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| =Text= | | =Text= |
| {{#Wiki_filter:ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:9007180303 DOC.DATE:90/07/11NOTARIZED: | | {{#Wiki_filter:ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR: 9007180303 DOC.DATE: 90/07/11 NOTARIZED: |
| NOFACIL:50-244 RobertEmmetGinnaNuclearPlant,Unit1,Rochester AUTH.NAMEAUTHORAFFILIATION MECREDY,R.C.
| | NO FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C. |
| Rochester Gas6ElectricCorp.RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R. | | Rochester Gas 6 Electric Corp.RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R. |
| ProjectDirectorate I-3
| | Project Directorate I-3 |
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| ==SUBJECT:== | | ==SUBJECT:== |
| Respondsto900709requestforaddiinforecontainment integrity insp.DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR 2ENCL0SIZE:TITLE:ORSubmittal:
| | Responds to 900709 request for addi info re containment integrity insp.DISTRIBUTION CODE: AOOID COPIES RECEIVED:LTR 2 ENCL 0 SIZE: TITLE: OR Submittal: |
| GeneralDistribution DOCKETG05000244tDNOTES:License Expdateinaccordance with10CFR2,2.109(9/19/72).
| | General Distribution DOCKET G 05000244 t D NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72). |
| 05000244/RECIPIENT IDCODE/NAME PD1-3LAJOHNSON,A INTERNAL: | | 05000244/RECIPIENT ID CODE/NAME PD1-3 LA JOHNSON,A INTERNAL: NRR/DET/ECMB 9H NRR/DST 8E2 NRR/DST/SICB 7E NUDOCS-ABSTRACT OGC/HDS2 RES/DSIR/EIB EXTERNAL: LPDR NSIC COPIES LTTR ENCL RECIPIENT ID CODE/NAME PD1-3 PD NRR/DOEA/OTSB11 NRR/DST/SELB 8D NRR/DST/SRXB 8E-8@M EG FILE 01 NRC PDR COPIES LTTR ENCL D D D NOTE TO ALL"RIDS" RECIPIENTS: |
| NRR/DET/ECMB 9HNRR/DST8E2NRR/DST/SICB 7ENUDOCS-ABSTRACT OGC/HDS2RES/DSIR/EIB EXTERNAL: | | D D PLEASE HELP US TO REDUCE WASTE!CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT.20079)TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!TOTAL NUMBER OF COPIES REQUIRED: LTTR 21 ENCL e ill/////I///I//I///// |
| LPDRNSICCOPIESLTTRENCLRECIPIENT IDCODE/NAME PD1-3PDNRR/DOEA/OTSB11 NRR/DST/SELB 8DNRR/DST/SRXB 8E-8@MEGFILE01NRCPDRCOPIESLTTRENCLDDDNOTETOALL"RIDS"RECIPIENTS:
| |
| DDPLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMP1-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:
| |
| LTTR21ENCL eill/////I///I//I/////
| |
| /I////1/I//////// | | /I////1/I//////// |
| ROCHESTER GASwf~ai~owiieI'iRORYANDELECTRICCORPORATION o89EASTAVENUE,ROCHESTER, N.K14649.0001 | | ROCHESTER GAS wf~ai~owiie I'i RORY AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER, N.K 14649.0001-July 11, 1990 TCtf PHONE ARKA cooK vie.546-2700 U.S.Nuclear Regulatory Commission Document Control Desk Attn: Allen R.Johnson Project Directorate I-3 Washington, D.C.20555 |
| -July11,1990TCtfPHONEARKAcooKvie.546-2700U.S.NuclearRegulatory Commission DocumentControlDeskAttn:AllenR.JohnsonProjectDirectorate I-3Washington, D.C.20555 | |
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| ==Subject:== | | ==Subject:== |
| Containment Integrity Inspection R.E.GinnaNuclearPowerPlantDocketNo.50-244 | | Containment Integrity Inspection R.E.Ginna Nuclear Power Plant Docket No.50-244 |
|
| |
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| ==Reference:== | | ==Reference:== |
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| |
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| July9,1990NRCRequestforAdditional Information, (TACNo.67427),i
| | July 9, 1990 NRC Request for Additional Information, (TAC No.67427),i |
|
| |
|
| ==DearMr.Johnson:== | | ==Dear Mr.Johnson:== |
| InresponsetotheNRC'sJuly9,1990requestforadditional information, RG&Eisproviding thefollowing responses inanexpeditious manner.RG&Edoesnotbelievethatgroundwater isenteringtheannularaccessareaaroundcontainment frombeneathcontainment, assuspected byNRCinspectors, butfrombehindthesheetpiling thatformtheretaining wallintheeasternly quadrantoftheintermediate buildingsub-basement.
| | In response to the NRC's July 9, 1990 request for additional information, RG&E is providing the following responses in an expeditious manner.RG&E does not believe that groundwater is entering the annular access area around containment from beneath containment, as suspected by NRC inspectors, but from behind the sheetpiling that form the retaining wall in the easternly quadrant of the intermediate building sub-basement. |
| Becausethisareaisclassified asaconfinedspace,andiscontaminated, theeffortnecessary toconfirmthisinformation isdifficult.
| | Because this area is classified as a confined space, and is contaminated, the effort necessary to confirm this information is difficult. |
| Nonetheless, thismajoreffortisunderway. | | Nonetheless, this major effort is underway.Preliminary results are expected by July 16, with detailed results expected by July 20.RG&E also does not expect that any degradation of containment structural members is occurring at this time.We have met all necessary surveillance testing requirements needed to conform to the Ginna Technical Specifications, including many Integrated Leak Rate Tests (ILRT)and tendon surveillance tests (reviewed in SEP Topic III-7.A).Results from the 1989 ILRT were excellent and the just-completed tendon testing confirmed that all lift-off tests met acceptance criteria, and all inspected tendon wires were in"as-new" condition. |
| Preliminary resultsareexpectedbyJuly16,withdetailedresultsexpectedbyJuly20.RG&Ealsodoesnotexpectthatanydegradation ofcontainment structural membersisoccurring atthistime.Wehavemetallnecessary surveillance testingrequirements neededtoconformtotheGinnaTechnical Specifications, including manyIntegrated LeakRateTests(ILRT)andtendonsurveillance tests(reviewed inSEPTopicIII-7.A). | | RG&E will review the original structural design requirements of the containment and assess the impact of the recently determined groundwater level on the design.For structural details which are inaccessible due to location (high radiation area in the RHR room, or encased in rock or concrete)absolutely definitive conclusions may not be possible.However, 5'007180303 90'0711 ,PDR ADOCK 05000244 Q PDC our best engineering judgment will be used to provide reasonable |
| Resultsfromthe1989ILRTwereexcellent andthejust-completed tendontestingconfirmed thatalllift-offtestsmetacceptance
| |
| : criteria, andallinspected tendonwireswerein"as-new"condition.
| |
| RG&Ewillreviewtheoriginalstructural designrequirements ofthecontainment andassesstheimpactoftherecentlydetermined groundwater levelonthedesign.Forstructural detailswhichareinaccessible duetolocation(highradiation areaintheRHRroom,orencasedinrockorconcrete) absolutely definitive conclusions maynotbepossible. | |
| However,5'007180303 90'0711,PDRADOCK05000244QPDCourbestengineering judgmentwillbeusedtoprovidereasonable | |
| )04~g5~ | | )04~g5~ |
| 11J~'Iir assurance thattheproperstructural functions canbemet.Thisapproachisconsistent withother,typesofsurveillance tests(e.g.MOVATS,testinginresponsetoGenericLetter89-10)whereaduplication ofpost-accident functions cannotbeachieved, butgoodjudgmentisusedtoextrapolate theabilitytomeetsafetyfunctions basedoncurrentavailable testingmethodologies.
| | 11 J~'I i r assurance that the proper structural functions can be met.This approach is consistent with other, types of surveillance tests (e.g.MOVATS, testing in response to Generic Letter 89-10)where a duplication of post-accident functions cannot be achieved, but good judgment is used to extrapolate the ability to meet safety functions based on current available testing methodologies. |
| Anyreasonably available information, whetherNRCorindustrygenerated, willbeusedtohelpusperformsuchcorrelations.
