USGS Water-Year Summary for Site 02223500

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

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

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USGS Water-Year Summary 2023

02223500 OCONEE RIVER AT DUBLIN, GA

LOCATION - Lat 32°32'38.2", long 82°53'34.7" referenced to North American Datum of 1983, Laurens County, GA, Hydrologic Unit 03070102, near left bank on downstream end of pier of bridge on US Highway 80 at Dublin, and at mile 74.3.

DRAINAGE AREA - 4,400 mi².

REVISIONS HISTORY - WSP 822: Drainage area. WSP 1504: 1898-1903, 1905-6, 1908-9, 1912, 1913(M), 1925(M).

SURFACE-WATER RECORDS

PERIOD OF RECORD -
DISCHARGE: October 1897 to current year.
GAGE HEIGHT: October 1998 to current year. Gage height records collected at same site since 1893 are contained in reports of National Weather Service.

GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 149.08 feet above National Geodetic Vertical Datum (NGVD) of 1929. Prior to April 14, 1932, a non-recording gage was installed, and from April 15, 1932, to June 17, 1934, a water-stage recorder was located at a site 420 feet downstream at datum 3.0 feet higher. From October 1, 1933, to July 17, 1934 recorded data are corrected to present datum. From July 18, 1934, to April 14, 1936, a water-stage recorder and from April 15, 1936, to October 12, 1938, a non-recording gage, and from October 13, 1938 to January 20, 1953, a water-stage recorder was located at a site 80 feet upstream at present datum.

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 OUTSIDE PERIOD OF RECORD - Maximum stage known since at least 1893, that of April 12-13, 1936.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 85,000 cfs, March 11, 1998; maximum gage height recorded, 32.00 feet, March 11, 1998; minimum daily discharge, 272 cfs, September 17, 2011.

EXTREMES FOR PERIOD PRIOR TO REGULATION - Maximum discharge recorded, 97,700 cfs, April 12, 13, 1936; maximum gage-height recorded, 32.97 feet, April 12, 13, 1936; minimum daily discharge, 350 cfs, September 11, 1951.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - May 2001 to October 2017.

INSTRUMENTATION - Tipping-bucket rain gage.