The burst mains pipe on the N17 at Anbally has been repaired and the water supply in areas affected has been turned back on.
However, it may take a number of hours before the supply returns to normal for all customers, particularly those in elevated areas according to a spokesperson for Irish Water.
The utility company has apologised to customers for the inconvenience and thanked them for their patience.
Approximately 1,500 properties were affected by this supply disruption across Claregalway, Corofin and the surrounding areas, along the N17 between Claregalway and the Galway City boundary and Group Water Schemes between Tuam and Claregalway.
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