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Water-Year Summary for Site 14033500

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Available Parameters
00060 Discharge(Mean)  

Water year 2021: 2020-10-01 to 2021-09-30
 
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USGS Water-Year Summary 2021
14033500 UMATILLA RIVER NEAR UMATILLA, OR
LOCATION - Lat 45°54'11", long 119°19'33" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.21, T.5 N., R.28 E., Umatilla County, OR, Hydrologic Unit 17070103, on left bank, 1.2 mi southeast of Umatilla, 1.6 mi downstream from West Extension main canal of Umatilla project and at mile 2.1.
DRAINAGE AREA - 2,290 mi².
REVISIONS HISTORY - WSP 794: Drainage area. WSP 1398: 1909, 1911, 1914, 1928, 1935.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1903 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 330.47 ft above NGVD of 1929. Oct. 21, 1903 to Jan. 25, 1931, nonrecording gage.
REMARKS - Some regulation since 1927 by McKay Reservoir (active capacity, 71,500 acre-ft). Many diversions upstream from station for irrigation of lands upstream and downstream from station; Brownell Canal diverts downstream from station. Diversions since 1908 to Cold Springs Reservoir (active capacity, 44,600 acre-ft), an off-channel reservoir. Continuous water-quality records for period October 1962 to September 1969 have been collected at this location.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 27,000 ft³/s Feb. 7, 2020, gage height, 10.70 ft; maximum gage height, 11.00 ft May 31, 1906; no flow at times.