HAT ROCK MOBILE COURT
PWS ID: OR4191232 · BEAVERTON, Oregon 97008-7105
Population Served
60
Total Violations
28
Health-Based Violations
7
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 28
- County
- Umatilla
- School/Daycare
- No
- MCL Violations
- 7
- Monitoring Violations
- 18
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 7 | 2010 |
| Coliform (TCR) | MR | 2 | 2008 |
| Lead and Copper Rule | MR | 2 | 1994 |
| Arsenic | MR | 1 | 1996 |
| Barium | MR | 1 | 1996 |
| Cadmium | MR | 1 | 1996 |
| Chromium | MR | 1 | 1996 |
| Mercury | MR | 1 | 1996 |
| Nickel | MR | 1 | 1996 |
| Nitrate | MR | 1 | 2002 |
| Consumer Confidence Rule | Other | 1 | 2023 |
| Nitrite | MR | 1 | 1996 |
| CYANIDE | MR | 1 | 1996 |
| Selenium | MR | 1 | 1996 |
| Fluoride | MR | 1 | 1996 |
| Antimony, Total | MR | 1 | 1996 |
| Thallium, Total | MR | 1 | 1996 |
| Beryllium, Total | MR | 1 | 1996 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.