ML24344A173

Supplement for Responses to the Nuclear Regulatory Commissions (NRC) Request for Additional Information for the Amendment Request to Final Safety Analysis Report Amendment No. 15, Revision 24C

ML24344A173
Person / Time
Site:	07201031
Issue date:	12/09/2024
From:	NAC International
To:	Office of Nuclear Material Safety and Safeguards
Shared Package
ML24344A171	List: ML24344A172 ML24344A173
References
CAC 001028, EPID L-2023-LLA-0143
Download: ML24344A173 (1)

Text

Atlanta Corporate Headquarters: 2 Sun Court, Suite 220, Norcross, Georgia 30092 USA Phone 770-447-1144, www.nacintl.com December 2024 Docket No. 72-1031 MAGNASTOR (Modular Advanced Generation Nuclear All-purpose STORage)

FINAL SAFETY ANALYSIS REPORT Amendment 15 RAI Responses Supplement Revision 24C to ED20240184 Page 1 of 2 List of Changes for MAGNASTOR FSAR Amendment 15 RAI Response Supplement Revision 24C (Docket No 72-1031)

NAC International December 2024 to ED20240184 Page 2 of 2 List of Changes for the MAGNASTOR FSAR, Revision 24C Note: The List of Effective Pages and the Chapter Table of Contents, List of Figures, and List of Tables have been revised accordingly to reflect the list of changes detailed below.

Chapter 1 No changes.

Chapter 2 No changes.

Chapter 3 Page 3.14.3-17, modified text at the bottom of the page where indicated.

Chapter 4 No changes.

Chapter 5 Page 5.5-4, modified text at the bottom of the page where indicated.

Chapter 6 No changes.

Chapter 7 No changes.

Chapter 8 No changes.

Chapter 9 No changes.

Chapter 10 No changes.

Chapter 11 Page 11.3-2, modified text at the bottom of the page where indicated.

Chapter 12 No changes.

Chapter 13 No changes.

Chapter 14 No changes.

Chapter 15 No changes.

to ED20240184 Page 1 of 1 FSAR LOEP and Changed Pages for MAGNASTOR FSAR Amendment 15 RAI Response Supplement Revision 24C (Docket No 72-1031)

NAC International December 2024

Atlanta Corporate Headquarters: 2 Sun Court, Suite 220, Norcross, Georgia 30092 USA Phone 770-447-1144, www.nacintl.com December 2024 Docket No. 72-1031 MAGNASTOR (Modular Advanced Generation Nuclear All-purpose STORage)

FINAL SAFETY ANALYSIS REPORT Amendment 15 RAI Responses Supplement Revision 24C

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C List of Effective Pages Page 1 of 9 Chapter 1 Page 1-i................................... Revision 23A Page 1-1..................................... Revision 13 Page 1.1-1 thru 1.1-2.................. Revision 14 Page 1.1-3............................... Revision 23A Page 1.1-4 thru 1.1-5.................. Revision 14 Page 1.1-6................................ Revision 23E Page 1.1-7............................... Revision 23A Page 1.2-1 thru 1.2-2.................. Revision 14 Page 1.3-1.................................. Revision 13 Page 1.3-2.................................. Revision 14 Page 1.3-3.................................... Revision 5 Page 1.3-4.................................. Revision 14 Page 1.3-5 thru 1.3-7............... Revision 23A Page 1.3-8................................ Revision 23E Page 1.3-9 thru 1.3-11............. Revision 23A Page 1.3-12 thru 1.3-16.............. Revision 14 Page 1.3-17............................. Revision 23A Page 1.3-18................................ Revision 14 Page 1.3-19............................. Revision 23A Page 1.3-20................................ Revision 14 Page 1.3-21............................. Revision 23A Page 1.3-22................................ Revision 14 Page 1.3-23 thru 1.3-24........... Revision 23A Page 1.3-28................................ Revision 14 Page 1.4-1.................................. Revision 14 Page 1.5-1.................................. Revision 13 Page 1.6-1.................................. Revision 13 Page 1.6-2.................................... Revision 0 Page 1.7-1.................................... Revision 0 Page 1.7-2.................................. Revision 13 Page 1.8-1 thru 1.8-2................ Revision 23E 59 drawings (see Section 1.8)

Chapter 2 Page 2-i...................................... Revision 13 Page 2-ii.................................. Revision 23A Page 2-1..................................... Revision 14 Page 2.1-1.................................... Revision 5 Page 2.1-2............................... Revision 23A Page 2.1-3.................................... Revision 5 Page 2.1-4.................................. Revision 11 Page 2.1-5.................................... Revision 5 Page 2.2-1.................................. Revision 14 Page 2.2-2................................ Revision 23E Page 2.2-3 thru 2.2-11............. Revision 23A Page 2.3-1 thru 2.3-10................ Revision 13 Page 2.4-1.................................... Revision 0 Page 2.4-2 thru 2.4-6.................. Revision 13 Page 2.4-7 thru 2.4-8............... Revision 23A Page 2.5-1.................................. Revision 13 Page 2.6-1.................................... Revision 0 Page 2.6-2.................................. Revision 13 Chapter 3 Page 3-i thru 3-iii.................... Revision 23A Page 3-iv thru 3-v....................... Revision 14 Page 3-vi thru 3-xi.................. Revision 23A Page 3-1....................................... Revision 0 Page 3.1-1 thru 3.1-2.................. Revision 13 Page 3.1-3 thru 3.1-4............... Revision 23A Page 3.1-5 thru 3.1-7................ Revision 23E Page 3.1-8............................... Revision 23A Page 3.2-1 thru 3.2-4............... Revision 23A Page 3.2-5 thru 3.2-6.................. Revision 14 Page 3.2-7 thru 3.2-10............. Revision 23A Page 3.3-1.................................... Revision 0 Page 3.4-1.................................. Revision 13 Page 3.4-2 thru 3.4-3............... Revision 23A Page 3.4-4.................................... Revision 1 Page 3.4-5.................................... Revision 5 Page 3.4-6 thru 3.4-13.................. Revision 3 Page 3.4-14 thru 3.4-15........... Revision 23A Page 3.4-16 thru 3.4-42................ Revision 3 Page 3.4-43.................................. Revision 9 Page 3.4-44.............................. Revision 24B Page 3.4-45 thru 3.4-46........... Revision 23A Page 3.4-47.............................. Revision 24B Page 3.4-48.................................. Revision 9 Page 3.4-49 thru 3.4-50........... Revision 23A Page 3.4-51.............................. Revision 24B Page 3.4-52 thru 3.4-55........... Revision 23A Page 3.4-56 thru 3.4-57................ Revision 9 Page 3.4-58 thru 3.4-59............ Revision 24B Page 3.4-60 thru 3.4-62........... Revision 23A Page 3.4-63.............................. Revision 24B Page 3.4-64................................ Revision 14

