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| | issue date = 10/07/2015 | | | issue date = 10/07/2015 |
| | title = Summary of the Severe Accident Mitigation Alternatives Site Audit Related to the Diablo Canyon Power Plant, Units 1 and 2 License Renewal Review | | | title = Summary of the Severe Accident Mitigation Alternatives Site Audit Related to the Diablo Canyon Power Plant, Units 1 and 2 License Renewal Review |
| | author name = Wentzel M J | | | author name = Wentzel M |
| | author affiliation = NRC/NRR/DLR/RPB2 | | | author affiliation = NRC/NRR/DLR/RPB2 |
| | addressee name = Halpin E D | | | addressee name = Halpin E |
| | addressee affiliation = Pacific Gas & Electric Co | | | addressee affiliation = Pacific Gas & Electric Co |
| | docket = 05000275, 05000323 | | | docket = 05000275, 05000323 |
| | license number = | | | license number = |
| | contact person = Wentzel M J, NRR/DLR,415-6459 | | | contact person = Wentzel M, NRR/DLR,415-6459 |
| | case reference number = DLR-15-0458, TAC MF4019, TAC MF4020, FOIA/PA-2016-0438 | | | case reference number = DLR-15-0458, TAC MF4019, TAC MF4020, FOIA/PA-2016-0438 |
| | document type = Letter, Meeting Summary | | | document type = Letter, Meeting Summary |
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| =Text= | | =Text= |
| {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 7, 2015 | | {{#Wiki_filter:UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 7, 2015 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 |
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| Mr. Edward D. Halpin Senior Vice President and Chief Nuclear Officer Pacific Gas and Electric Company
| | ==SUBJECT:== |
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| Diablo Canyon Power Plant P.O. Box 56, Mail Code 104/6
| | ==SUMMARY== |
| | | OF THE SEVERE ACCIDENTS MITIGATION ALTERNATIVES SITE AUDIT RELATED TO THE ENVIRONMENTAL REVIEW OF THE DIABLO CANYON POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC NOS. MF4019 AND MF4020) |
| Avila Beach, CA 93424
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| ==SUBJECT:== | |
| SUMMARY OF THE SEVERE ACCIDENTS MITIGATION ALTERNATIVES SITE AUDIT RELATED TO THE ENVIRONMENTAL REVIEW OF THE DIABLO CANYON POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC NOS. MF4019 AND MF4020)
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| ==Dear Mr. Halpin:== | | ==Dear Mr. Halpin:== |
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| On September 21-23, 2015, a review team consisting of staff from the U.S. Nuclear Regulatory Commission (NRC) and contractors from the Pa cific Northwest National Laboratory participated in a site audit in San Luis Obispo, California, related to the severe accidents mitigation alternatives (SAMA) environmental review of the Diablo Canyon Power Plant (DCPP), Units 1 and 2, license renewal application. The primary goal of the site visit was to review documentation and gather information to ensure t hat the environmental requirements for license renewal, as codified in Title 10 of the Code of Federal Regulations Part 51 were met, in accordance with the issued audit plan (ML15233A518). The enclosure is a list of representatives from NRC and personnel from Pacific Gas and Electric (PG&E) and its contractors who participated in the site audit. | | On September 21-23, 2015, a review team consisting of staff from the U.S. Nuclear Regulatory Commission (NRC) and contractors from the Pacific Northwest National Laboratory participated in a site audit in San Luis Obispo, California, related to the severe accidents mitigation alternatives (SAMA) environmental review of the Diablo Canyon Power Plant (DCPP), Units 1 and 2, license renewal application. The primary goal of the site visit was to review documentation and gather information to ensure that the environmental requirements for license renewal, as codified in Title 10 of the Code of Federal Regulations Part 51 were met, in accordance with the issued audit plan (ML15233A518). The enclosure is a list of representatives from NRC and personnel from Pacific Gas and Electric (PG&E) and its contractors who participated in the site audit. |
| | The audit began on September 21, 2015, with an entrance meeting to introduce participants and discuss logistics of the audit. Following the entrance meeting, the NRC environmental review team and PG&E discussed the following topics relative to the SAMA analysis: (1) Level 1 Probabilistic Risk Assessment (PRA), (2) Level 2 model PRA, (3) external events, (4) Level 3 consequence analysis, (5) SAMA identification and screening, (6) cost-benefit analysis, and (7) consideration of potentially lower cost alternative SAMAs. |
| | During the exit meeting at the conclusion of the site audit, the NRC environmental review team summarized the status of the review with PG&E. Most of the team's questions identified in the audit plan or during the audit were answered through the conduct of the audit. |
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| The audit began on September 21, 2015, with an entrance meeting to introduce participants and discuss logistics of the audit. Following the entrance meeting, the NRC environmental review team and PG&E discussed the following topics relative to the SAMA analysis: (1) Level 1 Probabilistic Risk Assessment (PRA), (2) Level 2 model PRA, (3) external events, (4) Level 3 consequence analysis, (5) SAMA identification and screening, (6) cost-benefit analysis, and (7) consideration of potentially lower cost alternative SAMAs.
