Columbia12 Touchet Chevron
PWS ID: WA5388888 · Walla Walla, Washington 99362
Population Served
104
Total Violations
58
Health-Based Violations
19
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Walla Walla
- School/Daycare
- No
- MCL Violations
- 19
- Monitoring Violations
- 39
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 31 | 2024 |
| Nitrate | MCL | 12 | 2024 |
| Coliform (TCR) | MR | 8 | 2007 |
| Coliform (TCR) | MCL | 7 | 2004 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.