Brunsing Associates, Inc.

Geotechnical and Environmental Engineering

Website

About the firm

Brunsing Associates, Inc. is a geotechnical and environmental engineering practice based in Santa Rosa, California. It provides soil investigations, engineering geology, environmental site assessments, hydrogeologic analyses, and fire disaster response services across Northern California.

Established
1990
Firm type
Geotechnical Engineering · Environmental Engineering · Materials Testing

Credentials

Caltrans Geotechnical Testing Laboratory Certification · Nuclear Gauge Operator Training · ACI Field Testing Technician Grade 1

People

Thomas P. Brunsing, Ph.D., P.E.President & Principal Engineer

Erik Olsborg, P.G., C.E.G.Vice President & Principal Engineering Geologist

Keith Colorado, P.E., G.E.Vice President & Principal Geotechnical Engineer

Josh KilgoreSenior Engineering Geologist

David StaffordStaff Geologist

Oren JudyLaboratory Manager & Field Technician

Michael L. SheltonField Technician

Carolyn SchertzerExecutive Assistant, Controller, & Office Manager

Marilyn ColoradoReceptionist & Accounting Assistant

Capabilities

Geotechnical Engineering

Service website

Comprehensive engineering geology, soil analysis, and foundation design to address geological, construction, and environmental challenges.

  • Soils Reports

    Site-specific soil investigations, analysis, and geotechnical reporting for permitting and construction preparation.

  • Landslides and Slope Stability

    Geotechnical analysis, monitoring, and design of mitigation measures for unstable slopes and landslide areas.

  • Erosion Control

    Design and planning of soil preservation and stormwater runoff mitigation strategies.

  • DSA Compliance for Schools

    Geotechnical investigations and testing certified to satisfy Division of the State Architect requirements.

  • Engineering Geology

    Geologic mapping, fault evaluation, hazard assessments, and terrain mapping.

  • Subsurface Investigations & Sampling

    Drilling, soil logging, and representative sampling to evaluate subsurface soil profiles.

  • Foundation Engineering

    Engineering design recommendations for shallow and deep foundation systems based on subsurface conditions.

  • Seismic, Liquefaction and Settlement Analysis

    Evaluation of earthquake hazards, liquefaction potential, and anticipated soil consolidation settlement.

  • Ocean Bluff Geology and Bluff Retreat Rates

    Coastal geology assessments, bluff erosion studies, and stability analyses for coastal properties.

  • Sea Level Rise Studies

    Impact analyses and projections for coastal assets subject to rising sea levels.

  • Materials Testing

    Laboratory and field evaluation of concrete, reinforcing steel, compaction, and nuclear density testing.

  • Legal Support and Consulting

    Expert witness services, forensic geotechnical investigations, and technical dispute consulting.

Environmental Engineering

Due diligence, environmental assessments, remediation design, and hazardous material management.

  • Phase I and Phase II Environmental Site Assessments

    Historical records reviews and intrusive sampling to identify potential environmental liabilities and contaminants.

  • Remediation Design

    Engineering of treatment systems and excavation plans for contaminated soil and groundwater cleanups.

  • Groundwater and Surface Water Monitoring

    Regular sampling and testing of water quality in monitoring wells and natural water bodies.

  • Vapor Intrusion Assessment

    Evaluating soil gas and volatile organic compounds to prevent indoor air contamination.

  • Risk Assessment

    Determining human health and environmental risks associated with site contamination.

  • Contaminated Site Redevelopment

    Reclaiming, mitigating, and developing brownfield or historically contaminated properties.

Hydrogeologic Reports

Hydrogeologic reporting evaluates groundwater conditions for water supply and planning.

  • Groundwater Recharge Assessment

    Assessment of recharge conditions and groundwater availability.

  • Well Siting Evaluation

    Evaluation support for domestic agricultural and industrial wells.

  • Groundwater Management Compliance

    Reporting support for sustainable groundwater management requirements.

Fire Disaster Response and Cleanup

Post-fire response services evaluate geotechnical hazards and cleanup needs.

  • Geotechnical Hazard Assessment

    Assessment of post-fire slope and foundation risks.

  • Foundation Testing

    Testing support for fire-damaged foundations.

  • Hazardous Materials Cleanup Management

    Management support for regulated cleanup work.

Industries

Education · Rail · Bridges · Environmental & Remediation · Government · Highways & Roads · Hospitality · Transit

Projects

Landslide Repair - Fairfax

Fairfax, CA · Infrastructure

Project details

Geotechnical, soils, and landslide evaluation for emergency and planned repair work.

Landslide - Bowling Ball Beach

Bowling Ball Beach, CA · Infrastructure

Project details

Geotechnical assessment, bluff geology, and landslide investigation along the coastline.

Sacred Rock Resort - Elk

Elk, CA · Hospitality

Project details

Geotechnical services, materials testing, and soil evaluation for resort development.

Wilfred Avenue Widening, Rohnert Park

Rohnert Park, CA · Highways & Roads

Project details

Geotechnical, materials testing, seismic, and liquefaction analysis for roadway widening project.