The best place to control organic matter in drinking water is?

Controlling organic matter at the source is crucial for ensuring high-quality drinking water. When organic matter is managed before it enters the treatment process, it can significantly reduce the burden on water treatment facilities. This proactive approach allows for better management of natural organic matter and contaminants present in the source water, which can lead to improved treatment efficiency and reduced costs.

By targeting the source, water utilities can implement strategies such as watershed management, source protection programs, and preventative measures to limit contamination from agricultural runoff, industrial discharges, and other pollutants. This not only helps in maintaining the integrity of the water supply but also supports public health and environmental sustainability.

In contrast, managing organic matter in the treatment plant, while necessary, may not be as effective since treatment processes are designed to address existing contaminants rather than prevent their introduction. Similarly, controlling organic matter at the point of use and in the aqueduct system is often reactive and may not address the root cause of potential issues with water quality. Therefore, focusing efforts on the source is the most effective and strategic approach to minimize organic matter in drinking water.