| | E. Halpin NRC staff is preparing requests for additional information (RAIs), which will be issued in a subsequent letter. While the NRC review team did not identify any significant environmental issues during its site audit, the environmental review of the DCPP license renewal application is ongoing, and thus, any additional information necessary to support the review would be formally requested via the RAI process. |
| | | Sincerely, |
| During the exit meeting at the conclusion of the site audit, the NRC environmental review team summarized the status of the review with PG&E. Most of the team's questions identified in the audit plan or during the audit were answered through the conduct of the audit.
| | /RA/ |
| | | Michael J. Wentzel, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323 |
| NRC staff is preparing requests for additional information (RAIs), which will be issued in a subsequent letter. While the NRC review team did not identify any significant environmental issues during its site audit, the environmental review of the DCPP license renewal application is ongoing, and thus, any additional information necessary to support the review would be formally requested via the RAI process. | |
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| Sincerely, | |
| /RA/ Michael J. Wentzel, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation
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| Docket Nos. 50-275 and 50-323 | |
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| ==Enclosure:== | | ==Enclosure:== |
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| As stated | | As stated cc w/encl: Listserv |
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| cc w/encl: Listserv
| | ML15275A094 *concurrence via email OFFICE LA:DLR* PM:RPB2:DLR BC:RPB2:DLR PM:RPB2:DLR NAME IBetts MWentzel JDanna MWentzel DATE 10/ 5 /15 10/ 6 /15 10/ 7 /15 10/ 7 /15 |
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| ML15275A094 *concurrence via email OFFICE LA:DLR* PM:RPB2:DLRBC:RPB2:DLR PM:RPB2:DLR NAME IBetts MWentzel JDanna MWentzel DATE 10/ 5 /15 10/ 6 /15 10/ 7 /15 10/ 7 /15
| | Letter from M. Wentzel to E. Halpin dated October 7, 2015 |
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| Letter from M. Wentzel to E. Halpin dated October 7, 2015 | |
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| ==SUBJECT:== | | ==SUBJECT:== |
| SUMMARY OF THE SEVERE ACCIDENTS MITIGATION ALTERNATIVES SITE AUDIT RELATED TO THE ENVIRONMENTAL REVIEW OF THE DIABLO CANYON POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC NOS. MF4019 AND MF4020)
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| DISTRIBUTION
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| RidsNrrDlrRpb1 Resource
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| RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource
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| RidsOgcMailCenter Resource RidsNrrPMDiabloCanyon Resource ---------------------
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| MWentzel
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| JDanna RPlasse YDiaz-Sanabria SLingam CKanatas, OGC
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| JLindell, OGC
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| THipschman, SRI
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| JReynoso, RI GMiller, RIV DMcIntyre, OPA LUselding, OPA WMaier, RIV | | ==SUMMARY== |
| | OF THE SEVERE ACCIDENTS MITIGATION ALTERNATIVES SITE AUDIT RELATED TO THE ENVIRONMENTAL REVIEW OF THE DIABLO CANYON POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC NOS. MF4019 AND MF4020) |
| | DISTRIBUTION: |
| | HARD COPY: |
| | DLR RF E-MAIL: |
| | PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource RidsNrrDlrRsrg Resource RidsOgcMailCenter Resource RidsNrrPMDiabloCanyon Resource |
| | --------------------- |
| | MWentzel JDanna RPlasse YDiaz-Sanabria SLingam CKanatas, OGC JLindell, OGC THipschman, SRI JReynoso, RI GMiller, RIV DMcIntyre, OPA LUselding, OPA WMaier, RIV AMoreno, OCA |
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| AMoreno, OCA ENCLOSURE LIST OF PARTICIPANTS DIABLO CANYON POWER PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW SEVERE ACCIDENTS MITIGATION ALTERNATIVES SITE AUDIT September 21-23, 2015 PARTICIPANTS ORGANIZATION Jerry Dozier U.S. Nuclear Regulatory Commission (NRC)
| | LIST OF PARTICIPANTS DIABLO CANYON POWER PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW SEVERE ACCIDENTS MITIGATION ALTERNATIVES SITE AUDIT September 21-23, 2015 PARTICIPANTS ORGANIZATION Jerry Dozier U.S. Nuclear Regulatory Commission (NRC) |
| Michael Wentzel NRC Bruce Schmitt Pacific Northwest National Laboratory (PNNL) | | Michael Wentzel NRC Bruce Schmitt Pacific Northwest National Laboratory (PNNL) |
| Bob Schmidt PNNL Nathan Barker Pacific Gas and Electric (PG&E) Al Bates PG&E Terry Grebel PG&E Tom Jones PG&E Dave Miklash PG&E Michelle Olsofsky PG&E John Pyo PG&E Jearl Strickland PG&E David Bidwell ERIN Engineering and Research, Inc. (ERIN) | | Bob Schmidt PNNL Nathan Barker Pacific Gas and Electric (PG&E) |
| Alex Duvall ERIN Donald MacLeod ERIN}} | | Al Bates PG&E Terry Grebel PG&E Tom Jones PG&E Dave Miklash PG&E Michelle Olsofsky PG&E John Pyo PG&E Jearl Strickland PG&E David Bidwell ERIN Engineering and Research, Inc. (ERIN) |
| | Alex Duvall ERIN Donald MacLeod ERIN ENCLOSURE}} |
Letter Sequence Other |
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MONTHYEARML15037A5402015-02-24024 February 2015
Project Manager Change for the License Renewal of Diablo Canyon Power Plant, Units 1 and 2, (TAC Nos. MF4019 and MF4020)
Project stage: Other
ML15202A0982015-07-21021 July 2015
Slides for the August 5, 2015 Diablo Canyon Power Plant License Renewal Application Public Scoping Meeting
Project stage: Meeting
ML15233A5182015-08-28028 August 2015
License Renewal Environmental Site Audit Regarding Diablo Canyon Power Plant, Units 1 and 2-SAMA
Project stage: Other
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
Project stage: Meeting
ML15243A5822015-09-0808 September 2015
License Renewal Environmental Site Audit Regarding Diablo Canyon Power Plant, Units 1 and 2
Project stage: Other
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
Project stage: Other
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
Project stage: Other
ML15287A1652015-10-23023 October 2015
Requests for Additional Information Related to the Diablo Canyon LRA Environmental Review - SAMA
Project stage: RAI
DCL-15-136, Response to Requests for Information Related to the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives2015-11-12012 November 2015
Response to Requests for Information Related to the Environmental Review of the License Renewal Application - Severe Accident Mitigation Alternatives
Project stage: Response to RAI
ML15310A0692015-11-24024 November 2015
Summary of Telephone Conference Call Held Between NRC and Pg&Amp;E Concerning the RAIs Pertaining to the DCPP LRA Environmental Review
Project stage: RAI
ML16271A4392016-10-0707 October 2016
Project Manager Change for the License Renewal of Diablo Canyon Power Plant, Units 1 and 2
Project stage: Other
2015-02-24
[Table View] |
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Category:Letter
MONTHYEARIR 05000275/20230042024-02-0909 February 2024
Integrated Inspection Report 05000275/2023004 and 05000323/2023004
ML24002B1802024-01-29029 January 2024
LRA Audit Plan
DCL-24-010, Nuclear Material Transaction Report for New Fuel2024-01-29029 January 2024
Nuclear Material Transaction Report for New Fuel
ML24018A0152024-01-29029 January 2024
License Renewal Application Review Schedule Letter
ML24017A2492024-01-24024 January 2024
Letter to Neil Peyron, Chairman, Tule River Tribe, Re. Diablo Canyon
ML24024A1752024-01-24024 January 2024
Letter to Tribal Council San Luis Obispo County Chumash Indians on Section 106 Consultation and Scoping Process for the Environmental Review of Diablo Canyon Nuclear Plant, Unit 1 and 2 License Renewal Application
ML24003A8902024-01-24024 January 2024
