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| {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION ADVISORY COMMITTEE ON REACTOR SAFEGUARDS WASHINGTON, DC 20555 - 0001 | | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION ADVISORY COMMITTEE ON REACTOR SAFEGUARDS WASHINGTON, DC 20555 - 0001 July 18, 2016 The Honorable Stephen G. Burns Chairman U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 |
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| July 18, 2016 | |
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| The Honorable Stephen G. Burns Chairman U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 | |
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| ==SUBJECT:== | | ==SUBJECT:== |
| REPORT ON THE SAFETY ASPECTS OF THE LICENSE RENEWAL APPLICATION OF THE LASALLE COUNTY STATION, UNITS 1 AND 2 | | REPORT ON THE SAFETY ASPECTS OF THE LICENSE RENEWAL APPLICATION OF THE LASALLE COUNTY STATION, UNITS 1 AND 2 |
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| ==Dear Chairman Burns:== | | ==Dear Chairman Burns:== |
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| During the 635 th meeting of the Advisory Committee on Reactor Safeguards (ACRS), July 6 - 8, 2016, we completed our review of the license renewal application for the LaSalle County Station, Units 1 and 2 (LaSalle) and the final safety evaluation report (SER) prepared by the NRC staff. Our Subcommittee on Plant License Renewal reviewed this matter during a meeting on April 19, 2016. During these reviews, we had the benefit of discussions with representatives of the NRC staff and the Exelon Generation Company, LLC (Exelon or the applicant). We also had the benefit of the referenced documents. This report fulfills the requirement of 10 CFR 54.25 that the ACRS review and report on all license renewal applications. | | During the 635th meeting of the Advisory Committee on Reactor Safeguards (ACRS), July 6 - 8, 2016, we completed our review of the license renewal application for the LaSalle County Station, Units 1 and 2 (LaSalle) and the final safety evaluation report (SER) prepared by the NRC staff. Our Subcommittee on Plant License Renewal reviewed this matter during a meeting on April 19, 2016. During these reviews, we had the benefit of discussions with representatives of the NRC staff and the Exelon Generation Company, LLC (Exelon or the applicant). We also had the benefit of the referenced documents. This report fulfills the requirement of 10 CFR 54.25 that the ACRS review and report on all license renewal applications. |
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| CONCLUSION AND RECOMMENDATION | | CONCLUSION AND RECOMMENDATION |
| : 1. The programs established and committed to by Exelon to manage age-related degradation provide reasonable assurance that LaSalle can be operated in accordance with its current licensing bases for the period of extended operation without undue risk to the health and safety of the public. | | : 1. The programs established and committed to by Exelon to manage age-related degradation provide reasonable assurance that LaSalle can be operated in accordance with its current licensing bases for the period of extended operation without undue risk to the health and safety of the public. |
| : 2. Exelon's application for renewal of the operating licenses for LaSalle should be approved. | | : 2. Exelons application for renewal of the operating licenses for LaSalle should be approved. |
| | | BACKGROUND LaSalle is located approximately 55 miles southwest of Chicago, Illinois. Units 1 and 2 are of a boiling water reactor (BWR) Type 5 (BWR/5) design. Each primary containment is a Mark II type, safety-related seismic Category I structure consisting of a steel dome head and post-tensioned concrete wall standing on a base mat of conventionally reinforced concrete. General Electric provided the nuclear steam supply system, and Sargent & Lundy designed and constructed the balance of the plant. Each unit has a licensed power output of 3,546 megawatts thermal, with a gross electrical output of approximately 1,207 megawatts. The NRC issued the construction permits (CPRR-99 and CPRR-100, respectively) for Units 1 and 2 on September 7, 1973. The NRC issued the operating licenses for Unit 1 and Unit 2 on April 17, 1982, and December 16, 1983, respectively. |
| BACKGROUND | |
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| LaSalle is located approximately 55 miles southwest of Chicago, Illinois. Units 1 and 2 are of a boiling water reactor (BWR) Type 5 (BWR/5) design. Each primary containment is a Mark II type, safety-related seismic Category I structure consisting of a steel dome head and post-tensioned concrete wall standing on a base mat of conventionally reinforced concrete. General Electric provided the nuclear steam supply system, and Sargent & Lundy designed and constructed the balance of the plant. Each unit has a licensed power output of 3,546 | |
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| megawatts thermal, with a gross electrical output of approximately 1,207 megawatts. The NRC issued the construction permits (CPRR-99 and CPRR-100, respectively) for Units 1 and 2 on September 7, 1973. The NRC issued the operating licenses for Unit 1 and Unit 2 on April 17, 1982, and December 16, 1983, respectively. | |
| 2 In this application, Exelon requests renewal of the operating licenses (Facility Operating License Nos. NPF-11 and NPF-18) for a period of 20 years beyond the current expiration date of April 17, 2022, for Unit 1, and December 16, 2023, for Unit 2.
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| DISCUSSION
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| In its final SER, dated June 2016, the staff documented its review of the license renewal application and other information submitted by the applicant and obtained through staff audits and inspections at the plant sites. The staff reviewed the completeness of the identification of structures, systems, and components (SSCs) that are within the scope of license renewal; the integrated plant assessment process; the identification of plausible aging mechanisms associated with passive, long-lived components; the adequacy of the Aging Management Programs (AMPs); and identification and assessment of Time-Limited Aging Analyses (TLAAs) | | 2 In this application, Exelon requests renewal of the operating licenses (Facility Operating License Nos. NPF-11 and NPF-18) for a period of 20 years beyond the current expiration date of April 17, 2022, for Unit 1, and December 16, 2023, for Unit 2. |
| | DISCUSSION In its final SER, dated June 2016, the staff documented its review of the license renewal application and other information submitted by the applicant and obtained through staff audits and inspections at the plant sites. The staff reviewed the completeness of the identification of structures, systems, and components (SSCs) that are within the scope of license renewal; the integrated plant assessment process; the identification of plausible aging mechanisms associated with passive, long-lived components; the adequacy of the Aging Management Programs (AMPs); and identification and assessment of Time-Limited Aging Analyses (TLAAs) requiring review. |
| | Exelons LaSalle license renewal application identified the SSCs that fall within the scope of license renewal. The application is largely consistent with the Generic Aging Lessons Learned (GALL) Report (NUREG-1801). Deviations and exceptions are documented and justified. |
| | Exelon will implement 46 AMPs for license renewal, comprised of 35 existing programs and 11 new programs. Nineteen of the 46 AMPs are consistent with the GALL Report without enhancements or exceptions. Nineteen AMPs are consistent with enhancements. Three AMPs are consistent with exceptions. Three AMPs are consistent with enhancements and exceptions. |
| | Two AMPs, Service Level III and Service Level III Augmented Coatings Monitoring and Maintenance Program, and Unit 2 Inspection of The American Society of Mechanical Engineers (ASME) Code Class 1 Small-Bore Piping Program, are plant-specific. |
| | The license renewal application includes six programs with exceptions to the GALL Report. We reviewed these programs (Flow-Accelerated Corrosion, Reactor Vessel Surveillance, Compressed Air Monitoring, Fire Water System, Reactor Head Closure Stud Bolting, and Water Chemistry). We conclude that the six GALL programs with exceptions are acceptable. |
| | The staff conducted license renewal audits and performed license renewal inspections at LaSalle. The audits verified the adequacy of the scoping and screening methodology for AMPs, the appropriateness of the aging management review, and the acceptability of the TLAAs. The inspection verified that the license renewal requirements are implemented appropriately. Both the inspection, and the report of that inspection, are thorough. Based on the audits, the inspection, and the staff reviews related to this license renewal application, the staff concluded in the final SER that the proposed activities will manage the effects of aging of SSCs identified in the application and that the intended functions of these SSCs will be maintained during the period of extended operation. The staff concluded that Exelon has demonstrated that the effects of aging at LaSalle will be adequately managed so that the intended function(s) will be maintained consistent with the current licensing basis for the period of extended operation, as required by 10 CFR 54.21(a)(3). |
| | Two open items were resolved between our subcommittee meeting on April 19, 2016, and our final review on July 6, 2016. The open items pertained to 1) enhanced visual testing examination coverage and 2) limited volumetric examination coverage. Resolution of the open items is as follows. |
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| requiring review.
