Letter Sequence Approval |
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MONTHYEARML0300300222003-01-0202 January 2003 Issuance of License Amendments 163 & 125 Pressure/Temperature Curves Project stage: Approval ML0300603422003-01-0202 January 2003 Technical Specification Pages for License Amendments 163 and 125 Pressure/Temperature Curves Project stage: Other 2003-01-02
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Category:Letter
MONTHYEARIR 05000352/20243012024-02-0202 February 2024 Initial Operator Licensing Examination Report 05000352/2024301 and 05000353/2024301 IR 05000352/20230042024-01-31031 January 2024 Integrated Inspection Report 05000352/2023004 and 05000353/2023004 IR 05000352/20240112024-01-31031 January 2024 Information Request to Support Post-Approval Site Inspection for License Renewal; Inspection Report 05000352/2024011 ML24026A2962024-01-26026 January 2024 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System (PPS)- Syrs, . ML24004A0342024-01-17017 January 2024 Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0026 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting)) IR 05000352/20230102024-01-11011 January 2024 Age-Related Degradation Report 05000352/2023010 and 05000353/2023010 IR 05000352/20234012023-12-21021 December 2023 Cybersecurity Inspection Report 05000352/2023401 and 05000353/2023401 ML23321A2362023-12-14014 December 2023 Issuance of Amendment Nos. 262 and 224 Adoption of TSTF-477, Revision 3 and Associated Technical Specification Changes ML23278A1292023-12-14014 December 2023 Units 1 & 2; Limerick, Units 1 & 2; Nine Mile Point, Units 1 & 2; and Peach Bottom, Units 2 & 3 -Revision to Approved Alternatives to Use Boiling Water Reactor Vessel and Internals Project Guidelines ML23333A2182023-11-29029 November 2023 Operator Licensing Examination Approval ML23325A2062023-11-21021 November 2023 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System ML23313A0432023-11-13013 November 2023 Summary of Regulatory Audit in Support of Amendment Request for Control Room Air Conditioning Technical Specifications ML23317A1192023-11-10010 November 2023 Constellation Energy Generation, LLC - 2023 Annual Report - Guarantees of Payment of Deferred Premiums IR 05000352/20230032023-10-27027 October 2023 Integrated Inspection Report 05000352/2023003 and 05000353/2023003 and Independent Spent Fuel Storage Installation Inspection 07200065/2023001 ML23297A1722023-10-24024 October 2023 Request for Information for a Biennial Problem Identification and Resolution Inspection; Inspection Report 05000352/2024010 and 05000353/2024010 IR 05000352/20235012023-10-17017 October 2023 Emergency Preparedness Biennial Exercise Inspection Report 05000352/2023501 and 05000353/2023501 RS-23-097, Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans2023-10-12012 October 2023 Constellation Energy Generation, LLC, Advisement of Leadership Changes and Submittal of Updated Standard Practice Procedures Plans ML23279A0612023-10-0505 October 2023 Paragon Energy Solutions LLC, Part 21 Final Report Re Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23276A5162023-10-0303 October 2023 Federal Emergency Management Agency Level 1 Finding from 2023 Evaluated Emergency Preparedness Exercise ML23275A1082023-09-29029 September 2023 FEMA Level 1 Findings Limerick NPP- Boyertown/Colebrookdale ML23241A9452023-09-27027 September 2023 Generation Station, Units 1 and 2 Regulatory Audit Plan Supporting Review of the Equipment Qualification Portion of Limerick Digital Instrumentation and Controls License Amendment Request ML23269A0522023-09-26026 September 2023 Request for Information and Notification of Conduct of IP 71111.21.N.04, Age-Related Degradation, Reference Inspection Report 05000352/2023010 and 05000353/2023010 ML23255A0952023-09-12012 September 2023 Resubmittal of License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System (PPS) to Address ML23254A0242023-09-0606 September 2023 Paragon Energy Solutions LLC, Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23249A1002023-09-0606 September 2023 Requalification Program Inspection IR 05000352/20230052023-08-31031 August 2023 Updated Inspection Plan for Limerick Generating Station, Units 1 and 2 (Report 05000352/2023005 and 05000353/2023005) ML23248A2082023-08-31031 August 2023 UFSAR Cover Page ML23242A2172023-08-30030 August 2023 Response to Request for Additional Information for Application to Adopt TSTF-477, Revision 3, Add Action for Two Inoperable Control Room AC Subsystems and Associated Technical Specification Changes NMP2L2851, Relief Request Associated with Successive Inspections for Generic Letter 88-01 / BWRVIP-75-A Augmented Examinations2023-08-25025 August 2023 Relief Request Associated with Successive Inspections for Generic Letter 88-01 / BWRVIP-75-A Augmented Examinations ML23228A0942023-08-16016 August 2023 Response to Request for Additional Information for Supplemental License Amendment Request to Revise Technical Specifications and Exemption Request from Requirements of 10CFR50.62 ATWS Rule to Support the . IR 05000352/20230022023-08-14014 August 2023 Integrated Inspection Report 05000352/2023002 and 05000353/2023002 ML23220A0182023-08-0808 August 2023 Information Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection 05000352/2023401 and 05000353/2023401 RS-23-087, Revision to Approved Alternatives Associated with the Use of the BWRVIP Guidelines in Lieu of Specific ASME Code Requirements on Reactor2023-08-0404 August 2023 Revision to Approved Alternatives Associated with the Use of the BWRVIP Guidelines in Lieu of Specific ASME Code Requirements on Reactor ML23212B2362023-07-31031 July 2023 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System - WEC Documents ML23212B1052023-07-31031 July 2023 Supplement to License Amendment Request to Revise Technical Specifications and Exemption Request from Requirements of 10CFR50.62 ATWS Rule to Support the Digital