ML19295E551

COL Docs - Acceptance Letter for LAR 19-009, ADS Valves and Cmt Parameters for Vogtle 3 and 4

ML19295E551
Person / Time
Site:	Vogtle
Issue date:	10/21/2019
From:	NRC
To:	NRC/NRR/DNRL
References
Download: ML19295E551 (4)

Text

Vogtle PEmails From: Patel, Chandu Sent: Monday, October 21, 2019 5:14 PM To: Vogtle PEmails

Subject:

Acceptance Latter for LAR 19-009, ADS Valves and CMT parameters for Vogtle 3 and 4 Attachments: Acceptance Letter LAR 19-009.docx Here is an acceptance letter for LAR 19-009 for Vogtle 3 and 4 (052-0025 and 052-0026).

Sincerely, Chandu Patel, Senior Project Manager U.S. NRC, Vogtle Project Office NRC/NRR/VPO, Washington, DC 20555-0001 301.415.3025 MS O 13 H9 1

Hearing Identifier: Vogtle_COL_Docs_Public Email Number: 492 Mail Envelope Properties (BYAPR09MB32212C6FEFF184447D4E39B482690)

Subject:

Acceptance Latter for LAR 19-009, ADS Valves and CMT parameters for Vogtle 3 and 4 Sent Date: 10/21/2019 5:14:15 PM Received Date: 10/21/2019 5:14:20 PM From: Patel, Chandu Created By: Chandu.Patel@nrc.gov Recipients:

"Vogtle PEmails" <Vogtle.PEmails@nrc.gov>

Tracking Status: None Post Office: BYAPR09MB3221.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 266 10/21/2019 5:14:20 PM Acceptance Letter LAR 19-009.docx 39744 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

October 21, 2019 Mr. Brian H. Whitley, Director Regulatory Affairs Southern Nuclear Operating Company, Inc.

3535 Colonnade Parkway BIN B237 Birmingham, AL 35243

SUBJECT:

ACCEPTANCE REVIEW OF SOUTHERN NUCLEAR OPERATING COMPANYS REQUEST FOR LICENSE AMENDMENT FOR AUTOMATIC DEPRESSURIZATION SYSTEM AND CORE MAKEUP TANK DESIGN PARAMETERS FOR THE VOGTLE ELECTRIC GENERATING PLANT UNITS 3 AND 4 (LAR-19-009)(EPID NO. L-2019-LLA-0213)

Dear Mr. Whitley:

By letter dated September 30, 2019 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML19273A953), Southern Nuclear Operating Company (SNC) submitted a request for a license amendment to Combined License (COL) Numbers NPF-91 and NPF-92, for the Vogtle Electric Generating Plant Units 3 and 4, respectively. The requested amendment proposes changes to reflect revisions in the design parameters of a) the maximum stroke times for the automatic depressurization system (ADS) Stages 1, 2 and 3 valves, b) the minimum effective flow areas for the ADS Stages 2 and 3 valves, and c) the core makeup tank minimum volume. Pursuant to the provisions of 10 CFR 52.63(b)(1), an exemption from elements of the design as certified in the 10 CFR Part 52, Appendix D, design certification rule is also requested for the plant-specific Design Control DocumentTier 1 material departures.

The purpose of this letter is to provide the results of the U.S. Nuclear Regulatory Commission 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 staff to complete its detailed technical reviews. 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.

Consistent with Section 50.90 of the 10 CFR, an amendment to the license must fully describe the changes requested, and follow as far as applicable, the form prescribed for original applications. Section 52.79 of the 10 CFR addresses content of technical information required.

This section stipulates that the submittal addresses the design and operating characteristics, unusual or novel design features, and principal safety considerations.

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 amendment, 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.

SNC has requested staff approval of this license amendment request by March 30, 2020. The staff intends to complete this action by June 30, 2020. However, the staff will try to expedite its review to have it completed by March 30, 2020, unless we agree to a

different date at a later time due to circumstances beyond our control. The staff estimates that it may take 275 hours11.458 days <br />1.637 weeks <br />0.377 months <br /> to complete this licensing action.

If you have any questions, please contact me at (301) 415-3025 or Chandu.Patel@nrc.gov.

Sincerely, Chandu Patel, Senior Project Manager Vogtle Project Office Office of Nuclear Reactor Regulations Docket No(s): 52-025 52-026