USGS Water-Year Summary 2023
02334885 SUWANEE CREEK AT SUWANEE, GA
LOCATION - Lat 34°01'57", long 84°05'20" referenced to North American Datum of 1983, Gwinnett County, GA, Hydrologic Unit 03130001, 20.0 feet upstream of US 23 bridge, 1.7 miles southwest of Suwanee, 3.1 miles upstream of the Chattahoochee River, 0.2 miles upstream of Bennett Creek, and 0.65 miles downstream of Mill Creek.
DRAINAGE AREA - 47.1 mi².
REVISIONS HISTORY - Discharge for the period Mar. 7, 2018, to Oct. 2, 2018, was revised on Jun. 19, 2019, based on changes to the stage-discharge rating.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: October 1984 to current year.
GAGE-HEIGHT: October 1998 to current year.
GAGE - Satellite telemetry with a water-stage recorder and a continuous water-quality monitor. Datum of gage is 909.9 feet above North American Vertical Datum (NAVD) of 1988 (leveling by Global Positioning System equipment).
COOPERATION - Atlanta Regional Commission, Gwinnett County Department of Water Resources.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 7,870 cfs, September 21, 2009; maximum gage-height recorded, 14.30 feet, September 21, 2009; minimum daily discharge, 1.0 cfs, July 20, 1988.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - February 2001 to current year.
INSTRUMENTATION - Tipping-bucket raingage.
WATER-QUALITY RECORDS
PERIOD OF RECORD - February 2001 to current year.
PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: February 2001 to current year.
WATER TEMPERATURE: February 2001 to current year.
TURBIDITY: February 2001 to current year.
INSTRUMENTATION - Satellite telemetry with a continuous water-quality monitor and an automatic refrigerated sampler.
EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 415 microsiemens, August 24, 2007; minimum recorded, 21 microsiemens, August 29, 2023.
WATER TEMPERATURE: Maximum recorded, 27.8 °C, July 30, 2011; minimum recorded, 0.5 °C, January 8, 2014, January 6, 2018.
TURBIDITY: Maximum recorded, >2,200 FNU, July 10, 2003; minimum recorded, 1.0 FNU, January 21, 2014.