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Category:CORRESPONDENCE-LETTERS
MONTHYEARML20217M8851999-10-0808 October 1999 Informs of Staff Determination That Listed Calculations Should Be Withheld from Public Disclosure,Per 10CFR2.790, as Requested in 990909 Affidavit ML20211J7731999-08-31031 August 1999 Forwards Insp Rept 50-312/99-03 on 990802-06.No Violations Noted.Insp Included Decommissioning & Dismantlement Activities,Verification of Compliance with Selected TS & Review of Completed SEs ML20211H7481999-08-13013 August 1999 Forwards Amend 126 to License DPR-54 & Safety Evaluation. Amend Changes Permanently Defueled Technical Specification (PDTS) D3/4.1, Spent Fuel Pool Level, to Replace Specific Reference to SFP Level Alarm Switches with Generic Ref 3F0799-22, Provides Update & Rev to Submittal Made by Util Ltr with Regard to EAL Classification Methodology for Unit 3.Reponses to NRC Staff Questions Provided as Attachment D to Ltr & Reflects Discussions Held1999-07-13013 July 1999 Provides Update & Rev to Submittal Made by Util Ltr with Regard to EAL Classification Methodology for Unit 3.Reponses to NRC Staff Questions Provided as Attachment D to Ltr & Reflects Discussions Held ML20210H9541999-07-0707 July 1999 Informs NRC of Change to Rancho Seco Decommissioning Schedule,As Described in Licensee Post Shutdown Decommissioning Activities Rept ML20209D2501999-06-24024 June 1999 Informs That Util Has Revised All Sections of Rancho Seco Emergency Plan (Rsep),Change 4,effective 990624 ML20196G0431999-06-22022 June 1999 Forwards Certified Copies of Listed Nuclear Liability Endorsements for Smud Rancho Seco Nuclear Generating Station ML20195D1851999-05-27027 May 1999 Forwards Rancho Seco Annual Rept, IAW Plant Permanently Defueled TS D6.9.4 & D6.9.6b.Rept Contains Shutdown Statistics,Narrative Summary of Shutdown Experience,Er Info & Tabulation of Facility Changes,Tests & Experiments ML20195B8511999-05-27027 May 1999 Forwards Change 4 to Rancho Seco Emergency Plan, Incorporating Commitments Made to NRC as Outlined in NRC .Emergency Plan Includes Two Listed Supporting Documents ML20207E9181999-05-27027 May 1999 Informs That Effective 990328,NRR Underwent Reorganization. within Framework of Reorganization,Div of Licensing Project Mgt Created.Reorganization Chart Encl ML20206U7411999-05-18018 May 1999 Provides Summary of 990217-18 Visit to Rancho Seco Facility to Become Familar with Facility,Including Onsite ISFSI & Meeting with Representatives of Smud to Discuss Issues Re Revised Rancho Seco Ep,Submitted to NRC on 960429 ML20206M1611999-05-10010 May 1999 Forwards Listed Proprietary Calculations to Support Review of Rancho Seco ISFSI Sar.Proprietary Encls Withheld ML20206E8591999-04-12012 April 1999 Provides Info Re High Total Coliform Result in Plant Domestic Sewage Effluent Prior to Confluence with Combined Effluent.Cause of High Total Coliform Result Was Broken Flow Rate Instrument.Instrument Was Repaired on 990318 ML20204H6751999-03-19019 March 1999 Forwards Insp Rept 50-312/99-02 on 990309-11.No Violations Noted.Portions of Physical Security & Access Authorization Programs Were Inspected ML20204E4031999-03-16016 March 1999 Submits Rept of Status of Decommissioning Funding for Rancho Seco,As Required by 10CFR50.75(f)(1).Plant Is Currently in Safstor, with Operating License Scheduled to Expire in Oct 2008 ML20204E6661999-03-11011 March 1999 Forwards Rancho Seco Exposure Rept for Individuals That Received Greater than 100 Mrem During 1998,IAW TS D6.9.2.2 & NRC Regulatory Guide 1.16 ML20204E6441999-03-11011 March 1999 Forwards Individual Monitoring Repts for Personnel That Required Radiation Exposure Monitoring During 1998 ML20207L1711999-03-10010 March 1999 Informs of Staff Determination That Supporting Calculations & Drawings Contained in Rev 2 of Sar, Should Be Withheld from Public Disclosure,Per 10CFR2.790 NL-99-002, Submits Info About Property Insurance for Rancho Seco Nuclear Generating Station,Iaw 10CFR50.54(w)(3)1999-03-10010 March 1999 Submits Info About Property Insurance for Rancho Seco Nuclear Generating Station,Iaw 10CFR50.54(w)(3) ML20207D4431999-03-0101 March 1999 Forwards Annual Radioactive Effluent Release Rept, for Rancho Seco Nuclear Generating Station for 1998 ML20207H6181999-02-18018 February 1999 Provides Attached Metrix & Two Copies of Rancho Seco ISFSI Sar,Rev 2 on Compact Disc,As Requested in 990209 Meeting. First Rounds of RAIs Dealt Primarily