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Home My WebLink AboutStormwater FilingDOWN CAPE ENGINEERING, INC. 939 Main Street Yarmouth Port, MA 02675 508-362-4541 DCE Job # 21-158 Date: March 10, 2022 To: Kelly Grant, Conservation Administrator Town of Yarmouth 1146 Route 28 South Yarmouth, MA 02664 From: Priscilla Leclerc Subject: Joseph Gilmore, 150 South St, South Yarmouth, Stormwater Management Permit Application Enclosed for Joseph Gilmore, 150 South St, South Yarmouth, Stoifnwater Management Permit Application are 9 sets of the :following: Storznwater Management Permit Application Project Narrative Site Plan of 150 South Street, South Yarmouth, MA, prepared for Joseph Gilmore, revised March 2, 2022, 2-page set (I with original stamp & signature and 8 copies) Abutters List Copy of the Notification to Abutters Stormwater Pollution Prevention Plan Stormwater Operations and Maintenance Plan Checklist for Stormwater Report Checks for Filing Fee and legal ad Please feel flee to call if you have any questions. DOWN CAPE ENGINEERING. INC. 939 MAIN ST, SUITE C YARMOUTH PORT, MA 02675 PHONE: 508-3624541 FAX: 508-362-9880 priscilla@dawncape.com DEPARTMENT OF CONSERVATION MI aML,, fif "ffn ;,( M On f I I 1 1'33 1 #c1ttia�L: All filings must be made on Town of Yarmouth forms found at www.yarmouth.ma.us/325/Conservation. No new information may be accepted Into the Commissioners' packets within the week before a meeting. The Conservation Commission shall issue a written notice of administrative completeness or deficiencies to an applicant for an application within ten (10) business days of receiving the application. Refer to the meeting and fee schedule. Contact the Conservation Office if you need assistance. No Has the project been reviewed under Site Plan Review? 9 hardcopies of the following: V Completed signed original application (double sided) +1 List of abutters from the most recent certified record of the Yarmouth Assessor's Office Stormwater Management Site Plan* (folded separately, right side out with title visible) Project Narrative including project description and construction sequence per Section 2.04, and how the project meets the performance standards in Section 2.05 V Erosion and Sediment Control Plan" JV Operation and Maintenance Plan* "(see Storrnwater Management Regulations found at www.yarmouth.ma.us1325lConservation far required information) —b/6— Site Plan Review comments I'd' _ Checklist for Stormwater Report J Proof of delivery of notification to abutters at least 10 days prior to Conservation meeting 1/ I Pdf copy of signed application, supporting information and plan(s) emailed to kqrant(@yarrnouth.ma.us Please list project property's street address in the pdf file name. Filing fee: separate check made payable to "Town of Yarmouth" Legal ad fee: separate check made payable to "Town of Yarmouth" Please list project property's street address on checks. Refer to Fee Schedule at https:/Iwww.yormouth.ma.us/696IFilin.Q-Forms Yaniacuth Conservation Conuirission • 1140 Route 28 • South Yannouth, MA 02564-4492 Tel. (508)-398-2231 Ext. 1289 • Fax (508)-398-0836 • T'I'D# (508) 398-2231 Rev 912021 Page 1 of 1 Important: When Illfing out forms on the computer, use only the tab key to move your cursor - do not use the returnkey. t Town of Yarmouth Stormwater By -Law Ch. 145 Stormwater Management Permit Application A. General Information 1. Project Location: 150 South St — Yarmouth 02664 a. Street Address ^ b. City/T wn G. Zip Coda 41 °39`0.91" N 70*11'56.60"W Latitude and Longitude: _ d. Latitude e. Longitude 34 292.2 _ f. Assessors Map/Plat Number T g. Parcel /Lot Number 2, Applicant: Joseph _ -- — -- Gilmore - a. First Name b. Last Name c. Organization 4 Doresett Dr d. Street Address Fast Walpole — --- -- MA 02032 a. Cityr town I. State g. Zip Code 617-719-0008 JgilmoreOOB@gmail.com h. Phone dumber 1. Email Address 3. Property owner (required if different From applicant): ❑ Check if more than one owner a, First Name b. Last Name c. Organization d. Street Address e. City/Town f. State g. Zip Code h. Phone Number 1. Email address 4. Representative (if any): Daniel a. First Name Down Cape Engineering Inc c. Company 939 Main Street d. Street Address Yarmouthoort e. City/Town 508-362-4541 h. Phone Number 5. Total Pee Paid: # 2.10. 00 a. Total Pee Paid Ojala b. Last Namu MA 02675 f. State — _ g. Zip Code Downcape@downr,ape.com J, Email address Pape S of 2 Town of Yarmouth Stormwater By -Law Ch. 145 �o Stormwater Management Permit Application l R, TA I ,y �'4yrlry A. General Information (continued) 6. General Project Description: Fxlsting site consists of two single family dwellings. Both Existing structures will be demolished and replaced by a single nine bedroom single family dwelling and swimming pool. Site improvements will also include a new septic system, re -developed access driveways, and mitigation plantings along Bass Diver, 7. Properly recorded at the Registry of Deeds for: Barnstable a. County C. Book 225924 b. Certificate # (if registered land) d. Page Number B. Signatures and Submittal Requirements I hereby certify under the penalties of perjury that the foregoing Stormwater Management Permit Application and accompanying plans, documents, and supporting data are true and complete to the best of my knowledge. I understand that the Conservation Commission will place notification of this application in a local newspaper at the expense of the applicant. further certify under penalties of perjury that all abutters were notified of this application, pursuant to the requirements of the Yarmouth Stormwater Management Regulations in writing by hand delivery or certified mall turn receipt requested) to all abutters within 100 feet of the property line of the project location. IgnaturAg icanl y Slg ure of Properly Owner (if different) Signature of Representative (it any) Date / I a 7-0 Z -2— P000 2 or 2 STORMWATER MANAGEMENT PERMIT APPLICATION 150 South Street, South Yarmouth, MA PROJECT OVERVIEW: The applicant is pleased to submit a stormwater application to re -develop an existing residential property bordering on Bass River. As a proposed single family residence on a fairly level property with good infiltration characteristics, the site can comply with the local Stormwater Regulations fairly readily. The 85,850 s.f. property is currently improved with two single family dwellings; these two separate dwellings are to be replaced by one proposed dwelling with an attached garage, pool and patio areas. The total number of bedrooms on the site will remain at nine. A new, upgraded septic system, the leaching area of which is located beyond the Outer Riparian Zone, is proposed to service the new dwelling; no Board of Health variances are required as the septic system meets local and state requirements. The site needs to file as it disturbs over an acre of the fairly level site. The Site is bordered on the East by Bass River, and most of the proposed work will take place within the Inner and Outer Riparian zones of Bass River. Along the river frontage the property is bordered by a bulkhead retaining wall, the top of which is a Coastal Bank. Mean High Water falls on the vertical face of the wall. The entire site lies within Land Subject to Coastal Storm Flowage (AE el. 11 and VE el 13). All work, with the exception of the proposed mitigation, will take place within AE el. 11. The site does not lie within Priority and Estimated Habitats in accordance with the NHESP Map dated August 2021. The proposed home is further from the resource areas than what exists. Most of the work (to include most of the house construction, small amount of driveway, small retaining walls and septic tanks) occurs within the Outer Riparian Zone. Work within the Inner Riparian Zone includes a pool, patio and steps, the main proposed home is not withing the Inner Riparian Zone, and most of this work occurs within current building footprints. The remaining work occurs within previously disturbed and/or actively utilized areas. The new dwelling will be built on a floodzo ne-com pliant foundation, replacing the current non- floodzone compliant dwellings. Fill is required to assist in compliance and to provide reasonable access to the dwelling and pool/patio areas. Drywells are proposed for roof run-off. Mitigation plantings (approximately 7600 s.f.), to consist of New England Wildflower Mix, are proposed adjacent to the bulkhead extending landward a minimum of 40' to as much as 50'. Exposed soils will be loamed and seeded within 30 days of completion of the work and final grading work as weather permits. The site is affected by floodzone VE (El. 13) and AE (El. 11). The proposed dwelling will be located within the AE El. 11 flood zone with the first floor elevated above the design flood elevation of 12. The work includes the construction of a flood resistant foundation, with some fill and regrading around the dwelling. The foundation is designed to flood and then drain per code. Coastal areas are not impacted by relatively small fill amounts due to the large scale of coastal flooding events. Compliance with the Yarmouth Stormwater Bylaw Regulations: To comply with the