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Category:Exemption from NRC Requirements
MONTHYEARML24067A0372024-03-20020 March 2024 Federal Register Notice - Issuance of Multiple Exemptions Regarding 10 CFR Part 73 - February 2024 ML24032A3062024-02-15015 February 2024 Exemption from Select Requirements of 10 CFR Part 73 - Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting ML23334A2462023-11-30030 November 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML20342A0032020-12-18018 December 2020 Exemption from Annual Force On-Force Exercise Requirement of 10 CFR Part 73, Appendix B, General Criteria for Security Personnel, Subsection VI.C.3(I)(1)I (EPID L-2020-LLE-0225 (Covid 19)) ML20182A7182020-07-10010 July 2020 Temporary Exemption from Certain Requirements of 10 CFR Part 73, Appendix B, General Criteria for Security Personnel, Section VI (EPID L-2020-LLE-0106 (COVID-19)) ML1001508612010-03-0909 March 2010 Transmittal Letter - Exemption from Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50, to Allow Use of Optimized Zirlo as Fuel Rod Cladding Material ML1000706442010-03-0101 March 2010 Exemption from the Requirements of 10 CFR Part 73, Section 73.55 ML1000706862010-03-0101 March 2010 FRN: General Notice. Virgil C. Summer Nuclear Station, Unit 1 - FRN - Exemption from the Requirements of 10 CFR Part 73, Section 73.55 NRC-2010-0067, FRN: General Notice. Virgil C. Summer Nuclear Station, Unit 1 - FRN - Exemption from the Requirements of 10 CFR Part 73, Section 73.552010-03-0101 March 2010 FRN: General Notice. Virgil C. Summer Nuclear Station, Unit 1 - FRN - Exemption from the Requirements of 10 CFR Part 73, Section 73.55 ML0932402052009-12-17017 December 2009 One Time Exemption from the Requirements of 10 CFR Part 50, Appendix E, Section IV.F.2.b ML0932401592009-12-17017 December 2009 One Time Exemption from the Requirements of 10 CFR Part 50, Appendix E, Section IV.F.2.b ML0812208272008-05-23023 May 2008 Correction to Exemption Issued on March 13, 2008, from the Requirements of 10 CFR Part 50, Section 50.44, 50.46, and Appendix K ML0800704662008-03-13013 March 2008 V.C. Summer Nuclear Station - Exemption from the Requirements of 10 CFR Part 50, Sections 50.44, and Appendix K 2024-03-20
[Table view] Category:Federal Register Notice
MONTHYEARML24067A0372024-03-20020 March 2024 Federal Register Notice - Issuance of Multiple Exemptions Regarding 10 CFR Part 73 - February 2024 ML23235A0422023-09-0505 September 2023 VC Summer SLRA Availability FRN ML18198A3002019-03-0808 March 2019 Combined License Termination Federal Register Notice ML18278A2802018-10-10010 October 2018 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 10/23/2018 ML18276A1562018-10-0505 October 2018 Federal Register Notice of Corrected Orders of the Indirect License Transfer Issuance NRC-2018-0043, Federal Register Notice of Corrected Orders of the Indirect License Transfer Issuance2018-10-0505 October 2018 Federal Register Notice of Corrected Orders of the Indirect License Transfer Issuance ML18243A0872018-09-0505 September 2018 Individual Notice of Consideration of Issuance of Amendment to Renewed Facility Operating License NPF-12, Proposed No Significant Hazards Consideration,(Exigent Circumstances) ML18243A1162018-09-0505 September 2018 Exigent 14-day FRN ML18173A1792018-08-0707 August 2018 OEDO-17-00070 - Notice of Issuance of Director'S Decision, 2.206 Petition for Emergency Enforcement Action Per 10 CFR 2.206 at Listed U.S. Reactors with Forged Components and Parts Manufactured at France'S AREVA-Le Creusot Forge and Japan C NRC-2018-0140, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 7/17/20182018-07-0505 July 2018 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 7/17/2018 ML18180A2182018-07-0505 July 2018 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 7/17/2018 NRC-2018-0096, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 22, 20182018-05-14014 May 2018 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 22, 2018 ML18127B7232018-05-14014 May 2018 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 22, 2018 ML18067A1522018-03-26026 March 2018 Individual Federal Register Notice - Vogtle Electric Generating Plant Units 3 and 4 LAR 17-038 ML18017B0182018-03-0505 March 2018 