Letter Sequence Meeting |
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TAC:ME7522, Clarify Application of Setpoint Methodology for LSSS Functions (Open) TAC:ME7523, Clarify Application of Setpoint Methodology for LSSS Functions (Open) TAC:ME8517, Clarify Application of Setpoint Methodology for LSSS Functions (Open) TAC:ME8518, Clarify Application of Setpoint Methodology for LSSS Functions (Open) |
Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance
- Supplement
Administration
- Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance
- Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, ... further results|Meeting]]
Results
Other: ML120250079, ML120590119, ML12276A050, ML13018A149, ML13024A105, ML13029A667, ML13101A278, ML13192A314, ML13232A258, ML13232A263, ML13339A428, ML15103A010, ML15121A310, ML15223A968
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MONTHYEARML11279A1602011-09-27027 September 2011 Submittal of WNA-DS-02442-PGE, Rev. 2, Diablo Canyon Units 1 and 2 Process Protection System Replacement Project, Advanced Logic System (Als) - System Requirements Specification Project stage: Request DCL-11-104, Attachment 1: List of Regulatory Commitments2011-10-26026 October 2011 Attachment 1: List of Regulatory Commitments Project stage: Request ML1200602142012-01-0606 January 2012 Notice of Forthcoming Meeting in San Luis Obispo, CA, with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System of RPS and ESFAS Project stage: Meeting ML1202500792012-01-18018 January 2012 Project Plan for Diablo Canyon Digital Upgrade of Process Protection System LAR Review Project stage: Other ML1202500572012-01-18018 January 2012 Meeting Slides Process Protection System Replacement LAR Acceptance Review Meeting Presentation Project stage: Meeting ML1204006512012-02-21021 February 2012 Summary of Meeting in San Luis Obispo, CA, with Pacific Gas and Electric; Discuss Digital Replacement of Process Protection System of Reactor Protection System and Engineered Safety Feature Actuation System at Diablo Canyon, Units 1 and 2 Project stage: Meeting ML1205300782012-02-22022 February 2012 3/7/2012 Notice of Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML1205300742012-02-22022 February 2012 Notice of Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML1205901192012-02-29029 February 2012 Summary of Phone Call with Licensee on Digital Replacement of the Process Protection System Portion of the Reactor Trip System and Engineered Safety Features Actuation System at Diablo Canyon, Units 1 and 2 Project stage: Other ML1207200832012-03-13013 March 2012 4/4/2012 - Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML1207200922012-03-13013 March 2012 4/18/12 Notice of Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML1207200622012-03-20020 March 2012 Summary of 3/7/12 Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting DCL-12-030, Response to Items Contained in NRC Acceptance Review of License Amendment Request for Digital Process Protection System Replacement2012-04-0202 April 2012 Response to Items Contained in NRC Acceptance Review of License Amendment Request for Digital Process Protection System Replacement Project stage: Request ML1209006882012-04-0404 April 2012 3/21/2012 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML1210101022012-04-11011 April 2012 Notice of Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting DCL-12-039, Submittal of V10 Tricon Time Response Calculation for the License Amendment Request for Digital Process Protection System Replacement2012-04-30030 April 2012 Submittal of V10 Tricon Time Response Calculation for the License Amendment Request for Digital Process Protection System Replacement Project stage: Request ML1211505042012-05-0303 May 2012 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12142A2142012-05-24024 May 2012 Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12142A1112012-05-24024 May 2012 Request for Withholding Information from Public Disclosure, 4/10/2012 Affidavit Executed by R. Shaffer, Invensys Operations Management, Maximum Tsap Scan Time Project stage: Withholding Request Acceptance ML12170A8402012-06-0606 June 2012 Attachment 16 to DCL-12-050, PGE-12-52 Np, Westinghouse Input to Diablo Canyon Digital Process Protection System Replacement Uncertainty Calculations Summary Lar. Project stage: Request ML12170A8372012-06-0606 June 2012 Submittal of Phase 2 Documents for the License Amendment Request for Digital Process Protection System Replacement Project stage: Request ML12222A1012012-06-0707 June 2012 Invensys Operations Management Document 993754-1-813, Validation Test Plan, Revision 1, Attachment 6 Project stage: Request ML12222A1002012-06-0707 June 2012 Invensys Operations Management Document 993754-1-802, Software Verification and Validation Plan, Revision 2, Attachment 5 Project stage: Request ML12222A0982012-06-0707 June 2012 Process Protection System Replacement Interface Requirements Specification (Irs), Revision 6, Attachment 3 Project stage: Request ML12151A2582012-06-11011 June 2012 5/16/2012 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12170A0342012-06-18018 June 2012 Notice of Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12170A8662012-06-27027 June 2012 6/13/2012 Summary of Meeting Via Teleconference with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting DCL-12-069, Invensys Operations Management Document 993754-1-906, Software Development Plan, Revision 1, Attachment 72012-07-11011 July 2012 Invensys Operations Management Document 993754-1-906, Software Development Plan, Revision 1, Attachment 7 Project stage: Request ML12177A2312012-07-24024 July 2012 Request for Withholding Information from Public Disclosure, 5/29/2012 Affidavit Executed by Scott Roberts, CS Innovations, LLC on 10 Proprietary Documents Project stage: Withholding Request Acceptance ML12178A1152012-07-24024 July 2012 Request for Withholding Information from Public Disclosure, 5/29/2012 Affidavit Executed by J. Gresham, Westinghouse on 1 Proprietary Document Project stage: Withholding Request Acceptance ML12195A1732012-07-24024 July 2012 Forthcoming Meeting on 8/22/12 with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12193A1412012-07-25025 July 2012 6/28/2012 Summary of Meeting with Pacific Gas and Electric to Discuss Digital Replacement of Process Protection System at Diablo Canyon, Units 1 and 2 and Presubmittal of TSTF-493 Option B License Amendment Request (TAC ME7522-ME7523, ME851 Project stage: Meeting ML12200A1272012-08-0202 August 2012 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12222A0942012-08-0202 August 2012 Submittal of Attachment 1, Quality Assurance Plan and Revised Phase 1 Documents for the License Amendment Request for Digital Process Protection System Replacement and Attachment 8 Affidavit 993754-AFF-38T Project stage: Request ML12208A3642012-08-0707 August 2012 Request for Additional Information, License Amendment Request to Replace Digital Process