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Water-Year Summary for Site 05247500

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Available Parameters
00060 Discharge(Mean)  

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

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USGS Water-Year Summary 2020
05247500 CROW WING RIVER NEAR PILLAGER, MN
LOCATION - Lat 46°18'18", long 94°22'38" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.30, T.133 N., R.29 W., Cass County, MN, Hydrologic Unit 07010106, at Sylvan Dam power plant of Minnesota Power Co., 3.6 mi above mouth and 4.9 mi southeast of Pillager.
DRAINAGE AREA - 3,760 mi².
REVISIONS HISTORY - Unpublished, 2009: 1993(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1968 to September 1986, October 1987 to current year. Records for August 1924 to September 1968 available in files of the Minnesota District Office.
GAGE - Water-stage recorder. Datum of gage is 1,151.00 ft above sea level, adjustment of 1912. Prior to January 16, 1991, staff gage attached to retaining wall approximately 20 ft below the turbine outlet bays, at datum 1,150.00 ft, adjustment of 1912.
COOPERATION - Prior to February 1991, records collected by Minnesota Power Company in connection with a Federal Energy Regulatory Commission project.
REMARKS - Prior to January 16, 1991, discharges computed on the basis of power plant. Records for Oct. 1, 1968 to Sept. 30, 1975, were adjusted for storage change in the Sylvan dam reservoir. Flow partly regulated by Sylvan Dam power plant and Gull Lake reservoir.

Daily discharge records good except those for estimated daily discharges, which are fair to poor.

EXTREMES OUTSIDE PERIOD OF RECORD - Maximum daily discharge since 1924, 18,300 ft³/s, Apr. 14, 1965.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 17,500 ft³/s, gage-height 12.11 ft, Apr. 12, 2001, since USGS stage record began, Jan. 16, 1991. Maximum daily-mean discharge, 16,900 ft³/s, Apr. 12, 2001; minimum discharge, 78 ft³/s, July 17, 2001, result of regulation; also occurred Aug. 10, 2007.