Tracking Bacteria Pollution in the Lower Concord River

Over the last four years, OARS’ program to monitor E. coli, a fecal indicator bacteria, has consistently shown higher than acceptable levels in the Concord River at the Roger's Street bridge in Lowell. In 2020 we conducted a study that identified River Meadow Brook as the likely source of this bacterial pollution. Between 2020 and 2022, with funding support from the Greater Lowell Community Foundation, we have been intensively studying River Meadow Brook to track down the sources of the bacterial pollution.

Seeking Board of Directors Members

OARS is seeking dynamic and engaged Board Members, particularly those reflecting the diversity of our communities. If you have a passion for making a difference locally, this is your opportunity!

OARS' Board of Directors governs, oversees policy and direction, advises, and assists with the leadership and general promotion of OARS in order to support the organization’s mission and needs.

About us: OARS is the watershed organization for the Sudbury, Assabet, and Concord Rivers. The watershed lies about 20 miles west of Boston, stretches from Lowell to Hopkinton, Berlin to Wayland and includes 29 miles with the Federal designation of "Wild & Scenic Rivers."

River Recreation Maps & Kayaking Tips

Check out the special beauty seasonal changes bring to our rivers!

For trips and ideas, go to our online Assabet, Sudbury, and Concord River recreation maps! You will find detailed information on river access points, walking trails, and bike paths.

To request a printed map (specify which river) and receive email updates: email OARS.

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