Ireland private water schemes fail E. coli tests, risk to 200 k consumers

A 2025 Environmental Protection Agency (EPA) report found that 14 of 370 community‑run private water schemes in Ireland failed the required E. coli test, putting roughly 200,000 rural residents at risk of gastrointestinal illness. The EPA also monitored 1,600 registered private supplies serving businesses, schools and nursing homes, of which 67 did not meet the standard.

The report highlighted uneven registration across counties; Cork authorities have recorded about 250 private supplies, while Mayo has only 24 registered, meaning many remain unmonitored. EPA programme manager Noel Byrne warned that unregistered schemes are not routinely inspected, increasing public health concerns. Specific failures included the Tory Island scheme, which serves 1,854 people, and Townawilly in Donegal, which failed the trihalomethane (THM) standard.

EPA officials urged local authorities to work closely with suppliers to identify contamination sources and enforce corrective actions, stressing that supplying unsafe drinking water is an offence under Irish drinking‑water regulations.