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Panel deems Mt. Polley breach due to flawed design


In a Jan. 30 media release, an independent review panel delivered the final report on its investigation into the tailings storage failure at Mount Polley mine in British Columbia last summer.

The Mount Polley Independent Expert Engineering Investigation and Review Panel – made up of three geotechnical experts – concluded the Aug. 4, 2014 breach was caused by a failure in the foundation of the embankment.

The breach released about 31 million cubic yards of metals-contaminated matter into surrounding water systems, threatening valuable salmon fisheries in the process.

The report states ...

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