Uisce Eireann says mains repair works may cause supply disruptions to Ballyholey, Raphoe and surrounding areas today.
Works are scheduled to take place until 3pm this afternoon.
Meanwhile, in North Inishowen, repairs to a burst water main may cause supply disruptions to Malin Head, Ballygorman, Ballyhillion and surrounding areas.
A traffic management plan will be in place for the duration of the works.
Works are scheduled to take place until 4pm this afternoon.
