Reading Railyard Dump is a superfund site located at Klapperthael Junction, Mohnton, PA 19540. The Environmental Protection Agency (EPA) identifies sites such as Reading Railyard Dump 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. Reading Railyard Dump is currently registered as an Archived superfund site by the EPA and does not require any clean up action or further investigation at this time.