Letter Sequence Other |
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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) |
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, 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, ML13339A428, ML14126A377, 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 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 ML1202500572012-01-18018 January 2012 Meeting Slides Process Protection System Replacement LAR Acceptance Review Meeting Presentation Project stage: Meeting ML1202500792012-01-18018 January 2012 Project Plan for Diablo Canyon Digital Upgrade of Process Protection System LAR Review Project stage: Other 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 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 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 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 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 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 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 ML1211703372012-05-0404 May 2012 Request for Withholding Information from Public Disclosure Project stage: Withholding Request Acceptance 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 ML12170A8372012-06-0606 June 2012 Submittal of Phase 2 Documents for the License Amendment Request for Digital Process Protection System Replacement Project stage: Request 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 ML12222A0982012-06-0707 June 2012 Process Protection System Replacement Interface Requirements Specification (Irs), Revision 6, Attachment 3 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 ML12222A1012012-06-0707 June 2012 Invensys Operations Management Document 993754-1-813, Validation Test Plan, Revision 1, Attachment 6 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 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 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 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 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 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 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 DCL-12-069, Diablo Canyon, Units 1 and 2 - 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-38T2012-08-0202 August 2012 Diablo Canyon, Units 1 and 2 - 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 DCL-12-114, Final Response to Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.3 Flooding2012-11-27027 November 2012 Final Response to Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.3 Flooding Project stage: Response to RAI 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 2012-04-02
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Category:Audit Plan
MONTHYEARML24117A0132024-05-20020 May 2024 Letter to Paula Gerfen-Diablo Canyon Units 1 and 2-Regulatory Audit Regarding Severe Accident Mitigation Alternatives for the License Renewal Application ML24002B1802024-01-29029 January 2024 LRA Audit Plan ML23264A0012023-09-21021 September 2023 – Regulatory Audit Plan in Support of License Amendment Request to Revise Technical Specifications to Adopt Risk-Informed Completion Times ML19106A3902019-04-23023 April 2019 Regulatory Audit Plan for Audit in Support of the License Amendment Request to Revise Technical Specification for Use of Full Spectrum Loss-Of-Coolant Accident Methodology ML17177A4462017-07-0606 July 2017 Audit Plan for Licensee Responses Concerning Seismic Hazard Reevaluations Related to Request for Information -(50.54(F) Letter) Regarding Recommendation 2.1 of the Near-Term Task Force ML16259A1892016-12-0505 December 2016 Nuclear Regulatory Commission Plan for the Audit of Mitigation Strategies Assessment Submittals Related to Order EA-12-049, Order to Modify Licenses With Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events ML16193A3322016-07-12012 July 2016 Audit Plan for August 3-4, 2016, Nrr/Dra/Arcb Regulatory Audit at Westinghouse Facility in Rockville, MD, to Support Review of License Amendment Request for Adoption of Alternative Source Term ML15355A1572015-12-24024 December 2015 Regulatory Audit Plans for 01/12-14/2016 Audit at Westinghouse Facility to Support Review of License Amendment Requests for Adoption of Alternative Source Term and Revision of the UFSAR for Beacon Methodology ML15244B0992015-09-0404 September 2015 Nuclear Regulatory Commission Plan for the Audit of Pacific Gas and Electric Company'S Seismic Hazard and Screening Report Submittal Related to the Near-Term Task Force Recommendation 2.1- Seismic for Diablo Canyon Power Plant Unit Nos. 1 a ML15233A5182015-08-28028 August 2015 License Renewal Environmental Site Audit Regarding Diablo Canyon Power Plant, Units 1 and 2-SAMA ML15217A3562015-08-14014 August 2015 Nuclear Regulatory Commission Plan for the Audit of Pacific Gas and Electric Companys Seismic Hazard and Screening Report Submittal Related to the Near-Term Task Force Recommendation 2.1 - Seismic for Diablo Canyon Power Plant, Unit Nos. 1 ML15189A3382015-07-20020 July 2015 Plan for the Onsite Audit Regarding Implementation of Mitigating Strategies and Reliable Spent Fuel Instrumentation Related to Orders EA-12-049 and EA-12-051 ML15148A2072015-06-10010 June 2015 Nuclear Regulatory Commission Plan for the Audit of Pacific and Gas Electric Companys Flood Hazard Reevaluation Report Submittal Relating to the Near-Term Task Force Recommendation 2.1 Flooding for Diablo Canyon Power Plant, Units 1 and 2 ML15121A3102015-05-15015 May 2015 Regulatory Audit Plan for June 8-12, 2015 Audit at the Westinghouse Facility in Warrendale, PA, to Support Digital Replacement of Process Protection System License Amendment Request (TAC ME7522-ME7523) ML14126A3772014-05-20020 May 2014 Regulatory Audit Plan for June 3-5, 2014 Audit at the Invensys Operations Management Facility in Lake Forest, CA, to Support Digital Replacement of Process Protection System License Amendment Request (TAC ME7522-ME7523) ML14083A6202014-03-26026 March 2014 Nuclear Regulatory Commission Audits of Licensee Responses to Reliable Spent Fuel Pool Instrumentation Order EA-12-051 ML13192A3142013-07-22022 July 2013 Regulatory Audit Plan for August 6-8, 2013, Audit to Support Review of Digital Instrumentation and Control License Amendment Request ML13029A6672013-02-0101 February 2013 Audit Plan for 2/11-14/13, Regulatory Audit at the CS Innovations/Westinghouse Facility in Scottsdale, Az, to Support Digital Replacement of Process Protection System License Amendment Request (TAC Nos. ME7522-ME7523) 2024-05-20
[Table view] Category:Letter
MONTHYEARDCL-24-120, Nuclear Material Transaction Report for New Fuel2024-12-18018 December 2024 Nuclear Material Transaction Report for New Fuel L-24-012, Independent Spent Fuel Storage Installation, Decommissioning Funding Plan2024-12-16016 December 2024 Independent Spent Fuel Storage Installation, Decommissioning Funding Plan IR 05000275/20244052024-12-13013 December 2024 Security Baseline Inspection Report 05000275/2024405 and 05000323/2024405 DCL-24-116, Draft Supplemental Environmental Impact Statement Comment Letter2024-12-13013 December 2024 Draft Supplemental Environmental Impact Statement Comment Letter ML24269A0832024-12-11011 December 2024 Issuance of Amendment Nos. 247 and 249 Adoption of 10 CFR 50.69, Risk Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power Reactors ML24318C4822024-12-0505 December 2024 – Request for Additional Information Alternative Security Measures for Early Warning System (EPID L-2024-LLA-0048 & L-2024-LLE-0016) (Redacted Version) DCL-24-094, License Amendment Request 24-04 Application to Revise Technical Specifications (TS) to Adopt TSTF-589 to Modify TS 3.3.5 and 3.8.22024-11-20020 November 2024 License Amendment Request 24-04 Application to Revise Technical Specifications (TS) to Adopt TSTF-589 to Modify TS 3.3.5 and 3.8.2 ML24346A0272024-11-20020 November 2024 Printed Documents Provided to NRC Staff During Nov 20, 2024 Public Meeting DCL-24-106, Technical Specification Bases, Revision 152024-11-18018 November 2024 Technical Specification Bases, Revision 15 ML24311A1232024-11-14014 November 2024 – Report for the Aging Management Audit Regarding the License Renewal Application