ML20247K119

Notice of Violation from Insp on 890320-23.Violation Noted: as of 890421,CO2 Sys in Cable Vault & in Diesel Fire Pump Day Tank Room Had Not Been Demonstrated as Operable

ML20247K119
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	05/18/1989
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20247K088	List: IR 05000271/1989004 ML20247K084 ML20247K119
References
50-271-89-04, 50-271-89-4, NUDOCS 8906010217
Download: ML20247K119 (1)

Text

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s' APPENDIX A NOTICE OF VIOLATION Vermont Yankee Nuclear Power Corp. Docket No. 50-271 Vermont Yankee Nuclear Station License No. DPR-28 As a result of the inspection conducted on March 20-23, 1989, and in accordance with the " General Statement of Policy and Procedure for NRC Enforcement- Actions",

10.CFR Part 2, Appendix'C (Enforcement Policy 1989) the following violation was identified:

Technical Specification 3.13.0 requires that the carbon dioxide fire suppression (CO2) systems located in the cable vault and diesel fire pump day tank room shall be operable whenever equipment-in the area protected by the systems is required to be operable. The technical specifications require a continuous fire watch if the CO2 system in the cable vault is inoperable and an hourly fire watch if the CO2 system in the fire pump day tank room is inoperable.

In a letter to NRC dated January 31, 1977, the licensee stated that the

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carbon dioxide systems at Vermont Yankee were designed to meet the require-ments of the 1977 National Fire Protection. Association (NFPA) Standard 12.

NFPA Standard 12 Section 1-7.3 specifies that the installed carbon dioxide systems shall be tested and the tests performed shall be adequate to. deter-mine that the system has been properly installed and will function as intended. The C02 systems are designed to achieve a 50 percent concentra-tion. In the cabic vault, this concentration must be maintained for ten minutes.

Contrary to.the above, as of April 21, 1989, the CO2 systems in the cable vault and in the diesel fire pump day tank room had not been demonstrated to be operable,.in that no tests had been performed of their capability to reach and maintain design concentrations of CO2, and the appropriate fire watches had not been implemented.

This is a Severity Level IV Violation (Supplement 1)

Pursuant to 10 CFR 2.201, Vermont Yankee Nuclear Power Corp. is hereby required to submit to this office, within 30 days of the date of the letter transmitting this Notice, a written statement or explanation in reply, including: (1) The.

reasons for the violations; (2) the corrective steps which have been taken and the results achieved; (3) corrective steps which will be taken to avoid further violations; and (4) the date when full compliance will be achieved.

Where good cause is shown, consideration will be given to extending this response time.

8906010217 890518 PDR ADOCK 05000271 Q PDC

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