ML20197G383
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| ML20197G383 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 04/25/1984 |
| From: | Schierling H Office of Nuclear Reactor Regulation |
| To: | Case E, Harold Denton, Edison G NRC |
| Shared Package | |
| ML20197G068 | List:
|
| References | |
| FOIA-86-744 NUDOCS 8405150444 | |
| Download: ML20197G383 (1) | |
Similar Documents at Diablo Canyon | |
|---|---|
Category:INTERNAL OR EXTERNAL MEMORANDUM
MONTHYEARML20211H4441999-08-27027 August 1999
[Table view]Notification of Significant Meeting with Util on 990916 & 17 in Arlington,Tx to Improve Utility & NRC Understanding of Industry & Regulatory Perspectives on Current Issues ML20196D7021999-06-25025 June 1999 Informs That Reactor Sys Branch Prepared Suppl 1 to GL 83-11 Re Licensee Qualification for Performing Safety Analyses, Which Was Issued on 990624.Matl Related to Subj GL Should Be Placed in PDR & Made Available to Public DD-99-05, Forwards Monthly Rept on Status of 10CFR2.206 Petition as of 990331.During March,Director'S Decision (DD-99-06) on Browns Ferry & DD on Army Corps of Engineers Was Issued & (DD-99-05) on Diablo Canyon Became Final Agency Action1999-04-20020 April 1999 Forwards Monthly Rept on Status of 10CFR2.206 Petition as of 990331.During March,Director'S Decision (DD-99-06) on Browns Ferry & DD on Army Corps of Engineers Was Issued & (DD-99-05) on Diablo Canyon Became Final Agency Action ML20205J2811999-04-0606 April 1999 Notification of 990422 Meeting for Dockets 7200026 & 7200027 with PG&E in Rockville,Md to Dicuss PG&E Plans for Dry Cask Storage at Humboldt Bay & Diablo Canyon ML20205B2301999-03-25025 March 1999 Forwards NRC Approved Operator Licensing Exam (Facility Outline & Initial Exam Submittal & as-given Operating Exam) for Tests Administered on 990125-28 IR 05000275/19993011999-03-25025 March 1999 Forwards NRC Operator Licensing Exam Repts 50-275/99-301 & 50-323/99-301 for Tests Administered on 990125-28 ML20207M3401999-03-0202 March 1999 Notification of Canceled Meeting Scheduled for 990309 Re 7200026 & 7200027 for PG&E Plans for Dry Cask Storage at Humboldt Bay & Diablo Canyon ML20155H9051998-11-0303 November 1998 Notification of 981117 Meeting for Dockets 7200026 & 7200027 with Util in Rockville,Md to Discuss PG&E Plans for Dry Cask Storage ML20248K4451998-06-0202 June 1998 Notification of 980617 Meeting W/Util in Rockville,Md to Discuss PG&E Plans for Dry Cask Storage.Meeting Agenda Encl ML20247G9081998-04-0707 April 1998 Discusses Experts Needed for Plant Life Extension Cases,Per 980403 Discussion ML20136C1031997-03-0606 March 1997 Forwards Correspondence Transmitted Via Internet to J Zwolinski from P Blanch During 970102-31.Requests Correspondence Be Placed in PDR ML20134P2231997-02-20020 February 1997 Discusses Ti 2515/122 Evaluation or Rosemount Pressure Transmitter Performance & Licensee Enhanced Surveillance Programs multi-plant Action B-122 NUREG-1299, Forwards Continuation of Curtiss Papers to Be Filed Under Commission Correspondence in Pdr.Advanced Copy Sent to Pdr. List of Documents Included in Four Boxes Encl1994-06-29029 June 1994 Forwards Continuation of Curtiss Papers to Be Filed Under Commission Correspondence in Pdr.Advanced Copy Sent to Pdr. List of Documents Included in Four Boxes Encl ML20134B5061994-04-13013 April 1994 Submits Plants Which Will Be Discussed in Categories Indicated Re Results of Screening Meetings for June 1994. Partially Deleted ML20057A9941993-09-14014 September 1993 Forwards NRC Proposed Transcript Corrections ML20056E5141993-08-12012 August 1993 Submits SALP Schedule for FY94 Per Mgt Directive 8.6 ML20127P4161993-01-19019 January 1993 Provides Summary of 930113 Operators Reactors Events Briefing.List of Attendees & Viewgraphs of Elements Discussed Encl ML20126F0201992-12-16016 December 1992 Discusses