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Mining Pollutes the World’s Waterways

Mining Pollutes the World’s Waterways

Mining companies are clearly not protecting the waterways near their mining operations. Mining companies dump more than 180 million tons of hazardous waste each year into rivers, lakes and oceans worldwide, according to a report by Earthworks and MiningWatch Canada. The amount of mine waste dumped a year is 1.5 times as much as all the municipal waste dumped in the U.S. landfills in 2009.

Mine processing wastes, called tailings, contain up to three dozen dangerous chemicals including arsenic, lead, mercury and processing chemicals like acids and cyanide. Waste rock, the extra rock that does not contain significant amounts of ore, can also produce acid and toxic contamination.

“The dumping of mine tailings and waste rock pollutes waters around the world, threatening the drinking water, food supply and health of communities as well as aquatic life and ecosystem,” the report declares.

The report looked at 10 of the world’s largest mining companies, and only one BHP Billiton (Australia/UK) has policies that reject dumping in rivers and oceans, but not policies rejecting dumping in lakes. The other companies are:

  • Barrick Gold (Canada)
  • Freeport-McMoran Copper and Gold (USA)
  • Goldcorp (Canada)
  • Newcrest Mining (Australia)
  • Newmont Mining (USA)
  • Rio Tinto (UK/Australia)
  • Teck (Canada)
  • Vale (Brazil)
  • Xstrata (Switzerland)

The destruction of Alaska’s Lower Slate Lake

The report cites examples around the world of contaminated waterways. One of the examples is a U.S. lake, the Lower Slate Lake located in Alaska’s Tongass National Forest. In June 2010, Coeur d’Alene Mines Corporation of Idaho began mining ore from the Kensington Gold Mine. The gold mine is expected to generate an estimated seven million tons of tailings. To hold the tailings, the company drained most of the 22-acre Lower Slate Lake and is currently dumping the tailings into the lake basin, which is “killing all aquatic life,” as the report puts it.

The EPA urged the Army Corps of Engineers to reconsider the permits it issued to the mining company to no avail. Unfortunately, allowing the company to destroy Lower Slate Lake in order to have a dumping ground for its tailings sets a precedent for other companies.  The Pebble mine project of Anglo American and Northern Dynasty is considering dumping tailings into Frying Pan Lake, located near Bristol Bay, Alaska.

How companies and the U.S. government can protect water ways

The report recommends that companies take steps to protect the waterways nearby their mining operations. The recommendations include the following:

  • Produce less waste through building an underground mine, as opposed to an open-pit mine
  • Remove most of the water from tailings and dispose of them in a dump that is lined and covered
  • Put waste rock and tailings back into the pits or underground mines
  • Not mining in certain places that are too environmentally sensitive

The report also recommends something the U.S. government can do to protect waterways from mining waste: fix the loophole in the Clean Water Act which allows mining companies to dump the toxic waste generated from their mining operations into water ways.

Related stories:

Largest Open Pit Copper Mine In the World Pollutes Utah

How Copper Mining Would Ruin Mountains In the Tucson Area

No New Mining Near Grand Canyon for 20 Years

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Photo credits: Flickr user, DieselDemon

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16 comments

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7:55AM PDT on Apr 6, 2012

More and more folks are realizing they need to take water purification into their own hands. Empowering yourself and your family with a gravity-fed water purifier is the smartest choice...

http://www.consciouswater.ca/

Your Pure Source..

3:55AM PDT on Apr 1, 2012

Please folks let as all put these on Twitter and Facebook. All American citizens if you could phone the relevant Goveners, Senators and Congressman, please do so. Thank you

9:28PM PDT on Mar 29, 2012

why are they allowed to destroy a public resource when they do not benefit the public per se?

1:15PM PDT on Mar 29, 2012

ty

8:59AM PDT on Mar 29, 2012

No more mountain top removal.

8:09AM PDT on Mar 29, 2012

So sad, but not surprising.

7:46AM PDT on Mar 29, 2012

Thank you for the article.

7:17AM PDT on Mar 29, 2012

Thank you for the article...

7:15AM PDT on Mar 29, 2012

And its not like these behemoth companies can't afford to dispose of their waste in an environmentally friendly manner. They 'dump' because its a cheap way to get rid of their waste. 'Make 'em pay is the way' through fines when breaking environmental laws.

6:32AM PDT on Mar 29, 2012

"Mining Pollutes the World's Water Ways", an article which would have been just as relevant hundreds of years ago as it is today.

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