USGS Water-Year Summary 2024
073745275 Black Bay nr Stone Island nr Pointe-A-La-Hache, LA
LOCATION - Lat 29°34'09.5", long 89°30'44.0" referenced to North American Datum of 1983, Plaquemines Parish, LA, Hydrologic Unit 08090203, Located on Black Bay Central Facility monitoring platform, approx 15 miles ENE of Bohemia, LA.
DRAINAGE AREA - Indeterminate.
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 20, 2014 to present.
GAGE - Water-stage recorder. Datum of gage is 4.41 feet below NAVD88 GEOID18.
COOPERATION - Louisiana Coastal Protection and Restoration Authority
EXTREMES FOR PERIOD OF RECORD - Maximum recorded gage height, 16.58ft, Aug. 29, 2021; minimum recorded gage height, 0.93ft, Jan 22, 2016.
WATER-QUALITY RECORDS
PERIOD OF RECORD - May 20, 2014 to present.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: May 20, 2014 to present. SALINITY: May 20, 2014 to present. WATER TEMPERATURE: May 20, 2014 to present.
INSTRUMENTATION - Water-quality monitor collecting temperature and specific conductance.
EXTREMES FOR PERIOD OF RECORD -
SPECIFIC CONDUCTANCE:
Maximum recorded, 50,500 microsiemens/cm, Jul. 25, 2015;
minimum recorded, 107 microsiemens/cm, Jan. 04, 2019.
SALINITY:
Maximum recorded, 33.1 ppt, Jul. 25, 2015;
minimum recorded, 0.1 ppt, Jan. 04, 2019.
WATER TEMPERATURE:
Maximum recorded, 33.4°C, Aug. 18, 2017;
minimum recorded, 5.1°C, Jan. 04, 2018.