2026 Virtual Environmental Conference

Presented by Jennifer Borski, Wisconsin DNR

Wisconsin updated its comprehensive vapor intrusion guidance in January 2026 and guidance on investigating preferential pathways, including conduits, in September 2026. This session will provide a high-level overview of key updates to each guidance, including screening considerations, passive sampling, and using conceptual site models and multiple lines of evidence to drive investigation and mitigation decision-making.

Jennifer Borski, Wisconsin DNR
Jennifer Borski is the Vapor Intrusion Team Leader in the Remediation and Redevelopment Program with the Wisconsin Department of Natural Resources (WDNR), located in Oshkosh, Wisconsin. The team works to identify policy issues, develop guidance and provide training regarding the vapor intrusion (VI) pathway. The team also provides statewide technical support at complex contaminated sites, primarily where chlorinated solvents were utilized in mixed-use areas, including historical dry cleaners, machine shops, metal platers, paper mills, and manufacturing facilities. Jennifer also serves as the WDNR’s liaison with the Wisconsin Department of Health Services related to VI issues. She served on the Interstate Technology Regulatory Council (ITRC) Vapor Intrusion Teams developing mitigation guidance and training from 2019-2020 and updating VI guidance and developing training from 2024-2025. Jennifer is currently an instructor with ITRC for the Vapor Intrusion Toolkit published in January 2026. She is a member of the Assoc. of Vapor Intrusion Professionals (AVIP) and Indoor Environments Assoc (IEA). Jennifer graduated from the University of Wisconsin – Eau Claire in 1996 with a Bachelor of Science degree for Geology and Mathematics.

Presented by Dave Folkes, PE, Geosyntec Consultants, Inc.

A variety of vapor intrusion (VI) mitigation technologies have evolved over the past four decades, including passive barriers, sub-slab depressurization (or active soil depressurization), positive building pressures, enhanced ventilation, air purification units, and other technologies. Selection of any of these based on what is most popular, what was installed at your last site, or what stakeholders simply prefer may (hopefully) end up doing the job but will not necessarily be the most reliable or cost-effective approach and, in some cases, may fail to meet performance objectives. A more rational approach to VI mitigation will be discussed during this presentation, which begins with an understanding of the building and subsurface conditions and processes that are causing vapor intrusion to occur at a site. By applying the first principles of VI, we’ll discuss how manipulation of the VI pathway by various technologies can reduce indoor air concentrations, to what degree they can be reduced, where they should be applied, and how their performance might vary over time. This approach is more likely (than hoping for the best) to lead to a VI strategy that meets the performance objectives for a site.

Dave Folkes, PE, Geosyntec Consultants, Inc.
David Folkes, P.E. (CO) is a Senior Principal with Geosyntec Consultants, Inc. and has worked on hundreds of vapor intrusion (VI) projects across North America and overseas over the past 28 years. He has been extensively involved with the development of VI practice and guidance in the US, including presentations at numerous EPA, state, and industry meetings and conferences. Dave has helped several state agencies with VI guidance development and training and was a member of ITRC’s VI, Petroleum VI, Mitigation Training, and VI Update guidance teams. He has overseen the design, installation, and operation of VI mitigation systems at new and existing single and multi-family residential, commercial, industrial, and institutional buildings impacted by VOCs, PHCs, and landfill gas. Dave has evaluated and designed a wide variety of VI mitigation systems, including active and passive systems using a variety of barrier and venting technologies, HVAC modifications, ICs, and other vapor control strategies. His research and publications have focused on mitigation system performance, aerated floor systems, and use of VI pathway principles for mitigation system design.

Presented by Craig Cox, CPG, Cox-Colvin and Associates, Inc.

Assessing the vapor intrusion pathway requires a clear understanding of volatile organic compound (VOC) concentrations and distribution beneath buildings. This is especially vital for commercial and industrial sites with large footprints, long histories of chemical use, and potential past releases. Inadequate sampling risks underestimating vapor intrusion, which can lead to insufficient mitigation and expose occupants to harmful health risks.

To determine sample sizes during planning, guidance documents typically scale sampling density primarily by building square footage. While practical, this square-footage approach may fail to reflect the actual distribution of sub-slab VOCs.

Using existing statistical evaluations from two high-definition industrial manufacturing sub-slab datasets as a guide, a hybrid approach to site characterization has been developed. Combining field screening techniques with focused analytical sampling allows environmental teams to delineate subsurface variability in real time, focus laboratory expenditures on high-risk zones, and achieve a more accurate assessment of spatial distribution and concentration of sub-slab VOCs.

Craig Cox, CPG, Cox-Colvin and Associates, Inc.
Craig Cox currently serves as President and Principal Scientist for Cox-Colvin & Associates, Inc, and is responsible for providing managerial and technical oversight on major environmental projects conducted by the firm under RCRA, CERCLA, and Brownfield programs.  Cox-Colvin & Associates, Inc., founded in 1995, provides environmental consulting services to public and private sector clients throughout the United States. 
 
In addition to his consulting activities, Mr. Cox provides lectures and poster presentations at numerous regional and international conferences on the topics of groundwater contaminant migration and remediation, source area evaluations, and the assessment of vapor intrusion migration pathways.  Mr. Cox is the inventor of the Vapor Pin® Sampling Device used worldwide and is the primary architect of a variety of environmental database applications, including Data Inspector^TM.
 
Mr. Cox received his B.S. and M.S. degrees in Geology and Mineralogy from The Ohio State University and a Professional Degree in Hydrogeology from the Colorado School of Mines.  Mr. Cox is a founding member and sits on the board of the Association of Vapor Intrusion Professionals (AVIP).

Presented by Mark Kram, Ph.D., Groundswell Technologies, Inc.

Traditional methods for assessment of volatile organic compounds (VOCs) in indoor air can result in misinterpretation, wasted resources and time, and extend liability and public exposures. The initial challenge is to determine whether the source of the VOC detection is from intrusion or from indoor sources. Randomly-timed time-integrated samples offer no chance of resolving this in a timely manner, resulting in additional sampling rounds with identical limitations.

Since the 1980s risk guidance has required conservative exposure assessment and encouraged practitioners to base risk management decisions on reasonable maximum exposure (RME). Agencies and stakeholders have continued to rely upon methods that exhibit an elevated probability of underestimation and false negative results. Seasonal sampling campaigns do not result in RME based results or decisions because prevailing pressure conditions control vapor intrusion flux dynamics. Agency concurrence does not insulate parties from liability when the agencies do not adhere to their own risk management criterion.

Several approaches are available to rectify this situation. Outcomes include rapid estimation of RME (e.g., one field effort), source attribution of indoor VOC exceedances, appropriate risk management decisions, and expedited reduction of exposure risk and liability. This presentation will include descriptions and examples of these options.

Mark Kram, Ph.D., Groundswell Technologies, Inc.
Dr. Mark Kram is the Founder and Chief Scientist for Groundswell Technologies, LLC, a group specializing in automated Cloud based monitoring and modeling of environmental sensor and analytical instrumentation networks. Dr. Kram earned his Ph.D. in Environmental Science and Management from the University of California at Santa Barbara, an M.S. degree in Geology from San Diego State University, and his bachelor’s degree in Chemistry from the University of California at Santa Barbara. He has over 40 years of experience developing and deploying innovative environmental assessment techniques, has authored articles, national standards and book chapters on the subject, and has taught graduate level courses on related topics. Dr. Kram is an internationally recognized expert in site characterization and remediation, and has been instrumental in the areas of sensor development and implementation, innovative GIS applications, DNAPL site characterization, chemical field screening, well design, direct push well acceptance, mass flux/discharge based remediation performance, vapor intrusion, and groundwater basin yield and storage change assessment. Dr. Kram is credited with demonstrating that direct push monitoring wells perform as well as drilled wells, and his related published efforts served as critical ITRC, ASTM and regulatory references that resulted in industry and agency cost savings exceeding tens of millions per year. Dr. Kram is the Chair of ASTM Subcommittee D18.21 (Groundwater and Vadose Zone Investigations), the recipient of the NGWA’s prestigious Technology Award, and received the ASTM Committee D18 Technical Editors Award.

