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

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

Get Involved

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.

• Invasive management to prevent extinction

Join thousands of environmental advocates fighting for change.

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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 inspiring others.' — Jennifer M., Community Monitor

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We propose solutions so communities can act.