USGS Water-Year Summary 2022
02336240 SOUTH FORK PEACHTREE CREEK AT JOHNSON ROAD NEAR ATLANTA, GA
LOCATION - Lat 33°48'11.1", long 84°20'26.5" referenced to North American Datum of 1983, Dekalb County, GA, Hydrologic Unit 03130001, on downstream side of bridge on Johnson Road, 0.20 miles east of US 23, 0.8 miles downstream of Peavine Creek, and 2.8 miles upstream of confluence with Peachtree Creek.
DRAINAGE AREA - 27.6 mi². revised.
- WDR GA-2013: Drainage area.
PERIOD OF RECORD -
DISCHARGE: April 2003 to current year.
GAGE-HEIGHT: April 2003 to current year.
GAGE - Satellite telemetry with a water-stage recorder and a continuous water-quality monitor. Datum of gage is 829.58 feet above National Geodetic Vertical Datum (NGVD) of 1929 (USCOE benchmark).
COOPERATION - City of Atlanta.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 4,800 cfs, September 16, 2004, maximum gage-height recorded 16.10 feet, September 16, 2004; minimum daily discharge, 0.21 cfs, September 25, 2008.
PERIOD OF RECORD - April 2003 to current year.
INSTRUMENTATION - Tipping-bucket raingage.
PERIOD OF RECORD - August 2003 to current year.
PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: June 2003 to current year.
pH: June 2003 to current year.
WATER TEMPERATURE: June 2003 to current year.
DISSOLVED OXYGEN: June 2003 to current year.
TURBIDITY: June 2003 to current year.
INSTRUMENTATION - Satellite telemetry with a continuous water-quality monitor.
EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 587 microsiemens, January 22, 2018; minimum recorded, 13 microsiemens, September 17, 2020.
pH: Maximum recorded, 9.1 units, August 29, 2007; minimum recorded, 6.0 units, August 21, 2010 and October 24, 2020.
WATER TEMPERATURE: Maximum recorded, 32.4°C, July 1, 2012; minimum recorded, -0.1°C, January 18, 2018.
DISSOLVED OXYGEN: Maximum recorded, 16.1 mg/L, January 21, 2008; minimum recorded, 2.1 mg/L, April 12, 2004, August 24, 2007.
TURBIDITY: Maximum recorded, >2,200 FNU on several days; minimum recorded, <0.5 FNU on many days.