USGS Water-Year Summary for Site 02035000

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Med.)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Max.,Min.,Med.)
	00300 Dissolved oxygen(Max.,Min.,Med.)
	00400 pH(Max.,Min.,Med.)
	00650 Phosphate, wu(Max.,Min.,Med.)
	63680 Turbidity, Form Neph(Med.,Min.,Max.)
	99133 NO3+NO2,water,insitu(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

02035000 JAMES RIVER AT CARTERSVILLE, VA

LOCATION - Lat 37°40'15", long 78°05'10" referenced to North American Datum of 1927, Goochland County, VA, Hydrologic Unit 02080205, on downstream side of bridge on State Highway 45 at Cartersville, 1.8 mi downstream from Willis River, and at mile 156.4.

DRAINAGE AREA - 6,252 mi².

REVISIONS HISTORY - WSP 972: 1936(M). WSP 1203: 1901-2(M), 1923-25(M), 1928(M). OFR 2006-1308: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1898 to current year. Monthly discharge only for some periods, published in WSP 1303.

GAGE - Water-stage recorder. Datum of gage is 167.1 ft. NAVD of 1988. Prior to June 4, 1927, nonrecording gage at present site and datum.

REMARKS - Moderate diurnal fluctuation caused by powerplants upstream from station. Since 1982, low flows during summer months are augmented by releases from Lake Moomaw, station 02011795. National Weather Service gage-height telemeter at station. Maximum discharge, 362,000 ft³/s, from rating curve extended above 160,000 ft³/s on basis of slope-conveyance study.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 1930, 1948, 1967 to current year.

PERIOD OF DAILY RECORD -
DISSOLVED OXYGEN: April to September 2012.
NITRATE: July 2014 to current year.
pH: December 2003 to current year.
SPECIFIC CONDUCTANCE: April 1968 to January 1976, October 1980 to May 1981, October 1991 to September 1994, December 2003 to current year.
SUSPENDED SEDIMENT DISCHARGE: October 1980 to May 1981.
TURBIDITY: December 2003 to current year.
WATER TEMPERATURE: April 1968 to January 1976, October 1980 to May 1981, October 1991 to September 1994, December 2003 to current year.

INSTRUMENTATION - Water-quality and nitrate monitors. Electronic data logger with 15-minute recording interval.

EXTREMES FOR PERIOD OF DAILY RECORD -
DISSOLVED OXYGEN: Maximum, 15.3 mg/L on Jan. 11, 2015, but may have been higher during periods of missing record; minimum, 5.7 mg/L, Sept. 30, 2015, but may have been lower during periods of missing record.
NITRATE: Maximum: 0.66 mg/L as N, June 27, 2015, but may have been higher during periods of missing record; minimum: 0.03 mg/L as N, Aug. 30, Sept, 2, 3, 2016, but may have been lower during periods of missing record.
pH: Maximum, 9.9 standard units, Aug. 5, 2005, but may have been higher during periods of missing record; minimum, 6.5 standard units, June 17, 2004, but may have been lower during periods of missing record.
SPECIFIC CONDUCTANCE: Maximum, 459 microsiemens/cm, Oct. 8, 1970, but may have been higher during periods of missing record; minimum, 42 microsiemens/cm, May 9, 2008, but may have been lower during periods of missing record.
SUSPENDED SEDIMENT DISCHARGE: Maximum calculated, 24,700 tons/day, May 30, 1981; minimum calculated, 3.6 tons/day, Oct. 22, 1980.
TURBIDITY: Maximum, 900 FNU, Sept. 30, 2015, but may have been higher during periods of missing record; minimum, 0.0 FNU, on many days.
WATER TEMPERATURE: Maximum, 36.2°C, July 22, 2011, but may have been higher during periods of missing record; minimum, -0.5°C, Jan. 9, 1970, but may have been lower during periods of missing record.