Water Quality in Chicago, IL (60428)
EPA violation data for public water systems serving ZIP code 60428.
No Health-Based Violations
None of the 3 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are18 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 77% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
10,927
Population
3
Water Systems
18
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (3)
Chicago
Markham
Mid-Mark Water Commission
Contaminants Found
Annual water quality report delivery requirement.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jul 2025
How Does This Compare?
Chicago (60428) has more violations than 77% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 18, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.