What is the Primary Drinking Water Standard defined by?

The Primary Drinking Water Standard is defined by 40 CFR 141. This regulation, part of the Code of Federal Regulations, establishes the legally enforceable standards for contaminants in drinking water that may adversely affect human health. It encompasses a range of pollutants, including microorganisms, disinfectants, disinfection byproducts, inorganic and organic chemicals, and radionuclides.

The significance of these standards lies in their focus on protecting public health by limiting the levels of certain harmful substances in drinking water. Ensuring compliance with these standards is vital for water utilities to maintain safe drinking water and safeguard consumers from potential health risks associated with waterborne contaminants. Understanding this regulation is crucial for water quality professionals in their analysis and monitoring tasks.