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USGS Water-Year Summary 2025
340927117242202 001N005W21K002S, Upper Linden Ponds Cluster Well at Rialto, CA
California Coastal Basin aquifers
LOCATION - Lat 34°09'27.43", long 117°24'24.84" referenced to North American Datum of 1983, in sec.00, T.1 N., R.5 W., San Bernardino County, CA, Hydrologic Unit 18070203, in Rancho Muscupiabe Grant, in a complex of reservoirs near the intersection of Locust and Riverside Avenues, in Rialto.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 742.8 ft. Upper casing diameter 3 in; top of first opening 740 ft, bottom of last opening 760 ft.
DATUM - Land-surface datum is 1,648.81 ft above North American Vertical Datum of 1988. Measuring point: MP A--, 0.8 ft above land-surface datum, Mar. 10, 1992 to Aug. 4, 1995; TOP OF PVC IN VAULT ABOVE LSD, 0.52 ft above land-surface datum, Aug. 3, 1995 to present. Prior to October 02, 2023, Landâsurface datum is 1,647.84 ft above North American Vertical Datum of 1988.
PERIOD OF RECORD - Water year 1992 to current year.
GAGE - Electronic data logger.
REMARKS - The Upper Linden Ponds Cluster Wells consist of four continuous-record groundwater wells, located in three ground-level vaults. The individual stations are well 1N/5W-21K1, station 340927117242201; well 1N/5W-21K2, station 340927117242202; well 1N/5W-21K3, station 340927117242203; and well 1N/5W-21K4, station 340927117242204.
PERIOD OF DAILY RECORD - September 1995 to August 2004, November 2004 to February 2005, June to July 2005, October 2005 to May 2007, June 2008 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 361.70 ft below land surface, Jan. 2, 2006; lowest water level recorded, 446.42 ft below land surface, Jan 17, 2019.
