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: wdanskin@usgs.gov or send a letter). 619.225.6132
