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Category:GENERAL EXTERNAL TECHNICAL REPORTS
MONTHYEARML20211A9981999-07-12012 July 1999 Draft,Probabilistic Safety Assessment, Risk Info Matrix, Risk Ranking of Systems by Importance Measure ML20205F5881997-07-24024 July 1997 Decommissioning Cost Estimate for Diablo Canyon Power Plant,Units 1 & 2 ML20236Q2611996-04-15015 April 1996 Rev 0 to DCP M-050284, Design Change Package for Installation of CCW Surge Tank Pressurization Sys for Unit 1 ML20086T1001991-12-31031 December 1991 Adequacy of Seismic Margins Assuming Increase in Amplitude of Diablo Canyon Seismic Long-Term Program Horizontal & Vertical Ground Motions Described in Sser 34 ML20246E4891989-06-30030 June 1989 Quarterly Sys Status Rept,2nd Quarter 1989,Sys 65 120V Instrument AC Sys,Sys 66 120V Security UPS Sys & Sys 67 125/250VDC Sys ML20153B0411988-03-31031 March 1988 Comments on ACRS Subcommittee on Diablo Canyon Meeting on 880223-24 in Burlingham,Ca Re Status of Long Term Seismic Program of Plant ML20155G0541984-04-30030 April 1984 Preliminary Rept on Status of IGSCC in SG Tube U-Bends ML20215H0121984-02-29029 February 1984 Followup of Alleged Deficiencies in QA Program at Diablo Canyon Nuclear Plant ML20210E7741984-01-25025 January 1984 Bostron-Bergen/Meddco Metals Allegations Investigation Interim Rept ML20072H3421983-12-31031 December 1983 Unit 1,Independent Design Verification Program Final Rept, Fifth Text Submittal ML20082T9221983-12-0909 December 1983 Semimonthly Rept 51:Diablo Canyon Verification Program ML20082G7021983-11-23023 November 1983 Semimonthly Status Rept 50,Diablo Canyon Verification Program ML20080K4131983-09-19019 September 1983 Rev 0 to Diablo Canyon Unit 1 Idvp Verification of Corrective Action,Turbine Bldg, Interim Technical Rept 56 ML20078B7111983-09-16016 September 1983 Rev 0 to Idvp Verification of Diablo Canyon Unit 1 Activities - Rupture Restraints, Interim Technical Rept 65 ML20080T0051983-09-0101 September 1983 Summary & Evaluation Rept of Rl Cloud & Assoc Rept, Diablo Canyon Unit 1 Idvp - Small Bore Piping Rept ML20080T0031983-09-0101 September 1983 Summary & Evaluation Rept of Rl Cloud & Assoc Rept, Diablo Canyon Unit 1 Idvp - Soil - Outdoor Water Storage Tanks ML20080T0131983-09-0101 September 1983 Summary & Evaluation Rept of Rl Cloud & Assoc Rept, Idvp Valves ML20080T0091983-09-0101 September 1983 Summary & Evaluation Rept of Rl Cloud & Assoc Rept, Diablo Canyon Unit 1 Idvp - HVAC Components ML20080T0161983-09-0101 September 1983 Summary & Evaluation Rept of Rl Cloud & Assoc Rept, Idvp - HVAC Duct & Supports Rept ML20080S9981983-09-0101 September 1983 Summary & Evaluation Rept of Rl Cloud & Assoc Rept Diablo Canyon Unit 1 Idvp - Soils - Intake Structure ML20080S9891983-09-0101 September 1983 Summary & Evaluation Rept of Rl Cloud & Assoc Rept, Diablo Canyon Unit 1 Idvp - Verification Program for PG&E Corrective Action ML20080S9911983-09-0101 September 1983 Summary & Evaluation Rept of Rf Reedy Rept, Development of Svc-Related Contractor List for Nonseismic Design Work Performed for Diablo Canyon Nuclear Power Plant,Unit 1 Prior to 780601,Phase II ML20080S9941983-09-0101 September 1983 Summary & Evaluation Rept of Rl Cloud & Assoc Rept, Diablo Canyon Unit 1 Idvp - Verification of Design Analysis Hosgri Spectra ML20024D0831983-07-25025 July 1983 Rev 2 to Verification of Instrument & Control Design of Control Room Ventilation & Pressurization Sys, Interim Technical Rept 28 ML16341B9951983-07-25025 July 1983 Rev 2 to Verification of Pressure,Temp,Humidity & Submergence Environs Used for Safety-Related Equipment Spec Outside Containment for Auxiliary Feedwater Sys & Control Room Ventilation..., Interim Technical Rept 14 ML20077H9771983-07-0101 July 1983 Rept on Investigation of Reactor Coolant Pipe Weld Thickness at Diablo Canyon ML20076M0771983-06-15015 June 1983 Chronolgy of Events ML20065C2001983-02-18018 February 1983 Independent Design Verification Program,Electrical Equipment Analysis, Interim Technical Rept 33,Rev 0 ML20070S3911983-01-28028 January 1983 Verification Program, Semimonthly Rept 30 for 830111-24 ML20028D9581982-12-13013 December 1982 Verification of Fire Protection Provided for Auxiliary Feedwater Sys,Control Room Ventilation & Pressurization Sys, Safety-Related Portion of 4,160 Volt Electric Sys, Interim Technical Rept 18,Rev 0 ML20210P5751982-12-0707 December 1982 Interim Technical Rept on Diablo Canyon Unit 1 Idvp:Interim Technical Rept 12,Rev 0,Piping,Interim Technical Rept 17, Rev 0,Piping-Addl Samples ML20210P4821982-10-29029 October 1982 Rev 0 to Diablo Canyon Unit 1 Idvp Verification of Design Analysis Hosgri Spectra, Interim Technical Rept 10 ML20023A9351982-09-24024 September 1982 Independent Design Verification Program,Semimonthly Rept,IDVP-SM-Sept 1982 ML20210P2601982-09-13013 September 1982 Interim Technical Rept on Diablo Canyon Unit 1 Idvp,Small Bore Piping,Interim Technical Rept 30,Rev 0 ML20069D9461982-09-10010 September 1982 to Independent Design Verification Program Auxiliary Bldg, Interim Technical Rept ML20063J7261982-08-27027 August 1982 Semimonthly Rept 20,Diablo Canyon Verification Program, 820810-23 ML20210P1921982-06-22022 June 1982 Interim Technical Rept on Diablo Canyon Unit 1 Idvp, Verification of Design Analysis Hosgri Spectra - Interim Technical Rept 10,Rev 0 ML20053D3961982-05-28028 May 1982 Verification Program, Semimonthly Rept 14 ML20136B3361982-04-15015 April 1982 Comments on Rf Reedy,Inc,Qa Audit Rept on Safety-Related Activities Performed by PG&E Prior to June 1978 ML19264C7821982-02-27027 February 1982 Design Verification Program,Seismic Svc Related Contracts Prior to June 1978, Revision 1,Phase I ML16340C3591982-02-26026 February 1982 Progress Rept of Seismic Svc-Related Contracts Prior to June 1978, Project 105-4,Progress Rept 8 for Work Period 820213-26 ML20136B2781981-12-0303 December 1981 Design Verification Program Seismic Svc-Related Contracts Prior to June 1978 ML20204E9121981-11-26026 November 1981 Draft Seismic Verification Program ML16340C1211981-11-25025 November 1981 Semimonthly Status Rept Diablo Canyon Seismic Review Program,811112-23. ML20100M0471981-11-12012 November 1981 Draft Preliminary Rept of Project 105-4, Seismic Reverification Program ML20116B5501981-10-31031 October 1981 Draft Preliminary Rept on Design Interface Review of Seismic Reverification Program ML20039G2531981-08-31031 August 1981 Emergency Plan Evaluation Rept on Diablo Canyon Nuclear Power Plant,Pg&E Emergency Plan Dtd Aug 1981. ML16340B9981981-08-19019 August 1981 Evaluation Findings,Diablo Canyon Nuclear Power Plant Offsite Emergency Response Plans Exercise. ML20004B6851981-05-22022 May 1981 Scaling Laws for Large Earthquakes - Consequences for Physical Models. ML16340B7721981-05-22022 May 1981 Character of High Frequency Strong Ground Motion. 1999-07-12
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20211A9981999-07-12012 July 1999 Draft,Probabilistic Safety Assessment, Risk Info Matrix, Risk Ranking of Systems by Importance Measure DCL-99-045, 1998 Annual Financial Rept for PG&E Corp. with1998-12-31031 December 1998 1998 Annual Financial Rept for PG&E Corp. with ML20217G5151997-12-31031 December 1997 1997 PG&E Corp Annual Rept ML20205F5881997-07-24024 July 1997 Decommissioning Cost Estimate for Diablo Canyon Power Plant,Units 1 & 2 ML17264A9381997-07-10010 July 1997 Deficiency Rept Re Potential Safety Hazard Associated w/FM-Alco 251 Engin,High Pressure Fuel tube-catalog: 4401031-2 