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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any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.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

07/31/1978-08/04/1978 Notice Forthcoming Meeting With Pacific Gas & Electric Company Diablo Canyon Nuclear Power Station, Units 1 and 2 To Discuss Environmental Qualification Of Diablo Canyon Electrical Equipment.

k1EETING NOTICE DISTRIBUTIONLIGHT WATER REACTORS BRANCH NO. 1CDoek5t FileNRC PDRLocal PDRTICNRR ReadingLWR0'1 FileE. G. CaseD. CrutchfieldR. S: BoydR. C. DeYoungD. B. Vassallo. W. P. Gammill'F.J. Wi 1 1 i assJ. F. Stol z'.R. Baer'-:-0., Parr. S. VargaR. ClarkT.'peis.P. Collins...

(Enclosure) Staff Evaluation of "A Preliminary Numerical Study of the Hazard from Local Landslide Tsunami Scenarios at the Diablo Canyon Site in Central California, Summary Report (Draft)"

1Sewell, R. T., A Preliminary Numerical Study of the Hazard from Local LandslideTsunami Scenarios at the Diablo Canyon Site in Central California, Summary Report (Draft), R.T. Sewell Associates, Louisville, November 22, 2003.2The term landslide is used to refer to the submarin...

Diablo Canyon, Units 1 and 2 - Annual Report for 2003 on Discharge Monitoring.

fm Pacific Gas and&'R Electic CompanyJames R. BeckerVice President-Diablo CanyonOperations and Station DirectorDiablo Canyon Power PlantPO. Box 56Avila Beach. CA 93424805.545.3462Fax: 805.545A234Date: IFebruary 28, 2004__1Certified Return/Receipt#7001-0360-0000-2103-5811PG&E L...

NRC Staff Notice of Update of Hearing File for Diablo Canyon Nuclear, Units 1 and 2.

UNITED STATESNUCLEAR REGULATORY COMMISSIONWASHINGTON, DC 20555 - 0001 September 16, 2013 Administrative Judge Alex S. Karlin, Chair Atomic Safety and Licensing Board Panel Mail Stop - T-3 F23 U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Administrative Judge ...

Diablo Canyon, Units 1 & 2, Emergency Plan Implementing Procedure Update.

Pacific Gas andElectric CompanyDiablo Canyon Power PlantPO. Box 56Avila Beach. CA 93424800.545.6000November 10, 2003PG&E Letter DCL-03-145U.S. Nuclear Regulatory CommissionATTN: Document Control DeskWashington, DC 20555-0001Docket No. 50-275, OL-DPR-80Docket No. 50-323, OL-DPR...

Diablo Canyon, Units 1 and 2 - Emergency Response Data System Transition from Existing Modem to Virtual Private Network Technology.

Pacific Gas and Electric Company® January 28, 2011 PG&E Letter DCL-11-009 u.s. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 James R. Becker Site Vice Pr...

Diablo Canyon - Letter to Chairman Concerning the Semismic Design .

NAY 1 S1976Docket Nos. 50-275 O.L.50-323 O.L.Mr. James A. Mack7359 Breen StreetNilcs, IllinoisDear Mr. Mack:Your letter to Chairman Anders dated March 30, l976 concerning the seismicdesign of the Diablo Canyon Nuclear Plant has been referred to mc forresponse. As you know, the...

Diablo Canyon, Unit 1 - Inservice Inspection Report for Tenth Refueling Outage

Pacific Gas and Electric Company,.Lawrence F. Womack Vice President Power Generation and Nuclear ServicesFebruary 5, 2001Diablo Canyon Power Plant PO. Box 56 Avila Beach, CA 93424 805.545,4600 Fax: 805.545.4234PG&E Letter DCL-01-009 U.S. Nuclear Regulatory Commission ATTN: Doc...

Forwards "Util Advisor Evaluation Team Rept on Diablo Canyon Shift Advisor Program," transmitted by Duke Power Co 840411 ltr.

