Potable water is defined as :-

- Drinking water, also known as potable water, is water that is safe to drink or to use for food preparation. - 'Potable water' is defined as: zero coliforms in any amount of drinking water. - Bacteriological indicators of water quality in India: Coliforms -Overall best indicator. Fecal streptococci - Indicate recent contamination of drinking water. Clostridium perfirenges - Indicate remote contamination of drinking water.