Letter Sequence Other |
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Results
Other: 05000369/LER-1984-029, :on 841029,concentration of Nitrogen in Upper Head Injection Accumulator Exceeded Tech Spec Limits.Caused by Repetitive Continuous Makeup to Accumulator from Upper Head Injection Surge Tank, 05000369/LER-1984-030, Suppl to LER 84-030:review Revealed Installation Error That Would Result in Failure of Upper Head Injection Accumulator Discharge Valves to Isolate on Low Level.Analysis of Safety Significance & Encl, 05000370/LER-1984-019-01, :on 840820,while Filling & Venting Upper Head Injection Sys,Reactor Vessel Head Sight Glass Failed, Releasing RCS Water Into Containment Bldg.Caused by Design Deficiency.Sight Glass Replaced, 05000370/LER-1984-028, :on 841113,upper Head Injection Hydraulic Sys Alarm Received in Control Room for Train B While Train a Instruments Calibr.Caused by Crossover Connection Between Trains Allowing Pressure Surges, ML19306G616, ML20112G107, ML20126M295, ML20140A539, ML20202E874, NRC-86-3112, Forwards Results of Bart Evaluation Model Large Break LOCA 10CFR50.46 Analysis,Demonstrating Acceptability of upper-head Injection Removal in Support of License Amend. Info Re Sys Behavior W/ & W/O upper-head Injection Encl
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MONTHYEAR05000370/LER-1984-019-01, :on 840820,while Filling & Venting Upper Head Injection Sys,Reactor Vessel Head Sight Glass Failed, Releasing RCS Water Into Containment Bldg.Caused by Design Deficiency.Sight Glass Replaced1984-09-19019 September 1984
- on 840820,while Filling & Venting Upper Head Injection Sys,Reactor Vessel Head Sight Glass Failed, Releasing RCS Water Into Containment Bldg.Caused by Design Deficiency.Sight Glass Replaced
Project stage: Other ML19306G6161984-11-28028 November 1984 Discusses Region II 841102 Problem W/Upper Head Injection Sys at Facility.Memo Prepared Prior to Event Expressed Concern That NRC Does Not Appreciate Safety Significance of Event.Appropriate Action Requested Project stage: Other 05000369/LER-1984-029, :on 841029,concentration of Nitrogen in Upper Head Injection Accumulator Exceeded Tech Spec Limits.Caused by Repetitive Continuous Makeup to Accumulator from Upper Head Injection Surge Tank1984-11-29029 November 1984
- on 841029,concentration of Nitrogen in Upper Head Injection Accumulator Exceeded Tech Spec Limits.Caused by Repetitive Continuous Makeup to Accumulator from Upper Head Injection Surge Tank
Project stage: Other 05000370/LER-1984-028, :on 841113,upper Head Injection Hydraulic Sys Alarm Received in Control Room for Train B While Train a Instruments Calibr.Caused by Crossover Connection Between Trains Allowing Pressure Surges1984-12-13013 December 1984
- on 841113,upper Head Injection Hydraulic Sys Alarm Received in Control Room for Train B While Train a Instruments Calibr.Caused by Crossover Connection Between Trains Allowing Pressure Surges
Project stage: Other 05000369/LER-1984-030, Suppl to LER 84-030:review Revealed Installation Error That Would Result in Failure of Upper Head Injection Accumulator Discharge Valves to Isolate on Low Level.Analysis of Safety Significance & Encl1984-12-19019 December 1984 Suppl to LER 84-030:review Revealed Installation Error That Would Result in Failure of Upper Head Injection Accumulator Discharge Valves to Isolate on Low Level.Analysis of Safety Significance & Encl Project stage: Other ML20112G1071984-12-20020 December 1984 Forwards Evaluations of Complete Draindown of Upper Head Injection Sys Water Accumulator & Poor Performance of Kerotest Valves for Compliance W/Tech Spec 4.5.1.2c.Channel Calibr Overlapping Surveillance Satisfies Tech Specs Project stage: Other ML20126M2951985-07-24024 July 1985 Advises That Addl Info Needed for Plants W/Upper Head Injection (Uhi) Sys to Assess Likelihood of Loss of Uhi auto-isolation Capability.Info Re Demand & Failure Frequencies