Yarmouth Stormwater Regulations, a work limit line of staked silt fence backed by coir logs is proposed downgradient of all proposed work and around the sides of the site. All work limit lines shall remain in place until all construction is completed and areas are planted and stable. Preconstruction activities will include the installation of erosion control fences as shown on the site plans, and forming of the swale areas to intercept and infiltrate stormwater from the construction site. The site is a large, very level area, and consists of five to six feet of pervious material above the water table, so onsite infiltration is readily available. (see soil logs on the Site Plan). The dumpster location and areas of infiltration to be utilized during construction are shown on the reduced Erosion and Sedimentation Control Plan ESCP Site Plan attached. See also full size plans for detailed view of existing topography, hydrology, and proposed grading and swale creation. Grass lined swales are utilized to remove the required Phosphorous from the stormwater on the site, as vegetation uptake is the most reliable reduction technique. The driveway and other impervious areas are kept to a minimal width on the large site, and all roof runoff is directed to large drywells around the site for direct infiltration and to reduce flow off the site, the existing two structures do not have roof drywells installed, so the proposed redevelopment will be an improvement over existing conditions. The proposed construction activities will not have a deleterious effect upon any wetland values as listed in the Bylaw. The silt fence will contain all construction activities. Roof drainage will be mitigated utilizing downspouts to drywells or drip lines to stone trenches. The proposed mitigation area will provide an additional buffer to the Coastal Bank and Bass River, and is bowled to contain stormwater from the site in a "rain garden" type area. All machinery will access the areas of proposed construction through the existing driveway. A silt fence will be installed downgradient of any proposed work. The O&M plan lists limitations on fertilizer use per the Stormwater Bylaw, and proposes compliance with the Stormwater Regulations. The Low Impact Design grass swales are utilized to reduce the Phosphorous and Nitrogen loads of the impervious surfaces on the site. No stormwater is expected to leave the site based on the grading and swales indicated on the drawings. Specific drainage calculations have not been run since this is a residential property with the roof runoff being fully infiltrated and grass swales and rain gardens being designated for the relatively modest paved surfaces, but can be provided if needed for further review. As a single family residence, only local regulations and the SWPPP eNOI Construction General Permit are needed for compliance. A template SWPPP filing for the eNOI Construction General Permit is attached for reference. The O&M Plan lists the relatively simple residential requirements for compliance with the regulations. 341 2671 I I CASSELLA ROBERT TR SUSAN B CASSELLA TRUST 815 DONNA DR ORANGE, CT 06477 341 2661 I I STECIUK DAWN D 82 NELSON AVE EXT SARATOGA SPRINGS, NY 12866 341 265.11 FORZIATI MAUREEN K PO BOX 714 CATAUMET , MA 02534 341 292.11 I I GILMORE JOSEPH 4 DORSETT DR EAST WALPOLE , MA 02032 341 2911 I I MCCULLOUGH ROBERT J MCCULLOUGH GINA M 177 RIVER ST, SOUTH YARMOUTH , MA 02664 341 2951 I I CHILDS ROBERT CHILDS ANN F 154 SOUTH ST SOUTH YARMOUTH , MA 02664 341 2931 / DANNER OTTMAR W DANNER CLAUDE M 187 RIVER ST SOUTH YARMOUTH , MA 02664 341 2941 I I AIGUIER DUSTIN T TRS DUSTIN T AIGUIER TRUST PO BOX 194 SOUTH YARMOUTH , MA 02664 341 292.21 / / GILMORE JOSEPH 4 DORESETT DR EAST WALPOLE , MA 02032 Please use this signature to certify this list of properties abutting within 100' of the parcel located at: 181 River St., South Yarmouth, MA 02664 Assessors Map 34, Lot 292.2 Andy Mdchado, Director of Assessing February 1, 2022 NOTIFICATION TO ABUTTERS UNDER THE TOWN OF YARMOUTH STORMWATER BY-LAW, CHANTER 145 In accordance with the second paragraph of the Massachusetts General Laws Chapter 131, Section 40, and Yarmouth By -Law Chapter 145, you are hereby notified of the following: A. The name of the applicant is J d Pfl -I! i-mo y-c-, B. The applicant has filed a Stormwater Management, Permit Application with the Yarmouth Conservation Commission, seeking permission to undertake a construction activity, including clearing, grading, excavation or redevelopment, in an area subject to Protection under Town of Yarmouth Stormwater By -Law, Chapter 145. C. The address of the lot where the activity is proposed is 0 S C '500r I m D. Proposed work is r4.IgriN6_ DINO bWK_uN44 -TO 8r,- LZOPC QErP LQ ITFf ON U�__�, INEF 9VDaXM ►NGii Ai� iq J)W0LLIN4 AND �Wlmt�tW t�O_QL, 41M Ih egQW*, l� f�L�� (f�lCLUbir fi NW G � STt�M ZGC D�VGLOPQ I�XGi DPJ VIAVAY 1 i N Pc r I E. Copies of the Stormwater Management Permit Application may be examined at the Yarmouth Town Hall at the Conservation Commission office between the hours of 9:00 a.m. and 4:00 p.m. Monday thru Friday, For more information, call (508) 398-2231 ext. 1288. F. Copies of the Stormwater Management Permit Application may be obtained from either the applicant or applicant's representative. Applicant's phone number Or Applicant's representative's phone number �0 -. 56 2_- "q! POWNCAeCeMWh6)WC G. Information regarding the date, time and place of the public hearing may be obtained by calling the Yarmouth Conservation Commission office at (508) 398-2231 ext. 1288 H. Person sending this notification (applicant, representative or other): Name _bQWN._ AM EW 1N N NC, Address Town State MA Zip Telephone ? 67— " I NOTES: • Notice of the public hearing, including date, time and place will be published at least five (5) days in advance in a newspaper of general circulation. • Notice of the public hearing, including date, time and place will be posted in the Town Hall not less than 48 hours in advance and online at yarmou.th..ma,us 15 �O uTouTr:-I yAP-M0OT-fli 1s oILMow Stormwater Pollution Prevention Plait (SWPPP) I50 South Street Yarmouth, MA Stonnwater Pollution Prevention Plan For: Gilmore Residence 150 South Street Yarmouth, MA Operatolr(s): rr:j111 Stormwater Manager and SWPPP Contact(s): Joseph Gilmore 4 Doresett Dr East Walpole, MA 02032 Phone: 1 _g 17-719-0008 SWPPP Preparation Date: 3-10-2022 Estimated Project Dares: Start of Construction: 4-1-2022 Completion of Construction: 4-1-2024 150 South Street Yarmouth, MA Stormwater Pollution Prevention Plan (SWPPP) 15o South Street Yarmouth, MA Table of Contents SECTION 1: SITE EVALUATION, ASSESSMENT, AND PLANNING......................................................... I 1 1.1 Project/Site Information..................................................................................................... 1.2 Contact Information/Responsible Parties.........................................................I................2 1.1 Nature and Sequence of Construction Activity................................................................. 4 1.4 Soils, Slopes, Vegetation, and Current Drainage Patterns ............................................... 5 1.5 Construction Site Estimates.............................................................................................. 6 1.6 Receiving Waters............................................................................................................... 6 1.7 Site Features and Sensitive Areas to be Protected.........,.,................................................. 7 1.8 Potential Sources of Pollution............................................................................................ 7 1.8 Potential Sources of Pollution (continued)........................................................................ 8 1.9 Endangered Species Certification...................................................................................... 8 1.10 Historic Preservation (Continued)..................................................................................... 9 1.11 Maps...................................................................................................................................9 SECTION 2: EROSION AND SEDIMENT CONTROL BMPS................................................................. 10 SECTION 3: GOOD HOUSEKEEPING EMPS....................................................................................... 15 3.1 good Housekeeping BMPs.............................................................................................. 15 3.2 Allowable Non-Storlmwater Discharge Management..................................I................... 18 SECTION 4: SELECTING POST -CONSTRUCTION BMPs..................................................................... 19 SECTION 5: INSPECTIONS and MAINTENANCE ...... .......................................................................... � 20 5.1 Inspections... ................................................................ ......................... ......................... 20 5.2 Maintenance of Controls...................................................,..,........................................... 21 5.3 Corrective Action Log .................................. .............................. ............................... —.., 21 SECTION 6: Recordkeeping and Training............................................................................................. 22 6.1 Recordkeeping................................................................................................................. 22 6.2 Log of Changes to the SWPPP..................... .............. ............ ...................... I.................. 22 6.3 Training...........................................................................................................................23 SECTION 7: FINAL STABILIZATION..........................."....................,,..,............................I................. 24 SECTION S: CERTIFICATION AND NOTIFICATION............................................................................. 25 150 South Street Yarmouth, MA H Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA SECTION 1: SITE EVALUATION, ASSESSMENT, AND PLANNING 1.1 Project/Site Information Project Information: Project/Site Name: Gilmore Residence Project Street/Location. #150 South Street City: Yarmouth State: —MA. Zip Code: 02664 County or Similar Subdivision: _Barnstable County Latitude/Longitude (Use one of three possible formats, and specify method) Latitude; Longitude: 1. 41 (139100.88 " N (degrees, minutes, seconds) 1. 70 ° 11 ' 56.78" W (degrees, minutes, seconds) 2. _ _ ° -- _ _'N (degrees, minutes, decimal) 3. — — — — ° N (decimal) Method for determining latitude/longitude: ❑ USGS topographic map (specify scale: —1 2. T r ° _ _ __'W (degrees, minutes, decimal) 3. _ _ _ _ _ _ ° W (decimal) ❑ EPA Web site ❑ GPS M Other (please specify):_Google Earth/Mass GIS data Is the project located in Indian country? ❑ Yes N No If yes, name of Reservation, or if not part of a Reservation, indicate "not applicable." Is this project considered a federal facility? [J Yes M No NPDF,S project or pea-tnit tracking number: tbd (This is the unique identifying number assigned to your project by your permitting authority after you have applied for coverage under the appropriate NPDES construction general peiinit.) 150 South Street Yarmouth, MA Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA 1.2 Contact Inform ationlResponsable Parties Instrueti()IIs: • List the operator(s), project managers, stormwater manager, and person or organization that prepared the SWPPP. Indicate respective responsibilities, where appropriate. • Also, list subcontractors expected to work on -site. Notify subcontractors of stomiwater requirements applicable to their work. • See SWPPP Guide, Chapter 23, and your construction general permit for the definition of Operator. Project Information: inraforfs): .E Project,�na�er;(s� or,�S,ite Srr�ervisor�s}; Chris Kenney Kenney Builders Inc 603 West Yarmouth Rd West Yarmouth, MA 02673 508-394-2523 Sftarmwater iYlariagcx ��d S'V4�1PPP C�ntac#�,s�;, Joseph Gilmore 4 Doresett Dr East Walpole, MA 02032 Phone: 1-617-71 9-0008 ThisWFPF, Ws►s Pz'epr�rgd,I3,y„ Daniel A. ajala PE, PLS dawn cape engineering, Inc. 939 Main St. (Rt. 6a) Yar•mouthport, MA 02675 1-508-362-4541 email: downeape@downcape.com copies available by PDl~ upon request to this email address. 150 South Street Yarmouth, MA 2 Subcontractox(s),:. Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA TBD by Chris Kenney Kenney Builders Me 603 West Yarmouth Rd West Yarmouth, MA 02673 508-394-2523 Ei(tacr�cncy,24 hou�',corttact; TBD by Chris Kenney Kenney Builders Inc 603 West Yarmouth Rd West Yarmouth, MA 02673 508-394-2523 150 South Street Yarmouth, MA 3 Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA 1.3 Nature and Sequence of Construction Activity Instructions: • Briefly describe the nature of the construction activity and approximate timefrarnes (one or more paragraphs, depending an the nature and complexity of the project). Project Inrformation: * Describe the general scope of the work for the project, major phases of construction, etc: Proposed re -develop of an existing residential property bordering on Bass River. The 85,850 s,f, property is currently improved with two single family dwellings, these two separate dwellings are to be replaced by one proposed dwelling with an attached garage, pool and patio areas. The total number of bedrooms on the site will remain at nine. A new, upgraded septic system, the leaching area of which is located beyond the Outer Riparian Tone, is proposed to service the new dwelling What is the function of the construction activity? ® Residential ❑ Commercial ❑ Industrial ❑ Road Construction ❑ Linear Utility ❑ Other (please specify): Estimated Project Start Date: 4/1/2022 Estimated Project Completion Date: 4/1/2024 150 South Street Yarmouth, MA Stormwater pollution Prevention Plan (SWPPP) 150 South street Yarmouth, MA PON- 1.4 Soils, Slopes, Vegetation, and Current Drainage Patterns Project Information; _ aoil,ty,neOk • - Carver Loamy Coarse Sand, excessively drained. See attached soil maps. Slopes (describe current slopes and note any changes due to grading or fill activities): • 0-5°/u, fairly level site, Dxa nage Patterns (describe current drainage patters and note any changes dues to grading or fill activities): • Site is currently developed, natural drainage to sandy sub -soils • Site has very well drained soils due to sandy glacial outwash and level grades, see erosion and sedimentation control plan for temporary construction period BMPs. 150 South Street Yarwouth, NIA 5 1.5 Construction Site Estimates Pm'eet Information: The following are estimates of the construction site: Construction Site Area to be disturbed Total Project Area Stormwater Pollution prevention Plan (SWPPP) 150 South Street Yarmouth, MA 1.2 acres 2.0 acres Percentage impervious area before construction 15.8 % Runoff coefficient before construction .40 Percentage impervious area after construction 20.5 % Runoff coefficient after construction .43 150 South Street Yarmouth, MA 6 1.6 Receiving Waters Project Information: Description of receiving waters: Storrnwater Pollution Prevention Plan (S WPPP) 150 South Street Yarmouth, MA Bass River Description of storm sewer systems: nla onsite drainage system see plans Description of impaired waters or waters sut feet to TMDLs: nla 1.7 Site Features and Sensitive Areas to be Protected Project information: Description of unique features and measures to protect them: Site is relatively level, developed, silt fence will protect downgradient vegetation during construction. Groundwater will be recharged from onsite precipitation, no discharge offsite. 1.8 Potential Sources of Pollution Project Iinformation: Potentials sources of sediment to stormwater runoff: • Silt from disturbed topsoil and subsoil, site construction. Stockpiled soils, especially topsoil or subsoil, underlying material sand and not subject to forming silt. 150 South Street Yarmouth, MA 7 Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA 1.8 Potential Sources of Pollution (continued) Potential pollutants and sources, other than sediment, to stormwater runoff: • Potential fueling or light maintenance of vehicles and construction equipment. • Concrete and latex paint washout- containment areas proposed. 1.9 Endangered Species Certification Project Information: Are endangered or threatened species and critical habitats on or near the project area? El Yes E No Describe how this determination was made: Review of Mass GIS Mapping of Estimated and Priority Habitat for Rare Species under Mass Environmental Protection Act (MEPAINHESP) If yes, describe the species and/or critical habitat: n/a If yes, describe or refer to documentation which determines the likelihood of an impact on identified species and/or habitat and the steps taken to address that impact, (Note, if species are present on or near your project site, EPA strongly recommends that the site operator work closely with the appropriate field office of the U.S. Fish and 'Wildlife Service or National Marine Fisheries Service. Please contact a state or tribal official for concerns related to state or tribal listing of species.) 150 South Street 'Yarmouth, MA 8 Stormwater Pollution Prevention Flan (SWPPP) 150 South Street Yarmouth, MA 1. 10 Historic Preservation Projcct Information: Are there any historic sites on or neat the construction site? ❑ Yes ® No • Describe how this determination was made: knowledge of site + Jf yes, describe or refer to documentation which determines the likelihood of an impact on this historic site and the steps taken to address that impact. 1. 