Geosyntec San Francisco, California Office

Each of our offices can assist clients with our complete range of proven and innovative engineering and scientific services from our global network of leading consultants. See a list of our practice areas »

Address: 595 Market Street, Suite 610, San Francisco, CA, 94105, USA

Telephone: 415-678-1988

Principal Consultants

  • Randy Brandt, P.G.

    Randy Brandt is a Senior Principal Geologist based in California with more than 30 years of management and technical experience with environmental and hazardous waste issues. He has focused on development and implementation of environmental restoration programs for blighted hazardous waste sites ranging in size from gasoline service stations to closed military bases. Randy has directed large-scale soil and groundwater remediation projects to support ultimate redevelopment of distr ...
  • Gordon Thrupp, Ph.D., P.G., CHG

    Gordon Thrupp is a Principal Hydrogeologist based in California with more than 25 years of experience focused on evaluating geological and hydrogeological conditions. He has specialized in quantitative analysis of flow of groundwater and soil-gas. Gordon developed groundwater flow models as tools for assessing water resources, engineering design alternatives, and remedial options for numerous projects throughout the United States. Additionally, Gordon has conducted testing for design and perf ...
  • Lisa Van Tassell, P.E.

    Lisa Van Tassell is a Senior Principal Environmental Engineer based in California with more than 15 years of experience focused on soil and groundwater remediation systems; site investigation and characterization, including groundwater, soil, and soil gas; and litigation technical support. She specializes in developing site remediation designs, regulatory compliance strategies, work plans, feasibility studies, corrective measures studies, cost estimates, design plans and specification ...
  • Eric Suchomel, Ph.D., P.E.

    Eric Suchomel is a Principal Environmental Engineer based in California with more than 10 years of professional experience focused on remedial program management, site investigation and characterization, feasibility study preparation, remedial system design and implementation, remedial system optimization, and litigation technical support. Eric's key practice areas include program management and strategy at complex sites, application of in situ remedial technologies at industrial fac ...
Geosyntec Consultants
Geosyntec is a specialized consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

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