| Polluter | Pollutants | Sources | Emissions |
|---|---|---|---|
| Ak Steel Corporation | 43 | 115 | 3,903,315.71 |
| Bunting Bearings Corp. | 2 | 2 | 4.00 |
| Crane Plumbing | 1 | 2 | 45,700.00 |
| Designed Metal Prods. Inc. | 1 | 1 | 0.65 |
| Gorman Rupp Co. | 1 | 1 | 3,838.00 |
| Harsco Co. Heckett Multiserv Plant 36 | 1 | 1 | 77.00 |
| Jay Plastics, Inc. | 3 | 79 | 242,000.00 |
| Medcentral Health System, Mansfield Hospital | 11 | 11 | 2,383.79 |
| Newman Tech. Inc. | 4 | 6 | 3,044.00 |
| Pan Glo Mansfield | 2 | 4 | 443.09 |
| Richland Moulded Brick Co | 15 | 15 | 25,681.01 |
| Therm-O-Disc Inc. | 1 | 2 | 2,805.00 |