DEER ISLAND WATERWORKS
PWS ID: OR4101233 · ST HELENS, Oregon 97051
Population Served
90
Total Violations
311
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 33
- County
- Columbia
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 282
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 67 | 2025 |
| Coliform (TCR) | MR | 25 | 2012 |
| Nitrate | MR | 17 | 2005 |
| Consumer Confidence Rule | Other | 14 | 2025 |
| Lead and Copper Rule | TT | 6 | 2024 |
| TTHM | MR | 5 | 2012 |
| Total Haloacetic Acids (HAA5) | MR | 5 | 2012 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 4 | 2020 |
| Toxaphene | MR | 4 | 2020 |
| OXAMYL | MR | 4 | 2020 |
| Carbofuran | MR | 4 | 2020 |
| Total Polychlorinated Biphenyls (PCB) | MR | 4 | 2020 |
| Chlordane | MR | 4 | 2020 |
| Public Notice | Other | 4 | 2025 |
| ETHYLENE DIBROMIDE | MR | 4 | 2020 |
| Dinoseb | MR | 3 | 2005 |
| Endothall | MR | 3 | 2005 |
| Endrin | MR | 3 | 2005 |
| Heptachlor | MR | 3 | 2005 |
| HEXACHLOROBENZENE | MR | 3 | 2005 |
| Methoxychlor | MR | 3 | 2005 |
| Picloram | MR | 3 | 2005 |
| Simazine | MR | 3 | 2005 |
| 1,1,1-Trichloroethane | MR | 3 | 2005 |
| 1,1,2-Trichloroethane | MR | 3 | 2005 |
| 1,2-Dichloropropane | MR | 3 | 2005 |
| Benzene | MR | 3 | 2005 |
| Carbon tetrachloride | MR | 3 | 2005 |
| cis-1,2-Dichloroethylene | MR | 3 | 2005 |
| DICHLOROMETHANE | MR | 3 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.