PURSUANT TO SECTION 107 OF CERCLA, THE U.S. SEEKS TO RECOVER RESPONSE COSTS AND OBTAIN A DECLARATORY JUDGMENT OF LIABILITY RELATED TO THE DISPOSAL OF HAZARDOUS SUBSTANCES AT THE SITE. PAST RESPONSE COSTS INCLUDE COST FOR RI/FS, RECORDS OF DECISION, AND THE REMEDIAL DESIGN FOR THE OU1 REMEDIAL ACTION. DEFENDANTS OKON AND BAUREIS REALTY ARE OWNERS OF THE SITE, CALDWELL TRUCKING AND GENERAL HOSE ARE SITE OPERATORS & THE OTHER DEFENDANTS ARE GENERATORS WHO ARRANGED FOR DISPOSAL AT THE SITE.