OL - 109.1 - Basic Microbiology Total Coliform Rule
(Basic Micro Total Coliform Rule)
Total Coliform Rule
Drinking water regulations require that potable waters for human consumption be free from human-disease-causing bacteria and specific indicator bacteria that are indicative of the presence of these pathogens. This does not mean that drinking water should be sterile. Keep in mind that very few species of bacteria are harmful to humans.