Letter Sequence Other |
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EPID:L-2023-TOP-0055, Submittal of Approved Terrapower, LLC, Topical Report: Principal Design Criteria for the Natrium Advanced Reactor (Approved, Closed) |
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MONTHYEARML23311A1392023-11-0606 November 2023
Terrapower, LLC, Transmittal of Topical Report, Radiological Release Consequences Methodology, Revision 0
Project stage: Request
ML23333A0722023-12-18018 December 2023
NRC 898 - Completeness Determination for the Terrapower, Llc. Radiological Release Consequences Methodology Topical Report Revision 0
Project stage: Other
ML23333A0732023-12-18018 December 2023
Email - Completeness Determination for the Terrapower, Llc. Radiological Release Consequences Methodology Topical Report Revision 0
Project stage: Other
ML24043A0422024-02-12012 February 2024
Withholding Proprietary Information from Public Disclosure - Terrapower, LLC, Radiological Release Consequences Methodology Topical Report
Project stage: Other
ML24103A2242024-04-24024 April 2024
Terrapower, LLC - Audit Plan for TP-LIC-RPT-0005, Radiological Release Consequences Methodology Topical Report, Revision 0 (Cac/Epid No. 000431/L-2023-TOP-0055)
Project stage: Other
ML24283A0662024-10-0808 October 2024
Submittal of Approved Terrapower, LLC, Topical Report: Principal Design Criteria for the Natrium Advanced Reactor
Project stage: Request
ML24304B0342024-10-30030 October 2024
Transmittal of Terrapower Plume Exposure Pathway Emergency Planning Zone Methodology Topical Report, Nat 3056 Revision 3
Project stage: Request
ML25024A0452025-01-23023 January 2025
Letter - Terrapower, LLC - Summary Report on the Regulatory Audit of Topical Report, TP-LIC-RPT-0005, Radiological Release Consequences Methodology Topical Report, Revision 0 (EPID No. L-2023-Top-0055
Project stage: Other
ML25024A0432025-01-23023 January 2025
Public Enclosure - Terrapower, LLC - Summary Report on the Regulatory Audit of Topical Report, TP-LIC-RPT-0005, Radiological Release Consequences Methodology Topical Report, Revision 0
Project stage: Other
ML25057A2902025-01-31031 January 2025
Terrapower, LLC - Draft Safety Evaluation of Nat-9391,Radiological Release Consequences Methodology Topical Report, Revision 0
Project stage: Draft Approval
ML25106A2642025-05-13013 May 2025
Terrapower, LLC - Final Safety Evaluation of Topical Report NAT-9391, Radiological Release Consequences Methodology Topical Report, Rev 0
Project stage: Approval
ML25106A2672025-05-13013 May 2025
Public - Enclosure - Terrapower, LLC - Final Safety Evaluation of Topical Report NAT-9391, Radiological Release Consequences Methodology Topical Report, Rev 0
Project stage: Approval
ML24282A9472025-09-10010 September 2025
Transmittal-Topical Report Withholding Determination - Terrapower, LLC NAT-9391, Rev. 0, Radiological Release Consequences Methodology
Project stage: Other
ML24278A2812025-09-12012 September 2025
NRC Form 897: Request for Withholding Proprietary Information from Public Disclosure - Terrapower, LLC, NAT-9391, Radiological Release Consequences Methodology Topical Report, Rev. 0
Project stage: Other
ML25237A2182025-09-12012 September 2025
Email: Request for Withholding Proprietary Information from Public Disclosure - Terrapower, LLC, NAT-9391-A, Revision 0, Radiological Release Consequence Methodology
Project stage: Other
ML25237A2202025-09-12012 September 2025
NRC 897: Request for Withholding Proprietary Information from Public Disclosure - Terrapower, LLC, NAT-9391-A, Revision 0, Radiological Release Consequence Methodology
Project stage: Other
2024-04-24
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Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 January 23, 2025 George Wilson Vice President, Regulatory Affairs TerraPower, LLC 15800 Northup Way Bellevue, WA 98008
SUBJECT:
TERRAPOWER, LLC -
SUMMARY
REPORT ON THE REGULATORY AUDIT OF TOPICAL REPORT, TP-LIC-RPT-0005, "RADIOLOGICAL RELEASE CONSQUENCES METHODOLOGY TOPICAL REPORT," REVISION 0 (EPID NO. L-2023-TOP-0055)
Dear George Wilson:
By letter dated November 6, 2023, TerraPower, LLC (TerraPower) submitted topical report (TR)
Radiological Release Consequences Methodology Topical Report, Revision 0 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML23311A138) to the U.S. Nuclear Regulatory Commission (NRC) staff for review. The TR contains an overview and description of the model developed to evaluate radiological release consequences for the Natrium sodium fast reactor design. On December 18, 2023, the NRC staff performed a completeness determination and found that the material presented in the TR provides technical information in sufficient detail to enable the NRC staff to conduct a detailed technical review (ML23333A070).
Enclosed is a summary report on the regulatory audit conducted by the NRC staff in connection with its ongoing review of the TR. The audit followed the plan dated April 24, 2024 (ML24103A224).
The audit summary report does not make any licensing conclusions or findings, but it is part of the administrative record of the NRC staffs review of the TR and may provide information supporting the NRC staffs safety evaluation. No requests for additional information were identified as part of the audit and there are no open items resulting from the audit. However, by letter dated July 26, 2024, TerraPower submitted a revision to the TR, renumbered as NAT-9391, Radiological Release Consequence Methodology Topical Report, Revision 0 (ML24208A181) to address the results of the audit. The report constitutes the final report on the audit.
If you have any questions regarding this matter, please contact me at (301) 415-5301 or via email at Stephanie.Devlin-Gill@nrc.gov.
Sincerely,
/RA/
Stephanie Devlin-Gill, Senior Project Manager Advanced Reactor Licensing Branch 1 Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation Project No.: 99902100
Enclosure:
As stated cc: TerraPower Natrium via GovDelivery
Package: ML25024A041 Letter: ML25024A045 Public
Enclosure:
ML25024A043 Non-Public
Enclosure:
ML25024A044 OFFICE NRR/DANU/UAL1:PM NRR/DANU/UAL1:PM NRR/DANU/UAL1:LA NAME DAtkinson SDevlin-Gill DGreene DATE 09/16/2024 09/18/2024 10/1/2024 OFFICE NRR/DANU/UTB2:BC NRR/DANU/UAL1:BC NAME CdeMessieres JBorromeo (MOrenak for)
DATE 01/02/2025 01/23/2025