bacteria is everywhere in nature
bacteria is all over in/on the human body, contributing to some
essential functions.

from what water report did you read "high count of bacteria" ?

here? http://www.calwater.com/your_water/c...2007/index.php

if such levels reach a threshold they would stop pumping it as opposed
to giving thousands of people and children diarrhea... and having to
pay 10s of millions of dollars in health care and lawsuits.