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.
IRHA President Calls For More Haulier Supports
Rosenallis's Ger Hyland is repeating calls for HVO fuel supports.
Retired Surgeon Calls For Real Time Defibrillator Map
Peter Naughton worked as a Consultant Surgeon in Portlaoise Hospital and has prepared a defibrillator map.
Protest Held Over Shannon Pipeline
Around 50 boats took part in a rally on Saturday to oppose the largest water project in the State's history.
Government Putting Pressure On Excise Duty Cuts
Longford-Westmeath TD Robert Troy says it's a volatile situation.
Inquest Into Death Of Offaly Man Who Died While In Prison Adjourned
There are concerns of missing CCTV footage.
Longford-Westmeath TD Expresses Concern On National Children's Hospital
It's after building targets are set to be missed for the 18th time.
Niall Horan Says He Doesn't Overthink When Writing Music Anymore
Tickets go on sale Thursday next week for his tour.
US Sends More Troops As Middle East Conflict Intensifies
On day 25 of the war, Israel and the US continued bombings.
Gardaí Investigate Suspected Candle Fire In Fatal Offaly Blaze
The investigation is still at an early stage.
Woman Hospitalised Following Offaly Crash
A car and tractor were involved in a crash in Tullamore this morning.
Westmeath Gardaí Seek Info On Dog Bite Incident
A woman was bitten by a dog in Mullingar.
Niall Horan Announces Irish Tour Dates
The Mullingar man is releasing his new album.
Planning Application Submitted For Major Westmeath Development
The decision is due by May 17th.
Westmeath Student Claim €3K Prize At EirGrid’s CleanerGrid competition
The award was presented to the winners by a panel of expert judges.
EPA Highlights Persistent Pollution Issues Nationwide
89 inspections were carried out in the Midlands.
EU Australia Trade Deal Will Protect Irish Farmers - Barry Cowen
Talks between the two parties began in 2018.
Post Mortem Of Offaly House Fire Victim To Take Place Tomorrow
The post mortem at Midland Regional Hospital will determine the Gardai's next steps.
TUS Seeking New Governing Body Members
The panel oversees accountability for the university's actions, including its Athlone campus.
Smaller Class Sizes To Curb Teacher Retention Crisis - TUI
A new Schooldays.ie is highlighting stress and burnout across the profession.
Offaly Hotel Wins Social Media Award
The County Arms Birr picked up the honour at the first ever Wedding Venue Awards.