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C List of Effective Pages (contd)

Page 2 of 9 Page 3.4-65 thru 3.4-80........... Revision 23A Page 3.5-1 thru 3.5-2............... Revision 23A Page 3.5-3 thru 3.5-4.................... Revision 9 Page 3.5-5.................................... Revision 6 Page 3.5-6.................................. Revision 13 Page 3.5-7 thru 3.5-9.................... Revision 6 Page 3.5-10................................ Revision 13 Page 3.5-11 thru 3.5-13................ Revision 6 Page 3.5-14................................ Revision 13 Page 3.5-15................................ Revision 11 Page 3.5-16 thru 3.5-17................ Revision 6 Page 3.5-18................................ Revision 13 Page 3.5-19.................................. Revision 6 Page 3.5-20................................ Revision 13 Page 3.5-21 thru 3.5-26................ Revision 6 Page 3.5-27............................. Revision 23A Page 3.5-28 thru 3.5-30................ Revision 8 Page 3.6-1 thru 3.6-2.................. Revision 13 Page 3.6-3 thru 3.6-4.................... Revision 9 Page 3.6-5 thru 3.6-19.................. Revision 6 Page 3.7-1............................... Revision 23A Page 3.7-2.................................... Revision 9 Page 3.7-3 thru 3.7-5.................. Revision 13 Page 3.7-6.................................... Revision 6 Page 3.7-7.................................. Revision 13 Page 3.7-8 thru 3.7-9.................... Revision 6 Page 3.7-10................................ Revision 13 Page 3.7-11................................ Revision 11 Page 3.7-12 thru 3.7-13................ Revision 6 Page 3.7-14................................ Revision 13 Page 3.7-15.................................. Revision 6 Page 3.7-16................................ Revision 13 Page 3.7-17 thru 3.7-21................ Revision 6 Page 3.7-22................................ Revision 13 Page 3.7-23 thru 3.7-25................ Revision 6 Page 3.7-26................................ Revision 13 Page 3.7-27.................................. Revision 6 Page 3.7-28 thru 3.7-30.............. Revision 13 Page 3.7-31.................................. Revision 6 Page 3.7-32................................ Revision 13 Page 3.7-33.................................. Revision 6 Page 3.7-34................................ Revision 13 Page 3.7-35 thru 3.7-37................ Revision 6 Page 3.7-38 thru 3.7-40.............. Revision 13 Page 3.7-41 thru 3.7-46................ Revision 6 Page 3.7-47 thru 3.7-56.............. Revision 13 Page 3.7-57............................. Revision 23A Page 3.7-58 thru 3.7-59.............. Revision 11 Page 3.7-60 thru 3.7-61................ Revision 8 Page 3.7-62 thru 3.7-64................ Revision 6 Page 3.7-65.................................. Revision 8 Page 3.7-66.................................. Revision 6 Page 3.7-67 thru 3.7-68................ Revision 8 Page 3.7-69.................................. Revision 6 Page 3.7-70 thru 3.7-72................ Revision 8 Page 3.7-73 thru 3.7-80................ Revision 6 Page 3.7-75............................. Revision 23A Page 3.7-76.................................. Revision 6 Page 3.7-77 thru 3.7-80................ Revision 8 Page 3.7-81.................................. Revision 6 Page 3.8-1 thru 3.8-10.................. Revision 0 Page 3.9-1.................................... Revision 0 Page 3.9-2.................................... Revision 1 Page 3.9-3.................................... Revision 9 Page 3.10-1.................................. Revision 0 Page 3.10.1-1............................... Revision 5 Page 3.10.1-2 thru 3.10.1-4.......... Revision 2 Page 3.10.1-5............................... Revision 1 Page 3.10.1-6 thru 3.10.1-32........ Revision 5 Page 3.10.2-1 thru 3.10.2-26........ Revision 4 Page 3.10.2-27........................... Revision 14 Page 3.10.2-28........................ Revision 23A Page 3.10.2-29 thru 3.10.2-68.... Revision 14 Page 3.10.3-1 thru 3.10.3-2.......... Revision 8 Page 3.10.3-3............................... Revision 0 Page 3.10.3-4 thru 3.10.3-23........ Revision 1 Page 3.10.3-24............................. Revision 8 Page 3.10.3-25 thru 3.10.3-38...... Revision 1 Page 3.10.4-1 thru 3.10.4-2.......... Revision 1 Page 3.10.4-3 thru 3.10.4-9.......... Revision 0 Page 3.10.4-10............................. Revision 1 Page 3.10.4-11 thru 3.10.4-14...... Revision 0 Page 3.10.5-1............................... Revision 1 Page 3.10.5-2............................... Revision 2 Page 3.10.5-3............................. Revision 11 Page 3.10.5-4 thru 3.10.5-5..... Revision 23A Page 3.10.5-6 thru 3.10.5-9........ Revision 14 Page 3.10.5-10........................ Revision 23A

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C List of Effective Pages (contd)

Page 3 of 9 Page 3.10.5-11 thru 3.10.5-13.... Revision 14 Page 3.10.6-1 thru 3.10.6-2.......... Revision 5 Page 3.10.6-3............................... Revision 4 Page 3.10.6-4 thru 3.10.6-6.......... Revision 5 Page 3.10.6-7 thru 3.10.6-10........ Revision 4 Page 3.10.6-11 thru 3.10.6-13...... Revision 2 Page 3.10.6.14 thru 3.10.6-16...... Revision 4 Page 3.10.6-17 thru 3.10.6-18...... Revision 2 Page 3.10.6-19............................. Revision 4 Page 3.10.6-20 thru 3.10.6-21...... Revision 2 Page 3.10.6-22 thru 3.10.6-34...... Revision 4 Page 3.10.7-1 thru 3.10.7-2.......... Revision 0 Page 3.10.8-1............................... Revision 4 Page 3.10.8-2............................... Revision 2 Page 3.10.8-3 thru 3.10.8-8.......... Revision 0 Page 3.10.9-1............................... Revision 6 Page 3.10.9-2............................... Revision 4 Page 3.10.9-3 thru 3.10.9-11........ Revision 0 Page 3.10.10-1 thru 3.10.10-8...... Revision 5 Page 3.11-1................................ Revision 11 Page 3.11.1-1 thru 3.11.1-9........ Revision 11 Page 3.11.2-1 thru 3.11.2-5........ Revision 11 Page 3.11.3-1............................. Revision 11 Page 3.11.4-1 thru 3.11.4-15...... Revision 11 Page 3.12-1................................ Revision 13 Page 3.12.1-1 thru 3.12.1-7........ Revision 13 Page 3.12.2-1 thru 3.12.2-4........ Revision 13 Page 3.12.3-1 thru 3.12.3-3........ Revision 13 Page 3.12.4-1 thru 3.12.4-23...... Revision 13 Page 3.13-1................................ Revision 14 Page 3.13.1-1............................. Revision 14 Page 3.13.2-1 thru 3.13.2-24...... Revision 14 Page 3.13.3-1 thru 3.13.3-27...... Revision 14 Page 3.13.3-28........................ Revision 23A Page 3.14.1.............................. Revision 23A Page 3.14.1-1 thru 3.14.1-6..... Revision 23A Page 3.14.2-1 thru 3.14.2-2..... Revision 23A Page 3.14.3-1 thru 3.14.3-16... Revision 23A Page 3.14.3-17......................... Revision 24C Page 3.14.3-18 thru 3.14.3-20. Revision 23A Chapter 4 Page 4-i........................................ Revision 9 Page 4-ii.................................. Revision 23A Page 4-iii...................................... Revision 9 Page 4-iv thru 4-xi.................. Revision 23A Page 4-1....................................... Revision 0 Page 4.1-1 thru 4.1-4.................. Revision 13 Page 4.1-5............................... Revision 23A Page 4.1-6................................. Revision 14 Page 4.1-7.................................. Revision 13 Page 4.1-8.................................... Revision 7 Page 4.2-1.................................... Revision 0 Page 4.3-1.................................. Revision 13 Page 4.4-1 thru 4.4-2............... Revision 23A Page 4.4-3.................................... Revision 5 Page 4.4-4 thru 4.4-7.................... Revision 8 Page 4.4-8 thru 4.4-10.................. Revision 5 Page 4.4-11 thru 4.4-20................ Revision 7 Page 4.4-21.................................. Revision 9 Page 4.4-22 thru 4.4-25................ Revision 7 Page 4.4-26 thru 4.4-27................ Revision 8 Page 4.4-28 thru 4.4-30.............. Revision 12 Page 4.4-31.................................. Revision 7 Page 4.4-32.................................. Revision 9 Page 4.4-33................................ Revision 12 Page 4.4-34 thru 4.4-35................ Revision 8 Page 4.4-36................................ Revision 12 Page 4.4-37 thru 4.4-62................ Revision 7 Page 4.4-63................................ Revision 12 Page 4.4-64.................................. Revision 8 Page 4.4-65.................................. Revision 7 Page 4.4-66 thru 4.4-70.............. Revision 12 Page 4.4-71.................................. Revision 7 Page 4.5-1............................... Revision 23A Page 4.5-2.................................. Revision 11 Page 4.5-3.................................. Revision 13 Page 4.5-4.................................... Revision 9 Page 4.6-1 thru 4.6-2............... Revision 23A Page 4.6-3 thru 4.6-4.................... Revision 7 Page 4.7-1............................... Revision 23A Page 4.7-2.................................... Revision 9 Page 4.8-1.................................... Revision 0 Page 4.8.1-1 thru 4.8.1-10............ Revision 0 Page 4.8.2-1 thru 4.8.2-8.............. Revision 0 Page 4.8.3-1 thru 4.8.3-2.............. Revision 0 Page 4.8.3-3 thru 4.8.3-4.............. Revision 1

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C List of Effective Pages (contd)

Page 4 of 9 Page 4.8.3-5................................. Revision 0 Page 4.8.3-6 thru 4.8.3-9.............. Revision 1 Page 4.9-1.................................... Revision 9 Page 4.9.1-1............................... Revision 10 Page 4.9.2-1 thru 4.9.2-3............ Revision 10 Page 4.9.2-4............................... Revision 12 Page 4.9.3-1................................. Revision 8 Page 4.9.3-2............................... Revision 10 Page 4.9.3-3................................. Revision 3 Page 4.9.4-1................................. Revision 8 Page 4.10-1 thru 4.10-2........... Revision 23A Page 4.10.1-1.......................... Revision 23A Page 4.10.1-2............................... Revision 9 Page 4.10.1-3............................. Revision 12 Page 4.10.1-4............................... Revision 9 Page 4.10.1-5.......................... Revision 23A Page 4.10.2-1 thru 4.10.2-2..... Revision 23A Page 4.10.3-1.......................... Revision 23A Page 4.10.3-2........................... Revision 23E Page 4.10.3-3.......................... Revision 23A Page 4.10.4-1 thru 4.10.4-2...... Revision 23E Page 4.10.4-3.......................... Revision 23A Page 4.10.4-4 thru 4.10.4-6...... Revision 23E Page 4.11-1................................ Revision 11 Page 4.11.1-1 thru 4.11.1-8........ Revision 11 Page 4.11.2-1 thru 4.11.2-2........ Revision 13 Page 4.11.3-1............................. Revision 13 Page 4.11.4-1 thru 4.11.4-2........ Revision 13 Page 4.11.4-3 thru 4.11.4-20...... Revision 11 Page 4.11.4-21........................... Revision 13 Page 4.11.4-22........................... Revision 12 Page 4.12-1................................ Revision 13 Page 4.12.1-1 thru 4.12.1-2........ Revision 13 Page 4.12.2-1............................. Revision 13 Page 4.12.3-1............................. Revision 13 Page 4.12.4-1 thru 4.12.4-2........ Revision 13 Page 4.12.5-1............................. Revision 13 Page 4.12.6-1 thru 4.12.6-2........ Revision 13 Page 4.13-1................................ Revision 14 Page 4.13.1-1 thru 4.13.1-49...... Revision 14 Page 4.13.2-1 thru 4.13.2-12...... Revision 14 Page 4.13.3-1 thru 4.13.3-2........ Revision 14 Page 4.13.4-1 thru 4.13.4-3........ Revision 14 Page 4.13.5-1............................. Revision 14 Page 4.14-1............................. Revision 23A Page 4.14.1-1 thru 4.14.1-2..... Revision 23A Page 4.14.1-3 thru 4.14.1-4...... Revision 24B Page 4.14.1-5 thru 4.14.1-46... Revision 23A Page 4.14.2-1 thru 4.14.2-12... Revision 23A Page 4.14.3-1 thru 4.14.3-2..... Revision 23A Page 4.14.4-1 thru 4.14.4-3..... Revision 23A Page 4.14.5-1.......................... Revision 23A Chapter 5 Page 5-i...................................... Revision 14 Page 5-iii................................. Revision 23A Page 5-iv.................................. Revision 23E Page 5-v thru 5-xii.................. Revision 23A Page 5-xiii................................ Revision 23E Page 5-xiv thru 5-xix.............. Revision 23A Page 5-1 thru 5-2..................... Revision 23A Page 5.1-1 thru 5.1-7............... Revision 23A Page 5.1-8.................................... Revision 5 Page 5.1-9 thru 5.1-10.................. Revision 8 Page 5.1-11 thru 5.1-12................ Revision 5 Page 5.2-1 thru 5.2-6............... Revision 23A Page 5.2-7 thru 5.2-12.................. Revision 5 Page 5.2-13 thru 5.2-17........... Revision 23A Page 5.3-1............................... Revision 23A Page 5.3-2.................................... Revision 5 Page 5.3-3.................................... Revision 0 Page 5.3-4 thru 5.3-5.................... Revision 1 Page 5.3-6.................................... Revision 0 Page 5.4-1 thru 5.4-5.................... Revision 0 Page 5.5-1.................................... Revision 0 Page 5.5-2 thru 5.5-3............... Revision 23A Page 5.5-4................................ Revision 24C Page 5.5-5 thru 5.5-6............... Revision 23A Page 5.5-7 thru 5.5-10.................. Revision 1 Page 5.5-11 thru 5.5-13................ Revision 0 Page 5.5-14.................................. Revision 8 Page 5.5-15.................................. Revision 1 Page 5.5-16 thru 5.5-20................ Revision 5 Page 5.6-1 thru 5.6-5............... Revision 23A Page 5.6-6.................................... Revision 5 Page 5.6-7.................................... Revision 1 Page 5.6-8.................................... Revision 5 Page 5.6-9.................................... Revision 1

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C List of Effective Pages (contd)

Page 5 of 9 Page 5.6-10 thru 5.6-13................ Revision 0 Page 5.7-1 thru 5.7-2.................... Revision 0 Page 5.7-3............................... Revision 23A Page 5.8-1.................................... Revision 0 Page 5.8.1-1 thru 5.8.1-4.............. Revision 0 Page 5.8.2-1................................. Revision 0 Page 5.8.2-2................................. Revision 1 Page 5.8.2-3............................ Revision 23A Page 5.8.2-4 thru 5.8.2-5.............. Revision 1 Page 5.8.2-6................................. Revision 0 Page 5.8.2-7 thru 5.8.2-13............ Revision 1 Page 5.8.3-1................................. Revision 5 Page 5.8.3-2 thru 5.8.3-3......... Revision 23A Page 5.8.3-4................................. Revision 8 Page 5.8.3-5................................. Revision 5 Page 5.8.3-6 thru 5.8.3-17............ Revision 1 Page 5.8.3-18 thru 5.8.3-19.......... Revision 5 Page 5.8.3-20 thru 5.8.3-23.......... Revision 1 Page 5.8.3-24 thru 5.8.3-31.......... Revision 5 Page 5.8.3-32............................... Revision 8 Page 5.8.3-33............................... Revision 5 Page 5.8.4-1 thru 5.8.4-4......... Revision 23A Page 5.8.4-5 thru 5.8.4-17............ Revision 0 Page 5.8.4-18 thru 5.8.4-29.......... Revision 9 Page 5.8.4-30............................... Revision 0 Page 5.8.5-1................................. Revision 5 Page 5.8.5-2 thru 5.8.5-3.............. Revision 7 Page 5.8.5-4................................. Revision 8 Page 5.8.5-5 thru 5.8.5-6.............. Revision 5 Page 5.8.5-7................................. Revision 0 Page 5.8.5-8 thru 5.8.5-9.............. Revision 8 Page 5.8.6-1................................. Revision 7 Page 5.8.6-2 thru 5.8.6-6.............. Revision 5 Page 5.8.6-7................................. Revision 7 Page 5.8.7-1................................. Revision 7 Page 5.8.7-2............................ Revision 23A Page 5.8.7-3................................. Revision 0 Page 5.8.7-4................................. Revision 8 Page 5.8.7-5................................. Revision 7 Page 5.8.8-1................................. Revision 8 Page 5.8.8-2 thru 5.8.8-4.............. Revision 0 Page 5.8.8-5 thru 5.8.8-12............ Revision 1 Page 5.8.8-13 thru 5.8.8-23.......... Revision 0 Page 5.8.8-24 thru 5.8.8-34.......... Revision 1 Page 5.8.8-35 thru 5.8.8-56.......... Revision 0 Page 5.8.8-57 thru 5.8.8-65.......... Revision 5 Page 5.8.8-66 thru 5.8.8-79.......... Revision 8 Page 5.8.8-80 thru 5.8.8-115........ Revision 5 Page 5.8.9-1............................ Revision 23A Page 5.8.9-2................................. Revision 0 Page 5.8.9-3 thru 5.8.9-6.............. Revision 9 Page 5.8.9-7 thru 5.8.9-28....... Revision 23A Page 5.8.10-1 thru 5.8.10-5.......... Revision 0 Page 5.8.11-1 thru 5.8.11-3.......... Revision 1 Page 5.8.12-1............................... Revision 8 Page 5.8.12-2............................... Revision 5 Page 5.8.12-3............................. Revision 11 Page 5.8.12-4 thru 5.8.12-16........ Revision 5 Page 5.8.13-1............................... Revision 5 Page 5.8.13-2 thru 5.8.13-3........ Revision 11 Page 5.8.13-4 thru 5.8.13-6.......... Revision 5 Page 5.9-1.................................... Revision 7 Page 5.9.1-1................................. Revision 7 Page 5.9.2-1................................. Revision 7 Page 5.9.3-1............................ Revision 23A Page 5.9.3-2 thru 5.9.3-5.............. Revision 7 Page 5.9.4-1 thru 5.9.4-2.............. Revision 7 Page 5.9.5-1 thru 5.9.5-2.............. Revision 7 Page 5.9.6-1............................ Revision 23A Page 5.9.6-2 thru 5.9.6-4.............. Revision 7 Page 5.9.7-1 thru 5.9.7-23............ Revision 7 Page 5.9.8-1 thru 5.9.8-2......... Revision 23A Page 5.9.8-3 thru 5.9.8-28............ Revision 9 Page 5.9.9-1 thru 5.9.9-6.............. Revision 7 Page 5.10-1.................................. Revision 7 Page 5.10.1-1............................... Revision 7 Page 5.10.2-1............................... Revision 7 Page 5.10.3-1.......................... Revision 23A Page 5.10.3-2 thru 5.10.3-3.......... Revision 7 Page 5.10.4-1............................... Revision 7 Page 5.10.5-1 thru 5.10.5-4.......... Revision 7 Page 5.10.6-1 thru 5.10.6-2..... Revision 23A Page 5.11-1.................................. Revision 9 Page 5.11.1-1.......................... Revision 23A Page 5.11.1-2 thru 5.11.1-3.......... Revision 9 Page 5.11.1-4 thru 5.11.1-6..... Revision 23A Page 5.11.2-1............................... Revision 9 Page 5.11.3-1 thru 5.11.3-4..... Revision 23A

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C List of Effective Pages (contd)

Page 6 of 9 Page 5.11.4-1 thru 5.11.4-3.......... Revision 9 Page 5.11.4-4.......................... Revision 23A Page 5.11.4-5 thru 5.11.4-6.......... Revision 9 Page 5.11.4-7............................. Revision 11 Page 5.11.4-8............................... Revision 9 Page 5.11.5-1 thru 5.11.5-2.......... Revision 9 Page 5.11.6-1............................... Revision 9 Page 5.11.7-1 thru 5.11.7-2..... Revision 23A Page 5.11.8-1 thru 5.11.8-11... Revision 23A Page 5.11.8-3............................ Revision 11 Page 5.11.8-4 thru 5.11.8-6.......... Revision 9 Page 5.11.8-7............................. Revision 11 Page 5.11.8-8 thru 5.11.8-11........ Revision 9 Page 5.11.9-1............................... Revision 9 Page 5.11.10-1 thru 5.11.10-9. Revision 23A Page 5.11.10-10.......................... Revision 9 Page 5.11.11-1 thru 5.11.11-43Revision 23A Page 5.12-1................................ Revision 11 Page 5.12.1-1............................. Revision 11 Page 5.12.2-1 thru 5.12.2-3........ Revision 11 Page 5.12.3-1............................. Revision 11 Page 5.12.4-1 thru 5.12.4-8........ Revision 11 Page 5.12.5-1 thru 5.12.5-3........ Revision 11 Page 5.12.6-1 thru 5.1.6-4.......... Revision 11 Page 5.12.7-1 thru 5.1.7-4.......... Revision 11 Page 5.12.8-1............................. Revision 11 Page 5.12.9-1............................. Revision 11 Page 5.12.10-1........................... Revision 11 Page 5.12.11-1........................... Revision 11 Page 5.13.1-1 thru 5.13.1-3........ Revision 13 Page 5.13.2-1............................. Revision 13 Page 5.13.3-1............................. Revision 13 Page 5.13.4-1 thru 5.13.4-13...... Revision 13 Page 5.13.5-1 thru 5.13.5-2........ Revision 13 Page 5.13.6-1............................. Revision 13 Page 5.13.7-1.......................... Revision 23A Page 5.13.8-1 thru 5.13.8-7........ Revision 13 Page 5.14-1 thru 5.14-2............ Revision 24B Page 5.14.1-1............................. Revision 14 Page 5.14.2-1.......................... Revision 23A Page 5.14.2-2 thru 5.14.2-4........ Revision 14 Page 5.14.3-1.......................... Revision 23A Page 5.14.4-1 thru 5.14.4-2..... Revision 23A Page 5.14.4-3 thru 5.14.4-7........ Revision 14 Page 5.14.4-8 thru 5.14.4-11... Revision 23A Page 5.14.5-1.......................... Revision 23A Page 5.14.6-1 thru 5.14.6-11... Revision 23A Page 5.14.7-1.......................... Revision 23A Page 5.14.8-1 thru 5.14.8-2..... Revision 23A Page 5.14.9-1 thru 5.14.9-4..... Revision 23A Page 5.15-1................................ Revision 14 Page 5.15.1-1 thru 5.15.1-2........ Revision 14 Page 5.15.2-1 thru 5.15.2-3........ Revision 14 Page 5.15.3-1 thru 5.15.3-3........ Revision 14 Page 5.16-1............................. Revision 23A Page 5.16.1-1............................. Revision 14 Page 5.16.2-1.......................... Revision 23A Page 5.16.3-1............................. Revision 14 Page 5.16.4-1 thru 5.16.4-2..... Revision 23A Page 5.16.4-3 thru 5.16.4-7........ Revision 14 Page 5.16.4-8 thru 5.16.4-10... Revision 23A Page 5.16.5-1 thru 5.16.5-2..... Revision 23A Page 5.16.5-3............................. Revision 14 Page 5.16.6-1.......................... Revision 23A Page 5.16.7-1.......................... Revision 23A Page 5.16.8-1 thru 5.16.8-2..... Revision 23A Page 5.17-1.............................. Revision 23E Page 5.17.1-1 thru 5.17.1-2...... Revision 23E Page 5.17.2-1 thru 5.17.2-3...... Revision 23E Page 5.17.3-1 thru 5.17.3-2...... Revision 23E Chapter 6 Page 6-i thru 6-vi....................... Revision 14 Page 6-1....................................... Revision 0 Page 6.1-1.................................. Revision 14 Page 6.1-2............................... Revision 23A Page 6.1-3................................ Revision 23E Page 6.1-4 thru 6.1-9.................. Revision 14 Page 6.1-10 thru 6.1-11............ Revision 23E Page 6.1-12 thru 6.1-18.............. Revision 14 Page 6.1-19.............................. Revision 23E Page 6.2-1.................................... Revision 5 Page 6.2-2.................................... Revision 0 Page 6.2-3................................ Revision 23E Page 6.2-4 thru 6.2-5.................... Revision 0 Page 6.3-1 thru 6.3-3.................. Revision 14 Page 6.3-4 thru 6.3-8.................... Revision 0 Page 6.3-9.................................... Revision 2

