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Category:CORRESPONDENCE-LETTERS
MONTHYEARML20217N1931999-10-22022 October 1999
Forwards Insp Rept 50-298/99-12 on 990927-30.No Violations Noted.Insp Exam of Activities Under License as They Relate to Emergency Preparedness & to Compliance with Commission Rules & Regulations & with Conditions of License
ML20217G8771999-10-14014 October 1999
Forwards Insp Rept 50-298/99-10 on 990920-24.No Violations Noted
ML20217G7401999-10-14014 October 1999
Forwards MOR for Sept 1999 for Cooper Nuclear Station. Rept Includes Documentation of Challenges to Safety/Relief Valves,Iaw TS 5.6.4
ML20217C2671999-10-0808 October 1999
Forwards Insp Rept 50-298/99-03 on 990823-27 & 0907-10.No Violations Noted.Purpose of Insp to Ensure That Licensee Had Effective Programs for Identifying,Evaluating & Correcting Problems Which Could Impact Safe Plant Operations
ML20212K9661999-09-30030 September 1999
Forwards Safety Evaluation Accepting plant-specific Safety Evaluation Rept for USI A-46 Program Implementation at Cooper Nuclear Station
ML20216J1081999-09-28028 September 1999
Ltr Contract:Task Order 048, Cooper Safety Sys Design & Performance Capability Insp, Under Contract NRC-03-98-021
ML20212J5061999-09-27027 September 1999
Forwards Insp Rept 50-298/99-07 on 990718-0828.No Violations Noted.Inspectors Focused on Implementation of Licensee Reactor Safety & Emergency Preparedness Programs
ML20212F3641999-09-22022 September 1999
Forwards Insp Rept 50-298/99-09 on 990823-26.No Violations Noted
ML20216J8061999-09-20020 September 1999
Forwards Rev 37 to Safeguards Plan,Iaw Provisions of 10CFR50.(p).Rev Withheld,Per 10CFR73.21
ML20212C4921999-09-15015 September 1999
Forwards Monthly Operating Rept for Aug 1999 for Cooper Nuclear Station.Rept Includes Operating Data Rept,Unit SD Rept & Documentation of Challenges to Safety/Relief Valves
ML20212A6061999-09-14014 September 1999
Forwards Insp Rept 50-298/99-08 on 9900816-20.No Violations Noted.Insp Focused on Implementation & Effective Performance of Access Authorization/Fitness-for-Duty (Behavior Observation) Program & Access Control of Personnel
ML20211N5271999-09-0202 September 1999
Responds to NRC 990823 RAI Re Y2K Readiness at Cooper Nuclear Station,Per GL 98-01,Suppl 1
05000298/LER-1999-006, Forwards LER 99-006-00 for Cns.Commitments Made by Util Encl1999-08-26026 August 1999
Forwards LER 99-006-00 for Cns.Commitments Made by Util Encl
ML20211F1311999-08-24024 August 1999
Forwards Rev 1 to Calculation Nedc 97-044, NPSH Margins for RHR & CS Pumps, in Support of 990615 Proposed Amend to DPR-46 Re Containment Overpressure Contribution to ECCS Pumps NPSH Requirements
05000298/LER-1999-003, Informs That Commitment Re Insp Rept 50-298/98-15 & LER 99-003,to Bound Extent of Condition & Take Appropriate C/As Is Now Complete.Addl Time Is Required to Accommodate Training of Engineering Support Personnel1999-08-23023 August 1999
Informs That Commitment Re Insp Rept 50-298/98-15 & LER 99-003,to Bound Extent of Condition & Take Appropriate C/As Is Now Complete.Addl Time Is Required to Accommodate Training of Engineering Support Personnel
ML20211F4661999-08-23023 August 1999
Discusses GL 98-01 Issued by NRC on 980511 & NPPD Responses for Cooper Nuclear Station & 990628 & Results of Visit to Plant on 990811-12.Staff Determined That Integrated Contigency Plan Incomplete & CNS Not Y2K Ready
ML20210R0301999-08-12012 August 1999
Forwards Monthly Operating Rept for July 1999 for Cooper Nuclear Station,Iaw Guidance Provided by GL 97-02.Rept Also Includes Documentation of Challenges to Srvs,Per TS 5.6.4
