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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 - Supplement to Reactor Vessel Internals Aging Management Program, Unit 1, Pressurizer Spray Line Pipe Weld Flaw Growth Analysis. and Neutron Embrittlement for the Review of Units 1 and 2, License Renewal Application.

April 15, 2016 PG&E Letter DCL-16-043 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 L. Jearl Strickland, P.E. Leader Generation Technical Services D...

Diablo Canyon Unit Nos. 1 & 2 - Issuance of Amendments 180/182 Re: Elimination of Requirements to Provide Monthly Operating Reports and Annual Occupational Radiation Exposure Reports (Tac. Nos. MC5145/MC5146).

March 22, 2005Mr. Gregory M. Rueger Senior Vice President, Generation and Chief Nuclear OfficerPacific Gas and Electric CompanyDiablo Canyon Power PlantP. O. Box 3Avila Beach, CA 93424SUBJECT: DIABLO CANYON POWER PLANT, UNIT NOS. 1 AND 2 - ISSUANCE OFAMENDMENTS RE: ELIMIN...

Diablo Canyon Units 1 & 2, License Amendments 22 & 21, Authorize PG&E to Rerack Spent Fuel Pools & Reinstate Effectiveness. Amendment Allows Expansion of Spent Fuel Storage Capacity for each Spent Fuel Pool from 270 Spaces.

October 20, 1987Docket Nos.: 50-275 DISTRIBUTION PDV Plant Files and 50-323 Docket File JPartlow NRC & LPDRs TBarnhart-8 CTrammell Wdones Mr. J. D. Shiffer, Vice President GHolahan LFMB/ARM Nuclear Power Generation JLee ACRS-10 c/o Nuclear Power Generation, Licensing DHagan OG...

Diablo Canyon, Units 1 & 2, License Amendments 89 & 88, Revise TS 3/4.3.2, Table 3.3-3, Engineered Safety Features Actuation System Instrumentation, & Table 4.3-2, Engineered Safety Features Actuation System Instrumentation Surveillance Requirements.

March 2, 1994Docket 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:DISTRIBUTION: "EAdensam DHagan, 3206 OPA, 2G5 JRoe TQuay ...

07/20/2018 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 (EPID L-2018-LRM-0041).

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 August 10, 2018 LICENSEE: Pacific Gas and Electric Company FACILITY: Diablo Canyon Nuclear Power Plant, Units 1 and 2 SUBJECT: SUMMARY OF JULY 20, 2018, PRE-SUBMITTAL MEETING WITH PACIFIC GAS AND ELECTRIC ...

Response to motions to present addl evidence by requesting acceptance of transmittal ltr & "Rept on Investigation of Reactor Coolant Pipe Weld Thickness at Diablo Canyon." W/o ltr & rept.Certificate of Svc encl.

- . _ - . .ed.,,C- vij.a,;,J dj.^ /Xi's:v7.) y upUNITED STATES OF AMERICAk[I$ [ (h)E'~\=NUCLEAR REGULATORY COMMISSION ;gI$ " MINs%VBEFORE THEATOMIC SAFETY AND LICENSING APPEAL BOARDN8 4In the Matter of))PACIFIC GAS AND ELECTRIC ) Docket No. 50-275 OLCOMPANY) Docket No. 50-323 ...

Forwards "Diablo Canyon Unit 2 Hot Piping Walkdown Final Rept." Rept provides info requested in Item 5 of License Condition 2.C.(11).Final rept for remaining items scheduled for mid-Jan 1985.

IREGULATOR'I NFORMATION DISTRIBUTION S EM (RIDS).ACCESSION NBRe8412270147 . DOC ~ DATE: 84/12/20 NOTARIZED: NO DOCKETFACIL:50 323 Diablo Canyon Nuclear Power Plant~ Unit 2g Pacific Ga 05000323AUTHBYNAMEAUTHOR AFFILIATIONSHIFFERiJ,D,-Pacific Gas 8 Electric Co ~RECIP~NAME RECIT'...

Diablo Canyon, Units 1 and 2, Request for Additional Information Email, Relief Request RVFLNG-INT3 - Alternative to ASME Code Pressure Test Requirements for Class 1 Reactor Vessel Flange Leakoff Lines, Third 10-Year Inservice Inspection Interval.

From: Polickoski, JamesTo: Soenen, Philippe RCc: Lent, Susan; Baldwin, Thomas (DCPP); Burkhardt, JanetSubject: RAI: Request for Additional Information in regards to Diablo Canyon Power Plant Relief Request RVFLNG-INT3 -U1 & U2 (TAC Nos. MF0408 and MF0409)Date: Friday, March 15...

