Residents are asked to conserve water as repairs begin Friday on a 280,000-gallon water supply tank that was damaged in the tornadoes on March 2.
The department said water will still be supplied from a smaller supplemental tank.
Utility officials said the county will have enough water for consumption levels. However, they said conservation efforts will help in case of an emergency, such as a fire.
Residents are asked to limit water consumption for tasks such as washing cars and watering lawns.
The repairs are expected to take a minimum of two months.