Protection System for Reactor Protection System and Engineered Safety Features Actuation System Functions Project stage: RAI ML12240A0752012-08-27027 August 2012 Notice of Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting DCL-12-083, Response to Request for Additional Information on License Amendment Request for Digital Process Protection System Replacement2012-09-11011 September 2012 Response to Request for Additional Information on License Amendment Request for Digital Process Protection System Replacement Project stage: Response to RAI ML12242A2562012-09-25025 September 2012 8/22/12 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12275A2962012-10-0202 October 2012 Notice of Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12276A0502012-10-10010 October 2012 Regulatory Audit Plan for 11/13-16/2012 Audit at the Invensys Operations Management Facility in Lake Forest, CA, to Support Digital Replacement of Process Protection System License Amendment Request Project stage: Other ML12228A4042012-10-10010 October 2012 Request for Withholding Information from Public Disclosure, 7/23/2012 Affidavit Executed by R. Shaffer, Invensys Operations Management, for 993754-1-802 R2, 993754-1-813 R1, and 993754-1-906 R1 Project stage: Withholding Request Acceptance ML12284A4452012-10-16016 October 2012 Summary of 9/19/12 Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML13004A4742012-10-24024 October 2012 Document 993754-1-915(NP), Rev. 1, Pacific Gas & Electric Company Nuclear Safety-Related Process Protection System Replacement, Diablo Canyon Power Plant, Safety Analysis. Project stage: Request ML12296A1822012-10-24024 October 2012 Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12297A2432012-10-31031 October 2012 Summary of 10/17/2012 Teleconference Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting DCL-12-120, Submittal of Revised Phases 1 & 2 Documents for License Amendment Request for Digital Process Protection System Replacement2012-11-27027 November 2012 Submittal of Revised Phases 1 & 2 Documents for License Amendment Request for Digital Process Protection System Replacement Project stage: Request ML12338A0932012-12-0404 December 2012 Notice of Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting DCL-12-121, Submittal of Revised Phase 1 and 2 Documents for the License Amendment Request for Digital Process Protection System Replacement2012-12-0505 December 2012 Submittal of Revised Phase 1 and 2 Documents for the License Amendment Request for Digital Process Protection System Replacement Project stage: Request ML12341A1232012-12-19019 December 2012 Summary of Meeting Via Teleconference with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting ML12355A1382012-12-20020 December 2012 1/24/2013 - Notice of Forthcoming Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 Project stage: Meeting 2012-03-20
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Category:Meeting Summary
MONTHYEARML23268A4072023-09-27027 September 2023 Summary of September 19, 2023, Closed Public Meeting with Pacific Gas and Electric Company Regarding Alternative Security Measures for Early Warning System License Amendment Request for Diablo Canyon Nuclear Power Plant, Units 1 and 2 ML23265A1902023-09-26026 September 2023 Meeting Summary: September 13, 2023 Diablo Canyon, Units 1 and 2 License Renewal Application Pre-Application Meeting ML23143A2262023-06-0101 June 2023 May 3, 2023, Summary of Public Meeting to Discuss the End of Cycle Assessment and Pre-Submittal License Renewal Process Overview for Diablo Canyon Power Plant, Units 1 and 2 ML22272A5072022-09-29029 September 2022 Summary of September 27, 2022, Closed Meeting with Pacific Gas and Electric Company Regarding Planned Security Plan Changes for Diablo Canyon Nuclear Power Plant, Units 1 and 2 ML22147A0932022-06-0606 June 2022 2021 Annual Assessment Public Meeting Summary ML22126A0162022-05-0909 May 2022 Summary of April 27, 2022, Closed Teleconference with Pacific Gas and Electric Company Regarding Alternative Security Measures for Early Warning System License Amendment Request for Diablo Canyon Nuclear Power Plant, Units 1 and 2 ML21246A0202021-09-0808 September 2021 Summary of August 30, 2021, Pre-Submittal Teleconference with Pacific Gas and Electric Company Regarding a Post-Shutdown Emergency Plan License Amendment Request for Diablo Canyon Nuclear Power Plant, Units 1 and 2 ML21140A3892021-05-24024 May 2021 Riv Column 1 EOC 2020 Public Meeting Summary ML20332A1802020-12-0101 December 2020 Summary of November 24, 2020, Pre-Submittal Teleconference with Pacific Gas and Electric Company a Permanently Defueled Technical Specification License Amendment Request ML20231A6522020-08-24024 August 2020 Summary of Teleconference with Pacific Gas & Electric Company Regarding an Exigent Amendment Request to Modify Diablo Canyon Power Plant, Units 1 & 2, Technical Specification 3.7.5, Auxiliary Feedwater (AFW) System EPID L-2020-LLA-017 ML20189A2832020-07-0707 July 2020 Summary of Region IV Annual Assessment Public Meeting ML19318F5272019-11-15015 November 2019 Summary of the August 27, 2019, Public Meeting Near the Diablo Canyon Nuclear Power Plant Regarding the Establishment and Operation of Community Advisory Boards ML19196A0742019-07-22022 July 2019 Summary of Meeting with Pacific Gas and Electric Company Regarding Forthcoming Activities Associated with Diablo Canyon Nuclear Power Plant, Units 1 and 2 Planned Decommissioning ML19064B2652019-03-14014 March 2019 Summary of February 28, 2019, Public Meeting with Pacific Gas and Electric Company to Discuss the Proposed Relief Request Concerning Reactor Vessel Internal Visual Examination for the Diablo Canyon Nuclear Power Plant, Units 1 & 2 ML18348A4202018-12-31031 December 2018 Summary of Meeting with Pacific Gas & Electric Co. to Discuss Exemption Request to Withdraw Funds from the Nuclear Decommissioning Trusts to Fund Decommissioning Planning Activities at Diablo Canyon Nuclear Power Plant ML18207A7332018-08-10010 August 2018 Summary of Pre-Licensing Meeting with PG&E Co. to Discuss the Proposed LAR to Implement WCAP-16996-A, Revision 1, Realistic LOCA Evaluation Methodology Applied to the Full Spectrum of Break Sizes at Diablo Canyon ML17198A6032017-07-17017 July 2017 Summary of Annual Assessment Meeting Regarding Diablo Canyon Power Plant 2016 Performance ML16190A1782016-07-0808 July 2016 Summary of Annual Assessment Town Hall Meeting and Public Outreach Regarding Diablo Canyon Power Plant 2015 Performance ML16011A2042016-01-14014 January 2016 Summary of Conference Call on January 7, 2016, Between the U.S. NRC and Pacific Gas and Electric Co. Concerning the Responses to RAI for the Review of the Diablo Canyon Power Plant, Units 1 and 2, License Renewal Application (CAC Nos. MF401 ML15343A1272015-12-24024 December 2015 Summary of Meeting with Pacific Gas and Electric to Discuss Diablo Canyon, Units 1 and 2 Amendment Request to Revise UFSAR for Beacon Power Distribution