| | 3 EVT-1 Examination Coverage - BWR Vessel ID Attachment Welds Aging Management Program This item addresses changes to the BWR Vessel Internals Program (BWRVIP) guidance for EVT-1 viewing angle limitation that reduced effective examination coverage. Coverage requirements were not specified. The staffs concern was the programs ability to credit EVT-1s with 0% coverage; therefore, the staff raised the question of program adequacy. Exelon provided information to the NRC on February 25, 2016, in response to Request for Additional Information B.2.1.4-1 that 1) revised the procedure to eliminate the possibility that EVT-1 weld exam coverage of 0% could be acceptable and 2) communicated that visual inspections are performed of entire accessible Vessel ID attachment welds by a certified nondestructive examination examiner. EVT-1 examination coverage is maximized, consistent with BWRVIP A and BWRVIP-03 guidance. |
| Exelon's LaSalle license renewal application identified the SSCs that fall within the scope of license renewal. The application is largely consistent with the Generic Aging Lessons Learned (GALL) Report (NUREG-1801). Deviations and exceptions are documented and justified.
| | Limited Volumetric Exam Coverage - BWR Stress Corrosion Cracking Aging Management Program This item addresses examination coverage for augmented weld inspections. The staff was concerned that program effectiveness could not be assured without documented bases for crediting limited weld inspections. Exelon provided information to the NRC on February 25, 2016, stating that 90% examination coverage is considered the minimum acceptable examination coverage, without evaluation, during the period of extended operation. If examination coverage is less than 90%, procedures require action to maximize the extent of examination coverage. In addition, if the examinations with less than 90% coverage are required to meet ASME Code Section XI requirements, a relief request is required. Exelon changed procedures for examinations that are required to meet the AMP, but not to meet ASME code requirements. The new procedures require an engineering technical evaluation equivalent to a relief request. |
| Exelon will implement 46 AMPs for license renewal, comprised of 35 existing programs and 11 new programs. Nineteen of the 46 AMPs are consistent with the GALL Report without enhancements or exceptions. Nineteen AMPs are consistent with enhancements. Three AMPs are consistent with exceptions. Three AMPs are consistent with enhancements and exceptions. Two AMPs, Service Level III and Service Level III Augmented Coatings Monitoring and Maintenance Program, and Unit 2 Inspection of The American Society of Mechanical Engineers (ASME) Code Class 1 Small-Bore Piping Program, are plant-specific. The license renewal application includes six programs with exceptions to the GALL Report. We reviewed these programs (Flow-Accelerated Corrosion, Reactor Vessel Surveillance, Compressed Air Monitoring, Fire Water System, Reactor Head Closure Stud Bolting, and Water Chemistry). We conclude that the six GALL programs with exceptions are acceptable. The staff conducted license renewal audits and performed license renewal inspections at LaSalle. The audits verified the adequacy of the scoping and screening methodology for AMPs, the appropriateness of the aging management review, and the acceptability of the TLAAs. The inspection verified that the license renewal requirements are implemented appropriately. Both the inspection, and the report of that inspection, are thorough. Based on the audits, the inspection, and the staff reviews related to this license renewal application, the staff concluded in the final SER that the proposed activities will manage the effects of aging of SSCs identified in the application and that the intended functions of these SSCs will be maintained during the period of extended operation. The staff concluded that Exelon has demonstrated that the effects of aging at LaSalle will be adequately managed so that the intended function(s) will be maintained consistent with the current licensing basis for the period of extended operation, as required by 10 CFR 54.21(a)(3). | | We agree with the staff that there are no issues related to the matters described in 10 CFR 54.29(a) (1) and (a) (2) that preclude renewal of the operating licenses for LaSalle. The programs established and committed to by Exelon provide reasonable assurance that LaSalle can be operated in accordance with its current licensing basis for the period of extended operation without undue risk to the health and safety of the public. The Exelon application for renewal of the operating licenses for LaSalle, Units 1 and 2 should be approved. |
| | Sincerely, |
| | /RA/ |
| | Dennis C. Bley Chairman |
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| Two open items were resolved between our subcommittee meeting on April 19, 2016, and our final review on July 6, 2016. The open items pertained to 1) enhanced visual testing examination coverage and 2) limited volumetric examination coverage. Resolution of the open items is as follows.
| | 3 REFERENCES |
| | | : 1. Exelon Generation Company, LLC, LaSalle County Station, Units 1 and 2, Application for Renewed Operating Licenses, December 9, 2014 (ML14343A840). |
| 3 EVT-1 Examination Coverage - BWR Vessel ID Attachment Welds Aging Management Program This item addresses changes to the BWR Vessel Internals Program (BWRVIP) guidance for EVT-1 viewing angle limitation that reduced effective examination coverage. Coverage requirements were not specified. The staff's concern was the program's ability to credit EVT-1s with 0% coverage; therefore, the staff raised the question of program adequacy. Exelon provided information to the NRC on February 25, 2016, in response to Request for Additional Information B.2.1.4-1 that 1) revised the procedure to eliminate the possibility that EVT-1 weld exam coverage of 0% could be acceptable and 2) communicated that visual inspections are performed of entire accessible Vessel ID attachment welds by a certified nondestructive examination examiner. EVT-1 examination cover age is maximized, consistent with BWRVIP-48-A and BWRVIP-03 guidance.
| | : 2. U.S. Nuclear Regulatory Commission, Safety Evaluation Report Related to the License Renewal of LaSalle County Station, Units 1 and 2, June 2016 (ML16126A503). |
| | | : 3. U.S. Nuclear Regulatory Commission, Safety Evaluation Report with Open items Related to the License Renewal of LaSalle County Station, Units 1 and 2, February 2016 (ML16053A439). |
| Limited Volumetric Exam Coverage - BWR Stress Corrosion Cracking Aging Management Program This item addresses examination coverage for augmented weld inspections. The staff was concerned that program effectiveness could not be assured without documented bases for crediting limited weld inspections. Exelon provided information to the NRC on February 25, 2016, stating that 90% examination coverage is considered the minimum acceptable examination coverage, without evaluation, during the period of extended operation. If examination coverage is less than 90%, procedures require action to maximize the extent of examination coverage. In addition, if the examinations with less than 90% coverage are required to meet ASME Code Section XI requirements, a relief request is required. Exelon changed procedures for examinations that are required to meet the AMP, but not to meet ASME code requirements. The new procedures require an engineering technical evaluation equivalent to a
| | : 4. U.S. Nuclear Regulatory Commission, NUREG 1801, Generic Aging Lessons Learned (GALL) Report, Revision 2, December 2010 (ML103490041). |
| | | : 5. U.S. Nuclear Regulatory Commission, Aging Management Programs Audit Report Regarding LaSalle County Station, Units 1 and 2 (TAC NOS. MF5347 and MF5346), |
| relief request.
