Is Sedro Wooley, Washington tap water safe?
1 water system report serving Sedro Wooley. Your water depends on which one serves your address. Check your bill if unsure.
A
Upper Skagit
Serves 365 people · Groundwater · Full report →
No health-based violations in the last 5 years; 4 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).