Water quality by city
Water quality in Hawaii
EPA drinking-water records for 47 public water systems across 16 Hawaii cities — the contaminants found and the certified filters that remove them. Pick your city for its full report.
Know your ZIP? Go straight to your water report.
Check by ZIP → Honolulu ·PFAS 9 systems Hilo 7 systems Lihue 6 systems Wailuku 6 systems Schofield Barracks 4 systems Waikoloa 3 systems Jbpph 2 systems Pearl City 2 systems Hawaii National Park 1 system Hickam Afb 1 system Kaneohe Bay 1 system Kapalua 1 system Laie 1 system Maunaloa 1 system Pahoa 1 system Princeville 1 system