USGS Water-Year Summary 2023
05062500 WILD RICE RIVER AT TWIN VALLEY, MN
LOCATION - Lat 47°15'56", long 96°14'51" referenced to North American Datum of 1983, in NW 1/4 NE 1/4 sec.27, T.144 N., R.44 W., Norman County, MN, Hydrologic Unit 09020108, on left bank, 100 ft upstream from County Highway 29 bridge, 0.8 mi northeast of Twin Valley, and 2 mi upstream from small tributary.
DRAINAGE AREA - 934 mi².
REVISIONS HISTORY - WSP 955: 1941. WSP 1308: 1915(M), 1917(M).
SURFACE-WATER RECORDS
GAGE - Water-stage recorder. Datum of gage is 1,008.16 ft above sea level (NGVD of 1929, U.S. Army Corps of Engineers benchmark). June 1909 to September 1917, non-recording gage at site 0.2 mi downstream at different datum. July 23, 1930 to November 24, 1934, non-recording gage at highway bridge 100 ft downstream from present site at present datum. November 25, 1934 to August 2, 1950, water-stage recorder 80 ft upstream from present site at present datum.
EXTREMES FOR PERIOD OF RECORD - Maximum peak flow, 20,300 ft³/sec, stage, 17.96 ft, June 24, 2002; stage is from a flood mark. Maximum peak stage, 20.00 ft, July 22, 1909, site and datum then in use.
WATER-QUALITY RECORDS
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum, 984 uS/cm, January 3, 1977; minimum, 185 uS/cm, April 6, 1978.
pH: Maximum, 8.4, many days in 2006; minimum, 8.1, many days in 2006.
WATER TEMPERATURES: Maximum, 33.0 C., July 17, 1977; minimum, 0.5 C., January 13, 1977. Probably reaches 0.0 C. many days most winters.
DISSOLVED OXYGEN: Maximum, 9.8 mg/L, August 7, 2006; minimum, 5.1 mg/L, July 31, 2006.
DISSOLVED OXYGEN, % OF SATURATION: Maximum, 126, July 27 and August 7, 2006; minimum, 66, July 31, 2006.