A programme of watermains work is set to launch in County Louth to safeguard the water supply for customers in Dundalk and its environs.

Working alongside Louth County Council, Irish Water is preparing to flush watermains in the area.

Following a large burst in Dundalk in June, manganese sediment became dislodged and carried through the network causing some customers to experience temporary discoloured water. These essential flushing works are required to clear any remaining manganese sediment from the distribution network and reduce the likelihood of future discolouration issues at the customer tap. These flushing activities are part of an overall action plan to address discolouration issues associated with high manganese levels found in the source water that feeds into Cavanhill water treatment plant.

In order to minimise any disruption these necessary works may cause, flushing will be completed in phases. The first phase will commence on Monday 23 August and is expected to be completed by Friday 03 September. While these essential works are ongoing, customers in the following locations will experience temporary discoloured water as sediment becomes dislodged and is removed by the flushing works:

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Dublin Road, Mullagharlin Road, Langfield, Hoeys Lane, DKIT, Louth County Hospital, Glenwood, Muirhevna, Mourne View; Dundalk 600 West, Mounthamilton, Ardee Road, Town Parks, St Malachys Villas, Mount Avenue, Headford, Carrick Road, Carrickmacross Road, Ard Easmuin, Mount Hamilton, Mount Avenue, Lis Na Dara (entire estate), Crowne Plaza, Finnabair Industrial Estate; Muirhevnamor; Inner Relief Road, Aghameen Park, Doolargy Avenue, Hoeys Lane, College Heights, College Manor, Rockfield Court, Kingswood, Lower Avenue Road, Tom Bellew Avenue, Claddaggh Park, Garrybawn, Woodbury Gardens, Greenfield Court, Ashbrook Avenue; Woodvale Manor, Blackrock West, Blackrock, Rock Road, Blackrock Village, Chapel Road, Marlbog Road, Cocklehill Road, Blackrock Road, Greengates, Haynestown, Haggartstown, Marlbog Road and Clermont.

Any customers seeing discoloured water coming from their cold kitchen tap are advised to run the tap for a few minutes to restore the clear colour. If the colour does not restore to clear, customers are advised not the drink the water as a precaution, and should contact Irish Water using the contact details below.

It may take 2-3 hours for normal water supply to return to all customers when flushing is complete but it is important to continue to follow the HSE guidance on hand-washing.

Irish Water is encouraging customers to conserve water while these essential works are underway. 


Donal Heaney, Irish Water, said: "Irish Water and Louth County Council understands the inconvenience caused when flushing works occur and thanks customers for their patience while we complete these necessary works to remove any remaining sediment from the network and restore normal supply to impacted customers. Irish Water and Louth County Council regret any inconvenience caused."