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California Water Science Center (CAWSC) - San Bernardino Valley Optimal Basin Management (OBM)

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San Bernardino Optimal Basin Management

Welcome to the U.S. Geological Survey (USGS) San Bernardino Optimal Basin Management website. This site provides hydrologic data collected or compiled by the USGS in the San Bernardino area; some additional data may be available from the USGS database National Water Information System (NWIS).

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

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Site Description for Dunlap Acres (2S/2W-4L2-6)

WATER-LEVEL RECORD: The period of record for intermittent and daily water-level measurements is listed below. Accuracy should be good (less than 0.1 feet) provided the sensor/cable assemblies do not slip and the data logger and barometer/transmitter are kept dry and clean.

State well number USGS station number Intermittent water level Daily water level
2S/2W-4L2 340130117054901 8/11/2004 to present no data
2S/2W-4L3 340130117054902 8/11/2004 to present no data
2S/2W-4L4 340130117054903 8/11/2004 to present no data
2S/2W-4L5 340130117054904 8/11/2004 to present no data
2S/2W-4L6 340130117054905 8/11/2004 to present no data

CONSTRUCTION: Well and perforation depths, casing size and date of drilling completion is listed below.

State well number USGS station number Hole depth(ft) Perforation depth(ft) Casing size and type Date drilled
2S/2W-4L2 340130117054901 1107 1010-1050 2" PVC 4/22/2004
2S/2W-4L3 340130117054902 1107 830-850 2" PVC 4/22/2004
2S/2W-4L4 340130117054903 1107 590-610 2" PVC 4/22/2004
2S/2W-4L5 340130117054904 1107 440-460 2" PVC 4/22/2004
2S/2W-4L6 340130117054905 1107 230-250 2" PVC 4/22/2004

Questions about Optimal Basin Management? Please contact Wes Danskin (email: wdanskin@usgs.gov or send a letter). 619.225.6132
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Page Last Modified: Wednesday, 18-May-2011 13:15:47 EDT