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Water-Year Summary for Site 254000080460001

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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Available Parameters
62610 Elevation, GW, NGVD29(Max.)  
62611 Elevation, GW, NAVD88(Max.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
254000080460001 G 620. USGS Observation Well in Everglades National Park, FL.
Biscayne aquifer
Biscayne Limestone Aquifer
LOCATION - Lat 25°39'22.0", long 80°45'59.2" referenced to North American Datum of 1983, in NW 1/4 NE 1/4 sec.30, T.55 S., R.36 E., Miami-Dade County, FL, Hydrologic Unit 03090202, at look-out tower in Everglades National Park, 6.5 mi south of U.S. Highway 41, and 18.9 mi southwest of the intersection of U.S. Highway 41 and State Road 997.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 16.6 ft. Upper casing diameter 6 in; top of first opening 6.2 ft, bottom of last opening 16.6 ft.
DATUM - Land-surface datum is 6.80 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of shelf, 9.85 ft above National Geodetic Vertical Datum of 1929, Sep. 7, 2005 to present. Land-surface datum is 5.28 ft (Revised), above North American Vertical Datum of 1988.
PERIOD OF RECORD - January 1950 to September 1980, November 1982 to current year.
GAGE - Satellite data collection platform.
COOPERATION - South Florida Water Management District, U.S. Army Corps of Engineers, Everglades National Park.
REMARKS - Records of water levels prior to January 1957 are available in files of the U.S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 8.59 ft NGVD, Sept. 10, 2017; lowest daily, 1.86 ft NGVD, May 30, 1965.