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USGS Water-Year Summary 2024
254130080234501 G - 551. USGS Observation Well near South Miami, FL.
Biscayne aquifer
Biscayne Limestone Aquifer
Biscayne Limestone Aquifer
LOCATION - Lat 25°41'30.0", long 80°23'45.7" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 sec.36, T.54 S., R.39 E., Miami-Dade County, FL, Hydrologic Unit 03090202, on the east side of SW 125th Avenue, 0.6 mi south of Sunset Drive and 6.5 mi west of South Miami.
REVISIONS HISTORY - WDR-US-2008, site 254130080234501: 2006 (Water Level data); WDR-US-2008, site 254130080234501: 2006 (lowest daily maximum for the period of record). Water-level elevations, in ft NGVD, from June 2007 to January 2010 has been revised. Revised records are available in the files of the U.S. Geological Survey.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 80 ft. Upper casing diameter 4 in; top of first opening 29 ft, bottom of last opening 80 ft.
DATUM - Land-surface datum is 8.70 ft above National Geodetic Vertical Datum of 1929. Measuring point: top of casing, 8.62 ft above National Geodetic Vertical Datum of 1929, Dec. 1, 1947 to May. 2, 1961; top of shelf, 10.26 ft above National Geodetic Vertical Datum of 1929, Mar. 1, 1985 to Apr. 25, 1992; top of recorder shelf, 10.12 ft above National Geodetic Vertical Datum of 1929, May. 11, 1992 to May. 8, 2007; top of flange, 10.1 ft above National Geodetic Vertical Datum of 1929, May. 8, 2007 to present.
PERIOD OF RECORD - December 1947 to April 1961 (daily), May 1976 to May 1980 (semiannual), March 1985 to current year.
GAGE - Electronic data logger.
COOPERATION - Miami-Dade County.
REMARKS - Water levels affected by pumping. Station rebuilt May 1992, May 2007. Well cased to 71 ft, slotted 29 to 71 ft, open hole 71 to 80 ft.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 6.46 ft NGVD, Oct. 15, 1999; lowest, 5.77 ft below NGVD, May 18, 2009.
