Glanua Ltd is continuing to significantly progress a major upgrade to the Macroom Wastewater Treatment Plant in County Cork, Uisce Éireann has announced.

The €21m project, which involves the decommissioning of the existing plant and its associated structures as well as the construction of a new facility and related infrastructure in Macroom, has reached a major milestone with over 50% of the works now complete.

The upgrade aims to protect the environment and support the long-term sustainable growth and development of Macroom.  

Throughout 2025, Macroom residents will begin benefitting from the upgrade as part of the new wastewater treatment plant will come into operation, improving the quality of treated water discharged into River Sullane.


This year, the old wastewater treatment plant will be decommissioned, allowing the new infrastructure to become fully operational in 2026. 

Discussing the project and progress made to date, Darran O'Leary, Programme Manager at Uisce Éireann, said: "Macroom Wastewater Treatment Plant is a crucial piece of infrastructure for West Cork. With the existing wastewater infrastructure in the village overloaded and outdated, we are delighted that works are progressing on schedule to modernise and improve the performance of the wastewater treatment in Macroom.

"We are now commencing the next phase of this vital project, which will bring significant benefits to the communities of Macroom and the surrounding areas in terms of growth, health, environmental protection, and improved water quality in the River Sullane." 

For further information about the works, visit the dedicated project webpage.