What is the maximum acceptable level of contaminants in drinking water, measured in parts per million (ppm), and how does it affect the quality of 0 ppm water?

The maximum acceptable level of contaminants in drinking water is typically set at 0.01 parts per million (ppm). This means that water with 0 ppm of contaminants is considered to be of the highest quality, as it contains no harmful substances that could potentially impact human health.