Review IR 05000275/20240102024-11-0707 November 2024 Biennial Problem Identification and Resolution Inspection Report 05000275/2024010 and 05000323/2024010 IR 05000275/20244022024-11-0707 November 2024 Security Baseline Inspection Report 05000275/2024402 and 05000323/2024402 IR 07200026/20244012024-11-0606 November 2024 Independent Spent Fuel Storage Installation Security Inspection Report 07200026/2024401 DCL-24-095, CFR 50.46 Annual Report of Emergency Core Cooling System Evaluation Model Changes for Peak Cladding Temperature for 20232024-11-0606 November 2024 CFR 50.46 Annual Report of Emergency Core Cooling System Evaluation Model Changes for Peak Cladding Temperature for 2023 ML24302A1912024-11-0101 November 2024 Ltr to C. Mcdarment Tule River Tribe Re DCPP Dseis ML24302A1952024-11-0101 November 2024 Ltr to M. Olivas Tucker Ytt Re DCPP Dseis ML24302A1922024-11-0101 November 2024 Ltr to G. Frausto Coastal Band of Chumash Indians Re DCPP Dseis ML24302A1932024-11-0101 November 2024 Letter to G. Pierce Salinan Tribe of Monterey, SLO Re DCPP Dseis ML24302A1972024-11-0101 November 2024 Letter to V. Sage Walker Northern Chumash Tribal Council Re DCPP Dseis ML24302A1962024-11-0101 November 2024 Ltr to SLO County Chumash Indians Re DCPP Dseis ML24302A1942024-11-0101 November 2024 Ltr to K. Kahn Santa Ynez Band of Chumash Indians Re DCPP Dseis ML24302A2622024-11-0101 November 2024 Letter to CA SHPO Regarding DCPP Dseis ML24302A2612024-11-0101 November 2024 Letter to Achp Re DCPP Dseis IR 05000275/20240032024-10-30030 October 2024 Integrated Inspection Report 05000275/2024003 and 05000323/2024003 and Independent Spent Fuel Storage Installation Report 07200026/2024001 ML24276A1482024-10-30030 October 2024 NRC to Fws Request for Concurrence with Endangered Species Act Determinations for Diablo Canyon Power Plant, Units 1, 2, ISFSI Proposed License Renewals in San Luis Obispo Co, CA ML24275A0622024-10-30030 October 2024 NRC to NMFS Request Initiate Formal Endangered Species Act Consultation and Abbreviated Essential Fish Habitat for Proposed License Renewal of DCP Plant Units 1, 2 ML24269A0122024-10-29029 October 2024 OEDO-24-00083 2.206 Petition Diablo Canyon Seismic CDF - Response to Petitioner Letter ML24284A3112024-10-28028 October 2024 Ltr to a Peck, Diablo Canyon Nuclear Power Plant Units 1 and 2 Notice of Avail of Draft Supplement 62 to the GEIS for Lic Renew of Nuclear Plants ML24284A3122024-10-28028 October 2024 Ltr to P Ting, Diablo Canyon Nuclear Power Plant Units 1 and 2 Notice of Avail of Draft Supplement 62 to the GEIS for Lic Renew of Nuclear Plants IR 05000275/20240132024-10-28028 October 2024 – License Renewal Report 05000275/2024013 and 05000323/2024013 DCL-24-103, Pg&Es Voluntary Submittal of Information Related to 10 CFR 2.206 Petition Regarding Seismic Core Damage Frequency for DCPP, Units 1 and 22024-10-24024 October 2024 Pg&Es Voluntary Submittal of Information Related to 10 CFR 2.206 Petition Regarding Seismic Core Damage Frequency for DCPP, Units 1 and 2 ML24261B9492024-10-24024 October 2024 Issuance of Amendment Nos. 246 and 248 Revision to Technical Specification 5.6.6, Reactor Coolant System (RCS) Pressure and Temperature Limits Report (PTLR) IR 05000275/20244042024-10-23023 October 2024 Security Baseline Inspection Report 05000275/2024404 and 05000323/2024404 ML24277A0292024-10-18018 October 2024 NRC to Fws Req. for Concurrence W. Endangered Species Act Determinations for Diablo Canyon Power Plant Units 1,2, ISFSI Proposed License Renewals in San Luis Obispo Co., CA DCL-2024-535, Rd Quarter 2024 Discharge Self-Monitoring2024-10-17017 October 2024 Rd Quarter 2024 Discharge Self-Monitoring DCL-24-092, Supplement and Annual Update License Renewal Application, Amendment 12024-10-14014 October 2024 Supplement and Annual Update License Renewal Application, Amendment 1 DCL-24-098, Material Status Report for the Period Ending August 31, 20242024-10-0909 October 2024 Material Status Report for the Period Ending August 31, 2024 IR 05000275/20253012024-10-0303 October 2024 Notification of NRC Initial Operator Licensing Examination 05000275/2025301; 05000323/2025301 DCL-24-091, Response to Request for Additional Information by the Office of Nuclear Reactor Regulation2024-10-0303 October 2024 Response to Request for Additional Information by the Office of Nuclear Reactor Regulation ML24240A0222024-09-20020 September 2024 Letter to A. Peck Environmental Impact Statement Scoping Summary Report for Diablo Canyon Nuclear Power Plant Units 1 and 2 ML24260A1222024-09-14014 September 2024 14 Sept 2024 Ltr - California Coastal Commission to Pg&E, Incomplete Consistency Certification for Requested Nuclear Regulatory Commission License Renewal for Diablo Canyon Power Plant DCL-24-087, License Renewal - Historic and Cultural Resources Reference Documents (Redacted)2024-09-12012 September 2024 License Renewal - Historic and Cultural Resources Reference Documents (Redacted) ML24262A2462024-09-11011 September 2024 10 CFR 2.206 - Diablo Canyon Units 1 and 2 Seismic - Petitioner Response to Acknowledgement Letter - DCL-24-083, CFR Part 21 Notification: Commercially Dedicated Snubber Valve Not Properly Heat Treated2024-09-0909 September 2024 CFR Part 21 Notification: Commercially Dedicated Snubber Valve Not Properly Heat Treated DCL-24-078, Pre-Notice of Disbursement from Decommissioning Trust2024-09-0303 September 2024 Pre-Notice of Disbursement from Decommissioning Trust DCL-24-082, Decommissioning Draft Biological Assessment and Draft Essential Fish Habitat Assessment2024-08-28028 August 2024 Decommissioning Draft Biological Assessment and Draft Essential Fish Habitat Assessment ML24205A0662024-08-27027 August 2024 OEDO-24-00083 - 10 CFR 2.206 - Ack Letter - Diablo Canyon Units 1 and 2 Seismic Core Damage Frequency - IR 05000275/20243012024-08-26026 August 2024 NRC Examination Report 05000275/2024301; 05000323/2024301 IR 05000275/20240052024-08-22022 August 2024 Updated Inspection Plan for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2024005 and 05000323/2024005) DCL-24-077, Responses to NRC Requests for Additional Information on Diablo Canyon Power License Renewal Application Severe Accident2024-08-15015 August 2024 Responses to NRC Requests for Additional Information on Diablo Canyon Power License Renewal Application Severe Accident 2024-09-09
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 February 1, 2013 Mr. Edward D. Halpin Senior Vice President and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Power Plant P.O. Box 56, Mail Code 104/6 Avila Beach, CA 93424
SUBJECT:
DIABLO CANYON POWER PLANT, UNIT NOS. 1 AND 2 - REGULATORY AUDIT PLAN FOR FEBRUARY 11-14, 2013, AUDIT AT THE CS INNOVATIONSI WESTINGHOUSE FACILITY IN SCOTTSDALE, ARIZONIA, TO SUPPORT REVIEW OF DIGITAL INSTRUMENTATION AND CONTROL LICENSE AMENDMENT REQUEST (TAC NOS. ME7522 AND ME7523)
Dear Mr. Halpin:
By letter dated October 26, 2011, as supplemented by letters dated December 20, 2011, and April 2, April 30, June 6, August 2, September 11, November 27 and December 5, 2012 (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML113070457, ML113610541, ML12094A072, ML12131A513, ML12170A837, ML12222A094, ML12256A308, ML13004A468, and ML12342A149, respectively), Pacific Gas and Electric (PG&E, the licensee), requested the U.S. Nuclear Regulatory Commission (NRC) staffs approval of an amendment for the Diablo Canyon Power Plant, Unit Nos. 1 and 2 (DCPP). The proposed license amendment request would provide a digital replacement of the Process Protection System (PPS) portion of the Reactor Trip System and Engineered Safety Features Actuation System at DCPP.
To support its safety evaluation, the NRC Instrumentation and Controls Branch will conduct an audit at the CS InnovationslWestinghouse facility in Scottsdale, Arizona, during the week of February 11-14, 2013. The purpose of this audit is to determine if the life cycle processes used, and the outputs of those processes, will result in a PPS for use at DCPP which will meet regulatory requirements. This audit will provide information necessary to complete the staffs evaluation of the proposed Advanced Logic System portion of the DCPP PPS. Enclosed is the plan to support this audit.
