The maximum contaminant level (MCL) set by the EPA of beryllium in drinking water is 0.0040mg/L. Convert the MCL of beryllium from milligrams per liter to parts per billion (ppb). converted MCL of beryllium: A farmer recently dug a new well for his property. He sends a 16.0mL sample of the well water to the EPA to be tested for the presence of beryllium. What is the maximum amount of Be (in g ) that can be present in this 16.0mL sample based on its MCL? maximum amount of Be