USGS Water-Year Summary 2024

02336635 NICKAJACK CREEK AT US 78 AND 278, NEAR MABLETON, GA

LOCATION - Lat 33°48'12", long 84°31'17" referenced to North American Datum of 1983, Cobb County, GA, Hydrologic Unit 03130002, on the left downstream side of bridge on US 78 and 278, 1.5 miles east of Mableton, and 1.2 miles above mouth.

DRAINAGE AREA - 31.5 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD -
DISCHARGE: October 1995 to current year.
GAGE HEIGHT: October 1995 to current year.

GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is about 748.17 feet above North American Vertical Datum (NAVD) of 1988. Prior to November 11, 1996, gage was located at a site 150 feet downstream on right bank at same datum.

COOPERATION - Cobb County Water System.

REMARKS - Gage-height records are generally fair. Discharge records are generally fair except for estimated discharges, which are poor. Additional details on the accuracy of the records can be obtained by contacting the USGS South Atlantic Water Science Center at gs-w-ga_nwisweb_data_inquiries@usgs.gov.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, not determined due to backwater from Chattahoochee River, September 21, 2009; maximum gage-height recorded, 19.85 feet, backwater from Chattahoochee River, September 22, 2009; minimum daily discharge, 1.3 cfs, estimated, September 25, 2012.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - December 2000 to October 2017.

INSTRUMENTATION - Tipping-bucket raingage.

WATER-QUALITY RECORDS

PERIOD OF RECORD - May 2006 to October 2017.

REMARKS - Laboratory chemical analyses are by the U.S. Geological Survey, National Water Quality Laboratory. Field determinations of discharge, specific conductance, pH, water temperature, turbidity, dissolved oxygen, and alkalinity are by the U.S. Geological Survey.