USGS Water-Year Summary for Site 08068400

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	Available Parameters
	00010 Temperature, water(Mean,Min.,Max.)
	00060 Discharge(Max.,Mean,Min.)
	00065 Gage height(Max.,Min.,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 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

08068400 Panther Branch at Gosling Road, The Woodlands, TX

LOCATION - Lat 30°11'31", long 95°29'01" referenced to North American Datum of 1927, Montgomery County, TX, Hydrologic Unit 12040102, on the right downstream bank of the northbound lane of Gosling Road and 0.5 mi north of Research Forest Blvd.

DRAINAGE AREA - 25.9 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Aug. 1974 to Sept. 1976 (daily mean discharge), May 1980 to Sept. 1988 (annual maximum), Jan. 1999 to current year (daily mean discharge). Prior to Jan. 1999, published as "near Conroe".

GAGE - Water-stage recorder. Datum of gage is NAVD 1988. Prior to Oct. 1, 2010, datum of gage was 125.25 ft above NGVD of 1929 (124.43 ft above current datum). Satellite telemeter at station.

REMARKS - No known regulation or diversions. No flow at times. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Mar. 1974 to Sept. 1975, Mar. 1999 to Nov. 1999. BIOCHEMICAL DATA: Mar. 1974 to Sept. 1975, Mar. 1999 to Nov. 1999. PESTICIDE DATA: Mar. 1974 to Sept. 1975, Mar. 1999 to Nov. 1999. SEDIMENT DATA: Mar. 1999 to Nov. 1999.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Mar. 1999 to October 2015 pH: Mar. 1999 to October 2015 WATER TEMPERATURE: Mar. 1999 to October 2015. DISSOLVED OXYGEN: Mar. 1999 to October 2015.

INSTRUMENTATION - Water-quality monitor Mar. 1999 to Oct. 2015.

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" for surface water and water quality may not be available electronically.

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum, 1,550 microsiemens/cm, May 4, 1999; minimum, 29 microsiemens/cm, June 10, 2001. pH: Maximum, 9.2 standard units, Sept. 1, 2000, July 17, 2014; minimum, 6.2 standard units, Aug. 22, 23, 2002, June 19-20, 2007, Aug. 29, 2007, May 7, 2009, Feb. 8, 9, 12, 13, 2010. WATER TEMPERATURE: Maximum, 32.9°C, July 31, 2011; minimum, 5.9°C, Jan. 20, 2001. DISSOLVED OXYGEN: Maximum, 12.5 mg/L, May 31, 2003; minimum, 0.0 mg/L, Aug. 28, 29, Sept. 12, 2000, Apr. 10,12, 2011.