Well, there are groundwater inputs to the Athabasca that are there; I mean they're documented. We don't know what the aerial transport depositions are in terms of surface waters. In surface water inputs there aren't any. It's quite obvious there are issues around the health community around Fort Chip, but I don't know what's causing those problems.
By the way, I'm not suggesting it isn't the oil sands; I'm just saying we don't know. I would worry more about trying to determine what the health issues are in Fort Chip and then go back after and look at that.