ML20055H384

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Identifies Proposed Method,Estimated Costs & Assurance of Funding for Reactor Decommissioning,Per 10CFR50.75. Currently,Decon Method of Decommissioning,Per NUREG-0586 Proposed
ML20055H384
Person / Time
Site: University of Buffalo
Issue date: 07/23/1990
From: Rennie D
NEW YORK, STATE UNIV. OF, BUFFALO, NY
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RTR-NUREG-0586, RTR-NUREG-586 NUDOCS 9007260130
Download: ML20055H384 (2)


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j UNIVERSITYAT BUFFALO vfd'La n g j

STATE UNIVERSITY OF NEW YORK and Gradu at o Bufh New huk N2tc 1

Telephreit: A6)h2W j

July 23, 1990 l

United States Nuclear I

-Regulatory Commission Document Control Desk P137 1 Whiteflint North

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11555 Rockville Pike 3

Rockville, MD 20852

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Gentlemen The pucoose of this letter is to identify, pursuant to 10 CFR i

50.75, the pcoposed method and estimated cost, and to provide i

assurance of fwding for the decommissioning of the non-power

. nuclear reactor located at the State University of New York at Buffalo, Buffalo Matec.ials Research Center.

Reactor Description

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The BMRC reactor is a two megawatt open pool reactor, and is approximately 30 years old.

It utilizes 6% enriched Uranium Dioxide Fuel.

It is operated approximately 5,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> per year, almost exclusively at full power.

The reactor resides in a 30 foot deep, aluminum lined concrete tank, and is surrounded by a full containment (approximately a 186,000 cubic foot cylinder).

The reactor is cooled by force convection.

There is no pressure jacket, other cooling loop components include a 5,000 gallon N-16 hold up tank, an aluminum shell and tube heat exchanger, primary and secondary loop coolant pumps, and a forced draft evaporative cooling tower.

Separate demineralization loops

.are utilized to provide make-up water and to purify the existing reactor coolant.

Radioactivity is confined to the primary circulating and clean-up demineralizer loops only.

Support facilities are housed in the attached laboratory wing which houses offices, low level laboratories, a machine shop, and physical plant equipment, such as building heating and ccoling.

Within containment there is a fully equipped Hot Cell and three " warm cells" used to remotely handle mildly radioactive samples.

The reactor is utilized primarily for radiation damage and other materials studies, neutron activation analysis, isotope production, and for nuclear component testing and qualification.

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Proposed Method We currently propose to utilize the "DECON" method of decommissioning as prescribed in NUREG 0586.

We estimate that the i

approximate one year period of planning required to accomplish the reactor decommissioning would allow for adequate decay of short-j lived nuclides, thus keeping worker exposures acceptably low.

Estimated Cost We estimate that the cost for the DECON will be approximately 8

million dollars (1986 constant dollars).

The primary uncertainties in this cost are the cost for shipping irradiated fuel off-site, the cost for low level waste disposal, and the accepted levels of residual contamination (to be determined by the Commission).

Adjustments to this estimate will be made whenever i

major reactor modifications and performed, when further guidance is available from the NRC, or when significant changes occur such as in the cost for low level waste disposal.

Method of Assurance State University of New York at Buffalo is a four year.

institution within the State University of New York system.

Therefore, pursuant to 10 CFR 50.75. (e) (2) (iv) when necessary, we will request that the funding required to accomplish the decommissioning be included in our budget.

Sincerely yours, U i ! &Q l

Donald W. Rennie, M.D.

Vice Provost for Research and Graduate Education xc:

President Steven B.

Sample Provost William Greiner Vice President Dale M. Landi l

Vice President Ronald Stein l-Vice President Robert Wagner L

Mr. Louis G. Henry j,

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