Monitoring System Methodology and TS 5.6.5 (COLR) Paragon and Nexus Methodologies ML15348A1702015-12-17017 December 2015 Summary of Telephone Conference Call Held Between NRC and Pacific Gas and Electric Co., Concerning the RAI Responses Pertaining to the Diablo Canyon Power Plant LRA Environmental Review ML15280A2842015-10-20020 October 2015 Summary of Meeting with Pacific Gas & Electric to Discuss Diablo Canyon, Units 1 and 2 Request to Adopt National Fire Protection Association NFPA 805, Performance-Based Standard for Fire Protection for LWR Generating Plants (2001 Edition), ML15279A4222015-10-0909 October 2015 Summary of 8/25/15 Meeting with Pacific Gas and Electric to Discuss Diablo Canyon Units 1 and 2 Amendment Request to Adopt Risk-Informed Completion Times, TSTF-505, Revision 1, Provide Risk-Informed Extended Completion Times-RITSTF Initiati ML15275A0942015-10-0707 October 2015 Summary of the Severe Accident Mitigation Alternatives Site Audit Related to the Diablo Canyon Power Plant, Units 1 and 2 License Renewal Review ML15275A1302015-10-0707 October 2015 Summary of the Site Audit Related to the Diablo Canyon Power Plant, Units 1 and 2 License Renewal Environmental Review ML15233A0062015-09-10010 September 2015 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML15233A0052015-09-0909 September 2015 Summary of Meeting with Pacific Gas and Electric to Discuss Diablo Canyon, Units 1 & 2 License Amendment Request to Adopt Risk-Informed Completion Times, TSTF-505, Revision 1, Provide Risk-Informed Extended Completion Times-RITSTF. Initiati ML15233A4912015-09-0101 September 2015 August 5, 2015, Public Scoping Meetings for the Environmental Review of the Diablo Canyon Power Plant, Units 1 and 2 License Renewal Application ML15209A9442015-07-28028 July 2015 June 24, 2015, Summary of Annual Assessment Meeting with Pacific Gas and Electric and Public Open House Regarding Diablo Canyon Power Plant 2014 Performance ML15125A1862015-05-27027 May 2015 April 28, 2015, Summary of Category 1 Public Meeting with Pacific Gas and Electric Company to Discuss Diablo Canyon'S Seismic Hazard Reevaluation Associated with Implementation of Japan Lessons-Learned Near-Term Task Force Recommendation 2. ML15134A2572015-05-18018 May 2015 5/7/15 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML15092A0792015-04-16016 April 2015 July 14-17, 2014 - Summary of Diablo Canyon, Units 1 and 2, Audit to Adopt National Fire Protection Association NFPA 805, Performance-Based Standard for Fire Protection for LWR Generating Plants (2001 Edition) ML15069A0952015-03-24024 March 2015 Summary of Telephone Conference Call Held on March 4, 2015 Between the U.S. Nuclear Regulatory Commission and Pacific Gas and Electric Company Concerning the Diablo Canyon Power Plant, Units 1 and 2, License Renewal Application ML15043A1992015-02-19019 February 2015 2/3/2015 Summary of Meeting with Pacific Gas and Electric Regarding Presubmittal Discussion on Alternate Source Term License Amendment Request for Diablo Canyon Power Plant, Units 1 and 2 ML15037A2482015-02-0505 February 2015 Summary of Regulatory Conference to Discuss Safety Significance of Diablo Canyon Power Plant Protective Action Recommendations for Areas of the Ocean Finding ML14350A2712014-12-22022 December 2014 Summary of 12/11/14 Preapplication Meeting with Pacific Gas and Electric Company to Discuss License Amendment Request to Support Installation of 500 Kilovolt Output Generator Breakers at Diablo Canyon, Units 1 and 2 ML14029A4502014-12-10010 December 2014 Summary of 12/18/13 Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML14295A7332014-11-17017 November 2014 9/24/14 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML14197A3522014-07-22022 July 2014 7/9/14 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML14157A0912014-06-17017 June 2014 Summary of 5/21/14 Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML14155A3742014-06-0404 June 2014 May 22, 2014, Summary of Annual Assessment Meeting with Pacific Gas and Electric Regarding Diablo Canyon Power Plant 2013 Performance ML14113A4932014-05-0606 May 2014 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML14113A4222014-04-23023 April 2014 Public Meeting with Pacific Gas & Electric (Pg&E)To Discuss the Operating Performance for Diablo Canyon Power Plant for the Period January 1 - December 31, 2013 ML13329A4172013-12-30030 December 2013 Summary of Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML13354C0912013-12-23023 December 2013 Summary of Annual Assessment Meeting with Pacific Gas & Electric Re Diablo Canyon Nuclear Power Plant 2012 Performance ML13282A3822013-11-0707 November 2013 10/2/2013 Summary of Pre-Application Meeting with Pacific Gas and Electric Company to Discuss Upcoming Structural Weld Overlay Relief Request to Use an Alternative to Disposition Detected Laminar Indications at Diablo Canyon, Unit 2 ML13269A0042013-10-0808 October 2013 9/24/13 Summary of Pre-Application Meeting to Discuss License Amendment Request for Technical Specification 3.8.1 Diesel Generator Surveillance Requirements at Diablo Canyon, Units 1 and 2 ML13270A2922013-10-0202 October 2013 Summary of 9/26/13 Meeting to Discuss Amendment Request to Adopt Technical Specifications Task Force TSTF-505, Provide Risk-Informed Extended Completion Times, RITSTF Initiative 4B at Diablo Canyon, Units 1 and 2 ML13269A0072013-10-0101 October 2013 Summary of 9/25/13 Pre-Application Meeting to Discuss Emergency Core Cooling System Evaluations for License Amendment Request at Diablo Canyon, Units 1 and 2 ML13266A0882013-09-30030 September 2013 9/18/13 - Summary of Closed Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 2023-09-27
[Table view] Category:Meeting Briefing Package/Handouts
MONTHYEARML24036A3382024-02-0505 February 2024 Environmental Scoping Meeting for the Diablo Canyon License Renewal Application - February 8 Meeting Slides ML24030A4672024-01-30030 January 2024 Environmental Scoping Meeting for the Diablo Canyon License Renewal Application - February 1 Meeting Slides ML23249A1592023-09-13013 September 2023 License Renewal Application Pre-Application Meeting: September 13, 2023 ML23255A0012023-09-13013 September 2023 PG&E Slides for 9/13 Public Meeting Related to Diablo Canyon License Renewal ML23174A0562023-06-26026 June 2023 Slides for TSTF-505 Pre-Submittal Public Teleconference 6-26-2023 ML23143A0882023-05-24024 May 2023 May 24, 2023, Public Meeting Slides Related to Diablo Canyon License Renewal ML23118A0902023-05-0303 May 2023 May 3, 2023, Diablo Public Meeting Slides ML23143A0952023-05-0303 May 2023 May 3, 2023, Diablo Public Meeting Slides for PG&E Presentation ML23079A0452023-03-16016 March 2023 RIC 2023 Slides - Maureen Zawalick TH19 ML22339A1022022-12-0505 December 2022 Pg_E Presentation for NRC Public Meeting ML22200A0712022-07-21021 July 2022 Post-Shutdown Decommissioning Activities Report Public Meeting Slides - July 21, 2022 ML22200A0722022-07-21021 July 2022 PG&E