ML20141A918

Notice of Environ Assessment & Finding of No Significant Impact Re Issuance of Amend to License DPR-61.Amend Revises Tech Specs to Permit Repair of Degraded Steam Generator Tubes by Installing Metal Sleeves in Tubes

ML20141A918
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	03/27/1986
From:	Charemagne Grimes Office of Nuclear Reactor Regulation
To:
Shared Package
ML20141A857	List: ML20141A852 ML20141A882 ML20141A918
References
NUDOCS 8604040574
Download: ML20141A918 (2)

Text

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UNITEP; STATES NUCLEAR REGULATORY COPNISSION CONNECTICUT YANKEE ATOMIC POWER COMPANY ENVIRONMENTAL ASSESSMENT AND FINDING OF _

NO SIGNIFICANT IMfACT The U. S. Nuclear Regulatory Comission (the Commission) is considering issuance of a license amendment modifying the technical specifications to Corsnecticut Yankee At9mic Power Company (the licensee), for the Haddam Neck Plant located in Middlesex County, Connecticut.

Identification of Proposed Action:

The requested license amendment modifies the current technical specifica-tions to (1) permit the repair of degraded steam generator tubes by installing metal sleeves in the degraded tubes rather than removing them from service by plugging them; (2) change the definition of tube degradation; (3) add additional reporting requirements dealing with tube sleeving and (4) retiumber existing technical specification pages. The license amendment is responsive to the licensee's application dated December 6, 1985, as modified January 7, 1986.

The Need for the Proposed Action: The proposed license amendment is needed to reduce the number of steam generator tubes which may be required to be taken out of service of the pitting corrosion previously identified had progressed substantially.

Summary of Environmental Assessment l

The estimated radioactive releases resulting from the repair are much less than those due to normal plant operation. The doses due to these  !

releases are small compared to the limits of' 40 CFR Part 190 and to the  !

annual doses from natural background radiation. Therefore, the radiological impact of the repair will not significantly affect the quality of the  !

human environment.

With regard to potential non-radiological impacts, the proposed license amendment involves features located entirely within the restricted area as l defined in 10 CFR Part 20. They do not affect non-rediological plant effluents and have no other environmental impact. Therefore, the Commission

concludes that there are no significant non-radiological environmental impacts l associated with the proposed license amendment. 8604040574 g60327 DR ADOCK o p 3

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l Finding of No Significant Impact: The staff has :eviewed this proposed change relative to the requirc: neats set forth in 10 CFR Part 51. Based upon the  !

environmental assessment, the staff concluded that there are no significant radiological or non-radiological impacts associated with the proposed action and that the proposed license amendment will not have a significant effect on the quality of the human environment. Therefore, the Commission has determined, pursuant to 10 CFR 51.31, not to prepare an environmental impact statement for the proposed amendment.

For further details with respect to this action, see (1) the application for amendment to the technical specifications dated December 6,1985, as modified January 7,1986,(2) the Final Environmental Statement for Haddam Neck issued October 1973, and (4) the Environmental Assessment dated These documents are available for public inspection at the Comission's Public Document Room, 1717 H Street, N.W., Washington, D.C., 20555 and at the Russell Library, 123 Broad Street, Middletown, Connecticut, Dated at Bethesda, Maryland this March 27.1986.

FOR THE NUCLEAR REGULATORY COMMISSION WT SLUA1.

Christopher I. Grimes, Director Integrated Safety Assessment Project Directorate Division of PWR Licensing - B I

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