Current Projects

CSO and SSO Notfications

Somerville Marginal

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!

Massachusetts Water Resources Authority
Charlestown Navy Yard, 100 First Avenue
Boston, Massachusetts 02129
(617) 242-6000
map courtesy

Wastewater COVID-19 Tracking

Updated: September 30, 2020


Your Drinking Water and COVID-19

March 12, 2020


map courtesy

MWRA Business Contacts During COVID-19

April 3, 2020

Important Notice

MWRA Staffing Schedule: Week of September 28 to October 2

Coronavirus Portal

MWRA COVID-19 Fillable Self Certification of Health (PDF)

MWRA COVID-19 Safety Protocol (PDF) - Updated 6/19/20

Help Prevent COVID-19 With Social Distancing (video)

Stop the Spread of Germs like Seasonal Flu and COVID-19 (video)

Related Press Releases:

Disposal of Stale Beer and Food Waste
COVID-19 Update for Building Managers
CoVid-19 and Wipes
MWRA 24-Hour
Emergency Contacts
Water: 617-305-5950
Sewer: 617-305-5940
Security: 877-697-6972
TTY: 617-371-1903
Sign Up For Notifications

Want to know how your water quality is? Looking for updates on the MWRA construction project in your neighborhood? What if there is a water emergency in your area? MWRA can keep you informed when you’re at home, at work or on the road. Take a few minutes to sign up and get notifications on your phone, by email, or text message.

Follow Us
twitter icon
Instagram badge
YouTube button
Board of Directors
Quabbin Reservoir webcam thumbnail image
Click on the picture for
a larger image in a new window
About Lead in
Drinking Water
How Much Water Is In Our Reservoirs?
quabbin reservoir image
How much we have
How much we use

Recent and Historic Data
Harbor and Bay Monitoring
crab on the bay floor
Facts about Fluoride


map courtesy

MWRA Maintenance Work Will Cause Temporary Interruption of Water Service in Parts of Chelsea

September 18, 2020

map courtesy

MWRA Work May Cause Discolored Water, Reduced Water Pressure in Parts of Newton

September 14, 2020

map courtesy

MWRA's September 16, 2020 Board of Directors Meeting to be Held Virtually

September 11, 2020

map courtesy

Status of MWRA Reservoirs

Updated August 15, 2020

map courtesy

Water Workers Are Essential - A NEWEA Video Tribute

July 28, 2020

map courtesy

MWRA's July 22, 2020 Board of Directors Meeting to be Held Virtually

July 17, 2020

map courtesy

MWRA to Pilot COVID Resurgence Study with Biobot

June 29, 2020

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

June 16, 2020

Swearing in photo

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

June 16, 2020

Project image

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

June 16, 2020

project photo

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

Updated February 27, 2020

project photo

EWG Report on Drinking Water

October 24, 2019

swearing in group

MWRA Water Again Named “New England’s Best,” Wins Taste Test at New England Water Works Association Conference

September 26, 2019


About PFASs in MWRA Drinking Water

Updated August 23, 2019

project photo

New Study Finds Boston Harbor Cleanup Was Worth It

December 17, 2018

document image

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

Boston Globe Soudtrack Image

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 Videos on Our YouTube Page

Water Reports

MWRA Annual Water Quality Report

2019 Annual Drinking Water Test Results


Monthly Drinking Water Quality Update


Monthly Community Water Use Report


Monthly Water Supply Status 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)

Annual Industrial Waste Report


CSO Post Construction Monitoring and
Performance Assessment Reports


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 FY 2021 Assessments to Communities (Rates)


Final FY20 Current Expense Budget (CEB)


Proposed FY21 Capital Improvement Program (CIP)


Information for Investors and Capital Finance Business Partners


MWRA Comprehensive Annual Financial Report
For the Fiscal Years Ended June 30, 2019 and 2018



Organization and Management Reports

Board of Directors Quarterly Report on Key Indicators of MWRA Performance


Master Plan



Court Report


PDF files on this site require Adobe Acrobat Reader®. Free download.
Videos require Apple Quicktime or Windows Media Player

Privacy Policy | Transparency | Public Records Requests

Go to Commonwealth of Massachusetts Website ( | Links