IPC OPERATED A FACILITY AT THE SITE BETWEEN 1971 AND 1984. IPC WAS A WASTE OIL RECYCLER, INDUSTRIAL WASTE STORAGE FACILITY, HAZARDOUS WASTE TRANSPORTER. IN THE EARLY 1970'S IPC OPERATED AN INCINERATOR TO DISPOSE OF HAZARDOUS SUBSTANCES INCLUDING CYANIDE WASTE. WASTE MANAGEMENT UNITS AT THE SITE INCLUDED AN ABOVE GROUND STORAGE TANK WITH A 100,000 GALLON CAPACITY, SEVEN UNDERGROUD STORAGE TANKS WITH CAPACITIES RANGING FROM 10,000 TO 20,000 GALLONS, AND A WASTE LAGOON. BOTH THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY AN U.S. EPA INVESTIGATED THE SITE AND TOOK SAMPLES FROM THE SITE. BASED UPON THIS INFORMATION, U.S. EPA DID A HAZARD RANKING SYSTEM SCORING AT THE SITE AND PLACED THE SITE ON THE NPL IN 1988. AFTER THIS, U.S. EPA PERFORMED A SERIES OF SITE ASSESSMENTS AND ISSUED A UAO TO A GROUP OF PRP'S TO PERFORM CERTAIN REMOVAL ACTIVITIES. THE UAO WAS ISSUED IN 1991, AND THE PRP'S PERFORMED THE SURFACE REMOVAL WITH U.S. EPA OVERSIGHT. AT THE SAME TIME, THE STATE OF ILLINOIS ENTERED INTO A COOPERATIVE AGREEMENT WITH U.S. EPA TO PERFORM A PRP SEARCH AND TO ISSUE SPECIAL NOTICE AND NEGOTIATE A CONSENT DECREE FOR PERFORMANCE OF THE RI/FS. IN 1991, A GROUP OF PRP'S ENTERED INTO A PARTIAL CONSENT DECREE WITH THE STATE OF ILLINOIS FOR PERFORMANCE OF THE RI/FS. U.S. EPA HAS APPROXIMATELY $400,000 IN OUTSTANDING COSTS FOR RESPONSE ACTION TAKEN AT THE SITE. THESE COSTS SHOULD BE COLLECTED TO REIMBURSE THE FUND AND