USGS Water-Year Summary for Site 10396000

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

10396000 DONNER UND BLITZEN RIVER NEAR FRENCHGLEN, OR

LOCATION - Lat 42°47'27", long 118°52'03" referenced to North American Datum of 1983, Harney County, OR, Hydrologic Unit 17120003, U.S. Bureau of Land Management land, on left bank, 1.5 mi upstream from upper diversions for Malheur National Wildlife Refuge, 2.0 mi downstream from Fish Creek and 3.5 mi southeast of Frenchglen.

DRAINAGE AREA - 200 mi². approximately.

REVISIONS HISTORY - WSP 330: Drainage area (former site). WSP 860: Drainage area (present site). WSP 1564: 1938-39(M), 1942-43(M), 1948(M), 1951(P), 1952-53. WSP 1714: Drainage area. WDR-US-2010: 2005(P), 2006(P), 2009(P). See also PERIOD OF RECORD.

SURFACE-WATER RECORDS

PERIOD OF RECORD - March 1911 to September 1913, March 1914 to September 1916, April 1917 to September 1921, August to November 1929, April to September 1930, December 1937 to current year. Monthly discharge only for some periods, published in WSP 1314. Published as "near Diamond" 1911-21. Records of discharge for January 1909 to September 1910 (published in WSP 270, 290 and 370, for a nonequivalent site as "near Diamond") are unreliable and should not be used.

GAGE - Water-stage recorder and concrete control. Datum of gage is 4260.54 ft above NAVD of 1988. Prior to December 1937, nonrecording gage at several sites within 2 mi downstream at different datums. Dec. 6, 1937 to Feb. 14, 1938, nonrecording gage at present site and datum.

REMARKS - No regulation or diversion upstream from station. Periodic water-quality records for period March 1975 to September 1986 and continuous water-quality records for period October 1975 to September 1981 have been collected at this location.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 4,270 ft³/s Apr. 26, 1978, gage height, 7.15 ft, from floodmarks, from rating curve extended above 1,900 ft³/s on basis of slope-area measurement of peak flow; minimum discharge, 4.2 ft³/s Dec. 9, 1972, result of freezeup.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 2010 to current year.

INSTRUMENTATION - Temperature probe and data logger.

REMARKS - WATER TEMPERATURE: Records represent water temperature at thermistor within 0.2°C. Water temperature record is representational of mean temperature of the river cross section at that point.

EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 28.2°C July 2, 2015; minimum, 0.0°C on many days during fall and winter months.