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| We agree with the staff that there are no issues related to the matters described in 10 CFR 54.29(a) (1) and (a) (2) that preclude renewal of the operating licenses for LaSalle. The programs established and committed to by Exelon provide reasonable assurance that LaSalle can be operated in accordance with its current licensing basis for the period of extended operation without undue risk to the health and safety of the public. The Exelon application for renewal of the operating licenses for LaSalle, Units 1 and 2 should be approved.
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| Sincerely,
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| /RA/
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| Dennis C. Bley Chairman 3 REFERENCES
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| : 1. Exelon Generation Company, LLC, LaSalle County Station, Units 1 and 2, "Application for Renewed Operating Licenses," December 9, 2014 (ML14343A840). | |
| : 2. U.S. Nuclear Regulatory Commission, "Safety Evaluation Report Related to the License Renewal of LaSalle County Station, Units 1 and 2," June 2016 (ML16126A503). | |
| : 3. U.S. Nuclear Regulatory Commission, "Safety Evaluation Report with Open items Related to the License Renewal of LaSalle County Station, Units 1 and 2," February | |
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| 2016 (ML16053A439). | |
| : 4. U.S. Nuclear Regulatory Commission, NUREG 1801, "Generic Aging Lessons Learned (GALL) Report," Revision 2, December 2010 (ML103490041). | |
| : 5. U.S. Nuclear Regulatory Commission , "Aging Management Programs Audit Report Regarding LaSalle County Station, Units 1 and 2 (TAC NOS. MF5347 and MF5346)," | |
| September 22, 2015 (ML15196A115). | | September 22, 2015 (ML15196A115). |
| : 6. U.S. Nuclear Regulatory Commission, "Scoping and Screening Methodology Audit Report Regarding LaSalle County Station, Units 1 and 2 (TAC NOS. MF5347 and MF5346)," May 8, 2015 (ML15104A782). | | : 6. U.S. Nuclear Regulatory Commission, Scoping and Screening Methodology Audit Report Regarding LaSalle County Station, Units 1 and 2 (TAC NOS. MF5347 and MF5346), May 8, 2015 (ML15104A782). |
| : 7. U.S. Nuclear Regulatory Commission, "LaSalle County Station, Units 1 and 2 License Renewal Scoping, Screening, and Aging Management Inspection Report 05000373/2015008; 05000374/2015008," November 18, 2015 (ML15323A064). | | : 7. U.S. Nuclear Regulatory Commission, LaSalle County Station, Units 1 and 2 License Renewal Scoping, Screening, and Aging Management Inspection Report 05000373/2015008; 05000374/2015008, November 18, 2015 (ML15323A064). |
| : 8. U.S. Nuclear Regulatory Commission, NUREG-1800, "Standard Review Plan for Review of License Renewal Applications for Nuclear Power Plants," Revision 2, December 2010 (ML103490036). | | : 8. U.S. Nuclear Regulatory Commission, NUREG-1800, Standard Review Plan for Review of License Renewal Applications for Nuclear Power Plants, Revision 2, December 2010 (ML103490036). |
| : 9. U.S. Nuclear Regulatory Commission, Regulatory Guide 1.188, "Standard Format and Content for Applications to Renew Nuclear Power Plant Operating Licenses," Revision 1, September 2005 (ML082950585). | | : 9. U.S. Nuclear Regulatory Commission, Regulatory Guide 1.188, Standard Format and Content for Applications to Renew Nuclear Power Plant Operating Licenses, Revision 1, September 2005 (ML082950585). |
| Distribution: | | Distribution: |
| See next page Accession No:ML16200A156 Publicly Available (Y/N): | | See next page Accession No:ML16200A156 Publicly Available (Y/N): Y Sensitive (Y/N): N If Sensitive, which category? |
| Y Sensitive (Y/N): N If Sensitive, which category? | | Viewing Rights: NRC Users or ACRS only or See restricted distribution OFFICE ACRS SUNSI ACRS ACRS ACRS Review NAME KHoward KHoward MBanks AValentin DBley DATE 7/18/16 7/18/16 7/18/16 7/18/16 7/18/16 OFFICIAL RECORD COPY |
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| NRC Users or ACRS only or See restricted distribution OFFICE ACRS SUNSI Review ACRS ACRS ACRS NAME KHoward KHoward MBanks AValentin DBley DATE 7/18/16 7/18/16 7/18/16 7/18/16 7/18/16 OFFICIAL RECORD COPY 3 Letter to the Honorable Stephen G. Burns, Chairman, NRC, from Dennis C. Bley, Chairman, ACRS, dated July 18, 2016 | | 3 Letter to the Honorable Stephen G. Burns, Chairman, NRC, from Dennis C. Bley, Chairman, ACRS, dated July 18, 2016 |
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| ==SUBJECT:== | | ==SUBJECT:== |
| REPORT ON THE SAFETY ASPECTS OF THE LICENSE RENEWAL APPLICATION OF THE LASALLE COUNTY STATION, UNITS 1 AND 2 | | REPORT ON THE SAFETY ASPECTS OF THE LICENSE RENEWAL APPLICATION OF THE LASALLE COUNTY STATION, UNITS 1 AND 2 Distribution: |
| | | ACRS Staff ACRS Members ABates RidsSECYMailCenter RidsEDOMailCenter RidsNMSSOD RidsNSIROD RidsFSMEOD RidsRESOD RidsOIGMailCenter RidsOGCMailCenter RidsOCAAMailCenter RidsOCAMailCenter RidsNRROD RidsNROOD RidsOPAMail RidsRGN1MailCenter RidsRGN2MailCenter RidsRGN3MailCenter RidsRGN4MailCenter}} |
| Distribution: ACRS Staff ACRS Members ABates RidsSECYMailCenter RidsEDOMailCenter RidsNMSSOD RidsNSIROD RidsFSMEOD RidsRESOD | |
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Results
Other: ML15005A480, ML15089A353, ML15104A317, ML15106A392, ML15106A812, ML15132A674, ML15195A341, ML15195A342, ML16019A174, ML16200A156, ML16204A236, ML16224A786, ML16264A222, ML16299A103, RS-15-179, Hard Copies of Responses Sheets Plus Other Relevant Documents - Part 3 of 3, RS-15-230, Final, Impingement and Entrainment Characterization Study
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MONTHYEARML15005A4742015-01-0707 January 2015 Notice of Intent to Prepare an Environmental Impact Statement and Conduct Scoping Process for LaSalle County Station, Units 1 and 2 Project stage: Request ML15005A4802015-01-27027 January 2015 Notice of Intent to Prepare an Environmental Impact Statement and Conduct Scoping Process for LaSalle County, Units 1 and 2 Project stage: Other ML15104A3172015-02-0303 February 2015 Comment (2) of Adam Kinzinger on License Renewal Application of LaSalle County Generating Station Project stage: Other ML15062A3642015-03-0303 March 2015 Environmental Scoping Briefing for March 10th Meetings Project stage: Request ML15089A5802015-03-10010 March 2015 Transcript of Public Meeting Re License Renewal Application of LaSalle, Units 1 and 2, Evening Session, March 10, 2015, Pages 1-55 Project stage: Meeting ML15083A5382015-03-10010 March 2015 Transcript of Public Meeting Re License Renewal Application of LaSalle, Units 1 and 2, Afternoon Session, March 10, 2015, Pages 1-63 Project stage: Meeting ML15089A3532015-03-12012 March 2015 Comment (1) of Nelson Dewey on LaSalle License Renewal Application Environmental Review Project stage: Other ML15083A5462015-03-31031 March 2015 Requests for Additional Information for the Environmental Review of LaSalle County Station, Units 1 and 2, License Renewal Application (TAC Nos. MF5567 and MF5568) Project stage: RAI ML15091A3292015-04-0101 April 2015 March 10, 2015, Public Scoping Meetings for Environmental Review of LaSalle County Station (LSCS) Units 1 and 2, License Renewal Application Project stage: Meeting ML15106A8122015-04-24024 April 2015 04/07-08/2015 Summary of Severe Accidents Mitigation Alternatives Audit for LaSalle County Station, Units 1 and 2 (TAC Nos. MF5567 and MF5568) Project stage: Other ML15106A3922015-04-28028 April 2015 License Renewal Environmental Site Audit Regarding Lasalle County Station, Units 1 and 2, (TAC Nos. MF5567 and MF5568) Project stage: Other ML15114A1022015-04-30030 April 2015 Requests for Additional Information on the LaSalle County Station Units 1 and 2 (LSCS) Analysis of Severe Accident Mitigation Alternatives Project stage: RAI ML15114A3202015-04-30030 April 2015 Request for Additional Information on Severe Accident Mitigation Alternatives Regarding the LaSalle County Station, Units 1 and 2, License Renewal Application Environmental Review Project stage: RAI ML15105A3662015-05-0404 May 2015 Environmental Audit Needs List Project stage: Request ML15105A3812015-05-0404 May 2015 Environmental Audit Plan Project stage: Request ML15132A6742015-05-20020 May 2015 Summary of the License Renewal Environmental Audit for LaSalle County Station, Units 1 and 2 (TAC Nos. MF5567 and MF5568) Project stage: Other ML15135A5222015-05-22022 May 2015 Request for Additional Information Regarding the Lasalle County Station, Units 1 and 2, License Renewal Application Environmental Review (TAC Nos. MF5567 and MF5568) Project stage: RAI ML15139A5862015-05-22022 May 2015 Request for Additional Information Regarding the LaSalle County Station, Units 1 and 2, License Renewal Application Environmental Review Project stage: RAI ML15195A3472015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-04 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15195A3402015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review Project stage: Response to RAI ML15195A3412015-07-0202 July 2015 Index for Responses to NRC License Renewal Environmental Review Requests for Additional Information - Part 1 of 3 Project stage: Other ML15195A3422015-07-0202 July 2015 Index for Responses to NRC License Renewal Environmental Review Requests for Additional Information - Part 2 of 3 Project stage: Other RS-15-179, Hard Copies of Responses Sheets Plus Other Relevant Documents - Part 3 of 32015-07-0202 July 2015 Hard Copies of Responses Sheets Plus Other Relevant Documents - Part 3 of 3 Project stage: Other ML15195A3452015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-02 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15195A3462015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-03 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15195A3492015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-06 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15195A3522015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-08 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15195A3672015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, AQ-01 on Aquatic Ecology Project stage: Response to RAI ML15195A3502015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-07 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15195A3542015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-10 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15195A3532015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-09 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15195A3482015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-05 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15195A3442015-07-0202 July 2015 Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, MA-01 on Meteorology, Air Quality & Noise Project stage: Response to RAI ML15147A3802015-07-0202 July 2015 Issuance of Scoping Summary Report Associated with the LaSalle County Station, Units 1 and 2, License Renewal Application Environmental Review Project stage: Approval ML15243A2032015-08-27027 August 2015 LaSalle County, Units 1 and 2 - Supplement to Enclosure B of Exelon Generation'S Response to NRC Request for Additional Information, Dated May 22, 2015, Regarding License Renewal Application, Environmental Review Project stage: Response to RAI RS-15-230, Final, Impingement and Entrainment Characterization Study2015-08-27027 August 2015 Final, Impingement and Entrainment Characterization Study Project stage: Other ML16036A3482016-02-0505 February 2016 Maintenance of Draft Supplemental Environmental Impact Statement at the Seneca Public Library in Regards to the Review of the LaSalle County Station License Renewal Application (TAC Nos. MF5567 and MF5568) Project stage: Draft Approval ML16019A1062016-02-0808 February 2016 FRN Dseis - Adm Oked - OGC NLO Project stage: Request ML16019A1742016-02-0808 February 2016 Dseis NOA to EPA Region 5 Project stage: Other ML16019A1462016-02-0808 February 2016 Notice of Availability of the Draft Plant-Specific Supplement 57 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding LaSalle County Station, Units 1 and 2 (TAC Nos. MF5567 and MF5568) Project stage: Draft Other ML16050A4932016-02-13013 February 2016 Maintenance of Draft Supplemental Environmental Impact Statement at the Seneca Public Library in Regards to the Review of the LaSalle County Station License Renewal Application Project stage: Draft Approval ML16033A1032016-02-29029 February 2016 NUREG-1437 Dfc, Supp 57, Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding LaSalle County Station, Units 1 and 2. Project stage: Acceptance Review RS-16-144, Response to Request for Additional Information on Severe Accident Mitigation Alternatives for License Renewal Environmental Review Dated July 6, 20162016-07-11011 July 2016 Response to Request for Additional Information on Severe Accident Mitigation Alternatives for License Renewal Environmental Review Dated July 6, 2016 Project stage: Response to RAI ML16200A1562016-07-18018 July 2016 Report on the Safety Aspects of the License Renewal Application of the LaSalle County Station, Units 1 and 2 Project stage: Other ML16204A2362016-08-26026 August 2016 Notice of Availability of the Final Plant-Specific Supplement 57 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding LaSalle County Station, Units 1 and 2 (TAC No. MF5567 & MF5568) Project stage: Other ML16224A7862016-08-26026 August 2016 Notice of Availability of the Final Plant-Specific Supplement 57 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding LaSalle County Station, Units 1 and 2 (TAC Nos. MF5567 and MF5568) Project stage: Other ML16238A0292016-08-31031 August 2016 NUREG-1437, Suppl. 57, Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding LaSalle County Station, Units 1 and 2, Final Report Project stage: Acceptance Review ML16264A2222016-10-19019 October 2016 Record of Decision for License Renewal Project stage: Other ML16299A1032016-10-24024 October 2016 Letter to Ruth Thomas Transmitting Record of Decision on LaSalle County Station License Renewal Application Project stage: Other 2015-05-22
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Category:Letter
MONTHYEARIR 05000373/20230042024-01-24024 January 2024 County Station - Integrated Inspection Report 05000373/2023004 and 05000374/2023004 ML24024A1332024-01-24024 January 2024 Confirmation of Initial License Examination IR 05000373/20230122024-01-18018 January 2024 County Station - Biennial Problem Identification and Resolution Inspection Report 05000373/2023012 and 05000374/2023012 ML23354A2902024-01-0505 January 2024 Exemption from Select Requirements of 10 CFR Part 73 (EPID L-2023-LLE-0028 (Security Notifications, Reports, and Recordkeeping and Suspicious Activity Reporting)) ML23360A6082023-12-27027 December 2023 County Station Request for Information for NRC Commercial Grade Dedication Inspection: Inspection Report 05000373/2024010 and 05000374/2024010 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 ML23305A1402023-12-13013 December 2023 Units 1 & 2; Nine Mile Point, Unit 2; Peach Bottom, Units 2 & 3; and Quad Cities, Units 1 and 2 - Issuance of Amendments to Adopt Traveler TSTF-580 ML23317A1192023-11-10010 November 2023 Constellation Energy Generation, LLC - 2023 Annual Report - Guarantees of Payment of Deferred Premiums RS-23-120, Supplemental Information Letter for Part 73 Exemption Request - Responses to Request for Confirmatory Information2023-11-10010 November 2023 Supplemental Information Letter for Part 73 Exemption Request - Responses to Request for Confirmatory Information IR 05000373/20230032023-11-0909 November 2023 County Station Integrated Inspection Report 05000373/2023003, 05000374/2023003, and 07200070/2023001 ML23286A2602023-11-0808 November 2023 Issuance of Amendment Nos. 260 and 245 to Renewed Facility Operating Licenses Relocation of Pressure and Temperature Limit Curves to the Pressure Temperature Report IR 05000373/20234012023-11-0707 November 2023 County Station Security Baseline Inspection Report 05000373/2023401 and 05000374/2023401 RS-23-103, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-10-13013 October 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation 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 IR 05000374/20230102023-10-11011 October 2023 NRC Inspection Report 05000374/2023010 IR 05000373/20233012023-09-15015 September 2023 Errata to NRC Initial License Examination Report 05000373/2023301; 05000374/2023301 RS-23-080, Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-264-A, Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs2023-08-30030 August 2023 Constellation Energy Generation, LLC, Application to Revise Technical Specifications to Adopt TSTF-264-A, Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs 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 ML23212A9012023-08-0303 August 2023 Regulatory Audit Report to Support the Review of the Amendments to Relocation of the Pressure Temperature Limit Curves to the Pressure and Temperature Limits Report IR 05000373/20230022023-08-0101 August 2023 County Station - Integrated Inspection Report 05000373/2023002 and 05000374/2023002 ML23208A3182023-07-27027 July 2023 Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and RFI RS-23-084, Response to Request for Additional Information Regarding the Application to Revise Design Basis to Allow Use of Plastic Section Properties in Lower Downcomer Braces Analysis2023-07-24024 July 2023 Response to Request for Additional Information Regarding the Application to Revise Design Basis to Allow Use of Plastic Section Properties in Lower Downcomer Braces Analysis ML23192A5272023-07-12012 July 2023 NRC Initial License Examination Report 05000373/2023301; 05000374/2023301 ML23186A2062023-07-0606 July 2023 Information Request for a NRC Post-Approval Site Inspection for License Renewal 05000374/2023010 ML23181A1502023-06-30030 June 2023 Combined Response to Request for Additional Information and Supplemental Information in Support of LAR to Relocate Pressure and Temperature Limit Curves to the Pressure and Temperature Limits Report ML23178A2422023-06-28028 June 2023 Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch III IR 05000373/20230112023-06-26026 June 2023 County Station - Quadrennial Fire Protection Team Inspection Report 05000373/2023011 and 05000374/2023011 RS-23-077, Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations2023-06-16016 June 2023 Response to NRC Regulatory Issue Summary 2023-01, Preparation and Scheduling of Operator Licensing Examinations ML23167A0352023-06-16016 June 2023 Registration of Use of Cask to Store Spent Fuel ML23171A9562023-06-12012 June 2023 Post Exam Ltr RS-23-042, Application to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling2023-05-25025 May 2023 Application to Revise Technical Specifications to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling IR 05000373/20230012023-05-10010 May 2023 County Station - Integrated Inspection Report 05000373/2023001 and 05000374/2023001 ML23123A2202023-05-0303 May 2023 Relief Request I4R-14 for Alternative Frequency to Containment Unbonded Post-Tensioning System Inservice Inspection ML23118A3472023-05-0101 May 2023 County, 1 & 2; Nine Mile Point, 2; and Quad Cities, 1 & 2 - Correction of Amendment No. 193 Adoption of TSTF-306, Revision 2, Add Action to LCO 3.3.6.1 to Give Option to Isolate the Penetration EPID L-2022-LLA-0143 ML23121A1612023-05-0101 May 2023 Information Meeting (Open House) with a Question-and-Answer Session to Discuss NRC 2022 End-of-Cycle Plant Performance Assessment of LaSalle County Station, Units 1 and 2 ML23114A2522023-04-28028 April 2023 Request to Use a Provision of a Later Edition of the ASME Boiler & Pressure Vessel Code, Section XI ML23081A0382023-04-25025 April 2023 County, 1 & 2; Nine Mile Point, 2; and Quad Cities, 1 & 2 - Issuance of Amendments to Adopt TSTF-306, Rev. 2, Add Action to LCO 3.3.6.1 to Give Option to Isolate the Penetration ML23110A3202023-04-21021 April 2023 Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection ML23107A1822023-04-18018 April 2023 Operator Licensing Examination Approval Lasalle County Station, May 2023 RS-23-049, Constellation Energy Generation, LLC, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations2023-03-23023 March 2023 Constellation Energy Generation, LLC, Report on Status of Decommissioning Funding for Reactors and Independent Spent Fuel Storage Installations ML23073A2182023-03-22022 March 2023 Issuance of Amendment No. 258 to Renewed Facility Operating Licenses Exigent Amendment to Revise Design Basis Related to Seismic Requirements RS-23-048, Exigent Amendment Request to Revise Design Basis Related to Seismic Requirements2023-03-0707 March 2023 Exigent Amendment Request to Revise Design Basis Related to Seismic Requirements ML23061A1632023-03-0303 March 2023 Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch 3 IR 05000373/20220062023-03-0101 March 2023 Annual Assessment Letter for LaSalle County Station, Units 1 and 2 (Report 05000373/2022006 and 05000374/2022006) RS-23-045, Constellation Energy Generation, LLC Submittal of Fitness for Duty Performance Data Reports for 2022 Per 10 CFR 26.717(c) & 10 CFR 26.2032023-02-28028 February 2023 Constellation Energy Generation, LLC Submittal of Fitness for Duty Performance Data Reports for 2022 Per 10 CFR 26.717(c) & 10 CFR 26.203 RS-23-037, Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for LaSalle County Station2023-02-22022 February 2023 Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for LaSalle County Station ML23024A1372023-02-0303 February 2023 Request for Withholding Information from Public Disclosure for LaSalle County Station, Unit Nos. 1 and 2 ML23031A1972023-01-31031 January 2023 Notification of NRC Fire Protection Team Inspection Request for Information, Inspection Report Nos. 05000373/2023011 and 05000374/2023011 IR 05000373/20220042023-01-31031 January 2023 County Station - Integrated Inspection Report 05000373/2022004 and 05000374/2022004 RS-23-003, Constellation Energy Generation, LLC, Summary of Changes to Quality Assurance Topical Report, NO-AA-10, and Decommissioning Quality Assurance Program, NO-DC-102023-01-31031 January 2023 Constellation Energy Generation, LLC, Summary of Changes to Quality Assurance Topical Report, NO-AA-10, and Decommissioning Quality Assurance Program, NO-DC-10 2024-01-05
[Table view] Category:Report
MONTHYEARML23181A1522023-06-30030 June 2023 Attachment 2 - LaSalle County Station Units 1 and 2, Pressure and Temperature Limits Report (PTLR) Up to 54 Effective Full-Power Years (Efpy), Revision 3 RS-23-066, Containment Post-Tensioning System Inservice Inspection Basis for Proposed Extension of Examination Interval Technical Report2023-05-0303 May 2023 Containment Post-Tensioning System Inservice Inspection Basis for Proposed Extension of Examination Interval Technical Report RA22-060, Regulatory Commitment Change Summary Report2022-11-30030 November 2022 Regulatory Commitment Change Summary Report ML22332A4552022-11-10010 November 2022 Attachment 7 - BWRVIP-135, Revision 4: BWR Vessel Internals Project Integrated Surveillance Program (ISP) Data Source Book and Plant Evaluations (Non-Proprietary Version) ML22332A4542022-11-10010 November 2022 Attachment 6 - LaSalle County Generating Station Units 1 and 2 Pressure and Temperature Limits Report (PTLR) for 54 Effective Full-Power Years (EFPY) (Non-Proprietary) NMP1L3469, Constellation Energy Company, LLC, Request for Use of Honeywell Mururoa V4F1 R Supplied Air Suits2022-06-30030 June 2022 Constellation Energy Company, LLC, Request for Use of Honeywell Mururoa V4F1 R Supplied Air Suits RS-22-018, Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for LaSalle County Station2022-02-22022 February 2022 Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors for LaSalle County Station RS-21-115, Supplemental Information for License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies, with Proposed Changes to Technical Specifications 4.3.1 and 5.6.52021-11-0404 November 2021 Supplemental Information for License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies, with Proposed Changes to Technical Specifications 4.3.1 and 5.6.5 ML21265A5582021-06-30030 June 2021 Attachment 5: Appendix C, NEI 12-16 Criticality Analysis Checklist RA21-016, Netco Rack Insert 10-year Surveillance Report2021-04-15015 April 2021 Netco Rack Insert 10-year Surveillance Report RS-21-001, Revised Proposed Alternative to Utilize Code Cases N-878 and N-880 for Carbon Steel Piping2021-01-0404 January 2021 Revised Proposed Alternative to Utilize Code Cases N-878 and N-880 for Carbon Steel Piping ML20303A1752020-10-23023 October 2020 Proposed Relief Request from Section XI Repair/Replacement Documentation for Bolting Replacement of Pressure Retaining Bolting RS-20-133, Response to Request for Additional Information Re License Amendment Request to Renewed Facility Operating Licenses to Adopt 10 CFR 50.692020-10-16016 October 2020 Response to Request for Additional Information Re License Amendment Request to Renewed Facility Operating Licenses to Adopt 10 CFR 50.69 ML20085F8612020-03-24024 March 2020 Corrected Drawing for One-Line Electric Power Supply for Lasalle Hardened Containment Vent System (HCVS) Final Integrated Plan (FIP) RA20-015, Triennial Chlorine Survey Report2020-03-20020 March 2020 Triennial Chlorine Survey Report RS-20-024, Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors2020-03-0909 March 2020 Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors ML19228A0232019-08-15015 August 2019 Proposed Alternative to Utilize Code Case N-879 RA19-005, Regulatory Commitment Change Summary Report2019-01-14014 January 2019 Regulatory Commitment Change Summary Report RA18-110, Submittal of 2017 Regulatory Commitment Change Summary Report2018-12-27027 December 2018 Submittal of 2017 Regulatory Commitment Change Summary Report RS-18-131, Report of Full Compliance with Phase 1 and Phase 2 of June 6, 2013 Commission Order Modifying Licenses with Regard to Reliable Hardened Containment Vents Capable of Operation Under Severe Accident Conditions2018-12-14014 December 2018 Report of Full Compliance with Phase 1 and Phase 2 of June 6, 2013 Commission Order Modifying Licenses with Regard to Reliable Hardened Containment Vents Capable of Operation Under Severe Accident Conditions ML18024A2772018-08-16016 August 2018 Lessons Learned from Us NRC Response to the February 2017 LaSalle County Station Unit 2 High Pressure Core Spray Injection Valve Failure RA17-072, Post Accident Monitoring Report2017-08-0202 August 2017 Post Accident Monitoring Report RA17-069, Post Accident Monitoring Report2017-07-21021 July 2017 Post Accident Monitoring Report RS-17-025, Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 3, Flooding Focused Evaluation Summary Submittal2017-03-0808 March 2017 Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 3, Flooding Focused Evaluation Summary Submittal ML16355A4182017-01-11011 January 2017 Flood Hazard Mitigation Strategies Assessment RA16-092, Regulatory Commitment Change Summary Report2016-12-27027 December 2016 Regulatory Commitment Change Summary Report RS-16-182, Mitigating Strategies Flood Hazard Assessment (Msfha) Submittal2016-10-28028 October 2016 Mitigating Strategies Flood Hazard Assessment (Msfha) Submittal ML16305A2962016-10-27027 October 2016 0000-0163-8881-R0-NP, Revision 0, Exelon Nuclear LaSalle County Generating Station Units 1 & 2 Pool Swell Response. ML16167A5022016-09-0606 September 2016 UFSAR, Rev 22, Chap 09 Figures Part 12 of 14 - Redacted ML16167A4462016-09-0606 September 2016 MF7633 and MF7634, UFSAR, Las Fpr Rev._Redacted RS-16-125, Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident2016-08-31031 August 2016 Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident ML16224A7862016-08-26026 August 2016 Notice of Availability of the Final Plant-Specific Supplement 57 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding LaSalle County Station, Units 1 and 2 (TAC Nos. MF5567 and MF5568) ML16200A1562016-07-18018 July 2016 Report on the Safety Aspects of the License Renewal Application of the LaSalle County Station, Units 1 and 2 RS-15-300, Phase 1 (Updated) and Phase 2 Overall Integrated Plan in Response to June 6, 2013 Commission Order Modifying Licenses with Regard to Reliable Hardened Containment Vents Capable of Operation Under Severe Accident..2015-12-16016 December 2015 Phase 1 (Updated) and Phase 2 Overall Integrated Plan in Response to June 6, 2013 Commission Order Modifying Licenses with Regard to Reliable Hardened Containment Vents Capable of Operation Under Severe Accident.. RA15-075, Transmittal of the 2014 Regulatory Commitment Change Summary Report2015-11-20020 November 2015 Transmittal of the 2014 Regulatory Commitment Change Summary Report ML15107A1542015-04-21021 April 2015 Final Accident Sequence Precursor Analysis for the April 17, 2013, Dual Unit Loss of Offsite Power RS-15-004, County Station Introduction of Lead Use Assemblies2015-01-20020 January 2015 County Station Introduction of Lead Use Assemblies ML14352A1902014-12-18018 December 2014 7491-318563-HAO-1, Rev. 2, LaSalle Requested Documents RS-14-277, Proposed Alternative to Utilize Code Case N-513-4, Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3 Piping Section XI, Division 12014-09-24024 September 2014 Proposed Alternative to Utilize Code Case N-513-4, Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3 Piping Section XI, Division 1 ML14177A8592014-06-30030 June 2014 Staff Assessment of the Flooding Walkdown Report Supporting Implementation of Near-Term Task Force Recommendation 2.3 Related to the Fukushima DAI-ICHI Nuclear Power Plant Accident ML14176A9612014-06-24024 June 2014 Submittal of Non-Proprietary BWROG Technical Product, BWROGTP-11-006 - ECCS Containment Walkdown Procedure, Rev 1 (January 2011), as Formally Requested During the Public Meeting Held on April 30, 2014 ML14057A5492014-02-26026 February 2014 Supplemental Information Supporting License Amendment Request to Revise Reactor Coolant System (RCS) Pressure and Temperature (Pit) Curves RS-14-054, LaSalle, Unit 1, Supplemental Information Supporting License Amendment Request to Revise Reactor Coolant System (RCS) Pressure and Temperature (Pit) Curves2014-02-26026 February 2014 LaSalle, Unit 1, Supplemental Information Supporting License Amendment Request to Revise Reactor Coolant System (RCS) Pressure and Temperature (Pit) Curves ML14030A2232014-02-21021 February 2014 Interim Staff Evaluation Relating to Overall Integrated Plan in Response to Order EA-12-049 (Mitigation Strategies) ML14042A3252014-02-19019 February 2014 Mega-Tech Services, LLC Technical Evaluation Report Regarding the Overall Integrated Plan for LaSalle County Station, Units 1 and 2, TAC Nos.: MF1121 and MF1122 ML13358A3652013-12-20020 December 2013 Attachment 5: LaSalle County Station, Unit 1, Pressure/Temperature Limits Report ML13344A9822013-12-0909 December 2013 2012 Regulatory Commitment Change Summary Report ML13282A3502013-10-0404 October 2013 Final Report, Assessment of Wind Speeds Over the LaSalle County Station Ultimate Heat Sink. ML13192A4462013-05-21021 May 2013 Enclosure 1, Updated Transmittal # 1 (Annex a) Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Report No. R ML13008A2192013-01-31031 January 2013 U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee 2023-06-30
[Table view] Category:Miscellaneous
