Approximately 120,000 people across the country have no water this lunchtime following Storm Éowyn.
An additional 150,000 people are now being supplied by schemes where generators have been deployed by Uisce Éireann crews.
Supplies for a further 275,000 people are at risk in areas where power is yet to be restored.
The impacts are being felt nationwide, with areas without water across the North West and in counties Kerry, Clare, Tipperary, Cavan, Monaghan, Longford and Laois.
Updates on local supplies issues will be provided on the Úisce Eireann website, www.water.ie, as they become available.
Uisce Éireann repair crews are on the ground across the country today working to restore supplies and are actively sourcing and deploying generators at sites where power has not been restored.
The work is being done in close coordination with the ESB to prioritise power restoration. They are also liaising with other agencies including the National Emergency Co-ordination Group and local authorities.
Head of Water Operations at Uisce Éireann Margaret Attridge said that while positive progress had been made overnight, the number of people now experiencing loss of supply due to power outages may increase as reservoir levels drop.
“This unprecedented storm event has had a severe impact on our water and wastewater network nationwide. Our crews are on the ground in all impacted areas working to restore water service as quickly as possible, but given the extent of the damage to the power network, it may take some time before full service is restored everywhere. We ask for the public’s continued patience during this challenging time.
“In locations where water supplies have been impacted for longer periods we are deploying alternative water supplies. Details of these supplies and their locations will be posted across our website and social media channels as they become available,” she said.
Ms Attridge is also urging customers to conserve water where possible in order to protect supply while the outages are resolved.
There are some simple steps people can take to conserve their water, such as avoiding the use of water-intensive appliances during this time.
To learn more about conserving water, visit www.water.ie/conserve.