Dose Assessment of LANL-Derived Residual Radionuclides in Soils within C Tracts (C-2, C-3, and C-4) for Land Transfer Decisions
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
In 2015, soil sampling for radiological materials was conducted within Tract A-16-b specifically for land conveyance decisions. Measurements of radionuclides in soil samples were evaluated against a recreational use scenario, and all measurements were below screening action levels for each radionuclide. The total estimated dose was less than 1 mrem/y (< 10 μSv/y) for a hypothetical recreational user (compared to an action level of 15 mrem/y (150 μSv/y). Dose estimates were based on the 95% upper confidence limits for radionuclide concentrations within the tracts. Additionally, dose estimates less than 3 mrem/y are considered to be As Low As Reasonably Achievable, so no follow-up analysis was conducted. Release of this property is consistent with the requirements of DOE Order 458.1 and Los Alamos National Laboratory Policy 412.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1186033
- Report Number(s):
- LA-UR--15-24595
- Country of Publication:
- United States
- Language:
- English
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