MISSOULA CO HIGH SCHOOL VO AG
PWS ID: MT0003505 · MISSOULA, Montana 59801
Population Served
105
Total Violations
201
Health-Based Violations
11
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 4
- County
- Missoula
- School/Daycare
- Yes
- MCL Violations
- 11
- Monitoring Violations
- 190
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 19 | 2008 |
| Coliform (TCR) | MCL | 11 | 2009 |
| Barium | MR | 3 | 2002 |
| Cadmium | MR | 3 | 2002 |
| Fluoride | MR | 3 | 2002 |
| Antimony, Total | MR | 3 | 2002 |
| Thallium, Total | MR | 3 | 2002 |
| Endrin | MR | 3 | 2002 |
| BHC-GAMMA | MR | 3 | 2002 |
| Dalapon | MR | 3 | 2002 |
| OXAMYL | MR | 3 | 2002 |
| Simazine | MR | 3 | 2002 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2002 |
| Picloram | MR | 3 | 2002 |
| Dinoseb | MR | 3 | 2002 |
| Aldicarb sulfone | MR | 3 | 2002 |
| Carbofuran | MR | 3 | 2002 |
| LASSO | MR | 3 | 2002 |
| Heptachlor epoxide | MR | 3 | 2002 |
| 2,4-D | MR | 3 | 2002 |
| HEXACHLOROBENZENE | MR | 3 | 2002 |
| Benzo(a)pyrene | MR | 3 | 2002 |
| Chlordane | MR | 3 | 2002 |
| 1,2,4-Trichlorobenzene | MR | 3 | 2002 |
| cis-1,2-Dichloroethylene | MR | 3 | 2002 |
| DICHLOROMETHANE | MR | 3 | 2002 |
| o-Dichlorobenzene | MR | 3 | 2002 |
| Vinyl chloride | MR | 3 | 2002 |
| trans-1,2-Dichloroethylene | MR | 3 | 2002 |
| 1,2-Dichloroethane | MR | 3 | 2002 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.