The Minister for Arts and Tourism has said expert examination of the National Aquatic Centre yesterday has shown no evidence of any leakage or subsidence.
Mr O’Donoghue said the evidence "flies in the face" of the "wild allegations" that have been made recently in the Dáil, the media and elsewhere.
In a statement, Mr O’Donoghue said those making claims about leaks at the west Dublin-based centre should be held accountable.
"Over the past week we have heard a sustained series of elaborate claims related to the soundness of the structure of the National Aquatic Centre.
"Alarmingly the developers, Rohcon, were repeatedly refused access to the centre to investigate the veracity of these claims and had to go to the High Court to gain this access," Mr O’Donoghue said.
"These allegations were accepted as fact by many, including members of the Opposition who brought us this news and called on the Taoiseach and myself to be accountable. These were claimed as fact even though the owners of the building, the Irish people, were not allowed access to inspect the allegations."
Mr O'Donoghue claimed the motivation of those who made the allegations was political. He said the centre was delivered on time and within budget for the Special Olympics in 2003. It would be the centrepiece of the ongoing development of world-class sporting facilities here, he added.
Construction firm Rohcon, which built the €62 million National Aquatic Centre, yesterday rejected claims that its representatives observed leaks from the centre's pools during a technical examination on Monday.