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About MWRA
Massachusetts Water Resources Authority

MWRA is a Massachusetts public authority established by an act of the Legislature in 1984 to provide wholesale water and sewer services to 3.1 million people and more than 5,500 large industrial users in 61 metropolitan Boston communities. MWRA Profile (PDF)


Water (617) 305- 5950 | Sewer (617) 305-5940 | Security (877) 697-6972

sevice area map updated March 29 2023

General Information
Enabling Act
Our Mission, Legal Status and Accountability
Board of Directors
Customer Communities
Governance, Organization & Management
Public Records Requests
Business Plan (PDF)
Master Plan
How MWRA is Preparing for Climate Change
Environmental Justice
MWRA Retirement Board (outside link)
Finances and Community Charges
Finances and Community Charges
Public Access
Deer Island Public Access Area
Policies and Regulations
MWRA Expansion Policies
MWRA Sewer Use Regulations
Toxic Reduction and Control (TRAC) Department
Advisory Groups
Advisory Board
Water Supply Citizens Advisory Committee
Wastewater Advisory Committee
Federal Oversight
Boston Harbor Case Court Report
Your Local Water/Sewer Department
Links to your city or town's water/sewer department


MWRA Profile (PDF)

3.1 million people served

890,000 households served

5,500 businesses served

200 million gallons per day of water supplied (average)

350 million gallons per day of sewage treated (average)

45 sewerage communities

53 water communities

61 communities collectively

Services provided by MWRA
Arlington Water and Sewer
Ashland Water (partially supplied), Sewer
Bedford Water (partially supplied), Sewer
Belmont Water and Sewer
Boston Water and Sewer
Braintree Sewer
Brookline Water and Sewer
Burlington Water (partially supplied), Sewer
Cambridge Water (emergency backup only), Sewer
Canton Water (partially supplied), Sewer
Chelsea Water and Sewer
Chicopee Water
Clinton Water and Sewer
Dedham Water (partially supplied), Sewer
Everett Water and Sewer
Framingham Water and Sewer
Hingham Sewer
Holbrook Sewer
Lancaster Sewer
Leominster Water (emergency back-up only)
Lexington Water and Sewer
Lynn (GE only) Water (partially supplied)
Lynnfield Water District Water
Malden Water and Sewer
Marblehead Water
Marlborough Water
Medford Water and Sewer
Melrose Water and Sewer
Milton Water and Sewer
Nahant Water
Natick Sewer
Needham Sewer, Water (partially supplied)


Water and Sewer
Northborough Water
Norwood Water and Sewer
Peabody Water (partially supplied)
Quincy Water and Sewer
Randolph Sewer
Reading Water and Sewer
Revere Water and Sewer
Saugus Water
Somerville Water and Sewer
Southborough Water
South Hadley Fire District #1 Water
Stoneham Water and Sewer
Stoughton Sewer, Water (partially supplied)
Swampscott Water
Wakefield Sewer, Water (partially supplied)
Walpole Sewer
Waltham Water and Sewer
Watertown Water and Sewer
Wellesley Sewer, Water (partially supplied)
Weston Water
Westwood Sewer, Water (partially supplied)
Weymouth Sewer
Wilbraham Water
Wilmington Sewer, Water (partially supplied)
Winchester Sewer, Water (partially supplied)
Winthrop Water and Sewer
Woburn Water (partially supplied), Sewer
Worcester Water (emergency back-up only)
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Contact Sean Navin, Director of Intergovernmental Affairs: (617) 788-1177 if you have any questions or concerns about an MWRA project in your city or town

Arlington, Ashland, Barre*, Bedford, Belchertown*, Belmont, Berlin*, Boston, Braintree, Brookline, Burlington, Cambridge, Canton, Chelsea, Chicopee, Clinton, Dedham, Everett, Framingham, Hingham, Holbrook, Holden S.D.**, Lancaster, Leominster, Lexington, Ludlow*, Lynn, Lynnfield, Malden, Marblehead, Marlborough, Medford, Melrose, Milton, Nahant, Natick, Needham, Newton, Northborough, Norwood, Peabody, Quincy, Randolph, Reading, Revere, Saugus, Rutland**, Somerville, South Hadley FD 1, Southborough, Stoneham, Stoughton, Swampscott, Waltham, Wakefield, Walpole, Watertown, Ware*, Wellesley, Westwood, Weymouth, Wilmington, Wilbraham, Winchester, Winthrop, Worcester, Woburn

* project host community that is not served by MWRA
(1) special projects.

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Updated May 16, 2024