💧 ZIP Water Report

Tap water in Oak Harbor, WA — ZIP 98277

3 public water systems serving about 49,634 people.

A
Excellent

Water systems serving 98277

Anacortes City Of
PWSID WA5302200 · serves 25,109 · surface water
0 health-based / 0 total violations (5 yrs)
A
Oak Harbor City Of
PWSID WA5362650 · serves 23,675 · surface water
0 health-based / 2 total violations (5 yrs)
A
Kohala Ranch Water Co.
PWSID HI0000151 · serves 850 · groundwater
0 health-based / 0 total violations (5 yrs)
A

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology