Cedar Rapids, Iowa Water Quality Report
Water quality data for 18 water systems serving 143,510 people.
Water Source
Detected Contaminants
No contaminant data available for this location.
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Compliance & Violations
Active Violations (52)
75
Sep 23, 2025
75
Aug 25, 2025
75
Aug 25, 2025
75
Aug 25, 2025
75
Jul 21, 2025
75
Jul 21, 2025
75
Jul 21, 2025
75
Jun 24, 2025
75
Jun 24, 2025
75
Jun 24, 2025
75
May 24, 2025
75
May 24, 2025
75
May 24, 2025
75
May 24, 2025
75
May 24, 2025
75
May 24, 2025
66
Dec 1, 2024
66
Dec 1, 2024
66
Dec 1, 2024
66
Dec 1, 2024
75
Jun 18, 2023
75
Jun 18, 2023
75
Jun 18, 2023
75
Oct 12, 2022
75
Oct 12, 2022
75
Oct 12, 2022
75
Oct 12, 2022
75
Oct 12, 2022
75
Oct 12, 2022
75
Oct 12, 2022
75
Oct 12, 2022
75
Oct 12, 2022
75
Jul 13, 2022
75
Jul 13, 2022
75
Jul 13, 2022
75
Jul 13, 2022
75
Jul 13, 2022
75
Jul 13, 2022
75
Jul 13, 2022
75
Jul 13, 2022
75
Jul 13, 2022
71
Jul 1, 2022
71
Jul 1, 2022
66
Dec 1, 2021
66
Feb 9, 2021
66
Dec 1, 2019
66
Dec 1, 2019
66
Dec 1, 2019
66
Dec 1, 2018
66
Dec 1, 2018
66
Dec 1, 2018
66
Dec 1, 2018
Resolved Violations (448)
03
Sep 1, 2025 — Sep 30, 2025
3A
Aug 1, 2025 — Aug 31, 2025
3A
Aug 1, 2025 — Aug 31, 2025
03
Aug 1, 2025 — Aug 31, 2025
03
Aug 1, 2025 — Aug 31, 2025
+ 443 more resolved violations
Frequently Asked Questions
Is Cedar Rapids tap water safe to drink?
Cedar Rapids'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 Cedar Rapids tap water?
0 contaminants have been detected in Cedar Rapids's water supply across 18 water systems. See the full contaminant table above for details.
How can I improve my water quality in Cedar Rapids?
Install a water filter rated for the specific contaminants found in Cedar Rapids's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Cedar Rapids have any water quality violations?
Yes, Cedar Rapids currently has 630 active violations. See the violations section above for details.