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| ==Enclosures:== | | ==Enclosures:== |
| : 1. List of Participants | | : 1. List of Participants |
| : 2. Summary of Telephone Conference Call cc: Listserv | | : 2. Summary of Telephone Conference Call cc: Listserv |
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| Issue: The staff noted that the inspection extent for Category A welds, which are subsumed in the RI-ISI, may not be consistent with the guidance provided in GL 88-01 and BWRVIP-75-A since the RI-ISI adopts a risk-based selection process. Therefore, additional information is necessary to confirm whether the program is adequate to manage cracking due to IGSCC for Category A | | Issue: The staff noted that the inspection extent for Category A welds, which are subsumed in the RI-ISI, may not be consistent with the guidance provided in GL 88-01 and BWRVIP-75-A since the RI-ISI adopts a risk-based selection process. Therefore, additional information is necessary to confirm whether the program is adequate to manage cracking due to IGSCC for Category A |
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| welds. Request: 1. Clarify whether the applicant's inspection extent for Category A welds, subsumed in the RI-ISI, is consistent with the guidance in GL 88-01 and BWRVIP-75-A. | | welds. Request: 1. Clarify whether the applicant's inspection extent for Category A welds, subsumed in the RI-ISI, is consistent with the guidance in GL 88-01 and BWRVIP-75-A. |
| : 2. If the inspection extent for Category A welds is different from the guidance in GL 88-01 and BWRVIP-75-A, provide the following information: | | : 2. If the inspection extent for Category A welds is different from the guidance in GL 88-01 and BWRVIP-75-A, provide the following information: |
| : a. Clarification as to why the inspection extent for Category A welds is not identified as a program exception. | | : a. Clarification as to why the inspection extent for Category A welds is not identified as a program exception. |
| : b. Justification for why the program is adequate to manage the aging effect of IGSCC for Category A welds, and an assessment of plant-specific operating experience to support the justification. Teleconference Summary | | : b. Justification for why the program is adequate to manage the aging effect of IGSCC for Category A welds, and an assessment of plant-specific operating experience to support the justification. Teleconference Summary |
| : The staff clarified a question regarding the extent of the information being requested. The applicant agreed to provide the requested information as written. DRAI B.2.1.7-2: | | : The staff clarified a question regarding the extent of the information being requested. The applicant agreed to provide the requested information as written. DRAI B.2.1.7-2: |
Letter Sequence RAI |
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TAC:MF5346, Control Room Habitability (Approved, Closed) TAC:MF5347, Control Room Habitability (Approved, Closed) |
Results
Other: ML15104A782, ML15196A045, ML15196A115, ML16202A033, RS-15-193, Responds to NRC Requests for Additional Information, Set 5, Dated July 7, 2015 Related to the License Renewal Application, RS-15-194, Responds to NRC Requests for Additional Information, Set 6, Dated July 7, 2015 Related to the License Renewal Application, RS-15-305, Corrections to the License Renewal Application Dated December 9, 2014, RS-15-306, Submittal of 10 CFR 54.21(b) Annual Amendment to the License Renewal Application, RS-16-033, Update to Commitment 47 Related to the License Renewal Application, RS-16-068, Comments on the Safety Evaluation Report with Open Items, Related to the License Renewal Application, RS-16-128, Second 10 CFR 54.21(b) Annual Amendment to the License Renewal Application
|
MONTHYEARML15104A7822015-05-0808 May 2015 Scoping and Screening Methodology Audit Report Regarding LaSalle County Station, Units 1 and 2 Project stage: Other ML15111A1372015-05-14014 May 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 1 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15125A1982015-05-29029 May 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 2 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15131A4132015-06-0808 June 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 3 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15140A1922015-06-0808 June 2015 Summary of Telephone Conference Call Held on May 13, 2015, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Co., LLC, Concerning Requests for Additional Information, Set 2 Pertaining to the Lasalle County Station License Project stage: RAI ML15146A2622015-06-19019 June 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application-Set 4 