Offaly Disinfection Programme

National Disinfection Programme

Irish Water is upgrading Water Treatment Plants across Offaly as part of the National Disinfection Programme.

About this project

Coffey Water Ltd is working on behalf of Irish Water to deliver the National Disinfection Programme across the county.

To date, disinfection systems at Dunkerrin has been upgraded and standardised, with upgrades proposed at several other sites.

Co. Offaly
In Progress
Water Quality

What was involved

‚ÄčThe programme involved assessing the condition and performance of all the sites. We then determined the disinfection systems needed to be upgraded.

Works at the plants included upgrades to the:

  • Chemical storage and dosing infrastructure
  • Chlorine contact time provision systems
  • Disinfection systems using Ultra Violet (UV) barriers where required
  • Monitoring instrumentation systems
  • Control, telemetry and automation processes


The upgrade works carried out as part of this project has:

  • Improved the security of drinking water for residents and businesses
  • Eliminated the risk of boil water notices
  • Improved disinfection systems and standards
  • Future-proofed the security of supplies
  • Provided improved control of the systems
  • Ensured continued compliance with Drinking Water Quality Regulations