Water Quality Results and Reports

The Chicago Department of Water Management is constantly monitoring and testing the quality of Chicago’s drinking water. The safety and quality of Chicago’s tap water is our top priority.


Consumer Confidence Reports

This is our annual Consumer Confidence Report providing the public with a compressive overview of the Chicago Water System and an annual average water quality data. The collection of data for the preceding year begins in January, it is analyzed and compiled, and is usually available by the spring.


Drinking Water Watch

We have assembled on this page the most frequently-asked-for reports. For a more extensive list of test results and reports please inquire with the Illinois Environmental Protection Agency (IEPA).


Comprehensive Chemical Analysis

This chemical analysis report is compiled four times annually. 


City of Chicago Emerging Contaminant Study

This summary report covers the Department of Water Management’s sampling for Endocrine Disrupting Chemicals, Pharmaceuticals, and Personal Care Products.


Monitoring for Chromium-6

The Chicago Department of Water Management monitors for chromium-6 and reports on it quarterly.

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