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any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.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

Forwards SSER 28 which includes computerized allegation tracking sys printout.W/o encl.

OdApril 22,1985MEMORANDUM FOR: Chairman PalladinoComissioner RobertsComissioner AsselstineComissioner BernthalComissioner ZechFROM: William J. DircksExecutive Director for Operations*SUBJECT:CONSIDERATION OF LOW POWER LICENSE FOR DIABLO CANYON UNIT 2 -ISSUANCE OF SUPPLEMENT NO...

Requests that final rulemaking on emergency planning precede renewed hearings & that NRC renotice licensing proceedings to allow public to participate in resolving whether actions recommended in NUREG-0578 will protect public.

III IS9a ~0",ggtvLIi.'I"-typ„qGD. 5UI]L'AQ ~~7SIERRA CLUB SANTA LUCIA CHAPTERCctober1, 1979LKDOCUMEgyNl'OOMU. S. Nuclear Regulatory Commission'717H Street, N. N.Washington, D. C. 22055Attention: Mr. Joseph M. Hendrie, Chairman~'evp~fdyceCgo+'entlemen:The Santa Lucia Chapter of...

Summarizes ACRS 290th meeting on 840614-16 re PG&E program plan & schedule re seismic reevaluation.Consideration of consultant advice recommended.

.*.f'*%/ [o,UNITED STATES.l' ,ryjNUCLEAR REGULATORY COMMISSIONr e ADVISORY COMMITTEE ON REACTOR SAFEGUARDS*[W ASHINGT ON, D. C. 20555*o,%, . . . . . /June 20, 1984Honorable Nunzio J. PalladinoChairmanU. S. Nuclear Regulatory CommissionWashington, D. C.20555Dear Dr. Palladino:S...

Forwards SALP Repts 50-275/86-22 & 50-323/86-22 for Aug 1985 - Jul 1986.Mgt meeting not required,but may be requested within 10 days of ltr date.

_..;-*&~0CT 161986.Docket}Nos.50-275and50-323-Pacific Gas'and Electric Company77 Beale Street, Room 1451San Francisco, California 94106Attention:J. D. Shiffer, Vice PresidentNuclear Power Generation, LicensingGentlemen:Subject: Systematic Assessment of Licensee Performance (SA...

Diablo Canyon Power Plant, Unit 1 - Revision 25 to Updated Final Safety Analysis Report, Chapter 8, Drawing 445076, Rev. 19, Sheet 1, Electrical Single Line Meter And Relay Diagram 125 Volt DC System.

OLD4 CUTLINE E FOLD D C FOLD ------B co o A N ' CJ) 0 ' C r--Ol o u .. • C ---◄ 400A V Cl )52-131 I I G >---+---; R A AC/ t------< G rl ~ y I /DC I ~.y -I ( V /f----+-----1 A _ I _ I 30 \f-----+---_,,f74FN TTI TTI I I 17DCX '17DC 59DC llT>--------+------+-----<'59DC I 132 132 ...

G20110458/LTR-11-0348/EDATS: SECY-2011-0358 - Ltr. to Susan Harvey, re: NRC Hearing in San Luis Obispo on June 15, 2011 Regarding Diablo Canyon Nuclear Power Plant.

July 5, 2011 Ms. Susan Harvey North County Watch P.O. Box 455 Templeton, CA 93465 Dear Ms. Harvey: Thank you for participating in our public meeting process. The public’s active involvement in the NRC’s processes helps us not only fulfill our mission of keeping you...

Order (Allowing Limited Appearance Statement of Dr. Gilinsky).

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION ATOMIC SAFETY AND LICENSING BOARD Before Administrative Judges: Paul S. Ryerson, Chairman Dr. Gary S. Arnold Nicholas G. Trikouros In the Matter of PACIFIC GAS & ELECTRIC COMPANY (Diablo Canyon Nuclear Power Plant,...

Proposed findings of fact & conclusions of law.Certificate of Svc encl.

