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<p class="MsoNormal"><span style="color:#1F497D">We don’t use any sub-micron at Surry. Interested in others experience with nano fiber filters.<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"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><i><span style="font-size:12.0pt;color:#0070C0">Doug VanHoorebeck<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:12.0pt;color:#0070C0">ALARA Coordinator<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:12.0pt;color:#0070C0">Surry Power Station<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:12.0pt;color:#0070C0">Office: 757-365-2642<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:12.0pt;color:#0070C0">Mobile: 757-617-4191<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:12.0pt;color:#0070C0">Email: <a href="r.vanhoorebeck@dominionenergy.com">
<span style="color:#0070C0">r.vanhoorebeck@dominionenergy.com</span></a><o:p></o:p></span></i></b></p>
<p class="MsoNormal"><span style="color:#1F497D"><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"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Global [mailto:global-bounces@list.rpalara.org]
<b>On Behalf Of </b>Mingus, Cris S<br>
<b>Sent:</b> Monday, July 27, 2020 1:52 PM<br>
<b>To:</b> global@list.rpalara.org<br>
<b>Subject:</b> [EXTERNAL] [Global] sub-micron filtration<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">To all,<o:p></o:p></p>
<p class="MsoNormal">I have several questions about the use of sub-micron filtration (<0.1 micron) in the industry.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoNormal" style="mso-list:l0 level1 lfo1">How many of you are using sub-micron filtration in your primary demineralizer (Let down system here) and spent fuel pool systems?<o:p></o:p></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1">What dose rate limits do you use for change out of those filters?<o:p></o:p></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1">For those using them, how much has the smaller filter size impacted change out frequency?<o:p></o:p></li><li class="MsoNormal" style="mso-list:l0 level1 lfo1">Have the smaller filter sizes had a worthwhile impact on plant source term?
<o:p></o:p></li></ol>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoListParagraph" style="margin-left:0in">Thank you for your answers,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Cris Mingus<o:p></o:p></p>
<p class="MsoNormal">Davis-Besse ALARA Services Supervisor<o:p></o:p></p>
<p class="MsoNormal">Work (419) 321-7854<o:p></o:p></p>
<p class="MsoNormal">Cell (419) 707-3188<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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