| Polluter | Pollutants | Sources | Emissions |
|---|---|---|---|
| Calmat Co | 6 | 6 | 13,600.00 |
| Chaffey Joint Union High Schoo | 4 | 12 | 1,492.56 |
| D F Manufacture | 1 | 1 | 4,801.19 |
| Luster Cote Inc | 5 | 14 | 8,141.68 |
| Maaco Auto Painting & Bodywork | 1 | 3 | 3,195.96 |
| Mathisen Oil Co | 1 | 17 | 1,640.00 |
| Metro Motors | 1 | 2 | 294.43 |
| Montclair Wood Corporation | 6 | 13 | 7,375.08 |
| Tri-Alloy Inc | 7 | 14 | 22,500.20 |
| U.S. Rentals | 6 | 33 | 14,204.33 |