I really can't comment on that. I'm not familiar with the other provincial standards. In Ontario, we basically deal at our level of government. It's probably more of a question for the Ministry of the Environment as to what kind of coordination they do with other provinces. I'm very familiar with only the Ontario standards, having worked in the Ontario system for over 30 years.
I would guess that maybe the professor would have a better answer than I would, because she's done studies across.... We just follow the guidelines. The Ministry of the Environment actually puts us under an order to address the issues to their standards.