Mount Polley

• B.C. ministers sign off on expansion at Mount Polley mine

  The B.C. government has granted consent for a proposed expansion at the Mount Polley copper and gold mine that could extend its operations for another two years until 2033.

  Politics

  Aug 28, 2025
  
• B.C. court rejects challenge of Mount Polley dam, says consultation was ‘deep’

  The B.C. Supreme Court has dismissed a First Nation's bid to stop a tailings dam from being raised at the Mount Polley mine site, 11 years after a catastrophic collapse.

  Environment

  Aug 6, 2025
  
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• Judge orders limit in Mount Polley tailings dam deposits amid court challenge

  The B.C. Supreme Court has ordered that the Mount Polley mine limit the tailings it deposits into its storage facility while a First Nation challenges an addition to the dam.

  May 10, 2025
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• First Nation takes B.C. government to court over Mount Polley dam expansion

  In March, the province approved the raising of the mine's tailings dam by four metres, saying it was necessary to manage spring runoff.

  Environment

  Apr 18, 2025
• B.C. allows Mount Polley tailings dam to go higher

  The B.C. government is allowing the height of the Mount Polley tailings dam to be raised, a decade after a similar storage site burst.

  Environment

  Mar 27, 2025
• 15 charges laid in Mount Polley mine breach more than 10 years after collapse

  Fifteen charges under the federal Fisheries Act have been laid against Imperial Metals Corp. more than 10 years after a tailings pond collapsed the Mount Polley mine.

  Environment

  Dec 10, 2024
• Engineers disciplined eight years after Mount Polley mine disaster

  Three engineers have been disciplined nearly eight years after British Columbia's worst mining disaster.

  Environment

  Mar 13, 2022
• Updates to B.C.’s tailings code after Mount Polley disaster an improvement: auditor

  B.C.'s chief auditor of mines found changes to the province's tailings storage requirements made after the Mount Polley disaster have generally improved mining waste management.

  Environment

  Jun 19, 2021
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• Deadline looms for charges against Mount Polley mine owners for 2014 disaster

  Prosecutors in Ottawa have until Sunday to lay charges under the Fisheries Act against Imperial Metals, but more serious federal charges could come later.

  Environment

  Aug 3, 2019
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• Mount Polley mine to suspend operations due to sagging copper prices

  Imperial Metals is shutting down operations at British Columbia's Mount Polley Mine.

  Jan 7, 2019