Is Koyuk, Alaska tap water safe?
1 water system report serving Koyuk. Your water depends on which one serves your address. Check your bill if unsure.
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Koyuk Public Water System
Serves 277 people · Surface water · Full report →
4 health-based violations in the last 5 years; 66 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).