40 CFR 141.55 - Maximum contaminant level goals for radionuclides.
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MCLGs for radionuclides are as indicated in the following table:
|1. Combined radium-226 and radium-228||Zero.|
|2. Gross alpha particle activity (excluding radon and uranium)||Zero.|
|3. Beta particle and photon radioactivity||Zero.|
[65 FR 76748, Dec. 7, 2000]
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.