NAC459.8275. Waste containing short-lived radionuclides.

     1. If the radioactive waste does not contain any of the long-lived radionuclides listed in Table 1, classification must be determined based on the concentrations of short-lived radionuclides listed in Table 2. If a radionuclide is not listed in Table 2, it does not need to be considered in determining the class of the waste.

TABLE 2
	Concentration in curies/cubic meter
Radionuclide	Column 1	Column 2	Column 3
Total of all radionuclides with less than 5-year half-life
	700	**	**
H-3	40	**	**
Co-60	700	**	**
Ni-63	3.5	70	700
Ni-63 in activated metal	35	700	7000
Sr-90	0.04	150	7000
Cs-137	1	44	4600

** There are no limits established for these radionuclides in Class B or C wastes. Practical considerations such as the effects of external radiation and the internal generation of heat on the transportation, handling and disposal of the waste will limit the concentrations for these wastes. These wastes are Class B unless the concentrations of other radionuclides in Table 2 result in the waste being Class C independently of these radionuclides.

     2. If the concentration does not exceed the value in Column 1, the waste is Class A.

     3. If the concentration exceeds the value in Column 1, but does not exceed the value in Column 2, the waste is Class B.

     4. If the concentration exceeds the value in Column 2, but does not exceed the value in Column 3, the waste is Class C.

     5. If the concentration exceeds the value in Column 3, the waste is not acceptable for burial at a state-owned disposal area.

     (Added to NAC by Bd. of Health, eff. 4-27-84)