Urban Waters - The Mystic River Watershed

2023 Mystic River Report Card
- View 2023 report card.
Mystic Watershed Alternative TMDL Final Report

View the alternative TMDL report.
Hurd Field Porous Pavement Project

Learn about the pavement project which lets water infiltrate into the soil to filter pollutants.

The Mystic River Watershed is a collection of rivers, streams, lakes, and ponds that drain an area of approximately 76 square miles and 21 municipalities north of Boston. Since the early 1990's EPA and many public and private partners have worked to improve water quality throughout the watershed.