USGS Water-Year Summary for Site USGS 07380249

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	Available Parameters
	00010 Temperature, water(Mean)
	00065 Gage height(Mean)
	00095 Specific cond at 25C(Mean)
	00300 Dissolved oxygen(Mean)
	00400 pH(Mean)
	32316 fChl, water, in situ(Mean)
	63680 Turbidity, Form Neph(Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

07380249 Caminada Pass NW of Grand Isle, LA

LOCATION - Lat 29°13'52.9", long 90°02'54.7" referenced to North American Datum of 1983, Jefferson Parish, LA, Hydrologic Unit 08090301, located on top of 6ftx6ft platform approximately 1.5 miles north of Caminada Pass Bridge.

REVISIONS HISTORY - Salinity and Specific Conductance for Jan 21, 2020 through May 29, 2020 were revised on Dec 3, 2024 for erroneous data removal.

SURFACE-WATER RECORDS

PERIOD OF RECORD - November 2017 to present.

GAGE - Water level recorder consist of a non-contact water stage recorder housed in aluminum shelter approximately 10ft above the water surface.

Datum of gage is 1.28ft 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, 9.71ft, Aug 29, 2021, Hurricane Ida. Minimum recorded gage height, 0.50ft, 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, cholorphyll, and turbidity.

REMARKS -

Turbidity data considered poor due to severe biofouling at the site location and extreme wind events causing significant turbulence.

Extremes may have been exceeded during period of missing record due to Hurricane Ida, 2021.

EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum recorded, 35.5°C, Aug 13, 2023; minimum recorded, 4.2°C, Jan 4, 2018. SPECIFIC CONDUCTANCE: Maximum recorded, 57800 microsiemens/cm, Feb 4, 2021; minimum recorded, 5850 microsiemens/cm, Jun 30, 2020. SALINITY: Maximum recorded, 39 ppt, Feb 4, 2021; minimum recorded, 3.2 ppt, on Jun 29, 30, 2020 PH: Maximum recorded, 9.1 std units, Jan. 08, 2019; minimum recorded std units, 6.6, Jun 18, 2019. TURBIDITY: Maximum recorded, 500 FNU, Jul 7, 2020; minimum recorded, <1 FNU, Nov 1, 2017 and Jan 18, 2023. DISSOLVED OXYGEN: Maximum recorded, 17.4 mg/L, Jul 18, 2019; minimum recorded, 0.6 mg/L, May 7, 2022.