Our Mission

Every watershed tells a story of crisis. We're here to ensure that story has a thriving future.

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

Our Mission

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

• Real-time data networks of water quality shifts

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

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 leading others.' — Sarah K., Water Guardian

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We predict risks so policy can shift.