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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 30 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 38 years of experience as a leader in industrial hygiene, safety, corporate environmental, health and safety…