11 Maps Instructions: « Attach at least two site maps. The first should show the undeveloped site and its current features. An additional map or maps should be created to show the developed site or the major phases of development, for more complicated sites. ;�;k�ese ma�s,shae�ld.,nclWde;, • ❑ Direction(s) of stormwater flow and approximate slopes before and after major grading activities • ❑ Areas and timing of soil disturbance and areas that will not be disturbed • ❑ Natural features to be preserved • ❑ Locations of major structural and nonstructural BMPs identified in the SWPPP ❑ Locations and timing of stabilization measures + ❑ Locations of off -site material, waste, barrow, or equipment storage areas • ❑ Locations of all waters of the U.S., including wetlands • ❑ Locations where stormwater discharges to a surface water * ❑ Locations of storm drain inlets • D Areas where final stabilization has been accomplished • ❑ For more information, see SWPPP Guide, Chapter 3.C. Project Information: • Include the site maps with the SWPPP. SEE A'rrAC13ED MAPS/PLANS 150 Soutli Street Yarmouth, MA 9 Stormwater pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA SECTION 2: EROSION AND SEDIMENT CONTROL BMPS Project Information: 1. Minintize DisturbedArea and Protect Natural Features and Soil. Describe the areas that will be disturbed with each phase of construction and the methods (signs, fences, etc.) that you will use to protect those areas that should not be disturbed. Describe natural features identified earlier and how each will be protected during construction activity. Also describe how topsoil will be preserved. Include these areas and associated BMPS on your site map(s) also. (See SWPPP Guide, Chapter 4, ESC Principle 1 for more information.) Site is currently developed with buildings and pavement, silt fence shall be installed per plan prior to other work on the site. Demolish existing structures, install site utilities including drainage, lighting, water, gas and electric planned. Site will be stabilized with loam and seed, and vegetation established prior to silt fence removal and project Notice Of Termination filed. * Phase Construction Activity.. Describe the intended construction sequencing and timing of major activities, including grading activities, road and utility installation, and building phases * Phase I ❑ Silt fence installation, temporary erosion control area, Installation of 30 yard dutnpster outside of Inner Riparian zone, Demolish existing structures. ❑ Phase 1 starts 4l2022 Phase II 4/2022-4/2023 ❑ Construction of new dwelling, new utilities, septic, lighting, drainage, grading, sitework, paving, plantings, loam & seed, final cleanup and site stabilization. Site will be loamed and seeded, with grass stable, plantings in prior to filing Notice of Termination of coverage. 150 South Street Yarmouth, MA 10 5torenwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA 2. Control Stormwater, Flowing Onto and Tlrrouglr fire Prnjectr Describe structural practices (i.e., diversions, berms, ditches, storage basins) including design specifications and details used to divert flows from exposed soils, retain or detain flows, or otherwise limit runoff and the discharge of pollutants from exposed areas of the site. (See SWPPP Guide, Chapter 4, ESC Principle 3 for more information.) • Silt fence with coin logs around downgradient perimeter, utilizing sandy soils allow high infiltration rates on site. Silt sacks to be installed in existing drainage systems which will be utilized during construction period, cleaned as required. New drainage to be protected with silt sacks until site is stable. d. Stabilize Soils: Describe controls (i.e., temporary seeding with native vegetation, hydroseeding, etc.) to stabilize exposed soils where construction activities have temporarily or permanently ceased. Also describe measures to control dust generation. Use of impervious surfaces for stabilization should be avoided whenever possible. (See SWPPP Guide, Chapter 4, ESC Principle 4 for more information.) • BMP Description: Loam and Seed, Erosion control netting ® Peimanent ❑ Temporary • Installation Schedule: Prior to project completion • Maintenance and Inspection: Ensure grass germination and growth. • Responsible Staff: Site Operator/Contractor • BMP Description: Stockpile Silt Fence ❑ Permanent Temporary • Installation Schedule: Silt fence around all materials upon creation of pile • Maintenance and Inspection: Operator to inspect with regular inspections (see inspections) • Responsible Staff: Site Operator/Contractor 150 South Street Yarmouth, MA 11 Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarinouth, MA S. Pr-oleel Slopes. - Describe controls (i.e., erosion control blankets, tackifiers, eta) including design specifications and details that will be implemented to protect all slopes. (See SWPPP Guide, Chapter 4, ESC Principle 5 for more information.) • BMP Description: Silt Fence, Erosion Control netting on all exposed slopes. • Installation Schedule: After site clearing complete, after loaming for netting. • Maintenance and Inspection: After any rain event 0.5" or greater. • responsible Staff. Site Operator/Contractor 6. Now Storm Dr'nirr liilels. Describe controls (Le,, inserts, rock -filled bags, or block and gravel, etc.) including design specifications and details that will be implemented to protect all inlets receiving stormwater from the project during the entire duration of the project. (See SWPPP Guide, Chapter 4, ESC Principle b for more information.) • BMP Description: Silt Sack style Filter fabric between frame and grate, haybales around • Installation Schedule: Immediate for existing drainage. After new drainage installed, existing basins recharge on.site, will be utilized during construction, no offsite storm water discharge anticipated • Maintenance and Inspection: After any rain event 0.5" or greater • Responsible Staff: Site Operator/Contractor 150 South Street Yar'oiouth, MA 12 Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA 7 Establish perimeter controls reed sediment barriers. - Describe structural practices (Le,, silt fences or fiber rolls) including design specifications and details to filter and trap sediment before it leaves the construction site. (Sea SWPPP Guide, Chapter 4, ESC Principle 7 for more information.) BMP Description: Silt Fence Installation per plan • Installation Schedule: As soon as practical after site work begins. • Maintenance and Inspection: Inspect after each rain event in excess of 0.5". a Responsible Staff: Site Operator/Contractor a BMP Description: Temporary infiltration basins • Installation Schedule: As soon as practical after site work begins • Maintenance and Inspection: Inspect after each rain event in excess of 0.5", remove construction silt as required to maintain infiltration capacity. Responsible Staff: Site Operator/Contractor 8. Retain Sediment On -Site and Control Deivatering Practices: Describe sediment control practices (i.e., sediment trap or sediment basin), including design specifications and details (volume, dimensions, outlet structure) that will be implemented at the construction site to retain sediments on -site. Describe dewatering practices that will be implemented if water must be removed from an area so that construction activity can continue, (See SWPPP Guide, Chapter 4, ESC Principle 8 for more information.) • BMP Description: Sediment Trap/Retention Basin per plan specs, • Installation Schedule: Phase I utilize natural low area/silt fence around, a Maintenance and Inspection: Inspect after each rain event in excess of 0.5", Remove sediment to prevent standing water, and maintain infiltration capacity. • Responsible Staff: Site Operator/Contractor 150 South Street Yarmouth, NIA 13 Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yamouth, MA 9. Establish Stabilized Coushwedon Exits: Describe location(s) of vehicle entrance(s) and exit(s), procedures to remove accumulated sediment off -site (i.e., vehicle tracking), and stabilization practices (i.e., stone pads and/or wash racks) to minimize off -site vehicle tracking of sediments and discharges to storrnwater. (See SWPPP Guide, Chapter 4, ESC Principle 9 for more information.) • BMP Description: Temporary Washed Stone Construction Aprons, retain paved apron. • Installation Schedule: Prior to other construction activity on site. • Maintenance and Inspection: Inspect after every rain event 0.5" or greater, replenish or replace if aprons clog with silt, sweep apron as required. see plan. • Responsible Staff- 4 -10 Additional BBMPs. Site Operator/Contractor Describe additional EMPs that may not %t into the above categories. • nla 150 South Street Yarmouth, MA 14 Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA SECTION 3: GOOD HOUSEKEEPING BMPS 3.1 Good Housekeeping BMP Priiivet Information: 1. Material Handling and Waste Management: Describe measures (i.e., trash disposal, sanitary wastes, recycling, and proper material handling) to prevent the discharge of solid materials to waters of the U,S., except as authorized by a permit issued under section 404 of the CWA. (See SWPPP Guide, Chapter 5, P2 Principle 1) • BMP Description: Temporary Sanitary Facilities • Installation Schedule: Prior to regular construction on site • Maintenance and Inspection: Per contract with provider Responsible Staff: • BMP Description: Operator/Contractor Street Sweeping • Installation Schedule; As required by site conditions. • Maintenance and Inspection: visual inspection of tracking Responsible Staff: Operator/contractor t 50 South Street Yarmouth, MA 15 Stormwater Pollution Prevention Platt (SWPPP) ISO South Street Yarmouth, MA 2. Establish .P,•oper Building Material Staging Areas: Describe construction materials expected to be stored on -site and procedures for storage of materials to minimize exposure of the materials to stormwater. (See SWPPP Guide, Chapter 5, P2 Principle 2 for more information.) + BMP Description: Store any paint etc. under cover of tarps or roof: + Installation Schedule: as required • Maintenance and Inspection: as required by construction Responsible Staff: 3. Designate Washout Areas: Operator/Contractor Describe location(s) and controls to minimize the potential for stormwater pollution from washout areas for concrete mixers, paint, stucco, etc. (See SWPPP Guide, Chapter 5, P2 Principle 3 for more information.) + BMP Description: Concrete washout Area- utilize premanufactured unit or construct with 10 mil plastic- onsite constructed requires frequent inspection. + Installation Schedule: Prior to concrete being poured onsite ■ Maintenance and Inspection: Only one foundation onsite- limited use, maint. as req. per industry standard. + Responsible Staff: Operator/Contractor • BMP Description: Paint Washout- utilize premanufactured unit • Installation Schedule: Prior to painting onsite • Maintenance and Inspection: As required by industry standard + Responsible Staff: Operator/Contractor 150 South Street Yarmouth, MA 16 Stormwater Pollution PrevcnNon Plan (SWPPP) tree( Yarrnnn 4. Establish proper equipmeni/veldcle fueling and maintenance practices. Describe equipment/vehicle fueling and maintenance practices that will be implemented to control pollutants to stormwater (e.g., secondary containment, drip pans, spill kits, etc.) (See SWPPP Guide, Chapter 5, P2 Principle 4 for more information.) + BMP Description: Fuel over bare ground in designated area, have drip pan available. Spill Kit shall be available. • Installation Schedule: drip pan and spill kit onsite prior to refueling • Maintenance and Inspection: inspect refueling area for signs of staining after every rainstorm of 0.5" or greater. • Responsible Staff: Owner/Contractor S. Allowable non-stormnvater discharges and control equipmeutIvehicle washing. For the allowable non-stormwater discharge(s) associated with construction industrial activity identified, describe controls and measures that will be implemented at those sites to minimize pollutant discharges. (See SWPPP Guide, Chapter 5, P2 Principle 5 for more information.) • BMP Description: Vehicle Washing Area- designate on plan • Installation Schedule: Wash only if required, avoid detergents. • Maintenance and Inspection: Inspect area after every rain event of 0.5" or greater • Responsible Staff: Owner/Contractor (vehicle washing discouraged onsite) 150 South Street Yarmouth, MA 17 Stoimwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA 6. Spill Prevention and Control Plain Describe the spill prevention and control plan to include ways to reduce the chance of spills, stop the source of spills, contain and clean up spills, dispose of materials contaminated by spills, and train personnel responsible for spill prevention and control. (See SWPPP Guide, Chapter 5, P2 Principle 6 for more information.) REFERENCE ATTACHMENT, SPILL KIT REQ'D. z Arey Additr'onal BMPs: NIA 3.2 Allowable Non-Stormwater Discharge Management Instructions: • Identify all allowable sources of non-stoimwater discharges (except flows from firefighting activities) that are not identified above. • Identify measures used to eliminate or reduce these discharges and the BMPs used to prevent them from becoming contaminated. • For more information, see SWPPP Guide, Chapter 3.A. Also, review your permit for exact details, Projeet Information: List allowable non-stormwater discharges and the measures used to eliminate or reduce them and to prevent them from becoming contaminated: • N/A 150 South Street Yarmouth, MA 18 StormwaterPoll utlon Prevention plan (SWPPP) 150 South Street Yarmouth, MA SECTION 4. SELECTING POST -CONSTRUCTION BUIPS Instructions. _ Describe all post -construction stormwater management measures that will be installed during the construction process to control pollutants in stormwater discharges after construction operations have been completed, Examples of post -construction BMPs include: ❑ Bioflters ❑ Detention/retention devices D Earth dikes, drainage swales, and lined ditches Z Infiltration Basins ❑ Porous Pavement ❑ Other proprietary permanent structural BMPs ❑ Outlet protection/velocity dissipation devices ❑ Slope protection ® Vegetated strips andlor swales Identify any applicable federal, state, local, or tribal requirements for design or installation. • Describe how low impact designs or smart growth considerations have been incorporated into the design. • Any structural BMPs should have design speeffl cations and details referred to and attached as appendices to the SWPPP. • For more information on this topic, please refer to your state's stormwater manual. • You may also want to consult one of the references listed in Appendix D of the SWPPP Guide, • Visit the post -construction section of EPA's Menu of BMPs at; www.e2a,Sov/npcsJmenuofbmys Project Information. • BMP Description: Natural Drainage to sandy subsoils Installation Schedule: NIA • Maintenance and Inspection: Per Stormwater Operations and Maitstcnance Plan for site. Responsible Staff: Owner 19 150 South Street Yarmouth, NIA Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA SECTION 5: INSPECTIONS and MAINTENANCE 5.1 Inspections Project Information: 1, Inspection Personnel Identify the person(s) who will be responsible for conducting inspections and describe their qualifications. Site Operator/Contractor, ( TBD)(will utilize experienced local site contractor) is the responsible person to review all SWPPP documentation. Will conduct review with owners engineer. 2. Inspection Schedide and Procedures: i. Describe the inspection schedules and procedures you have developed for your site (include frequency of inspections for each BMP or group of BMPs, indicate when you will inspect, e.g, before/during/and after rain events, spot inspections, etc.). • Inspect all BMP's after every rain event in excess of 0.5" during construction period, or every two weeks, whichever occurs sooner. See inspection logs for required information. ii. Describe the general procedures for correcting problems when they are identified. Include responsible staff and timeframes for making corrections. • All BMP's will be repaired as required, deficiencies discovered during inspections shall be remedied as soon as possible after discovery. iii. Attach a copy of the inspection report you will use for your site. • REFERENCE ATTACHMENT 150 South Street Yarmouth, MA 20 Stormwater Pollution Prevention Plan (SWPPP) rmouth, M 5.2 Maintenance of Controls Project Informations Maintenance Procedures: Site Operator/Contractor will replenish/replace stone aprons and repair silt fence, remove accumulated silt at fence per plan, properly operate washout stations, and repair any deficiencies to original specifications. Operator shall ensure spill kit and drip pan onsite at all times. Document all repairs in corrective actions log see Section 5.3 and document maintenance per inspection reports in 6.1 below. 5.3 Corrective Action Log Instructions; To be utilized by Site Operator/Contractor to document any Corrective Actions taken �roj��Inl�ar�atian: _ Corrective Action Log: REFERENCE A TTA CHMENT 150 South Street Yarmouth, MA 21 Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA SECTION 6: Recardkeeping and Training & 1 Recordkeepirrg Instructions: The following is a list of records you should keep at your project site available for inspectors to review: • Dates of grading, construction activity, (and stabilization which is covered in Section 7). * A copy of the construction general permit (attach). • The signed and certified NOI form or permit application form (attach). • A copy of the letter from the EPA/State notifying you of their receipt of your complete NOIfapplication (attach). • Inspection reports (attach). • Records relating to endangered species and historic preservation (attach). • Check your permit for additional details. • For more on this subject, see SWPPP Guide, Chapter &C. Project Information: Dates when major grading activities occur: • To be noted Dates when construction activities temporarily or permanently cease on a portion of the site • To be noted - estimated 4/2023. 