ML18262A215

Louisiana Energy Services, LLC - LAR 18-04 Addition of MCNP6 for Nuclear Criticality Safety Analysis

ML18262A215
Person / Time
Site:	07003103
Issue date:	09/13/2018
From:	Cowne S Louisiana Energy Services, URENCO USA
To:	Document Control Desk, Office of Nuclear Material Safety and Safeguards
References
LES-18-089-NRC
Download: ML18262A215 (3)

Text

LES-18-089-NRC Attn: Document Control Desk Director Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Louisiana Energy Services, LLC NRC Docket No. 70-3103 SEP 1 3 2018

References:

Nuclear Criticality Safety Validation Report, MONK BA Validation and Verification

Subject:

LAR 18-04 Addition of MCNP6 for Nuclear Criticality Safety Analysis Pursuant to the requirements of SNM-2010 License Condition 25, License Condition 30, and in accordance with 10 CFR 70.34, UREN CO USA (UUSA) hereby requests an addition to the existing Nuclear Criticality Safety Validation Report and an amendment to the UUSA Safety Analysis Report (SAR).

The proposed change in this License Amendment Request (LAR) is to implement the MCNP6 (version 1.0) as an additional computer code for criticality applications at UUSA. The existing licensed criticality code for performing various nuclear criticality safety analyses (NCSA) is MONKBA.

UUSA considers the information provided in Enclosures 1, 2, 3, and 4 of this license amendment as proprietary and requests that the information be withheld from public disclosure in accordance with 10 CFR § 2.390(a)(4). Enclosure 5 provides an affidavit supporting this request. provides a description, technical analysis, basis, and safety significance of the proposed change. Enclosure 2 provides applicable portions of the License Basis Documents proposed to be revised with the changes annotated on each page. Enclosures 3 and 4 provide the Nuclear Criticality Safety Validation and Verification Report(s) for the proposed methodology.

UUSA appreciates the efforts of the NRC staff in supporting the review and approval of this important amendment in a timely manner. Should there be any questions concerning this submittal please contact Wyatt Padgett, Licensing and Performance Assessment Manager, at 575-394-5257.

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Chief Nuclear Officer and Compliance Manager

Enclosures:

1) Description of Proposed Changes (LAR-18-04)

2) Markup Pages to Safety Analysis Report

3) URENCO USA (UUSA) MCNP6 Validation, NCS-REP-002-00

4) URENCO USA (UUSA) MCNP6 Verification, NCS-REP-003-00

5) Affidavit LES,PO Box 1789, Eunice, New Mexico 88231,USA T: +1 575 394 4646 F: +1 575 394 4545 W: www.urenco.com/LES

LES-18-089-NRC Cc:

Karl Sturzebecher, Project Manager - UUSA U.S. Nuclear Regulatory Commission Karl.Sturzebecher@NRC.gov Jacob Zimmerman, Enrichment & Conversion Branch Chief U.S. Nuclear Regulatory Commission Office of Nuclear Material Safety and Safeguards Jacob.Zimmerman@NRC.gov Joel Rivera-Ortiz, Senior Fuel Facility Inspector U.S. Nuclear Regulatory Commission Joel.Rivera-Ortiz@NRC.gov Robert Williams, Chief - Region II, Projects Branch I U.S. Nuclear Regulatory Commission Robert.Williams@NRC.gov

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Withhold from Public Disclosure Under 10 CFR 2.390 ENCLOSURE 5 Affidavit I, Stephen Cowne, being duly sworn, state that I am the Chief Nuclear Officer and Compliance Manager for Louisiana Energy Services (LES), dba UREN CO USA (UUSA);

that I am authorized on the part of said company to sign and file with the Nuclear Regulatory Commission ("NRC") this document; and that all statements made and matters set forth herein are true and correct to the best of my knowledge, information, and belief:

1. LES wishes to have withheld from public disclosure the following document:

• Description of Proposed Changes (LAR-18-04)

• Markups to Licensing Basis Documents

• URENCO USA (UUSA) MCNP6 Validation, NCS-REP-002-00

• URENCO USA (UUSA) MCNP6 Verification, NCS-REP-003-00

2. The information contained in the document cited in 1 above for which exemption from public disclosure is requested is proprietary information related to commercial aspects of the URENCO USA Facility. LES requests that this information be exempt from disclosure pursuant to the provisions in 10 CFR Part 2.390(a)(4).

3. Public disclosure of the information in the above enclosure to this submittal has the potential to result in substantial harm to the competitive position of LES, provide valuable business information to competitors of LES which they could duplicate without having to expend their own resources to develop, and reduce or foreclose the availability of profit opportunities.

4. The information stated in this affidavit has been submitted in accordance with the applicable parts of 10 CFR 2.390 and the guidance contained in NUREG-1556, Vol.

20, Appendix.4.

Step n Cowne Dat~

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Chief Nuclear Officer and Compliance Manager Louisiana Energy Services, LLC I certify the above named person appeared before me and executed this document on this __!.l_day of September, 2018.

Notary Public My commission expires: :J.-t7 ~..fl) ' e OFFICIAL SEAL DEBORAH SONNAMAKER Notary Public

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