USGS Water-Year Summary for Site 0208062765

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

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

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USGS Water-Year Summary 2023

0208062765 ROANOKE RIVER AT HALIFAX, NC

LOCATION - Lat 36°19'52", long 77°34'49" referenced to North American Datum of 1983, Halifax County, NC, Hydrologic Unit 03010107, approximately 0.5 mi east of Halifax on private dirt road and 119 river mi from mouth.

DRAINAGE AREA - 8,450 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - November 1996 to current year. Records from November 1996 to September 1997 are unpublished and available from the USGS Water Science Center, Raleigh, NC.

GAGE - Water-stage recorder. Datum of gage is at National Geodetic Vertical Datum of 1929. Satellite telemetry at streamgage.

EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 47.24 ft, March 31, 1998; minimum elevation, 16.43 ft, December 8, 1997.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 1998 to current year.

PERIOD OF DAILY RECORD -

WATER TEMPERATURE: March 1998 to current year.
   
SPECIFIC CONDUCTANCE: March 1998 to current year.

DISSOLVED OXYGEN: March 1998 to current year.

DISSOLVED OXYGEN, PERCENT SATURATION: March 1998 to September 2015.

pH: March 1998 to current year.

INSTRUMENTATION - Water-quality monitor with satellite telemetry from March 1998 to current year.

REMARKS - Station operated to define water-quality characteristics in the Roanoke River Basin below Roanoke Rapids Dam. Dissolved oxygen, percent saturation, is computed using a barometric pressure of 760 mm Hg beginning October 1, 2000.

EXTREMES FOR PERIOD OF DAILY RECORD -

WATER TEMPERATURE: Maximum recorded, 31.9°C, July 29, 2011; minimum recorded, 0.8°C, January 7, 2018.

SPECIFIC CONDUCTANCE: Maximum recorded, 213 microsiemens, November 2, 2000; minimum recorded, 53 microsiemens, September 19, 2003.

DISSOLVED OXYGEN: Maximum recorded, 16.1 mg/L, January 13, 1999; minimum recorded, 3.8, August 21, 22, 2003.

DISSOLVED OXYGEN, PERCENT SATURATION: Maximum recorded, 132%, January 13, 14, 1999; minimum recorded, 47%, June 27, 2001, August 21, 2003.

pH: Maximum recorded, 8.7 standard units, March 12, 2004; minimum recorded, 6.1 standard units, September 16, 1999.