in Which Dual Failure Mode Exists.Caused by Incorrect Forming Process ML18102B6911997-01-31031 January 1997 Monthly Operating Repts for Jan 1997 for Diablo Canyon Power Plant,Units 1 & 2.W/970218 Ltr ML16342D5351997-01-31031 January 1997 WCAP-14826, Instrumentation Calibr & Drift Evaluation Process for Diablo Canyon Units 1 & 2,24 Month Fuel Cycle Evaluation. ML16343A4741997-01-31031 January 1997 WCAP-11595,Rev 2, W Improved Thermal Design Procedure Instrument Uncertainty Methodology Diablo Canyon Units 1 & 2 24 Month Fuel Cycle Evaluation. ML17083C6231997-01-31031 January 1997 Rev 4 to WCAP-13705, W Setpoint Methodology for Protection Sys Diablo Canyon Units 1 & 2,24 Month Fuel Cycle Evaluation. DCL-97-045, Pacific Gas & Electric Co 1996 Annual Rept1996-12-31031 December 1996 Pacific Gas & Electric Co 1996 Annual Rept ML16342D5541996-12-31031 December 1996 Non-proprietary Nrc/Util Meeting on Model 51 SG Tube Integrity & ARC Methodology. ML20129J4311996-10-18018 October 1996 Safety Evaluation Approving Corporate Restructuring & Establishment of Holding Company Under Temporary Name PG&E Parent Co.,Inc of Which PG&E Would Become Wholly Owned Subsidiary DCL-96-155, Revised Special Rept SR 95-05:on 950806,EDG 1-2 to Achieve Rated Output Frequency within TS Limits.Caused by Degraded Electronic Governor Performance.Replaced Electronic Governor Motor Operated Potentiometer & Electronic Governor1996-07-22022 July 1996 Revised Special Rept SR 95-05:on 950806,EDG 1-2 to Achieve Rated Output Frequency within TS Limits.Caused by Degraded Electronic Governor Performance.Replaced Electronic Governor Motor Operated Potentiometer & Electronic Governor ML20116B8491996-07-22022 July 1996 Revised Special Rept SR 95-03:on 950621,EDG 1-2 Failed to Load During Surveillance Testing.Caused by Loose Fuse Holder Contact Clip.Retensioned Loose Fuse Holder Contact Clip & Tightened Loose Wire Connection ML20116B8521996-07-22022 July 1996 Revised Special Rept SR 95-04:on 950718,EDG 1-2 Load Swings Occurred.Caused by Defective Electronic Governor Stability Potentiometer.Replaced Electronic Governor ML20236Q2611996-04-15015 April 1996 Rev 0 to DCP M-050284, Design Change Package for Installation of CCW Surge Tank Pressurization Sys for Unit 1 ML20094M6251995-11-21021 November 1995 Final Part 21 Rept of Investigation & Analysis of Suspect Fasteners Event 29257.B&G-Cardinal Discontinued Using Heat Treatment Equipment at Cardinal Facility Until Such Time That Satisfactory Mods Made to Hardware & Procedures ML18064A8631995-08-14014 August 1995 LER 95-004-00:on 950714,determined That Redundant DG Circuits Not Separated Per App R Due to Insufficient App R Program Documentation.Hourly Fire Tour Established in EDG 1-1 Room & Review of LERs for App R Completed ML18100B2981994-05-24024 May 1994 LER 94-014-00:on 940426,SG 1-2 Automatically Started When Two Indicating Light Sockets Shorted Together Due to Personnel Error.Description of Event & Lessons Learned Will Be Published in Operations Incident Summary.W/940524 Ltr ML16342C3091993-12-31031 December 1993 Monthly Operating Repts for Dec 1993 for Dcnpp Units 1 & 2 ML16342A3691993-08-31031 August 1993 Revised MOR for Aug 1993 for Dcnpp Unit 1 ML16342A3681993-07-31031 July 1993 Revised MOR for July 1993 for Dcnpp Unit 1 ML20046A6611993-07-21021 July 1993 Cycle 6 Startup Rept. ML20059G6811993-06-30030 June 1993 Revised MOR for June 1993 for Dcnpp Unit 1 ML16342A3671993-05-31031 May 1993 Revised MOR for May 1993 for Dcnpp Unit 1 ML20045D1731993-05-31031 May 1993 Monthly Operating Repts for May 1993 for Diablo Canyon,Units 1 & 2 ML20126J5961992-12-31031 December 1992 Part 21 Rept Re Potential Loss of RHR Cooling During Nozzle Dam Removal.Nozzle Dams May Create Trapped Air Column Behind