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Water-Year Summary for Site 02337170

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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
00010 Temperature, water(Max.,Min.,Mean)  
00045 Precipitation(Sum)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
02337170 CHATTAHOOCHEE RIVER NEAR FAIRBURN, GA
LOCATION - Lat 33°39'24", long 84°40'25" referenced to North American Datum of 1983, Fulton County, GA, Hydrologic Unit 03130002, on GA 74 and 92, 1.4 miles downstream from Deep Creek, 8.5 miles northwest of Fairburn, and at mile 281.8.
DRAINAGE AREA - 2,060 mi².
REVISIONS HISTORY - Discharge for the period Aug. 22, 2018, to Dec. 17, 2018, was revised on Feb. 28, 2019, based on changes to the stage-discharge rating.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: July 1965 to current year.
GAGE HEIGHT: October 1998 to current year.
GAGE - Satellite telemetry with a water-stage recorder and a continuous water-quality monitor. Datum of gage is 718.53 feet above the North American Vertical Datum (NAVD) of 1988 (leveling by Global Positioning System equipment).
COOPERATION - U.S. Army Corps of Engineers, Mobile District.
REMARKS - Gage-height records are generally good. 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.

Considerable diurnal fluctuation caused by operation of the Morgan Falls hydroelectric plant.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 63,900 cfs, September 22, 2009; maximum gage-height recorded, 30.65 feet, September 22, 2009; minimum daily discharge, 890 cfs, June 19, 2002.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - February 2001 to current year.
INSTRUMENTATION - Tipping-bucket raingage.
WATER-QUALITY RECORDS
PERIOD OF RECORD - July 1965 to March 1994, November 1994 to April 1999, May 2002, July 2003, June 2004, August 2007, September to November 2009.
PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: July 1976 to current year.
pH: July 1976 to current year.
WATER TEMPERATURE: August 1975 to current year.
DISSOLVED OXYGEN: July 1976 to current year.

COOPERATION - Georgia Department of Natural Resources, Environmental Protection Division.
INSTRUMENTATION - Satellite telemetry and a continuous water-quality monitor.
REMARKS -

For period 10/01/2018-09/30/2019: Specific Conductance, pH, Water Temperature, and Dissolved Oxygen are rated good.

For period 10/01/2019-02/07/2020:  Specific Conductance, pH, Water Temperature, and Dissolved Oxygen are rated good.

EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum recorded, 309 microsiemens, January 23, 2018; minimum recorded, 32 microsiemens, September 6, 2004.
pH: Maximum recorded, 8.2 units, May 14, 2018; minimum recorded, 5.5 units, August 12, 1978, September 13, 1978.
WATER TEMPERATURE: Maximum recorded, 34.0 °C, August 2, 1999; minimum recorded, 2.5 °C, January 12, 1982.
DISSOLVED OXYGEN: Maximum recorded, 13.4 mg/L, February 6, 2009; minimum recorded, 1.5 mg/L, July 1, 2023.