USGS Water-Year Summary 2020
10259300 Whitewater River at Indio, CA
LOCATION - Lat 33°44'14", long 116°14'07" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.15, T.5 S., R.7 E., Riverside County, CA, Hydrologic Unit 18100201, on right bank of concrete drop structure, 1,000 ft upstream from Monroe Street Bridge, and 1.7 mi northwest of Indio.
DRAINAGE AREA - 1,073 mi².
- WDR CA-72-1: 1971.
PERIOD OF RECORD - March 1966 to current year.
GAGE - Water-stage recorder and crest-stage gage. Concrete control since Oct. 1, 1979. Elevation of gage is NGVD of 1929, from topographic map. Prior to Oct. 1, 1979, water-stage recorder at site 0.5 mi upstream at different datum. Oct. 1, 1979, to Feb. 17, 1983, and Feb. 18, 1983, to Nov. 18, 1991, at same site at different datums.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Mar. 2 or 3, 1938, reached a discharge of 29,000 ft³/s, on basis of slope-area measurement, at site 5.0 mi upstream. Flood of Nov. 22, 1965, reached a stage of 15.3 ft, from floodmark, at site and datum used prior to Oct. 1, 1979, discharge, 14,100 ft³/s, on basis of slope-area measurement of peak flow.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 16,500 ft³/s, Feb. 14, 2019, gage height, 12.96 ft, from slope area computation; no flow for all or most of each year.