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<p class="MsoNormal">At TVA (Sequoyah, Watts Barr, Browns Ferry) our procedure directs us to do the following:<o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">Establish a dose estimate based on the planned work PLUS an emergent/expanded scope bank of 7-12%.<o:p></o:p></li><ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo1">We typically use 10%, so if our planned work was estimated for 40 REM, the outage estimate would be 44 REM.<o:p></o:p></li></ul>
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">Establish a challenge goal based on the above estimate.<o:p></o:p></li><ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo1">There is no strict requirement on what the challenge goal should be, but we typically use a challenge goal of 90% of the estimate.<o:p></o:p></li></ul>
</ul>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">What is not directed by procedure and varies slightly between sites:<o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">At SQN uur daily targets are based on the challenge goal for the planned work.<o:p></o:p></li><ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo1">If our total estimate is 44 REM (including the bank), the challenge goal would be 39.6 REM.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo1">The sum of the daily targets would be 36 REM, leaving us 3.6 REM to absorb emergent/expanded scope.<o:p></o:p></li></ul>
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">The challenge goal and daily targets are what get published to the site in daily outage reports and discussed at meetings. We have found that this approach helps us drive the conversation
about finding dose reduction opportunities well before we are in danger of exceeding our actual estimate.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">Prior to exceeding the full estimate, we would convene a SAC to ensure site leadership understands that we were trending to exceed the challenge goal and finish near the full estimate.<o:p></o:p></li><ul style="margin-top:0in" type="circle">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo1">If we ultimately exceeded the full estimate by 1.2% we would probably not take any additional action other than mentioning it as a talking point in meetings and ensuring that site
leadership was aware of the trend.<o:p></o:p></li></ul>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Monotype Corsiva"">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt;font-family:"Monotype Corsiva"">John Hertz<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial Narrow",sans-serif">Radiation Protection / ALARA<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial Narrow",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial Narrow",sans-serif">Desk:</span></b><span style="font-size:10.0pt;font-family:"Arial Narrow",sans-serif"> 423-843-6875
<b>Cell:</b> 808-366-0072 <b>Email:</b> <a href="mailto:jjhertz@tva.gov"><span style="color:#467886">jjhertz@tva.gov</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial Narrow",sans-serif">Sequoyah Nuclear Plant<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica Neue";color:black;mso-ligatures:none"><img border="0" width="287" height="49" style="width:2.9895in;height:.5104in" id="Picture_x0020_1" src="cid:image001.png@01DA9681.21B33070" alt="TVA logo"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial Narrow",sans-serif">2600 Sequoyah Access Rd, Soddy-Daisy, TN 37379<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="mso-ligatures:none">From:</span></b><span style="mso-ligatures:none"> Global <global-bounces@list.rpalara.org>
<b>On Behalf Of </b>Morgan, Jonah via Global<br>
<b>Sent:</b> Wednesday, April 24, 2024 4:24 PM<br>
<b>To:</b> global@list.rpalara.org<br>
<b>Subject:</b> [Global] Outage Dose Goal Benchmark<o:p></o:p></span></p>
</div>
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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
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</span></strong><o:p></o:p></p>
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<p class="MsoNormal">All,<o:p></o:p></p>
<p class="MsoNormal">Does your stations have procedural guidance on the Outage Dose Goal or any KPI associated with it. STPs dose goal was 41.00 REM and currently we are at 41.031 REM, and looking to finish up around 41.5 REM total as we finish out our outage
this week. Looking to see what if any, other stations would do if they were 500 mrem over on a Goal of 41 REM. Thoughts?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="background:white"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Jonah Bosworth Morgan</span></i></b><span style="color:#242424"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">South Texas Project Nuclear Operating Company</span></i></b><span style="color:#242424"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">12090 FM 521 Wadsworth, Tx 77483</span></i></b><span style="color:#242424"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Radiation Protection Manager</span></i></b><span style="color:#242424"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Office: (361)972-4045</span></i></b><span style="color:#242424"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Pager : 2167</span></i></b><span style="color:#242424"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F4E79">Mobile: (979)571-5006</span></i></b><span style="color:#242424"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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