ML20211A9501999-08-12012 August 1999
Discusses 990720-21 Workshop Conducted in Region IV Ofc,Re Exchange of Info in Area of Use of Risk Insights in Regulatory Activities.List of Attendees,Summary of Topic & Issues,Agenda & Copies of Handouts Encl
ML20210P6761999-08-10010 August 1999
Requests That Following Changes Be Made to Distribution on NRC Correspondence
ML20210P6861999-08-0909 August 1999
Forwards Insp Rept 50-298/99-06 on 990530-0717.No Violations Noted.During Insp,Inspectors Identified Two Issues Categorized as Being Low Risk Significance & within Licensee Response Band
ML20210N1331999-08-0606 August 1999
Forwards Notice of Withdrawal of Application for Amend to FOL DPR-46.By Ltr Licensee Withdrew Amend Request Which Would Have Revised Usfar to Reflect as-built Configuration of Reactor Bldg Isolation Dampers
ML20210L1461999-08-0303 August 1999
Informs That NRC Plans to Administer Gfes of Written Operator Licensing Exam on 991006.Requests Submittal of Ltr Identifying Individuals Taking Exam,Personnel Allowed Access to Exams & Mailing Address for Exams
ML20210K6071999-08-0202 August 1999
Submits Withdrawal of Proposed License Amend Re Secondary Containment Isolation Description & Refueling Accident Analysis Results
ML20210K3811999-08-0202 August 1999
Forwards Listed Info,Which NPPD Believes Demonstrates Ability to Obtain Funds in Amount of $10 Million for Payment of Such Premiums within Specified Three Month Period,Iaw 10CFR140.21
ML20210G5101999-07-28028 July 1999
Forwards fitness-for-duty Program semi-annual Performance Rept for Period of 990101-0630,per Provisions of 10CFR26.71(d)
ML20210D2541999-07-21021 July 1999
Forwards Insp Rept 50-298/99-02 on 990628-0702.Purpose of Insp Was Primarily to Evaluate Effectiveness of Licensed Operator Requalification Program.No Violations Were Identified
ML20210C2041999-07-20020 July 1999
Discusses 990715 Mgt Meeting with Midamerican Energy Co Re risk-informed Baseline Insp Program Recently Implemented at Cooper & Fort Calhoun Stations
ML20209H8191999-07-15015 July 1999
Forwards Safety Evaluation on GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves, for Cooper Nuclear Station
ML20209E6951999-07-12012 July 1999
Discusses Response to RAI on GL 92-01,rev 1,suppl 1, Rv Structural Integrity. Recommends Review of New Database Diskettes on Listed Website.Comments Due by 990901 or Data Entered Into Rvid for Plant Will Be Acceptable
ML20209D8731999-07-0808 July 1999
Refers to 990707 Meeting Re Licensee Recent Maintenance Program self-assessment.Also Discussed How Licensee Incorporated Assessment Findings Into Rev of Maintenance Performance Improvement Plan.List of Attendees Encl
ML20209B7851999-07-0101 July 1999
Forwards Corrected Occupational Radiation Exposure Repts, for Cys 1996 & 1997.Util Stated That Repts Did Not Properly Tabulate Number of Personnel Receiving Exposures Less than 100 Mrem by Work & Job Functions in CY96 & CY97
05000298/LER-1999-005, Forwards LER 99-005-00 for Cns.Commitments Made by Util Encl1999-07-0101 July 1999
Forwards LER 99-005-00 for Cns.Commitments Made by Util Encl
ML20196J2471999-06-29029 June 1999
Discusses Completion of Licensing Action for GL 97-04, Assurance of Sufficient Net Positive Suction Head for ECC & Containment Heat Removal Pumps,
05000298/LER-1999-004, Forwards LER 99-004-01.Commitments Made by Util Are Encl1999-06-28028 June 1999
Forwards LER 99-004-01.Commitments Made by Util Are Encl
ML20209B5451999-06-28028 June 1999
Submits Response to NRC GL 98-01,Suppl 1, Y2K Readiness of Computer Sys at Nuclear Power Plants. Disclosure Encl
