ML23304A476

LLC Response to NRCs Request for Docketing of Resolved Audit Responses, Chapter 3, Response to Sdaa Question 11.5-3, Re Information Related to Process and Effluent Radiation Monitoring Instrumentation and Sampling System

ML23304A476
Person / Time
Site:	05200050
Issue date:	10/31/2023
From:	NuScale
To:	Office of Nuclear Reactor Regulation
Shared Package
ML23306A049	List: ML23304A446 ML23304A447 ML23304A448 ML23304A449 ML23304A450 ML23304A451 ML23304A464 ML23304A465 ML23304A466 ML23304A467 ML23304A468 ML23304A469 ML23304A470 ML23304A471 ML23304A472 ML23304A473 ML23304A474 ML23304A475 ML23304A476 ML23304A477 ML23304A478 ML23304A479 ML23304A480 ML23304A482 ML23304A483 ML23304A485 ML23304A486 ML23304A487 ML23304A488 ML23304A489 ML23304A490 ML23304A492 ML23304A493 ML23304A494 ML23304A495 ML23304A496 ML23304A516 ML23304A517 ML23304A519 ML23304A521 ML23304A522 ML23304A524
References
LO-152560
Download: ML23304A476 (1)

Text

NuScale Nonproprietary Response to SDAA Audit Question Question Number: A-11.5-3 Receipt Date: 06/05/2023 Question:

Inital Question:

How is NuScale addressing the calibration requirements for their radiation monitoring? Previously the applicant referenced information on EPRI TR-102644 and RG 1.21 but this information is no longer included in the SDAA Section 11.5.

NRC Follow-up Response:

The response to item A-11.5-3 is not adequate. NuScale proposes updates to the application to provide a little detail on radiation monitor calibration, but the level of information provided is not sufficient. The response says radiation monitor calibration will follow ALARA principles and industry guidance but does not provide any indication of what the industry guidance being used is. The application should contain a similar level of detail regarding the calibration of radiation monitors as was provided in the DCA. As an alternative, the SDA should provide a COLA item for the COL applicant to provide additional information regarding the calibration requirements for radiation monitors.

Response

NuScale SDA Section 13.5 includes COL Item 13.5-6 that requires applicants to describe site-specific maintenance and other operating procedures, which include calibration and test procedures. NuScale partially conforms to Regulatory Guide (RG) 1.21. Issuance of the calibration and test procedures is the responsibility of the COL applicant.

No changes to the SDAA are necessary.

NuScale Nonproprietary