ML20086A081

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Responds to NRC Re SER on Masonry Wall Design Evaluation Performed Per IE Bulletin 80-11.Five Walls Using Joint Reinforcement Will Be Modified by Adding Structural Steel Reinforcement Sections
ML20086A081
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 11/04/1983
From: Alexich M
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To: Harold Denton
Office of Nuclear Reactor Regulation
References
REF-SSINS-6820 AEP-NRC:0418G, AEP-NRC:418G, IEB-80-11, NUDOCS 8311110245
Download: ML20086A081 (2)


Text

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INDIANA & MICHIGAN ELECTRIC COMPANY P.O. BOX 16631 COLUMBUS, OHIO 43216 November 4,1983 AEP:NRC:0418G Donald C. Cook Nuclear Plant Unit Nos. 1 and 2 Docket Nos. 50-315 and 50-316 License Nos. DPR-58 and DPR-74 NRC IE BUILETIN 80 MASCNRY WAILS Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Connission Washington, D.C.

20555

Reference:

Letter from Mr. S. A. Varga, NRC dated September 20, 1983 (Received October 5, 1983)

Dear Mr. Denton:

This letter is in response to the above referenced letter from Mr. S. A. Varga of your staff.

Mr. Varga's letter addressed the NRC Safety Evaluation Report (SER) on the Masonry Wall Design evaluation which was performed in accordance with the NRC IE Bulletin 80-11.

The SER found that the evaluation and modifications of the Masonry Walls performed by Indiana & Michigan Electric Company are acceptable with the exception of five walls (i.e., 12-4031-Wl, 1-4033-W2,-W3 and 2-4036-W2, W3).

These five walls used joint reinforcement.

We will modify the five walls. The method of modification will be similar to the earlier modifications, which involved the addition of structural steel reinforcement sections. Our review indicates that, with consideration of the wall modifications, the maximum calculated tensile stress in mortar will not exceed the allowable tensile stress.

These modifications will be completed at the Donald C. Cook Nucler.:

Plant during the February to April, 1984 refueling outage.

Very truly your,

,P. A xic )

Vice President j

cc: John E. Dolan W. G. Smith, Jr. - Bridgman R. C. Callen G. Charnoff E. R. Swanson, NRC Resident Inspector - Bridgman g

8311110245 831104 PDR ADOCK 05000315 G

PDR

l e AEP:NRC:0418G STATE OF OHIO i

I COUNTY OF FRANKLIN M. P. Alexich, being duly sworn, deposes and says that he is a Vice President of the Licensee Indiana & Michigan Electric Company, that he has read the foregoing response to the NRC Safety Evaluation Report on Evaluation of Masonry Walls, as per IE Bulletin 80-11 and knows the contents thereof; and that said contents are true to the best of his knowledge and belief.

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Subscribed and sworn to before me this k day of_ b

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WM d. $*ve.-

(Notary Public)

ROBERT A. BARLCW '

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