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| {{#Wiki_filter:Dominion Energy Nuclear Connecticut, Inc. | | {{#Wiki_filter:}} |
| 5000 Dominion Boulevard, Glen Allen, VA 23060 Dominion Dominion Energy.com Energy December 21, 2021 U. S. Nuclear Regulatory Commission Serial No.: 21-419 Attention: Document Control Desk NRA/SS: RO Washington, DC 20555-0001 Docket Nos.: 50-423 License Nos.: NPF-49 DOMINION ENERGY NUCLEAR CONNECTICUT, INC.
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| MILLSTONE POWER STATION UNIT 3 LICENSE AMENDMENT REQUEST TO REVISE REACTOR CORE SAFETY LIMIT SUPPLEMENTAL INFORMATION By {{letter dated|date=December 8, 2020|text=letter dated December 8, 2020}}, Dominion Energy Nuclear Connecticut, Inc. (DENG) submitted a license amendment request (LAR) for Millstone Power Station Unit 3 (MPS3),
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| Facility Operating License Numbers NPF-49. The proposed change would revise the Technical Specification 2.1.1, "Safety Limit, Reactor Core," Safety Limit 2.1.1.2 to reflect the peak fuel centerline melt temperature specified in WCAP-17642-P-A, Revision 1, "Westinghouse Performance Analysis and Design Model (PAD5)."
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| Pursuant to discussions with the Nuclear Regulatory Commission's (NRC) Senior Project Manager for MPS3, additional information is being provided herein regarding the implementation plan for the requested amendments following approval by the NRC.
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| Specifically, the MPS3 Final Safety Analysis Report (FSAR), Sections 4.2.1.2, "Fuel Material", and 4.4.1.2, "Fuel Temperature Design Basis," will be revised as part of the implementation plan for the license amendments following their issuance, to include the revised fuel melt safety limit and its technical basis. Furthermore, the FSAR will be reviewed in its entirety and additional FSAR changes will be implemented, if required, to reflect the revised peak fuel centerline melt temperature limit.
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| If you have any questions or require additional information, please contact Mr. Shayan Sinha at (804) 273-4687.
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| ~7~7~~
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| Gerald T. Bischof Senior Vice President - Nuclear Operations and Fleet Performance COMMONWEALTH OF VIRGINIA COUNTY OF HENRICO The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by Mr. Gerald T.
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| Bischof, who is Senior Vice President - Nuclear Operations and Fleet Performance, of Dominion Energy Nuclear Connecticut, Inc. He has affirmed before me that he is duly authorized to execute and file the foregoing document in behalf of that company, and that the statements in the document are true to the best of his knowledge and belief.
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| Acknowledged before me this 21 S+ day of l)eUM~Y-, 2021.
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| My Commission Expires: J£tn, 31 , '2.0 2 '-1.
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| Kathryn Hill Barret Notary Public Commonwealth of Virginia Reg. No. 7905256 My Commission Expires January 31, 2024
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| Serial No. 21-419 Docket No. 50-423 Page 2 of 2 Commitment contained in this letter:
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| Update the MPS3 FSAR to include the revised fuel melt safety limit and its technical basis, as part of the implementation plan for the amendments approving the revised peak fuel centerline melt temperature limit.
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| cc: U.S. Nuclear Regulatory Commission Region I 2100 Renaissance Blvd, Suite 100 King of Prussia, PA 19406-2713 Richard V. Guzman Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08 C2 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station Director, Radiation Division Department of Energy and Environmental Protection 79 Elm Street Hartford, CT 06106-5127}}
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