Todd Halihan, Ph.D., P.Gp.
Oklahoma State University
Dr. Halihan is a Professor and the Sun Chair of Hydrogeology at Oklahoma State University, and Chief Technical Officer for Aestus, LLC.
Dr. Halihan’s professional interests center in subsurface characterization and sustainable water supply. He has worked on over 250 different research and commercial sites in the United States and internationally. He also spends a significant amount of time in his home state of Oklahoma evaluating the Arbuckle Group of carbonates and associated springs.
Dr. Halihan was the National Ground Water Association’s 2018 McEllhiney Lecturer. He is also a professional driller in the state of Oklahoma and a PADI divemaster.
Electrical Hydrogeology of Hydrocarbon Degradation