Cantung Mine Cleanup Delayed by Environmental Assessment Controversy

Cantung Mine Cleanup Faces Regulatory Hurdles

The Nahanni Butte Dene Band has raised concerns over a recent decision by the Mackenzie Valley Land and Water Board to initiate an environmental assessment for the cleanup of the former Cantung mine near the NWT-Yukon border. The Board determined the proposed cleanup approach could significantly impact the environment and raise public concerns.

Community Concerns Mount

Chief Steve Vital of the Nahanni Butte Dene Band expressed frustration, stating, "A decade after mining ended at Cantung, we still have no timeline for when the site will be cleaned up." The community, located directly downstream from the mine, argues that the assessment will delay cleanup by at least two years, adding unnecessary bureaucratic hurdles.

Nahanni Butte had previously collaborated with stakeholders for ten years on cleanup planning and requested the regulator skip the assessment to expedite work. They maintain the issues are well understood and the proposal is technically sound.

Divergent Indigenous Perspectives

The Liard First Nation in Yukon supports the environmental assessment, emphasizing ongoing community concerns after years of discussions. Meanwhile, the Łı́ı́dlı̨ı̨ Kų́ę́ First Nation (LKFN) identified "severe technical deficiencies" in the cleanup plan but did not formally request an assessment.

The cleanup process is complicated by Cantung's ownership structure. North American Tungsten Corporation Ltd (NATCL), the owner responsible for cleanup, entered creditor protection in 2015. Current cleanup efforts are managed by Alvarez & Marsal, a court-appointed monitor, with the cleanup plan signed by a senior manager from the firm.

A Complex Legacy

Cantung, a tungsten mine operating since the 1960s, closed in 2015 after decades of fluctuating ownership. The site's location in the pristine Nahanni range adds environmental sensitivity to the cleanup process. With the mine's legacy impacting waterways and ecosystems, the debate over the assessment's necessity highlights broader tensions between regulatory thoroughness and urgent environmental remediation needs in northern Canada.