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Category:Memoranda
MONTHYEARML23265A1902023-09-26026 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 ML23046A0292023-02-23023 February 2023 Timely Renewal Exemption 5 Day Memorandum ML22147A0932022-06-0606 June 2022 2021 Annual Assessment Public Meeting Summary ML22131A1592022-05-11011 May 2022 Reply to the Nrc'S Response to the Office of the Inspector General'S (OIG) Event Inquiry Into the Nrc'S Oversight of the Auxiliary Feedwater System at Diablo Canyon Nuclear Power Plant, OIG Case No. 20-025 ML22108A1672022-05-0303 May 2022 Staff Assessment of OIG Event Inquiry Into the Nrc'S Oversight AFW at Diablo Canyon (OIG Case No. 20-025) ML22109A1792022-05-0303 May 2022 Response OIG Special Inquiry Into Nrc'S Oversight AFW at Diablo Canyon (OIG Case No. 20-025) ML21146A1852021-06-28028 June 2021 DC RFI 2021401 ML21146A185 ML21140A3892021-05-24024 May 2021 Riv Column 1 EOC 2020 Public Meeting Summary ML21060B1822021-03-0101 March 2021 Memorandum: 1-26-21 Diablo Canyon Renewal Pre-Application Meeting Summary 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 ML19182A3562019-07-23023 July 2019 Quarterly Report on the Status of Public Petitions Under Title 10 of the Code of Federal Regulations, Section 2.206 - April 1 to June 30, 2019 ML18298A0762018-10-26026 October 2018 Notice of Forthcoming Closed Meeting with Pacific Gas and Electric Company to Discuss Security-Related Information for Diablo Canyon Power Plant, Units 1 and 2 ML18173A0082018-06-20020 June 2018 Cancelling Numerous Inspection Report Numbers ML18131A0482018-05-11011 May 2018 Memorandum to File Environmental Assessment and Finding of No Significant Impact for Pacific Gas and Electric Company'S Decommissioning Funding Plan Submitted in Accordance with 10 CFR 72.30(b) for the Diablo Canyon Independent Spent Fuel S ML16119A5002016-04-29029 April 2016 Notice of Forthcoming Closed Meeting with Pacific Gas & Electric Company to Discuss Proposed Change to Defensive Strategy and 10 CFR 50.54(p) Documentation for Reduction in Minimum Staffing Requirements at Diablo Canyon ML16088A2042016-03-28028 March 2016 Memo T Bowers from s Ruffin, Technical Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations W/ Encl 2 (Template) ML16088A2052016-03-28028 March 2016 Enclosure 1 - (72.30 DFP Reviews to Be Completed 2015) - Memo T Bowers from s Ruffin, Technial Assistance Requests - Review 2015 Tri-Annual Decommissioning Funding Plans for Multiple Independent Spent Fuel Storage Installations ML16029A2322016-03-16016 March 2016 LTR-15-0337-1 - Diablo Canyon Power Plant, Units 1 and 2 - Closure of 10 CFR 2.206 Petition from Bullard High School Students (CAC Nos. MF6515 and MF6516) 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. ML14344A6302014-12-15015 December 2014 Close-out letter-California Facilities Preemption Safety Evaluation ML14167A4922014-07-0303 July 2014 Summary of June 5, 2014, Conference Call to Discuss the Status of the License Renewal Application Review of the Diablo Canyon Nuclear Power Plant, Units 1 and 2 ML14022A1202014-06-23023 June 2014 Memorandum to File, Review of Revision 21 of Final Safety Analysis Report Update ML14162A4582014-06-12012 June 2014 Pacific Gas and Electric Company Diablo Canyon Power Plant Units 1 and 2, Regulatory Audit in Support of the License Amendment Request to Implement Risk-Informed, Performance-Based, Fire Protection Program as Allowed by Title 10 of the Code ML13339A4282014-04-28028 April 2014 Transmittal Memorandum for Regulatory Audit Report for the August 6, 2013 Through August 8, 2013 Cyber Security Pilot Study at Dcnpp Avila Beach, CA ML13312A6462013-11-25025 November 2013 Meeting Notice with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML13290A2272013-10-18018 October 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 ML13263A1922013-09-24024 September 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 ML13260A0052013-09-18018 September 2013 10/2/13 Notice 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 ML13246A4162013-09-0505 September 2013 9/24/13 - Notice 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 ML13246A4262013-09-0505 September 2013 Notice of 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 ML13246A4072013-09-0505 September 2013 9/25/13 Notice of Forthcoming Pre-Application Meeting to Discuss Emergency Core Cooling System Evaluations for License Amendment Request at Diablo Canyon, Units 1 and 2 ML13246A2622013-09-0404 September 2013 9/18/13 Notice of Forthcoming 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 ML13179A0622013-07-0909 July 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 ML13163A0242013-06-12012 June 2013 6/26/13 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 ML13126A0872013-05-0707 May 2013 Notice of Forthcoming 5/29/13 Meeting with Pacific Gas and Electric Company to Discuss Digital Replacement of Process Protection System at Diablo Canyon Power