Letter to P. Gerfen - Diablo Canyon Notice of Intent to Conduct Scoping and Prepare an Environmental Impact Statement
ML24012A1582024-01-24024 January 2024
Letter to Hon. Violet Sage Walker, Chairwoman Northern Chumash Tribal Council on Section 106 Consultation and Scoping Process for the Environmental Review of Diablo Canyon Nuclear Plant, Unit 1 and 2 License Renewal Application
ML24012A0062024-01-24024 January 2024
Achp Scoping Letter for Diablo Canyon License Renewal
ML24012A0552024-01-24024 January 2024
Letter to J. Polanco, Shpo, on Request to Initiate Section 106 Consultation and Scooping Process for the Environmental Review of Diablo Canyon Nuclear Plant, Unit 1 and 2 License Renewal Application
ML24024A1562024-01-24024 January 2024
Letter to Hon. Gabe Frausto, Coastal Band of Chumash Indians on Section 106 Consultation and Scoping Process for the Environmental Review of Diablo Canyon Nuclear Plant, Unit 1 and 2 License Renewal Application
ML24024A1652024-01-24024 January 2024
Letter to Hon. Mona Olivas Tucker, Yak Tityu Tityu Yak Tilhini Northern Chumas Indians on Section 106 Consultation and Scoping Process for the Environmental Review of Diablo Canyon Nuclear Plant, Unit 1 and 2 License Renewal Application
ML24024A1612024-01-24024 January 2024
Letter Hon. Gary Pierce, Salian Tribe of Monterey and San Luis Obispo Counties on Section 106 Consultation and Scoping Process for the Environmental Review of Diablo Canyon Nuclear Plant, Unit 1 and 2 License Renewal Application
ML24012A0362024-01-24024 January 2024
Request to Initiate Section 106 Consultation and Scoping Process for the Environmental Review License Renewal Application
DCL-24-009, Nuclear Material Transaction Report for New Fuel2024-01-17017 January 2024
Nuclear Material Transaction Report for New Fuel
DCL-24-008, Schedule Considerations for Review of the DCPP License Renewal Application2024-01-17017 January 2024
Schedule Considerations for Review of the DCPP License Renewal Application
DCL-24-004, Supplement to License Amendment Request 23-01 Revision to Technical Specifications to Adopt Risk-Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b2024-01-15015 January 2024
Supplement to License Amendment Request 23-01 Revision to Technical Specifications to Adopt Risk-Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b
IR 05000275/20230112024-01-12012 January 2024
NRC License Renewal Phase 1 Inspection Report 05000275/2023011
DCL-23-129, Nuclear Material Transaction Report for New Fuel2023-12-27027 December 2023
Nuclear Material Transaction Report for New Fuel
ML23326A0122023-12-21021 December 2023
12-21-23 Letter to the Honorable Byron Donalds from Chair Hanson Responds to Letter Regarding 2.206 Petition to Close Diablo Canyon Nuclear Power Plant, Unit 1
ML23341A0042023-12-19019 December 2023
LRA Acceptance Letter
ML23352A2342023-12-18018 December 2023
Notification of Age-Related Degradation Inspection (05000275/2024014 and 05000323/2024014) and Request for Information
DCL-23-122, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-14014 December 2023
Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation
DCL-23-128, Emergency Plan Update2023-12-13013 December 2023
Emergency Plan Update
ML23355A0952023-12-0808 December 2023
License Renewal Application Online Reference Portal
DCL-23-125, Core Operating Limits Report for Unit 1 Cycle 252023-12-0606 December 2023
Core Operating Limits Report for Unit 1 Cycle 25
ML23291A2702023-11-28028 November 2023
Letter to Nakia Zavalla, Shpo, the Santa Ynez Band of Chumash Indians; Re., Diablo Canyon ISFSI Initiating Section 106 Consultation
ML23320A2442023-11-28028 November 2023
Letter to Kerri Vera, Director of Department of Environmental Protection, Tule River Tribe; Re., Diablo Canyon ISFSI Initiating Section 106 Consultation
ML23325A1382023-11-27027 November 2023
ISFSI Tribal Letter to San Luis Obispo County Chumash Indians
ML23325A1322023-11-27027 November 2023
ISFSI Tribal Letter to Salian Tribe of Montgomery, San Luis Obispo
ML23325A1332023-11-27027 November 2023
ISFSI Tribal Letter to Yak Tityu Tityu Northern Chumash Indians
ML23307A0062023-11-27027 November 2023
ISFSI Tribal Letter to Northern Chumash Tribal Council
ML24003A7242023-11-27027 November 2023
Independent Safety Committee; Diab Lo Canyon Nuclear Power Plant Operations, Thirty-Third Annual Report on the Safety
ML23325A1292023-11-27027 November 2023
ISFSI Tribal Letter to Coastal Band of Chumash
ML23320A1502023-11-17017 November 2023
Individual Notice of Consideration of Issuance of Amendment to Facility Operating License, Proposed No Significant Hazards Consideration Determination, & Opportunity for Hearing (Exigent Circumstances) (EPID L-2023-LLA-0155) - LTR
DCL-23-121, Supplement to License Amendment Request 23-03, Revision to Technical Specification3.7.8, Auxiliary Saltwater System2023-11-16016 November 2023
Supplement to License Amendment Request 23-03, Revision to Technical Specification3.7.8, Auxiliary Saltwater System
ML23296A0982023-11-15015 November 2023
Notification and Request for Consultation Regarding Pacific Gas and Electric Diablo Canyon Independent Spent Fuel Storage Installation Material License Renewal Request (Docket Number: 72-26)
DCL-23-120, License Amendment Request 23-03 Revision to Technical Specification 3.7.8, Auxiliary Saltwater (Asw) System2023-11-14014 November 2023
License Amendment Request 23-03 Revision to Technical Specification 3.7.8, Auxiliary Saltwater (Asw) System
ML23293A1052023-11-14014 November 2023
Receipt and Availability of License Renewal Application
IR 05000275/20230032023-11-13013 November 2023
Integrated Inspection Report 05000275/2023003 and 05000323/2023003
ML23311A2082023-11-0909 November 2023
Reassignment of U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch IV
DCL-23-118, License Renewal Application2023-11-0707 November 2023
License Renewal Application
ML23318A2102023-10-31031 October 2023
Independent Safety Committee; Thirty-Third Annual Report on the Safety of Diablo Canyon Nuclear Power Plant Operations
DCL-2023-520, Discharge Self-Monitoring at Diablo Canyon Power Plant (DCPP)2023-10-19019 October 2023
Discharge Self-Monitoring at Diablo Canyon Power Plant (DCPP)
DCL-23-103, Independent Spent Fuel Storage Installation - Withdrawal of License Amendment Request 22-01, Request for Approval of Alternative Security Measures for Early Warning System2023-10-13013 October 2023
Independent Spent Fuel Storage Installation - Withdrawal of License Amendment Request 22-01, Request for Approval of Alternative Security Measures for Early Warning System
IR 05000275/20240152023-10-10010 October 2023
Information Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection (050002752024015 and 050003232024015)
2024-02-09
[Table view]
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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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 7, 2015 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:
SUMMARY
OF THE SEVERE ACCIDENTS MITIGATION ALTERNATIVES SITE AUDIT RELATED TO THE ENVIRONMENTAL REVIEW OF THE DIABLO CANYON POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC NOS. MF4019 AND MF4020)
Dear Mr. Halpin:
On September 21-23, 2015, a review team consisting of staff from the U.S. Nuclear Regulatory Commission (NRC) and contractors from the Pacific Northwest National Laboratory participated in a site audit in San Luis Obispo, California, related to the severe accidents mitigation alternatives (SAMA) environmental review of the Diablo Canyon Power Plant (DCPP), Units 1 and 2, license renewal application. The primary goal of the site visit was to review documentation and gather information to ensure that the environmental requirements for license renewal, as codified in Title 10 of the Code of Federal Regulations Part 51 were met, in accordance with the issued audit plan (ML15233A518). The enclosure is a list of representatives from NRC and personnel from Pacific Gas and Electric (PG&E) and its contractors who participated in the site audit.