Federal Register Notice of Consideration of Approval of Application Regarding Proposed Indirect License Transfer and Opportunity for a Hearing ML18016A6452018-03-0505 March 2018 Transmittal Letter of Federal Register Notice of Consideration of Approval of Application Regarding Proposed Indirect License Transfer and Opportunity for a Hearing ML17198A3292017-08-30030 August 2017 OEDO-17-00070 - Acknowledgement Letter, Paul Gunter, Beyond Nuclear, Petition for Emergency Enforcement Action Per 10 CFR 2.206 at Listed U.S. Reactors with Forged Components and Parts Manufactured at France'S AREVA-Le Creusot Forge and Jap ML17200A0652017-08-30030 August 2017 OEDO-17-00070 - Acknowledgement FRN, Paul Gunter, Beyond Nuclear, 2.206 Petition for Emergency Enforcement Action Per 10 CFR 2.206 at Listed U.S. Reactors with Forged Components and Parts Manufactured at France'S AREVA-Le Creusot Forge and NRC-2017-0142, Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: July 5,2017-06-19019 June 2017 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: July 5, 2017 ML17153A3782017-06-19019 June 2017 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: July 5, 2017 NRC-2017-0047, Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: March 82017-03-0202 March 2017 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: March 8, 201 ML17038A1292017-03-0202 March 2017 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: March 8, 201 ML17003A2422017-01-24024 January 2017 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: February 7, NRC-2016-0240, FRN: Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: De2016-11-22022 November 2016 FRN: Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: Decembe ML16313A1592016-11-22022 November 2016 FRN: Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Consideration and Containing SUNSI and Order Imposing Procedures for Access to SUNSI - Publication Date: Decembe ML16271A0922016-09-28028 September 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: October 11, 2016 NRC-2016-0180, Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations- Publication Date: August 30, 20162016-08-18018 August 2016 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations- Publication Date: August 30, 2016 ML16229A2552016-08-18018 August 2016 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations- Publication Date: August 30, 2016 NRC-2016-0161, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: August 16, 20162016-08-0303 August 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: August 16, 2016 ML16215A2272016-08-0303 August 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: August 16, 2016 ML16145A2252016-06-0707 June 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: June 7, 2016 NRC-2016-0107, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: June 7, 20162016-06-0707 June 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: June 7, 2016 NRC-2016-0100, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 24, 20162016-05-13013 May 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 24, 2016 ML16131A7952016-05-13013 May 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 24, 2016 ML16061A3012016-03-0202 March 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: March 15, 2016 ML15356A5992015-12-29029 December 2015 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: January 5, 2016 NRC-2015-0269, Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: December 8, 20152015-11-27027 November 2015 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: December 8, 2015 ML15328A5502015-11-27027 November 2015 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: December 8, 2015 NRC-2015-0204, Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - September 1, 20152015-08-21021 August 2015 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - September 1, 2015 ML15231A8382015-08-21021 August 2015 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - September 1, 2015 ML15218A6252015-08-14014 August 2015 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: August 14, 2015 ML15203A8332015-08-0303 August 2015 Withdrawal of an Amendment Request, Enclosure 1, Federal Register Notice NRC-2014-0271, Withdrawal of an Amendment Request, Enclosure 1, Federal