Letter Sequence Acceptance Review |
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Results
Other: CNL-15-039, Severe Accident Management Alternatives for Reactor Coolant Pump Seals, ML090360589, ML093630039, ML100120107, ML100210350, ML100630115, ML100630139, ML100630140, ML100630146, ML100630155, ML100630167, ML100630169, ML100630170, ML100630171, ML100630173, ML100630174, ML100630175, ML100630176, ML100630177, ML100630178, ML100630192, ML100630193, ML100630194, ML100630234, ML100630235, ML100630263, ML100630264, ML101130395, ML101130397, ML101130398, ML101130399, ML101130401, ML101130403, ML101130404, ML101130405, ML101130407, ML101130408, ML101130409, ML101170096, ML101390048, ML103080030, ML110871475, ML110890472, ML11264A052, ML11294A461, ML11329A001, ML12166A068, ML12296A227, ML13150A376, ML13150A379
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MONTHYEARML1011304092004-05-15015 May 2004 Drawing, Distribution of Tritium Concentration in Groundwater at Power Block, March 2004, Attachment K Project stage: Other ML1011304082004-05-15015 May 2004 Drawing, Distribution of Tritium Concentrations in Groundwater, March 2004, Attachment J Project stage: Other ML1011304072004-05-15015 May 2004 Drawing, Water Table at Power Block, March 2004, Attachment I Project stage: Other ML1011304052004-05-15015 May 2004 Drawing, Water Table, Attachment H Project stage: Other ML1011304042004-05-15015 May 2004 Drawing, Hydrogeologic Cross-Section D-D, Attachment G Project stage: Other ML1011304032004-05-15015 May 2004 Drawing, Hydrogeologic Cross-Section C-C, Attachment F Project stage: Other ML1011304012004-05-15015 May 2004 Drawing, Hydrogeologic Cross-Section B-B, Attachment E Project stage: Other ML1011303992004-05-15015 May 2004 Drawing, Hydrogeologic Cross-Section A-A, Attachment D Project stage: Other ML1011303982004-08-10010 August 2004 Map, Bedrock Contours, Attachment C Project stage: Other ML1011700962004-08-12012 August 2004 Groundwater Investigation Report Project stage: Other ML1011303972004-08-12012 August 2004 Block Site Map, Plate B Project stage: Other ML1011303952004-08-12012 August 2004 Site Map. Attachment a Project stage: Other ML0814300282008-05-14014 May 2008 Transmittal of Annual Radiological Environmental Operating Report of 2007 Project stage: Request ML0812102702008-06-0303 June 2008 Request for Supplemental Information to Support Acceptance Review of Final Supplemental Environmental Impact Statement Project stage: Acceptance Review ML0818504602008-07-0202 July 2008 Final Supplemental Environmental Impact Statement - Request for Additional Information Project stage: Supplement ML1006301392008-12-12012 December 2008 WB-DC-20-20, Revision 0009, Traveling Water Screens and Trashracks, Project stage: Other ML0903605892009-01-21021 January 2009 Enclosure 1 - Watts Bar, Unit 2 Severe Accident Management Alternatives Analysis Project stage: Other ML0903605882009-01-27027 January 2009 Final Supplemental Environmental Impact Statement - Severe Accident Management Alternatives Project stage: Supplement ML1006302632009-11-0707 November 2009 Map - Final Map of the Watts Bar Nuclear Plant Project stage: Other ML1006302642009-11-0707 November 2009 Map of the Wetlands Streams Project stage: Other ML0922300242009-11-30030 November 2009 Watts, Unit 2, RAI, Regarding Severe Accident Management Alternatives Project stage: RAI ML0932900732009-12-0303 December 2009 Environmental RAI Enclosure Project stage: RAI ML0930301482009-12-0303 December 2009 RAI, Regarding Environmental Review Project stage: RAI ML1001201072009-12-14014 December 2009 December 14, 2009, TVA Letter Additional Information Regarding Environmental Review - Cultural Resources Project stage: Other ML0936300392009-12-22022 December 2009 Severe Accident Management Alternatives Additional Information Project stage: Other ML1002103502009-12-23023 December 2009 Submittal of Additional Information Regarding Environmental Review Project stage: Other ML1006301672010-01-15015 January 2010 Intact Containment Loss of Coolant Accident (LOCA) Analysis Project stage: Other ML1006302332010-01-26026 January 2010 Response to Tennessee Valley Authority Request for Plant Water Flow Information Project stage: Request ML1006302342010-02-25025 February 2010 Annual Estimates 2008 - Average Net Megawatts = 1180 Mwe, Non-Outage O&M Project stage: Other ML1006301702010-02-25025 February 2010 Drawing, Plot: 5047CL Sequoyah-Watts Bar HP Project stage: Other ML1006301692010-02-25025 February 