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CSO and SSO Notifications

Annual Poster and Writing Contest for 2018-2019

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Renewable Energy
CSO Control
What Not to Flush
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It's a toilet, not a trash can!

Massachusetts Water Resources Authority
Charlestown Navy Yard, 100 First Avenue
Boston, Massachusetts 02129
(617) 242-6000
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Your Annual Drinking Water Report is In the Mail

June 6, 2018

Important Notice


No notices at this time.


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About Lead in
Drinking Water
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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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El informe anual sobre la calidad del agua del MWRA está en el correo

July 10, 2018

MWRA Every Drop Counts

How Clean is Boston Harbor?

April 23, 2018

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MWRA Board Approves $100 Million in Funding to Remove Lead Service Lines

Facts about Lead in Drinking Water

How to Get Your Water Tested

For Local Water Service Providers: Lead Loan Program (LLP)


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Update on Northern Intermediate High Project in Stoneham and Wakefield (MWRA Contract 7478)

November 1, 2018

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

December 1, 2018

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

December 1, 2018

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

December 1, 2018

Vial Door Hanger

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

November 29, 2018

Vial Door Hanger

PFASs Not Found in MWRA Drinking Water

Updated November 28, 2018

Vial Door Hanger

"Vial" Door Hangers Not from MWRA or Your Local Water Department

November 15, 2018

map courtesy, creative commons license

MWRA Work May Cause Discolored Water in Parts of Revere

November 14, 2018

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MWRA Work May Cause Discolored Water in Parts of Milton

November 14, 2018

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Update for Update for MWRA Reading Extension Sewer Rehabitation
(MWRA Contract 7164)

November 1, 2018

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MWRA Work May Cause Discolored Water Near Tufts Square, Medford

November 1, 2018

Pine Tree Preserve Rendering

Update on the Pine Tree Preserve Trail Project, Chestnut Hill

August 22, 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

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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

mwra manhole cover

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

2017 Annual Drinking Water Test Results


Monthly Water Supply Status Update


Monthly Drinking Water Quality Update


Monthly Community Water Use Report


Report on Quabbin Pilot Program (PDF)



Sewer Reports

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A Healthy Environment Starts at Home

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

Annual Industrial Waste Report


How Clean is Boston Harbor? MWRA Sewer Report


CSO Discharge Estimates and Rainfall Analyses


Annual CSO Control Plan Progress Report


Annual Infiltration/Inflow Report (PDF)



Harbor, Bay and NPDES Reports

State of Boston Harbor Report


Financial Reports

Information for Investors and Capital Finance Business Partners


Final FY19 Current Expense Budget (CEB)


Final FY19 Captial Improvement Program (CIP)


Final FY18 Assessments to Communities (Rates)



Organization and Management Reports

Board of Directors Quarterly Report on Key Indicators of MWRA Performance



Court Report


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