ML25106A314

Cover Letter - Set 11 of Requests for Additional Information for the Chemical Safety Portion of the TRISO-X License Application Review (Public)

ML25106A314
Person / Time
Site:	Triso-X
Issue date:	05/01/2025
From:	Matt Bartlett NRC/NMSS/DFM/FFLB
To:	Wheeler J Triso-X
Shared Package
ML25106A313	List: ML25106A314
References
EPID L-2022-NEW-0005
Download: ML25106A314 (1)

Text

OFFICIAL USE ONLYSECURITY-RELATED INFORMATION OFFICIAL USE ONLYSECURITY-RELATED INFORMATION UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Jennifer K. Wheeler Director, Regulatory Affairs TRISO-X, LLC 801 Thompson Avenue Rockville, MD 20852

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION AS SET 11 FOR THE CHEMICAL SAFETY INFORMATION REGARDING THE TRISO-X, LLC LICENSE APPLICATION FOR A FUEL FABRICATION FACILITY (ENTERPRISE PROJECT IDENTIFICATION NUMBER L-2022-NEW-0005)

Dear Jennifer Wheeler:

The U.S. Nuclear Regulatory Commission (NRC) staff has developed subsequent requests for additional information (RAIs) as set 11 to support the review of the TRISO-X, LLC safety and safeguards license application. Your application for a new fuel fabrication facility located in Oak Ridge, Tennessee was submitted via letter dated April 5, 2022 (Agencywide Documents Access and Management System [ADAMS] Accession No. ML22101A200) and supplemented by letters dated October 13, 2022 (ML22286A144) and November 4, 2022 (ML22308A251) and revised license application submitted by letters dated December 30, 2024 (ML24365A254) and January 31, 2025 (ML25031A449).

Our review of your license application has identified the need for an additional RAI on the chemical safety portion of the review. The additional information requested in the public enclosure to this letter should be provided within 30 days from April 21, 2025, the date the draft RAI was emailed to you to confirm mutual understanding of issues. An alignment call to discuss the draft RAI was held on April 24, from 8:00-9:00am. The TRISO-X staff indicated they understand the RAI. They will post to the portal three examples of the updated internal chemical safety calculations that include more information on the conservativeness of their chemical modeling assumptions. In the RAI response, they will describe the updates incorporated into the calculation packages. The NRC and TRISO-X staff agreed that this RAI does not require any updates to the license application.

Please let us know if you have an interest in holding a call to discuss the draft responses prior to formal submittal, consistent with NRC staff RAI process described in LIC-FM-3, section 2.10.1(b) (ML22208A272). Extending the formal responses beyond the 30 days, the need for supplements, or a second round of RAIs may result in an extension of the proposed review schedule beyond May 2026 (ML23305A193).

The Enclosure transmitted herewith contains Security-Related Information. When separated from the Enclosure, this document is decontrolled.

May 1, 2025

OFFICIAL USE ONLYSECURITY-RELATED INFORMATION J. Wheeler 2

OFFICIAL USE ONLYSECURITY-RELATED INFORMATION In accordance with Title 10 of the Code of Federal Regulations, Section 2.390 of the NRCs Agency Rules of Practice and Procedure, a copy of this letter will be available electronically for public inspection in the NRC Public Document Room (PDR) or from the Publicly Available Records component of the NRCs ADAMS. The PDR is open by appointment only. You may submit your request to the PDR via email at PDR.Resource@nrc.gov or call 1-800-397-4209 between 8:00 a.m. and 4:00 p.m. (EST), Monday through Friday, except Federal holidays. The NRCs ADAMS is accessible from the NRC website site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

If you have any questions regarding this communication, please contact me at 301-415-7154, or via email to Matthew.Bartlett@nrc.gov.

Sincerely, Matthew Bartlett, Senior Project Manager Fuel Facility Licensing Branch Division of Fuel Management Office of Nuclear Material Safety and Safeguards Docket No. 07007027

Enclosure:

1. RAI (Non-Public) cc: trisox@listmgr.nrc.gov Signed by Bartlett, Matthew on 05/01/25

ML25106A313(pkg, non-public); ML25106A314(ltr),

ML25106A315(encl, non-pubic)

OFFICE NMSS/DFM NMSS/DFM NMSS/DFM NMSS/DFM NAME SPoy JGoodridge MBartlett SLav DATE 4/16/2025 4/17/2025 4/18/2025 4/24/2025 OFFICE NMSS/DFM NAME MBartlett DATE 5/1/2025