2010 Drawing, Plot: 6059KX Bull Run Project stage: Other ML1006301462010-02-25025 February 2010 Plant Withdrawals Impacts, Water Supplied by Sccw Intake/Average Velocity for Expect No. of Bays in Service Project stage: Other ML1006301152010-02-25025 February 2010 Additional Information Regarding Environmental Review Project stage: Other ML1006301732010-02-25025 February 2010 Drawing, Plot: 5127CL Watts Bar HP-Watts Bar 1 Project stage: Other ML1006301402010-02-25025 February 2010 Plant Withdrawal Impacts, Water Supplied by Intake Pumping Station (Ips)/Average Velocity for All Openings Project stage: Other ML1006302352010-02-25025 February 2010 Yard Holding Pond Wsel Graph Overflow for 2001 Project stage: Other ML1006301712010-02-25025 February 2010 Drawing, Plot: 5173KX Watts Bar HP-Great Falls Project stage: Other ML1006301942010-02-25025 February 2010 Drawing, Plot: 5167GF Winchester-Watts Bar FP Project stage: Other ML1006301932010-02-25025 February 2010 Drawing, Plot: 6092KX Watts Bar-Volunteer Project stage: Other ML1006301922010-02-25025 February 2010 Drawing, Plot: 6084KX Watts Bar NP-Roane Project stage: Other ML1006301782010-02-25025 February 2010 Drawing, Plot: 5645 Cl Watts Bar-Athens Project stage: Other ML1006301552010-02-25025 February 2010 Operating Conditions for Intake Pumping Station, Table 1 Project stage: Other ML1006301772010-02-25025 February 2010 Plot: 608 1CL Watts Bar NP-Sequoyah Np 2 Project stage: Other ML1006301762010-02-25025 February 2010 Plot: 6080CL Watts Bar HP-Sequoyah 1 Project stage: Other ML1006301752010-02-25025 February 2010 Drawing, Plot: 5733KX Watts Bar HP-Spring City Project stage: Other ML1006301742010-02-25025 February 2010 Drawing, Plot: 5791KX Watts Bar HP-Rockwood Project stage: Other ML1011303932010-04-0909 April 2010 Response to U.S. Nuclear Regulatory Commission (NRC) Request for Additional Information Regarding Environmental Review Project stage: Request ML1013900482010-04-22022 April 2010 Additional Information Regarding Environmental Review- Cultural Resources (Tac No. MD8203) Project stage: Other ML1013405892010-05-12012 May 2010 Response to Request for Additional Information Regarding Environmental Review Project stage: Response to RAI ML1013701862010-05-14014 May 2010 OL - FW: Call Summary - TVA Clarification Call Project stage: Request 2009-11-07
[Table View] |
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Category:Letter
MONTHYEARIR 05000390/20240052024-08-28028 August 2024 Updated Inspection Plan and Assessment Follow-Up Letter for Watts Bar Nuclear Plant, Units 1 and 2 - Report 05000390-2024005 and 05000391-2024005 IR 05000390/20244022024-08-20020 August 2024 – Security Baseline Inspection Report 05000390-2024402 and 05000391/2024402 - Public CNL-24-061, Supplement to Application to Revise Function 5 of Technical Specification Table 3.3.2-1, ‘Engineered Safety Feature Actuation System Instrumentation,’ for the Sequoyah and Watts Bar (SQN-TS-23-02 and WBN-TS-23-08),”2024-08-19019 August 2024 Supplement to Application to Revise Function 5 of Technical Specification Table 3.3.2-1, ‘Engineered Safety Feature Actuation System Instrumentation,’ for the Sequoyah and Watts Bar (SQN-TS-23-02 and WBN-TS-23-08),” ML24219A0262024-08-12012 August 2024 Request for Withholding Information from Public Disclosure IR 05000390/20240022024-08-0707 August 2024 Integrated Inspection Report 05000390/2024002 and 05000391/2024002 Rev ML24204A2652024-07-25025 July 2024 Regulatory Audit Summary Related to Request to Revise Technical Specification Surveillance Requirement 3.9.5.1 to Reduce the Residual Heat Removal Flow Rate ML24199A0012024-07-22022 July 2024 Clarification and Correction to Exemption from Requirement of 10 CFR 37.11(c)(2) ML24170A8002024-07-15015 July 2024 Issuance of Amendment Nos. 168 and 74 Regarding Revision to Technical Specification Table 1.1-1 for Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Bolts ML24172A1342024-07-15015 July 2024 Exemptions from 10 CFR 37.11(C)(2) (EPID L-2023-LLE-0024) - Letter IR 05000390/20244402024-07-12012 July 2024 95001 Supplemental Inspection Supplemental Report 05000390-2024440 and 05000391-2024440 and Follow-Up Assessment Letter ML24131A0012024-07-0202 July 2024 Issuance of Amendment Nos. 167 and 73 Regarding Adoption of Technical Specification Task Force Traveler TSTF-427-A, Revision 2 CNL-24-052, Response to Request for Additional Information Regarding Application to Modify the Technical Specification Surveillance Requirement 3.9.5.1 (WBN-TS-21-14)2024-06-27027 June 2024 Response to Request for Additional Information Regarding Application to Modify the Technical Specification Surveillance Requirement 3.9.5.1 (WBN-TS-21-14) CNL-24-018, License Amendment Request for Adoption of Technical Specification Task Force Traveler TSTF-276-A, Revision 2, Regarding TS 3.8.1 AC Sources – Operating to Clarify Requirements for Diesel Generator Testing (WBN-TS2024-06-25025 June 2024 License Amendment Request for Adoption of Technical Specification Task Force Traveler TSTF-276-A, Revision 2, Regarding TS 3.8.1 AC Sources – Operating to Clarify Requirements for Diesel Generator Testing (WBN-TS ML24089A1152024-06-21021 June 2024 Transmittal Letter, Environmental Assessments and Findings of No Significant Impact Related to Exemption Requests from 10 CFR 37.11(c)(2) ML24141A0482024-05-17017 May 2024 EN 56958_1 Ametek Solidstate Controls, Inc ML24100A7642024-05-16016 May 2024 Issuance of Amendment No. 166 Regarding Revision to Technical Specification 3.8.2, AC Sources-Shutdown, to Remove Reference to C-S Diesel Generator (CNL-23-062) IR 05000390/20240012024-05-14014 May 2024 Integrated Inspection Report 05000390/2024001 and 05000391/2024001 CNL-24-040, Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2024-05-0808 May 2024 Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revisions IR 05000391/20240072024-04-30030 April 2024 Assessment Follow-up Letter for Watts Bar Nuclear Plant, Unit 2 – Report 05000391/2024007 ML24120A1182024-04-29029 April 2024 – Notification of NRC Supplemental Inspection (95001) and Request for Information CNL-24-037, Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Unit 1 and 2, Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A, Revision 422024-04-22022 April 2024 Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Unit 1 and 2, Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A, Revision 42 ML24087A1912024-04-18018 April 2024 Exemption from Select Requirements of 10 CFR Part 73, Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting CNL-24-010, License Amendment Request to Recapture Low-Power Testing Time (WBN-TS-23-19)2024-04-17017 April 2024 License Amendment Request to Recapture Low-Power Testing Time (WBN-TS-23-19) CNL-24-033, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2024-04-17017 April 2024 Central Emergency Control Center Emergency Plan Implementing Procedure Revisions CNL-24-024, Hydrologic Engineering Center River Analysis System Project Milestone Status Update2024-04-17017 April 2024 Hydrologic Engineering Center River Analysis System Project Milestone Status Update ML24072A0052024-04-15015 April 2024 Issuance of Amendment Nos. 165 and 72 Regarding Increase in the Maximum Number of Tritium Producing Burnable Absorber Rods and Supporting Changes, and Revision to the Updated Final Safety Analysis Report CNL-24-004, Application to Modify the Watts Bar Nuclear Plant, Unit 1 and Unit 2 Technical Specifications for Main Control Room Chiller Completion Time Extension (WBN-TS-23-13)2024-04-0404 April 2024 Application to Modify the Watts Bar Nuclear Plant, Unit 1 and Unit 2 Technical Specifications for Main Control Room Chiller Completion Time Extension (WBN-TS-23-13) IR 05000390/20244012024-04-0202 April 2024 – Security Baseline Inspection Report 05000390/2024401 and 05000391/2024401 - (Public) CNL-24-020, Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Units 1 and 2, Request for Approval of Quality Assurance Program Description and Application to Revise the Technical Specifications Associated with QAPD Requirements2024-04-0101 April 2024 Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Units 1 and 2, Request for Approval of Quality Assurance Program Description and Application to Revise the Technical Specifications Associated with QAPD Requirements CNL-24-008, Guarantee of Payment of Deferred Premiums - 2023 Annual Report2024-03-27027 March 2024 Guarantee of Payment of Deferred Premiums - 2023 Annual Report CNL-24-007, Annual Insurance Status Report2024-03-27027 March 2024 Annual Insurance Status Report CNL-24-025, Notice of Intent to Pursue License Renewal for Watts Bar Nuclear Plant, Unit 1 - Submittal Schedule2024-03-25025 March 2024 Notice of Intent to Pursue License Renewal for Watts Bar Nuclear Plant, Unit 1 - Submittal Schedule ML24081A0262024-03-21021 March 2024 Emergency Plan Implementing Procedure Revisions ML24079A0312024-03-19019 March 2024 Wb 2024-301, Corporate Notification Letter (210-day Ltr) CNL-24-031, Supplement