USGS Water-Year Summary for Site 251457080395802

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

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

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USGS Water-Year Summary 2024

251457080395802 G-3777. USGS OBSERVATION WELL IN EVERGLADES, FL.

Biscayne aquifer
Biscayne Limestone Aquifer

LOCATION - Lat 25°15'09.20", long 80°39'58.54" referenced to North American Datum of 1983, Miami-Dade County, FL, Hydrologic Unit 03090202, approximately 13 mi southwest of Pine Island in Taylor Slough of Everglades National Park.

REVISIONS HISTORY - WDR-US-2009, site 251457080395802: 2008, lowest daily maximum water level for the period of record. WDR-US-2012, site 251457080395802: 2006, 2007, daily values table and unit values for water level data. Groundwater level above NAVD88 on November 12, 2017 at 22:15 was revised on June 13, 2018 because the reading was erroneous.

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 9.90 ft. Upper casing diameter 2 in; top of first opening undefined, bottom of last opening undefined.

DATUM - Land-surface datum is 0 ft above North American Vertical Datum of 1988. Measuring point: Undefined.

PERIOD OF RECORD - October 2003 to current year.

GAGE - Satellite data collection platform with pressure transducer, specific conductivity, and water temperature probe.

COOPERATION - U.S. Army Corps of Engineers and U.S. Geological Survey Greater Everglades Priority Ecosystem Science.

REMARKS - During periods of missing record, values may be higher or lower than the listed extremes. 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. Daily value tables for water years 2003-2007 were not published in previous Water Data Reports.

EXTREMES FOR PERIOD OF RECORD - Highest water level, 1.88 ft NAVD, September 11, 2017; lowest, 2.34 ft below NAVD, July 11, 2004.

WATER-QUALITY RECORDS

WELL CHARACTERISTICS - Depth 9.90 ft. Upper casing diameter 2 in; top of first opening undefined, bottom of last opening undefined.

DATUM - Land-surface datum is 0 ft above North American Vertical Datum of 1988. Measuring point: Undefined.

PERIOD OF RECORD - Salinity: October 2004 to current year. Specific Conductance: October 2003 to current year. Water Temperature: October 2003 to current year.

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. Daily value tables for water years 2003-2007 were not published in previous Water Data Reports.

EXTREMES FOR PERIOD OF RECORD - SALINITY: Maximum recorded, 6.7 ppt., April 10, 2018; minimum recorded, 3.2 ppt. Dec. 30, 2003 to Feb. 1, 2004, Feb. 10-19, 2004, Nov. 23, 2007 to Dec. 27, 2007. SPECIFIC CONDUCTANCE: Maximum recorded, 11, 700 uS/cm @25°C, April 8, 2018; minimum recorded, 5,920 uS/cm @25°C, Dec. 8, 10-12, 2007. WATER TEMPERATURE: Maximum recorded, 28.9°C, Oct. 5, 6, 2003; minimum recorded, 21.8°C, Mar. 6-8, 2010.