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Category:CORRESPONDENCE-LETTERS
MONTHYEARML20217H4661999-10-18018 October 1999
Forwards Changes to EPIPs IAW 10CFR50.54(q) & 10CFR50,App E, Section V.Details of Changes Encl
ML20216J8241999-09-30030 September 1999
Notifies of Removal of NRC Headquarters & Region III Offices from Controlled Copy Distribution of Certain CE Documents. Specific Documents,Associated Controlled Copy Numbers & NRC Location Affected Are Shown on Attachment to Ltr
ML20211G1221999-08-27027 August 1999
Forwards fitness-for-duty Program Performance Data for Each of Comm Ed Nuclear Power Stations & Corporate Support Employees within Scope of Rule for six-month Period Ending 990630,IAW 10CFR26.71(d)
ML20210N5651999-08-0606 August 1999
Forwards Rev 8 to Nuclear Generating Stations Emergency Plan, for Plants.With Summary of Changes
ML20210M9131999-08-0202 August 1999
Forwards Response to NRC AL 99-02, Operating Reactor Licensing Action Estimates, for Fys 2000 & 2001 for Comed
ML20210L1061999-08-0202 August 1999
Forwards Insp Rept 50-010/99-13 on 990702-27.No Violations Noted.Insp Examined Activities in Areas of Facility Management & Control & Radiological Safety
ML20210D2961999-07-20020 July 1999
Forwards Corrected Info for DNPS Unit 3 MOR for June 1999. Year-to Date Forced Outage Hours Should Have Read 70 Hours Instead of 0 on Page 8.Error Also Affected Cumulative Forced Outage Hours Which Should Have Been 24,761
ML20210B7071999-07-16016 July 1999
Responds to Requesting Review & Approval of Three Proposed Changes to Ceco QA TR,CE-1A Per 10CFR50.54(a)(3) & 10CFR50.4(b)(7)
ML20196J9131999-07-0101 July 1999
Submits Status of Nuclear Property Insurance Currently Maintained for Braidwood,Byron,Dresden,Lasalle County,Quad Cities & Zion Nuclear Power Stations,Per 10CFR50.54(w)(3)
ML20196J9061999-07-0101 July 1999
Provides Evidence That Util Maintains Guarantee of Payment of Deferred Premiums in Amount of $10 Million for Each of Thirteen Reactors,Per 10CFR140.21
ML20196K3231999-06-30030 June 1999
Informs That Effective 990703,NRC Project Management Responsibility for Dresden,Unit 1 Station Will Be Transferred to P Ray
ML20209B8241999-06-30030 June 1999
Forwards Five 3.5 Inch Computer Diskettes Containing Revised Annual Dose Repts for 1994 Through 1998 for Individuals Receiving Neutron Dose Not Previously Included in Reported Total Effective Dose Equivalent Values.Without Diskettes
ML20196D3491999-06-18018 June 1999
Forwards Insp Repts 50-237/99-08 & 50-249/99-08 on 990408-0521.Four Non-Cited Violations Noted.Maint on safety- Related Emergency CR Not Performed Well.Low Impact Issues Re Communications Present in Operations,Maint & Security
ML20212J0541999-06-17017 June 1999
Responds to Requesting That NRC Staff ...Allow BWR Plants Identified to Defer Weld Overlay Exams Until March 2001 or Until Completion of NRC Staff Review & Approval of Proposed Generic Rept,Whichever Comes First
ML20195E3451999-06-0707 June 1999
Forwards 3.5 Inch Computer Diskette Containing Revised File Format for Annual Dose Rept for 1998,per 990520 Telcon Request from Nrc.Each Station Data Is Preceded by Header Record,Which Provides Info Necessary to Identify Data
ML20195D6351999-06-0404 June 1999
Notifies NRC of Actions That Has Been Taken in Accordance with 10CFR26, Fitness for Duty Programs
ML20207G2571999-06-0303 June 1999
Informs That Effective 990328,NRC Ofc of NRR Underwent Reorganization.Within Framework of Reorganization,Division of Licensing Project Management Created
ML20195B2301999-05-19019 May 1999
Requests Approval of Proposed Changes to QA Topical Rept CE-1-A,rev 66a.Attachment a Describes Changes,Reason for Change & Basis for Concluding That Revised QAP Incorporating Proposed Changes Continues to Satisfy 10CFR50AppB
ML20206Q3111999-05-18018 May 1999
Final Response to FOIA Request for Documents.Forwards App a Records Being Released in Entirety
ML20206P2431999-05-13013 May 1999
Forwards Insp Rept 50-010/99-09 on 990325-0506.Two Violations of NRC Requirements Occurred & Being Treated as non-cited Violations Consistent with App C of Enforcement Policy
ML20206F5381999-04-30030 April 1999
Forwards Magnetic Tape Containing Annual Dose Repts for 1998 for Braidwood,Byron,Dresden,Lasalle County,Quad Cities & Zion Nuclear Power Stations,Per 10CFR20.2206(c).Without Magnetic Tape
ML20206B1501999-04-22022 April 1999
