Know Your Water
There are approximately 400,000 lead service lines in Chicago. We have compiled this inventory using information collected while performing infrastructure maintenance and estimates based on property descriptions. You can also check whether your line is lead and send us your results. The location displayed on the map is an approximation. The service address of a building may not match the location of the building.
If you want to lookup the service line material of a specific address that is not being shown in the service line inventory, please use the Contact Us form.
Chicago’s drinking water meets all national, state and industry standards for safety because the Chicago Department of Water Management adds corrosion control, which coats the pipes to help prevent lead from dissolving into our water. If you have any concerns about your water quality, have it tested for free.
Whenever you have not used for 6 hours or more, run your water for at least 5 minutes before using it for cooking and drinking. This moves out water that has been sitting in your pipes and pulls through the corrosion control that the city adds to prevent lead and other contaminants from leaching into water. Everyday activities like taking a shower, doing laundry, washing dishes, and watering the lawn all count towards flushing the water. Lead is not absorbed through the skin, so these activities are not a concern. If there has been work done on the water mains outside your home or it has been vacant for a while, you may need to conduct more extensive flushing.
|Service Line Material Result||What it Means?|
|NOT LEAD||The building does not have a lead service line.|
|LEAD||The building has a confirmed lead service line.|
|GALVANIZED REQUIRING REPLACEMENT||The building has a confirmed galvanized iron service line which will require replacement.|
|SUSPECTED LEAD||We currently do not have a record of your service, though we suspect the service line to be lead. Help DWM identify your service line.|
|Category||What it Means?|
|Field Verification||Visual Inspection by a DWM affiliated personnel|
|Construction Records||Based on construction records such as drawing, metercards, etc.|
|Historical Data||Based on historical records such as Tap installation card, etc.|
|Building Age||Assumption based on when the building was constructed|
|Please Pick an Address|
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Contact us at 312-742-2406, email@example.com, or use the form below.
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