San Diego Hydrogeology
Site Description for Otay River - SDOR (18S/2W-23G2–6)
STATION NUMBER: 323528117031401–5 018S002W23G002–6S Agency: USGS
LOCATION: Latitude 32°35'28.45", longitude 117°03'14.01" referenced to North American Datum of 1983, San Diego County, CA, Hydrologic Unit is 1807030410
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-23G2 18S/2W-23G3 18S/2W-23G4 18S/2W-23G5 18S/2W-23G6 |
323528117031401 323528117031402 323528117031403 323528117031404 323528117031405 |
9/18/2009 to present 9/18/2009 to present 1/20/2009 to present 9/18/2009 to present 1/16/2009 to present |
10/1/2010 to present 9/19/2009 to present 9/19/2009 to present 9/19/2009 to present 9/19/2009 to present |
COOPERATION: The station is operated under cooperative agreement with the Sweetwater Authority
WELL CHARACTERISTICS:
| Well Id | Hole depth (ft) | Well depth (ft) | Perforation depth (ft) | Casing size & type |
|---|---|---|---|---|
| 18S/2W- 23G6 23G5 23G4 23G3 23G2 |
1472 1472 1472 1472 1472 |
90 240 570 970 1460 |
70–90 220–240 550–570 950–970 1420–1460 |
2" PVC 2" PVC 2" PVC 2" PVC 3" PVC |
ROAD LOG: Key intersection is the intersection of Interstate Highway 5 and Highway 163 about 1 miles from downtown San Diego. Directions are given from Interstate Highway 5 South towards National City.
| Mileage | Description |
|---|---|
| 10.3 | From I-5 South take exit 5B for Main Street |
| 0.4 | Turn left at Main Street and continue to Mace Street |
| 2.1 | Turn right at Mace Street |
| 0.1 | Well is on the west side of the street at south end of the street |
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