ML20235Z065

Forwards Amend 112 to License DPR-61 & Safety Evaluation. Amend Provides one-time Relaxation of Containment Integrity Tech Specs to Allow Svc Water Side of Four Containment Air Recirculation Fan HXs to Be Cleaned at Power

ML20235Z065
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	03/07/1989
From:	Wang A Office of Nuclear Reactor Regulation
To:	Mroczka E CONNECTICUT YANKEE ATOMIC POWER CO.
Shared Package
ML20235Z069	List: ML20235Z065 ML20235Z086 ML20235Z088
References
TAC-72024, NUDOCS 8903150111
Download: ML20235Z065 (3)

Text

.

• March 7,1989 i ,-

Docket No. 50-213 Mr. Edward J. Mroczka Senior Vice President Nuclear Engineering and Operations Connecticut Yankee Atomic Power Company P. O. Box 270 Hartford, Connecticut 06141-0270

SUBJECT:

ISSUANCE OF AMENDMENT (TAC NO. 72024)

The Comission has issued the enclosed Amendment No. 112 to Facility Operating License No. DPR-61 for the Haddam Neck Plant, in response to your application dated February 10, 1989.

The amendment will provide a one-time relaxation of the containment integrity Technical Specification to allow the service water side of the four containment air recirculation fan heat exchangers to be cleaned while at power. Because of the concern regarding the service water system design loads, design basis river temperature, and distribution of flows to various safety related equipment under various accident conditions, CYAPC0 is currently reanalyzing the service water system. Because of the importance of the service water system, the staff request that CYAPCO submit this service water system reanalysis fan our review.

In addition, in our Safety Evaluation (SE), dated January 10, 1989, on the Third 10-year Interval Inservice Inspection Program we noted that pursuant to 10 CFR 55a(b)(2)(iv) the Containment Air Recirculation (CAR) for cooler system should be examined. We believe this examination would even be more prudent now as the service water system is no longer throttled to provide a second barrier (system pressure) for containment isolation. While we agree that no credit was given for the system pressure, we also note that by current criteria a closed system would require an ASME Class 2 system. A non-destructive examination of the CAR fan cooler system would provide assurance of the system integrity and its ability to serve as a containment barrier.

A copy of the related Safety Evaluation is also enclosed. The Notice of Issuance will be included in the Commission's bi-weekly Federal Register notice.

v Sincerely, oE>

s/

gg Alan Be Wang, Project Manager cs.n Project Directorate I-4 50 Division of Reactor Projects I/II

,y Office of Nuclear Reactor Regulation

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Enclosures:

'- 1. Amendment No.112 to DPR-61 i $ct 2. Safety Evaluation YoSe cc w/ enclosures:

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Hr. Edwa'rd J. Mroczka Connecticut Yankee Atomic Power Company Haddam Neck Plant cc: j Gerald Garfield, Esquire R. M. Kecich, Manager Day, Berry and Howard Generation Facilities Licensing Counselors at Law Northeast Utilities Service Company City Place Post Office Box 270 Hartford, Connecticut 06103-3499 Hartford, Connecticut 06141-0270 W. D. Romberg, Vice President D. O. Nordquist-Nuclear Operations Director of Quality Services Northeast Utilities Service Company Northeast Nuclear Energy Company l Post Office Box 270 Post Office Box 270 Hartford, Connecticut 06141-0270 Hartford, Connecticut 06141-0270 Kevin McCarthy, Director Regional Administrator Radiation Control Unit Region I Department of Environmental Protection U. S. Nuclear Regulatory Comission State Office Building 475 Allendale Road Hartford, Connecticut 06106 King of Prussia, Pennsylvania 19406 Bradford S. Chase, Under Secretary Board of Selectmen Energy Division Town Hall Office of Policy and Management Haddam, Connecticut 06103 80 Washington Street Hartford, Connecticut 06106 J. T. Shedlosky, Resident Inspector Haddam Neck Plant D. B. Miller, Station Superintendent c/o U. S. Nuclear Regulatory Comission Haddam Neck Plant Post Office Box 116 Connecticut Yankee Atomic Power Company East Haddam Post Office RFD 1 Post Office Box 127E East Haddam, Connecticut 06423 East Hampton, Connecticut 06424 G. H. Bouchard, Unit Superintendent Haddam Neck Plant RFD #1 Post Office Box 127E East Hampton, Connecticut 06424 I

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