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-165, Response to NRC Requests for Additional Information, Set 2, Dated May 29, 2015 Related to the License Renewal Application2015-06-25025 June 2015 Response to NRC Requests for Additional Information, Set 2, Dated May 29, 2015 Related to the License Renewal Application Project stage: Response to RAI RS-15-171, Response to NRC Requests for Additional Information, Set 3, Dated June 8, 2015, Related to the License Renewal Application2015-07-0101 July 2015 Response to NRC Requests for Additional Information, Set 3, Dated June 8, 2015, Related to the License Renewal Application Project stage: Response to RAI ML15159A9002015-07-0606 July 2015 Telephone Conference Call Held on May 20, 2015, Between the U.S. Nuclear Regulatory Commission and Exelon Generation Co., LLC, Requests for Additional Information, Set 3 Pertaining to the LaSalle County Station License Renewal Application ( Project stage: RAI ML15163A0712015-07-0707 July 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 6 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15159A2082015-07-0707 July 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 5 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-180, Response to NRC Requests for Additional Information, Set 4, Dated June 19, 2015 Related to the License Renewal Application2015-07-15015 July 2015 Response to NRC Requests for Additional Information, Set 4, Dated June 19, 2015 Related to the License Renewal Application Project stage: Response to RAI RS-15-198, Request for Schedule Change Related to Advisory Committee on Reactor Safeguards (ACRS) Subcommittee Review of License Renewal Application (TAC Nos. MF5347 and MF5346)2015-07-16016 July 2015 Request for Schedule Change Related to Advisory Committee on Reactor Safeguards (ACRS) Subcommittee Review of License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: Request ML15196A5292015-07-27027 July 2015 Requests for Additional Information for the Review of the Lasalle County Station, Units 1 and 2 License Renewal Application - Set 7 (Tac Nos. MF5347 and MF5346) Project stage: RAI RS-15-194, Responds to NRC Requests for Additional Information, Set 6, Dated July 7, 2015 Related to the License Renewal Application2015-08-0606 August 2015 Responds to NRC Requests for Additional Information, Set 6, Dated July 7, 2015 Related to the License Renewal Application Project stage: Other RS-15-193, Responds to NRC Requests for Additional Information, Set 5, Dated July 7, 2015 Related to the License Renewal Application2015-08-0606 August 2015 Responds to NRC Requests for Additional Information, Set 5, Dated July 7, 2015 Related to the License Renewal Application Project stage: Other ML15204A6302015-08-18018 August 2015 Requests for Additional Information for the Review of the LaSalle County Station Units 1 & 2 License Renewal Application - Set 9 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-223, Response to NRC Requests for Additional Information, Set 7, Dated July 27, 2015; and a Correction to Information Associated with the Set 2 Response to RAI 8.2.1.20-2, Related to the Renewal Application2015-08-26026 August 2015 Response to NRC Requests for Additional Information, Set 7, Dated July 27, 2015; and a Correction to Information Associated with the Set 2 Response to RAI 8.2.1.20-2, Related to the Renewal Application Project stage: Response to RAI ML15229A0192015-08-27027 August 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 10 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15217A5412015-08-28028 August 2015 June 9, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 5 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15217A5642015-08-28028 August 2015 June 3, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 4 Pertaining to the LaSalle County Station License Renewal Application (Tac Nos. MF5347 and MF5346) Project stage: RAI ML15217A5752015-08-28028 August 2015 June 10, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 4 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15219A2772015-08-28028 August 2015 June 23, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 6 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15222A0062015-08-28028 August 2015 August 5, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 9 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15195A3382015-08-28028 August 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application-Set 8 (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15222A0082015-08-28028 August 2015 July 22, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 8 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15222A0152015-08-28028 August 2015 July 8, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 