Background

The 13-acre Lawrence Todtz Farm Site is located near Camanche, Iowa. An on-site landfill collected municipal and industrial wastes from 1958 to 1975. DuPont disposed of cellophane process waste in a section of the landfill now known as the impoundment. The impoundment portion of the landfill is a National Priorities List (NPL) Site regulated by the EPA and the Iowa Department of Natural Resources (IDNR). The EPA is the lead agency. The impoundment area is believed to be the source of tetrahydrofuran (THF), carbon disulfide, arsenic, and chromium contamination in groundwater. Remedial activities were completed on the site in 1991. A long-term ...
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