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USGS Water-Year Summary 2024
263813081552801 L 2640.
Intermediate aquifer system
Hawthorn Limestone Aquifer
Hawthorn Limestone Aquifer
LOCATION - Lat 26°38'08.0", long 81°55'27.5" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.20, T.44 S., R.24 E., Lee County, FL, Hydrologic Unit 03090205, in median at intersection of SE 24th Avenue and Birkdale Avenue, 1 mi south of Hancock Bridge Parkway.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 180 ft. Upper casing diameter 4 in; top of first opening 128 ft, bottom of last opening 180 ft. Artesian well, open hole 128 to 180 ft.
DATUM - Land-surface datum is 8.54 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 10.14 ft above National Geodetic Vertical Datum of 1929, May. 26, 1978 to present.
PERIOD OF RECORD - May 1978 to September 1997 (monthly), September 1997 to current year.
GAGE - Self logging vented pressure transducer.
REMARKS - Well was also used for salinity and chloride monitoring, discontinued Sept. 2022. The well was originally open to the aquifer from 128 to 180 ft. The open
interval has collapsed or become obstructed at a depth of 168 ft. Chloride samples are being collected from a depth of 140 ft
and 165 ft. Records of water levels prior to October 1978 are available in files of the U.S. Geological Survey. Documentation
of the highest water level measured on September 5, 1978, is poor. However, the water level is consistent when compared to
L-581. Conductivity and chloride profiles for previous years are available in the files of the U. S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 3.55 ft NGVD, July 20, 25, 2004; lowest measured, 42.89 ft below NGVD, June 10, 1985.
