Town of Falmouth Stormwater Program


Photo taken July 7, 2017, 850 Main Street, Falmouth

Town of Falmouth 
National Pollutant Discharge Elimination System (NPDES) Documents

Stormwater Management Program (SWMP) Plan: June 30, 2019 - Last Revised June 30, 2022 Appendices below


Appendix A - Notice of Intent and Authorization to Discharge
Appendix B - Stormwater Bylaws and Regulations
        Adopted regulations are here - 9/27/2021 Regulations  
Appendix C - Stormwater System Mapping
Appendix D - Regulatory Assessments
Appendix E - Inventory and Ranking of Town-Owned Property
Appendix F - Street Sweeping Optimization Plan
Appendix G - Catch Basin Optimization Plan
Appendix H - List of Stormwater BMPs and Inspection Records
Appendix I - Annual Reports

Annual Reports

Year 1 Annual Report 5/1/18-6/30/19
Year 2 Annual Report 7/1/19-6/30/20
BMP Pollutant Reduction Credits 4-2021
Year 3 Annual Report 7/1/20-6/30/21
Year 4 Annual Report 7/1/21-6/30/22
Falmouth Phosphorus Source Identification Report: Ashumet Pond June 30, 2022
Falmouth Outfall Screening
Municipal Property BMP Retrofits
Year 5 Annual Report 7/1/2022-6/30/2023
Falmouth Phosphorus Source Identification Report: Ashumet Pond Updated June 30, 2023

Superceded Stormwater Management Program (SWMP) Plans

2019 Original Report
2021 Revised Report

Illicit Discharge Detection and Elimination (IDDE) Plan

Appendix A: Stormwater System Mapping
Appendix B: SSO Inventory
Appendix C: IDDE Outfall Classification/Ranking and Vulnerability Assessment
Appendix D: SOPs for Dry Weather Outfall Investigation/Sampling
Appendix E: SOP for Illicit Discharge Source Investigation
Appendix F: SOP for Dry Weather Key Junction Investigation/Sampling
Appendix G: SOP for Wet Weather Outfall Sampling
Appendix H: Field Evaluation Records
Appendix I: IDDE Employee Training Records (See Below)


Appendix I

Operations and Maintenance Plan

Stormwater Pollution Prevention Plan and Spill Prevention Control and Countermeasure Plan for DPW Garage (AKA SWPPP & SPCC)


Appendix D - Spill Reporting Log
Appendix E - Employee Training Log
Appendix F - SWPPP Inspection Records
Appendix H - SPCC Inspection Records

Please direct any questions, comments, or concerns regarding the NPDES program to the Engineering Division email at Engineering or call 508-457-2543.  

Stormwater discharges in the Town of Falmouth are regulated by the U.S. Environmental Protection Agency (EPA) National Pollutant Discharge Elimination System (NPDES) Phase II Stormwater Permit Program. Under this program, Falmouth was required to obtain NPDES permit coverage under the 2016 "General Permit for Stormwater Discharges from Small Municipal Separate Storm Sewer Systems (MS4s)" for its stormwater discharges. This permit program was created with the intention of improving the quality of the nation’s waterways by reducing pollutant loads associated with stormwater runoff. Under this permit, Falmouth is required to develop and implement a Notice of Intent (NOI) and Stormwater Management Program (SWMP), which identifies Best Management Practices (BMPs) the Town will implement to address the following six "minimum control measures (MCMs)":

  1. Public Education and Outreach
  2. Public Participation and Involvement
  3. Illicit Discharge Detection and Elimination
  4. Construction Site Runoff Control
  5. Post-Construction Runoff Control
  6. Pollution Prevention/Good Housekeeping for Municipal Operations

Falmouth submitted its Notice of Intent (NOI) to EPA and MassDEP in September 2018 to meet permit requirements which summarized Falmouth’s proposed SWMP to comply with the permit, which is detailed further in Falmouth’s written SWMP Plan originally prepared in June 2019 with updates ongoing. Falmouth submits Annual Reports to EPA and MassDEP by September 30th of each year summarizing the progress of its SWMP. The NOI and Annual reports are available on EPA’s website.

Click the links below to learn more about stormwater management in Falmouth.

Other Resources 

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