ML20140A333

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X-Energy Draft SE Xe-100 Nuclear Reactors QAPD
ML20140A333
Person / Time
Issue date: 07/13/2020
From: Benjamin Beasley
NRC/NRR/DANU/UARL
To: Bowers H
X-Energy
Vechioli L,NRR/DANU/UARL,415-6035
Shared Package
ML20142A286 List:
References
EPID L-2019-TOP-0020
Download: ML20140A333 (3)


Text

OFFICIAL USE ONLY - PROPRIETARY INFORMATION OFFICIAL USE ONLY - PROPRIETARY INFORMATION July 13, 2020 Mr. Harlan Bowers President X Energy, LLC 801 Thompson Avenue Rockville, MD 20852

SUBJECT:

DRAFT SAFETY EVALUATION REPORT REGARDING THE REVIEW OF X ENERGYS TOPICAL REPORT XEQAPD, QUALITY ASSURANCE PROGRAM DESCRIPTION, REVISION 2 (EPID NO. L-2019-TOP-0020)

Dear Mr. Bowers:

By letter dated July 31, 2019 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML19213A059), X Energy, LLC (X-Energy), submitted for U.S. Nuclear Regulatory Commission (NRC) staff review its topical report XEQAPD, (Quality Assurance Program Description), Revision 0. The XEQAPD was submitted in accordance with the guidance of NUREG-0800, Standard Review Plan (SRP) for the Review of Safety Analysis Reports for Nuclear Power Plants, Section 17.5, Quality Assurance Program Description -

Design Certification, Early Site Permit and New License Applicant, Revision 1, dated August 2015. By letter dated February 3, 2020 (ADAMS Accession No. ML20052C884), X-Energy responded to the NRC staffs request for additional information (RAI) and provided Revision 1 to topical report XEQAPD. Following a clarification call on April 7, 2020, X-Energy submitted Revision 2 to topical report XEQAPD by letter dated April 8, 2020 (ADAMS Accession No. ML20104C134).

The NRC staff noted that X-Energy listed Revision 2, dated October 2010 as the most current edition of Regulatory Guide (RG) 1.54. However, the latest edition of RG 1.54 is Revision 3, issued in April 2017. In addition, the NRC staff noted that Subsection 7.2, NQA-1 Commitments and Exceptions, states, in part, X-energy considers that other 10 CFR Parts 50 and 52 licensees.... The word other seems to imply that X-Energy is a licensee, which is not appropriate. Consequently, the NRC expects that X-Energy will remove the word other from Subsection 7.2 and evaluate its conformance with the latest Edition of RG 1.54 as part of a Design Certification application.

The Enclosure to this letter contains Proprietary information. When separated from the Enclosure, this document is DECONTROLLED.

OFFICIAL USE ONLY - PROPRIETARY INFORMATION OFFICIAL USE ONLY - PROPRIETARY INFORMATION The X-Energy Quality Assurance Program Description (QAPD) topical report addresses design activities to support its design certification for the X-Energy Xe-100 nuclear power reactor. The QAPD is based on the applicable portions of both Appendix B, Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants, to 10 CFR Part 50, Domestic Licensing of Production and Utilization Facilities, and the American Society of Mechanical Engineers NQA-1-2015, Quality Assurance Program Requirements for Nuclear Facilities, as endorsed by NRC RG 1.28, Quality Assurance Program Criteria (Design and Construction), Revision 5, dated October 2017.

Enclosed is a copy of the NRC staffs draft safety evaluation (SE) for X-Energy Topical Report XEQAPD, Quality Assurance Program Description (Revision 2). Pursuant to 10 CFR Section 2.390, we believe that the enclosed draft SE does not contain proprietary information. However, if you believe that any information in the enclosure is proprietary, please identify such information line-by-line and define the basis pursuant to the criteria of 10 CFR Section 2.390.

To facilitate the NRC staffs review of your proprietary determinations, please provide a marked-up copy of the draft SE showing proposed changes and provide a summary table of the proposed changes. Twenty working days are provided for you to comment on any proprietary material contained in the SE. The final SE will be issued after making any necessary changes and a non-proprietary version will be made publicly available.

If you have any questions, please do not hesitate to contact Lucieann Vechioli via email at Lucieann.Vechioli@nrc.gov or by phone at 301-415-6035.

Sincerely,

/RA/

Benjamin Beasley, Chief Advanced Reactor Licensing Branch Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation

Enclosure:

Draft SE

s: Pkg. ML20142A286; Public Letter: ML20140A333, Non-Public Enclosure; ML20142A333

  • via email NRR-106 OFFICE NRR/DANU/UARL/PM NRR/DANU/UARL/LA NRR/DANU/UARL/BC NAME LVechioli SLent BBeasley DATE 05/22/20 05/21/20 06/08/20 OFFICE OGC NAME JEzell DATE 07/10/20