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<p class="MsoNormal"><span style="font-size:11.0pt">Kevin,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Wolf Creek uses Master lee. They use
</span><span class="ui-provider">a Baron flange cleaner, that they also use at DC Cook.<o:p></o:p></span></p>
<p class="MsoNormal"><span class="ui-provider"><o:p> </o:p></span></p>
<p class="MsoNormal"><span class="ui-provider">Hope this helps,<o:p></o:p></span></p>
<p class="MsoNormal"><span class="ui-provider">French<o:p></o:p></span></p>
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<p class="MsoNormal" style="page-break-after:avoid"><span style="font-size:14.0pt;font-family:"Brush Script MT"">Bob E. French
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Times New Roman",serif">Radiation Protection Division Readiness Coordinator
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Times New Roman",serif">Wolf Creek Generating Station<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Times New Roman",serif">1550 Oxen LN.NE.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Times New Roman",serif">Burlington, KS. 66839<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Times New Roman",serif">Bob.French@Evergy.com<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Times New Roman",serif">(620) 364-8831 x8745<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Times New Roman",serif">Cell (620) 203-1670<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> Global <global-bounces@list.rpalara.org>
<b>On Behalf Of </b>kevin.licklider--- via Global<br>
<b>Sent:</b> Thursday, June 08, 2023 1:31 PM<br>
<b>To:</b> global@list.rpalara.org<br>
<b>Subject:</b> [EXTERNAL][Global] Reactor Vessel flange cleaning<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">Good Moring All, I hope everyone is finished with their outage, but I have some questions. What is your process for cleaning the reactor vessel flange prior to
setting the reactor head? Clean underwater? Employ a flange cleaning tool? If you
<o:p></o:p></span></p>
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<p class="MsoNormal"> <a href="https://us-phishalarm-ewt.proofpoint.com/EWT/v1/NF9KyNs0!XkBzpfaGc97_ZoLc-zJU8hSeJC7bsGekQNomfJfWJmSPbVk95bcZa-u1aQyeuzkicvGbLYl08EronUi2GSpjcGAQtn6LEOYws2DDQFqbxjbisSoPXZA9o6ApE500kffBB_flZV4cnG23SQ$" target="_blank"><strong><span style="font-size:10.5pt;font-family:"Arial",sans-serif;color:black;border:solid #666666 1.0pt;padding:6.0pt;font-weight:normal;text-decoration:none"> Report Suspicious </span></strong></a>
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<p class="MsoNormal"><span style="font-size:11.0pt">Good Moring All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I hope everyone is finished with their outage, but I have some questions.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">What is your process for cleaning the reactor vessel flange prior to setting the reactor head? Clean underwater? Employ a flange cleaning tool?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">If you use a flange cleaning tool who is the manufacturer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">At NAPS we wait until the head is approximately 18” from the flange for shielding and use long handled tools to clean the O-ring grooves.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">One unit has experienced a slight inner O-ring leak during power operations ~0.05 gpm.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thank You in Advance for your reply<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">PS<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks for the replies already from Seabrook, Braidwood, Sequoyah and Watts Bar on this matter.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Kevin Licklider<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">North Anna Power Station<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">ALARA Coordinator<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">540-894-2873<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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