6.2 Log of Changes to the SWPPP Ynstructionm Create a log here, or as an attachment, of changes and updates to the SWPPP. You should include additions of new BMPs, replacement of failed BMPs, significant changes in the activities or their timing on the project, changes in personnel, changes in inspection and maintenance procedures, and updates to site maps, etc. Project Information: I,og of changes and updates to the SWPPP OPERATOR TO UTILIZE ATTACHMENT APP.G 150 South Street Yarmouth, MA 22 Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA 6.3 Training Instructions: • Training your staff and subcontractors is an effective BMP, As with the other steps you talce to prevent stormwater problems at your site, you should document the training that you conduct for your staff, for those with specific stormwater responsibilities (e.g. installing, inspecting, and maintaining BMPs), and for subcontractors. * Include dates, number of attendees, subjects covered, and length of training. For more on this subject, see SWPPP Guide, Chapter S. Project Information: Describe Training Conducted; • General stormwater and BMP awareness training for staff and subcontractorss Reading and familiarization of SWPPP and plans and view of BMP's at site. Detailed training for staff and subcontractors with specific stonnwater responsibilities Operator/Contractor to be familiar with SWPPP and capable of performing maintenance described in 5.2 Individual(s) Responsible for Training: • Operator/Contractor- TBD....Owners engineer also available 1-508-362-4541 x106 downeape Z- downcapexom Daniel A, Ojala PE, PLS 150 South Street Yarmouth, MA 23 Stormwater Pollution Prevention Plan (SWPPP) 150 South Street Yarmouth, MA SECTION l: FINAL STABILIZATION Instructions'. • Describe procedures for final stabilization. If you complete major construction activities on part of your site, you can document your final stabilization efforts for that portion of the site. Many permits will allow you to then discontinue inspection activities in these areas (be sure to check your permit for exact requirements.) You can amend or add to this section as areas of your project are finally stabilized, • Update your site plans to indicate areas that have achieved final stabilization. • For more on this topic, see SWPPP Guide, Chapter 9. Project Information: • All areas not covered by the building or paving will be loaned and seeded, and the site vegetation established prior to Notice of Termination and silt fence removal. Level site, sandy soils. See plans. 150 South Street Yarmouth, MA 24 Stormwater Pollutions prevention Plan (SWPPP) 150 South Street Yarrnouth, NIA SECTION S; CERTIFICATION AND NOTIFICATION Instructions: • The SWPPP should be signed and certified by the construction operator(s). Attach a copy of the NOI and permit authorization letter received fi•orn EPA or the State in Appendix D. Project Information:150 South Street, Yarmouth MA 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. used on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Name: Title: Signature: Date: I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Name: Signature: Title: Date: ISO South Street Yarmouth, MA 25 STORMWATER OPERATIONS AND MAINTENANCE PLAN: 4150 South Street, South Yarmouth, MA DATE: 3-10-2022 Prepared by: down cape engineering, inc. 939 Route 6a Yarmouthport, MA 02675 Ph. 1-508-362-4541 Fax 1-508-362-9880 21-158 #150 South Street, South Yarmouth Stormwater Operations and Maintenance Plan STORMWATER OPERATIONS AND MAINTENANCE PLAN: #150 South Street, South Yarmouth, MA TABLE OF CONTENTS 1. Owner of Stormwater System and Responsible Party for Operation and Maintenance 2. Overview of Stormwater Management System 3. Source Control Best Management Practices 4. Schedule of Inspection and Maintenance of System 5. Plan of Stormwater BMPs location for maintenance (see attached Site Plans) 6. Estimated operations and maintenance budget 21-158 #150 South Street, South Yarmouth Stormwater Operations and Maintenance Plan STORMWATER OPERATIONS AND MAINTENANCE PLAN: #150 South Street, South Yarmouth, MA OWNER OF STORMWATER SYSTEM AND RESPONSIBLE PARTY FOR OPERATIONS AND MAINTENANCE: OWNER/RESPONSIBLE PARTY: Joseph Gilmore 4 Doresett Drive East Walpole, NIA 617-719-0008 21-158 #150 South Street, South Yarmouth Stormwater Operations and Maintenance Plan STORMWATER OPERATIONS AND MAINTENANCE PLAN: 4150 South Street, South Yarmouth, MA OVERVIEW OF STORMWATER MANAGEMENT SYSTEM: The drainage systems specified for proposed development area have been designed in accordance with Town of Yarmouth Subdivision Rules and Regulations and engineering department guidelines. The system has been designed to fully comply with the Stormwater Management Guidelines. The system utilizes natural drainage swales and gutters and downspouts to subsurface drywells to infiltrate the roof runoff. The proposed use is a typical residential lot and is not a "Land Use with Higher Potential Pollutant Load" per the State Stormwater Management Guidelines. The underlying material is sand, hydrologic group A under the guidelines. During construction the installation of silt controls near the down gradient border will provide protection. The erosion control fence is to be inspected after every rain event and is to be maintained until the site is stabilized. Best Management Practices incorporated in the project are as follows: -Natural drainage swales (90% TSS Removal) -Infiltration Trenches/Pit (80% TSS Removal) 21-158 #150 South Street, South Yarmouth Stormwater Operations and Maintenance Plan STORMWATER OPERATIONS AND MAINTENANCE PLAN: #150 South Street, South Yarmouth, MA SCHEDULE OF INSPECTION AND MAINTENANCE OF STORMWATER MANAGEMENT SYSTEM: SCHEDULE OF INSPECTION AND MAINTENANCE: The stormwater management system proposed for the site requires regular inspection and maintenance to ensure proper operation and effectiveness. 1. Mow and maintain grass swales as needed. If slow infiltration is noted during storm events, the bottom of the swales should be scarified to restore infiltration. 2. Inspect and clean gutters annually. 21-158 #150 South Street, South Yarmouth Stormwater Operations and Maintenance Plan STORMWATER OPERATIONS AND MAINTENANCE PLAN: #150 South Street, South Yarmouth, MA SOURCE CONTROL BEST MANAGEMENT PRACTICES: 1. No illicit discharges of any type are allowed into the storm water drainage system or septic system. Personnel should be instructed in proper disposal of any cleaning materials, paints, chemicals, or other potentially harmful substances utilized on or about the property. 2. Fertilizer shall not be applied during or immediately prior to heavy rainfall, between November 12 and the following March 31, on impervious surfaces or in a manner that allows it to enter storm drains, or within 100 feet of any surface water or within the Zone I of a public drinking water well. Fertilizer containing phosphorus shall not be applied. A single application of fertilizer that contains nitrogen shall not exceed 1.0 pound of nitrogen per 1,000 square feet, shall consist of at least 20% slow -release nitrogen fertilizer and the annual rate shall not exceed 3.2 pounds of actual nitrogen per thousand square feet. Single application shall be done at intervals of no less than four weeks until the annual maximum is reached. 3. Grass clippings, leaves, or any other vegetative debris shall not be deposited into or within 50' of water bodies, retention and detention areas, drainage ditches or stormwater drains, or onto impervious surfaces, such as, but not limited to, roadways and sidewalks, except during scheduled cleanup programs. 21-158 #150 South Street, South Yarmouth Stormwater Operations and Maintenance Plan STORMWATER OPERATIONS AND MAINTENANCE PLAN: #150 South Street, South Yarmouth, MA ESTIMATED OPERATIONS AND MAINTENANCE BUDGET: Inspections: Annual inspection of drainage system: Visual inspection, review for signs of drainage issues, ...Est. $150/visit = $150/year. Gutter cleaning: once every year or as needed - $200/cleaning. 21-158 #150 South Street, South Yarmouth Stormwater Operations and Maintenance Plan Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands Program Checklist for Stormwater Report A. Introduction Important: When A Stormwater Report must be submitted with the Notice of Intent permit application to document filling out forms compliance with the Stormwater Management Standards. The following checklist is NOT a substitute for on the computer,the Stwater Re which should provide more substantive and detailed information) but is offered ta use only the tab ormport ( key to move your here as a tool to help the applicant organize their Stormwater Management documentation for their cursor - do not Report and for the reviewer to assess this information in a consistent format. As noted in the Checklist, use the return the Stormwater Report must contain the engineering computations and supporting information set forth in key. Volume 3 of the Massachusetts Stormwater Handbook. The Stormwater Report must be prepared and certified by a registered Professional Engineer (RPE) licensed in the Commonwealth. �Q The Stormwater Report must include; • The Stormwater Checklist completed and stamped by a Registered Professional Engineer (see page 2) that certifies that the Stormwater Report contains all required submittals.' This Checklist is to be used as the cover for the completed Stormwater Report. • Applicant/Project Name • Project Address • Name of Firm and Registered Professional Engineer that prepared the Report • Long -Term Pollution Prevention Plan required by Standards 4-6 • Construction Period Pollution prevention and Erasion and Sedimentation Control Plan required by Standard 82 • Operation and Maintenance Plan required by Standard 9 In addition to all plans and supporting information, the Stormwater Report must include a brief narrative describing stormwater