| Abstract |
The David Witherspoon Incorporated 1630 Site (DWI 1630) received, processed, stored, and shipped scrap metal, including metal contaminated with radiological and chemical contaminants. Past site characterization activities identified numerous radiological and chemical contaminants, including uranium, thorium, heavy metals, polychlorinated biphenyls (PCBs), asbestos, and organic compounds. The contaminants have been noted in various media on the site, including debris, soil, sediment, groundwater, and surface water. There were no buildings located in the subject areas during site operations. The DOEs decommissioning contractor, Bechtel Jacobs Company, LLC. (BJC), has performed characterization surveys, subsequent remediation, and final status surveys and sampling within the subject area. The areas have not been backfilled pending results from the Independent Verification (IV) survey. The U.S. Department of Energy (DOE) requested that the Oak Ridge Institute for Science and Education (ORISE) conduct verification surveys of grids at the DWI 1630 Site in Knoxville, Tennessee. During the period from October to December, 2008, an independent verification team (IVT) from ORISE, conducted verification activities in whole and partial grids, as completed by BJC. ORISE site activities included gamma surface scans and soil sampling within 33 grids; G11 through G14; H11 through H15; X14, X15, X19, and X21; J13 through J15 and J17 through J21; K7 through K9 and K13 through K15; L13 through L15; and M14 through M16. |