with Use of Cask as Storage Cask.Without Compact Disc ML20203D0761999-02-10010 February 1999 Ltr Contract:Task Order 37 Entitled, Technical Assistance in Review of New Safety Analysis Rept for Rancho Seco Spent Fuel Storage Facility, Under Contract NRC-02-95-003 ML20155D4431998-10-27027 October 1998 Forwards Amend 3 to Rancho Seco Dsar,Representing Updated Licensing Basis for Operation of Permanently Shutdown & Defueled Rancho Seco Nuclear Facility During Permanently Defueled Mode.With Instructions & List of Effective Pages NL-98-032, Forwards Certified Copies of Listed Nuclear Liability Endorsements for Util1998-09-30030 September 1998 Forwards Certified Copies of Listed Nuclear Liability Endorsements for Util ML20237A6031998-08-0707 August 1998 Forwards Insp Rept 50-312/98-03 on 980706-09.No Violations Noted ML20237A9481998-08-0303 August 1998 Forwards Smud 1997 Annual Rept, IAW 10CFR50.71(b),which Includes Certified Financial Statements ML20236Q9461998-07-15015 July 1998 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Rept 50-312/98-02 ML20236J6331998-06-30030 June 1998 Forwards Response to Violations Noted in Insp Rept 50-312/98-02.Corrective Actions:Util Revised RSAP-1003 to Clarify District Security Staff Responsibilities Re Handling & Review of Criminal History Info ML20236E8211998-06-0303 June 1998 Forwards Insp Rept 50-312/98-02 on 980519-21 & NOV Re Failure to Review & Consider All Info Obtained During Background Investigation.Areas Examined During Insp Also Included Portions of Physical Security Program ML20217G8391998-04-20020 April 1998 Forwards Copy of Rancho Seco Monthly Discharger Self-Monitoring Rept for Mar 1998 IR 05000312/19980011998-03-25025 March 1998 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Rept 50-312/98-01 on 980205 ML20217F1891998-03-18018 March 1998 Forwards Signed Original & Amend 7 to Rancho Seco Long Term Defueled Condition Physical Security Plan & Rev 4 to Long Term Defueled Condition Training & Qualification Plan.Encls Withheld,Per 10CFR2.790 ML20217G6661998-03-18018 March 1998 Forwards Discharge Self Monitoring Rept for Feb 1998, Which Makes Note of One Wastewater Discharge Permit Violation ML20217H0451998-03-18018 March 1998 Submits Rancho Seco Exposure Rept for Individuals Receiving Greater than 100 Mrem During 1997,per TS D6.9.2.2 & Guidance Contained in Reg Guide 1.16.No One Exposed to Greater than 100 Mrem in 1997 ML20216K1091998-03-11011 March 1998 Forwards NRC Form 5 Individual Monitoring Repts for Personnel Who Required Radiation Exposure Monitoring,Per 10CFR20.1502 During 1997.W/o Encl ML20217N9531998-03-0505 March 1998 Responds to Violations Noted in Insp Rept 50-312/98-01. Corrective Actions:Radiation Protection Group Wrote Potential Deviation from Quality (Pdq) 97-0082 & Assigned Radiation Protection Action to Determine Cause & CAs ML20203H7001998-02-25025 February 1998 Forwards Annual Radioactive Effluent Release Rept for Jan- Dec 1997, IAW 10CFR50.36a(a)(2) & TS D6.9.3.Revs to Radiological Environ Monitoring Manual & off-site Dose Calculation Manual,Encl ML20202G0131998-02-12012 February 1998 Forwards Certified Copies of Listed Nuclear Liability Endorsements & Master Worker Policy Certificate of Insurace for Facility NL-98-006, Submits Annual Rept of Property Insurance Levels for Rsngs, IAW 10CFR50.54(w)(3)1998-02-12012 February 1998 Submits Annual Rept of Property Insurance Levels for Rsngs, IAW 10CFR50.54(w)(3) ML20202C4641998-02-0505 February 1998 Forwards Insp Rept 50-312/98-01 on 980105-08 & Notice of Violation.Insp Included Decommissioning & Dismantlement Work Underway,Verification of Compliance W/Selected TS & Main & Surveillance Activities Associated W/Sfp ML20199A5881997-11-10010 November 1997 Responds to NRC Re Violations Noted in Insp Rept 50-312/97-01.Corrective Actions:Reviewed SFP Water Temp & Instrument Calibr Records,Generated Otr 97-001 to Document out-of-tolerance Instrument & Generated Pdq 97-0064 ML20198R9501997-11-0505 November 1997 Requests Interpretation of or Rev to NUREG-1536, Std Review Plan for Dry Cask Storage Sys, Re Compliance W/ 10CFR72.236(e) & 10CFR72.122(h)(4) for Dry Fuel Storage Casks ML20198K5391997-10-21021 October 1997 Forwards Insp Rept 50-312/97-04 on 970922-25 & Notice of Violation.Response Required & Will Be Used to Determine If Further Action Will Be Necessary ML20217D3101997-09-25025 September 1997 Forwards Update of 1995 Decommissioning Evaluation, for Rancho Seco Nuclear Generation Station & Annual Review of Nuclear Decommissioning Trust Fund for Adequacy Re Assumptions for Inflation & Rate of Return ML20211F0991997-09-23023 September 1997 Forwards One Certified Copy of Mutual Atomic Energy Liability Underwriters Nuclear Energy Liability Insurance Endorsement 120 for Policy MF-0075 for Smud Rancho Seco Nuclear Facility ML20198G8141997-08-22022 August 1997 Forwards Amend 125 to License DPR-54 & Safety Evaluation. Amend Permits Smud to Change TS to Incorporate Revised 10CFR20.Amend Also Revises References from NRC Region V to NRC Region IV ML20151L0281997-07-29029 July 1997 Provides Response to NRC Request for Addl Info Re TS Change,Relocating Administrative Controls Related to QA to Ufsar,Per NUREG-0737 ML20149E5031997-07-10010 July 1997 Second Partial Response to FOIA Request for Documents. Forwards Records Listed in App C Being Made Available in Pdr.Records in App D Already Available in PDR ML20148P5161997-06-30030 June 1997 Second Partial Response to FOIA Request for Documents.App B Records Being Made Available in PDR ML20141A1721997-06-17017 June 1997 Forwards Insp Rept 50-312/97-03 on 970603-05.No Violations Noted.Areas Examined During Insp Included Portions of Physical Security Program 1999-08-31
[Table view] Category:NRC TO LEGAL/LAW FIRM
MONTHYEARML20247Q5761989-08-0303 August 1989 Response to 881103 FOIA Request for Documents Addressed to & Referred to NRC by Doj.Forwards App a Documents Made Available in PDR ML20248B4161989-06-0707 June 1989 Further Response to 890209 Appeal of 890127 Denial of FOIA Request.App B Records Encl & Available in PDR ML20247F0391989-05-16016 May 1989 Partial Response to 890209 Appeal of Denial of FOIA Request for Records.Appeal Partially Granted & Partially Denied.App a Documents Partially Withheld (Ref FOIA Exemption 6).App B Info Referred to Util for Review ML20055E3111988-07-27027 July 1988 Confirms Conversation W/E Gibbons Concerning Subpoena Issued on 880718 for 880729 Appearance of G Yuhas.Nrc Will Not File Motion to Quash Supoena Based on Understanding ML20237B4361987-12-14014 December 1987 Final Response to FOIA Request for Documents.App B Document, Board Notification 84-024,encl & Also Available in PDR ML20235M4251987-07-13013 July 1987 Partial Response to FOIA Request for Documents Re Acrs. Forwards Documents for Categories One & Three of FOIA Request.Review of 21 Addl ACRS Documents Continuing ML20215G6021987-06-18018 June 1987 Partial Response to FOIA Request for Documents.Forwards App B Documents,Including Sign in Sheet for 860925 Meeting on Engineering Expertise on Shift.App a & B Documents Available in PDR ML20210S4131986-09-26026 September 1986 Further Response to FOIA Request for 16 Categories of Records Re Facilities.Forwards App D & E Documents.Documents Also Available in PDR IA-86-290, Further Response to 860417 FOIA Request.Search Complete.No Addl Records Subj to Request Located1986-06-0606 June 1986 Further Response to 860417 FOIA Request.Search Complete.No Addl Records Subj to Request Located ML20205S3251986-06-0606 June 1986 Further Response to 860417 FOIA Request.Search Complete.No Addl Records Subj to Request Located ML20210T8391986-05-0707 May 1986 Partial Response to FOIA Request for NRC 1986 Draft Action Plan for Reevaluation of B&W Plant Safety & NRC Repts Responding to Review Items as Result of 851226 Accident. Forwards Documents Listed in App a ML20055A2601982-05-28028 May 1982 Responds to FOIA Request for Documents Re Requests by Licensees for Exemption or Extension Beyond 820201 Date Specified by Final Rule,Commission Analysis,Comments,Or Actions Re Emergency Planning.Forwards App a Documents 1989-08-03
[Table view] Category:OUTGOING CORRESPONDENCE
MONTHYEARML20217M8851999-10-0808 October 1999 Informs of Staff Determination That Listed Calculations Should Be Withheld from Public Disclosure,Per 10CFR2.790, as Requested in 990909 Affidavit ML20211J7731999-08-31031 August 1999 Forwards Insp Rept 50-312/99-03 on 990802-06.No Violations Noted.Insp Included Decommissioning & Dismantlement Activities,Verification of Compliance with Selected TS & Review of Completed SEs ML20211H7481999-08-13013 August 1999 Forwards Amend 126 to License DPR-54 & Safety Evaluation. Amend Changes Permanently Defueled Technical Specification (PDTS) D3/4.1, Spent Fuel Pool Level, to Replace Specific Reference to SFP Level Alarm Switches with Generic Ref ML20207E9181999-05-27027 May 1999 