ML19207A299
| ML19207A299 | |
| Person / Time | |
|---|---|
| Site: | NuScale |
| Issue date: | 07/30/2019 |
| From: | Vera Amadiz M NRC/NRO/DLSE/LB1 |
| To: | Samson Lee NRC/NRO/DLSE/LB1 |
| Vera Amadiz M, 415-5861 | |
| References | |
| Download: ML19207A299 (6) | |
Text
July 30, 2019 MEMORANDUM TO:
Samuel S. Lee, Chief Licensing Branch 1 Division of Licensing, Siting, and Environmental Analysis Office of New Reactors FROM:
Marieliz Vera, Project Manager /RA/
Licensing Branch 1 Division of Licensing, Siting, and Environmental Analysis Office of New Reactors
SUBJECT:
AUDIT PLAN FOR THE REGULATORY AUDIT OF THE NUSCALE POWER, LLC, CONTAINMENT ISOLATION VALVES AND REACTOR SAFETY VALVES On January 6, 2017, NuScale Power, LLC (NuScale) submitted a design certification application (DCA) for a small modular reactor to the U.S. Nuclear Regulatory Commission (NRC)
(Agencywide Documents Access and Management System (ADAMS) Accession No. ML17013A229). The NRC staff initiated its detailed technical review of NuScales DCA on March 15, 2017.
The purpose of the subject audit, to be conducted by the NRC staff, is to confirm that the appropriate changes have been completed for the audit items that were assigned the status of confirmatory in the NRC staffs audit report, NRC Report of the Regulatory Audit of NuScale Power LLC, Design Documents for Containment Isolation Valves and Reactor Safety Valves, dated December 7, 2018 (ADAMS Accession No. ML18331A042).
The audit will review information located at the NuScale Office in Rockville, Maryland, and in the NuScale Electronic Reading Room. The audit is currently scheduled to begin on July 30, 2019, and end on September 20, 2019. The audit plan is enclosed.
Docket No.52-048
Enclosure:
As stated cc w/encl: DC NuScale Power, LLC Listserv CONTACT: Marieliz Vera, NRO/DLSE 301-415-5861
NRO-002 OFFICE NRO/DLSE/LB1/PM NRO/DLSE/LB1/LA NRO/DLSE/LB1: PM NAME MVera MMoore MVera DATE 07/30/2019 07/29/2019 07/30/2019
Enclosure U.S. NUCLEAR REGULATORY COMMISSION REGULATORY AUDIT OF DESIGN DOCUMENTS FOR NUSCALE POWER, LLC, CONTAINMENT ISOLATION VALVES AND REACTOR SAFETY VALVES DOCKET NO.52-048 FOLLOW-UP AUDIT PLAN APPLICANT:
NuScale Power, LLC (NuScale)
APPLICANT CONTACT:
Marty Bryan DURATION:
July 30, 2019 - September 20, 2019 LOCATION:
NuScale Power, LLC 11333 Woodglen Drive, Suite205 Rockville, MD 20852 NuScale Electronic Reading Room (eRR)
AUDIT TEAM:
Thomas G. Scarbrough, Sr. Mechanical Engineer (NRC)
John Budzynski, Reactor Systems Engineer (NRC)
Clinton Ashley, Reactor Systems Engineer (NRC)
James Gilmer, Reactor Systems Engineer (NRC)
Marieliz Vera, Project Manager (NRC)
BACKGROUND On March 15, 2017, the U.S. Nuclear Regulatory Commission (NRC) accepted and docketed a standard design certification application (DCA) submitted by NuScale Power, LLC (NuScale),
to certify its small modular reactor design (Reference 1).
The NRC conducted a regulatory audit of NuScale design documents for the containment isolation valves (CIVs) and reactor safety valves (RSVs) during the period of September 4, 2018 to October 31, 2018. The results of that NRC audit are documented in the summary audit report, Report of the Regulatory Audit of NuScale Power LLC., Design Documents for Containment Isolation Valves and Reactor Safety Valves, dated December 7, 2018 (ADAMS Accession No. ML18331A042 - Reference 2).
In its letter, NuScale Powers Status Update for Containment Isolation Valves and Reactor Safety Valves Design Document Audit Follow-Up Items, dated June 28, 2019, (ADAMS Accession No. ML19179A183 - Reference 3), NuScale informed the NRC that many of the items identified as Confirmatory in the summary audit report have been completed and are available for follow-up review.
2 The NRC staff intends to review the updated documents to confirm that the issues have been appropriately addressed so that completed confirmatory items can be closed.
The NRC staff will conduct this audit in accordance with the guidance provided in NRO-REG-108, Regulatory Audits (Reference 4).