ML20196H0331999-06-24024 June 1999
Informs NRC of Deletion of 1991 Commitment Contained in Ltr Re Feedwater Nozzle Bypass Leakage Monitoring at Plant
ML20196F7511999-06-24024 June 1999
Discusses 990622 Meeting with Public at Arbor Manor, Alburn,Ne to Provide Overview of Pilot Insp Program
ML20209A7221999-06-23023 June 1999
Submits Revised Pages to Proposed Change to Plant TS Previously Submitted in ,Per 990615 Telcon with NRC
ML20196F5331999-06-22022 June 1999
Forwards Examination Summary Rept for FW Nozzle Examinations Performed During 1998 Fall Refueling Outage at Cooper Nuclear Station.Rept Covers Past Examinations Up to & Including 1998 Fall Refueling Outage
ML20196B4681999-06-17017 June 1999
Forwards TS Bases Changes Made at Plant Subsequent to Receipt of License Amend 178,dtd 980731,for Conversion to Its,Through 990610.List of Effective Pages for TS Bases, Encl
ML20196E1411999-06-16016 June 1999
Forwards Insp Rept 50-298/99-05 on 990502-29.Noncited Violations Identified
ML20195H8891999-06-14014 June 1999
Forwards Response to NRC 990315 RAI Re GL 95-07, Pressure Locking & Thermal-Binding of SR Power-Operated Gate Valves, 180-day Response Submitted by District on 960213
ML20195F6171999-06-0909 June 1999
Informs That GE Rept, Matl Presented by GE 970709 Meeting at Cooper Nuclear Power Station Re Replacement of ECCS Pump Suction Strainers Between Nppd,Ge & NRC Staff, Will Be Withheld from Public Disclosure as Requested
ML20207G3031999-06-0808 June 1999
Ack Receipt of Which Transmitted Changes to Cooper Nuclear Station EP Implementing Procedure EPIP 5.7.1, Emergency Classification,Rev 24,under 10CFR50,App E,Section V Provisions.No Violations Identified
ML20195E2351999-06-0808 June 1999
Forwards Response to NRC 990517 RAI Re Util Proposed Change to TS Re Calibr Frequency of Reactor Recirculation Flow Transmitters Associated with APRM
ML20207G4481999-06-0808 June 1999
Ack Receipt of Which Transmitted Changes to Cooper Nuclear Station EP Implementing Procedure,Epip 5.7.1, Emergency Classification,Rev 23 C2,under Provisions of 10CFR50,App E,Section V
ML20207G3001999-06-0707 June 1999
Ack Receipt of Which Transmitted Changes to Cooper Nuclear Station Ep,Rev 33,under Provisions of 10CFR50,App E,Section V.No NRC Approval Required Based on Determination That EP Effectiveness Not Affected by Changes
ML20207G4531999-06-0707 June 1999
Ack Receipt of Which Transmitted Changes to Cooper Nuclear Station EP Implementing Procedure EPIP 5.7.1, Emergency Classification,Revision 25,under Provisions of 10CFR50,App E,Section V
ML20207D3811999-05-27027 May 1999
Informs That During Next 6 to 12 Months,Starting 990530,NRC Plans to Conduct Insps Shown in Attached Insp Plan.Insps Include Both Planned Baseline & Supplemental Insps (Formerly Core & Regional Initiative Insps)
ML20207A5191999-05-19019 May 1999
Forwards Insp Rept 50-298/99-04 on 990321-0501.Four Violations Identified & Being Treated as non-cited Violations
1999-09-30
[Table view]
Category:OUTGOING CORRESPONDENCE
MONTHYEARML20217N1931999-10-22022 October 1999
Forwards Insp Rept 50-298/99-12 on 990927-30.No Violations Noted.Insp Exam of Activities Under License as They Relate to Emergency Preparedness & to Compliance with Commission Rules & Regulations & with Conditions of License
ML20217G8771999-10-14014 October 1999
Forwards Insp Rept 50-298/99-10 on 990920-24.No Violations Noted
ML20217C2671999-10-0808 October 1999
