NORTH HAVRE COUNTY WATER DIST
PWS ID: MT0002988 · HAVRE, Montana 59501
Population Served
90
Total Violations
886
Health-Based Violations
684
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 45
- County
- Hill
- School/Daycare
- No
- MCL Violations
- 139
- Monitoring Violations
- 190
- Treatment Tech Violations
- 545
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | TT | 545 | 2010 |
| Total Haloacetic Acids (HAA5) | MCL | 70 | 2010 |
| TTHM | MCL | 69 | 2011 |
| Surface Water Treatment Rule | MR | 46 | 2024 |
| Interim Enhanced Surface Water Treatment Rule | MR | 24 | 2007 |
| TTHM | MR | 21 | 2006 |
| Total Haloacetic Acids (HAA5) | MR | 15 | 2006 |
| Consumer Confidence Rule | Other | 8 | 2012 |
| Lead and Copper Rule | MR | 5 | 2013 |
| Asbestos | MR | 5 | 2011 |
| Coliform (TCR) | MR | 3 | 2000 |
| 1,2,4-Trichlorobenzene | MR | 3 | 2005 |
| Xylenes, Total | MR | 3 | 2005 |
| DICHLOROMETHANE | MR | 3 | 2005 |
| o-Dichlorobenzene | MR | 3 | 2005 |
| p-Dichlorobenzene | MR | 3 | 2005 |
| 1,2-Dichloroethane | MR | 3 | 2005 |
| Trichloroethylene | MR | 3 | 2005 |
| 1,1,2-Trichloroethane | MR | 3 | 2005 |
| Tetrachloroethylene | MR | 3 | 2005 |
| CHLOROBENZENE | MR | 3 | 2005 |
| Toluene | MR | 3 | 2005 |
| Styrene | MR | 3 | 2005 |
| Public Notice | Other | 3 | 2008 |
| Revised Total Coliform Rule | MON | 3 | 2018 |
| 1,1,1-Trichloroethane | MR | 3 | 2005 |
| trans-1,2-Dichloroethylene | MR | 3 | 2005 |
| Carbon tetrachloride | MR | 3 | 2005 |
| cis-1,2-Dichloroethylene | MR | 3 | 2005 |
| 1,1-Dichloroethylene | MR | 3 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.