All 11 water firms in Wales England are under scrutiny by Ofwat as part of its major investigation into whether their sewage treatment works are polluting the environment. The water regulator said it showed “how concerned we are about the sector’s environmental performance”. Ofwat announced it had served formal enforcement notices on the four remaining utilities […]

All 11 water firms in Wales and England are under scrutiny by Ofwat as part of its major investigation into whether their sewage treatment works are polluting the environment.

The water regulator said it showed “how concerned we are about the sector’s environmental performance”.

Ofwat announced it had served formal enforcement notices on the four remaining utilities firms – Dwr Cymru Welsh Water, Hafren Dyfrdwy, Severn Trent and United Utilities.

It means it has gathered evidence and found the firms may have breached their obligations to protect the environment, which could lead to fines.