USGS Water-Year Summary for Site 08063700

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	Available Parameters
	62614 Elevation, lake/res, NGVD29(Max.,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

08063700 Bardwell Lake near Ennis, TX

LOCATION - Lat 32°15'00", long 96°38'49" referenced to North American Datum of 1927, Ellis County, TX, Hydrologic Unit 12030109, in intake structure of Bardwell Dam on Waxahachie Creek, 5.0 mi south of Ennis, and 5.6 mi upstream from mouth.

DRAINAGE AREA - 178 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Nov. 1965 to Sept. 2000 (U.S. Army Corps of Engineers furnished contents), Oct. 2000 to Sept. 2002 (contents), Oct. 2002 to current year. Prior to Oct. 1970, published as "Bardwell Reservoir". PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Dec. 1969 to Nov. 1977.

GAGE - Water-stage recorder. Datum of gage is 0 ft above NGVD of 1929 and 0.36 above NAVD of 1988. To obtain elevation values in NAVD 1988, subtract 0.36 ft. (U.S. Army Corps of Engineers benchmark). Prior to Apr. 25, 1966, nonrecording gage on intake structure at same datum. Satellite telemeter at station.

REMARKS - Some records listed in the "Period of Record" for surface water and water quality may not be available electronically. The lake is formed by a rolled earthfill dam 15,400 ft long, including a 350-ft uncontrolled off-channel concrete-gravity spillway with ogee weir section. Deliberate impoundment began Nov. 20, 1965, and dam was completed Mar. 27, 1966. Controlled low-flow outlet works consists of a 10.0-ft-diameter concrete conduit with two 5.0- by 10.0-ft sluice gates. The dam is owned by the U.S. Army Corps of Engineers. The lake was built for flood control and water conservation. The City of Waxahachie diverts water from Lake Waxahachie and returns an unknown amount of effluent to Waxahachie Creek upstream. Inflow is affected at times by discharge from flood-detention pools of 23 floodwater-retarding structures with a combined detention capacity of 15,370 acre-ft. These structures control runoff from 52.4 mi² in the Chambers Creek watershed. Data regarding the dam are given in the following table:

                                                                              Elevation (feet)
Top of dam............................................................          460.0
Design flood..........................................................          455.9
Crest of spillway (top of flood-control pool).........................          439.0
Lowest gated outlet (invert)..........................................          391.0

Water-quality records available from May 1979 to Oct. 2006 were published separately as:

Site ID                Site name
321506096382601  Bardwell Lk Site AC nr Bardwell, TX
321704096393501  Bardwell Lk Site BC nr Bardwell, TX
321830096404001  Bardwell Lk Site CC nr Bardwell, TX
321758096412901  Bardwell Lk Site DC nr Bardwell, TX

EXTREMES FOR PERIOD OF RECORD - Maximum contents, 112,100 acre-ft, May 22, 1990, elevation, 434.54 ft; maximum elevation 440.70 ft, June 18, 2015; minimum contents since initial filling, 37,500 acre-ft, Dec. 8, 1999, elevation, 417.21 ft, Nov. 10, 1978, based on Oct. 1976 capacity table; minimum elevation, 415.68 ft, Dec. 3, 2011.