'82IlhR 22 A)0'35UNITED STATES OF M AMERICANUCLEAR REGULATORYCOI4NISSIONF",IC'...~ ~;',".~*~"jJ,,iiOCA'.~~„,'6.SH"'~"i)BAUCHBEFORE THE ATONIC SAFETY AND LICENSING BOARD)In the Natter of ))PACIFIC GAS AND ELECTRIC CONPANY ))(Diablo Canyon Nuclear Power Plant,)Units 1 and 2) ))D...

Affidavit of JD Shiffer re proposal to increase spent fuel storage capacity,approved by NRC on 860530.Intervenor risk allegations refuted.W/Certificate of Svc.

.. -- - .- - -. . _.1.UNITED STATES OF AMERICABEFORE THE UNITED STATES NUCLEAR REGULATORY COMMISSIONIn the Matter of)) Docket Nos. 50-275 0.L.A.PACIFIC GAS AND ELECTRIC COMPANY) 50-323 0.L.A.)(Diablo Canyon-Nuclear Power)Plant, Units No. 1 and 2)))AFFIDAVIT OF JAMES D. SHIFFER...

Response to NRC interrogatories on Contention 1 re util responsibility to demonstrate safety of high density reracking.Intervenors not responsible for solving waste storage problem.W/Certificate of Svc.Related correspondence.

__ _ . . _i'b .NIuse .AlL3 COttnt.VONO3M.&,00CXETE044 USNPCUNITED STATES OF AMERICANUCLEAR REGULATORY COMMISSION% DCT -6 P3 :13.BEFORE THE ATOMIC SAFETY AND LICENSING BOARDyc e .00Cnh c X N |!mmIn the Matter of )Docket Nos. 50-275 o d)50-323 OL 4PACIFIC GAS AND ELECTRIC COMPAN...

Proposed findings of fact & conclusions of law.* Replacement of current spent fuel storage racks w/new,high density storage racks discussed.Proof of Svc encl.

pN,,... .,i 'Edwin F.Lowr,, 00CKETEDDian M. Grueniich*GRUENEICH & LOWRY380 Hayes Street, Suite 4~87 JJN -8 P3 :20San Francisco, California94102'(415) 861-6930i;re ~Attorneys for'The Sierra Club#UNITED STATES OF AMERICANUCLEAR REGULATORY COMMISSIONBEFORE THE ATOMIC SAFETY AND L...

Responds to Generic Ltr 89-08, "Erosion/Corrosion-Induced Pipe Wall Thinning." Procedure including erosion/corrosion monitoring program & administrative & mgt organizational interface will be implemented prior to Feb 1990 outage.

gC CELE RATED Dl'BUTION DE MO.iSTATIONSYSTEM'\y ~IREGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR:8907260230 DOC.DATE: 89/07/19 NOTARIZED: YES DOCKET NFACIL:50-275 Diablo Canyon Nuclear Power Plant, Unit 1,Pacific Ga 0500027550-323 Diablo Canyon Nuclear Power Pl...

02/15/2005 Public Meeting with Pacific Gas and Electric Company regarding inspections findings from an engineering team inspection.

January 13, 2005SUBJECT: PUBLIC MEETING WITH PACIFIC GAS AND ELECTRIC COMPANYFACILITY: Diablo Canyon Power PlantDOCKETS: 50-275; 50-323DATE AND TIME: February 15, 20056 p.m. (PDT)LOCATION: Embassy Suites Hotel333 Madonna RoadSan Luis Obispo, CA 93405PURPOSE: To provide inspect...

07/27/2004, Notice of Public Meeting with Pacific Gas and Electric to Discuss Problem Identification & Resolution & Human Performance Issues.

July 1, 2004SUBJECT: PUBLIC MEETING WITH PACIFIC GAS AND ELECTRICCOMPANYFACILITY: Diablo Canyon Power PlantDOCKETS: 50-275; 50-323DATE AND TIME: July 27, 20046:00 p.m. - 8:00 p.m. (PDT)LOCATION: Pacific Gas and Electric Company Community Center6588 Ontario RoadSan Luis Obispo,...

