WASHINGTON CO PKS - HAGG LAKE
PWS ID: OR4193925 · GASTON, Oregon 97119
Population Served
800
Total Violations
174
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Local
- Connections
- 1
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 160
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 100 | 2016 |
| Surface Water Treatment Rule | MR | 49 | 1997 |
| Nitrate | MR | 5 | 2005 |
| Revised Total Coliform Rule | MON | 4 | 2016 |
| Surface Water Treatment Rule | TT | 4 | 1994 |
| COLIPHAGE | MR | 2 | 2016 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.