What is the MCL for haloacetic acids (HAA5) in surface water systems?

The maximum contaminant level (MCL) for haloacetic acids (HAA5) in surface water systems is set at 0.06 mg/L. This standard is established to protect public health, as HAA5 are a group of disinfection byproducts that can form when chlorine reacts with organic matter in water. Long-term exposure to HAA5 has been associated with potential health risks, including an increased risk of certain cancers and reproductive effects.

The regulation of HAA5 at this level ensures that water treatment facilities monitor and control the concentration of these compounds, maintaining water quality and safety for consumers. Understanding the MCL is crucial for water operators and public health officials in their efforts to manage water quality and ensure compliance with environmental regulations.