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Category:SAFETY EVALUATION REPORT--LICENSING & RELATED ISSUES
MONTHYEARML20207A7181999-05-13013 May 1999
Safety Evaluation Supporting Amends 134 & 132 to Licenses DPR-80 & DPR-82,respectively
ML20206H2861999-05-0303 May 1999
Safety Evaluation Supporting Amends 133 & 131 to Licenses DPR-80 & DPR-82,respectively
ML20206D5661999-04-29029 April 1999
Safety Evaluation Supporting Amends 132 & 130 to Licenses DPR-80 & DPR-82,respectively
ML20205B6061999-03-26026 March 1999
Safety Evaluation Supporting Amends 131 & 129 to Licenses DPR-80 & DPR-82,respectively
ML20249B6881998-06-11011 June 1998
Safety Evaluation Supporting Amends 128 & 126 to Licenses DPR-80 & DPR-82,respectively
ML20249B5961998-06-0505 June 1998
Safety Evaluation Supporting Amends 127 & 125 to Licenses DPR-80 & 82,respectively
ML20249B6041998-06-0505 June 1998
Safety Evaluation Supporting Amends 126 & 124 to Licenses DPR-80 & DPR-82,respectively
ML20248D4041998-05-28028 May 1998
Safety Evaluation Supporting Amends 125 & 123 to Licenses DPR-80 & DPR-82,respectively
ML20248L8761998-03-12012 March 1998
Safety Evaluation Supporting Amends 124 & 122 to Licenses DPR-80 & DPR-82,respectively
ML20197B7091998-02-27027 February 1998
Safety Evaluation Supporting Amends 123 & 121 to Licenses DPR-80 & DPR-82,respectively
ML20203L4881998-02-17017 February 1998
Safety Evaluation Supporting Amends 122 & 120 to Licenses DPR-80 & DPR-82,respectively
ML20203L2981998-02-13013 February 1998
Safety Evaluation Supporting Amends 121 & 119 to Licenses DPR-80 & DPR-82,respectively
ML20203M4321998-02-0303 February 1998
Safety Evaluation Supporting Amends 120 & 118 to Licenses DPR-80 & DPR-82,respectively
ML20149H4281997-07-17017 July 1997
Corrected SE Re Amends 119 & 117 to Licenses DPR-80 & DPR-82,respectively
ML20129G9351996-10-25025 October 1996
Safety Evaluation Supporting Amends 117 & 115 to Licenses DPR-80 & DPR-82,respectively
ML20129G7771996-10-25025 October 1996
Safety Evaluation Supporting Amends 116 & 114 to Licenses DPR-80 & DPR-82,respectively
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
ML20117E5541996-08-19019 August 1996
Safety Evaluation Supporting Amends 115 & 113 to Licenses DPR-80 & DPR-82,respectively
ML20117K4671996-05-28028 May 1996
Safety Evaluation Supporting Amends 113 & 111 to Licenses DPR-80 & DPR-82,respectively
ML20092F3411995-08-23023 August 1995
Corrected SE Supporting Amends 107 & 106 to Licenses DPR-82 & DPR-80,respectively
ML20082H9121995-04-11011 April 1995
Safety Evaluation Supporting Amends 99 & 98 to Licenses DPR-80 & DPR-82,respectively
ML20063M1481994-03-0303 March 1994
Safety Evaluation Supporting Amends 90 & 89 to Licenses DPR-80 & DPR-82,respectively
NUREG-0675, SER Concluding That Seismic Margins of Structures & Equipment/Components at Plant Reported in LTSP Final Rept Are Adequate Even After Considering Staff Estimate of Increased Seismic Ground Motions1992-04-17017 April 1992
SER Concluding That Seismic Margins of Structures & Equipment/Components at Plant Reported in LTSP Final Rept Are Adequate Even After Considering Staff Estimate of Increased Seismic Ground Motions
ML20092E0021992-01-22022 January 1992
Safety Evaluation Supporting Amends 67 & 66 to Licenses DPR-80 & DPR-82,respectively
ML20082V1441991-09-0606 September 1991
Safety Evaluation Supporting Amends 66 & 65 to Licenses DPR-80 & DPR-82,respectively
ML20082V2621991-09-0505 September 1991
Safety Evaluation Supporting Amends 65 & 64 to Licenses DPR-80 & DPR-82,respectively
ML20081L3021991-06-27027 June 1991
Safety Evaluation Supporting Amends 62 & 61 to Licenses DPR-80 & DPR-82,respectively
ML20081F2021991-05-23023 May 1991
