The U.S. Geological Survey studied the Nanafalia-Clayton aquifer in Alabama as part of a larger project on major water sources. They looked at the water levels, withdrawals, and recharge areas in fall 1982. The aquifer is part of the Southeastern Coastal Plain system, which spans from Mississippi to South Carolina. The researchers mapped out the aquifer's potentiometric surface and found distinct areas for groundwater withdrawal and recharge. This information helps us understand how water moves through this important aquifer system.