Who We Are

Water doesn't recognize borders — and neither do the threats it faces. Our local teams work 24/7 to defend it.

This work is possible because of scientists like you. Together we can turn the tide.

Who We Are

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

• Long-term scientific monitoring of water quality shifts

Join thousands of environmental advocates pushing back for change.

Who We Are

'I used to think my voice didn't matter. Then I joined a citizen monitoring program and realized — my action prevents contamination. Now I'm training others.' — Michael O., Community Monitor

We believe that nature can heal if we restore what was lost. Our 20-year track record shows what's possible.