As I was saying.....lots of speculation - very little evidence.
I don't think even your friend has a crystal ball either. This armchair scientist is referring to results of sampling to date analyzed by professionals who deal with this. I am hoping for the best, but realize, despite the favourable results so far for drinking water and aquatic life, that much more work is required. I am not saying this is not a bad thing, but there has been quite a bit of eco-babble (as Carl Walters describes it) being spread by individuals with little or no experience with this which doesn't help matters.
For instance, Gord Sterritt of the Upper Fraser Fisheries Conservation Alliance went on record to the media as saying that "this could alter their (Sockeye Salmon) senses, put them in a bit of disarray and stress them out," and "they wouldn't be able to mate and get back to their spawning grounds." Well, first off, Gord Sterritt is not a fisheries biologist, yet the media turns to him for his opinion on this instead of consulting an actual fisheries biologist who would know something about this. It seems like the media gets lazy in actually getting the right people to interview for this type of insight. They would rather default to the sensationalized story instead of getting the facts correct. Second, Gord Steritt doesn't know what he is talking about because it's organics compounds that migrating salmon smell - not metals. Then you have Alexandra Morton who puts out a map of salmon migration and direction of flow in Quesnel Lake, but shows that she has no idea about spawning habitat in the lake and adjacent tributaries.
This accident only happened 2 weeks ago, so I think it's premature to create prophecies of doom and gloom - especially when long term monitoring is going to be required. Right now I don't believe it is really known if those metals will necessarily be in a form that will impact fish and wildlife. I believe that pH of the lake has much to do with that (Dion would know more about that). Should the BC government cuts and regulatory actions prior to this accident receive scrutiny? Absolutely, but those government employees on the ground dealing with this shouldn't be vilified by the public over this.
I believe some are getting too carried away and they provide little or no evidence to back up those claims. So, if this is speaking out of my hat then I am guilty as charged.