Slides for Post-Shutdown Decommissioning Activities Report Public Meeting, Site-Specific Decommissioning Cost Estimate, and Irradiated Fuel Management Plan - July 21, 2022 ML21223A0842021-08-11011 August 2021 Slides for Post Shutdown EP pre-submittal Public Teleconference 8-30-2021 ML21060B1872020-01-26026 January 2020 Enclosure 3 - 1-26-21 Diablo Canyon Renewal pre-app Meeting Slides ML19165A0092019-06-14014 June 2019 Pre-Submittal Meeting - Presentation Slides ML18333A1092018-11-28028 November 2018 Presentation Slides for Diablo Public Meeting to Discuss Proposed Exemption Request for Decommissioning Funds ML17296A2222017-08-29029 August 2017 Presentation on Reactor Decommissioning for the August 29, 2017 at Congressman Salud Carbajal'S Public Meeting at San Luis Obispo Near Diablo Canyon ML15232A0102015-08-0404 August 2015 Diablo Canyon Power Plant - Risk-Informed Technical Specification Completion Times (TSTF-505) License Amendment Request: August 4, 2015 ML15216A4112015-08-0404 August 2015 TSTF-505: August 4, 2015 Public Meeting ML15216A4082015-08-0404 August 2015 Diablo Canyon Power Plant - Risk-Informed Technical Specification Completion Times (TSTF-505) License Amendment Request: August 4, 2015 ML15209A9442015-07-28028 July 2015 June 24, 2015, Summary of Annual Assessment Meeting with Pacific Gas and Electric and Public Open House Regarding Diablo Canyon Power Plant 2014 Performance ML15202A0982015-07-21021 July 2015 Slides for the August 5, 2015 Diablo Canyon Power Plant License Renewal Application Public Scoping Meeting ML15117A0692015-04-28028 April 2015 Pacific Gas and Electric Co. April 28, 2015, Public Meeting Slides for Diablo Canyon Seismic Hazard Reevaluation ML15117A2262015-04-28028 April 2015 Nuclear Regulatory Commission April 28, 2015, Public Meeting Slides for Diablo Canyon Seismic Hazard Reevaluation ML15035A0062015-02-0404 February 2015 Meeting Presentation, Diablo Canyon Power Plant Process Protection System Replacement Lessons Learned Using ISG 6 NRC Meeting on Digital I&C. ML15029A0942015-02-0303 February 2015 Alternate Source Term Pre- Submittal Meeting on February 3, 2015 (TAC Nos. MF5596 and MF5597). AST LAR NRC Meeting Presentation ML15014A2232015-01-14014 January 2015 Slides Regulatory Conference - January 14, 2015 ML14188A9702014-07-0808 July 2014 14-07-08 ISG-06 Experience Presentation July 8 2014 Digital IC Meeting ML14155A3742014-06-0404 June 2014 May 22, 2014, Summary of Annual Assessment Meeting with Pacific Gas and Electric Regarding Diablo Canyon Power Plant 2013 Performance ML14077A2872014-03-18018 March 2014 Transcript of the 612th ACRS Meeting, March 6, 2014 (Open) Pages 1-317 ML13150A1712013-11-19019 November 2013 1978 - Rhrp Cavitation ML13274A5142013-10-0202 October 2013 License Slides, 10/2/13 Pre-Application Meeting with Pacific Gas and Electric Company to Discuss Upcoming Structural Weld Overlay Relief Request to Use an Alternative to Disposition Detected Laminar Indications at Diablo Canyon, Unit 2 (TAC ML13269A0052013-09-26026 September 2013 Licensee Slides for 9/26/13 Meeting to Discuss Amendment Request to Adopt Technical Specifications Task Force TSTF-505, Provide Risk-Informed Extended Completion Times, RITSTF Initiative 4B ML13268A0022013-09-25025 September 2013 Slide Presentation for 9/25/13 Preapplication Meeting - Use of Leak-before-break for Fuel Structural Analyses and Coolable Geometry ML13268A0052013-09-24024 September 2013 Slide Presentation for 9/24/13 Pre-application Meeting, Diesel Generator License Amendment Request ML13159A0092013-06-0404 June 2013 Notable Failures in Nondustructive Testing - June 4, 2013 Public Meeting ML13066A7402013-03-0707 March 2013 Licensee Slides from 3/7/13 Pre-Application Meeting with Pacific Gas and Electric Company(Tac MF0687 & MF0688) ML13044A7352013-02-12012 February 2013 Licensee Slides from 2/12/13 Public Meeting to Discuss License Amendment Requests for Degraded Voltage Protection and Control Room Dose Analysis of Record at Diablo Canyon, Units 1 and 2 ML13024A4052013-01-24024 January 2013 Licensee Slides from 1/24/13 Meeting to Discuss Offsite Power ML13018A1342013-01-15015 January 2013 Pacific Gas and Electric Handouts from January 15, 2013 Meeting Regarding Pending License Amendment Request Related to Diesel Generator Technical Specifications ML12355A1612012-12-18018 December 2012 PG&E Handouts from the December 18, 2012, Meeting with the NRC Related to Emergency Core Cooling System Evaluations (TAC Nos. MF0313 and MF0315) ML12347A3102012-12-12012 December 2012 Summary of Meeting with Public on Diablo Canyon Power Plant ML12311A0492012-09-18018 September 2012 Part 26 Public Meeting NEI Presentation Slides ML12226A2552012-08-0707 August 2012 License Slides from 8/7/12 Meeting with Pacific Gas and Electric Regarding Future License Amendment Associated with Diesel Generator Technical Specifications ML12193A1412012-07-25025 July 2012 6/28/2012 Summary of Meeting with Pacific Gas and Electric to Discuss Digital Replacement of Process Protection System at Diablo Canyon, Units 1 and 2 and Presubmittal of TSTF-493 Option B License Amendment Request (TAC ME7522-ME7523, ME851 ML12157A2722012-06-11011 June 2012 5/31/2012 Summary of Telephone Conference with Licensees Regarding Near Term Task Force Recommendation 2.1 Seismic Reevaluations - Diablo Canyon, 1 and 2, San Onofre, Units 2 and 3, Columbia Generating Station, and Palo Verde, Units 1, 2, a ML1202500572012-01-18018 January 2012 Meeting Slides Process Protection System Replacement LAR Acceptance Review Meeting Presentation ML1202500792012-01-18018 January 2012 Project Plan for Diablo Canyon Digital Upgrade of Process Protection System LAR Review ML1117205702011-06-20020 June 2011 Licensee Slides from 6/20/11 Pre-Licensing Meeting on Seismic License Amendment Request ML1116405342011-06-0707 June 2011 Slides from Meeting with Pacific Gas and Electric Company Regarding Diablo Canyon Process Protection System Replacement 2024-02-05
[Table view] Category:Slides and Viewgraphs
MONTHYEARML24036A3382024-02-0505 February 2024 Environmental Scoping Meeting for the Diablo Canyon License Renewal Application - February 8 Meeting Slides ML24030A4672024-01-30030 January 2024 Environmental Scoping Meeting for the Diablo Canyon License Renewal Application - February 1 Meeting Slides ML23255A0012023-09-13013 September 2023 PG&E Slides for 9/13 Public Meeting Related to Diablo Canyon License Renewal ML23249A1592023-09-13013 September 2023 License Renewal Application Pre-Application Meeting: September 13, 2023 ML23174A0562023-06-26026 June 2023 Slides for TSTF-505 Pre-Submittal Public Teleconference 6-26-2023 ML23143A0882023-05-24024 May 2023 May 24, 2023, Public Meeting Slides Related to Diablo Canyon License Renewal ML23118A0902023-05-0303 May 2023 May 3, 2023, Diablo Public Meeting Slides ML23143A0952023-05-0303 May 2023 May 3, 2023, Diablo Public Meeting Slides for PG&E Presentation ML23079A0452023-03-16016 March 2023 RIC 2023 Slides - Maureen Zawalick TH19 ML22339A1022022-12-0505 December 2022 Pg_E Presentation for NRC Public Meeting ML22236A5472022-08-24024 August 2022 NRC Slides for Decommissioning Engagement Panel 8-24-2022 Meeting ML22200A0712022-07-21021 July 2022 Post-Shutdown Decommissioning Activities Report Public Meeting Slides - July 21, 2022 ML22200A0722022-07-21021 July 2022 PG&E Slides for Post-Shutdown Decommissioning Activities Report Public Meeting, Site-Specific Decommissioning Cost Estimate, and Irradiated Fuel Management Plan - July 21, 2022 ML21223A0842021-08-11011 August 2021 Slides for Post Shutdown EP pre-submittal Public Teleconference 8-30-2021 ML20310A2792020-11-0505 November 2020 Slides for Defueled TS Pre-Submittal Public Teleconference November 24, 2020 (L-2020-LRM-0101) ML21060B1872020-01-26026 January 2020 Enclosure 3 - 1-26-21 Diablo Canyon Renewal pre-app Meeting Slides ML19233A0722019-08-27027 August 2019 NEIMA Meeting Slides Public ML18295A0732018-10-24024 October 2018 Final Diablo Canyon Decommissioning Engagement Panel Meeting Oct 24 2018 ML17296A2222017-08-29029 August 2017 Presentation on Reactor Decommissioning for the August 29, 2017 at Congressman Salud Carbajal'S Public Meeting at San Luis Obispo Near Diablo Canyon ML16335A4392016-11-30030 November 2016 PG&E Reg Conference Presentation - NRC-11152016 ML15232A0102015-08-0404 August 2015 Diablo Canyon Power Plant - Risk-Informed Technical Specification Completion Times (TSTF-505) License Amendment Request: August 4, 2015 ML15216A4112015-08-0404 August 2015 TSTF-505: August 4, 2015 Public Meeting ML15216A4082015-08-0404 August 2015 Diablo Canyon Power Plant - Risk-Informed Technical Specification Completion Times (TSTF-505) License Amendment Request: August 4, 2015 ML15209A9442015-07-28028 July 2015 June 24, 2015, Summary of Annual Assessment Meeting with Pacific Gas and Electric and Public Open House Regarding Diablo Canyon Power Plant 2014 Performance ML15202A0982015-07-21021 July 2015 Slides for the August 5, 2015 Diablo Canyon Power Plant License Renewal Application Public Scoping Meeting ML15117A2262015-04-28028 April 2015 Nuclear Regulatory Commission April 28, 2015, Public Meeting Slides for Diablo Canyon Seismic Hazard Reevaluation ML15117A0692015-04-28028 April 2015 Pacific Gas and Electric Co. April 28, 2015, Public Meeting Slides for Diablo Canyon Seismic Hazard Reevaluation ML15035A0062015-02-0404 February 2015 Meeting Presentation, Diablo Canyon Power Plant Process Protection System Replacement Lessons Learned Using ISG 6 NRC Meeting on Digital I&C. ML15029A0942015-02-0303 February 2015 Alternate Source Term Pre- Submittal Meeting on February 3, 2015 (TAC Nos. MF5596 and MF5597). AST LAR NRC Meeting Presentation ML15014A2232015-01-14014 January 2015 Slides Regulatory Conference - January 14, 2015 ML14195A3742014-07-10010 July 2014 Update of Industry Actions Related to Diablo Canyon OE ML14188A9702014-07-0808 July 2014 14-07-08 ISG-06 Experience Presentation July 8 2014 Digital IC Meeting ML14155A3742014-06-0404 June 2014 May 22, 2014, Summary of Annual Assessment Meeting with Pacific Gas and Electric Regarding Diablo Canyon Power Plant 2013 Performance ML14077A2872014-03-18018 March 2014 Transcript of the 612th ACRS Meeting, March 6, 2014 (Open) Pages 1-317 ML13150A1712013-11-19019 November 2013 1978 - Rhrp Cavitation ML13150A1812013-11-19019 November 2013 Trade-Off Between Tank Vortexing Margin and ECCS Function ML13274A5142013-10-0202 October 2013 License Slides, 10/2/13 Pre-Application Meeting with Pacific Gas and Electric Company to Discuss Upcoming Structural Weld Overlay Relief Request to Use an Alternative to Disposition Detected Laminar Indications at Diablo Canyon, Unit 2 (TAC ML13269A0052013-09-26026 September 2013 Licensee Slides for 9/26/13 Meeting to Discuss Amendment Request to Adopt Technical Specifications Task Force TSTF-505, Provide Risk-Informed Extended Completion Times, RITSTF Initiative 4B ML13268A0022013-09-25025 September 2013 Slide Presentation for 9/25/13 Preapplication Meeting - Use of Leak-before-break for Fuel Structural Analyses and Coolable Geometry ML13268A0052013-09-24024 September 2013 Slide Presentation for 9/24/13 Pre-application Meeting, Diesel Generator License Amendment Request ML13159A0092013-06-0404 June 2013 Notable Failures in Nondustructive Testing - June 4, 2013 Public Meeting ML13066A7402013-03-0707 March 2013 Licensee Slides from 3/7/13 Pre-Application Meeting with Pacific Gas and Electric Company(Tac MF0687 & MF0688) ML13044A7352013-02-12012 February 2013 Licensee Slides from 2/12/13 Public Meeting to Discuss License Amendment Requests for Degraded Voltage Protection and Control Room Dose Analysis of Record at Diablo Canyon, Units 1 and 2 ML13024A4052013-01-24024 January 2013 Licensee Slides from 1/24/13 Meeting to Discuss Offsite Power ML13018A1342013-01-15015 January 2013 Pacific Gas and Electric Handouts from January 15, 2013 Meeting Regarding Pending License Amendment Request Related to Diesel Generator Technical Specifications ML12355A1612012-12-18018 December 2012 PG&E Handouts from the December 18, 2012, Meeting with the NRC Related to Emergency Core Cooling System Evaluations (TAC Nos. MF0313 and MF0315) ML12311A0492012-09-18018 September 2012 Part 26 Public Meeting NEI Presentation Slides ML12226A2552012-08-0707 August 2012 License Slides from 8/7/12 Meeting with Pacific Gas and Electric Regarding Future License Amendment Associated with Diesel Generator Technical Specifications ML12193A1412012-07-25025 July 2012 6/28/2012 Summary of Meeting with Pacific Gas and Electric to Discuss Digital Replacement of Process Protection System at Diablo Canyon, Units 1 and 2 and Presubmittal of TSTF-493 Option B License Amendment Request (TAC ME7522-ME7523, ME851 ML12157A2722012-06-11011 June 2012 5/31/2012 Summary of Telephone Conference with Licensees Regarding Near Term Task Force Recommendation 2.1 Seismic Reevaluations - Diablo Canyon, 1 and 2, San Onofre, Units 2 and 3, Columbia Generating Station, and Palo Verde, Units 1, 2, a 2024-02-05
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UNITED STArES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 July 25, 2012 LICENSEE: Pacific Gas and Electric Company FACILITY: Diablo Canyon Power Plant, Unit Nos. 1 and 2
SUBJECT:
SUMMARY
OF JUNE 28, 2012, MEETING WITH PACIFIC GAS AND ELECTRIC COMPANY TO DISCUSS TECHNICAL SPECIFICATION INSTRUMENTATION AND CONTROL SETPOINT CHANGES AT DIABLO CANYON POWER PLANT (TAC NOS. ME7522, ME7523, ME8517, AND ME8518)
On June 28,2012, a Category 1 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) and representatives of Pacific Gas and Electric Company (PG&E, the licensee) at NRC Headquarters, One White Flint North, 11555 Rockville, Maryland. The purpose of the meeting was to discuss Technical Specification (TS) instrumentation and control setpoint changes. A list of attendees is provided in Enclosure 1. PG&E's handouts from the meeting are provided in Enclosure 2.
