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Thompson, B. | RemTEC Summit, February 26-28, 2019, Denver, Colorado. 33 slides, 2019

Nuclear Metals Inc. in Concord, Mass., operated 1958-2011, producing depleted uranium (DU) penetrators and other DU products, beryllium parts, and metal powders. The site was placed on the National Priorities List in 2001. A remedial investigation/feasibility study resulted in EPA's 2015 selection of a $125-million remedy for soil, sediment and groundwater. Buildings were emptied, demolished and disposed of off-site 2011-2016 through a $70-million non-time-critical removal action (NTCRA). Increasing 1,4-dioxane concentrations at a municipal well resulted in the ROD including a second NTCRA to expedite hydraulic containment and ex situ treatment. The success of a field pilot of the innovative Vanox™ ex situ UV advanced oxidation process to address 1,4-dioxane led to the installation of a full-scale treatment system. https://www.remtecsummit.com/ext/resources/Static-Pages/presentations/Bruce-Thompson.pdf.

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