USGS Water-Year Summary for Site 02207435

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

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

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USGS Water-Year Summary 2023

02207435 LITTLE HAYNES CREEK AT DIAL MILL ROAD, NEAR MILSTEAD, GA

LOCATION - Lat 33°42'40", long 83°54'52" referenced to North American Datum of 1983, Rockdale County, GA, Hydrologic Unit 03070103, on right bank on downstream side of bridge on Dial Mill Road, 0.1 miles north west of Hightower Trail Road, 0.7 miles south of GA 138, 0.6 miles west of Mount Zion Road, and 0.6 miles east of confluence with Big Haynes Creek.

DRAINAGE AREA - 25.8 mi². revised.

REVISIONS HISTORY - WDR GA-2013: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD -
DISCHARGE: October 2001 to March 2007. March 2009 to current year.
GAGE HEIGHT: October 2001 to March 2007. March 2009 to current year.

GAGE - Satellite telemetry with water-stage recorder. Datum of gage is 645.93 feet above North American Vertical Datum (NAVD) of 1988 (leveling by Global Positioning System equipment).

COOPERATION - Rockdale 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, 2,850 cfs, December 24, 2015; maximum gage-height recorded, 11.87 feet, December 24, 2015; minimum daily discharge, 0.10 cfs, estimated, July 9, 2012.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - October 2001 to March 2007. March 2009 to current year.

INSTRUMENTATION - Tipping-bucket raingage.

ECOLOGICAL RECORDS

PERIOD OF RECORD - Invertebrates: June 6, 2003, August 3, 2004, and August 3, 2005. Fishes: August 14, 2003, September 24, 2004, and November 16, 2005.

REMARKS - Data collection protocols used are from draft versions of the Standard Operating Procedures: Freshwater Macroinvertebrate Biological Assessment (Georgia Environmental Protection Division, 2002) and Standard Operating Procedures for Conducting Biomonitoring on Fish Communities in the Piedmont Ecoregion of Georgia (Georgia Department of Natural Resources, 2000). William Pennington and Associates of Cookeville, Tennessee identified invertebrates and Mary Freeman and Paula Marcinek of USGS, Biological Resources Division, identified fishes. Total reach length assessed was 500 meters. Abbreviations: sp.-species, mm- millimeters, g-grams.

WATER-QUALITY RECORDS

PERIOD OF RECORD - November 2002 to February 2007, April 2011 to July 2014.

REMARKS - Medium code WS indicates a surface water sample. Hydrologic condition 9 indicates baseflow, 8 indicates rising stage, 7 indicates peak stage, and 5 indicates falling stage. Sample type 9 indicates a routine sample. Hydrologic event 9 indicates a routine sample. Laboratory chemical analyses are by the U.S. Geological Survey, National Water Quality Laboratory. Biochemical Oxygen Demand samples were analyzed by Severn-Trent Laboratories, Inc.-Denver. Laboratory sediment analyses are by the U.S. Geological Survey, Sediment Partitioning Research Laboratory. Field determinations of discharge, specific conductance, pH, water temperature, dissolved oxygen, barometric pressure, and turbidity are by the U.S. Geological Survey.