What kind of testing is done to check for bacteria in the water supply?

Coliform bacteria testing is the correct method for checking for the presence of bacteria in the water supply. This type of testing specifically targets coliform bacteria as indicators of potential contamination and the overall microbial quality of drinking water. The presence of these bacteria can suggest that water has been contaminated with fecal material, which poses a significant health risk to consumers.

To perform coliform bacteria testing, water samples are collected and then examined using various culture techniques to indicate the presence of coliform organisms. The results can inform water quality management and public health decisions regarding the safety of the water supply.

While chlorine testing evaluates the level of chlorine residual in the water, which is essential for disinfection, it does not directly measure bacterial presence. Turbidity testing measures the clarity of the water, often impacted by particles, but does not assess microbial content. pH level testing determines the acidity or alkalinity of the water, which can influence the solubility of contaminants but does not indicate bacterial presence. Overall, coliform bacteria testing is a crucial method for ensuring the safety and potability of water supplies.