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Diablo Canyon Power Plant, Unit 1

Location: Avila Beach, CA (12 miles WSW of San Luis Obispo, CA); Region IV; Type: Westinghouse Four-Loop; Licensed MWt: 3304

Diablo Canyon Power Plant, Unit 2

Location: Avila Beach, CA (12 miles WSW of San Luis Obispo, CA); Region IV; Type: Westinghouse Four-Loop; Licensed MWt: 3468

Diablo Canyon, Units 1 & 2, AND Humboldt Bay Power Plant, Unit 3, Application to Use Weighting Factors for Effective Dose Equivalent.

H Pacific Gas andElectric Company®James R. Becker Diablo Canyon Power PlantSite Vice President and Mail Code 104/5/502Station Director P. 0. Box 56Avila Beach, CA 93424June 9, 2008 805.545.3462Internal: 691.3462Fax: 805.545.4234PG&E Letter DCL-08-050PG&E Letter HBL-08-013U.S. ...

Diablo Canyon - Notification of NRC Design Bases Assurance Inspection (Teams) (05000275/2019010 and 05000323/2019010) and Initial Request for Information.

March 11, 2019 Mr. James M. Welsch Vice President Nuclear Generation 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 - NOTIFICATION OF NRC DE...

Diablo Canyon Power Plant - Notification of Inspection (NRC Inspection Report 05000275/2019002, 05000323/2019002 and Request for Information.

February 20, 2019 Mr. James M. Welsch Vice President Nuclear Generation 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 – NOTIFICATION OF INSPECT...

Forwards "Investigation of Matls Used in Support Sys for Electrical Conduit & Cable Trays at Diablo Canyon." Superstrut spot-welded members meet design requirements & may be installed.

ENCLOSURE 23 GlFlC GA S AND ZLZCTRIC COMPORT77 BEALE STREET> SAN FRANCISCO, CALIFORNIA 94106 TELEPHONE (415) 781-4211P. O. BOX 7442, SAN FRANCISCO, CALIFORNIA 94120 TELECOPIER (415) 543~7813February 25, 1983Mr. R. H. Engelken, Regional AdministratorU.S. Nuclear Regulatory Comm...

Diablo Canyon, Units 1 and 2 - Notification of NRC Initial Operator Licensing Retake Written Examination 05000275/12-301; 05000323/12-301.

November 10, 2011 John T. Conway Senior Vice President-Energy & Supply and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Nuclear Plant 77 Beale Street, Mail Code B32 San Francisco, CA 94105 SUBJECT: DIABLO CANYON, UNITS 1 AND 2 - NOTIF...

Application for stay of ASLB 820831 initial decision re OL issuance.Administrative & judicial review of all issues necessary prior to final OL decision.

. _ . _ . . _ _ - __. - . - .. _. ~. . - . _ - . - . _ _. .|UNITED STATES OF AMERICA,NUCLEAR REGULATORY COMMISSION [bbfBEFORE THE ATOMIC SAFETY & LICENSING APPEAL BOARD ic4 a 26 P4:37 ,i ,-'_ )S'.1. < >In the Matter of)EH ; .:H)PACIFIC GAS AND ELECTRIC COMPANY) Docket Nos. 50-...

"Progress Rept of Independent Design Verification Program, Diablo Canyon Nuclear Power Plant,Phase I," Progress Rept 15 for 820527-0609.

PROGRESS REPORTOFTHE INDEPENDENT DESIGN VERIFICATION PROGRAMDIABLO CANYON NUCLEAR POWER PLANTPHASE IProj ect P 105-4Progress Report No. 15Work Period from 5/27/82 to 6/9/82Report and Work Performed forPacific Gas and Electric Company byRobert L. Cloud Associates, Inc.Robert L....

Diablo Canyon Nuclear Power Plant, Units 1 and 2 - Letter, Notice of Receipt, Public Meeting and Request for Comment on Post-Shutdown Decommissioning Activities Report (EPID L-2019-LRL-0004)

February 13, 2020 Mr. James M. Welsch Senior Vice President, Generation and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Nuclear Power Plant P.O. Box 56, Mail Code 104/6 Avila Beach, CA 93424 SUBJECT: DIABLO CANYON NUCLEAR POWER PLANT, UNITS ...

"Trip Rept: Onsite Analysis of Human Factors of Event at Diablo Canyon 1 on 910517 (Reactor Trip & Safety Injection)."