Forwards 1998 Occupational Radiation Exposure for Dresden Nuclear Power Station,Units 1,2 & 3. Rept Was Revised to Rept Only Individual Radiation Exposures Greater than 100 Mrem
ML20206B2471999-04-20020 April 1999
Informs That SE Kuczynski Has Been Transferred to Position No Longer Requiring SRO License.Cancel License SOP-31030-1, Effective 990412
ML20205K5521999-04-0202 April 1999
Forwards Partially Withheld Security Insp Repts 50-010/99-07,50-237/99-07 & 50-249/99-07 on 990308-12.Two non-cited Violations Identified Involving Failure of Security Personnel to Implement Required Measures
ML20205K5841999-03-31031 March 1999
Submits Rept on Status of Decommissioning Funding for Reactors Owned by Comm Ed.Attachment 1 Contains Amount of Decommissioning Funds Estimated to Be Required Pursuant to 10CFR50.75(b) & (C)
ML20196K7001999-03-31031 March 1999
Forwards Dresden Nuclear Power Station,Units 1,2 & 3 Radioactive Effluent Release Rept,Jan-Dec 1998. ODCM Was Submitted by Ltr in Accordance with Dresden TS 6.9.A.4 of Dresden Tech Specs Section 6.14.A.3
ML20205D7231999-03-26026 March 1999
Informs That Region III Emergency Preparedness Inspector Will Be Provided Copy of Comed Exercise Manual for 990526 Annual Exercise at DNPS
ML20205B4241999-03-23023 March 1999
Provides Results of drive-in Drill Conducted on 990208,as Well as Augmentation Phone Drills Conducted Since 981015,as Committed to in Util
ML20207L7141999-03-0808 March 1999
Discusses Transmitting Changes Identified as Rev 59 to Security Plan for Dresden Nuclear Power Station,Units 1,2 & 3.Staff Determined That No NRC Approval Required in Accordance with 10CFR50.54(p)
ML20207D6831999-03-0101 March 1999
Forwards fitness-for-duty Program Performance Data for Each Comed Nuclear Power Station & Corporate Support Employees for Six Month Period Ending 981231,per 10CFR26.71(d)
ML20207E0931999-02-26026 February 1999
Informs That Region III EP Inspectors Will Be Provided One Copy of Exercise Evaluation Objectives for 990526 Annual Exercise at Dresden Station as Enclosure to Ltr for Review. Proprietary Encl Withheld
ML20203F2541999-02-10010 February 1999
Informs That Beginning 990216,DE Hills Will Be Chief of Operations Branch Which Includes Operator Licensing Function
ML20203G3631999-02-10010 February 1999
Forwards Insp Rept 50-010/99-02 on 981218-990129.No Violations Noted.During Insp,Activities in Area of Facility Mgt & Control,Decommissioning Support Activities & Radiological Safety Were Examined
ML20203C7001999-02-0202 February 1999
Informs That Mhb Technical Associates No Longer Wishes to Receive Us Region III Docket Info Re Comed Nuclear Facilities.Please Remove Following Listing from Service List
ML20202G0621999-01-25025 January 1999
Forwards 1998 Revs to Commitments Rept Made in Docketed Correspondence for Dresden Nuclear Power Station
ML20199F3291999-01-14014 January 1999
Ack Receipt of Ltr Dtd 981230,transmitting Changes Identified as Rev 59 to Plant Security Plan,Submitted Under Provisions of 10CFR50.54(p)
ML20199E0201999-01-12012 January 1999
Forwards Change to Bases of Dnps,Unit 1 TS Section 3.10, Fuel Handling & Storage. Change Eliminates Reference to Initiation of Generating Station EP Action That Is Incorrect & Not Part of Reason for Min FSP Water Level TS
ML20199C8851999-01-11011 January 1999
Forwards Monthly Operating Repts for Dec 1998 for Dnps,Units 1,2 & 3,as Required by TS 6.9.A.5.Year-to-date Generator Hours for Unit 2 for Oct 1998 & Nov 1998 Corrected in Rept
ML20206P7411999-01-0707 January 1999
Informs of Delay in Implementation of Strategic Reform Initiative Action Steps.Util Mgt Now Preceeding to Implement Succession Planning Steps for Corporate Ofc & Expects Completion of Action Steps 2 & 3 by 990128
ML20198N7691998-12-30030 December 1998
Forwards Rev 59 to Security Plan for Dresden Nuclear Power Station,In Accordance with 10CFR50.4(b)(4).Rev Withheld
ML20198A2531998-12-10010 December 1998
Ack Receipt of Which Transmitted Changes Identified as Rev 57 to Plant Security Plan,Per 10CFR50.54(p).No NRC Approval Is Required
ML20198A2511998-12-10010 December 1998
Ack Receipt of ,Which Transmitted Changes Identified as Rev 58 to Plant Security Plan,Per 10CFR50.54(p).No NRC Approval Is Required
ML20196E2371998-11-27027 November 1998
Discusses Licensee ,Requesting That Agreement in Be Changed to Reflect Latest NRC Conditions Requiring Licensees to Notify NRC of Transfer of Assets to Affiliates Imposed in Connection with Approval of Transfer
