Publications & Presentations

Working with our clients, Geosyntec professionals prepare technical papers and presentations that document the significant findings of our project work. Working with academic colleagues and government researchers, we publish and present the findings of our research at forums with an international reach.

Today, nearly 10 percent of our annual revenue is associated with applied research and development on a variety of topics including soil and groundwater remediation, geotechnical engineering for highways, landfill gas management systems, and urban stormwater best management practices.

Evaluation of a Groundwater Plume Using Innovative Techniques

Recommended Soil Gas Sampling Techniques for Vapor Intrusion Investigations

Soil Gas Sampling Methods

Modeling the Vapor Intrusion Pathway

Sub-Slab Soil Gas Monitoring for Assessing Subsurface Vapor Intrusion to Indoor Air

Spatial and Temporal Variability in Hydrocarbon and Oxygen Concentrations Beneath a Building Above a Shallow NAPL Source

The Effects of Purge Rate and Volume on Sub-slab Soil Gas Samples

Beyond Screening - The Site Characterization Process

Regulatory Perspectives on Vapor Intrusion

Practical Considerations for Vapor Intrusion Investigations

A Practitioner's Perspective on Vapor Intrusion

Key Considerations for Vapor Intrusion Evaluations

Strategy for Assessment, Data Analysis, and Interpretation of Subsurface Vapor Intrusion

Approaches and Methods Influencing Observational Data

Vapor Intrusion: Regulatory Drivers and Technical Challenges

Presentation of the First Draft Best Practices Manual for Site-Specific Assessments of Subsurface Vapor Intrusion to Indoor Air

Subsurface Vapor Intrusion, Challenges and Future Directions

Measured Attenuation Coefficients for Soil Gas to Indoor Air, Runcorn, Cheshire, UK

The Fresh Water Lens and its Effects on Groundwater to Indoor Air Attenuation Coefficients

Vapor Intrusion: Regulatory Drivers, Challenges, and Management Issues

Federal Guidance on Vapor Intrusion, History and Status

Vapor Intrusion into Indoor Air, with a focus on New Jersey

Empirical Experience Gathering Data to Assess Vapor Intrusion

Strategies for the Site-Specific Assessment: How to Protect Yourself from the Hidden Traps

Key Considerations for Evaluating the Vapor Intrusion Pathway

Management Decisions for Assessing Subsurface Vapor Intrusion into Indoor Air

Intrusion of Subsurface Vapors into Buildings - Chlorinated Solvents Case Studies

Designing Aqueous Amendment Delivery Systems for In-Situ Groundwater Remediation

In-Situ Bioremediation of Perchlorate: Comparison of Results from Multiple Field Demonstrations

Alpha Factors, Measured and Modeled: A Case Study

Evidence of Intrinsic Degradation in a Carbonate Aquifer

Characterizing the Vertical Profile of Contaminant Concentration and Mass Flux in Groundwater Using the Electromagnetic Borehole Flowmeter and Depth-Discrete Sampling

Vapor Intrusion Modeling for Contaminated Properties

The Impact of Background Concentration on Vapor Intrusion Assessment

Key Modeling Considerations For Subsurface Vapor Intrusion Evaluation

Identifying Key Factors and Preferred Lines of Evidence

Migration of Soil Gas Vapors to Indoor Air: An Empirical Assessment of Subsurface Vapor-to-Indoor-Air Attenuation Factors Using Data from the CDOT-MTL Denver, Colorado Site

Vapor Intrusion Modeling: Theory and Implications

Vapor Migration to Indoor Air Fate and Transport Considerations

Practical Considerations for the Assessment of the Vapor Migration to Indoor Air Pathway

A Pilot-Scale Demonstration of Surfactant-Enhanced PCE Solubilization at the Bachman Road Site: (1) Site Characterization and Test Design

Tools for Evaluating Enhanced Anaerobic Bioremediation for Chlorinated Solvents

Full-Scale Design of a Biobarrier. Bioaugmentation or Biostimulation?

Surfactant Flushing Pilot Test Results: Enhanced Solubilization and Biodegradability of PCE

Preventing Contaminant Discharge to Surface Waters: Plume Control with Bioaugmentation

Assessing biotic and abiotic contributions to chlorinated solvent transformation in iron reducing and sulfidogenic environments."

Options for Mitigation of Vapor Intrusion

The First Successful Hawaii Voluntary Response Program Site, Former Dole Cannery, Home Depot Development - How Engineering Controls Facilitated Development of Contaminated Property

Getting to Redevelopment: A Case Study of the Implementation of Engineering Controls versus Site Remediation

Design and Performance of an Enhanced Bioremediation

Efficient Three-Dimensional Characterization of TCE Transport in a Sandy Aquifer/Surface Water System

Advances in Molecular Technologies: Putting the Third Line of Evidence First

Performance Evaluation of Dehalogenation of DNAPLs using Emulsified Zero-Valent Iron

Optimization of Emulsified Zero-Valent Iron Particles for Reduction of DNAPL

Successful Bioaugmentation to Achieve Complete Dechlorination of Chlorinated Ethenes and Validation through Molecular Monitoring

Successful Field Demonstration of Bioaugmentation to Degrade PCE and TCE to Ethene. Bioaugmentation, Biobarriers, and Biogeochemistry

Sufficiently Impervious Secondary Containment for ASTs

Pilot Test Evaluation of Nanoscale Iron for In Situ Remediation of Chlorinated Solvents at Edwards AFB

Field Demonstration of Biostimulation and Bioaugmentation for Remediation of Chlorinated Solvents in a Sand Aquifer

Nanoscale Zero Valent Iron: An Emerging Technology for In Situ Remediation of Halogenated Organics and Heavy Metals in Groundwater

Recent Advances in Bioremediation of Chlorinated Solvents in Groundwater

A Molecular Assay for Evaluating Performance of Natural and Engineered Bioremediation of Chlorinated Solvents

Simultaneous Treatment of Perchlorate, NDMA, and Chlorinated Solvents using Nanoscale Iron

Modeling Fate and Transport of Chlorinated Organic Compounds in the Subsurface

Enhanced Bioremediation of DNAPLs in a Fractured Limestone Aquifer: Bench Test Results

Bioaugmentation to Enhanced Anaerobic Bioremediation of Chlorinated Solvents in Groundwater: Six Case Studies

Rapid and Complete Treatment of Trichloroethene via Bioaugmentation in an Active Biobarrier

Cometabolic and Inhibitory Interactions during Anaerobic Biodegradation of Alkylbenzene Mixtures

Microbial Forensics

Conceptual Site Models of Vapor Intrusion

Physical Versus Chemical Effects on Bacterial and Bromide Transport as Determined from On Site Sediment Column Pulse Experiments

Bioaugmentation for Remediation of Chlorinated Ethenes: Technology Development, Status, and Research Needs

Natural Attenuation of a Chlorinated Solvent Plume, Manufacturing Facility, Michigan

Application of a Vital Fluorescent Staining Method for Simultaneous, Near-Real-Time Concentration Monitoring of Two Bacterial Strains in an Atlantic Coastal Plain Aquifer in Oyster, Virginia

The Role of Physical, Chemical and Microbial Heterogeneity on the Field-Scale Transport and Attachment of Bacteria

A Modular Injection System, Multilevel Sampler, and Manifold for Tracer Tests

Theoretical Prediction of Collision Efficiency Between an Adhesion-Deficient Bacterium and Aquifer Sediments

Bioaugmentation

Simultaneous Transport of Two Bacterial Strains in Intact Cores from Oyster, Virginia: Biological Effects and Numerical Modeling

Relative Dominance of Physical versus Chemical Effects on the Transport of Adhesion-Deficient Bacteria in Intact Cores from South Oyster, Virginia

Evaluation of Biostimulation for Treatment of a Multicontaminant Plume in a Challenging Environment

Mitigation of the Vapor Intrusion Pathway at Four Chlorinated Solvent Sites

Application of Bioremediation in Challenging Conditions

Comparison of Injection Schemes for Bioaugmentation at a TCE Site

Design of an In Situ Containment and Test Cell for Demonstrating Source Area BioRemediation (SABRe)

Project SABRE - Field-Scale Demonstration of TCE DNAPL Bioremediation

Remediation Limitations Due to Non-NAPL Source Zones: SABRE Case Study

The American Petroleum Institute Protocol for Evaluating Natural Attenuation of MTBE

Applicability of Multilevel Monitoring Well Completion Technologies for Karst Dolomite

Full-Scale Implementation of Anaerobic Bioaugmentation in an Aerobic Aquifer

Using Compound Specific Stable Isotope Analyses to Support Trichloroethene (TCE) and Methyl tert-Butyl Ether (MTBE) Biodegradation in Contaminated Subsurface Environments

Risk Management Approaches at Vapor Intrusion Sites - Chlorinated Solvents Case Studies

Geochemical and Microbiological Characterization of In Situ Reductive Dechlorination in Fractured Bedrock

Degradation of Co-Disposed Chlorinated Solvent under Anaerobic Conditions and Resulting Accelerate Degradation Rates with KB-1

TCE Bioremediation in a Deep Basalt Aquifer

Design and Implementation of a Pilot Test for Bioremediation of a Concentrated TCE Plume in Fractured Bedrock

Design and Construction of a Groundwater Recirculation System in Hydraulically Dynamic Fractured Bedrock

Microcosm Study of TCE Degradation by KB-1(r) in High Sulfate Groundwater

Laboratory Study of Treatment of Trichloroethene by Chemical Oxidation Followed by Bioremediation

Field Demonstration of DNAPL Dehalogenation using Emulsified Zero-Valent Iron

Page 14 of 16