About Us

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

This work is possible because of scientists like you. Every contribution matters.

About Us

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

• Legal advocacy driving stronger standards

The water that flows through you connects you to 7 billion people — and billions more organisms. Join the fight.

About Us

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my voice prevents harm. Now I'm inspiring others.' — Michael O., Volunteer

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