| source | facility | location |
| 0142000010 P015 | OGLEBAY NORTON INDUSTRIAL SANDS MILLWOOD PLANT | HOWARD |
| 0142000010 P901 | OGLEBAY NORTON INDUSTRIAL SANDS MILLWOOD PLANT | HOWARD |
| 0448010023 F005 | NABISCO, INC., TOLEDO FLOUR MILL | TOLEDO |
| 0448010023 F006 | NABISCO, INC., TOLEDO FLOUR MILL | TOLEDO |
| 0448010495 F003 | THE ANDERSONS RIVER ELEVATOR | TOLEDO |
| 0448010495 F004 | THE ANDERSONS RIVER ELEVATOR | TOLEDO |
| 0664000087 P908 | OGLEBAY NORTON GLASS ROCK PLANT | GLENFORD |
| 0664000087 P909 | OGLEBAY NORTON GLASS ROCK PLANT | GLENFORD |