More than three weeks after the sea crept into their water supply, thousands of people in north Kerry still cannot safely drink what comes out of their taps – and the people affected say they have no idea when that will change.
A “do not consume” notice has been in place on the Ballyheigue public water supply since 7 October, after saltwater was detected in the raw water feeding the local treatment plant. RTÉ reports that more than 3,300 people are affected, and that it is believed to be the first major intrusion of saltwater into a deep underground aquifer in Ireland.
Can’t drink it, can’t boil it
Under the notice, residents must not use tap water for drinking, preparing food, making baby formula or brushing teeth. Unlike a boil-water notice, boiling or filtering the water does not make it safe. It can still be used for washing, bathing, flushing toilets and laundry.
The impact has been felt well beyond the kitchen. RTÉ reports that Glenderry National School, with 130 pupils and 20 staff, is among those affected. Business owners have raised fears about salt damaging equipment and pipes, and farmers are worried about livestock, with a dairy cow capable of drinking up to 200 litres a day.
At a meeting of Kerry County Council earlier this month, councillors described families drawing water from old wells and pumps, schoolchildren spending evenings collecting water, and frustration that bottled water had to be requested online, the Irish Examiner reported. Councillors unanimously passed emergency motions seeking more information and calling for an alternative source at Glenderry to be reopened. The Examiner put the number of affected households at about 3,600, covering the public supply and the Clanmaurice Group Water Scheme.
Why the sea got in
Uisce Éireann has said saltwater entered through an aquifer near the coast – a body of rock or sediment that holds groundwater – according to Radio Kerry. The utility has described the investigation into the cause as complex, involving teams from across the organisation and outside experts.
Coastal erosion and flooding in north Kerry were raised by Sinn Féin councillor Deirdre Ferris at the council meeting, though no official link between those pressures and the contamination has been confirmed. The case is likely to sharpen questions about how vulnerable coastal groundwater supplies are to rising seas and changing conditions.
Options – and ‘a few hurdles’
Brian O’Leary, Uisce Éireann’s regional operations senior manager for the southwest, told RTÉ public health was the priority and that residents would not be kept under the notice any longer than necessary. Options include new groundwater sources in Ballyheigue and recommissioning a disused source at Ardfert, though he acknowledged there were hurdles. He said the original source might recover but described that as a long shot.
He said timelines should become clearer within about two weeks, but warned a permanent fix could take months.
There has been some progress. Around 200 customers in Causeway village have had drinking water restored through a temporary supply from Listowel, RTÉ reports. Uisce Éireann had also been assessing whether the closed Glenderry source – shut on health and safety grounds because of its proximity to the national school – could be brought back into use, according to Radio Kerry.
Fianna Fáil councillor Michael Leane called the utility’s communication “disastrous” and has invited its representatives to a public meeting in Ballyheigue. Residents and the local school principal say they still lack basic information on how long the notice will last and what the long-term solution will be.
What happens next
Uisce Éireann expects to have firmer timelines within roughly a fortnight. Until then, the do not consume notice stays in place, with bottled water and bulk tankers continuing in the area. Residents should follow updates from Uisce Éireann and not use tap water for drinking or food until the notice is formally lifted. A public meeting is being sought in the village, and pressure from local councillors and Oireachtas members is expected to continue.
Sources
- RTÉ: 3,300 in Kerry town without safe drinking water for weeks (30 October 2026)
- Irish Examiner: ‘Get off your arses’: Kerry councillors urge Uisce Éireann to act on drinking water supply issues (20 October 2026)
- Radio Kerry: Uisce Éireann assessing whether disconnected water supply could be brought back into use in North Kerry (21 October 2026)
Featured image: Ballyheigue Beach 1.jpg by Rauenstein, CC BY-SA 3.0, via Wikimedia Commons.
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