Presented by Louis Meschede, MESH Environmental LLC

The Sturgis Municipal Wells Superfund Site in Sturgis, Michigan is the subject of ongoing investigation and remediation of soil and groundwater impacted by historical releases of trichloroethylene (TCE). In 2016, the potential for TCE vapor migration through soil and intrusion into overlying homes was identified as a concern in a residential neighborhood whose occupants are largely Spanish-speaking. Standard English-language outreach materials presented practical barriers to obtaining voluntary indoor air sampling access, communicating individual results, and securing consent for mitigation. The objectives of the work were to (1) inform residents of site conditions and build rapport in their preferred language, (2) obtain timely access for indoor air sampling, (3) clearly communicate individual sampling results, (4) where necessary, coordinate temporary relocation where indoor air TCE concentrations exceeded Michigan Department of Health and Human Services (MDHHS) health-based screening values, and (5) secure agreements enabling installation of sub-slab depressurization (SSD) systems and long-term performance testing and equipment operations and maintenance (O&M).

Louis Meschede, MESH Environmental LLC
Louis Meschede is an environmental professional with more than 40 years of experience in environmental consulting, groundwater hydrology, contaminated site investigation, remediation, and community engagement. He holds a Bachelor of Science in Agronomy/Soil Science and a Master of Science in Hydrology/Groundwater.

Throughout his career, Louis has worked at the intersection of science and people, helping technical teams, attorneys, regulatory agencies, and communities navigate complex environmental issues. His expertise includes groundwater investigations, soil and vapor intrusion, PFAS, Superfund and state-led cleanup projects, and environmental due diligence. He is particularly recognized for translating technical information into clear, understandable language and building trust among diverse stakeholders.

In recent years, Louis has focused on community relations for environmental remediation projects, serving as a liaison between responsible parties, consultants, government agencies, and affected residents. His calm, respectful approach has helped foster cooperation, reduce conflict, and support successful project outcomes.

Presented by Julio Zimbron, Ph.D., E-Flux

Biodegradable contaminants break down into dead-end products in stoichiometric proportions. This allows direct field measurement of degradation rates via respirometry. This presentation explores how these principles apply to petroleum and chlorinated solvents using multiple case studies to aid stakeholder site management decisions. Petroleum and chlorinated solvents undergoing degradation produce carbon dioxide as a final end-product in soil. E-Flux technique captures this soil gas efflux using a passive surface trap deployed for several days. Radiocarbon (C14) analysis corrects the measurement by removing interferences producing modern carbon CO2 (from natural soil products). The resulting time-weighted average fossil fuel CO2 flux provides a direct measure of the field rate of contaminant biodegradation. Tested for more than a decade at hundreds of sites, this method provides a direct alternative for measuring contaminant degradation rates of both petroleum and chlorinated contaminants. These rates establish a baseline for active remedies, risk assessments, and site management.

Julio Zimbron, Ph.D., E-Flux
Dr. Julio Zimbron is the founder and president of E-Flux, specializing in environmental measurements for groundwater NAPL contamination sources. He holds a Ph.D. in chemical engineering from Colorado State University, where he serves as affiliated faculty. His diverse professional background spans environmental consulting, industrial research and development, and academic research. An expert in natural source zone depletion (NSZD) and NAPL distribution and mitigation, Dr. Zimbron holds six patents and has authored numerous technical papers and guidance documents. He presents his work at national and international conferences and workshops.

Presented by Bill Brab, PG, CPG, AST Environmental, Inc.

One of the most challenging regimes for in situ remediation is a transition zone; this is a zone that separates the overburden from competent bedrock and is typically partially weathered bedrock, weathered bedrock, or saprolite. There is no better example of this geologic setting than the Passaic Formation- a mapped bedrock unit that is predominantly located in the Northeast. In New Jersey, much of the historical manufacturing and industrial sector was situated above this geologic unit and, typically, their historical impacts are realized as volatile organic compounds (VOCs) in overburden, transition zone, and bedrock. While most remediation efforts in the Passaic Formation have focused primarily on overburden impacts, and to a limited extent the competent bedrock, the transition zone is typically not well characterized or remediated. Colloquially, our organization calls that transition zone the “Passaic Gap”. This is the most problematic zone keeping a site from closure or monitored natural attenuation.

Unfortunately, the transition zone is usually the last zone to be addressed- due to access and assessment challenges, when it should be addressed at the same time as the overburden impacts. Many transition zone sites are typically under-characterized or overlooked for injection operations due to the paucity of data available to model the transport and storative regime in the subsurface in partially or fully weathered bedrock. Considerations and planning during the characterization phase will work towards the intent to inject specific reactants utilizing high-capacity pumps, with deference to the necessary overburden and/or competent bedrock remediation efforts. Techniques to overcome these challenges will be discussed in detail.

A comparative evolution of recent improvements to techniques and approaches to characterization and injection in overburden, transition zone/saprolite, and consolidated lithologies will be discussed. Several case studies from the “Passaic Gap” setting will be briefly summarized, including 1) a performance-based contract site with serious transition zone impacts, including dense non-aqueous phase liquid (DNAPL), and 2) a weathered-competent bedrock injection project that met remediation goals six months post injection.

Bill Brab, PG, CPG, AST Environmental, Inc.
Bill Brab, PG, CPG is a Senior Remediation Geologist for AST Environmental, Inc. in Midway, Kentucky with 25 years of experience in environmental geology and site remediation. Bill is an expert in fractured bedrock characterization and is a recognized authority in Kentucky and Tennessee for his investigation and remediation of karst geology. He moved from environmental consulting to AST in 2011 and quickly assisted in distinguishing AST as the leading in-situ remediation technology company in the marketplace- a unique injection approach involving high resolution sampling, detailed conceptual site models, intricate and combined-remedy designs, and injection techniques.

Previously, Bill worked for a local Environmental Consulting firm in Lexington, Kentucky performing Underground Storage Tank (UST) compliance services- soil and groundwater assessment, evaluation of corrective action technologies, bulk soil and UST removals, in-situ remedial injections, and remedial systems operation and maintenance. He has provided technical oversight and on-site supervision of emergency response, free product recovery, initial abatement, and Phase I/II Environmental Site Assessments, plus QA/QC for regulatory compliance and representation of clients and programs encompassing private industry, local, state, and federal agencies in several states.

Bill graduated from the University of Kentucky in 2001 with a Bachelor of Science in Geological and Earth Sciences and holds Professional Geologist licenses in Kentucky, Tennessee, North Carolina, and Alabama, and is a Certified Professional Geologist. He currently oversees and mentors junior geologists for advancing career development at AST, he is a Kentucky Governor appointed Executive Board Member for the Kentucky Board of Registration for Professional Geologists and serves as the Treasurer for the Kentucky Section of The American Institute of Professional Geologists.

Presented by Douglas B. Zabonick, Patriot Engineering and Environmental & Dan Wendt, City of West Carrollton

A land locked municipality purchased 27-A for $1.00 for future development. What could go wrong? The site was a single industrial user wastewater treatment plant. Initial Environmental investigations discovered widespread soil impact with PCB’s. The city and Patriot secured a Brownfield Assessment Grant from ODON. A detailed assessment was complete incorporating both Federal TSCA regulations and the Ohio VAP. Based on the investigation the property is broken into 3 parts. The city and Patriot subsequently applied for and awarded an ODOD Remediation Grant for 2 of the 3 tracks. Site Demolition, Remediation, and Risk Analysis are currently underway.

Dan Wendt, City of West Carrollton
Dan Wendt, West Carrollton’s Assistant City Manager, leads economic development, public infrastructure, strategic redevelopment, and organizational initiatives that position communities for long-term growth. He is helping lead the City’s $150 million River District Redevelopment, transforming former industrial properties through strategic public investment, utility infrastructure, environmental remediation, and public-private partnerships to catalyze private investment and job creation. A recognized leader in local government, Dan is a past president of the Ohio City/County Management Association, Returned Peace Corps Volunteer, and a Leadership Ohio alumnus. His collaborative approach to infrastructure, redevelopment, and economic competitiveness has earned statewide recognition for advancing innovative, community-focused solutions.

