ML20206T971

Proposed Tech Spec 3/4.3.7.4 Re Suppression Pool Water Level & Water Temp Instrumentation to Remote Shutdown Monitoring Instrumentation

ML20206T971
Person / Time
Site:	LaSalle
Issue date:	07/03/1986
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20206T958	List: ML20206T955 ML20206T971
References
1837K, NUDOCS 8607080274
Download: ML20206T971 (4)

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ATTACIGENT B SIGNIFICANT HAZARDS CONSIDERATION Commonwealth Edison has evaluated the proposed Technical Specification Amendment and determined that it does not represent a significant hazards consideration. Based on the criteria for defining a significan.t hazards consideration established in 10 CFR 50.92, operation of LaSalle County Station Unit 2 accordance with the proposed amendment will not:

1)

Involve a significant increase in the probability or consequences of an accident previously evaluated or create the possibility of a new or different kind of accident from any previously evaluated because this change only adds additional instrumentation. This added instrumentation assures that operable instruments will be available if needed.

2)

Involve a significant reduction in the margin of safety because the added instrumentation will increase the margin of safety by requiring that remedial actions be taken if the instrumentation becomes inoperable for any reason.

Based on the preceding discussion, it is concluded that the proposed system change clearly falls within all acceptable criteria with respect to the system or component, the consequences of previously evaluated accidents will not be increased and the margin of safety will not be decreased.

Therefore, based on the guidance provided in the Federal Registar and the criteria established in 10 CPR 50.92(e), the proposed change does not constitute a significant hazards consideration.

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