WESTERN HILLS (MOBILE) ESTATES
PWS ID: IA5208600 · GRINNELL, Iowa 50112
Population Served
760
Total Violations
177
Health-Based Violations
48
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 285
- County
- Johnson
- School/Daycare
- No
- MCL Violations
- 48
- Monitoring Violations
- 76
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 48 | 2001 |
| Coliform (TCR) | MR | 16 | 1996 |
| Nitrate | MR | 7 | 1995 |
| TTHM | MR | 6 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 6 | 2025 |
| Revised Total Coliform Rule | MON | 6 | 2025 |
| Antimony, Total | MR | 4 | 1993 |
| Nitrite | MR | 4 | 1995 |
| 1,2,4-Trichlorobenzene | MR | 4 | 1996 |
| BHC-GAMMA | MR | 4 | 1996 |
| Selenium | MR | 3 | 1985 |
| Barium | MR | 3 | 1985 |
| Mercury | MR | 3 | 1985 |
| Fluoride | MR | 3 | 1985 |
| Chromium | MR | 3 | 1985 |
| Cadmium | MR | 2 | 1985 |
| Arsenic | MR | 2 | 1985 |
| Consumer Confidence Rule | Other | 1 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.