Forwards Insp Rept 50-298/99-03 on 990823-27 & 0907-10.No Violations Noted.Purpose of Insp to Ensure That Licensee Had Effective Programs for Identifying,Evaluating & Correcting Problems Which Could Impact Safe Plant Operations
ML20212K9661999-09-30030 September 1999
Forwards Safety Evaluation Accepting plant-specific Safety Evaluation Rept for USI A-46 Program Implementation at Cooper Nuclear Station
ML20216J1081999-09-28028 September 1999
Ltr Contract:Task Order 048, Cooper Safety Sys Design & Performance Capability Insp, Under Contract NRC-03-98-021
ML20212J5061999-09-27027 September 1999
Forwards Insp Rept 50-298/99-07 on 990718-0828.No Violations Noted.Inspectors Focused on Implementation of Licensee Reactor Safety & Emergency Preparedness Programs
ML20212F3641999-09-22022 September 1999
Forwards Insp Rept 50-298/99-09 on 990823-26.No Violations Noted
ML20212A6061999-09-14014 September 1999
Forwards Insp Rept 50-298/99-08 on 9900816-20.No Violations Noted.Insp Focused on Implementation & Effective Performance of Access Authorization/Fitness-for-Duty (Behavior Observation) Program & Access Control of Personnel
ML20211F4661999-08-23023 August 1999
Discusses GL 98-01 Issued by NRC on 980511 & NPPD Responses for Cooper Nuclear Station & 990628 & Results of Visit to Plant on 990811-12.Staff Determined That Integrated Contigency Plan Incomplete & CNS Not Y2K Ready
ML20211A9501999-08-12012 August 1999
Discusses 990720-21 Workshop Conducted in Region IV Ofc,Re Exchange of Info in Area of Use of Risk Insights in Regulatory Activities.List of Attendees,Summary of Topic & Issues,Agenda & Copies of Handouts Encl
ML20210P6861999-08-0909 August 1999
Forwards Insp Rept 50-298/99-06 on 990530-0717.No Violations Noted.During Insp,Inspectors Identified Two Issues Categorized as Being Low Risk Significance & within Licensee Response Band
ML20210N1331999-08-0606 August 1999
Forwards Notice of Withdrawal of Application for Amend to FOL DPR-46.By Ltr Licensee Withdrew Amend Request Which Would Have Revised Usfar to Reflect as-built Configuration of Reactor Bldg Isolation Dampers
ML20210L1461999-08-0303 August 1999
Informs That NRC Plans to Administer Gfes of Written Operator Licensing Exam on 991006.Requests Submittal of Ltr Identifying Individuals Taking Exam,Personnel Allowed Access to Exams & Mailing Address for Exams
ML20210D2541999-07-21021 July 1999
Forwards Insp Rept 50-298/99-02 on 990628-0702.Purpose of Insp Was Primarily to Evaluate Effectiveness of Licensed Operator Requalification Program.No Violations Were Identified
ML20210C2041999-07-20020 July 1999
Discusses 990715 Mgt Meeting with Midamerican Energy Co Re risk-informed Baseline Insp Program Recently Implemented at Cooper & Fort Calhoun Stations
ML20209H8191999-07-15015 July 1999
Forwards Safety Evaluation on GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves, for Cooper Nuclear Station
ML20209E6951999-07-12012 July 1999
Discusses Response to RAI on GL 92-01,rev 1,suppl 1, Rv Structural Integrity. Recommends Review of New Database Diskettes on Listed Website.Comments Due by 990901 or Data Entered Into Rvid for Plant Will Be Acceptable
ML20209D8731999-07-0808 July 1999
Refers to 990707 Meeting Re Licensee Recent Maintenance Program self-assessment.Also Discussed How Licensee Incorporated Assessment Findings Into Rev of Maintenance Performance Improvement Plan.List of Attendees Encl
ML20196J2471999-06-29029 June 1999
Discusses Completion of Licensing Action for GL 97-04, Assurance of Sufficient Net Positive Suction Head for ECC & Containment Heat Removal Pumps,
ML20196F7511999-06-24024 June 1999
Discusses 990622 Meeting with Public at Arbor Manor, Alburn,Ne to Provide Overview of Pilot Insp Program
