How do I know what my portion of the service line is made of?

Homes built after 1950 are more likely to have copper service lines.

You can often identify the material used in your service line through a visual inspection at the point where the water service line enters your home. Reference this photo (PNG) to find the location.

  • Find the section of plumbing that enters your home near the foundation, there is usually a valve at that location. Be careful not to confuse it with the sewer or gas line.

You can scrape a small section with a coin if it is dirty or discolored. Reference this photo (PNG) for pictures of pipe material types.

  • If the scraped area is shiny and silver, your service line is lead. A magnet will not stick to a lead pipe.
  • If the scraped area is copper in color, like a penny, your service line is copper.
  • If the scraped area remains a dull gray, and a magnet sticks to the surface, your service line is galvanized steel.
  • The plumbing material may be PEX / plastic. In this case, it would appear to be plastic, not metal.

Need help or still not sure? Take a picture of the service line and email it along with the service address and a City team member will get back to you.

Show All Answers

1. How do I know what my portion of the service line is made of?
2. What if I don’t want to replace my line (or my landlord doesn’t want to replace it)?
3. I can’t afford to replace all my plumbing materials, what should I do?
4. What if my internal premise plumbing is galvanized too?
5. I have a lead or galvanized line, should I be worried for my family’s health?
6. Are there lead pipes in the system-owned portion of the water system?
7. What are other ways I can reduce my family’s exposure to lead?
8. What are other ways I can reduce my family’s exposure to lead?