What Is The Microbial Limit For Drinking Water?

What Is The Microbial Limit For Drinking Water? Heterotrophic plate count levels in potable water should be <500 CFU/mL. These levels may increase on occasion, but counts consistently >500 CFU/mL would indicate a general decrease in water quality. What are the microbiological standard of drinking water? Although the method described is standard, there is no