Register Notice2015-08-0303 August 2015 Withdrawal of an Amendment Request, Enclosure 1, Federal Register Notice ML15148A3762015-06-0101 June 2015 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Published June 9, 2015 ML15120A2272015-05-0101 May 2015 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: May 12, 2015 NRC-2015-0104, Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication in April 28, 2015, Federal Register2015-04-20020 April 2015 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication in April 28, 2015, Federal Register ML15106A9162015-04-20020 April 2015 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication in April 28, 2015, Federal Register ML13018A2392015-04-0808 April 2015 G20110171 - Letter to Petitioner Saporito on Proposed Director'S Decision Regarding 2.206 Petition Dated: March 12, 2011 ML15022A6532015-01-26026 January 2015 Biweekly Sholly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: February 3, 2015 ML14303A3812014-10-31031 October 2014 Biweekly Sholly FRN - Application and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: November 12, 2014 2024-03-20
[Table view] Category:Letter
MONTHYEARIR 05000395/20240022024-08-12012 August 2024 Integrated Inspection Report 05000395/2024002 ML24180A0062024-08-0505 August 2024 Issuance of Amendment No. 227 to Modify Technical Specification 3.8.3.1 to Increase Completion Time for 120-Volt A.C. Vital Busses ML24218A3002024-08-0101 August 2024 Environmental Review Response to NRC Requests for Additional Information and Response to NRC Requests for Confirmation of Information Set 1 ML24158A3882024-07-31031 July 2024 Issuance of Amendment No. 226 to Change Emergency Plan Staff Augmentation Times and Relocate Emergency Operations Facility ML24162A3292024-07-0505 July 2024 Letter to E Carr - V.C. Summer Unit 1 - Summary of the May 2024 Audit Regarding the Environmental Review of the Subsequent License Renewal Application IR 05000395/20240112024-06-26026 June 2024 – Comprehensive Engineering Team Inspection Report 05000395/2024011 ML24178A1192024-06-25025 June 2024 Update to License Amendment Request- Inverter Allowed Outage Time (AOT) Extension ML24178A2422024-06-25025 June 2024 2023 Annual Report of Emergency Core Cooling System (ECCS) Model, Changes Pursuant to the Requirements of 10 CFR 50.46 ML24177A1382024-06-25025 June 2024 Aging Management Audit Report- VC Summer, Unit 1 - Subsequent License Renewal Application ML24177A2792024-06-20020 June 2024 Preparation and Scheduling of Operator Licensing Examinations ML24171A0152024-06-17017 June 2024 Update to Subsequent License Renewal Application (SLRA) Response to NRC Request for Additional Information Set 2 Safety Review ML24157A3352024-06-0606 June 2024 – Notification of an NRC Cybersecurity Baseline Inspection (NRC Inspection Report 05000395-2024404 and Request for Information ML24155A2042024-05-31031 May 2024 Proposed Alternative Request RR-24-123, Containment Unbonded Post-Tensioning System Inservice Inspection Requirements ML24155A1462024-05-30030 May 2024 Update to Subsequent License Renewal Application (SLRA) -Response to NRC Request for Additional Information Set 1 Response to NRC Request for Confirmation of Information Set 1 and Supplement 3 ML24143A1792024-05-22022 May 2024 Special Report 2024-001-01 for Virgil C. Summer Nuclear Station (Vcsns), Unit 1, Waste Gas System Inoperability ML24141A2822024-05-20020 May 2024 (Vcsns), Unit 1 - License Amendment Request - Emergency Response Organization (ERO) Augmentation Time Change, Emergency Operations Facility Relocation and Other Emergency Plan Changes IR 05000395/20240012024-05-10010 May 2024 Integrated Inspection Report 05000395/2024001 ML24129A2002024-05-0606 May 2024 Update to Subsequent License Renewal Application, Supplement 2 IR 05000395/20240402024-05-0101 May 2024 95001 Supplemental Inspection Report 05000395/2024040 and Follow-Up Assessment Letter ML24121A1002024-04-29029 April 2024 Response to Request for Additional Information Regarding Alternative Request RR-5-V2 ML24120A2072024-04-29029 April 2024 Submittal of Annual Radiological Environmental Operating Report ML24116A2052024-04-23023 April 2024 Annual Radioactive Effluent Release Report ML24109A1792024-04-19019 April 2024 