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| =Text= | | =Text= |
| {{#Wiki_filter:January 22, 2008 | | {{#Wiki_filter:January 22, 2008 Mr. Charles G. Pardee Chief Nuclear Officer and Senior Vice President Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 |
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| Mr. Charles G. Pardee Chief Nuclear Officer and Senior Vice President Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 | |
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| ==SUBJECT:== | | ==SUBJECT:== |
| LASALLE COUNTY STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO REQUEST FOR RELIEF I3R-01 ASSOCIATED WITH THE THIRD 10-YEAR INSERVICE INSPECTION INTERVAL, INSPECTION PROGRAM PLAN RISK-INFORMED INSERVICE INSPECTION OF PIPING (TAC NOS. MD5457 AND MD5458) | | LASALLE COUNTY STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO REQUEST FOR RELIEF I3R-01 ASSOCIATED WITH THE THIRD 10-YEAR INSERVICE INSPECTION INTERVAL, INSPECTION PROGRAM PLAN RISK-INFORMED INSERVICE INSPECTION OF PIPING (TAC NOS. MD5457 AND MD5458) |
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| ==Dear Mr. Pardee:== | | ==Dear Mr. Pardee:== |
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| By letter to the Nuclear Regulatory Commission (NRC) dated June 18, 2007, Exelon Generation Company, LLC submitted a relief request (RR) associated with the third 10-year inservice inspection interval, for the LaSalle County Station, Units 1 and 2. The submittal requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code), Section XI, requirements for the selection and examination of Class 1 and 2 piping and welds. The RR I3R-01 proposes and alternative to the existing ASME Code to use the Electric Power Research Institute Topical Report 112657, Revision B-A, methodology for a Risk-Informed Inservice Inspection program approved by the NRC. | | By letter to the Nuclear Regulatory Commission (NRC) dated June 18, 2007, Exelon Generation Company, LLC submitted a relief request (RR) associated with the third 10-year inservice inspection interval, for the LaSalle County Station, Units 1 and 2. The submittal requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code), Section XI, requirements for the selection and examination of Class 1 and 2 piping and welds. The RR I3R-01 proposes and alternative to the existing ASME Code to use the Electric Power Research Institute Topical Report 112657, Revision B-A, methodology for a Risk-Informed Inservice Inspection program approved by the NRC. |
| | | The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on Tuesday, January 8, 2008, it was agreed that you would provide a response within 15 days from the date of this letter. |
| The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on Tuesday, January 8, 2008, it was agreed that you would provide a response within 15 days from the date of this letter. | | The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC=s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154. |
| | | Sincerely, |
| The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC | | /RA/ |
| =s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154. | | Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374 |
| Sincerely, | |
| /RA/ Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
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| Docket Nos. 50-373 and 50-374 | |
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| ==Enclosure:== | | ==Enclosure:== |
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| Request for Additional Information | | Request for Additional Information cc w/encl: See next page |
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| cc w/encl: See next page Mr. Charles G. Pardee January 22, 2008 Chief Nuclear Officer and Senior Vice President Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
| | Mr. Charles G. Pardee January 22, 2008 Chief Nuclear Officer and Senior Vice President Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555 |
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| ==SUBJECT:== | | ==SUBJECT:== |
| LASALLE COUNTY STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO REQUEST FOR RELIEF I3R-01 ASSOCIATED WITH THE THIRD 10-YEAR INSERVICE INSPECTION INTERVAL, INSPECTION PROGRAM PLAN RISK-INFORMED INSERVICE INSPECTION OF PIPING (TAC NOS. MD5457 AND MD5458) | | LASALLE COUNTY STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO REQUEST FOR RELIEF I3R-01 ASSOCIATED WITH THE THIRD 10-YEAR INSERVICE INSPECTION INTERVAL, INSPECTION PROGRAM PLAN RISK-INFORMED INSERVICE INSPECTION OF PIPING (TAC NOS. MD5457 AND MD5458) |
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| ==Dear Mr. Pardee:== | | ==Dear Mr. Pardee:== |
