Is San Jose, Northern Mariana Islands tap water safe?
4 water systems report serving San Jose. Your water depends on which one serves your address. Check your bill if unsure.
B
Commonwealth Utilities Corp (Tinian)
Serves 3,005 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
Tinian Ice and Water
Serves 300 people · Groundwater · Full report →
No health-based violations in the last 5 years; 3 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
B
San Jose Mart Water
Serves 130 people · Groundwater · Full report →
No health-based violations in the last 5 years; 62 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
C
Modern Stationary
Serves 60 people · Groundwater · Full report →
3 health-based violations in the last 5 years; 2 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).