Water quality grades are in for Boston-area rivers: How did the

The annual water quality grades for the three rivers that flow into Boston Harbor -- the Charles, Mystic and Neponset rivers -- were released on Thursday, revealing a mix of progress and sliding scores across the region.

Boston Rivers Were Pretty Clean In 2020, But Sewage Is Still A Problem Says EPA

EPA report card gives mixed grades for Charles, Mystic and Neponset watersheds

Water quality grades are in for Boston-area rivers: How did the Charles, Mystic and Neponset score?

Mystic River Watershed Report Cards

U.S. Senator Ed Markey, EPA, State, and Watershed Associations to Announce Annual Water Quality Report Cards for Three Boston Rivers (PRESS RELEASE) — Charles River Watershed Association

Water quality assessment and pollution source apportionment in a highly regulated river of Northeast China

The grades are in–see how water quality fared in your favorite section of the Charles River! — Charles River Watershed Association

Water Quality Grade EPA — Mystic River Watershed Association

PRESS — Charles River Watershed Association

2021 Charles River Report Card