Loading...
SWPPP September 17, 2021 Stormwater Pollution Prevention Plan (SWPPP) for Hoffman Car Wash 919 State Route 9 Town of Queensbury Warren County, New York Prepared for: Hoffman Development Corp. 1757 Central Avenue Albany, NY 12205 Prepared by: C.T. MALE ASSOCIATES 50 Century Hill Drive Latham, New York 12110 (518) 786-7400 FAX (518) 786-7299 C.T. Male Associates Project No: 21.1302 Unauthorized alteration or addition to this © Copyright 2021 Document is a violation of the New C.T. MALE ASSOCIATES York State Education Law. C.T. MALE ASSOCIATES STORMWATER POLLUTION PREVENTION PLAN (SWPPP) Hoffman Car Wash – 919 State Route 9 TABLE OF CONTENTS -i- Page 1.0 CERTIFICATIONS .........................................................................................................1 1.1 Contractor ............................................................................................................1 1.2 Contractor Responsibilities ...............................................................................2 1.3 Certification of SWPPP Preparer .....................................................................4 2.0 PERMIT OVERVIEW .....................................................................................................5 2.1 General .................................................................................................................5 2.2 Execution of the General Permit ......................................................................6 3.0 REQUIREMENTS AND TECHNICAL STANDARDS .............................................6 4.0 PROJECT OVERVIEW...................................................................................................7 4.1 Existing Conditions ............................................................................................7 4.2 General Permit Requirements ..........................................................................8 4.3 Post-Developed Conditions ..............................................................................8 5.0 STORMWATER MANAGEMENT PLANNING .....................................................10 5.1 Step 1: Site Planning ........................................................................................10 5.1.1 Preservation of Natural Features and Conservation ......................10 5.1.2 Reduction of Impervious Cover .........................................................10 5.2 Step 2: Calculation of the Water Quality Volume (WQv) ..........................11 5.3 Step 3: Runoff Reduction ................................................................................11 5.3.1 Evaluation of Green Infrastructure Techniques ..............................12 5.4 Step 4: Use of Standard Stormwater Management Practices .....................13 5.5 Step 5: Design of Volume and Peak Rate Control Practices ......................13 6.0 STORMWATER MANAGEMENT OBJECTIVES ....................................................14 6.1 Purpose and Methodology .............................................................................14 6.2 Stormwater Management Practices Employed............................................14 7.0 EROSION AND SEDIMENT CONTROLS ...............................................................15 7.1 Stabilization Requirements .............................................................................16 7.2 Trench De-Watering ........................................................................................16 7.3 Dust Control ......................................................................................................16 7.4 Construction Materials Management Plan ...................................................17 C.T. MALE ASSOCIATES STORMWATER POLLUTION PREVENTION PLAN (SWPPP) Hoffman Car Wash – 919 State Route 9 TABLE OF CONTENTS -ii- 7.5 Maintenance and Repairs ................................................................................18 8.0 INSPECTION AND MAINTENANCE REQUIREMENTS ....................................18 8.1 Contractor Requirements ................................................................................18 8.2 Qualified Inspector Requirements .................................................................19 8.3 SWPPP Inspection Requirements ..................................................................19 9.0 WINTER SHUTDOWN PLAN...................................................................................20 10.0 POST CONSTRUCTION OPERATIONS AND MAINTENANCE .......................20 10.1 Operations and Maintenance Manual ...........................................................20 FIGURE(S) 1 Site Location Map APPENDICES A SPDES General Permit GP-0-20-001 B Soils Information C NOI (Notice of Intent) Application Form D NYS OPRHP Correspondence E Drainage Maps and Supporting Calculations F Selected Site Plan(s) and Details G SWPPP Inspection Forms H Post-Construction Operations and Maintenance Manual (O&M Manual) I Notice of Termination (NOT) Form C.T. MALE ASSOCIATES - 1 - 1.0 CERTIFICATIONS 1.1 Contractor All Contractors and Subcontractors who perform earth disturbance on the project site shall sign and date a copy of the following certification statement before undertaking any construction activity at the project site: “I hereby certify that I understand and agree to comply with the terms and conditions of the SWPPP and agree to implement any corrective actions identified by the qualified inspector during a site inspection. I also understand that the owner or operator must comply with the terms and conditions of the most current version of the New York State Pollutant Discharge Elimination System (SPDES) general permit for stormwater discharges from construction activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore, I am aware that there are significant penalties for submitting false information that I do not believe to be true, including the possibility of fine and imprisonment for knowing violations.” CONTRACTOR: Company ____________________________________________________________ Name/Title/Date ____________________________________________________________ SUBCONTRACTOR: Company ____________________________________________________________ Name/Title/Date ____________________________________________________________ SUBCONTRACTOR: Company ____________________________________________________________ Name/Title/Date ____________________________________________________________ If additional Contractors/Subcontractors must sign the Stormwater Pollution Prevention Plan (SWPPP), please continue on the back of this page. C.T. MALE ASSOCIATES - 2 - 1.2 Contractor Responsibilities Prior to the commencement of construction activity, the Contractor(s) and Subcontractor(s) that shall be responsible for installing, constructing, repairing, inspecting and maintaining the erosion and sediment control measures included in the be identified. The following chart shall be filled out prior to commencement of construction by Owner/Operator. Task: Responsible Contractor: Installing erosion and sediment controls (ESC) ______________________________ Daily inspection of ESC ______________________________ Maintenance/Repair of ESC ______________________________ Seeding/stabilization of disturbed areas ______________________________ Each of the Contractors and Subcontractors shall identify at least one trained individual from their company who will be responsible for implementation of the SWPPP. One trained individual shall be on-site on a daily basis when soil disturbance activities are being performed. A trained contractor is defined by the General Permit as: An employee from a contracting (construction) firm that has received four (4) hours of training, which has been endorsed by the NYSDEC, from a Soil and Water Conservation District, CPESC, Inc., or other NYSDEC endorsed entity, in proper erosion and sediment control principles. After receiving the initial training, the trained contractor shall receive four (4) hours of training every three (3) years. This individual shall be responsible for implementation of the SWPPP. C.T. MALE ASSOCIATES - 3 - The following individuals have been identified on this project as trained contractors: CONTRACTOR: Company ____________________________________________________________ Trained Individual____________________________________________________________ SUBCONTRACTOR: Company ____________________________________________________________ Trained Individual____________________________________________________________ SUBCONTRACTOR: Company ____________________________________________________________ Trained Individual____________________________________________________________ C.T. MALE ASSOCIATES - 4 - 1.3 Certification of SWPPP Preparer “I hereby certify that the Stormwater Pollution Prevention Plan (SWPPP) for this project has been prepared in accordance with the terms and conditions of the General Permit (GP-0-20-001). Furthermore, I understand that certifying false, incorrect, or inaccurate information is a violation of this permit and the laws of the State of New York and could subject me to criminal, civil and/or administrative proceedings.” Name: Owen Speulstra Title: Project Engineer Signature: __________________________ Date: ___________________ C.T. MALE ASSOCIATES - 5 - 2.0 PERMIT OVERVIEW Refer to Appendix A for a copy of the SPDES General Permit GP-0-20-001. The technical standards for erosion and sediment controls are detailed in the “New York Standards and Specifications for Erosion and Sediment Control” published by the Empire State Chapter of the Soil and Water Conservation Society, dated November 2016. 2.1 General The conditions of the New York State Department of Environmental Conservation (NYSDEC) SPDES General Permit GP-0-20-001 for Stormwater Discharges from Construction Activities (henceforth referred to as General Permit) must be adhered to on this construction project. The SWPPP and the General Permit contain specific measures to be followed by the Contractor and Subcontractors to prevent pollutants from leaving the project site. Each Contractor or Subcontractor who performs earth disturbance must sign and complete the appropriate pages in Section 1.0 prior to start of work on this site. Contractors shall maintain a complete set of the documents comprising the SWPPP at the construction site for review by NYSDEC representatives at all times during the construction process. All SWPPP inspections shall be performed by the qualified inspector. Each Contractor shall include in their bid costs necessary to comply with the requirements of the SWPPP including, but not limited to: specific practices shown on the drawings, practices not shown on the drawings but necessary for the prevention of stormwater pollution and to ensure compliance with the conditions of the General Permit, preparation of required submittals, maintenance of the required erosion and sediment control measures, and removal of non-permanent practices in accordance with the approved construction sequence. The NOI (Notice of Intent), SWPPP, and inspection reports required by this permit are public documents that the Owner/Operator must make available for review and copying by any person within five (5) business days of the owner or operator receiving a written request by any such person to review the NOI, SWPPP or inspection reports. Copying of documents will be done at the requester’s expense. C.T. MALE ASSOCIATES - 6 - Revisions to the SWPPP and to the Erosion and Sediment Control Plan may occur during construction. Any additional instructions or directed changes made to the contract documents must be made by the Engineer and implemented by the Contractor as soon as practicable. The costs incurred to address these items should be included in the Contractor’s bid. 2.2 Execution of the General Permit Prior to initiation of any construction-related land disturbance, the Contractor shall notify the qualified inspector to conduct this inspection prior to initiating construction. A qualified inspector shall perform the first weekly site inspection and certify that the erosion and sediment control measures are in place, and then construction may begin. Contractors shall commence land disturbing construction activities only after evidence of the qualified inspector’s acceptance to the site erosion and sediment controls. Site disturbance without installation of proper erosion and sediment control measures and certification from the qualified professional is in direct violation of the General Permit. A Notice of Termination (NOT) shall be filed by Owner/Operator only when construction is complete and permanent stabilization of disturbed areas has occurred. A blank NOT is provided as Appendix I. 3.0 REQUIREMENTS AND TECHNICAL STANDARDS This SWPPP has been prepared in accordance with the following technical standards:  New York Standards and Specifications for Erosion and Sediment Control, published by the “Empire State Chapter of the Soil and Water Conservation Society,” dated November 2016. This is the technical standard for erosion and sediment controls.  New York State Stormwater Design Manual, published by “New York State Department of Environmental Conservation,” dated January 2015. This is the technical standard for design of stormwater management practices. C.T. MALE ASSOCIATES - 7 - 4.0 PROJECT OVERVIEW The proposed Hoffman Car Wash (Project) site is located at 919 State Route 9 in the Town of Queensbury, Warren County, New York. The project area contains an abandoned building (former car wash) and parking lot. The building and the parking lot will be removed. The site is bounded by the former vacant Outback Steakhouse restaurant (now 40 Oak American Grille) to the north and an apartment complex to the west, Route 9 to the east, and Weeks Road to the south. The work area occupies approximately 1.7 acres of an overall 2.0 acre parcel. A Site Location Map is included as Figure 1. As described above, the existing structure is currently abandoned and is a former car wash. The existing parking lot and building is approximately 0.62± acres. The Project includes the construction of a new car wash structure, associated parking areas and vacuum spaces. The project will increase impervious surfaces from what is existing. From a stormwater perspective, a significant portion of the site can be treated as redevelopment, which requires treatment of 25% of the calculated Water Quality volume (WQv) using a standard stormwater treatment practice, as defined by the New York State Stormwater Management Design Manual (NYSSMDM). Stormwater Management Practices (SMPs), which will treat stormwater runoff from both new and reconstructed impervious areas, have been designed in accordance with the NYSSMDM. 4.1 Existing Conditions Approximately 28% of the existing site is surfaced with impervious cover (i.e., pavement, building or concrete), including some of the area(s) where the proposed car wash is slated to be constructed. Based on site topography, flows from the existing site towards Weeks Road right of way south of the project area. After a review of the soil survey, it was determined that the site soils are predominantly classified as Hinckley cobbly sandy loam, which have a Hydrologic Soil Group (HSG) “A” designation. Based on Hydrologic Soil Group (HSG) “A” , and on-site infiltration testing, an infiltration rate of 2 minutes for 24 inch pipe to drain. A conservative rate of was 8 inches per hour was utilized for the calculations. Hydrologic Soil Group (HSG) “A” soils generally consist of soil which is conducive to infiltration; therefore, stormwater management practices that primarily rely on infiltration and pervious pavement have been incorporated into part of the proposed design. Slopes across the main project area are generally gradual. Soils information C.T. MALE ASSOCIATES - 8 - from the United States Department of Agriculture’s “Web Soil Survey”, as well as on-site soils testing, has been included in Appendix B, “Soils Information”. 4.2 General Permit Requirements The total amount of physical land disturbance associated with the Project will be greater than 1 acre but less than 5 acres; therefore, the Applicant is required to prepare apply for permit coverage under the SPDES General Permit (GP-0-20-001), which requires the preparation of a SWPPP and the submission of a completed Notice of Intent (NOI) to the NYSDEC prior to starting construction. Per the General Permit, a waiver is required if disturbance is anticipated to exceed 5 acres. The total site area is less than 5 acres and therefore, a 5-acre waiver will not be applied for. The Project proposes no impacts to delineated or mapped regulated wetlands (state or federal). Per requirements of the General Permit, is it required that this SWPPP provides documentation of due diligence review by New York State Office of Parks and Recreation and Historic Preservation (OPRHP). C.T. Male Associates initiated correspondence with OPRHP and will update the SWPPP when a determination is made by OPRHP. The Project site is not located in an enhanced phosphorus watershed, as described in Appendix C of the General Permit. The Project is located within a traditional land use control Municipal Separate Storm Sewer System (MS4), as the Town of Queensbury is a MS4 community. It is estimated that construction of the Project will commence in the spring of 2021 with an estimated completion time of summer 2022. 4.3 Post-Developed Conditions The proposed work includes the construction of a new car wash building, associated parking, and water, sewer and stormwater utilities. The proposed project will create approximately 0.42 acres of additional impervious area. Based on the site soils and treatment/detention requirements, the stormwater infrastructure to be constructed includes two (2) infiltration basin, and two (2) pervious pavement area unit and associated conveyance piping. There will be one infiltration basin in the southwestern portion of the site to treat and detain runoff from the majority of new impervious areas that are being created. This basin will be sized to accommodate the runoff from the stacking and automated pay area and road to the car C.T. MALE ASSOCIATES - 9 - wash main entrance, parking lot with vacuums, and a portion of the road/parking along the east side of the building. The basin has been designed in accordance with the NYSSMDM and will treat runoff from the WQv event and retain runoff from the 1-,10-year storm events. The 100-year storm does not exceed the capacity of the basin, and flow rates are controlled to existing conditions or less. In order to maintain the existing drainage routes as much as possible, the basin will contain an overflow outlet structure, which will discharge to an existing catch basin at the intersection of Weeks Road and State Route 9. This catch basin is designated as Design Location 1. The pervious pavement areas will be in the vacuum parking area at the southwest portion of the site. The outflow/overflow from the pervious pavement area will to an infiltration basin and discharge to the stormwater system located in State Route 9 and then ultimately to Design Point 1. The basin has been designed in accordance with the NYSSMDM and will treat runoff from the WQv event and retain runoff from the 1-,10-year storm events. The 100-year storm does exceed the capacity of the basin, and flow rates are controlled to existing conditions or less. A portion of the site to remain mostly undeveloped and open space will drain much as it does today to Design Point 2 which is located at the southwest corner of the site. C.T. MALE ASSOCIATES - 10 - 5.0 STORMWATER MANAGEMENT PLANNING The five-step stormwater management planning process described in Chapter 3 of the Stormwater Management Design Manual has been followed. The following sections describe each of the steps. 5.1 Step 1: Site Planning The following site planning measures described in the NYS Stormwater Management Design Manual have been evaluated below: 5.1.1 Preservation of Natural Features and Conservation Preservation of Undisturbed Areas – Undisturbed areas have been preserved to the maximum extent possible. Preservation of Buffers – Buffers have been preserved to the extent practicable. Reduction of Clearing and Grading - The clearing and grading limits have been reduced to the extent practical for this project. Locating Development in Less Sensitive Areas – The proposed project is not located in a sensitive area. Open Space Design - This practice is not applicable to this type of project. Soil Restoration - The grassed areas that are to be disturbed will be restored in accordance with the Soil Restoration requirements in Table 5.3 of the Design Manual, except where pavement improvements occur. 5.1.2 Reduction of Impervious Cover Roadway Reduction – The drive aisles have been reduced to the extent practicable. Sidewalk Reduction – The sidewalk widths have been reduced to the extent practicable. Driveway Reduction – Not applicable to this project. C.T. MALE ASSOCIATES - 11 - Building Footprint Reduction – The building footprints are in alignment with the needs of the client and have been reduced to the extent practicable. Parking Reduction – The number of parking spaces has been determined based on the requirements for the proposed facility use. 5.2 Step 2: Calculation of the Water Quality Volume (WQv) For stormwater management design purposes, the current project site (existing condition) is comprised of two (2) drainage areas and the proposed site has been divided into seven (7) subcatchments, which ultimately drain to the same design locations (DP-1 & DP-2) under both existing and proposed conditions. The stormwater treatment areas have been sized to treat 100% of the water quality volume (WQv) associated with new development and 25% of the WQv associated with redevelopment areas. The drainage subcatchments are shown on the existing and proposed conditions drainage maps, which are included in Appendix E. The treatment area was determined by summing the total area of new impervious and 25% of the area of impervious surfaces to be redeveloped. For this project, the area of new impervious was determined to be approximately 0.42 acres and the redeveloped impervious area was determined to be approximately 0.66 acres. When 100% of the new impervious area(s) and 25% of the redeveloped impervious area(s) are combined, the total required area to be treated is approximately 0.59 acres (the impervious area that will be treated by the Infiltration Basin is approximately 0.51 acres and the area to be treated by the Pervious Pavement areas is approximately 0.21 acres). The total calculated WQv required is approximately 2,442 CF (90% rainfall event (1.2), and the RV (0.95)). The WQv that will be treated by the Infiltration Basin is approximately 2,165 CF and the WQv that will be treated by the Pervious Pavement is approximately 869 CF. The total amount of treatment provided is 3,034 CF, which is greater than the calculated WQv required; therefore, the WQv treatment requirement has been met. Calculations for the WQv are included in Appendix E. 5.3 Step 3: Runoff Reduction Although runoff reduction is not required for redevelopment portions of the site, due to the presence of well-draining and the incorporation of infiltration practices, much of the WQv will be reduced. The minimum RRv for the newly created impervious areas is calculated to be 956 CF and the proposed practice(s) reduce the runoff by 3,034 CF; therefore, the RRv criteria is met C.T. MALE ASSOCIATES - 12 - for the new impervious portions of the project. Calculations for the RRv are included in Appendix E. 5.3.1 Evaluation of Green Infrastructure Techniques Conservation of Natural Areas – A large portion of the development will occur within a previously developed area and will limit impact any wooded/heavily vegetated areas. Approximately 0.30 acres will remain undisturbed. Sheet flow to Riparian Buffers or Filter Strips - This practice is not included; however, all buffers will remain undisturbed. Vegetated Swale – This practice is not included, as other GI practices were better suited to the project/buildings. Tree Planting / Tree Pit – Trees will be planted as a portion of this project; however, they are not counted towards GI credit. Disconnection of Rooftop Runoff – This practice is not included, as other GI practices were better suited to the project/buildings. Stream Daylighting - This practice is not applicable. Rain Gardens – This practice is not included, as other GI practices were better suited to the project/buildings. Green Roofs - This practice is not included, as other GI practices were better suited to the project/buildings. Stormwater Planters - This practice is not included, as other GI practices were better suited to the project/buildings. Rain Barrels and Cisterns - This practice is not included, as other GI practices were better suited to the project/buildings. Porous Pavement – This practice is included, approximately 0.21 acres of impervious will treated by impervious pavement. Standard SMPs with RRv Capacity – An infiltration basin is included in this project. C.T. MALE ASSOCIATES - 13 - 5.4 Step 4: Use of Standard Stormwater Management Practices One infiltration basin is being used as part of this project. 5.5 Step 5: Design of Volume and Peak Rate Control Practices Based on the characteristics of the on-site soils, practices which rely on infiltration were selected for use on this Project. HydroCAD Version 10.0 was utilized to model both existing and proposed conditions scenarios and compare peak runoff rates during various storm events. Printouts from HydroCAD are included in Appendix E of this SWPPP. The infiltration basins and pervious pavement provide sufficient treatment of the water quality volume and reduce the peak runoff rates, such that the post-construction volumes and peak rates of runoff are less than or equal to existing conditions rates. 1-year, 24-hour Rainfall Event Existing Conditions (cfs) Proposed Conditions (cfs) Design Point 1 0.86 0.18 10-year, 24-hour Rainfall Event Existing Conditions (cfs) Proposed Conditions (cfs) Design Point 1 2.57 1.14 100-year, 24-hour Rainfall Event Existing Conditions (cfs) Proposed Conditions (cfs) Design Point 1 5.90 3.35 C.T. MALE ASSOCIATES - 14 - 1-year, 24-hour Rainfall Event Existing Conditions (cfs) Proposed Conditions (cfs) Design Point 2 0.00 0.00 10-year, 24-hour Rainfall Event Existing Conditions (cfs) Proposed Conditions (cfs) Design Point 2 0.00 0.00 100-year, 24-hour Rainfall Event Existing Conditions (cfs) Proposed Conditions (cfs) Design Point 2 0.01 0.02 6.0 STORMWATER MANAGEMENT OBJECTIVES 6.1 Purpose and Methodology The purpose of the Stormwater Management Controls developed for the site is as follows: A. Maintain existing drainage patterns as much as possible and continue the conveyance of upland watershed runoff. B. Control increases in stormwater runoff resulting from the proposed development without adversely altering downstream conditions. C. Mitigate potential stormwater quality impacts and prevent soil erosion and sedimentation resulting from stormwater runoff. D. Control discharge volume(s). 6.2 Stormwater Management Practices Employed The Stormwater Management Practices (SMPs) to be installed include two (2) infiltration basins and two (2) areas of pervious pavement. Pretreatment for the first Infiltration Basin will be achieved by a combination of deep sumps with hoods, hydrodynamic treatment units prior to the piped entry and sediment forebay for the areas sheet flowing to the basin. Pretreatment for the second Infiltration Basin will be achieved by a combination of pervious pavement and deep C.T. MALE ASSOCIATES - 15 - sumps with hoods prior to the piped entry. Stormwater runoff from the car wash building and associated parking will sheet flow or collected by catch basins and directed to the Infiltration Basin. The existing drainage patterns have been maintained for the proposed development as much as possible. The stormwater management practices selected for use on this site will further help to mitigate potential stormwater quality impacts and limit soil erosion and sedimentation that can result from stormwater runoff. The software program HydroCAD, version 10.00, was utilized to perform hydrologic computations. There is one (1) design location shown on the drainage maps included in the calculations appendix. Runoff rates during the 10- and 100- year storm events have been controlled to be less than or equal to existing conditions peak runoff rates. 7.0 EROSION AND SEDIMENT CONTROLS The erosion and sediment controls for this project are in accordance with the New York Standards and Specifications for Erosion and Sediment Control, dated July 2016 (updated November 2016). Erosion control measures selected for this Project site include, but are not limited to, the following: silt fence, erosion control blanket, seeding/mulching and concrete washout(s). Refer to Appendix F, “Erosion and Sediment Control Plan and Details” for the locations of erosion and sediment control measures. The following are descriptions of each Erosion and Sediment Control practice to be used on-site and conditions of implementation:  Silt Fence/Compost Fiber Rolls – Install silt fence and/or compost fiber rolls as described in the construction sequencing notes on the ESC plan sheet, and per the silt fence detail on the ESC detail sheet. Silt fencing shall be installed prior to earth moving/soil disturbance activities and should be properly toed in. Compost fiber rolls can be used in lieu of silt fence and/or in areas where silt fence cannot be staked (i.e., on asphalt or other hardscaped area). Prefabricated silt fence units can be used in place of separate stakes/fabric rolls. Silt fence/compost fiber rolls shall be monitored throughout construction to ensure that they are functioning properly, and that sediment buildup is not excessive. Silt fence/compost fiber rolls shall remain in place until all tributary drainage areas have achieved sufficient stabilization (80% vegetative cover).  Stabilized Construction Entrance(s) – Stabilized construction entrances shall be installed in the locations shown on the ESC plan, and per the stabilized construction C.T. MALE ASSOCIATES - 16 - entrance detail on the ESC detail sheet. Stabilized construction entrances should be installed prior to the start of earth moving/soil disturbance activities on the project site. Construction entrances shall be maintained at all times and road sweeping at the entrances shall be conducted if sediment is tracked off-site. Stabilized construction entrances can be removed when the parking areas have been stabilized and sediment tracking is no longer a concern.  Concrete Washout – Concrete washouts should be installed so that concrete waste is contained and not littered around the site. The washouts should be constructed per the detail on the associated plans. Washouts should always be lined and concrete should be removed when the maximum capacity of the washout is near (when concrete waste level is within 1-foot of the top of washout). 7.1 Stabilization Requirements Stabilization in areas to remain vegetated shall consist of seeding and straw/mulch. The Contractor shall initiate stabilization measures as soon as practical in portions of the site where construction activities have temporarily or permanently ceased, but in no case more than fourteen (14) calendar days after construction activity in that portion of the site has temporarily or permanently ceased. This requirement does not apply in the following instances: A. When initiation of stabilization is not practicable due to excessive snow cover – the depth of acceptable snow cover is to be determined at the discretion of the regional DEC office. B. When construction activity on a portion of the site has temporarily ceased and earth- disturbing activities shall resume within twenty-one (21) calendar days, then temporary stabilization measures do not need to be initiated on that portion of the site. 7.2 Trench De-Watering Trench dewatering, if needed, shall be conducted using a portable pump and hose, or a vacuum tank truck, as needed. Water should be pumped to an appropriate, stabilized area, so as not to cause erosion. 7.3 Dust Control Dust shall be controlled on the Project by use of a water truck. The qualified inspector shall determine the frequency of water application in order to control dust. Chemicals or other C.T. MALE ASSOCIATES - 17 - methods of dust control are prohibited to be used on the Project, unless approved by NYSDEC Regional office. 7.4 Construction Materials Management Plan During construction, the following materials could be used and stored on-site: Concrete additives, paints/solvents, acids, cleaning products, petroleum-based products/fuel, pesticides, fertilizers, construction wastes, sanitary wastes, and tackifier for soil stabilization. The aforementioned materials shall be managed using the following procedures: 1. Good Housekeeping: 1.1. Store only products required to do the job on the site and use all of a product before disposing of the container. 1.2. All materials stored on-site shall be stored in a neat and orderly manner. Containers shall be stored with their lids on when not in use. Drip pans shall be provided under all dispensers. 1.3. Products shall be kept in their original container with manufacturers’ label. 1.4. Manufacturer’s recommendations for proper use and disposal shall be followed. 2. Hazardous Products: 2.1. Material Safety Data Sheets (MSDS) for each substance with hazardous properties shall be provided on-site. Each employee who must use the product shall be instructed on the use of MSDS Sheets and specific information applicable to that product. 2.2. If a surplus of the product must be disposed of, manufacturer’s, local/state/federal recommended methods for disposal shall be followed. 3. Petroleum Products: 3.1. All on-site vehicles shall be monitored for leaks and receive regular preventative maintenance to reduce the chance of leakage. 3.2. Petroleum products shall be sealed in properly labeled containers. 4. Fertilizers: 4.1. Fertilizers shall be applied in the minimum amounts recommended by the manufacturer and be immediately worked into the soil to limit exposure to stormwater. 4.2. Storage of fertilizers shall be placed in a plastic bin and stored in a covered area to prevent spills. 5. Paints, Solvents: C.T. MALE ASSOCIATES - 18 - 5.1. Excess paint and solvents shall not be discharged into the storm sewer and shall be properly disposed of according to New York State regulations. 6. Concrete Wastes: 6.1. Washwater may be disposed of on the site in a specifically designed diked area or into forms to make other useful concrete products. 6.2. Hardened residue from the concrete washout area shall be disposed of as construction waste. 6.3. All concrete wash areas shall be located in an area where it is not likely to contribute to stormwater discharged. This determination shall be made by the Engineer or qualified professional during construction. 7. Solid/Construction Wastes: 7.1. All waste materials shall be stored in an appropriate lidded dumpster and disposed of by a licensed waste management company in the State of New York. 7.2. No construction materials shall be buried on-site, and all personnel shall be instructed on correct procedures for waste disposal. 