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| By letter to the Nuclear Regulatory Commission (NRC) dated June 18, 2007, Exelon Generation Company, LLC submitted a relief request (RR) associated with the third 10-year inservice inspection interval, for the LaSalle County Station, Units 1 and 2. The submittal requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code), Section XI, requirements for the selection and examination of Class 1 and 2 piping and welds. The RR I3R-01 proposes and alternative to the existing ASME Code to use the Electric Power Research Institute Topical Report 112657, Revision B-A, methodology for a Risk-Informed Inservice Inspection program approved by the NRC. | | By letter to the Nuclear Regulatory Commission (NRC) dated June 18, 2007, Exelon Generation Company, LLC submitted a relief request (RR) associated with the third 10-year inservice inspection interval, for the LaSalle County Station, Units 1 and 2. The submittal requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code), Section XI, requirements for the selection and examination of Class 1 and 2 piping and welds. The RR I3R-01 proposes and alternative to the existing ASME Code to use the Electric Power Research Institute Topical Report 112657, Revision B-A, methodology for a Risk-Informed Inservice Inspection program approved by the NRC. |
| | | The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on Tuesday, January 8, 2008, it was agreed that you would provide a response within 15 days from the date of this letter. |
| The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on Tuesday, January 8, 2008, it was agreed that you would provide a response within 15 days from the date of this letter. | | The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC=s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154. |
| | | Sincerely, |
| The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC | | /RA/ |
| =s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154. | | Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374 |
| Sincerely, /RA/ Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation | |
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| Docket Nos. 50-373 and 50-374 | |
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| ==Enclosure:== | | ==Enclosure:== |
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| Request for Additional Information | | Request for Additional Information DISTRIBUTION: |
| | | PUBLIC LPL3-2 R/F RidsNrrDorlLpl3-2 RidsOgcRp RidsNrrDorlDpr RidsNrrPMSSands RidsNrrLAEWhitt RidsAcrsAcnwMailCenter RidsRgn3MailCenter ADAMS Accession Number: ML080140588 NRR-088 OFFICE LPL3-2/PM LPL3-2/LA LPL3-2/BC NAME SSands:sp EWhitt RGibbs DATE 1/ 17/08 1/17/08 1/22/08 OFFICIAL RECORD COPY |
| DISTRIBUTION: | |
| PUBLIC LPL3-2 R/F RidsNrrDorlLpl3-2 RidsOgcRp RidsNrrDorlDpr RidsNrrPMSSands RidsNrrLAEWhitt RidsAcrsAcnwMailCenter RidsRgn3MailCenter ADAMS Accession Number: ML080140588 NRR-088 OFFICE LPL3-2/PM LPL3-2/LA LPL3-2/BC | |
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| NAME SSands:sp EWhitt RGibbs DATE 1/ 17/08 1/17/08 1/22/08 OFFICIAL RECORD COPY LaSalle County Station, Units 1 and 2 | |
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| cc: Corporate Distribution Exelon Generation Company, LLC via e-mail LaSalle Distribution Exelon Generation Company, LLC via e-mail
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| LaSalle Senior Resident Inspector U.S. Nuclear Regulatory Commission via e-mail
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| Phillip P. Steptoe, Esquire Sidley and Austin One First National Plaza Chicago, IL 60603
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| Assistant Attorney General 100 W. Randolph St. Suite 12 Chicago, IL 60601
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| Chairman LaSalle County Board 707 Etna Road Ottawa, IL 61350
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| Attorney General 500 S. Second Street Springfield, IL 62701
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| Chairman Illinois Commerce Commission 527 E. Capitol Avenue, Leland Building Springfield, IL 62706
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| Robert Cushing, Chief, Public Utilities Division Illinois Attorney General's Office 100 W. Randolph Street Chicago, IL 60601
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| Illinois Emergency Management Agency Division of Disaster Assistance &
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| Preparedness via e-mail
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| Enclosure REQUEST FOR ADDITIONAL INFORMATION
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| LASALLE COUNTY STATION, UNITS 1 AND 2
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| DOCKET NOS. 50-373 AND 50-374
| | LaSalle County Station, Units 1 and 2 cc: |
