Effects of Drought on Stream Discharge and Ground-water Levels Near Lake Seminole, Southwestern Georgia and Northwestern Florida, October 1999 - August 2000
Mosner, Melinda S.
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Stream discharge and ground-water levels were measured during Fall 1999, and Spring and Summer 2000, along selected stream reaches near Lake Seminole, southwestern Georgia—northwestern Florida. Baseflow was measured at 12 locations along Spring Creek, Fishpond Drain, and along the Flint, Chattahoochee, and Apalachicola Rivers and their tributaries. Ground-water levels were measured in 76 wells throughout the area surrounding Lake Seminole. Stream discharge and ground-water levels were highest in spring and lowest in summer; stream discharge in spring was almost four times greater than in summer. Although stream discharge and ground-water fluctuations during this period followed typical seasonal variations, continued drought conditions and ground-water pumping during the growing season limited the degree to which ground-water levels recovered during Winter and Spring 2000; as a result, less ground water contributed to the baseflow of streams than during normal conditions.