Allan Horneman, PhD, is a principal geologist with Arcadis. He has 11+ years of consulting experience in hydrogeology, geochemistry, contaminated site characterization, and remediation, and he is part of Arcadis’ global technical knowledge and innovation (TKI) network that drives novel solutions for complex sites. He is integrated in Arcadis’ global emerging contaminant group and work in close collaboration with Arcadis’ national and international PFAS experts. His work has included PFAS source zone characterization and bench scale treatability testing. He is currently leading PFAS investigation and conceptual site model development for fire training areas in Scandinavia and he is engaged in multiple PFAS related project throughout North America.