EMISSION OF VOLATILE ORGANIC COMPOUNDS IN EXCESS OF OHIO SIP RULES 3745-21-04(C)(28) AND 3745-21-09(U). I. SYNOPSOIS OF THE CASE INTERIOR STEEL EQUIPMENT COMPANY, INC. ( INTERIOR STEEL OR THE COMPANY ) MANUFACTURES CUSTOM AND GENERAL SIZE STEEL LOCKERS, CABINETS AND MUSEUM CASES FOR SALE TO INDUSTRY, GO- VERNMENT, COMMERCIAL AND INSTITUTIONAL CUSTOMERS. (ATTACH- MENT 15.) INTERIOR STEEL IS A POTENTIAL MAJOR SOURCE OF VO- LATILE ORGANIC COMPOUNDS (VOCS). THE COMPANY'S MANUFACTURING PLANT IS LOCATED IN CUYHOGA COUNTY, OHIO, A DESIGNATED PRIMARY NONATTAINMENT AREA FOR OZ ONE. THE CLEVELAND AREA IS AN OZONE EXTENSION AREA UNDER SECTION 172(A2) OF THE CLEAN AIR ACT ( THE ACT ), 42 USC S75 02(A2), WITH A FINAL ATTAINMENT DATE OF DECEMBER 31, 1987. INTERIOR STEEL'S MANUFACTURING PROCESS INCLUDES ELECTROSTA TIC SPRAYING AND DIP COATING OPERATIONS THAT ENTAIL THE USE OF SOLVENT-BASED COATINGS AND ORGANIC DILUENTS ADDED AT THE POINT OF APPLICATION. VOCS ARE DISCHARGED TO THE ATMOSPHERE AS A RESULT OF EVAPORATIVE LOSSES FROM THE PAINTING BOOTHS AND THE DIP TANK, AS WELL AS THE DRYING OVENS. ON JULY 3, 1986, THE USEPA ISSUED A NOTICE OF VIOLATION (NOV) TO INTERIOR STEEL EQUIPMENT COMPANY. (ATTACHMENT 1.) THE NOV INFORMED THE COMPANY THAT THE COATINGS IT WAS USING AT ITS CLEVELAND FACILITY CONTAINED VOC CONCENTRATIONS IN EX CESS OF THE THREE POUNDS PER GALLON