RE:RE:mining.comNever say never. However, the previous operator at Eskay filled in a lake with their tailings (Albino TSF) and started on a second lake. Permits are still valid, I believe. This was not controversial because both lakes have no fish. I don't believe there's water outflow from either of these lakes, but I'm not positive.
The company's ore does contain "deleterious elements", but whether there's release of these nasties into the local water supply in the normal course of mining ops, I really don't know.