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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
10259540 Whitewater River near Mecca, CA
LOCATION - Lat 33°31'29", long 116°04'36" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.32, T.7 S., R.9 E., Riverside County, CA, Hydrologic Unit 18100201, on left bank, 1.6 mi upstream from mouth at Salton Sea, and 3.3 mi south of Mecca.
DRAINAGE AREA - 1,495 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1960 to current year (since October 1992, low-flow records only).
GAGE - Water-stage recorder. Datum of gage is 226.77 feet below NAVD of 1988. Oct. 1, 1960, to Mar. 22, 1967, at site 1.3 mi downstream, and Mar. 23, 1967, to July 22, 1970, at site 0.7 mi downstream at different datums.
REMARKS - Most flow represents seepage and return flow from irrigated areas. No discharge records computed above 200 ft³/s since October 1992. See schematic diagram of Salton Sea Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - (1960-92) Maximum daily discharge, 2,500 ft³/s, estimated, Jan. 25, 1969; minimum daily, 37 ft³/s, Nov. 25-29, 1960.
