Dr. Higgins is a Managing Scientist and Hydrogeologist in the Environmental & Earth Sciences practice with over 13 years of experience in environmental site investigation, fractured bedrock hydrogeology, and litigation support. His expertise in conceptual site model (CSM) development, contaminant fate and transport analysis, and technical communication helps equip stakeholders with the knowledge and understanding necessary for navigating complex environmental challenges. He has led remedial investigations for PFAS and VOC contamination, and managed expert consulting teams in support of multi-year litigation matters for stakeholders across various sectors including chemical and general manufacturing, aerospace, energy, defense, government, agriculture, and drinking water supply. With a Ph.D. in Geological Sciences and a strong background in geographic information systems (GIS), data analysis, and technical communication, he is committed to advancing industry standards and delivering clear, actionable results.