ML22013A293

Trp 45 St. Lucie SLRA - Breakout Questions Masonry Walls

ML22013A293
Person / Time
Site:	Saint Lucie
Issue date:	12/21/2021
From:	Office of Nuclear Reactor Regulation
To:
Rodriguez-Luccioni H
References
EPID L-2021-SLR-0002, L-2021-SLR-0002
Download: ML22013A293 (2)

Text

St. Lucie SLRA: Breakout Questions SLRA Section B.2.3.32, Masonry Walls TRP: 045 Note: Breakout Questions are provided to the applicant and will be incorporated into the publicly-available audit report.

Technical Reviewer Zuhan Xi 12/09/2021 Technical Branch Chief Joseph Colaccino 12/10/2021 Breakout Session Date/Time To be filled in by PM Applicant Staff NRC staff To be filled out by PM during breakout Question Number SLRA Section SLRA Page Background / Issue (As applicable/needed)

Discussion Question / Request Outcome of Discussion 1

B.2.3.32 B-245 GALL-SLR XI.S5 - Acceptance Criteria recommends that observed degradation is assessed against the evaluation basis to confirm that the degradation has not invalidated the original evaluation assumptions or impacted the capability to perform the intended functions.

GALL-SLR XI.S5 also states, in part, that

[t]he U.S. Nuclear Regulatory Commission (NRC) Inspection and Enforcement Bulletin (IEB) 80-11, Masonry Wall Design, and NRC Information Notice (IN) 87-67, Lessons Learned from Regional Inspections of Licensee Actions in Response to IE Confirm whether the evaluation basis used for acceptance criteria for the Masonry Walls program is adequate and meets NUREG-2921 XI.S5.

Bulletin 80-11, constitute an acceptable basis for a masonry wall aging management program (AMP).

In the St. Lucie Units 1 and 2 Subsequent License Renewal Aging Management Program Basis Document - Masonry Walls (NEESL00008-REPT-072, Rev. 0),

Section 4.6, Acceptance Criteria, states that masonry block walls are inspected using evaluation basis established in response to IE Bulletin 80-11. It appears that the evaluation basis of the acceptance criteria only come from the established response to NRC IEB 80-11, and no other evaluation basis is involved.