Outwash plains, eskers, kames, deltas Landform position (two-dimensional): Summit, shoulder, backslope Landform position (three-dimensional): Nose slope, side slope, crest, head slope, rise Down-slope shape: Convex Across-slope shape: Linear, convex Hydric soil rating: No Deerfield, loamy sand Percent of map unit: 5 percent 16 Custom Soil Resource Report Landform:Terraces, deltas, 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 17 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 Wldlife 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 142 p2_0 54262 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 Wldlife 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 18 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:// www.n res.usda.gov/I nternet/FSE_DOCU M ENTS/n res142p2_052290.pdf 19 � Th� LA GRQUP Landscape Arcliieecture O.Enqirreerinq P.C. pe�o�,/c,l'u�o�r€.Vl re. =E�1 LC]IlC�7 t11�E'v 5�ralog� Springs NY 12866 p:518-587-€3100 /. 518-58'1-0180 :'�„��,rr,,�d.11�t'I�r���'r�nn CO�Ii To: Matthew Brobston From: Brett Strom Date 12-15-2020 Subject: Myrtle Street Test Pit Report Today, I observed 12 deep hole test pits and completed 7 falling head permeability tests at 1 Myrtle Street in Saratoga Springs, NY. Test pit locations can be found on the attached map. TP-20 0-6"Topsoil 6-30" 10 YR 3/3 Dark brown silt, trace clay 30-48" 10 YR 4/4 light brown dense clay Bedrock at 48", strong seeps at 48", no SHWT observed No falling head permeability test completed. TP-21 0-6"Topsoil 6-24" 10 YR 3/3 dark brown silt, trace clay, large boulders throughout 24-96" 10 YR 4/4 light brown dense clay Bedrock at 96", strong seeps at 96", no SHWT observed Falling head permeability test completed at 48", no infiltration. TP-22 0-8"Topsoil 8 - 20" 10 YR 3/3 dark brown silt, trace clay, large boulders throughout 20- 108" 10 YR 4/4 light brown dense clay Bedrock at 108", strong seeps at 108", No SHWT observed Falling head permeability test completed at 42", no infiltration. TP-23 0-6"Topsoil 6-24" 10 YR 3/3 dark brown silt, trace clay 24-98" 10 YR 4/4 light brown dense clay 98—102" 10 YR 5/2 dark grey fine sand on bedrock Bedrock at 102", strong seeps at 98", no SHWT observed Falling head permeability test completed at 30", no infiltration. TP-24 0-8"Topsoil 6-72" 10 YR 6/6 fine sand, trace silt Bedrock at 72", no SHWT or groundwater observed Infiltration Test completed at 36" FH-24 Trial 1->120 in/hr Trial 2->120 in/hr Trial 3->120 in/hr Trial4->120 in/hr Infiltration rate greater than 120 in/hr TP-25 0-6"Topsoil 6- 12" 10 YR 3/3 Dark brown silt, trace clay 12 -32" 10 YR 4/4 light brown dense clay Bedrock at 32", no SHWT or ground water observed No falling head permeability test completed. TP-26 0-6"Topsoil 6- 16" 10 YR 3/3 Dark brown silt, trace clay 16-36" 10 YR 4/4 light brown dense clay Bedrock at 36", no SHWT or ground water observed No falling head permeability test completed. TP-27 0-6"Topsoil 6-48" 10 YR 3/3 dark brown silt 48—66" 10 YR 4/4 silt trace clay Bedrock at 66", no SHWT or groundwater observed Infiltration Test completed at 30" �. FH-27 � Trial 1-60 in/hr Trial 2-50 in/hr Trial 3-35 in/hr Trial 4-25 in/hr Trial 5-25 in/hr Trial 6- 25 in/hr TP-28 0-6"Topsoil 6-56" 10 YR 4/4 dark brown silty fine sand 56—105" 10 YR 3/3 light brown silt trace clay Bedrock at 105", no SHWT or groundwater observed Infiltration Test completed at 36" FH-28 Trial 1- 10 in/hr Trial 2- 10 in/hr Trial 3-5 in/hr Trial 4-5 in/hr Trial 5-5 in/hr TP-29 0- 10"Topsoil 10-72" 10 YR 4/4 silty sand, trace clay Bedrock at 72", no SHWT or groundwater observed Infiltration Test completed at 36" FH-29 Trial 1-60 in/hr Trial 2-35 in/hr Trial 3-30 in/hr Trial 4-30 in/hr Trial 5-30 in/hr TP-30 0-6"Topsoil 6- 18" 10 YR 4/4 dark brown silt, trace clay 18-30" 10 YR 3/3 light brown clay Bedrock at 30", no SHWT or groundwater observed No Infiltration Test completed TP-31 0-6"Topsoil, large rocks 6-36" 10 YR 4/4 dark brown silt, trace clay Bedrock at 36", no SHWT or groundwater observed No Infiltration Test completed � �� � , � � �� � � � 3gl �6 � %� � ���' % 1°' � � � ,�� � � '� ��� ;� � � � �� � � ��� ���. � , � ��p ���%� �,�p � � ,��0 �'� lR� fN 4-2" � � � � ��� � ' � - �. WHI�E Pll�`� � �, 'S�` � � � � � 3(�" 381 � �38 � � -- ----_—_� � �� � � � �� � fGfr4�a`_zc � � / / i / � � ` � � � ;" �;� . � ,,� ; �� 387 i � � � j" � � � � �� !� � ��� 3�5 � �� ,�� . � �� 4, . '�� /� � , '�i 3� � ps� ., ; � � �, � � ,� / � ; 380 j � � � � ��h � � , , "ii, m, � � TP—27 ,��� � � � � � �� _ � o � � �� '`� �� �� ��'` / � tij6 , / ���� � �g � —� , � � I / j' . oNp — , ►•) � / � ,� � � � �� � r�;_� r� ,ts ���` n.�f � �,,, � ��� � 6� � � � �� 38� � � � � � � '� � , �'� 3g3 � . . � � / 358 359 . /� � / j� / / ..� . � � �, �°� 79 Ar �� � � f��� � 3 � �� a� �� -��/ ' � �� �/ � '� ���% '� �o ��, � �� TP-26 � , ,y , � � � _ � � � � � � � � � � � � � � � -� .,��� � � � ��� �� � �' �� � � � ��� � .' �� 38� ���� M � �� � � So , 3 ' � � ; (( , .�(�sx t'��7 f 3 / � , �0 % � O 'h ' , ;' '- ;���� , '9 � I h� �� � � � � � h � � ����� , � ��� � ! � � r�� � � � � 3�� b /�� TP—28 ' � ' ' � - -�� � TP-25 � a �, � ��� _ � 473 .,.:, .: �s... +9 356 'n...- .,�. � ' � � �. .s 3� 385 w o . � / / � �.. �.. . / , „.y _ , , - �„�.. � ,r � 4 = � � � �;� "�� ���� ;��'s�� 377 � � � � ��s ' � � 4�5 � A " ��, 4' � aoa . %/ � . f_�} � `� 1 382 � ' : � I�.1F �� � � �� �� � / ' � 376 � 383 � _ �-� � -�-, � 3 ,� -� � I 3 3 380 385/ ��> � ���� `''�z � �s � .�. . _ / o.. '��9 � ;?�� � , 3 -t� $6 ,���i�'�`�P vi �x � 4� �,� 5 8R 8 3 3a �m � � � � ��'' � , � � � � � ���(� /� ' �� �rl,�zf'�F � c�� ,��6 ,,— � � �� � � � � � MH Y � , � � � 36„ � �� � � TF=37 95 '►� ���„ M PLE � 5��; 69 �� � . ;� ' �� � �,�1�F'LE I � � � � ��" D� � � _ —_ _ „ 1 � � i > � ��:, � ���i���L� 'S� 'J$ � � t'�th� � \ � ��'f e� �,E�x'f,�. 338 � 9 � ��2�, . os � A�,��L� � � � � a e � a5o s5 ! � /P,� �:%ar � � � � � ��� �s w� 3 " h` � ,�,�'� ,y0'h 45, �� 3�3 � i � � w� e7 MAP�E � ` r� �� � � � � � ^ '� � ��j, \ ^ � �� � � � w ,,s�-1. �� j� � 'S � � I � �. � � w 3g � � �'I6 ��� �'��`�� 3�2 � 'h�0 � � r � °°,., t \ � ��,� � � � TP-29 �� N� 22 �� � � �°°' ,385 ,�8» �� N W UY NIAPLE 316� (� � ( (� � 380 '• OS 303 x � 3 � � ,� � a{� � 1 AP`L� T! :s' ' . �TP-24� e.�. `��� `�'� � 3�5 v� � 304� �� � . I, . � 355 40 � 375 r� ��� 37� � � � � 385 � �w �, �. �:� � � "� � , � 375 � 372 r � i�r � � f `�� � � � �" � ry _ y,� � `�� � � ' i / �'� ��� � � / // , // ��a .�,� ' s _ � I_ ��// � ��TP-23 � � � � � /� 4 a� w � � � � ��� � ��� ��� ��� .. .,. � w� � �O s3 ��� - � �a � � �%�� ������������������������������� g � 4 � 4 _ 'h ,�� �/�� / % � I � sso , � %�/ � / � TP—31 =° � i i / � � TP—30 E,y. �9 � � ,� ��� .� � � �,� / / � .. � �kh 3 .� ,r .............................. � � � � � � � � G 2� �380 � , 372 ° f TP—22 ��� � w ��y � �`�� � � 379 `3� � � 375 �� �,;° lP 15", � � � � � c� a � �' ^ � „ &AR � W� GUY 378 � h � � ��40 � � � �377 � 8 'Q 'Q 'Q d' � � / > `3> 'Q 'Q � � ''� � ,� p 374 / 1 � � �/ � ' e � � "� "'� � �� � � � � � �� � � � � � s Q � � � c�i� 3 js • 377 /� � � � �� 76 � z@ � 4 � Q �� � � 375 �� � �,, ��/ � � ��_ 7 ° � � 3 �� �/� =�a=`' " ; 4 �,� N O �,�? /�/ � .' � � st O � q. .��� TP-21 �' � ° � � � � � � /� . 3 3 w %// �ti' � � � � 3�k �,; T�—�0� � 374 3 3 � _ ��// _���� � � " � �� � �, < " � � � 374 �a" CRIMSON � MAPL E � 7P-2 TP-9 375 � A H � � i�;�,k� � r � E I 3�� � � ' —1 � 371 i 14' �' , � -- _ o MAPLE 12 _ ��� �-----— -- // � 3 TREE Tlr.RPLF � TRf.�c 3 .. 24" � ��� 37p �� I �///�� 3� ; � � ` 377I,. ,;>.IM wHirE � �E�,a�� � p�NE � sPRucE rREE Row �_�°"° _ �. —�� ��.._. s� —�— `•� � ��� NM �`o CON WALK - — . NYT 2 � �� .-- � 28' ��8 OHUL � � � �q �" so� MAPLE — NG 3 � �.o EOP �� '�"" UL � 7 W� NM (2) GUYS ".Cr �" �'A7"ER M W� . . NM 18 � � � �� � wG S � � GUY ,� �Z� � n �� �,� o EOP � n �,5.�,,.. M1 � � e G � � < I r��4PLE �'�j � � �-�'li= x.� J7-.'d. � � � fQ" rsP,4F'��;e � _ t r. � P�AAF'LE 7.�"e'EE , - t i iR�E trVE �,�,� �' � p � � � Th� LA GRQUP Landscape Arcliieecture O.Enqirreerinq P.C. pe�o�,/c,l'u�o�r€.Vl re. =E�1 LC]IlC�7 t11�E'v 5�ralog� Springs NY 12866 p:518-587-€3100 /. 518-58'1-0180 :'�.;t�,rr,,v.11iel�r!rnn� r:om To: Matthew Brobston From: Brett Strom Date 7-8-2020 Subject: Myrtle Street Test Pit Report Today, I conducted 3 test pits and completed 3 falling head permeability tests at 1 Myrtle Street in Saratoga Springs, NY. Test pit locations can be found on the attached map. TP-1 0-6"Topsoil 6-30" 10 YR 3/3 Dark brown silt, large rocks 30-42" 10 YR 6/6 light brown silty sand No SHWT or observed Falling head permeability test completed at 6" FH-1 Trial 1-30 in/hr Trial 2-30 in/hr Trial 3- 20 in/hr Trial 4- 20 in/hr Trial 5- 15 in/hr Trial 6- 15 in/hr Infiltration rate stabilized at 15 in/hr TP-2 0-4"Topsoil 4- 28" 10 YR 3/3 Dark brown silt, large rocks 26-42" 10 YR 6/6 light brown silty sand No SHWT or observed Falling head permeability test completed at 6" �� FH-2 Trial 1-40 in/hr Trial 2-30 in/hr Trial 3-30 in/hr Trial 4- 20 in/hr Trial 5- 20 in/hr Trial 6-20 in/hr Infiltration rate stabilized at 20 in/hr TP-3 0-6"Topsoil 6-36" 10 YR 3/3 Dark brown silt, large rocks 36-42" 10 YR 6/6 light brown silty sand No SHWT or observed Falling head permeability test completed at 6" FH-2 Trial 1-30 in/hr Trial 2- 25 in/hr Trial 3- 25 in/hr Trial 4- 20 in/hr Trial 5- 20 in/hr Trial 6-20 in/hr Infiltration rate stabilized at 20 in/hr � �� � , � � �� � � � 3gl �6 � %� � ���' % 1°' � � � ,�� � � '� ��� ;� � � � �� � � ��� ���. � , � ��p ���%� �,�p � � ,��0 �'� lR� fN 4-2" � � � � ��� � ' � — �. WHI�E Pll�`� � �, ,y� / � � � � ,3t�°° 381 �� �� � � -- ------_ � � � � � �� � fGfr4�a`_zc � d � � � i � � � , � .387 %' ,. � �.. ( 0 � � � � �� � ��� 3�5 � � ,�� � 4, �� �� � � , �'' � � 3� � � � h � � ���� �% �� � � � � � � m, � � 3so � � �, , � � � � '�� % � , �� � � ` � TP-27 ,� '�� � � tij6� �, /� !� � � � —� �� � / g � �1 � �� / , ►•� � j / � � r��. � � �.,, � � � � � �<�. '� ,� !�d` n.�f : � � �6� � �0 382 � � , ��� 3g3 . . � . . � � / 358 359 . /� � / j� / / � � ' �, �9 k / 3 � �s a°'� � '�''��%� � � , / � � � �� � � � � � ��� �� ,��o ���, , / � TP-26 � � � � � � � � � � h �� � � �'` ��� � � � � � �� �� � � � � � �- / ���, M�� ��� � � � � �� � S 38� � � �� , 3 � �� � � �� � � � � - / � ii�� � .�r�>F .��t� / 0 / � O ; �/ 3 � � �� ����/ �j� . � .. � . . •������• h� � �9 � � � � � . � h � � � � ` � 46 � �� ! � 3�9 b % TP—28 _ ,� $5 � 4�3 ^ TP—2 5 3�a as� 356 , � / " 3 e w�fo <_ �.: / _— , % , p �.�� � � � �' � � "�� �� ,� 377 � � _� ��s � � 4�5 ��/ � .L�Y..;� 2 L � �k 11 � aoa . �/ , . . �f_� f;� 1. 382 � ' : � I�.1F � � i ' � � 376 � 383 �3 � _ �� � � � �� � � �3 380 385/ �. � �'�'� 4+ � 375 � �`t�z �. � �g 4 �� �� � � �1 �,�/ // � 3 -�'� .� 386 ����'��=� �' � �� � � x 4� � �5 �� y 8R 8 3a / �m � � / ; ^h � ���(� /�� � �rl,�f'�.F c�� ,��6 ,— �- � �� � � � � MH Y � , � � � 36„ � �� � � TF=37 95 '►� ���„ M PLE � 5��; 69 �� � . ;� ' �� � �,�1�F'LE I � � � � ��" D� � � _ —_ _ „ 1 � � i > � ��:, � ���i���L� 'S� 'J$ � � t'�th� � \ � ��'f e� �,E�x'f,�. 338 � 9 � ��2�, . os � A�,��L� � � � � a e � a5o s5 ! � /P,� �:%ar � � � � � ��� �s w� 3 „ h` � ��,�� ,��'h 45, �� 3�3 � i � '� � ,� � 8� MAP�E ��bp � ` � �� ,�� � � _� ��� � ���r��� � � � �y � i � � � � w ' � % �, 38 � ��6 0 / / / \ ��; r3;h 372 � 'h� � — w � � TP 29 � � 3es w� �Y ,�8�� � 3,6 a�� � � (� ( M'APLE — � ,s$0 '• OS 303 � �� } � 1 APL� $2 .s' � � � � � TP-24 � .� `��, � � ��"� � 3�5 � �j v� � 304� �� � . . . I� .. � 355 40 � 3�"' r� ��� 37� � � � �� 385 � � �w �, �. �:�� � i � � �/ � � ��, c�, � � , � 375 � � 372 ',='s y,��� �� Z � � \ I / �� ., � � // ��� �'�'�� TP—23 5 — - — ���/ 302 � 1 I %% /� w � �,�g \ ^�� 0� /�%/ � � w� � O 83 �^ � a � � �/��/ � ������������������������������ � � � 4 � 4 "' �'� ^�� ,��� ���� j / / � , �� sso _ � � %�/ � / TP—3 0 9 TP 31 ��� �,� %�i� / / 3' - ;r ............................../ � � �380 � TP-22 � � � � 2� � � 3�z w ��� � � 379 `3� � � 375 lP 15", � � � � � c� a � �' ^ � „ &AR � W� GUY 378 � h � � ��40 � � � �377 � 8 'Q 'Q 'Q d' � � / > `3> 'Q 'Q � � ''� � ,� p 374 / 1 � � � �'/ � � �, . : �/ F � � � � �z� � Z « � �� � � . � � Q � � � � � • 377 — � Q3j6 �`*�� � � � � �� � 76 . � 4 ��`.� �� � 375 ` � ��.� �� � ��� �� o � � '� � / 74 � � 3 ` r� /� � � �, N O • � � A � � � q, � � ��� TP—21 � � `�x � �� � h � � -� � 3p� ��- �p_3 � �/ � 3 3 . w �' � 3 k %� � r T�—�0 � 374 3 3 � _ b� " �� N °=t.�-��,� � 78„ � � � � 1� 374 ���, CRIMSON �, ��� MAPL E � 7P-2 0 TP-9 375 � A H � � L�;�,kr r � E I 3�� � � ' —1 � 371 i 14' �' , � -- _ o MAPLE 12 _ ��� �-----— -- // � 3 TREE Tlr.RPLF � TRf.�c 3 .. 24" � ��� 37p �� I �///�� 3� ; � � ` 377I,. ,;>.IM wHirE � �E�,a�� � p�NE � sPRucE rREE Row �_�°"° _ �. —�� ��.._. s� —�— `•� � ��� NM �`o CON WALK - — . NYT 2 � �� .-- � 28' ��8 OHUL � � � �q �" so� MAPLE — NG 3 � �.o EOP �� '�"" UL � 7 W� NM (2) GUYS ".Cr �" �'A7"ER M W� . . NM 18 � � � �� � wG S � � GUY ,� �Z� � n �� �,� o EOP � n �,5.�,,.. M1 � � e G � � < I r��4PLE �'�j � � �-�'li= x.� J7-.'d. � � � fQ" rsP,4F'��;e � _ t r. � P�AAF'LE 7.�"e'EE , - t i iR�E trVE �,�,� �' � p � � z , ��� �� � �����f�l������,���1����� � �- o �, , � _ � - , � �-- � z � � _ , � � I .� �� � U � � 0 � s�� u. z Z � � h _ �(r�j �} ., � a � 96 N �ry� ��1I � � � � V � V � � � a fl � Q � � Oa � .� o �, � = � - - - --., . =; J t'J � V � �€ � � - Q � �` m V - � ��� � �; _ ,� i �' h aC H Q � � ^ , �, ��. . , g��' ' " "' -- -- O � C!'1 OC N 0 , > f_ . _ -.� �- �- y� e c� 6L'�'a���-�-�-"�!�'��� _�.�1�'J�. � rq �--- C � � � L�`P W � ; �'"� --- —�` i I °' �C O w � Q Q 'Q a y� " � , ��' � '- '' �- I� � V 2 p � ' �' � , - � �- 0¢C � � [!� 8 ' � I � � � � o� - _ � d ,,, a o0 � " U � a a Q I � � �, �, ,� o �� � � d V� �• oo � ) OQQ ' � - 4 �- � a ^ �, � - F- pC - - �_ � , d c' a � �"7 Vl 5� N� C+l U u7 n.. I L'E LL 1� W � � w � x r � � Q�� h,__ � o a �I "s � _ — _, x � ,� `_'`�-� Q Q h ���, - �' - II '. C� � ,.. � � �.'__ �h� � �i�_1 fl [� -: n __ � � J � - '� �' N C[ �' � E� � m � -- � !— � a� i� u:� x r - r� n (\ � i� {� � � � ��. � w � a � � � "' k� x� �� , � _ tlL ,p� — c,; Q I� - �'I �c g � ,;�I w CG ` a,n _ (3 ^ � V � � � d. — 7^ \ � °' p- ^ II- � II �-� J � cL: �n 4I1 ^� — w �ll � _ c_I , I ^ i CL. � � j � � � P� — � �- i W` , � m � � -- _�� - - -- ' �-- q� O _ � � - 00 � 1 M�`� -� I �� � � � _ � � C�I � ,� Q �O ; � _ _--- - -- -- - - - - � ��' � OC C[ r'-I m i � "7 � _ ---- � I ` �� � � z � � 0. O 0 +� � - — t0 `� a F � J ~ � � �C � Od � + � ���� � � � � � , q fuJ � 4) �� , �f�� � :=" � � L1! 11"1 i--� � a�o ��� � � � � L�C.! • � � r� �. � / / � � � � Z � � ¢ � � � � � � � / � " _ � INTERPRETA710N QF SUBSl9RFACE LOGS The SubsurFace Logs present obser�ations and#he resvlts of tests performed in the field hy the Driller,Technicians,Gealogists and Geotechnical Engineers as nated. SaillRock Ciassifications are made visuaily,unless atherwise nated,on a partion of the msterials recovereci through Ehe samp�ing pracess and may nof necessarily be representative of the materials beiween sampling intervals nr locations. The following�defines some of the terens utilized in the preparatfan of the SubsurFaca Logs. 5Q1L CLAS5IFICATION5 Sail Classi#icaY+ons are visuaE descriptions on the basis of the Unified Soi!Classification ASTM C3-24$7 and USBR,1973 with add�tianal comments by weight af constit�ents by BUHRMASTER. The sail density nr consistency is based on the penetration resiskance determined by ASTM METHOD a4586. Soil Moisture of the reeo�ered rr�aterials is deseribed as DRY,EVIOIST,UVET mr SATURATED. SI�E DESCRIPTIQN RELATIVE DENSITYIGONSISTi ENCY basis ASTM d'V5$6 SOIL TYPE PARTICLE SIZ� GF7ANULAR SOIL CpNESkVE�OfL BOIJLdER > 12 f?�NSI�`( BLOWSIfT. CONSISTEf�CY BLOW5IFT. COBBLE 3"-12" L005� < 14 WERY SbFT � 3 GRAVEL-��ARSE 3" -3!4" FIRM 19 - 30 SOFT 4 - 5 GF2AV�L - FjNE 314" - #4 COMPACl" 31 - 50 MEDIUM 6 - 15 SAl�D-Ct7ARSE #4 - #10 VERY GOMPAGT 50+ SfifFf 16 - 25 SAt�D-MEDIIJM #14 - #4a HAaQ 25 + SAND-FINE #44 - #200 SILTINONPLASTIC � #200 CLAYIPIASTIC � #24� SOIL S7f2liCTURE RELATIVE PROPORTIQN Q�50�L TY�ES STRUCTl1RE �ESCRIPTION DESCRiPTION °10 CJF SAMPLE SY{lVEEGHT LAYER 6"THICK 4R GREATER AND 35 - 50 SEANi 6"TH1ClC dR LESS 50ME 20 - 35 PARTING LESS T'FIAN 114"TFftCK LITTLE 14 - 20 VARVE� UNIFQR6Ul 1-1ORIZOIVTAL TF2ACE LESS�t'!-1APl 10 PARTINGS OFt SEAMS Note that the classification of soiYs or soil fike materials is subject to the limita#ians iinposed by the size of the sampler,the size of the sample and its degree of disturbance and rnoisture. ROCK CLAS51fICAT10NS Rock Classifcations are visual descriptions on the 6asis of tt�e Drilaer's, Te�hnician's, Ge€�IogssYs or Geotechnical Engineer's observations of the cor�ng activiEy and the recovered samples app6ying the following c[assificatipns. GLASSlFICATIOE� TERM �ESCFtIPTION VERY HARD NOT SCRATC!-I�D BY KNIFE I-EARD SCRATCHED tNITH DIFFICULTY ME�I�JM HARD SCRATCHED EASILY �p� SCRA`I`CFIE[7 WITH FINGERNAIL VEFiY WEATHEf2ED DISIIVTi EGRATED WITH NUMEROUS SOIt SEAM UVEATHERED SLIGHT DISiNTEGRATIC}N,STA1N11V�G,NO SEAMB SOUND N� EVIDE'NCE OF AB(3VE MASSIVE ROCK LAYER GREATER TI-1AN 36"THICK THICK BEDDED F20CK lJ�YER 12"-36" BE�dE� ROCK LAYER 4"-12" THIN BE�DEQ R�CK LAY�R 1"-4" LAMINATED ROCK LAY�R LESS THAIV 1" F�p���}��S NAT4JRAI�E3RE,4K5 AT SOME A[�Gi�Tfl BEDS Core sarreple recovery is expressed as percent recovered af totaf sampled. The RQCK QUALITY�DESiGNA7101V(R(2D)is the total length of cc�re s�mple pieces exceeding 4"length divided by the tatal core sample length for N si2e cased. GENERNL r Soik and Rock cEassifications are made visual6y on samples recovered. The presence of Gravel,GobbEes an[E Baulders wi�l influence sample recovery classification density/consistency determination. • Groundwater,ifi encountered,was measured and its depfh reeorcfed at the time and under the conditi�ns as noted. + Tapsoil or pavements,if presen#,were measured and recorded at the time and under the conditions as nated. • Stratification Lrnes are approximate boundaries between soil typ�s. These transitions may be gradual ordiscinct and are approximated. DENTE EIVGrNEEF�.ING TEST PIT F1ELD LOG I'RC}JECT: Saratoga Hospitap MOB NUMBER: TP-1 LQCATIf)N: Morgan Street-Sarataga Springs, NY FILE NO. FD�-15-260 C�NTRACTOR: Bonacia DATE: 12-3-15 MAK�: Komatsu MQDEL: PG27MR (mini} ENGINEER. J.Robichaud, P.E. WEA`fH�R: O�ercast CAPACITI': ±1/4 yd3 BOOM REACH; ± 10' GROlJND LEVEL: 375�13` TIME START: NIA TIME S�'O€�: NfA DEPTH SOIL �ESCRIPTION �xcnvaT�ar� eou��ea e��o�xr couNr *4"TOPSOI L E '[' Brown 51LT, LittEe F-C Sand (MOf57) E 2' M-D 3' C] 4' End of test pik at 2.�'to 4.�1'cCepth below ground surFace with 5' practical excavator bucket refusaf or�top of becfrack. 6' 7' �la measurable ground water sncountered during exca�ation. 8' 9' Bedrock encaunkered at ele�atian 372.85' (2.3' depth}throughout �a� majority of test exca�atian. '11' 12' 21" ta 24"wicEe solufion cavity encauntered within test excavatfan_ 13` Bottom af ca�ity surrreyed at ele�ation 379.07' (4.1' depth). 14` 1�' Surveyor provided top of rock elevations in this test pit. Rert�arics: Graund surface clevation provided by surveyor. 80L1LDER COEINT ABBREVEATIOAfS EX+CAVATIOM��F(}RT sEZER,an�ce LETT'ER F=�w� EASY.........................E CLASSIFlCAT10N DESIGIdA'fION M=ME.I�IPJM C=COARS� MO�E#tATE..............M B"-1$" A �_M�FIh1E TO M�OILIM F=C=FIN£TO CaARSE '18"-38" g Ght=GRAY DIFFICULT...... .[3 BN=BROWN ......... 36"&OYER C YEt=YELLOW D��TE ENGI�iEERI�IG TEST PIT FIELD LQG PR�JECT: Saratoga Hospital M�'� NUM6ER; TP-2 LOCATIOfV: Morgan Street-Saratoga Springs, NY FILE NO. FDE-15-260 C�NTRACTOR: Bonacio DATE: 12-3-15 MAKE: Komatsu MODEL: PC27MR (mini) ENGIIVEER: J.Robichaud, P.E_ WEATHER: OWereast CAPAGITY: ±1/4 yd3 BOOM REACH: ± 1fl' GROUND LEVEL; ± 376_5' TIM� START: NIA TIME STOP: NIA DEPTH SOIL �ESCRlPTION EXCAVATION 9flf1LDER � EF�ORT COUIJT Soils�xeavated at this location were pre�iously disturbed �y others. E 9' E-D �y �nd of t�st pit at 1.5' depth below ground surface with practica! 3' excavatar bucket refusal an top of bedrack alao�t ele�ation � 374.9' �� — 5' No measurable ground water encountereci during excavation. 6' 7' Excawation was advanced at lacatian pre�iously excavated by 8" others ta determine depth to bedrock surface. 9' 1 U' 91" 12' 13' 14' 15' Remarks: Ground surFace eleuation int�r�olateci from site grading plan pro�ided td us. BOI�LDER COUNT ABBR�VIATfOfJS EXCAVATION EFfORT s�z�Ran��� LETfER �=Ft�l� EASY..................... E CLASSjFICAT16iU 6ESIGMATION �=MEUIUM +••• C=GDARSE 6"-18" A F-M=FWE TO ArtEUIUM MUDERATE..............INI F-C=�ih1E TO CiOARSE 18"-36" B GR=GFtAY DIFFICUL7................D BN=BROWN 36"&OV��t C YEL=YELi.f}W DENTE ��IGI�IEERING TEST PIT FIELD LOG PRQ.JEGT: Saratoga Hospital MOB NUMBER: TP-3 LOCA710N: Morgan Street-Saratoga Springs, NY FILE 'NO. FDE-�5-260 G�NTRACTOR: Bonac�o DA�E: �2-3-15 MAKE: Komatsu MODEL: PC27MR (mini) ENGIMEER: ,�.Rabichaud, P.E. WEATH�R: O�ercast CAPACITY: ±1I4 yd3 BO�M R�ACH: ± 1Q' GROUND LEV�L: 375.57` * TIME START: NfA TIME STOP: NIA DEPTH SOIL QESCRlPTID'PJ EKCAVATI{1N eou�oEr� EFFORT COUNT +�"TC3PSC71L E 1" FIL.L: Dark B�own SILT, L"[ttle �'-C Sar�ti w�th cobbles, metal pipe, M 2' asphalt, and A 1 B si�ed rocic'fragrnents(MC?IST) � 3' - - -- - - - - - - - - - - - � - - - -- - - - Brown SIL7, Liitle F-C 5and wikh occasior�al cobbles note� (MOIS7) M 4' D 5' End of test pit at 4.9' depkh below ground surface with 6' practical exca�ator bucket retusal on top of bedrack(el. 37Q.7') 7' 8' EVo mea5urable graund water encountered during excavatian. 9' 10' 8�drock surtace ger�erally level through Eimits af test excavakion. 11' 12' �xcavati�n was campketed appraximately �0` south of staked and 13' surueyed building cornef. * Ground surface eie�a#ion shown is 14' approximate as the bench mark elevation was transferred by 15` Bonacio and Dente r�presentatives to the actua! exca�ation lo�atian. Remarks: Geound surface elevation prvvided by suruey4r. Bedrack e�eva#ions shQwn rneasured fram sunrey stake adjacent test�it exea�atian and shauid be considered approximate. BOULdER COU�1T ABBREVIATIONS EXCAVATIQN EFFOR7 SIZE RANGE LETTER F=FINE EASY............. ....E CLASSIFICAT{ON DESEGNA710N ��� ��.� M=MEDIUM C=CbAl2SE $"-18" A F-M=fINE Tfl MEQfUM ���ERAT£..............M �-C=FINE TO CC7ARSE 'k8"-36" g GR=GRAY ❑IF�I�UL'�................D BN=BRQWN 36"&flVER C YEL=YELLOW DENTE ENGI�JEERING TEST PIT FfELD LOG PROJEGT: Saratoga Hos�ita� MOB NUMB�R: TP-4 LOCA�'If3N: Morgan Street-Saratoga Springs, NY �ILE NO. F[��-�5-260 GONTRACTOR: Banacio DATE: 1�-3-�5 MAKE: Komatsu M�DEL: PC27MR {mini) ENGINEER: J.Robichaud, P.E. WEA7HER: Qvercast CAM�ACITY: ±1l4 yci3 BO�M REACH: ± 10' GROUND LEV'�L. 374.01' TIME START: I�IA TIME ST4P: f�lA DEPTH SOIL'DESCRIPTION EXCAVATIOlV BOULDER EFFORT COUNT +4"TOPSOI L E 1' FILL.: Dark Brow� SILT, Little F-C Sar�d with eab�lelrack fragments �-D 2� - - - - - J- - - - - - - - - - � - - - - -- - Brawn SILT, Lit�le F-C Sand vuith cabbfes noted (M0157) � 3' 4' End of test pit at 1.5' to 2.5' depth below ground sur�aee with 5' practical exca�atar bucl�et refusal an to� of bedrock. B' 7' No measurable grvund water encounterer� during exca�atian. $` 9' Bedrock encountered at ele�atian 372.5' (9.5' depth}throughout 1 U' majority of test exca�atian. 11' 1�' ±9"wide salutian cavify encountered within test exca�ation. 13' Bottom of ca�ity measured at ele�ation 371.6' (2.5' depth). "�4' 'I 5' Ren'9arks: Ground surface elevation prov�ded by sunreyor. Bedrock elevatians shown measur�d from survey stake adjacent test pit exca�ation and should be considered approximate. BOULUER CQt1NT ABBREVIATIONS �XCAVATION E�FORT SIZE RANGE LE1�ER �=Flh1E EASY.........................E CLASSIFICATION dESIGNATION M=M�DIUM C=COARSE IV�ODERP►TE..............M 6"-1$" A F-M=FYNE TO MEDIUIIA F-C=FM�T�Cf)ARSE �s'"-36°' B GR=�R,4� DIFFIGULT................� BN=BROWN 36"&OV�R � YEL=YELLaW DENTE ENGINEERING TEST PlT FIEt�Q LOG PROJECT: Saratoga Hospital MOB NUMBER; TP-5 LOCATiON: Morgan Street-Saratoga 5prings, NY FI�E N0, FDE-15-260 CONTRACTOR. BonaGio C]AT�: 12-3-�5 MAKE; Komatsu MODEL: PC27MR (mini) ENGINEER: ,7.Rabichaud, P.�. WEATHER: Ouercast CAPACITY: ±114 yd3 BQQM REACF�: } 10' GRQUND �EVEL: 373.16' TIME STAR`�: NIA TIME STOP: N/A DEPTH SOIL DE3CRIPTI01� EXCAVAl70M eou��eR EFFdRT C4UMT ±4" TOPSOIL E 1' Brown SILT, �ittle F-C Sand with cobbles noted (MOIST) E-D 2' Q 3' D 4' End af test pit a#Q.8'ta 3.4'dep#h befow grounci surface with 5' p�actical exca�ator bucket refusal on to�, of bedrocic. 6' 7' No measurable ground water encountered durir�g excavatiora. 8' 9' Bedrock encountered at elevation 372.4' (Q.8' depth)throughout 10' majority of test excavatian. 1'I' 12' Solution ca�ity encountered wit�Fn test exca�atiorr, narth east corner. 13' Bottom of cavity surveyed at ele�ation 369.8' {3.4' c�epth}. 14' 15� Surveyor provided top of rack el�vations in this test pit. Rem�rk5: Graund surface elevativn pra�rided by surveyor. Bl7ULDER C0131�iT ABBREVIATIONS EXCAVATION EFF�RT SIZE f2ANGE L�TTER F=FINE EASY.........................E CLASSIFECATION DESIGlVATIQN �=ry��DIURA C=CQARSE 6"-18" A F-M=FIN�TO NfEDILiM MQDERAT�..............M F-C=FIN�7(7 COARSE '$"-��" B GR=GRAY DIFFICULT...... ......,...[) BN=BROWN 36"&flVER C Y�L=YELLOW DENTE ENGINEERING TEST PlT FIEL� L�G PROJECT: Saratag� Haspital MOB NllMSER: TP-6 LOCATtON: Morgan �treet-Saratoga Springs, NY FI�E NO. FQE-�5-26U CON7FtAC70R. Bonacio �ATE: 'E2-3-15 MAKE: Komatsu MODEL: PC27MR (mint) �NGlNEER: J.Rabichaud, P.E. W�A7HER: O+rercast CAI�ACiTY: ±114 ycC3 BO�M REACM: �* 10' GROUN� LEVEL: 373.18' TIME ST'ART: NIA TIME STOPr NIA DEPTH SOIL DESCRIPTI4N EXCAVA'f�ON BOULQER EFFORT COUNT ± 8"70f'SOI L E 7' Brown SILT and F-C SAN�, Little Gravel (MO1ST) '�-D 2' D 3' D 4' End of fest pit at 1.8' to 3.2' depth belaw grnund sur#ace with 5' prac#ical excaUator bucket refusal on top of bedrock. 6' 7' No measurable ground water encauntered durirrg exca�ation. S' 9' Bedrock encountered at elevation 37�.4' (1_8'depth}, 370.3' {2.9' 1 Q' depth) and 370.0' t32' depth)within lirnits of exca�atian. ' 'I 1' 12' '13' 14' 15' Remarks: Graund sutface�levation provided by surveyor. Bedrock e�evations shown rrieasured frflm survey stake�djacent test p3#excavatian and should be considered approximat�. BQULD�F2 CpIJNT ABBREVIATIONS EXCAVATf01J EFFORT SIZE RANGE LE1T�R F=FfNE EASY.........................E GLASSIFICATiON DESIGRlATION �='�,(�EDIUM C=COARSE 6"-'1$" A F-M=F{NE TQ MEDIUM MODERP►TE..............M F-C=FINE TD COARSE �s"-3s" B GR=GRAY UlFFlCULT................D BN=S�tOWfV 36"&OVER C YEL=YELLOW DE[VTE ENGlNEERING TEST PfT FlE�D LQG PROJECT: Saratoga Hospi#al MOB WUMBER: �'P-7 LC}CATfON: Morga� Street-Saratoga Springs, NY FILE NO. FC�E-�5-260 CONTRACTOR: Bonac+o E]ATE: 12-3-15 MAK�: Kamatsu MODEL: PC27MR {mini) �NGINEER: 9.Robichaud, P.E. WEATHER: Overcast CAPACiTY: +114 yd3 �ODM REACH: ± 10' GROIJNQ LEVEL: 372.73' TIME $TART: NIA TINEE STOP: NIA DEPTH SOIL DESCrRIPTION EXCAVATION BOIJL�ER EFFORT COUhJT ± 6"TOPSOIL E 1' Brown S�LT, Little F-C Sand to±16"depth (M�IS7y E 2' Grades Brown 51LT, trace fine sand {MOIST) E 3' E-D 4� - End a�test�it at 4' depth beEow ground surface with �ractical 5' exca�atar bucket refusaE on top of bedrock (eievation �68.71'). €' 7' Bedrock surFace generally level through limits+�f excavation. 