SUMNER WATER CORPORATION
PWS ID: OR4100209 · COOS BAY, Oregon 97420
Population Served
50
Total Violations
650
Health-Based Violations
11
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 15
- County
- Coos
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 628
- Treatment Tech Violations
- 11
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 138 | 2025 |
| Interim Enhanced Surface Water Treatment Rule | MR | 69 | 2025 |
| Revised Total Coliform Rule | MON | 37 | 2025 |
| Surface Water Treatment Rule | TT | 11 | 2022 |
| Nitrate | MR | 8 | 2023 |
| Combined Radium (-226 and -228) | MR | 8 | 2025 |
| Gross Alpha, Excl. Radon and U | MR | 8 | 2025 |
| cis-1,2-Dichloroethylene | MR | 7 | 2025 |
| Xylenes, Total | MR | 7 | 2025 |
| o-Dichlorobenzene | MR | 7 | 2025 |
| p-Dichlorobenzene | MR | 7 | 2025 |
| Vinyl chloride | MR | 7 | 2025 |
| 1,1-Dichloroethylene | MR | 7 | 2025 |
| 1,1,1-Trichloroethane | MR | 7 | 2025 |
| Tetrachloroethylene | MR | 7 | 2025 |
| CHLOROBENZENE | MR | 7 | 2025 |
| Ethylbenzene | MR | 7 | 2025 |
| Endrin | MR | 7 | 2025 |
| Methoxychlor | MR | 7 | 2025 |
| Endothall | MR | 7 | 2025 |
| Glyphosate | MR | 7 | 2025 |
| OXAMYL | MR | 7 | 2025 |
| Di(2-ethylhexyl) phthalate | MR | 7 | 2025 |
| Dinoseb | MR | 7 | 2025 |
| Carbofuran | MR | 7 | 2025 |
| Atrazine | MR | 7 | 2025 |
| LASSO | MR | 7 | 2025 |
| Heptachlor epoxide | MR | 7 | 2025 |
| 2,4-D | MR | 7 | 2025 |
| 2,4,5-TP | MR | 7 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.