| | Any reasonably available information, whether NRC or industry generated, will be used to help us perform such correlations. |
| BecauseoftheuniquenatureoftheGinnacontainment design,asdiscussed inourJuly,9telecon,RG&Eproposesthat.theNRCtechnical reviewers andRG&Epersonnel discussourfindingsandconclusions atamutuallyacceptable time,suchastheendoftheweekofJuly23,attheRG&Eoffices.Verytrulyyours,RobertC.MecredyDivisionManagerNuclearProduction GJW/112Attachment xc:Mr.AllenR.Johnson(MailStop14D1)ProjectDirectorate I-3Washington, D.C.'0555 U.S.NuclearRegulatory Commission RegionI475Allendale RoadKingofPrussia,PA19406GinnaSeniorResidentInspector}}
| | Because of the unique nature of the Ginna containment design, as discussed in our July ,9 telecon, RG&E proposes that.the NRC technical reviewers and RG&E personnel discuss our findings and conclusions at a mutually acceptable time, such as the end of the week of July 23, at the RG&E offices.Very truly yours, Robert C.Mecredy Division Manager Nuclear Production GJW/112 Attachment xc: Mr.Allen R.Johnson (Mail Stop 14D1)Project Directorate I-3 Washington, D.C.'0555 U.S.Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 Ginna Senior Resident Inspector}} |
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Category:CORRESPONDENCE-LETTERS
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IR 05000244/19990051999-09-24024 September 1999
Forwards More Detailed Response Re Main Steam Check Valve Performance Questions Arising from NRC Insp Rept 50-244/99-05 Following Completion of Independent Assessment Being Performed by Duke Engineering & Svcs
ML17265A7571999-09-24024 September 1999
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IR 05000244/19992011999-09-24024 September 1999
Forwards Insp Rept 50-244/99-201 (Operational Safeguards Response Evaluation) on 990621-24.No Violations Noted. Primary Purpose of Osre to Assess Licensee Ability to Respond to External Threat.Insp Rept Withheld
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1999-09-30
[Table view]
Category:INCOMING CORRESPONDENCE
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ML17265A5671999-03-0101 March 1999
Forwards Application for Amend to License DPR-18,to Revise TSs Battery Cell Parameters Limit for Specific Gravity (SR 3.8.6.3 & SR 3.8.6.6).Supporting Tss,Encl
ML17265A5551999-02-25025 February 1999
Informs That Util Is in Process of Revising fitness-for-duty Program,Developed in Accordance with 10CFR26.Util Will Continue to Use Dept of Health & Human Svcs Certified Test Facility for Majority of Tests During Yr
ML17265A5561999-02-22022 February 1999
Forwards FFD Performance Data Rept for Six Months Ending 981231,per 10CFR26.71(d)
ML17265A5451999-02-12012 February 1999
Forwards Simulator Four Year Certification Rept,Per 10CFR55.45(b)(5)(ii)
ML17309A6491999-02-12012 February 1999
Forwards Ginna Station EOPs
ML17265A5431999-02-0909 February 1999
Supplements 980806 Relief Request with Attached Table.Util Third 10-Yr ISI of Reactor Vessel Being Performed During 1999 Refueling Outage,Beginning on 990301
ML17265A5361999-02-0202 February 1999
Forwards Response to NRC 981203 RAI Re Resolution of Unresolved Safety Issue USI A-46.Util Does Not Agree with NRCs Interpretation.Detailed Bases,Encl
ML17311A0691999-01-25025 January 1999
Forwards Revs to Ginna Station Emergency Plan Implementing Procedures (Epips).Previous Rev Had Incorrect Effective Date
ML17311A0671999-01-14014 January 1999
Forwards Revised Emergency Operating Procedures for Re Ginna NPP
ML17265A5131999-01-12012 January 1999
Forwards Revised Cover Page for Ginna Station Technical Requirements Manual (Trm), Rev 7,correcting Error in Effective Date
ML17265A5111999-01-11011 January 1999
Requests Relief Per 10CFR50.55a(a)(3)(ii) from Certain Requirements of Section XI of ASME Bp&V Code for ISI Program.Relief Requests 37,38 & 39 Encl
ML17265A5101999-01-11011 January 1999
Requests Relief Per to 10CFR50.55a(a)(3)(ii) from Certain Requirements of Section XI of ASME B&PV Code for ISI Program.Relief Request 40 Encl
1999-09-30
[Table view]
Category:UTILITY TO NRC
MONTHYEARML20059L4481990-09-18018 September 1990
Forwards Responses to Rer 900709-13 Team Visit Findings, Per .Responses Withheld (Ref 10CFR73.21)
ML17309A4491990-09-13013 September 1990
Forwards Slides Presented by Facility & Westinghouse to NRC in 900724 Meeting.Encl Withheld
ML17262A1331990-09-11011 September 1990
Responds to Violations & Several Unresolved Items Noted in SSFI Rept 50-244/89-81.Update of Appropriate Unresolved Items Encl.Specific Actions Re All NRC Unresolved Items Being Tracked to Completion
ML17261B1511990-08-29029 August 1990
Forwards Semiannual Radioactive Effluent Release Rept Jan- June 1990 & Rev 3 to Process Control Program for Ginna Station, Per Tech Specs 6.9.1.4 & 6.16,respectively
ML17261B1481990-08-28028 August 1990
Lists Understanding of Issues Util Planning to Address Re Containment Integrity,Per 900718 Telcon.Any Concerns or Action Items Different from Listed Submittal Should Be Provided to Util Prior to NRC 900905 & 06 Visit to Plant
IR 05000244/19880261990-08-20020 August 1990
Submits Update on Util Plans to Provide Appropriate Ventilation to Intermediate Bldg Clean Side,Per Violation Noted in Insp Rept 50-244/88-26.Extensive Program to Manually Close All External Openings Implemented
ML17261B1501990-08-20020 August 1990
Submits Update on Util Plans to Provide Appropriate Ventilation to Intermediate Bldg Clean Side,Per Violation Noted in Insp Rept 50-244/88-26.Extensive Program to Manually Close All External Openings Implemented
ML17261B1371990-08-17017 August 1990
Forwards Rev 0 to, Inservice Insp Rept for Third Interval (1990-1999),First Period,First Outage (1990) at Re Ginna Nuclear Power Plant.
ML17309A4481990-08-16016 August 1990
Responds to NRC 900717 Ltr Re Violations Noted in Insp Rept 50-244/90-80.Corrective Actions:Westinghouse Drawing E-2508 Approved & Issued to Central Records
ML17261B1351990-08-15015 August 1990
Provides Info & Assessment on Integrity of Connection of Containment Bldg to Foundation,Per 900808 Telcon.Util Believes That Existing Condition Not Safety Concern & No Reason Exists to Suspect Joint Will Not Perform Function
ML17261B1361990-08-14014 August 1990
Responds to Commitment Tracking Concerns Noted in Insp Rept 50-244/90-09 & Planned Corrective Actions.Util Confirms Commitments Dates for Implementation of Effective Shelf Life Program & Comprehensive Preventive Maint Program for Parts
ML17261B1331990-08-13013 August 1990
Recommits to Performing Enhanced primary-to-secondary Leak Rate Monitoring,Per NRC Bulletin 88-002
ML17261B1261990-07-30030 July 1990
Clarifies Commitment Made in 900316 RO Re Restoring Inoperable Fire Damper I-411-21-P.Util Plans to Design Removable Track Which Will Allow Charcoal Drawer to Be Manipulated.Definitive Schedule Will Be Provided in 60 Days
ML20055H9291990-07-23023 July 1990
Forwards Revised Page 6:4 of Plant Security Plan.Page Withheld Per 10CFR73.21
ML17261B1091990-07-20020 July 1990
Advises That Structural Evaluations of Containment Sys Being Performed in Response to Containment Integrity Insp
ML17309A4471990-07-17017 July 1990
Forwards Decommissioning Rept, for Plant,Per 10CFR50.33(k) & 50.75(b)
ML17261B0881990-07-13013 July 1990
Provides Update to Util 860616 Ltr Re Implementation of NUREG-0737,Item 6.2,Suppl 1, Emergency Response Capability.
