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Healthy Waters

Long Island Sound is the ecological and cultural heart of our region—a livelihood for fishermen and oyster farmers, rich nursery for fish and birds, inspiration for artists, and source of joy for generations of families who splash on its shores and sail its open waters.

But it’s also vulnerable to pollution, habitat loss, and the effects of climate change. That’s where Save the Sound comes in.

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How Healthy is Long Island Sound?

Have questions about Long Island Sound’s ecological health and the safety of its beaches?

Save the Sound collects, compiles and visualizes water quality data in many ways to help the public and legislators understand exactly what’s happening in the Sound’s waters.

Explore the Reports & Grades

Measuring Water Quality

It’s hard to heal the Sound until we know exactly what’s harming it. Measuring water quality is a powerful tool for making pollution visible.

Armed with reliable, current, and targeted data, Save the Sound identifies and tackles our local water quality issues.

Learn how we measure water quality


Get Involved
Jump in

Join the fight! Memberships start at just $25 – support that’s badly needed now for a healthy, sustainable environment over the long term.

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Take part

Earth Month
Celebrate throughout the month of April by volunteering at cleanups, learning about climate action, and connecting with your community to protect our region’s environment.

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Stay in touch by joining our activist network email list. We'll keep you up-to-date with current initiatives, ways you can take action and volunteer opportunities.

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