[Global] [EXTERNAL] Crud Burst Restrictions

[Meldrum III, William H]

Oconee hasn't done a Full Inventory Crud Burst for years. We lower inventory to the vessel flange level, then go through LPI (RHR) through a small part of the Rx Bldg and parts of the Aux Bldg.

This outage we're going to try skipping Crud Burst altogether due to years of minimal peaks (presumably due to fuel cleaning).

Bill Meldrum
Oconee Nuclear Station
RP/ALARA
x 3204

From: Global <global-bounces at list.rpalara.org> On Behalf Of Cox, Kristian James via Global
Sent: Wednesday, July 30, 2025 11:25 AM
To: 'global at list.rpalara.org' <global at list.rpalara.org>
Subject: [EXTERNAL] [Global] Crud Burst Restrictions

*** CAUTION! EXTERNAL SENDER *** STOP. ASSESS. VERIFY!! Were you expecting this email? Are grammar and spelling correct? Does the content make sense? Can you verify the sender? If suspicious report it, then do not click links, open attachments or enter your ID or password.
Hello all, I am looking for information based off what type of RP restrictions are implemented during Crud Burst. Specifically for the RCS Loops. Do you have a procedure that governs locations to post/restrict during this evolution?

Additional Questions:
Is access restricted completely for the RCS Loops (inside biowall)?
Does your site practice de-gassing first and then Hydrogen Peroxide injection? If so, does your site restrict access during the de-gassing phase?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.rpalara.org/pipermail/global_list.rpalara.org/attachments/20250730/badb7aed/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: HP-0-B-1000-106 R011 Crud Burst.pdf
Type: application/pdf
Size: 2286442 bytes
Desc: HP-0-B-1000-106 R011 Crud Burst.pdf
URL: <http://list.rpalara.org/pipermail/global_list.rpalara.org/attachments/20250730/badb7aed/attachment-0001.pdf>