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Category:Letter
MONTHYEARML23319A2452024-01-29029 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
CNL-23-069, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-21021 December 2023
Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation
IR 05000390/20234412023-12-21021 December 2023
Plantfinal Significance Determination for a Security-Related Greater than Green Finding, Nov, and Assessment Follow-up, 05000390-2023441 and 05000391-2023441-Public
CNL-23-036, Application to Revise Function 5 of Technical Specification Table 3.3.2-1, Engineered Safety Feature Actuation System Instrumentation, for the Sequoyah Nuclear Plant and Watts Bar Nuclear Plant (SQN-TS-23-02 and WBN-TS-23-08)2023-12-18018 December 2023
Application to Revise Function 5 of Technical Specification Table 3.3.2-1, Engineered Safety Feature Actuation System Instrumentation, for the Sequoyah Nuclear Plant and Watts Bar Nuclear Plant (SQN-TS-23-02 and WBN-TS-23-08)
IR 05000390/20234042023-12-14014 December 2023
Security Baseline Inspection Report 05000390/2023404 and 05000391/2023404
CNL-23-001, Rebaseline of Sections 3.1 and 3.2 of the Technical Specifications (WBN-TS-23-01)2023-12-13013 December 2023
Rebaseline of Sections 3.1 and 3.2 of the Technical Specifications (WBN-TS-23-01)
ML23293A0572023-12-0606 December 2023
Issuance of Amendment Nos. 163 and 70 Regarding Adoption of TSTF-501-A, Revision 1, Relocate Stored Fuel Oil and Lube Oil Volume Values to Licensee Control
IR 05000390/20230102023-11-30030 November 2023
RE-Issue Watts Bar Nuclear Plant - Biennial Problem Identification and Resolution Inspection Report 050000390/2023010 and 05000391/2023010 and Apparent Violation
CNL-23-067, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2023-11-27027 November 2023
Central Emergency Control Center Emergency Plan Implementing Procedure Revisions
IR 05000390/20230032023-11-13013 November 2023
Integrated Inspection Report 05000390/2023003 and 05000391/2023003 and Apparent Violation
ML23312A1432023-11-0808 November 2023
Submittal of Dual Unit Updated Final Safety Analysis Report (UFSAR) Amendment 5
CNL-23-059, Supplement to Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-2023-09-20020 September 2023
Supplement to Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-03
CNL-23-061, Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revision2023-09-20020 September 2023
Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revision
ML23251A2002023-09-11011 September 2023
Request for Withholding Information from Public Disclosure for Watts Bar Nuclear Plant, Units 1 and 2
CNL-23-057, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions. Includes CECC-EPIP-1, Revision 76 and CECC-EPIP-9, Revision 642023-09-0505 September 2023
Central Emergency Control Center Emergency Plan Implementing Procedure Revisions. Includes CECC-EPIP-1, Revision 76 and CECC-EPIP-9, Revision 64
IR 05000390/20230052023-08-30030 August 2023
Updated Inspection Plan for Watts Bar Nuclear Plant, Units 1 and 2 - Report 05000390/2023005 and 05000391/2023005
ML23233A0042023-08-28028 August 2023
Proposed Alternative to the Requirements of the ASME Boiler and Pressure Vessel Code for Upper Head Injection Dissimilar Metal Butt Welds
IR 05000390/20230022023-08-16016 August 2023
Reissue - Watts Bar Nuclear Plant - Integrated Inspection Report 05000390/2023002 and 05000391/2023002
ML23220A1582023-08-0909 August 2023
Integrated Inspection Report 05000390/2023002 and 05000391/2023002
CNL-23-045, License Amendment Request to Revise Technical Specification Table 1.1-1 Regarding the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Bolts (WBN-TS-23-010)2023-08-0707 August 2023
License Amendment Request to Revise Technical Specification Table 1.1-1 Regarding the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Bolts (WBN-TS-23-010)
CNL-23-028, Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-03 and WBN-TS-23-06)2023-08-0202 August 2023
Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-03 and WBN-TS-23-06)
ML23192A4472023-07-31031 July 2023
Staff Assessment of Updated Seismic Hazards at TVA Sites Following the NRC Process for the Ongoing Assessment of Natural Hazards Information
CNL-23-055, Tennessee Valley Authority - Emergency Preparedness Department Procedure Revision. Includes EPDP-3, Revision 3, Emergency Plan Exercises and Preparedness Drills2023-07-25025 July 2023
Tennessee Valley Authority - Emergency Preparedness Department Procedure Revision. Includes EPDP-3, Revision 3, Emergency Plan Exercises and Preparedness Drills
IR 05000390/20230112023-07-24024 July 2023
Quadrennial Focused Engineering Inspection (FEI) Commercial Grade Dedication Report 05000390 2023011 and 05000391 2023011
CNL-23-053, Tennessee Valley Authority - Radiological Emergency Plan Revisions2023-07-18018 July 2023
Tennessee Valley Authority - Radiological Emergency Plan Revisions
CNL-23-020, Application to Revise Technical Specifications to Adopt TSTF-501-A, Revision 1, Relocate Stored Fuel Oil and Lube Oil Volume Values to Licensee Control (WBN-TS-22-06)2023-06-28028 June 2023
Application to Revise Technical Specifications to Adopt TSTF-501-A, Revision 1, Relocate Stored Fuel Oil and Lube Oil Volume Values to Licensee Control (WBN-TS-22-06)
CNL-23-049, Tennessee Valley Authority - Radiological Emergency Plan and Central Emergency Control Center Emergency Plan .2023-06-26026 June 2023
Tennessee Valley Authority - Radiological Emergency Plan and Central Emergency Control Center Emergency Plan .