8. Sanitary Wastes: 8.1. All sanitary waste shall be collected from portable units by a New York State licensed portable facility provider. 8.2. All portable units shall be located in a place where it is not likely to contribute to stormwater discharge. 7.5 Maintenance and Repairs The Contractor is responsible to perform maintenance and repairs of the erosion and sediment control measures, within one (1) business day of the deficiencies being observed. The erosion and sediment control measures shall be installed and maintained by the Contractor until the vegetated areas have achieved 80% growth over the entirety of the site. 8.0 INSPECTION AND MAINTENANCE REQUIREMENTS 8.1 Contractor Requirements 1. All erosion and sediment control measures in the SWPPP and construction plans shall be maintained in effective operating condition during construction. 2. Per the General Permit, the Contractor shall inspect the erosion and sediment control measures in the SWPPP to ensure that they are being maintained in effective operating C.T. MALE ASSOCIATES - 19 - condition during construction. If soil disturbance activities have been temporarily suspended and temporary stabilization measures have been applied to disturbed areas, the Contractor may cease these ongoing inspections. 3. The Contractor may cease ongoing inspections of erosion and sediment control measures and remove these features when the Project has been completed and areas have received final stabilization as defined in Section 7.1 Stabilization Requirements. 8.2 Qualified Inspector Requirements The qualified inspector is defined by the General Permit as the following: A person 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, or other NYSDEC 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 received four (4) hours of NYSDEC endorsed training in proper erosion and sediment control principles. After receiving the initial training, the trained 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. 8.3 SWPPP Inspection Requirements The qualified inspector shall conduct site SWPPP inspections in accordance with the General Permit the following timetable: 1. Inspect the installed erosion and sediment control measures at the site prior to the start of construction activities. 2. Inspect the site once every seven (7)-calendar days during ongoing construction activities. 3. Inspect the site every thirty (30) days where soil disturbance activities have been temporarily suspended and temporary stabilization measures have been applied to disturbed areas. Owner/Operator shall contact the Reginal DEC Office in writing prior to reducing the frequency of inspections. 4. Inspect all points of discharge to natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction site. C.T. MALE ASSOCIATES - 20 - 5. Upon project completion, perform a final inspection to certify that the Project has achieved 80% vegetative cover. The inspector shall perform the SWPPP inspections in accordance with the General Permit requirements. Within one (1) business day of completing the SWPPP inspection, the qualified inspector shall notify the Owner/Operator and Contractor of any corrective actions that need to be taken. All completed SWPPP inspection forms shall be maintained in Appendix G of this SWPPP and shall be on the construction site at all times. 9.0 WINTER SHUTDOWN PLAN The Contractor shall notify the SWPPP inspector of the erosion control measures intended to stabilize the site against erosion. In preparation for winter shutdown, the Contractor shall provide and implement one (or a combination) of the following erosion control measures (within three days) on areas where vegetation has not been established:  jute/coconut fiber blankets;  geotextile;  tackifier;  hay/straw mulch; or  alternate method(s) acceptable to the Engineer and the NYSDEC. Following the SWPPP inspector’s acceptance of the erosion control measures selected for winter shutdown, the site shall have a minimum of one (1) SWPPP inspection conducted per month. Additionally, SWPPP inspections shall also be conducted after rainfalls in excess of one-half (½”) inch in a 24-hour period and after significant snowmelt occurs. If these inspections reveal areas damaged by erosion, the Contractor shall provide repairs prior to the next scheduled SWPPP inspection. If construction is to continue throughout the winter, the winter stabilization section of the NYS DEC “Blue” Book applies to all construction activities involved with ongoing land disturbance and exposure between November 15th and the following April 1st. Refer to page 2.38 of NYS DEC “Blue” Book for additional information related to stabilization requirements during this period. 10.0 POST CONSTRUCTION OPERATIONS AND MAINTENANCE 10.1 Operations and Maintenance Manual C.T. MALE ASSOCIATES - 21 - The Post Construction Operations and Maintenance Manual (O&M Manual) consists of maintenance procedures that shall be employed after construction has been completed and final stormwater management facilities are in operation. The O&M Manual identifies the components of the stormwater management system that shall be maintained on a regular basis to ensure proper function, useful life, and the design intent of the SMP(s). The Owner shall be responsible for maintenance of stormwater management facilities once construction has been completed. Refer to Appendix H “Post Construction Operations and Maintenance Manual.” C.T. MALE ASSOCIATES FIGURE 1 Site Location Map Figure 1 Hoffman Car Wash 919 State Route 9 Town of Queensbury Google Earth Location Map Site Location C.T. MALE ASSOCIATES APPENDIX A SPDES General Permit 0-20-001 WYORK Department of :TEOF OITTUNITY Environmental Conservation NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES From CONSTRUCTION ACTIVITY Permit No. GP-0-20-001 Issued Pursuant to Article 17, Titles 7, 8 and Article 70 of the Environmental Conservation Law Effective Date: January 29, 2020 Expiration Date: January 28, 2025 John J. Ferguson Chief Permit Administrator Address: NYS DEC Division of Environmental Permits 625 Broadway, 4th Floor Albany, N.Y. 12233-1750 I PREFACE Pursuant to Section 402 of the Clean Water Act (“CWA”), stormwater discharges from certain construction activities are unlawful unless they are authorized by a National Pollutant Discharge Elimination System (“NPDES”) permit or by a state permit program. New York administers the approved State Pollutant Discharge Elimination System (SPDES) program with permits issued in accordance with the New York State Environmental Conservation Law (ECL) Article 17, Titles 7, 8 and Article 70. An owner or operator of a construction activity that is eligible for coverage under this permit must obtain coverage prior to the commencement of construction activity. Activities that fit the definition of “construction activity”, as defined under 40 CFR 122.26(b)(14)(x), (15)(i), and (15)(ii), constitute construction of a point source and therefore, pursuant to ECL section 17-0505 and 17-0701, the owner or operator must have coverage under a SPDES permit prior to commencing construction activity. The owner or operator cannot wait until there is an actual discharge from the construction site to obtain permit coverage. *Note: The italicized words/phrases within this permit are defined in Appendix A. I NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM CONSTRUCTION ACTIVITIES Table of Contents Part 1. PERMIT COVERAGE AND LIMITATIONS .............................................................1 A. Permit Application .................................................................................................1 B. Effluent Limitations Applicable to Discharges from Construction Activities ...........1 C. Post-construction Stormwater Management Practice Requirements ....................4 D. Maintaining Water Quality .....................................................................................8 E. Eligibility Under This General Permit .....................................................................9 F. Activities Which Are Ineligible for Coverage Under This General Permit ..............9 Part II. PERMIT COVERAGE ...........................................................................................12 A. How to Obtain Coverage .....................................................................................12 B. Notice of Intent (NOI) Submittal ..........................................................................13 C. Permit Authorization ............................................................................................13 D. General Requirements For Owners or Operators With Permit Coverage ...........15 E. Permit Coverage for Discharges Authorized Under GP-0-15-002 .......................17 F. Change of Owner or Operator .............................................................................17 Part III. STORMWATER POLLUTION PREVENTION PLAN (SWPPP)...........................18 A. General SWPPP Requirements ..........................................................................18 B. Required SWPPP Contents ................................................................................20 C. Required SWPPP Components by Project Type .................................................24 Part IV. INSPECTION AND MAINTENANCE REQUIREMENTS .....................................24 A. General Construction Site Inspection and Maintenance Requirements ..............24 B. Contractor Maintenance Inspection Requirements .............................................24 C. Qualified Inspector Inspection Requirements ......................................................25 Part V. TERMINATION OF PERMIT COVERAGE ...........................................................29 A. Termination of Permit Coverage .........................................................................29 Part VI. REPORTING AND RETENTION RECORDS ......................................................31 A. Record Retention ................................................................................................31 B. Addresses ...........................................................................................................31 Part VII. STANDARD PERMIT CONDITIONS ..................................................................31 A. Duty to Comply....................................................................................................31 B. Continuation of the Expired General Permit ........................................................32 C. Enforcement ........................................................................................................32 D. Need to Halt or Reduce Activity Not a Defense...................................................32 E. Duty to Mitigate ...................................................................................................33 F. Duty to Provide Information .................................................................................33 G. Other Information ................................................................................................33 H. Signatory Requirements ......................................................................................33 I. Property Rights ...................................................................................................35 J. Severability..........................................................................................................35 K. Requirement to Obtain Coverage Under an Alternative Permit ...........................35 L. Proper Operation and Maintenance ....................................................................36 M. Inspection and Entry ...........................................................................................36 N. Permit Actions .....................................................................................................37 O. Definitions ...........................................................................................................37 P. Re-Opener Clause ..............................................................................................37 Q. Penalties for Falsification of Forms and Reports .................................................37 R. Other Permits ......................................................................................................38 APPENDIX A – Acronyms and Definitions .......................................................................39 Acronyms......................................................................................................................39 Definitions .....................................................................................................................40 APPENDIX B – Required SWPPP Components by Project Type ....................................48 Table 1..........................................................................................................................48 Table 2..........................................................................................................................50 APPENDIX C – Watersheds Requiring Enhanced Phosphorus Removal ........................52 APPENDIX D – Watersheds with Lower Disturbance Threshold .....................................58 APPENDIX E – 303(d) Segments Impaired by Construction Related Pollutant(s) ...........59 APPENDIX F – List of NYS DEC Regional Offices ..........................................................65 (Part I) Part 1. PERMIT COVERAGE AND LIMITATIONS A. Permit Application This permit authorizes stormwater discharges to surface waters of the State from the following construction activities identified within 40 CFR Parts 122.26(b)(14)(x), 122.26(b)(15)(i) and 122.26(b)(15)(ii), provided all of the eligibility provisions of this permit are met: 1. Construction activities involving soil disturbances of one (1) or more acres; including disturbances of less than one acre that are part of a larger common plan of development or sale that will ultimately disturb one or more acres of land; excluding routine maintenance activity that is performed to maintain the original line and grade, hydraulic capacity or original purpose of a facility; 2. Construction activities involving soil disturbances of less than one (1) acre where the Department has determined that a SPDES permit is required for stormwater discharges based on the potential for contribution to a violation of a water quality standard or for significant contribution of pollutants to surface waters of the State. 3. Construction activities located in the watershed(s) identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. B. Effluent Limitations Applicable to Discharges from Construction Activities Discharges authorized by this permit must achieve, at a minimum, the effluent limitations in Part I.B.1. (a) – (f) of this permit. These limitations represent the degree of effluent reduction attainable by the application of best practicable technology currently available. 1. Erosion and Sediment Control Requirements -The owner or operator must select, design, install, implement and maintain control measures to minimize the discharge of pollutants and prevent a violation of the water quality standards. The selection, design, installation, implementation, and maintenance of these control measures must meet the non-numeric effluent limitations in Part I.B.1.(a) – (f) of this permit and be in accordance with the New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016, using sound engineering judgment. Where control measures are not designed in conformance with the design criteria included in the technical standard, the owner or operator must include in the Stormwater Pollution Prevention Plan (“SWPPP”) the reason(s) for the 1 (Part I.B.1) deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. a. Erosion and Sediment Controls. Design, install and maintain effective erosion and sediment controls to minimize the discharge of pollutants and prevent a violation of the water quality standards. At a minimum, such controls must be designed, installed and maintained to: (i) Minimize soil erosion through application of runoff control and soil stabilization control measure to minimize pollutant discharges; (ii) Control stormwater discharges, including both peak flowrates and total stormwater volume, to minimize channel and streambank erosion and scour in the immediate vicinity of the discharge points; (iii) Minimize the amount of soil exposed during construction activity; (iv) Minimize the disturbance of steep slopes; (v) Minimize sediment discharges from the site; (vi) Provide and maintain natural buffers around surface waters, direct stormwater to vegetated areas and maximize stormwater infiltration to reduce pollutant discharges, unless infeasible; (vii) Minimize soil compaction. Minimizing soil compaction is not required where the intended function of a specific area of the site dictates that it be compacted; (viii) Unless infeasible, preserve a sufficient amount of topsoil to complete soil restoration and establish a uniform, dense vegetative cover; and (ix) Minimize dust. On areas of exposed soil, minimize dust through the appropriate application of water or other dust suppression techniques to control the generation of pollutants that could be discharged from the site. b. Soil Stabilization. In areas where soil disturbance activity has temporarily or permanently ceased, the application of soil stabilization measures must be initiated by the end of the next business day and completed within fourteen (14) days from the date the current soil disturbance activity ceased. For construction sites that directly discharge to one of the 303(d) segments 2 (Part I.B.1.b) listed in Appendix E or is located in one of the watersheds listed in Appendix C, the application of soil stabilization measures must be initiated by the end of the next business day and completed within seven (7) days from the date the current soil disturbance activity ceased. See Appendix A for definition of Temporarily Ceased. c. Dewatering. Discharges from dewatering activities, including discharges from dewatering of trenches and excavations, must be managed by appropriate control measures. d. Pollution Prevention Measures. Design, install, implement, and maintain effective pollution prevention measures to minimize the discharge of pollutants and prevent a violation of the water quality standards. At a minimum, such measures must be designed, installed, implemented and maintained to: (i) Minimize the discharge of pollutants from equipment and vehicle washing, wheel wash water, and other wash waters. This applies to washing operations that use clean water only. Soaps, detergents and solvents cannot be used; (ii) Minimize the exposure of building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, hazardous and toxic waste, and other materials present on the site to precipitation and to stormwater. Minimization of exposure is not required in cases where the exposure to precipitation and to stormwater will not result in a discharge of pollutants, or where exposure of a specific material or product poses little risk of stormwater contamination (such as final products and materials intended for outdoor use) ; and (iii) Prevent the discharge of pollutants from spills and leaks and implement chemical spill and leak prevention and response procedures. e. Prohibited Discharges. The following discharges are prohibited: (i) Wastewater from washout of concrete; (ii) Wastewater from washout and cleanout of stucco, paint, form release oils, curing compounds and other construction materials; 3 (Part I.B.1.e.iii) (iii) Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance; (iv) Soaps or solvents used in vehicle and equipment washing; and (v) Toxic or hazardous substances from a spill or other release. f. Surface Outlets. When discharging from basins and impoundments, the outlets shall be designed, constructed and maintained in such a manner that sediment does not leave the basin or impoundment and that erosion at or below the outlet does not occur. C. Post-construction Stormwater Management Practice Requirements 1. The owner or operator of a construction activity that requires post-construction stormwater management practices pursuant to Part III.C. of this permit must select, design, install, and maintain the practices to meet the performance criteria in the New York State Stormwater Management Design Manual (“Design Manual”), dated January 2015, using sound engineering judgment. Where post-construction stormwater management practices (“SMPs”) are not designed in conformance with the performance criteria in the Design Manual, the owner or operator must include in the SWPPP the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. 2. The owner or operator of a construction activity that requires post-construction stormwater management practices pursuant to Part III.C. of this permit must design the practices to meet the applicable sizing criteria in Part I.C.2.a., b., c. or d. of this permit. a. Sizing Criteria for New Development (i) Runoff Reduction Volume (“RRv”): Reduce the total Water Quality Volume (“WQv”) by application of RR techniques and standard SMPs with RRv capacity. The total WQv shall be calculated in accordance with the criteria in Section 4.2 of the Design Manual. (ii) Minimum RRv and Treatment of Remaining Total WQv: Construction activities that cannot meet the criteria in Part I.C.2.a.(i) of this permit due to site limitations shall direct runoff from all newly constructed impervious areas to a RR technique or standard SMP with RRv capacity unless infeasible. The specific site limitations that prevent the reduction of 100% of the WQv shall be documented in the SWPPP. 4 (Part I.C.2.a.ii) For each impervious area that is not directed to a RR technique or standard SMP with RRv capacity, the SWPPP must include documentation which demonstrates that all options were considered and for each option explains why it is considered infeasible. In no case shall the runoff reduction achieved from the newly constructed impervious areas be less than the Minimum RRv as calculated using the criteria in Section 4.3 of the Design Manual. The remaining portion of the total WQv that cannot be reduced shal l be treated by application of standard SMPs. (iii) Channel Protection Volume (“Cpv”): Provide 24 hour extended detention of the post-developed 1-year, 24-hour storm event; remaining after runoff reduction. The Cpv requirement does not apply when: (1) Reduction of the entire Cpv is achieved by application of runoff reduction techniques or infiltration systems, or (2) The site discharges directly to tidal waters, or fifth order or larger streams. (iv) Overbank Flood Control Criteria (“Qp”): Requires storage to attenuate the post-development 10-year, 24-hour peak discharge rate (Qp) to predevelopment rates. The Qp requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. (v) Extreme Flood Control Criteria (“Qf”): Requires storage to attenuate the post-development 100-year, 24-hour peak discharge rate (Qf) to predevelopment rates. The Qf requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. b. Sizing Criteria for New Development in Enhanced Phosphorus Removal Watershed (i) Runoff Reduction Volume (RRv): Reduce the total Water Quality Volume (WQv) by application of RR techniques and standard SMPs with RRv capacity. The total WQv is the runoff volume from the 1 -year, 24 hour design storm over the post-developed watershed and shall be 5 (Part I.C.2.b.i) calculated in accordance with the criteria in Section 10.3 of the Design Manual. (ii) Minimum RRv and Treatment of Remaining Total WQv: Construction activities that cannot meet the criteria in Part I.C.2.b.(i) of this permit due to site limitations shall direct runoff from all newly constructed impervious areas to a RR technique or standard SMP with RRv capacity unless infeasible. The specific site limitations that prevent the reduction of 100% of the WQv shall be documented in the SWPPP. For each impervious area that is not directed to a RR technique or standard SMP with RRv capacity, the SWPPP must include documentation which demonstrates that all options were considered and for each option explains why it is considered infeasible. In no case shall the runoff reduction achieved from the newly constructed impervious areas be less than the Minimum RRv as calculated using the criteria in Section 10.3 of the Design Manual. The remaining portion of the total WQv that cannot be reduced shall be treated by application of standard SMPs. (iii) Channel Protection Volume (Cpv): Provide 24 hour extended detention of the post-developed 1-year, 24-hour storm event; remaining after runoff reduction. The Cpv requirement does not apply when: (1) Reduction of the entire Cpv is achieved by application of runoff reduction techniques or infiltration systems, or (2) The site discharges directly to tidal waters, or fifth order or larger streams. (iv) Overbank Flood Control Criteria (Qp): Requires storage to attenuate the post-development 10-year, 24-hour peak discharge rate (Qp) to predevelopment rates. The Qp requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. (v) Extreme Flood Control Criteria (Qf): Requires storage to attenuate the post-development 100-year, 24-hour peak discharge rate (Qf) to predevelopment rates. The Qf requirement does not apply when: (1) the site discharges directly to tidal waters or fifth order or larger streams, or (2) A downstream analysis reveals that overbank control is not required. 6 (Part I.C.2.c) c. Sizing Criteria for Redevelopment Activity (i) Water Quality Volume (WQv): The WQv treatment objective for redevelopment activity shall be addressed by one of the following options. Redevelopment activities located in an Enhanced Phosphorus Removal Watershed (see Part III.B.3. and Appendix C of this permit) shall calculate the WQv in accordance with Section 10.3 of the Design Manual. All other redevelopment activities shall calculate the WQv in accordance with Section 4.2 of the Design Manual. (1) Reduce the existing impervious cover by a minimum of 25% of the total disturbed, impervious area. The Soil Restoration criteria in Section 5.1.6 of the Design Manual must be applied to all newly created pervious areas, or (2) Capture and treat a minimum of 25% of the WQv from the disturbed, impervious area by the application of standard SMPs; or reduce 25% of the WQv from the disturbed, impervious area by the application of RR techniques or standard SMPs with RRv capacity., or (3) Capture and treat a minimum of 75% of the WQv from the disturbed, impervious area as well as any additional runoff from tributary areas by application of the alternative practices discussed in Sections 9.3 and 9.4 of the Design Manual., or (4) Application of a combination of 1, 2 and 3 above that provide a weighted average of at least two of the above methods. Application of this method shall be in accordance with the criteria in Section 9.2.1(B) (IV) of the Design Manual. If there is an existing post-construction stormwater management practice located on the site that captures and treats runoff from the impervious area that is being disturbed, the WQv treatment option selected must, at a minimum, provide treatment equal to the treatment that was being provided by the existing practice(s) if that treatment is greater than the treatment required by options 1 – 4 above. (ii) Channel Protection Volume (Cpv): Not required if there are n o changes to hydrology that increase the discharge rate from the project site. (iii) Overbank Flood Control Criteria (Qp): Not required if there are no changes to hydrology that increase the discharge rate from the project site. (iv) Extreme Flood Control Criteria (Qf): Not required if there are no changes to hydrology that increase the discharge rate from the project site 7 (Part I.C.2.d) d. Sizing Criteria for Combination of Redevelopment Activity and New Development Construction projects that include both New Development and Redevelopment Activity shall provide post-construction stormwater management controls that meet the sizing criteria calculated as an aggregate of the Sizing Criteria in Part I.C.2.a. or b. of this permit for the New Development portion of the project and Part I.C.2.c of this permit for Redevelopment Activity portion of the project. D. Maintaining Water Quality The Department expects that compliance with the conditions of this permit will control discharges necessary to meet applicable water quality standards. It shall be a violation of the ECL for any discharge to either cause or contribute to a violation of water quality standards as contained in Parts 700 through 705 of Title 6 of the Official Comp ilation of Codes, Rules and Regulations of the State of New York, such as: 1. There shall be no increase in turbidity that will cause a substantial visible contrast to natural conditions; 2. There shall be no increase in suspended, colloidal or settleable solids that will cause deposition or impair the waters for their best usages; and 3. There shall be no residue from oil and floating substances, nor visible oil film, nor globules of grease. If there is evidence indicating that the stormwater discharges authorized by this permit are causing, have the reasonable potential to cause, or are contributing to a violation of the water quality standards; the owner or operator must take appropriate corrective action in accordance with Part IV.C.5. of this general permit and document in accordance with Part IV.C.4. of this general permit. To address the water quality standard violation the owner or operator may need to provide additional information, include and implement appropriate controls in the SWPPP to correct the problem, or obtain an individual SPDES permit. If there is evidence indicating that despite compliance with the terms and conditions of this general permit it is demonstrated that the stormwater discharges authorized by this permit are causing or contributing to a violation of water quality standards, or if the Department determines that a modification of the permit is necessary to prevent a violation of water quality standards, the authorized discharges will no longer be eligible for coverage under this permit. The Department may require the owner or operator to obtain an individual SPDES permit to continue discharging. 8 (Part I.E) E. Eligibility Under This General Permit 1. This permit may authorize all discharges of stormwater from construction activity to surface waters of the State and groundwaters except for ineligible discharges identified under subparagraph F. of this Part. 2. Except for non-stormwater discharges explicitly listed in the next paragraph, this permit only authorizes stormwater discharges; including stormwater runoff, snowmelt runoff, and surface runoff and drainage, from construction activities. 3. Notwithstanding paragraphs E.1 and E.2 above, the following non-stormwater discharges are authorized by this permit: those listed in 6 NYCRR 750- 1.2(a)(29)(vi), with the following exception: “Discharges from firefighting activities are authorized only when the firefighting activities are emergencies/unplanned”; waters to which other components have not been added that are used to control dust in accordance with the SWPPP ; and uncontaminated discharges from construction site de-watering operations. All non-stormwater discharges must be identified in the SWPPP. Under all circumstances, the owner or operator must still comply with water quality standards in Part I.D of this permit. 4. The owner or operator must maintain permit eligibility to discharge under this permit. Any discharges that are not compliant with the eligibility conditions of this permit are not authorized by the permit and the owner or operator must either apply for a separate permit to cover those ineligible discharges or take steps necessary to make the discharge eligible for coverage. F. Activities Which Are Ineligible for Coverage Under This General Permit All of the following are not authorized by this permit: 1. Discharges after construction activities have been completed and the site has undergone final stabilization; 2. Discharges that are mixed with sources of non-stormwater other than those expressly authorized under subsection E.3. of this Part and identified in the SWPPP required by this permit; 3. Discharges that are required to obtain an individual SPDES permit or another SPDES general permit pursuant to Part VII.K. of this permit; 4. Construction activities or discharges from construction activities that may adversely affect an endangered or threatened species unless the owner or 9 (Part I.F.4) operator has obtained a permit issued pursuant to 6 NYCRR Part 182 for the project or the Department has issued a letter of non -jurisdiction for the project. All documentation necessary to demonstrate eligibility shall be maintained on site in accordance with Part II.D.2 of this permit; 5. Discharges which either cause or contribute to a violation of water quality standards adopted pursuant to the ECL and its accompanying regulations; 6. Construction activities for residential, commercial and institutional projects: a. Where the discharges from the construction activities are tributary to waters of the state classified as AA or AA-s; and b. Which are undertaken on land with no existing impervious cover; and c. Which disturb one (1) or more acres of land designated on the current United States Department of Agriculture (“USDA”) Soil Survey as Soil Slope Phase “D”, (provided the map unit name is inclusive of slopes greater than 25%), or Soil Slope Phase “E” or “F” (regardless of the map unit name), or a combination of the three designations. 7. Construction activities for linear transportation projects and linear utility projects: a. Where the discharges from the construction activities are tributary to waters of the state classified as AA or AA-s; and b. Which are undertaken on land with no existing impervious cover; and c. Which disturb two (2) or more acres of land designated on the current USDA Soil Survey as Soil Slope Phase “D” (provided the map unit name is inclusive of slopes greater than 25%), or Soil Slope Phase “E” or “F” (regardless of the map unit name), or a combination of the three designations. 10 (Part I.F.8) 8. Construction activities that have the potential to affect an historic property, unless there is documentation that such impacts have been resolved. The following documentation necessary to demonstrate eligibility with this requirement shall be maintained on site in accordance with Part II.D.2 of this permit and made available to the Department in accordance with Part VII.F of this permit: a. Documentation that the construction activity is not within an archeologically sensitive area indicated on the sensitivity map, and that the construction activity is not located on or immediately adjacent to a property listed or determined to be eligible for listing on the National or State Registers of Historic Places, and that there is no new permanent building on the construction site within the following distances from a building, structure, or object that is more than 50 years old, or if there is such a new permanent building on the construction site within those parameters that NYS Office of Parks, Recreation and Historic Preservation (OPRHP), a Historic Preservation Commission of a Certified Local Government, or a qualified preservation professional has determined that the building, structure, or object more than 50 years old is not historically/archeologically significant. ▪1-5 acres of disturbance -20 feet ▪5-20 acres of disturbance -50 feet ▪20+ acres of disturbance -100 feet, or b. DEC consultation form sent to OPRHP, and copied to the NYS DEC Agency Historic Preservation Officer (APO), and (i) the State Environmental Quality Review (SEQR) Environmental Assessment Form (EAF) with a negative declaration or the Findings Statement, with documentation of OPRHP’s agreement with the resolution; or (ii) documentation from OPRHP that the construction activity will result in No Impact; or (iii) documentation from OPRHP providing a determination of No Adverse Impact; or (iv) a Letter of Resolution signed by the owner/operator, OPRHP and the DEC APO which allows for this construction activity to be eligible for coverage under the general permit in terms of the State Historic Preservation Act (SHPA); or c. Documentation of satisfactory compliance with Section 106 of the National Historic Preservation Act for a coterminous project area: 11 (Part I.F.8.c) (i) No Affect (ii) No Adverse Affect (iii) Executed Memorandum of Agreement, or d. Documentation that: (i) SHPA Section 14.09 has been completed by NYS DEC or another state agency. 9. Discharges from construction activities that are subject to an existing SPDES individual or general permit where a SPDES permit for construction activity has been terminated or denied; or where the owner or operator has failed to renew an expired individual permit. Part II. PERMIT COVERAGE A. How to Obtain Coverage 1. An owner or operator of a construction activity that is not subject to the requirements of a regulated, traditional land use control MS4 must first prepare a SWPPP in accordance with all applicable requirements of this permit and then submit a completed Notice of Intent (NOI) to the Department to be authorized to discharge under this permit. 2. An owner or operator of a construction activity that is subject to the requirements of a regulated, traditional land use control MS4 must first prepare a SWPPP in accordance with all applicable requirements of this permit and then have the SWPPP reviewed and accepted by the regulated, traditional land use control MS4 prior to submitting the NOI to the Department. The owner or operator shall have the “MS4 SWPPP Acceptance” form signed in accordance with Part VII.H., and then submit that form along with a completed NOI to the Department. 3. The requirement for an owner or operator to have its SWPPP reviewed and accepted by the regulated, traditional land use control MS4 prior to submitting the NOI to the Department does not apply to an owner or operator that is obtaining permit coverage in accordance with the requirements in Part II.F. (Change of Owner or Operator) or where the owner or operator of the construction activity is the regulated, traditional land use control MS4 . This exemption does not apply to construction activities subject to the New York City Administrative Code. 12 (Part II.B) B. Notice of Intent (NOI) Submittal 1. Prior to December 21, 2020, an owner or operator shall use either the electronic (eNOI) or paper version of the NOI that the Department prepared. Both versions of the NOI are located on the Department’s website (http://www.dec.ny.gov/ ). The paper version of the NOI shall be signed in accordance with Part VII.H. of this permit and submitted to the following address: NOTICE OF INTENT NYS DEC, Bureau of Water Permits 625 Broadway, 4th Floor Albany, New York 12233-3505 2. Beginning December 21, 2020 and in accordance with EPA’s 2015 NPDES Electronic Reporting Rule (40 CFR Part 127), the owner or operator must submit the NOI electronically using the Department’s online NOI. 3. The owner or operator shall have the SWPPP preparer sign the “SWPPP Preparer Certification” statement on the NOI prior to submitting the form to the Department. 4. As of the date the NOI is submitted to the Department, the owner or operator shall make the NOI and SWPPP available for review and copying in accordance with the requirements in Part VII.F. of this permit. C. Permit Authorization 1. An owner or operator shall not commence construction activity until their authorization to discharge under this permit goes into effect. 2. Authorization to discharge under this permit will be effective when the owner or operator has satisfied all of the following criteria: a. project review pursuant to the State Environmental Quality Review Act (“SEQRA”) have been satisfied, when SEQRA is applicable. See the Department’s website (http://www.dec.ny.gov/) for more information, b. where required, all necessary Department permits subject to the Uniform Procedures Act (“UPA”) (see 6 NYCRR Part 621), or the equivalent from another New York State agency, have been obtained, unless otherwise notified by the Department pursuant to 6 NYCRR 621.3(a)(4). Owners or operators of construction activities that are required to obtain UPA permits 13 (Part II.C.2.b) must submit a preliminary SWPPP to the appropriate DEC Permit Administrator at the Regional Office listed in Appendix F at the time all other necessary UPA permit applications are submitted. The preliminary SWPPP must include sufficient information to demonstrate that the construction activity qualifies for authorization under this permit, c. the final SWPPP has been prepared, and d. a complete NOI has been submitted to the Department in accordance with the requirements of this permit. 3. An owner or operator that has satisfied the requirements of Part II.C.2 above will be authorized to discharge stormwater from their construction activity in accordance with the following schedule: a. For construction activities that are not subject to the requirements of a regulated, traditional land use control MS4: (i) Five (5) business days from the date the Department receives a complete electronic version of the NOI (eNOI) for construction activities with a SWPPP that has been prepared in conformance with the design criteria in the technical standard referenced in Part III.B.1 and the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, for construction activities that require post-construction stormwater management practices pursuant to Part III.C.; or (ii) Sixty (60) business days from the date the Department receives a complete NOI (electronic or paper version) for construction activities with a SWPPP that has not been prepared in conformance with the design criteria in technical standard referenced in Part III.B.1. or, for construction activities that require post-construction stormwater management practices pursuant to Part III.C., the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, or; (iii) Ten (10) business days from the date the Department receives a complete paper version of the NOI for construction activities with a SWPPP that has been prepared in conformance with the design criteria in the technical standard referenced in Part III.B.1 and the performance criteria in the technical standard referenced in Parts III.B., 2 or 3, for construction activities that require post-construction stormwater management practices pursuant to Part III.C. 14 (Part II.C.3.b) b. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4: (i) Five (5) business days from the date the Department receives both a complete electronic version of the NOI (eNOI) and signed “MS4 SWPPP Acceptance” form, or (ii) Ten (10) business days from the date the Department receives both a complete paper version of the NOI and signed “MS4 SWPPP Acceptance” form. 4. Coverage under this permit authorizes stormwater discharges from only those areas of disturbance that are identified in the NOI. If an owner or operator wishes to have stormwater discharges from future or additional areas of disturbance authorized, they must submit a new NOI that addresses that phase of the development, unless otherwise notified by the Department. The owner or operator shall not commence construction activity on the future or additional areas until their authorization to discharge under this permit goes into effect in accordance with Part II.C. of this permit. D. General Requirements For Owners or Operators With Permit Coverage 1. The owner or operator shall ensure that the provisions of the SWPPP are implemented from the commencement of construction activity until all areas of disturbance have achieved final stabilization and the Notice of Termination (“NOT”) has been submitted to the Department in accordance with Part V. of this permit. This includes any changes made to the SWPPP pursuant to Part III.A.4. of this permit. 2. The owner or operator shall maintain a copy of the General Permit (GP-0-20- 001), NOI, NOI Acknowledgment Letter, SWPPP, MS4 SWPPP Acceptance form, inspection reports, responsible contractor’s or subcontractor’s certification statement (see Part III.A.6.), and all documentation necessary to demonstrate eligibility with this permit at the construction site until all disturbed areas have achieved final stabilization and the NOT has been submitted to the Department. The documents must be maintained in a secure location, such as a job trailer, on-site construction office, or mailbox with lock. The secure location must be accessible during normal business hours to an individual performing a compliance inspection. 3. The owner or operator of a construction activity shall not disturb greater than five (5) acres of soil at any one time without prior written authorization from the Department or, in areas under the jurisdiction of a regulated, traditional land 15 (Part II.D.3) use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity). At a minimum, the owner or operator must comply with the following requirements in order to be authorized to disturb greater than fi ve (5) acres of soil at any one time: a. The owner or operator shall have a qualified inspector conduct at least two (2) site inspections in accordance with Part IV.C. of this permit every seven (7) calendar days, for as long as greater than five (5) acres of soil remain disturbed. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. b. In areas where soil disturbance activity has temporarily or permanently ceased, the application of soil stabilization measures must be initiated by the end of the next business day and completed within seven (7) days from the date the current soil disturbance activity ceased. The soil stabilization measures selected shall be in conformance with the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016. c. The owner or operator shall prepare a phasing plan that defines maximum disturbed area per phase and shows required cuts and fills. d. The owner or operator shall install any additional site-specific practices needed to protect water quality. e. The owner or operator shall include the requirements above in their SWPPP. 4. In accordance with statute, regulations, and the terms and conditions of this permit, the Department may suspend or revoke an owner’s or operator’s coverage under this permit at any time if the Department determines that the SWPPP does not meet the permit requirements or consistent with Part VII.K.. 5. Upon a finding of significant non-compliance with the practices described in the SWPPP or violation of this permit, the Department may order an immediate stop to all activity at the site until the non-compliance is remedied. The stop work order shall be in writing, describe the non-compliance in detail, and be sent to the owner or operator. 6. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4, the owner or operator shall notify the 16 (Part II.D.6) regulated, traditional land use control MS4 in writing of any planned amendments or modifications to the post-construction stormwater management practice component of the SWPPP required by Part III.A. 4. and 5. of this permit. Unless otherwise notified by the regulated, traditional land use control MS4, the owner or operator shall have the SWPPP amendments or modifications reviewed and accepted by the regulated, traditional land use control MS4 prior to commencing construction of the post-construction stormwater management practice. E. Permit Coverage for Discharges Authorized Under GP-0-15-002 1. Upon renewal of SPDES General Permit for Stormwater Discharges from Construction Activity (Permit No. GP-0-15-002), an owner or operator of a construction activity with coverage under GP-0-15-002, as of the effective date of GP-0-20-001, shall be authorized to discharge in accordance with GP-0-20- 001, unless otherwise notified by the Department. An owner or operator may continue to implement the technical/design components of the post-construction stormwater management controls provided that such design was done in conformance with the technical standards in place at the time of initial project authorization. However, they must comply with the other, non-design provisions of GP-0-20-001. F. Change of Owner or Operator 1. When property ownership changes or when there is a change in operational control over the construction plans and specifications, the original owner or operator must notify the new owner or operator, in writing, of the requirement to obtain permit coverage by submitting a NOI with the Department. For construction activities subject to the requirements of a regulated, traditional land use control MS4, the original owner or operator must also notify the MS4, in writing, of the change in ownership at least 30 calendar days prior to the change in ownership. 2. Once the new owner or operator obtains permit coverage, the original owner or operator shall then submit a completed NOT with the name and permit identification number of the new owner or operator to the Department at the address in Part II.B.1. of this permit. If the original owner or operator maintains ownership of a portion of the construction activity and will disturb soil, they must maintain their coverage under the permit. 3. Permit coverage for the new owner or operator will be effective as of the date the Department receives a complete NOI, provided the original owner or 17 (Part II.F.3) operator was not subject to a sixty (60) business day authorization period that has not expired as of the date the Department receives the NOI from the new owner or operator. Part III. STORMWATER POLLUTION PREVENTION PLAN (SWPPP) A. General SWPPP Requirements 1. A SWPPP shall be prepared and implemented by the owner or operator of each construction activity covered by this permit. The SWPPP must document the selection, design, installation, implementation and maintenance of the control measures and practices that will be used to meet the effluent limitations in Part I.B. of this permit and where applicable, the post-construction stormwater management practice requirements in Part I.C. of this permit. The SWPPP shall be prepared prior to the submittal of the NOI. The NOI shall be submitted to the Department prior to the commencement of construction activity. A copy of the completed, final NOI shall be included in the SWPPP. 2. The SWPPP shall describe the erosion and sediment control practices and where required, post-construction stormwater management practices that will be used and/or constructed to reduce the pollutants in stormwater discharges and to assure compliance with the terms and conditions of this permit. In addition, the SWPPP shall identify potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges. 3. All SWPPPs that require the post-construction stormwater management practice component shall be prepared by a qualified professional that is knowledgeable in the principles and practices of stormwater management and treatment. 4. The owner or operator must keep the SWPPP current so that it at all times accurately documents the erosion and sediment controls practices that are being used or will be used during construction, and all post-construction stormwater management practices that will be constructed on the site. At a minimum, the owner or operator shall amend the SWPPP, including construction drawings: a. whenever the current provisions prove to be ineffective in minimizing pollutants in stormwater discharges from the site; 18 (Part III.A.4.b) b. whenever there is a change in design, construction, or operation at the construction site that has or could have an effect on the discharge of pollutants; c. to address issues or deficiencies identified during an inspection by the qualified inspector, the Department or other regulatory authority; and d. to document the final construction conditions. 5. The Department may notify the owner or operator at any time that the SWPPP does not meet one or more of the minimum requirements of this permit. The notification shall be in writing and identify the provisions of the SWPPP that require modification. Within fourteen (14) calendar days of such notificati on, or as otherwise indicated by the Department, the owner or operator shall make the required changes to the SWPPP and submit written notification to the Department that the changes have been made. If the owner or operator does not respond to the Department’s comments in the specified time frame, the Department may suspend the owner’s or operator’s coverage under this permit or require the owner or operator to obtain coverage under an individual SPDES permit in accordance with Part II.D.4. of this permit. 6. Prior to the commencement of construction activity, the owner or operator must identify the contractor(s) and subcontractor(s) that will be responsible for installing, constructing, repairing, replacing, inspecting and maintaining the erosion and sediment control practices included in the SWPPP; and the contractor(s) and subcontractor(s) that will be responsible for constructing the post-construction stormwater management practices included in the SWPPP. The owner or operator shall have each of the contractors and subcontractors identify at least one person from their company that will be responsible for implementation of the SWPPP. This person shall be known as the trained contractor. The owner or operator shall ensure that at least one trained contractor is on site on a daily basis when soil disturbance activities are being performed. The owner or operator shall have each of the contractors and subcontractors identified above sign a copy of the following certification statement below before they commence any construction activity: "I hereby certify under penalty of law that I understand and agree to comply with the terms and conditions of the SWPPP and agree to implement any corrective actions identified by the qualified inspector during a site inspection. I also understand that the owner or operator must comply with 19 (Part III.A.6) the terms and conditions of the most current version of the New York State Pollutant Discharge Elimination System ("SPDES") general permit for stormwater discharges from construction activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore, I am aware that there are significant penalties for submitting false information, that I do not believe to be true, including the possibility of fine and imprisonment for knowing violations" In addition to providing the certification statement above, the certification page must also identify the specific elements of the SWPPP that each contractor and subcontractor will be responsible for and include the name and title of the person providing the signature; the name and title of the trained contractor responsible for SWPPP implementation; the name, address and telephone number of the contracting firm; the address (or other identifying description) of the site; and the date the certification statement is signed. The owner or operator shall attach the certification statement(s) to the copy of the SWPPP that is maintained at the construction site. If new or additional contractors are hired to implement measures identified in the SWPPP after construction has commenced, they must also sign the certification statement and provide the information listed above. 7. For projects where the Department requests a copy of the SWPPP or inspection reports, the owner or operator shall submit the documents in both electronic (PDF only) and paper format within five (5) business days, unless otherwise notified by the Department. B. Required SWPPP Contents 1. Erosion and sediment control component -All SWPPPs prepared pursuant to this permit shall include erosion and sediment control practices designed in conformance with the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016. Where erosion and sediment control practices are not designed in conformance with the design criteria included in the technical standard, the owner or operator must demonstrate equivalence to the technical standard. At a minimum, the erosion and sediment control component of the SWPPP shall include the following: a. Background information about the scope of the project, including the location, type and size of project 20 (Part III.B.1.b) b. A site map/construction drawing(s) for the project, including a general location map. At a minimum, the site map shall show the total site area; all improvements; areas of disturbance; areas that will not be disturbed; existing vegetation; on-site and adjacent off-site surface water(s); floodplain/floodway boundaries; wetlands and drainage patterns that could be affected by the construction activity; existing and final contours ; locations of different soil types with boundaries; material, waste, borrow or equipment storage areas located on adjacent properties; and location(s) of the stormwater discharge(s); c. A description of the soil(s) present at the site, including an identification of the Hydrologic Soil Group (HSG); d. A construction phasing plan and sequence of operations describing the intended order of construction activities, including clearing and grubbing, excavation and grading, utility and infrastructure installation and any other activity at the site that results in soil disturbance; e. A description of the minimum erosion and sediment control practices to be installed or implemented for each construction activity that will result in soil disturbance. Include a schedule that identifies the timing of initial placement or implementation of each erosion and sediment control practice and the minimum time frames that each practice should remain in place or be implemented; f. A temporary and permanent soil stabilization plan that meets the requirements of this general permit and the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016, for each stage of the project, including initial land clearing and grubbing to project completion and achievement of final stabilization; g. A site map/construction drawing(s) showing the specific location(s), size(s), and length(s) of each erosion and sediment control practice; h. The dimensions, material specifications, installation details, and operation and maintenance requirements for all erosion and sediment control practices. Include the location and sizing of any temporary sediment basins and structural practices that will be used to divert flows from exposed soils; i. A maintenance inspection schedule for the contractor(s) identified in Part III.A.6. of this permit, to ensure continuous and effective operation of the erosion and sediment control practices. The maintenance inspection 21 (Part III.B.1.i) schedule shall be in accordance with the requirements in the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016; j. A description of the pollution prevention measures that will be used to control litter, construction chemicals and construction debris from becoming a pollutant source in the stormwater discharges; k. A description and location of any stormwater discharges associated with industrial activity other than construction at the site, including, but not limited to, stormwater discharges from asphalt plants and concrete plants located on the construction site; and l. Identification of any elements of the design that are not in conformance with the design criteria in the technical standard, New York State Standards and Specifications for Erosion and Sediment Control, dated November 2016. Include the reason for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. 2. Post-construction stormwater management practice component – The owner or operator of any construction project identified in Table 2 of Appendix B as needing post-construction stormwater management practices shall prepare a SWPPP that includes practices designed in conformance with the applicable sizing criteria in Part I.C.2.a., c. or d. of this permit and the performance criteria in the technical standard, New York State Stormwater Management Design Manual dated January 2015 Where post-construction stormwater management practices are not designed in conformance with the performance criteria in the technical standard, the owner or operator must include in the SWPPP the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alternative design is equivalent to the technical standard. The post-construction stormwater management practice component of the SWPPP shall include the following: a. Identification of all post-construction stormwater management practices to be constructed as part of the project. Include the dimensions, material specifications and installation details for each post-construction stormwater management practice; 22 (Part III.B.2.b) b. A site map/construction drawing(s) showing the specific location and size of each post-construction stormwater management practice; c. A Stormwater Modeling and Analysis Report that includes: (i) Map(s) showing pre-development conditions, including watershed/subcatchments boundaries, flow paths/routing, and design points; (ii) Map(s) showing post-development conditions, including watershed/subcatchments boundaries, flow paths/routing, design points and post-construction stormwater management practices; (iii) Results of stormwater modeling (i.e. hydrology and hydraulic analysis) for the required storm events. Include supporting calculations (model runs), methodology, and a summary table that compares pre and post - development runoff rates and volumes for the different storm events; (iv) Summary table, with supporting calculations, which demonstrates that each post-construction stormwater management practice has been designed in conformance with the sizing criteria included in the Design Manual; (v) Identification of any sizing criteria that is not required based on the requirements included in Part I.C. of this permit; and (vi) Identification of any elements of the design that are not in conformance with the performance criteria in the Design Manual. Include the reason(s) for the deviation or alternative design and provide information which demonstrates that the deviation or alt ernative design is equivalent to the Design Manual; d. Soil testing results and locations (test pits, borings); e. Infiltration test results, when required; and f. An operations and maintenance plan that includes inspection and maintenance schedules and actions to ensure continuous and effective operation of each post-construction stormwater management practice. The plan shall identify the entity that will be responsible for the long term operation and maintenance of each practice. 23 (Part III.B.3) 3. Enhanced Phosphorus Removal Standards -All construction projects identified in Table 2 of Appendix B that are located in the watersheds identified in Appendix C shall prepare a SWPPP that includes post -construction stormwater management practices designed in conformance with the applicable sizing criteria in Part I.C.2. b., c. or d. of this permit and the performance criteria, Enhanced Phosphorus Removal Standards included in the Design Manual. At a minimum, the post-construction stormwater management practice component of the SWPPP shall include items 2.a -2.f. above. C. Required SWPPP Components by Project Type Unless otherwise notified by the Department, owners or operators of construction activities identified in Table 1 of Appendix B are required to prepare a SWPPP that only includes erosion and sediment control practices designed in conformance with Part III.B.1 of this permit. Owners or operators of the construction activities identified in Table 2 of Appendix B shall prepare a SWPPP that also includes post-construction stormwater management practices designed in conformance with Part III.B.2 or 3 of this permit. Part IV. INSPECTION AND MAINTENANCE REQUIREMENTS A. General Construction Site Inspection and Maintenance Requirements 1. The owner or operator must ensure that all erosion and sediment control practices (including pollution prevention measures) and all post-construction stormwater management practices identified in the SWPPP are inspected and maintained in accordance with Part IV.B. and C. of this permit. 2. The terms of this permit shall not be construed to prohibit the State of New York from exercising any authority pursuant to the ECL, common law or federal law, or prohibit New York State from taking any measures, whether civil or criminal, to prevent violations of the laws of the State of New York or protect the public health and safety and/or the environment. B. Contractor Maintenance Inspection Requirements 1. The owner or operator of each construction activity identified in Tables 1 and 2 of Appendix B shall have a trained contractor inspect the erosion and sediment control practices and pollution prevention measures being implemented within the active work area daily to ensure that they are being maintained in effective operating condition at all times. If deficiencies are identified, the contractor shall 24 (Part IV.B.1) begin implementing corrective actions within one business day and shall complete the corrective actions in a reasonable time frame. 2. For construction sites where soil disturbance activities have been temporarily suspended (e.g. winter shutdown) and temporary stabilization measures have been applied to all disturbed areas, the trained contractor can stop conducting the maintenance inspections. The trained contractor shall begin conducting the maintenance inspections in accordance with Part IV.B.1. of this permit as soon as soil disturbance activities resume. 3. For construction sites where soil disturbance activities have been shut down with partial project completion, the trained contractor can stop conducting the maintenance inspections if all areas disturbed as of the project shutdown date have achieved final stabilization and all post-construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational. C. Qualified Inspector Inspection Requirements The owner or operator shall have a qualified inspector conduct site inspections in conformance with the following requirements: [Note: The trained contractor identified in Part III.A.6. and IV.B. of this permit cannot conduct the qualified inspector site inspections unless they meet the qualified inspector qualifications included in Appendix A. In order to perform these inspections, the trained contractor would have to be a: ▪licensed Professional Engineer, ▪Certified Professional in Erosion and Sediment Control (CPESC), ▪New York State Erosion and Sediment Control Certificate Program holder ▪Registered Landscape Architect, or ▪someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity]. 1. A qualified inspector shall conduct site inspections for all construction activities identified in Tables 1 and 2 of Appendix B, with the exception of: a. the construction of a single family residential subdivision with 25% or less impervious cover at total site build-out that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres and is not located 25 (Part IV.C.1.a) in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E; b. the construction of a single family home that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres and is not located in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E; c. construction on agricultural property that involves a soil disturbance of one (1) or more acres of land but less than five (5) acres; and d. construction activities located in the watersheds identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. 2. Unless otherwise notified by the Department, the qualified inspector shall conduct site inspections in accordance with the following timetable: a. For construction sites where soil disturbance activities are on-going, the qualified inspector shall conduct a site inspection at least once every seven (7) calendar days. b. For construction sites where soil disturbance activities are on-going and the owner or operator has received authorization in accordance with Part II.D.3 to disturb greater than five (5) acres of soil at any one time, the qualified inspector shall conduct at least two (2) site inspections every seven (7) calendar days. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. c. For construction sites where soil disturbance activities have been temporarily suspended (e.g. winter shutdown) and temporary stabilization measures have been applied to all disturbed areas, the qualified inspector shall conduct a site inspection at least once every thirty (30) calendar days. The owner or operator shall notify the DOW Water (SPDES) Program contact at the Regional Office (see contact information in Appendix F) or, in areas under the jurisdiction of a regulated, traditional land use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity) in writing prior to reducing the frequency of inspections. 