The Three Rivers Report Card Grades are in! This year, water quality in the Charles River stalls, while the Mystic and Neponset Rivers decline slightly.

On April 30th, the MWRA and the Cities of Cambridge and Somerville submitted their draft CSO Long Term Control Plan to Mass DEP and US EPA and for public comment.

Mystic River Watershed Association, in partnership with the Museum of Science, was selected as a recipient of the 2026 Boston Climate Leader Awards

Warmer weather is coming, which means big things are brewing along the Mystic Greenways!

$500 million dollars for the Municipal Vulnerability Preparedness grant program included in the Senate version of the Mass Ready Act

Together our actions can make a powerful difference towards a more vibrant, healthy, and resilient watershed. Explore the many fun and impactful actions you can take around the watershed this month!

MyRWA fellow, Grace Gallagher, reflects on the rainy month of April that promises a beautiful Spring.

The decision supports the development of world-class, climate-resilient open spaces to buffer Boston's commercial ports and residential areas.

Introducing Holly Cariddi, the Mystic River Watershed Association’s new Development Director!

On March 2nd, 2026 we submitted a letter raising concerns about a proposed data center in the Everett Docklands Innovation District

A major milestone in effort to restore access to breeding habitat for river herring at Woburn’s Horn Pond

What is herring monitoring? How do I sign up? When are the training sessions? Answers to these questions and more here!