<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=windows-1256">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><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:Aptos;}
@font-face
{font-family:"Arial Black";
panose-1:2 11 10 4 2 1 2 2 2 4;}
@font-face
{font-family:Harrington;
panose-1:4 4 5 5 5 10 2 2 7 2;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Aptos",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#467886;
text-decoration:underline;}
span.EmailStyle23
{mso-style-type:personal-reply;
font-family:"Aptos",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
mso-ligatures:none;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></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="#467886" vlink="#96607D" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal">Amy,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Callaway uses a 5 micron filter in our trinuke set up. We also use our installed demin beds as well.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">Aaron Enloe<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">Manager, Radiation Protection<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual">573-592-9286<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">From:</span></b><span style="font-family:"Calibri",sans-serif"> Global <global-bounces@list.rpalara.org>
<b>On Behalf Of </b>Holmes, Robert D: (Constellation Nuclear) via Global<br>
<b>Sent:</b> Thursday, June 19, 2025 12:20 PM<br>
<b>To:</b> Sotomayor, Amy <asotoma@entergy.com>; global@list.rpalara.org<br>
<b>Subject:</b> Re: [Global] [EXTERNAL] Benchmark - Micron size for Fuel Pool Purification Filtration<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white">During operation and once restarted we run an in-pool demineralizer to clean/purify the pool inventory. When Tri-Nukes are used we usually used 5 or 10 micron depending
on loading and change out frequency. V/R Robert D. Holmes Senior Manager<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><b><span style="font-size:13.5pt;font-family:"Arial",sans-serif;color:crimson">EXTERNAL SENDER</span></b><span style="font-size:12.0pt">
</span><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#070707">STOP.THINK.QUESTION.</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#070707"><br>
Verify unexpected requests before opening links or attachments.</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<div class="MsoNormal" align="center" style="text-align:center"><span style="font-size:12.0pt">
<hr size="2" width="100%" align="center">
</span></div>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual">During operation and once restarted we run an in-pool demineralizer to clean/purify the pool inventory. When Tri-Nukes are used we usually used
5 or 10 micron depending on loading and change out frequency.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual">V/R</span><span style="font-size:12.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual">Robert D. Holmes<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual">Senior Manager Christopher M. Crane Clean Energy Center
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual">Radiation Protection<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual">Office Deactivated as of 6/29/23<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual">MS Teams phone 267.533.5607<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual">Cell 717.495.2321<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><img border="0" width="158" height="31" style="width:1.6458in;height:.3229in" id="Picture_x0020_10" src="cid:image001.jpg@01DBE115.87EEAB50" alt="Logo
Description automatically generated"></span><span style="font-family:"Calibri",sans-serif"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial Black",sans-serif;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial Black",sans-serif"><img border="0" width="166" height="101" style="width:1.7291in;height:1.052in" id="Picture_x0020_2" src="cid:image002.png@01DBE115.87EEAB50"></span><span style="font-size:12.0pt;font-family:"Arial Black",sans-serif"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Arial",sans-serif;mso-ligatures:standardcontextual"><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><span style="font-family:"Calibri",sans-serif">From:</span></b><span style="font-family:"Calibri",sans-serif"> Global <<a href="mailto:global-bounces@list.rpalara.org">global-bounces@list.rpalara.org</a>>
<b>On Behalf Of </b>Sotomayor, Amy via Global<br>
<b>Sent:</b> Thursday, June 19, 2025 1:14 PM<br>
<b>To:</b> <a href="mailto:global@list.rpalara.org">global@list.rpalara.org</a><br>
<b>Subject:</b> [EXTERNAL][Global] Benchmark - Micron size for Fuel Pool Purification Filtration<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p> <o:p></o:p></p>
<table class="MsoNormalTable" border="0" cellpadding="0" style="background:black">
<tbody>
<tr>
<td width="654" style="width:490.5pt;background:red;padding:.75pt .75pt .75pt .75pt">
<p><em><b><span style="font-family:"Aptos",sans-serif;color:yellow">EXTERNAL MAIL. Do not click links or open attachments from unknown senders or unexpected Email.</span></b></em><o:p></o:p></p>
</td>
</tr>
</tbody>
</table>
<p> <o:p></o:p></p>
<div>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual">Team,
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual">I have an action to:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual">Perform an informal benchmark with industry peers to determine industry best practices in relations to the micron size used for Fuel Pool Purification filtering.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual">Currently WF3 uses a 20-micron filter for Fuel Pool Purification filtering.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual">Any/all information you may have would be greatly appreciated.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt;font-family:Harrington;color:#0070C0">Amy Sotomayor<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt;font-family:Harrington;color:#0070C0">RP Supervisor Waterford 3<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt;font-family:Harrington;color:#0070C0">U.S. WIN Region IV Public Outreach Chair<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt;font-family:Harrington;color:#0070C0">504-739-7500 (work)<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:14.0pt;font-family:Harrington;color:#0070C0">479-223-0525 (cell)<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="mso-ligatures:standardcontextual"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">This message is intended for the exclusive use of the intended addressee. If you have received this message in error or are not the intended addressee or his or her authorized agent, please notify me immediately
by e-mail, discard any paper copies and delete all electronic files of this message.
<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:12.0pt">This Email message and any attachment may contain information that is proprietary, legally privileged, confidential and/or subject to copyright belonging to Constellation Energy Corporation or its affiliates
("Constellation"). 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. Constellation policies expressly prohibit
employees from making defamatory or offensive statements and infringing any copyright or any other legal right by Email communication. Constellation will not accept any liability in respect of such communications. -CEGIP
<o:p></o:p></span></p>
</div>
This communication and any attachments may be privileged and/or confidential and protected from disclosure, and are otherwise the exclusive property of Ameren Corporation and its affiliates (Ameren) or the intended recipient. If you are not the intended recipient,
you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. Note that any views or opinions presented in this message do not necessarily represent those of Ameren. All e-mails are subject to Ameren
policies. If you have received this in error, please notify the sender immediately by replying to the message and deleting the material from any computer.
</body>
</html>