USGS Water-Year Summary for Site 021989791

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

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

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USGS Water-Year Summary 2023

021989791 LITTLE BACK RIVER AT F&W DOCK, NEAR LIMEHOUSE, SC

LOCATION - Lat 32°10'15.6", long 81°07'03.5" referenced to North American Datum of 1983, Jasper County, SC, Hydrologic Unit 03060109, on left bank at U.S. Fish and Wildlife Service dock at Savannah National Wildlife Refuge, 0.3 mi north of U.S. 17 and 4.1 mi southwest of Limehouse, S.C.

DRAINAGE AREA - Indeterminate.

SURFACE-WATER RECORDS

PERIOD OF RECORD - August 2013 to current year.

GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 0.104ft North American Vertical Datum (NAVD) of 1988 (levels by U.S. Geological Survey).

COOPERATION - U.S. Army Corps of Engineers, Savannah District.

REMARKS - Gage-height records are generally good. 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.

Gage height affected significantly by astronomical tides.

EXTREMES FOR PERIOD OF RECORD -

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - August 2004 to current year.

INSTRUMENTATION - Tipping-bucket raingage.

WATER-QUALITY RECORDS

PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: September 1989 to current year.

WATER TEMPERATURE: October 1999 to current year.

DISSOLVED OXYGEN: August 2008 to October 2008.

SALINITY: October 2010 to current year.

INSTRUMENTATION - Satellite telemetry with a water-quality sonde.

REMARKS -
For period: 10/01/2014-09/30/2015: Specific Conductance, Water Temperature, and Salinity records are rated good, except for the period from 06/02/2015-07/27/2015, which are rated fair.
For period: 10/01/2015-09/30/2016: Specific Conductance, Water Temperature, and Salinity records are rated good.

EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 17,000 microsiemens, September 11, 2017 ; minimum recorded, 40 microsiemens, October 13, 1994, February 26, 27, 1995, February 17, 1998.

WATER TEMPERATURE: Maximum recorded, 31.9 °C, August 10, 2007; minimum recorded, 2.9 °C, January 04, 2018.

DISSOLVED OXYGEN: Maximum recorded, 8.4 mg/L, September 10, 2008; minimum recorded, 3.6 mg/L, August 24, 25, 2008.

SALINITY: Maximum recorded, 10.0 parts-per-thousand, September 11, 2017; minimum recorded, <0.04 parts-per-thousand, on many days for the period of record.