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Krzysztof Jesionek is a Principal Environmental Engineer based in California with more than 35 years of experience focused on solid and hazardous waste management, including facility design and closure, permitting,…
Jill Johnson is a Principal Hydrogeologist based in Florida with more than 20 years of experience focused on a wide range of environmental projects, including groundwater monitoring and reporting, contamination…
Mark Johnson is a Principal Consultant based in Maryland with more than 23 years of experience focused on transactional support, site investigation and remediation, subsurface vapor intrusion to indoor air,…
Ronald Johnson is a Senior Principal Geotechnical Engineer based in California who has been focused on the most seismically active areas of the United States throughout his career. He has…
Marty Jones is a Principal Environmental Scientist based in South Carolina with more than 35 years of professional experience focused on air quality permitting and compliance, environmental compliance auditing, due…
Geosyntec Consultants
Geosyntec is a 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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