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The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

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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, Unit 1 & 2 - Filed Request To Intervene In The Public In Hearing In Connection With The application Of PG&E.

Docket Nos. 50-275+and 50-323DEC 12 $73Nr. John J. Forster503 HigchellStx'eet.San Luis Obispo, California 93401Dear12'e. Forster:for am$date foIreting, and I understand that. December 18, 1973, is a convenientyou. Accordingly, this is to confirm that 8r. Hixons andhers of the ...

Diablo Canyon, Unit 2, Relief, Relief Request for Second Inservice Inspection Interval for Steam Generator Welds, MC9473

April 04, 2006Mr. John S. KeenanSenior Vice President and Chief Nuclear OfficerPacific Gas and Electric CompanyDiablo Canyon Power PlantP.O. Box 770000San Francisco, CA 94177-0001SUBJECT: DIABLO CANYON POWER PLANT, UNIT 2 - RELIEF REQUEST FORSECOND INSERVICE INSPECTION (ISI) ...

Response Letter Regarding the Diablo Canyon Nuclear Power Plant near San Luis Obispo.

I'.~o"ISACRAMENTO OFFICESTATC CAPITOLSACRAMENTO. CALIFORNIA95814(916) 445.6747DltiTRICTOl'PICKS2(I WALLSTREETCHICO. CALIFORINA95925(916) 345 6101319 - 6TH STREETMARYSVILLE,CAI IFORNIA 95901(915) 743 18282400 WASHINOTON PMKASUITE 101RCDDINOe CALIFORNI*96001(915) 244 6006I Augus...

Diablo Canyon, Units 1 & 2, Environmental Assessment & Finding of No Significant Impact, Amendments Would Revise Combined TS to Permit Use of Vantage 5 Fuel in the Facility.

April 25, 1989Docket Nos. 50-275 and 50-323 Mr. J. D. Shiffer, Vice President Nuclear Power Generation c/o Nuclear Power Generation, Licensing Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106DISTRIBUTION: Docket File NRC & LPDRs PDV P...

Diablo Canyon, Units 1 and 2 - July 25, 1978 Letter re request for additional information on main stream line break(MSLB) analysis.

q(~(7eREGULATORY INFQRMATION DISTRIBUTION SYSTEM (BIDSDISTRIBUTION FOR INCOMINGMATEI"IAL50- /323REC: STOI Z JI.NRCORG: CRANE P APACIFIC GAS 8. ELECDOCDATE: 08/31/78DATE RCVD: 09/06/78NOTARIZED: NODOCTYPE: LETTERSUBJECT:FURNISllING RESPONSE TQ NRC LTR DTD 07/25/78... ADVISINGRE...

Diablo Canyon Unit 2 - Signed Original Federal Register Notice.

,l ],~hhh HSe(P0Jy1COIheal0h +o~Ok +»*««'SIN'RlSUTIoihhhNFT%5 ITATKS,Xih'i<

Part 7 of 8, Diablo Canyon Independent Spent Storage - Submittal of Geoscience Calculation Packages, Revision 1 to Calculation GEO.DCPP.01.20.

IPACIFIC GAS AND ELECTRIC COMPANYDIABLO CANYONCALCULATIONSPG&E Geosciences Department Departmental Calculation Procedure Title: Calculation Cover SheetPage: 1 of 1PACIFIC GAS AND ELECTRIC COMPANY GEOSCIENCES DEPARTMENT CALCULATION DOCUMENTCalc Number:Revision:Date:GEO.DCPP.01....

Pacific Gas and Electric Company Motion for Extension of Time in the Matter of Diablo Canyon Units 1 and 2.

~ ~~i@0UNITED STATE 0 AMERICANUCLEAR REGULATORv COMMISSIONBEFORE THE ATOMIC SAFETY AND LICENSING BOARDIn the Matter of )PACIFIC GAS AND ELECTRIC COMPANY)Units 1 and 2 )Diablo Canyon Site ))Dockets50-275-OL-323-OLPACIFIC GAS AND ELECTRIC COMPANYMOTION FOR EXTENSION OF TIMEPGand...

Diablo Canyon Units 1 and 2, License Amendment 117 and 115, Revise TS to Relocate 6.5 "Review and Audit" and 6.8 "Procedures and Programs".

9-7/3 23UNITED STATES 0 NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20855-0001 = o" October 25, 1996 Mr. Gregory M. Rueger Pacific Gas and Electric Company NPG - Mail Code AIOD P. 0. Box 770000 San Francisco, California 94177 SUBJECT: ISSUANCE OF AMENDMENTS FOR DIABLO CANYO...