REGULATO INFORMATION DISTRIBUTION STEM (RIDS)ACCESSION NBR:8405010384 DOCiDATE: 89/04/26 NOTARIZED; NO DOCKETFACIL:50 275 Diablo Canyon Nuclear Power Planti Unit ii Pacific Ga 0500027550",.323 Diablo Canyon Nuclear Power Planti Unit 2i Pacific Ga 05000323AUTH, NAME- AUTHOR AFF...

2015/07/02 Diablo Canyon LR - RE: Federal Register Notice Announcing Scoping

1DiabloCanyonNPEm ResourceFrom: Wentzel, MichaelSent: Thursday, July 02, 2015 6:07 AMTo: Terrence Grebel (TLG1@pge.com)Subject: RE: Federal Register Notice Announcing ScopingAttachments: ML15140A564.pdfHere is a copy of the letter. From: Wentzel, Michael Sent: Wednesday, Jul...

WCAP-17462-NP, Revision 1, Program Plan for Aging Management of Reactor Vessel at Diablo Canyon, Unit 1, and WCAP-17463-NP, Revision 1, Program Plan for Aging Management of Reactor Vessel Internals at Diablo Canyon, Unit 2.

Westinghouse Non-Proprietary Class 3WCAP- 17462-N PRevision 1December 2015Program Plan for AgingManagement of Reactor VesselInternals at Diablo Canyon PowerPlant Unit 1~JWestinghouseWESTINGHOUSE NON-PROPRIETARY CLASS 3WCAP-17462-NPRevision 1Program Plan for Aging Management of...

Forwards COLR for Unit 1 Cycle 9,IAW paragraph 6.9.1.8.d of Diablo Canyon Power Plan TS.

CATEGORY 1REGULATC INFORMATION DISTRIBUTION TEM (RIDS)A~CCESSION »QBR:9705160007 DOC.DATE: 97/05/09 NOTARIZED: NOFOCI'b:-50-27.5 Diablo Canyon Nuclear Power Plant, Unit l, Pacific GaAUTH. NAME AUTHOR AFFILIATIONRUEGER,G.M. Pacific Gas & Electric Co.RECIP.NAME RECIPIENT AFFILIA...

Diablo Canyon Units 1 and 2 Submittal of Decommissioning Funding Report.

Enclosure 5 to this letter contains Confidential Information - Withhold Under 10 CFR 2.390 Pacific Gas and Electric Company"' March 26, 2019 \ PG&E Letter DCL-19-020 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-...

"Diablo Canyon Power Plant Semiannual Radioactive Effluent Release Rept for Jan-June 1992." W/920826 ltr & one oversize drawing.

-(;GELERAYj::0 J~sz'RJBU7IONBEMGMRTRATIQNsYsTEMREGULA',lNAY INFORMATION DISTR IBUTI~SYSTEM (RIDS)ACCESSION NBR: 9208310210 DOC. DATE'2/Ob/30 NOTARIZED: NO DOCKET 0FACIL: 50-275 Diablo Canyon Nuclear Pacer Pianth Unit lh Pac ific Ga 0500027550-323 Diablo Canyon Nuclear Poeer Pl...

Diablo Canyon Power Plant - Notification of NRC Initial Operator Licensing Examination

December 19, 2006John S. KeenanSenior Vice President - Generation and Chief Nuclear OfficerPacific Gas and Electric CompanyP.O. Box 770000Mail Code B32San Francisco, CA 94177-0001SUBJECT: DIABLO CANYON POWER PLANT - NRC INITIAL OPERATOR LICENSINGEXAMINATION REPORT 05000275/2...

Diablo Canyon, Units 1 and 2 - Once Through Cooling.

Co0(31Diablo CanyonOnce Through Cooling~ EIectric Company,;! n | m , H ... . I1] [ I IFacilities Using OTC* 539 Power Plants Nationwide and 19 Plants in California* California Facilities-- 40%/ of generating capacity- 2200of generation- Baseload, Intermediate, and Peaking Re...

Diablo Canyon, Units 1 and 2, 2013 Annual Report on Discharge Monitoring.

