Delving into the PFAS Analytical Data

Disclaimer: This webinar is presented for informational purposes only. The views expressed do not necessarily reflect those of any of the NEWMOA member states, and the strategies and technologies discussed should not be considered an endorsement by NEWMOA or its members.

Thank you to those of you who were able to join us for a webinar on Delving into the PFAS Analytical Data. This session examined common issues associated with PFAS analytical results provided in Level 2 laboratory data packages and discussed the implications of using summarized data for decision-making without review of laboratory raw data. Drawing on examples identified through deeper Level 4 data review, the presentation highlighted data anomalies that can affect reported PFAS detections and concentrations, including issues related to isomer integration, calibration standards, confirmation ions, ion ratios, and internal standards.

This session featured a presentation from Elizabeth Denly, PFAS Initiative Leader and Chemistry Director at TRC. In this role, Liz is responsible for providing QA/QC oversight in support of a variety of environmental investigations, including risk-based soil cleanups, remediation programs, delineation, contaminant ambient air monitoring, and human health and ecological risk assessments. She currently works on many different types of PFAS investigations with a specific focus on chemistry, forensics, sampling procedures, QA/QC, and laboratory analytical methodologies, and has played a significant role in educating clients, attorneys, and regulators about PFAS.

Please use the links below to access the full webinar recording and supporting materials from the session.

Resources

• Session Recording [MP4] 
• Slide Deck [PDF]