ML25363A183
| ML25363A183 | |
| Person / Time | |
|---|---|
| Site: | 07003103 |
| Issue date: | 01/12/2026 |
| From: | Tekia Govan NRC/NMSS/DFM/FFLB |
| To: | Lorskulsint P Louisiana Energy Services |
| Shared Package | |
| ML25363A182 | List: |
| References | |
| EPID L-2025-LLA-0094 | |
| Download: ML25363A183 (0) | |
Text
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION Paul Lorskulsint, Chief Nuclear Officer and Head of Compliance Louisiana Energy Services, LLC P.O. Box 1789 Eunice, NM 88231
SUBJECT:
AMENDMENT 112 - APPROVAL OF LICENSE AMENDMENT REQUEST 25-02, LICENSING AMENDMENT FOR CHANGES TO INTEGRATED SAFETY ANALYSIS METHODOLGY (ENTERPRISE PROJECT IDENTIFICATION NUMBER L-2025-LLA-0094)
Dear Paul Lorskulsint:
By \
letter dated June 18, 2025 (Agencywide Documents Access and Management System
[ADAMS] Accession No. ML25169A157), Louisiana Energy Services, LLC (LES), dba Urenco USA (UUSA), requested the U.S. Nuclear Regulatory Commission (NRC) approval of the UUSA license amendment request (LAR) for changes to their integrated safety analysis (ISA) methodology. Labeled by UUSA as LAR 25-02, the desired is to update its ISA methodology to adopt the most current, more conservative, version of the Radiological Assessment System for Consequence Analysis (RASCAL) Code software which makes independent dose and consequence projections during radiological incidents and emergencies and well as associated changes for future chemical consequence analyses to support continued plant expansion.
Specifically, UUSA desires to change from RASCAL 3.0.5 to RASCAL 4.3.4.
The NRC staff has completed its review of LAR 25-02, in conjunction with the response to the NRC request for additional information (ML25245A252) and finds that the changes proposed are acceptable. Therefore, LAR 25-02 is approved. Enclosure 1 is the safety evaluation report that documents the NRC staffs review. Based on this review, Enterprise Project Identification Number L-2025-LLA-0094 is considered closed.
Additionally sub-paragraph b to License Condition 10 of SNM-2010 will be amended as follows (see bolded):
b.
Safety Analysis Report (SAR) dated December 12, 2003, as revised by letters dated February 27, 2004; July 30, 2004; September 30, 2004; April 22, 2005; April 29, 2005; May 25, 2005; June 10, 2005; February 16, 2006; February 28, 2006; March 16, 2006; March 24, 2006; January 29, 2007; April 10, 2007; July 30, 2007; October transmitted with this letter contains Security Related Information. When separated from Enclosure 3, this letter and Enclosures 1 and 2 are decontrolled.
January 12, 2026
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION P. Lorskulsint 2
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION 12, 2007; October 19, 2007; November 2, 2007; November 12, 2007; November 30, 2007; February 28, 2008; November 19, 2008; January 23, 2009; March 5, 2009;September 24, 2009; November 25, 2009; January 29, 2010; March 31, 2010; May 2, 2010; May 16, 2010; May 23, 2010; May 25, 2010; May 26, 2010; June 2, 2010; June 3, 2010; June 23, 2010; July 16, 2010; March 22, 2011; March 29, 2011; April 11, 2011; September 19, 2011; September 22, 2011; June 25, 2019; September 8, 2020 (Agencywide Documents Access and Management System (ADAMS) ML20262H070); August 3, 2021 (ML21217A141); December 10, 2021 (ML21349A142); April 27, 2022 (ML22122A059), August 3, 2023 (ML23220A389) and June 18, 2025 (ML25169A161).
The above changes are documented in Amendment 112 to UUSA Materials License SNM-2010 and are attached to this letter as Enclosures 2 and 3.
Because all the activities noted above involve administrative actions, the NRC staff determined that the proposed activities do not individually or cumulatively have a significant effect on the environment. Therefore, in accordance with Title 10 of the Code of Federal Regulations (10 CFR) 51.22(c)(11), neither an Environmental Assessment nor an Environmental Impact Statement is warranted for this action.
In accordance with 10 CFR Part 2 Agency Rules of Practice and Procedure, a copy of this letter and Enclosure 3 will be available electronically for public inspection in the NRC Public Document Room (PDR) or from the Publicly Available Records component of NRCs ADAMS.
ADAMS is accessible from the NRC website at: http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room). The PDR is open by appointment. To make an appointment to visit the PDR, please send an email to PDR.Resource@nrc.gov or call 1-800-397-4209 or 301-415-4737, between 8 a.m. and 4 p.m. eastern time (ET), Monday through Friday, except Federal holidays.
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION P. Lorskulsint 3
OFFICIAL USE ONLY - SECURITY-RELATED INFORMATION If you have any questions regarding this letter, please contact Jonathan Rowley at 301-415-4053, or via email at Jonathan.Rowley@nrc.gov.
Sincerely, Tekia Govan, Acting Chief Fuel Facility Licensing Branch Division of Fuel Management Office of Nuclear Material Safety and Safeguards Docket No. 70-3103 License No. SNM-2010
Enclosures:
1.
Safety Evaluation Report (Public) 2.
Materials License SNM-2010 Amendment 112 (Public) 3.
Materials License SNM-2010 Amendment 112 (Non-Public) cc: les@listmgr.nrc.gov Signed by Govan, Tekia on 01/12/26
ML25363A182 (pkg), ML25363A183 (ltr), ML25363A184 (encl 1),
ML25363A185 (encl 2), ML25363A186 (encl 3, non-public)
OFFICE NMSS/DFM NMSS/DFM NMSS/DFM NMSS/DFM NAME JRowley JGoodridge DJohnson TGovan DATE 12/30/2025 1/2/2026 1/6/2026 1/12/2026