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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.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
02204520 SOUTH RIVER AT GA 81, AT SNAPPING SHOALS, GA
LOCATION - Lat 33°29'04.5", long 83°57'28.7" referenced to North American Datum of 1983, Newton County, GA, Hydrologic Unit 03070103, 2.2 miles east of Snapping Shoals, GA.
DRAINAGE AREA - 468 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: May 2010 to current year.
GAGE HEIGHT: June 2009 to current year.
WATER VELOCITY: May 2010 to March 2021.
DISCHARGE: May 2010 to current year.
GAGE HEIGHT: June 2009 to current year.
WATER VELOCITY: May 2010 to March 2021.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 557.27 feet above North American Vertical Datum (NAVD) of 1988 (from GNSS survey).
COOPERATION - Georgia Department of Natural Resources, Environmental Protection Division.
REMARKS - Gage-height records are generally fair. Discharge records are generally 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 recorded, 23,700 cfs, April 20, 2019; maximum gage height recorded, 14.85 feet, April 20, 2019; minimum daily discharge, 64 cfs, September 27, 2012.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - September 2009 to September 2017.
INSTRUMENTATION - Tipping-bucket raingage.
WATER-QUALITY RECORDS
PERIOD OF RECORD - August 1970 to December 1999, February 2020 to current year.
COOPERATION - Georgia Department of Natural Resources, Environmental Protection Division, Watershed Protection Branch.
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.
