ML14097A512

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NRR E-mail Capture - Acceptance Review for Proposed Alternative to Utilize Code Case N-513-3 at a Higher System Operating Pressure
ML14097A512
Person / Time
Site: Peach Bottom, Quad Cities  Constellation icon.png
Issue date: 04/07/2014
From: Joel Wiebe
Plant Licensing Branch III
To: Tom Loomis
Exelon Generation Co
References
Download: ML14097A512 (2)


Text

NRR-PMDAPEm Resource From: Wiebe, Joel Sent: Monday, April 07, 2014 11:42 AM To: Tom Loomis

Subject:

Acceptance Review for Proposed Alternative to Utilize Code Case N-513-3 at a Higher System Operating Pressure By letter dated March 28, 2014, (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML14090A140), Exelon Generation Company, LLC (Exelon), submitted a request to utilize a proposed alternative to the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, "Rules for lnservice Inspection of Nuclear Power Plant Components," on the basis that the proposed alternative would provide an acceptable level of quality and safety. Specifically, Exelon is requesting to apply the evaluation methods of ASME Code Case N-513-3, "Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3 Piping Section XI, Division 1 ," to the Class 3 High Pressure Service Water System piping (Peach Bottom Atomic Power Station) and the Residual Heat Removal Service Water System piping (Quad Cities Nuclear Power Station) with a maximum operating pressure of 375 psig. 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 reviewed your request 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 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.

If you have any questions, please contact me at (301) 415-6606.

Joel S. Wiebe, Sr. Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation 1

Hearing Identifier: NRR_PMDA Email Number: 1205 Mail Envelope Properties (Joel.Wiebe@nrc.gov20140407114200)

Subject:

Acceptance Review for Proposed Alternative to Utilize Code Case N-513-3 at a Higher System Operating Pressure Sent Date: 4/7/2014 11:42:24 AM Received Date: 4/7/2014 11:42:00 AM From: Wiebe, Joel Created By: Joel.Wiebe@nrc.gov Recipients:

"Tom Loomis" <thomas.loomis@exeloncorp.com>

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 2450 4/7/2014 11:42:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received: