USGS Water-Year Summary 2021
073802514 Barataria Waterway at Champagne Bay nr Grand Isle
LOCATION - Lat 29°20'01.0", long 89°59'18.6" referenced to North American Datum of 1983, Jefferson Parish, LA, Hydrologic Unit 08090301, located on top of 6ftx6ft platform approximately 5.2 miles NNW of NOAA Grand Isle, LA tidal station
- Specific conductance data for Mar 11, 2019 was edited on Sep 19, 2019 to reflect actual values; salinity data is also affected for this time period.
PERIOD OF RECORD - November 2017 to present.
GAGE - Water level recorder consist of a non-contact water stage recorder housed in an aluminum shelter approximately 15ft above water level. Datum of gage is 1.90ft below NAVD88 (GEOID12B) EPOCH 2010.0000.
COOPERATION - Louisiana Coastal Protection and Restoration Authority
EXTREMES FOR PERIOD OF RECORD - Maximum recorded gage height, 6.47ft, on Jul 12, 2019; Hurricane Barry. Minimum recorded gage height on 0.67ft, Jan 17 2018.
PERIOD OF RECORD - November 2017 to present
INSTRUMENTATION - Water quality multiprobe collecting water temperature, specific conductance, dissolved oxygen, pH, chlorophyll, and turbidity.
EXTREMES FOR PERIOD OF RECORD
SPECIFIC CONDUCTANCE: Maximum recorded, 50,100 microsiemens/cm, Jan 21, 2018; minimum recorded, 1450 microsiemens/cm, Nov 10, 2019.
SALINITY: Maximum recorded, 33.0 ppt, Jan 21, 2018; minimum recorded, 0.7ppt Nov 10, 2018.
WATER TEMPERATURE: Maximum recorded, 35.0°C, Sep 18, 2018; minimum recorded, 4.0°C, Jan 4, 2018.
PH: Maximum recorded, 9.5 std. units, Jan 8, 2019, minimum recorded, 7.2 std. units, on Sep 29, 2018.
DISSOLVED OXYGEN: Maximum recorded, 20.0 mg/L, Feb 11, 2019; minimum recorded, 1.0 mg/L, Sep 15, 2019.
TURBIDITY: Maximum recorded, 456 FNU, Feb 21, 2020, Minimum recorded, 1.4 FNU, Jan. 15, 2020.