Presented by Richard H. Christensen, Jr., LPG, PhD, BCA Environmental Consultants

Background/Objectives. Historical operations at a manufacturing facility resulted in the release of trichloroethene (TCE) to groundwater. An agency approved Risk Management Plan (RMP) was developed proposing contaminant containment by installation of a groundwater Permeable Reactive Barrier (PRB) utilizing activated carbon impregnated with metallic iron. The RMP required an evaluation of the efficacy and life expectancy of the PRB 10-years after installation.

Approaches/Activities. Prior to the installation of the PRB, a Remedial Design Characterization (RDC) was conducted to determine the total mass within the footprint of the proposed PRB, and to estimate the total dissolved phase VOC mass that would pass through the PRB over a 10 year lifespan. Groundwater performance monitoring has been conducted semi-annually for two years, annually for three years, and most recently at the 10 year mark. The groundwater evaluation performance monitoring is being conducted to determine the efficacy of the PRB with respect to the abiotic treatment and containment of the chlorinated VOCs. The determination of life expectancy of the PRB is being determined through the utilization of Passive Flux Meters (PSFs). The PSFs have been installed upgradient of the PRB, and are left in place long term, to confirm the upgradient mass loading rates estimated during the RDC. With the known mass of reagent loading injected into the PRB, the remaining mass of reagent with the PRB can be determined.

Results/Lessons Learned. Ten years of groundwater performance monitoring has documented the successful treatment of chlorinated VOCs by the PRB. The efficacy of the PRB over the current 10-yr life span of the PRB has been confirmed. The life expectancy evaluation of the PRB is currently ongoing and results will be made available upon completion.

Presented by Brianna Schroeder, Janzen Schroeder Agricultural Law LLC

This presentation will address regulatory and statutory changes at the state and federal level which impact the ways in which biosolids can be stored, transported, and land applied. States have taken a variety of positions, from outright bans to required testing, all designed to address the threat of PFAS. Recent cases from Texas, Massachusetts, and other state and federal courts have also shed light on how courts will address liability for contamination allegedly caused by biosolids. Attendees will have a high-level understanding of the legal landscape surrounding biosolids.

Brianna Schroeder, Janzen Schroeder Agricultural Law LLC
Speaking the language of agriculture in the context of law has been Brianna J. Schroeder’s calling for her entire career. As a partner at Janzen Schroeder Ag Law LLC, Brianna brings a variety of skills to the complexities of today’s agriculture. She grew up on a farm in Northeast Indiana, so her insight is grounded in experience. Brianna works with the ag industry as she provides expertise such as litigating complicated environmental matters, drafting contracts for agribusinesses, negotiating renewable energy contracts, and helping livestock farms navigate regulatory compliance. She is licensed in Indiana and Illinois.

Presented by Adam Gushgari, PhD, PE, Eurofins Environment Testing USA

Microplastics (typically defined as particles <5mm, spanning fragments, fibers, and films across polymer types) have been documented across drinking water, groundwater, soil, and atmospheric deposition, with growing evidence of translocation into human blood, lung tissue, and placenta. EPA’s inclusion of microplastics on CCL 6 marks a shift from academic interest to a regulatory trajectory with direct implications for site characterization, permitting, and disclosure.

This session provides a technical foundation in microplastics science for an environmental consulting and regulatory audience. Topics include particle classification and polymer identification, environmental sources and transport pathways, current analytical methods (FTIR, Raman spectroscopy, pyrolysis-GC/MS) and their respective strengths and limitations, and a candid look at where methodological standardization in the field remains unresolved. The toxicological and epidemiological literature will be presented as it stands: an active, contested area of research, not a settled narrative.

Attendees will leave with the technical vocabulary and conceptual framework to evaluate microplastics data critically, whether reviewing a lab report, scoping an investigation, or fielding a client’s question. For the firms represented, that capability shortens the learning curve on an analyte moving toward regulatory relevance, positioning teams to engage clients from a position of technical credibility rather than catch-up.

