Support Us

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. Learn how you can join.

Support Us

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

• Invasive management to revive ecosystems

Join thousands of environmental advocates fighting for change.

Support Us

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my voice prevents contamination. Now I'm inspiring others.' — Sarah K., Watershed Advocate

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