ML20247B537

Forwards Request for Addl Info to Complete Review of Decommissioning Plan for Michigan State Univ

ML20247B537
Person / Time
Site:	05000294
Issue date:	03/21/1989
From:	Michaels T Office of Nuclear Reactor Regulation
To:	Wilkinson R MICHIGAN STATE UNIV., EAST LANSING, MI
References
NUDOCS 8903290416
Download: ML20247B537 (5)

Text

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March 21, 1989.

i Docket Noe 50-294 I

Dr. R. E. Wilkinson, Vice President  !

Finance & Operations 1 412 Administration. Building Michigan State University East Lansing, Michigan 48824

SUBJECT:

_ REQUEST FOR ADDITIONAL INFORMATI0fl REGARDING DECOMMISSIONING -  !

MICHIGAN STATE UNIVERSITY In order for us to complete our review of your decommissioning plan, we need additional information as indicated in the enclosure. 'Please feel free I

to call me on 301-492-1102 if you have any questions regarding this request.

Sincerely, i

/s/

Theodore S. Michaels, Project Manager '

Standardization and Non-Power Reactor Project Directorate Division of Reactor Projects .III, IV..

Y and.Special Projects Officefof Nuclear Reactor Regulation

Enclosure:

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Docket No. 50-294' Dr. R. E. Wilkinson, Vice President Finance & Operations 412 Administration Building Michigan State University l

East I.ansing, Michigan 48824

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION REGARDING DECOMMISSIONING -

MICHIGAN STATE UNIVERSITY In order for us to complete our review of your decommissioning plan, we need additional information as indicated in the enclosure. Please feel free to call me on 301-492-1102 if you have any questions regarding this request.  !

Sincerely,

s. J Theodore S..Michaels, Project Manager l Standardization and Non-Power Reactor Project Directorate Division of Reactor Projects .III, IV, Y and Special Projects Office of Nuclear Reactor Regulation

Enclosure:

As stated cc: See next page ,

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Michigan State University Docket No. 50-294 cc: _0ffice of the Mayor 410 Abbott Road ,

East Lansing, Michigan 48823 j SpecialAssistanttothe' Governor (2) -

Office of the Governor j Room 1 - Capitol Building 1 Lansing, Michigan 48909 Dr. Bruce Wilkinson, Assistant Dean College of Engineering .

Division of Engineering Research Michigan State University East Lansing, Michigan 48823 Chief, Division of Radiological Health Department of Public Health  ;

P. O. Box 30035-  !

Lansing, Michigan 48909 I

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ENCLOSURE

1. ' The decommissioning organization and responsibilities, are outlined in Section 1.5 of. the decommissioning plan, however the specific identity of key personne1'and-their personal qualifications,that apply' to the decom-missioning and decontamination are not included.- Submit-the names and personal qualifications for the following positions 'regarding this decom- ,

missioning:- Michigan State University Reactor. Supervisor or.the person who will be in direct control of the facility during the decommissioning -

and decontamination; the members of the Michigan State University Office of Radiation,: Chemical and Biological Safety and the Department of Public Safety who are designated to review decommissioning plans and tasks; the

contractor's Project Manager; Radiological Control Supervisor; Radiologi-cal Control Technicians; Decommissioning Supervisor; and Corporate Health Physicist.

Further, submit signed and dated statements from each of the above indi- ~

viduals acknowledging their understanding of their position with respect.

to decommissioning and decontamination. Each of these statements should include the individual's understanding of the duration of his or her commitment and the percentage of full-time employment anticipated in the fulfillment of these duties.

2. How will the generation and spread of " hot' particles" (microscopic or nearly microscopic radioactive particles with high specific activity) be monitored and controlled?

3. Section 1.6.7 of the decommissioning plan references, among others,

" Guidance and Discussion of Requirements for an Application to Terminate:a Non-Power Reactor Facility Operating License," prepared by the. Standard-ization and Special Projects Branch, U. S. Nuclear Regulatory Commission (September 15,1984). The guidance specifies that a decommissioning plan l should describe an organized means for moving all radioactive components and essentially all radioactivity within the reactor facility.that was covered by the facility operating license. In addition, it specifies that the acceptance criteria being used by the staff for unrestricted use are either 5 micro-Roentgen /hr above background at I meter from the surface or 10 mrem /yr above background, considering reasonable proximity and occupan-cy. In Section 3.3.5 of the decommissioning plan it is stated that the expected dose rate at 1 meter above the opening to the tank cavity will be -

less than 5 micro-R/hr.

Section 3.3.6 then appears to indicate that if the dose rate is as expect- '

ed in Section 3.3.5 and if Table 1 of Regulatory Guide 1.86 is satisfied, Michigan State University intends to fill the reactor cavity with con-crete. The. concrete would be flush with room 184 of the first floor of.

the Engineering Building and fill the reactor tank which is adjacent.to the shop beneath room 184. The apparent intent is to make the reinforcing steel in the concrete beneath the reactor tank (that is radioactive due to neutroncctivation) inaccessible.

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- The NRC staff advises Michigan State University that unless the above

. ' stated dose rate and contamination limits are met with the dose rate measurements taken at 1 meter from'the bottom of.the reactor tank, i.e.,

24 feet 8 inches closer to the bottom than described ,in Section 3.3.5, then filling the reactor tank with concrete would be an exercise of the entombment option. The entombment option requires' appropriate and contin - .

uing surveillance program under a possession-only: license.

How will beta dose rates be measured, and how will skin exposures be 4.

controlled during the decommissioning and decontamination operations?

5. Provide a copy of the contractor Radiological Control. Procedure and supporting materials used ensure that all onsite personnel are properly '

trained and qualified as mentioned in Section 1.7.1. ,

'6. Section 3.3.1 c) does not provide details of the criteria that will'be used to determine whether a submersible shielded container will be used to- 1 place the' rotary specimen rack in its shipping container or whether the

• rack will simply be pulled from the pool and placed directly into the shipping container. Furthernere, no information-is provided-elaborating ALARA' considerations for this step of the operations. Provide details.of l these aspects of the operations.

I- Section 3.3.2 refers to " satisfactory results" of pool water analyses as a L-> 7.

criteria for disposal to'the public sewer system. Provide the specific criteria tti be used.

8. Provide details on the techniques to be used for decontamination.  !

9. What criteria will be applied to determine the need for respiratory. -

protection? How wil.1 these criteria be implemented and users qualified?

10. How will the" dust and radioactive particles'be controlled with respect'to.

. contamination of workers and equipment-in the reactor tank in the presence .  !

of air blown to the bottom of the tank, as described in Section 3.3.9?

11. : Specify the release criteria for the miscellaneous nonradioactive wastes mentioned in Section 6.2. -

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