1,200 customers had been affected by the fault.
A boil water notice in south Offaly has been lifted with immediate effect.
The advisory had been in place for 1,200 customers supplied by the Dunkerrin Public Water Scheme since September 22.
It followed a mechanical failure at the water treatment plant which affected the disinfection process.
However, Irish Water says the supply has now been deemed safe to drink again after an audit by the Environmental Protection Agency.
Westmeath Hotel Reopening After Norovirus Outbreak
Glasson Lakehouse Hotel is open tomorrow.
Eight Legal Aid Certificates Issued In Laois Amid Solicitors’ Boycott
Eight of 179 certificates issued in Laois since courts returned from their summer breaks.
Ireland Still Faces STEM Gender Gap Despite Strong PISA Results
Ireland continues to be a leading performer in education internationally.
Just Five Of 25 Promised Psychosis Teams Operating Nationally
According to the health service, people in the Midlands are being supported by a team based in Meath.
GAA ‘Not Ready’ For Proposed Integration With LGFA And Camogie Association
Mary McAleese resigned as chair of the Gaelic Games Integration Steering Group.
Offaly Firefighter's 9/11 Memorial Trip Delayed For A Second Day
Phil Keegan along with 40 firefighters were due to fly to New York yesterday.
Drone Incident Evidence Of "Maximum Impact With Minimum Input" - Midlands Defence Expert
A large black drone was spotted off the East coast by an Aer Lingus pilot yesterday.
Drive-Thru Coffee Shop Applicants Appeal Westmeath County Council Decision
Int Inv GP Ltd is looking to overturn a decision by local planners.
