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Cwm Taf Water Supply Strategy: Non-statutory consultation: 10 July – 9 September 2024

  • Categories : Press Release
  • 11 Jul 2024
Welsh Water Con

At Welsh Water, one of our top priorities is providing our customers with a first class water supply direct to their taps. To ensure we can continue to do this, we now need to invest in new and resilient water treatment works and associated facilities in the Merthyr Tydfil area.

In 2022, we consulted with the local community and stakeholders on early proposals to build a single new water treatment works near Pontsarn, we have since been reviewing these plans and have developed alternative proposals. We’re in the early stages of design and are now holding a non-statutory consultation to share these early proposals and receive feedback from the local community.

We want to let you know further details on how you can view these proposals, share your feedback and also contact us with any queries you may have.

Our proposals include:

  • An upgrade to our existing water treatment works at Llwyn-onn.
  • A new water treatment works on land in Merthyr Tydfil - Dan-y-Castell Farm.
  • A new raw water pumping station on our existing water treatment works at Pontsticill.
  • New or upgraded raw water pipelines to carry water from the existing reservoirs to the new water treatment works.
  • New or upgraded pipework to carry treated water from the new water treatment works to the existing network and onto customers.


View our proposals online:

We have created a virtual exhibition room – available from 10th July to view our proposals and share your feedback. Here you will find an interactive map which will allow you to view details of the proposed development, including layout and associated infrastructure, such as pipelines.

In-person: You can attend one of our in-person exhibitions and speak to a member of the team.

  • 19th July 10:30am – 7:00pm: Merthyr Tydfil Golf Club, CF48 2NT
  • 20th August - 11:00am – 6:00pm: Gellideg Foundation, The Wellbeing Centre, CF48 1ND
  • 3rd September 2:00pm – 7:00pm: Merthyr Town Football Club, CF47 8RF

Contact us: If you are unable to view our online exhibition or attend one of our events, please contact us on or call 0800 052 0130 to discuss alternative ways to view our proposals.

Once you have viewed the proposals, we would welcome your feedback, if you have any further queries please feel free to contact us using the details above.

This is a non-statutory consultation and is designed to share with you the need for the investment, our proposals, and receive your feedback on these ahead of undertaking a statutory consultation, where you will again have the opportunity to review and provide comments on our plans.

Yours sincerely,
Ian Boothroyd
Head of Water Programme Delivery

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