WALLOWA LAKE TRAMWAY
PWS ID: OR4194597 · LA GRANDE, Oregon 97850
Population Served
300
Total Violations
69
Health-Based Violations
5
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Wallowa
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 58
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 32 | 2015 |
| Nitrate | MR | 19 | 2015 |
| Revised Total Coliform Rule | MON | 4 | 2025 |
| E. COLI | MR | 3 | 2025 |
| Coliform (TCR) | MCL | 3 | 2012 |
| Public Notice | Other | 2 | 2012 |
| Revised Total Coliform Rule | TT | 2 | 2016 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.