ML20028H661

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Safety Evaluation Supporting Amend 12 to License R-92
ML20028H661
Person / Time
Site: 05000192
Issue date: 01/16/1991
From:
Office of Nuclear Reactor Regulation
To:
Shared Package
ML20028H659 List:
References
NUDOCS 9101240340
Download: ML20028H661 (2)


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. SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING' AMENDMENT NO.-12 TO FACILITY LICENSE NO. R-92 THE-UNIVERSITY OF TEXAS DOCKET NO. 50-192 1.0- INTRODUCTION Bynletter' dated October 19,--1990, the University of Texas (the licensee) submitted an application which requested license renewal to a possession-cnly license for their research reactor' facility. The requested license expiration date is Februory 12,-1993. The reactor is aermanently shutdown and the license is currently to possess, but not operate, tie facility. The license change is to allo _w sufficient time to-implement their deconsnissioning plan and. terminate the. license.

2.0 FACILITY STATUS l

Operation of the University of Texas TRIGA Mark I reactor was terminated on Aprilf29, 1988. The radioactive reactor fuel is currently stored in the reactor pool-prior to transfer to the licensee's new TRIGA reactor facility.

After the fue11 transfer, the Mark I reactor facility will be deconunissioned.

To maintain the rear: tor-in a safe condition,land'to store the fuel until

-transfer, the. licensee has requested'that a possession-only license be granted.

A11= special nuclear materiel and. source materia 11are possessed under applicable -

-10 CFR Parts 30, 50 and 70 licenses. The reactor core and the reactor components p

.that were activated during reactor operation remain at-the facility. The reactor-fuel is stored in the reactor pool in-a non-operable configuration.

JThe aluminum tank, reactor and grid plate structures, disconnected control rods, graphite reflectors and instrument tubes remain installed.

The previously J

~ dismantled activated components,.e.g. -pneumatic transfer tube and other ' angle-

-elenent experiment ~ tubes, are stored in the radiologically controlled laboratory.

lThe.nonactivated control rod drive motors, magnets,_and armatures have been refurbished and reinstalled at.the University of Texas Balcones Research Center for use in their new reactor facility.

3.0 EVALUATION l

The storage and configuration requirements-for the fuel assure that the l

reactor c6nnot be operated. The storage and planned transport of the fuel, L

9101240340 910116 PDR ADOCK 05000192

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. and other special nuclear material and scurace material in accordance with the Dismantling Order dated March 9, 1987, reduces possible ex consistent with the ALARA (as-low-as-is-reasonably-achievable)posures and is principle.

Similarly, the storage and dismantling of the activated reactor components, which are stored in the hot _ laboratory, have been determined to be acceptable in accordance with the dismantling order.

Further, the reactor facility will not be opened _for unrestricted access and shall remain locked at any time authorized personnel are not present.

The license has been amended to reflect possession-only status, and does not allow operations.

Further, the Technical Specifications and the administrative organization reflect the possession-only status. Technical Specifications addressing reactor operations have been indicated as not applicable by the licensee. Technical Specifications for the possession-only license for monitoring and surveillance, staff and public safety, and related reporting requirements have been retained.

4.0 ENVIRONMENTAL CONSIDERATION

The Commission has prepared an Environmental Assessment and finding of No Significant Environmental Impact Notice which was published in the FEDERAL REGISTER on January 15, 1991 (56 FR 1544),

for the renewal of facility License No. R-92 and has concluded that this action will not have a significant_effect on the quality of the human environment.

5.0 CONCLUSION

The staff concluded that the permanently shutdown, inoperable reactor can be maintained in a possession-only mode in a safe manner while-decommissioning plans are implemented. We have further concluded, based on the considerations discussed above, that:

(1) because the amendment does not involve a significant increase in the probability or consequences of accidents previously evaluated, or create the possibility of a new or different kind of accident from any accident previously evaluated, and does not involve a significant reduction in a margin l-of safety, the_ amendment does not inycive a significant hazards consideration, (2)_there is reasonable assurance that the health and safet l

will not be endangered by the proposed activities, and (3) y of the public such activitics will be conducted in compliance with the Commission's regulations and the issuance of this amendment will not be inimical to the common defense and security or the health and safety of the public.

Principal Contributor: Marvin M. Mendonca l

Dated: January 16, 1991 y

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