KILLARNEY WEST GOLF COURSE
PWS ID: OR4194156 · HILLSBORO, Oregon 97124
Population Served
75
Total Violations
71
Health-Based Violations
15
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 14
- Monitoring Violations
- 50
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 31 | 2010 |
| Coliform (TCR) | MCL | 14 | 2012 |
| Revised Total Coliform Rule | MON | 10 | 2021 |
| Nitrate | MR | 5 | 2022 |
| E. COLI | MR | 4 | 2022 |
| Public Notice | Other | 2 | 2012 |
| Revised Total Coliform Rule | TT | 1 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.