The meeting was broken into two parts with the first part of the meeting discussing the setpoint methodology used to support a license amendment request (LAR) submitted by PG&E on October 26, 2011, for the Digital Replacement of the Process Protection System (PPS) Portion of the Reactor Trip System and Engineered Safety Features Actuation System at Diablo Canyon Power Plant, Unit Nos. 1 and 2 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML113070457). The second part of the meeting included PG&E's plans for submitting a future LAR to implement a TS setpoint control program to allow relocation of the setpoints from the TSs to licensee control in accordance with TS Task Force (TSTF) Change Traveler TSTF-493, "Clarify Application of Setpoint Methodology for LSSS
[Limiting Safety System Settings] Functions," Option 8.
Highlights and Action Items from the Meeting
- PG&E indicated that the setpoint methodology that it intended to use to support the October 26, 2011, digital replacement LAR was imbedded in WCAP-17504-P, "Westinghouse Generic Setpoint Methodology," February 2012 that was submitted to the NRC by a letter dated February 20, 2012 (ADAMS Accession No. ML12058A448). PG&E requested NRC confirmation that WCAP-17504-P would be reviewed by the staff as part of the October 26,2011, digital replacement LAR.
- The NRC staff indicated that trying to perform the LAR review in parallel with the WCAP review was extremely problematic. For example, the staff indicated that at the completion of the WCAP review there would most likely be app/ication specific action items that would have to be addressed by anyone that wanted to reference the WCAP safety evaluation. Therefore, the application-specific action
- 2 items could not be addressed until the WCAP review was completed several months into the future. The staff indicated that typically review and approval of topical reports take approximately 18 to 24 months to conclude. Therefore, it is highly likely that including the WCAP within the scope of the LAR approval will delay issuance of the DCPP PPS LAR. Furthermore, accepting license amendment requests referencing unapproved topical reports is not consistent with the agency's licensing process. The staff indicated that as an alternative, PG&E could submit the setpoint methodology applicable to the DCPP PPS LAR on a plant-specific basis, which would allow the staff to better manage the review. PG&E took the following actions as a result of the discussion:
o Consider the staff's feedback on whether a plant-specific submittal for the setpoint methodology better supported PG&E's needs, as opposed to relying on the staff's review of a topical report.
o Consider whether or not to provide a letter to the NRC stating that it intended to use the WCAP-17504-P methodology so that the staff could consider this information as part of its prioritization of topical report reviews.
In addition, PG&E indicated that it would submit on the docket the setpoint calculation summary report and that the setpoint calculations themselves would be made available for NRC review in the form of Westinghouse Calculation Notes at Westinghouse's Rockville, MD offices. The NRC staff indicated that in the past, representative setpoint calculations were placed on the docket to support the staff's safety evaluation. This is required by the NRC's licensing process (LlC-101) if the information within a setpoint calculation is used to make the safety finding and documented within the safety evaluation. The process that was used in the past is the staff asked for a listing of all the setpoint calculations, and then based on the list requested the licensee to formally submit one or two of the calculations as representative samples. The staff explained that the NRC has regulations, procedures, and a records management system designed to protect proprietary information submitted on the docket. PG&E took an action to determine if the staff's suggested approach was problematiC and, if it is, to provide this feedback, including the reason for it being problematic, to the staff.
- In the second portion of the meeting, PG&E indicated that it was targeting summer 2013, for the LAR to implement TSTF-493 option B. In response to a PG&E question, the NRC staff stated that it was the staff's expectation that the plant-specific setpoint control program should be submitted with the TSTF-493 Option B LAR. NRC took the following actions as a result of this discussion:
o Issue the draft guidance that the staff is developing that will provide additional guidance to those utilities that intend to pursue TSTF-493 Option B.
-3 o The NRC's Instrumentation and Controls Branch will work with the Division of Policy and Rulemaking to determine if a pilot program for the use of TSTF-493 Option B is appropriate.
PG&E indicated that it would be interested in being the pilot for the use of TSTF-493 Option B and would be further interested in pursuing a fee waiver, if possible, associated with the review. The NRC staff indicated that it would consider the request by PG&E to be considered as a pilot for TSTF-493 Option B.
Docket Nos. 50-275 and 50-323
Enclosures:
- 1. list of attendees
- 2. PG&E handouts cc w/encls: Distribution via listserv
LIST OF ATTENDEES JUNE 28, 2012, MEETING WITH PACIFIC GAS AND ELECTRIC COMPANY REGARDING TECHNICAL SPECIFICATION SETPOINT CHANGES AT DIABLO CANYON POWER PLANT DOCKET NOS. 50-273 AND 50-323 NAME ORGANIZATION Ken Schrader Pacific Gas and Electric Russ Prentice Pacific Gas and Electric Robert Washington Pacific Gas and Electric Terry Williams Westinghouse Rick Tuley Westinghouse Ryan Rossman Westinghouse Zackary King Westinghouse Jim Andrachek Westinghouse Dewey Olinski Westinghouse John Hefler Altran Ted Quinn Altran Brian Haynes Invensys John Thorp U.S. Nuclear Regulatory Commission David Rahn U.S. Nuclear Regulatory Commission William Kemper U.S. Nuclear Regulatory Commission Kristy Bucholtz U.S. Nuclear Regulatory Commission Thomas Burton U.S. Nuclear Regulatory Commission Pong Chung U.S. Nuclear Regulatory Commission Louis Dumont U.S. Nuclear Regulatory Commission Joe Sebrosky U.S. Nuclear Regulatory Commission Shiattin Makor U.S. Nuclear Regulatory Commission Gordon Clefton Nuclear Energy Institute Jerry Voss Excel Services Bob Hunter Hurst Technologies Bill Sotos Hurst Technologies Steve Widem Wolf Creek Nuclear Ken Korcz Babcock and Wilcox MPower Enclosure 1
DIABLO CANYON POWER PLANT SETPOINTS, DIGITAL REPLACEMENT OF PROCESS PROTECTION SYSTEM AND TSTF-493 Option B June 28, 2012 Ken Schrader Robert Washington Russ Prentice Pacific Gas & Electric Co.