Safety Evaluation Supporting Amends 61 & 60 to Licenses DPR-80 & DPR-82,respectively
ML20070H1821991-03-0606 March 1991
Safety Evaluation Supporting Amends 59 & 58 to Licenses DPR-80 & DPR-82,respectively
ML20246K9501989-07-10010 July 1989
Safety Evaluation Supporting Amends 42 & 41 to License DPR-80 & DPR-82,respectively
ML20245F8371989-06-22022 June 1989
Safety Evaluation Supporting Amends 41 & 40 to Licenses DPR-80 & DPR-82,respectively
ML20244C8771989-06-0707 June 1989
Safety Evaluation Supporting Amends 40 & 39 to Licenses DPR-80 & DPR-82,respectively
ML20244C8551989-06-0707 June 1989
Safety Evaluation Supporting Amends 39 & 38 to Licenses DPR-80 & DPR-82,respectively
ML20247H9771989-05-23023 May 1989
Safety Evaluation Supporting Amends 38 & 37 to Licenses DPR-80 & DPR-82,respectively
ML20247B1201989-05-10010 May 1989
Safety Evaluation Supporting Amends 37 & 36 to Licenses DPR-80 & DPR-82,respectively
ML20245L2511989-04-25025 April 1989
Safety Evaluation Supporting Amends 36 & 35 to Licenses DPR-80 & DPR-82,respectively
ML20245H6991989-04-14014 April 1989
Safety Evaluation Supporting Amends 34 & 35 to Licenses DPR-82 & DPR-80,respectively
ML20247L2931989-03-27027 March 1989
Safety Evaluation Supporting Amends 34 & 33 to Licenses DPR-80 & DPR-82,respectively
ML20153E5331988-08-29029 August 1988
Safety Evaluation Supporting Amends 31 & 30 to Licenses DPR-80 & DPR-82,respectively
ML20196E4811987-12-28028 December 1987
Safety Evaluation Supporting Amends 26 & 25 to Licenses DPR-80 & DPR-82,respectively
ML20238C4611987-12-16016 December 1987
Safety Evaluation Supporting Amends 24 & 23 to Licenses DPR-80 & DPR-82,respectively
ML20238C6061987-12-16016 December 1987
Safety Evaluation Supporting Amends 25 & 24 to Licenses DPR-80 & DPR-82,respectively
ML20235G7671987-09-18018 September 1987
Safety Evaluation Supporting Amends 21 & 20 to Licenses DPR-80 & DPR-82,respectively
ML20238D3871987-09-0303 September 1987
Safety Evaluation Supporting Amends 19 & 18 to Licenses DPR-80 & DPR-82,respectively
ML20238D3931987-09-0303 September 1987
Safety Evaluation Supporting Amends 20 & 19 to Licenses DPR-80 & DPR-82,respectively
ML20237L5631987-08-31031 August 1987
Safety Evaluation Supporting Amends 18 & 17 to Licenses DPR-80 & DPR-82,respectively
ML20237G5541987-08-27027 August 1987
Safety Evaluation Supporting Amends 17 & 16 to Licenses DPR-80 & DPR-82,respectively
ML20236H3811987-07-27027 July 1987
Safety Evaluation Supporting Amends 16 & 15 to Licenses DPR-80 & DPR-82,respectively
ML20215C4341987-06-12012 June 1987
Safety Evaluation Supporting Amends 14 & 13 to Licenses DPR-80 & DPR-82,respectively
ML20214W2851987-06-0808 June 1987
Safety Evaluation Supporting Amends 13 & 11 to Licenses DPR-80 & DPR-82,respectively
1999-05-03
[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
ML20207A7181999-05-13013 May 1999
Safety Evaluation Supporting Amends 134 & 132 to Licenses DPR-80 & DPR-82,respectively
ML20206H2861999-05-0303 May 1999
Safety Evaluation Supporting Amends 133 & 131 to Licenses DPR-80 & DPR-82,respectively
ML20206D5661999-04-29029 April 1999
Safety Evaluation Supporting Amends 132 & 130 to Licenses DPR-80 & DPR-82,respectively
ML20205B6061999-03-26026 March 1999
Safety Evaluation Supporting Amends 131 & 129 to Licenses DPR-80 & DPR-82,respectively
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
ML20249B6881998-06-11011 June 1998
Safety Evaluation Supporting Amends 128 & 126 to Licenses DPR-80 & DPR-82,respectively
ML20249B6041998-06-0505 June 1998
Safety Evaluation Supporting Amends 126 & 124 to Licenses DPR-80 & DPR-82,respectively
ML20249B5961998-06-0505 June 1998
Safety Evaluation Supporting Amends 127 & 125 to Licenses DPR-80 & 82,respectively
