San Diego Hydrogeology


Explanation of Data

  • Text/bullet color blue indicates data are available.

 

Example:

Completion date: 8/12/2009
Basic characteristics:
description, photographs, map, view cores, measure detail
Geophysical logs: view well construction diagram, raw data
.wcl = WellCAD files that require specialized software to view
.las = Century Geophysical software that requires a free program to view
.pdf = requires Acrobat Reader to view
Lithologic logs: summary, shaker, sieve, view shaker, view sieve
Nearby surface-water site: none

 

Terms: NWIS - National Water Information System

Note: Water levels are not adjusted to freshwater equivalents.

Basic characteristics:

  • Description - Brief site description that includes DWR station name, USGS site identification number, location, period of record, hole and perforation depths.
  • Photographs - Well site photographs showing general area (top), immediate view (middle), and vault (bottom). Link for additional photographs may include drilling, vault installation, equipment installed, and surrounding area.
  • Map - Dynamic map with basemap features.
  • View cores - Chart showing core number, depth, and recovery information.
  • Measure detail - Diagram showing site measurement options and altitude of the site in JPG format.
Geophysical logs:
  • View diagram - Well construction diagram with core locations and elogs shown in TIF format.
  • Raw data - Folders and subfolders containing raw elog files in various formats that require specialized software to view, and composite Portable Document Format (PDF) documents.
Lithologic logs:
  • Summary - Very brief general lithology.
  • Shaker - Description of shaker lithology at depth.
  • Sieve - Description of sieve lithology at depth.
  • View shaker - Photos of shaker sample trays.
  • View sieve - Photos of sieve sample trays.

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).

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