Chicago draws clean water from Lake Michigan, but the city has an estimated 400,000 lead service lines connecting mains to homes – the most of any U.S. city. Lead is the primary concern, with PFAS and disinfection byproducts adding to the risk. A filter certified for lead removal (NSF 53) is the minimum. A reverse osmosis system covers everything.
Is Chicago tap water safe to drink? Chicago's water meets EPA standards at the treatment plant. The concern is what it picks up after treatment – specifically lead from the city's 400,000+ lead service lines. About 80% of Chicago homes are connected via lead pipes. If your home was built before 1986, using a certified lead filter adds an important layer of protection.
Does Chicago water have lead in it? Chicago mandated lead service lines for all new construction from 1886 to 1986, creating over 400,000 lead connections – more than any U.S. city. Lead enters the water as it passes through these pipes. A 2022 study in AWWA Water Science found average first-draw lead levels of 3.8 ppb in Chicago homes, with some exceeding the EPA action level of 15 ppb.
What is the best water filter for lead in Chicago? For lead removal specifically, any filter certified to NSF 53 standard works. The ZeroWater pitcher is the best portable option – it removes lead and includes a meter to verify performance. For permanent installation, the Aquasana AQ-5300+ under-sink system or AquaTru countertop RO provide stronger lead protection plus PFAS removal.
Does Chicago water have PFAS? Yes. EPA UCMR5 testing detected multiple PFAS compounds in Chicago's Lake Michigan water supply. While individual compound levels were mostly below the EPA's 4 ppt maximum contaminant level, multiple PFAS are present simultaneously. Check your specific zip code's results.
Should I get my Chicago water tested for lead? Yes, especially if your home was built before 1986. The City of Chicago offers a free lead testing program – you can request a test kit through the Department of Water Management website. Results take several weeks. In the meantime, using a certified lead filter and flushing your tap for 30 seconds each morning are smart precautions.