USGS Water-Year Summary 2024
05049995 MUD LAKE ABOVE WHITE ROCK DAM NEAR WHITE ROCK, SD
LOCATION - Lat 45°51'41", long 96°34'20" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.34, T.128 N., R.47 W., Roberts County, SD, Hydrologic Unit 09020101, on Sisseton Indian Reservation, on left bank, 10 ft west of White Rock Dam, 4 mi south of White Rock and 5 mi northwest of Wheaton, MN.
DRAINAGE AREA - unknown
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2000 to current year. Gage height record prior to October 2000 can be obtained from Corps of Engineers.
GAGE - Datum of gage is 960.50 ft above NAVD88 (levels by USACE, April 2017). Prior to conversion to NAVD88, datum was published as 960 ft above NGVD of 1912.
EXTREMES FOR PERIOD OF RECORD - Maximum gage-height, 80.90 ft, Apr. 29, 2001; maximum daily, 80.76 ft, Apr. 19, 2001; minimum gage-height recorded, 65.14 ft, many days, several years (due in part to regulation), stage was observed lower than the detection limits of gage but precise stage readings were not determined; minimum daily recorded, 65.22 ft, June 14, 2002.