USGS Water-Year Summary for Site 254344081095101

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	Available Parameters
	00010 Temperature, water(Max.)
	00095 Specific cond at 25C(Max.)
	00480 Salinity(Max.)
	62611 Elevation, GW, NAVD88(Max.)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

254344081095101 MO - 216

Biscayne Limestone Aquifer

LOCATION - Lat 25°43'44.5", long 81°09'51.3" referenced to North American Datum of 1983, Monroe County, FL, Hydrologic Unit 03090204, located 7mi west of the 40-Mile Bend Check Station along Loop Road Big Cypress National Preserve, 11.5 mi south of Mitchell Landing campground, 11.7 mi northwest of Coconuts Camp.

REVISIONS HISTORY - Groundwater levels on Apr. 24, 2017, were revised on Feb. 12, 2018, due to the removal of a data spike. The daily maximum elevation, NAVD 88, on Apr. 24, 2017 was revised.

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 10.2 ft. Upper casing diameter 3 in; top of first opening undefined, bottom of last opening undefined.

DATUM - Land-surface datum is 1 ft above North American Vertical Datum of 1988. Measuring point: top of casing, -2.23 ft above North American Vertical Datum of 1988, Dec. 1, 2012 to Aug. 22, 2017; top of casing, 3.16 ft above North American Vertical Datum of 1988, Dec. 1, 2012 to Aug. 22, 2017; top of casing, -2.23 ft above North American Vertical Datum of 1988, Aug. 22, 2017 to present; top of casing, 3.17 ft above North American Vertical Datum of 1988, Aug. 22, 2017 to present.

PERIOD OF RECORD - December 2012 to current year.

GAGE - Satellite data collection platform with pressure transducer.

REMARKS - Water level records are available in the files of the U.S. Geological Survey. Water level 15 minute data can also be accessed online at http://sofia.usgs.gov/. Daily values are available online at http://waterdata.usgs.gov/nwis. Transmission of water quality parameters was stopped in May 2013 due to lack of funding.

EXTREMES FOR PERIOD OF RECORD - Highest water level, 2.90 NAVD, Sept. 11, 2017; lowest, 1.28 ft below NAVD, May 25, 2014.

WATER-QUALITY RECORDS

WELL CHARACTERISTICS - Depth 10.2 ft. Upper casing diameter 3 in; top of first opening undefined, bottom of last opening undefined.

PERIOD OF RECORD - December 2012 to May 2013. April 2017 to current year.

INSTRUMENTATION - Specific conductivity and water temperature sensors probe.

REMARKS - Specific conductance, salinity and water temperature records are available in the files of the U.S. Geological Survey. Specific conductance, salinity and water temperature 15 minute data can also be accessed online at http://sofia.usgs.gov/. Daily values are available online at http://waterdata.usgs.gov/nwis.

EXTREMES FOR PERIOD OF RECORD - SALINITY: Maximum recorded, 15 ppt., multiple days during the water years 2017, 2018; minimum recorded,11 ppt., (Corrected), multiple days during the water year 2018. SPECIFIC CONDUCTANCE: Maximum recorded, 25,000 uS/cm @25°C, multiple days during the water years 2017, 2018; minimum recorded, 18,100 uS/cm @25°C, multiple days during the water year 2018. WATER TEMPERATURE: Maximum recorded, 27.3°C, multiple days during the water year 2018; minimum recorded, 21.8°C, multiple days during the water years 2013-2018.