USGS Water-Year Summary for Site 02223056

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00045 Precipitation(Sum)
	00045 Precipitation(Sum) [Operational]
	00060 Discharge(Mean)
	00065 Gage height(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

02223056 OCONEE RIVER AT AVANT MINE, NEAR OCONEE, GA

LOCATION - Lat 32°56'21.6", long 83°04'01.1" referenced to North American Datum of 1983, Washington County, GA, Hydrologic Unit 03070102, on left bank, 1.1 miles downstream from Gumm Creek, 1.6 miles upstream from Bluff Creek, and 8.8 miles Northwest of Oconee, GA.

DRAINAGE AREA - 3,169 mi².

REVISIONS HISTORY - WDR GA-2006: 2004-2005.

SURFACE-WATER RECORDS

PERIOD OF RECORD -
DISCHARGE: November 1992 to September 2001, discharges less than 8,800 cfs only. October 2001 to current year, discharges less than 11,200 cfs only.
GAGE HEIGHT: October 1998 to current year.

GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 202.8 feet above North American Vertical Datum (NAVD) of 1988 (levels by Georgia Power Company).

COOPERATION - Georgia Power Corporation.

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.

Flow regulated by Lake Oconee and Sinclair Reservoir.

EXTREMES FOR PERIOD OF RECORD - Maximum gage-height recorded, 19.97 feet, December 23, 2015; minimum daily discharge recorded, 236 cfs, August 11, 2008.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - May 2001 to October 2017.

INSTRUMENTATION - Tipping-bucket raingage.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD -
WATER TEMPERATURE: November 2013 to October 2017.

INSTRUMENTATION - Satellite telemetry with a continuous water temperature thermistor.

REMARKS -
For period 10/01/2013-09/30/2017: Water Temperature records good.

EXTREMES FOR PERIOD OF DAILY RECORD -
WATER TEMPERATURE: Maximum recorded, 30.9°C, August 23, 2014; minimum recorded, 6.7°C, January 30, 2014.