7 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15224A9352015-08-28028 August 2015 August 11, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 9 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15244B3532015-09-14014 September 2015 RAI for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 11 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-232, Response to NRC Requests for Additional Information, Set 9, Dated August 18, 2015 Related to the License Renewal Application2015-09-15015 September 2015 Response to NRC Requests for Additional Information, Set 9, Dated August 18, 2015 Related to the License Renewal Application Project stage: Response to RAI RS-15-238, Response to NRC Requests for Additional Information, Set 10, Dated August 27, 2015 Related to License Renewal Application2015-09-17017 September 2015 Response to NRC Requests for Additional Information, Set 10, Dated August 27, 2015 Related to License Renewal Application Project stage: Response to RAI ML15196A1152015-09-22022 September 2015 Aging Management Programs Audit Report Regarding Lasalle County Station, Units 1 and 2, Project stage: Other ML15196A0452015-09-22022 September 2015 Aging Management Programs Audit Report Regarding Lasalle County Station, Units 1 and 2, (TAC Nos. MF5347 and MF5346). Cover Letter Project stage: Other RS-15-239, Response to NRC Requests for Additional Information, Set 8, Dated August 28, 2015 Related to the License Renewal Application2015-09-28028 September 2015 Response to NRC Requests for Additional Information, Set 8, Dated August 28, 2015 Related to the License Renewal Application Project stage: Response to RAI RS-15-256, Response to NRC Request for Additional Information, Set 11, Dated September 14, 2015 Related to the License Renewal Application2015-10-0808 October 2015 Response to NRC Request for Additional Information, Set 11, Dated September 14, 2015 Related to the License Renewal Application Project stage: Response to RAI ML15208A0522015-10-22022 October 2015 Schedule Revision for the Review of the Lasalle County Station License Renewal Application (TAC Nos. MF5347 & MF5346) Project stage: Approval ML15271A0212015-10-23023 October 2015 Requests for Additional Information for the Review of the Lasalle County Station, Units 1 and 2 License Renewal Application-Set 12 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-281, Response to NRC Requests for Additional Information, Set 12, Dated October 23, 2015 Related to the License Renewal Application2015-10-29029 October 2015 Response to NRC Requests for Additional Information, Set 12, Dated October 23, 2015 Related to the License Renewal Application Project stage: Response to RAI ML15300A3662015-11-0303 November 2015 Requests for Additional Information for the Review of the LaSalle County Station, Units 1 and 2 License Renewal Application - Set 13 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-15-305, Corrections to the License Renewal Application Dated December 9, 20142015-12-0202 December 2015 Corrections to the License Renewal Application Dated December 9, 2014 Project stage: Other RS-15-306, Submittal of 10 CFR 54.21(b) Annual Amendment to the License Renewal Application2015-12-0202 December 2015 Submittal of 10 CFR 54.21(b) Annual Amendment to the License Renewal Application Project stage: Other RS-15-292, Response to NRC Requests for Additional Information, Set 13, Dated November 3, 2015 Related to the License Renewal Application2015-12-10010 December 2015 Response to NRC Requests for Additional Information, Set 13, Dated November 3, 2015 Related to the License Renewal Application Project stage: Response to RAI ML15272A4002015-12-11011 December 2015 Summary of Teleconference Held on September 24, 2015, Between the NRC and Exelon Generation Co., LLC, Concerning RAI Set 10 Response Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) Project stage: RAI ML15301A1892015-12-14014 December 2015 Request for Additional Information for the Review of the LaSalle County Station, Units 1 & 2 License Renewal Application - Set 14 (TAC Nos. MF5347 and MF5346) Project stage: RAI RS-16-003, Responses to NRC Requests for Additional Information, Set 14, Dated December 14, 2015, and Two Additional Commitment Implementation Schedule Clarifications, Related to the License Renewal Application2016-01-0707 January 2016 Responses to NRC Requests for Additional Information, Set 14, Dated December 14, 2015, and Two Additional Commitment Implementation Schedule Clarifications, Related to the License Renewal Application Project stage: Response to RAI ML15357A2812016-01-0707 January 2016 Summary of Teleconference Held on December 22, 2015, Between the NRC and Exelon Generation Co., LLC, Concerning the LaSalle County Station License Renewal Application (Tac Nos. MF5347 and MF5346) Project stage: Meeting RS-16-007, Supplemental Information Associated with Implementation of BWRVIP-25, Core Plate Inspection and Flaw Evaluation Guidelines, Related to the License Renewal Application2016-01-14014 January 2016 Supplemental Information Associated with Implementation of BWRVIP-25, Core Plate Inspection and Flaw Evaluation Guidelines, Related to the License Renewal Application Project stage: Supplement ML16021A3252016-01-29029 January 2016 Summary of Teleconference Held on January 21, 2016, Between the NRC and Exelon Generation Co., LLC, Concerning RAI 4.2.10-1 Response Project stage: RAI RS-16-033, Update to Commitment 47 Related to the License Renewal Application2016-02-0101 February 2016 Update to Commitment 47 Related to the License Renewal Application Project stage: Other ML15344A3542016-02-16016 February 2016 Requests for Additional Information for the Review of the Lasalle County, Units 1 and 2 License Renewal Application Set 15 (TAC Nos. MF5347 and MF5346) Project stage: RAI 2015-07-16
[Table View] |
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Category:Meeting Summary
MONTHYEARML23320A2472023-11-17017 November 2023 Constellation - Summary of November 14, 2023, Public Pre-Application Meeting with Constellation Energy Generation, LLC on Adoption of TSTF-591 ML23263B1062023-09-22022 September 2023 R. E. Ginna Nuclear Power Plant - Constellation - Pre-Application Amse 9/18/2023 Meeting Summary ML23234A2342023-08-29029 August 2023 Summary of August 18, 2023, Meeting with Constellation Energy Generation, LLC, Related to the LAR to Relocate Pressure and Temperature Limit Curves to the Pressure and Temperature Limits Report ML23173A0072023-06-22022 June 2023 Summary of the Public Outreach to Discuss the NRC 2022 End-of-Cycle Plant Performance Assessment of LaSalle County Station, Units 1 and 2 ML23055A0352023-03-24024 March 2023 Summary of February 23, 2023, with Constellation Energy Generation, LLC on Proposed Changes to Emergency Plans to Revise Emergency Action Levels ML22318A1712022-11-16016 November 2022 Summary of Meeting with Constellation Energy Generation, LLC, Related to the Planned Amendment to Revise the Design Basis for Certain Suppression Pool Structures and Components ML22140A2912022-05-23023 May 2022 Summary of Public Outreach to Discuss the NRC 2021 End-Of-Cycle Plant Performance Assessment of Clinton, Unit 1, and Lasalle, Units 1 and 2 ML21333A1532021-11-30030 November 2021 Summary of November 16, 2021, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alternative to Extend the Inservice Inspection Interval ML21181A0582021-10-15015 October 2021 Summary of Public Closed Meeting with Exelon Generation Company, LLC Regarding Proprietary Information Marking in the LAR Associated with Transition to New Fuel at Lasalle County Station, Units 1 and 2 ML21237A0412021-08-30030 August 2021 Summary of the July 27, 2021, Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Use Case OMN-28, ML21195A3932021-07-14014 July 2021 June 30, 2021, Summary of Public Outreach to Discuss the NRC 2020 End-Of-Cycle Plant Performance Assessment of Clinton Power Station, Unit 1, and Lasalle County Station, Units 1 & 2 ML21187A2992021-07-0808 July 2021 Summary of May 27, 2021 Public Pre-Submittal Webinar with Exelon Generation Company, LLC Regarding Proposed License Amendment Requests Associated with Transition to New Fuel at LaSalle County Station, Units 1 and 2 and Quad Cities Nuclear P ML21176A0822021-07-0606 July 2021 June 15, 2021, Summary of Meeting with Exelon Generation Company, LLC Vessel Nozzle Repair Related to a Planned Request for an Alternative Related to Reactor Pressure ML21139A1852021-06-22022 June 2021 Summary of Meeting with Exelon Generation Company, LLC Regarding Its Requested Alternative to Eliminate Certain Documentation Requirements for the Replacement of Pressure Retaining Bolting ML21011A2822021-01-21021 January 2021 Summary of January 6, 2021, Presubmittal Meeting Between the NRC and Exelon Generation Company, LLC Regarding Licensing Activities to Support the Planned Early Closures of Byron, Unit Nos. 1 and 2 and Dresden, Units 2 and 3 ML20351A2832020-12-18018 December 2020 Summary of Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Exemption to Reduce the Frequency of Updates to Its Inservice Testing and Inspection Programs ML20342A3522020-12-10010 December 2020 Summary of November 13, 2020, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alterantive to Certain Documentation Requirements for the Replacement of Pressure Retaining Bolting (EPID-L-2020-LRM-0102) ML20323A0332020-12-0101 December 2020 Summary of November 4, 2020, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alternative to Reduce the Frequency of Updates to Its Inservice Testing and Inspection Programs ML20239A8322020-08-25025 August 2020 Summary of the August 4, 2020 Public Webinar to Discuss the NRC 2019 End-of-Cycle Plant Performance Assessment of LaSalle County Station, Units 1 and 2 ML20016A2282020-01-27027 January 2020 Summary of Teleconference Meeting with Exelon Generation Company, Lasalle County Station, Units 1 and 2 on Pre-Application Teleconference on License Amendment Requests on TSTF-505, 10 CFR 50.69 ML19326A3152019-12-0303 December 2019 Summary of November 18, 2019, Meeting with Exelon Generation Company, LLC Regarding a Planned Request for an Alternative to Supplemental Valve Position Indication Testing Requirements ML19326C3582019-12-0303 December 2019 Summary of November 20, 2019, Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Revise the Quality Assurance Program ML19162A0272019-06-21021 June 2019 Summary of June 4, 2019, Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Extend the Test Interval for Safety Relief Valves ML20108F0902019-04-20020 April 2019 April 15, 2020, Meeting Summary with Exelon Generation Company, LLC Regarding Planned Request to Defer Submittal of Owner'S Activity Report (Braidwood 2,Byron 2,Calvert Cliffs 1, LaSalle 1, Limerick 1, Nine Mile Point 2, Quad 2, R. E. Ginna ML19036A8832019-02-0707 February 2019 Summary of Meeting with Exelon Generation Company, LLC Regarding a Planned Request to Use ASME Code Case N-879 ML18354B1712019-01-0202 January 2019 Summary of December 19, 2018, Meeting with Exelon Generation Company, LLC Regarding the Use of Boiling Water Reactor Vessel and Internals Project Guidelines ML18325A1712018-11-28028 November 2018 Summary of Meeting with Exelon Generation Company, LLC Regarding Planned Fleet License Amendment Request to Revise Technical Specifications for High Radiation Areas ML18297A1722018-10-26026 October 2018 Summary of Meeting with Exelon Generation Company, LLC Regarding Planned License Amendment Request to Adopt TSTF-427 ML18145A2982018-05-25025 May 2018 Summary of 2018 Public Outreach to Discuss the NRC 2017 End-Of-Cycle Plant Performance Assessment of LaSalle County Station, Units 1 and 2 ML18120A1772018-05-0101 May 2018 Summary of Meeting with Exelon Generation Company, LLC Regarding Draft Guidance for Emergency Response Organization Staffing ML18065A8362018-03-0707 March 2018 Summary of February 27, 2018, Meeting with Exelon Generation Company, LLC Planned Fleet License Amendment Request to Relocate Staff Qualification Requirements from TSs to the Quality Assurance Topical Report ML18058A5232018-03-0101 March 2018 Summary of February 26, 2018, Meeting with Exelon Generation Company, LLC Regarding Proposed Alternative to the Main Steam Isolation Valve Testing Requirements ML17355A0572018-01-0202 January 2018 Summary of December 7, 2017, Public Meeting with Exelon Generation Company, LLC, Regarding a Proposed License Amendment Request ML17347B1022017-12-14014 December 2017 Summary of Meeting with Exelon Generation Company, LLC on Its Planned Fleet License Amendment Request to Revise the Minimum Staffing Requirements for Emergency Response ML17184A0092017-07-10010 July 2017 Summary of June 29, 2017, Meeting with Exelon Generation Company, LLC, on Proposed Changes to Emergency Plans to Revise Emergency Action Levels (CAC Nos. MF9779-MF9801) ML17129A3372017-05-0808 May 2017 Summary of Open House Public Meeting to Discuss NRC 2016 End-Of-Cycle Performance Assessment of LaSalle County Station, Units 1 and 2 ML16228A0622016-08-15015 August 2016 Summary of July 26, 2016, Public Meeting on Status of Associated Effects Submittals Related to the Reevaluated Flood Hazards at Exelon Generation Company, LLC Sites as Part of the Response to Near-Term Task Force Recommendation 2.1, Floodin ML16202A0582016-07-27027 July 2016 Summary of Meeting with LaSalle County Station, Units 1 and 2, on Pre-Application for Amendment Regarding Suppression Pool Swell ML16183A2832016-07-0808 July 2016 Summary of 06/27/2016 Telephone Conference Call Between NRC and Exelon Generation Co., LLC Concerning Draft Request for Additional Information Pertaining to the LaSalle County Station License Renewal Application (TAC MF5347 & TAC MF5346) ML16166A1892016-06-13013 June 2016 Summary of June 7, 2016, Open House Public Meeting to Discuss NRC Activities, Nuclear Power Issues, and 2015 End-of-Cycle Performance Assessment of LaSalle County Station, Units 1 and 2 ML16085A3292016-04-0606 April 2016 Summary of March 22, 2016, Meeting with Exelon Generation Company, LLC, on Proposed License Amendment Request to Adopt ANSI 3.1-2014 Operating Training Standards ML16088A1112016-04-0101 April 2016 March 22, 2016, Summary of Category 3 Public Meeting LaSalle Dseis ML16040A2182016-02-11011 