SEQUOYAH NUCLEAR PLANT - UNIT 2 FUKUSHIMA NEAR-TERM TASK FORCE RECOMMENDATION 2.3: SEISMIC RESPONSE REPORT I 26-September-2013 WorleyParsons 633 ChestnUt St. Suite 400 Chattanooga TN, 37450 Tel: 423-757-8020 Fax: 423-757-5869 www.worleyparsons.com WorleyParsons Services Pty Ltd ABN 61 001 279812 © Copyright 2013 WorleyParsons Services Pty Ltd NTTF Recommendation 2.3: Seismic Response Report Sequoyah Unit 2 REV DESCRIPTION ORIG REVIEW WORLEY- DATE CUENT DATE PARSONS AP OVAL 1 SON Unit 2Simic 4 -a 6Ls A Edgarf.J. Walkdown Repon L.Titlinaltis 4^&zmmers JEdgar I 2 REVISION LOG Title: Sequoyah Nuclear Plant - Unit 2 Fukushima Near-Term Task Force Recommendation 2.3: Seismic Response Report Revision DESCRIPTION OF REVISION Date No. Approved 0 Initial Issue 12-Nov-2012 1 Revised to add additional references and incorporate lessons learned from self- 26-Sep-2013 assessment internal audit and U.S. Nuclear Regulatory Commission audit Added Sections: * Revision Loa (pages 2A-2C) * 4.3 SWEL Finalization (page 19): added section to explain finalization of Seismic Walkdown Equipment Lists (SWELs). Revised Sections: * Title Page: Revised issue date * Signature Page: Updated name of originator and revised issue date * Table of Contents (page 3): Updated page numbering for entire report body to accommodate the revisions outlined below - report body length increased from 23 pages to 34 pages; updated page references for the appendices to reflect revised page numbering scheme * 1. Executive'Summary (page 4): made minor wording changes in the first and second paragraphs * 2.3 Structures (pages 7-8): added references from Sequoyah Nuclear Plant Living Final Safety Analysis Report (FSAR) * 3.1 Equipment Selection Personnel (page 9): expanded descriptions of the applicable experience of equipment selection personnel * 3.2 Seismic Walkdown Engineers (pages 9-10): expanded descriptions of the applicable experience of seismic walkdown engineers (SWEs); added explanatory notes about training of SWEs * 3.3 Licensing Basis Reviewers (page 10): expanded descriptions of the applicable experience of the Licensing Basis Reviewers * 3.4 IPEEE Vulnerability Incorporation Personnel (pages 10-11): revised section title, made minor wording change, and added explanatory notes about the IPEEE vulnerability incorporation process 0 3.5 Peer Review Team (page 11): expanded descriptions of experience of members of the Peer Review Team and added notes about calculation of HCLPF capacities * 4. Selection of Structures, Systems and Components (page 12): made minor wording changes and condensed the two existing paragraphs to one * 4.1 SWEL 1 Selection (pages 12-17): added descriptive notes about SWEL 1 selection process, as well as Figure 2 (SWEL 1 Selection Process)Table 2 (IPEEE Enhancements), Table 3 (CDF Risk Rankings), and Table 4 (LERF Risk Rankings) * 4.2 SWEL 2 Selection (pages 17-18): added descriptive notes about SWEL 2 selection process, as well as Figure 3 (SWEL 2 Selection Process) 0 5. Seismic Walkdowns and Area Walk-Bys (page 20): revised wording in second paragraph and added explanatory notes about Service Requests (SRs) generated during the course of the walkdowns which were not related to potentially adverse seismic conditions __________ .1 £ TVA 10534 [8-1995] 2A REVISION LOG Title: Sequoyah Nuclear Plant - Unit 2 Fukushima Near-Term Task Force Recommendation 2.3: Seismic Response Report Revision DESCRIPTION OF REVISION Date No. Approved . 5.1 Seismic Walkdown Procedure (page 21): revised explanation of anchorage configuration count and added explanatory notes about anchorage for cabinets and panels * 5.2 SWC & AWC Summary (pages 21): corrected UNID in the bulleted list for Potentially Adverse Seismic Condition 3 * 6.1 Licensing Basis Calculations (pages 23-25): deleted note (second to last sentence) in the first paragraph, added descriptive notes about the CAP program, and added Table 5 (Corrective Action Program Entries) 0 7.1 IPEEE Description (page 28): made minor wording change (substitution of acronym) in first 0 7.2 IPEEE Findings and Vulnerabilities (page 29): added resolution documentation references and associated dates to Table 6 (IPEEE Issues and Resolutions, previously indentified as Table 2 in Report Revision 0) * 7.4 Response to IPEEE Review (pages 29-30): added explanatory notes and added applicable dates and calculation references to Table 7 (Revised HCLPF Equipment) * 8. Peer Review (pages 31-32): added notes to the bulleted list of peer review interaction with SWEs, added Table 8 (Peer Review Team Activities), and added explanatory notes to the summary of the peer review process 0 9. References (page 33): revised description of reference #4 and added references 7-11 0 Appendix A: o revised pagination from pages 24-59 to pages Al -A45 o added explanatory note about the name shown on the EPRI Training Certificate for Karen Carboni) o minor revisions to the resume of Joshua Best, as noted on page A6 (formerly page 30) o 9 pages added to document training records * Appendix B: revised pagination from pages 60-82 to pages B1 -B23; no pages added * Appendix C: revised pagination from pages 83-89 to pages Cl -C7; no pages added * Appendix D: o revised pagination from pages 90-96 to pages D1 -D7 o minor revision to listed UNID for item #12, as shown on page D2 (formerly page 91) o minor revision to listed UNID for item #13, as shown on page D2 (formerly page 91) o minor revision to listed UNID for item #45, as shown on page D3 (formerly page 92) o minor revision to listed UNID for item #51, as shown on page D3 (formerly page 92) o minor revision to listed Description for item #66, as shown on page D3 (formerly page 92) TVA 10534 [8-1995] 2B REVISION LOG Title: Sequoyah Nuclear Plant - Unit 2 Fukushima Near-Term Task Force Recommendation 2.3: Seismic Response Report Revision DESCRIPTION OF REVISION Date No. Approved " minor revision to listed Description for item. #67, as shown on page D3 (formerly page 92) o minor revision to listed UNID for item #74, as shown on page D3 (formerly page 92) o no pages added Appendix E: o revised pagination from pages 97-335 to pages El -E239; o Seismic Walkdown Checklist (SWC) for item #23: 'Room, Area' field revised from '35 - SI Pump Room 2A' to '26 - SI Pump Room 2A', as noted on page E46 (formerly page 142) o SWC for item #72: revised item description, as noted on pages E144-E145 (formerly pages 240-241) o no pages added * Appendix F: revised pagination from pages 336-436 to pages F1-F101; no pages added " Appendix G: revised pagination from pages 437T444 to pages G1 -G8; no pages added ______________ L ______________ TVA 10534 [8-1995] 2C ri• NTTF Recommendation 2.3: Seismic Response Report Sequoyah Unit 2 Table of Contents 1. Executive Sum m ary ....................................................................................................... 4 2. Seism ic Licensing Basis .................................................................................................... 5 2.1. General Plant Description .......................................................................................... 5 2.2. G round Response Spectra ........................................................................................... 5 2.3. Structures ........................................................................................................................ 7 2.4. Equipm ent and System s ............................................................................................. 8 3. Personnel Q ualifications ................................................................................................... 9 3.1. Equipm ent Selection Personnel .................................................................................. 9 3.2, Seism ic W alkdown Engineers ...................................................................................... 9 3.3. Licensing Basis Reviewers ....................................................................................... 10 3.4. IPEEE Vulnerability Incorporation Personnel ............................................................. 10 3.5. Peer Review Team .................................................................................................... 11 4. Selection of Structures, System s and Com ponents ........................................................... 12 4.1, SW EL Selection ......................................................................................................... 12 4.2, SW EL 2 Selection ...................................................................................................... 17 4.3, SW EL Finalization ...................................................................................................... 19 5. Seism ic W alkdowns and Area W alk-Bys ........................................................................... 20 5.1, Seism ic W alkdown Procedure ................................................................................... 20 5.2, SW C & AW C Sum m ary ............................................................................................. 21 6. Licensing Basis Evaluations ............................................................................................. 23 6.1. Licensing Basis Calculations ...................................................................................... 23 6.2, Potential Seism ically Adverse Conditions ................................................................. 26 7. IPEEE Vulnerabilities Resolution Report ..........................................................................