ML23096A159

NRR E-mail Capture - South Texas Project - Acceptance of Requested Licensing Action - Proposed Alternative to the Requirements of the ASME Code

ML23096A159
Person / Time
Site:	South Texas
Issue date:	04/06/2023
From:	Dennis Galvin NRC/NRR/DORL/LPL4
To:	Rodgers S South Texas
References
L-2023-LLR-0004
Download: ML23096A159 (3)

Text

From: Dennis Galvin Sent: Thursday, April 6, 2023 11:19 AM To: Rodgers, Stephanie Cc: Dibbern, Zachary

Subject:

South Texas Project - Acceptance of Requested Licensing Action - Proposed Alternative to the Requirements of the ASME Code (EPID L-2023-LLR-0004)

Dear Ms. Rodgers,

By letter dated February 1, 2023 (ADAMS Accession No. ML23032A484), as supplemented by letter dated March 9, 2023 (ML23068A364), STP Nuclear Operating Company (STPNOC, the licensee) submitted a proposed alternative to certain American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components, requirements at South Texas Project (STP), Units 1 and 2 pursuant to Title 10 of the Code of Federal Regulations (10 CFR) 50.55a, codes and standards, paragraph (z)(1). Specifically, the licensee proposed an alternative frequency for the examinations of unbonded post-tensioning systems to the requirements of IWL-2421(b).

The purpose of this email is to provide the results of the U.S. Nuclear Regulatory Commission (NRC or the Commission) staffs acceptance review of these proposed relief requests. 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 any submittal 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 alternative 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 submittal, as supplemented, 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 alternative 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 staffs ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. You will be advised of any further information needed to support the NRC staffs detailed technical review by separate correspondence.

Based on the information provided in your submittal, as supplemented, 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. The NRC staff expects to complete this review by April 6, 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 the routine interactions with the assigned project manager.

These estimates are based on the NRC staffs initial review of the applications 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 at (301) 415-6256.

Respectfully, Dennis Galvin, Project Manager Plant Licensing Branch 4 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-498, 50-499

Hearing Identifier: NRR_DRMA Email Number: 2032 Mail Envelope Properties (SA1PR09MB811129AFF81AC8BD3C427DD2FB919)

Subject:

South Texas Project - Acceptance of Requested Licensing Action - Proposed Alternative to the Requirements of the ASME Code (EPID L-2023-LLR-0004)

Sent Date: 4/6/2023 11:19:18 AM Received Date: 4/6/2023 11:19:00 AM From: Dennis Galvin Created By: Dennis.Galvin@nrc.gov Recipients:

"Dibbern, Zachary" <zedibbern@STPEGS.COM>

Tracking Status: None "Rodgers, Stephanie" <scrodgers@STPEGS.COM>

Tracking Status: None Post Office: SA1PR09MB8111.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 3753 4/6/2023 11:19:00 AM Options Priority: Normal Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: