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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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USGS Water-Year Summary 2024
11062450 Fontana Powerplant Forebay Spillway near Fontana, CA
LOCATION - Lat 34°12'10", long 117°26'54" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.06, T.1 N., R.5 W., San Bernardino County, CA, Hydrologic Unit 18070203, on left side of Fontana Powerplant forebay, near right bank of Lytle Creek, and 7.8 mi north of Fontana.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1972 to current year. Records for October 1972 to September 2004 available in the files of the U.S. Geological Survey.
GAGE - Water-stage recorder and sharp-crested weir. Datum of gage is 2250.64 ft above NAVD of 1988.
REMARKS - Flow at this station represents spill from the Fontana Powerplant forebay, with such flow directed back to Lytle Creek via a constructed channel. See schematic diagram of Santa Ana River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 27 ft³/s, Mar. 8, 1992, Apr. 1-3, 2011; no flow at most times in most years.
