Mr. Thomas Campbell:

Based on 77 final reports we have completed with scientific data, pyrrhotite was identified by the labs in 66 cases. That is 86%. The remaining 11 homes had traces of pyrite. In 61 of the 66 homes that have pyrrhotite, or 92%, there were appreciable amounts of pyrrhotite. It is there in large quantities and it is up to the scientists and the geologists to tell us how best to deal with that.