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Home My WebLink AboutBarnstable Straightway NOI_12.23.2024_SWPP ATTACHMENT E Stormwater Pollution Prevention Plan ____________________________________________________________________________ Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA i Stormwater Pollution Prevention Plan (SWPPP) For Construction Activities At: STRAIGHTWAY WATER TREATMENT FACILITY STRAIGHTWAY Barnstable, MA 02601 SWPPP Prepared For: Town of Barnstable DPW Water Supply Division 47 Old Yarmouth Road Hyannis, MA 02601 SWPPP Prepared By: Kleinfelder, Inc. 1 Beacon Street Suite 8100 Boston, MA 02108 617-417-7800 SWPPP Preparation Date: 11/15/2024 Estimated Project Dates: Project Start Date: 04/01/2025 Project Completion Date: 07/15/2027 Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA ii Contents SECTION 1: CONTACT INFORMATION/RESPONSIBLE PARTIES ................................................. 1 1.1 Operator(s) / Subcontractor(s) ................................................................................. 1 1.2 Stormwater Team ....................................................................................................... 2 SECTION 2: SITE EVALUATION, ASSESSMENT, AND PLANNING ................................................ 4 2.1 Project/Site Information ............................................................................................. 4 2.2 Discharge Information ............................................................................................... 4 2.3 Nature of the Construction Activities ........................................................................ 5 2.4 Sequence and Estimated Dates of Construction Activities .................................... 7 2.5 Authorized Non-Stormwater Discharges .................................................................. 7 2.6 Site Maps ..................................................................................................................... 8 SECTION 3: DOCUMENTATION OF COMPLIANCE WITH OTHER FEDERAL REQUIREMENTS ...... 9 3.1 Endangered Species Protection ............................................................................... 9 3.2 Historic Property Screening Process ........................................................................ 10 3.3 Safe Drinking Water Act Underground Injection Control Requirements ............. 10 SECTION 4: EROSION AND SEDIMENT CONTROLS .................................................................. 11 4.1 Natural Buffers or Equivalent Sediment Controls ................................................... 11 4.2 Perimeter Controls .................................................................................................... 12 4.3 Sediment Track-Out ................................................................................................. 13 4.4 Stockpiled Sediment or Soil ..................................................................................... 13 4.5 Minimize Dust ............................................................................................................ 14 4.6 Minimize Steep Slope Disturbances ........................................................................ 15 4.7 Topsoil ........................................................................................................................ 15 4.8 Soil Compaction ....................................................................................................... 15 4.9 Storm Drain Inlets ...................................................................................................... 16 4.10 Constructed Site Drainage Feature ........................................................................ 16 4.11 Sediment Basins ........................................................................................................ 17 4.12 Chemical Treatment ................................................................................................ 17 4.13 Dewatering Practices .............................................................................................. 17 4.14 Other Stormwater Controls ...................................................................................... 18 4.15 Site Stabilization ........................................................................................................ 18 SECTION 5: POLLUTION PREVENTION STANDARDS ................................................................. 21 5.1 Potential Sources of Pollution .................................................................................. 21 5.2 Spill Prevention and Response ................................................................................ 22 5.3 Fueling and Maintenance of Equipment or Vehicles ........................................... 23 5.4 Washing of Equipment and Vehicles ..................................................................... 23 5.5 Storage, Handling, and Disposal of Building Products, Materials, and Wastes ... 23 5.6 Washing of Applicators and Containers used for Paint, Concrete or Other Materials .................................................................................................................................. 26 5.7 Fertilizers .................................................................................................................... 26 5.8 Other Pollution Prevention Practices ...................................................................... 27 SECTION 6: INSPECTION, MAINTENANCE, AND CORRECTIVE ACTION ................................. 28 6.1 Inspection Personnel and Procedures .................................................................... 28 6.2 Corrective Action ..................................................................................................... 29 6.3 Delegation of Authority ........................................................................................... 30 Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA iii SECTION 7: TURBIDITY BENCHMARK MONITORING FROM DEWATERING DISCHARGES ....... 31 SECTION 8: CERTIFICATION AND NOTIFICATION ................................................................... 32 SWPPP APPENDICES ................................................................................................................. 33 Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 1 SECTION 1: CONTACT INFORMATION/RESPONSIBLE PARTIES 1.1 Operator(s) / Subcontractor(s) Operator(s): Town of Barnstable Department of Public Works Mike Tieu, P.E. 382 Falmouth Road Hyannis, MA 02601 508-790-6400 Michael.Tieu@town.barnstable.ma.us Subcontractor(s): Emergency 24-Hour Contact: Barnstable Department of Public Works Mike Tieu 508-790-6400 / 774-487-7816 Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 2 1.2 Stormwater Team Stormwater Team Name and/or Position, and Contact Responsibilities I Have Completed Training Required by CGP Part 6.2 I Have Read the CGP and Understand the Applicable Requirements Mike Tieu, P.E. Senior Project Manager – Water Sewer Barnstable Department of Public Works 508-790-6400 / 774-487-7816 Michael.Tieu@town.barnstable.ma.us 24-hour emergency response ☐ Yes ☐ No ☐ Yes Date: Contractor personnel to be determined SWPPP compliance, installation, maintenance, and/or repair of stormwater controls, taking corrective action ☐ Yes ☐ No ☐ Yes Date: Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 3 Stormwater Team Members Who Conduct Inspections Pursuant to CGP Part 4 Name and/or Position and Contact Training(s) Received Date Training(s) Completed If Training is a Non-EPA Training, Confirm that it Satisfies the Minimum Elements of CGP Part 6.3.b Taylor Templeton Environmental Scientist, Kleinfelder 508-370-8256 ttempleton@kleinfelder.com EPA Construction General Permit Site Inspector Training Course Date: 4/12/2023 ☐ Principles and practices of erosion and sediment control and pollution prevention practices at construction sites ☐ Proper installation and maintenance of erosion and sediment controls and pollution prevention practices used at construction sites ☐ Performance of inspections, including the proper completion of required reports and documentation, consistent with the requirements of Part 4 Emma Mrowka Environmental Scientist, Kleinfelder 845-231-2519 emrowka@kleinfelder.com EPA Construction General Permit Site Inspector Training Course Date: 10/14/2023 ☐ Principles and practices of erosion and sediment control and pollution prevention practices at construction sites ☐ Proper installation and maintenance of erosion and sediment controls and pollution prevention practices used at construction sites ☐ Performance of inspections, including the proper completion of required reports and documentation, consistent with the requirements of Part 4 Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 4 SECTION 2: SITE EVALUATION, ASSESSMENT, AND PLANNING 2.1 Project/Site Information This SWPPP was prepared on behalf of The Town of Barnstable (Barnstable) by Kleinfelder, Inc. (Kleinfelder) to support the drinking water improvement projects located at the Straightway and Hyannisport/Simmons Pond sites in Barnstable, Massachusetts. Project Name and Address Project/Site Name: Straightway Water Treatment Facility Street/Location: Town Land along Straightway, adjacent to Ben’s Pond and Simmon’s Pond City: Barnstable State: Massachusetts ZIP Code: 02601 County or Similar Government Division: Barnstable County Project Latitude/Longitude Latitude: 41.64468º N (decimal degrees) Longitude: - 70.31025 º W (decimal degrees) Latitude/longitude data source: ☐ Map ☐ GPS ☒ Other (please specify): Google Maps Horizontal Reference Datum: ☐ NAD 27 ☐ NAD 83 ☒ WGS 84 Additional Site Information Is your site located on Indian country lands, or on a property of religious or cultural significance to an Indian Tribe? ☐ Yes ☒ No If yes, provide the name of the Indian Tribe associated with the area of Indian country (including the name of Indian reservation if applicable), or if not in Indian country, provide the name of the Indian Tribe associated with the property: N/A 2.2 Discharge Information Does your project/site discharge stormwater into a Municipal Separate Storm Sewer System (MS4)? Are there any waters of the U.S. within 50 feet of your project’s earth disturbances? ☐ Yes ☒ No ☒ Yes ☐ No Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 5 For each point of discharge, provide a point of discharge ID (a unique 3-digit ID, e.g., 001, 002), the name of the first receiving water that receives stormwater directly from the point of discharge and/or from the MS4 that the point of discharge discharges to, and the following receiving water information, if applicable: Point of Discharge ID Name of receiving water that receives stormwater discharge: Is the receiving water impaired (on the CWA 303(d) list)? If yes, list the pollutants that are causing the impairment: Has a TMDL been completed for this receiving waterbody? If yes, list TMDL Name and ID: Pollutant(s) for which there is a TMDL: Is this receiving water designated as a Tier 2, Tier 2.5, or Tier 3 water? If yes, specify which Tier (2, 2.5, or 3)? DP-1 Ben’s Pond (Ultimately to Halls Creek) ☐ Yes ☒ No ☒ Yes ☐ No MA96-93 ID: 42356 Fecal Coliform ☒ Yes ☐ No Tier 2 DP-2 Overland to West (Ultimately to Halls Creek) ☐ Yes ☒ No ☒ Yes ☐ No MA96-93 ID: 42356 Fecal Coliform ☒ Yes ☐ No Tier 2 DP-3 Simmon’s Pond (Ultimately to Halls Creek) ☐ Yes ☒ No ☒ Yes ☐ No MA96-93 ID: 42356 Fecal Coliform ☒ Yes ☐ No Tier 2 Note: Per the List of Tier 3, Tier 2, and Tier 2.5 Waters issued by the EPA as part of the 2022 Construction General Permit (CGP), under the table entry for Commonwealth of Massachusetts, except Indian Country Lands, “all wetlands that are not designated as an Outstanding Resource Water” are considered Tier 2. Therefore, discharges to DP-1 and DP-3 are considered discharges to Tier 2 receiving waters. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 5 2.3 Nature of the Construction Activities General Description of Project Provide a general description of the nature of your construction activities, including the age or dates of past renovations for structures that are undergoing demolition: The Town of Barnstable is proposing the installation of a 10,900 square foot PFAS treatment facility to support the existing Straightway well. The existing GAC tanks will be encased in a winterized structure prior to the construction of the new PFAS treatment facility. The proposed development will also include the installation of associated utilities including a tight tank sewer system, a generator, condensers, a paved driveway, closed drainage, and infiltration basins. Additionally, the project will include the installation of two pump stations to replace the Hyannisport and Simmons Pond pump stations. The existing pump stations and a portion of the existing access drive will be demolished. The remaining access drive will be resurfaced with an extension to the new Simmons Pond pump house and a security fence will be installed along its length. A tight tank sewer system is proposed near the new Hyannisport pump station. If you are conducting earth-disturbing activities in response to a public emergency, document the cause of the public emergency (e.g., mud slides, earthquake, extreme flooding conditions, widespread disruption in essential public services), information substantiating its occurrence (e.g., State disaster declaration or similar State or local declaration), and a description of the construction necessary to reestablish affected public services: N/A Business days and hours for the project: 7:30 AM – 4:30 PM Size of Construction Site Size of Property 3.65 acres of Town property Total Area Expected to be Disturbed by Construction Activities 3.65 acres Maximum Area Expected to be Disturbed at Any One Time, Including On-site and Off-site Construction Support Areas 3.65 acres Type of Construction Site (check all that apply): ☐ Single-Family Residential ☐ Multi-Family Residential ☐ Commercial ☐ Industrial ☐ Institutional ☐ Highway or Road ☒ Utility ☐ Other ____________________________ Will you be discharging dewatering water from your site? ☒ Yes ☐ No If yes, will you be discharging dewatering water from a current or former Federal or State remediation site? ☐ Yes ☒ No Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 6 Pollutant-Generating Activities List and describe all pollutant-generating activities and indicate for each activity the associated pollutants or pollutant constituents that could be discharged in stormwater from your construction site. Take into account where potential spills and leaks could occur that contribute pollutants to stormwater discharges, and any known hazardous or toxic substances, such as PCBs and asbestos, that will be disturbed during construction. Pollutant-Generating Activity (e.g., paving operations; concrete, paint, and stucco washout and waste disposal; solid waste storage and disposal; and dewatering operations) Pollutants or Pollutant Constituents (e.g., sediment, fertilizers, pesticides, paints, caulks, sealants, fluorescent light ballasts, contaminated substrates, solvents, fuels) Staging Areas Soil erosion, fuel oil, gasoline, asphalt, concrete, vehicle fluids, solvents, fertilizer, glue, adhesives, curing compounds, antifreeze/coolant, hydraulic oil/fluids Construction Areas for Proposed Driveways, Buildings, and Drainage Systems (inclusive of paving and concrete activities) Soil erosion, sediment, asphalt, concrete, vehicle fluids, solvents, adhesives Dewatering Operations Soil erosion, sediment Waste Containers Construction & demolition debris, general waste Portable Toilets Sewage Vegetated areas restored to existing conditions Soil erosion, fertilizer Vehicle Fluid Tanks Fuel oil, gasoline, other vehicle fluids Construction Support Activities (only provide if applicable) Describe any construction support activities for the project (e.g., concrete or asphalt batch plants, equipment staging yards, material storage areas, excavated material disposal areas, borrow areas): Construction staging areas will be available on site on previously developed land area. Staging areas will be located at the contractor’s discretion during construction. All material stockpiles will be protected with erosion controls as required. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 7 Construction Support Activities (only provide if applicable) Contact information for construction support activity: Mike Tieu, P.E. Senior Project Manager – Water Sewer Barnstable Department of Public Works 508-790-6400 / 774-487-7816 Michael.Tieu@town.barnstable.ma.us [Repeat as necessary.] 2.4 Sequence and Estimated Dates of Construction Activities (Note: the dates listed below are subject to change based on contractor scheduling) Phase I Site Preparation, including tree clearing, demolition of existing site elements, not including existing water treatment facilities Estimated Start Date of Construction Activities for this Phase 10/17/2025 Estimated End Date of Construction Activities for this Phase 11/14/2027 Estimated Date(s) of Application of Stabilization Measures for Areas of the Site Required to be Stabilized N/A Estimated Date(s) when Stormwater Controls will be Removed 4/20/2027 Phase II Construction of proposed site features, including driveways, utility installation, new treatment facilities, drainage system, infiltration structures Estimated Start Date of Construction Activities for this Phase 11/14/2025 Estimated End Date of Construction Activities for this Phase 4/20/2027 Estimated Date(s) of Application of Stabilization Measures for Areas of the Site Required to be Stabilized 12/9/2025 Estimated Date(s) when Stormwater Controls will be Removed 4/20/2027 Phase III Decommissioning and demolition of existing water treatment facilities Estimated Start Date of Construction Activities for this Phase 11/17/2026 Estimated End Date of Construction Activities for this Phase 12/15/2026 Estimated Date(s) of Application of Stabilization Measures for Areas of the Site Required to be Stabilized N/A Estimated Date(s) when Stormwater Controls will be Removed 3/1/2027 Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 8 2.5 Authorized Non-Stormwater Discharges List of Authorized Non-Stormwater Discharges Present at the Site Authorized Non-Stormwater Discharge Will or May Occur at Your Site? Discharges from emergency fire-fighting activities ☐ Yes ☒ No Fire hydrant flushings ☒ Yes ☐ No Landscape irrigation ☒ Yes ☐ No Water used to wash vehicles and equipment ☒ Yes ☐ No Water used to control dust ☒ Yes ☐ No Potable water including uncontaminated water line flushings ☒ Yes ☐ No External building washdown (soaps/solvents are not used and external surfaces do not contain hazardous substances) ☐ Yes ☒ No Pavement wash waters ☐ Yes ☒ No Uncontaminated air conditioning or compressor condensate ☒ Yes ☐ No Uncontaminated, non-turbid discharges of ground water or spring water ☐ Yes ☒ No Foundation or footing drains ☐ Yes ☒ No Uncontaminated construction dewatering water ☒ Yes ☐ No (Note: You are required to identify the likely locations of these authorized non-stormwater discharges on your site map. See Section 2.6, below, of this SWPPP Template.) 2.6 Site Maps Site maps are provided in Appendix A. The Operator(s) shall amend these maps as needed. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 9 SECTION 3: DOCUMENTATION OF COMPLIANCE WITH OTHER FEDERAL REQUIREMENTS 3.1 Endangered Species Protection Eligibility Criterion Following the process outlined in Appendix D, under which criterion are you eligible for coverage under this permit? ☒ Criterion E: ESA Section 7 consultation has successfully concluded. Consultation between a Federal agency and the USFWS and/or NMFS under section 7 of the ESA has concluded. Consultations can be either formal or informal, and would have occurred only as a result of a separate Federal action (e.g., during application for an individual wastewater discharge permit or the issuance of a wetlands dredge and fill permit), and the consultation must have addressed the effects of your construction activity’s discharges and discharge-related activities on all ESA-listed threatened or endangered species and all designated critical habitat under the jurisdiction of each Service, as appropriate, in your action area. The result of this consultation must be either: i. A biological opinion currently in effect that determined that the action in question (taking into account the effects of your facility’s discharges and discharge-related activities) is likely to adversely affect, but is not likely to jeopardize the continued existence of listed species or result in the destruction or adverse modification of critical habitat. The biological opinion must have included the effects of your facility’s discharges and discharge-related activities on all the listed species and designated critical habitat in your action area under the jurisdiction of each Service, as appropriate. To be eligible under (i), any reasonable and prudent measures specified in the incidental take statement must be implemented; ii. Written concurrence (e.g., letter of concurrence) from the applicable Service(s) with a determination that your facility’s discharges and discharge-related activities are not likely to adversely affect ESA-listed species and/or designated critical habitat. The concurrence letter must have included the effects of your facility’s discharges and discharge-related activities on all the ESA-listed species and/or designated critical habitat on your species list(s) acquired from USFWS and/or NMFS as part of this worksheet. The consultation does not warrant reinitiation under 50 CFR §402.16; or, if reinitiation of consultation is required (e.g., due to a new species listing, critical habitat designation, or new information), the Federal action agency has reinitiated the consultation and the result of the consultation is consistent with the statements above. (Note: you must include any reinitiation documentation from the Services or consulting Federal agency with your NOI.) - ☒ Check to confirm you have provided documentation in your SWPPP as required by CGP Appendix D. Documentation: See Appendix K. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 10 3.2 Historic Property Screening Process Appendix E, Step 1 Do you plan on installing any stormwater controls that require subsurface earth disturbance, including, but not limited to, any of the following stormwater controls at your site? Check all that apply below, and proceed to Appendix E, Step 2. ☐ Dike ☐ Berm ☒ Catch Basin ☒ Pond ☒ Constructed Site Drainage Feature (e.g., ditch, trench, perimeter drain, swale, etc.) ☒ Culvert ☐ Channel ☐ Other type of ground-disturbing stormwater control: Insert Specific Type of Stormwater Control (Note: If you will not be installing any subsurface earth-disturbing stormwater controls, no further documentation is required for Section 3.2 of the Template.) Appendix E, Step 2 If you answered yes in Step 1, have prior professional cultural resource surveys or other evaluations determined that historic properties do not exist, or have prior disturbances at the site have precluded the existence of historic properties? ☒ YES ☐ NO  If yes, no further documentation is required for Section 3.2 of the Template and you may provide the prior documentation in your SWPPP.  See Appendix L. 3.3 Safe Drinking Water Act Underground Injection Control Requirements Do you plan to install any of the following controls? Check all that apply below. ☐ Infiltration trenches (if stormwater is directed to any bored, drilled, driven shaft or dug hole that is deeper than its widest surface dimension, or has a subsurface fluid distribution system) ☒ Commercially manufactured pre-cast or pre-built proprietary subsurface detention vaults, chambers, or other devices designed to capture and infiltrate stormwater flow ☒ Drywells, seepage pits, or improved sinkholes (if stormwater is directed to any bored, drilled, driven shaft or dug hole that is deeper than its widest surface dimension, or has a subsurface fluid distribution system) A stormwater infiltration chamber system is proposed beneath the northeast portion of the proposed driveway on the Straightway Campus. A drywell is proposed for the infiltration of uncontaminated process sink drainage. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 11 SECTION 4: EROSION AND SEDIMENT CONTROLS AND DEWATERING PRACTICES 4.1 Natural Buffers or Equivalent Sediment Controls Buffer Compliance Alternatives Are there any receiving waters within 50 feet of your project’s earth disturbances? ☒ YES ☐ NO Check the compliance alternative that you have chosen: ☐ (i) I will provide and maintain a 50-foot undisturbed natural buffer. ☐ (ii) I will provide and maintain an undisturbed natural buffer that is less than 50 feet and is supplemented by additional erosion and sediment controls that achieve, in combination, the sediment load reduction equivalent to a 50-foot undisturbed natural buffer. ☒ (iii) It is infeasible to provide and maintain an undisturbed natural buffer of any size, therefore I will implement erosion and sediment controls that achieve the sediment load reduction equivalent to a 50-foot undisturbed natural buffer.  A majority of the earth disturbance associated with the project will take place at least 50 feet from receiving waters, except on the Hyannisport and Simmon’s Pond portion of the project. Portions of the existing driveway and well buildings are located within 50-feet of the existing wetlands. On the Straightway campus, a small portion of the existing driveway is within the 50-foot wetland buffer. This portion of the driveway will be disturbed for utility installation and subsequently repaved.  The project includes earth disturbances within 50 feet of a receiving water associated with installation of the new well buildings and supporting infrastructure. The proposed buildings will be located over 50 feet from existing wetland resources associated with Simmon’s pond. However, site grading and driveway installation will occur within 50 feet of these wetlands. A stormwater infiltration basin will be installed within 50 feet of the wetlands near the proposed Simmon’s Pond well building. o The following exceptions to the buffer requirements apply to disturbances within the 50-foot buffer zone of this receiving water: The proposed project is associated with public drinking water supply and will disturb only previously disturbed areas within the 50-foot buffer zone. ☒ I qualify for one of the exceptions in Part 2.2.1.b. (If you have checked this box, provide information on the applicable buffer exception that applies, below.)  The project only proposes work in the 50-foot buffer zone where no natural buffer exists due to preexisting development disturbances (e.g., structures, impervious surfaces) that occurred prior to the initiation of planning for the current development of the site. Buffer Exceptions Which of the following exceptions to the buffer requirements applies to your site? Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 12 ☒ Where no natural buffer exists due to preexisting development disturbances (e.g., structures, impervious surfaces) that occurred prior to the initiation of planning for the current development of the site, you are not required to comply with the requirements in this Part.  The site areas within the 50-foot buffer have been previously disturbed. Activities within the buffer will include demolition of the existing structures, removal of existing pavement, pavement resurfacing, grading activity, utility installation, and loam and seeding. Proposed buildings are located further from wetland resources than the existing facilities. 4.2 Perimeter Controls General  Perimeter controls (compost filter tubes and straw wattles) will be installed at the edges of disturbed areas upgradient of natural buffers.  Sandbags will also be used to secure plastic sheeting over material stockpiles.  Straw Bales may also be used for select perimeter controls.  Refer to the Site Maps in Appendix A for detail. Specific Perimeter Controls Perimeter Control – Compost Filter Tube Description: Compost Filter Tubes (or filter berms) to be installed along the perimeter of the project limit of disturbance. Installation Prior to land disturbance Maintenance Requirements Remove sediment before it has accumulated to one-half of the above- ground height of any perimeter control. After a storm event, if there is evidence of stormwater circumventing or undercutting the perimeter control, extend controls and/or repair undercut areas to fix the problem. Design Specifications See Plans in Appendix A for detail. Perimeter Control - Straw Bales Description: Straw Bales are to be used as perimeter protection around soil stockpiles. Installation When establishing soil stockpiles. Prior to beginning land disturbance when protecting catch basin inlets in unpaved areas downslope of excavations. Maintenance Requirements Remove sediment before it has accumulated to one-half of the above- ground height of any perimeter control. After a storm event, if there is evidence of stormwater circumventing or undercutting the perimeter control, extend controls and/or repair undercut areas to fix the problem. Design Specifications See Plans in Appendix A for detail. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 13 Perimeter Control - Straw Wattles Description: Straw Wattles to be installed along the perimeter of the project limit of disturbance in all areas as shown on Site Maps in Appendix A Installation Prior to beginning trenching for conduit or other excavation Maintenance Requirements Remove sediment before it has accumulated to one-half of the above- ground height of any perimeter control. After a storm event, if there is evidence of stormwater circumventing or undercutting the perimeter control, extend controls and/or repair undercut areas to fix the problem. Design Specifications See Plans in Appendix A for detail. 4.3 Sediment Track-Out General  Sediment track-out will be minimized per the requirements of section 2.2.4 of the 2022 CGP. Stabilization techniques including track pads will be implemented at construction entrances to paved roads. Vehicles access will be restricted to stabilized entry/exit points. Specific Track-Out Controls Construction Entrance Track Pads Description: A stone tracking pad shall be installed where construction areas and access paths connect to pavement. Stones shall be 3”-6” washed stone. If clayey soils are encountered at the site, tracking pads are to be installed above a geotextile liner. Installation Following contractor mobilization to the site and before commencement of land disturbances related to construction. Maintenance Requirements Where sediment has been tracked-out from the site onto paved roads, sidewalks, or other paved areas outside of the site, remove the deposited sediment by the end of the same business day in which the track-out occurs or by the end of the next business day if track-out occurs on a non-business day. Remove the track-out by sweeping, shoveling, or vacuuming these surfaces, or by using other similarly effective means of sediment removal. Hosing or sweeping tracked-out sediment into any constructed or natural site drainage feature, storm drain inlet, or receiving water is prohibited. Design Specifications See Plans in Appendix A for detail. 4.4 Stockpiles or Land Clearing Debris Piles Comprised of Sediment or Soil General  Material stockpiles will be restricted to the construction staging areas shown on the Site Maps in Appendix A. Stockpiles will be prohibited within 100-foot buffers to wetlands and banks, and within 25-foot riverfront areas. Stockpiles are to be located away from natural or constructed watercourses or stormwater flow paths. All stockpiles shall be surrounded by a perimeter control such as a straw bale, straw wattle, or compost filter tube. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 14 Specific Stockpile Controls Perimeter Control (Straw Bale, Straw Wattle, or Compost Filter Tube/Sock/Berm) Description: Perimeter controls shall be installed around material stockpiles Installation When material stockpiles are established Maintenance Requirements Hosing down or sweeping soil or sediment accumulated on pavement or other impervious surfaces into any constructed or natural site drainage feature, storm drain inlet, or receiving water is prohibited. Design Specifications See Plans in Appendix A for Erosion Control details. 4.5 Minimize Dust General  Dust will be controlled using applications of water. Additional dust control methods include applications of stone, vegetative covers, and deployment of temporary barriers to control air currents. The application of calcium chloride for dust control is prohibited. Stockpiles, containers, or vehicle beds with the potential to generate dust shall be covered. Work shall be scheduled to minimize the total amount of destabilized earth exposed and susceptible to dust generation at one time. Specific Dust Controls Water Application for Dust Control Description: Apply water to exposed soils until wet. Do not excessively wet soils. Installation As needed during construction. Maintenance Requirements N/A Design Specifications A water truck shall be made available as needed for application of water and/or calcium chloride to control dust during dry periods. Vegetative Cover for Dust Control Description: Apply seeding to disturbed areas not subject to traffic. Installation As needed during construction, following local guidelines/permit requirements Maintenance Requirements Re-apply seed if it washes away or is disturbed/removed inadvertently . Design Specifications Use local native seed mixtures for stabilization. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 15 4.6 Minimize Steep Slope Disturbances General  Existing natural slopes within the site are generally shallow, and post-construction slopes, land coverages, and drainage patterns are anticipated to be restored to their pre- construction conditions. Disturbance of existing steep slopes, as well as construction of new steep slopes is anticipated for the installation of the proposed driveway on the Straightway Campus. Erosion control blankets will be installed on slopes steeper than 3H:1V.  Final slopes on site will be no steeper than 3:1. Specific Steep Slope Controls Erosion Control Blanket Description: Install erosion control blankets on all temporary slopes 3H:1V or steeper and on any permanent slope at 3:1. Installation Upon grading and preparation of steep earthen slopes. Maintenance Requirements Ensure slope surface is free of rocks, sticks, and other obstructions. Replace torn or defective blankets. Design Specifications See Plans in Appendix A. for details. 4.7 Topsoil General  Topsoil will be preserved as excavation progresses using temporary stockpiles or storage containers. Topsoil will be segregated from other naturally-occurring earth materials to the extent practicable and re-applied after construction of subsurface infrastructure is complete.  Topsoil will be preserved on site unless it is deemed unsuitable (e.g. due to contamination).  Perimeter controls (e.g. straw wattles or compost filter tubes) will be used to protect topsoil stockpiles. Specific Topsoil Controls Topsoil Segregation Description: Topsoil will be separated from other soils and stockpiles shall be surrounded by sediment barrier. Installation During excavation in vegetated areas and during stockpiling Maintenance Requirements Stockpiles are to be protected per the requirements of Section 4.4 of this SWPPP. Design Specifications See Plans in Appendix A. 4.8 Soil Compaction General Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 16  In areas where final vegetative stabilization will occur, vehicle/pedestrian traffic and access will be restricted to avoid soil compaction. For locations where infiltration practices will be employed, it will be the responsibility of the site engineer to ensure that vehicles are restricted from entering such areas. Infiltrating BMPs shall be protected from stormwater runoff until they and all tributary areas have been established. 4.9 Storm Drain Inlets General  There is one existing catch basin within the limit of disturbance as shown on the Site Maps in Appendix A. Catch basin inlet protection devices (silt sacks) shall be installed at such catch basins. For catch basins in unpaved areas, straw bales may be installed to form a sediment barrier around the catch basins. Specific Storm Drain Inlet Controls Catch Basin Inlet Protection – Silt Sacks Description: Silt Sacks shall be installed at catch basins (if any receive sediment-laden flows from the limit of disturbance). Installation Prior to land disturbance. Maintenance Requirements Clean, or remove and replace, the inlet protection measures as sediment accumulates, the filter becomes clogged, and/or performance is compromised. Where there is evidence of sediment accumulation adjacent to the inlet protection measure, remove the deposited sediment by the end of the same business day in which it is found or by the end of the following business day if removal by the same business day is not feasible. Design Specifications See Plans in Appendix A for details. Catch Basin Inlet Protection – Straw Bales Description: Straw Bale inlet protection may be installed at catch basins in unpaved areas (if any catch basins in unpaved areas receive sediment-laden flows from the limit of disturbance). Installation Prior to land disturbance. Maintenance Requirements Clean, or remove and replace, the inlet protection measures as sediment accumulates, the filter becomes clogged, and/or performance is compromised. Where there is evidence of sediment accumulation adjacent to the inlet protection measure, remove the deposited sediment by the end of the same business day in which it is found or by the end of the following business day if removal by the same business day is not feasible. Design Specifications See Plans in Appendix A for details. 4.10 Constructed Site Drainage Feature General  The project proposed the installation of multiple catch basins, infiltration basins, and an underground infiltration chamber system. These systems have overflow weirs, and flared end section outlets that will have erosion protection aprons. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 17 Specific Constructed Site Drainage Features Proposed Catch Basins Description: Catch Basins Installation Prior to final driveway paving, after initial site grading. Maintenance Requirements Monitor crossing for signs of erosion and repair as necessary. Protect from sedimentation with a silt sack until the end of construction. Design Specifications Refer to Site Maps in Appendix A for catch basin plans. Proposed Underground Infiltration Chamber Description: Underground Infiltration Chambers Installation During site grading activity Maintenance Requirements Monitor crossing for signs of erosion and repair as necessary. Protect from inlets from sedimentation with silt sack. Cap inlet pipe until construction is completed. Restrict vehicle track in this area until paving is complete. Design Specifications Refer to Site Maps in Appendix A for infiltration chamber plans. Proposed Stormwater Outlets Description: Overflow weirs and flared end sections Installation After construction of infiltration basins and closed drainage system. Maintenance Requirements Monitor crossing for signs of erosion and repair as necessary. Monitor for signs of damage from construction activity and repair as necessary. Design Specifications Refer to Site Maps in Appendix A for stormwater outlet plans. 4.11 Sediment Basins or Similar Impoundments Refer to Section 4.13 below. 4.12 Chemical Treatment Not applicable. 4.13 Dewatering Practices Proposed Infiltration Basins Description: Infiltration Basins Installation During site grading activity Maintenance Requirements Monitor crossing for signs of erosion and repair as necessary. Protect from sedimentation and vehicle traffic with straw wattle. Remove wattle at the end of construction. Design Specifications Refer to Site Maps in Appendix A for infiltration basin plans. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 18 General  The dewatering of non-contaminated non-stormwater (i.e. groundwater) or accumulated precipitation discharge of sediment-laden water into storm drains, streams, lakes or wetlands prior to sediment removal is prohibited. A dewatering bag, sediment trap, or dewatering basin shall be installed and maintained to comply with CGP Part 2.4. Specific Dewatering Practices Dewatering Practices Description: A dewatering bag, sediment trap, or dewatering basin shall be installed and maintained to comply with CGP Part 2.4. Installation Prior to commencement of dewatering operations. Maintenance Requirements For backwash water, either haul it away for disposal or return it to the beginning of the treatment process; replace and clean the filter media used in dewatering devices when the pressure differential equals or exceeds the manufacturer’s specifications. Design Specifications See Plans in Appendix A for temporary basin sizing locations and details. 4.14 Other Stormwater Controls  Not Applicable 4.15 Site Stabilization Total Amount of Land Disturbance Occurring at Any One Time ☒ Five Acres or less ☐ More than Five Acres Use this template box if you are discharging to a sediment- or nutrient-impaired water or to a water that is identified by your State, Tribe, or EPA as Tier 2, Tier 2.5, or Tier 3 for antidegradation purposes. Paved Surfaces ☐ Vegetative ☒ Non-Vegetative ☐ Temporary ☒ Permanent Description:  Bituminous asphalt pavement and/or concrete within the parking and walking areas. Installation Summer 2025 Completion Fall 2025 (Re-pavement of disturbed paved areas should take place on the same day that construction is performed). Maintenance Requirements N/A Design Specifications Refer to Plans in Appendix A. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 19 Temporary Seeding/Mulching ☒ Vegetative ☐ Non-Vegetative ☒ Temporary ☐ Permanent Description:  Application of temporary seeding or mulch may be required throughout the site during the course of construction to stabilize surfaces or temporary soil stockpiles for erosion and dust control. Installation As needed throughout the project Completion As soon as practicable if permanent seeding cannot be applied Maintenance Requirements N/A Design Specifications TBD in Construction Documents Permanent Seed Mix Application ☒ Vegetative ☐ Non-Vegetative ☐ Temporary ☒ Permanent Description:  Application of wetland and upland seed mixes is required to restore existing vegetated areas. Installation As needed throughout the project Completion As soon as practicable if permanent seeding cannot be applied Maintenance Requirements N/A Design Specifications TBD in Construction Documents Use this template box if unforeseen circumstances have delayed the initiation and/or completion of vegetative stabilization. Note: You will not be able to include this information in Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 20 your initial SWPPP. If you are affected by circumstances such as those described in CGP Part 2.2.14.b.ii, you will need to modify your SWPPP to include this information. Insert name of site stabilization practice ☐ Vegetative ☐ Non-Vegetative ☐ Temporary ☐ Permanent Description:  Insert description of stabilization practice to be installed  Note how design will meet requirements of Part 2.2.14.b.ii Justification Insert description of circumstances that prevent you from meeting the deadlines required in CGP CGP Parts 2.2.14.a Installation and completion schedule Vegetative Measures: Describe the schedule you will follow for initiating and completing vegetative stabilization  Approximate installation date: Insert approximate date  Approximate completion date: Insert the approximate date Non-Vegetative Measures: (Must be completed within 14 days of the cessation of construction if disturbing 5 acres or less; within 7 days if disturbing more than 5 acres)  Approximate installation date: Insert the approximate date  Approximate completion date: Insert the approximate date Maintenance Requirements Insert maintenance requirements for the stabilization practice Design Specifications Include copies of design specifications here [Repeat as needed for additional stabilization practices.] Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 21 SECTION 5: POLLUTION PREVENTION CONTROLS 5.1 Potential Sources of Pollution Construction Site Pollutants Pollutant-Generating Activity Pollutants or Pollutant Constituents (That could be discharged if exposed to stormwater) Location on Site (Or reference SWPPP site map where this is shown) Construction entrance track pad Sediment At construction entrance track pads Clearing, grading, excavating, and un- stabilized areas Sediment; Trash/Debris Areas within the limit of disturbance Pavement restoration activities Asphalt and products from construction vehicles Areas within the limit of disturbance Concrete washout and waste Heavy metals; pH; Trash/Debris Designated washout area Demolition and debris disposal Sediment; Trash/Debris Areas within the limit of disturbance Dewatering operations Sediment; Nutrients As needed within the limit of disturbance Material delivery and Storage Sediment; Nutrients; Heavy metals; pH; Pesticides/Herbicides; Oil/Grease; Trash/Debris; Hazardous Chemicals Designated staging area Material used during building process Nutrients; Heavy metals; pH; Pesticides/Herbicides; Oil/Grease; Trash/Debris; Hazardous Chemicals Areas within the limit of disturbance Vehicle/equipment fueling and storage Oil/Grease; Hazardous Chemicals Areas within the limit of disturbance Solid waste/trash/debris Trash/Debris; Hazardous Chemicals Designated staging area Landscaping/restoration of disturbed vegetated areas Sediment; Nutrients All disturbed existing vegetated areas Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 22 5.2 Spill Prevention and Response It shall be the responsibility of the construction site supervisor to create and adopt a spill control plan. This plan must include measures to stop the source of the spill, contain, clean up, and dispose of the spill and any materials contaminated by the spill. Responsible personnel shall be identified and trained for spill prevention and control. The construction site supervisor will train all personnel in the proper handling and cleanup of spilled Hazardous Substances or Oil. No spilled Hazardous Substances or Oil will be allowed to come in contact with stormwater discharges. If such contact occurs, the storm water discharge will be contained on site until appropriate measures in compliance with state and federal regulations are taken to dispose of such contaminated stormwater. It shall be the responsibility of the Owner to be properly trained, and to train all personnel in spill prevention and clean up procedures. In order to prevent or minimize the potential for a spill of Hazardous Substances or Oil to come into contact with stormwater, the following steps will be implemented: a) All Hazardous Substances or Oil (such as pesticides, petroleum products, fertilizers, detergents, construction chemicals, acids, paints, paint solvents, and cleaning solvents, etc.) will be stored in a secure location, with their lids on, preferably under cover, when not in use. b) The minimum practical quantity of all such materials will be kept at the site. c) A spill control and containment kit (containing, for example, absorbent materials, acid neutralizing powder, brooms, dust pans, mops, rags, gloves, goggles, plastic and metal trash containers, etc.) will be provided at the storage site. d) Manufacturer's recommended methods for spill cleanup will be clearly posted and site personnel will be trained regarding these procedures and the location of the information and cleanup supplies. e) It is the Operators responsibility to ensure that all Hazardous Waste discovered or generated at the site is disposed of properly by a licensed hazardous material disposal company. The Operator is responsible for not exceeding Hazardous Waste storage requirements mandated by the EPA or state and local authority. In the event of a spill, the following steps will be considered appropriate as part of a spill prevention and control plan. 1. Contain any liquid 2. Stop the source of the spill 3. Cover the spill with absorbent materials, including sawdust or kitty litter. 4. Spills shall not be flushed down into storm drain systems or to any environmentally sensitive areas. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 23 5. Dispose of all contaminated materials in accordance with the manufacturer’s instructions, state, and local requirements. 6. Spills that exceed reportable quantity levels (RQ) or reportable materials shall be reported and documented. Notify the Town of Barnstable Fire Department and the Emergency Response Section at the Massachusetts Department of Environmental Protection (MassDEP) as soon as a spill is identified. 7. The permitting authority shall be notified within 5 days. 8. This SWPPP must be updated within 14-days to provide a written account of the spill. 5.3 Fueling and Maintenance of Equipment or Vehicles General  No fueling or maintenance of vehicles or equipment shall occur on site. 5.4 Washing of Equipment and Vehicles General  Phosphorous- and nitrogen-containing detergents are used in wash water for cleaning vehicles. Excesses of these nutrients can be a major source of water pollution. Use detergents only as recommended and limit their use on the site. Do not dump wash water containing detergents into the storm drain system; direct it to a sanitary sewer or contain it so that it can be treated at a wastewater treatment plant. 5.5 Storage, Handling, and Disposal of Building Products, Materials, and Wastes 5.5.1 Building Materials and Building Products General  Storage of building materials and building products will be restricted to the construction staging area. Upon completion of all work, the construction staging area and other storage areas within the limit of disturbance shall be cleared of debris/waste/unused material and returned to pre-construction conditions. Specific Pollution Prevention Practices Storage and Management of Building Materials and Building Products Description: Hazardous Waste Handling and Disposal Procedure Implementation Throughout the duration of construction. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 24 Storage and Management of Building Materials and Building Products Maintenance Requirements  Inspect the site daily to ensure that stored materials are kept outside of wetland resource areas and buffer zones. Maintain barriers surrounding unconsolidated material and replace any barriers that appear breached or broken.  Consult with local waste management authorities to determine disposal requirements for all hazardous material.  Do not mix surplus products together prior to disposal unless specifically recommended by the manufacturer.  Consult the manufacturer recommendations prior to disposing hazardous material. Design Specifications N/A 5.5.2 Pesticides, Herbicides, Insecticides, Fertilizers, and Landscape Materials General  Pesticide use shall be limited to circumstances where problematic invasive insect or animal species are discovered during construction (e.g. Lycorma delicatula, Spotted Lanternfly). Herbicides may be used to control invasive plant species. Specific Pollution Prevention Practices Pesticide/Herbicide Management Description: The following practices shall be utilized to reduce the risks of pesticide and herbicide usage. Implementation As needed throughout the project Maintenance Requirements • Handle the materials as infrequently as possible. • Observe all applicable Federal, State, and local regulations when using, handling, or disposing of these materials. Design Specifications N/A 5.5.3 Diesel Fuel, Oil, Hydraulic Fluids, Other Petroleum Products, and Other Chemicals General  Oil, gasoline, lubricants, and asphaltic substances such as paving materials are considered petroleum products. Petroleum products will most likely be used in areas where pavement restoration is occurring and at vehicle storage areas or areas of onsite fueling or equipment maintenance. Specific Pollution Prevention Practices Vehicle Storage and Refueling Description: Spill risk reduction practices for petroleum products Implementation For as long as vehicles and construction equipment are on site. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 25 Vehicle Storage and Refueling Maintenance Requirements • Handle the materials as infrequently as possible. • A petroleum specific spill clean up kit shall be available on-site. • Where possible, store petroleum products in covered areas and construct containment dikes to retain any spills. • All spills shall be contained and cleaned up immediately • Regularly check vehicles for gas and oil leaks. Design Specifications N/A 5.5.4 Hazardous or Toxic Waste General  Hazardous Products may include but are not limited to paints, acids for cleaning masonry surfaces, cleaning solvents, adhesives, and concrete curing compounds and additives. Specific Pollution Prevention Practices Hazardous Waste Management Description: The following practices will help to avoid pollution of stormwater by these products. Implementation As needed throughout construction. Maintenance Requirements • Have equipment to contain and clean up spills of hazardous materials in the areas where these materials are stored or used. • Contain and clean up spills immediately after they occur. • Keep materials in a dry covered area. Design Specifications N/A 5.5.5 Construction and Domestic Waste General  The disposal of building materials and other construction/demolition wastes will be managed carefully. Construction wastes that may be encountered on site include the following: o Small trees and shrubs removed during clearing and grubbing o Packaging materials (including wood, paper, plastic, etc.) o Pipe segments from the old culverts to be demolished as part of the project o Scrap or surplus building materials (scrap metals, rubber, conduit segments, plastic, and other solid waste materials) o Liquid wastes, such as solvents used during construction. Specific Pollution Prevention Practices Construction Waste Management Description: Construction Waste Management Implementation As needed throughout the project Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 26 Construction Waste Management Maintenance Requirements Before construction begins, an area within the project limits will be designated as a waste collection area. A waste collection time will be arranged so that the containers do not overflow. In the event that a container does spill, cleanup will be provided immediately. The construction waste will be collected, removed, and disposed of only at authorized disposal areas. All waste shall be disposed of in a manner consistent with federal, state and local regulations. Construction debris shall be disposed of daily to avoid exposure to precipitation Design Specifications N/A 5.5.6 Sanitary Waste General  Portable toilets shall be used to collect sanitary waste. Portable toilet units shall be placed on level surfaces to minimize risk of tip-over. Locations for portable toilets shall be restricted to upland areas outside of wetland resource area buffer zones. Sanitary waste haulers licensed in Massachusetts will be contracted to regularly remove the sanitary waste and to maintain portable toilet facilities in good working order. 5.6 Washing of Applicators and Containers used for Stucco, Paint, Concrete, Form Release Oils, Cutting Compounds, or Other Materials General  Concrete washout area shall be provided as needed in an upland location and outside of resource area buffer zones within the limits of work. Specific Pollution Prevention Practices Concrete Washout Area Description: Concrete Washout Areas: ▪ Choose an upland location within the limits of work, surround the area with filter socks or silt fence, and sign the area as “Concrete Washout”. ▪ All tools used for concrete placement shall be washed into the washout area. Implementation Washout area shall be installed as needed when concrete is used onsite. Maintenance Requirements Dispose of material at an approved offsite location when height of the concrete material reaches half the height of the barrier forming the edge of the washout area (e.g. straw bales) Design Specifications See Site Maps provided in Appendix A. 5.7 Application of Fertilizers General  Fertilizers and detergents contain nutrients such as phosphorous and nitrogen which can contribute to water pollution. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 27 Specific Pollution Prevention Practices Fertilizer Management Description: The following practices should be utilized to reduce the risks of using fertilizers/detergent products. Implementation As needed during project construction Maintenance Requirements ▪ Apply fertilizer and use detergents only in the recommended manner and only in recommended amounts. Limit application to the minimum area necessary. ▪ Reduce the exposure of nutrients to storm water runoff by working the fertilizer deep into the soil (depth of 4 to 6 inches) instead of letting it remain on the surface. ▪ Apply fertilizer more frequently, but at lower application rates. ▪ Hydro-seeding where lime and fertilizers are applied to the ground surface in one application should be limited where possible. ▪ Limit the use of detergents onsite; wash water containing detergents should not be discharged into the storm water system. Design Specifications N/A 5.8 Other Pollution Prevention Practices Not applicable. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 28 SECTION 6: INSPECTION, MAINTENANCE, AND CORRECTIVE ACTION 6.1 Inspection Personnel and Procedures Site Inspection Schedule Select the inspection frequency(ies) that applies, based on CGP Parts 4.2, 4.3, or 4.4 (Note: you may be subject to different inspection frequencies in different areas of the site. Check all that apply and indicate which portion(s) of the site it applies to.) Standard Frequency: ☐ Every 7 calendar days ☐ Every 14 calendar days and within 24 hours of either:  A storm event that produces 0.25 inches or more of rain within a 24-hour period (including when there are multiple, smaller storms that alone produce less than 0.25 inches but together produce 0.25 inches or more in 24 hours), or  A storm event that produces 0.25 inches or more of rain within a 24-hour period on the first day of a storm and continues to produce 0.25 inches or more of rain on subsequent days (you conduct an inspection within 24 hours of the first day of the storm and within 24 hours after the last day of the storm that produces 0.25 inches or more of rain (i.e., only two inspections would be required for such a storm event)), or  A discharge caused by snowmelt from a storm event that produces 3.25 inches or more of snow within a 24-hour period. Increased Frequency (if applicable): For areas of sites discharging to sediment or nutrient-impaired waters or to waters designated as Tier 2, Tier 2.5, or Tier 3 ☒ Every 7 days and within 24 hours of either:  A storm event that produces 0.25 inches or more of rain within a 24-hour period, or  A discharge caused by snowmelt from a storm event that produces 3.25 inches or more of snow within a 24-hour period. Reduced Frequency (if applicable) For stabilized areas ☐ Twice during first month, no more than 14 calendar days apart; then once per month after first month until permit coverage is terminated consistent with Part 9 in any area of your site where the stabilization steps in 2.2.14.a have been completed.  Specify locations where stabilization steps have been completed  Insert date that they were completed (Note: It is likely that you will not be able to include this in your initial SWPPP. If you qualify for this reduction (see CGP Part 4.4.1), you will need to modify your SWPPP to include this information. If construction activity resumes in this portion of the site at a later date, the inspection frequency immediately increases to that required in Parts 4.2 and 4.3, as applicable.) Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 29 For stabilized areas on “linear construction sites” (as defined in Appendix A) ☐ Twice during first month, no more than 14 calendar days apart; then once more within 24 hours of a storm event that produces 0.25 inches or more of rain within a 24-hour period, or within 24 hours of a snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period  Specify locations where stabilization steps have been completed  Insert date that they were completed (Note: It is likely that you will not be able to include this in your initial SWPPP. If you qualify for this reduction (see CGP Part 4.4.1), you will need to modify your SWPPP to include this information.) For arid, semi-arid, or drought-stricken areas during seasonally dry periods or during drought ☐ Once per month and within 24 hours of either:  A storm event that produces 0.25 inches or more of rain within a 24-hour period, or  A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period. Insert beginning and ending month identified as the seasonally dry period for your area or the valid period of drought:  Beginning month of the seasonally dry period: Insert approximate date  Ending month of the seasonally dry period: Insert approximate date For frozen conditions where construction activities are being conducted ☐ Once per month Insert beginning and ending dates of frozen conditions on your site:  Beginning date of frozen conditions: Insert approximate date  Ending date of frozen conditions: Insert approximate date For frozen conditions where construction activities are suspended ☐ Inspections are temporarily suspended Insert beginning and ending dates of frozen conditions on your site:  Beginning date of frozen conditions: Insert approximate date  Ending date of frozen conditions: Insert approximate date Dewatering Inspection Schedule Select the inspection frequency that applies based on CGP Part 4.3.2 Dewatering Inspection ☒ Once per day on which the discharge of dewatering water occurs. Rain Gauge Location (if applicable) Rainfall observations from Hyannis (KMAHYANN24) shall be used to determine whether a rain event of 0.25 inches or greater has occurred. Inspection Report Forms See Appendix D for Site Inspection and Dewatering Inspection Forms. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 30 6.2 Corrective Action The contractor shall take corrective action if any of the items listed below occur at the Site 1. A stormwater control needs a significant repair or a new or replacement control is needed, or, it is necessary to repeatedly (i.e., 3 or more times) conduct the same routine maintenance fix to the same control at the same location (unless you document in your inspection report that the specific reoccurrence of this same problem should still be addressed as a routine maintenance fix); 2. A stormwater control necessary to comply with the requirements of this permit was never installed, or was installed incorrectly; 3. Discharges are not meeting applicable water quality standards; 4. A prohibited discharge has occurred (see Part 1.3); 5. During discharge from site dewatering activities: a. The weekly average of your turbidity monitoring results exceeds the 50 NTU benchmark; or b. You observe or you are informed by EPA, State, or local authorities of the presence of any of the following at the point of discharge to a receiving water flowing through or immediately adjacent to your site and/or to constructed or natural site drainage features or storm drain inlets:  sediment plume  suspended solids  unusual color  presence of odor  decreased clarity  presence of foam  visible sheen on the water surface or visible oily deposits on the bottom or shoreline of the receiving water 6. EPA requires corrective action as a result of permit violations found during an inspection carried out under Part 4.8. Deadlines for completing corrective actions are detailed in Appendix C. Corrective Action Logs See Appendix E of this SWPPP. 6.3 Delegation of Authority Duly Authorized Representative(s) or Position(s): Insert Company or Organization Name Insert Name Insert Position Insert Address Insert City, State, Zip Code Insert Telephone Number Insert Fax/Email Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 31 SECTION 7: TURBIDITY BENCHMARK MONITORING FOR DEWATERING DISCHARGES For sites discharging dewatering water to “sensitive waters” (i.e., receiving waters listed as impaired for sediment or a sediment-related parameter, or receiving waters designated as a Tier 2, Tier 2.5, or Tier 3 for antidegradation purposes) it is required to comply with the turbidity benchmark monitoring requirements in Part 3.3 of the 2022 CGP and document the procedures used at your site in the SWPPP pursuant to Part 7.2.8. A summary of these requirements is included in this section. As stated in Section 2.2 above, the receiving waters for this project (both being unnamed tributaries to Turner Pond) are considered a Tier 2 Water. Therefore, turbidity benchmark monitoring is required for this project as detailed below. Turbidity Monitoring Requirements At least one turbidity sample from dewatering discharges will be collected each day a discharge occurs. Samples will be taken at all points where dewatering water is discharged. Samples will be taken after the dewatering water has been treated by installed treatment devices and prior to its discharge off site into a receiving water, constructed or natural site drainage feature, or storm drain inlet. Samples taken will be representative of the dewatering discharge for any given day as required in Appendix G of the 2022 CGP. Samples will be measured using a turbidity meter that reports results in nephelometric turbidity units (NTUs). The Contractor is required to use the meter, and conduct a calibration verification prior to each day’s use, consistent with the manufacturer’s instructions. Turbidity Benchmark In accordance with the 2022 CGP Part 3.3.2, the benchmark threshold for turbidity is 50 NTUs. The EPA has the authority to authorize the use of an alternate benchmark in accordance with Part 3.3.2b. Prior to submitting an NOI, the Contractor may request that EPA approve a benchmark for your site that is higher than 50 NTUs if you have information demonstrating the higher number is the same as your receiving water’s water quality standard for turbidity. Turbidity Monitoring and Housekeeping Weekly turbidity averages will be compared to the 50 NTU benchmark or alternate approved benchmark if approved by the EPA. If the weekly average of your turbidity monitoring results exceeds the standard, corrective actions will be taken in accordance with Part 5.2.2 of the CGP. If conducting turbidity monitoring for more than one dewatering discharge point, a weekly average turbidity value for each discharge point will be collected and compare to the turbidity benchmark. Weekly average turbidity reports must be submitted to EPA no later than 30 days following the end of each monitoring quarter. If there are monitoring weeks in which there was no dewatering discharge, or if there is a monitoring quarter with no dewatering discharge, indicate this in your turbidity monitoring report. Reporting timelines are as follows: Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 32 Monitoring Quarter 1: • Months: January 1 – March 31 • Reporting Deadline: April 30 Monitoring Quarter 2: • Months: April 1 – June 30 • Reporting Deadline: July 30 Monitoring Quarter 3: • Months: July 1 – September 30 • Reporting Deadline: October 30 Monitoring Quarter 4: • Months: October 1 – December 31 • Reporting Deadline: January 30 Turbidity monitoring reports will be submitted using EPA’s NPDE eReporting Tool (NeT). For each day that monitoring is required, the person collecting samples will record the date, exact place, and time of sampling or measurements as well as the analytical techniques or methods used and the results of all analysis. Monitoring information including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this permit, and records of all data used to complete the application for this permit, will be retained for a period of at least three years from the date this permit expires or from the date authorization is terminated. SECTION 8: CERTIFICATION AND NOTIFICATION I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Name: Mike Tieu Title: Senior Project Manager – Water & Sewer Signature: Date: Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA 33 SWPPP APPENDICES Attach the following documentation to the SWPPP: Appendix A – Site Maps Appendix B – Copy of 2022 CGP Appendix C – NOI and EPA Authorization Email Appendix D – Site Inspection Form and Dewatering Inspection Form (if applicable) Appendix E – Corrective Action Log Appendix F – SWPPP Amendment Log Appendix G – Subcontractor Certifications/Agreements Appendix H – Grading and Stabilization Activities Log Appendix I – Training Documentation Appendix J – Delegation of Authority Appendix K – Endangered Species Documentation Appendix L – Historic Preservation Documentation Appendix M – Rainfall Gauge Recording Appendix N – Turbidity Meter Manual and Manufacturer’s Instructions Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix A – Site Maps Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix B – Copy of 2022 CGP Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix C – Copy of NOI and EPA Authorization Email INSERT COPY OF NOI AND EPA'S AUTHORIZATION EMAIL PROVIDING COVERAGE UNDER THE CGP Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix D – Copy of Site and Dewatering Inspection Forms 2022 Construction General Permit Site Inspection Report Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: ________________________________ Page 1 of 7 Section A – General Information (If necessary, complete additional inspection reports for each separate inspection location.) Inspector Information Inspector Name: Title: Company Name: Email: Address: Phone Number: Inspection Details Inspection Date: Inspection Location: Inspection Start Time: Inspection End Time: Current Phase of Construction: Weather Conditions During Inspection: Did you determine that any portion of your site was unsafe for inspection per CGP Part 4.5? ☐ Yes ☐ No If “Yes,” provide the following information: Location of unsafe conditions: The conditions that prevented you inspecting this location: Indicate the required inspection frequency: (Check all that apply. You may be subject to different inspection frequencies in different areas of the site.) Standard Frequency (CGP Part 4.2): ☐ At least once every 7 calendar days; OR ☐ Once every 14 calendar days and within 24 hours of the occurrence of either:  A storm event that produces 0.25 inches or more of rain within a 24-hour period, or  A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period Increased Frequency (CGP Part 4.3.1) (If site discharges to sediment or nutrient-impaired waters or to waters designated as Tier 2, Tier 2.5, or Tier 3): ☐ Once every 7 calendar days and within 24 hours of the occurrence of either:  A storm event that produces 0.25 inches or more of rain within a 24-hour period, or  A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period 2022 Construction General Permit Site Inspection Report Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: ________________________________ Page 2 of 7 Reduced Frequency (CGP Part 4.4): ☐ For stabilized areas: Twice during first month, no more than 14 calendar days apart; then once per month after first month until permit coverage is terminated ☐ For stabilized areas on “linear construction sites”: Twice during first month, no more than 14 calendar days apart; then once more within 24 hours of the occurrence of either:  A storm event that produces 0.25 inches or more of rain within a 24-hour period, or  A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period ☐ For arid, semi-arid, or drought-stricken areas during seasonally dry periods or during drought: Once per month and within 24 hours of the occurrence of either:  A storm event that produces 0.25 inches or more of rain within a 24-hour period, or  A snowmelt discharge from a storm event that produces 3.25 inches or more of snow within a 24-hour period ☐ For frozen conditions where construction activities are being conducted: Once per month Was this inspection triggered by a storm event producing 0.25 inches or more of rain within a 24-hour period? ☐ Yes ☐ No If “Yes,” how did you determine whether the storm produced 0.25 inches or more of rain? ☐ On-site rain gauge ☐ Weather station representative of site. Weather station location: Total rainfall amount that triggered the inspection (inches): Was this inspection triggered by a snowmelt discharge from a storm event producing 3.25 inches or more of snow within a 24-hour period? ☐ Yes ☐ No If “Yes,” how did you determine whether the storm produced 3.25 inches or more of snow? ☐ On-site rain gauge ☐ Weather station representative of site. Weather station location: Total snowfall amount that triggered the inspection (inches): 2022 Construction General Permit Site Inspection Report Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: ________________________________ Page 3 of 7 Section B – Condition and Effectiveness of Erosion and Sediment (E&S) Controls (CGP Part 2.2) (Insert additional rows if needed) Type and Location of E&S Control Conditions Requiring Routine Maintenance?1 If “Yes,” How Many Times (Including This Occurrence) Has This Condition Been Identified? Conditions Requiring Corrective Action?2, 3 Date on Which Condition First Observed (If Applicable)? Description of Conditions Observed 1. ☐ Yes ☐ No ☐ Yes ☐ No 2. ☐ Yes ☐ No ☐ Yes ☐ No 3. ☐ Yes ☐ No ☐ Yes ☐ No 4. ☐ Yes ☐ No ☐ Yes ☐ No 5. ☐ Yes ☐ No ☐ Yes ☐ No If the same routine maintenance was found to be necessary three or more times for the same control at the same location (including this occurrence), follow the corrective action requirements and record the required information in your corrective action log, or describe here why you believe the specific condition should still be addressed as routine maintenance: 1 Routine maintenance includes minor repairs or other upkeep performed to ensure that the site’s stormwater controls remain in effective operating condition, not including significant repairs or the need to install a new or replacement control. Routine maintenance is also required for specific conditions: (1) for perimeter controls, whenever sediment has accumulated to half or more the above-ground height of the control (CGP Part 2.2.3.c.i); (2) where sediment has been tracked-out from the site onto paved roads, sidewalks, or other paved areas (CGP Part 2.2.4.d); (3) for inlet protection measures, when sediment accumulates, the filter becomes clogged, and/or performance is compromised (CGP Part 2.2.10.b); and (4) for sediment basins, as necessary to maintain at least half of the design capacity of the basin (CGP Part 2.2.12.f) 2 Corrective actions are triggered only for specific conditions (CGP Part 5.1): 1. A stormwater control needs a significant repair or a new or replacement control is needed, or, in accordance with Part 2.1.4.c, you find it necessary to repeatedly (i.e., three (3) or more times) conduct the same routine maintenance fix to the same control at the same location (unless you document in your inspection report under Part 4.7.1.c that the specific reoccurrence of this same problem should still be addressed as a routine maintenance fix under 2.1.4); or 2. A stormwater control necessary to comply with the requirements of this permit was never installed, or was installed incorrectly; or 3. Your discharges are not meeting applicable water quality standards; or 4. A prohibited discharge has occurred (see CGP Part 1.3); or 5. During the discharge from site dewatering activities: a. The weekly average of your turbidity monitoring results exceeds the 50 NTU benchmark (or alternate benchmark if approved by EPA pursuant to Part 3.3.2.b); or b. You observe or you are informed by EPA, State, or local authorities of the presence of the conditions specified in Part 4.6.3.e. 3 If a condition on your site requires a corrective action, you must also fill out a corrective action log found at https://www.epa.gov/npdes/construction-general-permit- resources-tools-and-templates. See CGP Part 5.4 for more information. 2022 Construction General Permit Site Inspection Report Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: ________________________________ Page 4 of 7 Section C – Condition and Effectiveness of Pollution Prevention (P2) Practices and Controls (CGP Part 2.3) (Insert additional rows if needed) Type and Location of P2 Practices and Controls Conditions Requiring Routine Maintenance?1 If “Yes,” How Many Times (Including This Occurrence) Has This Condition Been Identified? Conditions Requiring Corrective Action?2, 3 Date on Which Condition First Observed (If Applicable)? Description of Conditions Observed 1. ☐ Yes ☐ No ☐ Yes ☐ No 2. ☐ Yes ☐ No ☐ Yes ☐ No 3. ☐ Yes ☐ No ☐ Yes ☐ No 4. ☐ Yes ☐ No ☐ Yes ☐ No 5. ☐ Yes ☐ No ☐ Yes ☐ No If the same routine maintenance was found to be necessary three or more times for the same control at the same location (including this occurrence), follow the corrective action requirements and record the required information in your corrective action log, or describe here why you believe the specific condition should still be addressed as routine maintenance: 2022 Construction General Permit Site Inspection Report Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: ________________________________ Page 5 of 7 Section D – Stabilization of Exposed Soil (CGP Part 2.2.14) (Insert additional rows if needed) Specific Location That Has Been or Will Be Stabilized Stabilization Method and Applicable Deadline Stabilization Initiated? Final Stabilization Criteria Met? Final Stabilization Photos Taken? Notes 1. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 2. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 3. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 4. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 5. ☐ Yes ☐ No If “Yes,” date initiated: ☐ Yes ☐ No If “Yes,” date criteria met: ☐ Yes ☐ No 2022 Construction General Permit Site Inspection Report Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: ________________________________ Page 6 of 7 4 If a dewatering discharge was occurring, you must conduct a dewatering inspection pursuant to CGP Part 4.3.2 and complete a separate dewatering inspection report. Section E – Description of Discharges (CGP Part 4.6.2) (Insert additional rows if needed) Was a discharge (not including dewatering) occurring from any part of your site at the time of the inspection?4 ☐ Yes ☐ No If “Yes,” for each point of discharge, document the following:  The visual quality of the discharge.  The characteristics of the discharge, including color; odor; floating, settled, or suspended solids; foam; oil sheen; and other indicators of stormwater pollutants.  Signs of the above pollutant characteristics that are visible from your site and attributable to your discharge in receiving waters or in other constructed or natural site drainage features. Discharge Location Observations 1. 2. 3. 4. 5. 2022 Construction General Permit Site Inspection Report Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: ________________________________ Page 7 of 7 Section F – Signature and Certification (CGP Part 4.7.2) “I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information contained therein. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information contained is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.” MANDATORY: Signature of Operator or “Duly Authorized Representative:” Signature: Date: Printed Name: Affiliation: OPTIONAL: Signature of Contractor or Subcontractor Signature: Date: Printed Name: Affiliation: General Tips for Using This Template This Site Inspection Report Template is provided to assist you in preparing site inspection reports for EPA’s 2022 Construction General Permit (CGP). If you are covered under the 2022 CGP, you can use this template to create a site inspection report form that is customized to the specific circumstances of your site and that complies with the minimum reporting requirements of Part 4.7 of the permit. Note that the use of this form is optional; you may use your own site inspection report form provided it includes the minimum information required in Part 4.7 of the CGP. This template does not address the CGP’s inspection reporting requirements related to dewatering activities. A separate inspection template has been developed specifically for dewatering activities and is available at https://www.epa.gov/npdes/construction-general-permit-resources-tools-and-templates. Keep in mind that this document is a template and not an “off-the-shelf” inspection report that is ready to use without some modification. You must first customize this form to include the specifics of your project in order for it to be useable for your inspection reports. Once you have entered all of your site- specific information into the blank fields, you may use this form to complete inspection reports. The following tips for using this template will help you ensure that the minimum permit requirements are met:  Review the inspection requirements. Before you start developing your inspection report form, read the CGP’s Part 4 inspection requirements. This will ensure that you have a working understanding of the permit’s underlying inspection requirements.  