ARROWHEAD SCHOOL DISTRICT NO 75
PWS ID: MT0001567 · BELGRADE, Montana 59714
Population Served
120
Total Violations
834
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Park
- School/Daycare
- Yes
- MCL Violations
- 1
- Monitoring Violations
- 826
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Dalapon | MR | 30 | 2020 |
| Pentachlorophenol | MR | 30 | 2020 |
| Picloram | MR | 30 | 2020 |
| 2,4-D | MR | 30 | 2020 |
| Dinoseb | MR | 30 | 2020 |
| 2,4,5-TP | MR | 30 | 2020 |
| Endrin | MR | 27 | 2020 |
| BHC-GAMMA | MR | 27 | 2020 |
| Methoxychlor | MR | 27 | 2020 |
| Di(2-ethylhexyl) adipate | MR | 27 | 2020 |
| Di(2-ethylhexyl) phthalate | MR | 27 | 2020 |
| Hexachlorocyclopentadiene | MR | 27 | 2020 |
| Heptachlor | MR | 27 | 2020 |
| HEXACHLOROBENZENE | MR | 27 | 2020 |
| Benzo(a)pyrene | MR | 27 | 2020 |
| Chlordane | MR | 27 | 2020 |
| Carbofuran | MR | 27 | 2020 |
| Toxaphene | MR | 27 | 2020 |
| OXAMYL | MR | 27 | 2020 |
| Heptachlor epoxide | MR | 27 | 2020 |
| LASSO | MR | 27 | 2020 |
| Atrazine | MR | 27 | 2020 |
| Simazine | MR | 27 | 2020 |
| Coliform (TCR) | MR | 21 | 2014 |
| Lead and Copper Rule | MR | 13 | 2021 |
| Nitrate-Nitrite | MR | 13 | 2023 |
| Revised Total Coliform Rule | MON | 10 | 2024 |
| E. COLI | MR | 4 | 2018 |
| Diquat | MR | 4 | 2020 |
| Glyphosate | MR | 4 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.