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

Sweetwater - SDSW (17S/2W-28R4-9)
Site Id: 323932117050801-6
Core Core Depth Interval (ft) Total Recovered (cm) % Recovery
From To
1 18 23 0 0%
2 23 28 0 0%
3 108 113 68.75 45%
4 113 118 11.5 8%
5 118 123 158.5 104%
6 123 126 67 73%
7 168 172 143 117%
8 181 183 72.5 119%
9 228 233 147.5 97%
10 233 238 156 102%
11 238 243 150 98%
12 243 248 98 64%
13 248 253 159 104%
14 538 543 18 12%
15 543 547 53 43%
16 551 553.5 25.5 33%
17 561 566 120 79%
18 611 616 73 48%
19 616 621 47.5 31%
20 698 703 47 31%
21 703 708 36.5 24%
22 708 713 0 0%
23 713 718 152.5 100%
24 718 723 154.5 101%
25 723 728 160 105%
26 940 945 0 0%
27 945 950 0 0%
28 950 955 0 0%
29 955 960 0 0%
30 960 965 62.5 41%
31 965 966 8.5 28%
32 966 971 83.5 55%
33 971 975 61.5 50%
34 975 980 80 52%
35 1341.5 1344.5 93 102%
36 1344.5 1347 98 129%
37 1728 1733 0 0%
38 1735 1740 154.5 101%
39 1740 1745 123 81%
40 1841 1846 40 26%
41 1846 1849 30 33%
42 2000 2002.5 73 96%
43 2002.5 2005.5 94 103%
         
Total core recovered: 3120.75 cm (102.4 ft)  

Site Characteristics

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