8' 9' !Vo measurable ground water encountered du�ing exca�ation. 10' 11' 12' 13' 14� 't 5' Remarks: Ground surface elevation provi�ed by surveyor. Bedrack eievations shown measured irom survey stake acljacent test pit excavation and shpuld be considered approximate. BOULCIER CflUNT ABBREWIATIONS �XCAVATION EFfORT SIZE RAM1tGE LETTER F=FINE EASY......�......... CLASSI�ICATION DESIGNATION �=ry��DIUM •��•aR�.. C=COARSE MODERATE..............M s"-18�� A F-M�F��IE TO MEDMUM F-C=FINE TO COARSE �a"-3�" e �R=��av CIEFFICULT................Q BN=BROWN 36"&OVER C YEL=YELLOW DE�1TE ENGI�JEEF�IIVG TEST PIT FIELD LOG PRQJECT: Saratoga Hospital MQB NUM6ER: TP-S �OCATION: Morgan Street-Saratoga Springs, f�Y F�LE N�. FDE-15-260 CONTRACTOR: Banacbo DATE: 12-3-15 MAKE: Kamatsu MODEL: PC27MR (mini} EI�GINEER: J.Robichauc�, P.E. WEATHER: dve�cast CAPACITY: ±�f4 yd3 BOOM REAGH: ± 10' GR�UND L�V�L: 372.56" TIfVI� S7ART; NIA TiME STOP: NIA dEPTH SOfL DESCRIPTION exc,avanoN BDULDER EFFOR7 CpUNT ±4"TOPSC}IL E 1' FILL: Da�k Brown SILT, Little F-C Sand with cobbles, bricks, roats M �� � ..T - - - - - - - - - - - - - - - - - - - - - Brown �-C SAND, Some Silt, trace gravel (MOIST) E 3' • — — — — — — — — — — — � — — — — — — — — — — — E 4' Brown SILI', Little F-G Sand (M41STy � 5' � 6' �nd of test pit at 5.3' depth below ground sur€ac�with practicaf 7' excavator bucket refusal on top of bedr�ck{�levatian 367.3'). 8" 9' Bedrack surtace generally lewe! through limits of�xcavation. 10° 1'I' No mea�urable ground water encoun�ered during �xcaVatibn. 12' 13' 74" 15' Remarks: Ground surface elevation provided�y surveyor. Bedrock efe�ations shown measured fram survey stake adjacent test pit�xca�ation and shauld t�e considered approximate. BOI�LDER COUNT AB6REVIATIOlVS EXCAVA710N E�FpRT SIZE RANGE LETT�R F=FINE EASY.........................E CLASSiFICATEON DESIGNATIdN M=MEDIUM C=CbA(2SE ���-'�$`� A F-flA=FINE TO MEaIUM MC3DERAT�..............� F-C=FINE TO COARSE 1 B"-36" B GR=GRAY DIFFIGULT..,.. ...Q .....,.. BN=BROWI+! 36"&OVER C YEL=YELL01fV DENTE E�VGINEERl�1G TEST PIT F[ELD LOG PROJECT: Sara#oga Hospital MOB NUMBER: TP-9 LOCATIaN: Morgan Street-5ar�toga Springs, NY FiL� NO. FD�-15-260 CONTRACTQR: �onacio DATE: 12-3-'f 5 MAKE: Komatsu MODEL: PC27MR {m�ni) �NGtNEER: ,1.Robich�ud, P_E. WEATHER: Overcast CAPACITY: ±'f14 yd3 BOOM REACH: �- 1Q' GROUND LEVEL: 372.35' TIME START: NfA TIME ST�OP: �ilA DEPTH S�IL �ESCRIPTION EXCAVATkON BOLJLDER �FFaRT COUNT ±4" TOP5011. E 1' FILL: �ark Brown 51LT, Lfttle �-C Sand wikh cobbles, bricks, r�dts, D 2' A and B sized rock boulders, cut branc�es, metal pipe D 3' ¢� - - - - - - - - - - - - - - - - - - -- - - - y _ _ _ _ _ _ - - - - - - _ _ p Brown SILT, Little F�C Sand (MdIST� � 5' D G' End of test pit at 4.7' to 5.2' depth belr�w ground surface with 7' practical excavator buck�t refusal on top of bedrock (elevatian 8' 367.7'to 367.2'). 9' 10' Ground water observed slowly entering ex�avation at 3.5'ta 11' 4' depth belaw g�ound surface (fill 1 native sai� �nterface). 12" 13' 14' 15' RemafkS: Ground surface elevation provided by surveyar. 8edrock elevations shown measured frorn survey stak�adjacent test pit excavatior� and should be consideted appraximate. BQULDER COUNT ABBREVIATION& EXCAVAT[Q�1 EFFORT SlZE RANGE LETT�R F=FII�3E �ASY.........................E CLASSIFICATION �ESIGNATIQN M=MEDIU�41! C=CQARS� 6"-1$" A F-M=�INE TO MEDiUM MODERA�E..............M F-C=FIIVE Tp CQARSE 18"-36" g GR=GRAY DIFFIGULT................Q BN=BROWNE 36"8 OV!ER � YEL-YELLOW Attachment B Existing Conditions Watershed Map and HydroCAD Calculations / i ♦ � � �/ G � . The LA GROUP ' LEG E N D Landscape Architecture&Engineering P.C. � � PeopCe.Purpose.Place. �' 40 Long Alley p: 518-587-8100 / � � � � � SUBCATCHMENT BOUNDARY Saratoga Springs �518-587-0180 NY 12866 www.thelagroup.com OSUBCATCHMENTID Unauthorized alteration or addition to this � � TIME OF CONCENTRATION PATH document is a violation of Section 7209 of the 0 New York State Education Law. � � ` ANALYSIS POINT �O the LA Group 2020 � A - 1 / � / P�epared for.� / ' � , Saratoga Hospital ♦ 211 Church Street / �� � � Saratoga Springs, New York 12866 �� � � a% �. i , . \ � A �� A P — 5 % `. .� . �� _ � — � . � � — =_ � � � � . � � / � i ■ � , �,, � , �, 4 � ; ; � ��� _ � • � , � • � � � , ., � � � �,, ; ' / � A P — 4 ��� � ,. • ���, � ' �— — �. � �;,.,, � �,, �, � �� � ti,� �, �� ' • � C� . .� , ��� y •�' ��� � �� � ,� � o � � � � a � ,•� � . _� ,� a ,� ti,, ,� . n � ,, . •• � � • \� AP — 2 � � C` �CJ Pro ect Title: � � � C� J �� _ _ _ _ , , �. � 2 � Myrtle Street �� . . . . • '� � ♦ C Medical Office , -, / r � ' � , �--�- � (_ � � / �•� � �� � Campus //� / , o ��• ■ �� � ■ ��/ � / � —' .�� � , � � 55 Myrtle Street �� � / � / r� � ♦ � ♦ � 1 & 17 Morgan Street � � / /� I �1 � � ' . ' ' � Saratoga Springs, NY 12886 % � � a 1 ^`� 1� ♦ �:'' � ', � I / i ��—��—J � \ � • � � � /i� � �-L � �--- ---�� � • � � , � �'�/ I/1���� � � ✓�� 3 �, t / � /�e / /� �-�� � • • �/ /% / � _ ,'~� �♦ ` �� ♦ ■ � � � ` � : � �- f � � j� � / ♦i � I (�� i � �� ' �� �� �----, , / � �/ � / / � \ �--� � �� � ■ � � ' � t � '. � • � � / � � ,� _ , . �/ /� / 1 v ' � l �� \� �����` S ---� � • � �` � �� � � I � \ ��, ` � � � � � I � �— ♦ `� o � � � � Bcs // �/ / J l � � 1 i � Project No.: �c 20�rt�,�� � // / � / � � ` � 11 � � Design: ���mn 1„_�n� � , �� � , � � / �� , _` 5 � � Drawn: Ch'k'd: / � \ �� i 3 � / � / / � ` _ /f �� � � � � • � i i � Date: Scale: � --- � � � � � �,�// / / / � /� \ �� � \ ��� �\ / ,��� \\ "---- � / / � � L_� � \ � / � � � Rev: Description: Date: a / � � / i �. �, � � � ��—_ —_----� I 1 \ � � . o � � � � \\ �\ ---- / 1 1 �� ` � � �: � / �\ 1 � �� � -- � `� � \ � � / � / � _ / / � / / ��� __ ���Q //��---��`--� �---�`� �-> � ti'' � � � 1 50 0 10 20 30 40 50 N / / /� / / � \ ` \� ` 7� �r ���__/�/ �.\ // �'/\�—r O � I , �N / � /✓ �—� � �—�—� \ 'if � �/ / � / �—� �\�/ `_ _------� \ � / / � ' � � Scale: 1" = 30' �� // / / / � \ \\\ \'// ' �/ / `— �/�� \ �� — 73 � II " 1 / , 1 � � ' �4 3 � / � // / \ � \\ // ` / / \^ / ' 3 N � � � / r-_ _�__�( � � / 1 372 i ' �3 M � s�a Drawinq Tifle ¢� ���� C_ ,`L �� � � � � /�� � r^, 3 a � �\ __�, �—;��--� �, j � �� ♦ �� --- "' '� �3�5 � ■ Plannin Board # xx.xxx Existing Conditions ' � ��� � �� ��� —�� / I 3 � � � J � g �- � �= � �� 1 ` � 72 3� � A roval o �� � ;�? � _ _� �� � pl� Watershed Map � ``�= / / ' 377 o� �`——J O 376 � �J> I � �__ __ � ^ �j 3,0 3�5 � Approved under authority of a resolution adopted , —� / ;rTr��_ � ��—— � � � ' `� `� � � � by the Planning Board of the City of Saratoga Springs. �v� � A � � ��� K � � / —1 �� � � � � � ,�y8 �a� � ,� � � J \ y � � D�a winq No. �N � ` d'O� � / 7�t I �/ / / � � `\ 1 — — N �N� ��/�/ I ,� � / r \ ,� E�P � � � Chairperson �� ' / � � � � � � � � � � � � � � � � w o a` / ', I I I / / � \ � � ' _ - _ �� � � � � � � � N A m�� � I � , �—� �. . . . •��• - • • -, �� �� qP — � � o �� >.�i ui I ,�� . � � 3� EOP � � ri•+ .� 9 ���` Y Y i m m E p I I I 3�l ,ld G 37� `' �o � � \ , � Date Signed: o �Z I l.� I I / / �`\\ `;,3 � /� 6$ "J � � � , � � � �� P _ 3 acnii \ � (, I I � I �/ —,3�.\\\�\�� � % �����i ;AP-5 AP-5 AP-4 ( 6 ) �� AP-4 Subcat 6 � Subcat 4 03 (� AP-2 S bcat 3 Subcat 2 Existing Pond V Sub at 1 a Subcat 5 �AP� AP-1� � AP-3 AP-1 ��^ Subcat Reach on Llnk Routing Diagram for 201517 Pre Development Prepared by The LA Group, Printed 7/22/2021 '- ` HydroCADO 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC 201517 Pre Development Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 2 Area Listing (all nodes) Area CN Description (sq-ft) (s u bcatch me nt-n u m be rs) 69,973 39 >75% Grass cover, Good, HSG A (4, 5) 700,097 74 >75% Grass cover, Good, HSG C (1, 2, 3, 4, 5, 6) 15,190 98 Paved parking, HSG A (4, 5) 19,192 98 Paved parking, HSG C (1, 2, 3, 4, 5) 2,020 30 Woods, Good, HSG A (4) 52,457 70 Woods, Good, HSG C (1, 2, 3, 4) 858,928 72 TOTAL AREA 201517 Pre Development Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 3 Soil Listing (all nodes) Area Soil Subcatchment (sq-ft) Group Numbers 87,182 HSG A 4, 5 0 HSG B 771,746 HSG C 1, 2, 3, 4, 5, 6 0 HSG D 0 Other 858,928 TOTAL AREA 201517 Pre Development Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 4 Ground Covers (all nodes) HSG-A HSG-B HSG-C HSG-D Other Total Ground Sub (sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) Cover Nun 69,973 0 700,097 0 0 770,070 >75% Grass cover, Good 15,190 0 19,192 0 0 34,382 Paved parking 2,020 0 52,457 0 0 54,476 Woods, Good 87,182 0 771,746 0 0 858,928 TOTAL AREA 201517 Pre Development Type ll 24-hr 1 yr Rainfa11=2.15" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 5 Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=147,381 sf 3.88% Impervious Runoff Depth=0.48" Flow Length=580' Tc=11.0 min CN=WQ Runoff=2.06 cfs 5,896 cf Subcatchment2: Subcat 2 Runoff Area=94,446 sf 0.55% Impervious Runoff Depth=0.41" Flow Length=260' Tc=9.6 min CN=WQ Runoff=1.16 cfs 3,206 cf Subcatchment3: Subcat 3 Runoff Area=85,251 sf 8.11% Impervious Runoff Depth=0.54" Flow Length=605' Tc=10.1 min CN=WQ Runoff=1.38 cfs 3,824 cf Subcatchment4: Subcat 4 Runoff Area=421,481 sf 2.72% Impervious Runoff Depth=0.41" Flow Length=915' Tc=22.0 min CN=WQ Runoff=3.37 cfs 14,562 cf Subcatchment5: Subcat 5 Runoff Area=94,338 sf 10.37% Impervious Runoff Depth=0.43" Flow Length=412' Tc=14.5 min CN=WQ Runoff=1.05 cfs 3,402 cf Subcatchment6: Subcat 6 Runoff Area=16,031 sf 0.00% Impervious Runoff Depth=0.42" Tc=6.0 min CN=74 Runoff=0.25 cfs 564 cf Link AP-1: AP-1 Inflow=2.06 cfs 5,896 cf Primary=2.06 cfs 5,896 cf Link AP-2: Existing Pond Inflow=1.16 cfs 3,206 cf Primary=1.16 cfs 3,206 cf Link AP-3: AP-3 Inflow=2.38 cfs 7,226 cf Primary=2.38 cfs 7,226 cf LinkAP-4: AP-4 Inflow=3.37 cfs 14,562 cf Primary=3.37 cfs 14,562 cf LinkAP-5: AP-5 Inflow=0.25 cfs 564 cf Primary=0.25 cfs 564 cf Total Runoff Area = 858,928 sf Runoff Volume = 31,454 cf Average Runoff Depth = 0.44" 96.00% Pervious = 824,546 sf 4.00% Impervious = 34,382 sf 201517 Pre Development Type ll 24-hr 10yr Rainfa11=3.75" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 6 Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=147,381 sf 3.88% Impervious Runoff Depth=1.50" Flow Length=580' Tc=11.0 min CN=WQ Runoff=7.25 cfs 18,374 cf Subcatchment2: Subcat 2 Runoff Area=94,446 sf 0.55% Impervious Runoff Depth=1.38" Flow Length=260' Tc=9.6 min CN=WQ Runoff=4.54 cfs 10,860 cf Subcatchment3: Subcat 3 Runoff Area=85,251 sf 8.11% Impervious Runoff Depth=1.57" Flow Length=605' Tc=10.1 min CN=WQ Runoff=4.49 cfs 11,183 cf Subcatchment4: Subcat 4 Runoff Area=421,481 sf 2.72% Impervious Runoff Depth=1.32" Flow Length=915' Tc=22.0 min CN=WQ Runoff=12.90 cfs 46,497 cf Subcatchment5: Subcat 5 Runoff Area=94,338 sf 10.37% Impervious Runoff Depth=1.15" Flow Length=412' Tc=14.5 min CN=WQ Runoff=3.07 cfs 9,079 cf Subcatchment6: Subcat 6 Runoff Area=16,031 sf 0.00% Impervious Runoff Depth=1.42" Tc=6.0 min CN=74 Runoff=0.91 cfs 1,891 cf LinkAP-1: AP-1 Inflow=7.25 cfs 18,374 cf Primary=7.25 cfs 18,374 cf LinkAP-2: Existing Pond Inflow=4.54 cfs 10,860 cf Primary=4.54 cfs 10,860 cf LinkAP-3: AP-3 Inflow=7.40 cfs 20,262 cf Primary=7.40 cfs 20,262 cf LinkAP-4: AP-4 Inflow=12.90 cfs 46,497 cf Primary=12.90 cfs 46,497 cf LinkAP-5: AP-5 Inflow=0.91 cfs 1,891 cf Primary=0.91 cfs 1,891 cf Total Runoff Area = 858,928 sf Runoff Volume = 97,883 cf Average Runoff Depth = 1.37" 96.00% Pervious = 824,546 sf 4.00% Impervious = 34,382 sf 201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 1 Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=147,381 sf 3.88% Impervious Runoff Depth=3.45" Flow Length=580' Tc=11.0 min CN=WQ Runoff=16.92 cfs 42,417 cf Subcatchment2: Subcat 2 Runoff Area=94,446 sf 0.55% Impervious Runoff Depth=3.29" Flow Length=260' Tc=9.6 min CN=WQ Runoff=10.96 cfs 25,931 cf Subcatchment3: Subcat 3 Runoff Area=85,251 sf 8.11% Impervious Runoff Depth=3.55" Flow Length=605' Tc=10.1 min CN=WQ Runoff=10.25 cfs 25,201 cf Subcatchment4: Subcat 4 Runoff Area=421,481 sf 2.72% Impervious Runoff Depth=3.13" Flow Length=915' Tc=22.0 min CN=WQ Runoff=31.20 cfs 109,842 cf Subcatchment5: Subcat 5 Runoff Area=94,338 sf 10.37% Impervious Runoff Depth=2.64" Flow Length=412' Tc=14.5 min CN=WQ Runoff=6.90 cfs 20,791 cf Subcatchment6: Subcat 6 Runoff Area=16,031 sf 0.00% Impervious Runoff Depth=3.35" Tc=6.0 min CN=74 Runoff=2.12 cfs 4,480 cf LinkAP-1: AP-1 Inflow=16.92 cfs 42,417 cf Primary=16.92 cfs 42,417 cf LinkAP-2: Existing Pond Inflow=10.96 cfs 25,931 cf Primary=10.96 cfs 25,931 cf LinkAP-3: AP-3 Inflow=16.73 cfs 45,992 cf Primary=16.73 cfs 45,992 cf Link AP-4: AP-4 Inflow=31.20 cfs 109,842 cf Primary=31.20 cfs 109,842 cf Link AP-5: AP-5 Inflow=2.12 cfs 4,480 cf Primary=2.12 cfs 4,480 cf Total Runoff Area = 858,928 sf Runoff Volume = 228,662 cf Average Runoff Depth = 3.19" 96.00% Pervious = 824,546 sf 4.00% Impervious = 34,382 sf 201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 2 Summary for Subcatchment 1: Subcat 1 Runoff = 16.92 cfs @ 12.03 hrs, Volume= 42,417 cf, Depth= 3.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 141,174 74 >75% Grass cover, Good, HSG C 5,718 98 Paved parking, HSG C 489 70 Woods, Good, HSG C 147,381 Weighted Average 141,663 96.12% Pervious Area 5,718 3.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.9 100 0.0450 0.21 Sheet Flow, Grass: Short n= 0.150 P2= 2.60" 3.1 480 0.0290 2.55 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 11.0 580 Total Summary for Subcatchment 2: Subcat 2 Runoff = 10.96 cfs @ 12.01 hrs, Volume= 25,931 cf, Depth= 3.29" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 76,095 74 >75% Grass cover, Good, HSG C 519 98 Paved parking, HSG C 17,832 70 Woods, Good, HSG C 94,446 Weighted Average 93,927 99.45% Pervious Area 519 0.55% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.7 100 0.0350 0.19 Sheet Flow, Grass: Short n= 0.150 P2= 2.60" 0.9 160 0.0400 3.00 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 9.6 260 Total 201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 3 Summary for Subcatchment 3: Subcat 3 Runoff = 10.25 cfs @ 12.02 hrs, Volume= 25,201 cf, Depth= 3.55" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 74,431 74 >75% Grass cover, Good, HSG C 6,910 98 Paved parking, HSG C 3,910 70 Woods, Good, HSG C 85,251 Weighted Average 78,341 91.89% Pervious Area 6,910 8.11% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.6 100 0.0700 0.25 Sheet Flow, Grass: Short n= 0.150 P2= 2.60" 3.5 505 0.0250 2.37 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 10.1 605 Total Summary for Subcatchment 4: Subcat 4 Runoff = 31.20 cfs @ 12.15 hrs, Volume= 109,842 cf, Depth= 3.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 37,540 39 >75% Grass cover, Good, HSG A 340,246 74 >75% Grass cover, Good, HSG C 10,402 98 Paved parking, HSG A 1,048 98 Paved parking, HSG C 2,020 30 Woods, Good, HSG A 30,225 70 Woods, Good, HSG C 421,481 Weighted Average 410,031 97.28% Pervious Area 11,450 2.72% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.5 100 0.0500 0.22 Sheet Flow, Grass: Short n= 0.150 P2= 2.60" 14.5 815 0.0180 0.94 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 22.0 915 Total 201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 4 Summary for Subcatchment 5: Subcat 5 Runoff = 6.90 cfs @ 12.07 hrs, Volume= 20,791 cf, Depth= 2.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 32,433 39 >75% Grass cover, Good, HSG A 52,120 74 >75% Grass cover, Good, HSG C 4,789 98 Paved parking, HSG A 4,997 98 Paved parking, HSG C 94,338 Weighted Average 84,553 89.63% Pervious Area 9,785 10.37% 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" 5.3 312 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 14.5 412 Total Summary for Subcatchment 6: Subcat 6 Runoff = 2.12 cfs @ 11.97 hrs, Volume= 4,480 cf, Depth= 3.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 16,031 74 >75% Grass cover, Good, HSG C 16,031 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Link AP-1: AP-1 Inflow Area = 147,381 sf, 3.88% Impervious, Inflow Depth = 3.45" for 100yr event Inflow = 16.92 cfs @ 12.03 hrs, Volume= 42,417 cf Primary = 16.92 cfs @ 12.03 hrs, Volume= 42,417 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs 201517 Pre Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 5 Summary for Link AP-2: Existing Pond Inflow Area = 94,446 sf, 0.55% Impervious, Inflow Depth = 3.29" for 100yr event Inflow = 10.96 cfs @ 12.01 hrs, Volume= 25,931 cf Primary = 10.96 cfs @ 12.01 hrs, Volume= 25,931 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Summary for Link AP-3: AP-3 Inflow Area = 179,589 sf, 9.30% Impervious, Inflow Depth = 3.07" for 100yr event Inflow = 16.73 cfs @ 12.03 hrs, Volume= 45,992 cf Primary = 16.73 cfs @ 12.03 hrs, Volume= 45,992 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Summary for Link AP-4: AP-4 InflowArea = 421,481 sf, 2.72% Impervious, Inflow Depth = 3.13" for 100yr event Inflow = 31.20 cfs @ 12.15 hrs, Volume= 109,842 cf Primary = 31.20 cfs @ 12.15 hrs, Volume= 109,842 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Summary for Link AP-5: AP-5 Inflow Area = 16,031 sf, 0.00% Impervious, Inflow Depth = 3.35" for 100yr event Inflow = 2.12 cfs @ 11.97 hrs, Volume= 4,480 cf Primary = 2.12 cfs @ 11.97 hrs, Volume= 4,480 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Attachment C Proposed Conditions Watershed Map, HydroCAD Calculations & Frozen Conditions J 1 ,� � � ` � j f'� / , , � / ' � �` ` , ; l , � �� � / � / ;� ���, f,� ` ' / /��.� �� / i '• a ' '' ' �' LEGEND , . � � , .r r , � ;. / � .� // ��/=-`'�f ,j,//,� � %' . �� ��L f ' �' The LA GROUP / ,� l� �,''� � �/� /L // /,`�/� �j f' ,� ;� `�'`. � Landscape Architecture&Engineering P.C. �- / / / /� � //� / / // J (� ��.-�j � r � � � /�� //�, ��ii i �- ��i ; % �'�. / � / / //�// /� // / /�j �--r 1 `'� , � � � � SUBCATCHMENT BOUNOARY p p � � � �" ���� � /� �`� 1 ' i ; ' �`� � `� / / / / / � o / / // / Pea le.Pur ose.Place. � - ' �// / ��/% � � �i i�� 1 � � � � SUBCATCHMENT IO 40 Long Alley p:518-587-8100 /� ,� ,� �j ���j � /� ( �� �� / /�j � r ��� Saratoga Springs �518-587-0180 / / � / � � � �� // %� "- � �' �',�- �'�. ;' % � � I�fY 12866 www.thelagroup.com ( / / // �/ / , t f- � �, i TIME OF CONCENTRATION PATH / / / / ,i i � %� / / 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' �, - � / �,. � � ,,. ___ a A P - . . � � . . , . . . � � 1 ��� �1 � � ���. ::. . . � ��..� _ _ _ � �.. ,� ; ;�- �� � _ a � � � � -� �.,��-�,�� _ _ , , , � . � : r _�, , � . �. -� � �. ,, � s `� �. �� ,-- ., . �,.._ _ - , , �t ;,,, - , , 14 Subcatl4 IAP-5 L,�_ . �AP-5 MP-� ^ 18 15 Infiltratimn Basin Subcat 18 Subcat 15 � AP-4I 5P �AP-4 Hydro Sep�iratoric O Subcat 7 13 Subcat 13 O8 16 �Subcat 8 Subcat i6 11 1P bcat 11 ydrodynamic Separator 12 17 M P-3 �I ��� Subcat 12�Subqat 1�ioretention Subtat 6 Existing Pond 10 � P P 5� Subcatl0 For bay CB-7�SubCatS O P �Subcat4 B-9 O� MP-s � 4P O3 Subcat9 Pocke Pond Forebay Subcat3 O V /Subcat 2 Sub at 1 �/ MP-1 MP-4 Green Roof Infltration Chambers �AP 3 '_—�*,1� AP-3 AP-1 ��� Subcat Reach on Llnk Routing Diagram for 201517 Post Development Prepared by The LA Group, Printed 7/22/2021 '- ` HydroCADO 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC 201517 Post Development Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 2 Area Listing (all nodes) Area CN Description (sq-ft) (s u bcatch me nt-n u m be rs) 59,545 39 >75% Grass cover, Good, HSG A (9, 10, 12, 13, 17) 541,910 74 >75% Grass cover, Good, HSG C (1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18) 24,797 98 Paved parking, HSG A (9, 10, 12, 13, 17) 196,905 98 Paved parking, HSG C (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17) 1,944 30 Woods, Good, HSG A (13) 38,823 70 Woods, Good, HSG C (13, 16) 863,923 77 TOTAL AREA 201517 Post Development Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 3 Soil Listing (all nodes) Area Soil Subcatchment (sq-ft) Group Numbers 86,286 HSG A 9, 10, 12, 13, 17 0 HSG B 777,637 HSG C 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 0 HSG D 0 Other 863,923 TOTAL AREA 201517 Post Development Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 4 Ground Covers (all nodes) HSG-A HSG-B HSG-C HSG-D Other Total Ground Sub (sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) (sq-ft) Cover Nun 59,545 0 541,910 0 0 601,455 >75% Grass cover, Good 24,797 0 196,905 0 0 221,701 Paved parking 1,944 0 38,823 0 0 40,767 Woods, Good 86,286 0 777,637 0 0 863,923 TOTAL AREA 201517 Post Development Type ll 24-hr 1 yr Rainfa11=2.15" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 5 Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=67,534 sf 20.37% Impervious Runoff Depth=0.73" Tc=6.0 min CN=WQ Runoff=1.73 cfs 4,097 cf Subcatchment2: Subcat 2 RunoffArea=21,817 sf 100.00% Impervious Runoff Depth=1.92" Tc=6.0 min CN=98 Runoff=1.46 cfs 3,496 cf Subcatchment3: Subcat 3 Runoff Area=22,961 sf 87.71% Impervious Runoff Depth=1.74" Tc=6.0 min CN=WQ Runoff=1.39 cfs 3,327 cf Subcatchment4: Subcat 4 Runoff Area=15,942 sf 48.79% Impervious Runoff Depth=1.15" Tc=6.0 min CN=WQ Runoff=0.64 cfs 1,534 cf Subcatchment5: Subcat 5 Runoff Area=38,206 sf 81.99% Impervious Runoff Depth=1.65" Tc=6.0 min CN=WQ Runoff=2.19 cfs 5,262 cf Subcatchment6: Subcat 6 Runoff Area=14,725 sf 87.91% Impervious Runoff Depth=1.74" Tc=6.0 min CN=WQ Runoff=0.89 cfs 2,137 cf Subcatchment7: Subcat 7 Runoff Area=28,841 sf 81.93% Impervious Runoff Depth=1.65" Tc=6.0 min CN=WQ Runoff=1.66 cfs 3,970 cf Subcatchment8: Subcat 8 Runoff Area=66,306 sf 59.80% Impervious Runoff Depth=1.32" Tc=6.0 min CN=WQ Runoff=3.03 cfs 7,292 cf Subcatchment9: Subcat 9 Runoff Area=45,002 sf 10.51% Impervious Runoff Depth=0.50" Tc=6.0 min CN=WQ Runoff=0.79 cfs 1,867 cf Subcatchment10: Subcat 10 Runoff Area=21,139 sf 59.14% Impervious Runoff Depth=1.16" Tc=6.0 min CN=WQ Runoff=0.86 cfs 2,051 cf Subcatchment 11: Subcat 11 Runoff Area=10,337 sf 80.61% Impervious Runoff Depth=1.63" Tc=6.0 min CN=WQ Runoff=0.59 cfs 1,406 cf Subcatchment12: Subcat 12 Runoff Area=11,391 sf 60.83% Impervious Runoff Depth=1.19" Tc=6.0 min CN=WQ Runoff=0.47 cfs 1,128 cf Subcatchment 13: Subcat 13 Runoff Area=321,071 sf 2.26% Impervious Runoff Depth=0.39" Flow Length=532' Slope=0.0200 '/' Tc=18.2 min CN=WQ Runoff=2.72 cfs 10,479 cf Subcatchment 14: Subcat 14 Runoff Area=72,741 sf 0.10% Impervious Runoff Depth=0.42" Flow Length=127' Tc=7.3 min CN=WQ Runoff=1.06 cfs 2,569 cf Subcatchment 15: Subcat 15 Runoff Area=14,583 sf 0.00% Impervious Runoff Depth=0.42" Tc=6.0 min CN=74 Runoff=0.22 cfs 513 cf Subcatchment 16: Subcat 16 Runoff Area=62,654 sf 0.00% Impervious Runoff Depth=0.41" Flow Length=265' Slope=0.0400 '/' Tc=10.2 min CN=WQ Runoff=0.76 cfs 2,128 cf 201517 Post Development Type ll 24-hr 1 yr Rainfa11=2.15" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 6 Subcatchment 17: Subcat 17 Runoff Area=19,144 sf 56.60% Impervious Runoff Depth=1.24" Tc=6.0 min CN=WQ Runoff=0.82 cfs 1,977 cf Subcatchment 18: Subcat 18 Runoff Area=9,529 sf 0.00% Impervious Runoff Depth=0.42" Tc=6.0 min CN=74 Runoff=0.15 cfs 335 cf Pond 1P: HydrodynamicSeparator Peak Elev=378.82' Inflow=3.03 cfs 7,292 cf 18.0" Round Culvert n=0.012 L=75.0' S=0.0053 '/' Outflow=3.03 cfs 7,292 cf Pond 2P: Forebay Peak EIev=370.14' Storage=2,907 cf Inflow=3.24 cfs 13,853 cf Outflow=3.17 cfs 11,167 cf Pond 3P: CB-9 Peak Elev=378.53' Inflow=3.09 cfs 7,399 cf 18.0" Round Culvert n=0.012 L=100.0' S=0.0050 '/' Outflow=3.09 cfs 7,399 cf Pond 4P: Forebay Peak Elev=369.98' Storage=1,534 cf Inflow=0.64 cfs 1,534 cf Outflow=0.00 cfs 0 cf Pond 5P: HydrodynamicSeparator Peak Elev=381.91' Inflow=1.66 cfs 3,970 cf 12.0" Round Culvert n=0.012 L=33.0' S=0.0061 '/' Outflow=1.66 cfs 3,970 cf Pond 6P: CB-7 Peak EIev=379.70' Inflow=0.89 cfs 2,137 cf 15.0" Round Culvert n=0.012 L=178.0' S=0.0087 '/' Outflow=0.89 cfs 2,137 cf Pond SMP-1: Green Roof Peak EIev=412.00' Storage=16 cf Inflow=1.46 cfs 3,496 cf Primary=0.00 cfs 0 cf Secondary=1.45 cfs 3,496 cf Outflow=1.45 cfs 3,496 cf Pond SMP-2: Infiltration Basin Peak Elev=378.42' Storage=822 cf Inflow=2.80 cfs 6,874 cf Discarded=1.54 cfs 6,874 cf Primary=0.00 cfs 0 cf Outflow=1.54 cfs 6,874 cf Pond SMP-3: Bioretention Peak Elev=375.67' Storage=2,283 cf Inflow=3.03 cfs 7,292 cf Outflow=1.29 cfs 7,292 cf Pond SMP-4: Infiltration Chambers Peak EIev=373.90' Storage=0.043 af Inflow=4.48 cfs 10,726 cf Discarded=1.52 cfs 10,726 cf Primary=0.00 cfs 0 cf Outflow=1.52 cfs 10,726 cf Pond SMP-5: Pocket Pond Peak Elev=368.75' Storage=10,080 cf Inflow=3.92 cfs 13,034 cf Outflow=0.25 cfs 12,970 cf Link AP-1: AP-1 Inflow=1.73 cfs 4,097 cf Primary=1.73 cfs 4,097 cf Link AP-2: Existing Pond Inflow=0.76 cfs 2,128 cf Primary=0.76 cfs 2,128 cf LinkAP-3: AP-3 Inflow=1.59 cfs 16,466 cf Primary=1.59 cfs 16,466 cf LinkAP-4: AP-4 Inflow=2.72 cfs 10,479 cf Primary=2.72 cfs 10,479 cf LinkAP-5: AP-5 Inflow=0.22 cfs 513 cf Primary=0.22 cfs 513 cf 201517 Post Development Type ll 24-hr 1 yr Rainfa11=2.15" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 7 Total Runoff Area = 863,923 sf Runoff Volume = 55,567 cf Average Runoff Depth = 0.77" 74.34% Pervious = 642,222 sf 25.66% Impervious = 221,701 sf 201517 Post Development Type ll 24-hr 10yr Rainfa11=3.75" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 8 Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=67,534 sf 20.37% Impervious Runoff Depth=1.84" Tc=6.0 min CN=WQ Runoff=4.62 cfs 10,373 cf Subcatchment2: Subcat 2 RunoffArea=21,817 sf 100.00% Impervious Runoff Depth=3.52" Tc=6.0 min CN=98 Runoff=2.59 cfs 6,392 cf Subcatchment3: Subcat 3 Runoff Area=22,961 sf 87.71% Impervious Runoff Depth=3.26" Tc=6.0 min CN=WQ Runoff=2.55 cfs 6,233 cf Subcatchment4: Subcat 4 Runoff Area=15,942 sf 48.79% Impervious Runoff Depth=2.44" Tc=6.0 min CN=WQ Runoff=1.37 cfs 3,242 cf Subcatchment5: Subcat 5 Runoff Area=38,206 sf 81.99% Impervious Runoff Depth=3.14" Tc=6.0 min CN=WQ Runoff=4.10 cfs 9,989 cf Subcatchment6: Subcat 6 Runoff Area=14,725 sf 87.91% Impervious Runoff Depth=3.26" Tc=6.0 min CN=WQ Runoff=1.63 cfs 4,002 cf Subcatchment7: Subcat 7 Runoff Area=28,841 sf 81.93% Impervious Runoff Depth=3.14" Tc=6.0 min CN=WQ Runoff=3.09 cfs 7,538 cf Subcatchment8: Subcat 8 Runoff Area=66,306 sf 59.80% Impervious Runoff Depth=2.67" Tc=6.0 min CN=WQ Runoff=6.18 cfs 14,760 cf Subcatchment9: Subcat 9 Runoff Area=45,002 sf 10.51% Impervious Runoff Depth=1.37" Tc=6.0 min CN=WQ Runoff=2.32 cfs 5,121 cf Subcatchment10: Subcat 10 Runoff Area=21,139 sf 59.14% Impervious Runoff Depth=2.18" Tc=6.0 min CN=WQ Runoff=1.56 cfs 3,836 cf Subcatchment 11: Subcat 11 Runoff Area=10,337 sf 80.61% Impervious Runoff Depth=3.11" Tc=6.0 min CN=WQ Runoff=1.10 cfs 2,678 cf Subcatchment12: Subcat 12 Runoff Area=11,391 sf 60.83% Impervious Runoff Depth=2.21" Tc=6.0 min CN=WQ Runoff=0.85 cfs 2,096 cf Subcatchment 13: Subcat 13 Runoff Area=321,071 sf 2.26% Impervious Runoff Depth=1.27" Flow Length=532' Slope=0.0200 '/' Tc=18.2 min CN=WQ Runoff=10.49 cfs 33,848 cf Subcatchment 14: Subcat 14 Runoff Area=72,741 sf 0.10% Impervious Runoff Depth=1.42" Flow Length=127' Tc=7.3 min CN=WQ Runoff=3.96 cfs 8,593 cf Subcatchment 15: Subcat 15 Runoff Area=14,583 sf 0.00% Impervious Runoff Depth=1.42" Tc=6.0 min CN=74 Runoff=0.82 cfs 1,720 cf Subcatchment 16: Subcat 16 Runoff Area=62,654 sf 0.00% Impervious Runoff Depth=1.39" Flow Length=265' Slope=0.0400 '/' Tc=10.2 min CN=WQ Runoff=2.96 cfs 7,234 cf 201517 Post Development Type ll 24-hr 10yr Rainfa11=3.75" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 9 Subcatchment 17: Subcat 17 Runoff Area=19,144 sf 56.60% Impervious Runoff Depth=2.50" Tc=6.0 min CN=WQ Runoff=1.66 cfs 3,982 cf Subcatchment 18: Subcat 18 Runoff Area=9,529 sf 0.00% Impervious Runoff Depth=1.42" Tc=6.0 min CN=74 Runoff=0.54 cfs 1,124 cf Pond 1P: HydrodynamicSeparator Peak Elev=379.35' Inflow=6.18 cfs 14,760 cf 18.0" Round Culvert n=0.012 L=75.0' S=0.0053 '/' Outflow=6.18 cfs 14,760 cf Pond 2P: Forebay Peak EIev=370.29' Storage=3,151 cf Inflow=9.50 cfs 27,353 cf Outflow=9.45 cfs 24,667 cf Pond 3P: CB-9 Peak Elev=378.97' Inflow=5.73 cfs 13,991 cf 18.0" Round Culvert n=0.012 L=100.0' S=0.0050 '/' Outflow=5.73 cfs 13,991 cf Pond 4P: Forebay Peak EIev=370.09' Storage=1,625 cf Inflow=1.37 cfs 3,242 cf Outflow=1.23 cfs 1,694 cf Pond 5P: HydrodynamicSeparator Peak Elev=382.48' Inflow=3.09 cfs 7,538 cf 12.0" Round Culvert n=0.012 L=33.0' S=0.0061 '/' Outflow=3.09 cfs 7,538 cf Pond 6P: CB-7 Peak Elev=379.87' Inflow=1.63 cfs 4,002 cf 15.0" Round Culvert n=0.012 L=178.0' S=0.0087 '/' Outflow=1.63 cfs 4,002 cf Pond SMP-1: Green Roof Peak EIev=412.01' Storage=28 cf Inflow=2.59 cfs 6,392 cf Primary=0.00 cfs 0 cf Secondary=2.56 cfs 6,392 cf Outflow=2.56 cfs 6,392 cf Pond SMP-2: Infiltration Basin Peak EIev=379.07' Storage=3,467 cf Inflow=7.51 cfs 17,254 cf Discarded=3.28 cfs 17,254 cf Primary=0.00 cfs 0 cf Outflow=3.28 cfs 17,254 cf Pond SMP-3: Bioretention Peak Elev=375.95' Storage=3,403 cf Inflow=6.18 cfs 14,760 cf Outflow=4.79 cfs 14,760 cf Pond SMP-4: Infiltration Chambers Peak Elev=374.86' Storage=0.123 af Inflow=8.28 cfs 20,224 cf Discarded=1.52 cfs 20,224 cf Primary=0.00 cfs 0 cf Outflow=1.52 cfs 20,224 cf Pond SMP-5: Pocket Pond Peak Elev=369.91' Storage=18,001 cf Inflow=11.70 cfs 31,482 cf Outflow=1.42 cfs 31,392 cf LinkAP-1: AP-1 Inflow=4.62 cfs 10,373 cf Primary=4.62 cfs 10,373 cf Link AP-2: Existing Pond Inflow=2.96 cfs 7,234 cf Primary=2.96 cfs 7,234 cf LinkAP-3: AP-3 Inflow=3.16 cfs 37,784 cf Primary=3.16 cfs 37,784 cf LinkAP-4: AP-4 Inflow=10.49 cfs 33,848 cf Primary=10.49 cfs 33,848 cf LinkAP-5: AP-5 Inflow=0.82 cfs 1,720 cf Primary=0.82 cfs 1,720 cf 201517 Post Development Type ll 24-hr 10yr Rainfa11=3.75" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 10 Total Runoff Area = 863,923 sf Runoff Volume = 132,760 cf Average Runoff Depth = 1.84" 74.34% Pervious = 642,222 sf 25.66% Impervious = 221,701 sf 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 1 Time span=0.00-48.00 hrs, dt=0.05 hrs, 961 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=67,534 sf 20.37% Impervious Runoff Depth=3.88" Tc=6.0 min CN=WQ Runoff=9.81 cfs 21,864 cf Subcatchment2: Subcat 2 RunoffArea=21,817 sf 100.00% Impervious Runoff Depth=5.96" Tc=6.0 min CN=98 Runoff=4.31 cfs 10,839 cf Subcatchment3: Subcat 3 Runoff Area=22,961 sf 87.71% Impervious Runoff Depth=5.64" Tc=6.0 min CN=WQ Runoff=4.35 cfs 10,794 cf Subcatchment4: Subcat 4 Runoff Area=15,942 sf 48.79% Impervious Runoff Depth=4.63" Tc=6.0 min CN=WQ Runoff=2.61 cfs 6,146 cf Subcatchment5: Subcat 5 Runoff Area=38,206 sf 81.99% Impervious Runoff Depth=5.49" Tc=6.0 min CN=WQ Runoff=7.09 cfs 17,485 cf Subcatchment6: Subcat 6 Runoff Area=14,725 sf 87.91% Impervious Runoff Depth=5.65" Tc=6.0 min CN=WQ Runoff=2.79 cfs 6,929 cf Subcatchment7: Subcat 7 Runoff Area=28,841 sf 81.93% Impervious Runoff Depth=5.49" Tc=6.0 min CN=WQ Runoff=5.35 cfs 13,196 cf Subcatchment8: Subcat 8 Runoff Area=66,306 sf 59.80% Impervious Runoff Depth=4.91" Tc=6.0 min CN=WQ Runoff=11.33 cfs 27,148 cf Subcatchment9: Subcat 9 Runoff Area=45,002 sf 10.51% Impervious Runoff Depth=3.07" Tc=6.0 min CN=WQ Runoff=5.15 cfs 11,526 cf Subcatchment10: Subcat 10 Runoff Area=21,139 sf 59.14% Impervious Runoff Depth=3.91" Tc=6.0 min CN=WQ Runoff=2.69 cfs 6,895 cf Subcatchment 11: Subcat 11 Runoff Area=10,337 sf 80.61% Impervious Runoff Depth=5.46" Tc=6.0 min CN=WQ Runoff=1.91 cfs 4,700 cf Subcatchment12: Subcat 12 Runoff Area=11,391 sf 60.83% Impervious Runoff Depth=3.95" Tc=6.0 min CN=WQ Runoff=1.45 cfs 3,747 cf Subcatchment 13: Subcat 13 Runoff Area=321,071 sf 2.26% Impervious Runoff Depth=3.02" Flow Length=532' Slope=0.0200 '/' Tc=18.2 min CN=WQ Runoff=25.43 cfs 80,734 cf Subcatchment 14: Subcat 14 Runoff Area=72,741 sf 0.10% Impervious Runoff Depth=3.36" Flow Length=127' Tc=7.3 min CN=WQ Runoff=9.35 cfs 20,346 cf Subcatchment 15: Subcat 15 Runoff Area=14,583 sf 0.00% Impervious Runoff Depth=3.35" Tc=6.0 min CN=74 Runoff=1.93 cfs 4,076 cf Subcatchment 16: Subcat 16 Runoff Area=62,654 sf 0.00% Impervious Runoff Depth=3.31" Flow Length=265' Slope=0.0400 '/' Tc=10.2 min CN=WQ Runoff=7.14 cfs 17,267 cf 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 2 Subcatchment17: Subcat 17 Runoff Area=19,144 sf 56.60% Impervious Runoff Depth=4.61" Tc=6.0 min CN=WQ Runoff=3.04 cfs 7,352 cf Subcatchment 18: Subcat 18 Runoff Area=9,529 sf 0.00% Impervious Runoff Depth=3.35" Tc=6.0 min CN=74 Runoff=1.26 cfs 2,663 cf Pond 1P: HydrodynamicSeparator Peak EIev=380.70' Inflow=11.33 cfs 27,148 cf 18.0" Round Culvert n=0.012 L=75.0' S=0.0053 '/' Outflow=11.33 cfs 27,148 cf Pond 2P: Forebay Peak EIev=370.41' Storage=3,363 cf Inflow=16.52 cfs 49,842 cf Outflow=16.50 cfs 47,156 cf Pond 3P: CB-9 Peak EIev=380.09' Inflow=9.88 cfs 24,413 cf 18.0" Round Culvert n=0.012 L=100.0' S=0.0050 '/' Outflow=9.88 cfs 24,413 cf Pond 4P: Forebay Peak EIev=370.14' Storage=1,676 cf Inflow=2.61 cfs 6,146 cf Outflow=2.60 cfs 4,598 cf Pond 5P: HydrodynamicSeparator Peak Elev=383.62' Inflow=5.35 cfs 13,196 cf 12.0" Round Culvert n=0.012 L=33.0' S=0.0061 '/' Outflow=5.35 cfs 13,196 cf Pond 6P: CB-7 Peak EIev=380.10' Inflow=2.79 cfs 6,929 cf 15.0" Round Culvert n=0.012 L=178.0' S=0.0087 '/' Outflow=2.79 cfs 6,929 cf Pond SMP-1: Green Roof Peak EIev=412.01' Storage=46 cf Inflow=4.31 cfs 10,839 cf Primary=0.00 cfs 0 cf Secondary=4.26 cfs 10,839 cf Outflow=4.26 cfs 10,839 cf Pond SMP-2: Infiltration Basin Peak EIev=379.80' Storage=9,101 cf Inflow=15.86 cfs 36,205 cf Discarded=5.78 cfs 36,205 cf Primary=0.00 cfs 0 cf Outflow=5.78 cfs 36,205 cf Pond SMP-3: Bioretention Peak Elev=376.33' Storage=5,159 cf Inflow=11.33 cfs 27,148 cf Outflow=7.69 cfs 27,148 cf Pond SMP-4: Infiltration Chambers Peak EIev=376.60' Storage=0.254 af Inflow=14.22 cfs 35,207 cf Discarded=1.52 cfs 33,644 cf Primary=0.73 cfs 1,563 cf Outflow=2.25 cfs 35,207 cf Pond SMP-5: Pocket Pond Peak EIev=370.94' Storage=26,735 cf Inflow=24.25 cfs 63,280 cf Outflow=9.79 cfs 63,171 cf LinkAP-1: AP-1 Inflow=9.81 cfs 21,864 cf Primary=9.81 cfs 21,864 cf LinkAP-2: Existing Pond Inflow=7.14 cfs 17,267 cf Primary=7.14 cfs 17,267 cf LinkAP-3: AP-3 Inflow=13.76 cfs 75,573 cf Primary=13.76 cfs 75,573 cf LinkAP-4: AP-4 Inflow=25.43 cfs 80,734 cf Primary=25.43 cfs 80,734 cf Link AP-5: AP-5 Inflow=1.93 cfs 4,076 cf Primary=1.93 cfs 4,076 cf 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 3 Total Runoff Area = 863,923 sf Runoff Volume = 273,705 cf Average Runoff Depth = 3.80" 74.34% Pervious = 642,222 sf 25.66% Impervious = 221,701 sf 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 4 Summary for Subcatchment 1: Subcat 1 Runoff = 9.81 cfs @ 11.97 hrs, Volume= 21,864 cf, Depth= 3.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 53,778 74 >75% Grass cover, Good, HSG C 13,755 98 Paved parking, HSG C 67,534 Weighted Average 53,778 79.63% Pervious Area 13,755 20.37% 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 = 4.31 cfs @ 11.96 hrs, Volume= 10,839 cf, Depth= 5.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 21,817 98 Paved parking, HSG C 21,817 100.00% 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 = 4.35 cfs @ 11.96 hrs, Volume= 10,794 cf, Depth= 5.64" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 2,821 74 >75% Grass cover, Good, HSG C 20,140 98 Paved parking, HSG C 22,961 Weighted Average 2,821 12.29% Pervious Area 20,140 87.71% Impervious Area 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 5 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 4: Subcat 4 Runoff = 2.61 cfs @ 11.97 hrs, Volume= 6,146 cf, Depth= 4.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 8,163 74 >75% Grass cover, Good, HSG C 7,779 98 Paved parking, HSG C 15,942 Weighted Average 8,163 51.21% Pervious Area 7,779 48.79% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 5: Subcat 5 Runoff = 7.09 cfs @ 11.96 hrs, Volume= 17,485 cf, Depth= 5.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 6,883 74 >75% Grass cover, Good, HSG C 31,323 98 Paved parking, HSG C 38,206 Weighted Average 6,883 18.01% Pervious Area 31,323 81.99% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 6: Subcat 6 Runoff = 2.79 cfs @ 11.96 hrs, Volume= 6,929 cf, Depth= 5.65" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 6 Area (s� CN Description 1,781 74 >75% Grass cover, Good, HSG C 12,944 98 Paved parking, HSG C 14,725 Weighted Average 1,781 12.09% Pervious Area 12,944 87.91% 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 = 5.35 cfs @ 11.96 hrs, Volume= 13,196 cf, Depth= 5.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 5,210 74 >75% Grass cover, Good, HSG C 23,631 98 Paved parking, HSG C 28,841 Weighted Average 5,210 18.07% Pervious Area 23,631 81.93% 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 = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf, Depth= 4.91" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 26,657 74 >75% Grass cover, Good, HSG C 39,649 98 Paved parking, HSG C 66,306 Weighted Average 26,657 40.20% Pervious Area 39,649 59.80% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 7 Summary for Subcatchment 9: Subcat 9 Runoff = 5.15 cfs @ 11.97 hrs, Volume= 11,526 cf, Depth= 3.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 8,754 39 >75% Grass cover, Good, HSG A 31,518 74 >75% Grass cover, Good, HSG C 1,488 98 Paved parking, HSG A 3,242 98 Paved parking, HSG C 45,002 Weighted Average 40,272 89.49% Pervious Area 4,730 10.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 10: Subcat 10 Runoff = 2.69 cfs @ 11.96 hrs, Volume= 6,895 cf, Depth= 3.91" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 7,287 39 >75% Grass cover, Good, HSG A 1,351 74 >75% Grass cover, Good, HSG C 10,089 98 Paved parking, HSG A 2,413 98 Paved parking, HSG C 21,139 Weighted Average 8,638 40.86% Pervious Area 12,501 59.14% 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 = 1.91 cfs @ 11.96 hrs, Volume= 4,700 cf, Depth= 5.46" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 8 Area (s� CN Description 2,004 74 >75% Grass cover, Good, HSG C 8,333 98 Paved parking, HSG C 10,337 Weighted Average 2,004 19.39% Pervious Area 8,333 80.61% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 12: Subcat 12 Runoff = 1.45 cfs @ 11.96 hrs, Volume= 3,747 cf, Depth= 3.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 3,967 39 >75% Grass cover, Good, HSG A 495 74 >75% Grass cover, Good, HSG C 5,730 98 Paved parking, HSG A 1,199 98 Paved parking, HSG C 11,391 Weighted Average 4,462 39.17% Pervious Area 6,929 60.83% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 13: Subcat 13 Runoff = 25.43 cfs @ 12.11 hrs, Volume= 80,734 cf, Depth= 3.02" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 38,049 39 >75% Grass cover, Good, HSG A 242,513 74 >75% Grass cover, Good, HSG C 7,214 98 Paved parking, HSG A 48 98 Paved parking, HSG C 1,944 30 Woods, Good, HSG A 31,303 70 Woods, Good, HSG C 321,071 Weighted Average 313,809 97.74% Pervious Area 7,262 2.26% Impervious Area 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 9 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.9 100 0.0200 0.15 Sheet Flow, Grass: Short n= 0.150 P2= 2.60" 7.3 432 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 18.2 532 Total Summary for Subcatchment 14: Subcat 14 Runoff = 9.35 cfs @ 11.99 hrs, Volume= 20,346 cf, Depth= 3.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 72,667 74 >75% Grass cover, Good, HSG C 74 98 Paved parking, HSG C 72,741 Weighted Average 72,667 99.90% Pervious Area 74 0.10% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 100 0.0600 0.24 Sheet Flow, Grass: Short n= 0.150 P2= 2.60" 0.3 27 0.0400 1.40 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 7.3 127 Total Summary for Subcatchment 15: Subcat 15 Runoff = 1.93 cfs @ 11.97 hrs, Volume= 4,076 cf, Depth= 3.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 14,583 74 >75% Grass cover, Good, HSG C 14,583 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 10 Summary for Subcatchment 16: Subcat 16 Runoff = 7.14 cfs @ 12.02 hrs, Volume= 17,267 cf, Depth= 3.31" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 55,134 74 >75% Grass cover, Good, HSG C 0 98 Paved parking, HSG C 7,520 70 Woods, Good, HSG C 62,654 Weighted Average 62,654 100.00% Pervious Area 0 0.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.2 100 0.0400 0.20 Sheet Flow, Grass: Short n= 0.150 P2= 2.60" 2.0 165 0.0400 1.40 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 10.2 265 Total Summary for Subcatchment 17: Subcat 17 Runoff = 3.04 cfs @ 11.96 hrs, Volume= 7,352 cf, Depth= 4.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" Area (s� CN Description 1,487 39 >75% Grass cover, Good, HSG A 6,822 74 >75% Grass cover, Good, HSG C 276 98 Paved parking, HSG A 10,560 98 Paved parking, HSG C 19,144 Weighted Average 8,309 43.40% Pervious Area 10,836 56.60% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 18: Subcat 18 Runoff = 1.26 cfs @ 11.97 hrs, Volume= 2,663 cf, Depth= 3.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Type II 24-hr 100yr Rainfa11=6.20" 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 11 Area (s� CN Description 9,529 74 >75% Grass cover, Good, HSG C 9,529 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Pond 1 P: Hydrodynamic Separator Inflow Area = 66,306 sf, 59.80% Impervious, Inflow Depth = 4.91" for 100yr event Inflow = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf Outflow = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf, Atten= 0%, Lag= 0.0 min Primary = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 380.70' @ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 377.90' 18.0" Round Culvert L= 75.0' Ke= 0.500 Inlet/ Outlet Invert= 377.90' / 377.50' S= 0.0053 '/' Cc= 0.900 n= 0.012, Flow Area= 1.77 sf Primary OutFlow Max=11.03 cfs @ 11.96 hrs HW=380.61' (Free Discharge) L1=Culvert (Barrel Controls 11.03 cfs @ 6.24 fps) Summary for Pond 2P: Forebay Inflow Area = 128,317 sf, 60.98% Impervious, Inflow Depth = 4.66" for 100yr event Inflow = 16.52 cfs @ 11.98 hrs, Volume= 49,842 cf Outflow = 16.50 cfs @ 11.98 hrs, Volume= 47,156 cf, Atten= 0%, Lag= 0.5 min Primary = 16.50 cfs @ 11.98 hrs, Volume= 47,156 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 370.41' @ 11.98 hrs Surf.Area= 1,773 sf Storage= 3,363 cf Plug-Flow detention time= 65.2 min calculated for 47,156 cf(95% of inflow) Center-of-Mass det. time= 30.0 min ( 817.7 - 787.6 ) Volume Invert Avail.Storage Storage Description #1 366.00' 4,514 cf Custom Stage Data (Irregular)Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 366.00 50 34.0 0 0 50 367.00 291 74.0 154 154 398 368.00 605 111.0 439 592 950 369.00 1,031 146.0 809 1,401 1,678 370.00 1,557 176.0 1,285 2,686 2,463 371.00 2,114 194.0 1,828 4,514 3,024 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 12 Device Routing Invert Outlet Devices #1 Primary 370.00' 25.0' long x 8.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.43 2.54 2.70 2.69 2.68 2.68 2.66 2.64 2.64 2.64 2.65 2.65 2.66 2.66 2.68 2.70 2.74 Primary OutFlow Max=16.13 cfs @ 11.98 hrs HW=370.40' (Free Discharge) L1=Broad-Crested Rectangular Weir(Weir Controls 16.13 cfs @ 1.61 fps) Summary for Pond 3P: CB-9 Inflow Area = 52,931 sf, 83.63% Impervious, Inflow Depth = 5.53" for 100yr event Inflow = 9.88 cfs @ 11.96 hrs, Volume= 24,413 cf Outflow = 9.88 cfs @ 11.96 hrs, Volume= 24,413 cf, Atten= 0%, Lag= 0.0 min Primary = 9.88 cfs @ 11.96 hrs, Volume= 24,413 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 380.09' @ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 377.60' 18.0" Round Culvert L= 100.0' Ke= 0.500 Inlet/ Outlet Invert= 377.60' / 377.10' S= 0.0050 '/' Cc= 0.900 n= 0.012, Flow Area= 1.77 sf Primary OutFlow Max=9.63 cfs @ 11.96 hrs HW=380.01' (Free Discharge) L1=Culvert (Barrel Controls 9.63 cfs @ 5.45 fps) Summary for Pond 4P: Forebay Inflow Area = 15,942 sf, 48.79% Impervious, Inflow Depth = 4.63" for 100yr event Inflow = 2.61 cfs @ 11.97 hrs, Volume= 6,146 cf Outflow = 2.60 cfs @ 11.98 hrs, Volume= 4,598 cf, Atten= 0%, Lag= 0.7 min Primary = 2.60 cfs @ 11.98 hrs, Volume= 4,598 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 370.14' @ 11.98 hrs Surf.Area= 932 sf Storage= 1,676 cf Plug-Flow detention time= 161.0 min calculated for 4,598 cf(75% of inflow) Center-of-Mass det. time= 67.3 min ( 838.8 - 771.6 ) Volume Invert Avail.Storage Storage Description #1 366.00' 2,604 cf Custom Stage Data (Irregular)Listed below (Recalc) 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 13 Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 366.00 22 25.0 0 0 22 367.00 174 51.0 86 86 184 368.00 355 70.0 259 345 376 369.00 592 89.0 468 814 630 370.00 886 107.0 734 1,548 927 371.00 1,237 126.0 1,057 2,604 1,298 Device Routing Invert Outlet Devices #1 Primary 370.00' 20.0' long x 8.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 Coef. (English) 2.43 2.54 2.70 2.69 2.68 2.68 2.66 2.64 2.64 2.64 2.65 2.65 2.66 2.66 2.68 2.70 2.74 Primary OutFlow Max=2.48 cfs @ 11.98 hrs HW=370.14' (Free Discharge) L1=Broad-Crested Rectangular Weir(Weir Controls 2.48 cfs @ 0.90 fps) Summary for Pond 5P: Hydrodynamic Separator Inflow Area = 28,841 sf, 81.93% Impervious, Inflow Depth = 5.49" for 100yr event Inflow = 5.35 cfs @ 11.96 hrs, Volume= 13,196 cf Outflow = 5.35 cfs @ 11.96 hrs, Volume= 13,196 cf, Atten= 0%, Lag= 0.0 min Primary = 5.35 cfs @ 11.96 hrs, Volume= 13,196 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 383.62' @ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 381.11' 12.0" Round Culvert L= 33.0' Ke= 0.500 Inlet/ Outlet Invert= 381.11' / 380.91' S= 0.0061 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf Primary OutFlow Max=5.22 cfs @ 11.96 hrs HW=383.54' (Free Discharge) L1=Culvert (Barrel Controls 5.22 cfs @ 6.64 fps) Summary for Pond 6P: CB-7 Inflow Area = 14,725 sf, 87.91% Impervious, Inflow Depth = 5.65" for 100yr event Inflow = 2.79 cfs @ 11.96 hrs, Volume= 6,929 cf Outflow = 2.79 cfs @ 11.96 hrs, Volume= 6,929 cf, Atten= 0%, Lag= 0.0 min Primary = 2.79 cfs @ 11.96 hrs, Volume= 6,929 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 380.10' @ 11.96 hrs Device Routing Invert Outlet Devices #1 Primary 379.25' 15.0" Round Culvert L= 178.0' Ke= 0.500 Inlet/ Outlet Invert= 379.25' / 377.70' S= 0.0087 '/' Cc= 0.900 n= 0.012, Flow Area= 1.23 sf 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 14 Primary OutFlow Max=2.72 cfs @ 11.96 hrs HW=380.09' (Free Discharge) L1=Culvert (Inlet Controls 2.72 cfs @ 3.11 fps) Summary for Pond SMP-1: Green Roof InflowArea = 21,817 sf,100.00% Impervious, Inflow Depth = 5.96" for 100yr event Inflow = 4.31 cfs @ 11.96 hrs, Volume= 10,839 cf Outflow = 4.26 cfs @ 11.96 hrs, Volume= 10,839 cf, Atten= 1%, Lag= 0.1 min Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Secondary = 4.26 cfs @ 11.96 hrs, Volume= 10,839 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs/2 Peak Elev= 412.01' @ 11.96 hrs Surf.Area= 18,662 sf Storage= 46 cf Plug-Flow detention time= 0.2 min calculated for 10,839 cf(100% of inflow) Center-of-Mass det. time= 0.2 min ( 740.7 - 740.5 ) Volume Invert Avail.Storage Storage Description #1 412.00' 8,818 cf Custom Stage Data (Prismatic)Listed below (Recalc) Elevation Surf.Area Voids Inc.Store Cum.Store (feet) (sq-ft) (%) (cubic-feet) (cubic-feet) 412.00 18,662 0.0 0 0 412.17 18,662 25.0 793 793 412.67 18,662 20.0 1,866 2,659 412.68 18,662 100.0 187 2,846 413.00 18,662 100.0 5,972 8,818 Device Routing Invert Outlet Devices #1 Secondary 412.00' 10.000 in/hr Exfiltration over SurFace area #2 Primary 412.78' 6.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=412.00' (Free Discharge) L2=0rifice/Grate ( Controls 0.00 cfs) Secondary OutFlow Max=4.32 cfs @ 11.96 hrs HW=412.01' (Free Discharge) L1=Exfiltration (Exfiltration Controls 4.32 cfs) Summary for Pond SMP-2: Infiltration Basin InflowArea = 111,111 sf, 21.33% Impervious, Inflow Depth = 3.91" for 100yr event Inflow = 15.86 cfs @ 11.98 hrs, Volume= 36,205 cf Outflow = 5.78 cfs @ 12.11 hrs, Volume= 36,205 cf, Atten= 64%, Lag= 8.0 min Discarded = 5.78 cfs @ 12.11 hrs, Volume= 36,205 cf Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 15 Peak Elev= 379.80' @ 12.11 hrs Surf.Area= 9,984 sf Storage= 9,101 cf Plug-Flow detention time= 11.5 min calculated for 36,167 cf(100% of inflow) Center-of-Mass det. time= 11.5 min ( 809.2 - 797.6 ) Volume Invert Avail.Storage Storage Description #1 378.00' 30,884 cf Custom Stage Data (Irregular)Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 378.00 1,292 156.0 0 0 1,292 379.00 5,304 296.0 3,071 3,071 6,333 380.00 11,368 426.0 8,146 11,217 13,811 381.00 29,363 798.0 19,667 30,884 50,050 Device Routing Invert Outlet Devices #1 Discarded 378.00' 25.000 in/hr Exfiltration over SurFace area #2 Primary 380.70' 70.0' long x 30.0' breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Discarded OutFlow Max=5.75 cfs @ 12.11 hrs HW=379.80' (Free Discharge) L1=Exfiltration (Exfiltration Controls 5.75 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=378.00' (Free Discharge) L2=Broad-Crested Rectangular Weir( Controls 0.00 cfs) Summary for Pond SMP-3: Bioretention Inflow Area = 66,306 sf, 59.80% Impervious, Inflow Depth = 4.91" for 100yr event Inflow = 11.33 cfs @ 11.96 hrs, Volume= 27,148 cf Outflow = 7.69 cfs @ 12.03 hrs, Volume= 27,148 cf, Atten= 32%, Lag= 4.0 min Primary = 7.69 cfs @ 12.03 hrs, Volume= 27,148 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 376.33' @ 12.04 hrs Surf.Area= 4,913 sf Storage= 5,159 cf Plug-Flow detention time= 50.2 min calculated for 27,120 cf(100% of inflow) Center-of-Mass det. time= 50.2 min ( 813.7 - 763.5 ) Volume Invert Avail.Storage Storage Description #1 375.00' 8,837 cf Custom Stage Data (Irregular)Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 375.00 2,912 363.0 0 0 2,912 376.00 4,417 389.0 3,638 3,638 4,513 377.00 6,022 413.0 5,199 8,837 6,096 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 16 Device Routing Invert Outlet Devices #1 Device 2 375.00' 2.000 in/hr Exfiltration over SurFace area #2 Primary 371.70' 12.0" Round Culvert L= 30.0' Ke= 0.500 Inlet/ Outlet Invert= 371.70' / 371.40' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #3 Device 2 375.50' 18.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=7.67 cfs @ 12.03 hrs HW=376.31' (Free Discharge) L2=Culvert (Inlet Controls 7.67 cfs @ 9.76 fps) �1=Exfiltration (Passes < 0.23 cfs potential flow) 3=0rifice/Grate (Passes < 7.66 cfs potential flow) Summary for Pond SMP-4: Infiltration Chambers Inflow Area = 75,892 sf, 84.87% Impervious, Inflow Depth = 5.57" for 100yr event Inflow = 14.22 cfs @ 11.96 hrs, Volume= 35,207 cf Outflow = 2.25 cfs @ 12.18 hrs, Volume= 35,207 cf, Atten= 84%, Lag= 13.2 min Discarded = 1.52 cfs @ 11.65 hrs, Volume= 33,644 cf Primary = 0.73 cfs @ 12.18 hrs, Volume= 1,563 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Peak Elev= 376.60' @ 12.18 hrs Surf.Area= 0.100 ac Storage= 0.254 af Plug-Flow detention time= 37.0 min calculated for 35,171 cf(100% of inflow) Center-of-Mass det. time= 37.0 min ( 785.1 - 748.1 ) Volume Invert Avail.Storage Storage Description #1A 373.00' 0.141 af 44.25'W x 98.91'L x 5.50'H Field A 0.553 af Overall - 0.201 af Embedded = 0.352 af x 40.0% Voids #2A 373.75' 0.201 af ADS StormTech MC-3500 d +Capx 78 Inside#1 Effective Size= 70.4"W x 45.0"H => 15.33 sf x 7.17'L = 110.0 cf Overall Size= 77.0"W x 45.0"H x 7.50'L with 0.33' Overlap 78 Chambers in 6 Rows Cap Storage= +14.9 cf x 2 x 6 rows = 178.8 cf 0.342 af Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 373.00' 15.000 in/hr Exfiltration over SurFace area #2 Primary 370.80' 12.0" Round Culvert L= 120.0' Ke= 0.500 Inlet/ Outlet Invert= 370.80' / 367.20' S= 0.0300 '/' Cc= 0.900 n= 0.013, Flow Area= 0.79 sf #3 Device 2 376.50' 4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #4 Device 2 375.00' 3.0" Vert. Orifice/Grate C= 0.600 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 17 Discarded OutFlow Max=1.52 cfs @ 11.65 hrs HW=373.12' (Free Discharge) L1=Exfiltration (Exfiltration Controls 1.52 cfs) Primary OutFlow Max=0.70 cfs @ 12.18 hrs HW=376.60' (Free Discharge) L2=Culvert (Passes 0.70 cfs of 7.96 cfs potential flow) �3=Sharp-Crested Rectangular Weir(Weir Controls 0.42 cfs @ 1.04 fps) 4=0rifice/Grate (Orifice Controls 0.29 cfs @ 5.85 fps) Summary for Pond SMP-5: Pocket Pond Inflow Area = 189,262 sf, 47.95% Impervious, Inflow Depth = 4.01" for 100yr event Inflow = 24.25 cfs @ 11.98 hrs, Volume= 63,280 cf Outflow = 9.79 cfs @ 12.16 hrs, Volume= 63,171 cf, Atten= 60%, Lag= 10.7 min Primary = 9.79 cfs @ 12.16 hrs, Volume= 63,171 cf Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Starting Elev= 367.50' Surf.Area= 3,809 sf Storage= 4,075 cf Peak Elev= 370.94' @ 12.16 hrs Surf.Area= 9,182 sf Storage= 26,735 cf (22,660 cf above start) Plug-Flow detention time= 215.8 min calculated for 59,035 cf(93% of inflow) Center-of-Mass det. time= 155.4 min ( 973.4 - 818.0 ) Volume Invert Avail.Storage Storage Description #1 366.00' 27,309 cf Custom Stage Data (Irregular)Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 366.00 1,737 237.0 0 0 1,737 367.00 3,051 319.0 2,363 2,363 5,376 368.00 4,650 386.0 3,823 6,186 9,151 369.00 6,255 412.0 5,433 11,619 10,850 370.00 7,955 438.0 7,088 18,707 12,659 371.00 9,267 456.0 8,603 27,309 14,015 Device Routing Invert Outlet Devices #1 Device 2 367.50' 3.0" Vert. Orifice/Grate C= 0.600 #2 Primary 367.00' 15.0" Round Culvert L= 125.0' Ke= 0.500 Inlet/ Outlet Invert= 367.00' / 365.75' S= 0.0100 '/' Cc= 0.900 n= 0.012, Flow Area= 1.23 sf #3 Device 2 370.00' 30.0" x 30.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #4 Device 2 368.75' 8.0" W x 4.0" H Vert. Orifice/Grate C= 0.600 Primary OutFlow Max=9.79 cfs @ 12.16 hrs HW=370.93' (Free Discharge) L2=Culvert (Barrel Controls 9.79 cfs @ 7.97 fps) 1=0rifice/Grate (Passes < 0.43 cfs potential flow) 3=0rifice/Grate (Passes < 29.09 cfs potential flow) 4=0rifice/Grate (Passes < 1.52 cfs potential flow) 201517 Post Development Type ll 24-hr 100yr Rainfa11=6.20" Prepared by The LA Group Printed 7/22/2021 HydroCAD� 10.00-26 s/n 00439 O 2020 HydroCAD Software Solutions LLC Paqe 18 Summary for Link AP-1: AP-1 Inflow Area = 67,534 sf, 20.37% Impervious, Inflow Depth = 3.88" for 100yr event Inflow = 9.81 cfs @ 11.97 hrs, Volume= 21,864 cf Primary = 9.81 cfs @ 11.97 hrs, Volume= 21,864 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Summary for Link AP-2: Existing Pond Inflow Area = 62,654 sf, 0.00% Impervious, Inflow Depth = 3.31" for 100yr event Inflow = 7.14 cfs @ 12.02 hrs, Volume= 17,267 cf Primary = 7.14 cfs @ 12.02 hrs, Volume= 17,267 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Summary for Link AP-3: AP-3 Inflow Area = 286,970 sf, 61.67% Impervious, Inflow Depth > 3.16" for 100yr event Inflow = 13.76 cfs @ 12.02 hrs, Volume= 75,573 cf Primary = 13.76 cfs @ 12.02 hrs, Volume= 75,573 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Summary for Link AP-4: AP-4 InflowArea = 432,182 sf, 7.17% Impervious, Inflow Depth = 2.24" for 100yr event Inflow = 25.43 cfs @ 12.11 hrs, Volume= 80,734 cf Primary = 25.43 cfs @ 12.11 hrs, Volume= 80,734 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Summary for Link AP-5: AP-5 Inflow Area = 14,583 sf, 0.00% Impervious, Inflow Depth = 3.35" for 100yr event Inflow = 1.93 cfs @ 11.97 hrs, Volume= 4,076 cf Primary = 1.93 cfs @ 11.97 hrs, Volume= 4,076 cf, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs Attachment D Storm Data Job Name and# Saratoga Hospital- Myrtle Street Minimum Runoff Reduction Volume 7/22/2021 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) Speci�c Reduction Factor(S) A=0.55, B=0.40, C=0.30, D=0.20 S (HSG A,C) 0.325 (10% A Soils, 90% C Soils) Aic 4.30 acres Rv (Minimum 0.2) 0.95 90%Rainfall 1.15 Ai 1.398 RRv = 0127 acre feet= 5,543 ft3 Stormwater Practice Sizing Job Name and# Saiatoga Hospital Myrtle Street Water Quality Volume Calculation 7/22/2021 W Qv=[(P)(Rv)(A)]/12 l�'here: Rv=0.05+0.009(I) I=impervious covei in percent P=90%rainfall(see Figure 4.1 in NYS Stormwater Management Design Manual) A=Area in acres Required WQv New Impercious %Impervious 100.00% Rv 0.95 90%Rainfall L15 Aiea in Squaie Feet 187,320 W Qv Required= 17054 fr' 0.392 aafr Disturbed Impervious %Impervious 100.00% Rv 0.95 90%Rainfall L15 Aiea in Square Feet 29,447 W Qv Calculated= 2681 fr' 0.062 aafr 25%WQv Required= 670 fr' 0.015 aafr Total W Qv Required= 17724�' 0.407 aafr Calculated WQv SDZP-1 Green Roof %Impervious 100.00% Rv 0.95 90%Rainfall L15 Area in Squaie Feet 21,817 W Qv Calculated= 1986 fr3 0.046 aafr SMP-2 Infiltration basin %Impervious 2133% Rv 024 90%Rainfall L15 Aiea in Squaie Feet 111,111 W Qv Calculated= 2577 fr' 0.059 aafr SMP-3 Bioretention Basin %Impervious 59.80% Rv 059 90%Rainfall L15 Aiea in Square Feet 66,306 W Qv Calculated= 3738 fr' 0.086 aafr SMP-4 IInderground Infiltration Chambers %Impervious 84.87% Rv 0.81 90%Rainfall L 15 Areain Squaie Feet 75,892 W Qv Calculated= 5919 fr' 0136 aafr SMP-5 Pocket Pond %Impervious 41.57% Rv 0.42 90%Rainfall L 15 Area in Square Feet 122,956 W Qv Calculated= 4998 fr' 0115 aafr Note:Area being ueated by birretention basin not included in calculation Job Name Tait Lane Reserve Channel Protection Volume Calculation 5/8/2020 Revised: 1/5/2021 Pre Development Step 1: Determine Qu P = 2.15 in. (1-yr. storm) Area= 19.8 acres CN = 72 Ia= 0.778 Ia/P = 0.36 Tc = 0.33 Hrs. Using Figure 4-II, TR-55 and Tc, determine Qu(csm/in) Qu= 500 csm/in Sten 2: Determine Oo/Oi Using Figure B-1, DEC Manual Appendix B for T=24 hrs. and Qu, determine Qo/Qi Qo/Qi = 0.035 Sten 3: Determine Vs/Vr Vs/Vr= 0.682 - 1.43(Qo/Qi)+ 1.64 (Qo/Qi)^2- 0.804 (Qo/Qi)^3 Vs/Vr= 0.634 Sten 4: Determine Qd Using Figure 2.1, TR-55 or SCS TR-16 and P, determine Qd(in of runof� Qd= 0.4 in Step 5: Determine Cpv Area= 19.80 acres Cpv =Vs = (Vs/Vr) * Qd* A/12 Cpv = 0.418 ac-ft Cpv = 18225 ft3 Cpv Req.= 18225 ft3 Job Name Tait Lane Reserve Channel Protection Volume Calculation 5/8/2020 Revised: 4/5/2021 Steu l: Determine Qu P = 215 in. (1-yr. storm) Area= 19.8 acres CN= 77 Ia= 0.597 Ia/P= 028 Tc= 027 Hrs. Using Figure 4-II,TR-55 and Tc,determine Qu(csm/in) Qu= 600 csm/in Steu 2:Determine Oo/Oi Using Figure B-1,DEC Manual Appendix B for T=24 hrs. and Qu,determine Qo/Qi Qo/Qi= 0.04 Steu 3:Determine Vs/Vr Vs/Vr=0.682 - 1.43(Qo/Qi)+ 1.64 (Qo/Qi)^2-0.804(Qo/Qi)^3 Vs/Vr= 0.627 Steu 4:Determine Qd Using Figure 21,TR-55 or SCS TR-16 and P,determine Qd(in of runof� Qd= 0.5 in Steu 5:Determine Cuv Area= 19.80 acres Cpv=Vs=(Vs/Vr) * Qd* A/12 Cpv= 0.518 ac-ft Cpv= 22546 ft' Pre Dev 18225 ft' CPv Required= 4321 ft3 Volume reduction achieved through green infrastructure SMP 1 = 1986 ft3 SMP 2= 2577 ft3 SMP 3 = 3738 ft3 SMP 4= 5919 ft3 SMP 5 = 4998 ft3 Cpv Provided= 19217 ft3 Appendix C Map Set Appendix D SWPPP Inspection Form Saratoga Hospital- Myrtle Street WEEKLY SWPPP INSPECTION REPORT Ins ector Name: Date: Si nature re uired : Time: Weather: Ins ection #: Soil Conditions dr , 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? �• ❑ ❑ ❑ 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. 11. 12. STORM WATER POLLUTION PREVENTION PLAN PLAN CHANGES, AUTHORIZATION, AND CHANGE CERTIFICATION CHANGES REQUIRED TO THE POLLUTION PREVENTION PLAN: REASONS FOR CHANGES: REQUESTED BY: DATE: AUTHORIZED BY: DATE: CERTIFICATION OF CHANGES: I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that false statements made herein are punishable as a Class A misdemeanor pursuant to Section 210.45 of the penal code. SIGNATURE: DATE: SPILL RESPONSE REPORT Within 1 hour of a spill discovery less than 2 gallons in volume the following must be notified: Kevin Ronayne (518) 580-2452 Within 1 hour of a spill discovery greater than 2 gallons the following must be notified: Kevin Ronayne 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 :� 3 NEWY�RK p�partmenxa[ PREFACE ,`� _ �`i<'+n�,�.n: En�irAnrnental - �r� Canservaiian � Pursuant to Section 402 of the Clean Water Act("CWA"),stormwater discharges from certain cons[ruc[ion activi[ies are unlawful unless they are authorized by a National NEVJ V[7f1k�TATE Pollu[an[Discharge Elimina[ion System("NPDES')permit or by a state permit program. S�EPARTMSNT�pF ENVIROM1FMEN7AL C��NSERVF�TI�N New York administers the approved State Pollutant Discharge Elimination System (SPDES)program with permits issued in accordance with the New York State SP�€5 GENERAL PEk�MIT Environmental Conservation Law(ECL)Article 17,Titles 7,8 and Article 70. FQR ST�RM1AWA"f�R OkSCHAftGES From An owneroropera[orof a construction activitythat is eligible for coverage under this permit must obtain coverage prior to the commencemen[of cons[ruc[ion ac[iviry. CONSFRLICTIOW RGIIVIYY Activities that fitthe definition of"construction activi[y',as defined under 40 CFR 122.26(b)(14)(x),(15)(i),and(15)(ii),constitute construction of a poin[source and Perrni[No,GP-q-2{7-fl01 therefore,pursuantto ECL section 17-0505 and 17-0701,the owneroropera[ormust have coverage under a SPDES permit prior to commencing conshuc[ion ac[ivity.The Issucd 4��ir=_uani la Artiole 17,Titlas 7.8 and Art�cle 70 owneroroperatorcannotwait until there is an actual discharge from the consfruc[ion si[e of ihe Enwranmenlal Gonaervat�an Law to obtain permit coverage. *Note:The italicized words/phrases within this permit are defined in Appendix A. Effecnve C�ate .l�anuary:'g,2a2U Exp�fat�on 6d[8..lanud�l=�.��1L°+ J[�lan J F[-rrg�:snn ChieF Pem'ii1 Adrr�inistra',vr 4'--l-��{ - _ --- - �� - /5ulhanx�:d Segnalure +� �73te A��Jre�:s HYS 13�C IJivisivn df Envir4nrnan9al Peimils 625 Rrv3tlway.Aih Fleor A�6anv.Iti Y 1.^,233-1 i5[] NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION K. Requirementto Obtain Coverage Under an Alternative Permit...........................35 SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM L. Proper Operation and Maintenance....................................................................36 CONSTRUCTION ACTIVITIES M. Inspection and Entry...........................................................................................36 N. PermitActions.....................................................................................................37 Table of Contents o. oefinitions...........................................................................................................37 P. Re-OpenerClause..............................................................................................37 Part 1.PERMIT COVERAGE AND LIMITATIONS.............................................................1 Q� Penalties for Falsification of Forms and Reports.................................................37 A. PermitApplication.................................................................................................1 R. Other Permits......................................................................................................38 B. Effluent Limitations Applicable to Discharges from Construction Activities...........1 APPENDIX A—Acronyms and Definitions.......................................................................39 C. Post-construction Stormwater Management Practice Requirements....................4 Acronyms......................................................................................................................39 D. Maintainin Water Qualit .. . . . . 8 Definitions.....................................................................................................................40 9 Y............................................................................... APPENDIX B—Required SWPPP Components by Project Type....................................48 E. Eligibility UnderThis General Permit.....................................................................9 F. Activities Which Are Ineligible for Coverage Under This General Permit..............9 Table 1..........................................................................................................................48 Table2..........................................................................................................................50 Part II.PERMIT COVERAGE...........................................................................................12 APPENDIX C—Watersheds Requiring Enhanced Phosphorus Removal........................52 A. How to Obtain Coverage.....................................................................................12 APPENDIX D—Watersheds with Lower Disturbance Threshold.....................................58 B. Notice of Intent(NOI)Submittal..........................................................................13 APPENDIX E—303(d)Segments Impaired by Construction Related Pollutant(s)...........59 C. PermitAuthorization............................................................................................13 . D. General Requirements For Owners or Operators With Permit Coverage...........15 APPENDIX F—List of NYS DEC Regional Offices..........................................................65 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 ProjectType.................................................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. DutytoMitigate...................................................................................................33 F. Duty to Provide Information.................................................................................33 G. Other Information................................................................................................33 H. Signatory Requirements......................................................................................33 I. PropertyRights...................................................................................................35 J. Severability..........................................................................................................35 (Parc i) Part 1.PERMIT COVERAGE AND LIMITATIONS (��rc�.B.�� deviation or alternative design and provide information which demonstrates that A. Permit Application the deviation or alternative design is equivalent to the technical standard. This permit authorizes stormwater discharges to surface waters of[he Sta[e from a. Erosion and Sediment Controls.Design,install and maintain effective the following cons[ruc[ion ac[ivi[ies identified within 40 CFR Parts 12226(b)(14)(x), erosion and sediment controls to minimize the discharge of pollutan[s and 12226(b)(15)(i)and 122.26(b)(15)(ii),provided all of the eligibility provisions of this prevent a violation of the wa[er quality s[andards.At a minimum,such permit are met: controls must be designed,installed and maintained to: 1. Cons[ruc[ion activities involving soil disturbances of one(1)or more acres; (i) Minimize soil erosion through application of runoff control and soil including disturbances of less than one acre that are part of a largercommon stabilization control measure to minimize pollu[an[discharges; plan ofdevelopmen[or sale that will ultimately disturb one or more acres of land;excluding rou[ine maintenance ac[iviry that is pertormed to maintain the (ii) Control stormwater discharges,including both peak flowrates and total original line and grade,hydraulic capacity or original purpose of a facility; stormwater volume,to minimize channel and streambank erosion and scour in the immediate vicinity of the discharge points; 2. Cons[ruc[ion ac[ivi[ies involving soil disturbances of less than one(1)acre where the Department has determined that a SPDES permit is required for (iii) Minimize the amount of soil exposed during cons[ruc[ion ac[iviry; stormwater discharges based on the potential for contribution to a violation of a water quality s[andard or for significant contribution of pollu[ants to surface (iv) Minimize the disturbance of s[eep slopes; waters of the S[a[e. (v) Minimize sediment discharges from the site; 3. Construc[ion activities located in the watershed(s)identified in Appendix D that involve soil disturbances between five thousand(5,000)square feet and one (vi) Provide and maintain na[ural buffers around surtace waters,direct (1)acre of land. stormwater to vegetated areas and maximize stormwater infiltration to reduce pollutan[discharges,unless infeasible; B. Effluent Limitations Applicable to Discharges from Construction Activities (vii) Minimize soil compaction.Minimizing soil compaction is not required where the intended function of a specific area of the site dictates that it Discharges authorized by this permit must achieve, at a minimum, the effluent be compacted; limitations in Part I.B.1.(a)—(f)of this permit.These limitations representthe degree of effluent reduction attainable by the application of best practicable technology currently (viii)Unless infeasible,preserve a sufficient amount of topsoil to complete available. soil restoration and establish a uniform,dense vegetative cover;and 1. ErosionandSedimentControlRequirements-Theowneroroperatormust select,design,install,implement and maintain control measures to minimize (ix) Minimize dust.On areas of exposed soil,minimize dust through the the discharge of pollu[an[s and prevent a violation of the wa[er quality appropriate application of water or other dust suppression techniques s[andards.The selection,design,installation,implementation,and to control the generation of pollutants that could be discharged from maintenance of these control measures must meet the non-numeric effluent the site. 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 b. Soil Stabilization.In areas where soil disturbance activity has temporarily Control,dated November 2016,using sound engineering judgment.Where or permanently ceased,the application of soil stabilization measures must control measures are not designed in conformance with the design criteria be initiated by the end of the next business day and completed within included in the technical standard,the owneroroperator must include in the fourteen(14)days from the date the current soil disturbance activity ceased. S[ormwa[er Pollu[ion Preven[ion Plan("SWPPP")the reason(s)for the For construction sites that direc[ly discharge to one of the 303(d)segments 1 2 (Parc i e�.e) (Parc i.e.�.e.�iip listed in Appendix E or is located in one of the watersheds listed in (iii) Fuels,oils,or other pollutan[s used in vehicle and equipment operation Appendix C,the application of soil stabilization measures must be initiated and maintenance; 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 (iv) Soaps or solvents used in vehicle and equipment washing;and for definition of Temporarily Ceased. (v) Toxic or hazardous substances from a spill or other release. c. Dewatering.Discharges from dewatering activities,including discharges from dewa[ering of trenches and excavations,must be managed by f. Surtace Outlets.When discharging from basins and impoundments,the appropriate control measures. outlets shall be designed,constructed and maintained in such a manner that sediment does not leave the basin or impoundment and that erosion at d. Pollution Prevention Measures.Design,install,implement,and maintain or below the outlet does not occur. effective pollution prevention measures to minimize the discharge of C. Post-construction Stormwater Management Practice Requirements pollu[an[s and prevent a violation of the water quality s[andards.At a minimum,such measures must be designed,installed,implemented and 1. The owneroropera[orof a construc[ion ac[ivitythat requires post-construction maintained to: stormwater management practices pursuant to Part III.C.of this permit must select,design,install,and maintain the practices to meetthe performance (i) Minimize the discharge of pollutants from equipment and vehicle cri[eria in the New York State Stormwater Management Design Manual washing,wheel wash water,and other wash waters.This applies to ("Design Manual"),dated January 2015,using sound engineering judgment. washing operations that use clean water only.Soaps,detergents and Where post-construction stormwater management practices("SMPs")are not solvents cannot be used; designed in conformance with the performance cri[eria in the Design Manual, the owner or opera[or must include in the SWPPP the reason(s)for the (ii) Minimize the exposure of building materials,building products, deviation or alternative design and provide information which demonstrates that construction wastes,trash,landscape materials,fertilizers,pesticides, the deviation or alternative design is equivalen[to the technical standard. herbicides,detergents,sanitary waste,hazardous and toxic waste,and other materials present on the site to precipitation and to stormwater. 2. The owneror opera[or of a cons[ruction activiry that requires post-construction Minimization of exposure is not required in cases where the exposure stormwater management practices pursuantto Part III.C.of this permit must to precipitation and to stormwater will not result in a discharge of design the practices to meet the applicable sizing criteria in Part I.C.2.a.,b.,c. pollutan[s,or where exposure of a specific material or product poses or d.of this permit. little risk of stormwater contamination(such as final products and materials intended for outdoor use);and a. Sizing Criteria for New Development (iii) Prevent the discharge of pollutants from spills and leaks and (i) Runoff Reduction Volume("RRv"): Reduce the total Water Quality implement chemical spill and leak prevention and response Volume("WQv")by application of RR techniques and standard SMPs procedures. with RRv capacity.The total WQv shall be calculated in accordance with the criteria in Section 4.2 of the Design Manual. e. Prohibited Discharges.The following discharges are prohibited: (ii) Minimum RRv and Treatment of Remaining Total WQv:Construction (i) Wastewater from washout of concrete; 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 (ii) Wastewater from washout and cleanout of stucco,paint,form release impervious areas to a RR technique or standard SMP with RRv oils,curing compounds and other construction materials; capacity unless infeasible.The specific site limitations that preventthe reduction of 100%of the WQv shall be documented in the SWPPP. 3 4 (Parc i.cza.�ii) (Parc i c z.e i) For each impervious area that is not directed to a RR technique or calculated in accordance with the criteria in Section 10.3 of the Design standard SMP with RRv capacity,the SWPPP must include Manual. documentation which demonstrates that all options were considered and for each option explains why it is considered infeasible. (ii) Minimum RRv and Treatment of Remaining Total WQv:Cons[ruc[ion In no case shall the runoff reduction achieved from the newly ac[ivi[ies that cannot meet the criteria in Part I.C.2.b.(i)of this permit constructed impervious areas be less than the Minimum RRv as due to si[e limi[a[ions shall direct runoff from all newly constructed calculated using the criteria in Section 4.3 of the Design Manual. impervious areas to a RR technique or standard SMP with RRv The remaining portion of the total WQv that cannot be reduced shall be capacity unless infeasible.The specific si[e limi[a[ions that prevent the treated by application of standard SMPs. 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 (iii) Channel Protection Volume("Cpv"):Provide 24 hour extended standard SMP with RRv capacity,the SWPPP must include detention of the post-developed 1-year,24-hour storm event; documentation which demonstrates that all options were considered remaining after runoff reduction.The Cpv requirement does not apply and for each option explains why it is considered infeasible. when: In no case shall the runoff reduction achieved from the newly (1)Reduction of the entire Cpv is achieved by application of runoff constructed impervious areas be less than the Minimum RRv as reduction techniques or infiltration systems,or calculated using the criteria in Section 10.3 of the Design Manual. (2)The site discharges directly to tidal waters,or fifth order or larger The remaining portion of the total WQv that cannot be reduced shall be streams. treated by application of standard SMPs. (iv) Overbank Flood Control Criteria("Qp"):Requires storage to attenuate (iii) Channel Protection Volume(Cpv):Provide 24 hour extended detention the post-development 10-year,24-hour peak discharge rate(Qp)to of the post-developed 1-year,24-hour storm event;remaining after predevelopment rates.The Qp requirement does not apply when: runoff reduction.The Cpv requirement does not apply when: (1)the site discharges directly to tidal waters or fifth order or larger (1)Reduction of the entire Cpv is achieved by application of runoff streams,or reduction techniques or infiltration systems,or (2)A downstream analysis reveals that overbank control is not (2)The site discharges directly to tidal waters,or fifth order or larger required. streams. (v) Extreme Flood Control Criteria("Qf"):Requires storage to attenuate (iv) Overbank Flood Control Criteria(Qp):Requires storage to attenuate the post-development 100-year,24-hour peak discharge rate(Qf)to the post-development 10-year,24-hour peak discharge rate(Qp)to predevelopment rates.The Qf requirement does not apply when: predevelopment rates.The Qp requirement does not apply when: (1)the site discharges directly to tidal waters or fifth order or larger (1)the site discharges directly to tidal waters or fifth order or larger streams,or streams,or (2)A downstream analysis reveals that overbank control is not (2)A downstream analysis reveals that overbank control is not required. required. b. Sizing Criteria for New Development in Enhanced Phosphorus (v) Extreme Flood Control Criteria(Qf):Requires storage to attenuate the Removal Watershed post-development 100-year,24-hour peak discharge rate(Qf)to predevelopment rates.The Qf requirement does not apply when: (i) Runoff Reduction Volume(RRv): Reduce the total Water Quality (1)the site discharges directly to tidal waters or fifth order or larger Volume(WQv)by application of RR techniques and standard SMPs streams,or with RRv capacity.The total WQv is the runoff volume from the 1-year, (2)A downstream analysis reveals that overbank control is not 24 hour design storm over the post-developed watershed and shall be required. 5 6 (Pam cz.q (Pam cz.d) c. Sizing Criteria for Redevelopment Activity d. Sizing Criteria for Combination of Redevelopment Activity and New Development (i) Water Quality Volume(WQv):The WQv treatment objective for Construction projects that include both New Development and Redevelopment redevelopmen[ac[ivity shall be addressed by one of the following Activity shall provide post-construction stormwater management controls that options.Redevelopmen[activities located in an Enhanced Phosphorus Removal Watershed(see Part III.B.3.and Appendix C of this permit) meet the sizing criteria calculated as an aggregate of the Sizing Criteria in Part shall calculate the WQv in accordance with Section 10.3 of the Design I.C.2.a.or b.of this permit for the New Development portion of the project and Manual.All other redevelopment ac[ivi[ies shall calculate the WQv in Part I.C.2.c of this permitfor RedevelopmentActivity portion of the project. accordance with Section 42 of the Design Manual. (1)Reduce the existing impervious cover by a minimum of 25%of the D. Maintaining Water Quality total disturbed, impervious area. The Soil Restoration criteria in Section 5.1.6 of the Design Manual must be applied to all newly The Department expects that compliance with the conditions of this permit will control created pervious areas,or discharges necessary to meet applicable wa[er quality standards.It shall be a violation (2)Capture and treat a minimum of 25%of the WQv from the disturbed, of the ECL for any discharge to either cause or contribute to a violation of wa[er quality impervious area by the application of standard SMPs;or reduce 25% s[andards as contained in Parts 700 through 705 of Title 6 of the Official Compilation of of the WQv from the disturbed,impervious area by the application of Codes,Rules and Regulations of the State of New York,such as: RR techniques or standard SMPs with RRv capacity.,or (3)Capture and treat a minimum of 75%of the WQv from the disturbed, 1. There shall be no increase in turbidity thatwill cause a substantial visible contrast impervious area as well as any additional runoff from tributary areas to natural conditions; by application of the alternative practices discussed in Sections 9.3 and 9.4 of the Design Manual.,or 2. There shall be no increase in suspended,colloidal or settleable solids that will (4)Application of a combination of 1, 2 and 3 above that provide a cause deposition or impair the waters for their best usages;and weighted average of at least two of the above methods.Application of this method shall be in accordance with the criteria in Section 92.1(B)(IV)of the Design Manual. 