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Water-Year Summary for Site 073745258

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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)  
00065 Gage height(Max.,Min.,Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00480 Salinity(Max.,Min.,Mean)  

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

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USGS Water-Year Summary 2019
073745258 Cow B. at American Bay near Point-A-LA-Hache, LA
LOCATION - Lat 29°34'14", long 89°42'14" referenced to North American Datum of 1927, Plaquemines Parish, LA, Hydrologic Unit 08090203,
DRAINAGE AREA - Indeterminate.
REVISIONS HISTORY - WRD LA-02-1: 2002.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1997 to September 1998. January 1999 to September 2002. April 2004 to current year.
GAGE - Water-stage recorder. Datum of gage is 0.59 ft below NAVD88 Geoid09. Prior to April 5, 2004 datum of gage was NAVD 88. Prior to October 1, 1998 datum of gage was 4.33 ft below NAVD 1988.
REMARKS - Site affected by wind and tide. Satellite telemetry at station.
EXTREMES FOR PERIOD OF RECORD - Maximum recorded gage height, 11.28 ft, Aug. 28, 2012; minimum recorded gage height, -2.43 ft, Aug. 24, 2008.
WATER-QUALITY RECORDS
PERIOD OF RECORD - May 1997 to September 2002. April 2004 to current year.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: May 1997 to September 2002. April 2004 to current year. SALINITY: April 2004 to current year. WATER TEMPERATURE: May 1997 to September 2002. April 2004 to current year.
INSTRUMENTATION - Water-quality monitor recording specific conductance and water temperature.
EXTREMES FOR PERIOD OF RECORD - SPECIFIC CONDUCTANCE: Maximum, 38,000 microsiemens/cm, June 6, 2001; minimum, 288 microsiemens/cm, Mar. 19, 2018. SALINITY: Maximum, 23.7 ppt, Aug. 28, 2012; minimum, 0.1 ppt, on many days. WATER TEMPERATURE: Maximum, 35.2 °C, Aug. 20,2011; minimum, 1.5 °C, Jan. 10, 2010.