ML19260C669

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Revises 790921 Response to IE Bulletin 79-21, Temp Effects on Level Measurements. Changes from 791215 to 800101 Date to Reflect Effects on Pressurizer & Steam Generator Level Indications Due to Pressurizer Pressure & Containment Temp
ML19260C669
Person / Time
Site: Zion  File:ZionSolutions icon.png
Issue date: 12/14/1979
From: Peoples D
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
IEB-79-21, NUDOCS 8001080274
Download: ML19260C669 (1)


Text

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@' One First National Plata. Chicago. Ilknois p{

Commonwealth Edison Address Reply to: Post Office Box 767 Chicago, Illinois 60690 December 14, 1979 Mr. James G. Keppler, Director Directorate of Inspection and Enforcement - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Rd.

Glen Ellyn, IL 60137

Subject:

Zion Station Units 1 and 2.

Revised response to IE Bulletin No. 79-21

" Temperature Effects on Level Measurements" NRC Docket Nos. 50-295 and 50-304 Reference (a):

August 13, 1979, letter from James G.

Keppler to Byron Lee, Jr. transmitting IE Bulletin No. 79-21.

(b):

September 21, 1979, letter from D. L.

Peoples to James G. Keppler transmitting response to IE Bulletin No. 79-21

Dear Mr. Keppler:

In response to Item 4 of IE Bulletin No. 79-21, Temperature Effects on Level Measurements, Commonwealth Edison committed in Reference (b) to revising Emergency Operating Procedures, by December 15, 1979, to reflect the effects on pressurizer and steam generator level indications due to pressurizcr pressure, steam gen-erator pressure and containment temperature.

Since the associated Emergency Operating Procedures are in the process of being revised to reflect small break LOCA concerns as required by NUREG-0578, Commonwealth Edison will incorporate the effects on pressurizer pressure and steam generator pressure with these revisions.

These revisions will be implemented by January 1, 1980.

Please address any questions that you might have concerning this matter to this office.

Very truly yours,

/h.(

A.

D. L. Peo s

Director of Nuclear Licensing WFN:al attachment i702 268 cc:

NRC Office of Inspection and Enforcement, Division of h

q \\bl Reactor Operations Inspection

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8001080 2.9 4