Caitlin Bell, PE is based out of Seattle, Washington and is a Technical Expert and 1,4-Dioxane Lead for Arcadis North America. She is a chemical and environmental engineer with more than a decade of experience in environmental remediation and compliance. Ms. Bell focuses on treatment of soil and groundwater using ex situ and in situ techniques. Specifically, she focuses on in situ bioremediation applications for a variety of chemicals of concern, including emerging contaminants. She serves as a technical resource on topics such as molecular biology tools, bioaugmentation, and compound specific isotope analysis. Ms. Bell was a member of the ITRC Environmental Molecular Diagnostics team and is the lead author of the 2019 Emerging Contaminants Handbook.