History of the project

 The process of providing a wastewater treatment plant for Arklow began with the original planning permission being granted to Arklow Town Council in 1994. Due to changes in environmental policy in the following years, a new Environmental Impact Assessment Report (EIAR) was required as part of the planning permission process and in 2005 planning permission for the Arklow Wastewater Treatment Plant was once again granted. This permission expired in early 2015.

Irish Water took responsibility for providing and managing public water services throughout Ireland in 2014. Irish Water is committed to ensuring a new wastewater treatment plant for Arklow is delivered through the development of a new planning process.

Site Investigation Works

Irish Water has completed a series of investigative surveys along the North and South Quays and in Arklow Bay and the estuary of the Avoca River. The information gathered from these surveys will be used in the design of the wastewater treatment plant, interceptor sewers, marine outfall pipeline and intake pipe crossing the Avoca River. The information will also be used in the planning application which will be submitted to An Bord Pleanála in 2018.
The work completed to date includes a number of ecological surveys including bat surveys, water birds surveys as well as identification of invasive species.

Further site investigations are ongoing on the Old Wallboard Factory, North Quay, Ferrybank, Arklow.


An application for a Foreshore Licence was made in June 2016 in order to construct a sea outfall and siphons crossing under the Avoca River in connection with a proposed wastewater treatment plant in Arklow, County Wicklow. 

Irish Water will lodge the following applications in relation to the proposed Arklow Wastewater Treatment Plant, in 2018.

  • A planning application and EIAR to An Bord Pleanála
  • A Foreshore Licence from the Department of Housing, Planning, Community and Local Government
  • A Wastewater Discharge Licence to the Environmental Protection Agency (EPA)
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