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The following information was provided by The following information was provided by the licensee via email:</br>While performing a criticality process analysis, assumptions utilized in modeling the placement of criticality detectors, within the BWXT Nuclear Operations Group Inc. - Lynchburg, VA (BWXT NOG-L) facility, were questioned. Upon further examination of the base assumptions, it was identified that a limited number of process areas in the facility do not have adequate criticality detection capability, meeting the requirements of 10 CFR 70.24(a)(1).</br>Compensatory measures are being systematically implemented; operations within the identified areas have been shut down and processing of special nuclear material in these areas has been halted until compensatory measures can be implemented. The likelihood of a criticality occurring at BWXT NOG-L remains highly unlikely, the performance requirements of 10 CFR 70.61 are still being met, and no Items Relied On For Safety (IROFS) have been affected - all IROFS credited in the prevention of a criticality accident are available and reliable.</br>The Senior Resident Inspector has been notified.</br>* * * UPDATE - THIS EVENT IS BEING PUBLICALLY RELEASED AS OF 9/9/2024 BY HOWIE CROUCH AT 1542 EST * * *9/9/2024 BY HOWIE CROUCH AT 1542 EST * * *  +
14:15:00, 16 October 2023  +
56,800  +
09:51:00, 17 October 2023  +
14:15:00, 16 October 2023  +
The following information was provided by The following information was provided by the licensee via email:</br>While performing a criticality process analysis, assumptions utilized in modeling the placement of criticality detectors, within the BWXT Nuclear Operations Group Inc. - Lynchburg, VA (BWXT NOG-L) facility, were questioned. Upon further examination of the base assumptions, it was identified that a limited number of process areas in the facility do not have adequate criticality detection capability, meeting the requirements of 10 CFR 70.24(a)(1).</br>Compensatory measures are being systematically implemented; operations within the identified areas have been shut down and processing of special nuclear material in these areas has been halted until compensatory measures can be implemented. The likelihood of a criticality occurring at BWXT NOG-L remains highly unlikely, the performance requirements of 10 CFR 70.61 are still being met, and no Items Relied On For Safety (IROFS) have been affected - all IROFS credited in the prevention of a criticality accident are available and reliable.</br>The Senior Resident Inspector has been notified.</br>* * * UPDATE - THIS EVENT IS BEING PUBLICALLY RELEASED AS OF 9/9/2024 BY HOWIE CROUCH AT 1542 EST * * *9/9/2024 BY HOWIE CROUCH AT 1542 EST * * *  +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
00:00:00, 9 September 2024  +
SNM-42  +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
11:20:07, 10 September 2024  +
09:51:00, 17 October 2023  +
0.817 d (19.6 hours, 0.117 weeks, 0.0268 months)  +
14:15:00, 16 October 2023  +
Safety Equipment Failure  +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.