Ground-water data for Georgia, 1980

More than 2,000 water-level measurements made in Georgia in 1980 provided the basic data for this report. Daily mean water-level fluctuations and trends are shown in hydrographs for the previous year and fluctuations of the monthly mean water level are shown for the previous 10 years in selected observation wells in Georgia. Monitoring ground-water levels is essential to the understanding of storage changes in a ground-water reservoir or aquifer. Fluctuations and long-term trends in water levels occur as a result of recharge to and discharge from the reservoir. Mean annual water levels across Georgia were from 1.92 feet higher to 12.61 feet lower in 1980 than in 1979, and in some areas were the lowest on record. (USGS)