ML22126A010

Pre-Submittal Meeting on May 11, 2022 - Vogtle ATF LTAs LAR and Exemption Requests - Licensing Questions

ML22126A010
Person / Time
Site:	Vogtle
Issue date:	05/11/2022
From:	John Lamb Plant Licensing Branch II
To:
References
Download: ML22126A010 (9)

Text

Vogtle Unit 2 Accident Tolerant Fuel (ATF)

Lead Test Assemblies (LTAs) with Increased Enrichment

P re-submittal Meeting May 11, 2022

John G. Lamb, Senior Project Manager Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Background

• P re-submittal meeting, January 27, 2022.

• P re-submittal meeting summary dated February 1, 2022 (ML22028A046).

• Topical Report Precedent: SNC GSI-191 one-time exception to LIC-109, LIC-101, and LIC-500 acceptance review criteria dated January 10, 2017 (ML17010A325).

Background

• In License Condition D, an exemption, dated August 21, 1986 (ML012280408), relieved the licensee from having a criticality alarm system and was based on enrichment of less than 4 wei g ht-percent U-235. This License Condition was brought forth to the Renewed License.

• By letter dated October 10, 1989 (ML19327B134), the NRC issued Amendment No.

5 for Vogtle, Unit 2, that allowed up to 4.55 weight percent U-235.

Licensing Questions

• Does SNC plan to submit a one-time exception to LIC-109, LIC-101, and LIC-500 acceptance review criteria for Vogtle, Unit 2, ATF LTA Topical Reports supporting licensing request?

• Besides exemption dated August 21, 1986, please identify if SNC has an exemption that relieves Vogtle, Unit 2, from having a criticality alarm system for fuel greater than 4 weight percent U-235 Licensing Questions

• Please explain the basis for the assertion that License Condition D has no enrichment limit.

• Please explain the basis for the assertion that an exemption from 10 CFR 70.24 is not needed to go to 6 weight percent U -235.

• Please provide the safety basis and justify the assertion criticality monitors are not needed for 6 weight-percent U-235.

Licensing Questions

• During the January 27, 2022, meeting, SNC mentioned the need for changes to TS 4.2.1 and 4.3.1 as well as Potential Changes for TS 3.7.18.

• Among other aspects discussed during the meeting on January 27, 2022, the staff had a question regarding the TS Risk Informed Completion Time (RICT) Program.

Licensing Questions

• Has SNC determined if changes to TS 3.7.18 will be required?

• If so, what are those changes?

• Has consideration been given to providing a discussion in the proposed LAR that addresses or confirms that the TS RICT is not impacted by the fuel change?

Licensing Questions

• Provide update on any plan to revise TS 3.7.18

- Fuel Assembly Storage in the Fuel Storage Pool, which was mentioned as a potential change at the January 27, 2022, meeting The NRC staff did not make any regulatory decisions at today s meeting.