ML24138A158

NRR E-mail Capture - (External_Sender) Acceptance Review - Hatchs Revise TS Surveillance Requirements to Increase SRV Setpoints LAR (L-2024-LLA-0054)

ML24138A158
Person / Time
Site:	Hatch
Issue date:	05/17/2024
From:	Bates E Southern Nuclear Operating Co
To:	Dawnmathews Kalathiveettil NRC/NRR/DORL/LPL2-1
References
L-2024-LLA-0054
Download: ML24138A158 (3)

Text

From:

Bates, Ernest F. <EFBATES@southernco.com>

Sent:

Friday, May 17, 2024 11:32 AM To:

Dawnmathews Kalathiveettil

Subject:

[External_Sender] RE: Acceptance Review - Hatch's 'Revise TS Surveillance Requirements to Increase S/RV Setpoints' LAR (L-2024-LLA-0054)

Received. Thank you!

From: Dawnmathews Kalathiveettil <Dawnmathews.Kalathiveettil@nrc.gov>

Sent: Friday, May 17, 2024 10:25 AM To: Bates, Ernest F. <EFBATES@southernco.com>

Cc: Joyce, Ryan M. <RMJOYCE@southernco.com>; Quarles, Adam Graham

<AGQUARLE@southernco.com>; Michael Markley <Michael.Markley@nrc.gov>; John Lamb

<John.Lamb@nrc.gov>; Zach Turner <Zachary.Turner@nrc.gov>; Jack Minzer Bryant

<jack.minzerbryant@nrc.gov>

Subject:

Acceptance Review - Hatch's 'Revise TS Surveillance Requirements to Increase S/RV Setpoints' LAR (L-2024-LLA-0054)

Good mor ning Ernest, By letter dated April 19, 2024 (Agencywide Documents and A ccess Management System (ADAMS) Accession No. ML24110A098), Southern Nuclear Operating Company (SNC, the licensee) submitted a license amendment request (LAR) for Good morning Ernest, By letter dated April 19, 2024 (Agencywide Documents and Access Management System (ADAMS) Accession No. ML24110A098), Southern Nuclear Operating Company (SNC, the licensee) submitted a license amendment request (LAR) for Edwin I. Hatch Nuclear Plant (HNP), Units 1 and 2. The proposed LAR revises Technical Specification (TS) Surveillance Requirement (SR) 3.4.3.1 to increase the nominal mechanical relief setpoints for all safety/relief valves (S/RVs) of the reactor coolant system (RCS) nuclear pressure relief system (NPRS). The proposed changes will reduce the potential for S/RV pilot leakage. As a result of the increased S/RV setpoints, the LAR also proposes to change SR 3.1. 7. 7 to increase the minimum Standby Liquid Control pump discharge pressure accordingly.

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 LAR 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, the NRC staff has estimated that this licensing request will take approximately 260 hours0.00301 days <br />0.0722 hours <br />4.298942e-4 weeks <br />9.893e-5 months <br /> to complete. The NRC staff expects to complete this review on January 17, 2025. 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.

Best Regards, Dawnmathews T. Kalathiveettil Hatch Project Manager Plant Licensing Branch (LPL 2-1)

DORL - O9 E07 Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Office Phone: 301-415-5905 Email: Dawnmathews.Kalathiveettil@nrc.gov

Hearing Identifier:

NRR_DRMA Email Number:

2504 Mail Envelope Properties (BN8PR04MB6306C55A0893F81C3051249ED7EE2)

Subject:

[External_Sender] RE Acceptance Review - Hatch's 'Revise TS Surveillance Requirements to Increase SRV Setpoints' LAR (L-2024-LLA-0054)

Sent Date:

5/17/2024 11:32:22 AM Received Date:

5/17/2024 11:32:38 AM From:

Bates, Ernest F.

Created By:

EFBATES@southernco.com Recipients:

"Dawnmathews Kalathiveettil" <Dawnmathews.Kalathiveettil@nrc.gov>

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