Simulated Effects of Impoundment of Lake Seminole on Surface- And Ground-Water Flow in Southwestern Georgia and Adjacent Parts of Alabama and Florida
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Author(s)
Jones, Lawson Elliott
Torak, Lynn J.
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Editor(s)
Hatcher, Kathryn J.
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Abstract
Hydrologic implications of the impoundment of Lake Seminole in southwest Georgia and its effect on components of the surface- and ground-waterflow systems of the lower Apalachicola-Chattahoochee Flint (ACF) River Basin are being investigated using ground-water modeling. Simulations of pre- and post-impoundment conditions were performed using a modified version of the U.S. Geological Survey finite element model that was developed for a previous study of the lower ACF River Basin. Results of ground-water modeling were used to describe and quantify the stream aquifer-flow system as it existed prior to impoundment and to identify any changes in the surface- and groundwater-flow regime after the lake was filled during 1955–1957. Comparison of simulation results of post-impoundment drought conditions (October 1986) with results of hypothetical pre-impoundment conditions (a similar drought prior to 1955) provide a qualitative measure of the changes in hydraulic head and groundwater flow to and from streams and Lake Seminole and across state lines caused by the impoundment.
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2003-04
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Text
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Proceedings