Pittsburgh Smelting And Refining Co Lead Smelter is a superfund site located at 100 W Elizabeth Ave, Pittsburgh, PA 15207. The Environmental Protection Agency (EPA) identifies sites such as Pittsburgh Smelting And Refining Co Lead Smelter 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. Pittsburgh Smelting And Refining Co Lead Smelter 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.