USGS Water-Year Summary for Site 02198980

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00045 Precipitation(Sum)
	00060 Discharge(Tid.,Tid.)
	00065 Gage height(Tid.,Tid.)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00480 Salinity(Max.,Min.,Med.)

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

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USGS Water-Year Summary 2023

02198980 SAVANNAH RIVER AT FORT PULASKI, GA

LOCATION - Lat 32°02'08.9", long 80°54'21.8" referenced to North American Datum of 1983, Chatham County, GA, Hydrologic Unit 03060109, at downstream side of the U.S. Coast Guard pier on Cockspur Island, 1.0 mile upstream from the mouth, 0.7 miles west of Fort Pulaski.

DRAINAGE AREA - Indeterminate.

SURFACE-WATER RECORDS

PERIOD OF RECORD -
DISCHARGE: June 2009 to current year.
GAGE HEIGHT: October 1987 to current year.
WATER VELOCITY: June 2009 to current year.

GAGE - Satellite telemetry with a water-stage recorder and an acoustic velocity meter. Datum of gage is North American Vertical Datum (NAVD) of 1988. From October 1, 2001 to September 30, 2007, datum of gage was referenced to National Geodetic Vertical Datum (NGVD) of 1929. Prior to October 1, 2001, gage datum was 3.02 feet below NGVD of 1929.

COOPERATION - Georgia Department of Natural Resources, Environmental Protection Division.

REMARKS - Gage-height records are generally fair. Water velocity records are generally fair. Discharge records are generally fair. 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.

Streamflow at this site is affected significantly by astronomical tides. By convention, the U.S. Geological Survey has established ebb (seaward) flows as positive flows and flood (landward) flows as negative flows.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 514,000 cfs, January 11, 2016; maximum gage height, 6.27 feet, October 27, 2015; minimum gage height recorded, -7.38 feet, January 3, 2014.

Extremes have been adjusted to NAVD of 1988.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - January 2002 to current year.

INSTRUMENTATION - Tipping-bucket raingage.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: October 2014 to current year.
WATER TEMPERATURE: October 2014 to current year.

COOPERATION - U.S. Army Corps of Engineers, Savannah District.

INSTRUMENTATION - Satellite telemetry with a continuous water-quality monitor.

REMARKS -
For period: 10/01/2014-11/13/2017: Specific Conductance and Water Temperature records are rated fair.

EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum recorded, 61,500 microsiemens, January 12, 2014; minimum recorded, 7,180 microsiemens, January 11, 2016.

WATER TEMPERATURE: Maximum recorded, 31.6°C, July 24, 2016; minimum recorded, 5.3°C; January 7-8, 2018.

SALINITY: Maximum computed, 41.4 parts-per-thousand, January 12, 2014; minimum computed, 3.9 parts-per-thousand, January 11, 2016.