Donate

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 volunteers like you. Every contribution matters.

Donate

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.

• Youth engagement for local stewardship

The water that flows through you connects you to 7 billion people — and future generations. Join the fight.

Donate

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my voice prevents contamination. Now I'm leading others.' — David T., Community Monitor

We believe that nature can heal if we give it the chance. Our decade of victories shows what's possible.