management practices, including environmentally sensitive site design and LID techniques, along with a diagram depicting runoff through the proposed BMP treatment train. plans are required to show existing and proposed conditions, identify all wetland resource areas, MRCS soil types, critical areas, Land Uses with Higher Potential Pollutant Loads (LUHPPL), and any areas on the site where infiltration rate is greater then 2.4 inches per hour, The Plans shall identify the drainage areas for both existing and proposed conditions at a scale that enables verification of supporting calculations. As noted in the Checklist, the Stormwater Management Report shall document compliance with each of the Stormwater Management Standards as provided in the Massachusetts Stormwater Handbook. The soils evaluation and calculations shall be done using the methodologies set forth in Volume 3 of the Massachusetts Stormwater Handbook. To ensure that the Stormwater Report is complete, applicants are required to fill in the Stormwater Report Checklist by checking the box to indicate that the specified information has been included in the Stormwater Report. If any of the information specified in the checklist has not been submitted, the applicant must provide an explanation. The completed Stormwater Report Checklist and Certification must be submitted with the Stormwater Report- ' The Stormwater Report may also include the Illicit Discharge Compliance Statement required by Standard 10. If not included in the Stormwater Report, the Illicit Discharge Compliance Statement must be submitted prior to the discharge of storrnwater runoff to the post-consttuctlon best management practices. s For some complex projects, it may not be possible to Include the Construction Period Erosion and Sedimentation Control Plan in the Stormwater Report. In that event, the issuing authority has the discretion to issue an Order of Conditions that approves the project and includes a condition requiring the proponent to submit the Construction Period Erosion and Sedimentation Control Plan before commencing any land disturbance acllVlty on the site. Stormwater Report Checklist. DOC • O4101108 Stormwater Report Checklist - Page 1 of 8 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands Program Checklist for Stormwater Report B. Stormwater Checklist and Certification The following checklist is intended to serve as a guide for applicants as to the elements that ordinarily need to be addressed in a complete Stormwater Report_ The checklist is also intended to provide conservation commissions and other reviewing authorities with a summary of the components necessary for a comprehensive Stormwater Report that addresses the ten Stormwater Standards. !Vote: Because Stormwater requirements vary from project to project, it is possible that a complete Stormwater Report may not include information on some of the subjects Specified in the Checklist. If it is determined that a specific item does not apply to the project under review, please note that the item is not applicable (N.A.) and provide the reasons for that determination. A complete checklist must include the Certification Set forth below signed by the Registered Professional Engineer who prepared the Stormwater Report. Registered Professional Engineer's Certification I have reviewed the Stormwater Report, including the soil evaluation, computations, Long-term Pollution Prevention Plan, the Construction Period Erosion and Sedimentation Control Plan (if included), the Long- term Post -Construction Operation and Maintenance flan, the Illicit Discharge Compliance Statement (if included) and the plans showing the stormwater management system, and have determined that they have been prepared in accordance with the requirements of the Stormwater Management Standards as further elaborated by the Massachusetts Stormwater Handbook. I have also determined that the information presented in the Stormwater Checklist is accurate and that the information presented in the Stormwater Report accurately reflects conditions at the site as of the date of this permit application. Registered Professional Engineer Block and Signature Signature and date Checklist Project Type: Is the application for new development, redevelopment, or a mix of new and redevelopment? ❑ New development IQ Redevelopment ❑ Mix of New Development and Redevelopment Stormwater Report Checklist.DOC - 04101/08 Stormwater Report Checklist • Page 2 of 8 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands Program Checklist for Stormwater Report Checklist (continued) LID Measures: Stormwater Standards require LID measures to be considered. Document what environmentally sensitive design and LID Techniques were considered during the planning and design of the project, No disturbance to any Wetland Resource Areas ❑ Site Design Practices (e.g, clustered development, reduced frontage setbacks) ❑ Deduced Impervious Area (Redevelopment Only) ❑ Minimizing disturbance to existing trees and shrugs ❑ LID Site Design Credit Requested: ❑ Credit 1 ❑ Credit 2 ❑ Credit 3 ❑ Use of "country drainage" versus curb and gutter conveyance and pipe gioretenticn Cells (includes Bain Gardens) ❑ Constructed Stormwater Wetlands (includes Gravel Wetlands designs) ❑ Treebox Filter ❑ Water Quality Swale ❑ Grass Channel j] Green Roof ❑ Other (describe): Standard 1: No New Untreated Discharges No new untreated discharges ❑ Outlets have been designed so there is no erosion or scour to wetlands and waters of the Commonwealth ❑ Supporting calculations specified in Volume 3 of the Massachusetts Stormwater Handbook included. Stormwater Report Checkllst.DOC - 04101/08 _ Stormwater Report Checklist • Page 3 of 8 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands Program Checklist for Stormwater Report Checklist (continued) Standard 2: Peak Date Attenuation Standard 2 waiver requested because the project is located in land subject to coastal storm flowage and stormwater discharge is to a wetland subject to coastal flooding. ❑ Evaluation provided to determine whether off -site flooding increases during the 100-year 24-hour storm. ❑ Calculations provided to show that post -development peak discharge rates do not exceed pre - development rates for the 2-year and 10-year 24-hour storms, If evaluation shows that off site flooding increases during the 100-year 24-hour storm, calculations are also provided to show that post -development peak discharge rates do not exceed pre -development rates for the 100-year 24- hour storm. Standard 3: Recharge Soil Analysis provided. ❑ Required Recharge Volume calculation provided. ❑ Required Recharge volume reduced through use of the LID site Design Credits. ❑ Sizing the infiltration, RMPs is based on the following method: Check the method used, ❑ static ❑ Simple Dynamic ❑ Dynamic Field' ❑ Runoff from all impervious areas at the site discharging to the infiltration BMP. ❑ Runoff from all impervious areas at the site is not discharging to the infiltration BMP and calculations are provided showing that the drainage area contributing runoff to the infiltration BMPs is sufficient to generate the required recharge volume. ❑ Recharge BMPs have been sized to infiltrate the Required Recharge Volume. ❑ Recharge BM Ps have been sized to infiltrate the Required Recharge Volume only to the maximum extent practicable for the following reason: ❑ Site is comprised solely of C and D soils and/or bedrock at the land surface ❑ M.G,L. c. 21E sites pursuant to 310 CMR 40.0000 ❑ Solid Waste Landfill pursuant to 310 CMR 19.000 ❑ Project is otherwise subject to Stormwater Management Standards only to the maximum extent practicable. ❑ Calculations showing that the infiltration BMPs will drain in 72 hours are provided. ❑ Property includes a M.G. L. c. 21 E site or a solid waste landfill and a mounding analysis is included. ' 80% TSS removal Is required prior to discharge to infiltration BMP if Dynamic Field method is used- Stormwater Report Meckllst.aoC • 04f01/08 Stormwater Report Checklist - Page 4 of 8� Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands Program Checklist for Stormwater Report Checklist (continued) Standard 3: Recharge (continued) ❑ The infiltration BMP is used to attenuate peak flows during storms greater than or equal to the 10- year 24-hour storm and separation to seasonal high groundwater is less than 4 feet and a mounding analysis is provided. ❑ Documentation is provided showing that infiltration BMPs do not adversely impact nearby wetland resource areas. Standard 4: Water Quality The Long -Term Pollution Prevention Plan typically includes the following: • Good housekeeping practices; • Provisions for storing materials and waste products inside or under cover; • Vehicle washing controls; • Requirements for routine inspections and maintenance of stormwater BMPs; • Spill prevention and response plans; • Provisions for maintenance of lawns, gardens, and other landscaped areas; • Requirements for storage and use of fertilizers, herbicides, and pesticides; • Pet waste management provisions; • Provisions for operation and management of septic systems; • Provisions for solid waste management; • Snow