Adam Gushgari, PhD, PE, Eurofins Environment Testing USA
Adam Gushgari, PhD, PE, is Senior Director of Emerging Contaminants at Eurofins Environment Testing America, where he leads scientific strategy across PFAS, microplastics, endocrine-disrupting compounds, disinfection byproducts, and wastewater-based epidemiology. He holds a PhD from Arizona State University’s Biodesign Center for Environmental Health Engineering and is a licensed Professional Engineer. Dr. Gushgari co-founded AquaVitas LLC and played a foundational role in building the CDC’s National Wastewater Surveillance System. He speaks regularly at industry conferences and webinars on emerging contaminants and analytical method development.

Presented by Christopher Zahasky, PhD, University of Wisconsin-Madison

Per- and polyfluoroalkyl substances (PFAS) from biosolids and aqueous film-forming foam (AFFF) source zones pose a long-term threat to groundwater. Organizations responsible for these sites need defensible forecasts of when, where, and how much PFAS will migrate into groundwater systems. These forecasts are hard to make because PFAS adsorb to both soil grains and air-water interfaces, and heterogeneous adsorption and preferential flow create complex behavior in real geologic settings. This presentation demonstrates a modeling workflow that couples two vadose zone approaches, which simulate PFAS leaching from source zones to the water table, with an ensemble of MODFLOW groundwater flow and transport models that forecast plume extent through time. Results indicate PFAS will continue to leach into groundwater at concentrations above health standards for several decades. This suggests source zones may require long-term management rather than a one-time response. Instead of a single deterministic prediction, the framework maps the probability of exceeding a contamination threshold across space and time, which makes geologic uncertainty explicit. Attendees will see how probabilistic forecasts like these can guide monitoring network design, prioritize remediation and treatment investments, and support clear risk communication with regulators, communities, and other stakeholders.

Christopher Zahasky, PhD, University of Wisconsin-Madison
Dr. Christopher Zahasky is an associate professor at the University of Wisconsin-Madison in the Department of Geoscience. Prior to coming to the University of Wisconsin-Madison, he was a postdoctoral scholar at Imperial College London and Stanford University. He completed his PhD and MSc degrees in Energy Resources Engineering at Stanford University. He completed his Bachelor of Science degree in Geology at the University of Minnesota. His research interests are focused on understanding the fundamental physics and mechanisms of fluid, colloid, and solute transport in geologic systems across length and time scales with applications to anthropogenic and geogenic groundwater contaminants.

Presented by George (Bud) Ivey, B.SC.,CES, CESA, P.Chem., EP, Ivey International Inc.



George (Bud) Ivey, B.SC.,CES, CESA, P.Chem., EP, Ivey International Inc.
George is a distinguished environmental professional with over 35 years of international experience in remediation. He has contributed to more than 3,500 remediation projects across upwards of 70 countries. George holds in excess of 30 international patents and trademarks and has received 16 global environmental awards. He has academic experience includes Synthetic Organic Chemistry, Geological Engineering, and a Master’s in Project Management.

Presented by Shaun Scholer, State of Indiana, GIS Office and Daniel Council, Indiana Geographic Information Office

The Indiana Geographic Information Office continues to enhance statewide geospatial data through core imagery, elevation, and framework data programs that support government operations and public access. Current initiatives focus on modernizing data delivery and expanding cloud‑based resources, including optimizing all imagery and elevation products in our AWS Open Data bucket and our ongoing ATLAS grant work aimed at expanding geographic research and education.

New advancements include:
Imagery and elevation program updates
Integrating STAC (SpatialTemporal Asset Catalog) into our imagery and lidar products
Recently added 6-inch leaf-on imagery from 2025

In addition to these initiatives, our office continues to expand other major program offerings. The Data Harvest program collects framework data from all 92 counties and aggregates them into high-quality, publicly accessible, statewide datasets. The IndianaMap platform also remains a foundational resource, offering a centralized hub for authoritative statewide geospatial data. IndianaMap supports everyone from state agencies and researchers to local GIS staff and the public, ensuring that critical information such as parcels, address points, administrative boundaries, and environmental layers remains freely accessible and regularly updated.

