You just can't use this one for a comparison. I excluded it from my study for a number of reasons.

If you think water is an issue just wait till the people get started. Most of the world doesn't know this but a lot of mines are putting up barbed wrie fences and having to duck pot shots. The gov't will have to tax a lot more and the mines will have to shell out for local safety. CBC Radio did a good piece on mining and the trend in these countries is getting worse fast not better.