Secondary maximum contaminant levels (SMCLs) are enforceable drinking water standards that are set to protect public welfare.

Question

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Secondary Maximum Contaminant Levels (SMCLs) are non-enforceable guidelines regulating contaminants that may cause cosmetic effects (such as skin or tooth discoloration) or aesthetic effects (such as taste, odor, or color) in drinking water. They are not set to protect public health but rather to address issues affecting the acceptability of drinking water.

Secondary Maximum Contaminant Levels (SMCLs) Are Enforceable Drinking Water Standards