Boil Water Notice!

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Updated: 19:00 02 December 2024

IMPORTANT: We have extended the Boil Water Notice which affects customers living in the following areas: Blaenrhondda, Blaencwm, Tynewydd, Treherbert, Treorchy, Cwm-parc, Ton Pentre, Gelli, parts of Pentre, parts of Tonypandy and parts of Ystrad.

Storm Bert resulted in a significant amount of flooding on site at Tynywaun Water Treatment Works and surface water running from the hill onto the drinking water storage tank and impacting the tank.

Our crews have worked 24/7 to put this right but some of the work to prevent damage from future flooding involves installing waterproof membranes around the storage tank.

A period of dry weather is needed to achieve this successfully and our teams are working around the clock to get it done as quickly as possible.

In the meantime, we are continuing to ask all customers in affected areas boil their water before using it for drinking purposes.

We are delivering bottled water to customers on our Priority Services Register and care homes while also working with key sites such as hospitals.

Water bottle stations have been set up and are open in the following locations:

  • Ynyswen Industrial Estate, Ynyswen Rd, Treorchy, CF42 6ED.
  • Rhondda Sport Centre, Geligaled Park, Tyntyla Rd, CF41 7SY.
  • Co-op, Station Road, Treorchy, CF42 6UA.

We are prioritising vulnerable customers, and are asking people to only take what they need.

Customers can access:

Boil Water Notice extension - Open letter to customers from our Chief Executive Peter Perry.

Check if their supply is affected by using a post code checker here: www.dwrcymru.com/boil-water-notice.

Check here for a list of Frequently Asked Questions.

Visit In Your Area or check our social media channels for further updates.

We are sorry for the inconvenience this incident has caused.

Winter Warm Up Event


An event in Rhyl to promote services that will help customers stay warm and well this winter was a great success.

Around 70 customers attended the event, hosted by Welsh Water, at Rhyl food bank and got money saving advice and support from 13 partners including Nest, Citizen’s Advice, Warm Wales and Denbighshire Council.

One customer who attended said: “I really enjoyed the event today, I’m living on my own so having information on the best tariffs has been so helpful, everyone is so friendly so it wouldn’t matter if you came on your own.”

At the event there was a demonstration hosted by the Food Bank on how to use ingredients from a food parcel to create a nourishing meal, including free tasters. There was also a prize draw for two customers to win a slow cooker, which were both handed out on the day. People who attended the event received ingredients to recreate the meal at home, donated by Morrisons in Rhyl.

Tracey Jones, Vulnerable Customer Community Advisor at Welsh Water, led on organising the event. She said: “I’m so pleased with how this event went. As well as speaking to many people about lots of support, we took the details of 15 customers to either get them signed up to one of our social tariffs or our Priority Services Register.

“It’s great to be able to work with partners in this way, out in the community engaging with customers and making a real difference to their finances, especially in the lead up to Christmas.”