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The following information was provided by … The following information was provided by the licensee via phone and email:</br>At 1922 CDT on 07/02/2025, the Farley Unit 1 and Unit 2 seismic monitoring panel experienced a fault, rendering the panel nonfunctional. </br>Compensatory measures for seismic event classification have been implemented in accordance with Farley procedures. </br>This report is being submitted as an eight-hour, non-emergency notification for a loss of emergency assessment capability. This event is reportable in accordance with 10 CFR 50.72(b)(3)(xiii) because the seismic monitoring panel is the method for evaluating if an operational basis earthquake (OBE) threshold has been exceeded following a seismic event. This is in accordance with the initiating condition for a seismic event greater than OBE levels and emergency action level HU2. There was no impact on the health and safety of the public or plant personnel. </br>The NRC Resident Inspector has been notified.</br>The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:</br>The licensee confirmed alternative means of recognizing a seismic event for emergency plan entry are available.</br>* * * UPDATE ON 07/17/2025 AT 1420 EDT FROM DANIEL HERSHMAN TO JOSUE RAMIREZ * * *</br>The following information was provided by the licensee via phone and email:</br>It was determined through event investigation that two additional unplanned events occurred within a 3-year period. The seismic computer experienced an unplanned event on 9/29/24 at 1306 CDT and was restored on 9/30/24 at 1742. The other unplanned event occurred on 3/19/25 at 1120 and was restored to service on 3/24/25 at 1626.</br>The NRC Resident Inspector has been notified.</br>Notified R2DO (Davis)r has been notified.
Notified R2DO (Davis) +
00:22:00, 3 July 2025 +
57,800 +
17:27:00, 3 July 2025 +
00:22:00, 3 July 2025 +
The following information was provided by … The following information was provided by the licensee via phone and email:</br>At 1922 CDT on 07/02/2025, the Farley Unit 1 and Unit 2 seismic monitoring panel experienced a fault, rendering the panel nonfunctional. </br>Compensatory measures for seismic event classification have been implemented in accordance with Farley procedures. </br>This report is being submitted as an eight-hour, non-emergency notification for a loss of emergency assessment capability. This event is reportable in accordance with 10 CFR 50.72(b)(3)(xiii) because the seismic monitoring panel is the method for evaluating if an operational basis earthquake (OBE) threshold has been exceeded following a seismic event. This is in accordance with the initiating condition for a seismic event greater than OBE levels and emergency action level HU2. There was no impact on the health and safety of the public or plant personnel. </br>The NRC Resident Inspector has been notified.</br>The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:</br>The licensee confirmed alternative means of recognizing a seismic event for emergency plan entry are available.</br>* * * UPDATE ON 07/17/2025 AT 1420 EDT FROM DANIEL HERSHMAN TO JOSUE RAMIREZ * * *</br>The following information was provided by the licensee via phone and email:</br>It was determined through event investigation that two additional unplanned events occurred within a 3-year period. The seismic computer experienced an unplanned event on 9/29/24 at 1306 CDT and was restored on 9/30/24 at 1742. The other unplanned event occurred on 3/19/25 at 1120 and was restored to service on 3/24/25 at 1626.</br>The NRC Resident Inspector has been notified.</br>Notified R2DO (Davis)r has been notified.
Notified R2DO (Davis) +
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>.
100 +
00:00:00, 17 July 2025 +
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>.
11:20:02, 18 July 2025 +
17:27:00, 3 July 2025 +
true +
false +
0.712 d (17.08 hours, 0.102 weeks, 0.0234 months) +
00:22:00, 3 July 2025 +
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.