OUR LADY OF THE VALLEY CATHOLIC CHURCH
PWS ID: MT0004551 · HELENA, Montana 59602
Population Served
502
Total Violations
19
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Lewis and Clark
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 11
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 7 | 2022 |
| Coliform (TCR) | MCL | 5 | 2007 |
| Coliform (TCR) | MR | 4 | 2009 |
| Revised Total Coliform Rule | Other | 3 | 2016 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.