Avila Beach, CA
- c. Rick Tuley Terry Williams Jim Andrachek Ryan Rossman Westinghouse John Hefler Altran San Francisco, CA 1
Enclosure 2
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PPS Replacement LAR Setpoints
- License Amendment Request (LAR) for Process Protection System (PPS) Replacement submitted October 26, 2011
[J ADAMS Accession No. ML11307A331
- Setpoints for PPS replacement being addressed in two phases o Phase One - Setpoint evaluation o Phase Two - Setpoint calculations
- Setpoint evaluation and calculations are performed by Westinghouse 2
I PPS Replacement LAR Setpoints - -,.,
- Setpoint evaluation information for PPS Replacement submitted June 6, 2012 o Interim Staff Guidance (ISG) 6 Phase 2 documents o Enclosure Attachment 15 (proprietary) o Enclosure Attachment 16 (nonproprietary) o Inputs, equations, and results are consistent with information contained in current Diablo Canyon Setpoints Report, WCAP-11 082 Revision 6
- Initially referenced in 2004 Amendments 178/180
- Last referenced in 2009 Amendment 208 3
PPS Replacement Setpoint Evaluation
- Calculate as-found tolerances (AFT) and as-left tolerances (ALT) for applicable process racks, transmitters, and sensors
- Review current plant accident analyses, installed sensors, manufacturer specifications, plant procedures and calculations
- Evaluate as-found minus as-left drift data from recent surveillance results for sample of transmitters 4
I PPS Replacement Setpoint Evaluation II Scope o Reactor Trip System (RTS) and Engineered Safety Feature Actuation System (ESFAS) functions processed by PPS II Methodology:
D WCAP-17504-P, Westinghouse Generic Setpoint Methodology, submitted February 20,2012 o Total uncertainty determined at two-sided 950/0 probability and 95% confidence (95/95) level o Uncertainty algorithm consistent with ANSIIISA-67.04.01 2006 o ISA-RP67.04.02-2010 considered 5
PPS Replacement Setpoint Evaluation
- Setpoint evaluation uses current Diablo Canyon drift allowances that are expected to be bounding o WCAP-14646, Revision 1, Diablo Canyon drift evaluation for 24 month fuel cycle uncertainties (approved in 1998 Amendments 122/120)
- Confirmed that the RCS Flow and Pressurizer Pressure drift was within the defined sensor calibration accuracy (SCA) and sensor drift (SO) o Bounding PPS rack uncertainties from existing design (reference accuracy, temperature affects, drift) o PPS replacement design specified to be less than or equal to the current PPS rack uncertainties 6
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PPS Replacement Setpoint Evaluation
- Evaluation submitted June 6, 2012, concludes current PPS related RTS/ESFAS Technical Specification (TS) nominal trip setpoints remain acceptable for PPS replacement
- Uncertainty calculations are being performed o Confirm at a 95/95 level, consistent with Regulatory Guide 1.105 Revision 3 7
PPS Replacement Setpoint Calculations
- Westinghouse Setpoint Methodology as described in WCAP-17504-P o Basic algorithm and term identification o Definitions and Summary Tables of Inputs and Calculations for:
- RTS/ESFAS Protection functions
- ITDP/RTDP Control functions
- Indication o Calibration and drift evaluation o Application of Setpoint Methodology 8
PPS Replacement Setpoint Calculations
- Basic Algorithm for Protection Functions eSA PROT =
+ + +
PMA 2 PEA 2 + SRA 2 + (SMTE SD)2 (SMTE + seA)2 +} + EA + Blas.
{ SPE 2 + STE 2 + (RMTE + RD )2 + (RMfE + RCA)2 + RTE 2
- Statistical Basis is 95/95 Two-sided
- PG&E and Westinghouse are working with the vendors to determine 95/95 inputs 9
PPS Replacement Setpoint Calculations Safety Limit II Setpoint Parameter Relationship SAL Diagram (Increasing Function) -.,..----r"1-IA II SAL =Safety Analysis Limit III TA =Total Allowance II CSA = Channel Statistical ('SA Allowance III NTS = Nominal Trip Setpoint II RCA =Rack Calibration Allowance II ALT =As-left Tolerance \Iaq!in
~RC'\
I -r
- +ALT"" + .\FT NTS (LSSS)
-R( A II AFT =As-found Tolerance -AtT" -.\FT 10
!pPS Replacement Setpoint Calculations
- As-found Tolerance Limits (J Transmitters +/-AFT =+/-SD
- As-found within +/-ALT =Operable
- As-found within +/-AFT =Operable, needs recalibration
- As-found outside +/-AFT = Inoperable, needs recalibration &
evaluation o Process Racks +/-AFT =+/-ALT =+/-RCA
- As-left Tolerance Limits (J Transmitters +/-ALT =+/-SCA (J Process Racks +/-ALT =+/-RCA
.----------
11
PPS Replacement Setpoint Calculations
o Plant accident analyses o Plant installed sensors and transmitters o PPS replacement components D Measurement and Test Equipment D Plant surveillance procedures o Initial conditions uncertainties in WCAP-11594, Revision 2 (amendments 123 and 121 for 24 month surveillance frequencies)
D Vendor instrument data 12
I PPS Replacement Setpoint Calculations
- Sensor and rack calibration and drift D Process as described in WCAP-17504-P D Determination of calibration and drift data at a 95/95 level 13
IpPs Replacement Setpoint Calculations
- Calculation summary report will be submitted to NRC with:
o Listing of instrument uncertainties o CSA calculation o SAL, NTS (Protection) o T A calculation o Margin o Transmitter ALT, AFT limits o Process Rack ALT, AFT limits 14
PPS Replacement Setpoint Calculations
- Setpoint calculations will be available for NRC review at-Westinghouse White Flint office, as requested 15
PPS Replacement Setpoint Calculations
- Application of Westinghouse Setpoint Methodology o Basic Assumptions
- Instrument techs drive as left value towards 0 error
- Process rack calibration and drift data are evaluated
- Transmitter calibration and drift data are evaluated o Operability
- First confirmation of operability is: Ability to calibrate
- Second confirmation of operability is: Drift magnitude 16
PPS Replacement Setpoint Calculations
- PG&E currently controls the as-found and as-left tolerances through existing procedures
- The current surveillance test procedures for the RTS and ESFAS PPS functions require:
o If the as-found setting is not within desired range, enter into corrective action program o The as-left setting shall be within the desired range 17
IPPS Replacement Setpoint Calculations
- PG&E committed to actions to be performed if AFT or AL T are exceeded for PPS related setpoints in PG&E Letter dated June 6, 2012 18
PPS Replacement Setpoint Calculations D PG&E is expecting the NRC staff to review Westinghouse WCAP-17504-P as part of the PPS Replacement LAR.
D Please confirm the review will be included as part of the PPS Replacement LAR.
