ML20302A203

NRR E-mail Capture - V.C. Summer Nuclear Station, Unit 1 - Acceptance Review (L-2020-LLR-0141)

ML20302A203
Person / Time
Site:	Summer
Issue date:	10/28/2020
From:	Vaughn Thomas NRC/NRR/DORL/LPL2-1
To:	Gao Y Dominion Generation
References
L-2020-LLR-0141
Download: ML20302A203 (3)

Text

From: Thomas, Vaughn Sent: Wednesday, October 28, 2020 10:49 AM To: Yan.Gao@dominionenergy.com

Subject:

V.C. SUMMER NUCLEAR STATION, UNIT 1 - ACCEPTANCE REVIEW (L-2020-LLR-0141)

Dear Mr. Gao,

By letter dated October 22, 2020 (Agencywide Documents Access and Management System Package Accession No. ML20296A708), Dominion Energy South Carolina (DESC), proposed an alternative to the volumetric examination in-service inspection (ISI) requirements of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code)

Section XI Code at V.C. Summer Nuclear Station, for the threads in the reactor pressure vessel flange. 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 request 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 continue its detailed technical review and make an independent assessment regarding the acceptability of the proposed 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 in requests for additional information despite completion of an adequate acceptance review. You will be advised of any further information needed to support the NRC staffs detailed technical review by separate correspondence.

Based on the information provided in your submittal, the NRC staff has estimated that the review will take approximately 120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br /> to complete. The staff expects to compete this review by September 2021. 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 staffs initial review of the application and they would change, due to several factors including requests for additional information, unanticipated addition of scope to review, and review by NRC advisory committees or hearing-related activities.

If you have any questions, please contact me on (301) 415-5897.

Thanks Vaughn Thomas, Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Vaughn.Thomas@nrc.gov

301-415-5897 Hearing Identifier: NRR_DRMA Email Number: 865 Mail Envelope Properties (BLAPR09MB6900A9C98BD69A2710BF7EBFF4170)

Subject:

V.C. SUMMER NUCLEAR STATION, UNIT 1 - ACCEPTANCE REVIEW (L-2020-LLR-0141)

Sent Date: 10/28/2020 10:48:36 AM Received Date: 10/28/2020 10:48:36 AM From: Thomas, Vaughn Created By: Vaughn.Thomas@nrc.gov Recipients:

"Yan.Gao@dominionenergy.com" <Yan.Gao@dominionenergy.com>

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