TUA serves as the municipal water source for the city of Tullahoma and the surrounding area.
Currently, TUA serves 9,600 water customers. The system maintains 270 miles of water mains and eight elevated water storage tanks with a total storage capacity of four million gallons.
TUA's water customers use an average of 3 million gallons of water each day. TUA purchases potable water from the Duck River Utility Commission, whose source is Normandy Lake.