USGS Water-Year Summary 2017
08123950 E. V. Spence Reservoir near Robert Lee, TX
LOCATION - Lat 31°52'46", long 100°31'01" referenced to North American Datum of 1927, Coke County, TX, Hydrologic Unit 12080008, in outlet works of Robert Lee Dam on the Colorado River, 2.2 mi west of Robert Lee, and at mile 716.0.
DRAINAGE AREA - 15,278 mi² of which 10,260 mi² probably is noncontributing.
PERIOD OF RECORD - Dec. 1968 to Sept. 2003, Oct. 2003 to Sept. 2004 (elevation), Oct. 2004 to current year.
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Nov. 1969 to Aug. 1988.
BIOCHEMICAL DATA: Nov. 1969 to Aug. 1988.
REVISED RECORDS - WDR TX-81-3: Drainage area.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929. Prior to June 24, 1969, nonrecording gage at same site and datum. Satellite telemeter at station.
COOPERATION - Records of diversions can be obtained from the city of San Angelo and from the Colorado River Municipal Water District.
EXTREMES FOR PERIOD OF RECORD - Dec. 1968 to Sept. 2003, Oct. 2004 to current year: Maximum contents, 355,300 acre-ft, June 16, 1987; minimum contents after initial filling, 974 acre-ft, Sept. 27, 2012; Dec. 1968 to current year: Maximum elevation, 1,887.03 ft, June 16, 1987; minimum elevation, 1,810.05 ft, Sept. 27, 2012.