ABSTRACT
Groundwater contamination case studies provide an appreciation for the range of release modes and contaminant behavior one might expect to encounter at different contamination sites. The rate of migration of 1,4-dioxane relative to that of chlorinated solvents is among the more interesting attributes of this contaminant. This chapter provides several case studies profiling migration patterns, treatment solutions, and responses to drinking water contamination. The Seymour community experienced problems with the Seymour Recycling Corporation (SRC) site beginning in 1976. Residents complained about air and surface-water discharges migrating from the site, which they blamed for health problems. 1,4-Dioxane is associated with soil, groundwater, and sediment at the SRC site. The soils were contaminated by 54 organic chemicals, including high concentrations of 1,1,2-trichloroethane, carbon tetrachloride, 1,1,2,2-tetrachloroethane, and trichloroethylene. The presence of 1,4-dioxane in the groundwater was discovered by placement and sampling of monitoring wells during the remedial design phase of the project.
