Potentiometric surfaces of the intermediate aquifer system, west-central Florida, May, 1993
Open-File Report
94-34
By: R. A. Mularoni
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Abstract
The intermediate aquifer system underlies a 5000-sq-mi area including De Soto, Sarasota, Hardee, Manatee, and parts of Charlotte, Hillsborough, Highlands, and Polk Counties, Florida. It is overlain by the surf@cial aquifer system and underlain by the Floridan aquifer system. The potentiometric surface of the intermediate aquifer system was mapped by determining the altitude of water levels in a network of wells and represented on a map by contours that connect points of equal altitude. This map represents water-level conditions near the end of the spring dry season when ground- water withdrawals for agricultural use were high. The cumulative rainfall for the study area was 4.84 inches above normal for the period from June 1992 to May 1993. Hydrographs for selected wells indicated that the annual and seasonal fluctuations of the water levels were generally large (greater than 15 feet) in the central interior region where water demand for irrigation is high during the fall and spring. Seasonal fluctuations were smaller in the northern recharge area where water use is predominantly for public supply. Water levels measured in May 1993 for the composite intermediate aquifer potentiometric surface were lower than those measured in May or September 1992. A cone of depression exists in the potentiometric surface for the composite aquifer system at Warm Mineral Springs, which is a natural discharge point from this system.
Suggested Citation
Mularoni, R.A., 1994, Potentiometric surfaces of the intermediate aquifer system, west-central Florida, May, 1993: U.S. Geological Survey Open-File Report 94-34, 1 Plate: 25.00 x 33.00 inches, https://doi.org/10.3133/ofr9434.
ISSN: 2331-1258 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Potentiometric surfaces of the intermediate aquifer system, west-central Florida, May, 1993 |
| Series title | Open-File Report |
| Series number | 94-34 |
| DOI | 10.3133/ofr9434 |
| Year Published | 1994 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | 1 Plate: 25.00 x 33.00 inches |
| Country | United States |
| State | Florida |