USGS Water-Year Summary for Site 08099400

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	62614 Elevation, lake/res, NGVD29(Min.,Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

08099400 Proctor Lake near Proctor, TX

LOCATION - Lat 31°58'07", long 98°29'09" referenced to North American Datum of 1927, Comanche County, TX, Hydrologic Unit 12070201, in intake structure at Proctor Lake on Leon River, 2.0 mi upstream from U.S. Highways 67 and 377, 3.5 mi west of Proctor, and 228.1 mi upstream from mouth.

DRAINAGE AREA - 1,259 mi².

REVISIONS HISTORY - WDR TX-76-2: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Jan. 1963 to Sept. 2000 (contents furnished by U.S. Army Corps of Engineers), Oct. 2000 to Sept. 2002 (contents), Oct. 2002 to current year. Prior to Oct. 1970, published as "Proctor Reservoir". PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Jan. 1964 to July 1982, Jan. 1990 to Aug. 1997. BIOCHEMICAL DATA: Jan. 1964 to July 1982, Jan. 1990 to Aug. 1997.

GAGE - Water-stage recorder. Datum of gage is U.S. Army Corps of Engineers local datum. To compute lake elevation in NAVD88 subtract 0.05 ft. Prior to May 28, 1963, nonrecording gage at same site and datum. Satellite telemeter at station.

COOPERATION - Records of diversions may be obtained from the U.S. Army Corps of Engineers.

REMARKS - Intermittent missing record is the result of editing erroneous values. Some records listed in the period of record may not be available electronically. The lake is formed by a reinforced concrete gated structure and rolled earthfill dam, total length 13,460 ft. The lake was operated as a detention basin from Jan. 30 to July 5, 1963. The gates were closed July 6, 1963, but the lake was operated as a detention basin to elevation 1,156.0 ft. until construction was completed. Deliberate impoundment began Sept. 30, 1963. The spillway is a gated concrete gravity structure located on the left bank, with an ogee weir section and basin. The spillway is controlled by eleven 40.0- by 35.0-foot tainter gates. The spillway was designed to discharge 431,800 ft³/s at an elevation of 1,201.0 ft. The lake is operated for flood control and water conservation. Inflow is partly regulated by Leon Reservoir (station 08099000, conservation pool storage 26,420 acre-ft.). Inflow is also affected at times by discharge from the flood-detention pools of 23 floodwater-retarding structures with a combined detention capacity of 43,690 acre-ft. These structures control runoff from 172 mi² in the Leon River and Rush Creek drainage basins. Borrow is not included in capacity totals. The dam is owned by the U.S. Army Corps of Engineers. Conservation pool storage is 55,590 acre-ft. Data regarding the dam are given in the following table. The USGS is not responsible for errors in datum or elevations provided by other entities.

                                                                              Elevation (feet)
Top of dam............................................................         1,206.0
Design flood..........................................................         1,201.0
Top of gates..........................................................         1,197.0
Crest of spillway (top of conservation pool)..........................         1,162.0
Lowest gated outlet (invert)..........................................         1,128.0

EXTREMES FOR PERIOD OF RECORD - Maximum contents, 383,100 acre-ft, May 2, 1990, elevation, 1,197.63 ft; minimum since first filling of lake, 6,090 acre-ft, Oct. 28, 2000, elevation, 1,142.36 ft. Maximum elevation, 1,197.66 ft, June 04, 2016; minimum elevation, 1,142.36 ft, Oct. 28, 2000.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Jan. 1980 to Jul. 1982, Mar. 1991 to Aug. 1997, Jul. 1999, Jan. 2005 to Sept. 2006. BIOCHEMICAL DATA: Jan. 1980 to Jul. 1982, Mar. 1991 to Aug. 1997, Jul. 1999, Jan. 2005 to Sept. 2006. RADIOCHEMICAL DATA: Jan. 1981 to May 1981. PESTICIDE DATA: Jul. 1999, Jan. 2005 to Sept. 2006.

REMARKS - Beginning in the 2006 Water Year, water-quality data published with this site are now published as: 315814098291201 Proctor Lk Site AC 315823098282801 Proctor Lk Site AL 315832098302301 Proctor Lk Site BC 315837098314201 Proctor Lk Site CC 315924098285501 Proctor Lk Site EC 315943098273101 Proctor Lk Site DC 320040098293501 Proctor Lk Site FC