USGS Water-Year Summary 2024
255526080143001 S - 18. USGS Observation Well near Opa-Locka, FL.
Biscayne aquifer
Biscayne Limestone Aquifer
LOCATION - Lat 25°55'28.7", long 80°14'30.2" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 sec.15, T.52 S., R.41 E., Miami-Dade County, FL, Hydrologic Unit 03090202, in parking lot of the North Dade Regional Library, 0.2 mi south of the Palmetto Expressway (State Road 826), 0.2 mi east of NW 27th Avenue, and 1.3 mi north of Opa-Locka.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 52 ft. Upper casing diameter 8 in; top of first opening undefined, bottom of last opening undefined.
DATUM - Land-surface datum is 9.10 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 10.12 ft above National Geodetic Vertical Datum of 1929, Jun. 1, 1939 to Oct. 1, 1992; Top of base, 10.18 ft above National Geodetic Vertical Datum of 1929, Oct. 1, 1992 to present.
PERIOD OF RECORD - December 1939 to current year.
GAGE - Electronic data logger.
COOPERATION - Miami-Dade County.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 7.14 ft NGVD, Oct. 3, 2000; lowest, 0.99 ft NGVD, June 19, 2011.