USGS Water-Year Summary 2020
02336030 NORTH FORK PEACHTREE CREEK AT GRAVES ROAD, NEAR DORAVILLE, GA
LOCATION - Lat 33°54'21", long 84°13'30" referenced to North American Datum of 1983, Gwinnett County, GA, Hydrologic Unit 03130001, at bridge at Graves Road, 0.3 miles east of Interstate 85.
DRAINAGE AREA - 1.53 mi². revised.
- WDR GA-2013: Drainage area.
PERIOD OF RECORD -
DISCHARGE: June 2001 to current year.
GAGE-HEIGHT: June 2001 to current year.
GAGE - Satellite telemetry with a water-stage recorder and a continuous water-quality monitor. Datum of gage is 950 feet above National Geodetic Vertical Datum (NGVD) of 1929 (from topographic map). Prior to December 2006, gage located 75 feet downstream at same datum.
COOPERATION - Gwinnett County Department of Water Resources.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,840 cfs, on basis of slope-area measurement of peak flow; September 21, 2009; maximum gage-height recorded 12.93 feet, September 21, 2009; minimum daily discharge, 0.05 cfs, estimated, August 23 and September 7, 2008.
PERIOD OF RECORD - June 2001 to September 2007. November 2008 to current year.
INSTRUMENTATION - Tipping-bucket raingage.
PERIOD OF RECORD - August 1976, June 2001 to current year.
PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: June 2001 to current year.
WATER TEMPERATURE: June 2001 to current year.
TURBIDITY: June 2001 to current year.
INSTRUMENTATION - Satellite telemetry with a continuous water-quality monitor and an refrigerated automatic sampler.
EXTREMES FOR PERIOD OF RECORD
SPECIFIC CONDUCTANCE: Maximum recorded, 1,590 microsiemens, January 6, 2017; minimum recorded, 5 microsiemens, July 12, 2019.
WATER TEMPERATURE: Maximum recorded, 30.8°C, August 5, 2008; minimum recorded, 1.2°C, January 24, 2003.
TURBIDITY: Maximum recorded, >2,200 FNU on several days; minimum recorded, < 0.5 FNU, June 18,19 and 22, 2020.