The following link provides some really great information about emerging contaminate regulation process from the EPA. After the exhausting process of getting a contaminate regulated it has to be determined what the MCL (Maximum contaminant level) . By definition the MCL is the Maximum allowed taking cost of removal into consideration. This is important because the cost for large water processors and municipal sources to remove all of the contaminate when only a very small portion of the water is actually used for drinking water would be a cost too great to pass on to its customers. We remove all of the contaminates because our bottled water is used only for drinking…it is the 1% water, it should be the best available for you and your family.
https://wcponline.com/2024/05/01/how-emerging-contaminants-are-regulated/