Quin Wastewater Treatment Plant Upgrade

Wastewater Project

Investing €4.6 million on upgrades which will improve the capacity and efficiency of the Quin Wastewater Treatment Plant.

Irish Water in partnership with Clare County Council is progressing the delivery of the upgrade to Quin Wastewater Treatment Plant. The existing plant is overloaded and the works carried out will ensure the plant is compliant with EU Urban Wastewater Directives. This project will increase the treatment efficiency at the plant and also mitigate odour issues previously experienced by local residents.

As part of this project Irish Water is investing €4.6 million on plant upgrades, which will both improve treatment efficiency and increase the capacity of the plant. The works are being carried out on behalf of Irish Water by EPS. The existing wastewater treatment plant was originally constructed to cater for a population equivalent (PE) of 740. Following these works the newly upgraded wastewater treatment plant will be able to serve a population equivalent (PE) of 1350.

What are the next steps?

Works commenced in 2019 with minimal impact on the local community. The upgrades are currently on-going and we will endeavour to provide updates on this project as it progresses.

In Progress
€4.6 million


  • The project will improve the quality of water discharged into the River Rine, a tributary of the Shannon
  • The capacity of the wastewater treatment plant will increase, which will accommodate further growth in the Quin area


  • New concrete inlet works comprising of inlet combined screens, manual bypass screen, launder, washpactor, grit removal and grit classifier
  • Construction of new pumping station at Quin on the same site as the existing WWTP
  • Installation of new settlement and Rotating Biological Contractor (RBC) tanks
  • Extend the existing administration control building and install a new SCADA system
  • Construction of site lighting and security provisions
  • New internal access road, kerbing and surfacing works including landscaping and all ancillaries