ML23122A2322023-06-0707 June 2023
Issuance of Amendment Nos. 162 and 69 Regarding Change to Date in Footnotes for Technical Specification 3.7.11, Control Room Emergency Air Temperature Control System (Creatcs)
CNL-23-044, Transmittal of Revision 3 to WCAP-18774-P and WCAP-18774-NP, Addendum to the Rotterdam Dockyard Company Final Stress Report for 173 P.W.R. Vessels TVA III & IV (Report No. 30749-B-030, Rev. 3) - Evaluation of One Closure Stud Out2023-06-0101 June 2023
Transmittal of Revision 3 to WCAP-18774-P and WCAP-18774-NP, Addendum to the Rotterdam Dockyard Company Final Stress Report for 173 P.W.R. Vessels TVA III & IV (Report No. 30749-B-030, Rev. 3) - Evaluation of One Closure Stud Out
IR 05000390/20234032023-05-30030 May 2023
Cyber Security Inspection Report 05000390/2023403 and 05000391/2023403
ML23131A1812023-05-23023 May 2023
Correction to Amendment No. 161 to Facility Operating License No. NPF-90
CNL-23-042, Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2023-05-16016 May 2023
Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revisions
IR 05000390/20220032023-05-0909 May 2023
Reissue Watts Bar Nuclear Plant - Integrated Inspection Report 05000390/2022003 and 05000391/2022003
ML23125A2202023-05-0505 May 2023
Issuance of Amendment No. 161 Regarding a Change to Footnotes for Technical Specification Table 1.1-1 Modes (Emergency Circumstances)
IR 05000390/20230012023-05-0404 May 2023
Integrated Inspection Report 05000390/2023001 and 05000391/2023001
CNL-23-043, Emergency License Amendment Request to Relax the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Studs in Technical Specification Table 1.1-1, Modes (WBN-TS-23-09)2023-05-0404 May 2023
Emergency License Amendment Request to Relax the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Studs in Technical Specification Table 1.1-1, Modes (WBN-TS-23-09)
CNL-23-032, Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Unit 1 and 2, Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A, Revision 412023-04-27027 April 2023
Clinch River, Sequoyah, Units 1 and 2, Watts Bar, Unit 1 and 2, Nuclear Quality Assurance Plan, TVA-NQA-PLN89-A, Revision 41
CNL-23-030, Tennessee Valley Authority - Hydrologic Engineering Center River Analysis System Project Milestone Status Update2023-04-27027 April 2023
Tennessee Valley Authority - Hydrologic Engineering Center River Analysis System Project Milestone Status Update
CNL-23-033, Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revision2023-04-24024 April 2023
Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revision
CNL-23-029, Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2023-04-11011 April 2023
Radiological Emergency Plan and Central Emergency Control Center Emergency Plan Implementing Procedure Revisions
ML23072A0652023-04-0505 April 2023
Units 1 and 2 Issuance of Amendment Nos. 364 and 358; 160 and 68 Regarding a Revision to Technical Specification 3.4.12
ML23073A2762023-04-0303 April 2023
Individual Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Significant Hazards Consideration Determination, and Opportunity for a Hearing (EPID L-2023-LLA-0029) (Letter)
CNL-23-023, Annual Insurance Status Report2023-03-30030 March 2023
Annual Insurance Status Report
CNL-23-024, TVA Guarantee of Payment of Deferred Premiums - 2022 Annual Report2023-03-29029 March 2023
TVA Guarantee of Payment of Deferred Premiums - 2022 Annual Report
2024-01-09
[Table view] |
Text
Attachments 1 and 4 are to be withheld from public disclosure under 10 CFR 2.390.
When separated from these attachments, this letter is decontrolled.
Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 March 16, 2011 10 CFR 50.4 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 2 NRC Docket No. 50-391
Subject:
WATTS BAR NUCLEAR PLANT (WBN) UNIT 2 - INSTRUMENTATION AND CONTROLS STAFF INFORMATION REQUESTS
Reference:
- 1. Licensee Open Items to be Resolved for SER Approval List The purpose of this letter is to provide TVA's responses to NRC's information requests on the "Licensee Open Items to be Resolved for SER Approval List." Enclosure 1 to this letter provides TVA's responses to the information requested by NRC. contains the supporting documents for TVA's responses to NRC's requests/questions provided in Enclosure 1. Enclosure 3 provides the new regulatory commitment contained in this letter.
Attachments 1 and 4 contain information proprietary to Westinghouse Electric Corporation (WEC). TVA requests that the WEC proprietary information be withheld from public disclosure in accordance with 10 CFR § 2.390. Attachments 2 and 5 contain the corresponding non-proprietary versions of the documents. Attachments 3 and 6 contain the corresponding affidavits for withholding proprietary information from public disclosure.
U.S. Nuclear Regulatory Commission Page 2 March 16, 2010 I declare under penalty of perjury that the foregoing is true and correct. Executed on the 16th day of March, 2011.
If you have any questions, please contact William Crouch at (423) 365-2004.
Sincerely, David Stinson Watts Bar Unit 2 Vice President
Enclosures:
- 1. Responses to Licensee Open Items To Be Resolved For SER Approval
- 2. List of Attachments
- 3. New Regulatory Commitment cc (Enclosures):
U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257 NRC Resident Inspector Unit 2 Watts Bar Nuclear Plant 1260 Nuclear Plant Road Spring City, Tennessee 37381
Enclosure I TVA Letter Dated March 16, 2011 Responses to Licensee Open Items to be Resolved for SER Approval For some NRC RAI requests, this letter provides TVA's initial response. For the other NRC RAI requests in this letter, a response has been provided in previous TVA letters to the NRC and the NRC has subsequently requested additional information. For these requests, the initial TVA response is not repeated below. The additional NRC information requests are identified in this letter as "Follow-up NRC Requests." TVA responses to these items are identified as "TVA Response to Follow-up NRC Request."
The following acronyms/abbreviations are used in this letter:
FAT Factory Acceptance Test FSAR Final Safety Analysis Report IV&V Independent Verification and Validation LTR Licensing Technical Report MTTR Mean Time To Repair NRC Nuclear Regulatory Commission PAMS Post Accident Monitoring System TVA Tennessee Valley Authority WBN2 Watts Bar Nuclear Unit 2 IEEE Institute of Electrical and Electronics Engineers Inc.
- 1. NRC Request (Item Number 074)
By letter dated March 12, 2010 TVA stated that the target submittal date for the Post FAT IV&V Phase Summary Report was November 30, 2010.
TVA Response to NRC Request:
Attachment 1 contains WNA-VR-00283-WBT-P, "IV&V Summary Report for the Post Accident Monitoring System," Revision 4, dated March 2011 (proprietary). Attachment 2 contains WNA-VR-00283-WBT-NP, "IV&V Summary Report for the Post Accident Monitoring System," Revision 4, dated March 2011 (non-proprietary). Attachment 3 contains CWA-1 1-3121, Application for Withholding Proprietary Information from Public Disclosure, WNA-VR-00283-WBT-P, Revision 4 "Nuclear Automation IV&V Summary Report for the Post Accident Monitoring System" (Proprietary)," dated March 3, 2011.
- 2. NRC Request (Item Number 212)
By letter dated June 18, 2010 (ML101940236) TVA stated (Enclosure 1, Attachment 3, Item No. 3) that the PAMS system design specification and software requirements specification contain information to address the "DesignReport on Computer Integrity, Test and Calibration..." The staff has reviewed these documents, and it is not clearhow this is the case.