E. Halpin
- 2 If you have any questions, please contact me at 301-415-1132 or via e-mail at joseph.sebrosky@nrc.gov.
J se M. Sebrosk, Senior Proj ct lant Licensing Branch IV ivision of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323
Enclosure:
As stated cc w/encl: Distribution via Listserv
NRC INSTRUMENTATION AND CONTROL BRANCH DIABLO CANYON POWER PLANT. UNIT NOS. 1 AND 2 DIGITAL PROCESS PROTECTION SYSTEM REGULATORY AUDIT PLAN FEBRUARY 11-14. 2013 CS INNOVATIONSIWESTINGHOUSE FACILITY IN SCOTTSDALE. ARIZONA BACKGROUND By letter dated October 26, 2011, as supplemented by letters dated December 20, 2011, and April 2, April 30, June 6, August 2, September 11, November 27 and December 5, 2012 (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML113070457, ML113610541, ML12094A072, ML12131A513, ML12170A837, ML12222A094, ML12256A308, ML13004A468, and ML12342A149, respectively), Pacific Gas and Electric (PG&E, the licensee), requested the U.S. Nuclear Regulatory Commission (NRC) staff's approval of an amendment for the Diablo Canyon Power Plant, Unit Nos. 1 and 2 (DCPP). The proposed license amendment request (LAR) would provide a digital replacement of the Process Protection System (PPS) portion of the Reactor Trip System and Engineered Safety Features Actuation System at DCPP. The LAR requested NRC review and approval of the proposed design.
REGULATORY AUDIT BASIS To support its safety evaluation, the NRC Instrumentation and Controls Branch (EICB) will conduct an audit at the CS Innovations (CSI)lWestinghouse facility in Scottsdale, Arizona. The purpose of this audit is to determine if the life cycle processes used, and the outputs of those processes, will result in a PPS system for use at DCPP which will meet regulatory requirements.
This audit will provide information necessary to complete the NRC staffs evaluation of the proposed Westinghouse Advanced Logic System (ALS) portion of the DCPP PPS.
REGULATORY AUDIT SCOPE The objective of this audit is to verify via an independent evaluation, that the ALS logic platform to be used at DCPP for the PPS system conforms to applicable regulations, standards, guidelines, plans, and procedures by assessing the implementation of the systems developmental life cycle process. A review of activities associated with the licensee's cyber security plan will also be conducted.
The audit team will conduct an assessment of the development environment for ALS portion of the DCPP PPS system. The team will evaluate this environment against the criteria provided in NRC Regulatory Guide (RG) 1.152, Revision 3, "Criteria for Use of Computers in Safety Systems of Nuclear Power Plants," July 2011 (ADAMS Accession No. ML102870022), for the life cycle development phases that are complete and in progress.
Enclosure
- 2 The Westinghouse ALS platform is currently being evaluated by NRC for referencing in LARs.
The ALS platform safety evaluation is expected to be completed prior to the installation of the PPS system at DCPP.
AUDIT REQUIREMENTS ALS Logic Verification and Validation - Verify that the DCPP PPS application logic verification and validation (V&V) program meets the requirements of Institute of Electrical and Electronics Engineers (IEEE) Standard IEEE-1012, "Standard for Software Verification and Validation," and that the V&V program is implemented in a manner which reliably verifies and validates the design outputs of each stage of the design process.
Configuration Management - Verify that the configuration management system has the appropriate hardware and software tools under configuration management. and that the configuration management system is effectively controlling these items.
Quality Assurance - Verify that the Quality Assurance (QA) program used for ALS logic implementation is effective in controlling the development process to assure quality of the DCPP PPS application.
System Safety - Verify that the ALS system safety plans and the plans and procedures used during the safety analysis activities of the DCPP PPS were adequate to determine that the logic implementation is safe to be used in a safety-related application.
Secure Development Environment - Verify that the development environment established for the DCPP PPS system development effort conforms to the requirements of RG 1.152, Revision 3.
