What is the main purpose of monitoring coliform in public water systems?

The primary purpose of monitoring coliform bacteria in public water systems is to detect potential health hazards. Coliform bacteria are indicator organisms that can signify the presence of harmful pathogens in drinking water. Their presence suggests that the water has been contaminated, potentially due to issues such as inadequate treatment or a breach in the water supply system.

Detecting coliforms allows water operators to take necessary precautions to protect public health, confirming whether any microbial contaminants are present that could lead to waterborne diseases. If coliform levels exceed acceptable limits, this prompts further testing and possible corrective actions to ensure safe drinking water. Thus, regular monitoring is crucial in safeguarding public health and ensuring the water meets safety standards.