ML24067A070

NRR E-mail Capture - Change in Estimated Review Completion for Hatch Revise TS Table 1.1-1 (Modes) LAR (L-2022-LLA-0120)

ML24067A070
Person / Time
Site:	Hatch
Issue date:	03/07/2024
From:	Dawnmathews Kalathiveettil NRC/NRR/DORL/LPL2-1
To:	Quarles A Southern Nuclear Operating Co
References
L-2022-LLA-0120
Download: ML24067A070 (3)

Text

From:

Dawnmathews Kalathiveettil Sent:

Thursday, March 7, 2024 8:58 AM To:

Quarles, Adam Graham Cc:

Joyce, Ryan M.; Michael Markley; John Lamb

Subject:

Change in Estimated Review Completion for Hatch 'Revise TS Table 1.1-1 (MODES)' LAR (L-2022-LLA-0120)

Importance:

High Good morning Adam, By letter dated August 19, 2022 (Agencywide Documents and Access Management System (ADAMS) Accession No. ML22231B055), as supplemented by letters dated January 20, 2023 and October 20, 2023, and January 30, 2024 (ML23020A902, ML23293A235, and ML24030A895, respectively), 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 Specifications (TS) Table 1.1-1 MODES to relax required number of fully tensioned reactor pressure vessel head closure bolts.

By email dated September 15, 2022 (ML22258A153), the NRC staff accepted the LAR for review and estimated that the LAR would take approximately 305 hours0.00353 days <br />0.0847 hours <br />5.042989e-4 weeks <br />1.160525e-4 months <br /> to complete by March 24, 2023, based on the information provided in the LAR and the pre-submittal meeting held on August 1, 2022 (ML22243A191). By email dated January 30, 2023 (ML23033A028), the NRC staff revised the estimated hours from 305 hours0.00353 days <br />0.0847 hours <br />5.042989e-4 weeks <br />1.160525e-4 months <br /> to 422 hours0.00488 days <br />0.117 hours <br />6.977513e-4 weeks <br />1.60571e-4 months <br />, based on the complexity of the LAR review along with the need for a regulatory audit (ML22320A072). By email dated March 05, 2023 (ML23065A092), the NRC staff revised the estimated completion date to September 15, 2023, and the estimated hours from 422 hours0.00488 days <br />0.117 hours <br />6.977513e-4 weeks <br />1.60571e-4 months <br /> to 650 hours0.00752 days <br />0.181 hours <br />0.00107 weeks <br />2.47325e-4 months <br />, due to emergent challenges in the LAR review. By email dated September 06, 2023 (ML23249A208), the NRC staff revised the estimated completion date to March 15, 2024, and the estimated hours from 650 hours0.00752 days <br />0.181 hours <br />0.00107 weeks <br />2.47325e-4 months <br /> to 800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br />, due to continued challenges in the LAR review.

The purpose of this email is to officially inform you that the NRC will not complete its LAR review by March 15, 2024 due to (1) changes to the scope of review, and (2) the requirement to re-notice in the Federal Register based on SNC supplement dated January 30, 2024. The NRC staff now expects to complete its review by April 30, 2024. There is no change to NRC staffs earlier estimate that this licensing request will take a total of approximately 800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br /> to complete.

These estimate(s) could change due to several factors such as requests for additional information and an unanticipated addition of scope to the review. If there are emergent complexities or challenges in our review that would result in a change to the estimated completion date or significant changes in the estimated hours, the reasons for the change, and a revised estimate will be communicated during routine interactions with the assigned project manager.

If you have any questions, please contact me, at (301) 415-5905.

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:

2424 Mail Envelope Properties (BY5PR09MB5666A098833C6D58B8C1E42F97202)

Subject:

Change in Estimated Review Completion for Hatch 'Revise TS Table 1.1-1 (MODES)' LAR (L-2022-LLA-0120)

Sent Date:

3/7/2024 8:58:23 AM Received Date:

3/7/2024 8:58:00 AM From:

Dawnmathews Kalathiveettil Created By:

Dawnmathews.Kalathiveettil@nrc.gov Recipients:

"Joyce, Ryan M." <RMJOYCE@southernco.com>

Tracking Status: None "Michael Markley" <Michael.Markley@nrc.gov>

Tracking Status: None "John Lamb" <John.Lamb@nrc.gov>

Tracking Status: None "Quarles, Adam Graham" <AGQUARLE@southernco.com>

Tracking Status: None Post Office:

BY5PR09MB5666.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 2907 3/7/2024 8:58:00 AM Options Priority:

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