Del City Tar Pit is a superfund site located at 3000 Block N.e. 4th Street, Del City, OK 73117. The Environmental Protection Agency (EPA) identifies sites such as Del City Tar Pit 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. Del City Tar Pit 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.