Discrepancies in Svcs Rendered for 3rd & 4th Quarters of 1991 & 1st,2nd & 3rd Quarters of 1992.TLD Program for Humbolt Bay Site Did Not Strictly Follow Ltr of Contract ML20127D4321992-09-0101 September 1992 Forwards 920818 Petition Submitted by N Culver on Behalf of San Luis Obispo Mothers for Peace,Filed in Response to NRC Notice of Issuance of Amend to Licenses for Plant,Extending Expiration Date from 080423 to 210922 ML20058P5021990-08-15015 August 1990 Forwards Three Analyses of Shutdown Events Evaluated by Accident Sequence Precursor Program ML20247M1881989-05-26026 May 1989 Notification of 890613,14 & 15 Meetings W/Util in San Francisco,Ca to Discuss PRA Topics Re NRC Questions on long-term Seismic Program ML20154E5121988-05-0909 May 1988 Requests That Zip Code for Judge Es Bowers Address Be Changed as Stated,Per Iw Smith Request.Related Correspondence ML20153E3031988-05-0303 May 1988 Forwards NRR Input to Status of Regulatory Activities at Plants,In Response to J Curtis Request for Info ML20153E3381988-04-21021 April 1988 Requests Input on Status of Regulatory Activities for Listed Plants,Status of EPRI Research for RES & Status of California Low Level Waste Program.Response Requested by 880505 ML20151D4271988-03-24024 March 1988 Submits Summary of Actions Discussed at ACRS 335th Meeting on 880310-12 in Washington,Dc,Including ACRS Repts/ Recommendations,Other Actions,Agreements,Assignments & Requests & Future Agenda ML20148G2281988-03-22022 March 1988 Advises That Time for Commission to Review Naslap Decision (ALAB-880) Expired.Commission Declined Review.Decision Became Final Agency Action on 880318.Served on 880323 ML20148D9491988-03-15015 March 1988 Discusses 880315 Operating Reactors Events Meeting 88-11. List of Attendees,Events Discussed & Tabulation of long-term Followup Assignments Detailed in Encls ML20236R7551987-11-20020 November 1987 Informs That Time Provided by NRC Regulations within Which Commission May Act to Review ALAB-877 Expired.Commission Declined Review.Decision Became Final Agency Action on 871117.Served on 871120 ML20236N8421987-11-12012 November 1987 Documents Reconstitution of Aslab for OL Amend Proceeding to Consist of as Rosenthal,Cn Kohl & Ha Wilber.Related Correspondence ML20236H2821987-10-30030 October 1987 Informs That Time Provided within Which Commission May Act to Review ALAB-873 Expired.Commission Declined Review. Decision Became Final Agency Action on 871028.Served on 871102 ML20235H6291987-09-25025 September 1987 Informs of Reconstitution of Aslab Consisting of Author as Chairman & TS Moore & Ha Wilber as Members ML20234F3831987-09-14014 September 1987 Documents Results of Exam of Bolted Connections of Raceway Supports at Plant.Exam Conducted Due to Allegations Received Re Adequacy of Anchor Bolts Securing Raceway Supports to Concrete ML20238A6481987-08-17017 August 1987 Forwards Page 7 of 870813 Pleading Entitled, Response of NRC Staff to Licensing Board Order of 870732 (Directing Parties to File Comments on Applicability of Appeal Boards Decision...), Which Was Inadvertently Omitted ML20195F8261987-08-0707 August 1987 Forwards Listed Data Tables for Use in Preparing Performance Analyses for Plant,Per DF Kirsch 870728 Memo.Salp Performance Analyses Should Be Submitted to J Burdoin by 870825 ML20235M1861987-07-13013 July 1987 Forwards Complete Footnote 5 as Appearing on Pages 8 & 9 of 870710 Answer to Sierra Club Motion to Admit Contention Re Generic Issue 82 & to Direct Preparation of Eis. Due to Quirk in Programming,Not All of Footnote 5 Printed ML20235G5441987-07-0808 July 1987 Forwards NRC Staff Proposed Findings of Fact & Conclusions of Law in Form of Initial Decision Re Licensee Amend Request to Expand Spent Fuel Pools at Plant ML20234F5101987-07-0606 July 1987 Informs of Large Number of Limited Appearance Statements Filed in Proceeding.Documents Will Not Be Served,Per Board Chairman Discussions.Documents Will Be Made Part of Official Record & Will Be Available for Insp.Served on 870706 ML20216D0931987-06-22022 June 1987 Forwards Transcript Pages 65-68 of J Mcdermott Limited Appearance Statement on 870615 Re Defective Weld at Plant Approved by QC Inspector for Appropriate Action.Served on 870624 ML20214T2031987-06-0505 June 1987 Forwards NRC Staff Disk in Ascii Form,Containing Staff Testimony & Draft Proposed Findings of Fact & Conclusions of Law,Per ASLB 870522 Memorandum & Order.Requests Database Compiled by ASLB Be Provided on Encl Blank Disks ML20214W5681987-06-0505 June 1987 Forwards List of Exhibits Intended to Be Offered by Sierra Club in Upcoming Hearing in Proceeding Re Spent Fuel Pool. List Received Too Late for Inclusion in to ASLB ML20214T1581987-06-0404 June 1987 Forwards NRC Staff Testimony of Hg Ashar,Hm Fishman,G Degrassi,Wl Brooks & a Singn on Sierra Club Contentions I(A)3 & 4;I(B)2,8 & 9;II(A)1-9 & II(B)1-9 & Dp Cleary on Sierra Club Contention I(B)7,per ASLB 870128 & 0409 Orders ML20214T2251987-06-0303 June 1987 Confirms 870602 Telcon Informing ASLB of Staff Intention to Offer Listed Documents as Staff Exhibits in Upcoming Hearing on Spent Fuel Pool ML20195G2301987-06-0202 June 1987 Discusses Plans for Response to Lessons Learned from Plant 870410 Loss of RHR Event.Crgr Review of 50.54(f) Ltr Providing Addl Info Requested at Earliest Opportunity ML20149M6491987-05-29029 May 1987 Forwards Proposed 10CFR50.54(f) Ltr Currently Being Reviewed for Transmittal to CRGR on 870602.Comments,if Necessary, Requested by 870601 ML20214L5831987-05-21021 May 1987 Summarizes 870519 Operating Reactors Events Meeting 87-15 to Brief Senior Managers from Nrr,Res,Aeod & Regional Ofcs on Events Which Occurred Since 870512 Meeting.Events Discussed & Significant Elements of Events Encl ML20245B1911987-05-18018 May 1987 Presents Composite Set of NRC & Industry Recommended Remedial Actions Based on 1985 AEOD Case Study Rept C503 Re DHR Problems for PWR Operation.Table 1 Presenting Chronology of 37 events,cost-benefit Analysis & Related Info Encl IA-87-714, Presents Composite Set of NRC & Industry Recommended Remedial Actions Based on 1985 AEOD Case Study Rept C503 Re DHR Problems for PWR Operation.Table 1 Presenting Chronology of 37 events,cost-benefit Analysis & Related Info Encl1987-05-18018 May 1987 Presents Composite Set of NRC & Industry Recommended Remedial Actions Based on 1985 AEOD Case Study Rept C503 Re DHR Problems for PWR Operation.Table 1 Presenting Chronology of 37 events,cost-benefit Analysis & Related Info Encl ML20214A5501987-05-14014 May 1987 Partially Deleted Memo Re Recommendation for Diablo Canyon Board Notification Concerning 831019 Allegations ML20214A0311987-05-12012 May 1987 Notifies of 870514 Briefing on Licensing & Operational Status of Plants Assigned to Project Directorate V,Including Diablo Canyon,Palo Verde,Rancho Seco,San Onfore,Trojan & WPPSS 2 ML20215H9221987-05-0707 May 1987 Submits Results of Lll Exam of Facility Raceway Support Bolted Connections.Exams Conducted Due to Allegations Re Adequacy of Anchor Bolts & Feedback from Lll That Adequacy of Bolting Might Be Safety Issue 1999-08-27 Category:MEMORANDUMS-CORRESPONDENCE MONTHYEARML20211H4441999-08-27027 August 1999