ML20196B5871998-11-20020 November 1998
Requests That Svc List for All NRC Correspondence Re Any of Six Comed Nuclear Stations Be Modified Per Attached List.All Other Names Previously Listed Should Be Removed
ML20196A4121998-11-19019 November 1998
Forwards Safety Evaluation Accepting Proposed Changes to QA TR CE-1-A,Rev 66,by ,As Modified by Ltrs & 1027.Proposed QA Tr,Rev 66 Continues to Comply with Criteria of 10CFR50,App B
ML20195J4271998-11-13013 November 1998
Forwards Insp Repts 50-010/98-18,50-237/98-27 & 50-249/98-27 on 981013-16 & Notice of Violation.Mgt Activities Were Focused Toward Maintaining Effective Security Program
ML20195E6451998-11-12012 November 1998
Provides Results of drive-in Drill Conducted on 981007,as Well as Augmentation Phone Drill Conducted on 980917
ML20195F3461998-11-10010 November 1998
Forwards Rev 58 of DNPS Security Plan,Including Listed Changes,Iaw 10CFR50.4(b)(4).Encl Withheld Ref 10CFR73.21
ML20155D2701998-10-27027 October 1998
Forwards Changed Pages from 980423 Submittal Providing Addl Info Marked with Revision Bars & Revised Pages to QA Topical Rept Section 18,for Review
ML20154P9051998-10-20020 October 1998
Ack Receipt of 980821 Submittal,Per 10CFR50.54(a),requesting Review & Approval of Proposed Changes That Reduce Commitments in QA TR,CE-1-A.Util Should Refrain from Implementing Subj Changes Until Formal Notification Given
1999-09-30
[Table view]
Category:INCOMING CORRESPONDENCE
MONTHYEARML20217H4661999-10-18018 October 1999
Forwards Changes to EPIPs IAW 10CFR50.54(q) & 10CFR50,App E, Section V.Details of Changes Encl
ML20216J8241999-09-30030 September 1999
Notifies of Removal of NRC Headquarters & Region III Offices from Controlled Copy Distribution of Certain CE Documents. Specific Documents,Associated Controlled Copy Numbers & NRC Location Affected Are Shown on Attachment to Ltr
ML20211G1221999-08-27027 August 1999
Forwards fitness-for-duty Program Performance Data for Each of Comm Ed Nuclear Power Stations & Corporate Support Employees within Scope of Rule for six-month Period Ending 990630,IAW 10CFR26.71(d)
ML20210N5651999-08-0606 August 1999
Forwards Rev 8 to Nuclear Generating Stations Emergency Plan, for Plants.With Summary of Changes
ML20210M9131999-08-0202 August 1999
Forwards Response to NRC AL 99-02, Operating Reactor Licensing Action Estimates, for Fys 2000 & 2001 for Comed
ML20210D2961999-07-20020 July 1999
Forwards Corrected Info for DNPS Unit 3 MOR for June 1999. Year-to Date Forced Outage Hours Should Have Read 70 Hours Instead of 0 on Page 8.Error Also Affected Cumulative Forced Outage Hours Which Should Have Been 24,761
ML20196J9131999-07-0101 July 1999
Submits Status of Nuclear Property Insurance Currently Maintained for Braidwood,Byron,Dresden,Lasalle County,Quad Cities & Zion Nuclear Power Stations,Per 10CFR50.54(w)(3)
ML20196J9061999-07-0101 July 1999
Provides Evidence That Util Maintains Guarantee of Payment of Deferred Premiums in Amount of $10 Million for Each of Thirteen Reactors,Per 10CFR140.21
ML20209B8241999-06-30030 June 1999
Forwards Five 3.5 Inch Computer Diskettes Containing Revised Annual Dose Repts for 1994 Through 1998 for Individuals Receiving Neutron Dose Not Previously Included in Reported Total Effective Dose Equivalent Values.Without Diskettes
ML20195E3451999-06-0707 June 1999
Forwards 3.5 Inch Computer Diskette Containing Revised File Format for Annual Dose Rept for 1998,per 990520 Telcon Request from Nrc.Each Station Data Is Preceded by Header Record,Which Provides Info Necessary to Identify Data
ML20195D6351999-06-0404 June 1999
Notifies NRC of Actions That Has Been Taken in Accordance with 10CFR26, Fitness for Duty Programs
ML20195B2301999-05-19019 May 1999
Requests Approval of Proposed Changes to QA Topical Rept CE-1-A,rev 66a.Attachment a Describes Changes,Reason for Change & Basis for Concluding That Revised QAP Incorporating Proposed Changes Continues to Satisfy 10CFR50AppB
ML20206F5381999-04-30030 April 1999
Forwards Magnetic Tape Containing Annual Dose Repts for 1998 for Braidwood,Byron,Dresden,Lasalle County,Quad Cities & Zion Nuclear Power Stations,Per 10CFR20.2206(c).Without Magnetic Tape
ML20206B1501999-04-22022 April 1999
Forwards 1998 Occupational Radiation Exposure for Dresden Nuclear Power Station,Units 1,2 & 3. Rept Was Revised to Rept Only Individual Radiation Exposures Greater than 100 Mrem
ML20206B2471999-04-20020 April 1999
