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Water-Year Summary for Site 021989793

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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)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  
00480 Salinity(Max.,Min.,Med.)  
63680 Turbidity, Form Neph(Med.,Min.,Max.)  

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

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USGS Water-Year Summary 2023
021989793 LITTLE BACK RIVER AT HOG ISLAND, NEAR SAVANNAH, GA
LOCATION - Lat 32°08'12", long 81°07'19" referenced to North American Datum of 1983, Chatham County, GA, Hydrologic Unit 03060109,
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: August 2013 to current year.

pH: August 2013 to current year.

WATER TEMPERATURE: August 2013 to current year.

DISSOLVED OXYGEN: August 2013 to current year.

TURBIDITY: August 2013 to current year.

SALINITY: August 2013 to current year.
COOPERATION - U.S. Army Corps of Engineers, Savannah District.
INSTRUMENTATION - Satellite telemetry with a continuous water-quality monitor.
REMARKS -
For period: 10/01/2014-10/31/2017: Specific Conductance and water temperature records rated good. pH rated fair. Dissolved Oxygen rated fair, except for periods when concentrations fell below 4.0 mg/L, which are rated poor.Turbidity records rated poor.
EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum recorded, 25,000 microsiemens, September 11, 2017; minimum recorded, 56 microsiemens, March 06, 2020.

pH: Maximum recorded, 8.0 standard units; April 27, 2019; minimum recorded, 6.1 units, June 3-5, and 8, 2016.

WATER TEMPERATURE: Maximum recorded, 31.9°C, July 12, 2016 and August 16, 2016; minimum recorded, 3.2°C, January 5, 2018.

DISSOLVED OXYGEN: Maximum recorded, 11.9 mg/L, April 08, 2018; minimum recorded, 1.3 mg/L; August 04, 2019.

TURBIDITY: Maximum recorded, 323 FNU, May 25, 2017; minimum recorded, 4.8 FNU, November 26, 2013.

SALINITY: Maximum Salinity Recorded, 15.0 parts-per-thousand; September 11, 2019; Minimum Salinity: <0.04 parts-per-thousand; many days during the period of record.