What is the maximum contaminant level for THMs?

The maximum contaminant level (MCL) for trihalomethanes (THMs) is established by the Environmental Protection Agency (EPA) to protect public health. Trihalomethanes are a group of chemicals that can form when chlorine used for disinfection reacts with organic matter in water. The MCL for THMs is set at 0.080 mg/l, which indicates the concentration limit that can be present in drinking water to ensure it is safe for consumption.

This standard is based on health assessments that evaluated the risks associated with exposure to THMs, reinforcing the need for water systems to monitor and manage these compounds effectively. Compliance with this MCL is crucial for maintaining water quality and safeguarding the health of the community.