ML17261B0921990-07-11011 July 1990
Responds to 900709 Request for Addl Info Re Containment Integrity Insp.Util Will Provide Preliminary Results by 900716 Re Where Groundwater Entering Annular Access Area. Meeting Proposed for Wk of 900723
ML20044B0481990-07-10010 July 1990
Discusses Review of Station Blackout Documentation,Per 10CFR50.63.Licensee Will Complete Enhancements to Station Blackout Documentation Identified in Attachment 1 as Indicated & Other Items Will Be Completed within 2 Yrs
ML17309A4461990-07-0909 July 1990
Responds to Generic Ltr 90-04 Re Status of Licensee Implementation of Generic Safety Issues Resolved W/ Imposition of Requirements or Corrective Actions
ML17261B0931990-07-0909 July 1990
Responds to Generic Ltr 88-14, Instrument Air Supply Sys Problems Affecting Safety-Related Equipment. Util Completed All Actions Requested in Generic Ltr & Will Retain Documentation Verification for Min of 2 Yrs
ML17261B0901990-07-0909 July 1990
Advises That Licensee Will Install Containment Isolation Signal Going to Valve AOV 745 by End of 1992 Refueling Outage,Per Util 900608 Ltr Notifying of Condition Outside Design Basis of Plant Under 10CFR50.72 Criterion
ML17250B2151990-06-29029 June 1990
Forwards Application for Amend to License DPR-18, Reformatting Auxiliary Electrical Sys Tech Specs & Action Statements for Offsite & Onsite Power Sources Available for Plant Auxiliaries
ML17261B0851990-06-28028 June 1990
Forwards LER 89-016-02 Re 891117 Failure of Safety Injection Block/Unblock Switch Which Could Render Both Trains of Safety Injection Sys Inoperable.Also Reported Per Part 21
ML17250B1991990-06-0808 June 1990
Responds to NRC 900509 Ltr Re Violations Noted in Insp Rept 50-244/89-81.Corrective Actions:Improved Battery Load Profile Developed Incorporating Calculational Improvements Contained in Current Industry Std IEEE 485-1983
ML17250B1951990-06-0505 June 1990
Responds to Generic Ltr 89-08, Erosion/Corrosion Induced Pipe Wall Thinning. Util Developed Erosion/Corrosion Program for Single & Two Phase Sys Consistent W/Requirements of NUREG-1344 & NUMARC 870611 Rept
ML17250B1851990-06-0101 June 1990
Forwards Application for Amend to License DPR-18,providing Guidance for Action Statements Associated W/Power Distribution Limit Specs
ML17261B0691990-06-0101 June 1990
Discusses Testing Frequency for Insp of Incore Neutron Monitoring Sys Thimble Tubes,Per NRC Bulletin 88-009.Thimble Tube Indicating Greatest Wear Recently Repositioned in Effort to Minimize Future Wear
ML17250B1811990-05-31031 May 1990
Forwards Addl Info Re Response to Notice of Violation from Insp Rept 50-244/90-04.Info Withheld (Ref 10CFR73.21)
ML17250B1801990-05-29029 May 1990
Responds to NRC Bulletin 90-001, Loss of Fill-Oil in Transmitters Mfg by Rosemount. Util Does Not Need to Develop Enhanced Surveillance Program to Monitor Currently Installed Transmitter Based Upon Limited Installed Quantity
ML17250B1841990-05-29029 May 1990
Responds to NRC Bulletin 89-002, Stress Corrosion Cracking of High Hardness Type 410 Stainless Steel (SS) Internal Pre-Load Bolting.... Valves Disassembled & 410 SS Studs Removed & Visually & Liquid Penetrant Examined
ML17261B0961990-05-29029 May 1990
Responds to NRC 900427 Ltr Re Violations Noted in Insp Rept 50-244/90-07.Corrective Actions:Worker Records Immediately Corrected Indicating That Worker Received No Significant Exposure for Time While Error Occurred
ML17250B1721990-05-18018 May 1990
Forwards Rev 1 to Summary Exam Rept for 1990 Steam Generator Eddy Current Insp. Rept Summarizes Observations & Corrective Actions Resulting from Insps Performed During 1990 Outage
ML20042G8931990-05-0808 May 1990
