USGS Water-Year Summary for Site 08127000

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	Available Parameters
	00060 Discharge(Mean,Max.,Min.)
	00065 Gage height(Mean)

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

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USGS Water-Year Summary 2023

08127000 Elm Creek at Ballinger, TX

LOCATION - Lat 31°44'57", long 99°56'51" referenced to North American Datum of 1927, Runnels County, TX, Hydrologic Unit 12090101, 5 ft upstream and 40 ft to the right of the storage dam at Ballinger and 1.9 mi upstream from mouth.

DRAINAGE AREA - 450 mi². of which 63.5 mi² is above Lake Winters Dam.

REVISIONS HISTORY - WSP 1442: 1935, 1946, 1954. WDR TX-81-3: Drainage area. WDR TX-96-3.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Apr. 1932 to current year.

GAGE - Water-stage recorder and concrete control. Datum of gage is 1,617.79ft above NAVD88 as determined by GNSS survey. Prior to February 13, 2023, the datum of gage was 1,617.72ft above NGVD of 1929. Satellite telemeter at station.

COOPERATION - Colorado River Municipal Water District (CRMWD), Texas Water Development Board (TWDB), and the U.S. Geological Survey (USGS)

REMARKS - No flow at times most years. Some records listed in the period of record may not be available electronically.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood in Aug. 1906 reached a stage of 14.5 ft, affected by backwater from Colorado River.

EXTREMES FOR PERIOD PRIOR TO REGULATION - WATER YEARS 1933-1982: Maximum discharge, 50,000 ft³/s, Oct. 13, 1957, gage height, 14.20 ft, from floodmark; no flow at times. Highest stage not affected by backwater from the Colorado River since at least 1904, was that of Oct. 13, 1957, from information by local residents.

AVERAGE DISCHARGE FOR PERIOD PRIOR TO REGULATION - 50 years (water years 1933-82) prior to completion of New Lake Winters, 47.6 ft³/s (34,490 acre-ft/yr).

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Oct. 1957 to Sept. 1991, Mar. 2001 to May 2003.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Oct. 1967 to Sept. 1991 (local observer), Feb. 2001 to Oct. 26, 2011. (discontinued). WATER TEMPERATURE: Oct. 1967 to Sept. 1991 (local observer), Feb. 2001 to Oct. 26, 2011. (discontinued).

INSTRUMENTATION - A continuous two parameter water-quality instrument from Feb. 9, 2001 to Oct. 26, 2011.

REMARKS - Interruptions or periods of missing record may be due to instrument failure, no flow conditions or data corrections exceeding allowable criteria, which were deleted. Other than no flow conditions, minimum and maximum extremes may have occurred during period of missing record. Some records listed in the period of record may not be available electronically.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum daily, 4,760 microsiemens/cm, Sept. 09, 2007; minimum, 74 microsiemens/cm, July 4, 2002. WATER TEMPERATURE: Maximum daily, 35.0°C, July 19, 1986; minimum daily, 0.0°C, Jan. 8, 1968, Jan. 10, 13, 1973, and Jan. 11, 14, 1982.