Letter Sequence Approval |
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Results
Other: 05000267/LER-1983-043-01, /01T-0:on 831011,during Spec LCO 4.1.9 Review, Assumptions Supporting Analysis Discovered Nonconservative, Obviating Basis for Spec.Interim Conservative Guidelines Followed Until Analysis Completed, ML20082A843, ML20082S949, ML20083F063, ML20084J011, ML20091E302, ML20095A385, ML20125D934, ML20202E952, ML20212G878, ML20214W452, ML20216H730, ML20236U722, ML20237E005
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MONTHYEAR05000267/LER-1983-043-01, /01T-0:on 831011,during Spec LCO 4.1.9 Review, Assumptions Supporting Analysis Discovered Nonconservative, Obviating Basis for Spec.Interim Conservative Guidelines Followed Until Analysis Completed1983-10-25025 October 1983 /01T-0:on 831011,during Spec LCO 4.1.9 Review, Assumptions Supporting Analysis Discovered Nonconservative, Obviating Basis for Spec.Interim Conservative Guidelines Followed Until Analysis Completed Project stage: Other ML20082A8431983-11-0707 November 1983 RO 83-43:on 831011,util Notified NRC of Various Nonconservative Errors Made in Original Analyses Which Constitute Basis of Tech Spec 4.1.9.GA Technologies Provided Interim Curves Which Corrected Deficiencies Project stage: Other ML20082S9491983-11-30030 November 1983 Forwards Figure for Limiting Condition for Operation 4.1.9-1 Re Circulation Flow/Core Power,To Replace Figure Submitted w/831107 Ltr.Portions of Less Conservative Figure Deleted. Limit Will Be Observed Until Tech Spec Changed Project stage: Other ML20083F0631983-12-15015 December 1983 Proposed Tech Specs Revising Limiting Condition for Operation 4.1.9 Re Core Region Temp Rise Project stage: Other ML20083F0611983-12-15015 December 1983 Application for Amend to License DPR-34,revising Tech Spec Limiting Condition for Operation 4.1.9 Re Core Region Temp Rise,Per Previous Commitments.Class III Amend Fee Encl Project stage: Request ML20086R7281984-02-24024 February 1984 Responds to Request for Addl Info Re Proposed Amend to Limiting Condition for Operation 4.1.9 Re Average Core Temp During Shutdown Project stage: Request ML20084J0111984-04-0606 April 1984 ORNL Assistance in Evaluating Licensing Request - Fsv Limiting Condition for Operation 4.1.9, Monthly Rept for Mar 1984 Project stage: Other ML20091E3021984-05-0909 May 1984 Interim Rept on ORNL Assistance in Evaluating Licensing Request - Amend of Fort St Vrain Reactor Tech Spec Limiting Condition for Operation 4.1.9 Project stage: Other ML20095A3851984-08-14014 August 1984 Forwards Response to ORNL Concerns & Proposal Identified in NRC .Basis for Discussion of Ornl/Util Concerns & Resolution of Issues Delaying Implementation of Revised Limiting Condition for Operation 4.1.9 Discussed Project stage: Other ML20098H1721984-08-21021 August 1984 Provides Replies & Comments to Util Re Tech Spec Limiting Condition for Operation 4.1.9 in Advance of 840823 Meeting W/Util in Arlington,Tx Project stage: Meeting ML20099H7931984-11-20020 November 1984 Submits Addl Info Requested by NRC During 840823 Meeting Re Proposed Amend to Limiting Condition for Operation 4.1.9 Concerning Automated Orifice Valve Adjustments.Work Continuing on Listed Remaining Issues Project stage: Meeting ML20125D9341985-05-20020 May 1985 Submits Current Status of Work on Tech Spec Limiting Condition for Operation 4.1.9 Re Core Region Temp Rise. Calculational Differences Between Thermal/Hydraulic Analyses Being Investigated.Summary of Open Items Provided Project stage: Other ML20133K6751985-10-17017 October 1985 Notifies That Draft Proposed Rev to Tech Spec Limiting Condition for Operation 4.1.9 Re Core Region Temp Rise Will Be Submitted for Review by 851122 Project stage: Draft Other ML20137E4941985-11-22022 November 1985 Forwards Draft Rev to Tech Spec Limiting Condition for Operation 4.1.9 Re Min Helium Flow/Core Region Temp Rise for Review.Formal Request for Amend to License DPR-34 Will Be Submitted Upon Resolution of NRC Comments Project stage: Draft Request ML20141B7451986-03-28028 March 1986 Summary of 860313 Meeting W/Util in Arlington,Tx Re Tech Spec Limiting Condition for Operation 4.1.9 Covering Frequency of Manipulation of Reactor Controls.Supporting Documentation Encl Project stage: Meeting ML20211E9171986-06-13013 June 1986 Advises That Formal Application for Tech Spec Rev Re Limiting Condition for Operation 4.1.9, Min Helium Flow & Max Core Region Temp Rise, Will Be Submitted by 860703. Extension Required for Resolution of NRC 860606 Comments Project stage: Request ML20202E9261986-07-0909 July 1986 Forwards Application for Amend to License DPR-34,changing Tech Specs to Incorporate Min Helium Flow & Max Core Region Temp Rise Surveillance Requirements.Fee Paid Project stage: Request ML20202E9371986-07-0909 July 1986 Application for Amend to License DPR-34,changing Tech Specs to Incorporate Helium Flow & Max Core Region Temp Rise Surveillance Requirements Project stage: Request ML20202E9521986-07-0909 July 1986 Proposed Tech Specs,Incorporating Min Helium Flow & Max Core Region Temp Rise Surveillance Requirements Project stage: Other ML20214W4521986-10-16016 October 1986 Review of Proposed Tech Spec Change:Core Inlet Orifice Valves/Min Helium Flow & Max Core Region Temp Rise, Technical