Oswego, Illinois Water Quality Report
Water quality data for 1 water system serving 38,169 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 114.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 1140% | Above guideline |
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Compliance & Violations
Active Violations (27)
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Resolved Violations (258)
27
Sep 1, 2024 — Sep 30, 2024
27
Sep 1, 2024 — Sep 30, 2024
27
Sep 1, 2024 — Sep 30, 2024
27
Sep 1, 2024 — Sep 30, 2024
72
Jul 1, 2022
+ 253 more resolved violations
Frequently Asked Questions
Is Oswego tap water safe to drink?
Oswego's water meets all EPA maximum contaminant levels. However, 1 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Oswego tap water?
1 contaminants have been detected in Oswego's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Oswego?
Install a water filter rated for the specific contaminants found in Oswego's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Oswego have any water quality violations?
Yes, Oswego currently has 27 active violations. See the violations section above for details.