Cold Leg Nozzle Dam.Mod to Nozzle Dams Currently Underway. Ltrs to Affected Utils Encl ML20141M0471991-12-31031 December 1991 Pge Annual Rept - 1991 ML20086T1001991-12-31031 December 1991 Adequacy of Seismic Margins Assuming Increase in Amplitude of Diablo Canyon Seismic Long-Term Program Horizontal & Vertical Ground Motions Described in Sser 34 ML16341G4871991-11-30030 November 1991 Nonproprietary Technical Justification for Eliminating Large Primary Loop Pipe Rupture as Structural Design Basis for Diablo Canyon Units 1 & 2 Nuclear Power Plants. ML20085D2951991-08-21021 August 1991 Field Exercise Scenario,Aug 1991 ML20070S7311990-12-31031 December 1990 Analysis of Capsule X from Diablo Canyon Unit 2 Reactor Vessel Radiation Surveillance Program ML20065R8731990-11-30030 November 1990 Monthly Operating Repts for Diablo Canyon Units 1 & 2 for Nov 1990 ML20058P5181990-05-11011 May 1990 Accident Sequence Precursor Program Event Analysis 323/87-005 R2, Loss of RHR Cooling Results in Reactor Vessel Bulk Boiling ML20058P5131990-04-0505 April 1990 Accident Sequence Precursor Program Event Analysis 424/PNO-IIT-90-02A, Loop,Diesel Generator Failure & 36 Min Interruption of SDC During Mid-Loop Operation ML20058P5221990-02-0303 February 1990 Accident Sequence Precursor Program Event Analysis Loss of Reactor Protection Sys Bus B Causes Loss of Shutdown Cooling ML20006E5441989-11-30030 November 1989 Review of Flow Peaking & Tube Fatique in Diablo Canyon Units 1 & 2 Steam Generators. ML20006C6681989-11-30030 November 1989 Nonproprietary WCAP-12416, Evaluation of Thermal Stratification for Diablo Canyon Units 1 & 2 Pressurizer Surge Line. ML20246E4891989-06-30030 June 1989 Quarterly Sys Status Rept,2nd Quarter 1989,Sys 65 120V Instrument AC Sys,Sys 66 120V Security UPS Sys & Sys 67 125/250VDC Sys ML20245G9881989-06-16016 June 1989 Has Been Canceled.Resolution of LERs Missing from Lertrk/Scss/Dcs Discussed DCL-89-117, Special Rept:On 890406,main Steam Line Radiation Monitor 1RM-71 Alarmed & Declared Inoperable.Caused by Failure of Detector Tube.Tube Replaced.Monitor Returned to Svc on 8904181989-04-27027 April 1989 Special Rept:On 890406,main Steam Line Radiation Monitor 1RM-71 Alarmed & Declared Inoperable.Caused by Failure of Detector Tube.Tube Replaced.Monitor Returned to Svc on 890418 ML20247M6281989-03-31031 March 1989 Nonproprietary Advanced Digital Feedwater Control Sys Median Signal Selector for Diablo Canyon Units 1 & 2 ML20246P4461989-03-23023 March 1989 Corrected Diablo Canyon Power Plant Unit 2 Second Refueling Outage Inservice Insp (ISI) Rept ML20236E0581988-12-31031 December 1988 Pacific Gas & Electric Co Annual Rept 1988 ML20247H0761988-11-30030 November 1988 Vol 1 to Bit Elimination Study for Diablo Canyon Units 1 & 2 ML20205S9071988-10-31031 October 1988 Steam Generator U-Bend Tube Fatigue Evaluation ML20153E5331988-08-29029 August 1988 Safety Evaluation Supporting Amends 31 & 30 to Licenses DPR-80 & DPR-82,respectively ML20206E7181988-05-30030 May 1988 Analysis of Capsule U from PG&E Diablo Canyon Unit 2 Reactor Vessel Radiation Surveillance Program ML20195G3301988-04-30030 April 1988 Corrected Monthly Operating Repts for Apr 1988 for Diablo Canyon ML20153B0411988-03-31031 March 1988 Comments on ACRS Subcommittee on Diablo Canyon Meeting on 880223-24 in Burlingham,Ca Re Status of Long Term Seismic Program of Plant 1999-07-12
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SUMMARY
AND EVALUATION REPORT Report
Title:
Diablo Canyon Unit I Independent Design Verification Program
-Verfication Program for PG&E Corrective Action-Report No. ITR-8, P105-4-839-008 Revision 0 Report Date: 9/10/82 Autho r: Robert L. Cloud Associates Edward Denison Project Manager I" B310180613 830901 PDR FOIA .
