The worst-hit areas included Coill Dubh, Prosperous, Derrinturn, Kilmeage, Robertstown, Allenwood, Ballyhagan, Ballyteague, Killina, Lullymore and Ticknevin.
Kildare residents relying on the Hill of Allen reservoir have faced an average of one water outage a month in 2025.
It is the worst year for disruptions in recent times.
Figures from Uisce Éireann provided to Kildare North Social Democrats TD Aidan Farrelly show there have been 21 outages since January 2023.
Only three outages were planned for system improvements.
Thirteen were due to burst mains.
One outage in July was to conserve water.
Two - in January and May - were caused by reservoir interruptions.
Each outage affected almost 3,000 premises.
The worst-hit areas included Coill Dubh, Prosperous, Derrinturn, Kilmeage, Robertstown, Allenwood, Ballyhagan, Ballyteague, Killina, Lullymore and Ticknevin.
The Public Accounts Committee is expected to invite Uisce Éireann to appear when it returns after the summer recess.

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