Burst water main affecting some areas of Flintshire

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Updated: 06:00 11 August 2025

We have refilled the network and restored supplies to those areas affected by the burst water main (Flint, Holywell, Ffynnongroyw, Greenfield, Llanerch y Mor, Mostyn, Oakenholt, Talacre, Whitford and Mancot).

However we are aware of temporary discolouration issues affecting water supplies to households in Connah’s Quay. This has been caused as we have needed to move the water around the network to maintain supplies and will be temporary.

We are contacting those customers on our Priority Services Register and those households (text to mobile / landlines) which may be affected.

Some households may still be experiencing discoloured water, but this is temporary. We are flushing the system and customers can also run their taps for a short period to help it clear.

Customers can collect water supplies from our bottled water station at the Jade Jones Pavilion in Flint (CH6 5ER) which remains open as a precaution.

More information is available here. We will also continue to provide updates on In Your Area and on our social media channels.

Local Authorities


Local Authorities are government organisations that are responsible for all the public services and facilities in a particular area.

With regards to water, local authorities have responsibility for checking the safety and sufficiency of all water supplies in their area. For public water supplies this means that local authorities must have effective working arrangements in place with all water companies and licensees who supply water in their area.

For private water supplies, local authorities carry out a risk assessment of each private water supply in their area (except for supplies to single non-commercial domestic dwellings). This assesses the potential danger to human health. Local authorities are also responsible for arranging that private water supplies in their area are monitored to determine compliance with the drinking water standards.

The Welsh Government website has links to each of 22 Local Authorities in Wales. Click here to find out more.