B.C. announces independent investigation for tailings pond breach

B.C. orders mines to conduct investigations after tailings breach

Mines Minister Bill Bennett also appointed panel to conduct an independent investigation of Mount Polley dam failure


VANCOUVER – The British Columbia government has ordered every mining operation in the province to conduct safety inspections following a massive tailings pond breach at a gold and copper mine.

Mines Minister Bill Bennett said Monday those audits have to be completed by Dec. 1 and must be reviewed by outside engineering firms. There are currently 98 tailings ponds at 60 metal and coal mines in B.C.

He also appointed a three-member panel to conduct an independent investigation of the dam failure in the central Interior region.

“Everything is on the table — government regulations, government policies, how we do business is on the table,” Bennett told reporters.

“This independent review will get at what happened and whether our processes were adequate, and whether the mine’s processes were adequate … all those kinds of things will be looked at in this case.”

Related from Maclean’s:

Calling the incident a disaster, the minister said the independent inquiry will be paid for by Imperial Metals (TSX:III), owner of the Mount Polley mine where two weeks ago 10 million cubic metres of waste water and 4.5 million cubic metres of silt poured into a network of salmon-bearing lakes and rivers near Likely, 600 kilometres northeast of Vancouver.

Bennett said the panel of geotechnical engineers and mining experts will investigate the cause of the failure, as well as provincial standards, the design and maintenance of the dam, and inspection regimes. The panel will have the authority to compel testimony and evidence, and will make recommendations by the end of January 2015.

This investigation is in addition to a probe already under way by the province’s chief inspector of mines and Conservation Officer Service.

So far, there have been no leading theories for the collapse, Bennett said.

“This shocked everyone, I think, especially the engineers who were responsible for the dam,” he said. “It’s not like these tailings dams are way up in the middle of nowhere and nobody pays any attention to them. They’re monitored 24 hours a day, seven days a week.”

Bennett said he will take full responsibility if the panel finds his ministry was at fault, without elaborating.

The province announced an agreement with two area First Nations that will see the Williams Lake and Soda Creek Indian bands each receive $200,000 to cover costs associated with the spill, such as hiring experts for their own water tests and hosting community meetings.

The bands will also receive the independent investigation report prior to its public release.

“We don’t have the technical experience that’s required to do the assessments out there, so we do have to place our confidence somewhere,” said Chief Ann Louie of the Williams Lake Indian Band.

“The government is being held accountable for this, so I’m sure that the people that have been selected are the best in the world as they have indicated. If not, and there are issues with it, the time will come when that has to be dealt with.”

B.C.’s Environment Ministry said over the weekend that initial toxicity tests on the slurry from the mine show the waste poses no risk to humans but may harm aquatic life. Testing will continue for an undetermined period of time.

Imperial Metals officials have said there was no sign of trouble. However, an environmental consultant’s report three years ago had warned the pond was growing at an unsustainable rate.

The report by Brian Olding and Associates Ltd. also criticized the company for not having a contingency plan in the event of a tailings pond failure.

The Association of Professional Engineers and Geoscientists of BC, the B.C. Green Party and the Opposition New Democrats all welcomed the inquiry.

But appointing a panel does not equate full accountability, said Norm MacDonald, the provincial New Democrats’ mining critic.

“The minister must wait to hear what the panel says before finding his ministry free from blame, and he must also immediately release all permits, requests, reports, and inspection documents related to Mount Polley, and pledge to release all documents uncovered by the investigation, along with the report, as soon as they are available,” MacDonald said in a statement.