Characterization of Coal Fly Ash Associated with a Release of Fly Ash at TVA’s Kingston Fossil Plant

摘要

TVA, TDEC, and EPA performed soil and ash sampling in the former Dredge Cell, in the embayment, and at several private resi-dences following the release. The objectives of the soil and ash sam-pling were to char-acterize the chemi-cal nature of the ash, determine if the released ash resulted in residual impacts to native soil, and evaluate the potential threat of the released ash to human health and the environment. In addition, characterization of recovered ash was done to as-sess disposal options and to guide potential remediation activities. In early 2010, borings made in a nearby geologic layer ("Knox Group") were sampled to com-pare to overlying soil.