Dump In Markham is a superfund site located at 162nd St. And Dixie/western, Markham, IL 60426. The Environmental Protection Agency (EPA) identifies sites such as Dump In Markham 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. Dump In Markham 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.