| Site | Location | Date | Consultant/Licensed Installer | Area (ft2) | Depth (ft) | Description |
| Pratt Whitney Site | New Haven, NJ | Jul. 1998 | University of Connecticut / University of Waterloo | 780 | 32 | closed cell for pilot scale remediation testing. |
| Industrial Site | North Vancouver, BC | Aug. 1998 | SRK Robinson / C3 Environmental | 42,000 | 43 | groundwater barrier and structural wall for excavation of contaminated soils, heavy WEZ 95 sheet pile. |
| Atomic Energy of Canada Site | Chalk River, ON | Nov. 1998 | AECL / CH2M Hill / C3 Environmental | 4,900 | 27 | in situ treatment system for SR90 plume. |
| Petroleum Refinery Site | Arkansas City, KS | Nov. 1998 | Enecotech / Slurry Systems | 5,120 | 32 | containment of hydrocarbon- contaminated soils adjacent to creek. |
| General Electric Site | Pittsfield, MA | Dec. 1998 | Maxymillian / C3 Environmental | 2,760 | 30 | cut-off wall to prevent groundwater contamination from entering river. |
| Canadian Crown Corporation Site | St. John, NB | Dec. 1998 | Jacques Whitford / C3 Environmental | 4,000 | 7 | cut-off wall to limit migration of liquid creosote into adjacent. |