Results of bacti test are expressed as what?

The results of a bacteriological test, particularly for coliform bacteria in wastewater or drinking water, are typically expressed as "coliforms per 100 mL." This standard measurement reflects the concentration of coliform bacteria, which is crucial for assessing water quality and safety. Reporting results in this manner allows for easier comparison to regulatory limits and guidelines, as many water quality standards specify allowable limits in terms of coliforms per volume of water tested.

Using "coliforms per 100 mL" is particularly relevant in the context of public health, as regulatory agencies often evaluate the safety of water supplies based on these concentrations. This method provides a clear way to communicate the level of contamination in a specific volume of water, which is essential for determining compliance with health standards and taking necessary actions to protect public health.