[Table view]Notification of Significant Meeting with Util on 990916 & 17 in Arlington,Tx to Improve Utility & NRC Understanding of Industry & Regulatory Perspectives on Current Issues ML20196D7021999-06-25025 June 1999 Informs That Reactor Sys Branch Prepared Suppl 1 to GL 83-11 Re Licensee Qualification for Performing Safety Analyses, Which Was Issued on 990624.Matl Related to Subj GL Should Be Placed in PDR & Made Available to Public DD-99-05, Forwards Monthly Rept on Status of 10CFR2.206 Petition as of 990331.During March,Director'S Decision (DD-99-06) on Browns Ferry & DD on Army Corps of Engineers Was Issued & (DD-99-05) on Diablo Canyon Became Final Agency Action1999-04-20020 April 1999 Forwards Monthly Rept on Status of 10CFR2.206 Petition as of 990331.During March,Director'S Decision (DD-99-06) on Browns Ferry & DD on Army Corps of Engineers Was Issued & (DD-99-05) on Diablo Canyon Became Final Agency Action ML20205J2811999-04-0606 April 1999 Notification of 990422 Meeting for Dockets 7200026 & 7200027 with PG&E in Rockville,Md to Dicuss PG&E Plans for Dry Cask Storage at Humboldt Bay & Diablo Canyon IR 05000275/19993011999-03-25025 March 1999 Forwards NRC Operator Licensing Exam Repts 50-275/99-301 & 50-323/99-301 for Tests Administered on 990125-28 ML20205B2301999-03-25025 March 1999 Forwards NRC Approved Operator Licensing Exam (Facility Outline & Initial Exam Submittal & as-given Operating Exam) for Tests Administered on 990125-28 ML20207M3401999-03-0202 March 1999 Notification of Canceled Meeting Scheduled for 990309 Re 7200026 & 7200027 for PG&E Plans for Dry Cask Storage at Humboldt Bay & Diablo Canyon ML20155H9051998-11-0303 November 1998 Notification of 981117 Meeting for Dockets 7200026 & 7200027 with Util in Rockville,Md to Discuss PG&E Plans for Dry Cask Storage ML20248K4451998-06-0202 June 1998 Notification of 980617 Meeting W/Util in Rockville,Md to Discuss PG&E Plans for Dry Cask Storage.Meeting Agenda Encl ML20247G9081998-04-0707 April 1998 Discusses Experts Needed for Plant Life Extension Cases,Per 980403 Discussion ML20136C1031997-03-0606 March 1997 Forwards Correspondence Transmitted Via Internet to J Zwolinski from P Blanch During 970102-31.Requests Correspondence Be Placed in PDR ML20134P2231997-02-20020 February 1997 Discusses Ti 2515/122 Evaluation or Rosemount Pressure Transmitter Performance & Licensee Enhanced Surveillance Programs multi-plant Action B-122 NUREG-1299, Forwards Continuation of Curtiss Papers to Be Filed Under Commission Correspondence in Pdr.Advanced Copy Sent to Pdr. List of Documents Included in Four Boxes Encl1994-06-29029 June 1994 Forwards Continuation of Curtiss Papers to Be Filed Under Commission Correspondence in Pdr.Advanced Copy Sent to Pdr. List of Documents Included in Four Boxes Encl ML20134B5061994-04-13013 April 1994 Submits Plants Which Will Be Discussed in Categories Indicated Re Results of Screening Meetings for June 1994. Partially Deleted ML20057A9941993-09-14014 September 1993 Forwards NRC Proposed Transcript Corrections ML20056E5141993-08-12012 August 1993 Submits SALP Schedule for FY94 Per Mgt Directive 8.6 ML20127P4161993-01-19019 January 1993 Provides Summary of 930113 Operators Reactors Events Briefing.List of Attendees & Viewgraphs of Elements Discussed Encl ML20126F0201992-12-16016 December 1992 Discusses Discrepancies in Svcs Rendered for 3rd & 4th Quarters of 1991 & 1st,2nd & 3rd Quarters of 1992.TLD Program for Humbolt Bay Site Did Not Strictly Follow Ltr of Contract ML20127D4321992-09-0101 September 1992 Forwards 920818 Petition Submitted by N Culver on Behalf of San Luis Obispo Mothers for Peace,Filed in Response to NRC Notice of Issuance of Amend to Licenses for Plant,Extending Expiration Date from 080423 to 210922 ML20058P5021990-08-15015 August 1990 Forwards Three Analyses of Shutdown Events Evaluated by Accident Sequence Precursor Program ML20247M1881989-05-26026 May 1989 Notification of 890613,14 & 15 Meetings W/Util in San Francisco,Ca to Discuss PRA Topics Re NRC Questions on long-term Seismic Program NUREG-1353, Board Notification 89-003:forwards Listed Documents Re Spent Fuel Pool Accidents for Resolution of Generic Issue 82, Beyond DBA in Spent Fuel Pools, Including NUREG-13531989-05-0202 May 1989 Board Notification 89-003:forwards Listed Documents Re Spent Fuel Pool Accidents for Resolution of Generic Issue 82, Beyond DBA in