For the Atlantic region, industrial activities are quite a bit different from what they would be in Alberta. I'll answer from the perspective of the Atlantic region, and perhaps Dr. Hrudey could expand on Alberta.
Within the Atlantic region, industrial effluents don't pose a tremendous challenge for many of the first nations. There are maybe one or two communities that would be challenged. Given the remoteness and the proximity of where their surface water or groundwater systems are, the impacts might be less. But certainly in other places, in Ontario, Quebec, and certainly Alberta, challenges with impacts from industrial pollution could be significant.