Dr. Michelle Minihan:

There have been some positive developments. We saw Vartry, which serves approximately 127,000 people, removed from the RAL at the end of last year. A large upgrade there has resulted in approximately eight water supplies across north Wicklow and Dublin now being compliant for THMs. That is really significant. Some supplies with persistent THMs will be on our RAL through to 2026, which is far too long. Action, which involves identifying a solution and putting it in place, has been delayed in those cases. We have also seen supplies that had treatment installed for THMs, but that treatment has been unsuccessful and has not worked. We added six supplies to our RAL for persistent THMs over the last 18 months, which means that progress which had been made is being eroded.