Aug 28, 2018

Mount Polley four years after the tailings dam breach: business as usual

Collapsed Mt. Polley tailings dam wall, four days after the breach. Photo: Richard Holmes

“If you asked me two weeks ago if this could have happened, I would have said it couldn’t.”

Imperial Metals president Brian Kynoch, spoke these words at a news conference on August 5, 2014, the day after the devastating collapse of a tailings dam at one of Imperial’s operations, the Mount Polley copper and gold mine.

More than 24 million cubic meters of water filled with metals-laden mining waste, or tailings, spilled into Polley Lake, down Hazeltine Creek and into Quesnel Lake — an important source of drinking water and spawning territory for one quarter of BC’s sockeye salmon.

Investigations into the disaster have revealed that Imperial Metals should have known that a breach was likely. A 2010 inspection report uncovered by Vancouver Sun reporter Gordon Hoekstra had identified concerns about the integrity of the tailings storage facility including a large crack in the perimeter wall and broken instruments for measuring water pressure. The company had received warnings that the amount of effluent held back by the dam exceeded authorized levels, despite nine increases to the dam’s embankment height since its construction in 1997. Workers employed at the Mount Polley Mine had expressed concerns about dam safety to management — and even to the BC Ministry of Energy and Mines — but these were ignored.

Workers employed at the Mount Polley Mine had expressed concerns about dam safety to management — and even to the BC Ministry of Energy and Mines — but these were ignored.

How could this have happened in a place like British Columbia, Canada, understood by its citizens and seen by others as a “developed” country, a beacon of stability and democracy?

When the Fundão tailings dam collapsed one year later in Mariana, Brazil, it seemed more believable that a South American country would have the kind of lax regulation that could lead to a disastrous spill. Brazil, after all, is located in the Global South, often portrayed as “developing,” endemically corrupt and politically unstable.

A closer look at the mining disasters in Mount Polley and Mariana, however, reveals remarkable similarities in the circumstances leading to both breaches, as well as in the responses afterward by mining companies, governments and civil society.

In both cases, the mining companies enjoyed close relationships with political parties and government officials, making significant financial contributions to major parties, lobbying intensively and advancing narratives blurring the distinction between mining industry interests and what is genuinely in the public interest.

Those narratives centre on the idea that mining investments bring economic growth and job creation (with no consideration of mining’s environmental and community impacts, nor any reference to issues of Indigenous rights). The mining discourse regularly denigrates regulatory measures as needless red tape lain by inefficient government bureaucrats. Yet had robust compliance and enforcement mechanisms been in place, experts suggest that both dam breaches could well have been prevented.

As The Tyee reported, mine inspections in BC had been reduced by nearly half since 1991. Further, only one year after the disaster, with investigations still underway, then-BC Premier Christy Clark announced new support for mining including $6 million to reduce permit turnaround times.

Clearly the BC government had come to see its role as serving the mining industry, rather than defending the public interest. Indeed, a 2016 report evaluating the provincial government’s oversight of the mining industry by BC’s Auditor General concluded that the Ministry of Energy and Mines was at risk of “regulatory capture.”

The mining companies made significant financial contributions to major parties, lobbied intensively and advanced narratives blurring the distinction between mining industry interests and what is genuinely in the public interest.

A change in government in May 2017 raised expectations of major changes. The new government has taken important steps, including committing to implementation of the UN Declaration on the Rights of Indigenous Peoples, banning corporate and union political donations, and undertaking a review of BC’s controversial “professional reliance” model. There has been silence, however, on the Auditor’s central recommendation: to address the “irreconcilable conflict” of having one government ministry tasked with both promoting and regulating mining.

In the meantime, mining company practices have not been substantially overhauled. The Mount Polley Mine resumed operations in June 2016. To date no one has faced fines or punitive measures.

The more one analyzes the tailings dam disasters at Mount Polley and Mariana, the clearer it becomes that these breaches were not one-off events but point to systemic issues. If regulatory capture continues and extractive industries fail to make major changes to how they operate, more catastrophic tailings dam failures will surely take place.


Judith Marshall is the author of Tailings dam spills at Mount Polley and Mariana: Chronicles of disasters foretold, published through the Corporate Mapping Project (CMP) by the Canadian Centre for Policy Alternatives, the Wilderness Committee and the Brazil-based research group, PoEMAS. The CMP is a six-year research and public engagement initiative jointly led by the University of Victoria, the Canadian Centre for Policy Alternatives’ BC and Saskatchewan Offices, and the Alberta-based Parkland Institute. This research was supported by the Social Science and Humanities Research Council of Canada (SSHRC).

This piece originally appeared in the Vancouver Sun.

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