Winchester, Illinois Water Quality Report
Water quality data for 6 water systems serving 6,540 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (23)
72
Jul 1, 2025
Violation
Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
Resolved Violations (154)
75
Mar 19, 2025
75
Mar 19, 2025
02
Oct 1, 2024 — Dec 31, 2024
02
Oct 1, 2024 — Dec 31, 2024
02
Oct 1, 2024 — Dec 31, 2024
+ 149 more resolved violations
Frequently Asked Questions
Is Winchester tap water safe to drink?
Winchester's water meets all EPA maximum contaminant levels. However, 0 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Winchester tap water?
0 contaminants have been detected in Winchester's water supply across 6 water systems. See the full contaminant table above for details.
How can I improve my water quality in Winchester?
Install a water filter rated for the specific contaminants found in Winchester's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Winchester have any water quality violations?
Yes, Winchester currently has 23 active violations. See the violations section above for details.