San Diego Watersheds

Watersheds are the ecosystems where we live. If we eliminated the country, state and city political labels, we would see our lives defined by the ecosystems that surround us and the habitats, wildlife and waters within them. Groundwater and surface waters like streams and rivers, and their end points at the ocean or in coastal lagoons, are the life blood for ecosytems. The water quality in them defines the flood control, habitat, wildlife and natural filtering resources and capabilities of a watershed. We have eleven watersheds in the county that drain toward the Pacific Ocean. Read more on these pages about the watershed that you live in.