HELIX, CITY OF
PWS ID: OR4100368 · HELIX, Oregon 97835
Population Served
190
Total Violations
96
Health-Based Violations
31
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 94
- County
- Umatilla
- School/Daycare
- No
- MCL Violations
- 31
- Monitoring Violations
- 56
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 22 | 2015 |
| Coliform (TCR) | MR | 12 | 2009 |
| Nitrate | MR | 6 | 2023 |
| Consumer Confidence Rule | Other | 6 | 2025 |
| Revised Total Coliform Rule | MCL | 6 | 2021 |
| Gross Alpha, Excl. Radon and U | MR | 5 | 1996 |
| Nitrate | MCL | 3 | 1989 |
| COLIPHAGE | MR | 2 | 2024 |
| BHC-GAMMA | MR | 1 | 2005 |
| Methoxychlor | MR | 1 | 2005 |
| Toxaphene | MR | 1 | 2005 |
| Diquat | MR | 1 | 2005 |
| Glyphosate | MR | 1 | 2005 |
| Simazine | MR | 1 | 2005 |
| Picloram | MR | 1 | 2005 |
| Atrazine | MR | 1 | 2005 |
| 2,4-D | MR | 1 | 2005 |
| 2,4,5-TP | MR | 1 | 2005 |
| Benzo(a)pyrene | MR | 1 | 2005 |
| Pentachlorophenol | MR | 1 | 2005 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 2005 |
| Chlordane | MR | 1 | 2005 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
| LASSO | MR | 1 | 2005 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2005 |
| Dinoseb | MR | 1 | 2005 |
| HEXACHLOROBENZENE | MR | 1 | 2005 |
| OXAMYL | MR | 1 | 2005 |
| Endrin | MR | 1 | 2005 |
| Dalapon | MR | 1 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.