USGS Water-Year Summary for Site 01627500

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

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USGS Water-Year Summary 2023

01627500 SOUTH RIVER AT HARRISTON, VA

LOCATION - Lat 38°13'07", long 78°50'13" referenced to North American Datum of 1927, Augusta County, VA, Hydrologic Unit 02070005, on left bank 200 ft downstream from bridge on State Highway 778, 0.3 mi northwest of Harriston, 0.6 mi downstream from Paine Run, and 7.2 mi upstream from confluence with North River.

DRAINAGE AREA - 212 mi².

REVISIONS HISTORY - WSP 1171: 1926(M), 1927-28, 1929-32(M), 1933, 1934(M), 1935, 1937. WSP 1302: 1937(M), 1938(M). WSP 2103: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - February 1925 to September 1951, October 1968 to current year.

GAGE - Water-stage recorder. Datum of gage is 1,129.15 (±0.1) ft above NAVD 88. Prior to Sept. 1, 1938, nonrecording gage at present site and datum.

COOPERATION - Records were provided by the Virginia Department of Environmental Quality - Water Division.

REMARKS - There are discharges from industrial and municipal wastewater treatment plants upstream from station, originating from well fields. Maximum discharge, 28,900 ft³/s, from rating curve extended above 10,000 ft³/s on basis of slope-area measurement at gage height 15.47 ft.

EXTREMES OUTSIDE PERIOD OF RECORD - Floods in 1870 and 1877 reached a stage of about 18.8 ft, from information by observer in 1925.

EXTREMES FOR PERIOD OF RECORD - Instantaneous low flow, 17 ft³/s, Nov. 14, 1941, probably result of regulation by mill then in existence upstream from station.

WATER-QUALITY RECORDS

PERIOD OF RECORD - June 2005 to September 2010.

PERIOD OF DAILY RECORD -
pH: June 2005 to July 2007.
SPECIFIC CONDUCTANCE: 1948 to 1949, June 2005 to July 2007, December 2007 to September 2008.
TURBIDITY: June 2005 to July 2007.
WATER TEMPERATURE: 1948 to 1949, June 2005 to July 2007, December 2007 to September 2010.

COOPERATION - Daily records were provided by the Virginia Department of Environmental Quality - Water Division.

INSTRUMENTATION - Electronic data logger with 15-minute recording interval. Water-quality monitor June 2005 to July 2007. Specific conductance and Water-temperature monitor December 2007 September 2008. Water temperature monitor December 2007 to September 2010.

EXTREMES FOR PERIOD OF DAILY RECORD -
pH: Maximum, 9.5 standard units, Feb. 25, 28, Mar. 1, 3-5, 2006; minimum, 6.6 standard units, Nov. 29, 2005.
SPECIFIC CONDUCTANCE: Maximum, 414 microseimens/cm, June 12, 2008; minimum, 16 microseimens/cm, Jan. 19, June 24, 25, 2006.
TURBIDITY: Maximum, 1,860 Formazin Nephelometric Units, Oct. 7, 2006; minimum, 0.0 Formazin Nephelometric Units, several days.
WATER TEMPERATURE: Maximum, 28.2°C, July. 24, 2010; minimum recorded, 0.0°C, Feb. 6, 2007.