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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 - Response to Request for Additional Information on License Amendment Request for Digital Process Protection System Replacement and Submittal of Revised PPS Replacement System Quality Assurance Plan.

Pacific Gas and Electric Company® May 9, 201 3 B arry 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 PG&E Letter DCL-13-048 u.s. Nuclear Regulatory Commission ATTN: Doc...

12/19/2012-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).

t-p.n AEGlJ~ .:;;v' .qit",iI!, 01'", UNITED STATES NUCLEAR REGULATORY COMMISSION t:!

Summary of conference call on January 7, 2016, between the U.S. NRC and Pacific Gas and Electric Co. concerning the responses to RAI for the review of the Diablo Canyon Power Plant, Units 1 and 2, license renewal application (CAC NOS. MF4019 and MF4020).

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 January 14, 2016 LICENSEE: Pacific Gas and Electric Co. FACILITY: Diablo Canyon Power Plant, Units 1 and 2 SUBJECT: SUMMARY OF TELEPHONE CONFERENCE CALL HELD ON JANUARY 7, 2016, BETWEEN THE U.S. NU...

Diablo Canyon, Units 1 and 2 - Letter Transmitting Memorandum and Order and Notice of Hearing on Suspension of Construction Activities at Diablo Pending Completion of NEPA Environmental Review.

Docket Nos. 50-275and 50-323DistributigxqAZC PDRLoca1 PDR-- -- ~ - -- - —-Socket-(2)PWR-23/ZDRL R/FRC DeX'oungOGCCO(3)N Brown(2)APR g.8 1972.Pacific Gas and. Electric CompanyATTN: Mr. Frederick T. SearleVice President and General Counsel77Beale StreetSan Francisco> California ...

Diablo Canyon Unit 1 and 2, License Amendment 30 and 29, Allowing Initiation Valve of Reactor Trip on Tubine Trip to be Changed from Thermal Power Greater than 10% to Thermal Power Greater than 50%.

August 26, 1988Docket 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 HRoo...

Diablo Canyon Units 1 and 2, Central Coastal California Seismic Imaging Project (CCCSIP) Chapter 6, Appendix A.

Page 1 of 8 CCCSIP Report Chapter 6 Appendix A APPENDIX A Central Coastal California Seismic Imaging Project—Environmental Review, Permitting, and Baseline Monitoring INTRODUCTION As part of the response to the AB 1632 Report recommendation to use “three-dimensional [3D] geop...

Request for Additional Information Related to the Review of the Diablo Canyon Nuclear Power Plant, Units 1 And 2, License Renewal Application (TAC Nos. ME2896 and ME2897) - Time Limited Aging Analysis.

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555'()001 November 2,2010 Mr. John Conway Senior Vice President Generation and Chief Nuclear Officer Pacific Gas and Electric Company 77 Beale Street, MC B32 San Francisco, CA 94105 SUBJECT: REQUEST FOR ADDITION...

2017/03/30 NRR E-mail Capture - Acceptance Review - Relief Requests NDE-SLH U2, NDE-LSL U2, NDE-LHC U2, NDE-LHM U2, and NDE-ONV U2, Diablo Canyon Power Plant, Unit 2 (CAC Nos. MF9386 through MF9390)

1NRR-PMDAPEm ResourceFrom: Singal, BalwantSent: Thursday, March 30, 2017 1:43 PMTo: Richardson, MichaelSubject: Acceptance Review - Relief Requests NDE-SLH U2, NDE-LSL U2, NDE-LHC U2, NDE-LHM U2, and NDE-ONV U2, Diablo Canyon Power Plant, Unit 2 (CAC Nos. MF9386 through MF9390...

Diablo Canyon Power Plant, Units 1 and 3 - FRN - Withdrawal of an Amendment Request to Adopt TSTF-505, Revision 1, "Provide Risk-Informed Extended completion Times - RITSTF Initiative 4b (CAC Nos. MF3240 and MF3241; EPID L-2013-LLA-0001).

[7590-01-P] NUCLEAR REGULATORY COMMISSION [Docket Nos. 50-275 and 50-323; NRC-2014-0260] Pacific Gas and Electric Company; Diablo Canyon Power Plant, Units 1 and 2 AGENCY: Nuclear Regulatory Commission. ACTION: License amendment application; withdrawal by applicant. ...

