USGS Water-Year Summary 2024

262228081361901 C 492.

Surficial aquifer system
Nonartesian Sand Aquifer

LOCATION - Lat 26°22'28", long 81°36'19" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.22, T.47 S., R.27 E., Collier County, FL, Hydrologic Unit 03090204, Corkscrew Swamp Sanctuary, north of service road, 0.01 mi west of parking lot, 1 mi west and 0.55 mi north of County Road 846 on County Road 849 and 12 mi north of Immokalee.

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 64 ft. Upper casing diameter 6 in; top of first opening 60 ft, bottom of last opening 64 ft. See REMARKS.

DATUM - Land-surface datum is 18.4 ft above National Geodetic Vertical Datum of 1929. Measuring point: Undefined.

PERIOD OF RECORD - October 1973 to September 1984 (daily), October 1984 to October 1986 (intermittent), November 1986 to current year.

GAGE - Electronic data logger. Prior to November 2020, satellite data collection platform.

REMARKS - Well was used for salinity monitoring until September 2004. Borehole camera inspection indicates that this well is open to the aquifer at a depth of 19 ft and is currently 21 ft deep. It is unknown whether or not the cased depth and well depth that were initially reported for this well were incorrect. It is possible that the casing has separated and the well has filled in with rock from the formation. See WELL CHARACTERISTICS.

EXTREMES FOR PERIOD OF RECORD - Highest water level, 18.95 ft NGVD, Sept. 10, 2017; lowest, 11.76 ft NGVD, June 9, 11, 2008.