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C List of Effective Pages (contd)

Page 7 of 9 Page 6.4-1.................................... Revision 0 Page 6.4-2.................................... Revision 2 Page 6.4-3.................................... Revision 5 Page 6.4-4 thru 6.4-7.................. Revision 14 Page 6.4-8 thru 6.4-9................ Revision 23E Page 6.4-10.................................. Revision 5 Page 6.4-11.............................. Revision 23E Page 6.4-12................................ Revision 11 Page 6.5-1.................................. Revision 11 Page 6.5-2.................................... Revision 0 Page 6.5-3 thru 6.5-4.................. Revision 11 Page 6.5-5 thru 6.5-6.................... Revision 0 Page 6.5-7 thru 6.5-8.................. Revision 11 Page 6.6-1................................ Revision 23E Page 6.7-1.................................... Revision 0 Page 6.7.1-1 thru 6.7.1-2.............. Revision 5 Page 6.7.1-3................................. Revision 0 Page 6.7.1-4................................. Revision 2 Page 6.7.1-5 thru 6.7.1-37............ Revision 0 Page 6.7.2-1 thru 6.7.2-3.......... Revision 23E Page 6.7.2-4................................. Revision 5 Page 6.7.2-5............................... Revision 11 Page 6.7.3-1............................. Revision 23E Page 6.7.3-2 thru 6.7.3-22............ Revision 5 Page 6.7.3-23 thru 6.7.3-25...... Revision 23E Page 6.7.3-26............................... Revision 5 Page 6.7.3-27........................... Revision 23E Page 6.7.4-1 thru 6.7.4-26.......... Revision 14 Page 6.7.5-1............................... Revision 14 Page 6.7.5-2 thru 6.7.5-7.............. Revision 0 Page 6.7.6-1 thru 6.7.6-4............ Revision 14 Page 6.7.6-5................................. Revision 2 Page 6.7.6-6 thru 6.7.6-12.......... Revision 14 Page 6.7.6-13 thru 6.7.6-16.......... Revision 2 Page 6.7.6-17 thru 6.7.6-23........ Revision 14 Page 6.7.6-24............................... Revision 7 Page 6.7.6-25............................. Revision 14 Page 6.7.6-26............................... Revision 2 Page 6.7.6-27 thru 6.7.6-30........ Revision 14 Page 6.7.7-1 thru 6.7.7-34.......... Revision 11 Page 6.7.8-1 thru 6.7.8-3.............. Revision 5 Page 6.7.8-4................................. Revision 7 Page 6.7.8-5 thru 6.7.8-6.............. Revision 5 Page 6.7.8-7 thru 6.7.8-82.......... Revision 11 Page 6.7.8-83........................... Revision 23E Page 6.7.8-84 thru 6.7.8-86........ Revision 11 Page 6.7.8-87 thru 6.7.8-88...... Revision 23E Page 6.7.8-89 thru 6.7.8-90........ Revision 11 Page 6.7.8-91........................... Revision 23E Page 6.7.8-92 thru 6.7.8-93........ Revision 11 Page 6.7.9-1 thru 6.7.9-9............ Revision 14 Page 6.7.10-1 thru 6.7.10-2........ Revision 14 Chapter 7 Page 7-i....................................... Revision 5 Page 7-1....................................... Revision 0 Page 7.1-1 thru 7.1-2.................... Revision 5 Page 7.1-3 thru 7.1-4.................... Revision 7 Page 7.1-5.................................... Revision 5 Page 7.1-6.................................... Revision 2 Page 7.2-1.................................... Revision 8 Page 7.2-2.................................... Revision 0 Page 7.3-1.................................... Revision 0 Page 7.4-1.................................... Revision 0 Chapter 8 Page 8-i...................................... Revision 13 Page 8-ii................................... Revision 24B Page 8-1....................................... Revision 0 Page 8.1-1 thru 8.1-4.................. Revision 13 Page 8.2-1.................................. Revision 13 Page 8.3-1.................................... Revision 5 Page 8.3-2............................... Revision 23A Page 8.3-3 thru 8.3-6.................... Revision 1 Page 8.3-7.................................. Revision 11 Page 8.3-8.................................... Revision 1 Page 8.3-9 thru 8.3-11.................. Revision 5 Page 8.3-12.............................. Revision 24B Page 8.3-13................................. Revision 5 Page 8.3-14.............................. Revision 24B Page 8.3-15 thru 8.3-17.............. Revision 11 Page 8.3-18................................ Revision 13 Page 8.3-19.............................. Revision 24B Page 8.4-1.................................. Revision 13 Page 8.5-1.................................... Revision 1 Page 8.5-2 thru 8.5-3.................. Revision 13 Page 8.6-1.................................... Revision 1 Page 8.6-2.................................... Revision 8

