Pádraig Mac Lochlainn (Donegal, Sinn Fein) | Oireachtas source

At a recent conference in Donegal, a range of international experts presented their findings. One was Dr. Andreas Leemann. I am sure the witnesses will accept that Dr. Leemann is an international expert in this area. He carried out tests on a number of blocks and found the amount of sulphates was seven to ten times the amount allowable under EN 12/620. I am certain the panel will agree that is extraordinary. I repeat there is a quarry in Donegal that I think is what led to this audit and which is responsible for the vast majority of defective concrete block homes. Has that quarry been extensively examined? Can the panel say that quarry has a clean bill of health today?