Isaac Roll, PhD, PE, is a Senior Engineer at Geosyntec Consultants, specializing in CERCLA-style site investigations, feasibility studies, and remedy implementation since November 2015. With a robust background in civil and environmental engineering, Isaac also has experience in RCRA facility closure and water treatment system design. Prior to this role, Isaac served as a Graduate Research Associate at Arizona State University, focusing on groundwater contamination detection and hydrogeological modeling. Isaac's teaching experience spans several high schools, where instruction in physics and chemistry was provided. Isaac holds a PhD and an MSE in Civil, Environmental, and Sustainable Engineering, as well as an MEd in Curriculum and Instruction, coupled with a BSE in Bioengineering from Arizona State University.