USGS Water-Year Summary for Site 08211200

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean,Max.,Min.)
	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: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

08211200 Nueces River at Bluntzer, TX

LOCATION - Lat 27°56'15", long 97°46'32" referenced to North American Datum of 1927, Nueces County, TX, Hydrologic Unit 12110111, on right bank, at downstream end of bridge on Farm Road 666, 1.2 mi south of San Patricio, 5.5 mi upstream from Cayamon Creek, and 10.3 mi northwest of Calallen.

DRAINAGE AREA - 16,611 mi².

REVISIONS HISTORY - WDR US-2007: Drainage Area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - Jan. 1966 to Feb. 1967, Mar. 1992 to current year (daily mean discharges less than 2,950 ft³/s). Prior to Oct. 1994, published as "above Calallen".

GAGE - Water-stage recorder. Datum of gage is NAV88 above -0.313 ft done by RTK on Oct. 4, 2023. Prior datum of gage was NGVD of 1929. Prior to Mar. 27, 1992, at same site at datum 6.04 ft higher. Satellite telemeter at station.

REMARKS - Water Year record is rated good. Since installation of gage in Jan. 1966, at least 10% of contributing drainage area has been regulated. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.

EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 32.22 ft, Sept. 16, 2002; no flow at times.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Feb. 1966 to Mar. 2008. BIOCHEMICAL DATA: Feb. 1966. SEDIMENT DATA: May 2006 to July 2007.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Nov. 2008 to current year. pH: Nov. 2008 to current year. WATER TEMPERATURE: Nov. 2008 to current year. DISSOLVED OXYGEN: Nov. 2008 to current year. TURBIDITY: Mar 2011 to current year.

INSTRUMENTATION - A 4-parameter continuous water-quality monitor since Nov. 2008. Turbidity added in 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.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum, 1,500 microsiemens/cm, Jan. 29, 2010; minimum, 100 microsiemens/cm, Nov. 20, 2009. pH: Maximum, 8.9 standard units, Jan 03-07, 2014; minimum, 7.1 standard units, July 5, 6, 2010. WATER TEMPERATURE: Maximum, 33.1°C, Aug. 7, 2010; minimum, 6.2°C, Jan. 10, 2010. DISSOLVED OXYGEN: Maximum, 12.6 mg/L, Jan. 07, 2014; minimum, 2.2 mg/L, Sept. 14, 2009. TURBIDITY: Maximum, 1200 FNU Mar 30, 31, 2011; minimum, 6.3 FNU, No Feb 4, 2011.