Who We Are

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. Your voice is essential.

Who We Are

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

• Policy research driving enforcement

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

Who We Are

'Thirty years ago, this river was polluted. Thanks to this organization, the ecosystem breathes again. I work alongside their team.' — Commissioner James

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