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Water-Year Summary for Site 07380260

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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(Mean)  
00065 Gage height(Mean)  
00095 Specific cond at 25C(Mean)  
00300 Dissolved oxygen(Med.)  
00400 pH(Mean)  

Water year 2019: 2018-10-01 to 2019-09-30
 

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USGS Water-Year Summary 2019
07380260 Empire Waterway S of Empire, LA
LOCATION - Lat 29°18'16.3", long 89°35'49.2" referenced to North American Datum of 1983, Plaquemines Parish, LA, Hydrologic Unit 08090301, located on top of 6ftx6ft platform in the Empire Waterway, approximately 4.88 miles south of the Empire Flood Gates.
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 2017 to present
GAGE - Water level recoder consist of a non-contact water stage recorder housed in aluminum shelter approximately 15ft above water level. Datum of gage is 4.50ft below NAVD88 (GEOID12B) EPOCH 2010.0000.
COOPERATION - Louisiana Coastal Protection and Restoration Authority.
REMARKS - Site affected by wind and tide. Satellite telemetry at station.
EXTREMES FOR PERIOD OF RECORD - Maximum recorded gage height, 8.27ft, Jul 13, 2019. Minimum recorded gage height, 2.90ft, Jan 17, 2018.
WATER-QUALITY RECORDS
PERIOD OF RECORD - November 2017 to present.
INSTRUMENTATION - Water quality multiprobe collecting water temperature, specific conductance, dissolved oxygen, pH, chlorophyll and turbidity.
REMARKS - Turbidity and chlorophyll data heavily affected by oyster harvesting in the area. Turbidity data considered poor due to severe biofouling at the site location and extreme wind events causing significant turbulence.
EXTREMES FOR PERIOD OF RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 57,500 microsiemens/cm, Apr 15, 2019; minimum recorded, 635 microsiemens/cm, Jul 13, 2018. SALINITY: Maximum recorded, 38.0 ppt, Jul 6, 2019; minimum recorded, 0.3 ppt, on Jul 13, 2019. WATER TEMPERATURE: Maximum recorded, 33.1°C, Jul 6, 7, 2019; minimum recorded, 3.2°C, Jan. 18, 2018. PH: Maximum recorded, 9.1 std units, May 6, 2019; minimum recorded, 7.2 std units, Apr 6, 15, 2019. TURBIDITY: Maximum recorded, 491 FNU, Jun 28, 2019; minimum recorded, 2.8 FNU, dec 18, 2018 and Jan 18, 2019. DISSOLVED OXYGEN: Maximum recorded, 19.6 mg/L, Mar 24, 2019; minimum recorded, 0.9 mg/L, Aug 15, 16, 2019.