ML20055F915

Forwards Request for Addl Info Re Conversion of Reactor to Low Enriched U.Resubmittal of Accident Analysis Using Stated Info from 1984 SAR Requested

ML20055F915
Person / Time
Site:	University of Missouri-Rolla
Issue date:	07/17/1990
From:	Alexander Adams Office of Nuclear Reactor Regulation
To:	Bolon A MISSOURI, UNIV. OF, ROLLA, MO
References
NUDOCS 9007190360
Download: ML20055F915 (4)

Text

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Dr. Albert E. Bolon Director Nuclear F.eactor Facility University of Missouri - Rolla

. .Rolla, Missouri' 65401

Dear Dr. Bolon:

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SUBJECT:

REQUEST FOR' ADDITIONAL.INFORMATION .

i

+ We are continuing our review of your submittal of November 16,.1988, as supplemented on May 8,1990 for conversion of the University of Missouri -

Rolla Research Reactor to low enriched uranium (LEU) fuel in accordance with

10 CFR 50.64. During our review of your application for conversion, questions have arisen for which we require additional information and clarification.

Please provide responses to the enclosed Request for Additional Information within 30 days of the date of this letter. Following receipt of the

!. additional. information we will continue our evaluation of your application.

P If you have-any questions regarding this review, please contact me at'(301)  :

L 492-1127.

L The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required-under P.-L. 96 511.

y' Sincerely l /S/

l Alexander Adams, Jr., Project Manager. i Non-Power Reactor, Decommissioning and L. . Environmental Project Directorate Division of Reactor Projects . III, IV, V.and Special Projects R ", Office of Nuclear Reactor ~ Regulation m

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c4" Docket No. 50-123 -  ;

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Dr. Albert E. Bolon, Director Nuclear Reactor- Facility.

University of Missouri - Rolla i Rolla, Missouri 65401

SUBJECT:

, REQUEST FOR ADDITIONAL INFORMATION ,

'We ard continuing our review of.yov submittal of November-16,1988,'as i supplemented on May 8, 1990.for conversion of the University of Missouri -

~RollaResearchReactortolowenricheduranium(LEU)fueliraccordancewith-10 CFR 50.64. During our review of your application forl conversion, questions have arisen for which we require additional information and clarification. >

.Please provide responses to the. enclosed Request:for Additional.Information .'

within 30 days of,the date of-this letter. Following receipt of the additional information we will. continue our evaluation of.your application.

• If you have'any questions regarding-this review, please contact me at (301) 492-1127.

The reporting and/or recordkeeping requirements contained in this letter- i affect fewer than ten respondents; therefore, OMB clearance is not required. -l Junder P.:L.96-511.

Sincerely l

Y4 . m Alexander A.iams, Jr., Proj c anager s Non-Power Reactor,' Decommi oning and Environmental Project Directorate Division of Reactor Projects - III, IV, Y and Special Projects- .

Office of Nuclear Reactor Regulation-

Enclosure:

'As' stated

cc.w/ enclosure See next page-t

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REQUEST FOR ADDITIONAL INFORMATION UNIVER$1TY OF MISSOURI AT ROLLA DOCKET NO. 50-123  ;

1. Our question No. 4 from our February 8,1990 request for additional information has.been misinterpreted. We believe that the 1.5% delta k/k insertion for the fuel handling accident is credible. Your introduction to'_the accident in your 1984 Safety Analysis Report (SAR) along with' the.

e analysis in your HEU to LEU conversion application result in a complete analysis. Please resubmit the accident analysis using-information contained on pages 9-13 and 9-14 through the middle of the second

+

paragraph from your 1984 SAR and the information on pages 9-14 through 9-16 of your conversion submittal. -This analysis should include table XV from your May 8,1990 submittal.

2. Our- question ~ No. 5 from our February 8,L1990 request for additional information discusses the applicability of Part 100 to research-

. reactors. Part 100 is not applicable to research reactors. Your license Tenewal analysis was not deemed appropriate by the NRC staff. In our SafetyEvaluationReport(NUREG-1086)fortherenewalofyour operating license, the staff performed an independerit analysis of the maximum hypothetical accident based on Part 20. This-was done because your_ analysis has based on Part 100. However, we agree with your assertion that this accident is not impacted by the conversion to LEU fuel. We requested the. changes to make your SAR consistent with the regulations.

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University of Missouri Docket No. 50-123~

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I cc: 'A-95 Coordinator Division of Planning

-Office of Administration P. O. Box 809 State Capitol Building Jefferson City, Missouri -65101 Don L. Warner, Dean School of Mines & Metallurgy 305 McNutt Hall University of Missouri-Rolla Rolla, Missouri 65401 Mr.- Milan K. Straka Reactor Manager' .

. Nuclear Reactor Facility.

University of Missouri-Rolla Rolla, Missouri 65401 t j. -

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