ML20042G586

Requests Suppl to 900326 Application for Amend to Remove Requirement for Maintaining Radiological Contingency Plan within 30 Days of Ltr Date.Licensee Failed to Evaluate Max Dose to or Intake of Soluble U by Individual at Boundary

ML20042G586
Person / Time
Site:	07000371
Issue date:	05/09/1990
From:	Bidinger G NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:	Gregg R UNITED NUCLEAR CORP. (SUBS. OF UNC, INC.)
References
NUDOCS 9005150110
Download: ML20042G586 (2)

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UNITED STATES

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NUCLEAR REGULATORY COMMISSION

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WASHINGTON, D. C. 20555

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i Docket No.70-371 License No..SNM-368 c

~UNC. Inc.

i UNC Naval Products Division ATTH:

Mr. Robert.Gregg,. Director Technical Services 67 Sandy Desert Road Uncasville, Connecticut 06382-0981 Gentlemen:.

By. application _ dated March 26, 1990, UNC, Inc., requested that the license be amended to remove the requirement for maintaining a Radiological Contingency Plan as stated in Condition 23.

Inaccordancewith10CFR70.22(1)(1)(1),UNC provided an evaluation to show that an emergency plan is not required.

Section i

'/0.22(1)-a110ws the submittal of an evaluation in lieu of an emergency plan

-provided that.the evaluation shows that the maximum dose to a member of the

_public offsite due to a release of radioactive materials would not exceed 1 rem effective dose equivalent or an intake-of.2 milligrams of soluble uranium,

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In the evaluation, UNC stated that an individual at the nearest residence

-would be shielded from direct radiation produced by the accidental nuclear criticality described in Regulatory Guide 3.34, " Assumptions Used for Evaluating the Potential Radiological Consequences of Accidental Nuclear Criticality in a Uranium Fuel Fabrication Plant." UNC concluded that the -

radioactive materials produced by the' excursion and subsequently released into the atmosphere would result in a whole-body dose well below 1 rem.

Furthermore, o^

UNC added that an onsite release of soluble uranium would not_ result in an intake of 2 mg of soluble uranium by an individual offsite.

JWe have reviewed the evaluation and concluded that UNC has not evaluated the

. max imum dose to or intake of soluble uranium by an individual at the site

-boundary.

Therefore, within.30 days from the date of this letter, UNC is requested to submit a supplement to the application evaluating the max imum

' dose to and intake of-soluble uranium by an individual at the site boundary.

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The evaluation should address creditable scenarios involving inadvertent criticalities as well as releases of soluble uranium in' areas where licensed I 0

material is' handled or stored.-

The supplement should provide suffic'ent details for each scenario to allow an independent review.

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If you have 'any~ questions regarding this matter, please contact-Mr. Scott Pennington of my staff on (301).492-0693.

Sincerely, h'

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George H. B1dinger, Section Leader-Uranium Fuel Section Fuel Cycle Safety Branch Division of-Industrial and _

t Medical Nuclear Safety, NMSS Distribution-Docket 4.T/1

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