Water Quality: Naperville, IL
1 water system • 156,406 people served
No Health ViolationsWater Quality Summary
Naperville is served by 1 public water system with a combined service population of 156,406 people, and has 5 EPA Safe Drinking Water Act violations on record. None of those violations are health-based — the records reflect missed monitoring or reporting deadlines rather than a contaminant exceeding safe levels. Naperville's violation count is 83% below the national average for Illinois.
Water Systems Serving Naperville
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| NAPERVILLE | IL0434670 | Surface Water | 156,406 | 5 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Illinois
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.