Resident Inspectors

Hanford

Padraic Fox
Padraic Fox

Padraic Fox has been a Resident Inspector at Hanford site since November 2014.  After joining the Board’s technical staff in September 2009 and before becoming a Resident Inspector, he was responsible for evaluating safety system designs and startup readiness activities associated with DOE defense nuclear facility design and construction projects.  His efforts were primarily focused on the Hanford Waste Treatment and Immobilization Plant, the Integrated Waste Treatment Unit at the Idaho National Laboratory, and both the Radioactive Liquid Waste Treatment Facility Upgrade Project and the Transuranic Waste Facility at Los Alamos National Laboratory.

Prior to joining the Board’s staff, Mr. Fox spent 10 years working as a consulting engineer and project manager. He has 23 years of active duty service in the United States Navy, serving on nuclear powered surface ships and as an engineering duty officer.  

Mr. Fox has a Master of Science Degree in Mechanical Engineering from the Naval Post Graduate School, and a Bachelor of Science Degree in General Engineering from the United States Naval Academy.

Los Alamos National Laboratory

David Gutowski
David Gutowski

Mr. David Gutowski is one of the Board’s Resident Inspector at the Department of Energy's Hanford Site near Richland, Washington. Mr. Gutowski joined the Board's technical staff in June 2003 and reported to Hanford in November 2012.  Before being assigned to Hanford, he was stationed at DNFSB Headquarters.  His most recent headquarters position was as the Board's Cognizant Engineer for the Savannah River Site. Prior to this, he was Cognizant Engineer for the Y-12 National Security Complex. He has also held responsibility for staff activities related to nuclear materials stabilization, high-level waste management, and chemical hazards. Mr. Gutowski has a Master of Science Degree in Nuclear Engineering from the University of California, Berkeley and a Bachelor of Science Degree in Chemical Engineering from Carnegie Mellon University. He is a licensed Professional Engineer in Maryland.

Jonathan Plaue
Jonathan Plaue

Jonathan Plaue has more than 15 years of experience in overseeing safety at the Department of Energy’s defense nuclear facilities.  Dr. Plaue has been a member of the Board’s technical staff since 2001 and was assigned as a Resident Inspector at Los Alamos National Laboratory (LANL) in September 2013.  Previously, he served as a Resident Inspector at Lawrence Livermore National Laboratory (LLNL) in California.  Prior to his assignment at LLNL, Jonathan served as the technical staff lead for safety oversight at LANL.  His earlier assignments at the Board included technical reviews and safety analyses related to nuclear chemical processing, high-level waste treatment, and nuclear materials processing and storage.  

Dr. Plaue was the 2009 recipient of the Board’s prestigious John W. Crawford, Jr. Award for Staff Excellence.  This honor is bestowed annually in recognition of the staff member who is considered to have provided the most valuable individual contribution to the work of the Board during the previous year either by a single action, or through a continuously high level of effort.

Dr. Plaue holds a Bachelor of Science degree in Chemical Engineering and a Master of Science in Nuclear Engineering from the Massachusetts Institute of Technology and a Doctor of Philosophy in Radiochemistry from the University of Nevada, Las Vegas.

Pantex

Zachery Beauvais
Zachery Beauvais

Mr. Zachery Beauvais joined the Board’s technical staff in July 2010 and has served as the Board’s Resident Inspector for the Pantex Plant since August 2015.  During his tenure with the staff, he has conducted technical safety reviews in the areas of nuclear criticality safety and safety basis, has evaluated the effectiveness of nuclear explosive safety studies at Pantex, and has served as the Board’s Cognizant Engineer for Sandia National Laboratories.  Mr. Beauvais has conducted research at Los Alamos National Laboratory in the area of nuclear nonproliferation and nuclear materials attractiveness.

Mr. Beauvais was the 2016 recipient of the Board’s prestigious John W. Crawford, Jr., Award for Staff Excellence.  This honor is bestowed annually in recognition of the staff member who is considered to have provided the most valuable individual contribution to the work of the Board during the previous year either by a single action, or through a continuously high level of effort.

Mr. Beauvais holds a Bachelor of Science Degree in Nuclear Engineering and Radiological Sciences from the University of Michigan, Ann Arbor, and a Master of Engineering Degree in Nuclear Engineering from the University of California, Berkeley.

Ramsey Arnold
Ramsey Arnold

Since April 2016, Mr. Ramsey Arnold has served as Resident Inspector at the Department of Energy’s (DOE) Pantex Plant (Pantex) near Amarillo, TX. As a Resident Inspector, Mr. Arnold advises the Board on the overall safety conditions of defense nuclear facilities at Pantex, and will participate in technical reviews conducted by the Board and its staff related to the design, construction, operation, and decommissioning of defense nuclear facilities. He also acts as the Board’s liaison with Department of Energy and contractor management and staff, state and local agencies, the public, and industry officials.

Mr. Arnold joined the Board’s technical staff in June 2009. During his tenure with the staff, he has conducted technical safety reviews in the areas of safety basis and quality assurance, has assessed the effectiveness of nuclear explosive evaluations at Pantex, and has served as the Board’s Cognizant Engineer for Pantex from 2013-2016.

Mr. Arnold also worked at Westinghouse Electric Company focusing on plant design, safety analysis, and licensing analysis of the Westinghouse Small Modular Reactor. Mr. Arnold holds a Bachelor of Science Degree in Chemical Engineering from Carnegie Mellon University, a Master of Science Degree in Nuclear Science and Engineering from Massachusetts Institute of Technology, and a Professional Engineering License in Nuclear Engineering.

Savannah River Site

Mark T. Sautman
Mark T. Sautman

Mark T. Sautman has been the Defense Nuclear Facilities Safety Board’s Resident Inspector at the Savannah River Site in Aiken, SC since 2005.  Prior to this appointment, he served as the Board’s Resident Inspector at the Hanford site in Richland, WA between 1999 and 2005 and at the Rocky Flats Environmental Technology Site in Golden, CO between 1995 and 1999.  Mr. Sautman began his career with the Board as a member of the Headquarters Technical staff in 1994.  Mr. Sautman is a two-time winner of the Board’s John W. Crawford, Jr Award for Staff Excellence.

Mr. Sautman earned a B.S. in nuclear engineering from the Missouri University of Science and Technology (formerly University of Missouri-Rolla) and Masters of Science degrees in both nuclear engineering and civil and environmental engineering from the Massachusetts Institute of Technology.

Zachary McCabe
Zachary McCabe

Mr. McCabe joined the Board’s technical staff in June 2011.  During tenure with the staff, he has conducted technical safety reviews in the areas of structural and seismic engineering, the safety bases for defense nuclear facilities, and work planning and control.  Mr. McCabe has also conducted reviews of Critical Decision milestones of designs for new defense nuclear facilities and major modifications to existing facilities.  Since November 2015, Mr. McCabe has been one of the DNFSB’s Resident Inspectors at the Savannah River Site.  As a Resident Inspector, Mr. McCabe advises the Board on the overall safety conditions of defense nuclear facilities at Savannah River, and participates in technical reviews conducted by the Board and its staff related to the design, construction, operation, and decommissioning of defense nuclear facilities.  He also acts as the Board’s liaison with DOE and contractor management at the Savannah River Site, state and local agencies, the public, and industry officials.

Mr. McCabe has a Master of Science Degree in Civil Engineering from the Georgia Institute of Technology and a Bachelor of Science Degree in Civil Engineering from Carnegie Mellon University.

Y-12 National Security Complex / Oak Ridge National Laboratory

Vacant

Vacant