What is the maximum contaminant level (MCL) for HAA5?

The maximum contaminant level (MCL) for HAA5 (Haloacetic Acids) is set at 0.060 mg/l, which reflects the safety threshold established to protect human health from potential risks associated with exposure to these disinfection byproducts in drinking water. The MCL is determined through comprehensive risk assessments and research regarding the health effects associated with long-term consumption of these compounds. HAA5 includes five specific haloacetic acids formed by the reaction of chlorine with organic matter in the water, and maintaining levels at or below this threshold helps to minimize health risks, including the potential for cancer and other adverse effects. Thus, the established MCL plays a critical role in water treatment processes and public health protection.