Plant, Units 1 and 2 ML13101A2782013-04-24024 April 2013 Transmittal Memo for Regulatory Audit Report for the February 11-14, 2013 Cyber Security Pilot Study at the CS Innovation Facility in Scottsdale, Arizona ML13081A0742013-04-11011 April 2013 Summary Conference Call Between Pacific and Electric Co., and NRC Regarding Verbal Authorization of Relief Request Rep-1 U2, Revision 2 ML13074A1182013-03-15015 March 2013 3/27/13 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 ML13052A5512013-02-21021 February 2013 Preapplication Meeting with Pacific Gas and Electric, License Amendment Request to Adopt NFPA-805 Performance-Based Standard for Fire Protection for LWR Generating Plants, at Diablo Canyon, Units 1 and 2 ML13028A2022013-02-0404 February 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 ML13030A2462013-01-30030 January 2013 2/12/13 Forthcoming Preapplication Meeting with Pacific Gas and Electric Company to Discuss License Amendment Requests for Degraded Voltage Protection and Control Room Dose Analysis of Record at Diablo Canyon, Units 1 and 2 ML13017A1572013-01-15015 January 2013 Diablo Canyon - January Hearing File Update ML12354A5392012-12-20020 December 2012 1/24/2013 - Notice of Meeting with Pacific Gas and Electric to Discuss Diablo Canyon, Units 1 and 2 License Amendment Request to Revise FSAR Update Related to Delayed Access Offsite Power Circuit to Conform with GDC 17 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 ML12348A1082012-12-18018 December 2012 Notice of 1/15/2013 Preapplication Meeting with Pacific Gas and Electric Company to Discuss License Amendment Request to Revise Diesel Generator Surveillance Requirements for Diablo Canyon, Units 1 and 2 ML12338A0762012-12-0404 December 2012 Notice of Forthcoming Preapplication Meeting on 12/18/12 with Pacific Gas and Electric Company to Discuss Leak Before Break Assumptions Used in 10 CFR 50.46 Evaluation for Diablo Canyon, Units 1 and 2 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 ML12297A1992012-11-19019 November 2012 Revised Response to Task Interface Agreement Seismic Qualification Current Licensing and Design Basis, TIA 2011-010 (TIA 2012-012) 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 2023-09-26
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June 23, 2014 MEMORANDUM TO: Michael T. Markley, Chief Plant Licensing IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Peter J. Bamford, Project Manager /RA/
Plant Licensing IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
DIABLO CANYON POWER PLANT, UNITS 1 AND 2 - REVIEW OF FINAL SAFETY ANALYSIS REPORT UPDATE, REVISION 21 (TAC NOS. MF2945 AND MF2946)
This memorandum documents the in-office review of Revision 21 to the Final Safety Analysis Report (FSAR) Update for Diablo Canyon Power Plant (DCPP), Units 1 and 2, dated September 16, 2013 (not publicly available). The FSAR Update was submitted by Pacific Gas and Electric Company (PG&E, the licensee), in accordance with Title 10 of the Code of Federal Regulations (10 CFR) 50.71(e). PG&E follows the guidance of Nuclear Energy Institute (NEI) 98-03, Revision 1, Guidelines for Updating Final Safety Analysis Reports, and NEI 99-04, Revision 0, Guidelines for Managing NRC Commitment Changes.
The time requirements for FSAR submittals are stated in 10 CFR 50.71(e)(4). Revisions must be filed annually or 6 months after each refueling outage provided the interval between successive updates does not exceed 24 months. In its letter dated December 8, 1997, the licensee requested an exemption from the time requirements stated in 10 CFR 50.71(e)(4) for DCPP, Units 1 and 2. As discussed in the licensees exemption request, DCPP, Units 1 and 2, have a common FSAR. The rule would require FSAR updates within 6 months of each refueling outage, resulting in required FSAR updates every 12 months. As such, the licensee requested an exemption to allow the updates of the FSAR to be submitted within 6 months after each DCPP, Unit 2, refueling outage, but not to exceed 24 months from the last update. The Nuclear Regulatory Commission (NRC) staff approved the exemption in a letter dated March 12, 1998 (ADAMS Accession No. ML022400141). DCPP, Unit 2, completed its last refueling outage on March 23, 2013. The previous update of the DCPP FSAR, Revision 20, was submitted on November 16, 2011 (ADAMS Accession No. ML11332A181). Therefore, the September 16, 2013, submittal date for Revision 21 of the DCPP FSAR meets the requirements approved in the exemption since the submittal was within 6 months of the last DCPP, Unit 2, refueling outage and does not exceed 24 months from the last FSAR update.
As stated in the licensees letter dated September 16, 2013, Revision 21 of the DCPP FSAR contains changes to reflect the plant configuration as of March 23, 2013. This meets the requirement in 10 CFR 50.71(e)(4) which states that the revisions must reflect all changes up to a maximum of 6 months prior to the date of filing.
