Water Resources of Tampa

Provisional Station Information Current through the 2011 Water Year

WELL NUMBER.-- 272012081482501. Marshall Deep Well near Gardner, FL.
LOCATION.-- Lat 27°20'12", long 81°48'25", in NW¼NW¼ sec.22, T.36 S., R.25 E., Hydrologic Unit 03100101, 200 ft east of U. S. Highway 17, and 1.0 mi south of Gardner. Owner: Col. D. E. Marshall.
AQUIFER.-- Floridan aquifer system of the Tertiary System, Geologic Unit 120 FLRD.
WELL CHARACTERISTICS.-- Drilled, unused irrigation, artesian well, diameter 5 in., depth 478 ft, cased to 137 ft.
INSTRUMENTATION.-- Water-stage recorder--60-minute interval.
DATUM.-- Land-surface datum is 62.58 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of casing, 3.12 ft above land-surface datum.
PERIOD OF RECORD.-- November 1962 to current year. Records of water levels prior to January 1974 are available in files of the Geological Survey.
EXTREMES FOR PERIOD OF RECORD.-- Highest daily maximum water level, 55.24 ft NGVD, Mar. 5, 1964; lowest, 8.96 ft NGVD, June 7, 2000.