| Waste To Energy | 37 | 68 | 832,170.17 |
| Northside Landfill | 35 | 35 | 15,053.03 |
| South Landfill | 28 | 28 | 26,303.91 |
| Whitman College Site | 28 | 28 | 28,518.43 |
| Marshall Landfill | 28 | 28 | 6,549.97 |
| Maak Tire Recycling Service | 28 | 28 | 31,413.10 |
| Busy Bee Landfill | 28 | 28 | 9,264.46 |
| Colbert Landfill | 28 | 28 | 31,413.10 |
| Mica Landfill | 28 | 28 | 1,369.26 |
| Kaiser Trentwood | 27 | 225 | 791,582.21 |
| Inland Empire Paper | 20 | 114 | 506,924.40 |
| Mutual Materials | 18 | 40 | 440,780.73 |
| Huntwood Industries | 17 | 44 | 617,540.00 |
| Pg & E Gas Transmission Northwest | 12 | 29 | 401,844.00 |
| Conoco Parkwater Product Terminal | 11 | 20 | 5,298.57 |
| Reliance Trailer Co Llc | 9 | 19 | 13,904.00 |
| Fairchild Afb | 8 | 97 | 116,484.60 |
| Kaiser Aluminum Mead Works | 7 | 56 | 0.00 |
| Fiber-Tech Industries | 6 | 11 | 86,101.82 |
| Columbia Paint & Coatings Co. | 3 | 3 | 9,077.00 |
| Spokane Industries Inc. | 3 | 8 | 285.00 |
| Honeywell Electronic Materials Inc. | 3 | 5 | 11,011.00 |
| Goodrich Corp. | 2 | 2 | 255.00 |
| United Coatings Mfg. Co. | 2 | 4 | 2,375.00 |
| Melcher Mfg Co Inc | 2 | 4 | 18,349.00 |
| Univar Usa Inc. (Formerly Vopak Usa Inc.) | 1 | 2 | 283.00 |
| Safety-Kleen Sys. (118301) | 1 | 2 | 22.00 |
| Koch Materials Co. Spokane Hillyard Facility | 1 | 1 | 0.10 |
| Inland Fndy. Co. Inc. | 1 | 2 | 97.00 |
| Apollo Plastics Inc. | 1 | 1 | 97.00 |
| Travis Pattern & Fndy. Inc. | 1 | 2 | 7,200.00 |
| Quarry Tile Co. | 1 | 1 | 1.50 |
| Adm Animal Health & Nutrition | 1 | 1 | 2.00 |
| Agilent Techs. | 1 | 1 | 1.40 |
