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Category:Letter type:ULNRC
MONTHYEARULNRC-06853, Submittal of 2023 Fitness for Duty Performance Data Per Per 10 CFR 26.7172024-01-29029 January 2024 Submittal of 2023 Fitness for Duty Performance Data Per Per 10 CFR 26.717 ULNRC-06847, Supplement to Relief Request from Requirements of ASME BPV Code, Section XI, Subsection Iwl Regarding Examination and Testing of the Unbonded Post-Tensioning System (Relief Request C3R-01)2023-12-21021 December 2023 Supplement to Relief Request from Requirements of ASME BPV Code, Section XI, Subsection Iwl Regarding Examination and Testing of the Unbonded Post-Tensioning System (Relief Request C3R-01) ULNRC-06849, License Renewal Resolution for Commitments 34 and 35 Perform Evaluation of Crack Initiation and Propagation in Steam Generator Divider Plate and Tube-To-Tubesheet Welds2023-12-20020 December 2023 License Renewal Resolution for Commitments 34 and 35 Perform Evaluation of Crack Initiation and Propagation in Steam Generator Divider Plate and Tube-To-Tubesheet Welds ULNRC-06844, Request for Exemption from Specific Requirements in 2023 Security Rule, Enhanced Weapons, Firearms Background Checks, and Security Event Notification2023-12-0707 December 2023 Request for Exemption from Specific Requirements in 2023 Security Rule, Enhanced Weapons, Firearms Background Checks, and Security Event Notification ULNRC-06827, Supplement to License Amendment Request Regarding Support System Requirements for Residual Heat Removal and Control Room Air Conditioning Systems Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029)2023-11-20020 November 2023 Supplement to License Amendment Request Regarding Support System Requirements for Residual Heat Removal and Control Room Air Conditioning Systems Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029) ULNRC-06824, Response to Request for Additional Information Regarding Operating Quality Assurance Manual (Oqam) Revision 36A2023-08-17017 August 2023 Response to Request for Additional Information Regarding Operating Quality Assurance Manual (Oqam) Revision 36A ULNRC-06830, Transmittal of Updated Technical Specification Markup and Clean Pages for License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak2023-08-15015 August 2023 Transmittal of Updated Technical Specification Markup and Clean Pages for License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak ULNRC-06223, Minor Correction to License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies (LDCN 2020-0004)2023-07-25025 July 2023 Minor Correction to License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies (LDCN 2020-0004) ULNRC-06799, Submittal of Licensee Event Report 2022-003-01, Class 1E Electrical Air Conditioning System Thermal Expansion Valve Failure Resulted in Condition Prohibited by Technical Specifications2023-07-13013 July 2023 Submittal of Licensee Event Report 2022-003-01, Class 1E Electrical Air Conditioning System Thermal Expansion Valve Failure Resulted in Condition Prohibited by Technical Specifications ULNRC-06821, Post-Audit Follow-Up Information in Support of Callaway'S License Amendment Request and Proposed Exemption to Allow Use of Framatome Gaia Fuel (LDCN 22-0002) (EPID L-2022-LLA-0150 and EPID L-2022-LLE-00301)2023-06-21021 June 2023 Post-Audit Follow-Up Information in Support of Callaway'S License Amendment Request and Proposed Exemption to Allow Use of Framatome Gaia Fuel (LDCN 22-0002) (EPID L-2022-LLA-0150 and EPID L-2022-LLE-00301) ULNRC-06822, Additional Information Regarding Request for NRC Approval of Operating Quality Assurance Manual (Oqam) Revision 36a2023-06-14014 June 2023 Additional Information Regarding Request for NRC Approval of Operating Quality Assurance Manual (Oqam) Revision 36a ULNRC-06815, Request for NRC Approval of Operating Quality Assurance Manual, Revision 36a2023-06-0505 June 2023 Request for NRC Approval of Operating Quality Assurance Manual, Revision 36a ULNRC-06818, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate .2023-06-0505 June 2023 Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate . ULNRC-06816, Withdrawal of Previously Submitted Enclosures Regarding License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications (LDCN 21-0015)2023-05-0909 May 2023 Withdrawal of Previously Submitted Enclosures Regarding License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications (LDCN 21-0015) ULNRC-06812, Submittal of 2022 Annual Radiological Environmental Operating Report2023-04-27027 April 2023 Submittal of 2022 Annual Radiological Environmental Operating Report ULNRC-06806, Submittal of Radiological Emergency Response Plan, Revision 552023-04-12012 April 2023 Submittal of Radiological Emergency Response Plan, Revision 55 ULNRC-06807, Submittal of Single Positive Test Forms2023-04-0303 April 2023 Submittal of Single Positive Test Forms ULNRC-06798, Submittal of Status of Plant Decommissioning Funding and ISFSI Decommissioning Funding Plan2023-03-30030 March 2023 Submittal of Status of Plant Decommissioning Funding and ISFSI Decommissioning Funding Plan ULNRC-06801, CFR 50.46 Annual Report Regarding ECCS Evaluation Model Revisions2023-03-30030 March 2023 CFR 50.46 Annual Report Regarding ECCS Evaluation Model Revisions ULNRC-06804, Submittal of Nuclear Property Insurance Reporting2023-03-29029 March 2023 Submittal of Nuclear Property Insurance Reporting ULNRC-06751, Application to Revise Technical Specifications to Adopt TSTF-501-A, Rev. 1, Relocate Stored Oil & Lube Oil Volume Values to Licensee Control2023-03-29029 March 2023 Application to Revise Technical Specifications to Adopt TSTF-501-A, Rev. 1, Relocate Stored Oil & Lube Oil Volume Values to Licensee Control ULNRC-06803, Submittal of Response to Request for Additional Information Regarding Results of Steam Generator Tube In-Service Inspection2023-03-29029 March 2023 Submittal of Response to Request for Additional Information Regarding Results of Steam Generator Tube In-Service Inspection ULNRC-06805, Transmittal of Special Report 2023-02 Non-Functionality of Containment Hydrogen Analyzer Channel for Greater than 30 Days2023-03-21021 March 2023 Transmittal of Special Report 2023-02 Non-Functionality of Containment Hydrogen Analyzer Channel for Greater than 30 Days ULNRC-06802, Special Report 2023-01 (PAM Report); Non-Functionality of a Post-Accident Monitoring Instrument2023-03-0909 March 2023 Special Report 2023-01 (PAM Report); Non-Functionality of a Post-Accident Monitoring Instrument ULNRC-06795, Submittal of Fitness for Duty Reports for 2022, Including Single Positive Test Forms2023-01-24024 January 2023 Submittal of Fitness for Duty Reports for 2022, Including Single Positive Test Forms ULNRC-06794, Submittal of Fitness for Duty Program Data for 20222023-01-24024 January 2023 Submittal of Fitness for Duty Program Data for 2022 ULNRC-06787, Response to Request for Additional Information Regarding License Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015)2022-12-0808 December 2022 Response to Request for Additional Information Regarding License Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015) ULNRC-06781, License Amendment Request to Clarify Support System Requirements for the Residual Heat Removal System and Control Room Air Conditioning System Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029)2022-12-0101 December 2022 License Amendment Request to Clarify Support System Requirements for the Residual Heat Removal System and Control Room Air Conditioning System Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029) ULNRC-06780, Additional Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505, LDCN 20-0072022-11-30030 November 2022 Additional Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505, LDCN 20-007 ULNRC-06772, 10 CFR 50.59 and 10 CFR 72.48 Summary Report2022-11-23023 November 2022 10 CFR 50.59 and 10 CFR 72.48 Summary Report ULNRC-06777, Operating Quality Assurance Manual (Oqam) Revision 362022-11-16016 November 2022 Operating Quality Assurance Manual (Oqam) Revision 36 ULNRC-06779, ULNRC-06779: Contesting of Green NCV 05000483/2022010-03, Failure to Perform Required Inservice Testing of Residual Heat Removal Heat Exchanger Pneumatically (Air) Operated Outlet and Bypass Valves2022-11-14014 November 2022 ULNRC-06779: Contesting of Green NCV 05000483/2022010-03, Failure to Perform Required Inservice Testing of Residual Heat Removal Heat Exchanger