MONTHYEARRA22-060, Regulatory Commitment Change Summary Report2022-11-30030 November 2022 Regulatory Commitment Change Summary Report ML21265A5582021-06-30030 June 2021 Attachment 5: Appendix C, NEI 12-16 Criticality Analysis Checklist RA21-016, Netco Rack Insert 10-year Surveillance Report2021-04-15015 April 2021 Netco Rack Insert 10-year Surveillance Report ML20303A1752020-10-23023 October 2020 Proposed Relief Request from Section XI Repair/Replacement Documentation for Bolting Replacement of Pressure Retaining Bolting RA20-015, Triennial Chlorine Survey Report2020-03-20020 March 2020 Triennial Chlorine Survey Report RS-20-024, Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors2020-03-0909 March 2020 Annual 10 CFR 50.46 Report of Emergency Core Cooling System Evaluation Model Changes and Errors RA19-005, Regulatory Commitment Change Summary Report2019-01-14014 January 2019 Regulatory Commitment Change Summary Report RA18-110, Submittal of 2017 Regulatory Commitment Change Summary Report2018-12-27027 December 2018 Submittal of 2017 Regulatory Commitment Change Summary Report RA17-072, Post Accident Monitoring Report2017-08-0202 August 2017 Post Accident Monitoring Report RA17-069, Post Accident Monitoring Report2017-07-21021 July 2017 Post Accident Monitoring Report RS-17-025, Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 3, Flooding Focused Evaluation Summary Submittal2017-03-0808 March 2017 Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 3, Flooding Focused Evaluation Summary Submittal ML16355A4182017-01-11011 January 2017 Flood Hazard Mitigation Strategies Assessment RA16-092, Regulatory Commitment Change Summary Report2016-12-27027 December 2016 Regulatory Commitment Change Summary Report RS-16-182, Mitigating Strategies Flood Hazard Assessment (Msfha) Submittal2016-10-28028 October 2016 Mitigating Strategies Flood Hazard Assessment (Msfha) Submittal ML16305A2962016-10-27027 October 2016 0000-0163-8881-R0-NP, Revision 0, Exelon Nuclear LaSalle County Generating Station Units 1 & 2 Pool Swell Response. RS-16-125, Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident2016-08-31031 August 2016 Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident ML16224A7862016-08-26026 August 2016 Notice of Availability of the Final Plant-Specific Supplement 57 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding LaSalle County Station, Units 1 and 2 (TAC Nos. MF5567 and MF5568) ML16200A1562016-07-18018 July 2016 Report on the Safety Aspects of the License Renewal Application of the LaSalle County Station, Units 1 and 2 RS-15-300, Phase 1 (Updated) and Phase 2 Overall Integrated Plan in Response to June 6, 2013 Commission Order Modifying Licenses with Regard to Reliable Hardened Containment Vents Capable of Operation Under Severe Accident..2015-12-16016 December 2015 Phase 1 (Updated) and Phase 2 Overall Integrated Plan in Response to June 6, 2013 Commission Order Modifying Licenses with Regard to Reliable Hardened Containment Vents Capable of Operation Under Severe Accident.. RA15-075, Transmittal of the 2014 Regulatory Commitment Change Summary Report2015-11-20020 November 2015 Transmittal of the 2014 Regulatory Commitment Change Summary Report ML14352A1902014-12-18018 December 2014 7491-318563-HAO-1, Rev. 2, LaSalle Requested Documents ML14177A8592014-06-30030 June 2014 Staff Assessment of the Flooding Walkdown Report Supporting Implementation of Near-Term Task Force Recommendation 2.3 Related to the Fukushima DAI-ICHI Nuclear Power Plant Accident ML13344A9822013-12-0909 December 2013 2012 Regulatory Commitment Change Summary Report IR 05000456/20132022013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000289/20132012013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000272/20132012013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000254/20132012013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000277/20132012013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000219/20132012013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000352/20132012013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000373/20132012013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000237/20132022013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000461/20132012013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee IR 05000454/20132022013-01-31031 January 2013 Exelon Generation Co., LLC, U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee ML13008A2192013-01-31031 January 2013 U.S. Nuclear Regulatory Commission (NRC) Office of Investigations (01) Investigation; Summary of 01 Report No. 3-2010-034; NRC Inspection Report Conference Letter - Licensee ML12353A2132012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 6 of 16 ML12353A2052012-11-0101 November 2012 12Q0108.50-R-001, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 1, Part 14 of 15 ML12353A2152012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 7 of 16 ML12353A2162012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 8 of 16 ML12353A2172012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 9 of 16 ML12353A2262012-11-0101 November 2012 12Q0108.50-R-001, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 1, Part 2 of 15 ML12353A2112012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 5 of 16 ML12353A2102012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 4 of 16 ML12353A2092012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 3 of 16 ML12353A2082012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 2 of 16 ML12353A2062012-11-0101 November 2012 12Q0108.50-R-001, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 1, Part 15 of 15 ML12353A2192012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 11 of 16 ML12353A2202012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 12 of 16 ML12353A2212012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 13 of 16 ML12353A2222012-11-0101 November 2012 12Q0108.50-R-002, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 2, Part 14 of 16 2022-11-30
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UNITED STATES NUCLEAR REGULATORY COMMISSION ADVISORY COMMITTEE ON REACTOR SAFEGUARDS WASHINGTON, DC 20555 - 0001 July 18, 2016 The Honorable Stephen G. Burns Chairman U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
SUBJECT:
REPORT ON THE SAFETY ASPECTS OF THE LICENSE RENEWAL APPLICATION OF THE LASALLE COUNTY STATION, UNITS 1 AND 2
Dear Chairman Burns:
During the 635th meeting of the Advisory Committee on Reactor Safeguards (ACRS), July 6 - 8, 2016, we completed our review of the license renewal application for the LaSalle County Station, Units 1 and 2 (LaSalle) and the final safety evaluation report (SER) prepared by the NRC staff. Our Subcommittee on Plant License Renewal reviewed this matter during a meeting on April 19, 2016. During these reviews, we had the benefit of discussions with representatives of the NRC staff and the Exelon Generation Company, LLC (Exelon or the applicant). We also had the benefit of the referenced documents. This report fulfills the requirement of 10 CFR 54.25 that the ACRS review and report on all license renewal applications.
CONCLUSION AND RECOMMENDATION
- 1. The programs established and committed to by Exelon to manage age-related degradation provide reasonable assurance that LaSalle can be operated in accordance with its current licensing bases for the period of extended operation without undue risk to the health and safety of the public.
- 2. Exelons application for renewal of the operating licenses for LaSalle should be approved.
BACKGROUND LaSalle is located approximately 55 miles southwest of Chicago, Illinois. Units 1 and 2 are of a boiling water reactor (BWR) Type 5 (BWR/5) design. Each primary containment is a Mark II type, safety-related seismic Category I structure consisting of a steel dome head and post-tensioned concrete wall standing on a base mat of conventionally reinforced concrete. General Electric provided the nuclear steam supply system, and Sargent & Lundy designed and constructed the balance of the plant. Each unit has a licensed power output of 3,546 megawatts thermal, with a gross electrical output of approximately 1,207 megawatts. The NRC issued the construction permits (CPRR-99 and CPRR-100, respectively) for Units 1 and 2 on September 7, 1973. The NRC issued the operating licenses for Unit 1 and Unit 2 on April 17, 1982, and December 16, 1983, respectively.
