The action would be taken against either consultants or contractors engaged at the plant.
Assistant City Manager Matt Twomey told the Joint Oireachtas Committee on the Environment this afternoon: 'If actions can be taken, they will be taken'.
He disclosed that the Council has engaged solicitors to examine the matter and also engaged technical experts to assist them.
Senior Dublin City Council officials are being questioned by TDs and senators about a report which found serious flaws at the Ringsend wastewater treatment plant.
The 58-page consultant's report identified a significant under-estimation of the amount of sewage coming from commercial premises, like shops, offices and pubs - a gap equivalent to that produced by 190,000 people.
It also found odour levels agreed in contract documents were 20 times greater than previously recommended.
The report on the Ringsend plant, which was commissioned by Minister for the Environment John Gormley, was released last November and the language was blunt.
On the massive difference between EIS specifications on odour and what was contained in the final contract documents, the report concluded this was either 'a serious error of judgement or a mistake'.
After publication, the council would only say it had fully implemented recommendations from other independent consultants, but declined to be interviewed - citing legal reasons.
A council delegation headed by Assistant City Manager Matt Twomey is before the Oireachtas Joint Committee on the Environment to answer questions, along with departmental officials and the Environmental Protection Agency.
