Irish Water today launched a six week public consultation on the proposed new covered reservoir, to be built at the existing reservoir site in Stillorgan, County Dublin, in advance of submitting a planning application to Dún Laoghaire-Rathdown County Council. The Stillorgan Reservoir has supplied drinking water to the community for 150 years. Plans are underway to improve this facility in order to make the drinking water safer and more secure. Irish Water is now inviting the local community and all other interested stakeholders to have their say as part of a public consultation.

This new covered reservoir is essential to safeguard the quality of the drinking water for 200,000 customers. Irish Water has already invested €3.4 million in a new system to improve the disinfection of drinking water stored in the Stillorgan Reservoir. Following this investment, the Environmental Protection Agency (EPA) removed the Stillorgan Reservoir from the Remedial Action List (RAL). The long term solution to upgrade the reservoir is now being progressed.

Public Consultation
This non-statutory public consultation will take place for six weeks from Wednesday, 3 August to Wednesday, 14 September 2016, during which time the proposed plans can be viewed at Irish Water has published a scoping report which sets out the issues to be considered in the Environmental Impact Statement (EIS) and is now inviting feedback from the general public and other interested parties. As the appearance of the site is changing, Irish Water is also inviting views on how the final site will look.

Submissions can be made to Irish Water by Wednesday, 14 September 2016, as follows:

  • Email:
  • Post: FAO Stillorgan Reservoir Project, Colvill House, 24-26 Talbot Street, Dublin 1
  • Telephone: LoCall 1890 815 661 (9am-5pm Mon-Fri)

Information evenings will also take place on Thursday, 25 August and Monday 5 September 2016 at Glenalbyn Sports Club, Glenalbyn Road, Stillorgan between 4.00pm and 8.00pm, the project team will be available to answer any questions you may have on the project. Irish Water intends to submit the EIS with a planning application to Dún Laoghaire-Rathdown County Council in autumn 2016. A period of statutory consultation will then be undertaken by the County Council.

Commenting on the announcement, Geoff O’Sullivan, Head of Major Projects at Irish Water, said “Safeguarding the quality of drinking water is a top priority for Irish Water. We have committed to investing approximately €80 million to ensure the upgrade to the reservoir provides the long term solution that is required to secure the water supply. This is part of a national investment plan which is being implemented on the basis of greatest need under our 25 year strategy, the Water Services Strategic Plan.”

Subject to planning permission being granted, it is anticipated that construction will commence in 2018 and is anticipated to last approximately two years.

Further information is available at


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