The use of "coliform" and "E.coli" when discussing potable water is interchangeable.

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While E.coli is a type of coliform bacteria, not all coliform bacteria are E.coli. Coliform bacteria are a group of bacteria that are commonly used as an indicator of contamination in water. E.coli is a specific type of coliform bacteria that is fecal in origin and indicates the presence of the bacteria in the water. Therefore, while the presence of coliform bacteria in potable water indicates contamination, the presence of E.coli specifically indicates contamination with fecal matter and is a more serious health risk.

The Use of "Coliform" and "E