Dr. Newell is a Vice President of GSI Environmental Inc. He is a member of the American Academy of Environmental Engineers, a NGWA Certified Ground Water Professional, and an Adjunct Professor at Rice University. He has co-authored three EPA publications, five environmental decision support software systems, numerous technical articles, and two books: Natural Attenuation of Fuels and Chlorinated Solvents and Ground Water Contamination: Transport and Remediation.

His professional expertise includes site characterization, groundwater modeling, non-aqueous phase liquids, risk assessment, natural attenuation, bioremediation, non-point source studies, software development, and long-term monitoring projects. He has taught graduate level groundwater courses at both the University of Houston and Rice University.

Dr. Newell has been awarded the "Hanson Excellence of Presentation Award" by the American Association of Petroleum Geologists, the "Outstanding Presentation Award" by the American Institute of Chemical Engineers, and the "2001 Wesley W. Horner Award" by the American Society of Civil Engineers (for the paper, "Modeling Natural Attenuation of Fuels with BIOPLUME III"). In 2008 he received the "Outstanding Engineering Alumni Award" from Rice University.