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Massachusetts Draft General Surface Water Permits and Associated Documents

Listing of Draft General Surface Water Discharge Permits in Massachusetts.

This page lists draft Massachusetts General Surface Water Discharge Permits in alphabetical order. These draft permits go on public notice concurrently with EPA’s draft NPDES permits. Please note that there may be a short lag time in posting draft permits here.

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Abbreviations:
POTW = Publicly Owned Treatment Works
WPCA(D/F/P) = Water Pollution Control Authority (Division/Facility/Plant)
WQC = Water Quality Certification
WTF(P) = Water Treatment Facility (Plant)
WWTF(P) = Wastewater Treatment Facility (Plant)

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Draft General Permits

Permit NamePermit NumberComment Period Dates
Draft 401 Water Quality Certification for the 2024 Draft Private Commercial, Industrial and Institutional Stormwater Discharges in the Charles, Mystic, and Neponset River Watersheds (CII) General PermitMAG8600005/1/25 - 6/1/2025
Draft Massachusetts MS4 General PermitMAR041000, MAR042000, MAR04300012/20/24 - 2/20/2025 (extended to 5/21/25)
Draft Wastewater Treatment Facilities (WWTF) General PermitMAG5800004/12/2021 - 5/13/2021
Draft Water Quality Certification for Proposed 2026 Pesticide General PermitMAG8700003/8/2024 - 4/7/2024
Draft MassDEP Non-Contact Cooling Water General Permit and Draft Water Quality Certification PermitMAG2500009/26/2023 - 11/28/2023

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