USGS Water-Year Summary for Site 340633117174002

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	Available Parameters
	62611 Elevation, GW, NAVD88(Min.,Med.,Max.)
	72019 Water level, depth LSD(Max.,Min.,Med.)

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Water year 2025: 2025-10-01 to 2026-09-30

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USGS Water-Year Summary 2025

340633117174002 001S004W03N001S, Feldheym Library Cluster Well at San Bernardino, CA

California Coastal Basin aquifers

LOCATION - Lat 34°06'33.52", long 117°17'39.98" 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. 4, T.1 S., R.4 W., in the southeastern-most parking lot of Feldheym Municipal Public Library in the city of San Bernardino.

REVISIONS HISTORY -

Upon sounding this well for the first time on 3/8/2018 it was determined that this well had not been identified correctly for entire period of record. Station number remains the same but well name was changed on 5/15/2018 from 1S/4W-3N2 to 1S/4W-3N1. No continuous or discrete values were modified.

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 1,160 ft. Upper casing diameter 2.17 in; top of first opening 1,130 ft, bottom of last opening 1,150 ft.

DATUM - Land-surface datum is 1,062.14 ft above North American Vertical Datum of 1988. Measuring point: TOP OIF STEEL CASING IN VAULT, 1.74 ft below land-surface datum, Nov. 18, 2003 to May. 20, 2020; TOP OF STEEL CASING IN VAULT, 1.72 ft below land-surface datum, May. 19, 2020 to present. Prior to October 3, 2022, Land-surface datum is 1062.29 ft above North American Vertical Datum of 1988.

PERIOD OF RECORD - Water year 2004 to current year.

GAGE - Electronic data logger.

REMARKS - The Feldheym cluster wells consist of six continuous record groundwater wells, located in two ground-level vaults ("deep" and "shallow"). The individual stations are well 1S/4W-3N2, station 340633117174001; well 1S/4W-3N1, station 340633117174002; well 1S/4W-3N3, station 340633117174003; well 1S/4W-3N4, station 340633117174004; well 1S/4W-3N5, station 340633117174005; and well 1S/4W-3N6, station 340633117174006.

PERIOD OF DAILY RECORD - January 2004 to current year.

EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 138.08 ft below land surface, Mar. 4, 2004; lowest water level recorded, 262.37 ft below land surface, October 07, 2022.