Tap water in Seattle, WA — ZIP 98136
2 public water systems serving about 1,162,811 people.
A
Excellent
Water systems serving 98136
Seattle Public Utilities
PWSID WA5377050 · serves 1,161,961 ·
surface water
0 health-based / 0 total violations (5 yrs)
Kohala Ranch Water Co.
PWSID HI0000151 · serves 850 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology