ML23262B450

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NRR E-mail Capture - H. B. Robinson Steam Electric Plant, Unit 2 - Acceptance of License Amendment Request to Exclude the Dynamic Effects of Specific Postulated Pipe Ruptures Based on Leak-Before-Break Methodology
ML23262B450
Person / Time
Site: Robinson Duke Energy icon.png
Issue date: 09/19/2023
From: Luke Haeg
Plant Licensing Branch II
To: Treadway R
Duke Energy Progress
References
L-2023-LLA-0122
Download: ML23262B450 (3)


Text

From:

Luke Haeg Sent:

Tuesday, September 19, 2023 3:58 PM To:

Ryan.Treadway@duke-energy.com Cc:

Duc, Joshua Brian; David Wrona

Subject:

Robinson, Unit 2 - Acceptance of License Amendment Request to Exclude the Dynamic Effects of Specific Postulated Pipe Ruptures from the Design and Licensing Basis Based on Leak-Before-Break Methodology (EPID L-2023-LLA-0122)

Dear Mr. Treadway,

By letter dated August 30, 2023 (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML23242A086), Duke Energy Progress, LLC (Duke Energy, the licensee), submitted a license amendment request (LAR) for H. B. Robinson Steam Electric Plant, Unit No. 2 (Robinson). The proposed amendment would eliminate the dynamic effects of postulated pipe ruptures to auxiliary piping systems attached to the Reactor Coolant System from the Robinson design and licensing basis using Leak-Before-Break methodology.

The purpose of this email 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 whether the scope and depth of the technical information was sufficient to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify within the submittal any readily apparent information insufficiencies in the 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 the license must fully describe the changes requested, and following as far as applicable, the form prescribed for original applications.

The NRC staff has reviewed Duke Energys submittal and concluded that it did 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 Duke Energys submittal, the NRC staff has estimated that this licensing request will take approximately 220 hours0.00255 days <br />0.0611 hours <br />3.637566e-4 weeks <br />8.371e-5 months <br /> to complete and that the review can be completed within 12 months of acceptance of the LAR (i.e., by September 19, 2024). 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 routine interactions between Duke Energy and the NRC project manager. These estimates are based on the NRC staffs initial review of the LAR submittal, and they could change due to several factors, including requests for additional information and unanticipated addition of scope to the review.

If you have any questions, please contact me at (301) 415-0272 or lucas.haeg@nrc.gov.

Luke Haeg Project Manager NRR/DORL/LPL2-2 U.S. Nuclear Regulatory Commission 301-415-0272

Hearing Identifier:

NRR_DRMA Email Number:

2241 Mail Envelope Properties (DM8PR09MB6407CDB036E0637ABC596B5398FAA)

Subject:

Robinson, Unit 2 - Acceptance of License Amendment Request to Exclude the Dynamic Effects of Specific Postulated Pipe Ruptures from the Design and Licensing Basis Based on Leak-Before-Break Methodology (EPID L-2023-LLA-0122)

Sent Date:

9/19/2023 3:57:37 PM Received Date:

9/19/2023 3:57:00 PM From:

Luke Haeg Created By:

Lucas.Haeg@nrc.gov Recipients:

"Duc, Joshua Brian" <Joshua.Duc@duke-energy.com>

Tracking Status: None "David Wrona" <David.Wrona@nrc.gov>

Tracking Status: None "Ryan.Treadway@duke-energy.com" <Ryan.Treadway@duke-energy.com>

Tracking Status: None Post Office:

DM8PR09MB6407.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 3215 9/19/2023 3:57:00 PM Options Priority:

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