OSWEGO Water Quality Report
Population
38,169
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
Top 90%
of 49,184 US systems
5-Year Record
⚠️ 6
violations recorded
C
Fair
Safety Grade
6 violations in the past 5 years, including 1 health-based
System Details
- PWSID
- IL0930150
- Population Served
- 38,169
- Water Source
- Ground Water
- Owner
- Local Government
- State
- Illinois
- EPA Region
- 5
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 7000 | ⚠ Monitoring/Reporting | 4 |
| Radium-226 | ✕ Health-Based | 2 |
| Contaminant 7500 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 0999 | ⚠ Monitoring/Reporting | 4 |
Violation History
2024
4
2022
2
2017
3
2016
1
1999
1
Total violations on record: 11
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Reverse Osmosis System
Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates
Removes: Radium-226
How does this compare?
This systemNational average
Grade C
Avg: B-C
11violations total
39% of national average
National avg: ~28 per system
📍 Mid-to-large system — serves 6× the national average.