Jay Thompson, PhD, PE

Jay Thompson is a Senior Environmental Engineer based in Minnesota focused on site investigation and remediation, environmental forensics, environmental cost allocation, and contaminant fate and transport at complex sites.

Jay Thompson is a Senior Environmental Engineer based in Minnesota focused on site investigation and remediation, environmental forensics, environmental cost allocation, and contaminant fate and transport at complex sites.

Jay specializes in synthesizing contaminant fate and transport evaluations, chemical forensics, statistical analyses, and site history to support environmental litigation, environmental liability valuation, and cost allocation. Clients have turned to Jay to deliver scientifically defensible contaminant forensics and liability evaluations for complex litigation at some of the largest CERCLA sites in the United States. He has conducted forensics analyses on PCBs, PAHs, petroleum hydrocarbons, chlorinated solvents, per- and polyfluoroalkyl substances (PFAS), and 1,4-dioxane. At many sites, Jay has supported clients by reducing their liability, curtailing costs associated with remediation and investigation, and identifying additional potentially responsible parties.

Clients turn to Jay for his extensive experience devising, managing, and executing site investigation programs to assess and remediate soil, sediment, and groundwater. Many of these investigations focus on understanding and quantifying the effect of diffusive mass transport in subsurface clay and silt formations, or “back diffusion,” on long-term contaminate fate, transport, and remedy performance.

To advance the state of the practice, Jay is active in applied research related to contaminant fate and transport, machine learning, sediment passive sampling, and environmental forensics. He has published and presented extensively on these topics. Jay is an adjunct professor of environmental engineering at North Dakota State University, serves on the Minnesota Pollution Control Agency’s PFAS stakeholder panel, and co-chairs the American Bar Association, Section on Environment, Energy, and Resources’ Science and Technology committee.

Contact Jay at This email address is being protected from spambots. You need JavaScript enabled to view it..

Career Summary of Jay Thompson, PhD, PE

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    Jay Thompson is a Senior Environmental Engineer based in Minnesota focused on site investigation and remediation, environmental forensics, environmental cost allocation, and contaminant fate and transport at complex sites.


    Jay specializes in synthesizing contaminant fate and transport evaluations, chemical forensics, statistical analyses, and site history to support environmental litigation, environmental liability valuation, and cost allocation. Clients have turned to Jay to deliver scientifically defensible contaminant forensics and liability evaluations for complex litigation at some of the largest CERCLA sites in the United States. He has conducted forensics analyses on PCBs, PAHs, petroleum hydrocarbons, chlorinated solvents, per- and polyfluoroalkyl substances (PFAS), and 1,4-dioxane. At many sites, Jay has supported clients by reducing their liability, curtailing costs associated with remediation and investigation, and identifying additional potentially responsible parties.

    Clients turn to Jay for his extensive experience devising, managing, and executing site investigation programs to assess and remediate soil, sediment, and groundwater. Many of these investigations focus on understanding and quantifying the effect of diffusive mass transport in subsurface clay and silt formations, or “back diffusion,” on long-term contaminate fate, transport, and remedy performance.

    To advance the state of the practice, Jay is active in applied research related to contaminant fate and transport, machine learning, sediment passive sampling, and environmental forensics. He has published and presented extensively on these topics. Jay is an adjunct professor of environmental engineering at North Dakota State University, serves on the Minnesota Pollution Control Agency’s PFAS stakeholder panel, and co-chairs the American Bar Association, Section on Environment, Energy, and Resources’ Science and Technology committee.

    Contact Jay at This email address is being protected from spambots. You need JavaScript enabled to view it..

  • Specialties: Contaminant forensics; Litigation support; Environmental cost allocation; Site investigation and remediation; Contaminant fate and transport evaluation
  • Practice Areas: Contaminated Site Assessment and Cleanup, Environmental Management
  • Disciplines: Civil Engineering, Environmental Engineering
  • Education: PhD, Civil and Environmental Engineering, Stanford University, 2015; MS, Environmental Engineering, North Dakota State University, 2008; BS, Civil Engineering, North Dakota State University, 2005
  • Registration: Minnesota Professional Engineer, PE 56682; New York Professional Engineer, PE 102019

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