Water Quality Event – Maerdy and Ferndale Area

The Inspectorate is aware of an event affecting supplies in the Maerdy and Ferndale area, on 21 May. Dwr Cymru Welsh Water is taking steps to return supplies to normal. Consumers in the affected area should follow any advice which may be issued by Dwr Cymru Welsh Water, regarding their supplies. The Inspectorate is investigating the event.

Published 22 May 2026
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