ROUND VALLEY WATER ASSN
PWS ID: ID7190042 · CHALLIS, Idaho 83226
Population Served
125
Total Violations
84
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 56
- County
- Custer
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 74
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 38 | 2014 |
| Lead and Copper Rule | MR | 20 | 2003 |
| Nitrate | MR | 9 | 2011 |
| Coliform (TCR) | MCL | 8 | 2013 |
| Revised Total Coliform Rule | MON | 4 | 2024 |
| Arsenic | MR | 2 | 2002 |
| Consumer Confidence Rule | Other | 2 | 1999 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 1996 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.