26 (Part IV.C.2.d) d. For construction sites where soil disturbance activities have been shut down with partial project completion, the qualified inspector can stop conducting inspections if all areas disturbed as of the project shutdown date have achieved final stabilization and all post-construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational. The owner or operator shall notify the DOW Water (SPDES) Program contact at the Regional Office (see contact information in Appendix F) or, in areas under the jurisdiction of a regulated, traditional land use control MS4, the regulated, traditional land use control MS4 (provided the regulated, traditional land use control MS4 is not the owner or operator of the construction activity) in writing prior to the shutdown. If soil disturbance activities are not resumed within 2 years from the date of shutdown, the owner or operator shall have the qualified inspector perform a final inspection and certify that all disturbed areas have achieved final stabilization, and all temporary, structural erosion and sediment control measures have been removed; and that all post-construction stormwater management practices have been constructed in conformance with the SWPPP by signing the “Final Stabilization” and “Post-Construction Stormwater Management Practice” certification statements on the NOT. The owner or operator shall then submit the completed NOT form to the address in Part II.B.1 of this permit. e. For construction sites that directly discharge to one of the 303(d) segments listed in Appendix E or is located in one of the watersheds listed in Appendix C, the qualified inspector shall conduct at least two (2) site inspections every seven (7) calendar days. The two (2) inspections shall be separated by a minimum of two (2) full calendar days. 3. At a minimum, the qualified inspector shall inspect all erosion and sediment control practices and pollution prevention measures to ensure integrity and effectiveness, all post-construction stormwater management practices under construction to ensure that they are constructed in conformance with the SWPPP, all areas of disturbance that have not achieved final stabilization, all points of discharge to natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction site, and all points of discharge from the construction site. 4. The qualified inspector shall prepare an inspection report subsequent to each and every inspection. At a minimum, the inspection report shall includ e and/or address the following: 27 (Part IV.C.4.a) a. Date and time of inspection; b. Name and title of person(s) performing inspection; c. A description of the weather and soil conditions (e.g. dry, wet, saturated) at the time of the inspection; d. A description of the condition of the runoff at all points of discharge from the construction site. This shall include identification of any discharges of sediment from the construction site. Include discharges from conveyance systems (i.e. pipes, culverts, ditches, etc.) and overland flow; e. A description of the condition of all natural surface waterbodies located within, or immediately adjacent to, the property boundaries of the construction site which receive runoff from disturbed areas. This shall include identification of any discharges of sediment to the surface waterbody; f. Identification of all erosion and sediment control practices and pollution prevention measures that need repair or maintenance; g. Identification of all erosion and sediment control practices and pollution prevention measures that were not installed properly or are not functioning as designed and need to be reinstalled or replaced; h. Description and sketch of areas with active soil disturbance activity, areas that have been disturbed but are inactive at the time of the inspection, and areas that have been stabilized (temporary and/or final) since the last inspection; i. Current phase of construction of all post-construction stormwater management practices and identification of all construction that is not in conformance with the SWPPP and technical standards; j. Corrective action(s) that must be taken to install, repair, replace or maintain erosion and sediment control practices and pollution prevention measures; and to correct deficiencies identified with the construction of the post- construction stormwater management practice(s); k. Identification and status of all corrective actions that were required by previous inspection; and 28 (Part IV.C.4.l) l. Digital photographs, with date stamp, that clearly show the condition of all practices that have been identified as needing corrective actions. The qualified inspector shall attach paper color copies of the digital photographs to the inspection report being maintained onsite within seven (7) calendar days of the date of the inspection. The qualified inspector shall also take digital photographs, with date stamp, that clearly show the condition of the practice(s) after the corrective action has been completed. The qualified inspector shall attach paper color copies of the digital photographs to the inspection report that documents the completion of the corrective action work within seven (7) calendar days of that inspection. 5. Within one business day of the completion of an inspection, the qualified inspector shall notify the owner or operator and appropriate contractor or subcontractor identified in Part III.A.6. of this permit of any corrective actions that need to be taken. The contractor or subcontractor shall begin implementing the corrective actions within one business day of this notification and shall complete the corrective actions in a reasonable time frame. 6. All inspection reports shall be signed by the qualified inspector. Pursuant to Part II.D.2. of this permit, the inspection reports shall be maintained on site with the SWPPP. Part V. TERMINATION OF PERMIT COVERAGE A. Termination of Permit Coverage 1. An owner or operator that is eligible to terminate coverage under this permit must submit a completed NOT form to the address in Part II.B.1 of this permit. The NOT form shall be one which is associated with this permit, signed in accordance with Part VII.H of this permit. 2. An owner or operator may terminate coverage when one or more the following conditions have been met: a. Total project completion -All construction activity identified in the SWPPP has been completed; and all areas of disturbance have achieved final stabilization; and all temporary, structural erosion and sediment control measures have been removed; and all post-construction stormwater management practices have been constructed in conformance with the SWPPP and are operational; 29 (Part V.A.2.b) b. Planned shutdown with partial project completion -All soil disturbance activities have ceased; and all areas disturbed as of the project shutdown date have achieved final stabilization; and all temporary, structural erosion and sediment control measures have been removed; and all post- construction stormwater management practices required for the completed portion of the project have been constructed in conformance with the SWPPP and are operational; c. A new owner or operator has obtained coverage under this permit in accordance with Part II.F. of this permit. d. The owner or operator obtains coverage under an alternative SPDES general permit or an individual SPDES permit. 3. For construction activities meeting subdivision 2a. or 2b. of this Part, the owner or operator shall have the qualified inspector perform a final site inspection prior to submitting the NOT. The qualified inspector shall, by signing the “Final Stabilization” and “Post-Construction Stormwater Management Practice certification statements on the NOT, certify that all the requirements in Part V.A.2.a. or b. of this permit have been achieved. 4. For construction activities that are subject to the requirements of a regulated, traditional land use control MS4 and meet subdivision 2a. or 2b. of this Part, the owner or operator shall have the regulated, traditional land use control MS4 sign the “MS4 Acceptance” statement on the NOT in accordance with the requirements in Part VII.H. of this permit. The regulated, traditional land use control MS4 official, by signing this statement, has determined that it is acceptable for the owner or operator to submit the NOT in accordance with the requirements of this Part. The regulated, traditional land use control MS4 can make this determination by performing a final site inspection themselves or by accepting the qualified inspector’s final site inspection certification(s) required in Part V.A.3. of this permit. 5. For construction activities that require post-construction stormwater management practices and meet subdivision 2a. of this Part, the owner or operator must, prior to submitting the NOT, ensure one of the following: a. the post-construction stormwater management practice(s) and any right-of- way(s) needed to maintain such practice(s) have been deeded to the municipality in which the practice(s) is located, 30 (Part V.A.5.b) b. an executed maintenance agreement is in place with the municipality that will maintain the post-construction stormwater management practice(s), c. for post-construction stormwater management practices that are privately owned, the owner or operator has a mechanism in place that requires operation and maintenance of the practice(s) in accordance with the operation and maintenance plan, such as a deed covenant in the owner or operator’s deed of record, d. for post-construction stormwater management practices that are owned by a public or private institution (e.g. school, university, hospital), government agency or authority, or public utility; the owner or operator has policy and procedures in place that ensures operation and maintenance of the practices in accordance with the operation and maintenance plan. Part VI. REPORTING AND RETENTION RECORDS A. Record Retention The owner or operator shall retain a copy of the NOI, NOI Acknowledgment Letter, SWPPP, MS4 SWPPP Acceptance form and any inspection reports that were prepared in conjunction with this permit for a period of at least five (5) years from the date that the Department receives a complete NOT sub mitted in accordance with Part V. of this general permit. B. Addresses With the exception of the NOI, NOT, and MS4 SWPPP Acceptance form (which must be submitted to the address referenced in Part II.B.1 of this permit), all written correspondence requested by the Department, including individual permit applications, shall be sent to the address of the appropriate DOW Water (SPDES) Program contact at the Regional Office listed in Appendix F. Part VII. STANDARD PERMIT CONDITIONS A. Duty to Comply The owner or operator must comply with all conditions of this permit. All contractors and subcontractors associated with the project must comply with the terms of the SWPPP. Any non-compliance with this permit constitutes a violation of the Clean Water 31 (Part VII.A) Act (CWA) and the ECL and is grounds for an enforcement action against the owner or operator and/or the contractor/subcontractor; permit revocation, suspension or modification; or denial of a permit renewal application. Upon a finding of significant non - compliance with this permit or the applicable SWPPP, the Department may order an immediate stop to all construction activity at the site until the non-compliance is remedied. The stop work order shall be in writing, shall describe the non -compliance in detail, and shall be sent to the owner or operator. If any human remains or archaeological remains are encountered during excavation, the owner or operator must immediately cease, or cause to cease, all construction activity in the area of the remains and notify the appropriate Reg ional Water Engineer (RWE). Construction activity shall not resume until written permission to do so has been received from the RWE. B. Continuation of the Expired General Permit This permit expires five (5) years from the effective date. If a new general permit is not issued prior to the expiration of this general permit, an owner or operator with coverage under this permit may continue to operate and discharge in accordance with the terms and conditions of this general permit, if it is extended pursuant to the State Administrative Procedure Act and 6 NYCRR Part 621, until a new general permit is issued. C. Enforcement Failure of the owner or operator, its contractors, subcontractors, agents and/or assigns to strictly adhere to any of the permit requirements contained herein shall constitute a violation of this permit. There are substantial criminal, civil, and administrative penalties associated with violating the provisions of this permit. Fines of up to $37,500 per day for each violation and imprisonment for up to fifteen (15) years may be assessed depending upon the nature and degree of the offense. D. Need to Halt or Reduce Activity Not a Defense It shall not be a defense for an owner or operator in an enforcement action that it would have been necessary to halt or reduce the construction activity in order to maintain compliance with the conditions of this permit. 32 (Part VII.E) E. Duty to Mitigate The owner or operator and its contractors and subcontractors shall take all reasonable steps to minimize or prevent any discharge in violation of this permit which has a reasonable likelihood of adversely affecting human health or the environment. F. Duty to Provide Information The owner or operator shall furnish to the Department, within a reasonable specified time period of a written request, all documentation necessary to demonstrate eligibility and any information to determine compliance with this permit or to determine whether cause exists for modifying or revoking this permit, or suspending or denying coverage under this permit, in accordance with the terms and conditions of this permit. The NOI, SWPPP and inspection reports required by this permit are public documents that the owner or operator must make available for review and copying by any person within five (5) business days of the owner or operator receiving a written request by any such person to review these documents. Copying of documents will be done at the requester’s expense. G. Other Information When the owner or operator becomes aware that they failed to submit any relevant facts, or submitted incorrect information in the NOI or in any of the documents required by this permit , or have made substantive revisions to the SWPPP (e.g. th e scope of the project changes significantly, the type of post-construction stormwater management practice(s) changes, there is a reduction in the sizing of the post-construction stormwater management practice, or there is an increase in the disturbance ar ea or impervious area), which were not reflected in the original NOI submitted to the Department, they shall promptly submit such facts or information to the Department using the contact information in Part II.A. of this permit. Failure of the owner or operator to correct or supplement any relevant facts within five (5) business days of becoming aware of the deficiency shall constitute a violation of this permit. H. Signatory Requirements 1. All NOIs and NOTs shall be signed as follows: a. For a corporation these forms shall be signed by a responsible corporate officer. For the purpose of this section, a responsible corporate officer means: 33 (Part VII.H.1.a) (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision-making functions for the corporation; or (ii) the manager of one or more manufacturing, production or operating facilities, provided the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; b. For a partnership or sole proprietorship these forms shall be signed by a general partner or the proprietor, respectively; or c. For a municipality, State, Federal, or other public agency these forms shall be signed by either a principal executive officer or ranking elected official. For purposes of this section, a principal executive officer of a Federal agency includes: (i) the chief executive officer of the agency, or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g., Regional Administrators of EPA). 2. The SWPPP and other information requested by the Department shall be signed by a person described in Part VII.H.1. of this permit or by a duly authorized representative of that person. A person is a duly authorized representative only if: a. The authorization is made in writing by a person described in Part VII.H.1. of this permit; b. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator of a well or a well field, 34 (Part VII.H.2.b) superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position) and, c. The written authorization shall include the name, title and signature of the authorized representative and be attached to the SWPPP. 3. All inspection reports shall be signed by the qualified inspector that performs the inspection. 4. The MS4 SWPPP Acceptance form shall be signed by the principal executive officer or ranking elected official from the regulated, traditional land use control MS4, or by a duly authorized representative of that person. It shall constitute a permit violation if an incorrect and/or improper signatory authorizes any required forms, SWPPP and/or inspection reports. I. Property Rights The issuance of this permit does not convey any property rights of any sort, nor any exclusive privileges, nor does it authorize any injury to private property nor any invasion of personal rights, nor any infringement of Federal, State or local laws or reg ulations. Owners or operators must obtain any applicable conveyances, easements, licenses and/or access to real property prior to commencing construction activity. J. Severability The provisions of this permit are severable, and if any provision of this permit, or the application of any provision of this permit to any circumstance, is held invalid, the application of such provision to other circumstances, and the remainder of this permit shall not be affected thereby. K. Requirement to Obtain Coverage Under an Alternative Permit 1. The Department may require any owner or operator authorized by this permit to apply for and/or obtain either an individual SPDES permit or another SPDES general permit. When the Department requires any discharger authorized by a general permit to apply for an individual SPDES permit, it shall notify the discharger in writing that a permit application is required. This notice shall 35 (Part VII.K.1) include a brief statement of the reasons for this decision, an application form, a statement setting a time frame for the owner or operator to file the application for an individual SPDES permit, and a deadline, not sooner than 180 days from owner or operator receipt of the notification letter, whereby the authorization to discharge under this general permit shall be terminated. Applications must be submitted to the appropriate Permit Administrator at the Regional Office. The Department may grant additional time upon demonstration, to the satisfaction of the Department, that additional time to apply for an alternative authorization is necessary or where the Department has not provided a permit determination in accordance with Part 621 of this Title. 2. When an individual SPDES permit is issued to a discharger authorized to discharge under a general SPDES permit for the same discharge(s), the general permit authorization for outfalls authorized under the individual SPDES permit is automatically terminated on the effective date of the individual permit unless termination is earlier in accordance with 6 NYCRR Part 750. L. Proper Operation and Maintenance The owner or operator shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the owner or operator to achieve compliance with the conditions of this permit and with the requirements of the SW PPP. M. Inspection and Entry The owner or operator shall allow an authorized representative of the Department, EPA, applicable county health department, or, in the case of a construction site which discharges through an MS4, an authorized representative of the MS4 receiving the discharge, upon the presentation of credentials and other documents as may be required by law, to: 1. Enter upon the owner’s or operator's premises where a regulated facility or activity is located or conducted or where records must be k ept under the conditions of this permit; 2. Have access to and copy at reasonable times, any records that must be kept under the conditions of this permit; and 36 (Part VII.M.3) 3. Inspect at reasonable times any facilities or equipment (including monitoring and control equipment), practices or operations regulated or required by this permit. 4. Sample or monitor at reasonable times, for purposes of assuring permit compliance or as otherwise authorized by the Act or ECL, any substances or parameters at any location. N. Permit Actions This permit may, at any time, be modified, suspended, revoked, or renewed by the Department in accordance with 6 NYCRR Part 621. The filing of a request by the owner or operator for a permit modification, revocation and reissuance, termination, a notification of planned changes or anticipated noncompliance does not limit, diminish and/or stay compliance with any terms of this permit. O. Definitions Definitions of key terms are included in Appendix A of this permit. P. Re-Opener Clause 1. If there is evidence indicating potential or realized impacts on water quality due to any stormwater discharge associated with construction activity covered by this permit, the owner or operator of such discharge may be required to obtain an individual permit or alternative general permit in accordance with Part VII.K. of this permit or the permit may be modified to include different limitations and/or requirements. 2. Any Department initiated permit modification, suspension or revocation will be conducted in accordance with 6 NYCRR Part 621, 6 NYCRR 750 -1.18, and 6 NYCRR 750-1.20. Q. Penalties for Falsification of Forms and Reports In accordance with 6NYCRR Part 750-2.4 and 750-2.5, any person who knowingly makes any false material statement, representation, or certification in any application, record, report or other document filed or required to be maintained under this permit, including reports of compliance or noncompliance shall, upon conviction, be punished in accordance with ECL §71-1933 and or Articles 175 and 210 of the New York State Penal Law. 37 (Part VII.R) R. Other Permits Nothing in this permit relieves the owner or operator from a requirement to obtain any other permits required by law. 38 APPENDIX A – Acronyms and Definitions Acronyms APO – Agency Preservation Officer BMP – Best Management Practice CPESC – Certified Professional in Erosion and Sediment Control Cpv – Channel Protection Volume CWA – Clean Water Act (or the Federal Water Pollution Control Act, 33 U.S.C. §1251 et seq) DOW – Division of Water EAF – Environmental Assessment Form ECL -Environmental Conservation Law EPA – U. S. Environmental Protection Agency HSG – Hydrologic Soil Group MS4 – Municipal Separate Storm Sewer System NOI – Notice of Intent NOT – Notice of Termination NPDES – National Pollutant Discharge Elimination System OPRHP – Office of Parks, Recreation and Historic Places Qf – Extreme Flood Qp – Overbank Flood RRv – Runoff Reduction Volume RWE – Regional Water Engineer SEQR – State Environmental Quality Review SEQRA -State Environmental Quality Review Act SHPA – State Historic Preservation Act SPDES – State Pollutant Discharge Elimination System SWPPP – Stormwater Pollution Prevention Plan TMDL – Total Maximum Daily Load UPA – Uniform Procedures Act USDA – United States Department of Agriculture WQv – Water Quality Volume 39 Appendix A Definitions All definitions in this section are solely for the purposes of this permit. Agricultural Building – a structure designed and constructed to house farm implements, hay, grain, poultry, livestock or other horticultural products; excluding any structure designed, constructed or used, in whole or in part, for human habitation, as a place of employment where agricultural products are processed, treated or packaged, or as a place used by the public. Agricultural Property –means the land for construction of a barn, agricultural building, silo, stockyard, pen or other structural practices identified in Table II in the “Agricultural Management Practices Catalog for Nonpoint Source Pollution in New York State” prepared by the Department in cooperation with agencies of New York Nonpoint Source Coordinating Committee (dated June 2007). Alter Hydrology from Pre to Post-Development Conditions -means the post- development peak flow rate(s) has increased by more than 5% of the pre-developed condition for the design storm of interest (e.g. 10 yr and 100 yr). Combined Sewer -means a sewer that is designed to collect and convey both “sewage” and “stormwater”. Commence (Commencement of) Construction Activities -means the initial disturbance of soils associated with clearing, grading or excavation activit ies; or other construction related activities that disturb or expose soils such as demolition, stockpiling of fill material, and the initial installation of erosion and sediment control practices required in the SWPPP. See definition for “Construction Activity(ies)” also. Construction Activity(ies) -means any clearing, grading, excavation, filling, demolition or stockpiling activities that result in soil disturbance. Clearing activities can include, but are not limited to, logging equipment operation, the cutting and skidding of trees, stump removal and/or brush root removal. Construction activity does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility. Construction Site – means the land area where construction activity(ies) will occur. See definition for “Commence (Commencement of) Construction Activities” and “Larger Common Plan of Development or Sale” also. Dewatering – means the act of draining rainwater and/or groundwater from building foundations, vaults or excavations/trenches. Direct Discharge (to a specific surface waterbody) -means that runoff flows from a construction site by overland flow and the first point of discharge is the specific surface waterbody, or runoff flows from a construction site to a separate storm sewer system 40 Appendix A and the first point of discharge from the separate storm sewer system is the specific surface waterbody. Discharge(s) -means any addition of any pollutant to waters of the State through an outlet or point source. Embankment –means an earthen or rock slope that supports a road/highway. Endangered or Threatened Species – see 6 NYCRR Part 182 of the Department’s rules and regulations for definition of terms and requirements. Environmental Conservation Law (ECL) -means chapter 43-B of the Consolidated Laws of the State of New York, entitled the Environmental Conservation Law. Equivalent (Equivalence) – means that the practice or measure meets all the performance, longevity, maintenance, and safety objectives of the technical standard and will provide an equal or greater degree of water quality protection. Final Stabilization -means that all soil disturbance activities have ceased and a uniform, perennial vegetative cover with a density of eighty (80) percent over the entire pervious surface has been established; or other equivalent stabilization measures, such as permanent landscape mulches, rock rip-rap or washed/crushed stone have been applied on all disturbed areas that are not covered by permanent structures, concrete or pavement. General SPDES permit -means a SPDES permit issued pursuant to 6 NYCRR Part 750-1.21 and Section 70-0117 of the ECL authorizing a category of discharges. Groundwater(s) -means waters in the saturated zone. The saturated zone is a subsurface zone in which all the interstices are filled with water under pressure greater than that of the atmosphere. Although the zone may contain gas-filled interstices or interstices filled with fluids other than water, it is still considered saturated. Historic Property – means any building, structure, site, object or district that is listed on the State or National Registers of Historic Places or is determined to be eligible for listing on the State or National Registers of Historic Places. Impervious Area (Cover) -means all impermeable surfaces that cannot effectively infiltrate rainfall. This includes paved, concrete and gravel surfaces (i.e. parking lots, driveways, roads, runways and sidewalks); building rooftops and miscellaneous impermeable structures such as patios, pools, and sheds. Infeasible – means not technologically possible, or not economically practicable and achievable in light of best industry practices. 41 Appendix A Larger Common Plan of Development or Sale -means a contiguous area where multiple separate and distinct construction activities are occurring, or will occur, under one plan. The term “plan” in “larger common plan of development or sale” is broadly defined as any announcement or piece of documentation (including a sign, public notice or hearing, marketing plan, advertisement, drawing, permit application, State Environmental Quality Review Act (SEQRA) environmental assessment form or other documents, zoning request, computer design, etc.) or physical demarcation (including boundary signs, lot stakes, surveyor markings, etc.) indicating that construction activities may occur on a specific plot. For discrete construction projects that are located within a larger common plan of development or sale that are at least 1/4 mile apart, each project can be treated as a separate plan of development or sale provided any interconnecting road, pipeline or utility project that is part of the same “common plan” is not concurrently being disturbed. Minimize – means reduce and/or eliminate to the extent achievable using control measures (including best management practices) that are technologically available and economically practicable and achievable in light of best industry practices. Municipal Separate Storm Sewer (MS4) -a conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains): (i) Owned or operated by a State, city, town, borough, county, parish, district, association, or other public body (created by or pursuant to State law) having jurisdiction over disposal of sewage, industrial wastes, stormwater, or other wastes, including special districts under State law such as a sewer district, flood control district or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, or a designated and approved management agency under section 208 of the CWA that discharges to surface waters of the State; (ii) Designed or used for collecting or conveying stormwater; (iii) Which is not a combined sewer; and (iv) Which is not part of a Publicly Owned Treatment Works (POTW) as defined at 40 CFR 122.2. National Pollutant Discharge Elimination System (NPDES) -means the national system for the issuance of wastewater and stormwater permits under the Federal Water Pollution Control Act (Clean Water Act). Natural Buffer –means an undisturbed area with natural cover running along a surface water (e.g. wetland, stream, river, lake, etc.). New Development – means any land disturbance that does not meet the definition of Redevelopment Activity included in this appendix. 42 Appendix A New York State Erosion and Sediment Control Certificate Program – a certificate program that establishes and maintains a process to identify and recognize individuals who are capable of developing, designing, inspecting and maintaining erosion and sediment control plans on projects that disturb soils in New York State. The certificate program is administered by the New York State Conservation District Employees Association. NOI Acknowledgment Letter -means the letter that the Department sends to an owner or operator to acknowledge the Department’s receipt and acceptance of a complete Notice of Intent. This letter documents the owner’s or operator’s authorization to discharge in accordance with the general permit for stormwater discharges from construction activity. Nonpoint Source -means any source of water pollution or pollutants which is not a discrete conveyance or point source permitted pursuant to Title 7 or 8 of Article 17 of the Environmental Conservation Law (see ECL Section 17-1403). Overbank –means flow events that exceed the capacity of the stream channel and spill out into the adjacent floodplain. Owner or Operator -means the person, persons or legal entity which owns or leases the property on which the construction activity is occurring; an entity that has operational control over the construction plans and specifications, including the ability to make modifications to the plans and specifications; and/or an entity that has day-to-day operational control of those activities at a project that are necessary to ensure compliance with the permit conditions. Performance Criteria – means the design criteria listed under the “Required Elements” sections in Chapters 5, 6 and 10 of the technical standard, New York State Stormwater Management Design Manual, dated January 2015. It does not include the Sizing Criteria (i.e. WQv, RRv, Cpv, Qp and Qf ) in Part I.C.2. of the permit. Point Source -means any discernible, confined and discrete conveyance, including but not limited to any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding operation, vessel or other floating craft, or landfill leachate collection system from which pollutants are or may be discharged. Pollutant -means dredged spoil, filter backwash, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand and industrial, municipal, agricultural waste and ballast discharged into water; which may cause or might reasonably be expected to cause pollution of the waters of the state in contravention of the standards or guidance values adopted as provided in 6 NYCRR Parts 700 et seq . 43 Appendix A Qualified Inspector -means a person that is knowledgeable in the principles and practices of erosion and sediment control, such as a licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, New York State Erosion and Sediment Control Certificate Program holder or other Department endorsed individual(s). It can also mean someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided that person has training in the principles and practices of erosion and sediment control. Training in the principles and practices of erosion and sediment control means that the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect has received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department en dorsed entity. After receiving the initial training, the individual working under the direct supervision of the licensed Professional Engineer or Registered Landscape Architect shall receive four (4) hours of training every three (3) years. It can also mean a person that meets the Qualified Professional qualifications in addition to the Qualified Inspector qualifications. Note: Inspections of any post-construction stormwater management practices that include structural components, such as a dam for an impoundment, shall be performed by a licensed Professional Engineer. Qualified Professional -means a person that is knowledgeable in the principles and practices of stormwater management and treatment, such as a licensed Professional Engineer, Registered Landscape Architect or other Department endorsed individual(s). Individuals preparing SWPPPs that require the post-construction stormwater management practice component must have an understanding of the principles of hydrology, water quality management practice design, water quantity control design, and, in many cases, the principles of hydraulics. All components of the SWPPP that involve the practice of engineering, as defined by the NYS Education Law (see Article 145), shall be prepared by, or under the direct supervision of, a professional engineer licensed to practice in the State of New York. Redevelopment Activity(ies) – means the disturbance and reconstruction of existing impervious area, including impervious areas that were removed from a project site within five (5) years of preliminary project plan submission to the local government (i.e. site plan, subdivision, etc.). Regulated, Traditional Land Use Control MS4 -means a city, town or village with land use control authority that is authorized to discharge under New York State DEC’s 44 Appendix A SPDES General Permit For Stormwater Discharges from Municipal Separate Stormwater Sewer Systems (MS4s) or the City of New York’s Individual SPDES Permit for their Municipal Separate Storm Sewer Systems (NY-0287890). Routine Maintenance Activity -means construction activity that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of a facility, including, but not limited to: ▪Re-grading of gravel roads or parking lots, ▪Cleaning and shaping of existing roadside ditches and culverts that maintains the approximate original line and grade, and hydraulic capacity of the ditch, ▪Cleaning and shaping of existing roadside ditches that does not maintain the approximate original grade, hydraulic capacity and purpose of the ditch if the changes to the line and grade, hydraulic capacity or purpose of the ditch are installed to improve water quality and quantity controls (e.g. installing grass lined ditch), ▪Placement of aggregate shoulder backing that stabilizes the transition between the road shoulder and the ditch or embankment, ▪Full depth milling and filling of existing asphalt pavements, replacement of concrete pavement slabs, and similar work that does not expose soil or disturb the bottom six (6) inches of subbase material, ▪Long-term use of equipment storage areas at or near highway maintenance facilities, ▪Removal of sediment from the edge of the highway to restore a previously existing sheet-flow drainage connection from the highway surface to the highway ditch or embankment, ▪Existing use of Canal Corp owned upland disposal sites for the canal, and ▪Replacement of curbs, gutters, sidewalks and guide rail posts. Site limitations – means site conditions that prevent the use of an infiltration technique and or infiltration of the total WQv. Typical site limitations include: seasonal high groundwater, shallow depth to bedrock, and soils with an infiltration rate less than 0.5 inches/hour. The existence of site limitations shall be confirmed and documented using actual field testing (i.e. test pits, soil borings, and infiltration test) or using information from the most current United States Department of Agriculture (USDA) Soil Survey for the County where the project is located. Sizing Criteria – means the criteria included in Part I.C.2 of the permit that are used to size post-construction stormwater management control practices. The criteria include; Water Quality Volume (WQv), Runoff Reduction Volume (RRv), Channel Protection Volume (Cpv), Overbank Flood (Qp), and Extreme Flood (Qf). State Pollutant Discharge Elimination System (SPDES) -means the system established pursuant to Article 17 of the ECL and 6 NYCRR Part 750 for issuance of permits authorizing discharges to the waters of the state. 