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

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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.

Water quality in Boston's rivers was mostly good in 2021. But sewage and climate change threats remain

2022 Charles River Report Card

Announcing the 2022 Three Rivers Report Cards — Mystic River Watershed Association

Sun, 24 Mar 2024 13:13:08 GMT

Wastewater input reductions reverse historic hypereutrophication of Boston Harbor, USA

Wastewater input reductions reverse historic hypereutrophication of Boston Harbor, USA

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

From the Community to the EPA: Boston Area River Report Cards - Urban Waters Learning Network

Environmental Protection Agency – Boston Herald

Boston-area water quality report cards show widespread improvement, but still range from A to F - The Boston Globe

Mystic River Receives A- Water Quality Grade — Mystic River Watershed Association

Sun, 24 Mar 2024 13:13:08 GMT

Water quality in Boston's rivers was mostly good in 2021. But sewage and climate change threats remain

Testing the Quality of the Charles River Water - Northeastern University College of Engineering

Westwood's Purgatory Brook is Now Boatable but Water Quality Falls for Other Local Brooks in EPA's Water Quality Scorecard