Sumner City Of
PWSID WA5385120 · Sumner, Washington · serves 16,438 people · groundwater source
A
Excellent
Violation history
| Date | Violation | Type | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | Revised Total Coliform Rule | MON | No | Resolved |
| 2022-07-01 | Consumer Confidence Rule | Other | No | Resolved |