ML20028D892

RAIs and Responses, Safety Analysis Report (Sar), Chapter 15, Materials Evaluation

ML20028D892
Person / Time
Site:	Consolidated Interim Storage Facility
Issue date:	01/22/2020
From:	Consolidated Interim Storage Facility
To:	Office of Nuclear Material Safety and Safeguards
Shared Package
ML20028D890	List: ML20028D891 ML20028D892 ML20028D893
References
E-55866, CAC 001028, EPID L-2017-NEW-0002, RAI NP-15-7
Download: ML20028D892 (1)

Text

RAIs and Responses to E-55866 Safety Analysis Report (SAR), Chapter 15, Materials Evaluation" RAI NP-15-7:

Specify the Quality Category of the coatings for the NAC-MPC vertical concrete cask and transfer cask identified in WCS CISF SAR Appendix E Sections E.7.1.10 and E.7.2.10.

The NRC staff note that the NAC-MPC UFSAR Section 3.8 and 3.A.8 do not specify whether the coatings are ITS. In contrast, the NRC staff note that the NAC-UMS UFSAR (72-1015)

Section 3.8 has a statement indicating that the coatings are Not Important to Safety (NITS).

Similarly, the NAC-MAGNASTOR UFSAR Section 8.6.2 has a statement indicating that the coatings are NITS.

This information is needed to determine compliance with 10 CFR 72.24(c)(3) and (c)(4).

Response to RAI NP-15-7:

The coating systems and sealants for the NAC-MPC system are not important to safety. WCS CISF SAR, Appendix E, Section E.3.1.2.1 and E3.2.2.1 have been updated to state that coating systems and sealants are not-important-to-safety (NITS).

Impact:

SAR Sections E.3.1.2.1 and E.3.2.2.1 have been revised as described in the response.