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Collooney and Ballymote Wastewater Treatment Plants

Wastewater Project

Works completed at two sites in Sligo to improve the water quality in the Owenmore River.

Works are now complete to upgrade the Collooney and Ballymote Wastewater Treatment Plants.

The upgraded wastewater treatment plants provide for a greater capacity and greatly improve the quality of the final effluent leaving the plants. The upgrade works represent a total investment of over €9.9 million which have improved water quality in the Owenmore River and support economic growth and development in Ballymote and Collooney. The works were delivered by Veolia on behalf of Uisce Éireann.

€9.9 million


  • Enhancement in the water quality of the Owenmore River
  • Enhanced critical local infrastructure
  • Removal of impediments to social and economic development


  • Upgraded the existing wastewater treatment facilities to cater for 3,100 population equivalent
  • The construction of a storm water storage tank
  • The construction of phosphorus removal facilities
  • The construction of primary and secondary treatment plants

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