Madison’s drinking water source does not contain significant amounts of lead. The corrosive nature of water, however, can dissolve or corrode lead through its contact with water service lines, interior pipes, and plumbing fixtures. Lead in drinking water can cause a variety of adverse health effects, especially for infants and children.
We have completed a successful 11-year program to ensure all lead water service lines in the city are replaced. Except for a small number of owner-side lead services, all known lead service lines in the City of Madison have been removed from service. Following the conclusion of the lead service line replacement program, required monitoring conducted in 2011 demonstrated lower lead levels at the customer tap.
Our lead service replacement program's success has served as a national model for other utilities seeking alternatives to chemical treatment to meet federal standards for lead in drinking water.