ML20248D4041998-05-28028 May 1998
Safety Evaluation Supporting Amends 125 & 123 to Licenses DPR-80 & DPR-82,respectively
ML20248L8761998-03-12012 March 1998
Safety Evaluation Supporting Amends 124 & 122 to Licenses DPR-80 & DPR-82,respectively
ML20197B7091998-02-27027 February 1998
Safety Evaluation Supporting Amends 123 & 121 to Licenses DPR-80 & DPR-82,respectively
ML20203J5141998-02-26026 February 1998
LER 98-S02-00:on 980127,following Security Sys Failure Compensatory Measures Were Not Implemented within 10 Minutes Due to Personnel Error.Caused by Failed Disk Drive. Replaced Disk Drives,Reviewed Security Computer Maint Plans
ML20203L4881998-02-17017 February 1998
Safety Evaluation Supporting Amends 122 & 120 to Licenses DPR-80 & DPR-82,respectively
ML20203L2981998-02-13013 February 1998
Safety Evaluation Supporting Amends 121 & 119 to Licenses DPR-80 & DPR-82,respectively
ML20203M4321998-02-0303 February 1998
Safety Evaluation Supporting Amends 120 & 118 to Licenses DPR-80 & DPR-82,respectively
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
ML20149H4281997-07-17017 July 1997
Corrected SE Re Amends 119 & 117 to Licenses DPR-80 & DPR-82,respectively
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
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.
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.
ML16342D5351997-01-31031 January 1997
WCAP-14826, Instrumentation Calibr & Drift Evaluation Process for Diablo Canyon Units 1 & 2,24 Month Fuel Cycle Evaluation.
ML16342D5541996-12-31031 December 1996
Non-proprietary Nrc/Util Meeting on Model 51 SG Tube Integrity & ARC Methodology.
DCL-97-045, Pacific Gas & Electric Co 1996 Annual Rept1996-12-31031 December 1996
Pacific Gas & Electric Co 1996 Annual Rept
ML20129G9351996-10-25025 October 1996
Safety Evaluation Supporting Amends 117 & 115 to Licenses DPR-80 & DPR-82,respectively
ML20129G7771996-10-25025 October 1996
Safety Evaluation Supporting Amends 116 & 114 to Licenses DPR-80 & DPR-82,respectively
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
ML20117E5541996-08-19019 August 1996
Safety Evaluation Supporting Amends 115 & 113 to Licenses DPR-80 & DPR-82,respectively
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
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
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
ML20117K4671996-05-28028 May 1996
Safety Evaluation Supporting Amends 113 & 111 to Licenses DPR-80 & DPR-82,respectively
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
ML20092F3411995-08-23023 August 1995
Corrected SE Supporting Amends 107 & 106 to Licenses DPR-82 & DPR-80,respectively
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
ML20082H9121995-04-11011 April 1995
Safety Evaluation Supporting Amends 99 & 98 to Licenses DPR-80 & DPR-82,respectively
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
ML20063M1481994-03-0303 March 1994
Safety Evaluation Supporting Amends 90 & 89 to Licenses DPR-80 & DPR-82,respectively
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
05000275/LER-1992-001, :on 920214,0608,19 & 25,plant Operated Outside of Design Basis Re App R Criteria.Caused by Personnel Error Due to Lack of Attention to Detail.Fire Watches Established, Operators Notified & Design Change Initiated1992-07-0808 July 1992
- on 920214,0608,19 & 25,plant Operated Outside of Design Basis Re App R Criteria.Caused by Personnel Error Due to Lack of Attention to Detail.Fire Watches Established, Operators Notified & Design Change Initiated
1999-07-12
[Table view] |
Text
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8t UNITED STATES j
NUCLEAR REGULATORY COMMISSION W ASHINGTON, D.C. 2066 Moot j
o SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION i
RELATED TO AMENDMENT NO. in7 TO FACILITY OPERATING LICENSE NO. DPR-80 AND AMENDMENT NO. inA TO FACILITY OPERATING LICENSE NO. DPR-82 PACIFIC GAS AND ELECTRIC COMPANY DIABLO CANYON NUCLEAR POWER PLANT. UNITS 1 AND 2 DOCKET NOS. 50-275 AND 50-323
1.0 INTRODUCTION
By application dated June 29, 1995, Pacific Gas and Electric Company (or the licensee) requested changes to the Technical Specifications (Appendix A to Facility Operating License Nos. DPR-80 and DPR-82) for the Diablo Canyon Nuclear Power Plant, Units 1 and 2 (DCPP). The proposed changes would revise the combined Technical Specifications (TS) for DCPP to add Mode 1 applicability to TS 3/4.4.2.2, " Safety Valves - Operating," and to change the low-temperature overpressure protection (LTOP) system enable temperature for Mode 4 applicability from 323 degrees F to 270 degrees F in TS 3/4.4.2.2,
" Safety Valves - Operating."
2.0 EVALUATION The licensee's submission of License Amendment Request (LAR) 94-07 dated August 17, 1994, inadvertently deleted Mode 1 applicability of TS 3/4.4.2.2,
" Safety Valves - Operating." The staff concurs with the licensee that the change to restore Mode 1 applicability to this specification is appropriate.
The licensee proposed changes to the TS associated with the LTOP system enable temperature in two submittals, LARs 94-07 and 94-09, both dated August 17, 1994.
LAR 94-09 proposed a change in the system enable temperature from 323 degrees F to 270 degrees F.
The staff issued the associated amendment (100/99 for Units 1 and 2, respectively) on April 13, 1995, approving the new system enable temperature. The licensee's submittal for LAR 94-07 added a reference to the system enable temperature to TS 3/4.4.2.2, " Safety Valves - Operating,"
l and included the 323 degrees F value. The licensee now proposes to revise the value contained in TS 3/4.4.2.2 to 270 degrees F to be consistent with the i
safety evaluation for Amendment 100/99 and the system enable temperature contained elsewhere in the TS. The staff concurs with the licensee that the change to include the correct system enable temperature in TS 3/4.4.2.2 is l
appropriate.
9509100147 950901 PDR ADOCK 05000275 P
PDR
o-l'.
3.0 STATE CONSULTATION
In accordance with the Commission's regulations, the California State official was notified of the proposed issuance of the amendments. The State official had no comments.
4.0 ENVIRONMENTAL CONSIDERATION
These amendments change a requirement with respect to the installation or use i
i of a facility component located within the restricted area as defined in 10 CFR Part 20.
The NRC staff has determined that the amendments involve no significant increase in the amounts, and no significant change in the types, l
of any effluents that may be released offsite, and that there is no i
significant increase in individual or cumulative occupational radiation exposure. The Commission has previously issued a propcsed finding that the amendments involve no significant hazards consideration, and there has been no public comment on such finding (60 FR 37098). Accordingly, the amendments meet the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9).
Pursuant to 10 CFR 51.22(b) no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendments.
5.0 CONCLUSION
s The Commission has concluded, based on the considerations discussed above, that (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendments will not be ininical to the common i
defense and security or to the health and safety of the public.
Principal Contributor:
M. A. Miller
(
Date:
August 23, 1995 d
1
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