San Diego Hydrogeology

Related Links

Sweetwater Reservoir Outflow

Surface Water and Sweetwater Reservoir

Water Quality


Estimated Permeable Surface in the San Diego Area



California Gnatcatcher

USGS Biology Programs

Biologic Investigations

Agencies & Cooperation

Meetings & Publications

Ground Water Resource Association of California, 2006, Integrated management of hydrology & endangered species in the Sweetwater river basin.

Langis, Rene, Zalejko, Malgorzata, and Zedler, Joy B., 1991, Nitrogen Assessments in a Constructed and a Natural Salt Marsh of San Diego Bay: Ecological Applications, Vol. 1, No. 1, p. 40-51.

Earth Science in the Public Interest

Project Chief: Wes Danskin
Phone: 619-225-6132

Welcome to the United States Geological Survey (USGS) San Diego Hydrogeology 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: April 2016

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

Questions about San Diego Hydrogeology? Please contact Wes Danskin (email: or send a letter). 619.225.6132