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Risk and Decision Sciences

Garill Coles

Garill Coles

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352

Biography

Mr. Coles has thirty plus years of experience in safety and risk evaluations for domestic and international nuclear reactors, critical infrastructure, and other complex systems. He was trained as a nuclear safety analyst and Shift Technical Advisor at the Department of Energy’s (DOE’s) N Reactor. He has led and participated in an array of Probabilistic Risk Assessments (PRAs) on U.S. and international nuclear reactors, and was part of a team that provided training in PRA and safety analysis to the Russian Federation for the DOE and Department of Defense. He has supported and led numerous hazards assessment, accident analyses, and Documented Safety Analyses of Hanford’s nonreactor nuclear facilities. Mr. Coles has also supported risk assessment of oil pumping stations for the Mexican government-owned company PEMEX. Mr. Coles was performed risk assessments on healthcare concerns and has chaired the local Patient Safety organization for the last thirteen years. Coles has also led research in the area of nuclear proliferation risk assessment for the DOE National Nuclear Security Administration, leveraging PNNL research in the area of techno-socio predictive analytics and helped develop a Facility Safeguard-ability Assessment for the NuScale Small Modular Reactor (SMR). Garill was a primary author of NUREG/CR-6847, Cyber Security Self-Assessment Method for U.S. Nuclear Power Plants, which employs a risk-informed approach. As a PRA expert, Garill has supported review of several Severe Accident Mitigation Alternatives Analysis submittals from U.S. nuclear power plants for Nuclear Regulatory Commission (NRC). He has also supported implementation of risk-informed performance-based strategies for licensing SMRs. He has also supported research for DOE that would integrate equipment condition monitoring into PRA. Mr. Coles has supported research on the impact of environmental factors associated with nuclear power plant manual actions in response to external flooding hazards that will support risk-informed application. Mr. Coles has led development of a modeling approach to apply PRA to the electrical power grid to support decision making associated with extreme events. Mr. Coles was the technical lead for performing a Phenomena Identification Ranking Technique assessment using expert elicitation on low power shutdown PRA. Currently, he supports the NRC as a PRA expert in reviewing risk-informed License Amendment Requests such adaption National Fire Protection Association (NFPA) 805, Technical Specification allowed outage and surveillance time extension, and risk-informed component categorization per 10 CFR 50.59: and review seismic PRA submittal per NRC’s request pursuant to 10 CFR 50.54 (f) regarding recommendations from the Fukushima Dai-ichi accident.

Research Interests

  • Probabilistic Risk Assessment
  • Nuclear Safety Analysis and Licensing
  • Programmatic Risk Assessment
  • Risk Management
  • Risk Informed Security Cyber Security Analysis
  • Security Risk Assessment
  • Uncertainty Analysis
  • Safety Analysis
  • System Analysis
  • Hazards Analysis
  • Accident Analysis
  • Reliability, Maintainability and Unavailability Studies
  • Failure Modes and Effects Analysis
  • Root Cause Analysis
  • Patient Safety

Education and Credentials

  • B.S., Mechanical Engineering, Montana State University, 1981
  • Reactor Physics Certification, UNC United Nuclear Industries, 1983
  • Reactor Shift Technical Advisor Certification, UNC United Nuclear Industries, 1986

Awards and Recognitions

  • Outstanding Performance Awards for various PNNL Environmental Technology Directorate achievements, 2002, 2003, 2006, and 2007
  • Rewards and Recognition Program awards from PNNL Facilities and Operations Directorate, 2007 and 2009
  • Distinguished contribution to the North American Electric Reliability Corporation (NERC) Critical Infrastructure Protection Committee (CIPC) Risk Assessment Working Group (RAWG), 2011
  • June 9, 2005, American Nuclear Society's Winter Meeting, Best Paper Award
  • July 13, 2005, Joint Commission on Accreditation of Healthcare Organizations (JCAHO), Honorarium

PNNL Publications

2018

  • Veeramany A., G.A. Coles, S.D. Unwin, T.B. Nguyen, and J.E. Dagle. 2018. "Trial Implementation of a Multihazard Risk Assessment Framework for High-Impact Low-Frequency Power Grid Events." IEEE Systems Journal 12, no. 4:3807-3815. PNNL-SA-124609. doi:10.1109/JSYST.2017.2737993

