"The discovery that granite can in places be as permeable as the Chalk Aquifer is a little disquieting for repository construction in granite," says Professor Younger.
That's very interesting. Deep permeable granite means something. I suspect if you drilled deep into the hanging wall of one of the Ontario megathrusts, then you would find this. That should be enough for the gov't to start injecting water into these potential earthquake zones! All they lack is a little water. I have a feeling that the granitic basement is permeable under Bruce.