Hawaii Water Quality Reports
Comprehensive water quality data for 65 cities across Hawaii. View EPA-verified contaminant levels and get filter recommendations.
65
Cities
10
Safe
9
Monitor
0
At Risk
46
No Test Data
Water Quality by County
Explore aggregated water quality scores across Hawaii counties. Scores are calculated based on EPA data and weighted by population.
Loading map...
Data from 19 cities serving 905,981 people across 3 counties.
Have a water test? Get a free reading of every number
Upload your water test (PDF or a photo) and we'll email you a plain-English reading of each result โ free. Educational only, no medical claims.
Your upload also helps us keep local water data accurate โ we only ever share anonymized, area-level summaries.
Upload my testCities in Hawaii
Honolulu
People Served631K
93 results on file
Above Guidelines0
View Report โ
Wailuku
People Served75K
93 results on file
Above Guidelines0
View Report โ
Waipahu
People Served65K
20 contaminants listed, record not matched to an EPA water system
Above Guidelines0
View Report โ
Mililani
People Served51K
24 results on file
Above Guidelines0
View Report โ
Hilo
People Served39K
90 results on file
Above Guidelines0
View Report โ
Makawao
People Served30K
93 results on file
Above Guidelines0
View Report โ
Kailua-Kona
People Served30K
19 contaminants listed, record not matched to an EPA water system
Above Guidelines0
View Report โ
Lahaina
People Served20K
91 results on file
Above Guidelines0
View Report โ
Waikoloa
People Served12K
93 results on file
Above Guidelines0
View Report โ
Waipio
People Served12K
86 results on file
Above Guidelines0
View Report โ
Kaanapali
People Served8K
88 results on file
Above Guidelines0
View Report โ
Kula
People Served8K
86 results on file
Above Guidelines0
View Report โ
Kaumakani
People Served6K
20 contaminants listed, record not matched to an EPA water system
Above Guidelines0
View Report โ
Ewa Gentry
People Served5K
20 contaminants listed, record not matched to an EPA water system
Above Guidelines0
View Report โ
Kapalua
People Served4K
56 results on file
Above Guidelines0
View Report โ
Kaunakakai
People Served4K
90 results on file
Above Guidelines0
View Report โ
Hawaiian Beaches
People Served4K
87 results on file
Above Guidelines0
View Report โ
Lanai City
People Served3K
69 results on file
Above Guidelines0
View Report โ
Papaikou
People Served2K
67 results on file
Above Guidelines0
View Report โ
Pahoa
People Served2K
62 results on file
Above Guidelines0
View Report โ
Pepeekeo
People Served1K
68 results on file
Above Guidelines0
View Report โ
Kualapuu
People Served1K
9 results on file
Above Guidelines0
View Report โ
Kalaupapa
People Served0K
52 results on file
Above Guidelines0
View Report โ
Ahuimanu
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Aiea
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
East Honolulu
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Ewa Beach
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Halawa
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Hawaii National Park
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Hawaiian Acres
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Hawi
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Heeia
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Hickam Housing
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Holualoa
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Honokaa
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Iroquois Point
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Jbpph
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kahaluu-Keauhou
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kahaluu
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kahului
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kailua
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kaiminani
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kaloko
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kamuela
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kaneohe Base
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kaneohe Bay
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kaneohe
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kapaau
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Keaau
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kihei
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kunia
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Kurtistown
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Maunaloa
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Maunawili
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Mountain View
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Orchidlands Estates
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Pearl City
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Pukalani
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Puunene
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Schofield Barracks
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Urban Honolulu
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Waikoloa Village
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Waimalu
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Waimanalo
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Waimea
People Served0K
No contaminant results on file
Above Guidelines0
View Report โ
Get the Weekly Water Brief
One email a week on water testing, treatment, and what water-quality data means for your home.
One email a week. Unsubscribe anytime.