Pacific Gas and1a Electric CompanyPG&E Letter DCL-2014-509February 28, 2014Pacific Gas and Electric CompanyDiablo Canyon Power PlantP.O. Box 56 !Avila Beach, CA 93424Electronic SubmissionCIWQS Web ApplicationCalifornia Regional Water Quality Control BoardCentral Coast RegionAt...

Diablo Canyon Power Plant, Unit Nos. 1 and 2 - Withdrawal of an Amendment Request (CAC Nos. MF7731 and MF7732).

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 April 24, 2017...

Diablo Canyon, Units 1 and 2 - Nuclear Material Transaction Report for New Fuel

Pacific Gas and - Electric Company ¢, June 27, 2019 PG&E Letter DCL-19-057 Ms. Mary McConnell, NMMSS Program, NA-532, Germantown Building U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585-1290 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 ...

Summary of Public Scoping Meetings Related to the Review of The Diablo Canyon Nuclear Power Plant, Units 1 and 2 License Renewal Application.

p.R REGv'-~ U(~ UNITED STATES -0 :J~. ~.L NUCLEAR REGULATORY COMMISSION ~ g WASHINGTON, D.C. 20555-0001 ... 3: ~ ,II. ss \ (; iJ ~ 'J > or ~~_ - 3­c.",t-... fltfal~#,: ~,,~(H~,",l'1U.S. Nuclear Regulatory Commission ~ ..." ~~),;Jl!,.... _<' (1~ , C> l)"J\ ~ , '" :: ,r; ~ " ...

"Reload Safety Evaluation,Diablo Canyon Power Plant Unit 2 Cycle 2."

llPRidE Letter No.: DCL-87-119ENCLOSURE 1RELOAD SAFETY EVALUATIONDIABI.O CANYON POWER PLANTUNIT 2 CYCLE 2February 1987Edited byS. L DavidsonContributors:M. W. FecteauR. E. RadcliffeI. K. PaikL. A. WootenP. J. LarouereG. W. StovarJ. J. AkersR. HowardJ. AndrachekC. Thompson87060...

LER 14-001-01 for Diablo Canyon, Unit 2, Regarding Lightning Arrester Failure Resulting in Reactor Trip.

Pacific Gas and Electric Company® July 2, 2014 PG&E Letter DCL-14-059 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-323, OL-DPR-82 Diablo Canyon Unit 2 Barry S. Allen Site Vice President 10 CFR 50.73 Diablo Canyon Power ...

LER 12-007-00 for Diablo Canyon, Unit 1 Regarding Inadequately Compensated Non-Conformances in the Fire Protection Program.

Pacific Gas and Electric Company® December 7,2012 PG&E Letter DCL-12-125 Barry S. Allen Site Vice President Diablo Canyon Power Plant Mail Code 104/6 P. O . Box 56 Avila Beach, CA 93424 805.545.4888 Internal: 691 .4888 Fax: 805.545.6445 U.S. Nuclear Regulatory Commission ATTN:...

Monthly operating repts for Jan 1992 for Diablo Canyon Units 1 & 2.W/920214 ltr.

ACCELERATED DI RIBUTION DEMONST TION SYSTEMq ~REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR:9202190205 DOC.DATE: 92/01/31 NOTARIZED: NO DOCKETFACIL:50-275 Diablo Canyon Nuclear Power Plant,, Unit 1,Pacific Ga 0500027550-323 Diablo Canyon Nuclear Power Plant, U...

Diablo Canyon Power Plant, Units 1 and 2 - NRC Security Baseline Inspection Report 05000275/2018403 and 05000323/2018403.

November 26, 2018 Mr. James M. Welsch Vice President, Nuclear Generation and Chief Nuclear Officer Pacific Gas and Electric Company P.O. Box 56 Mail Code 104/6 Avila Beach, CA 93424 SUBJECT: DIABLO CANYON POWER PLANT, UNITS 1 AND 2 - NRC SECURITY BASELINE INSPEC...