Washington DC’s water utility has announced the launch of a new interactive map and other online content designed to help property owners identify the material that makes up their water service lines. The new map allows customers to enter an address to see the information that DC Water has in its records pertaining to service pipe material, in public space and on private property. The maps are in addition to information already on the utility’s website regarding lead in water, how to identify lead service lines, how to request free testing and what residents should do if they have lead service lines or other lead sources in their home’s plumbing. DC’s drinking water system dates back to the 1800s, and lead pipes were commonly installed prior to the mid-1950s and even as late as 1977.