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Water-Year Summary for Site 02380500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00045 Precipitation(Sum)  
00060 Discharge(Mean)  
00065 Gage height(Max.,Min.,Mean)  

Water year 2020: 2019-10-01 to 2020-09-30
 

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USGS Water-Year Summary 2020
02380500 COOSAWATTEE RIVER NEAR ELLIJAY, GA
LOCATION - Lat 34°40'30", long 84°30'31" referenced to North American Datum of 1927, Gilmer County, GA, Hydrologic Unit 03150102, on right bank, 0.5 mi downstream from GA Route 5A, 2.5 mi downstream from confluence of Cartecay and Elijay Rivers, 7.5 mi upstream from confluence with Mountaintown Creek, and 2.0 mi southwest of Ellijay.
DRAINAGE AREA - 236 mi².
REVISIONS HISTORY - WDR GA-80-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: Occasional low-flow measurements 1959, 1961-62 water years. Annual peaks only 1951-1963. October 1938 to December 1949, June 1963 to current year.
GAGE HEIGHT: Occasional low-flow measurements 1959, 1961-62 water years. Annual peaks only 1951-1963. October 1998 to current year.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 1216.0 feet above North American Vertical Datum (NAVD) of 1988 (leveling by Global Navigation Satellite System equipment using GEOID12A). Prior to June 10, 1940, a non-recording gage was located at site 0.5 miles upstream at datum 8.04 feet higher.
COOPERATION - U.S. Army Corps of Engineers, Mobile District.
REMARKS -
For period 10/01/2013-09/30/2014: Discharge records good, except for days of estimated discharge, which are poor. Gage height records good.
For period 10/01/2014-09/30/2015: Discharge records good, except for days of estimated discharge, which are poor. Gage height records good.
For period 10/01/2015 - 09/30/2016: Discharge record fair, except for days of estimated discharge, which are poor. Gage height record good.
For period 10/01/2016 - 12/08/2016: Discharge record fair, except for days of estimated discharge, which are poor. Gage height record good.
For period 12/09/2016 - 10/11/2017: Discharge record fair, except for days of estimated discharge, which are poor. Gage height record good.
For period 10/12/2017 - 12/04/2017: Discharge record poor. Gage height record fair.
For period 12/05/2017 - 07/30/2018: Discharge record poor. Gage height record poor.
For period 07/30/2018 - 10/04/2018: Discharge record fair. Gage height record fair.
For period 10/05/2018 - 04/02/2019: Discharge record poor. Gage height record fair.
For period 04/03/2019 - 06/04/2019: Discharge record fair. Gage height record good.
For period 06/05/2019 - 08/13/2019: Discharge record good. Gage height record good.
For period 08/14/2019 - 12/10/2019: Discharge record fair. Gage height record good.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage known since at least 1938, 20.7 feet, March 19, 1951, from flood mark.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 17,000 cfs, October 4, 1964; maximum gage height recorded, 17.63 feet, October 4, 1964; minimum daily discharge, 48 cfs, October 3, 2007.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - May 2001 to current year.
INSTRUMENTATION - Tipping-bucket raingage.
WATER-QUALITY RECORDS
PERIOD OF RECORD - May 1941, May 1963 to September 1976, October 1977 to September 1984, January 1996 to December 1996, January 2002 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.