OAR 345-050-0020. Exempt Concentrations

(1) Materials that contain radionuclides in concentrations below the applicable concentration identified in Table 1 are not radioactive waste for purposes of ORS 469.525 and these rules. Additionally, wastes with the following characteristics are considered to contain exempt concentrations: (2) Radium-bearing materials containing less than 5 picocuries of radium-226 per gram of solid, regardless of quantity, (3) Thorium-bearing materials containing less than 20 picocuries of radium-228 per gram of solid, if the radium-228 is present with the parent thorium-232, regardless of quantity, or (4) Lead-210-bearing wastes which are not in equilibrium with uranium-238, are the result of fossil fuel-related production including refining, transport, or storage, and contain less than 10 picocuries per gram of solid regardless of quantity. [ED. NOTE: The Table referenced in this rule is not printed in the OAR Compilation. Copies are available from the agency.]