Uisce Éireann’s Clonmel water supply upgrade project has reached another significant milestone, with two thirds of the planned 15km of new water main now laid.

The major investment to upgrade the Clonmel Water Supply involves:
- An upgrade to the treatment facilities at Monroe Water Treatment Plant (WTP)
- The installation of 15km of new water mains
- Upgrades to Rahronan pumping station which will connect the Monroe supply to the Clonmel North Reservoir and Poulavanogue network.
The project will also provide for a more secure water supply to those currently supplied by the existing Monroe WTP from the large Clonmel North Reservoir.
Once the Monroe WTP upgrade works are complete, customers who were supplied from Poulavanogue WTP will now be supplied from Monroe WTP.
The project, which represents a multi-million-euro investment in water infrastructure, will strengthen the resilience of the water supply for homes and businesses across Clonmel and surrounding areas.
The upgrade of the Monroe water treatment will also shortly commence and will further support the delivery of a robust water supply in the area. The rationalisation of the Poulavanogue supply is planned for Spring 2026, after which customers currently on that supply will be connected to the upgraded Monroe treatment plant.
Commenting on the progress, Uisce Éireann Programme Manager Darragh Hannon said:
"We are pleased to have made such significant progress in the pipelaying installation works and appreciate the patience of the community in Clonmel as we carry out these essential works. This project will significantly enhance the reliability of the supply in the area and forms part of a wider investment in critical water infrastructure by Uisce Éireann across the county".
The project, which commenced in September 2024, is being carried out by Shareridge on behalf of Uisce Éireann and is estimated to take approximately 18 to 24 months to complete.
Uisce Éireann is investing heavily in drinking water infrastructure across Tipperary, with multiple projects underway and planned across the county this year.
In addition to the Clonmel water supply upgrade project, upgrades are also underway at Goatenbridge, Glenary and Glenbeha Water Treatment Plants, while from a wastewater point of view, upgrade works have recently been completed in Newport and are ongoing at the Fethard Wastewater Treatment Plant.
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