<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:"Freestyle Script";
panose-1:3 8 4 2 3 2 5 11 4 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle21
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:1955095261;
mso-list-template-ids:-101933552;}
@list l1
{mso-list-id:1960214436;
mso-list-type:hybrid;
mso-list-template-ids:1108008014 67698703 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l1:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level2
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l1:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level5
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l1:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level8
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">None of the filter sizes at Watts Bar Nuclear are smaller than 0.1 micron.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Sincerely,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Freestyle Script";color:#1F497D">Kevin Weirich<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">ALARA Specialist (WBN)</span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">(W) 423-365-8022<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">(M) 253-722-9861<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<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>Mingus, Cris S<br>
<b>Sent:</b> Monday, July 27, 2020 1:50 PM<br>
<b>To:</b> global@list.rpalara.org<br>
<b>Subject:</b> [Global] sub-micron filtration<o:p></o:p></p>
</div>
</div>
<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>
</div>
<div>
<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:l1 level1 lfo3">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:l1 level1 lfo3">What dose rate limits do you use for change out of those filters?<o:p></o:p></li><li class="MsoNormal" style="mso-list:l1 level1 lfo3">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:l1 level1 lfo3">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>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Electronic Confidentiality and Privacy Notice: This e-mail, and any attachments, contain information that may be confidential, constitutes non-public information, may be
protected by electronic communication privacy laws, or is a privileged communication (attorney-client or otherwise). The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader
of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, use, disclosure, dissemination, distribution, or copying
of this message is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replay e-mail or by phone, and destroy all copies of the original message.
<o:p></o:p></span></p>
</div>
</div>
</body>
</html>