USGS Water-Year Summary for Site 02226160

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	Available Parameters
	00060 Discharge(Max.,Min.)
	00065 Gage height(Max.,Min.)

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

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USGS Water-Year Summary 2023

02226160 ALTAMAHA RIVER NEAR EVERETT CITY, GA.

LOCATION - Lat 31°25'36.7", long 81°36'18.4" referenced to North American Datum of 1983, Glynn County, GA, Hydrologic Unit 03070106, at Altamaha Park, 3 miles northeast of Everett City, and 15 miles northwest of Brunswick.

DRAINAGE AREA - 14,000 mi². approximately.

REVISIONS HISTORY - WDR-GA-2012: 2008-2011.

SURFACE-WATER RECORDS

PERIOD OF RECORD -
DISCHARGE: February 2008 to current year.
GAGE-HEIGHT: February 2008 to current year.
WATER VELOCITY: February 2008 to current year.

GAGE - Satellite telemetry with a water-stage recorder and an acoustic velocity meter. Datum of gage is 3.87 feet below the North American Vertical Datum (NAVD) of 1988. Velocity data represents the average water velocity at the upstream cross-section of the bridge with positive values in the downstream direction.

COOPERATION - USGS National Stream Quality and Accounting Network Program (NASQAN).

REMARKS - Gage-height records are generally good. Water velocity 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, 115,000 cfs, April 13, 2009; maximum gage-height recorded, 16.76 feet, April 13, 2009.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - March 2008 to September 2012.

INSTRUMENTATION - Tipping-bucket raingage.

WATER-QUALITY RECORDS

PERIOD OF RECORD - October 1969 to current year.

PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: October 1969 to February 1986.

pH: October 1969 to February 1986.

WATER TEMPERATURE: October 1969 to February 1986.

DISSOLVED OXYGEN: October 1969 to February 1986.

COOPERATION - US Geological Survey, National Stream-quality Accounting Network (NASQAN) from October 1977 to current year. Georgia Department of Natural Resources, Environmental Protection Division from October 1969 to February 1995.

INSTRUMENTATION - From October 1969 to February 1986, U.S. Geological Survey flow-through water-quality monitoring system.

REMARKS - Laboratory chemical analyses are by the U.S. Geological Survey, National Water Quality Laboratory. Historical laboratory chemical analyses with analyzing agency code 81341 are by the Environmental Protection Division, Georgia Department of Natural Resources. Field determinations of Discharge, Specific Conductance, pH, Water Temperature, Dissolved Oxygen, and Alkalinity are by the U.S. Geological Survey. The stream is sampled by boat approximately 1/4 mile upstream of railroad trestle at all stages.

EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum recorded, 321 microsiemens, October 7, 1981; minimum recorded, 32 microsiemens April 9, 1973.

pH: Maximum recorded, 8.9 units October 21, 22, 1971; minimum recorded, 5.3 units, December 12, 1976.

WATER TEMPERATURE: Maximum recorded, 33.5°C July 16, 17, 18, 1981; minimum recorded, 3.0°C, January 10, 11, 1970, January 20, 21, 1977.

DISSOLVED OXYGEN: Maximum recorded, 12.5 mg/L January 28, 1985; minimum recorded, 2.7 mg/L October 8, 1977.