Why is lead in drinking water a problem?
Drinking water is not our only source of lead exposure. However, combined with other sources, lead in water can increase the build-up of lead in our bodies. Lead in water can be a special problem for infants, whose diets may be mostly liquids, such as baby formulas or concentrated juices mixed with water. Smaller bodies can absorb lead more rapidly than bigger ones, so amounts of lead that won’t hurt an adult can be very harmful to a child. A child’s mental and physical growth can be permanently harmed by too much lead.