Service-Line Inventory

Service LineThe Waterloo Water Works is developing an
inventory of service line materials, and we need your help. Older homes are more likely to have leaded plumbing materials or lead service lines, which increase your risk of lead exposure. 

An updated citywide inventory is required under the Environmental Protection Agency (EPA)'s recently revised Lead-Copper rule.

We Need Your Help!
Any citywide inventory can be a costly undertaking. Customer participation can reduce the expense of the inventory required by the EPA and reduce inconveniences associated with potential home or office visits.

To better manage resources and costs, WWW is asking for help from residents and business owners to identify private service line material. Postcards are being sent out to explain the process and also to help target which homes we still need help in updating.

Report Your Findings Here!

Learn how to Determine Your Service Line Material

Watch the video below, and read on to find out more.



Service line material is either galvanized steel, lead, or copper. These tests need to be conducted inside the home and that is where we need your help. One test is the scratch test. By scratching your service line, inside your house with a quarter, you will be able to determine the material. You can also perform the magnet test by attempting to stick a magnet to the line. 

How the EPA's Updated Lead-Copper Rule May Affect You

The EPA's updated Lead-Copper rule instructs the Waterloo Water Works (WWW) to fully update its service-line inventory so we can replace and improve a set amount of older lead pipe connections through a program that will span several years. As lead lines are discovered, they will need to be replaced.

The EPA is working to provide financial assistance to help property owners offset the cost of replacing their portion of the lead service line; however, according to information from the EPA, it will NOT be mandatory for homeowners to replace their portion of the line. WWW will notify homeowners of scheduled service line and adjacent water main work in their area. Our goal is to conduct complete service line replacements all at one time, as quickly as possible.

Learn more about the Lead-Copper Rule revision.
Lead Service Line Informational Video
From the American Water Works Association