USGS Water-Year Summary for Site 08050050

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

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

08050050 Mountain Creek Lake near Grand Prairie, TX

LOCATION - Lat 32°43'55", long 96°56'35" referenced to North American Datum of 1927, Dallas County, TX, Hydrologic Unit 12030102, at right end of spillway on Mountain Creek Dam on Mountain Creek, 2.5 mi upstream from Texas and Pacific Railway Co. bridge, and 3.7 mi southeast of Grand Prairie.

DRAINAGE AREA - 295 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Oct. 1960 to Sept. 2002 (contents), Oct. 2002 to current year. PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Jan. 1964 to Nov. 1983. RADIOCHEMICAL DATA: Jan. 1981.

GAGE - Water-stage recorder. Datum of gage is 0 ft above NGVD of 1929 and 1.06 above NAVD of 1988. To obtain elevation values in NAVD 1988, subtract 1.06 ft. Prior to Oct. 21, 1960, nonrecording gage at powerplant 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 5,800 ft long, including a controlled spillway with six 34 by 27-ft tainter gates. The dam was completed in Dec. 1936 and deliberate impoundment began on Mar. 24, 1937. The lake was built and is operated to supply cooling water for an electric generating plant. Data regarding the dam are given in the following table:

                                                                              Elevation (feet)
Top of dam............................................................          467.0
Top of gates..........................................................          458.0
Crest of spillway (sill of tainter gates).............................          431.0

Water-quality records available from June 1994 to June 1995 were published separately as:

Site ID                Site name
324210096581601  Mountain Ck Lk Site McL-1K nr Grand Prairie, TX

EXTREMES FOR PERIOD OF RECORD - Maximum contents, 28,430 acre-ft, Mar. 13, 1995, elevation 458.82 ft; minimum contents, 14,120 acre-ft, Oct. 18, 1972, elevation, 453.25 ft; maximum elevation, 459.46 ft, May 29, 2015 and Sept. 22, 2018.