GASTON, CITY OF
PWS ID: OR4100312 · GASTON, Oregon 97119
Population Served
625
Total Violations
46
Health-Based Violations
1
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 335
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 38
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MR | 11 | 2017 |
| TTHM | MR | 11 | 2017 |
| Lead and Copper Rule | MR | 8 | 2024 |
| Coliform (TCR) | MR | 6 | 2015 |
| Consumer Confidence Rule | Other | 4 | 2024 |
| Revised Total Coliform Rule | MON | 2 | 2016 |
| Coliform (TCR) | MCL | 1 | 1993 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.