Pneumatically (Air) Operated Outlet and Bypass Valves ULNRC-06765, License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Testing Frequencies (LDCN 2020-0004)2022-11-0303 November 2022 License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Testing Frequencies (LDCN 2020-0004) ULNRC-06773, Results of Steam Generator Tube In-Service Inspection2022-11-0101 November 2022 Results of Steam Generator Tube In-Service Inspection ULNRC-06775, Submittal of Non-Functionality of Loose-Part Detection System Channel for Greater than 30 Days2022-10-27027 October 2022 Submittal of Non-Functionality of Loose-Part Detection System Channel for Greater than 30 Days ULNRC-06771, Correction to Application to Revise Technical Specifications to Adopt TSTF 577, Revised Frequencies for Steam Generator Tube Inspections (LDCN 21-0013)2022-10-25025 October 2022 Correction to Application to Revise Technical Specifications to Adopt TSTF 577, Revised Frequencies for Steam Generator Tube Inspections (LDCN 21-0013) ULNRC-06770, Cycle 25 Commitment Change Summary Report2022-10-19019 October 2022 Cycle 25 Commitment Change Summary Report ULNRC-06766, Correction of Text Contained in Enclosures Provided with Supplements to Request for License Amendment and Regulatory Exemptions for a Risk-Informed Approach to Address GSI-191 and Respond to GL 2004-02 (LDCN 19-0014)2022-09-0808 September 2022 Correction of Text Contained in Enclosures Provided with Supplements to Request for License Amendment and Regulatory Exemptions for a Risk-Informed Approach to Address GSI-191 and Respond to GL 2004-02 (LDCN 19-0014) ULNRC-06767, Presentation Information for Pre-Application Meeting Regarding New License Amendment Request for Use of Framatome Fuel Assemblies2022-09-0606 September 2022 Presentation Information for Pre-Application Meeting Regarding New License Amendment Request for Use of Framatome Fuel Assemblies ULNRC-06764, Revised Response to Request for Additional Information Regarding License Amendment Request for Adoption Off Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015)2022-09-0101 September 2022 Revised Response to Request for Additional Information Regarding License Amendment Request for Adoption Off Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015) ULNRC-06763, Supplement to Application to Revise Technical Specifications to Adopt TSTF 577, Revised Frequencies for Steam Generator Tube Inspection (LDCN 21-0013)2022-09-0101 September 2022 Supplement to Application to Revise Technical Specifications to Adopt TSTF 577, Revised Frequencies for Steam Generator Tube Inspection (LDCN 21-0013) ULNRC-06762, Submittal of Owner'S Activity Reports (OAR-1 Forms) for Cycle/Refuel 252022-08-25025 August 2022 Submittal of Owner'S Activity Reports (OAR-1 Forms) for Cycle/Refuel 25 ULNRC-06758, Union Electric Co. - Renewed Facility Operating License NPF-30, Withdrawal of License Amendment Request and Exemption Request Regarding Transition to Framatome Fuel (LDCN 22-0002)2022-08-0404 August 2022 Union Electric Co. - Renewed Facility Operating License NPF-30, Withdrawal of License Amendment Request and Exemption Request Regarding Transition to Framatome Fuel (LDCN 22-0002) ULNRC-06755, Response to Requests for Additional Information for Proposed Revision to Radiological Emergency Response Plan Regarding Response and Notification Goals2022-07-13013 July 2022 Response to Requests for Additional Information for Proposed Revision to Radiological Emergency Response Plan Regarding Response and Notification Goals ULNRC-06754, Response to Request for Additional Information Regarding Licensee Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications2022-07-0505 July 2022 Response to Request for Additional Information Regarding Licensee Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications ULNRC-06739, Post-Audit Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505 (LDCN 20-0007)2022-06-30030 June 2022 Post-Audit Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505 (LDCN 20-0007) ULNRC-06752, Evacuation Time Estimates Report2022-06-27027 June 2022 Evacuation Time Estimates Report ULNRC-06753, Presentation Information for Pre-Submittal Meeting Regarding Updated Spent Fuel Criticality Safety Analysis2022-06-23023 