EPA's Permit for the Massachusetts Water Resources Authority (MWRA) Deer Island Treatment Plant Outfall and CSOs
On this page:
- Overview
- 2023 Draft Permit
- 2023 Fact Sheet
- 2023 Public Notice
- 2023 Public Comments Received
- 2023 Press Releases
- 2023 Draft Permit Public Information Sheet (in English, Spanish, Portuguese, Haitian Creole, Chinese, Vietnamese and Arabic)
- 1999 Final Permit (as modified in 2000)
Overview
2023 Draft Permit
- Draft Permit
- Draft Permit Attachments
- Attachment A (Authorized CSO Outfalls and Responsible Parties) (pdf)
- Attachment B (MWRA Member Communities named as Co-permittees) (pdf)
- Attachment C (Marine Acute Toxicity Test Procedure and Protocol, July 2012) (pdf)
- Attachment D (Marine Chronic Toxicity Test Procedure and Protocol, November 2013) (pdf)
- Attachment E (Freshwater Acute Toxicity Test Procedure and Protocol, February 2011) (pdf)
- Attachment F (Reassessment of Technically Based Industrial Discharge Limits) (pdf)
- Attachment G (NPDES Permit Requirement for Industrial Pretreatment Program Annual Report) (pdf)
- Attachment H (PFAS Analyte List) (pdf)
- Attachment I (MWRA Authorized Typical Year CSO Discharge Activation and Volume) (pdf)
- Attachment J (Charles River Basin CSO Variance Determination, August 2019) (pdf)
- Attachment K (Alewife Brook/Upper Mystic River Basin CSO Variance Determination, August 2019) (pdf)
2023 Fact Sheet
- Fact sheet (pdf)
- Fact Sheet Appendices
- Appendix A - MWRA Member Communities named as Co-permittees (pdf)
- Appendix B - Authorized CSO Outfalls and Responsible Party (pdf)
- Appendix C - Deer Island Treatment Plant Effluent Data Summary (pdf)
- Appendix D - Permitting Approach for POTWs with Co-permittees (pdf)
- Appendix E - Ambient Data Summary (pdf)
- Appendix F - Additional MWRA Data, Effluent Pollutant Data (pdf)
- Appendix G - Reasonable Potential and Limits Calculations (pdf)
- Appendix H - CSO Treatment Facility Effluent Data Summary (pdf)
- Appendix I - Summary of CSO Activations and Volumes (pdf)
2023 Public Notice
- 2023 Public Notice (pdf)
- August 7, 2023 Public Notice Extension (pdf)
- June 6, 2023 Public Notice Extension (pdf)
- July 12, 2023 Virtual Public Meeting and Public Hearing
- Slide deck for Public Meeting on July 12, 2023 (pdf)
2023 Public Comments Received
- July 12, 2023 - Transcript of Public Hearing including comments from Kristin Anderson, Susan Herman, Alyson Dossett and Cate Fox (pdf)
- August 12, 2023 - Save the Alewife Brook Petition Email (numerous copies received) (pdf)
- August 27, 2023 - Michael DelNegro (pdf)
- August 29, 2023 - Barbara Passero (pdf)
- November 8, 2023 - Doris Cellarius (pdf)
- November 9, 2023 - Massachusetts Rivers Alliance (pdf)
- November 20, 2023 - Stephen Perkins (pdf)
- November 20, 2023 - Brewster Board of Health (pdf)
- November 20, 2023 - Wastewater Advisory Committee to the MWRA (pdf)
- November 22, 2023 - Chris Powicki, Cape Cod & Islands Group of the Sierra Club (pdf)
- November 22, 2023 - David Stoff (pdf)
- November 26, 2023 - Patrick Herron, Mystic River Watershed Association (pdf)
- November 27, 2023 - Town of Burlington (pdf)
- November 27, 2023 - Judith Pederson, OMSAP (pdf)
- November 27, 2023 - Town of Lexington (pdf)
- November 28, 2023 - Town of Braintree (pdf)
- November 28, 2023 - City of Medford (pdf)
- November 28, 2023 - Greater Lawrence Sanitary District (pdf)
