Is Granite, Oklahoma tap water safe?
2 water systems report serving Granite. 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.
C
Mangum PWS
Serves 2,924 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 6 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
B
Oklahoma State Reformatory
Serves 999 people · Groundwater · Full report →
No health-based violations in the last 5 years; 11 monitoring/reporting violations; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).