| | Corporate Distribution Exelon Generation Company, LLC via e-mail LaSalle Distribution Exelon Generation Company, LLC via e-mail LaSalle Senior Resident Inspector U.S. Nuclear Regulatory Commission via e-mail Phillip P. Steptoe, Esquire Sidley and Austin One First National Plaza Chicago, IL 60603 Assistant Attorney General 100 W. Randolph St. Suite 12 Chicago, IL 60601 Chairman LaSalle County Board 707 Etna Road Ottawa, IL 61350 Attorney General 500 S. Second Street Springfield, IL 62701 Chairman Illinois Commerce Commission 527 E. Capitol Avenue, Leland Building Springfield, IL 62706 Robert Cushing, Chief, Public Utilities Division Illinois Attorney General's Office 100 W. Randolph Street Chicago, IL 60601 Illinois Emergency Management Agency Division of Disaster Assistance & |
| | Preparedness via e-mail |
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| In reviewing the Exelon Generation Company | | REQUEST FOR ADDITIONAL INFORMATION LASALLE COUNTY STATION, UNITS 1 AND 2 DOCKET NOS. 50-373 AND 50-374 In reviewing the Exelon Generation Company=s (Exelon=s) submittal dated June 18, 2007, related to a relief request (RR) associated with the third inservice inspection interval, for the LaSalle County Station, Units 1 and 2. The submittal requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code), Section XI, requirements for the selection and examination of Class 1 and 2 piping and welds. The NRC staff has determined that the following information is needed in order to complete its review: |
| =s (Exelon=s) submittal dated June 18, 2007, related to a relief request (RR) associated with the third inservice inspection interval, for the LaSalle County Station, Units 1 and 2. The submittal requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code), Section XI, requirements for the selection and examination of Class 1 and 2 piping and welds. The NRC staff has determined that the following information is needed in order to complete its review: | | : 1. Please confirm that the change in risk between the original ASME program and the program you are proposing to implement for the third interval meets all the risk acceptance guidelines in the Electric Power Research Institute (EPRI) methodology. |
| : 1. Please confirm that the change in risk between the original ASME program and the program you are proposing to implement for the third interval meets all the risk acceptance guidelines in the Electric Power Research Institute (EPRI) methodology. | | : 2. Provide an explanation as to why the change in risk is not expected to change from the last estimate. |
| : 2. Provide an explanation as to why the change in risk is not expected to change from the last estimate. | | : 3. Provide an estimate of the change in core damage frequency and large early release frequency between the original ASME program and the program you are proposing to implement for the next interval. |
| : 3. Provide an estimate of the change in core damage frequency and large early release frequency between the original ASME program and the program you are proposing to implement for the next interval. | | : 4. Confirm that the system level change in risk acceptance guidelines in the EPRI methodology are met. (This calculation must be based in an up-dated PRA model). |
| : 4. Confirm that the system level change in risk acceptance guidelines in the EPRI methodology are met. (This calculation must be based in an up-dated PRA model).}} | | Enclosure}} |
Letter Sequence RAI |
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MONTHYEARML0801405882008-01-22022 January 2008
RAI Letter Request for Relief 13R-01 Associated with the Third 10-Year Inservice Inspection Interval, Inspection Program Plan Risk-Informed Inservice Inspection of Piping
Project stage: RAI
RS-08-008, Response to RAI Related to Relief Request I3R-01, Alternate Risk-Informed Selection and Examination Criteria for Examination Category B-F, B-J, C-F-1, and C-F-2 Pressure Retaining Piping Welds.2008-02-0101 February 2008
Response to RAI Related to Relief Request I3R-01, Alternate Risk-Informed Selection and Examination Criteria for Examination Category B-F, B-J, C-F-1, and C-F-2 Pressure Retaining Piping Welds.
Project stage: Response to RAI
ML0809402152008-04-29029 April 2008
RR 13R-01, Associated with the Third 10-Year Interval
Project stage: Other
2008-02-01
[Table View] |
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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:Request for Additional Information (RAI)
MONTHYEARML23360A6082023-12-27027 December 2023
County Station Request for Information for NRC Commercial Grade Dedication Inspection: Inspection Report 05000373/2024010 and 05000374/2024010
ML23264A7992023-09-21021 September 2023
NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC Fleet Request License Amendment Request to Adopt TSTF-580, Revision 1
ML23208A3182023-07-27027 July 2023
Notification of an NRC Biennial Licensed Operator Requalification Program Inspection and RFI
ML23153A1562023-06-0202 June 2023
NRR E-mail Capture - RAI LaSalle pressure-temperature Limits Report (PTLR) Amendment Request
ML23150A2482023-05-25025 May 2023
NRR E-mail Capture - RAI Re LaSalle Downcomer Analysis Amendment Request
ML23110A3202023-04-21021 April 2023
Information Request to Support the NRC Annual Baseline Emergency Action Level and Emergency Plan Changes Inspection
ML22361A0792022-12-27027 December 2022
Notification of NRC Baseline Inspection and Request for Information (05000374/2023001)
ML22256A0112022-09-12012 September 2022
NRR E-mail Capture - Request for Additional Information LaSalle County Station, Units 1 and 2 and Quad Cities Nuclear Power Station, Units 1 and 2 License Amendments Related to Fuel Storage
ML22138A4112022-05-18018 May 2022
NRR E-mail Capture - Lasalle 1 and 2 - (RAI) License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies, with Changes to TS Sections 4.3.1 and 5.6.5 (EPID-L-2021-LLA-0124)
ML22126A0392022-05-0606 May 2022
NRR E-mail Capture - Lasalle 1 and 2 Draft (RAI) License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies, with Proposed Changes to TS Sections 4.3.1 and 5.6.5
ML22097A0832022-04-0707 April 2022
County Station Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000373/2022403 and 05000374/2022403
ML22062B0232022-03-0303 March 2022
NRR E-mail Capture - EPID-L-2022-LLR-0028, LaSalle Unit 1, Request for Additional Information (Rai), LaSalle Unit 1, Relief Request I4R-13 Relief from Code Examinations for 1B33-F060A and 1B33-F060B Repairs
ML22041B5362022-02-10010 February 2022
NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541
ML22020A0642022-01-13013 January 2022
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles
ML21292A1782021-10-19019 October 2021
Information Request for a NRC Post-Approval Site Inspection for License Renewal 05000373/2022010
ML21256A1902021-09-10010 September 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21207A0072021-07-26026 July 2021
NRR E-mail Capture - La Salle Units 1 and 2 - Request for Additional Information (RAI) License Amendment Request to Incorporate Licensing Topical Report NEDE-33885P-A, Revision 1, GNF CRDA Application Methodology(EPID-L-2021-LLA-0016)
ML21190A0192021-07-0808 July 2021
NRR E-mail Capture - Exelon Fleet - Request for Additional Information Regarding Adoption of TSTF-582 and TSTF-583-T
ML21187A2972021-07-0707 July 2021
Information Request for an NRC Triennial 10 CFR 50.59 (Evaluation of Changes, Tests, and Experiments) Baseline Inspection
ML21144A2132021-05-24024 May 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application
ML21117A0342021-05-0505 May 2021
Request for Additional Information Regarding Proposed Alternative to Use ASME Code Case N-893
ML21119A2282021-04-29029 April 2021
NRR E-mail Capture - Request for Additional Information (RAI) - LaSalle, EPID-L-2020-LLA-0018, License Amendment Request (LAR) TSTF-505
ML21077A1902021-03-18018 March 2021
NRR E-mail Capture - Lasalle Units 1 and 2 - Request for Additional Information (RAI) Request for License Amendment Regarding Ultimate Heat Sink, (EPID-L-2020-LLA-0165)
ML21068A2762021-03-0909 March 2021
NRR E-mail Capture - La Salle Units 1 and 2 - Request for Additional Information (RAI) Relief Request I4R-12 Relief from Code Surface Examinations for 2B33-F060B Valve Repair (EPID-L-2020-LLA-0016)
ML21067A6752021-03-0808 March 2021
NRR E-mail Capture - La Salle Units 1 and 2 - Request for Additional Information (RAI) UHS Amendment Request (EPID-L-2020-LLA-0165)
ML21060B4352021-03-0101 March 2021
NRR E-mail Capture - Second Round - Request for Additional Information (Rais) EPID-L-2020-LLA-0018, LaSalle License Amendment Request to Adopt Risk Informed Completion Times TSTF-505, Revision 2
ML21062A0652021-03-0101 March 2021
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting
ML21053A0252021-02-20020 February 2021
NRR E-mail Capture - Request for Additional Information (Rais) - LaSalle Request for Exemption from Pre-Access Drug and Alcohol Testing
ML21049A2572021-02-18018 February 2021
Request for Additional Information Byron/Dresden Proposed Changes to Site Emergency Plans to Support Post-Shutdown and Permanently Defueled Conditions (EPID-2020-LLA-0240 & EPID-2020-LLA-0237)
ML21048A0432021-02-16016 February 2021
County Station - Notification of NRC Design Bases Assurance Inspection (Programs) and Initial Request for Information - Inspection Report 05000373/2021011 and 05000374/2021011
ML20364A2452020-12-29029 December 2020
