definiens: means any notice, claim, act, cause ofaction or investigation by any person alleging potential liability ( includingpotential liability for investigation costs, cleanup costs, governmentalresponse costs, natural resources damages, property damages, personal injuriesor penalties ) arising out of, based on or resulting from ( i ) the presence, orrelease into the environment, of any Hazardous Materials ( as hereinafterdefined ) or ( ii ) any violation, or -20-<PAGE > 27alleged violation, of any Environmental Laws . means allfederal, state, local and foreign laws and regulations relating to pollution orthe environment ( including ambient air, surface water, ground water, landsurface or subsurface strata ) or the protection of human health, including lawsand regulations relating to emissions, discharges, releases or threatenedreleases of Hazardous Materials, or otherwise relating to the manufacture, processing, distribution, use, treatment, storage, disposal, transport orhandling of Hazardous Materials . means chemicals, pollutants, contaminants, wastes, toxic substances, radioactive and biologicalmaterials, asbestos - containing materials ( ACM ), hazardous substances, petroleumand petroleum products or any fraction thereof