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U.S. Code of Federal Regulations
Regulations most recently checked for updates: May 18, 2025
All Titles
Title 40
Chapter I
Part 141
Subpart G - Subpart G—National Primary Drinking Water Regulations: Maximum Contaminant Levels and Maximum Residual Disinfectant Levels
§ 141.60 - Effective dates.
§ 141.61 - Maximum contaminant levels for organic contaminants.
§ 141.62 - Maximum contaminant levels for inorganic contaminants.
§ 141.63 - Maximum contaminant levels (MCLs) for microbiological contaminants.
§ 141.64 - Maximum contaminant levels for disinfection byproducts.
§ 141.65 - Maximum residual disinfectant levels.
§ 141.66 - Maximum contaminant levels for radionuclides.
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