Featured Services and Programs

Service Line Inventory
Do you wonder if you have a lead service line? Check out DWM’s new citywide Service Line Inventory

Water Quality Reports and Results
Potable Water Quality Reports.

Sewer Regulations
Sewer detention regulations.

Pay Water Sewer Bills Online
Connect and pay you city utility bills on-line

Conservation Tips
Useful tips and suggestions about how to manage storm water around your home.

Education
Items for students and teachers

Chicago Water Quality
The easiest way to promote water quality at home is to flush your water system every day

Lead Service Line Replacement
Learn more about Chicago's Lead Service Line Replacement Programs

Suburban Customers & Regional Partnerships
Information on Chicago's suburban water customers and regional partnership initiatives.
Do you wonder if you have a lead service line? Check out DWM’s new citywide Service Line Inventory
On the Service Line Inventory, you will see what our records show both the private and public side of service lines citywide to be made of. If you see that part of your line is labeled “Suspected Lead”, this determination is made based on the age and size of your building because there has not yet been field verification of its content.
You should know:
- The Department of Water Management (DWM) has made all reasonable efforts to ensure that the information on this website is accurate according to the information available to us, but accuracy is not in any way guaranteed.
- Having a lead service line does not automatically mean you have elevated levels of lead in the water. DWM adds corrosion control to the water to help prevent lead from leaching into the water. Each house has different test results based on factors such as water usage (which refreshes the corrosion control coating in your pipes), interior plumbing, and previous periods of vacancy. To check the levels of lead in your water, call 311 for free water testing.
- In Chicago, lead paint is by far the biggest source of lead poisoning in children. It is a good idea to check your house for lead paint while also checking to see if you have a lead service line.
- All young children should have their blood lead levels tested by their pediatrician - see more info here.
Avoid water in your basement
As our climate changes, we are seeing more intense storms than we have in past years. Our sewer system can get overwhelmed by these huge downpours and more of us are finding water in our basements. In Chicago, the sewer system also handles rainwater removal. The Chicago Department of Water Management is working closely with the Metropolitan Water Reclamation District to increase the capacity of our drainage systems.
There are some steps homeowners can take to help prevent water from backing up into their basements:
- Disconnect downspout connections from the sewer system.
- Make sure to direct downspout flow to areas with permeable surfaces that can properly absorb the stormwater or use rain barrels to collect the water directly from the downspouts.
- Avoid running a dishwasher or washing machine during storms.
- Clear the area around downspouts to allow water to flow freely away from your foundation.
- Clear drains and sewers of debris and snow to allow drainage for melting.
- Do not dump fats/oils/greases in private drains or public catch basins.
- For better resistance to flooding in the future, it can be helpful to install rain gardens, green landscaping, or stormwater trees in your yard to help retain rainwater.
Flushing Your Water System
Now that your old water main has been replaced and your water service has been connected to the new water main, it is important to flush your plumbing of any sediment, rust or metals, including any lead to maintain water quality.
Consumer Lead Testing Results and Requests
Construction Projects
Neighborhood construction projects involving water and sewer main replacements.
Department Main Office
Water Management
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Phone: 312.744.4420
Toll Free:
Fax: 312.744.7119 -
1000 East Ohio Street
Chicago, IL 60611
Get Directions - Leadership
Andrea R.H. Cheng, Ph.D., P.E.
Commissioner of Water Management