after performing a water quality test by filtering 500ml of the river water you

Question

after performing a water quality test by filtering 500ml of the river water you observe 18 cream colored colonies and 15 gold / green metallic colonies. is this water potable ? why or why not? after performing a water quality test by filtering 500ml of the river water you observe 18 cream colored colonies and 15 gold / green metallic colonies. is this water potable ? why or why not? after performing a water quality test by filtering 500ml of the river water you observe 18 cream colored colonies and 15 gold / green metallic colonies. is this water potable ? why or why not?

Explanation / Answer

The water is not potable. Presence of gold/green colored colonies is an indicative of presence of coliform bacteria, which indicates potential health risk from pathogenic bacterial species.

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