PICTOGRAPH CAVE STATE PARK
PWS ID: MT0004267 · BILLINGS, Montana 59105
Population Served
250
Total Violations
31
Health-Based Violations
10
Water Source
Surface Water
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Yellowstone
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 21
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 15 | 2011 |
| Coliform (TCR) | MCL | 10 | 2010 |
| Revised Total Coliform Rule | MON | 6 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.