45 Appendix A Steep Slope – means land area designated on the current United States Department of Agriculture (“USDA”) Soil Survey as Soil Slope Phase “D”, (provided the map unit name is inclusive of slopes greater than 25%) , or Soil Slope Phase E or F, (regardless of the map unit name), or a combination of the three designations. Streambank – as used in this permit, means the terrain alongside the bed of a creek or stream. The bank consists of the sides of the channel, between which the flow is confined. Stormwater Pollution Prevention Plan (SWPPP) – means a project specific report, including construction drawings, that among other things: describes the construction activity(ies), identifies the potential sources of pollution at the construction site; describes and shows the stormwater controls that will be used to control the pollutants (i.e. erosion and sediment controls; for many projects, includes post-construction stormwater management controls); and identifies procedures the owner or operator will implement to comply with the terms and conditions of the permit. See Part III of the permit for a complete description of the information that must be included in the SWPPP. Surface Waters of the State -shall be construed to include lakes, bays, sounds, ponds, impounding reservoirs, springs, rivers, streams, creeks, estuaries, marshes, inlets, canals, the Atlantic ocean within the territorial seas of the state of New York and all other bodies of surface water, natural or artificial, inland or coastal, fresh or salt, public or private (except those private waters that do not combine or effect a junction with natural surface waters), which are wholly or partially within or bordering the state or within its jurisdiction. Waters of the state are further defined in 6 NYCRR Parts 800 to 941. Temporarily Ceased – means that an existing disturbed area will not be disturbed again within 14 calendar days of the previous soil disturbance. Temporary Stabilization -means that exposed soil has been covered with material(s) as set forth in the technical standard, New York Standards and Specifications for Erosion and Sediment Control, to prevent the exposed soil from eroding. The materials can include, but are not limited to, mulch, seed and mulch, and erosion control mats (e.g. jute twisted yarn, excelsior wood fiber mats). Total Maximum Daily Loads (TMDLs) -A TMDL is the sum of the allowable loads of a single pollutant from all contributing point and nonpoint sources. It is a calculation of the maximum amount of a pollutant that a waterbody can receive on a daily basis and still meet water quality standards, and an allocation of that amount to the pollutant's sources. A TMDL stipulates wasteload allocations (WLAs) for point source discharges, load allocations (LAs) for nonpoint sources, and a margin of safety (MOS). Trained Contractor -means an employee from the contracting (construction) company, identified in Part III.A.6., that has received four (4) hours of Department endorsed 46 Appendix A training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity. After receiving the initial training, the trained contractor shall receive four (4) hours of training every three (3) years. It can also mean an employee from the contracting (construction) company, identified in Part III.A.6., that meets the qualified inspector qualifications (e.g. licensed Professional Engineer, Certified Professional in Erosion and Sediment Control (CPESC), Registered Landscape Architect, New York State Erosion and Sediment Control Certificate Program holder, or someone working under the direct supervision of, and at the same company as, the licensed Professional Engineer or Registered Landscape Architect, provided they have received four (4) hours of Department endorsed training in proper erosion and sediment control principles from a Soil and Water Conservation District, or other Department endorsed entity). The trained contractor is responsible for the day to day implementation of the SWPPP. Uniform Procedures Act (UPA) Permit -means a permit required under 6 NYCRR Part 621 of the Environmental Conservation Law (ECL), Article 70. Water Quality Standard -means such measures of purity or quality for any waters in relation to their reasonable and necessary use as promulgated in 6 NYCRR Part 700 et seq. 47 APPENDIX B – Required SWPPP Components by Project Type Table 1 Construction Activities that Require the Preparation of a SWPPP That Only Includes Erosion and Sediment Controls The following construction activities that involve soil disturbances of one (1) or more acres of land, but less than five (5) acres: • Single family home not located in one of the watersheds listed in Appendix C or not directly discharging to one of the 303(d) segments listed in Appendix E • Single family residential subdivisions with 25% or less impervious cover at total site build-out and not located in one of the watersheds listed in Appendix C and not directly discharging to one of the 303(d) segments listed in Appendix E • Construction of a barn or other agricultural building, silo, stock yard or pen. The following construction activities that involve soil disturbances between five thousand (5000) square feet and one (1) acre of land: All construction activities located in the watersheds identified in Appendix D that involve soil disturbances between five thousand (5,000) square feet and one (1) acre of land. The following construction activities that involve soil disturbances of one (1) or more acres of land: • Installation of underground, linear utilities; such as gas lines, fiber -optic cable, cable TV, electric, telephone, sewer mains, and water mains • Environmental enhancement projects, such as wetland mitigation projects, stormwater retrofits and stream restoration projects • Pond construction • Linear bike paths running through areas with vegetative cover, including bike paths surfaced with an impervious cover • Cross-country ski trails and walking/hiking trails • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that are not part of residential, commercial or institutional development; • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that include incidental shoulder or curb work along an existing highway to support construction of the sidewalk, bike path or walking path. • Slope stabilization projects • Slope flattening that changes the grade of the site, but does not significantly change the runoff characteristics 48 Appendix B Table 1 (Continued) CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT ONLY INCLUDES EROSION AND SEDIMENT CONTROLS The following construction activities that involve soil disturbances of one (1) or more acres of land: • Spoil areas that will be covered with vegetation • Vegetated open space projects (i.e. recreational parks, lawns, meadows, fields, downhill ski trails) excluding projects that alter hydrology from pre to post development conditions, • Athletic fields (natural grass) that do not include the construction or reconstruction of impervious area and do not alter hydrology from pre to post development conditions • Demolition project where vegetation will be established, and no redevelopment is planned • Overhead electric transmission line project that does not include the construction of permanent access roads or parking areas surfaced with impervious cover • Structural practices as identified in Table II in the “Agricultural Management Practices Catalog f or Nonpoint Source Pollution in New York State”, excluding projects that involve soil disturbances of greater than five acres and construction activities that include the construction or reconstruction of impervious area • Temporary access roads, median crossovers, detour roads, lanes, or other temporary impervious areas that will be restored to pre-construction conditions once the construction activit y is complete 49 Appendix B Table 2 CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT INCLUDES POST-CONSTRUCTION STORMWATER MANAGEMENT PRACTICES The following construction activities that involve soil disturbances of one (1) or more acres of land: • Single family home located in one of the watersheds listed in Appendix C or directly discharging to one of the 303(d) segments listed in Appendix E • Single family home that disturbs five (5) or more acres of land • Single family residential subdivisions located in one of the watersheds listed in Appendix C or directly discharging to one of the 303(d) segments listed in Appendix E • Single family residential subdivisions that involve soil disturbances of between one (1) and five (5) acres of land with greater than 25% impervious cover at total site build-out • Single family residential subdivisions that involve soil disturbances of five (5) or more acres of land, and single family residential subdivisions that involve soil disturbances of less than five (5) acres that are part of a larger common plan of development or sale that will ultimately disturb five or more acres of land • Multi-family residential developments; includes duplexes, townhomes, condominiums, senior housing complexes, apartment complexes, and mobile home parks • Airports • Amusement parks • Breweries, cideries, and wineries, including establishments constructed on agricultural land • Campgrounds • Cemeteries that include the construction or reconstruction of impervious area (>5% of disturbed area) or alter the hydrology from pre to post development conditions • Commercial developments • Churches and other places of worship • Construction of a barn or other agricultural building (e.g. silo) and structural practices as identified in Table II in the “Agricultural Management Practices Catalog for Nonpoint Source Pollution in New York State” that include the construction or reconstruction of impervious area, excluding projects that involve soil disturbances of less than five acres. • Golf courses • Institutional development; includes hospitals, prisons, schools and colleges • Industrial facilities; includes industrial parks • Landfills • Municipal facilities; includes highway garages, transfer stations, office buildings, POTW’s, water treatment plants, and water storage tanks • Office complexes • Playgrounds that include the construction or reconstruction of impervious area • Sports complexes • Racetracks; includes racetracks with earthen (dirt) surface • Road construction or reconstruction, including roads constructed as part of the construction activities listed in Table 1 50 Appendix B Table 2 (Continued) CONSTRUCTION ACTIVITIES THAT REQUIRE THE PREPARATION OF A SWPPP THAT INCLUDES POST-CONSTRUCTION STORMWATER MANAGEMENT PRACTICES The following construction activities that involve soil disturbances of one (1) or more acres of land: • Parking lot construction or reconstruction, including parking lots constructed as part of the construction activities listed in Table 1 • Athletic fields (natural grass) that include the construction or reconstruction of impervious area (>5% of disturbed area) or alter the hydrology from pre to post development conditions • Athletic fields with artificial turf • Permanent access roads, parking areas, substations, compressor stations and well drilling pads, surfaced with impervious cover, and constructed as part of an over-head electric transmission line project, wind-power project, cell tower project, oil or gas well drilling project, sewer or water main project or other linear utility project • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that are part of a residential, commercial or institutional development • Sidewalk, bike path or walking path projects, surfaced with an impervious cover, that are part of a highway construction or reconstruction project • All other construction activities that include the construction or reconstruction of impervious area or alter the hydrology from pre to post development conditions, and are not listed in Table 1 51 APPENDIX C – Watersheds Requiring Enhanced Phosphorus Removal Watersheds where owners or operators of construction activities identified in Table 2 of Appendix B must prepare a SWPPP that includes post-construction stormwater management practices designed in conformance with the Enhanced Phosphorus Removal Standards included in the technical standard, New York State Stormwater Management Design Manual (“Design Manual”). • Entire New York City Watershed located east of the Hudson River -Figure 1 • Onondaga Lake Watershed -Figure 2 • Greenwood Lake Watershed -Figure 3 • Oscawana Lake Watershed – Figure 4 • Kinderhook Lake Watershed – Figure 5 52 Appendix C Figure 1 -New York City Watershed East of the Hudson 53 Appendix C Figure 2 -Onondaga Lake Watershed 54 Appendix C Figure 3 -Greenwood Lake Watershed 55 Appendix C Figure 4 -Oscawana Lake Watershed 56 Appendix C Figure 5 -Kinderhook Lake Watershed 57 APPENDIX D – Watersheds with Lower Disturbance Threshold Watersheds where owners or operators of construction activities that involve soil disturbances between five thousand (5000) square feet and one (1) acre of land must obtain coverage under this permit. Entire New York City Watershed that is located east of the Hudson River -See Figure 1 in Appendix C 58 APPENDIX E – 303(d) Segments Impaired by Construction Related Pollutant(s) List of 303(d) segments impaired by pollutants related to construction activity (e.g. silt, sediment or nutrients). The list was developed using ”The Final New York State 2016 Section 303(d) List of Impaired Waters Requiring a TMDL/Other Strategy” dated November 2016. Owners or operators of single family home and single family residential subdivisions with 25% or less total impervious cover at total site build-out that involve soil disturbances of one or more acres of land, but less than 5 acres, and directly discharge to one of the listed segments below shall prepare a SWPPP that includes post-construction stormwater management practices designed in conformance with the New York State Stormwater Management Design Manual (“Design Manual”), dated January 2015. COUNTY WATERBODY POLLUTANT Albany Ann Lee (Shakers) Pond, Stump Pond Nutrients Albany Basic Creek Reservoir Nutrients Allegany Amity Lake, Saunders Pond Nutrients Bronx Long Island Sound, Bronx Nutrients Bronx Van Cortlandt Lake Nutrients Broome Fly Pond, Deer Lake, Sky Lake Nutrients Broome Minor Tribs to Lower Susquehanna (north) Nutrients Broome Whitney Point Lake/Reservoir Nutrients Cattaraugus Allegheny River/Reservoir Nutrients Cattaraugus Beaver (Alma) Lake Nutrients Cattaraugus Case Lake Nutrients Cattaraugus Linlyco/Club Pond Nutrients Cayuga Duck Lake Nutrients Cayuga Little Sodus Bay Nutrients Chautauqua Bear Lake Nutrients Chautauqua Chadakoin River and tribs Nutrients Chautauqua Chautauqua Lake, North Nutrients Chautauqua Chautauqua Lake, South Nutrients Chautauqua Findley Lake Nutrients Chautauqua Hulburt/Clymer Pond Nutrients Clinton Great Chazy River, Lower, Main Stem Silt/Sediment Clinton Lake Champlain, Main Lake, Middle Nutrients Clinton Lake Champlain, Main Lake, North Nutrients Columbia Kinderhook Lake Nutrients Columbia Robinson Pond Nutrients Cortland Dean Pond Nutrients 59 303(d) Segments Impaired by Construction Related Pollutant(s) Dutchess Fall Kill and tribs Nutrients Dutchess Hillside Lake Nutrients Dutchess Wappingers Lake Nutrients Dutchess Wappingers Lake Silt/Sediment Erie Beeman Creek and tribs Nutrients Erie Ellicott Creek, Lower, and tribs Silt/Sediment Erie Ellicott Creek, Lower, and tribs Nutrients Erie Green Lake Nutrients Erie Little Sister Creek, Lower, and tribs Nutrients Erie Murder Creek, Lower, and tribs Nutrients Erie Rush Creek and tribs Nutrients Erie Scajaquada Creek, Lower, and tribs Nutrients Erie Scajaquada Creek, Middle, and tribs Nutrients Erie Scajaquada Creek, Upper, and tribs Nutrients Erie South Branch Smoke Cr, Lower, and tribs Silt/Sediment Erie South Branch Smoke Cr, Lower, and tribs Nutrients Essex Lake Champlain, Main Lake, South Nutrients Essex Lake Champlain, South Lake Nutrients Essex Willsboro Bay Nutrients Genesee Bigelow Creek and tribs Nutrients Genesee Black Creek, Middle, and minor tribs Nutrients Genesee Black Creek, Upper, and minor tribs Nutrients Genesee Bowen Brook and tribs Nutrients Genesee LeRoy Reservoir Nutrients Genesee Oak Orchard Cr, Upper, and tribs Nutrients Genesee Tonawanda Creek, Middle, Main Stem Nutrients Greene Schoharie Reservoir Silt/Sediment Greene Sleepy Hollow Lake Silt/Sediment Herkimer Steele Creek tribs Silt/Sediment Herkimer Steele Creek tribs Nutrients Jefferson Moon Lake Nutrients Kings Hendrix Creek Nutrients Kings Prospect Park Lake Nutrients Lewis Mill Creek/South Branch, and tribs Nutrients Livingston Christie Creek and tribs Nutrients Livingston Conesus Lake Nutrients Livingston Mill Creek and minor tribs Silt/Sediment Monroe Black Creek, Lower, and minor tribs Nutrients Monroe Buck Pond Nutrients Monroe Cranberry Pond Nutrients 60 303(d) Segments Impaired by Construction Related Pollutant(s) Monroe Lake Ontario Shoreline, Western Nutrients Monroe Long Pond Nutrients Monroe Mill Creek and tribs Nutrients Monroe Mill Creek/Blue Pond Outlet and tribs Nutrients Monroe Minor Tribs to Irondequoit Bay Nutrients Monroe Rochester Embayment -East Nutrients Monroe Rochester Embayment -West Nutrients Monroe Shipbuilders Creek and tribs Nutrients Monroe Thomas Creek/White Brook and tribs Nutrients Nassau Beaver Lake Nutrients Nassau Camaans Pond Nutrients Nassau East Meadow Brook, Upper, and tribs Silt/Sediment Nassau East Rockaway Channel Nutrients Nassau Grant Park Pond Nutrients Nassau Hempstead Bay Nutrients Nassau Hempstead Lake Nutrients Nassau Hewlett Bay Nutrients Nassau Hog Island Channel Nutrients Nassau Long Island Sound, Nassau County Waters Nutrients Nassau Massapequa Creek and tribs Nutrients Nassau Milburn/Parsonage Creeks, Upp, and tribs Nutrients Nassau Reynolds Channel, west Nutrients Nassau Tidal Tribs to Hempstead Bay Nutrients Nassau Tribs (fresh) to East Bay Nutrients Nassau Tribs (fresh) to East Bay Silt/Sediment Nassau Tribs to Smith/Halls Ponds Nutrients Nassau Woodmere Channel Nutrients New York Harlem Meer Nutrients New York The Lake in Central Park Nutrients Niagara Bergholtz Creek and tribs Nutrients Niagara Hyde Park Lake Nutrients Niagara Lake Ontario Shoreline, Western Nutrients Niagara Lake Ontario Shoreline, Western Nutrients Oneida Ballou, Nail Creeks and tribs Nutrients Onondaga Harbor Brook, Lower, and tribs Nutrients Onondaga Ley Creek and tribs Nutrients Onondaga Minor Tribs to Onondaga Lake Nutrients Onondaga Ninemile Creek, Lower, and tribs Nutrients Onondaga Onondaga Creek, Lower, and tribs Nutrients Onondaga Onondaga Creek, Middle, and tribs Nutrients 61 303(d) Segments Impaired by Construction Related Pollutant(s) Onondaga Onondaga Lake, northern end Nutrients Onondaga Onondaga Lake, southern end Nutrients Ontario Great Brook and minor tribs Silt/Sediment Ontario Great Brook and minor tribs Nutrients Ontario Hemlock Lake Outlet and minor tribs Nutrients Ontario Honeoye Lake Nutrients Orange Greenwood Lake Nutrients Orange Monhagen Brook and tribs Nutrients Orange Orange Lake Nutrients Orleans Lake Ontario Shoreline, Western Nutrients Orleans Lake Ontario Shoreline, Western Nutrients Oswego Lake Neatahwanta Nutrients Oswego Pleasant Lake Nutrients Putnam Bog Brook Reservoir Nutrients Putnam Boyd Corners Reservoir Nutrients Putnam Croton Falls Reservoir Nutrients Putnam Diverting Reservoir Nutrients Putnam East Branch Reservoir Nutrients Putnam Lake Carmel Nutrients Putnam Middle Branch Reservoir Nutrients Putnam Oscawana Lake Nutrients Putnam Palmer Lake Nutrients Putnam West Branch Reservoir Nutrients Queens Bergen Basin Nutrients Queens Flushing Creek/Bay Nutrients Queens Jamaica Bay, Eastern, and tribs (Queens) Nutrients Queens Kissena Lake Nutrients Queens Meadow Lake Nutrients Queens Willow Lake Nutrients Rensselaer Nassau Lake Nutrients Rensselaer Snyders Lake Nutrients Richmond Grasmere Lake/Bradys Pond Nutrients Rockland Congers Lake, Swartout Lake Nutrients Rockland Rockland Lake Nutrients Saratoga Ballston Lake Nutrients Saratoga Dwaas Kill and tribs Silt/Sediment Saratoga Dwaas Kill and tribs Nutrients Saratoga Lake Lonely Nutrients Saratoga Round Lake Nutrients Saratoga Tribs to Lake Lonely Nutrients 62 303(d) Segments Impaired by Construction Related Pollutant(s) Schenectady Collins Lake Nutrients Schenectady Duane Lake Nutrients Schenectady Mariaville Lake Nutrients Schoharie Engleville Pond Nutrients Schoharie Summit Lake Nutrients Seneca Reeder Creek and tribs Nutrients St.Lawrence Black Lake Outlet/Black Lake Nutrients St.Lawrence Fish Creek and minor tribs Nutrients Steuben Smith Pond Nutrients Suffolk Agawam Lake Nutrients Suffolk Big/Little Fresh Ponds Nutrients Suffolk Canaan Lake Silt/Sediment Suffolk Canaan Lake Nutrients Suffolk Flanders Bay, West/Lower Sawmill Creek Nutrients Suffolk Fresh Pond Nutrients Suffolk Great South Bay, East Nutrients Suffolk Great South Bay, Middle Nutrients Suffolk Great South Bay, West Nutrients Suffolk Lake Ronkonkoma Nutrients Suffolk Long Island Sound, Suffolk County, West Nutrients Suffolk Mattituck (Marratooka) Pond Nutrients Suffolk Meetinghouse/Terrys Creeks and tribs Nutrients Suffolk Mill and Seven Ponds Nutrients Suffolk Millers Pond Nutrients Suffolk Moriches Bay, East Nutrients Suffolk Moriches Bay, West Nutrients Suffolk Peconic River, Lower, and tidal tribs Nutrients Suffolk Quantuck Bay Nutrients Suffolk Shinnecock Bay and Inlet Nutrients Suffolk Tidal tribs to West Moriches Bay Nutrients Sullivan Bodine, Montgomery Lakes Nutrients Sullivan Davies Lake Nutrients Sullivan Evens Lake Nutrients Sullivan Pleasure Lake Nutrients Tompkins Cayuga Lake, Southern End Nutrients Tompkins Cayuga Lake, Southern End Silt/Sediment Tompkins Owasco Inlet, Upper, and tribs Nutrients Ulster Ashokan Reservoir Silt/Sediment Ulster Esopus Creek, Upper, and minor tribs Silt/Sediment Warren Hague Brook and tribs Silt/Sediment 63 303(d) Segments Impaired by Construction Related Pollutant(s) Warren Huddle/Finkle Brooks and tribs Silt/Sediment Warren Indian Brook and tribs Silt/Sediment Warren Lake George Silt/Sediment Warren Tribs to L.George, Village of L George Silt/Sediment Washington Cossayuna Lake Nutrients Washington Lake Champlain, South Bay Nutrients Washington Tribs to L.George, East Shore Silt/Sediment Washington Wood Cr/Champlain Canal and minor tribs Nutrients Wayne Port Bay Nutrients Westchester Amawalk Reservoir Nutrients Westchester Blind Brook, Upper, and tribs Silt/Sediment Westchester Cross River Reservoir Nutrients Westchester Lake Katonah Nutrients Westchester Lake Lincolndale Nutrients Westchester Lake Meahagh Nutrients Westchester Lake Mohegan Nutrients Westchester Lake Shenorock Nutrients Westchester Long Island Sound, Westchester (East) Nutrients Westchester Mamaroneck River, Lower Silt/Sediment Westchester Mamaroneck River, Upper, and minor tribs Silt/Sediment Westchester Muscoot/Upper New Croton Reservoir Nutrients Westchester New Croton Reservoir Nutrients Westchester Peach Lake Nutrients Westchester Reservoir No.1 (Lake Isle) Nutrients Westchester Saw Mill River, Lower, and tribs Nutrients Westchester Saw Mill River, Middle, and tribs Nutrients Westchester Sheldrake River and tribs Silt/Sediment Westchester Sheldrake River and tribs Nutrients Westchester Silver Lake Nutrients Westchester Teatown Lake Nutrients Westchester Titicus Reservoir Nutrients Westchester Truesdale Lake Nutrients Westchester Wallace Pond Nutrients Wyoming Java Lake Nutrients Wyoming Silver Lake Nutrients 64 APPENDIX F – List of NYS DEC Regional Offices Region COVERING THE FOLLOWING COUNTIES: DIVISION OF ENVIRONMENTAL PERMITS (DEP) PERMIT ADMINISTRATORS DIVISION OF WATER (DOW) WATER (SPDES) PROGRAM 1 NASSAU AND SUFFOLK 50 CIRCLE ROAD STONY BROOK, NY 11790 TEL. (631) 444-0365 50 CIRCLE ROAD STONY BROOK, NY 11790-3409 TEL. (631) 444-0405 2 BRONX, KINGS, NEW YORK, QUEENS AND RICHMOND 1 HUNTERS POINT PLAZA, 47-40 21ST ST. LONG ISLAND CITY, NY 11101-5407 TEL. (718) 482-4997 1 HUNTERS POINT PLAZA, 47-40 21ST ST. LONG ISLAND CITY, NY 11101-5407 TEL. (718) 482-4933 3 DUTCHESS, ORANGE, PUTNAM, ROCKLAND, SULLIVAN, ULSTER AND WESTCHESTER 21 SOUTH PUTT CORNERS ROAD NEW PALTZ, NY 12561-1696 TEL. (845) 256-3059 100 HILLSIDE AVENUE, SUITE 1W WHITE PLAINS, NY 10603 TEL. (914) 428 -2505 4 ALBANY, COLUMBIA, DELAWARE, GREENE, MONTGOMERY, OTSEGO, RENSSELAER, SCHENECTADY AND SCHOHARIE 1150 NORTH WESTCOTT ROAD SCHENECTADY, NY 12306-2014 TEL. (518) 357-2069 1130 NORTH WESTCOTT ROAD SCHENECTADY, NY 12306-2014 TEL. (518) 357-2045 5 CLINTON, ESSEX, FRANKLIN, FULTON, HAMILTON, SARATOGA, WARREN AND WASHINGTON 1115 STATE ROUTE 86, PO BOX 296 RAY BROOK, NY 12977-0296 TEL. (518) 897-1234 232 GOLF COURSE ROAD WARRENSBURG, NY 12885-1172 TEL. (518) 623-1200 6 HERKIMER, JEFFERSON, LEWIS, ONEIDA AND ST. LAWRENCE STATE OFFICE BUILDING 317 WASHINGTON STREET WATERTOWN, NY 13601-3787 TEL. (315) 785-2245 STATE OFFICE BUILDING 207 GENESEE STREET UTICA, NY 13501-2885 TEL. (315) 793-2554 BROOME, CAYUGA, CHENANGO, CORTLAND, 615 ERIE BLVD. WEST 615 ERIE BLVD. WEST 7 MADISON, ONONDAGA, SYRACUSE, NY 13204-2400 SYRACUSE, NY 13204-2400 OSWEGO, TIOGA AND TOMPKINS TEL. (315) 426-7438 TEL. (315) 426-7500 CHEMUNG, GENESEE, LIVINGSTON, MONROE, 6274 EAST AVON-LIMA 6274 EAST AVON-LIMA RD. 8 ONTARIO, ORLEANS, SCHUYLER, SENECA, STEUBEN, WAYNE AND YATES ROADAVON, NY 14414-9519 TEL. (585) 226-2466 AVON, NY 14414-9519 TEL. (585) 226-2466 9 ALLEGANY, CATTARAUGUS, CHAUTAUQUA, ERIE, NIAGARA AND WYOMING 270 MICHIGAN AVENUE BUFFALO, NY 14203-2999 TEL. (716) 851-7165 270 MICHIGAN AVENUE BUFFALO, NY 14203-2999 TEL. (716) 851-7070 65 C.T. MALE ASSOCIATES APPENDIX B Soils Information Hydrologic Soil Group—Warren County, New York Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/7/2021 Page 1 of 447990104799030479905047990704799090479911047991304799010479903047990504799070479909047991104799130606880606900606920606940606960606980607000607020607040607060607080 606880 606900 606920 606940 606960 606980 607000 607020 607040 607060 607080 43° 20' 14'' N 73° 40' 53'' W43° 20' 14'' N73° 40' 44'' W43° 20' 10'' N 73° 40' 53'' W43° 20' 10'' N 73° 40' 44'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 45 90 180 270 Feet 0 10 20 40 60 Meters Map Scale: 1:966 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A A/D B B/D C C/D D Not rated or not available Soil Rating Points A A/D B B/D C C/D D Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:15,800. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Warren County, New York Survey Area Data: Version 20, Jun 11, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jun 10, 2015—Mar 29, 2017 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Hydrologic Soil Group—Warren County, New York Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/7/2021 Page 2 of 4 Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI HnB Hinckley cobbly sandy loam, 3 to 8 percent slopes A 2.1 100.0% Totals for Area of Interest 2.1 100.0% Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method: Dominant Condition Hydrologic Soil Group—Warren County, New York Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/7/2021 Page 3 of 4 Component Percent Cutoff: None Specified Tie-break Rule: Higher Hydrologic Soil Group—Warren County, New York Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/7/2021 Page 4 of 4 THE ROBERTS GARDEN NORTH PARTNERSHIPQUEENSBURY HOLDINGS, LLCBOOK 4545 PAGE 291TAX MAP PARCEL ID 296.13-1-17.2WEEKS ROADTOWN ROADNEW YORK STATE ROUTE NO. 9- S.H. 417ROW VARIES474.90474.69474.76475.20476.49476.65476.19475.77476.67477.58477.97477.11477.37478.72479.98478.57477.19476.89476.34476.83477.150.4'±0.6'±52.1'±115.9'±WVWVWVWVWVWVWVWVSMHSMHSMHBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLCBCICBCICIRFCIRF (FLUSH) AT CORNERCMONELEC OUTLETGGGGGGGGG GGGGGGGGG GAS VALVEHYDIPFIRF AT CORNERLPLPLPLPLPLPLPLPLPLPSSSSSSSSSSSSRIM=475.038"INV THRU=467.93TSP"BLIND PERSONAREA" SIGNNM 3.5-1VZ 3W/TEL RISERNM 2NYT 2NM 3.5VZ 3.5W/GUY WIREGUY WIREBENCHMARK- RR SPIKEFOUND IN POLE NM 3ELEVATION=474.91'BENCHMARK -N.H.O.A. ON HYDRANTELEVATION=479.30'OLD SIGN POSTW/STONE PLANTERCONCRETEPADNM 3NYT 3TSBTSBTSBBLACKTOPBLACKTOPBLACKTOPBLACKTOP1 STORY COMMERCIAL BUILDINGFORMER CARWASHOVERHANGS AS NOTEDTEL. FLAGDOUBLE YELLOW LINE"STOP"SIGN"ROUTE 9/WEEKS ROAD"SIGNS"30 MPH"SIGNSIGN"DEAD END"SIGNNM 1W/TRANSFORMER,ELEC. RISER &TEL RISERW/GUY WIRESIGN W/ELEC OUTLETTRANSFORMERON CONCRETEPADCONCRETE MONUMENT FOUNDW/ NYS DISKSIGNBLACKTOPGRANITE CURBCONCRETECURBGAS METER1.5' O.H.1.5' O.H.3.0' O.H.3.0' O.H.1.0' O.H. 1.0' O.H. 1.0' O.H. 3.0' O.H. 3.0' O.H.1.0' O.H.COVERED CONC PAD8"PVC8"PVC(A)8"PVC8"PVCRIM=473.84(A)8" INV IN=466.848"INV THRU=466.248"PVC CONCRETECBCITF=473.23TF=473.02TF=474.35BRICK PAVERCROSSWALKRIM=476.488" INV THRU=467.288"PVC CROSSWALK PEDESTALTSP ON CONCRETE BASEGGGGGGGGGGG G G G G GAPPROXIMATE LOCATION OFEXISTING 1" PLASTIC GASSERVICE PER MAPPINGPROVIDED BYNATIONAL GRIDAPPROXIMATE LOCATION OF EXISTING4" CS-35# GAS LINE PER MAPPING PROVIDED BYNATIONAL GRIDAPPROXIMATE LOCATION OF EXISTING12" CS-35# GAS LINEPER MAPPING PROVIDED BYNATIONAL GRIDRET. WALLRAISED PLANTER478478477476476BRICK PAVERCROSSWALKSTOPBAR4 7 6 FLUSH CURBCONC47447547547547547647828.2'96.2'28.2'13.3'8.6'13.4'8.7'34.2'58.0'30.0'58.0'5.1'S06°34'10"E71.67'S00°20'40"E55.00'S42°50'10"W37.00'N82°51'03"W41.00'S06°33'00"E63.50'168.71'N83°27'00"E83.60'N83°27'00"ES77°35'40"W137.17'N83°05'20"W170.11'339.12'160.50'S53°55'01"W0.37' TO CMON FOUNDN20°25'05"W0.51' TO CIRF1.2'±476477BLACKTOPPATCH1967 HIGHWAYBOUNDARYDEED LINE FORMERPINE DRIVEUNDEVELOPED1 9 6 7 H I G HW A Y B O U N D A R Y SB1SB1EX ELEV:476±PR ELEV:473±DEPTH=469± (-7)N: 19874.0362E: 19795.63837)SB3SB3EX ELEV:478±PR ELEV:475±DEPTH=471± (-7)N: 19971.4510E: 19750.2313SB4SB4EX ELEV:478±PR ELEV:476.0±DEPTH=472.0± (-6)N: 20027.2212E: 19725.1052 C.T. MALE ASSOCIATES K:\Projects\211302\LD\Qbury_Hoffman_InfiltrationTest_Data\InfiltrationTest_SB-1_OCT-8-2021.doc REPORT OF INFILTRATION TEST Project: Queensbury Hoffmans Test No.: SB-1 Client: Job No.: Weather & Temperature: 61 and Sunny Date of Test: 10/8/2021 Performed By: D Landreville Witness: SUBSURFACE INFORMATION Soil Types & Depths Encountered: See TP-1 INFILTRATION TEST HOLE DATA Depth to Bottom of Test Pit (Design Bottom of SMP): 3 ft Dimensions of Infiltration Hole: Depth: 24” Length: ― Width: ― Diameter: 4” Presoak Drainage Time: N/A TEST DATA Time required for water level to drop 24 inches within 4” diameter PVC pipe or Drop Height after 1 Hour Run No. Start End Time Drop Height (inches) 1 1:31 24” 2 1:44 24” 3 1:56 24” 4 1:59 24” Remarks: Infiltration Rate Established @ 2 min for 24” C.T. MALE ASSOCIATES K:\Projects\211302\LD\Qbury_Hoffman_InfiltrationTest_Data\InfiltrationTest_SB-3_OCT-8-2021.doc REPORT OF INFILTRATION TEST Project: Queensbury Hoffmans Test No.: SB-3 Client: Job No.: Weather & Temperature: 61 and Sunny Date of Test: 10/8/2021 Performed By: D Landreville Witness: SUBSURFACE INFORMATION Soil Types & Depths Encountered: See TP-2 INFILTRATION TEST HOLE DATA Depth to Bottom of Test Pit (Design Bottom of SMP): 3 ft Dimensions of Infiltration Hole: Depth: 24” Length: ― Width: ― Diameter: 4” Presoak Drainage Time: N/A TEST DATA Time required for water level to drop 24 inches within 4” diameter PVC pipe or Drop Height after 1 Hour Run No. Start End Time Drop Height (inches) 1 1:00 24” 2 1:19 24” 3 1:22 24” 4 1:32 24” Remarks: Infiltration Rate Established @ 2 min for 24” C.T. MALE ASSOCIATES K:\Projects\211302\LD\Qbury_Hoffman_InfiltrationTest_Data\InfiltrationTest_SB-4_OCT-8-2021.doc REPORT OF INFILTRATION TEST Project: Queensbury Hoffmans Test No.: SB-4 Client: Job No.: Weather & Temperature: 61 and Sunny Date of Test: 10/8/2021 Performed By: D Landreville Witness: SUBSURFACE INFORMATION Soil Types & Depths Encountered: See TP-3 INFILTRATION TEST HOLE DATA Depth to Bottom of Test Pit (Design Bottom of SMP): 2 ft Dimensions of Infiltration Hole: Depth: 24” Length: ― Width: ― Diameter: 4” Presoak Drainage Time: N/A TEST DATA Time required for water level to drop 24 inches within 4” diameter PVC pipe or Drop Height after 1 Hour Run No. Start End Time Drop Height (inches) 1 1:48 24” 2 1:54 24” 3 2:00 24” 4 2:00 24” Remarks: Infiltration Rate Established @ 2 min for 24” PROJECT NUMBER: 0' 0' 5' 5' 7' 10' 10' 15' 15' TEST PIT LOG (518) 786-7400 • FAX (581) 786-7299 50 Century Hill Drive 21.1302 Kobelco 80 CS Latham, NY 12110 Engineering, Surveying, Architecture, PROJECT NAME: Landscape Architecture & Geology D.P.C. LOGGED BY: CONTRACTOR EQUIPMENT: 10/8/2021 Queensbury Hoffmans Bottom of hole 7' D Landreville DATE: 12" of Top Soil 15" of Orangeish / Red Coarse Sand Light Brown Colored Coarse Sand TOTAL DEPTH: WATER AT: 7' N/A NOTES: TEST PIT LOG NO. TP-1 C.T. MALE ASSOCIATES PROJECT NUMBER: 0' 0' 5' 5' 7' 10' 10' 15' 15' NOTES: Light Brown Colored Coarse Sand TOTAL DEPTH: WATER AT: 7' N/A 20" of Orangeish / Red Coarse Sand Bottom of hole 7' D Landreville DATE: 16" of Top Soil LOGGED BY: CONTRACTOR EQUIPMENT: 10/8/2021 Queensbury Hoffmans TEST PIT LOG (518) 786-7400 • FAX (581) 786-7299 50 Century Hill Drive 21.1302 Kobelco 80 CS Latham, NY 12110 Engineering, Surveying, Architecture, PROJECT NAME: Landscape Architecture & Geology D.P.C. TEST PIT LOG NO. TP-3 C.T. MALE ASSOCIATES PROJECT NUMBER: 0' 0' 5' 5' 7' 10' 10' 15' 15' NOTES: Light Brown Colored Coarse Sand TOTAL DEPTH: WATER AT: 7' N/A Bottom of hole 7' D Landreville DATE: 12" of Top Soil 18" of Orangeish / Red Coarse Sand LOGGED BY: CONTRACTOR EQUIPMENT: 10/8/2021 Queensbury Hoffmans TEST PIT LOG (518) 786-7400 • FAX (581) 786-7299 50 Century Hill Drive 21.1302 Kobelco 80 CS Latham, NY 12110 Engineering, Surveying, Architecture, PROJECT NAME: Landscape Architecture & Geology D.P.C. TEST PIT LOG NO. TP-4 C.T. MALE ASSOCIATES C.T. MALE ASSOCIATES APPENDIX C Draft NOI (Notice of Intent) Application Form NOI for coverage under Stormwater General Permit for Construction Activity version 1.31 (Submission #: HPC-CRBB-TQRXK, version 1) Details Submission Alias Hoffman - Town of Queensbury NOI for coverage under Stormwater General Permit for Construction Activity Originally Started By Owen Speulstra Submission ID HPC-CRBB-TQRXK Submission Reason New Status Draft Form Input Owner/Operator Information Owner/Operator Name (Company/Private Owner/Municipality/Agency/Institution, etc.) Hoffman Development Corp Owner/Operator Contact Person Last Name (NOT CONSULTANT) Andrews Owner/Operator Contact Person First Name Marty Owner/Operator Mailing Address 16 Kairnes Street City Albany Firefox https://nform-prod.dec.ny.gov/app/ 1 of 15 10/11/2021, 12:18 PM State New York Zip 12205 Phone 518-527-6717 Email mandrews@hoffman-development.com Federal Tax ID NONE PROVIDED Project Location Project/Site Name Hoffan Car Wash Street Address (Not P.O. Box) 919 State Route 9 East City/Town/Village (THAT ISSUES BUILDING PERMIT) Queensbury NY Zip 12072 5 WARREN Name of Nearest Cross Street Weeks Distance to Nearest Cross Street (Feet) 0 Side of Street State DEC Region County Firefox https://nform-prod.dec.ny.gov/app/ 2 of 15 10/11/2021, 12:18 PM North Tax Map Numbers Section-Block-Parcel 296.17-1-42 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 43.337016146138,-73.6803370583382 Project Details Redevelopment with increase in impervious area 3. Select the predominant land use for both pre and post development conditions. Commercial Commercial 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) 2.0 Project In Relation to Cross Street 2. What is the nature of this project? Pre-Development Existing Landuse Post-Development Future Land Use Firefox https://nform-prod.dec.ny.gov/app/ 3 of 15 10/11/2021, 12:18 PM Total Area to be Disturbed (acres) 1.8 Existing Impervious Area to be Disturbed (acres) 0.6 Future Impervious Area Within Disturbed Area (acres) 0.9 No 6. Indicate the percentage (%) of each Hydrologic Soil Group(HSG) at the site. A (%) 100 B (%) 0.0 C (%) 0.0 D (%) 0.0 No 8. Enter the planned start and end dates of the disturbance activities. Start Date 4/1/2022 End Date 9/30/2022 9. Identify the nearest surface waterbody(ies) to which construction site runoff will discharge. Halfway Creek Stream/Creek Off Site Other Waterbody Type Off Site Description NONE PROVIDED 5. Do you plan to disturb more than 5 acres of soil at any one time? 7. Is this a phased project? 9a. Type of waterbody identified in question 9? Firefox https://nform-prod.dec.ny.gov/app/ 4 of 15 10/11/2021, 12:18 PM NONE PROVIDED No No Yes If No, skip question 13. No If Yes, what is the acreage to be disturbed? NONE PROVIDED No Yes 16. What is the name of the municipality/entity that owns the separate storm sewer system? NYSDOT No No No 9b. If "wetland" was selected in 9A, how was the wetland identified? 10. Has the surface waterbody(ies in question 9 been identified as a 303(d) segment in Appendix E of GP-0-20-001? 11. Is this project located in one of the Watersheds identified in Appendix C of GP-0-20-001? 12. Is the project located in one of the watershed areas associated with AA and AA-S classified waters? 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? 14. Will the project disturb soils within a State regulated wetland or the protected 100 foot adjacent area? 15. Does the site runoff enter a separate storm sewer system (including roadside drains, swales, ditches, culverts, etc)? 17. Does any runoff from the site enter a sewer classified as a Combined Sewer? 18. Will future use of this site be an agricultural property as defined by the NYS Agriculture and Markets Law? 19. Is this property owned by a state authority, state agency, federal government or local government? Firefox https://nform-prod.dec.ny.gov/app/ 5 of 15 10/11/2021, 12:18 PM No Required SWPPP Components Yes Yes If you answered No in question 22, skip question 23 and the Post-construction Criteria and Post-construction SMP Identification sections. Yes Professional Engineer (P.E.) SWPPP Preparer CT Male Associates Contact Name (Last, Space, First) NONE PROVIDED Mailing Address 50 Century Hill Drive City Latham State New York Zip 12110 Phone 518-786-7400 20. Is this a remediation project being done under a Department approved work plan? (i.e. CERCLA, RCRA, Voluntary Cleanup Agreement, etc.) 21. Has the required Erosion and Sediment Control component of the SWPPP been developed in conformance with the current NYS Standards and Specifications for Erosion and Sediment Control (aka Blue Book)? 22. Does this construction activity require the development of a SWPPP that includes the post-construction stormwater management practice component (i.e. Runoff Reduction, Water Quality and Quantity Control practices/techniques)? 23. Has the post-construction stormwater management practice component of the SWPPP been developed in conformance with the current NYS Stormwater Management Design Manual? 24. The Stormwater Pollution Prevention Plan (SWPPP) was prepared by: Firefox https://nform-prod.dec.ny.gov/app/ 6 of 15 10/11/2021, 12:18 PM Email NONE PROVIDED Download SWPPP Preparer Certification Form Please take the following steps to prepare and upload your preparer certification form: 1) Click on the link below to download a blank certification form 2) The certified SWPPP preparer should sign this form 3) Scan the signed form 4) Upload the scanned document Download SWPPP Preparer Certification Form Please upload the SWPPP Preparer Certification NONE PROVIDED Comment NONE PROVIDED Erosion & Sediment Control Criteria Yes 26. Select all of the erosion and sediment control practices that will be employed on the project site: Dust Control Silt Fence Stabilized Construction Entrance Storm Drain Inlet Protection None Sodding Temporary Swale Protecting Vegetation Rock Outlet Protection Other NONE PROVIDED 25. Has a construction sequence schedule for the planned management practices been prepared? Temporary Structural Biotechnical Vegetative Measures Permanent Structural Firefox https://nform-prod.dec.ny.gov/app/ 7 of 15 10/11/2021, 12:18 PM Post-Construction Criteria * IMPORTANT: Completion of Questions 27-39 is not required if response to Question 22 is No. Preservation of Undisturbed Area Building Footprint Reduction Preservation of Buffers Roadway Reduction Sidewalk Reduction Reduction of Clearing and Grading 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) 0.070 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 (Area/Volume Reduction) and Standard SMPs with RRv capacity identified in question 29. (acre-feet) 0.070 Yes If Yes, go to question 36. If No, go to question 32. 27. Identify all site planning practices that were used to prepare the final site plan/layout for the project. 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). 31. Is the Total RRv provided (#30) greater than or equal to the total WQv required (#28)? Firefox https://nform-prod.dec.ny.gov/app/ 8 of 15 10/11/2021, 12:18 PM 32. Provide the Minimum RRv required based on HSG. [Minimum RRv Required = (P) (0.95) (Ai) / 12, Ai=(s) (Aic)] (acre-feet) 0.04 Yes If Yes, go to question 33. Note: Use the space provided in question #39 to summarize the specific site limitations and justification for not reducing 100% of WQv required (#28). A detailed evaluation of the specific site limitations and justification for not reducing 100% of the WQv required (#28) must also be included in the SWPPP. If No, sizing criteria has not been met; therefore, NOI can not be processed. SWPPP preparer must modify design to meet sizing criteria. 33. SMPs Use the Post-construction SMP Identification section to identify the Standard SMPs and, if applicable, the Alternative SMPs to be used to treat the remaining total WQv (=Total WQv Required in #28 - Total RRv Provided in #30). Also, provide the total impervious area that contributes runoff to each practice selected. NOTE: Use the Post-construction SMP Identification section to identify the SMPs used on Redevelopment projects. 33a. Indicate the Total WQv provided (i.e. WQv treated) by the SMPs identified in question #33 and Standard SMPs with RRv Capacity identified in question #29. (acre-feet) 0 Note: For the standard SMPs with RRv capacity, the WQv provided by each practice = the WQv calculated using the contributing drainage area to the practice - provided by the practice. (See Table 3.5 in Design Manual) 34. Provide the sum of the Total RRv provided (#30) and the WQv provided (#33a). 0.070 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. 32a. Is the Total RRv provided (#30) greater than or equal to the Minimum RRv Required (#32)? 35. Is the sum of the RRv provided (#30) and the WQv provided (#33a) greater than or equal to the total WQv required (#28)? Firefox https://nform-prod.dec.ny.gov/app/ 9 of 15 10/11/2021, 12:18 PM 36. Provide the total Channel Protection Storage Volume (CPv required and provided or select waiver (#36a), if applicable. CPv Required (acre-feet) 0.089 CPv Provided (acre-feet) 0.129 NONE PROVIDED 37. Provide the Overbank Flood (Qp) and Extreme Flood (Qf) control criteria or select waiver (#37a), if applicable. Overbank Flood Control Criteria (Qp) Pre-Development (CFS) 2.97 Post-Development (CFS) 1.14 Total Extreme Flood Control Criteria (Qf) Pre-Development (CFS) 591 Post-Development (CFS) 3.37 NONE PROVIDED Yes If Yes, Identify the entity responsible for the long term Operation and Maintenance Pilot Travel Centers, LLC 39. Use this space to summarize the specific site limitations and justification for not reducing 100% of WQv required (#28). (See question #32a) This space can also be used for other pertinent project information. NONE PROVIDED Post-Construction SMP Identification 36a. The need to provide channel protection has been waived because: 37a. The need to meet the Qp and Qf criteria has been waived because: 38. Has a long term Operation and Maintenance Plan for the post-construction stormwater management practice(s) been developed? Firefox https://nform-prod.dec.ny.gov/app/ 10 of 15 10/11/2021, 12:18 PM 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 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 Firefox https://nform-prod.dec.ny.gov/app/ 11 of 15 10/11/2021, 12:18 PM Total Contributing Impervious Acres for Rain Barrel/Cistern (RR-8) NONE PROVIDED Total Contributing Impervious Acres for Porous Pavement (RR-9) 0.21 Total Contributing Impervious Acres for Green Roof (RR-10) NONE PROVIDED Standard SMPs with RRv Capacity Total Contributing Impervious Acres for Infiltration Trench (I-1) NONE PROVIDED Total Contributing Impervious Acres for Infiltration Basin (I-2) 0.51 Total Contributing Impervious Acres for Dry Well (I-3) NONE PROVIDED Total Contributing Impervious Acres for Underground Infiltration System (I-4) NONE PROVIDED Total Contributing Impervious Acres for Bioretention (F-5) NONE PROVIDED Total Contributing Impervious Acres for Dry Swale (O-1) NONE PROVIDED Standard SMPs Total Contributing Impervious Acres for Micropool Extended Detention (P-1) NONE PROVIDED Total Contributing Impervious Acres for Wet Pond (P-2) NONE PROVIDED Total Contributing Impervious Acres for Wet Extended Detention (P-3) NONE PROVIDED Total Contributing Impervious Acres for Multiple Pond System (P-4) NONE PROVIDED Total Contributing Impervious Acres for Pocket Pond (P-5) NONE PROVIDED Firefox https://nform-prod.dec.ny.gov/app/ 12 of 15 10/11/2021, 12:18 PM Total Contributing Impervious Acres for Surface Sand Filter (F-1) NONE PROVIDED Total Contributing Impervious Acres for Underground Sand Filter (F-2) NONE PROVIDED Total Contributing Impervious Acres for Perimeter Sand Filter (F-3) NONE PROVIDED Total Contributing Impervious Acres for Organic Filter (F-4) NONE PROVIDED Total Contributing Impervious Acres for Shallow Wetland (W-1) NONE PROVIDED Total Contributing Impervious Acres for Extended Detention Wetland (W-2) NONE PROVIDED Total Contributing Impervious Acres for Pond/Wetland System (W-3) NONE PROVIDED Total Contributing Impervious Acres for Pocket Wetland (W-4) NONE PROVIDED Total Contributing Impervious Acres for Wet Swale (O-2) NONE PROVIDED Alternative SMPs (DO NOT INCLUDE PRACTICES BEING USED FOR PRETREATMENT ONLY) Total Contributing Impervious Area for Hydrodynamic 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. Firefox https://nform-prod.dec.ny.gov/app/ 13 of 15 10/11/2021, 12:18 PM 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 None If SPDES Multi-Sector GP, then give permit ID NONE PROVIDED If Other, then identify NYSDOT 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 Yes - Please attach the MS4 Acceptance form below If No, skip question 44 NONE PROVIDED 40. Identify other DEC permits, existing and new, that are required for this project/facility. 41. Does this project require a US Army Corps of Engineers Wetland Permit? 43. Is this project subject to the requirements of a regulated, traditional land use control MS4? 44. Has the "MS4 SWPPP Acceptance" form been signed by the principal executive officer or ranking elected official and submitted along with this NOI? Firefox https://nform-prod.dec.ny.gov/app/ 14 of 15 10/11/2021, 12:18 PM MS4 SWPPP Acceptance Form Download Download form from the link below. Complete, sign, and upload. MS4 SWPPP Acceptance Form MS4 Acceptance Form Upload NONE PROVIDED Comment NONE PROVIDED Owner/Operator Certification Owner/Operator Certification Form Download Download the certification form by clicking the link below. Complete, sign, scan, and upload the form. Owner/Operator Certification Form (PDF, 45KB) Upload Owner/Operator Certification Form NONE PROVIDED Comment NONE PROVIDED Firefox https://nform-prod.dec.ny.gov/app/ 15 of 15 10/11/2021, 12:18 PM C.T. MALE ASSOCIATES APPENDIX D NYS OPRHP Correspondence C.T. MALE ASSOCIATES APPENDIX E Drainage Maps and Supporting Calculations LANDS NOW OR FORMERLY OFTHE ROBERTS GARDEN NORTH PARTNERSHIPBOOK 810 PAGE 271TAX MAP PARCEL ID 296.17-1-41LANDS NOW OR FORMERLY OFQUEENSBURY HOLDINGS, LLCBOOK 4545 PAGE 291TAX MAP PARCEL ID 296.13-1-17.2LANDS NOW OR FORMERLY OFNILKANTH, INCBOOK 4882 PAGE 289TAX MAP PARCEL ID 296.13-1-17.1WEEKS ROADTOWN ROADNEW YORK STATE ROUTE NO. 9- S.H. 417ROW VARIES474.14474.14474.23474.27474.90474.69474.76475.20476.49476.65476.19474.71475.77476.67477.58477.97479.29479.68477.11477.37478.72480.34481.11481.10481.65482.38481.72481.25480.86481.94480.30480.70479.98479.56478.57487.30478.44477.19476.89476.60477.31478.19478.25478.16478.12477.93476.78476.95477.07476.34476.67476.75474.32474.54474.76474.88474.96474.85474.99475.34476.92473.86474.54473.62475.39475.29474.61484.22483.28476.83477.150.4'±0.6'±75.6'±75.8'±52.1'±115.9'±88.0'±88.2'±WVWVWVWVWVWVWVWVWVSMHSMHSMHSMHBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLBOLCBCICBCICIRF AT CORNERCIRFCIRF (FLUSH) AT CORNERCMONGAS MARKERGAS TESTGAS VALVEHYDIPFIRF AT CORNERIRFTPEDTPEDSSSSSSSSSSSSTSP"BLIND PERSONAREA" SIGNOLD SIGN POSTW/STONE PLANTERCONCRETEPADTSBTSBTSBBLACKTOPBLACKTOPBLACKTOPBLACKTOPWOODED AREABLACKTOPTRANSFORMERCONCRETEPADCONCRETEPAD1 STORY COMMERCIAL BUILDING"OUTBACK STEAKHOUSE"1 STORY COMMERCIAL BUILDINGFORMER CARWASHOVERHANGS AS NOTEDTEL. FLAGDOUBLE YELLOW LINE"STOP"SIGN"ROUTE 9/WEEKS ROAD"SIGNS"30 MPH"SIGNSIGN"DEAD END"SIGNUG GAS PAINTMARK-OUTSPLIT RAIL FENCEBLACKTOPCONC6'H WOODFENCESIGN W/ELEC OUTLETTRANSFORMERON CONCRETEPADCONCRETE MONUMENT FOUNDW/ NYS DISKSIGNBLACKTOPGRANITE CURBCONCRETECURB1.5' O.H.1.5' O.H.3.0' O.H.3.0' O.H.1.0' O.H. 1.0' O.H. 1.0' O.H. 3.0' O.H. 3.0' O.H.1.0' O.H.COVERED CONC PAD8"PVC8"PVC(A)8"PVC8"PVC 8"PVC CONCRETECBCITF=473.23TF=473.02TF=474.35BRICK PAVERCROSSWALK8"PVC CROSSWALK PEDESTALTSP ON CONCRETE BASERET. WALLRAISED PLANTER479478477476475474482482481 478478477476476BRICK PAVERCROSSWALKSTOPBAR4 7 6 FLUSH CURBCONC4744754754744754754764780.4'±2.3'±28.2'96.2'28.2'13.3'8.6'13.4'8.7'34.2'58.0'30.0'58.0'5.1'S06°34'10"E71.67'S00°20'40"E55.00'S42°50'10"W37.00'N82°51'03"W41.00'S06°33'00"E63.50'168.71'N83°27'00"ES06°33'00"EN83°27'00"E83.60'N83°27'00"ES77°35'40"W137.17'N83°05'20"W170.11'N06°32'46"W339.12'123.40'160.50'S53°55'01"W0.37' TO CMON FOUNDN20°25'05"W0.51' TO CIRFN26°09'57"E1.03' TO IRF1.2'±479478477476477480HIGHWAY BOUNDARYBLACKTOPPATCH1967 HIGHWAYBOUNDARYDEED LINE FORMERPINE DRIVEUNDEVELOPED1 9 6 7 H I G HW A Y B O U N D A R Y LANDS NOW OR FORMERLY OF919 STATE ROUTE 9, LLCBOOK 6060 PAGE 199TAX MAP PARCEL ID 296.17-1-42AREA = 2.011± ACRES OR87,615± SQ. FT.DP-1DP-2E2±0.980ACRESE1B±0.332ACRESE1A±0.987ACRESAPPR.REVISIONS RECORD/DESCRIPTION579863421DATEDRAFTERCHECK:DRAFTEDCHECKEDPROJ. NOSCALE :DATE :::UNAUTHORIZED ALTERATION ORADDITION TO THIS DOCUMENT IS AVIOLATION OF THE NEW YORK STATEEDUCATION LAW.C.T. MALE ASSOCIATES:cDWG. NO:SHEETOFPROJECT NUMBER:C.T. MALE ASSOCIATESEngineering, Surveying, Architecture, Landscape Architecture & Geology, D.P.C.50 CENTURY HILL DRIVE, LATHAM, NY 12110 PH 518.786.7400www.ctmale.comCOBLESKILL, NY · GLENS FALLS, NY · POUGHKEEPSIE, NYJOHNSTOWN, NY · RED HOOK, NY · SYRACUSE, NY21.130219.9547HOFFMAN CAR WASH919 STATE ROUTE 9TOWN OF QUEENSBURYWARREN COUNTY, NEW YORK2021SEPT. 15, 20211XREFS:CAD DWG. FILE NAME: CAD DWG. FILE NAME:DESIGNED"ONLY COPIES OF THIS MAP SIGNED IN RED INK AND EMBOSSED WITHTHE SEAL OF AN OFFICER OF C.T. MALE ASSOCIATES OR ADESIGNATED REPRESENTATIVE SHALL BE CONSIDERED TO BE A VALIDTRUE COPY".DRE.dwg K:\Projects\211302\LD\Drawings-Maps\Drainage Maps\DRE.dwg EXISTING DRAINAGE MAPOKSOKSMAC1"=30'DRE1NONEBAR SCALE1 inch = ft.30015306030 PROPOSED 4"DIP WATERLATERALFFE:477.83FFE:478.00FFE:478.00FFE:477.67FFE:478.13WWWWINFILTRATIONBASIN #IB1SWEET ROADSSSSG G GGUEUEUEFFE:478.00STSTSTSTSTSTSTSTSTSTSTDETENTIONBASIN #DB1477478476475474476478479480478478478479479479477476477476475477477478480480478479477480 48147347647747547447547847747647547 7473474WEEKS ROADTOWN ROADNEW YORK STATE ROUTE NO. 9- S.H. 417ROW VARIES474.14474.14474.23474.72474.65168474.91BM RRSF UP474.27474.90474.69474.76475.20476.49476.65476.19474.71475.77476.67477.58477.97479.29479.68477.11477.37478.72480.34481.11481.10481.65482.38481.72481.25480.86481.94480.30480.70479.98479.56478.57487.30478.44476.13476.12476.13476.19476.24476.22476.08475.95475.94475.89475.59475.24476.01475.99476.15476.36476.34483479.30BMS HYD NHOA474.32474.88474.96474.96474.91474.79474.57474.49474.35474.27475.34472.32472.85473.11473.08473.00473.11473.12473.37473.78473.89473.50473.59473.80473.91474.42474.68475.09475.39475.29484.22483.28474.74475.04475.08475.07WVWVWVWVWVWVWVWVWVSMHSMHSMHSMHCBCICBCIGAS MARKERGAS TESTGAS VALVEHYDTPEDTPEDSSSSSSSSSSSSTSP"BLIND PERSONAREA" SIGNTSBTSBTSBBLACKTOPBLACKTOPWOODED AREABLACKTOPTRANSFORMERCONCRETEPADCONCRETEPAD1 STORY COMMERCIAL BUILDING"OUTBACK STEAKHOUSE"TEL. FLAGDOUBLE YELLOW LINE"STOP"SIGN"ROUTE 9/WEEKS ROAD"SIGNS"30 MPH"SIGNSIGN"DEAD END"SIGNGUG GAS PAINTMARK-OUTSPLIT RAIL FENCEBLACKTOPCONC6'H WOODFENCETRANSFORMERON CONCRETEPADSIGNBLACKTOPGRANITE CURBCONCRETECURB8"PVC8"PVC(A)8"PVC8"PVC 8"PVC CBCITF=473.23TF=473.02TF=474.35BRICK PAVERCROSSWALK8"PVC CROSSWALK PEDESTALTSP ON CONCRETE BASEGGGGGGGGGGG G G G G GAPPROXIMATE LOCATION OF EXISTING4" CS-35# GAS LINE PER MAPPING PROVIDED BYNATIONAL GRIDAPPROXIMATE LOCATION OF EXISTING12" CS-35# GAS LINEPER MAPPING PROVIDED BYNATIONAL GRID479478477476475474482482481 478478477476476BRICK PAVERCROSSWALKSTOPBAR4 7 6 FLUSH CURB474475475474475475476478S06°34'10"E71.67'S00°20'40"E55.00'S42°50'10"W37.00'N82°51'03"W41.00'S06°33'00"E63.50'168.71'N83°27'00"ES06°33'00"EN83°27'00"E83.60'N83°27'00"ES77°35'40"W137.17'N83°05'20"W170.11'N06°32'46"W339.12'123.40'160.50'S53°55'01"W0.37' TO CMON FOUNDN20°25'05"W0.51' TO CIRFN26°09'57"E1.03' TO IRF479478477476477480HIGHWAY BOUNDARY1967 HIGHWAYBOUNDARYDEED LINE FORMERPINE DRIVEUNDEVELOPED1 9 6 7 H I G HW A Y B O U N D A R Y P1G±0.336ACRESDP-1P1F±0.061ACRESP1E±0.105ACRESP1D±0.105ACRESP2±0.500ACRESP1A±0.500ACRESP1C±0.429ACRESDP-2P1B±0.265ACRESAPPR.REVISIONS RECORD/DESCRIPTION579863421DATEDRAFTERCHECK:DRAFTEDCHECKEDPROJ. NOSCALE :DATE :::UNAUTHORIZED ALTERATION ORADDITION TO THIS DOCUMENT IS AVIOLATION OF THE NEW YORK STATEEDUCATION LAW.C.T. MALE ASSOCIATES:cDWG. NO:SHEETOFPROJECT NUMBER:C.T. MALE ASSOCIATESEngineering, Surveying, Architecture, Landscape Architecture & Geology, D.P.C.50 CENTURY HILL DRIVE, LATHAM, NY 12110 PH 518.786.7400www.ctmale.comCOBLESKILL, NY · GLENS FALLS, NY · POUGHKEEPSIE, NYJOHNSTOWN, NY · RED HOOK, NY · SYRACUSE, NY21.130219.9547HOFFMAN CAR WASH919 STATE ROUTE 9TOWN OF QUEENSBURYWARREN COUNTY, NEW YORK2021SEPT. 15, 20211XREFS:CAD DWG. FILE NAME: CAD DWG. FILE NAME:DESIGNEDDRP.dwg K:\Projects\211302\LD\Drawings-Maps\Drainage Maps\DRP.dwg PROPOSED DRAINAGE MAPOKSOKSMAC1"=30'DRP1NONEBAR SCALE1 inch = ft.30015306030 Infiltration Basin Worksheet Design Point:1 Catchment Number Total Area (Acres) Impervious Area (Acres) Percent Impervious % Rv WQv (ft 3 ) Precipitation (in)Description 1 0.76 0.51 0.67 0.65 2164.93 1.20 Infiltration Basin 0.00 67% 0.65 2,165 ft 3 4.00 in/hour 50 % WQv 1,082 ft 3 2,221 ft 3 Design Volume 2,165 ft 3 Basal Area Required 541 ft 2 Basal Area Provided 1,900 ft 2 Design Depth 4.00 ft Volume Provided 7,600 ft 3 RRv 2,165 ft 3 Volume Treated 0 ft 3 Sizing √ OK 90% of the storage provided in the basin or WQv whichever is smaller The infiltration basin must provide storage equal to or greater than the WQv of the contributing area. This is the portion of the WQv that is not reduced/infiltrated Storage Volume provided in infiltration basin area (not including pretreatment. Determine Runoff Reduction Sedimentation Basin Enter the portion of the WQv that is not reduced for all practices routed to this practice. Infiltration practices shall be designed to exfiltrate the entire WQv through the floor of each practice. Enter Impervious Area Reduced by Disconnection of Rooftops <<WQv after adjusting for Disconnected Rooftops WQv Enter Site Data For Drainage Area to be Treated by Practice Pretreatment Techniques to Prevent Clogging Size An Infiltration Basin Infiltration Rate Pretreatment Sizing Pretreatment Required Volume Pretreatment Provided Pretreatment Techniques utilized Okay 25% minimum; 50% if >2 in/hr 100% if >5in/hour Porous Pavement Worksheet Ap ft2 Vw ft3 n dt Design Point:1 Catchment Number Total Area (Acres) Impervious Area (Acres) Percent Impervious % Rv WQv (ft 3 ) Precipitation (in)Description 2 0.21 0.21 1.00 0.95 869.02 1.20 Porous Pavement 4.00 in/hour Vw 869 ft 3 n 0.40 - dt 0.50 ft Ap 4,345 sf 5,406 sf 1,081 ft 3 RRv 869 ft 3 Are underdrains being used? Yes -Only Gravel Bed Depth below underdrain can be considered. Ap = Vw / (n x dt) Determine the Runoff Reduction Enter Site Data For Drainage Area to be Treated by Practice Calculate Required Surface Area Required porous pavement surface area Design Volume porosity of gravel bed/resevoir depth of gravel bed/resevoir Assume .4 for gravel Soil Inflitration Rate Enter Soil Infiltration Rate Design Volume Must be the depth below the underdrain. Dimensions of pavement can be provided here Porosity of Gravel Bed Gravel Bed Depth Required Surface Area Surface Area Provided Storage Volume Provided Runoff Reduction Techiques/Standard SMPs Total Contributing Area Total Contributing Impervious Area WQv Reduced (RRv) WQv Treated (acres) (acres) cf cf Conservation of Natural Areas RR-1 0.00 0.00 Sheetflow to Riparian Buffers/Filter Strips RR-2 0.00 0.00 Tree Planting/Tree Pit RR-3 0.00 0.00 Disconnection of Rooftop Runoff RR-4 0.00 Vegetated Swale RR-5 0.00 0.00 0 Rain Garden RR-6 0.00 0.00 0 Stormwater Planter RR-7 0.00 0.00 0 Rain Barrel/Cistern RR-8 0.00 0.00 0 Porous Pavement RR-9 0.21 0.21 869 Green Roof (Intensive & Extensive) RR-10 0.00 0.00 0 Infiltration Trench I-1 0.00 0.00 0 0 Infiltration Basin I-2 0.76 0.51 2165 0 Dry Well I-3 0.00 0.00 0 0 Underground Infiltration System I-4 Bioretention & Infiltration Bioretention F-5 0.00 0.00 0 0 Dry swale O-1 0.00 0.00 0 0 Micropool Extended Detention (P-1) P-1 Wet Pond (P-2) P-2 Wet Extended Detention (P-3) P-3 Multiple Pond system (P-4) P-4 Pocket Pond (p-5) P-5 Surface Sand filter (F-1) F-1 Underground Sand filter (F-2) F-2 Perimeter Sand Filter (F-3) F-3 Organic Filter (F-4 F-4 Shallow Wetland (W-1) W-1 Extended Detention Wetland (W-2 W-2 Pond/Wetland System (W-3) W-3 Pocket Wetland (W-4) W-4 Wet Swale (O-2) O-2 →0.00 0.00 0 →0.21 0.21 869 →0.76 0.51 2165 0 →0.00 0.00 0 →0.97 0.72 3,034 0 Impervious Cover √ okay Total Area √ okay Totals by Volume Reduction Totals by Standard SMP w/RRV Totals by Standard SMP Totals ( Area + Volume + all SMPs) Runoff Reduction Volume and Treated volumes Standard SMPs w/RRv CapacityStandard SMPs Area/Volume ReductionTotals by Area Reduction Version 1.8 Last Updated: 11/09/2015 Total Water Quality Volume Calculation WQv(acre-feet) = [(P)(Rv)(A)] /12 Design Point:1 P= 1.20 inch Catchment Number Total Area (Acres) Impervious Area (Acres) Percent Impervious % Rv WQv (ft 3 )Description 1 0.76 0.51 67% 0.65 2,165 Infiltration Basin 2 0.21 0.21 100% 0.95 869 Porous Pavement 3 4 5 6 7 8 9 10 Subtotal (1-30)0.97 0.72 74% 0.72 3,034 Subtotal 1 Total 0.97 0.72 74% 0.72 3,034 Initial WQv Total Contributing Area Contributing Impervious Area (Acre) (Acre) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total Area (Acres) Impervious Area (Acres) Percent Impervious % Runoff Coefficient Rv WQv (ft 3 ) 0.97 0.72 74% 0.72 3,034 0.00 0.00 0.97 0.72 74% 0.72 3,034 0.00 0.97 0.72 74% 0.72 3,034 0 Technique minimum 10,000 sfConservation of Natural Areas WQv reduced by Area Reduction techniques Adjusted WQv after Area Reduction and Rooftop Disconnect Subtract Area Disconnection of Rooftops WQv adjusted after Area Reductions Identify Runoff Reduction Techniques By Area Breakdown of Subcatchments Is this project subject to Chapter 10 of the NYS Design Manual (i.e. WQv is equal to post- development 1 year runoff volume)?...................................................................................... "<<Initial WQv" Recalculate WQv after application of Area Reduction Techniques Riparian Buffers maximum contributing length 75 feet to 150 feet Up to 100 sf directly connected impervious area may be subtracted per treeTree Planting Filter Strips Total Notes E1A E1A E1B E1B E2 E2 EDP1 EX. DESIGN POINT 1 EDP2 EX. DESIGN POINT 2 Routing Diagram for Existing Conditions_Hoffmans Queensbury Prepared by {enter your company name here}, Printed 9/23/2021 HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Subcat Reach Pond Link Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 2HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchment-numbers) 0.437 39 >75% Grass cover, Good, HSG A (E1A, E1B) 0.461 30 Brush, Good, HSG A (E1B, E2) 0.050 98 Pavement (E1B) 0.616 98 Pavement Roofs (E1A) 0.736 30 Woods, Good, HSG A (E1B, E2) Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 3HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 1.634 HSG A E1A, E1B, E2 0.000 HSG B 0.000 HSG C 0.000 HSG D 0.666 Other E1A, E1B Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 4HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Ground Covers (all nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.437 0.000 0.000 0.000 0.000 0.437 >75% Grass cover, Good E1A, E1B 0.461 0.000 0.000 0.000 0.000 0.461 Brush, Good E1B, E2 0.000 0.000 0.000 0.000 0.050 0.050 Pavement E1B 0.000 0.000 0.000 0.000 0.616 0.616 Pavement Roofs E1A 0.736 0.000 0.000 0.000 0.000 0.736 Woods, Good E1B, E2 Type II 24-hr 1 yr Rainfall=2.19"Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 5HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.01 hrs, 3601 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=42,997 sf 62.39% Impervious Runoff Depth=0.51"Subcatchment E1A: E1A Tc=6.0 min CN=76 Runoff=0.86 cfs 0.042 af Runoff Area=14,497 sf 15.04% Impervious Runoff Depth=0.00"Subcatchment E1B: E1B Flow Length=447' Tc=29.0 min CN=42 Runoff=0.00 cfs 0.000 af Runoff Area=42,685 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment E2: E2 Flow Length=350' Tc=27.7 min CN=30 Runoff=0.00 cfs 0.000 af Inflow=0.86 cfs 0.042 afReach EDP1: EX. DESIGN POINT 1 Outflow=0.86 cfs 0.042 af Inflow=0.00 cfs 0.000 afReach EDP2: EX. DESIGN POINT 2 Outflow=0.00 cfs 0.000 af Type II 24-hr 1 yr Rainfall=2.19"Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 6HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment E1A: E1A Runoff = 0.86 cfs @ 11.98 hrs, Volume= 0.042 af, Depth= 0.51" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description * 26,826 98 Pavement Roofs 16,171 39 >75% Grass cover, Good, HSG A 42,997 76 Weighted Average 16,171 37.61% Pervious Area 26,826 62.39% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment E1B: E1B Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description 4,490 30 Woods, Good, HSG A 4,966 30 Brush, Good, HSG A 2,860 39 >75% Grass cover, Good, HSG A * 2,181 98 Pavement 14,497 42 Weighted Average 12,316 84.96% Pervious Area 2,181 15.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.8 100 0.0150 0.06 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 0.9 121 0.0190 2.22 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 2.3 226 0.0100 1.61 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 29.0 447 Total Type II 24-hr 1 yr Rainfall=2.19"Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 7HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment E2: E2 Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description 27,583 30 Woods, Good, HSG A 15,102 30 Brush, Good, HSG A 42,685 30 Weighted Average 42,685 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.8 100 0.0150 0.06 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 1.9 250 0.0180 2.16 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 27.7 350 Total Summary for Reach EDP1: EX. DESIGN POINT 1 Inflow Area = 1.320 ac, 50.45% Impervious, Inflow Depth = 0.39" for 1 yr event Inflow = 0.86 cfs @ 11.98 hrs, Volume= 0.042 af Outflow = 0.86 cfs @ 11.98 hrs, Volume= 0.042 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Summary for Reach EDP2: EX. DESIGN POINT 2 Inflow Area = 0.980 ac, 0.00% Impervious, Inflow Depth = 0.00" for 1 yr event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62"Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 8HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.01 hrs, 3601 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=42,997 sf 62.39% Impervious Runoff Depth=1.45"Subcatchment E1A: E1A Tc=6.0 min CN=76 Runoff=2.57 cfs 0.120 af Runoff Area=14,497 sf 15.04% Impervious Runoff Depth=0.05"Subcatchment E1B: E1B Flow Length=447' Tc=29.0 min CN=42 Runoff=0.00 cfs 0.001 af Runoff Area=42,685 sf 0.00% Impervious Runoff Depth=0.00"Subcatchment E2: E2 Flow Length=350' Tc=27.7 min CN=30 Runoff=0.00 cfs 0.000 af Inflow=2.57 cfs 0.121 afReach EDP1: EX. DESIGN POINT 1 Outflow=2.57 cfs 0.121 af Inflow=0.00 cfs 0.000 afReach EDP2: EX. DESIGN POINT 2 Outflow=0.00 cfs 0.000 af Type II 24-hr 10 yr Rainfall=3.62"Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 9HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment E1A: E1A Runoff = 2.57 cfs @ 11.98 hrs, Volume= 0.120 af, Depth= 1.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description * 26,826 98 Pavement Roofs 16,171 39 >75% Grass cover, Good, HSG A 42,997 76 Weighted Average 16,171 37.61% Pervious Area 26,826 62.39% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment E1B: E1B Runoff = 0.00 cfs @ 17.82 hrs, Volume= 0.001 af, Depth= 0.05" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description 4,490 30 Woods, Good, HSG A 4,966 30 Brush, Good, HSG A 2,860 39 >75% Grass cover, Good, HSG A * 2,181 98 Pavement 14,497 42 Weighted Average 12,316 84.96% Pervious Area 2,181 15.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.8 100 0.0150 0.06 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 0.9 121 0.0190 2.22 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 2.3 226 0.0100 1.61 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 29.0 447 Total Type II 24-hr 10 yr Rainfall=3.62"Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 10HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment E2: E2 Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description 27,583 30 Woods, Good, HSG A 15,102 30 Brush, Good, HSG A 42,685 30 Weighted Average 42,685 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.8 100 0.0150 0.06 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 1.9 250 0.0180 2.16 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 27.7 350 Total Summary for Reach EDP1: EX. DESIGN POINT 1 Inflow Area = 1.320 ac, 50.45% Impervious, Inflow Depth = 1.10" for 10 yr event Inflow = 2.57 cfs @ 11.98 hrs, Volume= 0.121 af Outflow = 2.57 cfs @ 11.98 hrs, Volume= 0.121 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Summary for Reach EDP2: EX. DESIGN POINT 2 Inflow Area = 0.980 ac, 0.00% Impervious, Inflow Depth = 0.00" for 10 yr event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99"Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 11HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.01 hrs, 3601 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=42,997 sf 62.39% Impervious Runoff Depth=3.37"Subcatchment E1A: E1A Tc=6.0 min CN=76 Runoff=5.90 cfs 0.277 af Runoff Area=14,497 sf 15.04% Impervious Runoff Depth=0.61"Subcatchment E1B: E1B Flow Length=447' Tc=29.0 min CN=42 Runoff=0.09 cfs 0.017 af Runoff Area=42,685 sf 0.00% Impervious Runoff Depth=0.07"Subcatchment E2: E2 Flow Length=350' Tc=27.7 min CN=30 Runoff=0.01 cfs 0.006 af Inflow=5.90 cfs 0.294 afReach EDP1: EX. DESIGN POINT 1 Outflow=5.90 cfs 0.294 af Inflow=0.01 cfs 0.006 afReach EDP2: EX. DESIGN POINT 2 Outflow=0.01 cfs 0.006 af Type II 24-hr 100 yr Rainfall=5.99"Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 12HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment E1A: E1A Runoff = 5.90 cfs @ 11.97 hrs, Volume= 0.277 af, Depth= 3.37" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description * 26,826 98 Pavement Roofs 16,171 39 >75% Grass cover, Good, HSG A 42,997 76 Weighted Average 16,171 37.61% Pervious Area 26,826 62.39% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment E1B: E1B Runoff = 0.09 cfs @ 12.34 hrs, Volume= 0.017 af, Depth= 0.61" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description 4,490 30 Woods, Good, HSG A 4,966 30 Brush, Good, HSG A 2,860 39 >75% Grass cover, Good, HSG A * 2,181 98 Pavement 14,497 42 Weighted Average 12,316 84.96% Pervious Area 2,181 15.04% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.8 100 0.0150 0.06 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 0.9 121 0.0190 2.22 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 2.3 226 0.0100 1.61 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 29.0 447 Total Type II 24-hr 100 yr Rainfall=5.99"Existing Conditions_Hoffmans Queensbury Printed 9/23/2021Prepared by {enter your company name here} Page 13HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment E2: E2 Runoff = 0.01 cfs @ 18.07 hrs, Volume= 0.006 af, Depth= 0.07" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description 27,583 30 Woods, Good, HSG A 15,102 30 Brush, Good, HSG A 42,685 30 Weighted Average 42,685 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.8 100 0.0150 0.06 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 1.9 250 0.0180 2.16 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 27.7 350 Total Summary for Reach EDP1: EX. DESIGN POINT 1 Inflow Area = 1.320 ac, 50.45% Impervious, Inflow Depth = 2.68" for 100 yr event Inflow = 5.90 cfs @ 11.97 hrs, Volume= 0.294 af Outflow = 5.90 cfs @ 11.97 hrs, Volume= 0.294 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Summary for Reach EDP2: EX. DESIGN POINT 2 Inflow Area = 0.980 ac, 0.00% Impervious, Inflow Depth = 0.07" for 100 yr event Inflow = 0.01 cfs @ 18.07 hrs, Volume= 0.006 af Outflow = 0.01 cfs @ 18.07 hrs, Volume= 0.006 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs P1A P1A P1B P1B P1C P1C P1D P1C P1E P1E P1F P1F P1G P1G P2 P2A PDP1 PROP. DESIGN POINT 1 PDP2 PROP. DESIGN POINT 2 1P Forebay 2P Inf Basin 3P Porous Pvmt 4P Porous Pvmt 5P Det Basin Routing Diagram for REV2 Proposed Conditions_Hoffmans Queensbury Prepared by {enter your company name here}, Printed 10/8/2021 HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Subcat Reach Pond Link REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 2HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchment-numbers) 0.912 39 >75% Grass cover, Good, HSG A (P1A, P1B, P1C, P1F, P1G, P2) 0.223 98 Pavement (P1D, P1E, P2) 0.867 98 Pavement Roofs (P1A, P1B, P1C, P1G) 0.298 30 Woods, Good, HSG A (P2) REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 3HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 1.210 HSG A P1A, P1B, P1C, P1F, P1G, P2 0.000 HSG B 0.000 HSG C 0.000 HSG D 1.090 Other P1A, P1B, P1C, P1D, P1E, P1G, P2 REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 4HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Ground Covers (all nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.912 0.000 0.000 0.000 0.000 0.912 >75% Grass cover, Good P1A, P1B, P1C, P1F, P1G, P2 0.000 0.000 0.000 0.000 0.223 0.223 Pavement P1D, P1E, P2 0.000 0.000 0.000 0.000 0.867 0.867 Pavement Roofs P1A, P1B, P1C, P1G 0.298 0.000 0.000 0.000 0.000 0.298 Woods, Good P2 Type II 24-hr 1 yr Rainfall=2.19"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 5HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment P1A: P1A Runoff = 0.40 cfs @ 11.99 hrs, Volume= 0.020 af, Depth= 0.