USGS Water-Year Summary for Site 08057055

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)
	00400 pH(Max.,Min.,Mean)
	63680 Turbidity, Form Neph(Max.,Mean,Min.)

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

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USGS Water-Year Summary 2023

08057055 Trinity River at Cedar Crest Boulevard, Dallas, TX

LOCATION - Lat 32°45'07.69", long 96°46'57.19" referenced to North American Datum of 1983, Dallas County, TX, Hydrologic Unit 12030105, on downstream side of bridge, 1.8 mi southeast of Dallas City Hall, 2.3 mi downstream from Coombs Creek, and 2.9 mi downstream from Commerce Street Bridge.

DRAINAGE AREA - 6,132 mi².

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Feb. 1984 to Sept. 1993. BIOCHEMICAL DATA: Feb. 1984 to Sept. 1993. SEDIMENT DATA: May 2011 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Feb. 1984 to current year. pH: Feb. 1984 to current year. WATER TEMPERATURE: Feb. 1984 to current year. DISSOLVED OXYGEN: Feb. 1984 to current year. TURBIDITY: Oct. 2010 to current year.

INSTRUMENTATION - Water-quality monitor since Feb. 1984.

REMARKS - Water year 2014 records for temperature and specific conductance records are excellent. Dissolved oxygen and pH records are good. Turbidity record is poor. Discharge records are available for Trinity River at Dallas (station 08057000), 2.7 mi upstream. There is no appreciable inflow between the two stations. 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. Mean monthly and annual concentrations and loads for selected chemical constituents have been computed for previous years using the daily records of specific conductance and a regression relation between each chemical constituent and specific conductance. Regression equations developed for this station may be obtained from the U.S. Geological Survey Texas Water Science Center; Austin, Texas upon request.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum, 1,070 microsiemens/cm, Mar. 4, 2007; minimum, 93 microsiemens/cm, Oct. 20, 1984. pH: Maximum, 9.0 standard units, June 27, 2000; minimum, 5.3 standard units, Feb. 1, 2002. WATER TEMPERATURE: Maximum, 33.5°C, Aug. 12, 1987; minimum, 4.1°C, Dec. 27, 2000. DISSOLVED OXYGEN: Maximum, 14.0 mg/L, Feb. 27, 2003; minimum, 0.0 mg/L, July 21, 1985. TURBIDITY: Maximum, 1,230 FNU, July 17, 2014; minimum, 0.5 FNU, Aug. 7, 2014.