NAPAVINE CITY OF
PWS ID: WA5358200 · NAPAVINE, Washington 98565
Population Served
3,095
Total Violations
57
Health-Based Violations
10
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 889
- County
- Lewis
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 46
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 10 | 2004 |
| Barium | MR | 4 | 2005 |
| Mercury | MR | 4 | 2005 |
| Selenium | MR | 4 | 2005 |
| Arsenic | MR | 4 | 2005 |
| Cadmium | MR | 4 | 2005 |
| Chromium | MR | 4 | 2005 |
| Fluoride | MR | 4 | 2005 |
| Nickel | MR | 3 | 2005 |
| Antimony, Total | MR | 3 | 2005 |
| Beryllium, Total | MR | 3 | 2005 |
| Thallium, Total | MR | 3 | 2005 |
| CYANIDE | MR | 3 | 2005 |
| Nitrate | MR | 1 | 1979 |
| Coliform (TCR) | MR | 1 | 1991 |
| Consumer Confidence Rule | Other | 1 | 1999 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.