Mr. Vest is a geologist with 27 years of experience conducting site characterization and remediation for federal (USACE, AEC, ANG, USCG, and DOE), state, and commercial clients, with an emphasis on fractured rock and karst hydrogeologic settings. Since 2015, his projects have focused on PFAS investigations, including CERCLA PAs, SIs, and RIs.
Applicability of Diverse Investigative Techniques for PFAS Remedial Investigations and Conceptual Site Model Development
The objectives of this presentation are to illustrate how the unique concerns related to PFAS guide development of investigation strategies, discuss successful investigative techniques, describe how diverse datasets can be assimilated into a Conceptual Site Model (CSM), and present innovative options for future investigations. The presentation uses a series of case studies (completed, on-going, and planned) to illustrate the broad range of investigative techniques and their applicability or non-compatibility with PFAS investigations. Through comparison of the three projects we will highlight the evolution of investigative methods and present key considerations for design and execution of PFAS investigation. Lastly the presentation will discuss methods to assimilate the vast dataset into comprehensive CSMs to clearly and concisely convey the conceptual understanding of the site and contaminant distribution