In August, it produced unsafe water for 10 consecutive hours.
Naas councillors want assurance on the quality of drinking water from the Ballymore Eustace Water Treatment Plant.
The facility is Ireland's largest water treatment plant, serving 750,000 people in Kildare and Dublin.
It's emerged that, in August, it produced unsafe water for 10 consecutive hours.
Irish Water was ritcised for taking a number of days to inform the EPA and the HSE about the issues.
Two councillors, Fine Gael's Evie Sammon and Labour's Anne Breen, want reassurance on the standard of water produced there
Cllr. Sammon, furthermore, wants Kildare County Council to request a meeting with Irish Water.
Both motions will come before the October meeting of the Naas Municipal District for debate.

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