February 27, 2024 | 1:00 pm Eastern
Careful planning and several precautions need to be taken when sampling for PFAS. This presentation will delve into some of the common and not so common sampling & analytical challenges.
Topics Will Include:
- Overview of available analytical methods for target PFAS compounds including which one to choose
- Comparing old analytical methods and datasets to data generated from new analytical methods
- Sampling & analytical challenges associated with wastewater and biosolids, especially under the current National Pollutant Discharge Elimination System (NPDES)/ State Pollutant Discharge Elimination System (SPDES) guidance
- Recommendations for specific procedures when installing monitoring wells and sampling groundwater in order to collect representative samples
- How to deal with surface water, wastewater and groundwater with elevated turbidity or total suspended solids and how these parameters can affect the ultimate PFAS result
- Scoping a PFAS environmental investigation and what you need to plan for
- Lessons learned with false positive results for perfluorooctane sulfonic acid (PFOS)
- Overview of specialized PFAS analyses such as total oxidizable precursor (TOP) assay, adsorbable organic fluorine (AOF) and total organic fluorine (TOF) including what are each of these measuring and when they might be useful
Speakers: Elizabeth Denly - PFAS Initiative Leader & Chemistry Director and Jeff Ramey - Principal Chemist