Avoca Sewerage Scheme

Sewerage Scheme

Irish Water is working to end the unacceptable practice of discharging untreated wastewater in Wicklow.

The project will bring benefits in terms of health, integrity of the environment and improved water quality for all. Upon completion the project will:

  • Eliminate the discharge of untreated wastewater
  • Protect the receiving waters and local environment
  • Ensure compliance with the Wastewater Treatment Regulations

Irish Water, working with Wicklow County Council, is progressing with plans to upgrade the wastewater infrastructure in Avoca. The existing Avoca wastewater treatment plant is located off Tower Avenue in Avoca, Co. Wicklow, and serves the agglomeration of Avoca Village.

When originally constructed in the early 1970s, the Avoca wastewater treatment plant provided primary treatment for an estimated design population equivalent of 500 population equivalent (PE). The existing Avoca wastewater treatment plant no longer operates satisfactorily and as such does not provide treatment, resulting in raw sewage discharging directly into the Avoca River.

Irish Water is committed to ending the unacceptable practice of discharging raw sewage in Ireland by constructing wastewater treatment plants and network infrastructure. We are working to ensure that wastewater is adequately treated and meets appropriate standards before being safely discharged into the marine environment.

What is involved as part of this project?

The project will include the construction of a new wastewater treatment plant which will have a capacity of approximately 1,900 population equivalent (PE). The proposed location for the new wastewater treatment plant is adjacent to the existing wastewater treatment plant, refer to Figure 1.

What are the benefits of this project?

Once completed, the new wastewater treatment plant will:

  • End the current practice of discharging untreated wastewater into the Avoca River which will significantly improve the water quality in the river
  • The project includes the capacity for future growth in the area
  • Safeguard human and environmental health
  • Ensure compliance with European regulatory standards

What are the next steps?

Irish Water will be carrying out Site Investigation Surveys and necessary studies in the area over the coming months. This will help inform the preferred option and final design to end the historic discharge of wastewater in the area.

The proposed works will require planning permission and Irish Water is currently preparing the application and progressing through the detailed design phase.

We will endeavour to keep you updated as the project progresses. We will be engaging with the community again prior to the submission of the planning application, where members of the public will be welcome to learn more about the proposed project.

For more information on the improvements Irish Water is making to water and wastewater services across Ireland, please visit our Projects and Plans page.