ML19338F805
| ML19338F805 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 10/09/1980 |
| From: | Reeves E Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8010270300 | |
| Download: ML19338F805 (4) | |
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WASHINGTON, D. C. 20555 October 9,1980 Docket Nos. 50-295 and 50-304 LICENSEE: COMMONWEALTH EDIS0N COMPANY (CECO)
FACILITY:
ZION STATION, UNIT NOS. 1 AND 2
SUBJECT:
SUMMARY
OF SEPTEMBER 25, 1980 MEETING RELATING TO SCHEDULES FOR ZION TASK ACTION ITEMS AND RELIABILITY STUDY AND INTRODUCTION OF NEW NRC ZION PROJECT MANAGER Introduction The meeting was requested by NRC to review schedules for Zion Task Action Items and the Reliability Study. The meeting was also used to introduce the new NRC Zion Station Project Manager being assigned about October 1980.
The meeting was held at CECO headquarters in Chicago, Illinois. The list of attendees is attached.'
Discussion Mr. S. Varga (NRC) discussed our concerns with the apparent delays in. CECO submittals relating to the Zion Station Reliability Study and Mitigating Features Report. These studies have been delayed beyond the July to August 1980 time frame predicted earlier by CECO. Mr. Varga introduced his staff present at the meeting (E. Reeves, D. Wigginton, and L'. Olshan) and advised CECO that Mr. D. Wigginton would become the NRC Zion Station Project Manager in the near future. Also present was Joel Kohler, I&E Resident Inspector for Zion.
Mr. Cordell Reed, Vice President, CECO, then introduced his staff present at the meeting. Mr. W. L. Stiede has recently been appointed as the direct contact for CECO actions relating to the NRC Action Plan dated March 17, 1980. Mr..Stiede then introduced Mr. George Klopp (CECO) for a presentation of current schedules for completion of the combined Zion / Indian Point Study.
See Figure 1 " Basic Structure of Zion / Indian Point Study," (attached) which was presented showing Data 'and Consequence Scenarios, Systems Review and Analyses, and Generic and Plant Data Review Paths to Conclusions and Decisions.
At this point, Mr. Varga presented Figure 1 " Update:
Approach for Zion / Indian Point Actions" attached, which was prepared by NRC staff as a draft. target.
Note that the NRC staff had been considerfag a parallel effort for the Mitigating Features Study and the ZIP Risk Analysis. However, a review of these two figures shows the reasons for NRC concerns and the-reason for i
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g Meeting Summary for Zion 1 and 2 Octobe" 9, 1980 this meeting. CECO advised that the System Fault Trees and Event Trees were near completion at this time.
The current most optimistiG estimate of CECO's own schedule which was presented is as follows:
(1) Consequences Analysis 10/10/80 (2) Mitigating Features 12/17/80 (3) Report Preparation (Final) 01/02/81 The schedule date of January 2,1981 for final report preparation does not allow for any difficulties or rewrite after review. After discussion of the details of the schedule we believe a date of about February 15, 1981 for submittal of the final report to NRC as more realistic.
However, they are working toward their January date, and CECO agreed to provide certain draf t information to NRC (to facilitate faster reviews) on the following approximate schedule:
(1) System Analysis 10/31/80 (2) Data Packages 10/06/80 (3) Event Trees (first cut quanti-fication less containment trees) 11/10/80 (4) Seismic Analysis 10/20/80 (5) Non-Seismic Special Events Analysis 10/31/80 (6) Consequence Analysis 11/15/80 (7) Mitigating Features 12/08/80 It was agreed that a future meeting would be held with NRC (J. Meyers) on Containment Behavior Analysis in early December 1980 following submittal of their draft second cut Containment Analysis to NRC (to be submitted about December 1,1980) and just prior to completion of their final report.
CECO agreed to document their proposed new schedules in the near future.
A discussion of Quality Assurance (reference to NRC letter dated September 23, 1980) questions recently received by CECO was held by Mr. W. Shewski (CECO).
Mr. Shewski expressed concern that the answers to Enclosure 1 questions were included in the NRC approved CECO Topical Report CE-1-A.
Additionally, Mr.
Shewski was specifically ' concerned about Question 48 relating to ASN1-N45.2.6 referenced in this question.
We agreed that a conference call should be initiated at CECO's convenience for a discussion with the NRC Project Manager and NRC Quality Assurance Branch.
CECO advised that Enclosure 2 was a probleu, however, they advised that Items D and E of Enclosure 2 were no problem.
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-s Meeting Summary for Zion 1 and 2 October 9, ~1580
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Mr. T.' Tramm (CECO) discussed CEC 0's letter dated July 25, 1980 relating
.to' a one year delay for certain items relating to Zion Station and other CEC 0 plants. The only items relating to Zion Station were as follows:
'(1)
Item 1 - TMI Action Plan item II.K.3.1, Power Operated Relief Valve Automatic Block feature, is being reviewed by owners groups. CEC 0 proposed a three month delay in the report. Scheduled installation 4
would be during February 1982 outage.
(2). Item 1 - TMI Action Plan Item III.D.3, Control Room Habitability, was discussed. CEC 0 stated Zion Station nearly met the criteria now.
