Welcome to the U.S. Geological Survey (USGS) San Diego Hydrogeology project website. This site provides hydrologic data collected or compiled by the USGS in the San Diego area; some additional data may be available from the USGS database National Water Information System (NWIS).
4165 Spruance Road, Suite 200
San Diego CA 92101-0812
619-222-2243 FAX: 619-225-6101
References to non-U.S. Department of the Interior (DOI) products do not constitute an endorsement by the DOI. By viewing the Google Maps API on this web site the user agrees to these Terms of Service set forth by Google.