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C List of Effective Pages (contd)

Page 8 of 9 Page 8.6-3.................................. Revision 13 Page 8.7-1 thru 8.7-3.................. Revision 13 Page 8.8-1.................................... Revision 2 Page 8.8-2.................................... Revision 3 Page 8.8-3.................................... Revision 0 Page 8.8-4.................................... Revision 3 Page 8.9-1.................................. Revision 12 Page 8.10-1 thru 8.10-2.............. Revision 13 Page 8.10-2.................................. Revision 8 Page 8.10-3.................................. Revision 6 Page 8.10-4 thru 8.10-7.............. Revision 13 Page 8.11-1.................................. Revision 0 Page 8.11-2 thru 8.11-3.............. Revision 13 Page 8.12-1 thru 8.12-2................ Revision 0 Page 8.12-3.............................. Revision 24B Page 8.13-1.................................. Revision 8 Page 8.13-2 thru 8.13-6................ Revision 0 Page 8.13-7.................................. Revision 8 Page 8.13-8.................................. Revision 6 Page 8.13-9.................................. Revision 8 Page 8.13-10 thru 8.13-17............ Revision 6 Page 8.13-18 thru 8.13-40............ Revision 8 Page 8.13-41 thru 8.13-51.......... Revision 13 Chapter 9 Page 9-i.................................... Revision 23E Page 9-1....................................... Revision 2 Page 9-2..................................... Revision 13 Page 9.1-1 thru 9.1-20................ Revision 14 Page 9.2-1 thru 9.2-7.................. Revision 14 Page 9.2-8............................... Revision 23A Page 9.2-9 thru 9.2-16................ Revision 14 Page 9.3-1................................ Revision 23E Page 9.3-2 thru 9.3-3.................. Revision 14 Page 9.3-4 thru 9.3-5................ Revision 23E Page 9.3-6 thru 9.3-18................ Revision 14 Page 9.4-1 thru 9.4-6.................. Revision 14 Chapter 10 Page 10-i.................................. Revision 23E Page 10-1..................................... Revision 0 Page 10.1-1 thru 10.1-5.............. Revision 13 Page 10.1-6 thru 10.1-25.......... Revision 23E Page 10.2-1 thru 10.2-2.............. Revision 13 Page 10.2-3................................ Revision 14 Page 10.3-1.................................. Revision 0 Page 10.3-2.................................. Revision 1 Chapter 11 Page 11-i................................. Revision 23A Page 11-1................................... Revision 14 Page 11.1-1 thru 11.1-2................ Revision 0 Page 11.2-1............................. Revision 23A Page 11.3-1.................................. Revision 0 Page 11.3-2.............................. Revision 24C Page 11.3-3............................. Revision 23A Page 11.3-4.................................. Revision 0 Page 11.3-5................................ Revision 14 Page 11.3-6 thru 11.3-8........... Revision 23A Page 11.4-1.................................. Revision 0 Page 11.5-1.................................. Revision 0 Chapter 12 Page 12-i.................................... Revision 14 Page 12-1................................... Revision 13 Page 12.1-1 thru 12.2-2.............. Revision 13 Page 12.1-3................................ Revision 14 Page 12.1-4 thru 12.1-9.............. Revision 13 Page 12.2-1................................ Revision 13 Page 12.2-2............................. Revision 23A Page 12.2-3................................ Revision 14 Page 12.2-4 thru 12.2-5.............. Revision 13 Page 12.2-6................................ Revision 14 Page 12.2-7................................ Revision 13 Page 12.2-8............................. Revision 23A Page 12.2-9 thru 12.2-13............ Revision 13 Page 12.2-14 thru 12.2-21....... Revision 23A Page 12.3-1 thru 12.3-2................ Revision 0 Chapter 13 Page 13-i...................................... Revision 0 Page 13-1..................................... Revision 0 Page 13A-i................................... Revision 0 Page 13A-1................................... Revision 0 Page 13B-i.................................... Revision 0 Page 13B-1................................... Revision 0 Page 13C-i.................................. Revision 13 Page 13C-1................................... Revision 5

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C List of Effective Pages (contd)

Page 9 of 9 Page 13C-2 thru 13C-3.............. Revision 14 Page 13C-4 thru 13C-9................ Revision 0 Page 13C-10................................. Revision 7 Page 13C-11 thru 13C-13.......... Revision 14 Page 13C-14............................... Revision 13 Page 13C-15 thru 13C-16.......... Revision 14 Page 13C-17 thru 13C-18.......... Revision 13 Page 13C-19 thru 13C-20............ Revision 5 Page 13C-21............................... Revision 14 Page 13C-22 thru 13C-26.......... Revision 13 Page 13C-27................................. Revision 2 Chapter 14 Page 14-i...................................... Revision 0 Page 14-1 thru 14-2...................... Revision 0 Page 14.1-1 thru 14.1-7................ Revision 0 Page 14.2-1.................................. Revision 0 Chapter 15 Page 15-i...................................... Revision 0 Page 15-1..................................... Revision 0 Page 15.1-1.................................. Revision 0 Page 15.2-1 thru 15.2-4................ Revision 0 Page 15.3-1.................................. Revision 0

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C NAC International 3.14.3-17 ay

=

Wcask =

DO

=

DI

=

0.50g, vertical direction 411,000 lb, bounding weight 136 in 85.5 in A

=

(DO2 - DI2) / 4 = 8.79x103 in2 I

=

(DO4 - DI4) / 64 = 14.17x106 in4 Souter

=

2I/DO = 208x103 in3 Sinner

=

2I/DI = 331x103 in3 M

=

(w x h2) / 2 = 2.31x107 lb-in w

=

(ax x Wcask) / h = 913 lb/in h

=

225 in, bounding cask height 3.14.3.4.5 Concrete Cask Combined Stresses The load combinations described in Table 2.3-1 are used to evaluate the concrete cask for accident events of storage. The bounding stresses for all storage cask configurations are summarized in Table 3.14.3.4-1 and Table 3.14.3.4-2 for the loading combination Nos. 4, 5, 7 and 8. Loading combination No. 6 corresponds to drop accidents, 24-inch end drop and tip-over, which are evaluated in Section 3.14.3.4.6 and Section 3.14.3.4.7, respectively.

