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Public hearing under way into Dublin’s new sewage treatment works

Words: Roger Milne
Sewage treatment / iStock-827231964

The public hearing organised by An Bord Pleanála into plans for what would be the country’s second-largest sewage treatment works got under way this week at a hotel in the capital.

Irish Water wants to build a €500 million regional wastewater project at Clonshaugh, east of Dublin Airport. The scheme has triggered more than 14,00 objections.

The proposals involve a new regional wastewater treatment complex, an underground orbital sewer from Blanchardstown to Clonshaugh (to intercept existing flows to Ringsend), a new pumping station at Abbotsown and an outfall pipeline to return the treated water to the Irish Sea. The project also includes a regional sludge treatment centre and an associated biosolids storage facility at Newtown, near Kilshane Cross.

The scheme is set to become operational from 2026 and is designed to provide wastewater treatment capacity for the equivalent of half a million people.

Proposals for a plant to treat sewage from Dublin city and county as well as parts of Meath and Kildare were first draw up nearly 20 years ago but have been the subject of sustained opposition. A site at Portrane was originally earmarked for the project.

Image credit | iStock