€65m nationally

What was involved?

The programme involved undertaking an assessment of the condition and performance of all the plants, to determine if upgrades to the disinfection systems were required.  Upgrade works at the plants included:

  • Upgrades to the chemical storage and chemical dosing Infrastructure.
  • Construction or upgrades to the chlorine contact time provision systems.
  • Installation of Ultra Violet (UV) disinfection barrier where required.
  • Upgrades to the monitoring instrumentation systems.
  • Upgrades of control, telemetry and automation processes.


  • Improve the security of drinking water quality for residents and businesses in Co. Wicklow
  • Improve disinfection systems and standards.
  • Future proofing the security of supplies.
  • Provide improved control of the systems.
  • Ensure continued compliance with Drinking Water Quality Regulations.

Irish Water’s National Disinfection Programme

​Irish Water is investing over €65 million as part of this National Programme across the country. This programme involves the upgrade and standardisation of disinfection systems currently installed in 864 public drinking water treatment plants, reservoirs and pumping stations.

The programme involves an assessment of all of the plants across the country to identify any necessary improvements. To date, we have assessed 811 sites and completed upgrade works to over 240 sites.

View more projects

Back to the top