June 2022 Presentation Information for Pre-Submittal Meeting Regarding Updated Spent Fuel Criticality Safety Analysis ULNRC-06750, Submittal of Cycle 26 Core Operating Limits Report (COLR)2022-06-13013 June 2022 Submittal of Cycle 26 Core Operating Limits Report (COLR) ULNRC-06735, Response to Request for Additional Information Regarding Request for License Amendment and Regulatory Exemptions for Risk-Informed Approach to Address GSI-191 and Respond to Generic Letter 2004-02 (LDCN 19-0014).2022-05-27027 May 2022 Response to Request for Additional Information Regarding Request for License Amendment and Regulatory Exemptions for Risk-Informed Approach to Address GSI-191 and Respond to Generic Letter 2004-02 (LDCN 19-0014). 2024-01-29
[Table view] Category:License-Application for Facility Operating License (Amend/Renewal) DKT 50
MONTHYEARULNRC-06827, Supplement to License Amendment Request Regarding Support System Requirements for Residual Heat Removal and Control Room Air Conditioning Systems Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029)2023-11-20020 November 2023 Supplement to License Amendment Request Regarding Support System Requirements for Residual Heat Removal and Control Room Air Conditioning Systems Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029) ML23215A1972023-08-0303 August 2023 Supplement to License Amendment and Exemption Request Regarding Use of Framatome Gaia Fuel (LDCN 22-0002) ML23088A1202023-03-29029 March 2023 Application to Revise Technical Specifications to Adopt TSTF-501-A, Rev. 1, Evaluation of the Proposed Change ML23088A1242023-03-29029 March 2023 Attachment 4: List of Commitments ULNRC-06751, Application to Revise Technical Specifications to Adopt TSTF-501-A, Rev. 1, Relocate Stored Oil & Lube Oil Volume Values to Licensee Control2023-03-29029 March 2023 Application to Revise Technical Specifications to Adopt TSTF-501-A, Rev. 1, Relocate Stored Oil & Lube Oil Volume Values to Licensee Control ULNRC-06781, License Amendment Request to Clarify Support System Requirements for the Residual Heat Removal System and Control Room Air Conditioning System Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029)2022-12-0101 December 2022 License Amendment Request to Clarify Support System Requirements for the Residual Heat Removal System and Control Room Air Conditioning System Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029) ULNRC-06780, Additional Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505, LDCN 20-0072022-11-30030 November 2022 Additional Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505, LDCN 20-007 ML22307A3142022-11-0303 November 2022 Attachment 2: Proposed Technical Specification 5.5.16 Changes (Markup) ML22307A3122022-11-0303 November 2022 Evaluation of the Proposed Change ML22307A3152022-11-0303 November 2022 Attachment 3: Proposed Technical Specification 5.5.16 Changes (Clean Pages) ML22307A3132022-11-0303 November 2022 Attacchment 1: 54032-CALC-01, Revision 1,Callaway Plant: Evaluation of Risk Significance of Permanent ILRT Extension ML22285A1192022-10-12012 October 2022 Attachment 2 to Enclosure 1: Revised Clean Technical Specifications ML22285A1242022-10-12012 October 2022 Attachment 7 to Enclosure 1: ANP-3943NP, Callaway Small Break LOCA Analysis with Gaia Fuel Design, Revision 1, Dated October 2022 ML22285A1232022-10-12012 October 2022 Attachment 6 to Enclosure 1: ANP-3944NP, Callaway Realistic Large Break LOCA Analysis with Gaia Fuel Design, Revision 1, Dated October 2022 ML22285A1222022-10-12012 October 2022 Attachment 5 to Enclosure 1: ANP-3947NP, Callaway Unit 1 License Amendment Request Inputs for Use of Framatome Fuel, Revision 3, Dated October 2022 ML22285A1182022-10-12012 October 2022 Attachment 1 to Enclosure 1: Marked-Up Existing Technical Specifications ML22285A1172022-10-12012 October 2022 Enclosure 1: Description and Assessment of the Proposed Change ML22285A1202022-10-12012 October 2022 Attachment 3 to Enclosure 1: Marked-Up Technical Specifications Bases (for Information Only) ML22285A1252022-10-12012 October 2022 Attachment 8 to Enclosure 1: ANP-3969NP, Callaway Non-LOCA Summary Report, Revision 2, Dated October 2022 ULNRC-06768, Attachment 4 to Enclosure 1: Framatome Affidavits for Withholding from Public Disclosure2022-10-0707 October 2022 Attachment 4 to Enclosure 1: Framatome Affidavits for Withholding from Public Disclosure ML22242A2932022-08-29029 August 2022 Attachment 5 to Enclosure 1 - Criticality Safety Evaluation Report ML22242A1242022-08-29029 August 2022 Enclosure 1: Description and Assessment of the Proposed Change ML22242A1262022-08-29029 August 2022 Attachment 2 to Enclosure 1 - Revised Clean Technical Specifications ML22242A1272022-08-29029 August 2022 Attachment 3 to Enclosure 1 - Marked-Up Technical Specification Bases ML22242A1252022-08-29029 August 2022 Attachment 1 to Enclosure 1 - Marked-Up Existing Technical Specifications ML22216A2412022-08-0404 August 2022 Application to Revise Technical Specifications to Adopt TSTF 577, Revised Frequencies for Steam Generator Tube Inspections (LDCN 21-0013) - Description and Assessment ML22181B1392022-06-30030 June 2022 Attachment 9 - Responses to NRC Audit Questions ULNRC-06723, Attachment 4 to Enclosure 1 - Holtec Affidavit for Withholding2022-06-30030 June 2022 Attachment 4 to Enclosure 1 - Holtec Affidavit for Withholding ML22181B1382022-06-30030 June 2022 Attachment 8 - Revised Operating License Changes ML22181B1372022-06-30030 June 2022 Attachment 7 - Proposed Operating License Changes (Mark-up) ML22181B1312022-06-30030 June 2022 Attachment 1 - Replacement for Attachment 1, Description and Assessment, of ULNRC-06688 ML22181B1352022-06-30030 June 2022 Attachment 5 - Replacement for Attachment 5, Cross-Reference of TSTF-505 and Callaway Technical Specifications, of ULNRC-06688 ML22153A1762022-06-0202 June 2022 Enclosure 1 - Description and Assessment of the Proposed Change ML22153A1752022-06-0202 June 2022 ULNRC-06729: Application for Technical Specification Change and Exemption Request Regarding Transition to Framatome Fuel, LDCN 22-0002 ML22153A1812022-06-0202 June 2022 Attachment 5 - Non-Proprietary Version of Licensing Summary Report ML22039A3192022-02-0808 February 2022 Enclosure 1: Callaway Plant - Description of the Proposed Changes ML22027A8072022-01-27027 January 2022 Enclosure 2: Callaway, Unit 1, License Amendment Request for Risk-Informed Approach to Resolution of Generic Letter 2004-02 ULNRC-06690, Enclosure 5: Callaway, Unit 1, LAR Supplement to Address Audit Discussion Points Summarized in NRC Letter Dated September 14, 2021 (ML21238A138)2022-01-27027 January 2022 Enclosure 5: Callaway, Unit 1, LAR Supplement to Address Audit Discussion Points Summarized in NRC Letter Dated September 14, 2021 (ML21238A138) ML21335A4532021-12-0101 December 2021 Enclosure 1: Full Scope Implementation of Alternative Source Term - Evaluation of Proposed Changes ML21335A4522021-12-0101 December 2021 Supplement to License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications ML21328A1842021-11-24024 November 2021 Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505, LDCN 20-0007 ML21294A4042021-10-21021 October 2021 Enclosure 4 - Information Supporting Justification of Excluding Sources of Risk Not Addressed by the PRA Models ML21294A4102021-10-21021 October 2021 Enclosure 10 - Program Implementation ML21294A4112021-10-21021 October 2021 Enclosure 11 - Monitoring Program ML21294A4122021-10-21021 October 2021 Enclosure 12 - Risk Management Action Examples ML21294A4092021-10-21021 October 2021 Enclosure 9 - Key Assumptions and Sources of Uncertainty ML21294A4082021-10-21021 October 2021 Enclosure 8 - Attributes of the Real Time Risk Model ML21294A4072021-10-21021 October 2021 Enclosure 7 - PRA Model Update Process ML21294A4062021-10-21021 October 2021 Enclosure 6 - Justification of Application of At-Power PRA Models to Shutdown Modes ML21294A4032021-10-21021 October 2021 Enclosure 3 - Information Supporting Technical Adequacy of PRA Models Without PRA Standards Endorsed by Regulatory Guide 1.200, Revision 2 2023-08-03
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'WAmeren Callaway Plant MISSOURI June 17, 2014 ULNRC-06125 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 10 CFR 2.101 10 CFR 2.109(b) 10 CFR 50.4 10 CFR 50.30 10 CFR 51.53(c) 10 CFR 54 Ladies and Gentlemen:
DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT 1 UNION ELECTRIC CO.
