SUMPTER, CITY OF
PWS ID: OR4100845 · SUMPTER, Oregon 97877
Population Served
208
Total Violations
385
Health-Based Violations
38
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 299
- County
- Baker
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 332
- Treatment Tech Violations
- 32
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 175 | 2024 |
| Coliform (TCR) | MR | 42 | 2012 |
| Surface Water Treatment Rule | TT | 27 | 2020 |
| Interim Enhanced Surface Water Treatment Rule | MR | 22 | 2022 |
| TTHM | MR | 14 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 14 | 2025 |
| Nitrate | MR | 5 | 2019 |
| Coliform (TCR) | MCL | 5 | 1997 |
| Arsenic | MR | 5 | 2011 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 3 | 2019 |
| Total Polychlorinated Biphenyls (PCB) | MR | 2 | 2017 |
| Revised Total Coliform Rule | MON | 2 | 2020 |
| Interim Enhanced Surface Water Treatment Rule | TT | 2 | 2019 |
| Public Notice | Other | 2 | 2019 |
| Dalapon | MR | 1 | 2017 |
| Diquat | MR | 1 | 2017 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2017 |
| Simazine | MR | 1 | 2017 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2017 |
| Dinoseb | MR | 1 | 2017 |
| 2,4-D | MR | 1 | 2017 |
| 2,4,5-TP | MR | 1 | 2017 |
| Benzo(a)pyrene | MR | 1 | 2017 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2017 |
| ETHYLENE DIBROMIDE | MR | 1 | 2017 |
| cis-1,2-Dichloroethylene | MR | 1 | 2019 |
| Vinyl chloride | MR | 1 | 2019 |
| trans-1,2-Dichloroethylene | MR | 1 | 2019 |
| 1,1,1-Trichloroethane | MR | 1 | 2019 |
| 1,1,2-Trichloroethane | MR | 1 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.