Electronic Code of Federal Regulations
We invite you to try out our new beta eCFR site at
https://ecfr.federalregister.gov. We have made big
changes to make the eCFR easier to use. Be sure to leave feedback using the Feedback button on the bottom
right of each page!
|
e-CFR data is current as of April 8, 2021 |
Title 40 → Chapter I → Subchapter D → Part 141 → Subpart F → §141.55 |
Title 40: Protection of Environment
PART 141—NATIONAL PRIMARY DRINKING WATER REGULATIONS
Subpart F—Maximum Contaminant Level Goals and Maximum Residual Disinfectant Level Goals
§141.55 Maximum contaminant level goals for radionuclides.
MCLGs for radionuclides are as indicated in the following table:
| Contaminant | MCLG |
|---|---|
| 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. |
| 4. Uranium | Zero. |
[65 FR 76748, Dec. 7, 2000]