Modernization Project Installation - Revise ML23202A2192023-07-21021 July 2023 Response to Request for Additional Information for Supplemental License Amendment Request to Revise Technical Specifications and Exemption Request from Requirements of 10CFR50.62 ATWS Rule to Support the . ML23193B0122023-07-20020 July 2023 Audit Plan in Support of Review of License Amendment Request and Exemption Request for Digital Instrumentation and Controls Installation Support (Epids L-2023-LLA-0025 and L-2023-LLE-0005) ML23187A0962023-07-19019 July 2023 Generation Station, Unit Nos. 1 and 2 - Revised Estimated Review Completion Date Concerning License Amendment Request to Replace Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection System ML23208A1522023-07-0606 July 2023 PEMA Letter Dated 7-6-23 Re Limerick Exercise 9-26-23 ML23177A2242023-06-26026 June 2023 Supplement to License Amendment Request to Revise the Licensing and Design Basis to Incorporate the Replacement of Existing Safety-Related Analog Control Systems with a Single Digital Plant Protection . ML23145A1972023-06-23023 June 2023 Correction to the Renewed Facility Operating License Pages in Amendment Nos. 255, 256, 257, 258, 259, and 260 2024-02-02
[Table view] Category:License-Operating (New/Renewal/Amendments) DKT 50
MONTHYEARML23321A2362023-12-14014 December 2023 Issuance of Amendment Nos. 262 and 224 Adoption of TSTF-477, Revision 3 and Associated Technical Specification Changes ML23145A1972023-06-23023 June 2023 Correction to the Renewed Facility Operating License Pages in Amendment Nos. 255, 256, 257, 258, 259, and 260 ML23089A1242023-05-17017 May 2023 Issuance of Amd Nos. 261 & 223 Alternate Seismic Approach for Risk-Informed Categorization and Treatment of Structures, Systems a Components for NPR and Denial Proposed Alternative Defense in Depth and Pressure Boundary Component ML22348A1762023-03-0707 March 2023 Issuance of Amendment Nos. 260 and 222 Regarding Technical Specifications 3.3.7.4, Remote Shutdown System Instrumentation and Controls ML22272A0372023-01-0303 January 2023 Issuance of Amendment Nos. 258 and 220 Regarding Technical Specifications 3/4.8.1, AC Sources-Operating and 3/4.5.1, ECCS-Operating ML22090A0862022-04-29029 April 2022 Amendments to Adopt TSTF-541,Rev.2,Add Exceptions to Surveillance Requirements for Valves,Dampers Locked in Actuated Position ML22003A1862022-02-17017 February 2022 Issuance of Amendment Nos. 256 and 218 Technical Specification Changes Related to Technical Specifications Task Force (TSTF) Traveler 205-A, Revision 3, Revision of Channel Calibration, Channel Functional Test, and Related Definitions ML22031A2762022-02-0101 February 2022 Issuance of Indemnity Agreement Amendments-Enclosure 2 ML22021B6602022-02-0101 February 2022 Issuance of Amendments Related to Order Approving Transfer of Licenses (EPID L-2022-LLM-0000)-Enclosure 1 ML22021B6592022-02-0101 February 2022 Issuance of Amendments Related to Order Approving Transfer of Licenses (EPID L-2022-LLM-0000) (Letter) ML21347A0382022-01-13013 January 2022 Issuance of Amendments to Revise Reactor Coolant Leakage Requirements ML21263A2482021-10-0101 October 2021 Audit Plan Supporting LAR Request to Implement Alternate Defense-in-Depth, Pressure Boundary, & Seismic Tier 1 Categorization Process in Accordance with Requirements of 10 CFR 50.69 ML21181A0442021-09-28028 September 2021 Issuance of Amendment Nos. 253 and 215 Technical Specification Changes Related to Relocation of Pressure and Temperature Limit Curves to the Pressure and Temperature Limits Report ML21032A2702021-02-22022 February 2021 Issuance of Amendment Nos. 252 and 214, Revise Technical Specifications to Adopt Technical Specifications Task Force Traveler TSTF-582, Revision 0, RPV WIC Enhancements ML21013A0052021-02-0404 February 2021 Issuance of Amendments to Adopt Technical Specifications Task Traveler TSTF-568, Revise Applicability of BWR/4 TS 3.6.2.5 and TS 3.6.3.2 ML20255A0632020-12-0101 December 2020 Issuance of Amendment Nos. 250 and 212 Technical Specification Changes Related to Inservice Testing Program of the Safety Relief Valves ML20239A7252020-11-30030 November 2020 Issuance of Amendment Nos. 249 and 211 Adopt TSTF-484, Revision 0, Use of TS 3.10.1 for Scram Time Testing Activities ML20160A4592020-08-0707 August 2020 Issuance of Amendment Nos. 248 and 210 Revise Technical Specifications to Support Implementation of 10 CFR 50.69 ML20141L6362020-07-10010 July 2020 Issuance of Amendments Based on TSTF-427,Allowance for Nontechnical Specification Barrier Degradation on Supported System Operability,Rev 2 ML20134H9402020-07-0808 July 2020 Issuance of Amendments Revising the High Radiation Area Administrative Controls ML20098C9222020-04-0909 April 2020 Issuance of Amendment No. 245 Regarding Technical Specifications Change to Allow a One-Time Increase in Main Steam Isolation Valve Allowable Leakage Rate (EPID L-2020-LLA-0064) (Emergency Circumstances) ML20021A0702020-04-0606 April 2020 Issuance of Amendments to Delete License Conditions for Decommissioning Trusts ML20034G5462020-03-12012 March 2020 Issuance of Amendments Revising Instrument Testing and Calibration Definitions ML20034F6372020-02-28028 February 2020 Issuance of Amendment Nos. 240 and 203 to Implement TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4B ML19331A7252020-02-14014 February 2020 Issuance of Amendments Revising Emergency Action Levels ML19207A0062019-10-0303 October 2019 Issuance of Amendment Nos. 237 and 200 Revise Technical Specifications to Allow Penetration Flow Path Isolation for Inoperable Isolation Actuation Instrumentation ML19176A0332019-08-28028 August 2019 Issuance of Amendments to Adopt TSTF-564, Safety Limit MCPR RS-19-017, Application to Remove the Table of Contents from Technical Specifications and Place It Under Licensee Control2019-06-14014 June 2019 Application to Remove the Table of Contents from Technical Specifications and Place It Under Licensee Control ML19078A0182019-05-24024 May 2019 Issuance of Amendment Nos. 235, 198, 14, 325, and 328 to Revise the Emergency Response Organization Staffing Requirements ML19036A9132019-02-28028 February 2019 Issuance of Amendment Nos. 234 and 197 Adopt TSTF-372, Revision 4, Addition of LCO 3.0.8, Inoperability of Snubbers ML18304A3652019-01-16016 January 2019 2. Issuance of Amendments to Revise the Average Power Range Monitor Requirements ML18255A2782018-11-27027 November 2018 Issuance of Amendment Nos. 232 and 195 to Revise Technical Specifications to Lower the Minimum Standby Liquid Control System Pump Flowrate ML18206A2822018-08-0202 August 2018 Issuance of Amendments to Relocate the Staff Qualification Requirements ML18165A1622018-07-31031 July 2018 Issuance of Amendment Nos. 230 and 193 to Adopt 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems and Components (CAC Nos. MF9873 and MF9874; EPID L-2017-LLA-0275) ML18113A0452018-05-29029 May 2018 Issuance of Amendments to Revise Technical Specification Requirements for Secondary Containment ML18025B7692018-02-28028 February 2018 Issuance of Amendment Nos. 228 and 191 Revising Technical Specifications to Relocate Main Condenser Offgas Monitoring Instrumentation and Gaseous Effluents TSs (CAC Nos. MF9650 and MF9651; EPID L-2017-LLA-0214) ML18017A2012018-02-27027 February 2018 Issuance of Amendment Nos. 227 and 190 Revising Technical Specifications to Adopt TSTF-542, Revision 2, Reactor Pressure Vessel Water Inventory Control (CAC Nos. MF9967 and MF9968; EPID L-2017-LLA-0260) ML17163A3552017-08-31031 August 2017 Calvert Cliff, Clinton, Dresden, LaSalle, Limerick, Nine Mile Point, Peach Bottom, Quad Cities, R. E. Ginna, and Three Miles Island - Issuance of Amendments to Adopt TSTF-529, Clarify Use and Application Rules(Cac Nos. MF9470-MF9490) ML17073A0672017-05-26026 May 2017 Issuance of Amendments Revising the Technical Specification Requirements for the Inservice Testing Program (CAC Nos. MF8238 - MF8256) ML17103A0812017-05-16016 May 2017 Issuance of Amendments to Adopt Technical Specifications Task Force (TSTF) Traveler TSTF-545 ML17024A0892017-03-29029 March 2017 Issuance of Amendments Safety Limit Minimum Critical Power Ratio Change ML17047A3532017-03-15015 March 2017 Issuance of Amendment Partial Length Fuel Rod Burnup ML16356A2722017-02-28028 February 2017 Issuance of Amendments to Revise High Pressure Coolant Injection System and Reactor Core Isolation Cooling System Actuation Instrumentation Technical Specifications ML16335A0382016-12-29029 December 2016 Issuance of Amendments to Revise Technical Specification Snubber Requirements ML16307A0122016-12-0505 December 2016 Correction to Amendment No. 185 Regarding Application of an Alternative Source Methodology ML16041A0212016-03-15015 March 2016 Issuance of Amendment Safety Limit Minimum Critical Power Ratio Change ML15356A1402016-01-28028 January 2016 Issuance of Amendments Secondary Containment Access Openings ML15218A5012015-09-15015 September 2015 Issuance of Amendment Nos. 219 and 181 Proposed Change to Add New Limiting Conditions for Operation 3.0.5 and 3.0.6 ML15153A2822015-07-30030 July 2015 Issuance of Amendments Revising the Completion Date for Milestone 8 of the Cyber Security Plan (TAC Nos. MF4728, MF4729, MF4730, MF4731, MF4732, MF4733, MF4734, MF4735, MF4736, MF4737, MF4738, MF4739, MF4740 ML15141A0582015-07-28028 July 2015 Issuance of Amendments Regarding Emergency Action Level Schemes (TAC Nos. MF4232-MF4251) 2023-06-23
[Table view] Category:Safety Evaluation
MONTHYEARML23321A2362023-12-14014 December 2023 Issuance of Amendment Nos. 262 and 224 Adoption of TSTF-477, Revision 3 and Associated Technical Specification Changes ML23089A1242023-05-17017 May 2023 Issuance of Amd Nos. 261 & 223 Alternate Seismic Approach for Risk-Informed Categorization and Treatment of Structures, Systems a Components for NPR and Denial Proposed Alternative Defense in Depth and Pressure Boundary Component ML23094A1792023-05-17017 May 2023 Amd Nos. 261 & 223 Alternate Seismic Approach for Risk-Informed Categorization & Treatment of Structures, Systems, Components for NPR & Denial of Proposed Alternative Defense in Depth & Pressure Boundary Component-Partial Denial SE Encl 4 ML23094A1712023-05-17017 May 2023 Amd Nos. 261 & 223 Alternate Seismic Approach for Risk-Informed Categorization & Treatment of Structures, Systems and Components for NPR and Denial Proposed Alternative Defense in Depth and Pressure Boundary Component ML23114A2522023-04-28028 April 2023 Request to Use a Provision of a Later Edition of the ASME Boiler & Pressure Vessel Code, Section XI ML22348A1762023-03-0707 March 2023 Issuance of Amendment Nos. 260 and 222 Regarding Technical Specifications 3.3.7.4, Remote Shutdown System Instrumentation and Controls ML23005A0082023-02-23023 February 2023 Technical Specifications to Correct Non-conservative Technical Specification Table 3.3.2-1 for Main Steam Line Isolation Trip Function 1.G (EPID L 2020 Lla 0034) Amds. 259 and 221 ML22272A0372023-01-0303 January 2023 Issuance of Amendment Nos. 258 and 220 Regarding Technical Specifications 3/4.8.1, AC Sources-Operating and 3/4.5.1, ECCS-Operating ML22293B8052022-11-30030 November 2022 Constellation Energy Generation, Llc_Fleet - Request to Authorize Use Honeywell Mururoa V4F1 R Supplied Air Suits ML22090A0862022-04-29029 April 2022 Amendments to Adopt TSTF-541,Rev.2,Add Exceptions to Surveillance Requirements for Valves,Dampers Locked in Actuated Position ML22094A0012022-04-15015 April 2022 Constellation Energy Generation, LLC - Proposed Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles (Epids L-2021-LLR-0057 and L-2021-LLR-0058) ML22003A1862022-02-17017 February 2022 Issuance of Amendment Nos. 256 and 218 Technical Specification Changes Related to Technical Specifications Task Force (TSTF) Traveler 205-A, Revision 3, Revision of Channel Calibration, Channel Functional Test, and Related