Diablo Canyon, Units 1 & 2, Supplemental Response to Requested Information Part 2 of NRC Generic Letter 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors."

Pacific Gas andElectric Company'Donna Jacobs Diablo Canyon Power PlantVice President P. 0. Box 56Nuclear Services Avila Beach, CA 93424805.545.4600September 1, 2006 Fax: 805.545.4234PG&E Letter DCL-06-107U.S. Nuclear Regulatory CommissionATTN: Document Control DeskWashington, ...

Forwards application for stay.Requests limited stay of 1 wk from date of license approval by Commission to permit application to US Court of Appeals for emergency stay pending appeal.

CENTER FOR LAWIN THE Pusuc INTEREST''*^' *!".'A u s ..TMino FLOOn' " ' " ' " ' ' * * " " " ' ' " "CA. L. ,CfLL LANN LEE= " "; ,',",'gSLO. *~. L=.. CALeroR~i .co..- .."I"O.'"C i '.' OOC''""c."'' < * * ' " " ' ' ' ' ' ' ' - '(F COUNSELCEOF' REY COwANc"uM". 2"3E'.'?ADMINISTRATIVE...

Diablo Canyon Units 1 and 2, License Amendment 26 and 25, Clarifying the Types of Radioactivity Analyses and Lower Limits of Detection for Gaseous Effluents from the Waste Gas Decay Tanks, Plant Vent & Containment Purge..

December 28, 1987Docket 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 CT...

Special Report 03-02 W* Alternate Repair Criteria 90 Day Report Diablo Canyon, Unit 2 Eleventh Refueling Outage, Enclosures 5 Through 6.

Enclosure 5PG&E Letter DCL-03-076SPECIAL REPORT 03-02ENCLOSURE 5FRAMATOME ANP REPORT 51-5027436-00"EXAMINATION OF DIABLO CANYON UNIT 2 SG TUBES - FINAL REPORr'--------------------20440-9 (2/2002)AFRAMATOME ANPENGINEERING INFORMATION RECORD'IDocument Identifier 51 - 5027436 - 0...

Diablo Canyon, Units 1 and 2 - 180-Day Response to Request for Information Pursuant to Generic Letter 2003-01, "Control Room Habitability."

Pacific Gas andElectrc CompanyDavid H. Oatley Diablo Canyon Power PlantVice President and P.O. Box 56General Manager Avila Beach, CA 93424805.545.4350Fax: 605.545.4234December 9, 2003PG&E Letter DCL-03-166U.S. Nuclear Regulatory CommissionAttn: Document Control DeskWashington,...

Advises that transfer of 3,000 gallons of organic solvent from Bingham Canyon U facility,Utah to White Mesa Mill, acceptable.

,. ..e %gom necUNITED STATES-- [ 'gNUCLEAR REGULATORY COMMISSIONCo(| ntGlON IVis,/URAMUM ntC VEHELD omCEDENVER. COLORADO 80225J AN 0 81993'Docket No. 40-8681Umetco Minerals CorporationATIN: W. W. BriceMaintenance SuperintendentWhite Mesa Uranium MillP. O. Box 669Blanding, Utah...

Diablo Canyon Power Plant, Units 1 & 2 - Revision 25 to Updated Final Safety Analysis Report, Drawing 102016, sheet 6, Rev. 99, Make-Up Water system

E D C 0 B 0 N I r--0 I 0 00 Q) +-C 0 a, 0 v oc w CT> oVX (/J oL wwm A -07 0 (/) 00 NW L 11 - Q) er: 0 (j) wN=::i f-11 VJ Z 0 <( C) <( er: 0 U INPGIC I Size 60 61 34 NOlE: SHADED AREA ABANDONED EQUIP 10-07-2010 JBMX FxC2 DATE OWN RE IV 62 63 64 65 66 67 0-1 ~ SEAWATER DISTILLAT...

Diablo Canyon, Units 1 and 2 - Cover Letter for Submittal of Environmental Impact Documentation US Dept of Commerce, Deputy Assistant Secretary for Environmental Affairs.

UNITED STAT~wNUCLEAR REGULATORY COMMISSIONWASHINGTON, D. C. 205555Q-sv5Docket No.'50 "8~3DCT 22 1975DISTRIBUTION:NRC PDRLocal PDREP-2 ReadingEP-2 KreutzerEP-2 PH~ckets (ENVIRON)Dr. Sidney R. GallerDeputy Assistant Secretary forEnvironmentalAffai'rsU. S. Department of Commerce1...

