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CH2M HILL Plateau Remediation Company is the prime contractor for the safe, environmental cleanup of the Central Plateau at the Hanford Site. The Hanford Site, part of the U.S. Department of Energy's environmental management program, is the largest environmental cleanup project in the nation.Construction for sludge retrieval


CH2M HILL Plateau Remediation Company awarded more than $1 billion in contracts to small businesses, including $670 million awarded to Tri-Cities area small businesses.

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Progress Update

  • Buildings

    157 buildings removed as of December 2013

  • Groundwater

    5.4B gallons of groundwater treated as of December 2013

  • Footprint

    331 square mile reduction in the cleanup footprint as of December 2013

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