Evaluation Rept Project stage: Other ML20237E0051986-10-16016 October 1986 Forwards Final Version of Facility Limiting Condition for Operation 4.1.9 Technical Evaluation Rept for Review & Approval.Related Info Encl Project stage: Other ML20214W4361986-12-0505 December 1986 Forwards Review of Proposed Tech Spec Change:Core Inlet Orifice Valves/Min Helium Flow & Max Core Region Temp Rise. Requests Submittal Addressing Staff Concerns within 45 Days of Ltr Date Project stage: Approval ML20212G8781987-01-14014 January 1987 Advises That Util Will Submit Revised Proposal for Tech Spec 4.1.9 Re Min Helium Flow & Max Core Region Temp Rise by 870225.Util Finalizing Curves That Determine Allowed Outage Times for DHR Equipment for Inclusion in Tech Specs Project stage: Other ML20216J4731987-06-25025 June 1987 Forwards Application for Amend to License DPR-34,changing Tech Spec Limiting Condition for Operation 4.1.9 to Reduce Potential for Flow Stagnation & Prevent Excessive Fuel Temps in Core & Spec 5.1.8 to Incorporate Requirements.Fee Paid Project stage: Request ML20216H7301987-06-25025 June 1987 Proposed Tech Specs,Adding Definition of Calculated Bulk Core Temp & Core Average Inlet Temp for Determination of Core Temp Project stage: Other ML20216H7221987-06-25025 June 1987 Application for Amend to License DPR-34,changing Tech Spec Limiting Condition for Operation 4.1.9 to Reduce Potential for Flow Stagnation & Prevent Excessive Fuel Temps in Core & Spec 5.1.8 to Incorporate Associated Requirements Project stage: Request ML20236U7221987-08-0606 August 1987 Addendum to Review of Proposed Tech Spec Change:Core Inlet Valves/Min Helium Flow & Max Core Region Temp Rise, Limiting Conditon for Operation 4.1.9, Technical Evaluation Rept Project stage: Other ML20236U5041987-11-23023 November 1987 Forwards Amend 57 to License DPR-34 & Safety Evaluation. Amend Revises Tech Specs to Ensure Sufficient Helium Coolant Flow to Prevent Overheating of Fuel While in Low Power or Shutdown Modes Project stage: Approval 1985-10-17
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Docket No.'50'-267.
November.- 23, 1987 Mr. R.'O.' Williams, Jr.
4 Vice President, Nuclear Operations Public Service Company of Colorado Post Office Box 840 Denver,. Colorado-80201-0840
Dear Mr. Williams:
SUBJECT:
FORT ST. VRAIN NUCLEAR GENERATING STATION, AMENDMENT NO. 57 TO FACILITY OPERATING LICENSE NO. OPR-34 (TAC NO. 52634)
The Commission has issued the enclosed Amendment No. 57-to Facility Operating License No. DPR-34 for the Fort St. Vrain Nuclear Generating Station.
This amendment consists'of changes to the Technical Specifications (TS) in response to your application dated June 25,.1987 (P-87124).
This amendment revises the Technical Specifications to ensure sufficient helium coolant flow to prevent overheating of tFr feel while in the low power or shutdoi Hes.
The staff was assisted in this review by our contractor, Oak Ridge National Laboratory (ORNL).
ORNL wrote a Technica1 devaluation Report' (TER) concerning this amendment.
A copy of the Safety Evaluation with its attached ORNL TER is enclosed.
The.
Notice of-Issuance will be included in the Commission's next Bi-weekly Federal Register notice.
i Sincerely,}
i' 6
Kenneth L. Heitner, Project Manager Project Directorate - IV Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation
Enclosures:
1.
Amendment No. 57 to DPR-34 2.
Safety Evaluation
.cc w/ enclosures:
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p /23/87 8712030104 871123 PDR ADOCK 05000267.
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Mr. R. O. Williams, Jr.
Public Service Company of Colorado Fort St. Vrain cc:
Mr. D. W. Warembourg, Manager Albert J. Hazle, Director Nuclear Engineering Division Radiation Control Division Public Service Company Department of Health of Colorado 4210 East lith Avenue P. O. Box 840 Denver, Colorado 80220 Denver, Colorado 80201-0840 Mr. David Alberstein, 14/159A Mr. R. O. Williams, Jr., Acting Manager GA Technologies, Inc.
Nuclear Production Division Post Office Box 85608 Public Service Company of Colorado San Diego, California 92138 16805 Weld County Road 19-1/2 Platteville, Colorado 80651 Mr. H. L. Brey, Manager Nuclear Licensing and Fuel Division Mr. P. F. Tomlinson, Manager Public Service Company of Colorado Quality Assurance Division P. O. Box 840 Public Service Company of Colorado Denver, Colorado 80201-0840 16805 Weld County Road 19-1/2 Platteville, Colorado 80651 Senior Resident Inspector U.S. Nuclear Regulatory Commission Mr. R. F. Walker P. O. Box 640 Public Service Company of Colorado Platteville, Colorado 80651 Post Office Box 840 Denver, Colorado 80201-0840 Kelley, Stansfield & 0'Donnell Public Service Company Building Commitment Control Program Room 900 Coordinator 550 15th Street Public Service Company of Colorado Denver, Colorado 80202 2420 W. 26th Ave. Suite 100-D Denver, Colorado 80211 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Chairman, Board of County Commissioners of Weld County, Colorado
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Greeley, Colorado 80631 l
Regional Representative Radiation Programs Environmental Protection Agency 1 Denver Place 999 18th Street, Suite 1300 Denver, Colorado 80202-2413 l
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