Diablo Canyon Units 1 & 2, Notice Of Consideration, Reducing Steam Generator Water Level Low & Low - Low Setpoints From 15 Percent of Narrow Range Span to 7.2 Percent of Narrow Range Span.

June 16, 1988 Dockets 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: SUBJECT: DIABLO CANYON ...

11/07/2002, STARS-Meeting with Strategic Teaming and Resource Sharing-Integrated regulatory Affairs Group (Stars-IRAG) for the Licrensees of Callaway, Comanche Peak, Diablo Canyon, Palo Verde, South Texas and Wolf Creek Plants.

October 10, 2002MEMORANDUM TO: Stephen Dembek, Chief, Section 2Project Directorate IVDivision of Licensing Project Management Office of Nuclear Reactor RegulationFROM: Jack N. Donohew, Project Manager /RA/Project Directorate IVDivision of Licensing Project ManagementOffice of...

04/26/1974 Summary of Meeting Between the AEC and PG&E, Their Consultants, and USGS, to Discuss Seismic Issues, Particularly Offshore Faults, Related to the Design of the Diablo Canyon Units.

'fag'f g 5l974DOCKEi NOS: $0-2?S and 0»323APPLICANTS Pacific Gas and Electric Company (PGKE)PACILXTY: Mablo Canyon Units 1 and 2SURGERY OP I:ETXHG HELD MXTH PG&E AND USGS TO DXSCUSS SEXSHXC XSSUESREZATED TO THE DXA9?A) GQ6'OH Ul'KTS 1 AND 2A meeting between representatives of ...

Forwards correspondence from constituent D Morris re interest in Diablo Canyon plant re safety & environ issues.

_ - _ . -. -_- - - - . . - -- ,p g~' P'@., u.,,d,.amm nogin ==g a ,o,-c,, m r. . . _ . .,.MLiiin-* - = " ' ' 'Congreggof theEn(teh6tates , , , , , , , , , , , ,letTSRt f A AWO IM904=A4%eust O!Efptc$mtatibtfArraasme , .IEasMagtest,D.C. 20515.T- ,5----.~March 1, 1978,}LCLELgg EC...

Rev 0 to "Project Quality Plan for Providing Assistance & Svcs to Support NRC/IE Region V Personnel in NDE & Review of Radiographs at Diablo Canyon Nuclear Power Plant Units 1 & 2." Supporting documentation encl.

_...'. = . -...'^a rdm alar,a c. PAR: PQP-124-c o w s u tta w a suoimeensPage 1 of 9~etu onove, wascowssw11 Total Pages,with Attachment..PARAMETER, Inc.!Pr'oiect Quality Plan (PQP)-forProviding Assistance and Services to Support NRC/IE-Region V PersonnelinNondestructive Examin...

Diablo Canyon Units 1 and 2, Letter Submitting 3 Signed and 42 Conformed Copies of Responses to Questions Submitted with Letter Dated March 24, 1972.

PRONLPacf Ctc CHLe 5, RLactzie C'Prancisc&~ CsVfoxnia'6P K Am'XsDATE OF DOCUMENT:IIM 2I TR, MEMO:DATE RECEIVED2REPORT:TO:ORIG.: —.— — -CC: .OTHECLASS IF POST OFFICEACTION NECESSARY RsQOACZIONNECESSARZQFl DCONCURRENCECOMMENTQDATE ANSWERED:CIBY:DEscRlpTIQN: (Must Be Unclassified...

Notification of contract execution,Mod 1,to "Earthquake Potential & Max Credible Earthquake for Diablo Canyon Power Plant." Contractor:Univ of Nevada-Reno.

_ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _*.*NRC FORM 255CONTP ACT NUMBE R(10 761NRC-03-85-059.-DIVISION OF CONTRACTSMODIFICATION NUMBERU.S. NUCLE AR REGULATORY COMMISSIONOne (1)WASHINGTON. D.C. 20555ONEW D M...

Diablo Canyon Power Plant, Units 1 & 2 - Revision 25 to Updated Final Safety Analysis Report, Drawing 102016, Rev. 83, Sheet 13, Make-Up Water System.

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IR 05000275-14-002, 05000323-14-002; on 01/01/2014 - 03/21/2014; Diablo Canyon Power Plant; Operability Determinations and Functionality Assessments, Refueling and Other Outage Activities.

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION IV 1600 E. LAMAR BLVD. ARLINGTON, TX 76011-4511 April 23, 2014 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...