Consumer Confidence Reports

Get the 2019 Water Quality Report

Dear Resident:

Now, more than ever, it is vitally important that all Chicago residents have access to high-quality water. Frequent hand-washing is among the most effective ways individuals can protect themselves and their families from COVID-19.

As this report outlines, Chicago’s tap water meets or exceeds all standards set by the U.S. Environmental Protection Agency for safe, clean drinking water. This report, issued annually, details information on only the results above detection limits for annual certified testing of Chicago’s drinking water. Included is a glossary of terms so that you understand exactly what the findings mean.

The City of Chicago Department of Water Management (DWM) continues to deliver almost one billion gallons daily of clean drinking water to residents of Chicago and the surrounding suburbs. In order to minimize any contaminants- including lead- in our water, DWM keeps our water clean by:

  • Performing over 600,000 analyses per year of tap water at every step in the treatment process and adjusting treatment protocols as necessary;
  • Using corrosion control in our water to minimize the risk of contaminants leaching from plumbing;
  • Replacing miles of water and sewer mains to increase reliability and efficiency;
  • Distributing complete instructions for flushing water through plumbing to residents and businesses whenever there is any water infrastructure work being done in the vicinity; and
  • Offering free residential water testing by a certified laboratory.

I will continue to make it a priority of my administration to protect our exceptional water source, Lake Michigan, from polluters and invasive species and to create a strong, efficient water system that provides safe, clean drinking water for every Chicago resident.


Mayor Lori E. Lightfoot


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