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Water-Year Summary for Site USGS 340707117162706

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
62611 Elevation, GW, NAVD88(Max.,Min.,Med.)  
72019 Water level, depth LSD(Max.,Min.,Med.)  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
340707117162706 001S004W02D006S, Sierra High School Cluster Well at San Bernardino, CA
California Coastal Basin aquifers
LOCATION - Lat 34°07'06.57", long 117°16'27.74" referenced to North American Datum of 1983, in sec.00, T.1 S., R.4 W., San Bernardino County, CA, Hydrologic Unit 18070203, in Rancho Muscupiabe Grant, at the Sierra High School maintenance complex, in San Bernardino.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 513.7 ft. Upper casing diameter 2 in; top of first opening 520 ft, bottom of last opening 530 ft.
DATUM - Land-surface datum is 1,078.65 ft above North American Vertical Datum of 1988. Measuring point: Top of 2 inch steel casing, black mark on north side (below LSD), 2.59 ft below land-surface datum, Oct. 24, 1990 to present; Top of concrete vault (above LSD), 0.5 ft above land-surface datum, Oct. 24, 1990 to Sep. 27, 2019. Prior to 10/06/2022, the land-surface datum was 1,078.59 ft above North American Vertical Datum of 1988.
PERIOD OF RECORD - Water year 1992 to current year.
GAGE - Electronic data logger.
REMARKS - The Sierra High School cluster wells consist of three continuous record groundwater wells, located in a common ground-level vault. The individual stations are station 340707117162706, well 1S/4W-2D6; station 340707117162707, well 1S/4W-2D7; and station 340707117162708, well 1S/4W-2D8.
PERIOD OF DAILY RECORD - November 1991 to June 1995, May 1997 to June 2000, August 2000 to August 2002, October 2002 to current year.
EXTREMES FOR PERIOD OF RECORD -

Highest water level recorded, 84.26 ft below land surface, Feb. 23, 1998; lowest water level recorded, 272.79 ft below land surface, Oct. 7, 2022.