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At the time, several residents shared photos on social media of what they described as "black snow."

In an email Friday, Glencore Canada said that in the aftermath of the 2023 incident it released a statement explaining that wind gusts and low snowfall, which led to an exceptional dry stockpile of copper, were to blame. 

The company said in the email that in 2023 it inspected the site, contacted the environmental officials, and conducted a cleanup operation at a cost of several hundred thousand dollars.

"Since then, we have reviewed our stockpile management to prevent a recurrence of such an event," the company said.

Glencore Canada could face a minimum fine of $30,000.

This report by °µÍø½ûÇø was first published Aug. 1, 2025.