Great Western Chem Co is a superfund site located at 5300 N. St Leone Rd, Idaho Falls, ID 83401. The Environmental Protection Agency (EPA) identifies sites such as Great Western Chem Co 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. Great Western Chem Co 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.