WESTERN HILLS MH ESTATES
PWS ID: OR4101172 · RAINIER, Oregon 97048
Population Served
375
Total Violations
147
Health-Based Violations
25
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 109
- County
- Columbia
- School/Daycare
- No
- MCL Violations
- 13
- Monitoring Violations
- 106
- Treatment Tech Violations
- 12
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 23 | 2014 |
| Coliform (TCR) | MCL | 13 | 2010 |
| Groundwater Rule | TT | 12 | 2024 |
| Nitrate | MR | 10 | 2021 |
| Arsenic | MR | 6 | 2011 |
| Public Notice | Other | 6 | 2024 |
| Lead and Copper Rule | MR | 5 | 2017 |
| E. COLI | MR | 4 | 2022 |
| COLIPHAGE | MR | 4 | 2017 |
| Groundwater Rule | MR | 2 | 2025 |
| Endrin | MR | 1 | 2005 |
| BHC-GAMMA | MR | 1 | 2005 |
| Dalapon | MR | 1 | 2005 |
| Diquat | MR | 1 | 2005 |
| Endothall | MR | 1 | 2005 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2005 |
| Simazine | MR | 1 | 2005 |
| Picloram | MR | 1 | 2005 |
| Hexachlorocyclopentadiene | MR | 1 | 2005 |
| Carbofuran | 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 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2005 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2005 |
| cis-1,2-Dichloroethylene | MR | 1 | 2005 |
| Xylenes, Total | MR | 1 | 2005 |
| Vinyl chloride | MR | 1 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.