CHINOOK WATER DISTRICT
PWS ID: WA5312800 · Chinook, Washington 98614
Population Served
664
Total Violations
37
Health-Based Violations
23
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 428
- County
- Pacific
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 10
- Treatment Tech Violations
- 23
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 23 | 2000 |
| Consumer Confidence Rule | Other | 3 | 2015 |
| Mercury | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
| Cadmium | MR | 1 | 1979 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Lead and Copper Rule | MR | 1 | 2000 |
| Nitrate | MR | 1 | 1979 |
| Barium | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Chromium | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.