Tap water in St. John, IN — ZIP 46303
2 public water systems serving about 30,300 people.
C
Fair
Water systems serving 46303
St. John Municipal Water Utility
PWSID IN5245043 · serves 25,700 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Cedar Lake Water Works
PWSID IN5245047 · serves 4,600 ·
groundwater
1 health-based / 53 total violations (5 yrs)
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology