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At 1034 CDT on 3/22/12, Cooper Nuclear Sta … At 1034 CDT on 3/22/12, Cooper Nuclear Station declared a Notice of Unusual Event due to a freon leak from a glycol compressor in the sub-basement of their Augmented Radwaste Building. This created a potentially unsafe localized atmosphere in that area per Emergency Action Level HU 3.1. </br>The licensee made a public address system announcement to avoid the area and sent personnel to guard the area to prevent entry. </br>The licensee is monitoring the area for any deterioration. Oxygen levels are currently normal. Cooper Nuclear Station personnel plan to isolate the freon leak and ventilate the area to ensure a habitable atmosphere.</br>There are no safety related systems or components in the affected area. Plant operation is unaffected. As of 1045 CDT, the licensee has notified appropriate state and local governmental agencies. </br>The licensee notified the NRC Resident Inspector. Notified DHS SWO, DHS NICC, FEMA and Nuclear SSA via email.</br> * * * UPDATE AT 1320 EDT ON 3/22/12 FROM ROBERT LECHNER TO PETE SNYDER * * * </br>Cooper Nuclear Station personnel monitored the atmosphere in the affected area for safe entry then entered and isolated the freon leak. They did further extensive monitoring for any pockets of trapped freon gas and further ventilated the area to restore the area to a habitable condition. At 1142 CDT Cooper Nuclear Station exited their Unusual Event condition. </br>Offisite notifications were made per 10 CFR 50.72 (b)(2)(xi). A press release is planned to inform the public of this onsite event.</br>Notified DHS SWO, DHS NICC, FEMA and Nuclear SSA via email, DHS NICC, FEMA and Nuclear SSA via email +
15:34:00, 22 March 2012 +
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11:56:00, 22 March 2012 +
15:34:00, 22 March 2012 +
At 1034 CDT on 3/22/12, Cooper Nuclear Sta … At 1034 CDT on 3/22/12, Cooper Nuclear Station declared a Notice of Unusual Event due to a freon leak from a glycol compressor in the sub-basement of their Augmented Radwaste Building. This created a potentially unsafe localized atmosphere in that area per Emergency Action Level HU 3.1. </br>The licensee made a public address system announcement to avoid the area and sent personnel to guard the area to prevent entry. </br>The licensee is monitoring the area for any deterioration. Oxygen levels are currently normal. Cooper Nuclear Station personnel plan to isolate the freon leak and ventilate the area to ensure a habitable atmosphere.</br>There are no safety related systems or components in the affected area. Plant operation is unaffected. As of 1045 CDT, the licensee has notified appropriate state and local governmental agencies. </br>The licensee notified the NRC Resident Inspector. Notified DHS SWO, DHS NICC, FEMA and Nuclear SSA via email.</br> * * * UPDATE AT 1320 EDT ON 3/22/12 FROM ROBERT LECHNER TO PETE SNYDER * * * </br>Cooper Nuclear Station personnel monitored the atmosphere in the affected area for safe entry then entered and isolated the freon leak. They did further extensive monitoring for any pockets of trapped freon gas and further ventilated the area to restore the area to a habitable condition. At 1142 CDT Cooper Nuclear Station exited their Unusual Event condition. </br>Offisite notifications were made per 10 CFR 50.72 (b)(2)(xi). A press release is planned to inform the public of this onsite event.</br>Notified DHS SWO, DHS NICC, FEMA and Nuclear SSA via email, DHS NICC, FEMA and Nuclear SSA via email +
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100 +
00:00:00, 22 March 2012 +
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>.
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15:34:00, 22 March 2012 +
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.