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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
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May 1, 2006 MEMORANDUM TO: David Terao, Chief Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Alan B. Wang, Project Manager /RA/
Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
SUMMARY
OF MARCH 16, 2006, MEETING WITH PACIFIC GAS AND ELECTRIC COMPANY (PG&E) ON DIGITAL UPGRADE PROJECT (TAC NOS. MD0385 and MD0386)
On March 16, 2006, the Nuclear Regulatory Commission (NRC) staff conducted a meeting with PG&E to discuss a digital upgrade project for Diablo Canyon Power Plant, Units 1 and 2 (DCPP). This meeting had an open and closed session.
PG&E stated that it had proposed this meeting to start a dialog with the NRC staff to discuss its digital upgrade project for the DCPP. PG&E wanted to establish some lines of communication with the staff on this future upgrade. Allen Howe stated that the NRC agreed to this meeting to gather information about PG&Es digital upgrade project and that no decisions about the scope or acceptability of the project would be made as a result of this meeting.
PG&E explained the need for the upgrade and its long-term strategy. PG&E noted that this would be a hybrid system for a time during installation. There are too many systems affected for them all to be changed in a single outage, and, therefore, there will be a transitional period wherein some but not all of the new equipment will be installed. There would be some limited technical specification changes required. The amendment for these changes is scheduled to be submitted in July 2007. The replacement is currently scheduled for the fall of 2009 for Unit 2 and 2010 for Unit 1. However, PG&E stated that NRC acceptance of the proposed architecture is needed before detailed design would start. PG&E is investigating various options for accomplishing this NRC review. PG&E is considering submitting a plant-specific Topical Report or an unreviewed safety question amendment for this purpose. PG&E has proposed to have a technical discussion of the proposed changes onsite this summer when more detail of the digital upgrade project has been defined.
The NRC staff indicated concern over the reduction of protection/control diversity that would result from the proposed use of the same platform design in various protection systems and control systems. The NRC staff also noted that the reduction in the variety of system designs, presented as beneficial from a maintenance and economic standpoint, results in reduced diversity. The NRC staff stated, for example, control and protection systems are typically not subject to common-mode failures, but that the proposed use of the same platform design could introduce the possibility of common-mode failures. Presently, control and protection systems protect safety limits individually. If they are combined and are subject to common-mode
failures, then they will no longer be able to back each other up. The NRC staff pointed out that this reduced diversity could have a negative impact upon the overall level of plant safety. The licensee believes that the consolidation would be benign from a safety standpoint and that this issue will be addressed in its D3 analysis.
The NRC staff thanked the licensee for the presentation and agreed that a followup meeting would be appropriate. Members of the public were not in attendance. A list of attendees is attached. The non-proprietary presentation slides are available in the Agencywide Documents Access and Management System under accession number ML060860251.
Enclosure:
List of Meeting Attendees cc w/encl: See next page Docket Nos. 50-275 and 50-323
failures, then they will no longer be able to back each other up. The NRC staff pointed out that this reduced diversity could have a negative impact upon the overall level of plant safety. The licensee believes that the consolidation would be benign from a safety standpoint and that this issue will be addressed in its D3 analysis.
The NRC staff thanked the licensee for the presentation and agreed that a followup meeting would be appropriate. Members of the public were not in attendance. A list of attendees is attached. The non-proprietary presentation slides are available in the Agencywide Documents Access and Management System under accession number ML060860251.
Enclosure:
List of Meeting Attendees cc w/encl: See next page Docket Nos. 50-275 and 50-323 DISTRIBUTION:
PUBLIC RidsNrrDeEicb (AHowe) RJasinski LPLIV Reading PRebstock, NRR/ADES MWaterman, NRR/ADES RidsNrrDorl PLoeser, NRR/ADES BKemper, RES RidsNrrDorlLpl4 CDoutt, NRR/ADRA SArndt, RES RidsNrrPMAWang JBongara, NRR/ADRO RidsOgcRp MChiramal, NRR/ADES RidsAcrsAcnwMailCenter ACCESSION NO.: NRC-001 OFFICE NRR/LPL4/PM NRR/LPL4/LA NRR/DE/EICB/BC NRR/LPL4/BC NAME AWang;mxr4 LFeizollahi AHowe (w/edits) DTerao DATE 4/28/06 4/27/06 4/26/2006 5/1/06 OFFICIAL RECORD COPY
MEETING WITH PACIFIC GAS AND ELECTRIC (PG&E)
LIST OF ATTENDEES March 16, 2006 PG&E Westinghouse INVENSYS Altran D. Jacobs J. Mauck C. Scott T. Quinn T. Grozan L. Erin J. Murray T. Harris S. Patterson J. Hefler NRC A. Howe D. Terao A. Wang M. Waterman P. Loeser B. Kemper S. Arndt C. Doutt P. Rebstock J. Bongara M. Chiramal ENCLOSURE
Diablo Canyon Power Plant, Units 1 and 2 cc:
NRC Resident Inspector Richard F. Locke, Esq.
Diablo Canyon Power Plant Pacific Gas & Electric Company c/o U.S. Nuclear Regulatory Commission P.O. Box 7442 P.O. Box 369 San Francisco, CA 94120 Avila Beach, CA 93424 City Editor Sierra Club San Lucia Chapter The Tribune ATTN: Andrew Christie 3825 South Higuera Street P.O. Box 15755 P.O. Box 112 San Luis Obispo, CA 93406 San Luis Obispo, CA 93406-0112 Ms. Nancy Culver Director, Radiologic Health Branch San Luis Obispo State Department of Health Services Mothers for Peace P.O. Box 997414, MS 7610 P.O. Box 164 Sacramento, CA 95899-7414 Pismo Beach, CA 93448 Mr. James D. Boyd, Commissioner Chairman California Energy Commission San Luis Obispo County 1516 Ninth Street (MS 31)
Board of Supervisors Sacramento, CA 95814 1055 Monterey Street, Suite D430 San Luis Obispo, CA 93408 Mr. James R. Becker, Vice President Diablo Canyon Operations Mr. Truman Burns and Station Director Mr. Robert Kinosian Diablo Canyon Power Plant California Public Utilities Commission P.O. Box 3 505 Van Ness, Room 4102 Avila Beach, CA 93424 San Francisco, CA 94102 Jennifer Tang Diablo Canyon Independent Safety Field Representative Committee United States Senator Barbara Boxer ATTN: Robert R. Wellington, Esq. 1700 Montgomery Street, Suite 240 Legal Counsel San Francisco, CA 94111 857 Cass Street, Suite D Monterey, CA 93940 Mr. John S. Keenan Senior Vice President - Generation Regional Administrator, Region IV and Chief Nuclear Officer U.S. Nuclear Regulatory Commission Pacific Gas and Electric Company Harris Tower & Pavillion Diablo Canyon Power Plant 611 Ryan Plaza Drive, Suite 400 P.O. Box 770000, Mail Code B32 Arlington, TX 76011-8064 San Francisco, CA 94177-0001
