ML20210P338
| ML20210P338 | |
| Person / Time | |
|---|---|
| Site: | 05000148 |
| Issue date: | 01/28/1987 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20210P070 | List: |
| References | |
| NUDOCS 8702130363 | |
| Download: ML20210P338 (3) | |
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'o UNITED STATES g
[ g NUCLEAR REGULATORY COMMISSION t ; WASHINGTON, D. C. 20555
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT N0. 15 TO FACILITY-OPERATING LICENSE NO. R-78 THE UNIVERSITY OF KANSAS DOCKET NO. 50-148
1.0 INTRODUCTION
The University of Kansas submitted an application, pursuant to 10 CFR 50.90, for a change of status from operating to possession-only for their open-pool-type research and training reactor on September 23, 1986. The application and its supplement, dated November 24, 1986,'
included a description of the current facility status, safety analysis, and revised Technical Specifications, and requested deletion of the requirement to maintain the Physical Security Plan. A separate letter, dated October 23, 1986, requested permission to discontinue implementation of the Emergency Preparedness Plans.
2.0 FACILITY STATUS All special nuclear material and source material have been shipped off-site or transferred to a state license. The only remaining sources of radioactivity at the facility are the reactor components that were activated during reactor operation.
The reactor configuration during the possession-only status will be as follows: the aluminum tank, graphite thennal column, beam port plugs and concrete biological shield will remain installed. The previously-dismantled activated components (control rods and sheaths, grid plate assembly, aluminum angles, and stainless steel bolts) will be stored in a shielded vault in the hot laboratory. Nonactivated reactor components (neutron detection chambers, control rod drive motors, magnets, armatures, rod drive extension rods, and guide tubes) that i
have been previously dismantled will be stored in the reactor facility.
m mgg The Technical Specifications and the administrative organization have ruoa been modified to reflect the possession-only status. Technical o8 Specifications addressing performance, safety, surveillance and
$8 reporting related to reactor operation have been deleted. Technical Specifications addressing monitoring and surveillance, staff and ns e public safety, and related reporting requirements have been retained.
88 n< 3.0 EVALUATION rd Rg Removal and shipment of all fuel assures that the reactor cannot be m a.a. operated. The shipment of other special nuclear material and source material reduces possible exposures and is consistent with the ALARA (as-low-as-is-reasonably-achievable) principle.
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The activated reactor components, which are stored in a shielded vault in the hot laboratory, are accessible only to trained Radiation Safety Service personnel. The exposure rate from these components is 1.75 mR/hr at 1 meter.
The maximum exposure rate is <30mR/hr inside and at the bottom of the empty aluminum tank. The tank has been covered to limit access and reduce exposure rates. The exposure rate directly above the cover is 40 yR/hr above background. Exposure rates at the surface of the biological shield ~ 3ft above floor level are 45 pR/hr above background.
The tank cover and beam port plugs are locked to prevent unauthorized access. The reactor facility will not be open for unrestricted access and shall remain locked at any time authorized personnel are not present. The physical security requirements of 10 CFR 50.35(c) and 10 CFR 73.67 are no longer applicable because all special nuclear .
material and source material have been shipped offsite. The remaining radioactivity is contained in byproduct material generated by past reactor operations and is covered by the surveillance and control requirements of the license.
Similarly, the Emergency Preparedness Plans required by 10 CFR 50.54(q) and Appendix E of 10 CFR 50 are no longer applicable. The remaining byproduct material is in solid form and there is no credible scenario in which byproduct material could be dispersed into the air. This consideration, along with the restricted access addressed above, assures that the radiological emergencies addressed by the Emergency Preparedness Plans cannot occur. The revised Technical Specifications reflect the possession-only status of the reactor facility and will continue to assure the health and safety of the reactor staff and the public.
4.0 ENVIRONMENTAL CONSIDERATION
This amendment involves changes in the installation or use of facility
> components located within the restricted area as defined in 10 CFR Part 20, changes in inspection and surveillance requirements, and relates to safeguards matters or issuance of an approval of a safeguards plan.
The staff has determined that the amendment involves no significant hazards consideration (as discussed below), there is no significant change in the types or significant increase in the amounts of any effluents that may be released offsite, and there is no significant increase in individual or cumulative occupational radiation exposure.
Accordingly, this amendment meets the eligibility criteria for categorical exclusions set forth in 10 CFR 51.22(c)(9) and 51.22(c)(12). Pursuant to10CFR51.22(b),noEnvironmentalImpactStatementorEnvironmental Assessment need be prepared in connection with the issuance of this amendment.
5.0 CONCLUSION
The staff concludes that amendment of this license to a possession-only status is appropriate and that there is no longer any requirement to
, maintain implementation of the Physical Security Plan or the Emergency
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.. Preparedness Plans. We have further concluded, based on the consider-ations discussed above, that: (1) because the amendment does not involve a significant increase'in the probability or consequences of accidents previously evaluated, or create the possibility of a new or different kind of accident from any accident previously evaluated, or involve a significant reduction in a safety margin, the amendment does not involve a significant hazards consideration, (2) there is reasonable assurance that the health and safety of the public will not be endangered by the proposed activities, and (3) such activities will be conducted in compliance with the Commission's regulations, and the issuance of this amendment will not be inimical to the common defense a1d security or the health and safety of the public.
Principal Contributor: John Dosa Dated: January 28, 1987 .
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