CASTLEFORD CITY OF
PWS ID: ID5420010 · CASTLEFORD, Idaho 83321
Population Served
275
Total Violations
47
Health-Based Violations
20
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 112
- County
- Twin Falls
- School/Daycare
- No
- MCL Violations
- 20
- Monitoring Violations
- 26
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 15 | 2009 |
| Chlorine | MR | 10 | 2019 |
| Coliform (TCR) | MCL | 5 | 2006 |
| Nitrate | MR | 4 | 2009 |
| Coliform (TCR) | MR | 4 | 2008 |
| Revised Total Coliform Rule | MON | 3 | 2019 |
| Arsenic | MR | 2 | 2008 |
| Lead and Copper Rule | MR | 2 | 2022 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 2008 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.