USGS Water-Year Summary for Site 02172040

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00065 Gage height(Max.,Mean,Min.)
	00095 Specific cond at 25C(Mean,Min.,Max.)
	72137 Discharge,tide fltrd(Max.,Min.,Mean)
	72255 Mean water velocity(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

02172040 BACK RIVER AT DUPONT INTAKE NEAR KITTREDGE, SC

LOCATION - Lat 33°03'25.1", long 79°57'30.5" referenced to North American Datum of 1983, Berkeley County, SC, Hydrologic Unit 03050201, on upstream south side of bridge crossing Durham canal located on Secondary Road 9, and at mi 1.7. (revised)

SURFACE-WATER RECORDS

PERIOD OF RECORD -

Gage Height: October 1990 to current year. Records prior to October 1990 are in the files of the U.S. Geological Survey.

Discharge: September 2013 to current year.

GAGE - Data collection platform and Acoustic Velocity Meter. Datum of gage is 15.15 ft below NAVD of 1988 datum.

REMARKS - Gage-height records are generally good to fair. Discharge records are generally good to fair. Additional details on the accuracy of the records can be obtained by contacting the USGS South Atlantic Water Science Center at gs-w-sc_nwisweb_data_inquiries@usgs.gov.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, unknown, Maximum gage height 21.68 ft, Oct. 4, 2015; minimum discharge, -7,270 ft³/s, February 20, 2019, minimum gage height, 11.92 ft, Mar. 14, 1993.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 1981 to current year.

PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: October 1980 to current year.
pH: February 1981 to September 1993 (discontinued).
WATER TEMPERATURE: February 1981 to current year.
DISSOLVED OXYGEN: February 1981 to September 1993 (discontinued).

INSTRUMENTATION - Water-quality multiprobe and data collection platform.

REMARKS -
For 2014 water year, specific conductance records rated excellent. For 2014 water year, temperature records are rated excellent. For 2015 water year, specific conductance records rated excellent, except for Jul. 16-Sep. 30, which are rated good. For 2015 water year, temperature records are rated excellent. For 2016 water year, specific conductance records rated excellent, except for Jul. 21-Aug. 24, which are rated good. For 2016 water year, temperature records are rated excellent.

EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum, 609 microsiemens/cm, Oct. 21, 1991; minimum, 37 microsiemens/cm Oct. 5, 2015.
WATER TEMPERATURE: Maximum, 33.0°C, July 20, 1986; minimum, 1.5°C, Dec. 26, 1989.