ML19253A517
| ML19253A517 | |
| Person / Time | |
|---|---|
| Site: | 07106400 |
| Issue date: | 07/06/1979 |
| From: | Michel C NUCLEAR FUEL SERVICES, INC. |
| To: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| NUDOCS 7909100199 | |
| Download: ML19253A517 (3) | |
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! Nuclear Fuel Services, Inc. ERWIN, TENNESSEE 3765Q.. _,
A Subsidiary of Getty Oil Company (615) 743-914 NRC FILE No. 71-6400 e-2 DIN
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mss MD. SECilCH Mr. Charles E. MacDonald, Chief Transportation Branch Division of Fuel Cycle and Material Safety U. S. Nuclear Regulatory Commission Nashington, D. C.
20555
Reference:
(1) Docket 70-143; SNM 124 (2) Letter dated 12/22/78, C. J. Michel to C. E. MacDonald (3) Letter dated 2/26/79, C. E. MacDonald to C. J. Michel (4)
Letter dated 4/26/79, C. J. Michel to C. E. MacDonald (5)
Letter dated 5/30/79, C. E. MacDonald to C. J. Michel (6) NFS-NRC Meeting, Silver Springs, Md., 6/7/79
Dear Mr. MacDonald:
The information requested in reference 5 regarding cur request for an amendment to Certificate of Ccmpliance USA /6400/B()F is submitted in the attached safety analysis in accordance with agreements and discus-sions made at the meeting listed in reference 6.
Your earliest action on this request is appreciated.
Very truly yours,
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Page 1 of 2 ATTACHMENT To Letter Dated July 6, 1979 C. J. Michel to C. E. MacDonald SAFETY ANALYSIS REPORT FOR PLUTONIUM PACKAGING I.
INTRODUCTION Nuclear Fuel Services proposes to utilize the Super Tiger packaging presently licensed by the Nuclear Regulatory Comission as Certificate of Compliance USA /6400/B()F to transport contaminated waste generated in the deccamissioning of its plutonium facility (see NFS Plan for De-consnissioning of Plutonium and Uranium-233 Facilities, dated October 9, 1978). Although the Plan specifies decontamination of equipment prior to packaging, it is anticipated that some packaged objects will contain residual quantities of plutonium in excess of 20 curies. Since the Super Tigar was not licensed to transport more than 20 curies of plutonium in oxide form, NFS requested, in a letter dated December 22, 1978, an amendment to the Certificate to permit the Commission to specifically authorize shipments in excess of 20 curies of plutonium.
In response to that request for amendment, the NRC requested additional information in letters dated February 26, 1979 and May 30, 1979.
This recort consolidates all infomation required for our amendment request relative to the transport of pieces of large equipment contain-ing in excess of 20 curies of plutonium.
II.
SCOPE This report is written to demonstrate that the form of the plutonium to be sealed and packaged in plywood containers within the Super Tiger package is nondispersable and therefore nonrespirable.
III.
WASTE DESCRIPTION AND PREPARATION In the course of decommissioning the NFS plutonium facility, large pieces of equipment such as glove boxes, furnaces, bicwers, ductwork, etc., which will not fit into a 55-gallon drum, will be prepared for dispos al. All such equipment will be decontaminated of any gross quantities of plutonium prior to packaging.
NFS will immobilize any residual contamination and provide the first containment barrier by applying a strippable coating on all exposed contaminated surfaces of equipment and metal scrap.
This coating has elastic properties which minimize cracking and chipping during impact.
It will easily withstand the 150 F temperatures that were experienced within the Super Tiger during the fire test.
It can be applied by brushing, dipping, or spraying, It also has the property of retaining contamination if the coating is removed from the surface.
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Page 2 of 2 All sharp or potentially dangerous objects that protrude from equip-ment will be removed or blunted to eliminate the possibility of these objects piercing their containment.
In arder to effect economies in packaging / shipping and in total land commitment at the burial site, NFS may elect to place smaller metallic scrap, piping, etc., that will not fit into a 55-gallon drum, inside of the larger giovebox and equipment items being packaged for transport.
In this case these smaller objects will be subject to the strippable coat' ng requirements outlined above.
In addition, such objects shall be firmly supported inside the larger pieces by filling the surrounding void spaces inside the larger pieces with packing materials such as foam or vermiculite.
The intent of this procedure is to minimize the chance for penetration of the containment barriers under accident con-di tions.
Combustibles, cleanup materials, and similar items will not be included or shipped in this packaging system.
In no case will objects small enough to fit into a 55-gallon drum be packaged in wooden boxes.
IV.
PLYWOOD CONTAINER DESCRIPTION Plywood boxes will be sized specifically for the gloveboxes and large pieces of equipment to provide for a tight fit, thus minimizing in-ternal movement during transport. All boxes will be rectangular and constructed with 3/4" exterior grade plywood.
Packing materials such as foam or vermiculite will be placed between the contained glovebox and the plywood box for additional protection and support. Also, if the plywood boxes contain large equipment items other than gloveboxes, packaging materials such as foam or vermiculite will be used to fill the void spaces between the equipment and the box.
The plywood containers will be shored with wood within the Super Tiger to minimize movement. Where space permits, dunnage bags will be utilized.
Plutonium content of each box will be limited to 60 grams. The volume of each box will be greater than that of a 55-gallon drum.
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