Mr. Aidan O'Connell:

Many thanks for that. At the time we examined the issue in Donegal and Mayo, it was initially identified as being a mica issue primarily in Donegal and a pyrite issue in Mayo. I have looked at a large number of the properties in Donegal and Mayo. Pyrrhotite in itself was not being identified as a problem. Currently, pyrrhotite is not identified as being a causation of the problem. It has been identified as being present. I caution the Deputy or anyone else against saying that the automatic presence of pyrrhotite or any other type of material is necessarily a cause for alarm.