Informs That Effective 990328,NRR Underwent Reorganization. within Framework of Reorganization,Div of Licensing Project Mgt Created.Reorganization Chart Encl ML20206U7411999-05-18018 May 1999 Provides Summary of 990217-18 Visit to Rancho Seco Facility to Become Familar with Facility,Including Onsite ISFSI & Meeting with Representatives of Smud to Discuss Issues Re Revised Rancho Seco Ep,Submitted to NRC on 960429 ML20204H6751999-03-19019 March 1999 Forwards Insp Rept 50-312/99-02 on 990309-11.No Violations Noted.Portions of Physical Security & Access Authorization Programs Were Inspected ML20207L1711999-03-10010 March 1999 Informs of Staff Determination That Supporting Calculations & Drawings Contained in Rev 2 of Sar, Should Be Withheld from Public Disclosure,Per 10CFR2.790 ML20203D0761999-02-10010 February 1999 Ltr Contract:Task Order 37 Entitled, Technical Assistance in Review of New Safety Analysis Rept for Rancho Seco Spent Fuel Storage Facility, Under Contract NRC-02-95-003 ML20237A6031998-08-0707 August 1998 Forwards Insp Rept 50-312/98-03 on 980706-09.No Violations Noted ML20236Q9461998-07-15015 July 1998 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Rept 50-312/98-02 ML20236E8211998-06-0303 June 1998 Forwards Insp Rept 50-312/98-02 on 980519-21 & NOV Re Failure to Review & Consider All Info Obtained During Background Investigation.Areas Examined During Insp Also Included Portions of Physical Security Program IR 05000312/19980011998-03-25025 March 1998 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Rept 50-312/98-01 on 980205 ML20202C4641998-02-0505 February 1998 Forwards Insp Rept 50-312/98-01 on 980105-08 & Notice of Violation.Insp Included Decommissioning & Dismantlement Work Underway,Verification of Compliance W/Selected TS & Main & Surveillance Activities Associated W/Sfp ML20198K5391997-10-21021 October 1997 Forwards Insp Rept 50-312/97-04 on 970922-25 & Notice of Violation.Response Required & Will Be Used to Determine If Further Action Will Be Necessary ML20198G8141997-08-22022 August 1997 Forwards Amend 125 to License DPR-54 & Safety Evaluation. Amend Permits Smud to Change TS to Incorporate Revised 10CFR20.Amend Also Revises References from NRC Region V to NRC Region IV ML20149E5031997-07-10010 July 1997 Second Partial Response to FOIA Request for Documents. Forwards Records Listed in App C Being Made Available in Pdr.Records in App D Already Available in PDR ML20148P5161997-06-30030 June 1997 Second Partial Response to FOIA Request for Documents.App B Records Being Made Available in PDR ML20141A1721997-06-17017 June 1997 Forwards Insp Rept 50-312/97-03 on 970603-05.No Violations Noted.Areas Examined During Insp Included Portions of Physical Security Program ML20140G6341997-05-0707 May 1997 Forwards ERDS Implementation Documents Including Data Point Library Updates for McGuire Number 224,WNP2 Number 225, Beaver Valley Number 226 & Calvert Cliffs Number 227. W/O Encl ML20140E6911997-04-25025 April 1997 Forwards Insp Rept 50-312/97-02 on 970331-0403.No Violations Noted ML20137C7211997-03-21021 March 1997 Forwards Insp Repts 50-312/97-01 & 72-0011/97-01 on 970224-27.No Violations Noted ML20129G7431996-09-27027 September 1996 Forwards Insp Repts 50-312/96-03 & 72-0011/96-01 on 960909-12.No Violations Observed ML20059J9771994-01-14014 January 1994 Informs That Document Rancho Seco ISFSI Sar,Vol Iv,Drawings & Calculations Submitted on 931027,w/Pacific Nuclear Fuel Services Group Affidavit of 931006 Will Be Withheld from Public Disclosure,Per 10CFR2.790(b)(5),as Requested ML20058D6291993-11-19019 November 1993 Forwards Exemption from Requirements of 10CFR140.11(a)(4) to Extent That Primary Financial Protection in Stated Amount Shall Be Maintained ML20058C9721993-11-0202 November 1993 Ack Receipt of Transmitting Rev 6 of Section 5 to Plant Emergency Plan.Advises Revised Emergency Plan Continues to Meet Planning Stds in 10CFR50.47(b) & Requirements of 10CFR50 App E ML20057D1841993-09-27027 September 1993 Grants Exemption from Requirements in 10CFR50.120 to Establish,Implement,& Maintain Training Programs,Using Sys Approach to Training,For Categories of Personnel Listed in 10CFR50.120.Exemption Effective 931122 & Encl IR 05000312/19930031993-09-24024 September 1993 Ack Receipt of Informing NRC of Steps Taken to Correct Violations Noted in Insp Rept 50-312/93-03 ML20057C4971993-09-0202 September 1993 Forwards Insp Rept 50-312/93-06 on 930819.No Violations