As the Galway Advertiser reports, Ciarán Hayes told a special meeting of the council last Monday 15 April that he "would not like the impression to go out that we would allow sewage to be discharged, it's not".
Hayes was responding to questions from Cllr Catherine Connolly with regard to tenders issued for the upgrading of the treatment plant, which forms part of the Galway Main Drainage Stage 3 and which has been approved for funding from the Department of Environment.
He added that the current system is licences by the Environmental Protection Agency (EPA) and "is in accordance with industry best practice".
Meanwhile, the meeting also discussed a proposed extension of pedestrian access to Mutton Island lighthouse, which as previously reported on Afloat.ie was opened to tour groups last year after extensive refurbishment since 2005.
The Galway Advertiser has more on the story HERE.