Any other chemical, material, substances, or contaminant, the exposure to which is prohibited, limited or regulated by any governmental authority or by any Federal, State or local laws, or which the U.S. Environmental Protection Agency ("EPA") or the Missouri Department of Natural Resources ("MDNR") finds may be hazardous to public health or safety, including, but not limited to, Lead, Cadmium, Arsenic, Trichloroethylene ("TCE"), or any other heavy metal or organic solvent which may cause harm to human health and well-being.