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Burst main in Pontypandy


Following the repair of the burst main in Broughton, we are continuing the work of refilling the water network. We need to do this very carefully to avoid any secondary bursts.

At a glance

What we want you to know in three points:

  • This incident started on Monday 1st January 2000 at 01:00.
  • Our crews have identified the problem and are on site.
  • Bottled water stations are available.

What has happened?

Following the repair of the burst main in Broughton, we are continuing the work of refilling the water network. We need to do this very carefully to avoid any secondary bursts.

As a result, we know that some customers served by Bryn Edwin service reservoir may have lost their water supplies or may be experiencing intermittent water supplies, low pressure or discolouration.

This could impact parts of Flint, Holywell, Ffynnongroyw, Greenfield, Llanerch y Mor, Mostyn, Oakenholt, Talacre, Whitford and Mancot.

We are currently supporting the water network with extra tankers, and the network has been refilled overnight when overall demand across the network was low.

Which area is affected?

Latest Updates
Our most recent updates on this incident are below, a list of all updates is available here

09:36 July 25 2025

We have lifted the precautionary ‘boil water’ notice that was in place in parts of Rhondda Cynon Taf.

This means that customers are able to drink and use their tap water as normal with immediate effect.

Drinking water supplies are all clear and we can confirm customers are able to use their tap water as normal.

We apologise for the inconvenience this has caused and would like to thank all of our customers for their patience during this time.

Customers can access:

Lifting of Boil Water Notice: Open letter from Peter Perry

Check here for more information and a list of Frequently Asked Questions.

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

If you have any questions, you can call us on 0800 052 0130, lines are open 24 hours a day 7 days a week.

09:36 July 25 2025

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.

09:36 July 25 2025

IMPORTANT: We have issued a Boil Water Notice which affects customers living in the following areas: Blaenrhondda, Blaencwm, Tynewydd, Treherbert, Treorchy, Cwm-parc, Pentre, Ton Pentre, Gelli, Tonypandy

Due to Stom Bert, extensive flooding has impacted Tynywaun Water Treatment Works in Treherbert.

This means that we have now issued a precautionary ‘boil water’ notice to households in Blaenrhondda, Blaencwm, Tynewydd, Treherbert, Treorchy, Cwm-parc, Pentre, Ton Pentre, Gelli and Tonypandy areas.

We ask that all customers boil their water with immediate effect before using it for drinking purposes. We are sorry for the inconvenience this will cause but we are working to restore supplies back to normal as soon as possible.

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

Water bottle stations

Water bottle stations are being set up to assist our customers following the ‘boil water’ notice for areas of Rhondda Cynon Taf.

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

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

Customers can check if their supply is affected by using a post code checker on our website: www.dwrcymru.com/boil-water-notice.

Any customers who are affected can access advice on our website which includes a list of Frequently Asked Questions.

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

What can our customers do during this incident?

We would encourage our customers to:
confirmation Check on relatives, friends and neighbours in the area
confirmation Keep up to date with the latest information
confirmation Let us know if any customers need additional help and support

We would encourage customers to not:
confirmation Fill up your bath with water as supply returns
confirmation Put a clothes wash on until supply returns to normal
confirmation Take more than you need at a bottled water station

Frequently Asked Questions

Compensation

Compensation payments will be made as a result of this incident.

Household Customers

Any household customers who were affected will receive £25 for every 12 hours their supply was affected. This will be paid directly in to your bank account if you pay your bill by direct debit, if you do not pay by direct debit then you will receive a cheque in the post.

Business Customers

Each business customer will receive compensation of £75 for every 12 hours their supplies were affected.

In addition, Welsh Water has also agreed to make goodwill contributions for each business customer towards certain costs/loss of gross profit.

The eligibility, criteria and process for applying for a goodwill contribution towards costs/loss of gross profit is detailed in this guidance and should be read in full before making an application for a Goodwill Payment.

Affected businesses have a duty to take all reasonable steps to minimise its costs/loss of gross profit.

More information about eligibility criteria and how to apply is available here.

Contact Us

Get in touch with us about this incident

Speak to our operations team:

0800 052 0130

24hrs a day, 7 days a week

Direct message us on social media
We can help via Direct Message on Facebook and Twitter.

If you'd prefer to speak to us in Welsh

0800 052 6058

Mon - Fri 8am to 6pm

Text relay for customers with hearing and speech difficulties.
Telephone: 18002 & number you want to call
Textphone: 18001 & number you want to call

Bogus caller / checking a visiting officers identity:

0800 281 141

24 hours a day, 7 days a week