USGS Water-Year Summary 2019
08136600 O. H. Ivie Reservoir near Voss, TX
LOCATION - Lat 31°30'00", long 99°40'05" referenced to North American Datum of 1927, Coleman County, TX, Hydrologic Unit 12090106, on left bank, in outlet structure of Freese-Nichols Dam on Colorado River, 8.0 mi northeast of Millersview, 10.0 mi southwest of Voss, and at mile 615.1.
DRAINAGE AREA - 24,038 mi² of which 11,391 mi² probably is noncontributing.
PERIOD OF RECORD - Sept. 1990 to Sept. 2003 (daily mean contents), Oct. 2003 to Sept. 2004 (daily mean elevation), Oct. 2004 to current year.
GAGE - Water-stage recorder. Datum of gage determined from Colorado River Municipal Water District survey point (vertical control unknown). Satellite telemeter at station.
COOPERATION - Records of diversions may be obtained from the Colorado River Municipal Water District.
EXTREMES FOR PERIOD OF RECORD - Sept. 1990 to Sept. 2003, Oct. 2004 to current year: Maximum contents, 574,700 acre-ft, June 26, 1997; minimum contents after initial filling, 59,110 acre-ft, May 24, 2014; Sept. 1990 to current year: Maximum elevation, 1,552.55 ft, June 26, 1997; minimum elevation, 1,502.46 ft, May 24, 2014.