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The following information was provided by … The following information was provided by the licensee via fax:</br>At 1618 EST on February 20, 2023, North Anna Power Station notified the Virginia Department of Environmental Quality (DEQ) that water discharged into Lake Anna following hydrostatic testing of tanks associated with a new on-site sewage treatment plant had exceeded the project's general permit (VAG83) pH value. </br>Hydrostatic test water discharge activities to Lake Anna began on February 20, 2023 at 0900 EST. A pH sample was collected at 0955 EST on February 20, 2023 and determined to have a pH of 9.1 which exceeded the maximum permit pH of 9.0. Discharge ceased after the reading was collected. Approximately 354 gallons were discharged to Lake Anna. A follow-up ambient pH sample result of 7.8 was collected on February 20, 2023 at 1401 EST from Lake Anna in the vicinity of the discharge pipe. No evidence of dead fish, foam, or other negative environmental impacts were observed.</br>This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi) for 'Any event or situation, related to the health and safety of the public or on-site personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or will be made. Such an event may include an on-site fatality or inadvertent release of radioactively contaminated materials.'</br>* * * UPDATE ON 02/23/2023 AT 1342 EST FROM BOB PAGE TO IAN HOWARD * * *</br>The following is a summary of information provided by the licensee via telephone:</br>The licensee called to correct the pH sample results from a pH of 9.1 to a pH of 9.93.</br>Notified R2DO (Miller) via phone of 9.93.
Notified R2DO (Miller) via phone +
21:18:00, 20 February 2023 +
56,374 +
17:07:00, 20 February 2023 +
21:18:00, 20 February 2023 +
The following information was provided by … The following information was provided by the licensee via fax:</br>At 1618 EST on February 20, 2023, North Anna Power Station notified the Virginia Department of Environmental Quality (DEQ) that water discharged into Lake Anna following hydrostatic testing of tanks associated with a new on-site sewage treatment plant had exceeded the project's general permit (VAG83) pH value. </br>Hydrostatic test water discharge activities to Lake Anna began on February 20, 2023 at 0900 EST. A pH sample was collected at 0955 EST on February 20, 2023 and determined to have a pH of 9.1 which exceeded the maximum permit pH of 9.0. Discharge ceased after the reading was collected. Approximately 354 gallons were discharged to Lake Anna. A follow-up ambient pH sample result of 7.8 was collected on February 20, 2023 at 1401 EST from Lake Anna in the vicinity of the discharge pipe. No evidence of dead fish, foam, or other negative environmental impacts were observed.</br>This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi) for 'Any event or situation, related to the health and safety of the public or on-site personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or will be made. Such an event may include an on-site fatality or inadvertent release of radioactively contaminated materials.'</br>* * * UPDATE ON 02/23/2023 AT 1342 EST FROM BOB PAGE TO IAN HOWARD * * *</br>The following is a summary of information provided by the licensee via telephone:</br>The licensee called to correct the pH sample results from a pH of 9.1 to a pH of 9.93.</br>Notified R2DO (Miller) via phone of 9.93.
Notified R2DO (Miller) via phone +
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100 +
00:00:00, 23 February 2023 +
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>.
14:45:43, 24 February 2023 +
17:07:00, 20 February 2023 +
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21:18:00, 20 February 2023 +
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.