As shown in Table 3.14.3.4-1, the maximum concrete combined compressive stress is 1837 psi; therefore, the minimum compressive factor of safety (FS) for accident events is as follows.

FS =

=

= 1.45 where:

Scc = Fc = 0.7x3800 = 2660 psi ------------- Concrete compressive allowable From Section 3.14.3.4.1, the maximum tensile stress in the concrete due to the accident thermal load is 0.138 ksi. The factor of safety (FS) of concrete tensile stress is as follows.

FS =

0.213 0.138 tc t

S S =

= 1.54 where:

Stc = 0.08 x Scc = 0.08 x 2660 = 213 psi or 0.213 ksi Concrete tensile ultimate strength From Section 3.14.3.4.1, the maximum rebar tensile stress (Srb) due to accident thermal load is 22.7 ksi. The factor of safety (FS) of the rebar tensile stress is as follows.

FS =

54 22.7 rebar rb S

S

=

= 2.38

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C NAC International 5.5-4 The cask surface currents are based on the fuel type, assembly average burnup, initial enrichment, and cool time combination that produce the maximum cask radial and axial surface dose rates. In the PWR system, the source also accounts for the addition of nonfuel hardware.

Separating the TSC contents evaluation of the cask body from the site air transport exposure evaluation minimizes analysis complexity. All cask gamma source components, including the n-production in the cask, are combined into a single gamma source for the skyshine analysis.

The model includes a representation of the cask pad, soil surrounding the pad, and an air envelope (air density applied is 0.001225 g/cm3, which is the density of dry air at 20°C). The air envelope provides both an n-source as well as radiation scatter. Air density of 0.001225 g/cm3 applied in the analysis formed the basis for the development of the line beam response functions used in the NAC-CASC (SKYSHINE-III) code. Variations in the air density are permitted within the code input deck but were not utilized in the dose rate evaluations. Variations in site conditions, including expected atmospheric conditions, should be addressed per Appendix A (Chapter 13) Section 5.5 Radiation Protection Program evaluations. Detectors are spaced along the rectangular outline of the ISFSI to a maximum extent of 2,000 ft (610 m) from the center of the array or single cask. NAC-CASC detectors are located at an elevation of 3 ft relative to the bottom of the cask. To obtain a sufficiently detailed dose rate map, dose rate results were evaluated at intervals of 5 ft from 85 ft to 100 ft and at 25-ft intervals from 100 ft to 2000 ft. A detector grid spacing of less than 10 meters is sufficient to provide the generic information necessary to determine system array or single cask effects on site boundary dose.

The dose rate data plotted in Section 5.8.3-5 for PWR and BWR systems demonstrates a smooth drop off of dose rate (or yearly dose) that could be fit with a larger detector spacing than that employed in this evaluation.

An ISFSI containing a significant number of casks may be surrounded by a berm or wall structure to reduce offsite doses. The model generated here, conservatively, does not consider any other shielding components with the exception of the other casks on the pad.

This chapter contains an alternative method of evaluation (MOE) for site boundary evaluations.

The alternative described in Section 5.14.6 applies single cask model generated radial and top axial surface source file(s) (MCNP surface source write feature) to the previously described array configuration via the MCNP surface source read feature.

5.5.4 Offsite Particulate and Gas Release The TSC is welded closed using controlled welding processes to ensure that the TSC is in a configuration where no credible leakage of the TSCs radionuclide contents can occur. Since the

MAGNASTOR System FSAR December 2024 Docket No. 72-1031 Revision 24C NAC International 11.3-2 Area dose rates are assigned based on the orientation of the worker(s) with respect to the source for a given operational task or sequence. Exposure estimates for the PWR and BWR systems are shown in Table 11.3-1 and Table 11.3-2. The number of individual tasks required for loading and transfer of the TSCs is collapsed to eight groups for this presentation. Dose rates shown are time-averaged values across the individual subtasks. Activities 7 and 8 of Table 11.3-1 and Table 11.3-2 include a crane operator who is considered to be outside of the radiation zone around the cask. Exposures due to loading operations are based on design basis casks conservatively loaded with 37 kW PWR and 35 kW BWR heat loads. Because the PWR exposures are based on a 37 kW cask heat load and a hybrid CC1/CC2 model and MTC1, they bound exposures calculated at 35.5 kW for any of the three concrete casks and either of the transfer casks. Similarly, PWR exposures presented for undamaged fuel bound those of damaged fuel due to the negligible contribution from damaged fuel to cask surface dose rates near the top of the cask, which is the predominant exposure location for accumulation of occupational dose.

Estimated dose for loading the high heat LMTC is evaluated using the same method and operations which produce Table 11.3-1 and Table 11.3-2, with credit taken for recent system loading experience. Exposure estimates for the PWR and BWR high heat and ultra-high heat LMTC systems are shown in Table 11.3-3. Exposures due to high heat LMTC loading operations are based on the uniform loading patterns (PWR Pattern I outlined in Section 5.14.4 and BWR Pattern A outlined in Section 5.16.4) which conservatively model higher than allowable total cask heat load. The ultra-high heat exposures are based on preferential loading pattern results. Estimated dose exposures are shown for both the maximum 4-inch and minimum 2.5-inch radial lead shield. The estimated dose exposures envelop the 37-assembly undamaged and damaged fuel PWR baskets as well as the 89-assembly undamaged BWR and 81-assembly damaged fuel BWR baskets.

11.3.2 Estimated Dose Due to Routine Operations Once the MAGNASTOR is in storage at the ISFSI, limited ongoing maintenance and surveillance will be required. The annual dose evaluations presented herein consider the tasks that are anticipated to be representative of an operational facility. Exposure due to certain events, such as clearing the material blocking the air vents, is taken into account.

Routine operations may include the following.

An optional daily electronic measurement of ambient air and outlet air temperatures for each TSC in service. Outlet temperature measurements are recorded at a location away from the cask array, and operators are not expected to incur dose as a result of the temperature measurement.