Cyber Security - Review of activities associated with addressing system and services acquisition controls as set forth in the licensee's NRC-approved Cyber Security Plan, and in accordance with Section 73.54, "Protection of digital computer and communication systems and networks," of Title 10 of the Code of Federal Regulations (10 CFR), will be conducted.
INFORMATION NECESSARY FOR THE REGULATORY AUDIT The following documentation and supporting materials will be required for performance of this audit. Hard copies of these documents shall be available for review to the audit team upon arrival at the CSllWestinghouse facilities.
Configuration diagrams for the ALS portion of the DCPP PPS system.
PPS architecture drawings as required to demonstrate required functionality.
- 3 Documentation associated with the how CSllWestinghouse addressed system and services acquisition control requirements obtained from the licensee.
DCPP PPS Management Plan 6116-00000, Revision 3.
CSI Electronics Development Procedure 9000-00311, Revision 4.
CSI FPGA [Field Programmable Gate Array] Development Procedure 9000-00313, Revision 2.
CSI PPS V&V Plan 6116-00003, Revision 1.
DCPP PPS Conceptual Design Document (PPS CDD).
DCPP PPS Replacement System Functional Requirements Specification (PPS FRS) 08-001150SP-001, Revision 7.
CSI DCPP PPS System Requirements Specification WNA-DS-02442-PGE, Revision 3.
DCPP PPS Replacement System Interface Requirements Specification (PPS IRS), Revision 7.
CSI PPS System Design Specification 6116-00011, Revision O.
DCPP PPS ALS-1 02 FPGA Requirements Specification 6116-10201, Revision O.
ALS-102 Design Specification document, 6002-10202, Revision X (most current).
DCPP PPS ALS to ASU Communications Protocol, 6116-00100, Revision X (most current).
DCPP PPS Requirements Traceability Matrix 6116-00059, Revision A.
DCPP PPS Secure Development Environment Vulnerability Assessment.
The audit staff also requires access to the current Requirements Traceability Matrix information in order to observe that applicable functional requirements are correctly implemented in the PPS.
- 4 TEAM ASSIGNMENTS/RESOURCE ESTIMATES The resource estimate for this audit visit is approximately 200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> of direct inspection effort.
The NRC staff performing this audit will be:
NRC/NRR/DE/EICB Richard Stattel-301-415-8472 Rossnyev Alvarado - 301-415-6808 SamirDarbali -301-415-1360 NRC/Region IV/DRS/EB2 Shiattin Makor, 817-200-1507 NRC/NSIR Eric Lee - 301-415-8099 George Simonds - 301-415-0722 Stacy Smith - 301-415-6025 Christopher Chenoweth This audit will be conducted at the CSI/Westinghouse offices in Scottsdale, Arizona. The estimated length of the audit is 4 days.
LOGISTICS The audit will start on the morning of Monday, February 11, 2013, and conclude on the afternoon of Thursday, February 14, 2013.
The tentative schedule for the audit is as follows:
Monday, February 11, 2013 (9:00 a.m. - 5:30 p.m.)
9:00 a.m. - Entrance meeting (NRC staff - purpose of audit; CSI/Westinghouse staff - brief overview of PPS project and facility).
10:00 a.m. - Factory / training facility tour.
1 :00 p.m. - Tentative plan is for the audit team to jointly work on a requirements thread to see an overview of the entire system development process.
Tuesday-Wednesday, February 12-13, 2013 (9:00 a.m. - 5:30 p.m.)
9:00 a.m. - Morning meeting between NRC staff and CSI/Westinghouse to discuss activities and logistics for the day.
- 5 9:30 a.m. - Review of PPS documentation I Interviews with key CSllWestinghouse personnel. NRC staff may work together or individually, as circumstances dictate.
4:30 p.m. - NRC staff internal meeting.
5:00 p.m. (as needed) - NRC staff and CSllWestinghouse to discuss any observations from the day Thursday, February 14.2013 (9:00 a.m. - 5:30 p.m.)
9:00 a.m. - Morning meeting between NRC staff and CSllWestinghouse to discuss activities and logistics for the day.
3:00 p.m. - NRC staff internal meeting - identification I resolution of any open items.
4:00 p.m. - Exit meeting (NRC staff - general overview of observations and identification of any open items)
DELIVERABLES At the conclusion of the audit, the NRC staff will conduct an exit briefing and will provide a summary of audit results in each subject area defined in the audit scope.
The NRC regulatory audit report and a separate audit report for cyber security will be issued by April 15, 2013. The Secure Development and Operational Environment (SDOE) portion of the regulatory audit report will be handled as Official Use Only (OUO) information.
REFERENCES Licensee Documentation:
DCPP PPS License Amendment Request dated October 26, 2011 (ADAMS Accession No. ML113070457).
DCPP PPS System Replacement Diversity & Defense-in-Depth Assessment Topical Report, Revision 1.
Process Protection System (PPS) Replacement Concept, Requirements, and Licensing Phase 1 Project Plan, Revision 1.
DCPP PPS System Quality Assurance Plan (SyQAP), Revision O.
DCPP PPS System Verification and Validation Plan (SyWP), Revision O.
SCMP 36-01 Software Configuration Management Plan (SCMP), Revision O.
PG&E Letter DCL-11-123, Enclosure, Security Related Information to Support Process Protection System Replacement Amendment Request 11-07, dated December 20, 2011 (ADAMS Accession No. ML113610535).
- 6 NRC Guidance:
NUREG-0800, "Review of Safety Analysis Reports for Nuclear Power Plants,"
Chapter 7, "Instrumentation and Controls."
Regulatory Guide 1.152, Revision 3, "Criteria for Use of Computers in Safety Systems of Nuclear Power Plants," July 2011 (ADAMS Accession No. ML102870072).
Regulatory Guide 1.153, Revision 1, "Criteria for Safety Systems," June 1996 (ADAMS Accession No. ML003740022).
Regulatory Guide 1.168, Revision 1, "Verification, Validation, Reviews, and Audits for Digital Computer Software Used in Safety Systems of Nuclear Power Plants," February 2004 (ADAMS Accession No. ML040410189).
Regulatory Guide 1.169, "Configuration Management Plans for Digital Computer Software Used in Safety Systems of Nuclear Power Plants," September 1997 (ADAMS Accession No. ML003740105).
Regulatory Guide 1.173, "Developing Software Life Cycle Processes for Digital Computer Software Used in Safety Systems of Nuclear Power Plants,"
September 1997 (ADAMS Accession No. ML003740101).
Regulatory Guide 5.71, "Cyber Security Programs for Nuclear Facilities," January 2010 (ADAMS Accession No. ML090340159).
Nuclear Energy Institute, NEI 08-09, Revision 6, "Cyber Security Plan for Nuclear Power Reactors," April 2010 (ADAMS Accession No. ML101180437).
Industry Standards:
IEEE Std 7-4.3.2-2003, "IEEE Standard Criteria for Digital Computers in Safety Systems of Nuclear Power Generating Stations."
IEEE Std 603-1991, "IEEE Standard Criteria for Safety Systems for Nuclear Power Generating Stations."
IEEE Std 828-1990, "IEEE Standard for Software Configuration Management Plans."
IEEE Std 829-1998, "IEEE Standard for Software Test Documentation."
American National Standards Institute (ANSI)IIEEE Std 1008-1987, "IEEE Standard for Software Unit Testing."
IEEE Std 1012-1998, "IEEE Standard for Software Verification and Validation."
- 7 IEEE Std 1028-1997, "IEEE Standard for Software Reviews and Audits,"
ANSI/IEEE Std 1042-1987, "IEEE Guide to Software Configuration Management."
IEEE Std 1074-1995, "IEEE Standard for Developing Software Life Cycle Processes,"
ML13029A667 Sincerely, IRN Joseph M. Sebrosky, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation OFFICE NRRJDORULPL4IPM NRRJDORULPL4/LA NRRJDEIEICB/BC NRRJDORULPL4IBC NRRJDORULPL4/PM !
NAME JSebrosky JBurkhardt JThorp MMarkley JSebrosky DATE 1/30/13 1/30/13 1/31/13 2/1113 1/31/13