EGG-HFRU-9476TRIP REPORT:ONSITE ANALYSIS OFTHE HUMAN FACTORS OF AN EVENTAT DIABLO CANYON 1ON HAY 17, 1991(REACTOR TRIP AND SAFETY INJECTION)ORVILLE NEVEROn-Si te Anal ys i s Team:*George Lanik, NRC/AEODEugene Trager, NRC/AEODHarold Blackman, INELWilliam Steinke, INEL*Team Lead...

Diablo Canyon, Units 1 & 2, License Amendment Request 14-05, License Amendment Request for Revision to the Cyber Security Plan Implementation Schedule Completion Date.

ATTACHMENTS 2 AND 3 OF THE ENCLOSURE CONTAINS SECURITY-RELATED Pacific Gas and INFORMATION- WITHHOLD UNDER 10 CFR 2.390 Electric Company® October 17, 2014 Barry S. Allen Site Vice President Diablo Canyon Power Plant Mail Code 104/6 P. 0. Box 56 Avila Beach, CA 93424 805.545.48...

Diablo Canyon, Unit 1 & 2- Safety Evaluation Prepared by NRC Concerning Application for Operating Licenses.

Docket 1@s. 50-GEXlHAY I 51975Distribution:Docket PilDZ 1-3 PQ.NRC PDRax:al PDRDPAZlisonACRS (l0)RCDeYoungC11lesTJEIironsODParrVEMsonPacific Gas ard ElectrllcCaqpanyA%M: lh. John C. NorriseyVice President k Genexe1 Counsel77Scale StreetSan Pmncisco, California 9lll0Gentlemen:....

06/29/2010 Summary of Meeting to Discuss the NRC's Annual Performance Assessment of the Inspection Period Ending December 31, 2009 for Diablo Canyon Power Plant.

UNITED STATESNUCLEAR REGULATORY COMMISSIONREGION IV612 EAST LAMAR BLVD, SUITE 400ARLINGTON, TEXAS 76011-4125July 2, 2010 John T. Conway Senior Vice President – Energy & Supply and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Power Plant 77 Beale Str...

02/04/2004 Notice of Meeting With Diablo Canyon Power Plant Management to Discuss Results of Licensees Special Report Submitted Following 12/22/2003 Earthquake Near San Simeon, California.

January 26, 2004MEETING WITH DIABLO CANYON POWER PLANT MANAGEMENTFACILITY: Diablo Canyon Power PlantDOCKETS: 50-275; 50-323DATE AND TIME: February 4, 20046:30 p.m. (PDT)LOCATION: Embassy Suites Hotel333 Madonna RoadSan Luis Obispo, CA 93405PURPOSE: Two meetings will be held. ...

LTR-16-0333 Edward D. Halpin, Senior Vice President, Generation and Chief Nuclear Officer, Pacific Gas and Electric Company, Letter re: Request to Suspend NRC Review of Diablo Canyon Power Plant License Renewal Application.

Pacific Gas and Electric Company~ June 21, 2016 PG&E Letter DCL-16-066 U.S. Nuclear Regulatory Commission ATIN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Power Plant Units 1 and 2 Edward D. Halpin Se...

04/17/2002 End-of-Cycle Public Meeting Invitation Letter to Local Officials of Diablo Canyon (3rd document issuance of same letter format)

April 1, 2002Rodger Anderson, MayorCity of Morro Bay595 HarborMorro Bay, CA 93442SUBJECT: NOTIFICATION OF UPCOMING MEETINGDear Mayor Anderson:Each year, NRC conducts an integrated assessment of performance, based upon the risksignificance of the inspection findings of the NRC...

Diablo Canyon, Units 1 and 2, Technical Specification (TS), Revising TS 5.6.6 - Reactor Coolant System Pressure Temperature Limits Report (TAC Nos. MB5796 and MB5797).

Definitions1.11.1 Definitions (continued)PRESSURE ANDTEMPERATURE LIMITSREPORT (PTLR)QUADRANT POWER TILTRATIO (QPTR)RATED THERMAL POWER(RTP)REACTOR TRIP SYSTEM(RTS) RESPONSE TIMESHUTDOWN MARGIN (SDM)The PTLR is the unit specific document that provides thereactor vessel pressure...

06/29/2010-Notice of Town Hall Meeting and Open House with Members of the Public to Discuss Issues Related to Diablo Canyon Power Plant.

