Hydrogeological Characterization and Modeling

Understanding how water interacts with the surface and sub-surface environment at any contaminated location is critical to designing innovative and cost-effective remediation systems or site management strategies.

A thorough delineation and understanding of the geology and hydrogeology affecting any contaminated site strengthens the conceptual site model and provides the framework for design of a groundwater remedial program, if needed. Ultimately, hydrogeological characterization and modeling affects the performance of any remediation technologies deployed as a solution.

The purpose of these investigations and models is to determine flow directions, pathways, and rates of groundwater flow, potential receptors of groundwater, potential contaminants, and the extent of contamination in the subsurface environment. Our use of bold approaches to site conceptualization frequently challenge traditional or pre-conceived notions pertaining to characterization or remedial strategies.

Some of the field methods we employ include borehole exploration (including coring) and 2D or 3D mapping of surface features. For groundwater flow information, we monitor water elevations in wells and adjacent surface waters and perform aquifer tests using pumping or slug tests. We also conduct laboratory analysis of cores and borehole flowmeters. For subsurface chemistry, we collect soil and groundwater samples for analysis. If dense non-aqueous phase liquid (DNAPL) is present, we collect samples and measure the thickness of free product.

Geosyntec's sound, reliable data coupled with our novel thinking lead to a clearer understanding of site concepts by all parties. Cost-saving benefits to our clients are often found in our implementation of the innovative remedies that emerge from our analysis of a site's hydrogeological conditions.

Additionally, Geosyntec practitioners offer clients a wealth of site characterization experience conducted under a wide range of regulatory environments, ranging from state-led programs and projects regulated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and the Resource Conservation and Recovery Act (RCRA). Our professionals have the experience base and technical knowledge to effectively advocate innovative remedial strategies on behalf of our clients. 

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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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. ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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. ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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. ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 Hydrogeologist based in Ontario with more than 15 years of experience focused on database design and management, geographic information systems (GIS), and remediation pro ...
  • 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.

Follow Us