- November 28, 2023 - Upper Blackstone Clean Water (pdf)
- November 28, 2023 - Town of Needham (pdf)
- November 28, 2023 - City of Somerville (pdf)
- November 28, 2023 - Bruce Berman, Chair, Public Interest Advisory Committee (pdf)
- November 28, 2023 - Massachusetts Water Resources Authority (pdf)
- November 28, 2023 - MWRA Advisory Board (pdf)
- November 28, 2023 - Brewster Natural Resources Advisory Commission (pdf)
- November 28, 2023 - City of Cambridge (pdf)
- November 28, 2023 - City of Newton (pdf)
- November 28, 2023 - MA Coalition for Water Resources Stewardship (pdf)
- November 28, 2023 - City of Melrose (pdf)
- November 28, 2023 - Boston Water and Sewer Commission (pdf)
- November 28, 2023 - Town of Wellesley (pdf)
- November 28, 2023 - City of Haverhill (pdf)
- November 28, 2023 - Gwendolyn Speeth (pdf)
- November 28, 2023 - Conservation Law Foundation (pdf)
- November 28, 2023 - Just Zero, et. al. (pdf)
- November 28, 2023 - Lowell Regional Wastewater Utility (pdf)
- November 28, 2023 - City of Chelsea (pdf)
- November 28, 2023 - Daniel L. Codiga, PhD (pdf)
- November 28, 2023 - Eugene B. Benson (pdf)
- November 28, 2023 - Save Alewife Brook (pdf)
- November 28, 2023 - Charles River Watershed Association (pdf)
- November 28, 2023 - Center for Coastal Studies (pdf)
- November 28, 2023 - Massachusetts Division of Marine Fisheries (pdf)
- November 28, 2023 - National Association of Clean Water Agencies (NACWA) (pdf)
- November 28, 2023 - Town of Milton (pdf)
- November 28, 2023 - Save the Harbor/Save the Bay (pdf)
- November 28, 2023 - Town of Arlington (pdf)
- November 28, 2023 – Cape Cod Commission (pdf)
2023 Press Releases
2023 Draft Permit Public Information Sheet
- English (pdf)
- Spanish (pdf)
- Portuguese (pdf)
- Haitian Creole (pdf)
- Chinese (pdf)
- Vietnamese (pdf)
- Arabic (pdf)
1999 Final Permit (as modified in 2000)
- 2000 Final Permit (pdf)
- Response to Comments (pdf)
- Permit Attachments
- A: Off-Shore Discharge Tunnel Outfall (pdf)
- B: Combined Sewer Overflow Discharge Outfalls (pdf)
- C: Flow Schematic (pdf) Reprint from Boston Globe
- D: Communities within the MWRA Conveyance System (pdf)
- E: Marine Acute Toxicity Test Procedure and Protocol (pdf)
- F: Marine Chronic Toxicity Test Procedure and Protocol (pdf)
- G: Industrial Pretreatment Program Annual Report (pdf)
- H: Total Residual Chlorine Discharge Limit Calculation (pdf)
- I: Sludge Applier's Responsibilities (pdf)
- J: Pathogens (pdf)
- K: Vector Attraction Reduction (pdf)
- L: Sampling and Analysis (pdf)
- M: Nine Minimum Controls Documentation and Implementation Guidance (pdf)
- N: Ambient Monitoring Plan (pdf)
- O: Contingency Plan (pdf)
- P: Pollution Prevention (pdf)
- Q: Marine Acute Toxicity Test Procedure and Protocol (pdf)
- R: Fresh Water Acute Toxicity Test Procedure and Protocol (pdf)
- S: Sample Calculations (pdf)
- T: Outfall Monitoring Science Advisory Panel Charter (pdf)
- U: Total Residual Chlorine Limit Sample Calculation - for Combined Sewer Overflows (pdf)
- V: Agreement of NMFS, EPA, and MWRA Concerning Implementation of Conservation Recommendations (pdf)
- Outfall Monitoring Science Advisory Panel (OMSAP) Web Page
You may contact:
Michele Cobban Barden (barden.michele@epa.gov)
Environmental Scientist
EPA Region 1
5 Post Office Square, Suite 100 (Mail Code 06-1)
Boston, MA 02109-3912
617-918-1539