Hawaii Tap Water Quality: Is It Safe to Drink?
2026 EPA water quality data for 0 community water systems serving residents in Hawaii. Find your water system to see violations, PFAS results, lead testing, and a safety grade — free.
Hawaii sources nearly all drinking water from volcanic aquifers recharged by tropical rainfall. Naturally low hardness makes Hawaiian tap water among the softest in the nation. Military fuel leaks near Pearl Harbor's Red Hill facility contaminated the Navy's water system in 2021, raising statewide awareness of groundwater vulnerability.
Find Your Water System in Hawaii
Enter your ZIP code to see EPA violations, lead test results, PFAS data, and a safety grade for your water.
📊 Data from EPA’s SDWIS
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🔄 Updated quarterly
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🏛️ 0+ water systems in Hawaii