California Water Science Center (CAWSC) - San Diego Hydrogeology Project (SDH)

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San Diego Hydrogeology

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).

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

Otay Trolley - SDOT (18S/2W-22E3-7)
Site Id: 323527117050001-5
Core Core Depth Interval (ft) Total Recovered (cm) % Recovery
From To
1 1605.0 1610.0 152.4 100%
Total core recovered: 152.40 cm (5.0 ft)