| TPY | facn | facility | location |
| 1) | 699.0 | 0180010008 | THE SCOTTS CO. | MARYSVILLE |
| 2) | 598.0 | 0684020006 | ERAMET MARIETTA, INC. | MARIETTA |
| 3) | 537.1 | 0145020185 | OWENS CORNING | NEWARK |
| 4) | 245.6 | 0671010028 | CHILLICOTHE PAPER INC. | CHILLICOTHE |
| 5) | 174.8 | 0320010005 | JOHNS MANVILLE INTERNATIONAL, INC. | DEFIANCE |
| 6) | 166.6 | 0773000080 | SUNOCO INC (R&M) | HAVERHILL |
| 7) | 160.0 | 0320010004 | SHUT D - JOHNS MANVILLE INTERNATIONAL, INC. - PLANT 3 | DEFIANCE |
| 8) | 138.1 | 0607090013 | WHEELING-PITTSBURGH STEEL CORPORATION - MARTINS FERRY | MARTINS FERRY |
| 9) | 64.5 | 0320010003 | JOHNS MANVILLE INTERNATIONAL INC. - DEFIANCE PLANT 2 | DEFIANCE |
| 10) | 64.1 | 1409040212 | SMART PAPERS - HAMILTON MILL | HAMILTON |
| 11) | 41.3 | 0278060023 | NILES PLANT | NILES |
| 12) | 30.9 | 0448020007 | BP PRODUCTS NORTH AMERICA INC | OREGON |
| 13) | 30.9 | 0684000212 | DUKE ENERGY WASHINGTON COUNTY | BEVERLY |
| 14) | 30.5 | 0575000174 | HONDA OF AMERICA MFG., INC. ANNA ENGINE PLANT | ANNA |
| 15) | 28.3 | 0145000213 | GE QUARTZ, INC. NEWARK PLANT | HEBRON |
| 16) | 24.8 | 1431092049 | RUMPKE SANITARY LANDFILL, INC. | CINCINNATI |
| 17) | 23.8 | 0857190001 | APPLETON PAPERS INC. | WEST CARROLLTON |
| 18) | 19.9 | 1318000246 | CLEVELAND THERMAL LLC | CLEVELAND |
| 19) | 18.7 | 0317010010 | GE LIGHTING INC - BUCYRUS LAMP PLANT | BUCYRUS |
| 20) | 17.5 | 1409010006 | AK STEEL CORPORATION | MIDDLETOWN |
| 21) | 15.2 | 1318000156 | GE LIGHTING - IVANHOE ROAD | CLEVELAND |
| 22) | 11.9 | 0165010026 | GE CIRCLEVILLE LAMP PLANT | CIRCLEVILLE |
| 23) | 10.9 | 0243120034 | SHUT D - ARVESTA PERRY PLANT | PERRY |
| 24) | 10.5 | 0812100458 | TRUTEC INDUSTRIES, INC. | SPRINGFIELD |
| 25) | 10.2 | 1431390137 | PMC SPECIALTIES GROUP, INC. | ST. BERNARD |
| 26) | 9.49 | 0630000001 | TENNESSEE GAS PIPELINE STATION 209 | CUMBERLAND |
| 27) | 9.46 | 0708000033 | RUMPKE SANITARY LANDFILL - BROWN COUNTY | GEORGETOWN |
| 28) | 8.89 | 1318001613 | ISG CLEVELAND INC. | CLEVELAND |
| 29) | 8.84 | 0306020008 | G. A. WINTZER & COMPANY | WAPAKONETA |
| 30) | 8.66 | 0369000025 | PRO-TEC COATING CO. | LEIPSIC |
| 31) | 7.68 | 0641090010 | WHEELING-PITTSBURGH STEEL CORPORATION - STEUBENVILLE | STEUBENVILLE |
| 32) | 7.66 | 0640020059 | BEECH HOLLOW SANITARY LANDFILL | WELLSTON |
| 33) | 7.28 | 0448010246 | SUN COMPANY, INC. | OREGON |
| 34) | 7.01 | 1318120180 | FORD MOTOR COMPANY, CLEVELAND CASTING PLANT | BROOK PARK |
| 35) | 6.71 | 0204010193 | MILLENNIUM INORGANIC CHEMICALS, INC. - PLANT 2 | ASHTABULA |
| 36) | 6.33 | 0278080019 | THOMAS STEEL STRIP CORP. | WARREN |
| 37) | 6.28 | 1576000613 | THE TIMKEN COMPANY - STEEL PLANTS | CANTON |