ML20196E1411999-06-16016 June 1999
Forwards Insp Rept 50-298/99-05 on 990502-29.Noncited Violations Identified
ML20195F6171999-06-0909 June 1999
Informs That GE Rept, Matl Presented by GE 970709 Meeting at Cooper Nuclear Power Station Re Replacement of ECCS Pump Suction Strainers Between Nppd,Ge & NRC Staff, Will Be Withheld from Public Disclosure as Requested
ML20207G3031999-06-0808 June 1999
Ack Receipt of Which Transmitted Changes to Cooper Nuclear Station EP Implementing Procedure EPIP 5.7.1, Emergency Classification,Rev 24,under 10CFR50,App E,Section V Provisions.No Violations Identified
ML20207G4481999-06-0808 June 1999
Ack Receipt of Which Transmitted Changes to Cooper Nuclear Station EP Implementing Procedure,Epip 5.7.1, Emergency Classification,Rev 23 C2,under Provisions of 10CFR50,App E,Section V
ML20207G4531999-06-0707 June 1999
Ack Receipt of Which Transmitted Changes to Cooper Nuclear Station EP Implementing Procedure EPIP 5.7.1, Emergency Classification,Revision 25,under Provisions of 10CFR50,App E,Section V
ML20207G3001999-06-0707 June 1999
Ack Receipt of Which Transmitted Changes to Cooper Nuclear Station Ep,Rev 33,under Provisions of 10CFR50,App E,Section V.No NRC Approval Required Based on Determination That EP Effectiveness Not Affected by Changes
ML20207D3811999-05-27027 May 1999
Informs That During Next 6 to 12 Months,Starting 990530,NRC Plans to Conduct Insps Shown in Attached Insp Plan.Insps Include Both Planned Baseline & Supplemental Insps (Formerly Core & Regional Initiative Insps)
ML20207A5191999-05-19019 May 1999
Forwards Insp Rept 50-298/99-04 on 990321-0501.Four Violations Identified & Being Treated as non-cited Violations
ML20206Q6171999-05-17017 May 1999
Forwards RAI Re 990301 & 10 Ltrs Re Proposed TS Changes to Calibr Frequency of Recirculation Flow Transmitters from Once Every 184 Days to Once Every 18 Months.Util Responses Should Be Provided within 30 Days of Ltr Date
ML20206P0171999-05-12012 May 1999
Discusses GL 96-05 Issued on 960918 & NPPD Responses Submitted on 961118,970317,980504 & 990222 for Cooper Nuclear Station.Forwards Safety Evaluation Concluding That NPPD Adequately Addressed Actions Requested in GL 96-05
IR 05000298/19980091999-05-12012 May 1999
Refers to Insp Rept 50-298/98-09 Conducted Between 981227-990130.During Insp,Apparent Violation of 10CFR50.50 Identified & Being Treated as non-cited
ML20206M1791999-05-11011 May 1999
Informs That NRC Ofc of NRR Reorganized Effective 990328. Reorganization Chart Encl
ML20206H4191999-05-0707 May 1999
Informs That on 990407,NRC Administered Gfes of Written Operator Licensing Exam.Licensee Facility Did Not Participate in Exam,However,Copy of Master Exam with Answer Key,Encl for Info.Without Encl
ML20206P8961999-05-0707 May 1999
Refers to Meeting Conducted at Region IV Office on 990506 Re Licensee Upcoming Rev to Strategy for Achieving Engineering Excellence & Plans to Achieve Performance Improvements.List of Attendees & Util Presentation,Encl
ML20206H7541999-05-0505 May 1999
Forwards Insp Rept 50-298/99-01 on 990207-0320.Violations Being Treated as non-cited Violations
ML20205R5541999-04-16016 April 1999
Submits Summary of 990330 Public Meeting in Brownville,Ne to Discuss Results of PPR Completed on 990211,which Allowed for Exchange on New Assessment Process,Current Performance Review & Upcoming Actions Taken in Response to Y2K Concerns
IR 05000298/19980221999-03-19019 March 1999
Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Rept 50-298/98-22 on 990107.Finds Reply Responsive to Concerns Raised in NOV
