A boil water notice for nearly 10,000 Co Offaly Irish Water customers has been lifted this evening.
The notice was introduced on health grounds last Wednesday evening when E.coli and Total Coliforms were discovered during routine testing on three water supplies to Birr, Banagher and Dunkerrin.
In a statement this evening, Irish Water said it is now in a position to remove the boil water notices from the Dunkerrin, Birr and Banagher Public Water Supplies (PWS) with immediate effect.
The decision was taken following consultation between the HSE, Irish Water and Offaly County Council.
"All due diligence has been taken to ensure the safety of all the users of all three public water supplies arising from the failure of a single sample taken from each of the supplies in Dunkerrin, Birr and Banagher PWS.
"Following further sampling and testing over the weekend we can confirm that all three water supplies are safe to drink," Irish Water said.