WST PFAS Webinar Series

New Techniques to Evaluate PFAS Source Evaluation in Vadose Zones

Presented by Dr. Grant Carey (Porewater Solutions)

 

Date: October 21, 2025
Time: 01:00 PM EST
Platform: Online | Zoom Meetings
Certificate of Attendance

Continuing Education Credits: Certificates of attendance will be provided to professionals attending the live one-hour webinar.

Important: Participants who attend the live session are eligible to receive a certificate of attendance. Please note that acceptance of this certificate for continuing education or professional development purposes is subject to the specific requirements of each organization or regulatory body. Water Services and Technologies cannot guarantee its acceptance. Certificates will not be issued for those who only view the webinar recording.

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Overview

Characterization of PFAS sources in vadose zones requires analysis of soil concentrations in plan view and cross-sections, as well as potential lysimeter results for evaluating PFAS mass discharge to underlying aquifers. This webinar presents an AFFF-impacted site case study which shows how radial diagrams and stacked bar maps provide important tools for characterizing PFAS vadose zone sources, including:

  • Review of PFAS transport mechanisms in vadose zones, and typical soil and lysimeter studies for characterizing shallow PFAS source zones
  • Case study demonstration of how specialized radial diagram and stacked bar maps may be used to evaluate relative PFAS depths of impact and mass discharge rates in shallow and deep portions of the vadose zone
  • Benefits of using lysimeters to characterize the influence of a vadose zone source to an underlying aquifer

Approaches for using Visual PFASTM to evaluate soil samples in plan view or cross-section, as well as lysimeter monitoring results, are illustrated in a hands-on demonstration with an example site.

Benefits of Attending

Learn how you can employ Visual PFASTM to evaluate soil and lysimeter monitoring results to improve your characterization of PFAS vadose zone sources and potential impacts.

Who Should Attend

Environmental consultants, regulators, site managers, military personnel, and academics.

Presented by:

GrantCarey

Grant Carey, Ph.D.

Dr. Grant Carey is President of Porewater Solutions with more than 30 years of experience specializing in the characterization, modeling, and remediation of many impacted sites across North America. Grant also specializes in the development of innovative modeling and visualization tools for conducting PFAS forensic assessments and for evaluating long-term remediation strategies. Grant is currently involved with five SERDP-ESTCP projects where his main research focus is on PFAS transport and remediation. Grant is also an Adjunct Research Professor at Carleton University in Ottawa, Ontario.

Water Services and Technologies, 2025