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Geotechnical Engineering 

With as many as 600 geotechnical engineers, soils technicians, and drillers, Tetra Tech is among some of the largest players in the geotechnical engineering business in the United States. We use state-of-practice techniques and test procedures to investigate, analyze, and develop geotechnical engineering recommendations and designs for simple to complex problems relating to groundwater, soil, or rock.

Our services include:

• Geotechnical engineering
• Geohydrology
• Waste facilities
• Subsurface investigations
• Construction quality assurance
• Field permeability testing/instrumentation
• Subsurface exploration
• Foundation investigations and design
• Geologic hazard identification
• Avalanche evaluations
• Seismic hazard evaluations
• Instrumentation, design, and installation
• Earth and rock fill dams
• Earthquake engineering
• Sedimentation control studies
• Engineering risk assessment
• Slope stability analysis
• Slope remediation and reclamation
• Construction material evaluations
• Dewatering and seepage analyses
• Full-service geotechnical laboratory
• Field audits