BADGER PAPER MILLS, INC., IS A MAJOR SOURCE OF SULFUR DIOX- IDE IN VIOLATION OF APPLICABLE WISCONSIN REGULATIONS AP- PROVED AND ENFORCEABLE UNDER THE CLEAN AIR ACT. BACKGROUND AND NATURE OF CASE ON JUNE 25, 1983, WISCONSIN DRR MONITORING VANS RECORD- ED THE FIRST IN A SERIES OF AMBIENT SULFUR DIOXIDE CONCEN- TRATIONS IN PESHTIGO, WISCOONSIN, THAT VIOLATED THE NAACS PRIMARY (HEALTH RELATED) STANDARD. BADGER PAPER MILLS, INC. IS THE ONLY MAJOR SOURCE OF SULFUR DIOXIDE IN PESHTIGO AND ON DECEMBER 13, 1983, REGION V ISSUED A NOTICE OF VIOLATION TO BADGER FOR VIOLATION OF WISCONSIN SIP REGULATION NR 154. 12(1). NR 154.12(1) IS PART OF THE FEDERALLY APPROVED AND ENFORCEABLE WISCONSIN SIP. IT PROHIBITS A SOURCE OF SULFUR DIOXIDE EMISSIONS FROM CONTRIBUTING TO A VIOLATION OF THE NAAQS. BADGER OPERATES A BOILERHOUSE, FOUR DIGESTERS, A SULFURIC ACID PLANT AND AN EVAPORATION PLANT AT THE PULP MILL. EACH OF THESE FACILITIES EMITS SUBSTANTIAL AMOUNTS OF FULFUR DIOXIDE IF NOT PROPERLY CONTROLLED OR OPERATED. CAUSE OF ACTION BADGER'S EMISSIONS OF SULFUR DIOXIDE ARE IN VIOLATION OF THE WISCONSIN SIP AND BECAUSE BADGER IS A MAJOR SOURCE, U.S. EPA IS REQUIRED TO BRING A CIVIL ACTION TO ABATE THE VIOLATIONS AND RECOVER CIVIL PENALTIES UNDER SECTION 113 OF THE CLEAN AIR ACT, 42 U.S.C. 7413. PROPOSED REMEDY