UNION
PWS ID: WA5351920 · UNION, Washington 98592-9649
Population Served
700
Total Violations
25
Health-Based Violations
6
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 275
- County
- Mason
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 17
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 12 | 2009 |
| Coliform (TCR) | MCL | 6 | 2000 |
| Coliform (TCR) | MR | 4 | 1994 |
| 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.