ASHTON CITY OF
PWS ID: ID7220004 · ASHTON, Idaho 83420
Population Served
1,129
Total Violations
188
Health-Based Violations
133
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 516
- County
- Fremont
- School/Daycare
- No
- MCL Violations
- 133
- Monitoring Violations
- 41
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MCL | 127 | 2012 |
| Chlorine | MR | 11 | 2025 |
| Public Notice | Other | 8 | 2013 |
| Revised Total Coliform Rule | MON | 8 | 2020 |
| TTHM | MR | 6 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 6 | 2024 |
| Coliform (TCR) | MCL | 6 | 2001 |
| Coliform (TCR) | MR | 4 | 2002 |
| 2,4,5-TP | MR | 1 | 1996 |
| Nitrate | MR | 1 | 1996 |
| Dinoseb | MR | 1 | 1996 |
| 2,4-D | MR | 1 | 1996 |
| Picloram | MR | 1 | 1996 |
| Dalapon | MR | 1 | 1996 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.