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home : opinions : opinions September 14, 2014


WITC

8/21/2013 1:02:00 PM
Penokee mine will pollute the water
Lee Balek, Couderay


The Penokee Range mining project is designed to be an open pit mine. There is no debate that this type of mining will result in permanent changes to the landscape. If images of open pit mines coming from Michigan and Minnesota aren't bothersome, consider the fact that the Penokee Range site will, without any doubt, impact water resources far beyond northern Wisconsin. Let me explain how.
The Penokee Range mining operation has an elevation of 2,000 feet. It has over 200 inches of snow a year. As such, this area makes up the headwaters of drinking water, both surface and groundwater, for the municipalities of Ashland, Mellen, Highbridge, Merengo, Odanah, and Upson.
Contaminants from the Penokee range will have a significant impact on the water resources downstream, including Bad River, the Kakago/Bad River sloughs and finally Lake Superior.
Older mines followed iron rich veins and were accessible by building shafts. Open pit mines remove all the rock on top of the taconite. This 'waste' rock contains compounds like iron pyrite, which when combined with rain water will produce sulfuric acid which can then leach mercury and other heavy metals from the surrounding minerals.
Since the processing of taconite will require a tremendous amount of water, many questions need to be answered if we are to make informed decisions about this mine.
How much water will be used by this mine, where will it come from and how will it be returned to the system?
What impact will this mine have on surface and groundwater?
What minerals/chemicals will be leached from the exposed rock, including waste/tailings, how will this be contained/prevented from reaching surface and groundwater and how will it be treated?
Where will the toxic slurry of sulfuric acid and heavy metals be disposed of after the taconite is concentrated and treated with lime?
How will this impact native as well as endangered species?
Are there questions you have which need answers?
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Reader Comments

Posted: Friday, August 23, 2013
Article comment by: Randall R. Kniess

Again this is more hype from an overzealous ecology scare monger. Check out these two Mine sites that were open pit operations in the 1970's and 1980's. The Groveland Mine in Michigan (http://traveltips.usatoday.com/fishing-groveland-mine-michigan-36336.html) and the open pit mine at Black River Falls, Wisconsin. ( http://host.madison.com/news/opinion/editorial/learn-from-example-of-wisconsin-s-last-iron-mine-lake/article_9bb22a26-3eea-11e1-bc07-0019bb2963f4.html ) Make a comparison to the the hyped up rhetoric of a person more interested in keeping America from progressing to the benefits of Americans working.



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