Peoples Natural Gas Co is a superfund site located at 502 E 11th St, Dubuque, IA 52001. The Environmental Protection Agency (EPA) identifies sites such as Peoples Natural Gas Co 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. Peoples Natural Gas Co is currently registered as an Active NPL superfund site by the EPA. Because it is on the NPL (National Priorities List), Peoples Natural Gas Co is considered one of the worst hazardous waste sites identified by the EPA.