Lynn McGuire, P.E.

Lynn McGuire is a Senior Principal Engineer based in California with more than 34 years of experience in process and environmental engineering consulting for air quality and greenhouse gas (GHG)…

Michael McGuire, P.E.

Michael McGuire is a Senior Principal Environmental and Civil Engineer based in California with more than 30 years of experience focused on characterizing and remediating sites affected by past industrial…

Alexander McKenzie-Johnson, P.G., L.G., L.E.G

Alexander McKenzie-Johnson is a Principal Engineering Geologist based in Texas with more than 17 years of professional experience focused on geohazard assessment and management for oil and gas clients.

Michaye McMaster, M.Sc

Michaye McMaster is a Senior Principal Remediation Scientist based in Ontario with more than 15 years of experience focused on the development, field testing, and general application of in situ…

Lelio Mejia, Ph.D., P.E., G.E.

Lelio Mejia is a Senior Principal Engineer based in California with more than 35 years of experience in geotechnical and earthquake engineering. For many years, he has focused on the…

Lonnie Mercer, P.G., CEM

Lonnie Mercer is a Senior Geologist based in Utah with more than 16 years of professional experience focused on environmental site investigation and remediation, environmental due diligence, and environmental compliance.

Brent Miller, P.E.

Brent Miller is a Senior Principal Chemical Engineer based in Washington with more than 28 years of consulting and industry experience focused on the evaluation, design, construction, operation, and optimization…

Michael J. Minch, P.E., G.E.

Michael Minch is a Senior Principal Geotechnical Engineer based in California with more than 25 years of experience focused on the design, permitting, and construction phases of waste containment facilities…

Joseph Mizerany, P.G.

Joe Mizerany is a Senior Principal Geologist based in Florida with more than 30 years of professional experience focused in the areas of environmental media assessment and remediation, complex hydrogeological…

Elaina Modlin, P.E.

Elaina Modlin is a Senior Principal Environmental Engineer based in Florida with more than 20 years of experience focused on a wide variety of environmental services including regulatory compliance and…

Andrew Montgomery, P.E.

Andrew Montgomery is a Senior Principal Engineer based in Georgia with more than 20 years of environmental consulting experience focused on developing regulatory and risk-based strategies to achieve cost-effective site…

Derek Morley, P.E.

Derek Morley is a Senior Principal Engineer based in California with more than 25 years of experience in geo-civil engineering and engineering management for dams, levees, and other water and…

Jeremy Morris, Ph.D., P.E.

Jeremy Morris is a Principal Engineer and internationally recognized subject matter expert based in Maryland with more than 18 years of experience in the waste management and renewable energy sectors.…

Ali Nasseri-Moghaddam, P.Eng.

Ali Nasseri-Moghaddam is a Principal Geotechnical Engineer based in Ontario with more than 25 years of professional experience in the areas of geotechnical, dam, and structural engineering. His expertise includes…

Barb Neary, P.E.

Barb Neary is a Principal Energy Transition Team member based in Colorado with more than 20 years of experience focused on environmental permitting and planning in the energy sector, specializing…

Adrienne Nemura, P.E.

Adrienne Nemura is a Principal Water Resources Engineer based in Ohio with nearly 35 years of experience focused on helping clients identify cost-effective and sustainable solutions to meet their water…

Eric Nesbit, P.E., CQM

Eric Nesbit is a Senior Principal Environmental Engineer with more than 25 years of experience focused on program management, executing environmental remediation actions, removal actions, and remedial construction projects within…

Jenna Newcombe, CHMM

Jenna Newcombe is a Senior Environmental Consultant based in Massachusetts with more than 20 years of experience in environmental management. She has advised some of the largest property owners in…

Joe Niland, P.G.

Joe Niland is a Senior Principal Geologist based in California with more than 25 years of experience focused on regulatory compliance support in the areas of mine reclamation, chlorinated solvent…

Darrell Nicholas, P.E.

Darrell Nicholas is a Principal Engineer based in Tennessee with more than 35 years of experience focused on construction management and quality assurance for a wide range of complex, multiple…

David Oliver

David Oliver is a Senior Construction Manager based in California with more than 30 years of experience focused on managing general construction and environmental remediation projects for clients in the…

Rebecca Oliver, P.E.

Becky Oliver is a Principal Engineer based in California with more than 15 years of experience in geoenvironmental engineering; mine infrastructure, tailings impoundment, and waste closure design; and vapor and…

Carolina Ortega

Carolina Ortega is a Principal based in Texas with 20 years of experience in sustainability, climate change, and Environmental, Social and Governance (ESG) issues in the oil and gas, consumer…

Majdi Othman, Ph.D., P.E.

Majdi Othman is a Senior Principal Engineer based in Georgia with more than 25 years of engineering experience focused on geotechnical, environmental, and civil engineering projects.

Jason Paul, P.G.

Jason Paul is a Principal Geologist based in California with more than 30 years of experience focused on soil, soil vapor and groundwater investigation and remediation for sites in the…

James Peale, RG, LHG

James Peale is a Principal Hydrogeologist based in Portland, Oregon with more than 25 years of experience focused on legacy site management, contaminant fate and transport, and environmental forensics.

Tom Peel, Ph.D.

Tom Peel is a Senior Principal based in Florida with more than 20 years of experience focused on environmental science and engineering including the development of regulatory and risk-based strategies…

Juan Pestana, Sc.D., P.E.

Juan Pestana is a Senior Principal Geotechnical Engineer with more than 30 years of experience focused on geotechnical and geotechnical earthquake engineering.

Chriso Petropoulou, Ph.D., P.E., BCEE

Chriso Petropoulou is a Senior Principal Environmental Engineer based in Illinois with more than 25 years of consulting experience focused on a wide variety of clients in the industrial manufacturing…

Brian Petty, P.E.

Brian Petty is a Senior Principal based in California with more than 17 years of experience focused on chemical and civil engineering, industrial water management, water and wastewater treatment plant…

Steven Poirier, Ph.D., P.E.

Steve Poirier is a Principal Engineer based in Massachusetts with more than 15 years of experience focused on contaminated site assessment and remediation, including Superfund, design and construction of geoenvironmental…

Al Preston, Ph.D., P.E.

Al Preston, Ph.D., P.E., is a Principal Engineer based in California with more than 16 years of experience leading and managing complex water resources projects involving hydraulics, hydrodynamics, and hydrology.…

Dale Prokopchak, CIH, CSP

Dale Prokopchak is a Principal Industrial Hygienist and Occupational Safety Specialist with more than 30 years of experience as a leader in industrial hygiene, safety, corporate environmental, health and safety…

Sean Ragain, R.G.

Sean Ragain is a Senior Principal Geologist based in Oregon with more than 25 years of experience focused on providing hydrogeologic and environmental consulting services to both private industry clients…

Thomas Ramsey, P.E.

Tom Ramsey is a Senior Principal Civil Engineer based in Maryland with more than 30 years of experience focused on engineering design, construction management, and economic analyses associated with containment…

Michael Reardon, P.E.

Mike Reardon is a Principal Environmental Engineer based in California with more than 20 years of experience focused on due diligence, site assessments, and soil, soil vapor, and groundwater remediation…
Page 5 of 8