| TPY | facn | facility | location |
| 1) | 55033.2 | 0278000463 | WCI STEEL, INC. | HOWLAND/WEATHERSFIELD/WARREN |
| 2) | 37330.2 | 0204010193 | MILLENNIUM INORGANIC CHEMICALS, INC. - PLANT 2 | ASHTABULA |
| 3) | 33897.8 | 0641090010 | WHEELING-PITTSBURGH STEEL CORPORATION - STEUBENVILLE | STEUBENVILLE |
| 4) | 22963.3 | 1409010006 | AK STEEL CORPORATION | MIDDLETOWN |
| 5) | 21960.3 | 1318001613 | ISG CLEVELAND INC. | CLEVELAND |
| 6) | 18944.9 | 0656000001 | ORMET PRIMARY ALUMINUM CORP. | HANNIBAL |
| 7) | 8939.2 | 0204010200 | MILLENNIUM INORGANIC CHEMICALS, INC. PLANT #I | ASHTABULA |
| 8) | 6845.1 | 0247080229 | REPUBLIC ENGINEERED PRODUCTS, INC | LORAIN |
| 9) | 5269.0 | 0326000073 | NORTH STAR BHP STEEL L. L. C. | DELTA |
| 10) | 2679.6 | 0671010028 | CHILLICOTHE PAPER INC. | CHILLICOTHE |
| 11) | 1893.5 | 1576000613 | THE TIMKEN COMPANY - STEEL PLANTS | CANTON |
| 12) | 1818.8 | 1318120180 | FORD MOTOR COMPANY, CLEVELAND CASTING PLANT | BROOK PARK |
| 13) | 1717.4 | 0684010049 | DEGUSSA ENGINEERED CARBONS LP | BELPRE |
| 14) | 1654.4 | 0701000007 | DP&L, J.M. STUART GENERATING STATION | ABERDEEN |
| 15) | 1642.8 | 0627010056 | GAVIN POWER PLANT | CHESHIRE |
| 16) | 1572.9 | 0641160017 | W. H. SAMMIS PLANT | STRATTON |
| 17) | 1165.7 | 0448020007 | BP PRODUCTS NORTH AMERICA INC | OREGON |
| 18) | 1099.4 | 0616000000 | CONESVILLE POWER PLANT | CONESVILLE |
| 19) | 1053.6 | 0448010246 | SUN COMPANY, INC. | OREGON |
| 20) | 1026.8 | 0448000013 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE |
| 21) | 958.4 | 1413090154 | CINCINNATI GAS & ELECTRIC CO., WM. H. ZIMMER | MOSCOW |
| 22) | 883.8 | 0641050002 | CARDINAL POWER PLANT (CARDINAL OPERATING COMPANY) | BRILLIANT |
| 23) | 835.3 | 1431350093 | CINERGY CORP MIAMI FORT STATION | NORTH BEND |
| 24) | 832.6 | 0243110099 | PFF/MFD/STD OF AVERY DENNISON | PAINESVILLE |
| 25) | 823.5 | 0684000000 | MUSKINGUM RIVER POWER PLANT | WATERFORD |
| 26) | 788.3 | 0243160009 | CLEVELAND ELECTRIC ILLUMINATING CO., EASTLAKE PLANT | EASTLAKE |
| 27) | 764.7 | 1413100008 | CINERGY CG&E WC BECKJORD STATION | NEW RICHMOND |
| 28) | 723.5 | 0302020015 | INNOVENE USA LLC | LIMA |
| 29) | 692.0 | 0627000003 | OHIO VALLEY ELECTRIC CORP., KYGER CREEK STATION | CHESHIRE |
| 30) | 670.2 | 0302020012 | PREMCOR REFINING GROUP | LIMA |
| 31) | 615.4 | 0351010017 | NUCOR STEEL MARION, INC. | MARION |
| 32) | 557.6 | 0320010001 | GMC POWERTRAIN DIV. | DEFIANCE |
| 33) | 497.8 | 0388010133 | A. O. SMITH ELECTRICAL PRODUCTS CO. | UPPER SANDUSKY |
| 34) | 487.6 | 0243150025 | THE LUBRIZOL CORPORATION - WICKLIFFE FACILITY | WICKLIFFE |
| 35) | 484.1 | 0372000127 | MARTIN MARIETTA MAGNESIA SPECIALTIES INC. | WOODVILLE |
| 36) | 481.5 | 1431070944 | MILL CREEK WWTP | CINCINNATI |
| 37) | 457.3 | 0448020006 | TOLEDO EDISON CO., BAY SHORE PLANT | OREGON |