3. There shall be no residue from oil and floating substances,nor visible oil film,nor globules of grease. If there is an existing post-construction stormwater management practice located on the site that captures and treats runoff from the If there is evidence indicating that the stormwater discharges authorized by this permit impervious area that is being disturbed, the WQv treatment option are causing,have the reasonable potential to cause,or are contributing to a violation of selected must,at a minimum,provide treatment equal to the treatment the wa[er quality s[andards;the owner or opera[or must take appropriate corrective that was being provided by the existing practice(s)if that treatment is action in accordance with Part IV.C.5. of this general permit and document in greater than the treatment required by options 1—4 above. accordance with Part IV.C.4. of this general permit. To address the water quality s[andard violation the owner or opera[or may need to provide additional information, (ii) Channel Protection Volume(Cpv): Not required if there are no include and implement appropriate controls in the SWPPP to correct the problem,or changes to hydrology that increase the discharge rate from the project obtain an individual SPDES permit. site. 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 (iii) Overbank Flood Control Criteria(Qp):Not required if there are no permit are causing or contributing to a violation of wa[er quality standards,or if the changes to hydrology that increase the discharge rate from the project Department determines that a modification of the permit is necessary to prevent a site. violation of wa[er qualiry s[andards,the authorized discharges will no longer be eligible for coverage underthis permit. The Department may require the owneroropera[orto (iv) Extreme Flood Control Criteria(Qf):Not required if there are no obtain an individual SPDES permitto continue discharging. changes to hydrology that increase the discharge rate from the project site 7 8 (Parc i.e) (Parc i F a) E. Eligibility Under This General Permit opera[or has obtained a permit issued pursuantto 6 NYCRR Part 182 forthe project or the Department has issued a letter of non-jurisdiction for the project. 1. This permit may authorize all discharges of stormwaterfrom cons[ruc[ion All documentation necessary to demonstrate eligibility shall be maintained on activity to surface waters of[he S[a[e and groundwa[ers except for ineligible site in accordance with Part II.D.2 of this permit; discharges identified under subparagraph F.of this Part. 5. Discharges which either cause or contribute to a violation of water qualiry 2. Except for non-stormwater discharges explicitly listed in the next paragraph, standards adopted pursuant to the ECL and its accompanying regulations; this permit only authorizes stormwater discharges;including stormwater runoff, snowmelt runoff,and surtace runoff and drainage,from construc[ion ac[ivi[ies. 6. Construction activities for residential,commercial and institutional projects: 3. Notwithstanding paragraphs E.1 and E2 above,the following non-stormwater a. Where the discharges from the cons[ruc[ion activities are tributary to waters discharges are authorized by this permit: those listed in 6 NYCRR 750- of the state classified as AA or AA-s;and 1.2(a)(29)(vi),with the following exception:"Discharges from firefighting activities are authorized only when the firefighting activities are b. Which are undertaken on land with no existing impervious cover,and emergencies/unplanned";waters to which other components have not been added that are used to control dust in accordance with the SWPPP;and c. Which disturb one(1)or more acres of land designated on the current uncontaminated discharges from construction site de-watering operations.All United States Department of Agriculture("USDA")Soil Survey as Soil non-stormwater discharges must be identified in the SWPPP. Under all Slope Phase"D",(provided the map unit name is inclusive of slopes greater circumstances,the owneror opera[or must still comply with water quality than 25%),or Soil Slope Phase"E"or"F"(regardless of the map unit s[andards in Part I.D of this permit. name),or a combination of the three designations. 4. The owneroropera[or must maintain permit eligibility to discharge under this 7. Cons[ruction activi[ies for linear transportation projects and linear utility permit. Any discharges that are not compliant with the eligibility conditions of projects: this permit are not authorized by the permit and the owneroroperator must either apply for a separate permitto cover those ineligible discharges ortake a. Where the discharges from the construction ac[ivities are tributary to waters steps necessary to make the discharge eligible for coverage. of the state classified as AA or AA-s;and F. Activities Which Are Ineligible for Coverage Under This General Permit b. Which are undertaken on land with no existing impervious cover,and All of the following are not authorized by this permit: 1. Discharges after cons[ruc[ion ac[ivities have been completed and the site has c.Which disturb two(2)or more acres of land designated on the current USDA undergone final s[abiliza[ion; 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 2. Discharges that are mixed with sources of non-stormwater other than those unit name),or a combination of the three designations. 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. Cons[ruc[ion activi[ies or discharges from construc[ion ac[ivi[ies that may adversely affect an endangered or threa[ened species unless the owneror 9 10 (Parc i F.a) (Parc i.F a.q 8. Cons[ruction ac[ivi[ies that have the potential to affect an his[oric property, (i) No Affect unless there is documentation that such impacts have been resolved.The (ii) No Adverse Affect following documentation necessary to demonstrate eligibility with this (iii) Executed Memorandum of Agreement,or requirement shall be maintained on site in accordance with Part II.D.2 of this permit and made available to the Department in accordance with Part VII.F of d. Documentation that: this permit: (i) SHPA Section 14.09 has been completed by NYS DEC or another state a. Documentation that the cons[ruc[ion ac[ivity is not within an archeologically agency. sensitive area indicated on the sensitivity map,and that the cons[ruc[ion ac[ivity is not located on or immediately adjacent to a property listed or 9. Discharges from conshuc[ion ac[ivi[ies that are subject to an existing SPDES determined to be eligible for listing on the National or State Registers of individual or general permit where a SPDES permitfor construc[ion activity has Historic Places,and that there is no new permanent building on the been terminated or denied;or where the owneroroperatorhas failed to renew cons[ruction site within the following distances from a building,structure,or an expired individual permit. object that is more than 50 years old,or if there is such a new permanent building on the cons[ruc[ion si[e within those parameters that NYS Office of Parks,Recreation and Historic Preservation(OPRHP),a Historic Part II.PERMIT COVERAGE Preservation Commission of a Certified Local Government,or a qualified A. How to Obtain Coverage preservation professional has determined that the building,structure,or object more than 50 years old is not historically/archeologically significant. 1. An owneror opera[or of a cons[ruc[ion ac[iviry that is not subject to the requirements of a regulated,traditional land use control MS4 must first prepare • 1-5 acres of disturbance-20 feet a SWPPP in accordance with all applicable requirements of this permit and • 5-20 acres of disturbance-50 feet then submit a completed Notice of Intent(NOI)to the Department to be • 20+acres of disturbance-100 feet,or authorized to discharge under this permit. b. DEC consultation form sent to OPRHP,and copied to the NYS DEC Agency 2. An owneror operator of a construction ac[iviry that is subject to the Historic Preservation Officer(APO),and requirements of a regulated,[radi[ional land use control MS4 must first prepare (i) the State Environmental Quality Review(SEQR)Environmental a SWPPP in accordance with all applicable requirements of this permit and Assessment Form(EAF)with a negative declaration or the Findings then have the SWPPP reviewed and accepted by the regula[ed,[raditional land Statement,with documentation of OPRHP's agreement with the use con[rol MS4 prior to submitting the NOI to the Department.The owner or resolution;or opera[orshall have the"MS4 SWPPP Acceptance"form signed in accordance (ii) documentation from OPRHP thatthe cons[ruction activirywill result in with Part VII.H.,and then submitthatform along with a completed NOI to the No Impact;or Department. (iii) documentation from OPRHP providing a determination of No Adverse Impact;or 3. The requirementfor an owneroroperatorto have its SWPPP reviewed and (iv) a Letter of Resolution signed by the owner/operator,OPRHP and the accepted by the regula[ed,[radi[ional land use con[rol MS4 prior to submitting DEC APO which allows for this cons[ruc[ion ac[ivity to be eligible for the NOI to the Department does not apply to an owner or operatorthat is coverage under the general permit in terms of the State Historic obtaining permit coverage in accordance with the requirements in Part II.F. Preservation Act(SHPA);or (Change of Owner or Opera[or)or where the owner or operatorof the construction ac[ivity is the regula[ed,[raditional land use conhol MS4. This c. Documentation of satisfactory compliance with Section 106 of the National exemption does not apply to cons[ruc[ion activi[ies subject to the New York City Historic Preservation Actfor a coterminous project area: Administrative Code. 11 12 (Parcu e) (Parcu cz.e) B. Notice of Intent(NOI)Submittal must submit a preliminary SWPPP to the appropriate DEC Permit Administrator atthe Regional Office listed in Appendix F atthe time all other 1. Prior to December 21,2020,an owner or operator shall use either the necessary UPA permit applications are submitted.The preliminary SWPPP electronic(eN01)or paperversion of the NOI thatthe Department prepared. must include sufficient information to demonstrate thatthe cons[ruc[ion Both versions of the NOI are located on the DepartmenYs website ac[ivityqualifies for authorization under this permit, (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 c. the final SWPPP has been prepared,and address: d. a complete NOI has been submitted to the Department in accordance with NOTICE OF INTENT the requirements of this permit. NYS DEC,Bureau of Water Permits 625 Broadway,4�^Floor 3. An owneroroperatorthat has satisfied the requirements of Part II.C.2 above Albany,New York 12233-3505 will be authorized to discharge stormwater from their cons[ruc[ion activiry in accordance with the following schedule: 2. Beginning December 21, 2020 and in accordance with EPA's 2015 NPDES Electronic Reporting Rule(40 CFR Part 127),the owneroropera[ormust submit a. For cons[ruc[ion activities that are not subject to the requirements of a the NOI electronically using the Departmen['s online NOI. regulated,traditional land use control MS4: 3. The owner or opera[or shall have the SWPPP preparer sign the "SWPPP Preparer Certification"statement on the NOI prior to submitting the form to the (i) Five(5)business days from the date the Department receives a Department. complete electronic version of the NOI(eN01)for cons[ruc[ion ac[ivi[ies with a SWPPP that has been prepared in conformance with the design 4. As of the date the NOI is submitted to the Department,the owner or operator criteria in the technical standard referenced in Part III.B.1 and the shall make the NOI and SWPPP available for review and copying in accordance performance cri[eria in the technical standard referenced in Parts III.B., with the requirements in Part VII.F.of this permit. 2 or 3,for construction ac[ivi[ies that require post-construction stormwater management practices pursuant to Part III.C.;or C. PermitAuthorization (ii) Sixty(60)business days from the date the Department receives a 1. An owneror opera[or shall not commence cons[ruc[ion ac[ivity until their complete NOI(electronic or paper version)for cons[ruc[ion ac[ivi[ies authorization to discharge under this permit goes into effect. 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 2. Authorization to discharge under this permit will be effective when the owneror construction ac[ivi[ies that require post-construction stormwater operator has satisfied all of the following criteria: management practices pursuant to Part III.C.,the performance criteria in the technical standard referenced in Parts III.B.,2 or 3,or; a. project review pursuant to the State Environmental Quality Review Act ("SEQRA")have been satisfied,when SEQRA is applicable.See the (iii) Ten(10)business days from the date the Department receives a DepartmenYs website(http://www.dec.nv.aov/)for more information, complete paper version of the NOI for cons[ruc[ion ac[ivi[ies with a SWPPP that has been prepared in conformance with the design b. where required,all necessary Department permits subjectto the Uniform criteria in the technical standard referenced in Part III.B.1 and the Procedures Ac[("UPA")(see 6 NYCRR Part 621),or the equivalent from pertormance cri[eria in the technical standard referenced in Parts III.B., another New York State agency,have been obtained,unless otherwise 2 or 3,for cons[ruc[ion ac[ivi[ies that require post-construction notified by the Department pursuant to 6 NYCRR 621.3(a)(4).Owners or stormwater management practices pursuant to Part I I I.C. opera[ors of cons[ruc[ion ac[ivi[ies that are required to obtain UPA permits 13 14 (Part II C 3.b) (Part II.D 3) b. For cons[ruc[ion ac[ivities that are subject to the requirements of a use con[rol MS4,the regula[ed,haditional land use conhol MS4(provided the regulated,[raditional land use con[rol MS4: regulated,[raditional land use con[rol MS4 is not the owner or operator of the construc[ion ac[ivity).At a minimum,the owneror opera[or must comply with (i) Five(5)business days from the date the Department receives both a the following requirements in order to be authorized to disturb greater than five complete electronic version of the NOI(eN01)and signed"MS4 (5)acres of soil at any one time: SWPPP Acceptance"form,or a. The owneroroperatorshall have a qualified inspectorconduct at least two (ii) Ten(10)business days from the date the Department receives both a (2)site inspections in accordance with Part IV.C.of this permit every seven complete paper version of the NOI and signed"MS4 SWPPP (7)calendar days,for as long as greater than five(5)acres of soil remain Acceptance"form. disturbed.The two(2)inspections shall be separated by a minimum of two (2)full calendar days. 4. Coverage under this permit authorizes stormwater discharges from only those areas of disturbance that are identified in the NOI.If an owneroroperator b. In areas where soil disturbance activity has temporarily or permanently wishes to have stormwater discharges from future or additional areas of ceased,the application of soil stabilization measures must be initiated by disturbance authorized,they must submit a new NOI that addresses that phase the end of the next business day and completed within seven(7)days from of the development,unless otherwise notified by the Department.The owneror the date the current soil disturbance activity ceased.The soil stabilization operator shall not commence cons[ruc[ion ac[ivity on the future or additional measures selected shall be in conformance with the technical standard, areas until their authorization to discharge under this permit goes into effect in New York State Standards and Specifications for Erosion and Sediment accordance with Part II.C.of this permit. Control,dated November 2016. D. General Requirements For Owners or Operators With Permit Coverage c. The owneroroperatorshall prepare a phasing plan that defines maximum 1. The owneroropera[orshall ensure thatthe provisions of the SWPPP are disturbed area per phase and shows required cuts and fills. implemented from the commencemen[ofcons[ruc[ion ac[ivity until all areas of d. The owneroroperatorshall install any additional site-specific practices disturbance have achieved final stabilization and the Notice of Termination needed to protectwater quality. ("NOT")has been submitted to the Department in accordance with Part V.of this permit.This includes any changes made to the SWPPP pursuantto Part e. The owneroroperatorshall include the requirements above in their III.A.4.of this permit. SWPPP 2. The owneror opera[or shall maintain a copy of the General Permit(GP-0-20- 4. In accordance with statute,regulations,and the terms and conditions of this 001),NOI,NOI Acknowledgmen[Le[ter,SWPPP,MS4 SWPPP Acceptance permit,the Department may suspend or revoke an owner's oroperator's form,inspection reports,responsible contractor's or subcontractor's certification coverage under this permit at any time if the Department determines thatthe statement(see Part III.A.6.),and all documentation necessary to demonstrate SWPPP does not meetthe permit requirements or consistentwith Part VII.K.. eligibility with this permit at the cons[ruc[ion site until all disturbed areas have achieved final s[abiliza[ion and the NOT has been submitted to the Department. 5. Upon a finding of significant non-compliance with the practices described in the The documents must be maintained in a secure location,such as a job trailer, SWPPP or violation of this permit,the Department may order an immediate on-site construction office,or mailbox with lock.The secure location must be stop to all activity at the site until the non-compliance is remedied.The stop accessible during normal business hours to an individual performing a work order shall be in writing,describe the non-compliance in detail,and be compliance inspection. sent to the owner or opera[or. 3. The owneror opera[or of a construction activity shall not disturb greater than 6. For construc[ion ac[ivi[ies that are subject to the requirements of a regulated, five(5)acres of soil at any one time without prior written authorization from the [radi[ional land use con[rol MS4,the owneroropera[or shall notify the Departmentor,in areas underthejurisdiction of a regulated,[radi[ionalland 15 16 (Part I I.D.6) (Part II F 3) regula[ed,tradi[ional land use control MS4 in writing of any planned opera[orwas not subject to a sixty(60)business day authorization period that amendments or modifications to the post-construction stormwater management has not expired as of the date the Department receives the NOI from the new practice component of the SWPPP required by Part III.A.4.and 5.of this owner or opera[or. permit.Unless otherwise notified by the regulated,[raditional land use con[rol MS4,the owneroroperatorshall have the SWPPP amendments or modifications reviewed and accepted by the regula[ed,[radi[ional land use Part III.STORMWATER POLLUTION PREVENTION PLAN(SWPPP) con[rol MS4 prior to commencing construction of the post-construction stormwater management practice. A. General SWPPP Requirements E. Permit Coverage for Discharges Authorized Under GP-0-15-002 1. A SWPPP shall be prepared and implemented by the owneroroperatorof each cons[ruc[ion ac[ivity covered by this permit.The SWPPP must document 1. Upon renewal of SPDES General Permitfor Stormwater Discharges from the selection,design,installation,implementation and maintenance of the Cons[ruc[ion Ac[ivity(Permit No.GP-0-15-002),an owneroroperatorof a control measures and practices that will be used to meet the effluent limitations construction ac[ivitywith coverage under GP-0-15-002,as of the effective date in Part I.B.of this permit and where applicable,the post-construction of GP-0-20-001,shall be authorized to discharge in accordance with GP-0-20- stormwater management practice requirements in Part I.C.of this permit.The 001,unless otherwise notified by the Department. SWPPP shall be prepared priorto the submittal of the NOI.The NOI shall be submitted to the Department prior to the commencemen[of cons[ruc[ion An owneroropera[or may continue to implement the technical/design activity.A copy of the completed,final NOI shall be included in the SWPPP. components of the post-construction stormwater management controls provided that such design was done in conformance with the technical 2. The SWPPP shall describe the erosion and sediment control practices and standards in place atthe time of initial project authorization.However,they where required,post-construction stormwater management practices thatwill must comply with the other,non-design provisions of GP-0-20-001. be used and/or constructed to reduce the pollutants in stormwater discharges F. Change of Owner or Operator and to assure compliance with the terms and conditions of this permit.In addition,the SWPPP shall identify potential sources of pollution which may 1. When property ownership changes or when there is a change in operational reasonably be expected to affect the quality of stormwater discharges. control overthe construction plans and specifications,the original owneror operator must notify the new owneror opera[or,in writinq,of the requirement to 3. All SWPPPs that require the post-construction stormwater management obtain permit coverage by submitting a NOI with the Department.For practice component shall be prepared by a qualified professional that is cons[ruc[ion ac[ivities subject to the requirements of a regulated,tradi[ional knowledgeable in the principles and practices of stormwater management and land use con[rol MS4,the original owneror operator must also notify the MS4, treatment. in writing,of the change in ownership at least 30 calendar days prior to the change in ownership. 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 2. Once the new owneroropera[orobtains permit coverage,the original owneror being used orwill be used during construction,and all post-construction operator shall then submit a completed NOT with the name and permit stormwater management practices that will be constructed on the site. At a identification number of the new owneroropera[orto the Department atthe minimum,the owneroropera[orshall amend the SWPPP,including address in Part II.B.1.of this permit.If the original owneroropera[or maintains construction drawings: ownership of a portion of the cons[ruc[ion ac[ivity and will disturb soil,they must maintain their coverage under the permit. a. whenever the current provisions prove to be ineffective in minimizing pollu[an[s in stormwater discharges from the site; 3. Permit coverage for the new owneror operatorwill be effective as of the date the Department receives a complete NOI,provided the original owneror 17 18 (Parc m.n a.e) (Parc u i.n.$) b. whenever there is a change in design,construction,or operation at the the terms and conditions of the most current version of the New York State cons[ruc[ion site that has or could have an effect on the discharge of Pollutant Discharge Elimination System("SPDES")general permit for pollu[an[s; stormwater discharges from cons[ruction activities and that it is unlawful for any person to cause or contribute to a violation of wa[erqualitystandards. c. to address issues or deficiencies identified during an inspection by the Furthermore,I am aware thatthere are significant penalties for submitting qualified inspec[or,the Department or other regulatory authority;and false information,that I do not believe to be true,including the possibility of fine and imprisonment for knowing violations" d. to documentthe final construction conditions. In addition to providing the certification statement above,the certification page 5. The Department may notify the owneror operator at any time that the SWPPP must also identify the specific elements of the SWPPP that each contractor and does not meet one or more of the minimum requirements of this permit.The subcontractor will be responsible for and include the name and title of the notification shall be in writing and identify the provisions of the SWPPP that person providing the signature;the name and title of the[rained contrac[or require modification.Within fourteen(14)calendar days of such notification,or responsible for SWPPP implementation;the name,address and telephone as otherwise indicated by the Department,the owner or operator shall make number of the contracting firm;the address(or other identifying description)of the required changes to the SWPPP and submitwritten notification to the the site;and the date the certification statement is signed.The owneror Department that the changes have been made.If the owneror operator does opera[or shall attach the certification statement(s)to the copy of the SWPPP not respond to the DepartmenYs comments in the specified time frame,the that is maintained at the construction si[e.If new or additional contractors are Department may suspend the owner's or opera[or's coverage under this permit hired to implement measures identified in the SWPPP after construction has or require the owneroroperatorto obtain coverage under an individual SPDES commenced,they must also sign the certification statement and provide the permit in accordance with Part II.D.4.of this permit. information listed above. 