| Company Name: |
Location: |
| AKZO Engineering, BV | Scottsboro, AL |
| Allied Chemical Corp | Claymont, DE |
| ANG Coal Gasification Co | Beulah, MD |
| ARCO Petroleum Products Co | Ferndale, WA |
| ARCO Refinery | Carson, CA |
| Aristech Chemical Corporation | Neville Island, PA |
| | Pittsburgh, PA |
| Ben Venue Laboratories | Bedford, OH |
| Bettis Atomic Laboratory | West Mifflin, PA |
| Calgon Carbon Corp | Port Bienville, MS |
| Calgon Corp | Ellwood City, PA |
| Chemetics International Co | Mt. Vernon, IN |
| CIBA Specialty Chemical Corporation | Newport, DE |
| Clariant Corporation | Branchburg, NJ |
| Climax Molybdenum | Langeloth, PA |
| Colgate-Palmolive | Cambridge, OH |
| Dupont Red Lion | Delaware City, DE |
| E.I. Dupont De Nemours & Co.,Inc | Aiken, SC |
| | Edgemoor, DE |
| | Waynesboro, VA |
| Eastman Chemical Co. | Columbia, SC |
| Essex Chemical Corp | Newark, NJ |
| FR. Squibb & Sons, Inc | New Brunswick, NJ |
| Georgia Pacific Corp | Painesville, OH |
| Hoechst-Celanese | Summit, NJ |
| HoffmawLaroche, Inc | Belvidere, NJ |
| ICI Americas, Inc | Fayetteville, NC |
| Langeloth Metaliurgical Company | Langeloth, PA |
| Lever Brothers Company | Baltimore, MD |
| Mallinckrodt, Inc | Hobart, NY |
| Mallincroft Chemical Company | Phillipsburg, NJ |
| Merck & Co., Inc | Danville, PA |
| | Elkton, VA |
| | Rahway, NJ |
| | West Point, PA |
| Mobay Chemical Corp | New Martinsville, WV |
| Neville Chemical Co | Neville Island, PA |
| Newport Chemical | Newport, IN |
| Nova Chemical | Monaca, PA |
| Olin Chemical | McIntosh, AL |
| P.P.G. Industries | Natrium, WV |
| | New Martinsville, WV |
| PCS Nitrogen Company | Geismar, LA |
| Pennwalt Corp | Thorofare, NJ |
| Purex Industries | Garden City, NY |
| Qiagen, Inc | Germantown, MD |
| Roche Molecular Systems | Branchburg, NJ |
| Shell Chemical | Belpre, OH |
| SmithKline Beecharn | Upper Merion, PA |
| Takasago International Corporation | University Park, IL |
| Temple-Island Forest Products | Shippenville, PA |
| Texaco | Eldorado, KS |
| Union Oif1Molycorp | Washington, PA |
| W.R. Grace | Baltimore, OH |
| Watson-Rhenania | Harwick, PA |