Informs That SE Kuczynski Has Been Transferred to Position No Longer Requiring SRO License.Cancel License SOP-31030-1, Effective 990412
ML20205K5841999-03-31031 March 1999
Submits Rept on Status of Decommissioning Funding for Reactors Owned by Comm Ed.Attachment 1 Contains Amount of Decommissioning Funds Estimated to Be Required Pursuant to 10CFR50.75(b) & (C)
ML20196K7001999-03-31031 March 1999
Forwards Dresden Nuclear Power Station,Units 1,2 & 3 Radioactive Effluent Release Rept,Jan-Dec 1998. ODCM Was Submitted by Ltr in Accordance with Dresden TS 6.9.A.4 of Dresden Tech Specs Section 6.14.A.3
ML20205D7231999-03-26026 March 1999
Informs That Region III Emergency Preparedness Inspector Will Be Provided Copy of Comed Exercise Manual for 990526 Annual Exercise at DNPS
ML20205B4241999-03-23023 March 1999
Provides Results of drive-in Drill Conducted on 990208,as Well as Augmentation Phone Drills Conducted Since 981015,as Committed to in Util
ML20207D6831999-03-0101 March 1999
Forwards fitness-for-duty Program Performance Data for Each Comed Nuclear Power Station & Corporate Support Employees for Six Month Period Ending 981231,per 10CFR26.71(d)
ML20207E0931999-02-26026 February 1999
Informs That Region III EP Inspectors Will Be Provided One Copy of Exercise Evaluation Objectives for 990526 Annual Exercise at Dresden Station as Enclosure to Ltr for Review. Proprietary Encl Withheld
ML20203C7001999-02-0202 February 1999
Informs That Mhb Technical Associates No Longer Wishes to Receive Us Region III Docket Info Re Comed Nuclear Facilities.Please Remove Following Listing from Service List
ML20202G0621999-01-25025 January 1999
Forwards 1998 Revs to Commitments Rept Made in Docketed Correspondence for Dresden Nuclear Power Station
ML20199E0201999-01-12012 January 1999
Forwards Change to Bases of Dnps,Unit 1 TS Section 3.10, Fuel Handling & Storage. Change Eliminates Reference to Initiation of Generating Station EP Action That Is Incorrect & Not Part of Reason for Min FSP Water Level TS
ML20199C8851999-01-11011 January 1999
Forwards Monthly Operating Repts for Dec 1998 for Dnps,Units 1,2 & 3,as Required by TS 6.9.A.5.Year-to-date Generator Hours for Unit 2 for Oct 1998 & Nov 1998 Corrected in Rept
ML20206P7411999-01-0707 January 1999
Informs of Delay in Implementation of Strategic Reform Initiative Action Steps.Util Mgt Now Preceeding to Implement Succession Planning Steps for Corporate Ofc & Expects Completion of Action Steps 2 & 3 by 990128
ML20198N7691998-12-30030 December 1998
Forwards Rev 59 to Security Plan for Dresden Nuclear Power Station,In Accordance with 10CFR50.4(b)(4).Rev Withheld
ML20196B5871998-11-20020 November 1998
Requests That Svc List for All NRC Correspondence Re Any of Six Comed Nuclear Stations Be Modified Per Attached List.All Other Names Previously Listed Should Be Removed
ML20195E6451998-11-12012 November 1998
Provides Results of drive-in Drill Conducted on 981007,as Well as Augmentation Phone Drill Conducted on 980917
ML20195F3461998-11-10010 November 1998
Forwards Rev 58 of DNPS Security Plan,Including Listed Changes,Iaw 10CFR50.4(b)(4).Encl Withheld Ref 10CFR73.21
ML20155D2701998-10-27027 October 1998
Forwards Changed Pages from 980423 Submittal Providing Addl Info Marked with Revision Bars & Revised Pages to QA Topical Rept Section 18,for Review
ML20154M4291998-10-15015 October 1998
Forwards 1998 Third Quarter 10CFR50.59 Rept of Completed Changes,Tests & Experiments.Completed SEs Compared to Previous Quarterly Repts as Docketed
ML20154J4951998-10-0707 October 1998
Forwards Revised Security Plans for CE Listed Nuclear Power Stations,Per 10CFR50.4(b)(4).Changes Do Not Decrease Effectiveness of Station Security Plans.Encl Withheld
ML20151Y5101998-09-11011 September 1998
Provides Results of drive-in-drill Conducted on 980804 & Augmentation Phone Drills Conducted Between 980601 & 0831
ML20151Y2931998-09-0909 September 1998
Notifies NRC of Results of Feasiblity Study of Seismically Qualified or Verified Path to Obtain Water from Ultimate Heat Sink & Deliver It to Shell of Isolation Condenser for Each Unit
ML20238F7571998-08-28028 August 1998
Forwards fitness-for-duty Program Performance Data for Each of Util Nuclear Power Stations for Six Month Period Ending 980630
ML20237D9771998-08-21021 August 1998
Forwards Proposed Changes to Quality Assurance Topical Rept (QATR) CE-1-A,rev 66,modifying Ref Submittal & Clarifying Certain Changes to QATR Proposed in Util .Page A-1, 6 of 6 of Incoming Submittal Not Included
ML20237A8611998-08-0707 August 1998
Requests Approval of Enclosed Qualified Unit 1 Supervisor Initial & Continuing Training Program, Which Ensures That Qualifications of Personnel Are Commensurate W/Tasks to Be Performed & Conditions Requiring Response
ML20237A8871998-08-0707 August 1998
Documents Completion of Util Action Items Discussed at 980529 Meeting W/Nrc.Updated Proposal to Consolidate Near Site Emergency Operations Facilities Into Single Central Emergency Operations Facility,Provided
ML20236W1311998-07-27027 July 1998
Forwards Response to NRC Re Violations Noted in Insp Repts 50-010/98-15,50-237/98-18 & 50-249/98-18, Respectively.Encl Withheld
ML20236T7241998-07-24024 July 1998
Forwards Revised Epips,Including CEPIP-2000 Series Table of Contents & Rev 7 to CEPIP-2121-01, Augmentation Caller Instructions
ML20236R2531998-07-16016 July 1998
Summarizes Results of drive-in Drill as Well as Preceeding call-in Drills Conducted Between Each drive-in Drill,As Committed to in 980326 Meeting Between Util & NRC
ML20236F8041998-06-29029 June 1998
Forwards Rev 0 to Defueled SAR Dresden Nuclear Power Station Unit 1 Commonwealth Edison Co, Per Requirements of 10CFR50.71(e)(4).Decommissioning Program Plan Is Being Reformatted & Revised Into Defueled SAR
SVP-98-170, Advises That AL Misak,License SOP-30832-1,is No Longer Required to Maintain Operator License1998-05-0101 May 1998
Advises That AL Misak,License SOP-30832-1,is No Longer Required to Maintain Operator License
ML20247B6521998-04-30030 April 1998
Forwards 1997 Repts for Braidwood,Byron,Dresden,Lasalle,Quad Cities & Zion Nuclear Power Stations.Repts Being Submitted Electronically on Magnetic Tape.W/O Encl
ML20217G8841998-04-23023 April 1998
Forwards Proposed Changes to QATR CE 1-A,rev 66.Change Constitutes Major Programmatic Rev to Onsite & Offsite Review Processes as Presently Described in Rept
ML20246Q1391998-04-20020 April 1998
Provides Response to Violations Noted in Insp Repts 50-010/98-08,50-237/98-08 & 50-249/98-08.Corrective Actions: Described in Attachment Which Contains Safeguards Matl.Encl Withheld
ML20217N3461998-03-31031 March 1998
Provides Basis for Plant Conclusion That Dam Failure Coincident W/Loca Is Beyond Design Basis of Dresden,Units 2 & 3.Licensing Amend Is Not Necessary & Clarifications to UFSAR May Be Made Through Provisions of 10CFR50.59
ML20216H4041998-03-13013 March 1998
Forwards Revs to Byron,Dresden,Lasalle & Zion Station OCDM, Current as of 971231,ODCM Manual & Summary of Changes Included
ML20203L2911998-02-27027 February 1998
Provides Revised Schedule for Hazardous Matl Response Drill Described in 971121 Response to Insp Repts 50-010/97-13,50-237/97-13,50-249/97-13 & NOV
1999-09-30
[Table view]
Category:UTILITY TO NRC
MONTHYEARML20059F0311990-08-27027 August 1990
Provides Schedule for Completion of Installation of Mods to Plants Reactor Water Level Instrumentation,Per Generic Ltr 84-23.Penetrations Will Be Installed During Outage 13 for Dresden & During Outage 12 for Quad-Cities
ML20055H7631990-07-25025 July 1990
Forwards Financial Info Re Decommissioning of Plants
ML17202L2861990-07-0202 July 1990
Forwards Dresden II Upper Vessel Contract Variation Review, La Salle II Upper Vessel Fabrication Summary & Quad-Cities II Upper Vessel Fabrication Summary.
ML20043D3231990-06-0101 June 1990
Forwards Rev 31 to Security Plan.Rev Withheld (Ref 10CFR73.21)
ML20043C8181990-05-30030 May 1990
Forwards Rev 1 to Core Operating Limits Rept,Dresden Station Unit 2,Cycle 12. Rev Reflects MCPR Limit Adjustment for Cycle 12 Due to Number of Reused Channels,Per Discussion of Channel Bow Effects in BWRs in NRC Bulletin 90-002
ML17202G7741990-02-0505 February 1990
Forwards Core Operating Limits Rept,Dresden Station Unit 2,Cycle 12,Rev 0 & Core Operating Limits Rept,Dresden Station Unit 3,Cycle 12,Rev 0. Cycle 12 Startup Expected on 900210
ML19332D3011989-11-15015 November 1989
Provides Update Concerning Evaluation of long-term Improvements to Unit 2 & 3 Isolation Condenser Shell Side Clean Demineralized Water Supply Sys
ML19324C2271989-11-0909 November 1989
Forwards Response to Regulatory Effectiveness Review Insp on 890731-0804.Response Withheld
ML17285A8081989-10-18018 October 1989
Responds to Request for Info on Environ Qualification of Taped Electrical Splices.Scotch Tapes Allowed by Electrical Test Guide Included Scotch 33,23 & 70
