Georgia Water Science Center SOUTH-CENTRAL GEORGIA GEOHYDROLOGY
PROJECT LINKS USGS IN YOUR STATE USGS Water Science Centers are
located in each state. Hydrogeology and Impact of Pumping on
Shallow Water-Bearing Zones and the Upper Floridan Aquifer,
South-Central Georgia Project Chief: Lester J. Williams During
the drought conditions of 2007, ground-water-level declines in
south-central Georgia have resulted in numerous domestic wells
“going dry,” requiring pumps to be lowered or drilling of
replacement wells. The cause of the declines is unknown but
could be related to reduced recharge during the drought,
increased pumping from the Upper Floridan aquifer, or a
combination of both. Data from the Statewide ground-water
monitoring network indicates that ground-water levels have
declined more than 30 feet in the past 30 years (see graph,
lower right). Additional data were needed to better define the
geologic and hydrogeologic characteristics and the
interconnection between the shallow water-bearing zones and the