Shaun Scholer, State of Indiana, GIS Office
Shaun Scholer is GIS Specialist for the Geographic Information Office of Indiana leading Indiana’s imagery and elevation programs. He received his bachelor’s degree in aviation from Indiana State University (ISU) in 1993, and earned a master’s degree in Geography with an emphasis on GIS and Remote sensing from ISU in 1995.

Shaun began his GIS career facilitating planimetric conversion projects at GRW in Lexington, KY., and was a project leader at The Polis Center (IUPUI) starting in the late 90s. He led the GIS Interlocal within Wayne County Government and the City of Richmond for 18 years, beginning in 2002. During his career in Wayne County, he worked with each partner organization to identify needs, determine effective GIS policy-level decisions, and implement practical, effective GIS initiatives. Shaun has served in multiple leadership roles within Indiana Geographic Information Council (IGIC).

Daniel Council, Indiana Geographic Information Office
Dan serves as a Geographic Information Outreach Coordinator covering Northern Indiana. He graduated from Ball State University with a Bachelor of Science in Geography, with concentrations in GIS and Human Geography. After graduating from Ball State and interning with Porter County GIS, Dan moved to Toronto, Canada, to pursue a Master in Spatial Analysis from Toronto Metropolitan University, where he focused on business applications of GIS and economic geography.

After spending 3 years in Canada studying and working at Environics Analytics, a company known for geodemographic analysis and segmentation for marketing purposes, Dan decided to move back to his hometown to be closer to family.

Presented by Alyssa Henthorn, IDEM

This presentation will walk through the history of VFC, how it current interacts with the public, issues with the current set up and where VFC maybe in the future.

Alyssa Henthorn, IDEM
3 years at IDEM as a TMDL writer. Holds a Bachelors in Environmental Science & Sustainability and a Masters in Environmental Policy & Recreational Management.

Presented by Elliott Andelman, Directional Technologies, Inc.

Remediation requires significant capital investment and long-term operational commitment. While Horizontal Directional Drilling (HDD) offers a proven, less intrusive, and highly effective method for installing long, screened intervals for in-situ remediation (e.g., injection, extraction, or ISCO), the upfront costs and uncertainty regarding subsurface heterogeneity can pose a significant barrier for site owners and regulators. Our primary objective is to demonstrate the critical role of well-designed HDD pilot studies as a risk-reduction tool and economic gatekeeper to reliably predict the technical performance and costs of a full-scale horizontal well network. By establishing clear pilot data, stakeholders can confidently transition to full-scale implementation or pivot to alternative strategies, thus avoiding costly project failures and accelerating site closure.

Elliott Andelman, Directional Technologies, Inc.
Mr. Andelman is an Environmental Scientist and Licensed Professional Geologist who works for Directional Technologies, Inc. (DTI), a company that specializes in the design, drilling, and installation of horizontal remediation wells. He collaborates with environmental consultants to assess how horizontal wells may benefit their more challenging remediation projects.

Presented by John Incorvaia, GPRS

This presentation explores how infrastructure mapping can help environmental professionals prevent utility strikes and improve regulatory compliance. This can protect personnel, reduce project delays and costs, and enable environmental consultants, engineers, and facility owners to confidently plan, investigate, and remediate sites. Attendees will learn how accurate subsurface intelligence supports environmental due diligence activities, including soil borings, groundwater sampling, soil vapor assessments, underground storage tank (UST) investigations, and remediation projects.

John Incorvaia, GPRS
John Incorvaia is the Market Segment Leader for Environmental at GPRS, where he helps environmental professionals reduce risk and make confident decisions through advanced infrastructure visualization and subsurface damage prevention solutions. With more than eight years of experience in site due diligence, John is passionate about building relationships, solving complex challenges, and helping clients deliver successful projects. He also leads strategic growth initiatives that expand GPRS’s impact across the environmental industry