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USGS Water-Year Summary 2024
02207185 NO BUSINESS CREEK AT LEE ROAD, BELOW SNELLVILLE, GA
LOCATION - Lat 33°46'39", long 84°02'16" referenced to North American Datum of 1983, Gwinnett County, GA, Hydrologic Unit 03070103, downstream side of bridge on County Road 135, and 3.4 miles east of Centerville.
DRAINAGE AREA - 10.1 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: March 2001 to current year.
GAGE HEIGHT: March 2001 to current year.
DISCHARGE: March 2001 to current year.
GAGE HEIGHT: March 2001 to current year.
GAGE - Satellite telemetry with water-stage recorder. Datum of gage is 735.53ft above NAVD88.
COOPERATION - Gwinnett County Department of Water Resources.
REMARKS - Gage-height records are generally good. Discharge records are generally good 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 instantaneous discharge, 2,440 cfs, estimated, April 19, 2019. Maximum instantaneous gage-height recorded, 10.92 feet, April 19, 2019. Minimum daily mean discharge, 0.22 cfs, September 3, 2011.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - March 2001 to current year.
INSTRUMENTATION - Tipping-bucket raingage.
WATER-QUALITY RECORDS
PERIOD OF RECORD - March 1999 to current year.
PERIOD OF DAILY RECORD -
WATER TEMPERATURE: March 2001 to current year.
SPECIFIC CONDUCTANCE: March 2001 to current year.
TURBIDITY: March 2001 to current year.
WATER TEMPERATURE: March 2001 to current year.
SPECIFIC CONDUCTANCE: March 2001 to current year.
TURBIDITY: March 2001 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 records are good, specific conductance records are fair, and turbidity records are poor.
For period: 10/01/2015-09/30/2016: Continuous water temperature records are good, specific conductance records are fair, and turbidity records are poor.
For period: 10/01/2016-09/30/2017: Continuous water temperature records are good, specific conductance records are fair, and turbidity records are poor.
For period: 10/01/2017-09/30/2018: Continuous water temperature records are good, specific conductance records are fair, and turbidity records are poor.
For period: 10/01/2018-09/30/2019: Continuous water temperature records are good, specific conductance records are fair, and 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). Hydrologic event code of 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, Kentucky Sediment Laboratory. Field determinations of discharge, gage height, air temperature, specific conductance, pH, water temperature, turbidity, barometric pressure and dissolved oxygen are by the U.S. Geological Survey.
For period: 10/01/2014-09/30/2015: Continuous water temperature records are good, specific conductance records are fair, and turbidity records are poor.
For period: 10/01/2015-09/30/2016: Continuous water temperature records are good, specific conductance records are fair, and turbidity records are poor.
For period: 10/01/2016-09/30/2017: Continuous water temperature records are good, specific conductance records are fair, and turbidity records are poor.
For period: 10/01/2017-09/30/2018: Continuous water temperature records are good, specific conductance records are fair, and turbidity records are poor.
For period: 10/01/2018-09/30/2019: Continuous water temperature records are good, specific conductance records are fair, and 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). Hydrologic event code of 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, Kentucky Sediment Laboratory. Field determinations of discharge, gage height, air temperature, 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, 266 microsiemens, September 16, 17, 2002; minimum recorded, 18 microsiemens, December 24, 2015.
WATER TEMPERATURE: Maximum recorded, 28.5 °C, July 27, 2010; minimum recorded, 0.1 °C, January 10, 2011.
TURBIDITY: Maximum recorded, >2,200 FNU on several days; minimum recorded, <0.5 FNU, September 29, 2010, November 2, 2011, January 2, 2018.
SPECIFIC CONDUCTANCE: Maximum recorded, 266 microsiemens, September 16, 17, 2002; minimum recorded, 18 microsiemens, December 24, 2015.
WATER TEMPERATURE: Maximum recorded, 28.5 °C, July 27, 2010; minimum recorded, 0.1 °C, January 10, 2011.
TURBIDITY: Maximum recorded, >2,200 FNU on several days; minimum recorded, <0.5 FNU, September 29, 2010, November 2, 2011, January 2, 2018.