FACILITY OPERATING LICENSE NPF-30 AMENDMENT37TOTHECALLAWAYLRA
References:
- 1) ULNRC-05830 dated December 15,2011 By the Reference !letter, Union Electric Company (Ameren Missouri) submitted a license renewal application (LRA) for Callaway Plant Unit 1. As a result of a phone call with the staff on June 12, 2014 and after further investigation, the loss of containment tendon prestress associated with the containment tendon predicted lower limit (PLL) time-limited aging analysis (TLAA) is revised to be dispositioned under 10 CFR 54.21 (c)(1 )(iii) and managed by the Concrete Containment Tendon Prestress program for the period of extended operation.
Enclosure 1 of this letter provides LRA Amendment 37, which modifies the LRA to change the containment tendon PLL analysis from a TLAA disposition category under 10 CFR 54.21(c)(l)(ii) to a TLAA disposition category under 10 CFR 54.21(c)(l)(iii).
There are no changes to license renewal commitments contained in this transmittal.
If you have any questions with regard to this amendment, please contact me at (573) 489-9435 or Roger Wink at (314) 225-1561.
PO Box 620 Fulton, MD 65251 AmerenMissouri.com ............ ..
STARS
ULNRC-06125 June 17, 2014 Page2 I declare under penalty of perjury that the foregoing is true and correct.
Sincerely, Executed on: J U.V\e l7' ~ '~
0 Sarah Kovaleski Director, Engineering Design DS/nls : Amendment 37, LRA Changes
ULNRC-06125 June 17, 2014 Page 3 cc: Mr. Marc L. Dapas Regional Administrator U.S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. John Daily, Senior Project Manager Project Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-11F1 Washington, DC 20555 Mr. Fred Lyon Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-8B 1 Washington, DC 20555-2738 Mr. Gregory A. Pick U.S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511
ULNRC-06125 June 17, 2014 Page4 Index and send hardcopy to QA File A160.0761 Hardcopy:
Certrec Corporation 4150 International Plaza Suite 820 Fort Worth, TX 76109 (Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)
Electronic distribution for the following can be made via Tech Spec ULNRC Distribution:
F. M. Diya D. W. Neterer L. H. Graessle B.L.Cox M. A. McLachlan G. S. Kremer S. G. Kovaleski J. S. Geyer S.M. Maglio T. B. Elwood Corporate Communications NSRB Secretary B. C. Daniels R. C. Wink STARS Regulatory Affairs Mr. John O'Neill (Pillsbury Winthrop Shaw Pittman LLP)
Missouri Public Service Commission Ms. Leanne Tippett-Mosby (DNR)
E. A. Blocher (STARS PAM COB)
ULNRC-06125 June 17, 2014 Page 1 of 6 Amendment 37, LRA Changes Enclosure 1 Summary Table Affected LRA Section LRA As-Submitted Paae Number(s)
Table 4.1-1 TLM Category 4 4.1-5 Section 4.5 4.5-1 throu_g_h 4.5-3 Section A3.4 A-31
ULNRC-06125 June 17, 2014 Page 2 of 6 Callaway Plant License Renewal Application Amendment 37 Revised TLAA Category 4 of Table 4.1-1 to change the disposition category for the concrete containment tendon prestress TLAA associated with the predicted lower limit TLAA from Projection (10 CFR 54.21(c)(1)(ii)) to Aging Management (10 CFR 54.21 (c)(1 )(iii)).