Spent Fuel Pools, Including NUREG-1353 NUREG/CR-5176, Updated Board Notification 89-01 Re Lll NUREG/CR-5176, Seismic Failure & Cask Drop Analyses of Spent Fuel Pools at Two Representative Nuclear Power Plants1989-02-14014 February 1989 Updated Board Notification 89-01 Re Lll NUREG/CR-5176, Seismic Failure & Cask Drop Analyses of Spent Fuel Pools at Two Representative Nuclear Power Plants ML20154E5121988-05-0909 May 1988 Requests That Zip Code for Judge Es Bowers Address Be Changed as Stated,Per Iw Smith Request.Related Correspondence ML20153E3031988-05-0303 May 1988 Forwards NRR Input to Status of Regulatory Activities at Plants,In Response to J Curtis Request for Info ML20153E3381988-04-21021 April 1988 Requests Input on Status of Regulatory Activities for Listed Plants,Status of EPRI Research for RES & Status of California Low Level Waste Program.Response Requested by 880505 ML20151D4271988-03-24024 March 1988 Submits Summary of Actions Discussed at ACRS 335th Meeting on 880310-12 in Washington,Dc,Including ACRS Repts/ Recommendations,Other Actions,Agreements,Assignments & Requests & Future Agenda ML20148G2281988-03-22022 March 1988 Advises That Time for Commission to Review Naslap Decision (ALAB-880) Expired.Commission Declined Review.Decision Became Final Agency Action on 880318.Served on 880323 ML20148D9491988-03-15015 March 1988 Discusses 880315 Operating Reactors Events Meeting 88-11. List of Attendees,Events Discussed & Tabulation of long-term Followup Assignments Detailed in Encls ML20236Y1501987-12-0707 December 1987 Staff Requirements Memo Re 871125 Affirmation/Discussion & Vote.Commission Approved Order Directing Aslab to Issue Decision by 880131 Re Installation of high-density Spent Fuel Racks & Order Vacating Stay for Low Power Operations ML20236R7551987-11-20020 November 1987 Informs That Time Provided by NRC Regulations within Which Commission May Act to Review ALAB-877 Expired.Commission Declined Review.Decision Became Final Agency Action on 871117.Served on 871120 ML20236N8421987-11-12012 November 1987 Documents Reconstitution of Aslab for OL Amend Proceeding to Consist of as Rosenthal,Cn Kohl & Ha Wilber.Related Correspondence ML20236H2821987-10-30030 October 1987 Informs That Time Provided within Which Commission May Act to Review ALAB-873 Expired.Commission Declined Review. Decision Became Final Agency Action on 871028.Served on 871102 ML20235H6291987-09-25025 September 1987 Informs of Reconstitution of Aslab Consisting of Author as Chairman & TS Moore & Ha Wilber as Members ML20234F3831987-09-14014 September 1987 Documents Results of Exam of Bolted Connections of Raceway Supports at Plant.Exam Conducted Due to Allegations Received Re Adequacy of Anchor Bolts Securing Raceway Supports to Concrete ML20238A6481987-08-17017 August 1987 Forwards Page 7 of 870813 Pleading Entitled, Response of NRC Staff to Licensing Board Order of 870732 (Directing Parties to File Comments on Applicability of Appeal Boards Decision...), Which Was Inadvertently Omitted ML20195F8261987-08-0707 August 1987 Forwards Listed Data Tables for Use in Preparing Performance Analyses for Plant,Per DF Kirsch 870728 Memo.Salp Performance Analyses Should Be Submitted to J Burdoin by 870825 ML20235M1861987-07-13013 July 1987 Forwards Complete Footnote 5 as Appearing on Pages 8 & 9 of 870710 Answer to Sierra Club Motion to Admit Contention Re Generic Issue 82 & to Direct Preparation of Eis. Due to Quirk in Programming,Not All of Footnote 5 Printed ML20235G5441987-07-0808 July 1987 Forwards NRC Staff Proposed Findings of Fact & Conclusions of Law in Form of Initial Decision Re Licensee Amend Request to Expand Spent Fuel Pools at Plant ML20234F5101987-07-0606 July 1987 Informs of Large Number of Limited Appearance Statements Filed in Proceeding.Documents Will Not Be Served,Per Board Chairman Discussions.Documents