or Deviations Noted ML20057A3251993-09-0202 September 1993 Forwards Environmental Assessment & Fonsi Re Exemption from Requirements of 10CFR50.120 at Plant ML20056F0011993-08-11011 August 1993 Forwards Mgt Meeting Rept 50-312/93-04 on 930727 ML20056G0041993-06-25025 June 1993 Submits Info Re Implementation of Training Rule 10CFR50.120 for Licensees of Plant in Decommissioning Process ML20127D3451993-01-0808 January 1993 Advises That 921105 Rev 3 to Rancho Seco Security Training & Qualification Plan Consistent W/Provisions of 10CFR50.54(p) & Acceptable for Inclusion Into Plan ML20127D3351993-01-0606 January 1993 Ack Receipt of 921105 & 30 Ltrs,Transmitting Rev 6 & Suppl 1 to Physical Security Plan.Changes Consistent W/Provisions of 10CFR50.54(p) & Acceptable for Inclusion Into Plan ML20126E2751992-12-10010 December 1992 Forwards Insp Rept 50-312/92-07 on 921110-11.No Deviations or Violations Noted ML20062G9951990-11-15015 November 1990 Forwards Insp Rept 50-312/90-14 on 901003-04,09-11 & 1102. Violations Noted But Not Cited ML20062C1921990-10-24024 October 1990 Advises That Commissioner Jr Curtiss Will Visit Facility on 901105 to Tour Plant & Meet W/Util Mgt & Personnel to Review General Status of Activities.W/Certificate of Svc.Served on 901024 ML20058G4471990-10-18018 October 1990 Forwards Sept 1990 Rept to Commission on Implementation of TMI Action Plan Items,Per 900320 Commitment.W/O Encl.Review Concluded for All But Two Units ML20059N3331990-10-0202 October 1990 Forwards Notice of Consideration of Issuance of Amend to OL & Proposed NSHC Re 900426 Application for Possession Only License ML20059M6871990-09-14014 September 1990 Forwards Notice of Consideration of Issuance of Amend & Proposed NSHC Re Plant Physical Security Plan for Long Term Defueled Condition ML20059G9421990-09-10010 September 1990 Forwards Amend 115 to License DPR-54 & Safety Evaluation. Amend Revises License Condition Re Fire Protection Plan,Adds Administrative Controls to Tech Specs in Support of Fire Protection Plan & Relocates Fire Protection Requirements ML20056B4621990-08-22022 August 1990 Forwards Environ Assessment & Finding of No Significant Impact Re 900724 Request for Exemption to 10CFR50.47 ML20056A5991990-08-0303 August 1990 Responds to Re Interaction of NRC W/Util to Facilitate Expeditious Closure of Plant.Nrc Continuing to Work Expeditiously on Number of Other Requests from Util. Prioritization Schedule Developed for Pending Applications ML20058N6461990-07-31031 July 1990 Forwards Insp Rept 50-312/90-11 on 900527-0706.No Violations Indentified ML20055G9791990-07-20020 July 1990 Responds to Expressing Concern Re Issuance of Possession Only License Amend.Nrc Project Manager Will Notify by Telephone When Util Submits Application Matl for Possession Only License Amend ML20055E5151990-07-0303 July 1990 Requests Listed Addl Info on Licensee 900606 Plans Re Diesel Generator Operation as Peaking Power Supplies to Assure That Generators Will Be Maintained in Nondegraded Status IR 05000312/19900101990-07-0303 July 1990 Forwards Security Insp Rept 50-312/90-10 on 900611-22.No Violations Noted.Major Areas Inspected:Physical Protection. Rept Withheld (Ref 10CFR2.790 & 73.21) ML20055D5441990-06-28028 June 1990 Forwards Request for Addl Info Re 891129,900221 & 0327 Ltrs Concerning Computerized Commitment Tracking Sys,Long Range Scope List & Effluents & Water Mgt Project Action Plan Items Needing Deferral ML20058K5791990-05-22022 May 1990 Final Response to FOIA Request for Records.App G & H Records Available in Pdr.App H & Releasable Portions of App J Documents Encl.App I Records Withheld in Entirety & App J Record Partially Withheld (Ref FOIA Exemptions 5 & 7) ML20055D6511990-05-10010 May 1990 Partial Response to FOIA Request for Info.App D & Releasable Portions of App E Documents Encl.Portions of App E Documents & App F Documents Withheld (Ref FOIA Exemptions 5,6 & 7) 1999-08-31
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Text
m __ _- . - - - . _. . . _ _ - _ _ _ . - ---
pD b oIb UNITED STATES
[km #fC jo NUCLEAR REGULATORY COMMISSION
! g W ASWN G TON. D. C. 20555
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%*****4 MNf 7 E86 Ms. Elly: J. Weiss Harmon and Weiss 2001 S Street, NW, Suite 430 IN RESPONSE REFER Washington, DC 20009-1125 TO FOIA-86-290
Dear Ms. Weiss:
This is in regard to your request, pursuant to the Freedom of information Act, to which the NRC assigned the above number.
