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Water-Year Summary for Site 09522000

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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
09522000 COLORADO RIVER AT NORTHERLY INTERNATIONAL BOUNDARY, ABOVE MORELOS DAM, NEAR ANDRADE, CA
LOCATION - Lat 32°43'07", long 114°43'05" referenced to North American Datum of 1927, Yuma County, AZ, Hydrologic Unit 15030108, Gila and Salt River meridian, in Yuma County, AZ, on left bank at northerly international boundary, 0.5 miles east of Andrade, 1.1 miles upstream from Morelos Dam, 1.1 miles downstream from Rockwood Gate, and 6.4 miles downstream from gaging station on Colorado River below Yuma Main Canal Waste Way.
DRAINAGE AREA - 246,700 mi², approximately, including all closed basins entirely within the drainage boundary, also 3,959 mi² in Great Divide Basin in southern Wyoming.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Jan. 1950 to current year. Prior to Oct. 1958 published as "at international boundary."
GAGE - Water-stage recorder.
COOPERATION - Discharges are furnished by International Boundary Water Commission. These discharge figures are then rounded in accordance with standard USGS policy.
REMARKS - Record is rated good. This record exhibits flows across the Northerly International Boundary above Morales Dam. Minor diversions to the United States below this station by pumping from ground water for irrigation in the floodway between river and Yuma levee. Station is accounting point for 1944 International Treaty detailing water delivery to Mexico.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 40,600 ft³/s, Aug. 20, 1983; maximum elevation, 115.65 ft, Aug. 18 and 19, 1983; minimum discharge, 495 ft³/s, Sept. 28, 1970; minimum elevation, 101.72 ft, Nov. 2, 1981.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Oct. 1961 to current year.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Oct. 1969 to Sept. 1984.
REMARKS - Discharge reported by International Boundary and Water Commission. Unpublished chemical analyses for water years 1961-68 available from Arizona Water Science Center Office in Tucson, AZ.