There is currently no known lead blood level for children without some level of risk. Lead exposure in children may cause adverse health effects such as brain and neurological development, behavioral problems, reproductive complications, and impaired growth.
One source of lead exposure may be drinking water caused by plumbing pipes, fittings, fixtures, solder, flux, or other components made with or containing lead. Over the last few decades, actions have been taken to reduce or remove lead and lead exposure in plumbing components through the Safe Water Drinking Act and subsequent amendments.
The Missouri Department of Health and Senior Services website provides more resources and information regarding the effects of lead contamination and the Get the Lead Out of School Drinking Water Act.