Around 8,500 people in Galway has been impacted by boil water notices during 2025.
The main areas affected were Tuam, Dunmore and Glenamaddy, while those on the Tully-Tullycross network were impacted by water restriction notices last year.
The Environmental Protection Agency's latest report shows nationally almost 200,000 people were affected by boil water or restriction notices last year.
The number of public water supplies considered 'at risk' has fallen from 45 to 35.
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However, the EPA's Program Manager Noel Byrne says Uisce Éireann must continue investing in treatment plants to protect public health.