ML20205E8991999-03-19019 March 1999
Advises of Completion of Plant Performance Review on 990209 to Develop Integrated Understanding of Safety Performance. Overall Performance Was Acceptable.Problems with Communication in CR Resulted in Several Minor Events
ML20204D9451999-03-18018 March 1999
Forwards Insp Rept 50-298/98-09 on 981227-990206.Three Violations Identified & Being Treated as Noncited Violations,Consistent with App C of Enforcement Policy
ML20207M9591999-03-15015 March 1999
Forwards Request for Addl Info Re Licensee Response to GL 95-07, Pressure-Locking & Thermal-Binding of Safety-Related Power-Operated Gate Valves, for Cooper Nuclear Station
ML20204B6771999-03-15015 March 1999
Submits Withdrawal of Amend Request for Operating License DPR-46.Proposed Change Would Have Modified Facility TSs Pertaining to Neutron Monitoring Neutron Detectors
ML20207M9811999-03-15015 March 1999
Advises That Which Withdrew 980415 Amend Request, Being Treated as Withdrawal.Proposed Change Would Have Modified Facility TSs Pertaining to Neutron Monitoring,Flow Biased Rod Block Monitor
ML20204B3301999-03-11011 March 1999
Forwards SE Accepting Third 10-year Interval Inservice Insp Program Plan Requests for Relief Numbers RI-13,RI-17 & RI-25 for Plant
ML20204B7061999-03-11011 March 1999
Requests Approval of Proposed Operability Criteria for Use in Evaluation & Interim Resolution of Degraded & Nonconforming Conditions with Piping & Pipe Supports at Facility
ML20205A5811999-03-0909 March 1999
Forwards Exam Rept 50-298/99-301 for Exam Administered on 990212.Exam Included Evaluation of Four Applicants for Reactor Operator License
ML20207K3231999-03-0808 March 1999
Discusses 990224 Meeting Re Staff Critique of Refueling & Equipment Outage RE-18 & Implementation Status of Improvement Strategy for Engineering.List of Attendees & Matl Used in Presentation Encl
ML20202G1701999-02-0202 February 1999
Informs That NRC Plans to Administer Generic Fundamentals Exam Section of Written Operator Licensing Exam at Util Facility on 990407.Authorized Representative from Facility Must Submit Ltr Listing Names of Candidates
ML20202E3121999-01-22022 January 1999
Forwards Insp Rept 50-298/98-08 on 981115-1226 & Notice of Violation.First Violation Re Staff Failure to Follow Procedures (Two in Operations,One in Maint & One in Plant Support)
ML20199G6041999-01-19019 January 1999
Informs That Effective 990118,JN Donohew Has Assumed NRC Project Mgt Responsibility for Cooper Nuclear Station
ML20199E1521999-01-0707 January 1999
Forwards Insp Rept 50-298/98-22 on 981116-1208 & Notice of Violation Re Lack of Effective Oversight by Plant Mgt
1999-09-30
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Text
__ _ - - ___ ___ ._
~
November 19, 1992 Docket No. 50-298 Mr. Guy R. Horn Nuclear Power Group Manager Nebraska Public Power District Post Office Box 499 Columbus, Nebraska 68602-0499
Dear Mr. Horn:
SUBJECT:
COOPER NUCLEAR STATION - GENERIC LETTER 84-09, "RECOMBINER CAPABILITY REQUIREMENTS OF IC CFR 50.44 (TAC NO. M84046)
By letters dated June 29, and July 20, 1984, Nebraska Public Power District (NPPD), the licensee for Cooper Nuclear Station (CNS), responded to Generic letter (GL) 84-09. Due to the facility's use of an air containment atmosphere dilution (ACAD) system, the facility was found to not meet the GL 84-09 _
criteria for consideration as not having a purging /repressurization system as its primary means of combustible gas control. The facility was therefore considered subject to the recombiner requirement.
