ML13066A301
| ML13066A301 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Byron, Braidwood, Clinton, LaSalle  |
| Issue date: | 03/07/2013 |
| From: | Joel Wiebe Division of Operating Reactor Licensing |
| To: | Tom Loomis Exelon Generation Co |
| References | |
| TAC MF0804, TAC MF0820 | |
| Download: ML13066A301 (2) | |
Text
1 NRR-PMDAPEm Resource From:
Wiebe, Joel Sent:
Thursday, March 07, 2013 9:12 AM To:
Subject:
Acceptance Review for Braidwood et al---Relief Request to use ASME Code Case N-786 to repair degraded piping (TAC MF0804 to MF0820)
By letter dated February 27, 2013 (Agencywide Documents and Access Management System (ADAMS)
Accession No. ML13059A498), Exelon Generation Company (the licensee) requested relief from the requirements of American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),
Section XI, IWA-4000, for Braidwood Station Units 1 and 2, Byron Station Units 1 and 2, Clinton Power Station Unit 1, Dresden Nuclear Power Station Units 2 and 3, LaSalle County Stations Units 1 and 2, Limerick Generating Station Units 1 and 2, Oyster Creek Nuclear Generating Station, Peach Bottom Atomic Power Station Units 2 and 3, Quad Cities Nuclear Power Station Units 1 and 2, and Three Mile Island Nuclear Station Unit 1.
Specifically, the licensee proposes to implement the requirements of ASME Code Case N-786, "Alternative Requirements for Sleeve Reinforcement of Class 2 and 3 Moderate-Energy Carbon Steel Piping Section XI, Division 1,"for repair of degradation in Class 2 and 3 moderate energy carbon steel piping systems resulting from mechanisms such as localized erosion, corrosion, cavitation, or pitting, but excluding conditions involving any form of cracking.
The purpose of this e-mail is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this request. 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 concluded that the subject relief request does provide technical information in sufficient detail to enable the NRC staff to complete the detailed technical review and make an independent assessment regarding the acceptability of the proposed relief request 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.
Joel
Hearing Identifier:
NRR_PMDA Email Number:
622 Mail Envelope Properties (Joel.Wiebe@nrc.gov20130307091200)
Subject:
Acceptance Review for Braidwood et al---Relief Request to use ASME Code Case N-786 to repair degraded piping (TAC MF0804 to MF0820)
Sent Date:
3/7/2013 9:12:22 AM Received Date:
3/7/2013 9:12:00 AM From:
Wiebe, Joel Created By:
Joel.Wiebe@nrc.gov Recipients:
"Tom Loomis" <thomas.loomis@exeloncorp.com>
Tracking Status: None Post Office:
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