HIDDEN LAKE COLONY
PWS ID: MT0003932 · CUT BANK, Montana 59427
Population Served
80
Total Violations
236
Health-Based Violations
62
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 7
- County
- Glacier
- School/Daycare
- No
- MCL Violations
- 62
- Monitoring Violations
- 169
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 52 | 2017 |
| Groundwater Rule | MR | 24 | 2016 |
| Revised Total Coliform Rule | MON | 22 | 2024 |
| Coliform (TCR) | MR | 17 | 2013 |
| Arsenic | MR | 15 | 2023 |
| Antimony, Total | MR | 9 | 2023 |
| Coliform (TCR) | MCL | 6 | 2006 |
| Consumer Confidence Rule | Other | 5 | 2025 |
| Nitrate-Nitrite | MR | 4 | 2020 |
| Nitrate-Nitrite | MCL | 4 | 2017 |
| Combined Radium (-226 and -228) | MR | 3 | 2019 |
| Endrin | MR | 3 | 2019 |
| Methoxychlor | MR | 3 | 2019 |
| Toxaphene | MR | 3 | 2019 |
| Dalapon | MR | 3 | 2019 |
| OXAMYL | MR | 3 | 2019 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2019 |
| Picloram | MR | 3 | 2019 |
| Dinoseb | MR | 3 | 2019 |
| Hexachlorocyclopentadiene | MR | 3 | 2019 |
| Atrazine | MR | 3 | 2019 |
| Heptachlor | MR | 3 | 2019 |
| Heptachlor epoxide | MR | 3 | 2019 |
| 2,4-D | MR | 3 | 2019 |
| HEXACHLOROBENZENE | MR | 3 | 2019 |
| Benzo(a)pyrene | MR | 3 | 2019 |
| Pentachlorophenol | MR | 3 | 2019 |
| Chlordane | MR | 3 | 2019 |
| E. COLI | MR | 3 | 2022 |
| BHC-GAMMA | MR | 3 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.