USGS Water-Year Summary 2024
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.
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.
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.