| source | facility | location |
| 0250110625 F001 | V & M STAR | YOUNGSTOWN |
| 0250110886 F001 | YOUNGSTOWN SINTER COMPANY | YOUNGSTOWN |
| 0278000463 F001 | WCI STEEL, INC. | HOWLAND/WEATHERSFIELD/WARREN |
| 0322020044 F004 | G. & C. FOUNDRY CO. | SANDUSKY |
| 0363000002 F003 | LAFARGE/SYSTECH ENVIRONMENTAL CORP. | PAULDING |
| 0386010059 F001 | WILLIAMS COUNTY LANDFILL | BRYAN |
| 0546010137 F001 | CHEROKEE RUN LANDFILL | BELLEFONTAINE |
| 0627000003 F002 | OHIO VALLEY ELECTRIC CORP., KYGER CREEK STATION | CHESHIRE |
| 0640020059 F001 | BEECH HOLLOW SANITARY LANDFILL | WELLSTON |
| 0641090127 Z010 | TUBE CITY OLYMPIC OF OHIO, INC. | MINGO JUNCTION |
| 0660010101 F023 | BURNHAM FOUNDRY | ZANESVILLE |
| 0701000007 F001 | DP&L, J.M. STUART GENERATING STATION | ABERDEEN |
| 0708000033 F002 | RUMPKE SANITARY LANDFILL - BROWN COUNTY | GEORGETOWN |
| 0857780013 F001 | DP&L, O.H. HUTCHINGS GENERATING STATION | MIAMISBURG |
| 1318120180 F001 | FORD MOTOR COMPANY, CLEVELAND CASTING PLANT | BROOK PARK |
| 1409010006 F001 | AK STEEL CORPORATION | MIDDLETOWN |
| 1409010908 F010 | TUBE CITY, INC. DBA OLYMPIC MILL SERVICES | MIDDLETOWN |
| 1431092049 F001 | RUMPKE SANITARY LANDFILL, INC. | CINCINNATI |
| 1431092049 F003 | RUMPKE SANITARY LANDFILL, INC. | CINCINNATI |
| 1431473443 F001 | BOND ROAD LANDFILL | WHITEWATER TOWNSHIP |
| 1576050200 F002 | SHUT D - OHIO CAST PRODUCTS | CANTON |