Forwards Revised Emergency Operating Procedures,Including Rev 3 to AP-RHR.2,Rev 1 to ES-0.3 & Rev 11 to ES-1.3
ML17261B0611990-04-26026 April 1990
Advises of Changes to 890201 Commitments Made Under Programmed Enhancement Response to Generic Ltr 88-17.Changes Will Not Reduce Capability to Operate Safely in Reduced Inventory Condition or Scope of Programmed Enhancements
ML17261B0591990-04-17017 April 1990
Advises That No Interlocks Required for RHR motor-operated Valves 701 & 720 Based on Present Arrangement.Listed Failures Would Have to Occur in Order for Potential Overpressurization of RHR Sys to Occur
ML17261B0461990-04-12012 April 1990
Responds to Issues Discussed During 900323 Telcon Re Inservice Testing Program Status & Relief Request.Current Test Methodology for Seat Leakage Acceptable Based on Application of Direct Measurement Sys
ML17262A1431990-04-12012 April 1990
Responds to NRC 900202 Ltr Re Weaknesses Noted in Insp Rept 50-244/89-80.Corrective Actions:Procedure ES-0.3 Modified to Provide Guidance for Rapid Cooldown & Depressurization W/ & W/O Reactor & Vessel Instrumentation Sys
ML17250B1451990-04-0606 April 1990
Discusses Impact of SER Issuance for Inservice Insp & Inservice Testing Programs & Advises That Timing Will Not Affect Util Implementation Plans for Programs,Except as Listed
ML17250B1441990-04-0505 April 1990
Responds to NRC 900309 Ltr Re Violations Noted in Insp Rept 50-244/90-02.Corrective Actions:Positive Indicator Will Be Installed for All Check Valves to Enhance Visible Positive Position Verification Ability & to Avoid Confusion
ML17261B0401990-03-30030 March 1990
Advises That Final Results of Station Blackout Documentation Review Will Be Submitted to NRC on or About 900501
ML17261B0321990-03-28028 March 1990
Forwards Annual Rept of ECCS Model Revs as Applicable to Facility,Per 10CFR50.46.Mods to Model for Small Break LOCA Do Not Affect Calculated Peak Clad Temp
ML17261B0331990-03-28028 March 1990
Forwards Info Re Reactor Vessel Issues,Per 900305 Telcon Concerning Change of License Expiration Date
ML17261B0231990-03-26026 March 1990
Responds to NRC 890222 Ltr Re Violations Noted in Insp Rept 50-244/89-17.Corrective Actions:Personnel Verified Safety Injection Block/Unblock Switch in Proper Position & Operator Procedure 0-1.1 Changed as Indicated
ML17261B0281990-03-23023 March 1990
Forwards Addl Info Re Proposed Tech Spec Amend Concerning Use of Reconstituted Fuel,Per 900315 Telcon.During Fuel Assembly Reconstitution,Failed Fuel Rods Will Be Placed W/ Filler Rods
ML17261B0221990-03-22022 March 1990
Provides Revised Test Schedule for motor-operated Valve Diagnostic Test Program,Per IE Bulletin 85-003.NRC Notification of Changes to Valve Operability Program Required by Generic Ltr 89-10,dtd 890828
ML17261B0411990-03-20020 March 1990
Forwards Summary of Onsite Property Damage Coverage Currently in Force at Plant,Per 10CFR50.54(w)(4)
ML17261B0151990-03-19019 March 1990
Responds to Generic Ltr 89-19, Safety Implication of Control Sys in LWR Nuclear Plants (USI A-47). Overfill Protection Provided Through Trip Bistables in Reactor Protection Racks Powered from 120-volt Instrument Buses
ML17261B0101990-03-15015 March 1990
Forwards Application for Amend to License DPR-18,allowing Use of Reconstituted Fuel Assemblies
ML20012D2831990-03-14014 March 1990
Responds to Issues Discussed During 900307 Telcon W/Util & Eg&G Re Inservice Testing Program Status & Relief Request. Valves 5960A & 5960B Will Be Disassembled to Verify Forward Flow.Relief Requests PR-8 & VR-25 Encl
1990-09-18
[Table view] |
Text
ACCELERATED DISTRIBUTION DEMONSTRATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR: 9007180303 DOC.DATE: 90/07/11 NOTARIZED:
NO FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C.
