Households on the Tipperary – Offaly border have had a boil water notice lifted.
Residents of Dunkerrin, Birr and Banagher Public Water Supplies were placed under the boil notice last week.
Meanwhile repairs to a burst water main may cause supply disruptions to Boherduff Close, Hillside Close, Northview Close and surrounding areas in Clonmel
Irish Water says the works should be completed by around 4 this afternoon.
Meanwhile crews are working to repair a burst water main which is hitting supplies to Toureen and Ballydrehid near Cahir.
Essential works may also cause disruption to the water supply to Palmers Hill, The Green, Rockwood and Áras na Rí in Cashel – its hoped supplies will be restored by 11 tonight.