Tosco Corp Duncan Refinery

Tosco Corp Duncan Refinery is a superfund site located at 4 Mi S On Old Us 81, Duncan, OK 73533. The Environmental Protection Agency (EPA) identifies sites such as Tosco Corp Duncan Refinery 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. Tosco Corp Duncan Refinery 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.