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Our work begins where rivers meet the sky and ends where groundwater feeds the soil. We use advocacy to protect it all.

This work is possible because of donations like you. Learn how you can join.

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The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We monitor trends so policy can shift.

• Real-time data networks of water quality shifts

Join thousands of water guardians fighting against pollution.

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'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my voice prevents extinction. Now I'm leading others.' — Michael O., Water Guardian

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across industries to solve problems at their source.