USGS Water-Year Summary 2023
340555117161201 001S004W11K002S, Lena Road Cluster Well at San Bernardino, CA
California Coastal Basin aquifers
LOCATION - Lat 34°05'54.78", long 117°16'11.89" referenced to North American Datum of 1983, in sec.00, T.1 S., R.4 W., San Bernardino County, CA, Hydrologic Unit 18070203, in sec. 11, T.1 S., R.4 W., in a grassy area at the San Bernardino County Medical Examiner's complex, on Lena Road, in San Bernardino.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 249.8 ft. Upper casing diameter 2.17 in; top of first opening 220 ft, bottom of last opening 240 ft.
DATUM - Land-surface datum is 1,032.37 ft above North American Vertical Datum of 1988. Measuring point: TOP OF STEEL CASING IN VAULT, 1.63 ft below land-surface datum, Nov. 18, 2003 to present; unknown, 1.63 ft below land-surface datum, Apr. 18, 2016 to present. Prior to October 5, 2022, Land-surface datum is 1,032.59 ft above North American Vertical Datum of 1988.
PERIOD OF RECORD - Water year 2004 to current year.
GAGE - Electronic data logger.
PERIOD OF DAILY RECORD - January to December 2004, May to October 2005, January 2006 to current year.
EXTREMES FOR PERIOD OF RECORD -
Highest water level recorded, 75.94 ft below land surface, March 3, 2004 (value from discrete WL reading); lowest water level recorded, 175.50 ft below land surface, on Aug. 15, 2023.