disposal and plowing plans relative to Wetland Resource Areas; • Winter Road Salt and/or Sand Use and Storage restrictions; • Street sweeping schedules; • Provisions for prevention of illicit discharges to the stormwater management system; • Documentation that Stormwater BMPs are designed to provide for shutdown and containment in the event of a spill or discharges to or near critical areas or from LUHPPL; • Training for staff or personnel involved with implementing Long -Term Pollution Prevention Plan; • List of Emergency contacts for implementing Long -Term Pollution Prevention Plan. ❑ A Long -Term Pollution Prevention Plan is attached to Stormwater Report and is included as an attachment to the Wetlands Notice of Intent. ❑ Treatment BMPs subject to the 44% TSS removal pretreatment requirement and the one inch rule for calculating the water quality volume are included, and discharge: ❑ is within the Zone II or Interim Wellhead Protection Area ❑ is near or to other critical areas ❑ is within soils with a rapid infiltration rate (greater than 2.4 inches per hour) ❑ involves runoff from land uses with higher potential pollutant loads. ❑ The Required Water Quality Volume is reduced through use of the LID site Design Credits. ❑ Calculations documenting that the treatment train meets the 80% TSS removal requirement and, if applicable, the 44% TSS removal pretreatment requirement, are provided. Stormwater Report Checklist.DOC • 04/01/08 Stormwater Report Checklist • Page 5 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands Program Checklist for Stormwater Report Checklist (continued) Standard 4: Water Quality (continued) ❑ The BMP is sized (and calculations provided) based on: ❑ The'/z" or 1" Water Quality Volume or ❑ The equivalent flow rate associated with the Water Quality Volume and documentation is provided showing that the BMP treats the required water quality volume. ❑ The applicant proposes to use proprietary BMPs, and documentation supporting use of proprietary BMP and proposed TSS removal rate is provided. This documentation may be in the form of the propriety BMP checklist found in Volume 2, Chapter 4 of the Massachusetts Stormwater Handbook and submitting copies of the TARP Report, STEP Report, and/or other third party studies verifying performance of the proprietary BMPs. ❑ A TMDL exists that indicates a need to reduce pollutants other than TSS and documentation showing that the BMPs selected are consistent with the TMDL is provided. Standard 5: Land Uses With Higher Potential Pollutant Loads (LUHPPLs) ❑ The NPDES Multi -Sector General Permit covers the land use and the Stormwater Pollution Prevention Plan (SWPPP) has been included with the Stormwater Report. ❑ The NPDES Multi -Sector General Permit covers the land use and the SWPPP will be submitted prior to the discharge of stormwater to the post -construction stormwater BMPs. ❑ The NPDES Multi -Sector General Permit does not cover the land use. ❑ LUHPPLs are located at the site and industry specific source control and pollution prevention measures have been proposed to reduce or eliminate the exposure of LUHPPLs to rain, snow, snow melt and runoff, and been included in the long term Pollution Prevention Plan. ❑ All exposure has been eliminated. ❑ All exposure has not been eliminated and all BMPs selected are on MassDEP LUHPPL list. ❑ The LUHPPL has the potential to generate runoff with moderate to higher concentrations of oil and grease (e.g. all parking lots with >1000 vehicle trips per day) and the treatment train includes an oil grit separator, a filtering bioretention area, a sand filter or equivalent. Standard 6: Critical Areas ❑ The discharge is near or to a critical area and the treatment train includes only BMPs that MaSSDEP has approved for stormwater discharges to or near that particular class of critical area. ❑ Critical areas and BMPs are identified in the Stormwater Report. Stormwater Report Checklist.DOC • 04/01/08 Stormwater Report Checklist • Page 6 of 8 Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands Program Checklist for Stormwater Report Checklist (continued) Standard 7: Redevelopments and other Projects Subject to the Standards only to the maximum extent practicable The project is subject to the Stormwater Management Standards only to the maximum Extent Practicable as a: ❑ Limited Project ❑ Small Residential Projects: 5-9 single family houses or 5-9 units in a multifamily development provided there is no discharge that may potentially affect a critical area. Small Residential Projects: 2_4 single family houses or 2-4 units in a multi -family development with a discharge to a critical area ❑ Marina and/or boatyard provided the hull painting, service and maintenance areas are protected from exposure to rain, snow, snow melt and runoff ❑ Pike path and/or Foot Path Redevelopment Project ❑ Redevelopment portion of mix of new and redevelopment. [] Certain standards are not fully met (Standard No. 1, 8, 9, and 10 must always be fully met) and an explanation of why these standards are not met is contained in the Stormwater Report. ❑ The project involves redevelopment and a description of all measures that have been taken to improve existing conditions is provided in the Stormwater Report. The redevelopment checklist found in Volume 2 Chapter 3 of the Massachusetts Stormwater Handbook may be used to document that the proposed Stormwater management system (a) complies with Standards 2, 3 and the pretreatment and structural SMP requirements of Standards 4-6 to the maximum extent practicable and (b) improves existing conditions. Standard S: Construction Period Pollution Prevention and Erosion and Sedimentation Control A Construction Period Pollution Prevention and Erosion and Sedimentation Control Plan must include the following information: # Narrative; • Construction Period Operation and Maintenance Plan; • Names of Persons or Entity Responsible for Plan Compliance; • Construction Period Pollution Prevention Measures; Erosion and Sedimentation Control Plan Drawings; + Detail drawings and specifications for erosion control FSMPs, including sizing calculations; + Vegetation Planning; • Site Development Plan; Construction Sequencing Plan; + Sequencing of Erosion and Sedimentation Controls; • Operation and Maintenance of Erosion and Sedimentation Controls; • Inspection Schedule; • Maintenance Schedule; • Inspection and Maintenance Log Form. ❑ A Construction Period pollution Prevention and Erosion and Sedimentation Control Plan containing the information set forth above has been included in the Stormwater Report. Stormwater Report Checklist,DOC • 04101108 Stormwater Report Checkllst - Page 7 of 8 Lll�Massachusetts Department of Environmental Protection Bureau of Resource Protection - Wetlands Program Checklist for Stormwater Report Checklist (continued) Standard 8: Construction Period Pollution Prevention and Erosion and Sedimentation Control (continued) ❑ The project is highly complex and information is included in the Stormwater Report that explains why it is not possible to submit the Construction Period Pollution Prevention and Erosion and Sedimentation Control Plan with the application. A Construction Period Pollution Prevention and Erosion and Sedimentation Control has not been included in the Stormwater Report but will be submitted before land disturbance begins. ❑ The project is not covered by a NPDES Construction General Permit ❑ The project is covered by a NPDES Construction General Permit and a copy of the SWPPP is in the Stormwater Report. ❑ The project is covered by a NPDES Construction General Permit but no SWPPP been submitted. The SWPPP will be submitted BEFORE land disturbance begins. Standard 9: Operation and Maintenance Plan ❑ The Post Construction Operation and Maintenance Plan is included in the Stormwater Report and includes the following information: ❑ Name of the stormwater management system owners; ❑ Party responsible for operation and maintenance; ❑ Schedule for implementation of routine and non -routine maintenance tasks; ❑ Plan showing the location of all stormwater BMPs maintenance access areas; ❑ Description and delineation of public safety features; ❑ Estimated operation and maintenance budget; and ❑ Operation and Maintenance Log Form. ❑ The responsible party is not the owner of the parcel where the BMP is located and the Stormwater Report includes the following submissions: ❑ A copy of the legal instrument (deed, homeowner's association, utility trust or other legal entity) that establishes the terms of and legal responsibility for the operation and maintenance of the project site stormwater BMPs; ❑ A plan and easement deed that allows site access for the legal entity to operate and maintain BMP functions. Standard 10: Prohibition of Illicit Discharges ❑ The Long -Term Pollution Prevention Plan includes measures to prevent illicit discharges; ❑ An Illicit Discharge Compliance Statement is attached; ❑ NO Illicit Discharge Compliance Statement is attached but will be submitted prior to the discharge of any stormwater to post -construction BMPs. Stormwater Report Checklist.DOC • 04/01/08 Stormwater Report Checklist • Page 8 of 8