Potentiometric map of the Gordo aquifer in northeastern Mississippi, November and December 1982

The Paleozoic rocks that outcrop in Tishomingo County, Mississippi, supply water to public, industrial, and domestic wells in two counties in the northeastern part of the State. Paleozoic rocks in the area consist mostly of beds of sandstone, shale, and limestone which dip about 30 feet per mile to the southwest. The potentiometric surface of the Paleozoic aquifer slopes generally to the west away from the area of outcrop and is strongly affected by large groundwater withdrawals at Corinth. The water level at Corinth has declined about 160 feet from 1954 to 1974 and recovered about 45 feet by 1982. Wells that were near the center of the cone of depression have been replaced by new wells located away from the center.