ML21300A389

NRR E-mail Capture - Fyi - Acceptance Review - Vogtle Remove Technical Specification (TS) 3.7.2, Main Steam Isolation Valves (Msivs) LAR (L-2021-LLA-0178)

ML21300A389
Person / Time
Site:	Vogtle
Issue date:	10/27/2021
From:	John Lamb NRC/NRR/DORL/LPL2-1
To:	Joyce R, Lowery K Southern Nuclear Operating Co
References
L-2021-LLA-0178
Download: ML21300A389 (3)

Text

From: Lamb, John Sent: Wednesday, October 27, 2021 3:59 PM To: Lowery, Ken G.; Joyce, Ryan M.

Subject:

FYI - Acceptance Review - Vogtle Remove MSIV LAR (L-2021-LLA-0178)

Importance: High Ken and Ryan, By letter dated September 30, 2021 (ML21274A073, Southern Nuclear Operating Company (SNC, The licensee) submitted a license amendment request (LAR) for Vogtle Electric Generating Plant (Vogtle), Units 1 and 2. The proposed LAR would revise the Vogtle, Units 1 and 2, Technical Specification (TS) 3.7.2, Main Steam Isolation Valves (MSIVs). The proposed TS Limiting Condition for Operation (LCO) currently requires two MSIV systems per main steam line be Operable in Mode 1, and Modes 2 and 3 with exceptions. The proposed LAR would change TS 3.7.2, LCO, to require four MSIVs and their associated actuators and associated bypass valves be Operable in Mode 1, and Modes 2 and 3 with exceptions.

The purpose of this e-mail is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this LAR. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.

Consistent with Section 50.90 of Title 10 of the Code of Federal Regulations (10 CFR), an application for an amendment to a license including the technical specifications must fully describe the changes requested, and following as far as applicable, the form prescribed for original applications. Section 50.34 of 10 CFR addresses the content of technical information required. This section stipulates that the submittal address the design and operating characteristics, unusual or novel design features, and principal safety considerations.

The NRC staff has reviewed your application and concluded that it does provide technical information in sufficient detail to enable the NRC staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed amendment in terms of regulatory requirements and the protection of public health and safety and the environment. Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staffs ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. If additional information is needed, you will be advised by separate correspondence.

Based on the information provided in your submittal and discussions during the pre-licensing meetings on March 12 and August 25, 2021 (ML21074A030 and ML21238A162, respectively),

the NRC staff has estimated that this licensing request will take 954 hours0.011 days <br />0.265 hours <br />0.00158 weeks <br />3.62997e-4 months <br /> to complete. The NRC staff expects to complete this review on January 9, 2023. If there are emergent complexities or challenges in our review that would cause changes to the initial forecasted completion date or significant changes in the forecasted hours, the reasons for the changes, along with the new estimates, will be communicated during the routine interactions with the assigned project manager.

These estimates are based on the NRC staffs initial review of the application and they could change, due to several factors including requests for additional information, unanticipated addition of scope to the review, and review by NRC advisory committees or hearing-related activities. Additional delay may occur if the submittal is provided to the NRC in advance or in parallel with industry program initiatives or pilot applications.

If you have any questions, please contact me.

John G. Lamb, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Hearing Identifier: NRR_DRMA Email Number: 1397 Mail Envelope Properties (MN2PR09MB508499B2ED204DD322518666FA859)

Subject:

FYI - Acceptance Review - Vogtle Remove MSIV LAR (L-2021-LLA-0178)

Sent Date: 10/27/2021 3:59:04 PM Received Date: 10/27/2021 3:59:00 PM From: Lamb, John Created By: John.Lamb@nrc.gov Recipients:

"Lowery, Ken G." <KGLOWERY@southernco.com>

Tracking Status: None "Joyce, Ryan M." <RMJOYCE@southernco.com>

Tracking Status: None Post Office: MN2PR09MB5084.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 3841 10/27/2021 3:59:00 PM Options Priority: High Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: