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Water-Year Summary for Site 07374525

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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
00060 Discharge(Mean)  
00065 Gage height(Mean)  
63680 Turbidity, Form Neph(Min.,Mean,Max.)  

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

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USGS Water-Year Summary 2019
07374525 Mississippi River at Belle Chasse, LA
LOCATION - Lat 29°51'25", long 89°58'40" referenced to North American Datum of 1927, Plaquemines Parish, LA, Hydrologic Unit 08090100, located on left bank at river mile 76, approximately 1/2 mile downstream of Belle Chasse ferry.
DRAINAGE AREA - 1130000 mi² of which 20,000 mi² probably is noncontributing.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2008 to present.
GAGE - Water-stage recorder and acoustic velocity meter. Datum of gage is 6.878 below NAVD88 GEOID09.
REMARKS - Station affected by tide at all stages. Satellite telemetry at station.
EXTREMES FOR PERIOD OF RECORD - Maximum recorded discharge, 1,390,000 ft³/s, Jan 22, 2016; maximum recorded gage height, 18.54 ft, Nov. 10, 2009; maximum recorded negative discharge, -182,000 ft³/s, Aug. 28, 2012; minimum recorded gage height, 6.33 ft, Dec. 2, 2008, Dec. 13, 2012.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1975-99, May 2006 to present.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: October 1974 to May 1990. WATER TEMPERATURE: October 1975 to May 1990. CHLORIDE: October 1974 to May 1990. SULFATE: October 1974 to September 1978. DISSOLVED SOLIDS: October 1978 to May 1990. TURBIDITY: October 2012 to current year.
INSTRUMENTATION - Water-quality monitor recording turbidity.
REMARKS - Turbidity: Record fair.
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum daily, 692 microsiemens/cm Jan. 31, 1981: minimum daily, 223 microsiemens/cm Mar. 7, 1989. WATER TEMPERATURE: Maximum daily, 38.0°C June 9, 1984; minimum daily, 2.0°C Feb. 7, 1984. CHLORIDE: Maximum daily, 85 mg/L June 26, 27, 1977; minimum daily, 11 mg/L Apr. 21, May 12, 1975, May 12, 1984, Mar. 7, 1989. SULFATE: Maximum daily, 93 mg/L Oct. 30, 1976; minimum daily, 28 mg/L Feb. 3, 1975. DISSOLVED SOLIDS: Maximum daily, 415 mg/L on several days; minimum daily, 145 mg/L on many days. TURBIDITY: Maximum, 250 FNU Jan. 25, 2014; minimum, 5.4 FNU Sep. 30, 2017.