TLAA Category 4 of Table 4.1-1 (Page 4.1-5) is revised as follows (new text shown underlined and deleted text shown in strikethrough):
Table 4.1-1 List of TLAAs TLAA Disposition Dispos;~r 1 S*e etion Cat~gary Cate.go >
- 4. Concrete Containment Tendon Prestress i, ii, iii 4.5
ULNRC-06125 June 17, 2014 Page 3 of6 Callaway Plant License Renewal Application Amendment 37 Revised Section 4.5 to change the disposition category for the concrete containment tendon prestress TLAA associated with the predicted lower limit TLAA from Projection (10 CFR 54.21(c)(1)(ii)) to Aging Management (10 CFR 54.21(c)(1)(iii)).
Section 4.5 (Pages 4.5-1 through 4.5-3) is revised as follows (new text shown underlined and deleted text shown in strikethrough):
4.5 CONCRETE CONTAINMENT TENDON PRESTRESS The Callaway containment structure is a prestressed, post-tensioned concrete structure with a cylindrical wall, a hemispherical dome, and a flat foundation slab. Post-tensioned tendons compress the concrete and permit the structure to withstand design basis accident internal pressures.
The Callaway post-tensioning system consists of the following tendon groups:
- 86 vertical, inverted U-shaped tendons, extending through the full height of the cylindrical walls and over the dome, and anchored at the bottom of the base slab.
- 165 horizontal hoop tendons. Together, 135 cylinder hoop tendons and 30 dome hoop tendons make up the horizontal tendon group. The 135 cylinder hoop tendons are anchored at buttresses located 240 degrees apart. Three adjacent cylinder tendons anchored at alternate buttresses result in two complete hoop tendons. The 30 hemispherical dome hoop tendons start at the springline and continue up to an approximate 45-degree vertical angle from the springline. The inverted U-shaped tendons discussed above are also utilized to prestress the hemispherical dome.
Each tendon consists of approximately 170, % in. high strength steel wires. The ultimate strength of each tendon is approximately 1,000 tons. The prestressing load is transferred to the steel bearing plates embedded in the structure. The unbonded tendons are installed in tendon ducts (sheathing), which is filled with a petroleum-based corrosion inhibitor after tensioning.
The steel tendons, in tension, relax with time; and the concrete structure, which the tendons hold in compression, both creeps and shrinks with time. Therefore, to ensure the integrity of the containment pressure boundary under design basis accident loads, tendon surveillances are performed under the inservice inspection program per ASME Section XI Subsection IWL.
The acceptance criteria compare the individual tendons against the predicted lower limit (PLL) force lines, and the surveillance includes a regression analysis for the vertical and horizontal tendon groups, to confirm whether average prestresses are expected to remain above their minimum required values (MRVs) for the remainder of the licensed operating period. {The dome tendons are included in the horizontal tendon group regression analysis.)
The PLL and the regression analyses predict the future performance of the post-tensioning system to the end of design life and are TLAAs.
ULNRC-06125 June 17, 2014 Enclosure 1 Page 4 of6 The tendon surveillance results from 2010, the 25-year tendon surveillance (Reference 9),
found (1) no significant abnormal degradation, and (2) no lift off values from this surveillance below the predicted force line (the first action limit).
The discussion below reviews the three parameters used in the implementation of the tendon surveillance program: MRV, PLL force lines, and the regression analysis.
Minimum Required Value The MRV is the average tendon prestress force used in the prestressed concrete containment design analysis. The design prestress must account for the loss of prestressing force after the initial tensioning in accordance with Regulatory Guide 1.35.1. The MRV is the acceptance criterion for the average tendon prestressing force over the entire plant life and does not vary with the plant life. Therefore the MRV is not a TLAA, in accordance with 10 CFR 54.3(a) criterion 3.
