From Deseret News archives:
Mine rebuilds trust a pile at a time
Kennecott aims to ease safety concerns through tailings tours
"It's kind of boring," Doughty said during a recent tour. "There's not a whole heck of a lot here."
Yes and no.
A century of digging at Kennecott's Bingham Canyon Mine has resulted in a hole that is two and a half miles across at the top and three-quarters of a mile deep. You can see the hole from space.
Dig a hole, create a monolithic pile or two.
Two public tours of those piles April 23 and one April 26 will give 27 people those who have signed up so far an up-close look at what is essentially the byproduct of moving a mountain 15 miles away in the name of mining over the course of 100 years.
"We want to be open about our operations," Kennecott spokesman Kyle Bennett said.
They'll come looking for answers about seismic stability, risks and public safety related to one pile. Many, some skeptical of Kennecott's word, will want to know more about what they can't see on top of the piles.
Like how Kennecott's newer north impoundment is 3,200 surface acres, with less than one-quarter covered by water that at its deepest is 25 feet or so. Along I-80 the earthen dam holding all that water back is about 80 feet high, with about 65 tons per hour of water and tailings being poured on top.
The north impoundment has been growing since it was activated about eight years ago, with the more coarse tailings used to build a dam around both the standing water and accumulating finer tailings particles that look like gray sand. The impoundment will be about 250 feet high by 2022, about 14 years before the viability of the Bingham mine is expected to run out.
"A lot of alternatives will be evaluated," Doughty said about where to put tailings after 2022.
The 5,700 surface acres of south impoundment, reaching heights of 250 feet, no longer hold water from waste operations. Except for a small pond that forms during heavy rain at a low point on the old impoundment, it's dry.
But the south impoundment, or rather the southeast corner of the old pond, has become the epicenter of controversy lately.
It's become a matter of trust between Kennecott and residents, who live as close as about 1,500 feet from the so-called Magna Corner.
Recent comments
How long has Kennecott been mining there?
It depends on how you...
Anonymous | April 25, 2008 at 4:07 p.m.
How long has kennecott been mining there??? People start building...
Just a Guy | April 20, 2008 at 7:45 a.m.
Kansas is a lot cleaner than Kennecott.
Trust? For the folks who...
Mahonri | April 19, 2008 at 8:25 a.m.
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