ST LABRE INDIAN SCHOOL
PWS ID: MT0000018 · ASHLAND, Montana 59003
Population Served
650
Total Violations
1,488
Health-Based Violations
201
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 98
- County
- Rosebud
- School/Daycare
- Yes
- MCL Violations
- 149
- Monitoring Violations
- 1,243
- Treatment Tech Violations
- 52
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 142 | 2025 |
| Groundwater Rule | TT | 52 | 2019 |
| Consumer Confidence Rule | Other | 43 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 26 | 2025 |
| TTHM | MR | 26 | 2025 |
| Di(2-ethylhexyl) phthalate | MR | 24 | 2020 |
| Di(2-ethylhexyl) adipate | MR | 23 | 2020 |
| Benzo(a)pyrene | MR | 23 | 2020 |
| Simazine | MR | 23 | 2020 |
| OXAMYL | MR | 23 | 2020 |
| Dinoseb | MR | 23 | 2020 |
| Dalapon | MR | 23 | 2020 |
| Heptachlor epoxide | MR | 23 | 2020 |
| Heptachlor | MR | 23 | 2020 |
| Toxaphene | MR | 23 | 2020 |
| BHC-GAMMA | MR | 23 | 2020 |
| cis-1,2-Dichloroethylene | MR | 23 | 2020 |
| Vinyl chloride | MR | 23 | 2020 |
| 1,1-Dichloroethylene | MR | 23 | 2020 |
| 1,1,1-Trichloroethane | MR | 23 | 2020 |
| Carbon tetrachloride | MR | 23 | 2020 |
| 1,1,2-Trichloroethane | MR | 23 | 2020 |
| Tetrachloroethylene | MR | 23 | 2020 |
| Toluene | MR | 23 | 2020 |
| Endrin | MR | 23 | 2020 |
| Methoxychlor | MR | 23 | 2020 |
| Atrazine | MR | 23 | 2020 |
| LASSO | MR | 23 | 2020 |
| 2,4-D | MR | 23 | 2020 |
| Chlordane | MR | 23 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.