PARKVIEW METAL PRODUCTS, INC., OPERATES A SOLVENT CLEANING OPERATION AT ITS CHICAGO, ILLINOIS FACILITY. IT IS A MAJOR STATIONARY SOURCE OF VOLATILE ORGANIC COMPOUND (VOC) EMISSIONS. PURSUANT TO ILLINOIS RULES 205(K) & 205(J), OPERATIONS SUCH AS PARKVIEW'S WERE REQUIRED TO HAVE INSTITUTED CERTAIN OPERATING PRACTICES AND TO HAVE INSTALLED CERTAIN POLLUTION CONTROL EQUIPMENT ON JULY 1, 1980. THESE RULES BECAME PART OF THE FEDERALLY-APPROVED STATE IMPLEMENTATION PLAN (SIP) UPON EPA'S APPROVAL OF THE THEM ON 2/21/80. THE FACILITY IS NOT IN COMPLIANCE WITH THE VOC RE- QUIREMENTS OF THE SIP BECAUSE PARKVIEW HAS NOT INSTITUTED THE REQUIRED OPERATING PRACTICES, NOR HAS IT INSTALLED THE REQUIRED CONTROL EQUIPMENT, AT THE FACILITY'S FOUR DEGREASERS. SECTION 120 AUTHORIZES EPA TO RECOUP THE ECONOMIC BENE- FIT OF NONCOMPLIANCE REALIZED BY PARKVIEW BECAUSE OF THESE VIOLATIONS.