2017

  • Coles G.A., A.C. Dalton, K.M. Branch, R. Prasad, N.P. Kohn, and A.C. Bittner. 2017. "Framework for Evaluating the Impact of Environmental Conditions on Manual Actions." In Advances in Human Factors in Energy: Oil, Gas, Nuclear and Electric Power Industries: Proceedings of the AHFE 2016 International Conference on Human Factors in Energy: Oil, Gas, Nuclear and Electric Power Industries, July 27-31, 2016, Orlando, Florida, edited by SM Cetiner, P Fechtelkotter and M Legatt, 495, 157-169. Cham:Springer International Publishing. PNNL-SA-116565. doi:10.1007/978-3-319-41950-3_14

2016

  • Ramuhalli P., A. Veeramany, C.A. Bonebrake, W.J. Ivans, G.A. Coles, and E.H. Hirt. 2016. "Evaluation of Enhanced Risk Monitors for Use on Advanced Reactors." In 24th International Conference on Nuclear Engineering (ICONE24), June 26-30, 2016, Charlotte, North Carolina, V004T14A003; ICONE24-60040. New York, New York:ASME. PNNL-SA-115283. doi:10.1115/ICONE24-60040
  • Veeramany A., G.A. Coles, S.D. Unwin, T.B. Nguyen, and J.E. Dagle. 2016. Trial Implementation of the High-Impact, Low-Frequency Power Grid Event Risk Framework to Support Informed Decision-Making. PNNL-25667. Richland, WA: Pacific Northwest National Laboratory. Trial Implementation of the High-Impact, Low-Frequency Power Grid Event Risk Framework to Support Informed Decision-Making
  • Veeramany A., S.D. Unwin, G.A. Coles, J.E. Dagle, W. Millard, J. Yao, and C.S. Glantz, et al. 2016. "Framework for Modeling High-Impact, Low-Frequency Power Grid Events to Support Risk-Informed Decisions." International Journal of Disaster Risk Reduction 18. PNNL-SA-115402. doi:10.1016/j.ijdrr.2016.06.008

2015

  • Ramuhalli P., E.H. Hirt, A. Veeramany, C.A. Bonebrake, W.J. Ivans, G.A. Coles, and J.B. Coble, et al. 2015. Prototypic Enhanced Risk Monitor Framework and Evaluation - Advanced Reactor Technology Milestone: M3AT-15PN2301054. PNNL-24712. Richland, WA: Pacific Northwest National Laboratory. Prototypic Enhanced Risk Monitor Framework and Evaluation - Advanced Reactor Technology Milestone: M3AT-15PN2301054
  • Short S.M., G.A. Coles, K.L. Bohlander, R.F. Layton, W.J. Ivans, F.A. dePeralta, and P.P. Lowry. 2015. "IMPLEMENTING THE NFPA 805 PROCESS: Observations of a Technical Reviewer." In International Topical Meeting on Probabilistic Safety Assessment and Analysis (PSA 2015), April 26-30, 2015, Sun Valley, Idaho, Paper No. 12281. La Grange Park, Illinois:American Nuclear Society. PNNL-SA-106641.
  • Veeramany A., S.D. Unwin, G.A. Coles, J.E. Dagle, W.D. Millard, J. Yao, and C.S. Glantz, et al. 2015. Framework for Modeling High-Impact, Low-Frequency Power Grid Events to Support Risk-Informed Decisions. PNNL-24673. Richland, WA: Pacific Northwest National Laboratory. Framework for Modeling High-Impact, Low-Frequency Power Grid Events to Support Risk-Informed Decisions

2014

  • Ramuhalli P., E.H. Hirt, G.A. Coles, C.A. Bonebrake, W.J. Ivans, D.W. Wootan, and M.R. Mitchell. 2014. An Updated Methodology for Enhancing Risk Monitors with Integrated Equipment Condition Assessment. PNNL-23478 Rev. 0. Richland, WA: Pacific Northwest National Laboratory. An Updated Methodology for Enhancing Risk Monitors with Integrated Equipment Condition Assessment
  • Ramuhalli P., E.H. Hirt, G.A. Coles, R.M. Meyer, J.B. Coble, and R.T. Wood. 2014. "Controlling O&M Costs of Advanced SMRs using Prognostics and Enhanced Risk Monitoring." Nuclear Plant Journal 32, no. 1:42-44. PNNL-SA-100828.