Responds to 770519 ltr transmitting Righetti ltr,urging immediate issuance of OL on temporary basis for Diablo Canyon Nuclear Power Plant & questioning value of laws that require nearly four years to compile info to issue OL.

- _ _ _ - - _ - _ .q s!JUN 18 IFFDocket nos. 50-275and 50-323The Honoraole Robert LagmarsinoUnited States House of RepresentativesWashingtoh, D. C.20515!,Dear Congressman Lagmarsinos>I am pleased to respond to your letter of May 19, 1977, to Mr. Ben Rusche.Your letter forwarde...

06/24/2015 Meeting Notice with Public Outreach and Pacific Gas & Electric (PG&E) to Discuss the Current Operating Performance for Diablo Canyon Power Plant for the period January 1 - December 31, 2014.

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION IV 1600 E. LAMAR BLVD. ARLINGTON, TX 76011-4511 June 1, 2015 SUBJECT: PUBLIC OUTREACH AND MEETING WITH PACIFIC GAS & ELECTRIC (PG&E) FACILITY: Diablo Canyon Power Plant DOCKET: 50-275, 50-323 DATE AND TIME: Wedne...

G20030764/LTR-03-0807 - Letter to Senator Barbara Boxer responds to the December 23, 2003 letter urging NRC undertake an emergency inspection of the Diablo Canyon NPP following the December 22, 2003 earthquake

UNITED STATESNUCLEAR REGULATORY COMMISSIONWASHINGTON, D.C. 20555-0001December 24, 2003The Honorable Barbara BoxerUnited States SenateWashington, D.C. 20510Dear Senator Boxer: On behalf of the Nuclear Regulatory Commission (NRC), I am writing in response toyour December 23, 2...

Diablo Canyon Power Plant, Unit Nos. 1 and 2, Email, Request for Additional Information, License Amendment Request to Revise License Condition and Approve Cyber Security Plan (TAC Nos. ME4290 and ME4291).

From: Wang, Alan Sent: Monday, January 10, 2011 2:52 PM To: Soenen, Philippe R; Larry Parker Cc: Lent, Susan; Burkhardt, Janet Subject: FW: Diablo Canyon Power Plant Cyber Security Plan (ME4290 And ME4291) Philippe and Larry, By letter dated November July 22, 2010 (Agencywi...

Diablo Canyon, Unit 1 - Response to Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.3 Seismic Unit 1. Part 1 of 2.

Pacific Gas and ElectricCo~pany® November 27,2012 PG&E Letter DCL-12-118 u.s. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852 Docket No. 50-275, OL-DPR-80 Diablo Canyon Power Plant Unit 1 Edward D. Halpin Senior V ice Presiden...

Encl 1 - Amend 2 Lic - Ltr J Becker, Pacific Gas and Electric Co, Amendment No. 2 to Materials License No. SNM-2511 for the Diablo Canyon Independent Spent Fuel Storage Installation (ISFSI) TAC No. L24515 Docket No. 72-26.

PACIFIC GAS AND ELECTRIC COMPANY DOCKET NO. 72-26 DIABLO CANYON INDEPENDENT SPENT FUEL STORAGE INSTALLATION AMENDMENT TO MATERIALS LICENSE Amendment No. 2 License No. SNM-2511 1. The Nuclear Regulatory Commission (the Commission) has found...

Diablo Canyon Power Plant Units 1 and 2, ASME Section XI Inservice Inspection Program Relief Request NDE-SBR for the Third Ten-Year Interval Inservice Inspection to Allow Use of Alternate Requirements for Snubber Inspection Frequency.

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 93424May 1, 2008 805.545.3462Internal: 691.3462PG&E Letter DCL-08-040 Fax: 805.545.4234U.S. Nuclear Regulatory Commi...

LER 10-002-00 for Diablo Canyon, Unit 1 Regarding Potential Loss of Safety-related Pumps due to Degraded Voltage During Postulated Accidents.

Pacific Gas andElectric Company®James R. BeckerSite Vice PresidentDiablo Canyon Power PlantMail Code 104/5/601R 0. Box 56Avila Beach, CA 93424805.545.3462Internal: 691.3462Fax: 805.545.6445May 10, 2010PG&E Letter DCL-10-052U.S. Nuclear Regulatory CommissionATTN: Document Contr...

