Analysis of Ground-Water Withdrawals from a Crystalline-Rock Aquifer Near Lawrenceviille, Georgia
Tharpe, W. Todd
Peck, Michael F.
Chapman, Melinda J.
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Because of the increased demand for water in northern Georgia, many city and county governments are investigating ground-water availability from crystalline-rock aquifers to supplement surface-water supplies. The U.S. Geological Survey and the city of Lawrenceville, Ga., began a cooperative investigation in December 1994 to improve the understanding of crystalline-rock aquifers in the Piedmont area of northern Georgia. Continuous ground-water-level data were analyzed during various pumping conditions to determine local and areal effects of ground-water withdrawals. Two bedrock observation wells, located about one mile from the production well, responded to pumping within about 8 to 13 hours. Water levels in a regolith well, located about 950 feet from the production well, responded to pumping within about 8 hours.