Eagle Picher Argo Plant is a superfund site located at 7724-7742 West 61st Place, Summit, IL 60501. The Environmental Protection Agency (EPA) identifies sites such as Eagle Picher Argo Plant because they pose or had once posed a potential risk to human health and/or the environment due to contamination by one or more hazardous wastes. Eagle Picher Argo Plant is currently registered as an Active superfund site by the EPA. However, it is not on the NPL (National Priorities List), which means the EPA does not consider it one of the nation's most hazardous waste sites.