It takes more than the best tools and technologies to achieve positive, sustainable outcomes on environmentally challenged sites. It takes the knowledge, skills, and experience of highly qualified, trained, and dedicated professionals. We believe our customer-focused team at COLUMBIA Technologies is the best in the industry. Our technical staff consists entirely of degreed and experienced geologists, chemists, and engineers who together have performed over 1,500 high-resolution site evaluations worldwide.

John H. Sohl, III – President and CEO

Co-founder of COLUMBIA Technologies, John brings to his roles of President and CEO three decades of experience directing the development of innovative and business solutions fusing science and technology. At COLUMBIA and through its partners in North and South America and Africa, John leads the company's global growth of sustainable environmental services.  John is also co-founder of the award-winning SmartData Solutions® real-time data services platform and has played an integral role in providing clients with real-time decision-making information. A former officer in the U.S. Navy nuclear submarine force, John holds a B.S. in engineering from the United States Naval Academy and an MBA from the Chaminade University of Honolulu. John is a member of the Small Environmental Business Action Coalition, the Sustainable Remediation Forum, the Society of American Military Engineers, and the National Ground Water Association.

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Brent Graves P.G. – Manager U.S. Operations

An experienced team leader and strong client advocate Brent Graves leads our U.S. operations as we continue to grow our service offerings across North America.  Brent brings to this role thirty-one years of experience in the environmental consulting industry as a Professional Geologist, Director of Technical Operations, and Chief Operating Officer.  In his work he has specialized in site investigation, remediation, and monitoring on projects throughout the Midwest and east coast.  Key to his approach is a focus on the thorough investigation of a site, attention to detail, and development of a comprehensive conceptual site model to guide the best closure strategy and maximum cost savings over the lifecycle of a project.  Brent is a member of the American Institute of Professional Geologists (AIPG), a Board member and the outgoing President of the Midwestern States Environmental Consultant’s Association (MSECA), and a member of the Associates' Committee of the Kentucky Petroleum Marketers Association (KPMA).   Brent holds a B.S. degree in Geology from Indiana University – Purdue University in Indianapolis.

Scott Pieper - Operations Manager

Scott brings 35 years of environmental project management, spill response, site remediation, and hazardous materials management experience to our team.  He has operated throughout North and South America across all of the platforms that COLUMBIA Technologies operates.  His experience includes the operation and maintenance of certified mobile environmental laboratories, high-resolution characterization tools including the Membrane Interface Probe, the Hydraulic Profiling Tool, and Laser-Induced Fluorescence systems. Pieper holds a B.S. in Geological Sciences with an emphasis in Engineering from San Diego State University. 

Samuel Trindade – Manager Latin America Operations

Samuel is based in São Paulo and serves as COLUMBIA Technologies’ Manager for Latin American operations.  Samuel brings a strong combination of field experience in drilling and high-resolution direct sensing combined with consulting in the Brazilian market.   In this role, he acts as the primary interface for project coordination, communication, and data review for COLUMBIA's projects throughout Latin America. Samuel holds a Degree in Environmental Engineering from Julio de Mesquita Filho University (UNESP) and has completed post-graduate studies in Environmental Regulation provided by CETESB Superior School.

Wendi Jacklitch – Data Analyst and Customer Support

As Information Manager, Wendi manages the flow of information and deliverables from the company’s cloud-based information system, SmartData Solutions®. She assists customers with project setups, data interpretation, and delivery of final reports and data visualizations. She has six years of experience, including one year with COLUMBIA Technologies as a field geochemist. Wendi holds a Bachelor of Science in Chemistry with Professional Option and an emphasis on soil and environmental chemistry from the University of Idaho. Her graduate work includes laser spectroscopy at Montana State University, and Chemistry Department, completing five years of research. She has been published several times in MRS Proceedings.

Susan Barrett – Leadership Development Specialist

Susan Barrett brings to COLUMBIA decades of leadership development experience.  Through her strong acumen for coaching, change management, and performance monitoring Susan provides our team with critical tools to tackle today's evolving challenges.  She plays an important role in helping our team to generate results through goal setting,  performance monitoring, career development, and process improvement.