ML17199T343
| ML17199T343 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, 05000000 |
| Issue date: | 09/22/1987 |
| From: | Grotenhuis M Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| IEB-79-14, NUDOCS 8709290520 | |
| Download: ML17199T343 (7) | |
Text
.,
Docket Nos.: 50-237, 50-249 50-254 and 50-265 September ?2, 1987 Licensee:
Cormnonwealth Edison Company (CECo)
Facilities: Dresden Nuclear Power Station, Unit Nos. 2 and 3 Quad Cities Nuclear Power Station, Unit Nos. 1 and 2 Surmiary of Meeting Held on September 14, 1987, to discuss the Review of Flued Head Anchors.
Background:
On September 3, 1987 a conference call was held with NRR, Reg. III and CECo staff members (Conferees are listed in Attachment 1). One of the subjects discussed was the flued head anchors used for the containment penetrations in both the Dresden and Quad Cities Stations and how, or if, they meet the requirements of, IE Bulletin 79-14. During the call the CECo staff said that appropriate da.ta on that subject would be provided to the NRC staff.
This was done on the September 24, 1987 meeting.
The attendees are listed in Attachment 2 and the agenda is given in attachment 3.
Surmnary of CECo Presentation:
The CECo staff presented details according to the agenda. After presenting the history and the original design detail5 they presented a justification for the treatment of the containment penetrations. They also presented some details of the penetration for the CECo facilities concerned (see attachment 4 for a typical flued head anchor and support).
The CECo staff concluded that the original design for the Dresden and Quad Cities station was acceptable and that there is no need to evaluate the as-built ~esign of *the flued ~ead ~nder IE 8u11~ttn 19-14 penetrations.
In the conference call on September 3, 1987 CECo also presented preliminary details regarding continued operation criteria for LPCI piping. This was supplemented by a submittal dated September 4, 1987.
Further details regarding this operability question were provided in this September 14, 1987 meeting.
The CECo conclusion was that the LPCI piping was operable and that the preliminary details in the September 4, 1987 letter would be withdrawn.
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Conclusions:==
After a short caucus the NRC staff presented the following conclusions based on the presentations:
- 1.
The CECo presentation did not appear to be sufficient for the staff to agree or disagree without further study.
- 2.
The staff had a concern that the design basis may not have been properly implemented in some respect such as the appoi~tment of loads on anchors and assumptions in the frame analysis.
- 3.
The staff would have to examine the.FSAR's.for the two stations before coming to a final conclusion.
- 4.
The further study could consists of, in addition to the examination of the FSAR's, an audit of design calculations and/or inspection of the facilities.
- 5.
The operability question regarding the LPCI piping will also be considered by the staff.
- 6.
A written response to the CECo presentation will be provided by the staff as promptly as possible.
Attachments:
As stated Distribution:
POI I 1-2 r/f Pl ant r/f Docket File NRC PDR Local PDR JPartlow M. Grotenhuis OGC-Beth.
EJordan NRC Participants ACRS (10) cc:
Licensee and Plant Service List
/s I Marshall Grotenhuis, Project Manager Project Directorate III-2 Division of Reactor Projects - III, IV, V and Special Projects
~~~---;---~~~~~=~-~~~~~~=~--; ______________ ; ______________ ; ______________ ; ____________ _
- NAME
- MGrotenhuis/ww. DMuller
~------:----------------:--------------:--------------:--------------:--------------:-------------
JDATE
- JI?--V-/87
-Mr. L. p. Butterfield, Jr.
Co111nonwealth Edison Company cc:
Mr. Michael I. Miller Isham, Lincoln & Beale Three First National Plaza Suite 5200 Chicago, Illinois 60602 Mr. J. Eenigenburg Plant Superintendent Dresden Nuclear Power Station Rural Route #1 Morris, Illinois 60450 U. S. Nuclear Regulatory Co111nission Resident Inspectors Office Dresden Station Rural Route -#1 Morris, Illinois 60450 Chai nnan Board of Supervisors of
- Grundy County Grundy County Courthouse Morris, Illinois 60450 Regional Administrator Nuclear Regulatory Commission, Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. Michael E. Parker, Chief Division of Engineering Illinois Department of Nuclear Safety 1035 Outer Park Drive, 5th Floor Springfield, Illinois 62704 Dresden Nuclear Power Station Units 2 and'3
NAME Alan Ho Adolf Walser Dan gullaksen R.W. Knoebel P.C. Bhatt Dan Bailey Ted Wittig T. Javidan J. A. Gavula J.M. Johnson T. Ross D. Muller M. Grotenhuis R. Lipinski A. Lee EMBEDMENT PLATE EVALUATION MEETING COMPANY IMP ELL S&L S&L S&L S&L IMP ELL IMP ELL CE Co NRC I II CE Co NRR NRR NRR NRR NRR SEPT. 3, 1987 ATTENDANCE LIST ENCLOSURE 1 DEPARTMENT Engineering Division Struct. Project Eng.
Struct. Eng. Division Struct. Eng. Division Struct. Eng. Divis ion Engineering Division Engineering Division BWR Engineering Resident Inspector Nuclear Licensing PDIII-2 QL LPM PDIII-2 Director PDIII-2 D LPM NRR NRR-EMEB
Marshall Grotenhuis Arnold Lee Goutam Bagchi L.B. Marsh Neil P. Smith
- John *Jacobson Shahreim Javidan James S. Abel Alan D. Ho Adolf Walser Ted T. Wittig Bryan A. Erl er Irene M. Johnson Romuald E. Lipinski P. T. Kuo John A. Silady D.R. Mull er J.A. Gavula ENCLOSURE 2 NRC/NRR NRC/NRR/EMEB NRC/NRR/ESGB NRC/NRR/EMEB CE Co RH!
CECo BWR Eng.
CECo BWR Engr~ Dept.
IMP ELL Sargent & Lundy IMP ELL Sargent & Lundy CE Co NRC/NRR/ESGB NRC/NRC/EMEB CE Co NRR/PDII I-2 RIII Resident Inspector
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AGENDA
- * -1.
INTROOUCT ION II.
ORIGINAL DESIGN FOR DRESDEN AND QUAD CITIES III.
JUSTIFICATION FOR TREATMENT OF CONTAINMENT PENETRATIONS IV.
CONCLUSIONS FOR DRESDEN V.
OTHER CECO PLANTS ENCLOSURE 3
- I. M. JOHNSON CECO B. A. ERLER S&L T. T. WITTIG, IMPELL I. M. JOHNSON CECO B. A. ERLER, S&L
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