Mt. Polley Panel Starting from Scratch
Likely B.C.- A three member panel of mining and dam experts will undertake the task of trying to determine why the tailings pond at Mt. Polley breached and there are no leading theories to guide their work.
“I haven’t spoken to anyone, and I have spoken to everyone, who has a theory on why this dam breached” says Mines Minister Bill Bennett. “This shocked everyone, especially the engineers who were responsible for the dam” adds Bennett.
One of the panel members who will be looking for a cause of the breach, Dirk Van Zyl from the UBC mining engineering program, says there are no common causes for such a breach and there are no valid statistics on such breaches “They are all built differently it’s not a statistical data set that is very uniform, but when you look at statistics, the likelihood of failure is very much the same as water dams as well, so it’s in the order of one in one million to one in one hundred thousand per dam year depending on how you look at the statistics, so it is a very rare event and the large failures like this, and the investigations of them, very often would come to conclusions that would say there could have been two or three or four different ways of failure of a specific facility but the most likely is this one.”
Van Zyl says the panel will focus on the technical matters “The failing of the tailings pond at Mount Polley was not only a dark day for mining in B.C, but worldwide” he adds “I can assure you the investigation will be through and rigorous.”
The panel is required to submit its report by January 31st, 2015.
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