San Diego Hydrogeology

Statistics as of March 2010

Area

• Total study area: 1386 square miles
• Offshore area: 184 square miles

USGS installed multiple-depth wells

• 9 sites; 46 wells

Water-quality sampled since 1/1/2001

• Surface-water sites: 56 (includes 8 lake sites)
• Groundwater sites: 94; 183 data samples
• Total samples, about 2800 available in publicly accessible database. Most groundwater sites are sampled 1-2 times; some surface-water sites are sampled hundreds of times

Project Chief: Wes Danskin
Phone: 619-225-6132
Email: wdanskin@usgs.gov

Welcome to the United States Geological Survey (USGS) San Diego Hydrogeology (SDH) project website, which provides geologic and hydrologic information for the transboundary San Diego–Tijuana area, USA and Mexico. This website provides background information about the project; a variety of news items; a large amount of data, in particular for USGS multiple-depth, monitoring-well sites; geologic and hydrologic models; and additional resources including photos, illustrations, and references.

Last updated: July 2023.

Some additional data may be available from the USGS database National Water Information System (NWIS).