GREYCLIFF REST AREA EASTBOUND
PWS ID: MT0001957 · BILLINGS, Montana 59104
Population Served
2,500
Total Violations
119
Health-Based Violations
62
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Sweet Grass
- School/Daycare
- No
- MCL Violations
- 62
- Monitoring Violations
- 57
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 40 | 2014 |
| Coliform (TCR) | MR | 28 | 2014 |
| Revised Total Coliform Rule | MCL | 19 | 2024 |
| E. COLI | MR | 18 | 2025 |
| Nitrate-Nitrite | MR | 8 | 2022 |
| Nitrate | MCL | 3 | 1981 |
| Revised Total Coliform Rule | MON | 3 | 2018 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.