Shannon wastewater treatment plant upgrade

Wastewater Project

This €7.5 million project is needed to increase capacity and ensure environmental compliance.

Irish Water, working in partnership with Clare County Council, is undertaking essential upgrades to the wastewater infrastructure in Shannon, Co. Clare. Ward and Burke Ltd is delivering this project on behalf of Irish Water.

Phase 1 of the upgrade to the Shannon sewerage infrastructure was completed in 2017 and included the construction of a new inlet works, repairs to rising mains and upgrades to the pumping stations.

In early 2020, the next phase of the upgrades to the WWTP commenced which will improve the wastewater treatment performance, increase the capacity at the plant and ensure compliance with the Wastewater Treatment Regulations.  

In Progress
€7.5 million

What is involved as part of this project?

As part of the €7,5 million investment, Irish Water is:

  • Upgrading the Aeration Tanks, Blowers and Final Settling Tanks
  • Constructing new Leachate and Sludge Pumping Stations
  • Upgrading the Instrumentation, Control and Automation processes
  • Upgrades to the Washwater Pump Station
  • Installing new Ventilation and Odour Treatment systems


The works carried out as part of this project will:

  • Modernise and improve the performance of the wastewater treatment infrastructure in Shannon.
  • Ensure compliance with Urban Wastewater Treatment Regulations 2001.
  • Increase the treatment capacity of the plant.
  • Improve water quality in the River Shannon.
  • Provide for growth and development in Shannon and surrounding areas.