NATURE OF THIS CASE UNITED STATES STEEL CORPORATION OPERATES A FULLY INTEGRATED STEEL MILL IN LAKE COUNTY, INDIANA ON LAKE MICHIGAN. AMONG THE MANY SOURCES OF PARTICULATE MATTER EMISSIONS AT THIS MIL L IS THE #2 OBOP WHICH CONVERTS MOLTEN IRON INTO STEEL. DUR ING THE PRODUCTION PROCESS EMISSIONS OF PARTICULATE MATTER O CCUR WHENEVER MATERIALS ARE TRANSFERRED WITHIN THE BUILDING AND MOST OFFENSIVELY DURING THE REFINING PROCESS. EMISSIONS RESULTING FROM CHARGING HOT METAL INTO THE PRIMARY REFINING VESSEL AND THE REFINING OPERATION ITSELF ARE THE SUBJECT OF THIS RECOMMENDATION. CAUSE OF ACTION UNITED STATES STELL CORPORATION'S #2 OBOP EMISSIONS ARE IN VIOLATION OF REQUIREMENTS IN A FEDERAL COURT ORDER ENTERED ON APRIL 26, 1983 PURSUANT TO THE STEEL INDUSTRY COMPLIANCE EXTENSION ACT OF 1981. THIS RECOMMENDED CONTEMPT ACTION IS NECESSARY TO INSURE THAT ADDITIONAL ORDERS ARE ENTERED WHICH REQUIRE UNITED STATES STEEL CORPORATION TO MEET APPROPRIATE EMISSION LIMITATIONS AND TO SECURE PENALTIES FOR UNITED STAT ES STEEL CORPORATION'S ABUSE OF THE EXTENSION ACT LEGISLATIO N. PROPOSED REMEDY IN ORDER TO ACHIEVE COMPLIANCE WITH EMISSION LIMITATIONS CON TAINED IN THIS EXTENSION ACT COURT ORDER, UNITED STATES STE EL CORPORATION WILL BE REQUIRED TO IN