Notification of an NRC Triennial Heat Sink Performance Inspection and Request for Information; Inspection Report 05000373/2021002; 05000374/2021002
ML20346A1042020-12-11011 December 2020
NRR E-mail Capture - LaSalle County Station, Units 1 and 2 - Request for Additional Information Regarding the License Amendment Request to Adopt 10 CFR 50.69
ML20330A1892020-11-25025 November 2020
Request for Information for an NRC Post-Approval Site Inspection for License Renewal; Inspection Report 05000374/2021010
ML20321A0852020-11-16016 November 2020
Notification of NRC Baseline Inspection and Request for Information (05000374/2021001)
ML20247J4082020-09-29029 September 2020
Apla Request for Additional Information LAR 50.69 and TSTF-505 (Epids L-2020-LLA-0017) and
ML20253A3422020-09-17017 September 2020
Correction to Request for Additional Information Request to Adopt 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems, and Components for Nuclear Power Reactors (EPID-2020-LLA-0017)
ML20253A2272020-09-16016 September 2020
Correction to Request for Additional Information Application to Adopt Risk-Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b
ML20240A2182020-09-0303 September 2020
Request for Additional Information Regarding Amendment Request for Amendments to Renewed Facility Operating Licenses to Adopt 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems, and Co
ML20239A7262020-08-27027 August 2020
Supplemental Information Needed for Acceptance of Requested Licensing Action Regarding Request for a License Amendment to Technical Specification 3.7.3, Ultimate Heat Sink
ML20239A7982020-08-25025 August 2020
NRR E-mail Capture - Exelon Generation Company, LLC - Fleet License Amendment Request to Adopt TSTF-568, Revision 2
ML19275H1362019-10-0202 October 2019
NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Request to Use ASME Code Case N-879
ML19179A0612019-07-19019 July 2019
Three Mile Point 1 - Supplemental Information Needed to Proposed Alternative to Use ASME Code Case N-879
ML19120A2302019-04-29029 April 2019
Ltr. 04/29/19 LaSalle County Station, Units 1 and 2 - Request for Information for an NRC Triennial Baseline Design Bases Assurance Inspection (Team); Inspection Report 05000373/2019012; 05000374/2019012 (DRS-M.Jones)
ML19087A2682019-03-28028 March 2019
NRR E-mail Capture - Request for Additional Information (RAI) - LaSalle 1 and 2, EPID-L-2018-LLA-0162, LAR Removal of Operating Mode Restrictions for Performing Surveillance Testing of the Div 3 Battery and HPCS DG
ML19065A0902019-03-0505 March 2019
NRR E-mail Capture - LaSalle 1 and 2, EPID-L-2018-LLR-0162, LAR Removal of Operating Mode Restrictions for Performing Surveillance Testing of the Div 3 Battery and HPCS DG, Additional Draft Request for Additional Information (RAI)
ML19058A2392019-02-27027 February 2019
Information Request to Support Upcoming Problem Identification and Resolution Inspection at LaSalle County Station, Units 1 and 2
ML19036A6562019-02-0505 February 2019
NRR E-mail Capture - LaSalle 1 and 2, EPID-L-2018-LLR-0123, Relief Request I3R-15, Third Inservice Inspection Interval, Request for Additional Information (RAI)
ML19022A2552019-01-22022 January 2019
NRR E-mail Capture - LaSalle Units 1 and 2, EPID-L-2018-LLA-0035, Amendment Request to Adopt TSTF-334-A, Status of Revised Draft RAIs Sent to You on December 13, 2018
ML19050A0042019-01-22022 January 2019
NRR E-mail Capture - LaSalle 1 and 2, EPID-L-2018-LLR-0162, LAR Removal of Operating Mode Restrictions for Performing Surveillance Testing of the Div 3 Battery and HPCS DG, Draft Request for Additional Information (RAI)
ML19022A0292018-12-13013 December 2018
NRR E-mail Capture - Draft Request for Additional Information for LaSalle License Amendment Request to Adopt TSTF-334-A, Revision 2
2023-09-21
[Table view] |
Text
January 22, 2008 Mr. Charles G. Pardee Chief Nuclear Officer and Senior Vice President Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
LASALLE COUNTY STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO REQUEST FOR RELIEF I3R-01 ASSOCIATED WITH THE THIRD 10-YEAR INSERVICE INSPECTION INTERVAL, INSPECTION PROGRAM PLAN RISK-INFORMED INSERVICE INSPECTION OF PIPING (TAC NOS. MD5457 AND MD5458)
Dear Mr. Pardee:
By letter to the Nuclear Regulatory Commission (NRC) dated June 18, 2007, Exelon Generation Company, LLC submitted a relief request (RR) associated with the third 10-year inservice inspection interval, for the LaSalle County Station, Units 1 and 2. The submittal requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, requirements for the selection and examination of Class 1 and 2 piping and welds. The RR I3R-01 proposes and alternative to the existing ASME Code to use the Electric Power Research Institute Topical Report 112657, Revision B-A, methodology for a Risk-Informed Inservice Inspection program approved by the NRC.
