INDIAN SPRINGS RANCH SUB
PWS ID: MT0004611 · EUREKA, Montana 59917
Population Served
455
Total Violations
45
Health-Based Violations
15
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 204
- County
- Lincoln
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 30
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 15 | 2013 |
| E. COLI | MR | 9 | 2023 |
| Revised Total Coliform Rule | MON | 6 | 2022 |
| Combined Radium (-226 and -228) | MR | 6 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 6 | 2024 |
| Lead and Copper Rule | MR | 3 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.