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USGS Water-Year Summary 2024
14362000 APPLEGATE RIVER NEAR COPPER, OR
LOCATION - Lat 42°03'50", long 123°06'37" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.30, T.40 S., R.3 W., Jackson County, OR, Hydrologic Unit 17100309, U.S. Army Corps of Engineers land, on left bank, 0.1 mi downstream from Brushy Gulch, 0.6 mi downstream from Applegate Dam, 3.1 mi northeast of former town of Copper and at mile 45.7.
DRAINAGE AREA - 225 mi².
REVISIONS HISTORY - WDR OR-78-1: Drainage area. WDR-US-2010: 2009.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1938 to current year. Prior to January 1939, monthly discharge only, published in WSP 1318.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,747.51 ft above NGVD of 1929. Prior to Oct. 1, 1977, at site 0.6 mi upstream at datum 12.15 ft higher.
REMARKS - Flow regulated since December 1980 by Applegate Lake (active capacity, 75,200 acre-ft). Some storage during winter in Acorn Women Lakes Reservoir (capacity, 1,100 acre-ft). Diversions upstream from station from Carberry Creek for irrigation in Thompson Creek basin.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 29,800 ft³/s Jan. 15, 1974, gage height, 25.38 ft, site and datum then in use, from high-water mark in well, from rating curve extended above 12,000 ft³/s on basis of four slope-area measurements of peak flows made in 1950, 1955, 1964 and 1974; minimum discharge, 1.5 ft³/s Dec. 20, 1980, result of regulation at Applegate Dam.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: September 1980 to September 1987.
pH: September 1980 to September 1987.
WATER TEMPERATURE: January 1977 to current year.
DISSOLVED OXYGEN: September 1980 to September 1987.
INSTRUMENTATION - Temperature probe and data logger.
REMARKS - Temperatures are affected by releases from Applegate Lake.
EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum, 188 microsiemens Sept. 13, 1980; minimum, 61 microsiemens Dec. 3, 1980, Dec. 20, 1981, June 19, 20, 1983.
pH: Maximum, 9.0 units Sept. 4, 1980; minimum recorded, 7.1 units Oct. 8-10, 13, 16, 17, 1986.
WATER TEMPERATURE: Maximum, 26.5°C Aug. 7, 1978; minimum, 0.0°C on many days during winter periods prior to filling of Applegate Lake.
DISSOLVED OXYGEN: Maximum, 15.2 mg/L Feb. 17, 18, 1986; minimum, 4.9 mg/L Sept. 28-30, 1981.
