Boil Water Notice!

exclamation icon

Updated: 16:00 03 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.

Is your toilet leaking?


Can you see the water running constantly in the toilet? This can be a small trickle or a stream. You may have a leak.

Send us an enquiry

PDF, 79.6kB

Use the link here or scan the QR code and upload a short video of the problem, and answer a couple of questions. One of our team will take a look at the video and give you a call back within five working days to let you know if we can assist – free of charge, of course! You can also download the QR code here.

Struggling with the video, no problem, use this link to fill out our online submission form.

For more details see the document below.

Generic Document Thumbnail

Help us spread the message

PDF, 444kB

A leaky loo can flush hundreds of pounds down the drain each year. We want to help as many people as we can, and we need your help. Please share the message to anyone who you think would benefit from this service.

Get Water Fit

Sign up to Get Water Fit, claim your water-saving devices and start saving.

Click here