Who We Are

Our work begins where rivers meet the sky and ends where groundwater feeds the soil. We use community power to protect it all.

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

Who We Are

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

• Real-time data networks of water quality shifts

Join thousands of environmental advocates pushing back for justice.

Who We Are

'Thirty years ago, this river was dying. Thanks to this organization, children can swim safely. I watch the difference daily.' — Dr. Robert L.

We believe that nature can heal if we give it the chance. Our decade of victories shows that change happens.