Ground-water Flow and Stream-aquifer Relations Near the Savannah River Site, Georgia and South Carolina
Clarke, John S.
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Ground-water flow and stream-aquifer relations in the vicinity of the U.S. Department of Energy, Savannah River Site, near Aiken, South Carolina, were evaluated as part of a cooperative study between the U.S. Geological Survey, U.S. Department of Energy, and Georgia Department of Natural Resources. As part of this evaluation, maps showing the approximate configuration of predevelopment potentiometric surfaces were prepared for four aquifers in rocks of Late Cretaceous and Tertiary age and used to evaluate ground-water-flow patterns and stream-aquifer relations in the vicinity of the site. The configuration of potentiometric surfaces indicate that incision of hydrogeologic units by the ancient Savannah River valley is a major control over ground-water flowpaths in the site area. Flow lines on the potentiometric surfaces suggest the possible movement of ground water for a short distance from South Carolina into Georgia in the three deepest aquifers (trans-river flow). The potentiometric surface for the shallowest (Upper Three Runs) aquifer does not indicate the occurrence of trans-river flow.