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CSO and SSO Notifications

Climate Change
Renewable Energy
CSO Control

Aqueduct Trails

Natick Trail

About the Aqueduct Trails
What Not to Flush
Toilet lever what not to flush

It's a toilet, not a trash can!

Annual Poster and Writing Contest for 2018-2019

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Winners Announced!

Massachusetts Water Resources Authority
Charlestown Navy Yard, 100 First Avenue
Boston, Massachusetts 02129
(617) 242-6000
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Your MWRA Water Report for 2018 is in the Mail

June 11, 2019

Important Notice


No notices at this time.

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Sewer: 617-305-5940
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TTY: 617-371-1903
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About Lead in
Drinking Water
How Much Water Is In Our Reservoirs?
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How much we have
How much we use

Recent and Historic Data
Harbor and Bay Monitoring
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Facts about Fluoride


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Water Connection Work in Newton to Begin September 16

September 11, 2019

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Special Notice:
Metallic-Tasting Algae in Reservoirs

September 4, 2019


About PFASs in MWRA Drinking Water

Updated August 23, 2019

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Project Update for the Massachusetts Department of Fish and Game Public Access Fishing Pier at Deer Island

August 21, 2019

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New Traffic Plan for South Street, Stoneham
for MWRA Water Main Installation

August 16, 2019

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Update on the Alewife Brook Pump Station Rehabilitation Project (MWRA Contract 6797)

Updated August 7, 2019

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Update for MWRA Northern Intermediate High Project in Stoneham (MWRA Contract 7067)

Updated August 7, 2019

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Update for MWRA Southern Extra High Pipeline Project, Dedham North (MWRA Contracts 7504/7505)

Updated August 7, 2019

Map of Revere courtesy cc license

UPDATE: MWRA Work May Cause Discolored Water/Pressure Loss in Prospect Hill Area of Revere - Work Postponed

July 30, 2019

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Update on Commonwealth Avenue Pumping Station Improvements: (MWRA Contract 7524)

Updated June 28, 2019

Mystic River Report Card

EPA Releases Mystic River Report Card for 2018 (via US EPA)

June 28, 2019

Map courtesy, creative commons license.

MWRA Board Approves FY 2020 Current Expense Budget and Community Water and Sewer Assessments (Rates)

June 19, 2019

Map courtesy, creative commons license.

MWRA Maintenance May Cause Discolored Water in Winchester

June 17, 2019

Charles River PhotoCreative Commons License

EPA Releases Charles River Report Card for 2018 (via US EPA)

June 12, 2019

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Governor Baker Swears in Two Members of the MWRA Board of Directors

Updated June 5, 2019

map courtesy creative common license

MWRA Water Valve Maintenance May Affect Traffic in Waltham

May 29, 2019


MWRA Asks Residents: Please Don't Swim in the Fells

May 23, 2019

DEP award

MWRA Receives Public Water System Award from Mass DEP

May 15, 2019

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Notice of Upcoming Work and Public Meeting in Newton

May 8, 2019


Combined Sewer Overflow Control
Public Briefing on the Progress of MWRA’s CSO Post-Construction Monitoring and Performance Assessment

May 1, 2019

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Public Hearing on Proposed Amendments To TRAC Regulations

April 18, 2019

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Joint Public Notice: Alewife Brook Combined Sewer Overflow Control Progress Update

April 12, 2019

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MWRA and Town Work May Cause Discolored Water in Parts of Stoneham and Wakefield

Updated April 8, 2019

Winchester map courtesy, Creative Commons license

MWRA Water Meter 130 Construction May Affect Traffic in Winchester

April 2, 2019

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MWRA Featured on WCVB's Chronicle

Learning from the past and preparing for future water needs

March 27, 2019

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New Study Finds Boston Harbor Cleanup Was Worth It

December 17, 2018

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Another Milestone for the Boston Harbor Cleanup - Woods Hole Report on Flounder

November 29, 2018

News Release Archive Page


Boston's Water Wins Tap vs. Bottled Taste Test
at Old Colony Housing Development

(Boston Public Health Commission YouTube Video)
Updated September 22, 2015

SCATV Video Screen Shot

Mystic River Watershed Association Fighting Back Against Water Chestnut Invasion (via SCATV)

July 29, 2014

screen shot boston globe water video

Well vs. MWRA Water Taste Test

July 22, 2013

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Boston Globe Magazine's Soundtrack video captures the "hypnotic sight and sound" of MWRA's Charlestown Wind Turbine

March 18, 2013

Power of Windmills Courtesy The Travel Channel

The Power of Windmills: Deer Island windmill featured in the Travel Channel's "Off Limits" clip

October 17, 2011

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NECN Presents Underneath it All:
Inside Boston's Sewer System

October 17, 2011

More Video on Our YouTube Page

Water Reports

MWRA Annual Water Quality Report

2018 Annual Drinking Water Test Results


Monthly Water Supply Status Update


Monthly Community Water Use Report


Monthly Drinking Water Quality Update


Report on Quabbin Pilot Program (PDF)



Sewer Reports

MWRA Every Drop Counts

How Clean is Boston Harbor?

April 23, 2018

A Healthy Environment Starts at Home cover

A Healthy Environment Starts at Home

Our free guide to reducing the use of hazardous household products (PDF)

CSO Post Construction Monitoring and
Performance Assessment Reports


Annual Industrial Waste Report


How Clean is Boston Harbor? MWRA Sewer Report


CSO Discharge Estimates and Rainfall Analyses


CSO Water Quality Report (PDF)


Annual CSO Control Plan Progress Report


Annual Infiltration/Inflow Report (PDF)



Harbor, Bay and NPDES Reports

State of Boston Harbor Report


Financial Reports

Final FY20 Current Expense Budget (CEB)


Final FY20 Captial Improvement Program (CIP)


MWRA Comprehensive Annual Financial Report
For the Fiscal Years Ended June 30, 2018 and 2017


Information for Investors and Capital Finance Business Partners


Final FY 2020 Assessments to Communities (Rates)



Organization and Management Reports

Board of Directors Quarterly Report on Key Indicators of MWRA Performance


Master Plan



Court Report


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