A watershed is an area that drains water into a creek, river, lake, wetland, bay, or groundwater aquifer. In the Santa Clara Valley, all the water from rain and irrigation that flows over land (called runoff) goes into storm drains, creeks and rivers that flow directly to San Francisco Bay. You live in a watershed, too. All the runoff from your home, yard, and neighborhood flows to a local creek and ultimately to the Bay.
Why are Watersheds Important?
Watersheds are more than just drainage areas in and around our communities. They are necessary to support habitat for plants and animals, and they provide drinking water for people and wildlife. They also provide the opportunity for recreation and enjoyment of nature. Protection of the natural resources in our watershed is essential to maintain the health and wellbeing of all living things, now and in the future.