ML22147A035

SLR Guidance Document Update Public Meeting June 1, 2022, Meeting Slides

ML22147A035
Person / Time
Issue date:	06/01/2022
From:	Hammock J, Sayoc E NRC/NRR/DNRL/NLRP
To:
Sayoc E, 301-415-4084
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ML22147A033	List: ML22147A035
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Download: ML22147A035 (14)

Text

SLR Guidance Document Update Public Meeting Emmanuel Sayoc, Jessica Hammock, June 1, 2022 1

Agenda

• GALLSLR and Assoc. Guidance Doc. Project Overview

• Bases for Updates to Guidance Documents

• Guidance Document Update Process

• Estimated Milestones

• Guidance Doc. Update Statistics

• Overview of GALLSLR Updates

• Overview of SRPSLR Updates

• Completed ISGs to incorporate into the Guidance Documents

• Open Discussion, Opportunity for Comments

• Determine Items of Interest for Future Discussion 2

Project Overview The SLR Guidance Documents

• Generic Aging Lessons Learned for Subsequent License Renewal (SLR) (GALLSLR, NUREG2191), published May 2017

• Standard Review Plan for Review of Subsequent License Renewal Applications for Nuclear Power Plants (SRPSLR, NUREG-2192), published May 2017

• Technical Bases for Changes in the Subsequent License Renewal Guidance Documents NUREG-2191 and NUREG-2192 (Technical Basis Document, NUREG-2221, published Dec 2017 3

Project Overview

• Update SLR Guidance Documents

• Div. of New and Renewed Licenses (DNRL) lead, with inputs from Div. of Engineering and External Hazards (DEX) and Office of Nuclear Regulatory Research (RES)

• PMs Manny Sayoc - PM, Jessica Hammock - PM

• Allen Hiser - Senior Technical Advisor

• Estimated Project Duration: 27 months from all August 2022 (staff draft inputs complete)

• Estimated completion: October 2024 4

Project Overview Reduced Scope Initial SLR Guidance Development SLR Guidance Update

• Development of 6080 Year Aging

• Development of 6080 Year Aging Management Management

• Revised and new guidance (codes,

• Revised and new guidance (codes, standards, (operating experience) OpE, standards, OpE, etc.)

etc.)

• Substantive corrections

• Substantive corrections

• Incorporate completed since prior GALL

• Incorporate completed since prior GALL (SLRISGs since GALLSLR)

(LRISGs since GALL Rev. 2)

• Comprehensive review of GALL and SRP

• Comprehensive review of GALL and SRP

• Expert Panel Discussions

• Expert Panel Discussions

• Public Comment Period

• Public Comment Period

• Many rounds of Public Meetings

• Many rounds of Public Meetings

• Incorporate Lessons Lessoned from SLRs 5

Bases for Updates to SLR Guidance Documents

• Bases for changes:

o Revised and new guidance based on:

New or updated industry guidance, and Codes and standards Plant operating experience To fill gaps or make technical revisions in guidance identified from previous SLR reviews o Substantive corrections o Incorporate completed SLRISGs since initial GALLSLR Update candidates

• Sources for potential changes o Staff o Industry/Public 6

Guidance Document Update Process Staff Develops Draft PreUpdate Public Public Meetings on ACRS Sub Update Guidance Meetings Items of Interest Committee Meeting Documents Staff Adjudicates Public Comment Staff Issues Draft ACRS Full Public Comments Period (60 Days), Update Guidance Committee Meeting into Draft Guidance Public Meetings Documents Documents Opportunities for Public Participation Staff Issues Final Update Guidance Staff Milestones Documents 7

Estimated Milestones Milestones End Date GALLSLR and Guidance Document Public Meetings, Risk Informing MAY 2022 Aging Management Programs Public Meetings on Items of Interest SEP, OCT 2022 MAY 20220 Staff Develops Draft Guidance Documents MAR 2023 ACRS Subcommittee Meeting MAY 2023 Staff Issues Draft Guidance Documents JUL 2023 Public comment period (60 day) begins JULSEP 2023 Public meeting on draft documents JULAUG 2023 Staff Adjudicates Public Comments into Draft Guidance MAY 2024 Documents ACRS Full Committee meeting JUL 2024 Staff Issues Draft Guidance Documents OCT 2024 8

Guidance Doc. Update Statistics GALLSLR/SRPSLR Updates Total Mechanical/RV/RVI 49 Structural 5 Electrical 5 Total 59

• Includes two industry Risk Informed items revising XI.M33, Selective Leaching, and XI.E3, Inaccessible Power Cables Not Subject to 10 CFR 50.49 EQ Requirements. 9

Overview of GALLSLR Updates

• 39 Technical

• 8 related to new or updated Modifications industry guidance, ex.

o ASME Code Case related to o22 AMPs carbon fiber wrap materials oRevision of AMRs o EPRI BWRVIP Reports o Reactor Head Closure Stud

• 7 Additions, ex. Bolting Guidance o TSTF577 oAMRs for copper alloy (>

15% zinc), wooden pole, o ASTM F3125 RPV steel supports o EPRI Technical Reports o AMP for high density

• 7 related to Operating polyethylene pipe, carbon Experience fiber reinforced polymer systems

• 6 Corrections 10

Overview of GALLSLR Updates

• XI.M33 Selective Leaching AMPs To Be Updated

• XI.M35 ASME Code Class 1 Small-Bore Piping

• XI.M2 Water Chemistry

• XI.M36 External Surfaces Monitoring Of Mechanical

• XI.M3 Reactor Head Closure Stud Bolting Components

• XI.M9 BWR Vessel Internals

• XI.M38 Inspection of Internal Surfaces in Miscellaneous Piping and Ducting Components

• XI.M12 Thermal Aging Embrittlement Of Cast Austenitic Stainless Steel (Cass)

• XI.M41 Buried and Underground Piping and Tanks

• XI.M17 Flow-Accelerated Corrosion

• XI.M42 Internal Coatings/Linings For In-Scope Piping, Piping Components, Heat Exchangers, And Tanks

• XI.M19 Steam Generators

• XI.S6 Structures Monitoring

• XI.M20 Open-Cycle Cooling Water System

• XI.E1 Electrical Insulation for Electrical Cables and

• XI.M21 Closed Treated Water Systems Connections Not Subject to 10 CFR 50.49

• XI.M26 Fire Protection Environmental Qualification Requirements

• XI.M27 Fire Water System

• XI.E3 Inaccessible Power Cables Not Subject to 10 CFR 50.49 Environmental Qualification Requirements

• XI.M29 Storage Tanks

• XIE3c Electrical Insulation For Inaccessible Low-

• XI.M30 Fuel Oil Chemistry Voltage Power Cables Not Subject To 10 CFR 50.49

• XI.M32 One-Time Inspection Environmental Qualification Requirements 11

Overview SRPSLR Updates

• 25 Technical Modifications

• 3 related to new or o 22 AMPs updated industry o Revision of FE, TLAA guidance o ASME Code Case related to carbon fiber wrap materials

• 7 Additions o EPRI FAC, BWRVIP Reports o FE on irradiation embrittlement for RV steel o TSTF577 supports o FE related to loss of OD piping due to insulation

• 3 related to Operating rubbing Experience o FE on thermal fatigue in reactor coolant

• 2 Deletion (FE) pressure boundary o Sections 4.7.4.1 and 4.7.4.2 on leakbeforeleak

• 2 Corrections and pump casing flaw tolerance TLAAs 12

Completed ISGs to Add to GALLSLR/SPRSLR

• Following Completed ISGs will be added to the GALLSLR, SRPSLR, and the Technical Basis Document o Structural ISG (ML20181A381) issued 2/18/2021 o Mechanical ISG (ML20181A434) issued 2/18/2021 o Electrical ISG (ML20181A395) issued 2/18/2021 o PWRVI ISG (ML20217L203) issued 1/8/2021 13

Open Discussion Opportunity for Comments Determine Items of Interest for Future Discussion 14