ML19318A899
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| ML19318A899 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 06/18/1980 |
| From: | Gaschler J PUBLIC SERVICE CO. OF COLORADO |
| To: | |
| References | |
| NUDOCS 8006240335 | |
| Download: ML19318A899 (1) | |
Similar Documents at Fort Saint Vrain | |
|---|---|
Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO
MONTHYEARML19338C4441980-08-11011 August 1980
[Table view]Ro:On 800804,radioactivity Released in Reactor Bldg.Caused by Helium Circulator Sys Malfunction.Employee Safety Not Jeopardized,Atmospheric Release Negligible & Public Not in Danger ML19318A8991980-06-18018 June 1980 Ro:On 800501 & 0617,minute Releases of Radioactivity Occurred in Reactor Bldg.Caused by Malfunction in Helium Circulator Sys.No Radiation Was Released Into Atmosphere. Public & Personnel Health & Safety Were Not Jeopardized ML19225A2211979-07-12012 July 1979 RO 50-267/77-17(14)1,final on 770506:during Plant Startup at 15% Power,Incorrect Feedwater Flow Trip Existed in 1 of 2 Plant Protective Sys Logics.Caused by Logic Chip Failure in Circular Trip Module CT-2B2 ML19225A1181979-07-12012 July 1979 RO 50-267/76-19A on 760617:while Reactor Was in Shutdown Condition,One Steam Water Dump Valve in Each Loop Opened. Caused by Design Problem.Failure Modes & Effects Analyzed & Steam Water Dump Circuits Revised ML19224D5841979-07-0303 July 1979 RO 50-26/79-13/03-L-0 on 790412:365 Hydraulic Snubbers Found to Be Inoperable During First Functional Test,Causing Both Unacceptable Lockup & Bleed Characteristics.Caused by Setpoint Drift,Dirty Oil & Clogged Valves.All Repaired ML20052F1261976-06-14014 June 1976 Ro:On 760521,discrepancies Found in Seismic Certifications for Equipment,Instruments & Components & in Application of Certain Components Required to Meet Seismic Conditions. Caused by Misinterpretation of FSAR Requirements 1980-08-11 Category:LER) MONTHYEARML19338C4441980-08-11011 August 1980
[Table view]Ro:On 800804,radioactivity Released in Reactor Bldg.Caused by Helium Circulator Sys Malfunction.Employee Safety Not Jeopardized,Atmospheric Release Negligible & Public Not in Danger ML19318A8991980-06-18018 June 1980 Ro:On 800501 & 0617,minute Releases of Radioactivity Occurred in Reactor Bldg.Caused by Malfunction in Helium Circulator Sys.No Radiation Was Released Into Atmosphere. Public & Personnel Health & Safety Were Not Jeopardized ML19225A2211979-07-12012 July 1979 RO 50-267/77-17(14)1,final on 770506:during Plant Startup at 15% Power,Incorrect Feedwater Flow Trip Existed in 1 of 2 Plant Protective Sys Logics.Caused by Logic Chip Failure in Circular Trip Module CT-2B2 ML19225A1181979-07-12012 July 1979 RO 50-267/76-19A on 760617:while Reactor Was in Shutdown Condition,One Steam Water Dump Valve in Each Loop Opened. Caused by Design Problem.Failure Modes & Effects Analyzed & Steam Water Dump Circuits Revised ML19224D5841979-07-0303 July 1979 RO 50-26/79-13/03-L-0 on 790412:365 Hydraulic Snubbers Found to Be Inoperable During First Functional Test,Causing Both Unacceptable Lockup & Bleed Characteristics.Caused by Setpoint Drift,Dirty Oil & Clogged Valves.All Repaired ML20052F1261976-06-14014 June 1976 Ro:On 760521,discrepancies Found in Seismic Certifications for Equipment,Instruments & Components & in Application of Certain Components Required to Meet Seismic Conditions. Caused by Misinterpretation of FSAR Requirements 1980-08-11 Category:TEXT-SAFETY REPORT MONTHYEARML20196G6731997-07-0101 July 1997
