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USGS Water-Year Summary 2025
340414117190201 001S004W20H001S, Cesar Chavez Park Cluster Well, at Colton, CA
California Coastal Basin aquifers
LOCATION - Lat 34°04'14.02", long 117°19'04.08" referenced to North American Datum of 1983, in sec.00, T.1 S., R.4 W., San Bernardino County, CA, Hydrologic Unit 18070203, at the southwest corner of Cesar Chavez Park, in Colton.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 951.1 ft. Upper casing diameter 2 in; top of first opening 918 ft, bottom of last opening 938 ft.
DATUM - Land-surface datum is 993.07 ft above North American Vertical Datum of 1988. Measuring point: TOP OF PVC CASING, 1.07 ft below land-surface datum, Jul. 20, 2011 to present. Prior to 12/07/2022, the land-surface datum was 992.96 ft above North American Vertical Datum of 1988.
PERIOD OF RECORD - Water year 1993 to current year.
GAGE - Electronic data logger.
REMARKS - The Cesar Chavez Park Cluster Wells consist of five continuous record groundwater wells, located in a common ground level vault. The individual stations are well 1S/4W-20H1, station 340414117190201; well 1S/4W-20H2, station 340414117190202; well 1S/4W-20H3, station 340414117190203; well 1S/4W-20H4, station 340414117190204; and well 1S/4W-20H5, station 340414117190205.
PERIOD OF DAILY RECORD - March 1995 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 86.08 ft below land surface, June 21, 1994; lowest water level recorded, 145.87 ft below land surface, December 8, 2022.
