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01/09/2025

Carlow Wastewater Treatment Plant Set For Major Upgrade

Plans for a major upgrade of the Mortarstown Wastewater Treatment Plant in County Carlow are currently being progressed by Uisce Éireann.

The project proposes that the existing capacity at the plant be increased from the current population equivalent (pe) of 38,000 to 58,000, to meet anticipated growth in the region and future demands of the town. In addition, upgrades to the treatment process are required to ensure continued environmental compliance and improve water quality in the River Barrow. These improvements will enable future growth and development in Carlow town and surrounding areas.

Improvements to the wastewater pumping station at Kilkenny Road and the construction of a new pumping station next to the existing Mortarstown Wastewater Treatment Plant site are also proposed. These two stations will be linked by a new tunnelled sewer.

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Paul Fallon, Wastewater Portfolio Delivery Manager with Uisce Éireann, said: "The launch of this project marks a major milestone in supporting the town of Carlow and surrounding areas to grow and thrive through the delivery of essential wastewater infrastructure, while also protecting the environment and improving water quality in the River Barrow. We look forward to engaging with the local community to provide them with more information about this significant planned investment over the coming weeks."

A non-statutory consultation for the Carlow (Mortarstown) Wastewater Treatment Plant upgrade will be launched in the coming weeks. The consultation will provide all stakeholders with an opportunity to provide feedback on the proposed upgrade works in advance of Uisce Éireann's submission of the planning application to An Coimisiún Pleanála.

Further information on the project and upcoming public information event, as well as details on how to engage with Uisce Éireann about the project, will be made available to the public in the coming weeks.

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