ML20248D0881989-09-21021 September 1989
Forwards Rev 56 to QA Program Topical Rept CE-1-A
ML19325C5601989-09-13013 September 1989
Forwards Response to Allegation RIII-87-A-0074 Re Employment Discrimination,Per Eg Greenman 890801 Ltr to C Reid
ML20245H3771989-08-0909 August 1989
Forwards Listed Policies,Including Endorsements 24 & 25 to Nelia Policy NF-294,Endorsements 19 & 20 to Maelu Policy MF-128,Endorsements 36 & 37 to Nelia Policy NF-277 & Endorsements 29 & 30 to Maelu Policy MF-114
ML20246L8141989-07-0101 July 1989
Forwards Dresden Nuclear Power Station Monthly Operating Summary Rept for June 1987.Info Previously Submitted on Annual Basis Now Included in Monthly Summary Rept
ML20245L6831989-06-29029 June 1989
Forwards Addl Info on Emergency Planning & Fuel Handling Accident,Per E Erickson & R Beck Request
ML20245G2411989-06-19019 June 1989
Forwards Endorsements 55,28,205,179,55,37,117,100,108 & 97 to Nelia & Maelu Policies NF-227,MF-114,NF-43,MF-22,NF-253, MF-104,NF-187,MF-54,NF-201 & MF-64.respectively
ML20247J1051989-05-17017 May 1989
Responds to Items from SALP 8 Board Repts 50-237/89-01 & 50-249/89-01 for Feb 1988 - Jan 1989.Plant Security Program Now Implements All Aspects of Reporting All Events Identified,Per App E & Section 5.7,to NRC within 1 H
ML20246B9501989-04-28028 April 1989
Forwards Rev 55 to CE-1-A, QA Program for Nuclear Generating Stations. Rept Reflects Organizational Changes Resulting from Current Self Analysis Performed in Effort to Improve Effectiveness
ML20245J2421989-04-25025 April 1989
Forwards Rev 27 to Security Plan.Rev Withheld (Ref 10CFR73.21)
ML20247B6021989-04-13013 April 1989
Forwards Results of Util Investigation of Allegation RIII-88-A-0147 Re Fitness for Duty.Encl Withheld (Ref 10CFR2.790(a)(7))
ML20245A1521989-04-12012 April 1989
Forwards Monthly Performance Rept for Mar 1989.W/o Encl
ML20244B5081989-04-10010 April 1989
Forwards Addl Info Re Accident Analysis & Protective Action Plans During Emergency Conditions
ML20244A7421989-04-0303 April 1989
Responds to 890201 Telcon Request for Addl Info Re Item 2.2.1.3, Use of Info Handling Sys & Item 2.2.1.4, Mgt Control of Generic Ltr 83-28
ML20244D1101989-03-28028 March 1989
Forwards Corrected Radioactive Effluent Rept for Jul-Dec 1988 for Plant.Final Data for Sr-89,Sr-90,Fe-55,tritium & Gross Alpha Included in Rept
ML20248D9741989-03-27027 March 1989
Forwards Response to Requests for Addl Info Re Emergency Plan,Tech Specs & Decommissioning Plan.Info on Emergency Plan Requirements Will Be Provided by 890410,per 890323 Discussion W/P Erickson
ML20247B2791989-03-23023 March 1989
Forwards Endorsements 23,18,34,27,202,176,54,36,114,97,105 & 93 to Nelia Policies NF-294,MF-128,NF-277,MF-114,NF-43, MF-22,NF-253,MF-104,NF-187,MF-54,NF-201 & MF-64, Respectively
ML20246P2311989-03-20020 March 1989
Forwards Endorsements 203 & 204 to Nelia Policy NF-43, Endorsements 177 & 178 to Maelu Policy MF-22,Endorsements 115 & 116 to Nelia Policy NF-187 & Endorsements 98 & 99 to Maelu Policy MF-54
ML20247G5311989-03-20020 March 1989
Forwards Overheads Used at 890301 Meeting W/Region III Personnel in Working Group Level to Discuss Dc Ground Policy & How It Applies to Facilities
ML20235V2721989-03-0101 March 1989
Forwards Corrected Rev 54 to Topical Rept CE-1-A, QA Program for Nuclear Generating Stations, Incorporating Pages 1-38 & 1-44
ML20235V5921989-02-28028 February 1989
Informs That Response to 880707,0927 & 890107 Requests for Addl Info Re Emergency Plan,Tech Specs & Decommissioning Plan Will Be Submitted by 890327,per 890228 Telcon W/P Erickson
ML20235U4251989-02-28028 February 1989
Forwards Rev 26 to Security Plan.Rev Withheld
ML20247E7771989-02-24024 February 1989
Forwards Radwaste & Environ Monitoring,Annual Rept 1988
ML20235Y6321989-02-22022 February 1989
Forwards Occupational Radiation Exposure Portions of Plants Operating Repts for 1988,per Reg Guide 1.16
ML20235Y8731989-02-14014 February 1989
Forwards Occupational Radiation Exposures Rept for 1988,per Reg Guide 1.16
ML20235Y6481989-02-14014 February 1989
Forwards Occupational Radiation Exposure Rept for 1988,per Reg Guide 1.16
ML20235U3411989-02-13013 February 1989
Forwards Corrected Radioactive Effluent Rept for Jan-June 1988.Final Data for Sr-89,Sr-90,Fe-55,tritium & Gross Alpha Included
ML20235Y6541989-02-0606 February 1989
Forwards Occupational Radiation Exposure Rept for 1988,per Reg Guide 1.16
