Jack Owns Land Located Outside Metro City

Jack owns land located outside Metro City.Jack sells the land to Quality Disposal,Inc. ,which establishes a hazardous waste disposal facility at the site.Quality Disposal accepts only waste transported by Regional Trucking Company exclusively from Consolidated Industries,Inc.Several years later,Quality Disposal closes its facility and sells the land to Price Rite Corporation,which builds a Price Rite Discount Store on the site.Meanwhile,some of Metro's citizens complain to the Environmental Protection Agency (EPA)that Metro's municipal water supply is pol?luted.The EPA investigates and discovers that the sources of the pollu?tion are leaks of hazardous waste from what is now the Price Rite prop?erty.The EPA cleans up the site.Who can be held liable for the cost of cleaning up the site? What standards must Metro meet regarding the water?