Definitions ML21347A0382022-01-13013 January 2022 Issuance of Amendments to Revise Reactor Coolant Leakage Requirements ML21277A2482021-11-16016 November 2021 Letter with Enclosure 4, Safety Evaluation for Transfer of Licenses and Draft Conforming License Amendments (Public Version) ML21280A0782021-10-27027 October 2021 Proposed Alternative to Use of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code Case N-893 (Epids L-2020-LLR-0147 and L-2020-LLR-0148) ML21181A0442021-09-28028 September 2021 Issuance of Amendment Nos. 253 and 215 Technical Specification Changes Related to Relocation of Pressure and Temperature Limit Curves to the Pressure and Temperature Limits Report ML21230A2062021-09-0303 September 2021 Proposed Alternative to Use ASME OM Code Case OMN-28 ML21172A2682021-09-0202 September 2021 Issuance of Relief Request I4r-24 Associated with Residual Heat Removal Heat Exchanger Category C-A and C-B Examinations for the Remainder of the Fourth 10-Year Isi Interval and Up to the End of the 60-Year Operating License ML21216A2202021-08-0505 August 2021 Proposed Alternative to Eliminate Certain Documentation Requirements for Pressure Retaining Bolting ML21166A1682021-06-25025 June 2021 ML21032A2702021-02-22022 February 2021 Issuance of Amendment Nos. 252 and 214, Revise Technical Specifications to Adopt Technical Specifications Task Force Traveler TSTF-582, Revision 0, RPV WIC Enhancements ML21013A0052021-02-0404 February 2021 Issuance of Amendments to Adopt Technical Specifications Task Traveler TSTF-568, Revise Applicability of BWR/4 TS 3.6.2.5 and TS 3.6.3.2 ML21028A6732021-02-0303 February 2021 Request to Use a Provision of Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI (EPID L-2020-LLR-011 ML20322A0092020-12-10010 December 2020 Issuance of Alternative Requests 41-VRR-8 and 41-VRR-7 Regarding Certain Inservice Testing Program Requirements for Safety Relief Valves ML20255A0632020-12-0101 December 2020 Issuance of Amendment Nos. 250 and 212 Technical Specification Changes Related to Inservice Testing Program of the Safety Relief Valves ML20239A7252020-11-30030 November 2020 Issuance of Amendment Nos. 249 and 211 Adopt TSTF-484, Revision 0, Use of TS 3.10.1 for Scram Time Testing Activities ML20287A1302020-11-0505 November 2020 Review of Quality Assurance Program Changes ML20280A7572020-11-0505 November 2020 Revised Safety Evaluation of Relief Requests GVRR-8, 11 PRR-1, 90 PRR-1, and 47 VRR-2 Regarding the Fourth 10-Year Interval of the Inservice Testing Program (EPID L-2018-LLR-0384 Through EPID L-2018-LLR-0387) ML20269A2002020-09-30030 September 2020 Request to Use a Provision of Later Edition of the ASME Boiler and Pressure Vessel Code, Section XI (EPID L2020-LLR-0117 ML20232A1712020-09-0101 September 2020 Request to Use Alternative Code Case OMN-26 ML20160A4592020-08-0707 August 2020 Issuance of Amendment Nos. 248 and 210 Revise Technical Specifications to Support Implementation of 10 CFR 50.69 ML20141L6362020-07-10010 July 2020 Issuance of Amendments Based on TSTF-427,Allowance for Nontechnical Specification Barrier Degradation on Supported System Operability,Rev 2 ML20134H9402020-07-0808 July 2020 Issuance of Amendments Revising the High Radiation Area Administrative Controls ML20090B4102020-06-0202 June 2020 Issuance of Relief Request GVRR-9 Associated with Pandemic-Related Issues - Inservice Testing Interval Extension for Motor Operated Valves (EPID L-2020-LLR-0046 (COVID-19)) ML20113F0412020-04-30030 April 2020 Proposed Alternative to the Submittal Schedule for Certain Reports (COVID-19) ML20089A0012020-04-20020 April 2020 Issuance of Relief Request I4R-23 Associated with Pandemic-Related Issues - Examination of Containment Surfaces Requiring Augmented Examination (Category E-C) (EPID L-2020-LLR-0044 (COVID-19)) ML20098C9222020-04-0909 April 2020 Issuance of Amendment No. 245 Regarding Technical Specifications Change to Allow a One-Time Increase in Main Steam Isolation Valve Allowable Leakage Rate (EPID L-2020-LLA-0064) (Emergency Circumstances) ML20021A0702020-04-0606 April 2020 Issuance of Amendments to Delete License Conditions for Decommissioning Trusts ML20034F6372020-02-28028 February 2020 Issuance of Amendment Nos. 240 and 203 to Implement TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4B ML19331A7252020-02-14014 February 2020 Issuance of Amendments Revising Emergency Action Levels ML20028E3992020-02-0404 February 2020 Proposed Alternative to Use ASME Code Case N-879 ML19207A0062019-10-0303 October 2019 Issuance of Amendment Nos. 237 and 200 Revise Technical Specifications to Allow Penetration Flow Path Isolation for Inoperable Isolation Actuation Instrumentation ML19269C5342019-09-27027 September 2019 Proposed Alternative to Use Encoded Phased Array Ultrasonic Examination Techniques ML19176A0332019-08-28028 August 2019 Issuance of Amendments to Adopt TSTF-564, Safety Limit MCPR ML19192A2442019-07-18018 July 2019 Proposed Alternative to Use ASME Code Cases N-878 and N-880 ML19078A0182019-05-24024 May 2019 Issuance of Amendment Nos. 235, 198, 14, 325, and 328 to Revise the Emergency Response Organization Staffing Requirements ML19098A0342019-04-30030 April 2019 Units 1 and 2; Limerick, Units 1 and 2; Peach Bottom, Units 2 and 3, and Quad Cities, Units 1 and 2 - Revision to Approved Alternative to Use BWR Vessel and Internal Proj Guidelins ML19099A2632019-04-22022 April 2019 Issuance of Relief Request 14R-08, Revision 1, Regarding Pressure Testing of Containment Atmospheric Control Penetration Piping ML19099A3072019-04-16016 April 2019 Issuance of Relief Request 14R-18 Associated with Inaccessible Supports for the Fourth 10-Year Inservice Inspection Interval Pipping ML19009A0022019-03-0505 March 2019 Issuance of Relief Request IR4-17, Revision 1, Reactor Pressure Vessel Nozzle Repair in Lieu of Specific ASME Code Requirements 2023-05-17
[Table view] Category:Technical Specifications
MONTHYEARML23321A2362023-12-14014 December 2023 Issuance of Amendment Nos. 262 and 224 Adoption of TSTF-477, Revision 3 and Associated Technical Specification Changes ML23089A1242023-05-17017 May 2023 Issuance of Amd Nos. 261 & 223 Alternate Seismic Approach for Risk-Informed Categorization and Treatment of Structures, Systems a Components for NPR and Denial Proposed Alternative Defense in Depth and Pressure Boundary Component ML22272A0372023-01-0303 January 2023 Issuance of Amendment Nos. 258 and 220 Regarding Technical Specifications 3/4.8.1, AC Sources-Operating and 3/4.5.1, ECCS-Operating ML22090A0862022-04-29029 April 2022 Amendments to Adopt TSTF-541,Rev.2,Add Exceptions to Surveillance Requirements for Valves,Dampers Locked in Actuated Position RS-22-049, Constellation Energy Generation, LLC, Supplemental Information to Correct Typographical Errors in Constellation'S Application to Revise Technical Specifications to Adopt TSTF-541 Revision 2, Add Exceptions to Surveillance Requirements for2022-04-0404 April 2022 Constellation Energy Generation, LLC, Supplemental Information to Correct Typographical Errors in Constellation'S Application to Revise Technical Specifications to Adopt TSTF-541 Revision 2, Add Exceptions to Surveillance Requirements for V ML21347A0382022-01-13013 January 2022 Issuance of Amendments to Revise Reactor Coolant Leakage Requirements ML21181A0442021-09-28028 September 2021 Issuance of Amendment Nos. 253 and 215 Technical Specification Changes Related to Relocation of Pressure and Temperature Limit Curves to the Pressure and Temperature Limits Report JAFP-21-0089, Application to Revise Technical Specifications to Adopt TSTF-541 Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position2021-09-27027 September 2021 Application to Revise Technical Specifications to Adopt TSTF-541 Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position ML21032A2702021-02-22022 February 2021 Issuance of Amendment Nos. 252 and 214, Revise Technical Specifications to Adopt Technical Specifications Task Force Traveler TSTF-582, Revision 0, RPV WIC Enhancements ML21013A0052021-02-0404 February 2021 Issuance of Amendments to Adopt Technical Specifications Task Traveler TSTF-568, Revise Applicability of BWR/4 TS 3.6.2.5 and TS 3.6.3.2 ML20239A7252020-11-30030 November 2020 Issuance of Amendment Nos. 249 and 211 Adopt TSTF-484, Revision 0, Use of TS 3.10.1 for Scram Time Testing Activities ML20178A5142020-06-26026 June 2020 TS Change and Relief Requests Related to Safety Relief Valve Testing - Response to Request for Additional Information ML20034F6372020-02-28028 February 2020 Issuance of Amendment Nos. 240 and 203 to Implement TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4B ML19207A0062019-10-0303 October 2019 Issuance of Amendment Nos. 237 and 200 Revise Technical Specifications to Allow Penetration Flow Path Isolation for Inoperable Isolation Actuation Instrumentation ML19078A0182019-05-24024 May 2019 Issuance of Amendment Nos. 235, 198, 14, 325, and 328 to Revise the Emergency Response Organization Staffing Requirements ML19029B2492019-02-12012 February 2019 Correction to Amendment No. 195 Revising Technical Specifications to Lower the Minimum Standby Liquid Control System Pump Flowrate ML19030A1472019-01-30030 January 2019 Supplemental Information Needed for Acceptance of Requested Licensing Action to Adopt Risk-Informed Completion Times in Accordance with TSTF-505, Revision 2 RS-18-020, Application to Revise Technical Specifications to Modify the APRM Channel Adjustment Surveillance Requirement2018-06-15015 June 2018 Application to Revise Technical Specifications to Modify the APRM Channel Adjustment Surveillance Requirement ML18017A2012018-02-27027 February 2018 Issuance of Amendment Nos. 227 and 190 Revising Technical Specifications to Adopt TSTF-542, Revision 2, Reactor Pressure Vessel Water Inventory Control (CAC Nos. MF9967 and MF9968; EPID L-2017-LLA-0260) ML17200D0962017-07-19019 July 2017 Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control, Rev. 2. ML17103A0812017-05-16016 May 2017 Issuance of Amendments to Adopt Technical Specifications Task Force (TSTF) Traveler TSTF-545 ML16335A0382016-12-29029 December 2016 Issuance of Amendments to Revise Technical Specification Snubber Requirements ML16041A0212016-03-15015 March 2016 Issuance of Amendment Safety Limit Minimum Critical Power Ratio Change ML15356A1402016-01-28028 January 2016 Issuance of Amendments Secondary Containment Access Openings ML15218A5012015-09-15015 September 2015 Issuance of Amendment Nos. 219 and 181 Proposed Change to Add New Limiting Conditions for Operation 3.0.5 and 3.0.6 ML15141A0582015-07-28028 July 2015 Issuance of Amendments Regarding Emergency Action Level Schemes (TAC Nos. MF4232-MF4251) ML15083A4032015-05-11011 May 2015 Issuance of Amendments Adoption of Technical Specification Task Force (TSTF) Traveler TSTF-523, Generic Letter 2008-01, Managing Gas Accumulation ML14344A6812015-01-0707 January 2015 Issuance of Amendments - Main Steam Line Flow-High Isolation Response Time ML14324A8082014-12-29029 December 2014 Issuance of Amendments - Leak Detection System Setpoint and Allowable Value Changes ML14308A1442014-11-0303 November 2014 License Amendment Request Proposed Change to Add New Limiting Conditions for Operations 3.0.5 and 3.0.6 ML0527800342014-10-20020 October 2014 Current Facility Operating License NPF-39, Technical Specifications, Revised 08/15/2018 ML14191B1802014-07-10010 July 2014 Application to Revise Technical Specifications to Adopt TSTF-523, Generic Letter 2008-01, Managing Gas Accumulation, Using the Consolidated Line Item Improvement Process ML13214A0922014-03-26026 March 2014 Issuance of Amendments Elimination of Certain Technical Specifications Reporting Requirements ML13100A0202013-04-0909 April 2013 License Amendment Request to Eliminate Certain Technical Specifications Reporting Requirements ML1131802382011-11-10010 November 2011 Response to Request for Additional Information Concerning the License, Amendment Request Associated with the Reactivity Anomalies Surveillance ML1128700802011-10-12012 October 2011 License Amendment Request - Safety Limit Minimum Critical Power Ratio Change ML1117100072011-06-14014 June 2011 License Amendment Request to Include an Alternate Method of Verifying Drywell Unidentified Leakage ML1115401202011-06-0202 June 2011 License Amendment Request - Reactivity Anomalies Surveillance ML1109700662011-04-0606 April 2011 License Amendment Request to Revise Operability Requirements and Actions for RCS Leakage Instrumentation ML1035001802010-12-15015 December 2010 License Amendment Request - Safety Limit Minimum Critical Power Ratio Change ML1030603792010-10-29029 October 2010 Response to Request for Additional Information, License Amendment Request, Proposed Technical Specification Allowed Outage Time Extensions to Support Residual Heat Removal Service Water Maintenance ML1024304662010-08-31031 August 2010 License Amendment Request, Proposed Administrative Changes to Technical Specifications ML1018104342010-06-30030 June 2010 License Amendment Request - Table 3.3.2-2, Item 4e, HPCI Equipment Room Delta Temperature High Isolation Trip Setpoint and Allowable Value Changes ML1008503952010-03-25025 March 2010 Markup of Proposed Operating License, Technical Specifications & Updated Final Safety Analysis Report Pages ML0912800592009-04-17017 April 2009 Changes to Technical Specifications Bases, Including Changes Through 04/09/2009 ML0824703052008-08-28028 August 2008 Technical Specifications, TSTF Change Traveler TSTF-479 & TSTF-497 ML0821207302008-08-27027 August 2008 Tech Spec Pages for Amendment 154 Increase in Emergency Diesel Generator Day Tank Minimum Fuel Volume ML0817802542008-08-0505 August 2008 Technical Specifications, Limerick Unit 1, Amendment 192, License NPF-39 ML0817802872008-08-0505 August 2008 Technical Specifications, Limerick Unit 2, Amendment 153, License NPF-85 ML0816305582008-06-11011 June 2008 Supplement to License Amendment Request Related to Proposed Changes to Emergency Diesel Generator Fuel Oil Requirements 2023-05-17
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Text
January 2, 2003 Mr. John L. Skolds, President and Chief Nuclear Officer Exelon Nuclear Exelon Generation Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA 19348
SUBJECT:
LIMERICK GENERATING STATION, UNITS 1 AND 2 - ISSUANCE OF AMENDMENT RE: PRESSURE/TEMPERATURE CURVES (TAC NOS.
MB5507 and MB5508)
Dear Mr. Skolds:
The Commission has issued the enclosed Amendment No. 163 to Facility Operating License No. NPF-39 and Amendment No. 125 to Facility Operating License No. NPF-85 for the Limerick Generating Station, Units 1 and 2. These amendments consist of changes to the Technical Specifications (TSs) in response to your application dated June 26, 2002, as supplemented September 12, 2002.
These amendments would extend the use of pressure-temperature limits in TS Figure 3.4.6.1-1 for both units to 32 effective full power years.
A copy of our safety evaluation is also enclosed. Notice of Issuance will be included in the Commissions biweekly Federal Register notice.
Sincerely,
/RA/
Scott P. Wall, Project Manager, Section 2 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-352 and 50-353
Enclosures:
- 1. Amendment No. 163 to License No. NPF-39
- 2. Amendment No. 125 to License No. NPF-85
- 3. Safety Evaluation cc w/encls: See next page
Limerick Generating Station, Units 1 & 2 cc:
Vice President, General Counsel and Chief-Division of Nuclear Safety Secretary PA Dept. of Environmental Resources Exelon Generation Company, LLC P.O. Box 8469 300 Exelon Way Harrisburg, PA 17105-8469 Kennett Square, PA 19348 Library Manager Licensing-Limerick and Peach U.S. Nuclear Regulatory Commission Bottom Region I Exelon Generation Company, LLC 475 Allendale Road Nuclear Group Headquarters King of Prussia, PA 19406 Correspondence Control P.O. Box 160 Dr. Judith Johnsrud Kennett Square, PA 19348 National Energy Committee Sierra Club Site Vice President 433 Orlando Avenue Limerick Generating Station State College, PA 16803 Exelon Generation Company, LLC P.O. Box 2300 Vice President, Licensing and Regulatory Sanatoga, PA 19464 Affairs Exelon Generation Company, LLC Plant Manager 4300 Winfield Road Limerick Generating Station Warrenville, IL 60555 Exelon Generation Company, LLC P.O. Box 2300 Director-Licensing Sanatoga, PA 19464 Mid-Atlantic Regional Operating Group Exelon Generation Company, LLC Regional Administrator, Region I Nuclear Group Headquarters U.S. Nuclear Regulatory Commission Correspondence Control 475 Allendale Road P. O. Box 160 King of Prussia, PA 19406 Kennett Square, PA 19348 Senior Resident Inspector Correspondence Control Desk U.S. Nuclear Regulatory Commission Exelon Generation Company, LLC Limerick Generating Station 200 Exelon Way, KSA 1-N-1 P.O. Box 596 Kennett Square, PA 19348 Pottstown, PA 19464 Chief Operating Officer Chairman Exelon Generation Company, LLC Board of Supervisors 4300 Winfield Road of Limerick Township Warrenville, IL 60555 646 West Ridge Pike Linfield, PA 19468 Senior Vice President, Nuclear Services Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
Limerick Generating Station, Units 1 & 2 cc:
Vice President, Mid-Atlantic Operations Support Exelon Generation Company, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA 19348 Senior Vice President Mid-Atlantic Regional Operating Group Exelon Generation Company, LLC 200 Exelon Way, KSA 3-N Kennett Square, PA 19348 Regulatory Assurance Manager Limerick Generating Station Exelon Generation Company, LLC P.O. Box 2300 Sanatoga, PA 19464
January 2, 2003 Mr. John L. Skolds, President and Chief Nuclear Officer Exelon Nuclear Exelon Generation Company, LLC 200 Exelon Way, KSA 3-E Kennett Square, PA 19348
SUBJECT:
LIMERICK GENERATING STATION, UNITS 1 AND 2 - ISSUANCE OF AMENDMENT RE: PRESSURE/TEMPERATURE CURVES (TAC NOS.
