ML20207S525

Environ Assessment & Finding of No Significant Impact on Util 870202,11,28 & 0310 Requests for Exemption from 10CFR50,App R Re Fire Protection.Action Will Not Effect Quality of Human Environ.Eis Unnecessary

ML20207S525
Person / Time
Site:	Three Mile Island
Issue date:	03/11/1987
From:	Stolz J Office of Nuclear Reactor Regulation
To:
Shared Package
ML20207S526	List: ML20207S525
References
NUDOCS 8703190608
Download: ML20207S525 (3)

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_ UNITED STATES NUCLEAR REGULATORY COMMISSION GPU NUCLEAR CORPORATION, ET AL.

DOCKET NO. 50-289 ENVIRONMENTAL ASSESSMENT AND FINDING 0F NO SIGNIFICANT IMPACT I

The U.S. Nuclear Regulatory Comission (the Commission) is considering issuar:ce of exemptions from the requirements of Appendix R to 10 CFP Part 50 to GPU Nuclear Corporation (the licensee), for Three Mile Island Nuclear Station, Unit No. 1 (TMI-1) located in Dauphin County, Pennsylvania.

ENVIRONMENTAL ASSESSMENT Identification of the Proposed Action: The exemptions are related to Section III.G.2 os Appendix R to 10 CFR Part 50, " Fire Protection for Nuclear Power Facilities Operating Prior to January 1,1979".

Section III.G of Appendix R requires fire protection for equipment important to safe shutdown.

Such fire protection is achieved by various combinations of fire barriers, fire suppression systems, fire detectors, and separation of safety trains (III.G.2) or alternate safe shutdown equipment free of the fire area (III.G.3). The objective of this protection is to assure that one train of equipment needed for hot shutdown would be undamaged by fire and that systems needed for cold shutdown could be repaired within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> (III.G.1).

The Need for the Proposed Action: Because it is not possible to predict the t

specific conditions under which fire may occur and propagate, the design basis protective features are specified in the rule rather than the design basis fire. Plant specific features may require protection different from the measures specified in Section III.G.

In such cases, the licensee must 8703190608 870211 PDR

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• ' - demonstrate, by means of a detailed fire hazards analysis, that existing protection in con. junction with proposed modifications will provide a level of safety equivalent to the technical requirements of Section III.G of Appendix R.

Environmental Impact of the Proposed Action: The proposed exemptions provide a level of safety equivalent to the technical requirements of Section III.G of Appendix R.

The exemptions will not change the types, or allow an increase in the amounts, of effluents that may be released offsite.

The exemptions would not result in an increase in individual or cumulative occupational radiation exposure.

Therefore, the Commission concludes that there are no significant radiological environmental impacts associated with the proposed exemptions.

With regard to potential nonradiological impacts, the proposed exemptions involve features located entirely within the restricted areas as defined in 10 CFR 20. They do not affect nonradiological plant effluents and have no other environmental impact. Therefore, the Commission concludes that there are no significant nonradiological environmental impacts associated with the proposed exemptions.

Alternative Use of Resources: This action involves no use of resources not previously considered in the Final Environmental Statement (construction permit and operating license) for Three Mile Island Nuclear Station, Unit 1.

Agencies and Persons Consulted:

The Commission's staff reviewed the licensee's request and did not consult other agencies or persons.

FINDING OF NO SIGNIFICANT IMPACT The Commission has determined not to prepare an environmental impact statement for the proposed exemptions.

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> Based upon the foregoing environmental assessment,-the Commission concludes that the proposed action will not have a significant effect on the quality of the human environment.

For further details with respect to the proposed action, see the letters requesting exemptions dated February 2, 1987, February 11, 1987, February 28, 1987, and March 10, 1987, which are available for public inspection at the Commission's Public Document Room, 1717 H Street, N.W.,

Washington D.C.

20555 and at the Governrrent Publications Section, State Library of Pennsylvania, Education Buildino, Commonwealth and Walnut Streets, Harrisburg, Pennsylvania 17126.

Dated at Bethesda, Maryland, this lith day of March,1987.

FOP THE NUCLEAR REGULATORY COMMISSION daX yohf F. Stolz, Directo D R Project Director e #6 Division of PWR Licensing-B

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