Mark Johnson
Mark Johnson is a Senior Principal Consultant based in Maryland with more than 28 years of experience focused on transactional support, site investigation and remediation, subsurface vapor intrusion to indoor…
Lange Jorstad, Ph.D.
Lange Jorstad, Ph.D., is a Principal Contaminant Hydrogeologist with 25 years’ experience in the design, management and delivery of contaminated land assessment and remediation services and related corporate advisory services…
Todd Kafka, P.G.
Todd Kafka is a Senior Principal Hydrogeologist based in Florida with more than 26 years of professional experience focused on site assessment, remediation, and hydrogeological investigations for private and public…
Michael Kavanaugh, Ph.D., P.E., BCEE, NAE
Mike Kavanaugh is a Senior Principal Chemical and Environmental Engineer based in California with more than 40 years of consulting experience focused on water quality management, water treatment, and the…
Seth Kellogg, P.G.
Seth Kellogg is a Principal Geologist based in New Jersey with 25 years of experience in the areas of project management, project planning, remedial investigation, feasibility study, remedial design, data…
Jason Kerstiens, P.E.
Jason Kerstiens is a Principal Civil and Environmental Engineer based in Colorado with more than 20 years of experience focused on process engineering, regulatory compliance, water resource optimization, and strategic…
Wendy Key, PG
Wendy Key is a Principal Geologist based in California with more than 15 years of environmental due diligence, environment, health & safety (EHS) regulatory compliance, and contaminated site investigation experience.
Adam King, PE
Adam King is a Senior Principal Civil Engineer based in California with more than 20 years of environmental consulting experience focused on the assessment and remediation of impacted soil, soil…
Jeffrey King, PhD, PE, CFM
Jeffrey King is a Principal Engineer based in Florida with more than 25 years of experience focused on hydrogeology, hydrology, water resources, and coastal engineering. He models and analyzes watersheds,…
Travis Kline, MEM, BCES
Travis Kline is a Senior Principal Toxicologist based in Washington, D.C. with more than 25 years of experience focused on human health risk assessment and applied toxicology.
Jerko Kocijan, Ph.D., P.E., G.E.
Jerko Kocijan is a Principal Engineer based in California with more than 15 years of experience in geotechnical site characterization, geologic and seismic hazards assessment, and analysis and design of…
Rachel Klinger, P.E., BCEE
Rachel Klinger is a Senior Principal Engineer based in Florida with more than 12 years of environmental consulting experience focused on providing groundwater, soil, and sediment assessments; remedial system technology…
Justin Knight, P.E.
Justin Knight is a Principal Environmental Engineer based in Georgia with more than 15 years of experience focused on managing federal environmental projects in the areas of vapor intrusion (VI)…
Julie Konzuk, Ph.D., PEng
Julie Konzuk is a Senior Principal Engineer based in Ontario with more than 20 years of experience focused on working with clients in Canada, Australia and the United States on…
Karen Kosiarek, P.E.
Karen is a Senior Principal Engineer based in Colorado with more than 25 years of practice in site investigation, remediation (soil, groundwater, vapor), CERLCA RI/FS, brownfields and sediment sites. She…
Eric Kovich, P.E.
Eric Kovich is a Senior Principal Engineer based in Florida with more than 20 years of professional experience focused in the areas of Health, Safety, Security, and Environment (HSSE) regulatory…
Allison Kreinberg
Allison Kreinberg is a Senior Scientist based in Ohio with experience in the assessment and remediation of sites impacted by chlorinated solvents and metals, coal combustion residual (CCR) management, and…
Rich Kraft, P.G., CEG, CHG
Richard Kraft is a Senior Consultant Hydrogeologist based in California with more than 30 years of experience focused on diverse hydrogeologic and environmental investigation and remediation projects.
Ganesh Krishnan, P.E., D.WRE, CPESC, NCEES
Ganesh Krishnan is a Senior Principal Engineer based in Georgia with more than 20 years of experience focused on water resources and geoenvironmental engineering.
Joseph Kula, P.E.
Joe Kula is a Senior Principal Engineer based in Maryland with 40 years of experience in civil-geotechnical engineering services focused on dams and reservoirs, levees and flood mitigation projects, waste…
Jeffrey Kurtz, Ph.D.
Jeffrey Kurtz is a Senior Consultant and economic geologist based in Colorado with more than 30 years of experience as a consulting geologist and geochemist. He has extensive geochemistry, statistics…
Kyle LaClair, P.E.
Kyle LaClair is a Principal Engineer based in Virginia with more than 20 years of experience focused on developing and permitting civil infrastructure projects.
Michael Lambert
Michael Lambert is a Senior Principal Consultant based in Pennsylvania with more than 15 years of experience focused on managing and implementing soil and groundwater investigations and remediations under both…
James Langenbach, P.E.
James Langenbach is a Senior Principal Environmental Engineer based in Florida with more than 20 years of experience focused on assisting clients with environmental assessments; remediation design and treatment system…
Douglas Larson, Ph.D., P.E., LSP
Doug Larson is a Senior Principal Engineer who has worked on the investigation and cleanup of hazardous waste sites since 1985.
Dan LaPorte, P.GEO
Dan Laporte is a Principal Hydrogeochemist based in Ontario with more than 11 years of experience focused on acid mine drainage and metal leaching characterization and mine waste and site…
David Latham
David Latham is a Senior Hydrogeologist based in Florida with more than 30 years of experience focused on the management and performance of site assessments and remediation activities. He is…
Marc Leisenring, P.E.
Marc Leisenring is a Senior Principal Water Resources Engineer based in Oregon with more than 20 years of experience focused on stormwater master planning, watershed and storm system modeling, environmental…
Kristoffer Lindö
Kristoffer Lindö is a Principal Geologist based in Sweden with more than 22 years of experience leading and conducting large cross-border environmental investigations, environmental due diligence projects, corporate mergers and…
James Linton
James Linton is a Principal Environmental Scientist based in Florida with more than 30 years of experience focused on site assessment and remediation. He specializes in innovative contaminated site investigations,…
Marcelo Llano, PhD, RPEQ
Marcelo Llano, PhD, is a Principal Geotechnical Engineer based in Australia focused on providing geotechnical consulting and numerical modeling to large projects in Australia and Papa New Guinea. He specializes…
Kylie Lloyd
Kylie Lloyd is a Senior Principal Environmental Scientist based in Australia with more than 25 years of international experience in contaminated site auditing, assessment and remediation, risk assessment, and supply…
Wade Ludlow, CPEng, NER, RPEQ
Wade Ludlow is a Senior Principal Geotechnical, Civil, and Water Resources Engineer based in Australia with more than 12 years of experience focused on tailings storage facilities, civil structures, liner…
Scott Luettich, P.E.
Scott Luettich is a Senior Consultant Geotechnical Engineer based in New England with more than 30 years of experience as the lead designer and project manager for the design, permitting,…
Leah MacKinnon, P.Eng.
Leah MacKinnon is a Senior Principal Engineer with more than 20 years of professional experience in the United States, Canada, and Europe focusing on remediation of groundwater containing recalcitrant and…
David Major, Ph.D., BCES
David Major is a Senior Principal based in Ontario with more than 30 years of experience focused on negotiating, managing and directing the development and deployment of cost-effective remediation strategies…
