Abstract |
The 8-acre Industrial Waste Control (IWC) site, an abandoned coal strip mine, is a closed industrial waste landfill about 8 miles southeast of Fort Smith near Jenny Lind, Sebastian County, Arkansas. Landfilling operations began in the late 1960s or early 1970s and primarily dealt with municipal refuse and debris, and industrial trash. The site received liquid wastes (including methylene chloride, phenols, cresylic acid, and paints), solid wastes, and sludges. In March 1977, surface impoundments overflowed and contaminated a local pond and pastures north of the site resulting in a fish kill in the pond and the death of several cattle. Consequently, the site was covered, recontoured, and closed by the State in 1978. Four areas of contamination have been identified at the site. The selected remedial action for the site includes: installation of a french drain along the south, west and east sides of the site with a synthetic liner or other barrier, excavation and onsite stabilization soil with onsite disposal of residual matrix in the Area C excavation pit. The estimated present worth cost for this remedial action is $11,400,000. |