What is the maximum acceptable concentration of total coliform bacteria in drinking water?

The maximum acceptable concentration of total coliform bacteria in drinking water is zero per 100 ml. This standard is based on the fact that the presence of coliform bacteria indicates potential contamination by pathogenic microorganisms, which could pose serious health risks to consumers. Total coliforms are a group of bacteria found in the environment, and while some may be harmless, their presence in drinking water indicates that the water may have been contaminated with fecal matter or other substances that can lead to disease.

Water quality guidelines set by health organizations prioritize public health by ensuring that drinking water is free from pathogens. Therefore, a concentration of zero total coliforms per 100 ml is established as the regulatory standard for safe drinking water. This standard helps to ensure that the water supply is safe for consumption and free from any harmful microbial contaminants.