EPA CONDUCTED REMOVAL ACTIONS FROM 1990-1992; ATSDR PERFORMED WORK THROUGHOUT 1990S. OVER $5.2 MILLION IN CERCLA COSTS INCURRED. BEFENDANTS BOUSHEE AND CSI ARE FORMER OWNER/OPERATORS. DEFENDANT CALDWELL INDUSTRIAL SERVICES IS A GENERATOR AND TRANSPORTER. RELIEF SECTION 107(A) COST RECOVERY. IT'S AN ABILITY TO PAY SETTLEMENT.