MB5507 and MB5508)
Dear Mr. Skolds:
The Commission has issued the enclosed Amendment No. 163 to Facility Operating License No. NPF-39 and Amendment No. 125 to Facility Operating License No. NPF-85 for the Limerick Generating Station, Units 1 and 2. These amendments consist of changes to the Technical Specifications (TSs) in response to your application dated June 26, 2002, as supplemented September 12, 2002.
These amendments would extend the use of pressure-temperature limits in TS Figure 3.4.6.1-1 for both units to 32 effective full power years.
A copy of our safety evaluation is also enclosed. Notice of Issuance will be included in the Commissions biweekly Federal Register notice.
Sincerely,
/RA/
Scott P. Wall, Project Manager, Section 2 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-352 and 50-353
Enclosures:
- 1. Amendment No. 163 to License No. NPF-39
- 2. Amendment No. 125 to License No. NPF-85
- 3. Safety Evaluation cc w/encls: See next page DISTRIBUTION:
PUBLIC PDI-2 R/F JClifford SWall RPulsifer RDennig BSmith, OGC ACRS GHill (4) LLois BPlatchek, RI MOBrien SCoffin FAkstulewicz MMitchell DOCUMENT NAME: C:\ORPCheckout\FileNET\ML030030022.wpd Accession Number: ML
- see previous concurrance OFFICE PDI-2/PM PDI-2/PM PDI-2/LA SXRB* EMCB* OGC* PDI-2/SC NAME RPulsifer SWall MOBrien FAkstulewicz SCoffin BSmith JClifford DATE 12/19/02 12/20/02 12/27/02 12/10/02 11/29/02 12/13/02 12/27/02 OFFICIAL RECORD COPY
EXELON GENERATION COMPANY, LLC DOCKET NO. 50-352 LIMERICK GENERATING STATION, UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 163 License No. NPF-39
- 1. The Nuclear Regulatory Commission (the Commission) has found that:
A. The application for amendment by Exelon Generation Company, LLC (the licensee) dated June 26, 2002, as supplemented September 12, 2002, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B. The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C. There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D. The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.
- 2. Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-39 is hereby amended to read as follows:
Technical Specifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No. 163, are hereby incorporated in the license. Exelon Generation Company shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
- 3. This license amendment is effective as of its date of issuance and shall be implemented within 30 days.
FOR THE NUCLEAR REGULATORY COMMISSION
/RA/
James W. Clifford, Chief, Section 2 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance: January 2, 2003
ATTACHMENT TO LICENSE AMENDMENT NO. 163 FACILITY OPERATING LICENSE NO. NPF-39 DOCKET NO. 50-352 Replace the following page of the Appendix A Technical Specifications with the attached revised page. The revised page is identified by amendment number and contains marginal lines indicating the areas of change.
Remove Insert 3/4 4-20 3/4 4-20
EXELON GENERATION COMPANY, LLC DOCKET NO. 50-353 LIMERICK GENERATING STATION, UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 125 License No. NPF-85
- 1. The Nuclear Regulatory Commission (the Commission) has found that:
A. The application for amendment by Exelon Generation Company, LLC (the licensee) dated June 26, 2002, as supplemented September 12, 2002, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and regulations set forth in 10 CFR Chapter I; B. The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C. There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commissions regulations; D. The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commissions regulations and all applicable requirements have been satisfied.
- 2. Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-85 is hereby amended to read as follows:
Technical Specifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No. 125, are hereby incorporated in the license. Exelon Generation Company shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
- 3. The license amendment is effective as of its date of issuance and shall be implemented within 30 days.
FOR THE NUCLEAR REGULATORY COMMISSION
/RA/
James W. Clifford, Chief, Section 2 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance: January 2, 2003
ATTACHMENT TO LICENSE AMENDMENT NO. 125 FACILITY OPERATING LICENSE NO. NPF-85 DOCKET NO. 50-353 Replace the following page of the Appendix A Technical Specifications with the attached revised page. The revised page is identified by amendment number and contains marginal lines indicating the areas of change.
Remove Insert 3/4 4-20 3/4 4-20
SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NOS. 163 AND 125 TO FACILITY OPERATING LICENSE NOS. NPF-39 AND NPF-85 EXELON GENERATION COMPANY, LLC LIMERICK GENERATING STATION, UNITS 1 AND 2 DOCKET NOS. 50-352 AND 50-353
1.0 INTRODUCTION
By application dated June 26, 2002 (Reference 1), as supplemented September 12, 2002 (Reference 2), Exelon Generation Company, LLC (the licensee), requested changes to the Technical Specifications (TSs) for Limerick Generating Station (Limerick), Units 1 and 2. The supplement dated September 12, 2002, provided additional information that clarified the application, did not expand the scope of the application as originally noticed, and did not change the staffs original proposed no significant hazards consideration determination as published in the Federal Register on August 6, 2002 (67 FR 50953).
The proposed changes would extend the use of the pressure-temperature (P-T) limits in TS Figure 3.4.6.1-1 to 32 effective full power years (EFPY).
2.0 BACKGROUND
The Nuclear Regulatory Commission (NRC) staff has previously reviewed the P-T limit curves contained in Limerick Unit 1 TS Figure 3.4.6.1-1 and Limerick Unit 2 TS Figure 3.4.6.1-1. The staffs prior reviews concluded that the Limerick Unit 1 and Unit 2 P-T limit curves were acceptable for 32 EFPY of operation under the assumption that the neutron fluence (E > 1.0 MeV) at the 1/4 thickness (1/4T) depth (i.e., the throughwall location one-quarter of the way from the inside surface to the outside surface of the reactor pressure vessel (RPV)) for the units limiting RPV materials would be 1.3 x 1018 n/cm2 (neutrons/centimeter) at 32 EFPY.
