Savannah River Site Levels of Control Implementation

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The Savannah River Site (SRS) established a prescriptive approach to defining and protecting major contributors to defense in depth in the mid '90s. This approach came in partial response to the Defense Nuclear Facility Safety Board (DNFSB) criticism at the time of inconsistent classifications between similar facilities at the site. This basic approach of a rigorous and prescriptive minimum definition of levels of control has been in place since that time. Recently SRS has changed its policy of defining major contributors to defense in depth to be a more qualitative approach, with no prescribed minimum number of levels of control. ... continued below

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VINCENT, AM April 27, 2004.

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The Savannah River Site (SRS) established a prescriptive approach to defining and protecting major contributors to defense in depth in the mid '90s. This approach came in partial response to the Defense Nuclear Facility Safety Board (DNFSB) criticism at the time of inconsistent classifications between similar facilities at the site. This basic approach of a rigorous and prescriptive minimum definition of levels of control has been in place since that time. Recently SRS has changed its policy of defining major contributors to defense in depth to be a more qualitative approach, with no prescribed minimum number of levels of control. However, to assure that consistency is maintained, guidance has been developed to identify areas of attention when identifying the major contributors to defense in depth that receive the Safety Significant functional classification label or that are protected within the technical safety requirements. This paper discusses this guidance and its implementation within the overall hazard analysis and functional classification process. Based on the experience with selecting safety structures, systems and components (SSCs) and Administrative Controls, the Savannah River Site has moved from a prescriptive process of control selection based on numbers of levels of control (LOCs) and moved to an informed qualitative process. The guidance within the SRS procedure that governs control selection should permit consistency of application yet be true to the direction in the DOE standard in having these controls selected qualitatively with no prescribed minimum or maximum numbers of safety related controls. This revision to the SRS functional classification procedure and methodology manual has been conceptually approved by the SRS Authorization Basis Steering Committee responsible for the procedure.

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  • Safety Analysis Working Group (SAWG) Workshop 2004, San Francisco, CA (US), 05/01/2004--05/06/2004

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  • Report No.: WSRC-MS-2004-00311
  • Grant Number: AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 823260
  • Archival Resource Key: ark:/67531/metadc787168

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 27, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • May 5, 2016, 6:08 p.m.

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VINCENT, AM. Savannah River Site Levels of Control Implementation, article, April 27, 2004; South Carolina. (digital.library.unt.edu/ark:/67531/metadc787168/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.