ML20248B103
| ML20248B103 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 08/01/1989 |
| From: | Chrzanowski R COMMONWEALTH EDISON CO. |
| To: | Murley T Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20248B106 | List: |
| References | |
| 0234T:1, 234T:1, NUDOCS 8908090121 | |
| Download: ML20248B103 (3) | |
Text
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Commonwealth Edison' l
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4-72 West Adams Street, Chicago, Illinois L.
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~ Chicago Illinois 60690 + 0767 LAugut.t 1, 1989.
Dr.' Thomas E.'Murley,' Director q
Office of Nuclear Reactor Regulation j
U.S. Nuclear Regulatory Commission
. Washington, DC 20555 l
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Subjects Byron Ttation Units 1 and 2 Amend wlt to Operating Lice wes NPF-31 and NPT-66 NRC Docket Nos. 50-454 and 50-455 C
References (a) May 23, 1989, letter from R. A. Chrzanowski-
.to-T. E.-Murley (b)- July 20, 1989, letter from'R. A. Chrzanowski to T.=E. Murley
Dear Dr. Murley:
In references (a) and (b), Commonwealth Edison submitted a. proposed Technical Specification Amendment regarding the Byron Station Ultiinate Heat Sink.
On July 31,.1989, a teleconference was held with memDere of your'ctaff to discuss proposed Action Statement h) 2).
Attachment A to thist letter provides the revised Action Statement.
Attachment B provides the Byron Operating Abnormal-procedure; that contains the' specific actions that'would be taken if a tornado were to make the essential service water make-up pumps inoperable coincident with the deep well.
pumps failure to start.
Commonwealth Edison requests the incorporation of this change into the, proposed amendment.-
The scope of this submittal is encompassed by the original request, therefore, the significant hazards evaluation in reference (a) remains valid.
Please direct any further questions on this matter to this office.
Very truly yours, h
dMd2d R. A. Chrzanowski
. Nuclear Licensing Administrator 0234T 1 cc s ' Byron Resident Inspector Ob L. N. 61shan - NRR L '
I Region III Office Office of Nucleer Facility Safety - IDNS k
0908090121 890801
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PDR ADOCK 05000454
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4 ATTACHMENT A REVISED ACTION STATEMENT h) 2) l h)
With a tornado watch issued by NWS that includes Byron site areat-
- 2) With one deep well pump inoperable within 30 minut.es take action to restore both deep well pumps to OPERABLE status with both basin levels t 82% and at least once every 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> thereafter, verify both basin levels
- 82%.
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. ATTACID4ENT B BYRON ABNORMAL OPERATING PROCEDURE 2 BOA ENV-1 OPERATION DURING TORNADO OR SUSTAINED WIND CONDITIONS-UNIT 2 l
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