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<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Good morning,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US">Normal practice for us is to do the accumulator blows into the refuel cavity when it is partially flooded up. We’ve not had airborne activity issues but the OCC RP lead informs the
Containment RP team to keep an eye on our local airborne monitors and we trend the online particulate monitors in the OCC. We do not restrict access into Containment.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#FF6F18">Richard Parlone</span></b><span style="font-size:10.5pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#04488D">Head of Radiological Protection<br>
</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#04488D">Technical & Safety Support Department<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#04488D">EDF Nuclear Operations<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Sizewell B Power Station, Suffolk, United Kingdom IP16 4UR</span><span style="color:#1F497D"><br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#7F7F7F">T:<b>
</b>(+44) (0)1728 65 3750 (Internal 718 3750)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img width="154" height="68" style="width:1.6041in;height:.7083in" id="_x0000_i1029" src="cid:image002.png@01D9C08D.A74048B0"></span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#7F7F7F"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Global <global-bounces@list.rpalara.org>
<b>On Behalf Of </b>Williams, Michelle Lewis<br>
<b>Sent:</b> 27 July 2023 13:17<br>
<b>To:</b> HOWARD David (Framatome) <david.howard@framatome.com>; global@list.rpalara.org<br>
<b>Subject:</b> Re: [Global] Accumulator dumping<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><strong><span lang="EN-US" style="font-size:9.0pt;font-family:"Helvetica",sans-serif;color:black">This Message originated outside your organisation.</span></strong><span lang="EN-US" style="font-size:9.0pt;font-family:"Helvetica",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Good morning,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">During our 2R22 outage, operations vented the accumulators to the cavity when it was flooded up. We didn’t have any airborne issues, but the dose rates around the cavity were 50% higher than normal.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:4.0pt"><b><span lang="EN-US" style="font-family:"Calibri Light",sans-serif;color:black">Michelle Williams<br>
</span></b><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:black">Radiation Protection Manager
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:4.0pt"><a href="https://www.southernnuclear.com/" title="https://www.georgiapower.com/"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:#007DB9">Southern
Nuclear</span></a><b><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:black"> </span></b><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:#A6A6A6">|</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:gray"> </span><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:black">Radiation
Protection Vogtle 1&2<br>
</span><a href="mailto:miwillia@southernco.com"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:blue">miwillia@southernco.com</span></a><span style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:#007DB9">
</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:#A6A6A6">|</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:gray"> </span><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:black">O:
706.848.4236 </span><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:#A6A6A6">|</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:gray"> </span><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:black">C:
919.770.7138<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:4.0pt"><img border="0" width="145" height="23" style="width:1.5104in;height:.2395in" id="Picture_x0020_3" src="cid:image003.png@01D9C08D.A74048B0" alt="cid:image002.png@01D9C062.C6F5DD30"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri Light",sans-serif;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Global <</span><a href="mailto:global-bounces@list.rpalara.org"><span lang="EN-US">global-bounces@list.rpalara.org</span></a><span lang="EN-US">>
<b>On Behalf Of </b>HOWARD David (Framatome)<br>
<b>Sent:</b> Wednesday, July 26, 2023 12:48 PM<br>
<b>To:</b> </span><a href="mailto:global@list.rpalara.org"><span lang="EN-US">global@list.rpalara.org</span></a><span lang="EN-US"><br>
<b>Subject:</b> [Global] Accumulator dumping<o:p></o:p></span></p>
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</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p align="center" style="text-align:center"><strong><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black;background:#F26322"> </span></strong><strong><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:white;background:#F26322">EXTERNAL
MAIL: Caution Opening Links or Files</span></strong><strong><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:black;background:#F26322"> </span></strong><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Weirich, Kevin Allen <</span><a href="mailto:kaweirich@tva.gov"><span lang="EN-US">kaweirich@tva.gov</span></a><span lang="EN-US">>
<br>
<b>Sent:</b> Wednesday, July 26, 2023 5:31 AM<br>
<b>To:</b> Global <</span><a href="mailto:global-bounces@list.rpalara.org"><span lang="EN-US">global-bounces@list.rpalara.org</span></a><span lang="EN-US">><br>
<b>Subject:</b> Accumulator dumping<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">During the outage, we have had a first time issues with accumulator valve testing (Accumulator dumps into the cavity when it is full of water) resulting in airborne conditions in upper containment.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Does anyone else have this issue?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If so do you restrict access during accumulator dump activities in case of airborne conditions?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Sincerely,<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Kevin Weirich<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Watts Bar Nuclear – ALARA Specialist<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:7.5pt;background:white"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><img border="0" width="381" height="65" style="width:3.9687in;height:.677in" id="Picture_x0020_1" src="cid:image007.png@01D9C08D.9324E250" alt="TVA logo"></span><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-top:15.0pt;background:white"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;background:white">W.</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;background:white"> 423-365-1382 <b>M.</b> 253-722-9861
<b>E.</b> </span><a href="mailto:kaweirich@tva.gov"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;background:white">kaweirich@tva.gov</span></a><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">
<br>
<span style="background:white">1270 Nuclear Plant Road, Spring City, TN 37381<o:p></o:p></span></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:9.0pt;color:gray"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:9.0pt;color:gray">NOTICE:</span></b><span lang="EN-US" style="font-size:9.0pt;color:gray"> This electronic message transmission contains information that may be TVA SENSITIVE, TVA RESTRICTED, or TVA
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