Repair works have been completed on the Lough Mask Public Water Supply, with regular water supply returning to affected customers this evening.
An electrical fault at the water treatment plant had impacted water production and some customers experienced discolouration, reduced water pressure or interruptions to their supply.
This was affecting homes and businesses in Williamstown in Galway, as well as the Castlebar area including Breaffy, Turlough Road, Pontoon Road, Ballyheane; Belcarra, Balla, Mayo Abbey; Cong/Kilmaine; Ballinrobe, Kilmaine Road; and Ballinlough, Co. Roscommon.
Multiple group water schemes in the region were also affected by the issues at the water treatment plant.
Padraig Philbin, Uisce Éireann said: “The majority of customers should have their water returned by now, however, it may take until tonight to fully restore to all areas as the water refills the network.”
He added that it will take longest for water to return to homes on higher ground, or premises on the end of the network.
“We understand the inconvenience an outage can have, and we appreciate everyone’s co-operation.”