6. Prior to the commencemen[of cons[ruc[ion ac[ivity,the owneror operator must 7. For projects where the Department requests a copy of the SWPPP or identify the contractor(s)and subcontractor(s)that will be responsible for inspection reports,the owner or opera[orshall submit the documents in both installing,constructing,repairing,replacing,inspecting and maintaining the electronic(PDF only)and paper formatwithin five(5)business days,unless erosion and sediment control practices included in the SWPPP;and the otherwise notified by the Department. contractor(s)and subcontractor(s)that will be responsible for constructing the post-construction stormwater management practices included in the SWPPP. The owneroropera[orshall have each of the contractors and subcontractors B. Required SWPPP Contents identify at least one person from their company that will be responsible for 1. Erosion and sediment control component-All SWPPPs prepared pursuantto implementation of the SWPPP.This person shall be known as the[rained this permit shall include erosion and sediment control practices designed in contractor.The owneror opera[orshall ensure that at least one trained conformance with the technical standard,New York State Standards and contractor is on site on a daily basis when soil disturbance activities are being Specifications for Erosion and Sediment Control,dated November 2016.Where pertormed. erosion and sediment control practices are not designed in conformance with The owneroropera[orshall have each of the contractors and subcontractors the design criteria included in the technical standard,the owneroropera[or must demonstrate equivalence to the technical standard.At a minimum,the identified above sign a copy of the following certification statement below erosion and sediment control component of the SWPPP shall include the before they commence any cons[ruc[ion activity: following: "I hereby certify under penalty of law that I understand and agree to comply a. Background information aboutthe scope of the project,including the with the terms and conditions of the SWPPP and agree to implement any location,type and size of project corrective actions identified by the qualified inspector during a site inspection. I also understand that the owneroroperator must comply with 19 20 (Parc w e�.e) (Parc w e.tp b. A site map/construction drawing(s)for the project,including a general schedule shall be in accordance with the requirements in the technical location map.At a minimum,the site map shall show the total site area;all standard,New York State Standards and Specifications for Erosion and improvements;areas of disturbance;areas that will not be disturbed; Sediment Control,dated November 2016; existing vegetation;on-site and adjacent off-site surtace water(s); floodplain/floodway boundaries;wetlands and drainage patterns that could j. A description of the pollution prevention measures thatwill be used to be affected by the construction ac[ivity;existing and final contours; control litter,construction chemicals and construction debris from becoming locations of different soil types with boundaries;material,waste,borrow or a pollutant source in the stormwater discharges; equipment storage areas located on adjacent properties;and location(s)of the stormwater discharge(s); k. A description and location of any stormwater discharges associated with industrial activity other than construction at the site,including,but not limited c. A description of the soil(s)present at the site,including an identification of to,stormwater discharges from asphalt plants and concrete plants located the Hydrologic Soil Group(HSG); on the cons[ruc[ion si[e;and d. A construction phasing plan and sequence of operations describing the I. Identification of any elements of the design that are not in conformance with intended order of conshuc[ion ac[ivi[ies,including clearing and grubbing, the design criteria in the technical standard,New York State Standards and excavation and grading,utility and infrastructure installation and any other Specifications for Erosion and Sediment Control,dated November 2016. activity at the site that results in soil disturbance; Include the reason for the deviation or alternative design and provide information which demonstrates thatthe deviation or alternative design is e. A description of the minimum erosion and sediment control practices to be equivalen[to the technical standard. installed or implemented for each cons[ruc[ion ac[ivity that will result in soil disturbance.Include a schedule that identifies the timing of initial placement 2. Post-construction stormwater management practice component—The owneror or implementation of each erosion and sediment control practice and the opera[or of any construction project identified in Table 2 of Appendix B as minimum time frames that each practice should remain in place or be needing post-construction stormwater management practices shall prepare a implemented; 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 cri[eria f. A temporary and permanent soil stabilization plan that meets the in the technical standard,New York State Stormwater Management Design requirements of this general permit and the technical standard,New York Manual dated January 2015 State Standards and Specifications for Erosion and Sediment Control,dated November 2016,for each stage of the project,including initial land clearing Where post-construction stormwater management practices are not designed and grubbing to project completion and achievement of final s[abiliza[ion; in conformance with the performance cri[eria in the technical standard,the owner or opera[or must include in the SWPPP the reason(s)for the deviation or g. A site map/construction drawing(s)showing the specific location(s),size(s), alternative design and provide information which demonstrates that the and length(s)of each erosion and sediment control practice; deviation or alternative design is equivalen[to the technical standard. h. The dimensions,material specifications,installation details,and operation The post-construction stormwater management practice component of the and maintenance requirements for all erosion and sediment control SWPPP shall include the following: practices.Include the location and sizing of any temporary sediment basins and structural practices that will be used to divert flows from exposed soils; a. Identification of all post-construction stormwater management practices to be constructed as part of the project.Include the dimensions,material i. A maintenance inspection schedule forthe contractor(s)identified in Part specifications and installation details for each post-construction stormwater III.A.6.of this permit,to ensure continuous and effective operation of the management practice; erosion and sediment control practices.The maintenance inspection 21 22 (Part I II B 2.b) (Part II I.B 3) b. A site map/construction drawing(s)showing the specific location and size of 3. Enhanced Phosphorus Removal Standards-All construction projects identified each post-construction stormwater management practice; 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 c. A Stormwater Modeling and Analysis Report that includes: management practices designed in conformance with the applicable sizing (i) Map(s)showing pre-development conditions,including cri[eria in Part I.C.2.b.,c.or d.of this permit and the performance criteria, watershed/subcatchments boundaries,flow paths/routing,and design Enhanced Phosphorus Removal Standards included in the Design Manual.At a points; minimum,the post-construction stormwater management practice component of the SWPPP shall include items 2.a-2.f.above. (ii) Map(s)showing post-development conditions,including C. Required SWPPP Components by Project Type watershed/subcatchments boundaries,flow paths/routing,design points and post-construction stormwater management practices; Unless otherwise notified by the Department, owners or opera[ors of cons[ruc[ion ui Results of stormwater modelin i e.h drolo and h draulic anal sis ac[ivities identified in Table 1 of Appendix B are required to prepare a SWPPP that only � � g�� Y gY Y Y � includes erosion and sediment control practices designed in conformance with Part for the required storm events.I nclude supporting calculations(model I II.B.1 of this perm it.Owners oropera[ors of the cons[ruc[ion activities identified in Table runs),methodology,and a summary table that compares pre and post- 2 of Appendix B shall prepare a SWPPP thatalso includes post-construction stormwater development runoff rates and volumes for the different storm events; management practices designed in conformance with Part III.B2 or 3 of this permit. (iv) Summary table,with supporting calculations,which demonstrates that each post-construction stormwater management practice has been Part IV.INSPECTION AND MAINTENANCE REQUIREMENTS designed in conformance with the sizing cri[eria included in the Design Manual; A. General Construction Site Inspection and Maintenance Requirements (v) Identification of any sizing criteria that is not required based on the 1. The owneror opera[or must ensure that all erosion and sediment control requirements included in Part I.C.of this permit;and practices(including pollution prevention measures)and all post-construction (vi) Identification of any elements of the design that are not in conformance stormwater management practices identified in the SWPPP are inspected and with the performance cri[eria in the Design Manual. Include the maintained in accordance with Part IV.B.and C.of this permit. reason(s)for the deviation or alternative design and provide 2. The terms of this permit shall not be construed to prohibit the State of New information which demonstrates that the deviation or alternative design York from exercising any authority pursuant to the ECL,common law or federal is equivalen[to the Design Manual; law,or prohibit New York State from taking any measures,whether civil or d. Soil testing results and locations(test pits,borings); criminal,to prevent violations of the laws of the State of New York or protect the public health and safety and/or the environment. e. Infiltration test results,when required;and B. Contractor Maintenance Inspection Requirements f. An operations and maintenance plan that includes inspection and maintenance schedules and actions to ensure continuous and effective 1. The owneroroperatorof each construction ac[ivity identified in Tables 1 and 2 operation of each post-construction stormwater management practice.The of Appendix B shall have a[rained contracfor inspect the erosion and sediment plan shall identify the entity thatwill be responsible for the long term control practices and pollution prevention measures being implemented within operation and maintenance of each practice. 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 24 (Parc iv e.�) (Parc iv c�a) begin implementing corrective actions within one business day and shall in one of the watersheds listed in Appendix C and not directly discharging to complete the corrective actions in a reasonable time frame. one of the 303(d)segments listed in Appendix E; 2. For construction sites where soil disturbance activities have been temporarily b. the construction of a single family home that involves a soil disturbance of suspended(e.g.winter shutdown)and[emporary s[abiliza[ion measures have one(1)or more acres of land but less than five(5)acres and is not located been applied to all disturbed areas,the[rained contrac[orcan stop conducting in one of the watersheds listed in Appendix C and not directly discharging to the maintenance inspections.The hained con[ractorshall begin conducting the one of the 303(d)segments listed in Appendix E; maintenance inspections in accordance with Part IV.B.1.of this permit as soon as soil disturbance activities resume. 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 3. For construction sites where soil disturbance activities have been shut down with partial project completion,the[rained contrac[orcan stop conducting the d. cons[ruction activities located in the watersheds identified in Appendix D maintenance inspections if all areas disturbed as of the project shutdown date that involve soil disturbances between five thousand(5,000)square feet have achieved final stabilization and all post-construction stormwater and one(1)acre of land. management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational. 2. Unless otherwise notified by the Department,the qualified inspectorshall C. Qualified Inspector Inspection Requirements conduct site inspections in accordance with the following timetable: The owner or opera[or shall have a qualified inspec[or conduct site inspections in a. For construction sites where soil disturbance activities are on-going,the conformance with the following requirements: qualified inspec[orshall conduct a site inspection at least once every seven (7)calendar days. [Note:The[rained contrac[or identified in Part III.A.6.and IV.B.of this permit cannot conduct the qualified inspec[orsite inspections unless they meet the qualified inspector b. For construction sites where soil disturbance activities are on-going and the qualifications included in Appendix A.In orderto perform these inspections,the[rained owneroroperatorhas received authorization in accordance with Part II.D.3 con[ractorwould have to be a: to disturb greater than five(5)acres of soil at any one time,the qualifed inspec[orshall conduct at leasttwo(2)site inspections every seven(7) • licensed Professional Engineer, calendar days.The two(2)inspections shall be separated by a minimum of • Certified Professional in Erosion and Sediment Control(CPESC), two(2)full calendar days. • New York State Erosion and Sediment Control Certificate Program holder • Registered Landscape Architect,or c. For construction sites where soil disturbance activities have been • someone working under the direct supervision of,and atthe same company as, temporarily suspended(e.g.winter shutdown)and[emporary stabiliza[ion the licensed Professional Engineer or Registered Landscape Architect,provided measures have been applied to all disturbed areas,the qualified inspec[or they have received four(4)hours of Department endorsed training in proper shall conduct a site inspection at least once every thirty(30)calendar days. erosion and sediment control principles from a Soil and Water Conservation The owneroropera[orshall notify the DOW Water(SPDES)Program District,or other Department endorsed entity]. contact at the Regional Office(see contact information in Appendix F)or,in areas under the jurisdiction of a regula[ed,[radi[ional land use con[rol MS4, 1. A qualified inspec[or shall conduct site inspections for all cons[ruc[ion ac[ivi[ies the regulated,haditional land use conhol MS4(provided the regulated, identified in Tables 1 and 2 of Appendix B,with the exception of: tradi[ional land use control MS4 is not the owneror operator of the construction activity)in writing prior to reducing the frequency of a. the construction of a single family residential subdivision with 25%or less inspections. 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 25 26 (Parc iv cz.d) (Parc iv ca a) d. For construction sites where soil disturbance activities have been shut down a. Date and time of inspection; with partial project completion,the qualified inspectorcan stop conducting inspections if all areas disturbed as of the project shutdown date have b. Name and title of person(s)pertorming inspection; achieved final s[abiliza[ion and all post-construction stormwater management practices required for the completed portion of the project c. A description of the weather and soil conditions(e.g.dry,wet,saturated)at have been constructed in conformance with the SWPPP and are the time of the inspection; operational.The owneroroperatorshall notify the DOW Water(SPDES) Program contact at the Regional Office(see contact information in Appendix d. A description of the condition of the runoff at all points of discharge from the F)or,in areas under the jurisdiction of a regula[ed,[raditional land use construction site.This shall include identification of any discharges of con[rol MS4,the regula[ed,tradi[ionalland use conhol MS4(provided the sedimentfrom the cons[ruc[ion site.Include dischargesfrom conveyance regula[ed,traditionalland use con[rol MS4 is notthe owneroropera[or of systems(i.e.pipes,culverts,ditches,etc.)and overland flow; the cons[ruc[ion ac[ivity)in writing prior to the shutdown.If soil disturbance activities are not resumed within 2 years from the date of shutdown,the e. A description of the condition of all natural surtace waterbodies located owneroroperatorshall have the qualified inspec[orpertorm a final within,or immediately adjacentto,the property boundaries of the inspection and certify that all disturbed areas have achieved final cons[ruc[ion site which receive runoff from disturbed areas.This shall s[abiliza[ion,and all temporary,structural erosion and sediment control include identification of any discharges of sedimentto the surtace measures have been removed;and that all post-construction stormwater waterbody; management practices have been constructed in conformance with the SWPPP by signing the"Final S[abiliza[ion"and"Post-Construction f. Identification of all erosion and sediment control practices and pollution Stormwater Management Practice"certification statements on the NOT.The prevention measures that need repair or maintenance; owneroropera[orshall then submitthe completed NOT form to the address in Part II.B.1 of this permit. g. Identification of all erosion and sediment control practices and pollution prevention measures thatwere not installed properly or are notfunctioning e. For construction sites that directly discharge to one of the 303(d)segments as designed and need to be reinstalled or replaced; listed in Appendix E or is located in one of the watersheds listed in Appendix C,the qualified inspec[or shall conduct at least two(2)site h. Description and sketch of areas with active soil disturbance activity,areas inspections every seven(7)calendar days.The two(2)inspections shall be that have been disturbed but are inactive at the time of the inspection,and separated by a minimum of two(2)full calendar days. areas that have been stabilized(temporary and/or final)since the last inspection; 3. At a minimum,the qualified inspectorshall inspect all erosion and sediment control practices and pollution prevention measures to ensure integrity and i. Current phase of construction of all post-construction stormwater effectiveness,all post-construction stormwater management practices under management practices and identification of all construction that is not in construction to ensure that they are constructed in conformance with the conformance with the SWPPP and technical standards; SWPPP,all areas of disturbance that have not achieved final s[abiliza[ion,all points of discharge to natural surface waterbodies located within,or j. Corrective action(s)that must be taken to install,repair,replace or maintain immediately adjacent to,the property boundaries of the construction si[e,and erosion and sediment control practices and pollution prevention measures; all points of discharge from the cons[ruc[ion si[e. and to correct deficiencies identified with the construction of the post- construction stormwater management practice(s); 4. The qualified inspec[or shall prepare an inspection report subsequent to each and every inspection.At a minimum,the inspection report shall include and/or k. Identification and status of all corrective actions thatwere required by address the following: previous inspection;and 27 28 (Parc iv.ca i) (Parc v.n z.e) I. Digital photographs,with date stamp,that clearly show the condition of all b. Planned shutdown with partial project completion-All soil disturbance practices that have been identified as needing corrective actions.The activities have ceased;and all areas disturbed as of the project shutdown qualified inspec[orshall attach paper color copies of the digital photographs date have achieved final s[abiliza[ion;and all temporary,structural erosion to the inspection report being maintained onsite within seven(7)calendar and sediment control measures have been removed;and all post- days of the date of the inspection.The qualified inspec[or shall also take construction stormwater management practices required for the completed digital photographs,with date stamp,that clearly show the condition of the portion of the project have been constructed in conformance with the practice(s)afterthe corrective action has been completed.The qualified SWPPP and are operational; inspec[orshall attach paper color copies of the digital photographs to the inspection report that documents the completion of the corrective action c. A new owneroropera[or has obtained coverage under this permit in work within seven(7)calendar days of that inspection. accordance with Part II.F.of this permit. 5. Within one business day of the completion of an inspection,the qualified d. The owneror operator obtains coverage under an alternative SPDES inspectorshall notify the owneroroperator and appropriate contractor or general permit or an individual SPDES permit. 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 3. For construction ac[ivi[ies meeting subdivision 2a.or 2b.of this Part,the owner the corrective actions within one business day of this notification and shall or opera[or shall have the qualified inspec[or pertorm a final site inspection complete the corrective actions in a reasonable time frame. priorto submitting the NOT.The qualified inspec[orshall,by signing the"Final Stabiliza[ion"and"Post-Construction Stormwater Management Practice 6. All inspection reports shall be signed by the qualified inspec[or.Pursuantto certification statements on the NOT,certify that all the requirements in Part Part II.D.2.of this permit,the inspection reports shall be maintained on site with V.A.2.a.or b.of this permit have been achieved. the SWPPP. 4. For construc[ion ac[ivi[ies that are subject to the requirements of a regula[ed, traditional land use control MS4 and meet subdivision 2a.or 2b.of this Part,the Part V.TERMINATION OF PERMIT COVERAGE owneroropera[orshall have the regula[ed,tradi[ionalland use control MS4 sign the"MS4 Acceptance"statement on the NOT in accordance with the A. Termination of Permit Coverage requirements in Part VII.H.of this permit.The regulated,[radi[ionalland use control MS4 official,by signing this statement,has determined that it is 1. An owneroroperatorthat is eligible to terminate coverage under this permit acceptable for the owneroropera[orto submitthe NOT in accordance with the must submit a completed NOT form to the address in Part II.B.1 of this permit. requirements of this Part.The regula[ed,[raditional land use con[rol MS4 can The NOT form shall be one which is associated with this permit,signed in make this determination by pertorming a final site inspection themselves or by accordance with Part VII.H of this permit. accepting the qualified inspec[or's final site inspection certification(s)required in Part V.A.3.of this permit. 2. An owneror operator may terminate coverage when one or more the following conditions have been met: 5. For cons[ruc[ion ac[ivi[ies that require post-construction stormwater management practices and meet subdivision 2a.of this Part,the owneror a. Total project completion-All cons[ruc[ion activity identified in the SWPPP opera[or must,prior to submitting the NOT,ensure one of the following: has been completed;and all areas of disturbance have achieved final s[abiliza[ion;and all temporary,structural erosion and sediment control a. the post-construction stormwater management practice(s)and any right-of- measures have been removed;and all post-construction stormwater way(s)needed to maintain such practice(s)have been deeded to the management practices have been constructed in conformance with the municipality in which the practice(s)is located, SWPPP and are operational; 29 30 (Parc v ns.e) (Parc w i.n) b. an executed maintenance agreement is in place with the municipality that Act(CWA)and the ECL and is grounds for an enforcement action against the owneror will maintain the post-construction stormwater management practice(s), opera[or and/or the contractor/subcontractor; permit revocation, suspension or modification;ordenial of a permit renewal application.Upon a finding of significant non- c. for post-construction stormwater management practices that are privately compliance with this permit or the applicable SWPPP,the Department may order an owned,the owneroropera[or has a mechanism in place that requires immediate stop to all cons[ruc[ion activity at the site until the non-compliance is operation and maintenance of the practice(s)in accordance with the remedied.The stop work order shall be in writing,shall describe the non-compliance in operation and maintenance plan,such as a deed covenant in the owneror detail,and shall be sentto the owneroropera[or. opera[or's deed of record, d. for post-construction stormwater management practices that are owned by If any human remains or archaeological remains are encountered during excavation, a public or private institution(e.g.school,university,hospital),government the owner or operator must immediately cease,or cause to cease,all construction agency or authority,or public utility;the owneroropera[or has policy and ac[ivity in the area of the remains and notify the appropriate Regional Water Engineer procedures in place that ensures operation and maintenance of the (RWE). Cons[ruc[ion ac[ivity shall not resume until written permission to do so has been practices in accordance with the operation and maintenance plan. received from the RWE. Part VI.REPORTING AND RETENTION RECORDS B. Continuation of the Expired General Permit A. Record Retention This permit expires five(5)years from the effective date.If a new general permit is not issued priorto the expiration of this general permit,an owneroroperatorwith coverage The owneroropera[orshall retain a copy of the NOI,NOI under this permit may continue to operate and discharge in accordance with the terms Acknowledgment Letter,SWPPP,MS4 SWPPP Acceptance form and any inspection and conditions of this general permit, if it is eutended pursuant to the State reports thatwere prepared in conjunction with this permitfor a period of at leastfive(5) Administrative Procedure Act and 6 NYCRR Part 621,until a new general permit is issued. years from the date that the Department receives a complete NOT submitted in accordance with Part V.of this general permit. C. Enforcement B. Addresses Failure of the owneroropera[or,its contractors,subcontractors,agents and/or assigns to strictly adhere to any of the permit requirements contained herein shall constitute a With the exception of the NOI,NOT,and MS4 SWPPP Acceptance form(which must violation of this permit.There are substantial criminal,civil,and administrative penalties be submitted to the address referenced in Part II.B.1 of this permit), all written associated with violating the provisions of this permit. Fines of up to$37,500 per day correspondence requested by the Department,including individual permit applications, for each violation and imprisonment for up to fifteen(15)years may be assessed shall be sent to the address of the appropriate DOW Water(SPDES)Program contact depending upon the nature and degree of the offense. at the Regional Office listed in Appendix F. D. Need to Halt or Reduce Activity Not a Defense Part VII.STANDARD PERMIT CONDITIONS It shall not be a defense for an owneroropera[or in an enforcement action that it would A. Dutyto Comply have been necessary to halt or reduce the cons[ruc[ion activity in order to maintain compliance with the conditions of this permit. The owner or operator must comply with all conditions of this permit. All contractors and subcontractors associated with the project must comply with the terms of the SWPPP.Any non-compliance with this permit constitutes a violation of the Clean Water 31 32 (Parc vi i.e) (Parc wi H�a) E. Dutyto Mitigate (i) a president,secretary,treasurer,orvice-presidentofthe corporation in charge of a principal business function,or any other person who The owneroropera[orand its contractors and subcontractors shall take all reasonable performs similar policy or decision-making functions for the steps to minimize or prevent any discharge in violation of this permit which has a corporation;or reasonable likelihood of adversely affecting human health orthe environment. (ii) the manager of one or more manufacturing,production or operating F. Dutyto Provide Information facilities,provided the manager is authorized to make management decisions which govern the operation of the regulated facility including The owner or opera[or shall furnish to the Department,within a reasonable specified having the explicit or implicit duty of making major capital investment time period of a written request,all documentation necessary to demonstrate eligibility recommendations,and initiating and directing other comprehensive and any information to determine compliance with this permit or to determine whether measures to assure long term environmental compliance with cause exists for modifying or revoking this permit,or suspending or denying coverage environmental laws and regulations;the manager can ensure that the under this permit,in accordance with the terms and conditions of this permit.The NOI, necessary systems are established or actions taken to gather complete SWPPP and inspection reports required by this permit are public documents that the and accurate information for permit application requirements;and owneroropera[ormust make available for review and copying by any person within five where authority to sign documents has been assigned or delegated to (5)business days of the owner or opera[or receiving a written request by any such the manager in accordance with corporate procedures; person to review these documents. Copying of documents will be done at the requester's expense. b. For a partnership or sole proprietorship these forms shall be signed by a general partner orthe proprietor,respectively;or G.Other Information c. For a municipality,State,Federal,or other public agency these forms shall When the owner or opera[or becomes aware that they failed to submit any relevant be signed by either a principal executive officer or ranking elected official. facts,or submitted incorrect information in the NOI or in any of the documents required For purposes of this section,a principal executive officer of a Federal by this permit,or have made substantive revisions to the SWPPP(e.g.the scope of the agency includes: project changes significantly,the type of post-construction stormwater management practice(s) changes, there is a reduction in the sizing of the post-construction (i) the chief executive officer of the agency,or 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 (ii) a senior executive officer having responsibility for the overall Department,they shall promptly submit such facts or information to the Department operations of a principal geographic unit of the agency(e.g.,Regional using the contact information in Part II.A.of this permit.Failure of the owneroropera[or Administrators of EPA). 