However, during the staffs subsequent reviews, the adequacy of the methodology used by the licensee to determine the RPV neutron fluences was questioned and, as a result, the period of validity of the existing P-T limit curves was restricted to the end of operating cycle 10 for Limerick Unit 1 and the end of operating cycle 7 for Limerick Unit 2. It was understood that the licensee would perform updated RPV fluence calculations utilizing an NRC staff approved methodology which is consistent with the guidance in Regulatory Guide (RG) 1.190, Calculational and Dosimetry Methods for Determining Pressure Vessel Neutron Fluence, (Reference 4) prior to the time when the restricted P-T limit curves would become invalid. Any necessary changes to the P-T limit curves would be made in order to support continued operation of the units based on the results of the licensees updated neutron fluence calculations.
3.0 REGULATORY EVALUATION
The regulatory requirements for fluence calculations are in General Design Criteria (GDC) 30 and 31 (Reference 3). The staff issued RG 1.190 in March 2001, which provided state-of-the-art calculations and measurement procedures that are acceptable to the NRC staff for determining pressure vessel fluence. The staff has approved vessel fluence calculation methodologies which satisfy the requirements of GDC 30 and 31 and are done with approved methodologies or with methods which are shown to adhere to the guidance in RG 1.190.
4.0 TECHNICAL EVALUATION
4.1 Fluence Calculational Methodology and Fluence Values In the June 26, 2002, license amendment request, the licensee submitted the results of their updated RPV neutron fluence calculations. The pressure vessel fluences were recalculated using the staff-approved method described in NEDC-32983P-A (Reference 5). The staffs review found that the method has been applied correctly. The calculated values are acceptable because they were calculated using an approved method which was applied correctly.
The original peak pressure vessel inside surface fluence was calculated to be 1.7x1018 n/cm2.
This was subsequently increased by 10% (for future power uprates) and was assumed to apply from the reactor startup rather than from the actual power uprate. In addition, the present uprate is only 5%. The 10% increase and its application from the beginning of power operation give the 32 EFPY value of the vessel fluence a significant margin of conservatism. The final fluence value for 32 EFPY used for the calculation of the P-T curves was 1.9x1018 n/cm2 or 1.3x1018 n/cm2 at the 1/4T vessel thickness. The recalculated fluence value at 1/4T is 0.89x1018 n/cm2, which gives the current P-T curves a significant margin of conservatism.
4.2 Limerick Unit 1 On January 30, 2002, the staff issued Amendment No. 155 (Reference 7), which limited the validity of the P-T curves to the end of cycle 10, estimated to occur in April 2004. Because the recalculated fluence is bounded by the fluence value used in the calculation of the present curves, extension of the validity of the P-T curves to 32 EFPY is acceptable.
4.3 Limerick Unit 2 On March 23, 2001, the staff issued Amendment No. 111 (Reference 6), which limited the validity of the P-T curves to the end of cycle 7, estimated to occur in April 2003. Because the recalculated fluence is bounded by the fluence value used in the calculation of the present curves, extension of the validity of the P-T curves to 32 EFPY is acceptable.
4.4 TS Changes The proposed TS change would eliminate a note in Figure 3.4.6.1-1 from the TSs of both units.
The note limited the applicability of the P-T curves to cycles 10 and 7 for Units 1 and 2,
respectively. The original curves for 32 EFPY, as indicated in TS Figure 3.4.6.1-1 for both units, were conservatively estimated and the removal of the note is acceptable.
5.0
SUMMARY
The staff has reviewed the Exelon submittal for Limerick Units 1 and 2 of June 26, 2002, as supplemented on September 12, 2002, with respect to the revised pressure vessel fluence values and the associated changes in the P-T curves. The staff finds that the proposed fluence values are acceptable because they were derived using staff-approved methodologies which satisfy the applicable regulatory requirements in GDC 30 and 31. In addition, the recalculated fluence bound the values used to derive the current P-T curves.
Therefore, the staff finds the P-T curves valid for 32 EFPY and the removal of the note from Figure 3.4.6.1-1 acceptable.
6.0 STATE CONSULTATION
In accordance with the Commissions regulations, the Pennsylvania State official was notified of the proposed issuance of the amendments. The State official had no comments.
7.0 ENVIRONMENTAL CONSIDERATION
The amendments change a requirement with respect to installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20. The NRC staff has determined that the amendments involve no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure. The Commission has previously issued a proposed finding that the amendments involve no significant hazards consideration, and there has been no public comment on such finding (67 FR 50953). Accordingly, the amendments meet the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b) no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendments.
8.0 CONCLUSION
The Commission has concluded, based on the considerations discussed above, that: (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commissions regulations, and (3) the issuance of the amendments will not be inimical to the common defense and security or to the health and safety of the public.
9.0 REFERENCES
- 1. Letter from M. P. Gallagher, Exelon Nuclear Corporation, to NRC, License Amendment Request LG 02-00391, Extended Use of Pressure-Temperature Limits Specified in Technical Specifications Figure 3.4.6.1-1, dated June 26, 2002.
- 2. Letter from M. P. Gallagher, Exelon Nuclear Corporation, to NRC, License Amendment Request LG 02-00391, Extended Use of Pressure-Temperature Limits Specified in Technical Specifications Figure 3.4.6.1 Supplemental Information, dated September 12, 2002.
- 3. Appendix A to 10 CFR Part 50, General Design Criterion 30, Quality of Reactor Coolant Pressure Boundary, and General Design Criterion 31, Fracture Prevention of Reactor Coolant Pressure Boundary.
- 4. NRC Regulatory Guide 1.190, Calculational and Dosimetry Methods for Determining Pressure Vessel Neutron Fluence, March 2001.
- 5. Letter from J. F. Klapproth, GE, to Document Control Desk, NRC, Submittal of GE Proprietary Document NEDC-32983P-A, Revision 1, General Electric Methodology for Reactor Pressure Vessel Fast Neutron Flux Evaluation, dated December 2001.
- 6. Letter from C. Gratton, NRC, to J. A. Hutton, Exelon, Limerick Generating Station, Unit 2 - Issuance of Amendment - Re: Update the Pressure-Temperature Limit Curves for Limerick Generating Station (TAC No. MB0590), dated March 23, 2001.
- 7. Letter from C. Gratton, NRC, to O. D. Kingsley, Exelon, Limerick Generating Station, Unit 1 - Issuance of Amendment - Re: Extended Use of the Facility Pressure-Temperature Limits and Request to Modify the Reactor Vessel Surveillance Capsule Withdrawal Schedule (TAC No. MB2933), dated January 30, 2002.
Principal Contributors: Lambros Lois Matthew Mitchell Date: January 2, 2003