Grinnell Water Department
PWSID IA7930008 · Grinnell, Iowa · serves 9,564 people · groundwater source
F
Failing
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2026-04-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2026-01-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2025-10-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2025-07-01 | Gross Alpha, Excl. Radon and U | MR | No | Resolved |
| 2025-07-01 | Combined Radium (-226 and -228) | MR | No | Resolved |
| 2025-04-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2025-01-01 | Gross Alpha, Excl. Radon and U | MCL | Yes | Archived |
| 2025-01-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2024-12-17 | Public Notice | Other | No | Resolved |
| 2024-10-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2024-10-01 | Gross Alpha, Excl. Radon and U | MCL | Yes | Archived |
| 2024-07-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2024-07-01 | Gross Alpha, Excl. Radon and U | MCL | Yes | Archived |
| 2024-04-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2024-04-01 | Gross Alpha, Excl. Radon and U | MCL | Yes | Archived |
| 2024-01-01 | Combined Radium (-226 and -228) | MCL | Yes | Archived |
| 2024-01-01 | Gross Alpha, Excl. Radon and U | MCL | Yes | Archived |
| 2023-07-01 | Combined Radium (-226 and -228) | MR | No | Resolved |
| 2023-07-01 | Gross Alpha, Excl. Radon and U | MR | No | Resolved |