Maybe just to add on to the concern about hydrology and water contamination, I think just in its simplest form, oil sands mining is removing oil from the sand, using it in market conditions, and then putting the sand back. Then, with respect to the water that's in the sand, the trick is to get the right recipe of putting the sand back. It's sand and clay and water, which are essentially the three components of the recipe, and we need to get that right mix so that it's a stable landscape, and then of course cover it with what we call “overburden”, which is heavy clay, rocks, and heavy materials that are non-sand in nature. The topsoil, which was carefully removed and stockpiled before the mining was done, is then placed back on top of that overburden. So that's the reclamation process in its form.
With respect to hydrology and contamination, all of the operations have monitoring wells around our facilities, around our tailings ponds, between our facilities and water courses, whether it's streams or rivers, and we're monitoring any potential seepage of contaminants into these water courses. So it's something that's part of our licences and part of our operation to ensure that this is not happening.