ML17163A005

2017/06/08 NRR E-mail Capture - North Anna Power Station, Units 1 and 2 - Acceptance of Relief Requests N1-I4-NDE-010 and N2-I4-NDE-005 (CAC Nos. MF9534and MF9535)

ML17163A005
Person / Time
Site:	North Anna
Issue date:	06/08/2017
From:	Randy Hall Plant Licensing Branch II
To:	Sly C D Dominion Generation
References
MF9534, MF9535
Download: ML17163A005 (3)

Text

1 NRR-PMDAPEm Resource From:Hall, Randy Sent: Thursday, June 08, 2017 3:36 PM To: Craig.Sly@dom.com; Diane Aitken (Generation - 6)

Cc: Tom.Huber@dom.com

Subject:

North Anna Power Station, Units 1 and 2 - Acceptance of Relief Requests N1-I4-

NDE-010 and N2-I4-NDE-005 (CAC Nos. MF9534and MF9535)June 8, 2017

Mr. Craig Sly Manager, Nuclear Regulatory Affairs Virginia Electric and Power Company

Dear Mr. Sly,

By letter dated March 27, 2017 (Agencywide Documents Access and Management System Accession No. ML17090A429), the Virginia Electric and Power Company (Dominion, the licensee) submitted relief requests for the North Anna Power Station, Units 1 and 2 (NAPS 1 and 2). The relief requests propose acceptance of an alternative to the requirements of the applicable edition of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code, in accordance with 10 CFR 50.55a(z)(1), that would extend the frequency of certain reactor vessel nozzle weld examinations from 10 to 20 years. The alternative would be applicable for the fourth and fifth 10-year inservice inspection (ISI) intervals for NAPS 1 and 2, and is proposed in accordance with the guidance of WCAP-17236-NP-A, Revision 0, "Risk-Informed Extension of the Reactor Vessel Nozzle Inservice Inspection Interval."

The purpose of this email is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staff's acceptance review of these 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 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 does provide 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 relief requests in terms of regulatory requirements and the protection of public health andsafety 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 staff's 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.

Based on the information provided in your submittal, the NRC staff has estimated that this licensing 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 NRC staff expects to complete this review in approximately 10 months, by January 31, 2018. 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 staff's initial review of the application 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.

2 If you have any questions, please contact me at (301) 415-4032.

Sincerely, Randy Hall, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation USNRC (301) 415-4032 Randy.Hall@nrc.gov

Hearing Identifier: NRR_PMDA Email Number: 3555 Mail Envelope Properties (Randy.Hall@nrc.gov20170608153500)

Subject:

North Anna Power Station, Units 1 and 2 - Acceptance of Relief Requests N1-I4-NDE-010 and N2-I4-NDE-005 (CAC Nos. MF9534and MF9535) Sent Date: 6/8/2017 3:35:51 PM Received Date: 6/8/2017 3:35:00 PM From: Hall, Randy Created By: Randy.Hall@nrc.gov Recipients: "Tom.Huber@dom.com" <Tom.Huber@dom.com> Tracking Status: None "Craig.Sly@dom.com" <Craig.Sly@dom.com> Tracking Status: None "Diane Aitken (Generation - 6)" <diane.aitken@dominionenergy.com>

Tracking Status: None Post Office: Files Size Date & Time MESSAGE 3566 6/8/2017 3:35:00 PM

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