Complete all required blank fields. Fill out all blank fields. Only by filling out all fields will the template be compliant with the requirements of the permit. (Note: Where you do not need the number of rows provided in the template form for your inspection, you may delete these or cross them off as you see fit. Or, if you need more space to document your findings, you may insert additional rows in the electronic version of this form or use the bottom of the page in the field version of this form.)  Use your site map to document inspection findings. In several places in the template, you are directed to specify the location of certain features of your site, including where stormwater controls are installed and where you will be stabilizing exposed soil. You are also asked to fill in location information for unsafe conditions and the locations of any discharges occurring during your inspections. Where you are asked for location information, EPA encourages you to reference the point on your SWPPP site map that corresponds to the requested location on the inspection form. Using the site map as a tool in this way will help you conduct efficient inspections, will assist you in evaluating problems found, and will ensure proper documentation.  Complete the inspection report within 24 hours of completing a site inspection. You must complete an inspection report in accordance with Part 4.7.1 of the CGP.  Include the inspection form with your SWPPP. Once your form is complete, make sure to include a copy of the inspection form in your SWPPP in accordance with Part 7.2.7.e of the CGP.  Retain copies of all inspection reports with your records. You must also retain in your records copies of all inspection reports in accordance with the requirements in Part 4.7.3 of the CGP. These reports must be retained for at least 3 years from the date your permit coverage expires or is terminated in accordance with the requirements in Part 4.7.4 of the CGP. Instructions for Section A Inspector Name Enter the name of the person that conducted the inspection. Include the person’s contact information (title, affiliated company name, address, email, and phone number). Inspection Date and Time Enter the date you performed the inspection and the time you started and ended the inspection. Weather Conditions During Inspection Enter the weather conditions occurring during the inspection, e.g., sunny, overcast, light rain, heavy rain, snowing, icy, windy. Current Phase of Construction If this project is being completed in more than one phase, indicate which phase it is currently in. Inspection Location If your project has multiple locations where you conduct separate inspections, specify the location where this inspection is being conducted. If only one inspection is conducted for your entire project, enter “Entire Site.” If necessary, complete additional inspection report forms for each separate inspection location. Unsafe Conditions for Inspection (CGP Part 4.5.7) Inspections are not required where a portion of the site or the entire site is subject to unsafe conditions. These conditions should not regularly occur and should not be consistently present on a site. Generally, unsafe conditions are those that render the site (or a portion of it) inaccessible or that would pose a significant probability of injury to applicable personnel. Examples could include severe storm or flood conditions, high winds, and downed electrical wires. If your site, or a portion of it, is affected by unsafe conditions during the time of your inspection, provide a description of the conditions that prevented you from conducting the inspection and what parts of the site were affected. If the entire site was considered unsafe, specify the location as “Entire Site.” Inspection Frequency Check all the inspection frequencies that apply to your project. Note that you may be subject to different inspection frequencies in different areas of your site. Inspection Triggered by a Storm Event If you were required to conduct this inspection because of a storm event that produced 0.25 inches or more of rain within a 24-hour period, indicate whether you relied on an on-site rain gauge or a nearby weather station (and where the weather station is located). Also, specify the total amount of rainfall for this specific storm event. If you were required to conduct this inspection because of a snowmelt discharge from a storm event that produced 3.25 inches or more of snow within a 24- hour period, then indicate whether you relied on an on-site measurement or a nearby weather station (and where the weather station is located). Also, specify the total amount of snowfall for this specific storm event. Instructions for Section B Type and Location of Erosion and Sediment (E&S) Controls Provide a list of all erosion and sediment (E&S) controls that your SWPPP indicates will be installed and implemented at your site. This list must include at a minimum all E&S controls required by CGP Part 2.2. Include also any natural buffers established under CGP Part 2.2.1. Buffer requirements apply if your project’s earth-disturbing activities will occur within 50 feet of a discharge to receiving water. You may group your E&S controls on your form if you have several of the same type of controls (e.g., you may group “Inlet Protection Measures,” “Perimeter Controls,” and “Stockpile Controls” together on one line), but if there are any problems with a specific control, you must separately identify the location of the control, whether routine maintenance or corrective action is necessary, and in the notes section you must describe the specifics about the problem you observed. Conditions Requiring Routine Maintenance? Answer “Yes” if the E&S control requires routine maintenance as defined in footnote 1 of this template. Note that in many cases, “Yes” answers are expected and indicate a project with an active operation and maintenance program. You should also answer “Yes” if work to fix the problem is still ongoing from the previous inspection, though necessary work must be initiated immediately and completed by the end of the next business day or within seven calendar days if documented in accordance with CGP Part 2.1.4.b. If “Yes,” How Many Times (Including this Occurrence) Has this Condition Been Identified? Indicate how many times the routine maintenance has been required for the same control at the same location. Conditions Requiring Corrective Action? Answer “Yes” if you found any of the conditions listed in footnote 2 in this template to be present during your inspection (CGP Part 5.1). If you answer “Yes,” you must take corrective action and complete a corrective action log, found at https://www.epa.gov/npdes/construction-general-permit-resources-tools- and-templates. You should also answer “Yes” if work to fix the problem from a previous inspection is still ongoing, though the operator must comply with the corrective action deadlines in CGP Part 5.2. Date on Which Condition First Observed (If Applicable)? Provide the date on which the condition that triggered the need for routine maintenance or corrective action was first identified. If the condition was just discovered during this inspection, enter the inspection date. If the condition is a carryover from a previous inspection, enter the original date of the condition’s discovery. Description of Conditions Observed For each E&S control and the area immediately surrounding it, describe whether the control is properly installed and whether it appears to be working to minimize sediment discharge. Indicate also whether a new or modified control is necessary to comply with the permit. Describe any problem condition(s) you observed such as the following: 1. Failure to install or to properly install a required E&S control 2. Damage or destruction to an E&S control caused by vehicles, equipment, or personnel, a storm event, or other event 3. Mud or sediment deposits found downslope from E&S controls, including in receiving waters, or on nearby streets, curbs, or open conveyance channels 4. Sediment tracked out onto paved areas by vehicles leaving construction site 5. Noticeable erosion or sedimentation at discharge outlets or at adjacent streambanks or channels 6. Erosion of the site’s sloped areas (e.g., formation of rills or gullies) 7. E&S control is no longer working due to lack of maintenance 8. Other incidents of noncompliance Describe also why you think the problem condition(s) occurred as well as actions (e.g., routine maintenance or corrective action) you will take or have taken to fix the problem. For buffer areas, make note of whether they are marked off as required, whether there are signs of construction disturbance within the buffer, which is prohibited under the CGP, and whether there are visible signs of erosion resulting from discharges through the area. If routine maintenance or corrective action is required, briefly note the reason. If routine maintenance or corrective action has been completed, make a note of the date it was completed and what was done. If corrective action is required, note that you will need to complete a separate corrective action log describing the condition and your work to fix the problem. Routine Maintenance Need Has Been Found to be Necessary Three (3) or More Times for the Same Control at the Same Location (Including this Occurrence) If routine maintenance has been required three (3) or more times for the same control at the same location, the permit requires (CGP Part 2.1.4.c) you to fix the problem using the corrective action procedures in CGP Part 5 or to document why you believe the reoccurring problem can be addressed as a routine maintenance fix. If you believe the problem can continue to be fixed as routine maintenance, describe why you believe the specific condition should still be addressed as routine maintenance. Instructions for Section C Type and Location of Pollution Prevention (P2) Practices and Controls Provide a list of all pollution prevention (P2) practices and controls that are implemented at your site. This list must include all P2 practices and controls required by CGP Part 2.3 and those that are described in your SWPPP. Conditions Requiring Routine Maintenance? Answer “Yes” if the P2 practice or control requires routine maintenance as defined in footnote 1of this template. Note that in many cases, “Yes” answers are expected and indicate a project with an active operation and maintenance program. You should also answer “Yes” if work to fix the problem is still ongoing from the previous inspection, though necessary work must be initiated immediately and completed by the end of the next business day or within seven calendar days if documented in accordance with CGP Part 2.1.4.b. If “Yes,” How Many Times (Including this Occurrence) Has this Condition Been Identified? Indicate how many times the routine maintenance has been required for the same practice or control at the same location. Conditions Requiring Corrective Action? Answer “Yes” if you found any of the conditions listed in footnote 2 in this template to be present during your inspection (CGP Part 5.1). If you answer “Yes,” you must take corrective action and complete a corrective action log, found at https://www.epa.gov/npdes/construction-general-permit-resources-tools- and-templates. You should also answer “Yes” if work to fix the problem from a previous inspection is still ongoing, though the operator must comply with the corrective action deadlines in CGP Part 5.2. Date on Which Condition First Observed (If Applicable)? Provide the date on which the condition that triggered the need for maintenance or corrective action was first identified. If the condition was just discovered during this inspection, enter the inspection date. If the condition is a carryover from a previous inspection, enter the original date of the condition’s discovery. Description of Conditions Observed For each P2 control and the area immediately surrounding it, describe whether the control is properly installed, and whether it appears to be working to minimize or eliminate pollutant discharges. Indicate also whether a new or modified control is necessary to comply with the permit. Describe any problem condition(s) you observed such as the following: 1. Failure to install or to properly install a required P2 control 2. Damage or destruction to a P2 control caused by vehicles, equipment, or personnel, or a storm event 3. Evidence of a spill, leak, or other type of pollutant discharge, or failure to have properly cleaned up a previous spill, leak, or other type of pollutant discharge 4. Spill response supplies are absent, insufficient, or not where they are supposed to be located 5. Improper storage, handling, or disposal of chemicals, building materials or products, fuels, or wastes 6. P2 control is no longer working due to lack of maintenance 7. Other incidents of noncompliance Describe also why you think the problem condition(s) occurred as well as actions (e.g., routine maintenance or corrective action) you will take or have taken to fix the problem. If routine maintenance or corrective action is required, briefly note the reason. If routine maintenance or corrective action has been completed, make a note of the date it was completed and what was done. If corrective action is required, note that you will need to complete a separate corrective action log describing the condition and your work to fix the problem. Routine Maintenance Need Was Found to be Necessary Three (3) or More Times for the Same Control at the Same Location (Including this Occurrence) If routine maintenance has been required three (3) or more times for the same control at the same location, the permit requires (CGP Part 2.1.4.c) you to fix the problem using the corrective action procedures in CGP Part 5 or to document why you believe the reoccurring problem can be addressed as a routine maintenance fix. If you believe the problem can continue to be fixed as routine maintenance, describe why you believe the specific condition should still be addressed as routine maintenance. Instructions for Section D Specific Location That Has Been or Will Be Stabilized List all areas where soil stabilization is required to begin because construction work in that area has permanently stopped or temporarily stopped (i.e., work will stop for 14 or more days), and all areas where stabilization has been implemented (CGP Part 2.2.14). Stabilization Method and Applicable Deadline For each area, specify the method of stabilization (e.g., hydroseed, sod, planted vegetation, erosion control blanket, mulch, rock). Specify also which of the following stabilization deadlines apply to this location: 1. 5 acres or less of land disturbance occurring at any one time at site: Complete no later than 14 calendar days after stabilization initiated. 2. More than 5 acres of land disturbance occurring at any one time at site: Complete no later than 7 calendar days after stabilization initiated. 3. Arid, semi-arid, and drought-stricken areas: See CGP Part 2.2.14.b.i. 4. Unforeseen circumstances: See CGP Part 2.2.14.b.ii. 5. Discharges to a sediment- or nutrient-impaired water or to a water identified as Tier 2, 2.5, or 3 for antidegradation purposes: Complete no later than 7 days after stabilization initiated. Stabilization Initiated? For each area, indicate whether stabilization has been initiated. If “Yes,” then enter the date stabilization was initiated. Final Stabilization Criteria Met? For each area, indicate whether the final stabilization criteria in CGP Part 2.2.14.c have been met. If “Yes,” then enter the date final stabilization criteria were met. Final Stabilization Photos Taken? Answer “Yes” if you have taken photos before and after meeting the stabilization criteria as required in CGP Part 8.2.1.a. Notes For each area where stabilization has been initiated, describe the progress that has been made and what additional actions are necessary to complete stabilization. Note the effectiveness of stabilization in preventing erosion. If stabilization has been initiated but not completed, make a note of the date it is to be completed. If stabilization has been completed, make a note of the date it was completed. If stabilization has not yet been initiated, make a note of the date it is to be initiated and the date it is to be completed. Instructions for Section E You are only required to complete this section if a discharge is occurring at the time of the inspection (CGP Part 4.6.2). Was a discharge (not including dewatering) occurring from any part of your site at the time of the inspection? During your inspection, examine all points of discharge from your site, and determine whether a discharge is occurring. If a dewatering discharge was occurring, you must conduct a dewatering inspection pursuant to CGP Part 4.3.2. If there is a discharge, answer “Yes” and complete the questions below regarding the specific discharge. If there is not a discharge, answer “No” and skip to the next page. Discharge Location (Repeat as necessary if there are multiple points of discharge.) Specify the location on your site where the discharge is occurring. The location may be an outlet from a stormwater control or constructed stormwater channel, a discharge into a storm sewer inlet, or a specific point on the site. Be as specific as possible; it is recommended that you refer to a precise point on your site map. Observations Document the visual quality of the discharge and take note of the characteristics of the stormwater discharge, including color; odor; floating, settled, or suspended solids; foam; oily sheen; and other indicators of stormwater pollutants. Also, document signs of these same pollutant characteristics that are visible from your site and attributable to your discharge in receiving waters or in other constructed or natural site drainage features. Instructions for Section F Each inspection report must be signed and certified to be considered complete (CGP Part 4.7.2). Operator or “Duly Authorized Representative” – MANDATORY (CGP Appendix G Part G.11.2 and CGP Appendix H Section X) At a minimum, the site inspection report must be signed by either (1) the person who signed the NOI, or (2) a duly authorized representative of that person. The following requirements apply: If the signatory will be the person who signed the NOI for permit coverage, as a reminder, that person must be one of the following types of individuals:  For a corporation: By a responsible corporate officer. For the purpose of this subsection, a responsible corporate officer means: (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.  For a partnership or sole proprietorship: By a general partner or the proprietor, respectively.  For a municipality, State, Federal, or other public agency: By either a principal executive officer or ranking elected official. For purposes of this subsection, 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 Administrator of EPA). If the signatory will be a duly authorized representative, the following requirements must be met:  The authorization is made in writing by the person who signed the NOI (see above);  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, 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  The signed and dated written authorization is included in the SWPPP. A copy must be submitted to EPA, if requested. Sign, date and print your name and affiliation. Contractor or Subcontractor - OPTIONAL Where you rely on a contractor or subcontractor to complete the site inspection report, you should consider requiring the individual(s) to sign and certify each report. Note that this does not relieve you, the permitted operator, of the requirement to sign and certify the site inspection report as well. If applicable, sign, date, and print your name and affiliation. Note While EPA has made every effort to ensure the accuracy of all instructions contained in this template, it is the permit, not this template, that determines the actual obligations of regulated construction stormwater discharges. In the event of a conflict between this template and any corresponding provision of the CGP, you must abide by the requirements in the permit. EPA welcomes comments on this Site Inspection Report Template at any time and will consider those comments in any future revision. You may contact EPA for CGP-related inquiries at cgp@epa.gov 2022 Construction General Permit Dewatering Inspection Report Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: ________________________________ Section A – Dewatering Discharges (CGP Part 4.6.3) Complete this section within 24 hours of completing the inspection. (If necessary, complete additional inspection reports for each separate inspection location.) Inspector Information Inspector Name: Title: Company Name: Email: Address: Phone Number: Inspection Details Inspection Date: Inspection Location: Discharge Start Time: Discharge End Time: Rate of Discharge (gallons per day): Corrective Action Required?1 ☐ Yes ☐ No Describe Indicators of Pollutant Discharge at Point of Dewatering Discharge:1 Attach Photographs of: 1. Dewatering water prior to treatment by a dewatering control(s) and the final discharge after treatment; and 2. Dewatering control(s); and 3. Point of discharge to any receiving waters flowing through or immediately adjacent to the site and/or to constructed or natural site drainage features, storm drain inlets, and other conveyances to receiving waters. 1 If you observe any of the following indicators of pollutant discharge, you are required to take corrective action under Part 5.1.5.b:  a sediment plume, suspended solids, unusual color, presence of odor, decreased clarity, or presence of foam; or  a visible sheen on the water surface or visible oily deposits on the bottom or shoreline of the receiving water. 2022 Construction General Permit Dewatering Inspection Report Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: ________________________________ Section B – Signature and Certification (CGP Part 4.7.2) “I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information contained therein. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information contained is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.” MANDATORY: Signature of Operator or “Duly Authorized Representative:” Signature: Date: Printed Name: Affiliation: OPTIONAL: Signature of Contractor or Subcontractor Signature: Date: Printed Name: Affiliation: General Tips for Using This Template This Dewatering Inspection Report Template is provided to assist you in preparing dewatering inspection reports for EPA’s 2022 Construction General Permit (CGP). If you are covered under the 2022 CGP, you can use this template to create a dewatering inspection report form that complies with the minimum reporting requirements of Part 4.6.3 of the permit. Note that the use of this form is optional; you may use your own inspection report form provided it includes the minimum information required in Part 4.6.3 of the CGP. This template is for dewatering inspections only. A separate site inspection report template that does not include dewatering inspections and complies with the minimum reporting requirements of Part 4.7 of the permit is available at https://www.epa.gov/npdes/construction-general-permit-resources-tools-and- templates. If you are covered under a State CGP, this template may be helpful in developing a report that can be used for that permit; however, it will need to be modified to meet the specific requirements of that permit. If your permitting authority requires you to use a specific inspection report form, you should not use this form. The following tips for using this template will help you ensure that the minimum permit requirements are met:  Review the inspection requirements. Before you start developing your inspection report form, read the CGP’s Part 4 inspection requirements. This will ensure that you have a working understanding of the permit’s underlying inspection requirements.  Complete all required blank fields. Fill out all blank fields. Only by filling out all fields will the template be compliant with the requirements of the permit. (Note: Where you do not need the number of rows provided in the template form for your inspection, you may delete these as you see fit. Or, if you need more space to document your findings, you may insert additional rows in the electronic version of this form or use the bottom of the page in the field version of this form.)  Use your site map to document inspection findings. In several places in the template, you are directed to specify the location of certain features of your site, including where stormwater controls are installed and where you will be stabilizing exposed soil. You are also asked to fill in location information for unsafe conditions and the locations of any discharges occurring during your inspections. Where you are asked for location information, EPA encourages you to reference the point on your SWPPP site map that corresponds to the requested location on the inspection form. Using the site map as a tool in this way will help you conduct efficient inspections, will assist you in evaluating problems found, and will ensure proper documentation.  Include the inspection form with your SWPPP. Once your form is complete, make sure to include a copy of the inspection form in your SWPPP in accordance with Part 7.2.7.e of the CGP.  Retain copies of all inspection reports with your records. You must also retain copies of all inspection reports in your records in accordance with the requirements in Part 4.7.3 of the CGP. These reports must be retained for at least 3 years from the date your permit coverage expires or is terminated in accordance with the requirements in Part 4.7.4 of the CGP. Instructions for Section A Inspector Name Enter the name of the person that conducted the inspection. Include the person’s contact information (title, affiliated company name, address, email, and phone number). Inspection Date Enter the date you performed the inspection. Inspection Location If your project has multiple locations where you conduct separate dewatering inspections, specify the location where this inspection is being conducted. Otherwise, you can enter “dewatering operation.” Discharge Start and End Times Enter the approximate time the dewatering discharge started and ended on the day of the inspection. Rate of Discharge Enter the rate of discharge in gallons per day on the day of inspection. To estimate the approximate discharge rate on the day of dewatering inspection, one approach is to use the manufacturer’s design pump rating for the pump model in use. For example, a pump rated at 164 gpm (gallons per minute) by the manufacturer can be assumed to be discharging at 164 gpm in most cases. To convert to gallons per day, multiply the rate in gpm by the ratio of minutes in one-day (1,440 minutes per day), resulting in a discharge rate of 236,160 gallons per day. In cases where the dewatering discharge is being pumped over long distances or a substantial distance uphill, which will result in a reduced pump rate relative to manufacturer’s specification, the operator may improve the accuracy of the estimate by estimating the time required to fill a container of a known volume. For example, if it takes 60 seconds to fill an empty 55-gallon barrel, the estimated discharge rate is 55 gpm, or 79,200 gallons per day. Indicators of Pollutant Discharge For the point of discharge, describe any observed sediment plume, suspended solids, unusual color, presence of odor, decreased clarity, or presence of foam; and/or a visible sheen on the water surface or visible oily deposits on the bottom or shoreline of the receiving water. Corrective Action Required? Answer “Yes” if during your inspection you found any of the conditions listed above in the instructions for the Indicators of Pollutant Discharge section. If you answer “Yes,” you must take corrective action and complete a corrective action log, found at https://www.epa.gov/npdes/construction-general-permit- resources-tools-and-templates. Answer “No” if you did not observe any of the listed pollutant indicators. Photographs As required in CGP Part 8.2.1.a, attach photos of: (1) dewatering water prior to treatment by a dewatering control(s) and the final discharge after treatment; (2) the dewatering control(s); and (3) the point of discharge to any receiving waters flowing through or immediately adjacent to the site and/or to constructed or natural site drainage features, storm drain inlets, and other conveyances to receiving waters. Instructions for Section B Each inspection report must be signed and certified to be considered complete (CGP Part 4.7.2). Operator or “Duly Authorized Representative” – MANDATORY (CGP Appendix G Part G.11.2 and CGP Appendix H Section X) At a minimum, the dewatering inspection report must be signed by either (1) the person who signed the NOI, or (2) a duly authorized representative of that person. The following requirements apply: If the signatory will be the person who signed the NOI for permit coverage, as a reminder, that person must be one of the following types of individuals:  For a corporation: By a responsible corporate officer. For the purpose of this subsection, a responsible corporate officer means: (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.  For a partnership or sole proprietorship: By a general partner or the proprietor, respectively.  For a municipality, State, Federal, or other public agency: By either a principal executive officer or ranking elected official. For purposes of this subsection, 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 Administrator of EPA). If the signatory will be a duly authorized representative, the following requirements must be met:  The authorization is made in writing by the person who signed the NOI (see above);  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, 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  The signed and dated written authorization is included in the SWPPP. A copy must be submitted to EPA, if requested. Sign, date and print your name and affiliation. Contractor or Subcontractor - OPTIONAL Where you rely on a contractor or subcontractor to complete the dewatering inspection report, you should consider requiring the individual(s) to sign and certify each report. Note that this does not relieve you, the permitted operator, of the requirement to sign and certify the dewatering inspection report as well. If applicable, sign, date, and print your name and affiliation. Note While EPA has made every effort to ensure the accuracy of all instructions contained in this template, it is the permit, not this template, that determines the actual obligations of regulated construction stormwater discharges. In the event of a conflict between this template and any corresponding provision of the CGP, you must abide by the requirements in the permit. EPA welcomes comments on this Dewatering Inspection Report Template at any time and will consider those comments in any future revision. You may contact EPA for CGP-related inquiries at cgp@epa.gov Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix E – Copy of Corrective Action Log 2022 CGP Corrective Action Log Project Name: STRAIGHTWAY WATER TREATMENT FACILITY NPDES ID Number: __________________________________________ Section A – Individual Completing this Log Name: Title: Company Name: Email: Address: Phone Number: Section B – Details of the Problem (CGP Part 5.4.1.a) Complete this section within 24 hours of discovering the condition that triggered corrective action. Date problem was first identified: Time problem was first identified: What site conditions triggered this corrective action? (Check the box that applies. See instructions for a description of each triggering condition (1 thru 6).) ☐ 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5a ☐ 5b ☐ 6 Specific location where problem identified: Provide a description of the specific condition that triggered the need for corrective action and the cause (if identifiable): Section C – Corrective Action Completion (CGP Part 5.4.1.b) Complete this section within 24 hours after completing the corrective action. For site condition # 1, 2, 3, 4, or 6 (those not related to a dewatering discharge) confirm that you met the following deadlines (CGP Part 5.2.1): ☐ Immediately took all reasonable steps to address the condition, including cleaning up any contaminated surfaces so the material will not discharge in subsequent storm events. AND ☐ Completed corrective action by the close of the next business day, unless a new or replacement control, or significant repair, was required. OR ☐ Completed corrective action within seven (7) calendar days from the time of discovery because a new or replacement control, or significant repair, was necessary to complete the installation of the new or modified control or complete the repair. OR ☐ It was infeasible to complete the installation or repair within 7 calendar days from the time of discovery. Provide the following additional information: Explain why 7 calendar days was infeasible to complete the installation or repair: Provide your schedule for installing the stormwater control and making it operational as soon as feasible after the 7 calendar days: For site condition # 5a, 5b, or 6 (those related to a dewatering discharge), confirm that you met the following deadlines: ☐ Immediately took all reasonable steps to minimize or prevent the discharge of pollutants until a solution could be implemented, including shutting off the dewatering discharge as soon as possible depending on the severity of the condition taking safety considerations into account. ☐ Determined whether the dewatering controls were operating effectively and whether they were causing the conditions. ☐ Made any necessary adjustments, repairs, or replacements to the dewatering controls to lower the turbidity levels below the benchmark or remove the visible plume or sheen. Describe any modification(s) made as part of corrective action: (Insert additional rows below if applicable) Date of completion: SWPPP update necessary? If yes, date SWPPP was updated: 1. ☐ Yes ☐ No 2. ☐ Yes ☐ No Section D - Signature and Certification (CGP Part 5.4.2) “I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information contained therein. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information contained is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.” MANDATORY: Signature of Operator or “Duly Authorized Representative:” Signature: Date: Printed Name: Affiliation: OPTIONAL: Signature of Contractor or Subcontractor Signature: Date: Printed Name: Affiliation: General Instructions This Corrective Action Log Template is provided to assist you creating a corrective action log that complies with the minimum reporting requirements of Part 5.4 of the EPA’s Construction General Permit (CGP). For each triggering condition on your site, you will need to fill out a separate corrective action log. The entire form must be completed to be compliant with the requirements of the permit. (Note: In Section C, if you do not need the number of rows provided in the corrective action log, you may delete these or cross them off. Alternatively, if you need more space to describe any modifications, you may insert additional rows in the electronic version of this form or use the bottom of the page in the field version of this form.) If you are covered under a State CGP, this template may be helpful in developing a log that can be used for that permit; however, you will likely need to modify this form to meet the specific requirements of any State-issued permit. If your permitting authority requires you to use a specific corrective action log, you should not use this template. Instructions for Section A Individual completing this form Enter the name of the person completing this log. Include the person’s contact information (title, affiliated company name, address, email, and phone number). Instructions for Section B You must complete Section B within 24 hours of discovering the condition that triggered corrective action. (CGP Part 5.4) When was the problem first discovered? Specify the date and time when the triggering condition was first discovered. What site conditions triggered this corrective action? (CGP Parts 5.1 and 5.3) Check the box corresponding to the numbered triggering condition below that applies to your site. 1. A stormwater control needs a significant repair or a new or replacement control is needed, or, in accordance with Part Error! Reference source not found., you find it necessary to repeatedly (i.e., 3 or more times) conduct the same routine maintenance fix to the same control at the same location (unless you document in your inspection report under Part Error! Reference source not found. that the specific reoccurrence of this same problem should still be addressed as a routine maintenance fix under Part Error! Reference source not found.); 2. A stormwater control necessary to comply with the requirements of this permit was never installed, or was installed incorrectly; 3. Your discharges are not meeting applicable water quality standards; 4. A prohibited discharge has occurred (see Part 1.3); 5. During discharge from site dewatering activities: a. The weekly average of your turbidity monitoring results exceeds the 50 NTU benchmark (or alternate benchmark if approved by EPA pursuant to Part Error! Reference source not found.); or b. You observe or you are informed by EPA, State, or local authorities of the presence of any of the following at the point of discharge to a receiving water flowing through or immediately adjacent to your site and/or to constructed or natural site drainage features or storm drain inlets:  sediment plume  suspended solids  unusual color  presence of odor  decreased clarity  presence of foam  visible sheen on the water surface or visible oily deposits on the bottom or shoreline of the receiving water 6. EPA requires corrective action as a result of permit violations found during an inspection carried out under Part 4.8. Provide a description of the problem (CGP Part 5.4.1.a) Provide a summary description of the condition you found that triggered corrective action, the cause of the problem (if identifiable), and the specific location where it was found. Be as specific as possible about the location; it is recommended that you refer to a precise point on your site map. Instructions for Section C You must complete Section C within 24 hours after completing the correction action. (CGP Part 5.4) Deadlines for completing corrective action for condition # 1, 2, 3, 4, or 6 (if not relating to a dewatering discharge) (CGP Part 5.2.1) Check the box to confirm that you met the deadlines that apply to each triggering condition. You are always required to check the first box (i.e., Immediately took all reasonable steps to address the condition, including cleaning up any contaminated surfaces so the material will not discharge in subsequent storm events.). Only one of the next three boxes should be checked depending on the situation that applies to this corrective action. Check the second box if the corrective action for this particular triggering condition does not require a new or replacement control, or a significant repair. These actions must be completed by the close of the next business day from the time of discovery of the condition. Check the third box if the corrective action for this particular triggering condition requires a new or replacement control, or a significant repair. These actions must be completed by no later than seven calendar days from the time of discover of the condition. Check the fourth box if the corrective action for this particular triggering condition requires a new or replacement control, or a significant repair, and if it is infeasible to complete the work within seven calendar days. Additionally, you will need to fill out the table below the checkbox that requires: 1. An explanation as to why it was infeasible to complete the installation or repair within seven calendar days of discovering the condition. 2. Provide the schedule you will adhere to for installing the stormwater control and making it operational as soon as feasible after the seventh day following discovery. Note: Per Part 5.2.1.c, where these actions result in changes to any of the stormwater controls or procedures documented in your SWPPP, you must modify your SWPPP accordingly within seven calendar days of completing this work. Deadlines for completing corrective action for condition # 5a, 5b, or 6 related to a dewatering discharge (CGP Part 5.2.2) These deadlines apply to conditions relating to construction dewatering activities. Check the box to confirm that you met the deadlines that apply to each triggering condition. You are required to check all of the boxes in this section to indicate your compliance with the corrective action deadlines. List of modification(s) to correct problem Provide a list of modifications you completed to correct the problem. Date of completion Enter the date you completed the modification. The work must be completed by the deadline you indicated above. SWPPP update necessary? Check “Yes” or “No” to indicate if a SWPPP update is necessary consistent with Part 7.4.1.a in order to reflect changes implemented at your site. If “Yes,” then enter the date you updated your SWPPP. The SWPPP updates must be made within seven calendar days of completing a corrective action. (CGP Part 5.2.1.c) Instructions for Section D Each corrective action log entry must be signed and certified following completion of Section D to be considered complete. (CGP Part 5.4.2) Operator or “Duly Authorized Representative” – MANDATORY (CGP Appendix G Part G.11.2 and CGP Appendix H Section X) At a minimum, the corrective action log must be signed by either (1) the person who signed the NOI, or (2) a duly authorized representative of that person. The following requirements apply: If the signatory will be the person who signed the NOI for permit coverage, as a reminder, that person must be one of the following types of individuals:  For a corporation: By a responsible corporate officer. For the purpose of this subsection, a responsible corporate officer means: (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.  For a partnership or sole proprietorship: By a general partner or the proprietor, respectively.  For a municipality, State, Federal, or other public agency: By either a principal executive officer or ranking elected official. For purposes of this subsection, 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 Administrator of EPA). If the signatory will be a duly authorized representative, the following requirements must be met:  The authorization is made in writing by the person who signed the NOI (see above);  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, 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  The signed and dated written authorization is included in the SWPPP. A copy must be submitted to EPA, if requested. Sign, date and print your name and affiliation. Contractor or Subcontractor - OPTIONAL Where you rely on a contractor or subcontractor to complete this log and the associated corrective action, you should consider requiring the individual(s) to sign and certify each log entry. Note that this does not relieve you, the permitted operator, of the requirement to sign and certify the log as well. If applicable, sign, date, and print your name and affiliation. Recordkeeping Logs must be retained for at least 3 years from the date your permit coverage expires or is terminated. (CGP Part 5.4.4) Keep copies of your signed corrective action log entries at the site or at an easily accessible location so that it can be made immediately available at the time of an on-site inspection or upon request by EPA. (CGP Part 5.4.3) Include a copy of the corrective action log in your SWPPP. (CGP Part 7.2.7.e) Note While EPA has made every effort to ensure the accuracy of all instructions contained in this template, it is the permit, not this template, that determines the actual obligations of regulated construction stormwater discharges. In the event of a conflict between this template and any corresponding provision of the CGP, you must abide by the requirements in the permit. EPA welcomes comments on this Corrective Action Log Template at any time and will consider those comments in any future revision. You may contact EPA for CGP-related inquiries at cgp@epa.gov Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix F – SWPPP Amendment Log No. Description of the Amendment Date of Amendment Amendment Prepared by [Name(s) and Title] INSERT DATE INSERT DATE INSERT DATE INSERT DATE INSERT DATE INSERT DATE INSERT DATE INSERT DATE Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix G – Subcontractor Certifications/Agreements SUBCONTRACTOR CERTIFICATION STORMWATER POLLUTION PREVENTION PLAN Project Number: Project Title: Operator(s): As a subcontractor, you are required to comply with the Stormwater Pollution Prevention Plan (SWPPP) for any work that you perform on-site. Any person or group who violates any condition of the SWPPP may be subject to substantial penalties or loss of contract. You are encouraged to advise each of your employees working on this project of the requirements of the SWPPP. A copy of the SWPPP is available for your review at the office trailer. Each subcontractor engaged in activities at the construction site that could impact stormwater must be identified and sign the following certification statement: I certify under the penalty of law that I have read and understand the terms and conditions of the SWPPP for the above designated project and agree to follow the practices described in the SWPPP. This certification is hereby signed in reference to the above named project: Company: Address: Telephone Number: Type of construction service to be provided: Signature: Title: Date: Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix H – Grading and Stabilization Activities Log Date Grading Activity Initiated Description of Grading Activity Description of Stabilization Measure and Location Date Grading Activity Ceased (Indicate Temporary or Permanent) Date When Stabilization Measures Initiated INSERT DATE INSERT DATE ☐ Temporary ☐ Permanent INSERT DATE INSERT DATE INSERT DATE ☐ Temporary ☐ Permanent INSERT DATE INSERT DATE INSERT DATE ☐ Temporary ☐ Permanent INSERT DATE INSERT DATE INSERT DATE ☐ Temporary ☐ Permanent INSERT DATE INSERT DATE INSERT DATE ☐ Temporary ☐ Permanent INSERT DATE INSERT DATE INSERT DATE ☐ Temporary ☐ Permanent INSERT DATE INSERT DATE INSERT DATE ☐ Temporary ☐ Permanent INSERT DATE INSERT DATE INSERT DATE ☐ Temporary ☐ Permanent INSERT DATE Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix I – Training Documentation Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix J – Delegation of Authority Form Delegation of Authority I, _______________________ (name), hereby designate the person or specifically described position below to be a duly authorized representative for the purpose of overseeing compliance with environmental requirements, including the EPA’s Construction General Permit (CGP), at the ____________________________________ construction site. The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit. ________________________________________ (name of person or position) ________________________________________ (company) ________________________________________ (address) ________________________________________ (city, State, zip) ________________________________________ (phone) By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in Appendix G of EPA’s CGP, and that the designee above meets the definition of a “duly authorized representative” as set forth in Appendix G. I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Name: Company: Title: Signature: Date: Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix K – Endangered Species Documentation United States Department of the Interior FISH AND WILDLIFE SERVICE New England Field Office 70 Commercial Street, Suite 300 Concord, NH 03301-5087 https://www.fws.gov/office/new-england-ecological-services August 14, 2024 McKenna Roberts Kleinfelder One Beacon St., Suite 8100 Boston, MA 02108 RE: Straightway and Hyannisport PFAS Treatment Facility, Barnstable, MA (In reply refer to Project Code 2024-0078878) Dear McKenna Roberts: This responds to your request, dated August 13, 2024, and received in our office on the same date, for our concurrence with your determination that the Town of Barnstable’s proposed installation of the Straightway and Hyannisport PFAS Treatment Facility in Barnstable, MA, funded through the U.S. Environmental Protection Agency’s (EPA) Drinking Water State Revolving Fund (Project), may affect, but is not likely to adversely affect, the federally endangered northern long-eared bat (Myotis septentrionalis) and proposed endangered tricolored bat (Perimyotis subflavus). Your request and our response are made pursuant to section 7 of the Endangered Species Act of 1973, as amended (87 Stat. 884, as amended; 16 U.S.C 1531, et seq.) (ESA). We understand the Town of Barnstable is acting as a non-Federal representative of the EPA for the purpose of consultation under section 7. Based on our knowledge, expertise, and review of the information and analysis included with your consultation request, we concur with your determination because any effects from the proposed action on the subject species would be insignificant and/or discountable. The Town of Barnstable has made a no effect determination for the federally endangered American chaffseed (Schwalbea americana) and endangered sandplain gerardia (Agalinis acuta). Further consultation under section 7 of the ESA is not required at this time. If any of the criteria at 50 CFR 402.16(a) are met, reinitiation of consultation is required, and the Town of Barnstable or the EPA should contact us immediately and suspend activities that may affect those species until the appropriate level of consultation is completed with our office. Thank you for your McKenna Roberts 2 8/14/2024 cooperation, and please contact Eliese Dykstra of this office at 603-568-4652 or Eliese_Dykstra@fws.gov if you have questions or need further assistance. Sincerely yours, Audrey Mayer Supervisor New England Field Office cc: mroberts@kleinfelder.com kryan@kleinfelder.com bmong@kleinfelder.com Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix L – Historic Properties Documentation 950 CMR: OFFICE OF THE SECRETARY OF THE COMMONWEALTH APPENDIX A MASSACHUSETTS HISTORICAL COMMISSION 220 MORRISSEY BOULEVARD BOSTON, MASS. 02125 617-727-8470, FAX: 617-727-5128 PROJECT NOTIFICATION FORM Project Name: ________________________________________________________________________________ Location / Address: ___________________________________________________________________________ City / Town: ________________________________________________________________________________ Project Proponent Name: ______________________________________________________________________________________ Address: ____________________________________________________________________________________ City/Town/Zip/Telephone: _____________________________________________________________________ Agency license or funding for the project (list all licenses, permits, approvals, grants or other entitlements being sought from state and federal agencies). Agency Name Type of License or funding (specify) Project Description (narrative): Does the project include demolition? If so, specify nature of demolition and describe the building(s) which are proposed for demolition. Does the project include rehabilitation of any existing buildings? If so, specify nature of rehabilitation and describe the building(s) which are proposed for rehabilitation. Does the project include new construction? If so, describe (attach plans and elevations if necessary). 5/31/96 (Effective 7/1/93) - corrected 950 CMR - 275 Straightway & Hyannisport Water Treatment Facility Improvements Barnstable 228 Straightway / 132 Smith Street, Barnstable MA Town of Barnstable, Department of Public Works 382 Falmouth Road Hyannis, MA 02601, Town of Barnstable, Project Manager Matt Wrobel, 508-790-6400 See Attachment 1. See Attachment 2 for narrative and photographs of existing conditions. Yes, this project includes demolition of the existing Hyannisport and Simmons Pond well buildings located at 132 Smith Street in order to relocate the wells at higher elevations out of the floodplain. These are both masonry buildings constructed after 1975. There will be minor modifications to the existing building at 228 Straightway, in order to make the water works compatible with proposed new treatment facility construction. Modifications will include exterior and interior piping. 228 Straightway is a 1998 masonry building. Yes, this project includes the new construction of a water treatment plant to provide enhanced water quality treatment and improved resiliency for the Town of Barnstable Hyannis Water System. See Attachment 3, Conceptual Design Plans. See Attachment 1. 950 CMR: OFFICE OF THE SECRETARY OF THE COMMONWEALTH APPENDIX A (continued) To the best of your knowledge, are any historic or archaeological properties known to exist within the project’s area of potential impact? If so, specify. What is the total acreage of the project area? Woodland ______________acres Productive Resources: Wetland________________acres Agriculture _________________acres Floodplain______________acres Forestry ___________________acres Open space______________acres Mining/Extraction ___________acres Developed ______________acres Total Project Acreage_________acres What is the acreage of the proposed new construction? _________________acres What is the present land use of the project area? Please attach a copy of the section of the USGS quadrangle map which clearly marks the project location. This Project Notification Form has been submitted to the MHC in compliance with 950 CMR 71.00. Signature of Person submitting this form: _________________________________Date: ____________________ Name: ______________________________________________________________________________________ Address: ____________________________________________________________________________________ City/Town/Zip: ______________________________________________________________________________ Telephone: __________________________________________________________________________________ REGULATORY AUTHORITY 950 CMR 71.00: M.G.L. c. 9, §§ 26-27C as amended by St. 1988, c. 254. 7/1/93 950 CMR - 276 inventoried, MHC # BRN.AS Hyannis Port Area. The existing Simmons Pond and Hyannisport pump stations, which will be demolished, are within this area. However, the pump stations were constructed after 1975 and are not expected to have historical significance. (See Attachment 2). See Attachment 5 for USGS Quadrangle map of project location. Limits of disturbance for the work are included in the Attachment 3, Conceptual Design Plans. n/a At present the project area is used as a drinking water treatment facility campus. The majority of the area is developed open space. The southern portion of the project site borders a wetland. Both the northern and southern portions of the project site include wooded areas. Approximately 0.5 acres of woodlands will be cleared as a result of the project. Kirsten Ryan, Project Manager Kleinfelder, 1 Beacon Street, Suite 8100 Boston, MA 02108 617-498-4778 See also, Attachment 3, Conceptual Design Plans 3.90 1.4 0.11 * Note- calculated from 2016 Land Use. Floodplain acreage is 1% annual chance (100-yr) floodzone. 0.00* 0.29 2.10 Yes. MACRIS was reviewed and 132 Smith St is part of an 0.32 June 6, 2024 Massachusetts Historical Commission Project Notification Form 3 Barnstable - Straightway Project Attachment 1 Attachment 1 List of Agency Licenses and Funding for the Project Attachment 1. List of Agency Licenses and Funding for the Project Barnstable Straightway - Hyannisport WTP Project Environmental Permitting Matrix Regulation or Permit Agency Filing or Application State Permits Massachusetts Environmental Policy Act (MEPA) (301 CMR 11.00) Executive Office of Energy and Environmental Affair's MEPA Office Expanded Environmental Notification Form (EENF), Environmental Impact Report (EIR) Massachusetts Wetlands Protection Act (WPA) (310 CMR 10.00) Barnstable Conservation Commission Notice of Intent (NOI) for issuance of Order of Conditions (OOC) Massachusetts State Register of Historic Places Review (950 CMR 71.00) Massachusetts Historical Commission (MHC) Project Notification Form (PNF) Water Supply Permits - Approval to Construct a Source >70GPM MassDEP BRP WS20 Approval of Treatment Facility Modification MassDEP BRP WS25 Federal Permits Endangered Species Act (ESA) Review US Fish and Wildlife Service (USFWS) IPaC Official Species List and programmatic key(s) Coastal Zone Management (CZM) Act MA CZM Office Application for Certificate Federal Flood Risk Management Standard (FFRMS) EPA/MassDEP Application for approval US EPA NPDES Construction General Permit (CGP) US EPA Notice of Intent (NOI) and Stormwater Pollution Prevention Plan (SWPPP) US EPA NPDES Dewatering and Remediation General Permit (DRGP) US EPA NOI and SWPPP Local Permits Town of Barnstable Wetlands Ordinances Barnstable Conservation Commission NOI local requirements (same submittal as state WPA) Site Plan Review Building Dept. Submit application and drawings online Funding Drinking Water State Revolving Fund 2024 IUP MassDEP Project Financial Assistance Applicatiom Massachusetts Historical Commission Project Notification Form 4 Barnstable - Straightway Project Attachment 1 Massachusetts Historical Commission Project Notification Form 5 Barnstable - Straightway Project Attachment 2 Attachment 2 Project Narrative Attachment 2. Project Narrative and Schedule The proposed project to expand and improve the Straightway and Hyannisport Water Treatment Facilities is critical to public health and water system resiliency. It will receive Drinking Water State Revolving Fund (DWSRF) funding as part of the 2024 Final SRF Intended Use Plan to address per- and poly-fluoroalkyl substances (PFAS) contamination. The Town of Barnstable’s Hyannis Water System (HWS) operates three water treatment campuses with a total of 12 wells and serves a year-round population of approximately 18,000 which surges to about 35,000 in the summer. All of the HWS wells have been impacted by PFAS contamination. When the EPA’s Health Advisory was lowered to 70 ppt in 2016, the Town voluntarily moved quickly to implement seasonal treatment using unwinterized granular activated carbon (GAC) units at each location, at a cost of tens of millions of unanticipated capital dollars. The Straightway and Hyannisport Treatment Facilities are a critical campus, representing 30% of HWS’s total potential supply. The property’s four wells: Straightway 1 (STWY-1), Straightway 2 (STWY-2), Hyannisport (HP), and Simmons Pond (SP) have the potential to supply up to 4 million gallons per day (MGD) of water. However, the campus is currently only providing about 1.15 MGD. This project consists of improvements required to increase supply, pumping and treatment capacity, improve resiliency to sea level rise, and meet current and future drinking water regulations. The Hyannisport Treatment Facility consists of the Simmons Pond and Hyannisport Pump Stations, at 132 Smith Street. Each of the pump stations treats the raw water from their respective wells for iron and manganese sequestration. Water from the Simmons Pond Well is then pumped to the Hyannisport Pump station for treatment to adjust pH and provide corrosion control. The treated water is then pumped north to the Straightway Treatment plant at 228 Straightway, where it is combined with water from Straightway Wells 1 & 2. The Straightway Treatment Facility houses Straightway Wells 1 & 2. It also houses chemical feed systems to treat raw water for iron and manganese sequestration, pH adjustment, and corrosion control. Water exiting the Straightway Treatment Facility combines with water from the Hyannisport Treatment Facility and then flows through GAC filtration for PFAS removal and is dosed with sodium hypochlorite. It then flows into a 400,000 gallon storage tank to achieve 4-log disinfection. A booster pump station downstream of the tank pumps water from the tank into the distribution system. Existing PFAS treatment at the Straightway site was installed quickly to meet summer demand and as such is non-optimized (without prefiltration for removal of elevated iron and manganese), and, non-winterized (the GAC units are on a slab with no shelter or climate-control and must be drained each fall). HWS requires treatment improvements to the Straightway and Hyannisport facilities to be able to: 1) reliably and continually meet existing and anticipated future water quality regulations, 2) to optimize the performance and efficiency water treatment, and 3) to allow for maximum flexibility and reliability to protect against disruption to its system at any single location. The proposed project consists of the following elements required to achieve these goals: 1. Winterize the existing GAC PFAS treatment units at 228 Straightway to keep them operational year- round for increased system resiliency. (See Photo 2) This portion of the project consists of constructing a pre-engineered metal building around the existing units. It requires no demolition. 2. At 132 Smith Street, install replacement wells and pump stations for the Hyannisport Well and the Simmons Pond Well to restore lost yield due to formation plugging and to relocate these functions at elevations above the 500-year floodplain. The Hyannisport Pump Station and Simmons Pond Pump station will be demolished after the new ones are operational. (See Photos 3 and 4.) Piping between the existing pump stations will be abandoned. New piping will be installed to connect the proposed pump stations to the existing main. 3. Construct a new Straightway Water Treatment Facility at the existing facility at 228 Straightway to provide enhanced treatment and expanded treatment capacity. The facility will consist of a single pre-engineered metal building which will house GAC filters for PFAS filtration, green sand filters for iron and manganese removal, and UVAOP equipment for 1-4 Dioxane removal. Massachusetts Historical Commission Project Notification Form 6 Barnstable - Straightway Project Attachment 2 Anticipated Project Schedule Project Phase Start Date End Date Design Contract Executed/Notice to Proceed January 2024 -- Survey, Geotech, Conceptual Design; Preliminary Design January 2024 June 2024 60% Design & Permitting June 2024 October 2024 90% - 100% Design November 2024 March 2025 Bidding; Contract Award April 2025 June 2025 Construction July 2025 July 2027 The existing facilities to be modified or demolished were constructed after 1975. Photographs are provided below in Attachment 2A. The property at 132 Smith Street is part of MHC inventoried area, BRN.AS. One MHC Inventoried Property, the John Hopper Smith House (BRN.549), is located about 700 feet southeast of the project site at 56 Smith Street, as shown below in Attachment 2B. The property is a single-family dwelling built in 1820. This project will not effect the 132 Smith Street property. To see the limits of disturbance for this project refer to Attachment 3, Conceptual Design Plans. Massachusetts Historical Commission Project Notification Form 7 Barnstable - Straightway Project Attachment 2 Attachment 2A: Photographs of Existing Site Facilities Photo 2: 228 Straightway campus view to the southwest. Proposed facility to be constructed to the south of the Tank. Photo 1: Existing Straightway Water Treatment Facility (ca 1998) – minor piping modifications proposed. CHLORINE INJECTION BUILDING BOOSTER PUMP STATION GAC FILTERS STORAGE TANK FOR DISNINFECTION Massachusetts Historical Commission Project Notification Form 8 Barnstable - Straightway Project Attachment 2 Photo 4: Existing Simmons Pond Pump Station (circa 1975) to be demolished after new station online. Photo 3: Existing Hyannisport Pump Station (circa 1995 construction) to be demolished after new facilities are placed online. Massachusetts Historical Commission Project Notification Form 9 Barnstable - Straightway Project Attachment 2 Attachment 2B: MACRIS Massachusetts Historical Commission Inventory near Project Site Massachusetts Historical Commission Project Notification Form 10 Barnstable - Straightway Project Attachment 2 . Massachusetts Historical Commission Project Notification Form . 11 . Barnstable - Straightway Project Attachment 3 Attachment 3 Conceptual Design Plans . Massachusetts Historical Commission Project Notification Form 11 Barnstable - Straightway Project Attachment 4 Massachusetts Historical Commission Project Notification Form 11 Barnstable - Straightway Project Attachment 4 Massachusetts Historical Commission Project Notification Form 11 Barnstable - Straightway Project Attachment 3 Massachusetts Historical Commission Project Notification Form 11 Barnstable - Straightway Project Attachment 3 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT 400'WELLHEAD PROTECTION LIMIT PROP. WINTERIZED GAC BUILDING 250' REPLACEMENT WELL RADIUS PROP. STRAIGHTWAY WATER TREATMENT FACILITY EXIST. RAW WATER MAIN FROM HYANNISPORT AND SIMMONS POND WELLS BENS POND SIMMONS POND SP-01 SP-03A HP-02A PROP. SIMMONS POND PUMP STATION BUILDING PROP. HYANNISPORT PUMP STATION BUILDING STRAIGHTWAY SITE PLAN HYANNISPORT AND SIMMONS POND SITE PLAN CAD FILE: G:\_clients\Barnstable MA\24003062.001A - W-Barnstable MA - Straightway Design\04 - Design Phase\06 - CAD\Production Drawings\C-KEY PLAN.dwg LAYOUT: C-KEY PLANPLOTTED: 5/21/2024 11:23 AM BY: matthew stevens9 05/21/2024 MD/MPS TB/GAA 24003062.001A STRAIGHTWAY WATER TREATMENT FACILITY HYANNIS WATER SYSTEM BARNSTABLE DPW - WATER DIVISION 47 OLD YARMOUTH ROAD HYANNIS, MA 02601 REV DESCRIPTION DSN CHK DATE DWN APP One Beacon Street, Suite 8100 Boston, MA 02108 Phone: 617-497-7800 www.kleinfelder.com 30% PRELIMINARY DESIGN SHEET of DESIGNED BY ISSUE DATE CURRENT REVISION DRAWN BY CHECKED BY PROJECT NO. REVISIONS 1"0 SCALE VERIFICATION THIS BAR IS 1 INCH IN LENGTH ON ORIGINAL DRAWING IF IT'S NOT 1 INCH ON THIS SHEET ADJUST YOUR SCALES ACCORDINGLY APPROVED BY ORIGINAL DRAWING SIZE IS 22 x 34 GAA ######## SCALE: 1" = 150' KEY PLAN C-001 1 KEY PLAN SCALE IN FEET 0 150 300 450 SCALE: 1" = 150' NOT FOR CONSTRUCTION GENERAL NOTES: 1.WETLAND FLAGS SHOWN WERE DELINEATED BY LUCAS ENVIRONMENTAL ON NOVEMBER 29, 2023. 2.EXISTING CONDITIONS SURVEY SHOWN WAS CONDUCTED BY CHESS ENGINEERING, DATED APRIL 6,2024 DI GMHY DW EXISTING LEGEND CHAIN LINK FENCECLF DI DUCTILE IRON MINOR CONTOUR129 MAJOR CONTOUR130 SPOT ELEVATION129.9 RECORD WATER LINE HYDRANT WATER GATE WATER WELL STANDPIPE ELECTRIC LINE UTILITY POLE TRANSFORMER GUY WIRE RECORD GAS LINES GAS METER WETLAND LIMIT WETLAND FLAG 100' WETLAND BUFFER100' WB OVERHEAD WIRES CHAINLINK FENCE SOIL PROBE TREELINE CONCRETE PADCP EOP EDGE OF PAVEMENT SP SP ABANDONED/REMOVED WATER LINE E ELECTRIC MANHOLE PROPOSED LEGEND SEWER LINE DRAIN LINE DRAIN LINE DRAIN MANHOLE SEWER LINE SEWER MANHOLE D S WATER LINE PROPOSED WATER GATE VEHICULAR ACCESS GATE EXTENT OF STORMWATER FEATURE PROPOSED BUILDING PROPOSED TREELINE CHAIN LINK FENCE WETLAND EDGE EDGE OF PAVEMENT LINE 100-YR FLOOD ZONE EXTENT OF CRUSHED STONE ACCESS DRIVE 50' WETLAND BUFFER50' WB EXTENT OF ASPHALT/STRUCTURE REMOVAL Massachusetts Historical Commission, Project Notification Form 11 Barnstable - Straightway Project, Attachment 3 WATER STORAGE TANKGRAV E L STRAIGHTWAY FACILITY BUILDING PUMP STATIONUP# 20" DEC 22" DEC 12" DEC 6" DEC 10" DEC 8" EVR10" EVR12" EVR 14" EVR 22" EVR UP# 8" DI WATER MAIN LOCATION APPROXIMATE SEE NOTE XX TBM TOP OF CONCRETE BASE ELEV. = 31.77' TBM- WESTERLY HYDRANT FLANGE BOLT ELEV. = 24.36' EXISTING 12" DI WATER MAIN EXISTING 8" DI 12" DI WATER MAIN 3 1 3 0 29282726242322212019181717163231302928293031 30 29 28 27 26 25 242322 21 20 24 23 17181 9 20 21 22 23 20 19 18 17 1819 20 212224 2523 31 2 93028 272 6 3332 3131 32 2 0 21 TBM TOP OF CONCRETE PAD ELEV. = 32.49' 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT CAD FILE: G:\_clients\Barnstable MA\24003062.001A - W-Barnstable MA - Straightway Design\04 - Design Phase\06 - CAD\Production Drawings\C-SITE PLAN-STWY-ALTS.dwg LAYOUT: EXISTING CONDITONSPLOTTED: 5/21/2024 11:23 AM BY: matthew stevens9 05/21/2024 MD/MPS TB/GAA 24003062.001A STRAIGHTWAY WATER TREATMENT FACILITY HYANNIS WATER SYSTEM BARNSTABLE DPW - WATER DIVISION 47 OLD YARMOUTH ROAD HYANNIS, MA 02601 REV DESCRIPTION DSN CHK DATE DWN APP One Beacon Street, Suite 8100 Boston, MA 02108 Phone: 617-497-7800 www.kleinfelder.com 30% PRELIMINARY DESIGN SHEET of DESIGNED BY ISSUE DATE CURRENT REVISION DRAWN BY CHECKED BY PROJECT NO. REVISIONS 1"0 SCALE VERIFICATION THIS BAR IS 1 INCH IN LENGTH ON ORIGINAL DRAWING IF IT'S NOT 1 INCH ON THIS SHEET ADJUST YOUR SCALES ACCORDINGLY APPROVED BY ORIGINAL DRAWING SIZE IS 22 x 34 GAA C-002 2 STRAIGHTWAY SITE PLAN - EXISTING CONDITIONS NOT FOR CONSTRUCTIONSCALE: 1" = 30' STRAIGHTWAY SITE PLAN - EXISTING CONDITIONS SCALE IN FEET 0 30 60 90 SCALE: 1" = 30' Massachusetts Historical Commission, Project Notification Form 12 Barnstable - Straightway Project, Attachment 3 WATER STORAGE TANKGRAV E L STRAIGHTWAY FACILITY BUILDING PUMP STATIONUP# 20" DEC 22" DEC 12" DEC 6" DEC 10" DEC 8" EVR10" EVR12" EVR 14" EVR 22" EVR UP# 8" DI WATER MAIN LOCATION APPROXIMATE SEE NOTE XX TBM TOP OF CONCRETE BASE ELEV. = 31.77' TBM- WESTERLY HYDRANT FLANGE BOLT ELEV. = 24.36' EXISTING 12" DI WATER MAIN EXISTING 8" DI 12" DI WATER MAIN 3 1 3 0 29282726242322212019181717163231302928293031 30 29 28 27 26 25 242322 21 20 24 23 17181 9 20 21 22 23 20 19 18 17 1819 20 212224 2523 31 2 93028 272 6 3332 3131 32 2 0 21 TBM TOP OF CONCRETE PAD ELEV. = 32.49' 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT BENS POND PROP. WINTERIZED GAC BUILDING PROP. 16" WATER MAIN EXIST. 10" AC WATER MAIN TO BE REMOVED AND DISPOSED 250' REPLACEMENT WELL RADIUS CHEMICAL INJECTION BUILDING TO BE DEMOLISHED PROP. PAVEMENT PROP. TIGHT TANK PROP. STRAIGHTWAY WATER TREATMENT FACILITY PROP. STORMWATER MANAGEMENT AREA PROP. STORMWATER MANAGEMENT AREA PROP. STORMWATER MANAGEMENT AREA PARKING POST-GAC WATER PRE-GAC WATER FINISHED WATER TO CONTACT TANK BACKWASH SUPPLY COMBINED RAW WATER SUPPLY BACKWASH WASTE PROP. ACCESS GATE CUT AND CAP EXISTING 8" PIPE COMBINED FINISH WATER OUTFLOW COMBINED RAW WATER FROM HYANNIS POND, SIMMONS POND, AND STRAIGHTWAY WELLS ARBORVITAE VEGETATIVE SCREENING CUT AND CAP EXISTING 8" PIPE POTABLE WATER SUPPLY FIRE SERVICE LINE COMBINED FINISHED WATER SUPPLY CAD FILE: G:\_clients\Barnstable MA\24003062.001A - W-Barnstable MA - Straightway Design\04 - Design Phase\06 - CAD\Production Drawings\C-SITE PLAN-STWY-ALTS.dwg LAYOUT: C-SITE-ALT1PLOTTED: 5/21/2024 11:23 AM BY: matthew stevens9 05/21/2024 MD/MPS TB/GAA 24003062.001A STRAIGHTWAY WATER TREATMENT FACILITY HYANNIS WATER SYSTEM BARNSTABLE DPW - WATER DIVISION 47 OLD YARMOUTH ROAD HYANNIS, MA 02601 REV DESCRIPTION DSN CHK DATE DWN APP One Beacon Street, Suite 8100 Boston, MA 02108 Phone: 617-497-7800 www.kleinfelder.com 30% PRELIMINARY DESIGN SHEET of DESIGNED BY ISSUE DATE CURRENT REVISION DRAWN BY CHECKED BY PROJECT NO. REVISIONS 1"0 SCALE VERIFICATION THIS BAR IS 1 INCH IN LENGTH ON ORIGINAL DRAWING IF IT'S NOT 1 INCH ON THIS SHEET ADJUST YOUR SCALES ACCORDINGLY APPROVED BY ORIGINAL DRAWING SIZE IS 22 x 34 GAA C-003 3 STRAIGHTWAY SITE PLAN NOT FOR CONSTRUCTIONSCALE: 1" = 30' STRAIGHTWAY SITE PLAN SCALE IN FEET 0 30 60 90 SCALE: 1" = 30' Massachusetts Historical Commission, Project Notification Form 13 Barnstable - Straightway Project, Attachment 3 BITUMINOUS PAVEMENT BITUM I N O U S PAVEM E N T 27.0'39.3'CHAIN LINK FENCE (TYP)EXTERNAL GENERATOR SIMMONS POND (LOCATION MASS GIS) HALLS B R O O K SIMMO N S P O N D STATIO N COBBLESTONE STRIP TREELINE (TYP.)8" DI WATER MAIN LOCATION APPROXIMATE FROM RECORD PLANS 8" CI HYANNISPORT STATION UP#0.85OFFCENTERPOLEUP#0.66OFCENTER891011121314151718 14 1312111 0 101098 1112131415141316182020 191817 1615 14 14 141 3 1 2 1 1 1 0 98 77 891011 11 111 0 91011 12131413121111 1" WATER SAMPLE PIPE TBM - SOUTH-EASTERLYHYDRANT FLANGE BOLT ELEV. = 17.77' PLANTER AREA W/STONE WALL PERIMETER FLOW 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT TBM - SOUTH-EASTERLY HYDRANT FLANGE BOLT ELEV. = 13.61'FEMA FLOOD ZONE X BOUNDARYFEMA FLOOD ZONE XBOUNDARYCAD FILE: G:\_clients\Barnstable MA\24003062.001A - W-Barnstable MA - Straightway Design\04 - Design Phase\06 - CAD\Production Drawings\C-SITE PLAN-HP-SP.dwg LAYOUT: EXISTING CONDITIONSPLOTTED: 5/21/2024 11:24 AM BY: matthew stevens9 05/21/2024 MD/MPS TB/GAA 24003062.001A STRAIGHTWAY WATER TREATMENT FACILITY HYANNIS WATER SYSTEM BARNSTABLE DPW - WATER DIVISION 47 OLD YARMOUTH ROAD HYANNIS, MA 02601 REV DESCRIPTION DSN CHK DATE DWN APP One Beacon Street, Suite 8100 Boston, MA 02108 Phone: 617-497-7800 www.kleinfelder.com 30% PRELIMINARY DESIGN SHEET of DESIGNED BY ISSUE DATE CURRENT REVISION DRAWN BY CHECKED BY PROJECT NO. REVISIONS 1"0 SCALE VERIFICATION THIS BAR IS 1 INCH IN LENGTH ON ORIGINAL DRAWING IF IT'S NOT 1 INCH ON THIS SHEET ADJUST YOUR SCALES ACCORDINGLY APPROVED BY ORIGINAL DRAWING SIZE IS 22 x 34 GAA SCALE: 1" = 40' HYANNISPORT AND SIMMONS POND EXISTING CONDITIONS C-004 4 HYANNISPORT AND SIMMONS POND SITE PLAN SCALE IN FEET 0 40 80 120 SCALE: 1" = 40' NOT FOR CONSTRUCTION Massachusetts Historical Commission, Project Notification Form 14 Barnstable - Straightway Project, Attachment 3 BITUMINOUS PAVEMENT BITUM I N O U S PAVEM E N T 27.0'39.3'CHAIN LINK FENCE (TYP)EXTERNAL GENERATOR SIMMONS POND (LOCATION MASS GIS) HALLS B R O O K SIMMO N S P O N D STATIO N COBBLESTONE STRIP TREELINE (TYP.)8" DI WATER MAIN LOCATION APPROXIMATE FROM RECORD PLANS 8" CI HYANNISPORT STATION UP#0.85OFFCENTERPOLEUP#0.66OFCENTER891011121314151718 14 1312111 0 101098 1112131415141316182020 191817 1615 14 14 141 3 1 2 1 1 1 0 98 77 891011 11 111 0 91011 12131413121111 1" WATER SAMPLE PIPE TBM - SOUTH-EASTERLYHYDRANT FLANGE BOLT ELEV. = 17.77' PLANTER AREA W/STONE WALL PERIMETER FLOW 400' WELLHEAD PROTECTION LIMIT 400' WELLHEAD PROTECTION LIMIT TBM - SOUTH-EASTERLY HYDRANT FLANGE BOLT ELEV. = 13.61'FEMA FLOOD ZONE X BOUNDARYFEMA FLOOD ZONE XBOUNDARYHP-02A SP-03A SP-01 PROP. HYANNISPORT PUMP STATION BUILDING PROP. SIMMONS POND PUMP STATION BUILDING PROP. SECURITY FENCE PROP. SECURITY FENCE EXIST. SIMMONS POND PUMP STATION TO BE DEMOLISHED PROP. ACCESS GATE PROP. ACCESS GATE REMOVE AND DISPOSE EXISTING PAVEMENT TIGHT TANK PAVED PARKING SPACE CRUSHED STONE PARKING SPACE AND ACCESS DRIVE EXIST. HYANNIS POND PUMP STATION TO BE DEMOLISHED CAD FILE: G:\_clients\Barnstable MA\24003062.001A - W-Barnstable MA - Straightway Design\04 - Design Phase\06 - CAD\Production Drawings\C-SITE PLAN-HP-SP.dwg LAYOUT: C-SITE HP-SPPLOTTED: 5/21/2024 11:24 AM BY: matthew stevens9 05/21/2024 MD/MPS TB/GAA 24003062.001A STRAIGHTWAY WATER TREATMENT FACILITY HYANNIS WATER SYSTEM BARNSTABLE DPW - WATER DIVISION 47 OLD YARMOUTH ROAD HYANNIS, MA 02601 REV DESCRIPTION DSN CHK DATE DWN APP One Beacon Street, Suite 8100 Boston, MA 02108 Phone: 617-497-7800 www.kleinfelder.com 30% PRELIMINARY DESIGN SHEET of DESIGNED BY ISSUE DATE CURRENT REVISION DRAWN BY CHECKED BY PROJECT NO. REVISIONS 1"0 SCALE VERIFICATION THIS BAR IS 1 INCH IN LENGTH ON ORIGINAL DRAWING IF IT'S NOT 1 INCH ON THIS SHEET ADJUST YOUR SCALES ACCORDINGLY APPROVED BY ORIGINAL DRAWING SIZE IS 22 x 34 GAA SCALE: 1" = 40' HYANNISPORT AND SIMMONS POND SITE PLAN C-005 5 HYANNISPORT AND SIMMONS POND SITE PLAN SCALE IN FEET 0 40 80 120 SCALE: 1" = 40' NOT FOR CONSTRUCTION Massachusetts Historical Commission, Project Notification Form 15 Barnstable - Straightway Project, Attachment 3 . Massachusetts Historical Commission Project Notification Form . 17 . Barnstable - Straightway Project Attachment 4 Attachment 4 USGS Quadrangle Massachusetts Historical Commission Project Notification Form 17 Barnstable - Straightway Project Attachment 4 ―│ ―│ ―│ ―│ ―│ ―│ ―│―│ ―│―│ ―│―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│―│―│―│―│―│ ―│ ―│―│―│―│―│ ―│―│ ―│ ―│ ―│―│ ―│ ―│―│ ―│―│ ―│ ―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│―│ ―│―│―│ ―│―│―│ ―│―│ ―│―│ ―│―│ ―│ ―│ ―│ ―│ ―│―│ ―│―│ ―│ ―│ ―│―│―│―│―│―│―│―│ ―│―│ ―│―│ ―│―│ ―│ ―│ ―│―│ ―│―│ ―│ ―│ ―│―│―│―│―│ ―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│―│ ―│―│―│ ―│―│ ―│―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│―│ ―│―│ ―│ ―│ ―│―│ ―│―│ ―│ ―│ ―│―│―│ ―│ ―│ ―│ ―│―│―│―│―│―│ ―│ ―│ ―│ ―│ ―│ ―│―│ ―│―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│ ―│―│ ―│―│ ―│―│ ―│ ―│ ―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│ ―│―│ ―│―│ ―│ ―│ ―│―│―│―│ ―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ 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5 5 3 MASSACHUSETTS 4 1 65 3 2 QUADRANGLE LOCATION HYANNIS QUADRANGLEMASSACHUSETTS - BARNSTABLE COUNTY7.5-MINUTE SERIES U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY × Ø GN MN 0°52´15 MILS 14°20´255 MILS UTM GRID AND 2023 MAGNETIC NORTHDECLINATION AT CENTER OF SHEET CG Grid Zone Designation19T U.S. National Grid100,000 - m Square ID 1 Sandwich OE N 2 Dennis OE N3 Sandwich4 Dennis5 Cotuit6 Hyannis OE S ADJOINING QUADRANGLES Imagery.....................................................NAIP, August 2018 - August 2018Roads......................................... U.S. Census Bureau, 2018Names............................................................................GNIS, 1974 - 2023Hydrography...............................National Hydrography Dataset, 2005 - 2022Contours............................................National Elevation Dataset, 2019Boundaries..............Multiple sources; see metadata file 2021 - 2022 Wetlands.................FWS National Wetlands Inventory 2008 - 2011 North American Datum of 1983 (NAD83)World Geodetic System of 1984 (WGS84). Projection and1 000-meter grid:Universal Transverse Mercator, Zone 19T Produced by the United States Geological Survey This map is not a legal document. Boundaries may begeneralized for this map scale. Private lands within governmentreservations may not be shown. Obtain permission beforeentering private lands. This map was produced to conform with the National Geospatial Program US Topo Product Standard. CONTOUR INTERVAL 10 FEETNORTH AMERICAN VERTICAL DATUM OF 1988 SCALE 1:24 000 1000 500 0 METERS 1000 2000 21KILOMETERS00.51 1 0.5 0 MILES 1 1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 FEET HYANNIS, MA 2023 Expressway Local Connector ROAD CLASSIFICATION Ramp 4WD Secondary Hwy Local Road Interstate Route State RouteUS RouteWX./ . Massachusetts Historical Commission Project Notification Form . 14 . Barnstable - Straightway Project Attachment 4 PROJECT AREA . Massachusetts Historical Commission Project Notification Form . 18 . Barnstable - Straightway Project Attachment 4 Massachusetts Historical Commission Project Notification Form 18 Barnstable - Straightway Project Attachment 4 Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix M – Rainfall Gauge Recording Use the table below to record the rainfall gauge readings at the beginning and end of each work day. An example table follows. Month/Year Month/Year Month/Year Day Start time End time Day Start time End time Day Start time End time 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 10 10 10 11 11 11 12 12 12 13 13 13 14 14 14 15 15 15 16 16 16 17 17 17 18 18 18 19 19 19 20 20 20 21 21 21 22 22 22 23 23 23 24 24 24 25 25 25 26 26 26 27 27 27 28 28 28 29 29 29 30 30 30 31 31 31 Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Example Rainfall Gauge Recording April 2022 May 2022 June 2022 Day 7:00 am 4:400 pm Day 7:00 am 4:00 pm Day 7:00 am 4:00 pm 1 -- -- 1 0.2 0 1 0 0.4 2 -- -- 2 0 0 2 0 0 3 0 0 3 0.1 0.3 3 -- -- 4 0 0.3 4 0 0 4 -- -- 5 0 0 5 0 0 5 0 0 In this example (for only partial months), 0.25-inch rainfall inspections would have been conducted on April 4 and June 1. Stormwater Pollution Prevention Plan (SWPPP) STRAIGHTWAY WATER TREATMENT FACILITY Barnstable, MA Appendix N – Turbidity Monitoring Sampling Documentation