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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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USGS Water-Year Summary 2024
02342881 CHATTAHOOCHEE RIVER NEAR OMAHA, GA
LOCATION - Lat 32°08'26.4", long 85°02'57.8" referenced to North American Datum of 1983, Stewart County, GA, Hydrologic Unit 03130003, at bridge on GA 39 Spur, 0.4 mi downstream from Seaboard Coast Line Railroad bridge, 2.2 mi downstream from Hannahatchee Creek, 2.4 mi southwest of Omaha, and at mile 119.7.
DRAINAGE AREA - 5,910 mi². revised.
REVISIONS HISTORY - WDR GA-2013: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: September 2009 to current year.
GAGE-HEIGHT: September 2009 to current year.
WATER VELOCITY: September 2009 to current year.
DISCHARGE: September 2009 to current year.
GAGE-HEIGHT: September 2009 to current year.
WATER VELOCITY: September 2009 to current year.
GAGE - Satellite telemetry with a water-stage recorder and an acoustic velocity meter. Velocity data represents the average water velocity at the upstream cross-section of the bridge with positive values in the downstream direction. Datum of gage is North American Vertical Datum (NAVD) of 1988.
COOPERATION - Georgia Department of Natural Resources, Environmental Protection Division.
REMARKS - Gage-height records are generally good. Water velocity records are generally good. Discharge records are generally fair except for discharges below 3,000 cubic feet per second and 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.
Water velocity data represent water velocity at the downstream cross-section of the bridge with positive values in the downstream direction.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 115,000 cfs, December 25-26, 2015; maximum gage-height recorded, 196.48 feet, December 25, 2015; minimum daily discharge, -686 cfs, September 3, 2012.
WATER-QUALITY RECORDS
PERIOD OF RECORD - January 1997 to current year.
COOPERATION - Georgia Department of Natural Resources, Environmental Protection Division.
REMARKS - Analyzing agency is represented by the five-digit code listed under USGS Water Science Center special parameter code 99920. Laboratory analyses with analyzing agency code 81341 are by the Laboratory Services Section, Environmental Protection Division, Georgia Department of Natural Resources. Field determinations of Discharge, Specific Conductance, pH, Water Temperature, Air Temperature, and Dissolved Oxygen are by the U.S. Geological Survey.
