The Charles River, despite past improvements, has stalled in its progress toward becoming consistently swimmable. Polluted ...

Will Spangenberg, 26, has more love for the Charles, which flows through his hometown of Dover. Now a Beacon Hill resident, he visits the river three or four times a week to sail, paddle board, or ...

The Charles River Watershed Association said it marks the river’s first significant bloom in four years. Cyanobacteria, also known as blue-green algae, are naturally occurring microorganisms ...

Forty years after the cleanup of the Charles River began, we still cannot safely swim in its waters. This is a big deal, because stormwater is the main source of pollution degrading water quality ...

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According to the Charles River Watershed Association, The main option presented by Somerville, Cambridge, and the MWRA was a CSO storage tunnel, similar to one in South Boston that first opened in ...