Wastewater Treatment Plant Operations

Information and tools for wastewater treatment plant operators.

Wastewater treatment plants range from small privately-owned facilities treating sanitary wastewater from a housing development to large regional facilities treating millions of gallons a day of sanitary and industrial wastewater. Plants owned by municipalities are commonly called Publicly-Owned Treatment Plants, or POTWs. In cooperation with local and federal authorities, MassDEP regulates many types of wastewater treatment plants.

Table of Contents

Lists of treatment plants by town and type

Gap III Energy Grant

The Massachusetts Gap Energy Grant Program provides state grant assistance to Municipal and District drinking water and wastewater treatment facilities for installing energy efficiency measures (e.g., variable speed drives; pumping, aeration, and HVAC upgrades etc.) and clean energy generation projects (solar photovoltaic, in-line hydropower, water source heat pumps etc.) at their plants and pumping stations.

MassDEP anticipates releasing our $5 Million Gap Energy Grant Program procurement documents on COMMBUYS in the near future.

To view our previous Gap grant awards and project information, please visit our story map here:
Massachusetts Gap Energy Grant Program.

Additional Resources

Regulations for Wastewater Treatment Plants and Operators

Tools & Resources for Treatment Plant Owners and Operators

Applications and Forms for Certified Wastewater Treatment Plant Operators

See also "Training Information" below.

Additional Resources

Training Information for Treatment Plants and Operators

New England Interstate Water Pollution Control Commission (NEIWPCC)

NEIWPCC provides training and certification exams for Massachusetts Wastewater Operators.


NEIWPCC wastewater training calendar


2022/2023 Massachusetts Wastewater Management Training Program


US Environmental Protection Agency (US EPA)

US EPA offers training on the Enforcement and Compliance History Online (ECHO) system for tracking facility compliance with environmental regulations. Upcoming and previously recorded webinars are available at this link:


Additional Resources



Boston Office 617-292-5867

John Murphy

Northeast Regional Office Contact 978-694-3236

Kevin Brander

Southeast Regional Office 508-946-2757

Jeff Gould

Central Regional Office 508-767-2823

Dave Boyer

Western Regional Office 413-755-2218
New England Interstate Water Pollution Control Commission 978-323-7929