Irish Water is expected to say that the current management system which operates water treatment plants, is no longer fit for purpose, when it goes before TDs and Senators later.
The utility will tell an Oireachtas committee there's an urgent need for change.
It follows two incidents in Dublin and Wexford last month which saw contaminated water enter public supplies.
Chair of the Housing committee, Wicklow T.D. Steven Matthews, says what happened is unacceptable:
Most Wicklow Residents Unprepared for Retirement, PTSB Research Finds
Wicklow Property Prices Jump €25,000 In A Year As Supply Tightens
West Wicklow To Receive Major Fire Service Investment Under National Capital Programme
Wicklow to benefit from national investment with two new stations and upgraded equipment to boost emergency response times
Tánaiste Announces €40 Million Investment For Blessington Housing Development
The project will deliver 106 new social homes for families and individuals in West Wicklow.
Major Easter Rail Works Set to Disrupt Wicklow Commuters
Commuters travelling between Wicklow and Dublin are being warned of significant disruption to rail services over the Easter weekend.
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