2013

2012

  • Coles G.A., E.T. Gitau, J. Hockert, and M.D. Zentner. 2012. Trial Application of the Facility Safeguardability Assessment Process to the NuScale SMR Design. PNNL-22000. Richland, WA: Pacific Northwest National Laboratory. Trial Application of the Facility Safeguardability Assessment Process to the NuScale SMR Design
  • Garcia H., T.L. Burr, G.A. Coles, T. Edmunds, A. Garret, M. Gorensek, and L. Hamm, et al. 2012. "Integration of facility modeling capabilities for nuclear nonproliferation analysis." Progress in Nuclear Energy 54, no. 1:96-111. PNNL-SA-79351. doi:10.1016/j.pnucene.2011.07.007
  • Paulson P.R., G.A. Coles, and S.V. Shoemaker. 2012. "Making Risk Models Operational for Situational Awareness and Decision Support." In 3rd International Conference on Nuclear Power Plant Life Management (PLIM) for Long Term Operations (LTO), May 14-18 2012, Salt Lake City, Utah, 43, Paper No. IAEA-CN-194-006_Paulson. Vienna:International Atomic Energy Agency. PNNL-SA-87823.
  • Zentner M.D., G.A. Coles, and I. Therios. 2012. "A Qualitative Assessment of Diversion Scenarios for an Example Sodium Fast Reactor Using the GEN IV PR&PP Methodology." Nuclear Technology 179, no. 1:70-75. PNNL-SA-63903.

2011

  • Coles G.A., A. Sadovsky, and P. Du. 2011. "Quantifying the Impact of Adverse Events on the Electricity Grid as a Function of Grid Topology." In IEEE Power and Energy Society General Meeting, July 22-26, 2012, San Diego, California, 1-5. Piscataway, New Jersey:IEEE. PNNL-SA-84387. doi:10.1109/PESGM.2012.6345620
  • Coles G.A., A.J. Brothers, P.D. Whitney, A.C. Dalton, J. Olson, A.M. White, and S.K. Cooley, et al. 2011. Utility of Social Modeling in Assessment of a State's Propensity for Nuclear Proliferation. PNNL-20492. Richland, WA: Pacific Northwest National Laboratory. Utility of Social Modeling in Assessment of a State's Propensity for Nuclear Proliferation
  • Coles G.A., S.D. Unwin, G.M. Holter, R.B. Bass, and J.E. Dagle. 2011. "Defining resilience within a risk-informed assessment framework." International Journal of Risk Assessment and Management 15, no. 2/3:171-185. PNNL-SA-75420. doi:10.1504/IJRAM.2011.042115
  • Dalton A.C., P.D. Whitney, G.A. Coles, and A.J. Brothers. 2011. "SOCIAL MODELING IN ASSESSEMENT OF A STATE'S PROPENSITY FOR NUCLEAR PROLIFERATION." In Institute of Nuclear Materials Mmanagement 52nd Annual Meeting, July 17-21 2011, Palm Desert CA. Deerfield, Illinois:International Nuclear Materials Management. PNNL-SA-80517.
  • Gastelum Z.N., A.C. Dalton, and G.A. Coles. 2011. "Challenges in Implementing Methodologies for Nonproliferation Assessments." In International Nuclear Materials Management 52nd Annual Meeting, July 17-21, 2011, Palm Desert, California. Deerfield, Illinois:International Nuclear Materials Management. PNNL-SA-80930.

2010

  • Coles G.A., A.J. Brothers, J. Olson, and P.D. Whitney. 2010. "Assessing State Nuclear Weapons Proliferation: Using Bayesian Network Analysis of Social Factors." In Proceedings of the Pacific Northwest International Conference on Global Nuclear Security - The Decade Ahead, April 11-16, 2010, Portland, OR. Deerfield, Illinois:Institute of Nuclear Materials Management. PNNL-SA-72126.
  • Coles G.A., B. Fuller, K. Nordquist, S. Weissenberger, L. Anderson, and B. DuBois. 2010. "Three Kinds of Proactive Risk Analyses for Health Care." Joint Commission Journal on Quality and Patient Safety 36, no. 8:365-375. PNWD-4204.