Diablo Canyon, Units 1 and 2 - Letter Transmitting Conformed Copies of Amendment No. 49 to the Operating License Application for Diablo Site.

~ ' ~ ~~ ~~ ~'~~~~ ~ ~ ~ ~~ ~~0PACIFIC GAS AND ELECTRiC COMPANYCOPYMay 27, 1977ARg ~g, AI>o~~>pc+DirectorDivision of Reactor Licensing.U. S. Nuclear Regulatory CommissionWashington, D. C. 20555Re xDoc'ketNo. 50-275-OLDocket No. 50-323-OLDiablo Canyon SiteUnits 1 an...

Diablo Canyon, Units 1 & 2, License Amendments 81 and 80, Revise TSs 3/4.4.4 & 3/4.4.9.3, to Implement the Recommendations of Generic Letter 90-06.

July 23, 1993Docket Nos. 50-275 and 50-323 Mr. Gregory M. Rueger Nuclear Power Generation, B14A Pacific Gas and Electric Company 77 Beale Street, Room 1451 P.O. Box 770000 San Francisco, California 94177 Dear Mr. Rueger: SUBJECT: ISSUANCE OF AMENDMENTS FOR DIABLO CANYON NUCLEA...

Submits Self-Explanatory Memorandum on Behalf of Gary Burns Requesting Information on Inspection of the Structural Steel at the Diablo Canyon Nuclear Project.

~~ROBERT J. LAGOMARSINO'I9TH DISTRICT, CALIFORNIA1117 LONGWORTH BVII.OINOWASNINOTON. D.C. 20515202-225-3601ASSISTANT REGIONAI WHIPPL')):oIIgeeds'ftfje Snitch StatesQou5e of Esyt;elenfatibe5Kasfjfntttotf, 39.(G. 20515Novembe 22, 978))gCOMMITTEE ONINTERNATIONAL RELATIONSSUSCOMMI...

LER 01-004-00 for Diablo Canyon, Unit 2 re Technical Specification 3.4.10 Not Met During Pressurizer Safety Valve Surveillance Testing Due to Random Lift Setting Spread.

A| Pacific Gas andElectric CompanyDavid H. Oatley Diablo Canyon Power PlantVice President PO. Box 56Diablo Canyon Operations Avila Beach, CA 93424August 27, 2001 805.545.4350Fax: 805.545.4234PG&E Letter DCL-01 -090U.S. Nuclear Regulatory CommissionATTN: Document Control DeskWa...

Requests NRC brief Subcommittee on Energy & Environ on 840614 re workings of regulatory process of Diablo Canyon, particularly Nuclear Svcs Corp audit.

-_ _.===t've Co.s.tss ST,A f*$0cvt ISTA88 D*E TDsms:e e.S a. WA AILO., CMA$tAAh aND CQUk$1.. - m.,_,m --,mne, m3E ";; Y - Ba E .;b ~~COMMITTEE ON INTERIOR^ * * ' ' ' ' ' " * 'Ot%& MMb. AND INSULAR AFFAIRSY#=~e-E d c Non E N . Y4caYO ^TmacTw w. suoco.asrrsa no wv.s ma-a m cou:....

2010/10/15 Diablo Canyon LR - FW: Responses to your inquiries

1DiabloCanyonNPEm ResourceFrom: Stuyvenberg, AndrewSent: Friday, October 15, 2010 6:42 AMTo: 'David Weisman'Cc: DiabloCanyonNPEm ResourceSubject: FW: Responses to your inquiriesAttachments: ri200302.pdf; ML0526304071.pdfMr. Weisman – I am forwarding a copy of my response to Ms...

Diablo Canyon Units 1 and 2, License Amendment 123 and 121, Revise TS to Change Surveillance Frequencies from 18 Months to Once Per Refueling Interval.

February 27, 195,ýMr. Gregqry M. Rueger, Senior Vice President and General Manager Pacific Gas and Electric Company Nuclear Power Generation N9B P. 0. Box 770000 San Francisco, California 94177 SUBJECT: ISSUANCE OF AMENDMENTS FOR DIABLO CANYON NUCLEAR POWER PLANT, UNIT NO. 1 (...

Letter to Julian, SECY re: Petition to Suspend Diablo Canyon ISFSI Proceeding.