X This is a partial response to your request. We will notify you upon completion of search for and review of any additional records subject to your request.
The staff has completed the search for and review of records subject to your request, and this is the final response to your request.
The NRC has no records subject to your request.
Records subject to your request are available for public inspection and copying at the NRC Public Document Room c (PDR), 1717 H Street, NW, Washington, DC 20555, as noted on the enclosure (s). The PDR accession number is identified beside each record description.
_X__ Records subject to your request are being made available for public inspection and copying at the NRC Public Document Room (PDR), 1717 H Street, NW , Washington, DC i 20555, in the PDR file folder under the above number and I your name.
These records are listed on the enclosure (s). l We are enclosing a notice that provides information about charges and procedures for obtaining records from the PDR.
Sincerely,
&$ . )
Donnie H. Grimsley, Director Division of Rules and Records Office of Administration Enclosure (s): As stated 8606020096 860507 PDR FOIA WEISS86-290 PDR
1 l
i F01A-86-290 Appendix A i
- 1. 03/13/86 Letter to Tucker from Crutchfield re: B&W Design Reexamination I w/ enclosure (7 pgs.)
- 2. 04/25/86 Memo for Stello from Denton, re: Staff Actions Resulting from the Investigation of the December 26, 1985 Incident at Rancho Seco (NUREG-1195) w/ enclosures (11 pgs.)
, a
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'o UNITED STATES
~
E' 't NUCLEAR REGULATORY COMMISSION 3 . ,I wassmarow. o. c. nosss March 13,1986 Mr. Hal Tucker, Chairman Babcock & Wilcox Owners Group r Duke Power Company 3~
Post Office 80x 33189 Charlotte, North Carolina ~ 28242 ,
Dear Mr. Tucker:
SUBJECT:
B&W DESIGN REEXAMINATION In Mr. Stello's letter to you of January 24, 1986, he indicated that there is
' a need to reexamine the basic design for B&W reactors. On February 5,1986, the staff met with the B&WOG. Part of this meeting dealt with the Owners Group's response to the January 24, 1986 letter. You indicated that it is -
logical for the Owners Group to serve in a leadership role in resolving the NRC's concern. You also indicated that the Owners Group is willing to work - 5 with the NRC on this program. On February 13, 1986, you provided your response to the January 24, 1986 letter. In that response, you noted that the Owners
- Group would take the lead in a planned effort to define concerns related to the frequency of reactor trips and the complexity of the post-trip responses in B&W plants. You noted that such a plan would be available to be discussed with the staff during the first week of April. You also noted that the Owners Group f
intends to work interactively with the staff on this plan. .
The staff has prepared a plan that includes those items that the staff believes are necessary to carry out the reexamination. A copy of the staff's plin ic i
' enclosed and has been given to Mr. Taylor of Babcock and Wilcox. Identified in the plan are those items that we expect the Owners Group would take the lead in or play a major role in completing. Those itens that the Owners Group are not doing, such as a comparison with other PVPs, will be handled by the staff.
We intend to meet with the Owners Group in April to discuss their plans.
As a result, there could be changes in our plan.
. Since' rely,
, c,i ns v , o W4 '
i y " _
r _ , 9 l
' M.
nn s M. Crutchf el , s st nt Director
!- for Technical Suppor i Division of PWR Licensing-B
Enclosure:
As stated .
l 1
l 8/
ENCLOSURE 1 NRC REASSESSMENT PROGRAM -
INTRODUCTION Since the THI-2 accident,-there has been a growing realization of the sensitivity of Babcock and Wilcox (B&W) plants to operational transients. By letter dated January 24, 1986, the Acting EDO infonned the Chairman of the Babcock and Wilcox Owners Group (B&WOG) that a number of recent events at B&W designed reactors lead us to conclude that there is a need to re-examine the basic design requirements for B&W reactors.
This Task Action Plan outlines the scope that the staff believes is needed to
' accomplish the reassessment. NRR has been assigned the responsibility to provide overall direction of thst effort with support from the Regions and all appropriate NRC offices. It is likely that the B&WOG will play a major role in carrying out a large part of this reassessment but that there will be areas that the staff feels need to be evaluated, that the Owners Group will not be doing. ,
~1. OBJECTIVE '
g The overall objective of the generic evaluation is to reassess the basic design requirements and operational characteristics of the B&W nuclear reactors. Also, the study will compare the overall safety of the B&W reactors to other PWRs.
