USGS Water-Year Summary for Site 08062500

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Max.,Min.,Mean)
	00065 Gage height(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)
	00400 pH(Max.,Min.)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

08062500 Trinity River near Rosser, TX

LOCATION - Lat 32°25'35", long 96°27'46" referenced to North American Datum of 1927, Ellis County, TX, Hydrologic Unit 12030105, at downstream side of bridge on State Highway 34, 2.5 mi south of Rosser, 8.5 mi downstream from East Fork Trinity River, and at mile 451.4.

DRAINAGE AREA - 8,147 mi².

REVISIONS HISTORY - WDR TX-77-1: 1942(M), drainage area. WDR TX-89-1: 1988. WDR TX-92-1: 1991.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Aug. 1924 to Sept. 1925, Nov. 1938 to current year. Monthly discharge only for some periods, published in WSP 1312. PERIOD OF DAILY RECORD, Atmospheric.-- PRECIPITATION DATA: Oct. 2001 to Sept. 2002.

GAGE - Water-stage recorder. Datum of gage is 297.65 ft above NGVD of 1929 and 297.95 ft above NAVD of 1988. Nov. 1938 to Sept. 1994 at present site and datum 5.00 ft higher. July 25, 1924, to Sept. 30, 1925, nonrecording gage at abandoned lock and dam No. 7, 1.7 mi upstream from present site at datum 11.94 ft higher. Satellite telemeter at station.

REMARKS - Some records listed in the "Period of Record" for surface water and water quality may not be available electronically. Since installation of gage in July 1924, at least 10% of contributing drainage area has been regulated. A levee system, constructed in 1916, extends several miles upstream and downstream from the station. At times flow may be affected by discharge from flood-water retarding structures controlling runoff from 76.7 mi² above this station.

EXTREMES OUTSIDE PERIOD OF RECORD - Flood in May 1908 reached a stage of about 38 ft (present site and datum), from information by U.S. Army Corps of Engineers. Discharge believed to have been about the same as that of Apr. 23, 1942.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Oct. 1954 to current year. BIOCHEMICAL DATA: Jan. 1968 to current year. PESTICIDE DATA: Jan. 1968 to July 1981. SEDIMENT DATA: Oct. 1963 to Sept. 1964, Apr. 1972 to Apr. 1975. Feb. 2012.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Oct. 1954 to current year. pH: Mar. 1977 to current year. WATER TEMPERATURE: Oct. 1954 to current year. DISSOLVED OXYGEN: Mar. 1977 to current year. TURBIDITY: Aug. 2014 to current year.

INSTRUMENTATION - Water-quality monitor since Mar. 1977.

REMARKS - Interruptions or periods of missing record may be due to instrument failure or data corrections exceeding allowable criteria, which were deleted. 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 - WATER TEMPERATURE: Maximum, 36.0°C, July 1, 1955; minimum, 1.0°C, on many days during winter months. SPECIFIC CONDUCTANCE: Maximum, 2,990 microsiemens/cm, Oct. 13, 1956; minimum, 122 microsiemens/cm, Sept. 30, 1981. pH: Maximum, 10.4 pH units, Feb. 27, 2022 and other days in WY 2022; minimum, 6.5 standard units, Apr. 12, 2002. DISSOLVED OXYGEN: Maximum, 14.5 mg/L, Jan. 25, 2014; minimum, 0.0 mg/L, on several days during 1979, 1980 and 1981. TUBIDITY: Maximum, 1740 NTU, Apr. 18, 2017; minimum, 1.0 FNU, Nov. 07, 2018 and other days in WY19.