Michigan imposes new restrictions, testing requirements on UP copper mine

Michigan imposes new restrictions, testing requirements on UP copper mine

A new air quality permit for the Copperwood mine in Gogebic County requires additional testing for mine vents and emissions and places limits on emergency generators that run on natural gas and emit formaldehyde.

Copperwood Mine receives updated air quality permit — with more testing and limits

A map of the proposed mine site, submitted as part of Highland Copper's air use permit application. (Credit: Highland Copper Company Inc.)This coverage is made possible through a partnership between IPR and Grist, a nonprofit environmental media organization.   The proposed Copperwood Mine in the Upper Peninsula has received a new air quality permit from the Michigan Department of Environment, Great Lakes, and Energy, allowing the project to con…