leakage

It also said there had been no "confirmed leakage of personal information of customer data".

Asahi said there had been no "confirmed leakage of personal information of customer data" and its European operations, including the UK, were not affected.

Whoever takes on the role would have the job of keeping check on Welsh Water, which last year was given significant multi-million pound fines over leakage and other complaints.

Southern Water's figure for daily leakage is slightly lower, at 91 million litres.

According to Thames Water's leakage performance report for 2023-24, the leakage was the lowest ever annual level on its network.