- 2. DISCUSSION To achieve th.e objectives discussed above, a Task Action ~ Plan has been developed that includes both deterministic and probabilistic assessments, an integrated evaluation to identify potential improvements to reduce the frequency and complexity of anticipated operational transients, and thereby improve the overall safety of the B&W reactor, and identification of potential revised licensing criteria. D. Crutchfield, Assistant Director for Technical Support. Division of PWR Licensing-8, NRR has been designated as the senior staff manager responsible for this program. Enclosure 1 lists the Regional and appropriate Office contacts.
Figure I shows the major tasks and the interfaces between tasks.
An overview of the tasks shown in Figure 1 is discussed in the following pa ragraphs.
- 3. SCOPE AND CONTENT OF TASKS The study and required information will be based on the following B&W designed plants for which utilities hold operating licenses:
Arkansas Nuclear One, Unit 1 (ANO-1) - (Arkansas Power & Light Company)
Crystal River, Unit 3 - (Florida Power Corporation)
Davis-Besse, Unit 1 - (Toledo Edison Company) '
Oconee, Units 1, 2 and 3 - (Duke Power Company)
Rancho Seco, Unit 1 - (Sacramento Municipal Utility District)
Three Mile Island, Units 1 and 2 (Metropolitan Edison Company)
L
The main foc'us of the study will be the generic assessment of 88W designed reactors and the identification of potential improvements as related to reducing the frequency and severity of anticipated operational occurrences, and thereby improve the overall safety of the B&W reactors. In addition, representative Combustion Engineering (CE) and Westinghouse (W) PWR designs will be selected and compared with the B&W PWR design to assess the relative plant O namic behavior that would result when confronted with similar anticipated operational occurrences, as well as their overall safety.
In general Tasks 3.1 through 3.11 involve a spectrum of assessments, each of which should identify potential system, human factors, operations or analysis improvements aimed at increasing the perceived level of safety of the B&W reactors. Task 3.12 perfoms an integrated evaluation of all these improvements, without regard to cost / benefit judgements. Ta'sks identified with an asterisk are those where the owner's Group is likely to take a lead or play a major role in completing.
3.1 Review Operating Events (*) , .
This activity will consist of the re-review of past B&W operational occurrences.
The intent of this effort is to look at these events as a set of operational experiences that may indicate comon problems, deficiencies, or system weaknesses. The review should include, but should not be limited to, the applicable Licensfe Event Reports (LERs), Inspection and Enforcement (IE)
Bulletins, Circulars and Notices and other information involving anticipated operational occurrences and related failures at each of the operating B&W plants, and for other PWR vendor plants. Existing compilations of data will be used where possible. This information will be input to Item 3.3, below. ,
3.2 Identify Problems, Root Causes, and Sensitive Systems (*)
The results of the review of B&W operating reactor events will be used to identify problem areas, complications during the events, root causes and sensitive. systems. This review should also identify any humn factnr(
problems _ including operator errors 3.. procedural defict6s or control room inadequacies 7=The-reviaws should rely, to the maximum extent possible, on existing reviews (i.e., industry BWOG, NRC).
During this review, special attention should be given to the individual items to detemine if the particular problem is within the plant's licensing basis.
This determination will be used in later assessments. i Once the set of problems, root causes and sensitive systems is determined, the degree that these items would be the same for Westinghouse or CE reactors should be determined. Similarly, this detemination should rely to the maximum extent pussible, on existing reviews. Where reviews do not exist, the assessment should rely on engineering judgements as opposed to a detailed review of other NSSS reactor's experience.
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- Tasks identified with an asterisk are those where the Owner's Group is likely to play a major role in completing.
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., ~ 3.3 Obtain B&W Plant-Specific Design Information (*)
The objectives of this task are.to: (1) assemble B&W plant system infomation (e.g., EFIC, SFRCS, AFW, valve positions on loss of ICS power, etc.), and (2) compile and compare operating B&W plant features. The inforination obtained from Item 3.2 above should be used as guidance in defining system information to be gathered. '
3.4 Compile and Assess' Previous Staff Reviews of Anticipated Operational Occurrences and the Status of Implementation (*)
The objectives of this task are to: (1) compile the results of previous reviews i
- of B&W operational occurrences, an0 (2) suunarize the status of the implemen-l tation of modifications at each B&W plant resulting from the requirements /
reconsnendations developed during the previous reviews. Reviews of events beginning with the March 20, 1978 Rancho Seco' " light bulb" event should be considered. '
A detailed list of those events to be reviewed should be developed at the beginning of this task by the lead organization.
