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Here is a comment posted on a recent blog item:

Jack,

I have been following your blog since the Mt Polley incident.

I am not sure if you have seen the design yet for the proposed copper project located in the Thompson River Watershed near Vavenby. Here is the link to the Knight Piesold report Appendix 3E. http://a100.gov.bc.ca/appsdata/epic/html/deploy/epic_document_333_38590.html

You will have to click on Appendix 3-E to download the PDF.

It looks like they are submerging PAG which results in a huge amount of water storage ( see attached document which shows the supernatant pond volume increasing every year; similar to Mt Polley). Let us hope they have their water quality model correct otherwise it will be a large treatment plant at the end of the life of mine.

Thought you might be interested in seeing what the BC regulators are being presented with even after the Mt Polley disaster. Will industry change to a more conservative approach to tailings designs?

Enjoy your musings.

I went to the site recommended and downloaded the Executive Summary, the section on Geochemistry, and the section on Closure.  Fascinating writings, particularly coming post-Mt Polley.  I hope some readers of this blog take a look at the report and comment.  For this is a public posting of design documents–worthy of repetition.  Now it remains to be seen if such public posting leads to public reading and comment.  For that, afterall, is the purpose of such public posting of designs for new mines and their tailings facilities.

I note that the closure cost estimate is some $16 M.  Presumably that is the basis of the bond being posted?  Comments on its sufficiency would be of interest.  As would comments on the way they plan to deal with acid generating tailings. As would comments on the above comment/question as to whether this is a more conservative design than Mt Polley.

I have not read in sufficient detail to comment with insight.  And maybe no other BC engineer has any more time or inclination than I have to comment.  That is a pity, but inevitable.  Is this a pointed reminder that in addition to such public postings, maybe we should have public posting of the comments by an Independent Tailings Review Board as Morgenstern recommends in the Mt Polley report?  Again your perspective would be welcome.

If you find the materials at the listed site formidable, rather go to the company’s website at this link.   It seems not to have been updated since 2013.  So the BC regulators are faster and more  up-to-date in their posting.

In the current mining downturn, these numbers are impressive:

The project is expected to employ up to 430 hourly and staff personnel. Based on industry experience, approximately 1,000 to 1,200 jobs will be created in the surrounding communities and elsewhere within the province to provide support to the project.

No wonder the BC government is doing all it can to get the word out about the project.

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Here is information about a new, to me, on-line magazine about mining.  The information I received that alterted me to this magazine notes as follows: (more…)

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Inlaid wood floor of the library of the Canadian Houses of Parliament

Continuing the postings on the new CostMine 2014 Survey Results- Canadian Mine Salaries, Wages and Benefits, here are some mine salaries.  First the range and then the average in thousands of Canadian dollars per hour. (more…)

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The hall of the parliament building in Ottawa

It does make a difference to your wages if you work on a Canadian metal or diamond or fossil fuel mine.  Here are some numbers to highlight the differences.  I quote from the new CostMine 2014 Survey Results- Canadian Mine Salaries, Wages and Benefits. Here are some average wages by mined commodity in Canadian dollars per hour.  The first number is for metal mines; the second for diamond mines; and the third for fossil fuel mines. (more…)

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Mike Jacobs of Goldcorp presented the keynote address today at Paste 2014 in Vancouver.  His topic:  Where mining meets the public–and why water is so important? He told us that Goldcorp annually publishes the statistics of the use of water at all its mines.  Commendable. Then he told us of the First Nations prayer ceremonies at the opening and closing of water seasons at their mines.  Incredible. (more…)

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From the recent CostMine U.S. Metal & Industrial Mineral Mine Salaries, Wages & Benefits 2013 Survey Results, here are some figures on Mining Company Executive compensation.  The numbers are astounding, so hold on to your seat. (more…)

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Today I lunched with a professor from one of those old-line, prestigious universities.  He bemoaned the fact that his department has changed. (more…)

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