Welsh Water will pay out £44.7 million after failures in its sewage network led to a series of spills.
The payout follows serious breaches identified by regulator Ofwat, which concluded the company failed to properly operate, maintain, and upgrade its wastewater systems to handle sewage and wastewater volumes.
The redress package, totalling £44.7 million, was proposed in March and has now been formally accepted by Ofwat, after a consultation period.
Senior director for enforcement at Ofwat, Lynn Parker, said: "Our investigation found serious and unacceptable breaches in how Dwr Cymru Welsh Water has operated its wastewater assets which has resulted in excessive spills to the environment.
"With this investigation now concluded, we expect the company to focus on putting things right so that customers can regain trust in their water company."
Ofwat stressed that the payout will not be funded by customers.
Dŵr Cymru will pay a £44.7m enforcement package, after breaching their legal obligations relating to the service they provide for the environment and their customers https://t.co/NI8BbwQkfA pic.twitter.com/lxRYWr42jL
— Ofwat (@Ofwat) June 5, 2026
How the £44.7m Welsh Water payout will be used
Of the total £44.7 million payout, £40.6 million will be directed towards reducing sewage spills, lessening environmental harm, and addressing groundwater intrusion into the sewer network.
An additional £4.1 million will be used to improve river quality in extremely sensitive catchments.
Welsh Water has acknowledged its shortcomings and outlined steps it is taking to address the failings.
The company said: "While the company recognises performance remains below the standards customers rightly expect in a number of areas, there have been early signs of improvement during 2025-26."
It confirmed the funding package will help reduce storm overflow spills, tackle groundwater infiltration, and enhance river water quality.
Here at Welsh Water, we want you to know that we have lots of support available if you’re worried about your water bill.
Our friendly team are waiting to speak to you. Ask us about our financial support options or find out more online at 👇 https://t.co/yzpRr5SKam pic.twitter.com/I3OQzGGLQ5— Welsh Water (@DwrCymru) May 31, 2026
Chief executive of Welsh Water, Roch Cheroux, said: "We know that in some areas we have not delivered the level of service our customers and communities expect, particularly on environmental performance.
"That is why we are investing at record levels to improve resilience, strengthen ageing infrastructure and deliver more reliable services, while keeping bills as affordable as possible."
Welsh Water customers face rising costs
Despite the enforcement action, Welsh Water customers are facing rising costs.
In April, bills increased by 4.8 per cent for 2026-27, taking the average annual bill from £652 to £683.
Have you noticed a change in your Welsh Water bills recently? Let us know in the comments below.
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