The audit began on September 21, 2015, with an entrance meeting to introduce participants and discuss logistics of the audit. Following the entrance meeting, the NRC environmental review team and PG&E discussed the following topics relative to the SAMA analysis: (1) Level 1 Probabilistic Risk Assessment (PRA), (2) Level 2 model PRA, (3) external events, (4) Level 3 consequence analysis, (5) SAMA identification and screening, (6) cost-benefit analysis, and (7) consideration of potentially lower cost alternative SAMAs.
During the exit meeting at the conclusion of the site audit, the NRC environmental review team summarized the status of the review with PG&E. Most of the team's questions identified in the audit plan or during the audit were answered through the conduct of the audit.
E. Halpin NRC staff is preparing requests for additional information (RAIs), which will be issued in a subsequent letter. While the NRC review team did not identify any significant environmental issues during its site audit, the environmental review of the DCPP license renewal application is ongoing, and thus, any additional information necessary to support the review would be formally requested via the RAI process.
Sincerely,
/RA/
Michael J. Wentzel, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323
Enclosure:
As stated cc w/encl: Listserv
ML15275A094 *concurrence via email OFFICE LA:DLR* PM:RPB2:DLR BC:RPB2:DLR PM:RPB2:DLR NAME IBetts MWentzel JDanna MWentzel DATE 10/ 5 /15 10/ 6 /15 10/ 7 /15 10/ 7 /15
Letter from M. Wentzel to E. Halpin dated October 7, 2015
SUBJECT:
SUMMARY
OF THE SEVERE ACCIDENTS MITIGATION ALTERNATIVES SITE AUDIT RELATED TO THE ENVIRONMENTAL REVIEW OF THE DIABLO CANYON POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC NOS. MF4019 AND MF4020)
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PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRerb Resource RidsNrrDlrRarb Resource RidsNrrDlrRasb Resource RidsNrrDlrRsrg Resource RidsOgcMailCenter Resource RidsNrrPMDiabloCanyon Resource
MWentzel JDanna RPlasse YDiaz-Sanabria SLingam CKanatas, OGC JLindell, OGC THipschman, SRI JReynoso, RI GMiller, RIV DMcIntyre, OPA LUselding, OPA WMaier, RIV AMoreno, OCA
LIST OF PARTICIPANTS DIABLO CANYON POWER PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION ENVIRONMENTAL REVIEW SEVERE ACCIDENTS MITIGATION ALTERNATIVES SITE AUDIT September 21-23, 2015 PARTICIPANTS ORGANIZATION Jerry Dozier U.S. Nuclear Regulatory Commission (NRC)
Michael Wentzel NRC Bruce Schmitt Pacific Northwest National Laboratory (PNNL)
Bob Schmidt PNNL Nathan Barker Pacific Gas and Electric (PG&E)
Al Bates PG&E Terry Grebel PG&E Tom Jones PG&E Dave Miklash PG&E Michelle Olsofsky PG&E John Pyo PG&E Jearl Strickland PG&E David Bidwell ERIN Engineering and Research, Inc. (ERIN)
Alex Duvall ERIN Donald MacLeod ERIN ENCLOSURE