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description * 13,254 98 Pavement Roofs 8,516 39 >75% Grass cover, Good, HSG A 21,770 75 Weighted Average 8,516 39.12% Pervious Area 13,254 60.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1B: P1B Runoff = 0.47 cfs @ 11.98 hrs, Volume= 0.022 af, Depth= 1.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description * 9,173 98 Pavement Roofs 2,372 39 >75% Grass cover, Good, HSG A 11,545 86 Weighted Average 2,372 20.55% Pervious Area 9,173 79.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1C: P1C Runoff = 0.12 cfs @ 12.00 hrs, Volume= 0.008 af, Depth= 0.24" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description * 8,913 98 Pavement Roofs 9,762 39 >75% Grass cover, Good, HSG A 18,675 67 Weighted Average 9,762 52.27% Pervious Area 8,913 47.73% Impervious Area Type II 24-hr 1 yr Rainfall=2.19"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 6HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1D: P1C Runoff = 0.32 cfs @ 11.97 hrs, Volume= 0.017 af, Depth= 1.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description * 4,574 98 Pavement 4,574 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1E: P1E Runoff = 0.32 cfs @ 11.97 hrs, Volume= 0.017 af, Depth= 1.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description * 4,574 98 Pavement 4,574 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1F: P1F Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description 2,642 39 >75% Grass cover, Good, HSG A 2,642 100.00% Pervious Area Type II 24-hr 1 yr Rainfall=2.19"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 7HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1G: P1G Runoff = 0.06 cfs @ 12.01 hrs, Volume= 0.005 af, Depth= 0.19" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description * 6,432 98 Pavement Roofs 8,206 39 >75% Grass cover, Good, HSG A 14,638 65 Weighted Average 8,206 56.06% Pervious Area 6,432 43.94% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P2: P2A Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 1 yr Rainfall=2.19" Area (sf) CN Description * 550 98 Pavement 12,974 30 Woods, Good, HSG A 8,240 39 >75% Grass cover, Good, HSG A 21,764 35 Weighted Average 21,214 97.47% Pervious Area 550 2.53% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.3 100 0.0100 0.06 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 1.3 150 0.0150 1.97 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 31.6 250 Total Type II 24-hr 1 yr Rainfall=2.19"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 8HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Reach PDP1: PROP. DESIGN POINT 1 Inflow Area = 1.800 ac, 59.83% Impervious, Inflow Depth = 0.09" for 1 yr event Inflow = 0.18 cfs @ 12.01 hrs, Volume= 0.014 af Outflow = 0.18 cfs @ 12.01 hrs, Volume= 0.014 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Summary for Reach PDP2: PROP. DESIGN POINT 2 Inflow Area = 0.500 ac, 2.53% Impervious, Inflow Depth = 0.00" for 1 yr event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Summary for Pond 1P: Forebay Inflow Area = 0.500 ac, 60.88% Impervious, Inflow Depth = 0.48" for 1 yr event Inflow = 0.40 cfs @ 11.99 hrs, Volume= 0.020 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 100%, Lag= 0.0 min Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 474.19' @ 24.34 hrs Surf.Area= 1,066 sf Storage= 867 cf Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= (not calculated: no outflow) Volume Invert Avail.Storage Storage Description #1 473.00' 1,945 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 473.00 410 0 0 474.00 945 678 678 475.00 1,590 1,268 1,945 Device Routing Invert Outlet Devices #1 Primary 474.60'5.0' long x 5.0' 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) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=473.00' TW=473.00' (Dynamic Tailwater) 1=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type II 24-hr 1 yr Rainfall=2.19"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 9HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Pond 2P: Inf Basin Inflow Area = 0.765 ac, 67.32% Impervious, Inflow Depth = 0.34" for 1 yr event Inflow = 0.47 cfs @ 11.98 hrs, Volume= 0.022 af Outflow = 0.23 cfs @ 12.06 hrs, Volume= 0.022 af, Atten= 51%, Lag= 5.3 min Discarded = 0.23 cfs @ 12.06 hrs, Volume= 0.022 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 473.09' @ 12.06 hrs Surf.Area= 1,257 sf Storage= 106 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 1.4 min ( 838.3 - 837.0 ) Volume Invert Avail.Storage Storage Description #1 473.00' 8,110 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 473.00 1,196 0 0 474.00 1,903 1,550 1,550 475.00 2,668 2,286 3,835 476.00 5,882 4,275 8,110 Device Routing Invert Outlet Devices #1 Discarded 473.00'8.000 in/hr Exfiltration over Surface area #2 Primary 475.25'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.23 cfs @ 12.06 hrs HW=473.09' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.23 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=473.00' TW=0.00' (Dynamic Tailwater) 2=Orifice/Grate ( Controls 0.00 cfs) Summary for Pond 3P: Porous Pvmt Inflow Area = 0.105 ac,100.00% Impervious, Inflow Depth = 1.96" for 1 yr event Inflow = 0.32 cfs @ 11.97 hrs, Volume= 0.017 af Outflow = 0.10 cfs @ 12.09 hrs, Volume= 0.014 af, Atten= 69%, Lag= 7.4 min Discarded = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.10 cfs @ 12.09 hrs, Volume= 0.014 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 477.46' @ 12.09 hrs Surf.Area= 2,703 sf Storage= 389 cf Plug-Flow detention time= 212.3 min calculated for 0.014 af (84% of inflow) Center-of-Mass det. time= 141.4 min ( 902.8 - 761.4 ) Type II 24-hr 1 yr Rainfall=2.19"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 10HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Volume Invert Avail.Storage Storage Description #1 477.10' 2,595 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Voids Inc.Store Cum.Store (feet) (sq-ft) (%) (cubic-feet) (cubic-feet) 477.10 2,703 0.0 0 0 477.11 2,703 40.0 11 11 479.50 2,703 40.0 2,584 2,595 Device Routing Invert Outlet Devices #1 Discarded 477.10'8.000 in/hr Exfiltration over Surface area above 477.10' Excluded Surface area = 2,703 sf #2 Primary 477.20'4.0" Round Culvert L= 10.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 477.20' / 477.00' S= 0.0200 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.09 sf Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=477.10' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Primary OutFlow Max=0.10 cfs @ 12.09 hrs HW=477.46' TW=475.41' (Dynamic Tailwater) 2=Culvert (Inlet Controls 0.10 cfs @ 1.37 fps) Summary for Pond 4P: Porous Pvmt Inflow Area = 0.105 ac,100.00% Impervious, Inflow Depth = 1.96" for 1 yr event Inflow = 0.32 cfs @ 11.97 hrs, Volume= 0.017 af Outflow = 0.10 cfs @ 12.09 hrs, Volume= 0.014 af, Atten= 69%, Lag= 7.4 min Discarded = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.10 cfs @ 12.09 hrs, Volume= 0.014 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 477.46' @ 12.09 hrs Surf.Area= 2,703 sf Storage= 389 cf Plug-Flow detention time= 212.3 min calculated for 0.014 af (84% of inflow) Center-of-Mass det. time= 141.4 min ( 902.8 - 761.4 ) Volume Invert Avail.Storage Storage Description #1 477.10' 2,595 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Voids Inc.Store Cum.Store (feet) (sq-ft) (%) (cubic-feet) (cubic-feet) 477.10 2,703 0.0 0 0 477.11 2,703 40.0 11 11 479.50 2,703 40.0 2,584 2,595 Device Routing Invert Outlet Devices #1 Discarded 477.10'8.000 in/hr Exfiltration over Surface area above 477.10' Excluded Surface area = 2,703 sf #2 Primary 477.20'4.0" Round Culvert L= 10.0' CMP, projecting, no headwall, Ke= 0.900 Type II 24-hr 1 yr Rainfall=2.19"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 11HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Inlet / Outlet Invert= 477.20' / 477.00' S= 0.0200 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.09 sf Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=477.10' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Primary OutFlow Max=0.10 cfs @ 12.09 hrs HW=477.46' TW=475.41' (Dynamic Tailwater) 2=Culvert (Inlet Controls 0.10 cfs @ 1.37 fps) Summary for Pond 5P: Det Basin Inflow Area = 0.271 ac, 77.59% Impervious, Inflow Depth > 1.28" for 1 yr event Inflow = 0.20 cfs @ 12.09 hrs, Volume= 0.029 af Outflow = 0.09 cfs @ 12.82 hrs, Volume= 0.029 af, Atten= 54%, Lag= 43.8 min Discarded = 0.09 cfs @ 12.82 hrs, Volume= 0.029 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 475.80' @ 12.82 hrs Surf.Area= 496 sf Storage= 245 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 23.1 min ( 925.9 - 902.8 ) Volume Invert Avail.Storage Storage Description #1 475.00' 2,530 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 475.00 118 0 0 476.00 593 356 356 477.00 1,098 846 1,201 478.00 1,559 1,329 2,530 Device Routing Invert Outlet Devices #1 Discarded 475.00'8.000 in/hr Exfiltration over Surface area #2 Primary 477.10'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.09 cfs @ 12.82 hrs HW=475.80' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.09 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=475.00' TW=0.00' (Dynamic Tailwater) 2=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 10 yr Rainfall=3.62"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 12HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment P1A: P1A Runoff = 1.24 cfs @ 11.98 hrs, Volume= 0.058 af, Depth= 1.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description * 13,254 98 Pavement Roofs 8,516 39 >75% Grass cover, Good, HSG A 21,770 75 Weighted Average 8,516 39.12% Pervious Area 13,254 60.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1B: P1B Runoff = 1.03 cfs @ 11.97 hrs, Volume= 0.049 af, Depth= 2.20" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description * 9,173 98 Pavement Roofs 2,372 39 >75% Grass cover, Good, HSG A 11,545 86 Weighted Average 2,372 20.55% Pervious Area 9,173 79.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1C: P1C Runoff = 0.68 cfs @ 11.98 hrs, Volume= 0.033 af, Depth= 0.92" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description * 8,913 98 Pavement Roofs 9,762 39 >75% Grass cover, Good, HSG A 18,675 67 Weighted Average 9,762 52.27% Pervious Area 8,913 47.73% Impervious Area Type II 24-hr 10 yr Rainfall=3.62"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 13HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1D: P1C Runoff = 0.54 cfs @ 11.97 hrs, Volume= 0.030 af, Depth= 3.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description * 4,574 98 Pavement 4,574 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1E: P1E Runoff = 0.54 cfs @ 11.97 hrs, Volume= 0.030 af, Depth= 3.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description * 4,574 98 Pavement 4,574 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1F: P1F Runoff = 0.00 cfs @ 24.01 hrs, Volume= 0.000 af, Depth= 0.01" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description 2,642 39 >75% Grass cover, Good, HSG A 2,642 100.00% Pervious Area Type II 24-hr 10 yr Rainfall=3.62"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 14HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1G: P1G Runoff = 0.46 cfs @ 11.99 hrs, Volume= 0.023 af, Depth= 0.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description * 6,432 98 Pavement Roofs 8,206 39 >75% Grass cover, Good, HSG A 14,638 65 Weighted Average 8,206 56.06% Pervious Area 6,432 43.94% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P2: P2A Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 10 yr Rainfall=3.62" Area (sf) CN Description * 550 98 Pavement 12,974 30 Woods, Good, HSG A 8,240 39 >75% Grass cover, Good, HSG A 21,764 35 Weighted Average 21,214 97.47% Pervious Area 550 2.53% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.3 100 0.0100 0.06 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 1.3 150 0.0150 1.97 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 31.6 250 Total Type II 24-hr 10 yr Rainfall=3.62"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 15HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Reach PDP1: PROP. DESIGN POINT 1 Inflow Area = 1.800 ac, 59.83% Impervious, Inflow Depth = 0.37" for 10 yr event Inflow = 1.14 cfs @ 11.98 hrs, Volume= 0.056 af Outflow = 1.14 cfs @ 11.98 hrs, Volume= 0.056 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Summary for Reach PDP2: PROP. DESIGN POINT 2 Inflow Area = 0.500 ac, 2.53% Impervious, Inflow Depth = 0.00" for 10 yr event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Summary for Pond 1P: Forebay Inflow Area = 0.500 ac, 60.88% Impervious, Inflow Depth = 1.39" for 10 yr event Inflow = 1.24 cfs @ 11.98 hrs, Volume= 0.058 af Outflow = 0.08 cfs @ 12.99 hrs, Volume= 0.027 af, Atten= 94%, Lag= 60.7 min Primary = 0.08 cfs @ 12.99 hrs, Volume= 0.027 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 474.63' @ 12.99 hrs Surf.Area= 1,354 sf Storage= 1,407 cf Plug-Flow detention time= 299.9 min calculated for 0.027 af (46% of inflow) Center-of-Mass det. time= 166.3 min ( 1,014.6 - 848.2 ) Volume Invert Avail.Storage Storage Description #1 473.00' 1,945 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 473.00 410 0 0 474.00 945 678 678 475.00 1,590 1,268 1,945 Device Routing Invert Outlet Devices #1 Primary 474.60'5.0' long x 5.0' 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) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Primary OutFlow Max=0.08 cfs @ 12.99 hrs HW=474.63' TW=473.06' (Dynamic Tailwater) 1=Broad-Crested Rectangular Weir (Weir Controls 0.08 cfs @ 0.44 fps) Type II 24-hr 10 yr Rainfall=3.62"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 16HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Pond 2P: Inf Basin Inflow Area = 0.765 ac, 67.32% Impervious, Inflow Depth = 1.18" for 10 yr event Inflow = 1.03 cfs @ 11.97 hrs, Volume= 0.075 af Outflow = 0.27 cfs @ 12.11 hrs, Volume= 0.075 af, Atten= 74%, Lag= 8.1 min Discarded = 0.27 cfs @ 12.11 hrs, Volume= 0.075 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 473.38' @ 12.11 hrs Surf.Area= 1,462 sf Storage= 500 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 6.4 min ( 891.3 - 884.9 ) Volume Invert Avail.Storage Storage Description #1 473.00' 8,110 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 473.00 1,196 0 0 474.00 1,903 1,550 1,550 475.00 2,668 2,286 3,835 476.00 5,882 4,275 8,110 Device Routing Invert Outlet Devices #1 Discarded 473.00'8.000 in/hr Exfiltration over Surface area #2 Primary 475.25'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.27 cfs @ 12.11 hrs HW=473.38' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.27 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=473.00' TW=0.00' (Dynamic Tailwater) 2=Orifice/Grate ( Controls 0.00 cfs) Summary for Pond 3P: Porous Pvmt Inflow Area = 0.105 ac,100.00% Impervious, Inflow Depth = 3.39" for 10 yr event Inflow = 0.54 cfs @ 11.97 hrs, Volume= 0.030 af Outflow = 0.17 cfs @ 12.09 hrs, Volume= 0.027 af, Atten= 68%, Lag= 7.3 min Discarded = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.17 cfs @ 12.09 hrs, Volume= 0.027 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 477.64' @ 12.09 hrs Surf.Area= 2,703 sf Storage= 579 cf Plug-Flow detention time= 164.4 min calculated for 0.027 af (91% of inflow) Center-of-Mass det. time= 114.5 min ( 864.4 - 749.9 ) Type II 24-hr 10 yr Rainfall=3.62"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 17HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Volume Invert Avail.Storage Storage Description #1 477.10' 2,595 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Voids Inc.Store Cum.Store (feet) (sq-ft) (%) (cubic-feet) (cubic-feet) 477.10 2,703 0.0 0 0 477.11 2,703 40.0 11 11 479.50 2,703 40.0 2,584 2,595 Device Routing Invert Outlet Devices #1 Discarded 477.10'8.000 in/hr Exfiltration over Surface area above 477.10' Excluded Surface area = 2,703 sf #2 Primary 477.20'4.0" Round Culvert L= 10.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 477.20' / 477.00' S= 0.0200 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.09 sf Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=477.10' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Primary OutFlow Max=0.17 cfs @ 12.09 hrs HW=477.64' TW=475.78' (Dynamic Tailwater) 2=Culvert (Inlet Controls 0.17 cfs @ 1.97 fps) Summary for Pond 4P: Porous Pvmt Inflow Area = 0.105 ac,100.00% Impervious, Inflow Depth = 3.39" for 10 yr event Inflow = 0.54 cfs @ 11.97 hrs, Volume= 0.030 af Outflow = 0.17 cfs @ 12.09 hrs, Volume= 0.027 af, Atten= 68%, Lag= 7.3 min Discarded = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.17 cfs @ 12.09 hrs, Volume= 0.027 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 477.64' @ 12.09 hrs Surf.Area= 2,703 sf Storage= 579 cf Plug-Flow detention time= 164.4 min calculated for 0.027 af (91% of inflow) Center-of-Mass det. time= 114.5 min ( 864.4 - 749.9 ) Volume Invert Avail.Storage Storage Description #1 477.10' 2,595 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Voids Inc.Store Cum.Store (feet) (sq-ft) (%) (cubic-feet) (cubic-feet) 477.10 2,703 0.0 0 0 477.11 2,703 40.0 11 11 479.50 2,703 40.0 2,584 2,595 Device Routing Invert Outlet Devices #1 Discarded 477.10'8.000 in/hr Exfiltration over Surface area above 477.10' Excluded Surface area = 2,703 sf #2 Primary 477.20'4.0" Round Culvert L= 10.0' CMP, projecting, no headwall, Ke= 0.900 Type II 24-hr 10 yr Rainfall=3.62"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 18HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Inlet / Outlet Invert= 477.20' / 477.00' S= 0.0200 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.09 sf Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=477.10' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Primary OutFlow Max=0.17 cfs @ 12.09 hrs HW=477.64' TW=475.78' (Dynamic Tailwater) 2=Culvert (Inlet Controls 0.17 cfs @ 1.97 fps) Summary for Pond 5P: Det Basin Inflow Area = 0.271 ac, 77.59% Impervious, Inflow Depth > 2.38" for 10 yr event Inflow = 0.34 cfs @ 12.09 hrs, Volume= 0.054 af Outflow = 0.15 cfs @ 12.97 hrs, Volume= 0.054 af, Atten= 58%, Lag= 52.8 min Discarded = 0.15 cfs @ 12.97 hrs, Volume= 0.054 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 476.38' @ 12.97 hrs Surf.Area= 784 sf Storage= 616 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 39.7 min ( 904.7 - 865.0 ) Volume Invert Avail.Storage Storage Description #1 475.00' 2,530 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 475.00 118 0 0 476.00 593 356 356 477.00 1,098 846 1,201 478.00 1,559 1,329 2,530 Device Routing Invert Outlet Devices #1 Discarded 475.00'8.000 in/hr Exfiltration over Surface area #2 Primary 477.10'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.15 cfs @ 12.97 hrs HW=476.38' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=475.00' TW=0.00' (Dynamic Tailwater) 2=Orifice/Grate ( Controls 0.00 cfs) Type II 24-hr 100 yr Rainfall=5.99"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 19HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment P1A: P1A Runoff = 2.91 cfs @ 11.97 hrs, Volume= 0.136 af, Depth= 3.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description * 13,254 98 Pavement Roofs 8,516 39 >75% Grass cover, Good, HSG A 21,770 75 Weighted Average 8,516 39.12% Pervious Area 13,254 60.88% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1B: P1B Runoff = 1.97 cfs @ 11.97 hrs, Volume= 0.097 af, Depth= 4.40" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description * 9,173 98 Pavement Roofs 2,372 39 >75% Grass cover, Good, HSG A 11,545 86 Weighted Average 2,372 20.55% Pervious Area 9,173 79.45% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1C: P1C Runoff = 1.94 cfs @ 11.98 hrs, Volume= 0.090 af, Depth= 2.52" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description * 8,913 98 Pavement Roofs 9,762 39 >75% Grass cover, Good, HSG A 18,675 67 Weighted Average 9,762 52.27% Pervious Area 8,913 47.73% Impervious Area Type II 24-hr 100 yr Rainfall=5.99"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 20HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1D: P1C Runoff = 0.90 cfs @ 11.97 hrs, Volume= 0.050 af, Depth= 5.75" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description * 4,574 98 Pavement 4,574 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1E: P1E Runoff = 0.90 cfs @ 11.97 hrs, Volume= 0.050 af, Depth= 5.75" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description * 4,574 98 Pavement 4,574 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1F: P1F Runoff = 0.02 cfs @ 12.02 hrs, Volume= 0.002 af, Depth= 0.44" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description 2,642 39 >75% Grass cover, Good, HSG A 2,642 100.00% Pervious Area Type II 24-hr 100 yr Rainfall=5.99"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 21HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P1G: P1G Runoff = 1.41 cfs @ 11.98 hrs, Volume= 0.066 af, Depth= 2.34" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description * 6,432 98 Pavement Roofs 8,206 39 >75% Grass cover, Good, HSG A 14,638 65 Weighted Average 8,206 56.06% Pervious Area 6,432 43.94% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment P2: P2A Runoff = 0.02 cfs @ 12.81 hrs, Volume= 0.010 af, Depth= 0.25" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type II 24-hr 100 yr Rainfall=5.99" Area (sf) CN Description * 550 98 Pavement 12,974 30 Woods, Good, HSG A 8,240 39 >75% Grass cover, Good, HSG A 21,764 35 Weighted Average 21,214 97.47% Pervious Area 550 2.53% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.3 100 0.0100 0.06 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.80" 1.3 150 0.0150 1.97 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 31.6 250 Total Type II 24-hr 100 yr Rainfall=5.99"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 22HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Reach PDP1: PROP. DESIGN POINT 1 Inflow Area = 1.800 ac, 59.83% Impervious, Inflow Depth = 1.04" for 100 yr event Inflow = 3.35 cfs @ 11.98 hrs, Volume= 0.156 af Outflow = 3.35 cfs @ 11.98 hrs, Volume= 0.156 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Summary for Reach PDP2: PROP. DESIGN POINT 2 Inflow Area = 0.500 ac, 2.53% Impervious, Inflow Depth = 0.25" for 100 yr event Inflow = 0.02 cfs @ 12.81 hrs, Volume= 0.010 af Outflow = 0.02 cfs @ 12.81 hrs, Volume= 0.010 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Summary for Pond 1P: Forebay Inflow Area = 0.500 ac, 60.88% Impervious, Inflow Depth = 3.27" for 100 yr event Inflow = 2.91 cfs @ 11.97 hrs, Volume= 0.136 af Outflow = 2.47 cfs @ 12.02 hrs, Volume= 0.105 af, Atten= 15%, Lag= 2.5 min Primary = 2.47 cfs @ 12.02 hrs, Volume= 0.105 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 474.94' @ 12.02 hrs Surf.Area= 1,554 sf Storage= 1,857 cf Plug-Flow detention time= 138.8 min calculated for 0.105 af (77% of inflow) Center-of-Mass det. time= 48.5 min ( 871.9 - 823.4 ) Volume Invert Avail.Storage Storage Description #1 473.00' 1,945 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 473.00 410 0 0 474.00 945 678 678 475.00 1,590 1,268 1,945 Device Routing Invert Outlet Devices #1 Primary 474.60'5.0' long x 5.0' 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) 2.34 2.50 2.70 2.68 2.68 2.66 2.65 2.65 2.65 2.65 2.67 2.66 2.68 2.70 2.74 2.79 2.88 Primary OutFlow Max=2.47 cfs @ 12.02 hrs HW=474.94' TW=474.07' (Dynamic Tailwater) 1=Broad-Crested Rectangular Weir (Weir Controls 2.47 cfs @ 1.44 fps) Type II 24-hr 100 yr Rainfall=5.99"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 23HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Summary for Pond 2P: Inf Basin Inflow Area = 0.765 ac, 67.32% Impervious, Inflow Depth = 3.17" for 100 yr event Inflow = 4.23 cfs @ 12.00 hrs, Volume= 0.202 af Outflow = 0.45 cfs @ 12.48 hrs, Volume= 0.202 af, Atten= 89%, Lag= 29.0 min Discarded = 0.45 cfs @ 12.48 hrs, Volume= 0.202 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 474.67' @ 12.48 hrs Surf.Area= 2,419 sf Storage= 3,007 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 56.2 min ( 891.0 - 834.8 ) Volume Invert Avail.Storage Storage Description #1 473.00' 8,110 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 473.00 1,196 0 0 474.00 1,903 1,550 1,550 475.00 2,668 2,286 3,835 476.00 5,882 4,275 8,110 Device Routing Invert Outlet Devices #1 Discarded 473.00'8.000 in/hr Exfiltration over Surface area #2 Primary 475.25'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.45 cfs @ 12.48 hrs HW=474.67' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.45 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=473.00' TW=0.00' (Dynamic Tailwater) 2=Orifice/Grate ( Controls 0.00 cfs) Summary for Pond 3P: Porous Pvmt Inflow Area = 0.105 ac,100.00% Impervious, Inflow Depth = 5.75" for 100 yr event Inflow = 0.90 cfs @ 11.97 hrs, Volume= 0.050 af Outflow = 0.24 cfs @ 12.10 hrs, Volume= 0.048 af, Atten= 74%, Lag= 8.1 min Discarded = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.24 cfs @ 12.10 hrs, Volume= 0.048 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 477.92' @ 12.10 hrs Surf.Area= 2,703 sf Storage= 883 cf Plug-Flow detention time= 129.1 min calculated for 0.048 af (94% of inflow) Center-of-Mass det. time= 96.1 min ( 837.1 - 741.0 ) Type II 24-hr 100 yr Rainfall=5.99"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 24HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Volume Invert Avail.Storage Storage Description #1 477.10' 2,595 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Voids Inc.Store Cum.Store (feet) (sq-ft) (%) (cubic-feet) (cubic-feet) 477.10 2,703 0.0 0 0 477.11 2,703 40.0 11 11 479.50 2,703 40.0 2,584 2,595 Device Routing Invert Outlet Devices #1 Discarded 477.10'8.000 in/hr Exfiltration over Surface area above 477.10' Excluded Surface area = 2,703 sf #2 Primary 477.20'4.0" Round Culvert L= 10.0' CMP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 477.20' / 477.00' S= 0.0200 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.09 sf Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=477.10' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Primary OutFlow Max=0.24 cfs @ 12.10 hrs HW=477.92' TW=476.17' (Dynamic Tailwater) 2=Culvert (Barrel Controls 0.24 cfs @ 2.71 fps) Summary for Pond 4P: Porous Pvmt Inflow Area = 0.105 ac,100.00% Impervious, Inflow Depth = 5.75" for 100 yr event Inflow = 0.90 cfs @ 11.97 hrs, Volume= 0.050 af Outflow = 0.24 cfs @ 12.10 hrs, Volume= 0.048 af, Atten= 74%, Lag= 8.1 min Discarded = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.24 cfs @ 12.10 hrs, Volume= 0.048 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 477.92' @ 12.10 hrs Surf.Area= 2,703 sf Storage= 883 cf Plug-Flow detention time= 129.1 min calculated for 0.048 af (94% of inflow) Center-of-Mass det. time= 96.1 min ( 837.1 - 741.0 ) Volume Invert Avail.Storage Storage Description #1 477.10' 2,595 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Voids Inc.Store Cum.Store (feet) (sq-ft) (%) (cubic-feet) (cubic-feet) 477.10 2,703 0.0 0 0 477.11 2,703 40.0 11 11 479.50 2,703 40.0 2,584 2,595 Device Routing Invert Outlet Devices #1 Discarded 477.10'8.000 in/hr Exfiltration over Surface area above 477.10' Excluded Surface area = 2,703 sf #2 Primary 477.20'4.0" Round Culvert L= 10.0' CMP, projecting, no headwall, Ke= 0.900 Type II 24-hr 100 yr Rainfall=5.99"REV2 Proposed Conditions_Hoffmans Queensbury Printed 10/8/2021Prepared by {enter your company name here} Page 25HydroCAD® 10.00-20 s/n 07427 © 2017 HydroCAD Software Solutions LLC Inlet / Outlet Invert= 477.20' / 477.00' S= 0.0200 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.09 sf Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=477.10' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Primary OutFlow Max=0.24 cfs @ 12.10 hrs HW=477.92' TW=476.17' (Dynamic Tailwater) 2=Culvert (Barrel Controls 0.24 cfs @ 2.71 fps) Summary for Pond 5P: Det Basin Inflow Area = 0.271 ac, 77.59% Impervious, Inflow Depth > 4.32" for 100 yr event Inflow = 0.49 cfs @ 12.07 hrs, Volume= 0.097 af Outflow = 0.21 cfs @ 13.33 hrs, Volume= 0.097 af, Atten= 57%, Lag= 75.6 min Discarded = 0.21 cfs @ 13.33 hrs, Volume= 0.097 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 477.04' @ 13.33 hrs Surf.Area= 1,116 sf Storage= 1,244 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 58.4 min ( 898.3 - 840.0 ) Volume Invert Avail.Storage Storage Description #1 475.00' 2,530 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 475.00 118 0 0 476.00 593 356 356 477.00 1,098 846 1,201 478.00 1,559 1,329 2,530 Device Routing Invert Outlet Devices #1 Discarded 475.00'8.000 in/hr Exfiltration over Surface area #2 Primary 477.10'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.21 cfs @ 13.33 hrs HW=477.04' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.21 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=475.00' TW=0.00' (Dynamic Tailwater) 2=Orifice/Grate ( Controls 0.00 cfs) C.T. MALE ASSOCIATES APPENDIX F Erosion and Sediment Control Plan and Details FFE:477.83 FFE:478.00 FFE:478.00 FFE:477.67 FFE:478.13 W W W W SWEET ROA D SS SS FFE:478.00 TRENCH DRAIN TF=477.90 TRENCH DRAIN TF=477.57 TC=480.00 BC=479.50 TC=480.00 BC=479.50 TC=480.85 BC=480.35 TC=480.00 BC=479.50 TC=480.00 BC=479.50 TC=479.71 BC=479.21 TC=478.25 BC=477.75 TC=478.25 BC=477.75 ST CB1 TF=477.00 CB3 TF=476.50 STSTSTSTSTSTOS1 TF=475.25 CB2 TF=479.25 TC=477.70 BC=477.20 TC=477.75 BC=477.25 TC=477.25 BC=476.75 TC=477.75 BC=477.25 TC=477.75 BC=477.25 TC=477.75 BC=477.25 TC=477. 5 0 BC=477. 0 0 TC=477.35 BC=476.85 TC=477.35 BC=476.85 TC=477.35 BC=476.85 TC=477.10 BC=476.60 TC=477.75 BC=477.25 TC=478.25 BC=477.75 TC=478.00 BC=477.50 TC=478.45 BC=477.95 TC=478.85 BC=477.35 TC=477.25 BC=476.75 TC=476.98 BC=476.49 HTU1 TF=478.25 HTU2 TF=477.25 SILT FENCE, TYP. EROSION CONTROL BLANKET TO BE USED ON ALL SLOPES 3H:1V OR STEEPER, TYP. INLET PROTECTION, TYP. INLET PROTECTION, TYP. STABILIZED CONSTRUCTION ENTRANCE CONCRETE WASHOUT ST ST ST ST CB4 TF=476.56 CB5 TF=476.30 OS2 TF=477.10 SILT FENCE, TYP. 480.00 477.95 476.25 476.25 475.18 ME 475.25 ME 475.20 ME 477.00 476.90 476.25 4 7 7 478476 475 474 476 478 479480 478 478478 4 7 9 4794 7 9 477 476 477 476 475 477 477 4 7 8 480480478479477480481 473 476 477 475 474 475 478 477 476 475 477473 474 476.00 TC=479.71 BC=479.21 TC=477.05 BC=476.55 TC=477. 2 5 BC=476. 7 5 476.90 474.60 474.60 WEEKS RO A D TOWN ROA D NEW YORK STATE ROUTE NO. 9- S.H. 417ROW VARIESWV WV WV WV WV WV WV WVSMH SMH SMH SMH HYD TPED TPED SS SS SS SSSSSSRIM=473.90 RIM=475.03 8"INV THRU=467.93 TSP "BLIND PERSON AREA" SIGN BENCHMARK- RR SPIKE FOUND IN POLE NM 3 ELEVATION=474.91' BENCHMARK - N.H.O.A. ON HYDRANT ELEVATION=479.30' TSB TSB TSB TEL. FLAG "STOP" SIGN "ROUTE 9/ WEEKS ROAD" SIGNS "30 MPH" SIGN SIGN "DEAD END" SIGN G UG GAS PAINT MARK-OUT SIGN RIM=473.84 (A)8" INV IN=466.84 8"INV THRU=466.24 RIM=476.48 8" INV THRU=467.28 CROSSWALK PEDESTAL TSP ON CONCRETE BASE G G G G G G G G G G GGGGGGAPPROXIMATE LOCATION OF EXISTING 4" CS-35# GAS LINE PER MAPPING PROVIDED BY NATIONAL GRID APPROXIMATE LOCATION OF EXISTING 12" CS-35# GAS LINE PER MAPPING PROVIDED BY NATIONAL GRID 4 7 9 4 7 8 477476 475 474482 482 4 8 1 478 478 477 476 476476 4 7 4 475 475 47 4 475 475 4 76 478 4 7 9 4 7 8 477 476 477 48 0 HIGHWAY BOUNDARY1967 HIGHWAYBOUNDARYDEED LINE FORMERPINE DRIVEUNDEVELOPED1967 HIGHWAY BOUNDARYBAR SCALE 1 inch = ft. 30 0 15 30 60 30 c PROJECT NUMBER: 1 DATE REVISIONS RECORD/DESCRIPTION PROJ. NO CHECKED DRAFTED C.T. MALE ASSOCIATES SCALE : CHECKDRAFTER APPR. : : : : OFSHEET DWG. NO: UNAUTHORIZED ALTERATION OR ADDITION TO THIS DOCUMENT IS A VIOLATION OF THE NEW YORK STATE EDUCATION LAW. DATE : 2 3 4 5 6 7 8 9 C.T. MALE ASSOCIATES Engineering, Surveying, Architecture, Landscape Architecture & Geology, D.P.C. 50 CENTURY HILL DRIVE, LATHAM, NY 12110 PH 518.786.7400 www.ctmale.com COBLESKILL, NY · GLENS FALLS, NY · POUGHKEEPSIE, NY JOHNSTOWN, NY · RED HOOK, NY · SYRACUSE, NY 18.____ HOFFMAN CARWASH 919 STATE ROUTE 9 TOWN OF QUEENSBURY WARREN COUNTY, NEW YORK 2021 21.1302 SEPT. 9, 2021 12 FRANCIS G. PALUMBO R.L.A NO. 001226 XREFS:CAD DWG. FILE NAME:CAD DWG. FILE NAME:DESIGNEDK:\Projects\211302\LD\Drawings-Maps\C-102_SG.dwgC-102_SG.dwgPROGRESS PRINT SITE GRADING & SOIL EROSION & SEDIMENT CONTROL PLAN OKS OKS FGP 1" = 30' C-102 2 NONE 1.DIG SAFELY NEW YORK (PHONE 800-962-7962 / PHONE 811 / WWW.DIGSAFELYNEWYORK.COM) SHALL BE NOTIFIED PRIOR TO BE CONDUCTING ANY TEST BORINGS, EXCAVATION OR CONSTRUCTION. UTILITY MARK-OUTS SHALL BE MAINTAINED THROUGHOUT THE CONSTRUCTION PERIOD. 2.THE CONTRACTOR SHALL NOTIFY ALL UTILITY OWNERS HAVING UNDERGROUND UTILITIES ON-SITE OR IN THE RIGHT-OF-WAY THAT MAY BE AFFECTED BY THE WORK, PRIOR TO EXCAVATING AND SITE GRADING. 3.SITE GRADING SHALL NOT PROCEED UNTIL APPROPRIATE EROSION AND SEDIMENT CONTROL MEASURES HAVE BEEN INSTALLED. 4.THE CONTRACTOR SHALL BE RESPONSIBLE FOR DEWATERING AND THE MAINTENANCE OF SURFACE DRAINAGE PATTERNS DURING THE COURSE OF THE WORK. 5.NO SAW CUTTING OF EXISTING ROADWAY IS ALLOWED. DIRECTIONAL DRILLING MUST BE PERFORMED CROSSING THE ROAD. NO PAVEMENT CUTS OR SHOULDER DISTURBANCE WITHOUT THE APPROVAL OF TOWN HIGHWAY SUPERINTENDENT. 6.EARTHWORK SHALL BE SMOOTHLY AND EVENLY BLENDED INTO EXISTING CONDITIONS. IN THE EVENT THAT WORK OUTSIDE OF DESIGNATED LIMITS OF CONSTRUCTION IS NECESSARY, THE PERMISSION OF THE PROPERTY OWNER MUST FIRST BE OBTAINED BEFORE COMMENCING SUCH WORK. 7.BOX TREES, SHRUBS, AND HEDGES TO REMAIN BEFORE PLACING EARTH AGAINST OR NEAR THEM. SHRUBS AND HEDGES, WHICH MUST BE REMOVED TO PERFORM THE WORK, SHALL BE HEALED IN AND REPLANTED IN AS GOOD A CONDITION AS THEY WERE BEFORE THEIR REMOVAL. ANY DAMAGED TREES, SHRUBS AND/OR HEDGES INTENDED TO REMAIN SHALL BE REPLACED IN SIMILAR SIZE AND SPECIES AT THE CONTRACTOR'S EXPENSE. 8.THE CONTRACTOR SHALL PROVIDE TEMPORARY FENCING, BARRICADES, OR OTHER SUITABLE PROTECTION LOCATED OUTSIDE THE DRIP LINE (OUTER PERIMETER OF BRANCHES) TO PROTECT TREES AND OTHER PLANTS INTENDED TO REMAIN FROM DAMAGE. 9.CONSTRUCTION ACTIVITY WITHIN THE TOWN ROW SHALL BE RESTORED, GRADED FOR DRAINAGE AND VEGETATION ESTABLISHED PRIOR TO C.O. ISSUANCE. 10.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). 11.NOTIFY AND APPLY FOR WORK PERMIT THROUGH THE TOWN OF WILTON HIGHWAY DEPARTMENT PRIOR TO COMMENCING WORK IN THE TOWN RIGHT OF WAY. DIRECTION DRILLING UNDER ROADWAY IS REQUIRED. OPEN CUTS IN PAVEMENT SURFACE NEED TO BE APPROVED BY WILTON HIGHWAY DEPARTMENT, THE AUTHORITY HAVING JUSIDICTION OVER ROADWAY. 1.INSTALL STABILIZED CONSTRUCTION ACCESS AND PERIMETER EROSION AND SEDIMENT CONTROLS. 2.CLEAR AND GRUB THE SITE. 3.DEMOLITION OF EXISTING PAVEMENT, CURB AND SIDEWALK. 4.GRADE TEMPORARY SEDIMENT TRAP. 5.ROUGH GRADE THE STORMWATER MANAGEMENT AREAS. WHEN EXCAVATING INFILTRATION BASINS, EXCAVATE TO 1' ABOVE FINISHED GRADE TO PREVENT SILTATION DURING CONSTRUCTION. 6.ROUGH GRADE THE ROAD AND BUILDING FOOTPRINT. 7.INSTALLATION/CONNECTION OF UTILITIES. 8.ROUGH GRADE THE REMAINDER OF THE SITE. 9.STABILIZE THE AREAS OUTSIDE OF THE BUILDING FOOTPRINT AND THE ROADWAY, WITH STRAW AND SEED. 10.ESTABLISH FINAL GRADES, REMOVE SEDIMENT FROM TRAP AND PROPERLY DISPOSE OF IN AN APPROVED UPLAND AREA. 11.EXCAVATE INFILTRATION BASIN TO FINAL GRADES (REFER TO INFILTRATION BASIN CONSTRUCTION NOTES ON THIS SHEET). HYDROSEED AND PLACE SILT FENCE OR COMPOST FILTER SOCK AT TOE OF BASIN SLOPE(S). AS INDICATED ON THE PLANS. 12.CONSTRUCT SUBBASE SECTION OF ROADWAY AND FOUNDATION PREPARATION FOR BUILDING. 13.STABILIZE ALL OTHER AREAS THAT ARE DISTURBED. CONTINUE WORK IN THE DRIVEWAY AND BUILDING. 14.ONCE ALL UPLAND AREAS ARE STABILIZED WITH IMPERVIOUS COVER AND GRASSED AREAS HAVE ACHIEVED 80% VEGETATIVE COVER, PERIMETER EROSION CONTROLS MEASURES CAN BE REMOVED. 1.TO MAXIMIZE THE PERCOLATION IN THE BOTTOM OF THE INFILTRATION BASIN AND TO ESTABLISH AND MAINTAIN VEGETATIVE COVER, IT IS REQUIRED THAT A REDUCED DEPTH OF TOPSOIL (APPROXIMATELY 1.5 INCHES) BE SPREAD ACROSS THE BASIN FLOOR. THE TOPSOIL SHALL BE WORKED INTO THE UPPER 2 TO 3 INCHES OF NATIVE SAND CREATING A BLENDED MIXTURE OF TOPSOIL AND NATIVE SAND. USE LIGHT MECHANICAL EQUIPMENT(I.E., YORK RAKE, LANDSCAPE RAKE) TO AERATE AND BLEND THE TOPSOIL AND NATIVE SAND. 2.IT IS CRITICAL THAT THE CONTRACTOR AVOID THE USE OF HEAVY EQUIPMENT ON THE BASIN FLOOR WHEN PERFORMING THE SURFACE TREATMENT WORK. IF THE BASIN FLOOR HAS EXPERIENCED HEAVY POINT LOADING(I.E., COMPACTION) THEN THE BASIN FLOOR SHALL BE AERATED (DECOMPACTED) TO RESTORE THE NATURAL PERCOLATION RATE. THE INTENT IS TO PROVIDE ENOUGH ORGANIC TOPSOIL TO GET GRASS ESTABLISHED WITHOUT CHOKING OFF THE INFILTRATION CAPACITY THROUGH THE FLOOR OF THE BASIN. 3.FOR INFILTRATION BASINS THAT INCLUDE A FOREBAY COMPONENT, THE FOREBAY MAY BE EXCAVATED AND UTILIZED AS A SEDIMENT TRAP DURING CONSTRUCTION; HOWEVER, THE INFILTRATION BASIN PORTION OF THE BASIN MAY NOT BE EXCAVATED AND/OR UTILIZED AS A TEMPORARY SEDIMENT CONTROL DEVICE, AS THIS CAN CAUSE THE INFILTRATION BASIN TO BECOME SILTED IN, COMPACTED AND REDUCE ITS OVERALL INFILTRATION CAPABILITIES. F LOW SECTIONPERSPECTIVE VIEWFLOWNOTES:1.POSTS SHALL BE STEEL EITHER "T" OR "U" TYPE OR HARDWOOD.2.FILTER CLOTH SHALL BE FASTENED SECURELY TO POSTS.3.WHEN TWO SECTIONS OF FILTER CLOTH ADJOIN EACH OTHER THEY SHALL BE OVERLAPPED BY 6", FOLDED AND STAPLED.4.FILTER CLOTH SHALL BE MIRAFI 100X OR APPROVED EQUAL.5.MAINTENANCE SHALL BE PERFORMED AS NEEDED AND MATERIAL SHALL BE REMOVED WHEN "BULGES" DEVELOP IN THESILT FENCE. WHEN THE ACCUMULATED SEDIMENT REACHES 30% OF THE SILT FENCE HEIGHT, THE SEDIMENT SHALL BEREMOVED AND DISPOSED OF IN AN APPROPRIATE UPLAND AREA.6.PREFABRICATED UNITS SHALL BE MIRAFI SILT FENCE, MIRAFI ENVIROFENCE OR APPROVED EQUIVALENT.REPLACEEXISTING SOILAND COMPACTFILTER CLOTH(GEOTEXTILE FABRIC)36" MIN. FENCE POSTUNDISTURBEDGROUNDHEIGHT OF FILTER18" MIN.6"MIN10' MAX CTR TO CTR36" MIN. LENGTH FENCEPOSTS DRIVEN MIN. 16"INTO GROUNDEMBED FILTERCLOTH MIN 6"INTO GROUND4"20" MIN. 16" MIN.FINISHED GRADESCALE:CROSS REFERENCE:SILT FENCE DETAILNONE2C-508NONEMIN.12'MIN.24'50' MIN.12'12'6"MIN.50' MIN.3'5'NOTES:1.USE 1"-4" STONE, NYSDOT NO. 2 CRUSHED STONE, ORRECLAIMED OR RECYCLED CONCRETE, OR APPROVEDEQUIVALENT.2.THE LENGTH SHALL NOT BE LESS THAN 50 FEET.3.NYSDOT NO. 2 CRUSHED STONE SHALL BE MAINTAINED ATA MINIMUM OF 6" IN DEPTH.4.ENTRANCE SHALL HAVE A 12 FOOT MINIMUM WIDTH, BUTNOT LESS THAN THE FULL WIDTH AT POINTS WHEREINGRESS OR EGRESS OCCURS. ENTRANCE SHALL BE ATLEAST 24 FEET WIDE IF SINGLE ENTRANCE TO SITE.5.ALL SURFACE WATER FLOWING OR DIVERTED TOWARDCONSTRUCTION ENTRANCES SHALL BE PIPED BENEATH THEENTRANCE. IF PIPING IS NOT PRACTICAL, A MOUNTABLEBERM WITH 1V:5H SLOPES WILL BE PERMITTED.6.THE ENTRANCE SHALL BE MAINTAINED IN A CONDITIONWHICH WILL PREVENT TRACKING OR FLOWING OFSEDIMENT ONTO PUBLIC RIGHTS- OF-WAY. ALL SEDIMENTSPILLED, DROPPED, WASHED OR TRACKED ONTO PUBLICRIGHTS-OF-WAY SHALL BE REMOVED IMMEDIATELY.7.WASHING - WHEELS SHALL BE CLEANED TO REMOVESEDIMENT PRIOR TO ENTRANCE ONTO PUBLICRIGHT-OF-WAY.8.WHEN WASHING IS REQUIRED, IT SHALL BE DONE ON ANAREA STABILIZED WITH STONE AND WHICH DRAINS INTOAN APPROVED SEDIMENT TRAPPING DEVICE.9.PERIODIC INSPECTION AND NEEDED MAINTENANCE SHALLBE PROVIDED AFTER EACH RAIN.NYSDOT NO. 2 CRUSHED STONEWOVEN GEOTEXTILE,"GEOTEX 350ST", ORAPPROVED EQUALEXISTINGGROUNDEXISTINGPAVEMENTPAVEMENTMOUNTABLE BERM(OPTIONAL)PLAN VIEWPROFILESCALE:CROSS REFERENCE:STABILIZED CONSTRUCTION ACCESSNONE3C-508NONESECTIONAREA TO BEPROTECTEDWORKAREAWORK AREAAREA TO BE PROTECTEDRUNOF F 12" MIN 12" DIA, 5 MIL HDPECOMPOST FILTER SOCKBLOWN/PLACEDFILTER MEDIA2" X 2" X 36" WOODENSTAKES PLACED 10' O.C..PLAN12" DIA, 5 MIL HDPECOMPOST FILTER SOCKTUBULAR FILTRATION DEVICES (COMPOST FILTERSOCKS) MAY BE USED IN AREAS OF ROCK WHEREINSTALLATION OF SILT FENCE IS IMPRACTICAL2" X 2" X 36" WOODEN STAKES PLACED 10' O.C..NOTE:1.FILL TUBULAR FILTRATION SEDIMENTCONTROL DEVICE WITH FILTER MEDIAAPPROVED BY NYSDEC FOR THISAPPLICATION.COMPOSTFILTER SOCK2" X 2" X 36" WOODEN STAKESSCALE:CROSS REFERENCE:COMPOST FILTER SOCKNONE5C-508NONEPLANSECTION 'A-A'FLOWSTRAW BALEPOLYETHYLENE LINER(10 MILS MIN.)WOOD OR METAL STAKES(2 PER BALE)SECURE PLASTIC LINER INTOGROUND NEAR TOP OF SLOPESTRAW BALE (TYP)STAKE (TYP)10 MIL POLYETHYLENELINER (TYP)8' MIN8' MIN CONCRETEWASH OUTSIGN SHALL BE PLACED INA PROMINENT LOCATIONAT WASHOUT AREA18"12"4' MIN.3' MIN.BLACK LETTERS ONWHITE BACKGROUNDGALVANIZED "U"CHANNEL POSTFINISHED GRADEWASHOUT SIGNNOTES1.CONTAINMENT MUST BE STRUCTURALLY SOUND AND LEAKFREE AND CONTAIN ALL LIQUID WASTES.2.CONTAINMENT DEVICES MUST BE OF SUFFICIENTQUANTITY OR VOLUME TO COMPLETELY CONTAIN THELIQUID WASTES GENERATED.3.WASHOUT MUST BE CLEANED OR NEW FACILITIESCONSTRUCTED AND READY TO USE ONCE WASHOUT IS75% FULL.4.WASHOUT AREA(S) SHALL BE INSTALLED IN A LOCATIONEASILY ACCESSIBLE BY CONCRETE TRUCKS.5.ONE OR MORE AREAS MAY BE INSTALLED ON THECONSTRUCTION SITE AND MAY BE RELOCATED ASCONSTRUCTION PROGRESSES.6.AT LEAST WEEKLY REMOVE ACCUMULATION OF SAND ANDAGGREGATE AND DISPOSE OF PROPERLY.7.SIGN SHALL BE PLACED IN A PROMINENT LOCATION ATWASHOUT AREAA2' MINSCALE:CROSS REFERENCE:CONCRETE WASHOUT DETAILNONE4C-508NONE1.ALL EROSION AND SEDIMENT CONTROL PRACTICES SHALL CONFORM TO THE "NEW YORK STATE STANDARDS AND SPECIFICATIONS FOREROSION AND SEDIMENT CONTROL" (2016 ISSUE) AND ANY ADDENDA THERETO.2.THE SEDIMENT CONTROL MEASURES DETAILED IN THESE PLANS SHALL BE IN PLACE PRIOR TO THE START OF EACH CONSTRUCTIONPHASE. ONCE CONSTRUCTED, ALL MEASURES SHALL BE PROPERLY MAINTAINED THROUGHOUT THE CONSTRUCTION PERIOD, AND THENREMOVED FROM THE SITE ONCE THE SITE IS STABILIZED.3. AFTER THE START OF CONSTRUCTION, SITE SWPPP INSPECTIONS SHALL BE CONDUCTED AT LEAST ONCE EVERY (7) CALENDAR DAYS.4. BASED ON THE WEEKLY SITE SWPPP INSPECTIONS, THE EROSION AND SEDIMENT CONTROL MEASURES IDENTIFIED IN THE SWPPP MAY BEREVISED AS SITE CONDITIONS WARRANT. THE CONTRACTOR SHALL IMPLEMENT THESE CHANGES AS SOON AS PRACTICABLE.5.THE EROSION AND SEDIMENT CONTROL MEASURES SHALL BE INSTALLED AND MAINTAINED BY THE CONTRACTOR UNTIL THE FINALSURFACE TREATMENT HAS BEEN INSTALLED AND VEGETATED AREAS HAVE ESTABLISHED 80% COVERAGE. AFTER THE VEGETATED AREASHAVE BEEN STABILIZED WITH AT LEAST 80% VEGETATIVE COVER, AS DETERMINED BY THE ENGINEER, THE PROJECT SPONSOR SHALLASSUME RESPONSIBILITY FOR MAINTAINING THE EROSION AND SEDIMENT CONTROL SYSTEM(S).6.THE EROSION AND SEDIMENT CONTROL MEASURES SHOWN ON THE CONTRACT DOCUMENTS WILL NEED TO BE SUPPLEMENTED WITHINTERIM MEASURES PRIOR TO ACHIEVING FINAL GRADES. THE CONTRACTOR SHALL PROVIDE AND MAINTAIN INTERIM EROSION ANDSEDIMENT CONTROL MEASURES AS NEEDED TO CONTROL EROSION AND SEDIMENTATION THROUGHOUT THE DURATION OFCONSTRUCTION. THE DETAILS AND EXTENT OF THESE MEASURES ARE HIGHLY DEPENDENT ON THE CONTRACTORS MEANS AND METHODSAND THEREFORE NOT DETAILED ON THESE PLANS. THE COSTS ASSOCIATED WITH INSTALLING AND MAINTAINING THESE INTERIMMEASURES SHALL BE INCLUDED IN THE CONTRACTORS BID.7.CONSTRUCTION ACTIVITIES SHALL PROCEED IN ACCORDANCE WITH THE CONSTRUCTION SEQUENCING NOTES.8.OUTSIDE THE GROWING SEASON, OTHER METHODS OF SOIL STABILIZATION (SUCH AS THE USE OF JUTE MESH, EXCELSIOR MATTING, ORTACKIFIER) SHALL BE USED UNTIL SUCH TIME AS VEGETATIVE COVER CAN BE ESTABLISHED.9.EXISTING VEGETATION SHALL BE PRESERVED TO THE MAXIMUM EXTENT PRACTICABLE. SITE WORK ACTIVITIES SHALL BE PLANNED TOMINIMIZE THE AREA AND DURATION OF SOIL DISTURBANCE. REMOVAL OF WOODY VEGETATION SHALL BE KEPT TO THE MINIMUM EXTENTPRACTICABLE.1.STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED WHERE NECESSARY TO PREVENT SEDIMENT FROM BEING TRACKED ONTOROADWAYS.2.PERMANENT TRAFFIC CORRIDORS SHALL BE ESTABLISHED AND "ROUTES OF CONVENIENCE" SHALL BE AVOIDED. CONSTRUCTION TRAFFICSHALL NOT CROSS STREAMS OR DITCHES EXCEPT AT SUITABLE CROSSING FACILITIES, AND SHALL NOT OPERATE UNNECESSARILY WITHINWATERWAYS OR DRAINAGE DITCHES.3.IF INTERNAL CONSTRUCTION ROADS ARE DETERMINED TO BE A SOURCE OF SEDIMENT-LADEN RUNOFF TO SENSITIVE AREAS, THEY SHALLBE STABILIZED AS SOON AS PRACTICABLE.1.SILT FENCE/ COMPOST FILTER SOCK SHALL BE PLACED ON THE DOWNSLOPE SIDE OF DISTURBED AREAS AND AROUND THE PERIMETEROF SOIL STOCKPILES.2.SILT FENCE/ COMPOST FILTER SOCK SHALL BE PLACED AROUND THE BOUNDARY OF WETLANDS ADJACENT TO THE WORK AREA, AND ATTHE EDGE OF WETLANDS AFTER CONSTRUCTION IS COMPLETED.3.SILT FENCE/ COMPOST FILTER SOCK SHALL BE REPAIRED OR REPLACED WHEN THE ENDS ARE FRAYED OR WORN, AND WHEN THE FENCEIS NOT ANCHORED 6" INTO THE GROUND. WHEN THE ACCUMULATED SEDIMENT REACHES 30% OF THE SILT FENCE HEIGHT, THESEDIMENT SHALL BE REMOVED AND DISPOSED OF IN AN APPROPRIATE UPLAND AREA.STABILIZED CONSTRUCTION ENTRANCE NOTES:SILT FENCE NOTES:GENERAL NOTES:1.DUST SHALL BE CONTROLLED ON THIS PROJECT BY USE OF A WATER TRUCK.2.THE QUALIFIED INSPECTOR WILL DETERMINE THE FREQUENCY OF WATERAPPLICATION IN ORDER TO CONTROL DUST.3.CHEMICALS OR OTHER METHODS OF DUST CONTROL ARE PROHIBITED TO BE USED ONTHIS PROJECT, UNLESS APPROVED BY THE REGIONAL DEC OFFICE.DUST CONTROL NOTES:1.TEMPORARY STABILIZATION MEASURES SHALL START AS SOON AS PRACTICAL ON PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITIESHAVE TEMPORARILY OR PERMANENTLY CEASED, BUT NOT MORE THAN (7) DAYS AFTER WORK HAS CEASED. ACCEPTABLE TEMPORARYSTABILIZATION MEASURES INCLUDE, BUT MAY NOT BE LIMITED TO SEEDING MULCH, STRAW, EROSION CONTROL BLANKETS, SOILSTABILIZING EMULSION PRODUCTS, OR SOME FUNCTIONALLY EQUIVALENT MEASURE. TEMPORARY SEEDING SHALL BE ANNUAL RYE GRASS,APPLIED AT A RATE OF 30 LBS./ACRE.2.AREAS TO RECEIVE TEMPORARY SEEDING AND MULCHING SHALL RECEIVE BOTH GRASS SEED AND MULCH, AS DESCRIBED BELOW.3.IN SPRING OR SUMMER OR EARLY FALL, SEED SHALL BE ANNUAL RYEGRASS APPLIED AT A RATE OF 30 POUNDS PER ACRE.4.IN LATE FALL OR EARLY WINTER, SEED SHALL BE CERTIFIED "AROOSTOCK" WINTER RYE (CEREAL RYE) APPLIED AT A RATE OF 100 POUNDSPER ACRE.5.MULCH SHALL CONSIST OF STRAW APPLIED AT A RATE OF 2 TONS PER ACRE OR WOOD CHIPS (MIN. 3" DEEP). (A WOOD FIBER HYDROMULCHOR OTHER APPROVED SPRAYABLE PRODUCT MAY BE SUBSTITUTED, IF APPLIED ACCORDING TO MANUFACTURER'S RECOMMENDATIONS.)6.A JUTE MESH SHALL BE PLACED OVER THE MULCH IN AREAS WHERE WIND OR WATER EROSION PREVENTS ESTABLISHMENT OF GRASS COVER.TEMPORARY SEEING AND MULCHING NOTES:SEEDING AND MULCHING NOTES:1.TEMPORARY STABILIZATION MEASURES SHALL START AS SOON AS PRACTICAL ON PORTIONS OF THE SITE WHERE CONSTRUCTION ACTIVITIESHAVE TEMPORARILY OR PERMANENTLY CEASED, BUT NOT MORE THAN (7) DAYS AFTER WORK HAS CEASED. ACCEPTABLE TEMPORARYSTABILIZATION MEASURES INCLUDE, BUT MAY NOT BE LIMITED TO SEEDING, MULCH, STRAW, EROSION CONTROL BLANKETS, SOILSTABILIZING EMULSION PRODUCTS, OR SOME FUNCTIONALLY EQUIVALENT MEASURE. TEMPORARY SEEDING SHALL BE ANNUAL RYE GRASS,APPLIED AT A RATE OF 30 LBS./ACRE.2.TEMPORARY EROSION CONTROL PROTECTION BY MULCHING SHALL BE CARRIED OUT WITHIN (7) DAYS OF THE FILL GRADE BEING FINALIZEDTO AVOID POSSIBLE CONTAMINATION OF PONDS, STREAMS, OR OTHER WATERCOURSES. PLACEMENT OF JUTE MESH OR EROSION CONTROLBLANKETS OVER THE MULCH IS RECOMMENDED TO PROVIDE POSITIVE "TACKING" OF THE MULCH AND INCREASED PROTECTION AGAINSTEROSION.3.PERMANENT SEEDING AND MULCH SHALL BE APPLIED AS SOON AS THE DISTURBED AREAS HAVE ACHIEVED FINAL GRADE. IF THE SPECIFIEDSEEDING DATES ARE MISSED, MULCH SHALL BE APPLIED TO THE SLOPE AND SEED SHALL BE APPLIED TO THE TOP OF THE MULCH IN THE NEXTSEEDING SEASON AFTER RECONDITIONING THE TOPSOIL. WHEN THE FINAL GRADE CANNOT BE OBTAINED IN (7) DAYS, MULCH SHALL BEAPPLIED FOR PURPOSES OF TEMPORARY EROSION CONTROL.4.EROSION CONTROL BLANKETS OR SOIL STABILIZING EMULSION PRODUCTS SERVE AS A TEMPORARY EROSION CONTROL MEASURE ON ALLSLOPES STEEPER THAN OR EQUAL 1V:3H AND AS INDICATED ON THE PLANS.5.THE UNDERLYING SOIL IN AREAS THAT WILL BE PERMANENTLY PERVIOUS (LAWN, GRASS AND LANDSCAPED AREAS) SHALL BE RESTORED INACCORDANCE WITH THE MEASURES IDENTIFIED IN THE JANUARY 2015, NYSDEC STORM WATER MANAGEMENT DESIGN MANUAL, SECTION 5.1.6"SOIL RESTORATION".6.SEEDBED SHALL BE PREPARED BY LOOSENING THE TOPSOIL TO A DEPTH OF 4 TO 6 INCHES, AND LIMING TO A PH OF 6.5. FERTILIZER SHALL BEAPPLIED IF NECESSARY.7.MULCH OVER PREEMINENT SEED AREAS SHALL CONSIST OF SMALL GRAIN STRAW APPLIED AT A RATE OF 2 TONS PER ACRE AND ANCHOREDWITH WOOD FIBER HYDROMULCH APPLIED AT A RATE OF 500 TO 750 POUNDS PER ACRE. THE WOOD FIBER MULCH SHALL BE APPLIEDTHROUGH A HYDROSEEDER IMMEDIATELY AFTER SEEDING8.SEED MIXTURES:A.GENERAL LAWN MIX:1.SEED SHALL BE A MIXTURE OF THE SPECIES AND PROPORTION AS LISTED BELOW:SPECIESPERCENTAGE BY WEIGHTYELLOW BLOSSOM SWEETCLOVER25%ALSIKE CLOVER 25%CRIMSON CLOVER 15%RED CLOVER, MEDUIM 20%WHITE CLOVER, DUTCH 15%2.RATE: 75 - 150 LBS/ACRE, OR 1.7 - 3.4 LBS/1,000 SFSECTIONELEVATIONVARIESTURF REINFORCING MAT (T.R.M.)LIMIT OF COMPACTIONLOOSE TOP SOILDETENTION BASIN EMBANKMENT FILL REQUIREMENTS:NOTE:3" MINSCALE:CROSS REFERENCE:TRM BROAD-CRESTED WEIRNONE1C-508NONEA. EMBANKMENT SOILS SHALL CONSIST OF INORGANIC SOILS COMPOSED OF THE ON-SITE SOIL, UNLESS OTHERWISE INDICATED.B. THE SOILS SHALL BE COMPACTED TO A DRY DENSITY EQUAL TO AT LEAST 95 PERCENT OF THE SOIL'S MAXIMUM DRY DENSITY, AS IT IS DEFINED BY THE MODIFIED PROCTOR COMPACTION TEST, ASTM DESIGNATION D-1557.C. THE SOILS SHALL BE COMPACTED AT A MOISTURE CONTENT THAT IS WITHIN 3 PERCENT OF THE SOIL'S OPTIMUM MOISTURE CONTENT FOR COMPACTION, AS IT IS DEFINED BY ASTM DESIGNATION D-1557. SOILS MOISTURE CONTENTS OUTSIDE THESE LIMITS SHALL BE MOISTURE CONDITIONED (THROUGH WETTING OR DRYING) AND BE COMPACTED ONCE THEIR MOISTURE CONTENT FALLS WITHIN THE SPECIFIED LIMITS.PROVIDE TURF REINFORCING MATON SPILLWAY, SI GEOSOLUTIONLANDLOK TRM 450 (OR APPROVEDEQUIVALENT). INSTALL PERMANUFACTURERSRECOMMENDATIONSIN ALL AREAS WHERE TURF REINFORCING MAT (T.R.M.) IS TO BE INSTALLED, EARTHWORKSHALL BE CONSTRUCTED IN CONTROLLED LIFTS AND COMPACTED. SUCCESSIVE LIFTSSHALL BE PLACED & COMPACTED UNTIL ROUGH GRADE IS ACHIEVED 3" BELOW FINALDESIGN GRADE. THE LAST 3" SHALL BE INSTALLED PER THE FOLLOWING DETAIL:OVERFLOW SIDETOP OFBERMTOP OF WEIRBASIN SIDETOP OF WEIRPER GRADING PLANTOP OF BERMPER GRADING PLANBANK STABILIZATIONSEED MIXTURF REINFORCING MAT (T.R.M.) (STAPLED PERMANUFACTURERS RECOMMENDATIONS)OVERLAP AND ANCHORT.R.M. PERMANUFACTURERSRECOMMENDATIONSEARTHEMBANKMENTEARTHEMBANKMENT19.9547CAD DWG. FILE NAME:K:\Projects\211302\LD\Drawings-Maps\C-507_DET7.dwg cPROJECT NUMBER:1DATEREVISIONS RECORD/DESCRIPTIONPROJ. NOCHECKEDDRAFTEDC.T. MALE ASSOCIATESSCALE :CHECKDRAFTERAPPR.::::OFSHEETDWG. NO:UNAUTHORIZED ALTERATION ORADDITION TO THIS DOCUMENT IS AVIOLATION OF THE NEW YORK STATEEDUCATION LAW.DATE :23456789C.T. MALE ASSOCIATESEngineering, Surveying, Architecture, Landscape Architecture & Geology, D.P.C.50 CENTURY HILL DRIVE, LATHAM, NY 12110 PH 518.786.7400www.ctmale.comCOBLESKILL, NY · GLENS FALLS, NY · POUGHKEEPSIE, NYJOHNSTOWN, NY · RED HOOK, NY · SYRACUSE, NY18.____HOFFMAN CARWASH919 STATE ROUTE 9TOWN OF QUEENSBURYWARREN COUNTY, NEW YORK202121.1302SEPT. 9, 202112FRANCIS G. PALUMBOR.L.A NO. 001226XREFS:CAD DWG. FILE NAME: CAD DWG. FILE NAME:DESIGNEDK:\Projects\211302\LD\Drawings-Maps\C-507_DET7.dwg C-507_DET7.dwgPROGRESS PRINTEROSION AND SEDIMENT CONTROL DETAILSOKSOKSFGPAS NOTEDC-50711NONE C.T. MALE ASSOCIATES APPENDIX G SWPPP Inspection Forms C.T. MALE ASSOCIATES Field Inspection Report: SPDES GP-0-20-001 Project Name: Hoffman Car Wash CTM Proj. #: 21.1302 Date: Time: Inspector/ Title Weather During Inspection Rain: Previous 24 hours: Rain: Site Soil Conditions: Description of Run off at Discharge Points Erosion and Sediment Control Features: (Refer to Map for Location) Condition Corrective Action Required Silt Fence Road Sweeping / Offsite Construction Entrance(s) Riprap Outlet Protection Concrete Washout Other: C.T. MALE ASSOCIATES Field Inspection Report: SPDES GP-0-20-001 App H_SPDES Field Report_GP-0-20-001.doc - 2 - Description of Disturbed Area: Description of Stabilized Areas: Areas that Require Stabilization: Permanent Stormwater Management Practices: Hydrodynamic Unit Practices not in conformance with SWPPP: Repairs Required: Improvements Since Last Visit: Signature of Qualified Inspector: Date Inspection Mailed to Owner/Contractor: Signature of Owner (if required): C.T. MALE ASSOCIATES APPENDIX H Post-Construction Operations and Maintenance Manual (O&M Manual) September 17, 2021 Post-Construction Operations and Maintenance Manual (O&M Manual) for Stormwater Management Facilities for Hoffman Car Wash 919 State Route 9 Town of Queensbury Warren County, New York Prepared for: Hoffman Development Corp. 1757 Central Avenue Albany, NY 12205 Prepared by: C.T. MALE ASSOCIATES ENGINEERING, SURVEYING, ARCHITECTURE, LANDSCAPE ARCHITECTURE & GEOLOGY, D.P.C. 50 Century Hill Drive Latham, New York 12110 (518) 786-7400 FAX (518) 786-7299 C.T. Male Associates Project No: 21.1302 Unauthorized alteration or addition to this © Copyright 2021 Document is a violation of the New C.T. MALE ASSOCIATES York State Education Law. C.T. MALE ASSOCIATES - i - POST-CONSTRUCTION OPERATIONS AND MAINTENANCE MANUAL (O&M MANUAL) FOR STORMWATER MANAGEMENT FACILITIES FOR HOFFMAN CAR WASH Table of Contents Page 1.0 INTRODUCTION ........................................................................................................ - 2 - 2.0 STORMWATER MANAGEMENT SYSTEM ........................................................... - 2 - 2.1 Stormwater Management System Description ........................................... - 2 - 3.0 MAINTENANCE AND INSPECTION SCHEDULE .............................................. - 2 - 3.1 Drainage Manholes and Hydrodynamic Separators ................................. - 4 - 3.2 Storm Sewers .................................................................................................... - 4 - 3.3 End Sections ...................................................................................................... - 4 - 3.4 Debris/Sediment Monitoring and Removal ................................................ - 4 - 3.5 Porous Pavement ............................................................................................. - 4 - 3.6 Detention Basin Slopes .................................................................................... - 5 - 4.0 CONTACT INFORMATION..................................................................................... - 5 - Appendices Appendix A1: Maintenance Inspection Form 1.0 INTRODUCTION This Manual describes operation and maintenance procedures that should be employed to maximize the useful life and design intent of various systems and designated areas on the Hoffman Car Wash site, located in the Town of Queensbury, Warren County, New York. The owner (Hoffman Development Corp.) will be responsible for maintenance of these facilities once construction is completed. 2.0 STORMWATER MANAGEMENT SYSTEM This section identifies the parts or components of the stormwater management system that need to be maintained on a regular basis to ensure proper functioning of each stormwater management practice, including non-structural practices. 2.1 Stormwater Management System Description The stormwater management system for the Project consists of two (2) infiltration basins, deep sumps, and pervious pavement. New catch basin structures and storm piping will also be incorporated and should be maintained in accordance with this manual. 3.0 MAINTENANCE AND INSPECTION SCHEDULE Stormwater management systems need to undergo regular inspection and maintenance in order to function properly and at design capacity. Maintenance needs may include: removal of silt, litter and other debris from all infiltration basins, catch basins, hydrodynamic unit(s) and swales; grass cutting and vegetation removal; and replacement of vegetative cover. A Maintenance Inspection Form (Form) should be completed to document inspection and maintenance performed at the Project (refer to Appendix A1). This Form provides a summary of the inspection requirements for each stormwater facility component, a frequency of inspection, and a description of the anticipated routine maintenance that is required. A new Form should be filled out during each inspection. Observations made during the inspection should be written in the “Inspection Comments” field. If it is determined that maintenance is required, a description of the maintenance conducted and the date of the maintenance should be written in the “Maintenance Comments” field. Copies of completed Forms should be maintained in Appendix A1 of this document. The following sections outline the procedures and schedule to be followed to perform routine inspection and maintenance activities. In general, the frequency of inspection of each stormwater facility component should be at least twice a year (spring and fall) and after a major storm event. Major storm events are considered those that result in more than 2.68 inches of rain falling within a single 24-hour period (a 1-year storm event). 3.1 Drainage Manholes and Hydrodynamic Separators Drainage manholes (DMHs) are solid covered structures equipped with sumps which “catch” sediments and other floatables from inflowing stormwater. Hydrodynamic Separators, or Treatment Units (HTUs) help to remove settleable solids and floatables from stormwater. At least twice a year and after a major storm event, catch basins and HTUs should be visually inspected to determine the depth of accumulated sediment and the presence of trash. If trash is observed, it should be removed and disposed of properly. Accumulated sediment should be removed when sediment is observed to be within three (3) inches of the invert of the outlet pipe. A measuring stick should be used to determine the depth of sediment. DMH and HTU sumps should be cleaned using a vacuum truck or other appropriate means. The contents removed by the vacuum truck should be hauled off-site to an approved or otherwise authorized solid waste disposal facility. If contents are removed by a contractor, they should provide documentation of the location used for disposal. Sediments or sediment-laden water should not be disposed of on-site. It will be most critical to perform this cleaning operation in the spring, following the application of sand and salt on the paved surfaces during winter months. Additionally, structures should be cleaned in the fall, prior to the start of the winter season, to remove leaves and other debris. 3.2 Storm Sewers Storm sewers are pipes that convey stormwater flows from one location to another. Storm sewers connect drainage manholes and dry wells to one another and convey runoff to the off-site discharge point(s). Storm sewer pipes should be inspected at least twice a year and after major storm events to determine if any debris, obstructions or floatables are present. If the flow in the storm sewer appears confined (i.e., catch basins are full of water or slow draining, or the flow from the end section is low), then a constriction may be present. If a constriction is probable or if debris or obstructions are present, they should be removed by flushing the pipes with high-pressure water. 3.3 End Sections End sections are found at the end of pipes, and they are typically followed by rock aprons. The purpose of rock aprons is to reduce the velocity, depth and energy of the water, such that the flow will not erode downstream areas. The end section of pipes, including rock aprons, should be visually inspected for trash and sediment at least twice a year and after major storm events. If trash is observed, it should be removed and disposed of properly. If excessive sediment deposition is observed on the rock apron, measures should be taken to remove the sediment. An “excessive sedimentation” condition exists when the rock on the bottom of the apron is no longer visible due to sediment deposition. It is recommended that accumulated sediments be removed with a hand shovel and disposed of properly. 3.4 Debris/Sediment Monitoring and Removal Debris shall be periodically removed from the stormwater treatment areas across the site. An inspection, and possible removal of debris, should occur monthly and after major storm events. Debris can clog the outlet control structures and hinder emergency spillway performance. All debris shall be disposed of properly. The bioretention area should be visually inspected at least twice a year and after major storm events. Bioretention plantings shall be trimmed/pruned as needed to maintain shape and function. 3.5 Porous Pavement The pavement should be inspected several times in the first few months during storm events and should be inspected twice a year to observe the buildup of the sediment which my hinder the performance of the porous pavement. At a minimum, the porous pavement should be cleaned by flushing, jet washing or vacuuming once per year. 3.6 Detention Basin Slopes The side slopes of the basin(s) should be visually inspected to confirm the existence of complete vegetative cover. At least 80% vegetative cover is needed to ensure the slopes are stabilized to prevent erosion and excess sedimentation build-up in the basins. If less than 80% vegetative cover is observed on the basin slopes in certain areas, these areas should be re-graded, seeded and mulched, as needed. Basin slopes also be inspected for erosion, animal damage and undercutting of the banks of the slope. If rills or gullies greater than 4-inches in depth and 6-inches in width are observed, they should be repaired by re-grading the area and applying seed and mulch. If the basin slopes appear to be undercutting or slumping, the slopes should be re-graded to design specifications and seeded and mulched. Animal damage, including burrowing, should be repaired and filled as necessary. If persistent animal damage is noted, it is recommended that a licensed pest control company be contacted to remove the nuisance animal. Side slopes should be inspected at least twice per year and after significant storm events, i.e. greater than 2.68” in 24 hours 4.0 CONTACT INFORMATION Questions about the stormwater management system should be directed to C.T. Male Associates. The main office phone number is 518.786.7400. Appendix A1 Maintenance Inspection Form Hoffman Car Wash - 919 State Route 9 MAINTENANCE INSPECTION FORM Stormwater Facility Component Inspection Requirement Frequency of Inspection O&M Manual Section No.Inspection Comments Maintenance Required Maintenance Needed? (Y/N)Maintenance Comments / Date of Maintenance Stick Measure for Sediment Depth *Bi-Annual and After Major Storm Events 3.1 Remove When Sediment Within 3" of the Invert of the Outlet Pipe Visual Inspection for Trash *Bi-Annual and After Major Storm Events 3.1 Remove Trash as Needed Storm Sewers Visual Inspection for Obstructions, Debris and Floatables *Bi-Annual and After Major Storm Events 3.2 Visual Inspection of Rock Aprons for Trash and Sediment Flush Storm Sewers as Needed End Sections Visual Inspection of Rock Aprons for Trash and Sediment *Bi-Annual and After Major Storm Events 3.3 Remove Trash and Sediment as Needed Debris Removal Visual Inspection for Debris in Basins *Monthly and After Major Storm Events 3.4 Remove Debris as Needed Note Percent of Vegetative Cover *Bi-Annual and After Major Storm Events 3.5 Re-grade, Reseed and Mulch in Areas with less than 80% Vegetative Cover. Remove Woody Vegetation by Mowing Visual Inspection for Gullying, Animal Burrows and Undercutting of Banks *Bi-Annual and After Major Storm Events 3.5 Re-grade, Reseed and Mulch as Needed Date of Inspection:*Bi-annual means Spring/Fall and major storm events. Inspector (name, title and company): Inspector Signature: Catch Basins & Outlet Control Structures Basin Slopes C.T. MALE ASSOCIATES APPENDIX I Notice of Termination (NOT) Form New York State Department of Environmental Conservation Division of Water 625 Broadway, 4th Floor Albany, New York 12233-3505 *(NOTE: Submit completed form to address above)* NOTICE OF TERMINATION for Storm Water Discharges Authorized under the SPDES General Permit for Construction Activity Please indicate your permit identification number: NYR ___ ___ ___ ___ ___ ___ I. Owner or Operator Information 1. Owner/Operator Name: 2. Street Address: 3. City/State/Zip: 4. Contact Person:4a.Telephone: 4b. Contact Person E-Mail: II. Project Site Information 5. Project/Site Name: 6. Street Address: 7. City/Zip: 8. County: III. Reason for Termination 9a. □ All disturbed areas have achieved final stabilization in accordance with the general permit and SWPPP. *Date final stabilization completed (month/year): 9b. □ Permit coverage has been transferred to new owner/operator. Indicate new owner/operator’s permit identification number: NYR ___ ___ ___ ___ ___ ___ (Note: Permit coverage can not be terminated by owner identified in I.1. above until new owner/operator obtains coverage under the general permit) 9c. □ Other (Explain on Page 2) IV. Final Site Information: 10a. Did this construction activity require the development of a SWPPP that includes post-construction stormwater management practices? □ yes □ no ( If no, go to question 10f.) 10b. Have all post-construction stormwater management practices included in the final SWPPP been constructed?□yes □ no (If no, explain on Page 2) 10c. Identify the entity responsible for long-term operation and maintenance of practice(s)? Page 1 of 3 NOTICE OF TERMINATION for Storm Water Discharges Authorized under the SPDES General Permit for Construction Activity - continued 10d. Has the entity responsible for long-term operation and maintenance been given a copy of the operation and maintenance plan required by the general permit? □ yes □no 10e. Indicate the method used to ensure long-term operation and maintenance of the post-construction stormwater management practice(s): □Post-construction stormwater management practice(s) and any right-of-way(s) needed to maintain practice(s) have been deeded to the municipality. □Executed maintenance agreement is in place with the municipality that will maintain the post-construction stormwater management practice(s). □For post-construction stormwater management practices that are privately owned, a mechanism is in place that requires operation and maintenance of the practice(s) in accordance with the operation and maintenance plan, such as a deed covenant in the owner or operator’s deed of record. □For post-construction stormwater management practices that are owned by a public or private institution (e.g. school, university or hospital), government agency or authority, or public utility; policy and procedures are in place that ensures operation and maintenance of the practice(s) in accordance with the operation and maintenance plan. 10f. Provide the total area of impervious surface (i.e. roof, pavement, concrete, gravel, etc.) constructed within the disturbance area? (acres) 11. Is this project subject to the requirements of a regulated, traditional land use control MS4? □ yes □no (If Yes, complete section VI - “MS4 Acceptance” statement V. Additional Information/Explanation: (Use this section to answer questions 9c. and 10b., if applicable) VI. MS4 Acceptance - MS4 Official (principal executive officer or ranking elected official) or Duly Authorized Representative (Note: Not required when 9b. is checked -transfer of coverage) I have determined that it is acceptable for the owner or operator of the construction project identified in question 5 to submit the Notice of Termination at this time. Printed Name: Title/Position: Signature: Date: Page 2 of 3 NOTICE OF TERMINATION for Storm Water Discharges Authorized under the SPDES General Permit for Construction Activity - continued VII. Qualified Inspector Certification - Final Stabilization: I hereby certify that all disturbed areas have achieved final stabilization as defined in the current version of the general permit, and that all temporary, structural erosion and sediment control measures have been removed. Furthermore, I understand that certifying false, incorrect or inaccurate information is a violation of the referenced permit and the laws of the State of New York and could subject me to criminal, civil and/or administrative proceedings. Printed Name: Title/Position: Signature: Date: VIII.Qualified Inspector Certification - Post-construction Stormwater Management Practice(s): I hereby certify that all post-construction stormwater management practices have been constructed in conformance with the SWPPP. Furthermore, I understand that certifying false, incorrect or inaccurate information is a violation of the referenced permit and the laws of the State of New York and could subject me to criminal, civil and/or administrative proceedings. Printed Name: Title/Position: Signature: Date: IX. Owner or Operator Certification I hereby certify that this document was prepared by me or under my direction or supervision. My determination, based upon my inquiry of the person(s) who managed the construction activity, or those persons directly responsible for gathering the information, is that the information provided in this document is true, accurate and complete. Furthermore, I understand that certifying false, incorrect or inaccurate information is a violation of the referenced permit and the laws of the State of New York and could subject me to criminal, civil and/or administrative proceedings. Printed Name: Title/Position: Signature: Date: (NYS DEC Notice of Termination - January 2015) Page 3 of 3