we do occasionally get incidents like this anyway don't we?
Indeed. Our EU neighbours a few weeks ago:
Irish Times - 20 September 2021
Q&A tainted water: What happened at two treatment plants?
Problems emerged at Ballymore Eustace in Kildare and Creagh in Gorey, Co Wexford.
But was this just another alert without any real problems?
No, a lot of people became ill. According to the Health Service Executive at least 52 reported illness, but the real number would be difficult to ascertain...
Dublin was not affected but GPs in Gorey began to notice some nasty gastroenteritis-like illness...from early September. And because e-coli is involved...
But how could this happen?
Well in the case of Gorey, it followed a power failure and a chlorine pump failure...Ballymore Eustace produced unsafe drinking water for up to 10 hours in August due to the loss of a cryptosporidium treatment barrier compounded by inadequate disinfection.
Irish Water has apologised but has also made clear that there was an inexplicable reporting delay by Wexford County Council staff on the ground.
www.irishtimes.com/news/consumer/q-a-tainted-water-what-happened-at-two-treatment-plants-1.4679127