Generic Fundamentals Examination Results.

January 5, 2005THIS LETTER DISTRIBUTED TO THE FOLLOWING DOCKET NUMBERS: Diablo Canyon Nuclear Power Plant, Units 1 and 2, Docket Nos.: 50-275; 50-323San Onofre Nuclear Generating Station, Units 2 and 3, Docket Nos.: 50-361; 50-362SUBJECT: GENERIC FUNDAMENTALS EXAMINATION R...

PGE Answer Opposing Proposed Amended Contention C.

1 August 25, 2015 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of: PACIFIC GAS AND ELECTRIC COMPANY (Diablo Canyon Power Plant, Units 1 and 2) ) ) ) ) ) ) Docket No. 50-275-LR Docket No. 50-323-LR PACI...

Requests resolution of SER Section 15.4.7.5 re natural circulation test issue be reflected in next SSER.

, -SEABROOK STATION s.%rEnginsering Officae ) ( 7=,[__.'~-)'July 18, 1986SBN-1165Putsc Service of New HampshireT.F. B7.1.2NEW HAMPSHIRE YANKEE DIVISIONUnited States Nuclear Regulatory CommissionWashington, DC 20555Attention: Mr. Vincent S. Noonan, Project DirectorPWR Project D...

Forwards application for amend to Licenses DPR-80 & DPR-82, incorporating undervoltage trip & shunt trip attachments testing recommended in WCAP-11312 for compliance w/Generic Ltr 85-09.

IIgCCP~RA.TED D1 HURON DEMONSTR TION SYSTEMREGULAT01 INFORMATION DISTRIBUTION TEM (RIDS)ACCESSION NBR:8812300182 DOC.DATE: 88/12/19 NOTARIZED: YES DOCKET ¹FACIL:50-2'/5 Diablo Canyon Nuclear Power Plant, Unit 1, Pacific Ga 0500027550-323 Diablo Canyon Nuclear Power Plant, Unit...

Responds to NRC ltr re violations noted in insp repts 50-275/99-301 & 50-323/99-301.Corrective actions:increase number of operations personnel used during exam validation process.

CATEGORY j.REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR:9904060224 DOC.DATE: 99/03/26 NOTARIZED: NO„DOCKETFACIL:50-275 Diablo Canyon Nuclear Power Plant, Unit 1, Pacific Ga 0500027550-323 Diablo Canyon Nuclear Power Plant, Unit 2, Pacific Ga 05000323AUTH.NAME...

Forwards clarifications & changes in response to NRC 850702 request for review certifying that Tech Specs reflect FSAR, SER & SSERs & as-built configuration of facility.Description of process used for review encl.

REGULATORY FORMATION DISTRIBUTION S EM (RIDS)ACCESSION NBR;8507290034 DOCoOATE: 85/07/18 NOTARIZED: YESFACIL:50-275 Diablo Canyon Nuclear Power Planti Unit lg, Pacific Ga50 323 Diablo Canyon Nuclear Power Planti Unit 2i Pacific GaAUTH.NAME AUTHOR AFFILIATIONSHIFFKRiJ.O, Pacifi...

Motion to include issues raised in Generic Issue 82 as contentions in proceeding & to direct preparation of EIS.* Board requested to direct preparation of EIS re possibility & impact of Zircalloy cladding fires.

[N[...DXMETEEEdwin F. LowryGRUENEICH & LOWRY380 Hayes Street, Suite 4'87 JUN 30 P3 :02San Francisco, California94102(415) 861-6930croAttorneys for The Sierra Club UCN '4;UNITED STATES OF AMERICANUCLEAR REGULATORY COMMISSIONBEFORE THE ATOMIC SAFETY AND LICENSING BOARD)In the Ma...