Residents can check if service line is lead at dcwater.com/servicemap Lead service lines were predominately installed prior to the mid-1950s in the District o

Residents can check if service line is lead at dcwater.com/servicemap Lead service lines were predominately installed prior to the mid-1950s in the District of Columbia, but there are records of lead service lines being installed as late as 1977. You can use our service line map to see the information DC Water has about your service line at dcwater.com/servicemap