1. SECTION 106(A) OF THE COMPREHENSIVE ENVIRONMENTAL RE- SPONSE, COMPENSATION, AND LIABILITY ACT ( CERCLA ), 42 U.S.C. SECTION 9606(A). 2. DUTCHTOWN OIL TREATMENT SUPERFUND SITE INTERSTATE HIGHWAY 10 AND LOUISIANA HIGHWAY 74 ASCENSION PARISH, LOUISIANA 3. THE SITE KNOWN AS THE ABANDONED DUTCHTOWN OIL TREATMENT FACILITY IS APPROXIMATELY FIVE ACRES, AND THERE ARE AP- PROXIMATELY 60 RESIDENCES AND AN ELEMENTARY SCHOOL LO- CATED WITHIN ONE-HALF MILE RADIUS OF THE SITE. THE CLOS- EST RESIDENCE IS APPROXIMATELY 165 FEET FROM A CLOSED WASTE PIT. THE SITE WAS USED TO RECYCLE WASTE OIL AND OTHER WASTE MATERIALS, INCLUDING SOLVENTS AND PETROCHEMICAL WASTE, FROM 1965 UNTIL APRROXIMATELY 1982. THE SITE INCLUDES WASTE PITS, A HOLDING POND, ABOVE-GROUND VERTICAL AND HORIZONTAL TANKS, AND A RAILROAD TANK CAR. THE SITE ALSO CONTAINED A SMALL BUILDING AND ABOVE-GROUND PIPING INSUL- ATED WITH ASBESTOS. THE RESPONDENTS LISTED IN THE UAO ALL, BY CONTRACT, A- GREEMENT, OR OTHERWISE, ARRANGED FOR THE DISPOSAL OR TREATMENT OR FOR THE TRANSPORT FOR DISPOSAL OR TREATMENT OF HAZARDOUS SUBSTANCES, OWNED OR POSSESSED BY RESPOND- ENTS, DURING THE TIME-FRAME WHEN HAZARDOUS SUBSTANCES WERE DISPOSED OR TREATED AT THE S