Superfund Site Profile
The 100-acre Mid-America Tanning Company Site is located near Sergeant Bluff, Iowa. The site was operated as a leather tannery from 1970 to 1989. In 1973, the plant began using a chrome tanning process. The process wastewater treatment system produced a sludge that was high in chromium and contained other chemicals. Ultimate disposal of the sludge was by burial in unlined, on-site trenches and land application to on-site soils. When the facility ceased operations in 1989, there was an estimated 5,000 gallons of chromium tanning solution on-site, along with over 500 gallons of sulfuric acid.
The site is located in an industrial park area, while the surrounding land use is primarily agricultural. The Missouri River is approximately 1.5 miles southwest of the site. Groundwater at the site is currently not used for drinking water.
Following cleanup, EPA removed the site from the Superfund National Priorities List (NPL) in 2004. Operation, maintenance, and monitoring of the cleanup remedy are ongoing.