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Water doesn't recognize borders — and neither do the threats it faces. Our regional teams work 24/7 to protect it.

This work is possible because of community members 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.

• Early warning systems of water quality shifts

Join thousands of environmental advocates organizing 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 data prevents contamination. Now I'm training others.' — David T., 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.