| 38) | 441.5 | 0247030013 | AVON LAKE POWER PLANT | AVON LAKE |
| 39) | 407.5 | 0487010012 | PILKINGTON NORTH AMERICA INC | ROSSFORD |
| 40) | 378.4 | 0370010023 | AK STEEL CORPORATION | MANSFIELD |
| 41) | 377.2 | 0701000060 | DP&L, KILLEN GENERATING STATION | MANCHESTER |
| 42) | 363.0 | 0684020006 | ERAMET MARIETTA, INC. | MARIETTA |
| 43) | 336.0 | 0250110625 | V & M STAR | YOUNGSTOWN |
| 44) | 336.0 | 0125100987 | GRIFFIN WHEEL CO. - COLUMBUS PLANT | GROVEPORT |
| 45) | 327.0 | 1576050694 | REPUBLIC ENGINEERED PRODUCTS, INC. | CANTON |
| 46) | 310.7 | 0829700165 | CEMEX, INC. | XENIA |
| 47) | 303.9 | 0855130087 | A.O. SMITH ELECTRICAL PRODUCTS CO. | TIPP CITY |
| 48) | 303.8 | 0125040421 | JACKSON PIKE WASTEWATER TREATMENT PLANT | COLUMBUS |
| 49) | 301.4 | 0145020185 | OWENS CORNING | NEWARK |
| 50) | 300.5 | 1576000301 | MARATHON PETROLEUM COMPANY LLC, CANTON REFINERY | CANTON |
| 51) | 293.7 | 0448010920 | FEDERAL-MOGUL CORP., IGNITION PRODUCTS TECHNICAL CENTER | TOLEDO |
| 52) | 253.7 | 0125040020 | COLUMBUS STEEL CASTINGS | COLUMBUS |
| 53) | 250.3 | 0285020076 | CARAUSTAR INDUSTRIES, INC. | RITTMAN |
| 54) | 240.1 | 1652050040 | OWENS CORNING, MEDINA PLANT | MEDINA |
| 55) | 228.5 | 0320010005 | JOHNS MANVILLE INTERNATIONAL, INC. | DEFIANCE |
| 56) | 227.1 | 0607130015 | R. E. BURGER PLANT | SHADYSIDE |
| 57) | 224.9 | 0320010003 | JOHNS MANVILLE INTERNATIONAL INC. - DEFIANCE PLANT 2 | DEFIANCE |
| 58) | 222.1 | 0374010117 | HONEYWELL INTERNATIONAL, INC. | FOSTORIA |
| 59) | 211.4 | 0857190001 | APPLETON PAPERS INC. | WEST CARROLLTON |
| 60) | 211.2 | 0250050996 | CARBON LIMESTONE LANDFILL GAS POWER STATION | LOWELLVILLE |
| 61) | 211.0 | 0285020059 | MORTON SALT DIVISION OF MORTON INTERNATIONAL, INC. | RITTMAN |
| 62) | 204.7 | 1483000144 | DOMINION RESOURCES SERVICES INC | LEBANON |
| 63) | 198.6 | 0204010000 | CLEVELAND ELECTRIC ILLUMINATING CO., ASHTABULA PLANT | ASHTABULA |
| 64) | 197.4 | 0125102034 | DOMINION - GROVEPORT COMPRESSOR STATION | GROVEPORT |
| 65) | 194.8 | 0247100968 | LORAIN COUNTY LFG POWER STATION | OBERLIN |
| 66) | 189.5 | 0660010101 | BURNHAM FOUNDRY | ZANESVILLE |
| 67) | 182.9 | 0773000080 | SUNOCO INC (R&M) | HAVERHILL |
| 68) | 182.2 | 1576000806 | WATER POLLUTION CONTROL CENTER | CANTON |
| 69) | 174.2 | 0123000137 | CRAWFORD COMPRESSOR STATION | CHARLESTON |
| 70) | 173.1 | 0448010737 | CITY OF TOLEDO, DIVISION OF WATER RECLAMATION | TOLEDO |
| 71) | 168.9 | 0684010011 | KRATON POLYMERS U.S. LLC | BELPRE |
| 72) | 166.9 | 0679000075 | DOMINION TRANSMISSION INC | PORT WASHINGTON |
| 73) | 166.1 | 1677010757 | AKRON THERMAL ENERGY CORPORATION | AKRON |
| 74) | 164.1 | 0326000079 | SAUDER WOODWORKING COGENERATION FACILITY | ARCHBOLD |
| 75) | 159.3 | 0684000105 | GLOBE METALLURGICAL INC. | WATERFORD |