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This notification is being made pursuant t … This notification is being made pursuant to 10 CFR 50.72(b)(2)(xi) due to the fact that Exelon Nuclear has informed the Illinois Emergency Management Agency and Illinois Environmental Protection Agency of recent groundwater monitoring results at Dresden Station. This notification was made at 15:22 hours CDT on June 6, 2009. </br>As part of the Station's continuing environmental monitoring and sampling program, sample results from some of the monitoring wells have indicated elevated levels of tritium requiring notification of the State of Illinois. Based on sampling data obtained to date, the tritium in the groundwater is confined to Exelon property and poses no threat to public health or safety.</br>The IEPA/ IEMA regulation requires notification when a release to soil, groundwater, or surface water goes off-site at greater than 200 pCi/L or remains on-site greater than 0.002 Curies. Based upon the monitoring well results and the volume and concentration of groundwater infiltration into the nearby storm sewer, it is likely that the 0.002 Curie on-site threshold has been exceeded.</br>The Station continues to track this issue by monitoring the existing wells and initiation of mitigative actions to contain any release and ensure it remains on-site. At this time, the source of the tritium has not been identified.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
20:22:00, 6 June 2009 +
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17:19:00, 6 June 2009 +
20:22:00, 6 June 2009 +
This notification is being made pursuant t … This notification is being made pursuant to 10 CFR 50.72(b)(2)(xi) due to the fact that Exelon Nuclear has informed the Illinois Emergency Management Agency and Illinois Environmental Protection Agency of recent groundwater monitoring results at Dresden Station. This notification was made at 15:22 hours CDT on June 6, 2009. </br>As part of the Station's continuing environmental monitoring and sampling program, sample results from some of the monitoring wells have indicated elevated levels of tritium requiring notification of the State of Illinois. Based on sampling data obtained to date, the tritium in the groundwater is confined to Exelon property and poses no threat to public health or safety.</br>The IEPA/ IEMA regulation requires notification when a release to soil, groundwater, or surface water goes off-site at greater than 200 pCi/L or remains on-site greater than 0.002 Curies. Based upon the monitoring well results and the volume and concentration of groundwater infiltration into the nearby storm sewer, it is likely that the 0.002 Curie on-site threshold has been exceeded.</br>The Station continues to track this issue by monitoring the existing wells and initiation of mitigative actions to contain any release and ensure it remains on-site. At this time, the source of the tritium has not been identified.</br>The licensee has notified the NRC Resident Inspector.e has notified the NRC Resident Inspector. +
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>.
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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>.
02:11:57, 2 March 2018 +
17:19:00, 6 June 2009 +
true +
false +
-0.127 d (-3.05 hours, -0.0182 weeks, -0.00418 months) +
20:22:00, 6 June 2009 +
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.