NATURE OF THE CASE CHAMPION INTERNATIONAL CORPORATION, DAIRYPAK DIVISION, OPERATES A PLANT OUTSIDE OF CLEVELAND, OHIO, FOR THE MANU- FACTURE AND DISTRIBUTION OF POLYETHYLENE COATED PAPER MILK CARTONS. THE MANUFACTURING PROCESS INVOLVES FLEXOGRAPHIC PRINTING OPERATIONS WHICH ENTAIL THE USE OF SOLVENT BASED FLEXOGRAPHIC INKS. THE INK DRYING OPERATION GENERATES HEATED AIR CONTAINING VOLATILE ORGANIC COMPOUNDS (VOC'S) WHICH ARE VENTED INTO THE ATMOSPHERE. ON SEPTEMBER 15, 1983 REGION V ISSUED A NOTICE OF VIOLATION TO DAIRYPAK FOR GENER- ATING VOC'S IN EXCESS OF THE LIMITS PERMISSIBLE IN THE OHIO SIP. DAIRYPAK ACTUALLY EMITS APPROXIMATELY 300 TONS OF VOC'S PERYEAR, IN CONTRAST TO THE 124.3 TONS PER YEAR PER- MITTED UNDER THE APPLICABLE OHIO RULE. THE CLEVELAND AREA IS DESIGNATED AS A PRIMARY NONATTAINMENT AREA FOR OZONE. CAUSE OF ACTION DAIRYPAK'S EMISSIONS ARE IN VIOLATION OF THE OHIO SIP AND, BECAUSE DAIRYPAK IS A MAJOR SOURCE, U.S. EPA IS REQUIRED TO BRING SUIT TO ABATE THE VIOLATIONS AND RECOVER CIVIL PENALTIES, UNDER SECTION 113 OF THE CLEAN AIR ACT, 42 U.S.C. SECTION 7413. PROPOSED REMEDY IN ORDER TO ACHIEVE COMPLIANCE WITH THE OHIO SIP, DAIRYPAK MUST EITHER INSTALL CONTROL EQUIPMENT SUCH AS AFTERBURNERS OR CARBON ADSORPTION EQUI