BILLINGS, Mont. - Federal regulators knew potentially contaminated bark and wood chips were being sold from a Superfund site in the asbestos-tainted town of Libby, Mont., for three years before they stopped the practice, according to a letter from the Environmental Protection Agency to Senator Max Baucushttp://www.boston.com/lifestyle/green/articles/2011/07/19/epa_says_it_knew_about_asbestos_in_wood_chips/
Article courtesy of The Boston Globe-Green Blog by The Associated Press
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