Wilder Projects

Foster Wheeler Camp Wesley Harris

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Project Location: Silverdale, Washington

Client: Foster Wheeler Environmental Corp.

Construction Cost: $1.4 million

Wilder’s Role: Subcontractor

Construction Period: 6/98 – 6/99

Project Highlights
Located in Silverdale, WA Design and Construction of chemical delivery system for treatment process train Rife, pistol & shotgun range lead contaminated soils Chemical Stabilization Operation and Maintenance of ex situ treatment equipment Technical Support for the implementation of in situ treatment practices Process Monitoring

Wilder Construction provided the equipment, personnel, and technical expertise to implement the use of the patented MAECTITE^® treatment system at Camp Wesley Harris. Screened firing range soils from the rifle, pistol, and shotgun ranges were treated to lower the leachable lead levels to below RCRA. Wilder’s scope of services for the project included treatment design, in situ and ex situ (pugmill) treatment of the soils, technical support for the development of a sampling protocol and treatment methodology, and treatment process monitoring using an onsite laboratory.

Wilder’s operational and technical expertise was noted in a commendation letter from the prime consultant. Wilder recommended that the project be conducted based on performance standards rather than engineering standards. Wilder also recommended using the MAECTITE^® chemical treatment system as an alternative to the proposed cement treatment process. The Navy accepted the proposed alternative treatment because it resulted in significant cost savings and allowed them to continue post-treatment use of the ranges.

Access to the primary work zone was not allowed during use of a nearby pistol range. By scheduling appropriately, treatment downtime was avoided and necessary work was completed at the secondary areas. Despite a delay in the start of the project and the addition of work to the original scope, Wilder completed the project on time.

Wilder’s onsite laboratory was initially used strictly for process control samples. When a dig-and-chase situation developed in the primary work zone, Wilder offered the mobile lab as a screening facility to quickly determine the extent of contamination as the excavation progressed. With lab results in less than 24 hours instead of up to 2 days, the excavation proceeded much more quickly.