[Table view]Informs Commission That Decommissioning Process Has Been Completed at PSC of Colorado Fsvngs,Unit 1 Located in Town of Platteville in Weld County,Co ML20141K9961997-05-0505 May 1997 Safety Evaluation Supporting Amend 89 to License DPR-34 ML20140E1121997-04-10010 April 1997 Confirmatory Survey of Group Effluent Discharge Pathway Areas for Fsv Nuclear Station,Platteville,Co ML20134D1661997-01-30030 January 1997 Rev 1,Vol 6 to Final Survey Rept,Final Survey of Group E (Book 2A of 2) ML20137S6111996-12-31031 December 1996 Annual Rept Pursuant to Section 13 or 15(d) of Securities Exchange Act 1934, for Fy Ended Dec 1996 ML20134G6401996-10-29029 October 1996 Rev 0,Volume 6,Books 1 & 2 of 2 to Final Survey of Group E ML20134G6171996-10-29029 October 1996 Rev 2,Volume 1,Books 1 & 2 of 2 to Final Survey Description & Results ML20134G7271996-10-29029 October 1996 Rev 0,Volume 11,Book 1 of 1 to Final Survey of Group J ML20134G6861996-10-29029 October 1996 Rev 0,Volume 8,Books 1 & 2 of 2 to, Final Survey of Group G ML20134G6321996-10-26026 October 1996 Rev 1,Volume 5,Books 2 & 3 of 3 to Final Survey of Group D ML20133D7831996-10-22022 October 1996 Preliminary Rept - Orise Support of NRC License Insp at Fsv on 960930-1003 ML20116A4661996-07-19019 July 1996 Fsv Final Survey Exposure Rate Measurements ML20112J6861996-05-31031 May 1996 June 1996 Quarterly 10CFR50.59 Rept of Changes,Tests & Experiments for Fsv Decommissioning.Rept Covers Period of 960216-0531 ML20112C1531996-05-17017 May 1996 Fsv Final Survey Exposure Rate Measurements ML20101G5521996-03-21021 March 1996 Confirmatory Survey Activities for Fsv Nuclear Station PSC Platteville,Co, Final Rept ML20097E3201996-01-31031 January 1996 Nonproprietary Fort St Vrain Technical Basis Documents for Piping Survey Instrumentation ML20095K4131995-12-26026 December 1995 Rev 3 to Decommissioning Plan ML20095H7211995-12-20020 December 1995 Revs to Fort St Vrain Decommissioning Fire Protection Plan Update ML20095K9751995-12-15015 December 1995 Fort St Vrain Project Update Presentation to NRC, on 951207 & 15 ML20096C1671995-12-13013 December 1995 Rev 4 to Decommissioning Fire Protection Plan ML20094M1651995-11-30030 November 1995 Nonproprietary Fsv Technical Basis Documents for Piping Survey Implementation ML20092F3461995-09-14014 September 1995 Quarterly 10CFR50.59 Rept of Changes,Tests & Experiments for Fsv Decommissioning, Covering Period of 950516-0815.W/ ML20137H3531994-12-31031 December 1994 Partially Withheld, Rept of Independent Counsel Investigation Concerning Issues at Fort St Vrain Nuclear Generating Station Decommissioning Project, App D,Comments by Mkf & Westinghouse Team & Responses ML20137S2331994-12-31031 December 1994 Rept of Independent Counsel Investigation Concerning Issues at Fort St Vrain Nuclear Generating Station Decommissioning Project, Dec 1994 ML20029C6031993-12-31031 December 1993 1993 Annual Rept Public Svc Co of Colorado. W/940405 Ltr ML20058Q3791993-12-21021 December 1993 Rev 1 to Decommissioning Plan for Fort St Vrain Nuclear Generating Station ML20045B3641993-06-30030 June 1993 June 1993 Quarterly 10CFR50.59 Rept of Changes,Tests & Experiments for Fsv Decommissioning. ML20045A4291993-06-0303 June 1993 LER 93-003-00:on 930505,new Source of Natural Gas Introduced within 0.5 Miles of ISFSI & Reactor Bldg W/O Prior NRC Approval.Caused by Field Routing of Natural Gas Pipe.Well Isolated by Well operator.W/930603 Ltr ML20077D1631993-05-10010 May 1993 Enforcement Conference, in Arlington,Tx ML20125C7161992-12-0707 December 1992 Part 21 Rept Re Possibility for Malfunction of Declutching Mechanisms in SMB/SB-000 & SMB/SB/SBD-00 Actuators. Malfunction Only Occurs During Seismic Event.Balanced Levers May Be Purchased from Vendor.List of Affected Utils Encl ML20128D7191992-12-0101 December 1992 Safety Evaluation Approving Exemption from Requirement of 10CFR50.54(q) to Change to Biennial Emergency Plan Exercise Rather than Annual Following Completion of Next Scheduled Exercise at Plant ML20127P5861992-11-23023 November 1992 Followup to 921005 Part 21 Rept Re Potential Defect in SB/SBD-1 Housing Cover Screws.Procedure Re Replacement of SBD-1 Spring Cover Bolts Encl.All Fasteners Should Be Loosened & Removed.List of Affected Utils Encl ML20127F5691992-11-0303 November 1992 Informs Commission of Intent to Issue Order Approving Plant Decommissioning Plan & Corresponding Amend to License DPR-34 ML20101E5761992-05-31031 May 1992 Monthly Defueling Operations Rept for May 1992 for Fort St Vrain ML20096E8221992-04-30030 April 1992 Monthly Operating Rept for Apr 1992 for Fort St Vrain.W/ ML20095E9601992-04-17017 April 1992 Rev to Fort St Vrain Proposed Decommissioning Plan ML20100R7431992-03-31031 March 1992 Monthly Operating Rept for Mar 1992 for Fort St Vrain.W/ ML20090L0621992-02-29029 February 1992 Monthly Operating Rept for Feb 1992 for Fort St Vrain Unit 1 ML20092D0081992-01-31031 January 1992 Monthly Operating Rept for Jan 1992 for Fort St Vrain Nuclear Generating Station ML20102B2241992-01-22022 January 1992 Fort St Vrain Station Annual Rept of Changes,Tests & Experiments Not Requiring Prior Commission Approval Per 10CFR50.59, for Period 910123-920122 ML20094N6701991-12-31031 December 1991 Public Svc Co Annual Financial Rept for 1991 ML20091J6251991-12-31031 December 1991 Monthly Operating Rept for Dec 1991 for Fort St Vrain.W/ ML20094D6711991-11-30030 November 1991 Monthly Operating Rept for Nov 1991 for Fort St Vrain Unit 1 ML20090M1871991-11-20020 November 1991 FOSAVEX-91 Scenario for 1991 Plant Exercise of Defueling Emergency Response Plan ML20086D6891991-11-15015 November 1991 Proposed Decommissioning Plan for Fort St Vrain Nuclear Generating Station ML20085N1451991-11-0505 November 1991 Revised Ro:Operability Date of 910830 for Electric Motor Driven Fire Water Pump P-4501 Not Met.Pump Not Actually Declared Operable Until 911025.Caused by Unforseen Matl & Testing Problems.Equivalent Pump Available ML20086C5451991-10-31031 October 1991 Monthly Operating Rept for Oct 1991 for Fort St Vrain.W/ ML20085H6611991-10-10010 October 1991 Assessment of Mgt Modes for Graphite from Reactor Decommissioning ML20091D7671991-10-0101 October 1991 Rev B to Engineering Evaluation of Prestressed Concrete Reactor Vessel & Core Support Floor Structures for Proposed Sys 46 Temp Change ML20085D9861991-09-30030 September 1991 Monthly Operating Rept for Sept 1991 for Fort St Vrain.W/ 1997-07-01 |
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Pubue service company oe conomeo P.O.80X 840 OENVER. COLORADO 80201 l
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Mr. Jerome Saltzman, Chief Antitrust & Indemnity Group Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Re Docket No. 50-267, 70, 1278
Dear Mr. Saltzman:
This is to report two similar incidents which occurred at our Ft. St. Vrain Station on May 1 and June 17, 1980.
- Due to a malfunction in the helium circulator system, there was a minute release of radioactivty in the reactor building. The safety of the employees was not jeopard:.ted and there was no radiation released into tne atmosphere. At no time was there any hazard to the public.
Very truly yours, c MY'u J. A. Gaschler Risk Management Director JAG:ss l
l Dool 5
iO 800624033 p
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