HARPER HIGH/ELEMENTARY SD 66
PWS ID: OR4190575 · HARPER, Oregon 97906
Population Served
117
Total Violations
44
Health-Based Violations
14
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 5
- County
- Malheur
- School/Daycare
- Yes
- MCL Violations
- 14
- Monitoring Violations
- 26
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 13 | 2023 |
| Coliform (TCR) | MR | 6 | 2014 |
| Arsenic | MR | 5 | 2025 |
| Revised Total Coliform Rule | MON | 4 | 2022 |
| TTHM | MR | 3 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2019 |
| Nitrite | MR | 2 | 1996 |
| Public Notice | Other | 2 | 2023 |
| Coliform (TCR) | MCL | 1 | 2006 |
| Lead and Copper Rule | MR | 1 | 1994 |
| OXAMYL | MR | 1 | 2005 |
| COLIPHAGE | MR | 1 | 2023 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.