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Water-Year Summary for Site 09402300

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00010 Temperature, water(Mean)  
00060 Discharge(Mean)  

Water year 2021: 2020-10-01 to 2021-09-30

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USGS Water-Year Summary 2021
LOCATION - Lat 36°11'43", long 111°46'35" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 SW 1/4 sec.32, T.32 1/2 N., R.6 E., Coconino County, AZ, Hydrologic Unit 15020016, Gila and Salt River meridian, in the Grand Canyon National Park, on the left bank, about 0.75 miles upstream of the mouth, about 62 miles west southwest of Lees Ferry, 55 miles downstream of Cameron, and about 11 miles east northeast (line of sight or flight miles) from Desert View.
DRAINAGE AREA - 26,972 mi², of which 368 mi² are noncontributing.
PERIOD OF RECORD - May 1990 to July 1990, at a site about 2,500 ft downstream, August 1990 to January 1993, May 24, 2003 to current year.
GAGE - Water-stage recorder. Elevation of gage is 2,700 ft above sea level, from topographic map. Prior to August 1, 1990, on the right bank about 2,500 ft downstream, datum 2,720 ft above sea level, from topographic map, August 1990 to January 1993, datum 2,745 ft above sea level.
REMARKS - Records fair. Diversions above the station for irrigation of about 32,000 acres. Some regulation by reservoirs, combined capacity of the principal reservoirs, about 135,000 acre-ft.
EXTREMES OUTSIDE PERIOD OF RECORD - About 120,000 ft³/s, Sept. 20 or 21,1923, gage height unknown, based on discharge at 09401000, Little Colorado River at Grand Falls.
EXTREMES FOR PERIOD OF RECORD - Maximum recorded peak discharge, 7,860 ft³/s, Jan. 8, 1993, gage height, 55.14 ft. Maximum discharge 18,200 ft³/s, Jan. 12, 1993, based on records at 09402000, Little Colorado River near Cameron, gage height unknown; minimum recorded daily discharge, 194 ft³/s, Mar. 3, 1991.