USGS Water-Year Summary 2024
07374527 Northeast Bay Gardene near Point-A-LA-Hache, LA
LOCATION - Lat 29°35'08.7", long 89°36'21.5" referenced to North American Datum of 1927, Plaquemines Parish, LA, Hydrologic Unit 08090203, on a thirty-six inch single-pile platform 13.0 miles east southeast of Pointe-A-La-Hache.
DRAINAGE AREA - Indeterminate.
SURFACE-WATER RECORDS
PERIOD OF RECORD - January 1992 to current year.
GAGE - Water-stage recorder.
Datum of gage is 0.18 ft below NAVD88 GEOID12a. Oct. 1, 1995 to Sep. 30, 2009, datum of gage is 0.96 feet below NAVD88 GEOID12a. Prior to October 1, 1995 datum of gage is 8.12 ft below NGVD 1929.
COOPERATION - Louisiana Office of Coastal Protection and Restoration
EXTREMES FOR PERIOD OF RECORD - Maximum recorded gage height, 13.18 ft, Aug 29, 2005, adjusted to current datum; minimum recorded gage height, -4.21 ft, Feb 24, 2016.
WATER-QUALITY RECORDS
PERIOD OF RECORD - January 1992 to current year.
PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: June 1992 to current year.
SALINITY: October 2002 to current year.
WATER TEMPERATURE: January 1992 to current year.
INSTRUMENTATION - Water-quality monitor recording specific conductance and water temperature.
EXTREMES FOR PERIOD OF RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 54,900 microsiemens/cm, Aug. 29, 2012; minimum recorded, 118 microsiemens/cm, Jan. 16, 2022.
SALINITY: Maximum recorded, 35.2 ppt, Aug. 28, 29, 2012,; minimum recorded, 0.1 ppt, on many days.
WATER TEMPERATURE: Maximum recorded, 35.1 °C, Aug. 23, 2011 and July 28 2015; minimum recorded, 2.3° C, Jan. 10, 2010.