M. Markley Amendments Revision 21 covered changes to the FSAR Update during the period June 6, 2011, through September 16, 2013. Each of the license amendments issued during the period were reviewed for impacts on the FSAR Update and included Amendment Nos. 211/213 through 216/218 (for Units 1 and 2, respectively). The following three amendments were identified which resulted in impacts on the FSAR Update:
- Amendment Nos. 211/213, dated March 29, 2012 (ADAMS Accession No. ML120790338), modified FSAR Update Sections 8.1.4.3, Regulatory Guides, and 8.3.1.1.13.1, Diesel Generator Unit Description, to identify an exception to Revision 0 of Regulatory Guide 1.9, Application and Testing of Safety-Related Diesel Generators in Nuclear Power Plants;
- Amendment Nos. 212/214, dated October 31, 2012 (ADAMS Accession No. ML120300114), modified FSAR Update Sections 15.2.7.3, Results, and 15.2.16, References, to adopt a new analysis methodology for establishing the reduced power range neutron flux high setpoint for one inoperable main steam safety valve; and
- Amendment Nos. 214/216, dated January 9, 2013 (ADAMS Accession No. ML12345A379), modified FSAR Update Section 4.3.2.2, Power Distribution, to allow the use of the Best Estimate Analyzer for the Core Operations-Nuclear (BEACON) Power Distribution Monitoring System methodology, as described in Westinghouse Electric Company LLC's WCAP-12472-P-A, Addendum 1-A, BEACON Core Monitoring and Operation Support System, January 2000.
The FSAR Update changes for Amendment Nos. 211/213 were not apparent in Revision 21. The licensee had reorganized the FSAR Update, removing the numbered Sections 8.1.4.3 and 8.3.1.1.13.1. However, the licensee included the amendments language in Section 8.3.1.1.6.3.13, Safety Guide 9, March 1971 - Selection of Diesel Generator Set Capacity for Standby Power Supplies, and Section 8.3.1.1.6.1.13, Safety Guide 9, March 1971 - Selection of Diesel Generator Set Capacity for Standby Power Supplies. With the inclusion of this exception in these two sections, the NRC staff concludes that the FSAR Update is consistent with the updates stated in Amendment Nos. 211/213.
Inspection Reports The inspection reports (IR) for the appropriate period were reviewed. The first, IR 2012004, involved a non-cited violation of Appendix B, Criteria V, Instructions, Procedures, and Drawings, after PG&E failed to promptly evaluate the operability of plant structures, systems, and components (SSCs) after a newly discovered local fault line. The IR, dated February 14, 2012 (ADAMS Accession No. ML120450843), indicated a need to update the FSAR Update with the new seismic information. The second, IR 2011005, dated November 13, 2012 (ADAMS Accession No. ML12318A385), involved a Severity Level IV violation where the licensee failed to update the FSAR Update with information describing how plant SSCs meet 10 CFR Part 50,
M. Markley Appendix A. In both cases, the NRC staff confirmed that Revision 21 of the FSAR Update incorporated the corrective actions to address both these IRs.
Licensee Event Reports The licensee event reports (LERs) for the appropriate period were reviewed. One LER documented events that listed corrective actions including updating the FSAR Update. This LER, dated June 3, 2013 (ADAMS Accession No. ML13155A238), documented an event in which the licensee identified an unanalyzed condition due to a nonconservative change in the FSAR Update Chapter 15, Accident Analyses, which would have resulted in a higher received radiological dose received by control room operators during an accident, but would not exceed General Design Criteria 19. The LER described the corrective actions taken to address the event and NRC staff confirmed that Revision 21 of the FSAR Update incorporated the corrective actions described in the LER.
The NRC staffs sampling review of the FSAR Update, Revision 21 included the applicable amendments, IRs, and LERs. The staff did not find any commitments to modify the FSAR Update in its review. Based on the review, the staff concludes that the FSAR Update, Revision 21 was submitted consistent with the requirements in 10 CFR 50.71(e).
Docket Nos. 50-275 and 50-323
ML13155A238), documented an event in which the licensee identified an unanalyzed condition due to a nonconservative change in the FSAR Update Chapter 15, Accident Analyses, which would have resulted in a higher received radiological dose received by control room operators during an accident, but would not exceed General Design Criteria 19. The LER described the corrective actions taken to address the event and NRC staff confirmed that Revision 21 of the FSAR Update incorporated the corrective actions described in the LER.
The NRC staffs sampling review of the FSAR Update, Revision 21 included the applicable amendments, IRs, and LERs. The staff did not find any commitments to modify the FSAR Update in its review. Based on the review, the staff concludes that the FSAR Update, Revision 21 was submitted consistent with the requirements in 10 CFR 50.71(e).
Docket Nos. 50-275 and 50-323 DISTRIBUTION:
PUBLIC LPL4-1 R/F RidsNrrDorlLpl4-1 Resource RidsNrrLAJBurkhardt Resource RidsNrrPMDiabloCanyon Resource RidsRgn4MailCenter Resource ADAMS Accession No. ML14022A120 OFFICE NRR/DORL/LPL4-2/PM NRR/DORL/LPL4-1/PM NRR/DORL/LPL4-1/LA NRR/DORL/LPL4-1/BC NRR/DORL/LPL4-1/PM NAME MOrenak PBamford JBurkhardt MMarkley PBamford DATE 6/17/14 6/17/14 6/17/14 6/23/14 6/23/14