Environmental Contamination means the introduction or presence of Hazardous Materials at such levels, quantities or location, or of such form or character, as to constitute a violation of federal, state or local laws or regulations, and present a material risk under federal, state or local laws and regulations that the Premises will not be available or usable for the purposes contemplated by this Agreement.
Contaminate means the addition of sediment, any other pollutant or waste, or any illicit or prohibited discharge.
Hazardous Material means anything defined as a hazardous waste, hazardous substance, toxic substance, hazardous material, pollutant, or contaminant or similar term under an Environmental Law
Hazardous Substance means any chemical, pollutant, waste or substance that is (a) listed, classified or regulated under any Environmental Law as hazardous substance, toxic substance, pollutant, contaminant or oil or (b) any petroleum product or by product, asbestos containing material, polychlorinated biphenyls or radioactive material.
Hazardous Materials means all explosive or radioactive substances or wastes and all hazardous or toxic substances, wastes or other pollutants, including petroleum or petroleum distillates, asbestos or asbestos containing materials, polychlorinated biphenyls, radon gas, infectious or medical wastes and all other substances or wastes of any nature regulated pursuant to any Environmental Law.