February 2016 January 21, 2016, Summary of Meeting with Exelon Generation Company, LLC Licensing Managers ML16021A3252016-01-29029 January 2016 Summary of Teleconference Held on January 21, 2016, Between the NRC and Exelon Generation Co., LLC, Concerning RAI 4.2.10-1 Response ML15357A2812016-01-0707 January 2016 Summary of Teleconference Held on December 22, 2015, Between the NRC and Exelon Generation Co., LLC, Concerning the LaSalle County Station License Renewal Application (Tac Nos. MF5347 and MF5346) ML15272A4002015-12-11011 December 2015 Summary of Teleconference Held on September 24, 2015, Between the NRC and Exelon Generation Co., LLC, Concerning RAI Set 10 Response Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) ML15217A5642015-08-28028 August 2015 June 3, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 4 Pertaining to the LaSalle County Station License Renewal Application (Tac Nos. MF5347 and MF5346) ML15224A9352015-08-28028 August 2015 August 11, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 9 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) ML15222A0152015-08-28028 August 2015 July 8, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 7 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) ML15222A0082015-08-28028 August 2015 July 22, 2015, Summary of Telecon Held Between the NRC and Exelon Generation Co., LLC, Concerning Request for Additional Information Set 8 Pertaining to the LaSalle County Station License Renewal Application (TAC Nos. MF5347 and MF5346) 2023-09-22
[Table view] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 June 8, 2015
LICENSEE: Exelon Generation Co., LLC
FACILITY: LaSalle County Station, Units 1 and 2
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE CALL HELD ON MAY 13, 2015, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION CO., LLC, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION, SET 2 PERTAINING TO THE LASALLE COUNTY STATION LICENSE RENEWAL APPLICATION (TAC NOS. MF5347 AND MF5346)
The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Co., LLC (Exelon or the applicant) held a telephone conference call on May 13, 2015, to discuss and clarify the staff's draft requests for additional information (DRAIs) provided in Enclosure 2 concerning the LaSalle County Station, Units 1 and 2, license renewal application. The telephone conference call was useful in clarifying the intent of the staff's DRAIs. provides a listing of the participants and Enclosure 2 contains the DRAIs discussed with the applicant, including a brief description on the status of the items.
The applicant had an opportunity to comment on this summary.
Sincerely,
/RA/ Jeffrey S. Mitchell, Project Manager Projects Branch 1 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-373 and 50-374
Enclosures:
- 1. List of Participants
- 2. Summary of Telephone Conference Call cc: Listserv
ML15140A192
- Concurred via e-mail OFFICE LA:DLR PM:RPB1:DLR PM:RPB1:DLR BC:RPB1:DLR PM:RPB1:DLR NAME YEdmonds JMitchell RPlasse YDiaz-Sanabria JMitchell DATE 6/ 4 /15 6/ 4 /15 6/ 4 /15 6/ 5 /15 6/ 8 /15
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE CALL HELD ON MAY 13, 2015, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION CO., LLC, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION, SET 2 PERTAINING TO THE LASALLE COUNTY STATION LICENSE RENEWAL APPLICATION (TAC NOS. MF5347 AND MF5346)
DISTRIBUTION
E-MAIL: PUBLIC RidsNrrDlr Resource
RidsNrrDlrRpb1 Resource
RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource
RidsNrrDlrRsrg Resource RidsNrrPMLaSalle Resource ---------------
J. Mitchell
R. Plasse
D. Drucker
B. Wittick J. Wachutka, OGC D. McIntyre, OPA M. Kunowski, RIII V. Mitlyng, RIII P. Chandrathil, RIII
H. Logaras, RIII C. Lipa, RIII S. Sheldon, RIII
R. Ruiz, RIII J. Robbins, RIII ENCLOSURE 1 TELEPHONE CONFERENCE CALL LASALLE COUNTY STATION, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS MAY 13, 2015
PARTICIPANTS AFFILIATION Jeffrey Mitchell U.S. Nuclear Regulatory Commission (NRC) Seung Min NRC Bill Holston NRC Chris Wilson Exelon Generation Co., LLC (Exelon)
John Hufnagel Exelon Shannon Rafferty-Czincila Exelon Pete Tamburro Exelon Mark Miller Exelon Jim Jordan Exelon Paul Weyhmuller Exelon
ENCLOSURE 2
SUMMARY
OF TELEPHONE CONFERENCE CALL LASALLE COUNTY STATION, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION MAY 13, 2015 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Co., LLC (Exelon or the applicant) held a telephone conference call on May 13, 2015, to discuss and clarify the following draft requests for additional information (DRAIs) concerning the LaSalle County Station (LSCS), Units 1 and 2 license renewal application (LRA). DRAI B.2.1.7-1
Background
- Generic Aging Lessons Learned (GALL) Report aging management program (AMP) XI.M7, "BWR Stress Corrosion Cracking," states that the program to manage intergranular stress corrosion cracking (IGSCC) in BWR coolant pressure boundary piping is delineated in NUREG-0313, Revision 2 and NRC Generic Letter (GL) 88-01 with its Supplement 1. The "detection of aging effects" program element of GALL Report AMP XI.M7 also states that modifications of the extent and schedule of inspection in NRC GL 88-01 are allowed in accordance with the inspection guidance in staff-approved BWRVIP-75-A. LRA Section B.2.1.7 states that the BWR Stress Corrosion Cracking AMP is consistent with GALL Report AMP XI.M7. The LRA also states that hydrogen water chemistry and noble metals chemical addition have been implemented to further reduce susceptibility of piping systems exposed to reactor coolant to stress corrosion cracking. The LRA further indicates that welds classified as Category A (resistant materials) are subsumed into the Risk-Informed Inservice Inspec tion (RI-ISI) program in accordance with staff-approved EPRI Topical Report TR-112657, Revision B-A, Final Report, "Revised Risk-Informed Inservice Inspection Evaluation Procedure," dated December 1999. During the audit, the staff noted that LSCS implemented risk-informed inservice inspection for the current (third) inservice inspection interval through the relief request process as approved in the NRC letter dated April 29, 2008 (ADAMS Accession No. ML080940215).
Issue: The staff noted that the inspection extent for Category A welds, which are subsumed in the RI-ISI, may not be consistent with the guidance provided in GL 88-01 and BWRVIP-75-A since the RI-ISI adopts a risk-based selection process. Therefore, additional information is necessary to confirm whether the program is adequate to manage cracking due to IGSCC for Category A
welds. Request: 1. Clarify whether the applicant's inspection extent for Category A welds, subsumed in the RI-ISI, is consistent with the guidance in GL 88-01 and BWRVIP-75-A.
- 2. If the inspection extent for Category A welds is different from the guidance in GL 88-01 and BWRVIP-75-A, provide the following information:
- a. Clarification as to why the inspection extent for Category A welds is not identified as a program exception.
- b. Justification for why the program is adequate to manage the aging effect of IGSCC for Category A welds, and an assessment of plant-specific operating experience to support the justification. Teleconference Summary
- The staff clarified a question regarding the extent of the information being requested. The applicant agreed to provide the requested information as written. DRAI B.2.1.7-2:
Background
- LRA Section B.2.1.7 states that LaSalle's BWR Stress Corrosion Cracking AMP is consistent with GALL Report AMP XI.M7, "BWR Stress Corrosion Cracking." GALL Report AMP XI.M7, "BWR Stress Corrosion Cracking," states that the program to manage IGSCC in BWR coolant pressure boundary piping is delineated in NUREG-0313, Revision 2 and NRC GL 88-01 with its Supplement 1. The "detection of aging effects" program element of GALL Report AMP XI.M7 also states that modifications of the extent and schedule of inspection in NRC GL 88-01 are allowed in accordance with the inspection guidance in staff-approved BWRVIP-75-A. GL 88-01 Category B and C welds are made of non-resistant materials to IGSCC. A stress improvement process was applied on Category B welds and Category C welds within the first 2 years of operation and after the first 2 years of operation, respectively. During the audit, the staff noted that the following onsite document describes inspection schedules and selections for Category B and C welds during the third 10 year inspection interval.
- LaSalle County Nuclear Power Station Units 1 & 2 ISI Selection Document Third Ten-Year Inspection Interval, Revision 1, March 31, 2011.
Issue: The staff also noted that the referenced onsite document indicates that inspection selections for Unit 2 Categories B and C welds are as follows:
- For Unit 2 Category B welds, the number of welds to be inspected in accordance with BWRVIP-75-A (i.e., 25 percent every 10 years) is 33.5; however, the number of welds selected for inspection is only 25.
- For Unit 2 Category C welds, the number of welds to be inspected in accordance with BWRVIP-75-A (i.e., 25 percent every 10 years) is two; however, the number of welds selected for inspection is only one.
The inspection plan for the third 10-year interval indicates that in each of Categories B and C the number of welds selected for inspection at Unit 2 is less than that to be inspected in accordance with BWRVIP-75-A. Therefore, additional information is necessary to confirm the consistency of the program with GALL Report AMP XI.M7.
