The most common way that lead enters drinking water is through the corrosion of lead or galvanized iron plumbing. Across the country, lead and galvanized iron was a common material used for plumbing in many older homes. In a large percentage of these older homes, lead plumbing can be found in the service line, either in the utility portion of the service line from the main to the curb-stop or in the customer portion of the service line from the curb stop to the interior piping. However, lead can also be found beyond the service line in the interior house piping, lead solder, and brass or chrome-plated brass faucets. Though galvanized steel and copper became more popular as plumbing pipe materials in the 1960s, lead piping and solder was not federally banned until 1986 and faucets could contain up to 8% lead until 1996.