The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on Tuesday, January 8, 2008, it was agreed that you would provide a response within 15 days from the date of this letter.
The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC=s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154.
Sincerely,
/RA/
Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374
Enclosure:
Request for Additional Information cc w/encl: See next page
Mr. Charles G. Pardee January 22, 2008 Chief Nuclear Officer and Senior Vice President Exelon Generation Company, LLC 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
LASALLE COUNTY STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO REQUEST FOR RELIEF I3R-01 ASSOCIATED WITH THE THIRD 10-YEAR INSERVICE INSPECTION INTERVAL, INSPECTION PROGRAM PLAN RISK-INFORMED INSERVICE INSPECTION OF PIPING (TAC NOS. MD5457 AND MD5458)
Dear Mr. Pardee:
By letter to the Nuclear Regulatory Commission (NRC) dated June 18, 2007, Exelon Generation Company, LLC submitted a relief request (RR) associated with the third 10-year inservice inspection interval, for the LaSalle County Station, Units 1 and 2. The submittal requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, requirements for the selection and examination of Class 1 and 2 piping and welds. The RR I3R-01 proposes and alternative to the existing ASME Code to use the Electric Power Research Institute Topical Report 112657, Revision B-A, methodology for a Risk-Informed Inservice Inspection program approved by the NRC.
The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter. During a discussion with your staff on Tuesday, January 8, 2008, it was agreed that you would provide a response within 15 days from the date of this letter.
The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRC=s goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154.
Sincerely,
/RA/
Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374
Enclosure:
Request for Additional Information DISTRIBUTION:
PUBLIC LPL3-2 R/F RidsNrrDorlLpl3-2 RidsOgcRp RidsNrrDorlDpr RidsNrrPMSSands RidsNrrLAEWhitt RidsAcrsAcnwMailCenter RidsRgn3MailCenter ADAMS Accession Number: ML080140588 NRR-088 OFFICE LPL3-2/PM LPL3-2/LA LPL3-2/BC NAME SSands:sp EWhitt RGibbs DATE 1/ 17/08 1/17/08 1/22/08 OFFICIAL RECORD COPY
LaSalle County Station, Units 1 and 2 cc:
Corporate Distribution Exelon Generation Company, LLC via e-mail LaSalle Distribution Exelon Generation Company, LLC via e-mail LaSalle Senior Resident Inspector U.S. Nuclear Regulatory Commission via e-mail Phillip P. Steptoe, Esquire Sidley and Austin One First National Plaza Chicago, IL 60603 Assistant Attorney General 100 W. Randolph St. Suite 12 Chicago, IL 60601 Chairman LaSalle County Board 707 Etna Road Ottawa, IL 61350 Attorney General 500 S. Second Street Springfield, IL 62701 Chairman Illinois Commerce Commission 527 E. Capitol Avenue, Leland Building Springfield, IL 62706 Robert Cushing, Chief, Public Utilities Division Illinois Attorney General's Office 100 W. Randolph Street Chicago, IL 60601 Illinois Emergency Management Agency Division of Disaster Assistance &
Preparedness via e-mail
REQUEST FOR ADDITIONAL INFORMATION LASALLE COUNTY STATION, UNITS 1 AND 2 DOCKET NOS. 50-373 AND 50-374 In reviewing the Exelon Generation Company=s (Exelon=s) submittal dated June 18, 2007, related to a relief request (RR) associated with the third inservice inspection interval, for the LaSalle County Station, Units 1 and 2. The submittal requests relief from the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (ASME Code),Section XI, requirements for the selection and examination of Class 1 and 2 piping and welds. The NRC staff has determined that the following information is needed in order to complete its review:
- 1. Please confirm that the change in risk between the original ASME program and the program you are proposing to implement for the third interval meets all the risk acceptance guidelines in the Electric Power Research Institute (EPRI) methodology.
- 2. Provide an explanation as to why the change in risk is not expected to change from the last estimate.
- 3. Provide an estimate of the change in core damage frequency and large early release frequency between the original ASME program and the program you are proposing to implement for the next interval.
- 4. Confirm that the system level change in risk acceptance guidelines in the EPRI methodology are met. (This calculation must be based in an up-dated PRA model).
Enclosure