Aging Management Audit Plan Regarding the Subsequent License Renewal Application Review ML24108A0392024-04-18018 April 2024 Letter to E Carr-V.C. Summer Unit 1- Regulatory Audit Regarding the Environmental Review of the Subsequent License Renewal Application ML24108A0672024-04-17017 April 2024 Submittal of Summary for Condition of the Service Water Intake Structure Provided in Accordance with License Condition 2.C.5.d ML24100A7312024-04-0909 April 2024 Personnel Exposure and Monitoring Annual Report ML24095A2072024-04-0101 April 2024 Update to Subsequent License Renewal Application (SLRA) Supplement 1 ML24088A2062024-03-26026 March 2024 Annual Operating Report ML24087A2262024-03-26026 March 2024 License Amendment Request - Inverter Allowed Outage Time Extension Response to Request for Additional Information ML24087A2182024-03-26026 March 2024 (Vcsns), Unit 1 - License Amendment Request - Emergency Response Organization (ERO) Augmentation Time Change, Emergency Operations Facility Relocation and Other Emergency Plan Changes - Response to Request. ML24067A0232024-03-0707 March 2024 (Vcsns), Unit 1 - Readiness for 95001 Supplemental Inspection; EA-23-093 IR 05000395/20230062024-02-28028 February 2024 Annual Assessment Letter for Virgil C. Summer Nuclear Station - Report 05000395/2023006 IR 05000395/20244032024-02-27027 February 2024 Security Baseline Inspection Report 05000395/2024403 ML24057A1132024-02-22022 February 2024 Special Report 2024-001 Waste Gas System Inoperability ML24051A0112024-02-20020 February 2024 Fws to NRC, List of Threatened and Endangered Species That May Occur in Proposed Project Location or May Be Affected by Proposed Project for V.C. Summer SLR ML24057A0612024-02-19019 February 2024 and Virgil C. Summer Power Nuclear Stations - Nuclear Property Insurance Coverage ML24032A3062024-02-15015 February 2024 Exemption from Select Requirements of 10 CFR Part 73 - Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting ML24040A1802024-02-12012 February 2024 Notification of NRC Supplemental Inspection (95001) and Request for Information IR 05000395/20244012024-02-0808 February 2024 Security Baseline Inspection Report 05000395/2024401 ML24038A0322024-02-0707 February 2024 (Vcsns), Unit 1, 10 CFR 21 Report - Emergency Diesel Generator Flash Contactor Relay IR 05000395/20230042024-01-31031 January 2024 Integrated Inspection Report 05000395/2023004 ML24022A1202024-01-22022 January 2024 Notification of Target Set Inspection and Request for Information (NRC Inspection Report 05000395/2024403) ML24022A1582024-01-22022 January 2024 (Vcsns), Unit 1 - Reply to a Notice of Violation: EA-23-093 ML24018A0112024-01-18018 January 2024 CFR 21 Report Emergency Diesel Generator Fuel Oil Piping ML23361A1042023-12-21021 December 2023 Inservice Testing Program for Pumps and Valves Fifth Interval Update and Associated Relief and Alternative Requests IR 05000395/20230912023-12-21021 December 2023 Final Significance Determination of a White Finding and Notice of Violation and Assessment Followup Letternrc Inspection Report 05000395/2023091 ML23354A1802023-12-20020 December 2023 301 Examination Report with Cover Letter ML23347A0492023-12-12012 December 2023 Technical Specification Bases Changes Updated Through November 2023 ML23334A2462023-11-30030 November 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML23334A2372023-11-30030 November 2023 (Vvsns), Unit 1 - Annual Commitment Change Summary Report 2024-08-05
[Table view] |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Narch q, 2(110 Mr. Thomas D. Gatlin Vice President, Nuclear Operations South Carolina Electric & Gas Company Post Office Box 88 Jenkinsville, SC 29065
SUBJECT:
VIRGIL C. SUMMER NUCLEAR STATION, UNIT 1 - EXEMPTION FROM REQUIREMENTS OF 10 CFR SECTION 50.46 AND APPENDIX'K TO 10 CFR PART 50, TO ALLOW USE OF OPTIMIZED ZIRLOTM AS FUEL ROD CLADDING MATERIAL (TAC NO. ME1489)
Dear Mr. Gatlin:
The Nuclear Regulatory Commission has approved the enclosed exemption from specific requirements of Title 10 of the Code of Federal Regulations (10 CFR), Section 50.46, "Acceptance criteria for emergency core cooling systems [ECCS] for light-water nuclear power reactors," and Appendix K to 10 CFR Part 50, "ECCS Evaluation Models," for the Virgil C.
