Operable Unit 2, USS Lead Superfund Site
Update - Oct. 2018
On Sept. 20, 2017, EPA entered into an administrative settlement agreement and order on consent with USS Lead, where the company will perform a remedial investigation and feasibility study of operable unit 2 of the Superfund site with EPA oversight. OU2 includes soil at the former USS Lead facility, as well as groundwater beneath both that facility and the residential neighborhoods.
USS Lead conducted preparatory activities and site assessment work in 2018. USS Lead will install the monitoring wells in the OU1 residential neighborhood in November and will continue sampling at the USS Lead facility in the winter and spring of 2019. EPA will be overseeing monitoring well installation and sampling activities during the winter.
EPA conducted additional sampling in basements as part an investigation into potential risks associated with exposure to groundwater. Similar groundwater use and basement evaluations previously conducted in Zone 3 determined that groundwater is not used for drinking purposes or household use in the neighborhood. All residents are connected to East Chicago municipal water, which uses Lake Michigan as its water source. Previous sampling in local basement sump pumps found that skin contact with sump water did not pose a health risk to residents.