What causes other coliform in water?
Other coliform consists of bacteria that is not fecal coliform (E.coli). Some of these bacteria can be found in soil, surface water, and on your skin. They are typically harmless to humans when consumed in small quantities.
How is it measured?
Other Coliform is measured in a lab and it takes 24 hours to get your results. The lab give you special containers and teach you how to make sure your sample isn't contiminated.