San Diego Hydrogeology


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).

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

Cores

El Toyon Park - SDEP (17S/2W-16Q9-13)
Site Id: 324116117050801-5
Core Core Depth Interval (ft) Total Recovered (cm) % Recovery
From To
1 70.0 75.0 156.0 102%
2 75.0 80.0 112.5 74%
3 80.0 85.0 159.0 104%
4 85.0 90.0 159.5 105%
5 90.0 95.0 147.0 96%
6 95.0 100.0 152.0 100%
7 100.0 105.0 157.5 103%
8 105.0 110.0 150.5 99%
9 260.0 262.0 63.0 103%
10 262.0 267.0 151.0 99%
11 320.0 325.0 155.5 102%
12 325.0 330.0 122.0 80%
13 330.0 335.0 155.0 102%
14 335.0 340.0 146.5 96%
15 340.0 345.0 158.5 104%
16 345.0 350.0 29.5 19%
17 405.0 410.0 157.5 103%
18 410.0 415.0 139.0 91%
19 415.0 420.0 148.5 97%
20 520.0 525.0 17.5 11%
21 525.0 530.0 0.0 0%
22 530.0 535.0 114.5 75%
23 535.0 540.0 68.0 45%
24 723.0 728.0 160.0 105%
25 728.0 733.0 121.0 79%
26 1170.0 1175.0 0.0 0%
27 1175.0 1180.0 0.0 0%
28 1300.0 1305.0 0.0 0%
         
Total core recovered: 2926 cm (96.0 ft)  

Site Characteristics

Completion date: 6/23/2003
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
Questions about San Diego Hydrogeology? Please contact Wes Danskin (email: wdanskin@usgs.gov or send a letter). 619.225.6132