CALSOYA83-483 PDR , ,
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This is the Eighth Interim Technical Report prepared by the DCNPP-IDVP.
It delineates.the verification program that the IDVP will impleaent to verify the PG&E corrective actions undertaken to address concerns noted in Error and Open Item Reprots, IDVP Interim Technical Reports and PG&E Internal Technical Repo rts.
It is stated the IDVP will employ three basic approaches to assure proper implementation of the PG8E corrective action. In cases etere complete reanalysis is performed the IDVP will perform design verifications of the work that was reanalyzed. In cases where a complete review is made followed by renalysis of deficient segments, the IDVP will perform design verifications on sample calculations and the PG&E reviews. Lastly, in cases where review or analysis of only a sample is employed, the IDVP will examine and evaluate the sample validity and perform design verifications on the sample.
-The IDVP will also verify PG8E design office activities, as built information at the site and all physical modifications resulting from specific E01's or PG8E corrective actions. The acceptance criteria (not stated) is said to be similar to that given in the Phase II Engineering Program Plan.
Differences will be noted and Open Item Reports issued if the source of difference is judged significant.
The report providts a summary description of the PG&E evaluation effort
- and the intended IDVP verification ef fort for each building structure and component classification. The PG&E plan for the following specifies a complete reivew of dyna'mic analyses and member qualifications if pertinent.
- Containment Structure Auxiliary Building Intake Structure Large Bore Piping Large Bore Piping Supports Small Bore Piping qualified by computer analysis
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, s For each of these the IDVP will consider the PG&E:
scope - verifying completeness and consistency with licensing docurents, revi ew - verifying all inputs and criteria, and per-forming design verifications on qualifications judged acceptable, reanalysi s - verifying methodology, criteria, design office technical interf ace control and as-built condi-tions, performing design verifications on addi-tional qualifications.
For building structures a complete verification is implied whereas for multi-analysis categories (Large Bore Piping) a stated number of analyses will be verified and specific, stated items investigated.
The PG&E plan specifies a complet:reandaysis for the Fuel Handling Building and Electrical ~ Raceways. For these, the IDVP will review scope and analysis as specified above.
The PG&E plan specifies a complete review of seismic inputs for Design
- Class 1 Mechanical Equipment, Electrical Equipnent and Instrumentation, and HVAC Equipment. For these, the IDVP will verify the scope and review as stated above.
The PG&E plan specifies analysis of a sample to demonstrate conservative design for Small Bore Pipe Supports, Instrument Tubing and Tubing Supports and Small Bore Piping qualified by span criteria. For these, IDVP will consider:
r s ampli ng - verifying the adequacy of sample size to detennine if generic conclusions can be drawn through applica-tion of the sampling methodology, analysis - perform design verifications verifying criteria, methodology procedures and compliance with li-censing documents.
The IDVP plan for the Turbine building will be developed when the PG8E plan for this building is obtained.
The review plan presented is compreshensive. It provides for verification of the entire PG&E ef fort with special attention being directed towards those areas for which E0I's or generic concerns were issued during the earlier IDVP evaluations. Properly implemented it should provide a effective means of verifying the adequacy of PG&E corrective actions.
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