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Water-Year Summary for Site 02207385

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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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)  
63680 Turbidity, Form Neph(Max.,Med.,Min.)  

Water year 2019: 2019-10-01 to 2020-09-30
 

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USGS Water-Year Summary 2019
02207385 BIG HAYNES CREEK AT LENORA ROAD, NEAR SNELLVILLE, GA
LOCATION - Lat 33°48'54", long 83°59'25" referenced to North American Datum of 1927, 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 860 feet above National Geodetic Vertical Datum (NGVD) of 1929 (from topographic map).
COOPERATION - Gwinnett County Department of Water Resources.
REMARKS -
For period 10/01/2013-09/30/2014: Discharge records fair, except for days of estimated discharge, which are poor. Gage-height records fair.
For period 10/01/2014-09/30/2015: Discharge records fair, except for days of estimated discharge, which are poor. Gage-height records fair.
For period 10/01/2015-09/30/2016: Discharge records fair, except for days of estimated discharge, which are poor. Gage-height records fair.
For period 10/01/2016-09/30/2017: Discharge records poor. Gage-height records fair.
For period 10/01/2017-09/30/2018: Discharge records fair, except for days of estimated discharge, which are poor. Gage-height records fair.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge recorded, 1,750 cfs, July 7, 2005; maximum gage-height recorded, 11.89 feet, July 7, 2005; 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 -
SPECIFIC CONDUCTANCE: February 2001 to current year.

WATER TEMPERATURE: February 2001 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.

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, and Test America Laboratory, Denver, CO. Laboratory sediment analyses are by the U.S. Geological Survey, KY 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, 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 2-3, 2012.