Holtec International Report HI-2125191, "Three Dimensional Thermal- Hydraulic Analyses for Diablo Canyon Site-Specific HI-STORM System with up to 28.74kW Decay Heat," Revision 0.

EnclosureAttachment 5PG&E Letter DIL-12-007Holtec International Report HI-2125191, "Three Dimensional Thermal-Hydraulic Analyses for Diablo Canyon Site-Specific HI-STORMSystem with up to 28.74kW Decay Heat," Revision 0, Non-ProprietaryVersionmmmmmHOLTECINTERNATIONALHoltec Cent...

Diablo Canyon Units 1 & 2, Amendments 1 & 4 to CPPR-39 & CPPR-69.

DEC 0698 Docket Nots. 50-275 and 50-323 Mr. John C. Morrissey Vice President & General Counsel Pacific Gas & Electric Company 77 Beale Street San Francisco, California 94106 Dear Mr. Morrissey: SUBJECT: AMENDMENT NOS. 1 AND 4 TO CPPR-39 AND CPPR-69 (Diablo Canyon Nuclear Power...

Forwards "Diablo Canyon Verification Program," Semimonthly Rept 26 for 821109-1122.

REGULATORY INFORMATION DISTRIBUTION SY'M(RIDS)-cSACCESSION NBR:8212060047 DOC~ DATE: 82/11/2Q NOTARIZED: NO DOCKETFACIL:50 275 Diablo Canyon Nuclear Power Planti Unit ii Pacific Ga 05000275AUTH NAME AUTHOR Af FILIATIONCRANEcP,AD Pacific Gas lt Electric Co,'REC I P ~NAME RECIPI...

Diablo Canyon Units 1 & 2 Response to NRC Letter dated September 22, 2010, Summary of Telephone Conference Call Held on August 5, 2010, Between US NRC and Pacific Gas & Electric Company Concerning Responses to Request for Additional Information .....

Pacific Gas and Electric Company® October 15, 2010 PG&E Letter DCL-1 0-137 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20852 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 Presid...

2015/09/08 NRR E-mail Capture - Diablo Canyon, Units 1 and 2 - Acceptance Review of LAR 15-03 to Adopt the Alternative Source Term per 10 CFR 50.67 (TAC Nos. MF6399 and MF6400)

1NRR-PMDAPEm ResourceFrom: Lingam, SivaSent: Tuesday, September 08, 2015 2:24 PMTo: Soenen, Philippe R (PNS3@pge.com)Cc: Markley, Michael; Jackson, Christopher; Hardgrove, Matthew; Obodoako, Aloysius; Bucholtz, Kristy; Keefe, Molly; Breach, Michael; Hoang, Dan; Basturescu, Ser...

Comment (26) of Mary A. Ciesinski on behalf of the Environmental Center of San Luis Obispo (ECOSLO), on Diablo Canyon Power Plant, Units 1 and 2; Notice of Intent to Prepare an Environmental Impact Statement (EIS).

office:246 s. -guera st. Phne805)5441777San Luis Obispo, CA 93401 Email: info@ecoslo.orgMail: P0 Box 1014 Online: www.ecoslo.orgSan Luis Obispo, CA 93406 ENVIRONMENTAL CENTEROF SAN LUIS OBISPOProtecting and enhancing the Central Coast since 1971August 25, 2015 Z///'-&/U.S. Nuc...

Diablo Canyon Power Plant, Unit Nos. 1 and 2 - Request for Withholding Information From Public Disclosure, affidavit Dated December 4, 2019, executed by Maureen R. Zawalick, regarding Site-Specific Decommissioning Cost Estimate (EPID L-2019-LLL-0005)

January 16, 2020 Mr. James M. Welsch 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 SUBJECT: DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2 – R...

Response to Request for Deferral of Issuance of Renewed Operating Licenses and Revision of Schedule for the Review of the Diablo Canyon Nuclear Power Plant, Units 1 and 2, License Renewal Application.

May 31, 2011 Mr. John Conway Senior Vice President, Generation and Chief Nuclear Officer Pacific Gas and Electric Company 77 Beale Street, MC B32 San Francisco, CA 94105 SUBJECT: RESPONSE TO REQUEST FOR DEFERRAL OF ISSUANCE OF RENEWED OPERATING LICENSES AND REVISION OF S...