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<p class="MsoNormal"><span style="color:#1F497D">TVA uses the HOLTEC HI-STORM FW system. Our fuel canister is the MPC-37. Terminology is a bit different but it is a vertical cask storage system. Dose rates vary based on the fuel load so the dose accrual
will vary as well. Training and crew proficiency also impact the dose accrual.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">For our two PWRs, Sequoyah averaged 101.8 mrem and Watts Bar averaged 69.8 mrem during their most recent loading campaigns. These dose totals include all the prep work, the actual stackup and transfer of the
fuel canister, de-stack activities, and installation of the overpack lid. The average decay heat at Sequoyah was 31.86 kW and at Watts Bar was 35.47 kW.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">We stackup and transfer inside the aux building so these doses do not include transport to the ISFSI. That is typically small unusually 2-5 mrem.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Bahnschrift",sans-serif;color:#1F497D">Joel L Armstrong<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Bahnschrift",sans-serif;color:#1F497D">ALARA Engineer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Bahnschrift",sans-serif;color:#1F497D">TVA Spent Fuel Services<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Bahnschrift",sans-serif;color:#1F497D">(256)614-6429 Office<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Bahnschrift",sans-serif;color:#1F497D">(423)280-3417 Mobile<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Global <global-bounces@list.rpalara.org> <b>On Behalf Of
</b>Edelman, Steven K:(Exelon Nuclear)<br>
<b>Sent:</b> Thursday, June 10, 2021 4:11 PM<br>
<b>To:</b> global@list.rpalara.org<br>
<b>Subject:</b> [Global] ISFSI Question on stack up (for vertical storage<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:solid #CC0000 1.0pt;padding:0in 0in 0in 0in">
<p class="MsoNormal" align="center" style="text-align:center;background:yellow"><strong><span style="font-family:"Calibri",sans-serif;color:black">This is an
</span></strong><strong><span style="font-family:"Calibri",sans-serif;color:red">EXTERNAL EMAIL</span></strong><strong><span style="font-family:"Calibri",sans-serif;color:black"> from outside TVA.
</span></strong><strong><span style="font-family:"Calibri",sans-serif;color:red">THINK BEFORE</span></strong><strong><span style="font-family:"Calibri",sans-serif;color:black"> you
</span></strong><strong><span style="font-family:"Calibri",sans-serif;color:red">CLICK links or OPEN attachments.</span></strong><strong><span style="font-family:"Calibri",sans-serif;color:black"> If suspicious, please click the
</span></strong><strong><span style="font-family:"Calibri",sans-serif;color:red">“Report Phishing”</span></strong><strong><span style="font-family:"Calibri",sans-serif;color:black"> button located on the Outlook Toolbar at the top of your screen.
</span></strong><o:p></o:p></p>
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<p class="MsoNormal">All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Can anyone supply their dose they receive while performing the tasks associated with the stack up of the and insertion of the TSC into the VCC? We are preparing to start our first dry cak campaign in the fall and are looking for some experiences
and OE.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormalCxSpMiddle" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-add-space:auto">
<span style="font-size:12.0pt;font-family:"Times New Roman",serif">Steve Edelman<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-add-space:auto">
<span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormalCxSpMiddle" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-add-space:auto">
<span style="font-size:12.0pt;font-family:"Times New Roman",serif">NRRPT/ALARA/RPS/Rad Shipper<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-add-space:auto">
<span style="font-size:12.0pt;font-family:"Times New Roman",serif">Phone: (717) 948-8516<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-add-space:auto">
<span style="font-size:12.0pt;font-family:"Times New Roman",serif">Three Mile Island
<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-add-space:auto">
<span style="font-size:12.0pt;font-family:"Times New Roman",serif">2625 River Road<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Middletown, Pa. 17057<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p>This Email message and any attachment may contain information that is proprietary, legally privileged, confidential and/or subject to copyright belonging to Exelon Corporation or its affiliates ("Exelon"). This Email is intended solely for the use of the
person(s) to which it is addressed. If you are not an intended recipient, or the employee or agent responsible for delivery of this Email to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this Email is
strictly prohibited. If you have received this message in error, please immediately notify the sender and permanently delete this Email and any copies. Exelon policies expressly prohibit employees from making defamatory or offensive statements and infringing
any copyright or any other legal right by Email communication. Exelon will not accept any liability in respect of such communications. -EXCIP<o:p></o:p></p>
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