The research in my group leverages detailed experiments and field work to gather observational data that can be used to inform vadose zone and groundwater transport models. A major emphasis of our current work is on PFAS, whose unique transport behavior under unsaturated and transient environmental conditions presents particular challenges for predicting PFAS leaching and migration in groundwater systems. Our work aims to improve mechanistic understanding of PFAS transport processes in complex geologic systems to better inform the management, mitigation, and remediation of PFAS contamination in groundwater across Wisconsin.