ML20133P830

Environ Assessment & Notice of Finding of No Significant Environ Impact Re Issuance of Exemptions from 10CFR50 App a, GDC 34 & 37 Per Licensee 841106,850326 & 27 Requests

ML20133P830
Person / Time
Site:	Three Mile Island
Issue date:	08/08/1985
From:	Snyder B Office of Nuclear Reactor Regulation
To:
Shared Package
ML20133P766	List: ML20133P765 ML20133P771 ML20133P785 ML20133P802 ML20133P830
References
NUDOCS 8508140501
Download: ML20133P830 (7)

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UNITED STATES NUCLEAR REGULATORY COMMISSION GENERAL PUBLIC UTILITIES NUCLEAR CORPORATION DOCKET NO. 50-320 ENVIRONMENTAL ASSESSf1ENT AND NOTICE OF FINDING OF NO SIGNIFICANT ENVIRONMENTAL IMPACT The U. S. Nuclear Regulatory Commission (the Comission) is planning to issue concurrently with an Amendment of the Director of the Office of Nuclear Reactor Regulation's Order an Exemption relative to Facility Operating License No. DPR-73, issued to General Public Utilities Nuclear Corporation (the licensee), for operation of the Three Mile Islano Nuclear Station, Unit 2 (TMI-2), located in Londonderry Township, Dauphin County, Pennsylvania.

ENVIRONMENTAL ASSESSMENT Identification of Proposed Action: The action being considered by the Commission is the issuance of exemptions from the requirements of 10 CFR 50, Appendix A, General Design Criteria (GDC) 34 and 37. These criteria state requirements for residual heat removal system capabilities and for testing emergency core cooling systems, respectively. On November 6,1984, the licensee submitted Technical Specification Change Request No. 46. This correspondence contains a request to delete the Decay Heat Removal System fromtheTHI-2ProposedTechnicalSpecifications(PTS).

Review of the PTS by staff resulted in a list of questions forwarded to the licensee on February 6,1985.

In response to those questions, the licensee considered that exemptions to GDC 34 and 37 were appropriate. These exemptions were requested in the licensee's letter dated March 26, 1985.

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The Need for the Action: The exemptions are warranted because of the successful use of the loss-to-ambient cooling mode at TMI-2 for residual heat removal. This is a passive method for removing decay heat and there-fore it is very stable. The licensee also proposed in Technical Specification Change Request 46 to have available a Reactor Building Sump Recirculation System (RBSRS) to be used in the case of an unisolable leak.

When considering the current status of the TMI-2 core and the amount of time that would be available to install the RBSRS, an in-place, routinely tested emergency core cooling is not necessary. The licensee has proposed to test the major system components separately to ensure that if they are needed, they will function properly.

In-place testing is not desirable because of the risk of spread of radioactive contamination and because of radiation exposures to the workers.

Environmental Impacts of the Proposed Actions: The staff has evaluated the subject exemptions and concluded that they will not result in significant increases in airborne or liquid radioactivity inside the reactor building or in corresponding releases to the environment. There are also no non-radiological impacts to the environment as a result of this action.

Alternative to this Action: Since we have concluded that there is no sig-nificant environmental impact associated with the subject exemptions, any alternatives to this change will have either no significant environmental impact or greater environmental impact. This would not reduce significant

environmental impacts of plant operations and would result in the appli-cation of overly restrictive regulatory requirements when considering the unique conditions of TMI-2.

Agencies and Persons Consulted: The NRC staff reviewed the licensee's request and did not consult other agencies or persons.

Alternate Use of Resources: This action does not involve the use of resources not previously considered in connection with the Final Program-matic Impact Statement for THI-2 dated March 1981.

Finding of No Significant Impact: The Commission has determined not to prepare an environmental impact statement for the subject exemptions.

Based upon the foregoing environmental assessment, we conclude that~ this action will not have a significant effect on the quality of the human environment.

For further details with respect to this action see; (1) Letter to B. J.

Snyder, USNRC, from F. R. Standerfer, GPUNC, Technical Specifications Change Request No. 46, dated November 6,1984,(2) Letter to F. R. Standerfer, GPUNC, from B. J. Snyder, USNRC, NRC Questions on Technical Specifications Change Request No. 46, dated February 6,1985, (3) Letter to B. J. Snyder, USNRC, from F. R. Standerfer, GPUNC, Technical SpecificationsChangeRequestNo.46(responsetoNRCquestions), dated March 27,1985,and(4)LettertoB.J.Snyder,USNRC,from F. R. Standerfer.,GPUNC, General Design Criteria 34 and 37, dated March 26, 1985.

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4 The above documents are available for inspection at the Commission's Public Local Document Room, 1717 H Street, N.W., Washington, DC, and at the Commission's Local Public Document Room at the State Library of Pennsylvania, Government Publications Sectio.1, Education Building, Comon-wealth and Walnut Streets, Harrisburg, Pennsylvania 17126.

FOR THE NUCLEAR REGULATORY COMMISSION W(. -- - J

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BeWiard JISn'yd

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July 31, 1985 Docket No. 50-320 Decketing and Service Section Office of the Secretary of the Commission

SUBJECT:

Three Mile Island Nuclear Station Unit 2 Operating License No. DPR-73 Environmental Assessment and Notice of Finding of No Stanificant Impact Two signed originafs of the Federal Hegister Notice identified below are enclosed for your transmittal to the Offx:e of the Federal Register for publication. Additional conformed copies (

)of the Notice are enclosed for your use.

O Notice of Receipt of Application for Construction Permit (s) and Operating Uconse(s).

i l-O Notice of Receipt of Partial Application for Construction Permit (s) and Facility Ucense(s): Time for 1

Submission of Views on Antitrust Matters.

O Notice of Availability of Applicant's Environmental Report.

O Notice of Proposed issuance of Amendment to Facility Operating Ucense.

O Notice of Rece;pt of Application for Facility Ucense(s); Notice of Availability of Applicant's Environmental Report; and Notice of Consideration of Issuance of Facility Ucense(s) and Notice of Opportunity for Hearing.

O Notice of Availability of NRC Draft / Final Environmental Statement.

O Notice of Umited Work Authorization.

O Notice of Availability of Safety Evaluation Report.

O Notice of lasuance of Construction Permit (s).

O Notice of issuance of Facility Operating Ucense(s) or Amendment (s).

50 Other: Environmental Asseit9ent and Natien of Finding of No Significant Impact 9

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Enclosure:

As Stated

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NUCLEAR REGULATORY COMMISSION h,

WASHINGTON. D.C. 20555 Docket No. 50-320 August 8,1985 Docketing and Service Section Office of the Secretary of the Commissiop

SUBJECT:

Three Mile Island Nuclear Station, Unit 2 Operating License No. DPR-73 Amendment of Order for Changes to Proposed Technical Specifications Two signed originals of the Federal Register Notice identified below are enclosed for your t ansmittal to the Office of the Federal Register for putWication. Additional conformed copies (

)of the Notice are enclosed for your use.

O Notice of Receipt of Application for Construction Permit (s) and Operating Ucense(s).

O Notice of Receipt of Partial Application for Construction Permit (s) and Facility Ucense(s): Time for Submission of Views on Antitrust Matters.

O Notice of Availability of Applicant's Environmental Report.

O Notice of Proposed Issuance of Amendment to Facility Operating Ucense.

d O Notice of Receipt of Application for Facility Ucense(s); Notice of Availability of Applicant's Environmental Report; and Notice of Consideration of issuance of Facility Ucense(s) and Notice of Opportunity for Hearing.

O Notice of Availability of NRC Draft / Final Environmental Statement.

i O Notice of Umited Work Authorization.

O Notice of Availability of Safety Evaluation Report.

O Notice of issuance of Constructen Permit (s).

O Notice of issuance of Facility Operating Ucense(s) or Amendment (s).

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Bernard J. Snyder Program Girector

Enclosure:

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