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. 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 H. Signatory Requirements authorized representative of that person.A person is a duly authorized representative only if: 1. All NOIs and NOTs shall be signed as follows: a. The authorization is made in writing by a person described in Part VII.H.1. a. For a corporation these forms shall be signed by a responsible corporate of this permit; officer.For the purpose of this section,a responsible corporate officer means: 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, 33 34 (Part VII H 2.b) (Part VII K 1) superintendent,position of equivalen[responsibility,or an individual or include a brief statement of the reasons forthis decision,an application form, position having overall responsibility for environmental matters forthe a statement setting a time frame forthe owner or operator to file the company.(A duly authorized representative may thus be either a named application for an individual SPDES permit,and a deadline,not soonerthan individual or any individual occupying a named position)and, 180 days from owner or operator receipt of the notification letter,whereby the authorization to discharge under this general permit shall be terminated. c. The written authorization shall include the name,title and signature of the Applications must be submitted to the appropriate Permit Administrator at the authorized representative and be attached to the SWPPP. Regional Office.The Department may grant additional time upon demonstration,to the satisfaction of the Department,that additional time to 3. All inspection reports shall be signed by the qualified inspectorthat pertorms apply for an alternative authorization is necessary or where the Department the inspection. has not provided a permit determination in accordance with Part 621 of this Title. 4. The MS4 SWPPP Acceptance form shall be signed by the principal executive officer or ranking elected official from the regula[ed,hadi[ional land use con[rol 2.When an individual SPDES permit is issued to a discharger authorized to MS4,or by a duly authorized representative of that person. discharge under a general SPDES permit for the same discharge(s),the general permit authorization for outfalls authorized under the individual It shall constitute a permitviolation if an incorrect and/or improper signatory SPDES permit is automatically terminated on the effective date of the authorizes any required forms,SWPPP and/or inspection reports. individual permit unless termination is earlier in accordance with 6 NYCRR Part 750. I. Property Rights L. Proper Operation and Maintenance 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 The owneroroperatorshall at all times properly operate and maintain all facilities and of personal rights,nor any infringement of Federal,State or local laws or regulations. systems of treatment and control(and related appurtenances)which are installed or Owners or opera[ors must obtain any applicable conveyances,easements, licenses used bythe owneroropera[orto achieve compliance with the conditions of this permit and/or access to real property prior to commencing cons[ruc[ion activity. and with the requirements of the SWPPP. J. Severability M.Inspection and Entry The provisions of this permit are severable,and if any provision of this permit,or the The owner or opera[or shall allow an authorized representative of the Department, application of any provision of this permit to any circumstance, is held invalid,the EPA,applicable county health department,or,in the case of a construction si[e which application of such provision to other circumstances,and the remainder of this permit discharges through an MS4,an authorized representative of the MS4 receiving the shall not be affected thereby. discharge, upon the presentation of credentials and other documents as may be required by law,to: K. Requirement to Obtain Coverage Under an Alternative Permit 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 1. The Department may require any owner or operator authorized by this permitto conditions of this permit; apply for and/or obtain either an individual SPDES permit or another SPDES general permit.When the Department requires any discharger authorized by a 2.Have access to and copy at reasonable times,any records that must be kept general permitto apply for an individual SPDES permit,it shall notify the under the conditions of this permit;and discharger in writing that a permit application is required.This notice shall 35 36 (Part VI I.M 3) (Part VI I.R) 3.Inspect at reasonable times any facilities or equipment(including monitoring R. Other Permits and control equipment),practices or operations regulated or required by this permit. Nothing in this permit relieves the owneroroperatorfrom a requirement to obtain any other permits required by law. 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. PermitActions 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 owneroropera[orfor 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 750-120. 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 PenalLaw. 37 38 nvva�d�;:n APPENDIXA—Acronyms and Definitions Definitions All definitions in this section are solelv for the purposes of this permit. Acronyms Agricultural Building—a structure designed and constructed to house farm APO—Agency Preservation Officer implements,hay,grain,poultry,livestock or other horticultural products;excluding any BMP—Best Management Practice structure designed,constructed or used,in whole or in part,for human habitation,as a CPESC—Certified Professional in Erosion and Sediment Control place of employment where agricultural products are processed,treated or packaged, Cpv—Channel Protection Volume or as a place used by the public. CWA—Clean Water Act(or the Federal Water Pollution Control Act,33 U.S.C.§1251 et Agricultural Property—means the land for construction of a barn,agricul[ural building, seq) silo,stockyard,pen or other structural practices identified in Table II in the"Agricultural DOW—Division of Water Management Practices Catalog for Nonpoint Source Pollution in New York State" EAF—Environmental Assessment Form prepared by the Department in cooperation with agencies of New York Nonpoint Source ECL-Environmental Conservation Law Coordinating Committee(dated June 2007). EPA—U.S.Environmental Protection Agency HSG—Hydrologic Soil Group Alter Hydrology from Pre to Post-Development Conditions-means the post- MS4—Municipal Separate Storm Sewer System development peak flow rate(s)has increased by more than 5%of the pre-developed NOI—Notice of Intent condition for the design storm of interest(e.g.10 yr and 100 yr). NOT—Notice of Termination NPDES—National Pollutant Discharge Elimination System Combined Sewer-means a sewer that is designed to collect and convey both OPRHP—Office of Parks,Recreation and Historic Places "sewage"and"stormwater". Qf—Extreme Flood Qp—Overbank Flood Commence(Commencement of)Construction Activities-means the initial RRv—Runoff Reduction Volume disturbance of soils associated with clearing,grading or excavation activities;or other RWE—Regional Water Engineer construction related activities that disturb or expose soils such as demolition,stockpiling SEQR—State Environmental Quality Review of fill material,and the initial installation of erosion and sediment control practices SEQRA-State Environmental Quality Review Act required in the SWPPP.See definition for"Construction Activity(ies)"also. SHPA—State Historic Preservation Act SPDES—State Pollutant Discharge Elimination System Construction Activit ies means an clearin radin excavation,fillin demolition SWPPP—Stormwater Pollution Prevention Plan Y� � Y g'g g' g' TMDL—Total Maximum Daily Load or stockpiling activities that result in soil disturbance.Clearing activities can include,but UPA—Uniform Procedures Act are not limited to,logging equipment operation,the cutting and skidding of trees,stump USDA—United States Department of Agriculture removal and/or brush root removal.Construction activity does not include routine WQv—Water Quality Volume maintenance that is pertormed to maintain the original line and grade,hydraulic capacity,or original purpose of a facility. Construction Site—means the land area where cons[ruction activity(ies)will occur. See definition for"Commence(Commencemen[of)Construc[ion Ac[ivi[ies"and"Larger Common Plan of Developmen[or Sale"also. Dewatering—means the act of draining rainwater and/or groundwaterfrom building foundations,vaults or excavations/trenches. Direct Discharge(to a specific surtace waterbody)-means that runoff flows from a cons[ruc[ion site by overland flow and the first point of discharge is the specific surtace waterbody,or runoff flows from a cons[ruction site to a separate storm sewer system 39 40 Appendix A Appendix A and the first point of discharge from the separate storm sewer system is the specific Larger Common Plan of Development or Sale-means a contiguous area where surtace waterbody. multiple separate and distinct cons[ruc[ion activi[ies are occurring,or will occur,under one plan.The term"plan"in"larger common plan of development or sale"is broadly Discharge(s)-means any addition of any pollutant to waters of the State through an defined as any announcement or piece of documentation(including a sign,public notice outlet or point source. or hearing,marketing plan,advertisement,drawing,permit application,State Environmental Quality Review Act(SEQRA)environmental assessmentform or other Embankment—means an earthen or rock slope that supports a road/highway. documents,zoning request,computer design,etc.)or physical demarcation(including boundary signs,lot stakes,surveyor markings,etc.)indicating that construction Endangered or Threatened Species—see 6 NYCRR Part 182 of the DepartmenYs ac[ivi[ies may occur on a specific plot. rules and regulations for definition of terms and requirements. For discrete construction projects that are located within a larger common plan of Environmental Conservation Law(ECL)-means chapter 43-B of the Consolidated development or sale that are at least 1/4 mile apart,each project can be treated as a Laws of the State of New York,entitled the Environmental Conservation Law. 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. Equivalent(Equivalence)—means that the practice or measure meets all the performance,longevity,maintenance,and safety objectives of the technical standard Minimize—means reduce and/or eliminate to the extent achievable using control and will provide an equal or greater degree of water quality protection. measures(including best management practices)that are technologically available and economically practicable and achievable in light of best industry practices. 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 Municipal Separate Storm Sewer(MS4)-a conveyance or system of conveyances pervious surtace has been established;or other equivalent stabilization measures,such (including roads with drainage systems,municipal streets,catch basins,curbs,gutters, as permanent landscape mulches,rock rip-rap orwashed/crushed stone have been ditches,man-made channels,or storm drains): applied on all disturbed areas that are not covered by permanent structures,concrete or pavement. (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 General SPDES permit-means a SPDES permit issued pursuant to 6 NYCRR Part jurisdiction over disposal of sewage,industrial wastes,stormwater,or other 750-121 and Section 70-0117 of the ECL authorizing a category of discharges. 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 Groundwater(s)-means waters in the saturated zone.The saturated zone is a an authorized Indian tribal organization,or a designated and approved subsurtace zone in which all the interstices are filled with water under pressure greater management agency under section 208 of the CWA that discharges to than that of the atmosphere.Although the zone may contain gas-filled interstices or surtace waters of the State; interstices filled with fluids other than water,it is still considered saturated. (ii) Designed or used for collecting or conveying stormwater; (iii) Which is not a combined sewer;and Historic Property—means any building,structure,site,object or district that is listed on (iv)Which is not part of a Publicly Owned Treatment Works(POTW)as defined the State or National Registers of Historic Places or is determined to be eligible for at 40 CFR 1222. listing on the State or National Registers of Historic Places. National Pollutant Discharge Elimination System(NPDES)-means the national Impervious Area(Cover)-means all impermeable surtaces that cannot effectively system for the issuance of wastewater and stormwater permits under the Federal Water infiltrate rainfall.This includes paved,concrete and gravel surtaces(i.e.parking lots, Pollution Control Act(Clean Water Act). driveways,roads,runways and sidewalks);building rooftops and miscellaneous impermeable structures such as patios,pools,and sheds. Natural Buffer—means an undisturbed area with natural cover running along a surtace water(e.g.wetland,stream,river,lake,etc.). Infeasible—means nottechnologically possible,or not economically practicable and achievable in light of best industry practices. New Development—means any land disturbance that does not meet the definition of Redevelopment Activity included in this appendix. 41 42 nvva�d�;:n nvva�d�;:n New York State Erosion and Sediment Control Certificate Program—a certificate Qualified Inspector-means a person that is knowledgeable in the principles and program that establishes and maintains a process to identify and recognize individuals practices of erosion and sediment control,such as a licensed Professional Engineer, who are capable of developing,designing,inspecting and maintaining erosion and Certified Professional in Erosion and Sediment Control(CPESC),Registered sediment control plans on projects that disturb soils in New York State.The certificate Landscape Architect,New York State Erosion and Sediment Control Certificate program is administered by the New York State Conservation District Employees Program holder or other Department endorsed individual(s). Association. It can also mean someone working under the direct supervision of,and at the same NOI Acknowledgment Letter-means the letter thatthe Department sends to an company as,the licensed Professional Engineer or Registered Landscape Architect, owner or operator to acknowledge the DepartmenYs receipt and acceptance of a provided that person has training in the principles and practices of erosion and sediment complete Notice of Intent.This letter documents the owner's or operator's authorization control.Training in the principles and practices of erosion and sediment control means to discharge in accordance with the general permit for stormwater discharges from that the individual working under the direct supervision of the licensed Professional cons[ruc[ion activity. 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 Nonpoint Source-means any source of water pollution or pollutants which is not a Water Conservation District,or other Department endorsed entity.After receiving the discrete conveyance or poin[source permitted pursuant to Title 7 or 8 of Article 17 of initial training,the individual working under the direct supervision of the licensed the Environmental Conservation Law(see ECL Section 17-1403). Professional Engineer or Registered Landscape Architect shall receive four(4)hours of training every three(3)years. Overbank—means flow events that exceed the capacity of the stream channel and spill out into the adjacent floodplain. It can also mean a person that meets the Qualified Professional qualifications in addition to the Qualified Inspec[or qualifications. Owner or Operator-means the person,persons or legal entity which owns or leases the property on which the cons[ruc[ion ac[iviry is occurring; an entity that has Note:Inspections of any post-construction stormwater management practices that operational control over the construction plans and specifications,including the ability to include structural components,such as a dam for an impoundment,shall be pertormed make modifications to the plans and specifications;and/or an entity that has day-to-day by a licensed Professional Engineer. operational control of those activities at a project that are necessary to ensure compliance with the permit conditions. Qualified Professional-means a person that is knowledgeable in the principles and practices of stormwater management and treatment,such as a licensed Professional Performance Criteria—means the design criteria listed under the"Required Elements" Engineer,Registered Landscape Architect or other Department endorsed individual(s). sections in Chapters 5,6 and 10 of the technical standard,New York State Stormwater Individuals preparing SWPPPs that require the post-construction stormwater Management Design Manual,dated January 2015.It does not include the Sizing management practice component must have an understanding of the principles of Criteria(i.e.WQv,RRv,Cpv,Qp and Qf)in Part I.C.2.of the permit. hydrology,water quality management practice design,water quantity control design, and,in many cases,the principles of hydraulics.All components of the SWPPP that Point Source-means any discernible,confined and discrete conveyance,including but involve the practice of engineering,as defined by the NYS Education Law(see Article not limited to any pipe,ditch,channel,tunnel,conduit,well,discrete fissure,container, 145),shall be prepared by,or under the direct supervision of,a professional engineer rolling stock,concentrated animal feeding operation,vessel or other floating craft,or licensed to practice in the State of New York. landfill leachate collection system from which pollutants are or may be discharged. Redevelopment Activity(ies)—means the disturbance and reconstruction of existing Pollutant-means dredged spoil,filter backwash,solid waste,incinerator residue, impervious area,including impervious areas thatwere removed from a project site within sewage,garbage,sewage sludge,munitions,chemical wastes,biological materials, five(5)years of preliminary project plan submission tothe local government(i.e.site plan, radioactive materials,heat,wrecked or discarded equipment,rock,sand and industrial, subdivision,etc.). 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 Regulated,Traditional Land Use Control MS4-means a city,town or village with Parts 700 et seq. land use control authority that is authorized to discharge under New York State DEC's 43 44 Appendix A Appendix A SPDES General Permit For Stormwater Discharges from Municipal Separate Stormwater Sewer Systems(MS4s)or the City of New York's Individual SPDES Permit Steep Slope—means land area designated on the current United States Department of for their Municipal Separate Storm Sewer Systems(NY-0287890). 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 Routine Maintenance Activity-means conshuc[ion activity that is pertormed to map unit name),or a combination of the three designations. maintain the original line and grade,hydraulic capacity,or original purpose of a facility, including,but not limited to: Streambank—as used in this permit,means the terrain alongside the bed of a creek or stream.The bank consists of the sides of the channel,between which the flow is confined. • Re-grading of gravel roads or parking lots, • Cleaning and shaping of existing roadside ditches and culverts that maintains Stormwater Pollution Prevention Plan(SWPPP)—means a project specific report, the approximate original line and grade,and hydraulic capacity of the ditch, including construction drawings, that among other things: describes the construction • Cleaning and shaping of existing roadside ditches that does not maintain the activity(ies),identifies the potential sources of pollution at the cons[ruc[ion si[e;describes approximate original grade,hydraulic capacity and purpose of the ditch if the and shows the stormwater controls that will be used to control the pollutants(i.e.erosion changes to the line and grade,hydraulic capacity or purpose of the ditch are and sediment controls; for many projects, includes post-construction stormwater installed to improve water quality and quantity controls(e.g.installing grass management controls);and identifies procedures the owneroropera[orwill implementto lined ditch), comply with the terms and conditions of the permit. See Part III of the permit for a • Placement of aggregate shoulder backing that stabilizes the transition between complete description of the information that must be included in the SWPPP. the road shoulder and the ditch or embankmen[, • Full depth milling and filling of existing asphalt pavements,replacement of Surtace Waters of the State-shall be construed to include lakes,bays,sounds, concrete pavement slabs,and similar work that does not expose soil or disturb ponds,impounding reservoirs,springs,rivers,streams,creeks,estuaries,marshes, the bottom six(6)inches of subbase material, inlets,canals,the Atlantic ocean within the territorial seas of the state of New York and • Long-term use of equipment storage areas at or near highway maintenance all other bodies of surface water,natural or artificial,inland or coastal,fresh or salt, facilities, public or private(except those private waters that do not combine or effect a junction • Removal of sediment from the edge of the highway to restore a previously with natural surtace waters),which are wholly or partially within or bordering the state existing sheet-flow drainage connection from the highway surtace to the or within its jurisdiction.Waters of the state are further defined in 6 NYCRR Parts 800 to highway ditch or embankmen[, 941. • Existing use of Canal Corp owned upland disposal sites for the canal,and • Replacement of curbs,gutters,sidewalks and guide rail posts. Temporarily Ceased—means that an existing disturbed area will not be disturbed again within 14 calendar days of the previous soil disturbance. 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 Temporary Stabilization-means that exposed soil has been covered with material(s) groundwater,shallow depth to bedrock,and soils with an infiltration rate less than 0.5 as set forth in the technical standard,New York Standards and Specifications for inches/hour.The existence of site limitations shall be confirmed and documented using Erosion and Sediment Control,to prevent the exposed soil from eroding.The materials actual field testing(i.e.test pits,soil borings,and infiltration test)or using information can include,but are not limited to,mulch,seed and mulch,and erosion control mats from the most current United States Department of Agriculture(USDA)Soil Survey for (e.g.jute twisted yarn,excelsior wood fiber mats). the County where the project is located. Total Maximum Daily Loads(TMDLs)-A TMDL is the sum of the allowable loads of a Sizing Criteria—means the criteria included in Part I.C2 of the permit that are used to single pollutant from all contributing point and nonpoin[sources.It is a calculation of the size post-construction stormwater management control practices.The criteria include; maximum amount of a pollutant that a waterbody can receive on a daily basis and still Water Quality Volume(WQv),Runoff Reduction Volume(RRv),Channel Protection meet waterquality standards,and an allocation of that amountto the pollutanYs Volume(Cpv),Overbank Flood(Qp),and Extreme Flood(Qf). sources.A TMDL stipulates wasteload allocations(WLAs)for poin[source discharges, load allocations(LAs)for nonpoin[sources,and a margin of safety(MOS). 