UKIAH, CITY OF
PWS ID: OR4100913 · UKIAH, Oregon 97880
Population Served
235
Total Violations
178
Health-Based Violations
40
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 165
- County
- Umatilla
- School/Daycare
- No
- MCL Violations
- 39
- Monitoring Violations
- 125
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 99 | 2014 |
| Coliform (TCR) | MCL | 39 | 2014 |
| Lead and Copper Rule | MR | 9 | 2004 |
| E. COLI | MR | 8 | 2017 |
| Public Notice | Other | 7 | 2015 |
| Nitrate | MR | 5 | 2006 |
| Consumer Confidence Rule | Other | 2 | 2023 |
| Combined Radium (-226 and -228) | MR | 2 | 2014 |
| Revised Total Coliform Rule | MON | 1 | 2020 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1976 |
| 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.