GeoStrata

Geotechnical services include foundation soils assessment, field instrumentation and monitoring, pavement design, earthen dam and embankment work, retaining structures, slope stability assessments, seismic design, and liquefaction analysis.

• Foundation Soils Assessment

  Foundation recommendations address structure support, foundation type and size, bearing capacities, settlement, subgrade preparation, and soil mitigation.

• Pavement Design

  Pavement design covers new and rehabilitated pavements, subgrade testing, base materials, asphalt concrete, portland cement concrete, and agency design requirements.

• Slope, Seismic, and Liquefaction Analysis

  Slope stability, seismic design, ground motion hazard analysis, and liquefaction analysis support planned and existing slopes and structures.

Geologic engineering services support analysis, planning, and design for structures and public works with geologic components, hazards assessment, hazards monitoring, mitigation, city and county consulting, and expert witness work.

• Geologic Hazard Assessment

  Hazard assessment covers landslides, debris flow, flooding, avalanche, settlement, fault trenching, remote sensing evaluation, and geologic mapping.

• Hazard Monitoring and Mitigation

  Hazard monitoring and mitigation services include landslide monitoring, vibration monitoring, rock wall design, earthen embankments, and slope stabilization.

• City and County Consulting

  Public-agency consulting supports public water works, power lines, roads, bridges, and pavement concerns.

Environmental services cover permitting, compliance, geophysics, GIS and mapping, and environmental site assessments for commercial, private, and public entities.

• Air, Water, Solid, and Hazardous Waste Permitting

  Permitting support covers air quality, water quality, waste management, oil and gas, and mining requirements.

• Compliance and Wastewater Facility Planning

  Compliance work addresses E&P operations, wastewater treatment, underground injection control, landfills, mining operations, emissions estimates, financial assurance, and wastewater facility front-end design.

• Environmental Site Assessment

  Phase I, Phase II, and Phase III environmental site assessments evaluate potential or existing environmental contamination liabilities.

An onsite AASHTO-accredited laboratory and field teams support geotechnical testing, construction materials testing, special inspections, and field services.

• Geotechnical and Construction Materials Testing

  Testing covers direct shear, residual shear, unconfined compressive strength, triaxial shear, permeability, concrete strength, masonry, asphalt, soils, and aggregate tests.

• Special Inspections

  Special inspections cover bolting, commercial and industrial building inspections, mechanical inspections, plumbing inspections, reinforced concrete, structural masonry, structural steel, welding, and related field services.

• Field Quality Assurance and Quality Control

  Field services include asphalt coring, concrete sampling, density testing, soils sampling, concrete maturity monitoring, and visual observations.

GeoStrata applies geophysical investigations, seismic refraction, electrical resistivity, borehole logging, GIS mapping, cross sections, and field instrumentation to engineering, geologic, groundwater, mining, geotechnical, and oil and gas investigations.

• Geophysical Investigations

  Geophysical investigations use seismic refraction, electrical resistivity, and borehole logging equipment.

• GIS and Mapping

  GIS work produces maps and cross sections using remote imaging systems for engineering and geologic projects.

• Instrumentation and Monitoring

  Instrumentation and monitoring services include installation, calibration, monitoring, data reduction, and analysis for landslides, settlement, retaining structures, tunnels, vibration, and moisture intrusion.