Predicted Lower Limit The Concrete Containment Tendon Prestress program (Section 83.3). which is part of the ASME Section XI. Subsection IWL lnservice Inspection program. manages loss of tendon prestress. Predicted force lines are incorporated in the tendon surveillanee Concrete Containment Tendon Prestress program to identify any abnormal degradation in tendon prestressing force. The predicted loss lines determine the PLL force lines which are the acceptance criteria of individual tendons. The calculations of PLL lines are consistent with NRC Regulatory Guide 1.35.1, Determining Prestressing Forces for Inspection of Prestressed Concrete Containments. As part of the Tendon Surveillance program, deseribed in Appendix B, Seetion 83.3, the PLL foree lines will be extended to 60 years. Actual measured values for each tendon are compared to their respective PLL values. with acceptance criteria consistent with ASME Section XI. Subsection IWL requirements. +J::Hs Therefore. loss of tendon prestress will be managed through the period of extended operation and the TLAA is dis positioned in accordance with 10 CFR 54.21 (c)(1 )(ii) 10 CFR 54.21 (c)( 1)(iii).
Disposition: Projection, 10 CFR 54.21(c)(1)(ii) Aging Management. 10 CFR 54.21 (c)(1)(iiil Regression Analysis The lift-off trend lines are necessary to demonstrate that the tendon prestressing force will remain above the MRV at least until the next scheduled surveillance. The tendon surveillances are scheduled every five years. The trend lines are calculated by regression of individual tendon lift off data and are therefore consistent with NRC Information Notice 99-10, Revision 1, Attachment 3.
The regression analysis trend lines indicate lift-offs in excess of the MRV for at least 60 years. The IWL Inspection Report includes the results through the 2010, 25-year surveillance. Table 4.5-1, Vertical Tendon Regression Analysis and Table 4.5-2, Horizontal Tendon (Cylinder and Dome) Regression Analysis summarize the input data of the 2010 regression analyses. Figure 4.5-1, Regression Analysis of Vertical Tendons and Figure
ULNRC-06125 June 17, 2014 Page 5 of 6 4.5-2, Regression Analysis of Horizontal Tendons show the results of the surveillance and the regression analyses.
The current analysis demonstrates that the average tendon prestresses in each of the vertical group and hoop tendon group will remain above their MRVs through 60 years of operation; therefore the analysis is valid for the period of extended operation. The TLAA is dispositioned in accordance with 10 CFR 54.21 ( c)(1 )(i).
Disposition: Validation, 10 CFR 54.21(c)(1)(i)
ULNRC-06125 June 17, 2014 Page 6 of6 Appendix A Final Safety Analysis Report Supplement A3.4 CONCRETE CONTAINMENT PRESTRESS Predicted Lower Limit Predicted lower limit force lines are incorporated in the tendon surveillanee Concrete Containment Tendon Prestress program to identify any abnormal degradation in tendon prestressing force. The calculations of predicted lower limit lines are consistent with NRC Regulatory Guide 1.35.1. 1\s part of the Tendon Surveillanee program, deseribed in Seetion 1\2.3, the PLL foree lines will be extended to 60 years. Actual measured values for each tendon are compared to their respective PLL values. with acceptance criteria consistent with ASME Section XI. Subsection IWL requirements. +ffis..Therefore. loss of tendon prestress will be managed through the period of extended operation and the TLAA is dispositioned in accordance with 10 CFR 54.21(e)(1)(ii) 10 CFR 54.21(c)(1)(iii).
Regression Analysis The trend lines are calculated by regression of individual tendon lift off data and are consistent with NRC Information Notice 99-10, Degradation of Prestressing Tendon Systems in Prestressed Concrete Containments, Revision 1, Attachment 3. The regression analysis trend lines indicate lift-offs in excess of the MRV for at least 60 years ; therefore the analysis is valid for the period of extended operation. The TLAA is dispositioned in accordance with 10 CFR 54.21 (c)(1 )(i).
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