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Areal variation in recharge to and discharge from the Floridan aquifer system in Florida

Water-Resources Investigations Report 88-4057

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Abstract

This report is a revision and update of existing recharge maps of the Floridan aquifer system to include quantitative information derived from Regional Aquifer Systems Analysis models as well as other recent information and also includes information on discharge from the system. The report represents predevelopment conditions with inset map that describes the change in recharge resulting from development. Recharge is greater in areas where the Floridan is unconfined, poorly confined, or the overlying confining layer is breached by sinkholes, such as is commonly found in the area extending from Tallahassee to Tampa. Discharge from the Floridan is dominated by spring flow. Spring flow is common in the area between Tallahassee and Tampa. Offshore discharge by upward leakage and submarine springs also is an important component of the flow system. Little inflow or outflow occurs from the Floridan in large areas of Florida, including south Florida and the extreme panhandle. The principal factors affecting recharge to the Florida aquifer system are the thickness and hydraulic conductivity of the overlying confining bed. Other factors of importance include the vertical hydraulic gradient, water available for recharge, and aquifer transmissivity. (USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Areal variation in recharge to and discharge from the Floridan aquifer system in Florida
Series title:
Water-Resources Investigations Report
Series number:
88-4057
Edition:
-
Year Published:
1988
Language:
ENGLISH
Description:
6 maps on 1 sheet : 1 col. ; sheet 88 x 99 cm.