| 38) | 5.90 | 0684010011 | KRATON POLYMERS U.S. LLC | BELPRE |
| 39) | 5.80 | 0125100987 | GRIFFIN WHEEL CO. - COLUMBUS PLANT | GROVEPORT |
| 40) | 4.81 | 1431150945 | GRAPHIC PACKAGING INTERNATIONAL INC | CINCINNNATI |
| 41) | 4.48 | 0278000648 | ISG WARREN INC. | CLEVELAND |
| 42) | 4.43 | 1431370758 | THE C.W. ZUMBIEL COMPANY - CLENEAY AVENUE | CINCINNATI |
| 43) | 4.38 | 0605000020 | TENNESSEE GAS PIPELINE STATION 204 | ALBANY |
| 44) | 4.01 | 0320010169 | ANR PIPELINE COMPANY | DEFIANCE |
| 45) | 3.92 | 0210000046 | TENNESSEE GAS PIPLINE- STATION 214 | CARROLLTON |
| 46) | 3.79 | 1409000896 | PSI ENERGY, MADISON GENERATING STATION | TRENTON |
| 47) | 3.77 | 0660010007 | OWENS BROCKWAY GLASS CONTAINERS - PLANT #12 | ZANESVILLE |
| 48) | 3.48 | 0448010247 | MEDICAL COLLEGE OF OHIO AT TOLEDO | TOLEDO |
| 49) | 3.45 | 0362000079 | GRAYMONT DOLIME (OH), INC. | GENOA |
| 50) | 3.42 | 1318121632 | WELLMAN FRICTION PRODUCTS BROOK PARK | BROOK PARK |
| 51) | 3.28 | 1409120656 | CINCINNATI GAS & ELECTRIC CO., WOODSDALE STATION | TRENTON |
| 52) | 3.28 | 0487010012 | PILKINGTON NORTH AMERICA INC | ROSSFORD |
| 53) | 3.14 | 0701000007 | DP&L, J.M. STUART GENERATING STATION | ABERDEEN |
| 54) | 3.11 | 0326000079 | SAUDER WOODWORKING COGENERATION FACILITY | ARCHBOLD |
| 55) | 2.74 | 0627010056 | GAVIN POWER PLANT | CHESHIRE |
| 56) | 2.73 | 1431370384 | THE C.W. ZUMBIEL COMPANY - HARRIS AVE | CINCINNATI |
| 57) | 2.70 | 0641050002 | CARDINAL POWER PLANT (CARDINAL OPERATING COMPANY) | BRILLIANT |
| 58) | 2.54 | 0125040554 | ANHEUSER-BUSCH COLUMBUS BREWERY | COLUMBUS |
| 59) | 2.38 | 1677010029 | NOVEON, INC. | AKRON |
| 60) | 2.33 | 0616000000 | CONESVILLE POWER PLANT | CONESVILLE |
| 61) | 2.31 | 0180000130 | HONDA OF AMERICA MANUFACTURING, INC. | MARYSVILLE |
| 62) | 2.11 | 0247080049 | EDGEWATER PLANT | LORAIN |
| 63) | 2.08 | 1576000073 | CANTON DROP FORGE | CANTON |
| 64) | 2.07 | 0684000000 | MUSKINGUM RIVER POWER PLANT | WATERFORD |
| 65) | 2.05 | 1431350093 | CINERGY CORP MIAMI FORT STATION | NORTH BEND |
| 66) | 1.99 | 1413100008 | CINERGY CG&E WC BECKJORD STATION | NEW RICHMOND |
| 67) | 1.84 | 1413090154 | CINCINNATI GAS & ELECTRIC CO., WM. H. ZIMMER | MOSCOW |
| 68) | 1.82 | 1576080056 | THE LONGABERGER COMPANY | HARTVILLE |
| 69) | 1.78 | 0641160017 | W. H. SAMMIS PLANT | STRATTON |
| 70) | 1.72 | 0320010001 | GMC POWERTRAIN DIV. | DEFIANCE |
| 71) | 1.68 | 0335010105 | CAMPBELL SOUP COMPANY | NAPOLEON |
| 72) | 1.60 | 0448010404 | GENERAL MOTORS CORP., TOLEDO, OH | TOLEDO |
| 73) | 1.60 | 0641120012 | WHEELING-PITTSBURGH STEEL CORPORATION - YORKVILLE PLANT | YORKVILLE |
| 74) | 1.45 | 1431070849 | UNIVERSITY OF CINCINNATI | CINCINNATI |
| 75) | 1.37 | 0744010002 | HONEYWELL INTERNATIONAL INC | IRONTON |