San Diego Hydrogeology


Site Description for Santa Ysabel - SDSY (12S/1W-34L2–5)

STATION NUMBER: 330514116582901–3 012S001W34L002S–4S,  330514116582801  012S001W34L005S Agency: USGS
LOCATION: Latitude 33°05'14.44", longitude 116°58'29.12" referenced to North American Datum of 1983, in T.12 S., R.1 W., San Diego County, CA, Hydrologic Unit 18070304
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
12S/1W-34L2
12S/1W-34L3
12S/1W-34L4
12S/1W-34L5		 330514116582901
330514116582902
330514116582903
330514116582801		 1/6/2011 to present
1/4/2001 to present
12/28/2010 to present
1/4/2011 to present		 4/29/2011 to present
4/29/2011 to present
4/29/2011 to present
none
COOPERATION: This station is operated under cooperative agreement with the City of San Diego.
WELL CHARACTERISTICS:
Well Id Hole depth (ft) Well depth (ft) Perforation depth (ft) Casing size & type
12S/1W-
34L5
34L4
34L3
34L2
60
355
355
355
60
90
210
340
50–60
70–90
190–210
280–340
2" PVC
2" PVC
2" PVC
2" PVC
ROAD LOG: Start at: 12110 Tech Center Dr Poway, CA 92064

From I-15 (in Escondido) drive East on Hwy 78. Turn right (south) at N Broadway/Hwy 78. Turn left on E Washington Ave. Turn right at N Ash St. Continue SE on CA Hwy 78/San Pasqual Valley Road. Drive 2 miles past San Diego Wild Animal Park. Turn right at first driveway east of San Diego Archaeological Center. Follow gravel drive south, past white house, through Santa Ysabel Creek. Wells are located on top of southern creek bank, west side of dirt road.

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