Will Be Made Part of Official Record & Will Be Available for Insp.Served on 870706 ML20216D0931987-06-22022 June 1987 Forwards Transcript Pages 65-68 of J Mcdermott Limited Appearance Statement on 870615 Re Defective Weld at Plant Approved by QC Inspector for Appropriate Action.Served on 870624 ML20214W5681987-06-0505 June 1987 Forwards List of Exhibits Intended to Be Offered by Sierra Club in Upcoming Hearing in Proceeding Re Spent Fuel Pool. List Received Too Late for Inclusion in to ASLB ML20214T2031987-06-0505 June 1987 Forwards NRC Staff Disk in Ascii Form,Containing Staff Testimony & Draft Proposed Findings of Fact & Conclusions of Law,Per ASLB 870522 Memorandum & Order.Requests Database Compiled by ASLB Be Provided on Encl Blank Disks ML20214T1581987-06-0404 June 1987 Forwards NRC Staff Testimony of Hg Ashar,Hm Fishman,G Degrassi,Wl Brooks & a Singn on Sierra Club Contentions I(A)3 & 4;I(B)2,8 & 9;II(A)1-9 & II(B)1-9 & Dp Cleary on Sierra Club Contention I(B)7,per ASLB 870128 & 0409 Orders ML20214T2251987-06-0303 June 1987 Confirms 870602 Telcon Informing ASLB of Staff Intention to Offer Listed Documents as Staff Exhibits in Upcoming Hearing on Spent Fuel Pool ML20195G2301987-06-0202 June 1987 Discusses Plans for Response to Lessons Learned from Plant 870410 Loss of RHR Event.Crgr Review of 50.54(f) Ltr Providing Addl Info Requested at Earliest Opportunity ML20149M6491987-05-29029 May 1987 Forwards Proposed 10CFR50.54(f) Ltr Currently Being Reviewed for Transmittal to CRGR on 870602.Comments,if Necessary, Requested by 870601 ML20214L5831987-05-21021 May 1987 Summarizes 870519 Operating Reactors Events Meeting 87-15 to Brief Senior Managers from Nrr,Res,Aeod & Regional Ofcs on Events Which Occurred Since 870512 Meeting.Events Discussed & Significant Elements of Events Encl ML20245B1911987-05-18018 May 1987 Presents Composite Set of NRC & Industry Recommended Remedial Actions Based on 1985 AEOD Case Study Rept C503 Re DHR Problems for PWR Operation.Table 1 Presenting Chronology of 37 events,cost-benefit Analysis & Related Info Encl IA-87-714, Presents Composite Set of NRC & Industry Recommended Remedial Actions Based on 1985 AEOD Case Study Rept C503 Re DHR Problems for PWR Operation.Table 1 Presenting Chronology of 37 events,cost-benefit Analysis & Related Info Encl1987-05-18018 May 1987 Presents Composite Set of NRC & Industry Recommended Remedial Actions Based on 1985 AEOD Case Study Rept C503 Re DHR Problems for PWR Operation.Table 1 Presenting Chronology of 37 events,cost-benefit Analysis & Related Info Encl 1999-08-27 |
Text
_ _ ___ _ __________-__- ____ ____-__ --_ - - - - - - --
Docket Nos.: 50-275 APR 2 5 N Docket File 50-275/323 l and 50-323 PRC System (
LB#3 Reading l JLee HSchierling MEMORANDUM FOR: H. R. Denton LChandler, OELD E. G. Case GWKnighton G. Edison D. Eisenhut R. Purple H. Thompson R. Vollmer R. Mattson - -'
l T. Spets
! J. Taylor I
G. Holohan T. Novak G. Lainas F. Miraglia l THRU: George W. Knighton, Chief Licensing Branch No. 3 Division of Licensing FROM: Hans Schierling, Project Manager <
Licensing Branch No. 3 Division of Licensing
SUBJECT:
DAILY HIGHLIGHT DIABLO CANYON An earthquake of magnitude 6 on the Richter scale occurred on Tuesday, April 24, 1984 at 1:15 pm PST on the Calaveres Fault in central California with the epicenter approximately 12 miles east of San Jose. At the Diablo Canyon site (approximately 150 miles south) the event did not trip the Kinemetric seismic instrument which has a trip level of 0.01 g. The event was registered on a second, very sensitive instrumentation system. The system has 22 sensors throughout the plant. Prior to having the tape output analyzed offsite the plant staff evaluated 4 output tapes, the highest acceleration of which was 0.00056g.
444 0425 AnnCK 05000275 i
g
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