10256060 WHITEWATER RIVER AT WHITE WATER CUTOFF, AT WHITE WATER, CA
DISCHARGE MEASUREMENTS, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
Date Time Discharge
(ft3/s)
Oct. 15 1240 638
Nov. 4 1225 23
Dec. 4 0920 256
Jan. 5 1540 14
Feb. 4 1340 18
Mar. 10 1035 281
Apr. 1 1030 216
May 7 1220 473
June 2 1045 319
July 6 1315 0
Aug. 10 1643 2.8
Sept. 8 1000 4.2
LOCATION.-Lat 33°55'31", long 116°38'07", in NE 1/4 SE 1/4 sec.11, T.3 S., R.3 E., Riverside County,
Hydrologic Unit 18100200, on center pier of White Water Cutoff (old Highway 99) bridge, 0.1 mi east of White
Water, 0.75 mi downstream from Metropolitan Water District's Colorado River Aqueduct turnout, and 2.0 mi
upstream from San Gorgonio River.
DRAINAGE AREA.-59.1 mi2.
PERIOD OF RECORD.-October 1985 to September 1987 and October 1988 to September 1990. Discharge measurements for
the period October 1984 to September 1985 available in files of the U.S. Geological Survey. Discharge
measurements only, October 1987 to September 1988, October 1990 to current year. Station discontinued as
continuous-record site effective Sept. 30, 1993.
CHEMICAL DATA: Water years 1972-76, 1978-96.
GAGE.-None. Elevation of station is 1,360 ft above sea level, from topographic map.
REMARKS.-Indeterminate stage-discharge relationship. At times, imported water is released to the Whitewater
River from the Colorado River Aqueduct at a point 0.75 mi upstream. Water is diverted out of the basin 16.5 mi
upstream to powerplants in the San Gorgonio River Basin and then to an area north of Banning for irrigation. See
schematic diagram of Salton Sea Basin.
EXTREMES FOR PERIOD OF RECORD (1986-87 and 1989-90).-Maximum discharge, 2,020 ft3/s, Feb. 15, 1986,
gage height, 11.97 ft, from rating curve extended above 900 ft3/s; no flow for many days in some
years.
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