ML20128J307

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Attachment 13: HI-STORM 100 CoC Appendix a Proposed Changed Pages
ML20128J307
Person / Time
Site: Holtec, Consolidated Interim Storage Facility
Issue date: 04/28/2020
From:
Holtec
To:
Office of Nuclear Material Safety and Safeguards
Shared Package
ML20128J292 List:
References
5014896
Download: ML20128J307 (3)


Text

TABLE OF CONTENTS 1.0 USE AND APPLICATION ............................................................................... 1.1-1 1.1 Definitions ............................................................................................ 1.1-1 1.2 Logical Connectors .............................................................................. 1.2-1 1.3 Completion Times ................................................................................ 1.3-1 1.4 Frequency ............................................................................................ 1.4-1 2.0 NOT USED ..................................................................................................... 2.0-1 3.0 LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY ............... 3.0-1 3.0 SURVEILLANCE REQUIREMENT (SR) APPLICABILITY ............................. 3.0-2 3.1 SFSC INTEGRITY ............................................................................ 3.1.1-1 3.1.1 Multi-Purpose Canister (MPC) ............................................... 3.1.1-1 3.1.2 SFSC Heat Removal System ................................................. 3.1.2-1 3.1.3 MPC Cavity Reflooding .......................................................... 3.1.3-1 3.1.4 Supplemental Cooling System ............................................... 3.1.4-1 3.2 SFSC RADIATION PROTECTION ................................................... 3.2.1-1 3.2.1 Deleted................................................................................... 3.2.1-1 3.2.2 TRANSFER CASK Surface Contamination ............................ 3.2.2-2 3.2.3 Deleted................................................................................... 3.2.3-1 3.3 SFSC CRITICALITY CONTROL ....................................................... 3.3.1-1 3.3.1 Boron Concentration .............................................................. 3.3.1-1 Table 3-1 MPC Cavity Drying Limits .................................................................... 3.4-1 Table 3-2 MPC Helium Backfill Limits .................................................................. 3.4-2 Table 3-3 Regionalized Storage Cell Heat Load Limits ....................... ..3.4-3 Table 3-4 Uniform Storage Cell Heat Load Limits.......3.4-3 Table 3-5 Completion Time for Actions to Restore SFSC Heat Removal System Operable.........3.4-4 4.0 NOT USED ....................................................................... 4.0-1 5.0 ADMINISTRATIVE CONTROLS.................................................................... 5.0-1 5.1 Deleted ................................................................................................ 5.0-1 5.2 Deleted ................................................................................................ 5.0-1 5.3 Deleted ................................................................................................ 5.0-1 5.4 Radioactive Effluent Control Program .................................................. 5.0-1 5.5 Cask Transport Evaluation Program .................................................... 5.0-2 5.6 Deleted ................................................................................................ 5.0-4 5.7 Radiation Protection Program .............................................................. 5.0-5 5.7 Fabrication Helium Leak Test .............................................................. 5.0-8 Certificate of Compliance No. 1014 Amendment No. 15 Appendix A i

SFSC Heat Removal System 3.1.2 3.1 SFSC INTEGRITY 3.1.1 Multi-Purpose Canister (MPC)

LCO 3.1.1 The MPC shall be dry and helium filled.

Table 3-1 provides decay heat and burnup limits for forced helium dehydration (FHD) and vacuum drying. FHD is not subject to time limits. Vacuum drying of MPCs may be subject to time limits, from the end of bulk water removal until the start of helium backfill, as shown in Table 3-1.

APPLICABILITY: During TRANSPORT OPERATIONS and STORAGE OPERATIONS.

ACTIONS


NOTES---------------------------------------------------------

1. Separate Condition entry is allowed for each MPC.
2. MPC helium leak rate limit for cover plate base metal listed in Condition D and SR 3.1.1.3, is not applicable to casks that were loaded to Amendments 2 through 7.

COMPLETION CONDITION REQUIRED ACTION TIME A. MPC cavity vacuum A.1 Perform an engineering 7 days drying pressure or evaluation to determine the demoisturizer exit gas quantity of moisture left in temperature limit not the MPC.

met.

AND A.2 Develop and initiate 30 days corrective actions necessary to return the MPC to compliance with Table 3-1.

Certificate of Compliance No. 1014 Amendment No. 15 Appendix A 3.1.2-1

Programs 5.0 ADMINISTRATIVE CONTROLS AND PROGRAMS 5.8 Fabrication Helium Leak Test At completion of welding the MPC shell to baseplate, an MPC confinement weld helium leak test shall be performed using a helium mass spectrometer. This test shall include the base metals of the MPC shell and baseplate. A helium leak test shall also be performed on the base metal of the fabricated MPC lid. The confinement boundary leakage rate tests shall be performed in accordance with ANSI N14.5 to leaktight criteria. If a leakage rate exceeding the acceptance criteria is detected, then the area of leakage shall be determined and the area repaired per ASME Code Section III, Subsection NB requirements. Re-testing shall be performed until the leakage rate acceptance criterion is met.

Casks initially loaded to Amendments No. 2 through 7 must meet the following:

  • Casks fabricated on or after July 1, 2009 a fabrication helium leak test at completion of the welding of the MPC shell to baseplate must be performed in accordance with the above requirements.
  • Casks loaded before July 1, 2009 must meet the fabrication helium leak test requirements of the lid base metal of the amendment to which they were originally loaded.
  • Casks loaded before July 1, 2009 do not meet the above fabrication helium leak test requirements after MPC shell to baseplate welding. These casks may be upgraded to Amendment 15.

Certificate of Compliance No. 1014 Amendment No. 15 Appendix A 5.0-8