to Request for Exemption from Various Part 72 Regulations Resulting from Fuel Basket Design Control Compliance2024-03-18018 March 2024 Supplement to Request for Exemption from Various Part 72 Regulations Resulting from Fuel Basket Design Control Compliance CNL-24-028, Response to Request for Additional Information Regarding Watts Bar Nuclear Plant, Units 1 and 2, Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2024-03-14014 March 2024 Response to Request for Additional Information Regarding Watts Bar Nuclear Plant, Units 1 and 2, Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation CNL-24-029, Response to Request for Additional Information Regarding Tennessee Valley Authority - Request for Exemption from Specific Requirements of 10 CFR Part 372024-03-14014 March 2024 Response to Request for Additional Information Regarding Tennessee Valley Authority - Request for Exemption from Specific Requirements of 10 CFR Part 37 IR 05000390/20240102024-03-0808 March 2024 Age-Related Degradation Inspection Report 05000390/2024010 and 05000391/2024010 CNL-24-012, Request for Exemption from Various Part 72 Regulations Resulting from Fuel Basket Design Control Compliance2024-02-28028 February 2024 Request for Exemption from Various Part 72 Regulations Resulting from Fuel Basket Design Control Compliance IR 05000390/20230062024-02-28028 February 2024 Annual Assessment Letter for Watts Bar Nuclear Plant Units 1 and 2 - Report 05000390/2023006 and 05000391/2023006 CNL-24-023, Central Emergency Control Center Emergency Plan Implementing Procedure Revision. Includes CECC EPIP-17, Revision 252024-02-20020 February 2024 Central Emergency Control Center Emergency Plan Implementing Procedure Revision. Includes CECC EPIP-17, Revision 25 IR 05000390/20230042024-02-13013 February 2024 Integrated Inspection Report 05000390/2023004 and 05000391/2023004 and Apparent Violation ML24038A3342024-02-0707 February 2024 Change to South Texas Project Electric Generating Station (Stepgs) Emergency Plan ML23319A2452024-01-29029 January 2024 Issuance of Amendment Nos. 366 and 360; 164 and 71 Regarding the Adoption of TSTF-567, Revision 1, Add Containment Sump TS to Address GSI-191 Issues ML24008A2462024-01-18018 January 2024 Revision to the Reactor Vessel Material Surveillance Capsule Withdrawal Schedule CNL-24-017, Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure and Emergency Preparedness Department Procedure Revisions2024-01-17017 January 2024 Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure and Emergency Preparedness Department Procedure Revisions CNL-24-016, Supplement to Application to Modify the Technical Specification Surveillance Requirement 3.9.5.1 (WBN-TS-21-14)2024-01-10010 January 2024 Supplement to Application to Modify the Technical Specification Surveillance Requirement 3.9.5.1 (WBN-TS-21-14) CNL-23-052, Application to Adopt TSTF-427-A, Revision 2, Allowance for Non-Technical Specification Barrier Degradation on Supported System Operability2024-01-0909 January 2024 Application to Adopt TSTF-427-A, Revision 2, Allowance for Non-Technical Specification Barrier Degradation on Supported System Operability CNL-23-062, Application to Revise the Technical Specifications Section 3.8.2, AC Sources-Shutdown, to Remove Reference to the C-S Diesel Generator (WBN-TS-23-018)2024-01-0808 January 2024 Application to Revise the Technical Specifications Section 3.8.2, AC Sources-Shutdown, to Remove Reference to the C-S Diesel Generator (WBN-TS-23-018) ML23346A1382024-01-0303 January 2024 Regulatory Audit Summary Related to Request to Increase the Number of Tritium Producing Burnable Absorber Rods 2024-08-07
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24155A1372024-05-29029 May 2024 Email from K. Green to S. Hughes Request for Additional Information Related to License Amendment Request to Revise Residual Heat Removal Flow Rate ML24120A1182024-04-29029 April 2024 – Notification of NRC Supplemental Inspection (95001) and Request for Information ML24116A2012024-04-17017 April 2024 Nrctva ISFSI CBS (RFI) ML24045A0312024-02-14014 February 2024 NRR E-mail Capture - Request for Additional Information Related to the Exemption Request for the 10 CFR Part 73 Enhanced Weapons Rule ML23166A1142023-06-15015 June 2023 Document Request for Watts Bar Nuclear Plant - Radiation Protection Inspection - Inspection Report 2023-03 ML23067A2372023-03-0808 March 2023 WB_2023-02_RP_inspection_doc_request ML23030A3512023-01-25025 January 2023 Notification of Watts