Rochester Gas 6 Electric Corp.RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R.
Project Directorate I-3
SUBJECT:
Responds to 900709 request for addi info re containment integrity insp.DISTRIBUTION CODE: AOOID COPIES RECEIVED:LTR 2 ENCL 0 SIZE: TITLE: OR Submittal:
General Distribution DOCKET G 05000244 t D NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72).
05000244/RECIPIENT ID CODE/NAME PD1-3 LA JOHNSON,A INTERNAL: NRR/DET/ECMB 9H NRR/DST 8E2 NRR/DST/SICB 7E NUDOCS-ABSTRACT OGC/HDS2 RES/DSIR/EIB EXTERNAL: LPDR NSIC COPIES LTTR ENCL RECIPIENT ID CODE/NAME PD1-3 PD NRR/DOEA/OTSB11 NRR/DST/SELB 8D NRR/DST/SRXB 8E-8@M EG FILE 01 NRC PDR COPIES LTTR ENCL D D D NOTE TO ALL"RIDS" RECIPIENTS:
D D PLEASE HELP US TO REDUCE WASTE!CONTACT THE DOCUMENT CONTROL DESK, ROOM P 1-37 (EXT.20079)TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!TOTAL NUMBER OF COPIES REQUIRED: LTTR 21 ENCL e ill/////I///I//I/////
/I////1/I////////
ROCHESTER GAS wf~ai~owiie I'i RORY AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER, N.K 14649.0001-July 11, 1990 TCtf PHONE ARKA cooK vie.546-2700 U.S.Nuclear Regulatory Commission Document Control Desk Attn: Allen R.Johnson Project Directorate I-3 Washington, D.C.20555
Subject:
Containment Integrity Inspection R.E.Ginna Nuclear Power Plant Docket No.50-244
Reference:
July 9, 1990 NRC Request for Additional Information, (TAC No.67427),i
Dear Mr.Johnson:
In response to the NRC's July 9, 1990 request for additional information, RG&E is providing the following responses in an expeditious manner.RG&E does not believe that groundwater is entering the annular access area around containment from beneath containment, as suspected by NRC inspectors, but from behind the sheetpiling that form the retaining wall in the easternly quadrant of the intermediate building sub-basement.
Because this area is classified as a confined space, and is contaminated, the effort necessary to confirm this information is difficult.
Nonetheless, this major effort is underway.Preliminary results are expected by July 16, with detailed results expected by July 20.RG&E also does not expect that any degradation of containment structural members is occurring at this time.We have met all necessary surveillance testing requirements needed to conform to the Ginna Technical Specifications, including many Integrated Leak Rate Tests (ILRT)and tendon surveillance tests (reviewed in SEP Topic III-7.A).Results from the 1989 ILRT were excellent and the just-completed tendon testing confirmed that all lift-off tests met acceptance criteria, and all inspected tendon wires were in"as-new" condition.
RG&E will review the original structural design requirements of the containment and assess the impact of the recently determined groundwater level on the design.For structural details which are inaccessible due to location (high radiation area in the RHR room, or encased in rock or concrete)absolutely definitive conclusions may not be possible.However, 5'007180303 90'0711 ,PDR ADOCK 05000244 Q PDC our best engineering judgment will be used to provide reasonable
)04~g5~
11 J~'I i r assurance that the proper structural functions can be met.This approach is consistent with other, types of surveillance tests (e.g.MOVATS, testing in response to Generic Letter 89-10)where a duplication of post-accident functions cannot be achieved, but good judgment is used to extrapolate the ability to meet safety functions based on current available testing methodologies.
Any reasonably available information, whether NRC or industry generated, will be used to help us perform such correlations.
Because of the unique nature of the Ginna containment design, as discussed in our July ,9 telecon, RG&E proposes that.the NRC technical reviewers and RG&E personnel discuss our findings and conclusions at a mutually acceptable time, such as the end of the week of July 23, at the RG&E offices.Very truly yours, Robert C.Mecredy Division Manager Nuclear Production GJW/112 Attachment xc: Mr.Allen R.Johnson (Mail Stop 14D1)Project Directorate I-3 Washington, D.C.'0555 U.S.Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 Ginna Senior Resident Inspector
