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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Black & Veatch. - United States. Hazardous Site Control Division. - Asarco Inc. - CH2M Hill (Firm)
    Publication info: Mont.?, U.S. EPA?, 1987
    Holding Institution: Montana State Library
  2. By: Appleton, Harold C., - Santa Rosa (Calif.) - CH2M Hill (Firm)
    Publication info: Sebastopol, Calif, Harold C. Appleton, 1990
    Holding Institution: Sonoma County Library
  3. By: United States. Forest Service. - CH2M Hill (Firm)
    Publication info: Salmon, Idaho, U.S. Forest Service, 2003
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library