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San Diego Hydrogeology project

San Diego Hydrogeology

Welcome to the U.S. Geological Survey (USGS) San Diego Hydrogeology website. This site provides hydrologic data collected or compiled by the USGS for the San Diego area. Also provided is a comprehensive listing of reports, including links to online reports. Please use the San Diego Hydrology navigation links located above to access project overview, maps, figures, data, references, and contacts.

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

Site Description for Tijuana Valley #3 (18S/2W-34L1-5)

LOCATION: Latitude 32º 33' 32.4", longitude -117º 04' 31.8" (NAD83) in San Diego County, California. Wells are located approximately 150 feet north of the end of Sunset Ave where it intersects International Rd, and 75 feet northwest of a nearby turbine well in Imperial Beach, California.

SITE INFORMATION: Land-surface altitude is 33 feet above mean sea level (NGVD29) from a 24000 scale topographic map.

INSTRUMENTATION: None.

WATER-LEVEL RECORD: The period of record for intermittent and daily water-level measurements is listed below.

State well number USGS station number Intermittent water-level Daily water-level
18S/2W-34L1 323332117043101 08/23/2005 no
18S/2W-34L2 323332117043102 08/23/2005 no
18S/2W-34L3 323332117043103 08/23/2005 no
18S/2W-34L4 323332117043104 08/23/2005 no
18S/2W-34L5 323332117043105 08/23/2005 no

WATER-LEVEL MEASUREMENTS: Water levels are measured manually by means of a calibrated electric tape. Electric tape is used to avoid entangling the sensor and cable. Correction factors (comparison to a steel tape) are applied when necessary. Water-level corrections, for example to compensate for gage height, are calculated after each measurement and applied to the recorded values.

MEASURING POINT: Unknown.

TOPOGRAPHIC MAP: USGS Imperial Beach, California, 7.5 minute series.

COOPERATION: The station is operated under cooperative agreement with the Tijuana Valley County Water District.

State well number USGS station number Hole depth (ft) Perforation depth (ft) Casing size and type Date drilled
18S/2W-34L1 323332117043101 1400 1336-1356 2" PVC casing 06/27/1997
18S/2W-34L2 323332117043102 1400 1130-1150 2" PVC casing 06/27/1997
18S/2W-34L3 323332117043103 1400 940-960 2" PVC casing 06/27/1997
18S/2W-34L4 323332117043104 1400 640-660 2" PVC casing 06/27/1997
18S/2W-34L5 323332117043105 1400 360-380 2" PVC casing 06/27/1997

ROAD LOG: Key intersection is the intersection of Interstate Highway 5 and CA-905 in San Diego, CA. Directions given are from CA-905 West.

Mileage Description
0.0 Continue on CA-905 West as it becomes Tocayo Avenue
0.3 Turn left on Oro Vista Road.
0.6 Oro Vista Road turns right and becomes International Road Wells are located approximately 150 feet north from where International Road turns right to become Sunset Avenue
Questions about San Diego Hydrogeology? Please contact Wes Danskin (email or address). 619.225.6132
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Page Last Modified: Wednesday, 09-Sep-2009 18:40:05 EDT