What is a coliform test used for in water systems?

A coliform test is specifically designed to detect the presence of coliform bacteria in water supplies. Coliforms are a group of bacteria commonly found in the environment, particularly in soil, vegetation, and the feces of warm-blooded animals. Their presence in water is a strong indicator of potential contamination by pathogenic microorganisms that can be harmful to human health.

By performing a coliform test, water system operators can assess whether the water is safe for consumption and use. This test serves as an essential screening tool in water quality monitoring, helping to identify possible contamination sources and prompt necessary remedial actions to ensure public health safety.

Other tests, such as those for measuring water temperature, assessing mineral content, or evaluating color and turbidity, serve different purposes in water quality analysis but do not specifically indicate microbial contamination, which is crucial for ensuring the safety of drinking water.