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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.
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USGS Water-Year Summary 2024
023358685 SEWELL MILL CREEK AT GA 120 NEAR MARIETTA, GA
LOCATION - Lat 33°58'44.5", long 84°27'07.3" referenced to North American Datum of 1983, Cobb County, GA, Hydrologic Unit 03130001, on right bank downstream of culvert on Ga 120, 5.35 miles east of Marietta, 5.47 miles to mouth.
DRAINAGE AREA - 12.57 mi².
REVISIONS HISTORY - WDR GA-2009: 2008
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: April 2007 to current year.
GAGE HEIGHT: April 2007 to current year.
DISCHARGE: April 2007 to current year.
GAGE HEIGHT: April 2007 to current year.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 913.85 feet above North American Vertical Datum (NAVD) of 1988.
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, 4,570 cfs, September 21, 2009, by computation of peak flow through culvert; maximum gage-height recorded, 13.09 feet, September 21, 2009; minimum daily discharge, 0.06 cfs, September 24, 2008.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - May 2007 to September 2017.
INSTRUMENTATION - Tipping-bucket raingage.
