Facility Decontamination and Chromium Cleanup

Columbia Colstor Inc., Woodland, Washington.

Project involved removing sodium bichromate residues from concrete surfaces inside the cold storage warehouse, flushing the inside of approximately 450 pieces of sprinkler pipe and 1500 small parts, removing and containerizing contaminated soil, conducting wipe sampling inside the cold storage warehouse to confirm cleanliness at the subject facility, collecting soil, solid waste, and liquid waste samples to determine regulatory status, completing treatability testing at a local laboratory, attempting to complete onsite treatment of the chromium liquids using redox chemistry and ion exchange, arranging for waste disposal at a licensed TSDF, and preparing several reports for the Washington Department of Ecology.