of Isolation Function Requested within 30 Days Project stage: Other ML20136D3301985-12-23023 December 1985 Forwards Response to NRC 851104 Request for Addl Info Re Radiological Aspects of upper-head Injection Removal & Radiological Impacts on Plant Operations.Final Decision Re Disposal Method Expected by Late Jan 1986 Project stage: Request ML20140A5391986-03-17017 March 1986 Provides Addl Info Re License Amend Request Concerning upper-head Injection Sys.Bash Large Break LOCA Analyses Replaced w/NRC-approved Bart Analyses.Info from Listed Submittals Still Valid Unless Noted Project stage: Other NRC-86-3112, Forwards Results of Bart Evaluation Model Large Break LOCA 10CFR50.46 Analysis,Demonstrating Acceptability of upper-head Injection Removal in Support of License Amend. Info Re Sys Behavior W/ & W/O upper-head Injection Encl1986-03-18018 March 1986 Forwards Results of Bart Evaluation Model Large Break LOCA 10CFR50.46 Analysis,Demonstrating Acceptability of upper-head Injection Removal in Support of License Amend. Info Re Sys Behavior W/ & W/O upper-head Injection Encl Project stage: Other ML20202E8741986-04-0808 April 1986 Forwards Addl Info Re Radwaste Expected to Be Generated During upper-head Injection Removal,Per NRC 860407 Telcon Project stage: Other ML20203C6371986-04-17017 April 1986 Responds to 860416 Request for Addl Info Re Planned Elimination of Upper Head Injection Sys.Containment Penetration Capping Will Be Performed Per Applicable Codes & Stds & Design Requirements Project stage: Request 1984-09-19
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DUKE POWER GOMPANY I*.O. ISOX 30180 CIEARLOTrE, N.C. 28242 IIAL II. TUCKER mEPHONE vmm ramminewe (704) 373-4531 manaAB rBODETTION April 8,1986 iMr.fHarokR.[Denton', Director Office of Nuclea'r Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555 ATTENTION:
B.J. Youngblood, Director PWR Project Directorate #4
Subject:
McGuire Nuclear Station 4
Docket Nos. 50-369, -370
Dear Mr. Youngblood:
By letter dated December 23, 1985, Duke provided information regarding the radiological aspects of UHI removal and related radiological impacts on plant operations.
In a conference call on April 7,1986 the NRC Project Manager for McGuire i
requested additional details relative to the radioactive waste expected to be generated. This additional information is attached.
Very truly yours,
/h Hal B. Tucker RLG/jgm Attachment xc:
Mr. Darl Hood, Project Manager
}
Division of Licensing Office of Nuclear Regulatory Commission Washington, D.C.
20555 l
W.T. Orders NRC Resident Inspector g
,g gg McGuire Nuclear Station gpf Ut $* b Dr. J. Nelson Grace I
I U.S. Nuclear Regulatory Commission
,l Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 i
W604190065 860408 PDR ADOCK ('5000369 P
PDR
Mr. Harold R. Denton April 8, 1986 Page 2 bxc: N.A. Rutherford R.O. Sharpe J.B. Day J.G. Torre S.A. Gewehr P.B. Nardoci M.L. Birch D.R. Bradshaw I
L.
Lewis T.L. McConnell E.O. McCraw A.L. Snow 4
j W.D. Reckley MC-801.01 I
J t
l
e DUKE POWER COMPANY MCGUIRE NUCLEAR STATION Additional Information Related to UHI Removal Expected Radioactive Waste Estimated Activity a)
Equipment with low radiation and 0.2 Ci contamination levels:
b).
Equipment with medium radiation and 0.5 contamination levels:
c)
Equipment with high radiation and 5.2 contamination levels:
d)
NI check valves:
0.5 e)
Hanger materials:
0.2 TOTAL 6.6 Ci This total estimated activity is approximately 3.0% of the total activity shipped from McGuire in solid waste in 1985'.
A final decision on the best disposal method has not yet been made.
With the four disposal options we estimate the following:
Waste Waste Recyclable Recyclable Volume Activity Volume Activity 3
Option 1 807 ft 6.6 Ci 0
0 3
3 2
1 ft 6.6 Ci 806 ft
<MDA 3
3 3
1 ft 6.6 Ci 806 ft
<MDA 3
3 4
1 ft 6.6 Ci.
806 ft
<MDA Disposal of all materials shall be performed in accordance with applicable regulatory requirements.
,