Will Fair

Rebuttal of Estimated $1.7 Billion Remediation Costs at Historical RCRA Megasite

Evaluated Plaintiff’s Expert Report, which estimated cost of groundwater at $1.7 billion. Identified errors in Plaintiff’s Expert Report and recalculated the extent and mass of contaminant sources; demonstrated that Plaintiff’s claim lacked credibility. Detailed: Engaged by the defendant’s attorneys, this forensic hydrogeology analysis critically evaluated the Plaintiff’s claim that groundwater remediation costs at […]

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“Introduction to Groundwater Contamination by PFAS at Airports and Military Bases”

Communication and Education, Fate and Transport, PFAS, Visualization / Will Fair

The engaging and short video below describes the composition, use, and potential effects of PFAS-containing firefighting foam known as Aqueous Film Forming Foam (AFFF). It includes pictures and animations that illustrate the evolution of a groundwater plume from a fire training area, the potential impact of the plume on groundwater and municipal water supply, and

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Class Action Analysis: PFAS Impacts from Metal Plating Facility

Expert Witness and Legal Support, Forensic Hydrogeology, PFAS, Site Assessment and Characterization / Will Fair

Evaluated historical reports and soil/groundwater data related to PFAS contamination associated with mist suppressant use at a metal plating facility. Conducted forensic analysis of contaminant distribution, identifying co-contaminants that suggest drinking water impacts are attributable to multiple potential sources. Developed and presented a conceptual site model to clarify the extent and complexity of the contamination.

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Hydrogeologic Exploration to Benefit Farmers in Morocco

Communication and Education, Fractured Rock Hydrogeology, Non-Profit, Site Assessment and Characterization, Visualization / Will Fair

Hydrogeologic reconnaissance was performed at 4 sites in the High Atlas Mountains and Middle Atlas Mountains in Morocco with the purpose of identifying locations for accessing groundwater for irrigation. The work was performed in collaboration with the High Atlas Foundation. This January 31, 2024, webinar presents the methodologies and findings of hydrogeologic reconnaissance

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Estimated Allocation Share for Contaminated Sediment

Expert Witness and Legal Support, Fate and Transport, Sediment and Surface Water / Will Fair

Prepared a Position Brief that provides estimates of the potential contribution of contaminants of concern (COCs) to river sediment from a former manufacturing site. Calculations considered evaluation of historical data to estimate COC mass flux due to sewerage discharges. Evaluation shows that client’s potential contribution is de minimis. Also identified mathematical error in Cost Allocator’s

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Forensic Evaluation of PFAS Contamination at Air National Guard Base

Chlorinated Solvents and DNAPL, Forensic Hydrogeology, PFAS, Site Assessment and Characterization / Will Fair

Evaluated groundwater data, including chemical signatures based on 21 PFAS compounds across shallow, intermediate, and deep aquifer zones. The analysis integrated groundwater flow directions, potential source locations, and chemical compositions from both on-site and off-site sources. Key conclusions highlighted the identification of off-site PFAS sources north of the site and attributed PFAS detections in the

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Technical Lead – DNAPL Megasite

Chlorinated Solvents and DNAPL, Fate and Transport, Forensic Hydrogeology, Modeling, Sediment and Surface Water, Site Assessment and Characterization, Unique Analytical Methods / Will Fair

Served as the Technical Lead for numerous and large site investigation and remediation projects at a 1,400+acre chemical manufacturing plant, which included extensive soil and groundwater contamination by dense non-aqueous phase liquid (DNAPL). Multiple projects, including investigation planning and analysis of site-wide data to identify sources, nature and extent, fate and transport, and risks associated

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“Occurrence and Migration of PFAS Firefighting Foam in Surface Water and Groundwater”

Communication and Education, Fate and Transport, PFAS, Visualization / Will Fair

This webinar presents some of the fundamentals of groundwater and surface water contamination due to firefighting foams that are composed of Aqueous Film Forming Foam (AFFF), which contain Per- and polyfluoroalkyl substances (PFAS). PFAS are a group of man-made chemicals that include PFOA and PFOS, and which have been referred to as “Forever Chemicals” because

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Animation of Pump and Treat Remediation

Communication and Education, Expert Witness and Legal Support, Fate and Transport, Visualization / Will Fair

This animation was created using a custom animation technique – offering teams a clear, cost-effective alternative to traditional groundwater modeling software. It can be designed to support litigation, including courtroom presentations and expert testimony, while also serving corporate remediation leads, environmental consultants, and regulators who need to communicate site conditions to the public and other

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Animation of DNAPL Contamination in a Fractured Rock Aquifer

Chlorinated Solvents and DNAPL, Communication and Education, Expert Witness and Legal Support, Fractured Rock Hydrogeology, Visualization / Will Fair

This animation illustrates some fundamentals of dense non-aqueous phase liquid (DNAPL) transport in fractured rock. A unique aspect of this video is that the animation is created using a custom animation technique without the use of complex groundwater modeling software. This cost-effective method provides a clear, intuitive way to communicate site conditions to stakeholders, making it an attractive

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