USGS Water-Year Summary for Site 02336120

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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.)
	63680 Turbidity, Form Neph(Max.,Med.,Min.)

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Water year 2022: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2022

02336120 NORTH FORK PEACHTREE CREEK AT BUFORD HIGHWAY NEAR ATLANTA, GA

LOCATION - Lat 33°49'53", long 84°20'34" referenced to North American Datum of 1927, Dekalb County, GA, Hydrologic Unit 03130001, downstream side of bridge on GA 13, 4.1 miles south of the junction of US 23 and GA 155, 2.1 miles north of the confluence of the Peachtree Creek.

DRAINAGE AREA - 34.8 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - DISCHARGE: May 2003 to current year. GAGE-HEIGHT: May 2003 to current year.

GAGE - Satellite telemetry with a water-stage recorder and a continuous water-quality monitor. Datum of gage is 806.9 feet above North American Vertical Datum (NAVD) of 1988 (leveling by Global Navigation Satellite System equipment using GEOID12A).

COOPERATION - City of Atlanta.

REMARKS -
For period 10/01/2013-09/30/2014: Discharge record fair, except for days of estimated discharge, which are poor. Gage-height record good.
For period 10/01/2014-09/30/2015: Discharge record fair, except for days of estimated discharge, which are poor. Gage-height record good.
For period 10/01/2015-09/30/2016: Discharge record fair, except for days of estimated discharge, which are poor. Gage-height record good.
For period 10/01/2016-09/30/2017: Discharge record fair, except for days of estimated discharge, which are poor. Gage-height record good.
For period 10/01/2017-09/30/2018: Discharge record fair, except for days of estimated discharge, which are poor. Gage-height record good.
For period 10/01/2018-09/30/2019: Discharge record fair. Gage-height record good.
For period 10/01/2019-09/30/2020: Discharge record fair, except for days of estimated discharge, which are poor. Gage-height record good.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 6,140 cfs, September 21, 2009; maximum gage-height recorded, 18.57 feet, September 21, 2009; minimum daily discharge, 0.73 cfs, September 7, 2008.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - May 2003 to current year.

INSTRUMENTATION - Tipping-bucket raingage.

WATER-QUALITY RECORDS

PERIOD OF RECORD - February 1976 to August 1977, August 2003 to current year.

PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: June 2003 to current year.
pH: June 2003 to current year.
WATER TEMPERATURE: June 2003 to current year.
DISSOLVED OXYGEN: June 2003 to current year.
TURBIDITY: June 2003 to current year.

INSTRUMENTATION - Satellite telemetry with a continuous water-quality monitor and an automatic refrigerated sampler.

REMARKS -
For period: 10/01/2013-09/30/2014: pH, water temperature, and dissolved oxygen records are good. Specific conductance records are fair. Turbidity records are poor.
For period: 10/01/2014-09/30/2015: Specific conductance, pH, water temperature, dissolved oxygen, and turbidity records are good.
For period: 10/01/2015-09/30/2016: Specific conductance, pH, water temperature, and dissolved oxygen records are fair. Turbidity records are poor.
For period: 10/01/2016-09/30/2017: pH, water temperature, and dissolved oxygen records are good. Specific conductance records are fair. Turbidity records are poor.
For period: 10/01/2017-09/30/2018: pH, water temperature, and dissolved oxygen records are good. Specific conductance records are fair. Turbidity records are poor.
For period: 10/01/2018-09/30/2019: pH, water temperature, and dissolved oxygen records are good. Specific conductance records are fair. Turbidity records are poor.

Data for parameter code 63680 (turbidity) were collected using a probe with the following specifications: turbidity, water, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +/-2.5 degrees, FNU (Formazin Nephelometric Units). Prior to October 1, 2004, turbidity data were published using parameter code 00076: turbidity, water, unfiltered, NTU (Nephelometric Turbidity Units). Water sample constituent analysis is by the U.S. Geological Survey, National Water Quality Laboratory (USGS-NWQL), and laboratory chemical analyses are by RTI Laboratory, Livonia, MI. Laboratory sediment analyses are by the U.S. Geological Survey, Kentucky Sediment Laboratory. Field determinations of discharge, gage height, microbiology, specific conductance, pH, water temperature, turbidity, air temperature, barometric pressure, and dissolved oxygen are by the U.S. Geological Survey.

EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 791 microsiemens, January 23, 2018; minimum recorded, 19 microsiemens, December 24, 2015.

pH: Maximum recorded, 10.8 units, February 19, 2019; minimum recorded, 5.8 units, March 15, 2011.

WATER TEMPERATURE: Maximum recorded, 30.4°C, August 23, 2007; minimum recorded, -0.2°C, January 9, 2010.

DISSOLVED OXYGEN: Maximum recorded, 13.9 mg/L, January 24, 30, 2014; minimum recorded, 2.2 mg/L, June 29, 2007.

TURBIDITY: Maximum recorded, >2,200 FNU, September 22, 2003; minimum recorded, <0.5 FNU, September 1, 2012.