ML090680833
| ML090680833 | |
| Person / Time | |
|---|---|
| Site: | Plum Brook File:National Aeronautics and Space Administration icon.png |
| Issue date: | 04/15/2009 |
| From: | Glenn C NRC/FSME/DWMEP/DURLD/MDB |
| To: | NRC/FSME |
| Chad Glenn, NMSS/DWMEP (301) 415-6722 | |
| References | |
| TAC J00301 | |
| Download: ML090680833 (4) | |
Text
April 15, 2009 MEMORANDUM TO:
Biweekly Notice Coordinator FROM:
Chad J. Glenn, Project Manager /RA/
Materials Decommissioning Branch Decommissioning and Uranium Recovery Licensing Directorate Division of Waste Management and Environmental Protection Office of Federal and State Materials and Environmental Management Programs SUBJECT REQUEST FOR PUBLICATION IN BIWEEKLY FEDERAL REGISTER NOTICE - NOTICE OF CONSIDERATION OF ISSUANCE OF AMENDMENT TO FACILITY OPERATING LICENSES, PROPOSED NO SIGNIFICANT HAZARDS CONSIDERATION DETERMINATION, AND OPPORTUNITY FOR A HEARING (TAC NO. J00301)
National Aeronautics and Space Administration, Docket Nos. 50-30 and 50-185, the Plum Brook Reactor Facility, Sandusky, Ohio Date of application for amendment: January 9, 2009 Brief description of amendment: The proposed amendment would add a new paragraph to Licenses TR-3 and R-93 requiring that the National Aeronautics and Space Administration assess the residual radioactivity and demonstrate that the stream bed and banks of Plum Brook between Plum Brook Station boundary and Sandusky Bay meet the radiological criteria for unrestricted use specified in 10 CFR 20.1402 prior to terminating Licenses TR-3 and R-93.
Basis for proposed no significant hazards consideration determination: As required by 10 CFR 50.91(a), the licensee has provided its analysis of the issue of no significant hazards consideration, which is presented below:
A.
The proposed amendment to Licenses TR-3 and R-93 does not involve a significant increase in the probability or consequences of an accident previously analyzed.
The accident scenarios applicable to the decommissioning of the Plum Brook Reactor Facility are described in section 3.3 of the Decommissioning Plan for the
2 Plum Brook Reactor. The Decommissioning Plan describes postulated events that could result in a release of radioactive materials from the site and analyzes the radiation dose consequences of these events and demonstrates that no adverse public health and safety impacts are expected from these events.
Radiological assessment of the residual radioactivity in environmental areas involves sampling and performance of surveys. Spot remediation of some areas will be performed to assure that the as low as reasonably achievable criteria are met. These activities will involve handling and movements of minimal quantities of radioactive material and will involve methods and processes similar to those used for onsite radiological decontamination and remediation. Further, since any planned spot remediation will involve the handling of extremely small quantities of radioactive material, the consequences of any postulated accidents will be a small fraction of the consequences of the accidents previously analyzed in the Decommissioning Plan. Therefore, the proposed amendment will not increase the probability or consequences of accidents previously analyzed.
B.
The proposed amendment to Licenses TR-3 and R-93 will not create the possibility of a new or different kind of accident from any accident previously evaluated.
Accidents previously analyzed in the Decommissioning Plan assess different scenarios that could cause the dispersion of radioactive material to the environment. These scenarios arise from dismantlement activities associated with the decommissioning. Assessment of residual radioactivity in Plum Brook involve sample and survey activities that use techniques and processes that are comparable to those used in on-site assessments. In addition, radioactivity that will remain in the environmental areas after License Termination will meet the regulatory criteria for unrestricted use specified in 10 CFR 20.1402. Therefore, no new or different types of accidents are created by this proposed amendment.
C.
The proposed amendment to Licenses TR-3 and R-93 will not involve a significant reduction in a margin of safety.
As discussed previously, the activities that will be performed at the facility are as previously described and evaluated in the accident analyses presented in the Decommissioning Plan. The radiological criteria to be used in applying for termination of the NRC Licenses will remain the same as originally proposed and are consistent with the criteria of 10 CFR 20 Subpart E for unrestricted use. The results of assessments performed by the Licensee will remain subject to review by the NRC for adequate implementation of the license termination criteria.
Therefore, the margins of safety applicable to assessing the long term dose to members of the public from exposure to the facility after termination of the license remain unchanged. In addition, since this amendment does not impact any previously reviewed accident analyses as previously discussed, no margins of safety are affected by this proposed amendment.
3 The NRC staff has reviewed the licensee's analysis and, based on this review, it appears that the three standards of 10 CFR 50.92(c) are satisfied. Therefore, the NRC staff proposes to determine that the amendment request involves no significant hazards consideration.
Attorney for the Licensee: J. William Sikora, Esquire, 21000 Bookpark Road, Mail Stop 500-118, Cleveland, Ohio 44135 NRC Branch Chief: Rebecca Tadesse
3 The NRC staff has reviewed the licensee's analysis and, based on this review, it appears that the three standards of 10 CFR 50.92(c) are satisfied. Therefore, the NRC staff proposes to determine that the amendment request involves no significant hazards consideration.
Attorney for the Licensee: J. William Sikora, Esquire, 21000 Bookpark Road, Mail Stop 500-118, Cleveland, Ohio 44135 NRC Branch Chief: Rebecca Tadesse Distribution: WSnell, RIII TMixon ML090680833 OFC DURLD:MDB DURLD:MDB OGC:nlo DURLD:MDB DURLD:DD DURLD:MDB NAME CGlenn SMichonski JHull RTadesse KMcConnell CGlenn DATE 03/11/09 03/12/09 03/ 23/09 04/2/09 04/ 3/09 4/15/2009 OFFICIAL RECORD COPY