MCNULTY WATER PUD
PWS ID: OR4100725 · ST. HELENS, Oregon 97051
Population Served
2,500
Total Violations
155
Health-Based Violations
21
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 949
- County
- Columbia
- School/Daycare
- No
- MCL Violations
- 21
- Monitoring Violations
- 125
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 28 | 2012 |
| Coliform (TCR) | MCL | 14 | 2009 |
| Arsenic | MR | 7 | 2025 |
| Arsenic | MCL | 7 | 2020 |
| Nitrate | MR | 6 | 2022 |
| 1,2,4-Trichlorobenzene | MR | 3 | 2020 |
| cis-1,2-Dichloroethylene | MR | 3 | 2020 |
| Xylenes, Total | MR | 3 | 2020 |
| DICHLOROMETHANE | MR | 3 | 2020 |
| o-Dichlorobenzene | MR | 3 | 2020 |
| trans-1,2-Dichloroethylene | MR | 3 | 2020 |
| 1,2-Dichloroethane | MR | 3 | 2020 |
| Carbon tetrachloride | MR | 3 | 2020 |
| 1,2-Dichloropropane | MR | 3 | 2020 |
| Trichloroethylene | MR | 3 | 2020 |
| Tetrachloroethylene | MR | 3 | 2020 |
| Benzene | MR | 3 | 2020 |
| Toluene | MR | 3 | 2020 |
| Ethylbenzene | MR | 3 | 2020 |
| Styrene | MR | 3 | 2020 |
| Lead and Copper Rule | MR | 3 | 2023 |
| p-Dichlorobenzene | MR | 3 | 2020 |
| 1,1-Dichloroethylene | MR | 3 | 2020 |
| 1,1,1-Trichloroethane | MR | 3 | 2020 |
| 1,1,2-Trichloroethane | MR | 3 | 2020 |
| Consumer Confidence Rule | Other | 3 | 2024 |
| Vinyl chloride | MR | 3 | 2020 |
| CHLOROBENZENE | MR | 3 | 2020 |
| Combined Uranium | MR | 2 | 2014 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 2014 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.