LEWIS AND CLARK CAVERNS VISITOR CONTACT
PWS ID: MT0001395 · WHITEHALL, Montana 59759
Population Served
106
Total Violations
16
Health-Based Violations
1
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Jefferson
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 13
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate-Nitrite | MR | 8 | 2005 |
| Coliform (TCR) | MR | 5 | 2009 |
| Coliform (TCR) | MCL | 1 | 1998 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.