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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.
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USGS Water-Year Summary 2024
02336986 OLLEY CREEK @ CLAY RD, NEAR AUSTELL, GA
LOCATION - Lat 33°50'10.2", long 84°37'53.2" referenced to North American Datum of 1983, Cobb County, GA, Hydrologic Unit 03130002, on downstream side of bridge on Clay Road, 15.1 miles from confluence with Chattahoochee River, and 1.44 miles north of Austell.
DRAINAGE AREA - 13.5 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: March 2007 to current water year.
GAGE HEIGHT: March 2007 to current water year.
DISCHARGE: March 2007 to current water year.
GAGE HEIGHT: March 2007 to current water year.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 878.57 feet above North American Vertical Datum (NAVD) of 1988 (leveling by Global Positioning System equipment).
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 recorded, not determined due to backwater from Sweetwater Creek, September 21, 2009; Maximum gage-height recorded, 27.39 feet, backwater from Sweetwater Creek, September 22, 2009; minimum daily discharge, 0.11 cfs, estimated, August 31, 2011.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - March 2007 to October 2017.
INSTRUMENTATION - Tipping-bucket raingage.
