How to Identify Your Private
Water Service Line Material
The GCWW Lead Look-up Map is based on the best-available data GCWW has at this time. GCWW continually updates its service line data based on current information and records it receives.
You can help us improve the data by following the steps below:
Step One:
Locate the water service line coming into the house/building–this is typically found in the basement.
Step Two:
Find where the pipe comes through the wall into the building. Use the flat edge of a screwdriver, other tool, or coin to scratch the outside of the pipe near the wall (labeled “Test Area” in picture below). If the pipe is wrapped or insulated, uncover first before scratching. Wear a glove while conducting the test or wash your hands thoroughly afterward.
Step Three:
Compare scratched area with pictures below. It is also helpful to use a fridge magnet to see if the pipe is magnetic.
Lead Pipe: If the scratched area is shiny and silver, your service line is lead. A magnet will not stick to a lead pipe.
Copper Pipe: If the scratched area is copper in color like a penny, your service line is copper. A magnet will not stick to a copper pipe
Galvanized Steel Pipe: If the scratched area remains a dull gray, your service line is galvanized steel. A magnet will stick to this pipe.
Step Four:
Take a picture of the entire meter setting and a picture of the scratched area. Make sure it is well lit and clear. Upload photos into self-ID form here or email photo to lead@gcww.cincinnati-oh.gov along with your property address.
Entire Meter Setting
Zoom in on scratch test area