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<p class="MsoNormal">Not used at North Anna<o:p></o:p></p>
<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>From:</b> Global <global-bounces@list.rpalara.org> <b>On Behalf Of
</b>Lopez, Rouell A:(Exelon Nuclear)<br>
<b>Sent:</b> Thursday, October 21, 2021 7:22 AM<br>
<b>To:</b> global@list.rpalara.org<br>
<b>Subject:</b> [EXTERNAL] [Global] Micron Filters<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:red">***This is an EXTERNAL email that was NOT sent from Dominion Energy. Are you expecting this message? Are you expecting a link or attachment? DO NOT click links or open attachments until
you verify them***</span><o:p></o:p></p>
</div>
<p class="MsoNormal">Good Morning,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Looking for information for the following: <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For PWRs:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo3">Has your station used 0.05 micron filters in your letdown/CVCS system? If yes, are these filters located before or after your letdown ion exchangers?<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="2" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo3">Did you experience any issues with unexpected rapid loading of the filters causing high differential pressure? If yes, did this result in any operational challenges other than having
to remove the filter from service?<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="3" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo3">Have you experienced issues that have resulted in your plant no longer using the 0.05 micron filters? If yes, what was the smallest micron filter you replaced them with?<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you ahead of time for your responses. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><i><span style="font-family:"Franklin Gothic Medium",sans-serif;color:#2372B9">Stay Safe
<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><span style="font-family:"Franklin Gothic Medium",sans-serif;color:#2372B9"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Rage Italic";color:#2372B9">Roy Lopez<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#2372B9">Rad Engineer – Sr. ALARA Specialist
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#2372B9">Radiation Protection<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#2372B9">Exelon Nuclear<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#2372B9"><img width="215" height="67" style="width:2.2416in;height:.7in" id="Picture_x0020_12" src="cid:image001.jpg@01D7C64D.EE30B570" alt="EXG_H_RGB_PS_72dpi-01"></span><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:#2372B9"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Franklin Gothic Book",sans-serif;color:#595959">Calvert Cliffs Nuclear Power Plant<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Franklin Gothic Book",sans-serif;color:#595959">1650 Calvert Cliffs Pkwy, Lusby, MD 20657
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Franklin Gothic Book",sans-serif;color:#595959">Office:410-495-3840 | Mobile: 410-474-9084
<o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:Rouell.Lopez@exeloncorp.com"><span style="font-size:8.5pt;font-family:"Franklin Gothic Book",sans-serif;color:blue">Rouell.Lopez@exeloncorp.com</span></a><span style="font-size:8.5pt;font-family:"Franklin Gothic Book",sans-serif;color:#595959">
| </span><a href="https://urldefense.com/v3/__http:/www.exeloncorp.com/__;!!KQQRbYJqkXCDY_8FAQ!WpZlNucXALzbm3lYMV2xan4jTTNJ8N37MyBQ5J7iyTdcQA6EwoJhxEdproRFdXCQUCCSpXi-Of0$"><span style="font-size:8.5pt;font-family:"Franklin Gothic Book",sans-serif;color:blue">www.exeloncorp.com</span></a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img border="0" width="70" height="70" style="width:.725in;height:.725in" id="Picture_x0020_11" src="cid:image002.gif@01D7C64D.EE30B570"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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