PURPOSE The purpose of the audit is to confirm that the appropriate changes have been completed for audit items that were assigned the status of confirmatory in the NRC staffs audit report (Reference 2).
REGULATORY AUDIT BASIS The basis of the previous audit was to confirm that the design of the NuScale CIVs and RSVs is consistent with the assumptions for the performance of those valves in the NuScale DCA.
Title 10 of the Code of Federal Regulations (10 CFR), Part 52, Licenses, Certifications, and Approvals for Nuclear Power Plants, Section 47, Contents of Applications; Technical Information, states the following:
The application must contain a level of design information sufficient to enable the Commission to judge the applicants proposed means of assuring that construction conforms to the design and to reach a final conclusion on all safety questions associated with the design before the certification is granted. The information submitted for a design certification must include performance requirements and design information sufficiently detailed to permit the preparation of acceptance and inspection requirements by the NRC, and procurement specifications and construction and installation specifications by an applicant. The Commission will require, before design certification, that information normally contained in certain procurement specifications and construction and installation specifications be completed and available for audit if the information is necessary for the Commission to make its safety determination.
REGULATORY AUDIT SCOPE The scope of the NRC staffs audit is to examine revision(s) to the design documents for the CIVs and RSVs. The audit team will focus on the areas listed below:
The updated design documents that address items assigned the status of confirmatory in the audit report, Report of the Regulatory Audit of NuScale Power LLC., Design Documents for Containment Isolation Valves and Reactor Safety Valves (ADAMS Accession No. ML18331A042 - Reference 2).
Confirm and close audit confirmatory items where completed.
3 DOCUMENTS/INFORMATION NECESSARY FOR THE AUDIT The NRC staff requests NuScale make the following documents available to the NRC staff in the NuScale eRR:
The updated design documents that were identified as confirmatory in the audit report, Report of the Regulatory Audit of NuScale Power LLC., Design Documents for Containment Isolation Valves and Reactor Safety Valves (ADAMS Accession No. ML18331A042 - Reference 2).
Open design item resolution documents pertaining to Primary System CIV Design Specification, EQ-A010-2235, Secondary System CIV Design Specification, EQ-A010-2224, and RSV Design Specification, EQ-A010-2179, as applicable.
SPECIAL REQUESTS The NRC staff requests that NuScale provide the technical staff with access to the audit documents. NuScale can upload the updated documents onto the NuScale eRR for the NRC staffs review.
During the audit, the NRC staff may have questions and discussion items for the NuScale subject matter experts. NuScale is requested to provide the NRC staff with telephone access to the NuScale subject matter experts. When the NRC staffs review of the documents associated with a specific issue is complete, the staff will notify either the Office of New Reactors, Division of New Reactor Licensing, or NuScale that these documents can be removed from the eRR.
AUDIT ACTIVITIES AND DELIVERABLES The NRC audit team will review the technical areas identified in Section V of this audit plan.
Depending upon the effort needed in a given area, NRC team members may be reassigned to ensure adequate coverage of important technical elements.
The regulatory audit is currently scheduled to begin on July 30, 2019, and end on September 20, 2019. If the NRC staff determines the resolution of confirmatory items require additional effort and time, the audit will be extended, or a follow-up audit will be scheduled.
The NRC will hold bi-weekly (once every two weeks) audit calls and/or meetings (as necessary) with NuScale to identify the confirmatory items that have been closed or will be resolved by another mechanism.
The audit entrance/exit meetings are to be scheduled as follows:
Entrance Meeting: July 30, 2019 Exit Meeting: September 20, 2019 Within 90 days from the conclusion of the audit, the audit team will issue a publicly available audit summary report to the applicant.
The NRC staff acknowledges the proprietary nature of the information requested. It will be handled appropriately throughout the audit. While the NRC staff will take notes, the NRC staff will not remove hard copies or electronic files from the audit site.
4 If necessary, any circumstances related to the conductance of the audit will be communicated to Marieliz Vera (NRC) at 301-415-5861, or email: Marieliz.VeraAmadiz@nrc.gov.
REFERENCES
- 1. NRC Letter, NuScale Power, LLC, - Acceptance of an Application for Standard Design Certification of a Small Modular Reactor, ADAMS Accession No. ML17074A087, March 23, 2017.
- 2. NRC Report of the Regulatory Audit of NuScale Power LLC, Design Documents for Containment Isolation Valves and Reactor Safety Valves, ADAMS Accession No. ML18331A042, December 7, 2018.
- 3. NuScale letter titled NuScale Powers Status Update for Containment Isolation Valves and Reactor Safety Valves Design Document Audit Follow-Up Items ADAMS Accession No. ML19179A183, June 28, 2019.
- 4. NRO-REG-108, Regulatory Audits, ADAMS Accession No. ML081910260, April 2, 2009.