How Healthy is Your Water?

East River Snapshot

72
out of 100
Bay Health Index (5-year average)
poor
fair
good
72
72
out of 100

Supporting Data

East River: Stonebridge Marina (ER1)
Nitrogen, dissolved oxygen, algae, and water clarity measurements taken from floating dock at Stonebridge Marina. (41.742743, -70.6539)
Total Nitrogen
Dissolved Inorganic Nitrogen
Total Organic Nitrogen
Dissolved Oxygen
All Measurements
Average of Lowest 20%
Algal Pigments
Total Pigments
Water Clarity
Yearly Average
Bay Health data is funded in part by the Massachusetts Environmental Trust.
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Volunteer

Become a Baywatcher

Help the Buzzards Bay Coalition keep an eye on the health of the water in your community. Become a Baywatcher, and you can volunteer as a "citizen scientist" on the water this summer.

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Top Stories on Onset Bay

10 beautiful beaches on Buzzards Bay to visit this summer

Some of these Buzzards Bay beaches are crowd favorites, while others are hidden gems waiting for you to discover.

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Coalition members share 14 of their favorite places on Buzzards Bay

To kick off summer, our members shared 14 of their favorite places: harbors, beaches, trails, and all the other fantastic spots where people like you can discover Buzzards Bay summer long.

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Officials and community celebrate long-awaited ribbon-cutting of the Coalition’s Onset Bay Center

Officials and community celebrate long-awaited ribbon-cutting of the Coalition’s Onset Bay Center.

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Working to Save Buzzards Bay

The Buzzards Bay Coalition is a membership-supported organization dedicated to improving the health of the Buzzards Bay ecosystem for all through education, conservation, research, and advocacy.

We work to protect clean water on the Bay and on the land: