NCMRWA NORTH HAVRE CWD LEG
PWS ID: MT0004720 · HELENA, Montana 59624
Population Served
90
Total Violations
17
Health-Based Violations
0
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 6
- County
- Hill
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 17
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MR | 6 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 6 | 2024 |
| Surface Water Treatment Rule | MR | 3 | 2024 |
| Lead and Copper Rule | MR | 2 | 2015 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.