However, an air supply to the control room is needed. CECO advised that the modification schedule of January 1983 stated in NRC's Septenber 5, 1980 clarification letter would be net.
CEC 0's report would be the only thing to be a year late.
(3)
Item 2 - Masonry Wall Design. CECO advised that $5 million per unit is necessary to meet the January 1981 date. However, $50 million per unit is needed to meet NUREG-0660 requirements.
CEC 0 expressed a desire to get an answer to their July 25, 1980 letter.
However, an NRC answer was not requested by the July 25,1980 CEC 0 letter.
Mr. Varga advised that-the Assistant Director for Operating Reactors, Mr.
Tom Novak, would have further discussions with Mr. Reed of CEC 0 regarding the July 25 letter.
Outstanding licensing actions were discussed as follows:
(1) CECO advised that the LOCA Peaking Factor increase to 2.20 was limiting power output on both Zion Station units.
Since this fact is not specifi-cally noted in CEC 0's. previous submittal, CECO agreed to update their docket.
NRC agreed to expedite the review.
(2)' CEC 0 advised that their response to the NRC request of July 16, 1980 to j
upgrade the Zion Station Technical Specifications to Standard Technical Specification (STS) had been delayed.
A letter about October 30, 1980 will explain CEC 0's problems in using the STS wording for Zion Station.
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CECO considers 'that their 3-train system design makes the STS not directly applicable to Zion Station. CECO noted that in about one year t
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4 Meeting Summary for Zion 1 and 2 October 9, 1980 they would submit to NRC the standard version of the STS as applies to Zion Station. CECO was advised by Ed Reeves, NRC Project Manager for Zion Station, to use the STS wording unless a technical basis exists for word changes. We agreed to set up meetings with STS personnel when the CECO submi ttal arrives.
CECO questioned the status.of HRC approval of Anticipated Transients Without Scram proposal submitted by letter dated July 23, 1980. We advised that our review has been delayed pending the outcome of a paper presented to the NRC Comissioners recently. CECO will be advised if their design proposal will be approved in advance of action anticipated on all reactor plants or if Zion Station will be included with the other reactor plants.
CECO noted that their January 1,1980 letter relating to TM1 post-implementation review modifications has not been answered by NRC. Certain modifications had been made on Unit 2 during the last refueling outage which started May 2,1980 although post-implementation approval was required by NRC guidance.
The systems installed (reactor vessel level indication and reactor vessel vent system) are being kept inoperable pending receipt of NRC approval.
Zion Unit 1 may extend the start of the next refueling outage until about February 1,1981. However, CECO requested design approvals needed to meet this outage schedule. Specifically, CECO requested an answer to the question relating to a safety grade system for Auxiliary Feedflow indication.
Zion Station does not have a safety grade design. We agreed to push the review of this item.
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Edward A. Reeves, Project Manager Operating Reactors Branch el Division of Licensing Atte.hments:
As Stuted cc: w/ attachments See next page vr.
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'Enclosura 1
,' LIST OF ATTENDEES
/Conanonwealth Edison Company Westinghouse NRC
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Terry.Rieck
. D. K. Goeser E. Reeves Tom Tramm W. E. Koutrev
- D. Wigginton G. T. Klopp L. Olshan-W.-L. Stiede~
J. Kohler-Bill Bennett-
_ S. Varga J. ' F. ~ Davis -
4 C. Reed R. F. Naughton j
.W. J. Shewski*
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- Part Time Attendance s
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BASIC STRUCTURE OF ZION / INDIAN POINT STUDY (ceco)
Calculational Consequence Data & Consequence Models Analysis Scenarios
-Meterology
-CRAC Changes
-Terrain
-Testing y
-Demog rapin
-I mrrili ni y P l.ui Combineil Base Plant -)
Result Conclusions &
Systems Review __
& Analyses System Decisions n
Fault Trees a
-P& ids
-Indep endent
-FSAR failures
' Dependent
-Schematics
-Visits-failures Release PRA of Probabilities Mitigating
& Quantification Features Event IGeneric & Plant Trees lDataReview
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-Failure rates
-Initiators-
-Repair times
-Operator
-Operating data
-Interaction
-Event frequency n
Seismic if Events Containment Effects
-Containment Other capability External
-Phenomenology Events H2 Steam Explosion Steam Spike Debris Coolability
-Transient Evaluation
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Figure-I
9 Meeting Sununary for Zion 1/2 October 9,1980 Docket Files NRC PDR Local PDR JSIC dERD ORB 1 Reading NRR Reading H. Denton E. Case D. Eisenhut R. Purple T. Novak R. Tedesco G. Lainas G. Zech S. Varga T. Ippolito R. Clark R. Reid D. Crutchfield B. J. Youngblood A. Schwencer J. Miller J. Wetmore B. Grimes H. Collins F. Pagano EPDB, DL Project Manager DELD OSD (3)
S. Showe, I&E C. Parrish R. Fraley, ACRS (16)
Principal Staff Purticipants Licensee Short Service List W. Haas N. Lauben R. Satterfield J. Meyers
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