Louth communities to see the benefits from Irish Water’s progress in improving wastewater infrastructure


Irish Water’s consistent progress in upgrading wastewater treatment and eliminating the discharge of raw sewage to Ireland’s rivers, lakes and coastal areas is benefiting communities and enhancing the environment throughout Ireland.

The latest EPA Urban Wastewater Treatment Report, published yesterday, shows the progress being made, while also highlighting the need for continued investment in our essential wastewater services.

In the last six years, Irish Water has prioritised areas where it can support housing and development and have the greatest environmental impact, particularly in locations where raw sewage was discharging into our rivers and seas.

Over 60% of raw sewage discharges have been eliminated since 2015 – and replaced with treatment capacity for the equivalent of 120,000 people. As a result of the targeted investment in wastewater infrastructure, communities around Ireland are now reaping the rewards of a cleaner environment, safer bathing waters and greater opportunities for the development of new homes, businesses and tourism.

To date new wastewater treatment plants have been built in 17 locations where raw sewage had been discharged into the sea for decades. By the end of this year construction will have started in an additional 14 locations, with a further eight projects due to get underway next year and the remaining nine from 2023 onwards. This means that the majority of raw sewage discharges are on track to be removed by the end of 2025.

In addition to ending the discharge of raw sewage by building infrastructure where none previously existed, Irish Water has also been continuing with its programme of upgrading existing wastewater treatment plants and networks in towns and villages throughout Ireland. In 2020, a total of 10 wastewater treatment plants were built or upgraded (two built and nine upgraded), directly benefiting the equivalent of over 20,000 people in these communities while also protecting our wider environment. The number of plants on the Environmental Protection Agency’s Priority Action List is also continuing to fall, currently down to 97 from 148 in 2017.

In Louth, Irish Water is progressing with plans to end the discharge of raw sewage with the construction of a new wastewater treatment plant in Omeath. Irish Water recently signed a contract with Veolia Water Ireland Limited to complete this essential project and works are due to commence in the coming weeks (Q4 2021). Irish Water is also in the process of upgrading the existing wastewater network in Omeath. This project will be delivered as part of the Shared Waters Enhancement & Loughs Legacy (SWELL) project. A €35m EU-funded project which aims to improve the quality of water in Carlingford Lough and Lough Foyle through the upgrade of wastewater assets on both sides of the border.

Progress is also being made at Dundalk Wastewater Treatment Plant where upgrade works to sludge treatment infrastructure are addressing maintenance and health and safety issues. Irish Water is also delivering an extensive programme of upgrade works at the Drogheda Wastewater Treatment Plant. Works already completed include; odour control unit upgrades; works to three primary settlement tanks and two aeration tanks and the installation of additional temporary treatment at the East Meath pumping station that conveys wastewater to the plant to reduce the potential for septicity of the wastewater. Plans are also progressing to replace the anaerobic digesters on a phased basis over the next two years. Furthermore, a programme of network jetting is being delivered on an ongoing basis to clear general blockages in the network that could give rise to odours.

Michael Tinsley, Irish Water, commented: “Having a modern, sustainable and functional wastewater network is critical in order to protect our environment and to support housing and economic growth in the years ahead. Irish Water is working closely with the EPA and our other partners, including local authorities, to ensure this can be delivered in the most efficient and sustainable way through the use of cutting edge technologies, science and engineering expertise, and meaningful engagement with local communities around Ireland.

“There is no doubt that challenges remain. Much of the infrastructure for safely collecting and treating wastewater around the country has suffered from decades of under-investment. But Irish Water has a plan in place to address these deficiencies and we are making real progress. Continued investment will be required in the coming years to build a modern, fit-for-purpose wastewater network but we are confident that we are on track to achieving that aim.”

One of the key priorities in Irish Water is compliance with the Urban Wastewater Treatment Directive. Due to the work undertaken to address long-standing issues with many wastewater treatment plants, the compliance rates have increased from 71% in 2014 to 93% in 2020.

The largest remaining location that is not compliant with the Directive is Ringsend, which treats 44% of the country’s wastewater load. To address this, Irish Water is investing over €500 million in the staged upgrading of Ringsend Wastewater Treatment Plant. This major upgrade, which is now underway, will allow the Ringsend Wastewater Treatment Plant to treat the increasing volumes of wastewater arriving at the plant to the required standard, enabling future housing and commercial development. The project will deliver, on a phased basis, the capacity to treat the wastewater for a population equivalent of 2.4 million while achieving the standards of the Urban Wastewater Treatment Directive.

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