Water Supplies to Clydach Vale, Pontypridd, Treorchy, Tonypandy and Pentre

First of all can I apologise for the loss of water supply as a result of the major incident we have had on one of our large diameter water mains at Cilfynydd, near Pontypridd. The main in question is a 31"/ 850 mm trunk main which carries very large volumes of water and is effectively a 'transmission' main to support supplies to a wide geographical area. This is why as a result of the incident communities in the Rhonndda and Church Village for example were also affected.These type of mains fulfil a vital role in keeping our smaller mains which serve customers directly full and delivering water at the right pressure. Repairing these type of mains is a major task and because of the operating pressure carries significant safety risks and we have to take this into account as a key priority to protect our people and contractors carrying out the repair.

I am also sorry that deliveries of bottled water to distribution points was not as effective as we would have liked and there are lessons to be learned from this about how we carry out this type of support to customers in future. We did however, successfully deliver bottled water to over 600 vulnerable customers, such as those with medical conditions and the elderly which I hope you will agree were the highest priority in the circumstances.

By early this morning supplies are returning to normal for the majority of our customers , but we are experiencing some 'air locks' in the system , particularly in the Clydach Vale area and we are focusing on on this as a matter of urgency.

If you are currently experiencing any further problems do not hesitate to contact us.

Thank you

Peter Perry

Chief Operating Officer

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Welsh Water is owned by Glas Cymru a single purpose company with no shareholders and is run solely for the benefit of customers.

The Glas Cymru business model aims to reduce Welsh Water’s asset financing cost, the water industry's single biggest cost.

Under Glas Cymru’s ownership, Welsh Water's assets and capital investment are financed by bonds and retained financial surpluses.

Financing efficiency savings to date have largely been used to build up reserves to insulate Welsh Water and its customers from any unexpected costs and also to improve credit quality so that Welsh Water’s cost of finance can be kept as low as possible in the years ahead.