June 7, 2010 SUBJECT: TOWN HALL MEETING AND OPEN HOUSE WITH MEMBERS OF THE PUBLIC FACILITY: Diablo Canyon Power Plant DOCKETS: 50-275; 50-323 DATE AND TIME: Tuesday, June 29, 2010 Open House: 10:00 a.m. – 1:00 p.m. Town Hall Meeting: 6:00 p.m. – 10:00 p.m. LOCA...

Y020100065/LTR-10-0088 - Letter Urging the NRC to Wait for the Completion of the Seismic Study to Determine Whether to Approve License Renewal for Diablo Canyon.

July 23, 2010 Mr. Ivan Lacore 796A S. Ocean Avenue Cayucos, CA 93430 Dear Mr. Lacore: On behalf of the U.S. Nuclear Regulatory Commission (NRC), I am responding to your letter of February 25, 2010. In your letter, you requested that the NRC wait for the completion of a...

Diablo Canyon Power Plant - NRC Supplemental Inspection Report and Assessment Follow-Up Letter; 05000275/2017008 and 05000323/2017008.

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION IV 1600 E. LAMAR BLVD. ARLINGTON, TX 76011-4511 September 27, 2017 EA-16-168 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 C...

Diablo Canyon, Unit 1, Supplement to Request for Extension of Completion Date for Corrective Actions and Modifications Required by Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents...

Pacific Gas andElectric Company'James R. Becker Diablo Canyon Power PlantVice President P. 0. Box 56Diablo Canyon Operations and Avila Beach, CA 93424Station Director805.545.3462March 27, 2007 Fax: 805.545.4234PG&E Letter DCL-07-037U.S. Nuclear Regulatory CommissionATTN: Docum...

Diablo Canyon, Units 1 & 2, Response to NRC Letter Dated July 15, 2010, Request for Additional Information (Set 10) for License Renewal Application.

Pacific Gas andElectric Company® James R. Becker Diablo Canyon Power PlantSite Vice President Mail Code 104/5/601P. 0. Box 56Avila Beach, CA 93424805.545.3462August 12, 2010 internal: 691.3462Fax: 805.545.6445PG&E Letter DCL-10-098U.S. Nuclear Regulatory CommissionATTN: Docume...

Rev 1 to "Test Rept for EMI Mapping of Cable Spreading Room, Diablo Canyon Station Units 1 & 2."

TEST REPORTFORELECTROMAGNETIC INTERFERENCE (EM/ MAPPING OFCABLE SPREADING ROOM, DIABLO CANYON STATION, UNIT Pl AND 02FOR WESTINGHOUSE ELECTRIC CORPORATIONPROCESS CONTROL DIVISION200 BETA DRIVEPITTSBURGH, PA 15238-2987'9304050269 930331PDR ADOCK 05000275PPDRTest Report 59222,~4...

Diablo Canyon, Units 1 & 2, Pacific Gas and Electric Company's Response to Intervenors Request to Produce Documents Relating to Plant Seismic Design.

UNITED STATES OF AMERNUCLEAR REGULATORY COMMls8IONBEFORE THE ATOMIC SAFETY AND LICENSING BOARD~In the Matter ofPACIFIC GAS AND ELECTRIC COMPANYUnits 1 and 2Diablo Canyon Site50-323-OLPACIFIC GAS AND ELECTRIC COMPANY'S RESPONSETO INTERVENORS'EQUEST TO PRODUCE DOCUMENTSRELATING ...

Diablo Canyon, Units 1 and 2 - Observations of the Gray Whale Migration in the Vicinity of Diablo Canyon: 1985-1986 Migration, Appendix 3, Pod Sizes by Zone by Direction.

APPENDIX 3 Pod Sizes by Zone by Direction BAR CHART NUM FREQ CUM. PERCEN1' cu~. I FREQ PERCENT 1 1···· 2 2 2 . 74 2 . 74 2 , .... 2 4 2.74 5.48 3 , ........ 4 8 5.48 10.9(, 4 •••• 2 10 2 . 74 13 . 70 5 , ........ 4 14 5 . 48 19. 18 6 , .... 2 16 2.74 21. 9:7 1 '····••*•••·····...

July 2012 Seismic Study Update Letter for Diablo Canyon, Units 1 and 2.

July 10, 2012 by Electronic Information Exchange Administrative Judge Alex S. Karlin Administrative Judge Nicholas G. Trikouros Administrative Judge Paul B. Abramson Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Two White Flint North 11545 Rock...