Impact

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

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

Impact

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.

• Policy research driving stronger standards

Join thousands of environmental advocates fighting against pollution.

Impact

'Thirty years ago, this river was dying. Thanks to this organization, the ecosystem breathes again. I watch the difference daily.' — Dr. Robert L.

The science is clear: healthy water systems feed us, sustain us, and deserve our protection. We monitor trends so nature can recover.