Summer Nuclear Station, Unit 1. This action is in response to your application for an exemption dated June 9,2009, to allow the use of Optimized ZIRLO' for fuel rod cladding.
A copy of the exemption is enclosed. The exemption has been forwarded to the Office of the Federal Register for publication.
Sincerely, i{)Aj.4j ~I-Robert E. Martin, Senior Project Manager Plant Licensing Branch 2-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-395
Enclosure:
Exemption cc w/encl: Distribution via Listserv
7590-01-P UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION SOUTH CAROLINA ELECTRIC AND GAS COMPANY VIRGIL C. SUMMER NUCLEAR STATION, UNIT 1 DOCKET NO 50-395 EXEMPTION
1.0 BACKGROUND
The South Carolina Electric and Gas Company (SCE&G, the licensee) is the holder of Facility Operating License No. NPF-12 which authorizes operation of the Virgil C. Summer Nuclear Station, Unit 1 (VCSNS). The license provides, among other things, that the facility is subject to all rules, regulations, and orders of the Nuclear Regulatory Commission (NRC, the Commission) now or hereafter in effect.
The facility consists of a pressurized-water reactor located in Fairfield County in South Carolina.
2.0 REQUEST/ACTION Title 10 of the Code of Federal Regulations (10 CFR) Section 50.46, "Acceptance criteria for emergency core cooling systems for light-water nuclear power reactors," requires, among other items, that:
Each boiling or pressurized light-water nuclear power reactor fueled with uranium oxide pellets within cylindrical zircaloy or ZIRLO cladding must be provided with an emergency core cooling system (ECCS) that must be designed so that its calculated cooling performance follOWing postUlated
-2 loss-of-coolant accidents [LOCAs] conforms to the criteria set forth in paragraph (b) of this section.
Appendix K to 10 CFR Part 50, "ECCS Evaluation Models," requires, among other items, that the rate of energy release, hydrogen generation, and cladding oxidation from the metal/water reaction shall be calculated using the Baker-Just equation. The regulations of 10 CFR 50.46 and 10 CFR Part 50, Appendix K, make no provision for use of fuel rods clad in a material other than zircaloy or ZIRLO'. Since the chemical composition of the Optimized ZIRLO' alloy differs from the specifications for zircaloy or ZIRLO TM, a plant-specific exemption is required to allow the use of the Optimized ZIRLO' alloy as a cladding material at VCSNS. Therefore, by letter dated June 9, 2009, the licensee requested an exemption that would allow the use of Optimized ZIRLO' fuel rod cladding at VCSI\lS.
3.0 DISCUSSION Pursuant to 10 CFR 50.12, the Commission may, upon application by any interested person or upon its own initiative, grant exemptions from the requirements of 10 CFR Part 50 when (1) the exemptions are authorized by law, will not present an undue risk to public health and safety, and are consistent with the common defense and security; and (2) when special circumstances are present.
Authorized by Law This exemption results in allowing the use of Optimized ZIRLO' fuel rod cladding material at the VCSNS. As stated above, 10 CFR 50.12 allows the NRC to grant exemptions from the requirements of 10 CFR Part 50. The NRC staff has determined that granting of the licensee's proposed exemption will not result in a violation of the Atomic Energy Act of 1954, as amended, or the Commission's regulations. Therefore, the exemption is authorized by law.
No Undue Risk to Public Health and Safety
-3 The underlying purpose of 10 CFR 50.46 is to establish acceptance criteria for adequate ECCS performance. By letter dated June 10, 2005, the NRC staff issued a safety evaluation (Addendum 1 SE) approving Addendum 1 to Westinghouse Topical Report WCAP-1261 O-P-A and CENPD-404-P-A, "Optimized ZIRLO',, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML051670408), wherein the NRC staff approved the use of Optimized ZIRLO' as a fuel cladding material. The NRC staff approved the use of Optimized ZIRLO'as a fuel cladding material based on: 1) similarities with standard ZIRLO',
- 2) demonstrated material performance, and 3) a commitment to provide irradiated data and validate fuel performance models ahead of burnups achieved in batch application. The NRC staff's safety evaluation for Optimized ZIRLO' includes 10 conditions and limitations for its use.
As previously documented in that safety evaluation, and subject to compliance with the specific conditions of approval established therein, the NRC staff finds that the applicability of the ECCS acceptance criteria to Optimized ZIRLOTM has been demonstrated by Westinghouse. Ring compression tests performed by Westinghouse on Optimized ZIRLOTM (documented in Appendix B of Addendum1-A to WCAP-12610-P-A and CENPD-404-P-A, "Optimized ZIRLOTM," July 2006, ADAMS Accession No. ML062080576) demonstrate an acceptable retention of post-quench ductility up to 10 CFR 50.46 limits of 2200 degrees Fahrenheit (OF) and 17 percent equivalent clad reacted (ECR). Furthermore, the NRC staff concludes that oxidation measurements provided by Westinghouse in a letter to the NRC, "SER
[Safety Evaluation Report] Compliance with WCAP-12610-P-A & CENPD-404-P-A Addendum 1-A 'Optimized ZIRLOTM' (Proprietary)," LTR-NRC-07-58, November 2007, ADAMS Accession No. ML073130562) illustrate that oxide thickness (and associated hydrogen pickup) for Optimized ZIRLOTM at any given burnup would be less than for both zircaloy-4 and ZIRLOTM.
Hence, the NRC staff concludes that Optimized ZIRLOTM would be expected to maintain better post-quench ductility than ZIRLOTM. This finding is further supported by an ongoing loss-of
-4 coolant accident (LOCA) research program at Argonne National Laboratory, which has identified a strong correlation between cladding hydrogen content (due to in-service corrosion) and post-quench ductility.
In addition, utilizing currently-approved LOCA models and methods, the licensee states that Westinghouse will perform an evaluation to ensure that the Optimized ZIRLOTM fuel rods continue to satisfy 10 CFR 50.46 acceptance criteria. For the reasons stated above, the NRC staff finds that granting the exemption request for the VCSNS will be consistent with the underlying purpose of the regulation.
Paragraph 1.A.5 of Appendix K to 10 CFR Part 50 states that the rates of energy release, hydrogen concentration, and cladding oxidation from the metal-water reaction shall be calculated using the Baker-Just equation. Since the Baker-Just equation presumes the use of zircaloy clad fuel, strict application of the rule would not permit use of the equation for Optimized ZIRLOTM cladding for determining acceptable fuel performance. However, the NRC staff has found that metal-water reaction tests performed by Westinghouse on Optimized ZIRLOTM (documented in Appendix B ofWCAP-12610-P-A and CENPD-404-P-A, Addendum 1-A and subject to compliance with the specific conditions of approval established therein) demonstrate conservative reaction rates relative to the Baker-Just equation. Thus, the NRC staff finds that the use of Optimized ZIRLO' will achieve the underlying purpose of paragraph 1.A.5 of Appendix K in this circumstance.
Based on the above, no new accident precursors are created by using Optimized ZIRLO TM, thus, the probability of postulated accidents is not increased. Also, based on the above, the consequences of postulated accidents are not increased. In addition, the licensee will use NRC-approved methods for the reload design process for VCSNS reloads with
-5 Optimized ZIRLO'. Therefore, there is no undue risk to public health and safety due to using Optimized ZIRLO'.
Consistent with Common Defense and Security This exemption results in allowing the use of Optimized ZIRLO' fuel rod cladding material at the VCSNS. This change to the plant core configuration has no relation to security issues. Therefore, the common defense and security is not impacted by this exemption.
Special Circumstances Special circumstances, in accordance with 10 CFR 50.12(a)(2)(ii), are present whenever application of the regulation in the particular circumstances is not necessary to achieve the underlying purpose of the rule. The underlying purpose of 10 CFR 50.46 and Appendix K to 10 CFR Part 50 is to establish acceptance criteria for ECCS performance. Therefore, since the underlying purposes of 10 CFR 50.46 and Appendix K are achieved through the use of Optimized ZIRLO' fuel rod cladding material, the special circumstances required by 10 CFR 50.12(a)(2)(ii) for granting of an exemption from 10 CFR 50.46 and Appendix K exist.
4.0 CONCLUSION
The NRC staff has reviewed the licensee's request to use Optimized ZIRLO' for fuel rod cladding material. Based on the NRC staff's evaluation as set forth above, the NRC staff concludes that, pursuant to 10 CFR 50.12(a), the exemption is authorized by law, will not present an undue risk to the public health and safety, and is consistent with the common defense and security. Also, special circumstances are present. Therefore, the Commission hereby grants SCE&G an exemption from the requirements of 10 CFR 50.46 and Appendix K to 10 CFR Part 50, to allow the use of Optimized ZIRLO' up to a burnup of 62 GWd/MTU for the VCSNS.
-6 Pursuant to 10 CFR 51.32, the Commission has determined that the granting of this exemption will not have a significant impact on the quality of the human environment as published in the Federal Register on March 3, 2010 (75 FR 9619). This exemption is effective upon issuance.
Dated at Rockville, Maryland, this Bth day of March 2010.
FOR THE NUCLEAR REGULATORY COMMISSION i
11~~'~
Jcfeph G. Giitter, Director
- 'DjJJision of Operating Reactor Licensing Office of Nuclear Reactor Regulation
Mr. Thomas D. Gatlin Vice President, Nuclear Operations South Carolina Electric & Gas Company Post Office Box 88 Jenkinsville, SC 29065
SUBJECT:
VIRGIL C. SUMMER NUCLEAR STATION, UNIT 1 - EXEMPTION FROM REQUIREMENTS OF 10 CFR SECTION 50.46 AND APPENDIX K TO 10 CFR PART 50, TO ALLOW USE OF OPTIMIZED ZIRLOTM AS FUEL ROD CLADDING MATERIAL (TAC NO. ME1489)
Dear Mr. Gatlin:
The Nuclear Regulatory Commission has approved the enclosed exemption from specific requirements of Title 10 of the Code of Federal RegUlations (10 CFR), Section 50.46, "Acceptance criteria for emergency core cooling systems [ECCS] for light-water nuclear power reactors," and Appendix K to 10 CFR Part 50, "ECCS Evaluation Models," for the Virgil C.
Summer Nuclear Station, Unit 1. This action is in response to your application for an exemption dated June 9,2009, to allow the use of Optimized ZIRLO' for fuel rod cladding.
A copy of the exemption is enclosed. The exemption has been forwarded to the Office of the Federal Register for publication.
Sincerely, IRA by K. Cotton fori Robert E. Martin, Senior Project Manager Plant Licensing Branch 2-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-395
Enclosure:
Exemption cc w/encl: Distribution via Listserv DISTRIBUTION:
PUBLIC LPL2-1 R/f RidsNrrLASRohrer Resource RidsNrrPMSummer Resource RidsAersAcnw_MailCTR Resource RidsOgcRp Resource RidsNrrDoriDpr Resource RidsRgn2MailCenter Resource RidsNrrDorlLpl2-1 Resource MCox. EDO Region II RidsNrrDssSnpb Resource o
ADAMS Accession No.: Letter: ML1 015 0861 Exempton: ML100150894 OFFICE NRR/LPL2-1/PM NRR/LPL2/LA NRR/LPL2/BC NRR/DSS/SNPB OGC/NLO NRRJDORUD NAME RMartin SRohrer GKulesa AMendiola LSubin JGiitter (KColton for)
DATE 03/9/10 01120/10 03/04/10 10/28109
- 02/23/10 03/08/10 OFFICIAL RECORD COpy