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PFAS: Sample Collection, State of the Science, Part 2

PFAS: Sample Collection, State of the Science, Part 2

Tuesday, February 23, 2021 - 1:30 P.M. EST 

Participate in ALL 6 PFAS Webinars:

PFAS Basics, Part 1
PFAS: Sample Collection, State of the Science, Part 2
PFAS: Navigating Analytical Method Options, Part 3
PFAS: Advanced Discussion of Data Defensibility and DoD QSM, Part 4 
PFAS: Forensic Tools, TOF, TOP Assay and Non-Target Analysis, Part 5
PFAS in Source and Ambient Air, Part 6

About This Webinar:

Many sites have been required to add the analysis of Per-and Polyfluoroalkyl Substances (PFAS) to their ground water sampling plans. Military bases, airports, landfills and manufacturing facilities are sites where PFAS contamination may be present due to the use of PFAS in activities such as fire suppression or plastic manufacturing. Collecting samples for PFAS is very different from sampling for fuels, solvents, and other chemical contaminants, as potential sources of PFAS are nearly everywhere - in waterproof clothing and field gear, personal care products, and sampling equipment. But, is there really a risk from all of these sources? Do we need to eliminate all of these items to avoid sample contamination? And what about fluoropolymers like Teflon that have been used in sampling equipment for more than three decades? Can we use these systems to collect samples for PFAS analysis or do we need new equipment that is entirely free of all fluoropolymers?

Currently there are no EPA approved methods for the collection and analysis of PFAS in matrices other than finished drinking water. For all other matrices, a user-defined method and protocols must be used. As there is no standard method for sample collection, handling, or quality control measures, specific attention must be paid to the protocols employed by the laboratory and the field sampling team.

In this webinar, David Kaminski with QED Environmental Systems will explore the sources of PFAS sample contamination and dispel some of the myths and speculation surrounding the issue. Taryn McKnight with Eurofins Environment Testing America (EETA) will illuminate the multitude of parameters and best practices to adopt when employing a user defined method.

Topics the Presentation will Cover:

  • A review of published guidance
  • A review of published studies evaluating sources of PFAS
  • Sampling system materials - what works, what doesn't?
  • Avoiding obvious sources of contamination
  • PFAS free DI water and sample containers
  • Shipping considerations for PFAS
  • Sample preservation and filtration
  • Quality control samples

A question and answer session will immediately follow the presentation. 


*This webinar has ended.

Tuesday, February 23, 2021 - 1:30 P.M. EST


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PDH Credit:

All webinar attendees will receive a certificate of attendance with PDH Credit issued by EETA. Certificates will be emailed Friday following the presentation. Contact your state to determine whether these credits meet the guidelines set forth by your state's board.

The Presenters:

Taryn McKnight

PFAS Practice Leader


Eurofins Environment Testing America

David Kaminski

Senior Vice President


QED Environmental Systems

To view a recorded version of this webinar, please contact