ML20235Y8491989-02-0202 February 1989
Forwards Occupational Radiation Exposure Rept for 1988,per Reg Guide 1.16
ML20235Y8571989-02-0101 February 1989
Forwards Occupational Radiation Exposures for 1988,per Reg Guide 1.16
ML20235Y6401989-01-27027 January 1989
Forwards Occupational Radiation Exposures Rept for 1988,per Reg Guide 1.16
ML20206K1501988-11-21021 November 1988
Provides Addl Info Re Util Decommissioning Plan & Tech Specs Per NRC 880927 Request.Info Provided Discussed W/P Erickson of NRC on 881117
ML20205P9231988-11-0101 November 1988
Discusses Proposed 881116 Meeting Re Dcrdr Mods & Enhancements,Including Program Overview,Summary of Completed & on-schedule Human Engineering Discrepancy Corrections & More Detailed Discussion of Items
ML20154N8291988-09-23023 September 1988
Forwards Rev 25 to Security Plan.Rev Outlines Declassification of Unit 1 Reactor Sphere,Core spray/post- Incident Room & Cribhouse.Rev Withheld (Ref 10CFR73.21)
ML20154D2881988-09-0808 September 1988
Responds to NRC Bulletin 88-005 & Suppls 1 & 2 Re Piping Supplies,Inc & West Jersey Mfg Co Matls Complying W/Asme Code Requirements.Itemized List of Components Received Encl
ML20205A7531988-09-0202 September 1988
Responds to 880707 Request for Addl Info Re Emergency Plan Requirements for Facility Fuel Storage.Response Re Worst Case Skin Doses Projected Onsite & Worst Case Fuel Rod Rupture Provided
ML20207F7261988-08-16016 August 1988
Forwards Endorsements 198 & 199,110 & 111 & 101 & 102 to Nelia Policies NF-43,NF-187,NF-201,respectively & Endorsements 172 & 173,93 & 94 & 89 & 90 to Maelu Policies MF-22,MF-54 & MF-64,respectively
ML20155D2241988-06-0202 June 1988
Forwards Response to NRC Re Violations Noted in Insp Repts 50-010/88-02,50-237/88-07 & 50-249/88-08. Corrective Actions Withheld
ML20154L8391988-05-27027 May 1988
Forwards Rev 24 to Security Plan to Correct & Make Current Identification on Number of Vital Area Doors on Various Levels.Rev Withheld (Ref 10CFR73.21)
ML20154L7711988-05-19019 May 1988
Forwards Endorsements 197 to Nelia Policy NF-43,171 to Maelu Policy MF-22,50 to Nelia Policy NF-253,32 to Maelu Policy MF-104,109 to Nelia Policy NF-187 & 92 to Maelu Policy MF-54
ML20153G6091988-04-29029 April 1988
Forwards Environ Rept of Current Decommissioning Status of Dresden 1 & Decommisioning Program Plan for Dresden Nuclear Power Station Unit 1. Fee Paid
ML20151U6961988-04-25025 April 1988
Forwards Endorsements 195 & 196 to Nelia Policy NF-43, Endorsements 169 & 170 to Maelu Policy MF-22,Endorsements 99 & 100 to Nelia Policy NF-201 & Endorsements 86 & 87 to Maelu Policy MF-64
1990-08-27
[Table view] |
Text
3
" (
Comm:nh.Jth Edison (s
v
y 'J' Oni First National o'aza. Chicago, Illincis
' C n Addri,ss R: ply 'o: Post Offica Box 767
,g Chicago, Illinch 50690 August 13, 1979 Mr. Paul W. O'Connor Operating Reactors - Branch 2 U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
Dresden Station Unit 1 Systematic Evaluation Program Seismic Review ,
NRC Docket No. 50-10
Dear Mr.'O'Connor:
The enclosed information concerning the scismic analysis of Dresden Unit 1 is being sent in-responic to -
questions received during a July 20, 1979 conference call between Commonwealth Edison, Sargent & Lundy, and NRC Staff personnel.
Please direct any questions you may have concerning this matter to this office.
In acccrdance with previous agreements, eight (8) copies of this transmittal and enclosures are provided for your use.
Very truly yours, Robert F. Janecek Nuclear Licensing Administrator Boiling Water Reactors en".losure . , , ~ . .
t.. .. _. ~ .... .- = -..
I 1
9 0820035%- b
\\
. . .. ~ - . -. - . - _ - - -_
. ( (-
Question Th'e NRC questioned the modeling of four slabs at elevation 548'0" in the horizontal seismic model of the containment interior structures in SAD Report 261, " Seismic Analysis of the Reactor and Steam Drum
~
Support Structure Inside the Containment."
Response
. The four slabs modeled at elevation 548'0" represent the four nuclear steam instrumentation rooms and FW control rooms at the ,
, four corners, as shown in S&L drawing no. M-991, transmitted to you earlier. .
As you requested, the mode shape printout for the first 10 modes, along with the structural periods and participation factors in--the -
x- and y-di'rections of the horizontal building model are enclosed. -
Table 1 shows the natural periods of vibration in various modes.
