ML25261A179
| ML25261A179 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 09/18/2025 |
| From: | Bina S Plant Licensing Branch 1 |
| To: | Rhoades D Constellation Energy Generation |
| Marshall, Michael | |
| References | |
| EPID L-2025-LLR-0083 | |
| Download: ML25261A179 (1) | |
Text
From:
Sam Bina To:
wendi.para@constellation.com; jesse.brown@constellation.com Cc:
Hipo Gonzalez
Subject:
Calvert Cliffs Nuclear Power Plant Units 1 and 2 - Acceptance of Requested Licensing Action Re: Proposed Alternative for Implementation of Extended Reactor Vessel Inservice Inspection Intervals (EPID L-2025-LLR-0083)
Date:
Thursday, September 18, 2025 1:45:00 PM
Dear Wendi Para,
By letter dated 08 August, 2025 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML25240B625), Constellation Energy Generation LLC submitted a relief request for Calvert Cliffs Nuclear Power Plant Units 1 and 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 relief request. The acceptance review was performed to determine whether the application contains sufficient technical information to allow the NRC staff to complete a detailed technical review. The acceptance review is also intended to identify any readily apparent deficiencies related to the characterization of the regulatory requirements or plant licensing basis.
Pursuant to Sections 50.55a(z)(1) and 50.55a(z)(2) of Title 10 of the Code of Federal Regulations (10CFR), 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 application and concluded that it includes 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 relief in terms of regulatory requirements and the protection of public health and safety and the environment. Given the more limited scope and depth of the acceptance review compared to the detailed technical review, issues that affect the NRC staffs ability to complete the technical review may still be identified despite the acceptance review being deemed adequate.
If additional information is needed, you will be notified by separate correspondence.
The NRC staff has evaluated precedence related to this request. Historically these reviews have required 111 hours0.00128 days <br />0.0308 hours <br />1.835317e-4 weeks <br />4.22355e-5 months <br /> and 11 months. To support a more efficient process, the NRC is setting a goal of achieving at least 15% improvement (e.g., reduction). Based on that, our estimate for this review is 94 hours0.00109 days <br />0.0261 hours <br />1.554233e-4 weeks <br />3.5767e-5 months <br /> and 9 months. The NRC staff expects to complete the review by June 18, 2025
If emergent complexities or challenges arise during the NRC staffs review that affect the initial
forecasted completion date or result in significant changes to the estimated review hours, the reasons for those changesalong with updated estimateswill be communicated during routine interactions with the assigned project manager. These estimates are based on the NRC staffs initial review of the application and may change due to several factors, including requests for additional information, unanticipated expansion of the review scope, hearing-related activities, or if the submittal is provided to the NRC in advance of or concurrently with industry program initiatives or pilot applications.
If you have any questions, please contact me.
Samuel Dean Bina, Project Manager LPL 1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation