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Water-Year Summary for Site 02198810

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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00045 Precipitation(Sum)  
00060 Discharge(Tid.,Tid.)  
00065 Gage height(Tid.,Tid.)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00400 pH(Med.,Max.,Min.)  
00480 Salinity(Max.,Min.,Med.)  

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

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USGS Water-Year Summary 2020
02198810 ABERCORN CREEK NEAR SAVANNAH,GA
LOCATION - Lat 32°15'20", long 81°10'42" referenced to North American Datum of 1927, Effingham County, GA, Hydrologic Unit 03060109, 1.9 miles upstream of mouth, 4.3 miles southeast of Rincon, and 13 miles north-northwest of Savannah.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
DISCHARGE: April 2009 to current year.
GAGE HEIGHT: October 1986 to September 1987, April 1988 to November 1989, April 2009 to current year.
WATER VELOCITY: April 2009 to current year.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is the North American Vertical Datum (NAVD) of 1988 (levels by U.S. Geological Survey).
COOPERATION - U.S. Army Corp of Engineers, Savannah District.
REMARKS -
For period: 10/01/2014-09/30/2015: Discharge records poor. Gage height records fair. Water velocity records poor.
For period: 10/01/2015-11/30/2015: Discharge records fair. Gage height records fair. Water velocity records fair.
For period: 12/01/2015-04/04/2016: Discharge records poor. Gage height records fair. Water velocity records fair.
For period: 04/05/2016-06/19/2019: Discharge records fair. Gage height records fair. Water velocity records fair.
For period: 06/19/2019-08/13/2019: Discharge records poor. Gage height records poor. Water velocity records fair.
For period: 08/13/2019-11/26/2019: Discharge records fair. Gage height records fair. Water velocity records fair.

Streamflow at this site is affected significantly by astronomical tides. By convention, the U.S. Geological Survey has established ebb (seaward) flows as positive flows and flood (landward) flows as negative flows. Unfiltered 15-minute stage, velocity, and discharge data are available upon request.

EXTREMES FOR PERIOD OF RECORD - Maximum gage height recorded, 6.78 feet, October 8, 2016; minimum gage height recorded, -4.75 feet, January 14, 2012.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - April 2009 to current year.
INSTRUMENTATION - Tipping-bucket raingage.
WATER-QUALITY RECORDS
PERIOD OF RECORD - October 2008 to November 2010; July 2014 to September 2014.
PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: October 1986 to September 1987, April 1988 to November 1989, December 2009 to current year.
pH: November 2013 to current year.
WATER TEMPERATURE: December 2009 to current year.
SALINITY: October 2013 to current year.

COOPERATION - U.S. Army Corp of Engineers, Savannah District.
INSTRUMENTATION - Satellite telemetry with a continuous water-quality monitor.
REMARKS -

For period 10/01/1986 to 09/30/1987:  Specific Conductance rated good.

For period 04/01/1988 to 11/30/1989:  Specific Conductance rated good.

For period 12/01/2009 to 09/13/2013:  Specific Conductance and Water Temperature rated good.

For period 10/01/2013 to 09/30/2014: Specific Conductance and Water Temperature are rated good; pH is rated fair.  Computed Salinity is rated good for days for which it is computed.  Computed Salinity is missing on many days due to input specific conductance values exceeding the limit of the rating.

For period 10/01/2014 to 09/30/2015: Specific Conductance and Water Temperature are rated good; pH is rated fair.  Computed Salinity is rated good for days for which it is computed.  Computed Salinity is missing on many days due to input specific conductance values exceeding the limit of the rating.

For period 10/01/2015 to 09/30/2016:  Specific Conductance and Water Temperature are rated good; pH is rated good, except for the period 10/22-11/08/2015, which is rated poor. Computed Salinity records are rated good for days in which values could be computed; most of the year is missing due to input specific conductance values being less than the low end of the salinity rating.

For period 10/01/2016 to 09/30/2017: Specific Conductance, Water Temperature, and pH are rated good.  Computed Salinity is rated good for days for which it is computed.  Computed Salinity is missing on many days due to input specific conductance values exceeding the limit of the rating.

For period 10/01/2017 to 11/22/2017:  Specific Conductance, Water Temperature, and pH are rated good.  Computed Salinity is rated good for days for which it is computed.  Computed Salinity is missing on many days due to input specific conductance values exceeding the limit of the rating.

EXTREMES FOR PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: Maximum recorded, 9,370 microsiemens, September 11, 2017; minimum recorded, 38 microsiemens, June 13, 2019
pH: Maximum recorded, 7.4 standard units, on July 23, 2015, May 19, 20, 2017; minimum recorded, 5.6 standard units; November 17, 2019
WATER TEMPERATURE: Maximum recorded, 31.9°C, August 8, 2011; minimum recorded, 2.8°C, January 05, 2018.
SALINITY: Maximum recorded, 5.2 parts-per-thousand, September 11, 2017; minimum recorded, <0.04 parts-per-thousand, on many days during the period of record.