New Prosperity mine would have 'adverse environmental effects,' panel finds

In the revamped proposal, Taseko has pledged to spend an additional $300 million to minimize the impacts on Fish Lake, but the federal panel's report found that Taseko underestimated the volume of tailings, water seepage and impacts of recirculation on the water quality in the lake.
"Even with expensive water treatment measures, the protection of Fish Lake water quality is unlikely to success in the long term," the report says.
Local First Nations have been vocal opponents of the project since its inception, claiming it would result in irreparable environmental damage.
http://www.cbc.ca/news/canada/british-columbia/new-prosperity-mine-would-have-adverse-environmental-effects-panel-finds-1.2304255