3.5 Review Existing Plant Probabilistic Risk Assessment (*)
The objective of this task is to assemble and review existing PRA's that have been perfomed 'for B&W plants and other PWR facilities. An assessment of the input data should be performed to verify that it is consistent with actual B&W data. '
3.6 Assess B&W PRA's ,
The objectives of this task are to: (1) assess the probability of core melt i
at B&W plants considering observed operating events, and (2) compare core melt probability among the B&W plants. B&W plant-specific probabilities should be
- used in the evaluations. Existing plant PRA's (e.g., Midland, Oconee) should be !
used as tools in developing the task objectives. .
3.7 Compare B&W and Other PWR PRA's The objective'of this task is to make a limited comparison of the core melt probability at B&W plants with other PWRs using the results of the PRAs. i 3.8 Perform System Analyses and Sensitivity Checks Against Current Criteria (*)
This task will analyze the plant behavior when it is confronted with postulated failures and perturbations. Sensitivity checks will be included in the analysis i to establish the plant response boundaries and margins. Current' licensing criteria will be used in the analyses. For example, in addition to the assumed i initiating event, single failures of active components and the effect of loss-of-offsite power would be considered. Some of the events and their postulated consequences that should be included are as follows:
- Tasks identified with an asterisk are those where tne Owner's Group is likely to play a major role in completing.
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Loss of normal feedwater Ove'rcooling followed by repressurization Undercooling Steam generator overfill ~
Turbine trip Loss of offsite power PORY or code safety reifef valve open Steam generator tube failure 2
Small break LOCA 5
Steam line break spurious signal initiation -
s Pressure temperature limit correlations A B&W plant which includes design features, configurations, and capacities that resemble the majority of the B&W plants will be selected as the model for the systems analysis and sensitivity checks. Results of this effort will be applied to the other B&W plants recognizing the plant differences. .
The same approach for analyzing behavior in 88W plants will be followed during the performance of this task for other vendor plants, except that the plant-
, specific information data base is limited to selected designs and features.
3.9 Evaluate Margins and Sensitivities Bey 6nd Regulatory Objectives i
This element of the study will determine, based on the identified problems, root causes and sensitive systems, the margins available beyond the classical limits when scenarios beyond the Standard Review Plan type events are encountered. This assessment will only consider scenarios that are pertinent to the items identified in Task 3.6. For example, this tasks may involve questions regarding how adequately the B&W plants can manage a total loss of feedwater event.
, Questions regarding dultiple failures, consequential equipment malfunctions, operator errors of commission, as well as omission, will be considered., The !
evaluations should determine: 1 i
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, 1. The prohimity to a regulatory limit, .
- 2. The availability of, systems and components to provide mitigation.
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The information (i.e., procedures, training, and control room instrumentation) available to the operators, and
- 4. The time frames within which the operator must act to keep the event under control.
3.10 Identify Additional Safety Concerns The main thrust of this element of .the study effort is to address concerns that do not readily fall into a particular regulatory area. This element is aimed at describing opnational.Jtuman factors dyitem_or_o.thtr concerns that arise in the course of the review of the operational events. For example, in the ;
course of the review of events at B&W reactors, it is apparent that for a given '
relatively benign loss of feedwater transient, a number of safety systems are, J challenged. A review of a similar initiating' event on a CE or W plant reveals l a lesser challenge to safety systems. Although there are no regulatory limits that restrict reliance on safety systems to particular scenarios, the response of the B&W plant systems has become a concern in the engineering judgment of a number of analysts, i 3.11 Regional Operations Experience Feedback .
1 This task is aimed at utilizing the experience, judgements and concerns coming '
from the NRC's Regional staff, particularly the Resident Inspectors. These I individuals hoe extensive first-hand knowledge of B&W reactor operations, l procedures and design-related deficiencies that must weigh in the NRC's overall I evaluation of the adequacy of the B&W plants.
The views of present and former Senior Resident Inspectors having experience at B&W' reactors should be especially sought. Also, I&E training staff should be involved in this effort since their hands-on experience is invaluable.
A series of Region-based meetings may be the most efficient manner to obtain this information.
3.12 Integrated Assessment to Identify Plant Alternative Improvements This phase of the effort involves a unified assessment of all the recomendations, conclusions and suggestions coming from the above described tasks. Since this could obviously involve a great deal of quantitative and qualitative infonnation, the team should attempt to first organize the various items into sets or groups.
Then, once into groups, the various items should be given a relative priority based on their perceived safety importance. Some possible groups are:
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- 1. Items tha.t are needed in the plant to meet current regulatory requirements.-
- 2. Items that are not necessarily needed for regulatory confonnance, but are needed forf, reducing the plant's susceptability or severe response to transients.
. 3. Items that improve the operator's ability to manage transients, and
- 4. Items that result in B&W plant transient response being comparable to other NSSS transient response. ,
This phase of the overall effort should not consider the relative costs / benefits of the various recomendations. The items should be considered only in accordance with their perceived safety importance.
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