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Thomas Mander
Anthony Sarrack
Peter Diakow
Joshua Bruce-Black

published on

August 2020

Facilities that handle hazardous materials above threshold quantities are required to assess the impacts due to postulated accidents involving releases of these materials, and to ensure that people are adequately protected from the associated fire, explosion, and toxic hazards. An analysis of these hazards can be based solely on consequences from maximum credible events or can incorporate the likelihood of the events to characterize results in terms of risk. The methods of performing these analyses may vary, but, regardless of the specific techniques used, fundamental principles of thoroughness and defensibility should be achieved. This paper describes best practices and basic requirements for consequence-based and risk-based facility siting studies (FSSs), also commonly referred to as quantitative risk analyses (QRAs), consistent with industry guidance. The fundamental objective of a consequence-based or risk-based FSS is to ensure that the consequences or risks posed by facility operations are minimized to the extent practical.

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