Massachusetts Final General Surface Water Discharge Permits and Associated Documents

Listing of Final General Surface Water Discharge Permits in Massachusetts.

This page lists final Massachusetts General Surface Water Discharge Permits and associated documents in chronological order. These final permits are issued to align with the effective dates of EPA’s final NPDES permits. Please note that there may be a short lag time in posting final 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)

Final General Permits

Permit Name	Permit Number	Date of Issuance
Final MassDEP Dewatering and Remediation General Permit	MAG910000	8/2/2022
Final Medium Wastewater Treatment Facility General Permit	MAG590000	10/2/2022
Final MassDEP Water Quality Certification for the EPA Dewatering and Remediation General Permit	MAG910000	6/27/2022
Small Wastewater Treatment Facilities (WWTF) General Permit Modification	MAG580000	5/2/2023
Final Water Quality Certification for Massachusetts Pesticide General Permit (2026)	MAG870000	4/17/2024
Final Water Quality Certification for Massachusetts Pesticide General Permit (2021)	MAG870000	5/24/2021
Final MassDEP Potable Water Treatment Facility General Permit	MAG640000	9/29/2023
Final MassDEP Non-Contact Cooling Water General Permit	MAG250000	4/26/2024