Conformation of the Sources of Per and Polyfluoroalkyl Substances (PFAS) Detected in Municipal Drinking Water Supply Wells Using Several Forensic Lines of Evidence
Bryan Massa, LSP, Principal and Regional Manager, HRP Associates, Inc.
Soil and groundwater samples were collected at a municipal airport to determine if it was the source of PFAS impacts detected at three municipal drinking water wells. During the investigation, several non-airport related PFAS groundwater plumes were identified, and environmental forensic techniques were utilized to determine if the impacts at the municipal wells were related to the PFAS release identified at the airport. The forensic lines of evidence included the presence or absence of individual PFAS compounds, differences in absolute concentrations, relative ratios and patterns, geospatial analysis, and hydrological assessment. Additionally, to confirm the source identification based on the conventional PFAS data, several groundwater samples were analyzed by a special high-resolution method that could potentially identify nearly 500 PFAS compounds.
Bryan Massa is a Licensed Site Professional (LSP) with over 23 years of experience in the environmental field. Bryan has worked on a variety of environmental projects throughout the United States and Mexico. His experience has included the development of environmental site assessments, complex analytical data review, remediation design and oversight, risk assessments, emergency response to releases of oil and/or hazardous materials, soil gas and indoor air assessment, due diligence investigations, forensic evaluation and cost allocation. His portfolio includes a number of interdisciplinary projects that combine remediation efforts with civil site design, stream restoration, and adaptive reuse.
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