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Water-Year Summary for Site 02207385

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Available Parameters
00010 Temperature, water(Max.,Min.,Mean,Med.)  
00045 Precipitation(Sum)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00300 Dissolved oxygen(Mean,Max.,Min.)  
00400 pH(Max.,Med.,Min.)  
63680 Turbidity, Form Neph(Max.,Med.,Min.)  

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

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USGS Water-Year Summary 2023
02207385 BIG HAYNES CREEK AT LENORA ROAD, NEAR SNELLVILLE, GA
LOCATION - Lat 33°48'55.0", long 83°59'24.5" referenced to North American Datum of 1983, Gwinnett County, GA, Hydrologic Unit 03070103, at Lenora Road, 5.5 miles southeast of Snellville.
DRAINAGE AREA - 17.3 mi².
REVISIONS HISTORY - WDR GA-04-01: daily streamflow for 2001 and 2002 water years.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: February 2001 to current year.
GAGE-HEIGHT: February 2001 to current year.
GAGE - Satellite telemetry with a water stage recorder. Datum of gage is 843.09 feet above the North American Vertical Datum (NAVD) of 1988 (leveling by Global Positioning System equipment).
COOPERATION - Gwinnett County Department of Water Resources.
REMARKS - Gage-height records are generally fair. 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, 2,180 cfs, April 19, 2019; maximum gage-height recorded, 12.74 feet, April 19, 2019; minimum daily discharge, 1.5 cfs, estimated, July 2, 2012.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - February 2001 to current year.
INSTRUMENTATION - Tipping-bucket raingage.
WATER-QUALITY RECORDS
PERIOD OF RECORD - March 1996 to current year.
PERIOD OF DAILY RECORD -

WATER TEMPERATURE: February 2001 to current year. 

SPECIFIC CONDUCTANCE: February 2001 to current year. 

pH: August 2023 to current year. 

DISSOLVED OXYGEN:  August 2023 to current year. 

TURBIDITY: February 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 rated good, specific conductance records are rated fair. Turbidity records are rated poor.
For period 10/01/2015-09/30/2016: Continuous water temperature records are rated good, specific conductance records are rated fair. Turbidity records are rated poor.
For period 10/01/2016-09/30/2017: Continuous water temperature records are rated good, specific conductance records are rated fair. Turbidity records are rated poor.
For period 10/01/2017-09/30/2018: Continuous water temperature records are rated good, specific conductance records are rated fair. Turbidity records are rated poor.
For period 10/01/2018-09/30/2019: Continuous water temperature records are rated good, specific conductance records are rated fair. Turbidity records are rated 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 9 indicates a routine sample while J designates a storm event sample. Laboratory chemical analyses are by RTI Laboratories, Livonia, MI. 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, 132 microsiemens, August 27, 2002; minimum recorded, 14 microsiemens, July 7, 2005.

WATER TEMPERATURE: Maximum recorded, 27.5 °C, August 9, 2007, July 25, 2010; minimum recorded, 0.7 °C, January 10, 2011.

TURBIDITY: Maximum recorded, >2,200 FNU on several days; minimum recorded, 0.6 FNU, November 3, 2012.