19
I PG&E LAR for TSTF-493 Option B
- PG&E submitted an LAR for SG replacement that included a revision to the TS 3.3.2 ESFAS Feedwater isolation on SG water level-high high (P-14) function o Letter dated January 11 , 2007 o As-found and as-left tolerance notes added to P-14 function
- In the LAR, PG&E committed to submit an LAR for TSTF-493 to address the remaining RTS/ESFAS functions
- Amendments 198/199 include commitment 20
IPG&E LAR for TSTF-493 Option B II PG&E plans to submit LAR to implement TSTF-493, Revision 4, Option B with a Setpoint Control Program (SCP), based on Westinghouse WCAP-17503-P o TSTF-493 Option B Model Application o Allowable values and nominal trip setpoints will be removed, consistent with TSTF o Currently planned for summer 2013 submittal
- SCP will address each of the blocks of the Westinghouse SCP Process Flow Diagram
- Diablo Canyon specific SCP will provide linkage with Westinghouse setpoint methodology assumptions 21
I PG&E LAR for TSTF-493 Option B -
- Instrumentation items to be included in SCP:
o TS 3.3.1, RTS o TS 3.3.2, ESFAS o TS 3.3.5, Loss of power DG start o TS 3.3.6, Containment ventilation isolation o TS 3.3.7, Control room ventilation actuation o TS 3.3.8, Fuel Building ventilation actuation 22
PG&E LAR for TSTF-493 Option B
- SCP provides comprehens*ive controls of critical instrumentation design input parameters so plant remains within design and safety analysis assumptions 23
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IPG&E LAR for TSTF-493 Option B
PG&E LAR for TSTF-493 Option B
- Industry documents to be evaluated o ISA Documents o IEEE Standards o TSTF-493 Rev. 4 26
PG&E LAR for TSTF-493 Option B
- Examples of Vendor documents to be evaluated:
CJ Cameron/Barton 763A GP Transmitter User Manual (9A C 10861, Rev. 03, 7/10)
CJ Ultra/Weed RTO Installation/Instruction/Operation Manual (OWG 3017-307485-003, Rev. 3, 9/89)
CJ Rosemount 11530/1154 Transmitter Reference Manual (00809-0100-4388/4514, Rev. BA, 1/08)
CJ Rosemount 1154 H Transmitter Reference Manual (00809 0100-4631, Rev. BA, 4/07)
CJ Fluke 8842A Multimeter User Manual (879309, Rev. 3, 7/96) 27
IPG&E LAR for TSTF-493 Option B
- Examples of Diablo Canyon specific documents to be addressed:
o Setpoint Control Program
- Setpoint Control Program, CF6.ID1
- Instrument Channel Uncertainty and Setpoint Methodology, CF6.NE1
- Assessment of Industry Operating Experience, OM4.I03 28
PG&E LAR for TSTF-493 Option B
- Examples of Diablo Canyon specific documents (continued):
o Scaling Procedures/Calculations
- I&C Scaling Calculation Standard Practices, CF3.DC6
- Bases Documents for Maintenance Organization Procedures, CF3.DC5 o Calibration Procedures
- Conduct of Plant and Equipment Tests, AD13.ID1
- Calibration of Measuring and Test Equipment, MA2.DC1 29
I PG&E LAR for TSTF-493 Option B
- Examples of Diablo Canyon specific documents (continued):
o Surveillance Procedures
- Conduct of Plant and Equipment Tests, AD13.ID1
- Drift Monitoring Program for 24-Month Fuel Cycle, CF6.ID3
- Instrument Channel Uncertainty and Setpoint Methodology, CF6.NE1 30
!PG&E LAR for TSTF-493 Option B
- Examples of Diablo Canyon specific documents (continued):
D Corrective Action Program
- Setpoint Control Program, CF6.ID1
- Conduct of Plant and Equipment Tests, AD13.ID1
- Performance Monitoring Equipment Calibration and Usage Control, MA2.ID2
- 10 CFR 21 Reportability Review Process, OM7.ID11
PG&E LAR for TSTF-493 Option B
- Examples of Diablo Canyon specific documents (continued):
o Maintenance Procedures
- Maintenance Organization Procedure Use, AD7.DC9
- Conduct of Plant and Equipment Tests, AD13.ID1
- Bases Documents for Maintenance Organization Procedures, CF3.DC5
- Conduct of Maintenance, MA1.DC54 32
IPG&E LAR for TSTF-493 Option B
- Examples of Diablo Canyon specific documents (continued):
D Change Control Process
- Modification Control, CF4
- Modification Request and Authorization, CF4.ID1
- Modification Implementation, CF4.ID3
- Design Change Development, CF3.ID9
- Replacement Part Evaluation, CF3.ID13 33
PG&E LAR for TSTF-493 Option B
- Examples of Diablo Canyon specific documents (continued):
o Administrative Controls
- Development of Performance Monitoring Equipment Channel Uncertainty Calculations, AWP E-001
- Engineering Services Post Earthquake Inspection Guidelines, AWP E-019
___ a Design Calculations, CF3.ID4 34
PG&E LAR for TSTF-493 Option B
- Please confirm the WCAP-17503-P review will be included as part of the PPS replacement LAR.
35
PG&E LAR for TSTF-493 Option B
- Does the plant specific SCP need to be submitted with the TSTF-493 Option B LAR?
36
- 3 o The NRC's Instrumentation and Controls Branch will work with the Division of Policy and Rulemaking to determine if a pilot program for the use of TSTF-493 Option B is appropriate.
PG&E indicated that it would be interested in being the pilot for the use of TSTF-493 Option B and would be further interested in pursuing a fee waiver, if possible, associated with the review. The NRC staff indicated that it would consider the request by PG&E to be considered as a pilot for TSTF-493 Option B.
Please direct any inquiries to me at 301-415-1132 or at Joseph.Sebrosky@nrc.gov.
IRA!
Joseph M. Sebrosky, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323
Enclosures:
- 1. List of attendees
- 2. PG&E handouts cc w/encls: Distribution via Listserv DISTRIBUTION:
PUBLIC TWertz, NRR lPLIV Reading WKemper, NRR/DE/EICB RidsAcrsAcnw_MaiICTR Resource RStattel, NRR/DE/EICB RidsNrrDeEicb Resource RAlvarado, NRRIDE/EICB RidsNrrDorl Resource SMakor, RIVIDRS/EB2 RidsNrrDorllpl4 Resource SAchen, RIV RidsNrrLAJ Burkhardt Resource SKennedy, EDO RIV RidsNrrPMDiabloCanyon Resource DRahn, NRR/DE/EICB RidsOgcRp Resource JThorp, NRR/DE/EICB RidsRgn4MailCenter Resource KBucholtz, NRRIDSS/STSB WMaier, RIV ADAMS Accession Nos. MeetingNotice ML121350037; Meeting s ummarv ML12193A141 OFFICE DORULPL4/PM DORULPL4/LA NRRIDE/EICB DORULPL4/BC DORULPL4/PM NAME JSebrosky JBurkhardt DRahn MMarkley JSebrosky DATE 7/24/12 7/23/12 7/24/12 7/25/12 7/25/12 OFFICIAL RECORD COpy