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

This work is possible because of community members like you. Together we can turn the tide.

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Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across industries to rebuild what was lost.

• Long-term scientific monitoring of water quality shifts

Join thousands of environmental advocates fighting for justice.

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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 crisis. Now I'm leading others.' — David T., Community Monitor

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.