USGS Water-Year Summary for Site 02205865

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00045 Precipitation(Sum)
	00060 Discharge(Mean)
	00065 Gage height(Max.,Min.,Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	63680 Turbidity, Form Neph(Min.,Med.,Max.)

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

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USGS Water-Year Summary 2023

02205865 SWEETWATER CREEK AT CLUB DRIVE NEAR LILBURN, GA

LOCATION - Lat 33°56'28", long 84°06'28" referenced to North American Datum of 1983, Gwinnett County, GA, Hydrologic Unit 03070103,

DRAINAGE AREA - 21 mi². revised.

REVISIONS HISTORY - WDR GA-2013: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD -
DISCHARGE: February 2010 to current year.
GAGE-HEIGHT: February 2010 to current year.

GAGE - Satellite telemetry with a water-stage recorder and a continuous water-quality monitor. Datum of gage is 851.75 feet above the North American Vertical Datum (NAVD) of 1988.

COOPERATION - Gwinnett County Department of Water Resources.

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.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 3,600 cfs, May 19, 2013; maximum gage-height recorded, 13.14 feet, May 19, 2013; minimum daily discharge recorded, 0.32 cfs, September 14 and 15, 2011.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - February 2010 to current year.

INSTRUMENTATION - Tipping-bucket raingage.

WATER-QUALITY RECORDS

PERIOD OF RECORD - February 2010 to current year.

PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: February 2010 to current year.
WATER TEMPERATURE: February 2010 to current year.
TURBIDITY: February 2010 to current year.

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

REMARKS -
For period:10/01/2014-09/30/2015: Continuous water temperature and specific conductance records are good, turbidity record is poor.
For period:10/01/2015-09/30/2016: Continuous water temperature and specific conductance records are good, turbidity record is poor.
For period:10/01/2016-09/30/2017: Continuous water temperature and specific conductance records are good, turbidity record is poor.
For period:10/01/2017-09/30/2018: Continuous water temperature and specific conductance records are good, turbidity record is poor.
For period:10/01/2018-09/30/2019: Continuous water temperature and specific conductance records are good, turbidity record is poor.
For period:10/01/2019-09/30/2020: Continuous water temperature and specific conductance records are good, turbidity record is 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). Hydrologic event 9 indicates a routine sample while J designates a storm event sample. 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, specific conductance, pH, water temperature, turbidity, barometric pressure, air temperature, and dissolved oxygen are by the U.S. Geological Survey.

EXTREMES FOR PERIOD OF RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 501 microsiemens, January 01, 2017; minimum recorded, 21 microsiemens, May 19, 2013, December 6, 2022.

WATER TEMPERATURE: Maximum recorded, 33.7°C, July 3, 2012; minimum recorded, 0.2°C, January 30, 2014.

TURBIDITY: Maximum recorded, >1,100 FNU, several days; minimum recorded, 0.8 FNU, June 25 and July 05, 2012.