ML20032D293
| ML20032D293 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 10/30/1981 |
| From: | Hunter R INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| AEP:NRC:0418C, AEP:NRC:418C, IEB-80-11, NUDOCS 8111130600 | |
| Download: ML20032D293 (4) | |
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lNDIANA & MICHIGAN ELECTRIC COMPANY P. O. BO X 18 BOWLING GREEN ST ATloN N EW YORK. N. Y.10004 October 30, 1981 AEP:NRC:0418C M'- - C p Donald C. Cook Nuclear Plant Unit Nos. 1 and 2
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0 Docket Nos. 50-315 and 50-316 License Nos. DPR-58 and DPR-74 NOV12 1981* d.
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,s Mr. James G. Keppler, Regional Director
. sp/ /ru U.S. Nuclear Regulatcry Commission Office of Inspection and Enforcement Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137
References:
- 1) NRC IE Bulletin 80-11, dated May 8,1980
- 2) letter AEP:NRC:0418 dated July 10, 1980
- 3) letter AEP:NRC:0418A dated January 14, 1981
- 4) letter AEP:NRC:0418B dated March 20, 1981
Dear Mr. Keppler:
This letter and its attachments are the final report mentioned in Reference (4) on the actions taken to address the concerns of Reference (1) as they apply to the Donald C.' Cook Nuclear Plant.
The total number of masonry walls initially' considered for in-vestigation under the scope of the bulletin was one hundred and forty-four. Of those, only one hundred and thirty (see Reference (4)) were considered to be " safety-related", namely as falling under the scope of Reference (1).
Further evaluation has reduced that number to one hundred and twenty-three walls, as indicated in Attachment A to this submittal.
We also reported in Reference (4) that thirty-nine masonry walls were slated to be modified and that three walls were still under evaluation for pipe break loads. By more appropriate wall classification and safety-related equipment relocation and proper identification, the final number of walls in need of modification has become thirty-four as in-dicated both in attachments A and B to this letter. Attachment 8, in particular, describes the type of modifications implemented in those thirty-four walls.
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Mr. James G. Keppler AEP:NRCiO418C As of the date of this letter the masonry wall evaluations have been completed and the necessary modifications have been implemented at the plant. Therefore, the requirements called for in IE Bulletin 80-11 have been completed for the D.C.- Cook Plant.
This document'has been prepared following Corporate Procedures -
which incorporate a reasonable set of controls to insure its accuracy and completeness prior to signature by the undersigned.
Very truly yours,
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. S. Hunter Vice President cc: John E. Dolan - Columbus R. W. Jurgensen D. V. Shaller - Bridgman R. C. Callen G. Charnoff Joe Williams,1Jr.
NRC Region III Resident Inspector - Bridgman l
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ATTACINENT "A" TO AEP:NRC:0418C Donald C. Cook Nuclear Plant Masonry Wall Design-IE Bulletin 80-11 Wall Summary y
1)
Total No. of masonry walls in class I ar2as 144 2)
Total No. of " safety-related" walls 123 3)
Total No. of "non-safety related" walls 21 4)
Total No. of walls recently constructed and designed to meet all postulated loads including those of IE Bulletin 80-11 6
5)
Total No. of sa'ety-related walls re-analyzed 117 6)
Total No. of safety-related walls requiring modification 34 7)
Total No. of safety-related walls not raquiring modification
'89 8)
Total No. of safety-related walls modified 34 m
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ATTACHMENT "B" TO AEP:NRF.:0418C Donald C. Cook Nuclear Plant Masonry Wall Design-IE Bulletin 80-11 Walls Modified
. WALL AREA FIX 1
12-40.25-W1 Containment Spray Pump #1E BM 2
2 containment Spray Pump #1W BM 3
3 Residual Heat Removal Pump #1E BM 4
4 Residdal Heat Remove 1 Pump #1W BM 5
21 Containment-Spray Pump #2E BM 6
22 Containment Spray Pump #2W BM 7
23 Residual Heat Removal Plimp #2E BM 8
24 Residual Heat Removal Pump #2W B!!
i 9
26 Boric Acid Evap. Feed & CVCS TK. Pump' Pit BM I
10 12-4026-W14 Borid' Acid Evap. Tank BM.
11 16
_;s Ducay Tanks GRTG.
l 12 18 Gas Decay Tanks GRTG.
l 13 20 Boric Acid Evap. Tank BM 14 12-4027-W10 New Waste Evap. Enclosure BM 15 12-4028-W2 Boron Injection Tank BM 16 3
volume control Tank.
GRTG.
17 6
Concentrate hviding Tank GRTG.
18 8
Boron Injection Tank BM 19 9
Volume Control Tank GRTG.
I 20 12-4029-W1.
Spray Heat Exchanger.
BM 21 7
Residual Heat Exchanger BM 22 12-4031-W1 Computer Rm. #1 BM 23 2
Computer Rm. #2 BM 24 1-4033-W1 Diesel Gen. Rm. Unit #1 Angles
__25 4
Diocel Gen. Rm. Unit #1 Angles 26 1-4034-W1 Trfmrs. 11B & llo End BM.
_ 27 2
Trfmrs. 11A & llc End BM.
28 12-4035-W1 Cable Passagcuay#1 BM
_ 29 2
Cable Passageway 22 BM 30 3-4036-W1 Diesel Gen. Rm. Unit #2 Angles
_3.1 4
Diesel Gen. Rm. Unit #2 Angles 32 2-4037-W1 Trfmrs. 21B & 21D End EM, 33 2
Trfmrs. 21A & 21C End BM 34 12-4049-W4 Partition BM BM----Beam added to face of wall Angles---Angles added to face of wall GRTG---Grating added at Knock-out areas to encapsulate block wall End BM----Beam added at end of wall
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