Grinnell, Iowa Water Quality Report
Water quality data for 6 water systems serving 13,192 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 140.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 1400% | Above guideline |
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Compliance & Violations
Active Violations (70)
71
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
75
Jan 22, 2024
75
Jan 22, 2024
75
Jan 22, 2024
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Resolved Violations (430)
27
Aug 1, 2025 — Aug 31, 2025
3A
Aug 1, 2025 — Aug 31, 2025
3A
Aug 1, 2025 — Aug 31, 2025
3A
Aug 1, 2025 — Aug 31, 2025
3A
Aug 1, 2025 — Aug 31, 2025
+ 425 more resolved violations
Frequently Asked Questions
Is Grinnell tap water safe to drink?
Grinnell'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 Grinnell tap water?
1 contaminants have been detected in Grinnell's water supply across 6 water systems. See the full contaminant table above for details.
How can I improve my water quality in Grinnell?
Install a water filter rated for the specific contaminants found in Grinnell's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Grinnell have any water quality violations?
Yes, Grinnell currently has 97 active violations. See the violations section above for details.