💧 ZIP Water Report

Tap water in Chicago, IL — ZIP 60621

1 public water system serving about 2,721,308 people.

B
Good

Water systems serving 60621

Chicago
PWSID IL0316000 · serves 2,721,308 · surface water
0 health-based / 9 total violations (5 yrs)
B

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology