Water Quality: Seattle, WA
7 water systems • 1,160,858 people served
Some Concerns28
Total Violations
3
Health-Based Violations
7
Water Systems
1,160,858
Population Served
Water Quality Summary
Seattle has 3 health-based violations on record, meaning one or more contaminants were found above EPA-established safe levels. Contaminants involved: Fecal Coliform. In total, 28 violations are on record for 7 water systems serving 1,160,858 people.
Contaminants Found
Fecal Coliform
Water Systems Serving Seattle
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| SEATTLE PUBLIC UTILITIES | WA5377050 | Surface Water | 1,091,904 | 3 |
| KING COUNTY WATER DISTRICT #20 | WA5338950 | Surface Water | 38,974 | 0 |
| KING COUNTY WATER DISTRICT #125 | WA5341998 | Surface Water | 17,546 | 2 |
| SKYWAY WATER & SEWER | WA5338800 | Surface Water | 12,036 | 6 |
| Ravenwing Ranch | WA53AB782 | Groundwater | 250 | 0 |
| CHERRYWOOD MOBILE HOME MANOR | WA5312630 | Groundwater | 120 | 17 |
| Majestic Oaks Water System | WA5355860 | Groundwater | 28 | 0 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.