ENTERPRISE, CITY OF
PWS ID: OR4100278 · ENTERPRISE, Oregon 97828
Population Served
2,107
Total Violations
38
Health-Based Violations
7
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,325
- County
- Wallowa
- School/Daycare
- No
- MCL Violations
- 7
- Monitoring Violations
- 30
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 9 | 2008 |
| Coliform (TCR) | MCL | 7 | 1997 |
| Nitrate | MR | 5 | 2021 |
| Revised Total Coliform Rule | MON | 2 | 2020 |
| 2,4,5-TP | MR | 1 | 2005 |
| Endothall | MR | 1 | 2005 |
| TTHM | MR | 1 | 2005 |
| Consumer Confidence Rule | Other | 1 | 2024 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
| Barium | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Mercury | MR | 1 | 1979 |
| Cadmium | MR | 1 | 1979 |
| Chromium | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1976 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2005 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 2005 |
| Selenium | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.