2 In this application, Exelon requests renewal of the operating licenses (Facility Operating License Nos. NPF-11 and NPF-18) for a period of 20 years beyond the current expiration date of April 17, 2022, for Unit 1, and December 16, 2023, for Unit 2.
DISCUSSION In its final SER, dated June 2016, the staff documented its review of the license renewal application and other information submitted by the applicant and obtained through staff audits and inspections at the plant sites. The staff reviewed the completeness of the identification of structures, systems, and components (SSCs) that are within the scope of license renewal; the integrated plant assessment process; the identification of plausible aging mechanisms associated with passive, long-lived components; the adequacy of the Aging Management Programs (AMPs); and identification and assessment of Time-Limited Aging Analyses (TLAAs) requiring review.
Exelons LaSalle license renewal application identified the SSCs that fall within the scope of license renewal. The application is largely consistent with the Generic Aging Lessons Learned (GALL) Report (NUREG-1801). Deviations and exceptions are documented and justified.
Exelon will implement 46 AMPs for license renewal, comprised of 35 existing programs and 11 new programs. Nineteen of the 46 AMPs are consistent with the GALL Report without enhancements or exceptions. Nineteen AMPs are consistent with enhancements. Three AMPs are consistent with exceptions. Three AMPs are consistent with enhancements and exceptions.
Two AMPs, Service Level III and Service Level III Augmented Coatings Monitoring and Maintenance Program, and Unit 2 Inspection of The American Society of Mechanical Engineers (ASME) Code Class 1 Small-Bore Piping Program, are plant-specific.
The license renewal application includes six programs with exceptions to the GALL Report. We reviewed these programs (Flow-Accelerated Corrosion, Reactor Vessel Surveillance, Compressed Air Monitoring, Fire Water System, Reactor Head Closure Stud Bolting, and Water Chemistry). We conclude that the six GALL programs with exceptions are acceptable.
The staff conducted license renewal audits and performed license renewal inspections at LaSalle. The audits verified the adequacy of the scoping and screening methodology for AMPs, the appropriateness of the aging management review, and the acceptability of the TLAAs. The inspection verified that the license renewal requirements are implemented appropriately. Both the inspection, and the report of that inspection, are thorough. Based on the audits, the inspection, and the staff reviews related to this license renewal application, the staff concluded in the final SER that the proposed activities will manage the effects of aging of SSCs identified in the application and that the intended functions of these SSCs will be maintained during the period of extended operation. The staff concluded that Exelon has demonstrated that the effects of aging at LaSalle will be adequately managed so that the intended function(s) will be maintained consistent with the current licensing basis for the period of extended operation, as required by 10 CFR 54.21(a)(3).
Two open items were resolved between our subcommittee meeting on April 19, 2016, and our final review on July 6, 2016. The open items pertained to 1) enhanced visual testing examination coverage and 2) limited volumetric examination coverage. Resolution of the open items is as follows.
3 EVT-1 Examination Coverage - BWR Vessel ID Attachment Welds Aging Management Program This item addresses changes to the BWR Vessel Internals Program (BWRVIP) guidance for EVT-1 viewing angle limitation that reduced effective examination coverage. Coverage requirements were not specified. The staffs concern was the programs ability to credit EVT-1s with 0% coverage; therefore, the staff raised the question of program adequacy. Exelon provided information to the NRC on February 25, 2016, in response to Request for Additional Information B.2.1.4-1 that 1) revised the procedure to eliminate the possibility that EVT-1 weld exam coverage of 0% could be acceptable and 2) communicated that visual inspections are performed of entire accessible Vessel ID attachment welds by a certified nondestructive examination examiner. EVT-1 examination coverage is maximized, consistent with BWRVIP A and BWRVIP-03 guidance.
Limited Volumetric Exam Coverage - BWR Stress Corrosion Cracking Aging Management Program This item addresses examination coverage for augmented weld inspections. The staff was concerned that program effectiveness could not be assured without documented bases for crediting limited weld inspections. Exelon provided information to the NRC on February 25, 2016, stating that 90% examination coverage is considered the minimum acceptable examination coverage, without evaluation, during the period of extended operation. If examination coverage is less than 90%, procedures require action to maximize the extent of examination coverage. In addition, if the examinations with less than 90% coverage are required to meet ASME Code Section XI requirements, a relief request is required. Exelon changed procedures for examinations that are required to meet the AMP, but not to meet ASME code requirements. The new procedures require an engineering technical evaluation equivalent to a relief request.
We agree with the staff that there are no issues related to the matters described in 10 CFR 54.29(a) (1) and (a) (2) that preclude renewal of the operating licenses for LaSalle. The programs established and committed to by Exelon provide reasonable assurance that LaSalle can be operated in accordance with its current licensing basis for the period of extended operation without undue risk to the health and safety of the public. The Exelon application for renewal of the operating licenses for LaSalle, Units 1 and 2 should be approved.
Sincerely,
/RA/
Dennis C. Bley Chairman
3 REFERENCES
- 1. Exelon Generation Company, LLC, LaSalle County Station, Units 1 and 2, Application for Renewed Operating Licenses, December 9, 2014 (ML14343A840).
- 2. U.S. Nuclear Regulatory Commission, Safety Evaluation Report Related to the License Renewal of LaSalle County Station, Units 1 and 2, June 2016 (ML16126A503).
- 3. U.S. Nuclear Regulatory Commission, Safety Evaluation Report with Open items Related to the License Renewal of LaSalle County Station, Units 1 and 2, February 2016 (ML16053A439).
- 4. U.S. Nuclear Regulatory Commission, NUREG 1801, Generic Aging Lessons Learned (GALL) Report, Revision 2, December 2010 (ML103490041).
- 5. U.S. Nuclear Regulatory Commission, Aging Management Programs Audit Report Regarding LaSalle County Station, Units 1 and 2 (TAC NOS. MF5347 and MF5346),
September 22, 2015 (ML15196A115).
- 6. U.S. Nuclear Regulatory Commission, Scoping and Screening Methodology Audit Report Regarding LaSalle County Station, Units 1 and 2 (TAC NOS. MF5347 and MF5346), May 8, 2015 (ML15104A782).
- 7. U.S. Nuclear Regulatory Commission, LaSalle County Station, Units 1 and 2 License Renewal Scoping, Screening, and Aging Management Inspection Report 05000373/2015008; 05000374/2015008, November 18, 2015 (ML15323A064).
- 8. U.S. Nuclear Regulatory Commission, NUREG-1800, Standard Review Plan for Review of License Renewal Applications for Nuclear Power Plants, Revision 2, December 2010 (ML103490036).
- 9. U.S. Nuclear Regulatory Commission, Regulatory Guide 1.188, Standard Format and Content for Applications to Renew Nuclear Power Plant Operating Licenses, Revision 1, September 2005 (ML082950585).
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Viewing Rights: NRC Users or ACRS only or See restricted distribution OFFICE ACRS SUNSI ACRS ACRS ACRS Review NAME KHoward KHoward MBanks AValentin DBley DATE 7/18/16 7/18/16 7/18/16 7/18/16 7/18/16 OFFICIAL RECORD COPY
3 Letter to the Honorable Stephen G. Burns, Chairman, NRC, from Dennis C. Bley, Chairman, ACRS, dated July 18, 2016
SUBJECT:
REPORT ON THE SAFETY ASPECTS OF THE LICENSE RENEWAL APPLICATION OF THE LASALLE COUNTY STATION, UNITS 1 AND 2 Distribution:
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