Sevenson is one of a few remedial action contractors with roots in general construction

This general construction background enables Sevenson to look at a particular site remediation project from a practical, operations-oriented point of view. This often leads to ideas for cost savings through modest changes in the project plan which can yield significant results. As a hands-on contractor, Sevenson prefers the greater operational control of performing a project with its own forces as opposed to using subcontractors. Consistent with this policy, Sevenson owns and maintains its own fleet of traditional and specialty construction and marine equipment.

Sevenson is the leader in
remedial construction

Benchmark in the industry since the
Love Canal dominated headlines in 1978

Completed 1,500 projects
including 141 Superfund sites

Over $5.3 billion in revenue

Keenly aware of the regulatory issues
governing environmental projects

Proponent of the Partnering Approach
to executing work

Sevenson’s projects require a
range of services including:

Remedial Construction

• Excavation and earthwork, including landfill construction and closure
• Hazardous, toxic, and radiological waste materials handling, processing and treatment
• Innovative and traditional steel sheeting systems
• Sludge solidification and soils stabilization
• Chemical treatment/heavy metals fixation
• Slurry wall and trench construction
• Collection, recover, and treatment systems construction
• Facilities decontamination and demolition
• Temporary and mobile water treatment systems design, construction and O+M
• Constructability review during the design phase

Environmental Dredging

• Sediment remediation
• Hydraulic and mechanical dredging
• Dewatering and volume reduction (liquids/solids separation)
• Temporary and mobile water treatment systems design, construction and O+M
• Capping and armoring
• Habitat restoration
• Constructability review during the design phase