BRIEF SYNOPSIS OF THIS CASE INTERLAKE, INC. OWNS AND OPERATES FACILITIES AT SEVERAL LOCA TIONS IN THE CHICAGO AREA WHICH, WHEN COMBINED, CONSTITUTE A FULL INTEGRATED IRON AND STEEL MANUFACTURING FACILITY. VIS IBLE EMISSIONS FROM THE ROOF MONITOR OF THE BLAST FURNACE CASTHOUSE AT INTERLAKE, INC. AT THE CHICAGO FACILITY CAUSE O PACITY IN EXCESS OF THAT ALLOWED BY THE FEDERALLY ENFORCEABL E ILLINOIS IMPLEMENTATION PLAN. THESE LONGSTANDING VIOLATIO N WERE THE SUBJECT OF THE THE JANUARY 7, 1985 NOTICE OF VIOL ATION ISSUED BY DAVID KEE, DIRECTOR, AIR MANAGEMENT DIVISION , REGION V, U.S. EPA, PURSUANT TO SECT 113(A)(1) OF THE CLEA N AIR ACT. SUBSEQUENT TO THE ISSUANCE OF THAT NOTICE, INTER LAKE INC. ATTEMPTED TO DEMONSTRATE THAT ITS BLAST FURNACE CA STHOUSE COULD BE OPERATED IN COMPLIANCE WITH APPLICABLE SIP REQUIREMENT. THE DEMONSTRATION FAILED AND THE VIOLATIONS HA VE CONTINUED FOR MORE THAN 30 DAYS AFTER ISSUANCE OF THE NOT ICE. REGION V HAS CONCLUDED THAT CIVIL ACTION NECESSARY TO SECURE COURT ORDERED COMPLIANCE BY INTERLAKE INC. AT THIS FACILITY. THE ACTION WILL SEEK THE PAYMENT OF CIVIL PENALTIES AND WILL ALSO SEEK AN INJUNCTIVE ORDER REQUIRING INTERLAKE INC. TO CO MPLY EXPEDITIOUSLY. THE CONTROL METHODOLOGY RECOMMENDED BY U.S. EPA IN THIS ACTION SIMILAR TO TECHNIQUES EMPLOYED BY VI RTUALLY EVERYONE IN THE STEEL INDUSTRY. REGION V HAS ATTEMP TED TO NEGOTIATE AN ACCEPTABLE SETTLEM