Cantrell Royal G Sia is a superfund site located at W1/2 Nw1/4 Sec18 T1s R14w, Bone Gap Twp, IL 62827. The Environmental Protection Agency (EPA) identifies sites such as Cantrell Royal G Sia 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. Cantrell Royal G Sia 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.