Learn about how water moves through your community and explore the adventurous, and sometimes dangerous, life of a raindrop.

We use water every day, but where does it come from? Water is a precious resource, one that we often take for granted. Did you know that 40 percent of the water that flows through our state ends up in the San Francisco Bay? All life depends on water. It’s our responsibility to make sure that we have enough water and that it’s clean.

Bay History & Geology

Watershed Science