Request: 1. Provide justification as to why the inspection plan indicates that the number of Category B welds selected for inspection at LSCS, Unit 2 is less than that to be inspected in accordance with BWRVIP-75-A. In addition, justify why the number of Category C welds selected for inspection at Unit 2 is less than that to be inspected in accordance with BWRVIP-75-A. If the numbers chosen for inspection cannot be justified, adjust the inspection extents for Categories B and C welds in accordance with BWRVIP-75-A. 2. Discuss whether the applicant's inspections indicated occurrence of IGSCC in Category B or C welds at LSCS in order to confirm that the plant-specific operating experience supports the adequacy of the inspection frequency and scope. Teleconference Summary
- The staff clarified a question regarding the second paragraph under the "Request" section. The staff clarified the intent of the request and indicated that the second paragraph under the "Request section" would be revised to be more clear in the final RAI. DRAI B.2.1.7-3:
Background
- LRA Section B.2.1.7 states that the BWR Stress Corrosion Cracking AMP is consistent with GALL Report AMP XI.M7, "BWR Stress Corrosion Cracking." The "detection of aging effects" program element of GALL Report AMP XI.M7 indicates that the inspection extent and schedule
are described in NRC GL 88-01 and modifications of the inspection extent and schedule are allowed in accordance with the staff-approved BWRVIP-75-A. GL 88-01 indicates that examinations perfo rmed under the scope of GL 88-01 should comply with the applicable Edition and Addenda of the ASME Code,Section XI, as specified in paragraph (g), "Inservice Inspection Requirements" of 10 CFR 50.55a, "Codes and Standards,"
or as otherwise approved by the NRC. In addition, Information Notice No. 98-42, "Implementation of 10 CFR 50.55a(g) Inservice Inspection Requirements," indicates that "essentially 100 percent" of the required examination volume for inservice inspections is defined as more than 90 percent of the specified examination volume.
Issue: The staff noted that the following inservice inspection summary report for LSCS Unit 2 indicates that the examination coverage of the BWRVIP-75-A inspections on Category B welds was as low as 50 percent.
- Table B of Post-Outage 90-Day ISI Summary Report, May 31, 2013 (ADAMS Accession No. ML13151A451) The staff needs additional information to determine whether the limited examination coverage of the inspections is adequate to manage cracking due to IGSCC for the welds within the scope of
the program.
Request: 1. Provide the average examination coverage of each weld category (i.e., each of Categories A through G) for each unit in order to characterize the overall degree of limited examination coverage. In addition, explain why the examination coverage is limited. 2. Justify why the program is adequate to manage cracking due to IGSCC without additional inspections that will compensate for the limited examination coverage of each weld category during an inspection period (e.g., every 10 years for Category B welds). Teleconference Summary
- The staff clarified questions regarding the scope of the examination coverage information being requested. The applicant agreed to provide the current planned actions from the Corrective Actions Program and the latest examination results in the response to the final RAI. DRAI 3.0.3.3.1-2:
Background
- LRA Section B.2.2.1 states that internal coating inspections may be omitted if the degradation of coatings cannot result in downstream effects; however, inspections are conducted if corrosion rates or inspection intervals have been based on the integrity of the coatings. LRA Section B.2.2.1 further states that as an alternative to direct internal visual inspection of the coatings, external wall thickness measurements can be performed to confirm the acceptability of the corrosion rate of the base metal. The final GALL Report AMP XI.M42 recommends a periodicity and size of inspection for alternative wall thickness measurements, which was not included in the draft GALL Report AMP XI.M42 provided in draft LR-ISG-2013-01, "Aging Management of Loss of Coating Integrity for Internal Service Level III (augmented) Coatings." Specifically, the AMP recommends that wall thickness measurements be conducted on a representative sample of components every 10 years, commencing 10 years prior to the period of extended operation.
A representative sample size is 25 percent of accessible external surfaces for heat exchangers, strainers, and tanks; and for piping, 73 1-foot axial length circumferential segments. In addition, the final AMP XI.M42 recommends that the inspection grid size be the same as that for flow accelerated corrosion inspections.
Issue: LRA Section B.2.2.1 does not state the periodicity and size of inspection for alternative wall thickness measurements.
Request: State the periodicity and size of inspection for alternative wall thickness measurements.
Teleconference Summary
- The staff clarified a question regarding whether the RAI is requesting information beyond that discussed in the Interim Staff Guidance (ISG). The applicant agreed to provide a response to this request that is in accordance with the ISG.