San Diego Hydrogeology

About Us

We are a dedicated group of scientists who take pride in deciphering the largely unresearched geology and hydrology of the San Diego–Tijuana area of southern California, USA, and Northern Baja, Mexico. We collect and interpret high quality data, test our ideas with a variety of numerical models, and work closely with local water agencies. We are providing the necessary understanding to develop additional water resources, in particular groundwater from the San Diego Formation and related alluvial deposits.

Additional contact information may be found through the following links:

If You Have Questions or Need Assistance...

Team members for this project are available to respond to your inquiry or direct you to someone who may be able to help.

Or you could use our web form which will send an email to a staff member.

We value your opinions and encourage you to use our web survey to better improve this website.

Volunteering, Intern Opportunities, Employment

The USGS, and the San Diego Hydrogeology project in particular, occasionally have openings for volunteers, interns, post-docs, seasonal hires, and permanent employees.

If you are interested in volunteering or becoming employed by the USGS San Diego Hydrogeology project, please submit the following 3 items via email to

  1. Letter of interest -- we want to know why you want to volunteer or work for the USGS, and the San Diego Hydrogeology project in particular;
  2. Unofficial college or high school transcripts -- we are interested in your complete academic record; and
  3. Resume -- we are interested in learning about you professionally, academically, and personally.

Thank you for your interest and time, Wes Danskin, Project Chief
San Diego Hydrogeology Project

Contact Us

4165 Spuance Road, Suite 200
San Diego, CA 92101
(619) 225-6100

Additional Resources May be Found Through the Following Search

image of search iconUSGS Search or use Frequently Asked Questions to find the specific USGS information, data, maps, products, or services that you need.

image of an online form iconUse our online form for feedback and questions about water. While we make every effort to reply to your inquiries as soon as possible, please allow up to seven days for a response.

Use the Electronic Phone Book to locate a specific USGS employee, or call toll-free 1-888-ASK-USGS (1-888-275-8747).


Contact Information for Other USGS Resources

USGS National Center
12201 Sunrise Valley Drive
Reston, VA 20192, USA 

Use the ASK USGS contact form for general USGS questions.

USGS Office of Communications staff is available to the media around-the-clock.

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