What Is An Acceptable Level Of Chlorine In Drinking Water?

What Is An Acceptable Level Of Chlorine In Drinking Water? Chlorine levels up to 4 milligrams per liter (mg/L or 4 parts per million (ppm)) are considered safe in drinking water . What happens if chlorine levels are too high in drinking water? In water, the chlorine reacts to form hypochlorous acid and hypochlorites, and