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Wastewater Treatment Plants

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

Additional Resources

Tools & Resources for Treatment Plant Owners and Operators

Training Information for Treatment Plants and Operators

Training from the US Environmental Protection Agency

EPA and  Massachusetts Water and Energy Utility Resilience Virtual Workshop
Pathway to Resiliency: Preparation, Energy Efficiency, and Renewable Power
October 26, 27, and 28, 9 am – 12 pm ET

The U.S. Environmental Protection Agency (EPA) and the Massachusetts Department of Environmental Protection (DEP) are partnering to offer drinking water and wastewater utilities the opportunity to learn more about becoming less reliant on the electrical grid. Please join EPA and DEP to learn about tools and funding to increase power resilience and to hear from utilities that have successfully reduced their reliance on the grid and more resilient during grid power outages. The no cost, virtual workshop, scheduled as three separate sessions, will kickoff with a tabletop exercise designed to encourage participants to discuss how they would respond to a widespread power outage lasting at least two weeks.

EPA/MassDEP Water and Energy Utility Resilience Virtual Workshop - Flyer

EPA/MassDEP Water and Energy Utility Resilience Virtual Workshop - Agenda

Register for Session 1 on October 26 (Table Top Exercise):

Register for Sessions 2 and 3 on October 27 and 28:


Training for Massachusetts Wastewater Operators (provided by NEIWPCC)



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