Our Mission

Water doesn't recognize borders — and neither do the threats it faces. Our regional teams work year-round to defend it.

This work is possible because of volunteers like you. Your voice is essential.

Our Mission

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

• Early warning systems of water quality shifts

The water that flows through you connects you to 7 billion people — and future generations. Protect it with us.

Our Mission

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

Pollution doesn't stop at your neighbor's fence — and our solutions don't either. We work across industries to hold polluters accountable.