GRINNELL WATER DEPARTMENT Water Quality Report
Population
9,564
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
—
of 49,184 US systems
5-Year Record
⚠️ 42
violations recorded
F
Unsafe
Safety Grade
42 violations in the past 5 years, including 33 health-based
System Details
- PWSID
- IA7930008
- Population Served
- 9,564
- Water Source
- Ground Water
- Owner
- Local Government
- State
- Iowa
- EPA Region
- 7
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Radium-226 | ✕ Health-Based | 23 |
| Contaminant 7500 | ⚠ Monitoring/Reporting | 1 |
| Gross Alpha | ✕ Health-Based | 18 |
Violation History
2025
7
2024
27
2023
8
Total violations on record: 42
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Reverse Osmosis System
Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates
Removes: Radium-226
How does this compare?
This systemNational average
Grade F
Avg: B-C
42violations total
150% of national average
National avg: ~28 per system
📍 Average-sized water system.