[Global] [EXTERNAL] Crud Burst Restrictions

[Coughlin, Joseph J: (Constellation Nuclear)]

At Braidwood we don't have a procedure but do have guidance on area restrictions for forced oxidation. IMB (including loops) is restricted for 24hrs. We survey the RCP pump deck IMB after 6hrs and if dose rates are acceptable allow work there at that time. Yes we do degas but have no restrictions........Thx Joe

From: Global <global-bounces at list.rpalara.org> On Behalf Of Cox, Kristian James via Global
Sent: Wednesday, July 30, 2025 10:25 AM
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Subject: [EXTERNAL][Global] Crud Burst Restrictions




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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?
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