"Iver Johnson, who is heading the onsite cleanup effort for the state Department of Environmental Quality, said nearly 30,000 tons of hazardous waste have been removed from the site this year."
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| Report: Arsenic in East Helena water came from soil, not smelter |
Asarco Environmental Manager Jon Nickel says the residential wells showed an average of 9.6 parts per billion of arsenic - just under federal drinking water ...
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