WESTERN WAHKIAKUM
PWS ID: WA5395167 · CATHLAMET, Washington 98612
Population Served
791
Total Violations
66
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 362
- County
- Wahkiakum
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 63
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 9 | 2007 |
| Cadmium | MR | 9 | 2005 |
| Barium | MR | 4 | 2005 |
| Selenium | MR | 4 | 2005 |
| Arsenic | MR | 4 | 2005 |
| Mercury | MR | 4 | 2005 |
| Chromium | MR | 4 | 2005 |
| Fluoride | MR | 4 | 2005 |
| CYANIDE | MR | 3 | 2005 |
| Nickel | MR | 3 | 2005 |
| Antimony, Total | MR | 3 | 2005 |
| Thallium, Total | MR | 3 | 2005 |
| Beryllium, Total | MR | 3 | 2005 |
| Consumer Confidence Rule | Other | 2 | 2023 |
| Coliform (TCR) | MR | 2 | 1997 |
| TTHM | MR | 1 | 2014 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
| Nitrate | MR | 1 | 1979 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2014 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.