NPPD subsequently modified the facility to convert the ACAD system into a nitrogen containment atmosphere dilution (NCAD) system, eliminating the potential post-accident oxygen source. Also, all other potential post-accident sources of oxygen supply to the containment have been eliminated.
The facility thus meets the GL 84-09 criteria.
Our safety evaluation (SE) is enclosed. This concludes our efforts on TAC No M84046.
Sincerely, ORIGINAL SIGNED BY:
Harry Rood, Senior Project Manager Project Directorate IV-1 Division of Reactor Projects - Ill/IV/V _
Office of Nuclear Reactor Regulation
Enclosure:
Safety evaluation cc w/ enclosure:
See next page DISTRIBUTION:
( Docket File- NRC & Local PDRs PD4-1 Reading M. Virgilio J. Larkins P. Noonan ACRS (10) (P-315) OGC (15B18) A. B. Beach, RIV PD4-1 Plant File H. Rood J. Roe K. Bristow W. Long 0FC LA:PD4-I W PM:PD4-1 ,a D:PD4-1(WM NAME PNoon'an b HRood:pk JLarkins%L-DATE d / W/92 ((/I/92 Il/M/92 0FFICIAL RECORD COPY Document Name: C0084046.ltr 92120403[3 h21119 PDR ADOCK 05000298 -
l P PDR o e 1
'o UNITED STATES
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[(
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NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20$55 k.....p November 19, 1992 Docket No. 50-298 Mr. Guy R. Horn Nuclear Power Group Manager Nebraska Public Power District Post Office Box 499 Columbus, Nebraska 68602-0499
Dear Mr. Horn:
SUBJECT:
COOPER NUCLEAR STATION - GENERIC LETTER 84-09, "RECOMBINER CAPABILITY REQUIREMENTS OF 10 CFR 50.44 (TAC NO. M84046)
By letters dated June 29, and July 20, 1984, Nebraska Public Power District (NPPD), the licensee for Cooper Nuclear Station (CNS), responded to Generic letter (GL) 84-09. Due to the facility's use of an air containment atmosphere dilution (ACAD) system, the facility was found to not meet the GL 84-09 criU ria for consideration as not having a purging /repressurization system as its primary means of combustible gas control. The facility was therefore considered subject to the recombiner requirement.
NPPD subsequently modified the facility to convert the ACAD system into a nitrogen containment atmosphere dilution (NCAD) system, eliminating the potential post-accident oxygen source. Also, all other potential post-accident sources of oxygen supply to the containment have been eliminated.
The facility thus meets the GL 84-09 criteria.
Our safety evaluation (SE) is enclosed. This concludes our efforts on TAC No. M84046.
Sincerely, l/
4 1 l
Harry Rood, Senior Project Manager Project Directorate IV-1 Division of Reactor Projects - III/IV/V Office of Nuclear Reactor Regulation
Enclosure:
Safety evaluation cc w/ enclosure:
See next page t
l l
l l
4 Mr. Guy R. Horn fioclear Power Group Manager Cooper Nuclear Station CC:
Mr. G. D. Watson, General Counsel Nebraska Public Power District P. O. Box 499 Columbus, Nebraska 68602-0499 Cooper Nuclear Station ATTN: Mr. John M. Heacham Site Manager P. O. Box 98 Brownville, Nebraska 68321 Randolph Wood, Director Nebraska Department of Environmental Control P. O. Box 98922 !
Lincoln, Nebraska 68509-8922 Mr. Richard Moody, Chairman Nemaha County Board of Commissioners Nemaha County Courthouse
- 1824 N Street >
Auburn, Nebraska 68305 Senior Resident Inspector U.S. Nuclear Regulatory Commission P. O. Box 213 Brownville, Nebraska 68321 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Mr. Harold Borchert, Director Division of Radiological Health '
Nebraska Department of Health '
r 301 Centennial Mall, South P. O. Box 95007 Lincoln, Nebraska 68509-5007 L