Bar Nuclear Plant - Design Bases Assurance Inspection (Programs) and Initial Information Request ML22343A0692022-12-0808 December 2022 NRR E-mail Capture - Request for Additional Information - Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Revise Technical Specification 3.4.12 (L-2022-LLA-0103) ML22227A0272022-08-11011 August 2022 NRR E-mail Capture - Request for Additional Information Related to Alternative Requests RP-11 for Sequoyah Nuclear Plant, Units 1 and 2, and IST-RR-9 for Watts Bar Nuclear Plant, Units 1 and 2 ML22144A1002022-05-12012 May 2022 NRR E-mail Capture - Request for Additional Information Related to Tva'S Request to Revised the TVA Plants' Radiological Emergency Plans ML22115A1402022-04-25025 April 2022 NRR E-mail Capture - Requests for Confirmation of Information and Additional Information Regarding Watts Bar Nuclear Plant, Unit 2 Exemption Request Re 10 CFR Part 26 (L-2022-LLE-0017) ML22083A2372022-03-24024 March 2022 NRR E-mail Capture - Request for Additional Information and Confirmation of Information Related to Tva'S Request for Changes to Watts Bar Nuclear Plant, Units 1 and 2, Technical Specification 3.7.8 ML22056A3802022-02-25025 February 2022 Document Request for Watts Bar Nuclear Plant - Radiation Protection Inspection - Inspection Report 2022-02 ML21267A1392021-09-23023 September 2021 Document Request for Upcoming RP Inspection at Watts Bar ML21221A2602021-08-0909 August 2021 NRR E-mail Capture - Request for Additional Information Regarding Tva'S Request to Revise Watts Bar, Unit 1 Tech Specs Related to Continuous Opening of the Auxiliary Building Secondary Containment Enclosure Boundary ML21102A1312021-04-19019 April 2021 Request for Withholding Information from Public Disclosure for Watts Bar Nuclear Plant, Unit 1 ML21095A0422021-04-0202 April 2021 NRR E-mail Capture - Added Clarification to RAI 2 for Thot LAR ML21095A0402021-04-0202 April 2021 NRR E-mail Capture - Request for Additional Information Re Generic Letter 95-05 90-Day Report and LAR to Adjust Growth Rate for Thot (EPIDs L-2021-LRO-0003 and L-2021-LLA-0026) ML21095A0412021-04-0101 April 2021 NRR E-mail Capture - Revised Draft RAI - Combined RAI Set for Watts Bar Unit 2 90-Day Report and Thot LAR (EPIDs L-2021-LRO-0003 and L-2021-LLA-0026) ML21095A0442021-04-0101 April 2021 NRR E-mail Capture - Revised Draft RAI - Combined RAI Set for Watts Bar Unit 2 90-Day Report and Thot LAR (EPIDs L-2021-LRO-0003 and L-2021-LLA-0026) ML21091A0772021-04-0101 April 2021 NRR E-mail Capture - Request for Additional Information Regarding Tva'S Request to Revise Technical Specification 5.7.2.19, Containment Leakage Rate Testing Program ML21095A0462021-03-22022 March 2021 NRR E-mail Capture - Draft Request for Additional Information Regarding Tva'S Generic Letter 95-05 90-Day Report for Watts Bar Unit 2 ML21039A6402021-02-0808 February 2021 NRR E-mail Capture - Request for Additional Information Regarding Tva'S Request to Revise the Watts Bar Nuclear Plant, Unit 1 Technical Specifications Related to Steam Generator Tube Inspection Frequency ML21012A2032021-01-11011 January 2021 NRR E-mail Capture - Request for Additional Information Regarding Tva'S Request to Revise the Watts Bar UFSAR to Use Alternate Probability of Detection ML20350B5592020-12-15015 December 2020 NRR E-mail Capture - Request for Additional Information Regarding Tva'S Request to Adopt Traveler TSTF-490 Deletion of E Bar Definition and Revision to RCS Specific Activity Tech Spec ML20338A3202020-12-0303 December 2020 Notification of an NRC Fire Protection Team Inspection (NRC Inspection Report 05000390/2021011 and 05000391/2021011) and Request for Information ML20322A4412020-11-17017 November 2020 NRR E-mail Capture - Request for Additional Information Regarding Tva'S Request to Revise TS 3.7.11 Related to the MCR Chiller Replacement ML20322A4392020-11-0505 November 2020 NRR E-mail Capture - Draft Request for Additional Information Regarding Tva'S Request to Revise TS 3.7.11 Related to the MCR Chiller Replacement ML20308A3512020-11-0202 November 2020 Request for Additional Information on WBN Request for Exemption from 10 CFR Part 73, Appendix B, Section VI for the Conduct of an Annual Force-on-Force Exercise (EPID L-2020-LLE-0165 (COVID-19)) ML20253A1782020-09-0909 September 2020 Emergency Preparedness Program Inspection Request for Information ML20266G4592020-08-14014 August 2020 Notification of Inspection and Request for Information ML20196L8622020-07-14014 July 2020 NRR E-mail Capture - Watts Bar Nuclear Plant, Units 1 and 2 - Request for Additional Information Regarding Request to Implement the Full Spectrum LOCA Methodology ML20086G4802020-03-26026 March 2020 NRR E-mail Capture - Request for Additional Information for WBN2 Request Measurement Uncertainty Recapture Power Uprate (L-2019-LLS-0000) - Part 2 ML20085G3572020-03-25025 March 2020 NRR E-mail Capture - Request for Additional Information for WBN2 Request Measurement Uncertainty Recapture Power Uprate (L-2019-LLS-0000) ML20084M1942020-03-24024 March 2020 NRR E-mail Capture - Request for Additional Information for WBN2 Request Measurement Uncertainty Recapture Power Uprate (L-2019-LLS-0000) ML20083J3952020-03-12012 March 2020 NRR E-mail Capture - Draft Request for Additional Information for WBN2 Request Measurement Uncertainty Recapture Power Uprate (L-2019-LLS-0000) ML19340A6842019-12-0505 December 2019 NRR E-mail Capture - Request for Additional Information for WBN2 Request for One-Time Extension of Completion Time for TS 3.7.8 (L-2019-LLA-0020) ML19218A0302019-08-0505 August 2019 NRR E-mail Capture - Watts Bar Nuclear Plant - Second-Round Request for Additional Information Related to Application to Revise Technical Specifications Regarding DC Electrical Systems, TSTF-500, Revision 2 ML19218A0282019-07-25025 July 2019 NRR E-mail Capture - Watts Bar Nuclear Plant - Draft Second-Round Request for Additional Information Related to Application to Revise Technical Specifications Regarding DC Electrical Systems, TSTF-500, Revision 2 ML19186A4352019-07-0505 July 2019 NRR E-mail Capture - Watts Bar Nuclear Plant - Correction to Final Request for Additional Information Related to Application to Adopt 10 CFR 50.69 ML19169A3592019-06-18018 June 2019 NRR E-mail Capture - Watts Bar Nuclear Plant - Final Request for Additional Information Related to Application to Adopt 10 CFR 50.69 ML19148A7912019-05-28028 May 2019 NRR E-mail Capture - Sequoyah Nuclear Plant and Watts Bar Nuclear Plant - Final Request for Additional Information Related to Request for Alternative to OM Code Requirements ML19106A0462019-04-15015 April 2019 NRR E-mail Capture - Watts BAR, Units 1 and 2 Request for Additional Informatin (RAI) Regarding Changes to Technical Specifications Sections 3.8.1, 3.8.7, 3.8.8, and 3.8.9 ML19071A3542019-03-0808 March 2019 NRR E-mail Capture - Watts Bar Nuclear Plant - Final Request for Additional Information Related to Request to Adopt TSTF-425 to Relocate Specific Surveillance Frequency Requirements to Licensee-Controlled Program ML18313A2202018-11-0707 November 2018 Notification of Inspection and Request for Information for NRC Problem Identification and Resolution Inspection ML18282A6372018-10-0909 October 2018 NRR E-mail Capture - RAIs (Final) - LAR to Revise the Steam Generator Technical Specifications for Watts Bar Nuclear Plant, Unit 2 ML18270A2362018-09-26026 September 2018 NRR E-mail Capture - Watts Bar Units 1 and 2 RAIs - Modify TS 3.8.9 Completion Time for Inoperable 120V AC Vital Buses (L-2018-LLA-0050) ML18240A0702018-08-27027 August 2018 NRR E-mail Capture - RAI for Watts Bar Unit 2 Tpbars LAR and Watts Bar Units 1 and 2 LAR Related to Fuel Storage ML18199A1822018-07-17017 July 2018 NRR E-mail Capture - Request for Additional Information Regarding Watts Bar Unit 1 Extension of Surveillance Requirement Intervals ML18123A3942018-05-0303 May 2018 NRR E-mail Capture - Request for Additional Information Unit 2 Cycle 1 Steam Generator Tube Inspection Report 2024-05-29
[Table view] |
Text
June 3, 2008
Mr. Ashok Bhatnagar Senior Vice President Nuclear Generation Development and Construction Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801
SUBJECT:
WATTS BAR NUCLEAR PLANT, UNIT 2 - REQUEST FOR SUPPLEMENTAL INFORMATION FOR REVIEW OF SUPPLEMENTAL ENVIRONMENTAL STATEMENT (TAC MD8203)
Dear Mr. Bhatnagar:
The Nuclear Regulatory Commission (NRC) staff has determined that the Tennessee Valley Authority (TVA) must provide supplemental information in order for the staff to supplement its environmental statement supporting the Watts Bar Nuclear Plant, Unit 2, operating license review. The staff has examined TVA's February 15, 2008 submittal, "Watts Bar Nuclear Plant (WBN) - Unit 2 - Final Supplemental Environmental Impact Statement [FSEIS] for the Completion and Operation of Unit 2," and has concluded that the submittal does not provide all information required for environmental reports by Title 10 of the Code of Federal Regulations (10 CFR) sections 51.45 and 51.53.
