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 35 years of experience directing the development of innovative business solutions fusing science and technology to advance the state of environmental services. At COLUMBIA, John is responsible for the overall direction of corporate activities, the quality of the company’s field services and business development. 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 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 – 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.


Brian McCann – Sales Manager USA

With over 20 years of experience, Brian has successfully directed multi-million dollars in sales of professional services, as well as communications and leadership development products for individual and organizational development. Before joining COLUMBIA Technologies, Brian served as the Regional Sales Consultant for Education and Government at CPP, Inc. where he directed the sale of the highly renowned Myers-Briggs Type Indicator® instrument to the Federal Government and other institutions throughout the US. Brian offers extensive knowledge of Federal Government procurement and government markets. This experience is instrumental in his role as Federal Programs Manager, where he is focused on deepening COLUMBIA Technologies’ relationships and opportunities in the Federal sector.   He earned an M.S. in Technology and Human Affairs from Washington University.



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 the primary interface for project coordination, communication, and data review for COLUMBIA's projects throughout Latin America. Samuel holds an  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.


Anthony Herrmann – Geologist

Anthony is an experienced geologist with broad experience in environmental site assessments, groundwater assessments, and hazardous waste site audits across the U.S. is a strong addition to the Columbia Team. With strong experience in drilling oversight he has conducted numerous geotechnical assessments interpreting, classifying, and logging, and modeling core samples. Anthony conducted operation and maintenance (O&M) activities on soil vapor extraction (SVE) systems, and pump and treat systems. He is also experienced in emergency response activities including interaction with state regulatory agents, property owners, and emergency response crew. Anthony earned his B.S. degree in geology at Clemson University.


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.



Thomas Schruben – Senior Technical Advisor

Tom Schruben brings to COLUMBIA decades of experience in environmental consulting, work at the U.S. EPA, insurance underwriting, litigation, and environmental advocacy.  He has consulted with numerous property buyers, property sellers, facility operators, state regulators, and law firms concerning environmental compliance and risk management.  Tom has played a key role in the redevelopment of multiple Brownfield sites, serves on UL Standards Technical Panels 58, 1316, 1746, and 971; help develop ASTM 2733 for investigating petroleum equipment failures .  He currently serves as the Chair of the State of Maryland ad hoc Committee on Oil since 2007 to educate, to resolve complex regulatory and compliance issues, and to recommend changes in regulations and processes involving the Office of Air, Oil Control, Weights and Measures, and the Office of the Comptroller.



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 by through goal setting,  performance monitoring, career development, and process improvement.