2009

  • Coles G.A., A.J. Brothers, Z.N. Gastelum, J. Olson, and S.E. Thompson. 2009. Utility of Social Modeling for Proliferation Assessment - Enhancing a Facility-Level Model for Proliferation Resistance Assessment of a Nuclear Enegry System. PNNL-18923. Richland, WA: Pacific Northwest National Laboratory. Utility of Social Modeling for Proliferation Assessment - Enhancing a Facility-Level Model for Proliferation Resistance Assessment of a Nuclear Enegry System
  • Coles G.A., Z.N. Gastelum, A.J. Brothers, and S.E. Thompson. 2009. "Utility of Social Modeling for Proliferation Assessment - Preliminary Findings." In Proceedings of the 50th Annual Meeting of the Institute of Nuclear Materials Management (INMM). Deerfield, Illinois:Institute of Nuclear Materials Management (INMM). PNNL-SA-66885.
  • Coles G.A., Z.N. Gastelum, A.J. Brothers, and S.E. Thompson. 2009. Utility of Social Modeling for Proliferation Assessment - Preliminary Assessment. PNNL-18438. Richland, WA: Pacific Northwest National Laboratory. Utility of Social Modeling for Proliferation Assessment - Preliminary Assessment
  • Whitney P.D., A.J. Brothers, G.A. Coles, J. Young, K.E. Wolf, S.E. Thompson, and D.A. Niesen, et al. 2009. "Technosocial Modeling of IED Threat Scenarios and Attacks." In AAAI 2009 Spring Symposium: Technosocial Predictive Analytics, SS-09-09, 142-147. Menlo Park, California:AAAI Press. PNNL-SA-62879.

2008

  • Coles G.A. 2008. "Prospective System Assessments Used to Enhance Patient Safety: Case Studies from a Collaboration of Engineers and Hospitals in Southwest Washington State." In Safety Engineering, Risk Analysis, and Reliability Methods: ASME International Mechanical Engineering Congress and Exposition, November 11-15, 2007, Seattle, Washington, 14, 117-126. New York, New York:ASME. PNWD-SA-7830.
  • Young J., S.E. Thompson, A.J. Brothers, P.D. Whitney, G.A. Coles, C.L. Henderson, and K.E. Wolf, et al. 2008. "The Use of Dynamic Stochastic Social Behavior Models to Produce Likelihood Functions for Risk Modeling of Proliferation and Terrorist Attacks." In International Conference on Probabilistic Safety Assessment and Management Conference: PSAM 9, May 18-23, 2008, Hong Kong, China, edited by TM Kao, E Zio, V Ho. Hong Kong:Edge Publication Group. PNNL-SA-59107.

2007

  • Coles G.A., and M.D. Zentner. 2007. "Application of the Decision Tree Modeling Approach to Evaluation of Proliferation Resistance." In 48th Annual Meeting of the Institute of Nuclear Materials Management (INMM), 317. Tucson, Arizona:Institute of Nuclear Materials Management. PNNL-SA-56053.
  • Coles G.A., and M.D. Zentner. 2007. "Application of the Event Tree/Fault Tree Modeling Approach to the Evaluation of Proliferation Resistance." In Safety Engineering, Risk Analysis, and Reliability Methods: international Mechanical Engineering Congress and Exposition, 14, 139-148. New York, New York:ASME. PNNL-SA-56057.

2006

  • Coles G.A. 2006. "A Procedure for Using FMECA to Assess High-Risk Healthcare Processes (PSAM-0266)." In Proceedings of the 8th International Conference on Probabilistic Safety Assessment and Management: PSAM 8, May12-18, 2006, New Orleans, Louisiana, edited by MG Stamatelatos and HS Blackman. New York, New York:ASME Press. PNNL-SA-46006.

2005

  • Coles G.A., B. Fuller, K. Nordquist, and A. Kongslie. 2005. "Using Failure Mode Effects and Criticality Analysis for High-Risk Processes at Three Community Hospitals." Joint Commission Journal on Quality and Patient Safety 31, no. 3:132-140. PNNL-SA-42286.

2004

  • Glantz C.S., G.A. Coles, and R.B. Bass. 2004. "A Cyber Security Self-Assessment Method for Nuclear Power Plants." In Transactions of the American Nuclear Society, 91, 45-6. La Grange Park, Illinois:American Nuclear Society. PNNL-SA-42797.

2003

  • Glantz C.S., R.B. Bass, J.R. Cash, G.A. Coles, A.J. Currie, D.J. Gower, and J.J. Heilman, et al. 2003. "A Cyber Security Self-Assessment Method for Critical Infrastructure Protection." In Proceedings of the 2003 ASME International Mechanical Engineering Congress and Exposition, Nov 15-21 2003, Washington, DC. Engineering Technology Management - 2003: Safety Engineering and Risk Analysis, Technology and Society, Engineering Business Management, Homeland Security, 195-198. New York, New York:American Society of Mechanical Engineers. PNNL-SA-39260.

Risk and Decision Sciences

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