USGS Water-Year Summary for Site 08070200

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	Available Parameters
	00010 Temperature, water(Mean,Min.,Max.)
	00060 Discharge(Max.,Mean,Min.)
	00065 Gage height(Min.,Max.,Mean)
	00095 Specific cond at 25C(Min.,Max.,Mean)
	00300 Dissolved oxygen(Min.,Mean,Max.)
	00400 pH(Min.,Max.)
	63680 Turbidity, Form Neph(Mean,Min.,Max.)

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

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USGS Water-Year Summary 2023

08070200 East Fork San Jacinto River near New Caney, TX

LOCATION - Lat 30°08'43", long 95°07'27" referenced to North American Datum of 1927, Montgomery County, TX, Hydrologic Unit 12040103, on right bank at downstream side of bridge on Farm Road 1485, 1.0 mi upstream from Church House Gully, 5.5 mi east of New Caney, and 5.9 mi upstream from Caney Creek.

DRAINAGE AREA - 388 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Oct. 1952 to Sept. 1958, Oct. 1969 to Sept. 1976 and Oct. 1983 to Apr. 1984 (occasional low-flow measurements), May 1984 to current year.

GAGE - Water-stage recorder. Datum of gage is NAVD 1988, 2001 adjustment. Prior to Oct. 1, 2016 datum of gage was 43.98 ft above NGVD 1929 (43.00 ft above current datum). Radio telemeter at station. Satellite telemeter at station.

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

EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 1973 reached a stage of 29.6 ft, from floodmark on left bank, identified by local resident. Flood in Nov. 1940 may have been slightly higher.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Aug. 1983 to Sept. 2004, Dec. 2005 to current. BIOCHEMICAL DATA: Aug. 1983 to Sept. 2004, Dec. 2005 to current. PESTICIDE DATA: Aug. 1985 to Sept. 1990, June 2000 to Sept. 2004, Dec. 2005 to current. SEDIMENT DATA: June 2000, Dec. 2005 to current.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: June 1984 to Sept. 1999, Nov. 2005 to current. pH: Nov. 2005 to current. WATER TEMPERATURE: June 1984 to Sept. 1999, Nov. 2005 to current. DISSOLVED OXYGEN: Nov. 2005 to current. TURBIDITY: Nov. 2005 to current.

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 - 10SPECIFIC CONDUCTANCE: Maximum, 870 microsiemens/cm, May 7, 1985; minimum, 19 microsiemens/cm, Nov. 17, 1992. pH: Maximum, 8.4 standard units, July 25, 2013; minimum, 5.3 standard units, Sept. 13,14, 2008. WATER TEMPERATURE: Maximum, 32.8 °C, Aug. 3, 2011; minimum, 1.0 °C, Dec. 24, 1989. DISSOLVED OXYGEN: Maximum, 13.0 mg/L, Jan. 18, 2006; minimum, 0.2 mg/L, July 27,28, 2010. TURBIDITY: Maximum, 1,330 FNU, Sept. 12, 2014, Mar. 4, 2010; minimum, 1.8 FNU, July 3, 2012.