Kinnegad in Westmeath is among those listed as having a failure in infrastructure.
Sewage from the equivalent of 77,000 people in 36 towns and villages is released into the environment every day without treatment.
Half of the raw sewage comes from Arklow, Cobh and Kilmore Quay, according to the Environmental Protection Agency.
There are also 21 large towns and cities, including Dublin and Cork, where waste water treatment did not meet EU standards.
Kinnegad in Westmeath is among those listed as having a failure of infrastructure - with outdated facilities under-performing and occasionally breaking down in 2018.
Andy Fanning from the EPA says Irish Water needs to get on top of the issue:
Midlands First Aid Expert Urges Public To Learn Stroke Signs
Construction Industry Flags Biodiversity Costs In New Building Designs
Strike At Offaly Food Plant Called Off
Westmeath Restaurant Owner Pleads Guilty To €3m Arson Incident
RTÉ Faces Fresh Payments Scandal As NUJ Calls For Transparency
Offaly TD Backs Micheál Martin Despite Party Leadership Pressure
Midlands MEP Calls For EU Action To Slash Energy Prices
Midlands Towns Improve Scores In Tidy Towns Competition
Judge Set To Issue Final Instructions For Jury On €8.4m Midlands Cocaine Case
Planning Permission Lodged For Flood Relief Scheme In Laois
NUJ Criticises Potential Policing Committee Media Ban
New Westmeath Library Opens Its Doors Today
Puska Brother Attacked In Prison
Enterprise Department Confirms Over 80 Westmeath Jobs At Risk
Offaly Teacher Pays Tribute To Colleagues After Winning STEM Award
Asthma Society of Ireland Hold Workshop In Laois This Weekend
Laois TD Calls For Shorter Ambulance Deployment Distance
Uisce Eireann Publish Shannon Pipeline Consultation Submissions Report
70% Of Farming Families Lack Succession Plan
Mental Health Charity Triple Counselling Sessions After Citywest Protests