USGS Water-Year Summary 2023
340800117235901 001N005W34D001S, Rialto Airport Cluster Well at Rialto, CA
California Coastal Basin aquifers
LOCATION - Lat 34°08'03.44", long 117°24'02.52" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 sec.34, T.1 N., R.5 W., San Bernardino County, CA, Hydrologic Unit 18070203, in SE 1/4 sec. 33, T. 1N., R. 5W., adjacent to Highland Avenue, at Linden Avenue, at the city of Rialto Airport, in Rialto.
REVISIONS HISTORY - Water level and time series data from 02/26/2019 to 04/19/2019 was reanalyzed due to revision of discrete water level taken on 04/19/2019.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 990 ft. Upper casing diameter 3 in; top of first opening 970 ft, bottom of last opening 990 ft.
DATUM - Land-surface datum is 1,465.17 ft above North American Vertical Datum of 1988. Measuring point: Top of PVC casing, 0.75 ft below land-surface datum, Mar. 6, 2013 to Jun. 7, 2017; TOP OF CASING, N SIDE, 4.51 ft below land-surface datum, Jul. 20, 2017 to present. Prior to 10/05/2022, Land-surface datum was 1,469.21 ft above North American Vertical Datum of 1988.
PERIOD OF RECORD - Water year 1992 to current year.
GAGE - Electronic data logger.
PERIOD OF DAILY RECORD - June 1995 to August 2004, November to December 2004, July 2005 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 414.05 ft below land surface, Apr. 23, 2000; lowest water level recorded, 521.34 ft below land surface on Sept. 18, 2023.