An estimated 9.2 million lead service lines serve water to properties in communities throughout the nation, according to the EPA.

Lead in drinking water remains a serious issue across the United States, and while some states have relatively few reported lead service lines, others have hundreds of thousands of lead service lines for water.

After decades of pressure to replace lead pipes with a less toxic material, the EPA has set a deadline in the next 10 years for states and water utility companies to do so. The U.S. has more than nine million lead pipes that carry drinking water,