Uisce Éireann says the work is part of the National Leakage Reduction Programme
Killylastin Heights and nearby areas in Letterkenny are expected to see disruption to water supply next week due to mains repair works.
The works are scheduled to take place from 2pm until 6pm on Wednesday, September 10.
Uisce Éireann says the work is part of the National Leakage Reduction Programme.
The utility is recommending that affected customers allow three to four hours after the estimated restoration time for supply to fully return.
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