| AHLSTROM RECOVERY INC. | OGDEN MARTIN SYSTEMS |
| BOISE CASCADE CORP. | OWENS CORNING |
| CHEVRON USA | PHILLIPS KILN SERVICE |
| COCHRANE ENVIRONMENTAL | ROBERTS FILTER CO. |
| CUSTODIS | SIMPSON PAPER |
| DEPENDABLE FOUNDRY | SMURFIT NEWSPRINT |
| GEORGIA PACIFIC | STATE OF OREGON |
| GREAT LAKES WATER CO. | TELEDYNE WAH CHANG |
| HOFFMAN MECHANICAL | TIME OIL |
| HUNGERFORD & TERRY | U.S. ARMY CORPS OF ENGINEERS |
| INTERNATIONAL PAPER | US NAVY |
| JAMES RIVER | VANALCO INC. |
| LONGVIEW FIBER | VININGS |
| MORSE SAND & GRAVEL | WILDISH SAND & GRAVEL |
| NESTE RESINS | WILLAMETTE INDUSTRIES |