Haley & Aldrich, Inc.
Mr. Phillips has more than 30 years of experience providing strategic environmental consulting services including technical and regulatory direction related to the investigation, cleanup and redevelopment of contaminated properties, litigation support for cost recovery actions, and regulatory compliance services under RCRA, Superfund, and state regulations. His areas of expertise include forensic chemistry in support of contaminant source identification, data quality, and cost allocation and recovery for environmental cleanup. Expert services in litigation and settlement negotiations have included regulatory compliance, contaminant sources, future remediation costs, bankruptcy, and environmental insurance matters.
Poly and Perfluoroalkyl Substances (PFAS) Source Identification and Concentration Distribution Changes with Distance Using Radar Chart Patterns
The identification of source(s) of poly and perfluoroalkyl substances (PFAS) and their fate and transport in the groundwater will continue to be the subject of investigation particularly as regulatory standards are lowered. The intent of this presentation is to examine PFAS distribution patterns with distance from known/potential source areas and over multiple monitoring events. Radar charts of PFAS concentrations from known/potential source areas will be compared with downgradient monitoring points to assess how individual PFAS concentration distributions change with distance and time. The application of radar chart patterns provides a forensic approach that, in combination with other environmental measurements, help to distinguish PFAS source(s).