Is Copan, Oklahoma tap water safe?
2 water systems report serving Copan. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
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Copan Pwa
Serves 733 people · Surface water · Full report →
53 health-based violations in the last 5 years; 70 monitoring/reporting violations; 9 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
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Osage Co Rwd #20 (Hulah)
Serves 350 people · Surface water · Full report →
34 health-based violations in the last 5 years; 10 monitoring/reporting violations; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).