ML19320B960

Forwards Final Decommissioning Rept,Or State Univ AGN-201 Reactor,License R-51. Describes Changes to Physical Security Plan Required in Conjunction W/Decommissioning

ML19320B960
Person / Time
Site:	05000106
Issue date:	07/10/1980
From:	Wang C Oregon State University, CORVALLIS, OR
To:	Reid R Office of Nuclear Reactor Regulation
Shared Package
ML19320B961	List: ML19320B960 ML19320B964
References
NUDOCS 8007150559
Download: ML19320B960 (3)

Text

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7 r 3 E". cervauis, oteson smi = wm Radiation Center University, July 10, 1980 U.S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulatio..

Division of Project Management Operating Projects Branch 4 Washington, D.C. 20555 Attention: Robert W. Reid, Branch Chief

Subject:

Cecommissioning of the Oregon State University AGN-201 reactor, License No. R-51, Docket No. 50-106; changes to the AGN-201 physical .ecurity plan; request for termination of the AGN-?)1 license.

Centl ecen :

The decommissioning of the Oregon State University AGN-201' reactor ha; baan :uccessfully completed. Tue project .<:: c:r-fed out in accor-dance with the Commission's Order authorizing cumanciing, dated March 8,1979, and our NRC approvec Dismantlinn and Disposal Plan, dated December 1978. The decommissioning went very smoothly and according to our schedule, and radiation levels were extremely low. ,

In compliance with the requirement specified in the above referenced Commission Order, we are enclosing the Final Decommissioning Report for the Oregon State University AGN-201 Reactor, dated July 9,1980. We hope you find the report to be satisfactory.

In conjunction with the AGN decommissioning, several changes to the reactor's physical security plan were c equired. These changes were re-viewed individually by the physical security staff and the Reactor Operations Comittee, and were found to be acceptable since they in no way decreased.the safeguards effectiveness of the AGN physical sec *ity pl an . These changes are hereby reported to the NRC, as required by '

CFR50.54(p).

a. Change 1: As noted on page 11 of the OSU dismantling plan of December 1978, removal of a chain link fence associated with reactor physical security and access control was re-quired. This was necessary to provide working space for /

the disassembly operation. While the locked fence was in plO M place, the two doors to the room housing the AGN reactor 5 THIS DOCUMENT CONTAINS g o o 7150~ Y POOR QUALITY PAGES Oregon State Umversi:y is an Affirmative Action / Equal C:po.wnity Employer

USNRC July 10,1980 (and other teaching equipment) were kept unlocked during the normal 8:00 a.m. to 5:00 p.m. workday. Also, the alarm circuit to Campus Security for the motion detector in the A3N room was inactivated during the stated time interval. However, on weekends and after normal working hours, the doors to the AGN room were kept locked and the motion detector alarm system was activated. To compensate for temoval of the AGN area fence, it was decided that both doors to the AGN room would be kept locked at all times, thus providing a higher level of security for the reactor area than was provided during previous 8:00 a.m.

to 5:00 p.m. workday intervals. During disassembly, the motion detector alarm procedure remained unchanged (i .e.,

inactive from 8:00 a.m. to 5:00 p.m. on workdays, active at all other times).

b. Change 2: The disassembly project had as its final ob-jective the removal of all AGN components from the AGN reactor room. Upon completion of this project, the fueled components (the control rods and the core) would be stored according to the dismantling plan in the TRIGA reactor room under the protection of the TRIGA physical security pl an . The Ra-Be startup source would be locked in the Radiation Center source storage facility, and all other

, components would be removed to on-campus warehouse storage.

Since the AGN room would then contain no reactor components, and since the special nuclear material from the AGN would be as well or better protected for physical security purposes while in the TRIGA facility, it was concluded that no de-crease in AGN security would be created by deactivating the motion detector and dropping the requirement for locking the AGN room doors. When the cecommissioning was completed, all components removed as indicated, and the exterior wall rebuilt with concrete blocks, this latter action concerning the door 4

locks and motion detector was implemented.

The current status of the AGN-201 components is as follows:

a. The core and all control rods are stored in the TRIGA reactor roon according to our dismantling plan. The core is stored in a specially built and locked container within the TRIGA room, while all the control rods are stored in a 12 foot deep, locked, storage pit also in the TRIGA room. All fueled com-ponents are under the protection of the TRIGA physical security plan.

USHRC July 10,1980

b. The nominal-10 mci Ra-Be startup source is stored in the locked source storage facility in the Radiation Center.

Authorization to possess this source outside the AGN-201 reactor has been arranged on our State of Oregon radio-active materials license ORE-0005-3.

c. All other reactor components have been crated and moved.to an on-campus warehouse for storage.

In view of the current status of our AGN-201 reactor compcnents, we would like to formally submit the following requests:

a. Transfer all AGN-201 fueled components (i.e., the control rods and the core) from the AGN license no. R-51, docket no. 50-106, onto the Oregon State University TRIGA reactor license no. R-106, docket no. 50-243, for possession only.

The special nuclear material involved totals approximately 656 grams of uranium-235 at an enrichment of approximately 19.79%.

b. Terminate the existing AGN-201 license no. R-51, docket no.

50-106. ,

We hope the information suc;1!ed by this latter and the attached report is sufficient to allow you to proceed with the termination of the AGM-201 license. Mcwr/er, there are questions , ;: lease let ce know, as we would appreciate being able to fully utilize the space formerly occupied by the AGN as soon as reasonably possible.

Thank you for your assistance throughout this action.

Yours sincerely, C.H. Wang Reactor Administrator Director CHW/mks cc: USNRC, Office of Inspection and Enforcement, Walnut Creek, CA USNRC, Document Management Branch, Washington, D.C.

Oregon Department of Energy A.G. Johnson, Senior Health *h fsicist, OSU J.C. Ringle, Assistant Reacer administrator, OSU -

T.V. Anderson, Reactor Supervisor, OSU i-