^^
Normalized mode shapes for the first 10 modes are given in Table 2, and Table 3 includes the participation factors of natural modes of
. vibration in the x- and y-directions. The structural model has 80 dynamic degrees of freedom. There are 10 slabs. The first 10 rows in Table 2 represent the x mode shape displacement of the ten slabs; rows 11 to 20 represent the y-displacement; and rows 21 to 30 represent 0 3, the torsional movement of each slab.
e 4
e a .
e 0
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- 3'.! 2. I U R H L FERIC05 5.". ; .-
M0;E FREGUENCY PERjl'Qsw Ce5 1 . 2'J20 9.9500 2 .1279 7.8309
! ? .1250 8.0019 i
9 .1029 9.7k5h i 5 .0968 10.2co, l 6 .0737 12.708b 7 .07?5 12.9091 l 2 .0726 13.7793 9 0700 19.2705 10 .C692 19.6600
. 11 .0609 16.5593 ~'
12 .0557 17.9611
. I'4 .0501 49.95H9 15 .0929 P.O.9360 lb .Du78 2C.9195 .
17 .0977 20.9699 19 .0971 21.2258 19 .C967 21.9142 ' -
23 - - '
.0996 22.9328 .
21 .0935 22.9999 ~
22 .0918 23.9C52 .
.0085 23 25.9915 .
~
29 .0375 26.6978 25 .03bu 27.898.7 26 .0397 20.7S06 -
27 .0336 29.703S 28 .0335 29.B321
- 29 .0318 31.4237 30 .G301 33.2761 rABL Ei 2-
~~~
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< .12,4-03 .3055-C3 .3325-09 .7397-C6 .9556-09 .6223-C4 .E019-C5 .211C-C9 .2293-C9 3245-0*
- 1 .1895-01 .3053-03 .7291-C2 .11EO-C2 .1691-01 5210-C1 .5041-C2 .40w7-01 .9703-C3 .3376-C2
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Question NRC questioned the calculation of local stresses in the spherical containment shell of the penetrations in the Sargent & Lundy report (SAD-257), " Stress Report for Primary Containment Penetrations."
Response
Stresses in the spherical shell at the penetration attachment for the applied forces are calculated based upon Welding Research Council Bulletin No. 107. These stresces are'then added to the .
, original stress intensity values in the spherical shell due to internal pressure, weight, and temperature variation in th.e shell calculated by Chicago Bridge & Iron Co.
NRC raised a concern regarding the change in the original.str'ess'es ~
in the sheI1 (calculated by Chicago Bridge & ~ Iron Co.) due to -
the penetraticn openings in the shell. It is true that stresses
~-
in the shell in the immediate vicinity of the openings will be
. dif ferent , but according to the ASME Code,Section III, Subsection
- NE (Class MC Component),1974 edition, the stress limit requirements
,g of NE-3221 in the immediate vicinity'of the openings do not have to be satisfied if the rules of NE-3330 are met. The shell is
,. reinforced around the openings as required by NE-3332. This rein-forcement around the openings redistributes the localized stress concentrations. Thus, the original stress values in the spherical shell can be used to check the stress limit requirements as per NE-3221 at the penetration attachments.
E e
. n
( (
Question NRC questioned the modeling of the outside supporting columns as an equivalent axisymmetric cylindrical shell in SAD Report 267, " Feasibility Analysis of the Primary Containment Vessel to Meet NRC Criteria."
Response
For axisymmetric loads (such as dead load, snow load, LOCA pressure, flood, etc), the columns were modeled as an axisymmetric cylindrical
~
shell of appropriate thickness and height to provide the same vertical and lateral stiffness effect as the columns. The calcu-lations for obtaining the properties of the equivalent cyclinder are given'below:
Ver':ical Loading Vertical deflection in the columns due to load P g:
PL g , (y) b Z
- 16Ti where A = area of 1 of the 20 columns
",. L = length of columns E = modulus of elasticity For the equivalent cylinder:
'l! P L O
Z " 2nRc t cc l where subscript c denotes the parameters for the equivalent
! cylindrical shell; ,
R c = radius tg = thickness -
j L
c = length'of thB cylinder .
t e
1
-( (
Lateral Loadinc ,
Radial deflection for the column due to load P IR Pb R
A ~
(}
R
- TEI where I = moment of intertia of one of the 20 columns.
. For the equivalent cylinder: .
AR " 2n Rc I 2DA 3 3 .
I4)
(Reference 1) '
~
3 where D =
t cc y A 4 3 (1-v2) .
2 12 (1-v ) R2t,2 g ~
Choosing E c = E, v = 0. 3, and Rc = 95', the values of thickness c and length L c f r the equivalent cyclinder were obtained from-t the above four equations by equating the vertical and lateral
' deflections in the columns and the cyclindrical shell.
N In the above derivation, radial (lateral) stiffness of columns has been equated to the radial stiffness of the cylindrical shell, n'
which in turn is derived considering the hoop and the bending stiffness of the cylindrical shell (given by Equation 4) . Thus, hoop stif fness is considered in the above equation in calcSlating the radial deflection of the cylindrical shell and is not additional.
Reference ,
- l. Timoshenko and.Krieger., " Theory of Plates and Shells," p. 469, Equation 279, McGraw-Hill Book Cor.pany, 1959.
s'
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