A map of the May 1994 potentiometric surface of the Upper Floridan aquifer in west-central Florida depicts ground-water levels for the the annual low water-level period. Water levels, measured in May 1994 were generally lower than those reported for May 1993. In 572 wells with paired measurements, the May 1994 level ranged from 23.43 feet below to 9.92 feet above the May 1993 level and averaged 2.68 feet below the May 1993 level. The decrease in water levels during this period was largely the result of below normal rainfall and an increase in demand for withdrawals or ground water.
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USGS Numbered Series
Potentiometric surface of the upper Floridan aquifer system, west-central Florida, May 1994