Tetra Tech performs a full range of services required to remediate hazardous waste sites, inactive waste sites, radioactive waste sites, and low-level radioactive waste sites. Our completed assignments have ranged from small and simple single objective projects to large, complex multitask and multisite projects. These have included initial site surveys, site investigations, risk assessments, feasibility studies, remedial design and engineering, remedial construction, site closure, and site restoration.

Tetra Tech offers major remediation program management expertise. Our approach melds the technical excellence of our scientists and engineers with proven project management capabilities and systems that consider and combine our clients' responsibilities and budgets. Tetra Tech is also a world leader in applying state-of-the-art in situ and ex situ remedial technology, including conventional and innovative technologies for both domestic and international applications.


  • Major remediation program management
  • Contaminated sediments dredging, treatment, and disposal
  • Low level radiation remediation
  • Munitions investigation and removal
  • Decontamination and decommissioning
  • Demolition of complex structures
  • Groundwater remediation
  • Landfill covers, caps, and liners
  • In situ soil treatment
  • Stabilization and fixation
  • Installation, operation, and maintenance of remedial systems

Related Projects

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Deck operations to assist UXO divers returning to the surface during chemical weapons recovery in Japan

Underwater Chemical Weapons Response and Recovery

Providing explosive ordnance disposal-qualified divers for offshore recovery of chemical weapons off the Port of Kanda, Japan

River's Edge Mixed-use Development

River’s Edge Mixed-use Development

Providing planning, permitting, and site engineering services for a brownfield redevelopment project in Medford, Massachusetts

Groundwater Remediation, Brazil

Groundwater Remediation at Former Chemical Waste Dump Site

Using a permeable reactive barrier to remediate groundwater in Campinas, Sao Paulo, Brazil

Underwater Survey of Unexploded Ordnance Off Culebra Island, Puerto Rico

Underwater Survey of Unexploded Ordnance Off Culebra Island, Puerto Rico

Using innovative approaches to investigate underwater unexploded ordnance at munition response sites

Anacostia River Sediments Remedial Investigation

Anacostia River Sediments Remedial Investigation

Performing a remedial investigation to evaluate sediment contamination in the tidal Anacostia River in Washington, DC