Fate and Transport Studies and Modeling

During the assessment and cleanup of environmentally compromised sites, a thorough understanding of the fate and transport of contaminants can be a key element in the design and choice of successful remediation solutions.

For more than 30 years, Geosyntec engineers and scientists have been recognized by industry peers for their demonstrated skill in the mathematical modeling of contaminant fate and transport in sediment and water, including underground water columns and large surface water systems. These models provide valuable insights into the complex physical, chemical, and biological processes present at contaminated sites and allow us to propose effective remediation solutions to clients based on sound, verifiable data.

After determining what chemical, biological, or photolytic reactions are underway among any contaminants of concern (fate) and how the contaminants physically move through impacted media (transport), our staff employ the supporting data for site characterization and risk assessments that, in turn, guide remediation strategies and management decisions by our clients.

Our practitioners employ a systematic modeling approach that allows for appropriate review and feedback at each stage of model development. After we determine the overall goals and objectives for the fate and transport analysis, we collect available data for a preliminary conceptual model of the system. This model improves our understanding of the site, identifies data gaps and inconsistencies in the system, and may point out the need for additional data collection or research. Once in place, the final fate and transport model can be used to predict concentrations of contaminants, make risk assessments, and evaluate various remediation options.

Depending on the type of site and media present, our models can be used to:

  • Evaluate groundwater movement, flow direction, velocity, and discharge rates
  • Understand any interactions between hydrogeologic systems
  • Develop and manage groundwater supply systems
  • Simulate changes in flow conditions
  • Determine potential impacts of contamination to nearby wells or surface water
  • Estimate leachability from soil sources to groundwater
  • Demonstrate compliance with regulatory requirements
  • Estimate vapor intrusion from groundwater and soils into buildings
  • Estimate capture zones and drinking water source protection areas

Our senior practitioners have successfully presented and defended modeling results to state and national regulatory agencies, including the U.S. Environmental Protection Agency. They also have provided peer review of groundwater models developed by others.

 

Lead Consultants

  • Nancy Bice, P.G., CEG
    Nancy Bice is a Senior Principal Engineering Geologist based in California with more than 20 years of experience focused on the characterization and remediation of sites impacted by volatile organi ...
  • Rula Deeb, Ph.D., BCEEM, PMP
    Rula Deeb is a Senior Principal Civil and Environmental Engineer based in California with more than 25 years of experience focused on private practice and academia addressing the cross-media fate a ...
  • Michael Kavanaugh, Ph.D., P.E., BCEE
    Mike Kavanaugh is a Senior Principal Environmental Engineer based in California with more than 35 years of consulting experience focused on the areas of water quality, water treatment, and groundwa ...
  • David Adilman, P.G.
    David Adilman is a Principal Hydrogeologist based in Massachusetts focused on the characterization and remediation of soil and groundwater as well as the design and implementation of large-scale co ...
  • Andrew Barnes, P.G.
    Andrew Barnes is a Principal Hydrogeologist based in California with more than 20 years of environmental consulting experience focused on remedial investigations, feasibility studies, groundwater r ...
  • Michael Berman, P.E., CHMM
    Michael Berman is a Senior Principal Engineer based in Maryland with more than 18 years of experience focused on evaluating the nature and extent of environmental contamination or developing models ...
  • Warren Brady
    Warren Brady is a Principal Geochemist based in Louisiana with more than 20 years of experience focused on the assessment and remediation of industrial, municipal, and federal sites contaminated wi ...
  • Karen Berry-Spark
    Karen Berry-Spark is a Senior Principal Hydrogeologist based in Ontario with more than 20 years of professional experience focused on the characterization and remediation of sites impacted by chlor ...
  • 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 bio ...
  • Randy Brandt, P.G.
    Randy Brandt is a Senior Principal Geologist based in California with more than 25 years of experience focused on hydrogeology with special emphasis on the return of sites environmentally impacted ...
  • Susan Hill, P.E.
    Susan Hill, P.E., a Senior Principal at Geosyntec, is an Environmental Engineer with more than 30 years of experience focused on the investigation and remediation of sediment mega sites. She has wo ...
  • Robert Ettinger
    Robert Ettinger is a Senior Principal Environmental Scientist based in California with more than 20 years of professional experience focused on the fate and transport of contaminants in the unsatur ...
  • Haydar Azzouz, P.G.
    Haydar Azzouz is a Senior Consultant Geologist based in California with more than 20 years of experience focused on the maintenance and closure of municipal solid waste and hazardous waste landfill ...
  • Todd McAlary, Ph.D., P.Eng., P.G.
    Todd McAlary is a Senior Principal Engineer with more than 25 years of international consulting experience focused on the evaluation of contaminant fate and transport in soil and groundwater. ...
  • Peter Zeeb, Ph.D., P.G., LSP
    Peter Zeeb is a Senior Principal Hydrogeologist based in Massachusetts with more than 20 years of experience focused on investigation and remediation strategy at some of the most challenging sites ...
  • Evan Cox, M.Sc.
    Evan Cox is a Senior Principal Remediation Scientist based in Ontario with more than 15 years of experience focused on managing and directing soil and groundwater remediation projects dealing with ...
  • Neal Durant, Ph.D.
    Neal Durant is a Senior Principal Engineer based in Washington, D.C. with more than 28 years of experience investigating, remediating, and managing complex contaminated sites. Neal serves ...
  • David Folkes, P.E.
    David Folkes is a Senior Principal Environmental Consultant based in Colorado with more than 35 years of experience focused on environmental and geotechnical consulting throughout the United States ...
  • Beau Hodge, P.G.
    Beau Hodge is a Principal Geologist based in North Carolina with more than 25 years of experience focused on environmental site investigation and remediation with a focus on recalcitrant compounds ...
  • Sam Williams, P.G.
    Sam Williams is a Senior Principal Hydrogeologist based in California with more than 25 years of experience focused on the characterization and remediation of soil and groundwater contamination at ...
  • Duane Graves, Ph.D.
    Duane Graves is a Senior Principal Scientist based in Tennessee with more than 30 years of experience focused on environmental biotechnology; environmental forensics; in situ groundwater, soil, and ...
  • Douglas Larson, Ph.D., P.E., LSP
    Doug Larson is a Senior Principal Civil and Environmental Engineer based in Massachusetts with more than 30 years of experience focused on the investigation and cleanup of hazardous waste sites thr ...
  • David Major, Ph.D., BCES
    David Major is a Senior Principal and the Managing Director of Savron based in Ontario with more than 30 years of experience focused on negotiating, managing and directing the development and deplo ...
  • Mark Grivetti, P.G., CHG, CEG
    Mark Grivetti is a Senior Principal Hydrogeologist based in California with more than 30 years of experience focused on characterization and remediation of hazardous waste sites, surface and ground ...
  • Chris Herin, P.G.
    J. Chris Herin is a Senior Principal Hydrogeologist practitioner in the field of environmental risk management and minimization based in Florida with more than 25 years of experience focused on the ...
  • 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 strateg ...
  • Mary deFlaun, Ph.D., BCES
    Mary deFlaun is a Senior Principal Environmental Scientist based in New Jersey with more than 20 years of experience focused on the development and implementation of in situ remediation technologie ...
  • Scott Drew, LSRP
    Scott Drew is a Principal Environmental Scientist based in New Jersey with more than 25 years of experience focused on the fields of environmental technology, site remediation, and environmental ch ...
  • Todd Hagemeyer, P.G.
    Todd Hagemeyer is a Senior Principal Hydrogeologist based in Georgia with more than 25 years of experience focused on development of environmental management solutions for the manufacturing and ser ...
  • 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 ind ...
  • Julie Konzuk, Ph.D., PEng
    Julie Konzuk is a Principal Environmental Engineer based in Canada with more than 10 years of experience focused on working with clients on the application of specialized technologies to remediate ...
  • David Reynolds, Ph.D., PEng
    David Reynolds is a Senior Principal Environmental Engineer based in Ontario focused on the development and implementation of groundwater remediation technologies and management strategies for comp ...
  • Michael Lodato, P.G.
    Michael Lodato is a Principal Geologist based in Florida with more than 25 years of experience focused on the field of hydrogeology, site assessment, and remediation using innovative technologies. ...
  • Neil Davies, C.Eng., P.E.
    Neil Davies is a Senior Principal Civil and Environmental Engineer based in Georgia with more than 25 years of experience focused on the environmental remediation of former industrial manufacturing ...
  • Bertrand Palmer, Ph.D., P.E.
    Bertrand Palmer is a Senior Principal Engineer based in California with more than 20 years of experience focused on developing innovative approaches and designs for projects involving site assessme ...
  • 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 c ...
  • Todd Creamer, P.G.
    Todd Creamer is a Principal Geologist based in New England with more than 20 years of experience in environmental consulting services, surface water hydrology, and oil and natural gas exploration a ...
  • Bruce Marvin, P.E.
    Bruce Marvin is a Senior Principal Environmental Engineer based in California with more than 15 years of consulting experience focused on remediation strategy development, technology selection, eng ...
  • Brent Miller, P.E.
    Brent Miller is a Senior Principal Chemical Engineer based in Washington with more than 24 years of consulting and industry experience focused on the evaluation, design, construction, operation, an ...
  • James Langenbach, P.E.
    James Langenbach is a Senior Principal Environmental Engineer for Geosyntec Consultants based in Florida with more than 20 years of experience focused on assisting clients with environmental assess ...
  • Peter de Haven, P.E.
    Peter de Haven is a Senior Principal Engineer based in North Carolina with 20 years of experience focused on site characterization, data management and analysis, numerical modeling, and both the co ...
  • Peter King, P.E., LSP, LEP
    Pete King is a Principal Engineer based in New England with more than 30 years of experience focused on the integration of environmental regulations and policies with his clients' industrial, insti ...
  • Marcus Ford, CGeol.
    Marcus Ford is a Senior Principal Hydrogeologist based in the United Kingdom with more than 20 years of experience focused on the assessment of contaminated land and groundwater remediation, partic ...
  • Cuneyt Gokmen, P.E.
    Cuneyt Gokmen is a Senior Principal Geoenvironmental Engineer with more than 20 years of experience focused in the areas of civil, geotechnical, and environmental engineering. Cuneyt specia ...
  • 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 manufacturi ...
  • Thierry Sanglerat, P.E.
    Thierry Sanglerat is a Senior Principal Civil Engineer based in California with more than 25 years of consulting experience focused on groundwater and soil remediation, brownfield site redevelopmen ...
  • Robert Glazier, P.G.
    Robert Glazier is a Principal Environmental Consultant based in Maryland with more than 30 years of experience focused on site remediation, risk assessment, and environmental permitting associated ...
  • James Linton
    James Linton is a Principal Environmental Scientist based in Florida with more than 25 years of experience focused on site assessment and remediation. He specializes in innovative contaminated site ...
  • John Gallinatti, CHG
    John Gallinatti is a Senior Principal Hydrogeologist based in California with more than 25 years of experience focused on quantitative hydrogeology, including groundwater modeling, environmental fa ...
  • Gary Wealthall, Ph.D.
    Gary Wealthall is a Senior Principal Hydrogeologist based in Toronto with more than 20 years of experience focused on contaminant hydrogeology research and practice. He advises regulatory authoriti ...
  • Eric Nesbit, P.E.
    Eric Nesbit is a Senior Principal Environmental Engineer with more than 15 years of experience focused on program management, executing environmental remediation actions, removal actions, and remed ...
  • Brian Hitchens, P.G., CHG
    Brian R. Hitchens is a Senior Principal Hydrogeologist based in California with more than 15 years of experience focused on the evaluation and improvement of groundwater and surface water impacted ...
  • Gordon Thrupp, Ph.D., P.G., CHG
    Gordon Thrupp is a Principal Hydrogeologist based in California with more than 25 years of experience focused on evaluating geological and hydrogeological conditions. He has specialized in quantita ...
  • Rich Kraft, P.G., CEG, CHG
    Richard Kraft is a Senior Principal Hydrogeologist based in California with more than 25 years of experience focused on diverse hydrogeologic and environmental investigation and remediation. ...
  • Veryl Wittig, P.G., CHG
    Veryl Wittig is a Senior Principal Hydrogeologist based in California with more than 20 years of experience focused on complex environmental site assessment, hazardous materials management, and reg ...
  • John Seymour, P.E.
    John Seymour is a Senior Principal Civil Engineer based in Illinois with over 30 years of experience focused on site remediation, deep foundation engineering, and construction management. His clien ...
  • Walter Grinyer, P.G.
    Walter Grinyer is a Senior Consultant Geologist based in California with more than 35 years of experience focused on geologic investigations. He has 20 years of experience as an environmental consu ...
  • Robert Veenstra
    Robert Veenstra is a Principal Environmental Engineer based in Missouri with more than 30 years of experience focused on developing and managing complex soil, groundwater and sediment investigation ...
  • Gregory Menniti, P.E., P.S.
    Gregory Menniti is a Senior Principal Civil and Environmental Engineer based in West Virginia with more than 35 years of professional experience focused on challenging projects related to water, wa ...
  • Lisa Van Tassell, P.E.
    Lisa Van Tassell is a Senior Principal Environmental Engineer based in California with more than 15 years of experience focused on soil and groundwater remediation systems; site investigation and c ...
  • Tom Krug, P.Eng.
    Tom Krug is a Principal Environmental Engineer based in Ontario focused on the evaluation and development of innovative strategies and technologies for remediation of complex contaminated propertie ...
  • James Wang, Ph.D., P.E.
    James (Yu-Sheng) Wang is a Principal Environmental Engineer based in Maryland with more than 18 years of experience focused on developing and applying innovative assessment and remediation technolo ...
  • Eric Smalstig, P.E.
    Eric Smalstig is a Senior Principal Engineer based in California with more than 20 years of environmental consulting experience focusing on industrial facilities (production and waste management) a ...
  • Jamey Rosen, P.Geo.
    Jamey Rosen is a Principal Geoscientist based in Ontario with more than 20 years of experience focused on information management system design and development and geographic information systems (GI ...
  • Jim Wragg, FGS
    Jim Wragg is a Senior Principal Hydrogeologist based in Delph with more than 20 years of experience focused on the detailed investigation, assessment and remediation of contaminated soil and ground ...
  • Jimmy Whitmer, P.G., CHMM
    Jimmy Whitmer is a Senior Principal Geologist and Hydrogeologist based in Georgia with more than 30 years of experience directing multidisciplinary projects focused on water supply development, sit ...
  • Eric Tollefsrud, P.G.
    Eric Tollefsrud is a Principal Hydrogeologist based in Minneapolis with more than 25 years of environmental consulting experience focused on the characterization and remediation of soil, soil vapor ...
  • Bruce Sass, Ph.D.
    Bruce Sass is a Senior Consultant, Environmental Scientist, and Geochemist based in Ohio with more than 20 years of experience focused on the development and implementation of chemical process impr ...
Geosyntec Consultants
Geosyntec is a specialized 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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