CONTAMINATED SOIL REMEDIATION
Great Lakes E&I has extensive experience performing the safe excavation and transport of contaminated soils and other source materials. Our project management teams prepare job-specific safety protocols and traffic control plans that prevent exposure to workers, as well as the surrounding community and environment. When required, air monitoring is utilized to further ensure that fugitive dust and emissions do not leave the project boundaries. All vehicles utilized for transport of impacted media are securely tarped, thoroughly inspected, and properly decontaminated prior to leaving the project site to prevent the accidental spread of contamination. Traffic routes are carefully planned to maximize safety and limit potential community exposure. Great Lakes E&I’s experience with contaminated source removal has included soil and other media contaminated with heavy metals, volatile organic compounds, solvents, pesticides, PCBs, dioxins, and asbestos.
MARE ISLAND CRANE TEST AREA REMEDIATION
- Excavation of 15,000 cy of TPH and metal impacted soils
- On-site screening of soils
- Off-site disposal of 8,000 tons of RCRA hazardous soil
- Construction of low permeability clay cap
- Installation of new electrical utility duct bank
- Site restoration with hydroseeding and asphalt paving
Great Lakes E&I completed remedial construction activities at the Crane Test Area on the former Mare Island Naval Base in the summer of 2010. The project involved remediation of a 4 acre site known as the crane test area on at the former Mare Island Naval Station in Vallejo, CA. The scope of work included clearing and grubbing, removal of site debris, construction of a lined stockpile/screening area, excavation, screening and off-site disposal of waste soil, removal and replacement of existing site utilities, backfilling with on-site and imported soil fill, placement of a clay cap, and site restoration.
THE DALLES SMELTER PAH SOIL EXCAVATION
THE DALLES, OR
- Excavation and disposal of 55,000 tons of PAH contaminated soil at a former aluminum smelter
- Demolition and removal of 4,000 lf of railroad track
- Recovery and salvage of recyclable metals
- Placement and grading of 40,000 tons of clean fill
- Diversion, excavation, and restoration of contaminated drainage ditch
This project involved the removal of PAH and heavy metals contaminated soil from a former aluminum smelter in order to achieve an Oregon Department of Environmental Quality (DEQ) No Further Action (NFA) decision for the site. Great Lakes E&I excavated and loaded 55,000 tons of polycyclic aromatic hydrocarbon (PAH) contaminated soil for disposal at a local landfill. Excavation areas and depths varied across the site. After removal, Great Lakes E&I back filled disturbed areas with 40,000 tons of clean fill and graded the site to ensure positive drainage.