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.
Midlands Gardaí Appeal For Witnesses To Fatal Crash
Two people died in the collision.
Midlands Security & Defence Analyst Says Hoax Bomb Threats Aimed To Intimidate
Newstalk, Today FM and RTÉ were sent the false alerts by email yesterday.
Almost €446,000 Allocated To Midlands Community Centres And Clubhouses
Ballinahown Community Hall received the highest amount in Westmeath.
Two People Killed In Offaly Following Fatal Crash
One person has been killed in the collision.
Midlands Family Takes On Ireland’s Fittest Family Challenge
The series continues this weekend.
5K Fundraiser To Support Motor Neurone Disease Association Takes Place In Westmeath
The event is taking place tomorrow.
No Slowing Down With Age As Westmeath Bowlers Shine At 14th Annual National Bowls Competition
Woman Appears In Court Over €280k Cannabis Seizure In Midlands
20kg of cannabis was discovered in the vehicle on the M7 in Portlaoise.
