text: Liability under CERCLA is not dependent upon the intentional disposal of hazardous waste or 
  hazardous substances. It can be founded upon the release or threatened release, even as a result of 
  unintentional, non-negligent or lawful action, of thousands of hazardous substances, including very small 
  quantities of such substances. Thus, even if our landÑlls have never knowingly received hazardous waste 
  as such, it is possible that one or more hazardous substances may have been deposited or ""released'' at 
  our landÑlls or at other properties which we currently own or operate or may have owned or operated. 
  Therefore, we could be liable under CERCLA for the cost of cleaning up such hazardous substances at 
  such sites and for damages to natural resources, even if those substances were deposited at our facilities 
  before we acquired or operated them. The costs of a CERCLA cleanup can be very expensive. Given the 
  diÇculty of obtaining insurance for environmental impairment liability, such liability could have a 
  material impact on our business and Ñnancial condition. For a further discussion, see ""Ì Liability 
  Insurance and Bonding.'' 
  
  (3)*The Federal Water Pollution Control Act of 1972, as amended.*This Act regulates the 
  discharge of pollutants from a variety of sources, including solid waste disposal sites, into streams, rivers 
  and other waters of the United States. Point source runoÅ from our landÑlls and transfer stations that is 
  discharged into surface waters must be covered by discharge permits that generally require us to conduct 