Opal Group Inc.

Stapleton Voluntary Closure

City and County of Denver Department of Aviation

Denver, CO

The City and County of Denver agreed to perform a Voluntary Corrective Action to close a former waste disposal area. The site is located on property near the former Stapleton International Airport in Denver, Colorado. The purpose of the corrective action was to contain a former unauthorized six-acre drum disposal landfill area. The closure was made particularly difficult due its close proximity to the Sand Creek stream channel and adjacent Sierra Club wetlands area. The key elements of the corrective action, implemented by Opal Group, L.L.C. personnel, included the following:


Type of Work: Multi-Media Cap, Slurry Wall, Stream Bank Modifications

Size: 6 acre cap, 67,000 cyds Excavation, 1,850 ft slurry wall

Services: Environmental Remediation

Related Projects: Excavation and Landfill Construction, Excavation and Landfill Design/ Oversight, Excavation and Landfill Design/Build, Excavation and Landfill Construction