(1) Please describe how the information provided demonstrates compliance with IEEE 603-1991 Clauses 5.5, 5.7, 5.10, & 6.5.
(2) Please describe how the information provided demonstrates conformance with IEEE 7-4.3.2-2003 Clauses 5.5 & 57.
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Enclosure I TVA Letter Dated March 16, 2011 Responses to Licensee Open Items to be Resolved for SER Approval NRC Follow up Request:
(a) IEEE 603 Clause 5.5 basically states that conditions identified in IEEE 603 Clauses 4.7 & 4.8 must be addressedin the design. Energy supply conditionshave not been identified, or explicitly addressed.
(b) WNA-AR-00189-WBT Rev. 0 Table 5-2 shows a MTTR of 7.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. It is not clear how this satisfies the contractualitem No. 179.
TVA Response to Follow-up NRC Request:
(a) Energy Supply conditions are specified in WNA-DS-01617-WBT-P, System Requirements Specification Rev. 4, Requirement 4.1-1 which requires 120Vac +/-10%
and 60+/-3Hz. Power to the Common Q PAMS is provided from the 120Vac vital power system. Per WBN Unit 2 FSAR section 8.3.1.1 the vital 120 volt ac system specifications are 120Vac +/-2% and 60+/-0.5Hz. Based on this, the power provided meets the system requirements.
Electromagnetic compatibility, seismic and environmental qualification of the equipment to meet the design basis requirements is documented in EQ-QR-68-WBT-P, Revision 0 "Qualification Summary Report for Post-Accident Monitoring System (PAMS)" (Proprietary) (Attachment 4). Attachment 5 contains EQ-QR-68-WBT-NP, Revision 0 "Qualification Summary Report for Post-Accident Monitoring System (PAMS)" (non-proprietary). Attachment 6 contains CWA-1 1-3118, Application for Withholding Proprietary Information from Public Disclosure, EQ-QR-68-WBT-P, Revision 0 "Qualification Summary Report for Post-Accident Monitoring System (PAMS)," (Proprietary), dated February 28, 2011.
(b) The Contract Compliance Matrix Item 179 in Revision 3 of the Licensing Technical Report will be revised to show this item as a deviation and to reflect TVA's acceptance of the 7.2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> MTTR value. WNA-LI-00058-WBT-P, "Post-Accident Monitoring System (PAMS) Licensing Technical Report," Revision 3, (proprietary) dated March 2011, will be submitted no later than March 29, 2011.
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Enclosure 2 TVA Letter Dated March 16, 2011 Responses to Licensee Open Items to be Resolved for SER Approval List of Attachments
- 1. Westinghouse Electric Company WNA-VR-00283-WBT-P, Revision 4 "Nuclear Automation IV & V Summary Report for the Post Accident Monitoring System" (Proprietary), dated March 2011
- 2. Westinghouse Electric Company WNA-VR-00283-WBT-NP, Revision 4 "Nuclear Automation IV&V Summary Report for the Post Accident Monitoring System," dated March 2011 (non-proprietary)
- 3. Westinghouse Electric Company CWA-1 1-3121, Application for Withholding Proprietary Information from Public Disclosure, WNA-VR-00283-WBT-P, Revision 4 "Nuclear Automation IV&V Summary Report for the Post Accident Monitoring System" (Proprietary)," dated March 3, 2011
- 4. Westinghouse Electric Company EQ-QR-68-WBT-P, Revision 0 "Qualification Summary Report for Post-Accident Monitoring System (PAMS)" (Proprietary), dated February 2011
- 5. Westinghouse Electric Company EQ-QR-68-WBT-NP, Revision 0 "Qualification Summary Report for Post-Accident Monitoring System (PAMS)" (non-proprietary), dated February 2011
- 6. Westinghouse Electric Company CWA-1 1-3118, Application for Withholding Proprietary Information from Public Disclosure, EQ-QR-68-WBT-P, Revision 0 "Qualification Summary Report for Post-Accident Monitoring System (PAMS)," (Proprietary), dated February 28, 2011 1
Enclosure 3 TVA Letter Dated March 16, 2011 Responses to Licensee Open Items to be Resolved for SER Approval New Regulatory Commitment WNA-LI-00058-WBT-P, "Post-Accident Monitoring System (PAMS) Licensing Technical Report,"
Revision 3, (proprietary) dated March 2011, will be submitted no later than March 29, 2011.
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