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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 and 2, Temporary Exemption Request from 10 CFR 50 Appendix E Biennial Emergency Preparedness Exercise Requirements due to COVID-19 Pandemic.

Paula Gerfen Site Vice President Diablo Canyon Power Plant Mail code 104/6/605 P.O. Box 56 Avila Beach, CA 93424 805.545.4596 I nternal: 691.4596 Fax: 805.545.4234 A member of the STARS Alliance Callaway • Diablo Canyon • Palo Verde • Wolf Creek July 9, 2020...

Diablo Canyon, Units 1 and 2 - Letter Forwarding Letter dated Nov. 9, 1971 with Supplement to Environmental Report for Diablo Canyon, Units 1 and 2.

IDENTICAL LETTER SENTPERSONS ON ATTACHEDMAILINGLIST.5IIW~Ii-FIICK.giPII)November 13, 1971Docket No.50-2 5/323,50-298,50-255, 50-315/316Distriboti on:Docket FileAEC PDRLocal PDRG. Blanc, REPL. Rogers, REP.H. Thornburg, REPI am for()arding under separate cover copies of the docu...

Diablo Canyon Units 1 and 2, License Amendment 47 and 46, Changing TS 6.0 "Administrative Controls", to Change Reporting Relationship of Onsite Safety Review Group" and the Membership of CONPRAC.

December 4, 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 94106 Dear Mr. Shiffer:DISTRIBUTION: RegionV (...

Diablo Canyon, Units 1 and 2 - Response to Request for Additional Information Regarding the Consequences of a Postulated Main Steam Line Break Accident Inside Containment.

N{2 78)'eU.S. NUCLEAR REGULA COMMISSIONNRC DISTRIBUTlON FDR PART 50 DOCKET MATERIALOo5I E NUMBER--LETTERC}ORIGINAL~COPYC}NOTORIZEDQIChfc LASS IFI EDTO:Mr. J. F. Stol zPROP INPUT FORMFROM:ggggg PGSan, Francisco, Calif. 94106P. A. Crane, Jr.DATE OF DOCUMENT9-15-77DATE RECEIVED12...

Diablo Canyon Units 1 & 2, License Amendments 10 & 8, Revises TS to Redefine Moderator Temperature Coefficient Limits, Revises F-delta-H Power Multiplier & Deletes Design Feature Description of Total Weight of Uranium in a Fuel Rod.

Docket 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 94106October 21, 19b& DISTRIBUTION Docket File NRC PDR Local P...

Response opposing util & NRC responses to intervenor motions to reopen issue on const QA.NRC ignored util improper & rampant disregard of QA requirement & obsession w/hearing speed & scheduling.Certificate of Svc encl.

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Advises that Joint Intervenors comments,due 830823,will be submitted 830901 re rev in schedule for Commission consideration of NRC recommendation that suspended low power OL be reinstated.Delay due to unprecedented activity.

,Jwp9' ;%LCENTER FOR LAWIN THE PUBLIC INTEREST303E ^ ^10951 wtST PICO ROULEVARD SN ON, D.C. OFFICE,LUC AS GlJf f ENTAGTHIRD FLOORgaAvg "^" da- 1575 CV E $,TRE Q hW.LOs ANGELES, CAuFORNIA 90064-2166"'*r S Y<%d"," ",lE .",:'A..u.@ ~ = W b N ''-o'**'"''" "' ' ' ' ' ' ' ' ' ' "JOE...

Forwards "Diablo Canyon Unit 1 Independent Design Verification Program Small Bore Piping Rept," Interim Technical Rept 30,Rev 0.

FREGULATOR NFORMATION DISTRIBUTION S EM (BIDS)ACCESSION NBR;8301 f80262. „DOG~DATE: 83/01/12NOTARI'ZED; NO DOCKET ¹-l.AGIL";.,50 '275Diablo 'Ganyon Nuclear Power Pl anti Unit 1 i Pacific Ga 05000275'AUTH~NAME AUTHOR AFFILIATIONDENISONi E ~lRaber.tLElCloud Associatesi.Inc.RECI'...

Diablo Canyon, Units 1 & 2, Final Safety Analysis Report Update, 2.5 Geology And Seismology Through Figure 2.5-32 Free Field Spectra Vertical HOSGRI 7.5M/NEWMARK Rev. 11.

DCPP UNITS 1 & 2 FSAR UPDATE2.5 GEOLOGY AND SEISMOLOGYThis section presents the findings of the regional and site-specific geologic andseismologic investigations of the Diablo Canyon Power Plant (DCPP) site. Informationpresented is in compliance with the criteria in Appendix A...

Requests attention to possibility that util failed to disclose existence of Hosgri Fault near Diablo Canyon in San Luis Obispo,CA to NRC for 2 yrs.Investigation similar to that being conducted re North Anna suggested.

.< tw ',.-oCEN TER Fof: Lrncan o' '6 f tt > |N THE PJBLIC If1TEREE fLt a. s u-'~.e,o s t a u. -o .c a sov.t v m aL,. . , , ,1}q::.=:.~;, ,c. .v,, , , .,, ,.r 6 -. .:t.1r i e ,- n e,caen. s . r .a,.. ,. .:... ; . ,~ .';;:::.- eo. ~.u w a . ~..~. e -, .n c~c~s ~ we u*c- ~ 1~~-cy...

Diablo Canyon, Units 1 and 2 - Issuance of Amendment Nos. 228 and 230, Revise Technical Specifications to Adopt TSTF-523, "Generic Letter 2008-01, Managing Gas Accumulation" (CAC MF7275 and MF7276).

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Edward D. Halpin Senior Vice President, 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 January 5, 201...

HI-2125191, "Three-Dimensional Thermal-Hydraulic Analyses for Diablo Canyon Site-Specific Hi-Storm System with Upto 28.74 KW Decay Heat."

IU....HOLTECINTERNATIONALHoltec Center. 555 Lincoln Drive West, Marlton. NJ 08053Telephone (856) 797- 0900Fax (856) 797 - 0909THREE-DIMENSIONALTHERMAL-HYDRAULIC ANALYSES FORDIABLO CANYON SITE-SPECIFIC HI-STORMSYSTEM WITH UPTO 28.74 KW DECAY HEATFORPG&EHoltec Report No: HI-2125...

Forwards "Diablo Canyon Nuclear Power Plant Unit 1 Independent Design Verification Program," second Friday semimonthly rept for Jul 1983.

ACCESSION8A:FACIL-'5K 275AUTH.NAtdECOOPERpl4.E.REC IP. NAMEDENTONiH R.MARTINiJ.B,MANEATI 8 i G. A.REGULATOR) '4FORMAT ION DISTRIBUTION S EM (RIDS)8307130207 DO(:.DATE:, 83/07/08 NOT'ARIZED:NO„.Diablo Canvon Nuclear Power Planti Unit ii Pacific GaAUTHOR AFFILIATIONTeledvne EnaI...

Diablo Canyon Three Areas Have Been identified Where the Protection Against Tornado Missiles Will Require further Review.

Q,Docket Nos. 50-275and 50-323JUL. t 1 1975Distribution'ocketFilLl(R 1-3 FileNRC PDRLocal PDRRCDeYoungFSchroederVH10ilsonJPanzarellaACRS (14)TBAbernathy, DTIERNKleckerM1(il1 iamsELDIE(3)DPAl1isonTJHironsTR Branch ChiefsL1% 1 Branch ChiefsJRBuchanan, ORNLJ1%tetmorePacific Gas a...

LER 11-007-00, for Diablo Canyon, Unit 1, re: Inadequate Control Room Envelope Testing Due to Inadequately-Documented In-Leakage Test Data.

Pacific Gas andElectric Company®November 14, 2011PG&E Letter DCL-11-120U.S. Nuclear Regulatory CommissionATTN: Document Control DeskWashington, DC 20555-0001James R. BeckerSite Vice PresidentDiablo Canyon Power PlantMail Code 104/5/601P. O. Box 56Avila Beach, CA 93424805.545.3...

Diablo Canyon Unit 2- Copies of Oral Testimony Proposed to be Offered by PG&E at Environmental Hearing.

UNXTED STATES OF AMERICAATOMIC ENERGY COMMISSXONXn the Matter ofPACIFXC GAS AND ELECTRIC COMPANYDiablo Canyon Site-Unit 2)))Docket No. 50-323-NEPA)))CERTIFICATE OF SERVICECopies of the oral testimony proposed to be offeredbyPacific Gas and Electric Company at the environmental...

Diablo Canyon Nuclear Power Plant, Units 1 and 2 - REDACTED -Issuance of Amendment Nos. 234 and 236 To Revise TS 5.6.5b, "Core Operating Limits Report (COLR)," for Full Spectrum Loss of Coolant Accident Methodology (EPID L-2018-LLA-0730)

OFFICIAL USE ONLY PROPRIETARY INFORMATION UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 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, Mai...

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 (TAC Nos. ME7522 and ME7523).

LICENSEE: Pacific Gas and Electric Company FACILITY: Diablo Canyon Power Plant, Unit Nos. 1 and 2 SUBJECT: SUMMARY OF MAY 7, 2015, TELECONFERENCE MEETING WITH PACIFIC GAS AND ELECTRIC COMPANY ON DIGITAL REPLACEMENT OF THE PROCESS PROTECTION SYSTEM PORTION OF THE REACTOR TRIP S...

Docket No.50-275, OL-DPR-80 Docket No.50-323, OL-DPR-82 Diablo Canyon Units I and 2 Commitment Change Summary Report

"W Pacific Gas and Electric Company Gregory M. Rueger 77 Beale Street, 32nd Floor Senior Vice President and San Francisco, CA 94105 General Manager Mailin Address Nuclear Power Generation Mailing Aode s Mail Code B32 P.O. Box 770000 May 31, 2000 San Francisco, CA 94177 415.973...

Diablo Canyon, Units 1 and 2, Request for Additional Information, License Amendment Request to Replace Digital Process Protection System for Reactor Protection System and Engineered Safety Features Actuation System Functions (TAC Nos. ME7522 and ME7523).

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 August 7, 2012. 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:...

Diablo Canyon, Units 1 and 2 - CA Public Utilities Commission Letter Pursuant to Paragraph E.3 of 10 CFR 50, Appendix D Furnishing Information to Show Cause as to Why PG&E's Construction Permit and License Should Not be Suspended.

F ROARublic=Utilit'ies Coinmissionan Francisco,„.,Calif .. 94102'illiamQ,. DunlopTO.OATKOFDOCUMENT'ov.10, 1971ORIGDATE RKCYKD NO~N 12, 19714/PSREPORT:ACTION NECESSARYQNOACTIONNECESSARYQC CURRENCECOM TQDATE ANSWERED:QBV:CLASSIFIPOST OFFICEREG. NO:FILE COD@50-275 50-323 (ENVIRO ...

Diablo Canyon, Units 1 and 2 - Letter to Environmental & Energy Systems, Inc. Regarding Consideration of Geothermal Energy as an Alternative Source of Power.

EN@SONDocket Hos. 50-275and$0-32fDISTRIBUTION:mC PDR Chai~ Ray D D.---"------.eve ~ - ~ - ~ - ~-»— ——'L"DDRP-----SURNAME >DATE >Form hEC-318 (Rcv". 9-53) AECM 0240BWerner~eb-.;" JSi1VeT---=AQMmbus'soIFIIE'N~- ~ 'I 'f,IF'1IhNF FEFFIHh1EFlfk~ RhE I'IkfIIlh . I'I I" II'F ~FfIl I...

Forthcoming Advisory Committee On Reactor Safeguards (ACRS) Subcommittee 10/11/1976 Meeting With Pacific Gas And Electric Company (PG&E) re Diablo Canyon Nuclear Power Station, Units 1 & 2.

MEETING NOTICEDISTRIBUTIONDockec FillNRC/PDRL/PDRACRS (16)TICOELDIEOPASD(7)LWR-1 FildNRR ReadingR. BallardV. BenaroyaH. BerkowR. BoydD. BunchW. ButlerE. CaseP. Check~R. ClarkJ. CollinsP. CollinsR. DeniseH. DentonR. DeYoungM. ErnstB. Faulkenberry, IEW. GammillR. HeinemanC. Helt...

"Diablo Canyon I Special Low Power Tests Final Safety Evaluation Rept."

~~DIABLO CANYON ISPECIAL LOW-POWER TESTSFINAL SAFETY EVALUATION REPORTOCTOBER 1980/E1.0 INTRODUCTION AND SUMMARY~In an attempt to move the licensing process for Diablo Canyon, PG&Eproposed to the NRC some of the special tests to be performed at reactorpower levels at or below ...

Comment (8) of Mark Phillips on NRC Staff's Supplement to the Environmental Assessment and Draft Finding of No Significant Impact Related to the Construction and Operation of the Diablo Canyon Independent Spent Fuel Storage Installation.

Page 1 01 2,NRCREP - docket no. 72-26 No significant impact regarding spent fuel storageFrom: mark phillips e, )ýTo: Date: 06/20/2007 9:44 PMSubject: docket no. 72-26 No significant impact regarding spent fuel storageTo James R. Hall,I am writing in regards to Docket No. 72-2...