The environmental impact assessment, by definition, requires that companies present the most conservative case possible so that it can be properly evaluated as to, if all things go wrong, what it would look like.
In the case of the Horizon project that you referenced, we indicate in there that we will release seepage out at 530 metres cubed per day, I believe, or something like that. That's just off the top of my head. That was assuming that the tailings pond was sitting over top of permeable sand material. It assumed that any natural barrier effect that would come out from silt to clays and bitumen sitting on the bottom of the pond would not work, when in fact we know that the tailings pond is sitting over top of Clearwater clay, a very impermeable surface, plus the sand, the silts, the clays, and the bitumens that will seal it.
Through the process of the EIA review to the joint federal-provincial panel, that topic was dealt with in some detail. The decision report that came out addressed that, where in fact the consultants said there potentially could be some issue of concern there, where the panel members themselves said they looked at the evidence provided, recognizing that it is a highly conservative case, and they disagreed with the findings of that, based on the evidence presented to them.
That is clearly evident in our joint panel report that was issued on that.