ML20346A101
| ML20346A101 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs, Nine Mile Point, Byron, Braidwood, Limerick, Clinton, LaSalle  |
| Issue date: | 12/11/2020 |
| From: | Blake Purnell NRC/NRR/DORL/LPL3 |
| To: | Tom Loomis Exelon Generation Co |
| References | |
| L-2020-LLR-0147, L-2020-LLR-0148 | |
| Download: ML20346A101 (3) | |
Text
From:
Purnell, Blake Sent:
Friday, December 11, 2020 9:49 AM To:
Loomis, Thomas R:(GenCo-Nuc) (thomas.loomis@exeloncorp.com)
Cc:
Gudger, David T:(GenCo-Nuc); Salgado, Nancy
Subject:
Exelon Generation Company, LLC - Request for an Alternative to Use ASME Code Case N-893 (EPIDs L-2020-LLR-0147 and L-2020-LLR-0148)
Mr. Loomis:
By application dated November 16, 2020 (ADAMS Accession No. ML20321A234), Exelon Generation Company, LLC (the licensee) submitted a request in accordance with Paragraph 50.55a(z)(1) of Title 10 of the Code of Federal Regulations (10 CFR) for a proposed alternative to certain requirements of 10 CFR 50.55a, Codes and standards, at Braidwood Station, Units 1 and 2; Byron Station, Unit Nos. 1 and 2; Calvert Cliffs Nuclear Power Plant, Units 1 and 2; Clinton Power Station, Unit No. 1; LaSalle County Station, Units 1 and 2; Limerick Generation Station, Units 1 and 2; and Nine Mile Point Nuclear Station, Unit 2. The proposed alternative would allow the licensee to use the American Society of Mechanical Engineers Code Case N-893, Use of Alloy Steel Bar and Mechanical Tubing in Class 2 and 3 Patented Mechanical Joints and Fittings,Section III, Division 1, at these facilities.
The purpose of this email is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this proposed alternative. 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.
The NRC staff has reviewed your application and concluded that it provides technical information in sufficient detail to enable the 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 staffs detailed technical review by separate correspondence.
Based on the information provided in your submittal, the NRC staff estimates that review of this request will take approximately 250 hours0.00289 days <br />0.0694 hours <br />4.133598e-4 weeks <br />9.5125e-5 months <br /> to complete. The staff expects to complete its review by December 31, 2021. These estimates are based on the staffs initial review of the application and they could change due to several factors, including requests for additional information. If there are emergent complexities or challenges in our review that would cause changes to the initial forecasted completion date or significant changes to the forecasted hours, I will inform you of the reason for the change and provide the new estimates.
Sincerely, Blake Purnell, Project Manager Plant Licensing Branch III Division of Operating Reactor Licensing
Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission ph: 301-415-1380 Docket Nos. STN 50-456, STN 50-457, STN 50-454, STN 50-455, 50-317, 50-318, 50-461, 50-373, 50-374, 50-352, 50-353, and 50-410
Hearing Identifier:
NRR_DRMA Email Number:
927 Mail Envelope Properties (BLAPR09MB6481A8BDB3151EA882E425EFE6CA0)
Subject:
Exelon Generation Company, LLC - Request for an Alternative to Use ASME Code Case N-893 (EPIDs L-2020-LLR-0147 and L-2020-LLR-0148)
Sent Date:
12/11/2020 9:49:22 AM Received Date:
12/11/2020 9:49:22 AM From:
Purnell, Blake Created By:
Blake.Purnell@nrc.gov Recipients:
"Gudger, David T:(GenCo-Nuc)" <David.Gudger@exeloncorp.com>
Tracking Status: None "Salgado, Nancy" <Nancy.Salgado@nrc.gov>
Tracking Status: None "Loomis, Thomas R:(GenCo-Nuc) (thomas.loomis@exeloncorp.com)" <thomas.loomis@exeloncorp.com>
Tracking Status: None Post Office:
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