ML20033E784
| ML20033E784 | |
| Person / Time | |
|---|---|
| Issue date: | 03/08/1990 |
| From: | Lohaus P NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Miller V NRC OFFICE OF GOVERNMENTAL & PUBLIC AFFAIRS (GPA) |
| References | |
| REF-WM-3 NUDOCS 9003140160 | |
| Download: ML20033E784 (3) | |
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yAR 8 1993 1
MEMORANDUM FOR: Vandy L. Miller, Assistant Director for State Agreements Program, GPA FROM:
Paul H. Lohaus, Chief
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Operations Branch l
Division of Low-Level Waste Management and Decommissioning. NMSS l
SUBJECT:
TECHNICAL POSITION ON AERIAL MONITORING I am responding to your Jenuar 22, 1990 inquiry regarding the U.S. Nuclear Regulatory Commission's (NRC) ytechnical position on aerial monitoring of low-level radioactive waste sites to identify existing levels of background radiation.
i NRC has no technical position specific to aerial monitoring. The general intent of NRC's position on preoperational monitoring is stated in Section 3.1.7, i
" Background Radiation Characteristics" of NUREG-1388. Background radiolo ical data are an integral element in establishing baseline data on radiologica characterization of a potential low-level radioactive waste site. Preoperational monitoring. should include measurements of direct gamma radiation and of the concentrations of radioactive material in the air, soil, sediment, surface water, groundwater, and biota.
However, NRC does not address the alternatives for accumulating such data. The choice of data collection methodology is left to the licensee. The licensee should consider the efficacy of the various methods for accumulating the data in view of such issues as the size of area to be analyzed and the cost effectiveness of the different alternatives.
Aerial' monitoring is one approach to collecting measurements of direct gamma radiation. However, this method in and of itself may not be adequate for accumulating all necessary measurements of this type. A more direct approach, which was developed for nuclear facilities in general, and one that may yield more valuable data, is that described in NUREG/CR-2082, " Monitoring for Compliance With Decommissioning Termination Survey Criteria." These measurements may be more appropriate to determine preoperational ambient background levels for eventual comparison to postoperational radiation levels, l
after facility decommissioning, as the basis for license amendment for closure.
The document provides prescriptive information on survey design and implementation.
In the final analysis, each applicant for a low-level radioactive waste site must evaluate the various alternatives on a case-by-case basis. Therefore, we recommend discussion of this issue between the license granting agency and the licensee applicant early in the process of site selection.
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Additional information regarding the design and implementation of a preoperational program for a low-level radioactive waste site is contained in a nunt>er of documents including, but not limited to:
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1.
U.S. Nuclear Regulatory Consnission, NUREG-0902, " Site Suitability, Selection and Characterization," Branch Technical Position, Low. Level Waste Licensing Branch, April 1982; 2.
U.S. Department of Energy, DOE /LLW.13T Rev. 1, "Environnental Monitoring for Low. Level Waste. Disposal Sites," Low. Level Radioactive Waste Management Handbook Series, September 1989; 3.
U.S. Department of Energy, DOE /LLW-67T " Site Characterization Handbook.
National Low. Level Waste Management Program," March 1988; 1
4.
U.S. Nuclear Regulatory Commission, NUREG/CR-5054, "Reconmendations to NRC for Review Criteria for alternative Methods of Low. Level Radioactive Waste Disposal: Environmental Monitoring and Surveillance Programs,"
Battelle Pacific Northwest Laboratory, July 1988; 5.
U.S. Nuclear Regulatory Consnission, Title 10, Code of Federal Regulations, Part 61, " Licensing Requirements for Land Disposal of Radioactive Waste";
6.
U.S. Nuclear Regulatory Commission, NUREG.1388, " Environmental Monitoring of Low. Level Radioactive Waste Disposal Facility," Office of Nuclear Material Safety and Safeguards, Decenter 1989; 7.
U.S. Nuclear Regulatory Consnission, Regulatory Guide 4.15, Rev.1, l
" Quality Assurance for Radiological Monitoring Programs (Normal Operations). Effluent Streams and the Environment," February 1979.
i If you have any questions regarding this response, please contact Larry W. Camper at (301) 492-0579.
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- g ggg Paul H. Lohaus, Chief Operations Branch Division of Low. Level Waste Management and Deconunissioning, NMSS Distribution
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