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 Trained Contractor-means an employee from the contracting(construction)company, permits authorizing discharges to the waters of the state. identified in Part III.A.6.,that has received four(4)hours of Department endorsed 45 46 nvva�d�;:n training in proper erosion and sediment control principles from a Soil and Water AppENDIX B—Required SWPPP Components by Project Type Conservation District,or other Department endorsed entity.After receiving the initial training,the hained con[rac[or shall receive four(4)hours of training every three(3) years. Table 1 Construction Activities that Require the Preparation of a SWPPP That Only It can also mean an employee from the contracting(construction)company,identified in Includes Erosion and Sediment Controls 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 The following construction activities that involve soil disturbances of one(1)or more acres of Landscape Architect,New York State Erosion and Sediment Control Certificate land,but less than five(5)acres: Program holder,or someone working underthe direct supervision of,and at the same COmpany as,the liCensed PfOfessi0nal Engineef Of Registefed LandsCape AfChiteCt, •Single family home not located in one of the watersheds listed in Appendix C or not directly pfOVided they haVe feCeiVed fOUf(4)hOUfs Of DepaRment endOfsed tfaining in pfOpef discharging to one ofthe 303(d)segments listed in Appendix E •Single family residential subdivisions with 25°k or less impervious cover at total site build-out and efOsiOn and Sediment COntf01 pfinCiples ffOm a SOiI and Watef COnsefVatiOn DistfiCt,Of not located in one ofthe watersheds listed in Appendix C and not directly discharging to one of the Othef DepaRment endOfsed entity). 303(d)segments listed in Appendix E •Constmction of a barn or other agricutturel building,silq stock yard or pen. The trained con[rac[or is responsible for the day to day implementation of the SWPPP. The following construction activities that involve soil disturbances between five thousand(5000) Uniform Procedures Act(UPA)Permit-means a permit required under 6 NYCRR square feet and one(1)acre of land: Part 621 of the Environmental Conservation Law(ECL),Article 70. All construction activities located in the watersheds identifed in Appendix D that involve soil Watef QUality Standafd-means SUCh measUfes Of pUfity Of qUality fOf any Watefs in disturbances between fve thousand(5,000)square feet and one(1)acre of land. relation to their reasonable and necessary use as promulgated in 6 NYCRR Part 700 et Seq. 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, fber-optic cable, cable N, elecMc,telephone,sewer mains,antl water mains •Environmental enhancement projects,such as wetland mitigation projects,stormwater retrofts and stream restoration projects • Pond construction •Linear bike paths running through areas with vegetative cover,including bike paths surfaced with an impervious cover •Cross-countryskitrailsandwalking/hikingtrails •Sidewalk,bike path orwalking path projects,surfaced with an impervious cover,that are not part of residential,commercial or institutional development; •Sidewalk,bike path or walking path projects,surfaced with an impervious cover,that include incidental shoulder or wrb work along an existing highway to support constmction 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 47 48 Appendix B Appendix B T2b10 1(COf1tIf1U0dJ CONSTRUCTION ACTIVITIES 7HAT REQUIRE THE PREPARATION OF A T2b10 2 SWPPP CONSTRUCTION ACTNITIES THAT REQUIRE 7HE PREPARATON OF A SWPPP THAT INCLUDES THAT ONLY INCLUDES EROSION AND SEDIMENT CON7F20LS POSTCONSTRUCTON STORNNJAlER MANAGEMENT PRACTICES The following construction activities that involve soil disturbances of one(1)or more acres of lantl: 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,felds,downhill ski trails) • Single family home located in one ofthe watersheds listed in Appendix C or directlydischarging to excluding projects that aRer hydrologyfrompre topost development conditions, one ofthe 303(d)segments listed in Appendix E •Athletic felds(natural grass)that do not include the construction or reconstmction of impervious • Single family home that disturbs fve(5)or more acres of lantl area and do not alter hydrologyfrompre to post development conditions • Single family residential subdivisions located in one ofthe watersheds listed in Appendix C or • Demolition project where vegetation will be established,and no redevelopment is planned directly discharging to one ofthe 303(d)segments listed in Appendix E •Werhead elecMc transmission line project that does not include the constmction of permanent • Single family residential subdivisions that involve soil disNrbances of between one(1)and fve(5) access roads or parking areas surtaced with impervious cover acres of land with greater than 25°k impervious cover at total site build-out •Structural practices as identified in Table II in the"AgnculNral Management Practices Catalog for • Single family residential subdivisions that involve soil disNrbances offve(5)or more acres of land, Nonpoint Source Pollution in NewYork State",excluding projects that involve soil disturbances of and single family residential subdivisions that involve soil disturbances of less than five(5)acres greater than five acres and constmction activities that include the constmction or reconstmction of that are part of a larger common plan of development or sale that will ultimately disturb five or more impervious area acres of land •Temporary access roads,median crossovers,detour roads,lanes,or other temporary impervious • Multi-family residential developments;includes duplexes,townhomes,condominiums,senior areas that will be restored to pre-constmction conditions once the constmction activity is complete housing complexes,apartment complexes,and mobile home parks • Airports • Amusement parks • Breweries,cidenes,and winenes,including establishments constmcted on agncultural land • Campgrounds • Cemeteries that include the constmction or reconstmction of impervious area(>5°k of disturbed area)or alter the hydrology from pre to post development conditions • Commercial developments • Churches and other places of worship • Constmction of a barn or other agricutturel building(e.g.silo)and stmcNral practices as identifed in Table II in the"AgriculNral Management Practices Catalog for Nonpoint Source Pollution in New York State"that include the constmction or reconstruction of impervious area,exclutling projects that involve soil disturbances of less than fve acres. • Golfcourses • Institutional development;includes hospitals,prisons,schools and colleges • Industrial facilities;includes industrial parks • Landflls • Municipal facilities;includes highway garages,transfer stations,offce buildings,PONV's,water treatment plants,antl water storage tanks • Office complexes • Playgrounds that include the construction or reconstruction of impervious area • Sports complexes • Racetracks;includes racetracks with earthen(dirt)surtace • Road constmction or reconstruction,including roads constmcted as part of the constmction activities listed in Table 1 49 50 nvva�d�;:e Table 2(Continued) APPENDIX C—Watersheds Requiring Enhanced Phosphorus Removal CONSTRUCTION ACTNITES THAT REQUIRE THE PREPARATON OF A SWPPP THAT INCLUDES POST-CONS7F2UCTON STORNNJATER MANAGENENT PRACTICES Watersheds where owners or operators of construction activities identified in Table 2 of Appendix B must prepare a SWPPP that includes post-construction The following construction activities that involve soil disturbances of one(1)or more acres of stormwater management practices designed in conformance with the Enhanced lantl: Phosphorus Removal Standards included in the technical standard,New York • Parking lot constmction or reconstmction,including parking lots constructed as part ofthe State StOfmWatef Management Design ManUal(°Design ManUal°). construction activities listed in Table 1 • Athletic felds(natural grass)that include the constmction or reconstruction of impervious area(>5°k of disNrbed area)or alter the hydrology from pre to post development contlitions •Enti�e New Yo�k City Wate�shed located east of the Hudson Rive�-Figu�e 1 • Athletic felds with artificial turt •OnOndaga Lake Watefshed-FigUfe 2 • Permanent access roads,parking areas,substations,compressor stations and well drilling pads, •GfeenWOod Lake Watefshed-FigUfe 3 surfaced with impervious cover,and constmcted as part of an over-head elecMc transmission line •OsCaWana Lake Watefshed—FigUfe 4 project,wind-power project,cell tower project,oil or gas well drilling project,sewer orwater main •Kindefh0ok Lake Watefshed—Fi Ufe 5 project or other linear utility project • Sidewalk,bike path or walking path projects,surfaced with an impervious cover,that are part of a resitlential,commercial or instiNtional tlevelopment • Sidewalk,bike path orwalking path projects,surfaced with an impervious cover,that are part of a highway construction or reconstruction project • All other construction activities that include the constmction or reconstmction of impeivious area or aRer the hydrology from pre to post development conditions,and are not listed in Table 1 51 52 Appendix C Appendix C Fiqure 1-New York Citv Watershed East of the Hudson Fiqure 2-Onondaqa Lake Watershed ���� ;� � - _ EEKMAN � -_ -� � CLAY I4 � I'� Cdi:tRia '.:.,' 1 �� �� ERST F�SNKiLL - . r� �N�li$H�. ��L15F�--' �2,, �n.iN�G' VAAI6LIR�N "�-�F -- � "� - �� LN�Api!}pL � � � "_ _ .`SALINA I NkyUS ATT£RS'!3N i-� � " � '"L�—,� � �. K£.JT f -:�� �..'. � Ensv� Y(i�. SE -� �nn�i�%us � �,:3_l � SGUT+i�AST � � .e SYRRCLI$�Ir � f FL1T lAh9 4'P.'_LE� '� ELFR[DGB �-.:� . � - [�, DEWITT t:ARMEL �f2F�N5TER — — — _ - ' ) �1 +..5, � f41A�I�E6LUS �--,� r'� .. - — � � ��r Pa R7H 511LE41 SRF,:��I�AY�L 5 DN6N�4GA� i 5�3M5.R5 •�— - — I� ��� '�� f L WI56�R' � � ,J 1'•R4iTQVYI• . EdFOR❑ / LAFRYETTE .p�f�+dC•f+.luG } � . lr1'JllY'J "sS [:G - � -�.N CA.$YLE �. ' _ '��,_ �TiSGO — __ _._ _ _ _ I ��SNlcf�3P � 6'�.:RTy CAST .. -- � � � I •- 1 { zut�Y F � H:.i.� i F4Sa.P:1'�� -�..., ..-���-} . _� . . �i.. - - •'ry I L' — — -- - ——�` 1 - --- — -- _ � Ph�sphorus Wale s a ' �,rt�� :sori � �-�RE��� � �i ` EOH Walzrshed � � , 53 54 nvva�d�;:c nvva�d�;:c Fiqure 3-Greenwood Lake Watershed Fiqure 4-Oscawana Lake Watershed PHlLIPSTOV'�N WARWICK� � KEdVT i� _ - � � pUTNAM VALLEY � �, � � '_.._ �REENWQ(7D LAKE {' '-� , —oscnwwunu�x�` Phn::,�hrm,s Wi�,.,,��,4,, �� �� ! � ,r� � - I �I . CARMEL I�Phosphorus Walers#�eu 55 56 Appendix C Fiqure 5-Kinderhook Lake Watershed APPENDIX D—Watersheds with Lower Disturbance Threshold Watersheds where owners or operators of construction activities that involve soil disturbances between five thousand(5000)square feet and one(1)acre of land � must obtain coverage under this permit. S'ANO LAKE EA�1 GIiC�FiHllSFI , r„�'L Entire New York City Watershed that is located east of the Hudson River-See Figure 1 in Appendix C NASSAII 1 SCFI[7UAClC �Lr [ 1 CJEW LEBliN 1CINOERHQOKL � � . �� CH�THRM , � GRNRAN VALATiC , To-wn,VilfeOe,or Crty 6ouiW ary lo�New lbr%SiaM �� �KmtivYnmk La%e Wa[craM1CU � � ~~T~~� 57 58 303(d)Segments Impaired by Construction Related Pollutant(s) APPENDIX E—303(d)Segments Impaired by Construction Related Pollutant(s) �utchess Fall Kill and eri6s Nutrienes Dutchess Hillside Lake Nutrients List of 303(d)segments impaired by pollutants related to construction activiry(e.g.silt,sediment Dutchess Wappingers Lake Nutrients or nutrients).The list was developed using"The Final New York State 2016 Section 303(d)List Dutchess Wa Lake 5ilt/5ediment of Impaired Waters Requiring a TMDL/Other Stretegy'dated November 2016.Owners or ppingers operators of single family home and single family residential subdivisions with 25%or less total Erie Beeman Creek and tri6s Nutrients impervious cover at total site build-out that involve soil disturbances of one or more acres of Erie Blimtt Creek,Lower,and tri6s 5ilt/Sediment land,but less than 5 acres,and directly discharge to one of the listed segments below shall Erie Ellimtt Creek,Lower,and tribs Nutrients prepare a SWPPP that includes post-construction stormwater management prectices designed Erie Green Lake Nutrients in conformance with the New York State Stormwater Management Design Manual('Design Erie Little 5ister Creek,Lower,and tribs Nutrients Manual"),dated January 2015. Erie MurderCreek,Lower,and tribs Nutrients Erie Rush Creek and tri6s Nutrients Erie ScajaquadaCreek,Lower,andtribs Nutrients Erie ScajaquadaCreek,Middle,andtribs Nutrients COUNTY WATERBODY POLLUTANT Erie ScajaquadaCreek,Upper,andtribs Nutrients Al6any Ann Lee(Shakers)Pond,Stump Pond Nutrients Erie South Branch Smoke Cr,Lower,and tri6s Silt/Sediment Al6any BasicCreekReservoir Nutrients Erie SouthBranch5mokeCr,Lower,andtribs Nutrients Allegany Amity Lake,Saunders Pond Nutrients Essex Lake Champlain,Main Lake,South Nutrients Bronx Longlsland5ound,Bronx Nutrients Essex LakeChamplain,5outhLake Nutrients Bronx VanCortlandtLake Nutrients Essex WillsboroBay Nutrients Broome Fly Pond,Deer Lake,Sky Lake Nutrients Genesee Bigelow Creek and tribs Nutrients Broome MinorTri6stoLowerSusquehanna�north) Nutrients Genesee BlackCreek,Middle,andm ortribs Nutrients Broome WhitneyPointLake/Resery Nutrients Cattaraugus AlleghenyRiver/Reservoir Nutrients Genesee BlackCreek,Upper,andm ortribs Nutrients Genesee Bowen Brook and tri6s Nutrients Cattaraugus Beaver�Alma�Lake Nutrients Cattaraugus Case Lake Nutrients Genesee LeRoy Reservoir Nutrients Cattaraugus Linlyco/CIu6 Pond Nutrients Genesee OakOrchard Cr,Upper,andtribs Nutrients Ca Duck Lake Nutrients Genesee Tonawanda Creek,Middle,Main Stem Nutrients yuga Greene Schoharie Reservoir Silt/Sediment Cayuga Little Sodus Bay Nutrients Greene Sleepy Hollow Lake Silt/Sediment Chautauqua BearLake Nutrients Herkimer SteeleCreektribs Silt/Sediment Chautauqua ChadakoinRiverandtribs Nutrients Herkimer SteeleCreektribs Nutrients Chautauqua Chautauqua Lake,North Nutrients Jefferson Moon Lake Nutrients Chautauqua Chautauqua Lake,South Nutrients Chautauqua FindleyLake Nutrients Kings HendrixCreek Nutrients Chautauqua Hul6urt/Clymer Pond Nutrients Kings Prospect Park Lake Nutrients Clinton Great Chazy River,Lower,Main Stem Silt/Sediment Lewis Mill Creek/South Branch,and tribs Nutrients Clinton LakeChamplain,MainLake,Middle Nutrients ���ingston ChristieCreekandtri6s Nutrients Clinton Lake Champlain,Main Lake,North Nutrients Livingston Conesus Lake Nutrients Columbia KinderhookLake Nutrients Livingston MiIlCreekandminortribs Silt/Sediment Colum6ia Ro6imm�Pond Nutrients Monroe BlackCreek,Lower,andm ortri6s Nutrients Monroe BuckPond Nutrients Cortland DeanPond Nutrients Monroe CranberryPond Nutrients 59 60 303(d)Segments Impaired by Construction Related Pollutant(s) 303(d)Segments Impaired by Construction Related Pollutant(s) Monroe Lake Ontario 5horeline,Western Nutrients Onondaga Onondaga Lake,northern end Nutrients Monroe Long Pond Nutrients Onondaga Onondaga Lake,southern end Nutrients Monroe MiIlCreekandtribs Nutrients Ontario GreatBrookandminortri6s Silt/Sediment Monroe MiIlCreek/BluePondOutletandtribs Nutrients Ontario GreatBrookandminortri6s Nutrients Monroe MinorTri6stolrondequoitBay Nutrients Ontario HemlockLakeOutletandminortri6s Nutrients Monroe RochesterEmbayment-East Nutrients Ontario HoneoyeLake Nutrients Monroe RochesterEm6ayment-West Nutrients Orange GreenwoodLake Nutrients Monroe ShipbuildersCreekandtribs Nutrients Orange MonhagenBmokandtribs Nutrients Monroe ThomasCreek/WhiteBrookandtribs Nutrients Orange OrangeLake Nutrients Nassau BeaverLake Nutrients Orleans LakeOntario5horeline,Western Nutrients Nassau CamaansPond Nutrients Orleans LakeOntario5horeline,Western Nutrients Nassau East Meadow Brook,Upper,andtri6s Silt/Sediment Oswego Lake Neatahwanta Nutrients Nassau East Rockaway Channel Nutrients Oswego Pleasant Lake Nutrients Nassau Grant Park Pond Nutrients Putnam Bog Brook Reservoir Nutrients Nassau Hempstead Bay Nutrients Putnam Boyd Corners Reservoir Nutrients Nassau Hempstead Lake Nutrients Putnam Croton Falis Reservoir Nutrients Nassau HewlettBay Nutrients Putnam DivertingReservoir Nutrients Nassau Hog Island Channel Nutrients Putnam East Branch Reservoir Nutrients Nassau Longlsland5ound,NassauCountyWaters Nutrients Putnam LakeCarmel Nutrients Nassau Massapequa Creek and tribs Nutrients Putnam Middle Branch Reservoir Nutrients Nassau Mil6urn/Parsonage Creeks,Upp,and tri6s Nutrients Putnam Oscawana Lake Nutrients Nassau Reynolds Channel,west Nutrients Putnam Palmer Lake Nutrients Nassau TidalTri6stoHempsteadBay Nutrients Putnam WestBranchReservoir Nutrients Nassau Tri6s(fresh�to East Bay Nutrients Queens Bergen Basin Nutrients Nassau Tri6s�fresh�toEastBay Silt/Sediment queens FlushingCreek/Bay Nutrients Nassau Tri6sm Smith/Halls Ponds Nutrients queens Jamaica Bay,Eastern,and tribs(queens) Nutrients Nassau WoodmereChannel Nutrients queens KissenaLake Nutrients NewVork Harlem Meer Nutrients queens Meadow Lake Nutrients New Vork The Lake in Central Park Nutrients queens Willow Lake Nutrients Niagara BergholtzCreekandtribs Nutrients Rensselaer NassauLake Nutrients Niagara Hyde Park Lake Nutrients Rensselaer Snyders Lake Nutrients Niagara Lake Ontario 5horeline,Western Nutrients Richmond Grasmere Lake/Bradys Pond Nutrients Niagara LakeOntario5horeline,Western Nutrients Rockland CongersLake,SwartoutLake Nutrients Oneida Ballou,NailCreeksandtri6s Nutrients Rockland RocklandLake Nutrients Onondaga Har6or Brook,Lower,and tribs Nutrients Saratoga Ballston Lake Nutrients Onondaga LeyCreekandtribs Nutrients Saratoga DwaasKillandtribs Silt/Sediment Onondaga MinorTri6stoOnondagaLake Nutrients Saratoga DwaasKillandtribs Nutrients Onondaga Ninemile Creek,Lower,and tribs Nutrients Saratoga Lake Lonely Nutrients Onondaga Onondaga Creek,Lower,and tribs Nutrients Saratoga Round Lake Nutrients Onondaga Onondaga Creek,Middle,andtri6s Nutrients Saratoga Tribsm Lake Lonely Nutrients 61 62 303(d)Segments Impaired by Construction Related Pollutant(s) 303(d)Segments Impaired by Construction Related Pollutant(s) Schenectady CollinsLake Nutrients Warren Huddle/FinkleBrooksandtri6s Silt/Sediment Schenectady DuaneLake Nutrients Warren IndianBrookandtribs Silt/Sediment Schenectady MariavilleLake Nutrients Warren LakeGeorge Silt/Sediment Schoharie Engleville Pond Nutrients Warren Tribs to L.George,Village of L George Silt/Sediment Schoharie Summit Lake Nutrients Washington Cossayuna Lake Nutrients Seneca ReederCreekandtri6s Nutrients Washington LakeChamplain,5outhBay Nutrients St.Lawrence Black Lake 0utlet/Black Lake Nutrients Washington Tri6s to L.George,East 5hore Silt/Sediment St.Lawrence FishCreekandminortri6s Nutrients Washington WoodCr/ChamplainCanalandminortribs Nutrients Steu6en SmithPond Nutrients Wayne PortBay Nutrients Suffolk AgawamLake Nutrients Westchester AmawalkReservoir Nutrients Suffolk Big/Little Fresh Ponds Nutrients Westchester Blind Brook,Upper,and tribs Silt/Sediment Suffolk Canaan Lake Silt/Sediment Westchester Cross River Reservoir Nutrients Suffolk Canaan Lake Nutrients Westchester Lake Kamnah Nutrients Suffolk Flanders Bay,West/LowerSawmill Creek Nutrients Westchester Lake Lincolndale Nutrients Suffolk Fresh Pond Nutrients Westchester Lake Meahagh Nutrients Suffolk Great South Bay,East Nutrients Westrhester Lake Mohegan Nutrients Suffolk GreatSouthBay,Middle Nutrients Westchester LakeShenorock Nutrients Suffolk Great 5outh Bay,West Nutrients Westchester Long Island 5ound,Westchester(East) Nutrients Suffolk Lake Ronkonkoma Nutrients Westchester Mamaroneck River,Lower Silt/Sediment Suffolk Longlsland5ound,5uffolkCounty,West Nutrients Westchester MamaroneckRiver,Upper,andminortribs Silt/Sediment Suffolk Mattituck(Marratooka)Pond Nutrients Westchester Muscoot/Upper New Croton Reservoir Nutrients Suffolk Meetinghouse/Terrys Creeks and tribs Nutrients Westchester New Croton Reservoir Nutrients Suffolk Mill and Seven Ponds Nutrients Westchester Peach Lake Nutrients Suffolk Millers Pond Nutrients Westchester Reservoir No.l(Lake Isle) Nutrients Suffolk Moriches Bay,East Nutrients Westchester Saw Mill River,Lower,and tri6s Nutrients Suffolk Moriches Bay,West Nutrients Westchester Saw Mill River,Middle,and tri6s Nutrients Suffolk Pemnic River,Lower,and tidal tribs Nutrients Westchester Sheldrake River and tribs Silt/Sediment Suffolk quanwckBay Nutrients Westchester SheldrakeRiverandtri6s Nutrients Suffolk ShinnecockBayandlnlet Nutrients Westchester SilverLake Nutrients Suffolk Tidaltri6smWestMorichesBay Nutrients Westchester TeatownLake Nutrients Sullivan Bodine,MontgomeryLakes Nutrients Westchester TiticusReservoir Nutrients Sullivan Davies Lake Nutrients Westchester Truesdale Lake Nutrients Sullivan EvensLake Nutrients Westchester WallacePond Nutrients Sullivan Pleasure Lake Nutrients Wyoming Java Lake Nutrients Tompkins Cayuga Lake,Southern End Nutrients Wyoming Silver Lake Nutrients Tompkins Cayuga Lake,Southern End Silt/Sediment Tompkins Owasm Inlet,Upper,and tribs Nutrients Ulster Ashokan Reservoir Silt/Sediment Ulster EsopusCreek,Upper,andminortribs Silt/Sediment Warren Hague Brook and tri6s Silt/Sediment 63 64 APPENDIX F—List of NYS DEC Regional Offices fi 50 CiaaE Rono 50 CiaaE Rono � Nnssnu nrvo SUFFo�x Siorvv Baoox,Nr 11]90 Siorvv Baoox,Nr 11]903409 TE�.(631)444-0%5 TE�.(631)444d405 1HurviEaSPoirviP�azn, 1HurvhaSPoirviP�azn, 2 Baorvx,Kirv�S,NEwVoax, 4]-00215iSi. 4]-40215iSi. QUEErvSnrvoRicxmorvo Lorv�IS�nrvoCiir,Nr11101-540] Lorv�IS�nrvoQir,Nr11101b40] TE�.(]18)482-499] TE�.(/18)482-0933 DuicxE55,0anrv�E,Puirvnm, 21SouixPuiiCoarvEaSRono 100W��5mEAVErvuE,SuiiE1w 3 Rocx�nrvo,Su��rvnrv,U�siEa NEwPn�rz,Nv12561-1696 WxiiEP�nirv5,Nv10603 nnuWEsicxEsiEa Te�.(845)2563059 Te�.(914)428-2505 A�anrvv,Co�umain, DE�nwnaE,GaEErvE, 1150NoaixWESrcoiiRono 1130NoaixWESicoiiRono Q Morvi�omEav,OisE�o, ScxErvEcinov,Nv 12306-2014 ScxErvEcrnov,Nv 12306-2014 RErv55E�nEa,ScxErvEcinov Te�.(518)35]-20G9 Te�.(518)35]-2045 nrvo ScxoxnaiE C�irviorv,E55Ex,Fxnnn�in, ���SSiniERouiE86,POBox296 232Go�FCouaSERono 5 Fu�iorv,Hnmi�iorv, qpygaoox,Nv129]]-029G WnaaErvSaua�,Nv12885-11]2 TE�. Snanio�n,Wnxxennnu ���518)89]-1234 (518)623-12(10 Wnsxirv�iory HERKIMER�EFFERSON, STATEOFFICEBUILDING STATEOFFICEBUILDING 6 LEWIS,ONEIDAAND 31]WASHINGTONSTREET 20]GENESEESTREET ST.LAWRENCE WATERTOWN,NV 136013]8] UTICA,NV 13501-2885 TEL.(315) TEL.(315)]85-2245 ]93-2554 BROOME,CAVUGA, CHENANGO,CORTLAND, 615 ERIE BLVD.WEST 615 ERIE BLVD.WEST ] MADISON,ONONDAGA, SVRACUSE,NV 13204-2400 SVRACUSE,NV 13204-2400 OSWEGO,TIOGA AND TEL.(315)426-]438 TEL.(315)426-]500 TOMPKINS CHEMUNG,GENESEE, LIVINGSTON,MONROE, 62]4EASTAVON-LIMA 62]4EASTAVON-LIMARD. $ OMARIO,ORLEANS, ROADAVON,NY 144149519 AVON,NY 14414-9519 SCHUVLER,SENEClS �L.(585)226-2466 TEL.(585)226-2466 STEUBEN,WAVNE AND VATES ALLEGANV, Z�pMICHIGANAVENUE 2]OMICHIGANAVENUE 9 CATTARAUGUS, gUFFALO,NY 14203-2999 BUFFALO,NV14203-2999 CHAUTAUQUA,ERIE, �L.(/16)851-]165 TEL.(/16)851-]0]0 NIAGARAAND WVOMING 65 Appendix G Historic Preservation/Endangered Species Documentation ��w�o�� P�rl�� ���cre�a�i�r� STATE C�F � � �PP�RTUNIT� ��� �{�IS���'IC �I����I'�"��I��1 ANDREW M. CUOMO ROSE HARVEY Governor Commissioner August 28, 2015 Ms. Shannon Wright Hartgen Archeological Associates, Inc. 1744 Washington Ave, Ext. Rensselaer, NY 12144 Re: DEC Saratoga Hospital Collins Property Between Saratoga golf course, South Collins terrace, Morgan Street , NY 15PR04515 Dear Ms. Wright: Thank you for requesting the comments of the Office of Parks, Recreation and Historic Preservation (OPRHP). We have reviewed the project in accordance with the New York State Historic Preservation Act of 1980 (Section 14.09 of the New York Parks, Recreation and Historic Preservation Law). These comments are those of the OPRHP 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 State Environmental Quality Review Act (New York Environmental Conservation Law Article 8) and its implementing regulations (6 NYCRR Part 617). Based upon this review, it is the New York State Office of Parks, Recreation and Historic Preservation's opinion that your project will have no impact on archaeological and/or historic resources listed in or eligible for the New York State and National Registers of Historic Places. If further correspondence is required regarding this project, please be sure to refer to the OPRHP Project Review (PR) number noted above. Sincerely, ���' � Ruth L. Pierpont Deputy Commissioner for Historic Preservation Division for Historic Preservation P.O. Box 189,Waterford, New York 12188-0189•(518)237-8643•www.nysparks.com Myrtle Street Saratoga Hospital ,ti�r5 c�i C�rc;c:si+�= � 1��,q��.O�ii �iS�Si.. . - .,i . . �,�i �� }��� 4� ar ����,�y RUn�^fi � ����, �,�� . �� :� L�T ��i �I` ^ ,��. �i`.�'M1�1h5N"! �r � ���y {�,,. , . . ' �� ��, � I�'a � U� � ��, � f .. � � � � = �� � r � � . 4 � y`' :� � � � - •5i �; ��1r�fQ�n�t �e ��A�7c�,��� �� � �a 53fd'6C�[]a 4s � ��['��.. , S.a41f� '�� � Pc b�.I wb � t Q �i,+ r �ry��C?.i.�'2+Y�+n� T �Y�.�r�� �e � 'f` r� � � ..a�s.�1�� ���'��k `� + 4 � � ��,,• ' :� ,k���,tg�u�y � � � � ��j �ara�+ga '�,�` � j5irr.',. 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O � r'n O ca O �U 4. .^, c�J'�'y M v �'O U�,y �b � � c�C� G '� � � � �c�C a p u o— �o.'�.� � F�-o o N �Y ��� CJ U �cC CJ U �O U �d �O � � U � � � � � y A� U �.�' C�' y.y' U Li � � a 4C O �'d' � U O s U � � -°c-�o.� ° o o �� 3 � �'� ^ .� `� � a, F o °-o -o � � �.ti ' v� en—.d � 3 E �a � � � � � � o 5 � � �"o � � � � �� �y �w.y .� .T .ti � � v'' o .. � � � �, �,� �a �-'� ° �� ° � ° � c� c �,c � � �y ��cn �a � � � � " � �-°o � � �'^ � >� T � 'y� C F .� � o b ,o � �� o tn.� � � � o �� ° � �.�°" c�i '� " C 7 � o �F r�i, c�a � � o p � � �.--'�4; � o Appendix I Stormwater Maintenance Agreement SAMPLE DEED COVENANT DECLARATION OF RESTRICTIVE COVENANT REGARDING STORMWATER MAINTENANCE This Declaration of Restrictive Covenant regarding Stormwater Maintenance is entered into effective the day of , by (the "Owner"), as owner of the real property located at And more particularly described in Exhibit A attached hereto and made a part hereof(the "Pro e "). The Owner hereby acknowledges and agrees that the Property shall be operated and maintained in accordance with the operation and maintenance plan set forth in Schedule A and Schedule B attached hereto and made a part hereof. This restrictive covenant shall run with the land and be binding on the successors and assigns of the owner. DATED EFFECTIVE the day and year written above. Exhibit A LEGAL DESCRII'TION (Insert Legal Description of property (e.g., All that certain plot,piece or parcel of land situate, lying...) Schedule B STORMWATER CONTROL FACILITY MAINTENANCE AGREEMENT The facility owner desires that the stormwater control measures be built in accordance with the approved project plans and thereafter be maintained, cleaned,repaired, and replaced and continued in perpetuity in order to ensure optimum performance of the components. Therefore, facility owner agrees as follows: 1. This document binds the facility owner, its successors and assigns, to the maintenance provisions depicted in the approved projectplan which is 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, infiltrators, drain inlets,pipes, and culverts. 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 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 facility owner 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. 5. 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 agencies having jurisdiction. 6. The facility owner shall undertake necessary repairs and replacement of the stormwater control measures in accordance with the recommendations of the inspecting engineer. 7. This agreement shall be recorded in the Office of the County Clerk, County of , together with the deed for the common property. 8. This agreement is effective