Update on Ofwat's wastewater investigation
Friday 16th October 2026
Today (16 October) Ofwat has shared that Hafren Dyfrdwy has breached its legal obligations in the operation of its wastewater treatment works and network.
We accept these findings, and apologise to our customers for these issues that we're making progress in putting right.
Steph Cawley, Hafren Dyfrdwy Managing Director said: “We’re committed in doing our best for the environment, our communities and future generations. We accept Ofwat’s findings and apologise to our customers for these issues that we’re making good progress with resolving. Last year, we reduced average spills to 21.6, from 36.2 the previous year, but we know there’s more to do. We’re currently delivering a multi-million-pound investment, our biggest ever, with £11m on storm overflow improvements alone putting us on track to reduce spills further to fewer than 20 a year by 2030. Our £280,000 redress package will also fund further environmental benefits, making up an investment of £278,000 to create two stormwater balancing tanks, and a £2,000 fund to support the creation of a wetland habitat and tree planting at Llanfyllin Workhouse.”
Notes for editors
- Hafren Dyfrdwy is investing £250m between 2025 and 2030, its biggest ever investment in infrastructure, services and environmental benefits.
- As part of the proposed £280,000 redress package, Hafren Dyfrdwy will be investing £278,000 to install two storm water balancing tanks at Llansantffraid Sewage Pumping Station.
- The company has also offered to work with the Llanfyllin Dolydd Building Preservation Trust to support creation of a wetland habitat and planting of trees at Llanfyllin Workhouse with a £2,000 fund.
- Hafren Dyfrdwy has resolved the compliance issues with Condition P of its licence relating to having adequate resources and systems of planning and internal control (including oversight by senior management and the Board) to ensure assets are performing adequately.