Rock Island, Illinois Water Quality Report
Water quality data for 2 water systems serving 46,818 people.
Water Source
Detected Contaminants
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (22)
72
Jul 1, 2025
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Resolved Violations (169)
27
Apr 1, 2025 — Jun 30, 2025
27
Apr 1, 2025 — Jun 30, 2025
27
Apr 1, 2025 — Jun 30, 2025
03
Apr 1, 2025 — Jun 30, 2025
27
Apr 1, 2025 — Jun 30, 2025
+ 164 more resolved violations
Frequently Asked Questions
Is Rock Island tap water safe to drink?
Rock Island's water has 1 contaminant detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Rock Island tap water?
2 contaminants have been detected in Rock Island's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Rock Island?
Install a water filter rated for the specific contaminants found in Rock Island's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Rock Island have any water quality violations?
Yes, Rock Island currently has 22 active violations. See the violations section above for details.