States have interpreted radionuclide analytical results in a variety of ways including adding and subtracting standard deviations from analytical results. For compliance purposes, how should states interpret analytical results for radionuclides under the
Compliance and reduced monitoring frequencies are determined based on the "analytical result(s)" (141.26(c)(3)). The analytical result is the number that the laboratory reports, not including (i.e. not adding or subtracting) the standard deviation (65 FR 76708, 76727; December 7, 2000).
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