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CORNERSTONE GENERAL CONTRACTORS
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Kiewit Infrastructure West Co.
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Graham Contracting Ltd.
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Roger Hickel Contracting, Inc.
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Hensel Phelps Construction Co.
February 20, 2013
ASTORIA, Ore. (AP) — A Department of Environmental Quality study found gas and metals on the site of the former Astoria landfill, which is to be the home of a youth sports complex.
The study found the highest concentrations of contaminates in groundwater, which flushes significantly slower than on the surface. The main contaminants are nondegradable metals, including iron, manganese, arsenic, lead, zinc, mercury and other heavy metals.
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