What Does SMCL Stand For?

SMCL stands for Secondary Maximum Contaminant Level

SMCL, or Secondary Maximum Contaminant Level, refers to non-enforceable guidelines established by the Environmental Protection Agency (EPA) for contaminants in drinking water that may adversely affect the aesthetic qualities, such as taste, odor, or appearance, rather than health. These levels are intended to provide guidance for water systems to maintain water quality and ensure consumer satisfaction while promoting public health.