RAS 4863 DOCKETED 09/23/02September 19, 2002Emile L. Julian, Esq.Rulemaking and Adjudications StaffU.S. Nuclear Regulatory CommissionWashington, DC 20555In the Matter ofPacific Gas and Electric Company(Diablo Canyon Nuclear Power Plant Independent Spent Fuel Storage Installati...

Comment (13) of Judy B. Evered on EIR for Waste Storage at Diablo Canyon.

[NRCPREP - 1EIR for waste sto 1r..ea Ige. P TFrom: Judy Evered To: Date: Mon, Jun 25, 2007 1:35 PMSubject: EIR for waste storeage.Dear NRC Commissioners,Increasing nuclear waste atthe Diablo Canyon Power Plant is a mounting problem.This becomes ground zeroNumber 1. In 1957 at ...

Forwards Joint Intervenors to Diablo Canyon comments re proposed rule 10CFR9 amending Sunshine Act regulations.

P~~ |m mPR. 4, 1---CENTER FOR LAW @ Eg, M ff,IN THE Pusuc INTERESTLEoAL STAFF 40ese WEST PICO e O u k Eva m pC'" ' * "*'''J"Q%%[T([TwenO FLOONLos *No:Les CauroaNia soo...ai . UshRCjo-N; |pg';p5, ,M ARILY N O.TESauROT ELE PMON E: 12 3) 470-3000P RE Dmic O. WOOCHE R'85 JUL -1 P3...

10/25/1973 Notice of Forthcoming Meeting on Diablo Canyon, Unit 1 & 2 and Site Visit.

0Docket Nos. 50-275and 50-323OCT~ 6.1973DISTRIBUTION:Docket(2)RP ReadingL ReadingKarl R. Goller, Chief, HGt Branch No. 3,'LZORTHOEKNG DIABLO CAHYON SITE VISIT AND HEETING WITH PACIPXCGAS AND EIZCTRIC CO'i1PAHYTime and Date: 10:00 A. N.-October 25, 1973Location:Purpose:Particip...

Diablo Canyon, Units 1 & 2, Forwards letter from Howard Osborne opposing operation of plant.

4 S4uu ~444 4 4FBOM:Pen. S. I. HayakawaTO:Carlton Kammerer'CTIONCONTROLCOMPL'EADLINEACKNOWLEDGMENTINTERIM REPLYFINALREPLYFILE LOCATION„DATES3 11 772 2401558DATE OF DOCUMENT2/15/77PREPARE FOR SIGNATUREOF:0CHAIRMANQ„EXECUTIVEDIRECTORoTHEROmittedDOCUMENT/COPY NO.NUMBER OF PAGESPO...

Petition of Lorraine Kitman to intervene in a Proceeding on an application for an Independent Spent Fuel Storage Facility to be located on the Diablo Canyon Plant Site

Lorraine Kitman To: 05/08/02 04:45 PM cc: DOCKETED Subject: Petition for leave to intervene and request for hearing May 10, 2002 (4:33PM) Nuclear Regulatory Commission OFFICE OF SECRETARY Public Document Room RULEMAKINGS AND 11555 Rockville Pike ADJUDICATIONS STAFF Rockville, ...

[External Sender] E-Mail Comment by D. Lochbaum Regarding Diablo Canyon Unit 1 AFW System Piping

From: David LochbaumTo: Lee, SamsonCc: Doane, Margaret; Morris, Scott; Linda Seeley; Lucy J Swanson; dcurran@harmoncurran.com; Nieh, HoSubject: [External_Sender] Diablo Canyon Unit 1 AFW system pipingDate: Wednesday, August 26, 2020 12:18:30 PMAttachments: 20200826-dc-lochbaum...

Diablo Canyon Power Plant, Unit 1 - Notification of Inspection and Request for Information.

January 5, 2009 John T. Conway Senior Vice President & Chief Nuclear Officer Pacific Gas and Electric Company P.O. Box 3 Mail Code 104/6/601 Avila Beach, CA 93424 SUBJECT: DIABLO CANYON POWER PLANT, UNIT 1 – NOTIFICATION OF INSPECTION AND REQUEST FOR INFORMATION Dear M...

Diablo Canyon, Units 1 & 2, License Amendment 99 & 98, Amendments Will Permit You More Flexibility in Type A Test (Integrated Leak Rate Test) Scheduling.

N6k REG& UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 11, 1995 Mr. Gregory M. Rueger Nuclear Power Generation, B14A Pacific Gas and Electric Company 77 Beale Street, Room 1451 P. 0. Box 770000 San Francisco, California 94106 SUBJECT: ISSUANCE O...