DAIRY CREEK TAVERN
PWS ID: OR4193915 · HILLSBORO, Oregon 97124
Population Served
50
Total Violations
108
Health-Based Violations
6
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Washington
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 98
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 61 | 2007 |
| COLIPHAGE | MR | 16 | 2024 |
| Nitrate | MR | 10 | 2025 |
| Revised Total Coliform Rule | MON | 7 | 2017 |
| E. COLI | MR | 4 | 2021 |
| Coliform (TCR) | MCL | 3 | 2009 |
| Revised Total Coliform Rule | MCL | 2 | 2022 |
| Public Notice | Other | 1 | 2022 |
| Revised Total Coliform Rule | TT | 1 | 2017 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.