NILES Water Quality Report
Population
29,350
people served
Water Source
🌊 Surface
rivers, lakes, reservoirs
National Rank
Top 54%
of 49,184 US systems
5-Year Record
⚠️ 1
violation recorded
B
Good
Safety Grade
1 violation in the past 5 years
System Details
- PWSID
- IL0312010
- Population Served
- 29,350
- Water Source
- Surface Water
- Owner
- Local Government
- State
- Illinois
- EPA Region
- 5
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 3 |
Violation History
2025
1
2015
2
Total violations on record: 3
Service Area
Cities Served
ZIP Codes Served
How does this compare?
This systemNational average
Grade B
Avg: B-C
3violations total
11% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 4× the national average.