Background
Applicants for a license to operate a production or utilization facility, such as a nuclear power plant, are required by 10 CFR 51.53(b) to submit information supplementing environmental information submitted in support of the NRC's review of a construction permit. Among other things, this regulation requires applicants to discuss the same matters described in 10 CFR 51.45, 10 CFR 51.51, and 10 CFR 51.52, but only to the extent that they differ from those discussed or reflect new information in addition to that discussed in the final environmental impact statement prepared by the NRC in connection with the construction permit. Applicants are required by 10 CFR 51.45 to submit an environmental report that includes a discussion of the impact of the proposed action on the environment. Applicants are also required to analyze alternatives available for reducing or avoiding adverse environmental effects. The NRC's initial environmental review for WBN Units 1 and 2 is documented in NUREG-0498, "Environmental Statement Related to Operation of Watts Bar Nuclear Plant Units 1 and 2,"
December 1978. In April 1995, the staff completed NUREG-0498, Supplement 1, to support issuance of the WBN Unit 1 operating license.
The staff recently began work to supplement NUREG-0498 in support of the WBN Unit 2 operating license review. This effort includes review of environmental information submitted by
TVA in accordance with 10 CFR 51.45. The staff has determined that TVA's February 15, 2008, submittal did not completely address requirements in 10 CFR 51.53 and 10 CFR 51.45 regarding information needed for the NRC's review of the environmental impact of WBN Unit 2 operation.
The NRC staff has identified that TVA's submittal does not adequately address a major potential difference between current operations from those proposed regarding the cooling mode to be used once WBN Unit 2 begins operations. Specifically, TVA's submittal did not clearly describe the plant cooling mode, including the flow rate of water used for once-through cooling of the facility. As stated on page 26 of TVA's submittal, neither unit will operate in a fully-closed mode. Previous analyses described in NUREG-0498 and its supplement assume completely closed cycle cooling would be used. The difference between closed and open-cycle cooling could result in an adverse environmental impact that has not been presented or evaluated in the application. Therefore, the submittal does not fulfill requirements of 10 CFR 51.53(b) to describe differences or reflect new information, does not fulfill requirements of 10 CFR 51.45(b) to describe the impact of the proposed action, and does not address alternatives available for reducing or avoiding adverse environmental effects as required by 10 CFR 51.45(c).
The NRC staff has also determined that TVA's February 15, 2008, submittal does not provide an adequate analysis of severe accident mitigation design alternatives (SAMDA). TVA's submittal describes an evaluation based upon the WBN Unit 1 probabilistic safety assessment model, stating that it is considered applicable because of the similarity between WBN Units 1 and 2. However, no information is provided to justify this statement. The NRC staff has concluded that sharing of systems previously dedicated to Unit 1 operation would likely result in a Unit 2 risk profile different from that previously evaluated for Unit 1. Therefore, TVA's February 15, 2008, submittal does not fulfill requirements of 10 CFR 51.53(b) to describe such differences.
TVA's submittal also indicated that background information and analyses associated with the severe accident analysis are available at the site for review. However, making the information available in this manner does not fulfill the requirements of 10 CFR 51.45(c) for submittal of information regarding alternatives for reducing or avoiding adverse environmental effects. Information at the site is also not available to the public, which does not enable the NRC to seek public input and comments on this information as part of its environmental review.
Requests for Supplemental Information To address the issues described above, TVA is requested to provide the following supplemental information:
- 1. Provide a description of the plant cooling water modes that will be used once WBN Unit 2 begins operation, including a discussion of the differences from modes described in previous environmental reviews completed by the NRC, as required by 10 CFR 51.53(b). TVA's response should describe any changes and analyses as required by 10 CFR 51.45(b) and (c), and should include information of the impact on fish and shellfish resources as should be shown in a copy of the Clean Water Act 316(b) determination.
- 2. Provide an analysis of alternatives available for preventing or mitigating adverse environmental effects of severe accidents for WBN Unit 2. The analysis should be consistent in
scope and content with severe accident mitigation alternative analyses provided in support of recent license renewal applications, and should consider risks from both internal and external events. The analysis should demonstrate that differences between WBN Units 1 and 2, and the effects of multi-unit operations are adequately addressed, and should be supported by completion of a probabilistic safety assessment reflecting the impact of simultaneous operation of both WBN units. TVA's response should clearly demonstrate the applicability of any information submitted to WBN Unit 2.
These requests were discussed with TVA representatives in telephone conferences on April 17 and 24, 2008.
These requests reflect only the NRC staff's initial review of TVA's February 15, 2008, submittal. Once complete information is provided, it is anticipated that requests for additional information will be needed as the staff's review proceeds.
