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The following information was provided by The following information was provided by the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection (the Department), via email:</br>On November 21, 2025, the licensee was performing a routine sealed source leak test and discovered that a Cs-137 vial reference standard (model RV-137-200U, S/N 1710-68-8) was leaking. The licensee used a Capintec CRC 55tW well counter to determine if the source was leaking or contaminated. The source container was wipe-tested on the inside and found to also be contaminated. The dose calibrator dipper was very slightly contaminated and also removed from service. All other equipment associated with the source was wipe tested and found to be free of contamination. The source was immediately removed from service. The sealed source was replaced in the original lead container and placed into gloves and a plastic bag along with all associated wipes and the dose calibrator dipper. The licensee will package the material and send it for disposal. The estimated activity of the source was 170 microcuries, and the leak test results were 0.0139 microcuries.</br>The Department will perform a reactive inspection. More information will be provided as it is received.</br>Event report number: PA250016s received. Event report number: PA250016  +
05:00:00, 21 November 2025  +
10:50:00, 25 November 2025  +
05:00:00, 21 November 2025  +
The following information was provided by The following information was provided by the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection (the Department), via email:</br>On November 21, 2025, the licensee was performing a routine sealed source leak test and discovered that a Cs-137 vial reference standard (model RV-137-200U, S/N 1710-68-8) was leaking. The licensee used a Capintec CRC 55tW well counter to determine if the source was leaking or contaminated. The source container was wipe-tested on the inside and found to also be contaminated. The dose calibrator dipper was very slightly contaminated and also removed from service. All other equipment associated with the source was wipe tested and found to be free of contamination. The source was immediately removed from service. The sealed source was replaced in the original lead container and placed into gloves and a plastic bag along with all associated wipes and the dose calibrator dipper. The licensee will package the material and send it for disposal. The estimated activity of the source was 170 microcuries, and the leak test results were 0.0139 microcuries.</br>The Department will perform a reactive inspection. More information will be provided as it is received.</br>Event report number: PA250016s received. Event report number: PA250016  +
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, 25 November 2025  +
PA-0073  +
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>.
12:20:03, 3 December 2025  +
10:50:00, 25 November 2025  +
4.243 d (101.83 hours, 0.606 weeks, 0.139 months)  +
05:00:00, 21 November 2025  +
Leaking Source  +
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.