10256060 WHITEWATER RIVER AT WHITE WATER CUTOFF, AT WHITE WATER, CA

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 September 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. 

                       DISCHARGE MEASUREMENTS, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997

                                                                       Discharge
                                       Date            Time              (ft3/s)

                                      Oct.   8         0645               310
                                      Nov.  12         1030               297
                                      Dec.   4         1530               349
                                      Jan.   8         1458                14.8
                                      Feb.   6         0845               192
                                      Mar.   5         1133               208
                                      Apr.   2         1530               362
                                      Apr.  28         1400               189
                                      May   30         1100                 0
                                      June   4         0830               252
                                      June  30         1208               190
                                      Aug.  13         1132               247
                                      Sept.  4         1342               325