CUSTER REST AREA WESTBOUND
PWS ID: MT0001752 · BILLINGS, Montana 59104
Population Served
400
Total Violations
43
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Yellowstone
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 35
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 13 | 2010 |
| Nitrate-Nitrite | MR | 11 | 2021 |
| Revised Total Coliform Rule | MON | 7 | 2017 |
| Coliform (TCR) | MCL | 5 | 2015 |
| Nitrate | MR | 4 | 1998 |
| Revised Total Coliform Rule | TT | 3 | 2022 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.