Please provide the requested information within 30 days of the date of this letter, or provide a schedule for submittal of the information. The NRC staff will inform the public of our review schedule via a Federal Register Notice once complete information is received.
The NRC staff notes that prior to receipt of the February 15, 2008, submittal, the NRC staff had discussed the need for complete information to address SAMDA with TVA representatives.
NRC staff had examined TVA's FSEIS, which was available through public sources, including TVA's Internet web site. Based on the staff's examination of the FSEIS, we indicated to TVA that it appeared that SAMDA was not addressed in sufficient detail to conduct our review. TVA's February 15, 2008, submittal apparently addressed this issue by stating that background information and analyses are available at the site for review. As indicated above, TVA's approach did not satisfy regulatory requirements or provide adequate information for meaningful public participation in the NRC's environmental review.
I can be reached at 301-415-1470 or at joseph.williams@nrc.gov if you have questions regarding this topic.
Sincerely,
/RA/ Joseph F. Williams, Senior Project Manager Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-391
cc: See next page
scope and content with severe accident mitigation alternative analyses provided in support of recent license renewal applications, and should consider risks from both internal and external events. The analysis should demonstrate that differences between WBN Units 1 and 2, and the effects of multi-unit operations are adequately addressed, and should be supported by completion of a probabilistic safety assessment reflecting the impact of simultaneous operation of both WBN units. TVA's response should clearly demonstrate the applicability of any information submitted to WBN Unit 2.
These requests were discussed with TVA representatives in telephone conferences on April 17 and 24, 2008.
These requests reflect only the NRC staff's initial review of TVA's February 15, 2008, submittal. Once complete information is provided, it is anticipated that requests for additional information will be needed as the staff's review proceeds.
Please provide the requested information within 30 days of the date of this letter, or provide a schedule for submittal of the information. The NRC staff will inform the public of our review schedule via a Federal Register Notice once complete information is received.
The NRC staff notes that prior to receipt of the February 15, 2008, submittal, the NRC staff had discussed the need for complete information to address SAMDA with TVA representatives. NRC staff had examined TVA's FSEIS, which was available through public sources, including TVA's Internet web site. Based on the staff's examination of the FSEIS, we indicated to TVA that it appeared that SAMDA was not addressed in sufficient detail to conduct our review. TVA's February 15, 2008, submittal apparently addressed this issue by stating that background information and analyses are available at the site for review. As indicated above, TVA's approach did not satisfy regulatory requirements or provide adequate information for meaningful public participation in the NRC's environmental review.
I can be reached at 301-415-1470 or at joseph.williams@nrc.gov if you have questions regarding this topic.
Sincerely, /RA/ Joseph F. Williams, Senior Project Manager Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
Docket No. 50-391 cc: See next page DISTRIBUTION:
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DATE 06 / 03 /08 06 / 03 /08 5/22/08 5/22/08 06 / 03 /08 OFFICIAL RECORD COPY Ashok S. Bhatnagar Tennessee Valley Authority WATTS BAR NUCLEAR PLANT UNIT 2
cc:Mr. Gordon P. Arent New Generation Licensing Manager Tennessee Valley Authority 5A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Senior Resident Inspector, Unit 2 Watts Bar Nuclear Plant U.S. Nuclear Regulatory Commission 1260 Nuclear Plant Road Spring City, TN 37381
Mr. Michael K. Brandon, Manager Licensing and Industry Affairs Watts Bar Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Spring City, TN 37381 Mr. William R. Campbell, Jr. Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 3R Lookout Place 1101 Market Street Chattanooga, TN 37402-2801
County Executive 375 Church Street Suite 215 Dayton, TN 37321
County Mayor P. O. Box 156 Decatur, TN 37322 Mr. John C. Fornicola, General Manager Nuclear Assurance Tennessee Valley Authority 3R Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 General Counsel Tennessee Valley Authority 6A West Tower 400 West Summit Hill Drive Knoxville, TN 37902
Mr. Michael J. Lorek, Plant Manager Watts Bar Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Spring City, TN 37381
Mr. Lawrence E. Nanney, Director Tennessee Dept. of Environmental Health & Conservation Division of Radiological Health 3rd Floor, L&C Annex 401 Church Street Nashville, TN 37243-1532 Mr. Larry E. Nicholson, General Manager Performance Improvement Tennessee Valley Authority 3R Lookout Place 1101 Market Street Chattanooga, TN 37402-2801
Mr. Masoud Bajestani, Vice President Watts Bar Unit 2 Watts Bar Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Spring City, TN 37381 Mr. Michael D. Skaggs Site Vice President Watts Bar Nuclear Plant Tennessee Valley Authority P. O. Box 2000 Spring City, TN 37381 Ms. Ann P. Harris 341 Swing Loop Road Rockwood, TN 37854