USGS Water-Year Summary for Site 02208130

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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(Max.,Med.,Min.)

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

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USGS Water-Year Summary 2023

02208130 SHOAL CREEK AT PAPER MILL ROAD, NEAR LAWRENCEVILLE, GA

LOCATION - Lat 33°56'59", long 83°56'54" referenced to North American Datum of 1983, Gwinnett County, GA, Hydrologic Unit 03070103, 2.1 miles east of Lawrenceville, and 2.6 miles upstream from confluence with Alcovy River.

DRAINAGE AREA - 5.46 mi². revised.

REVISIONS HISTORY - WDR GA-2013: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD -
DISCHARGE: October 2006 to July 2014 (discontinued).
GAGE-HEIGHT: October 2005 to July 2014, December 2015 to current.

GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 874.24 feet above NAVD88.

COOPERATION - Gwinnett County Department of Water Resources.

REMARKS - Gage-height 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.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,280 cfs, September 21, 2009, from computation of peak flow through culvert; maximum gage height, 13.12 feet, September 21, 2009; minimum daily discharge, 0.39 cfs, September 14, 2011.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - October 2005 to July 2014, December 2015 to current.

INSTRUMENTATION - Tipping bucket raingage.

WATER-QUALITY RECORDS

PERIOD OF RECORD - October 2005 to July 2014 (discontinued).

PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: October 2005 to July 2014 (discontinued).

WATER TEMPERATURE: October 2005 to July 2014 (discontinued).

TURBIDITY: October 2005 to July 2014 (discontinued).

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

REMARKS -
10/01/2013-07/29/2014: Water temperature records are good, specific conductance record is rated 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).

Hydrologic event 9 indicates a routine sample while J designates a storm event sample. Laboratory chemical analyses are by RTI Laboratories, Livonia, MI, and Test America Laboratory, Denver, CO. Laboratory sediment analyses are by the U.S. Geological Survey, Sediment Partitioning Research Laboratory. Field determinations of discharge, specific conductance, pH, water temperature, turbidity, barometric pressure and dissolved oxygen are by the U.S. Geological Survey.

EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 404 microsiemens, August 29, 2012; minimum recorded, 13 microsiemems, January 23, 2006.

WATER TEMPERATURE: Maximum recorded, 28.1 °C, July 29. 2010; minimum recorded, 0.7 °C, February 5, 2009.

TURBIDITY: Maximum recorded, >1100 FNU, April 20, 2006, September 14, 2007 and August 26, 2008; minimum recorded, >0.5 FNU, October 22-24, 2010.