Mount Polley Mine Disaster
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| Cause | Failure of tailings pond dam |
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| ID | 2157101 |
About Mount Polley Mine Disaster
The Mount Polley mine disaster is an environmental disaster in the Cariboo region of central British Columbia, Canada, that began 4 August 2014 with a breach of the Imperial Metals-owned Mount Polley copper and gold mine tailings pond, releasing its water and slurry with years worth of mining waste into Polley Lake.