ML22339A239

NRR E-mail Capture - Acceptance Review - Hatch Supplement to Authorized Relief Request HNP-ISI-RR-05-02 (L-2022-LLL-0018)

ML22339A239
Person / Time
Issue date:	12/05/2022
From:	NRC
To:	Office of Nuclear Reactor Regulation
References
Download: ML22339A239 (3)

Text

From: Dawnmathews Kalathiveettil Sent: Monday, December 5, 2022 3:20 PM To: Quarles, Adam Graham Cc: Chamberlain, Amy Christine; Michael Markley; John Lamb

Subject:

Acceptance Review - Hatch Supplement to Authorized Relief Request HNP-ISI-RR-05-02 (L-2022-LLL-0018)

Importance: High Good afternoon Adam, By letter dated October 27, 2022 (Agencywide Documents and Access Management System (ADAMS) Accession No. ML22300A259), Southern Nuclear Operating Company (SNC, the licensee) submitted a supplement to authorized Relief Request HNP-ISI-RR-05-02 for Edwin I.

Hatch Nuclear Plant (HNP), Unit 2. The supplement describes two input errors discovered by Dominion Engineering, Inc. in evaluation report C-3944-00-01 (Enclosure 2 of SNCs relief request [ML18309A272] dated November 5, 2018) and assesses its impact on Relief Request HNP-ISI-RR-05-02 authorized for HNP Unit 2.

The purpose of this e-mail is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this supplement to authorized Relief Request HNP-ISI-RR-05-02. 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.

Pursuant to Sections 50.55a(z)(1) and 50.55a(z)(2) of Title 10 of the Code of Federal Regulations (10 CFR), the applicant shall demonstrate that the proposed alternatives would provide an acceptable level of quality and safety, or that compliance with the specified requirements of Section 50.55a would result in hardship or unusual difficulty without a compensating increase in the level of quality or safety.

The NRC staff has reviewed your supplement 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 changes 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 70 hours8.101852e-4 days <br />0.0194 hours <br />1.157407e-4 weeks <br />2.6635e-5 months <br /> to complete. The NRC staff expects to complete this review on March 05, 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, and unanticipated addition of scope to the review. 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)

Division of Operating Reactor Licensing - O8 C02 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: 1846 Mail Envelope Properties (BY5PR09MB566609CB8023B306F80087C297189)

Subject:

Acceptance Review - Hatch Supplement to Authorized Relief Request HNP-ISI-RR-05-02 (L-2022-LLL-0018)

Sent Date: 12/5/2022 3:20:21 PM Received Date: 12/5/2022 3:20:00 PM From: Dawnmathews Kalathiveettil Created By: Dawnmathews.Kalathiveettil@nrc.gov Recipients:

"Chamberlain, Amy Christine" <ACCHAMBE@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 3696 12/5/2022 3:20:00 PM Options Priority: High Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: