United States Nuclear Regulatory Commission - Protecting People and the Environment

Thomas Nicholson

Thomas Nicholson is the Senior Technical Advisor for Radionuclide Transport in the Environment, Division of Risk Analysis, Office of Nuclear Regulatory Research (RES), U.S. Nuclear Regulatory Commission (NRC).  He has worked at the NRC for 42 years, primarily in RES.  His principal responsibility is to provide technical advice to NRC senior management concerning radionuclide migration in the subsurface at NRC-licensed facilities.  His work focuses on research in radionuclide transport at nuclear facilities primarily due to abnormal, accidental releases to the subsurface.  He has formulated and directed numerous research studies as a senior project manager involving mitigative techniques for ground-water contamination associated with severe nuclear accidents; radionuclide transport in fractured rock; and integration of subsurface monitoring and modeling strategies.  He has provided consulting services to the NRC licensing staff and NRC regional inspectors dealing with radionuclide releases and environmental assessments.  He has developed training courses and lectured on groundwater monitoring and modeling issues to the NRC licensing staff and regional inspectors.  He co-edited the American Geophysical Union's (AGU) Special Publication 69 on Groundwater Vulnerability: Chernobyl Nuclear Disaster with Dr. Boris Faybishenko, Lawrence Berkeley National Laboratory.  He holds a B.S. with distinction in geological sciences from Pennsylvania State University and a M.S. in hydrogeology from Stanford University.  At Stanford, he was a teaching assistant and student of the late Professor Irwin Remson in the hydrogeology program. In 1989, he received the Meritorious Service Award for his scientific excellence.  He is a registered Professional Geologist in Indiana and a certified Professional Hydrogeologist with the American Institute of Hydrology. He is a member of the AGU, Geological Society of America, International Association of Hydrological Sciences, the International Hydrogeologic Society, and the National Ground Water Association.  He serves on the Steering Committee of the Federal Remediation Technologies Roundtable.

Page Last Reviewed/Updated Wednesday, July 17, 2019